When SurvivorAlignmentInBytes value greater then YoungPLABSize, following assertion fails when ParNew copying survived object from eden to survivor:

#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/HUDSON/workspace/8-2-build-linux-amd64/jdk8u40/1614/hotspot/src/share/vm/gc_implementation/parNew/parNewGeneration.cpp:258), pid=12731, tid=139798762899200
# assert(obj != NULL || plab->words_remaining() < word_sz) failed: Else should have been able to allocate
#
# JRE version: Java(TM) SE Runtime Environment (8.0_40-b08) (build 1.8.0_40-ea-fastdebug-b08)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.40-b12-fastdebug mixed mode linux-amd64 compressed oops)
# Core dump written. Default location: /tmp/sa/core or core.12731
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#

--------------- T H R E A D ---------------

Current thread (0x00007f2580026800): GCTaskThread [stack: 0x00007f256f8a4000,0x00007f256f9a5000] [id=12736]

Stack: [0x00007f256f8a4000,0x00007f256f9a5000], sp=0x00007f256f9a2f20, free space=1019k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0xfddbd2] VMError::report_and_die()+0x2d2
V [libjvm.so+0x7211d4] report_vm_error(char const*, int, char const*, char const*)+0x84
V [libjvm.so+0xd90838] ParScanThreadState::alloc_in_to_space_slow(unsigned long)+0x168
V [libjvm.so+0xd97103] ParNewGeneration::copy_to_survivor_space_avoiding_promotion_undo(ParScanThreadState*, oop, unsigned long, markOopDesc*)+0x10e3
V [libjvm.so+0x92a416] ParNewGeneration::copy_to_survivor_space(ParScanThreadState*, oop, unsigned long, markOopDesc*)+0xd6
V [libjvm.so+0x92d87c] void ParScanClosure::do_oop_work<unsigned int>(unsigned int*, bool, bool)+0x1fc
V [libjvm.so+0x91878b] InstanceKlass::oop_oop_iterate_nv(oop, ParScanWithoutBarrierClosure*)+0xab
V [libjvm.so+0xd99deb] ParScanThreadState::trim_queues(int)+0x2eb
V [libjvm.so+0xd9a1d8] ParEvacuateFollowersClosure::do_void()+0x68
V [libjvm.so+0xd91c06] ParNewGenTask::work(unsigned int)+0x296
V [libjvm.so+0x102a166] GangWorker::loop()+0x2b6
V [libjvm.so+0xd6a798] java_start(Thread*)+0x108