From: Thomas Gleixner <tglx@linutronix.de>
To: Darren Hart <dvhltc@us.ibm.com>
Cc: linux-rt-users@vger.kernel.org, "lkml," <linux-kernel@vger.kernel.org>
Subject: Re: maxcpus=1 fails to boot
Date: Sat, 19 May 2007 11:02:30 +0200 [thread overview]
Message-ID: <1179565350.12981.107.camel@chaos> (raw)
In-Reply-To: <200705190015.53518.dvhltc@us.ibm.com>
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
prev parent reply other threads:[~2007-05-19 8:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-19 7:15 Darren Hart
2007-05-19 9:02 ` Thomas Gleixner [this message]
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