On Sat, Jul 22, 2017 at 3:28 AM, danielos <guacam...@dan-tech.pl> wrote: > I managed to install gdb in guacd container: > > ----------------------------- > > [root@480dcc5d723f /]# top > top - 10:44:32 up 104 days, 23:28, 0 users, load average: 1.66, 1.95, 1.65 > Tasks: 4 total, 1 running, 3 sleeping, 0 stopped, 0 zombie > %Cpu(s): 4.7 us, 0.7 sy, 0.0 ni, 93.8 id, 0.8 wa, 0.0 hi, 0.0 si, 0.0 > st > KiB Mem : 32714444 total, 4350124 free, 4299328 used, 24064992 buff/cache > KiB Swap: 1048572 total, 993004 free, 55568 used. 27710752 avail Mem > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 32 root 20 0 495456 45820 9360 S 100.0 0.1 132:28.00 guacd > 1 root 20 0 295568 15732 5332 S 0.0 0.0 0:01.08 guacd > 39 root 20 0 11880 2996 2584 S 0.0 0.0 0:00.00 bash > 178 root 20 0 52004 3888 3308 R 0.0 0.0 0:00.00 top > > ----------------------------- > > > [root@480dcc5d723f /]# gdb -batch -ex bt -p 32 > [New LWP 38] > [New LWP 36] > [Thread debugging using libthread_db enabled] > Using host libthread_db library "/lib64/libthread_db.so.1". > 0x00007f328ab93ef7 in pthread_join () from /lib64/libpthread.so.0 > #0 0x00007f328ab93ef7 in pthread_join () from /lib64/libpthread.so.0 > #1 0x00007f32820aa859 in guac_vnc_client_free_handler > (client=0x7f327c00abc0) at client.c:71 > #2 0x00007f328b554b72 in guac_client_free (client=0x7f327c00abc0) at > client.c:193 > #3 0x0000000000404310 in guacd_exec_proc (protocol=0x7f327c002b63 "vnc", > proc=0x7f327c00aba0) at proc.c:191 > #4 guacd_create_proc (protocol=protocol@entry=0x7f327c002b63 "vnc") at > proc.c:253 > #5 0x0000000000403a80 in guacd_route_connection (socket=0x7f327c00ad10, > map=0x7f328bacd010) at connection.c:299 > #6 guacd_connection_thread (data=0x251e450) at connection.c:394 > #7 0x00007f328ab92dc5 in start_thread () from /lib64/libpthread.so.0 > #8 0x00007f3289b6173d in clone () from /lib64/libc.so.6 > [root@480dcc5d723f /]# >
guacd and its per-connection processes use multiple threads, so this backtrace does not necessarily represent where things are spinning. Rather than just running "bt", please try "thread apply all bt". That will run bt for all running threads within the process. - Mike
