[dm-devel] Kernel bug triggered in multipath

Christoph Hellwig hch at infradead.org
Sat Mar 15 13:23:36 UTC 2014


On Fri, Mar 14, 2014 at 12:26:15PM -0400, Mike Snitzer wrote:
> On Fri, Mar 14 2014 at 12:21pm -0400,
> Mike Snitzer <snitzer at redhat.com> wrote:
> 
> > I have no problem with this patch, added safety-net and all, but
> > bottomline: if scsi_dh interfaces were being called against a DM
> > multipath request_queue that is a bug.
> 
> Sorry, s/DM multipath request_queue/non-SCSI requeue_queue/
> 
> > In practice that never happens
> > in supported configurations.  AFAICT, Hannes just stumbled upon it cause
> > he was trying to get cciss working with dm-multipath.

What prevents an admin from trying to configure a path selector for a
non-scsi device currently?




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