[lttng-dev] make a trace_event in a module (driver)

Sun Dec 15 13:22:32 EST 2013

Hello,

now its work!
i have download the new lttng-tools. (git pull)

the next problem:
with
sudo insmod 
/lib/modules/3.8.0-29-generic/extra/addons/lttng-trace-events-sample.ko
and
lttng list -k
hurray! i see the new event!
now i start a lttng session and load the trace-events-sample.ko 
(compiling the sample in the linux source code)
but i see not the event in the session. (looking in the eclipse viewer)
what i am doing wrong?

Regards,
Klaus

Am 02.12.2013 21:56, schrieb Jérémie Galarneau:
> On Tue, Nov 26, 2013 at 12:32 PM, Klaus Dannecker
> <klaus.dannecker at gmx.de> wrote:
>> Am 25.11.2013 20:22, schrieb Thibault, Daniel:
>>
>>>> Date: Mon, 25 Nov 2013 12:00:14 -0500
>>>> From: J?r?mie Galarneau <jeremie.galarneau at efficios.com>
>>>>>      Aha!  There is one crucial mistake in the ibm.com document: he
>>>>> installs the packages in the wrong order.  lttng-tools must be installed
>>>>> AFTER lttng-modules and lttng-ust.  lttng-modules can be installed before,
>>>>> during or after lttng-ust, but userspace-rcu must be installed before
>>>>> lttng-ust.
>>>>>      The problem is that the configure of lttng-tools detects the
>>>>> presence or absence of lttng-modules and also detects the presence or
>>>>> absence of lttng-ust, and adjusts to both.  By installing lttng-tools before
>>>>> lttng-modules, you've built an lttng-tools set that CANNOT be used to trace
>>>>> the kernel.
>>>>>
>>>>>      So, try again from scratch, making sure to install lttng-tools last.
>>>> lttng-tools checks for kernel modules at run time, not at configure time.
>>>> You can safely install lttng-modules after lttng-tools and still use kernel
>>>> tracing.
>>>>
>>>> Regards,
>>>> Jérémie
>>>      Dang, you're right.  The build of lttng-tools reacts to the presence
>>> or absence of lttng-ust, but is indifferent to the presence or absence of
>>> lttng-modules.  (Only liblttng-ctl.a is different, probably some internal
>>> timestamps or some such)
>>>
>>>> klaus at ubuntu:~$ sudo lttng -vvv start
>>>> DEBUG2 [2854/2854]: Config file path found: /home/klaus (in
>>>> get_session_name() at utils.c:57)
>>>> DEBUG1 [2854/2854]: Session name found: auto-20131124-091639 (in
>>>> get_session_name() at utils.c:58)
>>>> DEBUG1 [2854/2854]: Starting tracing for session auto-20131124-091639 (in
>>>> start_tracing() at commands/start.c:81)
>>>> DEBUG1 [2854/2854]: LSM cmd type : 16 (in send_session_msg() at
>>>> lttng-ctl.c:131)
>>>> 'ctrl c'
>>>> klaus at ubuntu:~$
>>>      Let's try to identify the module responsible.  First, make sure
>>> lttng-sessiond is NOT running.  Then, do this in one shell:
>>>
>>> $ sudo -H lttng-sessiond -vvv
>>>
>>>      It should fail after loading one of the modules.
>>>
>>>      You can also try:
>>>
>>> $ sudo -H lttng-sessiond -vvv --no-kernel
>>>
>>>      In which case you should be able to do any lttng command except those
>>> involving the kernel.  For example, 'lttng list -u'.
>> here the output:
>> klaus at ubuntu:~$ sudo -H lttng-sessiond -vvv
>> [sudo] password for klaus:
>> DEBUG3 [2643/2643]: Creating LTTng run directory: /var/run/lttng (in
>> create_lttng_rundir() at main.c:4267)
>> DEBUG2 [2643/2643]: Kernel consumer err path:
>> /var/run/lttng/kconsumerd/error (in main() at main.c:4708)
>> DEBUG2 [2643/2643]: Kernel consumer cmd path:
>> /var/run/lttng/kconsumerd/command (in main() at main.c:4710)
>> DEBUG1 [2643/2643]: Client socket path /var/run/lttng/client-lttng-sessiond
>> (in main() at main.c:4763)
>> DEBUG1 [2643/2643]: Application socket path /var/run/lttng/lttng-ust-sock-5
>> (in main() at main.c:4764)
>> DEBUG1 [2643/2643]: Application wait path /lttng-ust-wait-5 (in main() at
>> main.c:4765)
>> DEBUG1 [2643/2643]: LTTng run directory path: /var/run/lttng (in main() at
>> main.c:4766)
>> DEBUG2 [2643/2643]: UST consumer 32 bits err path:
>> /var/run/lttng/ustconsumerd32/error (in main() at main.c:4775)
>> DEBUG2 [2643/2643]: UST consumer 32 bits cmd path:
>> /var/run/lttng/ustconsumerd32/command (in main() at main.c:4777)
>> DEBUG2 [2643/2643]: UST consumer 64 bits err path:
>> /var/run/lttng/ustconsumerd64/error (in main() at main.c:4786)
>> DEBUG2 [2643/2643]: UST consumer 64 bits cmd path:
>> /var/run/lttng/ustconsumerd64/command (in main() at main.c:4788)
>> DEBUG3 [2643/2643]: Created hashtable size 4 at 0x9355080 of type 1 (in
>> lttng_ht_new() at hashtable.c:127)
>> DEBUG3 [2643/2643]: Created hashtable size 4 at 0x9355270 of type 1 (in
>> lttng_ht_new() at hashtable.c:127)
>> DEBUG3 [2643/2643]: Created hashtable size 4 at 0x9355498 of type 1 (in
>> lttng_ht_new() at hashtable.c:127)
>> DEBUG3 [2643/2643]: Created hashtable size 4 at 0x93556c0 of type 1 (in
>> lttng_ht_new() at hashtable.c:127)
>> DEBUG2 [2643/2643]: Creating consumer directory: /var/run/lttng/kconsumerd
>> (in set_consumer_sockets() at main.c:4309)
>> Warning: No tracing group detected
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-tracer (in
>> modprobe_lttng_control() at modprobe.c:192)
>> DEBUG2 [2643/2643]: Kernel tracer version validated (major version 2) (in
>> kernel_validate_version() at kernel.c:700)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-ftrace (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-kprobes (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-kretprobes (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-lib-ring-buffer (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-ring-buffer-client-discard
>> (in modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-ring-buffer-client-overwrite
>> (in modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-ring-buffer-metadata-client
>> (in modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully
>> lttng-ring-buffer-client-mmap-discard (in modprobe_lttng_data() at
>> modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully
>> lttng-ring-buffer-client-mmap-overwrite (in modprobe_lttng_data() at
>> modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully
>> lttng-ring-buffer-metadata-mmap-client (in modprobe_lttng_data() at
>> modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-types (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-asoc (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-block (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-btrfs (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-compaction (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-ext3 (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-ext4 (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-gpio (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-irq (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-jbd (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-jbd2 (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-kmem (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-kvm (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-kvm-x86 (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-kvm-x86-mmu (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-lock (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-module (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-napi (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-net (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-power (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-printk (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-random (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-rcu (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-regmap (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-regulator (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-rpm (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-sched (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-scsi (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-signal (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-skb (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-sock (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-statedump (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-sunrpc (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-timer (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-udp (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-vmscan (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-workqueue (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Modprobe successfully lttng-probe-writeback (in
>> modprobe_lttng_data() at modprobe.c:228)
>> DEBUG1 [2643/2643]: Kernel tracer fd 6 (in init_kernel_tracer() at
>> main.c:2364)
>> DEBUG2 [2643/2643]: Creating consumer directory:
>> /var/run/lttng/ustconsumerd64 (in set_consumer_sockets() at main.c:4309)
>> DEBUG2 [2643/2643]: Creating consumer directory:
>> /var/run/lttng/ustconsumerd32 (in set_consumer_sockets() at main.c:4309)
>> DEBUG3 [2643/2643]: Session daemon client socket 9 and application socket 10
>> created (in init_daemon_socket() at main.c:4175)
>> DEBUG1 [2643/2643]: All permissions are set (in set_permissions() at
>> main.c:4255)
>> DEBUG3 [2643/2643]: Created hashtable size 4 at 0x9357148 of type 2 (in
>> lttng_ht_new() at hashtable.c:127)
>> DEBUG3 [2643/2643]: Global buffer per UID registry initialized (in
>> buffer_reg_init_uid_registry() at buffer-registry.c:99)
>> DEBUG3 [2643/2643]: Created hashtable size 4 at 0x9357370 of type 2 (in
>> lttng_ht_new() at hashtable.c:127)
>> DEBUG3 [2643/2643]: Global buffer per PID registry initialized (in
>> buffer_reg_init_pid_registry() at buffer-registry.c:220)
>> DEBUG1 [2643/2643]: epoll set max size is 327869 (in
>> compat_epoll_set_max_size() at compat-epoll.c:280)
>> DEBUG1 [2643/2643]: Command subsystem initialized (in cmd_init() at
>> cmd.c:3056)
>> DEBUG1 [2643/2643]: Pid 2643 written in file
>> /var/run/lttng/lttng-sessiond.pid (in utils_create_pid_file() at
>> utils.c:437)
>> DEBUG1 [2643/2643]: Pid 5345 written in file /var/run/lttng/jul.port (in
>> utils_create_pid_file() at utils.c:437)
>> DEBUG1 [2643/2643]: TCP inet operation timeout set to 216 sec (in
>> lttcomm_inet_init() at inet.c:529)
>> DEBUG1 [2643/2643]: Health check time delta in seconds set to 236 (in
>> health_init() at health.c:73)
>> DEBUG1 [2643/2743]: [thread] Manage health check started (in
>> thread_manage_health() at main.c:3511)
>> DEBUG1 [2643/2744]: [thread] Manage client started (in
>> thread_manage_clients() at main.c:3695)
>> DEBUG1 [2643/2745]: [thread] Dispatch UST command started (in
>> thread_dispatch_ust_registration() at main.c:1543)
>> DEBUG1 [2643/2747]: [thread] Manage application started (in
>> thread_manage_apps() at main.c:1256)
>> DEBUG1 [2643/2746]: [thread] Manage application registration started (in
>> thread_registration_apps() at main.c:1766)
>> DEBUG1 [2643/2742]: [ht-thread] startup. (in thread_ht_cleanup() at
>> ht-cleanup.c:35)
>> DEBUG3 [2643/2742]: [ht-thread] Polling on 2 fds. (in thread_ht_cleanup() at
>> ht-cleanup.c:59)
>> DEBUG1 [2643/2746]: Notifying applications of session daemon state: 1 (in
>> notify_ust_apps() at main.c:593)
>> DEBUG1 [2643/2746]: Got the wait shm fd 24 (in get_wait_shm() at shm.c:115)
>> DEBUG1 [2643/2746]: Futex wait update active 1 (in futex_wait_update() at
>> futex.c:63)
>> DEBUG1 [2643/2744]: Accepting client command ... (in thread_manage_clients()
>> at main.c:3747)
>> DEBUG1 [2643/2743]: Health check ready (in thread_manage_health() at
>> main.c:3574)
>> DEBUG1 [2643/2746]: Accepting application registration (in
>> thread_registration_apps() at main.c:1803)
>> DEBUG1 [2643/2749]: [jul-thread] Manage JUL application registration. (in
>> jul_thread_manage_registration() at jul-thread.c:250)
>> DEBUG3 [2643/2749]: URI string: tcp://localhost (in uri_parse() at
>> uri.c:291)
>> DEBUG1 [2643/2748]: [ust-thread] Manage application notify command (in
>> ust_thread_manage_notify() at ust-thread.c:38)
>> DEBUG3 [2643/2748]: [ust-thread] Manage notify polling on 2 fds (in
>> ust_thread_manage_notify() at ust-thread.c:63)
>> DEBUG2 [2643/2749]: IP address resolved to 127.0.0.1 (in set_ip_address() at
>> uri.c:132)
>> DEBUG1 [2643/2745]: Futex n to 1 prepare done (in futex_nto1_prepare() at
>> futex.c:75)
>> DEBUG1 [2643/2745]: Woken up but nothing in the UST command queue (in
>> thread_dispatch_ust_registration() at main.c:1566)
>> DEBUG1 [2643/2747]: Apps thread polling on 2 fds (in thread_manage_apps() at
>> main.c:1286)
>> DEBUG1 [2643/2750]: [thread] Thread manage kernel started (in
>> thread_manage_kernel() at main.c:794)
>> DEBUG1 [2643/2750]: Updating kernel poll set (in update_kernel_poll() at
>> main.c:654)
>> DEBUG1 [2643/2750]: Thread kernel polling on 2 fds (in
>> thread_manage_kernel() at main.c:839)
>> DEBUG3 [2643/2749]: URI dtype: 1, proto: 1, host: localhost, subdir: , ctrl:
>> 0, data: 0 (in uri_parse() at uri.c:505)
>> DEBUG1 [2643/2749]: [jul-thread] Listening on TCP port 5345 and socket 28
>> (in init_tcp_socket() at jul-thread.c:153)
>> DEBUG3 [2643/2749]: [jul-thread] Manage JUL polling on 2 fds (in
>> jul_thread_manage_registration() at jul-thread.c:278)
>>
>> ---Terminal 2
>> klaus at ubuntu:~$ sudo lttng create
>> [sudo] password for klaus:
>> Session auto-20131126-090721 created.
>> Traces will be written in /home/klaus/lttng-traces/auto-20131126-090721
>> ---
>>
>>
>> DEBUG1 [2643/2744]: Wait for client response (in thread_manage_clients() at
>> main.c:3789)
>> DEBUG1 [2643/2744]: Receiving data from client ... (in
>> thread_manage_clients() at main.c:3834)
>> DEBUG1 [2643/2744]: Nothing recv() from client... continuing (in
>> thread_manage_clients() at main.c:3838)
>> DEBUG1 [2643/2744]: Clean command context structure (in clean_command_ctx()
>> at main.c:573)
>> DEBUG1 [2643/2744]: Accepting client command ... (in thread_manage_clients()
>> at main.c:3747)
>> DEBUG1 [2643/2744]: Wait for client response (in thread_manage_clients() at
>> main.c:3789)
>> DEBUG1 [2643/2744]: Receiving data from client ... (in
>> thread_manage_clients() at main.c:3834)
>> DEBUG1 [2643/2744]: Processing client command 8 (in process_client_msg() at
>> main.c:2603)
>> DEBUG1 [2643/2744]: Waiting for 1 URIs from client ... (in
>> process_client_msg() at main.c:3167)
>> DEBUG2 [2643/2744]: Trying to find session by name auto-20131126-090721 (in
>> session_find_by_name() at session.c:133)
>> DEBUG3 [2643/2744]: Created hashtable size 4 at 0xb3305a28 of type 1 (in
>> lttng_ht_new() at hashtable.c:127)
>> DEBUG1 [2643/2744]: Tracing session auto-20131126-090721 created with ID 0
>> by UID 0 GID 0 (in session_create() at session.c:234)
>> DEBUG2 [2643/2744]: Trying to find session by name auto-20131126-090721 (in
>> session_find_by_name() at session.c:133)
>> DEBUG3 [2643/2744]: Created hashtable size 4 at 0xb330aca0 of type 1 (in
>> lttng_ht_new() at hashtable.c:127)
>> DEBUG2 [2643/2744]: Setting trace directory path from URI to
>> /home/klaus/lttng-traces/auto-20131126-090721 (in add_uri_to_consumer() at
>> cmd.c:481)
>> DEBUG1 [2643/2744]: Sending response (size: 16, retcode: Success) (in
>> thread_manage_clients() at main.c:3883)
>> DEBUG1 [2643/2744]: Clean command context structure (in clean_command_ctx()
>> at main.c:573)
>> DEBUG1 [2643/2744]: Accepting client command ... (in thread_manage_clients()
>> at main.c:3747)
>>
>> ---Terminal 2
>> klaus at ubuntu:~$ sudo lttng enable-event -k -a
>> All Kernel events are enabled in channel channel0
>> ---
>>
>>
>> DEBUG1 [2643/2744]: Wait for client response (in thread_manage_clients() at
>> main.c:3789)
>> DEBUG1 [2643/2744]: Receiving data from client ... (in
>> thread_manage_clients() at main.c:3834)
>> DEBUG1 [2643/2744]: Nothing recv() from client... continuing (in
>> thread_manage_clients() at main.c:3838)
>> DEBUG1 [2643/2744]: Clean command context structure (in clean_command_ctx()
>> at main.c:573)
>> DEBUG1 [2643/2744]: Accepting client command ... (in thread_manage_clients()
>> at main.c:3747)
>> DEBUG1 [2643/2744]: Wait for client response (in thread_manage_clients() at
>> main.c:3789)
>> DEBUG1 [2643/2744]: Receiving data from client ... (in
>> thread_manage_clients() at main.c:3834)
>> DEBUG1 [2643/2744]: Processing client command 6 (in process_client_msg() at
>> main.c:2603)
>> DEBUG1 [2643/2744]: Getting session auto-20131126-090721 by name (in
>> process_client_msg() at main.c:2682)
>> DEBUG2 [2643/2744]: Trying to find session by name auto-20131126-090721 (in
>> session_find_by_name() at session.c:133)
>> DEBUG1 [2643/2744]: Creating kernel session (in create_kernel_session() at
>> main.c:2519)
>> DEBUG3 [2643/2744]: Created hashtable size 4 at 0xb33038b0 of type 1 (in
>> lttng_ht_new() at hashtable.c:127)
>> DEBUG1 [2643/2744]: Kernel session created (fd: 30) (in
>> kernel_create_session() at kernel.c:109)
>> DEBUG3 [2643/2744]: Copying tracing session consumer output in kernel
>> session (in copy_session_consumer() at main.c:2414)
>> DEBUG3 [2643/2744]: Created hashtable size 4 at 0xb3303ad8 of type 1 (in
>> lttng_ht_new() at hashtable.c:127)
>> DEBUG3 [2643/2744]: Copy session consumer subdir /kernel (in
>> copy_session_consumer() at main.c:2450)
>> DEBUG3 [2643/2744]: mkdir() recursive
>> /home/klaus/lttng-traces/auto-20131126-090721 with mode 504 for uid 0 and
>> gid 0 (in run_as_mkdir_recursive() at runas.c:294)
>> DEBUG1 [2643/2744]: Using run_as_clone (in run_as() at runas.c:277)
>> DEBUG3 [2643/2742]: [ht-thread] Polling on 2 fds. (in thread_ht_cleanup() at
>> ht-cleanup.c:59)
>> DEBUG1 [2643/2744]: Spawning consumerd (in spawn_consumerd() at main.c:2120)
>> DEBUG2 [2643/2744]: Consumer pid 2866 (in start_consumerd() at main.c:2306)
>> DEBUG2 [2643/2744]: Spawning consumer control thread (in start_consumerd()
>> at main.c:2309)
>> DEBUG1 [2643/2867]: [thread] Manage consumer started (in
>> thread_manage_consumer() at main.c:959)
>> DEBUG3 [2866/2866]: Looking for a kernel consumer at these locations: (in
>> spawn_consumerd() at main.c:2139)
>> DEBUG3 [2866/2866]:     1)  (in spawn_consumerd() at main.c:2140)
>> DEBUG3 [2866/2866]:     2) /usr/local/lib/lttng/libexec/lttng-consumerd (in
>> spawn_consumerd() at main.c:2141)
>> DEBUG3 [2866/2866]:     3) /usr/local/lib/lttng/libexec/lttng-consumerd (in
>> spawn_consumerd() at main.c:2142)
>> DEBUG3 [2866/2866]: Found location #2 (in spawn_consumerd() at main.c:2147)
>> DEBUG1 [2866/2866]: Using kernel consumer at:
>> /usr/local/lib/lttng/libexec/lttng-consumerd (in spawn_consumerd() at
>> main.c:2156)
>> DEBUG2 [2643/2867]: Receiving code from consumer err_sock (in
>> thread_manage_consumer() at main.c:1044)
>> DEBUG1 [2643/2867]: Consumer command socket ready (fd: 33 (in
>> thread_manage_consumer() at main.c:1079)
>> DEBUG1 [2643/2867]: Consumer metadata socket ready (fd: 34) (in
>> thread_manage_consumer() at main.c:1081)
>> DEBUG3 [2643/2744]: Consumer socket created (fd: 33) and added to output (in
>> consumer_create_socket() at consumer.c:299)
>> DEBUG1 [2643/2744]: Setting relayd for session auto-20131126-090721 (in
>> cmd_setup_relayd() at cmd.c:722)
>> DEBUG1 [2643/2744]: Trying to find channel channel0 (in
>> trace_kernel_get_channel_by_name() at trace-kernel.c:48)
>> DEBUG1 [2643/2744]: Enabling channel  for session auto-20131126-090721 (in
>> cmd_enable_channel() at cmd.c:910)
>> DEBUG1 [2643/2744]: Trying to find channel channel0 (in
>> trace_kernel_get_channel_by_name() at trace-kernel.c:48)
>> DEBUG3 [2643/2744]: Kernel create channel  with attr: 0, 262144, 4, 0,
>> 200000, 0, 0 (in kernel_create_channel() at kernel.c:143)
>> Warning: No tracing group detected
>> DEBUG1 [2643/2744]: Kernel channel channel0 created (fd: 35) (in
>> kernel_create_channel() at kernel.c:165)
>> DEBUG1 [2643/2744]: Kernel quiescent wait on 6 (in kernel_wait_quiescent()
>> at kernel.c:429)
>> DEBUG1 [2643/2750]: Updating kernel poll set (in update_kernel_poll() at
>> main.c:654)
>> DEBUG1 [2643/2744]: Trying to find channel channel0 (in
>> trace_kernel_get_channel_by_name() at trace-kernel.c:48)
>> DEBUG1 [2643/2744]: Found channel by name channel0 (in
>> trace_kernel_get_channel_by_name() at trace-kernel.c:52)
>> DEBUG1 [2643/2744]: Event  created (fd: 36) (in kernel_create_event() at
>> kernel.c:236)
>> DEBUG1 [2643/2744]: Kernel quiescent wait on 6 (in kernel_wait_quiescent()
>> at kernel.c:429)
>> DEBUG1 [2643/2744]: Sending response (size: 16, retcode: Success) (in
>> thread_manage_clients() at main.c:3883)
>> DEBUG1 [2643/2744]: Clean command context structure (in clean_command_ctx()
>> at main.c:573)
>> DEBUG1 [2643/2744]: Accepting client command ... (in thread_manage_clients()
>> at main.c:3747)
>> DEBUG1 [2643/2750]: Channel fd 35 added to kernel set (in
>> update_kernel_poll() at main.c:672)
>> DEBUG1 [2643/2750]: Thread kernel polling on 3 fds (in
>> thread_manage_kernel() at main.c:839)
>> DEBUG1 [2643/2750]: Updating kernel streams for channel fd 35 (in
>> update_kernel_stream() at main.c:698)
>> DEBUG1 [2643/2750]: Channel found, updating kernel streams (in
>> update_kernel_stream() at main.c:711)
>> DEBUG1 [2643/2750]: Kernel stream channel0_0 created (fd: 29, state: 0) (in
>> kernel_open_channel_stream() at kernel.c:562)
>> DEBUG1 [2643/2750]: Kernel stream channel0_1 created (fd: 37, state: 0) (in
>> kernel_open_channel_stream() at kernel.c:562)
>> DEBUG1 [2643/2750]: Thread kernel polling on 3 fds (in
>> thread_manage_kernel() at main.c:839)
>>
>> ---Terminal 2
>> klaus at ubuntu:~$ sudo lttng start
>> now Terminal 2 hangs
>> ----
>>
>> DEBUG1 [2643/2744]: Wait for client response (in thread_manage_clients() at
>> main.c:3789)
>> DEBUG1 [2643/2744]: Receiving data from client ... (in
>> thread_manage_clients() at main.c:3834)
>> DEBUG1 [2643/2744]: Nothing recv() from client... continuing (in
>> thread_manage_clients() at main.c:3838)
>> DEBUG1 [2643/2744]: Clean command context structure (in clean_command_ctx()
>> at main.c:573)
>> DEBUG1 [2643/2744]: Accepting client command ... (in thread_manage_clients()
>> at main.c:3747)
>> DEBUG1 [2643/2744]: Wait for client response (in thread_manage_clients() at
>> main.c:3789)
>> DEBUG1 [2643/2744]: Receiving data from client ... (in
>> thread_manage_clients() at main.c:3834)
>> DEBUG1 [2643/2744]: Processing client command 16 (in process_client_msg() at
>> main.c:2603)
>> DEBUG1 [2643/2744]: Getting session auto-20131126-090721 by name (in
>> process_client_msg() at main.c:2682)
>> DEBUG2 [2643/2744]: Trying to find session by name auto-20131126-090721 (in
>> session_find_by_name() at session.c:133)
>> DEBUG1 [2643/2744]: Kernel metadata opened (fd: 39) (in
>> kernel_open_metadata() at kernel.c:389)
>> DEBUG1 [2643/2744]: Kernel metadata stream created (fd: 40) (in
>> kernel_open_metadata_stream() at kernel.c:586)
>> DEBUG1 [2643/2744]: Sending session stream to kernel consumer (in
>> kernel_consumer_send_session() at kernel-consumer.c:338)
>> DEBUG1 [2643/2744]: Sending metadata 40 to kernel consumer (in
>> kernel_consumer_add_metadata() at kernel-consumer.c:158)
>> DEBUG3 [2643/2744]: mkdir() recursive
>> /home/klaus/lttng-traces/auto-20131126-090721/kernel with mode 504 for uid 0
>> and gid 0 (in run_as_mkdir_recursive() at runas.c:294)
>> DEBUG1 [2643/2744]: Using run_as_clone (in run_as() at runas.c:277)
>> DEBUG3 [2643/2744]: Kernel local consumer tracefile path:
>> /home/klaus/lttng-traces/auto-20131126-090721/kernel (in
>> create_channel_path() at kernel-consumer.c:60)
>> DEBUG1 [2643/2744]: Sending streams of channel channel0 to kernel consumer
>> (in kernel_consumer_send_channel_stream() at kernel-consumer.c:288)
>> DEBUG1 [2643/2744]: Kernel consumer adding channel channel0 to kernel
>> consumer (in kernel_consumer_add_channel() at kernel-consumer.c:98)
>> DEBUG3 [2643/2744]: mkdir() recursive
>> /home/klaus/lttng-traces/auto-20131126-090721/kernel with mode 504 for uid 0
>> and gid 0 (in run_as_mkdir_recursive() at runas.c:294)
>> DEBUG1 [2643/2744]: Using run_as_clone (in run_as() at runas.c:277)
>> DEBUG3 [2643/2744]: Kernel local consumer tracefile path:
>> /home/klaus/lttng-traces/auto-20131126-090721/kernel (in
>> create_channel_path() at kernel-consumer.c:60)
>> DEBUG1 [2643/2744]: Sending stream 37 of channel channel0 to kernel consumer
>> (in kernel_consumer_add_stream() at kernel-consumer.c:239)
>> DEBUG1 [2643/2744]: Sending stream 29 of channel channel0 to kernel consumer
>> (in kernel_consumer_add_stream() at kernel-consumer.c:239)
>> DEBUG1 [2643/2744]: Kernel consumer FDs of metadata and channel streams sent
>> (in kernel_consumer_send_session() at kernel-consumer.c:359)
>>
>> --Terminal 2
>> strg C
>> klaus at ubuntu:~$
>> --
>>
>> --Terminal 1
>> no more message
>> strg C
>> DEBUG1 [2643/2643]: SIGINT caught (in sighandler() at main.c:4374)
>> DEBUG1 [2643/2643]: Terminating all threads (in stop_threads() at
>> main.c:370)
>> DEBUG1 [2643/2643]: Futex n to 1 wake done (in futex_nto1_wake() at
>> futex.c:104)
>> DEBUG1 [2643/2750]: Kernel thread dying (in thread_manage_kernel() at
>> main.c:921)
>> DEBUG1 [2643/2748]: Application notify communication apps thread cleanup
>> complete (in ust_thread_manage_notify() at ust-thread.c:175)
>> DEBUG1 [2643/2747]: Application communication apps thread cleanup complete
>> (in thread_manage_apps() at main.c:1394)
>> DEBUG3 [2643/2749]: [jul-thread] 1 fd ready (in
>> jul_thread_manage_registration() at jul-thread.c:293)
>> DEBUG3 [2643/2749]: [jul-thread] Destroy TCP socket on port 5345 (in
>> destroy_tcp_socket() at jul-thread.c:171)
>> DEBUG1 [2643/2749]: [jul-thread] is cleaning up and stopping. (in
>> jul_thread_manage_registration() at jul-thread.c:356)
>> DEBUG3 [2643/2749]: [jul-thread] Cleaning JUL apps ht (in
>> clean_jul_apps_ht() at jul-thread.c:100)
>> DEBUG1 [2643/2867]: consumer thread cleanup completed (in
>> thread_manage_consumer() at main.c:1241)
>> DEBUG1 [2643/2742]: [ust-thread] cleanup complete. (in thread_ht_cleanup()
>> at ht-cleanup.c:130)
>> DEBUG1 [2643/2746]: Notifying applications of session daemon state: 0 (in
>> notify_ust_apps() at main.c:593)
>> DEBUG1 [2643/2743]: Health check thread dying (in thread_manage_health() at
>> main.c:3668)
>> DEBUG1 [2643/2746]: Got the wait shm fd 5 (in get_wait_shm() at shm.c:115)
>> DEBUG1 [2643/2746]: Futex wait update active 0 (in futex_wait_update() at
>> futex.c:63)
>> DEBUG1 [2643/2745]: Futex n to 1 wait done (in futex_nto1_wait() at
>> futex.c:90)
>> DEBUG1 [2643/2745]: Dispatch thread dying (in
>> thread_dispatch_ust_registration() at main.c:1743)
>> DEBUG1 [2643/2643]: SIGINT caught (in sighandler() at main.c:4374)
>> DEBUG1 [2643/2643]: Terminating all threads (in stop_threads() at
>> main.c:370)
>> DEBUG1 [2643/2643]: Futex n to 1 wake done (in futex_nto1_wake() at
>> futex.c:104)
>> DEBUG1 [2643/2746]: UST Registration thread cleanup complete (in
>> thread_registration_apps() at main.c:1959)
>> DEBUG1 [2643/2643]: Cleaning up (in cleanup() at main.c:435)
>> DEBUG1 [2643/2643]: Removing sessiond and consumerd content of directory
>> /var/run/lttng (in cleanup() at main.c:454)
>> DEBUG1 [2643/2643]: Removing /var/run/lttng/lttng-sessiond.pid (in cleanup()
>> at main.c:460)
>> DEBUG1 [2643/2643]: Removing /var/run/lttng/jul.port (in cleanup() at
>> main.c:465)
>> DEBUG1 [2643/2643]: Removing /var/run/lttng/kconsumerd/error (in cleanup()
>> at main.c:472)
>> DEBUG1 [2643/2643]: Removing directory /var/run/lttng/kconsumerd (in
>> cleanup() at main.c:478)
>> DEBUG1 [2643/2643]: Removing /var/run/lttng/ustconsumerd32/error (in
>> cleanup() at main.c:485)
>> DEBUG1 [2643/2643]: Removing directory /var/run/lttng/ustconsumerd32 (in
>> cleanup() at main.c:491)
>> DEBUG1 [2643/2643]: Removing /var/run/lttng/ustconsumerd64/error (in
>> cleanup() at main.c:498)
>> DEBUG1 [2643/2643]: Removing directory /var/run/lttng/ustconsumerd64 (in
>> cleanup() at main.c:504)
>> DEBUG1 [2643/2643]: Cleaning up all sessions (in cleanup() at main.c:515)
>> DEBUG1 [2643/2643]: Tearing down kernel session (in kernel_destroy_session()
>> at kernel.c:755)
>> DEBUG1 [2643/2643]: [trace] Closing session fd 30 (in
>> trace_kernel_destroy_session() at trace-kernel.c:450)
>> DEBUG1 [2643/2643]: [trace] Closing metadata stream fd 40 (in
>> trace_kernel_destroy_session() at trace-kernel.c:460)
>> DEBUG1 [2643/2643]: [trace] Closing metadata fd 39 (in
>> trace_kernel_destroy_metadata() at trace-kernel.c:423)
>>
>> Terminal 1 hangs now !!
>> in other terminal now no lttng call are work!
>>
> I can't reproduce this on a fresh Ubuntu 12.04 Server 64-bit install.
> Are you sure you don't have files from prior versions of LTTng already
> installed or that you are not skipping steps from the IBM guide?
>
> The guide shows how to add your user to the "tracing" group. This
> makes it unnecessary to invoke lttng as root. In your case, only the
> session daemon needs to be started as root.
>
> Jérémie
>
>> when i repeat the comand in other terminal:
>> klaus at ubuntu:~$ sudo -H lttng-sessiond -vvv
>> [sudo] password for klaus:
>> DEBUG3 [3012/3012]: Creating LTTng run directory: /var/run/lttng (in
>> create_lttng_rundir() at main.c:4267)
>> DEBUG2 [3012/3012]: Kernel consumer err path:
>> /var/run/lttng/kconsumerd/error (in main() at main.c:4708)
>> DEBUG2 [3012/3012]: Kernel consumer cmd path:
>> /var/run/lttng/kconsumerd/command (in main() at main.c:4710)
>> DEBUG1 [3012/3012]: Client socket path /var/run/lttng/client-lttng-sessiond
>> (in main() at main.c:4763)
>> DEBUG1 [3012/3012]: Application socket path /var/run/lttng/lttng-ust-sock-5
>> (in main() at main.c:4764)
>> DEBUG1 [3012/3012]: Application wait path /lttng-ust-wait-5 (in main() at
>> main.c:4765)
>> DEBUG1 [3012/3012]: LTTng run directory path: /var/run/lttng (in main() at
>> main.c:4766)
>> DEBUG2 [3012/3012]: UST consumer 32 bits err path:
>> /var/run/lttng/ustconsumerd32/error (in main() at main.c:4775)
>> DEBUG2 [3012/3012]: UST consumer 32 bits cmd path:
>> /var/run/lttng/ustconsumerd32/command (in main() at main.c:4777)
>> DEBUG2 [3012/3012]: UST consumer 64 bits err path:
>> /var/run/lttng/ustconsumerd64/error (in main() at main.c:4786)
>> DEBUG2 [3012/3012]: UST consumer 64 bits cmd path:
>> /var/run/lttng/ustconsumerd64/command (in main() at main.c:4788)
>> Error: Already running daemon.
>>
>> before i use the command sudo lttng start
>> all other lttng command's are work's!
>>
>> Regards,
>> Klaus
>>
>>
>>
>>
>>> Daniel U. Thibault
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>>>
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>>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>>
>>
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>
>