perf tests kallsyms: Fix missed map__put()

2026-03-04T12:19:26Z

[ Upstream commit a58807adbed5f532efb231e5490767f284f237c0 ] Issue was caught by leak sanitizer and the test robot. Fixes: 34e271ae55382fbd ("perf test: Add kallsyms split test") Reported-by: kernel test robot Reviewed-by: James Clark Signed-off-by: Ian Rogers Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Closes: https://lore.kernel.org/oe-lkp/202512101502.f3819cd3-lkp@intel.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin

perf test: Add kallsyms split test

2025-12-03T05:59:15Z

Create a fake root directory for /proc/{version,modules,kallsyms} in /tmp for testing. The kallsyms has a bad symbol in the module and it causes the main map splitted. The test ensures it only has two maps - kernel and the module and it finds the initial map after the module without creating the split maps like [kernel].0 and so on. $ perf test -vv "split kallsyms" 69: split kallsyms: --- start --- test child forked, pid 1016196 try to create fake root directory create kernel maps from the fake root directory maps__set_modules_path_dir: cannot open /tmp/perf-test.Zrv6Sy/lib/modules/X.Y.Z dir Problems setting modules path maps, continuing anyway... Failed to open /tmp/perf-test.Zrv6Sy/proc/kcore. Note /proc/kcore requires CAP_SYS_RAWIO capability to access. Using /tmp/perf-test.Zrv6Sy/proc/kallsyms for symbols kernel map loaded - check symbol and map ---- end(0) ---- 69: split kallsyms : Ok Reviewed-by: Ian Rogers Signed-off-by: Namhyung Kim

kernel/tools/perf/tests/kallsyms-split.c, branch linux-rolling-stable

perf tests kallsyms: Fix missed map__put()

perf test: Add kallsyms split test