JDK-8245877 : assert(_value != __null) failed: resolving NULL _value in JvmtiExport::post_compiled_method_load
  • Type: Bug
  • Component: hotspot
  • Sub-Component: jvmti
  • Affected Version: 8,11.0.20,15,17,18
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2020-05-27
  • Updated: 2024-05-15
  • Resolved: 2021-06-30
The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

To download the current JDK release, click here.
JDK 17 JDK 18
17.0.8Fixed 18 b04Fixed
Related Reports
Duplicate :  
JDK-8181110 - jvmti/hotswap test crashes in Method::checked_resolve_jmethod_id(_jmethodID*)
Duplicate :  
JDK-8268524 - nmethod::post_compiled_method_load_event racingly called on zombie
Duplicate :  
JDK-8227410 - jvmti/scenarios/hotswap/HS101/hs101t005 crashes with SIGSEGV
Relates :  
JDK-8244660 - Code cache sweeper heuristics is broken
Relates :  
JDK-8246442 - nmethod::can_convert_to_zombie() asserts when not called by the sweeper
Relates :  
JDK-8181110 - jvmti/hotswap test crashes in Method::checked_resolve_jmethod_id(_jmethodID*)
Sub Tasks
JDK-8268630 :  
ProblemList serviceability/jvmti/CompiledMethodLoad/Zombie.java on linux-aarch64 - Resolved
Description
Test serviceability/jvmti/CompiledMethodLoad/Zombie.java failed once with 

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  Internal Error (/opt/mach5/mesos/work_dir/slaves/805146e6-8fdb-4552-bf9e-385b73cf7129-S481/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/d7875b72-18cd-405a-ad0e-c6e8d97a4b4d/runs/2d893a8b-442c-41d2-a13f-7a4e4b936429/workspace/open/src/hotspot/share/runtime/handles.hpp:170), pid=31732, tid=31794
#  assert(_value != __null) failed: resolving NULL _value
#
# JRE version: Java(TM) SE Runtime Environment (15.0+24) (fastdebug build 15-ea+24-1168)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 15-ea+24-1168, compiled mode, sharing, tiered, compressed oops, g1 gc, linux-amd64)
# Problematic frame:
# V  [libjvm.so+0x1073d64]  JvmtiExport::post_compiled_method_load(JvmtiEnv*, nmethod*)+0x374
#
# Core dump will be written. Default location: Core dumps may be processed with "/opt/core.sh %p" (or dumping to /opt/mach5/mesos/work_dir/slaves/805146e6-8fdb-4552-bf9e-385b73cf7129-S355/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/7fd51dbc-c901-4e7b-bc5b-dc3b28f3a43e/runs/0ef35010-c05b-4b00-ace4-861c0685c381/testoutput/test-support/jtreg_open_test_hotspot_jtreg_tier1_serviceability/scratch/3/core.31732)
#
# 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: -Dtest.class.path.prefix=/opt/mach5/mesos/work_dir/slaves/805146e6-8fdb-4552-bf9e-385b73cf7129-S355/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/7fd51dbc-c901-4e7b-bc5b-dc3b28f3a43e/runs/0ef35010-c05b-4b00-ace4-861c0685c381/testoutput/test-support/jtreg_open_test_hotspot_jtreg_tier1_serviceability/classes/0/serviceability/jvmti/CompiledMethodLoad/Zombie.d:/opt/mach5/mesos/work_dir/jib-master/install/jdk-15+24-1168/src.full/open/test/hotspot/jtreg/serviceability/jvmti/CompiledMethodLoad -Dtest.file=/opt/mach5/mesos/work_dir/jib-master/install/jdk-15+24-1168/src.full/open/test/hotspot/jtreg/serviceability/jvmti/CompiledMethodLoad/Zombie.java -Dtest.src=/opt/mach5/mesos/work_dir/jib-master/install/jdk-15+24-1168/src.full/open/test/hotspot/jtreg/serviceability/jvmti/CompiledMethodLoad -Dtest.src.path=/opt/mach5/mesos/work_dir/jib-master/install/jdk-15+24-1168/src.full/open/test/hotspot/jtreg/serviceability/jvmti/CompiledMethodLoad -Dtest.classes=/opt/mach5/mesos/work_dir/slaves/805146e6-8fdb-4552-bf9e-385b73cf7129-S355/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/7fd51dbc-c901-4e7b-bc5b-dc3b28f3a43e/runs/0ef35010-c05b-4b00-ace4-861c0685c381/testoutput/test-support/jtreg_open_test_hotspot_jtreg_tier1_serviceability/classes/0/serviceability/jvmti/CompiledMethodLoad/Zombie.d -Dtest.class.path=/opt/mach5/mesos/work_dir/slaves/805146e6-8fdb-4552-bf9e-385b73cf7129-S355/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/7fd51dbc-c901-4e7b-bc5b-dc3b28f3a43e/runs/0ef35010-c05b-4b00-ace4-861c0685c381/testoutput/test-support/jtreg_open_test_hotspot_jtreg_tier1_serviceability/classes/0/serviceability/jvmti/CompiledMethodLoad/Zombie.d -Dtest.vm.opts=-XX:MaxRAMPercentage=6 -Dtest.tool.vm.opts=-J-XX:MaxRAMPercentage=6 -Dtest.compiler.opts= -Dtest.java.opts= -Dtest.jdk=/opt/mach5/mesos/work_dir/jib-master/install/jdk-15+24-1168/linux-x64-debug.jdk/jdk-15/fastdebug -Dcompile.jdk=/opt/mach5/mesos/work_dir/jib-master/install/jdk-15+24-1168/linux-x64-debug.jdk/jdk-15/fastdebug -Dtest.timeout.factor=4.0 -Dtest.root=/opt/mach5/mesos/work_dir/jib-master/install/jdk-15+24-1168/src.full/open/test/hotspot/jtreg -Dtest.nativepath=/opt/mach5/mesos/work_dir/jib-master/install/jdk-15+24-1168/linux-x64-debug.test/hotspot/jtreg/native -XX:MaxRAMPercentage=6 -Djava.library.path=/opt/mach5/mesos/work_dir/jib-master/install/jdk-15+24-1168/linux-x64-debug.test/hotspot/jtreg/native -agentlib:CompiledZombie -Xcomp -XX:ReservedCodeCacheSize=20m com.sun.javatest.regtest.agent.MainWrapper /opt/mach5/mesos/work_dir/slaves/805146e6-8fdb-4552-bf9e-385b73cf7129-S355/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/7fd51dbc-c901-4e7b-bc5b-dc3b28f3a43e/runs/0ef35010-c05b-4b00-ace4-861c0685c381/testoutput/test-support/jtreg_open_test_hotspot_jtreg_tier1_serviceability/serviceability/jvmti/CompiledMethodLoad/Zombie.d/main.0.jta

Host: Intel(R) Xeon(R) Platinum 8167M CPU @ 2.00GHz, 8 cores, 58G, Oracle Linux Server release 7.8
Time: Sat May 23 16:31:06 2020 UTC elapsed time: 2.619168 seconds (0d 0h 0m 2s)

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

Current thread (0x00007fbb58469910):  JavaThread "Thread-0" daemon [_thread_in_vm, id=31794, stack(0x00007fbb0feff000,0x00007fbb10000000)]

Stack: [0x00007fbb0feff000,0x00007fbb10000000],  sp=0x00007fbb0fffea30,  free space=1022k
Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.so+0x1073d64]  JvmtiExport::post_compiled_method_load(JvmtiEnv*, nmethod*)+0x374
V  [libjvm.so+0x10806bc]  JvmtiDeferredEventQueue::post(JvmtiEnv*)+0xcc
V  [libjvm.so+0x10abf0a]  JvmtiThreadState::post_events(JvmtiEnv*)+0x1a
V  [libjvm.so+0xfc7154]  JvmtiCodeBlobEvents::generate_compiled_method_load_events(JvmtiEnv*)+0x2e4
V  [libjvm.so+0xfcce6b]  jvmti_GenerateEvents+0x2ab
C  [libCompiledZombie.so+0x87b]  GenerateEventsThread+0x4b
V  [libjvm.so+0x107c564]  JvmtiAgentThread::call_start_function()+0x1d4
V  [libjvm.so+0x16a8976]  JavaThread::thread_main_inner()+0x226
V  [libjvm.so+0x16ae810]  Thread::call_run()+0x100
V  [libjvm.so+0x13b2426]  thread_native_entry(Thread*)+0x116

Register to memory mapping:

RAX=0x00007fbb61b61000 points into unknown readable memory: 58 00 00 00 00 00 00 00
RBX=0x00007fbb58023d70 points into unknown readable memory: d8 71 e2 60 bb 7f 00 00
RCX=0x00007fbb60adbb9a: <offset 0x0000000001a0fb9a> in /opt/mach5/mesos/work_dir/jib-master/install/jdk-15+24-1168/linux-x64-debug.jdk/jdk-15/fastdebug/lib/server/libjvm.so at 0x00007fbb5f0cc000
RDX=0x00007fbb60946d08: <offset 0x000000000187ad08> in /opt/mach5/mesos/work_dir/jib-master/install/jdk-15+24-1168/linux-x64-debug.jdk/jdk-15/fastdebug/lib/server/libjvm.so at 0x00007fbb5f0cc000
RSP=0x00007fbb0fffea30 is pointing into the stack for thread: 0x00007fbb58469910
RBP=0x00007fbb0fffebf0 is pointing into the stack for thread: 0x00007fbb58469910
RSI=0x00000000000000aa is an unknown value
RDI=0x00007fbb60946d28: <offset 0x000000000187ad28> in /opt/mach5/mesos/work_dir/jib-master/install/jdk-15+24-1168/linux-x64-debug.jdk/jdk-15/fastdebug/lib/server/libjvm.so at 0x00007fbb5f0cc000
R8 =0x0000000000003ac9 is an unknown value
R9 =0x00007fbb5d28dfa5 is at entry_point+805 in (nmethod*)0x00007fbb5d28da90
R10=0x000000000000003d is an unknown value
R11=0x0000000000000164 is an unknown value
R12=0x00007fbb5d28da90 is at entry_point+-496 in (nmethod*)0x00007fbb5d28da90
R13=0x00007fbb58469910 is a thread
R14=0x00007fbb0fffeb30 is pointing into the stack for thread: 0x00007fbb58469910
R15=0x00007fbb0fffead0 is pointing into the stack for thread: 0x00007fbb58469910


Registers:
RAX=0x00007fbb61b61000, RBX=0x00007fbb58023d70, RCX=0x00007fbb60adbb9a, RDX=0x00007fbb60946d08
RSP=0x00007fbb0fffea30, RBP=0x00007fbb0fffebf0, RSI=0x00000000000000aa, RDI=0x00007fbb60946d28
R8 =0x0000000000003ac9, R9 =0x00007fbb5d28dfa5, R10=0x000000000000003d, R11=0x0000000000000164
R12=0x00007fbb5d28da90, R13=0x00007fbb58469910, R14=0x00007fbb0fffeb30, R15=0x00007fbb0fffead0
RIP=0x00007fbb6013fd64, EFLAGS=0x0000000000010246, CSGSFS=0x002b000000000033, ERR=0x0000000000000006
  TRAPNO=0x000000000000000e

Top of Stack: (sp=0x00007fbb0fffea30)
0x00007fbb0fffea30:   00007fbb0fffea90 00007fbb0fffea50
0x00007fbb0fffea40:   00007fbb1c000fa0 00007fbb61b5c820
0x00007fbb0fffea50:   00007fbb58469910 00007fbb58469ec0
0x00007fbb0fffea60:   00007fbb58469f40 00007fbb58469f60 

Instructions: (pc=0x00007fbb6013fd64)
0x00007fbb6013fc64:   ff ff 0f 84 a1 00 00 00 49 8b 84 24 88 00 00 00
0x00007fbb6013fc74:   48 8d 0d af d1 9a 00 48 89 ca 48 85 c0 74 55 48
0x00007fbb6013fc84:   8b 40 10 48 89 8d 50 fe ff ff 0f b7 70 2a 48 8b
0x00007fbb6013fc94:   78 08 e8 25 42 76 ff 48 89 c7 e8 4d 40 5a 00 49
0x00007fbb6013fca4:   8b bc 24 88 00 00 00 48 8b 95 50 fe ff ff 48 89
0x00007fbb6013fcb4:   c1 48 85 ff 74 1e 48 89 85 50 fe ff ff e8 5a 72
0x00007fbb6013fcc4:   23 00 48 89 c7 e8 22 40 5a 00 48 8b 8d 50 fe ff
0x00007fbb6013fcd4:   ff 48 89 c2 4c 89 ef 48 89 8d 48 fe ff ff 48 89
0x00007fbb6013fce4:   95 50 fe ff ff e8 02 83 03 00 48 8b 8d 48 fe ff
0x00007fbb6013fcf4:   ff 48 8b 95 50 fe ff ff 48 8d 3d 25 64 90 00 48
0x00007fbb6013fd04:   89 c6 31 c0 e8 53 eb fc ff 4c 89 f7 4c 89 bd 40
0x00007fbb6013fd14:   ff ff ff e8 d4 0c 6a ff e9 47 fd ff ff 0f 1f 80
0x00007fbb6013fd24:   00 00 00 00 4c 89 e7 ff d0 49 8b 54 24 20 e9 09
0x00007fbb6013fd34:   fe ff ff 66 0f 1f 84 00 00 00 00 00 48 8d 05 71
0x00007fbb6013fd44:   e0 cf 00 48 8d 3d da 6f 80 00 48 8d 0d 45 be 99
0x00007fbb6013fd54:   00 be aa 00 00 00 48 8d 15 a7 6f 80 00 48 8b 00
0x00007fbb6013fd64:   c6 00 58 31 c0 e8 92 50 8f ff e8 4d 35 33 00 48
0x00007fbb6013fd74:   8b bd 48 ff ff ff e9 6d fd ff ff 90 55 48 89 e5
0x00007fbb6013fd84:   41 56 41 55 41 54 49 89 fc 53 48 83 ec 40 48 8b
0x00007fbb6013fd94:   07 ff 90 20 02 00 00 84 c0 0f 85 ad 00 00 00 48
0x00007fbb6013fda4:   8d 05 16 1d d1 00 83 38 01 0f 8e 8d 00 00 00 e8
0x00007fbb6013fdb4:   08 11 de ff 4c 8d 75 a0 49 89 c5 48 8d 05 5a 20
0x00007fbb6013fdc4:   db 00 f6 40 44 20 0f 85 c0 00 00 00 4c 89 f7 e8
0x00007fbb6013fdd4:   08 ae fe ff 48 8d 05 01 2b db 00 48 8b 18 48 85
0x00007fbb6013fde4:   db 74 1d 66 0f 1f 84 00 00 00 00 00 48 89 df 4c
0x00007fbb6013fdf4:   89 e6 e8 f5 fb ff ff 48 8b 5b 18 48 85 db 75 ec
0x00007fbb6013fe04:   48 8d 05 ad 74 ce 00 80 7d a8 00 48 89 45 a0 74
0x00007fbb6013fe14:   2b 66 48 8d 3d bb 96 cf 00 66 66 48 e8 5b 51 1f
0x00007fbb6013fe24:   ff 48 8b 18 48 85 db 0f 84 ae 00 00 00 8b 83 00
0x00007fbb6013fe34:   03 00 00 83 e8 01 89 83 00 03 00 00 48 83 c4 40
0x00007fbb6013fe44:   5b 41 5c 41 5d 41 5e 5d c3 0f 1f 00 48 8d 05 61
0x00007fbb6013fe54:   df cf 00 48 8d 0d fa 62 90 00 48 8d 15 1b 63 90 


Stack slot to memory mapping:
stack at sp + 0 slots: 0x00007fbb0fffea90 is pointing into the stack for thread: 0x00007fbb58469910
stack at sp + 1 slots: 0x00007fbb0fffea50 is pointing into the stack for thread: 0x00007fbb58469910
stack at sp + 2 slots: 0x00007fbb1c000fa0 points into unknown readable memory: 02 00 00 00 01 00 00 00
stack at sp + 3 slots: 0x00007fbb61b5c820: CompiledMethodLoad+0x0000000000000000 in /opt/mach5/mesos/work_dir/jib-master/install/jdk-15+24-1168/linux-x64-debug.test/hotspot/jtreg/native/libCompiledZombie.so at 0x00007fbb61b5c000
stack at sp + 4 slots: 0x00007fbb58469910 is a thread
stack at sp + 5 slots: 0x00007fbb58469ec0 points into unknown readable memory: 50 4e e3 60 bb 7f 00 00
stack at sp + 6 slots: 0x00007fbb58469f40 points into unknown readable memory: 68 ee de 60 bb 7f 00 00
stack at sp + 7 slots: 0x00007fbb58469f60 points into unknown readable memory: bc bc bc bc bc bc bc bc
Comments
A pull request was submitted for review. URL: https://git.openjdk.org/jdk17u-dev/pull/1227 Date: 2023-03-29 03:50:03 +0000
04-04-2023
Fix Request 17u This issue is affecting also JDK 17 but the fix was not backported yet. It is causing spurious crashes eg. in profilers using JVMTI. The patch applies cleanly and tier1, tier2 and jdk_svc tests are passing. PR: https://github.com/openjdk/jdk17u-dev/pull/1227
04-04-2023
Changeset: b969136b Author: Leonid Mesnik <lmesnik@openjdk.org> Date: 2021-06-30 02:05:25 +0000 URL: https://git.openjdk.java.net/jdk/commit/b969136b9fcf5f977ebe466f5f9de5c520413e84
30-06-2021
The bug is still reproduced after https://bugs.openjdk.java.net/browse/JDK-8268524 is fixed. There are more places where nmethod might become a zombie.
26-06-2021
Closing as a duplicate.
22-06-2021
Reporting Compiled code load events holds the CodeCache_lock to block out the sweeper while putting the nmethods on the JVMTI thread stack, but the fix for JDK-8244660 removes the CodeCache_lock from the sweeper. So an nmethod can be added to the jvmti thread without having its traversal mark updated.
21-06-2021
Reproduced 1-2 times per 2000 runs. The issue is that nm->method() == NULL in the following method: "void JvmtiExport::post_compiled_method_load(JvmtiEnv* env, nmethod *nm)" happened while executing only from "void JvmtiDeferredEvent::post_compiled_method_load_event(JvmtiEnv* env) { ... }"
04-06-2021
Spotted in my nightly build-and-test on my MBP13: $ unzip -l 8245877.test_failures.2021-04-14-002628.zip Archive: 8245877.test_failures.2021-04-14-002628.zip Length Date Time Name --------- ---------- ----- ---- 0 04-14-2021 10:25 test_failures.2021-04-14-002628/ 69458 04-14-2021 10:25 test_failures.2021-04-14-002628/hs_err_pid66002.log 14708 04-14-2021 05:53 test_failures.2021-04-14-002628/Zombie.jtr.fastdebug --------- ------- 84166 3 files
14-04-2021
I can not reproduce this so far with hundreds of mach5 test runs. Moving this issue to 16 as, at least, it is very rarely reproducible.
09-06-2020
Assigned to myself for initial evaluation.
02-06-2020
Bumped from P4 to P2 since this failure has been spotted in Tier1 testing. Here's a snippet from the log file: #section:main ----------messages:(4/272)---------- command: main -agentlib:CompiledZombie -Xcomp -XX:ReservedCodeCacheSize=20m Zombie reason: User specified action: run main/othervm/native -agentlib:CompiledZombie -Xcomp -XX:ReservedCodeCacheSize=20m Zombie Mode: othervm [/othervm specified] elapsed time (seconds): 16.6 ----------configuration:(0/0)---------- ----------System.out:(44/3229)---------- # To suppress the following error report, specify this argument # after -XX: or in .hotspotrc: SuppressErrorAt=/handles.hpp:170 # # A fatal error has been detected by the Java Runtime Environment: # # Internal Error (/opt/mach5/mesos/work_dir/slaves/805146e6-8fdb-4552-bf9e-385b73cf7129-S391/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/03a2e961-49a0-42e7-8129-386192e92200/runs/7d8a1332-c838-4459-b774-885a9ee48683/workspace/open/src/hotspot/share/runtime/handles.hpp:170), pid=29445, tid=29528 # assert(_value != __null) failed: resolving NULL _value # # JRE version: Java(TM) SE Runtime Environment (15.0+26) (fastdebug build 15-ea+26-1272) # Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 15-ea+26-1272, compiled mode, sharing, tiered, compressed oops, g1 gc, linux-amd64) # Problematic frame: # V [libjvm.so+0x1068f54] JvmtiExport::post_compiled_method_load(JvmtiEnv*, nmethod*)+0x344 # # Core dump will be written. Default location: Core dumps may be processed with "/opt/core.sh %p" (or dumping to /opt/mach5/mesos/work_dir/slaves/805146e6-8fdb-4552-bf9e-385b73cf7129-S260/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/cdef71ab-9e18-4b5e-85f8-e0f25395d2e4/runs/a01e244b-228d-4843-90ce-d3b9d77f0da1/testoutput/test-support/jtreg_open_test_hotspot_jtreg_tier1_serviceability/scratch/0/core.29445) # # An error report file with more information is saved as: # /opt/mach5/mesos/work_dir/slaves/805146e6-8fdb-4552-bf9e-385b73cf7129-S260/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/cdef71ab-9e18-4b5e-85f8-e0f25395d2e4/runs/a01e244b-228d-4843-90ce-d3b9d77f0da1/testoutput/test-support/jtreg_open_test_hotspot_jtreg_tier1_serviceability/scratch/0/hs_err_pid29445.log Compiled method (c1) 5553 905 2 (method) total in heap [0x00007f4868885b90,0x00007f4868888300] = 10096 relocation [0x00007f4868885d08,0x00007f48688861f0] = 1256 main code [0x00007f4868886200,0x00007f4868887200] = 4096 stub code [0x00007f4868887200,0x00007f4868887368] = 360 metadata [0x00007f4868887368,0x00007f48688873f0] = 136 scopes data [0x00007f48688873f0,0x00007f4868887850] = 1120 scopes pcs [0x00007f4868887850,0x00007f48688880a0] = 2128 dependencies [0x00007f48688880a0,0x00007f48688880c8] = 40 handler table [0x00007f48688880c8,0x00007f4868888260] = 408 nul chk table [0x00007f4868888260,0x00007f4868888300] = 160 Compiled method (c1) 5553 905 2 (method) total in heap [0x00007f4868885b90,0x00007f4868888300] = 10096 relocation [0x00007f4868885d08,0x00007f48688861f0] = 1256 main code [0x00007f4868886200,0x00007f4868887200] = 4096 stub code [0x00007f4868887200,0x00007f4868887368] = 360 metadata [0x00007f4868887368,0x00007f48688873f0] = 136 scopes data [0x00007f48688873f0,0x00007f4868887850] = 1120 scopes pcs [0x00007f4868887850,0x00007f48688880a0] = 2128 dependencies [0x00007f48688880a0,0x00007f48688880c8] = 40 handler table [0x00007f48688880c8,0x00007f4868888260] = 408 nul chk table [0x00007f4868888260,0x00007f4868888300] = 160 # # If you would like to submit a bug report, please visit: # https://bugreport.java.com/bugreport/crash.jsp # Generated 245 events ----------System.err:(0/0)---------- ----------rerun:(35/5105)*---------- Here's the crashing thread's stack: --------------- T H R E A D --------------- Current thread (0x00007f4864464c90): JavaThread "Thread-0" daemon [_thread_in_vm, id=29528, stack(0x00007f483b5d9000,0x00007f483b6da000)] Stack: [0x00007f483b5d9000,0x00007f483b6da000], sp=0x00007f483b6d8a30, free space=1022k Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0x1068f54] JvmtiExport::post_compiled_method_load(JvmtiEnv*, nmethod*)+0x344 V [libjvm.so+0x107561c] JvmtiDeferredEventQueue::post(JvmtiEnv*)+0xcc V [libjvm.so+0x10a080a] JvmtiThreadState::post_events(JvmtiEnv*)+0x1a V [libjvm.so+0xfbe334] JvmtiCodeBlobEvents::generate_compiled_method_load_events(JvmtiEnv*)+0x2e4 V [libjvm.so+0xfc404b] jvmti_GenerateEvents+0x2ab C [libCompiledZombie.so+0x87b] GenerateEventsThread+0x4b V [libjvm.so+0x10715f4] JvmtiAgentThread::call_start_function()+0x1d4 V [libjvm.so+0x169af1c] JavaThread::thread_main_inner()+0x21c V [libjvm.so+0x16a0d40] Thread::call_run()+0x100 V [libjvm.so+0x13a6346] thread_native_entry(Thread*)+0x116
02-06-2020