System crash after starting "sensors" (Examined/Solved - lm_sensors 2.4.3 Linux 2.2.10)

[contact]

This is the output of the detecting/bus_grab: bus "i2c-0" "SMBus vt82c596 adapter at 5f00" "Non-I2C SMBus adapter" bus "i2c-1" "ELV Parallel port adaptor" "Bit-shift algorithm"

WARNING! This program can confuse your I2C bus, cause data loss and worse! I will probe file /dev/i2c-0 You have five seconds to reconsider and press CTRL-C!

0 1 2 3 4 5 6 7 8 9 a b c d e f

00: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX 10: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX 20: XX XX XX XX XX XX XX XX XX XX XX XX XX 2d XX XX 30: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX 40: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX 50: 50 XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX 60: XX XX XX XX XX XX XX XX XX 69 XX XX XX XX XX XX 70: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX Driver 'lm80' (may not be inserted):

Misdetects:

• Bus 'SMBus vt82c596 adapter at 5f00' (Non-I2C SMBus adapter) Busdriver 'i2c-viapro', I2C address 0x2d Chip 'National Semiconductor LM80' (confidence: 3)

Driver 'gl520sm' (should be inserted):

Detects correctly:

• Bus 'SMBus vt82c596 adapter at 5f00' (Non-I2C SMBus adapter) Busdriver 'i2c-viapro', I2C address 0x2d Chip 'Genesys Logic GL520SM' (confidence: 5)

Driver 'eeprom' (should be inserted):

Detects correctly:

• Bus 'SMBus vt82c596 adapter at 5f00' (Non-I2C SMBus adapter) Busdriver 'i2c-viapro', I2C address 0x50 Chip 'Serial EEPROM (PC-100 DIMM)' (confidence: 1)

My problem is, that my system crashes when I just start "sensors". Even when I try to load the modules for the chipset, the processor fan, and the case-fan stop immediately. Maybe a configuration error ? --- The output of sensors-detect looks reasonable and it looks like i2c-viapro.o handles it job correctly. Loading it alone really should not have effect on the fans. Please verify this with freshly _cold_ booted system:

modprobe i2c-viapro

and send the outputs of either:

lspci -d 1106:3050 -xx lspci -d 1106:3057 -xx

The SMBus driver might access some bad register in the ACPI space which can cause fans powering off. GL520SM is not capable of variating fan speeds. Once i2c-viapro is loaded:

modprobe i2c-dev prog/dump/i2cdump 0 0x2d w

This will help me to look it really is GL520SM. Also I can see what values BIOS has written there. Both drivers are in experimental state due the lack of HW to test with. reply to: lm78@… -- Kysti Obviously the problem got solved somehow. Also we have had some success reports with the i2c-viapro driver that Bad Things like system crash don't happen. -- Kysti