Test /runtime/CommandLine/OptionsValidation/common fails in fastdebug, but probably many uses of -XX:+UseParallelGC -XX:ParallelGCThreads=1 will fail.

There where many different failure modes:

----------------
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/opt/jprt/T/P1/233740.sspitsyn/s/hotspot/src/share/vm/oops/klass.inline.hpp:66), pid=29120, tid=29152
# assert(check_klass_alignment(result)) failed: address not aligned: 0x00000008baadbabe

V [libjvm.so+0xf95084] VMError::report(outputStream*, bool)+0x1770
V [libjvm.so+0xf95618] VMError::report_and_die(int, char const*, char const*, std::__va_list, Thread*, unsigned char*, void*, void*, char const*, int, unsigned long)+0x140
V [libjvm.so+0xf961c8] VMError::report_and_die(Thread*, char const*, int, char const*, char const*, std::__va_list)+0x54
V [libjvm.so+0x652e08] report_vm_error(char const*, int, char const*, char const*, ...)+0xe0
V [libjvm.so+0xca2c28] VerifyOopsClosure::do_oop(oop*)+0x208
V [libjvm.so+0xc98888] nmethod::oops_do(OopClosure*, bool)+0x19c
V [libjvm.so+0xc9aa80] nmethod::verify()+0x244
V [libjvm.so+0x595718] CodeCache::gc_epilogue()+0x8c
V [libjvm.so+0xda3908] PSParallelCompact::post_compact()+0x15c
V [libjvm.so+0xda54d4] PSParallelCompact::invoke_no_policy(bool)+0x4ac
V [libjvm.so+0xda6000] PSParallelCompact::invoke(bool)+0x130
V [libjvm.so+0xf97f30] VM_ParallelGCSystemGC::doit()+0x1ac
V [libjvm.so+0xfc7e08] VM_Operation::evaluate()+0xb0
V [libjvm.so+0xfc3c2c] VMThread::evaluate_operation(VM_Operation*)+0x134
V [libjvm.so+0xfc4520] VMThread::loop()+0x48c
V [libjvm.so+0xfc477c] VMThread::run()+0xc4
V [libjvm.so+0xceb9c8] java_start(Thread*)+0x118
C [libpthread.so.0+0x7e2c] start_thread+0xb0

-------------
# Internal Error (/opt/jprt/T/P1/233740.sspitsyn/s/hotspot/src/share/vm/gc/parallel/psParallelCompact.cpp:1932), pid=26430, tid=4
# assert(cm->region_stack()->is_empty()) failed: should be empty

V [libjvm.so+0x2181d76] void VMError::report(outputStream*,bool)+0xef6
V [libjvm.so+0x2184083] void VMError::report_and_die(int,const char*,const char*,__va_list_element*,Thread*,unsigned char*,void*,void*,const char*,int,unsigned long)+0x8e3
V [libjvm.so+0x2183732] void VMError::report_and_die(Thread*,const char*,int,const char*,const char*,__va_list_element*)+0x42
V [libjvm.so+0x14e8819] void report_vm_error(const char*,int,const char*,const char*,...)+0xf9
V [libjvm.so+0x1ef8957] bool PSParallelCompact::invoke_no_policy(bool)+0xdd7
V [libjvm.so+0x1ef7abe] void PSParallelCompact::invoke(bool)+0x9e
V [libjvm.so+0x21884e8] void VM_ParallelGCSystemGC::doit()+0xe8
V [libjvm.so+0x21be999] void VM_Operation::evaluate()+0x129
V [libjvm.so+0x21bc36e] void VMThread::evaluate_operation(VM_Operation*)+0x14e
V [libjvm.so+0x21bc931] void VMThread::loop()+0x3e1
V [libjvm.so+0x21bbff7] void VMThread::run()+0x97
V [libjvm.so+0x1e1be62] java_start+0x132
C [libc.so.1+0x1251f1] _thrp_setup+0xa5
C [libc.so.1+0x125490] _lwp_start+0x0

----------------
# Internal Error (/scratch/opt/jprt/T/P1/233740.sspitsyn/s/hotspot/src/share/vm/code/debugInfo.cpp:51), pid=21966, tid=21971
# assert(o->is_oop_or_null()) failed: oop only

V [libjvm.so+0x1293aa7] VMError::report_and_die(int, char const*, char const*, char*, Thread*, unsigned char*, void*, void*, char const*, int, unsigned int)+0x137
V [libjvm.so+0x1294710] VMError::report_and_die(Thread*, char const*, int, char const*, char const*, char*)+0x30
V [libjvm.so+0x813800] report_vm_error(char const*, int, char const*, char const*, ...)+0x60
V [libjvm.so+0x81c4b2] DebugInfoReadStream::read_oop()+0x1b2
V [libjvm.so+0x81c8ce] ConstantOopReadValue::ConstantOopReadValue(DebugInfoReadStream*)+0x3e
V [libjvm.so+0x81d3d3] ScopeValue::read_from(DebugInfoReadStream*)+0x153
V [libjvm.so+0x10ebdbe] ScopeDesc::decode_scope_values(int)+0x21e
V [libjvm.so+0x10ecb92] ScopeDesc::print_on(outputStream*, PcDesc*) const+0xe2
V [libjvm.so+0x10ed135] ScopeDesc::print_on(outputStream*) const+0x15
V [libjvm.so+0x10151d2] PcDesc::print(CompiledMethod*)+0xe2
V [libjvm.so+0xf48dd8] nmethod::print_pcs()+0xd8
V [libjvm.so+0xf53674] nmethod::print_nmethod(bool)+0x164
V [libjvm.so+0xf5737f] VerifyOopsClosure::do_oop(oop*)+0x8f
V [libjvm.so+0xf4dd53] nmethod::oops_do(OopClosure*, bool)+0x273
V [libjvm.so+0xf51492] nmethod::verify()+0x262
V [libjvm.so+0x75f13c] CodeCache::gc_epilogue()+0xac
V [libjvm.so+0x1063ebc] PSParallelCompact::post_compact()+0x12c
V [libjvm.so+0x1065b53] PSParallelCompact::invoke_no_policy(bool) [clone .part.164]+0x493
V [libjvm.so+0x10668e8] PSParallelCompact::invoke(bool)+0x138
V [libjvm.so+0x1295db6] VM_ParallelGCSystemGC::doit()+0xd6
V [libjvm.so+0x12c975a] VM_Operation::evaluate()+0x9a
V [libjvm.so+0x12c4229] VMThread::evaluate_operation(VM_Operation*)+0x169
V [libjvm.so+0x12c4ba0] VMThread::loop()+0x230
V [libjvm.so+0x12c5140] VMThread::run()+0xc0
V [libjvm.so+0xfa5104] java_start(Thread*)+0x124
C [libpthread.so.0+0x6b2c] start_thread+0xcc

-----------------