Hi buddies,
I started this thread and I think I should be proud in saying that I found a solution
myself (with some suggestions from prakesh
shetty. not blowing my trumpet here !!).
The problem seem to existing with the incompatibility with the APM enabled motherboard
and non-ATX SMPS. or in simple terms non-APM
cabinets. When the signal for power down is initiated from halt script i.e:
last line of /etc/rc.d/init.d/halt ----- eval $command -i -d -p
the -p parameter tries to shut down the power but it fails to do so because the SMPS
is not compatible.
The workaround I've adopted is to remove the -p parameter from the halt script and the
system is fine. Once you initiate the shutdown
process all the interfaces, file systems are brought down and "system halted" is
displayed.
Regards,
Seshan.
Erle Pereira wrote:
> ->It throws junk characters on the screen when this power off operation
> > ->has to take place raising an segmentation fault
>
> I get a similar problem.... Whenever I shut off my machine... after the
> "system Halted" prompt (now linux is shut down... right??? )..
> I get "Junk"...
>
> Actually its more like... the registers on the cpu.... I wish I could
> copy/paste the message... but it occurs only after
> power - off... It displays what seems to be like Hexadecimal values in the
> CPU.. resgisters... ..Full screen ...
> "[AX ]: 00EEADF "
> ... OK.. CPU registers.... i can understand.. probably some
> incompatibility.. kernel / HW etc..
>
> but I also get :
> [CALL TRACE].....followed by some more values...
>
> Unable to handle Kernel Paging request....
> .... more values...
>
> I fail to understand this... since this occurs when Linux has booted down.
> Filesytems are unmounted...( eliminates swap space..... etc...... right
> .... or am I totally confused ? )
> ( NO ERRORS WHILE BOOTING UP + RUNNING ).. and no others errors what so
> ever.
>
> Has anyone seen this....? Can anyone shed more light on this. ???
>
> > Did you built your kernel with apm options enabled? The default kernel
> that
> > comes with most distributions does not enable apm option
>
> Been there ..... done that....
>
> Erle.
>
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