1665887 - [macOS 11] Crash in [@ __pthread_kill | libsystem_c.dylib@0x8073f]

Status: RESOLVED DUPLICATE of bug 1576767

(Core :: Graphics: CanvasWebGL, defect)

Description

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

This crash is observed since macOS 11.0 developer beta 5 (10.16.0 20A5354i). It has the highest volume of the Big Sur crashes but it's unknown how meaningful this is.

Crash report: https://crash-stats.mozilla.org/report/index/732e883f-d9b2-4974-8e1a-03d400200917

Top 10 frames of crashing thread:

0 libsystem_kernel.dylib __pthread_kill 
1 libsystem_c.dylib libsystem_c.dylib@0x8073f 
2 libGPUSupportMercury.dylib libGPUSupportMercury.dylib@0xb0a7 
3 libGPUSupportMercury.dylib libGPUSupportMercury.dylib@0x220c 
4 AMDRadeonX4000GLDriver _gpusKillClientExt 
5 libGPUSupportMercury.dylib libGPUSupportMercury.dylib@0x35ce 
6 AMDRadeonX4000GLDriver _glrATI_Hwl_SubmitPacketsWithToken 
7 XUL mozilla::gl::GLContext::fFlush gfx/gl/GLContext.h:1135
8 XUL mozilla::gl::GLContextCGL::SwapBuffers gfx/gl/GLContextProviderCGL.mm:217
9 XUL mozilla::layers::CompositorOGL::EndFrame gfx/layers/opengl/CompositorOGL.cpp:2036

Comment 1

[Steven Michaud [:smichaud] (Retired)]

This is probably just a dup of bug 1576767 on macOS 11. The increase in numbers with Beta 5 is likely just a result of the increasing number of Firefox users on macOS 11.

On builds with the patch for bug 1662862 (current builds on the 82 and 81 branches), macOS 11 crash stacks are now getting fully symbolicated.

Comment 2

[Steven Michaud [:smichaud] (Retired)]

Note that bug 1576767 is actually at least two different Apple bugs -- one on AMD Radeon graphics hardware and one on Apple Intel graphics hardware.