Date: Thu, 14 Aug 2003 15:31:29 -0500 (CDT) From: Mike Silbersack <silby@silby.com> To: John Baldwin <jhb@FreeBSD.org> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: RE: TCP socket shutdown race condition Message-ID: <20030814153022.U39444@odysseus.silby.com> In-Reply-To: <XFMail.20030814104200.jhb@FreeBSD.org>
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On Thu, 14 Aug 2003, John Baldwin wrote: > In that case, CPU 2 uses an IPI to "push" the interrupt over to CPU 1 > since CPU 1 is in the kernel. CPU 2 will not handle an interrupt unless > it can get the giant lock. > > -- > > John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ So on 4.x, any SMP race is probably also a UP race, but we just don't see it because UP can't preempt. Well, I guess the spl() fix is probably going to be the quickest here then, please send it to me once you've pounded on it, Ed. Mike "Silby" Silbersackhome | help
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