[Bug 1553328] Re: Mir/Unity8 crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
Daniel van Vugt
daniel.van.vugt at canonical.com
Wed Mar 8 03:14:12 UTC 2017
I'm not sure this is useful to assign to that milestone. The bug and the
fix are in the nouveau driver.
Although each GL client could work around it by moving all their GL
rendering to a single thread, we really shouldn't have to do that just
to support nouveau.
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https://bugs.launchpad.net/bugs/1553328
Title:
Mir/Unity8 crashes/freezes on nouveau (nv50) in pushbuf_kref()
especially with multiple monitors, webbrowser-app or system settings
Status in Canonical System Image:
Confirmed
Status in Mir:
Invalid
Status in Nouveau Xorg driver:
Unknown
Status in libdrm package in Ubuntu:
Triaged
Status in mesa package in Ubuntu:
Invalid
Status in mir package in Ubuntu:
Invalid
Status in qtmir package in Ubuntu:
Invalid
Bug description:
Unit8 froze up while I was trying to open system settings.
ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: unity8 8.11+16.04.20160216.1-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3
Uname: Linux 4.4.0-9-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
Date: Fri Mar 4 19:12:54 2016
ExecutablePath: /usr/bin/unity8
InstallationDate: Installed on 2015-05-10 (299 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
ProcCmdline: unity8
SegvAnalysis:
Segfault happened at: 0x7f58d568706c: mov 0x8(%rsi),%edx
PC (0x7f58d568706c) ok
source "0x8(%rsi)" (0x00000008) not located in a known VMA region (needed readable region)!
destination "%edx" ok
Stack memory exhausted (SP below stack segment)
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity8
StacktraceTop:
?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2
?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2
?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so
?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1
Title: unity8 crashed with SIGSEGV
UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago)
UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo
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