hg: jdk/jdk: 8246406: ZGC: Generate crash reports in debug builds for a few important errors paths

[stefan.karlsson at oracle.com]

Changeset: 0df6d88c783f
Author:    stefank
Date:      2020-06-05 09:05 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/0df6d88c783f

8246406: ZGC: Generate crash reports in debug builds for a few important errors paths
Reviewed-by: pliden, eosterlund

! src/hotspot/os/bsd/gc/z/zPhysicalMemoryBacking_bsd.cpp
! src/hotspot/os/linux/gc/z/zPhysicalMemoryBacking_linux.cpp
! src/hotspot/share/gc/z/zMarkStackAllocator.cpp
! src/hotspot/share/gc/z/zVirtualMemory.cpp