Re: Kernel 2.5.55 failed to boot with ACPI support

Alessandro Suardi (ALESSANDRO.SUARDI@oracle.com)
Sun, 12 Jan 2003 14:48:45 -0800 (PST)


Andrew Grover wrote:

> > From: Ole J. Hagen [mailto:olehag_2001@yahoo.no]
> > I just wanted to inform that kernel-2.5.55 failes to boot
> > when ACPI support is
> > compiled in the kernel.
> >
> > I have following configuration; Dell Optiplex GX-240, Pentium
> > 4 (1.5 GHz), ATI RAGE 128.
>
> How exactly does it fail?

My brand new Dell Latitude C640 oopses on boot in 2.5.56 if I
have CPU_FREQ config'd in. ACPI without CPU_FREQ is okay - well,
it screws my framebuffer screen (what 2.4.21-pre3 doesn't) when
the ACPI code does its bootup printk's, but after that the
screen recovers.

Another thing is that /proc/acpi/fan is empty despite my setting
of CONFIG_ACPI_FAN=y.

Oh, and one more - /proc/acpi/battery/BAT0/state claims

charging state: unknown

as well as

present rate: 0 mA
remaining capacity: 0 mAh
present voltage: 0 mV

and the info file, when cat'd, prints a few times

dsobject-0188: *** Warning: Buffer created with zero length in AML

Back on topic, if you're interested I can rebuild my 2.5.56 with
CPU_FREQ and write down the backtrace of the oops.

--alessandro
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