Re: DMA blues...System lockup on setting DMA mode using hdparam

From: Vojtech Pavlik (
Date: Sat Feb 24 2001 - 04:21:19 EST

On Fri, Feb 23, 2001 at 12:48:29PM -0800, Jasmeet Sidhu wrote:

> Also, when I try and use the -k and the -K switches (keep settings after
> reset), the programs says that it worked. However, after I restart the
> system, these "flags" are set to 0 again. Is this normal? In other words:
> hdparam -k /dev/hda
> keepsettings = 0 (off)
> # now lets set the -k option (keep settings after refresh).
> hdparam -k1 /dev/hda
> setting keep_settings to 1 (on)
> keepsettings = 1 (on)
> # noe lets restart the system and query again
> hdparam -k /dev/hda
> keepsettings = 0 (off)
> Is this normal?

This only relates to a ide bus reset in case of a failure, not system reset.

Vojtech Pavlik
SuSE Labs
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