From: Mark Lord <lkml@rtr.ca>
To: Oliver Tennert <O.Tennert@science-computing.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: DVD+-R[W] regression in 2.6.12/13
Date: Mon, 05 Sep 2005 12:24:17 -0400 [thread overview]
Message-ID: <431C7131.3030506@rtr.ca> (raw)
In-Reply-To: <200509051533.01465.tennert@science-computing.de>
Oliver Tennert wrote:
>
> "hdparm -I /dev/dvdrecorder" leads to the output:
>
> /dev/dvdrecorder:
> HDIO_DRIVE_CMD(identify) failed: Input/output error
>
> The kernel tells me:
>
> [4296893.262000] hdd: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
> [4296893.262000] hdd: drive_cmd: error=0x04 { AbortedCommand }
> [4296893.262000] ide: failed opcode was: 0xec
Those messages are "normal" for an ATAPI drive.
hdparm first tries the IDENTIFY opcode (0xec), and if that fails (above)
it then tries the PACKET_IDENTIFY opcode (0xa1), which should work for ATAPI.
I'm not sure why the "failed: Input/output error" (-EIO) result is
being returned from the ATA layer in this case. Driver bug, most likely.
Cheers
next prev parent reply other threads:[~2005-09-05 16:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-05 13:33 DVD+-R[W] regression in 2.6.12/13 Oliver Tennert
2005-09-05 16:24 ` Mark Lord [this message]
2005-09-05 16:27 ` Mark Lord
2005-09-06 5:10 ` Oliver Tennert
2005-09-05 17:02 ` Alan Cox
2005-09-05 16:44 ` Mark Lord
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