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High Sierra+Python+Postgresql错误:非法指令:4

psycopg2 postgresql macos python-3.x python

William Tonkin-Howe · 技术社区 · 6 年前

我可以通过命令行连接到Postgres没有问题,但是如果我尝试使用psycopg2模块通过Python连接,我会得到下面的错误。有趣的是,我刚刚尝试与PSeqal联系。应用程序和它崩溃时出现相同的错误。

环境:

MacOS:10.13.3
Xcode 9.2
Python:3.6.4
- 连接模块:psycopg2
Postgresql:10.3

脚本:

下面是我的简单连接脚本,它试图通过Python连接到Postgresql:

def connect(self, params):
    """ Connect to the PostgreSQL database server """

    conn = None
    try:
        # connect to the PostgreSQL server
        logging.info('Connecting to the PostgreSQL database...')
        conn = psycopg2.connect(**params)

        # create a cursor
        self.cursor = conn.cursor()

        except (Exception, psycopg2.DatabaseError) as error:
            print(error)
        finally:
            if conn is not None:
                conn.close()
                logging.warning('Database connection closed.')

错误:

脚本输出:

$python3测试数据库。py公司
非法指令:4

Apple错误(部分):

Process:               Python [79534]
Path:                  /usr/local/Cellar/python3/3.6.4_2/Frameworks/Python.framework/Versions/3.6/Resources/Python.app/Contents/MacOS/Python
Identifier:            Python
Version:               3.6.4 (3.6.4)
Code Type:             X86-64 (Native)
Parent Process:        bash [657]
Responsible:           Python [79534]
User ID:               501

Date/Time:             2018-03-02 15:30:27.642 +1300
OS Version:            Mac OS X 10.13.3 (17D102)
Report Version:        12
Anonymous UUID:        xx


Time Awake Since Boot: 21000 seconds

System Integrity Protection: disabled

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes:       0x0000000000000001, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Termination Signal:    Illegal instruction: 4
Termination Reason:    Namespace SIGNAL, Code 0x4
Terminating Process:   exc handler [0]

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 
0   libpq.5.10.dylib                0x00000001118e8d27 initPQExpBuffer + 32
1   libpq.5.10.dylib                0x00000001118dba93 PQconninfoParse + 43
2   _psycopg.cpython-36m-darwin.so  0x0000000111897cf1 psyco_parse_dsn + 113
3   org.python.python               0x000000010fd4681a _PyCFunction_FastCallDict + 463
4   org.python.python               0x000000010fdaad8e call_function + 489
5   org.python.python               0x000000010fda3c43 _PyEval_EvalFrameDefault + 4811
6   org.python.python               0x000000010fdab4f0 _PyEval_EvalCodeWithName + 1719
7   org.python.python               0x000000010fda293d PyEval_EvalCodeEx + 57
8   org.python.python               0x000000010fd2ec76 function_call + 339
9   org.python.python               0x000000010fd0e9f2 PyObject_Call + 101
10  org.python.python               0x000000010fda3eac _PyEval_EvalFrameDefault + 5428
11  org.python.python               0x000000010fdab4f0 _PyEval_EvalCodeWithName + 1719
12  org.python.python               0x000000010fda293d PyEval_EvalCodeEx + 57
13  org.python.python               0x000000010fd2ec76 function_call + 339
14  org.python.python               0x000000010fd0e9f2 PyObject_Call + 101
15  org.python.python               0x000000010fda3eac _PyEval_EvalFrameDefault + 5428
16  org.python.python               0x000000010fdabe93 _PyFunction_FastCall + 121
17  org.python.python               0x000000010fdaad65 call_function + 448
18  org.python.python               0x000000010fda3c43 _PyEval_EvalFrameDefault + 4811
19  org.python.python               0x000000010fdabe93 _PyFunction_FastCall + 121
20  org.python.python               0x000000010fd0eb71 _PyObject_FastCallDict + 196
21  org.python.python               0x000000010fd0ec94 _PyObject_Call_Prepend + 156
22  org.python.python               0x000000010fd0e9f2 PyObject_Call + 101
23  org.python.python               0x000000010fd598ae slot_tp_init + 57
24  org.python.python               0x000000010fd5683c type_call + 184
25  org.python.python               0x000000010fd0eb3c _PyObject_FastCallDict + 143
26  org.python.python               0x000000010fdaad5e call_function + 441
27  org.python.python               0x000000010fda3c43 _PyEval_EvalFrameDefault + 4811
28  org.python.python               0x000000010fdabe93 _PyFunction_FastCall + 121
29  org.python.python               0x000000010fd0eb71 _PyObject_FastCallDict + 196
30  org.python.python               0x000000010fd0ec94 _PyObject_Call_Prepend + 156
31  org.python.python               0x000000010fd0e9f2 PyObject_Call + 101
32  org.python.python               0x000000010fd598ae slot_tp_init + 57
33  org.python.python               0x000000010fd5683c type_call + 184
34  org.python.python               0x000000010fd0eb3c _PyObject_FastCallDict + 143
35  org.python.python               0x000000010fdaad5e call_function + 441
36  org.python.python               0x000000010fda3c43 _PyEval_EvalFrameDefault + 4811
37  org.python.python               0x000000010fdab4f0 _PyEval_EvalCodeWithName + 1719
38  org.python.python               0x000000010fda28fe PyEval_EvalCode + 42
39  org.python.python               0x000000010fdcb24e run_mod + 54
40  org.python.python               0x000000010fdca26f PyRun_FileExFlags + 160
41  org.python.python               0x000000010fdc994c PyRun_SimpleFileExFlags + 285
42  org.python.python               0x000000010fddd770 Py_Main + 3484
43  org.python.python               0x000000010fd01e1d 0x10fd00000 + 7709
44  libdyld.dylib                   0x00007fff6c260115 start + 1

Thread 0 crashed with X86 Thread State (64-bit):
rax: 0x00007f86c3db9200  rbx: 0x00007ffedfefe3a0  rcx: 0x0000000000000100  rdx: 0x0000000000010000
rdi: 0x0000000000000b93  rsi: 0x00000000ffff0001  rbp: 0x00007ffedfefe390  rsp: 0x00007ffedfefe380
r8: 0x000000006c3db930   r9: 0x000000000000000f  r10: 0x00000000ffff0000  r11: 0x00007f86c3d00000
r12: 0x0000000110665738  r13: 0x0000000111c68510  r14: 0x0000000111cb80b0  r15: 0x00007ffedfefe3a0
rip: 0x00000001118e8d27  rfl: 0x0000000000010206  cr2: 0x00000001118ef90e

Logical CPU:     2
Error Code:      0x00000000
Trap Number:     6

到目前为止,我已经尝试了:

将Python从3.5.1升级到3.6.4
- 重建了所有相关库,包括psycopg2,以确保它们与High Sierra兼容(我希望如此)
从头开始重新安装Postgres
升级的Xcode+工具

所以我有点不知道下一步该怎么做?还有其他人碰到过这个吗?有什么指向哪里的指示吗?任何能帮助我完成这项工作的东西都将不胜感激,谢谢!

2 回复 | 直到 6 年前

William Tonkin-Howe 6 年前

因此,看起来psycopg2库是罪魁祸首,这为我解决了这个问题:

$pip3卸载psycopg2
...
已成功卸载psycopg2-binary-2.7.4

$pip3安装psycopg2二进制文件--无二进制文件:全部:
正在收集psycopg2二进制文件下载psycopg2-binary-2.7.4。焦油gz(426kB) 100%--430kB 649kB/s 正在跳过psycopg2二进制文件的bdist\u控制盘,因为它的二进制文件已被禁用。安装收集的软件包:psycopg2二进制正在运行安装程序。psycopg2二进制文件的py安装。。。完成
已成功安装psycopg2-binary-2.7.4

$python3测试。py公司
正在连接到PostgreSQL数据库。。。
一切都很好。
数据库连接已关闭。

我之所以相信,是因为我曾试图在2010年的MBP上构建psycopg2,而且它与硬件存在兼容性问题,可能是这台机器的2.66 GHz Intel Core i7处理器。

感谢@Laurenz Albe和@joop的快速回复、指点和见解,您帮助我缩小了答案的范围,我希望在这份工作期间保持稳定;)干杯

Laurenz Albe 6 年前

根据堆栈跟踪,该错误发生在PostgreSQL客户端中,在这段无害的代码中:

/*
 * initPQExpBuffer
 *
 * Initialize a PQExpBufferData struct (with previously undefined contents)
 * to describe an empty string.
 */
void
initPQExpBuffer(PQExpBuffer str)
{
    str->data = (char *) malloc(INITIAL_EXPBUFFER_SIZE);
    if (str->data == NULL)
    {
        str->data = (char *) oom_buffer;    /* see comment above */
        str->maxlen = 0;
        str->len = 0;
    }
    else
    {
        str->maxlen = INITIAL_EXPBUFFER_SIZE;
        str->len = 0;
        str->data[0] = '\0';
    }
}

我发现 this 和 this 处理类似问题的问题。

非法指令 应该意味着执行时遇到了不存在的指令代码,这可能是编译器错误,也可能意味着代码是为具有不同指令集的处理器生成的。

这个问题可能在构建PostgreSQL的过程中的某个地方。您应该向构建您使用的二进制文件的包装商投诉。