Message-ID: <473A10C2.6040102@m3y3r.de>
Date: Tue, 13 Nov 2007 22:01:54 +0100
From: Thomas Meyer <thomas@m3y3r.de>
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To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: v2.6.24-rc2-409-g9418d5d: attempt to access beyond end of device
References: <4739F112.5060604@m3y3r.de>
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Thomas Meyer schrieb:
> i get these errors in the kernel log while trying to copy a file from an
> iso9660 file system (/dev/sr0) to my intenal hard disk. This is the
> second cd/dvd that gives me this error. kernel 2.6.23 works without any
> problems, so i think this is not an medium error:
>
> ISO 9660 Extensions: Microsoft Joliet Level 3
> ISOFS: changing to secondary root
> attempt to access beyond end of device
> sr0: rw=0, want=81220, limit=40944
> Buffer I/O error on device sr0, logical block 20304
> attempt to access beyond end of device
> sr0: rw=0, want=81224, limit=40944
> Buffer I/O error on device sr0, logical block 20305
> attempt to access beyond end of device
> sr0: rw=0, want=81228, limit=40944
> Buffer I/O error on device sr0, logical block 20306
> attempt to access beyond end of device
> sr0: rw=0, want=81232, limit=40944
> Buffer I/O error on device sr0, logical block 20307
> attempt to access beyond end of device
> sr0: rw=0, want=81236, limit=40944
> Buffer I/O error on device sr0, logical block 20308
> attempt to access beyond end of device
> sr0: rw=0, want=81240, limit=40944
> Buffer I/O error on device sr0, logical block 20309
> attempt to access beyond end of device
> sr0: rw=0, want=81244, limit=40944
> Buffer I/O error on device sr0, logical block 20310
> attempt to access beyond end of device
> sr0: rw=0, want=81248, limit=40944
> Buffer I/O error on device sr0, logical block 20311
> attempt to access beyond end of device
> sr0: rw=0, want=81220, limit=40944
> Buffer I/O error on device sr0, logical block 20304
> attempt to access beyond end of device
> sr0: rw=0, want=81224, limit=40944
> Buffer I/O error on device sr0, logical block 20305
> attempt to access beyond end of device
> sr0: rw=0, want=1028968, limit=40944
> Buffer I/O error on device sr0, logical block 257241
> attempt to access beyond end of device
> sr0: rw=0, want=1028972, limit=40944
> Buffer I/O error on device sr0, logical block 257242
> attempt to access beyond end of device
> sr0: rw=0, want=1028976, limit=40944
> attempt to access beyond end of device
> sr0: rw=0, want=1028980, limit=40944
> attempt to access beyond end of device
> sr0: rw=0, want=1028984, limit=40944
> attempt to access beyond end of device
> sr0: rw=0, want=1028988, limit=40944
> attempt to access beyond end of device
> sr0: rw=0, want=1028992, limit=40944
> attempt to access beyond end of device
> sr0: rw=0, want=1028996, limit=40944
> attempt to access beyond end of device
> sr0: rw=0, want=1028968, limit=40944
> attempt to access beyond end of device
> sr0: rw=0, want=1028972, limit=40944
>
> does anybody have similiar problems with current linus kernel?
>   
I have a question: How to find out between which two tags a given commit
lies?

E.g. commit 6f5391c283d7fdcf24bf40786ea79061919d1e1d ([SCSI] Get rid of
scsi_cmnd->done), which is the last commit that changed drivers/scsi/sr.c

i now discovered (using gitk and a lot of scolling) that above commit is
after v2.6.23 but before v2.6.24-rc1 (so it is a possible offender)

You see i am just too lazy to bisect (and reboot 20th times or so) and i
just wanted to try my luck and revert the last
 commit and see if this fixes my problem.

By the way:
Reverting commit 6f5391c283d7fdcf24bf40786ea79061919d1e1d makes the same
cd medium readable again on v2.6.24-rc2-409-g9418d5d.

mfg
thomas
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