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Date:      Mon, 5 Nov 2007 00:41:37 +0000
From:      Thomas Sparrevohn <Thomas.Sparrevohn@btinternet.com>
To:        freebsd-current@freebsd.org
Cc:        Peter Schuller <peter.schuller@infidyne.com>
Subject:   Re: ZFS Hangs
Message-ID:  <200711050041.38229.Thomas.Sparrevohn@btinternet.com>
In-Reply-To: <472DDEA2.7080804@FreeBSD.org>
References:  <200711021208.25913.Thomas.Sparrevohn@btinternet.com> <200711041423.54336.Thomas.Sparrevohn@btinternet.com> <472DDEA2.7080804@FreeBSD.org>

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On Sunday 04 November 2007 15:00:50 Kris Kennaway wrote:

> 
> http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html
> 

Oh my god - Overlooked that ;-) - funny that -  Its a bit tricky as it not possibly to dump a kernel
when the swap is on ZFS - I did a test with all debugging enabled and the problem
did not show up - which makes it somewhat nasty - I check if I can reproduce it 
with only DDB enabled 

But as I said - I have been running with root on ZFS for quite a while without problems - 
There are however two things that does not make much sense 

1) number of vnodes are reduces to 100,000  by the kernel (AMD64)
2) If I extent the cache size "wildly" it seems to be stable about 600MB +- 67MB


Regards 
	Thomas 


 




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