I was trying to play around with gdb, and I'm especially interest in seeing how the Procedural Linkage Table(PLT) and the Global Offset Table (GOT) interact with each other. So I set some breakpoints and see how the process work step by step. Interestingly enough, when I set breakpoints at certain instruction, I got segmentation fault, and I could not understand why. I simply stop at that instruction. Why would my program give me a segmentation fault? I'm just curious about this behavior. I screenshot the behavior. The red line encloses where I insert a breakpoint, and the program start to receive segfault.