From: Andy Warner <andyw@pobox.com>
To: Brad Campbell <brad@wasp.net.au>
Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [SATA] status report, libata-dev queue updated
Date: Fri, 5 Nov 2004 13:26:13 -0600 [thread overview]
Message-ID: <20041105132613.A30910@florence.linkmargin.com> (raw)
In-Reply-To: <418BCED3.1030600@wasp.net.au>; from brad@wasp.net.au on Fri, Nov 05, 2004 at 11:04:51PM +0400
Brad Campbell wrote:
> [...]
> Read that as "I have tried really, really hard to break it and as yet been unable to".
Is your system SMP ? I'm actively tracking a problem now with
pass-thru behaviour (via /dev/sg* ) on SMP systems.
Symptom is a system freeze after a few messages like
this:
ata3: command 0x34 timeout, stat 0x58 host_stat 0x0
ata2: command 0x24 timeout, stat 0x58 host_stat 0x0
ata3: status=0x58 { DriveReady SeekComplete <4>ATA: abnormal status 0x58 on port 0xF8A3CCC7
ata2: status=0x58 { DriveReady SeekComplete DataRequest }
DataReq
This particular example is of a Read Sectors command pending
on one drive and Write Sectors on another. Don't know if it
is the pio state machine not being SMP-safe, or what just yet.
--
andyw@pobox.com
Andy Warner Voice: (612) 801-8549 Fax: (208) 575-5634
next prev parent reply other threads:[~2004-11-05 19:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-05 10:00 [SATA] status report, libata-dev queue updated Jeff Garzik
2004-11-05 19:04 ` Brad Campbell
2004-11-05 19:26 ` Andy Warner [this message]
2004-11-05 19:44 ` Brad Campbell
2004-11-06 0:06 ` Andy Warner
-- strict thread matches above, loose matches on Subject: below --
2004-10-01 4:58 [sata] " Jeff Garzik
2004-10-01 11:55 ` Brad Campbell
2004-10-01 12:38 ` Jesse Stockall
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