Re: I have currently got a server that is running 99% cpu on one of my servers

["Alex Kramarov" <alex incredimail com>]

>From my experience this crash is not frequent, last time i had this it
happened two month ago. Right now i just want Ingo to be able to see what's
going on there. what you do below is a workaround, it's not a fix. There are
people who do refuse to use tux before this problem is resolved, and we
should all work together to solve it.

Alex.
----- Original Message -----
From: "Seok Chan LEE" <chan@blurryeyes.com>
To: <tux-list@redhat.com>; <mingo@elte.hu>
Sent: Monday, March 25, 2002 11:21 AM
Subject: RE: I have currently got a server that is running 99% cpu on one of
my servers


> Hmm..
>
> My servers has gone to 99.9% cpu usage too. but they work
> fine now with some work-arounds. Five RH7.2 + TUX servers never
> crashed for last 3 weeks.
>
> My servers have
> - Intel 8255x-based NICs
> - Dual 1Ghz CPUs on STL2 boards
>
> I've tried with the following workarounds. I din't find what's the problem
> or what's the right work-around. Sorry, I'm lazy.
>
> #1, Upgrade your BMC Firmware to 1.19
>
> If you're using STL2 board and the BMC firmware is older than 1.19,
> you must upgrade it to the latest. Old BMC firmware has a bug
> with handling WOL packets. Sorry, I don't know why this is
> necessary. For more information, please see "#19 TCO packet
> Processing Issue on Intel STL2 Server Boards" of
>
>
ftp://download.intel.com/support/motherboards/server/stl2/spec_update.pdf
>
http://support.intel.com/support/motherboards/server/stl2/latest_bios.htm
>
http://downloadfinder.intel.com/scripts-df/Detail_Desc.asp?ProductID=464&Dwn
ldID=2829
>
> #2. Turn off "WOL (Wakeup-On-Lan)" feature of Intel NIC
>
> If you're using Intel 8255x-based NIC, you had better turn off
> WOL. Run "brow.exe -all -be -wold -lwsd"
>
>
http://downloadfinder.intel.com/scripts-df/download.asp?url=/1305/eng/100PUT
IL.EXE
>
> #3. Use "e100" from intel, instead of "eepro100"
>
> I've read some articles that eepro100 doesn't handle heavy traffic.
> You may obtain Intel-supported "e100" driver. I use 1.8.37 Linux version.
>
>
http://appsr.intel.com/scripts-df/Detail_Desc.asp?ProductID=60&DwnldID=2896
>
> unix$ cat /etc/modules.conf
> alias ...
> alias eth0 e100 RxDescriptors=369 TxDescriptors=512
>
> #4. Fix some typo of tux source
>
> I've made a patch for tux. (Sorry, I don't know this is right thing -_-)
>   http://fischer.blurryeyes.com/~chan/tux/linux-2.4.9-tux2-fixes2.patch
>
> If you want to try my kernel rpms, you may download
>   http://fischer.blurryeyes.com/~chan/tux/kernel-2.4.9-31sayclub.src.rpm
>
http://fischer.blurryeyes.com/~chan/tux/kernel-smp-2.4.9-31sayclub.i686.rpm
>
> Before applying 2.4.9-31smp kernel, you had better run redhat "up2date"
> to upgrade tux userspace rpm to 2.2.0-1.
>
> You may also want e100.o (binary one) for the above kernel rpm
>   http://fischer.blurryeyes.com/~chan/tux/intel-driver.tar
>
> Un-tar it under /lib/modules/2.4.9-31smp/kernel/drivers/addon/e100.
>
> > -----Original Message-----
> > From: tux-list-admin@redhat.com
> > [mailto:tux-list-admin@redhat.com]On Behalf Of Alex Kramarov
> > Sent: Sunday, March 24, 2002 2:55 PM
> > To: mingo@elte.hu; tux-list@redhat.com
> > Subject: I have currently got a server that is running 99%
> > cpu on one of my servers
> >
> >
> > there is a debug log on 212.179.48.90/messages .
> >
> > Mingo, please contact me if you want to take a look into that
> > machine (or if
> > you don't - i don't want to let this machine go like this for
> > a long time).
> > I do not have kernel profiling enabled on it. tux compiled as
> > a module into
> > vanilla 2.4.17 kernel.
> >
> > Alex.
> >
> >
> >
> > _______________________________________________
> > tux-list mailing list
> > tux-list@redhat.com
> > https://listman.redhat.com/mailman/listinfo/tux-list
> >
>
>
>
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