Re: GPF, Oops on system halt

Riley Williams (rhw@MemAlpha.CX)
Sun, 25 Jul 1999 16:15:47 +0100 (GMT)


Hi Steve.

>> After installing Redhat 6.0 on two brand-new workstations with
>> identical hardware (single AMD K6-2 450, 6G HDD, 128 MB SDRAM,
>> AOpen 100MHz AGP ATX motherboard), they both exhibited the same
>> problem when shutting down the system to move them. Repeated
>> tests under various BIOS settings have shown the same error.

>> > The system is halted.
>> > Stopping all md devices.
>> > Power down.
>> > general protection fault: f000
>> > CPU: 0
>> > EIP: 0050:[<000089c5>]
>> > EFLAGS: 00010046

> I'm guessing that it's a buggy BIOS APM implementation, as the
> EIP value isn't in the kernel (I'm guessing it's in the BIOS, I
> don't know much about these things); either that or we have
> buggy power down code -- I suspect the former as I recall seeing
> stuff on l-k about this before -- try a search of the archives.

I'm wondering if the above is a processor-specific bug...

I have two systems with IDENTICAL motherboards, hard drives, etc,
which differ ONLY in the processor - one has an Intel P266, the other
an AMD K6-2/350, and the latter is showing this problem where the
former isn't - and the CMOS settings are identical in all other
respects...

Don't ask me what's going on, but I have to suspect something here...

Best wishes from Riley.

+----------------------------------------------------------------------+
| There is something frustrating about the quality and speed of Linux |
| development, ie., the quality is too high and the speed is too high, |
| in other words, I can implement this XXXX feature, but I bet someone |
| else has already done so and is just about to release their patch. |
+----------------------------------------------------------------------+
* ftp://ftp.MemAlpha.cx/pub/rhw/Linux
* http://www.MemAlpha.cx/kernel.versions.html

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