Integrated: 8256435: [TESTBUG] java/foreign/TestHandshake.java fails with direct buffer memory OOM

[Nick Gasson]

On Tue, 17 Nov 2020 09:07:03 GMT, Nick Gasson <ngasson at openjdk.org> wrote:

> I ran this test on a machine with 224 logical CPUs and it fails with:
> 
>   ITERATION 3
>   test TestHandshake.testHandshake("SegmentMismatchAccessor", TestHandshake$$Lambda$57/0x00000001000e7968 at 37c4b344): failure
>   java.lang.OutOfMemoryError: Cannot reserve 1000000 bytes of direct buffer memory (allocated: 536008192, limit: 536870912)
> 
> SegmentMismatchAccessor allocates a 1MB native segment for each CPU on
> each iteration. This can quickly reach the allocation limit if there is
> no intervening GC. Explicitly close the segment after each iteration to
> release the memory.

This pull request has now been integrated.

Changeset: 26a1ec1b
Author:    Nick Gasson <ngasson at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/26a1ec1b
Stats:     9 lines in 1 file changed: 8 ins; 0 del; 1 mod

8256435: [TESTBUG] java/foreign/TestHandshake.java fails with direct buffer memory OOM

Reviewed-by: mcimadamore

-------------

PR: https://git.openjdk.java.net/jdk/pull/1254