segfault at 000000000311c000 rip 000000000040fb46 rsp 0000007fbffff830 error 4

[Gunnar Lindberg]

I'm new to this list and I hope my question is relevant for it. If
the subject has been beaten to death please direct me to the archives.

We have 2 Argus collector machines, each with opto splitters and
2 Myricom 10GbE cards (using only the Rx side, of course). Then a
third machine merging all data.

Recently both collectors have started to report as below (and stopped
collecting data until argus is restarted). It happens roughly once a
day and we're not happy - a litte worse than just annoying.


/var/log/messages (and dmesg)

Apr 28 15:38:07 argc kernel: argus[17240]: segfault at 0000000004a14000 rip 000000000040fb46 rsp 0000007fbffff830 error 4
Apr 28 15:18:42 argc kernel: argus[16262] general protection rip:3fabc696bd rsp:7fbffff5c0 error:0

Apr 29 15:50:21 argv kernel: argus[2511]: segfault at 000000000311c000 rip 000000000040fb46 rsp 0000007fbffff830 error 4
Apr 29 16:35:20 argv kernel: argus[2641] general protection rip:40efbf rsp:7fbffff778 error:0


Bad memeory?


	Gunnar Lindberg, IRT,
	Chalmers University of Technology,
	Gothenburg, Sweden


Argus source
-rw-rw-r--   1 xxxx xxxx   400426 May 22  2008 argus-3.0.0.tar.gz

Hardware is Dell 2950.

OS is RHEL Linux
/etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant Update 7)

# /bin/uname -a
Linux argc.irt.chalmers.se 2.6.9-78.0.13.ELsmp #1 SMP Wed Jan 7 17:45:52 EST 2009 x86_64 x86_64 x86_64 GNU/Linux

# /bin/arch
x86_64

gcc (GCC) 3.4.6 20060404 (Red Hat 3.4.6-10)

# ldd /usr/local/sbin/argus
        libpcap.so.0.8.3 => /usr/lib64/libpcap.so.0.8.3 (0x0000003fac900000)
        libwrap.so.0 => /usr/lib64/libwrap.so.0 (0x0000003fabf00000)
        libnsl.so.1 => /lib64/libnsl.so.1 (0x0000003fb3c00000)
        libm.so.6 => /lib64/tls/libm.so.6 (0x0000002a9557d000)
        libc.so.6 => /lib64/tls/libc.so.6 (0x0000003fabc00000)
        /lib64/ld-linux-x86-64.so.2 (0x0000003faba00000)
lrwxrwxrwx  1 root root 16 Jan 15 11:26 /usr/lib64/libwrap.so.0 -> libwrap.so.0.7.6
-rwxr-xr-x  1 root root 35880 Jun 29  2007 /usr/lib64/libwrap.so.0.7.6
lrwxrwxrwx  1 root root 15 Jan 15 11:25 /lib64/libnsl.so.1 -> libnsl-2.3.4.so
-rwxr-xr-x  1 root root 114976 Apr 15  2008 /lib64/libnsl-2.3.4.so
lrwxrwxrwx  1 root root 13 Jan 15 11:25 /lib64/tls/libm.so.6 -> libm-2.3.4.so
-rwxr-xr-x  1 root root 643240 Apr 15  2008 /lib64/tls/libm-2.3.4.so
lrwxrwxrwx  1 root root 13 Jan 15 11:25 /lib64/tls/libc.so.6 -> libc-2.3.4.so
-rwxr-xr-x  1 root root 1635416 Apr 15  2008 /lib64/tls/libc-2.3.4.so