Date: Thu, 6 Nov 1997 11:02:36 -0700 (MST) From: Marc Slemko <marcs@znep.com> To: SrA Scott Gregory <gregory@afpubs.hq.af.mil> Cc: freebsd-questions@freebsd.org Subject: RE: Need Help Determining Why My System Keeps Crashing Message-ID: <Pine.BSF.3.95.971106105943.27975A-100000@alive.znep.com> In-Reply-To: <Pine.BSF.3.96.971106123839.19924A-100000@afpubs.hq.af.mil>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, 6 Nov 1997, SrA Scott Gregory wrote: > > [Gregory, Scott, SrA, SAF/AADXT] > > I haven't kept a log, but it was about every two weeks. Does anything use > mbufs besides the network? > > The docs mention that the most important function of the maxusers is to set > the maximum number of processes that can run. I set it to 30 since I didn't > see this system running more than 500 simultaneous processes. What other > system tables (that I would use heavily as a web server) does this effect and > what would you suggest as a fix? That is the most important one, but it impacts a number of things. grep the source for "maxusers" and "MAXUSERS". > > Here is the output of netstat -m: > > netstat -m > > 2691 mbufs in use: > 2279 mbufs allocated to data > 405 mbufs allocated to packet headers > 6 mbufs allocated to protocol control blocks > 1 mbufs allocated to socket names and addresses > 2219/2302 mbuf clusters in use ^^^^ you have less than 100 mbuf clusters left. You need more. > 4940 Kbytes allocated to network (96% in use) > 0 requests for memory denied > 0 requests for memory delayed > 0 calls to protocol drain routines > > I ran netstat -m a few times and got utilization anywhere from 64% to 97%. > Obviously I'm running VERY low in resources. What would you do? Set > maxusers high? And/or set NMBCLUSTERS? (where do you set the NMBCLUSTERS, > kernel option?) In the kernel config file. See the LINT file for an example. > > Was the error I pulled from the console the result of running out of mbufs, Yes. > or do I have something else wrong? Is it safe to assume that when I run out > of mbufs the system will crash? Often.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.3.95.971106105943.27975A-100000>