New submission from Xavier de Gaye:
This does not happen on tests run with '-R 22:22' or a lower run count, but
occur systematically with '-R 23:23' or a greater run count.
$ ./python
Python 3.5.0a0 (default:1e1c6e306eb4, Oct 9 2014, 19:52:59)
[GCC 4.9.1 20140903 (prerelease)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import platform; platform.uname()
uname_result(system='Linux', node='bilboquet', release='3.16.3-1-ARCH',
version='#1 SMP PREEMPT Wed Sep 17 21:54:13 CEST 2014', machine='x86_64',
processor='')
>>>
$ ./python -m test -R 23:23 test_capi
[1/1] test_capi
beginning 46 repetitions
1234567890123456789012345678901234567890123456
..............................................
1 test OK.
Debug memory block at address p=0x982570: API ''
18446744073709551615 bytes originally requested
The 7 pad bytes at p-7 are not all FORBIDDENBYTE (0xfb):
at p-7: 0x00 *** OUCH
at p-6: 0x00 *** OUCH
at p-5: 0x00 *** OUCH
at p-4: 0x00 *** OUCH
at p-3: 0x00 *** OUCH
at p-2: 0x00 *** OUCH
at p-1: 0x00 *** OUCH
Because memory is corrupted at the start, the count of bytes requested
may be bogus, and checking the trailing pad bytes may segfault.
The 8 pad bytes at tail=0x98256f are not all FORBIDDENBYTE (0xfb):
at tail+0: 0x00 *** OUCH
at tail+1: 0x00 *** OUCH
at tail+2: 0x00 *** OUCH
at tail+3: 0x00 *** OUCH
at tail+4: 0x00 *** OUCH
at tail+5: 0x00 *** OUCH
at tail+6: 0x00 *** OUCH
at tail+7: 0x00 *** OUCH
The block was made by call #0 to debug malloc/realloc.
Data at p:
Fatal Python error: bad ID: Allocated using API '', verified using API 'o'
Current thread 0x00007f525bcf2700 (most recent call first):
Aborted (core dumped)
----------
components: Library (Lib)
messages: 228886
nosy: xdegaye
priority: normal
severity: normal
status: open
title: memory corrupted in test_capi refleaks test
type: crash
versions: Python 3.5
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue22588>
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