Messages in this thread | | | Subject | Re: Returing to real mode for powerdown (ax59pro) | From | Andi Kleen <> | Date | 08 Nov 1999 15:21:32 +0100 |
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pavel@suse.cz (Pavel Machek) writes:
> Hi! > > Someone has code to dump kernel crashes to floppy. Sorry, I wforgot > where to download that code. > > I want to use it: my ax59pro mainboard will oops on APM poweroff, and > ACPI poweroff is NOP. In dos, apm does poweroff. So I tried to hook > poweroff code into process just before jmp ffff:0000 but it did not > work: seems we do not create sane-enough environment for APM to work.
My gigabyte SMP mainboard has the same problem since somewhere in the middle of 2.3. It gets a fault when it tries to jump to the call gate to the APM segment. I haven't investigated further yet, but I believe it is because some APM LDT entries are incorrectly set up.
With 2.2 it works fine.
-Andi
-- This is like TV. I don't like TV.
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