RFR 8146984: SIGBUS: bool Method::has_method_vptr(const void*)+0xc
Coleen Phillimore
coleen.phillimore at oracle.com
Fri Jan 29 12:46:49 UTC 2016
Summary: Add address check and use SafeFetchN for Method* vptr access
when Method* may be bad pointer.
Tested with RBT and failing test case (reproduced 1 in 100 times) with
fatal in the 'return's in the change to verify.
open webrev at http://cr.openjdk.java.net/~coleenp/8146984/
bug link https://bugs.openjdk.java.net/browse/JDK-8146984
Thanks,
Coleen
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