[Oisf-devel] Segmentation fault on the latest Suricata beta

[Victor Julien]

On 02/07/2014 05:56 PM, Duarte Silva wrote:
> Hi Victor,
> 
> I have come to a conclusion about this. The fact that Suricata is compiled 
> with stack protection and position independent code, doesn't seem to have 
> anything to do with the issue in hand.
> 
> Actually, that specific segmentation fault did not happened again (another one 
> did, I didn't compare back traces correctly :/).
> 
> Anyway, the new segmentation fault still happens on master, at least, up to 
> commit 3967bd5517e7ab57fd82d7ce9b70dac16057b8f7. Issue opened at [1].

This is very interesting. It looks like 2 packet processing threads have
the same flow. This is not supposed to happen.

You are using workers, correct?

In gdb, can you do:

thread 4
frame 4
print *p
print *p->flow

and

thread 5
frame 5
print *p
print *p->flow


This will print the contents of both packets in T4 and T5, which ref the
same flow.

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Victor Julien
http://www.inliniac.net/
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