Bug#761165: vlc: segmentation fault with VDPAU

[Bálint Réczey]

2014-10-20 18:43 GMT+02:00 Rémi Denis-Courmont <remi at remlab.net>:
> Le mardi 21 octobre 2014, 02:13:00 Arthur Marsh a écrit :
>> Package: vlc
>> Version: 2.2.0~pre4-1+b1
>> Followup-For: Bug #761165
>>
>> Dear Maintainer,
>>
>> *** Reporter, please consider answering these questions, where appropriate
>> ***
>>
>> See also bug report 766058.
>>
>> After running vlc under valgrind both with default options and with
>> helgrind, I found the video terminated at the 9 second mark with default
>> options but continued playing back very slowly with the helgrind option,
>> which someone in #radeon in IRC suggested was a thread race condition in
>> vlc.
>
> The helgrind log there suggests a race condition in the Mesa VDPAU´s internal
> buffer object management to me.
>
> And please don´t use VLC with Bellagio. The only tested software decoder is
> libav(codec).
There is an other bug for XBMC which also looks like to be triggered
by a race condition related toVDPAU:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=742896#201

CC-ing mesa maintainers.

Cheers,
Balint