Damian G wrote: >El Dom 14 Abr 2002 06:11, Guy Zelck escribi�: > >>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 "tha heck with it, >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. > What distro version is this? You probably do not have anything from VIA or posess a TV tuner card.
> > >and i'm still waiting for the day i get one single file corrupted..... > Lucky bastard ;-) . Guy.
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