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Re: Very slow CD burning



On Mon, Sep 29, 2003 at 05:16:10PM +0100, Dan Bowtell wrote:
> > > I didn't mean to CC you, i just hit reply assuming it would go to the
> > > list but it went t you instead. My DMA settings in the kernel are:
> > > 
> > > CONFIG_BLK_DEV_IDEDMA_PCI=y
> > > # CONFIG_BLK_DEV_IDEDMA_FORCED is not set
> > > CONFIG_IDEDMA_PCI_AUTO=y
> > > # CONFIG_IDEDMA_ONLYDISK is not set
> > > CONFIG_BLK_DEV_IDEDMA=y
> > > # CONFIG_IDEDMA_PCI_WIP is not set
> > > # CONFIG_BLK_DEV_ADMA100 is not set
> > > # CONFIG_HPT34X_AUTODMA is not set
> > > CONFIG_IDEDMA_AUTO=y
> > > # CONFIG_IDEDMA_IVB is not set
> > > # CONFIG_DMA_NONPCI is not set
> > > # CONFIG_SCSI_EATA_DMA is not set
> > 
> > Looks good to me...
> > 
> > > When i try and set DMA i get the following error:
> > > 
> > > /dev/hdc:
> > >  setting using_dma to 1 (on)
> > >  HDIO_SET_DMA failed: Operation not permitted
> > >  using_dma    =  0 (off)
> > 
> > ...but perhaps you don't have support for your motherboard chipset
> > enabled? The game here is to translate the numbers you get from lspci
> > into the appropriate CONFIG_BLK_DEV options using the kernel docs,
> > menuconfig help screens, Google and the like. If you fail in this
> > endeavour post your lspci output.
> 
> lspci gives me the following information:
> 
> 00:07.1 IDE interface: VIA Technologies, Inc. VT82C586/B/686A/B PIPC Bus
> Master IDE (rev 06)
> 
> Based on that I enabled CONFIG_BLK_DEV_VIA82CXXX=y. 

Looks good to me.

> I also had DMA
> turned off in the bios which I've enabled now. dmesg shows the following
> error:
> 
> scsi : aborting command due to timeout : pid 1204, scsi0, channel 0, id
> 0, lun 0 Write (10) 00 00 00 10 78 00 00 1f 00
> hdd: lost interrupt
> ide-scsi: scatter gather table too small, padding with zeros
> scsi : aborting command due to timeout : pid 1208, scsi0, channel 0, id
> 0, lun 0 Write (10) 00 00 00 10 f4 00 00 1f 00
> hdd: lost interrupt
> ide-scsi: scatter gather table too small, padding with zeros
> spurious 8259A interrupt: IRQ7.
> scsi : aborting command due to timeout : pid 1383, scsi0, channel 0, id
> 0, lun 0 Write (10) 00 00 00 24 ef 00 00 1f 00
> hdd: lost interrupt
> ide-scsi: scatter gather table too small, padding with zeros

Far out, I've never come across this. I'm shooting in the dark a bit
here:

- Did you enable CONFIG_IDEPCI_SHARE_IRQ ?
- Does it work if you unplug the DVD-ROM?

In case it helps, I've attached my kernel config - I also have a VIA
82CXXX chipset.

-- 
Pigeon

Be kind to pigeons
Get my GPG key here: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x21C61F7F

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