linux-kernel - Re: 2.6.23-rc9-git4: pata_pcmcia, disabling IRQ #9 and Re: libata and legacy ide pcmcia failure

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Message-ID: <20080321104002.27a7d19e@core>
Date:	Fri, 21 Mar 2008 10:40:02 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Tejun Heo <htejun@...il.com>
Cc:	"Peter F. Patel-Schneider" <pfps@...izon.net>,
	linux-kernel@...r.kernel.org,
	"Peter F. Patel-Schneider" <pfps@...earch.bell-labs.com>
Subject: Re: 2.6.23-rc9-git4: pata_pcmcia, disabling IRQ #9 and Re: libata
 and legacy ide pcmcia failure

On Fri, 21 Mar 2008 10:38:31 +0900
Tejun Heo <htejun@...il.com> wrote:

> Alan Cox wrote:
> > O> Mar 20 19:51:45 idefix kernel: ata12: PATA max PIO0 cmd 0xa100 ctl 
> >> 0xa10e irq 3
> >> Mar 20 19:52:15 idefix kernel: ata12.00: qc timeout (cmd 0x91)
> >> Mar 20 19:52:15 idefix kernel: ata12.00: failed to IDENTIFY 
> >> (INIT_DEV_PARAMS failed, err_mask=0x4)
> > 
> > Thinkpad T61p .. I've seen a few of these.
> > 
> > Firstly try the card and adapter in a different PC and let me know if
> > that works. So far they do. If that is the case get the latest firmware
> > updates (BIOS etc) for your thinkpad and see if the problem goes away.
> > They (or our ACPI code I guess it may be) have some serious IRQ routing
> > problems on this box.
> 
> Any chance the thing just chokes up on INIT_DEV_PARAMS?

Possibly but I've seen several previosu reports showing no IRQ being
delivered off these machines. You get IRQ 3 reported as assigned and an
IRQ 9 turns up.

Alan
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