On Thu, Sep 30, 2004 at 07:54:31PM -0600, Scott Long wrote: > Tristan wrote: > >On Fri, 1 Oct 2004 03:28:38 +0200 > >Marius Strobl <marius_at_alchemy.franken.de> wrote: > >>On Thu, Sep 30, 2004 at 08:52:27PM -0400, Ken Smith wrote: > >>>On Fri, Oct 01, 2004 at 09:35:15AM +0930, Tristan wrote: > >>>>FreeBSD 6.0-CURRENT with GENERIC kernel built 27th Sep. > >>>>On a SunBlade 100 I see these messages regularly when > >>>>dma is enabled. The messages go away when I either use > >>>>atacontrol to set the mode to PIO4 or set hw.ata.ata_dma to 0 > >>>>I do get data corruption on the disk if left in DMA mode. > >>> > >>>Just FYI my primary test machine is a SunBlade 100, it seems to > >>>be doing OK with a kernel built from this morning's source. I've > >>>been doing most of my builds from an NFS server though, I'll do > >>>a check with a full buildworld which will use the local drive more. > >>> > >>>>ad0: 14594MB <ST315310A/3.28> [29651/16/63] at ata2-master UDMA66 > >>>>acd0: CDRW <LTN486S/YSU1> at ata2-slave PIO4 > >>>>ata3-master: DMA limited to UDMA33, non-ATA66 cable or device > >>>>ad1: 39266MB <IBM-DTLA-305040/TW4OA60A> [79780/16/63] at ata3-master > >>>>UDMA33 > >>>>Mounted root from ufs:/dev/ad0a. > > Detaching the CDROM would be an easy first test. The CDROM is likely > wanting to use WDMA mode which itself can be problematic (and is why > FreeBSD turns it off by default). Just for reference, this is pieces from a machine I've got here that doesn't *seem* to be having problems: FreeBSD 6.0-CURRENT #0: Thu Sep 30 09:54:31 EDT 2004 kensmith_at_s-dallas.cse.buffalo.edu:/home/csestaff/kensmith/Projects/timecounter/HEAD/sys/sparc64/compile/GENERIC atapci0: <AcerLabs Aladdin UDMA66 controller> port 0xa20-0xa2f,0xa08-0xa0b,0xa10-0xa17,0xa18-0xa1b,0xa00-0xa07 at device 13.0 on pci0 ata2: channel #0 on atapci0 ata3: channel #1 on atapci0 pcib1: <OFW PCI-PCI bridge> at device 5.0 on pci0 pci1: <OFW PCI bus> on pcib1 pci0: <display, VGA> at device 19.0 (no driver attached) Timecounters tick every 10.000 msec ad0: 19092MB <ST320011A/3.10> [38792/16/63] at ata2-master UDMA66 acd0: CDRW <LTN486S/Y3S2> at ata2-slave UDMA33 Mounted root from ufs:/dev/ad0a. -- Ken Smith - From there to here, from here to | kensmith_at_cse.buffalo.edu there, funny things are everywhere. | - Theodore Geisel |Received on Fri Oct 01 2004 - 00:58:59 UTC
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