linux-kernel - Re: ata1.00: failed to IDENTIFY (I/O error, err

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Message-ID: <20080223183138.59d18e26@core>
Date:	Sat, 23 Feb 2008 18:31:38 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Vegard Nossum" <vegard.nossum@...il.com>
Cc:	"Jeff Garzik" <jgarzik@...ox.com>, linux-ide@...r.kernel.org,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)

O> I don't see the connection between (no-)smp and ata. Something with
> interrupt routing/IPI, missing irq ack? Booting another !SMP kernel
> works fine. The problem also exists in 2.6.24-rc2.

Almost certainly interrupt routing try smp but with noapic and see if it
fails as well ?
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