Date: Tue, 23 Jan 2001 11:51:41 -0800 (PST) From: John Baldwin <jhb@FreeBSD.ORG> To: Bosko Milekic <bmilekic@dsuper.net> Cc: Bruce Evans <bde@zeta.org.au>, arch@FreeBSD.ORG, Dag-Erling Smorgrav <des@ofug.org>, Alfred Perlstein <bright@wintelcom.net> Subject: Re: Second zone allocator patch Message-ID: <XFMail.010123115141.jhb@FreeBSD.org> In-Reply-To: <B0000463571@www.marianopolis.edu>
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On 23-Jan-01 Bosko Milekic wrote: >> hardware interrupt handler blocking and stalling other interrups, Jake > and I >> have toyed with the notion of creating a new kthread to run the other > handlers >> when an ithread blocks on a mutex, so that the other handlers wouldn't be >> broken. For hardware interrupts, this would require a refcount on the > intrhand >> "interrupt source" so that the interrupt can be re-enabled when the > refcount >> hits 0. However, this is only in conceptual stage right now, and as an >> optimizaation, is a bit down the priority list. > > Icky. I would have thought that there would have been an alternative way > to solving this. But let's wait until we're ready. No more icky than light weight ithread switches. Much less, in fact. -- John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.Baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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