9fans archive / 1997 / 04 / 68 /    prev next

From: Milon Papezik papezik@dcs...
Subject: porting linux programs and drivers to plan9
Date: Mon, 21 Apr 1997 16:53:08 +0200 (MET DST)

> presotto@pla... writes:
> 
> > [a fascinating account of how the Pentium Pro's out-of-order
> > instruction execution breaks the Plan 9 sleep/wakeup code on
> > a multi-CPU system]
> 
> It appears that the slightly different version of sleep/wakeup
> given in the Volume 2 paper `Process Sleep and Wakeup on a
> Shared-memory Multiprocessor' should be immune to the effects
> of weak memory coherency, because the shared variables are
> referenced only inside a lock/unlock pair.  Is this right?

Which paper do you mean? Any pointers would be appreciated...

	Thanks in advance!
	Milon
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Milon Papezik, Technical University of Brno, Dept. of Computer Science