[Bug 85421] radeon stalled, GPU lockup, reset and failed on resume; crashed by firefox.

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=85421

--- Comment #22 from Hin-Tak Leung <htl10@users.sourceforge.net> ---
Am just following the advice Alex gave in comment 2(try different versions of
mesa) and reporting on my experience.

It would appear that my problem is orthogonal to what the commit "radeonsi:
Disable asynchronous DMA except for PIPE_BUFFER" was trying to address. That
commit was in 10.3.4/10.3.5 and 10.4.0, and *not* in 10.2.9; but I have had
crashes with 10.3.5 after ~5 days of use, 10.4.0 within a day, and 10.2.9 for
nearly 4 weeks.

10.2.8: two crashes in 6 weeks.
10.2.9: crash after almost 4 weeks.

10.3.3: crash within first day
10.3.4: insufficient data - used it only for a day or two before 10.3.5
10.3.5: crashed after 5 days
10.4.0: crash within first day

My crash-free days with 10.3.x/10.4.0 are measured in days if not hours, but
with 10.2.x is in weeks. I'll continue to switch to a newer mesa as it comes
out, and if I get burned, go back to the longest crash-free version until the
another mesa version comes out.

I think there is a bug with xv (so probably either mesa or glamor; does not
seem to be sensitive to which version) because some videos plays skewed as in
playing a square as:

                   ----------------
                  /              /
                 /              /
                /              /
               /              / 
              /              /
             ----------------

It happens only to certain specific videos (vdpau gl and x11 are fine), so I am
not sure whether it is a bug in mplayer's use of xv, glamor's implementation of
xv, or what. It seems to happens to videos with "Movie-Aspect is 1.xx:1 -
prescaling to correct movie aspect." when played, but not all such videos are
played badly.

I am mentioning this, just in case digging further on that video playing
problem might help fix the crash...

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