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

Gustavo Romero gromero at linux.vnet.ibm.com
Tue Mar 20 16:46:01 UTC 2018


On 03/20/2018 11:29 AM, Rob McKenna wrote:
> Approved

Thank you.

@Volker, do you mind to push that fix to jdk8u-dev for me please?


> 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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