segfault at 000000000311c000 rip 000000000040fb46rsp 0000007fbffff830 error 4

[Gunnar Lindberg]

Great, thanks. First thing monday.

Then, it's quite infrequent. Less than once a week by now. Which is
partly why my 0.0c is for strange packet data (I do part time IRT
work and expect packets with every illegal combination of flag bits).

I have another idea to possibly catch the current/last packet, if
we encounter similar crashes again (most/all packets will pass via
ArgusGetPackets() so that should hold at most times). My plan is
to move these declarations to the beginning of ArgusGetPackets(),
i.e. have gdb be able to print the last packet data. Of course the
buffer could also be damaged, but maybe enough is left to deduce
what it was.

Is there any reason not to do this (there seems to be two occurences
of these and I wll simply comment them both)?

   2126 /* libpcap workaround */
   2127                      struct pcap_pkthdr *header;
   2128                      const u_char *pkt_data;

	Gunnar Lindberg

>From carter at qosient.com  Fri May 29 17:03:44 2009
>Cc: argus-info at lists.andrew.cmu.edu
>Message-Id: <40529AC8-3FFC-456A-892F-F9184A488D85 at qosient.com>
>From: Carter Bullard <carter at qosient.com>
>To: Gunnar Lindberg <Gunnar.Lindberg at chalmers.se>
>In-Reply-To: <200905291313.n4TDDIsO007386 at grunert.cdg.chalmers.se>
>Subject: Re: [ARGUS] segfault at 000000000311c000 rip 000000000040fb46rsp	0000007fbffff830 error 4
>Date: Fri, 29 May 2009 11:03:28 -0400
>References: <200905291313.n4TDDIsO007386 at grunert.cdg.chalmers.se>

>Hey Gunnar,
>Your problems are so fundamental, crash here, there, everywhere,
>all with memory corruption, that it seems clear that you do not
>have a standard problem (how could anyone use this software
>with these kinds of issues).  Some 64-bit machines do weird things,
>so..........

>Apply this patch and completely rebuild the argus distribution:

>*** argus_out.h	Wed Feb 25 01:22:20 2009
>--- argus_out.h.new	Fri May 29 11:00:31 2009
>***************
>*** 47,60 ****
> ...