Subject: System fails to get interrupts with ACPI enabled
To: None <firstname.lastname@example.org>
From: Jason Thorpe <email@example.com>
Date: 04/11/2003 18:05:05
I'm in the process of making something sane happen when the user
pressed the power button on their ACPI-savvy PC, but I'm having a bit
of trouble with ACPI working at all.
I have tried it on two different E7500-based systems, with the
following configuration combinations:
* using legacy PIC mode
* using ioapic + MPACPI (but no MULTIPROCESSOR)
* using ioapic + MPACPI (with MULTIPROCESSOR)
Each one was done with ACPI_PCI_FIXUP disabled (since it is know to not
work well with PCI bridges, of which there are many on any E7500-based
The symptom is that interrupts seem to not work. Strangely enough,
some do... i.e. if I bang at the serial console of one of these systems
long enough, I eventually get a silo overflow error from com0. On the
other system, I guess clock interrupts are working, because I get the
IDE "lost interrupt" messages.
Thoughts? If you're an ACPI expert, and can help me with this, please
feel free to contact me off-list (although please note that I will be
away from the machines from Saturday - Wednesday).
-- Jason R. Thorpe <firstname.lastname@example.org>