From: Tejun Heo <tj@kernel.org>
To: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>,
linux-ide@vger.kernel.org
Subject: Re: [RFC] ata/core: don't enable the interrupt while activating the host
Date: Wed, 07 Apr 2010 06:56:10 +0900 [thread overview]
Message-ID: <4BBBADFA.10903@kernel.org> (raw)
In-Reply-To: <4BBB0641.3040500@ru.mvista.com>
On 04/06/2010 07:00 PM, Sergei Shtylyov wrote:
>> ata_sff_check_status() does not report ATA_DRQ set so I don't know why
>> the interrupt is comming.
>
> Perhaps the drive incorrectly triggers interrupt on setting the nIEN
> bit -- some drives are known to do this; there is a blacklist of such
> drives in the IDE core so that it avoids setting nIEN bit for them.
Arghh.... that stinks. Maybe we should port the list over? What is
the ATA device in question here?
--
tejun
next prev parent reply other threads:[~2010-04-06 21:52 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-11 22:04 [RFC] ata/core: don't enable the interrupt while activating the host Sebastian Andrzej Siewior
2010-03-25 0:30 ` Tejun Heo
2010-03-25 22:04 ` Sebastian Andrzej Siewior
2010-03-25 23:54 ` Tejun Heo
2010-04-06 9:45 ` Sebastian Andrzej Siewior
2010-04-06 10:00 ` Sergei Shtylyov
2010-04-06 21:56 ` Tejun Heo [this message]
2010-04-07 7:52 ` Sebastian Andrzej Siewior
2010-04-13 14:38 ` Sebastian Andrzej Siewior
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