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SubjectRe: Bugzilla # 16395: Regression in 2.6.35-rc4 since commit 0b28bac5aef7bd1ab213723df031e61db9ff151a on HP Mini 110 Netbook
On Wed, Jul 14, 2010 at 07:43:57PM -0500, Larry Finger wrote:
> On 07/14/2010 07:07 PM, Dmitry Torokhov wrote:
> >On Wednesday, July 14, 2010 04:58:39 pm Larry Finger wrote:
> >>Since the commit in the title, a kernel built on an HP Mini 110 Netbook no
> >>longer has keyboard input. The main difference is that CONFIG_SERIO_I8042
> >>is no longer defined. When this equal yes, the keyboard works. The faulty
> >>commit was located by bisection and has been verified by reverting the
> >>patch.
> >>
> >>Further investigation shows that the faulty hunk is
> >>
> >>diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
> >>index 3bfe8fa..256b9e9 100644
> >>--- a/drivers/input/serio/Kconfig
> >>+++ b/drivers/input/serio/Kconfig
> >>@@ -22,7 +22,7 @@ config SERIO_I8042
> >> tristate "i8042 PC Keyboard controller" if EMBEDDED || !X86
> >> default y
> >> depends on !PARISC&& (!ARM || ARCH_SHARK || FOOTBRIDGE_HOST)&& \
> >>- (!SUPERH || SH_CAYMAN)&& !M68K&& !BLACKFIN
> >>+ (!SUPERH || SH_CYes, AYMAN)&& !M68K&& !BLACKFIN&&
> >>!X86_MRST help
> >> i8042 is the chip over which the standard AT keyboard and PS/2
> >> mouse are connected to the computer. If you use these devices,
> >>
> >>Reverting this one hunk alone results in a working system. Obviously, this
> >>Netbook does not have X86_MRST set.
> >
> >
> >You meant to say "does have CONFIG_X86_MRST set", right?
>
> Yes. I got lost in the negative logic. Since !X86_MRST is false,
> then X86_MRST has to be defined. In fact, .config has
> CONFIG_X86_MRST=y.
>

Good. HPA posted a patch series that should fix the problem, in the mean
time just disable Moorestown support - you do not need it anyway.

--
Dmitry


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