On Tue, 9 Oct 2007, Kevin wrote:
>
> I don't own a digital camera but I did jot the info down by hand.
Heh, yeah, that's what I used to do too (and still do if a camera isn't
handy).
> Call Trace:
> [<c010e852>] apm_bios_call_simple+0x92/0x110
> [<c0285a0>] acpi_hw_clear_gpe_block+00/0x32
> [<c010e8ec>] set_system_power_state+0x1c/0x30
> [<c010f93a>] apm_system_power_off+0x6a/0x80
> [<c010f8d0>] apm_system_power_off+0x0/0x80
> [<c010e434>] native_machine_power_off+0x14/0x20
> [<c010e406>] machine_power_off+0x6/0x10
> [<c0127cb9>] sys_reboot+0x99/0x140
>...
> Code: Bad EIP Value
> EIP: [<00007825>] 0x7825 SS:ESP 0068:e7305de8
> /etc/rc.d/rc.0: Line 261: 2796 Segmentation Fault /sbin/poweroff
Ahh. APM. That does explain the strange EIP register values: we're jumping
into the BIOS, and the BIOS is doing something unexpected.
However, that doesn't really explain the oops, because I don't think
anything changed in APM from 2.6.22->23, and in particular, I don't think
it has anything to do with the thing that caused problems for PPC.
We did have some APM *detection* changes, and maybe APM wasn't even
detected for you before, or it was detected differently. That would be due
to the bootup changes, I'm Cc'ing Peter Anvin (and the kernel mailing
list, in case somebody else see a pattern to this).
Can you please
- try with APM turned off (APM really shouldn't be useful on any machines
built in the last ten years or so), just to verify that things work
without APM.
- send the bootup "dmesg" output and a machine description (and please
keep people Cc'd - sending things just to me is a sure-fire way to get
things dropped eventually, if only because I'm a lazy clutz).
- what was the last kernel that worked (and if you can bisect the
problem, that would likely help enormously)
Thanks,
Linus
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