[openib-general] Race in mthca_cmd_post()

John Partridge johnip at sgi.com
Tue Oct 17 15:38:41 PDT 2006


I'm going back and comparing analyzer traces with the fix and without and the
machine doing an MCA.

John

Roland Dreier wrote:
>     chas> i would guess the read to the mmio region is flushing the
>     chas> writes to the config register but the read happens "too
>     chas> soon" after those writes.  on a more mundance computer, the
>     chas> write/write/read probably wouldnt be batched together.
> 
> config writes can't be posted though, so that doesn't make sense.
> 
>  - R.


-- 
John Partridge

Silicon Graphics Inc
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