rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2680 jiffies s: 15137 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 9246 Comm: syz-executor.3 Not tainted 6.2.0-rc6-next-20230201-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:__lock_acquire+0x23d/0x5df0 kernel/locking/lockdep.c:5007
Code: 00 3b 74 24 10 75 0c 48 83 7c 24 20 00 0f 85 73 0d 00 00 4c 03 64 24 28 0f b7 4c 24 10 49 8d 44 24 20 48 89 c2 48 89 44 24 38 <66> 81 e1 ff 1f 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14
RSP: 0018:ffffc900001e0a90 EFLAGS: 00000082
RAX: ffff8880821e4528 RBX: ffffffff91e4a768 RCX: 0000000000000000
RDX: ffff8880821e4528 RSI: 000000000000006c RDI: ffff8880821e4500
RBP: 0000000000000000 R08: 1ffff1101043c8a0 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880821e4508
R13: ffff8880821e3a80 R14: 0000000000000000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffd8fa7038 CR3: 000000003baf5000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lock_acquire.part.0+0x11c/0x370 kernel/locking/lockdep.c:5691
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x3d/0x60 kernel/locking/spinlock.c:162
 debug_object_activate+0x132/0x3e0 lib/debugobjects.c:665
 debug_hrtimer_activate kernel/time/hrtimer.c:420 [inline]
 debug_activate kernel/time/hrtimer.c:475 [inline]
 enqueue_hrtimer+0x2b/0x490 kernel/time/hrtimer.c:1084
 __run_hrtimer kernel/time/hrtimer.c:1702 [inline]
 __hrtimer_run_queues+0xa40/0xcf0 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x320/0x7b0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
 __sysvec_apic_timer_interrupt+0x180/0x660 arch/x86/kernel/apic/apic.c:1113
 sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:mod_objcg_state+0x3df/0xa50 mm/memcontrol.c:3222
Code: c6 9a c5 db 81 4c 89 e7 e8 3e 95 8a ff 4d 85 ed 0f 85 c5 01 00 00 9c 58 f6 c4 02 0f 85 7f 03 00 00 4d 85 ed 74 01 fb 4d 85 ff <0f> 84 92 01 00 00 48 83 c4 28 4c 89 ff 5b 5d 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc900064ff7f8 EFLAGS: 00000246
RAX: 0000000000000006 RBX: ffff8880b9937e60 RCX: 1ffffffff227d8fe
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff8880b9937e88 R08: 0000000000000001 R09: ffffffff913d8bb7
R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880b9937e60
R13: 0000000000000200 R14: ffff88813fffa000 R15: 0000000000000000
 memcg_slab_free_hook mm/slab.h:588 [inline]
 slab_free mm/slub.c:3782 [inline]
 kmem_cache_free+0x452/0x4e0 mm/slub.c:3809
 anon_vma_chain_free mm/rmap.c:146 [inline]
 unlink_anon_vmas+0x451/0x860 mm/rmap.c:447
 free_pgtables+0x251/0x420 mm/memory.c:383
 exit_mmap+0x1f3/0x7d0 mm/mmap.c:3045
 __mmput+0x128/0x4c0 kernel/fork.c:1209
 mmput+0x60/0x70 kernel/fork.c:1231
 exit_mm kernel/exit.c:563 [inline]
 do_exit+0x9d7/0x2b60 kernel/exit.c:856
 do_group_exit+0xd4/0x2a0 kernel/exit.c:1019
 get_signal+0x2321/0x25b0 kernel/signal.c:2859
 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1d17e8c0c9
Code: Unable to access opcode bytes at 0x7f1d17e8c09f.
RSP: 002b:00007f1d18ca0218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f1d17fabf88 RCX: 00007f1d17e8c0c9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f1d17fabf8c
RBP: 00007f1d17fabf80 R08: 00007ffc0cdb4080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1d17fabf8c
R13: 00007ffc0cdad36f R14: 00007f1d18ca0300 R15: 0000000000022000
 </TASK>