Date: Wed, 23 Jan 2002 13:00:34 -0800 (PST) From: Doug White <dwhite@resnet.uoregon.edu> To: Sergey Gershtein <sg@ur.ru> Cc: freebsd-stable@FreeBSD.ORG Subject: Re[2]: Strange lock-ups during backup over nfs after adding 1024M RAM Message-ID: <20020123125856.C56623-100000@resnet.uoregon.edu> In-Reply-To: <182699938898.20020123133249@ur.ru>
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On Wed, 23 Jan 2002, Sergey Gershtein wrote: > On Wednesday, January 23, 2002 you wrote: > DW> On Tue, 22 Jan 2002, Doug White wrote: > > DW> Try rebuilding your kernel with > DW> > DW> maxusers 256 > DW> > DW> You may need to scale up the tables in the system to handle the additional > DW> memory. > > It's already set to 512, is it too high? We did not rebuild the > kernel after adding memory, it worked fine with maxusers 512 and > 1024M RAM. Yes. You've scaled the tables so large that when you double the RAM, the page tables + maxusers 512 tables > KVM. Also, there are problems going from 1GB to 2GB on early 4.4-STABLE ... when did you build last? > maxusers 512 Drop this to 128, definitely. If you're doing a lot of network, monitor your mbuf usage and override that if necessary. Doug White | FreeBSD: The Power to Serve dwhite@resnet.uoregon.edu | www.FreeBSD.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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