. Thread 1 (LWP 741): #0 0x00007f1b434bff79 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 resultvar = 0 pid = 741 selftid = 741 #1 0x00007f1b434c3388 in __GI_abort () at abort.c:89 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {10370384, 124, 139755075919102, 4294967296, 0, 140733193388032, 253403071003, 0, 139755073603424, 4294967296, 139755075915390, 0, 10316056, 4294967296, 10379368, 10375376}}, sa_flags = 10305105, sa_restorer = 0x426d47} sigs = {__val = {32, 0 }} #2 0x00007f1b440d057b in cgmanager_list_children_sync (parent=parent@entry=0x0, proxy=0x0, controller=controller@entry=0x426d47 "systemd", cgroup=cgroup@entry=0x9d3e51 "user/1000.user/c2.session", output=output@entry=0x7ffffff78078) at cgmanager-client.c:6323 method_call = iter = {dummy1 = 0x0, dummy2 = 0x7f1b43ca191d , dummy3 = 0, dummy4 = 0, dummy5 = 0, dummy6 = 0, dummy7 = 0, dummy8 = 0, dummy9 = -557088, dummy10 = 32767, dummy11 = 10370880, pad1 = 0, pad2 = 10370880, pad3 = 0x9e3f30} error = {name = 0x0, message = 0x9dff20 "@~\235", dummy1 = 0, dummy2 = 0, dummy3 = 0, dummy4 = 0, dummy5 = 1, padding1 = 0x9e3f60} reply = output_local = output_local_iter = {dummy1 = 0x9e3f40, dummy2 = 0x7f1b43eab2bf , dummy3 = 131180, dummy4 = 0, dummy5 = 0, dummy6 = 0, dummy7 = 10370880, dummy8 = 0, dummy9 = 10379776, dummy10 = 0, dummy11 = 10370880, pad1 = 0, pad2 = 10370880, pad3 = 0x7ffffff78008} output_local_size = __FUNCTION__ = "cgmanager_list_children_sync" #3 0x0000000000422880 in cgm_list_children (controller=0x426d47 "systemd", cgroup_path=0x9d3e51 "user/1000.user/c2.session", cgroup_path@entry=0x9d3e50 "/user/1000.user/c2.session", children=children@entry=0x7ffffff78078) at ../src/shared/cgmanager.c:194 __func__ = "cgm_list_children" #4 0x0000000000420ff3 in cg_trim (controller=controller@entry=0x425c0a "name=systemd", path=0x9d3e50 "/user/1000.user/c2.session", delete_root=delete_root@entry=false) at ../src/shared/cgroup-util.c:750 fs = 0x0 r = 0 children = 0x0 i = 0 p1 = 0x0 __PRETTY_FUNCTION__ = "cg_trim" #5 0x000000000040fdb0 in session_terminate_cgroup (s=0x9e3740) at ../src/login/logind-session.c:625 r = k = #6 session_stop (s=s@entry=0x9e3740) at ../src/login/logind-session.c:709 __PRETTY_FUNCTION__ = "session_stop" __func__ = "session_stop" #7 0x00000000004095a0 in manager_dispatch_other (fd=21, m=0x9d3010) at ../src/login/logind.c:1257 s = 0x9e3740 i = b = #8 manager_run (m=m@entry=0x9d3010) at ../src/login/logind.c:1790 event = {events = 16, data = {ptr = 0x1b, fd = 27, u32 = 27, u64 = 27}} n = msec = __PRETTY_FUNCTION__ = "manager_run" __func__ = "manager_run" #9 0x00000000004061dc in main (argc=, argv=) at ../src/login/logind.c:1867 m = 0x9d3010 r = 0 __func__ = "main"