Date: Tue, 17 Jan 2006 14:17:37 -0600 From: Michael Barnett <mbarnett@measuremap.com> To: freebsd-questions@freebsd.org Subject: Re: PAE causing system crashes Message-ID: <09FE5498-82E3-495C-9593-8F1CFF3A3BD6@measuremap.com> In-Reply-To: <47A794C0-FE22-46FC-9D81-BCF3359CBD61@measuremap.com> References: <47A794C0-FE22-46FC-9D81-BCF3359CBD61@measuremap.com>
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To ammend this slightly.. When running the PAE kernel, they will stay online indefinitely under little to no load. It is only when i want them to actually work will they freak out and reboot. -m On Jan 17, 2006, at 1:47 PM, Michael Barnett wrote: > I have 3 dell machines with 2x xeon procs, 8G of ram, and a half > terabyte raid 5. I attempted to run the AMD64 distribution on > these boxes which was fine for everything except mysql, (which is > all these boxes are going to do) so I reinstalled 5.4 i386. > > uname -a looks like (hostname obscured): > > FreeBSD myhost.mydomain.com 5.4-RELEASE-p9 FreeBSD 5.4-RELEASE-p9 > #2: Mon Jan 16 23:27:12 PST 2006 root@myhost.mydomain.com:/usr/ > obj/usr/src/sys/SMP-PAE i386 > > > My problem is, if i don't enable PAE in the kernel, i can only > address half the ram in the boxes, but... the machines are stable. > > If i do enable PAE, i can address all the memory, but they randomly > reboot without dumping any errors or logging. > > To enable PAE, i am building and booting off the following kernel > config: > > <snip> > include PAE > > ident SMP-PAE > > options SMP > options KVA_PAGES=512 > </snip> > > I added the KVA_PAGES options hoping to stabilize the machine > (doesn't seem to have made any difference.) The only other tuning > i am doing at the moment is in loader.conf: > > <snip> > kern.maxdsiz="2147483648" # Set the max data size > </snip> > > When i boot without PAE I use the generic SMP kernel, and the > machine is stable. > > I know that there are a number of other kernel tunables i could be > tweaking, but I am not really sure where to start as the machine > dies silently. I was hoping that someone who has run a stable PAE > kernel with 8G of ram + could point me in the right direction. > > Thanks, > > -Michael > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions- > unsubscribe@freebsd.org"
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