Fix: reset cached vpid context on fork

We currently reset the cached vtid on fork but not the vpid. This is not
a problem on Linux because we don't cache the vpid internally but call
getpid() directly and rely on the glibc pid cache.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/liblttng-ust/lttng-ust-comm.c b/liblttng-ust/lttng-ust-comm.c
index 43914465d30a64045c448574290866f577715f30..d4add1c07ec9555aa0a35009c7a93a54749c34a7 100644 (file)
--- a/liblttng-ust/lttng-ust-comm.c
+++ b/liblttng-ust/lttng-ust-comm.c
@@ -2011,6 +2011,7 @@ void ust_after_fork_child(sigset_t *restore_sigset)
 {
        if (URCU_TLS(lttng_ust_nest_count))
                return;
+       lttng_context_vpid_reset();
        lttng_context_vtid_reset();
        DBG("process %d", getpid());
        /* Release urcu mutexes */