node 22.16.0 on OpenBSD: building a module with node-gyp spins in a tight loop

[VlkrS]

Version

22.16.0

Platform

OpenBSD 7.7-current, on i386

Subsystem

No response

What steps will reproduce the bug?

We bundle a custom node module wrapping OpenBSD's pledge(2) system call with the OpenBSD port of NodeJS. After updating to 22.16.0 we observe that on amd64 and arm64, building that with node-gyp succeeds as normal, however when building with a single core on i386, the node-gyp process hangs and spins in a tight loop.

How often does it reproduce? Is there a required condition?

Always reproducible on i386, not yet observed on any of the 64bit platforms

What is the expected behavior? Why is that the expected behavior?

node-gyp finishes with "ok" and the process terminates.

What do you see instead?

node-gyp finishes with "ok" but the process does not terminate.

Additional information

I realize that OpenBSD and particularly OpenBSD on 32bit is not a supported platform, but in case you can share an idea on which part of the 22.15.1...22.16.0 diff could be to blame, that would be very welcome.

I suspect that it might be related to #57910 but tbh I cannot really substantiate that.

[bnoordhuis]

Where does it spin? Can you grab some call stacks and post them here?

[VlkrS]

Here's a stack trace while node was spinning

Thread 11 (thread 214906 of process 4996):
#0  futex () at /tmp/-:2
#1  0x0cbd3925 in _twait (val=<optimized out>, clockid=<optimized out>, abs=0x53, p=<optimized out>) at /usr/src/lib/libc/thread/synch.h:36
#2  _rthread_cond_timedwait (cond=0x625a3e40, mutexp=0x2a8cb638 <mutex>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3  0x0cbd3b32 in pthread_cond_wait (condp=0x2a8cb63c <cond>, mutexp=0x2a8cb638 <mutex>) at /usr/src/lib/libc/thread/rthread_cond.c:163
#4  0x0a8ee64f in uv_cond_wait (cond=0x2a8cb63c <cond>, mutex=0x2a8cb638 <mutex>) at src/unix/thread.c:835
#5  0x0a8dc6a1 in worker (arg=<error reading variable: Cannot access memory at address 0x0>) at src/threadpool.c:77
#6  0x0d7a0f9d in _rthread_start (v=0x639ed82c) at /usr/src/lib/librthread/rthread.c:96
#7  0x0cc11112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 10 (thread 327377 of process 4996):
#0  futex () at /tmp/-:2
#1  0x0cbd3925 in _twait (val=<optimized out>, clockid=<optimized out>, abs=0x53, p=<optimized out>) at /usr/src/lib/libc/thread/synch.h:36
#2  _rthread_cond_timedwait (cond=0x625a3e40, mutexp=0x2a8cb638 <mutex>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3  0x0cbd3b32 in pthread_cond_wait (condp=0x2a8cb63c <cond>, mutexp=0x2a8cb638 <mutex>) at /usr/src/lib/libc/thread/rthread_cond.c:163
#4  0x0a8ee64f in uv_cond_wait (cond=0x2a8cb63c <cond>, mutex=0x2a8cb638 <mutex>) at src/unix/thread.c:835
#5  0x0a8dc6a1 in worker (arg=<error reading variable: Cannot access memory at address 0x0>) at src/threadpool.c:77
--Type <RET> for more, q to quit, c to continue without paging--
#6  0x0d7a0f9d in _rthread_start (v=0x639ec72c) at /usr/src/lib/librthread/rthread.c:96
#7  0x0cc11112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 9 (thread 395656 of process 4996):
#0  futex () at /tmp/-:2
#1  0x0cbd3925 in _twait (val=<optimized out>, clockid=<optimized out>, abs=0x53, p=<optimized out>) at /usr/src/lib/libc/thread/synch.h:36
#2  _rthread_cond_timedwait (cond=0x625a3e40, mutexp=0x2a8cb638 <mutex>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3  0x0cbd3b32 in pthread_cond_wait (condp=0x2a8cb63c <cond>, mutexp=0x2a8cb638 <mutex>) at /usr/src/lib/libc/thread/rthread_cond.c:163
#4  0x0a8ee64f in uv_cond_wait (cond=0x2a8cb63c <cond>, mutex=0x2a8cb638 <mutex>) at src/unix/thread.c:835
#5  0x0a8dc6a1 in worker (arg=<error reading variable: Cannot access memory at address 0x0>) at src/threadpool.c:77
#6  0x0d7a0f9d in _rthread_start (v=0x639eb12c) at /usr/src/lib/librthread/rthread.c:96
#7  0x0cc11112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 8 (thread 403625 of process 4996):
#0  futex () at /tmp/-:2
#1  0x0d79fd7d in _twait (val=<error reading variable: Cannot access memory at address 0x0>, clockid=<error reading variable: Cannot access memory at address 0x0>, abs=<optimized out>, p=<optimized out>) at /usr/src/lib/librthread/synch.h:36
#2  _sem_wait (sem=0x6259d530, can_eintr=1, abstime=0x0, delayed_cancel=0x61d0e4b4) at /usr/src/lib/librthread/rthread_sem.c:76
#3  0x0d7a00ec in sem_wait (semp=0x39819d64 <node::inspector::(anonymous namespace)::start_io_thread_semaphore>) at /usr/src/lib/librthread/rthread_sem.c:235
#4  0x0a8ee466 in uv__sem_wait (sem=0x39819d64 <node::inspector::(anonymous namespace)::start_io_thread_se--Type <RET> for more, q to quit, c to continue without paging--
maphore>) at src/unix/thread.c:660
#5  uv_sem_wait (sem=0x39819d64 <node::inspector::(anonymous namespace)::start_io_thread_semaphore>) at src/unix/thread.c:716
#6  0x1cae1153 in node::inspector::(anonymous namespace)::StartIoThreadMain(void*) ()
#7  0x0d7a0f9d in _rthread_start (v=0x61d0e42c) at /usr/src/lib/librthread/rthread.c:96
#8  0x0cc11112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 7 (thread 114232 of process 4996):
#0  0x1e5161b5 in v8::internal::compiler::turboshaft::MaybeRedundantStoresTable::map_to_key(v8::internal::compiler::turboshaft::OpIndex, int, unsigned char) ()
#1  0x1e5146f0 in v8::internal::compiler::turboshaft::RedundantStoreAnalysis::ProcessBlock(v8::internal::compiler::turboshaft::Block const&) ()
#2  0x1e513f66 in v8::internal::compiler::turboshaft::StoreStoreEliminationReducer<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::Analyze() ()
#3  0x1e512082 in void v8::internal::compiler::turboshaft::GraphVisitor<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumbe--Type <RET> for more, q to quit, c to continue without paging--
ringReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::VisitGraph<false>() ()
#4  0x1e512012 in v8::internal::compiler::turboshaft::CopyingPhaseImpl<v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer>::Run(v8::internal::compiler::turboshaft::Graph&, v8::internal::Zone*, bool) ()
#5  0x1e511f10 in v8::internal::compiler::turboshaft::StoreStoreEliminationPhase::Run(v8::internal::Zone*) ()
#6  0x1de4382f in auto v8::internal::compiler::PipelineImpl::Run<v8::internal::compiler::turboshaft::StoreStoreEliminationPhase>() ()
#7  0x1de3d43f in v8::internal::compiler::PipelineImpl::OptimizeGraph(v8::internal::compiler::Linkage*) ()
#8  0x1de3c599 in v8::internal::compiler::PipelineCompilationJob::ExecuteJobImpl(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#9  0x1cdb73e4 in v8::internal::OptimizedCompilationJob::ExecuteJob(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#10 0x1cdf1830 in v8::internal::OptimizingCompileDispatcher::CompileNext(v8::internal::TurbofanCompilationJob*, v8::internal::LocalIsolate*) ()
#11 0x1cdf31a1 in v8::internal::OptimizingCompileDispatcher::CompileTask::Run(v8::JobDelegate*) ()
#12 0x1d994ffd in v8::platform::DefaultJobWorker::Run() ()
#13 0x1c7945f7 in node::(anonymous namespace)::PlatformWorkerThread(void*) ()
#14 0x0d7a0f9d in _rthread_start (v=0x61d0e32c) at /usr/src/lib/librthread/rthread.c:96
#15 0x0cc11112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

--Type <RET> for more, q to quit, c to continue without paging--
Thread 6 (thread 146470 of process 4996):
#0  futex () at /tmp/-:2
#1  0x0cbd3925 in _twait (val=<optimized out>, clockid=<optimized out>, abs=0x53, p=<optimized out>) at /usr/src/lib/libc/thread/synch.h:36
#2  _rthread_cond_timedwait (cond=0x7e0c3750, mutexp=0x7e37305c, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3  0x0cbd3b32 in pthread_cond_wait (condp=0x7e373060, mutexp=0x7e37305c) at /usr/src/lib/libc/thread/rthread_cond.c:163
#4  0x0a8ee64f in uv_cond_wait (cond=0x7e373060, mutex=0x7e37305c) at src/unix/thread.c:835
#5  0x1c490f7f in node::LibuvMutexTraits::cond_wait(pthread_cond**, pthread_mutex volatile**) ()
#6  0x1c490f01 in node::ConditionVariableBase<node::LibuvMutexTraits>::Wait(node::MutexBase<node::LibuvMutexTraits>::ScopedLock const&) ()
#7  0x1c79cd67 in node::TaskQueue<v8::Task>::Locked::BlockingPop() ()
#8  0x1c79452d in node::(anonymous namespace)::PlatformWorkerThread(void*) ()
#9  0x0d7a0f9d in _rthread_start (v=0x639eb02c) at /usr/src/lib/librthread/rthread.c:96
#10 0x0cc11112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 5 (thread 420543 of process 4996):
#0  futex () at /tmp/-:2
#1  0x0cbd3925 in _twait (val=<optimized out>, clockid=<optimized out>, abs=0x53, p=<optimized out>) at /usr/src/lib/libc/thread/synch.h:36
#2  _rthread_cond_timedwait (cond=0x7e0c3750, mutexp=0x7e37305c, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3  0x0cbd3b32 in pthread_cond_wait (condp=0x7e373060, mutexp=0x7e37305c) at /usr/src/lib/libc/thread/rthread_cond.c:163
#4  0x0a8ee64f in uv_cond_wait (cond=0x7e373060, mutex=0x7e37305c) at src/unix/thread.c:835
#5  0x1c490f7f in node::LibuvMutexTraits::cond_wait(pthread_cond**, pthread_mutex volatile**) ()
#6  0x1c490f01 in node::ConditionVariableBase<node::LibuvMutexTraits>::Wait(node::MutexBase<node::LibuvMut--Type <RET> for more, q to quit, c to continue without paging--
exTraits>::ScopedLock const&) ()
#7  0x1c79cd67 in node::TaskQueue<v8::Task>::Locked::BlockingPop() ()
#8  0x1c79452d in node::(anonymous namespace)::PlatformWorkerThread(void*) ()
#9  0x0d7a0f9d in _rthread_start (v=0x639ecd2c) at /usr/src/lib/librthread/rthread.c:96
#10 0x0cc11112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 4 (thread 603023 of process 4996):
#0  futex () at /tmp/-:2
#1  0x0cbd3925 in _twait (val=<optimized out>, clockid=<optimized out>, abs=0x53, p=<optimized out>) at /usr/src/lib/libc/thread/synch.h:36
#2  _rthread_cond_timedwait (cond=0x7e0c3750, mutexp=0x7e37305c, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3  0x0cbd3b32 in pthread_cond_wait (condp=0x7e373060, mutexp=0x7e37305c) at /usr/src/lib/libc/thread/rthread_cond.c:163
#4  0x0a8ee64f in uv_cond_wait (cond=0x7e373060, mutex=0x7e37305c) at src/unix/thread.c:835
#5  0x1c490f7f in node::LibuvMutexTraits::cond_wait(pthread_cond**, pthread_mutex volatile**) ()
#6  0x1c490f01 in node::ConditionVariableBase<node::LibuvMutexTraits>::Wait(node::MutexBase<node::LibuvMutexTraits>::ScopedLock const&) ()
#7  0x1c79cd67 in node::TaskQueue<v8::Task>::Locked::BlockingPop() ()
#8  0x1c79452d in node::(anonymous namespace)::PlatformWorkerThread(void*) ()
#9  0x0d7a0f9d in _rthread_start (v=0x639ecc2c) at /usr/src/lib/librthread/rthread.c:96
#10 0x0cc11112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 3 (thread 295626 of process 4996):
#0  kevent () at /tmp/-:2
#1  0x0a8f1439 in uv__io_poll (loop=0x7e0c2a34, timeout=<optimized out>) at src/unix/kqueue.c:286
#2  0x0a8e07a2 in uv_run (loop=0x7e0c2a34, mode=UV_RUN_DEFAULT) at src/unix/core.c:460
#3  0x1c79ca50 in node::WorkerThreadsTaskRunner::DelayedTaskScheduler::Run() ()
--Type <RET> for more, q to quit, c to continue without paging--
#4  0x1c79c646 in node::WorkerThreadsTaskRunner::DelayedTaskScheduler::Start()::{lambda(void*)#1}::operator()(void*) const ()
#5  0x1c79c5e8 in node::WorkerThreadsTaskRunner::DelayedTaskScheduler::Start()::{lambda(void*)#1}::__invoke(void*) ()
#6  0x0d7a0f9d in _rthread_start (v=0x639eda2c) at /usr/src/lib/librthread/rthread.c:96
#7  0x0cc11112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 2 (thread 523924 of process 4996):
#0  futex () at /tmp/-:2
#1  0x0cbd3925 in _twait (val=<optimized out>, clockid=<optimized out>, abs=0x53, p=<optimized out>) at /usr/src/lib/libc/thread/synch.h:36
#2  _rthread_cond_timedwait (cond=0x7e0c3e10, mutexp=0x7e37305c, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3  0x0cbd3b32 in pthread_cond_wait (condp=0x7e373064, mutexp=0x7e37305c) at /usr/src/lib/libc/thread/rthread_cond.c:163
#4  0x0a8ee64f in uv_cond_wait (cond=0x7e373064, mutex=0x7e37305c) at src/unix/thread.c:835
#5  0x1c490f7f in node::LibuvMutexTraits::cond_wait(pthread_cond**, pthread_mutex volatile**) ()
#6  0x1c490f01 in node::ConditionVariableBase<node::LibuvMutexTraits>::Wait(node::MutexBase<node::LibuvMutexTraits>::ScopedLock const&) ()
#7  0x1c798c18 in node::TaskQueue<v8::Task>::Locked::BlockingDrain() ()
#8  0x1c794899 in node::WorkerThreadsTaskRunner::BlockingDrain() ()
#9  0x1c796c9b in node::NodePlatform::DrainTasks(v8::Isolate*) ()
#10 0x1c168dc1 in node::SpinEventLoopInternal(node::Environment*) ()
#11 0x1c6e22a5 in node::NodeMainInstance::Run(node::ExitCode*, node::Environment*) ()
#12 0x1c6e1bc1 in node::NodeMainInstance::Run() ()
#13 0x1c46c70f in node::StartInternal(int, char**) ()
#14 0x1c46c186 in node::Start(int, char**) ()
#15 0x1d80a0c6 in main ()
--Type <RET> for more, q to quit, c to continue without paging--

Thread 1 (thread 617253 of process 4996):
#0  futex () at /tmp/-:2
#1  0x0cbd3925 in _twait (val=<optimized out>, clockid=<optimized out>, abs=0x58, p=<optimized out>) at /usr/src/lib/libc/thread/synch.h:36
#2  _rthread_cond_timedwait (cond=0x625a3e40, mutexp=0x2a8cb638 <mutex>, abs=0x0) at /usr/src/lib/libc/thread/rthread_cond.c:106
#3  0x0cbd3b32 in pthread_cond_wait (condp=0x2a8cb63c <cond>, mutexp=0x2a8cb638 <mutex>) at /usr/src/lib/libc/thread/rthread_cond.c:163
#4  0x0a8ee64f in uv_cond_wait (cond=0x2a8cb63c <cond>, mutex=0x2a8cb638 <mutex>) at src/unix/thread.c:835
#5  0x0a8dc6a1 in worker (arg=<error reading variable: Cannot access memory at address 0x0>) at src/threadpool.c:77
#6  0x0d7a0f9d in _rthread_start (v=0x639ed22c) at /usr/src/lib/librthread/rthread.c:96
#7  0x0cc11112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

[bnoordhuis]

Only thread 7 is doing something, the others are suspended, and it's compiling JS code in the background. Does that thread's call stack change materially over time?

[VlkrS]

Here's a few traces of Thread 7 taken in 10s intervals. It's moving slowly over time.

Thread 7 (thread 345975 of process 13446):
#0  0x20caf21e in v8::internal::compiler::turboshaft::MaybeRedundantStoresTable::map_to_key(v8::internal::compiler::turboshaft::OpIndex, int, unsigned char) ()
#1  0x20cad6f0 in v8::internal::compiler::turboshaft::RedundantStoreAnalysis::ProcessBlock(v8::internal::compiler::turboshaft::Block const&) ()
#2  0x20cacf66 in v8::internal::compiler::turboshaft::StoreStoreEliminationReducer<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::Analyze() ()
#3  0x20cab082 in void v8::internal::compiler::turboshaft::GraphVisitor<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::VisitGraph<false>() ()
#4  0x20cab012 in v8::internal::compiler::turboshaft::CopyingPhaseImpl<v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer>::Run(v8::internal::compiler::turboshaft::Graph&, v8::internal::Zone*, bool) ()
#5  0x20caaf10 in v8::internal::compiler::turboshaft::StoreStoreEliminationPhase::Run(v8::internal::Zone*) ()
#6  0x205dc82f in auto v8::internal::compiler::PipelineImpl::Run<v8::internal::compiler::turboshaft::StoreStoreEliminationPhase>() ()
#7  0x205d643f in v8::internal::compiler::PipelineImpl::OptimizeGraph(v8::internal::compiler::Linkage*) ()
#8  0x205d5599 in v8::internal::compiler::PipelineCompilationJob::ExecuteJobImpl(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#9  0x1f5503e4 in v8::internal::OptimizedCompilationJob::ExecuteJob(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#10 0x1f58a830 in v8::internal::OptimizingCompileDispatcher::CompileNext(v8::internal::TurbofanCompilationJob*, v8::internal::LocalIsolate*) ()
#11 0x1f58c1a1 in v8::internal::OptimizingCompileDispatcher::CompileTask::Run(v8::JobDelegate*) ()
#12 0x2012dffd in v8::platform::DefaultJobWorker::Run() ()
#13 0x1ef2d5f7 in node::(anonymous namespace)::PlatformWorkerThread(void*) ()
#14 0x019c0f9d in _rthread_start (v=0x7f5d572c) at /usr/src/lib/librthread/rthread.c:96
#15 0x01978112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 7 (thread 345975 of process 13446):
#0  0x20caf1bb in v8::internal::compiler::turboshaft::MaybeRedundantStoresTable::map_to_key(v8::internal::compiler::turboshaft::OpIndex, int, unsigned char) ()
#1  0x20cad6f0 in v8::internal::compiler::turboshaft::RedundantStoreAnalysis::ProcessBlock(v8::internal::compiler::turboshaft::Block const&) ()
#2  0x20cacf66 in v8::internal::compiler::turboshaft::StoreStoreEliminationReducer<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::Analyze() ()
#3  0x20cab082 in void v8::internal::compiler::turboshaft::GraphVisitor<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::VisitGraph<false>() ()
#4  0x20cab012 in v8::internal::compiler::turboshaft::CopyingPhaseImpl<v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer>::Run(v8::internal::compiler::turboshaft::Graph&, v8::internal::Zone*, bool) ()
#5  0x20caaf10 in v8::internal::compiler::turboshaft::StoreStoreEliminationPhase::Run(v8::internal::Zone*) ()
#6  0x205dc82f in auto v8::internal::compiler::PipelineImpl::Run<v8::internal::compiler::turboshaft::StoreStoreEliminationPhase>() ()
#7  0x205d643f in v8::internal::compiler::PipelineImpl::OptimizeGraph(v8::internal::compiler::Linkage*) ()
#8  0x205d5599 in v8::internal::compiler::PipelineCompilationJob::ExecuteJobImpl(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#9  0x1f5503e4 in v8::internal::OptimizedCompilationJob::ExecuteJob(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#10 0x1f58a830 in v8::internal::OptimizingCompileDispatcher::CompileNext(v8::internal::TurbofanCompilationJob*, v8::internal::LocalIsolate*) ()
#11 0x1f58c1a1 in v8::internal::OptimizingCompileDispatcher::CompileTask::Run(v8::JobDelegate*) ()
#12 0x2012dffd in v8::platform::DefaultJobWorker::Run() ()
#13 0x1ef2d5f7 in node::(anonymous namespace)::PlatformWorkerThread(void*) ()
#14 0x019c0f9d in _rthread_start (v=0x7f5d572c) at /usr/src/lib/librthread/rthread.c:96
#15 0x01978112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 7 (thread 345975 of process 13446):
#0  0x20caf22e in v8::internal::compiler::turboshaft::MaybeRedundantStoresTable::map_to_key(v8::internal::compiler::turboshaft::OpIndex, int, unsigned char) ()
#1  0x20cad6f0 in v8::internal::compiler::turboshaft::RedundantStoreAnalysis::ProcessBlock(v8::internal::compiler::turboshaft::Block const&) ()
#2  0x20cacf66 in v8::internal::compiler::turboshaft::StoreStoreEliminationReducer<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::Analyze() ()
#3  0x20cab082 in void v8::internal::compiler::turboshaft::GraphVisitor<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::VisitGraph<false>() ()
#4  0x20cab012 in v8::internal::compiler::turboshaft::CopyingPhaseImpl<v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer>::Run(v8::internal::compiler::turboshaft::Graph&, v8::internal::Zone*, bool) ()
#5  0x20caaf10 in v8::internal::compiler::turboshaft::StoreStoreEliminationPhase::Run(v8::internal::Zone*) ()
#6  0x205dc82f in auto v8::internal::compiler::PipelineImpl::Run<v8::internal::compiler::turboshaft::StoreStoreEliminationPhase>() ()
#7  0x205d643f in v8::internal::compiler::PipelineImpl::OptimizeGraph(v8::internal::compiler::Linkage*) ()
#8  0x205d5599 in v8::internal::compiler::PipelineCompilationJob::ExecuteJobImpl(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#9  0x1f5503e4 in v8::internal::OptimizedCompilationJob::ExecuteJob(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#10 0x1f58a830 in v8::internal::OptimizingCompileDispatcher::CompileNext(v8::internal::TurbofanCompilationJob*, v8::internal::LocalIsolate*) ()
#11 0x1f58c1a1 in v8::internal::OptimizingCompileDispatcher::CompileTask::Run(v8::JobDelegate*) ()
#12 0x2012dffd in v8::platform::DefaultJobWorker::Run() ()
#13 0x1ef2d5f7 in node::(anonymous namespace)::PlatformWorkerThread(void*) ()
#14 0x019c0f9d in _rthread_start (v=0x7f5d572c) at /usr/src/lib/librthread/rthread.c:96
#15 0x01978112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 7 (thread 345975 of process 13446):
#0  0x20caf21c in v8::internal::compiler::turboshaft::MaybeRedundantStoresTable::map_to_key(v8::internal::compiler::turboshaft::OpIndex, int, unsigned char) ()
#1  0x20cad6f0 in v8::internal::compiler::turboshaft::RedundantStoreAnalysis::ProcessBlock(v8::internal::compiler::turboshaft::Block const&) ()
#2  0x20cacf66 in v8::internal::compiler::turboshaft::StoreStoreEliminationReducer<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::Analyze() ()
#3  0x20cab082 in void v8::internal::compiler::turboshaft::GraphVisitor<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::VisitGraph<false>() ()
#4  0x20cab012 in v8::internal::compiler::turboshaft::CopyingPhaseImpl<v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer>::Run(v8::internal::compiler::turboshaft::Graph&, v8::internal::Zone*, bool) ()
#5  0x20caaf10 in v8::internal::compiler::turboshaft::StoreStoreEliminationPhase::Run(v8::internal::Zone*) ()
#6  0x205dc82f in auto v8::internal::compiler::PipelineImpl::Run<v8::internal::compiler::turboshaft::StoreStoreEliminationPhase>() ()
#7  0x205d643f in v8::internal::compiler::PipelineImpl::OptimizeGraph(v8::internal::compiler::Linkage*) ()
#8  0x205d5599 in v8::internal::compiler::PipelineCompilationJob::ExecuteJobImpl(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#9  0x1f5503e4 in v8::internal::OptimizedCompilationJob::ExecuteJob(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#10 0x1f58a830 in v8::internal::OptimizingCompileDispatcher::CompileNext(v8::internal::TurbofanCompilationJob*, v8::internal::LocalIsolate*) ()
#11 0x1f58c1a1 in v8::internal::OptimizingCompileDispatcher::CompileTask::Run(v8::JobDelegate*) ()
#12 0x2012dffd in v8::platform::DefaultJobWorker::Run() ()
#13 0x1ef2d5f7 in node::(anonymous namespace)::PlatformWorkerThread(void*) ()
#14 0x019c0f9d in _rthread_start (v=0x7f5d572c) at /usr/src/lib/librthread/rthread.c:96
#15 0x01978112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 7 (thread 345975 of process 13446):
#0  0x20caf21e in v8::internal::compiler::turboshaft::MaybeRedundantStoresTable::map_to_key(v8::internal::compiler::turboshaft::OpIndex, int, unsigned char) ()
#1  0x20cad6f0 in v8::internal::compiler::turboshaft::RedundantStoreAnalysis::ProcessBlock(v8::internal::compiler::turboshaft::Block const&) ()
#2  0x20cacf66 in v8::internal::compiler::turboshaft::StoreStoreEliminationReducer<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::Analyze() ()
#3  0x20cab082 in void v8::internal::compiler::turboshaft::GraphVisitor<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::VisitGraph<false>() ()
#4  0x20cab012 in v8::internal::compiler::turboshaft::CopyingPhaseImpl<v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer>::Run(v8::internal::compiler::turboshaft::Graph&, v8::internal::Zone*, bool) ()
#5  0x20caaf10 in v8::internal::compiler::turboshaft::StoreStoreEliminationPhase::Run(v8::internal::Zone*) ()
#6  0x205dc82f in auto v8::internal::compiler::PipelineImpl::Run<v8::internal::compiler::turboshaft::StoreStoreEliminationPhase>() ()
#7  0x205d643f in v8::internal::compiler::PipelineImpl::OptimizeGraph(v8::internal::compiler::Linkage*) ()
#8  0x205d5599 in v8::internal::compiler::PipelineCompilationJob::ExecuteJobImpl(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#9  0x1f5503e4 in v8::internal::OptimizedCompilationJob::ExecuteJob(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#10 0x1f58a830 in v8::internal::OptimizingCompileDispatcher::CompileNext(v8::internal::TurbofanCompilationJob*, v8::internal::LocalIsolate*) ()
#11 0x1f58c1a1 in v8::internal::OptimizingCompileDispatcher::CompileTask::Run(v8::JobDelegate*) ()
#12 0x2012dffd in v8::platform::DefaultJobWorker::Run() ()
#13 0x1ef2d5f7 in node::(anonymous namespace)::PlatformWorkerThread(void*) ()
#14 0x019c0f9d in _rthread_start (v=0x7f5d572c) at /usr/src/lib/librthread/rthread.c:96
#15 0x01978112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 7 (thread 345975 of process 13446):
#0  0x20caf21e in v8::internal::compiler::turboshaft::MaybeRedundantStoresTable::map_to_key(v8::internal::compiler::turboshaft::OpIndex, int, unsigned char) ()
#1  0x20cad6f0 in v8::internal::compiler::turboshaft::RedundantStoreAnalysis::ProcessBlock(v8::internal::compiler::turboshaft::Block const&) ()
#2  0x20cacf66 in v8::internal::compiler::turboshaft::StoreStoreEliminationReducer<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::Analyze() ()
#3  0x20cab082 in void v8::internal::compiler::turboshaft::GraphVisitor<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::VisitGraph<false>() ()
#4  0x20cab012 in v8::internal::compiler::turboshaft::CopyingPhaseImpl<v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer>::Run(v8::internal::compiler::turboshaft::Graph&, v8::internal::Zone*, bool) ()
#5  0x20caaf10 in v8::internal::compiler::turboshaft::StoreStoreEliminationPhase::Run(v8::internal::Zone*) ()
#6  0x205dc82f in auto v8::internal::compiler::PipelineImpl::Run<v8::internal::compiler::turboshaft::StoreStoreEliminationPhase>() ()
#7  0x205d643f in v8::internal::compiler::PipelineImpl::OptimizeGraph(v8::internal::compiler::Linkage*) ()
#8  0x205d5599 in v8::internal::compiler::PipelineCompilationJob::ExecuteJobImpl(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#9  0x1f5503e4 in v8::internal::OptimizedCompilationJob::ExecuteJob(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#10 0x1f58a830 in v8::internal::OptimizingCompileDispatcher::CompileNext(v8::internal::TurbofanCompilationJob*, v8::internal::LocalIsolate*) ()
#11 0x1f58c1a1 in v8::internal::OptimizingCompileDispatcher::CompileTask::Run(v8::JobDelegate*) ()
#12 0x2012dffd in v8::platform::DefaultJobWorker::Run() ()
#13 0x1ef2d5f7 in node::(anonymous namespace)::PlatformWorkerThread(void*) ()
#14 0x019c0f9d in _rthread_start (v=0x7f5d572c) at /usr/src/lib/librthread/rthread.c:96
#15 0x01978112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

#0  0x20caf1b9 in v8::internal::compiler::turboshaft::MaybeRedundantStoresTable::map_to_key(v8::internal::compiler::turboshaft::OpIndex, int, unsigned char) ()
#1  0x20cad6f0 in v8::internal::compiler::turboshaft::RedundantStoreAnalysis::ProcessBlock(v8::internal::compiler::turboshaft::Block const&) ()
#2  0x20cacf66 in v8::internal::compiler::turboshaft::StoreStoreEliminationReducer<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::Analyze() ()
#3  0x20cab082 in void v8::internal::compiler::turboshaft::GraphVisitor<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::VisitGraph<false>() ()
#4  0x20cab012 in v8::internal::compiler::turboshaft::CopyingPhaseImpl<v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer>::Run(v8::internal::compiler::turboshaft::Graph&, v8::internal::Zone*, bool) ()
#5  0x20caaf10 in v8::internal::compiler::turboshaft::StoreStoreEliminationPhase::Run(v8::internal::Zone*) ()
#6  0x205dc82f in auto v8::internal::compiler::PipelineImpl::Run<v8::internal::compiler::turboshaft::StoreStoreEliminationPhase>() ()
#7  0x205d643f in v8::internal::compiler::PipelineImpl::OptimizeGraph(v8::internal::compiler::Linkage*) ()
#8  0x205d5599 in v8::internal::compiler::PipelineCompilationJob::ExecuteJobImpl(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#9  0x1f5503e4 in v8::internal::OptimizedCompilationJob::ExecuteJob(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#10 0x1f58a830 in v8::internal::OptimizingCompileDispatcher::CompileNext(v8::internal::TurbofanCompilationJob*, v8::internal::LocalIsolate*) ()
#11 0x1f58c1a1 in v8::internal::OptimizingCompileDispatcher::CompileTask::Run(v8::JobDelegate*) ()
#12 0x2012dffd in v8::platform::DefaultJobWorker::Run() ()
#13 0x1ef2d5f7 in node::(anonymous namespace)::PlatformWorkerThread(void*) ()
#14 0x019c0f9d in _rthread_start (v=0x7f5d572c) at /usr/src/lib/librthread/rthread.c:96
#15 0x01978112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

Thread 7 (thread 345975 of process 13446):
#0  0x20caf1bb in v8::internal::compiler::turboshaft::MaybeRedundantStoresTable::map_to_key(v8::internal::compiler::turboshaft::OpIndex, int, unsigned char) ()
#1  0x20cad6f0 in v8::internal::compiler::turboshaft::RedundantStoreAnalysis::ProcessBlock(v8::internal::compiler::turboshaft::Block const&) ()
#2  0x20cacf66 in v8::internal::compiler::turboshaft::StoreStoreEliminationReducer<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::Analyze() ()
#3  0x20cab082 in void v8::internal::compiler::turboshaft::GraphVisitor<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::VisitGraph<false>() ()
#4  0x20cab012 in v8::internal::compiler::turboshaft::CopyingPhaseImpl<v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer>::Run(v8::internal::compiler::turboshaft::Graph&, v8::internal::Zone*, bool) ()
#5  0x20caaf10 in v8::internal::compiler::turboshaft::StoreStoreEliminationPhase::Run(v8::internal::Zone*) ()
#6  0x205dc82f in auto v8::internal::compiler::PipelineImpl::Run<v8::internal::compiler::turboshaft::StoreStoreEliminationPhase>() ()
#7  0x205d643f in v8::internal::compiler::PipelineImpl::OptimizeGraph(v8::internal::compiler::Linkage*) ()
#8  0x205d5599 in v8::internal::compiler::PipelineCompilationJob::ExecuteJobImpl(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#9  0x1f5503e4 in v8::internal::OptimizedCompilationJob::ExecuteJob(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#10 0x1f58a830 in v8::internal::OptimizingCompileDispatcher::CompileNext(v8::internal::TurbofanCompilationJob*, v8::internal::LocalIsolate*) ()
#11 0x1f58c1a1 in v8::internal::OptimizingCompileDispatcher::CompileTask::Run(v8::JobDelegate*) ()
#12 0x2012dffd in v8::platform::DefaultJobWorker::Run() ()
#13 0x1ef2d5f7 in node::(anonymous namespace)::PlatformWorkerThread(void*) ()
#14 0x019c0f9d in _rthread_start (v=0x7f5d572c) at /usr/src/lib/librthread/rthread.c:96
#15 0x01978112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

#0  0x20caf22e in v8::internal::compiler::turboshaft::MaybeRedundantStoresTable::map_to_key(v8::internal::compiler::turboshaft::OpIndex, int, unsigned char) ()
#1  0x20cad6f0 in v8::internal::compiler::turboshaft::RedundantStoreAnalysis::ProcessBlock(v8::internal::compiler::turboshaft::Block const&) ()
#2  0x20cacf66 in v8::internal::compiler::turboshaft::StoreStoreEliminationReducer<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::Analyze() ()
#3  0x20cab082 in void v8::internal::compiler::turboshaft::GraphVisitor<v8::internal::compiler::turboshaft::ReducerStack<v8::internal::compiler::turboshaft::Assembler<v8::internal::compiler::turboshaft::reducer_list<v8::internal::compiler::turboshaft::TurboshaftAssemblerOpInterface, v8::internal::compiler::turboshaft::GraphVisitor, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >, true, v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer, v8::internal::compiler::turboshaft::TSReducerBase> >::VisitGraph<false>() ()
#4  0x20cab012 in v8::internal::compiler::turboshaft::CopyingPhaseImpl<v8::internal::compiler::turboshaft::StoreStoreEliminationReducer, v8::internal::compiler::turboshaft::LateLoadEliminationReducer, v8::internal::compiler::turboshaft::MachineOptimizationReducer, v8::internal::compiler::turboshaft::BranchEliminationReducer, v8::internal::compiler::turboshaft::ValueNumberingReducer>::Run(v8::internal::compiler::turboshaft::Graph&, v8::internal::Zone*, bool) ()
#5  0x20caaf10 in v8::internal::compiler::turboshaft::StoreStoreEliminationPhase::Run(v8::internal::Zone*) ()
#6  0x205dc82f in auto v8::internal::compiler::PipelineImpl::Run<v8::internal::compiler::turboshaft::StoreStoreEliminationPhase>() ()
#7  0x205d643f in v8::internal::compiler::PipelineImpl::OptimizeGraph(v8::internal::compiler::Linkage*) ()
#8  0x205d5599 in v8::internal::compiler::PipelineCompilationJob::ExecuteJobImpl(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#9  0x1f5503e4 in v8::internal::OptimizedCompilationJob::ExecuteJob(v8::internal::RuntimeCallStats*, v8::internal::LocalIsolate*) ()
#10 0x1f58a830 in v8::internal::OptimizingCompileDispatcher::CompileNext(v8::internal::TurbofanCompilationJob*, v8::internal::LocalIsolate*) ()
#11 0x1f58c1a1 in v8::internal::OptimizingCompileDispatcher::CompileTask::Run(v8::JobDelegate*) ()
#12 0x2012dffd in v8::platform::DefaultJobWorker::Run() ()
#13 0x1ef2d5f7 in node::(anonymous namespace)::PlatformWorkerThread(void*) ()
#14 0x019c0f9d in _rthread_start (v=0x7f5d572c) at /usr/src/lib/librthread/rthread.c:96
#15 0x01978112 in __tfork_thread () at /usr/src/lib/libc/arch/i386/sys/tfork_thread.S:93

[bnoordhuis]

It looks like it's hitting pathological behavior in V8's optimizing compiler. I can't pinpoint from here what's causing that but you should be able to confirm/deny that hypothesis by passing --noturbofan or --jitless to node. You may need to hack node-gyp's shebang for that.

[VlkrS]

I can confirm that hypothesis: I tried both options, and both work.

Also, I confirmed that 22.15.1 didn't show that behavior with an identical setup.

[bnoordhuis]

That's odd because I don't think there have been V8 changes between 22.15.1 and 22.16.0 that can be responsible.

I looked through other changes but there are no obvious suspects. Is it an option to run git bisect to find the offending commit?

[VlkrS]

I reverted the v8 changes except for the PerfJit change that only affects Linux and MacOS. That didn't change anything. Bisecting is a bit of a pain when you have a single-core i386 to work with, but I'll keep looking :-)

[jpalus]

FWIW we had very similar report in PLD Linux under same conditions 2.15.1 -> 2.16.0 on i386 causing yarn hang.

[VlkrS]

Could well be related. Aside from node-gyp, npm causes hangs too

[jpalus]

Fortunately the issue is easily reproducible on x86_64 in container with i386 userspace so bisecting was rather straightforward although result was pretty surprising (c56f495):

c56f495e833873b8ec94e028c5bb04406f4e4660 is the first new commit
commit c56f495e833873b8ec94e028c5bb04406f4e4660 (HEAD)
Author: Chengzhong Wu <legendecas@gmail.com>
Date:   Wed Mar 5 12:30:33 2025 +0000

    tools: extract target abseil to abseil.gyp

    Both V8 and perfetto depends on abseil. When perfetto support is
    enabled, V8 also depends on perfetto.

    In order to share abseil between perfetto and V8 targets, and avoid
    cycle dependencies between `v8.gyp` and `perfetto.gyp`, this extracts
    target `abseil` from `v8.gyp` to an independent file `abseil.gyp`.

    PR-URL: https://github.com/nodejs/node/pull/57289
    Backport-PR-URL: https://github.com/nodejs/node/pull/57982
    Refs: https://github.com/nodejs/diagnostics/issues/654
    Reviewed-By: Richard Lau <rlau@redhat.com>
    Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
    Reviewed-By: Michaël Zasso <targos@protonmail.com>

 tools/v8_gypfiles/abseil.gyp | 311 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 tools/v8_gypfiles/d8.gyp     |   2 +-
 tools/v8_gypfiles/v8.gyp     | 323 +++---------------------------------------------------------------------------------------
 3 files changed, 320 insertions(+), 316 deletions(-)
 create mode 100644 tools/v8_gypfiles/abseil.gyp

Initially I was convinced I must have mixed up something but double checked and indeed this commit introduces regression. While it looks like innocent change that cannot be wrong, it's not really equivalent of how abseil target was defined before. Previous target was influenced by includes setting additional defines and compiler flags which are no longer set in new file:

node/tools/v8_gypfiles/v8.gyp

Line 37 in 9774069

'includes': ['toolchain.gypi', 'features.gypi'],

If I include those in abseil target again the issue is resolved:

--- a/tools/v8_gypfiles/abseil.gyp
+++ b/tools/v8_gypfiles/abseil.gyp
@@ -1,4 +1,8 @@
 {
+  'variables': {
+    'V8_ROOT': '../../deps/v8',
+  },
+  'includes': ['toolchain.gypi', 'features.gypi'],
   'targets': [
     {
       'target_name': 'abseil',

No idea which define/flag plays role here though.

cc: @legendecas

[jpalus]

No idea which define/flag plays role here though.

That's the one:

node/tools/v8_gypfiles/toolchain.gypi

Line 599 in 9774069

'-msse2',

[bnoordhuis]

You mean without -sse2 it works okay?

[jpalus]

You mean without -sse2 it works okay?

The other way - with -msse2 it works ok.

Before this commit v8_abseil target was part of v8.gyp which includes toolchain.gypi setting -msse2 for ia32 (works fine).

After this commit abseil target is part of abseil.gyp which no longer includes toolchain.gypi and therefore -msse2 is not set (hangs yarn/node-gyp/npm).

[VlkrS]

Yup, I can confirm that the proposed change to tools/v8_gypfiles/abseil.gyp fixes the issue on OpenBSD, too