From: Tejun Heo <tj@kernel.org>
To: Mikael Pettersson <mikpe@it.uu.se>
Cc: alan@lxorguk.ukuu.org.uk, linux-ide@vger.kernel.org
Subject: Re: [BUG] 2.6.29-rc1: ata_piix boot hang due to bmdma32 change
Date: Sun, 25 Jan 2009 10:03:02 +0900 [thread overview]
Message-ID: <497BBA46.3000605@kernel.org> (raw)
In-Reply-To: <18805.35930.588019.518198@harpo.it.uu.se>
Hello,
Mikael Pettersson wrote:
> The problem is still present in 2.6.29-rc2.
>
> More debugging first showed that only the specific machine mentioned
> above is affected, as I've tested -rc1 on several other ata_piix boxes
> with various oldish disks and cdroms and none of the others triggered
> the hang.
>
> Secondly, the hang is due to the HP CD-Writer drive as having only it
> on the second port suffices to produce the hang. It doesn't matter if
> it's configured as master or slave.
>
> In any event, this shows that using 32-bit I/O ops should also be a
> function of the drive you're talking to, not just the controller.
If you connect the writer to another machine, does it make the machine
hang too?
--
tejun
next prev parent reply other threads:[~2009-01-25 1:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-15 8:42 [BUG] 2.6.29-rc1: ata_piix boot hang due to bmdma32 change Mikael Pettersson
2009-01-20 8:33 ` Mikael Pettersson
2009-01-25 1:03 ` Tejun Heo [this message]
2009-01-25 10:23 ` Mikael Pettersson
2009-01-31 12:20 ` Mikael Pettersson
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