https://bugzilla.kernel.org/show_bug.cgi?id=16145


Venkatesh Pallipadi <[email protected]> changed:

           What    |Removed                     |Added
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--- Comment #7 from Venkatesh Pallipadi <[email protected]>  2010-06-07 18:24:28 
---

OK. I expect system to fail even with the patch reverted and
PROCESSOR_AGGREGATOR not configured. Might be a good to check that case.

Appears that the problem is not directly related to commit 0dc698b9. The system
will not boot with or without this change when ACPI_PROCESSOR_AGGREGATOR is
disabled.

There seems to be some TSC related weirdness on this platform that is causing
this problem. Somehow the mark_tsc_unstable() in acpi_pad.c is coming to the
rescue of this system and letting it boot. But, once that call is taken out,
either through the commit 0dc698b9 or removing PROCESSOR_AGGREGATOR in .config)
system will fail to boot. What is surprising to me is that there is another
mark_tsc_unstable() in acpi idle driver that doesn't seem to be helping. Let me
look at this a bit more. Copying Len as well.

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