On Sun, 2003-09-28 at 16:42, Pigeon wrote: > > I've tried running it with cdrecord.mmap suid root and as root but it's > > still just as slow. Could it be related to me not being able to set dma > > on any of my drives? How does that affect scsi emulated drives? > > (I'm CCing you, since you CCed me...) > > Since your original post there have been a couple of others that have > elucidated that the latest cdrecord has a bug which causes it to throw > out an error message when trying to _reduce_ its privileges (such as > in your posted output). In the past these error messages have been a > good indication that the cdrecord binary isn't running as root, which > seems to have thrown me off track. > > Not being able to set DMA might well be connected. SCSI-emulated > drives are still on the IDE bus as far as the hardware is concerned, > so they are affected by IDE DMA settings. Also, if the hard drive is > not using DMA, it will be a slow business getting the data to send to > the CD-RW in the furst place. Do you have DMA enabled in your kernel? > My kernel config (2.4.21) has: >
> CONFIG_BLK_DEV_IDEDMA_PCI=y > CONFIG_IDEDMA_PCI_AUTO=y > CONFIG_BLK_DEV_IDEDMA=y > CONFIG_IDEDMA_AUTO=y > > What output do you get when you try to set DMA? 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 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) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
