Question

运行代码以使用gdb进行调试时出错： https://pastebin.ubuntu.com/p/PxrKVGmmTQ/

(gdb) run demo.py
Starting program: /usr/bin/python3 demo.py
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff39aa2a9 in GlobalError::PushToStack() ()
   from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.5.0

Python堆栈跟踪： https://pastebin.ubuntu.com/p/zWz5KBdhSZ/

(gdb) py-bt
Traceback (most recent call first):
  <built-in method init_config of module object at remote 0x7ffff41c70e8>
  File "/usr/lib/python3/dist-packages/apt/__init__.py", line 34, in <module>
    apt_pkg.init_config()
  <built-in method exec of module object at remote 0x7ffff7fd4638>
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 24, in <module>
    import apt
  <built-in method exec of module object at remote 0x7ffff7fd4638>
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 23, in <module>
    from apport.packaging_impl import impl as packaging
  <built-in method exec of module object at remote 0x7ffff7fd4638>
---Type <return> to continue, or q <return> to quit---

线程信息： https://pastebin.ubuntu.com/p/TYBnd3RG78/

(gdb) info threads
  Id   Target Id         Frame 
* 1    Thread 0x7ffff7fdb740 (LWP 3104) "python3" 0x00007ffff39aa2a9 in GlobalError::PushToStack() () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.5.0

python代码中的当前线程： https://pastebin.ubuntu.com/p/TjvGGvGGYG/

(gdb) py-list
  29    ProblemResolver  # pyflakes
  30    from apt.cdrom import Cdrom
  31    
  32    # init the package system, but do not re-initialize config
  33    if "APT" not in apt_pkg.config:  # type: ignore
 >34        apt_pkg.init_config()
  35    apt_pkg.init_system()
  36    
  37    __all__ = ['Cache', 'Cdrom', 'Package']

用于调试（按顺序）的GDB函数：

gdb python3

run <filename>.py

py-bt

info threads

py-list

我正在运行带有python绑定的自定义c ++库。 .so（共享库）文件正在动态链接到python程序。 python文件正在导入自定义c ++库。当我使用python3 filename.py运行python文件时，收到错误消息：Segmentation fault（核心转储），我尝试使用gdb for python调试此错误。我需要帮助来了解上述链接所指向的内容以及如何解决此问题。

调试细分故障。需要帮助

0 个答案: