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SubjectRe: [Bug #20172] 2.6.36-rc7 boot stalls unless nolapic_timer - Lenovo S12
On Fri, 19 Nov 2010 00:53:35 +0100 (CET)
"Rafael J. Wysocki" <rjw@sisk.pl> wrote:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.35 and 2.6.36.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.35 and 2.6.36. Please verify if it still
> should be listed and let the tracking team know (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=20172
> Subject : 2.6.36-rc7 boot stalls unless nolapic_timer
> - Lenovo S12 Submitter : Chris Vine
> <chris@cvine.freeserve.co.uk> Date : 2010-10-10 12:59
> (40 days old) Message-ID :
> <<20101010135912.76eb61b7@boulder.homenet>> References :
> http://marc.info/?l=linux-kernel&m=128671620721712&w=2

This bug is still present in 2.6.37-rc2, but (as the original reporter)
I now doubt it should be classified as a regression. It looked as if
it was a regression because in the 2.6.35 kernel (the first kernel to
include intel idle), intel idle was available as a kernel module and
that module never in fact loaded on my hardware and so never caused a
hang. In 2.6.36 onwards, intel idle is only available directly compiled
into the kernel and that is when the hang became apparent: subsequent
testing shows that the hang also occurs with 2.6.35 if intel idle is
compiled in rather than as a module.

So it is a bug, which is still present, but not necessarily a
regression.

Chris




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