Re: SATA access beyond end of device - How to fix

[Dwaine Garden <DwaineGarden@xxxxxxxxxx>]

Dwaine Garden wrote:
> I'm getting the following under Fedora 5 and 6 rawhide.   Because of 
> this situation, I can not use a kernel higher than 2.6.15-1.2041_FC5smp.
> 2064 kernal complains that device-mapper can not divide by chunk 
> size.  Logical volume was created by Fedora 5 test2 installation DVD.
>
> How would some sorry soul resolve this?
>
> PCI: Via IRQ fixup for 0000:00:0f.0, from 11 to 0
> Mar 21 20:42:30 www kernel: sata_via 0000:00:0f.0: routed to hard irq 
> line 0
> Mar 21 20:42:30 www kernel: ata1: SATA max UDMA/133 cmd 0xBC00 ctl 
> 0xC002 bmdma 0xCC00 irq 16
> Mar 21 20:42:30 www kernel: ata2: SATA max UDMA/133 cmd 0xC400 ctl 
> 0xC802 bmdma 0xCC08 irq 16
> Mar 21 20:42:30 www kernel: ata1: SATA link up 1.5 Gbps (SStatus 113)
> Mar 21 20:42:30 www kernel: ata1: dev 0 ATA-7, max UDMA/133, 156250000 
> sectors: LBA48
> Mar 21 20:42:30 www kernel: ata1: dev 0 configured for UDMA/133
> Mar 21 20:42:30 www kernel: scsi0 : sata_via
> Mar 21 20:42:30 www kernel: ata2: SATA link up 1.5 Gbps (SStatus 113)
> Mar 21 20:42:30 www kernel: ata2: dev 0 ATA-6, max UDMA/133, 156301488 
> sectors: LBA
> Mar 21 20:42:30 www kernel: ata2: dev 0 configured for UDMA/133
> Mar 21 20:42:30 www kernel: scsi1 : sata_via
> Mar 21 20:42:30 www kernel:   Vendor: ATA       Model: WDC 
> WD800JD-75LS  Rev: 09.0
> Mar 21 20:42:30 www kernel:   Type:   
> Direct-Access                      ANSI SCSI revision: 05
> Mar 21 20:42:30 www kernel: SCSI device sda: 156250000 512-byte hdwr 
> sectors (80000 MB)
> Mar 21 20:42:30 www kernel: sda: Write Protect is off
> Mar 21 20:42:30 www kernel: SCSI device sda: drive cache: write back
> Mar 21 20:42:30 www kernel: SCSI device sda: 156250000 512-byte hdwr 
> sectors (80000 MB)
> Mar 21 20:42:30 www kernel: sda: Write Protect is off
> Mar 21 20:42:30 www kernel: SCSI device sda: drive cache: write back
> Mar 21 20:42:30 www kernel:  sda: sda1 sda2 sda3
> Mar 21 20:42:30 www kernel: sd 0:0:0:0: Attached scsi disk sda
> Mar 21 20:42:30 www kernel:   Vendor: ATA       Model: WDC 
> WD800JD-22JN  Rev: 05.0
> Mar 21 20:42:30 www kernel:   Type:   
> Direct-Access                      ANSI SCSI revision: 05
> Mar 21 20:42:30 www kernel: SCSI device sdb: 156301488 512-byte hdwr 
> sectors (80026 MB)
> Mar 21 20:42:30 www kernel: sdb: Write Protect is off
> Mar 21 20:42:30 www kernel: SCSI device sdb: drive cache: write back
> Mar 21 20:42:30 www kernel: SCSI device sdb: 156301488 512-byte hdwr 
> sectors (80026 MB)
> Mar 21 20:42:30 www kernel: sdb: Write Protect is off
> Mar 21 20:42:30 www kernel: SCSI device sdb: drive cache: write back
> Mar 21 20:42:30 www kernel:  sdb: unknown partition table
> Mar 21 20:42:30 www kernel: sd 1:0:0:0: Attached scsi disk sdb
> Mar 21 20:42:30 www kernel: device-mapper: 4.5.0-ioctl (2005-10-04) 
> initialised: dm-devel@xxxxxxxxxx
> Mar 21 20:42:30 www kernel: attempt to access beyond end of device
> Mar 21 20:42:30 www kernel: sda: rw=0, want=156250010, limit=156250000
> Mar 21 20:42:30 www kernel: Buffer I/O error on device dm-0, logical 
> block 156249996
> Mar 21 20:42:30 www kernel: attempt to access beyond end of device
> Mar 21 20:42:30 www kernel: sda: rw=0, want=156250012, limit=156250000
> Mar 21 20:42:30 www kernel: Buffer I/O error on device dm-0, logical 
> block 156249997
> Mar 21 20:42:30 www kernel: attempt to access beyond end of device
> Mar 21 20:42:30 www kernel: sda: rw=0, want=156250014, limit=156250000
> Mar 21 20:42:30 www kernel: Buffer I/O error on device dm-0, logical 
> block 156249998
> Mar 21 20:42:30 www kernel: attempt to access beyond end of device
> Mar 21 20:42:30 www kernel: sda: rw=0, want=156250010, limit=156250000
> Mar 21 20:42:30 www kernel: Buffer I/O error on device dm-0, logical 
> block 156249996
> Mar 21 20:42:30 www kernel: attempt to access beyond end of device
> Mar 21 20:42:30 www kernel: sda: rw=0, want=156250012, limit=156250000
> Mar 21 20:42:30 www kernel: Buffer I/O error on device dm-0, logical 
> block 156249997
> Mar 21 20:42:30 www kernel: attempt to access beyond end of device
> Mar 21 20:42:30 www kernel: sda: rw=0, want=156250014, limit=156250000
> Mar 21 20:42:30 www kernel: Buffer I/O error on device dm-0, logical 
> block 156249998
> Mar 21 20:42:30 www kernel: EXT3-fs: INFO: recovery required on 
> readonly filesystem.
> Mar 21 20:42:30 www kernel: EXT3-fs: write access will be enabled 
> during recovery.
> Mar 21 20:42:30 www kernel: kjournald starting.  Commit interval 5 
> seconds
> Mar 21 20:42:31 www kernel: EXT3-fs: dm-4: orphan cleanup on readonly fs
> Mar 21 20:42:31 www kernel: EXT3-fs: dm-4: 5 orphan inodes deleted
> Mar 21 20:42:31 www kernel: EXT3-fs: recovery complete.
> Mar 21 20:42:31 www kernel: EXT3-fs: mounted filesystem with ordered 
> data mode
Here is the patch which does not allow me to boot.  I would be grateful 
for any help where a reformat and install is not needed.

> [PATCH] dm stripe: Fix bounds 
> <http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=8ba32fde2c5be52865b2fd7e5e3752a46971fabe> 
>
> author 	Kevin Corry <kevcorry@xxxxxxxxxx>
>
> 	Fri, 17 Mar 2006 07:04:03 +0000 (23:04 -0800)
> committer 	Linus Torvalds <torvalds@xxxxxxxxxxx>
>
> 	Fri, 17 Mar 2006 15:51:25 +0000 (07:51 -0800)
> commit 	8ba32fde2c5be52865b2fd7e5e3752a46971fabe
> tree 	91988d69b76b1d142117b0ed827fc20eb11c9360 
> <http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=tree;h=91988d69b76b1d142117b0ed827fc20eb11c9360;hb=8ba32fde2c5be52865b2fd7e5e3752a46971fabe> 
> 	tree 
> <http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=tree;h=91988d69b76b1d142117b0ed827fc20eb11c9360;hb=8ba32fde2c5be52865b2fd7e5e3752a46971fabe> 
>
> parent 	82c3c03a4096badd026c6e337f3c5dde020e9ec6 
> <http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=82c3c03a4096badd026c6e337f3c5dde020e9ec6> 
> 	commit 
> <http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=82c3c03a4096badd026c6e337f3c5dde020e9ec6> 
> | commitdiff 
> <http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=8ba32fde2c5be52865b2fd7e5e3752a46971fabe;hp=82c3c03a4096badd026c6e337f3c5dde020e9ec6> 
>
>
> [PATCH] dm stripe: Fix bounds
>
> The dm-stripe target currently does not enforce that the size of a stripe
> device be a multiple of the chunk-size.  Under certain conditions, this can
> lead to I/O requests going off the end of an underlying device.  This
> test-case shows one example.
>
> echo "0 100 linear /dev/hdb1 0" | dmsetup create linear0
> echo "0 100 linear /dev/hdb1 100" | dmsetup create linear1
> echo "0 200 striped 2 32 /dev/mapper/linear0 0 /dev/mapper/linear1 0" | \
>    dmsetup create stripe0
> dd if=/dev/zero of=/dev/mapper/stripe0 bs=1k
>
> This will produce the output:
> dd: writing '/dev/mapper/stripe0': Input/output error
> 97+0 records in
> 96+0 records out
>
> And in the kernel log will be:
> attempt to access beyond end of device
> dm-0: rw=0, want=104, limit=100
>
> The patch will check that the table size is a multiple of the stripe
> chunk-size when the table is created, which will prevent the above striped
> device from being created.
>
> This should not affect tools like LVM or EVMS, since in all the cases I can
> think of, striped devices are always created with the sizes being a
> multiple of the chunk-size.
>
> The size of a stripe device must be a multiple of its chunk-size.
>
> (akpm: that typecast is quite gratuitous)
>
> Signed-off-by: Kevin Corry <kevcorry@xxxxxxxxxx>
> Signed-off-by: Alasdair G Kergon <agk@xxxxxxxxxx>
> Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
> Signed-off-by: Linus Torvalds <torvalds@xxxxxxxx>

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