README for jenkins POST INSTALL noexec and /tmp troubleshooting ------------------------------- Many simple exploits that are used against servers rely upon being able to execute commands in /tmp. As a security precaution, /tmp is mounted with noexec. This is a good thing and should generally stay this way, but jenkins doesn't think so, and it will give an error like: "UnsatisfiedLinkError: ... failed to map segment from shared object". In this situation, we need to edit file /usr/etc/jenkins.conf and add "-Djava.io.tmpdir=/your/chrooted/tmp" into JENKINS_JAVA_OPTIONS variable.