Date: Tue, 20 Apr 1999 13:53:22 -0700 (PDT) From: Doug White <dwhite@resnet.uoregon.edu> To: Stanley.Hopcroft@ipaustralia.gov.au Cc: freebsd-questions@FreeBSD.ORG, Carl.Makin@ipaustralia.gov.au Subject: Re: 2.2.8-STABLE panic (page fault) Message-ID: <Pine.BSF.4.03.9904201349540.1514-100000@resnet.uoregon.edu> In-Reply-To: <4A256758.001E911C.00@noteshub01.aipo.gov.au>
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On Mon, 19 Apr 1999 Stanley.Hopcroft@ipaustralia.gov.au wrote:
> supervisor write, page not prsent
> fault 12 page fault while in kernel
>
> instruction pointer ? 0x08 0xf0 13 b2 4b
> stack pointer 0x10 0xef bf fe d8
> frame pointer 0x10 0xef bf ff e0
> code segment base 0x0 limit 0xfffff
> type 0x1b DPL 0 pre 1 def 32
>
> processor edlags interuptable resume IOPL = 0
> current process httpd
> page fault
You've attempted to recreate the message and have left out important info.
Please recopy the data and post it EXACTLY as printed. This is _very_
important!
> It has been very stable while running 2.2.7-RELEASE. This is now the
> second time I have had a 2.2.8-STABLE machine fail (can't say what
> happened in an other machine with identical processing load and very
> similar hardware) in this role.
>
> The last message in the log before the reboot messages was "out of mbuf
> clusters. Increase maxusers!
You need to crank up the number of mbufs. Try adding
options "NMBCLUSTERS=8192"
to your kernel config and rebuilding.
The dead ringer for this sort of thing is netstat -m output:
sturbei,ttyp3,~,24>netstat -m
62/256 mbufs in use:
33 mbufs allocated to data
29 mbufs allocated to packet headers
32/82/1536 mbuf clusters in use (current/peak/max)
^^^^ you care about this number
196 Kbytes allocated to network (36% in use)
0 requests for memory denied
0 requests for memory delayed
0 calls to protocol drain routines
If the mbuf clusters get to within 1/3 of the system max (4096?) then you
need the NMBCLUSTERS option.
See LINT and the mailing list archives for details.
Doug White
Internet: dwhite@resnet.uoregon.edu | FreeBSD: The Power to Serve
http://gladstone.uoregon.edu/~dwhite | www.freebsd.org
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