Re: extra bytes written to SATA DVD drive on kernel 2.6.23 till 2.6.24.2

[Mike Galbraith <efault@gmx.de>]

On Mon, 2008-02-25 at 20:05 +0100, Gerold Jury wrote:
> Hello,

Hi,

> I have two DVD drives, one connected to the SATA port (LG) the other to the 
> IDE port (PHILIPS) of a via chipset.
> They are driven by VIA SATA support (SATA_VIA) and VIA PATA support 
> (PATA_VIA).
> 
> When I write an iso image to the drive on the SATA port /dev/sr0 it has some 
> extra bytes on disk which make the disk unreadable.
> Writing to the IDE drive /dev/sr1 works well.

I take it kernels < 2.6.23 are known to be functional?  If so, a git
bisect should be really easy if you're a git user _and_ the breakage is
in drivers/ata/sata_via.c, there are only two meaningful commits
involved.

homer:..git/linux-2.6 # git bisect start -- drivers/ata/sata_via.c
homer:..git/linux-2.6 # git bisect good v2.6.22
homer:..git/linux-2.6 # git bisect bad v2.6.23
Bisecting: 2 revisions left to test after this

A full bisection would take quite a few more builds.

(I haven't noticed anybody else reporting similar troubles, and quite a
lot of time has passed since 2.6.22 was released.. that makes me
suspicious of your hardware)

Maybe you should post again, and add cc's to  linux-ide@vger.kernel.org
and  linux-scsi@vger.kernel.org, perhaps someone there can give you a
better idea.

> A simple test with a DVD RAM and dd instead of growisofs
> 
> dd if=/dev/zero of=/dev/srX bs=1024k count=10
> 
> and a readback afterwards
> 
> dd if=/dev/srX of=imageX.bin bs=1024k count=10
> 
> gives me an all zero file from the IDE drive but a file
> full of probably scsi commands for the SATA drive and looks like
> 
> 00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 00020000  2a 00 00 00 00 40 00 00  40 00 00 00 00 40 00 00  |*....@..@....@..|
> 00020010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 00040000  2a 00 00 00 00 80 00 00  40 00 00 00 00 80 00 00  |*.......@.......|
> 00040010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 00060000  2a 00 00 00 00 c0 00 00  02 00 00 00 00 c0 00 00  |*...............|
> 00060010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 00061010  00 00 00 00 00 00 00 00  2a 00 00 00 00 c2 00 00  |........*.......|
> 00061020  40 00 00 00 00 c2 00 00  00 00 00 00 00 00 00 00  |@...............|
> 00061030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 00081010  00 00 00 00 00 00 00 00  2a 00 00 00 01 02 00 00  |........*.......|
> 00081020  40 00 00 00 01 02 00 00  00 00 00 00 00 00 00 00  |@...............|
> 00081030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 000a1010  00 00 00 00 00 00 00 00  2a 00 00 00 01 42 00 00  |........*....B..|
> 000a1020  40 00 00 00 01 42 00 00  00 00 00 00 00 00 00 00  |@....B..........|
> 000a1030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 000c1010  00 00 00 00 00 00 00 00  2a 00 00 00 01 82 00 00  |........*.......|
> 000c1020  40 00 00 00 01 82 00 00  00 00 00 00 00 00 00 00  |@...............|
> 000c1030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> 
> I really need some hints to make the SATA drive usable, please.
> 
> best Regards
> Gerold
> 
> 
> uname -a
> Linux blaubaer 2.6.24.2 #4 Sun Feb 24 21:50:21 CET 2008 x86_64 AMD Athlon(tm) 
> 64 Processor 3400+ AuthenticAMD GNU/Linux
> 
> lspvi -v
> 
> 00:0f.0 RAID bus controller: VIA Technologies, Inc. VIA VT6420 SATA RAID 
> Controller (rev 80)
>         Subsystem: ASUSTeK Computer Inc. A7V600/K8V Deluxe/K8V-X/A8V Deluxe 
> motherboard
>         Flags: bus master, medium devsel, latency 64, IRQ 20
>         I/O ports at e800 [size=8]
>         I/O ports at e400 [size=4]
>         I/O ports at e000 [size=8]
>         I/O ports at d800 [size=4]
>         I/O ports at d400 [size=16]
>         I/O ports at d000 [size=256]
>         Capabilities: [c0] Power Management version 2
>         Kernel driver in use: sata_via
> 
> 00:0f.1 IDE interface: VIA Technologies, Inc. 
> VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) (prog-if 8a 
> [Master SecP PriP])
>         Subsystem: ASUSTeK Computer Inc. A7V600/K8V-X/A8V Deluxe motherboard
>         Flags: bus master, medium devsel, latency 32, IRQ 20
>         [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
>         [virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1]
>         [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
>         [virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1]
>         I/O ports at fc00 [size=16]
>         Capabilities: [c0] Power Management version 2
>         Kernel driver in use: pata_via
> 
> cat /var/log/messages
> 
> Feb 25 18:20:57 blaubaer sata_via 0000:00:0f.0: version 2.3
> Feb 25 18:20:57 blaubaer ACPI: PCI Interrupt 0000:00:0f.0[B] -> GSI 20 (level, 
> low) -> IRQ 20
> Feb 25 18:20:57 blaubaer sata_via 0000:00:0f.0: routed to hard irq line 10
> Feb 25 18:20:57 blaubaer scsi3 : sata_via
> Feb 25 18:20:57 blaubaer scsi4 : sata_via
> Feb 25 18:20:57 blaubaer ata4: SATA max UDMA/133 cmd 0xe800 ctl 0xe400 bmdma 
> 0xd400 irq 20
> Feb 25 18:20:57 blaubaer ata5: SATA max UDMA/133 cmd 0xe000 ctl 0xd800 bmdma 
> 0xd408 irq 20
> Feb 25 18:20:57 blaubaer ata4: SATA link down 1.5 Gbps (SStatus 0 SControl 
> 300)
> Feb 25 18:20:57 blaubaer ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 
> 300)
> Feb 25 18:20:57 blaubaer ata5.00: ATAPI: HL-DT-ST DVDRAM GH20NS10, EL00, max 
> UDMA/100
> Feb 25 18:20:57 blaubaer ata5.00: configured for UDMA/100
> Feb 25 18:20:57 blaubaer scsi 4:0:0:0: CD-ROM            HL-DT-ST DVDRAM 
> GH20NS10  EL00 PQ: 0 ANSI: 5
> Feb 25 18:20:57 blaubaer sr0: scsi3-mmc drive: 48x/48x writer dvd-ram cd/rw 
> xa/form2 cdda tray
> Feb 25 18:20:57 blaubaer Uniform CD-ROM driver Revision: 3.20
> Feb 25 18:20:57 blaubaer sr 4:0:0:0: Attached scsi CD-ROM sr0
> Feb 25 18:20:57 blaubaer sr 4:0:0:0: Attached scsi generic sg2 type 5
> Feb 25 18:20:57 blaubaer pata_via 0000:00:0f.1: version 0.3.3
> Feb 25 18:20:57 blaubaer ACPI: PCI Interrupt 0000:00:0f.1[A] -> GSI 20 (level, 
> low) -> IRQ 20
> Feb 25 18:20:57 blaubaer scsi5 : pata_via
> Feb 25 18:20:57 blaubaer scsi6 : pata_via
> Feb 25 18:20:57 blaubaer ata6: PATA max UDMA/133 cmd 0x1f0 ctl 0x3f6 bmdma 
> 0xfc00 irq 14
> Feb 25 18:20:57 blaubaer ata7: PATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 
> 0xfc08 irq 15
> Feb 25 18:20:57 blaubaer ata6.00: ATAPI: PHILIPS SPD2411P, BP01, max UDMA/66
> Feb 25 18:20:57 blaubaer ata6.00: limited to UDMA/33 due to 40-wire cable
> Feb 25 18:20:57 blaubaer ata6.00: configured for UDMA/33
> Feb 25 18:20:57 blaubaer scsi 5:0:0:0: CD-ROM            PHILIPS  SPD2411P         
> BP01 PQ: 0 ANSI: 5
> Feb 25 18:20:57 blaubaer sr1: scsi3-mmc drive: 48x/48x writer dvd-ram cd/rw 
> xa/form2 cdda tray
> Feb 25 18:20:57 blaubaer sr 5:0:0:0: Attached scsi CD-ROM sr1
> Feb 25 18:20:57 blaubaer sr 5:0:0:0: Attached scsi generic sg3 type 5
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