[libvirt] Segfault problem with nwfilter-define in Libvirt

[Jean-Charles]

Le 09/08/2012 08:22, Laine Stump a écrit :
> On 08/08/2012 12:40 PM, [Vo2Labs] Jean-Charles Passard wrote:
>> Hello,
>>
>> At first a big thanks to Laine, who kindly tried to help me !
>>
>> My problem is the following :
>>
>> I use a linux from scratch distro ( home made)
>> pure X86_64
>> glibc 2.10.1
>> gcc 4.4.1
>> uname -a SMP Sat Aug 4 20:07:49 CEST 2012 x86_64 x86_64 x86_64 GNU/Linux
>>
>> Each time I use nwfilter-define, libvirtd crash with a segfault. I
>> tried nearly all version from 0.9.8 to 0.9.13 and even 0.10 with the
>> same problem
>> Here is a sample of newfilter.xml :
>>
>> <filter name='nova-base'>
>>          <filterref filter='no-ip-spoofing'/>
>> </filter>
>>
>> and here the bt unde gdb with v0.9.13
>>
>> #0  __pthread_mutex_lock (mutex=0x0) at pthread_mutex_lock.c:50
>> #1  0x00007ffff77ba07e in virNWFilterCallbackDriversLock () at
>> conf/nwfilter_conf.c:2846
> I'm just doing a test build of a patch to fix this, and I'll send it as
> a reply to this message when I'm done. (It contains a full explanation
> of the cause of the crash).
>
> Thanks for the complete bug report Jean Charles! This was fun to debug :-)
>
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Hello Laine,

Thank you very much for this great work ! I just tried your patch and it 
works great, no more problem.
And if you'd fun it's 'la cerise sur le gateau', as we say in my country

JC