[mythtv] [mythtv-commits] Ticket #5356: Internal DVD playback segfaults using multiple cores.
John
reidjr at btconnect.com
Tue May 13 22:11:00 UTC 2008
MythTV wrote:
> #5356: Internal DVD playback segfaults using multiple cores.
> --------------------+-------------------------------------------------------
> Reporter: john | Owner: awithers
> Type: defect | Status: closed
> Priority: minor | Milestone: unknown
> Component: mythtv | Version: 0.21-fixes
> Severity: medium | Resolution: worksforme
> Mlocked: 0 |
> --------------------+-------------------------------------------------------
> Changes (by skamithi):
>
> * status: new => closed
> * resolution: => worksforme
> * component: mythvideo => mythtv
>
>
> Comment:
>
> traceback appears to be on mmx functions. I think this is a system
> problem. perhaps your kernel is not configured correctly or mythtv is not
> compiled with the correct options. i have a dual-core frontend and dual
> core dev laptop. both of which have no issues when i select cpu = 2, and
> this is my default setting.
>
> unless someone else reports the same issue, i'm going to mark this as a
> worksforme. I had problems once on my dual core frontend when I compiled
> mythtv with the pentiumpro option by mistake instead of pentium4 (32bit
> kernel). opengl vsync stopped working properly causing all sorts of hangs
> and lockups. when i compiled it with the correct cpu type, everything
> works like a champ.
>
>
Before you close this out, the fault is seen on vanilla ubuntu packages,
on default mythbuntu installs, as well as the svn build of 0.21-fixes I
used to generate the backtrace. I see the same thing on both of my dual
core machines (both e4300), all using default setups, apart from the cpu
=2 setting. I have no problems playing back BBC-HD, or any other SD
recordings, but I am seeing this on some but not all DVD isos.
Thanks for looking at it.
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