ChangeLog

   1 2020-02-25 (National Chocolate Covered Nut Day) LTTng modules 2.12.0-rc2
   2         * Fix: lttng-events.c: variable may be used uninitialized
   3         * Fix: rcu: Fix data-race due to atomic_t copy-by-value (5.5.6, 5.4.22)
   4         * fix: workqueue: add worker function to workqueue_execute_end tracepoint (v5.6)
   5         * fix: media: v4l2: abstract timeval handling in v4l2_buffer (v5.6)
   6         * fix: rcu: Remove kfree_rcu() special casing and lazy-callback (v5.6)
   7         * fix: rcu: Fix data-race due to atomic_t copy-by-value (v5.6)
   8         * fix: btrfs: make btrfs_ordered_extent naming consistent (v5.6)
   9         * fix: KVM: x86: Use gpa_t for cr2/gpa to fix TDP support on 32-bit (v5.6)
  10         * fix: proc: decouple proc from VFS with "struct proc_ops" (v5.6)
  11         * fix: y2038: hide timeval/timespec/itimerval/itimerspec types (v5.6)
  12         * fix: use timespec64 on kernels that have it
  13         * fix: move lttng_close_on_exec to proper wrapper
  14         * fix: 'struct timex' removed upstream (v5.6)
  15         * Fix: statedump: consistently check task_cred_xxx() return value for NULL
  16         * Fix: statedump: check task_active_pid_ns return value for NULL
  17         * sched: Make the sched_switch task state an enum
  18         * block: Make the rwbs field as a bit field enum
  19
  20 2020-02-05 (National Weatherperson's Day) LTTng modules 2.12.0-rc1
  21         * Fix: lttng-syscalls.c: marking wrong syscall probe as unregistered
  22         * Version 2.12.0-pre
  23         * Bump LTTNG_MODULES_ABI_MINOR_VERSION to 5
  24         * fix: use user ns wrapper code in new id trackers
  25         * fix: function prototype in wrapper/mm.h
  26         * ID tracker: implement vpid/uid/vuid/gid/vgid trackers
  27         * lttng-abi: Document ioctl numbers reserved by lttng-abi-old.h
  28         * lttng-clear: stop tracing required
  29         * sunrpc: introduce lttng_get_clid helper
  30         * Fix: sunrpc: use signed integer for client id
  31         * Fix: sunrpc: null rpc_clnt dereference in rpc_task_queued tracepoint
  32         * Fix: SUNRPC: Fix oops when trace sunrpc_task events in nfs client
  33         * fix: ext4: Reserve revoke credits for freed blocks (v5.5)
  34         * fix: btrfs: tracepoints: constify all pointers (v5.5)
  35         * fix: btrfs block group struct refactor (v5.5)
  36         * fix: y2038: itimer: change implementation to timespec64 (v5.5)
  37         * Update .gitignore from upstream
  38         * Add missing include for kernels between 3.8 and 3.15
  39         * Fix: LTTNG_KERNEL_ADD_CALLSITE: Handle unknown event type
  40         * net: Add entry/exit tracepoints for all receive paths
  41         * statedump: Add thread ID (tid) to interrupt
  42         * metadata: Add the product uuid to the 'env' section
  43         * Cleanup: statedump process state event pid namespace fields
  44         * Add namespaces statedump
  45         * Add uid/gid contexts
  46         * Add namespace contexts
  47         * README.md: Document LTTNG_TRACEPOINT_EVENT
  48         * README.md: cleanup formatting for bullet lists
  49         * Fix: btrfs: move basic block_group definitions to their own header (v5.4)
  50         * Cleanup: Silence gcc fall-through warning
  51         * Fix: update sched prev_state instrumentation for upstream kernel
  52         * Fix: gcc-9.1 stack frame size warning
  53         * Implement ring buffer clear
  54         * Make bitfield.h C++-friendly
  55         * Introduce LTTNG_KERNEL_SESSION_SET_CREATION_TIME
  56         * Add metadata env fields
  57         * Introduce LTTNG_KERNEL_SESSION_SET_NAME
  58         * Fix: do not use diagnostic pragma when GCC version is lower than 4.6.0
  59         * Fix: missing define when not building with gcc
  60         * Fix: lttng-tracepoint module notifier should return NOTIFY_OK
  61         * Fix: Don't print ring-buffer's records count when it is not used
  62         * Fix: do not set quiescent state on channel destroy
  63         * Fix: ring_buffer_frontend.c: init read timer with uninitialized flags
  64         * Introduce callstack stackwalk implementation header
  65         * Prepare callstack common code for stackwalk
  66         * Introduce callstack legacy implementation header
  67         * fix: random: only read from /dev/random after its pool has received 128 bits (v5.2)
  68         * fix: mm: move recent_rotated pages calculation to shrink_inactive_list() (v5.2)
  69         * fix: mm/vmscan: simplify trace_reclaim_flags and trace_shrink_flags (v5.2)
  70         * fix: mm/vmscan: drop may_writepage and classzone_idx from direct reclaim begin template (v5.2)
  71         * fix: timer/trace: Improve timer tracing (v5.2)
  72         * Cleanup: bitfields: streamline use of underscores
  73         * Silence compiler "always false comparison" warning
  74         * Fix: bitfield: shift undefined/implementation defined behaviors
  75         * Fix: timestamp_end field should include all events within sub-buffer
  76         * Fix: Remove start and number from syscall_get_arguments() args (v5.1)
  77         * lttng abi documentation: clarify getter usage requirements
  78         * Fix: don't access packet header for stream_id and stream_instance_id getters
  79         * Fix: atomic_long_add_unless() returns a boolean
  80         * Fix: Revert "KVM: MMU: show mmu_valid_gen..." (v5.1)
  81         * Fix: pipe: stop using ->can_merge (v5.1)
  82         * Fix: rcu: Remove wrapper definitions for obsolete RCU... (v5.1)
  83         * Fix: mm: create the new vm_fault_t type (v5.1)
  84         * Fix: extra-version-git.sh redirect stderr to /dev/null
  85         * Move timekeeping blacklisting to a header file
  86         * Blacklist: kprobe for arm
  87         * Cleanup: tp mempool: Remove logically dead code
  88         * Fix: btrfs: Remove fsid/metadata_fsid fields from btrfs_info
  89         * Fix: SUNRPC: Simplify defining common RPC trace events (v5.0)
  90         * Fix: Replace pointer values with task->tk_pid and rpc_clnt->cl_clid
  91         * Fix: Remove 'type' argument from access_ok() function (v5.0)
  92         * Fix: timer instrumentation for RHEL 7.6
  93         * Add missing SPDX license identifiers to uprobes
  94         * Drop support for kernels < 3.0 from Makefiles
  95         * Drop support for kernels < 3.0 from writeback instrumentation
  96         * Drop support for kernels < 3.0 from workqueue instrumentation
  97         * Drop support for kernels < 3.0 from skb instrumentation
  98         * Drop support for kernels < 3.0 from scsi instrumentation
  99         * Drop support for kernels < 3.0 from sched instrumentation
 100         * Drop support for kernels < 3.0 from power instrumentation
 101         * Drop support for kernels < 3.0 from net instrumentation
 102         * Drop support for kernels < 3.0 from module instrumentation
 103         * Drop support for kernels < 3.0 from mm_vmscan instrumentation
 104         * Drop support for kernels < 3.0 from lock instrumentation
 105         * Drop support for kernels < 3.0 from kvm instrumentation
 106         * Drop support for kernels < 3.0 from kmem instrumentation
 107         * Drop support for kernels < 3.0 from jbd2 instrumentation
 108         * Drop support for kernels < 3.0 from irq instrumentation
 109         * Drop support for kernels < 3.0 from ext4 instrumentation
 110         * Drop support for kernels < 3.0 from block instrumentation
 111         * Drop support for kernels < 3.0 from lttng-statedump-impl.c
 112         * Drop support for kernels < 3.0 from lttng-kernel-version.h
 113         * Drop support for kernels < 3.0 from lttng-events.h
 114         * Drop support for kernels < 3.0 from lib
 115         * Drop spinlock.h wrapper
 116         * Drop kstrtox.h wrapper
 117         * Drop uuid.h wrapper
 118         * Drop vzalloc.h wrapper
 119         * Drop support for kernels < 3.0 from tracepoint.h wrapper
 120         * Drop support for kernels < 3.0 from perf.h wrapper
 121         * Drop support for kernels < 3.0 from atomic.h wrapper
 122         * Drop compat patches for kernels < 2.6.36
 123         * Bump minimum kernel version to 3.0
 124         * Fix: ext4: adjust reserved cluster count when removing extents (v4.20)
 125         * Fix: signal: Remove SEND_SIG_FORCED (v4.20)
 126         * Fix: signal: Distinguish between kernel_siginfo and siginfo (v4.20)
 127         * statedump cpu topology: introduce LTTNG_HAVE_STATEDUMP_CPU_TOPOLOGY
 128         * CPU topology statedump on x86
 129         * Fix: update kvm instrumentation for SLES12 SP2 LTSS >= 4.4.121-92.92
 130         * Fix: Add missing const to lttng_tracepoint_ptr_deref prototype
 131         * Fix: adapt to kernel relative references
 132         * Fix: sync event enablers before choosing header type
 133         * Fix: implicit declarations caused by buffer size checks.
 134         * Prevent allocation of buffers if exceeding available memory
 135         * Fix: btrfs instrumentation namespacing
 136         * Fix: Convert rcu tracepointis to gp_seq (v4.19)
 137         * Fix: tracing: Centralize preemptirq tracepoints (4.19)
 138         * Fix: net: expose sk wmem in sock_exceed_buf_limit tracepoint (4.19)
 139         * Fix: access migrate_disable field directly
 140         * Fix: out of memory error handling
 141         * Fix: uprobes: missing break in lttng_event_ioctl()
 142         * Fix: ACCESS_ONCE was removed in 4.15, use READ_ONCE instead
 143         * Fix: instruction pointer has different names across arch
 144         * Fix: build failures when CONFIG_UPROBES is absent
 145         * uprobe: Support multiple call sites for the same uprobe event
 146         * uprobe: Receive file descriptor from session instead of path to file
 147         * uprobe: Mark uprobe event as registered
 148         * Add uprobes support
 149         * Fix: adjust SLE version ranges to build with SP2 and SP3
 150         * Fix: Allow alphanumeric characters in SLE version
 151         * Fix: Adjust range for SuSE 4.4.103-92 kernels
 152         * Cleanup: move to kernel style SPDX license identifiers
 153         * Cleanup: move scripts to subdirectory
 154         * Cleanup: modinfo keys
 155         * Add extra version information framework
 156         * Revert "Add btrfs file item tracepoints"
 157         * Fix: btrfs: Remove unnecessary fs_info parameter
 158         * Fix: btrfs: use fs_info for btrfs_handle_em_exist tracepoint
 159         * Fix: asoc: Remove snd_soc_cache_sync() implementation
 160         * Fix: asoc: fix printing jack name
 161         * Fix: asoc: Consolidate path trace events
 162         * Fix: ASoC level IO tracing removed upstream
 163         * Enable userspace callstack contexts only on x86
 164         * Prevent re-entrancy in callstack-user context
 165         * Callstack context: bump number of entries to 128
 166         * Fix: callstack context alignment calculation
 167         * Cleanup callstack context
 168         * Fix callstack context: write empty sequence if no stack trace
 169         * Fix: callstack context: false-sharing, bad memory size allocation
 170         * callstack context: use delimiter when stack is incomplete
 171         * Cleanup callstack context
 172         * Add kernel and user callstack contexts
 173         * Assign CPU id before saving the context size
 174         * Define max nesting count constant
 175         * Compute variable sized context length
 176         * Pass arguments for context size computation
 177         * Add 9p probe
 178         * Update delayed ref tracepoints for v3.12
 179         * Add btrfs file item tracepoints
 180         * Add btrfs tracepoint for em's EEXIST case
 181         * Fix: dyntick field added to trace_rcu_dyntick in v4.16
 182         * Fix: BUILD_BUG_ON with compile time constant on < v2.6.38
 183         * Fix: lttng filter validator ERANGE error handling
 184         * Fix: filter interpreter: use LTTNG_SIZE_MAX
 185         * Filter: add FILTER_OP_RETURN_S64 instruction
 186         * Perform bitwise ops on unsigned types
 187         * Filter: catch shift undefined behavior
 188         * Filter: add lshift, rshift, bit not ops
 189         * Filter: index array, sequences, implement bitwise binary operators
 190         * Fix: pid tracker should track "pgid" for noargs probes
 191         * lttng-tp-mempool: perform node-local allocation
 192         * Fix: update RCU instrumentation for 4.17
 193         * Fix: sunrpc instrumentation for 4.17
 194         * Fix: use struct reclaim_stat in mm_vmscan_lru_shrink_inactive for 4.17
 195         * Fix: Add gfp_flags arg to mm_vmscan_kswapd_wake for 4.17
 196         * Update: kvm instrumentation for ubuntu 4.13.0-38
 197         * Fix: update kvm instrumentation for Ubuntu 3.13.0-144
 198         * Fix: btrfs instrumentation namespacing
 199         * Cleanup: comment about CONFIG_HOTPLUG_CPU ifdef
 200         * Fix: do not use CONFIG_HOTPLUG_CPU for the new hotplug API
 201         * Fix: update kvm instrumentation for 4.1.50+
 202         * Use the memory pool instead of kmalloc
 203         * Create a memory pool for temporary tracepoint probes storage
 204         * Fix: use proper pid_ns in the process statedump
 205         * Fix: add variable quoting to shell scripts
 206         * Update: kvm instrumentation for fedora 4.14.13-300
 207         * Fix: Add Fedora version macros
 208         * Add preemptirq instrumentation
 209         * Clean-up: fix stale #endif comments
 210         * Command to dump the metadata cache again
 211         * Add a new /dev/lttng-logger interface
 212         * Fix: update btrfs instrumentation for SuSE 4.4.114-92
 213         * Fix: update block instrumentation for SuSE 4.4.114-92
 214         * Fix: update rcu instrumentation for v4.16
 215         * Fix: update vmscan instrumentation for v4.16
 216         * Fix: update timer instrumentation on 4.16 and 4.14-rt
 217         * Update kvm instrumentation for debian kernel 4.14.0-3
 218         * Fix: network instrumentation protocol enum
 219         * Fix: update btrfs instrumentation for SuSE 4.4.103-6
 220         * Fix: update block instrumentation for SuSE 4.4.73-5
 221         * Fix: global_dirty_limit for kernel v4.2 and up
 222         * Fix: network instrumentation handling of corrupted TCP headers
 223         * Fix: add missing uaccess.h include from kstrtox.h wrapper
 224         * Update: kvm instrumentation for 4.14.14+, 4.9.77+, 4.4.112+
 225         * Fix: btrfs_delayed_ref_head was unwired since v3.12
 226         * Update kvm instrumentation for debian kernel 4.9.65-3
 227         * Fix: debian kernel version parsing
 228         * Fix: block instrumentation 4.14+ NULL pointer dereference
 229         * Update: kvm instrumentation for 3.16.52 and 3.2.97
 230         * Fix: kvm instrumentation for 4.15
 231         * Update sock instrumentation for 4.15
 232         * Update kvm instrumentation for 4.15
 233         * Fix: ACCESS_ONCE() removed in kernel 4.15
 234         * Fix: sched instrumentation on stable RT kernels
 235         * timer API transition for kernel 4.15
 236         * Fix: Don't nest get online cpus
 237         * Fix: lttng_channel_syscall_mask() bool use in bitfield
 238         * Fix: update kmem instrumentation for kernel 4.15
 239         * Fix: lttng_kvmalloc helper NULL pointer OOPS
 240
 241 2018-09-05 (Be Late for Something Day) LTTng modules 2.11.0-rc1
 242         * Fix: uprobes: missing break in lttng_event_ioctl()
 243         * Fix: ACCESS_ONCE was removed in 4.15, use READ_ONCE instead
 244         * Fix: instruction pointer has different names across arch
 245         * Fix: build failures when CONFIG_UPROBES is absent
 246         * uprobe: Support multiple call sites for the same uprobe event
 247         * uprobe: Receive file descriptor from session instead of path to file
 248         * uprobe: Mark uprobe event as registered
 249         * Add uprobes support
 250         * Fix: adjust SLE version ranges to build with SP2 and SP3
 251         * Fix: Allow alphanumeric characters in SLE version
 252         * Fix: Adjust range for SuSE 4.4.103-92 kernels
 253         * Cleanup: move to kernel style SPDX license identifiers
 254         * Cleanup: move scripts to subdirectory
 255         * Cleanup: modinfo keys
 256         * Add extra version information framework
 257         * Revert "Add btrfs file item tracepoints"
 258         * Fix: btrfs: Remove unnecessary fs_info parameter
 259         * Fix: btrfs: use fs_info for btrfs_handle_em_exist tracepoint
 260         * Fix: asoc: Remove snd_soc_cache_sync() implementation
 261         * Fix: asoc: fix printing jack name
 262         * Fix: asoc: Consolidate path trace events
 263         * Fix: ASoC level IO tracing removed upstream
 264         * Enable userspace callstack contexts only on x86
 265         * Prevent re-entrancy in callstack-user context
 266         * Callstack context: bump number of entries to 128
 267         * Fix: callstack context alignment calculation
 268         * Cleanup callstack context
 269         * Fix callstack context: write empty sequence if no stack trace
 270         * Fix: callstack context: false-sharing, bad memory size allocation
 271         * callstack context: use delimiter when stack is incomplete
 272         * Cleanup callstack context
 273         * Add kernel and user callstack contexts
 274         * Assign CPU id before saving the context size
 275         * Define max nesting count constant
 276         * Compute variable sized context length
 277         * Pass arguments for context size computation
 278         * Add 9p probe
 279         * Update delayed ref tracepoints for v3.12
 280         * Add btrfs file item tracepoints
 281         * Add btrfs tracepoint for em's EEXIST case
 282         * Fix: dyntick field added to trace_rcu_dyntick in v4.16
 283         * Fix: BUILD_BUG_ON with compile time constant on < v2.6.38
 284         * Fix: lttng filter validator ERANGE error handling
 285         * Fix: filter interpreter: use LTTNG_SIZE_MAX
 286         * Filter: add FILTER_OP_RETURN_S64 instruction
 287         * Perform bitwise ops on unsigned types
 288         * Filter: catch shift undefined behavior
 289         * Filter: add lshift, rshift, bit not ops
 290         * Filter: index array, sequences, implement bitwise binary operators
 291         * Fix: pid tracker should track "pgid" for noargs probes
 292         * lttng-tp-mempool: perform node-local allocation
 293         * Fix: update RCU instrumentation for 4.17
 294         * Fix: sunrpc instrumentation for 4.17
 295         * Fix: use struct reclaim_stat in mm_vmscan_lru_shrink_inactive for 4.17
 296         * Fix: Add gfp_flags arg to mm_vmscan_kswapd_wake for 4.17
 297         * Update: kvm instrumentation for ubuntu 4.13.0-38
 298         * Fix: update kvm instrumentation for Ubuntu 3.13.0-144
 299         * Fix: btrfs instrumentation namespacing
 300         * Cleanup: comment about CONFIG_HOTPLUG_CPU ifdef
 301         * Fix: do not use CONFIG_HOTPLUG_CPU for the new hotplug API
 302         * Fix: update kvm instrumentation for 4.1.50+
 303         * Use the memory pool instead of kmalloc
 304         * Create a memory pool for temporary tracepoint probes storage
 305         * Fix: use proper pid_ns in the process statedump
 306         * Fix: add variable quoting to shell scripts
 307         * Update: kvm instrumentation for fedora 4.14.13-300
 308         * Fix: Add Fedora version macros
 309         * Add preemptirq instrumentation
 310         * Clean-up: fix stale #endif comments
 311         * Command to dump the metadata cache again
 312         * Add a new /dev/lttng-logger interface
 313         * Fix: update btrfs instrumentation for SuSE 4.4.114-92
 314         * Fix: update block instrumentation for SuSE 4.4.114-92
 315         * Fix: update rcu instrumentation for v4.16
 316         * Fix: update vmscan instrumentation for v4.16
 317         * Fix: update timer instrumentation on 4.16 and 4.14-rt
 318         * Update kvm instrumentation for debian kernel 4.14.0-3
 319         * Fix: network instrumentation protocol enum
 320         * Fix: update btrfs instrumentation for SuSE 4.4.103-6
 321         * Fix: update block instrumentation for SuSE 4.4.73-5
 322         * Fix: global_dirty_limit for kernel v4.2 and up
 323         * Fix: network instrumentation handling of corrupted TCP headers
 324         * Fix: add missing uaccess.h include from kstrtox.h wrapper
 325         * Update: kvm instrumentation for 4.14.14+, 4.9.77+, 4.4.112+
 326         * Fix: btrfs_delayed_ref_head was unwired since v3.12
 327         * Update kvm instrumentation for debian kernel 4.9.65-3
 328         * Fix: debian kernel version parsing
 329         * Fix: block instrumentation 4.14+ NULL pointer dereference
 330         * Update: kvm instrumentation for 3.16.52 and 3.2.97
 331         * Fix: kvm instrumentation for 4.15
 332         * Update sock instrumentation for 4.15
 333         * Update kvm instrumentation for 4.15
 334         * Fix: ACCESS_ONCE() removed in kernel 4.15
 335         * Fix: sched instrumentation on stable RT kernels
 336         * timer API transition for kernel 4.15
 337         * Fix: Don't nest get online cpus
 338         * Fix: lttng_channel_syscall_mask() bool use in bitfield
 339         * Fix: update kmem instrumentation for kernel 4.15
 340         * Fix: lttng_kvmalloc helper NULL pointer OOPS
 341         * Update version to 2.11.0-pre
 342         * Fix: lttng-logger get_user_pages_fast error handling
 343         * Fix: update block instrumentation for 4.14 kernel
 344         * Revert "Fix: update block instrumentation for kernel 4.14"
 345         * Fix: version check error in btrfs instrumentation
 346         * Fix: update btrfs instrumentation for kernel 4.14
 347         * Fix: update writeback instrumentation for kernel 4.14
 348         * Fix: update block instrumentation for kernel 4.14
 349         * Fix: vmalloc wrapper on kernel < 2.6.38
 350         * Fix: vmalloc wrapper on kernel >= 4.12
 351         * Add kmalloc failover to vmalloc
 352         * Fix: mmap: caches aliased on virtual addresses
 353         * Fix: update ext4 instrumentation for kernel 4.13
 354         * Fix: Sleeping function called from invalid context
 355         * Fix: sched for v4.11.5-rt1
 356         * Make vim users life easier
 357         * Rename Makefile.ABI.workarounds to Kbuild.common
 358         * Fix: handle missing ftrace header on v4.12
 359         * Fix: pid tracker should track "pgid"
 360         * Cleanup: typo in lttng pid tracker
 361         * Fix: Build ftrace probe on kernels prior to 4.12
 362         * Fix: update ftrace probe for kernel 4.12
 363         * Fix: update block instrumentation for kernel 4.12
 364         * Calculate context length outside of retry loop
 365         * Fix: Add support for 4.9.27-rt18 kernel
 366         * Fix: update btrfs instrumentation for kernel 4.12
 367         * Fix: update ringbuffer for kernel 4.12
 368         * Fix: update sched instrumentation for kernel 4.12
 369         * Fix: ext3 was completely removed from the kernel in v4.3
 370         * Fix: NULL pointer dereference of THIS_MODULE with built-in modules
 371         * Fix: add "flush empty" ioctl for stream intersection
 372         * Revert "Fix: flush empty packets on snapshot channel"
 373         * Revert "Fix: don't perform extra flush on metadata channel"
 374
 375 2017-05-05 (International Tuba Day) LTTng modules 2.10.0-rc1
 376         * Fix: remove CONFIG_KALLSYMS_ALL warning on clean
 377         * Add RING_BUFFER_SNAPSHOT_SAMPLE_POSITIONS command
 378         * Fix: Always build vmscan probe
 379         * Cleanup: formatting in strutils_star_glob_match explanation
 380         * Fix: introduce LTTNG_SIZE_MAX for older kernels
 381         * Use SIZE_MAX instead of -1ULL for size_t parameter
 382         * filter: use SIZE_MAX for size_t
 383         * Fix: out of bound array access in filter code
 384         * Add support for star globbing patterns in event names
 385         * Filtering: add support for star-only globbing patterns
 386         * Add string utilities
 387         * lttng-abi.c: cleanup whitespaces
 388         * Fix: use of uninitialized ret value in lttng_abi_open_metadata_stream
 389         * Fix: kref changes for kernel 4.11
 390         * Fix: atomic_add_unless() returns true/false rather than prior value
 391         * Fix: timers cputime_t arguments replaced by ull in kernel 4.11
 392         * Fix: update scsi instrumentation for kernel 4.11
 393         * Fix: changes to the vm_op fault cb prototype in libringbuffer
 394         * Fix: update btrfs instrumentation for kernel 4.11
 395         * Fix: update mm_vmscan instrumentation for kernel 4.11
 396         * Fix: section mismatch warning caused by __exit annotation
 397         * socketpair: extend syscall socketpair tracing information
 398         * Remove events/mainline unused headers
 399         * update event README
 400         * Fix: nmi-safe clock on 32-bit systems
 401         * Fix: only include linux/cpuhotplug.h for kernels >= 4.10
 402         * Fix: 4.10 hotplug adaptation backward compat
 403         * Fix: 4.10 btrfs instrumentation update backward compat
 404         * Update btrfs instrumentation for 4.10 kernel
 405         * Adapt lttng-modules to Linux 4.10 cpu hotplug state machine
 406         * btrfs instrumentation: update to 4.10 kernel
 407         * timer instrumentation: adapt to ktime_t without union
 408         * Add load/unload messages to kernel log
 409         * Update version to 2.10.0-pre
 410         * Fix: asoc instrumentation for RHEL 7.3
 411         * Fix: SCSI instrumentation for SLES12 SP2
 412         * Add SUSE Linux Enterprise kernel version tests
 413         * Filter code relicensing to MIT license
 414         * Add task cpu in process statedump
 415         * Performance: add missing unlikely in reserve
 416         * Fix: preemptible and migratable context error handling
 417         * Fix: bump stable kernel version ranges for clock work-around
 418
 419 2016-10-07 (National Frappé Day) LTTng modules 2.9.0-rc1
 420         * Fix: i2c: support kernels < 3.15
 421         * Fix: show warning for broken clock work-around
 422         * Bump minor ABI version
 423         * Fix: work-around upstream Linux timekeeping bug
 424         * Add support for i2c tracepoints
 425         * Cleanup: makefile version checks with single "ge"
 426         * Performance: special-case NULL in lttng_strlen_user_inatomic
 427         * Fix: lttng_inline_memcpy does not take a __user argument
 428         * Performance: implement lttng_inline_memcpy
 429         * Performance: cache the backend pages pointer in context
 430         * Cleanup: libringbuffer: remove duplicate pointer chasing in slow paths
 431         * Performance: Only dereference commit index once
 432         * Performance: Mark channel and buffer event disabled check unlikely
 433         * Performance: Relax atomicity constraints for crash handling
 434         * Performance: mark ring buffer do_copy callers always inline
 435         * Performance: mark lib_ring_buffer_write always inline
 436         * Kconfig: select TRACEPOINTS when built-in
 437         * Performance: disable event counting by default
 438         * Fix: handle large number of pages or subbuffers per buffer
 439         * Fix: unregister cpu hotplug notifier on buffer alloc error
 440         * Fix: sa_family is of type unsigned short
 441         * Fix: check for sizeof sa_family to save sa_family in accept and connect
 442         * Fix: use printk_once() for wrapper warning messages
 443         * Fix: btrfs instrumentation for 4.8 kernel
 444         * Fix: update mm_vmscan instrumentation for kernel 4.8
 445         * Fix: napi instrumentation for 4.8 kernels
 446         * Fix: update block instrumentation to compile on 4.8 kernels
 447         * Cleanup: reuse code in accept() and accept4() instrumentation
 448         * Add x86-64 override for accept4 syscall
 449         * Fix: timer wrapper: support kernels >= 4.8
 450         * Performance: split check deliver fast/slow paths
 451         * Fix: x86-64 accept instrumentation
 452         * Fix: Add support for 4.6.4-rt8 kernel
 453         * Fix: update scsi instrumentation for 4.7+ kernels
 454         * Fix: Use fs_initcall instead of rootfs_initcall
 455         * Fix: Add kernel configuration for lttng clock plugin
 456         * Fix: the clock plugin must be initiated before first use of the clock
 457         * Fix: tests/Kbuild for older kernels
 458         * Cleanup: __dynamic_len_idx set but not used warning
 459         * Cleanup: coding style and comments of net.h
 460         * net: Add TCP header data to net_* tracepoints
 461         * net: Add IPv4/IPv6 header data to net_* tracepoints
 462         * Fix: endianness for the container type of enum
 463         * enumeration autoincrement: use if/else logic
 464         * Cleanup trailing whitespaces
 465         * lttng-test probe: test ctf_enum_auto()
 466         * Add ctf_enum_auto() for autoincrementing enumeration values
 467         * Implement session statedump command
 468         * Fix: annotate bytecode interpreter for kernel stack validator
 469         * Update version to 2.9.0-pre
 470         * Fix: ring buffer: honor switch parameter type in remote switch
 471         * Fix: only flush non-metadata channels
 472         * Fix: don't perform extra flush on metadata channel
 473         * select, poll and epoll_wait overrides on ARM 32-bit
 474         * Fix: flush empty packets on snapshot channel
 475         * Fix: do not generate packet at destroy after stop
 476         * Fix: compat ioctl for flush/get metadata version
 477         * Fix: ctf_string() should handle NULL pointers
 478         * Fix: portability: no arith on void pointer
 479         * Fix: add missing tests/Kbuild
 480         * Test clock override plugin
 481         * Fix: add modules target to base Makefile
 482         * Fix: make clean does not include dot-config
 483         * Fix: trigger build error if CONFIG_TRACEPOINTS is not set
 484         * Documentation: document that CONFIG_MODULES not required when builtin
 485         * Fix: add missing errno include in random wrapper
 486         * Fix: mm_page_alloc_extfrag instrumentation for kernel 3.16.35
 487         * Fix: copy_from_user size when limited allocation
 488         * Extract the payload of epoll_wait/epoll_pwait
 489         * Extract the payload for epoll_ctl
 490         * Extract the FDs and flags from poll and ppoll
 491         * Extract the FD sets in select and pselect6
 492         * Add ctf_integer_bitfield_type
 493         * Implement enumeration type
 494         * Implement custom field support
 495         * Implement variant type
 496         * Implement shadow stack for dynamic len
 497         * libringbuffer: implement event too big API
 498         * Implement structure, compound array/sequence types
 499         * Fix: integer endianness metadata generation
 500         * Fix: endianness of integers received by filter
 501         * Fix: writeback probe on RHEL >= 3.10.0-327.10.1
 502         * Fix: RHEL kernel 3.10.0-327.13.1 compat
 503         * Fix: ctf_user_integer should not trigger page fault
 504         * Fix: lib_ring_buffer_copy_from_user_inatomic error handling
 505         * Add comment describing ioctl number duplication
 506         * Fix: remove unused gfpflags.h from btrfs and compaction instrumentation
 507         * Fix: Remove dead code from filter interpreter
 508         * Fix: x86 kvm mmutrace instrumentation for kernel < 3.6
 509         * Fix: mm_vmscan instrumentation: remove unused gfpflags.h include
 510         * Fix: use of uninitialized ret value in lttng_abi_create_event
 511         * Fix: kmem instrumentation: remove unused gfpflags.h include
 512         * Fix: 4.6 kernel: use in_compat_syscall
 513         * Fix: use BUG_ON instead of accessing array subscript above array bounds
 514         * Fix: Add granularity to RHEL kernel version checks
 515
 516 2016-03-18 (Awkward Moments Day) LTTng modules 2.8.0-rc1
 517         * Bump minor tracer ABI version
 518         * Fix: build against out-of-tree kernel build
 519         * probes/Kbuild: remove upper level header path
 520         * Move leftover relative include paths to system paths
 521         * syscall instrumentation: use system headers
 522         * tracepoint event instrumentation: use system headers
 523         * Use system include path in wrappers
 524         * libs: use system include paths
 525         * Use system header paths in core implementation files
 526         * Use system include paths in root directory headers
 527         * Use system include paths in probes
 528         * Update gitignore
 529         * Use system include paths in lttng-types.h
 530         * Use system include paths in lttng-tracepoint-event-impl.h
 531         * Use system include path in probes/define_trace.h
 532         * Use system include paths in probes/lttng-tracepoint-event-impl.h
 533         * Rename probes/lttng-events.h to probes/lttng-tracepoint-event-impl.h
 534         * Add makefile directory to include path
 535         * Fix: event ctx get size should be after chan ctx
 536         * Fix: filter interpreter with userspace strings
 537         * Fix: rename kvm x86 TRACE_SYSTEM to avoid name clash
 538         * Fix: format address fields as hexadecimal
 539         * PowerPC-64 ABIv1: add build error if KALLSYMS_ALL is missing
 540         * Fix: system call instrumentation overrides
 541         * Fix: page_alloc wrapper incorrect parenthesis
 542         * Fix: system call tracing for arm-64 compat !CONFIG_UID16
 543         * Fix: add struct user_msghdr forward declaration for older kernels
 544         * Cleanup: Remove unused lttng-types module
 545         * Fix: add missing versions and init call for page_alloc wrapper
 546         * Fix: Define lttng-tracer metadata only once
 547         * Fix: Add CONFIG_LTTNG to modules_install target
 548         * Fix: Use kbuild env instead of a custom var KERNELDIR
 549         * Update clock offset comment
 550         * clock offset: print negative value in metadata
 551         * Fix: handle negative clock offset
 552         * Fix: sched instrumentation for 4.1-rt11
 553         * Add RT patch version macros
 554         * Expect filter context identifiers starting with $ctx.
 555         * ARM64: wire up compat system calls
 556         * Add support for arm64 syscalls
 557         * Fix: Ubuntu kernel range for block_rq_complete
 558         * Fix: Ubuntu kernel range for mm_page_alloc_extfrag
 559         * Fix: update vmscan instrumentation for kernel 4.5
 560         * Fix: check reference counts for overflow
 561         * Fix: RHEL 7.2 scsi instrumentation
 562         * Fix: RHEL 7.2 kvm instrumentation
 563         * Kconfig: describe both module and in-kernel compilation options
 564         * Add comments and indentation to Makefile
 565         * Add support for built-in kernel build
 566         * Rename sub makefiles to Kbuild
 567         * Cleanup sub makefiles
 568         * Make goals configurable with CONFIG_LTTNG
 569         * Fix: Use generic raw_irqs_disabled_flags
 570         * Fix: Use MAX_RT_PRIO offset in sched_wakeup_template
 571         * Fix: update sched instrumentation for kernel 4.4.0
 572         * Bump version number for development branch
 573         * Fix: interruptible context: reversed logic
 574         * Contexts for RT debugging
 575         * Fix: instrumentation: v4lv2 missing include
 576         * Fix: header size larger than 256 bytes
 577         * Instrument x86 page faults
 578         * Fix: irq_vectors TRACE_SYSTEM name
 579         * Instrument x86_irq_vectors
 580         * Fix: tracepoint listing misses last loaded probe
 581         * Fix: lttng trace-clock needs to disable preemption
 582         * Tracepoint event: add "TP_code_post()"
 583         * Implement array and sequence bitfields
 584         * Fix: kmem: add mm.h include
 585         * Add page frame number (pfn) to kmem page events
 586         * Use pfn rather than struct page in ring buffer array
 587         * Implement clock plugin support
 588         * Command to regenerate the metadata of a session
 589         * Fix: writeback instrumentation update for 4.3 Linux kernel
 590         * Fix: update sched wakeup instrumentation for 4.3 kernel
 591         * Fix: lttng-test build failure for kernels < 3.0
 592         * Use 3.18 syscall instrumentation for MIPS32
 593         * Update the MIPS32 syscall instrumentation to 3.18
 594         * Fix: Move pipe override to the arch specific pointers_override.h
 595         * Implement lttng test module
 596         * Cleanup: remove logically dead code
 597         * Fix: filter validator use after free
 598         * Fix: use after free in channel release
 599         * Fix: non-enabler events should be disabled by default
 600         * Fix: build failure on 2.6.36
 601         * Cleanup: split bdi_dirty_ratelimit with ifdef into separate macros
 602         * Fix: writeback instrumentation for 4.2 kernels
 603         * Fix: mm_page_alloc_extfrag instrumentation for kernel 3.18.10
 604         * Add stream instance id to the packet header
 605         * Add a packet sequence number
 606         * Fix: kmem probe with Ubuntu 3.13 kernels
 607         * Fix: disable kvm probe if lapic.h isn't found
 608         * Fix: timer instrumentation for 4.2 kernels
 609         * Fix: ext4 instrumentation for 4.2 kernels
 610         * Fix: kvm instrumentation for 4.2 kernels
 611         * Fix: allow LTTng to be built within kernel tree
 612
 613 2015-07-15 (Pet Fire Safety Day) LTTng modules 2.7.0-rc1
 614         * Fix: Building the event list fails on fragmented memory
 615         * Fix: use after free on metadata cache reallocation
 616         * Fix: version checks for kernel 4.0
 617         * Fix: Incorrect Ubuntu kernel patchlevel
 618         * Fix: cpu-id context should use int type
 619         * Implement cpu-id context
 620         * Implement cpu_id context for filtering
 621         * Fix: context printk mismatch on error
 622         * Cleanup: misleading comment about deferrable timer
 623         * Fix: arm-32 build
 624         * Fix: Update kmem event for Ubuntu's 3.16 kernel
 625         * Fix: RHEL 7.1 block instrumentation
 626         * Fix: add RHEL version macros
 627         * Fix: add missing parenthesis in ubuntu version check
 628         * Fix: remove regmap instrumentation for kernels < 4.1
 629         * Fix: Update kmem event for recent Ubuntu kernel
 630         * Fix: missing statedump end event when block device listing available
 631         * Fix: don't generate incorrect macros for debian/ubuntu version check
 632         * Revert "Fix: build against Ubuntu kernels"
 633         * Fix: build against Ubuntu kernels
 634         * Add namespace info in sched_fork and statedump
 635         * Fix: ext4 instrumentation: flags parameter did not exist prior to 3.11
 636         * Fix: printk instrumentation: remove "condition" tracepoints
 637         * Fix: regmap build against kernel 4.0 kernel headers
 638         * Add mmu_valid_gen field to mmutrace events
 639         * Fix: add missing x86 mmutrace kernel header include
 640         * Fix: x86 mmutrace event extra field for kernels >= 3.11
 641         * Fix: remove execute flag from kvm.h file
 642         * Fix: build x86 kvm probes on kernels >= 4.1-rc1
 643         * Fix: compilation on 4.1-rc1 kernel, remove unused WB_WORK_REASON
 644         * Fix: 4.1-rc1 Linux build and regmap instrumentation
 645         * Fix: don't clash with older Debian kernel versions
 646         * Fix: update get_pfnblock_flags_mask wrapper for debian kernels
 647         * Fix: discover Debian API
 648         * Fix: Update README.md to match reality: kernels >= 2.6.36 are supported
 649         * Fix: atomic.h wrapper for kernels < 2.6.37
 650         * Fix: disable x86 kvm instrumentation for kernels < 2.6.38
 651         * Fix: add missing types.h include for older kernels
 652         * Fix: add hlist lttng wrappers
 653         * Fix: add struct file_handle forward declaration
 654         * Fix: string length calculation reversed user vs kernel args
 655         * Fix: use lttng_rcu_dereference within lttng-syscalls.c
 656         * Fix: add lttng rcu wrapper to allow tracing RCU
 657         * Fix: double-unlock of session mutex
 658         * Fix: check that class and instance prototype match
 659         * Fix: lttng-events.h check function takes void
 660         * Fix: regmap instrumentation for Linux 3.19.4 and 4.0
 661         * Fix: kernels >= 2.6.33 put utsrelease.h in generated/
 662         * Fix: Include utsrelease.h in lttng-kernel-version.h
 663         * Fix: ext4 ext4_da_write_pages instrumentation for kernels < 3.11.0
 664         * Fix: old kernels need module.h included before vermagic.h
 665         * Fix: net instrumentation for kernels 2.6.39 and below
 666         * Fix: version condition in makefile
 667         * Implement wrapper around get_pfnblock_flags_mask
 668         * Be more restrictive in provider name check
 669         * Fix: net instrumentation namespacing
 670         * Fix: compaction instrumentation namespacing
 671         * Fix: Support 4.x kernel versions in Makefile
 672         * Fix: remove stale TP_STRUCT_entry from kvm instrumentation
 673         * Fix: add missing module.h include to lttng-probe-user.c
 674         * Fix: use lttng hlist wrapper in wildcard and filter
 675         * Fix: namespace asoc and kmem instrumentation
 676         * Fix: update instrumentation after wildcard rebase
 677         * Fix: lttng_abi_syscall_list does not need to be exported
 678         * Migrate ARM, powerpc, MIPS syscall instrumentation to TP_FIELDS
 679         * Remove now unused syscalls.h from lttng-modules
 680         * Filter: start with enabler "disabled"
 681         * Fix coverity warning about sizeof(void **) != sizeof(void *)
 682         * Fix length type and text sequence base
 683         * Fix: TP_FIELDS: add missing headers
 684         * Migrate syscall instrumentation to TP_FIELDS
 685         * Migrate tracepoint instrumentation to TP_FIELDS
 686         * Implement filtering infrastructure
 687         * syscall wildcards: apply syscall filtering
 688         * Implement syscall wildcard support
 689         * Implement tracepoint wildcard support
 690         * Namespace all tracepoints
 691         * Implement list.h wrapper for hlist in older kernels
 692         * Implement listing of pid tracker content
 693         * Implement PID tracking
 694         * Fix: mm_page_alloc_extfrag instrumentation for kernel 3.14.36
 695         * Fix: update writeback instrumentation for kernel 4.0+
 696         * Fix: compaction mm_compaction_isolate_template update for Linux 4.0+
 697         * Fix: kmem instrumentation update for mm_page_alloc_extfrag kernel 3.19.2+
 698         * Fix: kmem instrumentation: mm_page_alloc extfrag change_ownership field
 699         * Fix: missing parenthesis in offset_align_floor
 700         * Fix: implement time.h wrapper for FD_ISSET
 701         * Fix: update sched instrumentation for 3.19+ kernels
 702         * Fix: update rcu instrumentation for 3.19+ kernels
 703         * Fix: update scsi instrumentation for 3.19+ kernels
 704         * Fix: update module instrumentation for 3.19+ kernels
 705         * Fix: Add f_dentry wrapper for 3.19+ kernels
 706         * Fix: introduce lttng_get_unused_fd() wrapper for 3.19 kernels
 707         * Fix: lttng_this_cpu_ptr wrapper for kernel 3.19+
 708         * Fix: Update btrfs instrumentation for 3.18 Linux kernel
 709         * Fix compile error on kernel 3.0.101 with CONFIG_PERF_EVENTS
 710         * Conditional compilation introduced by lttng-modules commit
 711         * Fix: compaction instrumentation update for 3.14.x stable kernels
 712         * Fix: context alignment not properly handled
 713         * Fix compilation on Linux kernel >= 3.18.0
 714         * Fix: build for architectures without HAVE_SYSCALL_TRACEPOINTS
 715
 716 2014-10-20 LTTng modules 2.6.0-rc1
 717         * Expose lttng-modules ABI version ioctl
 718         * Fix: syscall list ioctl number conflict
 719         * lttng-modules: fix build for non-x86
 720         * Fix: syscall listing of session
 721         * Print build warning when writeback probe is disabled
 722         * Add atomic.h wrapper for before/after atomic
 723         * Fix compilation on Ubuntu 14.10
 724         * Fix: export name as text array in writeback
 725         * Cleanup: remove unused trace_clock_read32()
 726         * Use 3.17 ktime_get_mono_fast_ns() new API
 727         * Check for stale version.h files
 728         * Fix: compile lttng_statedump_process_ns on Ubuntu
 729         * Reverse version check logic in lttng_statedump_process_ns
 730         * Fix block_rq_complete TP on Ubuntu kernel
 731         * Introduce macros to check Ubuntu kernel version
 732         * Sync writeback tracepoints from mainline
 733         * Fix: redefinition of DEFINE_WRITEBACK_EVENT
 734         * Fix: hander negative get_syscall_nr return value
 735         * Fix: statedump: close_on_exec flag backward compat
 736         * Fix instrumentation of vmscan for older kernels
 737         * Fix: older kernels (3.2.x) don't undefine TRACE_SYSTEM
 738         * Fix: syscall listing: handle "enable all syscall"
 739         * Fix: don't allow disabling syscalls when none are enabled
 740         * Fix: syscall: fail disable all if all already disabled
 741         * Fix: syscall filtering: NULL pointer deref
 742         * Cleanup: list syscall without syscall_entry prefix
 743         * Fix: syscall_list_show NULL pointer deref
 744         * implement syscall mask getter
 745         * Cleanup: lttng-abi.h coding style
 746         * syscall listing: show syscall ID
 747         * Allow events with same name to be enabled for each channel
 748         * ABI: use enable a syscall ABI field name
 749         * Implement syscall listing
 750         * Fix: tracepoint list anonymous file name
 751         * Fix: syscall filtering: disable all syscalls
 752         * syscall tracing: input/output parameter handling for all arch
 753         * lttng-get-syscall-inout.sh depends on bash
 754         * Fix generate syscall header script: add missing escape char
 755         * syscall instrumentation: handle copy_from_user return value
 756         * Rename LTTng syscall instrumentation macros
 757         * Rename LTTng instrumentation macros
 758         * Extract input/output arguments from accept and connect syscalls
 759         * syscall: extract pipe and pipe2 output args
 760         * Remove sys_ prefix from syscall names
 761         * System call inout/output arg processing
 762         * Update syscall inout table
 763         * Add syscall inout table
 764         * Extract syscall exit ret value on x86 32/64
 765         * Extract system call exit return value
 766         * Syscall filtering: apply to syscall exit
 767         * System call filtering
 768         * asoc.h: fix build with v3.17 kernel
 769         * Fix: lttng-modules teardown NULL pointer OOPS
 770         * Fix: handle concurrent flush vs get_next_subbuf on metadata cache
 771         * Modernize README using Markdown
 772         * Fix: OOT lttng_logger tracepoint not visible with signed kernels
 773         * Add cscope to gitignore
 774         * Update kvm instrumentation: compile on 3.17-rc1
 775         * Update statedump to 3.17 nsproxy locking
 776         * Fix: noargs probes should calculate alignment and event length
 777         * Update compaction instrumentation to 3.16 kernel
 778         * Update vmscan instrumentation to 3.16 kernel
 779
 780 2014-07-16 (Take Your Poet to Work Day) LTTng modules 2.5.0
 781         * (no change)
 782
 783 2014-06-27 LTTng modules 2.5.0-rc2
 784         * Fix: statedump: check whether "files" is NULL, RCU semantic fix
 785         * Fix: statedump handle oom case, handle errors
 786         * Fix: correct typo in kernel version number
 787         * Fix: blktrace instrumentation for backported branches
 788         * Fix: statedump block devices OOPS
 789
 790 2014-05-28 (International Hamburger Day) LTTng modules 2.5.0-rc1
 791         * Add TID field to some block_* events
 792         * Fix: refuse overwrite mode buffers with less than two subbuffers
 793         * Fix: lttng modules system call generation script
 794         * Dump FD flags and mode on state dump
 795         * Fix: incorrect rwbs field type in block_bio_queue
 796         * Fix: blktrace instrumentation for v3.2.58+ stable branch
 797         * Fix: pass proper args when writing commit counter
 798         * Cleanup: lib ringbuffer: pagecpy has unsigned semantic
 799         * Fix: allow racy tracepoint string input from kernel and userspace
 800         * Statedump event for block devices
 801         * Fix: update v4l2 instrumentation to 3.15 kernel
 802         * Fix: ext4 update instrumentation to 3.15 kernel
 803         * Fix: update block instrumentation to 3.15 kernel
 804         * Fix: module instrumentation: update to 3.15 kernel
 805         * Adapt to 3.15 tracepoint API
 806         * Kernel 3.15 don't define map unmap for pipe
 807         * Fix: add missing module version in v4l2 probe
 808         * Add V4L2 instrumentation
 809         * Fix: rcu instrumentation: add const qualifier to char pointers
 810         * Fix: add missing module version information
 811         * Use kernel 3.13 syscall tables for MIPS32
 812         * Add MIPS32 syscalls extracted from a 3.13 kernel
 813         * Fix: block instrumentation: < 3.14 don't have bi_iter
 814         * Fix: update btrfs instrumentation to kernel 3.14
 815         * Fix: update block layer instrumentation to kernel 3.14
 816         * Fix: remove __exit annotation
 817         * Fix file permissions for lttng-statedump-impl.c
 818         * LTTng logger ABI
 819
 820 2014-02-28 (Public Sleeping Day) LTTng modules 2.4.0
 821         * Fix: load state dump even if work-around lookup fails
 822         * Cleanup: fix comment
 823         * Fix: correctly version kvm events to build against v3.0 kernel
 824         * Add extraversion (e.g. -rc4) to lttng-tracer modinfo
 825
 826 2014-02-14 LTTng modules 2.4.0-rc4
 827         * Fix: use after free in ring buffer clients
 828         * Fix: Add statedump exit so module is not permanent
 829         * Cleanup: move callback init to static initialization
 830         * Fix: OOT lttng-statedump tracepoints not visible with signed kernels
 831
 832 2014-01-29 LTTng modules 2.4.0-rc3
 833         * Fix: tracepoint event name mapping at unregister
 834         * Fix: tracepoint name remapping
 835         * Fix: enable event error path memory corruption
 836         * Update kvm instrumentation to Linux 3.13
 837         * Update sched instrumentation to Linux 3.13
 838         * Fix: provide more precise error report for enable event
 839         * Fix: quote event name in metadata
 840         * Add version info to lttng-tracer.ko modinfo
 841
 842 2013-12-10 LTTng modules 2.4.0-rc2
 843         * Fix: client_packet_header() uses wrong packet
 844         * Cleanup: fix typo in ring buffer backend comment
 845         * Fix: handle unknown event type parameter
 846         * Fix: eliminate timestamp overlap between packets
 847         * gcc blacklist: only apply when building with gcc
 848         * Blacklist ARM gcc 4.8.0, 4.8.1, 4.8.2
 849
 850 2013-11-15 LTTng modules 2.4.0-rc1
 851         * Update ext4 instrumentation to Linux 3.12
 852         * Update RCU instrumentation to Linux 3.12
 853         * Update btrfs instrumentation to 3.12 kernel
 854         * Update vmscan instrumentation to Linux 3.12
 855         * update: kmem instrumentation 3.12 kernel support
 856         * lttng-statedump-impl: Use generic hard irqs for Linux >= 3.12
 857         * lttng-statedump-impl: Fix lttng_list_interrupts for empty implementation
 858         * Import fix from LTSI: 3.4+ RT kernels use CONFIG_PREEMPT_RT_FULL
 859         * Add new tracepoint in KVM
 860         * Blacklist kernels 3.10.13 and 3.11.2
 861         * LTTng trace-clock: shrink kernel blacklist
 862         * Metadata flush writes data from the cache
 863         * Per-stream ioctl to get the current timestamp
 864         * LTTng ringbuffer ABI calls for index generation
 865         * Prepare LTTng override of ring buffer fops
 866         * Blacklist Linux kernels 3.10+
 867
 868 2013-09-03 LTTng modules 2.3.0
 869         * Fix: metadata stream should not reference session
 870         * Fix: btrfs: support 3.11 Linux kernel
 871         * statedump: remove KERN_DEBUG messages
 872         * Fix: ext4: add missing tracepoints for 3.11 kernel
 873         * Fix: ext4: Linux 3.11 support
 874         * Fix: ext3: 3.11 Linux support
 875         * Fix: statedump nsproxy 3.11 Linux support
 876
 877 2013-08-30 LTTng modules 2.3.0-rc2
 878         * Fix: metadata lttng channel refcount
 879         * README: lttng-modules incompatible with lttng 0.x patchset
 880
 881 2013-07-17 LTTng modules 2.3.0-rc1
 882         * Fix: kvm x86 probes side-effect
 883         * Fix: allow get/put subbuf in loop for metadata stream
 884         * Add support for kvm x86 specific tracepoints
 885         * Add mainline headers for kvm x86 tracepoints
 886         * Remove old 3.0.4 x86-64 extracted syscall info
 887         * Point the x86-64 overrides to newly extracted 3.10-rc7 files
 888         * Add syscalls extracted files from a 3.10-rc7 kernel
 889         * Improve documentation of the syscall extractor script
 890         * Fix: double length of __dynamic_len array
 891         * Fix printk instrumentation
 892         * Introduce __dynamic_array_enc_ext_2() and tp_memcpy_dyn_2()
 893         * Fix: ring buffer: get_subbuf() checks should be performed on "consumed" parameter
 894         * Fix: SWITCH_FLUSH new sub-buffer checks
 895         * Fix: ring buffer: handle concurrent update in nested buffer wrap around check
 896         * Cleanup: lib_ring_buffer_switch_new_end() only calls subbuffer_set_data_size()
 897         * Revert "Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()"
 898         * Fix: handle writes of length 0
 899         * Fix: ring buffer: RING_BUFFER_FLUSH ioctl buffer corruption
 900         * Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()
 901         * print warning and return -EBUSY on double get_subbuf()
 902         * Add header to fix compilation of syscalls-extractor on 3.9 kernel
 903         * Fix: don't do 0 byte event reservation
 904         * Document that payload size need to be greater than 0
 905         * Fix build and load against linux-2.6.33.x
 906         * Fix: add missing CONFIG_COMPAT around lib_ring_buffer_compat_ioctl
 907         * Metadata cache and multiple metadata channels
 908         * fix block instrumentation probe signature mismatch for 3.9.x kernels
 909         * fix: block instrumentation: NULL pointer dereference
 910         * Update rcu instrumentation to 3.9.[0-4]
 911         * Fix CPU hotplug section mismatches
 912         * Add system calls definitions for powerpc-32
 913         * Remove bashism in lttng-syscalls-generate-headers.sh
 914         * Update ARM (32 bit) syscall tracepoints to 3.4
 915
 916 2013-05-09 LTTng modules 2.2.0-rc2
 917         * Remove useless lttng_metadata probe
 918         * Fix: warning kvm_trace_exit_reason redefined for 3.9 kernel
 919         * Fix: 3.9.0 block layer instrumentation build
 920         * Revert "Stop build if CONFIG_TRACEPOINTS is not set"
 921         * Stop build if CONFIG_TRACEPOINTS is not set
 922         * Add comments to endifs.
 923         * Fix: remove ARM set_tls system call override
 924         * Cleanup: arm sys_mmap whitespace
 925         * Clean up using global_dirty_limit wrapper for writeback probe
 926
 927 2013-03-29 LTTng modules 2.2.0-rc1
 928         * Update README
 929         * Fix: vmscan instrumentation build
 930         * writeback instrumentation: remove duplicated structures
 931         * block: update instrumentation to 3.9 rc kernel
 932         * rcu: update to 3.9 rc kernel instrumentation
 933         * workqueue instrumentation: remove duplicated structures
 934         * Rename odd event names
 935         * Introduce API to remap event names exposed by LTTng
 936         * lttng-module: sched.h: Fix compilation on 3.9 kernel
 937         * Fix Linux 3.8 btrfs probe warning
 938         * Fix Linux 3.8 ext4 probe support
 939         * Fix 3.8 kernel support: namespace lttng_is_signed_type()
 940         * Fix: don't flush-final for offset 0 if reader is on sub-buffer
 941         * instrumentation sched: add missing fork pid info
 942         * Fix check in lttng_strlen_user_inatomic
 943         * instrumentation: sync with Linux commit a1ce392
 944         * Fix: statedump: missing locking, use lttng_iterate_fd
 945         * Implement lttng_iterate_fd wrapper
 946         * Instrumentation cleanup: kmem events should print hex pointers
 947         * Fix compilation of ext4 and btrfs tracepoints on 2.6.40 kernels
 948         * Fix: statedump hang/too early completion due to logic error
 949         * Fix: statedump hang due to incorrect wait/wakeup use
 950         * put_ulong calls in lib_ring_buffer_compat_ioctl() should be compat
 951         * wrapper/perf.h: Fix kernel version condition
 952         * Add new kernel probes instrumentation
 953         * Update kernel probes to more detailed match to kernel versions
 954         * Fix possible kernel build errors with linux-patches
 955         * Add missing MIT license text to 3 files under this license
 956         * Update sites using kernel version checking macro to new range
 957         * Make upper bound of kernel version checking macro exclusive
 958         * sock instrumentation: fix fields to get referenced values
 959         * ext3 instrumentation: fix of assignment code conversion
 960         * sched instrumentation: rename "pid" fields in sched_process_exec
 961         * Remove remaining semicolons in TP_fast_assign blocks
 962         * Fix compilation for 3.0 kernels that are named 2.6.40
 963         * Fix compilation for 3.0 branch (>= 3.0.39)
 964         * Add kernel version checking macro
 965         * Remove semicolons in TP_fast_assign blocks
 966         * Add ifdefs to net probe to support Linux 2.6.39
 967         * Add kernel probes for supplementary subsystems
 968         * Check if interrupt action name is not null in statedump
 969         * Fix exec instrumentation: only for kernels 3.4.0 and higher
 970         * Add TRACE_EVENT(sched_process_exec) to sched.h
 971         * lib/ringbuffer/frontend_api.h: Include linux/prefetch.h.
 972         * Fix warning with 3.6.0 kernel
 973         * ABI with support for compat 32/64 bits
 974         * Perform calculation on bit size in 64-bit
 975         * Use uint64_t for packet header content size and packet size
 976         * Fix: compat layer only on supported architectures
 977         * Fix ring buffer 32/64 bits compat
 978         * Fix cleanup: move lttng-tracer-core.h include to lib ringbuffer config.h
 979         * Fix ring_buffer_frontend.c: missing include lttng-tracer-core.h
 980         * Fix: statedump missing check for NULL namespace
 981
 982 2012-09-10 LTTng modules 2.1.0-rc1
 983         * fix timestamps on architectures without CONFIG_KTIME_SCALAR
 984         * Support for linux kernels 2.6.32 through 2.6.37
 985         * Document limitation of vppid and ppid context wrt eventual RCU instrumentation
 986         * Cleanup: no need to hold RCU read-side lock when reading current nsproxy
 987         * Add env hostname information
 988         * Fix: lttng_statedump_process_state for each PID NS has infinite loop
 989         * lttng_statedump_process_state for each PID NS
 990         * Support the hostname context
 991         * Fix: statedump namespaced pid, tid and ppid
 992         * Fix: statedump: disable vm maps enumeration
 993         * Fix: ensure userspace accesses are done with _inatomic
 994         * Fix: vppid context should test for current nsproxy
 995         * Add MIPS system call support
 996         * Change mode of lttng-syscalls-generate-headers.sh to 755
 997         * cleanup: fix typo in syscall instrumentation header
 998         * Cleanup: remove trailing whitespace in README
 999         * trace event: introduce TP_MODULE_NOAUTOLOAD and TP_MODULE_NOINIT
1000         * LTTng: probe-statedump: add #include <linux/sched.h>
1001         * fix: signal_generate event should print utf8 for comm field
1002         * Makes write operation a parameter for tp_memcpy macro
1003         * Add coding style document
1004         * Update instrumentation/events README file
1005         * Add makefile target for preprocessor
1006         * Fix: free_event_id check should compare unsigned int with -1U
1007         * Use unsigned long type for events discarded counter
1008         * Fix: update signal instrumentation for 3.4 kernel
1009         * LTTng Modules ARM syscall instrumentation
1010         * Fix: generate header missing echo -e for escape chars
1011         * Fix: add missing uaccess.h include (for ARM)
1012         * README: Document that CONFIG_MODULES is required
1013         * Fix: README typo
1014         * Fix: document required and optional kernel config options in README
1015
1016 2012-03-29 LTTng modules 2.0.1
1017         * Fix: is_compat_task !CONFIG_COMPAT compile error on kernels >= 3.3
1018
1019 2012-03-20 LTTng modules 2.0.0
1020         * First STABLE version
1021         * Add version name
1022
1023 2012-03-20 LTTng modules 2.0.0-rc4
1024         * Update README and add version name place-holder
1025
1026 2012-03-16 LTTng modules 2.0.0-rc3
1027         * Fix clock offset 32-bit multiplication overflow
1028         * Fix : wrong assign of fd in state dump
1029         * License cleanup, ifdef namespace cleanup
1030         * Fix: ensure power of 2 check handles 64-bit size_t entirely
1031
1032 2012-03-02 LTTng modules 2.0.0-rc2
1033         * Fix: dmesg printout should not print metadata warnings
1034         * Fix: use transport name as channel name
1035         * Fix: Return -EINVAL instead of print warning if non power of 2 size/num_subbuf
1036
1037 2012-02-20 LTTng modules 2.0.0-rc1
1038         * Standardize version across toolchain
1039         * statedump: Use old macro name for kernel 2.6.38
1040
1041 2012-02-16 LTTng modules 2.0-pre15
1042         * Add timer instrumentation
1043         * fix: need to undef mainline define
1044         * fix: Include signal.h instead of irq.h for prototype match check
1045         * Add signal instrumentation
1046
1047 2012-02-16 LTTng modules 2.0-pre14
1048         * syscall tracing: sys_getcpu
1049         * Add sys_clone x86 instrumentation
1050         * statedump: fix include circular dep
1051         * Implement state dump
1052
1053 2012-02-09 LTTng modules 2.0-pre13
1054         * Update README
1055         * environment: write sysname, release, version, domain to metadata
1056         * Allow open /proc/lttng for read & write
1057
1058 2012-02-02 LTTng modules 2.0-pre12
1059         * Add x86 32/64 execve syscall instrumentation override
1060         * Remove unused defines
1061         * Add padding to ABI
1062         * Use LTTNG_KERNEL_SYM_NAME_LEN
1063         * Update version to 1.9.9
1064         * Add missing double-quotes to clock uuid
1065         * clock: read bootid as clock monotonic ID
1066         * Fix comment
1067         * Cleanup comment
1068         * clock: output clock description in metadata
1069         * Properly fix the timekeeping overflow detection
1070         * Fix init bug
1071         * rename lib-ring-buffer to lttng-lib-ring-buffer
1072         * Remove #warning
1073         * Mass rename: ltt_*/ltt-* to LTTNG_*/LTTNG-*
1074         * Update TODO
1075         * Update TODO
1076         * Remove debugfs file (keep only proc file)
1077         * Rename lttng-debugfs-abi files to lttng-abi
1078
1079 2011-12-13 LTTng modules 2.0-pre11
1080         * Fix OOPS caused by reference of config pointer
1081         * Gather detailed info from x86 64 32-bit compat syscall instrumentation
1082         * lttng lib: ring buffer move null pointer check to open
1083         * lttng lib: ring buffer remove duplicate null pointer
1084         * lttng lib: ring buffer: remove stale null-pointer
1085         * lttng wrapper: add missing include to kallsyms wrapper
1086         * lttng: cleanup one-bit signed bitfields
1087         * Add TODO file
1088         * Update symbol name length max size to 256
1089         * Fix last modifications to string_from_user operations
1090         * Document that depmod needs to be executed by hand
1091         * Fix strlen_user fault space reservation
1092         * Fix tp_copy_string_from_user handling of faults
1093         * Disable block layer tracing support for kernels < 2.6.38
1094         * lttng context: perf counter, fix 32-bit vs 64-bit field size bug
1095         * Update trace clock warning to match the current development plan
1096         * ringbuffer: make ring buffer printk less verbose
1097         * Makefile: do not run depmod manually
1098
1099 2011-09-30 LTTng modules 2.0-pre10
1100         * x86-32: override sys_mmap syscall instrumentation
1101         * Fix cast warning
1102
1103 2011-09-29 LTTng modules 2.0-pre9
1104         * x86 32 syscalls: fix !CONFIG_UID16
1105         * Use __string_from_user
1106         * Add __string_from_user
1107         * Rename "comm" context to "procname"
1108         * Fetch "type" name field for mount syscall
1109         * Create common override file for all architectures
1110         * Shrink stack size usage
1111         * Cleanup: remove unused lttng-compat-syscalls.c file
1112         * Support detailed compat syscalls on x86_64
1113         * Fix syscall table
1114         * Add disabled compat syscalls detail (work in progress)
1115         * Add config compat support for detailed x86_32 syscalls
1116         * Handle newer 3.1+ perf API
1117         * Add dummy x86-32 override headers
1118         * Bind x86-32 syscall headers
1119         * Add x86-32 syscall headers
1120         * Add check for KALLSYMS_ALL in syscall extraction script
1121         * Automate string extraction for syscalls
1122         * Automate syscall filename/pathname extraction
1123         * Add exit to ring_buffer_frontend so module is unloadable
1124         * Add sys_open filename (x86_64)
1125         * Add missing memcpy callback
1126         * copy_from_user and memset
1127         * Add missing alignment after header write
1128         * lib ring buffer: add frontend init as module_init
1129         * lib ring buffer frontend: add missing lock initialization
1130         * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address (missing file)
1131         * ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address
1132         * Create override for sys_mmap
1133         * Rename syscalls -> syscall in LTTng ABI
1134         * Use different event name for compat syscalls
1135         * Allow trace syscall table override
1136         * Add dummy override files
1137         * syscall detail: add override capability
1138         * Add pointer pretty-print heuristics
1139         * Add __field_hex
1140         * Rename sys exit errno into ret
1141         * Enable detailed syscalls only for native x86_64
1142         * Use "unknown" for compat syscalls
1143         * Disable x86-64 specific detailed syscalls for now, until we deal with 32-bit compat
1144         * Fix syscall exit
1145         * Fix sys exit
1146         * Only enable detailed syscalls for x86_64 for now
1147         * Merge unknown syscall method with extended detail method
1148         * Add underscore prefix before event names
1149         * Add syscalls pointers detailed syscall tracing
1150         * Use perl for regexp
1151         * Support generation of syscall probes for those with pointers
1152         * Support detailed syscalls with 0 arguments
1153         * detailed syscall tracing (work in progress)
1154         * Expose /proc/lttng file
1155         * Implement detailed syscall event probe
1156         * Disable perf build for < 2.6.33 kernels
1157         * Syscall detail mode: generate syscall table
1158         * block instrumentation: write cmd as hex sequence
1159         * lttng-events TRACE_EVENT generator cleanup
1160         * block layer instrumentation: fix cmd field
1161         * Remove 0 args syscalls for now from type-aware syscall cb generator
1162         * Generate trace syscall table macros
1163         * Put syscall tracing without arg types back in place
1164         * Detailed system call tracing (TRACE_EVENT() generation for integer support)
1165         * lttng events probes: don't clash with "ctx" variable name
1166         * lib ring buffer must take private pointer copy before decrementing refcount
1167
1168 2011-08-16 LTTng modules 2.0-pre8
1169         * Fix metadata buffer wait/wakeup
1170
1171 2011-08-12 LTTng modules 2.0-pre7
1172         * Add missing module refcount to lttng_tracepoint_list_fops
1173         * Add license info about lib/ringbuffer/ring_buffer_mmap.c being GPLv2