Date: Wed, 26 Dec 2001 16:57:25 +0000 From: Thomas Hurst <tom.hurst@clara.net> To: arch@freebsd.org Subject: Re: 64 bit counters Message-ID: <20011226165725.GA96426@voi.aagh.net> In-Reply-To: <Pine.BSF.4.41.0112261654060.20665-100000@prg.traveller.cz> References: <20011226005810.5475.qmail@web10102.mail.yahoo.com> <Pine.BSF.4.41.0112261654060.20665-100000@prg.traveller.cz>
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* Michal Mertl (mime@traveller.cz) wrote: > > then likely all is well. If an interrupt routine can read or write > > in the middle of a non-atomic operation, then all hell can break > > loose, in ways that are extremely difficult to track down because > > they only happen rarely. > > Well I didn't think of that but I believe it shouldn't be that much a > problem. At most the counter could become wrong :-). When they're overflowing every few days they're wrong anyway. At least if the counter shoots up to 1000TB you *know* it's wrong. -- Thomas 'Freaky' Hurst - freaky@aagh.net - http://www.aagh.net/ - Support wildlife -- vote for an orgy. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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