Sysctl and out of memory killer

[fvdw]

what are the values of pwm1_enable and pwm1_mode

indeed it doesn't seem to rotate
especially fan1_fault value being 1 indicates a problem , on my 5big2 it indicates 0 even if the fan is not running

Maybe it is stuck because of dirt ??, a look inside and try if it can move by hand ?

[samrise]

Code: Select all

root@nas:/ # cat  /sys/bus/i2c/devices/0-003e/pwm1_enable
1
root@nas:/ # cat  /sys/bus/i2c/devices/0-003e/pwm1_mode
1


I'm going to open it and check.

[fvdw]

If you take out the disks you should be able to see it.

[samrise]

Indeed.

Fan is working (thank god), but always at same speed and i cant control it. Echo into that file does not work.

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root@nas:/ # /bin/echo 200 > /sys/bus/i2c/devices/0-003e/pwm1
root@nas:/ # cat /sys/bus/i2c/devices/0-003e/pwm1
255


[fvdw]

Values above 100 make little or no difference see earlier post. Try a value of 10, now you should see a lower speed.

What did you do to make the fan work?

[samrise]

Maybe i didnt explain myself:

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root@nas:/ # /bin/echo 10 > /sys/bus/i2c/devices/0-003e/pwm1
root@nas:/ # cat /sys/bus/i2c/devices/0-003e/pwm1
255
root@nas:/ # /bin/echo 155 > /sys/bus/i2c/devices/0-003e/pwm1
root@nas:/ # cat /sys/bus/i2c/devices/0-003e/pwm1
255


That file is not acepting input, it always contains 255.

Regarding fan i think it was stuck.

[fvdw]

did you first set the mode correct ?

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/bin/echo 1 > /sys/bus/i2c/devices/0-003e/pwm1_enable
/bin/echo 1 > /sys/bus/i2c/devices/0-003e/pwm1_mode

[samrise]

Yes.

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root@nas:/ # cat /sys/bus/i2c/devices/0-003e/pwm1_mode
1
root@nas:/ # cat /sys/bus/i2c/devices/0-003e/pwm1_enable
1


Driver still reads 0 rpm:

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root@nas:/ # cat /sys/bus/i2c/devices/0-003e/fan1_input
0


[fvdw]

fan1_input has now meaning in this mode 1

below some settings on my 5big2 as example

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/sys/bus/i2c/devices/0-003e$ cat pwm1
0
/sys/bus/i2c/devices/0-003e$ cat pwm1_enable
1
/sys/bus/i2c/devices/0-003e$ cat pwm1_mode
1
/sys/bus/i2c/devices/0-003e$ cat fan1_pulses
2
/sys/bus/i2c/devices/0-003e$ cat fan1_div
8
/sys/bus/i2c/devices/0-003e$ cat uevent
DRIVER=g762
MODALIAS=i2c:g762
/sys/bus/i2c/devices/0-003e$ echo 10 > pwm1
/sys/bus/i2c/devices/0-003e$ cat pwm1
10

[samrise]

Code: Select all

root@nas:/ # cd /sys/bus/i2c/devices/0-003e/
root@nas:/sys/bus/i2c/devices/0-003e # cat pwm1
255
root@nas:/sys/bus/i2c/devices/0-003e # cat pwm1_enable
1
root@nas:/sys/bus/i2c/devices/0-003e # cat pwm1_mode
1
root@nas:/sys/bus/i2c/devices/0-003e # cat fan1_pulses
4
root@nas:/sys/bus/i2c/devices/0-003e # cat fan1_div
8
root@nas:/sys/bus/i2c/devices/0-003e # cat uevent
DRIVER=g762
MODALIAS=i2c:g762
root@nas:/sys/bus/i2c/devices/0-003e # echo 10 > pwm1
root@nas:/sys/bus/i2c/devices/0-003e # cat pwm1
255
root@nas:/sys/bus/i2c/devices/0-003e #