Random crashing with rc.40 on Linux

[carter at qosient.com]

Hey Jonathan,
I think in this case I'm calling ArgusOpenInterface() incorrectly.  You're reading a file, and you've finished it, so don't open it again!!!  I'll fix that!!!

This is an artifact and not your problem, I suspect!!

Carter

Carter Bullard
QoSient LLC
150 E. 57th Street Suite 12D
New York, New York 10022
+1 212 588-9133 Phone
+1 212 588-9134 Fax  

-----Original Message-----
From: Jonathan Towne <jontow at hijacked.us>
Date: Thu, 8 Mar 2007 10:49:08 
To:argus-info at lists.andrew.cmu.edu
Subject: Re: [ARGUS] Random crashing with rc.40 on Linux

On Thu, Mar 08, 2007 at 10:39:11AM -0500, Jonathan Towne scribbled:
# On Thu, Mar 08, 2007 at 09:58:44AM -0500, Jonathan Towne scribbled:
# # On Thu, Mar 08, 2007 at 02:08:14PM +0000, carter at qosient.com scribbled:
# # [snip]
# # # 
# # #    argus -r dump.file -w out.file
# # # 
# 
# Ok, using the above technique and adding '-ggdb' to the environment
# I've gained the following:
# 
# Program received signal SIGSEGV, Segmentation fault.
# 0x0805223f in ArgusOpenInterface (src=0x8220000, inf=0x8220060) at ArgusSource.c:100
# 100        if ((inf->ArgusPd = pcap_open_live(device->name, src->ArgusSnapLen, !src->Arguspflag, 100, errbuf)) != NULL) {

This segfault I think is invalid in a sense.  With some quick debugging:

Program received signal SIGSEGV, Segmentation fault.
0x0805221f in ArgusOpenInterface (src=0x8220000, inf=0x8220060) at ArgusSource.c:100
100             printf ("device->name: %s\n", device->name);


I think device->name isn't being set properly and so its breaking; doesn't seem like
this is the same segfault that we're seeing with normal use?  Still perhaps a bug.

I'll run a clean debugging-enabled version with a symbol table under gdb and
see what I can find.


-- Jonathan Towne


PS: Sorry to keep replying to myself.  I'll stop now.