Re: blk-mq v3.18: Oops during virtio_blk hot-unplug

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On 10.01.2015 02:20, Fam Zheng wrote:
> On Fri, 01/09 15:32, Sebastian Parschauer wrote:
>> Hi Jens,
>>
>> my colleague Eduardo is sporadically seeing an Oops in blk-mq while
>> running continuous virtio_blk hot-plug/hot-unplug tests with I/O to the
>> device within an x86_64 QEMU/KVM 2.0 Debian Wheezy VM.
>>
>> Please find the call trace attached and the full log here:
>> http://paste.ubuntu.com/9691873/
>>
>> The kernel image has been taken from here and is the mainline kernel
>> from tag v3.18:
>> http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.18-vivid/
>>
>> Is there still an issue with block queue freezing?
> 
> This one?
> 
> commit 45a9c9d909b24c6ad0e28a7946e7486e73010319
> Author: Bart Van Assche <bvanassche@xxxxxxx>
> Date:   Tue Dec 9 16:57:48 2014 +0100
> 
>     blk-mq: Fix a use-after-free
> 
> Fam

Yes, pretty much looks like it, thanks!

Cheers,
Sebastian

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