Date: Fri, 26 May 1995 12:59:37 -0400 (EDT) From: "Alok K. Dhir" <adhir@iagi.net> To: David Greenman <davidg@Root.COM> Cc: current@FreeBSD.org Subject: Re: "mb_map full" ? Message-ID: <Pine.BSI.3.91.950526125613.11002A-100000@bigdipper.iagi.net> In-Reply-To: <199505202358.QAA00163@corbin.Root.COM>
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On Sat, 20 May 1995, David Greenman wrote: > > On a current system (supped and built this morning), I just received a > >"mb_map full" message in syslog just after starting a news feed to INN. > >Everything "appears" to be working though. INN is using mmap(). I > >thought this bug was fixed long ago? Or is something new? > > Fixed? It's not a problem that can be fixed other than trying to make it > dynamic (which would be quite difficult given the current mbuf cluster > allocation scheme). Someone suggested making it a function of maxusers; I > might do this someday. I would guess that you don't have options GATEWAY in > your kernel, and thus the number of mbuf clusters is small enough that you > occasionally hit the in-use limit. You can increase the limit with options > "NMBCLUSTERS=512" (or more if you need). Along these lines - we are running -current with a full news feed. As you may recall, I had posted some problems we were having with the system freezing (latest inn port, etc). In any case, several people suggested we add the following to our kernel conf file: #for News servers options "CHILD_MAX=128" options "OPEN_MAX=128" options "NMBCLUSTERS=512" And someone also mailed me a patch for INN which apparently seals up a memory leak problem. I did all four things (applied patch and added above lines) and the machine seems much more stable now. I am mailing because I am wondering whether you can offer advice as to either additional kernel options I may need to optimize this machine's uptime, or values for the above options which may be more appropriate. Thanks! Alok K. Dhir Internet Access Group, Inc. adhir@iagi.net (301) 652-0484 Fax: (301) 652-0649 http://www.iagi.net
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