[dm-devel] [PATCH] scsi-dh-emc: fix activate vs set_params race

Mikulas Patocka mpatocka at redhat.com
Fri Apr 5 21:27:39 UTC 2013



On Thu, 4 Apr 2013, Laurence Oberman wrote:

> I can test it. I have a clarion Cx3
> Will get to it next week, traveling tomorrow
> Laurence
> 
> Sent from my iPhone

OK.

So, enable most debug options in kernel configuration and try the patch.

Mikulas

> On Apr 4, 2013, at 7:11 PM, Mike Christie <michaelc at cs.wisc.edu> wrote:
> 
> > On 04/02/2013 07:09 PM, Mikulas Patocka wrote:
> >> Hi
> >> 
> >> This fixes a possible race in scsi_dh_emc. It is untested because I don't 
> >> have the hardware. It could happen when we reload a multipath device and 
> >> path failure happens at the same time.
> > 
> > 
> > I think this patch is ok. I do not have the hw to test it anymore.
> > 
> > If you wanted to test just to make sure it is safe you should bug Rob
> > Evers. He can help you find a machine in the westford lab that has it
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