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Description
Reproducer:
deffunc():print(42 )importpdb;pdb.set_trace()func()
Crash:
@kumaraditya303 ➜ /workspaces/cpython (main ✗) $ ./python main.py>/workspaces/cpython/main.py(7)<module>()-> func()(Pdb) s--Call-->/workspaces/cpython/main.py(1)func()-> def func():(Pdb) n>/workspaces/cpython/main.py(2)func()-> print((Pdb) n>/workspaces/cpython/main.py(3)func()-> 42(Pdb) j 1>/workspaces/cpython/main.py(1)func()-> def func():(Pdb) exitTraceback (most recent call last): File "/workspaces/cpython/main.py", line 7, in <module> func() ^^^^^^ File "/workspaces/cpython/main.py", line 1, in func def func(): File "/workspaces/cpython/main.py", line 1, in func def func(): File "/workspaces/cpython/Lib/bdb.py", line 90, in trace_dispatch return self.dispatch_line(frame) ^^^^^^^^^^^^^^^^^^^^^^^^^ File "/workspaces/cpython/Lib/bdb.py", line 115, in dispatch_line if self.quitting: raise BdbQuit ^^^^^^^^^^^^^bdb.BdbQuitModules/gcmodule.c:113: gc_decref: Assertion "gc_get_refs(g) > 0" failed: refcount is too smallEnable tracemalloc to get the memory block allocation tracebackobject address : 0x7f18ff3b81d0object refcount : 2object type : 0x55cfef2a6460object type name: builtin_function_or_methodobject repr : <built-in function print>Fatal Python error: _PyObject_AssertFailed: _PyObject_AssertFailedPython runtime state: finalizing (tstate=0x000055cfef3bca48)Current thread 0x00007f18ff707280 (most recent call first): Garbage-collecting <no Python frame>Aborted (core dumped)
GDB stack trace (main)
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50#1 0x00007ffff7c71859 in __GI_abort () at abort.c:79#2 0x000055555585db52 in fatal_error_exit (status=-1) at Python/pylifecycle.c:2614#3 fatal_error (fd=2, header=header@entry=1, prefix=<optimized out>, prefix@entry=0x55555594cd70 <__func__.19026> "_PyObject_AssertFailed", msg=<optimized out>, msg@entry=0x55555594c575 "_PyObject_AssertFailed", status=status@entry=-1) at Python/pylifecycle.c:2795#4 0x000055555585dbb4 in _Py_FatalErrorFunc ( func=func@entry=0x55555594cd70 <__func__.19026> "_PyObject_AssertFailed", msg=msg@entry=0x55555594c575 "_PyObject_AssertFailed") at Python/pylifecycle.c:2811#5 0x00005555557431d2 in _PyObject_AssertFailed ( obj=obj@entry=<built-in method print of module object at remote 0x7ffff78f32f0>, expr=expr@entry=0x5555559ab18c "gc_get_refs(g) > 0", msg=msg@entry=0x55555594c5eb "refcount is too small", file=file@entry=0x5555559ab11c "Modules/gcmodule.c", line=line@entry=113, function=function@entry=0x5555559ab6c8 <__func__.18373> "gc_decref") at Objects/object.c:2360#6 0x000055555588ad50 in gc_decref (g=0x7ffff79001c0) at Modules/gcmodule.c:116#7 visit_decref (op=<built-in method print of module object at remote 0x7ffff78f32f0>, parent=0x7ffff7900ad0) at Modules/gcmodule.c:459#8 0x00005555557249a5 in dict_traverse (op=<optimized out>, visit=0x55555588ac96 <visit_decref>, arg=0x7ffff7900ad0) at Objects/dictobject.c:3547#9 0x000055555588a741 in subtract_refs ( containers=containers@entry=0x555555b869a8 <_PyRuntime+53896>) at Modules/gcmodule.c:478#10 0x000055555588be95 in deduce_unreachable (unreachable=0x7fffffffc1d0, base=0x555555b869a8 <_PyRuntime+53896>) at Modules/gcmodule.c:1100#11 gc_collect_main (tstate=tstate@entry=0x555555ba0a48 <_PyRuntime+160552>, generation=generation@entry=2, n_collected=n_collected@entry=0x7fffffffc258, n_uncollectable=n_uncollectable@entry=0x7fffffffc260, nofail=nofail@entry=0) at Modules/gcmodule.c:1226
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