Date: Thu, 6 Jan 2005 19:12:53 -0500 From: M <m@obmail.net> To: Robert Watson <rwatson@freebsd.org> Cc: freebsd-smp@freebsd.org Subject: Re: Dual Xeon 2.8 with HT - How is the support in FreeBSD 5.3 Message-ID: <E00A1146-6040-11D9-B88F-00039367611E@obmail.net> In-Reply-To: <Pine.NEB.3.96L.1050106231325.4939A-100000@fledge.watson.org> References: <Pine.NEB.3.96L.1050106231325.4939A-100000@fledge.watson.org>
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On Jan 6, 2005, at 6:14 PM, Robert Watson wrote: > On Thu, 6 Jan 2005, M wrote: > >> The only issue I've had on any of them is a highly loaded NFS server >> which has crashed, but > > If you have any further debugging information on the NFS crash, I'd be > happy to take a look. It could well have been fixed by the recent > RELENG_5_3 NFS fix, which has been in RELENG_5 for a month or two. > Robert, This morning I applied p3 and it's running, we'll see how long it goes. I turned the access_cache_timeout on the 10 client systems down to 0. I'm pushing about 35 Mbit/sec of traffic both ways at the moment. At this point the clients are generating nfs server not responding/nfs server is alive again messages every few minutes so if p3 doesn't fix the issue I should see something. (I don't think the error isn't coming from the disks. The FC disk array has plenty of spare capacity as measured through gstat's %busy, mostly from having 4 GB of memory, most of it Inactive). Unfortunately the crashes produce no output at all, just hard hang. If it continues I'm going to turn off SMP and go single processor. I understand that may help get some useful output from a system crash. Do you have any thoughts on hyperthreading on a system that's used only as an NFS server? Thanks
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