TSAN warnings when running multiple user-defined thread pools concurrently #1275
Description
The following test spawns 10 local Rayon thread pools in parallel, and runs a bunch of iterator work on each of them.
#[test]
fn test_concurrent_thread_pools() {
use rayon::iter::{IntoParallelRefIterator, ParallelIterator};
std::thread::scope(|scope| {
// Spawn several Rayon thread pools.
for _ in 0..10 {
scope.spawn(|| {
let rayon_pool = rayon::ThreadPoolBuilder::new()
.num_threads(4)
.build()
.unwrap();
// Do some work on each pool.
rayon_pool.install(|| {
// Doesn't really matter. Just make sure each thread pool has enough work.
const INPUT_LEN: u64 = 100_000;
// Doesn't matter much either, but more iterations mean higher chances of
// TSAN warnings.
for _ in 0..10 {
let input = (0..=INPUT_LEN).collect::<Vec<u64>>();
let sum = input.par_iter().sum::<u64>();
assert_eq!(sum, INPUT_LEN * (INPUT_LEN + 1) / 2);
}
});
});
}
});
}On my machine, it reliably triggers TSAN warnings about data races, all related to crossbeam_epoch (crossbeam_epoch::internal::Global::try_advance, crossbeam_epoch::internal::Global::collect, <T as crossbeam_epoch::atomic::Pointable>::drop).
System details:
$ cargo +nightly --version --verbose
cargo 1.92.0-nightly (801d9b498 2025-10-04)
release: 1.92.0-nightly
commit-hash: 801d9b4981dd07e3aecdca1ab86834c13615737e
commit-date: 2025-10-04
host: x86_64-unknown-linux-gnuTSAN invocation:
export RUSTFLAGS="-D warnings -C debug_assertions -Zsanitizer=thread"
cargo +nightly test --release -Zbuild-std --target=x86_64-unknown-linux-gnuFull TSAN warnings with stack traces:
running 1 test
==================
WARNING: ThreadSanitizer: data race (pid=1852202)
Write of size 8 at 0x72740002ee00 by thread T19:
#0 free ??:? (paralight-b12df329bbbd1876+0x34be7a) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#1 __rustc::__rdl_dealloc std.143dd04dfe943471-cgu.04:? (paralight-b12df329bbbd1876+0xed1684) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#2 <T as crossbeam_epoch::atomic::Pointable>::drop crossbeam_epoch.32bd66ef788b0d3c-cgu.0:? (paralight-b12df329bbbd1876+0xe9a3f3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#3 crossbeam_epoch::deferred::Deferred::new::call crossbeam_epoch.32bd66ef788b0d3c-cgu.1:? (paralight-b12df329bbbd1876+0xe9b9ad) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#4 crossbeam_epoch::internal::Global::collect ??:? (paralight-b12df329bbbd1876+0xe99b94) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#5 crossbeam_epoch::default::pin::{{closure}} rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe8a78e) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#6 crossbeam_epoch::default::with_handle rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe8a4e7) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#7 crossbeam_deque::deque::Stealer<T>::steal rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe898dd) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#8 rayon_core::registry::WorkerThread::find_work rayon_core.400168e8efdf748d-cgu.00:? (paralight-b12df329bbbd1876+0xe8297a) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#9 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe82373) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#10 rayon_core::registry::ThreadBuilder::run ??:? (paralight-b12df329bbbd1876+0xe83383) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#11 std::sys::backtrace::__rust_begin_short_backtrace ??:? (paralight-b12df329bbbd1876+0xe95daf) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#12 std::panicking::catch_unwind::do_call rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe9190c) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#13 __rust_try.llvm.1073886105133930615 rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe93921) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#14 core::ops::function::FnOnce::call_once{{vtable.shim}} rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe91ad4) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#15 <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once std.143dd04dfe943471-cgu.09:? (paralight-b12df329bbbd1876+0xf0c788) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#16 std::sys::thread::unix::Thread::new::thread_start std.143dd04dfe943471-cgu.15:? (paralight-b12df329bbbd1876+0xf50e49) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
Previous atomic read of size 8 at 0x72740002ee00 by thread T35:
#0 crossbeam_epoch::internal::Global::try_advance crossbeam_epoch.32bd66ef788b0d3c-cgu.0:? (paralight-b12df329bbbd1876+0xe99705) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#1 crossbeam_epoch::internal::Global::collect ??:? (paralight-b12df329bbbd1876+0xe9999e) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#2 crossbeam_epoch::default::pin::{{closure}} rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe8a78e) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#3 crossbeam_epoch::default::with_handle rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe8a4e7) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#4 crossbeam_deque::deque::Stealer<T>::steal rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe898dd) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#5 core::ops::function::impls::<impl core::ops::function::FnMut<A> for &mut F>::call_mut rayon_core.400168e8efdf748d-cgu.07:? (paralight-b12df329bbbd1876+0xe95f97) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#6 <core::iter::adapters::chain::Chain<A,B> as core::iter::traits::iterator::Iterator>::try_fold rayon_core.400168e8efdf748d-cgu.03:? (paralight-b12df329bbbd1876+0xe8dc91) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#7 rayon_core::registry::WorkerThread::find_work rayon_core.400168e8efdf748d-cgu.00:? (paralight-b12df329bbbd1876+0xe82bf2) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#8 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe82373) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#9 rayon_core::registry::ThreadBuilder::run ??:? (paralight-b12df329bbbd1876+0xe83383) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#10 std::sys::backtrace::__rust_begin_short_backtrace ??:? (paralight-b12df329bbbd1876+0xe95daf) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#11 std::panicking::catch_unwind::do_call rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe9190c) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#12 __rust_try.llvm.1073886105133930615 rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe93921) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#13 core::ops::function::FnOnce::call_once{{vtable.shim}} rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe91ad4) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#14 <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once std.143dd04dfe943471-cgu.09:? (paralight-b12df329bbbd1876+0xf0c788) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#15 std::sys::thread::unix::Thread::new::thread_start std.143dd04dfe943471-cgu.15:? (paralight-b12df329bbbd1876+0xf50e49) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
Thread T19 (tid=1852222, running) created by thread T11 at:
#0 pthread_create ??:? (paralight-b12df329bbbd1876+0x34d22a) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#1 std::sys::thread::unix::Thread::new ??:? (paralight-b12df329bbbd1876+0xf51394) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#2 std::thread::Builder::spawn_unchecked rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe91109) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#3 <rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn ??:? (paralight-b12df329bbbd1876+0xe88113) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#4 rayon_core::registry::Registry::new paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x76988d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#5 rayon_core::thread_pool::ThreadPool::build paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xb999a3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#6 std::sys::backtrace::__rust_begin_short_backtrace paralight.ca2604a9752bae31-cgu.14:? (paralight-b12df329bbbd1876+0xb84c43) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#7 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xba5bff) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#8 __rust_try.llvm.2012152785340314153 paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xbb6371) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#9 core::ops::function::FnOnce::call_once{{vtable.shim}} paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xba7871) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#10 <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once std.143dd04dfe943471-cgu.09:? (paralight-b12df329bbbd1876+0xf0c788) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#11 std::sys::thread::unix::Thread::new::thread_start std.143dd04dfe943471-cgu.15:? (paralight-b12df329bbbd1876+0xf50e49) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
Thread T35 (tid=1852238, running) created by thread T24 at:
#0 pthread_create ??:? (paralight-b12df329bbbd1876+0x34d22a) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#1 std::sys::thread::unix::Thread::new ??:? (paralight-b12df329bbbd1876+0xf51394) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#2 std::thread::Builder::spawn_unchecked rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe91109) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#3 <rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn ??:? (paralight-b12df329bbbd1876+0xe88113) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#4 rayon_core::registry::Registry::new paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x76988d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#5 rayon_core::thread_pool::ThreadPool::build paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xb999a3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#6 std::sys::backtrace::__rust_begin_short_backtrace paralight.ca2604a9752bae31-cgu.14:? (paralight-b12df329bbbd1876+0xb84c43) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#7 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xba5bff) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#8 __rust_try.llvm.2012152785340314153 paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xbb6371) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#9 core::ops::function::FnOnce::call_once{{vtable.shim}} paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xba7871) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#10 <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once std.143dd04dfe943471-cgu.09:? (paralight-b12df329bbbd1876+0xf0c788) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#11 std::sys::thread::unix::Thread::new::thread_start std.143dd04dfe943471-cgu.15:? (paralight-b12df329bbbd1876+0xf50e49) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
SUMMARY: ThreadSanitizer: data race ??:? in free
==================
==================
WARNING: ThreadSanitizer: data race (pid=1852202)
Write of size 8 at 0x7274001ef000 by thread T8:
#0 free ??:? (paralight-b12df329bbbd1876+0x34be7a) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#1 __rustc::__rdl_dealloc std.143dd04dfe943471-cgu.04:? (paralight-b12df329bbbd1876+0xed1684) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#2 <T as crossbeam_epoch::atomic::Pointable>::drop crossbeam_epoch.32bd66ef788b0d3c-cgu.0:? (paralight-b12df329bbbd1876+0xe9a663) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#3 crossbeam_epoch::deferred::Deferred::new::call crossbeam_epoch.32bd66ef788b0d3c-cgu.1:? (paralight-b12df329bbbd1876+0xe9bb1d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#4 crossbeam_epoch::internal::Global::collect ??:? (paralight-b12df329bbbd1876+0xe99b94) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#5 crossbeam_epoch::default::pin::{{closure}} rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe8a78e) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#6 crossbeam_epoch::default::with_handle rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe8a4e7) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#7 crossbeam_deque::deque::Stealer<T>::steal rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe898dd) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#8 rayon_core::registry::WorkerThread::find_work rayon_core.400168e8efdf748d-cgu.00:? (paralight-b12df329bbbd1876+0xe8297a) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#9 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe82373) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#10 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707d2b) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#11 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#12 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#13 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x4696f3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#14 __rust_try paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x595631) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#15 <rayon_core::job::StackJob<L,F,R> as rayon_core::job::Job>::execute paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x55ca55) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#16 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe824c9) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#17 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707d2b) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#18 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#19 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#20 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x4696f3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#21 __rust_try paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x595631) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#22 <rayon_core::job::StackJob<L,F,R> as rayon_core::job::Job>::execute paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x55ca55) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#23 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe824c9) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#24 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707d2b) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#25 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#26 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#27 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x4696f3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#28 __rust_try paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x595631) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#29 <rayon_core::job::StackJob<L,F,R> as rayon_core::job::Job>::execute paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x55ca55) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#30 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe824c9) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#31 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707d2b) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#32 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#33 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#34 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x7cf72b) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#35 __rust_try paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x7d1289) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#36 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707a47) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#37 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#38 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#39 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x7cf72b) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#40 __rust_try paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x7d1289) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#41 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707a47) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#42 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#43 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#44 rayon_core::thread_pool::ThreadPool::install::{{closure}} paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x3d9fad) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#45 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x3ff2ca) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#46 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x3ff2ca) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#47 __rust_try paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x595631) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#48 <rayon_core::job::StackJob<L,F,R> as rayon_core::job::Job>::execute paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x4ddc3e) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#49 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe824c9) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#50 rayon_core::registry::ThreadBuilder::run ??:? (paralight-b12df329bbbd1876+0xe83383) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#51 std::sys::backtrace::__rust_begin_short_backtrace ??:? (paralight-b12df329bbbd1876+0xe95daf) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#52 std::panicking::catch_unwind::do_call rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe9190c) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#53 __rust_try.llvm.1073886105133930615 rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe93921) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#54 core::ops::function::FnOnce::call_once{{vtable.shim}} rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe91ad4) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#55 <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once std.143dd04dfe943471-cgu.09:? (paralight-b12df329bbbd1876+0xf0c788) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#56 std::sys::thread::unix::Thread::new::thread_start std.143dd04dfe943471-cgu.15:? (paralight-b12df329bbbd1876+0xf50e49) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
Previous read of size 8 at 0x7274001ef000 by thread T19:
#0 crossbeam_epoch::internal::Global::collect ??:? (paralight-b12df329bbbd1876+0xe99ace) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#1 crossbeam_epoch::default::pin::{{closure}} rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe8a78e) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#2 crossbeam_epoch::default::with_handle rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe8a4e7) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#3 crossbeam_deque::deque::Stealer<T>::steal rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe898dd) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#4 rayon_core::registry::WorkerThread::find_work rayon_core.400168e8efdf748d-cgu.00:? (paralight-b12df329bbbd1876+0xe8297a) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#5 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe82373) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#6 rayon_core::registry::ThreadBuilder::run ??:? (paralight-b12df329bbbd1876+0xe83383) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#7 std::sys::backtrace::__rust_begin_short_backtrace ??:? (paralight-b12df329bbbd1876+0xe95daf) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#8 std::panicking::catch_unwind::do_call rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe9190c) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#9 __rust_try.llvm.1073886105133930615 rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe93921) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#10 core::ops::function::FnOnce::call_once{{vtable.shim}} rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe91ad4) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#11 <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once std.143dd04dfe943471-cgu.09:? (paralight-b12df329bbbd1876+0xf0c788) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#12 std::sys::thread::unix::Thread::new::thread_start std.143dd04dfe943471-cgu.15:? (paralight-b12df329bbbd1876+0xf50e49) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
Thread T8 (tid=1852211, running) created by thread T5 at:
#0 pthread_create ??:? (paralight-b12df329bbbd1876+0x34d22a) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#1 std::sys::thread::unix::Thread::new ??:? (paralight-b12df329bbbd1876+0xf51394) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#2 std::thread::Builder::spawn_unchecked rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe91109) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#3 <rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn ??:? (paralight-b12df329bbbd1876+0xe88113) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#4 rayon_core::registry::Registry::new paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x76988d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#5 rayon_core::thread_pool::ThreadPool::build paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xb999a3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#6 std::sys::backtrace::__rust_begin_short_backtrace paralight.ca2604a9752bae31-cgu.14:? (paralight-b12df329bbbd1876+0xb84c43) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#7 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xba5bff) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#8 __rust_try.llvm.2012152785340314153 paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xbb6371) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#9 core::ops::function::FnOnce::call_once{{vtable.shim}} paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xba7871) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#10 <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once std.143dd04dfe943471-cgu.09:? (paralight-b12df329bbbd1876+0xf0c788) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#11 std::sys::thread::unix::Thread::new::thread_start std.143dd04dfe943471-cgu.15:? (paralight-b12df329bbbd1876+0xf50e49) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
Thread T19 (tid=1852222, running) created by thread T11 at:
#0 pthread_create ??:? (paralight-b12df329bbbd1876+0x34d22a) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#1 std::sys::thread::unix::Thread::new ??:? (paralight-b12df329bbbd1876+0xf51394) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#2 std::thread::Builder::spawn_unchecked rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe91109) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#3 <rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn ??:? (paralight-b12df329bbbd1876+0xe88113) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#4 rayon_core::registry::Registry::new paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x76988d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#5 rayon_core::thread_pool::ThreadPool::build paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xb999a3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#6 std::sys::backtrace::__rust_begin_short_backtrace paralight.ca2604a9752bae31-cgu.14:? (paralight-b12df329bbbd1876+0xb84c43) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#7 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xba5bff) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#8 __rust_try.llvm.2012152785340314153 paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xbb6371) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#9 core::ops::function::FnOnce::call_once{{vtable.shim}} paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xba7871) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#10 <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once std.143dd04dfe943471-cgu.09:? (paralight-b12df329bbbd1876+0xf0c788) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#11 std::sys::thread::unix::Thread::new::thread_start std.143dd04dfe943471-cgu.15:? (paralight-b12df329bbbd1876+0xf50e49) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
SUMMARY: ThreadSanitizer: data race ??:? in free
==================
==================
WARNING: ThreadSanitizer: data race (pid=1852202)
Write of size 8 at 0x727400180600 by thread T44:
#0 free ??:? (paralight-b12df329bbbd1876+0x34be7a) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#1 __rustc::__rdl_dealloc std.143dd04dfe943471-cgu.04:? (paralight-b12df329bbbd1876+0xed1684) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#2 <T as crossbeam_epoch::atomic::Pointable>::drop crossbeam_epoch.32bd66ef788b0d3c-cgu.0:? (paralight-b12df329bbbd1876+0xe9a663) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#3 crossbeam_epoch::deferred::Deferred::new::call crossbeam_epoch.32bd66ef788b0d3c-cgu.1:? (paralight-b12df329bbbd1876+0xe9bb1d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#4 crossbeam_epoch::internal::Global::collect ??:? (paralight-b12df329bbbd1876+0xe99b94) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#5 crossbeam_epoch::default::pin::{{closure}} rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe8a78e) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#6 crossbeam_epoch::default::with_handle rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe8a4e7) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#7 crossbeam_deque::deque::Stealer<T>::steal rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe898dd) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#8 core::ops::function::impls::<impl core::ops::function::FnMut<A> for &mut F>::call_mut rayon_core.400168e8efdf748d-cgu.07:? (paralight-b12df329bbbd1876+0xe95f97) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#9 <core::iter::adapters::chain::Chain<A,B> as core::iter::traits::iterator::Iterator>::try_fold rayon_core.400168e8efdf748d-cgu.03:? (paralight-b12df329bbbd1876+0xe8dc91) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#10 rayon_core::registry::WorkerThread::find_work rayon_core.400168e8efdf748d-cgu.00:? (paralight-b12df329bbbd1876+0xe82bf2) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#11 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe82373) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#12 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707d2b) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#13 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#14 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#15 rayon_core::job::StackJob<L,F,R>::run_inline paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x3da3f2) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#16 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707bb5) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#17 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#18 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#19 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x4696f3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#20 __rust_try paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x595631) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#21 <rayon_core::job::StackJob<L,F,R> as rayon_core::job::Job>::execute paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x55ca55) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#22 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe824c9) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#23 rayon_core::registry::ThreadBuilder::run ??:? (paralight-b12df329bbbd1876+0xe83383) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#24 std::sys::backtrace::__rust_begin_short_backtrace ??:? (paralight-b12df329bbbd1876+0xe95daf) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#25 std::panicking::catch_unwind::do_call rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe9190c) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#26 __rust_try.llvm.1073886105133930615 rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe93921) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#27 core::ops::function::FnOnce::call_once{{vtable.shim}} rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe91ad4) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#28 <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once std.143dd04dfe943471-cgu.09:? (paralight-b12df329bbbd1876+0xf0c788) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#29 std::sys::thread::unix::Thread::new::thread_start std.143dd04dfe943471-cgu.15:? (paralight-b12df329bbbd1876+0xf50e49) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
Previous read of size 8 at 0x727400180600 by thread T8:
#0 crossbeam_epoch::internal::Global::collect ??:? (paralight-b12df329bbbd1876+0xe99ace) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#1 crossbeam_epoch::default::pin::{{closure}} rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe8a78e) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#2 crossbeam_epoch::default::with_handle rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe8a4e7) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#3 crossbeam_deque::deque::Stealer<T>::steal rayon_core.400168e8efdf748d-cgu.01:? (paralight-b12df329bbbd1876+0xe898dd) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#4 rayon_core::registry::WorkerThread::find_work rayon_core.400168e8efdf748d-cgu.00:? (paralight-b12df329bbbd1876+0xe8297a) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#5 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe82373) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#6 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707d2b) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#7 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#8 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#9 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x4696f3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#10 __rust_try paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x595631) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#11 <rayon_core::job::StackJob<L,F,R> as rayon_core::job::Job>::execute paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x55ca55) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#12 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe824c9) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#13 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707d2b) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#14 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#15 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#16 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x4696f3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#17 __rust_try paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x595631) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#18 <rayon_core::job::StackJob<L,F,R> as rayon_core::job::Job>::execute paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x55ca55) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#19 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe824c9) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#20 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707d2b) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#21 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#22 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#23 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x4696f3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#24 __rust_try paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x595631) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#25 <rayon_core::job::StackJob<L,F,R> as rayon_core::job::Job>::execute paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x55ca55) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#26 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe824c9) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#27 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707d2b) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#28 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#29 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#30 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x7cf72b) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#31 __rust_try paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x7d1289) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#32 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707a47) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#33 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#34 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#35 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x7cf72b) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#36 __rust_try paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x7d1289) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#37 rayon_core::join::join_context::{{closure}} paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x707a47) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#38 rayon_core::registry::in_worker paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x79f88d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#39 rayon::iter::plumbing::bridge_producer_consumer::helper paralight.ca2604a9752bae31-cgu.12:? (paralight-b12df329bbbd1876+0xb673ab) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#40 rayon_core::thread_pool::ThreadPool::install::{{closure}} paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x3d9fad) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#41 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x3ff2ca) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#42 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x3ff2ca) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#43 __rust_try paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x595631) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#44 <rayon_core::job::StackJob<L,F,R> as rayon_core::job::Job>::execute paralight.ca2604a9752bae31-cgu.00:? (paralight-b12df329bbbd1876+0x4ddc3e) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#45 rayon_core::registry::WorkerThread::wait_until_cold ??:? (paralight-b12df329bbbd1876+0xe824c9) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#46 rayon_core::registry::ThreadBuilder::run ??:? (paralight-b12df329bbbd1876+0xe83383) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#47 std::sys::backtrace::__rust_begin_short_backtrace ??:? (paralight-b12df329bbbd1876+0xe95daf) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#48 std::panicking::catch_unwind::do_call rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe9190c) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#49 __rust_try.llvm.1073886105133930615 rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe93921) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#50 core::ops::function::FnOnce::call_once{{vtable.shim}} rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe91ad4) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#51 <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once std.143dd04dfe943471-cgu.09:? (paralight-b12df329bbbd1876+0xf0c788) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#52 std::sys::thread::unix::Thread::new::thread_start std.143dd04dfe943471-cgu.15:? (paralight-b12df329bbbd1876+0xf50e49) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
Thread T44 (tid=1852247, running) created by thread T11 at:
#0 pthread_create ??:? (paralight-b12df329bbbd1876+0x34d22a) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#1 std::sys::thread::unix::Thread::new ??:? (paralight-b12df329bbbd1876+0xf51394) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#2 std::thread::Builder::spawn_unchecked rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe91109) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#3 <rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn ??:? (paralight-b12df329bbbd1876+0xe88113) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#4 rayon_core::registry::Registry::new paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x76988d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#5 rayon_core::thread_pool::ThreadPool::build paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xb999a3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#6 std::sys::backtrace::__rust_begin_short_backtrace paralight.ca2604a9752bae31-cgu.14:? (paralight-b12df329bbbd1876+0xb84c43) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#7 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xba5bff) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#8 __rust_try.llvm.2012152785340314153 paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xbb6371) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#9 core::ops::function::FnOnce::call_once{{vtable.shim}} paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xba7871) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#10 <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once std.143dd04dfe943471-cgu.09:? (paralight-b12df329bbbd1876+0xf0c788) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#11 std::sys::thread::unix::Thread::new::thread_start std.143dd04dfe943471-cgu.15:? (paralight-b12df329bbbd1876+0xf50e49) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
Thread T8 (tid=1852211, running) created by thread T5 at:
#0 pthread_create ??:? (paralight-b12df329bbbd1876+0x34d22a) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#1 std::sys::thread::unix::Thread::new ??:? (paralight-b12df329bbbd1876+0xf51394) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#2 std::thread::Builder::spawn_unchecked rayon_core.400168e8efdf748d-cgu.05:? (paralight-b12df329bbbd1876+0xe91109) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#3 <rayon_core::registry::DefaultSpawn as rayon_core::registry::ThreadSpawn>::spawn ??:? (paralight-b12df329bbbd1876+0xe88113) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#4 rayon_core::registry::Registry::new paralight.ca2604a9752bae31-cgu.04:? (paralight-b12df329bbbd1876+0x76988d) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#5 rayon_core::thread_pool::ThreadPool::build paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xb999a3) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#6 std::sys::backtrace::__rust_begin_short_backtrace paralight.ca2604a9752bae31-cgu.14:? (paralight-b12df329bbbd1876+0xb84c43) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#7 std::panicking::catch_unwind::do_call paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xba5bff) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#8 __rust_try.llvm.2012152785340314153 paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xbb6371) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#9 core::ops::function::FnOnce::call_once{{vtable.shim}} paralight.ca2604a9752bae31-cgu.15:? (paralight-b12df329bbbd1876+0xba7871) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#10 <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once std.143dd04dfe943471-cgu.09:? (paralight-b12df329bbbd1876+0xf0c788) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
#11 std::sys::thread::unix::Thread::new::thread_start std.143dd04dfe943471-cgu.15:? (paralight-b12df329bbbd1876+0xf50e49) (BuildId: 632355c6cdc6733a800d61fbdb55837a82c0d6c2)
SUMMARY: ThreadSanitizer: data race ??:? in free
==================
test test_concurrent_thread_pools ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.30s
ThreadSanitizer: reported 3 warnings
error: test failed, to rerun pass `--lib`
The stack traces don't look related to the previously filed bugs (#812, #1212) and appear related specifically to spawning multiple Rayon thread pools and using them at the same time.
Note: Why would anyone want to spawn multiple Rayon pools and use them at the same time?
- This is what happens when running a test suite with
cargo testwhere each test case is creating its own thread pool (e.g. https://github.com/gendx/paralight/blob/main/src/lib.rs). - In a real-world program, there can be several components that independently spawn their own thread pool.