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Date:      Tue, 18 May 2010 19:54:41 +0200
From:      Jan Henrik Sylvester <me@janh.de>
To:        Benjamin Kaduk <kaduk@MIT.EDU>
Cc:        afs-list freebsd <freebsd-afs@freebsd.org>
Subject:   Re: AFS on FreeBSD 8?
Message-ID:  <4BF2D461.8030302@janh.de>
In-Reply-To: <alpine.GSO.1.10.1005181201010.29136@multics.mit.edu>
References:  <558186334.2619.1271175586732.JavaMail.root@thunderbeast.private.linuxbox.com> <alpine.GSO.1.10.1004131220540.29136@multics.mit.edu> <4BC4A5F1.6050406@janh.de> <alpine.GSO.1.10.1004131314070.29136@multics.mit.edu> <4BC5EEB5.5050109@janh.de> <alpine.GSO.1.10.1004141242470.29136@multics.mit.edu> <4BE01AF0.3080309@janh.de> <alpine.GSO.1.10.1005041225120.29136@multics.mit.edu> <4BF2B962.50408@janh.de> <alpine.GSO.1.10.1005181201010.29136@multics.mit.edu>

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On 05/18/10 18:10, Benjamin Kaduk wrote:
 > opt_global.h should be coming from your kernel's build tree ...

Yeah, sorry, I asked the same question before. (I never did a buildworld 
or buildkernel on this machine after installing from the release build 
and using freebsd-update.) I try to remember next time.

> On Tue, 18 May 2010, Jan Henrik Sylvester wrote:
>> I have upgraded almost all of my machines from i386 to amd64 and would
>> like to repeat the OpenAFS testing -- even though you suspect it is
>> SMP, which applies to all machines available to me.

On amd64, the listing of the directories was instant unlike on i386. 
Reading (small) files caused no problems, but I was able to crash the 
machine accessing some weird entry (some object that OpenAFS on Linux 
shows with "?" for the file permissions) and -- more realistically -- 
deadlock all access to afs upon trying to copy a large file to afs.

> I expect that you will find AFS more usable if you set
> kern.smp.disabled=1 in /boot/loader.conf, which will make your machine
> effectively single-processor.

I just tried that and copying a large file to afs caused a deadlock of 
afs, too. I guess it is not just SMP.

I have not tried copying smaller files or starting afsd with different 
parameters than suggested in the ports README (-dynroot -fakestat-all 
-afsdb -memcache -daemons 4).

Cheers,
Jan Henrik



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