rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=53949, q=546 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294982341-4294971839), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g53949 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:27656 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 __schedule+0x15dd/0x52d0
 schedule+0x164/0x360
 schedule_timeout+0x158/0x2c0
 rcu_gp_fqs_loop+0x312/0x11d0
 rcu_gp_kthread+0x9e/0x2b0
 kthread+0x388/0x470
 ret_from_fork+0x51e/0xb90
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 15224 Comm: syz.7.2742 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:native_apic_msr_write+0x39/0x50
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc cc 89 f6 31 d2 e9 c6 64 77 03 66 0f 1f 44 00
RSP: 0018:ffffc90000007450 EFLAGS: 00000046
RAX: 00000000000002ca RBX: ffff888121023e40 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 00000000000002ca RDI: 0000000000000838
RBP: 0000000000000000 R08: ffffffff81b2ce75 R09: ffffffff9a2c0508
R10: 0000000000000003 R11: ffffffff8173caf0 R12: 000000001000431b
R13: dffffc0000000000 R14: 00000000000002ca R15: 0000000000000020
FS:  00007fb9da7ad6c0(0000) GS:ffff88818de5a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000010c7e2000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lapic_next_event+0x11/0x20
 clockevents_program_event+0x1c9/0x350
 hrtimer_interrupt+0xb08/0x1010
 __sysvec_apic_timer_interrupt+0x102/0x460
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:unwind_next_frame+0x0/0x23c0
Code: 0a cc 89 d9 80 e1 07 80 c1 03 38 c1 7c 92 48 89 df e8 e4 88 b9 00 eb 88 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 55 41 57 41 56 41 55 41 54 53 48 81 ec 98 00 00 00 49
RSP: 0018:ffffc900000076c0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc90000007780 RCX: 0000000000000100
RDX: dffffc0000000000 RSI: ffffffff873307af RDI: ffffc900000076c8
RBP: ffffc90000007750 R08: ffffc90000007790 R09: 0000000000000004
R10: ffffc90000007718 R11: ffffffff81b0c390 R12: ffff8881aa4557c0
R13: 00000000000002c0 R14: ffffffff81b0c390 R15: ffffc900000076c8
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x384/0x690
 __alloc_skb+0x27d/0x7d0
 new_skb+0x2f/0x2b0
 aoecmd_cfg+0x2b1/0x800
 call_timer_fn+0x192/0x640
 __run_timer_base+0x652/0x8b0
 run_timer_softirq+0xb7/0x170
 handle_softirqs+0x22a/0x870
 __irq_exit_rcu+0x5f/0x150
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__sanitizer_cov_trace_pc+0x57/0x70
Code: 00 74 2c 8b 91 80 16 00 00 83 fa 02 75 21 48 8b 91 88 16 00 00 48 8b 32 48 8d 7e 01 8b 89 84 16 00 00 48 39 cf 73 08 48 89 3a <48> 89 44 f2 08 e9 0f 16 ec 09 cc 66 66 66 66 66 2e 0f 1f 84 00 00
RSP: 0018:ffffc900063af8d8 EFLAGS: 00000287
RAX: ffffffff81d16591 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc900245f4000 RSI: 0000000000000b54 RDI: 0000000000000b55
RBP: ffffc900063af9f8 R08: 0000000000000001 R09: ffff888121033390
R10: dffffc0000000000 R11: fffff91fdc8d3005 R12: ffffe8fee4698000
R13: dffffc0000000000 R14: 1ffff92000c75f2c R15: ffffffff8e62a680
 trace_call_bpf+0x81/0xb70
 perf_trace_run_bpf_submit+0x78/0x170
 perf_trace_lock+0x32d/0x410
 lock_release+0x392/0x3d0
 _raw_spin_unlock+0x16/0x50
 futex_wake+0x48d/0x580
 do_futex+0x395/0x420
 __se_sys_futex+0x3a8/0x450
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb9d999c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb9da7ad0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fb9d9c16098 RCX: 00007fb9d999c799
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fb9d9c1609c
RBP: 00007fb9d9c16090 R08: 3fffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb9d9c16128 R14: 00007ffe2d6af670 R15: 00007ffe2d6af758
 </TASK>
