[issue24768] Bytearray double free or corruption

2015-07-31 Thread Martin Panter 

Martin Panter added the comment:

Ah yes, I was confused. The bug fix isn’t actually in 3.4.3.

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[issue24768] Bytearray double free or corruption

2015-07-31 Thread pidpawel 

New submission from pidpawel:

I've managed to isolate some code whish results in core dump/heap corruption. 
I've tested it on Python 3.4 and 2.7. On 2.7 works fine, on 3.4.3 bug exists.

Example backtraces:

⌠ aqua ~ Error!
⌡ %pidpawel time ./deltest.py
*** Error in `python3': malloc(): memory corruption: 0x01ef0940 ***

Then process hangs, or:

⌠ aqua ~ Error! 
⌡ %pidpawel time ./deltest.py
*** Error in `python3': double free or corruption (!prev): 0x009a7370 
***
=== Backtrace: =
/lib64/libc.so.6(+0x7233b)[0x7f90baca633b]
/lib64/libc.so.6(+0x7780e)[0x7f90bacab80e]
/lib64/libc.so.6(+0x77ffb)[0x7f90bacabffb]
/usr/lib64/libpython3.4.so.1.0(PyByteArray_Resize+0xd2)[0x7f90bb256c22]
/usr/lib64/libpython3.4.so.1.0(+0x6cc82)[0x7f90bb257c82]
/usr/lib64/libpython3.4.so.1.0(+0x6d5d0)[0x7f90bb2585d0]
/usr/lib64/libpython3.4.so.1.0(PyEval_EvalFrameEx+0xcb5)[0x7f90bb2f9be5]
/usr/lib64/libpython3.4.so.1.0(PyEval_EvalCodeEx+0x85e)[0x7f90bb3015ce]
/usr/lib64/libpython3.4.so.1.0(PyEval_EvalCode+0x3b)[0x7f90bb30169b]
/usr/lib64/libpython3.4.so.1.0(+0x1319e4)[0x7f90bb31c9e4]
/usr/lib64/libpython3.4.so.1.0(PyRun_FileExFlags+0x9d)[0x7f90bb31e99d]
/usr/lib64/libpython3.4.so.1.0(PyRun_SimpleFileExFlags+0x101)[0x7f90bb31f871]
/usr/lib64/libpython3.4.so.1.0(Py_Main+0xd6c)[0x7f90bb334f5c]
python3(main+0x169)[0x400b09]
/lib64/libc.so.6(__libc_start_main+0xf0)[0x7f90bac547b0]
python3[0x400bb6]
=== Memory map: 
0040-00401000 r-xp  08:02 7177593
/usr/bin/python3.4
00601000-00602000 r--p 1000 08:02 7177593
/usr/bin/python3.4
00602000-00603000 rw-p 2000 08:02 7177593
/usr/bin/python3.4
008c-009d5000 rw-p  00:00 0  [heap]
7f90b94c9000-7f90b94df000 r-xp  08:02 4729096
/usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.3/libgcc_s.so.1
7f90b94df000-7f90b96de000 ---p 00016000 08:02 4729096
/usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.3/libgcc_s.so.1
7f90b96de000-7f90b96df000 r--p 00015000 08:02 4729096
/usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.3/libgcc_s.so.1
7f90b96df000-7f90b96e rw-p 00016000 08:02 4729096
/usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.3/libgcc_s.so.1
7f90b96e-7f90b96e2000 r-xp  08:02 4255845
/usr/lib64/python3.4/lib-dynload/_random.cpython-34.so
7f90b96e2000-7f90b98e2000 ---p 2000 08:02 4255845
/usr/lib64/python3.4/lib-dynload/_random.cpython-34.so
7f90b98e2000-7f90b98e3000 r--p 2000 08:02 4255845
/usr/lib64/python3.4/lib-dynload/_random.cpython-34.so
7f90b98e3000-7f90b98e4000 rw-p 3000 08:02 4255845
/usr/lib64/python3.4/lib-dynload/_random.cpython-34.so
7f90b98e4000-7f90b98f9000 r-xp  08:02 2496055
/lib64/libz.so.1.2.8
7f90b98f9000-7f90b9af8000 ---p 00015000 08:02 2496055
/lib64/libz.so.1.2.8
7f90b9af8000-7f90b9af9000 r--p 00014000 08:02 2496055
/lib64/libz.so.1.2.8
7f90b9af9000-7f90b9afa000 rw-p 00015000 08:02 2496055
/lib64/libz.so.1.2.8
7f90b9afa000-7f90b9d0d000 r-xp  08:02 4067396
/usr/lib64/libcrypto.so.1.0.0
7f90b9d0d000-7f90b9f0c000 ---p 00213000 08:02 4067396
/usr/lib64/libcrypto.so.1.0.0
7f90b9f0c000-7f90b9f2a000 r--p 00212000 08:02 4067396
/usr/lib64/libcrypto.so.1.0.0
7f90b9f2a000-7f90b9f36000 rw-p 0023 08:02 4067396
/usr/lib64/libcrypto.so.1.0.0
7f90b9f36000-7f90b9f3a000 rw-p  00:00 0 
7f90b9f7-7f90b9f75000 r-xp  08:02 4218152
/usr/lib64/python3.4/lib-dynload/_hashlib.cpython-34.so
7f90b9f75000-7f90ba174000 ---p 5000 08:02 4218152
/usr/lib64/python3.4/lib-dynload/_hashlib.cpython-34.so
7f90ba174000-7f90ba175000 r--p 4000 08:02 4218152
/usr/lib64/python3.4/lib-dynload/_hashlib.cpython-34.so
7f90ba175000-7f90ba176000 rw-p 5000 08:02 4218152
/usr/lib64/python3.4/lib-dynload/_hashlib.cpython-34.so
7f90ba176000-7f90ba17e000 r-xp  08:02 4255848
/usr/lib64/python3.4/lib-dynload/math.cpython-34.so
7f90ba17e000-7f90ba37d000 ---p 8000 08:02 4255848
/usr/lib64/python3.4/lib-dynload/math.cpython-34.so
7f90ba37d000-7f90ba37e000 r--p 7000 08:02 4255848
/usr/lib64/python3.4/lib-dynload/math.cpython-34.so
7f90ba37e000-7f90ba38 rw-p 8000 08:02 4255848
/usr/lib64/python3.4/lib-dynload/math.cpython-34.so
7f90ba38-7f90ba531000 rw-p  00:00 0 
7f90ba531000-7f90ba62c000 r-xp  08:02 2497839
/lib64/libm-2.21.so
7f90ba62c000-7f90ba82b000 ---p 000fb000 08:02 2497839
/lib64/libm-2.21.so
7f90ba82b000-7f90ba82c000 r--p 000fa000 08:02

[issue24768] Bytearray double free or corruption

2015-07-31 Thread Antoine Pitrou 

Changes by Antoine Pitrou pit...@free.fr:


--
stage:  - resolved

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[issue24768] Bytearray double free or corruption

2015-07-31 Thread Antoine Pitrou 

Antoine Pitrou added the comment:

This was actually fixed in 98c1201d8eea, which didn't make it into 3.4.3.

--
resolution:  - out of date
status: open - closed

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[issue24768] Bytearray double free or corruption

2015-07-31 Thread Martin Panter 

Martin Panter added the comment:

Reproduceable on 32 bit x86 Arch Linux.

FTR this is not Issue 23985, since that was fixed in 3.4.3. I have not 
investigated, but maybe it shares the same cause (Issue 19087). Also, it may be 
helpful to build with “./configure --with-pydebug” to pinpoint the problem.

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nosy: +pitrou, vadmium

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[issue24768] Bytearray double free or corruption

2015-07-31 Thread Yury Selivanov 

Changes by Yury Selivanov yseliva...@gmail.com:


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nosy: +benjamin.peterson, yselivanov

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