Re: Slow writer...

From: DervishD (
Date: Wed Jul 02 2003 - 09:12:04 EST

    Hi Jens, and thanks a lot for answering :)

 * Jens Axboe <> dixit:
> - Is the cd writer on a different channel?

    Yes, the hard disk is primary master, the writer secondary

> - What ide adapter are you using?

    The VP_IDE, with a VIA 82c686b chipset.

> - Is dma enabled on the cd writer?

    Yes, if I use the IDE-CD driver, hdparm reports that the writer
is UDMA2 capable


 Model=PLEXTOR CD-R PREMIUM, FwRev=1.00, SerialNo=013347
 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:180,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes: pio0 pio1 pio2 pio3 pio4
 DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 *udma2

> - What cdrecord version are you using?

    2.00. Latest is 2.00.3, although I don't know if it is stable,
I've seen it this morning.
> You should try 2.5.73 as well and see if it makes any difference. Make
> sure to use -dev=/dev/hdc (or whatever your cd-rw drive is) and _don't_
> use ide-scsi (just ide-cd)

    Currently I have a DIY linux box, and I'm not sure if I can test
a 2.5 kernel without updating lots of software. I've tested with
2.4.18 (which AFAIK has another IDE driver) and the same happens. I
think that maybe the motherboard is damaged :((

    I'll try the newer cdrecord (if it is stable) and, if that
doesn't work, I may consider testing 2.5

    Thanks for your answer :)

    Raúl Núñez de Arenas Coronado

Linux Registered User 88736 &
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