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Thread 1 (Thread 1408):
#0  0x00007fa572cdaf8b in ?? () from /lib/x86_64-linux-gnu/libgcc_s.so.1
No symbol table info available.
#1  0x00007fa572cdbabc in _Unwind_Backtrace () from /lib/x86_64-linux-gnu/libgcc_s.so.1
No symbol table info available.
#2  0x00007fa573aad330 in backtrace () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#3  0x000000000045d056 in xorg_backtrace ()
No symbol table info available.
#4  0x000000000045ae8a in ?? ()
No symbol table info available.
#5  <signal handler called>
No symbol table info available.
#6  0x0000000000000051 in ?? ()
No symbol table info available.
#7  0x000000000045fc9a in ?? ()
No symbol table info available.
#8  0x000000000045bddf in CloseWellKnownConnections ()
No symbol table info available.
#9  0x0000000000459e58 in ?? ()
No symbol table info available.
#10 0x0000000000459ebb in ?? ()
No symbol table info available.
#11 0x000000000045a09e in FatalError ()
No symbol table info available.
#12 0x000000000051bb1a in ?? ()
No symbol table info available.
#13 0x000000000051c273 in xf86CloseConsole ()
No symbol table info available.
#14 0x0000000000468025 in ddxSigGiveUp ()
No symbol table info available.
#15 0x0000000000421c9b in _start ()
No symbol table info available.