# gdb /usr/lib/xorg-server/Xorg.wrap $(pidof Xorg)
GNU gdb (GDB) 7.11.1
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Reading symbols from /usr/lib/xorg-server/Xorg.wrap...done.
Attaching to program: /usr/lib/xorg-server/Xorg.wrap, process 671
Cannot access memory at address 0xe0a70400e44068b
Cannot access memory at address 0xe0a70400e440683
Cannot access memory at address 0xe0a70400e44068b
Cannot access memory at address 0xe0a70400e44068b
Cannot access memory at address 0xe0a70400e440683
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
0x00007f4c4f340093 in ?? ()
(gdb) cont
Continuing.
Cannot access memory at address 0xe0a70400e44068b
Cannot access memory at address 0xe0a70400e440683
Cannot access memory at address 0xe0a70400e44068b
Cannot access memory at address 0xe0a70400e440683
Cannot access memory at address 0xe0a70400e44068b
Cannot access memory at address 0xe0a70400e440683
Cannot access memory at address 0xe0a70400e44068b
Cannot access memory at address 0xe0a70400e440683
Cannot access memory at address 0xe0a70400e44068b
Cannot access memory at address 0xe0a70400e440683
[New LWP 9441]
Cannot access memory at address 0xe0a70400e44068b
Cannot access memory at address 0xe0a70400e440683
Cannot access memory at address 0xe0a70400e44068b
Cannot access memory at address 0xe0a70400e440683
Cannot access memory at address 0xe0a70400e44068b
Cannot access memory at address 0xe0a70400e440683

Thread 1 "Xorg" received signal SIGABRT, Aborted.
0x00007f4c4f29204f in ?? ()
(gdb) bt full
#0  0x00007f4c4f29204f in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.
(gdb) bt f
#0  0x00007f4c4f29204f in ?? ()
No symbol table info available.
#1  0x0000000000000000 in ?? ()
No symbol table info available.
(gdb) detach
Detaching from program: /usr/lib/xorg-server/Xorg.wrap, process 671
(gdb) quit
#