Re: mutex_lock_real: Managed to lock the mutex twice!

to add to the case, the debug logs just before that shows that the  
next line which is done is creating a thread.
So a debug in that process creates the crash.

On 19.05.2007, at 01:04, Andreas Fink wrote:

> folks,
>
> I'm having an issue while using gwlib.
> Under heavy load under multi CPU systems (intel and powerpc), We're  
> seeing the error "mutex_lock: Managed to lock the mutex twice!"
>
> The issue is that it is being called by a normal debug() statement.
>
> The only mutex lock generated in debug()  is gwlist_lock(writers)  
> and I have so far not been able to figure out any theoretical  
> scenario where this could occur except when debug would call debug  
> again but this can not happen. It can call panic  under some rare  
> scenario which would then lock again but we already fixed that by  
> having panic not considering locking writers (there's no point as  
> we will exit afterwards immediately anyway).
>
> Anyone have a hint?
>
>
> Andreas Fink
>
> Fink Consulting GmbH
> Global Networks Schweiz AG
> BebbiCell AG
>
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>
>
>
>
>



Andreas Fink

Fink Consulting GmbH
Global Networks Schweiz AG
BebbiCell AG

---------------------------------------------------------------
Tel: +41-61-6666330 Fax: +41-61-6666331  Mobile: +41-79-2457333
Address: Clarastrasse 3, 4058 Basel, Switzerland
E-Mail:  [email protected]
www.finkconsulting.com www.global-networks.ch www.bebbicell.ch
---------------------------------------------------------------
ICQ: 8239353 MSN: [email protected] AIM: smsrelay Skype: andreasfink
Yahoo: finkconsulting SMS: +41792457333