On Fri, 3 Nov 2023 12:42:46 GMT, Roman Kennke <rken...@openjdk.org> wrote:
> See JBS issue for details. > > Testing: > - [x] gc/logging/TestUnifiedLoggingSwitchStress.java -XX:+UseParallelGC > - [x] tier1 -XX:+UseParallelGC > - [ ] tier2 -XX:+UseParallelGC > - [ ] hotspot_gc > * JDK-8319376 > > It is not totally clear how we can get a forwarded object in eden in the > > first place. > > This can happen when promotion-failure occurs. Serial and G1 have special > code to fix self-forwarded (promotion-fail) objs. Maybe Parallel should do > sth similar. Maybe. But that is not (only) what is happening here. I added a check for self-forwarded into my proposed change and it asserts like this: # Internal Error (/home/rkennke/src/openjdk/jdk/src/hotspot/share/memory/heapInspection.cpp:217), pid=7955, tid=8208 # assert(obj->forwardee() == obj) failed: expect self-forwarded: obj: 0x00000000fac62258, fwd: 0x00000000fd6bac78 ------------- PR Comment: https://git.openjdk.org/jdk/pull/16494#issuecomment-1795334683
