2266232 – segfaults in LLVM compiling trunk Rust crate

Bug 2266232 - segfaults in LLVM compiling trunk Rust crate

Summary: segfaults in LLVM compiling trunk Rust crate

Keywords:
Status:	CLOSED EOL
Alias:	None
Product:	Fedora
Classification:	Fedora
Component:	llvm17
Sub Component:
Version:	42
Hardware:	i686
OS:	Linux
Priority:	unspecified
Severity:	urgent
Target Milestone:	---
Assignee:	Tom Stellard
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2024-02-27 08:14 UTC by Jens Reimann
Modified:	2026-06-08 15:46 UTC (History)
CC List:	2 users (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:	2026-06-08 15:46:34 UTC
Type:	---
Embargoed:
Dependent Products:

Attachments	(Terms of Use)

Description Jens Reimann 2024-02-27 08:14:30 UTC

Compiling the `trunk` (Rust) crate on i686 segfaults in LLVM:

```
     Running `/usr/bin/rustc --crate-name trunk --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C opt-level=3 -C panic=abort -C lto=fat -C codegen-units=1 -C debuginfo=2 -C metadata=d3ec747c4cc21fae -C extra-filename=-d3ec747c4cc21fae --out-dir /builddir/build/BUILD/trunk-0.18.8/target/rpm/deps -L dependency=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps --extern ansi_term=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libansi_term-c9a74fb1c5a33450.rlib --extern anyhow=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libanyhow-dd048082dae418bb.rlib --extern async_recursion=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libasync_recursion-c69e2e329310a5a4.so --extern axum=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libaxum-ac356d2aa4feb267.rlib --extern axum_server=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libaxum_server-4d9001becb5ce6f6.rlib --extern base64=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libbase64-888a08a1d17b3136.rlib --extern bytes=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libbytes-1942756fbc7ff3f5.rlib --extern cargo_lock=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libcargo_lock-3bedda8dcf2bd92e.rlib --extern cargo_metadata=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libcargo_metadata-13d0b92ddcd9dc1d.rlib --extern clap=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libclap-208af58cda91ff8e.rlib --extern console=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libconsole-be11c805d7b150ab.rlib --extern css_minify=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libcss_minify-6b9f55f91bd0178a.rlib --extern directories=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libdirectories-8da71472ea013b8f.rlib --extern dunce=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libdunce-4105c42cb1567e0a.rlib --extern envy=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libenvy-fcec93522e880756.rlib --extern flate2=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libflate2-c43669308ba55796.rlib --extern futures_util=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libfutures_util-4d4deb3e4637bb82.rlib --extern hex=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libhex-c474070b6b59f573.rlib --extern htmlescape=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libhtmlescape-061ab0d2a39d69b7.rlib --extern http_body=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libhttp_body-2d1e45a2614d06ca.rlib --extern humantime=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libhumantime-278d9379cde96194.rlib --extern humantime_serde=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libhumantime_serde-db7d2ea4d7a0a7dd.rlib --extern hyper=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libhyper-34b7f79d93066f32.rlib --extern lightningcss=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/liblightningcss-fb29360f52959467.rlib --extern local_ip_address=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/liblocal_ip_address-3113cdb67a5dff42.rlib --extern mime_guess=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libmime_guess-be195c8a943faa19.rlib --extern minify_html=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libminify_html-76ef26fd2ed499ab.rlib --extern minify_js=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libminify_js-361bcf99267f5936.rlib --extern nipper=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libnipper-879431096c30b7ee.rlib --extern notify=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libnotify-e1a4be633bd8a41d.rlib --extern notify_debouncer_full=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libnotify_debouncer_full-970b1992d2b22302.rlib --extern once_cell=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libonce_cell-7cd748c2563a78c0.rlib --extern open=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libopen-739254795e6c5ee7.rlib --extern oxipng=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/liboxipng-97b9886d7eefad2d.rlib --extern parking_lot=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libparking_lot-1f4c5b39f1a989bf.rlib --extern remove_dir_all=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libremove_dir_all-ca007ee62736d362.rlib --extern reqwest=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libreqwest-2fd2027d4a7e1435.rlib --extern seahash=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libseahash-aa4788848059bd91.rlib --extern serde=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libserde-0e3c22b8a86f10a3.rlib --extern serde_json=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libserde_json-3da9734373291be3.rlib --extern sha2=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libsha2-af789abc53e545a1.rlib --extern strum=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libstrum-6aad415c38f72078.rlib --extern tar=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtar-90b7c93a92264b36.rlib --extern thiserror=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libthiserror-bccc0d9083114dce.rlib --extern tokio=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtokio-99e61a37c268ec96.rlib --extern tokio_stream=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtokio_stream-5fd73724da08b397.rlib --extern tokio_tungstenite=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtokio_tungstenite-8606b84c9adc7236.rlib --extern toml=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtoml-0edc7c99832fdd13.rlib --extern tower_http=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtower_http-2406bf889da5a646.rlib --extern tracing=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtracing-4f8ee5d8ef85a130.rlib --extern tracing_subscriber=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtracing_subscriber-c81d2f014e955f9d.rlib --extern which=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libwhich-b5cddcb173f53f82.rlib --extern zip=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libzip-22daa20d7a6a3f37.rlib -Copt-level=3 -Cdebuginfo=2 -Ccodegen-units=1 -Cstrip=none -Clink-arg=-Wl,-z,relro -Clink-arg=-Wl,-z,now -Clink-arg=-specs=/usr/lib/rpm/redhat/redhat-package-notes --cap-lints=warn -L native=/builddir/build/BUILD/trunk-0.18.8/target/rpm/build/ring-d8d3c8e8e3c88903/out -L native=/builddir/build/BUILD/trunk-0.18.8/target/rpm/build/libdeflate-sys-966c87b836b83231/out/lib -L native=/builddir/build/BUILD/trunk-0.18.8/target/rpm/build/bzip2-sys-65b4b2d68c93585b/out/lib -L native=/builddir/build/BUILD/trunk-0.18.8/target/rpm/build/zstd-sys-b01e8ba32de86af3/out`
error: rustc interrupted by SIGSEGV, printing backtrace
/usr/lib/librustc_driver-52ec46fe17a0f019.so(+0x578c47)[0xf3778c47]
linux-gate.so.1(__kernel_sigreturn+0x0)[0xf7ef25a0]
/usr/lib/libLLVM-17.so(+0xcd8b20)[0xec6d8b20]
/usr/lib/libLLVM-17.so(+0xcd87fb)[0xec6d87fb]
/usr/lib/libLLVM-17.so(_ZN4llvm15ValueHandleBase14ValueIsDeletedEPNS_5ValueE+0x121)[0xec1f71c1]
/usr/lib/libLLVM-17.so(_ZN4llvm5ValueD1Ev+0x28)[0xec1f74a8]
/usr/lib/libLLVM-17.so(_ZN4llvm12GlobalObjectD1Ev+0x44)[0xec157034]
/usr/lib/libLLVM-17.so(+0x7c1ddd)[0xec1c1ddd]
/usr/lib/libLLVM-17.so(_ZN4llvm6ModuleD1Ev+0x64)[0xec1bd634]
/usr/lib/libLLVM-17.so(_ZN4llvm15LLVMContextImplD1Ev+0xb6)[0xec1867b6]
/usr/lib/libLLVM-17.so(_ZN4llvm11LLVMContextD1Ev+0x28)[0xec184768]
/usr/lib/libLLVM-17.so(LLVMContextDispose+0x26)[0xec0b6216]
/usr/lib/librustc_driver-52ec46fe17a0f019.so(+0x7eb746)[0xf39eb746]
/usr/lib/librustc_driver-52ec46fe17a0f019.so(_RNvXs1_Cs5wJj2IwsfEc_18rustc_codegen_llvmNtB5_18LlvmCodegenBackendNtNtNtCs2Ot5weHMREJ_17rustc_codegen_ssa6traits5write19WriteBackendMethods11run_fat_lto+0x30e9)[0xf3a04809]
/usr/lib/librustc_driver-52ec46fe17a0f019.so(+0x8f257a)[0xf3af257a]
/usr/lib/librustc_driver-52ec46fe17a0f019.so(+0x8f887a)[0xf3af887a]
/usr/lib/libstd-3ea11b8b961b5e64.so(rust_metadata_std_58d9b43584c2b021+0x7fe5c)[0xf313ae5c]
/usr/lib/libc.so.6(+0x92923)[0xf2f54923]
/usr/lib/libc.so.6(+0x117d88)[0xf2fd9d88]
note: we would appreciate a report at https://github.com/rust-lang/rust
error: could not compile `trunk` (bin "trunk")
Caused by:
  process didn't exit successfully: `/usr/bin/rustc --crate-name trunk --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C opt-level=3 -C panic=abort -C lto=fat -C codegen-units=1 -C debuginfo=2 -C metadata=d3ec747c4cc21fae -C extra-filename=-d3ec747c4cc21fae --out-dir /builddir/build/BUILD/trunk-0.18.8/target/rpm/deps -L dependency=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps --extern ansi_term=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libansi_term-c9a74fb1c5a33450.rlib --extern anyhow=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libanyhow-dd048082dae418bb.rlib --extern async_recursion=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libasync_recursion-c69e2e329310a5a4.so --extern axum=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libaxum-ac356d2aa4feb267.rlib --extern axum_server=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libaxum_server-4d9001becb5ce6f6.rlib --extern base64=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libbase64-888a08a1d17b3136.rlib --extern bytes=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libbytes-1942756fbc7ff3f5.rlib --extern cargo_lock=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libcargo_lock-3bedda8dcf2bd92e.rlib --extern cargo_metadata=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libcargo_metadata-13d0b92ddcd9dc1d.rlib --extern clap=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libclap-208af58cda91ff8e.rlib --extern console=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libconsole-be11c805d7b150ab.rlib --extern css_minify=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libcss_minify-6b9f55f91bd0178a.rlib --extern directories=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libdirectories-8da71472ea013b8f.rlib --extern dunce=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libdunce-4105c42cb1567e0a.rlib --extern envy=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libenvy-fcec93522e880756.rlib --extern flate2=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libflate2-c43669308ba55796.rlib --extern futures_util=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libfutures_util-4d4deb3e4637bb82.rlib --extern hex=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libhex-c474070b6b59f573.rlib --extern htmlescape=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libhtmlescape-061ab0d2a39d69b7.rlib --extern http_body=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libhttp_body-2d1e45a2614d06ca.rlib --extern humantime=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libhumantime-278d9379cde96194.rlib --extern humantime_serde=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libhumantime_serde-db7d2ea4d7a0a7dd.rlib --extern hyper=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libhyper-34b7f79d93066f32.rlib --extern lightningcss=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/liblightningcss-fb29360f52959467.rlib --extern local_ip_address=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/liblocal_ip_address-3113cdb67a5dff42.rlib --extern mime_guess=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libmime_guess-be195c8a943faa19.rlib --extern minify_html=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libminify_html-76ef26fd2ed499ab.rlib --extern minify_js=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libminify_js-361bcf99267f5936.rlib --extern nipper=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libnipper-879431096c30b7ee.rlib --extern notify=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libnotify-e1a4be633bd8a41d.rlib --extern notify_debouncer_full=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libnotify_debouncer_full-970b1992d2b22302.rlib --extern once_cell=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libonce_cell-7cd748c2563a78c0.rlib --extern open=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libopen-739254795e6c5ee7.rlib --extern oxipng=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/liboxipng-97b9886d7eefad2d.rlib --extern parking_lot=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libparking_lot-1f4c5b39f1a989bf.rlib --extern remove_dir_all=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libremove_dir_all-ca007ee62736d362.rlib --extern reqwest=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libreqwest-2fd2027d4a7e1435.rlib --extern seahash=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libseahash-aa4788848059bd91.rlib --extern serde=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libserde-0e3c22b8a86f10a3.rlib --extern serde_json=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libserde_json-3da9734373291be3.rlib --extern sha2=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libsha2-af789abc53e545a1.rlib --extern strum=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libstrum-6aad415c38f72078.rlib --extern tar=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtar-90b7c93a92264b36.rlib --extern thiserror=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libthiserror-bccc0d9083114dce.rlib --extern tokio=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtokio-99e61a37c268ec96.rlib --extern tokio_stream=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtokio_stream-5fd73724da08b397.rlib --extern tokio_tungstenite=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtokio_tungstenite-8606b84c9adc7236.rlib --extern toml=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtoml-0edc7c99832fdd13.rlib --extern tower_http=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtower_http-2406bf889da5a646.rlib --extern tracing=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtracing-4f8ee5d8ef85a130.rlib --extern tracing_subscriber=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libtracing_subscriber-c81d2f014e955f9d.rlib --extern which=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libwhich-b5cddcb173f53f82.rlib --extern zip=/builddir/build/BUILD/trunk-0.18.8/target/rpm/deps/libzip-22daa20d7a6a3f37.rlib -Copt-level=3 -Cdebuginfo=2 -Ccodegen-units=1 -Cstrip=none -Clink-arg=-Wl,-z,relro -Clink-arg=-Wl,-z,now -Clink-arg=-specs=/usr/lib/rpm/redhat/redhat-package-notes --cap-lints=warn -L native=/builddir/build/BUILD/trunk-0.18.8/target/rpm/build/ring-d8d3c8e8e3c88903/out -L native=/builddir/build/BUILD/trunk-0.18.8/target/rpm/build/libdeflate-sys-966c87b836b83231/out/lib -L native=/builddir/build/BUILD/trunk-0.18.8/target/rpm/build/bzip2-sys-65b4b2d68c93585b/out/lib -L native=/builddir/build/BUILD/trunk-0.18.8/target/rpm/build/zstd-sys-b01e8ba32de86af3/out` (signal: 11, SIGSEGV: invalid memory reference)
```

Reproducible: Always

Steps to Reproduce:
1. build trunk
2. https://koji.fedoraproject.org/koji/taskinfo?taskID=113794237
3.
Actual Results:  
Segfaults during compilation

Expected Results:  
Does not segfault

All other architectures seem to work. This seems to be limited to i686.

Comment 1 Jens Reimann 2024-02-27 08:18:30 UTC

The source and SRPM can be found here: https://dentrassi.de/download/rust-trunk/

Comment 2 Jens Reimann 2024-02-27 08:20:56 UTC

Here's the upstream issue: https://github.com/rust-lang/rust/issues/121305

Comment 3 Josh Stone 2024-02-27 23:50:37 UTC

DenseMap calling llvm::allocate_buffer is throwing std::bad_alloc, and then ~LLVMContextImpl is faulting in DenseMapBase::erase().

See https://github.com/rust-lang/rust/issues/121305#issuecomment-1967910889

Comment 4 Aoife Moloney 2025-02-26 12:58:58 UTC

This bug appears to have been reported against 'rawhide' during the Fedora Linux 42 development cycle.
Changing version to 42.

Comment 5 Fedora Release Engineering 2026-05-06 11:36:41 UTC

This message is a reminder that Fedora Linux 42 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 42 on 2026-05-13.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
'version' of '42'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, change the 'version' 
to a later Fedora Linux version. Note that the version field may be hidden.
Click the "Show advanced fields" button if you do not see it.

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able to fix it before Fedora Linux 42 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora Linux, you are encouraged to change the 'version' to a later version
prior to this bug being closed.

Comment 6 Aoife Moloney 2026-06-08 15:46:34 UTC

Fedora Linux 42 entered end-of-life (EOL) status on 2026-05-27.

Fedora Linux 42 is no longer maintained, which means that it
will not receive any further security or bug fix updates. As a result we
are closing this bug.

If you can reproduce this bug against a currently maintained version of Fedora Linux
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