[Bug libstdc++/117276] std::sort(par_unseq ,...) leaks memory when called repeatedly

[benni.buch at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117276

Benjamin Buch <benni.buch at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |benni.buch at gmail dot com

--- Comment #11 from Benjamin Buch <benni.buch at gmail dot com> ---
I can reproduce this with GCC 15.2 on Ubuntu 25.10 via:

https://github.com/oschonrock/tbbleak

./build.sh
-- The CXX compiler identification is GNU 15.2.0
...

./build/gcc/relwithdebinfo/sort_leak
Single threaded sort:
VM:    17492   RSS:    12140 (kB)
VM:    17496   RSS:    12176 (kB)
VM:    17496   RSS:    12176 (kB)
VM:    17496   RSS:    12176 (kB)
VM:    17496   RSS:    12176 (kB)

par_unseq sort:
VM:   332764   RSS:    17820 (kB)
VM:   332764   RSS:    19612 (kB)
VM:   332764   RSS:    21148 (kB)
VM:   345052   RSS:    23068 (kB)
VM:   345052   RSS:    24860 (kB)