Re: IPoIB issues

[Eli Cohen <eli-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>]

On Thu, Mar 11, 2010 at 09:47:31AM +0200, Or Gerlitz wrote:
> >The patch does not address these failures directly but maybe as a
> >side effect they would go away too.
> The patch seems to solve a case of possible "live lock" happening in
> a node which has both CM and datagram neighbors e.g where ipoib have
> called netif_stop etc but there is now room in the QP for more
> postings which could turn into letting the network layer continue to
> post if the CQ would have been polled. Its hard to see how this
> relates to the post send error print
Right, I meant that they could disapear due to the system not getting
into such a state that they will show up but the patch __does not__
address that problem.

> 
> >I think printing the return value is in place so in the future we will have more information in such cases.
> I posted a patch that does this, but I think it missed the 2.6.34
> merge cycle.
> 
Can you push them to OFED-1.5.1? We'll remove the patch later when
it's in the kernel but at least we'll have the information handy
if/when we need it.
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