dd-?;[unknown];[dd] 10101010
dd-?;[unknown];read 10101010
dd-?;[unknown];read;system_call;__fdget_pos 10101010
dd-?;[unknown];read;system_call;sys_read;vfs_read;fsnotify 10101010
dd-?;[unknown];write;system_call;sys_write 10101010
dd-?;[unknown];write;system_call;sys_write;vfs_write;fsnotify;__srcu_read_unlock 20202020
dd-?;[unknown];write;system_call;sys_write;vfs_write;rw_verify_area 10101010
dd-?;write;system_call;sys_write;__fdget_pos;__fdget;__fget_light 10101010
dd-?;write;system_call;sys_write;vfs_write;fsnotify;__srcu_read_unlock 10101010
