From: Andi Kleen <andi@firstfloor.org>
To: Pavel Machek <pavel@ucw.cz>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>,
linux-pci@atrey.karlin.mff.cuni.cz,
Jean Delvare <jdelvare@suse.de>,
LKML <linux-kernel@vger.kernel.org>, Tejun Heo <htejun@gmail.com>,
Tom Long Nguyen <tom.l.nguyen@intel.com>,
Randy Dunlap <rdunlap@xenotime.net>,
Jeff Garzik <jgarzik@pobox.com>
Subject: Re: PCI MSI breaks when booting with nosmp
Date: Mon, 21 Apr 2008 21:44:34 +0200 [thread overview]
Message-ID: <480CEEA2.1040106@firstfloor.org> (raw)
In-Reply-To: <20080421194336.GC32278@elf.ucw.cz>
Pavel Machek wrote:
> On Mon 2008-04-21 20:45:05, Andi Kleen wrote:
>> Jesse Barnes <jbarnes@virtuousgeek.org> writes:
>>> Ok, I see this too on my desktop machine. It looks like we're not getting
>>> interrupts setup correctly in the nosmp case. Still digging through to see
>>> why though...
>> NoSMP disables the io-apic and a lot of modern systems don't work
>> without APIC.
>
> Are you sure? I still boot DOS on very recent boxes, and they seem to
> work. How can PC-compatible machine require an APIC?
The machine doesn't, but the drivers do. DOS likely doesn't use all
hardware.
-Andi
next prev parent reply other threads:[~2008-04-21 19:44 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-17 19:40 PCI MSI breaks when booting with nosmp Jean Delvare
2008-04-17 20:08 ` Jesse Barnes
2008-04-17 20:25 ` Jean Delvare
2008-04-21 17:43 ` Jesse Barnes
2008-04-21 18:45 ` Andi Kleen
2008-04-21 19:06 ` Jesse Barnes
2008-04-21 19:35 ` Jesse Barnes
2008-04-21 19:41 ` Andi Kleen
2008-04-21 19:43 ` Pavel Machek
2008-04-21 19:44 ` Andi Kleen [this message]
2008-04-22 21:25 ` Pavel Machek
2008-04-22 23:07 ` Jesse Barnes
2008-04-21 20:20 ` Jean Delvare
2008-04-21 20:40 ` Jesse Barnes
2008-04-21 20:46 ` Andi Kleen
2008-04-21 20:48 ` Jean Delvare
2008-04-21 21:09 ` Andi Kleen
2008-04-21 21:14 ` Jesse Barnes
2008-04-22 13:27 ` Jean Delvare
2008-04-22 15:50 ` Jesse Barnes
2008-04-23 14:38 ` Jean Delvare
2008-04-23 15:12 ` Jesse Barnes
2008-04-23 18:13 ` Maciej W. Rozycki
2008-04-23 18:23 ` Jesse Barnes
2008-04-23 18:32 ` Jesse Barnes
2008-04-23 18:32 ` Jean Delvare
2008-04-23 18:38 ` Maciej W. Rozycki
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