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Date:      Sun, 10 Mar 2002 16:09:33 -0500
From:      Glenn Gombert <ggombert@imatowns.com>
To:        Jeff Roberson <jroberson@chesapeake.net>, current@freebsd.org
Subject:   Re: Call for UMA (allocator) testers.
Message-ID:  <3.0.6.32.20020310160933.00dae0a8@imatowns.com>
In-Reply-To: <20020307183325.K92683-100000@mail.chesapeake.net>

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 I have the UMA patch installed on two systems here, a 500Mhz K7 system and
dual PIII SMP box, both of which have WITNESS and INVARIANTS configured in
the kernel. I will run them for the next few days, and report anything that
looks unusual in operation :)

GG.


>I'd like people to test with WITNESS and INVARIANTS, although with these
>options on it is somewhat slower than the original kernel.  With these
>disabled it is on par.  If you have a SMP machine you will get witness
>warnings if you run low on memory.  There is no real problem except that
>witness doesn't understand that the condition is safe.
>
>If you do test this patch, please send me an email so I know how many
>people are using this.  If you get a lock order violation other than
>"acquring duplicate lock of same type" please let me know.  If you get a
>panic, please give me a stack trace (tr in ddb) and the output of "call
>uma_print_stats" in the debugger if that is possible.
>
>This has been debugged and tested over several months so it is quite
>stable for me.  Hopefully it will be stable for you too. :-)
>
>The patch and new files are available at:
>http://www.chesapeake.net/~jroberson/uma.tar
>
>Untar into src/sys and apply the patch.  After you rerun config you should
>be ready to compile.
>
>Thanks,
>Jeff
>
>
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>
Glenn Gombert
ggombert@imatowns.com


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