.
Thread 2 (Thread 0x7fb2a3231700 (LWP 2747)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007fb2a3b0fbd9 in __run__ (arg=0x7fb2aa5d63c0) at ../../../src/sna/sna_threads.c:70
        t = 0x7fb2aa5d63c0
        signals = {__val = {18446744067267099583, 18446744073709551615 <repeats 15 times>}}
#2  0x00007fb2a69840a5 in start_thread (arg=0x7fb2a3231700) at pthread_create.c:309
        __res = <optimized out>
        pd = 0x7fb2a3231700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140405217892096, 3632663667916091027, 0, 0, 140405217892800, 140405217892096, -3671394541092786541, -3671386511275643245}, 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  0x00007fb2a752784d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (Thread 0x7fb2a96c19c0 (LWP 2656)):
#0  0x00007fb2a98af64e in IgnoreClient (client=0x7fb2aab533c0) at ../../os/connection.c:1158
        oc = <optimized out>
        connection = <optimized out>
#1  0x00007fb2a5c6015f in glxSuspendClients () at ../../glx/glxext.c:489
        i = 15
#2  0x00007fb2a5c66f56 in glxDRILeaveVT (scrn=0x7fb2aa5d5d30) at ../../glx/glxdri2.c:834
        screen = 0x7fb2aa5f32f0
#3  0x00007fb2a978f0a5 in AbortDDX (error=error@entry=EXIT_ERR_ABORT) at ../../../../hw/xfree86/common/xf86Init.c:1171
        i = 0
#4  0x00007fb2a98b97a2 in AbortServer () at ../../os/log.c:783
No locals.
#5  0x00007fb2a98ba60d in FatalError (f=f@entry=0x7fb2a98e56a8 "Caught signal %d (%s). Server aborting\n") at ../../os/log.c:924
        args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff16b61ce0, reg_save_area = 0x7fff16b61c10}}
        args2 = {{gp_offset = 8, fp_offset = 48, overflow_arg_area = 0x7fff16b61ce0, reg_save_area = 0x7fff16b61c10}}
        beenhere = 1
#6  0x00007fb2a98b18bc in OsSigHandler (signo=11, sip=<optimized out>, unused=<optimized out>) at ../../os/osinit.c:147
        unused = <optimized out>
        sip = <optimized out>
        signo = 11
#7  <signal handler called>
No locals.
#8  0x00007fb2a97498eb in dixDestroyPixmap (value=0x7fb2aab4f350, pid=31457300) at ../../dix/dispatch.c:1341
        pPixmap = 0x7fb2aab4f350
#9  0x00007fb2a9771062 in doFreeResource (res=0x7fb2aaca5c70, skip=0) at ../../dix/resource.c:873
No locals.
#10 0x00007fb2a97720ec in FreeClientResources (client=0x7fb2aab4f350, client@entry=0x7fb2aab533c0) at ../../dix/resource.c:1139
        resources = 0x7fb2aab536d0
        this = 0x7fb2aab4f350
        j = 20
#11 0x00007fb2a974d580 in CloseDownClient (client=0x7fb2aab533c0) at ../../dix/dispatch.c:3384
        really_close_down = <optimized out>
#12 0x00007fb2a974e164 in KillAllClients () at ../../dix/dispatch.c:3411
        i = 15
#13 Dispatch () at ../../dix/dispatch.c:464
        clientReady = 0x7fb2aaa5fd00
        result = <optimized out>
        client = <optimized out>
        nready = <optimized out>
        icheck = 0x7fb2a9b49e30 <checkForInput>
        start_tick = <optimized out>
#14 0x00007fb2a97522a6 in dix_main (argc=11, argv=0x7fff16b62508, envp=<optimized out>) at ../../dix/main.c:296
        i = <optimized out>
        alwaysCheckForInput = {0, 1}
#15 0x00007fb2a744eec5 in __libc_start_main (main=0x7fb2a973c680 <main>, argc=11, argv=0x7fff16b62508, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff16b624f8) at libc-start.c:287
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 3632663667916091027, 140405323843205, 140733574423808, 0, 0, -3632156158783181165, -3671384970789572973}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7fb2a98be3a0 <__libc_csu_init>, 0x7fff16b62508}, data = {prev = 0x0, cleanup = 0x0, canceltype = -1450450016}}}
        not_first_call = <optimized out>
#16 0x00007fb2a973c6ae in _start ()
No symbol table info available.