.
Thread 3 (LWP 2173):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007fe788271861 in __run__ (arg=0x7fe78f602530) at ../../../src/sna/sna_threads.c:61
        t = 0x7fe78f602530
        signals = {__val = {18446744067267100671, 18446744073709551615 <repeats 15 times>}}
#2  0x00007fe78cef1182 in start_thread (arg=0x7fe78799f700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7fe78799f700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140632389187328, -5797921397953990355, 0, 0, 140632389188032, 140632389187328, 5784497717741941037, 5784518489675591981}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#3  0x00007fe78ba0230d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 2 (LWP 2174):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007fe788271861 in __run__ (arg=0x7fe78f6025a0) at ../../../src/sna/sna_threads.c:61
        t = 0x7fe78f6025a0
        signals = {__val = {18446744067267100671, 18446744073709551615 <repeats 15 times>}}
#2  0x00007fe78cef1182 in start_thread (arg=0x7fe78719e700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7fe78719e700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140632380794624, -5797921397953990355, 0, 0, 140632380795328, 140632380794624, 5784498816716697901, 5784518489675591981}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#3  0x00007fe78ba0230d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (LWP 1978):
#0  x86_64_fallback_frame_state (context=0x7fffcf235c90, context=0x7fffcf235c90, fs=0x7fffcf235d80) at ./md-unwind-support.h:58
        pc = 0x3ca04 <Address 0x3ca04 out of bounds>
        sc = <optimized out>
        new_cfa = <optimized out>
#1  uw_frame_state_for (context=context@entry=0x7fffcf235c90, fs=fs@entry=0x7fffcf235d80) at ../../../src/libgcc/unwind-dw2.c:1253
        fde = 0x0
        cie = <optimized out>
        aug = <optimized out>
        insn = <optimized out>
        end = <optimized out>
#2  0x00007fe78a5bc748 in _Unwind_Backtrace (trace=0x7fe78ba12b40 <backtrace_helper>, trace_argument=0x7fffcf235f40) at ../../../src/libgcc/unwind.inc:290
        fs = {regs = {reg = {{loc = {reg = 0, offset = 0, exp = 0x0}, how = REG_UNSAVED} <repeats 18 times>}, prev = 0x0, cfa_offset = 0, cfa_reg = 0, cfa_exp = 0x0, cfa_how = CFA_UNSET}, pc = 0x0, personality = 0x0, data_align = 0, code_align = 0, retaddr_column = 0, fde_encoding = 0 '\000', lsda_encoding = 0 '\000', saw_z = 0 '\000', signal_frame = 0 '\000', eh_ptr = 0x0}
        context = {reg = {0x7fffcf236290, 0x7fffcf236288, 0x7fffcf236298, 0x7fffcf236280, 0x7fffcf236270, 0x7fffcf236268, 0x7fffcf236278, 0x7fffcf2362a0, 0x7fffcf236228, 0x7fffcf236230, 0x7fffcf236238, 0x7fffcf236240, 0x7fffcf236248, 0x7fffcf236250, 0x7fffcf236258, 0x7fffcf236260, 0x7fffcf2362a8, 0x0}, cfa = 0x7fffcf236798, ra = 0x3ca04, lsda = 0x0, bases = {tbase = 0x0, dbase = 0x0, func = 0x7fe78cef933f}, flags = 13835058055282163712, version = 0, args_size = 0, by_value = '\000' <repeats 17 times>}
        code = <optimized out>
#3  0x00007fe78ba12cb6 in __GI___backtrace (array=array@entry=0x7fffcf235f80, size=size@entry=64) at ../sysdeps/x86_64/backtrace.c:109
        arg = {array = 0x7fffcf235f80, cfa = 140736668590592, cnt = 3, size = 64}
        once = 2
#4  0x00007fe78df94a48 in xorg_backtrace () at ../../os/backtrace.c:125
        array = 0x7fffcf235f80
        mod = <optimized out>
        size = <optimized out>
        i = <optimized out>
        info = {dli_fname = 0x0, dli_fbase = 0x7fe78b9f3729 <write+57>, dli_sname = 0x0, dli_saddr = 0x7fe78b980e43 <_IO_new_file_write+67>}
#5  0x00007fe78df98739 in OsSigHandler (signo=11, sip=0x7fffcf236330, unused=<optimized out>) at ../../os/osinit.c:129
        unused = <optimized out>
        sip = 0x7fffcf236330
        signo = 11
#6  <signal handler called>
No locals.
#7  0x000000000003ca04 in ?? ()
No symbol table info available.
#8  0x00007fe78df9e90b in _XSERVTransClose (ciptr=0x7fe78f5dc490) at /usr/include/X11/Xtrans/Xtrans.c:911
        ret = <optimized out>
#9  0x00007fe78df955ff in CloseWellKnownConnections () at ../../os/connection.c:515
        i = 0
#10 0x00007fe78df9fe99 in AbortServer () at ../../os/log.c:767
No locals.
#11 0x00007fe78dfa0bb8 in FatalError (f=f@entry=0x7fe78dfb40b4 "%s: VT_ACTIVATE failed: %s\n") at ../../os/log.c:911
        args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fffcf2368f0, reg_save_area = 0x7fffcf236820}}
        args2 = {{gp_offset = 8, fp_offset = 48, overflow_arg_area = 0x7fffcf2368f0, reg_save_area = 0x7fffcf236820}}
        beenhere = 1
#12 0x00007fe78dea4c69 in switch_to (vt=7, from=from@entry=0x7fe78dfb413d "xf86CloseConsole") at ../../../../../hw/xfree86/os-support/linux/lnx_init.c:72
        ret = <optimized out>
#13 0x00007fe78dea5543 in xf86CloseConsole () at ../../../../../hw/xfree86/os-support/linux/lnx_init.c:308
        VT = {mode = 0 '\000', waitv = 0 '\000', relsig = 0, acqsig = 0, frsig = 0}
        ret = <optimized out>
#14 0x00007fe78de8159d in ddxGiveUp (error=error@entry=EXIT_NO_ERROR) at ../../../../hw/xfree86/common/xf86Init.c:1106
        i = <optimized out>
#15 0x00007fe78de45bb4 in dix_main (argc=12, argv=0x7fffcf236a98, envp=<optimized out>) at ../../dix/main.c:374
        i = <optimized out>
        alwaysCheckForInput = {0, 1}
#16 0x00007fe78b928ec5 in __libc_start_main (main=0x7fe78de30e50 <main>, argc=12, argv=0x7fffcf236a98, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffcf236a88) at libc-start.c:287
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -5797921397953990355, 140632494640725, 140736668592784, 0, 0, 5797886939098050861, 5784506553523171629}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7fe78dfa4510 <__libc_csu_init>, 0x7fffcf236a98}, data = {prev = 0x0, cleanup = 0x0, canceltype = -1912978160}}}
        not_first_call = <optimized out>
#17 0x00007fe78de30e7e in _start ()
No symbol table info available.