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Re: %u-order allocation failed

To: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Subject: Re: %u-order allocation failed
From: Mikulas Patocka <mikulas@xxxxxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 9 Oct 2001 01:46:52 +0200 (CEST)
Cc: torvalds@xxxxxxxxxxxxx, Rik van Riel <riel@xxxxxxxxxxxxxxxx>, Alex Bligh - linux-kernel <linux-kernel@xxxxxxxxxxx>, Krzysztof Rusocki <kszysiu@xxxxxxxxxxxxxxxxx>, linux-xfs@xxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <E15qk40-0002Jf-00@the-village.bc.nu>
Sender: owner-linux-xfs@xxxxxxxxxxx
On Tue, 9 Oct 2001, Alan Cox wrote:

> > Linus, what do you think: is it OK if fork randomly fails with very small
> > probability or not?
> 
> Your code doesnt change that behaviour. Not one iota. Do the mathematics,
> work out the failure probabilities for page pairs. Now remember that the
> vmalloc one has guard pages too.
> 
> You are trying to solve a non problem with a non solution

I asked Linus, not you :-/

It's up to him, if he wants "stability-based-on-probability" algorithms in
Linux or not.

Mikulas


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