Re: 2.6.29-rc1 does not boot

Dieter Ries
2009-01-11T18:50:27Z

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Hi,

Ingo Molnar schrieb:
>>> * Dieter Ries <clip2@gmx.de> wrote:
>>>
>>>> Hi,
>>>>
>>>> I just pulled 2.6.29-rc1, ran oldconfig with defaults and built it.
>>>> When I try to boot it, that kind of works until init should start. Then
>>>> nothing happens. I tried with init=/bin/bash, which sometimes works, and
>>>> sometimes gets me a bash without the prompt flashing.
>>>>
>>>> I captured the output with netconsole, but I cannot see a problem there.
>>>> It is attached.
>>>>
>>>> My config is also attached.
>>>>
>>>> The machine:
>>>>
>>>> Lenovo Thinkpad T60
>>>> Core2Duo 2GHz
>>>>
>>>> Gentoo 64bit
>>>>
>>>>
>>>> What else should I provide for debugging that?
>
> Unless you can see some particular badness in the kernel messages
> (something that changed to the last working version) that narrows it down
> to some subsystem, i suspect this would have to be bisected ...

Bisected it:

####################################################################
7503bfbae89eba07b46441a5d1594647f6b8ab7d is first bad commit
commit 7503bfbae89eba07b46441a5d1594647f6b8ab7d
Author: Mike Travis <travis@sgi.com>
Date: Sun Jan 4 05:18:09 2009 -0800

cpumask: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_write

Impact: use new cpumask API to reduce stack usage

Replace the saving of current->cpus_allowed and set_cpus_allowed_ptr()
with a work_on_cpu function for drv_read() and drv_write().

Basically converts do_drv_{read,write} into "work_on_cpu" functions that
are now called by drv_read and drv_write.

Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
####################################################################

I reverted that patch, which makes my machine boot again. So I guess
theres something wrong here. Please tell me which information you need
to fix the problem, I will help as I can.

>
> Ingo
>

cu
Dieter

--
3rd Law of Computing:
Anything that can go wr
fortune: Segmentation violation -- Core dumped

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