Bug 613739 - KVM: PIT: stop vpit before freeing irq_routing (upstream backport)
Summary: KVM: PIT: stop vpit before freeing irq_routing (upstream backport)
Status: CLOSED DUPLICATE of bug 612648
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel
Version: 6.0
Hardware: All
OS: Linux
low
medium
Target Milestone: rc
: ---
Assignee: Red Hat Kernel Manager
QA Contact: Red Hat Kernel QE team
URL:
Whiteboard:
Keywords:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-07-12 18:09 UTC by Marcelo Tosatti
Modified: 2010-07-13 19:34 UTC (History)
0 users

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Clone Of:
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Last Closed: 2010-07-13 19:34:15 UTC


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Description Marcelo Tosatti 2010-07-12 18:09:38 UTC
Fix:
    general protection fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
    ......
    Call Trace:
     [<ffffffffa0159bd1>] ? kvm_set_irq+0xdd/0x24b [kvm]
     [<ffffffff8106ea8b>] ? trace_hardirqs_off_caller+0x1f/0x10e
     [<ffffffff813ad17f>] ? sub_preempt_count+0xe/0xb6
     [<ffffffff8106d273>] ? put_lock_stats+0xe/0x27
    ...
    RIP  [<ffffffffa0159c72>] kvm_set_irq+0x17e/0x24b [kvm]
    
    This bug is triggered when guest is shutdown, is because we freed
    irq_routing before pit thread stopped

    Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
    Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

Comment 2 Marcelo Tosatti 2010-07-13 19:34:15 UTC

*** This bug has been marked as a duplicate of bug 612648 ***


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