Re: [PATCH] KVM: page_track: fix access to NULL slot

2016-03-22 Thread Xiao Guangrong
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: [] kvm_page_track_is_active+0x17/0x60 [kvm] [ 131.850500] PGD 0 [ 131.852763] Oop

[PATCH] KVM: page_track: fix access to NULL slot

2016-03-22 Thread Paolo Bonzini
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: [] kvm_page_track_is_active+0x17/0x60 [kvm] [ 131.850500] PGD 0 [ 131.852763] Oops: [#1] SMP [ 132.007188] task: 880075f