1893837 - Crash in [@ core::ptr::drop_in_place | smallvec::impl$37::drop]

Status: NEW

(Core :: CSS Parsing and Computation, defect)

Description

[BugBot [:suhaib / :marco/ :calixte]]

Crash report: https://crash-stats.mozilla.org/report/index/6e437900-0d43-4c7c-bdcf-fb57d0240424

MOZ_CRASH Reason: Locked::read_with called with a guard from an unrelated SharedRwLock: 0x11 vs. 0x1d8e580

Top 10 frames of crashing thread:

0  xul.dll  MOZ_Crash  mfbt/Assertions.h:317
0  xul.dll  RustMozCrash  mozglue/static/rust/wrappers.cpp:17
1  xul.dll  mozglue_static::panic_hook  mozglue/static/rust/lib.rs:98
2  xul.dll  core::ops::function::Fn::call<void   /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/ops/function.rs:250
3  xul.dll  alloc::boxed::impl$49::call  library/alloc/src/boxed.rs:2029
3  xul.dll  std::panicking::rust_panic_with_hook  library/std/src/panicking.rs:785
4  xul.dll  std::panicking::begin_panic_handler::closure$0  library/std/src/panicking.rs:659
5  xul.dll  std::sys_common::backtrace::__rust_end_short_backtrace<std::panicking::begin_panic_handler::closure_env$0, never$>  library/std/src/sys_common/backtrace.rs:171
6  xul.dll  std::panicking::begin_panic_handler  library/std/src/panicking.rs:647
7  xul.dll  core::panicking::panic_fmt  library/core/src/panicking.rs:72

By querying Nightly crashes reported within the last 2 months, here are some insights about the signature:

• First crash report: 2024-02-21
• Process type: Content
• Is startup crash: No
• Has user comments: No
• Is null crash: No

Comment 1

[Jonathan Kew [:jfkthame]]

Seems to be a low but fairly steady crash rate since late-ish January (perhaps corresponding to the release of Firefox 124), though there are some reports from earlier versions as well, so not entirely a new issue.