From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 16539] end_request: I/O error, dev sr1, sector 0; quiet_error:
40 callbacks suppressed
Date: Thu, 26 Aug 2010 23:38:17 GMT
Message-ID: <201008262338.o7QNcHah004319@demeter1.kernel.org>
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https://bugzilla.kernel.org/show_bug.cgi?id=16539
--- Comment #4 from Anonymous Emailer 2010-08-26 23:38:10 ---
Reply-To: James.Bottomley@suse.de
On Thu, 2010-08-26 at 21:56 +0000, bugzilla-daemon@bugzilla.kernel.org
wrote:
> --- Comment #3 from Andrew Morton 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
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