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Subject: vm.pmap.pcid_enabled="0" seems to eliminate Java/Jenkins crashing
 problems in FBSD 10
From: Craig Rodrigues <rodrigc@FreeBSD.org>
To: "freebsd-java@freebsd.org" <freebsd-java@freebsd.org>
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Cc: FreeBSD Release Engineering Team <re@freebsd.org>, attilio@freebsd.org,
 Xin Li <delphij@freebsd.org>, FreeBSD Security Team <secteam@freebsd.org>,
 Dmitry Sivachenko <trtrmitya@gmail.com>, Jung-uk Kim <jkim@freebsd.org>
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Hi,

I am followed Jung-uk Kim's advice here:

http://lists.freebsd.org/pipermail/freebsd-java/2014-February/010582.html


and configured the one of the FreeBSD stable/10 VM's (running at r261732)
that I have running
under BHyve with the
following in /boot/loader.conf:

vm.pmap.pcid_enabled="0"


In this VM, I then ran a Jenkins build, and it ran successfully to
completion.
You can see the logs for this  build here:
https://jenkins.freebsd.org/jenkins/job/FreeBSD_HEAD/146/


Previously, I had problems with the JVM crashing:
http://lists.freebsd.org/pipermail/freebsd-java/2014-February/010536.html

I did not encounter problems with the JVM crashing
after setting vm.pmap.pcid_enabled="0".

Thanks.
--
Craig