RFR(XS): 8213898: CDS dumping of springboot asserts in G1ArchiveAllocator::alloc_new_region
thomas.schatzl at oracle.com
Thu Nov 15 18:11:53 UTC 2018
On Thu, 2018-11-15 at 10:05 -0800, Jiangli Zhou wrote:
> Please review the following small fix for the
> assert(is_available(index)) failure when dumping the classes for
> springboot (thanks Eric Caspole for reporting the issue!).
> webrev: http://cr.openjdk.java.net/~jiangli/8213898/webrev.00/
> bug: https://bugs.openjdk.java.net/browse/JDK-8213898
> HeapRegionManager::find_highest_free is used by
> G1ArchiveAllocator::alloc_new_region at CDS dump time for allocating
> a highest free GC region when archiving selected java heap objects.
> We need to check if the region obtained from the
> HeapRegionManager::_regions is available, as it might be uncommitted
> during heap shrinking. The fix has been reviewed by Thomas Schatzl
> in the bug report. Thanks Thomas!.
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