The following test failed in the JDK19 CI:

serviceability/jvmti/GetLocalVariable/GetLocalWithoutSuspendTest.java

Here's a snippet from the log file:

#section:main
----------messages:(4/284)----------
command: main -agentlib:GetLocalWithoutSuspendTest -Xbatch GetLocalWithoutSuspendTest
reason: User specified action: run main/othervm/native -agentlib:GetLocalWithoutSuspendTest -Xbatch GetLocalWithoutSuspendTest
Mode: othervm [/othervm specified]
elapsed time (seconds): 25.137
----------configuration:(0/0)----------
----------System.out:(25/1580)*----------
AGENT: Agent_OnLoad started.
AGENT: Agent_Initialize started
AGENT: Agent_Initialize finished
AGENT: VM init event
AGENT: Start new thread that performs GetLocalObject calls on a running target thread
### Java-Test: Set target thread for get local variable calls by agent.
### Java-Test: Test how many frames fit on the stack by performing recursive calls until
### Java-Test: StackOverflowError is thrown
### Java-Test: Testing with target depth: 20472
### Java-Test: Begin Test.
### Java-Test: 0 ms Iteration : 0 waitTime : 1
# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=\\os_windows.cpp:2587
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (c:\\sb\\prod\\1657141214\\workspace\\open\\src\\hotspot\\os\\windows\\os_windows.cpp:2587), pid=27992, tid=39380
# assert(!in_vm) failed: Undersized StackShadowPages
#
# JRE version: Java(TM) SE Runtime Environment (19.0+30) (fastdebug build 19-ea+30-2169)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 19-ea+30-2169, compiled mode, sharing, compressed oops, compressed class ptrs, g1 gc, windows-amd64)
# Core dump will be written. Default location: C:\\sb\\prod\\1657256586\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_hotspot_serviceability\\scratch\\3\\hs_err_pid27992.mdmp
#
# An error report file with more information is saved as:
# C:\\sb\\prod\\1657256586\\testoutput\\test-support\\jtreg_open_test_hotspot_jtreg_hotspot_serviceability\\scratch\\3\\hs_err_pid27992.log
----------System.err:(0/0)----------
----------rerun:(48/6480)*----------

Here's the crashing thread's stack:

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

Current thread (0x00000280481a01b0): JavaThread "MainThread" [_thread_in_vm, id=39380, stack(0x00000081c0500000,0x00000081c0600000)]

Stack: [0x00000081c0500000,0x00000081c0600000]

[error occurred during error reporting (printing native stack), id 0xe0000000, Internal Error (c:\sb\prod\1657141214\workspace\open\src\hotspot\os\windows\os_windows.cpp:2587)]

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
v ~RuntimeStub::resolve_static_call 0x000002803aaeb2a7
J 2752 c2 GetLocalWithoutSuspendTest.recursiveMethod(II)I (37 bytes) @ 0x000002803afcec38 [0x000002803afcebc0+0x0000000000000078]
J 2752 c2 GetLocalWithoutSuspendTest.recursiveMethod(II)I (37 bytes) @ 0x000002803afcec08 [0x000002803afcebc0+0x0000000000000048]
J 2752 c2 GetLocalWithoutSuspendTest.recursiveMethod(II)I (37 bytes) @ 0x000002803afcec08 [0x000002803afcebc0+0x0000000000000048]
J 2752 c2 GetLocalWithoutSuspendTest.recursiveMethod(II)I (37 bytes) @ 0x000002803afcec08 [0x000002803afcebc0+0x0000000000000048]
J 2752 c2 GetLocalWithoutSuspendTest.recursiveMethod(II)I (37 bytes) @ 0x000002803afcec08 [0x000002803afcebc0+0x0000000000000048]

<snip>

J 2752 c2 GetLocalWithoutSuspendTest.recursiveMethod(II)I (37 bytes) @ 0x000002803afcec08 [0x000002803afcebc0+0x0000000000000048]
J 2752 c2 GetLocalWithoutSuspendTest.recursiveMethod(II)I (37 bytes) @ 0x000002803afcec08 [0x000002803afcebc0+0x0000000000000048]
J 2752 c2 GetLocalWithoutSuspendTest.recursiveMethod(II)I (37 bytes) @ 0x000002803afcec08 [0x000002803afcebc0+0x0000000000000048]
J 2752 c2 GetLocalWithoutSuspendTest.recursiveMethod(II)I (37 bytes) @ 0x000002803afcec08 [0x000002803afcebc0+0x0000000000000048]
J 2752 c2 GetLocalWithoutSuspendTest.recursiveMethod(II)I (37 bytes) @ 0x000002803afcec08 [0x000002803afcebc0+0x0000000000000048]
j GetLocalWithoutSuspendTest.runTest()V+84
j GetLocalWithoutSuspendTest.main([Ljava/lang/String;)V+7
J 2305 c2 java.lang.invoke.LambdaForm$DMH+0x0000000801001800.invokeStatic(Ljava/lang/Object;Ljava/lang/Object;)V java.base@19-ea (14 bytes) @ 0x000002803af1f618 [0x000002803af1f5e0+0x0000000000000038]
J 2612 c2 java.lang.invoke.LambdaForm$MH+0x0000000801002c00.invoke(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object; java.base@19-ea (38 bytes) @ 0x000002803af39f54 [0x000002803af39ea0+0x00000000000000b4]
J 2627 c2 java.lang.invoke.Invokers$Holder.invokeExact_MT(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object; java.base@19-ea (24 bytes) @ 0x000002803ab5eef8 [0x000002803ab5ee80+0x0000000000000078]
j jdk.internal.reflect.DirectMethodHandleAccessor.invokeImpl(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+55 java.base@19-ea
j jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+23 java.base@19-ea
J 2255 c2 java.lang.reflect.Method.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object; java.base@19-ea (108 bytes) @ 0x000002803aef81e0 [0x000002803aef7fe0+0x0000000000000200]
j com.sun.javatest.regtest.agent.MainWrapper$MainThread.run()V+172
J 2225 c2 java.lang.Thread.run()V java.base@19-ea (19 bytes) @ 0x000002803aeda194 [0x000002803aeda140+0x0000000000000054]
v ~StubRoutines::call_stub 0x000002803a9c10a7
--------------------------------------------------------------------------------
Decoding CodeBlob, name: resolve_static_call, at [0x000002803aaeb220, 0x000002803aaeb3e0] 448 bytes
[MachCode]
  0x000002803aaeb220: 55

And the hs_err_pid file stops here... ouch.