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Date: Mon, 12 Dec 2005 22:27:22 +0100
To: Atanas <atanas@asd.aplus.net>, freebsd-stable@freebsd.org
References: <439DE88B.1090407@asd.aplus.net>
From: "Ronald Klop" <ronald-freebsd8@klop.yi.org>
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Subject: Re: 6.0 random freezes
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On Mon, 12 Dec 2005 22:15:55 +0100, Atanas <atanas@asd.aplus.net> wrote:

> Hi,
>
> I have 3 machines running 6.0-RELEASE, and recently 2 of them started
> freezing once a day or so. There are no error messages on the console or
> in the system logs.

What happens if you set one of these sysctl values to 0? (This disables  
SMP changes from 5.4 to 6.0.)
debug.mpsafevfs: 1
debug.mpsafenet: 1
debug.mpsafevm: 1

And is there a possibility (performance-wise) to build a kernel with  
WITNESS and/or INVARIANTS options compiled in. This will give more info  
about possible locking problems. Your system will run slower. And because  
of this the problem may not occur anymore, but it is worth the try.

Ronald.

-- 
  Ronald Klop
  Amsterdam, The Netherlands