rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=c7d4/1/0x4000000000000000 softirq=8963/8964 fqs=260
rcu: (detected by 0, t=10502 jiffies, g=11665, q=788 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5110 Comm: syz-executor.4 Not tainted 6.9.0-rc3-next-20240409-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:122 [inline]
RIP: 0010:lock_release+0x125/0x9f0 kernel/locking/lockdep.c:5767
Code: 7e 85 c0 0f 85 23 05 00 00 65 48 8b 04 25 40 d3 03 00 48 89 44 24 18 48 8d 98 dc 0a 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 38 <84> c0 0f 85 d8 05 00 00 83 3b 00 0f 85 f1 04 00 00 4c 8d b4 24 b0
RSP: 0018:ffffc90000a18b40 EFLAGS: 00000807
RAX: 0000000000000000 RBX: ffff88806517a8dc RCX: ffffffff81729ae0
RDX: 0000000000000000 RSI: ffffffff8c1fa8e0 RDI: ffffffff8c1fa8a0
RBP: ffffc90000a18c70 R08: ffffffff8fac31af R09: 1ffffffff1f58635
R10: dffffc0000000000 R11: fffffbfff1f58636 R12: 1ffff92000143174
R13: ffffffff898e8824 R14: ffff88802523fc00 R15: dffffc0000000000
FS: 0000555555e08480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd9c25ad988 CR3: 0000000065076000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline]
_raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
advance_sched+0x9b4/0xca0 net/sched/sch_taprio.c:981
__run_hrtimer kernel/time/hrtimer.c:1692 [inline]
__hrtimer_run_queues+0x5a5/0xd50 kernel/time/hrtimer.c:1756
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:finish_task_switch+0x1ea/0x870 kernel/sched/core.c:5283
Code: c9 50 e8 79 b0 0b 00 48 83 c4 08 4c 89 f7 e8 9d 38 00 00 0f 1f 44 00 00 4c 89 f7 e8 c0 a7 28 0a e8 cb 7e 36 00 fb 48 8b 5d c0 <48> 8d bb f8 15 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc
RSP: 0018:ffffc900034f7968 EFLAGS: 00000286
RAX: cc38f227e6e98400 RBX: ffff888065179e00 RCX: ffffffff94772703
RDX: dffffc0000000000 RSI: ffffffff8bcad7c0 RDI: ffffffff8c1fa900
RBP: ffffc900034f79b0 R08: ffffffff8fac31af R09: 1ffffffff1f58635
R10: dffffc0000000000 R11: fffffbfff1f58636 R12: 1ffff110172a7e6f
R13: dffffc0000000000 R14: ffff8880b953e600 R15: ffff8880b953f378
context_switch kernel/sched/core.c:5412 [inline]
__schedule+0x17f0/0x4a50 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
do_nanosleep+0x197/0x600 kernel/time/hrtimer.c:2051
hrtimer_nanosleep+0x227/0x470 kernel/time/hrtimer.c:2104
__do_sys_clock_nanosleep kernel/time/posix-timers.c:1396 [inline]
__se_sys_clock_nanosleep+0x32b/0x3c0 kernel/time/posix-timers.c:1373
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7fd9c24a9275
Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 f6 b9 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 4f ba ff ff 48 8b 04 24 48 83 c4 28 f7 d8
RSP: 002b:00007fffb6e321c0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000000000000034 RCX: 00007fd9c24a9275
RDX: 00007fffb6e32200 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fffb6e3228c R08: 0000000000000000 R09: 00007fd9c312b0b0
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 0000000000018021 R14: 0000000000017fb2 R15: 0000000000000008
rcu: rcu_preempt kthread starved for 9980 jiffies! g11665 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:24304 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2582
rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:2030
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2232
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 5155 Comm: kworker/0:5 Not tainted 6.9.0-rc3-next-20240409-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events jump_label_update_timeout
RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline]
RIP: 0010:smp_call_function_many_cond+0x1894/0x2a00 kernel/smp.c:855
Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 15 da 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 c0 d5 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 a4 d5
RSP: 0018:ffffc9000381f7c0 EFLAGS: 00000293
RAX: ffffffff818a310c RBX: 1ffff110172a8861 RCX: ffff88807e2fbc00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000381f9c0 R08: ffffffff818a30db R09: 1ffffffff25ef4b4
R10: dffffc0000000000 R11: fffffbfff25ef4b5 R12: dffffc0000000000
R13: ffff8880b9544308 R14: ffff8880b943f740 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555589c54938 CR3: 000000000e134000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2086 [inline]
text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2296
text_poke_flush arch/x86/kernel/alternative.c:2487 [inline]
text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2494
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
__static_key_slow_dec_cpuslocked+0x10b/0x170 kernel/jump_label.c:276
__static_key_slow_dec kernel/jump_label.c:283 [inline]
jump_label_update_timeout+0x1e/0x30 kernel/jump_label.c:291
process_one_work kernel/workqueue.c:3218 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299
worker_thread+0x86d/0xd70 kernel/workqueue.c:3380
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243