Hi Luming,

I think you need to set up serial console to monitor the kernel message
of rebooting process to sort out valuable clues.

Here are the last lines from my kernel log:

kernel: unloading PCMCIA Card Services
kernel: Kernel logging (proc) stopped.
kernel: Kernel log daemon terminating.

The last message on the console is 'rebooting system ...'. That's all
and then the lights went off. As far as I can see the shutdown process
comes to a complete end. On booting the next time there's no fsck'ing
because of unproperly unmounting.

I presume that if acpi=off doesn't work, then acpi is exempt from
any accusation. :)

Sorry, but I do not agree. Suspending and power management is one side
of ACPI, but ACPI is also used to setup und configure the system. As far
as I noted, the kernel still uses some ACPI information to setup up the
system, even if you have 'acpi=off' on your command line. In the case of
'acpi=off' you definitely have no suspend possibilities.

As Bernd Schubert suggested, I'll give kernel 2.6.x a try. In regards to
PCI kernel 2.2.x had a very 'simple' approach (compared with 2.4.x).
2.4.x makes a better job. But with my Dell I7500 it broke something
(okay, I admit the I7500 has a broken BIOS, too). My only hope is that
2.6.x corrects what 2.4.x didn't achieve.

Dieter

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