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ICE with --alt rustc: WorkerLocal can only be used on the thread pool it was created on #94654
Description
Code
code from glacier /fixed/72554.rs
use std::collections::BTreeSet;
#[derive(Hash)]
pub enum ElemDerived {
A(ElemDerived)
}
pub enum Elem {
Derived(ElemDerived)
}
pub struct Set(BTreeSet<Elem>);
impl Set {
pub fn into_iter(self) -> impl Iterator<Item = Elem> {
self.0.into_iter()
}
}
fn main() {}Meta
rustc --version --verbose:
NOTE this is the alt master rustc, installed via rustup-toolchain-install-master -f -n master -c rustc-dev llvm-tools rust-src clippy rust-analyzer --alt
rustc 1.61.0-nightly (c274e4969 2022-03-05)
binary: rustc
commit-hash: c274e4969f058b1c644243181ece9f829efa7594
commit-date: 2022-03-05
host: x86_64-unknown-linux-gnu
release: 1.61.0-nightly
LLVM version: 14.0.0
Error output
Backtrace
thread '<unnamed>' panicked at 'WorkerLocal can only be used on the thread pool it was created on', /cargo/registry/src/github.com-1ecc6299db9ec823/rustc-rayon-core-0.3.2/src/worker_local.rs:49:17
stack backtrace:
0: 0x7f846729dd2c - std::backtrace_rs::backtrace::libunwind::trace::hd9d6c66ed2138bb0
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
1: 0x7f846729dd2c - std::backtrace_rs::backtrace::trace_unsynchronized::ha4edb04af5a111d2
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7f846729dd2c - std::sys_common::backtrace::_print_fmt::h34bfe6ef54352a7f
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/std/src/sys_common/backtrace.rs:66:5
3: 0x7f846729dd2c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h91638cd7890644b7
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/std/src/sys_common/backtrace.rs:45:22
4: 0x7f84672f7bec - core::fmt::write::h407f77bceaf22b75
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/core/src/fmt/mod.rs:1190:17
5: 0x7f846728e801 - std::io::Write::write_fmt::h85de75cd3cb86034
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/std/src/io/mod.rs:1655:15
6: 0x7f84672a0c65 - std::sys_common::backtrace::_print::h9303e0f315439c4b
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/std/src/sys_common/backtrace.rs:48:5
7: 0x7f84672a0c65 - std::sys_common::backtrace::print::h278cbd6c00b20bf7
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/std/src/sys_common/backtrace.rs:35:9
8: 0x7f84672a0c65 - std::panicking::default_hook::{{closure}}::h66dc8e0c0481f9ac
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/std/src/panicking.rs:295:22
9: 0x7f84672a0908 - std::panicking::default_hook::h3732f22170eb6fcb
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/std/src/panicking.rs:314:9
10: 0x7f8467ae7b71 - rustc_driver[a243c3d9738e9cda]::DEFAULT_HOOK::{closure#0}::{closure#0}
11: 0x7f84672a1501 - std::panicking::rust_panic_with_hook::hfa6a9afb1a6b2eff
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/std/src/panicking.rs:702:17
12: 0x7f846855da2b - std[54a224735ab911a]::panicking::begin_panic::<&str>::{closure#0}
13: 0x7f8468548204 - std[54a224735ab911a]::sys_common::backtrace::__rust_end_short_backtrace::<std[54a224735ab911a]::panicking::begin_panic<&str>::{closure#0}, !>
14: 0x7f84683d2fe9 - std[54a224735ab911a]::panicking::begin_panic::<&str>
15: 0x7f84694a43d0 - rustc_query_system[1506d2c0f1ca8e4e]::query::plumbing::get_query::<rustc_query_impl[5f52c835d70aa024]::queries::generics_of, rustc_query_impl[5f52c835d70aa024]::plumbing::QueryCtxt>
16: 0x7f846a3372db - <rustc_middle[101c9dc362f50b21]::ty::print::pretty::FmtPrinter as rustc_middle[101c9dc362f50b21]::ty::print::Printer>::default_print_def_path
17: 0x7f846a3352a5 - <rustc_middle[101c9dc362f50b21]::ty::print::pretty::FmtPrinter as rustc_middle[101c9dc362f50b21]::ty::print::Printer>::print_def_path
18: 0x7f8468ab7c85 - <rustc_middle[101c9dc362f50b21]::ty::TraitPredicate as rustc_middle[101c9dc362f50b21]::ty::print::Print<rustc_middle[101c9dc362f50b21]::ty::print::pretty::FmtPrinter>>::print
19: 0x7f8468ab813c - <rustc_middle[101c9dc362f50b21]::ty::PredicateKind as rustc_middle[101c9dc362f50b21]::ty::print::Print<rustc_middle[101c9dc362f50b21]::ty::print::pretty::FmtPrinter>>::print
20: 0x7f8468b85b4e - <rustc_middle[101c9dc362f50b21]::ty::print::pretty::FmtPrinter as rustc_middle[101c9dc362f50b21]::ty::print::pretty::PrettyPrinter>::in_binder::<rustc_middle[101c9dc362f50b21]::ty::PredicateKind>
21: 0x7f8468ab88fd - <rustc_middle[101c9dc362f50b21]::ty::Predicate as core[f66f8263def5172a]::fmt::Display>::fmt
22: 0x7f84672f7bec - core::fmt::write::h407f77bceaf22b75
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/core/src/fmt/mod.rs:1190:17
23: 0x7f84672ebf59 - core::fmt::Write::write_fmt::h757a55550f02d0fd
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/core/src/fmt/mod.rs:186:9
24: 0x7f84672ebf59 - alloc::fmt::format::h05c7c4652fba5c0f
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/alloc/src/fmt.rs:597:5
25: 0x7f846847e6ae - <rustc_query_impl[5f52c835d70aa024]::queries::evaluate_obligation as rustc_query_system[1506d2c0f1ca8e4e]::query::config::QueryDescription<rustc_query_impl[5f52c835d70aa024]::plumbing::QueryCtxt>>::describe
26: 0x7f84685a53ba - rustc_query_impl[5f52c835d70aa024]::make_query::evaluate_obligation
27: 0x7f84683405f6 - <rustc_query_system[1506d2c0f1ca8e4e]::query::plumbing::QueryState<rustc_middle[101c9dc362f50b21]::infer::canonical::Canonical<rustc_middle[101c9dc362f50b21]::ty::ParamEnvAnd<rustc_middle[101c9dc362f50b21]::ty::Predicate>>>>::try_collect_active_jobs::<rustc_query_impl[5f52c835d70aa024]::plumbing::QueryCtxt>
28: 0x7f84683f5a78 - <rustc_query_impl[5f52c835d70aa024]::Queries>::try_collect_active_jobs
29: 0x7f84683d33a3 - rustc_query_system[1506d2c0f1ca8e4e]::query::job::deadlock::<rustc_query_impl[5f52c835d70aa024]::plumbing::QueryCtxt>
30: 0x7f8467b81f76 - <scoped_tls[a76d38c46f15ed9e]::ScopedKey<rustc_span[1b916fa4cb305af0]::SessionGlobals>>::set::<rustc_interface[ee304f5e577cf6b9]::util::handle_deadlock::{closure#1}::{closure#0}::{closure#0}, ()>
31: 0x7f8467bcded6 - rustc_rayon_core[dda15808133c3082]::tlv::with::<rustc_middle[101c9dc362f50b21]::ty::context::tls::enter_context<rustc_interface[ee304f5e577cf6b9]::util::handle_deadlock::{closure#1}::{closure#0}, ()>::{closure#0}, ()>
32: 0x7f8467b8401d - std[54a224735ab911a]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[ee304f5e577cf6b9]::util::handle_deadlock::{closure#1}, ()>
33: 0x7f8467b7bc5a - std[54a224735ab911a]::panicking::try::<(), core[f66f8263def5172a]::panic::unwind_safe::AssertUnwindSafe<<std[54a224735ab911a]::thread::Builder>::spawn_unchecked_<rustc_interface[ee304f5e577cf6b9]::util::handle_deadlock::{closure#1}, ()>::{closure#1}::{closure#0}>>
34: 0x7f8467b77dec - <<std[54a224735ab911a]::thread::Builder>::spawn_unchecked_<rustc_interface[ee304f5e577cf6b9]::util::handle_deadlock::{closure#1}, ()>::{closure#1} as core[f66f8263def5172a]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
35: 0x7f84672ab8c3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb7ce1f9a74daab59
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/alloc/src/boxed.rs:1854:9
36: 0x7f84672ab8c3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc28d1f774d95b80d
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/alloc/src/boxed.rs:1854:9
37: 0x7f84672ab8c3 - std::sys::unix::thread::Thread::new::thread_start::h7c8916b17d3c6d45
at /rustc/c274e4969f058b1c644243181ece9f829efa7594/library/std/src/sys/unix/thread.rs:108:17
38: 0x7f84670835c2 - start_thread
39: 0x7f8467108584 - __clone
40: 0x0 - <unknown>
error: internal compiler error: unexpected panic
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
note: rustc 1.61.0-nightly (c274e4969 2022-03-05) running on x86_64-unknown-linux-gnu
query stack during panic:
end of query stack
deadlock handler panicked, aborting process
[1] 859470 IOT instruction (core dumped) ~/.rustup/toolchains/master/bin/rustc ./72554.rs
Activity
[-]ICE with --alt builder: WorkerLocal can only be used on the thread pool it was created on[/-][+]ICE with --alt rustc: WorkerLocal can only be used on the thread pool it was created on[/+]workingjubilee commentedon Mar 8, 2022
This features a parallel-compiler-only bug.
It is a variant of #72554
It is ultimately a blocker for #48685
and might be a blocker for #59667
but itself does not need to be fixed any time soon.
workingjubilee commentedon Mar 9, 2022
Remark from @cjgillot:
SparrowLii commentedon Jun 27, 2022
This is not a problem with the implementation logic of the deadlock handler, but a very hard-to-trace thread scheduling vulnerability. If we add the following non-functional statement in this position of the
try_startfunction, this problem will disappear.let _map = tcx.try_collect_active_jobs().unwrap();Get rid of
tcxin deadlock handler can fix this. I just submited a PR to fix a set of ui test failures, including this issue.Auto merge of rust-lang#98570 - SparrowLii:deadlock, r=cjgillot