Segfault happened at: 0x7fd43338b71b <vfprintf+155>:	callq  0x7fd4333d6790 <strchrnul>
PC (0x7fd43338b71b) ok
source "0x7fd4333d6790" (0x7fd4333d6790) ok
destination "(%rsp)" (0x7fff799d4f80) not located in a known VMA region (needed writable region)!
Stack memory exhausted (SP below stack segment)