Messages in this thread | | | Date | Wed, 27 Jan 1999 19:06:57 +0200 | From | Petri Mattila <> | Subject | Re: Linux-2.2.0 bad VM behaviour "dd if=/dev/zero of=/dev/hdc bs=256k" |
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> I guess there is something wrong with the 2.2.0 vm... when I try this: > > dd if=/dev/zero of=/dev/hdc bs=256k > > the system becomes very lazy...
I guess I found something: this unfortunate behaviour disappears if I turn off IDE DMA mode. With PIO modes there is hardly any swapping.
So the conclusion is the bug may be in DMA memory handling ?
Thanks,
Petri
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