On Sat, 2007-05-19 at 00:15 -0700, Darren Hart wrote:
> When trying to boot with the maxcpus=1 option, the -rt kernel seems to hang
> somewhere in acpi_processor_init().
>
> I tested mainline 2.6.21 and it does boot with maxcpus=1. 2.6.20-rt8,
> 2.6.21-rt1, 2, and 4 all hang at:
>
> Calling initcall 0xffffffff817a41df: acpi_processor_init+0x0/0xdf()
>
> when booted with initcall_debug and maxcpus=1. I traced this only as far as
> the call to acpi_bus_register_driver. So this seems to have been introduced
> by the -rt patch. I'm not sure if I should try and see when it was
> introduced (as 2.6.16-rt22 does not fail) or if I should head "down the acpi
> rabbit hole"...
Be careful, when sticking your head into this hole !
I try to nail it down.
tglx
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