[Bug 60802] Corruption with DMA ring on cayman

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=60802

--- Comment #19 from Alexandre Demers <alexandre.f.demers at gmail.com> ---
(In reply to comment #18)
> Ok, just finished bisecting, this is the first commit with the dmesg errors:
> 
> e110c98cae0ceae47db6cf26c08707505ce92479 is the first bad commit
> commit e110c98cae0ceae47db6cf26c08707505ce92479
> Author: Alex Deucher <alexander.deucher at amd.com>
> Date:   Sun Jan 27 22:13:52 2013 -0500
> 
>     r600g: don't emit WAIT_UNTIL on cayman/TN (v2)
>     
>     It shouldn't be needed and older kernels don't support
>     it.
>     
>     v2: Replace with PS partial flush as before.
>     
>     Fixes:
>     https://bugs.freedesktop.org/show_bug.cgi?id=59945
>     
>     Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
>     Reviewed-by: Marek Olšák <maraeo at gmail.com>
> 
> And if I remember correctly I first noticed it with kernel 3.7.5 or 3.7.6,
> but I thing this was also around the time this mesa commit was pushed so it
> may have nothing to do with this kernel versions.

I'll double check if I'm getting the same thing as you. If this is right, we
should open a different bug to track it.

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