Re: [monit] Crash on Ubuntu Hardy when service times out

[Martin Pala]

Hi,

the described problem is fixed in CVS already, we'll release  
monit-5.0.3 tomorrow.

Workaround is to temporarily disable timeout and unmonitor statements  
in monitrc:

  #if <x> restarts within <y> cycles then timeout
  #if <...> then unmonitor


Thanks,
Martin



On May 28, 2009, at 11:04 PM, James Le Cuirot wrote:

> Hi guys,
>
> I'm not entirely sure how to reproduce this but it's happened a few
> times to me today already. If a service times out then Monit aborts
> with the following error. Any subsequent attempts to start Monit will
> give this error and I cannot successfully start it again until I
> delete /var/lib/monit/monit.state.
>
> monit: gc.c:167: gc_event: Assertion
> `pthread_mutex_destroy(&(*e)->mutex) == 0' failed.
>
> There's nothing particularly unusual about my setup. I'm running the
> 64-bit version of Ubuntu Hardy. I'm using Monit 5.0.2, which I built
> from source. I have boat loads of experience in compiling from source
> so I don't think I messed up there. I'm using M/Monit but I doubt
> that's related. I first noticed this when trying the example MySQL
> configuration posted on the Monit wiki.
>
> The only other thing that's worth mentioning is that it's a quad core
> machine and the system is registering 8 CPUs due to hyperthreading
> being enabled by default on Hardy. The error looks concurrency- 
> related.
>
> Regards,
> James
>
>
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