Recntly, people reported issues with wifi. The bug really has nothing to do with the wifi. It is a memory corruption issue inside the system property manager. Long ago, I changed the size of system property name to support user configure-able battery sysfs path. This change will cause the size of shared memory for the system properties to increase. But the original code of shared memory creation uses a hard coded size and I was not aware of that. When the amonut of the total used system property entries increased to certain level, segfault will happen since system property entry may have pointed to a wrong address. After adjusted the code to create the share memory, it seems that the problem goes away.
If you are still seeing the issue, please report it in the discussion group.