Date: Tue, 04 Mar 2014 12:44:34 -0600 From: Alan Cox <alc@rice.edu> To: Craig Rodrigues <rodrigc@FreeBSD.org>, Konstantin Belousov <kib@freebsd.org>, Peter Holm <pho@freebsd.org>, Alan Cox <alc@freebsd.org>, Jung-uk Kim <jkim@freebsd.org>, David Xu <davidxu@freebsd.org>, Xin Li <delphij@freebsd.org>, Attilio Rao <attilio@freebsd.org> Cc: freebsd-current Current <freebsd-current@freebsd.org>, "jenkins-admin@freebsd.org" <jenkins-admin@freebsd.org>, "freebsd-java@freebsd.org" <freebsd-java@freebsd.org> Subject: Re: vm.pmap.pcid_enabled="1" causes Java to coredump in FBSD 10 Message-ID: <53161F12.4050801@rice.edu> In-Reply-To: <CAG=rPVf%2B9MiTVCxxtXUABTJR5UWRm8Tgeb2BEpmUB9v3xxUMJw@mail.gmail.com> References: <CAG=rPVf%2B9MiTVCxxtXUABTJR5UWRm8Tgeb2BEpmUB9v3xxUMJw@mail.gmail.com>
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On 03/03/2014 17:12, Craig Rodrigues wrote: > [Resending, as the first message I sent didn't seem to go through to > all the recipients] > > Hi, > > As part of the Jenkins deployment in the FreeBSD cluster > the jenkins-admin team observed that when running Jenkins on FreeBSD 10, > the Java virtual machine from the openjdk6 or openjdk7 port > would coredump regularly. > > See item #10 here: https://wiki.freebsd.org/Jenkins > > On the advice of Jung-uk Kim, I put the following in /boot/loader.conf: > > vm.pmap.pcid_enabled="0" > > and rebooted. > > After that, the Java coredumping problems went away. > > Can someone with VM expertise look into this problem and suggest a fix? > At the end of January, Kostik was looking into another problem report with the PCID feature. However, I don't know where his efforts currently stand. Given the nature of the PCID feature, it's very likely that these problems all have the same root cause. > There are many reports of Java coredumping on FreeBSD 10, such as this > one: > http://lists.freebsd.org/pipermail/freebsd-java/2014-March/010606.html > > It would be good to fix this, so that Java works "out of the box" on > FreeBSD 10. It's not good when kernel tunables need to be set > so that Java can work. :( > > Thanks. > > -- > Craig
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