Re: libata /dev/scd0 problem: mount after burn fails without eject

[Gene Heskett <gene.heskett@gmail.com>]

On Tuesday 01 May 2007, Frank van Maarseveen wrote:
>Tested on 2.6.20.6 and 2.6.21.1
>
>I decided to swich from the old IDE drivers to libata and now there
>seems to be a little but annoying problem: cannot mount an ISO image
>after burning it.
>
>May  1 14:32:55 kernel: attempt to access beyond end of device
>May  1 14:32:55 kernel: sr0: rw=0, want=68, limit=4
>May  1 14:32:55 kernel: isofs_fill_super: bread failed, dev=sr0,
> iso_blknum=16, block=16
>
>an "eject" command seems to fix the state of the PATA DVD writer
>or driver. The problem occurs for burning a CD and for DVD too with
>identical error messages.
>
I'm not sure if that's "proper" or not, but such has always been the case 
here.  Even k3b has been ejecting and remounting the cd/dvd since forever 
when it is asked to do a verify pass.

>relevant kernel boot messages:
>| ata1: PATA max UDMA/100 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x0001ffa0 irq
>| 14 ata2: PATA max UDMA/100 cmd 0x00010170 ctl 0x00010376 bmdma 0x0001ffa8
>| irq 15 scsi0 : ata_piix
>| ata1.00: ATA-7: ST3120814A, 3.AAJ, max UDMA/100
>| ata1.00: 234441648 sectors, multi 8: LBA48
>| ata1.00: configured for UDMA/100
>| scsi1 : ata_piix
>| ata2.00: ATAPI, max UDMA/33
>| ata2.01: ATAPI, max UDMA/33
>| ata2.00: configured for UDMA/33
>| ata2.01: configured for UDMA/33
>| scsi 0:0:0:0: Direct-Access     ATA      ST3120814A       3.AA PQ: 0 ANSI:
>| 5 SCSI device sda: 234441648 512-byte hdwr sectors (120034 MB)
>| sda: Write Protect is off
>| SCSI device sda: write cache: enabled, read cache: enabled, doesn't
>| support DPO or FUA SCSI device sda: 234441648 512-byte hdwr sectors
>| (120034 MB)
>| sda: Write Protect is off
>| SCSI device sda: write cache: enabled, read cache: enabled, doesn't
>| support DPO or FUA sda: sda1 sda2 sda4
>| sd 0:0:0:0: Attached scsi disk sda
>| sd 0:0:0:0: Attached scsi generic sg0 type 0
>| scsi 1:0:0:0: CD-ROM            HP       DVD Writer 640c  CS30 PQ: 0 ANSI:
>| 5 sr0: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray
>| Uniform CD-ROM driver Revision: 3.20
>| sr 1:0:0:0: Attached scsi generic sg1 type 5
>| scsi 1:0:1:0: CD-ROM            SAMSUNG  CD-ROM SC-148C   B105 PQ: 0 ANSI:
>| 5 sr1: scsi3-mmc drive: 1x/48x cd/rw xa/form2 cdda tray
>| sr 1:0:1:0: Attached scsi generic sg2 type 5
>
>stripped config (well, as far of I'm sure it shouldn't matter):
>| CONFIG_PM=y
>| CONFIG_PM_LEGACY=y
>|
>| CONFIG_ACPI=y
>| CONFIG_ACPI_PROCFS=y
>| CONFIG_ACPI_FAN=y
>| CONFIG_ACPI_PROCESSOR=y
>| CONFIG_ACPI_THERMAL=y
>| CONFIG_ACPI_BLACKLIST_YEAR=0
>| CONFIG_ACPI_EC=y
>| CONFIG_ACPI_POWER=y
>| CONFIG_ACPI_SYSTEM=y
>| CONFIG_X86_PM_TIMER=y
>|
>| CONFIG_PCI=y
>| CONFIG_PCI_GOANY=y
>| CONFIG_PCI_BIOS=y
>| CONFIG_PCI_DIRECT=y
>| CONFIG_PCI_MMCONFIG=y
>| CONFIG_PCIEPORTBUS=y
>| CONFIG_PCIEAER=y
>| CONFIG_HT_IRQ=y
>| CONFIG_ISA_DMA_API=y
>|
>| CONFIG_PNP=y
>|
>| CONFIG_PNPACPI=y
>|
>| CONFIG_CDROM_PKTCDVD=y
>| CONFIG_CDROM_PKTCDVD_BUFFERS=8
>|
>| CONFIG_IDE=y
>|
>| CONFIG_RAID_ATTRS=y
>| CONFIG_SCSI=y
>| CONFIG_SCSI_PROC_FS=y
>|
>| CONFIG_BLK_DEV_SD=y
>| CONFIG_BLK_DEV_SR=y
>| CONFIG_CHR_DEV_SG=y
>|
>| CONFIG_SCSI_MULTI_LUN=y
>| CONFIG_SCSI_CONSTANTS=y
>| CONFIG_SCSI_LOGGING=y
>|
>| CONFIG_SCSI_SPI_ATTRS=y
>|
>| CONFIG_ATA=y
>| CONFIG_SATA_AHCI=y
>| CONFIG_ATA_PIIX=y
>| CONFIG_SATA_INTEL_COMBINED=y
>| CONFIG_SATA_ACPI=y
>| CONFIG_PATA_SERVERWORKS=y
>
>lspci:
>00:00.0 Host bridge: Intel Corporation 82845G/GL[Brookdale-G]/GE/PE DRAM
> Controller/Host-Hub Interface (rev 01) 00:01.0 PCI bridge: Intel
> Corporation 82845G/GL[Brookdale-G]/GE/PE Host-to-AGP Bridge (rev 01)
> 00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM
> (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01) 00:1d.1 USB
> Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI
> Controller #2 (rev 01) 00:1d.2 USB Controller: Intel Corporation
> 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01)
> 00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2
> EHCI Controller (rev 01) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI
> Bridge (rev 81)
>00:1f.0 ISA bridge: Intel Corporation 82801DB/DBL (ICH4/ICH4-L) LPC
> Interface Bridge (rev 01) 00:1f.1 IDE interface: Intel Corporation 82801DB
> (ICH4) IDE Controller (rev 01) 00:1f.3 SMBus: Intel Corporation
> 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 01) 00:1f.5
> Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM
> (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01) 01:00.0 VGA compatible
> controller: nVidia Corporation NV18 [GeForce4 MX 440 AGP 8x] (rev a2)
> 02:0c.0 Ethernet controller: Intel Corporation 82541PI Gigabit Ethernet
> Controller (rev 05)
>
>lspci -v -v -v for IDE
>00:1f.1 IDE interface: Intel Corporation 82801DB (ICH4) IDE Controller (rev
> 01) (prog-if 8a [Master SecP PriP]) Subsystem: Dell Unknown device 0142
>        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
> Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr-
> DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0
>        Interrupt: pin A routed to IRQ 17
>        Region 0: I/O ports at 01f0 [size=8]
>        Region 1: I/O ports at 03f4 [size=1]
>        Region 2: I/O ports at 0170 [size=8]
>        Region 3: I/O ports at 0374 [size=1]
>        Region 4: I/O ports at ffa0 [size=16]
>        Region 5: Memory at 50100000 (32-bit, non-prefetchable) [size=1K]



-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Remembering is for those who have forgotten.
		-- Chinese proverb
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