This is just to inform you that the original disk corruption problem has been solved by changing the net board. The A7V266-E is now running with DMA turned on. Copying over the net is now possible without any disk corruption.
-- Bjarne On Mon, 2002-04-15 at 01:55, Damian G wrote: > > > > Jose M. Sanchez wrote: > > >Just to chime in on this subject... > > > > > >The AliMagic and VIA based motherboards have "broken" chipsets. > > > > > >I've spoken to both companies engineers about this issue. > > > > > >This discussion arose because both chipsets have problems with DMA > > >overlays when using the BT8xx type TV tuner cards... > > > > > >The problem is with clock timing (the famous broken clock timer chip!!!) > > >and DMA xfers. As you push the udma speed the spurious clock pulses > > >wreak havoc with the memory writes. > > > > > >The Windows drivers try to make the OS work around the problem... > > > > > >This may be why people are seeing corruption. Couple this with Civilme's > > >statement on WD drives and lack of CRC DMA data checking, and it's a > > >wonder that Linux even runs on these systems. > > > > > >Turning OFF DMA or reducing UDMA to 33 seems to help with this > > >problem... > > > > > >Your milage may vary though... > > > > > >-JMS > > > > Hi, > > > > Valuable input. I've got an Intel chipset but indeed a bttv tv tuner and > > a Firewire card from VIA technologies and suffer the same problems. > > > > Guy. > > just for the record. i've read Civileme's opinion abou WD drives. > he scared me a bit, since i installed linux on a 30 GB WD drive > and i can't afford to buy another.. so i just said "i'll use linux > in this one till it dies or something..." > > that was a year ago. i'm still on my WD drive. i have > > > /dev/hdb5 / ext3 defaults 1 1 > /dev/hdb2 /boot ext2 defaults 1 2 > none /dev/pts devpts mode=0620 0 0 > none /dev/shm tmpfs defaults 0 0 > /dev/hdb6 /home xfs defaults 1 2 > /mnt/cdrom /mnt/cdrom supermount > dev=/dev/scd0,fs=iso9660,ro,--,iocharset=iso8859-1 0 0 > /mnt/cdrom2 /mnt/cdrom2 supermount > dev=/dev/hdd,fs=iso9660,ro,--,iocharset=iso8859-1 0 0 > /mnt/floppy /mnt/floppy supermount > dev=/dev/fd0,fs=vfat,--,iocharset=iso8859-1,umask=0,sync,codepage=850 0 0 > /dev/hdb7 /mnt/win_d vfat iocharset=iso8859-1,umask=0,codepage=850 0 0 > /dev/hda1 /mnt/windows vfat iocharset=iso8859-1,umask=0,codepage=850 0 0 > /dev/hda5 /opt ext3 defaults 1 2 > none /proc proc defaults 0 0 > /dev/hdb8 swap swap defaults 0 0 > > > hdb being the mentioned WD drive. > > as you see, i use several filesystems. > > i've experienced power failures, hard freezes forcing > me to push the reset button. you know.. the usual. > > > and i'm still waiting for the day i get one single file corrupted..... > > ------------------------------------------------------- > > > ---- > > Want to buy your Pack or Services from MandrakeSoft? > Go to http://www.mandrakestore.com
Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com
