[openib-general] Kernel Oops in user-mad, mad

[Hal Rosenstock]

On Sun, 2006-10-01 at 05:53, Jack Morgenstein wrote:
> We received the following kernel Oops while running regression
> (see console picture attached).
> 
> This looks like a possible race condition between handling umad send completions
> and ib_unregister_mad_agent.
> 
> The Oops is at the list_del line of dequeue_send (user_mad.c: 186)
> Note that ib_unregister_mad_agent invokes unregister_mad_agent->cancel_mads -> agent send handler.
> 
> Is there a possibility that there is a double deletion from a list somewhere?

Perhaps but I don't see it. Sean ? Roland ?

-- Hal

> Jack