You could try it with a kernel built with options MP_LOCKDEBUG and see if it gives any clues.
On 20 March 2015 07:41:25 GMT+00:00, Dongsheng Song <dongsheng.s...@gmail.com> wrote: >Hi ports, > >I download OpenJDK 8u40 b25 source from: > >https://jdk8.java.net/java-se-8-ri/ >https://www.java.net/download/openjdk/jdk8u40/ri/openjdk-8u40-src-b25-10_feb_2015.zip > >Then building it with jdk-1.7.0.71v0: > >http://ftp.openbsd.org/pub/OpenBSD/snapshots/packages/amd64/jdk-1.7.0.71v0.tgz > >During the building, OpenBSD system frozen without any exception >messages, >I must do power off and power on manually. > >I'm running OpenBSD current: >OpenBSD 5.7-current (GENERIC.MP) #895: Wed Mar 18 18:55:03 MDT 2015 > >Which download and install from >http://ftp.openbsd.org/pub/OpenBSD/snapshots/amd64/install57.iso > >Regards, >Cauchy -- Sent from a phone, please excuse the formatting.