rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=983c/1/0x4000000000000000 softirq=26670/26678 fqs=0
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P8302/1:b..l
rcu: 	(detected by 1, t=10506 jiffies, g=19361, q=120 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 8272 Comm: syz.2.693 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:perf_trace_lock+0x10b/0x3b0
Code: 03 48 89 44 24 10 e8 d4 b2 dd 09 89 c3 83 f8 08 0f 83 4a 02 00 00 48 8d 1c dd 10 2d be 8d 48 89 d8 48 c1 e8 03 42 80 3c 38 00 <74> 08 48 89 df e8 db 80 86 00 4c 89 74 24 38 49 83 c6 68 4c 89 f0
RSP: 0018:ffffc90000007460 EFLAGS: 00000046
RAX: 1ffffffff1b7c5a2 RBX: ffffffff8dbe2d10 RCX: 008836b21fa48000
RDX: ffffffff81cb18b7 RSI: ffffffff8be33de0 RDI: ffffffff8be33da0
RBP: ffffc90000007548 R08: ffffc9000000764f R09: 0000000000000000
R10: ffffc90000007640 R11: ffffffffa00008d0 R12: 1ffff92000000e94
R13: 000000000000000d R14: ffffffff8e009200 R15: dffffc0000000000
FS:  00007f81288806c0(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563f3857e008 CR3: 00000000264a2000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lock_release+0x3b2/0x3e0
 trace_call_bpf+0x5a9/0x850
 perf_trace_run_bpf_submit+0x78/0x170
 perf_trace_lock+0x2f8/0x3b0
 lock_release+0x3b2/0x3e0
 _raw_spin_unlock_irqrestore+0x70/0x110
 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:finish_task_switch+0x26b/0x950
Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 df c4 eb 09 e8 ea 41 36 00 fb 4c 8b 65 c0 <49> 8d bc 24 18 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc900093b7358 EFLAGS: 00000282
RAX: 008836b21fa48000 RBX: 0000000000000000 RCX: 008836b21fa48000
RDX: 0000000000000000 RSI: ffffffff8d9ba186 RDI: ffffffff8be33e00
RBP: ffffc900093b73b0 R08: ffffffff8fa3a837 R09: 1ffffffff1f47506
R10: dffffc0000000000 R11: fffffbfff1f47507 R12: ffff888109359cc0
R13: dffffc0000000000 R14: ffff88802f6e5640 R15: ffff88804b03ab58
 __schedule+0x17a0/0x4cc0
 schedule+0x165/0x360
 schedule_timeout+0x9a/0x270
 __skb_wait_for_more_packets+0x3a2/0x580
 __unix_dgram_recvmsg+0x284/0xd60
 sock_recvmsg+0x22c/0x270
 ____sys_recvmsg+0x1c9/0x460
 ___sys_recvmsg+0x1b5/0x510
 __x64_sys_recvmsg+0x198/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f812798eba9
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:00007f8128880038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007f8127bd5fa0 RCX: 00007f812798eba9
RDX: 0000000000000000 RSI: 0000200000000400 RDI: 0000000000000005
RBP: 00007f8127a11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8127bd6038 R14: 00007f8127bd5fa0 R15: 00007fffc6046938
 </TASK>
task:modprobe        state:R  running task     stack:24592 pid:8302  tgid:8302  ppid:2185   task_flags:0x400000 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_call_function_single+0x1a/0x20
RIP: 0010:lock_acquire+0x175/0x360
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 7b 5f 03 11 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc90008d16e18 EFLAGS: 00000206
RAX: 26e5edc3f9ccec00 RBX: 0000000000000000 RCX: 26e5edc3f9ccec00
RDX: 0000000000000000 RSI: ffffffff8dba9858 RDI: ffffffff8be33e00
RBP: ffffffff8172d195 R08: 0000000000000000 R09: ffffffff8172d195
R10: ffffc90008d16c00 R11: ffffffff81ac4d00 R12: 0000000000000002
R13: ffffffff8e13a120 R14: 0000000000000000 R15: 0000000000000246
 unwind_next_frame+0xc2/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 mas_alloc_nodes+0x2e9/0x8e0
 mas_store_gfp+0x46c/0x860
 do_vmi_align_munmap+0x2a7/0x420
 do_vmi_munmap+0x253/0x2e0
 __vm_munmap+0x23b/0x3d0
 elf_load+0x2c3/0x6c0
 load_elf_interp+0x4ce/0xb60
 load_elf_binary+0x1a01/0x2740
 bprm_execve+0x99c/0x1450
 kernel_execve+0x8f0/0x9f0
 call_usermodehelper_exec_async+0x210/0x360
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: rcu_preempt kthread starved for 10506 jiffies! g19361 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:27224 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: 1 UID: 0 PID: 8271 Comm: syz.2.693 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:ffffc90008df76c0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 1ffff11009608341 RCX: ffff88810947b980
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90008df7840 R08: ffffffff8fa3a837 R09: 1ffffffff1f47506
R10: dffffc0000000000 R11: fffffbfff1f47507 R12: ffff88804b041a08
R13: dffffc0000000000 R14: ffff88813663b1c0 R15: 0000000000000000
FS:  000055557e07a500(0000) GS:ffff8881a3c13000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78326aad58 CR3: 00000000264a2000 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+0xe98/0x1130
 __static_call_transform+0x4eb/0x750
 arch_static_call_transform+0x98/0xc0
 __static_call_update+0x3c3/0x5d0
 tracepoint_probe_unregister+0x898/0x9b0
 trace_event_reg+0x153/0x270
 perf_trace_event_unreg+0xb9/0x1b0
 perf_trace_destroy+0xa4/0x150
 __free_event+0x346/0x7e0
 perf_event_release_kernel+0x45b/0x510
 perf_release+0x38/0x50
 __fput+0x44c/0xa70
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f812798eba9
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:00007fffc6046a98 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f8127bd7da0 RCX: 00007f812798eba9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f8127bd7da0 R08: 0000000000000234 R09: 0000001ec6046d8f
R10: 00007f8127bd7cb0 R11: 0000000000000246 R12: 0000000000027e97
R13: 00007f8127bd6090 R14: ffffffffffffffff R15: 00007fffc6046bb0
 </TASK>
