kryheb <krystianheberl...@gmail.com> added the comment:
Hi vstinner, I apologize for the inaccurate code sample. Please find a simplified example without threads `inittab-bug_no-threads.c` in attachments. Please notice that __main__.py has changed, there is no infinite loop anymore. Steps to reproduce: 1. Append embedded module 2. Initialize Python from config with run_filename 3. Run main 4. Finalize 5. Repeat all above Observed behavior: The script is executed at the first iteration, but re-initialization fails with a segmentation fault: gdb) r Starting program: /home/kheb/proj/tmp/pyc/a.out [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Run Python Script >>> This is the python script Python Script completed (0) Program received signal SIGSEGV, Segmentation fault. __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:65 65 VPCMPEQ (%rdi), %ymm0, %ymm1 Missing separate debuginfos, use: dnf debuginfo-install libxcrypt-4.4.20-2.fc33.x86_64 (gdb) bt #0 __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:65 #1 0x00007ffff7d039f0 in PyUnicode_FromString ( u=0xdddddddddddddddd <error: Cannot access memory at address 0xdddddddddddddddd>) at Objects/unicodeobject.c:2309 #2 0x00007ffff7dbf049 in list_builtin_module_names () at ./Python/sysmodule.c:2056 #3 0x00007ffff7dc1777 in _PySys_InitCore (tstate=tstate@entry=0x422ac0, sysdict=sysdict@entry=0x7fffea221070) at ./Python/sysmodule.c:2813 #4 0x00007ffff7dc36ef in _PySys_Create (tstate=tstate@entry=0x422ac0, sysmod_p=sysmod_p@entry=0x7fffffffd9d8) at ./Python/sysmodule.c:3087 #5 0x00007ffff7da9b32 in pycore_interp_init (tstate=0x422ac0) at Python/pylifecycle.c:824 #6 0x00007ffff7da9c8e in pyinit_config (runtime=runtime@entry=0x7ffff7fbe820 <_PyRuntime>, tstate_p=tstate_p@entry=0x7fffffffdca8, config=config@entry=0x7fffffffdac0) at Python/pylifecycle.c:866 #7 0x00007ffff7daba3e in pyinit_core (runtime=runtime@entry=0x7ffff7fbe820 <_PyRuntime>, src_config=src_config@entry=0x7fffffffdd40, tstate_p=tstate_p@entry=0x7fffffffdca8) at Python/pylifecycle.c:1029 #8 0x00007ffff7dabb18 in Py_InitializeFromConfig (config=0x7fffffffdd40) at Python/pylifecycle.c:1214 #9 0x00000000004012d3 in main (argc=1, argv=0x7fffffffdfc8) at inittab-bug_no-threads.c:45 I hope this example helps. Best regards, Krystian ---------- Added file: https://bugs.python.org/file50125/inittab-bug_no-threads.c _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44441> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com