Created attachment 98951 [details]
Radeon deadlock with Flash + VDPAU
1) Enable VDPAU support in flash player 
2) Visit web pages such as  (in that page the hang happens
when the AD has been played and the actual video should start).
At this point the flash player hangs (plugin-container process with firefox), and there's no way to resume it other than killing the parent process.
It seems like a deadlock, see the attached backtrace; not sure if this has something in common with Bug 70123.
This is when using mesa 10.1 (4a86465) in Ubuntu 14.04.
 echo -e "EnableLinuxHWVideoDecode = 1\nOverrideGPUValidation = 1" >> /etc/adobe/mms.cfg
Ah, this is not happening when using intel, then I suppose this is not an issue of the flash blob.
It's not happening with Intel because the drivers don't support VDPAU.
(In reply to comment #2)
> It's not happening with Intel because the drivers don't support VDPAU.
Yes, of course... But I meant using the VDPAU support thought va_gl.
Also if VDPAU is not using mesa, in that case, I guess that if the problem would be in flash, then it would have hanged even when using va_gl, isn't it? :o
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