From: Jeff Garzik <jgarzik@pobox.com>
To: Kien Pham <kienca@lycos.com>
Cc: "linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>
Subject: Re: LibATA ATAPI-Found lockup spot.
Date: Tue, 18 Jan 2005 14:43:20 -0500 [thread overview]
Message-ID: <41ED66D8.2040808@pobox.com> (raw)
In-Reply-To: <20050118191122.4DC7ACA0AF@ws7-4.us4.outblaze.com>
Kien Pham wrote:
> Hi Jeff,
>
> It blocks forever on line 2450 of libata-core.c. This is on vanilla
> 2.6.10 kernel source. Relevent snippet follows so you don't have to dig.
> Basically, the middle SCSI layer successfully sends 3 INQUIRY commands.
> Then it sends a REPORT LUNs command that fails with a status 0x50. The
> error register reads 0x60 at this point. Then the ATAPI layer sends a
> REQUEST SENSE which never completes because an interrupt never occurs
> and we're stuck at line 2450 waiting for completion. O.K. I know the how
> it happens, any ideas on the why? Or am I on my own? :)
I think Bart mentioned something about problems with REPORT LUNS... I
bet things would work if we didn't send that command...
Jeff
next parent reply other threads:[~2005-01-18 19:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20050118191122.4DC7ACA0AF@ws7-4.us4.outblaze.com>
2005-01-18 19:43 ` Jeff Garzik [this message]
2005-01-18 20:35 ` LibATA ATAPI-Found lockup spot Bartlomiej Zolnierkiewicz
2005-01-18 21:22 Kien Pham
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