I'm trying to use the net_dev_xmit tracepoint, but it's not showing up
in my traces. It's not listed by 'lttng list -k', but it is present in
debugfs/tracing/available_events. The reporting problem seems to be on
the kernel side, because kernel_list_events() in lttng-sessiond also
doesn't see any net events.
I'm suddenly thinking I must have I misunderstood something, because I
see lttng-modules 2.0.2 contains its own tracepoint definitions (e.g.
instrumentation/events/lttng-module/block.h), and indeed, only those
events seem to be known to lttng. How can I get at all the other
tracepoints which are already in the kernel? Is this "feature #6" in
lttng-modules TODO file?
Thanks!
lttng list -k says:
timer_init (loglevel: TRACE_EMERG (0)) (type: tracepoint)
timer_start (loglevel: TRACE_EMERG (0)) (type: tracepoint)
timer_expire_entry (loglevel: TRACE_EMERG (0)) (type: tracepoint)
timer_expire_exit (loglevel: TRACE_EMERG (0)) (type: tracepoint)
timer_cancel (loglevel: TRACE_EMERG (0)) (type: tracepoint)
hrtimer_init (loglevel: TRACE_EMERG (0)) (type: tracepoint)
hrtimer_start (loglevel: TRACE_EMERG (0)) (type: tracepoint)
hrtimer_expire_entry (loglevel: TRACE_EMERG (0)) (type: tracepoint)
hrtimer_expire_exit (loglevel: TRACE_EMERG (0)) (type: tracepoint)
hrtimer_cancel (loglevel: TRACE_EMERG (0)) (type: tracepoint)
itimer_state (loglevel: TRACE_EMERG (0)) (type: tracepoint)
itimer_expire (loglevel: TRACE_EMERG (0)) (type: tracepoint)
lttng_statedump_start (loglevel: TRACE_EMERG (0)) (type: tracepoint)
lttng_statedump_end (loglevel: TRACE_EMERG (0)) (type: tracepoint)
lttng_statedump_process_state (loglevel: TRACE_EMERG (0)) (type:
tracepoint)
lttng_statedump_file_descriptor (loglevel: TRACE_EMERG (0))
(type: tracepoint)
lttng_statedump_vm_map (loglevel: TRACE_EMERG (0)) (type: tracepoint)
lttng_statedump_network_interface (loglevel: TRACE_EMERG (0))
(type: tracepoint)
lttng_statedump_interrupt (loglevel: TRACE_EMERG (0)) (type:
tracepoint)
signal_generate (loglevel: TRACE_EMERG (0)) (type: tracepoint)
signal_deliver (loglevel: TRACE_EMERG (0)) (type: tracepoint)
signal_overflow_fail (loglevel: TRACE_EMERG (0)) (type: tracepoint)
signal_lose_info (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_kthread_stop (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_kthread_stop_ret (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_wakeup (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_wakeup_new (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_switch (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_migrate_task (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_process_free (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_process_exit (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_wait_task (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_process_wait (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_process_fork (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_stat_wait (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_stat_sleep (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_stat_iowait (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_stat_runtime (loglevel: TRACE_EMERG (0)) (type: tracepoint)
sched_pi_setprio (loglevel: TRACE_EMERG (0)) (type: tracepoint)
irq_handler_entry (loglevel: TRACE_EMERG (0)) (type: tracepoint)
irq_handler_exit (loglevel: TRACE_EMERG (0)) (type: tracepoint)
softirq_entry (loglevel: TRACE_EMERG (0)) (type: tracepoint)
softirq_exit (loglevel: TRACE_EMERG (0)) (type: tracepoint)
softirq_raise (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_rq_abort (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_rq_requeue (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_rq_complete (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_rq_insert (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_rq_issue (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_bio_bounce (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_bio_complete (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_bio_backmerge (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_bio_frontmerge (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_bio_queue (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_getrq (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_sleeprq (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_plug (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_unplug (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_split (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_bio_remap (loglevel: TRACE_EMERG (0)) (type: tracepoint)
block_rq_remap (loglevel: TRACE_EMERG (0)) (type: tracepoint)
debugfs/tracing/available_events:
btrfs:btrfs_transaction_commit
btrfs:btrfs_inode_new
btrfs:btrfs_inode_request
btrfs:btrfs_inode_evict
btrfs:btrfs_get_extent
btrfs:btrfs_ordered_extent_add
btrfs:btrfs_ordered_extent_remove
btrfs:btrfs_ordered_extent_start
btrfs:btrfs_ordered_extent_put
btrfs:__extent_writepage
btrfs:btrfs_writepage_end_io_hook
btrfs:btrfs_sync_file
btrfs:btrfs_sync_fs
btrfs:btrfs_delayed_tree_ref
btrfs:btrfs_delayed_data_ref
btrfs:btrfs_delayed_ref_head
btrfs:btrfs_chunk_alloc
btrfs:btrfs_chunk_free
btrfs:btrfs_cow_block
btrfs:btrfs_reserved_extent_alloc
btrfs:btrfs_reserved_extent_free
mac80211:drv_return_void
mac80211:drv_return_int
mac80211:drv_return_bool
mac80211:drv_return_u64
mac80211:drv_start
mac80211:drv_suspend
mac80211:drv_resume
mac80211:drv_stop
mac80211:drv_add_interface
mac80211:drv_change_interface
mac80211:drv_remove_interface
mac80211:drv_config
mac80211:drv_bss_info_changed
mac80211:drv_tx_sync
mac80211:drv_finish_tx_sync
mac80211:drv_prepare_multicast
mac80211:drv_configure_filter
mac80211:drv_set_tim
mac80211:drv_set_key
mac80211:drv_update_tkip_key
mac80211:drv_hw_scan
mac80211:drv_cancel_hw_scan
mac80211:drv_sched_scan_start
mac80211:drv_sched_scan_stop
mac80211:drv_sw_scan_start
mac80211:drv_sw_scan_complete
mac80211:drv_get_stats
mac80211:drv_get_tkip_seq
mac80211:drv_set_frag_threshold
mac80211:drv_set_rts_threshold
mac80211:drv_set_coverage_class
mac80211:drv_sta_notify
mac80211:drv_sta_add
mac80211:drv_sta_remove
mac80211:drv_conf_tx
mac80211:drv_get_tsf
mac80211:drv_set_tsf
mac80211:drv_reset_tsf
mac80211:drv_tx_last_beacon
mac80211:drv_ampdu_action
mac80211:drv_get_survey
mac80211:drv_flush
mac80211:drv_channel_switch
mac80211:drv_set_antenna
mac80211:drv_get_antenna
mac80211:drv_remain_on_channel
mac80211:drv_cancel_remain_on_channel
mac80211:drv_offchannel_tx
mac80211:drv_set_ringparam
mac80211:drv_get_ringparam
mac80211:drv_tx_frames_pending
mac80211:drv_offchannel_tx_cancel_wait
mac80211:drv_set_bitrate_mask
mac80211:drv_set_rekey_data
mac80211:drv_rssi_callback
mac80211:api_start_tx_ba_session
mac80211:api_start_tx_ba_cb
mac80211:api_stop_tx_ba_session
mac80211:api_stop_tx_ba_cb
mac80211:api_restart_hw
mac80211:api_beacon_loss
mac80211:api_connection_loss
mac80211:api_cqm_rssi_notify
mac80211:api_scan_completed
mac80211:api_sched_scan_results
mac80211:api_sched_scan_stopped
mac80211:api_sta_block_awake
mac80211:api_chswitch_done
mac80211:api_ready_on_channel
mac80211:api_remain_on_channel_expired
mac80211:api_gtk_rekey_notify
mac80211:api_enable_rssi_reports
mac80211:wake_queue
mac80211:stop_queue
skb:kfree_skb
skb:consume_skb
skb:skb_copy_datagram_iovec
net:net_dev_xmit
net:net_dev_queue
net:netif_receive_skb
net:netif_rx
napi:napi_poll
sock:sock_rcvqueue_full
sock:sock_exceed_buf_limit
udp:udp_fail_queue_rcv_skb
asoc:snd_soc_reg_write
asoc:snd_soc_reg_read
asoc:snd_soc_preg_write
asoc:snd_soc_preg_read
asoc:snd_soc_bias_level_start
asoc:snd_soc_bias_level_done
asoc:snd_soc_dapm_start
asoc:snd_soc_dapm_done
asoc:snd_soc_dapm_widget_power
asoc:snd_soc_dapm_widget_event_start
asoc:snd_soc_dapm_widget_event_done
asoc:snd_soc_dapm_walk_done
asoc:snd_soc_jack_irq
asoc:snd_soc_jack_report
asoc:snd_soc_jack_notify
asoc:snd_soc_cache_sync
scsi:scsi_dispatch_cmd_start
scsi:scsi_dispatch_cmd_error
scsi:scsi_dispatch_cmd_done
scsi:scsi_dispatch_cmd_timeout
scsi:scsi_eh_wakeup
drm:drm_vblank_event
drm:drm_vblank_event_queued
drm:drm_vblank_event_delivered
regulator:regulator_enable
regulator:regulator_enable_delay
regulator:regulator_enable_complete
regulator:regulator_disable
regulator:regulator_disable_complete
regulator:regulator_set_voltage
regulator:regulator_set_voltage_complete
gpio:gpio_direction
gpio:gpio_value
block:block_rq_abort
block:block_rq_requeue
block:block_rq_complete
block:block_rq_insert
block:block_rq_issue
block:block_bio_bounce
block:block_bio_complete
block:block_bio_backmerge
block:block_bio_frontmerge
block:block_bio_queue
block:block_getrq
block:block_sleeprq
block:block_plug
block:block_unplug
block:block_split
block:block_bio_remap
block:block_rq_remap
jbd2:jbd2_checkpoint
jbd2:jbd2_start_commit
jbd2:jbd2_commit_locking
jbd2:jbd2_commit_flushing
jbd2:jbd2_commit_logging
jbd2:jbd2_end_commit
jbd2:jbd2_submit_inode_data
jbd2:jbd2_run_stats
jbd2:jbd2_checkpoint_stats
jbd2:jbd2_cleanup_journal_tail
jbd:jbd_checkpoint
jbd:jbd_start_commit
jbd:jbd_commit_locking
jbd:jbd_commit_flushing
jbd:jbd_commit_logging
jbd:jbd_drop_transaction
jbd:jbd_end_commit
jbd:jbd_do_submit_data
jbd:jbd_cleanup_journal_tail
jbd:jbd_update_superblock_end
ext4:ext4_free_inode
ext4:ext4_request_inode
ext4:ext4_allocate_inode
ext4:ext4_evict_inode
ext4:ext4_drop_inode
ext4:ext4_mark_inode_dirty
ext4:ext4_begin_ordered_truncate
ext4:ext4_write_begin
ext4:ext4_da_write_begin
ext4:ext4_ordered_write_end
ext4:ext4_writeback_write_end
ext4:ext4_journalled_write_end
ext4:ext4_da_write_end
ext4:ext4_da_writepages
ext4:ext4_da_write_pages
ext4:ext4_da_writepages_result
ext4:ext4_writepage
ext4:ext4_readpage
ext4:ext4_releasepage
ext4:ext4_invalidatepage
ext4:ext4_discard_blocks
ext4:ext4_mb_new_inode_pa
ext4:ext4_mb_new_group_pa
ext4:ext4_mb_release_inode_pa
ext4:ext4_mb_release_group_pa
ext4:ext4_discard_preallocations
ext4:ext4_mb_discard_preallocations
ext4:ext4_request_blocks
ext4:ext4_allocate_blocks
ext4:ext4_free_blocks
ext4:ext4_sync_file_enter
ext4:ext4_sync_file_exit
ext4:ext4_sync_fs
ext4:ext4_alloc_da_blocks
ext4:ext4_mballoc_alloc
ext4:ext4_mballoc_prealloc
ext4:ext4_mballoc_discard
ext4:ext4_mballoc_free
ext4:ext4_forget
ext4:ext4_da_update_reserve_space
ext4:ext4_da_reserve_space
ext4:ext4_da_release_space
ext4:ext4_mb_bitmap_load
ext4:ext4_mb_buddy_bitmap_load
ext4:ext4_read_block_bitmap_load
ext4:ext4_load_inode_bitmap
ext4:ext4_direct_IO_enter
ext4:ext4_direct_IO_exit
ext4:ext4_fallocate_enter
ext4:ext4_fallocate_exit
ext4:ext4_unlink_enter
ext4:ext4_unlink_exit
ext4:ext4_truncate_enter
ext4:ext4_truncate_exit
ext4:ext4_ext_map_blocks_enter
ext4:ext4_ind_map_blocks_enter
ext4:ext4_ext_map_blocks_exit
ext4:ext4_ind_map_blocks_exit
ext4:ext4_ext_load_extent
ext4:ext4_load_inode
ext4:ext4_journal_start
ext4:ext4_trim_extent
ext4:ext4_trim_all_free
ext3:ext3_free_inode
ext3:ext3_request_inode
ext3:ext3_allocate_inode
ext3:ext3_evict_inode
ext3:ext3_drop_inode
ext3:ext3_mark_inode_dirty
ext3:ext3_write_begin
ext3:ext3_ordered_write_end
ext3:ext3_writeback_write_end
ext3:ext3_journalled_write_end
ext3:ext3_ordered_writepage
ext3:ext3_writeback_writepage
ext3:ext3_journalled_writepage
ext3:ext3_readpage
ext3:ext3_releasepage
ext3:ext3_invalidatepage
ext3:ext3_discard_blocks
ext3:ext3_request_blocks
ext3:ext3_allocate_blocks
ext3:ext3_free_blocks
ext3:ext3_sync_file_enter
ext3:ext3_sync_file_exit
ext3:ext3_sync_fs
ext3:ext3_rsv_window_add
ext3:ext3_discard_reservation
ext3:ext3_alloc_new_reservation
ext3:ext3_reserved
ext3:ext3_forget
ext3:ext3_read_block_bitmap
ext3:ext3_direct_IO_enter
ext3:ext3_direct_IO_exit
ext3:ext3_unlink_enter
ext3:ext3_unlink_exit
ext3:ext3_truncate_enter
ext3:ext3_truncate_exit
ext3:ext3_get_blocks_enter
ext3:ext3_get_blocks_exit
ext3:ext3_load_inode
writeback:writeback_nothread
writeback:writeback_queue
writeback:writeback_exec
writeback:writeback_start
writeback:writeback_written
writeback:writeback_wait
writeback:writeback_pages_written
writeback:writeback_nowork
writeback:writeback_wake_background
writeback:writeback_wake_thread
writeback:writeback_wake_forker_thread
writeback:writeback_bdi_register
writeback:writeback_bdi_unregister
writeback:writeback_thread_start
writeback:writeback_thread_stop
writeback:balance_dirty_start
writeback:balance_dirty_wait
writeback:balance_dirty_written
writeback:wbc_writepage
writeback:writeback_queue_io
writeback:global_dirty_state
writeback:writeback_congestion_wait
writeback:writeback_wait_iff_congested
writeback:writeback_single_inode_requeue
writeback:writeback_single_inode
kmem:kmalloc
kmem:kmem_cache_alloc
kmem:kmalloc_node
kmem:kmem_cache_alloc_node
kmem:kfree
kmem:kmem_cache_free
kmem:mm_page_free_direct
kmem:mm_pagevec_free
kmem:mm_page_alloc
kmem:mm_page_alloc_zone_locked
kmem:mm_page_pcpu_drain
kmem:mm_page_alloc_extfrag
vmscan:mm_vmscan_kswapd_sleep
vmscan:mm_vmscan_kswapd_wake
vmscan:mm_vmscan_wakeup_kswapd
vmscan:mm_vmscan_direct_reclaim_begin
vmscan:mm_vmscan_memcg_reclaim_begin
vmscan:mm_vmscan_memcg_softlimit_reclaim_begin
vmscan:mm_vmscan_direct_reclaim_end
vmscan:mm_vmscan_memcg_reclaim_end
vmscan:mm_vmscan_memcg_softlimit_reclaim_end
vmscan:mm_shrink_slab_start
vmscan:mm_shrink_slab_end
vmscan:mm_vmscan_lru_isolate
vmscan:mm_vmscan_memcg_isolate
vmscan:mm_vmscan_writepage
vmscan:mm_vmscan_lru_shrink_inactive
vmscan:replace_swap_token
vmscan:put_swap_token
vmscan:disable_swap_token
vmscan:update_swap_token_priority
power:cpu_idle
power:cpu_frequency
power:machine_suspend
power:power_start
power:power_frequency
power:power_end
power:clock_enable
power:clock_disable
power:clock_set_rate
power:power_domain_target
module:module_load
module:module_free
module:module_get
module:module_put
module:module_request
workqueue:workqueue_queue_work
workqueue:workqueue_activate_work
workqueue:workqueue_execute_start
workqueue:workqueue_execute_end
signal:signal_generate
signal:signal_deliver
signal:signal_overflow_fail
signal:signal_lose_info
timer:timer_init
timer:timer_start
timer:timer_expire_entry
timer:timer_expire_exit
timer:timer_cancel
timer:hrtimer_init
timer:hrtimer_start
timer:hrtimer_expire_entry
timer:hrtimer_expire_exit
timer:hrtimer_cancel
timer:itimer_state
timer:itimer_expire
irq:irq_handler_entry
irq:irq_handler_exit
irq:softirq_entry
irq:softirq_exit
irq:softirq_raise
sched:sched_kthread_stop
sched:sched_kthread_stop_ret
sched:sched_wakeup
sched:sched_wakeup_new
sched:sched_switch
sched:sched_migrate_task
sched:sched_process_free
sched:sched_process_exit
sched:sched_wait_task
sched:sched_process_wait
sched:sched_process_fork
sched:sched_stat_wait
sched:sched_stat_sleep
sched:sched_stat_iowait
sched:sched_stat_runtime
sched:sched_pi_setprio
--
Hollis Blanchard
Product Owner, Sourcery Analyzer <http://go.mentor.com/sourceryanalyzer>
Mentor Graphics, Embedded Systems Division
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