From: Zhichao Zeng <zhichaox.z...@intel.com>
The eal-intr-thread is not closed before exiting the main
thread. There is a small probability that when the
eal-intr-thread is about to use some pointers, the pointers
were just released in the process of exiting, which cause
the segment fault error caught by ASan.
Close the eal-intr-thread before exiting the mian thread
to avoid segment fault.
Signed-off-by: Zhichao Zeng <zhichaox.z...@intel.com>
---
lib/eal/common/eal_private.h | 7 +++++++
lib/eal/linux/eal.c | 1 +
lib/eal/linux/eal_interrupts.c | 12 ++++++++++++
3 files changed, 20 insertions(+)
diff --git a/lib/eal/common/eal_private.h b/lib/eal/common/eal_private.h
index 44d14241f0..7adf41b7d7 100644
--- a/lib/eal/common/eal_private.h
+++ b/lib/eal/common/eal_private.h
@@ -152,6 +152,13 @@ int rte_eal_tailqs_init(void);
*/
int rte_eal_intr_init(void);
+/**
+ * Destroy interrupt handling thread.
+ *
+ * This function is private to EAL.
+ */
+void rte_eal_intr_destroy(void);
+
/**
* Close the default log stream
*
diff --git a/lib/eal/linux/eal.c b/lib/eal/linux/eal.c
index 1ef263434a..b310681acf 100644
--- a/lib/eal/linux/eal.c
+++ b/lib/eal/linux/eal.c
@@ -1266,6 +1266,7 @@ rte_eal_cleanup(void)
vfio_mp_sync_cleanup();
#endif
rte_mp_channel_cleanup();
+ rte_eal_intr_destroy();
/* after this point, any DPDK pointers will become dangling */
rte_eal_memory_detach();
eal_mp_dev_hotplug_cleanup();
diff --git a/lib/eal/linux/eal_interrupts.c b/lib/eal/linux/eal_interrupts.c
index d52ec8eb4c..b246b87273 100644
--- a/lib/eal/linux/eal_interrupts.c
+++ b/lib/eal/linux/eal_interrupts.c
@@ -1199,6 +1199,18 @@ rte_eal_intr_init(void)
return ret;
}
+void
+rte_eal_intr_destroy(void)
+{
+ /* cancel the host thread */
+ pthread_cancel(intr_thread);
+ pthread_join(intr_thread, NULL);
+
+ /* close the pipe used by epoll */
+ close(intr_pipe.writefd);
+ close(intr_pipe.readfd);
+}
+
static void
eal_intr_proc_rxtx_intr(int fd, const struct rte_intr_handle *intr_handle)
{
--
2.25.1
