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Date:      Thu, 12 Jul 2007 13:30:51 -0500
From:      Eric Anderson <anderson@freebsd.org>
To:        Craig Boston <craig@yekse.gank.org>, Juergen Lock <nox@jelal.kn-bremen.de>, attilio@freebsd.org, freebsd-emulation@freebsd.org, freebsd-ports@freebsd.org
Subject:   Re: experimental qemu-devel port update, please test!
Message-ID:  <4696735B.7070604@freebsd.org>
In-Reply-To: <20070712180750.GB77654@nowhere>
References:  <20070702203027.GA45302@saturn.kn-bremen.de>	<46925324.9010908@freebsd.org>	<3bbf2fe10707091140h6cdc7469nac5be03a8c8a60cb@mail.gmail.com>	<200707092000.29768.dfr@rabson.org>	<200707092149.l69LnXe9023835@saturn.kn-bremen.de>	<20070712175252.GA77654@nowhere> <20070712180750.GB77654@nowhere>

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Craig Boston wrote:
> On Thu, Jul 12, 2007 at 12:52:52PM -0500, Craig Boston wrote:
>> For some reason when the ioctl is issued, curproc points to a totally
>> bogus proc structure.  curthread seems to be sane as far as I can tell,
>> but the process it claims to belong to is full of junk.
> 
> Aha!  The problem isn't that curproc is garbage, but rather that it's
> being interpreted wrong.
> 
> struct proc has some extra fields when KSE is #defined.  KSE recently
> became a kernel option and was put in the DEFAULTS file, so everyone's
> kernel has it defined.  But kqemu is being compiled without it.
> 
> I compiled with -DKSE and now kqemu works!
> 
> This seems like it would be a common problem for modules compiled
> outside the kernel tree.  Is there an established way to get the
> standard configuration options?
> 
> I'm thinking also about other options like SMP, that for instance
> changes the way mutexes work.


Great work!  Thanks for chugging on it..

Do you think this could affect nvidia kernel modules?  I think there was 
an alternate thread about nvidia modules causing systems to panic/lock up.

Eric






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