On the theory that an ATAPI CD/DVD drive is just an ATAPI CD/DVD drive, I tried replacing the one in my trusty old Blue&White G3.
The new one just plain doesn't work. Not even to playback CD audio tracks or tell the drive to eject. Here's some relevant dmesg and kern.log stuff: Memory BAT mapping: BAT2=256Mb, BAT3=256Mb, residual: 1024Mb Total memory = 1024MB; using 2048kB for hash table (at c0400000) Linux version 2.4.22-powerpc ([EMAIL PROTECTED]) (gcc version 3.3.2 (Debian)) #1 Sat Oct 25 16:59:03 EST 2003 Found a Paddington mac-io controller, rev: 0, mapped at 0xfdf80000 PowerMac motherboard: Blue&White G3 Found Grackle (MPC106) PCI host bridge at 0x80000000. Firmware bus number: 0->1 [...] Memory: 1030260k available (1848k kernel code, 1080k data, 172k init, 262144k highmem) [...] Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx CMD646: IDE controller at PCI slot 01:01.0 CMD646: chipset revision 7 CMD646: chipset revision 0x07, UltraDMA Capable CMD646: 100% native mode on irq 26 ide0: BM-DMA at 0x1080-0x1087, BIOS settings: hda:pio, hdb:pio ide1: BM-DMA at 0x1088-0x108f, BIOS settings: hdc:pio, hdd:pio ide2: Found Apple Heathrow ATA controller, bus ID 0 Probing IDE interface ide0... hda: QUANTUM FIREBALL CR6.4A, ATA DISK drive hdb: WDC WD1200JB-00DUA3, ATA DISK drive Unhandled interrupt 1a, disabled ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx blk: queue c02eebc0, I/O limit 4095Mb (mask 0xffffffff) blk: queue c02eed00, I/O limit 4095Mb (mask 0xffffffff) Probing IDE interface ide1... ide1: Wait for ready failed before probe ! Probing IDE interface ide2... hde: SAMSUNG CDRW/DVD SM-352B, ATAPI CD/DVD-ROM drive Unhandled interrupt d, disabled hde: Enabling MultiWord DMA 2 ide0 at 0x10c0-0x10c7,0x10b2 on irq 26 ide2 at 0xf2017000-0xf2017007,0xf2017160 on irq 13 hda: attached ide-disk driver. hda: 12594960 sectors (6449 MB) w/418KiB Cache, CHS=13328/15/63, UDMA(33) hdb: attached ide-disk driver. hdb: 234441648 sectors (120034 MB) w/8192KiB Cache, CHS=14593/255/63, UDMA(33) hde: attached ide-cdrom driver. Uniform CD-ROM driver Revision: 3.12 Partition check: [...] cdeject produces no kernel messages, but doesn't work. redwald:/home/branden# cdeject cdeject: ioctl cdromeject cdplay produces some output. redwald:/home/branden# cdplay nodisc (That's a lie, there's a CD-audio disc in there.) Things get more interesting when I try to get data off the drive: redwald:/home/branden# dd if=/dev/hde of=/dev/null bs=1024 count=1024 dd: reading `/dev/hde': Input/output error 0+0 records in 0+0 records out 0 bytes transferred in 0.007848 seconds (0 bytes/sec) And kern.log says: Oct 26 02:52:38 redwald kernel: hde: command error: status=0x51 { DriveReady SeekComplete Error } Oct 26 02:52:38 redwald kernel: hde: command error: error=0x54 Oct 26 02:52:38 redwald kernel: end_request: I/O error, dev 21:00 (hde), sector 0 Oct 26 02:52:38 redwald kernel: hde: command error: status=0x51 { DriveReady SeekComplete Error } Oct 26 02:52:38 redwald kernel: hde: command error: error=0x54 Oct 26 02:52:38 redwald kernel: end_request: I/O error, dev 21:00 (hde), sector 4 Also, earlier I got the following error, which turned up on this list in July, but the thread petered out. Oct 26 02:11:10 redwald kernel: hde: timeout waiting ^I^I^Ifor dbdma command stop Oct 26 02:11:10 redwald kernel: hde: bad status at DMA end, dstat=8480 Oct 26 02:11:10 redwald kernel: hde: DMA disabled Oct 26 02:11:10 redwald kernel: hde: command error: status=0x51 { DriveReady SeekComplete Error } Oct 26 02:11:10 redwald kernel: hde: command error: error=0x54 Oct 26 02:11:10 redwald kernel: end_request: I/O error, dev 21:00 (hde), sector 0 Oct 26 02:11:10 redwald kernel: hde: command error: status=0x51 { DriveReady SeekComplete Error } Oct 26 02:11:10 redwald kernel: hde: command error: error=0x54 Oct 26 02:11:10 redwald kernel: end_request: I/O error, dev 21:00 (hde), sector 4 Unfortunately I don't remember what I did to cause the above. I'm willing to patch my kernel to get better diagnostics or test fixes. Can anyone help? -- G. Branden Robinson | Debian GNU/Linux | kernel panic -- causal failure [EMAIL PROTECTED] | universe will now reboot http://people.debian.org/~branden/ |
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