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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.rmit.EDU.AU!news.unimelb.EDU.AU!munnari.OZ.AU!news.hawaii.edu!ames!hookup!solaris.cc.vt.edu!newsfeed.internetmci.com!in2.uu.net!news.exodus.net!news.alt.net!news.serv.net!news.serv.net!not-for-mail From: zeno@serv.net (Sean T. Lamont) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Help! Running out of mbuf's! Date: 22 Nov 1995 02:37:29 -0800 Organization: ServNet Internet Services, Seattle, WA Lines: 28 Message-ID: <48uuh9$91i@zebu.serv.net> References: <48gugh$718@zebu.serv.net> NNTP-Posting-Host: zebu.serv.net Ok, as I posted recently, I'm getting a 'cannot send: no buffer space available' error from the network. This is a news server, but it's not highly loaded, so it surprises me that it does this. I increased NMBCLUSTERS in the kernel config to ~1024 (from 512+16*maxusers). This didn't really seem to help, So I've increased it to 4096 (it's too early to tell whether this helped or not.) It seems, however, that netstat -m says: x/26 mbuf clusters in use the '26' figure is the exact same number it was using before, even in the original kernel. My increase of the NMBCLUSTERS didn't change this figure at all. This is confusing, because I read the latter figure as "26-x are available." If I increase NMBCLUSTERS, this figure should presumably go up, but it hasn't. Could someone explain this to me or give me some hints as to how to avoid running out of mbufs? -- Sean T. Lamont, President / CEO, Abstract Software (ServNet) - Internet access * WWW hosting * TCP/IP * UNIX * NEXTSTEP * WWW Development - email: lamont@abstractsoft.com WWW: http://www.serv.net "...There's no moral, it's just a lot of stuff that happens". - H. Simpson