rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (0 ticks this GP) idle=ba3c/1/0x4000000000000000 softirq=67846/67846 fqs=0
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P16601/1:b..l
rcu: 	(detected by 1, t=10505 jiffies, g=52157, q=244 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 16597 Comm: syz.3.2860 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:do_raw_spin_unlock+0x10c/0x240
Code: 85 29 01 00 00 41 c7 07 ff ff ff ff 48 c7 c0 d8 72 fa 8d 48 c1 e8 03 42 80 3c 20 00 74 0c 48 c7 c7 d8 72 fa 8d e8 24 26 85 00 <48> 83 3d 04 5a 5c 0c 00 0f 84 14 01 00 00 48 89 df c6 07 00 0f 1f
RSP: 0018:ffffc90000007848 EFLAGS: 00000046
RAX: 1ffffffff1bf4e5b RBX: ffff88804b027a80 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88804b027a80
RBP: 1ffff11009604f51 R08: ffff88804b027a83 R09: 1ffff11009604f50
R10: dffffc0000000000 R11: ffffed1009604f51 R12: dffffc0000000000
R13: 1ffff11009604f52 R14: ffff88804b027a90 R15: ffff88804b027a88
FS:  00007f5951a7d6c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcd0482010 CR3: 00000000426ac000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 _raw_spin_unlock_irqrestore+0x78/0x110
 hrtimer_try_to_cancel+0x3be/0x420
 hrtimer_cancel+0x3b/0x50
 cpu_clock_event_stop+0xd9/0x130
 __perf_event_overflow+0x580/0xe40
 perf_swevent_hrtimer+0x3c5/0x550
 __hrtimer_run_queues+0x4e0/0xc60
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0xa1/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:dev_queue_xmit_nit+0x155/0xcc0
Code: eb 05 e8 0e aa 5d f8 49 81 c6 c8 00 00 00 48 8b 44 24 30 48 8d 48 18 48 89 4c 24 68 48 83 c0 10 48 89 44 24 38 48 8b 44 24 20 <48> 05 98 01 00 00 48 89 44 24 60 45 31 e4 45 31 ed 4c 89 f0 48 c1
RSP: 0018:ffffc90002f0f258 EFLAGS: 00000286
RAX: ffff8881192da000 RBX: 0000000000000001 RCX: ffff8880395f1698
RDX: ffffc900264dd000 RSI: 000000000000015d RDI: 000000000000015e
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff896215ed
R10: 0000000000004888 R11: 0000000000000002 R12: 0000000000000000
R13: ffff888109d84948 R14: ffff888109d84948 R15: 1ffff110072be2d0
 dev_hard_start_xmit+0x1be/0x830
 __dev_queue_xmit+0x1b8d/0x3b50
 __netlink_deliver_tap+0x5ad/0x850
 netlink_deliver_tap+0x19c/0x1b0
 netlink_unicast+0x7fa/0x9e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5950b8eba9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5951a7d038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f5950dd5fa0 RCX: 00007f5950b8eba9
RDX: 0000000000004000 RSI: 0000200000000100 RDI: 000000000000000d
RBP: 00007f5950c11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5950dd6038 R14: 00007f5950dd5fa0 R15: 00007fff2d5675d8
 </TASK>
task:syz.6.2861      state:R  running task     stack:25960 pid:16601 tgid:16600 ppid:16115  task_flags:0x400140 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 preempt_schedule_common+0x83/0xd0
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 __local_bh_enable_ip+0x13e/0x1c0
 bpf_test_run_xdp_live+0x1868/0x1b10
 bpf_prog_test_run_xdp+0x716/0x1000
 bpf_prog_test_run+0x2c7/0x340
 __sys_bpf+0x581/0x870
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f39c578eba9
RSP: 002b:00007f39c6601038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f39c59d5fa0 RCX: 00007f39c578eba9
RDX: 0000000000000048 RSI: 0000200000000600 RDI: 000000000000000a
RBP: 00007f39c5811e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f39c59d6038 R14: 00007f39c59d5fa0 R15: 00007ffcd0481bf8
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10504 jiffies! g52157 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=35572
rcu: rcu_preempt kthread starved for 10505 jiffies! g52157 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:26728 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
