FYI: solved.
Experienced multiple: segfault at 0 ip 00007f4fd1d77c16 sp 00007ffd50554da0
error 4 in i965_dri.so (deleted)[7f4fd179a000+82d000]
Looks to be related to display: Related to Driver for Intel Skylake Integrated
Graphics Chipset
My System:
description: Desktop Computer
product: OptiPlex 380
vendor: Dell Inc.
serial: XXXXXX
width: 64 bits
capabilities: smbios-2.5 dmi-2.5 vsyscall32
*-core
description: Motherboard
product: 0HN7XN
vendor: Dell Inc.
physical id: 0
version: A01
serial: ..xxxxxxxxxxxx.
After update: $ sudo apt update && sudo apt upgrade -y
Things back to normal.
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Packages, which is subscribed to mesa in Ubuntu.
https://bugs.launchpad.net/bugs/1735594
Title:
[regression] compiz crashes after Mesa upgrade
Status in mesa package in Ubuntu:
Fix Committed
Status in mesa source package in Xenial:
Fix Released
Status in mesa source package in Artful:
Fix Released
Bug description:
[Impact]
When I use the Unity session I automatically get logged out under these
conditions:
When I hover with my mouse over any icon of the sidebar.
When I press the alt key.
When I press the super key.
running dmesg after this unwanted logout happens I get following
information:
compiz[10616]: segfault at 0 ip 00007fbca309feeb sp 00007fff5f59a4d0
error 4 in i965_dri.so[7fbca2af6000+7e4000]
This is caused by a mesa upgrade, which added a patch for bug #1727401. The
crasher is reproduced on:
- gen4 / gen5 Intel
- if using modesetting X driver, like when xserver-xorg-video-intel is not
installed, or the HWE stack is installed (xserver-xorg-core-hwe-16.04 defaults
to modesetting)
[Test case]
Log in to Unity, open the dash or try to log out etc. Compiz shouldn't crash.
[Regression potential]
The backported patches need to be tested, here for regressions and on 1727401
that they fix the original bug (again).
Best to test on a wide array of Intel HW:
gen4 (965GM/GM45/G45)
gen5 (Ironlake)
gen6 (Sandy Bridge)
gen7 (Bay Trail, Ivy Bridge, Haswell)
gen8 (Braswell, Broadwell)
gen9 (Apollo Lake, Skylake, Gemini Lake, Kaby Lake, Coffee Lake)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1735594/+subscriptions
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