Public bug reported:
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
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1472471
Title:
XServer crash logs the user off randomly
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