[mythtv-users] nuvexport and h264 encoding causes BE shutdown

[Nick Rout]

On Tue, Mar 3, 2009 at 6:34 AM, kanetse at gmail.com <kane.tse at gmail.com> wrote:
> Unfortunately, this situation has gotten worse.  Now it appears that
> not only nuvexport; but also watching an HDTV show using MythWeb's
> built in flash player also causes the system to shutdown.
>
> I tried to look at the system logs, but nothing is logged in there.
> The system must be turning off before it gets a chance to write into
> the log.
>
> I did a sample run where I attempting to transcode a program (using
> nuvexport).  It seems that nuvexport quits early due to some error...
> I can see a prompt and type into it.  But it looks like there might be
> a runaway process; because the backend then powers off 5 to 10 minutes
> later.
>
> The whole time I'm slowly watching my CPU temps crawl upwards.
>
> My thoughts are that some software component (ffmpeg? or other) is not
> properly installed or has a bug in it and I need to upgrade it.  But I
> don't know which one or how to track it down.
>
> I'm fairly confident it's not a hardware issue - because it only
> powers off if I send it an HDTV transcoding job.  In other usage, this
> box has simultaneously recorded 2 HD, 2 SD streams, while
> comm-flagging and playing back 1 HD show with a Windows XP virtual
> machine running at the same time without overheating.
>
> I seem to be able to playback SD content in the mythweb flash player
> without any shutdowns.  The biggest problem is that I don't want the
> system to shutdown on me during prime-time, while it's recording.
>
> This is on CentOS 5.2 x64.

I know you don't think it is overheating, but have you given the
heatsinks and fans a good clean?