1951173 - Crash in [@ <naga::back::spv::CachedExpressions as core::ops::index::Index<naga::arena::handle::Handle<naga::Expression>>>::index]

Status: RESOLVED WORKSFORME

(Core :: Graphics: WebGPU, defect, P2)

Description

[Andrew McCreight [:mccr8]]

Crash report: https://crash-stats.mozilla.org/report/index/511f77b7-2d94-4986-ace9-ddc7b0250210

MOZ_CRASH Reason:

internal error: entered unreachable code: Expression [45] is not cached!

Top 10 frames:

0  libxul.so  MOZ_CrashSequence(void*, long)  mfbt/Assertions.h:245
0  libxul.so  MOZ_Crash(char const*, int, char const*)  mfbt/Assertions.h:371
0  libxul.so  RustMozCrash  mozglue/static/rust/wrappers.cpp:18
1  libxul.so  mozglue_static::panic_hook  mozglue/static/rust/lib.rs:102
2  libxul.so  core::ops::function::FnMut::call_mut  /builds/worker/fetches/rustc/lib/rustlib/src/rust/library/core/src/ops/function.rs:79
3  libxul.so  <alloc::boxed::Box<F, A> as core::ops::function::Fn<Args>>::call  library/alloc/src/boxed.rs:1986
3  libxul.so  std::panicking::rust_panic_with_hook  library/std/src/panicking.rs:809
4  libxul.so  std::panicking::begin_panic_handler::{{closure}}  library/std/src/panicking.rs:674
5  libxul.so  std::sys::backtrace::__rust_end_short_backtrace  library/std/src/sys/backtrace.rs:170
6  libxul.so  rust_begin_unwind  library/std/src/panicking.rs:665

The volume isn't super high here. Maybe it is a regression. These are all this specific internal error.

Comment 1

[Erich Gubler [:ErichDonGubler] (he/him)]

This should be resolved upstream by wgpu#4540.

Comment 2

[BugBot [:suhaib / :marco]]

:mccr8, since this bug is a regression, could you fill (if possible) the regressed_by field?
For more information, please visit BugBot documentation.

Comment 3

[BugBot [:suhaib / :marco]]

This bug has been marked as a regression. Setting status flag for Nightly to affected.

Comment 4

[BugBot [:suhaib / :marco]]

Closing because no crashes reported for 12 weeks.