------- Comment From [email protected] 2017-07-20 17:55 EDT------- Thanks, Daitx
-- You received this bug notification because you are a member of OpenJDK, which is subscribed to openjdk-8 in Ubuntu. https://bugs.launchpad.net/bugs/1697348 Title: Java throws "mbind: Invalid argument" message when invoked with UseNUMA Status in The Ubuntu-power-systems project: New Status in openjdk-8 package in Ubuntu: New Bug description: Problem Description ======================== Java throws "mbind: Invalid argument" message when invoked with UseNUMA flag in certain numa topologies with non-consecutive nodes. ---uname output--- not relevant ---Additional Hardware Info--- The JVM code used to discover which numa nodes it can bind assumes that nodes are consecutive and tries to bind from 0 to numa_max_node(), i.e. 0 to the highest node number available on the system. However, at least on PPC64 that assumption is not always true. For instance, the following numa topology: available: 4 nodes (0-1,16-17) node 0 cpus: 0 8 16 24 32 node 0 size: 130706 MB node 0 free: 145 MB node 1 cpus: 40 48 56 64 72 node 1 size: 0 MB node 1 free: 0 MB node 16 cpus: 80 88 96 104 112 node 16 size: 130630 MB node 16 free: 529 MB node 17 cpus: 120 128 136 144 152 node 17 size: 0 MB node 17 free: 0 MB node distances: node 0 1 16 17 0: 10 20 40 40 1: 20 10 40 40 16: 40 40 10 20 17: 40 40 20 10 Machine Type = VM and BM Steps to Reproduce ============================= On an topology similar to the aforementioned numa topology just issue: "java -XX:+UseParallelGC -XX:+UseNUMA -version" == Comment: #1 - Gustavo Bueno Romero <[email protected]> - 2017-06-09 10:19:37 == Bug is already fixed upstream: https://bugs.openjdk.java.net/browse/JDK-8181462 http://hg.openjdk.java.net/jdk8u/jdk8u-dev/hotspot/rev/4a575a49e938 == Comment: #3 - Gustavo Bueno Romero <[email protected]> - 2017-06-09 10:22:03 == Dear Daitx, could you please apply that 8u upstream fix on the next CPU cycle (around 18 July), please? Thank you. Regards. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1697348/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~openjdk Post to : [email protected] Unsubscribe : https://launchpad.net/~openjdk More help : https://help.launchpad.net/ListHelp
