[openib-general] Re: uCM kernel oops

[Arlin Davis]

Libor Michalek wrote:

>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.
>>    
>>
>
>  
>
Sorry, I cannot reproduce.

>  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
>
>  
>