Re: Linux 2.6.23-rc4: BAD regression

From: Linus Torvalds
Date: Tue Aug 28 2007 - 19:43:19 EST



Len? Should we just revert it?

That commit has been very painful. First it lost all registration of the
query methods, and now this.

Daniel - can we please have a before/after dmesg on your machine,
preferably with ACPI debugging enabled? And for ACPI stuff, it usually
does help to fill in a bugzilla entry, since the ACPI people actually do
track things there...

Linus

On Wed, 29 Aug 2007, Daniel Ritz wrote:
>
> tried that one on my old toshiba tecra 8000 laptop, almost killing it.
> the fan doesn't work any more...type 'make' and see the box dying.
> luckily my CPU doesn't commit suicide...bisected it to that one:
>
> cd8c93a4e04dce8f00d1ef3a476aac8bd65ae40b is first bad commit
> commit cd8c93a4e04dce8f00d1ef3a476aac8bd65ae40b
> Author: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
> Date: Fri Aug 3 17:52:48 2007 -0400
>
> ACPI: EC: If ECDT is not found, look up EC in DSDT.
>
> Some ASUS laptops access EC space from device _INI methods, but do not
> provide ECDT for early EC setup. In order to make them function properly,
> there is a need to find EC is DSDT before any _INI is called.
>
> Similar functionality was turned on by acpi_fake_ecdt=1 command line
> before. Now it is on all the time.
>
> http://bugzilla.kernel.org/show_bug.cgi?id=8598
>
> Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
> Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
>
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