[openib-general] Re: [PATCH] SRP: Avoid a potential deadlock

Ishai Rabinovitz ishai at mellanox.co.il
Mon May 1 12:58:50 PDT 2006


On Mon, May 01, 2006 at 11:27:24AM -0700, Roland Dreier wrote:
>     Ishai> Avoid a potential dead-lock.  In srp_disconnect_target
>     Ishai> there is a call to ib_send_cm_dreq and a wait for
>     Ishai> completion If when getting DREP there is no comp no one
>     Ishai> will end this wait
> 
> I thought that after the DREP is received, the CM will go through
> timewait and we will eventually get a TIMEWAIT_EXIT event (with a
> completion).  Am I wrong?  Have you actually seen this deadlock happen
> in practice?
> 
>  - R.

I had a deadlock and I suspected at this. I'm not sure that it was the 
reason for the deadlock.

Vu, What do you think?

-- 
Ishai Rabinovitz



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