[lttng-dev] I'm still getting empty ust traces using tracef

Wed Jun 28 18:02:02 EDT 2023

On Wed, Jun 21, 2023 at 6:02 PM Brian Hutchinson <b.hutchman at gmail.com> wrote:
>
> On Wed, Jun 21, 2023 at 4:21 PM Mathieu Desnoyers
> <mathieu.desnoyers at efficios.com> wrote:
> >
> > On 6/20/23 18:02, Brian Hutchinson wrote:
> > > On Thu, May 11, 2023 at 2:14 PM Mathieu Desnoyers
> > > <mathieu.desnoyers at efficios.com> wrote:
> > >>
> > >> On 2023-05-11 14:13, Mathieu Desnoyers via lttng-dev wrote:
> > >>> On 2023-05-11 12:36, Brian Hutchinson via lttng-dev wrote:
> > >>>> ... more background.  I've always used ltt in the kernel so I don't
> > >>>> have much experience with the user side of it and especially
> > >>>> multi-threaded, multi-core so I'm probably missing some fundamental
> > >>>> concepts that I need to understand.
> > >>>
> > >>> Which are the exact versions of LTTng-UST and LTTng-Tools you are using
> > >>> now ? (2.13.N or which git commit ?)
> > >>>
> > >>
> > >> Also, can you try using lttng-ust stable-2.13 branch, which includes the following commit ?
> > >>
> > >> commit be2ca8b563bab81be15cbce7b9f52422369f79f7
> > >> Author: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
> > >> Date:   Tue Feb 21 14:29:49 2023 -0500
> > >>
> > >>       Fix: Reevaluate LTTNG_UST_TRACEPOINT_DEFINE each time tracepoint.h is included
> > >>
> > >>       Fix issues with missing symbols in use-cases where tracef.h is included
> > >>       before defining LTTNG_UST_TRACEPOINT_DEFINE, e.g.:
> > >>
> > >>        #include <lttng/tracef.h>
> > >>        #define LTTNG_UST_TRACEPOINT_DEFINE
> > >>        #include <provider.h>
> > >>
> > >>       It is caused by the fact that tracef.h includes tracepoint.h in a
> > >>       context which has LTTNG_UST_TRACEPOINT_DEFINE undefined, and this is not
> > >>       re-evaluated for the following includes.
> > >>
> > >>       Fix this by lifting the definition code in tracepoint.h outside of the
> > >>       header include guards, and #undef the old LTTNG_UST__DEFINE_TRACEPOINT
> > >>       before re-defining it to its new semantic. Use a new
> > >>       _LTTNG_UST_TRACEPOINT_DEFINE_ONCE include guard within the
> > >>       LTTNG_UST_TRACEPOINT_DEFINE defined case to ensure symbols are not
> > >>       duplicated.
> > >>
> > >>       Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
> > >>       Change-Id: I0ef720435003a7ca0bfcf29d7bf27866c5ff8678
> > >>
> > >
> > > I applied this patch and if I use "tracef" type calls in our
> > > application that is made up of a bunch of static libs ... the UST
> > > trace calls work.  I verified that traces that were called from
> > > several different static libs all worked.
> > >
> > > But as soon as I include a "tracepoint" style tracepoint (that uses
> > > trace provider include files etc.) then doing a "lttng list -u"
> > > returns "None" for UST events.
> > >
> > > Is there some kind of rule that says a file can't use both tracef and
> > > tracepoint calls?  Is there something special you have to do to use
> > > tracef and tracepoints in same file?  Doing so appears to have broken
> > > everything.
> >
> > It should just work.
> >
> > Can you provide a minimal example of the compile unit having this
> > issue ?
> >
> > Also you mention "static libs". Make sure you do *not* define
> > "LTTNG_UST_TRACEPOINT_PROBE_DYNAMIC_LINKAGE" in this case. See the
> > lttng-ust(3) man page for details (section "Statically linking the
> > tracepoint provider").
>
> About that.  It's a big project so all of our components are compiled
> as static libs and linked into one big executable at the end, I'm not
> using lttng-ust static libs.  I'm linking final executable with
> -llttng-ust and -ldl
>
> I also have another question I just thought of regarding trace provider code.
>
> We've got a bunch of C code that is being compiled with g++.  I
> initially had problems getting anything tracepoint related to work
> (with 2.11) and read somewhere that the trace provider code needed to
> be compiled with gcc so I built that by hand since our cmake build
> system is pretty complicated and just copied the resulting C .obj into
> our build directory structure for cmake to pick up and that worked.  I
> basically copied the gcc .obj over the broken one that cmake/g++
> generated.
>
> I'm not doing that now and am wrapping the -tp.h TRACEPOINT_EVENT
> definitions with #ifdef __cplusplus extern "C" {} #endif /*
> __cplusplus */
>
> I'll have to go back and check my results as I've been on/off working
> on this for a while but if I stub out tracepoint calls and just do
> tracef it appears everything works.  If I stub out tracef calls and
> just do tracepoint calls I think that works too.  The problem I have
> is when I try to do both tracef and tracepoint in same file.  That's
> when nothing works.
>
> Is there an order to the includes?
>
> In the C source file in question I do:
>
> #include <lttng/tracef.h>
> then later ...
> #define TRACEPOINT_DEFINE
> #include "my-tp.h"
>
> Hmm, now that I pay more attention, I don't see any mention of
> traceprovider code needing to be compiled with gcc vs g++ in the 2.13
> documentation.
>
> ... and it looks like the traceprovider header changed to use
> LTTNG_UST_ in front of everything and I'm still using lttng 2.11
> style!  So I think my problem is probably associated with needing to
> re-do my traceprovider code to update to 2.13 style.  Don't know if
> the C++ thing is still an issue./
>

I updated my trace provider package I created for lttng 2.11 to 2.13
syntax.  I discovered why lttng list -u wasn't returning anything.
It's because the application had a seg fault.  Here is the debug trace
of that:

root at localhost:# lttng create my_session --output=/tmp/my_trace --snapshot
Spawning a session daemon
libringbuffer-clients[41538/41538]: LTT : ltt ring buffer client
"relay-metadata-mmap" init
(in lttng_ring_buffer_metadata_client_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/metadata-template.h:364)
libringbuffer-clients[41538/41538]: LTT : ltt ring buffer client
"relay-overwrite-mmap" init
(in lttng_ring_buffer_client_overwrite_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:826)
libringbuffer-clients[41538/41538]: LTT : ltt ring buffer client
"relay-overwrite-rt-mmap" init
(in lttng_ring_buffer_client_overwrite_rt_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:826)
libringbuffer-clients[41538/41538]: LTT : ltt ring buffer client
"relay-discard-mmap" init
(in lttng_ring_buffer_client_discard_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:826)
libringbuffer-clients[41538/41538]: LTT : ltt ring buffer client
"relay-discard-rt-mmap" init
(in lttng_ring_buffer_client_discard_rt_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:826)
[ 2867.702128] LTTng: Loaded modules v2.13.9 (Nordicit�é)
[ 2867.711872] LTTng: Experimental bitwise enum enabled.
libringbuffer-clients[41538/41538]: LTT : ltt ring buffer client
"relay-discard-rt-mmap" exit
(in lttng_ring_buffer_client_discard_rt_exit() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:833)
libringbuffer-clients[41538/41538]: LTT : ltt ring buffer client
"relay-discard-mmap" exit
(in lttng_ring_buffer_client_discard_exit() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:833)
libringbuffer-clients[41538/41538]: LTT : ltt ring buffer client
"relay-overwrite-rt-mmap" exit
(in lttng_ring_buffer_client_overwrite_rt_exit() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:833)
libringbuffer-clients[41538/41538]: LTT : ltt ring buffer client
"relay-overwrite-mmap" exit
(in lttng_ring_buffer_client_overwrite_exit() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:833)
libringbuffer-clients[41538/41538]: LTT : ltt ring buffer client
"relay-metadata-mmap" exit
(in lttng_ring_buffer_metadata_client_exit() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/metadata-template.h:371)
Snapshot session my_session created.
Default snapshot output set to /tmp/my_trace
Every channel enabled for this session will be set to mmap output and
default to overwrite mode.

root at localhost:# ./my_app
liblttng_ust[42358/42358]: dlopened liblttng-ust shared library
(liblttng-ust.so.1). (in lttng_ust_ctor() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:2217)
liblttng_ust_tracepoint[42358/42358]: Your compiler treats weak
symbols with hidden visibility for integer objects as SAME address
between compile units part of the same module. (in check_weak_hidden()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:10)
liblttng_ust_tracepoint[42358/42358]: Your compiler treats weak
symbols with hidden visibility for pointer objects as SAME address
between compile units part of the same module. (in check_weak_hidden()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:10)
liblttng_ust_tracepoint[42358/42358]: Your compiler treats weak
symbols with hidden visibility for 24-byte structure objects as SAME
address between compile units part of the same module. (in
check_weak_hidden() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/trace)
liblttng_ust_tracepoint[42358/42358]: just registered a tracepoints
section from 0xffff90b64630 and having 26 tracepoints (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:960)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_statedump:end" (in lttng_ust_tracepoint_module_register()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_statedump:procname" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_statedump:debug_link" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_statedump:build_id" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_statedump:bin_info" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_statedump:start" (in lttng_ust_tracepoint_module_register()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_lib:unload" (in lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_lib:debug_link" (in lttng_ust_tracepoint_module_register()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_lib:build_id" (in lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_lib:load" (in lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracef:event" (in lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_LINE" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_FUNCTION" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_UNIT" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_MODULE" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_PROCESS" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_PROGRAM" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_SYSTEM" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_INFO" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_NOTICE" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_WARNING" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_ERR" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_CRIT" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_ALERT" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[42358/42358]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_EMERG" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust[42358/42358]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: adding probe lttng_ust_statedump containing
6 events to lazy registration list (in lttng_ust_probe_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:254)
libringbuffer-clients[42358/42358]: LTT : ltt ring buffer client
"relay-metadata-mmap" init
(in lttng_ring_buffer_metadata_client_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/metadata-template.h:364)
libringbuffer-clients[42358/42358]: LTT : ltt ring buffer client
"relay-overwrite-mmap" init
(in lttng_ring_buffer_client_overwrite_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:826)
libringbuffer-clients[42358/42358]: LTT : ltt ring buffer client
"relay-overwrite-rt-mmap" init
(in lttng_ring_buffer_client_overwrite_rt_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:826)
libringbuffer-clients[42358/42358]: LTT : ltt ring buffer client
"relay-discard-mmap" init
(in lttng_ring_buffer_client_discard_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:826)
libringbuffer-clients[42358/42358]: LTT : ltt ring buffer client
"relay-discard-rt-mmap" init
(in lttng_ring_buffer_client_discard_rt_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:826)
liblttng_ust[42358/42360]: Info: sessiond not accepting connections to
local apps socket (in ust_listener_thread() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1884)
liblttng_ust[42358/42360]: Waiting for local apps sessiond (in
wait_for_sessiond() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1758)
liblttng_ust[42358/42359]: Message Received "Get Tracer Version" (65),
Handle "root" (0) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[42358/42359]: Return value: 0 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42359]: Message Received "Create event notifier
group" (70), Handle "root" (0) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42359]: Return value: 1 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42359]: Message Received "Create Counter" (192),
Handle "event_notifier_" (1) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42359]: counter data received (in handle_message()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1266)
liblttng_ust[42358/42359]: Return value: 2 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42359]: Message Received "Create Counter CPU"
(209), Handle "event_notifier " (2) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42359]: Return value: 0 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42359]: Message Received "Create Counter CPU"
(209), Handle "event_notifier " (2) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42359]: Return value: 0 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42359]: Message Received "Create Counter CPU"
(209), Handle "event_notifier " (2) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42359]: Return value: 0 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42359]: Message Received "Create Counter CPU"
(209), Handle "event_notifier " (2) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42359]: Return value: 0 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42359]: Message Received "Registration Done" (68),
Handle "root" (0) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[42358/42358]: Provider "lttng_ust_lib" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_lib" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_lib" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_lib" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_lib" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42359]: Return value: 0 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[42358/42358]: adding probe lttng_ust_lib containing 4
events to lazy registration list (in lttng_ust_probe_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:254)
liblttng_ust_tracepoint[42358/42358]: Release queue of unregistered
tracepoint probes. (in lttng_ust_tp_probe_prune_release_queue() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:787)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracef" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracef" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: adding probe lttng_ust_tracef containing 1
events to lazy registration list (in lttng_ust_probe_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:254)
liblttng_ust_tracepoint[42358/42358]: Release queue of unregistered
tracepoint probes. (in lttng_ust_tp_probe_prune_release_queue() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:787)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42358]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[42358/42359]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[42358/42358]: adding probe lttng_ust_tracelog containing
15 events to lazy registration list (in lttng_ust_probe_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:254)
liblttng_ust_tracepoint[42358/42358]: Release queue of unregistered
tracepoint probes. (in lttng_ust_tp_probe_prune_release_queue() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:787)
Segmentation fault

Not sure exactly what is going on.  I did the hello world example
stand alone and it worked.  Thinking I messed up something in my trace
provider package I simply used the hello world one that worked and put
the tracepoint "lttng_ust_tracepoint(hello_world, my_first_tracepoint,
23,"hi there!");" in my app and it segfaults.

This is using lttng-tools 2.13.9 with patches (from OE recipe):
          file://0001-tests-do-not-strip-a-helper-library.patch \
          file://run-ptest \
          file://lttng-sessiond.service \
          file://disable-tests.patch \
          file://0001-compat-Define-off64_t-as-off_t-on-linux.patch

lttng-ust 2.13.5 with patches:
          file://0001-python-lttngust-Makefile.am-Add-install-lib-to-setup.patch
\
          file://0001-lttng-ust-common-link-with-liburcu-explicitly.patch \
          file://0001-Makefile.am-update-rpath-link.patch

And I manually added patch:

Fix: Reevaluate LTTNG_UST_TRACEPOINT_DEFINE each time tracepoint.h is included

lttng-modules 2.13.9 with patches:
          file://0009-Rename-genhd-wrapper-to-blkdev.patch \
          file://0001-fix-mm-introduce-vma-vm_flags-wrapper-functions-v6.3.patch
\
          file://0002-fix-uuid-Decouple-guid_t-and-uuid_le-types-and-respe.patch
\
          file://0003-fix-btrfs-pass-find_free_extent_ctl-to-allocator-tra.patch
\
          file://0004-fix-net-add-location-to-trace_consume_skb-v6.3.patch

Here is log of hello running right afterwards ... it does not seg fault:

root at localhost:/home/root# ./hello
liblttng_ust[61133/61133]: dlopened liblttng-ust shared library
(liblttng-ust.so.1). (in lttng_ust_ctor() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:2217)
liblttng_ust_tracepoint[61133/61133]: Your compiler treats weak
symbols with hidden visibility for integer objects as SAME address
between compile units part of the same module. (in check_weak_hidden()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:10)
liblttng_ust_tracepoint[61133/61133]: Your compiler treats weak
symbols with hidden visibility for pointer objects as SAME address
between compile units part of the same module. (in check_weak_hidden()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:10)
liblttng_ust_tracepoint[61133/61133]: Your compiler treats weak
symbols with hidden visibility for 24-byte structure objects as SAME
address between compile units part of the same module. (in
check_weak_hidden() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/trace)
liblttng_ust_tracepoint[61133/61133]: just registered a tracepoints
section from 0xffffa61d9630 and having 26 tracepoints (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:960)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_statedump:end" (in lttng_ust_tracepoint_module_register()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_statedump:procname" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_statedump:debug_link" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_statedump:build_id" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_statedump:bin_info" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_statedump:start" (in lttng_ust_tracepoint_module_register()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_lib:unload" (in lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_lib:debug_link" (in lttng_ust_tracepoint_module_register()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_lib:build_id" (in lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_lib:load" (in lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracef:event" (in lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_LINE" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_FUNCTION" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_UNIT" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_MODULE" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_PROCESS" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_PROGRAM" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_SYSTEM" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_INFO" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_NOTICE" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_WARNING" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_ERR" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_CRIT" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_ALERT" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"lttng_ust_tracelog:LTTNG_UST_TRACEPOINT_LOGLEVEL_EMERG" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust[61133/61133]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: adding probe lttng_ust_statedump containing
6 events to lazy registration list (in lttng_ust_probe_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:254)
libringbuffer-clients[61133/61133]: LTT : ltt ring buffer client
"relay-metadata-mmap" init
(in lttng_ring_buffer_metadata_client_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/metadata-template.h:364)
libringbuffer-clients[61133/61133]: LTT : ltt ring buffer client
"relay-overwrite-mmap" init
(in lttng_ring_buffer_client_overwrite_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:826)
libringbuffer-clients[61133/61133]: LTT : ltt ring buffer client
"relay-overwrite-rt-mmap" init
(in lttng_ring_buffer_client_overwrite_rt_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:826)
libringbuffer-clients[61133/61133]: LTT : ltt ring buffer client
"relay-discard-mmap" init
(in lttng_ring_buffer_client_discard_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:826)
libringbuffer-clients[61133/61133]: LTT : ltt ring buffer client
"relay-discard-rt-mmap" init
(in lttng_ring_buffer_client_discard_rt_init() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:826)
liblttng_ust[61133/61140]: Info: sessiond not accepting connections to
local apps socket (in ust_listener_thread() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1884)
liblttng_ust[61133/61140]: Waiting for local apps sessiond (in
wait_for_sessiond() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1758)
liblttng_ust[61133/61139]: Message Received "Get Tracer Version" (65),
Handle "root" (0) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[61133/61139]: Return value: 0 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61139]: Message Received "Create event notifier
group" (70), Handle "root" (0) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61139]: Return value: 1 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61139]: Message Received "Create Counter" (192),
Handle "event_notifier_" (1) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61139]: counter data received (in handle_message()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1266)
liblttng_ust[61133/61139]: Return value: 2 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61139]: Message Received "Create Counter CPU"
(209), Handle "event_notifier " (2) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61139]: Return value: 0 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61139]: Message Received "Create Counter CPU"
(209), Handle "event_notifier " (2) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61139]: Return value: 0 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61139]: Message Received "Create Counter CPU"
(209), Handle "event_notifier " (2) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61139]: Return value: 0 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61139]: Message Received "Create Counter CPU"
(209), Handle "event_notifier " (2) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61139]: Return value: 0 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61139]: Message Received "Registration Done" (68),
Handle "root" (0) (in print_cmd() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:476)
liblttng_ust[61133/61133]: Provider "lttng_ust_lib" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_lib" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_lib" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_lib" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_lib" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61139]: Return value: 0 (in handle_message() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:1412)
liblttng_ust[61133/61133]: adding probe lttng_ust_lib containing 4
events to lazy registration list (in lttng_ust_probe_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:254)
liblttng_ust_tracepoint[61133/61133]: Release queue of unregistered
tracepoint probes. (in lttng_ust_tp_probe_prune_release_queue() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:787)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracef" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracef" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: adding probe lttng_ust_tracef containing 1
events to lazy registration list (in lttng_ust_probe_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:254)
liblttng_ust_tracepoint[61133/61133]: Release queue of unregistered
tracepoint probes. (in lttng_ust_tp_probe_prune_release_queue() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:787)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61139]: message successfully sent (in send_reply()
at ../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-ust-comm.c:656)
liblttng_ust[61133/61133]: adding probe lttng_ust_tracelog containing
15 events to lazy registration list (in lttng_ust_probe_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:254)
liblttng_ust_tracepoint[61133/61133]: Release queue of unregistered
tracepoint probes. (in lttng_ust_tp_probe_prune_release_queue() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:787)
liblttng_ust_tracepoint[61133/61133]: just registered a tracepoints
section from 0xaaaaae9c41b8 and having 1 tracepoints (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:960)
liblttng_ust_tracepoint[61133/61133]: registered tracepoint:
"hello_world:my_first_tracepoint" (in
lttng_ust_tracepoint_module_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:968)
liblttng_ust[61133/61133]: Provider "hello_world" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: Provider "hello_world" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust[61133/61133]: adding probe hello_world containing 1
events to lazy registration list (in lttng_ust_probe_register() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:254)
liblttng_ust_tracepoint[61133/61133]: Release queue of unregistered
tracepoint probes. (in lttng_ust_tp_probe_prune_release_queue() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:787)
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liblttng_ust[61133/61133]: Provider "hello_world" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust_tracepoint[61133/61133]: Release queue of unregistered
tracepoint probes. (in lttng_ust_tp_probe_prune_release_queue() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:787)
liblttng_ust[61133/61133]: just unregistered probes of provider
hello_world (in lttng_ust_probe_unregister() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:286)
liblttng_ust_tracepoint[61133/61133]: just unregistered a tracepoints
section from 0xaaaaae9c41b8 (in
lttng_ust_tracepoint_module_unregister() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:995)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracelog" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust_tracepoint[61133/61133]: Release queue of unregistered
tracepoint probes. (in lttng_ust_tp_probe_prune_release_queue() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:787)
liblttng_ust[61133/61133]: just unregistered probes of provider
lttng_ust_tracelog (in lttng_ust_probe_unregister() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:286)
liblttng_ust[61133/61133]: Provider "lttng_ust_tracef" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust_tracepoint[61133/61133]: Release queue of unregistered
tracepoint probes. (in lttng_ust_tp_probe_prune_release_queue() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:787)
liblttng_ust[61133/61133]: just unregistered probes of provider
lttng_ust_tracef (in lttng_ust_probe_unregister() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:286)
liblttng_ust[61133/61133]: Provider "lttng_ust_lib" accepted, version
3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust_tracepoint[61133/61133]: Release queue of unregistered
tracepoint probes. (in lttng_ust_tp_probe_prune_release_queue() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:787)
liblttng_ust[61133/61133]: just unregistered probes of provider
lttng_ust_lib (in lttng_ust_probe_unregister() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:286)
libringbuffer-clients[61133/61133]: LTT : ltt ring buffer client
"relay-discard-rt-mmap" exit
(in lttng_ring_buffer_client_discard_rt_exit() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:833)
libringbuffer-clients[61133/61133]: LTT : ltt ring buffer client
"relay-discard-mmap" exit
(in lttng_ring_buffer_client_discard_exit() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:833)
libringbuffer-clients[61133/61133]: LTT : ltt ring buffer client
"relay-overwrite-rt-mmap" exit
(in lttng_ring_buffer_client_overwrite_rt_exit() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:833)
libringbuffer-clients[61133/61133]: LTT : ltt ring buffer client
"relay-overwrite-mmap" exit
(in lttng_ring_buffer_client_overwrite_exit() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/template.h:833)
libringbuffer-clients[61133/61133]: LTT : ltt ring buffer client
"relay-metadata-mmap" exit
(in lttng_ring_buffer_metadata_client_exit() at
../../../lttng-ust-2.13.5/src/common/ringbuffer-clients/metadata-template.h:371)
liblttng_ust[61133/61133]: Provider "lttng_ust_statedump" accepted,
version 3.0 is compatible with LTTng UST provider version 3.0. (in
check_provider_version() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:50)
liblttng_ust_tracepoint[61133/61133]: Release queue of unregistered
tracepoint probes. (in lttng_ust_tp_probe_prune_release_queue() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:787)
liblttng_ust[61133/61133]: just unregistered probes of provider
lttng_ust_statedump (in lttng_ust_probe_unregister() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust/lttng-probes.c:286)
liblttng_ust_tracepoint[61133/61133]: just unregistered a tracepoints
section from 0xffffa61d9630 (in
lttng_ust_tracepoint_module_unregister() at
../../../../lttng-ust-2.13.5/src/lib/lttng-ust-tracepoint/tracepoint.c:995)

Regards,

Brian