[Bug 99456] Firefox crashing when opening about:support with WebGL2 enabled

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Jan 19 05:54:06 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=99456

            Bug ID: 99456
           Summary: Firefox crashing when opening about:support with
                    WebGL2 enabled
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: geecko.dev at free.fr
        QA Contact: dri-devel at lists.freedesktop.org

Stack:
- firefox 50.1.0
- linux 4.8.13 and 4.10-RC4
- xorg-server 1.19.1
- mesa 17.0 180653c357
- llvm 5.0 292441

Hardware:
- R9 Fury

Steps to reproduce:
- open firefox
- open about:config
- set webgl.enable-webgl2 key to true
- open about:support
- firefox will crash with the following backtrace

#0  0x00007ffff7bc6ad0 in pthread_mutex_lock () at /usr/lib/libpthread.so.0
#1  0x00007fffc1de0d2c in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#2  0x00007fffc1de13fb in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#3  0x00007fffc1e00e82 in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#4  0x00007fffc1f39eff in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#5  0x00007fffc211df49 in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#6  0x00007fffc23c61a7 in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#7  0x00007fffc23c83eb in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#8  0x00007fffc23d9a30 in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#9  0x00007fffc2135634 in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#10 0x00007fffc21353e7 in  () at /usr/lib/xorg/modules/dri/radeonsi_dri.so
#11 0x00007ffff7bc4454 in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007ffff6e607df in clone () at /usr/lib/libc.so.6

Thread 48 "si_shader:1" received signal SIGSEGV, Segmentation fault.

Firefox Developer Edition from flatpak works properly.

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