JDK-8245986 : AArch64: Provide information when hitting a HaltNode
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 15
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: aarch64
  • Submitted: 2020-05-27
  • Updated: 2024-07-16
  • Resolved: 2020-05-29
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JDK 15
15 b26Fixed
Related Reports
Relates :  
JDK-8244949 - [PPC64] Reengineer assembler stop function
Relates :  
JDK-8314020 - Print instruction blocks in byte units
Relates :  
JDK-8285699 - riscv: Provide information when hitting a HaltNode
Relates :  
JDK-8230552 - Provide information when hitting a HaltNode for architectures other than x86
Description
We need to provide a halt reason when hitting a C2 HaltNode on AArch64, and we need to do so without grossly bloating the code.
Comments
URL: https://hg.openjdk.java.net/jdk/jdk/rev/cd6dce5285d7 User: aph Date: 2020-05-29 17:25:15 +0000
29-05-2020
Here is the new crash report with Andrew's patch. Compare it with previous one https://bugs.openjdk.java.net/browse/JDK-8230552?focusedCommentId=14334977&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-14334977 ,the biggest difference is that the callstack becomes much more clear. it reflects user's callstack. # # A fatal error has been detected by the Java Runtime Environment: # # Internal Error (0xe0000000), pid=38656, tid=38657 # stop: unsafe off-heap access with zero address # # JRE version: OpenJDK Runtime Environment (15.0) (slowdebug build 15-internal+0-adhoc.ubuntu.jdk) # Java VM: OpenJDK 64-Bit Server VM (slowdebug 15-internal+0-adhoc.ubuntu.jdk, compiled mode, compressed oops, g1 gc, linux-aarch64) # Problematic frame: # J 31 c2 compiler.unsafe.TestUnsafeLoadWithZeroAddress.main([Ljava/lang/String;)V (17 bytes) @ 0x0000ffff810d59a4 [0x0000ffff810d5940+0x0000000000000064] # # Core dump will be written. Default location: Core dumps may be processed with "/usr/share/apport/apport %p %s %c %d %P %E" (or dumping to /home/ubuntu/build/jdk/core.38656) # # If you would like to submit a bug report, please visit: # https://bugreport.java.com/bugreport/crash.jsp # --------------- S U M M A R Y ------------ Command Line: --add-exports=java.base/jdk.internal.misc=ALL-UNNAMED --add-opens=java.base/jdk.internal.misc=ALL-UNNAMED -XX:+PrintOptoAssembly -Xcomp -XX:CompileCommand=compileonly,compiler.unsafe.TestUnsafeLoadWithZeroAddress::* -XX:+AlwaysIncrementalInline -XX:SuppressErrorAt=/cfgnode.hpp:179 -XX:SuppressErrorAt=/cfgnode.hpp:174 -XX:-TieredCompilation -XX:-ShowMessageBoxOnError compiler.unsafe.TestUnsafeLoadWithZeroAddress Host: ip-172-31-84-186, AArch64, 64 cores, 246G, Ubuntu 18.04.3 LTS Time: Wed May 27 18:44:34 2020 UTC elapsed time: 1.455148 seconds (0d 0h 0m 1s) --------------- T H R E A D --------------- Current thread (0x0000ffff84034380): JavaThread "main" [_thread_in_Java, id=38657, stack(0x0000ffff88f26000,0x0000ffff89126000)] Stack: [0x0000ffff88f26000,0x0000ffff89126000], sp=0x0000ffff89124330, free space=2040k Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code) J 31 c2 compiler.unsafe.TestUnsafeLoadWithZeroAddress.main([Ljava/lang/String;)V (17 bytes) @ 0x0000ffff810d59a4 [0x0000ffff810d5940+0x0000000000000064] v ~StubRoutines::call_stub V [libjvm.so+0x9db0c4] JavaCalls::call_helper(JavaValue*, methodHandle const&, JavaCallArguments*, Thread*)+0x518 V [libjvm.so+0xe8ec04] os::os_exception_wrapper(void (*)(JavaValue*, methodHandle const&, JavaCallArguments*, Thread*), JavaValue*, methodHandle const&, JavaCallArguments*, Thread*)+0x34 V [libjvm.so+0x9daba0] JavaCalls::call(JavaValue*, methodHandle const&, JavaCallArguments*, Thread*)+0xa0 V [libjvm.so+0xa96f90] jni_invoke_static(JNIEnv_*, JavaValue*, _jobject*, JNICallType, _jmethodID*, JNI_ArgumentPusher*, Thread*)+0x130 V [libjvm.so+0xaad680] jni_CallStaticVoidMethod+0x37c C [libjli.so+0x4fac] JavaMain+0xb58 C [libjli.so+0xb900] ThreadJavaMain+0x28 C [libpthread.so.0+0x7088] start_thread+0xb0 siginfo: si_signo: 4 (SIGILL), si_code: 1 (ILL_ILLOPC), si_addr: 0x0000ffff810d59a4
27-05-2020