From: Tejun Heo <htejun@gmail.com>
To: Mark Lord <liml@rtr.ca>
Cc: Jeff Garzik <jgarzik@pobox.com>,
IDE/ATA development list <linux-ide@vger.kernel.org>
Subject: Re: libata-eh/pmp command sequence on NCQ media error
Date: Thu, 01 May 2008 11:55:52 +0900 [thread overview]
Message-ID: <48193138.2070306@gmail.com> (raw)
In-Reply-To: <48192ED5.9030402@rtr.ca>
Mark Lord wrote:
> Tejun Heo wrote:
>> Mark Lord wrote:
>>>> So why are we taking a hammer to things there?
>>
>> Hmmm... The reset action might be too heavy handed but maybe keeping
>> that categorized as ATA bus error is still a good idea so that
>> multiple errors w/ that bit set can trigger speed down.
>>
>>> FWIW, this patch fixes it for me (and fixes a misleading printk).
>>> Or I could just clear that bit from sata_mv before invoking EH.
>>> (??)
>>
>> Does the bit get set for the host link or pmp fanout links?
> ..
>
> It's only on the pmp fanout link. Dunno why it gets set, but it does.
Which PMP are you using? I've never seen something like that. If it's
on fan-out port, you'll want to implement a quirk in libata-pmp.c as it
will probably happen with other controllers too.
Thanks.
--
tejun
next prev parent reply other threads:[~2008-05-01 2:55 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-23 20:33 [PATCH] libata-eh copy result_tf flags from outgoing tf Mark Lord
2008-04-23 22:14 ` Tejun Heo
2008-04-23 23:37 ` Mark Lord
2008-04-24 1:02 ` Tejun Heo
2008-04-24 2:24 ` Mark Lord
2008-04-24 2:43 ` Tejun Heo
2008-04-24 2:36 ` Mark Lord
2008-04-24 2:42 ` Tejun Heo
2008-04-24 2:36 ` [PATCH] libata-eh set tf flags in NCQ EH result_tf Mark Lord
2008-04-24 2:43 ` Tejun Heo
2008-04-25 5:15 ` Jeff Garzik
2008-04-25 13:56 ` libata-eh/pmp command sequence on NCQ media error Mark Lord
2008-04-25 16:10 ` Tejun Heo
2008-04-25 16:34 ` Mark Lord
2008-04-30 21:33 ` Mark Lord
2008-04-30 21:40 ` Mark Lord
2008-04-30 21:52 ` Mark Lord
2008-05-01 0:51 ` Tejun Heo
2008-05-01 2:45 ` Mark Lord
2008-05-01 2:55 ` Tejun Heo [this message]
2008-05-01 3:47 ` Mark Lord
2008-05-01 11:24 ` Mark Lord
2008-05-01 12:24 ` Tejun Heo
2008-05-01 12:33 ` Mark Lord
2008-05-01 12:40 ` Tejun Heo
2008-05-01 2:48 ` Mark Lord
2008-05-01 2:54 ` Tejun Heo
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