New issue 2084: PyPy crash on (probably) negative index access
https://bitbucket.org/pypy/pypy/issues/2084/pypy-crash-on-probably-negative-index
Tobias Pape:
Assertion Hit in CPython:
```
Exception:
Traceback (most recent call last):
File "targetrsqueak.py", line 320, in <module>
sys.exit(f(sys.argv))
File "targetrsqueak.py", line 92, in safe_entry_point
return entry_point(argv)
File "targetrsqueak.py", line 232, in entry_point
w_result = execute_context(interp, context)
File "targetrsqueak.py", line 304, in execute_context
return interp.interpret_toplevel(s_frame.w_self())
File "/Users/tobias/dev/pypy/lang-smalltalk/spyvm/interpreter.py", line 282,
in interpret_toplevel
self.loop(w_frame)
File "/Users/tobias/dev/pypy/lang-smalltalk/spyvm/interpreter.py", line 125,
in loop
self.stack_frame(s_context, None)
File "/Users/tobias/dev/pypy/lang-smalltalk/spyvm/interpreter.py", line 150,
in stack_frame
self.loop_bytecodes(s_frame, may_context_switch)
File "/Users/tobias/dev/pypy/lang-smalltalk/spyvm/interpreter.py", line 189,
in loop_bytecodes
self.step(s_context)
File "/Users/tobias/dev/pypy/lang-smalltalk/spyvm/interpreter.py", line 223,
in step
return getattr(context, methname)(self, bytecode)
File "/Users/tobias/dev/pypy/lang-smalltalk/spyvm/interpreter_bytecodes.py",
line 35, in bytecode_implementation_wrapper
return actual_implementation_method(self, interp, current_bytecode,
*parameters)
File "/Users/tobias/dev/pypy/lang-smalltalk/spyvm/interpreter_bytecodes.py",
line 457, in returnTopFromMethodBytecode
return self._return(self.pop(), interp)
File "/Users/tobias/dev/pypy/lang-smalltalk/spyvm/storage_contexts.py", line
409, in pop
ret = self.stack_get(ptr) # you get OverflowError if the stack is empty
File "/Users/tobias/dev/pypy/lang-smalltalk/spyvm/storage_contexts.py", line
394, in stack_get
assert index0 >= 0
AssertionError
[12] >
/Users/tobias/dev/pypy/lang-smalltalk/spyvm/storage_contexts.py(394)stack_get()
-> assert index0 >= 0
(Pdb++) index0
-1
```
LLDB backtrace for Segfault with pypy (__32bit build OSX__, but also happens on
Win32)
(
Python 2.7.9 (9c4588d731b7fe0b08669bd732c2b676cb0a8233, Apr 22 2015, 12:13:28)
[PyPy 2.5.1 with GCC 4.2.1 Compatible Apple LLVM 5.1 (clang-503.0.40)]
)
````
* thread #1: tid = 0x4f719c, 0x0032e2b7
libpypy-c.dylib`pypy_g__flat_pycall__AccessDirect_None + 7, queue =
'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2,
address=0xbf7fffec)
frame #0: 0x0032e2b7 libpypy-c.dylib`pypy_g__flat_pycall__AccessDirect_None
+ 7
libpypy-c.dylib`pypy_g__flat_pycall__AccessDirect_None + 7:
-> 0x32e2b7: calll 0x32e2bc ;
pypy_g__flat_pycall__AccessDirect_None + 12
0x32e2bc: popl %edi
0x32e2bd: movl 0x40(%esp), %eax
0x32e2c1: movl 0x24(%eax), %ecx
(lldb) bt
* thread #1: tid = 0x4f719c, 0x0032e2b7
libpypy-c.dylib`pypy_g__flat_pycall__AccessDirect_None + 7, queue =
'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2,
address=0xbf7fffec)
* frame #0: 0x0032e2b7 libpypy-c.dylib`pypy_g__flat_pycall__AccessDirect_None
+ 7
frame #1: 0x0032d84e
libpypy-c.dylib`pypy_g_funccall_valuestack__AccessDirect_None + 350
frame #2: 0x0030ec38
libpypy-c.dylib`pypy_g_call_valuestack__AccessDirect_None + 552
frame #3: 0x00863f8d
libpypy-c.dylib`pypy_g_CALL_METHOD__AccessDirect_star_1 + 237
frame #4: 0x00358d54
libpypy-c.dylib`pypy_g_dispatch_bytecode__AccessDirect_None + 13668
frame #5: 0x00355408
libpypy-c.dylib`pypy_g_handle_bytecode__AccessDirect_None + 72
frame #6: 0x008004f6 libpypy-c.dylib`pypy_g_portal_3 + 118
frame #7: 0x00c735a9
libpypy-c.dylib`pypy_g_ll_portal_runner__Unsigned_Bool_pypy_interpreter + 569
frame #8: 0x0080046f libpypy-c.dylib`pypy_g_PyFrame_dispatch + 47
frame #9: 0x00349724 libpypy-c.dylib`pypy_g_PyFrame_execute_frame + 1348
frame #10: 0x00348f3a libpypy-c.dylib`pypy_g_PyFrame_run + 218
frame #11: 0x0032e564
libpypy-c.dylib`pypy_g__flat_pycall__AccessDirect_None + 692
frame #12: 0x0032d84e
libpypy-c.dylib`pypy_g_funccall_valuestack__AccessDirect_None + 350
frame #13: 0x0030ec38
libpypy-c.dylib`pypy_g_call_valuestack__AccessDirect_None + 552
frame #14: 0x00863f8d
libpypy-c.dylib`pypy_g_CALL_METHOD__AccessDirect_star_1 + 237
frame #15: 0x00358d54
libpypy-c.dylib`pypy_g_dispatch_bytecode__AccessDirect_None + 13668
frame #16: 0x00355408
libpypy-c.dylib`pypy_g_handle_bytecode__AccessDirect_None + 72
frame #17: 0x008004f6 libpypy-c.dylib`pypy_g_portal_3 + 118
frame #18: 0x00c735a9
libpypy-c.dylib`pypy_g_ll_portal_runner__Unsigned_Bool_pypy_interpreter + 569
frame #19: 0x0080046f libpypy-c.dylib`pypy_g_PyFrame_dispatch + 47
frame #20: 0x00349724 libpypy-c.dylib`pypy_g_PyFrame_execute_frame + 1348
frame #21: 0x00348f3a libpypy-c.dylib`pypy_g_PyFrame_run + 218
frame #22: 0x0032e564
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frame #23: 0x0032d84e
libpypy-c.dylib`pypy_g_funccall_valuestack__AccessDirect_None + 350
frame #24: 0x0030ec38
libpypy-c.dylib`pypy_g_call_valuestack__AccessDirect_None + 552
frame #25: 0x00863f8d
libpypy-c.dylib`pypy_g_CALL_METHOD__AccessDirect_star_1 + 237
frame #26: 0x00358d54
libpypy-c.dylib`pypy_g_dispatch_bytecode__AccessDirect_None + 13668
frame #27: 0x00355408
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frame #28: 0x008004f6 libpypy-c.dylib`pypy_g_portal_3 + 118
frame #29: 0x00c735a9
libpypy-c.dylib`pypy_g_ll_portal_runner__Unsigned_Bool_pypy_interpreter + 569
frame #30: 0x0080046f libpypy-c.dylib`pypy_g_PyFrame_dispatch + 47
frame #31: 0x00349724 libpypy-c.dylib`pypy_g_PyFrame_execute_frame + 1348
frame #32: 0x00348f3a libpypy-c.dylib`pypy_g_PyFrame_run + 218
frame #33: 0x0032e564
libpypy-c.dylib`pypy_g__flat_pycall__AccessDirect_None + 692
frame #34: 0x0032d84e
libpypy-c.dylib`pypy_g_funccall_valuestack__AccessDirect_None + 350
frame #35: 0x0030ec38
libpypy-c.dylib`pypy_g_call_valuestack__AccessDirect_None + 552
frame #36: 0x0035de8c
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frame #37: 0x0035887a
libpypy-c.dylib`pypy_g_dispatch_bytecode__AccessDirect_None + 12426
frame #38: 0x00355408
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frame #39: 0x008004f6 libpypy-c.dylib`pypy_g_portal_3 + 118
frame #40: 0x00c735a9
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frame #41: 0x0080046f libpypy-c.dylib`pypy_g_PyFrame_dispatch + 47
frame #42: 0x00349724 libpypy-c.dylib`pypy_g_PyFrame_execute_frame + 1348
frame #43: 0x00348f3a libpypy-c.dylib`pypy_g_PyFrame_run + 218
frame #44: 0x0032e564
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frame #45: 0x0032d84e
libpypy-c.dylib`pypy_g_funccall_valuestack__AccessDirect_None + 350
frame #46: 0x0030ec38
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frame #47: 0x00863f8d
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frame #48: 0x00358d54
libpypy-c.dylib`pypy_g_dispatch_bytecode__AccessDirect_None + 13668
frame #49: 0x00355408
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frame #50: 0x008004f6 libpypy-c.dylib`pypy_g_portal_3 + 118
frame #51: 0x00c735a9
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frame #52: 0x0080046f libpypy-c.dylib`pypy_g_PyFrame_dispatch + 47
frame #53: 0x00349724 libpypy-c.dylib`pypy_g_PyFrame_execute_frame + 1348
frame #54: 0x00348f3a libpypy-c.dylib`pypy_g_PyFrame_run + 218
frame #55: 0x0034175e libpypy-c.dylib`pypy_g_PyCode_funcrun + 670
frame #56: 0x00326984 libpypy-c.dylib`pypy_g_Function_call_args + 68
frame #57: 0x008645ee
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frame #58: 0x00358d54
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frame #59: 0x00355408
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frame #60: 0x008004f6 libpypy-c.dylib`pypy_g_portal_3 + 118
frame #61: 0x00c735a9
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frame #62: 0x0080046f libpypy-c.dylib`pypy_g_PyFrame_dispatch + 47
frame #63: 0x00349724 libpypy-c.dylib`pypy_g_PyFrame_execute_frame + 1348
frame #64: 0x00348f3a libpypy-c.dylib`pypy_g_PyFrame_run + 218
frame #65: 0x0032e564
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frame #67: 0x0030ec38
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frame #68: 0x00863f8d
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frame #69: 0x00358d54
libpypy-c.dylib`pypy_g_dispatch_bytecode__AccessDirect_None + 13668
frame #70: 0x00355408
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frame #71: 0x008004f6 libpypy-c.dylib`pypy_g_portal_3 + 118
frame #72: 0x00c735a9
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frame #83: 0x00c735a9
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frame #87: 0x0032e564
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frame #89: 0x0030ec38
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frame #90: 0x00863f8d
libpypy-c.dylib`pypy_g_CALL_METHOD__AccessDirect_star_1 + 237
frame #91: 0x00358d54
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frame #93: 0x008004f6 libpypy-c.dylib`pypy_g_portal_3 + 118
frame #94: 0x00c735a9
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frame #95: 0x0080046f libpypy-c.dylib`pypy_g_PyFrame_dispatch + 47
frame #96: 0x00349724 libpypy-c.dylib`pypy_g_PyFrame_execute_frame + 1348
frame #97: 0x00348f3a libpypy-c.dylib`pypy_g_PyFrame_run + 218
frame #98: 0x0032e564
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frame #100: 0x0030ec38
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frame #106: 0x0080046f libpypy-c.dylib`pypy_g_PyFrame_dispatch + 47
frame #107: 0x00349724 libpypy-c.dylib`pypy_g_PyFrame_execute_frame + 1348
frame #108: 0x00348f3a libpypy-c.dylib`pypy_g_PyFrame_run + 218
frame #109: 0x0032e564
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frame #115: 0x008004f6 libpypy-c.dylib`pypy_g_portal_3 + 118
frame #116: 0x00c735a9
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frame #117: 0x0080046f libpypy-c.dylib`pypy_g_PyFrame_dispatch + 47
frame #118: 0x00349724 libpypy-c.dylib`pypy_g_PyFrame_execute_frame + 1348
frame #119: 0x00348f3a libpypy-c.dylib`pypy_g_PyFrame_run + 218
frame #120: 0x0032e564
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frame #126: 0x008004f6 libpypy-c.dylib`pypy_g_portal_3 + 118
frame #127: 0x00c735a9
libpypy-c.dylib`pypy_g_ll_portal_runner__Unsigned_Bool_pypy_interpreter + 569
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frame #131: 0x0032e564
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frame #137: 0x008004f6 libpypy-c.dylib`pypy_g_portal_3 + 118
frame #138: 0x00c735a9
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frame #139: 0x0080046f libpypy-c.dylib`pypy_g_PyFrame_dispatch + 47
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frame #141: 0x00348f3a libpypy-c.dylib`pypy_g_PyFrame_run + 218
frame #142: 0x0034175e libpypy-c.dylib`pypy_g_PyCode_funcrun + 670
frame #143: 0x000a5fc6 libpypy-c.dylib`pypy_g_call_stub + 38
frame #144: 0x00ad8e0c libpypy-c.dylib`pypy_g_handler_inline_call_r_r + 716
frame #145: 0x00ad034a libpypy-c.dylib`pypy_g_dispatch_loop + 3050
frame #146: 0x00acf16d libpypy-c.dylib`pypy_g_BlackholeInterpreter_run + 93
frame #147: 0x00ace3e4
libpypy-c.dylib`pypy_g_BlackholeInterpreter__resume_mainloop + 100
frame #148: 0x00ace179 libpypy-c.dylib`pypy_g__run_forever + 105
frame #149: 0x00af58e9 libpypy-c.dylib`pypy_g_ResumeGuardDescr_handle_fail
+ 505
frame #150: 0x00cb7ce5 libpypy-c.dylib`pypy_g_execute_assembler__star_2_2 +
453
frame #151: 0x00cb7435 libpypy-c.dylib`pypy_g_maybe_compile_and_run__star_5
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frame #155: 0x008004f6 libpypy-c.dylib`pypy_g_portal_3 + 118
frame #156: 0x00c735a9
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frame #157: 0x00c79ca1 libpypy-c.dylib`pypy_g_handle_jitexception_3 + 97
frame #158: 0x00c79b89 libpypy-c.dylib`pypy_g_assembler_call_helper_3 + 217
````
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