[issue27780] Memory leak during Python build (from git c3ff7e7) on Debian 8.5 x64

[geeknik]

geeknik added the comment:

FYI, I was only able to build Python with ASAN by passing 
ASAN_OPTIONS=detect_leaks=0 along with the make command, otherwise ASAN wanted 
to stop the build process as soon as it detected this leak.

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[issue27780] Memory leak during Python build (from git c3ff7e7) on Debian 8.5 x64

[Ned Deily]

Ned Deily added the comment:

Thanks for the report but, AFAIK, pgen is only used during the build of Python 
and pgen is not installed (by "make install").  This doesn't seem like it is 
worth worrying about.  Or am I missing something?  Feel free to reopen if so or 
if someone comes up with a patch.

--
nosy: +ned.deily
priority: normal -> low
resolution:  -> wont fix
stage:  -> resolved
status: open -> closed

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[issue27780] Memory leak during Python build (from git c3ff7e7) on Debian 8.5 x64

[geeknik]

New submission from geeknik:

CC=afl-clang-fast CXX=afl-clang-fast++ AFL_USE_ASAN=1 ./configure --disable-ipv6

Passes fine.

AFL_USE_ASAN=1 make

Ends with the following:

Parser/pgen ./Grammar/Grammar Include/graminit.h Python/graminit.c

=
==29392==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 12416 byte(s) in 8 object(s) allocated from:
#0 0x4a1f2e in realloc (/root/cpython/Parser/pgen+0x4a1f2e)
#1 0x4cfcca in PyMem_RawRealloc /root/cpython/Objects/obmalloc.c:414:12

Indirect leak of 2080 byte(s) in 3 object(s) allocated from:
#0 0x4a1f2e in realloc (/root/cpython/Parser/pgen+0x4a1f2e)
#1 0x4cfcca in PyMem_RawRealloc /root/cpython/Objects/obmalloc.c:414:12

Indirect leak of 898 byte(s) in 86 object(s) allocated from:
#0 0x4a1c3b in __interceptor_malloc (/root/cpython/Parser/pgen+0x4a1c3b)
#1 0x7fbd7abe3989 in __strdup 
/build/glibc-uPj9cH/glibc-2.19/string/strdup.c:42

Indirect leak of 520 byte(s) in 1 object(s) allocated from:
#0 0x4a1c3b in __interceptor_malloc (/root/cpython/Parser/pgen+0x4a1c3b)
#1 0x4d3fa0 in PyMem_RawMalloc /root/cpython/Objects/obmalloc.c:396:12
#2 0x4d3fa0 in _PyObject_Alloc /root/cpython/Objects/obmalloc.c:1467

Indirect leak of 178 byte(s) in 33 object(s) allocated from:
#0 0x4a1c3b in __interceptor_malloc (/root/cpython/Parser/pgen+0x4a1c3b)
#1 0x4c6756 in translabel /root/cpython/Parser/grammar.c:197:28
#2 0x4c6756 in _Py_translatelabels /root/cpython/Parser/grammar.c:141

SUMMARY: AddressSanitizer: 16092 byte(s) leaked in 131 allocation(s).
Makefile:804: recipe for target 'Include/graminit.h' failed
make: *** [Include/graminit.h] Error 23

--
components: Build
messages: 272889
nosy: geeknik
priority: normal
severity: normal
status: open
title: Memory leak during Python build (from git c3ff7e7) on Debian 8.5 x64

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