Re: Fix for 84676c1f (b5b6e8c8) missing in 4.14.y

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> On 10 Aug 2018, at 03:15, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> 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.

Thanks,
Felipe


> 
> thanks,
> 
> greg k-h





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