TITLE: WARNING: still has locks held in count_memcg_event_mm
TYPE: LOCKDEP

[  826.523990][ T4398] ====================================
[  826.525201][ T4398] WARNING: syz-fuzzer/4398 still has locks held!
[  826.526227][ T4398] 5.9.0-12994-gf9893351acae #15 Not tainted
[  826.527205][ T4398] ------------------------------------
[  826.528205][ T4398] 1 lock held by syz-fuzzer/4398:
[  826.573908][ T4398]  #0: ffffa00019769560 (rcu_read_lock){....}-{1:2}, at: count_memcg_event_mm+0x24/0x2f0
[  826.577778][ T4398] 
[  826.577778][ T4398] stack backtrace:
[  826.578731][ T4398] CPU: 1 PID: 4398 Comm: syz-fuzzer Not tainted 5.9.0-12994-gf9893351acae #15
[  826.579661][ T4398] Hardware name: linux,dummy-virt (DT)
[  826.580250][ T4398] Call trace:
[  826.580864][ T4398]  dump_backtrace+0x0/0x4d0
[  826.581516][ T4398]  show_stack+0x2c/0x80
[  826.582158][ T4398]  dump_stack+0x1b0/0x254
[  826.582822][ T4398]  debug_check_no_locks_held+0x110/0x130
[  826.583509][ T4398]  get_signal+0x1a94/0x2400
[  826.584037][ T4398]  do_notify_resume+0x4e0/0xd50
[  826.584568][ T4398]  work_pending+0x8/0x34c
