Public bug reported: == Comment: #0 - Gustavo Bueno Romero <grom...@br.ibm.com> - 2016-06-17 15:06:02 == ---Problem Description--- JVM on PPC64 LE crashes due to an illegal instruction in JITed code. The root cause is that the unaligned 4-byte displacement in instructions like LWA (Load Word Algebraic, a DS-from instruction) is not handled correctly and yields an illegal instruction inside the JITed method Contact Information = grom...@br.ibm.com ---uname output--- Linux hostname 4.4.0-24-generic #43-Ubuntu SMP Wed Jun 8 19:25:36 UTC 2016 ppc64le ppc64le ppc64le GNU/Linux Machine Type = Not relevant ---Debugger--- A debugger is not configured ---Steps to Reproduce--- Please find a test case at: https://bugs.openjdk.java.net/browse/JDK-8158260 Userspace tool common name: javac, java The userspace tool has the following bit modes: 64-bit
Userspace rpm: openjdk-8-jdk:ppc64el 8u91-b14-0ubuntu4~16.04.1 Userspace tool obtained from project website: na *Additional Instructions for grom...@br.ibm.com: -Attach ltrace and strace of userspace application. == Comment: #1 - Gustavo Bueno Romero <grom...@br.ibm.com> - 2016-06-17 15:06:43 == JVM on PPC64 LE crashes due to an illegal instruction in JITed code. The root cause is that the unaligned 4-byte displacement in instructions like LWA (Load Word Algebraic, a DS-from instruction) is not handled correctly and yields an illegal instruction inside the JITed method [1]. The patch is already available upstream on OpenJDK 9 [2] and applying it to jdk8u is trivial [3]. Could you please proceed to apply the patch [2] (PPC-only code is affect) in order to fix the issue described? Thank you. [1] https://bugs.openjdk.java.net/browse/JDK-8158260 [2]http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/5f3687f2143c [3] http://mail.openjdk.java.net/pipermail/ppc-aix-port-dev/2016-June/002569.html ** Affects: ubuntu Importance: Undecided Assignee: Taco Screen team (taco-screen-team) Status: New ** Tags: architecture-ppc64le bugnameltc-142797 severity-high targetmilestone-inin--- ** Tags added: architecture-ppc64le bugnameltc-142797 severity-high targetmilestone-inin--- ** Changed in: ubuntu Assignee: (unassigned) => Taco Screen team (taco-screen-team) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1594393 Title: JVM on PPC64 LE crashes due to an illegal instruction in JITed code To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1594393/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
