± strace ./a.out segfault
execve("./a.out", ["./a.out", "segfault"], [/* 42 vars */]) = 0
brk(0)                                  = 0x2049000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb45ab1d000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=130458, ...}) = 0
mmap(NULL, 130458, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb45aafd000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300\357\1\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1583120, ...}) = 0
mmap(NULL, 3696728, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb45a579000
mprotect(0x7fb45a6f6000, 2097152, PROT_NONE) = 0
mmap(0x7fb45a8f6000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x17d000) = 0x7fb45a8f6000
mmap(0x7fb45a8fb000, 18520, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fb45a8fb000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb45aafc000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb45aafb000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb45aafa000
arch_prctl(ARCH_SET_FS, 0x7fb45aafb700) = 0
mprotect(0x7fb45a8f6000, 16384, PROT_READ) = 0
mprotect(0x7fb45ab1f000, 4096, PROT_READ) = 0
munmap(0x7fb45aafd000, 130458)          = 0
brk(0)                                  = 0x2049000
brk(0x206a000)                          = 0x206a000
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
[1]    31326 segmentation fault  strace ./a.out segfault