From: Xiao Guangrong <guangrong.xiao@linux.intel.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH] KVM: page_track: fix access to NULL slot
Date: Wed, 23 Mar 2016 10:21:15 +0800 [thread overview]
Message-ID: <56F1FD9B.6030705@linux.intel.com> (raw)
In-Reply-To: <1458664809-4129-1-git-send-email-pbonzini@redhat.com>
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>
prev parent reply other threads:[~2016-03-23 2:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-22 16:40 [PATCH] KVM: page_track: fix access to NULL slot Paolo Bonzini
2016-03-23 2:21 ` Xiao Guangrong [this message]
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