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: <47EDC82C.5070800@gmail.com>
Date:	Sat, 29 Mar 2008 13:40:12 +0900
From:	Tejun Heo <htejun@...il.com>
To:	"Peter F. Patel-Schneider" <pfps@...earch.bell-labs.com>
CC:	pfps@...izon.net, alan@...rguk.ukuu.org.uk,
	linux-kernel@...r.kernel.org, linux-pci@...ey.karlin.mff.cuni.cz,
	linux-pcmcia@...ts.infradead.org
Subject: Re: 2.6.23-rc9-git4: pata_pcmcia, disabling IRQ #9 and Re: libata
 and legacy ide pcmcia failure

Hello,

Peter F. Patel-Schneider wrote:
> From: Tejun Heo <htejun@...il.com>
> Subject: Re: 2.6.23-rc9-git4: pata_pcmcia, disabling IRQ #9 and Re: libata and legacy ide pcmcia failure
> Date: Wed, 26 Mar 2008 23:44:39 +0900
> 
> [Problems with PCMCIA adapter and CF card on ThinkPad T60p.]
> 
>> Does irqpoll help?
> 
> Yes!
> 
> Booting with the irqpoll boot option results in correct behaviour even
> with repeated insertions and removals (with or without unmounting from
> desktop) and when booting with or without the adapter and card inserted.
> Much better (but slower).
> 
> Booting without the irqpoll boot option and no adapter and card in at
> boot results in the bad behaviour when the adapter and card are first
> inserted.  Booting without the irqpoll boot option and the adapter and
> card in at boot results in more-or-less correct behaviour (there is an
> extra icon on the desktop for the media, but this is a known problem and
> probably not related), although in the past the behaviour in this
> situation has been somewhat non-deterministic.
> 
> Problem solved?  Or not?

Well, we're getting somewhere but not really there yet.  Somehow IRQ 
routing didn't get setup right.  I don't have much idea on how to track 
it down.  Cc'ing linux-pci and linux-pcmcia.

Hello, guys, on tp60, IRQ on PCMCIA CF controller isn't working.  I 
don't know whether this is because IRQ isn't routed properly or someone 
didn't wire the ATA interrupt line.  Any ideas?

Thanks.

-- 
tejun
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