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Crashes by some browsers


Description Vladimir 2016-11-09 15:41:28 CET
Distr: Arch Linux (up-to-date)
Firefox version: 49.0.2
xfwm4 version: 4.12.3
Opera version: 41.0.2353.46-1

How to reproduce:
1. Open twitter in browser (tried both firefox and opera).
2. Open there some particular tweet with embedded video (I'm not sure video presense is a key though).
3. xfwm and panel crashes (while browser keeps working fine).

dmesg output for the failure is:

[ 2272.201439] xfwm4[748]: segfault at 0 ip 00007f3bf5e0e8d1 sp 00007ffdf0fdf510 error 4 in libfontconfig.so.1.9.2[7f3bf5e03000+3e000]
[ 2272.203317] xfce4-panel[752]: segfault at 0 ip 00007fbcb547d8d1 sp 00007ffc8cc47b40 error 4 in libfontconfig.so.1.9.2[7fbcb5472000+3e000]
[ 2272.456342] xfwm4[4209]: segfault at 0 ip 00007fe3eec6b8d1 sp 00007ffcf3b37040 error 4 in libfontconfig.so.1.9.2[7fe3eec60000+3e000]
[ 2272.681480] xfwm4[4221]: segfault at 0 ip 00007fb9ac1078d1 sp 00007ffd61a561a0 error 4 in libfontconfig.so.1.9.2[7fb9ac0fc000+3e000]
[ 2272.962011] xfwm4[4231]: segfault at 0 ip 00007f644eb288d1 sp 00007fff7ca44440 error 4 in libfontconfig.so.1.9.2[7f644eb1d000+3e000]
[ 2273.199728] xfwm4[4250]: segfault at 0 ip 00007f6106cba8d1 sp 00007ffcd3859640 error 4 in libfontconfig.so.1.9.2[7f6106caf000+3e000]
[ 2273.407217] xfwm4[4261]: segfault at 0 ip 00007f6a973c98d1 sp 00007ffc1af94e80 error 4 in libfontconfig.so.1.9.2[7f6a973be000+3e000]
Comment 1 Olivier Fourdan editbugs 2016-11-09 15:43:03 CET
Can you please attach gdb to xfwm4 and capture the full backtrace of the crash?
Comment 2 Olivier Fourdan editbugs 2016-11-09 15:44:00 CET
That looks like it's fontconfig crashing
Comment 3 Vladimir 2016-11-09 16:01:13 CET
It turned out that it was an issue with fontconfig configuration files. Didn't thought about that initially because modifications were made a lot of months ago but I never had any issues. My apologies for a false alarm.
Comment 4 Olivier Fourdan editbugs 2016-11-09 16:02:34 CET
No worries, glad it's root caused and thanks for the update.

Bug #12950

Reported by:
Reported on: 2016-11-09
Last modified on: 2016-11-09


Olivier Fourdan
CC List:
0 users




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