[mythtv-users] Mythbackend stops <defunct>
David Campbell
dave at cpfc.org
Wed Apr 4 14:43:42 UTC 2007
Kevin Kuphal wrote:
> I recently upgraded my kernel to 2.6.20.1 from a Redhat 9 system in
> order to move my DVB HD cards from my slave backend into my master
> backend. Everything seems to be working fine except that after a period
> of time (not related to any recording schedule, just after a while) the
> backend will become unresponsive and if I shut it down, it gets stuck as
> a <defunct> process.
>
> Does anyone know what <defunct> means. It does not let go of it's ports
> so I cannot start it back up again and it seems to hold onto the ivtv
> and dvb drivers as well which leads me to believe that it is still
> "alive" in some way.
>
> [root at mythtv root]# ps -elf | grep mythbackend
> 0 R root 11697 11484 0 78 0 - 918 - 09:13 pts/0
> 00:00:00 grep mythbackend
> 5 Z root 12262 1 1 78 0 - 0 exit Apr02 ?
> 00:29:26 [mythbackend] <defunct>
>
> Any help would be appreciated.
It's a zombie process.
Definition: zombie: n. [Unix] A process that has died but has not yet
relinquished its process table slot (because the parent process hasn't
executed a wait(2) for it yet). These can be seen in ps(1) listings
occasionally. Compare orphan.
I get them when something fairly bad happens in myth, usually when
watching live TV.
It sucks/
Dave
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