ChangeLog

   1 2013-06-25 lttng-tools 2.2.0 (National Catfish Day)
   2         * STABLE VERSION
   3         * Fix: if relayd is unreachable, disable consumer for the session
   4         * Fix: possible infinite loop in disable ust event
   5         * Fix: don't enable a channel if a session was already started
   6         * Fix: bad type for the relayd id
   7         * Fix: add debug statement in kernel flush metadata
   8         * Fix: destroy default created channel if add-context fails
   9         * Fix: clarify tracefile size/count in lttng.1 man
  10         * Fix: don't stop a session that was not previously started
  11         * Fix: update lttng.1 man page
  12         * Fix: bad protocol flow between sessiond and consumerd
  13         * Fix: kernel memory leak in error path
  14
  15 2013-06-20 lttng-tools 2.2.0-rc3
  16         * Multiple memory and fd leak fixes in sessiond and consumerd
  17         * Test: stress test added to the repository but not in make check
  18         * Using LTTNG_HOME environment variable if exists, with fallback to HOME
  19         * Implement health check for app registration dispatch
  20         * Implement health check for app notification thread
  21         * Revert "Improve channel listing output format"
  22         * Fix: use lttng pipe to send new stream to thread
  23         * Change consumer_metadata_pipe to be a lttng_pipe
  24         * Change consumer_data_pipe to be a lttng_pipe
  25         * Add wrappers for pipe
  26         * Add --version command-line option to lttng.
  27         * Add --with-lttng-ust-prefix config option.
  28         * Fixes from coverity scan.
  29         * Stability fixes
  30         * RCU hash table are now destroyed in a seperate thread in sessiond
  31
  32 2013-05-09 lttng-tools 2.2.0-rc2
  33         * Fix: split UST per UID/PID default values
  34         * Fix: don't start the relayd with a wrong --output dir
  35         * Fix: Erroneous automatic session name when streaming
  36         * Fix: wrong data port when listing session's URI
  37         * Fix: don't create a channel on an enable channel
  38         * Tests: Add missing test_utils_parse_size_suffix to unit tests
  39         * Fix: print lttng strerror on enable event with filter
  40         * Fix: change relayd protocol version to 2.2
  41         * Fix: reset current size for tracefile rotation
  42         * Fix: remove extra -I for python bindings
  43         * lttng UI: round up trace file size to subbuf size if needed
  44         * Fix lttng UI: fix arg parsing, round size to next power of two
  45         * Fix: check errors in lttng command argument values
  46         * Implement get_count_order in lttng utils
  47         * lttng cli: Accept human readable sizes for --subbuf-size
  48         * Unit tests: don't rebuild units under test
  49         * Fix: consumerd metadata channel/cache/timer races
  50         * Fix: consumerd channel destroy race
  51         * Cleanup: document RCU read-side lock better
  52         * consumer relayd interaction: fix segfaults
  53         * Fix: change order of fd get to fix error path
  54         * Fix: fd leak when creating UST metadata channel
  55         * Fix: fd leak on error
  56         * Fix consumerd fd leak
  57         * Fix RCU-related hangs: incorrect lttng_ht_destroy use
  58         * rculfhash: check for callers from RCU read-side C.S.
  59         * Fix: don't call hash table destroy under rcu read-side c.s.
  60         * Documentation: import updated comments from urcu
  61         * Fix: segfault in buffer_reg_channel_destroy()
  62         * Fix: add missing goto error in UST consumer
  63         * Fix: no need to use run_as_open in the relayd
  64         * Fix: typo in enable-channel man and help
  65         * Fix: add some missing hidden attribute
  66         * Fix: per-uid buffers should only be flushed once on stop
  67         * Cleanup: Use own mutex within timer setup/teardown
  68         * Fix: channel management thread should hold a refcount
  69         * Fix: move metadata cache setup before ownership passing
  70         * Fix: consumer metadata switch timer error handling
  71         * Fix: set ptr to NULL to suppress old gcc warnings
  72         * Fix: linking order of libraries
  73         * Fix: multiple type mismatch in debug statement
  74         * Fix: remove mention of trace directory layout in quickstart doc
  75         * Fix: remove unused path variables from session obj
  76         * Fix: update lttng.1 man and enable-channel help with read timer size
  77         * Fix: use channel per domain default values
  78         * Fix: typos in the code base
  79         * Fix: deny multiple event types with enable-event
  80         * Fix: deny the same port for data and control URL
  81         * Fix: reset consumer destination when changing URIs
  82         * Fix: don't allow different control and data destination
  83         * Fix: typos in error strings
  84         * Improve channel listing output format
  85         * Fix: enable-channel accepts mismatched option
  86         * Fix: validate buffer type for UST channel creation
  87
  88 2013-03-28 lttng-tools 2.2.0-rc1
  89         * Add UST per UID buffers support
  90         * UST metadata generation are created on the sessiond side
  91         * Move LTTng-UST buffer ownership from application to consumer
  92         * Add a UST registry of events and channel in the sessiond
  93         * UST periodical metadata flush
  94         * Refactor tests to use prove and tap
  95         * Support for trace file rotation for the relayd and on disk
  96         * Support per-context filtering
  97         * Add channel wakeup fd to monitor close
  98         * Deprecate enable/disable-consumer
  99         * Multiple fixes and memory leak fix.
 100
 101 2012-12-20 lttng-tools 2.1.0 (13th Baktun)
 102         * STABLE VERSION 2.1.0-stable - "Basse Messe"
 103         * Multiple minor fixes
 104         * Multiple memory and fd leaks
 105         * Fix: Off by one in seq num for data pending command
 106         * Fix: flag metadata stream on quiescent control cmd
 107         * Fix: prioritize control socket communication in relayd
 108         * Fix: poll and epoll fd set reallocation
 109         * Fix: add missing goto pending if data is inflight
 110         * Fix: remove ua_sess->started assert on stop trace
 111         * Set classes of traffic in high_throughput_limit
 112         * Fix: use the poll wait ret value when iterating on fd(s)
 113         * Fix: force the poll() return value to be nb_fd
 114         * Fix: Wrong check of node when cleaning up ht
 115         * Fix: set started flag of ust app after ustctl
 116         * Fix: memory leak in add relayd socket error path
 117         * Fix: add packed attribute to filter structure
 118         * Fix: Add missing health code update for consumer command
 119         * Add LTTNG_PACKED macro
 120         * Fix data pending for inflight streaming
 121         * Map session id of relayd and sessiond in consumer
 122         * Add the relayd create session command
 123         * Make the consumer sends a ACK after each command
 124         * Remove MSG_WAITALL on every recvmsg() socket typ
 125         * Fix: Add missing relayd ht cleanup and ht destroy
 126         * Fix: Relayd and sessiond version check
 127         * Fix: protect consumer_find_channel with rcu locking
 128         * Fix: don't steal key when adding a metadata stream
 129         * Consumer hold stream mutex for add stream
 130
 131 2012-12-03 lttng-tools 2.1.0-rc9
 132         * Fix: set the stream ht static in consumer file
 133         * Update sessiond man page with new env var
 134         * Update lttng.1 man page
 135         * Fix: enable-consumer for all domains missing dir
 136         * Fix: Add missing fct prototypes when disabling UST
 137         * Fix a typo in lttng-probe-module name
 138         * Assign values to enum lttcomm_sessiond_command
 139         * Fix: run health test only if root
 140         * Clarify empty string/NULL filter errors
 141         * Fix: add missing padding for UST filter
 142
 143 2012-11-22 lttng-tools 2.1.0-rc8
 144         * Fix: Uninit. variable in lttng view
 145         * Add already enabled UST event error code
 146         * lttng.h API update: set filter becomes enable event with filter
 147         * Change the UST event hash table match function
 148         * Pass lttng_event struct to the set_filter API call
 149         * Adding context to an event is no longer possible
 150         * Add UST overlap tests
 151         * Add filter sequence number to UST
 152         * Fix: Typo from a previous patch in an assert()
 153         * Fix: Warn if session is running with lttng view
 154         * Fix: Add bash requirement to README for make check
 155         * Fix: add the notion of domain to lttng.1 man page
 156         * Enable additional kernel probes
 157         * Update CodingStyle
 158         * Use the new functions for default subbuf sizes
 159         * Add default subbuf sizes getter functions
 160         * Add max() and min() macro in common
 161
 162 2012-11-13 lttng-tools 2.1.0-rc7
 163         * Fix: Add pointer check when freeing poll events
 164         * Fix: FD leak on thread error
 165         * Fix: Wrong fd used by kernel_wait_quiescent
 166         * Support new lttng-ust error code
 167         * Fix: Don't set filter if enable event fails
 168         * Fix: Wrong data port when listing session
 169         * Fix: Enable event after start command
 170         * Fix: Teardown of thread_manage_clients on failure of listen/create_poll
 171         * Add a timeout to UST application socket
 172         * Fix: Consumerd error socket connect race
 173         * Fix: Set CLOEXEC flag on every created sockets
 174         * Remove consumer poll timeout in data thread
 175         * Fix: RCU hash table seed
 176         * Fix: Do not install health tests helper libraries
 177         * Fix: Create default channel on add-context if none
 178         * Support new liblttng-ust-ctl error code
 179         * Fix: Add EPIPE error handling on buffer splice
 180         * Fix: Channel creation error return code was not set
 181         * Fix: Wrong poll events on UST application socket
 182         * Fix: Remove dependency to urcu-cds in tools tests
 183         * Fix: Missing librt dependency in configure check for lttng-ust-ctl
 184         * Fix: Don't append datetime to default session name
 185         * Fix: Deny session creation name 'auto'
 186         * Fix: Add space for stream name CPU number
 187         * Fix: Add output option to enable-channel command
 188
 189 2012-11-02 lttng-tools 2.1.0-rc6
 190         * Tests: Add filtering tests for uncovered cases
 191         * Fix: Sync issue when deleting a data stream
 192         * Rename data_available to data_pending
 193         * Fix: consumer health state
 194         * Fix: Add the ACCOUNTING flag to ht creation and set bucket size to 0
 195         * Fix: Bad return error code handling
 196         * Fix: Use after free() of the rundir string
 197         * Fix: Cleanup UST app session on ustctl create session error
 198         * Fix: add missing pthread_join in sessiond
 199         * Fix: free running directory string
 200         * Fix: UST app clean list node usage
 201         * Add liblttng-ctl destructor to cleanup memory
 202         * Fix: Cleanup URIs on teardown
 203         * Fix: relayd memleaks
 204         * Fix: Memory leaks of allocated URIs
 205         * Fix: consumer output memory leak on creation
 206         * Fix: missing addrlen initialization before accept(2)
 207         * Fix: relayd trace file padding memleak
 208         * Fix: Remove useless consumer subdir string concatenation
 209         * Fix: lttng create allocated path memleak
 210         * Fix: Cppcheck memleakOnRealloc mistake
 211         * Fix: Synchronization issue for data available command
 212         * Fix: consumer relayd cleanup on disconnect
 213         * Fix: Handle the unary bitwise negation operator (~) in the XML printer
 214         * Fix: Possible memory leaks when creating filter IR root node
 215         * Fix: Delete stream on write error in consumer
 216         * Fix: Error handling when sending relayd sockets to consumer
 217         * Add stream lock comment for nesting
 218         * Fix: Mutex and RCU lock nesting in consumer
 219         * Fix: Uninitialized ret code
 220         * Fix: Remove bad condition and fix overflow issue
 221         * Fix: consumerd pthread error flow
 222         * Fix: Set a single return point and mutex unlock
 223         * Fix: Remove useless NULL and zero assignment
 224         * Fix: segfault on create session with two URLs
 225
 226 2012-10-22 lttng-tools 2.1.0-rc5
 227         * Fix: Remove network stream ID ABI calls
 228         * Tests: Add filtering tests
 229         * Wait for data availability when stopping a session
 230         * Relayd data available command support
 231         * Lib lttng-ctl data available command support
 232         * Consumer daemon data available command support
 233         * Add data structure for the data available command
 234         * Change the metadata hash table node
 235         * Make stream hash tables global to the consumer
 236         * Move add data stream to the data thread
 237         * Rename consumer threads and spawn them in daemon
 238         * Fix: relayd close stream command was not working
 239         * Fix: Relayd and consumerd socket leaks
 240         * Fix: Missing -ENODATA handling in the consumer
 241         * Fix: Empty metadata buffer(s) on HUP|ERR
 242         * ABI with support for compat 32/64 bits
 243         * Fix: Stream allocation and insertion consistency
 244         * Fix: output number of bytes written by relayd
 245         * Add hash table argument to helper functions
 246         * Fix: Add missing call rcu and read side lock
 247         * Tests: Fix LD_PRELOAD library lookup path for health tests
 248         * Fix: Add arbitrary wait period for kernel streaming test
 249         * Fix coding style and add/change debug statements
 250         * Fix: Build out of src tree
 251         * Tests: Add health check tests to configure
 252         * Tests: Add health check thread stall test
 253         * Tests: Add health check thread exit test
 254         * Tests: Add a health check utility program
 255         * Add testpoints in lttng-sessiond for each threads
 256         * New testpoint mechanism to instrument binaries for testing
 257         * Fix: off-by-one in comm proto between lttng-ctl and sessiond
 258         * Fix: Metadata stream leak when received in consumer
 259         * Fix: consumer_allocate_stream error handling
 260         * Fix: consumer should await for initial streams
 261         * Fix: Missing rcu read side lock in consumer
 262
 263 2012-09-26 lttng-tools 2.1.0-rc4
 264         * Fix: Change sempahore to pthread conditions
 265         * Fix: relayd relay_send_version: handle sscanf return code
 266         * Fix relayd: NULL ptr deref
 267         * Fix: relayd: possible NULL ptr deref, memory leak, accept fd leak
 268         * Tests: add print bytecode to filter grammar test
 269         * Cleanup: assign values to bytecode opcodes
 270         * Fix: Filter: Fix allocation length error
 271         * Fix: Filter: add missing ast free
 272         * Tests: Add high throughput with bandwidth limits test
 273         * Fix: Returned code when listing kernel channel
 274         * Tests: Rename helper functions to have consistent names
 275         * Tests: Cleanup redundant code and use printing helper functions
 276         * Tests: Add helper functions for printing status and banner
 277         * Tests: Add a check for color support when printing status
 278         * Fix: Lib lttng-ctl on error returns lttng code
 279         * Fix: lttng_set_event_filter() was returning bad error code
 280         * Fix: printing [no write] on lttng list -uf
 281         * Fix: Disable event on filter error with lttng
 282         * Fix: Wrong returned error code on UST enable event
 283         * Add consumer commands to lttng.1 man page
 284         * Add lttng_health_check(3) man page
 285         * Fix: Remove LPOLLNVAL from consumer metadata revents
 286         * Fix: Mismatch of field name between ust and tools
 287         * Add the written value when listing fields
 288         * Fix: Consumer return value check after mmap/splice
 289         * Don't send the subbuffer padding for streaming
 290         * Fix: Returned error code in consumer on read buffer
 291
 292 2012-09-12 lttng-tools 2.1.0-rc3
 293         * Fix: Relayd fix ret value when adding a connection
 294         * Add new thread in consumer for metadata handling
 295         * Fix: consumer recv command error path
 296         * Fix filter: fix recent regressions
 297         * Update lttng-ust-abi.h from upstream lttng-ust
 298         * Fix: Accept bytecode of length 65536 bytes
 299         * Fix: Generation of bytecode longer than 32768 bytes fails
 300         * Fix: Filter bytecode alloc buffer size must be a power of 2
 301         * Add lttng-ctl SWIG python bindings
 302         * Add C++ support to API header files
 303         * Librarify filter in liblttng-ctl and hide symbols
 304         * Set hidden visibility for calls used in lttng-ctl
 305         * Notify the user if a filter is already enabled
 306         * Install lttng-error.h and include it in lttng.h
 307         * Add lttng-error.h containing every API err. code
 308         * Fix: missing hostname context
 309
 310 2012-08-22 lttng-tools 2.1.0-rc2
 311         * Fix: put back 2.0 output text for lttng create cmd
 312         * Fix: remove set subdir call that uses bad ptr
 313         * Filter: Handle the unary bitwise not operator (~) with an unsupported
 314         * Fix: missing mutex unlock on register consumer err
 315         * Remove underscore from ifndef of lttng.h
 316         * Remove unused define in lttng.h
 317         * Standardize lttng command line usage text
 318         * Merge duplicate code in consumer for destroy relayd
 319         * Merge duplicate code in consumer for add relayd
 320         * Fix: Possible buffer overflows in strncat() usage
 321         * Move code out of main.c and fix some issues
 322
 323 2012-08-17 lttng-tools 2.1.0-rc1
 324         * Feature: Network Streaming
 325         * Add the lttng-relayd binary for network streaming
 326         * Support user space tracer filtering
 327         * Multiple fixes
 328
 329 2012-04-19 lttng-tools 2.0.1
 330         * Fix: test script for kernel module validation
 331         * Fix: report error to client on consumerd error
 332         * Fix: add missing ht_destroy at consumer teardown
 333         * Fix: consumer fd recv thread should write into non-blocking pipe
 334         * Fix: work-around glibc __nptl_setxid vs clone hang
 335         * Fix: consumer fd recv poll should be sensitive to POLLPRI too
 336         * Fix consumer lttng_consumer_poll_socket poll revents check bug
 337         * Fix: increase consumer open files limit
 338         * Update README: document dep on modprobe for kernel tracing
 339         * Fix: wait for sessiond to stop in tests
 340         * Fix: remove unused return variable
 341         * Don't report back error on syscalls fail for -a -k
 342         * Fix: destroy context hash table being NULL
 343         * Fix: make lttng expand path for trace output opt
 344         * Fix: return value signedness
 345         * Fix: man page environment variable name error
 346         * Fix: check return value on getenv USER
 347
 348 2012-03-20 lttng-tools 2.0.0
 349         * Fist STABLE version
 350         * Add version name: Annedd'ale
 351
 352 2012-03-20 lttng-tools 2.0.0-rc4
 353         * Fix: add small detail to enable-channel man page
 354         * Fix: warned of arbitrary time for ust-nprocesses test
 355         * Fix. add limitation to man page
 356         * Fix: minor changes to lttng.1
 357         * Fix: add exit values to lttng.1 man page
 358         * Fix: add delay before validating apps in test nproc
 359         * Fix: error handling in lttng enable-event
 360         * Fix: document structure init. to 0 in lttng.h
 361         * Fix: uninitialized variable
 362         * Keep track of FD used for UST applications (v2)
 363         * Fix: lttng view, error message and exit code
 364         * Small fixes to lttng man pages (v2)
 365         * Fix: handle EINTR for sendmsg syscall
 366         * Fix: lttng UI exit value and error message
 367         * Fix: session lock use after free
 368         * Fix kernel_list_events memleaks
 369         * Fix debug message use uninitialized variable
 370         * Fix: trace_ust_destroy_metadata should check for NULL pointer
 371         * Fix: various memleaks
 372         * Fix: hash table allocation out of order on error
 373         * fix: lttng_ht_destroy memleak
 374
 375 2012-03-16 lttng-tools 2.0.0-rc3
 376         * Fix: missing headers for make dist
 377         * Fix: install lttng-consumerd in lib/lttng/libexec/
 378         * Fix: Redefine MAP_STACK to 0 if not defined by the architecture
 379         * Fix: consumer CPU hotplug support
 380         * Fix: double PID registration race
 381         * Make libcompat independent not to confuse automake
 382         * Clarify the license of lttng-ust-abi.h
 383         * Fix: License header
 384         * Fix: wrong return value on consumer socket creation
 385         * Fix: test for UST invalid channel parameters at channel creation
 386         * Fix: recvmsg should handle EINTR
 387         * Fix: error.h non-static variables for liblttng-ctl
 388         * Fix: missing _GNU_SOURCE define
 389         * Fix: improve need root for kernel tracing error message
 390         * Fix: start/stop lttng message error
 391
 392 2012-03-02 lttng-tools 2.0.0-rc2
 393         * Fix: meaningful error message
 394         * Fix: UST consumer need to iterate on streams, just change their key
 395         * Fix: add missing rcu read lock across RCU HT iteration
 396         * Fix: kernel session closes fd 0 after create
 397         * Fix: sendmsg EPIPE should be quiet by default (expected)
 398         * Fix: thread_registration_apps should set its local sock to -1 when passing it
 399         * Fix: clock -> sock typo
 400         * Fix: consumer race: should allow reuse of FD key
 401         * Fix: Use PERROR all across lttng-tools, never make it quiet
 402         * Fix: test all close return values in sessiond
 403         * Fix: All perror turned into PERROR to show file and line number
 404         * Fix: large audit of close() use in sessiond main.c
 405         * Fix: main.c client/apps sockets and kernel_trace_fd close(0)
 406         * Fix: incorrect close of fd 0 for syscall kernel event destroy
 407         * Fix: sessiond has incorrect missing 0 value in FD check
 408         * Fix: sessiond app listening: use posix-compliant poll flags
 409         * Fix: consumer printf type should match ssize_t (%zd)
 410         * Fix: make ust consumer posix compliant for poll flags
 411         * Fix security permission on lttng run directory
 412         * Fix: Display right loglevel_type in error message
 413         * Fix documentation in lttng.h
 414         * Fix: lttng UST and kernel consumer: fix ret vs errno mixup
 415         * Fix: restart consumerd and sessiond when interrupted in poll()
 416         * Fix: handling bad channel when sending to consumer
 417         * Fix useless variable
 418         * Fix add-context returned error
 419         * fix: add missing break in command handling
 420         * fix: command handling: do not check domain for commands not requiring domain
 421         * fix: if tracing group does not exist, do not report a client error
 422         * Fix: run_as error handling
 423         * Fix usage note on -a
 424         * Revert FreeBSD compatibility layer
 425         * Fix: documented number of subbuffers is incorrect
 426         * Document that num-subbuf and subbuf-size need to be power of 2
 427         * Merge branch 'master' of git://git.lttng.org/lttng-tools
 428
 429 2012-02-20 lttng-tools 2.0.0-rc1
 430         * Fix lttcomm_close_unix_sock to actually close the socket
 431         * lttng-sessiond: Set group permissions explicitly
 432
 433 2012-02-16 lttng-tools 2.0-pre23
 434         * configure.ac: Fix consumerd64-libdir typo
 435         * Fix existing session daemon check
 436         * Fix missing session locks
 437         * Fix return value on ust app session create
 438         * Fix double start/stop trace
 439         * Fix ust app session started state on start trace
 440         * modprobe statedump, signal and timer lttng module
 441         * Fix hyphens in man pages
 442
 443 2012-02-14 lttng-tools 2.0-pre22
 444         * Add the bash-completion file to the dist tarball
 445         * Add the LICENSE file too
 446         * Package used for the Ubuntu LTS (feature freeze)
 447
 448 2012-02-13 lttng-tools 2.0-pre21
 449         * Fix licensing for hashtable/utils.c
 450         * Print loglevel value in list -u
 451         * Remove "<all> from MSG() when no loglevel is selected
 452         * Initial import of man lttng.1 and lttng-sessiond.8
 453         * Fix memory leak  master
 454
 455 2012-02-09 lttng-tools 2.0-pre20
 456         * New lttng view command
 457         * Multiple loglevel fixes
 458         * Fix list command
 459         * Fix session syscall listing
 460         * Multiple fixes across the code base
 461
 462 2012-02-02 lttng-tools 2.0-pre19
 463         * Update lttng ust ABI/API copy
 464         * Implement UST calibrate and change default
 465         * Add MSG_WAITALL to recvmsg of sessiond-comm
 466         * Check kernel version for tests
 467         * Add a '--list-options' option to each command.
 468         * First import of extras/ with lttng bash completion
 469         * Remove default defines from lttng.h
 470         * Fix lttng sessiond spawn wait race
 471         * Add CMD_WARNING error code
 472         * Fix context mapping for UST and kernel
 473         * Add kernel work-around for boot_id
 474         * Rewrites lttng-ctl's set_session_daemon_path
 475         * Fix memory lean in all lttng cli commands
 476         * Update loglevel ABI
 477         * Add padding to all ABIs for future development.
 478         * Improve error handling of lttng cli
 479         * Multiple fixes across the code base (nothing critical)
 480
 481 2012-01-23 lttng-tools 2.0-pre18
 482         * Complete change of the source directory tree
 483         * Move compat to common and create an internal lib
 484         * Rename lttngerr.h to error.h
 485         * Add kernel module version validation
 486         * Add UST version validation
 487         * Change SIGCHLD to SIGUSR1 when lttng waiting on sessiond
 488         * Fix off-by-one and double list size instead of steady increment
 489
 490 2012-01-19 lttng-tools 2.0-pre17
 491         * Add and support the new hash table library
 492         * Add lttng hash table support to liblttng-consumer
 493         * RCU support for consumer's hash tables
 494         * UST consumer close shm fd after mapping it
 495         * Remove CLONE_VM flag for runas making gdb debugging impossible
 496         * Make MSG() print on stdout instead of stderr
 497         * Don't init kernel tracer if not root (UID=0)
 498         * Multiple fixes found when reaching max. number of open files
 499         * Add some UST tests
 500         * Multiple segfaults and assert error fixed
 501
 502 2011-12-23 lttng-tools 2.0-pre16
 503         * Per-user lttng-sessiond now fully functionnal
 504         * Fix nested double usage of hashtable iterators
 505         * Support creds passing between lttng and sessiond
 506         * Rename sessiond internal "uid" fields to "id"
 507         * Create all trace directories and files with client user credentials
 508         * Create output directory at session creation command
 509         * Only allow the user or group owning the session (or root) to control a session
 510         * Add disable kernel tracing option to sessiond
 511
 512 2011-12-13 lttng-tools 2.0-pre15
 513         * (MAJOR) User-space tracing support for global domain (lttng-ust 2.0)
 514         * UST consumer 32/64 bit support
 515         * Multiple bug fixes
 516         * Multiple segfault, race and double lock fixes
 517         * API change for lttng_list_domains, lttng_start/stop and lttng_destroy
 518         * UST loglevel support
 519         * ABIs now support 256 char event names
 520         * Dependency on libpopt >= 1.13
 521         * Dependency on URCU >= 0.6.7
 522         * Rename kernel-ctl.c/.h to kernel.c/.h
 523         * Change malloc to zmalloc in lttng-sessiond code
 524         * RCU hashtable support for all UST data structure
 525         * New libconsumer for UST, kernel and one generic
 526         * Change "--all" option from lttng command line
 527         * Remove function entry option to discourage its use
 528
 529 2011-09-30 lttng-tools 2.0-pre14
 530         * Syscall tracing support
 531         * Multiple bug fixes (nothing critical)
 532         * Add userspace RCU hash table to tree for dev
 533         * Update UST ABI
 534         * Fix epoll that did not handle EINTR
 535         * Liburcu >= 0.6.5 is needed from this release
 536         * Enabling all events also enable syscall tracing
 537         * Debug messages are now on stderr
 538         * Add basic data structure for UST support but not ready yet.
 539
 540 2011-08-25 lttng-tools 2.0-pre13
 541         * Memory leaks fixes and double lock list
 542         * Add UST registration with sychronisation
 543         * Use poll/epoll compatibility layer for the sessiond
 544         * Major code cleanup of ltt-sessiond/main.c
 545         * Increase listen() connexion limit
 546         * Fix bad enable-channel command
 547         * Rename trace.c/.h to trace-kernel
 548         * Multiple fixes on the poll management with the new epoll API
 549
 550 2011-08-25 lttng-tools 2.0-pre12
 551         * Multiple fixes
 552         * Fix kconsumerd handling custom channel output
 553         * Add lttng_register_consumer to register a custom consumer
 554         * Add multiples tests of the session daemon
 555         * Default kernel channel size/number changed
 556         * Support for UST application registration
 557         * Import LTTng UST 2.0 ABI
 558         * Send data to kconsumerd before tracing start
 559         * Export API of lib kernel consumer (liblttngkconsumerd)
 560
 561 2011-08-12 lttng-tools 2.0-pre11
 562         * New lttng API using the lttng_handle
 563         * Multiple fixes of kernel consumer
 564         * Register the consuming function and add a library context
 565         * Kernel consumer fix mmap/munmap
 566         * lttng-sessiond-comm header has been privatize
 567         * Kernel traces are written in the kernel/ directory
 568         * Add underscore to enable-channel command options
 569
 570 2011-07-29 lttng-tools 2.0-pre6
 571         * Fix enable multiple events
 572         * Add function entry feature
 573
 574 2011-07-28 lttng-tools 2.0-pre5
 575         * Fix Add context command
 576         * Fix auto session path creation
 577         * Fix bad strncmp at channel creation
 578
 579 2011-07-23 lttng-tools 2.0-pre4
 580         * Fix kprobe attributes
 581         * Fix channel creation when not found at event enable
 582         * Add safe list iteration
 583         * Add two tests into the git tree
 584         * Kernel consumer can be put in debug mode with -vv
 585         * Trace path is now created on the client side
 586
 587 2011-07-23 lttng-tools 2.0-pre3
 588         * Fix perf hw cache counter config values
 589
 590 2011-07-22 lttng-tools 2.0-pre2
 591         * Multiple fixes
 592         * New add-context options for perf counter and context
 593         * Using the install bin path from autotool for execl() call
 594         * Update quickstart guide
 595
 596 2011-07-20 lttng-tools 2.0-pre1
 597         * First prerelease of lttng-tools.
 598         * Working with the LTTng v2.0-pre1 modules and Babeltrace v0.1