Fix debug runtime overflow and unaligned unwind metadata access by DanielZ224 · Pull Request #1184 · Lind-Project/lind-wasm

DanielZ224 · 2026-05-10T01:12:12Z

Summary

This PR fixes debug-build runtime failures exposed by grate tests involving fork/thread execution.

The failures appeared in debug lind-boot runs as:

misaligned pointer dereference in lind-multi-process/src/lib.rs
attempt to add with overflow in wasmtime/src/runtime/instance.rs
Grate test timeouts after the initial panic was avoided

The root cause was that debug builds enforce stricter runtime checks than release builds. Some asyncify unwind metadata was accessed through direct u64 pointer dereferences, even though the unwind data address may not always be 8-byte aligned. In addition, GOT memory relocation used checked debug addition, which can panic on overflow even though release builds effectively use wrapping arithmetic.

Changes

Replaced direct u64 pointer reads/writes on asyncify unwind metadata with:
- std::ptr::read_unaligned
- std::ptr::write_unaligned
Updated GOT memory relocation arithmetic from:

let val = raw as u32 + memory_base;

to

let val = (raw as u32).wrapping_add(memory_base);

This makes debug behavior consistent with release behavior and prevents debug-only overflow panics during GOT relocation.

Validation

Built debug lind-boot:

cargo build --manifest-path src/lind-boot/Cargo.toml \
  --no-default-features --features fdtables-dashmaparray

cp src/lind-boot/target/debug/lind-boot build/lind-boot

Ran the failing grate tests with debug lind-boot:

RUST_BACKTRACE=1 python3 scripts/harnesses/gratetestreport.py \
  --testfiles \
  tests/grate-tests/concurrent-request/race-test_grate.c \
  tests/grate-tests/concurrent-request/thread_race_grate.c \
  --timeout 600 \
  --debug \
  --generate-html

Result:

[INFO] [1/2] concurrent-request/race-test_grate.c
[INFO] SUCCESS
[INFO] [2/2] concurrent-request/thread_race_grate.c
[INFO] SUCCESS

Also verified a reduced temporary reproduction case with debug lind-boot:

tmp-debug-939/race-test-small_grate.c: SUCCESS

Notes

The temporary reduced test files and generated reports were not included in this PR.

Related Issue

Related to #939.

…pointer

github-actions · 2026-05-10T01:40:05Z

End-to-End Test Report

Test Preview

grate harness

Grate Test Report

Metric	Value
Total	14
Success	14
Failures	0
Compile Failures	0
Runtime Failures	0
Timeout Failures	0
Missing Pair Failures	0

Cases

Test	Status	Output
concurrent-request/geteuid_grate.c	Success	STDOUT: [Grate\|geteuid] Registering geteuid handler for cage 2 in grate 1 with fn ptr addr: 3 [Cage \| geteuid] PASS: 1000000 calls returned 10 [Grate\|geteuid] PASS STDERR:
concurrent-request/race-test_grate.c	Success	STDOUT: pass STDERR:
concurrent-request/thread_race_grate.c	Success	STDOUT: [thread_race] Registering handler for cage 2 in grate 1 with fn ptr addr: 3 [thread_race] PASS: 20 threads x 100000 calls returned 10 [thread_race] PASS STDERR:
copy-data-between-cages/cp-stncpy_grate.c	Success	STDOUT: [cage] pathname addr=0xfffb6ff9 [cage] pathname='random' [Grate\|open] intercepts open call: thiscage=1, arg1cage=2 [Grate\|open] copied pathname: random [cage] fd=10 STDERR:
copy-data-between-cages/cpdata_grate.c	Success	STDOUT: [Grate\|open] intercepts open call: thiscage=1, arg1cage=2 [Grate\|open] copied pathname: random [cage] fd=10 STDERR:
interposing-calls/fork-with-newret_grate.c	Success	STDOUT: [Grate\|interpose-fork] Registering fork handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-fork] Handling function ptr: 3 from cage: 1 [Grate\|interpose-fork] In fork_grate 1 handler for cage: 1 [Cage] Forked process with PID: 10 [Grate\|interpose-fork] PASS STDERR:
interposing-calls/interpose-exec_grate.c	Success	STDOUT: [Grate\|interpose-exec] Registering exec handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-exec] Handling function ptr: 3 from cage: 1 [Grate\|interpose-exec] In exec_grate 1 handler for cage: 1 [Grate\|interpose-exec] Handling function ptr: 3 from cage: 1 [Grate\|interpose-exec] In exec_grate 1 handler for cage: 1 Exec successful, argv[1]: --execd [Grate\|interpose-exec] PASS STDERR:
interposing-calls/interpose-exit_grate.c	Success	STDOUT: [Grate\|interpose-exit] Registering exit handler for cage 2 in grate 1 with fn ptr addr: 3 Exiting... [Grate\|interpose-exit] PASS STDERR:
interposing-calls/interpose-fork_grate.c	Success	STDOUT: [Grate\|interpose-fork] Registering fork handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-fork] Handling function ptr: 3 from cage: 1 [Grate\|interpose-fork] In fork_grate 1 handler for cage: 1 [Grate\|interpose-fork] PASS STDERR:
interposing-calls/interpose-mmap_grate.c	Success	STDOUT: [Grate\|interpose-mmap] Registering mmap handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 mmap test: PASS [Grate\|interpose-mmap] PASS STDERR:
interposing-calls/interpose-register_grate.c	Success	STDOUT: [Grate\|interpose-register] Registering register_handler for cage 2 in grate 1 with fn ptr addr: 4 [cage] registering 107. grateid: 2 cageid: 3 [Grate\|interpose-register] Handling function ptr: 4 from cage: 1 [Grate\|interpose-register] In register_grate 1 handler for cage: 1 [Grate\|geteuid] Registering geteuid handler for cage 1 in grate 1 with fn ptr addr: 3 [Grate\|interpose-register] Handling function ptr: 3 from cage: 1 [Grate\|interpose-register] In register_grate 1 handler for cage: 1 [Grate\|interpose-register] PASS STDERR:
multi-register_grate.c	Success	STDOUT: [Grate\|multi-register_grate] Registering geteuid handler for cage 2 in grate 1 with fn ptr addr: 4 [Grate\|multi-register_grate] Registering getuid handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|multi-register_grate] Handling function ptr: 4 from cage: 1 [Grate\|multi-register_grate] In multi-register_grate 1 handler for cage: 1 [Grate\|multi-register_grate] Handling function ptr: 3 from cage: 1 [Grate\|multi-register_grate] In multi-register_grate 1 handler for cage: 1 [Cage \| multi-register] PASS: geteuid=10, getuid=20 [Grate\|multi-register] PASS STDERR:
simple-tests/diff-cage-args_grate.c	Success	STDOUT: [Grate\|diff-cage-args] Handling function ptr: 3 from cage: 1 [Grate\|diff-cage-args] In open_grate 1 handler for cage: 1 Hello world. FD=-1 [Grate\|diff-cage-args] Handling function ptr: 4 from cage: 1 Goodbye world! ret=4321 buf=helloworld [Grate\|diff-cage-args] PASS STDERR:
simple-tests/geteuid_grate.c	Success	STDOUT: [Grate\|geteuid] Registering geteuid handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|geteuid] Handling function ptr: 3 from cage: 1 [Grate\|geteuid] In geteuid_grate 1 handler for cage: 1 [Cage \| geteuid] PASS: geteuid ret = 10 [Grate\|geteuid] PASS STDERR:

static harness

Test Report

Deterministic Tests

Summary

Metric	Count
Total Test Cases	3
Number of Successes	3
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

Test Results by Category

Test Case	Status	Error Type	Native Time	Wasm Time	Output
Static Tests
fork_simple.c	Success	None	0.057122s	4.423848s	Success
thread.c	Success	None	0.050583s	4.445093s	Success
tls_test.c	Success	None	0.061390s	4.439597s	Success

Fail Tests

Summary

Metric	Count
Total Test Cases	0
Number of Successes	0
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

wasm harness

Test Report

Deterministic Tests

Summary

Metric	Count
Total Test Cases	218
Number of Successes	218
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

Test Results by Category

Test Case	Status	Error Type	Native Time	Wasm Time	Output
File Tests
chartests.c	Success	None	0.050603s	0.153659s	Success
chdir_getcwd.c	Success	None	0.051744s	0.115263s	Success
chmod.c	Success	None	0.057090s	0.125466s	Success
clock_gettime_highlevel.c	Success	None	0.123245s	0.171071s	Success
clock_gettime_simple.c	Success	None	0.047055s	0.108263s	Success
cloexec.c	Success	None	0.056080s	0.132510s	Success
close.c	Success	None	0.063436s	0.137767s	Success
creat_access.c	Success	None	0.054337s	0.116622s	Success
doubleclose.c	Success	None	0.047152s	0.100139s	Success
dup.c	Success	None	0.048160s	0.116664s	Success
dup2.c	Success	None	0.052760s	0.114469s	Success
dup3.c	Success	None	0.051515s	0.114932s	Success
dupwrite.c	Success	None	0.054042s	0.112667s	Success
etc_conf.c	Success	None	0.049365s	0.117275s	Success
faccessat.c	Success	None	0.050626s	0.116910s	Success
fchdir.c	Success	None	0.056413s	0.127512s	Success
fchmod.c	Success	None	0.055592s	0.126012s	Success
fchmodat.c	Success	None	0.050101s	0.115528s	Success
fcntl.c	Success	None	0.053740s	0.131391s	Success
fdatasync.c	Success	None	0.053845s	0.110530s	Success
filetest.c	Success	None	0.053941s	0.112142s	Success
filetest1000.c	Success	None	0.063076s	0.126277s	Success
flock.c	Success	None	0.061897s	0.150704s	Success
fstat.c	Success	None	0.055974s	0.126619s	Success
fstatfs.c	Success	None	0.049454s	0.108862s	Success
fsync.c	Success	None	0.053352s	0.111937s	Success
ftruncate.c	Success	None	0.058608s	0.218250s	Success
getcwd.c	Success	None	0.050624s	0.107001s	Success
getcwd_null.c	Success	None	0.055226s	0.119640s	Success
getpgid.c	Success	None	0.048773s	0.105693s	Success
getrandom.c	Success	None	0.053827s	0.130082s	Success
ioctl.c	Success	None	0.055795s	0.118337s	Success
link.c	Success	None	0.057602s	0.157565s	Success
locale_test.c	Success	None	0.065291s	0.317945s	Success
lseek.c	Success	None	0.058861s	0.190312s	Success
lstat.c	Success	None	0.058373s	0.134766s	Success
mkdir_rmdir.c	Success	None	0.054703s	0.118415s	Success
mkfifo_test.c	Success	None	0.059765s	0.156812s	Success
mknod.c	Success	None	0.053105s	0.124584s	Success
nocancel_io.c	Success	None	0.058079s	0.142516s	Success
open.c	Success	None	0.049001s	0.104632s	Success
openat.c	Success	None	0.050262s	0.113478s	Success
path_conversion_safety.c	Success	None	0.058259s	0.134612s	Success
ppoll.c	Success	None	0.057601s	0.125768s	Success
pread_pwrite.c	Success	None	0.051766s	0.119019s	Success
preadv_pwritev.c	Success	None	0.057205s	0.132408s	Success
printf.c	Success	None	0.046689s	0.099499s	Success
prlimit64.c	Success	None	0.048947s	0.106320s	Success
read.c	Success	None	0.055242s	0.126531s	Success
readbytes.c	Success	None	0.051098s	0.109637s	Success
readdir_basic.c	Success	None	0.057963s	0.147655s	Success
readlink.c	Success	None	0.054378s	0.122925s	Success
readlinkat.c	Success	None	0.056911s	0.125539s	Success
readv_writev_test.c	Success	None	0.055728s	0.127596s	Success
rename.c	Success	None	0.056384s	0.117381s	Success
renameat.c	Success	None	0.056613s	0.130958s	Success
sc-writev.c	Success	None	0.052665s	0.116093s	Success
stat.c	Success	None	0.055394s	0.124183s	Success
statfs.c	Success	None	0.049414s	0.108149s	Success
symlink.c	Success	None	0.057093s	0.147020s	Success
sync_file_range.c	Success	None	0.053075s	0.112028s	Success
timespec_time_t_compat.c	Success	None	0.051883s	0.111030s	Success
truncate.c	Success	None	0.056319s	0.138498s	Success
unlink.c	Success	None	0.056380s	0.152187s	Success
unlinkat.c	Success	None	0.056559s	0.133111s	Success
utimensat.c	Success	None	0.053870s	0.134783s	Success
write.c	Success	None	0.048176s	0.100299s	Success
writeloop.c	Success	None	0.056468s	0.118078s	Success
writepartial.c	Success	None	0.055307s	0.108745s	Success
writev.c	Success	None	0.055369s	0.124269s	Success
Math Tests
math_link_smoke.c	Success	None	0.058188s	0.107623s	Success
math_tests.c	Success	None	0.062830s	0.136728s	Success
printf_float.c	Success	None	0.058578s	0.132683s	Success
Memory Tests
brk.c	Success	None	0.056087s	0.110976s	Success
fork_large_memory.c	Success	None	0.084099s	0.377359s	Success
malloc.c	Success	None	0.050450s	0.101649s	Success
malloc_large.c	Success	None	0.050986s	0.102650s	Success
memcpy.c	Success	None	0.050396s	0.106416s	Success
memory_error_test.c	Success	None	0.056196s	0.135246s	Success
mmap.c	Success	None	0.047579s	0.103133s	Success
mmap_aligned.c	Success	None	0.049631s	0.118685s	Success
mmap_complicated.c	Success	None	0.054559s	0.127508s	Success
mmap_file.c	Success	None	0.054770s	0.116683s	Success
mmap_shared.c	Success	None	0.053529s	0.122973s	Success
mmaptest.c	Success	None	0.051354s	0.109408s	Success
mprotect.c	Success	None	0.048901s	0.104982s	Success
mprotect_boundary.c	Success	None	0.048675s	0.114614s	Success
mprotect_end_region.c	Success	None	0.050813s	0.109669s	Success
mprotect_middle_region.c	Success	None	0.047966s	0.109936s	Success
mprotect_multiple_times.c	Success	None	0.048918s	0.110523s	Success
mprotect_same_value.c	Success	None	0.048855s	0.108511s	Success
mprotect_spanning_regions.c	Success	None	0.051204s	0.126501s	Success
munmap_adjacent_shm.c	Success	None	0.051137s	0.125371s	Success
sbrk.c	Success	None	0.050488s	0.108035s	Success
segfault.c	Success	None	0.055623s	0.140026s	Success
shm.c	Success	None	0.054605s	0.129531s	Success
shmtest.c	Success	None	0.049391s	0.110409s	Success
thread_malloc_sequential.c	Success	None	0.056175s	0.157389s	Success
vtable.c	Success	None	0.059562s	0.122798s	Success
Networking Tests
accept4.c	Success	None	0.059945s	0.131942s	Success
dns_resolve_test.c	Success	None	0.054648s	0.117164s	Success
dnstest.c	Success	None	0.054484s	0.117800s	Success
epoll_badfd.c	Success	None	0.049979s	0.107085s	Success
epoll_edge_triggered.c	Success	None	0.210986s	0.379083s	Success
epollcreate1.c	Success	None	0.055930s	0.129082s	Success
error_handling_net.c	Success	None	0.061946s	0.191115s	Success
getaddrinfo_test.c	Success	None	0.058161s	0.152903s	Success
getaddrinfo_unspec.c	Success	None	0.064372s	0.126628s	Success
gethostname.c	Success	None	0.048562s	0.103625s	Success
getifaddrs.c	Success	None	0.056358s	0.119693s	Success
getsockname.c	Success	None	0.058805s	0.119256s	Success
getsockopt.c	Success	None	0.057913s	0.155579s	Success
ipv6_basic.c	Success	None	0.060161s	0.153102s	Success
makepipe.c	Success	None	0.048040s	0.101188s	Success
nonblocking_eagain.c	Success	None	0.060513s	0.185606s	Success
pipe.c	Success	None	0.056358s	0.125530s	Success
pipe2.c	Success	None	0.056155s	0.117611s	Success
pipeinput.c	Success	None	0.057559s	0.142190s	Success
pipeinput2.c	Success	None	0.057958s	0.147029s	Success
pipeonestring.c	Success	None	0.057940s	0.140925s	Success
pipepong.c	Success	None	0.057886s	0.147430s	Success
pipewrite.c	Success	None	0.051812s	0.133232s	Success
poll.c	Success	None	0.056031s	0.115397s	Success
recvfrom-sendto.c	Success	None	0.057089s	0.125709s	Success
sendmsg_recvmsg_test.c	Success	None	0.057513s	0.130316s	Success
serverclient.c	Success	None	0.055360s	0.131838s	Success
shutdown.c	Success	None	0.056733s	0.127449s	Success
shutdown_fork.c	Success	None	0.056597s	0.130255s	Success
simple-select.c	Success	None	0.057508s	0.141141s	Success
simple_epoll.c	Success	None	0.055253s	0.121977s	Success
socket.c	Success	None	0.054068s	0.113996s	Success
socket_cloexec.c	Success	None	0.054197s	0.113468s	Success
socket_options_advanced.c	Success	None	0.060110s	0.171304s	Success
socketepoll.c	Success	None	0.054240s	0.115873s	Success
socketpair.c	Success	None	0.053281s	0.125716s	Success
socketselect.c	Success	None	0.054202s	0.122216s	Success
udp_send_recv.c	Success	None	0.161238s	0.266139s	Success
uds-getsockname.c	Success	None	0.056149s	0.116080s	Success
uds-nb-select.c	Success	None	2.063716s	2.177230s	Success
uds-serverclient.c	Success	None	0.058267s	0.147172s	Success
uds-socketselect.c	Success	None	0.054950s	0.126481s	Success
uds_listen_poll.c	Success	None	1.061198s	1.159817s	Success
writev_socket.c	Success	None	0.058371s	0.153490s	Success
Process Tests
barrier_test.c	Success	None	0.054348s	0.124287s	Success
chain_thread.c	Success	None	1.055758s	1.130457s	Success
ctor_syscall_test.c	Success	None	0.046637s	0.104170s	Success
cxa_atexit_test.c	Success	None	0.050976s	0.109537s	Success
exec_non_utf8.c	Success	None	0.053713s	0.113641s	Success
execve_shebang.c	Success	None	0.055319s	0.115248s	Success
exit.c	Success	None	0.052086s	0.105207s	Success
exit_failure.c	Success	None	0.054492s	0.121397s	Success
exit_group_thread.c	Success	None	0.057448s	0.133232s	Success
exit_status_first_wins.c	Success	None	0.058255s	0.135677s	Success
flockfile_test.c	Success	None	0.055694s	0.130879s	Success
fork2malloc.c	Success	None	0.055687s	0.126443s	Success
fork_select.c	Success	None	0.054654s	0.130922s	Success
fork_simple.c	Success	None	0.054443s	0.119441s	Success
fork_syscall.c	Success	None	0.059530s	0.346670s	Success
fork_tls_ctype.c	Success	None	0.057062s	0.145144s	Success
forkandopen.c	Success	None	0.057036s	0.135817s	Success
forkdup.c	Success	None	0.058985s	0.129964s	Success
forkexecuid.c	Success	None	0.053998s	0.135862s	Success
forkexecv-arg.c	Success	None	0.053972s	0.126603s	Success
forkexecv.c	Success	None	0.052790s	0.121649s	Success
forkfiles.c	Success	None	0.055411s	0.128869s	Success
forkmalloc.c	Success	None	0.055848s	0.120098s	Success
forknodup.c	Success	None	0.056053s	0.132065s	Success
function-ptr.c	Success	None	0.050369s	0.105299s	Success
getegid_syscall.c	Success	None	0.055771s	0.265841s	Success
getgid_syscall.c	Success	None	0.056776s	0.272598s	Success
getpid.c	Success	None	0.048963s	0.102499s	Success
getpid_syscall.c	Success	None	0.057272s	0.276122s	Success
getppid.c	Success	None	0.055473s	0.121721s	Success
getppid_syscall.c	Success	None	0.058344s	0.243201s	Success
getuid.c	Success	None	0.055675s	0.112564s	Success
getuid_syscall.c	Success	None	0.054783s	0.179043s	Success
hello-arg.c	Success	None	0.046680s	0.105155s	Success
hello.c	Success	None	0.047067s	0.099411s	Success
longjmp.c	Success	None	0.048045s	0.107232s	Success
mutex.c	Success	None	2.058330s	2.124896s	Success
printf_deadlock_smoke.c	Success	None	0.063046s	0.155741s	Success
printf_thread_test.c	Success	None	0.056141s	0.130404s	Success
sem_forks.c	Success	None	0.057390s	0.139673s	Success
setsid.c	Success	None	0.048550s	0.101126s	Success
template.c	Success	None	0.054241s	0.148675s	Success
test_exec_nofork.c	Success	None	0.054447s	0.122327s	Success
test_unlink_open_file.c	Success	None	0.050373s	0.105611s	Success
thread-guard.c	Success	None	0.052843s	0.122809s	Success
thread-test.c	Success	None	0.050711s	0.113033s	Success
thread.c	Success	None	0.050578s	0.113375s	Success
thread_cageid_race.c	Success	None	0.051303s	0.164790s	Success
tls_test.c	Success	None	0.053225s	0.126934s	Success
uname.c	Success	None	0.049566s	0.104421s	Success
wait.c	Success	None	0.051685s	0.125893s	Success
waitpid_anychild.c	Success	None	0.054000s	0.122728s	Success
waitpid_syscall.c	Success	None	1.055686s	1.174823s	Success
waitpid_wnohang.c	Success	None	0.055910s	0.125642s	Success
Signal Tests
alarm.c	Success	None	7.054606s	7.145936s	Success
eintr_fork_signal.c	Success	None	1.056285s	1.138034s	Success
kill.c	Success	None	1.054078s	1.125081s	Success
setitimer.c	Success	None	7.055388s	7.150336s	Success
sigalrm.c	Success	None	2.055735s	2.131013s	Success
sigaltstack.c	Success	None	0.056245s	0.124870s	Success
sigchld.c	Success	None	1.056613s	1.124381s	Success
signal-fork.c	Success	None	4.056441s	4.124342s	Success
signal-simple.c	Success	None	0.055693s	0.115980s	Success
signal_SIGCHLD.c	Success	None	0.053689s	0.127601s	Success
signal_fork.c	Success	None	0.052333s	0.128273s	Success
signal_int_ignored.c	Success	None	2.054860s	2.124929s	Success
signal_kill_cleanup.c	Success	None	1.053275s	1.120405s	Success
signal_procmask.c	Success	None	0.050610s	0.114847s	Success
signal_read_interrupt.c	Success	None	0.558439s	0.632031s	Success
signal_recursive.c	Success	None	0.050361s	0.119232s	Success
signal_sa_mask.c	Success	None	0.049772s	0.113898s	Success
signal_select_interrupt.c	Success	None	0.558705s	0.634515s	Success
signal_write_interrupt.c	Success	None	1.057829s	1.133257s	Success
sigpipe.c	Success	None	1.057304s	1.134451s	Success
sigprocmask.c	Success	None	1.055005s	1.122152s	Success

Fail Tests

Summary

Metric	Count
Total Test Cases	4
Number of Successes	4
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

Test Results by Category

Test Case	Status	Error Type	Native Time	Wasm Time	Output
Dylink Tests
dlerror.c	Success	None	0.047678s	0.103580s	Success
Memory Tests
mmap-negative1.c	Success	None	0.135209s	0.115053s	Success
mmap-negative2.c	Success	None	0.124976s	0.122569s	Success
Signal Tests
signal_resethand.c	Success	None	1.055444s	1.122870s	Success

C++ harness

Summary

Metric	Value
Total	1
Success	1
Failures	0
Compile failures	0
Runtime failures	0
Output mismatch	0
Timeouts	0

Cases

Test	Status	Error type	Native time	Wasm time	Output
tests/unit-tests/cpp/sort.cpp	Success		0.530427s	10.053355s	LIBCPP_SORT_OK 1 2 3

github-actions · 2026-05-10T18:48:52Z

End-to-End Test Report

Test Preview

grate harness

Grate Test Report

Metric	Value
Total	14
Success	14
Failures	0
Compile Failures	0
Runtime Failures	0
Timeout Failures	0
Missing Pair Failures	0

Cases

Test	Status	Output
concurrent-request/geteuid_grate.c	Success	STDOUT: [Grate\|geteuid] Registering geteuid handler for cage 2 in grate 1 with fn ptr addr: 3 [Cage \| geteuid] PASS: 1000000 calls returned 10 [Grate\|geteuid] PASS STDERR:
concurrent-request/race-test_grate.c	Success	STDOUT: pass STDERR:
concurrent-request/thread_race_grate.c	Success	STDOUT: [thread_race] Registering handler for cage 2 in grate 1 with fn ptr addr: 3 [thread_race] PASS: 20 threads x 100000 calls returned 10 [thread_race] PASS STDERR:
copy-data-between-cages/cp-stncpy_grate.c	Success	STDOUT: [cage] pathname addr=0xfffb6ff9 [cage] pathname='random' [Grate\|open] intercepts open call: thiscage=1, arg1cage=2 [Grate\|open] copied pathname: random [cage] fd=10 STDERR:
copy-data-between-cages/cpdata_grate.c	Success	STDOUT: [Grate\|open] intercepts open call: thiscage=1, arg1cage=2 [Grate\|open] copied pathname: random [cage] fd=10 STDERR:
interposing-calls/fork-with-newret_grate.c	Success	STDOUT: [Grate\|interpose-fork] Registering fork handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-fork] Handling function ptr: 3 from cage: 1 [Grate\|interpose-fork] In fork_grate 1 handler for cage: 1 [Cage] Forked process with PID: 10 [Grate\|interpose-fork] PASS STDERR:
interposing-calls/interpose-exec_grate.c	Success	STDOUT: [Grate\|interpose-exec] Registering exec handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-exec] Handling function ptr: 3 from cage: 1 [Grate\|interpose-exec] In exec_grate 1 handler for cage: 1 [Grate\|interpose-exec] Handling function ptr: 3 from cage: 1 [Grate\|interpose-exec] In exec_grate 1 handler for cage: 1 Exec successful, argv[1]: --execd [Grate\|interpose-exec] PASS STDERR:
interposing-calls/interpose-exit_grate.c	Success	STDOUT: [Grate\|interpose-exit] Registering exit handler for cage 2 in grate 1 with fn ptr addr: 3 Exiting... [Grate\|interpose-exit] PASS STDERR:
interposing-calls/interpose-fork_grate.c	Success	STDOUT: [Grate\|interpose-fork] Registering fork handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-fork] Handling function ptr: 3 from cage: 1 [Grate\|interpose-fork] In fork_grate 1 handler for cage: 1 [Grate\|interpose-fork] PASS STDERR:
interposing-calls/interpose-mmap_grate.c	Success	STDOUT: [Grate\|interpose-mmap] Registering mmap handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 mmap test: PASS [Grate\|interpose-mmap] PASS STDERR:
interposing-calls/interpose-register_grate.c	Success	STDOUT: [Grate\|interpose-register] Registering register_handler for cage 2 in grate 1 with fn ptr addr: 4 [cage] registering 107. grateid: 2 cageid: 3 [Grate\|interpose-register] Handling function ptr: 4 from cage: 1 [Grate\|interpose-register] In register_grate 1 handler for cage: 1 [Grate\|geteuid] Registering geteuid handler for cage 1 in grate 1 with fn ptr addr: 3 [Grate\|interpose-register] Handling function ptr: 3 from cage: 1 [Grate\|interpose-register] In register_grate 1 handler for cage: 1 [Grate\|interpose-register] PASS STDERR:
multi-register_grate.c	Success	STDOUT: [Grate\|multi-register_grate] Registering geteuid handler for cage 2 in grate 1 with fn ptr addr: 4 [Grate\|multi-register_grate] Registering getuid handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|multi-register_grate] Handling function ptr: 4 from cage: 1 [Grate\|multi-register_grate] In multi-register_grate 1 handler for cage: 1 [Grate\|multi-register_grate] Handling function ptr: 3 from cage: 1 [Grate\|multi-register_grate] In multi-register_grate 1 handler for cage: 1 [Cage \| multi-register] PASS: geteuid=10, getuid=20 [Grate\|multi-register] PASS STDERR:
simple-tests/diff-cage-args_grate.c	Success	STDOUT: [Grate\|diff-cage-args] Handling function ptr: 3 from cage: 1 [Grate\|diff-cage-args] In open_grate 1 handler for cage: 1 Hello world. FD=-1 [Grate\|diff-cage-args] Handling function ptr: 4 from cage: 1 Goodbye world! ret=4321 buf=helloworld [Grate\|diff-cage-args] PASS STDERR:
simple-tests/geteuid_grate.c	Success	STDOUT: [Grate\|geteuid] Registering geteuid handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|geteuid] Handling function ptr: 3 from cage: 1 [Grate\|geteuid] In geteuid_grate 1 handler for cage: 1 [Cage \| geteuid] PASS: geteuid ret = 10 [Grate\|geteuid] PASS STDERR:

static harness

Test Report

Deterministic Tests

Summary

Metric	Count
Total Test Cases	3
Number of Successes	3
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

Test Results by Category

Test Case	Status	Error Type	Native Time	Wasm Time	Output
Static Tests
fork_simple.c	Success	None	0.048428s	4.119976s	Success
thread.c	Success	None	0.042448s	4.099470s	Success
tls_test.c	Success	None	0.051876s	4.139770s	Success

Fail Tests

Summary

Metric	Count
Total Test Cases	0
Number of Successes	0
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

wasm harness

Test Report

Deterministic Tests

Summary

Metric	Count
Total Test Cases	218
Number of Successes	218
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

Test Results by Category

Test Case	Status	Error Type	Native Time	Wasm Time	Output
File Tests
chartests.c	Success	None	0.046157s	0.134991s	Success
chdir_getcwd.c	Success	None	0.044215s	0.099287s	Success
chmod.c	Success	None	0.048092s	0.109556s	Success
clock_gettime_highlevel.c	Success	None	0.108356s	0.141709s	Success
clock_gettime_simple.c	Success	None	0.037819s	0.093122s	Success
cloexec.c	Success	None	0.050219s	0.121963s	Success
close.c	Success	None	0.055536s	0.117949s	Success
creat_access.c	Success	None	0.048009s	0.106364s	Success
doubleclose.c	Success	None	0.040873s	0.087564s	Success
dup.c	Success	None	0.040511s	0.099301s	Success
dup2.c	Success	None	0.044747s	0.102464s	Success
dup3.c	Success	None	0.043885s	0.102196s	Success
dupwrite.c	Success	None	0.048530s	0.101976s	Success
etc_conf.c	Success	None	0.041441s	0.108064s	Success
faccessat.c	Success	None	0.045116s	0.107269s	Success
fchdir.c	Success	None	0.048077s	0.111395s	Success
fchmod.c	Success	None	0.047258s	0.109724s	Success
fchmodat.c	Success	None	0.042926s	0.097772s	Success
fcntl.c	Success	None	0.047604s	0.114275s	Success
fdatasync.c	Success	None	0.048145s	0.101506s	Success
filetest.c	Success	None	0.048382s	0.100507s	Success
filetest1000.c	Success	None	0.056749s	0.113456s	Success
flock.c	Success	None	0.053939s	0.131688s	Success
fstat.c	Success	None	0.047209s	0.111249s	Success
fstatfs.c	Success	None	0.043362s	0.098309s	Success
fsync.c	Success	None	0.048073s	0.096486s	Success
ftruncate.c	Success	None	0.051251s	0.197875s	Success
getcwd.c	Success	None	0.042318s	0.094037s	Success
getcwd_null.c	Success	None	0.045575s	0.104755s	Success
getpgid.c	Success	None	0.041170s	0.087980s	Success
getrandom.c	Success	None	0.046097s	0.110063s	Success
ioctl.c	Success	None	0.049284s	0.109464s	Success
link.c	Success	None	0.049938s	0.141118s	Success
locale_test.c	Success	None	0.060697s	0.299955s	Success
lseek.c	Success	None	0.050076s	0.170904s	Success
lstat.c	Success	None	0.051391s	0.121368s	Success
mkdir_rmdir.c	Success	None	0.046255s	0.104853s	Success
mkfifo_test.c	Success	None	0.057556s	0.140182s	Success
mknod.c	Success	None	0.047309s	0.108081s	Success
nocancel_io.c	Success	None	0.048921s	0.124783s	Success
open.c	Success	None	0.040589s	0.090935s	Success
openat.c	Success	None	0.041931s	0.103458s	Success
path_conversion_safety.c	Success	None	0.049690s	0.122721s	Success
ppoll.c	Success	None	0.049239s	0.108342s	Success
pread_pwrite.c	Success	None	0.044283s	0.103718s	Success
preadv_pwritev.c	Success	None	0.049101s	0.118458s	Success
printf.c	Success	None	0.038212s	0.084811s	Success
prlimit64.c	Success	None	0.039361s	0.089461s	Success
read.c	Success	None	0.046967s	0.115622s	Success
readbytes.c	Success	None	0.042540s	0.092852s	Success
readdir_basic.c	Success	None	0.049936s	0.135187s	Success
readlink.c	Success	None	0.046135s	0.111079s	Success
readlinkat.c	Success	None	0.047412s	0.110924s	Success
readv_writev_test.c	Success	None	0.050447s	0.118421s	Success
rename.c	Success	None	0.048930s	0.108839s	Success
renameat.c	Success	None	0.048987s	0.117365s	Success
sc-writev.c	Success	None	0.044335s	0.105527s	Success
stat.c	Success	None	0.049543s	0.108176s	Success
statfs.c	Success	None	0.040757s	0.093453s	Success
symlink.c	Success	None	0.048532s	0.133389s	Success
sync_file_range.c	Success	None	0.046398s	0.099822s	Success
timespec_time_t_compat.c	Success	None	0.044032s	0.093478s	Success
truncate.c	Success	None	0.051143s	0.126084s	Success
unlink.c	Success	None	0.048350s	0.136489s	Success
unlinkat.c	Success	None	0.047976s	0.115610s	Success
utimensat.c	Success	None	0.044872s	0.122765s	Success
write.c	Success	None	0.039675s	0.084706s	Success
writeloop.c	Success	None	0.051380s	0.106054s	Success
writepartial.c	Success	None	0.046614s	0.095673s	Success
writev.c	Success	None	0.046939s	0.107849s	Success
Math Tests
math_link_smoke.c	Success	None	0.049233s	0.096702s	Success
math_tests.c	Success	None	0.054200s	0.119352s	Success
printf_float.c	Success	None	0.050958s	0.115210s	Success
Memory Tests
brk.c	Success	None	0.046462s	0.100321s	Success
fork_large_memory.c	Success	None	0.073851s	0.337551s	Success
malloc.c	Success	None	0.043658s	0.088727s	Success
malloc_large.c	Success	None	0.044556s	0.088533s	Success
memcpy.c	Success	None	0.042319s	0.089022s	Success
memory_error_test.c	Success	None	0.048172s	0.118264s	Success
mmap.c	Success	None	0.038478s	0.089972s	Success
mmap_aligned.c	Success	None	0.040696s	0.103520s	Success
mmap_complicated.c	Success	None	0.046724s	0.113208s	Success
mmap_file.c	Success	None	0.049101s	0.103954s	Success
mmap_shared.c	Success	None	0.045058s	0.106158s	Success
mmaptest.c	Success	None	0.042518s	0.094764s	Success
mprotect.c	Success	None	0.042826s	0.090329s	Success
mprotect_boundary.c	Success	None	0.041560s	0.101366s	Success
mprotect_end_region.c	Success	None	0.042135s	0.094036s	Success
mprotect_middle_region.c	Success	None	0.039978s	0.099718s	Success
mprotect_multiple_times.c	Success	None	0.039832s	0.094844s	Success
mprotect_same_value.c	Success	None	0.039742s	0.092873s	Success
mprotect_spanning_regions.c	Success	None	0.040651s	0.111009s	Success
munmap_adjacent_shm.c	Success	None	0.042250s	0.107811s	Success
sbrk.c	Success	None	0.041553s	0.091067s	Success
segfault.c	Success	None	0.046883s	0.121045s	Success
shm.c	Success	None	0.045602s	0.111284s	Success
shmtest.c	Success	None	0.040888s	0.095743s	Success
thread_malloc_sequential.c	Success	None	0.047399s	0.136248s	Success
vtable.c	Success	None	0.050695s	0.106656s	Success
Networking Tests
accept4.c	Success	None	0.050688s	0.122425s	Success
dns_resolve_test.c	Success	None	0.045269s	0.102600s	Success
dnstest.c	Success	None	0.045748s	0.100439s	Success
epoll_badfd.c	Success	None	0.040712s	0.090976s	Success
epoll_edge_triggered.c	Success	None	0.204350s	0.357296s	Success
epollcreate1.c	Success	None	0.047448s	0.110592s	Success
error_handling_net.c	Success	None	0.056744s	0.176262s	Success
getaddrinfo_test.c	Success	None	0.049850s	0.138218s	Success
getaddrinfo_unspec.c	Success	None	0.050262s	0.150241s	Success
gethostname.c	Success	None	0.039975s	0.086842s	Success
getifaddrs.c	Success	None	0.050126s	0.108581s	Success
getsockname.c	Success	None	0.052137s	0.108108s	Success
getsockopt.c	Success	None	0.051600s	0.138761s	Success
ipv6_basic.c	Success	None	0.051442s	0.136989s	Success
makepipe.c	Success	None	0.039547s	0.089112s	Success
nonblocking_eagain.c	Success	None	0.051431s	0.145594s	Success
pipe.c	Success	None	0.048635s	0.112848s	Success
pipe2.c	Success	None	0.048339s	0.104312s	Success
pipeinput.c	Success	None	0.049952s	0.128760s	Success
pipeinput2.c	Success	None	0.049569s	0.129450s	Success
pipeonestring.c	Success	None	0.050898s	0.124790s	Success
pipepong.c	Success	None	0.048463s	0.126812s	Success
pipewrite.c	Success	None	0.043203s	0.102217s	Success
poll.c	Success	None	0.049011s	0.099598s	Success
recvfrom-sendto.c	Success	None	0.048139s	0.111556s	Success
sendmsg_recvmsg_test.c	Success	None	0.047975s	0.112696s	Success
serverclient.c	Success	None	0.047236s	0.118703s	Success
shutdown.c	Success	None	0.048802s	0.111751s	Success
shutdown_fork.c	Success	None	0.050273s	0.117977s	Success
simple-select.c	Success	None	0.048499s	0.123660s	Success
simple_epoll.c	Success	None	0.047162s	0.107224s	Success
socket.c	Success	None	0.046048s	0.098855s	Success
socket_cloexec.c	Success	None	0.045552s	0.096218s	Success
socket_options_advanced.c	Success	None	0.054622s	0.155561s	Success
socketepoll.c	Success	None	0.045617s	0.099906s	Success
socketpair.c	Success	None	0.045285s	0.108555s	Success
socketselect.c	Success	None	0.045815s	0.106187s	Success
udp_send_recv.c	Success	None	0.153401s	0.245601s	Success
uds-getsockname.c	Success	None	0.046809s	0.099234s	Success
uds-nb-select.c	Success	None	2.055401s	2.158529s	Success
uds-serverclient.c	Success	None	0.051340s	0.132078s	Success
uds-socketselect.c	Success	None	0.048475s	0.109493s	Success
uds_listen_poll.c	Success	None	1.053185s	1.139659s	Success
writev_socket.c	Success	None	0.050694s	0.137639s	Success
Process Tests
barrier_test.c	Success	None	0.047707s	0.105084s	Success
chain_thread.c	Success	None	1.047795s	1.112805s	Success
ctor_syscall_test.c	Success	None	0.037240s	0.087277s	Success
cxa_atexit_test.c	Success	None	0.043219s	0.092536s	Success
exec_non_utf8.c	Success	None	0.046804s	0.100864s	Success
execve_shebang.c	Success	None	0.046926s	0.098956s	Success
exit.c	Success	None	0.045351s	0.093526s	Success
exit_failure.c	Success	None	0.046088s	0.103959s	Success
exit_group_thread.c	Success	None	0.049573s	0.113565s	Success
exit_status_first_wins.c	Success	None	0.049906s	0.118100s	Success
flockfile_test.c	Success	None	0.046717s	0.115202s	Success
fork2malloc.c	Success	None	0.047446s	0.109062s	Success
fork_select.c	Success	None	0.045939s	0.114318s	Success
fork_simple.c	Success	None	0.045322s	0.104180s	Success
fork_syscall.c	Success	None	0.050216s	0.304115s	Success
fork_tls_ctype.c	Success	None	0.049776s	0.128731s	Success
forkandopen.c	Success	None	0.048547s	0.119172s	Success
forkdup.c	Success	None	0.051083s	0.110512s	Success
forkexecuid.c	Success	None	0.045282s	0.120925s	Success
forkexecv-arg.c	Success	None	0.048812s	0.109194s	Success
forkexecv.c	Success	None	0.043535s	0.105861s	Success
forkfiles.c	Success	None	0.050080s	0.116721s	Success
forkmalloc.c	Success	None	0.047984s	0.104619s	Success
forknodup.c	Success	None	0.047987s	0.115481s	Success
function-ptr.c	Success	None	0.041346s	0.091558s	Success
getegid_syscall.c	Success	None	0.047103s	0.241935s	Success
getgid_syscall.c	Success	None	0.048338s	0.252631s	Success
getpid.c	Success	None	0.040018s	0.086333s	Success
getpid_syscall.c	Success	None	0.048272s	0.255055s	Success
getppid.c	Success	None	0.047619s	0.105561s	Success
getppid_syscall.c	Success	None	0.050318s	0.215687s	Success
getuid.c	Success	None	0.047281s	0.096941s	Success
getuid_syscall.c	Success	None	0.045631s	0.156385s	Success
hello-arg.c	Success	None	0.040280s	0.095346s	Success
hello.c	Success	None	0.038620s	0.086235s	Success
longjmp.c	Success	None	0.040581s	0.096755s	Success
mutex.c	Success	None	2.048736s	2.106598s	Success
printf_deadlock_smoke.c	Success	None	0.058958s	0.143333s	Success
printf_thread_test.c	Success	None	0.046205s	0.114197s	Success
sem_forks.c	Success	None	0.049830s	0.124484s	Success
setsid.c	Success	None	0.039718s	0.086666s	Success
template.c	Success	None	0.046718s	0.127771s	Success
test_exec_nofork.c	Success	None	0.044899s	0.104355s	Success
test_unlink_open_file.c	Success	None	0.041643s	0.089018s	Success
thread-guard.c	Success	None	0.044639s	0.108677s	Success
thread-test.c	Success	None	0.042876s	0.095777s	Success
thread.c	Success	None	0.041885s	0.095941s	Success
thread_cageid_race.c	Success	None	0.042526s	0.142206s	Success
tls_test.c	Success	None	0.044697s	0.111428s	Success
uname.c	Success	None	0.041950s	0.088199s	Success
wait.c	Success	None	0.043452s	0.111905s	Success
waitpid_anychild.c	Success	None	0.047064s	0.106468s	Success
waitpid_syscall.c	Success	None	1.047050s	1.149508s	Success
waitpid_wnohang.c	Success	None	0.047126s	0.108972s	Success
Signal Tests
alarm.c	Success	None	7.045634s	7.131281s	Success
eintr_fork_signal.c	Success	None	1.049022s	1.120479s	Success
kill.c	Success	None	1.048689s	1.110792s	Success
setitimer.c	Success	None	7.047714s	7.134613s	Success
sigalrm.c	Success	None	2.049808s	2.118040s	Success
sigaltstack.c	Success	None	0.049550s	0.112013s	Success
sigchld.c	Success	None	1.047896s	1.112065s	Success
signal-fork.c	Success	None	4.048354s	4.110503s	Success
signal-simple.c	Success	None	0.048174s	0.100652s	Success
signal_SIGCHLD.c	Success	None	0.045346s	0.112195s	Success
signal_fork.c	Success	None	0.048405s	0.117027s	Success
signal_int_ignored.c	Success	None	2.046772s	2.114895s	Success
signal_kill_cleanup.c	Success	None	1.045782s	1.102763s	Success
signal_procmask.c	Success	None	0.041875s	0.098362s	Success
signal_read_interrupt.c	Success	None	0.551801s	0.617830s	Success
signal_recursive.c	Success	None	0.044729s	0.108373s	Success
signal_sa_mask.c	Success	None	0.041520s	0.095676s	Success
signal_select_interrupt.c	Success	None	0.553837s	0.616914s	Success
signal_write_interrupt.c	Success	None	1.050237s	1.122390s	Success
sigpipe.c	Success	None	1.049111s	1.118353s	Success
sigprocmask.c	Success	None	1.049587s	1.104336s	Success

Fail Tests

Summary

Metric	Count
Total Test Cases	4
Number of Successes	4
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

Test Results by Category

Test Case	Status	Error Type	Native Time	Wasm Time	Output
Dylink Tests
dlerror.c	Success	None	0.039016s	0.088534s	Success
Memory Tests
mmap-negative1.c	Success	None	0.132704s	0.094608s	Success
mmap-negative2.c	Success	None	0.098220s	0.114146s	Success
Signal Tests
signal_resethand.c	Success	None	1.046207s	1.105164s	Success

C++ harness

Summary

Metric	Value
Total	1
Success	1
Failures	0
Compile failures	0
Runtime failures	0
Output mismatch	0
Timeouts	0

Cases

Test	Status	Error type	Native time	Wasm time	Output
tests/unit-tests/cpp/sort.cpp	Success		0.525322s	9.394692s	LIBCPP_SORT_OK 1 2 3

qianxichen233 · 2026-05-11T03:51:01Z

what’s causing these addresses to be unaligned in some cases? Is there a better way to fix the root cause, for example by ensuring the addresses are properly aligned, rather than allowing unaligned writes?

I don’t think we should blindly bypass debug-build errors through special handling. In general, it’s better to respect the debug check and fix the underlying issue, unless doing so would introduce significant overhead

DanielZ224 · 2026-05-11T16:36:46Z

Thanks for the comment. I rechecked the root cause instead of relying on unaligned u64 accesses.

The asyncify unwind header is a 32-bit layout: buf[0] stores the current unwind position and buf[4] stores the end pointer. The previous u64 writes were not just an alignment issue; they also wrote across both 32-bit fields and could corrupt the asyncify bounds state. I updated these sites to write/read the asyncify metadata as u32 fields.

For jmp_buf, the guest-provided address can be 4-byte aligned rather than 8-byte aligned in this environment, so I kept unaligned access only for the stored 64-bit hash there. The asyncify metadata itself is no longer handled as unaligned u64 data.

I also verified this with a debug build and reran the two grate regression tests:

concurrent-request/race-test_grate.c
concurrent-request/thread_race_grate.c

Both now pass.

github-actions · 2026-05-11T16:50:59Z

End-to-End Test Report

Test Preview

grate harness

Grate Test Report

Metric	Value
Total	14
Success	14
Failures	0
Compile Failures	0
Runtime Failures	0
Timeout Failures	0
Missing Pair Failures	0

Cases

Test	Status	Output
concurrent-request/geteuid_grate.c	Success	STDOUT: [Grate\|geteuid] Registering geteuid handler for cage 2 in grate 1 with fn ptr addr: 3 [Cage \| geteuid] PASS: 1000000 calls returned 10 [Grate\|geteuid] PASS STDERR:
concurrent-request/race-test_grate.c	Success	STDOUT: pass STDERR:
concurrent-request/thread_race_grate.c	Success	STDOUT: [thread_race] Registering handler for cage 2 in grate 1 with fn ptr addr: 3 [thread_race] PASS: 20 threads x 100000 calls returned 10 [thread_race] PASS STDERR:
copy-data-between-cages/cp-stncpy_grate.c	Success	STDOUT: [cage] pathname addr=0xfffb6ff9 [cage] pathname='random' [Grate\|open] intercepts open call: thiscage=1, arg1cage=2 [Grate\|open] copied pathname: random [cage] fd=10 STDERR:
copy-data-between-cages/cpdata_grate.c	Success	STDOUT: [Grate\|open] intercepts open call: thiscage=1, arg1cage=2 [Grate\|open] copied pathname: random [cage] fd=10 STDERR:
interposing-calls/fork-with-newret_grate.c	Success	STDOUT: [Grate\|interpose-fork] Registering fork handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-fork] Handling function ptr: 3 from cage: 1 [Grate\|interpose-fork] In fork_grate 1 handler for cage: 1 [Cage] Forked process with PID: 10 [Grate\|interpose-fork] PASS STDERR:
interposing-calls/interpose-exec_grate.c	Success	STDOUT: [Grate\|interpose-exec] Registering exec handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-exec] Handling function ptr: 3 from cage: 1 [Grate\|interpose-exec] In exec_grate 1 handler for cage: 1 [Grate\|interpose-exec] Handling function ptr: 3 from cage: 1 [Grate\|interpose-exec] In exec_grate 1 handler for cage: 1 Exec successful, argv[1]: --execd [Grate\|interpose-exec] PASS STDERR:
interposing-calls/interpose-exit_grate.c	Success	STDOUT: [Grate\|interpose-exit] Registering exit handler for cage 2 in grate 1 with fn ptr addr: 3 Exiting... [Grate\|interpose-exit] PASS STDERR:
interposing-calls/interpose-fork_grate.c	Success	STDOUT: [Grate\|interpose-fork] Registering fork handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-fork] Handling function ptr: 3 from cage: 1 [Grate\|interpose-fork] In fork_grate 1 handler for cage: 1 [Grate\|interpose-fork] PASS STDERR:
interposing-calls/interpose-mmap_grate.c	Success	STDOUT: [Grate\|interpose-mmap] Registering mmap handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 mmap test: PASS [Grate\|interpose-mmap] PASS STDERR:
interposing-calls/interpose-register_grate.c	Success	STDOUT: [Grate\|interpose-register] Registering register_handler for cage 2 in grate 1 with fn ptr addr: 4 [cage] registering 107. grateid: 2 cageid: 3 [Grate\|interpose-register] Handling function ptr: 4 from cage: 1 [Grate\|interpose-register] In register_grate 1 handler for cage: 1 [Grate\|geteuid] Registering geteuid handler for cage 1 in grate 1 with fn ptr addr: 3 [Grate\|interpose-register] Handling function ptr: 3 from cage: 1 [Grate\|interpose-register] In register_grate 1 handler for cage: 1 [Grate\|interpose-register] PASS STDERR:
multi-register_grate.c	Success	STDOUT: [Grate\|multi-register_grate] Registering geteuid handler for cage 2 in grate 1 with fn ptr addr: 4 [Grate\|multi-register_grate] Registering getuid handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|multi-register_grate] Handling function ptr: 4 from cage: 1 [Grate\|multi-register_grate] In multi-register_grate 1 handler for cage: 1 [Grate\|multi-register_grate] Handling function ptr: 3 from cage: 1 [Grate\|multi-register_grate] In multi-register_grate 1 handler for cage: 1 [Cage \| multi-register] PASS: geteuid=10, getuid=20 [Grate\|multi-register] PASS STDERR:
simple-tests/diff-cage-args_grate.c	Success	STDOUT: [Grate\|diff-cage-args] Handling function ptr: 3 from cage: 1 [Grate\|diff-cage-args] In open_grate 1 handler for cage: 1 Hello world. FD=-1 [Grate\|diff-cage-args] Handling function ptr: 4 from cage: 1 Goodbye world! ret=4321 buf=helloworld [Grate\|diff-cage-args] PASS STDERR:
simple-tests/geteuid_grate.c	Success	STDOUT: [Grate\|geteuid] Registering geteuid handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|geteuid] Handling function ptr: 3 from cage: 1 [Grate\|geteuid] In geteuid_grate 1 handler for cage: 1 [Cage \| geteuid] PASS: geteuid ret = 10 [Grate\|geteuid] PASS STDERR:

static harness

Test Report

Deterministic Tests

Summary

Metric	Count
Total Test Cases	3
Number of Successes	3
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

Test Results by Category

Test Case	Status	Error Type	Native Time	Wasm Time	Output
Static Tests
fork_simple.c	Success	None	0.052193s	4.424611s	Success
thread.c	Success	None	0.045965s	4.458759s	Success
tls_test.c	Success	None	0.057825s	4.441271s	Success

Fail Tests

Summary

Metric	Count
Total Test Cases	0
Number of Successes	0
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

wasm harness

Test Report

Deterministic Tests

Summary

Metric	Count
Total Test Cases	218
Number of Successes	218
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

Test Results by Category

Test Case	Status	Error Type	Native Time	Wasm Time	Output
File Tests
chartests.c	Success	None	0.046806s	0.139012s	Success
chdir_getcwd.c	Success	None	0.049046s	0.110365s	Success
chmod.c	Success	None	0.053342s	0.121012s	Success
clock_gettime_highlevel.c	Success	None	0.121476s	0.155795s	Success
clock_gettime_simple.c	Success	None	0.045086s	0.105123s	Success
cloexec.c	Success	None	0.052258s	0.126211s	Success
close.c	Success	None	0.058798s	0.128123s	Success
creat_access.c	Success	None	0.051477s	0.109019s	Success
doubleclose.c	Success	None	0.041615s	0.091188s	Success
dup.c	Success	None	0.043224s	0.109107s	Success
dup2.c	Success	None	0.049085s	0.108027s	Success
dup3.c	Success	None	0.047988s	0.108307s	Success
dupwrite.c	Success	None	0.049098s	0.103773s	Success
etc_conf.c	Success	None	0.044366s	0.109746s	Success
faccessat.c	Success	None	0.046783s	0.111164s	Success
fchdir.c	Success	None	0.053078s	0.121397s	Success
fchmod.c	Success	None	0.052528s	0.122065s	Success
fchmodat.c	Success	None	0.045511s	0.107335s	Success
fcntl.c	Success	None	0.049448s	0.122700s	Success
fdatasync.c	Success	None	0.049238s	0.103929s	Success
filetest.c	Success	None	0.048950s	0.106804s	Success
filetest1000.c	Success	None	0.059556s	0.116461s	Success
flock.c	Success	None	0.057012s	0.141089s	Success
fstat.c	Success	None	0.051685s	0.119574s	Success
fstatfs.c	Success	None	0.045349s	0.102292s	Success
fsync.c	Success	None	0.048980s	0.105026s	Success
ftruncate.c	Success	None	0.053699s	0.205983s	Success
getcwd.c	Success	None	0.046848s	0.100749s	Success
getcwd_null.c	Success	None	0.050907s	0.113613s	Success
getpgid.c	Success	None	0.042653s	0.094027s	Success
getrandom.c	Success	None	0.049851s	0.121293s	Success
ioctl.c	Success	None	0.053207s	0.114727s	Success
link.c	Success	None	0.052245s	0.147461s	Success
locale_test.c	Success	None	0.064739s	0.311265s	Success
lseek.c	Success	None	0.054358s	0.188137s	Success
lstat.c	Success	None	0.053532s	0.126156s	Success
mkdir_rmdir.c	Success	None	0.050494s	0.109811s	Success
mkfifo_test.c	Success	None	0.058121s	0.150513s	Success
mknod.c	Success	None	0.049012s	0.118779s	Success
nocancel_io.c	Success	None	0.053541s	0.134040s	Success
open.c	Success	None	0.043049s	0.094818s	Success
openat.c	Success	None	0.045416s	0.105910s	Success
path_conversion_safety.c	Success	None	0.053981s	0.130204s	Success
ppoll.c	Success	None	0.056876s	0.118910s	Success
pread_pwrite.c	Success	None	0.047979s	0.115377s	Success
preadv_pwritev.c	Success	None	0.053011s	0.127953s	Success
printf.c	Success	None	0.041940s	0.092657s	Success
prlimit64.c	Success	None	0.042919s	0.097895s	Success
read.c	Success	None	0.051193s	0.119648s	Success
readbytes.c	Success	None	0.046946s	0.103238s	Success
readdir_basic.c	Success	None	0.054278s	0.141668s	Success
readlink.c	Success	None	0.049089s	0.112737s	Success
readlinkat.c	Success	None	0.051740s	0.117788s	Success
readv_writev_test.c	Success	None	0.053049s	0.121089s	Success
rename.c	Success	None	0.051580s	0.110185s	Success
renameat.c	Success	None	0.051422s	0.123800s	Success
sc-writev.c	Success	None	0.047110s	0.106245s	Success
stat.c	Success	None	0.050682s	0.117683s	Success
statfs.c	Success	None	0.043010s	0.097602s	Success
symlink.c	Success	None	0.051715s	0.138862s	Success
sync_file_range.c	Success	None	0.047663s	0.104182s	Success
timespec_time_t_compat.c	Success	None	0.049444s	0.099823s	Success
truncate.c	Success	None	0.052717s	0.132001s	Success
unlink.c	Success	None	0.052752s	0.146091s	Success
unlinkat.c	Success	None	0.051017s	0.127218s	Success
utimensat.c	Success	None	0.049930s	0.126002s	Success
write.c	Success	None	0.043617s	0.093934s	Success
writeloop.c	Success	None	0.053321s	0.111123s	Success
writepartial.c	Success	None	0.053683s	0.102355s	Success
writev.c	Success	None	0.051261s	0.114801s	Success
Math Tests
math_link_smoke.c	Success	None	0.053552s	0.100645s	Success
math_tests.c	Success	None	0.059759s	0.128659s	Success
printf_float.c	Success	None	0.053134s	0.122845s	Success
Memory Tests
brk.c	Success	None	0.047777s	0.103240s	Success
fork_large_memory.c	Success	None	0.081875s	0.365558s	Success
malloc.c	Success	None	0.046231s	0.095502s	Success
malloc_large.c	Success	None	0.048735s	0.094960s	Success
memcpy.c	Success	None	0.044595s	0.096612s	Success
memory_error_test.c	Success	None	0.052909s	0.128770s	Success
mmap.c	Success	None	0.041346s	0.094390s	Success
mmap_aligned.c	Success	None	0.045400s	0.113454s	Success
mmap_complicated.c	Success	None	0.049855s	0.121399s	Success
mmap_file.c	Success	None	0.050223s	0.109389s	Success
mmap_shared.c	Success	None	0.049636s	0.115741s	Success
mmaptest.c	Success	None	0.045660s	0.100113s	Success
mprotect.c	Success	None	0.044635s	0.097928s	Success
mprotect_boundary.c	Success	None	0.045635s	0.108303s	Success
mprotect_end_region.c	Success	None	0.046081s	0.101524s	Success
mprotect_middle_region.c	Success	None	0.042829s	0.102485s	Success
mprotect_multiple_times.c	Success	None	0.043595s	0.104824s	Success
mprotect_same_value.c	Success	None	0.042633s	0.098910s	Success
mprotect_spanning_regions.c	Success	None	0.045563s	0.119983s	Success
munmap_adjacent_shm.c	Success	None	0.046739s	0.117118s	Success
sbrk.c	Success	None	0.046044s	0.099176s	Success
segfault.c	Success	None	0.051235s	0.132336s	Success
shm.c	Success	None	0.049557s	0.120621s	Success
shmtest.c	Success	None	0.044633s	0.105657s	Success
thread_malloc_sequential.c	Success	None	0.051354s	0.148244s	Success
vtable.c	Success	None	0.054530s	0.114664s	Success
Networking Tests
accept4.c	Success	None	0.056662s	0.126936s	Success
dns_resolve_test.c	Success	None	0.048690s	0.108496s	Success
dnstest.c	Success	None	0.051160s	0.111740s	Success
epoll_badfd.c	Success	None	0.046276s	0.098609s	Success
epoll_edge_triggered.c	Success	None	0.206870s	0.372650s	Success
epollcreate1.c	Success	None	0.052136s	0.121858s	Success
error_handling_net.c	Success	None	0.059708s	0.188118s	Success
getaddrinfo_test.c	Success	None	0.055019s	0.147109s	Success
getaddrinfo_unspec.c	Success	None	0.052560s	0.122495s	Success
gethostname.c	Success	None	0.046257s	0.097569s	Success
getifaddrs.c	Success	None	0.051782s	0.110074s	Success
getsockname.c	Success	None	0.055498s	0.111789s	Success
getsockopt.c	Success	None	0.055951s	0.151301s	Success
ipv6_basic.c	Success	None	0.055102s	0.145368s	Success
makepipe.c	Success	None	0.043772s	0.093929s	Success
nonblocking_eagain.c	Success	None	0.054540s	0.155088s	Success
pipe.c	Success	None	0.053015s	0.122165s	Success
pipe2.c	Success	None	0.052434s	0.112431s	Success
pipeinput.c	Success	None	0.053585s	0.135048s	Success
pipeinput2.c	Success	None	0.054968s	0.142500s	Success
pipeonestring.c	Success	None	0.053282s	0.135477s	Success
pipepong.c	Success	None	0.051622s	0.138737s	Success
pipewrite.c	Success	None	0.046083s	0.106745s	Success
poll.c	Success	None	0.050207s	0.104904s	Success
recvfrom-sendto.c	Success	None	0.053274s	0.120848s	Success
sendmsg_recvmsg_test.c	Success	None	0.054970s	0.123345s	Success
serverclient.c	Success	None	0.050811s	0.123415s	Success
shutdown.c	Success	None	0.053819s	0.122246s	Success
shutdown_fork.c	Success	None	0.052492s	0.124245s	Success
simple-select.c	Success	None	0.053897s	0.135091s	Success
simple_epoll.c	Success	None	0.051479s	0.116269s	Success
socket.c	Success	None	0.049687s	0.109700s	Success
socket_cloexec.c	Success	None	0.049124s	0.103117s	Success
socket_options_advanced.c	Success	None	0.056603s	0.166001s	Success
socketepoll.c	Success	None	0.050201s	0.111454s	Success
socketpair.c	Success	None	0.050379s	0.118171s	Success
socketselect.c	Success	None	0.049190s	0.111827s	Success
udp_send_recv.c	Success	None	0.157837s	0.260109s	Success
uds-getsockname.c	Success	None	0.050167s	0.107374s	Success
uds-nb-select.c	Success	None	2.062840s	2.171242s	Success
uds-serverclient.c	Success	None	0.053779s	0.140016s	Success
uds-socketselect.c	Success	None	0.052048s	0.121321s	Success
uds_listen_poll.c	Success	None	1.058240s	1.151904s	Success
writev_socket.c	Success	None	0.053569s	0.147712s	Success
Process Tests
barrier_test.c	Success	None	0.049041s	0.113317s	Success
chain_thread.c	Success	None	1.051542s	1.120416s	Success
ctor_syscall_test.c	Success	None	0.042507s	0.096969s	Success
cxa_atexit_test.c	Success	None	0.047362s	0.105020s	Success
exec_non_utf8.c	Success	None	0.049377s	0.105071s	Success
execve_shebang.c	Success	None	0.052047s	0.105492s	Success
exit.c	Success	None	0.048937s	0.099869s	Success
exit_failure.c	Success	None	0.051040s	0.112405s	Success
exit_group_thread.c	Success	None	0.052644s	0.124002s	Success
exit_status_first_wins.c	Success	None	0.053134s	0.124733s	Success
flockfile_test.c	Success	None	0.051386s	0.124355s	Success
fork2malloc.c	Success	None	0.051789s	0.116709s	Success
fork_select.c	Success	None	0.049222s	0.123887s	Success
fork_simple.c	Success	None	0.049141s	0.111557s	Success
fork_syscall.c	Success	None	0.054034s	0.327010s	Success
fork_tls_ctype.c	Success	None	0.052848s	0.133754s	Success
forkandopen.c	Success	None	0.051880s	0.128052s	Success
forkdup.c	Success	None	0.057342s	0.123901s	Success
forkexecuid.c	Success	None	0.048619s	0.127420s	Success
forkexecv-arg.c	Success	None	0.049636s	0.119117s	Success
forkexecv.c	Success	None	0.048342s	0.113280s	Success
forkfiles.c	Success	None	0.051104s	0.121490s	Success
forkmalloc.c	Success	None	0.050677s	0.111754s	Success
forknodup.c	Success	None	0.051868s	0.125026s	Success
function-ptr.c	Success	None	0.047218s	0.095714s	Success
getegid_syscall.c	Success	None	0.052076s	0.262393s	Success
getgid_syscall.c	Success	None	0.053632s	0.286301s	Success
getpid.c	Success	None	0.045241s	0.095298s	Success
getpid_syscall.c	Success	None	0.054377s	0.273998s	Success
getppid.c	Success	None	0.050841s	0.112497s	Success
getppid_syscall.c	Success	None	0.053008s	0.232356s	Success
getuid.c	Success	None	0.050605s	0.104774s	Success
getuid_syscall.c	Success	None	0.049516s	0.168109s	Success
hello-arg.c	Success	None	0.041087s	0.096100s	Success
hello.c	Success	None	0.040740s	0.090137s	Success
longjmp.c	Success	None	0.041645s	0.098645s	Success
mutex.c	Success	None	2.053600s	2.116292s	Success
printf_deadlock_smoke.c	Success	None	0.062186s	0.148669s	Success
printf_thread_test.c	Success	None	0.051246s	0.121588s	Success
sem_forks.c	Success	None	0.052723s	0.137910s	Success
setsid.c	Success	None	0.043836s	0.096112s	Success
template.c	Success	None	0.050958s	0.138539s	Success
test_exec_nofork.c	Success	None	0.051441s	0.115082s	Success
test_unlink_open_file.c	Success	None	0.046191s	0.098974s	Success
thread-guard.c	Success	None	0.048919s	0.112299s	Success
thread-test.c	Success	None	0.045799s	0.102076s	Success
thread.c	Success	None	0.045229s	0.105404s	Success
thread_cageid_race.c	Success	None	0.048207s	0.158176s	Success
tls_test.c	Success	None	0.048747s	0.124556s	Success
uname.c	Success	None	0.044904s	0.096391s	Success
wait.c	Success	None	0.048805s	0.121849s	Success
waitpid_anychild.c	Success	None	0.050866s	0.118135s	Success
waitpid_syscall.c	Success	None	1.049783s	1.162383s	Success
waitpid_wnohang.c	Success	None	0.051434s	0.119463s	Success
Signal Tests
alarm.c	Success	None	7.051150s	7.133888s	Success
eintr_fork_signal.c	Success	None	1.052202s	1.133955s	Success
kill.c	Success	None	1.051687s	1.118723s	Success
setitimer.c	Success	None	7.050914s	7.146046s	Success
sigalrm.c	Success	None	2.051286s	2.123409s	Success
sigaltstack.c	Success	None	0.052482s	0.119632s	Success
sigchld.c	Success	None	1.054552s	1.120967s	Success
signal-fork.c	Success	None	4.053450s	4.117796s	Success
signal-simple.c	Success	None	0.051677s	0.109021s	Success
signal_SIGCHLD.c	Success	None	0.050899s	0.124184s	Success
signal_fork.c	Success	None	0.047455s	0.123073s	Success
signal_int_ignored.c	Success	None	2.051885s	2.118862s	Success
signal_kill_cleanup.c	Success	None	1.049322s	1.114392s	Success
signal_procmask.c	Success	None	0.046049s	0.107627s	Success
signal_read_interrupt.c	Success	None	0.556878s	0.627503s	Success
signal_recursive.c	Success	None	0.045985s	0.112156s	Success
signal_sa_mask.c	Success	None	0.047397s	0.108098s	Success
signal_select_interrupt.c	Success	None	0.556035s	0.628579s	Success
signal_write_interrupt.c	Success	None	1.053543s	1.130390s	Success
sigpipe.c	Success	None	1.052788s	1.125721s	Success
sigprocmask.c	Success	None	1.051641s	1.115448s	Success

Fail Tests

Summary

Metric	Count
Total Test Cases	4
Number of Successes	4
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

Test Results by Category

Test Case	Status	Error Type	Native Time	Wasm Time	Output
Dylink Tests
dlerror.c	Success	None	0.041481s	0.094452s	Success
Memory Tests
mmap-negative1.c	Success	None	0.129958s	0.115174s	Success
mmap-negative2.c	Success	None	0.116337s	0.114117s	Success
Signal Tests
signal_resethand.c	Success	None	1.050416s	1.115268s	Success

C++ harness

Summary

Metric	Value
Total	1
Success	1
Failures	0
Compile failures	0
Runtime failures	0
Output mismatch	0
Timeouts	0

Cases

Test	Status	Error type	Native time	Wasm time	Output
tests/unit-tests/cpp/sort.cpp	Success		0.464554s	10.172216s	LIBCPP_SORT_OK 1 2 3

qianxichen233 · 2026-05-25T03:27:51Z

Thanks for the comment. I rechecked the root cause instead of relying on unaligned u64 accesses.

The asyncify unwind header is a 32-bit layout: buf[0] stores the current unwind position and buf[4] stores the end pointer. The previous u64 writes were not just an alignment issue; they also wrote across both 32-bit fields and could corrupt the asyncify bounds state. I updated these sites to write/read the asyncify metadata as u32 fields.

For jmp_buf, the guest-provided address can be 4-byte aligned rather than 8-byte aligned in this environment, so I kept unaligned access only for the stored 64-bit hash there. The asyncify metadata itself is no longer handled as unaligned u64 data.

I also verified this with a debug build and reran the two grate regression tests:

concurrent-request/race-test_grate.c

concurrent-request/thread_race_grate.c

Both now pass.

The issue with asyncify buf size was already fixed before, it's also not reflected in your changed files as well. In your changed files, you are trying to replace all the write with write_unaligned. write_unaligned is only required when the address to write is unaligned. The justification needs to be mentioned here is why the address to be written (i.e. unwind_data_start_sys) is an unaligned address. FYI: unwind_data_start_sys is usually the start address of stack, which is not an user assigned address.

DanielZ224 · 2026-05-25T18:49:52Z

Updated the fix to avoid using unaligned access for the Asyncify metadata path. These metadata addresses are expected to be aligned, so I changed them back to regular aligned u32 loads/stores instead of bypassing the debug check with read_unaligned/write_unaligned.

I kept the separate jmp_buf hash handling as unaligned access because the guest-side jmp_buf address can be unaligned in practice. I also verified this with a debug lind-boot build and reran the original concurrent-request/race-test_grate.c and concurrent-request/thread_race_grate.c tests; both passed.

github-actions · 2026-05-25T19:06:45Z

End-to-End Test Report

Test Preview

grate harness

Grate Test Report

Metric	Value
Total	15
Success	15
Failures	0
Compile Failures	0
Runtime Failures	0
Timeout Failures	0
Missing Pair Failures	0

Cases

Test	Status	Output
concurrent-request/geteuid_grate.c	Success	STDOUT: [Grate\|geteuid] Registering geteuid handler for cage 2 in grate 1 with fn ptr addr: 3 [Cage \| geteuid] PASS: 1000000 calls returned 10 [Grate\|geteuid] PASS STDERR:
concurrent-request/race-test_grate.c	Success	STDOUT: pass STDERR:
concurrent-request/thread_race_grate.c	Success	STDOUT: [thread_race] Registering handler for cage 2 in grate 1 with fn ptr addr: 3 [thread_race] PASS: 20 threads x 100000 calls returned 10 [thread_race] PASS STDERR:
copy-data-between-cages/cp-stncpy_grate.c	Success	STDOUT: [cage] pathname addr=0xfffb6ff9 [cage] pathname='random' [Grate\|open] intercepts open call: thiscage=1, arg1cage=2 [Grate\|open] copied pathname: random [cage] fd=10 STDERR:
copy-data-between-cages/cpdata_grate.c	Success	STDOUT: [Grate\|open] intercepts open call: thiscage=1, arg1cage=2 [Grate\|open] copied pathname: random [cage] fd=10 STDERR:
interposing-calls/fork-with-newret_grate.c	Success	STDOUT: [Grate\|interpose-fork] Registering fork handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-fork] Handling function ptr: 3 from cage: 1 [Grate\|interpose-fork] In fork_grate 1 handler for cage: 1 [Cage] Forked process with PID: 10 [Grate\|interpose-fork] PASS STDERR:
interposing-calls/interpose-exec_grate.c	Success	STDOUT: [Grate\|interpose-exec] Registering exec handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-exec] Handling function ptr: 3 from cage: 1 [Grate\|interpose-exec] In exec_grate 1 handler for cage: 1 [Grate\|interpose-exec] Handling function ptr: 3 from cage: 1 [Grate\|interpose-exec] In exec_grate 1 handler for cage: 1 Exec successful, argv[1]: --execd [Grate\|interpose-exec] PASS STDERR:
interposing-calls/interpose-exit_grate.c	Success	STDOUT: [Grate\|interpose-exit] Registering exit handler for cage 2 in grate 1 with fn ptr addr: 3 Exiting... [Grate\|interpose-exit] PASS STDERR:
interposing-calls/interpose-fork_grate.c	Success	STDOUT: [Grate\|interpose-fork] Registering fork handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-fork] Handling function ptr: 3 from cage: 1 [Grate\|interpose-fork] In fork_grate 1 handler for cage: 1 [Grate\|interpose-fork] PASS STDERR:
interposing-calls/interpose-mmap_grate.c	Success	STDOUT: [Grate\|interpose-mmap] Registering mmap handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 [Grate\|interpose-mmap] Handling function ptr: 3 from cage: 1 [Grate\|interpose-mmap] In mmap_grate 1 handler for cage: 1 mmap test: PASS [Grate\|interpose-mmap] PASS STDERR:
interposing-calls/interpose-register_grate.c	Success	STDOUT: [Grate\|interpose-register] Registering register_handler for cage 2 in grate 1 with fn ptr addr: 4 [cage] registering 107. grateid: 2 cageid: 3 [Grate\|interpose-register] Handling function ptr: 4 from cage: 1 [Grate\|interpose-register] In register_grate 1 handler for cage: 1 [Grate\|geteuid] Registering geteuid handler for cage 1 in grate 1 with fn ptr addr: 3 [Grate\|interpose-register] Handling function ptr: 3 from cage: 1 [Grate\|interpose-register] In register_grate 1 handler for cage: 1 [Grate\|interpose-register] PASS STDERR:
multi-register_grate.c	Success	STDOUT: [Grate\|multi-register_grate] Registering geteuid handler for cage 2 in grate 1 with fn ptr addr: 4 [Grate\|multi-register_grate] Registering getuid handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|multi-register_grate] Handling function ptr: 4 from cage: 1 [Grate\|multi-register_grate] In multi-register_grate 1 handler for cage: 1 [Grate\|multi-register_grate] Handling function ptr: 3 from cage: 1 [Grate\|multi-register_grate] In multi-register_grate 1 handler for cage: 1 [Cage \| multi-register] PASS: geteuid=10, getuid=20 [Grate\|multi-register] PASS STDERR:
simple-tests/copy-handler-table_grate.c	Success	STDOUT: [Grate\|copy-handler-table] Registering geteuid handler for cage 2 in grate 1 [Grate\|copy-handler-table] geteuid handler invoked for cage 1 [Grate\|copy-handler-table] geteuid handler invoked for cage 1 [Cage\|copy-handler-table] PASS: child inherited handler, then overwrite changed geteuid to 0 [Cage\|copy-handler-table] PASS: parent=123 child_exit=0 [Grate\|copy-handler-table] PASS STDERR:
simple-tests/diff-cage-args_grate.c	Success	STDOUT: [Grate\|diff-cage-args] Handling function ptr: 3 from cage: 1 [Grate\|diff-cage-args] In open_grate 1 handler for cage: 1 Hello world. FD=-1 [Grate\|diff-cage-args] Handling function ptr: 4 from cage: 1 Goodbye world! ret=4321 buf=helloworld [Grate\|diff-cage-args] PASS STDERR:
simple-tests/geteuid_grate.c	Success	STDOUT: [Grate\|geteuid] Registering geteuid handler for cage 2 in grate 1 with fn ptr addr: 3 [Grate\|geteuid] Handling function ptr: 3 from cage: 1 [Grate\|geteuid] In geteuid_grate 1 handler for cage: 1 [Cage \| geteuid] PASS: geteuid ret = 10 [Grate\|geteuid] PASS STDERR:

static harness

Test Report

Deterministic Tests

Summary

Metric	Count
Total Test Cases	3
Number of Successes	3
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

Test Results by Category

Test Case	Status	Error Type	Native Time	Wasm Time	Output
Static Tests
fork_simple.c	Success	None	0.062671s	3.902227s	Success
thread.c	Success	None	0.046428s	3.966779s	Success
tls_test.c	Success	None	0.049759s	3.972804s	Success

Fail Tests

Summary

Metric	Count
Total Test Cases	0
Number of Successes	0
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

wasm harness

Test Report

Deterministic Tests

Summary

Metric	Count
Total Test Cases	220
Number of Successes	220
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

Test Results by Category

Test Case	Status	Error Type	Native Time	Wasm Time	Output
File Tests
chartests.c	Success	None	0.046486s	0.143715s	Success
chdir_getcwd.c	Success	None	0.048364s	0.116864s	Success
chmod.c	Success	None	0.053579s	0.129358s	Success
clock_gettime_highlevel.c	Success	None	0.117227s	0.161271s	Success
clock_gettime_simple.c	Success	None	0.040879s	0.103577s	Success
cloexec.c	Success	None	0.051973s	0.140490s	Success
close.c	Success	None	0.057806s	0.139637s	Success
creat_access.c	Success	None	0.049810s	0.116793s	Success
doubleclose.c	Success	None	0.042260s	0.099689s	Success
dup.c	Success	None	0.042725s	0.116119s	Success
dup2.c	Success	None	0.048053s	0.113391s	Success
dup3.c	Success	None	0.046762s	0.115588s	Success
dupwrite.c	Success	None	0.050284s	0.115519s	Success
etc_conf.c	Success	None	0.044497s	0.118749s	Success
faccessat.c	Success	None	0.046340s	0.117392s	Success
fchdir.c	Success	None	0.052305s	0.127039s	Success
fchmod.c	Success	None	0.054191s	0.126895s	Success
fchmodat.c	Success	None	0.045914s	0.113514s	Success
fcntl.c	Success	None	0.048914s	0.129777s	Success
fcntl_dupfd.c	Success	None	0.042626s	0.106301s	Success
fdatasync.c	Success	None	0.048102s	0.111106s	Success
filetest.c	Success	None	0.049779s	0.111735s	Success
filetest1000.c	Success	None	0.057835s	0.123827s	Success
flock.c	Success	None	0.057761s	0.164589s	Success
fstat.c	Success	None	0.051879s	0.128532s	Success
fstatfs.c	Success	None	0.044662s	0.110107s	Success
fsync.c	Success	None	0.049705s	0.112559s	Success
ftruncate.c	Success	None	0.053335s	0.205207s	Success
getcwd.c	Success	None	0.046203s	0.106864s	Success
getcwd_null.c	Success	None	0.050300s	0.120804s	Success
getpgid.c	Success	None	0.043794s	0.102828s	Success
getrandom.c	Success	None	0.049114s	0.128561s	Success
ioctl.c	Success	None	0.053486s	0.123477s	Success
link.c	Success	None	0.053510s	0.156262s	Success
locale_test.c	Success	None	0.063190s	0.312160s	Success
lseek.c	Success	None	0.053964s	0.188827s	Success
lstat.c	Success	None	0.053490s	0.136487s	Success
mkdir_rmdir.c	Success	None	0.050119s	0.119760s	Success
mkfifo_test.c	Success	None	0.056096s	0.166360s	Success
mknod.c	Success	None	0.049582s	0.126824s	Success
nocancel_io.c	Success	None	0.053679s	0.140254s	Success
open.c	Success	None	0.045301s	0.104359s	Success
openat.c	Success	None	0.045782s	0.113177s	Success
path_conversion_safety.c	Success	None	0.053912s	0.136091s	Success
ppoll.c	Success	None	0.053895s	0.125362s	Success
pread_pwrite.c	Success	None	0.046808s	0.120003s	Success
preadv_pwritev.c	Success	None	0.053824s	0.133554s	Success
printf.c	Success	None	0.040902s	0.099137s	Success
prlimit64.c	Success	None	0.042714s	0.104487s	Success
read.c	Success	None	0.050400s	0.126318s	Success
readbytes.c	Success	None	0.046538s	0.108826s	Success
readdir_basic.c	Success	None	0.057136s	0.149034s	Success
readlink.c	Success	None	0.050909s	0.123031s	Success
readlinkat.c	Success	None	0.051653s	0.125871s	Success
readv_writev_test.c	Success	None	0.051987s	0.129052s	Success
rename.c	Success	None	0.056854s	0.122215s	Success
renameat.c	Success	None	0.052617s	0.132227s	Success
sc-writev.c	Success	None	0.048115s	0.115207s	Success
stat.c	Success	None	0.050325s	0.127537s	Success
statfs.c	Success	None	0.044160s	0.106884s	Success
symlink.c	Success	None	0.052745s	0.146298s	Success
sync_file_range.c	Success	None	0.047831s	0.112402s	Success
timespec_time_t_compat.c	Success	None	0.046715s	0.108680s	Success
trailing_slash.c	Success	None	0.048238s	0.122646s	Success
truncate.c	Success	None	0.051644s	0.136314s	Success
unlink.c	Success	None	0.052378s	0.151875s	Success
unlinkat.c	Success	None	0.052362s	0.134132s	Success
utimensat.c	Success	None	0.050505s	0.134561s	Success
write.c	Success	None	0.043469s	0.099837s	Success
writeloop.c	Success	None	0.053388s	0.118180s	Success
writepartial.c	Success	None	0.050913s	0.111016s	Success
writev.c	Success	None	0.052225s	0.124203s	Success
Math Tests
math_link_smoke.c	Success	None	0.053305s	0.109766s	Success
math_tests.c	Success	None	0.057926s	0.135929s	Success
printf_float.c	Success	None	0.055085s	0.131938s	Success
Memory Tests
brk.c	Success	None	0.048579s	0.116578s	Success
fork_large_memory.c	Success	None	0.085262s	0.452016s	Success
malloc.c	Success	None	0.047510s	0.105056s	Success
malloc_large.c	Success	None	0.051612s	0.113004s	Success
memcpy.c	Success	None	0.046788s	0.105862s	Success
memory_error_test.c	Success	None	0.057600s	0.144040s	Success
mmap.c	Success	None	0.044957s	0.112086s	Success
mmap_aligned.c	Success	None	0.045948s	0.123351s	Success
mmap_complicated.c	Success	None	0.053668s	0.144198s	Success
mmap_file.c	Success	None	0.057864s	0.128664s	Success
mmap_shared.c	Success	None	0.049587s	0.133945s	Success
mmaptest.c	Success	None	0.047761s	0.114324s	Success
mprotect.c	Success	None	0.047813s	0.112378s	Success
mprotect_boundary.c	Success	None	0.045675s	0.119778s	Success
mprotect_end_region.c	Success	None	0.043939s	0.120768s	Success
mprotect_middle_region.c	Success	None	0.049507s	0.118949s	Success
mprotect_multiple_times.c	Success	None	0.046000s	0.115161s	Success
mprotect_same_value.c	Success	None	0.045107s	0.110825s	Success
mprotect_spanning_regions.c	Success	None	0.045728s	0.132034s	Success
munmap_adjacent_shm.c	Success	None	0.047196s	0.132417s	Success
sbrk.c	Success	None	0.047983s	0.113562s	Success
segfault.c	Success	None	0.052888s	0.156555s	Success
shm.c	Success	None	0.056536s	0.152352s	Success
shmtest.c	Success	None	0.047818s	0.116251s	Success
thread_malloc_sequential.c	Success	None	0.056948s	0.215757s	Success
vtable.c	Success	None	0.063102s	0.129984s	Success
Networking Tests
accept4.c	Success	None	0.055873s	0.134212s	Success
dns_resolve_test.c	Success	None	0.049643s	0.118877s	Success
dnstest.c	Success	None	0.051259s	0.117146s	Success
epoll_badfd.c	Success	None	0.044433s	0.107253s	Success
epoll_edge_triggered.c	Success	None	0.208167s	0.377810s	Success
epollcreate1.c	Success	None	0.051762s	0.129588s	Success
error_handling_net.c	Success	None	0.059192s	0.189561s	Success
getaddrinfo_test.c	Success	None	0.055212s	0.153629s	Success
getaddrinfo_unspec.c	Success	None	0.052282s	0.178108s	Success
gethostname.c	Success	None	0.044586s	0.102361s	Success
getifaddrs.c	Success	None	0.052187s	0.120917s	Success
getsockname.c	Success	None	0.052017s	0.120684s	Success
getsockopt.c	Success	None	0.055093s	0.159350s	Success
ipv6_basic.c	Success	None	0.054845s	0.154276s	Success
makepipe.c	Success	None	0.043740s	0.101915s	Success
nonblocking_eagain.c	Success	None	0.055541s	0.164380s	Success
pipe.c	Success	None	0.052995s	0.127434s	Success
pipe2.c	Success	None	0.052131s	0.118753s	Success
pipeinput.c	Success	None	0.054733s	0.152599s	Success
pipeinput2.c	Success	None	0.054577s	0.155568s	Success
pipeonestring.c	Success	None	0.054131s	0.149915s	Success
pipepong.c	Success	None	0.056543s	0.154657s	Success
pipewrite.c	Success	None	0.046492s	0.116607s	Success
poll.c	Success	None	0.050846s	0.112898s	Success
recvfrom-sendto.c	Success	None	0.052832s	0.129612s	Success
sendmsg_recvmsg_test.c	Success	None	0.051751s	0.130175s	Success
serverclient.c	Success	None	0.051840s	0.132302s	Success
shutdown.c	Success	None	0.053227s	0.130200s	Success
shutdown_fork.c	Success	None	0.053903s	0.139771s	Success
simple-select.c	Success	None	0.054090s	0.150008s	Success
simple_epoll.c	Success	None	0.051377s	0.124525s	Success
socket.c	Success	None	0.049752s	0.115194s	Success
socket_cloexec.c	Success	None	0.049134s	0.112349s	Success
socket_options_advanced.c	Success	None	0.056691s	0.172203s	Success
socketepoll.c	Success	None	0.049940s	0.116686s	Success
socketpair.c	Success	None	0.049329s	0.133569s	Success
socketselect.c	Success	None	0.050174s	0.122340s	Success
udp_send_recv.c	Success	None	0.158790s	0.273878s	Success
uds-getsockname.c	Success	None	0.051176s	0.115026s	Success
uds-nb-select.c	Success	None	2.059880s	2.194662s	Success
uds-serverclient.c	Success	None	0.054930s	0.156001s	Success
uds-socketselect.c	Success	None	0.051635s	0.126481s	Success
uds_listen_poll.c	Success	None	1.058742s	1.167075s	Success
writev_socket.c	Success	None	0.055305s	0.154687s	Success
Process Tests
barrier_test.c	Success	None	0.049461s	0.138494s	Success
chain_thread.c	Success	None	1.055837s	1.157636s	Success
ctor_syscall_test.c	Success	None	0.042133s	0.103096s	Success
cxa_atexit_test.c	Success	None	0.047432s	0.108233s	Success
exec_non_utf8.c	Success	None	0.054616s	0.122959s	Success
execve_shebang.c	Success	None	0.051453s	0.121725s	Success
exit.c	Success	None	0.048390s	0.106474s	Success
exit_failure.c	Success	None	0.056157s	0.140926s	Success
exit_group_thread.c	Success	None	0.052191s	0.151924s	Success
exit_status_first_wins.c	Success	None	0.058142s	0.172396s	Success
flockfile_test.c	Success	None	0.050989s	0.150506s	Success
fork2malloc.c	Success	None	0.052485s	0.135458s	Success
fork_select.c	Success	None	0.052499s	0.142384s	Success
fork_simple.c	Success	None	0.055488s	0.143572s	Success
fork_syscall.c	Success	None	0.055688s	0.578611s	Success
fork_tls_ctype.c	Success	None	0.054395s	0.152693s	Success
forkandopen.c	Success	None	0.053641s	0.147925s	Success
forkdup.c	Success	None	0.053042s	0.139283s	Success
forkexecuid.c	Success	None	0.050394s	0.149892s	Success
forkexecv-arg.c	Success	None	0.049568s	0.141375s	Success
forkexecv.c	Success	None	0.056794s	0.153590s	Success
forkfiles.c	Success	None	0.051569s	0.139464s	Success
forkmalloc.c	Success	None	0.052023s	0.131651s	Success
forknodup.c	Success	None	0.051855s	0.141247s	Success
function-ptr.c	Success	None	0.045290s	0.106440s	Success
getegid_syscall.c	Success	None	0.052776s	0.463246s	Success
getgid_syscall.c	Success	None	0.053384s	0.482043s	Success
getpid.c	Success	None	0.048268s	0.117449s	Success
getpid_syscall.c	Success	None	0.053057s	0.486214s	Success
getppid.c	Success	None	0.053517s	0.136544s	Success
getppid_syscall.c	Success	None	0.055082s	0.384049s	Success
getuid.c	Success	None	0.056561s	0.119152s	Success
getuid_syscall.c	Success	None	0.049533s	0.237018s	Success
hello-arg.c	Success	None	0.042004s	0.106871s	Success
hello.c	Success	None	0.041847s	0.098806s	Success
longjmp.c	Success	None	0.042455s	0.111885s	Success
mutex.c	Success	None	2.059239s	2.138622s	Success
printf_deadlock_smoke.c	Success	None	0.059439s	0.170921s	Success
printf_thread_test.c	Success	None	0.054491s	0.156558s	Success
sem_forks.c	Success	None	0.053675s	0.169995s	Success
setsid.c	Success	None	0.043462s	0.102154s	Success
template.c	Success	None	0.051331s	0.173728s	Success
test_exec_nofork.c	Success	None	0.057071s	0.146652s	Success
test_unlink_open_file.c	Success	None	0.049244s	0.105012s	Success
thread-guard.c	Success	None	0.048550s	0.131818s	Success
thread-test.c	Success	None	0.051315s	0.135734s	Success
thread.c	Success	None	0.047147s	0.121761s	Success
thread_cageid_race.c	Success	None	0.048907s	0.320028s	Success
tls_test.c	Success	None	0.048832s	0.163938s	Success
uname.c	Success	None	0.047724s	0.110319s	Success
wait.c	Success	None	0.053034s	0.170991s	Success
waitpid_anychild.c	Success	None	0.052165s	0.133668s	Success
waitpid_syscall.c	Success	None	1.051617s	1.222316s	Success
waitpid_wnohang.c	Success	None	0.052840s	0.138933s	Success
Signal Tests
alarm.c	Success	None	7.049940s	7.151648s	Success
eintr_fork_signal.c	Success	None	1.052740s	1.149806s	Success
kill.c	Success	None	1.050283s	1.133792s	Success
setitimer.c	Success	None	7.050506s	7.143368s	Success
sigalrm.c	Success	None	2.051121s	2.132716s	Success
sigaltstack.c	Success	None	0.052731s	0.127898s	Success
sigchld.c	Success	None	1.053948s	1.133954s	Success
signal-fork.c	Success	None	4.051981s	4.130050s	Success
signal-simple.c	Success	None	0.052221s	0.118353s	Success
signal_SIGCHLD.c	Success	None	0.049390s	0.137535s	Success
signal_fork.c	Success	None	0.047482s	0.137129s	Success
signal_int_ignored.c	Success	None	2.051614s	2.134504s	Success
signal_kill_cleanup.c	Success	None	1.049704s	1.128436s	Success
signal_procmask.c	Success	None	0.045922s	0.116303s	Success
signal_read_interrupt.c	Success	None	0.554358s	0.644780s	Success
signal_recursive.c	Success	None	0.045650s	0.122623s	Success
signal_sa_mask.c	Success	None	0.044595s	0.112025s	Success
signal_select_interrupt.c	Success	None	0.557617s	0.649093s	Success
signal_write_interrupt.c	Success	None	1.053733s	1.134924s	Success
sigpipe.c	Success	None	1.052656s	1.142931s	Success
sigprocmask.c	Success	None	1.050672s	1.123225s	Success

Fail Tests

Summary

Metric	Count
Total Test Cases	4
Number of Successes	4
Number of Failures	0
Number of Compilation Failure Native	0
Number of Runtime Failure Native	0
Number of Segmentation Fault Native	0
Number of Timeout During Native	0
Number of Lind Wasm Compile Failure	0
Number of Lind Wasm Runtime Failure	0
Number of Lind Wasm Segmentation Failure	0
Number of Timeout During Lind Wasm run	0
Number of Unknown Failure	0
Number of C Compiler and Wasm Output mismatch	0
Number of Fail Test: Native Succeeded (Should Fail)	0
Number of Fail Test: Wasm Succeeded (Should Fail)	0
Number of Fail Test: Both Native and Wasm Succeeded (Should Fail)	0
Number of Fail Test: Native Compilation Failure (Should Succeed)	0
Number of Fail Test: Wasm Compilation Failure (Should Succeed)	0

Test Results by Category

Test Case	Status	Error Type	Native Time	Wasm Time	Output
Dylink Tests
dlerror.c	Success	None	0.042193s	0.106298s	Success
Memory Tests
mmap-negative1.c	Success	None	0.139168s	0.108462s	Success
mmap-negative2.c	Success	None	0.108373s	0.118103s	Success
Signal Tests
signal_resethand.c	Success	None	1.053755s	1.129131s	Success

C++ harness

Summary

Metric	Value
Total	1
Success	1
Failures	0
Compile failures	0
Runtime failures	0
Output mismatch	0
Timeouts	0

Cases

Test	Status	Error type	Native time	Wasm time	Output
tests/unit-tests/cpp/sort.cpp	Success		0.384262s	8.346080s	LIBCPP_SORT_OK 1 2 3

Daniel Zhao added 2 commits May 10, 2026 00:58

Fix debug runtime overflow and unaligned unwind metadata access

0bb02d3

Merge remote-tracking branch 'origin/main' into fix-debug-misaligned-…

43bb8c0

…pointer

Format lind-multi-process changes

d5a85eb

DanielZ224 requested review from Yaxuan-w and qianxichen233 May 10, 2026 19:14

Fix jmp_buf hash access in asyncify setjmp handling

f358000

Use aligned asyncify metadata access where possible

154ffb0

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DanielZ224 commented May 10, 2026

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