[Bug 91760] Problems with DMA on cdrom

[Mário Vrablanský]

Public bug reported:

Binary package hint: linux-image-generic

Hi

I have problem with DMA with cdrom on my laptop

mario at notebook:~/Documents$ sudo hdparm -i /dev/hdb

/dev/hdb:

 Model=HL-DT-ST DVD-RW GWA-4082N, FwRev=CC15, SerialNo=C08CF60C570D
 Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
 RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=unknown, BuffSize=0kB, MaxMultSect=0
 (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4 
 DMA modes:  mdma0 mdma1 *mdma2 
 AdvancedPM=no
 Drive conforms to: ATA/ATAPI-5 T13 1321D revision 3:  ATA/ATAPI-2 ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5

It uses multi word dma instead of ultra dma

If i want change it by hand to uldra dma 66

mario at notebook:~/Documents$ sudo hdparm -X66 /dev/hdb

/dev/hdb:
 setting xfermode to 66 (UltraDMA mode2)
 HDIO_DRIVE_CMD(setxfermode) failed: Input/output error


mario at notebook:~/Documents$ tail -f /var/log/messages
Mar 12 22:02:16 notebook -- MARK --
Mar 12 22:07:46 notebook kernel: [ 1553.964000] hdb: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
Mar 12 22:07:46 notebook kernel: [ 1553.964000] hdb: drive_cmd: error=0x04 { AbortedCommand }
Mar 12 22:07:46 notebook kernel: [ 1553.964000] ide: failed opcode was: 0xef
Mar 12 22:10:52 notebook kernel: [ 1740.016000] hdb: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
Mar 12 22:10:52 notebook kernel: [ 1740.016000] hdb: drive_cmd: error=0x04 { AbortedCommand }
Mar 12 22:10:52 notebook kernel: [ 1740.016000] ide: failed opcode was: 0xef
Mar 12 22:16:09 notebook kernel: [ 2057.416000] hdb: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
Mar 12 22:16:09 notebook kernel: [ 2057.416000] hdb: drive_cmd: error=0x04 { AbortedCommand }
Mar 12 22:16:09 notebook kernel: [ 2057.416000] ide: failed opcode was: 0xef

mario at notebook:~/Documents$ date
Mon Mar 12 22:16:27 CET 2007

mario at notebook:~/Documents$ uname -a
Linux notebook 2.6.20-10-generic #2 SMP Mon Mar 12 00:02:49 UTC 2007 i686 GNU/Linux


If i burn cd or creating iso via dd command my desktop is very slow and has very slow responses .

Please let me know if some others informations are needed .Thanks

** Affects: linux-meta (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

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Problems with DMA on cdrom
https://launchpad.net/bugs/91760