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| Kernel crash on heavy Gigabit load https://powerdeveloper.org/forums/viewtopic.php?f=7&t=1388 |
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| Author: | judas [ Tue Oct 02, 2007 12:27 pm ] |
| Post subject: | Kernel crash on heavy Gigabit load |
Hi, I'm using Debian 4.0r0 kernel 2.6.18. Whenever gigabit (marvell) is stressed a lot ( with netcat or ftp), I get about 30Mb/s, which is nice. Unfortunately, the system locks or even reboots after a few minutes. I experienced the same prob on Suse10.2 and later, but not on Suse10.1. Is there hope on later kernels or is the bug still present ? ( Note: I'm sure, it's no hardware problem, as the machine performs perfect over hours with suse10.1.. and all of my 3 Peg2's behave the same.) |
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| Author: | SoundSquare [ Tue Oct 02, 2007 3:05 pm ] |
| Post subject: | |
i had quite the same issue having 1,5 Gb of Ram in the Pegasos2. Removing 512Mb fixed it. But i suppose you're on a different story. |
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| Author: | judas [ Sun Oct 07, 2007 8:47 am ] |
| Post subject: | |
It's a kernel bug. I experienced the crash on Suse10.2, but not on Suse 10.1. (But also on Debian, Ubuntu and some others.) As Suse 10.3 with it's very new kernel seems to work perfectly with gigabit again, I'll try 2.6.22 on debian to try whether it's fixed there, too. |
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| Author: | Chain-Q [ Mon Oct 08, 2007 8:22 am ] |
| Post subject: | Re: Kernel crash on heavy Gigabit load |
Quote: Unfortunately, the system locks or even reboots after a few minutes. I experienced the same prob on Suse10.2 and later, but not on Suse10.1.
I had the same on my Peg2 with 1GB RAM, running Debian Etch. I upgraded to 2.6.21.4, and that fixed it. But 2.6.18 kernel was highly unstable for me, even without the use of the GBit eth. I changed, and all problems gone:Is there hope on later kernels or is the bug still present ? Code: charlie@stronghold:~$ uname -a
Previous record uptime with 2.6.18 (stock Debian 4.0r0 kernel) was 4 days:Linux stronghold 2.6.21.4 #3 Mon Jul 2 13:45:38 CEST 2007 ppc GNU/Linux charlie@stronghold:~$ uptime 16:29:02 up 29 days, 2:32, 11 users, load average: 0.06, 0.06, 0.01 Code: charlie@stronghold:~$ uprecords | grep 2.6.21 | head -1
... and usually it crashed within one day:1 40 days, 18:46:28 | Linux 2.6.21.4 Thu Jul 26 18:54:27 2007 charlie@stronghold:~$ uprecords | grep 2.6.18 | head -1 6 4 days, 07:21:10 | Linux 2.6.18-4-powerpc Sat Jun 2 02:04:48 2007 Code: charlie@stronghold:~$ uprecords -m 10000 -B | grep 2.6.18 | grep "0 days" | head -5
Sarge was totally stable on the same machine. So it seems like the some kernel versions (most probably versions between 2.6.15 and 2.6.20?) has serious stability issues on a Pegasos 2...
14 0 days, 05:05:50 | Linux 2.6.18-4-powerpc Sun Jun 24 04:50:09 2007 15 0 days, 07:09:16 | Linux 2.6.18-4-powerpc Sat Jun 23 21:37:11 2007 16 0 days, 02:34:38 | Linux 2.6.18-4-powerpc Sat Jun 23 18:58:23 2007 17 0 days, 00:52:28 | Linux 2.6.18-4-powerpc Sat Jun 23 17:13:59 2007 20 0 days, 00:30:16 | Linux 2.6.18-4-powerpc Tue Jun 19 19:29:40 2007 |
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