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Fix: add missing rcu_barrier before daemon teardown
[lttng-tools.git]
/
src
/
bin
/
lttng-sessiond
/
main.c
diff --git
a/src/bin/lttng-sessiond/main.c
b/src/bin/lttng-sessiond/main.c
index e4aaa9928f31a0a5a488277d7fee9c645c05d6e4..b29c6745bd51e8ea0cd1c0d9648f0ab8c3fe4198 100644
(file)
--- a/
src/bin/lttng-sessiond/main.c
+++ b/
src/bin/lttng-sessiond/main.c
@@
-4374,7
+4374,7
@@
error:
}
lttng_poll_clean(&events);
}
lttng_poll_clean(&events);
-
+ stop_threads();
rcu_unregister_thread();
return NULL;
}
rcu_unregister_thread();
return NULL;
}
@@
-6221,6
+6221,12
@@
exit_client:
exit_health:
exit_init_data:
exit_health:
exit_init_data:
+ /*
+ * Wait for all pending call_rcu work to complete before tearing
+ * down data structures. call_rcu worker may be trying to
+ * perform lookups in those structures.
+ */
+ rcu_barrier();
/*
* sessiond_cleanup() is called when no other thread is running, except
* the ht_cleanup thread, which is needed to destroy the hash tables.
/*
* sessiond_cleanup() is called when no other thread is running, except
* the ht_cleanup thread, which is needed to destroy the hash tables.
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