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From: James Bottomley <James.Bottomley@suse.de>
To: bugzilla-daemon@bugzilla.kernel.org
Cc: linux-scsi@vger.kernel.org
Subject: Re: [Bug 16539] end_request: I/O error, dev sr1, sector 0; quiet_error: 40 callbacks suppressed
Date: Thu, 26 Aug 2010 18:03:42 -0500	[thread overview]
Message-ID: <1282863822.8133.56.camel@mulgrave.site> (raw)
In-Reply-To: <201008262156.o7QLutdE017280@demeter1.kernel.org>

On Thu, 2010-08-26 at 21:56 +0000, bugzilla-daemon@bugzilla.kernel.org
wrote:
> --- Comment #3 from Andrew Morton <akpm@linux-foundation.org>  2010-08-26 21:56:51 ---
> (recategorised as scsi)
> 
> [    3.468174] sr1: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda
> tray
> [    3.468305] sr 4:0:0:0: Attached scsi CD-ROM sr1
> [    3.468381] sr 4:0:0:0: Attached scsi generic sg2 type 5
> [    8.126108] EXT4-fs (sda5): mounted filesystem with ordered data mode
> [   15.752273] udev: starting version 151
> [   15.770035] Adding 3574424k swap on /dev/sda7.  Priority:-1 extents:1
> across:3574424k 
> [   16.055126] sony-laptop: Sony Notebook Control Driver v0.6.
> [   16.090212] sr 4:0:0:0: [sr1] Result: hostbyte=DID_OK
> driverbyte=DRIVER_SENSE
> [   16.090217] sr 4:0:0:0: [sr1] Sense Key : Illegal Request [current] 
> [   16.090222] sr 4:0:0:0: [sr1] Add. Sense: Illegal mode for this track
> [   16.090229] sr 4:0:0:0: [sr1] CDB: Read(10): 28 00 00 00 00 00 00 00 01 00
> [   16.090239] end_request: I/O error, dev sr1, sector 0
> [   16.090245] Buffer I/O error on device sr1, logical block 0
> 
> hm, who maintains drivers/scsi/sr.c?

Well, technically, that's Jens.

However, what's the actual bug here ... as in what's going on?

The kernel trace implies that some user land process tried to read block
0 and got told it's not readable, giving an I/O error.

MMC says this usually happens when you try to read a sector with the
wrong mode ... what is the program doing the read?

James




  reply	other threads:[~2010-08-26 23:03 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-16539-11613@https.bugzilla.kernel.org/>
2010-08-26 21:56 ` [Bug 16539] end_request: I/O error, dev sr1, sector 0; quiet_error: 40 callbacks suppressed bugzilla-daemon
2010-08-26 23:03   ` James Bottomley [this message]
2010-08-26 23:38 ` bugzilla-daemon
2011-02-28 22:28 ` bugzilla-daemon

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