rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (1 GPs behind) idle=731c/1/0x4000000000000000 softirq=30368/30370 fqs=2
rcu: 	(detected by 0, t=10502 jiffies, g=20969, q=188 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 8179 Comm: syz.0.578 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:__lock_acquire+0x83c/0xd20
Code: 48 c1 e9 20 89 ca c1 c2 04 41 29 cc 44 31 e2 44 01 f9 41 29 d7 89 d6 c1 c6 06 44 31 fe 01 ca 89 f0 c1 c0 08 29 f1 31 c8 01 d6 <29> c2 89 c1 c1 c1 10 31 d1 01 f0 41 89 cf 41 c1 c7 13 29 ce 41 31
RSP: 0018:ffffc900001e0750 EFLAGS: 00000083
RAX: 00000000ffe58d98 RBX: 0000000000000000 RCX: 0000000000001a67
RDX: 00000000ffffff95 RSI: 00000000ffffe52c RDI: ffff88801fd91cc0
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff81ada78b
R10: dffffc0000000000 R11: ffffed1026cc4f51 R12: 0000000000000068
R13: ffff88801fd927b0 R14: ffff88801fd927b0 R15: 0000000000000068
FS:  00007f45a5e206c0(0000) GS:ffff8881a3c12000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f45a5e61fc8 CR3: 000000003959a000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lock_acquire+0x120/0x360
 _raw_spin_lock_irqsave+0xa7/0xf0
 hrtimer_try_to_cancel+0x22b/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:preempt_count_add+0x32/0x1a0
Code: 53 49 bf 00 00 00 00 00 fc ff df 48 c7 c0 20 33 ac 99 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 f1 00 00 00 83 3d fe 24 1c 18 00 <75> 07 65 8b 05 05 d2 10 11 65 01 3d fe d1 10 11 48 c7 c0 20 33 ac
RSP: 0018:ffffc90002b9fc20 EFLAGS: 00000246
RAX: 0000000000000004 RBX: ffffc90002b9fd78 RCX: ffffffff99ac3303
RDX: 0000000000000608 RSI: 0000000000000cc0 RDI: 0000000000000001
RBP: 0000000000000608 R08: 0000000000000005 R09: ffffffff822c6e49
R10: 0000000000000406 R11: 0000000000000000 R12: 0000000000000005
R13: 0000000000000000 R14: ffffea0000add200 R15: dffffc0000000000
 obj_cgroup_charge_account+0x2c/0x660
 __memcg_slab_post_alloc_hook+0x3e6/0x7f0
 kmem_cache_alloc_lru_noprof+0x2c7/0x3d0
 sock_alloc_inode+0x28/0xc0
 alloc_inode+0x6a/0x1b0
 __sock_create+0x12d/0x9f0
 __sys_socket+0xd7/0x1b0
 __x64_sys_socket+0x7a/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f45a4f8eba9
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:00007f45a5e20038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f45a51d6180 RCX: 00007f45a4f8eba9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010
RBP: 00007f45a5011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f45a51d6218 R14: 00007f45a51d6180 R15: 00007ffc7f7f3808
 </TASK>
rcu: rcu_preempt kthread starved for 10498 jiffies! g20969 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:27184 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>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 8183 Comm: syz.1.576 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:smp_call_function_many_cond+0xd38/0x12d0
Code: 89 ee 83 e6 01 31 ff e8 b6 63 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 61 5f 0b 00 eb 38 f3 90 42 0f b6 04 2b <84> c0 75 11 41 f7 04 24 01 00 00 00 74 1e e8 45 5f 0b 00 eb e4 44
RSP: 0018:ffffc90002b7f3a0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff11026cc7f61 RCX: 0000000000080000
RDX: ffffc90020001000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90002b7f520 R08: ffffffff8fa3b237 R09: 1ffffffff1f47646
R10: dffffc0000000000 R11: fffffbfff1f47647 R12: ffff88813663fb08
R13: dffffc0000000000 R14: ffff88804b03b1c0 R15: 0000000000000001
FS:  00007f30efa7a6c0(0000) GS:ffff8880b8612000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f30efa79fc8 CR3: 000000010d434000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 on_each_cpu_cond_mask+0x3f/0x80
 smp_text_poke_batch_finish+0x5f9/0x1130
 __static_call_transform+0x4eb/0x750
 arch_static_call_transform+0x98/0xc0
 __static_call_update+0xe4/0x5d0
 bpf_dispatcher_change_prog+0xacd/0xc90
 bpf_prog_test_run_xdp+0x65d/0x1000
 bpf_prog_test_run+0x2c7/0x340
 __sys_bpf+0x562/0x860
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f30eeb8eba9
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:00007f30efa7a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f30eedd6090 RCX: 00007f30eeb8eba9
RDX: 0000000000000050 RSI: 0000200000000600 RDI: 000000000000000a
RBP: 00007f30eec11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f30eedd6128 R14: 00007f30eedd6090 R15: 00007ffc55d007f8
 </TASK>
