.
Thread 1 (LWP 2195):
#0  0x00007f2326562f79 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 2195
        selftid = 2195
#1  0x00007f2326566388 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7fff5ba60a10, sa_sigaction = 0x7fff5ba60a10}, sa_mask = {__val = {139788949684362, 1, 140734730996368, 5, 20668864, 5832576001, 20670304, 0, 0, 1, 0, 0, 0, 1, 0, 4389805}}, sa_flags = 0, sa_restorer = 0x7fff5ba60af0}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f2326f599f1 in nih_error_get () at error.c:320
        error = <optimized out>
        __FUNCTION__ = "nih_error_get"
#3  0x0000000000422445 in cgm_dbus_connect () at ../src/shared/cgmanager.c:47
        nerr = <optimized out>
        dbus_error = {name = 0x13b6690 "org.freedesktop.DBus.Error.FileNotFound", message = 0x13b67c0 "Failed to connect to socket /sys/fs/cgroup/cgmanager/sock: No such file or directory", dummy1 = 0, dummy2 = 0, dummy3 = 0, dummy4 = 0, dummy5 = 0, padding1 = 0x0}
        connection = 0x0
        __func__ = "cgm_dbus_connect"
#4  0x000000000041fc5b in check_hierarchy (p=p@entry=0x13b62a0 "blkio") at ../src/shared/cgroup-util.c:656
        cc = <optimized out>
        r = <optimized out>
        __PRETTY_FUNCTION__ = "check_hierarchy"
#5  0x0000000000422298 in cg_shorten_controllers (controllers=0x13b6700) at ../src/shared/cgroup-util.c:1493
        p = 0x13b62a0 "blkio"
        r = <optimized out>
        f = 0x13b6700
        t = 0x13b6700
        __func__ = "cg_shorten_controllers"
#6  0x0000000000408b9a in manager_startup (m=m@entry=0x13b6010) at ../src/login/logind.c:1642
        r = <optimized out>
        seat = <optimized out>
        session = <optimized out>
        user = <optimized out>
        inhibitor = <optimized out>
        i = 0x7fff5ba60cb0
        __PRETTY_FUNCTION__ = "manager_startup"
#7  0x00000000004061e5 in main (argc=<optimized out>, argv=<optimized out>) at ../src/login/logind.c:1855
        m = 0x13b6010
        r = <optimized out>
        __func__ = "main"