I got no replies at all so let's try this again...
----- Original Message -----
From: Peter Kiem <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, November 11, 2000 11:42 PM
Subject: hdparm problems
> I've sucessfully used hdparm on 3 machines but on the next 2 struck some
> SERIOUS problems.
>
> Every time I have tried "hdparm -m16 -c3 /dev/hda" with them the system
has
> worked perfectly and I get about double the I/O speed. On reboot however
> the ext2 filesystem group descriptors corrupt and trash the / partition.
> Screws up so bad the system is toast and has to be rebuilt.
>
>
> The only thing I can see different about these machines are:
>
> 1) I think both are Cyrix processors, I know my workstations definately
is.
>
> 2) For some reason the kernel is reporting the following about the drives:
> Nov 4 13:59:09 raistlin kernel: PCI_IDE: unknown IDE controller on PCI
bus
> 00 device 58, VID=10b9, DID=5229
> Nov 4 13:59:09 raistlin kernel: PCI_IDE: not 100% native mode: will probe
> irqs later
> Nov 4 13:59:09 raistlin kernel: PCI_IDE: simplex device: DMA disabled
> Nov 4 13:59:09 raistlin kernel: ide0: PCI_IDE Bus-Master DMA disabled
> (BIOS)
> Nov 4 13:59:09 raistlin kernel: PCI_IDE: simplex device: DMA disabled
> Nov 4 13:59:09 raistlin kernel: ide1: PCI_IDE Bus-Master DMA disabled
> (BIOS)
>
> A few lines later it displays the IRQs for the drives.
>
>
> Now it cannot be the drives as this machine above has the exact same
drives
> as another machine which DOES work.
>
> In the other machine (my workstation) the drive is less than 6 months old
> although the machine is older than that. When I boot into Windows 98SE
and
> check the drives, Windows98 has managed to turn on DMA so why cannot Linux
> do the same?
>
> Any ideas?
>
> Regards,
> +-----------------------+---------------------------------+
> | Peter Kiem | E-Mail : <[EMAIL PROTECTED]> |
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