Running serviceability/sa/ClhsdbJstackXcompStress.java with -XX:+StressGCM on linux-aarch64 (both release and debug mode) leads to the following assertion failure:

sun.jvm.hotspot.utilities.AssertionFailure: sanity check
at jdk.hotspot.agent/sun.jvm.hotspot.utilities.Assert.that(Assert.java:32)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.RegisterMap.setLocation(RegisterMap.java:160)
at jdk.hotspot.agent/sun.jvm.hotspot.compiler.ImmutableOopMapSet.updateRegisterMap(ImmutableOopMapSet.java:303)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.aarch64.AARCH64Frame.senderForCompiledFrame(AARCH64Frame.java:407)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.aarch64.AARCH64Frame.sender(AARCH64Frame.java:289)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.Frame.sender(Frame.java:207)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.Frame.realSender(Frame.java:212)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.VFrame.sender(VFrame.java:119)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.CompiledVFrame.sender(CompiledVFrame.java:185)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.VFrame.javaSender(VFrame.java:143)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:81)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.JStack.run(JStack.java:67)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.startInternal(Tool.java:262)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.start(Tool.java:225)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.execute(Tool.java:118)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.JStack.runWithArgs(JStack.java:90)
at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.runJSTACK(SALauncher.java:300)
at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.main(SALauncher.java:483)

The failure can be reproduced deterministically on JDK 16 and 17 with the following line:

$ make run-test TEST="serviceability/sa/ClhsdbJstackXcompStress.java" TEST_VM_OPTS="-XX:+UnlockDiagnosticVMOptions -XX:+StressGCM -XX:StressSeed=2"