> On 10 Aug 2018, at 11:32, Greg Kroah-Hartman <[email protected]> 
> wrote:
> 
> On Fri, Aug 10, 2018 at 05:10:52PM +0000, Felipe Franciosi wrote:
>> 
>>> On 10 Aug 2018, at 03:15, Greg Kroah-Hartman <[email protected]> 
>>> wrote:
>>> 
>>> On Fri, Aug 10, 2018 at 10:31:29AM +0800, Ming Lei wrote:
>>>> On Fri, Aug 10, 2018 at 02:09:01AM +0000, Felipe Franciosi wrote:
>>>>> Hi Ming (and all),
>>>>> 
>>>>> Your series "scsi: virtio_scsi: fix IO hang caused by irq vector 
>>>>> automatic affinity" which forces virtio-scsi to use blk-mq fixes an issue 
>>>>> introduced by 84676c1f. We noticed that this bug also exists in 4.14.y 
>>>>> (as ef86f3a72adb), but your series was not backported to that stable 
>>>>> branch.
>>>>> 
>>>>> Are there any plans to do that? At least CoreOS is using 4.14 and showing 
>>>>> issues on AHV (which provides an mq virtio-scsi controller).
>>>>> 
>>>> 
>>>> Hi Felipe,
>>>> 
>>>> Looks the following 4 patches should have been marked as stable, sorry
>>>> for missing that.
>>>> 
>>>> b5b6e8c8d3b4 scsi: virtio_scsi: fix IO hang caused by automatic irq vector 
>>>> affinity
>>>> 2f31115e940c scsi: core: introduce force_blk_mq
>>>> adbe552349f2 scsi: megaraid_sas: fix selection of reply queue
>>>> 8b834bff1b73 scsi: hpsa: fix selection of reply queue
>>>> 
>>>> Usually this backporting is done by our stable guys, so I will CC stable
>>>> and leave them handle it, but I am happy to provide any help for
>>>> addressing conflicts or sort of thing.
>>> 
>>> As the above patches do not apply "cleanly" to the 4.14.y tree at all,
>>> can you please provide a set of backported patches that I can apply?
>> 
>> Actually, adbe552349f2 is already present in 4.14.y. It is commit 
>> e58114824fa6.
>> 
>> If you skip that, all the other three apply cleanly.
> 
> Ok, that works, but there's another bug report of aacraid having
> problems.  Any ideas?

Heya, I actually have no idea which bug you are talking about. TBH I'm only 
experiencing the bug fixed by b5b6e8c8d3b4, which only requires 2f31115e940c. 
(I tested a 4.14 with both commits which resolves the bug.)

I doubt any of that would have any interference with aacraid and should be safe 
backports in that respect.

Thanks,
Felipe

> 
> greg k-h

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