strange softdog message on 2.4.20 kernel...

From: Matthew Qvapul
Date: Mon Aug 23 2004 - 11:54:39 EST

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Hallo
I have a strange problem with wdt/softdog mechanism on my mashine
`uname -a`:
Linux pikpok2 2.4.20-28.7 #1 Thu Dec 18 11:23:36 EST 2003 i686
unknown

while performing the following operations I get the message which
is at the end of commands sequence:
1) /bin/mknod /dev/watchdog c 10 130
2) /sbin/modprobe softdog soft_margin=900
3) grep "adg" > /dev/watchdog

SOFTDOG: WDT device closed unexpectedly. WDT will not stop!

what is strange I did exactly the same thing on my friend's
mashine, `uname -a`:
Linux klif 2.4.18-18.7.x.a1smp #1 SMP Mon Nov 25 17:39:43 CET
2002 i686 unknown

and there was no message.

what is more, while performing this on my mashine (2.4.20..) , it
reset after some time ( maybe it was 900 secs ). I think this
this was the reason.
I tried it a few times ( together with opening /dev/watchdog file
with emacs ) and I also caused kernel panic :(

some more info about my mashine. Mayebe it'll be helphul:

[4.] Kernel version (from /proc/version):
Linux version 2.4.20-28.7 (bhcompile@xxxxxxxxxxxxxxxxxxxxx) (gcc
version 2.96 20
000731 (Red Hat Linux 7.3 2.96-126)) #1 Thu Dec 18 11:23:36 EST 2003

[7.] Environment
BASH=/bin/bash
BASH_ENV=/root/.bashrc
BASH_VERSINFO=([0]="2" [1]="05a" [2]="0" [3]="1" [4]="release"
[5]="i686-pc-linux-gnu")
BASH_VERSION='2.05a.0(1)-release'
COLORS=/etc/DIR_COLORS
COLORTERM=
COLUMNS=80
DIRSTACK=()
DISPLAY=:0.0
EUID=0
GROUPS=()
GS_LIB=/root/.kde/share/fonts
GTK_RC_FILES=/etc/gtk/gtkrc:/root/.gtkrc:/root/.gtkrc-kde
HISTFILE=/root/.bash_history
HISTFILESIZE=1000
HISTSIZE=1000
HOME=/root
HOSTNAME=pikpok2
HOSTTYPE=i686
IFS=$' \t\n'
INPUTRC=/etc/inputrc
KDE_MULTIHEAD=false
KONSOLE_DCOP='DCOPRef(konsole-1414,konsole)'
KONSOLE_DCOP_SESSION='DCOPRef(konsole-1414,session-1)'
LANG=en_US.iso885915
LESSOPEN='|/usr/bin/lesspipe.sh %s'
LINES=40
LOGNAME=root
LS_COLORS='no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:ex=01;32:*.cmd=01;32:*.exe=01;32:*.com=01;32:*.btm=01;32:*.bat=01;32:*.sh=01;32:*.csh=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.gz=01;31:*.bz2=01;31:*.bz=01;31:*.tz=01;31:*.rpm=01;31:*.cpio=01;31:*.jpg=01;35:*.gif=01;35:*.bmp=01;35:*.xbm=01;35:*.xpm=01;35:*.png=01;35:*.tif=01;35:'
MACHTYPE=i686-pc-linux-gnu
MAIL=/var/spool/mail/root
MAILCHECK=60
OPTERR=1
OPTIND=1
OSTYPE=linux-gnu
PATH=/usr/local/sbin:/sbin:/usr/sbin:/bin:/usr/bin:/usr/X11R6/bin:/usr/local/bin:/root/bin
PIPESTATUS=([0]="0")
PPID=1414
PROMPT_COMMAND='echo -ne
"\033]0;${USER}@${HOSTNAME%%.*}:${PWD/$HOME/~}\007"'
PS1='[\u@\h \W]\$ '
PS2='> '
PS4='+ '
PWD=/root
QTDIR=/usr/lib/qt3-gcc2.96
SESSION_MANAGER=local/pikpok2:/tmp/.ICE-unix/1362
SHELL=/bin/bash
SHELLOPTS=braceexpand:hashall:histexpand:monitor:history:interactive-comments:emacs
SHLVL=3
SUPPORTED=en_US.iso885915:en_US:en
TERM=xterm
UID=0
USER=root
USERNAME=root
XDM_MANAGED=/var/run/xdmctl/xdmctl-:0,maysd,mayfn,sched
XMODIFIERS=@im=none
_=
i=/etc/profile.d/which-2.sh
langfile=/root/.i18n

[7.1.] redhat version
Red Hat Linux release 7.3 (Valhalla)

[7.2.] Processor information (from /proc/cpuinfo):
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Pentium III (Coppermine)
stepping : 3
cpu MHz : 501.140
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov
pat pse36 mmx fxsr sse
bogomips : 999.42

[7.3.] Module information (from /proc/modules):
nls_iso8859-1 3456 1 (autoclean)
nls_cp437 5088 1 (autoclean)
vfat 11484 1 (autoclean)
fat 35992 0 (autoclean) [vfat]
es1371 29856 1 (autoclean)
gameport 3312 0 (autoclean) [es1371]
ac97_codec 13184 0 (autoclean) [es1371]
soundcore 6212 4 (autoclean) [es1371]
agpgart 43520 0 (unused)
autofs 11588 0 (autoclean) (unused)
3c59x 27464 1
ide-cd 31616 0 (autoclean)
cdrom 33152 0 (autoclean) [ide-cd]
usb-uhci 23620 0 (unused)
usbcore 71680 1 [usb-uhci]
ext3 63328 2
jbd 45740 2 [ext3]

[7.4.] Loaded driver and hardware information (/proc/ioports,
/proc/iomem)
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
02f8-02ff : serial(auto)
0376-0376 : ide1
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0cf8-0cff : PCI conf1
9000-9fff : PCI Bus #01
9000-90ff : ATI Technologies Inc Rage 128 RF/SG AGP
a000-a07f : 3Com Corporation 3cSOHO100-TX Hurricane
a000-a07f : 02:04.0
a400-a43f : Ensoniq 5880 AudioPCI
a400-a43f : es1371
b000-b01f : Intel Corp. 82801AA USB
b000-b01f : usb-uhci
f000-f00f : Intel Corp. 82801AA IDE
f000-f007 : ide0
f008-f00f : ide1

iomem:
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000f0000-000fffff : System ROM
00100000-1fffffff : System RAM
00100000-00226219 : Kernel code
0022621a-0031f71f : Kernel data
d0000000-d3ffffff : Intel Corp. 82815 815 Chipset Host Bridge and
Memory Controller Hub
d4000000-d7ffffff : PCI Bus #01
d4000000-d7ffffff : ATI Technologies Inc Rage 128 RF/SG AGP
d8000000-d9ffffff : PCI Bus #01
d9000000-d9003fff : ATI Technologies Inc Rage 128 RF/SG AGP
db000000-db00007f : 3Com Corporation 3cSOHO100-TX Hurricane
ffb00000-ffffffff : reserved

[7.5.] PCI information ('lspci -vvv' as root)
00:00.0 Host bridge: Intel Corp. 82815 815 Chipset Host Bridge
and Memory Controller Hub (rev 02)
Subsystem: Intel Corp. 82815 815 Chipset Host Bridge and Memory
Controller Hub
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort+ >SERR- <PERR-
Latency: 0
Region 0: Memory at d0000000 (32-bit, prefetchable) [size=64M]
Capabilities: [88] #09 [f104]
Capabilities: [a0] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>

00:01.0 PCI bridge: Intel Corp. 82815 815 Chipset AGP Bridge (rev
02) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
I/O behind bridge: 00009000-00009fff
Memory behind bridge: d8000000-d9ffffff
Prefetchable memory behind bridge: d4000000-d7ffffff
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-

00:1e.0 PCI bridge: Intel Corp. 82801AA PCI Bridge (rev 02)
(prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
I/O behind bridge: 0000a000-0000afff
Memory behind bridge: da000000-dbffffff
Prefetchable memory behind bridge: fff00000-000fffff
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-

00:1f.0 ISA bridge: Intel Corp. 82801AA ISA Bridge (LPC) (rev 02)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0

00:1f.1 IDE interface: Intel Corp. 82801AA IDE (rev 02) (prog-if
80 [Master])
Subsystem: Intel Corp. 82801AA IDE
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Region 4: I/O ports at f000 [size=16]

00:1f.2 USB Controller: Intel Corp. 82801AA USB (rev 02) (prog-if
00 [UHCI])
Subsystem: Intel Corp. 82801AA USB
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin D routed to IRQ 11
Region 4: I/O ports at b000 [size=32]

01:00.0 VGA compatible controller: ATI Technologies Inc Rage 128
RF/SG AGP (prog-if 00 [VGA])
Subsystem: ATI Technologies Inc Magnum/Xpert128/X99/Xpert2000
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping+ SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (2000ns min), cache line size 08
Interrupt: pin A routed to IRQ 5
Region 0: Memory at d4000000 (32-bit, prefetchable) [size=64M]
Region 1: I/O ports at 9000 [size=256]
Region 2: Memory at d9000000 (32-bit, non-prefetchable) [size=16K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [50] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
Command: RQ=0 SBA+ AGP- 64bit- FW- Rate=<none>
Capabilities: [5c] Power Management version 1
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

02:04.0 Ethernet controller: 3Com Corporation 3cSOHO100-TX
Hurricane (rev 30)
Subsystem: 3Com Corporation 3cSOHO100-TX Hurricane
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (2500ns min, 2500ns max), cache line size 08
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at a000 [size=128]
Region 1: Memory at db000000 (32-bit, non-prefetchable) [size=128]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1+,D2+,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

02:05.0 Multimedia audio controller: Ensoniq 5880 AudioPCI (rev 04)
Subsystem: Ensoniq: Unknown device 8001
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort-
<TAbort+ <MAbort+ >SERR- <PERR-
Latency: 32 (3000ns min, 32000ns max)
Interrupt: pin A routed to IRQ 5
Region 0: I/O ports at a400 [size=64]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

[7.6.] SCSI information (from /proc/scsi/scsi)

the system is freshly installed and that problem also occured on
my previous RH9.0 with the newest kernel updated.

greetings
pikpus

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