lttng-tools.git
11 years agoFix: don't send error to sessiond on orderly shutdown
David Goulet [Thu, 4 Jul 2013 20:31:27 +0000 (16:31 -0400)] 
Fix: don't send error to sessiond on orderly shutdown

The send always fail if the sessiond has closed the socket so no point
of trying to send an error.

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: consumer: incorrect size zmalloc
Mathieu Desnoyers [Thu, 4 Jul 2013 21:53:50 +0000 (17:53 -0400)] 
Fix: consumer: incorrect size zmalloc

Also, check return value.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoFix: RCU read side lock unbalanced
David Goulet [Fri, 12 Jul 2013 14:23:28 +0000 (10:23 -0400)] 
Fix: RCU read side lock unbalanced

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix deadlock: don't take channel lock in timer
Mathieu Desnoyers [Tue, 16 Jul 2013 13:53:33 +0000 (09:53 -0400)] 
Fix deadlock: don't take channel lock in timer

Reviewed-by: Julien Desfossez <julien.desfossez@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoIntroduce channel timer lock
Mathieu Desnoyers [Tue, 16 Jul 2013 13:36:59 +0000 (09:36 -0400)] 
Introduce channel timer lock

Currently a shadow of the channel lock. Will eventually be used to
protect channel timer handler from concurrent channel updates without
being held when the timer is stopped (future commit).

Reviewed-by: Julien Desfossez <julien.desfossez@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Conflicts:
src/common/consumer-stream.c

11 years agodocument lttng_ustconsumer_request_metadata locking constraints
Mathieu Desnoyers [Tue, 16 Jul 2013 01:47:21 +0000 (21:47 -0400)] 
document lttng_ustconsumer_request_metadata locking constraints

Reviewed-by: Julien Desfossez <julien.desfossez@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agodocument metadata_switch_timer() deadlock
Mathieu Desnoyers [Tue, 16 Jul 2013 01:15:05 +0000 (21:15 -0400)] 
document metadata_switch_timer() deadlock

Reviewed-by: Julien Desfossez <julien.desfossez@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agodocument metadata_switch_timer() locking constraints
Mathieu Desnoyers [Tue, 16 Jul 2013 00:56:51 +0000 (20:56 -0400)] 
document metadata_switch_timer() locking constraints

Reviewed-by: Julien Desfossez <julien.desfossez@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoconsumer: replace DBG2() instances by DBG()
Mathieu Desnoyers [Tue, 16 Jul 2013 00:18:13 +0000 (20:18 -0400)] 
consumer: replace DBG2() instances by DBG()

The consumer daemon does not currently support DBG2() printout.

Reviewed-by: Julien Desfossez <julien.desfossez@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoust consumer: data_pending check is endpoint active
Mathieu Desnoyers [Tue, 16 Jul 2013 00:14:07 +0000 (20:14 -0400)] 
ust consumer: data_pending check is endpoint active

Reviewed-by: Julien Desfossez <julien.desfossez@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoFix: kernel consumer: data_pending check if endpoint active
Mathieu Desnoyers [Tue, 16 Jul 2013 00:12:30 +0000 (20:12 -0400)] 
Fix: kernel consumer: data_pending check if endpoint active

Reviewed-by: Julien Desfossez <julien.desfossez@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoconsumer: explicitly set endpoint status to active at init
Mathieu Desnoyers [Tue, 16 Jul 2013 00:07:36 +0000 (20:07 -0400)] 
consumer: explicitly set endpoint status to active at init

Ensures we explicitly set active at init for channels that don't
interact with a relayd.

Reviewed-by: Julien Desfossez <julien.desfossez@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agodocument consumer_metadata_cache_flushed use of consumer_data.lock
Mathieu Desnoyers [Tue, 16 Jul 2013 00:03:15 +0000 (20:03 -0400)] 
document consumer_metadata_cache_flushed use of consumer_data.lock

Reviewed-by: Julien Desfossez <julien.desfossez@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoconsumer: introduce channel lock
Mathieu Desnoyers [Mon, 15 Jul 2013 23:45:24 +0000 (19:45 -0400)] 
consumer: introduce channel lock

Reviewed-by: Julien Desfossez <julien.desfossez@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoMissing NULL pointer init in tap.c
Mathieu Desnoyers [Fri, 12 Jul 2013 15:41:08 +0000 (11:41 -0400)] 
Missing NULL pointer init in tap.c

Could lead to free() of unitialized pointer.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: Unchecked asprintf/vasprintf return values
Jérémie Galarneau [Fri, 12 Jul 2013 16:38:56 +0000 (12:38 -0400)] 
Fix: Unchecked asprintf/vasprintf return values

strp may be modified even in case of failure according to the
ASPRINTF(3) man page.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoUpdate version to v2.2.1 v2.2.1
David Goulet [Thu, 11 Jul 2013 21:41:08 +0000 (17:41 -0400)] 
Update version to v2.2.1

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: consumer err_sock cloexec
Mathieu Desnoyers [Wed, 10 Jul 2013 19:39:54 +0000 (15:39 -0400)] 
Fix: consumer err_sock cloexec

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: possible consumer sockets double close on cleanup
David Goulet [Tue, 9 Jul 2013 16:28:41 +0000 (12:28 -0400)] 
Fix: possible consumer sockets double close on cleanup

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: add gpl and lgpl files to tarball
David Goulet [Mon, 8 Jul 2013 15:25:52 +0000 (11:25 -0400)] 
Fix: add gpl and lgpl files to tarball

Fixes #581

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: don't install libtap system wide
David Goulet [Mon, 8 Jul 2013 15:23:44 +0000 (11:23 -0400)] 
Fix: don't install libtap system wide

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: close consumer sockets in sessiond cleanup
David Goulet [Fri, 5 Jul 2013 20:03:50 +0000 (16:03 -0400)] 
Fix: close consumer sockets in sessiond cleanup

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: print errno message on connect() error
David Goulet [Fri, 5 Jul 2013 16:01:10 +0000 (12:01 -0400)] 
Fix: print errno message on connect() error

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: possible double-close on stream out_fd
Mathieu Desnoyers [Thu, 4 Jul 2013 22:37:35 +0000 (18:37 -0400)] 
Fix: possible double-close on stream out_fd

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: session ID signess to uin64_t in sessiond
David Goulet [Thu, 4 Jul 2013 19:54:38 +0000 (15:54 -0400)] 
Fix: session ID signess to uin64_t in sessiond

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: consumer_add_relayd_socket() report errors to sessiond
Mathieu Desnoyers [Tue, 2 Jul 2013 19:14:02 +0000 (15:14 -0400)] 
Fix: consumer_add_relayd_socket() report errors to sessiond

Wait until the side-effect to relayd is actually performed before
replying that "all is fine" to sessiond.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoFix: UST per-UID channels persist across application teardown
Mathieu Desnoyers [Tue, 2 Jul 2013 20:20:33 +0000 (16:20 -0400)] 
Fix: UST per-UID channels persist across application teardown

Fixes #582

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoFix: add missing enum lttcomm_return_code entries
Mathieu Desnoyers [Tue, 2 Jul 2013 19:12:42 +0000 (15:12 -0400)] 
Fix: add missing enum lttcomm_return_code entries

Those should not appear as unknown.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoFix: detect the correct version of LTTng-UST
David Goulet [Fri, 28 Jun 2013 18:35:09 +0000 (14:35 -0400)] 
Fix: detect the correct version of LTTng-UST

Fixes #580

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: sessiond: use uint64_t for all session ids
Mathieu Desnoyers [Fri, 28 Jun 2013 16:19:51 +0000 (12:19 -0400)] 
Fix: sessiond: use uint64_t for all session ids

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: consumer: use uint64_t for all sessiond_id
Mathieu Desnoyers [Fri, 28 Jun 2013 16:18:35 +0000 (12:18 -0400)] 
Fix: consumer: use uint64_t for all sessiond_id

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoFix: periodical flush check trace before stop
David Goulet [Fri, 28 Jun 2013 16:07:17 +0000 (12:07 -0400)] 
Fix: periodical flush check trace before stop

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: consumer: 64-bit index for relayd rather than 32-bit (v2)
Mathieu Desnoyers [Fri, 28 Jun 2013 15:26:04 +0000 (11:26 -0400)] 
Fix: consumer: 64-bit index for relayd rather than 32-bit (v2)

Relayd "unique" ids wrap every 32-bit, and in some cases, negative
values are considered as error.

Change this to make the error value specifically -1ULL, use a direct
comparison (since we use an unsigned 64-bit integer, comparison with 0
becomes incorrect).

Since we now use a 64-bit ID, it is assumed to _never_ wrap-around
(remember, value -1ULL is an _error_). Therefore,
consumer_add_relayd_socket() can become much more strict than it was:
instead of accepting re-use of net_seq_idx, we can now assert that upon
LTTNG_STREAM_CONTROL socket, we have indeed allocated a relayd object,
and upon LTTNG_STREAM_DATA, we have found a relayd object.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: send per-pid session id in channel creation
Julien Desfossez [Thu, 27 Jun 2013 21:57:06 +0000 (17:57 -0400)] 
Fix: send per-pid session id in channel creation

The registry indexing for per-pid sessions is done with a per-pid
session id. So for per-pid buffers, we need to send the per-pid session
id as well as the global session id to the consumer in order to give it
enough information if it needs to request metadata later.

This patch adds the session_id_per_pid to the channel creation message
and to the consumer. When the sessiond receives a metadata_request,
depending on the buffer type (per-pid or per-uid), it selects the right
id to do the registry lookup.

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: consumer double-close on error
Mathieu Desnoyers [Thu, 27 Jun 2013 21:32:37 +0000 (17:32 -0400)] 
Fix: consumer double-close on error

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoUpdate URCU detection to correctly check for a 0.7 version
Yannick Brosseau [Thu, 27 Jun 2013 21:03:29 +0000 (17:03 -0400)] 
Update URCU detection to correctly check for a 0.7 version

Signed-off-by: Yannick Brosseau <yannick.brosseau@gmail.com>
11 years agoFix: set hidden attribute to utils_* calls
David Goulet [Fri, 28 Jun 2013 14:30:18 +0000 (10:30 -0400)] 
Fix: set hidden attribute to utils_* calls

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoUpdate version to v2.2.0 v2.2.0
David Goulet [Tue, 25 Jun 2013 20:40:13 +0000 (16:40 -0400)] 
Update version to v2.2.0

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: build path for unit test to build out of tree
David Goulet [Tue, 25 Jun 2013 21:25:04 +0000 (17:25 -0400)] 
Fix: build path for unit test to build out of tree

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: if relayd is unreachable, disable consumer for the session
David Goulet [Tue, 25 Jun 2013 20:25:06 +0000 (16:25 -0400)] 
Fix: if relayd is unreachable, disable consumer for the session

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: possible infinite loop in disable ust event
David Goulet [Tue, 25 Jun 2013 19:24:35 +0000 (15:24 -0400)] 
Fix: possible infinite loop in disable ust event

Fixes #575

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: don't enable a channel if a session was already started
David Goulet [Tue, 25 Jun 2013 18:15:41 +0000 (14:15 -0400)] 
Fix: don't enable a channel if a session was already started

This removes also the check done to start the session if it was started
before.

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: bad type for the relayd id
David Goulet [Tue, 25 Jun 2013 17:39:46 +0000 (13:39 -0400)] 
Fix: bad type for the relayd id

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: add debug statement in kernel flush metadata
David Goulet [Tue, 25 Jun 2013 17:37:59 +0000 (13:37 -0400)] 
Fix: add debug statement in kernel flush metadata

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: destroy default created channel if add-context fails
David Goulet [Tue, 25 Jun 2013 16:30:59 +0000 (12:30 -0400)] 
Fix: destroy default created channel if add-context fails

Fixes #554

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: clarify tracefile size/count in lttng.1 man
David Goulet [Tue, 25 Jun 2013 16:05:11 +0000 (12:05 -0400)] 
Fix: clarify tracefile size/count in lttng.1 man

Fixes #572

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: don't stop a session that was not previously started
David Goulet [Tue, 25 Jun 2013 16:03:20 +0000 (12:03 -0400)] 
Fix: don't stop a session that was not previously started

Fixes #567

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: update lttng.1 man page
David Goulet [Tue, 25 Jun 2013 15:34:36 +0000 (11:34 -0400)] 
Fix: update lttng.1 man page

Fixes #571

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: bad protocol flow between sessiond and consumerd
David Goulet [Tue, 4 Jun 2013 21:46:33 +0000 (17:46 -0400)] 
Fix: bad protocol flow between sessiond and consumerd

Also, the error handling was wrong for some error path.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: kernel memory leak in error path
David Goulet [Tue, 25 Jun 2013 14:55:21 +0000 (10:55 -0400)] 
Fix: kernel memory leak in error path

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoUpdate version to v2.2.0-rc3 v2.2.0-rc3
David Goulet [Thu, 20 Jun 2013 18:35:31 +0000 (14:35 -0400)] 
Update version to v2.2.0-rc3

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: --disable-static option
David Goulet [Thu, 20 Jun 2013 17:39:41 +0000 (13:39 -0400)] 
Fix: --disable-static option

Fixes #562

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: add missing file for make dist
David Goulet [Thu, 20 Jun 2013 17:30:39 +0000 (13:30 -0400)] 
Fix: add missing file for make dist

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: channel and stream leak in consumerd
David Goulet [Tue, 18 Jun 2013 20:07:02 +0000 (16:07 -0400)] 
Fix: channel and stream leak in consumerd

Multiple error paths were possibly leaking channel and stream structure
in the lttng-consumerd.

This has been detected by the stress test killing the relayd randomly
during a long period of time.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: consumer add channel return value was positive on error
David Goulet [Wed, 19 Jun 2013 20:21:41 +0000 (16:21 -0400)] 
Fix: consumer add channel return value was positive on error

Reported-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: wrong check after malloc in buffer registry
David Goulet [Wed, 19 Jun 2013 20:17:10 +0000 (16:17 -0400)] 
Fix: wrong check after malloc in buffer registry

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: change an ERR message to a DBG
David Goulet [Wed, 19 Jun 2013 19:44:51 +0000 (15:44 -0400)] 
Fix: change an ERR message to a DBG

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoTests: Fix wrong number of tests in thread stall as root test
Christian Babeux [Wed, 19 Jun 2013 19:22:05 +0000 (15:22 -0400)] 
Tests: Fix wrong number of tests in thread stall as root test

Signed-off-by: Christian Babeux <christian.babeux@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: set +x to test helper script
David Goulet [Wed, 19 Jun 2013 19:18:53 +0000 (15:18 -0400)] 
Fix: set +x to test helper script

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoTest: add new stress test that kills the relayd randomly
David Goulet [Wed, 19 Jun 2013 18:45:24 +0000 (14:45 -0400)] 
Test: add new stress test that kills the relayd randomly

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoUsing LTTNG_HOME environment variable if exists, with fallback to HOME
Amit Margalit [Thu, 13 Jun 2013 09:35:13 +0000 (12:35 +0300)] 
Using LTTNG_HOME environment variable if exists, with fallback to HOME

11 years agoFix: remove use of stat()
Mathieu Desnoyers [Tue, 18 Jun 2013 20:00:37 +0000 (16:00 -0400)] 
Fix: remove use of stat()

1019896 Time of check time of use
In utils_mkdir_recursive: A check occurs on a file's attributes before
the file is used in a privileged operation, but things may have changed
(CWE-367)

mkdir() is already doing the EEXIST check.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoFix: out of bound strcpy
Mathieu Desnoyers [Tue, 18 Jun 2013 19:51:37 +0000 (15:51 -0400)] 
Fix: out of bound strcpy

1019904 Copy into fixed size buffer
In add_context: A source buffer of statically unknown size is copied
into a fixed-size destination buffer (CWE-120)

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoRemove logically dead code
Mathieu Desnoyers [Tue, 18 Jun 2013 19:38:57 +0000 (15:38 -0400)] 
Remove logically dead code

1019963 Logically dead code
In list_sessions: Code can never be reached because of a logical
contradiction (CWE-561)

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoFix: handle close return value
Mathieu Desnoyers [Tue, 18 Jun 2013 19:34:31 +0000 (15:34 -0400)] 
Fix: handle close return value

1019968 Unchecked return value
In lttng_health_check: Value returned from a function is not checked for
errors before being used (CWE-252)

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoRemove useless if() check
Mathieu Desnoyers [Tue, 18 Jun 2013 19:33:05 +0000 (15:33 -0400)] 
Remove useless if() check

1022350 Dereference before null check
In ust_registry_session_destroy: All paths that lead to this null
pointer comparison already dereference the pointer earlier (CWE-476)

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoFix: goto error_fatal on lttng_kconsumer_recv_cmd errors
Mathieu Desnoyers [Tue, 18 Jun 2013 19:30:41 +0000 (15:30 -0400)] 
Fix: goto error_fatal on lttng_kconsumer_recv_cmd errors

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoFix: goto error_fatal on lttng_ustconsumer_recv_cmd errors
Mathieu Desnoyers [Tue, 18 Jun 2013 19:30:06 +0000 (15:30 -0400)] 
Fix: goto error_fatal on lttng_ustconsumer_recv_cmd errors

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoFix: unnecessarily large memory allocation
Mathieu Desnoyers [Tue, 18 Jun 2013 18:58:46 +0000 (14:58 -0400)] 
Fix: unnecessarily large memory allocation

1019911 Wrong sizeof argument
In consumer_thread_data_poll: The sizeof operator is invoked on the
wrong argument (CWE-569)

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoFix: comparing array against NULL
Mathieu Desnoyers [Tue, 18 Jun 2013 18:51:15 +0000 (14:51 -0400)] 
Fix: comparing array against NULL

1019939 Array compared against 0
In process_client_msg: Array compared against NULL pointer (CWE-398)

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 years agoFix: Remove reference to lttng-probe-lttng kernel module
Jérémie Galarneau [Wed, 5 Jun 2013 19:39:15 +0000 (15:39 -0400)] 
Fix: Remove reference to lttng-probe-lttng kernel module

The lttng-probe-lttng module was removed as part of lttng-modules
commit 662ed1665428b38ee00d4be5751581108bf35390

Fixes #553

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: memleak in liblttng-ctl visit_node_load()
Mathieu Desnoyers [Fri, 14 Jun 2013 20:34:56 +0000 (16:34 -0400)] 
Fix: memleak in liblttng-ctl visit_node_load()

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: memleak in the UST registry
David Goulet [Fri, 14 Jun 2013 18:37:50 +0000 (14:37 -0400)] 
Fix: memleak in the UST registry

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: add missing free causing a memleak
David Goulet [Fri, 14 Jun 2013 17:35:27 +0000 (13:35 -0400)] 
Fix: add missing free causing a memleak

Also remove a unused variable in the ust registry event structure.

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: memleaks in channel/event notify
David Goulet [Fri, 14 Jun 2013 16:14:53 +0000 (12:14 -0400)] 
Fix: memleaks in channel/event notify

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: sanitize wait queue in the dispatch thread
David Goulet [Thu, 6 Jun 2013 16:37:01 +0000 (12:37 -0400)] 
Fix: sanitize wait queue in the dispatch thread

This is to avoid memory leaks when the notify socket is never received
thus cleaning the wait node for command socket that are invalid.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoImplement health check for app registration dispatch
Mathieu Desnoyers [Fri, 14 Jun 2013 12:02:27 +0000 (08:02 -0400)] 
Implement health check for app registration dispatch

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoImplement health check for app notification thread
Mathieu Desnoyers [Fri, 14 Jun 2013 11:51:50 +0000 (07:51 -0400)] 
Implement health check for app notification thread

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: hash table cleanup call_rcu deadlock
Mathieu Desnoyers [Fri, 14 Jun 2013 11:44:52 +0000 (07:44 -0400)] 
Fix: hash table cleanup call_rcu deadlock

Implement hash table cleanup thread so HT cleanup never deadlocks on
resize in progress.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix ua_chan assert
Mathieu Desnoyers [Thu, 13 Jun 2013 21:07:21 +0000 (17:07 -0400)] 
Fix ua_chan assert

delete_ust_app() can remove a channel objd from the hash table
concurrently with notify

Fix #560

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: poll compat layer reallocation new size
David Goulet [Thu, 6 Jun 2013 19:30:14 +0000 (15:30 -0400)] 
Fix: poll compat layer reallocation new size

The size was doubled but in fact it should have been checked for the
maximum between the number of fd doubled and the alloc size doubled
(divised by two when shrinking the buffer).

Same goes for the shrink process. For that, get_count_order_u32() is
added to utils.c/.h.

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: remove nonblock flag of sessiond socket in consumer
David Goulet [Tue, 4 Jun 2013 19:56:43 +0000 (15:56 -0400)] 
Fix: remove nonblock flag of sessiond socket in consumer

There is no need for non blocking socket. Furthermore, we have observed
unstable behaviors with a non blocking side (consumer) and a blocking
side (sessiond).

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: add missing ht iter node assignment in channel thread
David Goulet [Tue, 4 Jun 2013 16:09:49 +0000 (12:09 -0400)] 
Fix: add missing ht iter node assignment in channel thread

Fixes #547

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: Missing RCU locks on access to consumerd's channel ht
Jérémie Galarneau [Tue, 4 Jun 2013 03:19:59 +0000 (23:19 -0400)] 
Fix: Missing RCU locks on access to consumerd's channel ht

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoRevert "Improve channel listing output format"
David Goulet [Tue, 4 Jun 2013 14:36:57 +0000 (10:36 -0400)] 
Revert "Improve channel listing output format"

This changed the text output *after* rc1. We'll keep this in the back
burner for 2.3.

This reverts commit e78de861055e6288d11348866681d1373ed81aec.

11 years agoFix: add more conditions and a lock to metadata cache flushed
David Goulet [Mon, 3 Jun 2013 17:24:10 +0000 (13:24 -0400)] 
Fix: add more conditions and a lock to metadata cache flushed

Some more conditions applies to return if the metadata cache is indeed
flushed. If no metadata stream is found or the endpoint status is set to
something other than ACTIVE, this means the channel is being (or will
be) destroyed thus the metadata cache can't be updated so is indeed
"flushed".

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: Julien Desfossez <julien.desfossez@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: set metadata closed on a push/close metadata error
David Goulet [Mon, 3 Jun 2013 17:13:55 +0000 (13:13 -0400)] 
Fix: set metadata closed on a push/close metadata error

Check the metadata closed flag before pushing and closing the metadata
on the consumer side. On any error from those two actions, the closed
flag is set to indicate to stop using the metadata registry until a
destroy is done.

Also, before creating a metadata, a check is done to see if the registry
metadata was closed previously or else a new metadata key is created and
the old values from the previous channel in the registry are used
causing a bad state on the consumer.

With per UID buffers, the metadata cache is shared accross multiple
applications so if the metadata buffers were deleted on the consumer for
whatever reasons, we must STOP using it or else undesired behaviors have
been observed such as causing synchronization issues between the state
of the consumer and sessiond.

A destroy session command will wipe the faulty metadata.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: Julien Desfossez <julien.desfossez@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: skip metadata flushed check if write failed
David Goulet [Mon, 3 Jun 2013 17:05:22 +0000 (13:05 -0400)] 
Fix: skip metadata flushed check if write failed

On a metadata cache write failure, we now skip the metadata flushed
check or else an infinite loop could have been possible.

Acked-by: Julien Desfossez <julien.desfossez@efficios.com>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: remove one too many metadata refcount increment
David Goulet [Wed, 29 May 2013 16:19:57 +0000 (12:19 -0400)] 
Fix: remove one too many metadata refcount increment

The refcount increment is removed from the add metadata stream function
so for both kernel and UST, the increment is done once the stream is
allocated and the channel reference is set.

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: add missing buffer registry cleanup on error
David Goulet [Tue, 28 May 2013 21:58:44 +0000 (17:58 -0400)] 
Fix: add missing buffer registry cleanup on error

Fixes #542

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: dereference after NULL check
David Goulet [Tue, 28 May 2013 19:07:30 +0000 (15:07 -0400)] 
Fix: dereference after NULL check

From coverity scan.

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: remove dead code
David Goulet [Tue, 28 May 2013 19:05:04 +0000 (15:05 -0400)] 
Fix: remove dead code

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: wrong size in memcpy of kernel channel padding
David Goulet [Tue, 28 May 2013 18:57:05 +0000 (14:57 -0400)] 
Fix: wrong size in memcpy of kernel channel padding

Issue 1019925 of coverity scan.

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: typo when closing the consumer client socket
David Goulet [Tue, 28 May 2013 18:50:21 +0000 (14:50 -0400)] 
Fix: typo when closing the consumer client socket

Issue 1019917 of covertiry scan.

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoTests: Add multi session per UID with 5 app in streaming mode
David Goulet [Thu, 23 May 2013 15:03:42 +0000 (11:03 -0400)] 
Tests: Add multi session per UID with 5 app in streaming mode

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoTests: Add stress test for multi session per UID
David Goulet [Wed, 22 May 2013 19:17:17 +0000 (15:17 -0400)] 
Tests: Add stress test for multi session per UID

For this test, 10 applications are used with 5 sessions set with per UID
buffers.

A helper script is also added which launch applications with given
parameters. A README file is also present to help developers/users use
the stress tests correctly.

Stress tests save the stderr/stdout of the session daemon in a log file
and core dump created using the name found in core_pattern (in /proc).

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: get consumer lock before closing/pushing metadata
David Goulet [Tue, 28 May 2013 18:25:27 +0000 (14:25 -0400)] 
Fix: get consumer lock before closing/pushing metadata

This is to ensure the validity of the metadata stream in the channel
before closing or pushing the metadata on it.

Fixes #536

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: set channel key to message on notify channel
David Goulet [Tue, 28 May 2013 17:06:38 +0000 (13:06 -0400)] 
Fix: set channel key to message on notify channel

Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: increment channel refcount on add_stream
Julien Desfossez [Thu, 23 May 2013 23:07:20 +0000 (19:07 -0400)] 
Fix: increment channel refcount on add_stream

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
11 years agoFix: error handling in kernel add_channel
Julien Desfossez [Thu, 23 May 2013 21:07:08 +0000 (17:07 -0400)] 
Fix: error handling in kernel add_channel

consumer_add_channel can return an error, it needs to be handled. Also,
init_kernel_tracing returns a positive lttng_error_code on error, so the
check in start_kernel_session needs to be for ret != 0.

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
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