mpd sometimes hangs the whole system?

Alex Povolotsky tarkhil at webmail.sub.ru
Mon Feb 19 18:24:17 UTC 2007


Max Laier wrote:
> [ Removing -stable from CC ]
>
> On Monday 19 February 2007 15:57, Alex Povolotsky wrote:
>   
>> mpd (fresh) on FreeBSD 6.1p12 sometimes hangs system, totally, to
>> reset. Tried two completely different boxes, so it cannot be a hardware
>> problem.
>>
>> I'm updating to 6.2 now, but have little hope. What can I turn on in
>> kernel to fix it or at least to make computer reboot?
>>     
>
> How do you figure it's mpd related?  Did you collect *any* debugging 
> information at all?  How about enabling DDB and WITNESS?  A "hanging" 
> system usually suggests a deadlock.  WITNESS should turn up possible 
> causes.  Also, could you check if setting debug.mpsafenet=0 in 
> loader.conf helps?
>
>   
Well, I'll try new kernel tomorrow; I've rebuild non-SMP kernel, so 
mpsafenet should not be of any use?

Alex.



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