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Bug
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Resolution: Unresolved
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P3
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None
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26
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+ hostname -I
10.59.82.23 172.17.0.1
+ uname -a
Linux napoleon 5.15.0-157-generic #167-Ubuntu SMP Wed Sep 17 21:35:53 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
+ cat /etc/os-release
PRETTY_NAME="Ubuntu 22.04.5 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.5 LTS (Jammy Jellyfish)"
VERSION_CODENAME=jammy
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=jammy
+ free -h
total used free shared buff/cache available
Mem: 755Gi 4.6Gi 434Gi 4.0Mi 316Gi 746Gi
Swap: 0B 0B 0B
+ lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 52 bits physical, 57 bits virtual
Byte Order: Little Endian
CPU(s): 224
On-line CPU(s) list: 0-223
Vendor ID: GenuineIntel
Model name: Intel(R) Xeon(R) Platinum 8480+
CPU family: 6
Model: 143
Thread(s) per core: 2
Core(s) per socket: 56
Socket(s): 2
Stepping: 8
Frequency boost: enabled
CPU max MHz: 2001.0000
CPU min MHz: 800.0000
BogoMIPS: 4000.00
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cat_l2 cdp_l3 invpcid_single intel_ppin cdp_l2 ssbd mba ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb intel_pt avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local split_lock_detect avx_vnni avx512_bf16 wbnoinvd dtherm ida arat pln pts avx512vbmi umip pku ospke waitpkg avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg tme avx512_vpopcntdq la57 rdpid bus_lock_detect cldemote movdiri movdir64b enqcmd fsrm md_clear serialize tsxldtrk pconfig arch_lbr amx_bf16 avx512_fp16 amx_tile amx_int8 flush_l1d arch_capabilities
Virtualization: VT-x
L1d cache: 5.3 MiB (112 instances)
L1i cache: 3.5 MiB (112 instances)
L2 cache: 224 MiB (112 instances)
L3 cache: 210 MiB (2 instances)
NUMA node(s): 2
NUMA node0 CPU(s): 0-55,112-167
NUMA node1 CPU(s): 56-111,168-223
Vulnerability Gather data sampling: Not affected
Vulnerability Indirect target selection: Not affected
Vulnerability Itlb multihit: Not affected
Vulnerability L1tf: Not affected
Vulnerability Mds: Not affected
Vulnerability Meltdown: Not affected
Vulnerability Mmio stale data: Not affected
Vulnerability Reg file data sampling: Not affected
Vulnerability Retbleed: Not affected
Vulnerability Spec rstack overflow: Not affected
Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp
Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Vulnerability Spectre v2: Mitigation; Enhanced / Automatic IBRS; IBPB conditional; PBRSB-eIBRS SW sequence; BHI BHI_DIS_S
Vulnerability Srbds: Not affected
Vulnerability Tsa: Not affected
Vulnerability Tsx async abort: Not affected
+ ldd --version
ldd (Ubuntu GLIBC 2.35-0ubuntu3.11) 2.35
Copyright (C) 2022 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.
+ ulimit -a
real-time non-blocking time (microseconds, -R) unlimited
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 3094037
max locked memory (kbytes, -l) 99023700
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) unlimited
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
+ java -version
openjdk version "25.0.1-internal" 2025-10-21
OpenJDK Runtime Environment (build 25.0.1-internal-987af5af)
OpenJDK 64-Bit Server VM (build 25.0.1-internal-987af5af, mixed mode, sharing)
+ java -Xinternalversion
OpenJDK 64-Bit Server VM (25.0.1-internal-987af5af) for linux-amd64 JRE (25.0.1-internal-987af5af), built on 2025-07-23T13:16:19Z with gcc 10.2.1 20210130 (Red Hat 10.2.1-11)
+ jtreg -version
No java executable at /home/yansendao/git/jdk/build/linux-x86_64-server-fastdebug/images/jdk/bin/java
+ git remote -v
origin git@github.com:openjdk/jdk.git (fetch)
origin git@github.com:openjdk/jdk.git (push)
+ git branch- (no branch, bisect started on master)
master
+ git log -n 1
+ head -n 1
commit b7a4c9ced82717434e43b3f3a0a57083f4005f32
+ git status
HEAD detached at b7a4c9ced82
You are currently bisecting, started from branch 'master'.
(use "git bisect reset" to get back to the original branch)
nothing to commit, working tree clean
+ git diff+ hostname -I 10.59.82.23 172.17.0.1 + uname -a Linux napoleon 5.15.0-157-generic #167-Ubuntu SMP Wed Sep 17 21:35:53 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux + cat /etc/os-release PRETTY_NAME="Ubuntu 22.04.5 LTS" NAME="Ubuntu" VERSION_ID="22.04" VERSION="22.04.5 LTS (Jammy Jellyfish)" VERSION_CODENAME=jammy ID=ubuntu ID_LIKE=debian HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" UBUNTU_CODENAME=jammy + free -h total used free shared buff/cache available Mem: 755Gi 4.6Gi 434Gi 4.0Mi 316Gi 746Gi Swap: 0B 0B 0B + lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 52 bits physical, 57 bits virtual Byte Order: Little Endian CPU(s): 224 On-line CPU(s) list: 0-223 Vendor ID: GenuineIntel Model name: Intel(R) Xeon(R) Platinum 8480+ CPU family: 6 Model: 143 Thread(s) per core: 2 Core(s) per socket: 56 Socket(s): 2 Stepping: 8 Frequency boost: enabled CPU max MHz: 2001.0000 CPU min MHz: 800.0000 BogoMIPS: 4000.00 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cat_l2 cdp_l3 invpcid_single intel_ppin cdp_l2 ssbd mba ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb intel_pt avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local split_lock_detect avx_vnni avx512_bf16 wbnoinvd dtherm ida arat pln pts avx512vbmi umip pku ospke waitpkg avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg tme avx512_vpopcntdq la57 rdpid bus_lock_detect cldemote movdiri movdir64b enqcmd fsrm md_clear serialize tsxldtrk pconfig arch_lbr amx_bf16 avx512_fp16 amx_tile amx_int8 flush_l1d arch_capabilities Virtualization: VT-x L1d cache: 5.3 MiB (112 instances) L1i cache: 3.5 MiB (112 instances) L2 cache: 224 MiB (112 instances) L3 cache: 210 MiB (2 instances) NUMA node(s): 2 NUMA node0 CPU(s): 0-55,112-167 NUMA node1 CPU(s): 56-111,168-223 Vulnerability Gather data sampling: Not affected Vulnerability Indirect target selection: Not affected Vulnerability Itlb multihit: Not affected Vulnerability L1tf: Not affected Vulnerability Mds: Not affected Vulnerability Meltdown: Not affected Vulnerability Mmio stale data: Not affected Vulnerability Reg file data sampling: Not affected Vulnerability Retbleed: Not affected Vulnerability Spec rstack overflow: Not affected Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Vulnerability Spectre v2: Mitigation; Enhanced / Automatic IBRS; IBPB conditional; PBRSB-eIBRS SW sequence; BHI BHI_DIS_S Vulnerability Srbds: Not affected Vulnerability Tsa: Not affected Vulnerability Tsx async abort: Not affected + ldd --version ldd (Ubuntu GLIBC 2.35-0ubuntu3.11) 2.35 Copyright (C) 2022 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Written by Roland McGrath and Ulrich Drepper. + ulimit -a real-time non-blocking time (microseconds, -R) unlimited core file size (blocks, -c) unlimited data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 3094037 max locked memory (kbytes, -l) 99023700 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) unlimited virtual memory (kbytes, -v) unlimited file locks (-x) unlimited + java -version openjdk version "25.0.1-internal" 2025-10-21 OpenJDK Runtime Environment (build 25.0.1-internal-987af5af) OpenJDK 64-Bit Server VM (build 25.0.1-internal-987af5af, mixed mode, sharing) + java -Xinternalversion OpenJDK 64-Bit Server VM (25.0.1-internal-987af5af) for linux-amd64 JRE (25.0.1-internal-987af5af), built on 2025-07-23T13:16:19Z with gcc 10.2.1 20210130 (Red Hat 10.2.1-11) + jtreg -version No java executable at /home/yansendao/git/jdk/build/linux-x86_64-server-fastdebug/images/jdk/bin/java + git remote -v origin git@github.com:openjdk/jdk.git (fetch) origin git@github.com:openjdk/jdk.git (push) + git branch (no branch, bisect started on master) master + git log -n 1 + head -n 1 commit b7a4c9ced82717434e43b3f3a0a57083f4005f32 + git status HEAD detached at b7a4c9ced82 You are currently bisecting, started from branch 'master'. (use "git bisect reset" to get back to the original branch) nothing to commit, working tree clean + git diff - (no branch, bisect started on master)
-
generic
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linux
STDOUT:
[8.703s][info][jfr,startup] Started recording 1. No limit specified, using maxsize=250MB as default.
[8.703s][info][jfr,startup]
[8.703s][info][jfr,startup] Use jcmd 2613797 JFR.dump name=1 filename=FILEPATH to copy recording data to file.
Lost samples: 6 at 1416 start time 1761335040870
STDERR:
malloc(): invalid size (unsorted)
Test log snippet on linux-aarch64:
STDOUT:
[8.786s][info][jfr,startup] Started recording 1. No limit specified, using maxsize=250MB as default.
[8.786s][info][jfr,startup]
[8.786s][info][jfr,startup] Use jcmd 2738881 JFR.dump name=1 filename=FILEPATH to copy recording data to file.
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x0000ffff989b8360, pid=2738881, tid=2740654
#
# JRE version: OpenJDK Runtime Environment HJDK-0 (26.0) (fastdebug build 26+-cc9483b4)
# Java VM: OpenJDK 64-Bit Server VM HJDK-0 (fastdebug 26+-cc9483b4, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, linux-aarch64)
# Problematic frame:
# V [libjvm.so+0x1705360] JfrDoublyLinkedList<ObjectSample>::remove(ObjectSample*)+0x180
#
# Core dump will be written. Default location: /home/yansendao/git/jdk/build/jt-work/jtreg/test_jdk/jdk/jfr/event/profiling/TestCPUTimeSampleQueueAutoSizes/core.2738881
#
# JFR recording file will be written. Location: /home/yansendao/git/jdk/build/jt-work/jtreg/test_jdk/jdk/jfr/event/profiling/TestCPUTimeSampleQueueAutoSizes/hs_err_pid2738881.jfr
#
Unsupported internal testing APIs have been used.
- caused by
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JDK-8366240 Improve memory ordering in new CPU Time Profiler
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- Resolved
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