rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 ticks this GP) idle=e374/1/0x4000000000000000 softirq=6224/6225 fqs=7
(detected by 0, t=10502 jiffies, g=5169, q=174 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 896 Comm: kworker/1:2 Not tainted 6.2.0-rc2-syzkaller-00313-g9b43a525db12 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: events_freezable_power_ sync_hw_clock
RIP: 0010:__lock_acquire+0x2c8/0x56d0 kernel/locking/lockdep.c:4992
Code: 89 44 24 08 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 f8 3b 00 00 49 8d 44 24 18 4d 89 74 24 10 48 89 c2 48 89 44 24 48 <48> b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 b5 3b
RSP: 0018:ffffc900001e0ac8 EFLAGS: 00000046
RAX: ffff88801ecd0ac8 RBX: ffff88801ecd0a38 RCX: 0000000000000000
RDX: ffff88801ecd0ac8 RSI: 0000000000000068 RDI: ffff88801ecd0ac0
RBP: 0000000000000000 R08: 1ffff11003d9a155 R09: 0000000000000001
R10: fffffbfff1ce5b4a R11: 0000000000000000 R12: ffff88801ecd0ab0
R13: ffff88801ecd0000 R14: ffffffff91ea8f28 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000051c670 CR3: 000000002c3e7000 CR4: 0000000000350ee0
Call Trace:
lock_acquire kernel/locking/lockdep.c:5668 [inline]
lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
__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_deactivate lib/debugobjects.c:739 [inline]
debug_object_deactivate+0x105/0x300 lib/debugobjects.c:727
debug_hrtimer_deactivate kernel/time/hrtimer.c:425 [inline]
debug_deactivate kernel/time/hrtimer.c:481 [inline]
__run_hrtimer kernel/time/hrtimer.c:1653 [inline]
__hrtimer_run_queues+0x422/0xfb0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x320/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
__sysvec_apic_timer_interrupt+0x180/0x640 arch/x86/kernel/apic/apic.c:1113
sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x3c/0x70 kernel/locking/spinlock.c:194
Code: 74 24 10 e8 c6 34 5a f7 48 89 ef e8 6e a1 5a f7 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 af 04 4d f7 65 8b 05 60 f1 f9 75 85 c0 74 0a 5b 5d c3 e8 ec 19
RSP: 0018:ffffc900048efbe8 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff227347e
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8880b992b780 R08: 0000000000000001 R09: ffffffff91337bc7
R10: 0000000000000001 R11: 0000000000000001 R12: 35058d2b6a48cd00
R13: 000000001dcd6500 R14: 00000000e3b9f5a3 R15: 35058d2b10e09e00
hrtimer_start include/linux/hrtimer.h:418 [inline]
sched_sync_hw_clock kernel/time/ntp.c:519 [inline]
sync_hw_clock+0x1fa/0x4d0 kernel/time/ntp.c:660
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
rcu: rcu_preempt kthread starved for 10470 jiffies! g5169 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R running task stack:29232 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6555
schedule+0xde/0x1b0 kernel/sched/core.c:6631
schedule_timeout+0x14e/0x2a0 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x190/0x910 kernel/rcu/tree.c:1656
rcu_gp_kthread+0x23a/0x360 kernel/rcu/tree.c:1855
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 5150 Comm: kworker/0:3 Not tainted 6.2.0-rc2-syzkaller-00313-g9b43a525db12 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: events once_deferred
RIP: 0010:csd_lock_wait kernel/smp.c:413 [inline]
RIP: 0010:smp_call_function_many_cond+0x43f/0x10a0 kernel/smp.c:987
Code: e6 e8 05 fb 0a 00 45 85 e4 74 48 48 8b 04 24 49 89 c5 83 e0 07 49 c1 ed 03 49 89 c4 4d 01 fd 41 83 c4 03 e8 33 fe 0a 00 f3 90 <41> 0f b6 45 00 41 38 c4 7c 08 84 c0 0f 85 4e 0a 00 00 8b 43 08 31
RSP: 0018:ffffc900042ffa20 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b9941d60 RCX: 0000000000000000
RDX: ffff88807c5657c0 RSI: ffffffff8176542d RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000003
R13: ffffed10173283ad R14: 0000000000000001 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000960004 CR3: 000000000c48e000 CR4: 0000000000350ef0
Call Trace:
on_each_cpu_cond_mask+0x5a/0xa0 kernel/smp.c:1155
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1772 [inline]
text_poke_bp_batch+0x22e/0x6b0 arch/x86/kernel/alternative.c:1963
text_poke_flush arch/x86/kernel/alternative.c:2131 [inline]
text_poke_flush arch/x86/kernel/alternative.c:2128 [inline]
text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:2138
arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:146
jump_label_update+0x32f/0x410 kernel/jump_label.c:829
static_key_disable_cpuslocked+0x156/0x1b0 kernel/jump_label.c:235
static_key_disable+0x1a/0x20 kernel/jump_label.c:243
once_deferred+0x68/0xc0 lib/once.c:20
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308