http://bugzilla.kernel.org/show_bug.cgi?id=10377
[EMAIL PROTECTED] changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|[EMAIL PROTECTED]|[EMAIL PROTECTED]
|bugs.osdl.org |m
Summary|Kernel freezes during boot |Kernel usually freezes
|when AC is unplugged |during boot when AC is
| |unplugged - unless
| |CPU_IDLE=n - Asus A6JC
------- Comment #6 from [EMAIL PROTECTED] 2008-04-09 18:40 -------
When running on AC, this system does not export C3.
eg. the dmesg shows
CPU0 (power states: C1[C1] C2[C2])
but when booting on DC, the screenshot shows that C3 is present.
This suggests that processor.max_cstate=2 is a good candidate
for a workaround. Please boot on DC with CONFIG_ACPI_PROCESSOR=y
(not =m) and this cmdline param and see if the hang goes away.
If it does, then CPU_IDLE's C3 code is implicated.
In any event, a hang in the device probe part of kernel boot
usually smells like an interrupt problem...
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