Bug 97421 - After upgrading to Linux 3.19, desktop no longer works in Xen 4.5.0 dom0
Summary: After upgrading to Linux 3.19, desktop no longer works in Xen 4.5.0 dom0
Status: NEW
Alias: None
Product: Virtualization
Classification: Unclassified
Component: Xen (show other bugs)
Hardware: x86-64 Linux
: P1 normal
Assignee: virtualization_xen
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-04-28 07:57 UTC by Ting-Wei Lan
Modified: 2015-04-28 07:57 UTC (History)
0 users

See Also:
Kernel Version: 3.19, 4.0, 4.1
Subsystem:
Regression: No
Bisected commit-id:

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Description Ting-Wei Lan 2015-04-28 07:57:52 UTC 
My desktop was no longer usable as Xen 4.5.0 dom0 after upgrading to Linux 3.19. Characters become broken after the graphic driver is loaded, and starting Xorg may cause the system to crash. Here is the screenshot: https://bugs.freedesktop.org/attachment.cgi?id=115079

After using git bisect, I found the commit that causes problems is https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=47591df


dmesg:
https://bugs.freedesktop.org/attachment.cgi?id=115080

The [drm] GPU HANG message is caused by Xorg. If I don't start Xorg, there is no error message.


/sys/class/drm/card0/error:
https://bugs.freedesktop.org/attachment.cgi?id=115081


Hardware:
Intel Core i5 CPU 650 @ 3.20GHz
Intel Ironlake Desktop
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