Re: mythtv segmentation faults - the mystery deepens

That is certainly a strange problem, and I'd be tempted to think that a 
file is somehow getting corrupted.

Maybe you could do a clean install of the rpms, wait for a day and the 
problem to occur and then run something like "find /usr -mtime -1" to 
see if any of the installed files have been modified?

I haven't upgraded my CentOS 6.2 x86_64 combined frontend/backend to 
0.25 yet - hopefully next week.

Steve.

On 19/04/2012 4:30 AM, Jerome Hettich wrote:
> ahhhhrrrg I spoke too soon!
>
> I thought that having removed and reinstalled the 0.25-285 rpms 
> everything was working fine but now after a couple of days running all 
> the mythtv suite of programs *segfault as soon as the program is 
> started *again.
>
> No rpms have been installed or changed
> the box has just been on and has made a few recordings (plus had a few 
> recordings watched and deleted).
>
> What is really strange is that rebooting makes no difference (all the 
> mythtv programs still segfault immediately) but removing and 
> reinstalling the same rpms (0.25-285) as were already installed 
> (again) fixes this!
>
> So can anyone suggest what sort of issue would:
> 1) takes several hours (or days?) to occur (on system which has 
> previously been running stably continuously for over five years)
> 2) once the issue has occurred it will cause *all* mythtv suite 
> (mythfrontend/mythbackend etc) programs to consistently (and 
> immediately) segfault as soon as the program is started
> 3) the issue will persist over restart(s)
> 4) the issue is "cleared" by simply removing and reinstalling the same 
> rpms?
> 5) this issue started occurring at about the 0.24.2-281 went into 
> atrpms-stable (around 9th of April) - but could well due to an update 
> from an unrelated package at around this time....
>
> some traces from mythtvpreviewgen:
>
> strace mythpreviewgen
> http://pastebin.com/JziKdUWG
>
> ldd /usr/bin/mythpreviewgen
> http://pastebin.com/SfDZucGr
>
> strace -eopen mythpreviewgen
> http://pastebin.com/a79TTtxM
>
> as previously any help greatly appreciated (the wife is not to happy 
> with the situation!)
>
> many thanks
>
> Jerome
>
>
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