[openib-general] Re: uCM kernel oops

[Libor Michalek]

On Thu, Jul 21, 2005 at 03:03:08PM -0700, Arlin Davis wrote:
> Libor Michalek wrote:
> >On Tue, Jul 19, 2005 at 11:10:56AM -0700, Arlin Davis wrote:
> >
> >>Hi Libor,
> >>
> >>I am running uCM and uAT with uDAPL and occasionally hit the following. 
> >>Can you take a look?
> >
> >  Looks like a race between the destroy command and a DREQ received
> >event. From looking at the code, it looks like it's possible for
> >two threads (cm event and userspace) to call ctx_put at the same
> >time and both try to perform the final zero referece object destroy.
> >Is this easily reproducible? Can you try the following patch?
>
> I am having difficulty reproducing.

  Have you been able to reproduce, and see if this patch fixes the problem?
I'm going to go ahead and check in the patch since it's more correct then
what's there.

-Libor