Jonathan Rajotte [Sat, 28 May 2016 06:34:23 +0000 (02:34 -0400)]
Fix: set the logger level to prevent unexpected level inheritance
BSF and other jars can ship with an embedded log4j.properties
file. This causes problem when launching an application with a general
class path (e.g /usr/share/java/*) since log4j will look for a
configuration file in all loaded jars. If any contains a directive for
the root logger, it will affect any logger with no level that are
directly under the root logger. This can result in an unexpected
behaviour (e.g no events triggered etc.).
Link: https://issues.apache.org/jira/browse/BSF-24
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Sat, 17 Oct 2015 23:41:47 +0000 (19:41 -0400)]
Port: Don't use SIGUNUSED which is not defined on Solaris
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Fri, 20 May 2016 21:43:17 +0000 (17:43 -0400)]
Update version to v2.7.3
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Thu, 17 Sep 2015 20:42:35 +0000 (16:42 -0400)]
Fix: use start and stop sessiond from utils.sh
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Mon, 16 May 2016 04:21:20 +0000 (00:21 -0400)]
Clarify kernel version check error messages
Refs #949
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Mon, 16 May 2016 02:06:01 +0000 (22:06 -0400)]
Fix: Error reported if no domain is provided for start/stop
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Sun, 15 May 2016 21:38:55 +0000 (17:38 -0400)]
Handle unknown domain in MI
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Sun, 15 May 2016 21:38:41 +0000 (17:38 -0400)]
Handle unknown domain on session start
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Thu, 5 Nov 2015 21:19:38 +0000 (16:19 -0500)]
Fix: loading of live session within userspace domains
The output of a session is session-specific and not bound to
a domain. The "lttng_set_consumer_url" already acts on a
session-wide basis.
Fixes #973
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Wed, 13 Apr 2016 22:06:13 +0000 (18:06 -0400)]
Docs: fix "daemon" typo in README.md
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Tue, 22 Mar 2016 18:12:04 +0000 (14:12 -0400)]
Fix: do not return error on LTTNG_ERR_SNAPSHOT_NODATA
A warning is fine since the user has no control on
whether or not applications (or the kernel) have
produced any event between the start of the tracing
session and the recording of the snapshot.
MI wise the command is not a success since nothing was
recorded. The command line return code is CMD_SUCCESS.
refs #1002
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Fri, 19 Feb 2016 19:32:21 +0000 (14:32 -0500)]
Fix: Set loopback adress in set_ip_addr if gethostbyname2 fails
Some systems may not have "localhost" defined in accordance with IETF
RFC 6761. According to this RFC, applications may recognize
"localhost" names as special and resolve to the appropriate loopback
address.
We choose to use the system name resolution API first to honor its
network configuration. If this fails, we resolve to the appropriate
loopback address. This is done to accomodate systems which may want to
start tracing before their network configured.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Thu, 17 Mar 2016 18:56:02 +0000 (14:56 -0400)]
Fix: d_type validity is not guaranteed on all nfs versions
When using lttng-crash on files mounted on a nfs mount the d_type from
the dirent struct is not necessarily set and results in a DT_UNKNOWN
d_type.
stat() provides the valid information on an nfs mount.
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Mon, 26 Oct 2015 14:21:05 +0000 (10:21 -0400)]
Tests: same event name with different descriptor on load
Refs #959
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Fri, 23 Oct 2015 15:32:44 +0000 (11:32 -0400)]
Fix: load event state (enabled/disabled) correctly
This bug fix is a workaround due to limitations of lttng_disable_event_ext
regarding the disabling of events with similar name but different
characteristics. Although lttng_disable_event_ext provides support for
disabling by name and filter string it does not support exclusion.
The loading of events is cut in 3 phases.
1 - Create all events regardless of their state.
2 - Disable all events.
3 - Enable only the events with the 'enabled' state.
Fixes #959
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Thu, 19 May 2016 22:48:16 +0000 (18:48 -0400)]
Fix: only perform lttng_consumer_sync_trace_file() in local mode
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Thu, 19 May 2016 22:24:20 +0000 (18:24 -0400)]
Fix: don't negate posix_fadvise return value to check error
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Thu, 19 May 2016 18:20:08 +0000 (14:20 -0400)]
Rename lttng_error_type to lttng_error_level
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Thu, 19 May 2016 15:57:45 +0000 (11:57 -0400)]
Cleanup error.h __lttng_print() used for message printing
The loglevels have never really been a mask, and it is useless to try to
use them as masks, because the compiler statically knows the value of
the loglevel requested, and can therefore optimise away all the logic.
This takes care of Coverity warning about mixed bitwise and boolean
logic, which was technically correct, but more complex than needed.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Thu, 19 May 2016 15:57:44 +0000 (11:57 -0400)]
Update coding style document for macro style
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Thu, 19 May 2016 15:57:43 +0000 (11:57 -0400)]
Fix: coding style document has erroneous semicolon at end of macro
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Thu, 19 May 2016 15:57:42 +0000 (11:57 -0400)]
Fix: add missing semicolons after MSG, DBG, ERR print macros
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Fri, 18 Mar 2016 22:25:23 +0000 (18:25 -0400)]
Fix: Use get_domain_str on add context
Fixes #1006
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Thu, 19 May 2016 05:35:44 +0000 (01:35 -0400)]
Tests: inverted condition in test_kernel_data
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Wed, 18 May 2016 18:04:13 +0000 (14:04 -0400)]
Fix: ust-consumer: flush empty packets on snapshot channel
Snapshot operation on a non-stopped stream should use a "final" flush to
ensure empty packets are flushed, so we gather timestamps at the moment
where the snapshot is taken. This is important for streams that have a
low amount of activity, which might be on an empty packet when the
snapshot is triggered.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Wed, 18 May 2016 18:04:16 +0000 (14:04 -0400)]
Fix: WARN() should print as WARN level, not ERR
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Wed, 18 May 2016 18:04:15 +0000 (14:04 -0400)]
Fix: error.h: add missing parenthesis around macro parameter
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Wed, 18 May 2016 18:04:14 +0000 (14:04 -0400)]
Fix: bogus mask on error.h PRINT types
PRINT_ERR maps to 0x1, PRINT_WARN maps to 0x2, which is fine so far to
use as masks, but PRINT_BUG maps to 0x3, which is the same as both
PRINT_ERR and PRINT_WARN, and does not make sense to use in masks with
__lttng_print:
(type & (PRINT_WARN | PRINT_ERR | PRINT_BUG))
Fix this by ensuring PRINT_BUG has its own mask, and express all
constants as shifts to eliminate the risk of re-introducing a similar
bug in the future.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Wed, 18 May 2016 18:04:12 +0000 (14:04 -0400)]
Fix: kernel tracing: flush after stop
We should flush the last packet after stop, not before. Otherwise, we
may end up with events written immediately after the flush, which
defeats the purpose of flushing.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Wed, 18 May 2016 18:04:11 +0000 (14:04 -0400)]
Fix: UST should not generate packet at destroy after stop
In the following scenario:
- create, enable events (ust),
- start
- ...
- stop (await for data_pending to complete)
- destroy
- rm the trace directory
We would expect that the "rm" operation would not conflict with the
consumer daemon trying to output data into the trace files, since the
"stop" operation ensured that there was no data_pending.
However, the "destroy" operation currently generates an extra packet
after the data_pending check (the "on_stream_hangup"). This causes the
consumer daemon to try to perform trace file rotation concurrently with
the trace directory removal in the scenario above, which triggers
errors. The main reason why this empty packet is generated by "destroy"
is to deal with trace start/stop scenario which would otherwise generate
a completely empty stream.
Therefore, introduce the concept of a "quiescent stream". It is
initialized at false on stream creation (first packet is empty). When
tracing is started, it is set to false (for cases of start/stop/start).
When tracing is stopped, if the stream is not quiescent, perform a
"final" flush (which will generate an empty packet if the current packet
was empty), and set quiescent to true. On "destroy" stream and on
application hangup: if the stream is not quiescent, perform a "final"
flush, and set the quiescent state to true.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Wed, 18 May 2016 22:35:45 +0000 (18:35 -0400)]
Tests: remove flaky '*' kernel wildcard test
The test case for '*', which enables all events, is flaky by its
nature since buffers may be filled by other kernel events preventing
the test script from finding the test event (it is often discarded).
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Wed, 18 May 2016 18:04:10 +0000 (14:04 -0400)]
Fix: bad file descriptors on close after rotation error
Ensure we don't try to close output stream file descriptors twice when a
trace file rotation error occurs (once at tracefile rotation, once when
closing the stream). Set the fd value to -1 after the first close to
ensure we don't try to close it again.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Wed, 18 May 2016 20:05:19 +0000 (16:05 -0400)]
Fix: posix_fadvise wrapper returns -ENOSYS on FreeBSD
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Michael Jeanson [Wed, 18 May 2016 16:17:27 +0000 (12:17 -0400)]
Fix: Double free in utils_partial_realpath error path
Fixes coverity #
1355521
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 16:31:23 +0000 (12:31 -0400)]
Fix: remove logically dead code in send_channel_uid_to_ust
Found by Coverity:
at_most: At condition ret < 0, the value of ret must be at most -1.
cannot_set: At condition ret < 0, the value of ret cannot be equal
to any of {-1030, -32}.
dead_error_condition: The condition ret < 0 must be true.
2825 } else if (ret < 0) {
2826 goto error_stream_unlock;
2827 }
CID
1323135 (#1 of 1): Logically dead code
(DEADCODE)dead_error_line: Execution cannot reach this statement: goto
error_stream_unlock;.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 16:22:44 +0000 (12:22 -0400)]
Fix: unchecked return value in low throughput test
Found by Coverity:
CID
1019967 (#1 of 1): Unchecked return value from library
(CHECKED_RETURN)2. check_return: Calling poll(NULL, 0UL, 60000) without
checking return value. This library function may fail and return an
error code.
We really don't care whether this poll succeeds or not.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Tue, 17 May 2016 16:17:05 +0000 (12:17 -0400)]
Fix: unchecked posix_fadvise() return value
Found by Coverity:
CID
1019971 (#1 of 1): Unchecked return value from library
(CHECKED_RETURN)2. check_return: Calling posix_fadvise(outfd,
orig_offset - stream->max_sb_size, stream->max_sb_size, 4) without
checking return value. This library function may fail and return an
error code.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 16:13:13 +0000 (12:13 -0400)]
Fix: unchecked return value in relayd live.c
CID
1323137 (#1 of 1): Unchecked return value (CHECKED_RETURN)30.
check_return: Calling viewer_stream_get without checking return value
(as is done elsewhere 5 out of 6 times).
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 16:06:45 +0000 (12:06 -0400)]
Fix: unchecked return value in trace_clock_read64_monotonic
Found by Coverity:
CID
1311498 (#1 of 1): Unchecked return value (CHECKED_RETURN)1.
check_return: Calling clock_gettime without checking return value (as is
done elsewhere 8 out of 9 times).
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Tue, 17 May 2016 15:52:47 +0000 (11:52 -0400)]
Fix: initialize the cur_event variable before using it
CID
1243041 (#1 of 1): Uninitialized scalar variable (UNINIT)
uninit_use_in_call: Using uninitialized element of array *cur_event.name when
calling strcmp.
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 14:44:25 +0000 (10:44 -0400)]
Fix: NULL pointer dereference in relay_index_get_by_id_or_create
Found by Coverity:
CID
1323134 (#1 of 1): Dereference after null check (FORWARD_NULL)34.
var_deref_op: Dereferencing null pointer index.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Wed, 18 May 2016 17:20:08 +0000 (13:20 -0400)]
Fix: Deference after null check in sessiond set_option
Found by Coverity:
2. var_compare_op: Comparing arg to null implies that arg might be null.
CID
1256137 (#1 of 9): Dereference after null check (FORWARD_NULL)14.
var_deref_model: Passing null pointer arg to strdup, which dereferences
it.
[... same for #2 through #9 ]
This should not really be an issue since
1) options that use the "arg" parameter will not be set by popt if one
is not provided,
2) the configuration file parser will never invoke set_option with
a NULL argument; if no "value" is provided in the file, an empty
string is passed.
The second point is the reason for the "arg && arg[0] == '\0'" check;
we already know that the argument is invalid since an empty string
is never a valid argument for the supported options.
Nonetheless, it makes sense for Coverity to flag this and moving
the check to individual cases, although very verbose, is clear.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 13:23:50 +0000 (09:23 -0400)]
Fix: Wrong sizeof argument in pid tracker
Found by Coverity:
CID
1292557 (#1 of 1): Wrong sizeof argument
(SIZEOF_MISMATCH)suspicious_sizeof: Passing argument 8UL /* sizeof
(*_pid_list) */ to function zmalloc and then casting the return value to
int * is suspicious.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 13:20:17 +0000 (09:20 -0400)]
Fix: tests: incorrect uri index
Initial issue found by Coverity:
CID
1322864 (#1 of 1): Constant expression result
(CONSTANT_EXPRESSION_RESULT)impossible_and: The "and" condition size ==
2L && (uri + 0).dtype == LTTNG_DST_IPV4 && (uri + 0).utype ==
LTTNG_URI_DST && (uri + 0).stype == 0U && (uri + 0).port == 8989 &&
strcmp((uri + 0).subdir, "my/test/path") == 0 && strcmp((uri +
0).dst.ipv4, "127.0.0.1") == 0 && (uri + 1).dtype == LTTNG_DST_IPV4 &&
(uri + 1).utype == LTTNG_URI_DST && (uri + 1).stype == 0U && (uri +
1).port == 4242 && strcmp((uri + 0).subdir, "my/test/path") == 0 &&
strcmp((uri + 1).dst.ipv4, "127.0.0.1") == 0 can never be true because
(uri + 0).subdir cannot be equal to two different values at the same
time.
Review of the test source file led to further fixes.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 13:11:39 +0000 (09:11 -0400)]
Fix: Integer overflowed argument
Found by Coverity:
CID
1242317 (#1 of 2): Integer overflowed argument (INTEGER_OVERFLOW)25.
overflow_sink: Overflowed or truncated value (or a value computed from
an overflowed or truncated value) new_nbmem * 304UL used as critical
argument to function.
CID
1242317 (#2 of 2): Integer overflowed argument (INTEGER_OVERFLOW)27.
overflow_sink: Overflowed or truncated value (or a value computed from
an overflowed or truncated value) (new_nbmem - nbmem) * 304UL used as
critical argument to function.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 13:01:51 +0000 (09:01 -0400)]
Fix: macro compares unsigned to 0 (no effect)
Found by Coverity:
CID
1262117 (#1 of 1): Macro compares unsigned to 0
(NO_EFFECT)unsigned_compare: This greater-than-or-equal-to-zero
comparison of an unsigned value is always true. events->nb_fd >= 0U.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Michael Jeanson [Tue, 17 May 2016 18:12:09 +0000 (14:12 -0400)]
Fix: Free variable before strdup() in process_event_node
Fixes coverity #
1243040
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Michael Jeanson [Tue, 17 May 2016 18:08:00 +0000 (14:08 -0400)]
Fix: Free variables before strdup()
Fixes coverity #
1243047 and #
1243050
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Michael Jeanson [Mon, 16 May 2016 23:33:08 +0000 (19:33 -0400)]
Fix: Add missing free() in spawn_viewer
Fixes coverity #
1291948
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Michael Jeanson [Mon, 16 May 2016 23:27:30 +0000 (19:27 -0400)]
Fix: Add missing free() in utils_partial_realpath
Fixes coverity #
1328401
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:43:01 +0000 (21:43 -0400)]
Fix: illegal memory access in test_create_kernel_event
Found by Coverity:
CID
1243030 (#1 of 1): Buffer not null terminated (BUFFER_SIZE_WARNING)1.
buffer_size_warning: Calling strncpy with a maximum size argument of 256
bytes on destination array ev.name of size 256 bytes might leave the
destination string unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:59 +0000 (21:42 -0400)]
Fix: illegal memory access in send_viewer_streams
Found by Coverity:
CID
1243037 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)18. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array
send_stream.path_name of size 4096 bytes might leave the destination
string unterminated.
CID
1243037 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)18. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array
send_stream.channel_name of size 255 bytes might leave the destination
string unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:58 +0000 (21:42 -0400)]
Fix: illegal memory access in viewer_list_sessions
Found by Coverity:
CID
1243025 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)17. buffer_size_warning: Calling strncpy with a
maximum size argument of 64 bytes on destination array
send_session->hostname of size 64 bytes might leave the destination
string unterminated.
CID
1243025 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)17. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array
send_session->session_name of size 255 bytes might leave the destination
string unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:57 +0000 (21:42 -0400)]
Fix: illegal memory access in relayd_add_stream
Found by Coverity:
CID
1243017 (#1 of 4): Buffer not null terminated
(BUFFER_SIZE_WARNING)14. buffer_size_warning: Calling strncpy with a
maximum size argument of 264 bytes on destination array msg.channel_name
of size 264 bytes might leave the destination string unterminated.
ID
1243017 (#2 of 4): Buffer not null terminated
(BUFFER_SIZE_WARNING)14. buffer_size_warning: Calling strncpy with a
maximum size argument of 264 bytes on destination array
msg_2_2.channel_name of size 264 bytes might leave the destination
string unterminated.
CID
1243017 (#3 of 4): Buffer not null terminated
(BUFFER_SIZE_WARNING)15. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array msg.pathname of
size 4096 bytes might leave the destination string unterminated.
CID
1243017 (#4 of 4): Buffer not null terminated
(BUFFER_SIZE_WARNING)15. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array
msg_2_2.pathname of size 4096 bytes might leave the destination string
unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:56 +0000 (21:42 -0400)]
Fix: illegal memory access in relayd_create_session_2_4
Found by Coverity:
CID
1243024 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)2. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array msg.session_name
of size 255 bytes might leave the destination string unterminated.
CID
1243024 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)3. buffer_size_warning: Calling strncpy with a
maximum size argument of 64 bytes on destination array msg.hostname of
size 64 bytes might leave the destination string unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:55 +0000 (21:42 -0400)]
Fix: illegal memory access in session_create
Found by Coverity:
CID
1323138 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)3. buffer_size_warning: Calling strncpy with a
maximum size argument of 64 bytes on destination array session->hostname
of size 64 bytes might leave the destination string unterminated.
CID
1323138 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)3. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array
session->session_name of size 255 bytes might leave the destination
string unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:54 +0000 (21:42 -0400)]
Fix: illegal memory access in consumer_set_subdir
Found by Coverity:
CID
1243015 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)8. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array
consumer->subdir of size 4096 bytes might leave the destination string
unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:53 +0000 (21:42 -0400)]
Fix: illegal memory access in syscall_init_table
Found by Coverity:
CID
1243021 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)25. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array (syscall_table +
index).name of size 255 bytes might leave the destination string
unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:52 +0000 (21:42 -0400)]
Fix: illegal memory access in write_pidfile
Found by Coverity:
CID
1243023 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)3. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array pidfile_path of
size 4096 bytes might leave the destination string unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:51 +0000 (21:42 -0400)]
Fix: illegal memory access in list_lttng_channels
Found by Coverity:
CID
1243018 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)11. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array (channels +
i).name of size 256 bytes might leave the destination string
unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:50 +0000 (21:42 -0400)]
Fix: illegal memory access in cmd_snapshot_record
Found by Coverity:
CID
1243027 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)20. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array tmp_output.name
of size 255 bytes might leave the destination string unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:49 +0000 (21:42 -0400)]
Fix: illegal memory access in output_init
Found by Coverity:
CID
1243028 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)5. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array output->name of
size 255 bytes might leave the destination string unterminated.
CID
1243028 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)10. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array
output->consumer->dst.trace_path of size 4096 bytes might leave the
destination string unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:48 +0000 (21:42 -0400)]
Fix: illegal memory access in consumer_set_network_uri
Found by Coverity:
CID
1243029 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)31. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array obj->subdir of
size 4096 bytes might leave the destination string unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:47 +0000 (21:42 -0400)]
Fix: illegal memory access in cmd_snapshot_list_outputs
Found by Coverity:
CID
1243031 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)22. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array (list +
idx).ctrl_url of size 4096 bytes might leave the destination string
unterminated.
CID
1243031 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)26. buffer_size_warning: Calling strncpy with a
maximum size argument of 255 bytes on destination array (list +
idx).name of size 255 bytes might leave the destination string
unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:46 +0000 (21:42 -0400)]
Fix: illegal memory access in list_events
Found by Coverity:
CID
1243022 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)23. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array (tmp_events +
i).name of size 256 bytes might leave the destination string
unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:45 +0000 (21:42 -0400)]
Fix: illegal memory access in disable_event
Found by Coverity:
CID
1243016 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)14. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array msg.name of size
256 bytes might leave the destination string unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:43 +0000 (21:42 -0400)]
Fix: illegal memory access in add_uri_to_consumer
Found by Coverity:
CID
1243038 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)15. buffer_size_warning: Calling strncpy with a
maximum size argument of 4096 bytes on destination array
consumer->dst.trace_path of size 4096 bytes might leave the destination
string unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:42 +0000 (21:42 -0400)]
Fix: illegal memory access in init_ust_event_from_agent_event
Found by Coverity:
CID
1321741 (#1 of 1): Buffer not null terminated
(BUFFER_SIZE_WARNING)1. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array
ust_event->attr.name of size 256 bytes might leave the destination
string unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:41 +0000 (21:42 -0400)]
Fix: illegal memory access in _cmd_enable_event
Found by Coverity:
CID
1321742 (#1 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)21. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array attr->name of
size 256 bytes might leave the destination string unterminated.
CID
1321742 (#2 of 2): Buffer not null terminated
(BUFFER_SIZE_WARNING)22. buffer_size_warning: Calling strncpy with a
maximum size argument of 256 bytes on destination array attr->name of
size 256 bytes might leave the destination string unterminated.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Tue, 17 May 2016 01:42:40 +0000 (21:42 -0400)]
Implement lttng_strncpy safe string copy
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Mon, 16 May 2016 16:10:19 +0000 (12:10 -0400)]
Fix: loading a session prints an error message but the load is successful
Fixes #1013
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Mon, 16 May 2016 05:20:47 +0000 (01:20 -0400)]
Snapshot warning if there are no events in one of the domains
Remove the "no data" check from the UST snapshot code since
1) It would report that no data was recorded in the snapshot even
if the kernel tracer had recorded events,
2) The kernel consumer does not seem to report such a condition,
making it hard to perform the check without modifying the
consumer.
The consumer interfaces could be modified to reliably provide
this information in the future.
However, this warning is not provided in the other tracing
modes, making its usefulness questionable. An empty snapshot is
still a valid trace and users should not always expect a trace
to contain events. Moreover, "warning" that no data was produced
implies an error may have occured and is probably as confusing
as opening an empty trace to the average user.
Fixes #1012
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Fri, 13 Nov 2015 15:36:47 +0000 (10:36 -0500)]
Snapshot: record: use same datetime for snapshot folder output
Make sure that the ust snapshot is put under the same folder as the
kernel snapshot.
Fixes #970
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Fri, 13 Nov 2015 15:30:01 +0000 (10:30 -0500)]
Refactor: move the snapshot type check into output type check
Since for both sub-session type the boilerplate is the same
simply move the check for sub-session type presence to the inner
check of type output.
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Philippe Proulx [Tue, 10 May 2016 20:00:28 +0000 (16:00 -0400)]
configure.ac: check for an existing liburcu-cds symbol
Fixes #1001
Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Philippe Proulx [Tue, 10 May 2016 19:51:17 +0000 (15:51 -0400)]
configure.ac: use macro for wrong liburcu error message
Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Sat, 14 May 2016 20:27:20 +0000 (16:27 -0400)]
Tests: wording of trace_matches is misleading
trace_matches reports a number of "events found" in a trace while it
actually counts the number of event_name matches.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Michael Jeanson [Tue, 19 Apr 2016 20:34:55 +0000 (16:34 -0400)]
Typo: catched -> caught
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Tue, 19 Apr 2016 18:21:37 +0000 (14:21 -0400)]
Update version to v2.7.2
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Thu, 17 Mar 2016 20:18:14 +0000 (16:18 -0400)]
Clean-up shm directory tree after freeing the channel
On NFS, an unlinked file that is still mmaped or unclosed is kept
around by creating a .nfsXXXX file since it may still be in use. [1]
This prevents the effective cleanup of the shm tree directory because
it happens before the userspace consumer shm handles table
cleanup. [2]
Moving the tree removal to lttng_ustconsumer_free_channel ensures that
the cleanup is done when the files are completely closed/unmapped.
[1] http://nfs.sourceforge.net/ Look for "silly rename"
[2] See channel_free subcall to shm_object_table_destroy
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Thu, 10 Mar 2016 19:23:28 +0000 (14:23 -0500)]
Test: Add the lttng-runas worker process to the sessiond pids
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Thu, 8 Oct 2015 18:01:40 +0000 (14:01 -0400)]
Limit the scope of IFS overwriting
The overwrite caused a folder ' ' to be created locally when running root tests.
Use while loop to preserve space in invalid filter string.
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Tue, 6 Oct 2015 19:41:41 +0000 (15:41 -0400)]
Do not overwrite IFS globally but only locally
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Thu, 10 Mar 2016 16:13:37 +0000 (11:13 -0500)]
Fix: tests: use SIGSTOP for crash extraction test
Ensure that SIGKILL being received only by some consumer processes don't
trigger clean shutdown of other consumer processes (due to hang up of
communication FD by the session daemon).
Fix this by invoking a SIGSTOP on both sessiond and consumerd, and wait
until we see those process state change to "stopped" before proceeding
to send the SIGKILL.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
CC: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Tue, 8 Mar 2016 17:08:12 +0000 (12:08 -0500)]
Fix: Only save kernel enablers in session configuration
The session configuration serialization currently saves the
kernel enablers along with all enabled syscalls. In the case
where a syscall would be enabled with a given filter, this would
result in two events being enabled:
1) the syscall with its filter expression (the enabler)
2) the syscall on its own (an enabled syscall)
The observable effect of this is that the syscall ends up being
traced regardless of the filter's evaluation.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Tue, 8 Mar 2016 17:06:14 +0000 (12:06 -0500)]
Fix: Only list kernel enablers when listing events
lttng list would list kernel enablers and individual enabled
syscalls which would result in a confusing output.
For instance, enabling the "open" syscall with a filter would
result in a list output displaying both the enabler,
the syscall's name + its filter, and the syscall on its own,
without any mention of an enabled filter.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Tue, 8 Mar 2016 16:11:33 +0000 (11:11 -0500)]
Fix: syscalls hash table leaks when listing kernel events
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Wed, 9 Mar 2016 20:49:24 +0000 (15:49 -0500)]
Test fix: ignore stderr at every step of randstring
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Wed, 9 Mar 2016 20:26:37 +0000 (15:26 -0500)]
Test fix: ignore stderr when generating random string
tr often reports a broken pipe when the head command exits
(after having received enough characters) which pollutes the
test output.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Thu, 14 Jan 2016 18:40:42 +0000 (13:40 -0500)]
Fix: test: use load_path instead of $1
$1 is used for tap condition checking not the load path.
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Tue, 23 Feb 2016 20:18:18 +0000 (15:18 -0500)]
Fix warning when building Python bindings
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Tue, 8 Mar 2016 22:37:39 +0000 (17:37 -0500)]
Test: prevent the spawning of a daemonized sessiond
Sets the default lttng-sessiond path to /bin/true to prevent the spawning
of a daemonized sessiond. This is necessary since 'lttng create' will spawn
its own sessiond if none is running. It also ensures that 'lttng create'
fails when no sessiond is running.
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jonathan Rajotte [Thu, 15 Oct 2015 20:45:30 +0000 (16:45 -0400)]
Fix: There is more tests than the plan
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Mathieu Desnoyers [Wed, 24 Feb 2016 00:41:40 +0000 (19:41 -0500)]
Fix: per-pid ust buffers flush race with application unregister
If an application exits between the moment we create the ust app session
(shadow copy) and the moment we send channels to the application,
sending channels may fail. If the application unregisters between the
the end of ust app session creation and the destroy that follows (ust
app session lock is released in between), we may see is_sent being
false.
This assert was initially there in the early days of lttng-tools when
the application was responsible for doing the flush. Now that the flush
has been moved to the consumer daemon, we don't need this assertion
anymore.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Michael Jeanson [Thu, 18 Feb 2016 17:45:13 +0000 (12:45 -0500)]
Fix: Use ipv6 loopback adress in test_uri
Some older version of Debian/Ubuntu and maybe other distros won't set
localhost to point on ::1 in the system hosts file and use instead a
custom name like ip6-localhost or ipv6-locahost which is not
standardized across distros.
To work around this, use the ipv6 loopback address instead of localhost.
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Sun, 14 Feb 2016 23:22:03 +0000 (18:22 -0500)]
Fix: report already enabled event error to client
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Conflicts:
src/bin/lttng-sessiond/cmd.c
Jérémie Galarneau [Fri, 12 Feb 2016 21:41:49 +0000 (16:41 -0500)]
Tests fix: source utils.sh before using conf_proc_count
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Fri, 12 Feb 2016 16:19:22 +0000 (11:19 -0500)]
Tests: use configured processor count in getcpu override tests
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Conflicts:
tests/regression/ust/getcpu-override/test_getcpu_override
Jérémie Galarneau [Fri, 12 Feb 2016 16:17:42 +0000 (11:17 -0500)]
Tests: use configured processor count in snapshot tests
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Jérémie Galarneau [Fri, 12 Feb 2016 16:17:18 +0000 (11:17 -0500)]
Tests: Introduce conf_proc_count()
Tests are using the nproc utility which return the number of
_available_ CPUs. The distinction between online, available and
configured CPUs is subtle, but important.
The number of "online" CPUs can change at runtime as CPUs are
hot-plugged. This could happen during a test and result in
unexpected results.
The number of "configured" CPUs includes any CPU which may be
offline at the time.
The number of "available" CPUs, which is what is returned by the
nproc utility, may differ from both "online" and "configured"
counts. This is the case in containers which are assigned to a
subset of configured CPUs.
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
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