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

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Message-ID: <19f34abd0802231046m2e8d3bcav224ae91f8e975579@mail.gmail.com>
Date:	Sat, 23 Feb 2008 19:46:35 +0100
From:	"Vegard Nossum" <vegard.nossum@...il.com>
To:	"Alan Cox" <alan@...rguk.ukuu.org.uk>
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)

On Sat, Feb 23, 2008 at 7:31 PM, Alan Cox <alan@...rguk.ukuu.org.uk> wrote:
> 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 ?

Just a quick follow-up. On regular bootups, I get this message:

ata1: SATA max UDMA/133 cmd 0xf8850100 ctl 0x00000000 bmdma 0x00000000 irq 218
ata2: SATA max UDMA/133 cmd 0xf8850180 ctl 0x00000000 bmdma 0x00000000 irq 218

while the nosmp one gets this (the screenshot cut the irq part):

ata1: SATA max UDMA/133 abar m2048@...b304000 port 0x9b304100 irq 223
ata2: SATA max UDMA/133 abar m2048@...b304000 port 0x9b304100 irq 223

Don't know if the irq # change is significant or not. Will try noapic now.


Vegard
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