Can view output in proc files but not with sensors. (Examined/Solved - lm_sensors-2.5.4 Linux 2.4.0-test12)

[contact]

I have an i840 motherboard from Tyan (Thunder 2400). I have now problem loading

the drivers with:

# I2C adapter drivers

modprobe i2c-i801

modprobe i2c-voodoo3

# I2C chip drivers

modprobe w83781d

modprobe eeprom

modprobe ddcmon

I then can read all output from the sensors from /proc/sys/dev/sensors. The

problem comes when any applicvation including sensors wants to read the data.

Some segfault but sensors just doesn't display any output. Below is my dmesg

output and my /proc/sys/dev/sensors/chips output.

Thanks,

Kris Kersey

augustus@…

dmesg:

i2c-core.o: i2c core module

i801.o version 2.5.4 (20001012)

i2c-core.o: adapter SMBus I801 adapter at efa0 registered as adapter 0.

i2c-i801.o: I801 bus detected and initialized

i2c-algo-bit.o: i2c bit algorithm module

i2c-voodoo3.o version 2.5.4 (20001012)

i2c-voodoo3: Using Banshee/Voodoo?3 at 0xd0857000

i2c-voodoo3: 1 Banshee/Voodoo?3 found.

i2c-core.o: adapter I2C Voodoo3/Banshee adapter registered as adapter 1.

i2c-voodoo3.o: I2C bus initialized

i2c-core.o: adapter DDC Voodoo3/Banshee adapter registered as adapter 2.

i2c-voodoo3.o: DDC bus initialized

sensors.o version 2.5.4 (20001012)

w83781d.o version 2.5.4 (20001012)

i2c-core.o: driver W83781D sensor driver registered.

i2c-core.o: client [W83782D chip] registered to adapter [SMBus I801 adapter at

efa0](pos. 0).

i2c-core.o: client [W83782D subclient] registered to adapter [SMBus I801 adapter

at efa0](pos. 1).

i2c-core.o: client [W83782D subclient] registered to adapter [SMBus I801 adapter

at efa0](pos. 2).

eeprom.o version 2.5.4 (20001012)

i2c-core.o: driver EEPROM READER registered.

i2c-core.o: client [EEPROM chip] registered to adapter [SMBus I801 adapter at

efa0](pos. 3).

i2c-core.o: client [EEPROM chip] registered to adapter [SMBus I801 adapter at

efa0](pos. 4).

i2c-core.o: client [EEPROM chip] registered to adapter [I2C Voodoo3/Banshee

adapter](pos. 0).

ddcmon.o version 2.5.4 (20001012)

i2c-core.o: driver DDCMON READER registered.

i2c-core.o: client [DDC Monitor] registered to adapter [DDC Voodoo3/Banshee

adapter](pos. 0).

cat /proc/sys/dev/sensors/chips:

256 w83782d-i2c-0-2d

257 eeprom-i2c-0-50

258 eeprom-i2c-0-54

259 eeprom-i2c-1-50

260 ddcmon-i2c-2-50

--- Please clarify what is happening.

You can cat the entries in /proc, for example

/proc/sys/dev/sensors/w83782d-i2c-0-2d/in0,

but 'sensors' segfaults?

Or do you mean that some modules are oopsing?

Please send us the oops or segfault information.

Everything you sent in the ticket looks fine.

Followup by sending mail to sensors@… and

referencing your ticket number.

MDS 12/7/00

---

Closed as very old MDS 1/24/02.

Followups from my records:

Maybe that's a better theory.

I rmmod'ed the chip modules but left the bus modules and the 'sensors'

module, and did 'strace sensors', and it looked just like the one you

sent, including the two ioctls on fd 3. If you look more closely

at the strace output, you'll see that the reads of fd 3 inbetween the

two ioctls were all successful. So I'm convinced it has nothing to

do with sensors.conf or bison/flex or ioctls.

I am going to put a warning message in 'sensors' for when it doesn't

find any sensors at all.

So we'll keep working on it.

We haven't gotten anywhere on the SMP problem.

mds

Kristopher Allan Kersey wrote:

Mark,

I realized that on the support site, that there were several other

problems like mine. I forgot to mention that mine is SMP also. This may

be the common bond: an error with SMP on late 2.4.0-test kernels.

Kristopher Kersey

LinuxHardware?.org Site Manager

augustus@…

On Fri, 8 Dec 2000, Mark D. Studebaker wrote:

Seems to be dying in the parsing of sensors.conf.

Bison/flex problem?

What's your version numbers?

Did you see any bison/flex warnings when the package was built?

Kristopher Allan Kersey wrote:

All,

Yes, /etc/sensors.conf exists. Yes I have a vanilla kernel. Yes I have

sysctl in the kernel. I don't have ptrace installed but if it will help,

I attached a strace readout. Looks like some bad ioctls.

Thanks,

Kristopher Kersey

LinuxHardware?.org Site Manager

augustus@…

On Fri, 8 Dec 2000, Frodo Looijaard wrote:

phil@… wrote:

Is your /etc/sensors.conf file present? Frodo, any other ideas?

Can you send a ptrace of the sensors call? Do you have a vanilla kernel,

or one with other patches installed? Do you have SYSCTL compiled into

your kernel?

Good luck,

Frodo

--

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 http://huizen.dds.nl/~frodol

Defenestration n. (formal or joc.):

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followed

by the installation of Linux or some other Unix-like operating system.

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