Bug 23062

Summary: kvm segfaults on 2.6.36-64bit kernel with 32 bit userspace
Product: Virtualization Reporter: Jorge Boncompte (jorge)
Component: kvmAssignee: Avi Kivity (avi)
Severity: high CC: avi, benisty.e, florian, jorge, maciej.rutecki, rjw
Priority: P1    
Hardware: x86-64   
OS: Linux   
Kernel Version: 2.6.36 Tree: Mainline
Regression: Yes
Bug Depends on:    
Bug Blocks: 16444    

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.

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.