[Mesa-dev] [Bug 109927] Xorg segfault when a web browser is opened

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109927

            Bug ID: 109927
           Summary: Xorg segfault when a web browser is opened
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Other
          Assignee: mesa-dev at lists.freedesktop.org
          Reporter: keiron.davies at googlemail.com
        QA Contact: mesa-dev at lists.freedesktop.org

Created attachment 143574
  --> https://bugs.freedesktop.org/attachment.cgi?id=143574&action=edit
Output of journalctl -b

I use the Padoka PPA. Approximately 45 hours ago, there was an update for
Bionic that moved the Mesa version from 'master git branch up to commit
6fa923a65daf1ee73c5cc763ade91abc82da7085' to commit
43f40dc7cb234e007fe612b67cc765288ddf0533, and xserver-xorg-video-amdgpu from
'master git branch up to commit 9045fb310f88780e250e60b80431ca153330e61b' to
commit a2b32e72fdaff3007a79b84929997d8176c2d512. No other changes have taken
place in my system.

Since then, within 1.5s of opening a web browser (Firefox, Chromium), I get a
crash to graphical login prompt. I can open the Nautilus file browser, even a
terminal session with transparency enabled, without issue for as long as I
like. Below is the error message and my system specs, and attached are the
relevant logfiles from a Chromium crash. Firefox crash produces no specific
error messages prior to the segfault, but I can upload those logs too if
needed. Apologies if this bug is incorrectly filed, I wasn't sure whether the
issue may lie with mesa or xserver-xorg-video-amdgpu.

Mar 07 15:35:07 host chromium-browser.desktop[3259]:
[3293:3293:0307/153507.139737:ERROR:sandbox_linux.cc(364)] InitializeSandbox()
called with multiple threads in process gpu-process.
Mar 07 15:35:07 host gnome-keyring-daemon[1895]: couldn't allocate secure
memory to keep passwords and or keys from being written to the disk
Mar 07 15:35:07 host gnome-keyring-daemon[1895]: asked to register item
/org/freedesktop/secrets/collection/Default_5fkeyring/1, but it's already
registered
Mar 07 15:35:07 host gnome-keyring-daemon[1895]: asked to register item
/org/freedesktop/secrets/collection/Default_5fkeyring/1, but it's already
registered
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: (EE)
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: (EE) Backtrace:
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: (EE) 0:
/usr/lib/xorg/Xorg (xorg_backtrace+0x4d) [0x5558457998cd]
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: (EE) 1:
/usr/lib/xorg/Xorg (0x5558455e1000+0x1bc669) [0x55584579d669]
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: (EE) 2:
/lib/x86_64-linux-gnu/libpthread.so.0 (0x7ffb48abe000+0x12890) [0x7ffb48ad0890]
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: (EE)
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: (EE) Segmentation fault
at address 0x0
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: (EE)
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: Fatal server error:
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: (EE) Caught signal 11
(Segmentation fault). Server aborting
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: (EE)
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: Please consult the The
X.Org Foundation support
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]:          at
http://wiki.x.org
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]:  for help.
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: (EE) Please also check
the log file at "/home/usernaym/.local/share/xorg/Xorg.0.log" for additional
information.
Mar 07 15:35:10 host /usr/lib/gdm3/gdm-x-session[1899]: (EE)

System:    Host: host Kernel: 5.0.0-050000-generic x86_64 bits: 64 Desktop:
Gnome 3.28.3
           Distro: Ubuntu 18.04.2 LTS
Machine:   Device: desktop Mobo: ASUSTeK model: M4A87TD EVO v: Rev 1.xx serial:
N/A
           BIOS: American Megatrends v: 2001 date: 03/08/2011
CPU:       Quad core AMD Phenom II X4 970
Graphics:  Card: Advanced Micro Devices [AMD/ATI] Hawaii PRO [Radeon R9
290/390]
           Display Server: x11 (X.Org 1.19.6 ) drivers: ati,vesa (unloaded:
modesetting,fbdev,radeon)
           Resolution: 2560x1440 at 59.95hz
           OpenGL: renderer: AMD Radeon R9 390 Series (HAWAII, DRM 3.27.0,
5.0.0-050000-generic, LLVM 9.0.0)
           version: 4.5 Mesa 19.1.0-devel - padoka PPA

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