Bug#806177: general protection ip:7f1572272b8c sp:7ffe1d1f0ef0 error:0 in libcairo.so.2.11400.4[7f157223b000+10e000] crashes gnome-shell

[Emilio Pozuelo Monfort]

Control: tags -1 moreinfo
Control: reassign -1 gnome-shell

On 25/11/15 02:59, Yaroslav Halchenko wrote:
> Package: libcairo2
> Version: 1.14.4-1
> Severity: important
> File: /usr/lib/x86_64-linux-gnu/libcairo.so.2.11400.4
> 
> I was in a preview mode (super) and closed one of the windows inthere (forgot
> which one ;) ) which lead to the restart of the gnome-shell (on the next
> restart I think gnome will announce that unrecoverable error, and would
> cause to log me out). journalctl gives following limited details
> 
> Nov 24 20:51:50 hopa kernel: traps: gnome-shell[2446] general protection ip:7f1572272b8c sp:7ffe1d1f0ef0 error:0 in libcairo.so.2.11400.4[7f157223b000+10e000]
> Nov 24 20:51:50 hopa polkitd(authority=local)[1606]: Unregistered Authentication Agent for unix-session:2 (system bus name :1.65, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disco
> Nov 24 20:51:50 hopa gnome-session[2353]: gnome-session-binary[2353]: WARNING: Application 'gnome-shell.desktop' killed by signal 11
> Nov 24 20:51:50 hopa gnome-session-binary[2353]: WARNING: Application 'gnome-shell.desktop' killed by signal 11
> Nov 24 20:51:51 hopa kernel: [drm:drm_mode_getconnector] [CONNECTOR:32:?]
> Nov 24 20:51:51 hopa kernel: [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:32:eDP-1]
> Nov 24 20:51:51 hopa kernel: [drm:intel_dp_detect] [CONNECTOR:32:eDP-1]
> 
> sorry -- know that not much of detail... but there is no even libcairo2-dbg, so
> not sure what else information I could harvest even if attach in gdb to
> gnome-shell to monitor for future possible similar cases.

Actually, there is...

libcairo2-dbg |   1.14.4-1 | http://ftp.debian.org/debian/ testing/main amd64
Packages

It'd be very useful if you manage to reproduce this and get a backtrace.

Cheers,
Emilio