diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 8e0b214..86d8779 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -31,3 +31,4 @@ ovni_test("flush" "driver.sh")
ovni_test("flush-overhead" "driver.sh")
ovni_test("mp-simple" "mp-driver.sh")
ovni_test("mp-rank" "mp-driver.sh")
+ovni_test("nosv-nested-tasks" "driver.sh")
diff --git a/test/nosv-nested-tasks.c b/test/nosv-nested-tasks.c
new file mode 100644
index 0000000..83fb3da
--- /dev/null
+++ b/test/nosv-nested-tasks.c
@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2021-2022 Barcelona Supercomputing Center (BSC)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ */
+
+#define _GNU_SOURCE
+
+#include "ovni.h"
+#include "compat.h"
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+static void
+fail(const char *msg)
+{
+ fprintf(stderr, "%s\n", msg);
+ abort();
+}
+
+static inline void
+emit_ev(char *mcv)
+{
+ struct ovni_ev ev = { 0 };
+
+ ovni_ev_set_mcv(&ev, mcv);
+ ovni_ev_set_clock(&ev, ovni_clock_now());
+ ovni_ev_emit(&ev);
+}
+
+#define INSTR_3ARG(name, mcv, ta, a, tb, b, tc, c) \
+ static inline void name(ta a, tb b, tc c) \
+ { \
+ struct ovni_ev ev = {0}; \
+ ovni_ev_set_mcv(&ev, mcv); \
+ ovni_ev_set_clock(&ev, ovni_clock_now()); \
+ ovni_payload_add(&ev, (uint8_t *)&a, sizeof(a)); \
+ ovni_payload_add(&ev, (uint8_t *)&b, sizeof(b)); \
+ ovni_payload_add(&ev, (uint8_t *)&c, sizeof(c)); \
+ ovni_ev_emit(&ev); \
+ }
+
+INSTR_3ARG(instr_thread_execute, "OHx", int32_t, cpu, int32_t, creator_tid, uint64_t, tag)
+
+static inline void
+instr_thread_end(void)
+{
+ struct ovni_ev ev = {0};
+
+ ovni_ev_set_mcv(&ev, "OHe");
+ ovni_ev_set_clock(&ev, ovni_clock_now());
+ ovni_ev_emit(&ev);
+
+ /* Flush the events to disk before killing the thread */
+ ovni_flush();
+}
+
+static inline void
+instr_start(int rank, int nranks)
+{
+ char hostname[HOST_NAME_MAX];
+
+ if(gethostname(hostname, HOST_NAME_MAX) != 0)
+ fail("gethostname failed");
+
+ ovni_proc_init(1, hostname, getpid());
+
+ ovni_proc_set_rank(rank, nranks);
+
+ ovni_thread_init(gettid());
+
+ /* Only the rank 0 inform about all CPUs */
+ if(rank == 0)
+ {
+ /* Fake nranks cpus */
+ for(int i=0; i < nranks; i++)
+ ovni_add_cpu(i, i);
+ }
+
+ int curcpu = rank;
+
+ fprintf(stderr, "thread %d has cpu %d (ncpus=%d)\n",
+ gettid(), curcpu, nranks);
+
+ instr_thread_execute(curcpu, -1, 0);
+}
+
+static inline void
+instr_end(void)
+{
+ instr_thread_end();
+ ovni_thread_free();
+ ovni_proc_fini();
+}
+
+static void
+task_begin(int32_t id, int us)
+{
+ int32_t typeid = 1;
+ struct ovni_ev ev = {0};
+
+ ovni_ev_set_mcv(&ev, "VTc");
+ ovni_ev_set_clock(&ev, ovni_clock_now());
+ ovni_payload_add(&ev, (uint8_t *) &id, sizeof(id));
+ ovni_payload_add(&ev, (uint8_t *) &typeid, sizeof(id));
+ ovni_ev_emit(&ev);
+
+ memset(&ev, 0, sizeof(ev));
+
+ ovni_ev_set_mcv(&ev, "VTx");
+ ovni_ev_set_clock(&ev, ovni_clock_now());
+ ovni_payload_add(&ev, (uint8_t *) &id, sizeof(id));
+ ovni_ev_emit(&ev);
+
+ usleep(us);
+}
+
+static void
+task_end(int32_t id)
+{
+ struct ovni_ev ev = {0};
+
+ ovni_ev_set_mcv(&ev, "VTe");
+ ovni_ev_set_clock(&ev, ovni_clock_now());
+ ovni_payload_add(&ev, (uint8_t *) &id, sizeof(id));
+ ovni_ev_emit(&ev);
+}
+
+int
+main(void)
+{
+ instr_start(0, 1);
+
+ int ntasks = 100;
+
+ /* Create and run the tasks, one nested into another */
+ for(int i=0; i=0; i--)
+ task_end(i + 1);
+
+ instr_end();
+
+ return 0;
+}
+