acpi_idle_enter_bm & mwait_idle

[Oleksiy Protas <elfy.ua@gmail.com>]

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Hello,

I am sorry for bugging you guys here, but I've got a question and I think it 
best fits here. I have an Acer laptop, namely TravelMate 5320 with a Linux OS 
(uname -a gives: Linux seagull 2.6.30-gentoo-r4 #4 Sat Aug 15 01:29:44 EEST 
2009 i686 Intel(R) Celeron(R) CPU 550 @ 2.00GHz GenuineIntel GNU/Linux). What 
I'm observing are regular streak of system unreponsiveness. Performance 
monitors show an activity of  high-nice processes during these periods. 
OProfile gives ~24% time eaten by apci_idle_enter_bm() with ACPI enabled and 
35% time by mwait_idle() with acpi=off, regardless of streak presence or just 
smooth operating time. My question is how can I debug more indepth to see 
what's happening and what the named functions do so I can or can't blame them 
for unusable system. Thanks in advance.
-- 
Oleksiy Protas 
National University «Kyiv-Mohyla Academy»
Institute of Molecular Biology and Genetics, Ukraine
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