[8u-dev] Request for Approval for CR 8198794: Hotspot crash on Cassandra 3.11.1 startup with libnuma 2.0.3

Rob McKenna rob.mckenna at oracle.com
Tue Mar 20 14:29:30 UTC 2018



On 16/03/18 20:15, Gustavo Romero wrote:
> Hi,
> I would like to request the approval for pushing the following change
> that applies cleanly to jdk8u-dev except for an offset correction and
> a file path adjust (due to repo consolidation) and fixes a JVM crash
> when -XX:+UseNUMA is used on a system with libnuma 2.0.3 or older:
> Bug          : https://bugs.openjdk.java.net/browse/JDK-8198794
> Change       : http://hg.openjdk.java.net/jdk/hs/rev/7fb0ad2d8749
> Review Thread: http://mail.openjdk.java.net/pipermail/hotspot-dev/2018-March/030657.html
> This change is in shared code but is of very low risk since it can be
> regarded as addressing a sort of corner case on libnuma API v2
> implementation where numa_nodes_ptr variable is not defined before
> the libnuma 2.0.5 (2010). Thus nothing changes for any system that
> uses a recent libnuma (from Oct 2010 to the present), hence for the
> great majority of Linux distros releases in use today.
> Thank you.
> Best regards,
> Gustavo

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