#
1	vfs_read		Reading from file
1	vfs_write		Writing to file
1	__mark_inode_dirty	Marking inode dirty
1	vfs_readdir		Reading directory content
1	vfs_unlink		Unlinking file
1	blocking_notifier_call_chain	Blocking notifier
1	lock_super		Superblock lock contention
1	vfs_create		Creating a file
#
2	__bread			Synchronous buffer read
2	do_generic_mapping_read	Reading file data
2	sock_sendmsg		Sending data over socket
2	do_sys_open		Opening file
2	do_sys_poll		Waiting for event (poll)
2	core_sys_select		Waiting for event (select)
2	proc_reg_read		Reading from /proc file
2	__pollwait		Waiting for event (poll)
2	sys_fcntl		FCNTL system call
2	scsi_error_handler	SCSI error handler
2	proc_root_readdir	Reading /proc directory
2	ksoftirqd		Waking ksoftirqd
2	worker_thread		.
2	do_unlinkat		Unlinking file
2	__wait_on_buffer	Waiting for buffer IO to complete
2	pdflush			pdflush() kernel thread
2	kjournald		kjournald() kernel thread
2	blkdev_ioctl		block device IOCTL
2	kauditd_thread		kernel audit daemon
2	tty_ioctl		TTY IOCTL
2	__filemap_fdatawrite_range fdatasync system call
2	do_sync_write		synchronous write
2	kthreadd		kthreadd kernel thread
2	usb_port_resume		Waking up USB device
2	usb_autoresume_device	Waking up USB device
2	kswapd			kswapd() kernel thread
2	md_thread		Raid resync kernel thread
2	i915_wait_request	Waiting for GPU command to complete
2	request_module		Loading a kernel module

#
3	tty_wait_until_sent	Waiting for TTY to finish sending
3	pipe_read		Reading from a pipe
3	pipe_write		Writing to a pipe
3	pipe_wait		Waiting for pipe data
3	read_block_bitmap	Reading EXT3 block bitmaps
3	scsi_execute_req	Executing raw SCSI command
3	sys_wait4		Waiting for a process to die
3	sr_media_change		Checking for media change
3	sr_do_ioctl		SCSI cdrom ioctl
3	sd_ioctl		SCSI disk ioctl
3	sr_cd_check		Checking CDROM media present
3	ext3_read_inode		Reading EXT3 inode
3	htree_dirblock_to_tree	Reading EXT3 directory htree
3	ext3_readdir		Reading EXT3 directory
3	ext3_bread		Synchronous EXT3 read
3	ext3_free_branches	Unlinking file on EXT3
3	ext3_get_branch		Reading EXT3 indirect blocks
3	ext3_find_entry		EXT3: Looking for file
3	__ext3_get_inode_loc	Reading EXT3 inode
3	ext3_delete_inode	EXT3 deleting inode
3	sync_page		Writing a page to disk
3	tty_poll		Waiting for TTY data
3	tty_read		Waiting for TTY input
3	tty_write		Writing data to TTY
3	update_atime		Updating inode atime
3	page_cache_sync_readahead	Pagecache sync readahead
3	do_fork			Fork() system call
3	sys_mkdirat		Creating directory
3	lookup_create		Creating file
3	inet_sendmsg		Sending TCP/IP data
3	tcp_recvmsg		Receiving TCP/IP data
3	link_path_walk		Following symlink
3	path_walk		Walking directory tree
3	sys_getdents		Reading directory content
3	unix_stream_recvmsg	Waiting for data on unix socket
3	ext3_mkdir		EXT3: Creating a directory
3	journal_get_write_access	EXT3: Waiting for journal access
3	synchronize_rcu		Waiting for RCU
3	input_close_device	Closing input device
3	mousedev_close_device	Closing mouse device
3	mousedev_release	Closing mouse device
3	mousedev_open		Opening mouse device
3	kmsg_read		Reading from dmesg
3	sys_futex		Userspace lock contention
3	do_futex		Userspace lock contention
3	vt_waitactive		vt_waitactive IOCTL
3	acquire_console_sem	Waiting for console access
3	filp_close		Closing a file
3	sync_inode		(f)syncing an inode to disk
3	ata_exec_internal_sg	Executing internal ATA command
3	writeback_inodes	Writing back inodes
3	ext3_orphan_add 	EXT3 adding orphan
3	ext3_mark_inode_dirty 	EXT3 marking inode dirty
3	ext3_unlink 		EXT3 unlinking file
3	ext3_create		EXT3 Creating a file
3	log_do_checkpoint	EXT3 journal checkpoint
3	generic_delete_inode	Deleting an inode
3	proc_delete_inode	Removing /proc file
3	do_truncate		Truncating file
3	sys_execve		Executing a program
3	journal_commit_transaction	EXT3: committing transaction
3	__stop_machine_run	Freezing the kernel (for module load)
3	sys_munmap		unmapping memory
3	sys_mmap		mmaping memory
3	sync_buffer		Writing buffer to disk (synchronous)
3	inotify_inode_queue_event	Inotify event
3	proc_lookup		Looking up /proc file
3	generic_make_request	Creating block layer request
3	get_request_wait	Creating block layer request
3	alloc_page_vma		Allocating a VMA
#3	__d_lookup		Looking up a dentry
3	blkdev_direct_IO	Direct block device IO
3	sys_mprotect		mprotect() system call
3	shrink_icache_memory	reducing inode cache memory footprint
3	vfs_stat_fd		stat() operation
3	cdrom_open		opening cdrom device
3	sys_epoll_wait		Waiting for event (epoll)
3	sync_sb_inodes		Syncing inodes
3	tcp_connect		TCP/IP connect
3	ata_scsi_ioctl		ATA/SCSI disk ioctl
3	do_rmdir		Removing directory
3	vfs_rmdir		Removing directory
3	sys_flock		flock() on a file
3	usbdev_open		opening USB device
3	lock_kernel		Big Kernel Lock contention
3	blk_execute_rq		Submitting block IO
3	scsi_cmd_ioctl		SCSI ioctl command
3	acpi_ec_transaction	ACPI hardware access
3	journal_get_undo_access	Waiting for EXT3 journal undo operation
3	i915_irq_wait		Waiting for GPU interrupt
3	i915_gem_throttle_ioctl	Throttling GPU while waiting for commands

#
#
5	do_page_fault		Page fault
5	handle_mm_fault		Page fault
5	filemap_fault		Page fault
5	sync_filesystems	Syncing filesystem
5	sys_nanosleep		Application requested delay
5	sys_pause		Application requested delay
5	evdev_read		Reading keyboard/mouse input
5	do_fsync		fsync() on a file
5	__log_wait_for_space	Waiting for EXT3 journal space