(At least on kernel 3.16), stat("/proc/${pid_of_zombie}/ns/mnt") returns
-ENOENT, as a result lsns stops scanning processes prematurely.
--- util-linux.orig/sys-utils/lsns.c
+++ util-linux/sys-utils/lsns.c
@@ -308,7 +308,7 @@ static int read_processes(struct lsns *l
while (proc_next_pid(proc, &pid) == 0) {
rc = read_process(ls, pid);
- if (rc && rc != -EACCES)
+ if (rc && rc != -EACCES && rc != -ENOENT)
break;
rc = 0;
}
--
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