DragonFly users List (threaded) for 2007-07
DragonFly BSD
DragonFly users List (threaded) for 2007-07
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Re: Warning, objcache(cluster mbuf): Exhausted!


From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Sun, 29 Jul 2007 12:34:39 -0700 (PDT)

:Hi, it's me again. I get the following error. What does this mean?
:Brother Google did not help...
:
:-- 
:Gergo Szakal MD <bastyaelvtars@gmail.com>

    It means the system is trying to use more network buffers then the
    kernel is willing to provide.  This can happen:

    * If your machine does not have a lot of memory but is handling a
      large number of simultanious TCP connections.

    * If your machine is handling hundreds to thousands of simultanious
      TCP connections the number of mbuf clusters may have to be tuned
      up with boot-time kernel environment variables (kern.ipc.nmbclusters
      setting in /boot/loader.conf).

    * If you have adjusted certain sysctl parameters, such as TCP buffer
      sizes, too large.

    One can usually figure out what is going on by running netstat -m,
    netstat -tn, ps, etc, to figure out what is eating all the mbufs.

					-Matt
					Matthew Dillon 
					<dillon@backplane.com>



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