Tyan Tiger i7501(S2723) and Tyan Thunder i7500 problems (no sensors found! and bad temperatures and other measurements)

jon jcmcknny at uiuc.edu
Sat Feb 22 09:54:29 CET 2003


Hi!

I have a cluster of computers used for computational physics.  I'd like
to monitor the CPU temperature to know if the AC room is functioning so
our computers don't die.  Seemed simple enough, but I'm having lots of
problems.

I'm a pretty experienced linux user, and have used lm_sensors in the
past with no problem on other computers.

See config.TXT for my specs/OS/etc.

So, I go through the install:
1) untar sens and i2c tarballs
2) get into i2c dir and make ; make install ; depmod -a
3) get into sens dir and make ; make install ; depmod -a ;
prog/mkdev/mkdev.sh
4) Then edit ld.so.conf to include /usr/local/lib
5) Run prog/detect/sensors-detect.
	a) On all machines it crashes on i2c-velleman (modprobe eats
99.9% cpu)
	(see sens_detect.TXT)

6) I  edit the modules.conf like detect says, edit rc.local as says, and
run the modprobes and sensors -s.  If I use the included sensors
program, no sensors are found!  I happen to have an older sensors
program lying around in /usr/bin from Redhat8.0 install, and it worked!
Well, mostly (see sensors.TXT).  It says it's version 2.6.3.

If I use the original SMP kernel from RH8 then nothing different occurs
with the sensors output.  So I assume at least perhaps I can get temp1
working, which is fine.  But why doesn't he NEW sensors program work?
It doesn't work with the old modules either.
 
7) I ended up doing echo 2 > sensor1 in the proc list and got a more
reasonable measure of Celcius(30C-31C), and it does seem to vary, so
maybe it's working.  That one temp sensor at least is reasonably similar
to the BIOS measurement.

8) So what's the problem?  The new lm_sensors fails to work, and it
appears to be a sensors program problem

I checked dmesg & /var/log/messages and all modules load without error.
Lsmod shows (see lsmod-2.4.20.TXT).  See lsmod-2.4.18-14.TXT for the
default RH8 SMP kernel lsmod.

DMESG:
dmesg shows (see dmesg-2.4.20.TXT).  Redhat8 kernel it says more stuff
(see dmesg for it).  From dmesg, seems alot more registering is
occurring with 2.6.3.

I2cdetect/i2cdump: (See files)

I think I've included everything you ask for.  I hope it can be useful.
Until then I suppose I'll use the old sensors program! :(  What a lucky
temporary hack!  I found it by accidentally logging in as a user, then
su - as root, and no /usr/local/bin in path, so it used /usr/bin.
Anyways, help!!!!!!!!!!!

Thanks!
Jon

----------
 
Jonathan McKinney
University of Illinois
Center for Theoretical Astrophysics
email: jcmcknny at uiuc.edu
ICQ: 13665647
MSN-IM: pseudotensor at hotmail.com
AOL-IM: PseudoTensor

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