X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Frunas.c;h=2c2015aa2d5b8206bca9052320553f8da78d431d;hb=b1c900e9d222629937cb1a42e769318e88f28664;hp=e230774df442134ddbf45185a080806c4974f85f;hpb=d14d33bf091e72b23b1f90ea18a0a01bed098b76;p=lttng-tools.git

diff --git a/src/common/runas.c b/src/common/runas.c
index e230774df..2c2015aa2 100644
--- a/src/common/runas.c
+++ b/src/common/runas.c
@@ -38,6 +38,10 @@
 
 #define RUNAS_CHILD_STACK_SIZE	10485760
 
+#ifndef MAP_STACK
+#define MAP_STACK		0
+#endif
+
 #ifdef __FreeBSD__
 /* FreeBSD MAP_STACK always return -ENOMEM */
 #define LTTNG_MAP_STACK		0
@@ -313,8 +317,13 @@ static
 int run_as(int (*cmd)(void *data), void *data, uid_t uid, gid_t gid)
 {
 	if (!getenv("LTTNG_DEBUG_NOCLONE")) {
+		int ret;
+
 		DBG("Using run_as_clone");
-		return run_as_clone(cmd, data, uid, gid);
+		pthread_mutex_lock(&lttng_libc_state_lock);
+		ret = run_as_clone(cmd, data, uid, gid);
+		pthread_mutex_unlock(&lttng_libc_state_lock);
+		return ret;
 	} else {
 		DBG("Using run_as_noclone");
 		return run_as_noclone(cmd, data, uid, gid);