Re: Update: ide problems: 2.6.22-git17 working, 2.6.23-rc1* is not:

[Danny ter Haar <dth@dth.net>]

Quoting Len Brown (lenb@kernel.org):
> Also, please test with CONFIG_X86_ACPI_CPUFREQ=n
> to remove the acpi-cpufreq driver (and thus this patch)
> from your kernel.  If it still fails, then we know
> that this driver (and this patch) are not related
> to the failure.

It wasn't enabled in any of the kernels i ran:

# grep X86_ACPI ../configs/config*
../configs/config-2.6.22-git14-c3-via5000-firewall:# CONFIG_X86_ACPI_CPUFREQ is not set
../configs/config-2.6.22-git17-c3-via5000-firewall:# CONFIG_X86_ACPI_CPUFREQ is not set
../configs/config-2.6.23-rc1-git5:# CONFIG_X86_ACPI_CPUFREQ is not set
../configs/config-2.6.23-rc1-git6:# CONFIG_X86_ACPI_CPUFREQ is not set
../configs/config-2.6.23-rc1-git9:# CONFIG_X86_ACPI_CPUFREQ is not set
../configs/config-2.6.23-rc1-mm1-c3-firewall:# CONFIG_X86_ACPI_CPUFREQ is not set

> Hmmm, okay, the "big hammer" works.  Please see
> if any of these smaller hammers work:
> 
> pnpacpi=off
> acpi=noirq
> notsc

_none_ of these options will work. The machine locks up solid.
And that's what i'm the most surprised about. The last time i withnessed
a solid kernel lockup without any panic/notification is _years_ ago.

I also tried a kernel without "CPU Frequency scaling", so it is not the
scaling up/down in Mhz of the cpu.
I've even just compiled/run a kernel with libata and even that one still 
locks up.

New round of git bisects i guess (this time powercycle instead of reboot
and wait few hours before ginving it "bisect good" )

Will report back.

Danny

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