rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (0 ticks this GP) idle=ae64/1/0x4000000000000000 softirq=12950/12950 fqs=0
(detected by 0, t=10505 jiffies, g=16277, q=235 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3613 Comm: kworker/1:3 Not tainted 6.1.91-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events_freezable_power_ sync_hw_clock
RIP: 0010:kasan_check_range+0x1/0x290 mm/kasan/generic.c:188
Code: 01 c6 48 89 c7 e8 8f 99 a9 08 31 c0 c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 cc cc cc cc cc cc cc cc cc cc cc cc 55 <41> 57 41 56 53 b0 01 48 85 f6 0f 84 9a 01 00 00 48 89 fd 48 01 f5
RSP: 0018:ffffc900001e0c40 EFLAGS: 00000046
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff816bc524
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88807de742e8
RBP: ffff88807de742e8 R08: dffffc0000000000 R09: fffffbfff1ce710e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807de74000
R13: ffff88807de74340 R14: dffffc0000000000 R15: ffff88807de742e8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f90119a8000 CR3: 0000000073f8a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:72 [inline]
atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline]
queued_spin_is_locked include/asm-generic/qspinlock.h:57 [inline]
debug_spin_unlock kernel/locking/spinlock_debug.c:100 [inline]
do_raw_spin_unlock+0x54/0x8a0 kernel/locking/spinlock_debug.c:140
__raw_spin_unlock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_unlock+0x1a/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
advance_sched+0x68b/0x970 net/sched/sch_taprio.c:749
__run_hrtimer kernel/time/hrtimer.c:1686 [inline]
__hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1750
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666
Code: 2b 00 74 08 4c 89 f7 e8 7f a9 77 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900041efb00 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200083df6c RCX: ffffffff91c94103
RDX: dffffc0000000000 RSI: ffffffff8aec1340 RDI: ffffffff8b3d4560
RBP: ffffc900041efc48 R08: 1ffffffff20c0828 R09: 0000000000031b8d
R10: 000000000010e473 R11: dffffc0000000001 R12: 1ffff9200083df68
R13: dffffc0000000000 R14: ffffc900041efb60 R15: 0000000000000246
process_one_work+0x7bf/0x11d0 kernel/workqueue.c:2267
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
rcu: rcu_preempt kthread timer wakeup didn't happen for 10504 jiffies! g16277 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=5662
rcu: rcu_preempt kthread starved for 10505 jiffies! g16277 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
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:26680 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
kthread+0x28d/0x320 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:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3613 Comm: kworker/1:3 Not tainted 6.1.91-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events_freezable_power_ sync_hw_clock
RIP: 0010:trace_lock_acquire include/trace/events/lock.h:24 [inline]
RIP: 0010:lock_acquire+0xf3/0x5a0 kernel/locking/lockdep.c:5633
Code: 0d 0f 86 e4 02 00 00 89 db 48 89 d8 48 c1 e8 06 48 8d 3c c5 68 88 73 8e be 08 00 00 00 e8 75 ac 77 00 48 0f a3 1d 75 26 09 0d <73> 0d e8 46 e3 08 00 84 c0 0f 84 b9 02 00 00 48 c7 c0 24 bd 73 8e
RSP: 0018:ffffc900001e0b60 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff816a61eb
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e738868
RBP: ffffc900001e0ca8 R08: dffffc0000000000 R09: fffffbfff1ce710e
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200003c174
R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f90119a8000 CR3: 0000000073f8a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
_raw_spin_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:170
__run_hrtimer kernel/time/hrtimer.c:1690 [inline]
__hrtimer_run_queues+0x6d3/0xe50 kernel/time/hrtimer.c:1750
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666
Code: 2b 00 74 08 4c 89 f7 e8 7f a9 77 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900041efb00 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200083df6c RCX: ffffffff91c94103
RDX: dffffc0000000000 RSI: ffffffff8aec1340 RDI: ffffffff8b3d4560
RBP: ffffc900041efc48 R08: 1ffffffff20c0828 R09: 0000000000031b8d
R10: 000000000010e473 R11: dffffc0000000001 R12: 1ffff9200083df68
R13: dffffc0000000000 R14: ffffc900041efb60 R15: 0000000000000246
process_one_work+0x7bf/0x11d0 kernel/workqueue.c:2267
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308