Another report and some thoughts below
HW: Asus Vivobook (touchscreen, Intel graphics), external monitor attached.
OS: Linux Mint 18 Cinnamon x64.
State before crash: Running X session using both displays ("big desktop"),
several applications, Vivaldi browser active.
My aim: Lock the computer.
Course of action, the USUAL part: Pressed Ctrl+Alt+L, not locked - Vivaldi
displayed its menu (to be displayed upon pressing Alt), tapped the touchscreen
to get rid of the menu and thus actually lock the computer.
Course of action, the UNUSUAL part: Black screen for a few seconds, then login
screen, old X session gone.
syslog:
Mar 20 14:43:20 VivoBook org.a11y.atspi.Registry[1729]: XIO: fatal IO error 11
(Resource temporarily unavailable) on X server ":0"
Mar 20 14:43:20 VivoBook org.a11y.atspi.Registry[1729]: after 2925
requests (2925 known processed) with 0 events remaining.
Mar 20 14:43:20 VivoBook cinnamon-session[1640]: Gdk-WARNING: t+4492,79569s:
cinnamon-session: Fatal IO error 11 (Prostředek je dočasně nepřístupný) on X
server :0.
Mar 20 14:43:20 VivoBook org.gtk.vfs.Daemon[1711]: A connection to the bus
can't be made
Mar 20 14:43:20 VivoBook org.gtk.vfs.Daemon[1711]: A connection to the bus
can't be made
Mar 20 14:43:20 VivoBook mdm[1212]: WARNING: mdm_slave_xioerror_handler:
Kritická chyba X - Restartování :0
Mar 20 14:43:20 VivoBook kernel: [ 4538.677519] vivaldi-bin[4100]: segfault at
968 ip 00007f61ac384643 sp 00007ffc09f25b50 error 4 in
libX11.so.6.3.0[7f61ac35c000+135000]
Mar 20 14:43:20 VivoBook ag[4118]: mdm-superpost Starting...
Mar 20 14:43:20 VivoBook ag[4122]: mdm-superpost Finished
Mar 20 14:43:20 VivoBook console-kit-daemon[1566]: (process:4128):
GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
Mar 20 14:43:21 VivoBook acpid: client 1219[0:0] has disconnected
Mar 20 14:43:21 VivoBook acpid: client connected from 4131[0:0]
Mar 20 14:43:21 VivoBook acpid: 1 client rule loaded
Mar 20 14:43:22 VivoBook ag[4139]: mdm-superinit Starting...
Mar 20 14:43:22 VivoBook ag[4140]: mdm-superinit Finished
Xorg.0.log covers the new session, Xorg.0.log.old has no record of the
event.
The segfault really seems to affect multiple users, especially with
Chromium-based browsers, e.g.:
https://bbs.archlinux.org/viewtopic.php?id=131328 - from 2011 already
https://bbs.archlinux.org/viewtopic.php?id=221888 - solution?
I don't know if syslog preserves the order of events (within a second), but if
yes, then the segfault is just a consequence of another problem, e.g.:
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/999191
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to libx11 in Ubuntu.
https://bugs.launchpad.net/bugs/1636564
Title:
Segfault from libX11.so.6.3.0
Status in libx11 package in Ubuntu:
Confirmed
Bug description:
Something went wrong with my Ubuntu 16.04 LTS desktop today. When I
got back to the system Mattermost and a Chrome were indicating that
the network was not working. I started to look about and it seemed
that my main ethernet network connection had lost its IPv4 address
somehow. ifconfig and the GUI network manager confirmed this.
To try and resolve this I physically removed the connector and the
plugged it back in. Shortly after I did this my GUI seemed to die out
and I ended up back at the login screen.
Once everything had calmed down I logged back in. After some digging
about in the logs I noticed the following in /var/log/kern.log
Oct 25 13:01:09 thorne-ul-dt kernel: [694321.877561] Mattermost[744]:
segfault at 968 ip 00007f8a9e257643 sp 00007ffe72a3b510 error 4 in
libX11.so.6.3.0[7f8a9e22f000+135000]
Oct 25 13:01:09 thorne-ul-dt kernel: [694322.029362] chrome[745]: segfault at
968 ip 00007fd4b5c73643 sp 00007fff94f78d90 error 4 in
libX11.so.6.3.0[7fd4b5c4b000+135000]
That seemed to be the correct time for the problem I noticed. What
exactly caused it I am not sure.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: libx11-6 2:1.6.3-1ubuntu2
ProcVersionSignature: Ubuntu 4.4.0-42.62-generic 4.4.21
Uname: Linux 4.4.0-42-generic x86_64
.tmp.unity_support_test.0:
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Tue Oct 25 17:07:28 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
GraphicsCard:
Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics
Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller])
Subsystem: Gigabyte Technology Co., Ltd Xeon E3-1200 v3/4th Gen Core
Processor Integrated Graphics Controller [1458:d000]
InstallationDate: Installed on 2015-03-12 (592 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64
(20150218.1)
MachineType: Gigabyte Technology Co., Ltd. H81M-DS2V
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-38-generic.efi.signed
root=/dev/mapper/ubuntu--vg-root ro quiet splash crashkernel=384M-:128M
vt.handoff=7
SourcePackage: libx11
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/11/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F6
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: H81M-DS2V
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrF6:bd08/11/2015:svnGigabyteTechnologyCo.,Ltd.:pnH81M-DS2V:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnH81M-DS2V:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: H81M-DS2V
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2.2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2.2
version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20160325-1ubuntu1.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.12-1build2
xserver.bootTime: Tue Oct 25 13:01:04 2016
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 30926
vendor BNQ
xserver.version: 2:1.18.4-0ubuntu0.1
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