RE: [bug report ] hp's rx2860 (kernel is 2.6.27.19-5 in sles11 ia64) power off failrue when "shutdown -h 0" .

Luck, Tony
2010-06-24T17:11:46Z

> 4, when I am debugging "acpi_enter_sleep_state()" , I found that this is > a tough task because after somewhat, I can't use printk() again .
> so I can't trace them defintely , do you have some better solution ????

Perhaps you could use the early_console code (you'd have to add some code
to switch back to it). Take a look at Documentation/ia64/serial.txt. That
code just pushes bytes out the serial port with very few dependencies, so
it ought to keep working till very late during shutdown sequence.

-Tony