linux-kernel - Re: [APIC] Kernel panic, rsync corruption, intel q8200, 2.6.28-rc8

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Message-id: <alpine.LFD.2.00.0902032332190.5607@localhost.localdomain>
Date:	Tue, 03 Feb 2009 23:35:33 -0500 (EST)
From:	Len Brown <lenb@...nel.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Sam Ruby <rubys@...ertwingly.net>,
	LKML <linux-kernel@...r.kernel.org>, linux-acpi@...r.kernel.org,
	x86@...nel.org, "Maciej W. Rozycki" <macro@...ux-mips.org>
Subject: Re: [APIC] Kernel panic, rsync corruption, intel q8200, 2.6.28-rc8


> > > >> [    0.296001] ..MP-BIOS bug: 8254 timer not connected to IO-APIC
> > > >> [    0.296001] Kernel panic - not syncing: IO-APIC + timer doesn't work! 

just for the record, check_timer() is x86 IO-APIC code, not ACPI code.
So if the machine actually has MPS support, you'll probably get the 
same result with "acpi=off".  (of course if it doesn't have MPS,
then acpi=off would boot in uniprocessor legacy PIC mode)

cheers,
-Len

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