Pthread mutex assertion error

Question

I\'m encountering the following error at unpredictable times in a linux-based (arm) communications application:

pthread_mutex_lock.c:82: __pthread_mutex_lock         


        

Answer 1

The quick bit of Googling I've done often blames this on a compiler mis-optimization. A decent summation is here. It might be worth looking at the assembly output to see if gcc is producing the right code.

Either that or you are managing to stomp on the memory used by the pthread library... those sort of problems are rather tricky to find.