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Date:      Fri, 04 Jun 2010 02:37:14 -0700
From:      Dave Hayes <dave@jetcafe.org>
To:        John Baldwin <jhb@freebsd.org>
Cc:        Garrett Cooper <yanefbsd@gmail.com>, freebsd-stable@freebsd.org, Clifton Royston <cliftonr@lava.net>, Jeremy Chadwick <freebsd@jdc.parodius.com>
Subject:   Re: Locking a file backed mdconfig into memory 
Message-ID:  <201006040937.o549bEFt054288@hugeraid.jetcafe.org>
In-Reply-To: <201006031029.00588.jhb@freebsd.org> 
References:  <201005272348.o4RNmgWh014243@hugeraid.jetcafe.org>  <201006011020.01318.jhb@freebsd.org> <201006022237.o52MbxZM066281@hugeraid.jetcafe.org> <201006031029.00588.jhb@freebsd.org>

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John Baldwin <jhb@freebsd.org> writes:
> On Wednesday 02 June 2010 6:37:59 pm Dave Hayes wrote:
>> John Baldwin <jhb@freebsd.org> writes:
>> > Ok, if you are using a stock mfsroot from a release build, that should
>> > work fine.  If you have built a custom mfsroot that is larger, then
>> > you may need to increase NKPT on i386.  In very recent 7 and later you
>> > can do this by setting it to a new value in your kernel config.  In
>> > older versions you can do this by manually adding a #define to set a
>> > new value of NKPT in opt_global.h or hacking on the source directly.
>> 
>> Is this also true for amd64 (which is my particular target)?
>
> It might be.  What is the panic you are seeing?

I can't see the panic as it repeatedly scrolls across the console screen
faster than I can read it. In this case the mfsroot is around 275MB. 

I have noticed that sometimes I can build an mfsroot that does not crash
of this size.
-- 
Dave Hayes - Consultant - Altadena CA, USA - dave@jetcafe.org 
>>> The opinions expressed above are entirely my own <<<

People usually oppose things because they are ignorant of them.





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