From: Darren Hart <dvhltc@us.ibm.com>
To: linux-rt-users@vger.kernel.org
Cc: "lkml, " <linux-kernel@vger.kernel.org>
Subject: maxcpus=1 fails to boot
Date: Sat, 19 May 2007 00:15:52 -0700 [thread overview]
Message-ID: <200705190015.53518.dvhltc@us.ibm.com> (raw)
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"...
Thanks,
--
Darren Hart
IBM Linux Technology Center
Realtime Linux Team
next reply other threads:[~2007-05-19 7:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-19 7:15 Darren Hart [this message]
2007-05-19 9:02 ` Thomas Gleixner
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