Hi group,
I'm a bit frustrated not passing the hello world level.
But I'm eager to get access to this nice tooling.
But I'm eager to get access to this nice tooling.
For now I'm assuming problems in access rights or
may be a 32/64bit library mismatch. Here my stackoverflow
post which wasn't responded. Hope I'll get a push here.
may be a 32/64bit library mismatch. Here my stackoverflow
post which wasn't responded. Hope I'll get a push here.
thanks
Wolfgang R.
Wolfgang R.
========================================================
LTTng at the very beginning
just at step zero of using lttng but can't pass it. Hope a small hint gives me a push.
Trying the run the most simple demo of the distribution lttng-ust/doc/examples/demo.
cat README
...
The simplest command to trace the demo program are:
lttng create
lttng enable-event -u -a
lttng start
./demo-trace
lttng destroy
That will create a trace in your $HOME/lttng-traces directory.
...
...
The simplest command to trace the demo program are:
lttng create
lttng enable-event -u -a
lttng start
./demo-trace
lttng destroy
That will create a trace in your $HOME/lttng-traces directory.
...
Put my user lttng-sessiond in verbose mode and can talk to it. Here the state when the demo-trace starts
row@cobra7:/$ lttng list auto-20150313-091148
Tracing session auto-20150313-091148: [active]
Trace path: /home/local/ESG_GMBH/row/lttng-traces/auto-20150313-091148
Tracing session auto-20150313-091148: [active]
Trace path: /home/local/ESG_GMBH/row/lttng-traces/auto-20150313-091148
=== Domain: UST global ===
Buffer type: per UID
Channels:
-------------
- channel0: [enabled]
-------------
- channel0: [enabled]
Attributes:
overwrite mode: 0
subbufers size: 131072
number of subbufers: 4
switch timer interval: 0
read timer interval: 0
output: mmap()
overwrite mode: 0
subbufers size: 131072
number of subbufers: 4
switch timer interval: 0
read timer interval: 0
output: mmap()
Events:
* (type: tracepoint) [enabled]
* (type: tracepoint) [enabled]
Executing the demo-trace shows no reaction in the daemon shell and no output file created. Below the client log.
I can't see any problem reported and don't know what to check next.
thanks in advance for feedback
Wolfgang R.
row@cobra7:~/lttng_source/lttng-ust/doc/examples/demo$ export LD_LIBRARY_PATH=/lib:/usr/lib:/usr/local/lib
row@cobra7:~/lttng_source/lttng-ust/doc/examples/demo$ ./demo-trace
liblttng_ust_tracepoint[17268/17268]: just registered a tracepoints section from 0xb754f780 and having 2 tracepoints (in tracepoint_register_lib() at tracepoint.c:767)
liblttng_ust_tracepoint[17268/17268]: registered tracepoint: ust_baddr_statedump:soinfo (in tracepoint_register_lib() at tracepoint.c:772)
liblttng_ust_tracepoint[17268/17268]: registered tracepoint: lttng_ust_tracef:event (in tracepoint_register_lib() at tracepoint.c:772)
libust[17268/17268]: Provider "ust_baddr_statedump" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: adding probe ust_baddr_statedump containing 1 events to lazy registration list (in lttng_probe_register() at lttng-probes.c:216)
libust[17268/17268]: LTT : ltt ring buffer client "relay-metadata-mmap" init
(in lttng_ring_buffer_metadata_client_init() at lttng-ring-buffer-metadata-client.h:330)
libust[17268/17268]: LTT : ltt ring buffer client "relay-overwrite-mmap" init
(in lttng_ring_buffer_client_overwrite_init() at lttng-ring-buffer-client.h:681)
libust[17268/17268]: LTT : ltt ring buffer client "relay-overwrite-rt-mmap" init
(in lttng_ring_buffer_client_overwrite_rt_init() at lttng-ring-buffer-client.h:681)
libust[17268/17268]: LTT : ltt ring buffer client "relay-discard-mmap" init
(in lttng_ring_buffer_client_discard_init() at lttng-ring-buffer-client.h:681)
libust[17268/17268]: LTT : ltt ring buffer client "relay-discard-rt-mmap" init
(in lttng_ring_buffer_client_discard_rt_init() at lttng-ring-buffer-client.h:681)
libust[17268/17269]: Info: sessiond not accepting connections to global apps socket (in ust_listener_thread() at lttng-ust-comm.c:1221)
libust[17268/17269]: Waiting for global apps sessiond (in wait_for_sessiond() at lttng-ust-comm.c:1132)
libust[17268/17270]: Info: sessiond not accepting connections to local apps socket (in ust_listener_thread() at lttng-ust-comm.c:1221)
libust[17268/17270]: Waiting for local apps sessiond (in wait_for_sessiond() at lttng-ust-comm.c:1132)
libust[17268/17268]: Provider "lttng_ust_tracef" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just registered probe ust_baddr_statedump containing 1 events (in lttng_lazy_probe_register() at lttng-probes.c:115)
libust[17268/17268]: adding probe lttng_ust_tracef containing 1 events to lazy registration list (in lttng_probe_register() at lttng-probes.c:216)
libust[17268/17268]: Provider "ust_tests_demo3" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just registered probe lttng_ust_tracef containing 1 events (in lttng_lazy_probe_register() at lttng-probes.c:115)
libust[17268/17268]: adding probe ust_tests_demo3 containing 1 events to lazy registration list (in lttng_probe_register() at lttng-probes.c:216)
libust[17268/17268]: Provider "ust_tests_demo" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just registered probe ust_tests_demo3 containing 1 events (in lttng_lazy_probe_register() at lttng-probes.c:115)
libust[17268/17268]: adding probe ust_tests_demo containing 2 events to lazy registration list (in lttng_probe_register() at lttng-probes.c:216)
libust[17268/17268]: Provider "ust_tests_demo2" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just registered probe ust_tests_demo containing 2 events (in lttng_lazy_probe_register() at lttng-probes.c:115)
libust[17268/17268]: adding probe ust_tests_demo2 containing 1 events to lazy registration list (in lttng_probe_register() at lttng-probes.c:216)
liblttng_ust_tracepoint[17268/17268]: just registered a tracepoints section from 0x804b144 and having 4 tracepoints (in tracepoint_register_lib() at tracepoint.c:767)
liblttng_ust_tracepoint[17268/17268]: registered tracepoint: ust_tests_demo:starting (in tracepoint_register_lib() at tracepoint.c:772)
liblttng_ust_tracepoint[17268/17268]: registered tracepoint: ust_tests_demo:done (in tracepoint_register_lib() at tracepoint.c:772)
liblttng_ust_tracepoint[17268/17268]: registered tracepoint: ust_tests_demo2:loop (in tracepoint_register_lib() at tracepoint.c:772)
liblttng_ust_tracepoint[17268/17268]: registered tracepoint: ust_tests_demo3:done (in tracepoint_register_lib() at tracepoint.c:772)
Demo program starting.
Tracing... done.
liblttng_ust_tracepoint[17268/17268]: just unregistered a tracepoints section from 0x804b144 (in tracepoint_unregister_lib() at tracepoint.c:797)
libust[17268/17268]: Provider "ust_tests_demo2" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just unregistered probe ust_tests_demo2 (in lttng_probe_unregister() at lttng-probes.c:245)
libust[17268/17268]: Provider "ust_tests_demo" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just unregistered probe ust_tests_demo (in lttng_probe_unregister() at lttng-probes.c:245)
libust[17268/17268]: Provider "ust_tests_demo3" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just unregistered probe ust_tests_demo3 (in lttng_probe_unregister() at lttng-probes.c:245)
libust[17268/17268]: Provider "lttng_ust_tracef" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just unregistered probe lttng_ust_tracef (in lttng_probe_unregister() at lttng-probes.c:245)
libust[17268/17268]: LTT : ltt ring buffer client "relay-discard-rt-mmap" exit
(in lttng_ring_buffer_client_discard_rt_exit() at lttng-ring-buffer-client.h:688)
libust[17268/17268]: LTT : ltt ring buffer client "relay-discard-mmap" exit
(in lttng_ring_buffer_client_discard_exit() at lttng-ring-buffer-client.h:688)
libust[17268/17268]: LTT : ltt ring buffer client "relay-overwrite-rt-mmap" exit
(in lttng_ring_buffer_client_overwrite_rt_exit() at lttng-ring-buffer-client.h:688)
libust[17268/17268]: LTT : ltt ring buffer client "relay-overwrite-mmap" exit
(in lttng_ring_buffer_client_overwrite_exit() at lttng-ring-buffer-client.h:688)
libust[17268/17268]: LTT : ltt ring buffer client "relay-metadata-mmap" exit
(in lttng_ring_buffer_metadata_client_exit() at lttng-ring-buffer-metadata-client.h:337)
libust[17268/17268]: Provider "ust_baddr_statedump" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just unregistered probe ust_baddr_statedump (in lttng_probe_unregister() at lttng-probes.c:245)
liblttng_ust_tracepoint[17268/17268]: just unregistered a tracepoints section from 0xb754f780 (in tracepoint_unregister_lib() at tracepoint.c:797)
row@cobra7:~/lttng_source/lttng-ust/doc/examples/demo$
liblttng_ust_tracepoint[17268/17268]: just registered a tracepoints section from 0xb754f780 and having 2 tracepoints (in tracepoint_register_lib() at tracepoint.c:767)
liblttng_ust_tracepoint[17268/17268]: registered tracepoint: ust_baddr_statedump:soinfo (in tracepoint_register_lib() at tracepoint.c:772)
liblttng_ust_tracepoint[17268/17268]: registered tracepoint: lttng_ust_tracef:event (in tracepoint_register_lib() at tracepoint.c:772)
libust[17268/17268]: Provider "ust_baddr_statedump" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: adding probe ust_baddr_statedump containing 1 events to lazy registration list (in lttng_probe_register() at lttng-probes.c:216)
libust[17268/17268]: LTT : ltt ring buffer client "relay-metadata-mmap" init
(in lttng_ring_buffer_metadata_client_init() at lttng-ring-buffer-metadata-client.h:330)
libust[17268/17268]: LTT : ltt ring buffer client "relay-overwrite-mmap" init
(in lttng_ring_buffer_client_overwrite_init() at lttng-ring-buffer-client.h:681)
libust[17268/17268]: LTT : ltt ring buffer client "relay-overwrite-rt-mmap" init
(in lttng_ring_buffer_client_overwrite_rt_init() at lttng-ring-buffer-client.h:681)
libust[17268/17268]: LTT : ltt ring buffer client "relay-discard-mmap" init
(in lttng_ring_buffer_client_discard_init() at lttng-ring-buffer-client.h:681)
libust[17268/17268]: LTT : ltt ring buffer client "relay-discard-rt-mmap" init
(in lttng_ring_buffer_client_discard_rt_init() at lttng-ring-buffer-client.h:681)
libust[17268/17269]: Info: sessiond not accepting connections to global apps socket (in ust_listener_thread() at lttng-ust-comm.c:1221)
libust[17268/17269]: Waiting for global apps sessiond (in wait_for_sessiond() at lttng-ust-comm.c:1132)
libust[17268/17270]: Info: sessiond not accepting connections to local apps socket (in ust_listener_thread() at lttng-ust-comm.c:1221)
libust[17268/17270]: Waiting for local apps sessiond (in wait_for_sessiond() at lttng-ust-comm.c:1132)
libust[17268/17268]: Provider "lttng_ust_tracef" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just registered probe ust_baddr_statedump containing 1 events (in lttng_lazy_probe_register() at lttng-probes.c:115)
libust[17268/17268]: adding probe lttng_ust_tracef containing 1 events to lazy registration list (in lttng_probe_register() at lttng-probes.c:216)
libust[17268/17268]: Provider "ust_tests_demo3" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just registered probe lttng_ust_tracef containing 1 events (in lttng_lazy_probe_register() at lttng-probes.c:115)
libust[17268/17268]: adding probe ust_tests_demo3 containing 1 events to lazy registration list (in lttng_probe_register() at lttng-probes.c:216)
libust[17268/17268]: Provider "ust_tests_demo" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just registered probe ust_tests_demo3 containing 1 events (in lttng_lazy_probe_register() at lttng-probes.c:115)
libust[17268/17268]: adding probe ust_tests_demo containing 2 events to lazy registration list (in lttng_probe_register() at lttng-probes.c:216)
libust[17268/17268]: Provider "ust_tests_demo2" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just registered probe ust_tests_demo containing 2 events (in lttng_lazy_probe_register() at lttng-probes.c:115)
libust[17268/17268]: adding probe ust_tests_demo2 containing 1 events to lazy registration list (in lttng_probe_register() at lttng-probes.c:216)
liblttng_ust_tracepoint[17268/17268]: just registered a tracepoints section from 0x804b144 and having 4 tracepoints (in tracepoint_register_lib() at tracepoint.c:767)
liblttng_ust_tracepoint[17268/17268]: registered tracepoint: ust_tests_demo:starting (in tracepoint_register_lib() at tracepoint.c:772)
liblttng_ust_tracepoint[17268/17268]: registered tracepoint: ust_tests_demo:done (in tracepoint_register_lib() at tracepoint.c:772)
liblttng_ust_tracepoint[17268/17268]: registered tracepoint: ust_tests_demo2:loop (in tracepoint_register_lib() at tracepoint.c:772)
liblttng_ust_tracepoint[17268/17268]: registered tracepoint: ust_tests_demo3:done (in tracepoint_register_lib() at tracepoint.c:772)
Demo program starting.
Tracing... done.
liblttng_ust_tracepoint[17268/17268]: just unregistered a tracepoints section from 0x804b144 (in tracepoint_unregister_lib() at tracepoint.c:797)
libust[17268/17268]: Provider "ust_tests_demo2" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just unregistered probe ust_tests_demo2 (in lttng_probe_unregister() at lttng-probes.c:245)
libust[17268/17268]: Provider "ust_tests_demo" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just unregistered probe ust_tests_demo (in lttng_probe_unregister() at lttng-probes.c:245)
libust[17268/17268]: Provider "ust_tests_demo3" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just unregistered probe ust_tests_demo3 (in lttng_probe_unregister() at lttng-probes.c:245)
libust[17268/17268]: Provider "lttng_ust_tracef" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just unregistered probe lttng_ust_tracef (in lttng_probe_unregister() at lttng-probes.c:245)
libust[17268/17268]: LTT : ltt ring buffer client "relay-discard-rt-mmap" exit
(in lttng_ring_buffer_client_discard_rt_exit() at lttng-ring-buffer-client.h:688)
libust[17268/17268]: LTT : ltt ring buffer client "relay-discard-mmap" exit
(in lttng_ring_buffer_client_discard_exit() at lttng-ring-buffer-client.h:688)
libust[17268/17268]: LTT : ltt ring buffer client "relay-overwrite-rt-mmap" exit
(in lttng_ring_buffer_client_overwrite_rt_exit() at lttng-ring-buffer-client.h:688)
libust[17268/17268]: LTT : ltt ring buffer client "relay-overwrite-mmap" exit
(in lttng_ring_buffer_client_overwrite_exit() at lttng-ring-buffer-client.h:688)
libust[17268/17268]: LTT : ltt ring buffer client "relay-metadata-mmap" exit
(in lttng_ring_buffer_metadata_client_exit() at lttng-ring-buffer-metadata-client.h:337)
libust[17268/17268]: Provider "ust_baddr_statedump" accepted, version 1.0 is compatible with LTTng UST provider version 1.0. (in check_provider_version() at lttng-probes.c:174)
libust[17268/17268]: just unregistered probe ust_baddr_statedump (in lttng_probe_unregister() at lttng-probes.c:245)
liblttng_ust_tracepoint[17268/17268]: just unregistered a tracepoints section from 0xb754f780 (in tracepoint_unregister_lib() at tracepoint.c:797)
row@cobra7:~/lttng_source/lttng-ust/doc/examples/demo$
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