WARNING: CPU: 1 PID: 5171 at lib/debugobjects.c:505 debug_print_object+0x194/0x2c0 lib/debugobjects.c:505 Modules linked in: CPU: 1 PID: 5171 Comm: kworker/1:5 Not tainted 6.3.0-rc7-next-20230420-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 Workqueue: rcu_gp wait_rcu_exp_gp RIP: 0010:debug_print_object+0x194/0x2c0 lib/debugobjects.c:505 Code: df 48 89 fe 48 c1 ee 03 80 3c 16 00 0f 85 c7 00 00 00 48 8b 14 dd c0 0f a7 8a 50 4c 89 ee 48 c7 c7 80 03 a7 8a e8 7c ec 35 fd <0f> 0b 58 83 05 86 75 63 0a 01 48 83 c4 20 5b 5d 41 5c 41 5d 41 5e RSP: 0018:ffffc900056af890 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 RDX: ffff88801e71d7c0 RSI: ffffffff814be0c7 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8a4ecb40 R13: ffffffff8aa70a60 R14: ffffc900056af950 R15: ffffffff817267d0 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020404030 CR3: 000000002bc8b000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: debug_object_assert_init+0x20f/0x310 lib/debugobjects.c:912 debug_timer_assert_init kernel/time/timer.c:792 [inline] debug_assert_init kernel/time/timer.c:837 [inline] __mod_timer+0x9b/0xe80 kernel/time/timer.c:1020 schedule_timeout+0x149/0x2b0 kernel/time/timer.c:2166 synchronize_rcu_expedited_wait_once kernel/rcu/tree_exp.h:572 [inline] synchronize_rcu_expedited_wait kernel/rcu/tree_exp.h:624 [inline] rcu_exp_wait_wake+0x2ae/0x1550 kernel/rcu/tree_exp.h:693 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552 kthread+0x33e/0x440 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308