linux-kernel - Re: [PATCH] libata: Fix early use of port printk. (Was Re: ata4294967295: failed to start port (errno=-19))

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Date:	Sat, 01 Dec 2007 17:45:59 -0500
From:	Jeff Garzik <jeff@...zik.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	Meelis Roos <mroos@...ux.ee>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	akpm@...l.org
Subject: Re: [PATCH] libata: Fix early use of port printk. (Was Re: ata4294967295:
 failed to start port (errno=-19))

Alan Cox wrote:
> On Fri, 30 Nov 2007 14:34:11 +0200 (EET)
> Meelis Roos <mroos@...ux.ee> wrote:
> 
>>> Can you stick a stack trace in at that point ? That would help diagnose
>>> it a great deal quicker.
>> Finally done - found out hard way that BUG() is too bad and 
>> dump_st5ack() suits me better.
> 
> Thanks. This should fix the real cause, and also allow for port start to
> fail politely with -ENODEV.
> 
> Signed-off-by: Alan Cox <alan@...hat.com>

applied #upstream-fixes


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