Hi Rudolf,
Am Mittwoch, 3. Mai 2006 23:37 schrieben Sie:
> Hello Dieter
> Now my questions:
>
> Does it start to work after reboot?
No. But this is a mobo issue I see with all 2460 Tyan Tiger independent of
this problem.
> After cold boot?
No! The reset button does *not* cure the problem. This is different from
"normal" behaviour"
> After power unplug?
Yes. Nothing else that helps.
> Have you ACPI in kernel?
Yes. Any info required on that?
> Have you compiled/loaded/in kernel the thermal module?
I load:
i2c-amd756
i2c-isa
w83781d
eeprom
(in this sequence) during boot. This is done via /etc/sysconfig/lm_sensors. I
do not know about i2c-dev. However, lsmod | grep i2c gives the following
output:
i2c_sensor 7936 2 eeprom,w83781d
i2c_isa 6400 0
i2c_algo_bit 13448 0
i2c_amd756 11908 0
i2c_core 27136 7
eeprom,w83781d,i2c_sensor,i2c_isa,i2c_algo_bit,ivtv_tveeprom,i2c_amd756
I do not see i2c-dev being loaded. However, it exists compiled as a module,
therefore I am convinced that it is not residing in the kernel.
> If it will happen again in future you may try following:
It will :-(
This is my homework, I'll be back with you as soon as I have results to tell.
>
> 1) obtain the smb base addr
> AMD756_smba = xxx
> Should be in your debug log, you may use value from older log because it
> does not change. Alternatively you may also look into cat /proc/ioports
>
> then you may use the isadump tool
> 2)
> isadump -f xxx
>
> (please replace the xxx with the base address from the log) This will allow
> us to check the status of the SMBDATA and SMBCLK lines and see if they are
> stuck low. Eventually we can try to excersise the DATA and CLK lines to see
> if they are working properly.
>
> You may also try to provoke the failure by running this:
>
> modprobe i2c-dev
> modprobe i2c-amd756
> while true; do i2cdump -y 0 0x2d b > /dev/null; done
Thanks for helping that far. I will unload the debug kernel now as it spits
about 400 MByte of i2c-debug logs into /var/log/messages.
Takte care,
Dieter Jurzitza
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