[dm-devel] BUG: unable to handle kernel paging request

[Igor Druzhinin]

On 29/09/17 16:08, Mike Snitzer wrote:
> On Thu, Sep 28 2017 at  7:19pm -0400,
> Igor Druzhinin <igor.druzhinin at citrix.com> wrote:
> 
>> On 28/09/17 21:17, Mike Snitzer wrote:
>>>
>>> Anyway, the issue you're talking about was also fixed, just not sure of
>>> the fix right now but will keep looking.
>>>
>>> See: https://www.redhat.com/archives/dm-devel/2016-February/msg00073.html
>>>
>>> Could be the various fixes that Bart did to cope with queue teardown
>>> races.
>>
>> Do you mean those fixes?
>>
>> https://www.spinics.net/lists/linux-scsi/msg101312.html
> 
> Yes, but there have been _a lot_ of fixes and performance improvements
> to DM multipath's blk-mq support independent of those fixes (fixes range
> from SCSI, to block core to DM core, to DM multipath).
> 
> Trying to make a "stable" 4.4 kernel have all the fixes is a noble task
> but I have no interest in taking it on.  Nor do I have time to coach you
> (or others) through it.
> 
> Just rebase to a newer kernel!  (Sorry)

Ok, thank you for the reply.

This was actually my initial concern - the changes are substantial and
depend on each other. I just wanted to check if there is any "targeted"
fix that I'm not aware of or unable to recognize.

Igor