Hi Roberto, > Dear Mark, > > I was able to work on my DMA using the article: > http://www.linuxdevcenter.com/pub/a/linux/2000/06/29/hdparm.html Thanks for the link I'll check it out... > What do you meean with the incorrect syncronization onf an SMP system > and how could I fix this? > Could you please suggest some changes? No clue, that was part of the error message I got - I did not write that :) I still am not sure if this is really a driver problem... It seems to me like my standard Dell box (about 2-3 years old) is really nothing special, so the drivers should be pretty main-stream... But maybe I'm wrong... I am also still not sure if this is really a problem or not... MARK > > Roberto > > Roberto > > Mark wrote: > > >I got the following problem after my FC3 install: > > > >Losing too many ticks! > >TSC cannot be used as a timesource. > >Possible reasons for this are: > > You're running with Speedstep, > > You don't have DMA enabled for your hard disk (see hdparm), > > Incorrect TSC synchronization on an SMP system (see > dmesg). Falling > >back to a sane timesource now. > > > > > >I have ide=nodma in the boot parameters, since I was not able to > >complete the install with that parameter. If I try to take this > >parameter out of the grub.conf, I get the below and the machine does > >not boot: > > > >hdc: cdrom_pc_intr: The drive appears confused (ireason 0x02) > >ide-cd: cmd 0x1e timed out > >hdc: lost interupt > > > >I also tried "ide0=dma ide1=nodma" with the same problem (CDROMs are > >hdc and hdd on ide1) Then I tried "ide=nodma ide0=dma". It > boots, but I > >dont know if it fixes the original problem... > > > > > >Should I leave "ide=nodma" in and live with the first > warning? Is this > >just a warning that can be ignored or is there something that could > >actually go wrong if I use this as a production server? > > > >I am surprised about this whole "ide=nodma" thing anyway. It > seems that > >the only way to get Fedora installed on any of my machines is to use > >"ide=nodma"as boot params. Sometimes I even seem to need > "allowcddma". > >My machines are by no means special, just standard IDE > controllers with > >a bunch of IDE HDs and IDE cdrom... What is the best > practise for this > >case? > > > > > >Thanks, > > > >MARK > > > > > > > > > > -- > Roberto R. Heredia, Ph.D > Associate Professor of Psychology > Department of Behavioral, Applied Sciences & Criminal Justice > Texas A&M International University > 5201 University Boulevard > Laredo, Texas 78041-1900 > > Cognitive Science Laboratory: BH 224 > Phone: (956)326-2637 > Facsimile: (956)326-2474 > mailto:rheredia@xxxxxxxxx > http://www.tamiu.edu/~rheredia <http://www.tamiu.edu/%7Erheredia> >
