rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
(detected by 1, t=10506 jiffies, g=4621, q=59 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10506 (4294954329-4294943823), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10506 jiffies! g4621 f0x2 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:28672 pid: 17 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
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: 3628 Comm: syz-executor136 Not tainted 5.18.0-next-20220526-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:match_held_lock+0x1/0xc0 kernel/locking/lockdep.c:5111
Code: ee 48 c7 c7 40 7d cc 89 e8 43 dc bb ff 48 c7 c7 a0 7d cc 89 e8 37 dc bb ff e8 91 28 cc ff 31 c0 5d c3 0f 1f 80 00 00 00 00 53 <48> 89 fb 48 83 ec 08 48 39 77 10 74 6a 66 f7 47 22 f0 ff 74 5a 48
RSP: 0018:ffffc90000007be8 EFLAGS: 00000093
RAX: 000000000000000a RBX: 0000000000000002 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8bd86f60 RDI: ffff88801c3fc5b0
RBP: ffffffff8bd86f60 R08: 0000000000000000 R09: ffffffff8dbb4997
R10: fffffbfff1b76932 R11: 0000000000000001 R12: ffff88801c3fbb00
R13: ffff88801c3fc560 R14: 00000000ffffffff R15: ffff88801c3fc5b0
FS: 0000555555bfc300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000600 CR3: 00000000719d6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_is_held kernel/locking/lockdep.c:5406 [inline]
lock_is_held_type+0xa7/0x140 kernel/locking/lockdep.c:5708
lock_is_held include/linux/lockdep.h:279 [inline]
rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0x560/0x780 kernel/locking/lockdep.c:5676
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x16/0x70 kernel/locking/spinlock.c:194
debug_object_activate+0x287/0x3e0 lib/debugobjects.c:686
debug_hrtimer_activate kernel/time/hrtimer.c:420 [inline]
debug_activate kernel/time/hrtimer.c:475 [inline]
enqueue_hrtimer+0x27/0x3e0 kernel/time/hrtimer.c:1084
__run_hrtimer kernel/time/hrtimer.c:1702 [inline]
__hrtimer_run_queues+0xb02/0xe50 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 0a ae e4 f7 48 89 ef e8 12 2f e5 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 43 37 d8 f7 65 8b 05 dc a6 88 76 85 c0 74 0a 5b 5d c3 e8 60 18
RSP: 0018:ffffc9000303f1e0 EFLAGS: 00000206
RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff201ee0e
RDX: 0000000000000000 RSI: 0000000000000202 RDI: 0000000000000001
RBP: ffff88804ed4dae8 R08: 0000000000000001 R09: ffffffff900ac987
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88804ed4dae8 R14: 0000000000000246 R15: ffff88804ed4d800
spin_unlock_irqrestore include/linux/spinlock.h:415 [inline]
taprio_change+0x2eab/0x4050 net/sched/sch_taprio.c:1607
taprio_init+0x52e/0x670 net/sched/sch_taprio.c:1739
qdisc_create.constprop.0+0x44a/0x10f0 net/sched/sch_api.c:1253
tc_modify_qdisc+0x4c5/0x1a00 net/sched/sch_api.c:1660
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:2492
___sys_sendmsg+0xf3/0x170 net/socket.c:2546
__sys_sendmsg net/socket.c:2575 [inline]
__do_sys_sendmsg net/socket.c:2584 [inline]
__se_sys_sendmsg net/socket.c:2582 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2582
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: 0033:0x7f8cac15cea9
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:00007ffcc8216508 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8cac15cea9
RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004
RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d
R10: 000000000000000d R11: 0000000000000246 R12: 00007ffcc8216520
R13: 00000000000f4240 R14: 0000000000000000 R15: 0000000000000000
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.689 msecs
watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [kworker/u4:1:11]
Modules linked in:
irq event stamp: 174684
hardirqs last enabled at (174683): [] asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
hardirqs last disabled at (174684): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1106
softirqs last enabled at (141402): [] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last enabled at (141402): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
softirqs last disabled at (141369): [] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last disabled at (141369): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 5.18.0-next-20220526-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:write_comp_data+0x21/0x90 kernel/kcov.c:229
Code: 84 00 00 00 00 00 0f 1f 00 65 8b 05 a9 df 87 7e 49 89 f1 89 c6 49 89 d2 81 e6 00 01 00 00 49 89 f8 65 48 8b 14 25 80 6f 02 00 00 01 ff 00 74 0e 85 f6 74 59 8b 82 a4 15 00 00 85 c0 74 4f 8b
RSP: 0018:ffffc90000107948 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff8880b9c42500 RCX: ffffffff816fff5d
RDX: ffff888010f0bb00 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffed10173884a1
R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8cac11ac84 CR3: 000000000ba8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
csd_lock_wait kernel/smp.c:414 [inline]
smp_call_function_many_cond+0x4bd/0x1110 kernel/smp.c:988
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:808 [inline]
toggle_allocation_gate+0x100/0x390 mm/kfence/core.c:800
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: ee out %al,(%dx)
1: 48 c7 c7 40 7d cc 89 mov $0xffffffff89cc7d40,%rdi
8: e8 43 dc bb ff callq 0xffbbdc50
d: 48 c7 c7 a0 7d cc 89 mov $0xffffffff89cc7da0,%rdi
14: e8 37 dc bb ff callq 0xffbbdc50
19: e8 91 28 cc ff callq 0xffcc28af
1e: 31 c0 xor %eax,%eax
20: 5d pop %rbp
21: c3 retq
22: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
29: 53 push %rbx
* 2a: 48 89 fb mov %rdi,%rbx <-- trapping instruction
2d: 48 83 ec 08 sub $0x8,%rsp
31: 48 39 77 10 cmp %rsi,0x10(%rdi)
35: 74 6a je 0xa1
37: 66 f7 47 22 f0 ff testw $0xfff0,0x22(%rdi)
3d: 74 5a je 0x99
3f: 48 rex.W