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Re: [libvirt] Segfault problem with nwfilter-define in Libvirt

Le 09/08/2012 08:22, Laine Stump a écrit :
On 08/08/2012 12:40 PM, [Vo2Labs] Jean-Charles Passard wrote:

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'/>

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
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 :-)

libvir-list mailing list
libvir-list redhat com
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


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