Date: Mon, 20 Aug 2001 21:21:38 +0200 (CEST) From: Søren Schmidt <sos@freebsd.dk> To: Jon Noack <noackjr@compgeek.com> Cc: freebsd-smp@FreeBSD.ORG Subject: Re: Bye bye dear SMP-system Message-ID: <200108201921.f7KJLcA87034@freebsd.dk> In-Reply-To: <20010820161825.1908.cpmta@c017.sfo.cp.net> "from Jon Noack at Aug 20, 2001 09:18:25 am"
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It seems Jon Noack wrote: > I have 2 machines running dual Celeron 500s on BP6s. The only problems > I have come across have had to do with the HPT366 controller. I use IBM > 75GXP hard drives in the machines and enabled tagged queuing (using the > 'hw.ata.tags="1"' line in /boot/loader.conf). Under heavy reads (but not > heavy writes - weird), the kernel would post an "ad0: READ command timeout > <snip> resetting" error followed by an "ad0: invalidating queued requests" > error. That was shortly followed by a hard lock. I tried 'hw.ata.wc="1"' > instead and have had no problems (except if and when the UPS dies). I > could reproduce the error by cvsuping my source tree to RELENG_4_3. The > first time was fine, as there was some writing because several items were > being updated (from 4.3-release). Later attempts (which were almost > solely reads) always resulted in a hard lock. The HPT366 has HW issues with some of the fast disk, I havn't been able to find a solution to that, nor has HPT as far as I'm informed.. -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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