http://bugzilla.kernel.org/show_bug.cgi?id=11993
------- Comment #29 from yakui.z...@intel.com 2009-02-04 20:04 -------
Hi, Pascal
Sorry for the late response.
Will you please try the boot option of "nolapic_timer" on the latest
kernel(2.6.29-rc2/rc3) and see whether the box can be booted?
From the problem description it seems that the box still can't be booted
under the following case:
a. processor.max_cstate=1. In such case only C1 is used when CPU enters
C1,the lapic timer will be used. It seems that the system can't exit the
C1-state because of lapic timer interrupt. (In fact the difference between the
boot option of "idle=poll" and "processor.max_cstate=1" is that polling is used
when CPU is idle).
From the test in comment #27 it seems that the box can be booted if adding
the boot option of "nohz=off". In fact in such case the system will work in
tick mode. After the processor module is loaded, the HPET/pit timer will be
used instead of local APIC timer, which means that the local APIC timer won't
be used again.
Maybe this issue is related with local APIC timer.(There is no option of
"nolapic_timer" is added for the 64-bit platform on the kernel of 2.6.27-7).
Thanks.
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