Date: Mon, 6 Dec 1999 14:41:42 -0800 (PST) From: Alfred Perlstein <bright@wintelcom.net> To: Doug Luce <doug@freebsd.con.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Kernel dumps not happening! Message-ID: <Pine.BSF.4.21.9912061436390.4557-100000@fw.wintelcom.net> In-Reply-To: <Pine.BSI.4.10.9912061626070.17893-100000@polytetrafluoroethylene.telerama.com>
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On Mon, 6 Dec 1999, Doug Luce wrote:
> Hello!
>
> I'm getting a message at crash time:
>
> Nov 29 16:54:23 tango /kernel: Out of mbuf clusters - increase maxusers!
>
> Followed shortly on bootup by:
>
> Nov 29 17:04:57 tango savecore: no core dump
>
> My question: why the hell isn't there a core dump?
I'm going to try some assuptions here:
a) you're running 2.2.x and haven't upgraded to 3.x means that you are
experiancing this problem on a production box that you can't upgrade.
b) you really don't care about the crashdump, you just want the box to
stop rebooting. :)
I would take the advice given by the kernel, increase maxusers and compile
a new kernel, if maxusers is already very high you may want to fiddle with
NMBCLUSTERS, do a search of the mailing lists for NMBCLUSTER guidlines.
> I believe I've followed all the necessary steps to ensure a dump. Here's
> some sysctl output:
>
> machdep.do_dump: 1
> kern.dumpdev: { major = 4, minor = 131073 }
>
> >From rc.conf:
>
> dumpdev="/dev/sd0s1b"
>
> And that device:
>
> brw-r----- 1 root operator 4, 0x00020001 Apr 15 1999 /dev/sd0s1b
>
> Here's pstat -s:
>
> Device 512-blocks Used Avail Capacity Type
> /dev/sd0s1b 2048000 15728 2032144 1% Interleaved
>
> So what's going on? This is on a 2.2.8 release. Anyone know of a stock
> problem with it?
If you could I would at least upgrade this to a 2.2-stable release using
cvsup set your tag to RELENG_2_2 for your source dir.
-Alfred
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