[mythtv-users] Mythtv and kernel 2.6.25

Mario Limonciello mario.mailing at gmail.com
Sun Jun 15 23:05:36 UTC 2008

Alexander Petkov wrote:
> Qute:
> ================
> Hi,
> I am having problems to make mythtv work with kernel 2.6.25 (Fedora 8).
> The problem seems to be my capture card, a Prolink Pixelview.
> Myth starts just fine, but the first time I choose LiveTV,
> mythfrontend becomes unresponsive. If I press 'esc' to go back,
> it takes 30 seg to return to the main menu, and I have to kill the frontend.
> After that, mythbackend can not be restarted or killed (there is a defunct
> myth process running).
> If I reboot the computer, the partitions are busy (can not be unmounted
> cleanly).
> Going back to kernel 2.6.24, everything works just fine. I have been using
> this card for years
> with myth just fine. I can also play TV using mplayer without any issue on
> kernel 2.6.25.
> Therefore, the problem seems to be really the interaction between mythtv and
> my card.
> ==============
> End quote
> I am experiencing the very same symptoms after upgrading to kernel 2.6.25.
> Initally, I get the "Strange error flushing buffer" mesage. Afterwards
> I cannot restart the backend. I m using an Avertv and hauppage bttv
> cards. Going back to kernel 2.6.24 brings things back to a working
> mythtv system.
> Any ideas?
> Alex
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> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
There was a similar issue in a patch related to scheduling on Ubuntu's 2.6.24.
In between ABI bumps from 2.6.24-16 to 2.6.24-17 it got resolved by pulling a patch.

I suspect the scheduler for 2.6.25 was pulled into Ubuntu, and then when there
was a realization that it was broke, then the patch was added.

Mario Limonciello
mario.mailing at gmail.com

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