Fork#40649: Memory leak at std::recursive_mutex destruction
Open Date: 2020-08-20 01:39
Last Update: 2020-08-20 01:39
URL for this Ticket:
https://osdn.net//projects/mingw/ticket/40649
RSS feed for this Ticket:
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Last Changes/Comment on this Ticket:
2020-08-20 01:39 Updated by: godbille
* New Ticket "Memory leak at std::recursive_mutex destruction" created
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Ticket Status:
Reporter: godbille
Owner: (None)
Type: Issues
Status: Open
Priority: 5 - Medium
MileStone: (None)
Component: GCC
Severity: 7
Resolution: None
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Ticket details:
Hello,
I have a memory leak when a std::recursive_mutex object is deleted. This memory
leak happens only if the recursive_mutex has been at least locked once.
Here is a short code to reproduce the problem :
#include <mutex>
#include <thread>
int main(int argc, char *argv[]) {
while(true) {
std::recursive_mutex mu;
mu.lock();
std::this_thread::sleep_for(std::chrono::milliseconds(1));
mu.unlock();
}
return 0;
}
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Here is my GCC version : ######################################################
##########
Using built-in specs. COLLECT_GCC=C:\QtUpdate\Tools\mingw730_64\bin\gcc.exe
COLLECT_LTO_WRAPPER=C:/QtUpdate/Tools/mingw730_64/bin/../libexec/gcc/
x86_64-w64-mingw32/7.3.0/lto-wrapper.exe Target: x86_64-w64-mingw32 Configured
with: ../../../src/gcc-7.3.0/configure --host=x86_64-w64-mingw32 --build=
x86_64-w64-mingw32 --target=x86_64-w64-mingw32 --prefix=/mingw64 --with-sysroot
=/c/mingw730/x86_64-730-posix-seh-rt_v5-rev0/mingw64 --enable-shared
--enable-static --disable-multilib --enable-languages=c,c++,fortran,lto
--enable-libstdcxx-time=yes --enable-threads=posix --enable-libgomp
--enable-libatomic --enable-lto --enable-graphite --enable-checking=release
--enable-fully-dynamic-string --enable-version-specific-runtime-libs
--enable-libstdcxx-filesystem-ts=yes --disable-libstdcxx-pch
--disable-libstdcxx-debug --enable-bootstrap --disable-rpath
--disable-win32-registry --disable-nls --disable-werror --disable-symvers
--with-gnu-as --with-gnu-ld --with-arch=nocona --with-tune=core2
--with-libiconv --with-system-zlib --with-gmp=/c/mingw730/prerequisites/
x86_64-w64-mingw32-static --with-mpfr=/c/mingw730/prerequisites/
x86_64-w64-mingw32-static --with-mpc=/c/mingw730/prerequisites/
x86_64-w64-mingw32-static --with-isl=/c/mingw730/prerequisites/
x86_64-w64-mingw32-static --with-pkgversion='x86_64-posix-seh-rev0, Built by
MinGW-W64 project' --with-bugurl=https://sourceforge.net/projects/mingw-w64
CFLAGS='-O2 -pipe -fno-ident -I/c/mingw730/x86_64-730-posix-seh-rt_v5-rev0/
mingw64/opt/include -I/c/mingw730/prerequisites/x86_64-zlib-static/include -I/c
/mingw730/prerequisites/x86_64-w64-mingw32-static/include' CXXFLAGS='-O2 -pipe
-fno-ident -I/c/mingw730/x86_64-730-posix-seh-rt_v5-rev0/mingw64/opt/include -I
/c/mingw730/prerequisites/x86_64-zlib-static/include -I/c/mingw730/
prerequisites/x86_64-w64-mingw32-static/include' CPPFLAGS=' -I/c/mingw730/
x86_64-730-posix-seh-rt_v5-rev0/mingw64/opt/include -I/c/mingw730/prerequisites
/x86_64-zlib-static/include -I/c/mingw730/prerequisites/
x86_64-w64-mingw32-static/include' LDFLAGS='-pipe -fno-ident -L/c/mingw730/
x86_64-730-posix-seh-rt_v5-rev0/mingw64/opt/lib -L/c/mingw730/prerequisites/
x86_64-zlib-static/lib -L/c/mingw730/prerequisites/x86_64-w64-mingw32-static/
lib ' Thread model: posix gcc version 7.3.0 (x86_64-posix-seh-rev0, Built by
MinGW-W64 project)
###############################################################################
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My binutils version : #########################################################
#######
GNU ld (GNU Binutils) 2.30
###############################################################################
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My build environment : ########################################################
#####
MINGW64_NT-6.1 NBFR7021 2.5.0(0.295/5/3) 2016-03-31 18:47 x86_64 Msys
###############################################################################
#
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