v2.6.24-rc2-409-g9418d5d: attempt to access beyond end of device

v2.6.24-rc2-409-g9418d5d: attempt to access beyond end of device

[Thomas Meyer]

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?

mfg
thomas

Re: v2.6.24-rc2-409-g9418d5d: attempt to access beyond end of device

[Thomas Meyer]

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

Re: v2.6.24-rc2-409-g9418d5d: attempt to access beyond end of device

[Ingo Molnar]

(added Cc:s)

* Thomas Meyer <thomas@m3y3r.de> wrote:

> 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

good question. A quirky way would be to look at:

  ls -l .git/refs/tags/

and compare it with the commit date. But ... that doesnt necessarily 
work if a tag has been created after the commit but before the commit 
was merged upstream.

> 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.

nice - that commit should then be reverted.

	Ingo

Re: v2.6.24-rc2-409-g9418d5d: attempt to access beyond end of device

[Matthew Wilcox]

On Wed, Nov 14, 2007 at 03:53:15PM +0100, Ingo Molnar wrote:
> > By the way: Reverting commit 6f5391c283d7fdcf24bf40786ea79061919d1e1d 
> > makes the same cd medium readable again on v2.6.24-rc2-409-g9418d5d.
> 
> nice - that commit should then be reverted.

We're investigating; see bugzilla 9370.  Waiting on confirmation of
usage of ide-scsi.

-- 
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."