. Thread 1 (Thread 1328): #0 0x00007f22a1200b45 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 resultvar = 0 pid = selftid = #1 0x00007f22a1204496 in abort () at abort.c:92 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x200000009, sa_sigaction = 0x200000009}, sa_mask = {__val = {140736973547920, 140736973553062, 10, 139786709954340, 3, 140736973547914, 6, 139786709954344, 2, 140736973547902, 2, 139786709945365, 1, 139786709954340, 3, 140736973547908}}, sa_flags = 12, sa_restorer = 0x7f22a130ef28} sigs = {__val = {32, 0 }} #2 0x00007f22a12395db in __libc_message (do_abort=2, fmt=0x7f22a1310790 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:189 ap = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fffe150b300, reg_save_area = 0x7fffe150b210}} ap_copy = {{gp_offset = 16, fp_offset = 48, overflow_arg_area = 0x7fffe150b300, reg_save_area = 0x7fffe150b210}} fd = 2 on_2 = list = nlist = cp = written = #3 0x00007f22a1243416 in malloc_printerr (action=3, str=0x7f22a130d95d "corrupted double-linked list", ptr=) at malloc.c:6283 buf = "0000000003f282e0" cp = #4 0x00007f22a12453fc in _int_free (av=0x7f22a154a1a0, p=0x3f282e0) at malloc.c:4964 size = 1328 fb = nextchunk = 0x3f28810 nextsize = 1120 nextinuse = prevsize = bck = fwd = 0x3bbb370 errstr = 0x0 __func__ = "_int_free" #5 0x00007f22a1249153 in __libc_free (mem=) at malloc.c:3738 ar_ptr = 0x7f22a154a1a0 p = hook = #6 0x00007f229fea9c94 in ?? () from /usr/lib/xorg/modules/extensions/libglx.so No symbol table info available. #7 0x000000000044bdec in FreeClientResources () No symbol table info available. #8 0x000000000044bea9 in FreeAllResources () No symbol table info available. #9 0x0000000000421af4 in _start () No symbol table info available.