FW: kernel panic at high cpu utils

[Ron Cohen]

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Hi
Never received a conformation of my mail below, it would have been
nice to have some kind of acknowledgement. thanks.
To add some more info to the below, the machine is running (almost)
fine with kernel 2.2.25, though it cost me blood to compile it on
RH9 and some elements (ext3, sound driver etc)
are not supported. So the conclusion is that this is a definitely 2.4.x
problem and not an hardware issue. Please let me know how to proceed
from here.

All the best
		_rony

-----Original Message-----
From: Ron Cohen [mailto:[e-mail]]
Sent: 30 June 2003 22:31
To: [e-mail]
Subject: kernel panic at high cpu utils

[1.] One line summary of the problem:
 
   kernel panic under heavy cpu utilization

[2.] Full description of the problem/report:

[3.] Keywords (i.e., modules, networking, kernel):
kernel
[4.] Kernel version (from /proc/version):

Linux version 2.4.21 (root@pchome) (gcc version 3.2.2 20030222 (Red Hat Linux 3.
2.2-5)) #2 Sat Jun 28 22:53:23 BST 2003

(Also tested with 2.4.20)

[5.] Output of Oops.. message (if applicable) with symbolic information 
     resolved (see Documentation/oops-tracing.txt)

CPU0 Machine check exception 0000000000000004
Kernel Panic: CPU context corrupt
(sysreq does not work) 

[6.] A small shell script or example program which triggers the
     problem (if possible)

running seti@home for a few seconds.

[7.] Environment
asus A7v8x-x, AMD athlon 2100 xp, RH 9.0, Elsa erazor III, 256MB ddr.
, 
[7.1.] Software (add the output of the ver_linux script here)
Linux pchome 2.4.21 #1 Sun Jun 29 16:30:48 BST 2003 i686 athlon i386 GNU/Linux

Gnu C                  3.2.2
Gnu make               3.79.1
util-linux             2.11y
mount                  2.11y
modutils               2.4.22
e2fsprogs              1.32
jfsutils               1.0.17
reiserfsprogs          3.6.4
pcmcia-cs              3.1.31
PPP                    2.4.1
isdn4k-utils           3.1pre4
Linux C Library        2.3.2
Dynamic linker (ldd)   2.3.2
Procps                 2.0.11
Net-tools              1.60
Kbd                    1.08
Sh-utils               4.5.3
Modules Loaded         vfat fat loop lvm-mod

[7.2.] Processor information (from /proc/cpuinfo):

[7.3.] Module information (from /proc/modules):

loop                   11544   0 (autoclean)
lvm-mod                48320   0

[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)
rony@pchome rony]$ cat /proc/iomem
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000f0000-000fffff : System ROM
00100000-0fffbfff : System RAM
  00100000-00244e3d : Kernel code
  00244e3e-0029e903 : Kernel data
0fffc000-0fffefff : ACPI Tables
0ffff000-0fffffff : ACPI Non-volatile Storage
f3000000-f30000ff : VIA Technologies, Inc. VT6102 [Rhine-II]
  f3000000-f30000ff : via-rhine
f3800000-f38000ff : VIA Technologies, Inc. USB 2.0
f4000000-f5efffff : PCI Bus #01
  f4000000-f4ffffff : nVidia Corporation NV5 [Riva TnT2]
f5f00000-f7ffffff : PCI Bus #01
  f6000000-f7ffffff : nVidia Corporation NV5 [Riva TnT2]
f8000000-fbffffff : VIA Technologies, Inc. VT8377 [KT400 AGP] Host Bridge
fec00000-fec00fff : reserved
fee00000-fee00fff : reserved
ffff0000-ffffffff : reserved

[rony@pchome rony]$ cat /proc/ioports
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
0376-0376 : ide1
0378-037a : parport0
037b-037f : parport0
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0cf8-0cff : PCI conf1
b400-b4ff : VIA Technologies, Inc. VT6102 [Rhine-II]
  b400-b4ff : via-rhine
b800-b80f : VIA Technologies, Inc. VT82C586B PIPC Bus Master IDE
  b800-b807 : ide0
  b808-b80f : ide1
d000-d01f : VIA Technologies, Inc. USB (#3)
d400-d41f : VIA Technologies, Inc. USB (#2)
d800-d81f : VIA Technologies, Inc. USB
e000-e0ff : VIA Technologies, Inc. VT8233 AC97 Audio Controller
  e000-e0ff : via82cxxx_audio

[7.5.] PCI information ('lspci -vvv' as root)
See attached 

[7.6.] SCSI information (from /proc/scsi/scsi)
N/A
[7.7.] Other information that might be relevant to the problem
       (please look in /proc and include all information that you
       think to be relevant):

using software raid 1

Installed win2k on a free partition and run seti@home for hours with no problems.

[X.] Other notes, patches, fixes, workarounds:
None

Thanks
	Ron Cohen