clocksource: Long readout interval, skipping watchdog check: cs_nsec: 98591873376 wd_nsec: 98591875614
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10471 ticks this GP) idle=d604/1/0x4000000000000000 softirq=115358/115359 fqs=4372
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1069810          4            0
rcu: 	cputime:    32581      19897           44   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=90617 q=2790 ncpus=2)
CPU: 1 UID: 0 PID: 25466 Comm: syz.5.5821 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:is_bpf_text_address+0x138/0x2b0
Code: 2c 5b 48 f7 dd 4d 8d 24 2f 49 81 c4 e0 fd ff ff 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 3c 52 58 00 4d 8b 24 24 <4c> 89 e7 4c 89 f6 e8 7d b2 f0 ff 4d 39 f4 76 0c e8 13 b0 f0 ff b8
RSP: 0018:ffffc90000a08630 EFLAGS: 00000246
RAX: 1ffff1102eb1b441 RBX: 0000000000000000 RCX: ffff8881ba6e0000
RDX: 0000000000000100 RSI: ffffffff8be74060 RDI: ffffffff8be74020
RBP: 0000000000000000 R08: ffffffff81d1e6b6 R09: ffffffff8e35a3a0
R10: ffffc90000a08718 R11: ffffffff81ae5bd0 R12: ffffffffa00025d0
R13: dffffc0000000000 R14: 00007f8010d9acb9 R15: ffff8881758da428
FS:  00007f8011bed6c0(0000) GS:ffff8882a9928000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055665a8f7758 CR3: 0000000175c3a000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 kernel_text_address+0xa5/0xe0
 __kernel_text_address+0xd/0x30
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfb/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x427/0x6f0
 __alloc_skb+0x1d7/0x390
 ndisc_alloc_skb+0x9f/0x480
 ndisc_send_rs+0x2b5/0x630
 addrconf_rs_timer+0x395/0x6d0
 call_timer_fn+0x192/0x5a0
 __run_timer_base+0x652/0x8b0
 run_timer_softirq+0xb7/0x170
 handle_softirqs+0x22a/0x7c0
 __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:preempt_schedule_irq+0x48/0xa0
Code: 49 be 00 00 00 00 00 fc ff df eb 09 48 f7 03 10 00 00 00 74 53 bf 01 00 00 00 e8 83 e2 17 f6 e8 9e 6a 50 f6 fb bf 01 00 00 00 <e8> e3 a9 ff ff 9c 58 fa a9 00 02 00 00 74 05 e8 24 6c 50 f6 bf 01
RSP: 0018:ffffc90007eb73d0 EFLAGS: 00000206
RAX: 0000000000022b17 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8dad37f0 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff8fced877 R09: 1ffffffff1f9db0e
R10: dffffc0000000000 R11: fffffbfff1f9db0f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 irqentry_exit+0x597/0x620
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:its_return_thunk+0x0/0x10
Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc <c3> cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e9 5b a0 b7 f5 cc
RSP: 0018:ffffc90007eb74f0 EFLAGS: 00000287
RAX: ffffffff8235d19f RBX: 000000000010fd2d RCX: 0000000000080000
RDX: ffffc90029a9b000 RSI: 0000000000001a59 RDI: 0000000000001a5a
RBP: dffffc0000000000 R08: ffffffff8235daaa R09: ffffffff8e35a3a0
R10: dffffc0000000000 R11: ffffed10373c1b38 R12: 000000000010fd2d
R13: 000000000010fd2d R14: 0000000000000000 R15: 0000000000000000
 page_ext_lookup+0x15f/0x180
 __page_table_check_zero+0x135/0x3e0
 __free_frozen_pages+0xbbf/0xd10
 __kasan_populate_vmalloc+0x137/0x1d0
 alloc_vmap_area+0xdbc/0x14a0
 __get_vm_area_node+0x1f8/0x300
 __vmalloc_node_range_noprof+0x372/0x1730
 __vmalloc_noprof+0xd2/0x120
 bpf_prog_alloc_no_stats+0x4a/0x4f0
 bpf_prog_alloc+0x3c/0x1a0
 bpf_prog_load+0x7ba/0x1ae0
 __sys_bpf+0x618/0x950
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8010d9acb9
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:00007f8011bed028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f8011016090 RCX: 00007f8010d9acb9
RDX: 0000000000000094 RSI: 0000200000000f80 RDI: 0000000000000005
RBP: 00007f8010e08bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8011016128 R14: 00007f8011016090 R15: 00007ffe0aa41b98
 </TASK>
sched: DL replenish lagged too much
