Thread 1 "X" received signal SIGSEGV, Segmentation fault.
libinput_device_config_tap_get_finger_count (device=0x0) at libinput.c:3317
3317		return device->config.tap ? device->config.tap->count(device) : 0;
(gdb) bt full
#0  libinput_device_config_tap_get_finger_count (device=0x0) at libinput.c:3317
No locals.
#1  0xb6a0ebed in xf86libinput_parse_tap_option (pInfo=0x985cae0, device=0x0) at xf86libinput.c:2057
        tap = 8 '\b'
#2  0xb6a0fb73 in xf86libinput_parse_options (pInfo=0x985cae0, driver_data=0x985cb68, device=0x0) at xf86libinput.c:2565
        options = 0x985cbb0
#3  0xb6a107bc in xf86libinput_pre_init (drv=0x97dc400, pInfo=0x985cae0, flags=0) at xf86libinput.c:2903
        driver_data = 0x985cb68
        shared_device = 0x98349c8
        libinput = 0x974cd28
        device = 0x0
        path = 0x97ac450 "/dev/input/event13"
        is_subdevice = true
#4  0x080cf2ea in xf86NewInputDevice (pInfo=0x985cae0, pdev=0xbffb3858, enable=1 '\001') at xf86Xinput.c:900
        drv = 0x97dc400
        dev = 0x0
        paused = 159035048
        rval = <optimized out>
        path = <optimized out>
#5  0xb6a0ff15 in xf86libinput_hotplug_device (hotplug=0x9833048) at xf86libinput.c:2664
        dev = 0x82c1fc0 <ClientsWithInput>
        sigstate = 1
#6  0xb6a0ff8b in xf86libinput_hotplug_device_cb (client=0x9391940, closure=0x9833048) at xf86libinput.c:2686
        hotplug = 0x9833048
#7  0x08081e06 in ProcessWorkQueue () at dixutils.c:526
        q = 0x9834cb0
        p = 0x82bb978 <workQueue>
#8  0x081e54cc in WaitForSomething (pClientsReady=0x97478d0) at WaitFor.c:176
        i = <optimized out>
        waittime = {tv_sec = 183, tv_usec = 447637}
        wt = 0xbffb38f4
        timeout = <optimized out>
        clientsReadable = {fds_bits = {0 <repeats 32 times>}}
        clientsWritable = {fds_bits = {0 <repeats 32 times>}}
        selecterr = <optimized out>
        nready = 0
        devicesReadable = {fds_bits = {0 <repeats 32 times>}}
        now = <optimized out>
        someReady = 0
#9  0x0807cb44 in Dispatch () at dispatch.c:359
        clientReady = 0x97478d0
        result = <optimized out>
        client = <optimized out>
        nready = <optimized out>
        icheck = 0x82bb658 <checkForInput>
        start_tick = <optimized out>
#10 0x08080fdc in dix_main (argc=8, argv=0xbffb3cd4, envp=0xbffb3cf8) at main.c:300
        i = <optimized out>
        alwaysCheckForInput = {0, 1}
#11 0x0806a92a in main (argc=8, argv=0xbffb3cd4, envp=0xbffb3cf8) at stubmain.c:34
No locals.