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Date:      Fri, 10 Oct 2008 13:07:43 +0200
From:      Laszlo Nagy <gandalf@shopzeus.com>
To:        Jeremy Chadwick <koitsu@FreeBSD.org>
Cc:        Johan Hendriks <Johan@double-l.nl>, freebsd-questions@freebsd.org
Subject:   Re: [SOLVED] Re: 7.1 hangs, shutdown terminated
Message-ID:  <48EF377F.1030606@shopzeus.com>
In-Reply-To: <20081010103753.GA30120@icarus.home.lan>
References:  <48EF14E1.9080808@shopzeus.com> <57200BF94E69E54880C9BB1AF714BBCB5DE18C@w2003s01.double-l.local> <48EF1C9C.3020201@shopzeus.com> <20081010091738.GA27925@icarus.home.lan> <48EF23CB.8020104@shopzeus.com> <20081010103753.GA30120@icarus.home.lan>

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> Firstly, I see a periodic(8) job that DOES use find -sx, which means
> your attempt to track it down was faulty, and your syntax should have
> been "find -sx /" not "find / -sx".  See here:
>
> /etc/periodic/security/100.chksetuid:   find -sx $MP /dev/null -type f \
>   
Thanks for clearing that out. :-) I did not remember what it was and 
failed to find it.
> $MP == mountpoint, e.g. /, /var, or any other mounted filesystem.
>
> So, what you saw was the periodic check looking for setuid-root
> binaries.
>
> Secondly, the kernel does not spawn userland processes like find(1).
>
> Thirdly, dirmem and dirmem_max are *pure* kernel things.  What they do
> is control the amount of memory used for directory structure caching;
> rather than continually hit the disk every time and spend all that time
> handling directory contents, the kernel can cache previously-fetched
> contents in memory
Now it stays this value constantly:

vfs.ufs.dirhash_mem: 44306131

I think it is now caching everything.

Thank you again, and sorry for the dumb questions.

   Laszlo


 

  



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