Hi, On Sun, 17 Oct 2004 03:51:36 +0100 (BST), James Stevenson <james@xxxxxxxx> wrote: > > Hi, > > i did actually kind of get the card's working together but ran into > another problem. > > when i boot with ide=nodma and then turn on dma manually on all the other > cards / board chipset etc... they all function fine > > then i can only turn the dma up to ATA/100 if i set it to ata/133 it will > cause the errors. I assume this is something todo with the promise bois > not setting up the 3rd card at boot time. It only shows drive listing for > 2 of the 3 cards. There were very similar problems reported in the past and they were fixed by replacing power supply with a better one. Also you shouldn't need to use "ide=nodma" and play with hdparm, driver should tune the best mode available. If this doesn't work then something needs fixing. You can find out if BIOS/driver configures cards correctly by comparing PCI config space (lspci -xxx) for working/non-working controller. > Unfortunatly this generated another problem. > When read from both drives at the same time it functions normally and > see resonable performance. When i attempt to write to both drives it will > cause the machine to lockup. > > James > > > > On Thu, 14 Oct 2004, Bartlomiej Zolnierkiewicz wrote: > > > On Thu, 14 Oct 2004 13:12:42 -0500, Ian Pilcher <i.pilcher@xxxxxxxxxxx> wrote: > > > James Stevenson wrote: > > > > > > > > i seem to have run into an annoying problem with a machine which has > > > > 3 promise ata/133 card the PDC20269 type. > > > > > > > > > > .... > > > > > > > > > > > Does anyone have an explenation of why this can happen ? > > > > * check power supply > > * compare PCI config space of the "failing" controller to the one which > > is "working" (assuming that identical devices are connected to each), > > maybe firmware/driver forgets to setup some settings > > > > > Promise cards don't support more than two per machine. If you can get a > > > third card to work in PIO mode, consider it an added (but unsupported) > > > bonus. > > > > AFAIR people have been running 4-5 cards just fine > > - > > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > Please read the FAQ at http://www.tux.org/lkml/ > > > > -- > -------------------------- > Mobile: +44 07779080838 > http://www.stev.org > 3:40am up 12:22, 1 user, load average: 0.00, 0.00, 0.00 > > -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
