From owner-freebsd-arm@FreeBSD.ORG  Sat Mar 23 18:15:08 2013
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Date: Sat, 23 Mar 2013 11:15:08 -0700 (PDT)
From: MagnusNilsson <magnus.nilsson@gmail.com>
To: freebsd-arm@freebsd.org
Message-ID: <1364062508310-5798411.post@n5.nabble.com>
Subject: Preemption on MV78100 (ARMv5TE)?
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I am looking for information about FreeBSD 8.2 on Marvell MV78100 (Discovery
SOC) - an ARMv5TE - with preemption enabled.
My kernel is stable, but if I enable preemption it promptly crashes - during
or within minutes of boot.

My configuration is similar to:
http://svn.freebsd.org/base/head/sys/arm/conf/DB-78XXX
I notice that this configuration does not have the PREEMPTION option - not
even commented - whereas many other configurations in:
http://svn.freebsd.org/base/head/sys/arm/conf/
do have it.

I am interested to hear if anyone has been able to run MV78100 (or similar)
with preemption enabled - and in that case what your configuration and
FreeBSD version is - or if anyone can confirm that preemption is not
implemented for this processor.

Thank you.



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