Bug 23062 - kvm segfaults on 2.6.36-64bit kernel with 32 bit userspace
Summary: kvm segfaults on 2.6.36-64bit kernel with 32 bit userspace
Status: CLOSED CODE_FIX
Alias: None
Product: Virtualization
Classification: Unclassified
Component: kvm (show other bugs)
Hardware: x86-64 Linux
: P1 high
Assignee: Avi Kivity
URL:
Keywords:
Depends on:
Blocks: 16444
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Reported: 2010-11-17 11:59 UTC by Jorge Boncompte
Modified: 2010-11-21 23:10 UTC (History)
6 users (show)

See Also:
Kernel Version: 2.6.36
Subsystem:
Regression: Yes
Bisected commit-id:

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Description Jorge Boncompte 2010-11-17 11:59:46 UTC 
qemu-kvm 0.12.5 and 0.13.0 from debian and compiled from sources segfaults for me on a vanilla 2.6.36 64bit kernel and debian squeeze 32bit userspace.

	Doing a bisection resulted on commit 9581d442b905 (KVM: Fix fs/gs reload oops with invalid ldt), reverting it fixes the problem and survived a new debian-amd64 install.

	Regards,
		Jorge
Comment 1 Rafael J. Wysocki 2010-11-17 21:03:22 UTC 
First-Bad-Commit : 9581d442b905
Comment 2 Avi Kivity 2010-11-20 13:06:30 UTC 
Fixed upstream (c8770e7ba63bb5dd); patches to be posted for 2.6.36.
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