1978076 - Crash in [@ wgpu_core::storage::Storage<T>::insert]

Status: RESOLVED FIXED

(Core :: Graphics: WebGPU, defect)

Description

[Dianna Smith [:diannaS]]

Crash report: https://crash-stats.mozilla.org/report/index/c26b924a-3e4b-4b3f-a56f-a0e210250718

MOZ_CRASH Reason:

assertion `left != right` failed: Index 0 of Device is already occupied
  left: 1
 right: 1

Top 10 frames:

0  libxul.so  MOZ_CrashSequence(void*, long)  mfbt/Assertions.h:248
0  libxul.so  MOZ_Crash(char const*, int, char const*)  mfbt/Assertions.h:381
0  libxul.so  RustMozCrash  mozglue/static/rust/wrappers.cpp:18
1  libxul.so  mozglue_static::panic_hook  mozglue/static/rust/lib.rs:99
2  libxul.so  core::ops::function::Fn::call  /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:1990
3  libxul.so  std::panicking::rust_panic_with_hook  library/std/src/panicking.rs:839
4  libxul.so  std::panicking::begin_panic_handler::{{closure}}  library/std/src/panicking.rs:704
5  libxul.so  std::sys::backtrace::__rust_end_short_backtrace  library/std/src/sys/backtrace.rs:168
6  libxul.so  rust_begin_unwind  library/std/src/panicking.rs:695

Comment 1

[Dianna Smith [:diannaS]]

:aleiserson could this be related to bug 1976958? If so, should we back it out of nightly?

Comment 2

[Bastien Orivel [:eijebong]]

I can reproduce this consistently with:

• docker run -p 3001:3000 --name=grafana grafana/grafana-enterprise
• going to 127.0.0.1:3001
• logging in (admin/admin)
• trying to create a dashboard

I discovered this while trying to open one of grafana's selector on a dashboard but apparently creating one triggers the assertion too.

Setting dom.webgpu.enabled to false "fixes" the issue.

Comment 3

[Andy Leiserson [:aleiserson]]

Yes, it seems likely that bug 1976958 is the cause and should be backed out.

Comment 4

[BugBot [:suhaib / :marco]]

Set release status flags based on info from the regressing bug 1976958

Comment 5

[Dianna Smith [:diannaS]]

Marking as fixed because bug 1976958 was backed out of central. Waiting on new nightlies.