[New-bugs-announce] [issue20936] test_strftime: enormous allocation, fails under Clang sanitizer

Jeffrey Walton report at bugs.python.org
Sat Mar 15 17:45:02 CET 2014 

New submission from Jeffrey Walton:

>From Python head in mercurial:

    $ hg id
    7ce22d0899e4+ tip

[118/389/1] test_strftime
==11587==WARNING: AddressSanitizer failed to allocate 0x7fffffffffffffff bytes
==11587==AddressSanitizer's allocator is terminating the process instead of returning 0
==11587==If you don't like this behavior set allocator_may_return_null=1
==11587==AddressSanitizer CHECK failed: /home/jwalton/Desktop/clang-3.4/llvm-3.4/projects/compiler-rt/lib/sanitizer_common/sanitizer_allocator.cc:149 "((0)) != (0)" (0x0, 0x0)
    #0 0x4d79df in __asan::AsanCheckFailed(char const*, int, char const*, unsigned long long, unsigned long long) /home/jwalton/Desktop/clang-3.4/llvm-3.4/projects/compiler-rt/lib/asan/asan_rtl.cc:66
    #1 0x4dd241 in __sanitizer::CheckFailed(char const*, int, char const*, unsigned long long, unsigned long long) /home/jwalton/Desktop/clang-3.4/llvm-3.4/projects/compiler-rt/lib/sanitizer_common/sanitizer_common.cc:69
    #2 0x4dbf80 in __sanitizer::AllocatorReturnNull() /home/jwalton/Desktop/clang-3.4/llvm-3.4/projects/compiler-rt/lib/sanitizer_common/sanitizer_allocator.cc:149
    #3 0x4d1a76 in malloc /home/jwalton/Desktop/clang-3.4/llvm-3.4/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:75
    #4 0x7c8140 in _buffered_init /home/jwalton/Desktop/cpython-checkout/./Modules/_io/bufferedio.c:772
    #5 0x7c6888 in bufferedreader_init /home/jwalton/Desktop/cpython-checkout/./Modules/_io/bufferedio.c:1424
    #6 0x5b06e8 in wrap_init /home/jwalton/Desktop/cpython-checkout/Objects/typeobject.c:5293
    #7 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #8 0x6642d6 in ext_do_call /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4551
    #9 0x6642d6 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2869
    #10 0x670b7a in fast_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4324
    #11 0x65fbc8 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4252
    #12 0x65fbc8 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #13 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #14 0x670cb5 in fast_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4334
    #15 0x65fbc8 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4252
    #16 0x65fbc8 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #17 0x670b7a in fast_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4324
    #18 0x65fbc8 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4252
    #19 0x65fbc8 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #20 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #21 0x84c177 in function_call /home/jwalton/Desktop/cpython-checkout/Objects/funcobject.c:632
    #22 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #23 0x6642d6 in ext_do_call /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4551
    #24 0x6642d6 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2869
    #25 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #26 0x84c177 in function_call /home/jwalton/Desktop/cpython-checkout/Objects/funcobject.c:632
    #27 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #28 0x830dcc in method_call /home/jwalton/Desktop/cpython-checkout/Objects/classobject.c:347
    #29 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #30 0x5ae10f in slot_tp_call /home/jwalton/Desktop/cpython-checkout/Objects/typeobject.c:5809
    #31 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #32 0x6653a0 in do_call /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4456
    #33 0x6653a0 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4254
    #34 0x6653a0 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #35 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #36 0x84c177 in function_call /home/jwalton/Desktop/cpython-checkout/Objects/funcobject.c:632
    #37 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #38 0x6642d6 in ext_do_call /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4551
    #39 0x6642d6 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2869
    #40 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #41 0x84c177 in function_call /home/jwalton/Desktop/cpython-checkout/Objects/funcobject.c:632
    #42 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #43 0x830dcc in method_call /home/jwalton/Desktop/cpython-checkout/Objects/classobject.c:347
    #44 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #45 0x5ae10f in slot_tp_call /home/jwalton/Desktop/cpython-checkout/Objects/typeobject.c:5809
    #46 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #47 0x6653a0 in do_call /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4456
    #48 0x6653a0 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4254
    #49 0x6653a0 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #50 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #51 0x84c177 in function_call /home/jwalton/Desktop/cpython-checkout/Objects/funcobject.c:632
    #52 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #53 0x6642d6 in ext_do_call /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4551
    #54 0x6642d6 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2869
    #55 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #56 0x84c177 in function_call /home/jwalton/Desktop/cpython-checkout/Objects/funcobject.c:632
    #57 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #58 0x830dcc in method_call /home/jwalton/Desktop/cpython-checkout/Objects/classobject.c:347
    #59 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #60 0x5ae10f in slot_tp_call /home/jwalton/Desktop/cpython-checkout/Objects/typeobject.c:5809
    #61 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #62 0x6653a0 in do_call /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4456
    #63 0x6653a0 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4254
    #64 0x6653a0 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #65 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #66 0x84c177 in function_call /home/jwalton/Desktop/cpython-checkout/Objects/funcobject.c:632
    #67 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #68 0x6642d6 in ext_do_call /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4551
    #69 0x6642d6 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2869
    #70 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #71 0x84c177 in function_call /home/jwalton/Desktop/cpython-checkout/Objects/funcobject.c:632
    #72 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #73 0x830dcc in method_call /home/jwalton/Desktop/cpython-checkout/Objects/classobject.c:347
    #74 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #75 0x5ae10f in slot_tp_call /home/jwalton/Desktop/cpython-checkout/Objects/typeobject.c:5809
    #76 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #77 0x6653a0 in do_call /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4456
    #78 0x6653a0 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4254
    #79 0x6653a0 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #80 0x670b7a in fast_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4324
    #81 0x65fbc8 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4252
    #82 0x65fbc8 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #83 0x670b7a in fast_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4324
    #84 0x65fbc8 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4252
    #85 0x65fbc8 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #86 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #87 0x670cb5 in fast_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4334
    #88 0x65fbc8 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4252
    #89 0x65fbc8 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #90 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #91 0x670cb5 in fast_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4334
    #92 0x65fbc8 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4252
    #93 0x65fbc8 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #94 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #95 0x670cb5 in fast_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4334
    #96 0x65fbc8 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4252
    #97 0x65fbc8 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #98 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #99 0x84c177 in function_call /home/jwalton/Desktop/cpython-checkout/Objects/funcobject.c:632
    #100 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #101 0x6642d6 in ext_do_call /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4551
    #102 0x6642d6 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2869
    #103 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #104 0x670cb5 in fast_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4334
    #105 0x65fbc8 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4252
    #106 0x65fbc8 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #107 0x670b7a in fast_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4324
    #108 0x65fbc8 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4252
    #109 0x65fbc8 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #110 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #111 0x6545ca in PyEval_EvalCode /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:773
    #112 0x64d74c in builtin_exec /home/jwalton/Desktop/cpython-checkout/Python/bltinmodule.c:876
    #113 0x664ceb in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4227
    #114 0x664ceb in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #115 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #116 0x670cb5 in fast_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4334
    #117 0x65fbc8 in call_function /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:4252
    #118 0x65fbc8 in PyEval_EvalFrameEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:2829
    #119 0x655a7b in PyEval_EvalCodeEx /home/jwalton/Desktop/cpython-checkout/Python/ceval.c:3578
    #120 0x84c177 in function_call /home/jwalton/Desktop/cpython-checkout/Objects/funcobject.c:632
    #121 0x4fd729 in PyObject_Call /home/jwalton/Desktop/cpython-checkout/Objects/abstract.c:2067
    #122 0x4ee527 in RunModule /home/jwalton/Desktop/cpython-checkout/Modules/main.c:209
    #123 0x4ed771 in Py_Main /home/jwalton/Desktop/cpython-checkout/Modules/main.c:693
    #124 0x4e7d54 in main /home/jwalton/Desktop/cpython-checkout/./Modules/python.c:69
    #125 0x2b55a2636eac in __libc_start_main /home/aurel32/eglibc/eglibc-2.13/csu/libc-start.c:244
    #126 0x4e7b0c in _start (/home/jwalton/Desktop/cpython-checkout/python+0x4e7b0c)

----------
components: Tests
messages: 213666
nosy: Jeffrey.Walton
priority: normal
severity: normal
status: open
title: test_strftime: enormous allocation, fails under Clang sanitizer
versions: Python 3.5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20936>
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