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System: Ubuntu 14.04, running cinnamon, on a Dell M3800.
The bug happens randomly and logs off the user, who loses everything in the
current session.
It happens mostly when a new window is openned, especially terminals (but not
only).
> cat /proc/version_signature
Ubuntu 3.16.0-41.57~14.04.1-generic 3.16.7-ckt11
The same happens with the latest 3.16.0-43 kernel. Here's what I found
in the Xorg.0.log.old file:
[ 1063.253] (EE) Backtrace:
[ 1063.254] (EE) 0: /usr/bin/X (xorg_backtrace+0x48) [0x7fe8e43aaed8]
[ 1063.254] (EE) 1: /usr/bin/X (0x7fe8e4206000+0x1a8f19) [0x7fe8e43aef19]
[ 1063.254] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7fe8e2385000+0x36d40)
[0x7fe8e23bbd40]
[ 1063.254] (EE) 3: /usr/lib/xorg/modules/drivers/intel_drv.so
(0x7fe8de18b000+0x258f9) [0x7fe8de1b08f9]
[ 1063.254] (EE) 4: /usr/lib/xorg/modules/drivers/intel_drv.so
(0x7fe8de18b000+0x26d7c) [0x7fe8de1b1d7c]
[ 1063.254] (EE) 5: /usr/lib/xorg/modules/drivers/intel_drv.so
(0x7fe8de18b000+0xf4f4f) [0x7fe8de27ff4f]
[ 1063.254] (EE) 6: /usr/bin/X (0x7fe8e4206000+0x1755bd) [0x7fe8e437b5bd]
[ 1063.254] (EE) 7: /usr/bin/X (0x7fe8e4206000+0x176397) [0x7fe8e437c397]
[ 1063.255] (EE) 8: /usr/bin/X (DRI2GetBuffersWithFormat+0x10) [0x7fe8e437c770]
[ 1063.255] (EE) 9: /usr/bin/X (0x7fe8e4206000+0x178499) [0x7fe8e437e499]
[ 1063.255] (EE) 10: /usr/bin/X (0x7fe8e4206000+0x5369e) [0x7fe8e425969e]
[ 1063.255] (EE) 11: /usr/bin/X (0x7fe8e4206000+0x574ea) [0x7fe8e425d4ea]
[ 1063.255] (EE) 12: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5)
[0x7fe8e23a6ec5]
[ 1063.255] (EE) 13: /usr/bin/X (0x7fe8e4206000+0x42a5e) [0x7fe8e4248a5e]
[ 1063.255] (EE)
[ 1063.255] (EE) Bus error at address 0x7fe890108000
---
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: csoler 7078 F.... pulseaudio
/dev/snd/controlC0: csoler 7078 F.... pulseaudio
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=/dev/mapper/swap
InstallationDate: Installed on 2015-06-18 (19 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
MachineType: Dell Inc. Dell Precision M3800
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-41-generic
root=UUID=ed58d38e-680c-4454-863d-9c8e4698082c ro quiet splash
ProcVersionSignature: Ubuntu 3.16.0-41.57~14.04.1-generic 3.16.7-ckt11
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not
accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.16.0-41-generic N/A
linux-backports-modules-3.16.0-41-generic N/A
linux-firmware 1.127.12
Tags: trusty
Uname: Linux 3.16.0-41-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 01/08/2015
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A09
dmi.board.name: Dell Precision M3800
dmi.board.vendor: Dell Inc.
dmi.board.version: A09
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: Not Specified
dmi.modalias:
dmi:bvnDellInc.:bvrA09:bd01/08/2015:svnDellInc.:pnDellPrecisionM3800:pvrA09:rvnDellInc.:rnDellPrecisionM3800:rvrA09:cvnDellInc.:ct8:cvrNotSpecified:
dmi.product.name: Dell Precision M3800
dmi.product.version: A09
dmi.sys.vendor: Dell Inc.
** Affects: xorg (Ubuntu)
Importance: Medium
Status: Incomplete
** Tags: apport-collected latest-bios-a09 trusty
--
XServer crash logs the user off randomly
https://bugs.launchpad.net/bugs/1472471
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