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Old 06-22-09, 06:39 AM   #7
paix
Registered User
 
Join Date: Jun 2009
Posts: 7
Default Re: CentOS 5.2 network bugs, kernel panic (forcedeth, MCP67)

Quote:
Originally Posted by whig View Post
Post the results of this command in the problem condition
Code:
top -b -n 1
the NIC completely freeze a server. I even can't reboot the server through IPKVM

I've stressed the NIC today by iperf package (from epel. Description: Iperf is a tool to measure maximum TCP bandwidth) and got the panic.

The screenshot from IPKVM here: http://paix.org.ua/tmp/panic_220609.jpg
Unfortunately there isn't any interesting info to identify the problem.

The kernel was loaded with

Code:
kernel /vmlinuz-2.6.18-128.1.1.el5.028stab062.3 ro root=/dev/VolGroupSys/LogVolRoot crashkernel=128M@16M nousb noapic debug=2
and
Code:
options forcedeth optimization_mode=1
Code:
 # dmesg |grep forcedeth
forcedeth.c: Reverse Engineered nForce ethernet driver. Version 0.62-Driver Package V1.25.
forcedeth: using HIGHDMA
eth0: forcedeth.c: subsystem: 01043:82b3 bound to 0000:00:0a.0
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