[Bug 82517] [RADEONSI,VDPAU] SIGSEGV in map_msg_fb_buf called from ruvd_destroy, when closing a Tab with accelerated video player

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Aug 13 05:27:47 PDT 2014


https://bugs.freedesktop.org/show_bug.cgi?id=82517

Christian König <deathsimple at vodafone.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

--- Comment #6 from Christian König <deathsimple at vodafone.de> ---
(In reply to comment #5)
> (Or maybe you can reproduce it on your end? Just pick one recored broadcast
> from Twitch, e.g.
> <http://www.twitch.tv/carbotanimations/b/557380266?t=1h01m> and it should
> segfault)

Took me a while, but I was able to reproduce the problem and take a complete
log.

> Another observation I made: if you run a YouTube video in the backgrund in
> parallel to e.g. opening
> <http://www.twitch.tv/carbotanimations/b/557380266?t=1h01m>, then suddenly
> Flash is not crashing. I traced VDPAU with a YT video running in the
> background and attached the file to this post.

No wonder that it crashes, what flash does here is destroying the device first
and then trying to destroy the decoder who depends on the device:

vdp_device_destroy(1)
vdp_decoder_destroy(2)

Sounds like a bug in flash to me, but on the other hand the VDPAU state tracker
shouldn't crash, but just return an error here.

Going to take a look into the code if we can't fix that somehow.

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