rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-...!: (9 ticks this GP) idle=68b/1/0x4000000000000000 softirq=5965/5965 fqs=2
(t=15214 jiffies g=5069 q=81 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 15131 jiffies! g5069 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=2338
rcu: rcu_preempt kthread starved for 15132 jiffies! g5069 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:27392 pid: 16 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5146 [inline]
__schedule+0xa00/0x4b50 kernel/sched/core.c:6458
schedule+0xd2/0x1f0 kernel/sched/core.c:6530
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1999
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2187
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
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: 3633 Comm: syz-executor119 Not tainted 5.19.0-rc5-syzkaller-00228-ge5524c2a1fc4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
RIP: 0010:debug_smp_processor_id+0xc/0x20 lib/smp_processor_id.c:60
Code: a4 bb ff 48 8b 74 24 28 48 c7 c7 40 34 28 8a e8 4a a4 bb ff e8 4e 00 cc ff eb a2 0f 1f 00 0f 1f 44 00 00 48 c7 c6 80 34 28 8a <48> c7 c7 c0 34 28 8a e9 78 fe ff ff 0f 1f 84 00 00 00 00 00 55 48
RSP: 0018:ffffc90000007c20 EFLAGS: 00000006
RAX: 0000000000000001 RBX: 1ffff92000000f8c RCX: ffffffff815d84e8
RDX: dffffc0000000000 RSI: ffffffff8a283480 RDI: ffffffff8dbaf7d0
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8dbaf7d7
R10: fffffbfff1b75efa R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: ffffffff9115a100 R15: 0000000000000000
FS: 00005555572e3300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020002794 CR3: 000000007261d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:341 [inline]
rcu_is_watching+0xe/0xb0 kernel/rcu/tree.c:1138
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_sched_held+0x1c/0x70 kernel/rcu/update.c:123
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x480/0x570 kernel/locking/lockdep.c:5636
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
debug_object_deactivate lib/debugobjects.c:732 [inline]
debug_object_deactivate+0x101/0x300 lib/debugobjects.c:720
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+0x3f8/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/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+0x38/0x70 kernel/locking/spinlock.c:194
Code: 74 24 10 e8 7a 6c e3 f7 48 89 ef e8 82 ed e3 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 23 f6 d6 f7 65 8b 05 dc 5e 88 76 85 c0 74 0a 5b 5d c3 e8 70 d5
RSP: 0018:ffffc90003097268 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff20d8dce
RDX: 0000000000000000 RSI: 0000000000000202 RDI: 0000000000000001
RBP: ffff8880b9b2a500 R08: 0000000000000001 R09: ffffffff9067c9c7
R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff
R13: 0000000000000246 R14: ffff8880b9b2a600 R15: dffffc0000000000
unlock_hrtimer_base kernel/time/hrtimer.c:1017 [inline]
hrtimer_try_to_cancel kernel/time/hrtimer.c:1336 [inline]
hrtimer_try_to_cancel+0x14e/0x1e0 kernel/time/hrtimer.c:1316
hrtimer_cancel+0x13/0x40 kernel/time/hrtimer.c:1443
taprio_reset+0x72/0x280 net/sched/sch_taprio.c:1632
qdisc_reset+0xdb/0x6e0 net/sched/sch_generic.c:1026
dev_reset_queue+0x92/0x130 net/sched/sch_generic.c:1273
netdev_for_each_tx_queue include/linux/netdevice.h:2423 [inline]
dev_deactivate_many+0x365/0x9e0 net/sched/sch_generic.c:1339
dev_deactivate+0xe9/0x1b0 net/sched/sch_generic.c:1362
qdisc_graft+0xdb8/0x1270 net/sched/sch_api.c:1061
tc_modify_qdisc+0xbb7/0x1a00 net/sched/sch_api.c:1671
rtnetlink_rcv_msg+0x43a/0xc90 net/core/rtnetlink.c:6089
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:734
____sys_sendmsg+0x6eb/0x810 net/socket.c:2488
___sys_sendmsg+0xf3/0x170 net/socket.c:2542
__sys_sendmsg net/socket.c:2571 [inline]
__do_sys_sendmsg net/socket.c:2580 [inline]
__se_sys_sendmsg net/socket.c:2578 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2578
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f2cb2ba4e79
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc14a6b448 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2cb2ba4e79
RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d
R10: 000000000000000d R11: 0000000000000246 R12: 00007ffc14a6b460
R13: 00000000000f4240 R14: 000000000000d542 R15: 00007ffc14a6b454
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.800 msecs
NMI backtrace for cpu 1
CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 5.19.0-rc5-syzkaller-00228-ge5524c2a1fc4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Workqueue: events_unbound toggle_allocation_gate
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x262/0x3f0 kernel/rcu/tree_stall.h:371
print_cpu_stall kernel/rcu/tree_stall.h:667 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:751 [inline]
rcu_pending kernel/rcu/tree.c:3977 [inline]
rcu_sched_clock_irq.cold+0x144/0x8fc kernel/rcu/tree.c:2675
update_process_times+0x11a/0x1a0 kernel/time/timer.c:1839
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:243
tick_sched_timer+0xee/0x120 kernel/time/tick-sched.c:1480
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:kvm_wait+0x98/0x100 arch/x86/kernel/kvm.c:1071
Code: fa 83 e2 07 38 d0 7f 04 84 c0 75 63 0f b6 07 40 38 c6 74 35 48 83 c4 10 c3 c3 e8 23 f5 4a 00 66 90 0f 00 2d 3a ad 94 08 fb f4 <48> 83 c4 10 c3 89 74 24 0c 48 89 3c 24 e8 f6 f3 4a 00 8b 74 24 0c
RSP: 0018:ffffc900003f8d98 EFLAGS: 00000242
RAX: 00000000000266d6 RBX: 0000000000000000 RCX: 1ffffffff20d8dce
RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000000000
RBP: ffff88807ae040f0 R08: 0000000000000001 R09: ffffffff9067c9c7
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: ffffed100f5c081e R14: 0000000000000001 R15: ffff8880b9b3adc0
pv_wait arch/x86/include/asm/paravirt.h:603 [inline]
pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
__pv_queued_spin_lock_slowpath+0x8c7/0xb50 kernel/locking/qspinlock.c:511
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
do_raw_spin_lock+0x200/0x2a0 kernel/locking/spinlock_debug.c:115
spin_lock include/linux/spinlock.h:349 [inline]
net_tx_action+0x3d8/0xd30 net/core/dev.c:5065
__do_softirq+0x29b/0x9c2 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:csd_lock_wait kernel/smp.c:414 [inline]
RIP: 0010:smp_call_function_many_cond+0x499/0x1110 kernel/smp.c:988
Code: 01 89 ee e8 69 98 0a 00 85 ed 74 47 48 8b 04 24 49 89 c4 83 e0 07 49 c1 ec 03 48 89 c5 4d 01 fc 83 c5 03 e8 09 9c 0a 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 21 0a 00 00 8b 43 08 31
RSP: 0018:ffffc9000031f950 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffe8ffffc0bd20 RCX: 0000000000000000
RDX: ffff888012052040 RSI: ffffffff816efb57 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: fffff91ffff817a5
R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000
on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1154
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1231 [inline]
text_poke_bp_batch+0x233/0x6c0 arch/x86/kernel/alternative.c:1419
text_poke_flush arch/x86/kernel/alternative.c:1589 [inline]
text_poke_flush arch/x86/kernel/alternative.c:1586 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1596
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
jump_label_update+0x32f/0x410 kernel/jump_label.c:830
static_key_enable_cpuslocked+0x1b1/0x260 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
toggle_allocation_gate mm/kfence/core.c:811 [inline]
toggle_allocation_gate+0x100/0x390 mm/kfence/core.c:803
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
----------------
Code disassembly (best guess):
0: a4 movsb %ds:(%rsi),%es:(%rdi)
1: bb ff 48 8b 74 mov $0x748b48ff,%ebx
6: 24 28 and $0x28,%al
8: 48 c7 c7 40 34 28 8a mov $0xffffffff8a283440,%rdi
f: e8 4a a4 bb ff callq 0xffbba45e
14: e8 4e 00 cc ff callq 0xffcc0067
19: eb a2 jmp 0xffffffbd
1b: 0f 1f 00 nopl (%rax)
1e: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
23: 48 c7 c6 80 34 28 8a mov $0xffffffff8a283480,%rsi
* 2a: 48 c7 c7 c0 34 28 8a mov $0xffffffff8a2834c0,%rdi <-- trapping instruction
31: e9 78 fe ff ff jmpq 0xfffffeae
36: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1)
3d: 00
3e: 55 push %rbp
3f: 48 rex.W