一键生成淘宝主图的软件,旺道seo软件技术,中国做爰网站,界面设计是做什么的文章目录 1、问题2.详细日志2.关键日志3.结论4.JDK#xff1a;bug最终bug链接#xff1a; 京东遇到过类似bug各位大佬如果有更详细的解答可以留言。 1、问题
服务不通#xff0c;接口404#xff0c;查看日志有一下截图#xff0c;还有一个更详细的日志
2.详细日志
#
#… 文章目录 1、问题2.详细日志2.关键日志3.结论4.JDKbug最终bug链接 京东遇到过类似bug各位大佬如果有更详细的解答可以留言。 1、问题
服务不通接口404查看日志有一下截图还有一个更详细的日志
2.详细日志
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc0x00007f49157f4067, pid17437, tid0x00007f48b8ffe700
#
# JRE version: Java(TM) SE Runtime Environment (8.0_92-b14) (build 1.8.0_92-b14)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.92-b14 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# V [libjvm.so0x438067] ciObjectFactory::create_new_metadata(Metadata*)0x327
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try ulimit -c unlimited before starting Java again
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#--------------- T H R E A D ---------------Current thread (0x00007f4910806800): JavaThread C1 CompilerThread3 daemon [_thread_in_vm, id17480, stack(0x00007f48b8efe000,0x00007f48b8fff000)]siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x0000000000000013Registers:
RAX0x000000000000000b, RBX0x000000000000008a, RCX0x00000037800182a0, RDX0x00007f48b8ffea20
RSP0x00007f48b8ffc300, RBP0x00007f48b8ffc370, RSI0x00007f48e0c25ce8, RDI0x00007f48e0c25ce8
R8 0x0000000000000089, R9 0x00007f491638e200, R100x0000000000000000, R110x000000377f75a290
R120x00007f48e0c25ce8, R130x00007f48a9ad7240, R140x00007f4910806800, R150x00007f48a9ad7240
RIP0x00007f49157f4067, EFLAGS0x0000000000010202, CSGSFS0x0000000000000033, ERR0x0000000000000004TRAPNO0x000000000000000eTop of Stack: (sp0x00007f48b8ffc300)
0x00007f48b8ffc300: 00007f48a8853080 00007f48b8ffc420
0x00007f48b8ffc310: 00007f48a88513d0 00007f48b8ffd9f0
0x00007f48b8ffc320: 00007f4910008660 00007f49106c4150
0x00007f48b8ffc330: 0000000000000001 00007f48b8ffc400
0x00007f48b8ffc340: 00007f4910806800 000000000000008a
0x00007f48b8ffc350: 00007f48e0c25ce8 00007f48a9ad7240
0x00007f48b8ffc360: 000000000000008a 00007f48a88c38b0
0x00007f48b8ffc370: 00007f48b8ffc3b0 00007f49157f4495
0x00007f48b8ffc380: 00007f48b8ffc3c0 0000000000000000
0x00007f48b8ffc390: 00007f48e0c25ce8 0000000000000000
0x00007f48b8ffc3a0: 00007f491633aaa0 00007f48a88c38b0
0x00007f48b8ffc3b0: 00007f48b8ffc3f0 00007f49157ec167
0x00007f48b8ffc3c0: 0000000000000010 00007f48a88c38b0
0x00007f48b8ffc3d0: 00007f48a8853260 00007f48b94c5c60
0x00007f48b8ffc3e0: 00007f48b8ffc400 00007f48b94c5b30
0x00007f48b8ffc3f0: 00007f48b8ffc530 00007f49157ec478
0x00007f48b8ffc400: 00007f48e0a801c0 00007f48a88532b0
0x00007f48b8ffc410: 00000001000ef3e0 00007f48a88532b0
0x00007f48b8ffc420: 00007f4910806800 00007f48a9ad7240
0x00007f48b8ffc430: 00007f48b8ffc4b0 00007f49157f3dd5
0x00007f48b8ffc440: 00007f48a8852f20 00007f491633aaa0
0x00007f48b8ffc450: 00007f48b8ffc510 00007f48e0bca418
0x00007f48b8ffc460: 00007f48b8ffc4e0 00007f49157e22ce
0x00007f48b8ffc470: 00007f48b8ffc500 00007f48b8ffd9f0
0x00007f48b8ffc480: 00007f48a8852fe0 000000000000006f
0x00007f48b8ffc490: 00000001000ef3e0 00007f48a9ad7240
0x00007f48b8ffc4a0: 0000000000000089 00007f48a9f10ca0
0x00007f48b8ffc4b0: 00007f48b8ffc4f0 00007f49157f44ab
0x00007f48b8ffc4c0: 00007f48b8ffc4e0 0000000000000003
0x00007f48b8ffc4d0: 00000001000ef3e0 0000000000000003
0x00007f48b8ffc4e0: 0000000000000003 00007f48a88532b0
0x00007f48b8ffc4f0: 00007f48b8ffc530 00007f49157ef062 Instructions: (pc0x00007f49157f4067)
0x00007f49157f4047: 83 c6 08 39 c7 7c e2 44 8d 48 ff 45 89 08 e9 7b
0x00007f49157f4057: fd ff ff 66 0f 1f 44 00 00 49 8b 04 24 4c 89 e7
0x00007f49157f4067: ff 50 08 84 c0 0f 84 05 fd ff ff 41 8b 44 24 08
0x00007f49157f4077: 85 c0 0f 8e f8 fc ff ff 41 f6 84 24 0e 01 00 00 Register to memory mapping:RAX0x000000000000000b is an unknown value
RBX0x000000000000008a is an unknown value
RCX0x00000037800182a0: offset 0x2182a0 in /lib64/libpthread.so.0 at 0x000000377fe00000
RDX0x00007f48b8ffea20 is pointing into the stack for thread: 0x00007f4910806800
RSP0x00007f48b8ffc300 is pointing into the stack for thread: 0x00007f4910806800
RBP0x00007f48b8ffc370 is pointing into the stack for thread: 0x00007f4910806800
RSI0x00007f48e0c25ce8 is pointing into metadata
RDI0x00007f48e0c25ce8 is pointing into metadata
R8 0x0000000000000089 is an unknown value
R9 0x00007f491638e200: offset 0xfd2200 in /opt/soft/java/jre/lib/amd64/server/libjvm.so at 0x00007f49153bc000
R100x0000000000000000 is an unknown value
R110x000000377f75a290: offset 0x15a290 in /lib64/libc.so.6 at 0x000000377f600000
R120x00007f48e0c25ce8 is pointing into metadata
R130x00007f48a9ad7240 is an unknown value
R140x00007f4910806800 is a thread
R150x00007f48a9ad7240 is an unknown valueStack: [0x00007f48b8efe000,0x00007f48b8fff000], sp0x00007f48b8ffc300, free space1016k
Native frames: (Jcompiled Java code, jinterpreted, VvVM code, Cnative code)
V [libjvm.so0x438067] ciObjectFactory::create_new_metadata(Metadata*)0x327
V [libjvm.so0x438495] ciObjectFactory::get_metadata(Metadata*)0x85
V [libjvm.so0x430167] ciSpeculativeTrapData::translate_from(ProfileData const*)0x67
V [libjvm.so0x430478] ciMethodData::load_extra_data()0xa8
V [libjvm.so0x4325e8] ciMethodData::load_data()0x268
V [libjvm.so0x424b17] ciMethod::ensure_method_data(methodHandle)0xa7
V [libjvm.so0x425d67] ciMethod::ensure_method_data()0xa7
V [libjvm.so0x370e65] GraphBuilder::try_inline_full(ciMethod*, bool, Bytecodes::Code, Instruction*)0x545
V [libjvm.so0x36d2cf] GraphBuilder::try_inline(ciMethod*, bool, Bytecodes::Code, Instruction*)0x11f
V [libjvm.so0x36e412] GraphBuilder::invoke(Bytecodes::Code)0xbc2
V [libjvm.so0x36ed8d] GraphBuilder::iterate_bytecodes_for_block(int)0x6ad
V [libjvm.so0x37091b] GraphBuilder::iterate_all_blocks(bool)0x14b
V [libjvm.so0x3712b6] GraphBuilder::try_inline_full(ciMethod*, bool, Bytecodes::Code, Instruction*)0x996
V [libjvm.so0x36d2cf] GraphBuilder::try_inline(ciMethod*, bool, Bytecodes::Code, Instruction*)0x11f
V [libjvm.so0x36e412] GraphBuilder::invoke(Bytecodes::Code)0xbc2
V [libjvm.so0x36ed8d] GraphBuilder::iterate_bytecodes_for_block(int)0x6ad
V [libjvm.so0x37091b] GraphBuilder::iterate_all_blocks(bool)0x14b
V [libjvm.so0x3712b6] GraphBuilder::try_inline_full(ciMethod*, bool, Bytecodes::Code, Instruction*)0x996
V [libjvm.so0x36d2cf] GraphBuilder::try_inline(ciMethod*, bool, Bytecodes::Code, Instruction*)0x11f
V [libjvm.so0x36e412] GraphBuilder::invoke(Bytecodes::Code)0xbc2
V [libjvm.so0x36ed8d] GraphBuilder::iterate_bytecodes_for_block(int)0x6ad
V [libjvm.so0x37091b] GraphBuilder::iterate_all_blocks(bool)0x14b
V [libjvm.so0x3712b6] GraphBuilder::try_inline_full(ciMethod*, bool, Bytecodes::Code, Instruction*)0x996
V [libjvm.so0x36d2cf] GraphBuilder::try_inline(ciMethod*, bool, Bytecodes::Code, Instruction*)0x11f
V [libjvm.so0x36e412] GraphBuilder::invoke(Bytecodes::Code)0xbc2
V [libjvm.so0x36ed8d] GraphBuilder::iterate_bytecodes_for_block(int)0x6ad
V [libjvm.so0x3708c2] GraphBuilder::iterate_all_blocks(bool)0xf2
V [libjvm.so0x3724e7] GraphBuilder::GraphBuilder(Compilation*, IRScope*)0x527
V [libjvm.so0x37a817] IRScope::IRScope(Compilation*, IRScope*, int, ciMethod*, int, bool)0x1e7
V [libjvm.so0x37a92f] IR::IR(Compilation*, ciMethod*, int)0x9f
V [libjvm.so0x358edb] Compilation::build_hir()0xdb
V [libjvm.so0x35929e] Compilation::compile_java_method()0x6e
V [libjvm.so0x3593ce] Compilation::compile_method()0x4e
V [libjvm.so0x35973e] Compilation::Compilation(AbstractCompiler*, ciEnv*, ciMethod*, int, BufferBlob*)0x25e
V [libjvm.so0x35a4e9] Compiler::compile_method(ciEnv*, ciMethod*, int)0xa9
V [libjvm.so0x4aea9a] CompileBroker::invoke_compiler_on_method(CompileTask*)0xc9a
V [libjvm.so0x4afa46] CompileBroker::compiler_thread_loop()0x5d6
V [libjvm.so0xa6cc5f] JavaThread::thread_main_inner()0xdf
V [libjvm.so0xa6cd8c] JavaThread::run()0x11c
V [libjvm.so0x91fad8] java_start(Thread*)0x108
C [libpthread.so.00x79d1]**Current CompileTask:
C1: 319967 19019 ! 3 com.mysql.jdbc.Buffer::readString (121 bytes)**--------------- P R O C E S S --------------2.关键日志
1、SIGSEGV (0xb) at pc0x00007f49157f4067, pid17437, tid0x00007f48b8ffe700中断异常信号量 2、Problematic frame: V [libjvm.so0x438067] ciObjectFactory::create_new_metadata(Metadata*)0x327表示发生的c方法 3、Current thread (0x00007f4910806800): JavaThread “C1 CompilerThread3” daemon [_thread_in_vm, id17480, stack(0x00007f48b8efe000,0x00007f48b8fff000)]详细日志中发现当前任务线程C1 CompilerThread3 4、Current CompileTask: C1: 319967 19019 ! 3 com.mysql.jdbc.Buffer::readString (121 bytes)详细日志中发现当前任务线程当前任务
3.结论
【C1编译器】通过线程【C1 CompilerThread3】JIT优化热点方法【com.mysql.jdbc.Buffer::readString】代码时在调用【libjvm.so】中的代码【ciObjectFactory::create_new_metadata】方法时【试图访问未分配给自己的内存, 或试图往没有写权限的内存地址写数据】导致的崩溃
4.JDKbug
直接去搜索关键字create_new_metadata出现一下内容
最终bug链接
https://bugs.java.com/bugdatabase/view_bug?bug_id8156137 解释 I tested with a fix for _previous_version_count, but put in an artificial delay for classes to move from the previous versions list to the deallocate list (simulating on_stack metadata), and I was able to get the same crash, so this is evidence that JDK-8164692 is a separate (but contributing) bug. I’m testing my proposed fix, which is to process previous versions in Klass::clean_weak_klass_links(). 翻译 InstanceKlass::_previous_version_count的问题可能是根本原因。 如果计数错误则ClassLoaderDataGraph::do_unloading可能会跳过调用InstanceKlass::purge_previous_versions从而允许ClassLoaderDataGraphKlassIteratorAtomic和G1ConcurrentMark看到这些临时类。 InstanceKlass::_previous_version_count计数错误的一个bug导致G1ConcurrentMark能调用临时类。
京东遇到过类似bug
链接地址https://zhuanlan.zhihu.com/p/665260001 很巧合的都是在C1编译jdbc驱动的场景出现的 Current CompileTask: C1: 319967 19019 ! 3 com.mysql.jdbc.Buffer::readString (121 bytes) 京东Current CompileTask: C2:43781461 13331 ! 4 com.mysql.cj.NativeSession::execSQL (579 bytes)
各位大佬如果有更详细的解答可以留言。
