Hi, The loop dealing with waiting on the remaining children contains: ... if (res->res == -2) /* Skip hard links. */ continue; ... The reason we need this is because the pids array isn't initialized in this case, so the following code: ... if (pids[i] == 0) continue; ... would otherwise read an uninitialized variable. Fix this by: - initializing the pids array, and - removing the res->res == -2 code. Committed to trunk. Thanks, - Tom Initialize pids in dwz_files_1 2021-03-27 Tom de Vries <tdevries@suse.de> * dwz.c (dwz_files_1): Initialize pids. Simplify loop waiting on remaining children. --- dwz.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/dwz.c b/dwz.c index bd40e90..3e7eb24 100644 --- a/dwz.c +++ b/dwz.c @@ -16496,6 +16496,8 @@ dwz_files_1 (int nr_files, char *files[], bool hardlink, if (max_forks > 1 && multifile == NULL) { pid_t pids[nr_files]; + for (i = 0; i < nr_files; i++) + pids[i] = 0; for (i = 0; i < nr_files; i++) { int thisret; @@ -16529,11 +16531,7 @@ dwz_files_1 (int nr_files, char *files[], bool hardlink, for (i = 0; i < nr_files; i++) { int thisret; - file = files[i]; struct file_result *res = &resa[i]; - if (res->res == -2) - /* Skip hard links. */ - continue; if (pids[i] == 0) continue; thisret = wait_child_exit (pids[i], &pids[i], 1, res);