[mythtv-users] mythtv hard lockup

Kevin Kuphal kuphal at dls.net
Thu Dec 21 02:15:27 UTC 2006

R. G. Newbury wrote:
> David Rees wrote:
>> On 12/18/06, Brad DerManouelian <myth at dermanouelian.com> wrote:
>>> I've also recently experienced the frontend becoming completely
>>> unresponsive. I can ssh in, but can't kill -9 the process. Even a
>>> reboot fails. I have to hit the reset button to get the machine back.
>> That failure mode suggests an X/Nvidia problem to me, especially if
>> you are using OpenGL in your themes... can you confirm?
> I am not using OpenGl but I sometimes get frontend lockups if I attempt 
> too many changes/presses on the remote. Particularly dangerous is 
> attempting to go from rewind to forward, pr vice versa following an 
> overshoot. The frontend locks solidly. NOTHING works, except the backend 
> will happily continue to record programs and later examination shows 
> that commflagging has run etc. etc...but it will be in the same state in 
> the morning and only a 'big red switch' reboot will kill it. And the log 
> shows NOTHING.
Generally speaking, hard lockups are not cause by userland applications, 
but drivers running and a lower level to the hardware.   This could be 
LIRC, nvidia, IVTV, or any other kernel level driver you are running.


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