Java运行时环境通过项目的类检测到的致命错误

Question

我可以找到这个错误，是由项目的一个类引起的，但我显然不知道问题专家在哪里。我希望有人能帮助我。

我真的很期待帮助。非常感谢。

Java运行时环境检测到一个致命错误：

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

Current thread (0x0000000019cef000):  JavaThread "C2 CompilerThread2" 
daemon [_thread_in_native, id=25532, 
stack(0x000000001a6e0000,0x000000001a7e0000)]

siginfo: ExceptionCode=0xc0000005, reading address 0x0000000000000008

Registers:
RAX=0x0000000000000000, RBX=0x0000000000000000, RCX=0x000000001ca6b570, 
RDX=0x0000000000004000
RSP=0x000000001a7db520, RBP=0x000000001b079d30, RSI=0x000000001ca6b570, 
RDI=0x000000001a7dba60
R8 =0x0000000000000000, R9 =0x000000001e07bfc0, R10=0x000000001a7dba60, 
R11=0x000000001afe4df0
R12=0x000000001acd5a80, R13=0x000000001ce513d8, R14=0x000000001a7db608, 
R15=0x000000001a7db628
RIP=0x0000000064e7b23f, EFLAGS=0x0000000000010206

Top of Stack: (sp=0x000000001a7db520)
0x000000001a7db520:   000000001b07a038 000000001b079d30
0x000000001a7db530:   000000001dd7e290 000000001a7dba60
0x000000001a7db540:   000000001b079d30 000000001a7db678
0x000000001a7db550:   000000001a7db6d0 0000000064e7ca69
0x000000001a7db560:   000000001b07a038 00000000000003d3
0x000000001a7db570:   0000000000000001 0000000019cd9dd0
0x000000001a7db580:   000000001a7dc438 0000000064ec7490
0x000000001a7db590:   000000001d6d8500 0000000019cd9dd0
0x000000001a7db5a0:   0000000019d16cc0 000000001a7db6d0
0x000000001a7db5b0:   0000000019cd9dd0 000000000000002b
0x000000001a7db5c0:   000000001a7dba60 0000000064e7e813
0x000000001a7db5d0:   000000001a7dba60 0000000000000001
0x000000001a7db5e0:   0000000000000001 000000001a7db678
0x000000001a7db5f0:   000000001d6d8550 000000001d6e04e8
0x000000001a7db600:   0000000000247c80 0000000019cd9dd0
0x000000001a7db610:   0000000000000400 000000001b11bbf0 

Instructions: (pc=0x0000000064e7b23f)
0x0000000064e7b21f:   4c 89 64 24 50 4c 8b e0 4c 3b e8 0f 84 4f 01 00
0x0000000064e7b22f:   00 44 8b 43 28 4c 8b 8f f8 09 00 00 4b 8b 1c c1
0x0000000064e7b23f:   48 8b 43 08 48 83 38 00 75 2a 8b 57 28 0f 1f 40
0x0000000064e7b24f:   00 8b 43 28 3b c2 73 0c 8b c8 48 8b 47 30 48 8b 


Register to memory mapping:

RAX=0x0000000000000000 is an unknown value
RBX=0x0000000000000000 is an unknown value
RCX=0x000000001ca6b570 is an unknown value
RDX=0x0000000000004000 is an unknown value
RSP=0x000000001a7db520 is pointing into the stack for thread: 
0x0000000019cef000
RBP=0x000000001b079d30 is an unknown value
RSI=0x000000001ca6b570 is an unknown value
RDI=0x000000001a7dba60 is pointing into the stack for thread: 
0x0000000019cef000
R8 =0x0000000000000000 is an unknown value
R9 =0x000000001e07bfc0 is an unknown value
R10=0x000000001a7dba60 is pointing into the stack for thread: 
0x0000000019cef000
R11=0x000000001afe4df0 is an unknown value
R12=0x000000001acd5a80 is an unknown value
R13=0x000000001ce513d8 is an unknown value
R14=0x000000001a7db608 is pointing into the stack for thread: 
0x0000000019cef000
R15=0x000000001a7db628 is pointing into the stack for thread: 
0x0000000019cef000


Stack: [0x000000001a6e0000,0x000000001a7e0000],  sp=0x000000001a7db520,  
free space=1005k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native 
code)
V  [jvm.dll+0x4cb23f]
V  [jvm.dll+0x4cca69]
V  [jvm.dll+0x4ce813]
V  [jvm.dll+0x47e1e0]
V  [jvm.dll+0x47f013]
V  [jvm.dll+0x4618a2]
V  [jvm.dll+0xa6a62]
V  [jvm.dll+0xa73af]
V  [jvm.dll+0x2467ef]
V  [jvm.dll+0x29fd2a]
C  [msvcr100.dll+0x21d9f]
C  [msvcr100.dll+0x21e3b]
C  [KERNEL32.DLL+0x17bd4]
C  [ntdll.dll+0x6ced1]


Current CompileTask:
C2:   1511  309       4       
InsertionNeighborhoodLocNew::InsertionNeighborhood (2858 bytes)

for(int x=0; x<nFac; x++) {
    for(int y=0; y<nJob; y++) {

        if(ZZ[x][y][0]==0 && y!=0) {
            flag=y-1;
            ZZf[0][x]=ZZ[x][flag][nMachine-1];
            merkerZZf[0][x]=ZZ[x][flag][nMachine-1];
            break;
        }
            else{
                if(ZZ[x][y][0]==0 && y==0) {
                ZZf[0][x]=0;
                merkerZZf[0][x]=0;
                }
                    else {
                        if(ZZ[x][nJob-1][0]!=0) {
                        flag=nJob-1;
                        ZZf[0][x]=ZZ[x][flag][nMachine-1];
                        merkerZZf[0][x]=ZZ[x][flag][nMachine-1];
                        }
                    }

            }
    }
}

通过这段代码，我基本上试图区分与我所处理的问题相关的情况。我意识到由于我删除了带有“Merkerzzf”的行，所以我不会导致错误。我不知道为什么。

Answer 1

这是JVM中的一个致命错误，不是您的错。当JVM试图将insertionneighthood代码编译为本机代码时，就会发生这种情况。您可以尝试更改代码（修改结构，但保持逻辑不变），这样C2编译器（见下文）就不会遇到这种情况，但这首先不应该发生。

它看起来就是这个bug的一个例子，因为您显然有更简单的代码，所以您应该提交一个bug报告。不要丢失导致错误的当前代码。

C2编译器（除了C1)是JVM的内部优化编译器，负责分析正在运行的字节码，并为其确定最佳本机代码。它还可以扔掉以前编译的代码并重新编译它，这对性能很重要。假设（简化）您的代码从处理只有0和1的数据开始，代码被编译成高效的代码。稍后，您将获得0-1000000范围内的数据，编译后的代码并不是很有效，因此JVM将其丢弃并重新编译，以便更有效地处理这些数据。