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Date: Mon, 26 Jun 1995 02:02:51 -0400 (EDT)
From: Andrew White <awhite@dca.net>
Reply-To: Andrew@dca.net
To: bugs@FreeBSD.org
Subject: (fwd) "kernel: mb_map full" crash (fwd)
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Hello, bugs@freebsd.org.

I posted this to comp.unix.bsd.freebsd.misc a few days ago and didn't get
an answer.  Since my server crashed again this morning with the same 
error, my sense of urgency has increased and I hope to find out whether I 
have indeed been the unfortunate discoverer of a bug.

Could you please let me know if the problem below is known?

Thanks a million!

Andrew


awhite@dca.net    http://www.dca.net/     (work-related)
Andrew@White.org  http://www.white.org/   (personal)
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Subject: "kernel: mb_map full" crash
Date: 20 Jun 1995 01:55:10 -0400
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Keywords: kernel crash freebsd 2.1.0
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Hello, fellow FreeBSD fans.  A little troubleshooting help, por favor?

I experienced a nasty crash, which caused a reboot, early this morning.  The
last entry in syslog before the reboot says:

<date> <time> <hostname> kernel: mb_map full

This error message occurs in sys/kern/uipc_mbuf.c of the source tree. 
Specifically, a call to kmem_malloc() in the function m_clalloc() is
returning NULL.  It looks to me like a request for wired memory (mbufs?)
is failing.  Is this a bug, or do I just need more RAM?

I am running FreeBSD 2.0-R with the 2.1.0-Development#0 kernel installed. 
I'm using a Bustek VESA SCSI controller, if it matters.  Do any kernel
patches fix this problem -- or perhaps I have something misconfigured?

Please consider posting if you have more information about this problem.

Thanks!
  -Andrew








--
Andrew White, Social Science Computing/SAS Computing, Univ. of Pennsylvania
EMAIL: Work-related: awhite@ssc.upenn.edu Personal: Andrew@White.org
WWW:   http://www.ssc.upenn.edu/~awhite/                
Tel:   +1-215-898-2451 (voice) +1-215-898-7769 (fax)