RFR: JDK-8143146 : SIGSEGV, Problematic frame: # V [libjvm.so+0xd0c0cc] void InstanceKlass::oop_oop_iterate_oop_maps_specialized<true, oopDesc*, MarkAndPushClosure>

[Shafi Ahmad]

Hi,

 

Please review the backport of bug: "JDKJDK-8143146 : SIGSEGV, Problematic frame: # V [libjvm.so+0xd0c0cc] void InstanceKlass::oop_oop_iterate_oop_maps_specialized<true,oopDesc*,MarkAndPushClosure>" to jdk8u-dev

 

Please note that this is not a clean backport due to - 

A) Location of file "g1CollectedHeap.cpp" are different in jdk9 and jdk8:

   jdk8: src/share/vm/gc_implementation/g1/

   jdk9: src/share/vm/gc/g1/

 

B) Compilation failure:

Variable args assert "#define assert(p, ...) vmassert(p, __VA_ARGS__)" is defined in jdk9/hs-rt/hotspot/src/share/vm/utilities/debug.hpp where as it is not defined in jdk8 and hence changeset leads to compilation failure.

 

Used err_msg ["typedef FormatBuffer<> err_msg;]" which convert var args to single arg. It is used in many places even in jdk9/hs-rt/hotspot.

 

C) jdk8 does not have "/test/lib" used for "import sun.hotspot.WhiteBox;" so I have change the line
+ * @library /testlibrary /test/lib 
to
+ * @library /testlibrary /testlibrary/whitebox
 

 

Webrev: http://cr.openjdk.java.net/~rpatil/shafi/8139424/webrev.00/

jdk9 bug: https://bugs.openjdk.java.net/browse/JDK-8139424

Backport bug: https://bugs.openjdk.java.net/browse/JDK-8143146

Original patch pushed to jdk9: http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/636e286dd5da

 

Test:  Run jprt and relevant jtreg test.

 

Regards,

Shafi