PII SMP system hangs during boot with ACPI enabled
jdp at polstra.com
Mon Nov 24 14:14:01 PST 2003
On 24-Nov-2003 Nate Lawson wrote:
> On Mon, 24 Nov 2003, John Polstra wrote:
>> On 24-Nov-2003 Nate Lawson wrote:
>> > Please also send the output of acpidump -t -d > jdp-P2.asl
>> When I try to run that command, I get:
>> acpidump: sysctl machdep.acpi_root does not point to RSDP
>> The sysctl command shows that machdep.acpi_root is 0.
>> Remember, though, in order to boot it I had to disable ACPI in
> Yes, I see. You could use an older kernel like the 5.1R cd.
I'll try that, and send you the dump if I can get one.
> Both of these show that acpi_task_thread is calling a task and then
> AcpiOsSignalSemaphore is hanging. I'm wondering if your system can't
> handle the acpi interrupt being moved to irq 20. Please try this
> (untested) patch that should disable moving the SCI to irq 20. jhb can
> probably address this better than I.
I tried your patch, but it didn't change the behavior any.
More information about the freebsd-current