[Bug 201149] kvm vhost cause kernel crash on CentOS 7.2.1511

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https://bugzilla.kernel.org/show_bug.cgi?id=201149

Li Zhijian (lizhijian@xxxxxxxxxxxxxx) changed:

           What    |Removed                     |Added
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                 CC|                            |lizhijian@xxxxxxxxxxxxxx

--- Comment #1 from Li Zhijian (lizhijian@xxxxxxxxxxxxxx) ---
I had a similar calltrace with 3.10.0-327 kernel where some logs indicate:

[53012179.742195] Oops: 0002 [#1] SMP 
...
[53012181.153015] RIP: 0010:[<ffffffff810b192e>]  [<ffffffff810b192e>]
dequeue_task+0x5e/0xa0

crash> dis -l dequeue_task+94 5
0xffffffff810b192e <dequeue_task+94>:   add    $0x10,%rsp
0xffffffff810b1932 <dequeue_task+98>:   pop    %rbx
0xffffffff810b1933 <dequeue_task+99>:   pop    %rbp
0xffffffff810b1934 <dequeue_task+100>:  retq   
0xffffffff810b1935 <dequeue_task+101>:  nopl   (%rax)

but the assembly isn't a memorry access which is not consistent with where
'Oops: 0002' said.

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