kernel panic at high cpu utils

kernel panic at high cpu utils

Post by Ron Cohe » Tue, 01 Jul 2003 23:40:14

[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):
[4.] Kernel version (from /proc/version):

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)

[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)

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

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)
[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

[X.] Other notes, patches, fixes, workarounds:

        Ron Cohen

Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (
Version: 6.0.493 / Virus Database: 292 - Release Date: 25/06/2003

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1. Kernel panic with Cyrix Cx486 S25 CPU (similar to U5 CPU panic)

He resolved his problem by installing an Intel CPU.

I have a Cyrix Cx486 S25 FasCache (Cx486S-25GP) processor that fails in
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   math_emulate: 0010:0010ebb4
   Kernel panic: Math emulation required in kernel
   In swapper task - not syncing

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