kern/59732: acpi causes boot to hang

[John Baldwin]

On 25-Dec-2003 Danny Braniss wrote:
>> 
>> On 24-Dec-2003 Danny Braniss wrote:
>> > just a follow up, with latest current, some more info appears:
>> > 
>> > ...
>> > lo0: bpf attached
>> > bus_explore done
>> > sbp_post_explore (sbp_cold=2)
>> > Current DB 0
>> > ch = 0
>> >  Current OP   KEY INT BR   len     Addr   Depend Stat: Cnt
>> > 3c4f8000 OUTL ST2 ALL ALL    12 00000000 3c4f8080 8411:022d RUN,ACTIVE, ack 
>> > complete(11)
>> > 0x000000e0 0x00450000 0xffbaffff 0x00000000
>> > ata0: spurious interrupt - status=0x50 error=0x00
>> > 
>> > the full version is in:
>> >       ftp://ftp.cs.huji.ac.il/users/danny/freebsd/acpi-1.log
>> > 
>> > hope this helps ...
>> 
>> Can you please turn off ACPI_DEBUG, turn on DDB, and see if you
>> can break into ddb using Ctrl-Alt-Esc when it hangs.  If so,
>> can you do 'show intrcnt' to get the list of interrupt counts?
> 
> whats the equiv of Ctrl-Alt_Esc on a serial console?

Add 'options BREAK_TO_DEBUGGER' to your kernel and then send it
a serial break.

-- 

John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/