Re: Alan Cox quote? (was: Re: accounting for threads)

From: Rusty Russell (rusty@rustcorp.com.au)
Date: Wed Jun 20 2001 - 23:11:17 EST


In message <Pine.GSO.4.21.0106201429150.26389-100000@weyl.math.psu.edu> you wri
te:
> In practice it's a BS. There is a lot of ways minor modifications of code
> could add a preemption point, so if you rely on the lack of such - expect
> major PITA.
>
> Yes, in theory SMP adds some extra fun. Practically, almost every "SMP"
> race found so far did not require SMP.

Disagree. A significant percentage of the netfilter bugs have been
SMP only (the whole thing is non-reentrant on UP).

Depends what part of the kernel you play in,
Rusty.

--
Premature optmztion is rt of all evl. --DK
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