1865838 - Crash in [@ webrender_bindings::moz2d_renderer::impl$9::prepare_request::process_native_font_handle]

Status: RESOLVED FIXED

(Core :: Graphics: WebRender, defect)

Description

[Donal Meehan [:dmeehan]]

Crash report: https://crash-stats.mozilla.org/report/index/aaaf1f0a-ffc6-446a-a4b6-849720231121

MOZ_CRASH Reason: called `Option::unwrap()` on a `None` value

Top 10 frames of crashing thread:

0  xul.dll  MOZ_Crash  mfbt/Assertions.h:281
0  xul.dll  RustMozCrash  mozglue/static/rust/wrappers.cpp:17
1  xul.dll  mozglue_static::panic_hook  mozglue/static/rust/lib.rs:96
2  xul.dll  core::ops::function::Fn::call<void   /rustc/79e9716c980570bfd1f666e3b16ac583f0168962/library/core/src/ops/function.rs:250
3  xul.dll  alloc::boxed::impl$49::call  library/alloc/src/boxed.rs:2021
3  xul.dll  std::panicking::rust_panic_with_hook  library/std/src/panicking.rs:735
4  xul.dll  std::panicking::begin_panic_handler::closure$0  library/std/src/panicking.rs:601
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:170
6  xul.dll  std::panicking::begin_panic_handler  library/std/src/panicking.rs:597
7  xul.dll  core::panicking::panic_fmt  library/core/src/panicking.rs:72

Comment 1

[Donal Meehan [:dmeehan]]

Pinged :cmartin to investigate if this is caused by https://bugzilla.mozilla.org/show_bug.cgi?id=1860062
Adding an NI here to update and set the correct regressor once confirmed.
We can then backout and request new nightlies.

Comment 2

[Chris Martin [:cmartin]]

Alrighty -- It appears from inspection that the GPU sandbox is the most likely candidate for these crashes. sigh

:dmeehan Could I please request a backout? I don't think I'm going to be able to fix all these regressions in a short enough window of time.

Comment 3

[Donal Meehan [:dmeehan]]

Requested backout of Bug 1860062.

Comment 4

[Donal Meehan [:dmeehan]]

Setting Fx122 to fixed, the regressor was backed out of central

Comment 5

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

The bug is linked to a topcrash signature, which matches the following criterion:

• Top 10 desktop browser crashes on nightly

For more information, please visit BugBot documentation.