The following test failed in the JDK14 CI:

applications/jcstress/seqcst.java

Here's the crashing thread's stack:

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

Current thread (0x00007f8818033000): JavaThread "main" [_thread_in_vm, id=17551, stack(0x00007f881ef1a000,0x00007f881f01b000)]

Stack: [0x00007f881ef1a000,0x00007f881f01b000], sp=0x00007f881f018990, free space=1018k
Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [ld-linux-x86-64.so.2+0x12c0e]
V [libjvm.so+0x167fea3] Thread::is_in_stack(unsigned char*) const+0x23
V [libjvm.so+0x31060a] constantPoolHandle::constantPoolHandle(Thread*, ConstantPool*)+0x9a
V [libjvm.so+0xd7dd5d] InterpreterRuntime::anewarray(JavaThread*, ConstantPool*, int, int)+0x8d
j sun.nio.cs.StandardCharsets$Aliases.init([Ljava/lang/Object;)V+36 java.base
j sun.util.PreHashedMap.<init>(IIII)V+38 java.base
j sun.nio.cs.StandardCharsets$Aliases.<init>()V+11 java.base
j sun.nio.cs.StandardCharsets.aliasMap()Ljava/util/Map;+14 java.base
j sun.nio.cs.StandardCharsets.canonicalize(Ljava/lang/String;)Ljava/lang/String;+1 java.base
j sun.nio.cs.StandardCharsets.lookup(Ljava/lang/String;)Ljava/nio/charset/Charset;+47 java.base
j sun.nio.cs.StandardCharsets.charsetForName(Ljava/lang/String;)Ljava/nio/charset/Charset;+6 java.base
j java.nio.charset.Charset.lookup2(Ljava/lang/String;)Ljava/nio/charset/Charset;+39 java.base
j java.nio.charset.Charset.lookup(Ljava/lang/String;)Ljava/nio/charset/Charset;+40 java.base
j java.nio.charset.Charset.isSupported(Ljava/lang/String;)Z+1 java.base
v ~StubRoutines::call_stub
V [libjvm.so+0xd8b6ec] JavaCalls::call_helper(JavaValue*, methodHandle const&, JavaCallArguments*, Thread*)+0x6ac
V [libjvm.so+0xe6d2fa] jni_invoke_static(JNIEnv_*, JavaValue*, _jobject*, JNICallType, _jmethodID*, JNI_ArgumentPusher*, Thread*) [clone .isra.164] [clone .constprop.252]+0x12a
V [libjvm.so+0xe89d90] jni_CallStaticBooleanMethodV+0x300
C [libjava.so+0x16e1a] JNU_CallStaticMethodByName+0x19a
C [libjava.so+0x16faf] jnuEncodingSupported.part.0+0x2f
C [libjava.so+0x17763] newSizedStringJava+0x83
C [libjava.so+0x11fef] Java_jdk_internal_util_SystemProps_00024Raw_platformProperties+0x5ef
j jdk.internal.util.SystemProps$Raw.platformProperties()[Ljava/lang/String;+0 java.base
j jdk.internal.util.SystemProps$Raw.<init>()V+5 java.base
j jdk.internal.util.SystemProps.initProperties()Ljava/util/Map;+4 java.base
j java.lang.System.initPhase1()V+0 java.base
v ~StubRoutines::call_stub
V [libjvm.so+0xd8b6ec] JavaCalls::call_helper(JavaValue*, methodHandle const&, JavaCallArguments*, Thread*)+0x6ac
V [libjvm.so+0xd89b0c] JavaCalls::call_static(JavaValue*, Klass*, Symbol*, Symbol*, JavaCallArguments*, Thread*)+0x19c
V [libjvm.so+0xd89c1e] JavaCalls::call_static(JavaValue*, Klass*, Symbol*, Symbol*, Thread*)+0x7e
V [libjvm.so+0x168c3b0] Threads::initialize_java_lang_classes(JavaThread*, Thread*)+0x1130
V [libjvm.so+0x168d156] Threads::create_vm(JavaVMInitArgs*, bool*)+0x496
V [libjvm.so+0xea5218] JNI_CreateJavaVM+0x98
C [libjli.so+0x406f] JavaMain+0x7f
C [libjli.so+0x8079] ThreadJavaMain+0x9

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j sun.nio.cs.StandardCharsets$Aliases.init([Ljava/lang/Object;)V+36 java.base
j sun.util.PreHashedMap.<init>(IIII)V+38 java.base
j sun.nio.cs.StandardCharsets$Aliases.<init>()V+11 java.base
j sun.nio.cs.StandardCharsets.aliasMap()Ljava/util/Map;+14 java.base
j sun.nio.cs.StandardCharsets.canonicalize(Ljava/lang/String;)Ljava/lang/String;+1 java.base
j sun.nio.cs.StandardCharsets.lookup(Ljava/lang/String;)Ljava/nio/charset/Charset;+47 java.base
j sun.nio.cs.StandardCharsets.charsetForName(Ljava/lang/String;)Ljava/nio/charset/Charset;+6 java.base
j java.nio.charset.Charset.lookup2(Ljava/lang/String;)Ljava/nio/charset/Charset;+39 java.base
j java.nio.charset.Charset.lookup(Ljava/lang/String;)Ljava/nio/charset/Charset;+40 java.base
j java.nio.charset.Charset.isSupported(Ljava/lang/String;)Z+1 java.base
v ~StubRoutines::call_stub
j jdk.internal.util.SystemProps$Raw.platformProperties()[Ljava/lang/String;+0 java.base
j jdk.internal.util.SystemProps$Raw.<init>()V+5 java.base
j jdk.internal.util.SystemProps.initProperties()Ljava/util/Map;+4 java.base
j java.lang.System.initPhase1()V+0 java.base
v ~StubRoutines::call_stub

siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x000000007d7f1bc0

Starting this bug in hotspot/runtime for initial triage since we
crashed in a call to Thread::is_in_stack().