From 4dc3d22d12b3b22ae4d8435ca8f00b6015d969c7 Mon Sep 17 00:00:00 2001
From: Thulinma <jaron@vietors.com>
Date: Thu, 28 Jul 2016 20:41:44 +0200
Subject: [PATCH] Fixed potential deadlock in buffer when a past crash has
happened
---
lib/shared_memory.cpp | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/lib/shared_memory.cpp b/lib/shared_memory.cpp
index 0faf16a2..d0041fd5 100644
--- a/lib/shared_memory.cpp
+++ b/lib/shared_memory.cpp
@@ -766,6 +766,10 @@ namespace IPC {
DEBUG_MSG(DLVL_FAIL, "Creating semaphore failed: %s", strerror(errno));
return;
}
+ if (!mySemaphore.tryWaitOneSecond()){
+ WARN_MSG("Force unlocking sharedServer semaphore to prevent deadlock");
+ }
+ mySemaphore.post();
semGuard tmpGuard(&mySemaphore);
newPage();
}