root@polyu:~# sleep 0
[   88.054643] [bash 255] copy_creds get_cred(ffff88800eb76500{1,0})::before
[   88.056365] [bash 255] copy_creds get_cred(ffff88800eb76500{2,0})::after
[   88.058577] [bash 255] copy_process copy_creds::after, cred ffff88800eb76500{2}
[   88.065081] [bash 255] copy_process new pid 261, cred ffff88800eb76500
[   88.071047] [sleep 261] commit_creds get_cred(ffff88801a5adf00{1})::before
[   88.072148] [sleep 261] commit_creds put_cred(ffff88800eb76500{4,0})*2::before
[   88.073434] [sleep 261] commit_creds put_cred(ffff88800eb76500{2,0})*2::after
[   88.075925] [sleep 261] override_creds get_new_cred(ffff88801a5ade00{2,1})::after = ffff88801a5adf00{2,1}
[   88.077480] [sleep 261] revert_creds(ffff88801a5adf00{2,1}) put_cred(ffff88801a5ade00{1,1})
[   88.078788] [sleep 261] revert_creds destroying cred ffff88801a5ade00
root@polyu:~# [   88.093488] [sleep 261] exit_creds(ffff88801a5adf00{18,2},ffff88801a5adf00{18,2})::before
[   88.093954] [swapper/0 0] file_free_rcu destroying cred ffff88800eb76500
[   88.096524] [swapper/0 0] file_free_rcu destroying cred ffff88801a5adf00