Don't use epicsMutexMustLock() in msgbufGetFree(). When we're shutting down, the pvtData.msgQueueLock gets destroyed. This makes msgbufGetFree() return NULL if the lock is dead. The epicsMutexMustLock() routine asserts(), which recurses...
Don't use epicsMutexMustLock() in msgbufGetFree(). When we're shutting down, the pvtData.msgQueueLock gets destroyed. This makes msgbufGetFree() return NULL if the lock is dead. The epicsMutexMustLock() routine asserts(), which recurses...