commit 1d56ac423ce25da14dce69194ceebaeda6f47f18
author Florin Coras <fcoras@cisco.com> Wed Dec 02 07:57:00 2020 -0800
committer Dave Barach <openvpp@barachs.net> Thu Dec 03 16:05:27 2020 +0000
tree 4711975b7396a46c0c2e24a75045d455ac3deaf0
parent d7adc293d377f4691b0285f62363c3958c68d235

svm: fix mutex consistency on trylock

Type: fix

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I1370943935b460a1a1a22847fed2c97b1272a5e1

src/svm/message_queue.h

diff --git a/src/svm/message_queue.h b/src/svm/message_queue.h
index 13f4d80..d4c47d7 100644
--- a/src/svm/message_queue.h
+++ b/src/svm/message_queue.h
@@ -302,7 +302,10 @@
 static inline int
 svm_msg_q_try_lock (svm_msg_q_t * mq)
 {
-  return pthread_mutex_trylock (&mq->q->mutex);
+  int rv = pthread_mutex_trylock (&mq->q->mutex);
+  if (PREDICT_FALSE (rv == EOWNERDEAD))
+    rv = pthread_mutex_consistent (&mq->q->mutex);
+  return rv;
 }
 
 /**