Recently I bought a NEC ND-4551A CD/DVD writer. It works OK with one
exception. When I have a packet device associated with the drive, there
are problems with ejecting discs.
Here is an example:
1. Insert a CD-R/DVD/CD-RW (whatever)
2. mount /media/cdrom0
3. umount /media/cdrom0
Now the eject button doesn't work, when I issue the eject command I get:
hda: irq timeout: status=0xd0 { Busy }
ide: failed opcode was: unknown
hda: DMA disabled
hda: ATAPI reset complete
After few seconds eject ends with no result. Second eject command works.
There are no problems without the packet device association (turned
off/on with pktsetup using /etc/init.d/udftools).
My system if Ubuntu 5.10
The kernel is:
Linux amd 2.6.15-mm3 #1 PREEMPT Sun Jan 15 12:31:14 CET 2006 i686
GNU/Linux
But it works the same way with 2.6.15.
Part of my dmesg related to IDE:
VP_IDE: IDE controller at PCI slot 0000:00:11.1
ACPI: PCI Interrupt 0000:00:11.1[A] -> Link [LNKA] -> GSI 10 (level, low)
-> IRQ 10
PCI: Via IRQ fixup for 0000:00:11.1, from 255 to 10
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt8233a (rev 00) IDE UDMA133 controller on pci0000:00:11.1
ide0: BM-DMA at 0xdc00-0xdc07, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xdc08-0xdc0f, BIOS settings: hdc:pio, hdd:pio
Probing IDE interface ide0...
hda: _NEC DVD_RW ND-4551A, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: ATAPI 48X DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
Probing IDE interface ide1...
Probing IDE interface ide1...
--
Damian Pietras
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