lkml.org 
[lkml]   [2016]   [Mar]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] KVM: page_track: fix access to NULL slot
From
Date


On 03/23/2016 12:40 AM, Paolo Bonzini wrote:
> This happens when doing the reboot test from virt-tests:
>
> [ 131.833653] BUG: unable to handle kernel NULL pointer dereference at (null)
> [ 131.842461] IP: [<ffffffffa0950087>] kvm_page_track_is_active+0x17/0x60 [kvm]
> [ 131.850500] PGD 0
> [ 131.852763] Oops: 0000 [#1] SMP
> [ 132.007188] task: ffff880075fbc500 ti: ffff880850a3c000 task.ti: ffff880850a3c000
> [ 132.138891] Call Trace:
> [ 132.141639] [<ffffffffa092bd11>] page_fault_handle_page_track+0x31/0x40 [kvm]
> [ 132.149732] [<ffffffffa093380f>] paging64_page_fault+0xff/0x910 [kvm]
> [ 132.172159] [<ffffffffa092c734>] kvm_mmu_page_fault+0x64/0x110 [kvm]
> [ 132.179372] [<ffffffffa06743c2>] handle_exception+0x1b2/0x430 [kvm_intel]
> [ 132.187072] [<ffffffffa067a301>] vmx_handle_exit+0x1e1/0xc50 [kvm_intel]
> ...

Thank you for fixing it, Paolo!

Reviewed-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>

\
 
 \ /
  Last update: 2016-03-23 03:41    [W:0.019 / U:0.124 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site