[openib-general] completion Q overflow error/panic

[Viswanath Krishnamurthy]

Some more info..

This also happens in the kernel level. I have a small kernel module which 
does the echo
reply. After about 100-200 connections, I start to see the following message

ib_mthca 0000:05:00.0: SQ 590473 full (8 head, 0 tail, 8 max, 0 nreq)
ib_mthca 0000:05:00.0: SQ 590477 full (8 head, 0 tail, 8 max, 0 nreq)
ib_mthca 0000:05:00.0: SQ 59040c full (8 head, 0 tail, 8 max, 0 nreq)

Below 100 connections I do not see any such messages. 

Looks like if there is problem, it exists in both kernel and userland API's.

-Viswa




On 9/9/05, Roland Dreier <rolandd at cisco.com> wrote:
> 
> Thanks for the excellent bug report. I'll try your code and see if I
> can reproduce the problem. If I can, then I should be able to fix the
> bugs.
> 
> - R.
>
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