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SubjectRe: [REGRESSION 3.17] scsi (uas) disks no longer using tagged command queuing
On Thu, Sep 11, 2014 at 12:01:13PM +0200, Hans de Goede wrote:
> > So we're initializing the tag map, but scsi_activate_tcq doesn't pick it
> > up. I can't really come up with a good explanation for it, but there
> > even without that there is an elephant in the room: as part of the
> > scsi-mq series I moved the bqt field used for this into a union with the
> > new blk_mq_tag_set. Below is a patch to get rid of that union, can you
> > try if that fixes it?
>
> Unfortunately that does not fix it :|

Alright, I guess we need the big bisect hammer unfortunately.

We should be able to start with trying the first and last commit
of the big SCSI merge:

start: fcc95a763444017288b318d48367098850c23c0d
end: c21a2c1a4973c8dde32557970fdb44eaa9489aeb



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