rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P15059/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=63557, q=82 ncpus=2)
task:syz-executor.4  state:R  running task     stack:26896 pid:15059 tgid:15056 ppid:5120   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5376 [inline]
 __schedule+0xee5/0x59b0 kernel/sched/core.c:6688
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6865
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x3a/0x40 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 zap_pte_range mm/memory.c:1534 [inline]
 zap_pmd_range mm/memory.c:1582 [inline]
 zap_pud_range mm/memory.c:1611 [inline]
 zap_p4d_range mm/memory.c:1632 [inline]
 unmap_page_range+0x1472/0x2c00 mm/memory.c:1653
 unmap_single_vma+0x194/0x2b0 mm/memory.c:1699
 unmap_vmas+0x229/0x470 mm/memory.c:1743
 exit_mmap+0x1ad/0xa70 mm/mmap.c:3311
 __mmput+0x12a/0x4d0 kernel/fork.c:1349
 mmput+0x62/0x70 kernel/fork.c:1371
 exit_mm kernel/exit.c:567 [inline]
 do_exit+0x9a1/0x2ac0 kernel/exit.c:858
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1021
 get_signal+0x2391/0x2760 kernel/signal.c:2904
 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:309
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x11c/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296
 do_syscall_64+0x4b/0x110 arch/x86/entry/common.c:88
 entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7f4519e7cae9
RSP: 002b:00007f451ab77178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f4519f9bf88 RCX: 00007f4519e7cae9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f4519f9bf8c
RBP: 00007f4519f9bf80 R08: 0000000000000001 R09: 00007f451ab776c0
R10: 0000000000000024 R11: 0000000000000246 R12: 00007f4519f9bf8c
R13: 000000000000000b R14: 00007ffcc1ddb190 R15: 00007ffcc1ddb278
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g63557 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=112458
rcu: rcu_preempt kthread starved for 10502 jiffies! g63557 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:28048 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5376 [inline]
 __schedule+0xee5/0x59b0 kernel/sched/core.c:6688
 __schedule_loop kernel/sched/core.c:6763 [inline]
 schedule+0xe5/0x270 kernel/sched/core.c:6778
 schedule_timeout+0x156/0x2b0 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:1626
 rcu_gp_kthread+0x243/0x380 kernel/rcu/tree.c:1825
 kthread+0x337/0x440 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 15062 Comm: syz-executor.1 Not tainted 6.6.0-rc7-next-20231026-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:lock_acquire kernel/locking/lockdep.c:5753 [inline]
RIP: 0010:lock_acquire+0x182/0x530 kernel/locking/lockdep.c:5718
Code: 00 00 00 9c 8f 44 24 08 48 8b 6c 24 08 fa 48 c7 c7 60 c0 cc 8a e8 0e 43 18 09 48 89 e8 45 89 e0 44 89 ea 65 ff 05 76 33 99 7e <6a> 00 25 00 02 00 00 4c 89 f7 6a 00 41 0f 94 c1 48 89 c5 6a 00 45
RSP: 0018:ffffc90000007c28 EFLAGS: 00000002
RAX: 0000000000000046 RBX: 1ffff92000000f87 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8accc060 RDI: ffffffff8b2e8d00
RBP: 0000000000000046 R08: 0000000000000001 R09: fffffbfff1e31e6a
R10: ffffffff8f18f357 R11: ffffc90000007ff8 R12: 0000000000000001
R13: 0000000000000000 R14: ffffffff929d6bf0 R15: 0000000000000000
FS:  00007f0ce34566c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0ce2798000 CR3: 0000000065429000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162
 debug_object_deactivate lib/debugobjects.c:783 [inline]
 debug_object_deactivate+0x113/0x320 lib/debugobjects.c:771
 debug_hrtimer_deactivate kernel/time/hrtimer.c:427 [inline]
 debug_deactivate kernel/time/hrtimer.c:483 [inline]
 __run_hrtimer kernel/time/hrtimer.c:1656 [inline]
 __hrtimer_run_queues+0x47a/0xc00 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
 __sysvec_apic_timer_interrupt+0x10c/0x400 arch/x86/kernel/apic/apic.c:1082
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x70 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 76 f2 e3 f6 48 89 df e8 ae 71 e4 f6 f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 25 bc d5 f6 65 8b 05 06 69 7e 75 85 c0 74 12 5b
RSP: 0018:ffffc9000d917a78 EFLAGS: 00000246
RAX: 0000000000000006 RBX: ffff8880b982b940 RCX: 1ffffffff23e2516
RDX: 0000000000000000 RSI: ffffffff8accbda0 RDI: ffffffff8b2e8d00
RBP: 0000000000000282 R08: 0000000000000001 R09: fffffbfff23e23d0
R10: ffffffff91f11e87 R11: 0000000000000000 R12: ffffff73c0f827c7
R13: 0000000000000000 R14: 00000150974827c7 R15: dffffc0000000000
 clock_was_set+0x591/0x850 kernel/time/hrtimer.c:972
 timekeeping_inject_offset+0x4d1/0x640 kernel/time/timekeeping.c:1395
 do_adjtimex+0x373/0xaa0 kernel/time/timekeeping.c:2444
 do_clock_adjtime kernel/time/posix-timers.c:1159 [inline]
 __do_sys_clock_adjtime+0x173/0x280 kernel/time/posix-timers.c:1171
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7f0ce267cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0ce34560c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f0ce279bf80 RCX: 00007f0ce267cae9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000000
RBP: 00007f0ce26c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f0ce279bf80 R15: 00007ffc84208388
 </TASK>