On Tue, Nov 04, 2008 at 08:13:34AM -1000, Al Plant wrote: > Julien Cigar wrote: >> I've this problem too on almost all my machines. The only solution I've >> found is to disable DMA (atapi_dma), but then performances are very poor >> (and I'm still unable to burn a CD/DVD) >> >> On Tue, 2008-11-04 at 16:03 +0100, Christoph Kukulies wrote: >>> Hi, >>> >>> don't know whether it's the CDROM drive (a Creative 52x mx) or the >>> motherboard (ASUS P4S8X) or what. >>> Anyway, I tried to install a recent version of FreeBSD (7.1-BETA2) >>> and the installation >>> hangs right in the boot process of the installation CD disc1. >>> >>> I see >>> >>> acd0: FAILURE - READ BIG MEDIUM ERROR asc=0x11 ascq=0x00 >>> run_interrupt_driven_hooks: still waiting after 60 seconds for xpt_config >>> run_interrupt_driven_hooks: still waiting after 120 seconds for xpt_config >>> run_interrupt_driven_hooks: still waiting after 180 seconds for xpt_config >>> >>> and so on. >>> >>> Any clues? >>> >>> -- >>> Christoph Kukulies >>> _______________________________________________ >>> email@example.com mailing list >>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >>> To unsubscribe, send any mail to "[EMAIL PROTECTED]" > ############ > > Aloha, > > I have had similiar happen on 7 and 8 Freebsd installs recently. > > If you install using safe mode it will work. Then in /boot/loader.conf > > #boot/loader.conf > hw.ata.ata-dma=0 > hw.ata.atapi_dma=0
There is no hw.ata.ata-dma tunable. I think you mean hw.ata.ata_dma (note: underscore, not hyphen). If you really are using hw.ata.ata-dma, it does nothing. :-) Also folks, please remember that "ATA DMA" is for hard disks, and "ATAPI DMA" is for ATAPI devices (CD/DVD drives). Error messages from xpt_* functions are from by the ATAPI-to-CAM emulation layer (think: SCSI emulation for ATAPI devices), but are likely signs of underlying compatibility problems between the CD/DVD drive and FreeBSD, and not the fault of atapicam(4). I'm not sure if there's a loader hint to disable xpt. > The error that comes up when you burn a CD seems to be bogus as I have > used the CD's with out error for installing on other boxes. The "READ BIG MEDIUM ERROR" often indicates that the CD/DVD drive does not support a specific read operation mode; some CD/DVD manufacturers don't implement this command for various reasons. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"