9]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  367.030726]  ? trace_hardirqs_on+0xbd/0x310
[  367.035059]  ? kasan_check_read+0x11/0x20
[  367.039200]  ? finish_task_switch+0x1f4/0x910
[  367.043684]  ? trace_hardirqs_off_caller+0x310/0x310
[  367.048783]  ? compat_start_thread+0x80/0x80
[  367.053477]  ? pvclock_read_flags+0x160/0x160
[  367.057959]  ? __switch_to_asm+0x34/0x70
[  367.062013]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.067542]  ? check_preemption_disabled+0x48/0x280
[  367.072558]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  367.078088]  ? rcu_pm_notify+0xc0/0xc0
[  367.081965]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.087494]  ? check_preemption_disabled+0x48/0x280
[  367.092505]  run_timer_softirq+0x52/0xb0
[  367.096561]  ? rcu_read_lock_sched_held+0x14f/0x180
[  367.101573]  __do_softirq+0x308/0xb7e
[  367.105382]  ? trace_hardirqs_on_caller+0xc0/0x310
[  367.110321]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  367.115419]  ? trace_hardirqs_on+0x310/0x310
[  367.119825]  ? schedule+0x108/0x460
[  367.123451]  ? trace_hardirqs_off+0xb8/0x310
[  367.127853]  ? smpboot_thread_fn+0x68b/0xa00
[  367.132251]  ? trace_hardirqs_on+0x310/0x310
[  367.136655]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.142192]  ? check_preemption_disabled+0x48/0x280
[  367.147203]  ? takeover_tasklets+0xa90/0xa90
[  367.151602]  run_ksoftirqd+0x5e/0x100
[  367.155735]  smpboot_thread_fn+0x68b/0xa00
[  367.159966]  ? sort_range+0x30/0x30
[  367.163584]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  367.168682]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.174210]  ? __kthread_parkme+0xfb/0x1a0
[  367.178442]  ? sort_range+0x30/0x30
[  367.182059]  kthread+0x35a/0x440
[  367.185419]  ? kthread_stop+0x900/0x900
[  367.189397]  ret_from_fork+0x3a/0x50
[  367.193122] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  367.193202] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  367.200038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  367.200045] Call Trace:
[  367.206608] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  367.215853]  <IRQ>
[  367.218418] ksoftirqd/0 cpuset=/ mems_allowed=0
[  367.228716]  dump_stack+0x244/0x39d
[  367.239097]  ? dump_stack_print_info.cold.1+0x20/0x20
[  367.244309]  warn_alloc.cold.116+0xb7/0x1bd
[  367.248625]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  367.254444]  ? lock_downgrade+0x900/0x900
[  367.258590]  ? trace_hardirqs_off+0xb8/0x310
[  367.262989]  ? trace_hardirqs_off+0xb8/0x310
[  367.267397]  __alloc_pages_slowpath+0x26e8/0x2e10
[  367.272259]  ? warn_alloc+0x120/0x120
[  367.276054]  ? print_usage_bug+0xc0/0xc0
[  367.280110]  ? warn_alloc+0x120/0x120
[  367.283908]  ? warn_alloc+0x120/0x120
[  367.287718]  ? print_usage_bug+0xc0/0xc0
[  367.291860]  ? kvm_clock_read+0x18/0x30
[  367.295828]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  367.300860]  ? print_usage_bug+0xc0/0xc0
[  367.304915]  ? __lock_acquire+0x62f/0x4c20
[  367.309152]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.314677]  ? should_fail+0x22d/0xd01
[  367.318577]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.323849]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  367.328958]  ? __lock_acquire+0x62f/0x4c20
[  367.333190]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  367.338283]  ? __lock_acquire+0x62f/0x4c20
[  367.342595]  ? should_fail+0x22d/0xd01
[  367.346473]  ? rcu_irq_exit+0x1a2/0x390
[  367.350450]  ? mark_held_locks+0x130/0x130
[  367.355407]  ? mark_held_locks+0x130/0x130
[  367.359734]  ? mark_held_locks+0xc7/0x130
[  367.363878]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  367.368904]  ? zap_class+0x640/0x640
[  367.372613]  ? print_usage_bug+0xc0/0xc0
[  367.376673]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.382205]  ? check_preemption_disabled+0x48/0x280
[  367.387220]  ? __lock_is_held+0xb5/0x140
[  367.391276]  __alloc_pages_nodemask+0xa80/0xde0
[  367.396021]  ? zap_class+0x640/0x640
[  367.399730]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  367.404752]  ? find_held_lock+0x36/0x1c0
[  367.408809]  ? ____cache_alloc_node+0x1c7/0x1e0
[  367.413468]  ? lock_downgrade+0x900/0x900
[  367.417611]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.423144]  cache_grow_begin+0xa5/0x8c0
[  367.427194]  ? do_raw_spin_unlock+0xa7/0x330
[  367.431602]  fallback_alloc+0x204/0x2e0
[  367.435571]  ____cache_alloc_node+0x1c7/0x1e0
[  367.440060]  kmem_cache_alloc_node+0xe3/0x730
[  367.444549]  ? ipv6_get_ifaddr+0x42e/0x620
[  367.448787]  __alloc_skb+0x119/0x770
[  367.452491]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.458520]  ? netdev_alloc_frag+0x1f0/0x1f0
[  367.462917]  ? lock_downgrade+0x900/0x900
[  367.467067]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.472595]  ? refcount_sub_and_test_checked+0x203/0x310
[  367.478129]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  367.483599]  ? addrconf_rs_timer+0x690/0x690
[  367.488013]  ndisc_alloc_skb+0x144/0x340
[  367.492070]  ndisc_send_rs+0x331/0x6e0
[  367.495953]  addrconf_rs_timer+0x314/0x690
[  367.500179]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.504437]  call_timer_fn+0x272/0x920
[  367.508317]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.512552]  ? process_timeout+0x40/0x40
[  367.516631]  ? mark_held_locks+0xc7/0x130
[  367.520773]  ? _raw_spin_unlock_irq+0x27/0x80
[  367.525382]  ? _raw_spin_unlock_irq+0x27/0x80
[  367.529871]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.534102]  ? lockdep_hardirqs_on+0x296/0x5b0
[  367.538678]  ? trace_hardirqs_on+0xbd/0x310
[  367.542992]  ? kasan_check_read+0x11/0x20
[  367.547134]  ? __run_timers+0x7da/0xc70
[  367.551115]  ? trace_hardirqs_off_caller+0x310/0x310
[  367.556952]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.561188]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.565410]  __run_timers+0x7e5/0xc70
[  367.569226]  ? timer_fixup_init+0x70/0x70
[  367.573374]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  367.578386]  ? zap_class+0x640/0x640
[  367.582094]  ? print_usage_bug+0xc0/0xc0
[  367.586148]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  367.591358]  ? find_held_lock+0x36/0x1c0
[  367.595415]  ? zap_class+0x640/0x640
[  367.599133]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.604668]  ? check_preemption_disabled+0x48/0x280
[  367.609687]  ? __lock_is_held+0xb5/0x140
[  367.613747]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.619277]  ? check_preemption_disabled+0x48/0x280
[  367.624288]  run_timer_softirq+0x52/0xb0
[  367.628352]  ? rcu_read_lock_sched_held+0x14f/0x180
[  367.633365]  __do_softirq+0x308/0xb7e
[  367.637163]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  367.641649]  ? lock_downgrade+0x900/0x900
[  367.645792]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  367.650899]  ? pvclock_read_flags+0x160/0x160
[  367.656350]  ? lapic_next_event+0x5a/0x90
[  367.660497]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.666029]  ? kvm_clock_read+0x18/0x30
[  367.669993]  ? kvm_sched_clock_read+0x9/0x20
[  367.674399]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.679928]  ? check_preemption_disabled+0x48/0x280
[  367.684945]  irq_exit+0x17f/0x1c0
[  367.688396]  smp_apic_timer_interrupt+0x1cb/0x760
[  367.693316]  ? smp_reschedule_interrupt+0x109/0x650
[  367.698338]  ? smp_call_function_single_interrupt+0x650/0x650
[  367.704222]  ? interrupt_entry+0xb5/0xc0
[  367.708279]  ? trace_hardirqs_off_caller+0xbb/0x310
[  367.713290]  ? trace_hardirqs_off_caller+0xbb/0x310
[  367.718300]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  367.723147]  ? trace_hardirqs_on_caller+0x310/0x310
[  367.728157]  ? trace_hardirqs_on_caller+0x310/0x310
[  367.733181]  ? task_prio+0x50/0x50
[  367.736717]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.742253]  ? check_preemption_disabled+0x48/0x280
[  367.747265]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  367.752122]  apic_timer_interrupt+0xf/0x20
[  367.756789]  </IRQ>
[  367.759020] RIP: 0010:dump_stack+0x358/0x39d
[  367.763742] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  367.782640] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  367.790343] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  367.797603] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  367.804861] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  367.812122] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  367.819383] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  367.826666]  ? dump_stack+0x34f/0x39d
[  367.830473]  ? dump_stack_print_info.cold.1+0x20/0x20
[  367.835658]  ? mark_held_locks+0x130/0x130
[  367.839883]  ? mark_held_locks+0x130/0x130
[  367.844119]  dump_header+0x27b/0xf72
[  367.847844]  ? pagefault_out_of_memory+0x197/0x197
[  367.853726]  ? __lock_acquire+0x62f/0x4c20
[  367.857970]  ? percpu_ref_get_many+0x240/0x240
[  367.862547]  ? print_usage_bug+0xc0/0xc0
[  367.866607]  ? zap_class+0x640/0x640
[  367.870323]  ? print_usage_bug+0xc0/0xc0
[  367.874380]  ? print_usage_bug+0xc0/0xc0
[  367.878434]  ? zap_class+0x640/0x640
[  367.882145]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.887679]  ? find_held_lock+0x36/0x1c0
[  367.891746]  ? mark_held_locks+0xc7/0x130
[  367.895892]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  367.900991]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  367.906091]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  367.910670]  ? trace_hardirqs_on+0xbd/0x310
[  367.914988]  ? kasan_check_read+0x11/0x20
[  367.919125]  ? ___ratelimit+0x3b4/0x672
[  367.923095]  ? trace_hardirqs_off_caller+0x310/0x310
[  367.928191]  ? trace_hardirqs_on+0x310/0x310
[  367.933084]  ? lock_downgrade+0x900/0x900
[  367.937231]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  367.942336]  ? ___ratelimit+0x3b9/0x672
[  367.946303]  ? idr_get_free+0xf70/0xf70
[  367.950280]  ? find_held_lock+0x36/0x1c0
[  367.955104]  oom_kill_process.cold.27+0x10/0x903
[  367.959862]  ? zap_class+0x640/0x640
[  367.963571]  ? check_preemption_disabled+0x48/0x280
[  367.968587]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  367.973509]  ? kasan_check_read+0x11/0x20
[  367.977649]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.982917]  ? oom_evaluate_task+0x540/0x540
[  367.987331]  ? find_held_lock+0x36/0x1c0
[  367.991390]  ? out_of_memory+0x974/0x1430
[  367.995534]  ? lock_downgrade+0x900/0x900
[  367.999678]  ? check_preemption_disabled+0x48/0x280
[  368.004686]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  368.009697]  ? kasan_check_read+0x11/0x20
[  368.013842]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.019107]  ? rcu_softirq_qs+0x20/0x20
[  368.023101]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.028629]  ? oom_evaluate_task+0x302/0x540
[  368.033037]  out_of_memory+0xa84/0x1430
[  368.037014]  ? oom_killer_disable+0x3a0/0x3a0
[  368.041503]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  368.046426]  ? __ww_mutex_check_waiters+0x160/0x160
[  368.051444]  __alloc_pages_slowpath+0x2354/0x2e10
[  368.056727]  ? warn_alloc+0x120/0x120
[  368.060519]  ? mark_held_locks+0x130/0x130
[  368.064751]  ? find_get_entry+0xaae/0x1120
[  368.068988]  ? filemap_map_pages+0x1a20/0x1a20
[  368.073566]  ? zap_class+0x640/0x640
[  368.077277]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.082816]  ? check_preemption_disabled+0x48/0x280
[  368.087838]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.093388]  ? should_fail+0x22d/0xd01
[  368.097272]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  368.102381]  ? zap_class+0x640/0x640
[  368.106110]  ? __lock_is_held+0xb5/0x140
[  368.110172]  ? mark_held_locks+0x130/0x130
[  368.114406]  ? lock_release+0xa00/0xa00
[  368.118375]  ? perf_trace_sched_process_exec+0x860/0x860
[  368.123823]  ? xa_load+0x2ba/0x460
[  368.127358]  ? lock_downgrade+0x900/0x900
[  368.131503]  ? __might_sleep+0x95/0x190
[  368.135476]  __alloc_pages_nodemask+0xa80/0xde0
[  368.140141]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  368.145182]  ? __page_cache_alloc+0x191/0x5c0
[  368.149666]  ? xa_load+0x2e1/0x460
[  368.153962]  ? xa_clear_mark+0x40/0x40
[  368.157843]  ? zap_class+0x640/0x640
[  368.161557]  ? zap_class+0x640/0x640
[  368.165262]  ? zap_class+0x640/0x640
[  368.168969]  ? __do_page_cache_readahead+0x663/0x810
[  368.174071]  ? find_held_lock+0x36/0x1c0
[  368.178133]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  368.183672]  alloc_pages_current+0x173/0x350
[  368.188077]  __page_cache_alloc+0x38c/0x5c0
[  368.192393]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  368.197322]  ? kasan_check_read+0x11/0x20
[  368.201463]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.206821]  ? generic_perform_write+0x6a0/0x6a0
[  368.211573]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.217101]  ? check_preemption_disabled+0x48/0x280
[  368.222115]  filemap_fault+0x1595/0x25f0
[  368.226182]  ? __lock_page_or_retry+0xa00/0xa00
[  368.230848]  ? mark_held_locks+0x130/0x130
[  368.235084]  ? filemap_map_pages+0xd6b/0x1a20
[  368.239572]  ? lock_downgrade+0x900/0x900
[  368.243709]  ? check_preemption_disabled+0x48/0x280
[  368.248721]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  368.254387]  ? kasan_check_read+0x11/0x20
[  368.258525]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.263795]  ? rcu_softirq_qs+0x20/0x20
[  368.267796]  ? filemap_map_pages+0xd92/0x1a20
[  368.272313]  ? find_get_entries_tag+0x1400/0x1400
[  368.277157]  ? debug_object_destroy+0x2b0/0x2b0
[  368.281827]  ? lock_pi_update_atomic+0x150/0x150
[  368.286577]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.292117]  ? lock_acquire+0x1ed/0x520
[  368.296085]  ? ext4_filemap_fault+0x7a/0xad
[  368.300407]  ? lock_release+0xa00/0xa00
[  368.304377]  ? perf_trace_sched_process_exec+0x860/0x860
[  368.309823]  ? print_usage_bug+0xc0/0xc0
[  368.313880]  ? print_usage_bug+0xc0/0xc0
[  368.317943]  ? down_read+0x8d/0x120
[  368.321565]  ? ext4_filemap_fault+0x7a/0xad
[  368.325884]  ? __down_interruptible+0x700/0x700
[  368.330663]  ext4_filemap_fault+0x82/0xad
[  368.334811]  __do_fault+0x100/0x6b0
[  368.338439]  ? pmd_devmap_trans_unstable+0x220/0x220
[  368.343539]  ? mark_held_locks+0x130/0x130
[  368.347768]  ? mark_held_locks+0x130/0x130
[  368.351999]  ? do_raw_spin_trylock+0x270/0x270
[  368.357508]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.363043]  __handle_mm_fault+0x3ea0/0x5be0
[  368.367444]  ? perf_trace_lock+0x7a0/0x7a0
[  368.371695]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  368.376537]  ? __switch_to_asm+0x34/0x70
[  368.380589]  ? __switch_to_asm+0x34/0x70
[  368.384658]  ? zap_class+0x640/0x640
[  368.388368]  ? zap_class+0x640/0x640
[  368.392072]  ? __x64_sys_futex+0x53e/0x6a0
[  368.396314]  ? find_held_lock+0x36/0x1c0
[  368.400380]  ? handle_mm_fault+0x42a/0xc70
[  368.404612]  ? lock_downgrade+0x900/0x900
[  368.408756]  ? check_preemption_disabled+0x48/0x280
[  368.413770]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  368.418698]  ? kasan_check_read+0x11/0x20
[  368.422838]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.428105]  ? rcu_softirq_qs+0x20/0x20
[  368.432247]  ? trace_hardirqs_off_caller+0x310/0x310
[  368.437345]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.442871]  ? check_preemption_disabled+0x48/0x280
[  368.447892]  handle_mm_fault+0x54f/0xc70
[  368.451950]  ? __handle_mm_fault+0x5be0/0x5be0
[  368.457331]  ? find_vma+0x34/0x190
[  368.460870]  __do_page_fault+0x5e8/0xe60
[  368.464921]  ? trace_hardirqs_off+0xb8/0x310
[  368.469331]  do_page_fault+0xf2/0x7e0
[  368.473129]  ? vmalloc_sync_all+0x30/0x30
[  368.477272]  ? error_entry+0x70/0xd0
[  368.480987]  ? trace_hardirqs_off_caller+0xbb/0x310
[  368.486102]  ? trace_hardirqs_on_caller+0xc0/0x310
[  368.491029]  ? syscall_return_slowpath+0x5e0/0x5e0
[  368.495949]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.500787]  ? trace_hardirqs_on_caller+0x310/0x310
[  368.505804]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  368.511264]  ? prepare_exit_to_usermode+0x291/0x3b0
[  368.516364]  ? page_fault+0x8/0x30
[  368.520004]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.524841]  ? page_fault+0x8/0x30
[  368.528379]  page_fault+0x1e/0x30
[  368.531824] RIP: 0033:0x45ddf3
[  368.535025] Code: Bad RIP value.
[  368.538382] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  368.543735] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  368.550997] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  368.559050] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  368.566310] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  368.573570] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  368.580851] warn_alloc_show_mem: 1 callbacks suppressed
[  368.580860] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  368.580861] Mem-Info:
[  368.580892] active_anon:54141 inactive_anon:292 isolated_anon:0
[  368.580892]  active_file:12 inactive_file:13 isolated_file:0
[  368.580892]  unevictable:0 dirty:0 writeback:0 unstable:0
[  368.580892]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  368.580892]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  368.580892]  free:13705 free_pcp:178 free_cma:0
[  368.586225] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  368.592971] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  368.595358] Call Trace:
[  368.628214] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  368.637591]  dump_stack+0x244/0x39d
[  368.665976] lowmem_reserve[]: 0 2818 6321 6321
[  368.668561]  ? dump_stack_print_info.cold.1+0x20/0x20
[  368.694632] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  368.698256]  warn_alloc.cold.116+0xb7/0x1bd
[  368.702798] lowmem_reserve[]: 0 0 3503 3503
[  368.707973]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  368.735438] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  368.739750]  ? lock_downgrade+0x900/0x900
[  368.744038] lowmem_reserve[]: 0 0 0 0
[  368.748873]  ? trace_hardirqs_off+0xb8/0x310
[  368.778560] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  368.782700]  ? trace_hardirqs_off+0xb8/0x310
[  368.786463] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  368.790862]  __alloc_pages_slowpath+0x26e8/0x2e10
[  368.804350] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  368.808767]  ? warn_alloc+0x120/0x120
[  368.823982] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  368.828805]  ? print_usage_bug+0xc0/0xc0
[  368.843091] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  368.846868]  ? warn_alloc+0x120/0x120
[  368.856426] 366 total pagecache pages
[  368.860473]  ? warn_alloc+0x120/0x120
[  368.869022] 0 pages in swap cache
[  368.872801]  ? print_usage_bug+0xc0/0xc0
[  368.876572] Swap cache stats: add 0, delete 0, find 0/0
[  368.880353]  ? print_usage_bug+0xc0/0xc0
[  368.883780] Free swap  = 0kB
[  368.887825]  ? __lock_acquire+0x62f/0x4c20
[  368.893154] Total swap = 0kB
[  368.893162] 1965979 pages RAM
[  368.897211]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.900199] 0 pages HighMem/MovableOnly
[  368.904419]  ? should_fail+0x22d/0xd01
[  368.907408] 342854 pages reserved
[  368.910512]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  368.916018] 0 pages cma reserved
[  368.919974]  ? __lock_acquire+0x62f/0x4c20
[  368.923910] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  368.927277]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  368.932418] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  368.935696]  ? __lock_acquire+0x62f/0x4c20
[  368.939898] syz-fuzzer cpuset=/ mems_allowed=0
[  368.946379]  ? should_fail+0x22d/0xd01
[  368.974547]  ? find_held_lock+0x36/0x1c0
[  368.978607]  ? mark_held_locks+0x130/0x130
[  368.982856]  ? mark_held_locks+0x130/0x130
[  368.987078]  ? zap_class+0x640/0x640
[  368.990787]  ? mark_held_locks+0xc7/0x130
[  368.994928]  ? do_raw_spin_unlock+0xa7/0x330
[  368.999345]  ? zap_class+0x640/0x640
[  369.003053]  ? print_usage_bug+0xc0/0xc0
[  369.007109]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.012646]  ? check_preemption_disabled+0x48/0x280
[  369.017665]  ? __lock_is_held+0xb5/0x140
[  369.021737]  __alloc_pages_nodemask+0xa80/0xde0
[  369.026402]  ? zap_class+0x640/0x640
[  369.030112]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  369.035130]  ? find_held_lock+0x36/0x1c0
[  369.039192]  ? ____cache_alloc_node+0x1c7/0x1e0
[  369.043860]  ? lock_downgrade+0x900/0x900
[  369.048011]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.053878]  cache_grow_begin+0xa5/0x8c0
[  369.057940]  ? do_raw_spin_unlock+0xa7/0x330
[  369.062357]  fallback_alloc+0x204/0x2e0
[  369.066328]  ____cache_alloc_node+0x1c7/0x1e0
[  369.070819]  kmem_cache_alloc_node+0xe3/0x730
[  369.075308]  ? ipv6_get_ifaddr+0x42e/0x620
[  369.079545]  __alloc_skb+0x119/0x770
[  369.083263]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.088537]  ? netdev_alloc_frag+0x1f0/0x1f0
[  369.092943]  ? lock_downgrade+0x900/0x900
[  369.097094]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.102726]  ? refcount_sub_and_test_checked+0x203/0x310
[  369.108171]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  369.113613]  ? addrconf_rs_timer+0x690/0x690
[  369.118025]  ndisc_alloc_skb+0x144/0x340
[  369.122085]  ndisc_send_rs+0x331/0x6e0
[  369.125971]  addrconf_rs_timer+0x314/0x690
[  369.130201]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.134436]  call_timer_fn+0x272/0x920
[  369.138318]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.142560]  ? process_timeout+0x40/0x40
[  369.146619]  ? __run_timers+0x7da/0xc70
[  369.150589]  ? _raw_spin_unlock_irq+0x27/0x80
[  369.155444]  ? _raw_spin_unlock_irq+0x27/0x80
[  369.159929]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.164155]  ? lockdep_hardirqs_on+0x296/0x5b0
[  369.168732]  ? trace_hardirqs_on+0xbd/0x310
[  369.173047]  ? kasan_check_read+0x11/0x20
[  369.177186]  ? __run_timers+0x7da/0xc70
[  369.181154]  ? trace_hardirqs_off_caller+0x310/0x310
[  369.186265]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.190502]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.194727]  __run_timers+0x7e5/0xc70
[  369.198530]  ? timer_fixup_init+0x70/0x70
[  369.202667]  ? _raw_spin_unlock_irq+0x27/0x80
[  369.207152]  ? _raw_spin_unlock_irq+0x27/0x80
[  369.211644]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  369.216222]  ? trace_hardirqs_on+0xbd/0x310
[  369.220548]  ? kasan_check_read+0x11/0x20
[  369.224690]  ? finish_task_switch+0x1f4/0x910
[  369.229195]  ? trace_hardirqs_off_caller+0x310/0x310
[  369.234295]  ? compat_start_thread+0x80/0x80
[  369.238714]  ? pvclock_read_flags+0x160/0x160
[  369.243203]  ? __switch_to_asm+0x34/0x70
[  369.247267]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.253047]  ? check_preemption_disabled+0x48/0x280
[  369.258060]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  369.263591]  ? rcu_pm_notify+0xc0/0xc0
[  369.267495]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.273024]  ? check_preemption_disabled+0x48/0x280
[  369.278034]  run_timer_softirq+0x52/0xb0
[  369.282084]  ? rcu_read_lock_sched_held+0x14f/0x180
[  369.287095]  __do_softirq+0x308/0xb7e
[  369.290894]  ? trace_hardirqs_on_caller+0xc0/0x310
[  369.295822]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  369.300920]  ? trace_hardirqs_on+0x310/0x310
[  369.305325]  ? schedule+0x108/0x460
[  369.308956]  ? trace_hardirqs_off+0xb8/0x310
[  369.313359]  ? smpboot_thread_fn+0x68b/0xa00
[  369.317760]  ? trace_hardirqs_on+0x310/0x310
[  369.322162]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.327696]  ? check_preemption_disabled+0x48/0x280
[  369.332712]  ? takeover_tasklets+0xa90/0xa90
[  369.337114]  run_ksoftirqd+0x5e/0x100
[  369.340907]  smpboot_thread_fn+0x68b/0xa00
[  369.345147]  ? sort_range+0x30/0x30
[  369.348764]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  369.354201]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.359746]  ? __kthread_parkme+0xfb/0x1a0
[  369.363975]  ? sort_range+0x30/0x30
[  369.367592]  kthread+0x35a/0x440
[  369.370952]  ? kthread_stop+0x900/0x900
[  369.374923]  ret_from_fork+0x3a/0x50
[  369.378646] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  369.378710] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  369.385563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  369.385568] Call Trace:
[  369.385574]  <IRQ>
[  369.385590]  dump_stack+0x244/0x39d
[  369.385608]  ? dump_stack_print_info.cold.1+0x20/0x20
[  369.392285] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  369.401431]  warn_alloc.cold.116+0xb7/0x1bd
[  369.403981] ksoftirqd/0 cpuset=/ mems_allowed=0
[  369.406119]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  369.438978]  ? lock_downgrade+0x900/0x900
[  369.443130]  ? trace_hardirqs_off+0xb8/0x310
[  369.447534]  ? trace_hardirqs_off+0xb8/0x310
[  369.451946]  __alloc_pages_slowpath+0x26e8/0x2e10
[  369.457608]  ? warn_alloc+0x120/0x120
[  369.461406]  ? print_usage_bug+0xc0/0xc0
[  369.465462]  ? warn_alloc+0x120/0x120
[  369.469273]  ? warn_alloc+0x120/0x120
[  369.473067]  ? print_usage_bug+0xc0/0xc0
[  369.477125]  ? kvm_clock_read+0x18/0x30
[  369.481095]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  369.486103]  ? print_usage_bug+0xc0/0xc0
[  369.490156]  ? __lock_acquire+0x62f/0x4c20
[  369.494389]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.499929]  ? should_fail+0x22d/0xd01
[  369.503814]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.509085]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  369.514180]  ? __lock_acquire+0x62f/0x4c20
[  369.518417]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  369.523515]  ? __lock_acquire+0x62f/0x4c20
[  369.527750]  ? should_fail+0x22d/0xd01
[  369.531629]  ? rcu_irq_exit+0x1a2/0x390
[  369.535605]  ? mark_held_locks+0x130/0x130
[  369.539840]  ? mark_held_locks+0x130/0x130
[  369.544073]  ? mark_held_locks+0xc7/0x130
[  369.548221]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  369.554039]  ? zap_class+0x640/0x640
[  369.557752]  ? print_usage_bug+0xc0/0xc0
[  369.561829]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.567361]  ? check_preemption_disabled+0x48/0x280
[  369.572388]  ? __lock_is_held+0xb5/0x140
[  369.576465]  __alloc_pages_nodemask+0xa80/0xde0
[  369.581129]  ? zap_class+0x640/0x640
[  369.584838]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  369.589857]  ? find_held_lock+0x36/0x1c0
[  369.593924]  ? ____cache_alloc_node+0x1c7/0x1e0
[  369.598587]  ? lock_downgrade+0x900/0x900
[  369.602739]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.608275]  cache_grow_begin+0xa5/0x8c0
[  369.612329]  ? do_raw_spin_unlock+0xa7/0x330
[  369.616745]  fallback_alloc+0x204/0x2e0
[  369.620725]  ____cache_alloc_node+0x1c7/0x1e0
[  369.625225]  kmem_cache_alloc_node+0xe3/0x730
[  369.629724]  ? ipv6_get_ifaddr+0x42e/0x620
[  369.633963]  __alloc_skb+0x119/0x770
[  369.637668]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.642941]  ? netdev_alloc_frag+0x1f0/0x1f0
[  369.647343]  ? lock_downgrade+0x900/0x900
[  369.651490]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.657769]  ? refcount_sub_and_test_checked+0x203/0x310
[  369.663225]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  369.668671]  ? addrconf_rs_timer+0x690/0x690
[  369.673082]  ndisc_alloc_skb+0x144/0x340
[  369.677143]  ndisc_send_rs+0x331/0x6e0
[  369.681026]  addrconf_rs_timer+0x314/0x690
[  369.685265]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.689500]  call_timer_fn+0x272/0x920
[  369.693473]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.697698]  ? process_timeout+0x40/0x40
[  369.701768]  ? mark_held_locks+0xc7/0x130
[  369.705915]  ? _raw_spin_unlock_irq+0x27/0x80
[  369.710406]  ? _raw_spin_unlock_irq+0x27/0x80
[  369.714895]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.719124]  ? lockdep_hardirqs_on+0x296/0x5b0
[  369.723700]  ? trace_hardirqs_on+0xbd/0x310
[  369.728014]  ? kasan_check_read+0x11/0x20
[  369.732154]  ? __run_timers+0x7da/0xc70
[  369.736125]  ? trace_hardirqs_off_caller+0x310/0x310
[  369.741228]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.745464]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.749694]  __run_timers+0x7e5/0xc70
[  369.754023]  ? timer_fixup_init+0x70/0x70
[  369.758167]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  369.763558]  ? zap_class+0x640/0x640
[  369.767275]  ? print_usage_bug+0xc0/0xc0
[  369.771333]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  369.776526]  ? find_held_lock+0x36/0x1c0
[  369.780584]  ? zap_class+0x640/0x640
[  369.784308]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.789840]  ? check_preemption_disabled+0x48/0x280
[  369.794861]  ? __lock_is_held+0xb5/0x140
[  369.798914]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.804445]  ? check_preemption_disabled+0x48/0x280
[  369.809460]  run_timer_softirq+0x52/0xb0
[  369.813515]  ? rcu_read_lock_sched_held+0x14f/0x180
[  369.818525]  __do_softirq+0x308/0xb7e
[  369.822330]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  369.826815]  ? lock_downgrade+0x900/0x900
[  369.830968]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  369.836072]  ? pvclock_read_flags+0x160/0x160
[  369.840561]  ? lapic_next_event+0x5a/0x90
[  369.844719]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.850258]  ? kvm_clock_read+0x18/0x30
[  369.854891]  ? kvm_sched_clock_read+0x9/0x20
[  369.859298]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.864832]  ? check_preemption_disabled+0x48/0x280
[  369.869847]  irq_exit+0x17f/0x1c0
[  369.873297]  smp_apic_timer_interrupt+0x1cb/0x760
[  369.878131]  ? smp_reschedule_interrupt+0x109/0x650
[  369.883251]  ? smp_call_function_single_interrupt+0x650/0x650
[  369.889126]  ? interrupt_entry+0xb5/0xc0
[  369.893183]  ? trace_hardirqs_off_caller+0xbb/0x310
[  369.898206]  ? trace_hardirqs_off_caller+0xbb/0x310
[  369.903218]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.908072]  ? trace_hardirqs_on_caller+0x310/0x310
[  369.913083]  ? trace_hardirqs_on_caller+0x310/0x310
[  369.918087]  ? task_prio+0x50/0x50
[  369.921618]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.927159]  ? check_preemption_disabled+0x48/0x280
[  369.932690]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.937537]  apic_timer_interrupt+0xf/0x20
[  369.941766]  </IRQ>
[  369.944001] RIP: 0010:dump_stack+0x358/0x39d
[  369.948400] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  369.968242] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  369.975942] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  369.983210] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  369.990469] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  369.997730] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  370.004994] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  370.012270]  ? dump_stack+0x34f/0x39d
[  370.016076]  ? dump_stack_print_info.cold.1+0x20/0x20
[  370.021262]  ? mark_held_locks+0x130/0x130
[  370.025491]  ? mark_held_locks+0x130/0x130
[  370.029725]  dump_header+0x27b/0xf72
[  370.033442]  ? pagefault_out_of_memory+0x197/0x197
[  370.038372]  ? __lock_acquire+0x62f/0x4c20
[  370.042602]  ? percpu_ref_get_many+0x240/0x240
[  370.047185]  ? print_usage_bug+0xc0/0xc0
[  370.051247]  ? zap_class+0x640/0x640
[  370.055750]  ? print_usage_bug+0xc0/0xc0
[  370.059799]  ? print_usage_bug+0xc0/0xc0
[  370.063858]  ? zap_class+0x640/0x640
[  370.067580]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.073114]  ? find_held_lock+0x36/0x1c0
[  370.077182]  ? mark_held_locks+0xc7/0x130
[  370.081325]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  370.086425]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  370.091522]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  370.096099]  ? trace_hardirqs_on+0xbd/0x310
[  370.100500]  ? kasan_check_read+0x11/0x20
[  370.104639]  ? ___ratelimit+0x3b4/0x672
[  370.108608]  ? trace_hardirqs_off_caller+0x310/0x310
[  370.113726]  ? trace_hardirqs_on+0x310/0x310
[  370.118132]  ? lock_downgrade+0x900/0x900
[  370.122276]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  370.127375]  ? ___ratelimit+0x3b9/0x672
[  370.131345]  ? idr_get_free+0xf70/0xf70
[  370.135312]  ? find_held_lock+0x36/0x1c0
[  370.139374]  oom_kill_process.cold.27+0x10/0x903
[  370.144123]  ? zap_class+0x640/0x640
[  370.147836]  ? check_preemption_disabled+0x48/0x280
[  370.153664]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  370.158589]  ? kasan_check_read+0x11/0x20
[  370.162759]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.168026]  ? oom_evaluate_task+0x540/0x540
[  370.172427]  ? find_held_lock+0x36/0x1c0
[  370.176490]  ? out_of_memory+0x974/0x1430
[  370.180631]  ? lock_downgrade+0x900/0x900
[  370.184774]  ? check_preemption_disabled+0x48/0x280
[  370.189785]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  370.194729]  ? kasan_check_read+0x11/0x20
[  370.198871]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.204141]  ? rcu_softirq_qs+0x20/0x20
[  370.208117]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.213646]  ? oom_evaluate_task+0x302/0x540
[  370.218054]  out_of_memory+0xa84/0x1430
[  370.222027]  ? oom_killer_disable+0x3a0/0x3a0
[  370.226514]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  370.231438]  ? __ww_mutex_check_waiters+0x160/0x160
[  370.236458]  __alloc_pages_slowpath+0x2354/0x2e10
[  370.241319]  ? warn_alloc+0x120/0x120
[  370.245112]  ? mark_held_locks+0x130/0x130
[  370.249345]  ? find_get_entry+0xaae/0x1120
[  370.254522]  ? filemap_map_pages+0x1a20/0x1a20
[  370.259112]  ? zap_class+0x640/0x640
[  370.262824]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.268360]  ? check_preemption_disabled+0x48/0x280
[  370.273375]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.278911]  ? should_fail+0x22d/0xd01
[  370.282795]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  370.287892]  ? zap_class+0x640/0x640
[  370.291623]  ? __lock_is_held+0xb5/0x140
[  370.295695]  ? mark_held_locks+0x130/0x130
[  370.299924]  ? lock_release+0xa00/0xa00
[  370.303897]  ? perf_trace_sched_process_exec+0x860/0x860
[  370.309341]  ? xa_load+0x2ba/0x460
[  370.312876]  ? lock_downgrade+0x900/0x900
[  370.317022]  ? __might_sleep+0x95/0x190
[  370.320993]  __alloc_pages_nodemask+0xa80/0xde0
[  370.325660]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  370.330679]  ? __page_cache_alloc+0x191/0x5c0
[  370.335173]  ? xa_load+0x2e1/0x460
[  370.338708]  ? xa_clear_mark+0x40/0x40
[  370.342591]  ? zap_class+0x640/0x640
[  370.346307]  ? zap_class+0x640/0x640
[  370.350012]  ? zap_class+0x640/0x640
[  370.354528]  ? __do_page_cache_readahead+0x663/0x810
[  370.359630]  ? find_held_lock+0x36/0x1c0
[  370.363695]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  370.369321]  alloc_pages_current+0x173/0x350
[  370.373724]  __page_cache_alloc+0x38c/0x5c0
[  370.378038]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  370.382960]  ? kasan_check_read+0x11/0x20
[  370.387103]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.392377]  ? generic_perform_write+0x6a0/0x6a0
[  370.397127]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.402686]  ? check_preemption_disabled+0x48/0x280
[  370.407706]  filemap_fault+0x1595/0x25f0
[  370.411775]  ? __lock_page_or_retry+0xa00/0xa00
[  370.416439]  ? mark_held_locks+0x130/0x130
[  370.420680]  ? filemap_map_pages+0xd6b/0x1a20
[  370.425172]  ? lock_downgrade+0x900/0x900
[  370.429312]  ? check_preemption_disabled+0x48/0x280
[  370.434321]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  370.439258]  ? kasan_check_read+0x11/0x20
[  370.443396]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.448672]  ? rcu_softirq_qs+0x20/0x20
[  370.453094]  ? filemap_map_pages+0xd92/0x1a20
[  370.457591]  ? find_get_entries_tag+0x1400/0x1400
[  370.462427]  ? debug_object_destroy+0x2b0/0x2b0
[  370.467091]  ? lock_pi_update_atomic+0x150/0x150
[  370.471838]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.477384]  ? lock_acquire+0x1ed/0x520
[  370.481347]  ? ext4_filemap_fault+0x7a/0xad
[  370.485668]  ? lock_release+0xa00/0xa00
[  370.489642]  ? perf_trace_sched_process_exec+0x860/0x860
[  370.495086]  ? print_usage_bug+0xc0/0xc0
[  370.499142]  ? print_usage_bug+0xc0/0xc0
[  370.503215]  ? down_read+0x8d/0x120
[  370.506848]  ? ext4_filemap_fault+0x7a/0xad
[  370.511171]  ? __down_interruptible+0x700/0x700
[  370.515845]  ext4_filemap_fault+0x82/0xad
[  370.519987]  __do_fault+0x100/0x6b0
[  370.523630]  ? pmd_devmap_trans_unstable+0x220/0x220
[  370.528728]  ? mark_held_locks+0x130/0x130
[  370.532957]  ? mark_held_locks+0x130/0x130
[  370.537185]  ? do_raw_spin_trylock+0x270/0x270
[  370.541768]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.547305]  __handle_mm_fault+0x3ea0/0x5be0
[  370.551706]  ? perf_trace_lock+0x7a0/0x7a0
[  370.556691]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  370.561533]  ? __switch_to_asm+0x34/0x70
[  370.565587]  ? __switch_to_asm+0x34/0x70
[  370.569654]  ? zap_class+0x640/0x640
[  370.573366]  ? zap_class+0x640/0x640
[  370.577073]  ? __x64_sys_futex+0x53e/0x6a0
[  370.581302]  ? find_held_lock+0x36/0x1c0
[  370.585367]  ? handle_mm_fault+0x42a/0xc70
[  370.589596]  ? lock_downgrade+0x900/0x900
[  370.593734]  ? check_preemption_disabled+0x48/0x280
[  370.598742]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  370.603673]  ? kasan_check_read+0x11/0x20
[  370.607829]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.613097]  ? rcu_softirq_qs+0x20/0x20
[  370.617064]  ? trace_hardirqs_off_caller+0x310/0x310
[  370.622167]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.627698]  ? check_preemption_disabled+0x48/0x280
[  370.632716]  handle_mm_fault+0x54f/0xc70
[  370.636774]  ? __handle_mm_fault+0x5be0/0x5be0
[  370.641355]  ? find_vma+0x34/0x190
[  370.644896]  __do_page_fault+0x5e8/0xe60
[  370.648951]  ? trace_hardirqs_off+0xb8/0x310
[  370.654242]  do_page_fault+0xf2/0x7e0
[  370.658057]  ? vmalloc_sync_all+0x30/0x30
[  370.662215]  ? error_entry+0x70/0xd0
[  370.665926]  ? trace_hardirqs_off_caller+0xbb/0x310
[  370.670933]  ? trace_hardirqs_on_caller+0xc0/0x310
[  370.675858]  ? syscall_return_slowpath+0x5e0/0x5e0
[  370.680779]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  370.685617]  ? trace_hardirqs_on_caller+0x310/0x310
[  370.690627]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  370.696093]  ? prepare_exit_to_usermode+0x291/0x3b0
[  370.701103]  ? page_fault+0x8/0x30
[  370.704649]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  370.709497]  ? page_fault+0x8/0x30
[  370.713030]  page_fault+0x1e/0x30
[  370.716484] RIP: 0033:0x45ddf3
[  370.719693] Code: Bad RIP value.
[  370.723050] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  370.728404] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  370.735673] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  370.742943] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  370.750205] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  370.758207] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  370.765484] warn_alloc_show_mem: 1 callbacks suppressed
[  370.765493] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  370.765494] Mem-Info:
[  370.765523] active_anon:54141 inactive_anon:292 isolated_anon:0
[  370.765523]  active_file:12 inactive_file:13 isolated_file:0
[  370.765523]  unevictable:0 dirty:0 writeback:0 unstable:0
[  370.765523]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  370.765523]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  370.765523]  free:13705 free_pcp:178 free_cma:0
[  370.770855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  370.777611] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  370.779996] Call Trace:
[  370.812850] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  370.822197]  dump_stack+0x244/0x39d
[  370.849830] lowmem_reserve[]: 0 2818 6321 6321
[  370.852676]  ? dump_stack_print_info.cold.1+0x20/0x20
[  370.852693]  warn_alloc.cold.116+0xb7/0x1bd
[  370.852702]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  370.852713]  ? lock_downgrade+0x900/0x900
[  370.852725]  ? trace_hardirqs_off+0xb8/0x310
[  370.852737]  ? trace_hardirqs_off+0xb8/0x310
[  370.852749]  __alloc_pages_slowpath+0x26e8/0x2e10
[  370.852772]  ? warn_alloc+0x120/0x120
[  370.852783]  ? warn_alloc+0x120/0x120
[  370.852793]  ? warn_alloc+0x120/0x120
[  370.852802]  ? print_usage_bug+0xc0/0xc0
[  370.852809]  ? print_usage_bug+0xc0/0xc0
[  370.852819]  ? print_usage_bug+0xc0/0xc0
[  370.852827]  ? kasan_check_read+0x11/0x20
[  370.852836]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.852843]  ? rcu_softirq_qs+0x20/0x20
[  370.852855]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.852865]  ? should_fail+0x22d/0xd01
[  370.852875]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  370.852884]  ? __lock_acquire+0x62f/0x4c20
[  370.852894]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  370.852901]  ? __lock_acquire+0x62f/0x4c20
[  370.852908]  ? should_fail+0x22d/0xd01
[  370.852921]  ? mark_held_locks+0x130/0x130
[  370.852932]  ? mark_held_locks+0x130/0x130
[  370.852940]  ? __enqueue_entity+0x10d/0x1f0
[  370.852950]  ? zap_class+0x640/0x640
[  370.852958]  ? print_usage_bug+0xc0/0xc0
[  370.852965]  ? enqueue_entity+0x34b/0x20a0
[  370.852974]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.852984]  ? check_preemption_disabled+0x48/0x280
[  370.852997]  ? __lock_is_held+0xb5/0x140
[  370.853007]  __alloc_pages_nodemask+0xa80/0xde0
[  370.853015]  ? zap_class+0x640/0x640
[  370.853026]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  370.853040]  ? find_held_lock+0x36/0x1c0
[  370.853064]  ? ____cache_alloc_node+0x1c7/0x1e0
[  370.853072]  ? lock_downgrade+0x900/0x900
[  370.853083]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.853093]  cache_grow_begin+0xa5/0x8c0
[  370.853100]  ? do_raw_spin_unlock+0xa7/0x330
[  370.853111]  fallback_alloc+0x204/0x2e0
[  370.853122]  ____cache_alloc_node+0x1c7/0x1e0
[  370.853153]  kmem_cache_alloc_node+0xe3/0x730
[  370.879226] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  370.882841]  ? ipv6_get_ifaddr+0x42e/0x620
[  370.887391] lowmem_reserve[]: 0 0 3503 3503
[  370.892575]  __alloc_skb+0x119/0x770
[  370.896861] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  370.901692]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.905814] lowmem_reserve[]: 0 0 0 0
[  370.910211]  ? netdev_alloc_frag+0x1f0/0x1f0
[  370.914585] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  370.919412]  ? lock_downgrade+0x900/0x900
[  370.923178] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  370.926972]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.930739] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  370.934789]  ? refcount_sub_and_test_checked+0x203/0x310
[  370.938821] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  370.942863]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  370.946986] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  370.952256]  ? addrconf_rs_timer+0x690/0x690
[  370.956974] 366 total pagecache pages
[  370.962505]  ndisc_alloc_skb+0x144/0x340
[  370.966364] 0 pages in swap cache
[  370.971444]  ndisc_send_rs+0x331/0x6e0
[  370.975660] Swap cache stats: add 0, delete 0, find 0/0
[  370.980750]  addrconf_rs_timer+0x314/0x690
[  370.984971] Free swap  = 0kB
[  370.988858]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.993060] Total swap = 0kB
[  370.997288]  call_timer_fn+0x272/0x920
[  371.001583] 1965979 pages RAM
[  371.005278]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.009308] 0 pages HighMem/MovableOnly
[  371.013526]  ? process_timeout+0x40/0x40
[  371.019028] 342854 pages reserved
[  371.024025]  ? __run_timers+0x7da/0xc70
[  371.028052] 0 pages cma reserved
[  371.032704]  ? _raw_spin_unlock_irq+0x27/0x80
[  371.036439] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  371.041381]  ? _raw_spin_unlock_irq+0x27/0x80
[  371.041393]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.041410]  ? lockdep_hardirqs_on+0x296/0x5b0
[  371.045492] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  371.050096]  ? trace_hardirqs_on+0xbd/0x310
[  371.055158] syz-fuzzer cpuset=/ mems_allowed=0
[  371.060683]  ? kasan_check_read+0x11/0x20
[  371.362418]  ? __run_timers+0x7da/0xc70
[  371.366389]  ? trace_hardirqs_off_caller+0x310/0x310
[  371.371495]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.375720]  __run_timers+0x7e5/0xc70
[  371.379539]  ? timer_fixup_init+0x70/0x70
[  371.383681]  ? _raw_spin_unlock_irq+0x27/0x80
[  371.388167]  ? _raw_spin_unlock_irq+0x27/0x80
[  371.392677]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  371.397255]  ? trace_hardirqs_on+0xbd/0x310
[  371.401572]  ? kasan_check_read+0x11/0x20
[  371.405713]  ? finish_task_switch+0x1f4/0x910
[  371.410201]  ? trace_hardirqs_off_caller+0x310/0x310
[  371.415300]  ? compat_start_thread+0x80/0x80
[  371.419733]  ? pvclock_read_flags+0x160/0x160
[  371.424217]  ? __switch_to_asm+0x34/0x70
[  371.428277]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.433806]  ? check_preemption_disabled+0x48/0x280
[  371.438824]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  371.444354]  ? rcu_pm_notify+0xc0/0xc0
[  371.448237]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.454048]  ? check_preemption_disabled+0x48/0x280
[  371.459060]  run_timer_softirq+0x52/0xb0
[  371.463126]  ? rcu_read_lock_sched_held+0x14f/0x180
[  371.468139]  __do_softirq+0x308/0xb7e
[  371.471935]  ? trace_hardirqs_on_caller+0xc0/0x310
[  371.476871]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  371.481966]  ? trace_hardirqs_on+0x310/0x310
[  371.486371]  ? schedule+0x108/0x460
[  371.489998]  ? trace_hardirqs_off+0xb8/0x310
[  371.494400]  ? smpboot_thread_fn+0x68b/0xa00
[  371.498797]  ? trace_hardirqs_on+0x310/0x310
[  371.503197]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.508725]  ? check_preemption_disabled+0x48/0x280
[  371.513736]  ? takeover_tasklets+0xa90/0xa90
[  371.518135]  run_ksoftirqd+0x5e/0x100
[  371.521926]  smpboot_thread_fn+0x68b/0xa00
[  371.526156]  ? sort_range+0x30/0x30
[  371.529776]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  371.534872]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.540402]  ? __kthread_parkme+0xfb/0x1a0
[  371.544662]  ? sort_range+0x30/0x30
[  371.548279]  kthread+0x35a/0x440
[  371.551644]  ? kthread_stop+0x900/0x900
[  371.555951]  ret_from_fork+0x3a/0x50
[  371.559674] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  371.559738] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  371.566591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  371.566600] Call Trace:
[  371.566606]  <IRQ>
[  371.566621]  dump_stack+0x244/0x39d
[  371.566638]  ? dump_stack_print_info.cold.1+0x20/0x20
[  371.573180] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  371.582459]  warn_alloc.cold.116+0xb7/0x1bd
[  371.585004] ksoftirqd/0 cpuset=/ mems_allowed=0
[  371.587139]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  371.619977]  ? lock_downgrade+0x900/0x900
[  371.624124]  ? trace_hardirqs_off+0xb8/0x310
[  371.628531]  ? trace_hardirqs_off+0xb8/0x310
[  371.632943]  __alloc_pages_slowpath+0x26e8/0x2e10
[  371.637809]  ? warn_alloc+0x120/0x120
[  371.641610]  ? print_usage_bug+0xc0/0xc0
[  371.645667]  ? warn_alloc+0x120/0x120
[  371.649468]  ? warn_alloc+0x120/0x120
[  371.654270]  ? print_usage_bug+0xc0/0xc0
[  371.658326]  ? print_usage_bug+0xc0/0xc0
[  371.662380]  ? __lock_acquire+0x62f/0x4c20
[  371.666627]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.672158]  ? should_fail+0x22d/0xd01
[  371.676044]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  371.681155]  ? __lock_acquire+0x62f/0x4c20
[  371.685389]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  371.690484]  ? __lock_acquire+0x62f/0x4c20
[  371.694707]  ? should_fail+0x22d/0xd01
[  371.698621]  ? find_held_lock+0x36/0x1c0
[  371.702773]  ? mark_held_locks+0x130/0x130
[  371.707012]  ? mark_held_locks+0x130/0x130
[  371.711235]  ? zap_class+0x640/0x640
[  371.714938]  ? zap_class+0x640/0x640
[  371.718661]  ? print_usage_bug+0xc0/0xc0
[  371.722723]  ? do_raw_spin_unlock+0xa7/0x330
[  371.727123]  ? zap_class+0x640/0x640
[  371.730830]  ? print_usage_bug+0xc0/0xc0
[  371.734881]  ? wq_watchdog_touch+0x9c/0xfe
[  371.739114]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.744644]  ? check_preemption_disabled+0x48/0x280
[  371.749660]  ? __lock_is_held+0xb5/0x140
[  371.754513]  __alloc_pages_nodemask+0xa80/0xde0
[  371.759175]  ? zap_class+0x640/0x640
[  371.763263]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  371.768282]  ? find_held_lock+0x36/0x1c0
[  371.772350]  ? ____cache_alloc_node+0x1c7/0x1e0
[  371.777014]  ? lock_downgrade+0x900/0x900
[  371.781164]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.786700]  cache_grow_begin+0xa5/0x8c0
[  371.790753]  ? do_raw_spin_unlock+0xa7/0x330
[  371.795159]  fallback_alloc+0x204/0x2e0
[  371.799132]  ____cache_alloc_node+0x1c7/0x1e0
[  371.803621]  kmem_cache_alloc_node+0xe3/0x730
[  371.808111]  ? ipv6_get_ifaddr+0x42e/0x620
[  371.812346]  __alloc_skb+0x119/0x770
[  371.816053]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.821335]  ? netdev_alloc_frag+0x1f0/0x1f0
[  371.825734]  ? lock_downgrade+0x900/0x900
[  371.829898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.835429]  ? refcount_sub_and_test_checked+0x203/0x310
[  371.840876]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  371.846318]  ? addrconf_rs_timer+0x690/0x690
[  371.850732]  ndisc_alloc_skb+0x144/0x340
[  371.855721]  ndisc_send_rs+0x331/0x6e0
[  371.859609]  addrconf_rs_timer+0x314/0x690
[  371.863841]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.868082]  call_timer_fn+0x272/0x920
[  371.871961]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.876193]  ? process_timeout+0x40/0x40
[  371.880260]  ? mark_held_locks+0xc7/0x130
[  371.884401]  ? _raw_spin_unlock_irq+0x27/0x80
[  371.888890]  ? _raw_spin_unlock_irq+0x27/0x80
[  371.893471]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.897717]  ? lockdep_hardirqs_on+0x296/0x5b0
[  371.902295]  ? trace_hardirqs_on+0xbd/0x310
[  371.906608]  ? kasan_check_read+0x11/0x20
[  371.910749]  ? __run_timers+0x7da/0xc70
[  371.914720]  ? trace_hardirqs_off_caller+0x310/0x310
[  371.919821]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.924052]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.928292]  __run_timers+0x7e5/0xc70
[  371.932576]  ? timer_fixup_init+0x70/0x70
[  371.936718]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  371.941725]  ? zap_class+0x640/0x640
[  371.945435]  ? print_usage_bug+0xc0/0xc0
[  371.949490]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  371.955624]  ? find_held_lock+0x36/0x1c0
[  371.959682]  ? zap_class+0x640/0x640
[  371.963393]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.968926]  ? check_preemption_disabled+0x48/0x280
[  371.973940]  ? __lock_is_held+0xb5/0x140
[  371.977992]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.983520]  ? check_preemption_disabled+0x48/0x280
[  371.988537]  run_timer_softirq+0x52/0xb0
[  371.992594]  ? rcu_read_lock_sched_held+0x14f/0x180
[  371.997601]  __do_softirq+0x308/0xb7e
[  372.001397]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  372.005881]  ? lock_downgrade+0x900/0x900
[  372.010026]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  372.015131]  ? pvclock_read_flags+0x160/0x160
[  372.019616]  ? lapic_next_event+0x5a/0x90
[  372.023755]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.029290]  ? kvm_clock_read+0x18/0x30
[  372.033258]  ? kvm_sched_clock_read+0x9/0x20
[  372.037674]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.043209]  ? check_preemption_disabled+0x48/0x280
[  372.048227]  irq_exit+0x17f/0x1c0
[  372.051679]  smp_apic_timer_interrupt+0x1cb/0x760
[  372.057257]  ? smp_reschedule_interrupt+0x109/0x650
[  372.062281]  ? smp_call_function_single_interrupt+0x650/0x650
[  372.068160]  ? interrupt_entry+0xb5/0xc0
[  372.072224]  ? trace_hardirqs_off_caller+0xbb/0x310
[  372.077235]  ? trace_hardirqs_off_caller+0xbb/0x310
[  372.082245]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  372.087087]  ? trace_hardirqs_on_caller+0x310/0x310
[  372.092099]  ? trace_hardirqs_on_caller+0x310/0x310
[  372.097110]  ? task_prio+0x50/0x50
[  372.100645]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.106182]  ? check_preemption_disabled+0x48/0x280
[  372.111198]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  372.116051]  apic_timer_interrupt+0xf/0x20
[  372.120275]  </IRQ>
[  372.122513] RIP: 0010:dump_stack+0x358/0x39d
[  372.126919] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  372.145899] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  372.154564] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  372.161827] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  372.169091] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  372.176351] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  372.183612] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  372.190890]  ? dump_stack+0x34f/0x39d
[  372.194697]  ? dump_stack_print_info.cold.1+0x20/0x20
[  372.199889]  ? mark_held_locks+0x130/0x130
[  372.204115]  ? mark_held_locks+0x130/0x130
[  372.208352]  dump_header+0x27b/0xf72
[  372.212077]  ? pagefault_out_of_memory+0x197/0x197
[  372.217010]  ? __lock_acquire+0x62f/0x4c20
[  372.221244]  ? percpu_ref_get_many+0x240/0x240
[  372.225823]  ? print_usage_bug+0xc0/0xc0
[  372.229882]  ? zap_class+0x640/0x640
[  372.233593]  ? print_usage_bug+0xc0/0xc0
[  372.237645]  ? print_usage_bug+0xc0/0xc0
[  372.241702]  ? zap_class+0x640/0x640
[  372.245415]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.250951]  ? find_held_lock+0x36/0x1c0
[  372.255783]  ? mark_held_locks+0xc7/0x130
[  372.259929]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  372.265026]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  372.270133]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  372.274713]  ? trace_hardirqs_on+0xbd/0x310
[  372.279039]  ? kasan_check_read+0x11/0x20
[  372.283183]  ? ___ratelimit+0x3b4/0x672
[  372.287150]  ? trace_hardirqs_off_caller+0x310/0x310
[  372.292247]  ? trace_hardirqs_on+0x310/0x310
[  372.296651]  ? lock_downgrade+0x900/0x900
[  372.300794]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  372.305888]  ? ___ratelimit+0x3b9/0x672
[  372.309856]  ? idr_get_free+0xf70/0xf70
[  372.313823]  ? find_held_lock+0x36/0x1c0
[  372.317884]  oom_kill_process.cold.27+0x10/0x903
[  372.322636]  ? zap_class+0x640/0x640
[  372.326348]  ? check_preemption_disabled+0x48/0x280
[  372.331364]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  372.336286]  ? kasan_check_read+0x11/0x20
[  372.340425]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.345697]  ? oom_evaluate_task+0x540/0x540
[  372.350103]  ? find_held_lock+0x36/0x1c0
[  372.355167]  ? out_of_memory+0x974/0x1430
[  372.359307]  ? lock_downgrade+0x900/0x900
[  372.363477]  ? check_preemption_disabled+0x48/0x280
[  372.368578]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  372.373502]  ? kasan_check_read+0x11/0x20
[  372.377641]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.382911]  ? rcu_softirq_qs+0x20/0x20
[  372.386883]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.392411]  ? oom_evaluate_task+0x302/0x540
[  372.396818]  out_of_memory+0xa84/0x1430
[  372.400792]  ? oom_killer_disable+0x3a0/0x3a0
[  372.405285]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  372.410213]  ? __ww_mutex_check_waiters+0x160/0x160
[  372.415232]  __alloc_pages_slowpath+0x2354/0x2e10
[  372.420090]  ? warn_alloc+0x120/0x120
[  372.423886]  ? mark_held_locks+0x130/0x130
[  372.428116]  ? find_get_entry+0xaae/0x1120
[  372.432349]  ? filemap_map_pages+0x1a20/0x1a20
[  372.436925]  ? zap_class+0x640/0x640
[  372.440634]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.446254]  ? check_preemption_disabled+0x48/0x280
[  372.451264]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.457591]  ? should_fail+0x22d/0xd01
[  372.461477]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  372.466578]  ? zap_class+0x640/0x640
[  372.470307]  ? __lock_is_held+0xb5/0x140
[  372.474365]  ? mark_held_locks+0x130/0x130
[  372.478599]  ? lock_release+0xa00/0xa00
[  372.482566]  ? perf_trace_sched_process_exec+0x860/0x860
[  372.488007]  ? xa_load+0x2ba/0x460
[  372.491553]  ? lock_downgrade+0x900/0x900
[  372.495697]  ? __might_sleep+0x95/0x190
[  372.499681]  __alloc_pages_nodemask+0xa80/0xde0
[  372.504353]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  372.509363]  ? __page_cache_alloc+0x191/0x5c0
[  372.513853]  ? xa_load+0x2e1/0x460
[  372.517388]  ? xa_clear_mark+0x40/0x40
[  372.521265]  ? zap_class+0x640/0x640
[  372.524984]  ? zap_class+0x640/0x640
[  372.528708]  ? zap_class+0x640/0x640
[  372.532432]  ? __do_page_cache_readahead+0x663/0x810
[  372.537546]  ? find_held_lock+0x36/0x1c0
[  372.541606]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  372.547140]  alloc_pages_current+0x173/0x350
[  372.551556]  __page_cache_alloc+0x38c/0x5c0
[  372.556142]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  372.561063]  ? kasan_check_read+0x11/0x20
[  372.565205]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.570474]  ? generic_perform_write+0x6a0/0x6a0
[  372.575243]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.580771]  ? check_preemption_disabled+0x48/0x280
[  372.585787]  filemap_fault+0x1595/0x25f0
[  372.589849]  ? __lock_page_or_retry+0xa00/0xa00
[  372.594512]  ? mark_held_locks+0x130/0x130
[  372.598752]  ? filemap_map_pages+0xd6b/0x1a20
[  372.603252]  ? lock_downgrade+0x900/0x900
[  372.607398]  ? check_preemption_disabled+0x48/0x280
[  372.612411]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  372.617333]  ? kasan_check_read+0x11/0x20
[  372.621475]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.626742]  ? rcu_softirq_qs+0x20/0x20
[  372.630720]  ? filemap_map_pages+0xd92/0x1a20
[  372.635219]  ? find_get_entries_tag+0x1400/0x1400
[  372.640061]  ? debug_object_destroy+0x2b0/0x2b0
[  372.644725]  ? lock_pi_update_atomic+0x150/0x150
[  372.649472]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.655620]  ? lock_acquire+0x1ed/0x520
[  372.659588]  ? ext4_filemap_fault+0x7a/0xad
[  372.663910]  ? lock_release+0xa00/0xa00
[  372.667876]  ? perf_trace_sched_process_exec+0x860/0x860
[  372.673319]  ? print_usage_bug+0xc0/0xc0
[  372.677391]  ? print_usage_bug+0xc0/0xc0
[  372.681455]  ? down_read+0x8d/0x120
[  372.685071]  ? ext4_filemap_fault+0x7a/0xad
[  372.689390]  ? __down_interruptible+0x700/0x700
[  372.694062]  ext4_filemap_fault+0x82/0xad
[  372.698205]  __do_fault+0x100/0x6b0
[  372.701829]  ? pmd_devmap_trans_unstable+0x220/0x220
[  372.706929]  ? mark_held_locks+0x130/0x130
[  372.711184]  ? mark_held_locks+0x130/0x130
[  372.715413]  ? do_raw_spin_trylock+0x270/0x270
[  372.719995]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.725554]  __handle_mm_fault+0x3ea0/0x5be0
[  372.729974]  ? perf_trace_lock+0x7a0/0x7a0
[  372.734221]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  372.739060]  ? __switch_to_asm+0x34/0x70
[  372.743111]  ? __switch_to_asm+0x34/0x70
[  372.747170]  ? zap_class+0x640/0x640
[  372.750883]  ? zap_class+0x640/0x640
[  372.755104]  ? __x64_sys_futex+0x53e/0x6a0
[  372.759335]  ? find_held_lock+0x36/0x1c0
[  372.763398]  ? handle_mm_fault+0x42a/0xc70
[  372.767625]  ? lock_downgrade+0x900/0x900
[  372.771763]  ? check_preemption_disabled+0x48/0x280
[  372.776770]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  372.781694]  ? kasan_check_read+0x11/0x20
[  372.785836]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.791106]  ? rcu_softirq_qs+0x20/0x20
[  372.795075]  ? trace_hardirqs_off_caller+0x310/0x310
[  372.800172]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.805706]  ? check_preemption_disabled+0x48/0x280
[  372.810815]  handle_mm_fault+0x54f/0xc70
[  372.814873]  ? __handle_mm_fault+0x5be0/0x5be0
[  372.819456]  ? find_vma+0x34/0x190
[  372.822994]  __do_page_fault+0x5e8/0xe60
[  372.827059]  ? trace_hardirqs_off+0xb8/0x310
[  372.831473]  do_page_fault+0xf2/0x7e0
[  372.835268]  ? vmalloc_sync_all+0x30/0x30
[  372.839409]  ? error_entry+0x70/0xd0
[  372.843115]  ? trace_hardirqs_off_caller+0xbb/0x310
[  372.848122]  ? trace_hardirqs_on_caller+0xc0/0x310
[  372.853823]  ? syscall_return_slowpath+0x5e0/0x5e0
[  372.858745]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  372.863585]  ? trace_hardirqs_on_caller+0x310/0x310
[  372.868597]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  372.874043]  ? prepare_exit_to_usermode+0x291/0x3b0
[  372.879050]  ? page_fault+0x8/0x30
[  372.882586]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  372.887422]  ? page_fault+0x8/0x30
[  372.890954]  page_fault+0x1e/0x30
[  372.894400] RIP: 0033:0x45ddf3
[  372.897623] Code: Bad RIP value.
[  372.900980] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  372.906344] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  372.913603] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  372.920864] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  372.928128] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  372.935388] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  372.942667] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  372.942671] warn_alloc_show_mem: 1 callbacks suppressed
[  372.942676] Mem-Info:
[  372.949420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  372.955746] active_anon:54141 inactive_anon:292 isolated_anon:0
[  372.955746]  active_file:12 inactive_file:13 isolated_file:0
[  372.955746]  unevictable:0 dirty:0 writeback:0 unstable:0
[  372.955746]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  372.955746]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  372.955746]  free:13705 free_pcp:178 free_cma:0
[  372.958113] Call Trace:
[  372.967482] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  373.000418]  dump_stack+0x244/0x39d
[  373.002968] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  373.030728]  ? dump_stack_print_info.cold.1+0x20/0x20
[  373.034319] lowmem_reserve[]: 0 2818 6321 6321
[  373.060739]  warn_alloc.cold.116+0xb7/0x1bd
[  373.065889] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  373.070476]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  373.074758] lowmem_reserve[]: 0 0 3503 3503
[  373.102246]  ? lock_downgrade+0x900/0x900
[  373.107058] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  373.111385]  ? trace_hardirqs_off+0xb8/0x310
[  373.115499] lowmem_reserve[]: 0 0 0 0
[  373.144465]  ? trace_hardirqs_off+0xb8/0x310
[  373.148850] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  373.152909]  __alloc_pages_slowpath+0x26e8/0x2e10
[  373.152933]  ? warn_alloc+0x120/0x120
[  373.152943]  ? print_usage_bug+0xc0/0xc0
[  373.152952]  ? warn_alloc+0x120/0x120
[  373.152963]  ? warn_alloc+0x120/0x120
[  373.152972]  ? print_usage_bug+0xc0/0xc0
[  373.152999]  ? print_usage_bug+0xc0/0xc0
[  373.153015]  ? __lock_acquire+0x62f/0x4c20
[  373.157397] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  373.170907]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.175709] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  373.179502]  ? should_fail+0x22d/0xd01
[  373.179519]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  373.183554] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  373.187333]  ? __lock_acquire+0x62f/0x4c20
[  373.191110] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  373.195154]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  373.199186] 366 total pagecache pages
[  373.203405]  ? __lock_acquire+0x62f/0x4c20
[  373.218642] 0 pages in swap cache
[  373.224154]  ? should_fail+0x22d/0xd01
[  373.238340] Swap cache stats: add 0, delete 0, find 0/0
[  373.238347] Free swap  = 0kB
[  373.242220]  ? find_held_lock+0x36/0x1c0
[  373.247292] Total swap = 0kB
[  373.256460]  ? mark_held_locks+0x130/0x130
[  373.260660] 1965979 pages RAM
[  373.269217]  ? mark_held_locks+0x130/0x130
[  373.274287] 0 pages HighMem/MovableOnly
[  373.278071]  ? zap_class+0x640/0x640
[  373.282274] 342854 pages reserved
[  373.285715]  ? mark_held_locks+0xc7/0x130
[  373.289569] 0 pages cma reserved
[  373.294916]  ? do_raw_spin_unlock+0xa7/0x330
[  373.297957] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  373.301953]  ? zap_class+0x640/0x640
[  373.301974]  ? print_usage_bug+0xc0/0xc0
[  373.301998]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.305247] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  373.309216]  ? check_preemption_disabled+0x48/0x280
[  373.312288] syz-fuzzer cpuset=/ mems_allowed=0
[  373.316518]  ? __lock_is_held+0xb5/0x140
[  373.383251]  __alloc_pages_nodemask+0xa80/0xde0
[  373.387914]  ? zap_class+0x640/0x640
[  373.391629]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  373.396649]  ? find_held_lock+0x36/0x1c0
[  373.400711]  ? ____cache_alloc_node+0x1c7/0x1e0
[  373.405376]  ? lock_downgrade+0x900/0x900
[  373.409524]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.415067]  cache_grow_begin+0xa5/0x8c0
[  373.419120]  ? do_raw_spin_unlock+0xa7/0x330
[  373.423527]  fallback_alloc+0x204/0x2e0
[  373.427496]  ____cache_alloc_node+0x1c7/0x1e0
[  373.432005]  kmem_cache_alloc_node+0xe3/0x730
[  373.436494]  ? ipv6_get_ifaddr+0x42e/0x620
[  373.440729]  __alloc_skb+0x119/0x770
[  373.444434]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.449704]  ? netdev_alloc_frag+0x1f0/0x1f0
[  373.454448]  ? lock_downgrade+0x900/0x900
[  373.458595]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.464123]  ? refcount_sub_and_test_checked+0x203/0x310
[  373.469568]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  373.475005]  ? addrconf_rs_timer+0x690/0x690
[  373.479413]  ndisc_alloc_skb+0x144/0x340
[  373.483486]  ndisc_send_rs+0x331/0x6e0
[  373.487366]  addrconf_rs_timer+0x314/0x690
[  373.491593]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.495832]  call_timer_fn+0x272/0x920
[  373.499710]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.503972]  ? process_timeout+0x40/0x40
[  373.508035]  ? __run_timers+0x7da/0xc70
[  373.512093]  ? _raw_spin_unlock_irq+0x27/0x80
[  373.516581]  ? _raw_spin_unlock_irq+0x27/0x80
[  373.521063]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.525290]  ? lockdep_hardirqs_on+0x296/0x5b0
[  373.529868]  ? trace_hardirqs_on+0xbd/0x310
[  373.534291]  ? kasan_check_read+0x11/0x20
[  373.538428]  ? __run_timers+0x7da/0xc70
[  373.542394]  ? trace_hardirqs_off_caller+0x310/0x310
[  373.547491]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.551723]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.556301]  __run_timers+0x7e5/0xc70
[  373.560188]  ? timer_fixup_init+0x70/0x70
[  373.564321]  ? _raw_spin_unlock_irq+0x27/0x80
[  373.568807]  ? _raw_spin_unlock_irq+0x27/0x80
[  373.573295]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  373.577870]  ? trace_hardirqs_on+0xbd/0x310
[  373.582180]  ? kasan_check_read+0x11/0x20
[  373.586318]  ? finish_task_switch+0x1f4/0x910
[  373.590817]  ? trace_hardirqs_off_caller+0x310/0x310
[  373.595910]  ? compat_start_thread+0x80/0x80
[  373.600328]  ? pvclock_read_flags+0x160/0x160
[  373.604813]  ? __switch_to_asm+0x34/0x70
[  373.608866]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.614394]  ? check_preemption_disabled+0x48/0x280
[  373.619411]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  373.624939]  ? rcu_pm_notify+0xc0/0xc0
[  373.628832]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.634362]  ? check_preemption_disabled+0x48/0x280
[  373.639377]  run_timer_softirq+0x52/0xb0
[  373.643427]  ? rcu_read_lock_sched_held+0x14f/0x180
[  373.648435]  __do_softirq+0x308/0xb7e
[  373.652502]  ? trace_hardirqs_on_caller+0xc0/0x310
[  373.657428]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  373.662530]  ? trace_hardirqs_on+0x310/0x310
[  373.666935]  ? schedule+0x108/0x460
[  373.670581]  ? trace_hardirqs_off+0xb8/0x310
[  373.674992]  ? smpboot_thread_fn+0x68b/0xa00
[  373.679394]  ? trace_hardirqs_on+0x310/0x310
[  373.683798]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.689347]  ? check_preemption_disabled+0x48/0x280
[  373.694355]  ? takeover_tasklets+0xa90/0xa90
[  373.698760]  run_ksoftirqd+0x5e/0x100
[  373.702555]  smpboot_thread_fn+0x68b/0xa00
[  373.706787]  ? sort_range+0x30/0x30
[  373.710408]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  373.715501]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.721028]  ? __kthread_parkme+0xfb/0x1a0
[  373.725258]  ? sort_range+0x30/0x30
[  373.728882]  kthread+0x35a/0x440
[  373.732242]  ? kthread_stop+0x900/0x900
[  373.736209]  ret_from_fork+0x3a/0x50
[  373.739931] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  373.740025] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  373.746855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  373.746859] Call Trace:
[  373.746865]  <IRQ>
[  373.746880]  dump_stack+0x244/0x39d
[  373.746897]  ? dump_stack_print_info.cold.1+0x20/0x20
[  373.753711] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  373.763002]  warn_alloc.cold.116+0xb7/0x1bd
[  373.765552] ksoftirqd/0 cpuset=/ mems_allowed=0
[  373.767697]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  373.800543]  ? lock_downgrade+0x900/0x900
[  373.804689]  ? trace_hardirqs_off+0xb8/0x310
[  373.809095]  ? trace_hardirqs_off+0xb8/0x310
[  373.813506]  __alloc_pages_slowpath+0x26e8/0x2e10
[  373.818365]  ? warn_alloc+0x120/0x120
[  373.822160]  ? find_held_lock+0x36/0x1c0
[  373.826213]  ? warn_alloc+0x120/0x120
[  373.830009]  ? warn_alloc+0x120/0x120
[  373.833805]  ? print_usage_bug+0xc0/0xc0
[  373.837867]  ? print_usage_bug+0xc0/0xc0
[  373.841921]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.847219]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.853680]  ? should_fail+0x22d/0xd01
[  373.857580]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  373.862673]  ? __lock_acquire+0x62f/0x4c20
[  373.866907]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  373.872006]  ? __lock_acquire+0x62f/0x4c20
[  373.876234]  ? should_fail+0x22d/0xd01
[  373.880127]  ? mark_held_locks+0x130/0x130
[  373.884710]  ? mark_held_locks+0x130/0x130
[  373.888942]  ? try_to_wake_up+0x11c/0x1490
[  373.893171]  ? lock_downgrade+0x900/0x900
[  373.897314]  ? zap_class+0x640/0x640
[  373.901022]  ? print_usage_bug+0xc0/0xc0
[  373.905074]  ? trace_hardirqs_off+0xb8/0x310
[  373.909476]  ? kasan_check_read+0x11/0x20
[  373.913623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.919153]  ? check_preemption_disabled+0x48/0x280
[  373.924169]  ? __lock_is_held+0xb5/0x140
[  373.928227]  __alloc_pages_nodemask+0xa80/0xde0
[  373.933380]  ? zap_class+0x640/0x640
[  373.937094]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  373.942130]  ? find_held_lock+0x36/0x1c0
[  373.946193]  ? ____cache_alloc_node+0x1c7/0x1e0
[  373.950856]  ? lock_downgrade+0x900/0x900
[  373.955938]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.961471]  cache_grow_begin+0xa5/0x8c0
[  373.965523]  ? do_raw_spin_unlock+0xa7/0x330
[  373.969937]  fallback_alloc+0x204/0x2e0
[  373.973939]  ____cache_alloc_node+0x1c7/0x1e0
[  373.978430]  kmem_cache_alloc_node+0xe3/0x730
[  373.982927]  ? ipv6_get_ifaddr+0x42e/0x620
[  373.987163]  __alloc_skb+0x119/0x770
[  373.990886]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.996167]  ? netdev_alloc_frag+0x1f0/0x1f0
[  374.000565]  ? lock_downgrade+0x900/0x900
[  374.004719]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.010248]  ? refcount_sub_and_test_checked+0x203/0x310
[  374.015696]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  374.021136]  ? addrconf_rs_timer+0x690/0x690
[  374.025545]  ndisc_alloc_skb+0x144/0x340
[  374.029607]  ndisc_send_rs+0x331/0x6e0
[  374.033488]  addrconf_rs_timer+0x314/0x690
[  374.037722]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.041959]  call_timer_fn+0x272/0x920
[  374.045837]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.050064]  ? process_timeout+0x40/0x40
[  374.054885]  ? mark_held_locks+0xc7/0x130
[  374.059037]  ? _raw_spin_unlock_irq+0x27/0x80
[  374.063526]  ? _raw_spin_unlock_irq+0x27/0x80
[  374.068012]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.072240]  ? lockdep_hardirqs_on+0x296/0x5b0
[  374.076820]  ? trace_hardirqs_on+0xbd/0x310
[  374.081135]  ? kasan_check_read+0x11/0x20
[  374.085278]  ? __run_timers+0x7da/0xc70
[  374.089248]  ? trace_hardirqs_off_caller+0x310/0x310
[  374.094357]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.098582]  __run_timers+0x7e5/0xc70
[  374.102384]  ? timer_fixup_init+0x70/0x70
[  374.106526]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  374.111533]  ? zap_class+0x640/0x640
[  374.115244]  ? print_usage_bug+0xc0/0xc0
[  374.119300]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  374.124490]  ? find_held_lock+0x36/0x1c0
[  374.128553]  ? zap_class+0x640/0x640
[  374.132267]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.137801]  ? check_preemption_disabled+0x48/0x280
[  374.142818]  ? __lock_is_held+0xb5/0x140
[  374.146878]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.153234]  ? check_preemption_disabled+0x48/0x280
[  374.158249]  run_timer_softirq+0x52/0xb0
[  374.162310]  ? rcu_read_lock_sched_held+0x14f/0x180
[  374.167321]  __do_softirq+0x308/0xb7e
[  374.171117]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  374.175608]  ? lock_downgrade+0x900/0x900
[  374.179752]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  374.184853]  ? pvclock_read_flags+0x160/0x160
[  374.189349]  ? lapic_next_event+0x5a/0x90
[  374.193497]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.199034]  ? kvm_clock_read+0x18/0x30
[  374.203004]  ? kvm_sched_clock_read+0x9/0x20
[  374.207406]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.212941]  ? check_preemption_disabled+0x48/0x280
[  374.217963]  irq_exit+0x17f/0x1c0
[  374.221415]  smp_apic_timer_interrupt+0x1cb/0x760
[  374.226256]  ? smp_reschedule_interrupt+0x109/0x650
[  374.231269]  ? smp_call_function_single_interrupt+0x650/0x650
[  374.237145]  ? interrupt_entry+0xb5/0xc0
[  374.241201]  ? trace_hardirqs_off_caller+0xbb/0x310
[  374.246213]  ? trace_hardirqs_off_caller+0xbb/0x310
[  374.251239]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.256870]  ? trace_hardirqs_on_caller+0x310/0x310
[  374.261886]  ? trace_hardirqs_on_caller+0x310/0x310
[  374.266900]  ? task_prio+0x50/0x50
[  374.270448]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.275979]  ? check_preemption_disabled+0x48/0x280
[  374.280998]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.285839]  apic_timer_interrupt+0xf/0x20
[  374.290061]  </IRQ>
[  374.292293] RIP: 0010:dump_stack+0x358/0x39d
[  374.296693] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  374.315585] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  374.323284] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  374.330544] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  374.337805] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  374.345067] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  374.353285] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  374.360559]  ? dump_stack+0x34f/0x39d
[  374.364368]  ? dump_stack_print_info.cold.1+0x20/0x20
[  374.369555]  ? mark_held_locks+0x130/0x130
[  374.373784]  ? mark_held_locks+0x130/0x130
[  374.378015]  dump_header+0x27b/0xf72
[  374.381729]  ? pagefault_out_of_memory+0x197/0x197
[  374.386656]  ? __lock_acquire+0x62f/0x4c20
[  374.390888]  ? percpu_ref_get_many+0x240/0x240
[  374.395476]  ? print_usage_bug+0xc0/0xc0
[  374.399544]  ? zap_class+0x640/0x640
[  374.403257]  ? print_usage_bug+0xc0/0xc0
[  374.407306]  ? print_usage_bug+0xc0/0xc0
[  374.411362]  ? zap_class+0x640/0x640
[  374.415072]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.420608]  ? find_held_lock+0x36/0x1c0
[  374.424669]  ? mark_held_locks+0xc7/0x130
[  374.428810]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  374.433948]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  374.439045]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  374.443627]  ? trace_hardirqs_on+0xbd/0x310
[  374.447965]  ? kasan_check_read+0x11/0x20
[  374.452632]  ? ___ratelimit+0x3b4/0x672
[  374.456601]  ? trace_hardirqs_off_caller+0x310/0x310
[  374.461694]  ? trace_hardirqs_on+0x310/0x310
[  374.466098]  ? lock_downgrade+0x900/0x900
[  374.470237]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  374.475333]  ? ___ratelimit+0x3b9/0x672
[  374.479316]  ? idr_get_free+0xf70/0xf70
[  374.483320]  ? find_held_lock+0x36/0x1c0
[  374.487384]  oom_kill_process.cold.27+0x10/0x903
[  374.492135]  ? zap_class+0x640/0x640
[  374.495843]  ? check_preemption_disabled+0x48/0x280
[  374.500851]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  374.505766]  ? kasan_check_read+0x11/0x20
[  374.509912]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.515186]  ? oom_evaluate_task+0x540/0x540
[  374.519604]  ? find_held_lock+0x36/0x1c0
[  374.523659]  ? out_of_memory+0x974/0x1430
[  374.527796]  ? lock_downgrade+0x900/0x900
[  374.531935]  ? check_preemption_disabled+0x48/0x280
[  374.536946]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  374.541868]  ? kasan_check_read+0x11/0x20
[  374.546015]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.551282]  ? rcu_softirq_qs+0x20/0x20
[  374.556057]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.561587]  ? oom_evaluate_task+0x302/0x540
[  374.565990]  out_of_memory+0xa84/0x1430
[  374.569961]  ? oom_killer_disable+0x3a0/0x3a0
[  374.574448]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  374.579372]  ? __ww_mutex_check_waiters+0x160/0x160
[  374.584393]  __alloc_pages_slowpath+0x2354/0x2e10
[  374.589266]  ? warn_alloc+0x120/0x120
[  374.593057]  ? mark_held_locks+0x130/0x130
[  374.597294]  ? find_get_entry+0xaae/0x1120
[  374.601534]  ? filemap_map_pages+0x1a20/0x1a20
[  374.606112]  ? zap_class+0x640/0x640
[  374.609826]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.615356]  ? check_preemption_disabled+0x48/0x280
[  374.620369]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.625907]  ? should_fail+0x22d/0xd01
[  374.629796]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  374.634899]  ? zap_class+0x640/0x640
[  374.638628]  ? __lock_is_held+0xb5/0x140
[  374.642691]  ? mark_held_locks+0x130/0x130
[  374.646922]  ? lock_release+0xa00/0xa00
[  374.650996]  ? perf_trace_sched_process_exec+0x860/0x860
[  374.657206]  ? xa_load+0x2ba/0x460
[  374.660744]  ? lock_downgrade+0x900/0x900
[  374.664898]  ? __might_sleep+0x95/0x190
[  374.668872]  __alloc_pages_nodemask+0xa80/0xde0
[  374.673631]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  374.678639]  ? __page_cache_alloc+0x191/0x5c0
[  374.683125]  ? xa_load+0x2e1/0x460
[  374.686660]  ? xa_clear_mark+0x40/0x40
[  374.690542]  ? zap_class+0x640/0x640
[  374.694260]  ? zap_class+0x640/0x640
[  374.697965]  ? zap_class+0x640/0x640
[  374.701673]  ? __do_page_cache_readahead+0x663/0x810
[  374.706777]  ? find_held_lock+0x36/0x1c0
[  374.710835]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  374.716370]  alloc_pages_current+0x173/0x350
[  374.720782]  __page_cache_alloc+0x38c/0x5c0
[  374.725111]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  374.730033]  ? kasan_check_read+0x11/0x20
[  374.734175]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.739465]  ? generic_perform_write+0x6a0/0x6a0
[  374.744214]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.749745]  ? check_preemption_disabled+0x48/0x280
[  374.755704]  filemap_fault+0x1595/0x25f0
[  374.759768]  ? __lock_page_or_retry+0xa00/0xa00
[  374.764434]  ? mark_held_locks+0x130/0x130
[  374.768685]  ? filemap_map_pages+0xd6b/0x1a20
[  374.773179]  ? lock_downgrade+0x900/0x900
[  374.777330]  ? check_preemption_disabled+0x48/0x280
[  374.782340]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  374.787262]  ? kasan_check_read+0x11/0x20
[  374.791407]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.796677]  ? rcu_softirq_qs+0x20/0x20
[  374.800658]  ? filemap_map_pages+0xd92/0x1a20
[  374.805157]  ? find_get_entries_tag+0x1400/0x1400
[  374.809993]  ? debug_object_destroy+0x2b0/0x2b0
[  374.814656]  ? lock_pi_update_atomic+0x150/0x150
[  374.819425]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.824976]  ? lock_acquire+0x1ed/0x520
[  374.828946]  ? ext4_filemap_fault+0x7a/0xad
[  374.833265]  ? lock_release+0xa00/0xa00
[  374.837233]  ? perf_trace_sched_process_exec+0x860/0x860
[  374.842677]  ? print_usage_bug+0xc0/0xc0
[  374.846744]  ? print_usage_bug+0xc0/0xc0
[  374.850809]  ? down_read+0x8d/0x120
[  374.854806]  ? ext4_filemap_fault+0x7a/0xad
[  374.859123]  ? __down_interruptible+0x700/0x700
[  374.863790]  ext4_filemap_fault+0x82/0xad
[  374.867936]  __do_fault+0x100/0x6b0
[  374.871573]  ? pmd_devmap_trans_unstable+0x220/0x220
[  374.876671]  ? mark_held_locks+0x130/0x130
[  374.880903]  ? mark_held_locks+0x130/0x130
[  374.885129]  ? do_raw_spin_trylock+0x270/0x270
[  374.889705]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.895236]  __handle_mm_fault+0x3ea0/0x5be0
[  374.899638]  ? perf_trace_lock+0x7a0/0x7a0
[  374.903877]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  374.908713]  ? __switch_to_asm+0x34/0x70
[  374.912768]  ? __switch_to_asm+0x34/0x70
[  374.916833]  ? zap_class+0x640/0x640
[  374.920615]  ? zap_class+0x640/0x640
[  374.924322]  ? __x64_sys_futex+0x53e/0x6a0
[  374.928556]  ? find_held_lock+0x36/0x1c0
[  374.932616]  ? handle_mm_fault+0x42a/0xc70
[  374.936843]  ? lock_downgrade+0x900/0x900
[  374.940990]  ? check_preemption_disabled+0x48/0x280
[  374.946025]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  374.950948]  ? kasan_check_read+0x11/0x20
[  374.955864]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.961133]  ? rcu_softirq_qs+0x20/0x20
[  374.965097]  ? trace_hardirqs_off_caller+0x310/0x310
[  374.970191]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.975731]  ? check_preemption_disabled+0x48/0x280
[  374.980750]  handle_mm_fault+0x54f/0xc70
[  374.984809]  ? __handle_mm_fault+0x5be0/0x5be0
[  374.989393]  ? find_vma+0x34/0x190
[  374.992930]  __do_page_fault+0x5e8/0xe60
[  374.996984]  ? trace_hardirqs_off+0xb8/0x310
[  375.001396]  do_page_fault+0xf2/0x7e0
[  375.005189]  ? vmalloc_sync_all+0x30/0x30
[  375.009330]  ? error_entry+0x70/0xd0
[  375.013036]  ? trace_hardirqs_off_caller+0xbb/0x310
[  375.018048]  ? trace_hardirqs_on_caller+0xc0/0x310
[  375.022971]  ? syscall_return_slowpath+0x5e0/0x5e0
[  375.027890]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.032725]  ? trace_hardirqs_on_caller+0x310/0x310
[  375.037736]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  375.043187]  ? prepare_exit_to_usermode+0x291/0x3b0
[  375.048199]  ? page_fault+0x8/0x30
[  375.051736]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.057585]  ? page_fault+0x8/0x30
[  375.061116]  page_fault+0x1e/0x30
[  375.064560] RIP: 0033:0x45ddf3
[  375.067759] Code: Bad RIP value.
[  375.071113] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  375.076474] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  375.083736] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  375.090994] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  375.098257] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  375.105515] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  375.112825] warn_alloc_show_mem: 1 callbacks suppressed
[  375.112834] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  375.112836] Mem-Info:
[  375.112872] active_anon:54141 inactive_anon:292 isolated_anon:0
[  375.112872]  active_file:12 inactive_file:13 isolated_file:0
[  375.112872]  unevictable:0 dirty:0 writeback:0 unstable:0
[  375.112872]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  375.112872]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  375.112872]  free:13705 free_pcp:178 free_cma:0
[  375.118208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  375.124979] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  375.127369] Call Trace:
[  375.161216] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  375.170560]  dump_stack+0x244/0x39d
[  375.198199] lowmem_reserve[]: 0 2818 6321 6321
[  375.200775]  ? dump_stack_print_info.cold.1+0x20/0x20
[  375.226854] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  375.230481]  warn_alloc.cold.116+0xb7/0x1bd
[  375.235022] lowmem_reserve[]: 0 0 3503 3503
[  375.240224]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  375.268688] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  375.272998]  ? lock_downgrade+0x900/0x900
[  375.277300] lowmem_reserve[]: 0 0 0 0
[  375.282135]  ? trace_hardirqs_off+0xb8/0x310
[  375.311072] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  375.315211]  ? trace_hardirqs_off+0xb8/0x310
[  375.318977] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  375.323375]  __alloc_pages_slowpath+0x26e8/0x2e10
[  375.336877] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  375.341293]  ? warn_alloc+0x120/0x120
[  375.356828] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  375.361660]  ? print_usage_bug+0xc0/0xc0
[  375.375858] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  375.379638]  ? warn_alloc+0x120/0x120
[  375.388445] 366 total pagecache pages
[  375.392493]  ? warn_alloc+0x120/0x120
[  375.401046] 0 pages in swap cache
[  375.404825]  ? print_usage_bug+0xc0/0xc0
[  375.408599] Swap cache stats: add 0, delete 0, find 0/0
[  375.412380]  ? print_usage_bug+0xc0/0xc0
[  375.415802] Free swap  = 0kB
[  375.419860]  ? __lock_acquire+0x62f/0x4c20
[  375.425188] Total swap = 0kB
[  375.425194] 1965979 pages RAM
[  375.429238]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.432233] 0 pages HighMem/MovableOnly
[  375.436464]  ? should_fail+0x22d/0xd01
[  375.439452] 342854 pages reserved
[  375.442542]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  375.448046] 0 pages cma reserved
[  375.452010]  ? __lock_acquire+0x62f/0x4c20
[  375.456246] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  375.459617]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  375.464758] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  375.468040]  ? __lock_acquire+0x62f/0x4c20
[  375.472240] syz-fuzzer cpuset=/ mems_allowed=0
[  375.478717]  ? should_fail+0x22d/0xd01
[  375.506767]  ? find_held_lock+0x36/0x1c0
[  375.510831]  ? mark_held_locks+0x130/0x130
[  375.515066]  ? mark_held_locks+0x130/0x130
[  375.519292]  ? zap_class+0x640/0x640
[  375.523000]  ? mark_held_locks+0xc7/0x130
[  375.527138]  ? do_raw_spin_unlock+0xa7/0x330
[  375.531551]  ? zap_class+0x640/0x640
[  375.535267]  ? print_usage_bug+0xc0/0xc0
[  375.539325]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.544863]  ? check_preemption_disabled+0x48/0x280
[  375.549878]  ? __lock_is_held+0xb5/0x140
[  375.554214]  __alloc_pages_nodemask+0xa80/0xde0
[  375.558873]  ? zap_class+0x640/0x640
[  375.562597]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  375.567610]  ? find_held_lock+0x36/0x1c0
[  375.571671]  ? ____cache_alloc_node+0x1c7/0x1e0
[  375.576332]  ? lock_downgrade+0x900/0x900
[  375.580486]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.586018]  cache_grow_begin+0xa5/0x8c0
[  375.590072]  ? do_raw_spin_unlock+0xa7/0x330
[  375.594485]  fallback_alloc+0x204/0x2e0
[  375.598457]  ____cache_alloc_node+0x1c7/0x1e0
[  375.602952]  kmem_cache_alloc_node+0xe3/0x730
[  375.607451]  ? ipv6_get_ifaddr+0x42e/0x620
[  375.611686]  __alloc_skb+0x119/0x770
[  375.615390]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.620661]  ? netdev_alloc_frag+0x1f0/0x1f0
[  375.625069]  ? lock_downgrade+0x900/0x900
[  375.629219]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.634757]  ? refcount_sub_and_test_checked+0x203/0x310
[  375.640209]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  375.645678]  ? addrconf_rs_timer+0x690/0x690
[  375.650092]  ndisc_alloc_skb+0x144/0x340
[  375.654469]  ndisc_send_rs+0x331/0x6e0
[  375.658362]  addrconf_rs_timer+0x314/0x690
[  375.662597]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.666847]  call_timer_fn+0x272/0x920
[  375.670725]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.674950]  ? process_timeout+0x40/0x40
[  375.679007]  ? __run_timers+0x7da/0xc70
[  375.682991]  ? _raw_spin_unlock_irq+0x27/0x80
[  375.687478]  ? _raw_spin_unlock_irq+0x27/0x80
[  375.691965]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.696188]  ? lockdep_hardirqs_on+0x296/0x5b0
[  375.700767]  ? trace_hardirqs_on+0xbd/0x310
[  375.705078]  ? kasan_check_read+0x11/0x20
[  375.709216]  ? __run_timers+0x7da/0xc70
[  375.713183]  ? trace_hardirqs_off_caller+0x310/0x310
[  375.718281]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.722512]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.726738]  __run_timers+0x7e5/0xc70
[  375.730540]  ? timer_fixup_init+0x70/0x70
[  375.734677]  ? _raw_spin_unlock_irq+0x27/0x80
[  375.739161]  ? _raw_spin_unlock_irq+0x27/0x80
[  375.743643]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  375.748217]  ? trace_hardirqs_on+0xbd/0x310
[  375.752797]  ? kasan_check_read+0x11/0x20
[  375.756942]  ? finish_task_switch+0x1f4/0x910
[  375.761427]  ? trace_hardirqs_off_caller+0x310/0x310
[  375.766963]  ? compat_start_thread+0x80/0x80
[  375.771384]  ? pvclock_read_flags+0x160/0x160
[  375.775871]  ? __switch_to_asm+0x34/0x70
[  375.779931]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.785458]  ? check_preemption_disabled+0x48/0x280
[  375.790470]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  375.796010]  ? rcu_pm_notify+0xc0/0xc0
[  375.799891]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.805421]  ? check_preemption_disabled+0x48/0x280
[  375.810434]  run_timer_softirq+0x52/0xb0
[  375.814504]  ? rcu_read_lock_sched_held+0x14f/0x180
[  375.819616]  __do_softirq+0x308/0xb7e
[  375.823413]  ? trace_hardirqs_on_caller+0xc0/0x310
[  375.828342]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  375.833440]  ? trace_hardirqs_on+0x310/0x310
[  375.837848]  ? schedule+0x108/0x460
[  375.841478]  ? trace_hardirqs_off+0xb8/0x310
[  375.845878]  ? smpboot_thread_fn+0x68b/0xa00
[  375.850282]  ? trace_hardirqs_on+0x310/0x310
[  375.855013]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.860544]  ? check_preemption_disabled+0x48/0x280
[  375.865551]  ? takeover_tasklets+0xa90/0xa90
[  375.869951]  run_ksoftirqd+0x5e/0x100
[  375.873743]  smpboot_thread_fn+0x68b/0xa00
[  375.877974]  ? sort_range+0x30/0x30
[  375.881594]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  375.886687]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.892214]  ? __kthread_parkme+0xfb/0x1a0
[  375.896473]  ? sort_range+0x30/0x30
[  375.900093]  kthread+0x35a/0x440
[  375.903449]  ? kthread_stop+0x900/0x900
[  375.907415]  ret_from_fork+0x3a/0x50
[  375.911134] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  375.911257] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  375.918051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  375.924591] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  375.934364] Call Trace:
[  375.944671] ksoftirqd/0 cpuset=/ mems_allowed=0
[  375.947236]  <IRQ>
[  375.954949]  dump_stack+0x244/0x39d
[  375.958570]  ? dump_stack_print_info.cold.1+0x20/0x20
[  375.963852]  warn_alloc.cold.116+0xb7/0x1bd
[  375.968166]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  375.973000]  ? lock_downgrade+0x900/0x900
[  375.977142]  ? trace_hardirqs_off+0xb8/0x310
[  375.981546]  ? trace_hardirqs_off+0xb8/0x310
[  375.985959]  __alloc_pages_slowpath+0x26e8/0x2e10
[  375.990831]  ? warn_alloc+0x120/0x120
[  375.994622]  ? print_usage_bug+0xc0/0xc0
[  375.998677]  ? warn_alloc+0x120/0x120
[  376.002473]  ? warn_alloc+0x120/0x120
[  376.006265]  ? print_usage_bug+0xc0/0xc0
[  376.010322]  ? kvm_clock_read+0x18/0x30
[  376.014290]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  376.019301]  ? print_usage_bug+0xc0/0xc0
[  376.023356]  ? __lock_acquire+0x62f/0x4c20
[  376.027589]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.033118]  ? should_fail+0x22d/0xd01
[  376.037001]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.042271]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  376.047365]  ? __lock_acquire+0x62f/0x4c20
[  376.051592]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  376.056957]  ? __lock_acquire+0x62f/0x4c20
[  376.061187]  ? should_fail+0x22d/0xd01
[  376.065068]  ? rcu_irq_exit+0x1a2/0x390
[  376.069040]  ? mark_held_locks+0x130/0x130
[  376.073270]  ? mark_held_locks+0x130/0x130
[  376.077498]  ? mark_held_locks+0xc7/0x130
[  376.081637]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  376.086647]  ? zap_class+0x640/0x640
[  376.090355]  ? print_usage_bug+0xc0/0xc0
[  376.094411]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.099943]  ? check_preemption_disabled+0x48/0x280
[  376.104956]  ? __lock_is_held+0xb5/0x140
[  376.109012]  __alloc_pages_nodemask+0xa80/0xde0
[  376.113674]  ? zap_class+0x640/0x640
[  376.117386]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  376.122406]  ? find_held_lock+0x36/0x1c0
[  376.126466]  ? ____cache_alloc_node+0x1c7/0x1e0
[  376.131130]  ? lock_downgrade+0x900/0x900
[  376.135311]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.140849]  cache_grow_begin+0xa5/0x8c0
[  376.144904]  ? do_raw_spin_unlock+0xa7/0x330
[  376.149319]  fallback_alloc+0x204/0x2e0
[  376.154133]  ____cache_alloc_node+0x1c7/0x1e0
[  376.158648]  kmem_cache_alloc_node+0xe3/0x730
[  376.163137]  ? ipv6_get_ifaddr+0x42e/0x620
[  376.167377]  __alloc_skb+0x119/0x770
[  376.171084]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.176354]  ? netdev_alloc_frag+0x1f0/0x1f0
[  376.180754]  ? lock_downgrade+0x900/0x900
[  376.184910]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.190438]  ? refcount_sub_and_test_checked+0x203/0x310
[  376.195883]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  376.201330]  ? addrconf_rs_timer+0x690/0x690
[  376.205738]  ndisc_alloc_skb+0x144/0x340
[  376.209800]  ndisc_send_rs+0x331/0x6e0
[  376.213685]  addrconf_rs_timer+0x314/0x690
[  376.217918]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.222158]  call_timer_fn+0x272/0x920
[  376.226039]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.230303]  ? process_timeout+0x40/0x40
[  376.234370]  ? mark_held_locks+0xc7/0x130
[  376.238511]  ? _raw_spin_unlock_irq+0x27/0x80
[  376.243108]  ? _raw_spin_unlock_irq+0x27/0x80
[  376.247597]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.251843]  ? lockdep_hardirqs_on+0x296/0x5b0
[  376.257159]  ? trace_hardirqs_on+0xbd/0x310
[  376.261471]  ? kasan_check_read+0x11/0x20
[  376.265613]  ? __run_timers+0x7da/0xc70
[  376.269584]  ? trace_hardirqs_off_caller+0x310/0x310
[  376.274686]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.278918]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.283155]  __run_timers+0x7e5/0xc70
[  376.287056]  ? timer_fixup_init+0x70/0x70
[  376.291201]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  376.296238]  ? zap_class+0x640/0x640
[  376.299949]  ? print_usage_bug+0xc0/0xc0
[  376.304009]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  376.309198]  ? find_held_lock+0x36/0x1c0
[  376.313254]  ? zap_class+0x640/0x640
[  376.316960]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.322488]  ? check_preemption_disabled+0x48/0x280
[  376.327506]  ? __lock_is_held+0xb5/0x140
[  376.331559]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.337103]  ? check_preemption_disabled+0x48/0x280
[  376.342117]  run_timer_softirq+0x52/0xb0
[  376.346171]  ? rcu_read_lock_sched_held+0x14f/0x180
[  376.351184]  __do_softirq+0x308/0xb7e
[  376.355506]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  376.359992]  ? lock_downgrade+0x900/0x900
[  376.364141]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  376.369247]  ? pvclock_read_flags+0x160/0x160
[  376.373740]  ? lapic_next_event+0x5a/0x90
[  376.377887]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.383420]  ? kvm_clock_read+0x18/0x30
[  376.387382]  ? kvm_sched_clock_read+0x9/0x20
[  376.391793]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.397321]  ? check_preemption_disabled+0x48/0x280
[  376.402340]  irq_exit+0x17f/0x1c0
[  376.405791]  smp_apic_timer_interrupt+0x1cb/0x760
[  376.410626]  ? smp_reschedule_interrupt+0x109/0x650
[  376.415636]  ? smp_call_function_single_interrupt+0x650/0x650
[  376.421510]  ? interrupt_entry+0xb5/0xc0
[  376.425564]  ? trace_hardirqs_off_caller+0xbb/0x310
[  376.430571]  ? trace_hardirqs_off_caller+0xbb/0x310
[  376.435580]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  376.440427]  ? trace_hardirqs_on_caller+0x310/0x310
[  376.445435]  ? trace_hardirqs_on_caller+0x310/0x310
[  376.450453]  ? task_prio+0x50/0x50
[  376.454715]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.460244]  ? check_preemption_disabled+0x48/0x280
[  376.465256]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  376.470097]  apic_timer_interrupt+0xf/0x20
[  376.474318]  </IRQ>
[  376.476567] RIP: 0010:dump_stack+0x358/0x39d
[  376.480969] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  376.499858] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  376.507554] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  376.514817] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  376.522077] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  376.529333] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  376.536591] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  376.543868]  ? dump_stack+0x34f/0x39d
[  376.547677]  ? dump_stack_print_info.cold.1+0x20/0x20
[  376.553669]  ? mark_held_locks+0x130/0x130
[  376.557895]  ? mark_held_locks+0x130/0x130
[  376.562140]  dump_header+0x27b/0xf72
[  376.565877]  ? pagefault_out_of_memory+0x197/0x197
[  376.570804]  ? __lock_acquire+0x62f/0x4c20
[  376.575033]  ? percpu_ref_get_many+0x240/0x240
[  376.579609]  ? print_usage_bug+0xc0/0xc0
[  376.583670]  ? zap_class+0x640/0x640
[  376.587380]  ? print_usage_bug+0xc0/0xc0
[  376.591430]  ? print_usage_bug+0xc0/0xc0
[  376.595488]  ? zap_class+0x640/0x640
[  376.599201]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.604735]  ? find_held_lock+0x36/0x1c0
[  376.608803]  ? mark_held_locks+0xc7/0x130
[  376.612943]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  376.618036]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  376.623129]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  376.627706]  ? trace_hardirqs_on+0xbd/0x310
[  376.632020]  ? kasan_check_read+0x11/0x20
[  376.636158]  ? ___ratelimit+0x3b4/0x672
[  376.640120]  ? trace_hardirqs_off_caller+0x310/0x310
[  376.645217]  ? trace_hardirqs_on+0x310/0x310
[  376.649619]  ? lock_downgrade+0x900/0x900
[  376.654720]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  376.659822]  ? ___ratelimit+0x3b9/0x672
[  376.663791]  ? idr_get_free+0xf70/0xf70
[  376.667761]  ? find_held_lock+0x36/0x1c0
[  376.671842]  oom_kill_process.cold.27+0x10/0x903
[  376.676593]  ? zap_class+0x640/0x640
[  376.680303]  ? check_preemption_disabled+0x48/0x280
[  376.685314]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  376.690234]  ? kasan_check_read+0x11/0x20
[  376.694377]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.699662]  ? oom_evaluate_task+0x540/0x540
[  376.704065]  ? find_held_lock+0x36/0x1c0
[  376.708122]  ? out_of_memory+0x974/0x1430
[  376.712267]  ? lock_downgrade+0x900/0x900
[  376.716408]  ? check_preemption_disabled+0x48/0x280
[  376.721421]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  376.726344]  ? kasan_check_read+0x11/0x20
[  376.730482]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.735842]  ? rcu_softirq_qs+0x20/0x20
[  376.739817]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.745343]  ? oom_evaluate_task+0x302/0x540
[  376.749750]  out_of_memory+0xa84/0x1430
[  376.754706]  ? oom_killer_disable+0x3a0/0x3a0
[  376.759190]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  376.764116]  ? __ww_mutex_check_waiters+0x160/0x160
[  376.769131]  __alloc_pages_slowpath+0x2354/0x2e10
[  376.773984]  ? warn_alloc+0x120/0x120
[  376.777772]  ? mark_held_locks+0x130/0x130
[  376.782007]  ? find_get_entry+0xaae/0x1120
[  376.786246]  ? filemap_map_pages+0x1a20/0x1a20
[  376.790832]  ? zap_class+0x640/0x640
[  376.794546]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.800078]  ? check_preemption_disabled+0x48/0x280
[  376.805086]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.810614]  ? should_fail+0x22d/0xd01
[  376.814495]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  376.819594]  ? zap_class+0x640/0x640
[  376.823327]  ? __lock_is_held+0xb5/0x140
[  376.827390]  ? mark_held_locks+0x130/0x130
[  376.831621]  ? lock_release+0xa00/0xa00
[  376.835590]  ? perf_trace_sched_process_exec+0x860/0x860
[  376.841034]  ? xa_load+0x2ba/0x460
[  376.844567]  ? lock_downgrade+0x900/0x900
[  376.848715]  ? __might_sleep+0x95/0x190
[  376.853663]  __alloc_pages_nodemask+0xa80/0xde0
[  376.858330]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  376.863338]  ? __page_cache_alloc+0x191/0x5c0
[  376.867825]  ? xa_load+0x2e1/0x460
[  376.871362]  ? xa_clear_mark+0x40/0x40
[  376.875244]  ? zap_class+0x640/0x640
[  376.878963]  ? zap_class+0x640/0x640
[  376.882669]  ? zap_class+0x640/0x640
[  376.886375]  ? __do_page_cache_readahead+0x663/0x810
[  376.891478]  ? find_held_lock+0x36/0x1c0
[  376.895544]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  376.901090]  alloc_pages_current+0x173/0x350
[  376.905498]  __page_cache_alloc+0x38c/0x5c0
[  376.909816]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  376.914746]  ? kasan_check_read+0x11/0x20
[  376.918886]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.924155]  ? generic_perform_write+0x6a0/0x6a0
[  376.928905]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.934435]  ? check_preemption_disabled+0x48/0x280
[  376.939450]  filemap_fault+0x1595/0x25f0
[  376.943518]  ? __lock_page_or_retry+0xa00/0xa00
[  376.948194]  ? mark_held_locks+0x130/0x130
[  376.953225]  ? filemap_map_pages+0xd6b/0x1a20
[  376.957719]  ? lock_downgrade+0x900/0x900
[  376.961866]  ? check_preemption_disabled+0x48/0x280
[  376.966875]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  376.971806]  ? kasan_check_read+0x11/0x20
[  376.975945]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.981213]  ? rcu_softirq_qs+0x20/0x20
[  376.985191]  ? filemap_map_pages+0xd92/0x1a20
[  376.989688]  ? find_get_entries_tag+0x1400/0x1400
[  376.994611]  ? debug_object_destroy+0x2b0/0x2b0
[  376.999281]  ? lock_pi_update_atomic+0x150/0x150
[  377.004027]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.009570]  ? lock_acquire+0x1ed/0x520
[  377.013539]  ? ext4_filemap_fault+0x7a/0xad
[  377.017860]  ? lock_release+0xa00/0xa00
[  377.021835]  ? perf_trace_sched_process_exec+0x860/0x860
[  377.027279]  ? print_usage_bug+0xc0/0xc0
[  377.031333]  ? print_usage_bug+0xc0/0xc0
[  377.035395]  ? down_read+0x8d/0x120
[  377.039011]  ? ext4_filemap_fault+0x7a/0xad
[  377.043323]  ? __down_interruptible+0x700/0x700
[  377.047988]  ext4_filemap_fault+0x82/0xad
[  377.052759]  __do_fault+0x100/0x6b0
[  377.056380]  ? pmd_devmap_trans_unstable+0x220/0x220
[  377.061476]  ? mark_held_locks+0x130/0x130
[  377.065709]  ? mark_held_locks+0x130/0x130
[  377.069942]  ? do_raw_spin_trylock+0x270/0x270
[  377.074520]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.080049]  __handle_mm_fault+0x3ea0/0x5be0
[  377.084446]  ? perf_trace_lock+0x7a0/0x7a0
[  377.088681]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  377.093524]  ? __switch_to_asm+0x34/0x70
[  377.097573]  ? __switch_to_asm+0x34/0x70
[  377.101638]  ? zap_class+0x640/0x640
[  377.105342]  ? zap_class+0x640/0x640
[  377.109049]  ? __x64_sys_futex+0x53e/0x6a0
[  377.113284]  ? find_held_lock+0x36/0x1c0
[  377.117347]  ? handle_mm_fault+0x42a/0xc70
[  377.121575]  ? lock_downgrade+0x900/0x900
[  377.125723]  ? check_preemption_disabled+0x48/0x280
[  377.130825]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  377.135749]  ? kasan_check_read+0x11/0x20
[  377.139889]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.145158]  ? rcu_softirq_qs+0x20/0x20
[  377.149135]  ? trace_hardirqs_off_caller+0x310/0x310
[  377.155023]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.160553]  ? check_preemption_disabled+0x48/0x280
[  377.165571]  handle_mm_fault+0x54f/0xc70
[  377.169629]  ? __handle_mm_fault+0x5be0/0x5be0
[  377.174210]  ? find_vma+0x34/0x190
[  377.177752]  __do_page_fault+0x5e8/0xe60
[  377.183280]  ? trace_hardirqs_off+0xb8/0x310
[  377.187693]  do_page_fault+0xf2/0x7e0
[  377.191493]  ? vmalloc_sync_all+0x30/0x30
[  377.195630]  ? error_entry+0x70/0xd0
[  377.199338]  ? trace_hardirqs_off_caller+0xbb/0x310
[  377.204351]  ? trace_hardirqs_on_caller+0xc0/0x310
[  377.209273]  ? syscall_return_slowpath+0x5e0/0x5e0
[  377.214194]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  377.219030]  ? trace_hardirqs_on_caller+0x310/0x310
[  377.224036]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  377.229482]  ? prepare_exit_to_usermode+0x291/0x3b0
[  377.234490]  ? page_fault+0x8/0x30
[  377.238028]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  377.242867]  ? page_fault+0x8/0x30
[  377.246399]  page_fault+0x1e/0x30
[  377.249844] RIP: 0033:0x45ddf3
[  377.253989] Code: Bad RIP value.
[  377.257349] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  377.262703] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  377.269967] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  377.277253] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  377.284514] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  377.291774] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  377.299231] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  377.299235] warn_alloc_show_mem: 1 callbacks suppressed
[  377.299241] Mem-Info:
[  377.305990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  377.311356] active_anon:54141 inactive_anon:292 isolated_anon:0
[  377.311356]  active_file:12 inactive_file:13 isolated_file:0
[  377.311356]  unevictable:0 dirty:0 writeback:0 unstable:0
[  377.311356]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  377.311356]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  377.311356]  free:13705 free_pcp:178 free_cma:0
[  377.313730] Call Trace:
[  377.313750]  dump_stack+0x244/0x39d
[  377.323112] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  377.356282]  ? dump_stack_print_info.cold.1+0x20/0x20
[  377.358832] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  377.362453]  warn_alloc.cold.116+0xb7/0x1bd
[  377.390079] lowmem_reserve[]: 0 2818 6321 6321
[  377.395260]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  377.421338] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  377.425650]  ? lock_downgrade+0x900/0x900
[  377.430195] lowmem_reserve[]: 0 0 3503 3503
[  377.435026]  ? trace_hardirqs_off+0xb8/0x310
[  377.463503] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  377.467655]  ? trace_hardirqs_off+0xb8/0x310
[  377.471941] lowmem_reserve[]: 0 0 0 0
[  377.476338]  __alloc_pages_slowpath+0x26e8/0x2e10
[  377.505274] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  377.509703]  ? warn_alloc+0x120/0x120
[  377.513452] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  377.518284]  ? print_usage_bug+0xc0/0xc0
[  377.531771] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  377.535557]  ? warn_alloc+0x120/0x120
[  377.550791] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  377.555155]  ? warn_alloc+0x120/0x120
[  377.569347] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  377.573136]  ? print_usage_bug+0xc0/0xc0
[  377.581940] 366 total pagecache pages
[  377.585727]  ? print_usage_bug+0xc0/0xc0
[  377.594279] 0 pages in swap cache
[  377.598315]  ? __lock_acquire+0x62f/0x4c20
[  377.602084] Swap cache stats: add 0, delete 0, find 0/0
[  377.606129]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.609566] Free swap  = 0kB
[  377.613876]  ? should_fail+0x22d/0xd01
[  377.619206] Total swap = 0kB
[  377.624747]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  377.627737] 1965979 pages RAM
[  377.631605]  ? __lock_acquire+0x62f/0x4c20
[  377.634595] 0 pages HighMem/MovableOnly
[  377.639688]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  377.642762] 342854 pages reserved
[  377.646984]  ? __lock_acquire+0x62f/0x4c20
[  377.650927] 0 pages cma reserved
[  377.656336]  ? should_fail+0x22d/0xd01
[  377.656350]  ? find_held_lock+0x36/0x1c0
[  377.659836] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  377.664015]  ? mark_held_locks+0x130/0x130
[  377.664035]  ? mark_held_locks+0x130/0x130
[  377.667424] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  377.671248]  ? zap_class+0x640/0x640
[  377.675280] syz-fuzzer cpuset=/ mems_allowed=0
[  377.681767]  ? mark_held_locks+0xc7/0x130
[  377.712768]  ? do_raw_spin_unlock+0xa7/0x330
[  377.717169]  ? zap_class+0x640/0x640
[  377.720877]  ? print_usage_bug+0xc0/0xc0
[  377.724936]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.730470]  ? check_preemption_disabled+0x48/0x280
[  377.735490]  ? __lock_is_held+0xb5/0x140
[  377.739550]  __alloc_pages_nodemask+0xa80/0xde0
[  377.744228]  ? zap_class+0x640/0x640
[  377.747934]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  377.753231]  ? find_held_lock+0x36/0x1c0
[  377.757293]  ? ____cache_alloc_node+0x1c7/0x1e0
[  377.761976]  ? lock_downgrade+0x900/0x900
[  377.766664]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.772217]  cache_grow_begin+0xa5/0x8c0
[  377.776268]  ? do_raw_spin_unlock+0xa7/0x330
[  377.780683]  fallback_alloc+0x204/0x2e0
[  377.784664]  ____cache_alloc_node+0x1c7/0x1e0
[  377.789172]  kmem_cache_alloc_node+0xe3/0x730
[  377.793665]  ? ipv6_get_ifaddr+0x42e/0x620
[  377.797911]  __alloc_skb+0x119/0x770
[  377.801612]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.806897]  ? netdev_alloc_frag+0x1f0/0x1f0
[  377.811297]  ? lock_downgrade+0x900/0x900
[  377.815445]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.820973]  ? refcount_sub_and_test_checked+0x203/0x310
[  377.826420]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  377.831865]  ? addrconf_rs_timer+0x690/0x690
[  377.836295]  ndisc_alloc_skb+0x144/0x340
[  377.840612]  ndisc_send_rs+0x331/0x6e0
[  377.844497]  addrconf_rs_timer+0x314/0x690
[  377.848734]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.853300]  call_timer_fn+0x272/0x920
[  377.857197]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.861426]  ? process_timeout+0x40/0x40
[  377.865484]  ? __run_timers+0x7da/0xc70
[  377.869450]  ? _raw_spin_unlock_irq+0x27/0x80
[  377.873934]  ? _raw_spin_unlock_irq+0x27/0x80
[  377.878418]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.882748]  ? lockdep_hardirqs_on+0x296/0x5b0
[  377.887328]  ? trace_hardirqs_on+0xbd/0x310
[  377.891654]  ? kasan_check_read+0x11/0x20
[  377.895803]  ? __run_timers+0x7da/0xc70
[  377.899810]  ? trace_hardirqs_off_caller+0x310/0x310
[  377.904913]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.909145]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.913367]  __run_timers+0x7e5/0xc70
[  377.917182]  ? timer_fixup_init+0x70/0x70
[  377.921325]  ? _raw_spin_unlock_irq+0x27/0x80
[  377.925806]  ? _raw_spin_unlock_irq+0x27/0x80
[  377.930442]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  377.935019]  ? trace_hardirqs_on+0xbd/0x310
[  377.939333]  ? kasan_check_read+0x11/0x20
[  377.943473]  ? finish_task_switch+0x1f4/0x910
[  377.947959]  ? trace_hardirqs_off_caller+0x310/0x310
[  377.953361]  ? compat_start_thread+0x80/0x80
[  377.957780]  ? pvclock_read_flags+0x160/0x160
[  377.962262]  ? __switch_to_asm+0x34/0x70
[  377.966314]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.971843]  ? check_preemption_disabled+0x48/0x280
[  377.976862]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  377.982395]  ? rcu_pm_notify+0xc0/0xc0
[  377.986279]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.991819]  ? check_preemption_disabled+0x48/0x280
[  377.996830]  run_timer_softirq+0x52/0xb0
[  378.000898]  ? rcu_read_lock_sched_held+0x14f/0x180
[  378.005909]  __do_softirq+0x308/0xb7e
[  378.009712]  ? trace_hardirqs_on_caller+0xc0/0x310
[  378.014633]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  378.019728]  ? trace_hardirqs_on+0x310/0x310
[  378.024132]  ? schedule+0x108/0x460
[  378.027762]  ? trace_hardirqs_off+0xb8/0x310
[  378.032166]  ? smpboot_thread_fn+0x68b/0xa00
[  378.036579]  ? trace_hardirqs_on+0x310/0x310
[  378.040986]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.046513]  ? check_preemption_disabled+0x48/0x280
[  378.051522]  ? takeover_tasklets+0xa90/0xa90
[  378.056253]  run_ksoftirqd+0x5e/0x100
[  378.060044]  smpboot_thread_fn+0x68b/0xa00
[  378.064272]  ? sort_range+0x30/0x30
[  378.067889]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  378.072985]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.078517]  ? __kthread_parkme+0xfb/0x1a0
[  378.082745]  ? sort_range+0x30/0x30
[  378.086360]  kthread+0x35a/0x440
[  378.089722]  ? kthread_stop+0x900/0x900
[  378.093692]  ret_from_fork+0x3a/0x50
[  378.097411] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  378.097474] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  378.104327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  378.104332] Call Trace:
[  378.104337]  <IRQ>
[  378.104353]  dump_stack+0x244/0x39d
[  378.104371]  ? dump_stack_print_info.cold.1+0x20/0x20
[  378.110882] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  378.120189]  warn_alloc.cold.116+0xb7/0x1bd
[  378.122741] ksoftirqd/0 cpuset=/ mems_allowed=0
[  378.124876]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  378.158482]  ? lock_downgrade+0x900/0x900
[  378.162625]  ? trace_hardirqs_off+0xb8/0x310
[  378.167057]  ? trace_hardirqs_off+0xb8/0x310
[  378.171465]  __alloc_pages_slowpath+0x26e8/0x2e10
[  378.176323]  ? warn_alloc+0x120/0x120
[  378.180115]  ? print_usage_bug+0xc0/0xc0
[  378.184174]  ? warn_alloc+0x120/0x120
[  378.187994]  ? warn_alloc+0x120/0x120
[  378.191800]  ? print_usage_bug+0xc0/0xc0
[  378.195853]  ? print_usage_bug+0xc0/0xc0
[  378.199910]  ? __lock_acquire+0x62f/0x4c20
[  378.204143]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.209762]  ? should_fail+0x22d/0xd01
[  378.213664]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  378.218763]  ? __lock_acquire+0x62f/0x4c20
[  378.223007]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  378.228116]  ? __lock_acquire+0x62f/0x4c20
[  378.232357]  ? should_fail+0x22d/0xd01
[  378.236236]  ? find_held_lock+0x36/0x1c0
[  378.240296]  ? mark_held_locks+0x130/0x130
[  378.244528]  ? mark_held_locks+0x130/0x130
[  378.248768]  ? zap_class+0x640/0x640
[  378.253474]  ? zap_class+0x640/0x640
[  378.257182]  ? print_usage_bug+0xc0/0xc0
[  378.261231]  ? do_raw_spin_unlock+0xa7/0x330
[  378.265629]  ? zap_class+0x640/0x640
[  378.269338]  ? print_usage_bug+0xc0/0xc0
[  378.273392]  ? wq_watchdog_touch+0x9c/0xfe
[  378.277624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.283263]  ? check_preemption_disabled+0x48/0x280
[  378.288281]  ? __lock_is_held+0xb5/0x140
[  378.292337]  __alloc_pages_nodemask+0xa80/0xde0
[  378.296998]  ? zap_class+0x640/0x640
[  378.300715]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  378.305734]  ? find_held_lock+0x36/0x1c0
[  378.309808]  ? ____cache_alloc_node+0x1c7/0x1e0
[  378.314469]  ? lock_downgrade+0x900/0x900
[  378.318617]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.324189]  cache_grow_begin+0xa5/0x8c0
[  378.328241]  ? do_raw_spin_unlock+0xa7/0x330
[  378.332652]  fallback_alloc+0x204/0x2e0
[  378.336626]  ____cache_alloc_node+0x1c7/0x1e0
[  378.341121]  kmem_cache_alloc_node+0xe3/0x730
[  378.345608]  ? ipv6_get_ifaddr+0x42e/0x620
[  378.349851]  __alloc_skb+0x119/0x770
[  378.354068]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.359345]  ? netdev_alloc_frag+0x1f0/0x1f0
[  378.363755]  ? lock_downgrade+0x900/0x900
[  378.367905]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.373432]  ? refcount_sub_and_test_checked+0x203/0x310
[  378.378878]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  378.384324]  ? addrconf_rs_timer+0x690/0x690
[  378.388739]  ndisc_alloc_skb+0x144/0x340
[  378.392795]  ndisc_send_rs+0x331/0x6e0
[  378.396680]  addrconf_rs_timer+0x314/0x690
[  378.400910]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.405144]  call_timer_fn+0x272/0x920
[  378.409028]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.413252]  ? process_timeout+0x40/0x40
[  378.417309]  ? mark_held_locks+0xc7/0x130
[  378.421454]  ? _raw_spin_unlock_irq+0x27/0x80
[  378.425940]  ? _raw_spin_unlock_irq+0x27/0x80
[  378.430423]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.434655]  ? lockdep_hardirqs_on+0x296/0x5b0
[  378.439235]  ? trace_hardirqs_on+0xbd/0x310
[  378.443551]  ? kasan_check_read+0x11/0x20
[  378.447690]  ? __run_timers+0x7da/0xc70
[  378.451676]  ? trace_hardirqs_off_caller+0x310/0x310
[  378.457065]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.461312]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.465536]  __run_timers+0x7e5/0xc70
[  378.469355]  ? timer_fixup_init+0x70/0x70
[  378.473501]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  378.478508]  ? zap_class+0x640/0x640
[  378.482217]  ? print_usage_bug+0xc0/0xc0
[  378.486274]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  378.491465]  ? find_held_lock+0x36/0x1c0
[  378.495523]  ? zap_class+0x640/0x640
[  378.499231]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.504758]  ? check_preemption_disabled+0x48/0x280
[  378.509775]  ? __lock_is_held+0xb5/0x140
[  378.513827]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.519352]  ? check_preemption_disabled+0x48/0x280
[  378.524357]  run_timer_softirq+0x52/0xb0
[  378.528411]  ? rcu_read_lock_sched_held+0x14f/0x180
[  378.533420]  __do_softirq+0x308/0xb7e
[  378.537223]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  378.541735]  ? lock_downgrade+0x900/0x900
[  378.545878]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  378.550976]  ? pvclock_read_flags+0x160/0x160
[  378.555753]  ? lapic_next_event+0x5a/0x90
[  378.559895]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.565426]  ? kvm_clock_read+0x18/0x30
[  378.569391]  ? kvm_sched_clock_read+0x9/0x20
[  378.573791]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.579315]  ? check_preemption_disabled+0x48/0x280
[  378.584328]  irq_exit+0x17f/0x1c0
[  378.587777]  smp_apic_timer_interrupt+0x1cb/0x760
[  378.592610]  ? smp_reschedule_interrupt+0x109/0x650
[  378.597631]  ? smp_call_function_single_interrupt+0x650/0x650
[  378.603503]  ? interrupt_entry+0xb5/0xc0
[  378.607555]  ? trace_hardirqs_off_caller+0xbb/0x310
[  378.612564]  ? trace_hardirqs_off_caller+0xbb/0x310
[  378.617578]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.622412]  ? trace_hardirqs_on_caller+0x310/0x310
[  378.627417]  ? trace_hardirqs_on_caller+0x310/0x310
[  378.632424]  ? task_prio+0x50/0x50
[  378.635958]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.641492]  ? check_preemption_disabled+0x48/0x280
[  378.646502]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.651360]  apic_timer_interrupt+0xf/0x20
[  378.656423]  </IRQ>
[  378.658655] RIP: 0010:dump_stack+0x358/0x39d
[  378.663055] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  378.681945] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  378.689643] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  378.696990] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  378.704333] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  378.711596] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  378.718859] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  378.726127]  ? dump_stack+0x34f/0x39d
[  378.729929]  ? dump_stack_print_info.cold.1+0x20/0x20
[  378.735112]  ? mark_held_locks+0x130/0x130
[  378.739343]  ? mark_held_locks+0x130/0x130
[  378.743574]  dump_header+0x27b/0xf72
[  378.747292]  ? pagefault_out_of_memory+0x197/0x197
[  378.753015]  ? __lock_acquire+0x62f/0x4c20
[  378.757244]  ? percpu_ref_get_many+0x240/0x240
[  378.761821]  ? print_usage_bug+0xc0/0xc0
[  378.765876]  ? zap_class+0x640/0x640
[  378.769592]  ? print_usage_bug+0xc0/0xc0
[  378.773648]  ? print_usage_bug+0xc0/0xc0
[  378.777704]  ? zap_class+0x640/0x640
[  378.781413]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.786941]  ? find_held_lock+0x36/0x1c0
[  378.791009]  ? mark_held_locks+0xc7/0x130
[  378.795154]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  378.800246]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  378.805337]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  378.809910]  ? trace_hardirqs_on+0xbd/0x310
[  378.814222]  ? kasan_check_read+0x11/0x20
[  378.818375]  ? ___ratelimit+0x3b4/0x672
[  378.822340]  ? trace_hardirqs_off_caller+0x310/0x310
[  378.827437]  ? trace_hardirqs_on+0x310/0x310
[  378.831837]  ? lock_downgrade+0x900/0x900
[  378.835982]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  378.841075]  ? ___ratelimit+0x3b9/0x672
[  378.845041]  ? idr_get_free+0xf70/0xf70
[  378.849006]  ? find_held_lock+0x36/0x1c0
[  378.853886]  oom_kill_process.cold.27+0x10/0x903
[  378.858636]  ? zap_class+0x640/0x640
[  378.862342]  ? check_preemption_disabled+0x48/0x280
[  378.867352]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  378.872278]  ? kasan_check_read+0x11/0x20
[  378.876417]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.881687]  ? oom_evaluate_task+0x540/0x540
[  378.886092]  ? find_held_lock+0x36/0x1c0
[  378.890164]  ? out_of_memory+0x974/0x1430
[  378.894312]  ? lock_downgrade+0x900/0x900
[  378.898450]  ? check_preemption_disabled+0x48/0x280
[  378.903459]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  378.908388]  ? kasan_check_read+0x11/0x20
[  378.912528]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.917797]  ? rcu_softirq_qs+0x20/0x20
[  378.921774]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.927301]  ? oom_evaluate_task+0x302/0x540
[  378.931708]  out_of_memory+0xa84/0x1430
[  378.935686]  ? oom_killer_disable+0x3a0/0x3a0
[  378.940182]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  378.945107]  ? __ww_mutex_check_waiters+0x160/0x160
[  378.950134]  __alloc_pages_slowpath+0x2354/0x2e10
[  378.955803]  ? warn_alloc+0x120/0x120
[  378.959616]  ? mark_held_locks+0x130/0x130
[  378.963849]  ? find_get_entry+0xaae/0x1120
[  378.968084]  ? filemap_map_pages+0x1a20/0x1a20
[  378.972663]  ? zap_class+0x640/0x640
[  378.976376]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.981909]  ? check_preemption_disabled+0x48/0x280
[  378.986917]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.992446]  ? should_fail+0x22d/0xd01
[  378.996331]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  379.001432]  ? zap_class+0x640/0x640
[  379.005160]  ? __lock_is_held+0xb5/0x140
[  379.009221]  ? mark_held_locks+0x130/0x130
[  379.013452]  ? lock_release+0xa00/0xa00
[  379.017419]  ? perf_trace_sched_process_exec+0x860/0x860
[  379.022862]  ? xa_load+0x2ba/0x460
[  379.026401]  ? lock_downgrade+0x900/0x900
[  379.030545]  ? __might_sleep+0x95/0x190
[  379.034516]  __alloc_pages_nodemask+0xa80/0xde0
[  379.039186]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  379.044194]  ? __page_cache_alloc+0x191/0x5c0
[  379.048679]  ? xa_load+0x2e1/0x460
[  379.053002]  ? xa_clear_mark+0x40/0x40
[  379.056888]  ? zap_class+0x640/0x640
[  379.060608]  ? zap_class+0x640/0x640
[  379.064315]  ? zap_class+0x640/0x640
[  379.068020]  ? __do_page_cache_readahead+0x663/0x810
[  379.073127]  ? find_held_lock+0x36/0x1c0
[  379.077189]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  379.082729]  alloc_pages_current+0x173/0x350
[  379.087143]  __page_cache_alloc+0x38c/0x5c0
[  379.091455]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  379.096379]  ? kasan_check_read+0x11/0x20
[  379.100519]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.105796]  ? generic_perform_write+0x6a0/0x6a0
[  379.110546]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.116078]  ? check_preemption_disabled+0x48/0x280
[  379.121101]  filemap_fault+0x1595/0x25f0
[  379.125167]  ? __lock_page_or_retry+0xa00/0xa00
[  379.129830]  ? mark_held_locks+0x130/0x130
[  379.134063]  ? filemap_map_pages+0xd6b/0x1a20
[  379.138553]  ? lock_downgrade+0x900/0x900
[  379.142692]  ? check_preemption_disabled+0x48/0x280
[  379.147702]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  379.153595]  ? kasan_check_read+0x11/0x20
[  379.157735]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.163006]  ? rcu_softirq_qs+0x20/0x20
[  379.166985]  ? filemap_map_pages+0xd92/0x1a20
[  379.171489]  ? find_get_entries_tag+0x1400/0x1400
[  379.176333]  ? debug_object_destroy+0x2b0/0x2b0
[  379.181104]  ? lock_pi_update_atomic+0x150/0x150
[  379.185855]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.191397]  ? lock_acquire+0x1ed/0x520
[  379.195368]  ? ext4_filemap_fault+0x7a/0xad
[  379.199689]  ? lock_release+0xa00/0xa00
[  379.203660]  ? perf_trace_sched_process_exec+0x860/0x860
[  379.209113]  ? print_usage_bug+0xc0/0xc0
[  379.213180]  ? print_usage_bug+0xc0/0xc0
[  379.217247]  ? down_read+0x8d/0x120
[  379.220865]  ? ext4_filemap_fault+0x7a/0xad
[  379.225185]  ? __down_interruptible+0x700/0x700
[  379.229858]  ext4_filemap_fault+0x82/0xad
[  379.234000]  __do_fault+0x100/0x6b0
[  379.237637]  ? pmd_devmap_trans_unstable+0x220/0x220
[  379.242735]  ? mark_held_locks+0x130/0x130
[  379.247050]  ? mark_held_locks+0x130/0x130
[  379.251375]  ? do_raw_spin_trylock+0x270/0x270
[  379.256715]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.262254]  __handle_mm_fault+0x3ea0/0x5be0
[  379.266654]  ? perf_trace_lock+0x7a0/0x7a0
[  379.270890]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  379.275819]  ? __switch_to_asm+0x34/0x70
[  379.279873]  ? __switch_to_asm+0x34/0x70
[  379.283935]  ? zap_class+0x640/0x640
[  379.287640]  ? zap_class+0x640/0x640
[  379.291344]  ? __x64_sys_futex+0x53e/0x6a0
[  379.295585]  ? find_held_lock+0x36/0x1c0
[  379.299649]  ? handle_mm_fault+0x42a/0xc70
[  379.303877]  ? lock_downgrade+0x900/0x900
[  379.308024]  ? check_preemption_disabled+0x48/0x280
[  379.313038]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  379.317960]  ? kasan_check_read+0x11/0x20
[  379.322104]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.327372]  ? rcu_softirq_qs+0x20/0x20
[  379.331334]  ? trace_hardirqs_off_caller+0x310/0x310
[  379.336431]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.341967]  ? check_preemption_disabled+0x48/0x280
[  379.346984]  handle_mm_fault+0x54f/0xc70
[  379.351039]  ? __handle_mm_fault+0x5be0/0x5be0
[  379.356358]  ? find_vma+0x34/0x190
[  379.359896]  __do_page_fault+0x5e8/0xe60
[  379.363955]  ? trace_hardirqs_off+0xb8/0x310
[  379.368363]  do_page_fault+0xf2/0x7e0
[  379.372162]  ? vmalloc_sync_all+0x30/0x30
[  379.376302]  ? error_entry+0x70/0xd0
[  379.380016]  ? trace_hardirqs_off_caller+0xbb/0x310
[  379.385038]  ? trace_hardirqs_on_caller+0xc0/0x310
[  379.389964]  ? syscall_return_slowpath+0x5e0/0x5e0
[  379.394888]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.399724]  ? trace_hardirqs_on_caller+0x310/0x310
[  379.404733]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  379.410183]  ? prepare_exit_to_usermode+0x291/0x3b0
[  379.415196]  ? page_fault+0x8/0x30
[  379.418733]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.423578]  ? page_fault+0x8/0x30
[  379.427115]  page_fault+0x1e/0x30
[  379.430556] RIP: 0033:0x45ddf3
[  379.433753] Code: Bad RIP value.
[  379.437193] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  379.442549] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  379.449818] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  379.457818] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  379.465077] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  379.472341] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  379.479623] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  379.479628] warn_alloc_show_mem: 1 callbacks suppressed
[  379.479634] Mem-Info:
[  379.486376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  379.491736] active_anon:54141 inactive_anon:292 isolated_anon:0
[  379.491736]  active_file:12 inactive_file:13 isolated_file:0
[  379.491736]  unevictable:0 dirty:0 writeback:0 unstable:0
[  379.491736]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  379.491736]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  379.491736]  free:13705 free_pcp:178 free_cma:0
[  379.494105] Call Trace:
[  379.503478] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  379.536321]  dump_stack+0x244/0x39d
[  379.538876] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  379.566799]  ? dump_stack_print_info.cold.1+0x20/0x20
[  379.570393] lowmem_reserve[]: 0 2818 6321 6321
[  379.596501]  warn_alloc.cold.116+0xb7/0x1bd
[  379.601651] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  379.606223]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  379.610515] lowmem_reserve[]: 0 0 3503 3503
[  379.638003]  ? lock_downgrade+0x900/0x900
[  379.642811] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  379.647123]  ? trace_hardirqs_off+0xb8/0x310
[  379.651230] lowmem_reserve[]: 0 0 0 0
[  379.680480]  ? trace_hardirqs_off+0xb8/0x310
[  379.684860] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  379.688657]  __alloc_pages_slowpath+0x26e8/0x2e10
[  379.693032] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  379.706579]  ? warn_alloc+0x120/0x120
[  379.711364] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  379.726610]  ? print_usage_bug+0xc0/0xc0
[  379.730388] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  379.744586]  ? warn_alloc+0x120/0x120
[  379.748626] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  379.757727]  ? warn_alloc+0x120/0x120
[  379.761499] 366 total pagecache pages
[  379.770530]  ? print_usage_bug+0xc0/0xc0
[  379.774315] 0 pages in swap cache
[  379.778097]  ? print_usage_bug+0xc0/0xc0
[  379.782128] Swap cache stats: add 0, delete 0, find 0/0
[  379.785572]  ? __lock_acquire+0x62f/0x4c20
[  379.789602] Free swap  = 0kB
[  379.794957]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.799154] Total swap = 0kB
[  379.799161] 1965979 pages RAM
[  379.802164]  ? should_fail+0x22d/0xd01
[  379.807669] 0 pages HighMem/MovableOnly
[  379.810675]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  379.813751] 342854 pages reserved
[  379.817621]  ? __lock_acquire+0x62f/0x4c20
[  379.821569] 0 pages cma reserved
[  379.826656]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  379.830130] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  379.834290]  ? __lock_acquire+0x62f/0x4c20
[  379.834302]  ? should_fail+0x22d/0xd01
[  379.834318]  ? find_held_lock+0x36/0x1c0
[  379.837713] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  379.842754]  ? mark_held_locks+0x130/0x130
[  379.849215] syz-fuzzer cpuset=/ mems_allowed=0
[  379.853730]  ? mark_held_locks+0x130/0x130
[  379.884839]  ? zap_class+0x640/0x640
[  379.888552]  ? zap_class+0x640/0x640
[  379.892269]  ? print_usage_bug+0xc0/0xc0
[  379.896321]  ? do_raw_spin_unlock+0xa7/0x330
[  379.900722]  ? zap_class+0x640/0x640
[  379.904431]  ? print_usage_bug+0xc0/0xc0
[  379.908499]  ? wq_watchdog_touch+0x9c/0xfe
[  379.912731]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.918263]  ? check_preemption_disabled+0x48/0x280
[  379.923284]  ? __lock_is_held+0xb5/0x140
[  379.927357]  __alloc_pages_nodemask+0xa80/0xde0
[  379.932220]  ? zap_class+0x640/0x640
[  379.935932]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  379.940950]  ? find_held_lock+0x36/0x1c0
[  379.945014]  ? ____cache_alloc_node+0x1c7/0x1e0
[  379.949677]  ? lock_downgrade+0x900/0x900
[  379.954144]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.959677]  cache_grow_begin+0xa5/0x8c0
[  379.963732]  ? do_raw_spin_unlock+0xa7/0x330
[  379.968141]  fallback_alloc+0x204/0x2e0
[  379.972129]  ____cache_alloc_node+0x1c7/0x1e0
[  379.976630]  kmem_cache_alloc_node+0xe3/0x730
[  379.981115]  ? ipv6_get_ifaddr+0x42e/0x620
[  379.985350]  __alloc_skb+0x119/0x770
[  379.989051]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.994321]  ? netdev_alloc_frag+0x1f0/0x1f0
[  379.998722]  ? lock_downgrade+0x900/0x900
[  380.002867]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.008395]  ? refcount_sub_and_test_checked+0x203/0x310
[  380.013842]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  380.019298]  ? addrconf_rs_timer+0x690/0x690
[  380.023703]  ndisc_alloc_skb+0x144/0x340
[  380.027758]  ndisc_send_rs+0x331/0x6e0
[  380.031646]  addrconf_rs_timer+0x314/0x690
[  380.035876]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.040106]  call_timer_fn+0x272/0x920
[  380.043985]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.048212]  ? process_timeout+0x40/0x40
[  380.052270]  ? __run_timers+0x7da/0xc70
[  380.056601]  ? _raw_spin_unlock_irq+0x27/0x80
[  380.061090]  ? _raw_spin_unlock_irq+0x27/0x80
[  380.065592]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.069833]  ? lockdep_hardirqs_on+0x296/0x5b0
[  380.074413]  ? trace_hardirqs_on+0xbd/0x310
[  380.078723]  ? kasan_check_read+0x11/0x20
[  380.082859]  ? __run_timers+0x7da/0xc70
[  380.086822]  ? trace_hardirqs_off_caller+0x310/0x310
[  380.091967]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.096196]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.100422]  __run_timers+0x7e5/0xc70
[  380.104225]  ? timer_fixup_init+0x70/0x70
[  380.108364]  ? _raw_spin_unlock_irq+0x27/0x80
[  380.112849]  ? _raw_spin_unlock_irq+0x27/0x80
[  380.117340]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  380.121919]  ? trace_hardirqs_on+0xbd/0x310
[  380.126228]  ? kasan_check_read+0x11/0x20
[  380.130370]  ? finish_task_switch+0x1f4/0x910
[  380.134871]  ? trace_hardirqs_off_caller+0x310/0x310
[  380.139964]  ? compat_start_thread+0x80/0x80
[  380.144381]  ? pvclock_read_flags+0x160/0x160
[  380.148868]  ? __switch_to_asm+0x34/0x70
[  380.153256]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.158803]  ? check_preemption_disabled+0x48/0x280
[  380.163818]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  380.169346]  ? rcu_pm_notify+0xc0/0xc0
[  380.173227]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.178759]  ? check_preemption_disabled+0x48/0x280
[  380.183779]  run_timer_softirq+0x52/0xb0
[  380.187923]  ? rcu_read_lock_sched_held+0x14f/0x180
[  380.192932]  __do_softirq+0x308/0xb7e
[  380.196733]  ? trace_hardirqs_on_caller+0xc0/0x310
[  380.201657]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  380.206758]  ? trace_hardirqs_on+0x310/0x310
[  380.211168]  ? schedule+0x108/0x460
[  380.214801]  ? trace_hardirqs_off+0xb8/0x310
[  380.219203]  ? smpboot_thread_fn+0x68b/0xa00
[  380.223607]  ? trace_hardirqs_on+0x310/0x310
[  380.228025]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.233557]  ? check_preemption_disabled+0x48/0x280
[  380.238568]  ? takeover_tasklets+0xa90/0xa90
[  380.242975]  run_ksoftirqd+0x5e/0x100
[  380.246768]  smpboot_thread_fn+0x68b/0xa00
[  380.251012]  ? sort_range+0x30/0x30
[  380.254913]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  380.260012]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.265549]  ? __kthread_parkme+0xfb/0x1a0
[  380.269785]  ? sort_range+0x30/0x30
[  380.273403]  kthread+0x35a/0x440
[  380.276767]  ? kthread_stop+0x900/0x900
[  380.280736]  ret_from_fork+0x3a/0x50
[  380.284459] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  380.284538] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  380.291380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  380.291385] Call Trace:
[  380.291391]  <IRQ>
[  380.291406]  dump_stack+0x244/0x39d
[  380.291424]  ? dump_stack_print_info.cold.1+0x20/0x20
[  380.297935] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  380.307237]  warn_alloc.cold.116+0xb7/0x1bd
[  380.309784] ksoftirqd/0 cpuset=/ mems_allowed=0
[  380.311924]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  380.344869]  ? lock_downgrade+0x900/0x900
[  380.349033]  ? trace_hardirqs_off+0xb8/0x310
[  380.354250]  ? trace_hardirqs_off+0xb8/0x310
[  380.358660]  __alloc_pages_slowpath+0x26e8/0x2e10
[  380.363577]  ? warn_alloc+0x120/0x120
[  380.367372]  ? print_usage_bug+0xc0/0xc0
[  380.371428]  ? warn_alloc+0x120/0x120
[  380.375222]  ? warn_alloc+0x120/0x120
[  380.379018]  ? print_usage_bug+0xc0/0xc0
[  380.383083]  ? print_usage_bug+0xc0/0xc0
[  380.387142]  ? __lock_acquire+0x62f/0x4c20
[  380.391373]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.396904]  ? should_fail+0x22d/0xd01
[  380.400787]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  380.405882]  ? __lock_acquire+0x62f/0x4c20
[  380.410115]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  380.415207]  ? __lock_acquire+0x62f/0x4c20
[  380.419435]  ? should_fail+0x22d/0xd01
[  380.423332]  ? find_held_lock+0x36/0x1c0
[  380.427408]  ? mark_held_locks+0x130/0x130
[  380.431638]  ? mark_held_locks+0x130/0x130
[  380.435860]  ? zap_class+0x640/0x640
[  380.439569]  ? zap_class+0x640/0x640
[  380.443279]  ? print_usage_bug+0xc0/0xc0
[  380.447333]  ? do_raw_spin_unlock+0xa7/0x330
[  380.451731]  ? zap_class+0x640/0x640
[  380.456236]  ? print_usage_bug+0xc0/0xc0
[  380.460288]  ? wq_watchdog_touch+0x9c/0xfe
[  380.464525]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.470056]  ? check_preemption_disabled+0x48/0x280
[  380.475074]  ? __lock_is_held+0xb5/0x140
[  380.479131]  __alloc_pages_nodemask+0xa80/0xde0
[  380.483790]  ? zap_class+0x640/0x640
[  380.487506]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  380.492535]  ? find_held_lock+0x36/0x1c0
[  380.496595]  ? ____cache_alloc_node+0x1c7/0x1e0
[  380.501252]  ? lock_downgrade+0x900/0x900
[  380.505398]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.510932]  cache_grow_begin+0xa5/0x8c0
[  380.514989]  ? do_raw_spin_unlock+0xa7/0x330
[  380.519403]  fallback_alloc+0x204/0x2e0
[  380.523475]  ____cache_alloc_node+0x1c7/0x1e0
[  380.527988]  kmem_cache_alloc_node+0xe3/0x730
[  380.532489]  ? ipv6_get_ifaddr+0x42e/0x620
[  380.536737]  __alloc_skb+0x119/0x770
[  380.540474]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.545756]  ? netdev_alloc_frag+0x1f0/0x1f0
[  380.550157]  ? lock_downgrade+0x900/0x900
[  380.555283]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.560814]  ? refcount_sub_and_test_checked+0x203/0x310
[  380.566258]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  380.571702]  ? addrconf_rs_timer+0x690/0x690
[  380.576115]  ndisc_alloc_skb+0x144/0x340
[  380.580194]  ndisc_send_rs+0x331/0x6e0
[  380.584083]  addrconf_rs_timer+0x314/0x690
[  380.588318]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.592564]  call_timer_fn+0x272/0x920
[  380.596571]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.600801]  ? process_timeout+0x40/0x40
[  380.604862]  ? mark_held_locks+0xc7/0x130
[  380.609001]  ? _raw_spin_unlock_irq+0x27/0x80
[  380.613501]  ? _raw_spin_unlock_irq+0x27/0x80
[  380.617983]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.622209]  ? lockdep_hardirqs_on+0x296/0x5b0
[  380.626784]  ? trace_hardirqs_on+0xbd/0x310
[  380.631098]  ? kasan_check_read+0x11/0x20
[  380.635235]  ? __run_timers+0x7da/0xc70
[  380.639199]  ? trace_hardirqs_off_caller+0x310/0x310
[  380.644300]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.648529]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.653522]  __run_timers+0x7e5/0xc70
[  380.657326]  ? timer_fixup_init+0x70/0x70
[  380.661469]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  380.666480]  ? zap_class+0x640/0x640
[  380.670197]  ? print_usage_bug+0xc0/0xc0
[  380.674255]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  380.679441]  ? find_held_lock+0x36/0x1c0
[  380.683506]  ? zap_class+0x640/0x640
[  380.687219]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.692749]  ? check_preemption_disabled+0x48/0x280
[  380.697776]  ? __lock_is_held+0xb5/0x140
[  380.701827]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.707356]  ? check_preemption_disabled+0x48/0x280
[  380.712371]  run_timer_softirq+0x52/0xb0
[  380.716427]  ? rcu_read_lock_sched_held+0x14f/0x180
[  380.721434]  __do_softirq+0x308/0xb7e
[  380.725237]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  380.729722]  ? lock_downgrade+0x900/0x900
[  380.733867]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  380.738967]  ? pvclock_read_flags+0x160/0x160
[  380.743458]  ? lapic_next_event+0x5a/0x90
[  380.747692]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.753978]  ? kvm_clock_read+0x18/0x30
[  380.757957]  ? kvm_sched_clock_read+0x9/0x20
[  380.762360]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.767907]  ? check_preemption_disabled+0x48/0x280
[  380.772927]  irq_exit+0x17f/0x1c0
[  380.776377]  smp_apic_timer_interrupt+0x1cb/0x760
[  380.781209]  ? smp_reschedule_interrupt+0x109/0x650
[  380.786218]  ? smp_call_function_single_interrupt+0x650/0x650
[  380.792096]  ? interrupt_entry+0xb5/0xc0
[  380.796154]  ? trace_hardirqs_off_caller+0xbb/0x310
[  380.801160]  ? trace_hardirqs_off_caller+0xbb/0x310
[  380.806170]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  380.811028]  ? trace_hardirqs_on_caller+0x310/0x310
[  380.816035]  ? trace_hardirqs_on_caller+0x310/0x310
[  380.821043]  ? task_prio+0x50/0x50
[  380.824576]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.830105]  ? check_preemption_disabled+0x48/0x280
[  380.835123]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  380.839970]  apic_timer_interrupt+0xf/0x20
[  380.844192]  </IRQ>
[  380.846421] RIP: 0010:dump_stack+0x358/0x39d
[  380.850842] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  380.870047] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  380.877748] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  380.885012] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  380.892270] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  380.899530] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  380.906788] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  380.914065]  ? dump_stack+0x34f/0x39d
[  380.917869]  ? dump_stack_print_info.cold.1+0x20/0x20
[  380.923053]  ? mark_held_locks+0x130/0x130
[  380.927280]  ? mark_held_locks+0x130/0x130
[  380.931514]  dump_header+0x27b/0xf72
[  380.935229]  ? pagefault_out_of_memory+0x197/0x197
[  380.940162]  ? __lock_acquire+0x62f/0x4c20
[  380.944388]  ? percpu_ref_get_many+0x240/0x240
[  380.948963]  ? print_usage_bug+0xc0/0xc0
[  380.953795]  ? zap_class+0x640/0x640
[  380.957505]  ? print_usage_bug+0xc0/0xc0
[  380.961561]  ? print_usage_bug+0xc0/0xc0
[  380.965617]  ? zap_class+0x640/0x640
[  380.969327]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.974861]  ? find_held_lock+0x36/0x1c0
[  380.978923]  ? mark_held_locks+0xc7/0x130
[  380.983063]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  380.988157]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  380.993249]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  380.997824]  ? trace_hardirqs_on+0xbd/0x310
[  381.002137]  ? kasan_check_read+0x11/0x20
[  381.006275]  ? ___ratelimit+0x3b4/0x672
[  381.010241]  ? trace_hardirqs_off_caller+0x310/0x310
[  381.015335]  ? trace_hardirqs_on+0x310/0x310
[  381.019737]  ? lock_downgrade+0x900/0x900
[  381.023882]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  381.028977]  ? ___ratelimit+0x3b9/0x672
[  381.032951]  ? idr_get_free+0xf70/0xf70
[  381.036922]  ? find_held_lock+0x36/0x1c0
[  381.040991]  oom_kill_process.cold.27+0x10/0x903
[  381.045740]  ? zap_class+0x640/0x640
[  381.049445]  ? check_preemption_disabled+0x48/0x280
[  381.055290]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  381.060212]  ? kasan_check_read+0x11/0x20
[  381.064356]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.069627]  ? oom_evaluate_task+0x540/0x540
[  381.074038]  ? find_held_lock+0x36/0x1c0
[  381.078101]  ? out_of_memory+0x974/0x1430
[  381.082243]  ? lock_downgrade+0x900/0x900
[  381.086389]  ? check_preemption_disabled+0x48/0x280
[  381.091399]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  381.096323]  ? kasan_check_read+0x11/0x20
[  381.100479]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.105747]  ? rcu_softirq_qs+0x20/0x20
[  381.109726]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.115254]  ? oom_evaluate_task+0x302/0x540
[  381.119659]  out_of_memory+0xa84/0x1430
[  381.123656]  ? oom_killer_disable+0x3a0/0x3a0
[  381.128148]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  381.133080]  ? __ww_mutex_check_waiters+0x160/0x160
[  381.138105]  __alloc_pages_slowpath+0x2354/0x2e10
[  381.142970]  ? warn_alloc+0x120/0x120
[  381.146768]  ? mark_held_locks+0x130/0x130
[  381.151007]  ? find_get_entry+0xaae/0x1120
[  381.156209]  ? filemap_map_pages+0x1a20/0x1a20
[  381.160789]  ? zap_class+0x640/0x640
[  381.164504]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.170038]  ? check_preemption_disabled+0x48/0x280
[  381.175050]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.180580]  ? should_fail+0x22d/0xd01
[  381.184473]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  381.189658]  ? zap_class+0x640/0x640
[  381.193388]  ? __lock_is_held+0xb5/0x140
[  381.197459]  ? mark_held_locks+0x130/0x130
[  381.201688]  ? lock_release+0xa00/0xa00
[  381.205658]  ? perf_trace_sched_process_exec+0x860/0x860
[  381.211100]  ? xa_load+0x2ba/0x460
[  381.214635]  ? lock_downgrade+0x900/0x900
[  381.218796]  ? __might_sleep+0x95/0x190
[  381.222768]  __alloc_pages_nodemask+0xa80/0xde0
[  381.227543]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  381.232554]  ? __page_cache_alloc+0x191/0x5c0
[  381.237045]  ? xa_load+0x2e1/0x460
[  381.240584]  ? xa_clear_mark+0x40/0x40
[  381.244474]  ? zap_class+0x640/0x640
[  381.248188]  ? zap_class+0x640/0x640
[  381.251893]  ? zap_class+0x640/0x640
[  381.256364]  ? __do_page_cache_readahead+0x663/0x810
[  381.261471]  ? find_held_lock+0x36/0x1c0
[  381.265533]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  381.271070]  alloc_pages_current+0x173/0x350
[  381.275485]  __page_cache_alloc+0x38c/0x5c0
[  381.279804]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  381.284725]  ? kasan_check_read+0x11/0x20
[  381.288864]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.294139]  ? generic_perform_write+0x6a0/0x6a0
[  381.298888]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.304422]  ? check_preemption_disabled+0x48/0x280
[  381.309460]  filemap_fault+0x1595/0x25f0
[  381.313549]  ? __lock_page_or_retry+0xa00/0xa00
[  381.318213]  ? mark_held_locks+0x130/0x130
[  381.322456]  ? filemap_map_pages+0xd6b/0x1a20
[  381.326944]  ? lock_downgrade+0x900/0x900
[  381.331093]  ? check_preemption_disabled+0x48/0x280
[  381.336106]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  381.341030]  ? kasan_check_read+0x11/0x20
[  381.345169]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.350436]  ? rcu_softirq_qs+0x20/0x20
[  381.355241]  ? filemap_map_pages+0xd92/0x1a20
[  381.359739]  ? find_get_entries_tag+0x1400/0x1400
[  381.364582]  ? debug_object_destroy+0x2b0/0x2b0
[  381.369244]  ? lock_pi_update_atomic+0x150/0x150
[  381.373991]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.379534]  ? lock_acquire+0x1ed/0x520
[  381.383502]  ? ext4_filemap_fault+0x7a/0xad
[  381.387821]  ? lock_release+0xa00/0xa00
[  381.391792]  ? perf_trace_sched_process_exec+0x860/0x860
[  381.397238]  ? print_usage_bug+0xc0/0xc0
[  381.401296]  ? print_usage_bug+0xc0/0xc0
[  381.405364]  ? down_read+0x8d/0x120
[  381.408980]  ? ext4_filemap_fault+0x7a/0xad
[  381.413300]  ? __down_interruptible+0x700/0x700
[  381.417975]  ext4_filemap_fault+0x82/0xad
[  381.422134]  __do_fault+0x100/0x6b0
[  381.425757]  ? pmd_devmap_trans_unstable+0x220/0x220
[  381.430857]  ? mark_held_locks+0x130/0x130
[  381.435083]  ? mark_held_locks+0x130/0x130
[  381.439312]  ? do_raw_spin_trylock+0x270/0x270
[  381.443897]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.449431]  __handle_mm_fault+0x3ea0/0x5be0
[  381.454615]  ? perf_trace_lock+0x7a0/0x7a0
[  381.458850]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  381.463692]  ? __switch_to_asm+0x34/0x70
[  381.467828]  ? __switch_to_asm+0x34/0x70
[  381.471892]  ? zap_class+0x640/0x640
[  381.475596]  ? zap_class+0x640/0x640
[  381.479302]  ? __x64_sys_futex+0x53e/0x6a0
[  381.483534]  ? find_held_lock+0x36/0x1c0
[  381.487598]  ? handle_mm_fault+0x42a/0xc70
[  381.491828]  ? lock_downgrade+0x900/0x900
[  381.495968]  ? check_preemption_disabled+0x48/0x280
[  381.500983]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  381.505902]  ? kasan_check_read+0x11/0x20
[  381.510044]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.515313]  ? rcu_softirq_qs+0x20/0x20
[  381.519278]  ? trace_hardirqs_off_caller+0x310/0x310
[  381.524374]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.529905]  ? check_preemption_disabled+0x48/0x280
[  381.534921]  handle_mm_fault+0x54f/0xc70
[  381.538980]  ? __handle_mm_fault+0x5be0/0x5be0
[  381.543555]  ? find_vma+0x34/0x190
[  381.547093]  __do_page_fault+0x5e8/0xe60
[  381.551145]  ? trace_hardirqs_off+0xb8/0x310
[  381.556352]  do_page_fault+0xf2/0x7e0
[  381.560149]  ? vmalloc_sync_all+0x30/0x30
[  381.564286]  ? error_entry+0x70/0xd0
[  381.567994]  ? trace_hardirqs_off_caller+0xbb/0x310
[  381.572995]  ? trace_hardirqs_on_caller+0xc0/0x310
[  381.577937]  ? syscall_return_slowpath+0x5e0/0x5e0
[  381.582954]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  381.587793]  ? trace_hardirqs_on_caller+0x310/0x310
[  381.592802]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  381.598249]  ? prepare_exit_to_usermode+0x291/0x3b0
[  381.603254]  ? page_fault+0x8/0x30
[  381.606806]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  381.611643]  ? page_fault+0x8/0x30
[  381.615175]  page_fault+0x1e/0x30
[  381.618621] RIP: 0033:0x45ddf3
[  381.621827] Code: Bad RIP value.
[  381.625189] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  381.630548] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  381.637812] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  381.645070] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  381.652329] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  381.660590] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  381.667869] warn_alloc_show_mem: 1 callbacks suppressed
[  381.667878] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  381.667880] Mem-Info:
[  381.667909] active_anon:54141 inactive_anon:292 isolated_anon:0
[  381.667909]  active_file:12 inactive_file:13 isolated_file:0
[  381.667909]  unevictable:0 dirty:0 writeback:0 unstable:0
[  381.667909]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  381.667909]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  381.667909]  free:13705 free_pcp:178 free_cma:0
[  381.673240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  381.679993] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  381.682376] Call Trace:
[  381.715233] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  381.724585]  dump_stack+0x244/0x39d
[  381.752308] lowmem_reserve[]: 0 2818 6321 6321
[  381.755188]  ? dump_stack_print_info.cold.1+0x20/0x20
[  381.781542] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  381.785170]  warn_alloc.cold.116+0xb7/0x1bd
[  381.789702] lowmem_reserve[]: 0 0 3503 3503
[  381.794899]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  381.822361] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  381.826675]  ? lock_downgrade+0x900/0x900
[  381.830973] lowmem_reserve[]: 0 0 0 0
[  381.835805]  ? trace_hardirqs_off+0xb8/0x310
[  381.865038] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  381.869180]  ? trace_hardirqs_off+0xb8/0x310
[  381.872943] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  381.877352]  __alloc_pages_slowpath+0x26e8/0x2e10
[  381.890852] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  381.895271]  ? warn_alloc+0x120/0x120
[  381.910485] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  381.915306]  ? print_usage_bug+0xc0/0xc0
[  381.929496] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  381.933444]  ? warn_alloc+0x120/0x120
[  381.942252] 366 total pagecache pages
[  381.946295]  ? warn_alloc+0x120/0x120
[  381.955623] 0 pages in swap cache
[  381.959413]  ? print_usage_bug+0xc0/0xc0
[  381.963194] Swap cache stats: add 0, delete 0, find 0/0
[  381.966977]  ? print_usage_bug+0xc0/0xc0
[  381.970397] Free swap  = 0kB
[  381.974452]  ? __lock_acquire+0x62f/0x4c20
[  381.979786] Total swap = 0kB
[  381.983836]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.986823] 1965979 pages RAM
[  381.991041]  ? should_fail+0x22d/0xd01
[  381.994027] 0 pages HighMem/MovableOnly
[  381.999549]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  382.002627] 342854 pages reserved
[  382.006500]  ? __lock_acquire+0x62f/0x4c20
[  382.010443] 0 pages cma reserved
[  382.015534]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  382.019011] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  382.023172]  ? __lock_acquire+0x62f/0x4c20
[  382.023184]  ? should_fail+0x22d/0xd01
[  382.023199]  ? find_held_lock+0x36/0x1c0
[  382.026677] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  382.031717]  ? mark_held_locks+0x130/0x130
[  382.038174] syz-fuzzer cpuset=/ mems_allowed=0
[  382.042403]  ? mark_held_locks+0x130/0x130
[  382.073789]  ? zap_class+0x640/0x640
[  382.077496]  ? zap_class+0x640/0x640
[  382.081203]  ? print_usage_bug+0xc0/0xc0
[  382.085274]  ? do_raw_spin_unlock+0xa7/0x330
[  382.089693]  ? zap_class+0x640/0x640
[  382.093405]  ? print_usage_bug+0xc0/0xc0
[  382.097464]  ? wq_watchdog_touch+0x9c/0xfe
[  382.101695]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.107230]  ? check_preemption_disabled+0x48/0x280
[  382.112247]  ? __lock_is_held+0xb5/0x140
[  382.116306]  __alloc_pages_nodemask+0xa80/0xde0
[  382.120969]  ? zap_class+0x640/0x640
[  382.124684]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  382.129723]  ? find_held_lock+0x36/0x1c0
[  382.133789]  ? ____cache_alloc_node+0x1c7/0x1e0
[  382.138451]  ? lock_downgrade+0x900/0x900
[  382.142607]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.148145]  cache_grow_begin+0xa5/0x8c0
[  382.152218]  ? do_raw_spin_unlock+0xa7/0x330
[  382.156956]  fallback_alloc+0x204/0x2e0
[  382.160931]  ____cache_alloc_node+0x1c7/0x1e0
[  382.165432]  kmem_cache_alloc_node+0xe3/0x730
[  382.169921]  ? ipv6_get_ifaddr+0x42e/0x620
[  382.174157]  __alloc_skb+0x119/0x770
[  382.177867]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.183142]  ? netdev_alloc_frag+0x1f0/0x1f0
[  382.187542]  ? lock_downgrade+0x900/0x900
[  382.191705]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.197233]  ? refcount_sub_and_test_checked+0x203/0x310
[  382.202689]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  382.208154]  ? addrconf_rs_timer+0x690/0x690
[  382.212583]  ndisc_alloc_skb+0x144/0x340
[  382.216646]  ndisc_send_rs+0x331/0x6e0
[  382.220532]  addrconf_rs_timer+0x314/0x690
[  382.224763]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.229001]  call_timer_fn+0x272/0x920
[  382.232879]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.237107]  ? process_timeout+0x40/0x40
[  382.241167]  ? __run_timers+0x7da/0xc70
[  382.245143]  ? _raw_spin_unlock_irq+0x27/0x80
[  382.249630]  ? _raw_spin_unlock_irq+0x27/0x80
[  382.254451]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.258679]  ? lockdep_hardirqs_on+0x296/0x5b0
[  382.263252]  ? trace_hardirqs_on+0xbd/0x310
[  382.267576]  ? kasan_check_read+0x11/0x20
[  382.271717]  ? __run_timers+0x7da/0xc70
[  382.275685]  ? trace_hardirqs_off_caller+0x310/0x310
[  382.280783]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.285010]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.289235]  __run_timers+0x7e5/0xc70
[  382.293042]  ? timer_fixup_init+0x70/0x70
[  382.297177]  ? _raw_spin_unlock_irq+0x27/0x80
[  382.301668]  ? _raw_spin_unlock_irq+0x27/0x80
[  382.306157]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  382.310733]  ? trace_hardirqs_on+0xbd/0x310
[  382.315049]  ? kasan_check_read+0x11/0x20
[  382.319191]  ? finish_task_switch+0x1f4/0x910
[  382.323680]  ? trace_hardirqs_off_caller+0x310/0x310
[  382.328879]  ? compat_start_thread+0x80/0x80
[  382.333300]  ? pvclock_read_flags+0x160/0x160
[  382.337788]  ? __switch_to_asm+0x34/0x70
[  382.341841]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.347372]  ? check_preemption_disabled+0x48/0x280
[  382.352431]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  382.358305]  ? rcu_pm_notify+0xc0/0xc0
[  382.362188]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.367758]  ? check_preemption_disabled+0x48/0x280
[  382.372775]  run_timer_softirq+0x52/0xb0
[  382.376836]  ? rcu_read_lock_sched_held+0x14f/0x180
[  382.381847]  __do_softirq+0x308/0xb7e
[  382.385645]  ? trace_hardirqs_on_caller+0xc0/0x310
[  382.390573]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  382.395668]  ? trace_hardirqs_on+0x310/0x310
[  382.400071]  ? schedule+0x108/0x460
[  382.403697]  ? trace_hardirqs_off+0xb8/0x310
[  382.408096]  ? smpboot_thread_fn+0x68b/0xa00
[  382.412503]  ? trace_hardirqs_on+0x310/0x310
[  382.416905]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.422439]  ? check_preemption_disabled+0x48/0x280
[  382.427450]  ? takeover_tasklets+0xa90/0xa90
[  382.431855]  run_ksoftirqd+0x5e/0x100
[  382.435647]  smpboot_thread_fn+0x68b/0xa00
[  382.439882]  ? sort_range+0x30/0x30
[  382.443499]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  382.448594]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.454433]  ? __kthread_parkme+0xfb/0x1a0
[  382.458658]  ? sort_range+0x30/0x30
[  382.462286]  kthread+0x35a/0x440
[  382.465645]  ? kthread_stop+0x900/0x900
[  382.469613]  ret_from_fork+0x3a/0x50
[  382.473332] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  382.473420] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  382.480262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  382.486806] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  382.496059] Call Trace:
[  382.506350] ksoftirqd/0 cpuset=/ mems_allowed=0
[  382.508917]  <IRQ>
[  382.515696]  dump_stack+0x244/0x39d
[  382.519332]  ? dump_stack_print_info.cold.1+0x20/0x20
[  382.524526]  warn_alloc.cold.116+0xb7/0x1bd
[  382.528842]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  382.533685]  ? lock_downgrade+0x900/0x900
[  382.537837]  ? trace_hardirqs_off+0xb8/0x310
[  382.542248]  ? trace_hardirqs_off+0xb8/0x310
[  382.546655]  __alloc_pages_slowpath+0x26e8/0x2e10
[  382.551512]  ? warn_alloc+0x120/0x120
[  382.556103]  ? print_usage_bug+0xc0/0xc0
[  382.560158]  ? warn_alloc+0x120/0x120
[  382.563971]  ? warn_alloc+0x120/0x120
[  382.567778]  ? print_usage_bug+0xc0/0xc0
[  382.571850]  ? print_usage_bug+0xc0/0xc0
[  382.575913]  ? __lock_acquire+0x62f/0x4c20
[  382.580156]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.585692]  ? should_fail+0x22d/0xd01
[  382.589574]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  382.594673]  ? __lock_acquire+0x62f/0x4c20
[  382.598907]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  382.604029]  ? __lock_acquire+0x62f/0x4c20
[  382.608258]  ? should_fail+0x22d/0xd01
[  382.612161]  ? find_held_lock+0x36/0x1c0
[  382.616222]  ? mark_held_locks+0x130/0x130
[  382.620457]  ? mark_held_locks+0x130/0x130
[  382.624680]  ? zap_class+0x640/0x640
[  382.628387]  ? zap_class+0x640/0x640
[  382.632096]  ? print_usage_bug+0xc0/0xc0
[  382.636146]  ? do_raw_spin_unlock+0xa7/0x330
[  382.640548]  ? zap_class+0x640/0x640
[  382.644253]  ? print_usage_bug+0xc0/0xc0
[  382.648307]  ? wq_watchdog_touch+0x9c/0xfe
[  382.652540]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.658790]  ? check_preemption_disabled+0x48/0x280
[  382.663808]  ? __lock_is_held+0xb5/0x140
[  382.667863]  __alloc_pages_nodemask+0xa80/0xde0
[  382.672525]  ? zap_class+0x640/0x640
[  382.676237]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  382.681254]  ? find_held_lock+0x36/0x1c0
[  382.685315]  ? ____cache_alloc_node+0x1c7/0x1e0
[  382.689981]  ? lock_downgrade+0x900/0x900
[  382.694130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.699664]  cache_grow_begin+0xa5/0x8c0
[  382.703715]  ? do_raw_spin_unlock+0xa7/0x330
[  382.708122]  fallback_alloc+0x204/0x2e0
[  382.712093]  ____cache_alloc_node+0x1c7/0x1e0
[  382.716582]  kmem_cache_alloc_node+0xe3/0x730
[  382.721074]  ? ipv6_get_ifaddr+0x42e/0x620
[  382.725309]  __alloc_skb+0x119/0x770
[  382.729013]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.734285]  ? netdev_alloc_frag+0x1f0/0x1f0
[  382.738685]  ? lock_downgrade+0x900/0x900
[  382.742832]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.748368]  ? refcount_sub_and_test_checked+0x203/0x310
[  382.754617]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  382.760076]  ? addrconf_rs_timer+0x690/0x690
[  382.764490]  ndisc_alloc_skb+0x144/0x340
[  382.768549]  ndisc_send_rs+0x331/0x6e0
[  382.772431]  addrconf_rs_timer+0x314/0x690
[  382.776663]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.780905]  call_timer_fn+0x272/0x920
[  382.784782]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.789008]  ? process_timeout+0x40/0x40
[  382.793070]  ? mark_held_locks+0xc7/0x130
[  382.797214]  ? _raw_spin_unlock_irq+0x27/0x80
[  382.801700]  ? _raw_spin_unlock_irq+0x27/0x80
[  382.806185]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.810426]  ? lockdep_hardirqs_on+0x296/0x5b0
[  382.815007]  ? trace_hardirqs_on+0xbd/0x310
[  382.819320]  ? kasan_check_read+0x11/0x20
[  382.823468]  ? __run_timers+0x7da/0xc70
[  382.827436]  ? trace_hardirqs_off_caller+0x310/0x310
[  382.832535]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.836767]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.840989]  __run_timers+0x7e5/0xc70
[  382.844794]  ? timer_fixup_init+0x70/0x70
[  382.848933]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  382.854265]  ? zap_class+0x640/0x640
[  382.857979]  ? print_usage_bug+0xc0/0xc0
[  382.862035]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  382.867223]  ? find_held_lock+0x36/0x1c0
[  382.871285]  ? zap_class+0x640/0x640
[  382.874998]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.880530]  ? check_preemption_disabled+0x48/0x280
[  382.885552]  ? __lock_is_held+0xb5/0x140
[  382.889608]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.895138]  ? check_preemption_disabled+0x48/0x280
[  382.900152]  run_timer_softirq+0x52/0xb0
[  382.904203]  ? rcu_read_lock_sched_held+0x14f/0x180
[  382.909239]  __do_softirq+0x308/0xb7e
[  382.913037]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  382.917528]  ? lock_downgrade+0x900/0x900
[  382.921672]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  382.926891]  ? pvclock_read_flags+0x160/0x160
[  382.931382]  ? lapic_next_event+0x5a/0x90
[  382.935523]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.941056]  ? kvm_clock_read+0x18/0x30
[  382.945023]  ? kvm_sched_clock_read+0x9/0x20
[  382.949425]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.955839]  ? check_preemption_disabled+0x48/0x280
[  382.960862]  irq_exit+0x17f/0x1c0
[  382.964319]  smp_apic_timer_interrupt+0x1cb/0x760
[  382.969163]  ? smp_reschedule_interrupt+0x109/0x650
[  382.974173]  ? smp_call_function_single_interrupt+0x650/0x650
[  382.980048]  ? interrupt_entry+0xb5/0xc0
[  382.984105]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.989116]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.994126]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.998960]  ? trace_hardirqs_on_caller+0x310/0x310
[  383.003978]  ? trace_hardirqs_on_caller+0x310/0x310
[  383.008984]  ? task_prio+0x50/0x50
[  383.012518]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.018050]  ? check_preemption_disabled+0x48/0x280
[  383.023056]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  383.027903]  apic_timer_interrupt+0xf/0x20
[  383.032122]  </IRQ>
[  383.034361] RIP: 0010:dump_stack+0x358/0x39d
[  383.038762] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  383.057929] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  383.065625] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  383.072884] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  383.080156] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  383.087411] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  383.094675] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  383.101952]  ? dump_stack+0x34f/0x39d
[  383.105766]  ? dump_stack_print_info.cold.1+0x20/0x20
[  383.110951]  ? mark_held_locks+0x130/0x130
[  383.115175]  ? mark_held_locks+0x130/0x130
[  383.119405]  dump_header+0x27b/0xf72
[  383.123140]  ? pagefault_out_of_memory+0x197/0x197
[  383.128069]  ? __lock_acquire+0x62f/0x4c20
[  383.132296]  ? percpu_ref_get_many+0x240/0x240
[  383.136886]  ? print_usage_bug+0xc0/0xc0
[  383.140961]  ? zap_class+0x640/0x640
[  383.144677]  ? print_usage_bug+0xc0/0xc0
[  383.148732]  ? print_usage_bug+0xc0/0xc0
[  383.153083]  ? zap_class+0x640/0x640
[  383.156790]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.162330]  ? find_held_lock+0x36/0x1c0
[  383.166393]  ? mark_held_locks+0xc7/0x130
[  383.170539]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  383.175633]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  383.180729]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  383.185302]  ? trace_hardirqs_on+0xbd/0x310
[  383.189625]  ? kasan_check_read+0x11/0x20
[  383.193764]  ? ___ratelimit+0x3b4/0x672
[  383.197734]  ? trace_hardirqs_off_caller+0x310/0x310
[  383.202828]  ? trace_hardirqs_on+0x310/0x310
[  383.207230]  ? lock_downgrade+0x900/0x900
[  383.211372]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  383.216469]  ? ___ratelimit+0x3b9/0x672
[  383.220437]  ? idr_get_free+0xf70/0xf70
[  383.224399]  ? find_held_lock+0x36/0x1c0
[  383.228459]  oom_kill_process.cold.27+0x10/0x903
[  383.233205]  ? zap_class+0x640/0x640
[  383.236914]  ? check_preemption_disabled+0x48/0x280
[  383.241929]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  383.246851]  ? kasan_check_read+0x11/0x20
[  383.250992]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.257010]  ? oom_evaluate_task+0x540/0x540
[  383.261416]  ? find_held_lock+0x36/0x1c0
[  383.265481]  ? out_of_memory+0x974/0x1430
[  383.269624]  ? lock_downgrade+0x900/0x900
[  383.273768]  ? check_preemption_disabled+0x48/0x280
[  383.278780]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  383.283704]  ? kasan_check_read+0x11/0x20
[  383.287850]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.293128]  ? rcu_softirq_qs+0x20/0x20
[  383.297100]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.302628]  ? oom_evaluate_task+0x302/0x540
[  383.307034]  out_of_memory+0xa84/0x1430
[  383.311012]  ? oom_killer_disable+0x3a0/0x3a0
[  383.315508]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  383.320435]  ? __ww_mutex_check_waiters+0x160/0x160
[  383.325459]  __alloc_pages_slowpath+0x2354/0x2e10
[  383.330326]  ? warn_alloc+0x120/0x120
[  383.334121]  ? mark_held_locks+0x130/0x130
[  383.338357]  ? find_get_entry+0xaae/0x1120
[  383.342593]  ? filemap_map_pages+0x1a20/0x1a20
[  383.347171]  ? zap_class+0x640/0x640
[  383.350887]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.357185]  ? check_preemption_disabled+0x48/0x280
[  383.362197]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.367725]  ? should_fail+0x22d/0xd01
[  383.371611]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  383.376708]  ? zap_class+0x640/0x640
[  383.380431]  ? __lock_is_held+0xb5/0x140
[  383.384492]  ? mark_held_locks+0x130/0x130
[  383.388725]  ? lock_release+0xa00/0xa00
[  383.392703]  ? perf_trace_sched_process_exec+0x860/0x860
[  383.398146]  ? xa_load+0x2ba/0x460
[  383.401680]  ? lock_downgrade+0x900/0x900
[  383.405827]  ? __might_sleep+0x95/0x190
[  383.409896]  __alloc_pages_nodemask+0xa80/0xde0
[  383.414586]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  383.419593]  ? __page_cache_alloc+0x191/0x5c0
[  383.424079]  ? xa_load+0x2e1/0x460
[  383.427611]  ? xa_clear_mark+0x40/0x40
[  383.431494]  ? zap_class+0x640/0x640
[  383.435210]  ? zap_class+0x640/0x640
[  383.438916]  ? zap_class+0x640/0x640
[  383.442632]  ? __do_page_cache_readahead+0x663/0x810
[  383.447730]  ? find_held_lock+0x36/0x1c0
[  383.451789]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  383.457831]  alloc_pages_current+0x173/0x350
[  383.462241]  __page_cache_alloc+0x38c/0x5c0
[  383.466558]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  383.471478]  ? kasan_check_read+0x11/0x20
[  383.475618]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.480897]  ? generic_perform_write+0x6a0/0x6a0
[  383.485645]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.491174]  ? check_preemption_disabled+0x48/0x280
[  383.496192]  filemap_fault+0x1595/0x25f0
[  383.500260]  ? __lock_page_or_retry+0xa00/0xa00
[  383.504921]  ? mark_held_locks+0x130/0x130
[  383.509157]  ? filemap_map_pages+0xd6b/0x1a20
[  383.513644]  ? lock_downgrade+0x900/0x900
[  383.517787]  ? check_preemption_disabled+0x48/0x280
[  383.522797]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  383.527719]  ? kasan_check_read+0x11/0x20
[  383.531858]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.537129]  ? rcu_softirq_qs+0x20/0x20
[  383.541106]  ? filemap_map_pages+0xd92/0x1a20
[  383.545601]  ? find_get_entries_tag+0x1400/0x1400
[  383.550435]  ? debug_object_destroy+0x2b0/0x2b0
[  383.555871]  ? lock_pi_update_atomic+0x150/0x150
[  383.560640]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.566184]  ? lock_acquire+0x1ed/0x520
[  383.570148]  ? ext4_filemap_fault+0x7a/0xad
[  383.574464]  ? lock_release+0xa00/0xa00
[  383.578429]  ? perf_trace_sched_process_exec+0x860/0x860
[  383.583874]  ? print_usage_bug+0xc0/0xc0
[  383.587928]  ? print_usage_bug+0xc0/0xc0
[  383.591993]  ? down_read+0x8d/0x120
[  383.595609]  ? ext4_filemap_fault+0x7a/0xad
[  383.599925]  ? __down_interruptible+0x700/0x700
[  383.604596]  ext4_filemap_fault+0x82/0xad
[  383.608740]  __do_fault+0x100/0x6b0
[  383.612366]  ? pmd_devmap_trans_unstable+0x220/0x220
[  383.617463]  ? mark_held_locks+0x130/0x130
[  383.621695]  ? mark_held_locks+0x130/0x130
[  383.625921]  ? do_raw_spin_trylock+0x270/0x270
[  383.630505]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.636039]  __handle_mm_fault+0x3ea0/0x5be0
[  383.640436]  ? perf_trace_lock+0x7a0/0x7a0
[  383.644666]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  383.649507]  ? __switch_to_asm+0x34/0x70
[  383.654565]  ? __switch_to_asm+0x34/0x70
[  383.658654]  ? zap_class+0x640/0x640
[  383.662362]  ? zap_class+0x640/0x640
[  383.666073]  ? __x64_sys_futex+0x53e/0x6a0
[  383.670313]  ? find_held_lock+0x36/0x1c0
[  383.674379]  ? handle_mm_fault+0x42a/0xc70
[  383.678610]  ? lock_downgrade+0x900/0x900
[  383.682755]  ? check_preemption_disabled+0x48/0x280
[  383.687765]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  383.692690]  ? kasan_check_read+0x11/0x20
[  383.696833]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.702106]  ? rcu_softirq_qs+0x20/0x20
[  383.706073]  ? trace_hardirqs_off_caller+0x310/0x310
[  383.711171]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.716701]  ? check_preemption_disabled+0x48/0x280
[  383.721717]  handle_mm_fault+0x54f/0xc70
[  383.725774]  ? __handle_mm_fault+0x5be0/0x5be0
[  383.730357]  ? find_vma+0x34/0x190
[  383.733910]  __do_page_fault+0x5e8/0xe60
[  383.737965]  ? trace_hardirqs_off+0xb8/0x310
[  383.742378]  do_page_fault+0xf2/0x7e0
[  383.746174]  ? vmalloc_sync_all+0x30/0x30
[  383.750311]  ? error_entry+0x70/0xd0
[  383.754812]  ? trace_hardirqs_off_caller+0xbb/0x310
[  383.759825]  ? trace_hardirqs_on_caller+0xc0/0x310
[  383.765023]  ? syscall_return_slowpath+0x5e0/0x5e0
[  383.769943]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  383.774783]  ? trace_hardirqs_on_caller+0x310/0x310
[  383.779817]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  383.785263]  ? prepare_exit_to_usermode+0x291/0x3b0
[  383.790278]  ? page_fault+0x8/0x30
[  383.793840]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  383.798680]  ? page_fault+0x8/0x30
[  383.802211]  page_fault+0x1e/0x30
[  383.805656] RIP: 0033:0x45ddf3
[  383.808848] Code: Bad RIP value.
[  383.812202] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  383.817560] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  383.824822] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  383.832086] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  383.839360] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  383.846623] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  383.854902] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  383.854907] warn_alloc_show_mem: 1 callbacks suppressed
[  383.854913] Mem-Info:
[  383.861654] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  383.867012] active_anon:54141 inactive_anon:292 isolated_anon:0
[  383.867012]  active_file:12 inactive_file:13 isolated_file:0
[  383.867012]  unevictable:0 dirty:0 writeback:0 unstable:0
[  383.867012]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  383.867012]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  383.867012]  free:13705 free_pcp:178 free_cma:0
[  383.869383] Call Trace:
[  383.878754] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  383.911608]  dump_stack+0x244/0x39d
[  383.914160] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  383.942039]  ? dump_stack_print_info.cold.1+0x20/0x20
[  383.945649] lowmem_reserve[]: 0 2818 6321 6321
[  383.972092]  warn_alloc.cold.116+0xb7/0x1bd
[  383.977244] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  383.981814]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  383.986100] lowmem_reserve[]: 0 0 3503 3503
[  384.013586]  ? lock_downgrade+0x900/0x900
[  384.018394] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  384.022707]  ? trace_hardirqs_off+0xb8/0x310
[  384.026821] lowmem_reserve[]: 0 0 0 0
[  384.056155]  ? trace_hardirqs_off+0xb8/0x310
[  384.060548] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  384.064342]  __alloc_pages_slowpath+0x26e8/0x2e10
[  384.068714] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  384.082243]  ? warn_alloc+0x120/0x120
[  384.087037] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  384.102295]  ? print_usage_bug+0xc0/0xc0
[  384.106065] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  384.120257]  ? warn_alloc+0x120/0x120
[  384.124299] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  384.133116]  ? warn_alloc+0x120/0x120
[  384.136889] 366 total pagecache pages
[  384.145443]  ? print_usage_bug+0xc0/0xc0
[  384.149219] 0 pages in swap cache
[  384.153216]  ? print_usage_bug+0xc0/0xc0
[  384.157249] Swap cache stats: add 0, delete 0, find 0/0
[  384.160686]  ? __lock_acquire+0x62f/0x4c20
[  384.164720] Free swap  = 0kB
[  384.170068]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.174282] Total swap = 0kB
[  384.177296]  ? should_fail+0x22d/0xd01
[  384.182809] 1965979 pages RAM
[  384.185813]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  384.189671] 0 pages HighMem/MovableOnly
[  384.192762]  ? __lock_acquire+0x62f/0x4c20
[  384.197830] 342854 pages reserved
[  384.197837] 0 pages cma reserved
[  384.201799]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  384.206055] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  384.209434]  ? __lock_acquire+0x62f/0x4c20
[  384.209448]  ? should_fail+0x22d/0xd01
[  384.213478] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  384.218497]  ? find_held_lock+0x36/0x1c0
[  384.224958] syz-fuzzer cpuset=/ mems_allowed=0
[  384.229180]  ? mark_held_locks+0x130/0x130
[  384.256431]  ? mark_held_locks+0x130/0x130
[  384.260657]  ? zap_class+0x640/0x640
[  384.264366]  ? mark_held_locks+0xc7/0x130
[  384.268501]  ? do_raw_spin_unlock+0xa7/0x330
[  384.272918]  ? zap_class+0x640/0x640
[  384.276628]  ? print_usage_bug+0xc0/0xc0
[  384.280700]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.286231]  ? check_preemption_disabled+0x48/0x280
[  384.291279]  ? __lock_is_held+0xb5/0x140
[  384.295339]  __alloc_pages_nodemask+0xa80/0xde0
[  384.300003]  ? zap_class+0x640/0x640
[  384.303717]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  384.308734]  ? find_held_lock+0x36/0x1c0
[  384.312808]  ? ____cache_alloc_node+0x1c7/0x1e0
[  384.317469]  ? lock_downgrade+0x900/0x900
[  384.321704]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.327237]  cache_grow_begin+0xa5/0x8c0
[  384.331300]  ? do_raw_spin_unlock+0xa7/0x330
[  384.335707]  fallback_alloc+0x204/0x2e0
[  384.339684]  ____cache_alloc_node+0x1c7/0x1e0
[  384.344177]  kmem_cache_alloc_node+0xe3/0x730
[  384.348668]  ? ipv6_get_ifaddr+0x42e/0x620
[  384.353170]  __alloc_skb+0x119/0x770
[  384.356876]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.362150]  ? netdev_alloc_frag+0x1f0/0x1f0
[  384.366553]  ? lock_downgrade+0x900/0x900
[  384.370701]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.376233]  ? refcount_sub_and_test_checked+0x203/0x310
[  384.381690]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  384.387134]  ? addrconf_rs_timer+0x690/0x690
[  384.391545]  ndisc_alloc_skb+0x144/0x340
[  384.395604]  ndisc_send_rs+0x331/0x6e0
[  384.399494]  addrconf_rs_timer+0x314/0x690
[  384.403730]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.407967]  call_timer_fn+0x272/0x920
[  384.411844]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.416156]  ? process_timeout+0x40/0x40
[  384.420214]  ? __run_timers+0x7da/0xc70
[  384.424185]  ? _raw_spin_unlock_irq+0x27/0x80
[  384.428666]  ? _raw_spin_unlock_irq+0x27/0x80
[  384.433153]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.437403]  ? lockdep_hardirqs_on+0x296/0x5b0
[  384.441981]  ? trace_hardirqs_on+0xbd/0x310
[  384.446292]  ? kasan_check_read+0x11/0x20
[  384.450428]  ? __run_timers+0x7da/0xc70
[  384.454742]  ? trace_hardirqs_off_caller+0x310/0x310
[  384.459841]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.464070]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.468300]  __run_timers+0x7e5/0xc70
[  384.472104]  ? timer_fixup_init+0x70/0x70
[  384.476250]  ? _raw_spin_unlock_irq+0x27/0x80
[  384.480745]  ? _raw_spin_unlock_irq+0x27/0x80
[  384.485249]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  384.489829]  ? trace_hardirqs_on+0xbd/0x310
[  384.494145]  ? kasan_check_read+0x11/0x20
[  384.498296]  ? finish_task_switch+0x1f4/0x910
[  384.502784]  ? trace_hardirqs_off_caller+0x310/0x310
[  384.507880]  ? compat_start_thread+0x80/0x80
[  384.512303]  ? pvclock_read_flags+0x160/0x160
[  384.516792]  ? __switch_to_asm+0x34/0x70
[  384.520847]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.526381]  ? check_preemption_disabled+0x48/0x280
[  384.531401]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  384.536934]  ? rcu_pm_notify+0xc0/0xc0
[  384.540813]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.546342]  ? check_preemption_disabled+0x48/0x280
[  384.551360]  run_timer_softirq+0x52/0xb0
[  384.555765]  ? rcu_read_lock_sched_held+0x14f/0x180
[  384.560776]  __do_softirq+0x308/0xb7e
[  384.564575]  ? trace_hardirqs_on_caller+0xc0/0x310
[  384.569502]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  384.574598]  ? trace_hardirqs_on+0x310/0x310
[  384.579004]  ? schedule+0x108/0x460
[  384.582631]  ? trace_hardirqs_off+0xb8/0x310
[  384.587035]  ? smpboot_thread_fn+0x68b/0xa00
[  384.591439]  ? trace_hardirqs_on+0x310/0x310
[  384.595845]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.601378]  ? check_preemption_disabled+0x48/0x280
[  384.606390]  ? takeover_tasklets+0xa90/0xa90
[  384.610804]  run_ksoftirqd+0x5e/0x100
[  384.614599]  smpboot_thread_fn+0x68b/0xa00
[  384.618830]  ? sort_range+0x30/0x30
[  384.622448]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  384.627546]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.633077]  ? __kthread_parkme+0xfb/0x1a0
[  384.637308]  ? sort_range+0x30/0x30
[  384.640926]  kthread+0x35a/0x440
[  384.644287]  ? kthread_stop+0x900/0x900
[  384.648260]  ret_from_fork+0x3a/0x50
[  384.651983] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  384.652063] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  384.659869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  384.666427] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  384.675670] Call Trace:
[  384.685955] ksoftirqd/0 cpuset=/ mems_allowed=0
[  384.688516]  <IRQ>
[  384.695305]  dump_stack+0x244/0x39d
[  384.698929]  ? dump_stack_print_info.cold.1+0x20/0x20
[  384.704123]  warn_alloc.cold.116+0xb7/0x1bd
[  384.708443]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  384.713284]  ? lock_downgrade+0x900/0x900
[  384.717437]  ? trace_hardirqs_off+0xb8/0x310
[  384.721855]  ? trace_hardirqs_off+0xb8/0x310
[  384.726265]  __alloc_pages_slowpath+0x26e8/0x2e10
[  384.731126]  ? warn_alloc+0x120/0x120
[  384.734922]  ? print_usage_bug+0xc0/0xc0
[  384.738996]  ? warn_alloc+0x120/0x120
[  384.742791]  ? warn_alloc+0x120/0x120
[  384.746585]  ? print_usage_bug+0xc0/0xc0
[  384.750652]  ? kvm_clock_read+0x18/0x30
[  384.755615]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  384.760623]  ? print_usage_bug+0xc0/0xc0
[  384.764676]  ? __lock_acquire+0x62f/0x4c20
[  384.768904]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.774427]  ? should_fail+0x22d/0xd01
[  384.778303]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.783575]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  384.788668]  ? __lock_acquire+0x62f/0x4c20
[  384.792894]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  384.797989]  ? __lock_acquire+0x62f/0x4c20
[  384.802226]  ? should_fail+0x22d/0xd01
[  384.806107]  ? rcu_irq_exit+0x1a2/0x390
[  384.810101]  ? mark_held_locks+0x130/0x130
[  384.814330]  ? mark_held_locks+0x130/0x130
[  384.818562]  ? mark_held_locks+0xc7/0x130
[  384.822707]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  384.827743]  ? zap_class+0x640/0x640
[  384.831449]  ? print_usage_bug+0xc0/0xc0
[  384.835502]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.841029]  ? check_preemption_disabled+0x48/0x280
[  384.846062]  ? __lock_is_held+0xb5/0x140
[  384.850122]  __alloc_pages_nodemask+0xa80/0xde0
[  384.855609]  ? zap_class+0x640/0x640
[  384.859337]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  384.864351]  ? find_held_lock+0x36/0x1c0
[  384.868410]  ? ____cache_alloc_node+0x1c7/0x1e0
[  384.873076]  ? lock_downgrade+0x900/0x900
[  384.877231]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.882765]  cache_grow_begin+0xa5/0x8c0
[  384.886823]  ? do_raw_spin_unlock+0xa7/0x330
[  384.891236]  fallback_alloc+0x204/0x2e0
[  384.895217]  ____cache_alloc_node+0x1c7/0x1e0
[  384.899711]  kmem_cache_alloc_node+0xe3/0x730
[  384.904206]  ? ipv6_get_ifaddr+0x42e/0x620
[  384.908458]  __alloc_skb+0x119/0x770
[  384.912163]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.917436]  ? netdev_alloc_frag+0x1f0/0x1f0
[  384.921835]  ? lock_downgrade+0x900/0x900
[  384.925994]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.931523]  ? refcount_sub_and_test_checked+0x203/0x310
[  384.936968]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  384.942427]  ? addrconf_rs_timer+0x690/0x690
[  384.946843]  ndisc_alloc_skb+0x144/0x340
[  384.950902]  ndisc_send_rs+0x331/0x6e0
[  384.955302]  addrconf_rs_timer+0x314/0x690
[  384.959538]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.963771]  call_timer_fn+0x272/0x920
[  384.967652]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.971877]  ? process_timeout+0x40/0x40
[  384.975944]  ? mark_held_locks+0xc7/0x130
[  384.980086]  ? _raw_spin_unlock_irq+0x27/0x80
[  384.984569]  ? _raw_spin_unlock_irq+0x27/0x80
[  384.989055]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.993296]  ? lockdep_hardirqs_on+0x296/0x5b0
[  384.997883]  ? trace_hardirqs_on+0xbd/0x310
[  385.002192]  ? kasan_check_read+0x11/0x20
[  385.006340]  ? __run_timers+0x7da/0xc70
[  385.010307]  ? trace_hardirqs_off_caller+0x310/0x310
[  385.015420]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.019689]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.023909]  __run_timers+0x7e5/0xc70
[  385.027709]  ? timer_fixup_init+0x70/0x70
[  385.031856]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  385.036862]  ? zap_class+0x640/0x640
[  385.040573]  ? print_usage_bug+0xc0/0xc0
[  385.044630]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  385.049828]  ? find_held_lock+0x36/0x1c0
[  385.054638]  ? zap_class+0x640/0x640
[  385.058346]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.063878]  ? check_preemption_disabled+0x48/0x280
[  385.068986]  ? __lock_is_held+0xb5/0x140
[  385.073037]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.078577]  ? check_preemption_disabled+0x48/0x280
[  385.083584]  run_timer_softirq+0x52/0xb0
[  385.087637]  ? rcu_read_lock_sched_held+0x14f/0x180
[  385.092646]  __do_softirq+0x308/0xb7e
[  385.096444]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  385.100932]  ? lock_downgrade+0x900/0x900
[  385.105076]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  385.110173]  ? pvclock_read_flags+0x160/0x160
[  385.114671]  ? lapic_next_event+0x5a/0x90
[  385.118811]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.124343]  ? kvm_clock_read+0x18/0x30
[  385.128427]  ? kvm_sched_clock_read+0x9/0x20
[  385.132826]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.138349]  ? check_preemption_disabled+0x48/0x280
[  385.143360]  irq_exit+0x17f/0x1c0
[  385.146806]  smp_apic_timer_interrupt+0x1cb/0x760
[  385.151636]  ? smp_reschedule_interrupt+0x109/0x650
[  385.157414]  ? smp_call_function_single_interrupt+0x650/0x650
[  385.163285]  ? interrupt_entry+0xb5/0xc0
[  385.167339]  ? trace_hardirqs_off_caller+0xbb/0x310
[  385.172345]  ? trace_hardirqs_off_caller+0xbb/0x310
[  385.177359]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.182201]  ? trace_hardirqs_on_caller+0x310/0x310
[  385.187214]  ? trace_hardirqs_on_caller+0x310/0x310
[  385.192227]  ? task_prio+0x50/0x50
[  385.195764]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.201295]  ? check_preemption_disabled+0x48/0x280
[  385.206312]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.211151]  apic_timer_interrupt+0xf/0x20
[  385.215374]  </IRQ>
[  385.217620] RIP: 0010:dump_stack+0x358/0x39d
[  385.222022] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  385.240910] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  385.248611] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  385.256629] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  385.263892] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  385.271152] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  385.278410] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  385.285686]  ? dump_stack+0x34f/0x39d
[  385.289493]  ? dump_stack_print_info.cold.1+0x20/0x20
[  385.294681]  ? mark_held_locks+0x130/0x130
[  385.298906]  ? mark_held_locks+0x130/0x130
[  385.303132]  dump_header+0x27b/0xf72
[  385.306850]  ? pagefault_out_of_memory+0x197/0x197
[  385.311775]  ? __lock_acquire+0x62f/0x4c20
[  385.315998]  ? percpu_ref_get_many+0x240/0x240
[  385.320594]  ? print_usage_bug+0xc0/0xc0
[  385.324654]  ? zap_class+0x640/0x640
[  385.328365]  ? print_usage_bug+0xc0/0xc0
[  385.332416]  ? print_usage_bug+0xc0/0xc0
[  385.336476]  ? zap_class+0x640/0x640
[  385.340191]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.345732]  ? find_held_lock+0x36/0x1c0
[  385.349794]  ? mark_held_locks+0xc7/0x130
[  385.354710]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  385.359804]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  385.364902]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  385.369493]  ? trace_hardirqs_on+0xbd/0x310
[  385.373808]  ? kasan_check_read+0x11/0x20
[  385.377954]  ? ___ratelimit+0x3b4/0x672
[  385.381924]  ? trace_hardirqs_off_caller+0x310/0x310
[  385.387021]  ? trace_hardirqs_on+0x310/0x310
[  385.391429]  ? lock_downgrade+0x900/0x900
[  385.395573]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  385.400667]  ? ___ratelimit+0x3b9/0x672
[  385.404640]  ? idr_get_free+0xf70/0xf70
[  385.408607]  ? find_held_lock+0x36/0x1c0
[  385.412667]  oom_kill_process.cold.27+0x10/0x903
[  385.417418]  ? zap_class+0x640/0x640
[  385.421123]  ? check_preemption_disabled+0x48/0x280
[  385.426136]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  385.431057]  ? kasan_check_read+0x11/0x20
[  385.435205]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.440481]  ? oom_evaluate_task+0x540/0x540
[  385.444888]  ? find_held_lock+0x36/0x1c0
[  385.448955]  ? out_of_memory+0x974/0x1430
[  385.453096]  ? lock_downgrade+0x900/0x900
[  385.458038]  ? check_preemption_disabled+0x48/0x280
[  385.463049]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  385.467968]  ? kasan_check_read+0x11/0x20
[  385.472109]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.477379]  ? rcu_softirq_qs+0x20/0x20
[  385.481346]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.486875]  ? oom_evaluate_task+0x302/0x540
[  385.491281]  out_of_memory+0xa84/0x1430
[  385.495255]  ? oom_killer_disable+0x3a0/0x3a0
[  385.499748]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  385.504674]  ? __ww_mutex_check_waiters+0x160/0x160
[  385.509711]  __alloc_pages_slowpath+0x2354/0x2e10
[  385.514571]  ? warn_alloc+0x120/0x120
[  385.518365]  ? mark_held_locks+0x130/0x130
[  385.522594]  ? find_get_entry+0xaae/0x1120
[  385.526834]  ? filemap_map_pages+0x1a20/0x1a20
[  385.531430]  ? zap_class+0x640/0x640
[  385.535143]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.540679]  ? check_preemption_disabled+0x48/0x280
[  385.545694]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.551225]  ? should_fail+0x22d/0xd01
[  385.555867]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  385.560967]  ? zap_class+0x640/0x640
[  385.564699]  ? __lock_is_held+0xb5/0x140
[  385.568771]  ? mark_held_locks+0x130/0x130
[  385.572999]  ? lock_release+0xa00/0xa00
[  385.576990]  ? perf_trace_sched_process_exec+0x860/0x860
[  385.582431]  ? xa_load+0x2ba/0x460
[  385.585966]  ? lock_downgrade+0x900/0x900
[  385.590106]  ? __might_sleep+0x95/0x190
[  385.594073]  __alloc_pages_nodemask+0xa80/0xde0
[  385.598741]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  385.603753]  ? __page_cache_alloc+0x191/0x5c0
[  385.608247]  ? xa_load+0x2e1/0x460
[  385.611783]  ? xa_clear_mark+0x40/0x40
[  385.615667]  ? zap_class+0x640/0x640
[  385.619468]  ? zap_class+0x640/0x640
[  385.623182]  ? zap_class+0x640/0x640
[  385.626891]  ? __do_page_cache_readahead+0x663/0x810
[  385.631989]  ? find_held_lock+0x36/0x1c0
[  385.636045]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  385.641580]  alloc_pages_current+0x173/0x350
[  385.645984]  __page_cache_alloc+0x38c/0x5c0
[  385.650295]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  385.656029]  ? kasan_check_read+0x11/0x20
[  385.660176]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.665448]  ? generic_perform_write+0x6a0/0x6a0
[  385.670201]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.675732]  ? check_preemption_disabled+0x48/0x280
[  385.680747]  filemap_fault+0x1595/0x25f0
[  385.684815]  ? __lock_page_or_retry+0xa00/0xa00
[  385.689483]  ? mark_held_locks+0x130/0x130
[  385.693712]  ? filemap_map_pages+0xd6b/0x1a20
[  385.698199]  ? lock_downgrade+0x900/0x900
[  385.702359]  ? check_preemption_disabled+0x48/0x280
[  385.707366]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  385.712288]  ? kasan_check_read+0x11/0x20
[  385.716427]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.721696]  ? rcu_softirq_qs+0x20/0x20
[  385.725700]  ? filemap_map_pages+0xd92/0x1a20
[  385.730199]  ? find_get_entries_tag+0x1400/0x1400
[  385.735036]  ? debug_object_destroy+0x2b0/0x2b0
[  385.739714]  ? lock_pi_update_atomic+0x150/0x150
[  385.744476]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.750014]  ? lock_acquire+0x1ed/0x520
[  385.754494]  ? ext4_filemap_fault+0x7a/0xad
[  385.758822]  ? lock_release+0xa00/0xa00
[  385.763008]  ? perf_trace_sched_process_exec+0x860/0x860
[  385.768461]  ? print_usage_bug+0xc0/0xc0
[  385.772513]  ? print_usage_bug+0xc0/0xc0
[  385.776578]  ? down_read+0x8d/0x120
[  385.780202]  ? ext4_filemap_fault+0x7a/0xad
[  385.784518]  ? __down_interruptible+0x700/0x700
[  385.789190]  ext4_filemap_fault+0x82/0xad
[  385.793331]  __do_fault+0x100/0x6b0
[  385.796954]  ? pmd_devmap_trans_unstable+0x220/0x220
[  385.802055]  ? mark_held_locks+0x130/0x130
[  385.806288]  ? mark_held_locks+0x130/0x130
[  385.810515]  ? do_raw_spin_trylock+0x270/0x270
[  385.815096]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.820627]  __handle_mm_fault+0x3ea0/0x5be0
[  385.825029]  ? perf_trace_lock+0x7a0/0x7a0
[  385.829265]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  385.834104]  ? __switch_to_asm+0x34/0x70
[  385.838163]  ? __switch_to_asm+0x34/0x70
[  385.842238]  ? zap_class+0x640/0x640
[  385.845945]  ? zap_class+0x640/0x640
[  385.849649]  ? __x64_sys_futex+0x53e/0x6a0
[  385.854809]  ? find_held_lock+0x36/0x1c0
[  385.858869]  ? handle_mm_fault+0x42a/0xc70
[  385.863101]  ? lock_downgrade+0x900/0x900
[  385.867243]  ? check_preemption_disabled+0x48/0x280
[  385.872269]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  385.877278]  ? kasan_check_read+0x11/0x20
[  385.881421]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.886694]  ? rcu_softirq_qs+0x20/0x20
[  385.890666]  ? trace_hardirqs_off_caller+0x310/0x310
[  385.895762]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.901291]  ? check_preemption_disabled+0x48/0x280
[  385.906306]  handle_mm_fault+0x54f/0xc70
[  385.910364]  ? __handle_mm_fault+0x5be0/0x5be0
[  385.914941]  ? find_vma+0x34/0x190
[  385.918563]  __do_page_fault+0x5e8/0xe60
[  385.922617]  ? trace_hardirqs_off+0xb8/0x310
[  385.927029]  do_page_fault+0xf2/0x7e0
[  385.931294]  ? vmalloc_sync_all+0x30/0x30
[  385.935434]  ? error_entry+0x70/0xd0
[  385.939149]  ? trace_hardirqs_off_caller+0xbb/0x310
[  385.944159]  ? trace_hardirqs_on_caller+0xc0/0x310
[  385.949076]  ? syscall_return_slowpath+0x5e0/0x5e0
[  385.954796]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.959639]  ? trace_hardirqs_on_caller+0x310/0x310
[  385.964664]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  385.970115]  ? prepare_exit_to_usermode+0x291/0x3b0
[  385.975148]  ? page_fault+0x8/0x30
[  385.978692]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.983527]  ? page_fault+0x8/0x30
[  385.987065]  page_fault+0x1e/0x30
[  385.990704] RIP: 0033:0x45ddf3
[  385.993908] Code: Bad RIP value.
[  385.997264] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  386.002623] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  386.009879] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  386.017142] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  386.024399] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  386.031661] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  386.039032] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  386.039037] warn_alloc_show_mem: 1 callbacks suppressed
[  386.039042] Mem-Info:
[  386.045782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  386.051154] active_anon:54141 inactive_anon:292 isolated_anon:0
[  386.051154]  active_file:12 inactive_file:13 isolated_file:0
[  386.051154]  unevictable:0 dirty:0 writeback:0 unstable:0
[  386.051154]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  386.051154]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  386.051154]  free:13705 free_pcp:178 free_cma:0
[  386.053683] Call Trace:
[  386.053715]  dump_stack+0x244/0x39d
[  386.053726]  ? dump_stack_print_info.cold.1+0x20/0x20
[  386.053743]  warn_alloc.cold.116+0xb7/0x1bd
[  386.053752]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  386.053764]  ? lock_downgrade+0x900/0x900
[  386.053776]  ? trace_hardirqs_off+0xb8/0x310
[  386.053788]  ? trace_hardirqs_off+0xb8/0x310
[  386.053801]  __alloc_pages_slowpath+0x26e8/0x2e10
[  386.053824]  ? warn_alloc+0x120/0x120
[  386.053834]  ? print_usage_bug+0xc0/0xc0
[  386.053842]  ? warn_alloc+0x120/0x120
[  386.053853]  ? warn_alloc+0x120/0x120
[  386.053862]  ? print_usage_bug+0xc0/0xc0
[  386.053873]  ? print_usage_bug+0xc0/0xc0
[  386.053882]  ? __lock_acquire+0x62f/0x4c20
[  386.053895]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.053905]  ? should_fail+0x22d/0xd01
[  386.053916]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  386.053925]  ? __lock_acquire+0x62f/0x4c20
[  386.053935]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  386.053943]  ? __lock_acquire+0x62f/0x4c20
[  386.053950]  ? should_fail+0x22d/0xd01
[  386.053958]  ? find_held_lock+0x36/0x1c0
[  386.053970]  ? mark_held_locks+0x130/0x130
[  386.053981]  ? mark_held_locks+0x130/0x130
[  386.053988]  ? zap_class+0x640/0x640
[  386.053999]  ? mark_held_locks+0xc7/0x130
[  386.054006]  ? do_raw_spin_unlock+0xa7/0x330
[  386.054014]  ? zap_class+0x640/0x640
[  386.054022]  ? print_usage_bug+0xc0/0xc0
[  386.054033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.054044]  ? check_preemption_disabled+0x48/0x280
[  386.054058]  ? __lock_is_held+0xb5/0x140
[  386.054069]  __alloc_pages_nodemask+0xa80/0xde0
[  386.054076]  ? zap_class+0x640/0x640
[  386.054087]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  386.054114]  ? find_held_lock+0x36/0x1c0
[  386.054128]  ? ____cache_alloc_node+0x1c7/0x1e0
[  386.054145]  ? lock_downgrade+0x900/0x900
[  386.054175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.063539] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  386.096482]  cache_grow_begin+0xa5/0x8c0
[  386.099036] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  386.102652]  ? do_raw_spin_unlock+0xa7/0x330
[  386.107904] lowmem_reserve[]: 0 2818 6321 6321
[  386.112221]  fallback_alloc+0x204/0x2e0
[  386.117028] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  386.121172]  ____cache_alloc_node+0x1c7/0x1e0
[  386.125544] lowmem_reserve[]: 0 0 3503 3503
[  386.129940]  kmem_cache_alloc_node+0xe3/0x730
[  386.134836] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  386.138627]  ? ipv6_get_ifaddr+0x42e/0x620
[  386.142654] lowmem_reserve[]: 0 0 0 0
[  386.146456]  __alloc_skb+0x119/0x770
[  386.150221] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  386.154553]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.158598] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  386.162825]  ? netdev_alloc_frag+0x1f0/0x1f0
[  386.168331] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  386.172207]  ? lock_downgrade+0x900/0x900
[  386.177284] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  386.181497]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.186572] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  386.190789]  ? refcount_sub_and_test_checked+0x203/0x310
[  386.194648] 366 total pagecache pages
[  386.198688]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  386.202899] 0 pages in swap cache
[  386.207108]  ? addrconf_rs_timer+0x690/0x690
[  386.210793] Swap cache stats: add 0, delete 0, find 0/0
[  386.214931]  ndisc_alloc_skb+0x144/0x340
[  386.219304] Free swap  = 0kB
[  386.223001]  ndisc_send_rs+0x331/0x6e0
[  386.227033] Total swap = 0kB
[  386.232556]  addrconf_rs_timer+0x314/0x690
[  386.237543] 1965979 pages RAM
[  386.241585]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.246222] 0 pages HighMem/MovableOnly
[  386.249929]  call_timer_fn+0x272/0x920
[  386.255636] 342854 pages reserved
[  386.255645] 0 pages cma reserved
[  386.259687]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.264377] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  386.268457]  ? process_timeout+0x40/0x40
[  386.274047] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  386.301634]  ? __run_timers+0x7da/0xc70
[  386.305670] syz-fuzzer cpuset=/ mems_allowed=0
[  386.331761]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.612387]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.616880]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.621140]  ? lockdep_hardirqs_on+0x296/0x5b0
[  386.625715]  ? trace_hardirqs_on+0xbd/0x310
[  386.630028]  ? kasan_check_read+0x11/0x20
[  386.634170]  ? __run_timers+0x7da/0xc70
[  386.638141]  ? trace_hardirqs_off_caller+0x310/0x310
[  386.643238]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.647488]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.651712]  __run_timers+0x7e5/0xc70
[  386.655869]  ? timer_fixup_init+0x70/0x70
[  386.660009]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.664495]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.668986]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  386.673577]  ? trace_hardirqs_on+0xbd/0x310
[  386.677893]  ? kasan_check_read+0x11/0x20
[  386.682035]  ? finish_task_switch+0x1f4/0x910
[  386.686524]  ? trace_hardirqs_off_caller+0x310/0x310
[  386.691619]  ? compat_start_thread+0x80/0x80
[  386.696036]  ? pvclock_read_flags+0x160/0x160
[  386.700522]  ? __switch_to_asm+0x34/0x70
[  386.704581]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.710121]  ? check_preemption_disabled+0x48/0x280
[  386.715151]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  386.720683]  ? rcu_pm_notify+0xc0/0xc0
[  386.724562]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.730102]  ? check_preemption_disabled+0x48/0x280
[  386.735133]  run_timer_softirq+0x52/0xb0
[  386.739189]  ? rcu_read_lock_sched_held+0x14f/0x180
[  386.744194]  __do_softirq+0x308/0xb7e
[  386.748002]  ? trace_hardirqs_on_caller+0xc0/0x310
[  386.752923]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  386.758355]  ? trace_hardirqs_on+0x310/0x310
[  386.762774]  ? schedule+0x108/0x460
[  386.766404]  ? trace_hardirqs_off+0xb8/0x310
[  386.770814]  ? smpboot_thread_fn+0x68b/0xa00
[  386.775217]  ? trace_hardirqs_on+0x310/0x310
[  386.779616]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.785166]  ? check_preemption_disabled+0x48/0x280
[  386.790179]  ? takeover_tasklets+0xa90/0xa90
[  386.794601]  run_ksoftirqd+0x5e/0x100
[  386.798395]  smpboot_thread_fn+0x68b/0xa00
[  386.802625]  ? sort_range+0x30/0x30
[  386.806250]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  386.811367]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.816906]  ? __kthread_parkme+0xfb/0x1a0
[  386.821134]  ? sort_range+0x30/0x30
[  386.824755]  kthread+0x35a/0x440
[  386.828123]  ? kthread_stop+0x900/0x900
[  386.832105]  ret_from_fork+0x3a/0x50
[  386.835832] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  386.835898] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  386.842751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  386.842756] Call Trace:
[  386.842762]  <IRQ>
[  386.842778]  dump_stack+0x244/0x39d
[  386.842796]  ? dump_stack_print_info.cold.1+0x20/0x20
[  386.849322] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  386.858985]  warn_alloc.cold.116+0xb7/0x1bd
[  386.861530] ksoftirqd/0 cpuset=/ mems_allowed=0
[  386.863667]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  386.896514]  ? lock_downgrade+0x900/0x900
[  386.900660]  ? trace_hardirqs_off+0xb8/0x310
[  386.905069]  ? trace_hardirqs_off+0xb8/0x310
[  386.909480]  __alloc_pages_slowpath+0x26e8/0x2e10
[  386.914340]  ? warn_alloc+0x120/0x120
[  386.918145]  ? print_usage_bug+0xc0/0xc0
[  386.922203]  ? warn_alloc+0x120/0x120
[  386.925997]  ? warn_alloc+0x120/0x120
[  386.929789]  ? print_usage_bug+0xc0/0xc0
[  386.933857]  ? kvm_clock_read+0x18/0x30
[  386.937821]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  386.942834]  ? print_usage_bug+0xc0/0xc0
[  386.947063]  ? __lock_acquire+0x62f/0x4c20
[  386.951300]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.957623]  ? should_fail+0x22d/0xd01
[  386.961504]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.966866]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  386.971957]  ? __lock_acquire+0x62f/0x4c20
[  386.976189]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  386.981283]  ? __lock_acquire+0x62f/0x4c20
[  386.985519]  ? should_fail+0x22d/0xd01
[  386.989397]  ? rcu_irq_exit+0x1a2/0x390
[  386.993367]  ? mark_held_locks+0x130/0x130
[  386.997598]  ? mark_held_locks+0x130/0x130
[  387.001946]  ? mark_held_locks+0xc7/0x130
[  387.006092]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  387.011104]  ? zap_class+0x640/0x640
[  387.014809]  ? print_usage_bug+0xc0/0xc0
[  387.018860]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.024386]  ? check_preemption_disabled+0x48/0x280
[  387.029408]  ? __lock_is_held+0xb5/0x140
[  387.033468]  __alloc_pages_nodemask+0xa80/0xde0
[  387.038128]  ? zap_class+0x640/0x640
[  387.041841]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  387.046858]  ? find_held_lock+0x36/0x1c0
[  387.050920]  ? ____cache_alloc_node+0x1c7/0x1e0
[  387.055893]  ? lock_downgrade+0x900/0x900
[  387.060038]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.065568]  cache_grow_begin+0xa5/0x8c0
[  387.069622]  ? do_raw_spin_unlock+0xa7/0x330
[  387.074123]  fallback_alloc+0x204/0x2e0
[  387.078107]  ____cache_alloc_node+0x1c7/0x1e0
[  387.082606]  kmem_cache_alloc_node+0xe3/0x730
[  387.087098]  ? ipv6_get_ifaddr+0x42e/0x620
[  387.091340]  __alloc_skb+0x119/0x770
[  387.095044]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.100409]  ? netdev_alloc_frag+0x1f0/0x1f0
[  387.104808]  ? lock_downgrade+0x900/0x900
[  387.108951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.114478]  ? refcount_sub_and_test_checked+0x203/0x310
[  387.119919]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  387.125362]  ? addrconf_rs_timer+0x690/0x690
[  387.129775]  ndisc_alloc_skb+0x144/0x340
[  387.133846]  ndisc_send_rs+0x331/0x6e0
[  387.137729]  addrconf_rs_timer+0x314/0x690
[  387.141964]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.146200]  call_timer_fn+0x272/0x920
[  387.150093]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.154842]  ? process_timeout+0x40/0x40
[  387.158898]  ? mark_held_locks+0xc7/0x130
[  387.163042]  ? _raw_spin_unlock_irq+0x27/0x80
[  387.167534]  ? _raw_spin_unlock_irq+0x27/0x80
[  387.172034]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.176264]  ? lockdep_hardirqs_on+0x296/0x5b0
[  387.180859]  ? trace_hardirqs_on+0xbd/0x310
[  387.185181]  ? kasan_check_read+0x11/0x20
[  387.189319]  ? __run_timers+0x7da/0xc70
[  387.193287]  ? trace_hardirqs_off_caller+0x310/0x310
[  387.198384]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.202618]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.206840]  __run_timers+0x7e5/0xc70
[  387.210651]  ? timer_fixup_init+0x70/0x70
[  387.214798]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  387.219896]  ? zap_class+0x640/0x640
[  387.223613]  ? print_usage_bug+0xc0/0xc0
[  387.227666]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  387.232855]  ? find_held_lock+0x36/0x1c0
[  387.236913]  ? zap_class+0x640/0x640
[  387.240626]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.246164]  ? check_preemption_disabled+0x48/0x280
[  387.251183]  ? __lock_is_held+0xb5/0x140
[  387.255715]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.261244]  ? check_preemption_disabled+0x48/0x280
[  387.266258]  run_timer_softirq+0x52/0xb0
[  387.270313]  ? rcu_read_lock_sched_held+0x14f/0x180
[  387.275359]  __do_softirq+0x308/0xb7e
[  387.279166]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  387.283652]  ? lock_downgrade+0x900/0x900
[  387.287799]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  387.292899]  ? pvclock_read_flags+0x160/0x160
[  387.297387]  ? lapic_next_event+0x5a/0x90
[  387.301531]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.307066]  ? kvm_clock_read+0x18/0x30
[  387.311047]  ? kvm_sched_clock_read+0x9/0x20
[  387.315460]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.320989]  ? check_preemption_disabled+0x48/0x280
[  387.326003]  irq_exit+0x17f/0x1c0
[  387.329450]  smp_apic_timer_interrupt+0x1cb/0x760
[  387.334289]  ? smp_reschedule_interrupt+0x109/0x650
[  387.339299]  ? smp_call_function_single_interrupt+0x650/0x650
[  387.345173]  ? interrupt_entry+0xb5/0xc0
[  387.349231]  ? trace_hardirqs_off_caller+0xbb/0x310
[  387.354790]  ? trace_hardirqs_off_caller+0xbb/0x310
[  387.359801]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.364638]  ? trace_hardirqs_on_caller+0x310/0x310
[  387.369646]  ? trace_hardirqs_on_caller+0x310/0x310
[  387.374658]  ? task_prio+0x50/0x50
[  387.378191]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.383723]  ? check_preemption_disabled+0x48/0x280
[  387.388734]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.393581]  apic_timer_interrupt+0xf/0x20
[  387.397801]  </IRQ>
[  387.400031] RIP: 0010:dump_stack+0x358/0x39d
[  387.404438] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  387.423328] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  387.431062] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  387.438323] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  387.445584] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  387.452843] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  387.460870] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  387.468149]  ? dump_stack+0x34f/0x39d
[  387.471951]  ? dump_stack_print_info.cold.1+0x20/0x20
[  387.477134]  ? mark_held_locks+0x130/0x130
[  387.481361]  ? mark_held_locks+0x130/0x130
[  387.485595]  dump_header+0x27b/0xf72
[  387.489312]  ? pagefault_out_of_memory+0x197/0x197
[  387.494239]  ? __lock_acquire+0x62f/0x4c20
[  387.498478]  ? percpu_ref_get_many+0x240/0x240
[  387.503058]  ? print_usage_bug+0xc0/0xc0
[  387.507117]  ? zap_class+0x640/0x640
[  387.510822]  ? print_usage_bug+0xc0/0xc0
[  387.514878]  ? print_usage_bug+0xc0/0xc0
[  387.518931]  ? zap_class+0x640/0x640
[  387.522639]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.528173]  ? find_held_lock+0x36/0x1c0
[  387.532243]  ? mark_held_locks+0xc7/0x130
[  387.536384]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  387.541476]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  387.546658]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  387.551249]  ? trace_hardirqs_on+0xbd/0x310
[  387.556341]  ? kasan_check_read+0x11/0x20
[  387.560476]  ? ___ratelimit+0x3b4/0x672
[  387.564442]  ? trace_hardirqs_off_caller+0x310/0x310
[  387.569538]  ? trace_hardirqs_on+0x310/0x310
[  387.573951]  ? lock_downgrade+0x900/0x900
[  387.578109]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  387.583204]  ? ___ratelimit+0x3b9/0x672
[  387.587174]  ? idr_get_free+0xf70/0xf70
[  387.591139]  ? find_held_lock+0x36/0x1c0
[  387.595204]  oom_kill_process.cold.27+0x10/0x903
[  387.599952]  ? zap_class+0x640/0x640
[  387.603659]  ? check_preemption_disabled+0x48/0x280
[  387.608668]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  387.613592]  ? kasan_check_read+0x11/0x20
[  387.617731]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.623002]  ? oom_evaluate_task+0x540/0x540
[  387.627415]  ? find_held_lock+0x36/0x1c0
[  387.631476]  ? out_of_memory+0x974/0x1430
[  387.635618]  ? lock_downgrade+0x900/0x900
[  387.639757]  ? check_preemption_disabled+0x48/0x280
[  387.644763]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  387.649687]  ? kasan_check_read+0x11/0x20
[  387.654289]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.659573]  ? rcu_softirq_qs+0x20/0x20
[  387.663541]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.669159]  ? oom_evaluate_task+0x302/0x540
[  387.673569]  out_of_memory+0xa84/0x1430
[  387.677552]  ? oom_killer_disable+0x3a0/0x3a0
[  387.682063]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  387.686986]  ? __ww_mutex_check_waiters+0x160/0x160
[  387.692026]  __alloc_pages_slowpath+0x2354/0x2e10
[  387.696890]  ? warn_alloc+0x120/0x120
[  387.700694]  ? mark_held_locks+0x130/0x130
[  387.705015]  ? find_get_entry+0xaae/0x1120
[  387.709268]  ? filemap_map_pages+0x1a20/0x1a20
[  387.713845]  ? zap_class+0x640/0x640
[  387.717564]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.723095]  ? check_preemption_disabled+0x48/0x280
[  387.728106]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.733657]  ? should_fail+0x22d/0xd01
[  387.737548]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  387.742648]  ? zap_class+0x640/0x640
[  387.746378]  ? __lock_is_held+0xb5/0x140
[  387.750439]  ? mark_held_locks+0x130/0x130
[  387.755643]  ? lock_release+0xa00/0xa00
[  387.759616]  ? perf_trace_sched_process_exec+0x860/0x860
[  387.765335]  ? xa_load+0x2ba/0x460
[  387.768868]  ? lock_downgrade+0x900/0x900
[  387.773018]  ? __might_sleep+0x95/0x190
[  387.777004]  __alloc_pages_nodemask+0xa80/0xde0
[  387.781681]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  387.786689]  ? __page_cache_alloc+0x191/0x5c0
[  387.791173]  ? xa_load+0x2e1/0x460
[  387.794709]  ? xa_clear_mark+0x40/0x40
[  387.798592]  ? zap_class+0x640/0x640
[  387.802307]  ? zap_class+0x640/0x640
[  387.806014]  ? zap_class+0x640/0x640
[  387.809732]  ? __do_page_cache_readahead+0x663/0x810
[  387.814831]  ? find_held_lock+0x36/0x1c0
[  387.818895]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  387.824429]  alloc_pages_current+0x173/0x350
[  387.828844]  __page_cache_alloc+0x38c/0x5c0
[  387.833161]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  387.838082]  ? kasan_check_read+0x11/0x20
[  387.842322]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.847591]  ? generic_perform_write+0x6a0/0x6a0
[  387.852341]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.858848]  ? check_preemption_disabled+0x48/0x280
[  387.863864]  filemap_fault+0x1595/0x25f0
[  387.867936]  ? __lock_page_or_retry+0xa00/0xa00
[  387.872598]  ? mark_held_locks+0x130/0x130
[  387.876836]  ? filemap_map_pages+0xd6b/0x1a20
[  387.881325]  ? lock_downgrade+0x900/0x900
[  387.885465]  ? check_preemption_disabled+0x48/0x280
[  387.890479]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  387.895404]  ? kasan_check_read+0x11/0x20
[  387.899549]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.904825]  ? rcu_softirq_qs+0x20/0x20
[  387.908803]  ? filemap_map_pages+0xd92/0x1a20
[  387.913306]  ? find_get_entries_tag+0x1400/0x1400
[  387.918243]  ? debug_object_destroy+0x2b0/0x2b0
[  387.922906]  ? lock_pi_update_atomic+0x150/0x150
[  387.927655]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.933697]  ? lock_acquire+0x1ed/0x520
[  387.937665]  ? ext4_filemap_fault+0x7a/0xad
[  387.941983]  ? lock_release+0xa00/0xa00
[  387.945949]  ? perf_trace_sched_process_exec+0x860/0x860
[  387.951388]  ? print_usage_bug+0xc0/0xc0
[  387.956233]  ? print_usage_bug+0xc0/0xc0
[  387.960294]  ? down_read+0x8d/0x120
[  387.963912]  ? ext4_filemap_fault+0x7a/0xad
[  387.968229]  ? __down_interruptible+0x700/0x700
[  387.972910]  ext4_filemap_fault+0x82/0xad
[  387.977054]  __do_fault+0x100/0x6b0
[  387.980683]  ? pmd_devmap_trans_unstable+0x220/0x220
[  387.985774]  ? mark_held_locks+0x130/0x130
[  387.990025]  ? mark_held_locks+0x130/0x130
[  387.994264]  ? do_raw_spin_trylock+0x270/0x270
[  387.998845]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.004378]  __handle_mm_fault+0x3ea0/0x5be0
[  388.008775]  ? perf_trace_lock+0x7a0/0x7a0
[  388.013014]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  388.017855]  ? __switch_to_asm+0x34/0x70
[  388.021929]  ? __switch_to_asm+0x34/0x70
[  388.026004]  ? zap_class+0x640/0x640
[  388.029719]  ? zap_class+0x640/0x640
[  388.033424]  ? __x64_sys_futex+0x53e/0x6a0
[  388.037659]  ? find_held_lock+0x36/0x1c0
[  388.041725]  ? handle_mm_fault+0x42a/0xc70
[  388.045954]  ? lock_downgrade+0x900/0x900
[  388.050098]  ? check_preemption_disabled+0x48/0x280
[  388.055396]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  388.060319]  ? kasan_check_read+0x11/0x20
[  388.064459]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.069729]  ? rcu_softirq_qs+0x20/0x20
[  388.073697]  ? trace_hardirqs_off_caller+0x310/0x310
[  388.078790]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.084318]  ? check_preemption_disabled+0x48/0x280
[  388.089336]  handle_mm_fault+0x54f/0xc70
[  388.093393]  ? __handle_mm_fault+0x5be0/0x5be0
[  388.097969]  ? find_vma+0x34/0x190
[  388.101505]  __do_page_fault+0x5e8/0xe60
[  388.105559]  ? trace_hardirqs_off+0xb8/0x310
[  388.109965]  do_page_fault+0xf2/0x7e0
[  388.113755]  ? vmalloc_sync_all+0x30/0x30
[  388.117893]  ? error_entry+0x70/0xd0
[  388.121597]  ? trace_hardirqs_off_caller+0xbb/0x310
[  388.126604]  ? trace_hardirqs_on_caller+0xc0/0x310
[  388.131532]  ? syscall_return_slowpath+0x5e0/0x5e0
[  388.136456]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.141289]  ? trace_hardirqs_on_caller+0x310/0x310
[  388.146298]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  388.151830]  ? prepare_exit_to_usermode+0x291/0x3b0
[  388.157306]  ? page_fault+0x8/0x30
[  388.160841]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.165676]  ? page_fault+0x8/0x30
[  388.169212]  page_fault+0x1e/0x30
[  388.172655] RIP: 0033:0x45ddf3
[  388.175853] Code: Bad RIP value.
[  388.179205] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  388.184572] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  388.191828] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  388.199083] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  388.206339] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  388.213597] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  388.220882] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  388.220886] warn_alloc_show_mem: 1 callbacks suppressed
[  388.220892] Mem-Info:
[  388.227632] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  388.232999] active_anon:54141 inactive_anon:292 isolated_anon:0
[  388.232999]  active_file:12 inactive_file:13 isolated_file:0
[  388.232999]  unevictable:0 dirty:0 writeback:0 unstable:0
[  388.232999]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  388.232999]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  388.232999]  free:13705 free_pcp:178 free_cma:0
[  388.235353] Call Trace:
[  388.235371]  dump_stack+0x244/0x39d
[  388.244730] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  388.277861]  ? dump_stack_print_info.cold.1+0x20/0x20
[  388.280421] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  388.284041]  warn_alloc.cold.116+0xb7/0x1bd
[  388.311671] lowmem_reserve[]: 0 2818 6321 6321
[  388.316847]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  388.342925] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  388.347257]  ? lock_downgrade+0x900/0x900
[  388.351816] lowmem_reserve[]: 0 0 3503 3503
[  388.356954]  ? trace_hardirqs_off+0xb8/0x310
[  388.384417] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  388.388551]  ? trace_hardirqs_off+0xb8/0x310
[  388.392834] lowmem_reserve[]: 0 0 0 0
[  388.397232]  __alloc_pages_slowpath+0x26e8/0x2e10
[  388.426172] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  388.430594]  ? warn_alloc+0x120/0x120
[  388.434341] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  388.439173]  ? print_usage_bug+0xc0/0xc0
[  388.452664] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  388.456758]  ? warn_alloc+0x120/0x120
[  388.471995] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  388.476042]  ? warn_alloc+0x120/0x120
[  388.490225] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  388.490232] 366 total pagecache pages
[  388.494023]  ? print_usage_bug+0xc0/0xc0
[  388.502851] 0 pages in swap cache
[  388.506633]  ? print_usage_bug+0xc0/0xc0
[  388.515178] Swap cache stats: add 0, delete 0, find 0/0
[  388.518959]  ? __lock_acquire+0x62f/0x4c20
[  388.522994] Free swap  = 0kB
[  388.523002] Total swap = 0kB
[  388.526447]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.530476] 1965979 pages RAM
[  388.535827]  ? should_fail+0x22d/0xd01
[  388.540034] 0 pages HighMem/MovableOnly
[  388.543038]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  388.546028] 342854 pages reserved
[  388.551633]  ? __lock_acquire+0x62f/0x4c20
[  388.555373] 0 pages cma reserved
[  388.555433] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  388.559258]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  388.563278] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  388.568291]  ? __lock_acquire+0x62f/0x4c20
[  388.571711] syz-fuzzer cpuset=/ mems_allowed=0
[  388.575925]  ? should_fail+0x22d/0xd01
[  388.575947]  ? mark_held_locks+0x130/0x130
[  388.617884]  ? mark_held_locks+0x130/0x130
[  388.622111]  ? zap_class+0x640/0x640
[  388.625817]  ? zap_class+0x640/0x640
[  388.629524]  ? zap_class+0x640/0x640
[  388.633228]  ? print_usage_bug+0xc0/0xc0
[  388.637281]  ? mark_held_locks+0x130/0x130
[  388.641525]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.647078]  ? check_preemption_disabled+0x48/0x280
[  388.652097]  ? __lock_is_held+0xb5/0x140
[  388.656528]  __alloc_pages_nodemask+0xa80/0xde0
[  388.661190]  ? zap_class+0x640/0x640
[  388.664900]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  388.670011]  ? find_held_lock+0x36/0x1c0
[  388.674073]  ? ____cache_alloc_node+0x1c7/0x1e0
[  388.678735]  ? lock_downgrade+0x900/0x900
[  388.682884]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.688414]  cache_grow_begin+0xa5/0x8c0
[  388.692466]  ? do_raw_spin_unlock+0xa7/0x330
[  388.696868]  fallback_alloc+0x204/0x2e0
[  388.700838]  ____cache_alloc_node+0x1c7/0x1e0
[  388.705327]  kmem_cache_alloc_node+0xe3/0x730
[  388.709810]  ? ipv6_get_ifaddr+0x42e/0x620
[  388.714042]  __alloc_skb+0x119/0x770
[  388.717749]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.723054]  ? netdev_alloc_frag+0x1f0/0x1f0
[  388.727455]  ? lock_downgrade+0x900/0x900
[  388.731606]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.737137]  ? refcount_sub_and_test_checked+0x203/0x310
[  388.742585]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  388.748026]  ? addrconf_rs_timer+0x690/0x690
[  388.752435]  ndisc_alloc_skb+0x144/0x340
[  388.756663]  ndisc_send_rs+0x331/0x6e0
[  388.760547]  addrconf_rs_timer+0x314/0x690
[  388.764775]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.769016]  call_timer_fn+0x272/0x920
[  388.772897]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.777126]  ? process_timeout+0x40/0x40
[  388.781188]  ? __run_timers+0x7da/0xc70
[  388.785157]  ? _raw_spin_unlock_irq+0x27/0x80
[  388.789643]  ? _raw_spin_unlock_irq+0x27/0x80
[  388.794126]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.798355]  ? lockdep_hardirqs_on+0x296/0x5b0
[  388.802934]  ? trace_hardirqs_on+0xbd/0x310
[  388.807254]  ? kasan_check_read+0x11/0x20
[  388.811397]  ? __run_timers+0x7da/0xc70
[  388.815369]  ? trace_hardirqs_off_caller+0x310/0x310
[  388.820473]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.824697]  __run_timers+0x7e5/0xc70
[  388.828611]  ? timer_fixup_init+0x70/0x70
[  388.832752]  ? _raw_spin_unlock_irq+0x27/0x80
[  388.837239]  ? _raw_spin_unlock_irq+0x27/0x80
[  388.841728]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  388.846310]  ? trace_hardirqs_on+0xbd/0x310
[  388.850626]  ? kasan_check_read+0x11/0x20
[  388.855081]  ? finish_task_switch+0x1f4/0x910
[  388.859573]  ? trace_hardirqs_off_caller+0x310/0x310
[  388.864665]  ? compat_start_thread+0x80/0x80
[  388.869079]  ? pvclock_read_flags+0x160/0x160
[  388.873569]  ? __switch_to_asm+0x34/0x70
[  388.877624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.883160]  ? check_preemption_disabled+0x48/0x280
[  388.888177]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  388.893705]  ? rcu_pm_notify+0xc0/0xc0
[  388.897583]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.903111]  ? check_preemption_disabled+0x48/0x280
[  388.908123]  run_timer_softirq+0x52/0xb0
[  388.912178]  ? rcu_read_lock_sched_held+0x14f/0x180
[  388.917184]  __do_softirq+0x308/0xb7e
[  388.920985]  ? trace_hardirqs_on_caller+0xc0/0x310
[  388.925925]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  388.931029]  ? trace_hardirqs_on+0x310/0x310
[  388.935441]  ? schedule+0x108/0x460
[  388.939206]  ? trace_hardirqs_off+0xb8/0x310
[  388.943627]  ? smpboot_thread_fn+0x68b/0xa00
[  388.948030]  ? trace_hardirqs_on+0x310/0x310
[  388.952519]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.958399]  ? check_preemption_disabled+0x48/0x280
[  388.963415]  ? takeover_tasklets+0xa90/0xa90
[  388.967820]  run_ksoftirqd+0x5e/0x100
[  388.971618]  smpboot_thread_fn+0x68b/0xa00
[  388.975850]  ? sort_range+0x30/0x30
[  388.979479]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  388.984583]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.990113]  ? __kthread_parkme+0xfb/0x1a0
[  388.994345]  ? sort_range+0x30/0x30
[  388.997976]  kthread+0x35a/0x440
[  389.001333]  ? kthread_stop+0x900/0x900
[  389.005303]  ret_from_fork+0x3a/0x50
[  389.009021] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  389.009082] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  389.015936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  389.015948] Call Trace:
[  389.015954]  <IRQ>
[  389.015970]  dump_stack+0x244/0x39d
[  389.015990]  ? dump_stack_print_info.cold.1+0x20/0x20
[  389.022547] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  389.031914]  warn_alloc.cold.116+0xb7/0x1bd
[  389.034467] ksoftirqd/0 cpuset=/ mems_allowed=0
[  389.036619]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  389.070298]  ? lock_downgrade+0x900/0x900
[  389.074452]  ? trace_hardirqs_off+0xb8/0x310
[  389.078863]  ? trace_hardirqs_off+0xb8/0x310
[  389.083277]  __alloc_pages_slowpath+0x26e8/0x2e10
[  389.088134]  ? warn_alloc+0x120/0x120
[  389.091929]  ? print_usage_bug+0xc0/0xc0
[  389.095993]  ? warn_alloc+0x120/0x120
[  389.099806]  ? warn_alloc+0x120/0x120
[  389.103599]  ? print_usage_bug+0xc0/0xc0
[  389.107654]  ? kvm_clock_read+0x18/0x30
[  389.111620]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  389.116632]  ? print_usage_bug+0xc0/0xc0
[  389.120685]  ? __lock_acquire+0x62f/0x4c20
[  389.124925]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.130469]  ? should_fail+0x22d/0xd01
[  389.134351]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.139620]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  389.144734]  ? __lock_acquire+0x62f/0x4c20
[  389.148981]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  389.154387]  ? __lock_acquire+0x62f/0x4c20
[  389.158615]  ? should_fail+0x22d/0xd01
[  389.162492]  ? rcu_irq_exit+0x1a2/0x390
[  389.166470]  ? mark_held_locks+0x130/0x130
[  389.170724]  ? mark_held_locks+0x130/0x130
[  389.175383]  ? mark_held_locks+0xc7/0x130
[  389.179522]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  389.184529]  ? zap_class+0x640/0x640
[  389.188234]  ? print_usage_bug+0xc0/0xc0
[  389.192295]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.197830]  ? check_preemption_disabled+0x48/0x280
[  389.202846]  ? __lock_is_held+0xb5/0x140
[  389.206905]  __alloc_pages_nodemask+0xa80/0xde0
[  389.211571]  ? zap_class+0x640/0x640
[  389.215281]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  389.220303]  ? find_held_lock+0x36/0x1c0
[  389.224368]  ? ____cache_alloc_node+0x1c7/0x1e0
[  389.229035]  ? lock_downgrade+0x900/0x900
[  389.233186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.238719]  cache_grow_begin+0xa5/0x8c0
[  389.242774]  ? do_raw_spin_unlock+0xa7/0x330
[  389.247182]  fallback_alloc+0x204/0x2e0
[  389.251151]  ____cache_alloc_node+0x1c7/0x1e0
[  389.256468]  kmem_cache_alloc_node+0xe3/0x730
[  389.260964]  ? ipv6_get_ifaddr+0x42e/0x620
[  389.265199]  __alloc_skb+0x119/0x770
[  389.268901]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.274181]  ? netdev_alloc_frag+0x1f0/0x1f0
[  389.278601]  ? lock_downgrade+0x900/0x900
[  389.282757]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.288287]  ? refcount_sub_and_test_checked+0x203/0x310
[  389.293733]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  389.299173]  ? addrconf_rs_timer+0x690/0x690
[  389.303582]  ndisc_alloc_skb+0x144/0x340
[  389.307641]  ndisc_send_rs+0x331/0x6e0
[  389.311530]  addrconf_rs_timer+0x314/0x690
[  389.315767]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.320005]  call_timer_fn+0x272/0x920
[  389.323885]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.328113]  ? process_timeout+0x40/0x40
[  389.332179]  ? mark_held_locks+0xc7/0x130
[  389.336327]  ? _raw_spin_unlock_irq+0x27/0x80
[  389.340814]  ? _raw_spin_unlock_irq+0x27/0x80
[  389.345297]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.349525]  ? lockdep_hardirqs_on+0x296/0x5b0
[  389.354106]  ? trace_hardirqs_on+0xbd/0x310
[  389.359215]  ? kasan_check_read+0x11/0x20
[  389.363358]  ? __run_timers+0x7da/0xc70
[  389.367328]  ? trace_hardirqs_off_caller+0x310/0x310
[  389.372428]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.376666]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.380892]  __run_timers+0x7e5/0xc70
[  389.384714]  ? timer_fixup_init+0x70/0x70
[  389.388857]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  389.393865]  ? zap_class+0x640/0x640
[  389.397579]  ? print_usage_bug+0xc0/0xc0
[  389.401653]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  389.406843]  ? find_held_lock+0x36/0x1c0
[  389.410901]  ? zap_class+0x640/0x640
[  389.414622]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.420167]  ? check_preemption_disabled+0x48/0x280
[  389.425183]  ? __lock_is_held+0xb5/0x140
[  389.429237]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.434768]  ? check_preemption_disabled+0x48/0x280
[  389.439783]  run_timer_softirq+0x52/0xb0
[  389.443836]  ? rcu_read_lock_sched_held+0x14f/0x180
[  389.448844]  __do_softirq+0x308/0xb7e
[  389.452639]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  389.457456]  ? lock_downgrade+0x900/0x900
[  389.461597]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  389.466700]  ? pvclock_read_flags+0x160/0x160
[  389.471189]  ? lapic_next_event+0x5a/0x90
[  389.475331]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.480858]  ? kvm_clock_read+0x18/0x30
[  389.484822]  ? kvm_sched_clock_read+0x9/0x20
[  389.489222]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.494754]  ? check_preemption_disabled+0x48/0x280
[  389.499766]  irq_exit+0x17f/0x1c0
[  389.503212]  smp_apic_timer_interrupt+0x1cb/0x760
[  389.508044]  ? smp_reschedule_interrupt+0x109/0x650
[  389.513055]  ? smp_call_function_single_interrupt+0x650/0x650
[  389.518932]  ? interrupt_entry+0xb5/0xc0
[  389.522986]  ? trace_hardirqs_off_caller+0xbb/0x310
[  389.527994]  ? trace_hardirqs_off_caller+0xbb/0x310
[  389.533004]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  389.537926]  ? trace_hardirqs_on_caller+0x310/0x310
[  389.542940]  ? trace_hardirqs_on_caller+0x310/0x310
[  389.547949]  ? task_prio+0x50/0x50
[  389.551481]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.557338]  ? check_preemption_disabled+0x48/0x280
[  389.562375]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  389.567219]  apic_timer_interrupt+0xf/0x20
[  389.571438]  </IRQ>
[  389.573669] RIP: 0010:dump_stack+0x358/0x39d
[  389.578070] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  389.596964] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  389.604664] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  389.611933] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  389.619201] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  389.626461] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  389.633720] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  389.640997]  ? dump_stack+0x34f/0x39d
[  389.644812]  ? dump_stack_print_info.cold.1+0x20/0x20
[  389.649995]  ? mark_held_locks+0x130/0x130
[  389.654230]  ? mark_held_locks+0x130/0x130
[  389.658946]  dump_header+0x27b/0xf72
[  389.662660]  ? pagefault_out_of_memory+0x197/0x197
[  389.667585]  ? __lock_acquire+0x62f/0x4c20
[  389.671809]  ? percpu_ref_get_many+0x240/0x240
[  389.676384]  ? print_usage_bug+0xc0/0xc0
[  389.680450]  ? zap_class+0x640/0x640
[  389.684159]  ? print_usage_bug+0xc0/0xc0
[  389.688225]  ? print_usage_bug+0xc0/0xc0
[  389.692276]  ? zap_class+0x640/0x640
[  389.695983]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.701511]  ? find_held_lock+0x36/0x1c0
[  389.705572]  ? mark_held_locks+0xc7/0x130
[  389.709722]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  389.714816]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  389.719917]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  389.724493]  ? trace_hardirqs_on+0xbd/0x310
[  389.728805]  ? kasan_check_read+0x11/0x20
[  389.732939]  ? ___ratelimit+0x3b4/0x672
[  389.736913]  ? trace_hardirqs_off_caller+0x310/0x310
[  389.742010]  ? trace_hardirqs_on+0x310/0x310
[  389.746410]  ? lock_downgrade+0x900/0x900
[  389.750570]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  389.756158]  ? ___ratelimit+0x3b9/0x672
[  389.760139]  ? idr_get_free+0xf70/0xf70
[  389.764356]  ? find_held_lock+0x36/0x1c0
[  389.768425]  oom_kill_process.cold.27+0x10/0x903
[  389.773184]  ? zap_class+0x640/0x640
[  389.776888]  ? check_preemption_disabled+0x48/0x280
[  389.781925]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  389.786858]  ? kasan_check_read+0x11/0x20
[  389.791006]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.796276]  ? oom_evaluate_task+0x540/0x540
[  389.800680]  ? find_held_lock+0x36/0x1c0
[  389.804742]  ? out_of_memory+0x974/0x1430
[  389.808882]  ? lock_downgrade+0x900/0x900
[  389.813020]  ? check_preemption_disabled+0x48/0x280
[  389.818025]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  389.822944]  ? kasan_check_read+0x11/0x20
[  389.827098]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.832366]  ? rcu_softirq_qs+0x20/0x20
[  389.836335]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.841861]  ? oom_evaluate_task+0x302/0x540
[  389.846286]  out_of_memory+0xa84/0x1430
[  389.850259]  ? oom_killer_disable+0x3a0/0x3a0
[  389.854747]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  389.860157]  ? __ww_mutex_check_waiters+0x160/0x160
[  389.865267]  __alloc_pages_slowpath+0x2354/0x2e10
[  389.870128]  ? warn_alloc+0x120/0x120
[  389.873921]  ? mark_held_locks+0x130/0x130
[  389.878154]  ? find_get_entry+0xaae/0x1120
[  389.882388]  ? filemap_map_pages+0x1a20/0x1a20
[  389.886975]  ? zap_class+0x640/0x640
[  389.890682]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.896210]  ? check_preemption_disabled+0x48/0x280
[  389.901219]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.906748]  ? should_fail+0x22d/0xd01
[  389.910628]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  389.915720]  ? zap_class+0x640/0x640
[  389.919475]  ? __lock_is_held+0xb5/0x140
[  389.923534]  ? mark_held_locks+0x130/0x130
[  389.927760]  ? lock_release+0xa00/0xa00
[  389.932249]  ? perf_trace_sched_process_exec+0x860/0x860
[  389.937695]  ? xa_load+0x2ba/0x460
[  389.941232]  ? lock_downgrade+0x900/0x900
[  389.945377]  ? __might_sleep+0x95/0x190
[  389.949351]  __alloc_pages_nodemask+0xa80/0xde0
[  389.954011]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  389.960006]  ? __page_cache_alloc+0x191/0x5c0
[  389.964500]  ? xa_load+0x2e1/0x460
[  389.968047]  ? xa_clear_mark+0x40/0x40
[  389.972016]  ? zap_class+0x640/0x640
[  389.975726]  ? zap_class+0x640/0x640
[  389.979433]  ? zap_class+0x640/0x640
[  389.983134]  ? __do_page_cache_readahead+0x663/0x810
[  389.988318]  ? find_held_lock+0x36/0x1c0
[  389.992377]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  389.997917]  alloc_pages_current+0x173/0x350
[  390.002325]  __page_cache_alloc+0x38c/0x5c0
[  390.006634]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  390.011554]  ? kasan_check_read+0x11/0x20
[  390.015693]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.020963]  ? generic_perform_write+0x6a0/0x6a0
[  390.025713]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.031244]  ? check_preemption_disabled+0x48/0x280
[  390.036256]  filemap_fault+0x1595/0x25f0
[  390.040323]  ? __lock_page_or_retry+0xa00/0xa00
[  390.044984]  ? mark_held_locks+0x130/0x130
[  390.049214]  ? filemap_map_pages+0xd6b/0x1a20
[  390.053698]  ? lock_downgrade+0x900/0x900
[  390.058790]  ? check_preemption_disabled+0x48/0x280
[  390.063809]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  390.068755]  ? kasan_check_read+0x11/0x20
[  390.072906]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.078223]  ? rcu_softirq_qs+0x20/0x20
[  390.082207]  ? filemap_map_pages+0xd92/0x1a20
[  390.086707]  ? find_get_entries_tag+0x1400/0x1400
[  390.091543]  ? debug_object_destroy+0x2b0/0x2b0
[  390.096201]  ? lock_pi_update_atomic+0x150/0x150
[  390.100945]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.106523]  ? lock_acquire+0x1ed/0x520
[  390.110485]  ? ext4_filemap_fault+0x7a/0xad
[  390.114801]  ? lock_release+0xa00/0xa00
[  390.118763]  ? perf_trace_sched_process_exec+0x860/0x860
[  390.124204]  ? print_usage_bug+0xc0/0xc0
[  390.128258]  ? print_usage_bug+0xc0/0xc0
[  390.132319]  ? down_read+0x8d/0x120
[  390.135933]  ? ext4_filemap_fault+0x7a/0xad
[  390.140245]  ? __down_interruptible+0x700/0x700
[  390.144924]  ext4_filemap_fault+0x82/0xad
[  390.149065]  __do_fault+0x100/0x6b0
[  390.152684]  ? pmd_devmap_trans_unstable+0x220/0x220
[  390.158610]  ? mark_held_locks+0x130/0x130
[  390.162834]  ? mark_held_locks+0x130/0x130
[  390.167060]  ? do_raw_spin_trylock+0x270/0x270
[  390.171642]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.177176]  __handle_mm_fault+0x3ea0/0x5be0
[  390.181577]  ? perf_trace_lock+0x7a0/0x7a0
[  390.185815]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  390.190657]  ? __switch_to_asm+0x34/0x70
[  390.194709]  ? __switch_to_asm+0x34/0x70
[  390.198771]  ? zap_class+0x640/0x640
[  390.202478]  ? zap_class+0x640/0x640
[  390.206178]  ? __x64_sys_futex+0x53e/0x6a0
[  390.210408]  ? find_held_lock+0x36/0x1c0
[  390.214466]  ? handle_mm_fault+0x42a/0xc70
[  390.218700]  ? lock_downgrade+0x900/0x900
[  390.222847]  ? check_preemption_disabled+0x48/0x280
[  390.227873]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  390.232798]  ? kasan_check_read+0x11/0x20
[  390.236940]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.242211]  ? rcu_softirq_qs+0x20/0x20
[  390.246183]  ? trace_hardirqs_off_caller+0x310/0x310
[  390.251283]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.257563]  ? check_preemption_disabled+0x48/0x280
[  390.262580]  handle_mm_fault+0x54f/0xc70
[  390.266646]  ? __handle_mm_fault+0x5be0/0x5be0
[  390.271221]  ? find_vma+0x34/0x190
[  390.274775]  __do_page_fault+0x5e8/0xe60
[  390.278824]  ? trace_hardirqs_off+0xb8/0x310
[  390.283248]  do_page_fault+0xf2/0x7e0
[  390.287040]  ? vmalloc_sync_all+0x30/0x30
[  390.291181]  ? error_entry+0x70/0xd0
[  390.294889]  ? trace_hardirqs_off_caller+0xbb/0x310
[  390.299900]  ? trace_hardirqs_on_caller+0xc0/0x310
[  390.304821]  ? syscall_return_slowpath+0x5e0/0x5e0
[  390.309742]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  390.314578]  ? trace_hardirqs_on_caller+0x310/0x310
[  390.319589]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  390.325029]  ? prepare_exit_to_usermode+0x291/0x3b0
[  390.330037]  ? page_fault+0x8/0x30
[  390.333577]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  390.338411]  ? page_fault+0x8/0x30
[  390.341941]  page_fault+0x1e/0x30
[  390.345388] RIP: 0033:0x45ddf3
[  390.348587] Code: Bad RIP value.
[  390.351942] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  390.358081] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  390.365431] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  390.372688] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  390.379946] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  390.387209] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  390.394502] warn_alloc_show_mem: 1 callbacks suppressed
[  390.394511] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  390.394512] Mem-Info:
[  390.394539] active_anon:54141 inactive_anon:292 isolated_anon:0
[  390.394539]  active_file:12 inactive_file:13 isolated_file:0
[  390.394539]  unevictable:0 dirty:0 writeback:0 unstable:0
[  390.394539]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  390.394539]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  390.394539]  free:13705 free_pcp:178 free_cma:0
[  390.399878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  390.406619] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  390.409002] Call Trace:
[  390.441967] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  390.451312]  dump_stack+0x244/0x39d
[  390.479446] lowmem_reserve[]: 0 2818 6321 6321
[  390.482038]  ? dump_stack_print_info.cold.1+0x20/0x20
[  390.508109] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  390.511731]  warn_alloc.cold.116+0xb7/0x1bd
[  390.516271] lowmem_reserve[]: 0 0 3503 3503
[  390.521450]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  390.548914] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  390.553225]  ? lock_downgrade+0x900/0x900
[  390.558001] lowmem_reserve[]: 0 0 0 0
[  390.562847]  ? trace_hardirqs_off+0xb8/0x310
[  390.591783] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  390.595936]  ? trace_hardirqs_off+0xb8/0x310
[  390.599709] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  390.604108]  __alloc_pages_slowpath+0x26e8/0x2e10
[  390.617592] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  390.622007]  ? warn_alloc+0x120/0x120
[  390.637220] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  390.642042]  ? print_usage_bug+0xc0/0xc0
[  390.657016] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  390.660798]  ? warn_alloc+0x120/0x120
[  390.669601] 366 total pagecache pages
[  390.673681]  ? warn_alloc+0x120/0x120
[  390.682229] 0 pages in swap cache
[  390.686008]  ? print_usage_bug+0xc0/0xc0
[  390.689779] Swap cache stats: add 0, delete 0, find 0/0
[  390.693565]  ? print_usage_bug+0xc0/0xc0
[  390.696988] Free swap  = 0kB
[  390.701034]  ? __lock_acquire+0x62f/0x4c20
[  390.706367] Total swap = 0kB
[  390.710413]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.713398] 1965979 pages RAM
[  390.717616]  ? should_fail+0x22d/0xd01
[  390.720603] 0 pages HighMem/MovableOnly
[  390.726129]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  390.729200] 342854 pages reserved
[  390.729206] 0 pages cma reserved
[  390.733076]  ? __lock_acquire+0x62f/0x4c20
[  390.737070] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  390.742104]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  390.742118]  ? __lock_acquire+0x62f/0x4c20
[  390.742132]  ? should_fail+0x22d/0xd01
[  390.746127] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  390.748906]  ? find_held_lock+0x36/0x1c0
[  390.748928]  ? mark_held_locks+0x130/0x130
[  390.753207] syz-fuzzer cpuset=/ mems_allowed=0
[  390.760027]  ? mark_held_locks+0x130/0x130
[  390.760042]  ? zap_class+0x640/0x640
[  390.804205]  ? mark_held_locks+0xc7/0x130
[  390.808348]  ? do_raw_spin_unlock+0xa7/0x330
[  390.812752]  ? zap_class+0x640/0x640
[  390.816458]  ? print_usage_bug+0xc0/0xc0
[  390.820511]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.826038]  ? check_preemption_disabled+0x48/0x280
[  390.831053]  ? __lock_is_held+0xb5/0x140
[  390.835128]  __alloc_pages_nodemask+0xa80/0xde0
[  390.839805]  ? zap_class+0x640/0x640
[  390.843519]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  390.848536]  ? find_held_lock+0x36/0x1c0
[  390.852593]  ? ____cache_alloc_node+0x1c7/0x1e0
[  390.857574]  ? lock_downgrade+0x900/0x900
[  390.861726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.867262]  cache_grow_begin+0xa5/0x8c0
[  390.871315]  ? do_raw_spin_unlock+0xa7/0x330
[  390.875722]  fallback_alloc+0x204/0x2e0
[  390.879695]  ____cache_alloc_node+0x1c7/0x1e0
[  390.884190]  kmem_cache_alloc_node+0xe3/0x730
[  390.888678]  ? ipv6_get_ifaddr+0x42e/0x620
[  390.892915]  __alloc_skb+0x119/0x770
[  390.896617]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.901887]  ? netdev_alloc_frag+0x1f0/0x1f0
[  390.906291]  ? lock_downgrade+0x900/0x900
[  390.910437]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.915968]  ? refcount_sub_and_test_checked+0x203/0x310
[  390.921416]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  390.926864]  ? addrconf_rs_timer+0x690/0x690
[  390.931279]  ndisc_alloc_skb+0x144/0x340
[  390.935340]  ndisc_send_rs+0x331/0x6e0
[  390.939222]  addrconf_rs_timer+0x314/0x690
[  390.943456]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.947690]  call_timer_fn+0x272/0x920
[  390.951568]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.956080]  ? process_timeout+0x40/0x40
[  390.960142]  ? __run_timers+0x7da/0xc70
[  390.964114]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.968692]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.973181]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.977410]  ? lockdep_hardirqs_on+0x296/0x5b0
[  390.982096]  ? trace_hardirqs_on+0xbd/0x310
[  390.986411]  ? kasan_check_read+0x11/0x20
[  390.990547]  ? __run_timers+0x7da/0xc70
[  390.994529]  ? trace_hardirqs_off_caller+0x310/0x310
[  390.999632]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  391.003863]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  391.008088]  __run_timers+0x7e5/0xc70
[  391.011892]  ? timer_fixup_init+0x70/0x70
[  391.016033]  ? _raw_spin_unlock_irq+0x27/0x80
[  391.020523]  ? _raw_spin_unlock_irq+0x27/0x80
[  391.025014]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  391.029593]  ? trace_hardirqs_on+0xbd/0x310
[  391.034165]  ? kasan_check_read+0x11/0x20
[  391.038309]  ? finish_task_switch+0x1f4/0x910
[  391.042796]  ? trace_hardirqs_off_caller+0x310/0x310
[  391.047899]  ? compat_start_thread+0x80/0x80
[  391.052317]  ? pvclock_read_flags+0x160/0x160
[  391.057108]  ? __switch_to_asm+0x34/0x70
[  391.061161]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.066696]  ? check_preemption_disabled+0x48/0x280
[  391.071718]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  391.077250]  ? rcu_pm_notify+0xc0/0xc0
[  391.081133]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.086661]  ? check_preemption_disabled+0x48/0x280
[  391.091675]  run_timer_softirq+0x52/0xb0
[  391.095733]  ? rcu_read_lock_sched_held+0x14f/0x180
[  391.100738]  __do_softirq+0x308/0xb7e
[  391.104536]  ? trace_hardirqs_on_caller+0xc0/0x310
[  391.109461]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  391.114558]  ? trace_hardirqs_on+0x310/0x310
[  391.118977]  ? schedule+0x108/0x460
[  391.122602]  ? trace_hardirqs_off+0xb8/0x310
[  391.127001]  ? smpboot_thread_fn+0x68b/0xa00
[  391.131402]  ? trace_hardirqs_on+0x310/0x310
[  391.135812]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.141351]  ? check_preemption_disabled+0x48/0x280
[  391.146363]  ? takeover_tasklets+0xa90/0xa90
[  391.150781]  run_ksoftirqd+0x5e/0x100
[  391.154595]  smpboot_thread_fn+0x68b/0xa00
[  391.159082]  ? sort_range+0x30/0x30
[  391.162702]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  391.167796]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.173337]  ? __kthread_parkme+0xfb/0x1a0
[  391.177572]  ? sort_range+0x30/0x30
[  391.181191]  kthread+0x35a/0x440
[  391.184551]  ? kthread_stop+0x900/0x900
[  391.188520]  ret_from_fork+0x3a/0x50
[  391.192245] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  391.192309] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  391.199165] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  391.199172] Call Trace:
[  391.205719] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  391.214977]  <IRQ>
[  391.217543] ksoftirqd/0 cpuset=/ mems_allowed=0
[  391.227842]  dump_stack+0x244/0x39d
[  391.238634]  ? dump_stack_print_info.cold.1+0x20/0x20
[  391.243838]  warn_alloc.cold.116+0xb7/0x1bd
[  391.248157]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  391.253003]  ? lock_downgrade+0x900/0x900
[  391.258114]  ? trace_hardirqs_off+0xb8/0x310
[  391.262524]  ? trace_hardirqs_off+0xb8/0x310
[  391.266924]  ? noop_count+0x40/0x40
[  391.270551]  __alloc_pages_slowpath+0x26e8/0x2e10
[  391.275400]  ? check_usage+0x1aa/0x790
[  391.279285]  ? warn_alloc+0x120/0x120
[  391.283088]  ? warn_alloc+0x120/0x120
[  391.286883]  ? __bfs+0xb0/0x780
[  391.290160]  ? warn_alloc+0x120/0x120
[  391.293956]  ? print_usage_bug+0xc0/0xc0
[  391.298023]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.303558]  ? should_fail+0x22d/0xd01
[  391.307441]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  391.313329]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  391.318431]  ? __lock_acquire+0x62f/0x4c20
[  391.322661]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  391.327757]  ? should_fail+0x22d/0xd01
[  391.331648]  ? mark_held_locks+0x130/0x130
[  391.335877]  ? mark_held_locks+0x130/0x130
[  391.340107]  ? print_usage_bug+0xc0/0xc0
[  391.344170]  ? find_held_lock+0x36/0x1c0
[  391.348245]  ? zap_class+0x640/0x640
[  391.351959]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.358445]  ? check_preemption_disabled+0x48/0x280
[  391.363466]  ? __lock_is_held+0xb5/0x140
[  391.367527]  __alloc_pages_nodemask+0xa80/0xde0
[  391.372185]  ? zap_class+0x640/0x640
[  391.375894]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  391.380914]  ? find_held_lock+0x36/0x1c0
[  391.384975]  ? ____cache_alloc_node+0x1c7/0x1e0
[  391.389640]  ? lock_downgrade+0x900/0x900
[  391.393785]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.399328]  cache_grow_begin+0xa5/0x8c0
[  391.403383]  ? do_raw_spin_unlock+0xa7/0x330
[  391.407799]  fallback_alloc+0x204/0x2e0
[  391.411794]  ____cache_alloc_node+0x1c7/0x1e0
[  391.416287]  kmem_cache_alloc_node+0xe3/0x730
[  391.420777]  ? mark_held_locks+0xc7/0x130
[  391.424939]  __alloc_skb+0x119/0x770
[  391.428663]  ? netdev_alloc_frag+0x1f0/0x1f0
[  391.433062]  ? do_raw_spin_trylock+0x270/0x270
[  391.437640]  ? kmem_cache_alloc_trace+0x353/0x750
[  391.442482]  ? queue_work_on+0x12c/0x1e0
[  391.446550]  ? switchdev_port_obj_del+0xdc/0x440
[  391.451309]  ? switchdev_trans_item_enqueue+0x260/0x260
[  391.457019]  ? mod_timer+0x631/0x1560
[  391.460808]  ? wake_up_klogd+0x180/0x180
[  391.464860]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  391.469876]  __br_mdb_notify+0x4ff/0x15d0
[  391.474025]  ? __br_mdb_add+0x7f0/0x7f0
[  391.478013]  ? zap_class+0x640/0x640
[  391.481728]  ? br_multicast_group_expired+0x96/0x610
[  391.486832]  br_mdb_notify+0x310/0x410
[  391.490715]  ? br_mdb_dump+0x27b0/0x27b0
[  391.494776]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.500325]  br_multicast_group_expired+0x1bc/0x610
[  391.505364]  ? br_mdb_free+0x80/0x80
[  391.509079]  call_timer_fn+0x272/0x920
[  391.512958]  ? br_mdb_free+0x80/0x80
[  391.516661]  ? process_timeout+0x40/0x40
[  391.520722]  ? mark_held_locks+0xc7/0x130
[  391.524869]  ? _raw_spin_unlock_irq+0x27/0x80
[  391.529357]  ? _raw_spin_unlock_irq+0x27/0x80
[  391.533841]  ? br_mdb_free+0x80/0x80
[  391.537545]  ? lockdep_hardirqs_on+0x296/0x5b0
[  391.542119]  ? trace_hardirqs_on+0xbd/0x310
[  391.546432]  ? kasan_check_read+0x11/0x20
[  391.550572]  ? __run_timers+0x7da/0xc70
[  391.554537]  ? trace_hardirqs_off_caller+0x310/0x310
[  391.560449]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  391.564682]  ? br_mdb_free+0x80/0x80
[  391.568384]  __run_timers+0x7e5/0xc70
[  391.572182]  ? timer_fixup_init+0x70/0x70
[  391.576320]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  391.581330]  ? zap_class+0x640/0x640
[  391.585042]  ? print_usage_bug+0xc0/0xc0
[  391.589099]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  391.594288]  ? find_held_lock+0x36/0x1c0
[  391.598354]  ? zap_class+0x640/0x640
[  391.602082]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.607615]  ? check_preemption_disabled+0x48/0x280
[  391.612632]  ? __lock_is_held+0xb5/0x140
[  391.616706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.622239]  ? check_preemption_disabled+0x48/0x280
[  391.627265]  run_timer_softirq+0x52/0xb0
[  391.631320]  ? rcu_read_lock_sched_held+0x14f/0x180
[  391.636330]  __do_softirq+0x308/0xb7e
[  391.640126]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  391.644616]  ? lock_downgrade+0x900/0x900
[  391.648764]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  391.653879]  ? pvclock_read_flags+0x160/0x160
[  391.659120]  ? lapic_next_event+0x5a/0x90
[  391.663266]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.668820]  ? kvm_clock_read+0x18/0x30
[  391.672872]  ? kvm_sched_clock_read+0x9/0x20
[  391.677279]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.682810]  ? check_preemption_disabled+0x48/0x280
[  391.687841]  irq_exit+0x17f/0x1c0
[  391.691290]  smp_apic_timer_interrupt+0x1cb/0x760
[  391.696124]  ? smp_reschedule_interrupt+0x109/0x650
[  391.701136]  ? smp_call_function_single_interrupt+0x650/0x650
[  391.707014]  ? interrupt_entry+0xb5/0xc0
[  391.711082]  ? trace_hardirqs_off_caller+0xbb/0x310
[  391.716088]  ? trace_hardirqs_off_caller+0xbb/0x310
[  391.721114]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.725956]  ? trace_hardirqs_on_caller+0x310/0x310
[  391.730963]  ? trace_hardirqs_on_caller+0x310/0x310
[  391.735969]  ? task_prio+0x50/0x50
[  391.739498]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.745028]  ? check_preemption_disabled+0x48/0x280
[  391.750040]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.754880]  apic_timer_interrupt+0xf/0x20
[  391.759853]  </IRQ>
[  391.762397] RIP: 0010:dump_stack+0x358/0x39d
[  391.766800] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  391.785704] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  391.793407] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  391.800671] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  391.807933] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  391.815195] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  391.822454] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  391.829733]  ? dump_stack+0x34f/0x39d
[  391.833547]  ? dump_stack_print_info.cold.1+0x20/0x20
[  391.838731]  ? mark_held_locks+0x130/0x130
[  391.842966]  ? mark_held_locks+0x130/0x130
[  391.847201]  dump_header+0x27b/0xf72
[  391.850923]  ? pagefault_out_of_memory+0x197/0x197
[  391.855854]  ? __lock_acquire+0x62f/0x4c20
[  391.860501]  ? percpu_ref_get_many+0x240/0x240
[  391.865082]  ? print_usage_bug+0xc0/0xc0
[  391.869145]  ? zap_class+0x640/0x640
[  391.872857]  ? print_usage_bug+0xc0/0xc0
[  391.876913]  ? print_usage_bug+0xc0/0xc0
[  391.880966]  ? zap_class+0x640/0x640
[  391.884679]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.890217]  ? find_held_lock+0x36/0x1c0
[  391.894282]  ? mark_held_locks+0xc7/0x130
[  391.898426]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  391.903520]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  391.908619]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  391.913196]  ? trace_hardirqs_on+0xbd/0x310
[  391.917516]  ? kasan_check_read+0x11/0x20
[  391.921655]  ? ___ratelimit+0x3b4/0x672
[  391.925628]  ? trace_hardirqs_off_caller+0x310/0x310
[  391.931248]  ? trace_hardirqs_on+0x310/0x310
[  391.935661]  ? lock_downgrade+0x900/0x900
[  391.939810]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  391.944909]  ? ___ratelimit+0x3b9/0x672
[  391.948877]  ? idr_get_free+0xf70/0xf70
[  391.952847]  ? find_held_lock+0x36/0x1c0
[  391.957686]  oom_kill_process.cold.27+0x10/0x903
[  391.962444]  ? zap_class+0x640/0x640
[  391.966154]  ? check_preemption_disabled+0x48/0x280
[  391.971175]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  391.976095]  ? kasan_check_read+0x11/0x20
[  391.980237]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.985516]  ? oom_evaluate_task+0x540/0x540
[  391.989921]  ? find_held_lock+0x36/0x1c0
[  391.993983]  ? out_of_memory+0x974/0x1430
[  391.998127]  ? lock_downgrade+0x900/0x900
[  392.002275]  ? check_preemption_disabled+0x48/0x280
[  392.007288]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  392.012206]  ? kasan_check_read+0x11/0x20
[  392.016362]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.021632]  ? rcu_softirq_qs+0x20/0x20
[  392.025615]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.031164]  ? oom_evaluate_task+0x302/0x540
[  392.035569]  out_of_memory+0xa84/0x1430
[  392.039542]  ? oom_killer_disable+0x3a0/0x3a0
[  392.044029]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  392.048957]  ? __ww_mutex_check_waiters+0x160/0x160
[  392.053974]  __alloc_pages_slowpath+0x2354/0x2e10
[  392.059606]  ? warn_alloc+0x120/0x120
[  392.063402]  ? mark_held_locks+0x130/0x130
[  392.067636]  ? find_get_entry+0xaae/0x1120
[  392.071873]  ? filemap_map_pages+0x1a20/0x1a20
[  392.076457]  ? zap_class+0x640/0x640
[  392.080170]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.085703]  ? check_preemption_disabled+0x48/0x280
[  392.090712]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.096248]  ? should_fail+0x22d/0xd01
[  392.100143]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  392.105241]  ? zap_class+0x640/0x640
[  392.108971]  ? __lock_is_held+0xb5/0x140
[  392.113035]  ? mark_held_locks+0x130/0x130
[  392.117273]  ? lock_release+0xa00/0xa00
[  392.121239]  ? perf_trace_sched_process_exec+0x860/0x860
[  392.126689]  ? xa_load+0x2ba/0x460
[  392.130225]  ? lock_downgrade+0x900/0x900
[  392.134387]  ? __might_sleep+0x95/0x190
[  392.138356]  __alloc_pages_nodemask+0xa80/0xde0
[  392.143025]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  392.148032]  ? __page_cache_alloc+0x191/0x5c0
[  392.152518]  ? xa_load+0x2e1/0x460
[  392.156295]  ? xa_clear_mark+0x40/0x40
[  392.160173]  ? zap_class+0x640/0x640
[  392.163885]  ? zap_class+0x640/0x640
[  392.167592]  ? zap_class+0x640/0x640
[  392.171300]  ? __do_page_cache_readahead+0x663/0x810
[  392.176402]  ? find_held_lock+0x36/0x1c0
[  392.180459]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  392.185998]  alloc_pages_current+0x173/0x350
[  392.190409]  __page_cache_alloc+0x38c/0x5c0
[  392.194725]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  392.199654]  ? kasan_check_read+0x11/0x20
[  392.203806]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.209076]  ? generic_perform_write+0x6a0/0x6a0
[  392.213825]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.219354]  ? check_preemption_disabled+0x48/0x280
[  392.224372]  filemap_fault+0x1595/0x25f0
[  392.228452]  ? __lock_page_or_retry+0xa00/0xa00
[  392.233112]  ? mark_held_locks+0x130/0x130
[  392.237345]  ? filemap_map_pages+0xd6b/0x1a20
[  392.241832]  ? lock_downgrade+0x900/0x900
[  392.245971]  ? check_preemption_disabled+0x48/0x280
[  392.250981]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  392.256485]  ? kasan_check_read+0x11/0x20
[  392.260629]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.265896]  ? rcu_softirq_qs+0x20/0x20
[  392.269893]  ? filemap_map_pages+0xd92/0x1a20
[  392.274390]  ? find_get_entries_tag+0x1400/0x1400
[  392.279231]  ? debug_object_destroy+0x2b0/0x2b0
[  392.283895]  ? lock_pi_update_atomic+0x150/0x150
[  392.288646]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.294188]  ? lock_acquire+0x1ed/0x520
[  392.298149]  ? ext4_filemap_fault+0x7a/0xad
[  392.302488]  ? lock_release+0xa00/0xa00
[  392.306451]  ? perf_trace_sched_process_exec+0x860/0x860
[  392.311892]  ? print_usage_bug+0xc0/0xc0
[  392.315947]  ? print_usage_bug+0xc0/0xc0
[  392.320009]  ? down_read+0x8d/0x120
[  392.323627]  ? ext4_filemap_fault+0x7a/0xad
[  392.327943]  ? __down_interruptible+0x700/0x700
[  392.332630]  ext4_filemap_fault+0x82/0xad
[  392.336784]  __do_fault+0x100/0x6b0
[  392.340406]  ? pmd_devmap_trans_unstable+0x220/0x220
[  392.345502]  ? mark_held_locks+0x130/0x130
[  392.349731]  ? mark_held_locks+0x130/0x130
[  392.353965]  ? do_raw_spin_trylock+0x270/0x270
[  392.359481]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.365015]  __handle_mm_fault+0x3ea0/0x5be0
[  392.369411]  ? perf_trace_lock+0x7a0/0x7a0
[  392.373757]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  392.378600]  ? __switch_to_asm+0x34/0x70
[  392.382650]  ? __switch_to_asm+0x34/0x70
[  392.386716]  ? zap_class+0x640/0x640
[  392.390432]  ? zap_class+0x640/0x640
[  392.394136]  ? __x64_sys_futex+0x53e/0x6a0
[  392.398363]  ? find_held_lock+0x36/0x1c0
[  392.402421]  ? handle_mm_fault+0x42a/0xc70
[  392.406648]  ? lock_downgrade+0x900/0x900
[  392.410787]  ? check_preemption_disabled+0x48/0x280
[  392.415801]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  392.420744]  ? kasan_check_read+0x11/0x20
[  392.424888]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.430156]  ? rcu_softirq_qs+0x20/0x20
[  392.434147]  ? trace_hardirqs_off_caller+0x310/0x310
[  392.439248]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.444774]  ? check_preemption_disabled+0x48/0x280
[  392.449787]  handle_mm_fault+0x54f/0xc70
[  392.453864]  ? __handle_mm_fault+0x5be0/0x5be0
[  392.459386]  ? find_vma+0x34/0x190
[  392.462923]  __do_page_fault+0x5e8/0xe60
[  392.466975]  ? trace_hardirqs_off+0xb8/0x310
[  392.471421]  do_page_fault+0xf2/0x7e0
[  392.475212]  ? vmalloc_sync_all+0x30/0x30
[  392.479350]  ? error_entry+0x70/0xd0
[  392.483055]  ? trace_hardirqs_off_caller+0xbb/0x310
[  392.488068]  ? trace_hardirqs_on_caller+0xc0/0x310
[  392.492988]  ? syscall_return_slowpath+0x5e0/0x5e0
[  392.497922]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.502755]  ? trace_hardirqs_on_caller+0x310/0x310
[  392.507760]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  392.513204]  ? prepare_exit_to_usermode+0x291/0x3b0
[  392.518211]  ? page_fault+0x8/0x30
[  392.521745]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.526580]  ? page_fault+0x8/0x30
[  392.530111]  page_fault+0x1e/0x30
[  392.533557] RIP: 0033:0x45ddf3
[  392.536769] Code: Bad RIP value.
[  392.540123] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  392.545474] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  392.552818] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  392.560835] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  392.568099] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  392.575364] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  392.582649] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  392.582665] warn_alloc_show_mem: 1 callbacks suppressed
[  392.582668] Mem-Info:
[  392.589397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  392.594774] active_anon:54141 inactive_anon:292 isolated_anon:0
[  392.594774]  active_file:12 inactive_file:13 isolated_file:0
[  392.594774]  unevictable:0 dirty:0 writeback:0 unstable:0
[  392.594774]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  392.594774]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  392.594774]  free:13705 free_pcp:178 free_cma:0
[  392.597143] Call Trace:
[  392.606512] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  392.639358]  dump_stack+0x244/0x39d
[  392.641906] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  392.669910]  ? dump_stack_print_info.cold.1+0x20/0x20
[  392.673512] lowmem_reserve[]: 0 2818 6321 6321
[  392.699616]  warn_alloc.cold.116+0xb7/0x1bd
[  392.704766] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  392.709332]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  392.713615] lowmem_reserve[]: 0 0 3503 3503
[  392.741109]  ? lock_downgrade+0x900/0x900
[  392.745917] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  392.750244]  ? trace_hardirqs_off+0xb8/0x310
[  392.754375] lowmem_reserve[]: 0 0 0 0
[  392.783625]  ? trace_hardirqs_off+0xb8/0x310
[  392.788003] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  392.791793]  __alloc_pages_slowpath+0x26e8/0x2e10
[  392.796159] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  392.809703]  ? warn_alloc+0x120/0x120
[  392.814490] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  392.829753]  ? print_usage_bug+0xc0/0xc0
[  392.833541] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  392.847755]  ? warn_alloc+0x120/0x120
[  392.851789] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  392.860950]  ? warn_alloc+0x120/0x120
[  392.864731] 366 total pagecache pages
[  392.873283]  ? print_usage_bug+0xc0/0xc0
[  392.877060] 0 pages in swap cache
[  392.880841]  ? print_usage_bug+0xc0/0xc0
[  392.884875] Swap cache stats: add 0, delete 0, find 0/0
[  392.888308]  ? __lock_acquire+0x62f/0x4c20
[  392.892338] Free swap  = 0kB
[  392.897797]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.901999] Total swap = 0kB
[  392.905003]  ? should_fail+0x22d/0xd01
[  392.910506] 1965979 pages RAM
[  392.913514]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  392.917365] 0 pages HighMem/MovableOnly
[  392.917372] 342854 pages reserved
[  392.920462]  ? __lock_acquire+0x62f/0x4c20
[  392.925534] 0 pages cma reserved
[  392.929493]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  392.933549] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  392.937142]  ? __lock_acquire+0x62f/0x4c20
[  392.940475] syz-fuzzer cpuset=/ mems_allowed=0
[  392.945555]  ? should_fail+0x22d/0xd01
[  392.945570]  ? find_held_lock+0x36/0x1c0
[  392.972834]  ? mark_held_locks+0x130/0x130
[  392.977065]  ? mark_held_locks+0x130/0x130
[  392.981290]  ? zap_class+0x640/0x640
[  392.985001]  ? mark_held_locks+0xc7/0x130
[  392.989152]  ? do_raw_spin_unlock+0xa7/0x330
[  392.993554]  ? zap_class+0x640/0x640
[  392.997259]  ? print_usage_bug+0xc0/0xc0
[  393.001311]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.006835]  ? check_preemption_disabled+0x48/0x280
[  393.011849]  ? __lock_is_held+0xb5/0x140
[  393.015902]  __alloc_pages_nodemask+0xa80/0xde0
[  393.020559]  ? zap_class+0x640/0x640
[  393.024266]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  393.029286]  ? find_held_lock+0x36/0x1c0
[  393.033350]  ? ____cache_alloc_node+0x1c7/0x1e0
[  393.038016]  ? lock_downgrade+0x900/0x900
[  393.042336]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.047868]  cache_grow_begin+0xa5/0x8c0
[  393.051918]  ? do_raw_spin_unlock+0xa7/0x330
[  393.056610]  fallback_alloc+0x204/0x2e0
[  393.060575]  ____cache_alloc_node+0x1c7/0x1e0
[  393.065066]  kmem_cache_alloc_node+0xe3/0x730
[  393.069554]  ? ipv6_get_ifaddr+0x42e/0x620
[  393.073794]  __alloc_skb+0x119/0x770
[  393.077496]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.082769]  ? netdev_alloc_frag+0x1f0/0x1f0
[  393.087168]  ? lock_downgrade+0x900/0x900
[  393.091317]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.096845]  ? refcount_sub_and_test_checked+0x203/0x310
[  393.102288]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  393.107734]  ? addrconf_rs_timer+0x690/0x690
[  393.112144]  ndisc_alloc_skb+0x144/0x340
[  393.116202]  ndisc_send_rs+0x331/0x6e0
[  393.120089]  addrconf_rs_timer+0x314/0x690
[  393.124323]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.128564]  call_timer_fn+0x272/0x920
[  393.132442]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.136690]  ? process_timeout+0x40/0x40
[  393.140754]  ? __run_timers+0x7da/0xc70
[  393.144723]  ? _raw_spin_unlock_irq+0x27/0x80
[  393.149209]  ? _raw_spin_unlock_irq+0x27/0x80
[  393.153706]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.158238]  ? lockdep_hardirqs_on+0x296/0x5b0
[  393.162815]  ? trace_hardirqs_on+0xbd/0x310
[  393.167126]  ? kasan_check_read+0x11/0x20
[  393.171263]  ? __run_timers+0x7da/0xc70
[  393.175231]  ? trace_hardirqs_off_caller+0x310/0x310
[  393.180333]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.184562]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.188788]  __run_timers+0x7e5/0xc70
[  393.192588]  ? timer_fixup_init+0x70/0x70
[  393.196734]  ? _raw_spin_unlock_irq+0x27/0x80
[  393.201220]  ? _raw_spin_unlock_irq+0x27/0x80
[  393.205716]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  393.210292]  ? trace_hardirqs_on+0xbd/0x310
[  393.214621]  ? kasan_check_read+0x11/0x20
[  393.218761]  ? finish_task_switch+0x1f4/0x910
[  393.223252]  ? trace_hardirqs_off_caller+0x310/0x310
[  393.228351]  ? compat_start_thread+0x80/0x80
[  393.232875]  ? pvclock_read_flags+0x160/0x160
[  393.237360]  ? __switch_to_asm+0x34/0x70
[  393.241414]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.246945]  ? check_preemption_disabled+0x48/0x280
[  393.251959]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  393.257824]  ? rcu_pm_notify+0xc0/0xc0
[  393.261707]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.267236]  ? check_preemption_disabled+0x48/0x280
[  393.272253]  run_timer_softirq+0x52/0xb0
[  393.276310]  ? rcu_read_lock_sched_held+0x14f/0x180
[  393.281317]  __do_softirq+0x308/0xb7e
[  393.285119]  ? trace_hardirqs_on_caller+0xc0/0x310
[  393.290046]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  393.295143]  ? trace_hardirqs_on+0x310/0x310
[  393.299550]  ? schedule+0x108/0x460
[  393.303177]  ? trace_hardirqs_off+0xb8/0x310
[  393.307581]  ? smpboot_thread_fn+0x68b/0xa00
[  393.311992]  ? trace_hardirqs_on+0x310/0x310
[  393.316395]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.321924]  ? check_preemption_disabled+0x48/0x280
[  393.326945]  ? takeover_tasklets+0xa90/0xa90
[  393.331345]  run_ksoftirqd+0x5e/0x100
[  393.335136]  smpboot_thread_fn+0x68b/0xa00
[  393.339364]  ? sort_range+0x30/0x30
[  393.342983]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  393.348072]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.353595]  ? __kthread_parkme+0xfb/0x1a0
[  393.358098]  ? sort_range+0x30/0x30
[  393.361714]  kthread+0x35a/0x440
[  393.365077]  ? kthread_stop+0x900/0x900
[  393.369044]  ret_from_fork+0x3a/0x50
[  393.372771] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  393.372850] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  393.379692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  393.379699] Call Trace:
[  393.386246] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  393.395504]  <IRQ>
[  393.398064] ksoftirqd/0 cpuset=/ mems_allowed=0
[  393.408356]  dump_stack+0x244/0x39d
[  393.418744]  ? dump_stack_print_info.cold.1+0x20/0x20
[  393.423936]  warn_alloc.cold.116+0xb7/0x1bd
[  393.428262]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  393.433101]  ? lock_downgrade+0x900/0x900
[  393.437249]  ? trace_hardirqs_off+0xb8/0x310
[  393.441652]  ? trace_hardirqs_off+0xb8/0x310
[  393.446074]  __alloc_pages_slowpath+0x26e8/0x2e10
[  393.450938]  ? warn_alloc+0x120/0x120
[  393.454752]  ? warn_alloc+0x120/0x120
[  393.458877]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  393.463884]  ? warn_alloc+0x120/0x120
[  393.467696]  ? print_usage_bug+0xc0/0xc0
[  393.471750]  ? print_usage_bug+0xc0/0xc0
[  393.475802]  ? check_usage+0x1aa/0x790
[  393.479685]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.485212]  ? should_fail+0x22d/0xd01
[  393.489089]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  393.494962]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  393.500051]  ? __lock_acquire+0x62f/0x4c20
[  393.504274]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  393.509361]  ? should_fail+0x22d/0xd01
[  393.513246]  ? mark_held_locks+0x130/0x130
[  393.517469]  ? mark_held_locks+0x130/0x130
[  393.521688]  ? print_usage_bug+0xc0/0xc0
[  393.525750]  ? find_held_lock+0x36/0x1c0
[  393.529805]  ? zap_class+0x640/0x640
[  393.533514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.539041]  ? check_preemption_disabled+0x48/0x280
[  393.544061]  ? __lock_is_held+0xb5/0x140
[  393.548127]  __alloc_pages_nodemask+0xa80/0xde0
[  393.552785]  ? zap_class+0x640/0x640
[  393.556494]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  393.561847]  ? find_held_lock+0x36/0x1c0
[  393.565914]  ? ____cache_alloc_node+0x1c7/0x1e0
[  393.570584]  ? lock_downgrade+0x900/0x900
[  393.574729]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.580258]  cache_grow_begin+0xa5/0x8c0
[  393.584311]  ? do_raw_spin_unlock+0xa7/0x330
[  393.588718]  fallback_alloc+0x204/0x2e0
[  393.592703]  ____cache_alloc_node+0x1c7/0x1e0
[  393.597194]  kmem_cache_alloc_node+0xe3/0x730
[  393.601681]  ? mark_held_locks+0xc7/0x130
[  393.605832]  __alloc_skb+0x119/0x770
[  393.609543]  ? netdev_alloc_frag+0x1f0/0x1f0
[  393.613938]  ? do_raw_spin_trylock+0x270/0x270
[  393.618527]  ? kmem_cache_alloc_trace+0x353/0x750
[  393.623363]  ? queue_work_on+0x12c/0x1e0
[  393.627423]  ? switchdev_port_obj_del+0xdc/0x440
[  393.632178]  ? switchdev_trans_item_enqueue+0x260/0x260
[  393.637541]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  393.642556]  __br_mdb_notify+0x4ff/0x15d0
[  393.646718]  ? __br_mdb_add+0x7f0/0x7f0
[  393.650699]  ? zap_class+0x640/0x640
[  393.654420]  ? br_multicast_group_expired+0x96/0x610
[  393.660247]  ? lock_downgrade+0x900/0x900
[  393.664397]  br_mdb_notify+0x310/0x410
[  393.668277]  ? br_mdb_dump+0x27b0/0x27b0
[  393.672332]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.677872]  br_multicast_group_expired+0x1bc/0x610
[  393.682882]  ? br_mdb_free+0x80/0x80
[  393.686597]  call_timer_fn+0x272/0x920
[  393.690475]  ? br_mdb_free+0x80/0x80
[  393.694186]  ? process_timeout+0x40/0x40
[  393.698255]  ? mark_held_locks+0xc7/0x130
[  393.702404]  ? _raw_spin_unlock_irq+0x27/0x80
[  393.706889]  ? _raw_spin_unlock_irq+0x27/0x80
[  393.711379]  ? br_mdb_free+0x80/0x80
[  393.715087]  ? lockdep_hardirqs_on+0x296/0x5b0
[  393.719683]  ? trace_hardirqs_on+0xbd/0x310
[  393.723999]  ? kasan_check_read+0x11/0x20
[  393.728136]  ? __run_timers+0x7da/0xc70
[  393.732104]  ? trace_hardirqs_off_caller+0x310/0x310
[  393.737204]  ? br_mdb_free+0x80/0x80
[  393.740917]  ? br_mdb_free+0x80/0x80
[  393.744618]  __run_timers+0x7e5/0xc70
[  393.748417]  ? timer_fixup_init+0x70/0x70
[  393.752576]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  393.758073]  ? zap_class+0x640/0x640
[  393.762066]  ? print_usage_bug+0xc0/0xc0
[  393.766138]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  393.771326]  ? find_held_lock+0x36/0x1c0
[  393.775381]  ? zap_class+0x640/0x640
[  393.779088]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.784620]  ? check_preemption_disabled+0x48/0x280
[  393.789645]  ? __lock_is_held+0xb5/0x140
[  393.793698]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.799229]  ? check_preemption_disabled+0x48/0x280
[  393.804239]  run_timer_softirq+0x52/0xb0
[  393.808293]  ? rcu_read_lock_sched_held+0x14f/0x180
[  393.813301]  __do_softirq+0x308/0xb7e
[  393.817098]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  393.821581]  ? lock_downgrade+0x900/0x900
[  393.825722]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  393.830825]  ? pvclock_read_flags+0x160/0x160
[  393.835311]  ? lapic_next_event+0x5a/0x90
[  393.839452]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.844984]  ? kvm_clock_read+0x18/0x30
[  393.848948]  ? kvm_sched_clock_read+0x9/0x20
[  393.853348]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.859688]  ? check_preemption_disabled+0x48/0x280
[  393.864706]  irq_exit+0x17f/0x1c0
[  393.868158]  smp_apic_timer_interrupt+0x1cb/0x760
[  393.872995]  ? smp_reschedule_interrupt+0x109/0x650
[  393.878008]  ? smp_call_function_single_interrupt+0x650/0x650
[  393.883896]  ? interrupt_entry+0xb5/0xc0
[  393.887953]  ? trace_hardirqs_off_caller+0xbb/0x310
[  393.892961]  ? trace_hardirqs_off_caller+0xbb/0x310
[  393.897971]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.902809]  ? trace_hardirqs_on_caller+0x310/0x310
[  393.907817]  ? trace_hardirqs_on_caller+0x310/0x310
[  393.912820]  ? task_prio+0x50/0x50
[  393.916352]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.921884]  ? check_preemption_disabled+0x48/0x280
[  393.926900]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.932262]  apic_timer_interrupt+0xf/0x20
[  393.936497]  </IRQ>
[  393.938731] RIP: 0010:dump_stack+0x358/0x39d
[  393.943152] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  393.962792] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  393.970487] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  393.977746] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  393.985004] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  393.992267] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  393.999530] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  394.007149]  ? dump_stack+0x34f/0x39d
[  394.010952]  ? dump_stack_print_info.cold.1+0x20/0x20
[  394.016141]  ? mark_held_locks+0x130/0x130
[  394.020369]  ? mark_held_locks+0x130/0x130
[  394.024604]  dump_header+0x27b/0xf72
[  394.028328]  ? pagefault_out_of_memory+0x197/0x197
[  394.033255]  ? __lock_acquire+0x62f/0x4c20
[  394.037486]  ? percpu_ref_get_many+0x240/0x240
[  394.042063]  ? print_usage_bug+0xc0/0xc0
[  394.046121]  ? zap_class+0x640/0x640
[  394.049829]  ? print_usage_bug+0xc0/0xc0
[  394.053879]  ? print_usage_bug+0xc0/0xc0
[  394.058708]  ? zap_class+0x640/0x640
[  394.062420]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.067948]  ? find_held_lock+0x36/0x1c0
[  394.072016]  ? mark_held_locks+0xc7/0x130
[  394.076176]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  394.081277]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  394.086392]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  394.090967]  ? trace_hardirqs_on+0xbd/0x310
[  394.095300]  ? kasan_check_read+0x11/0x20
[  394.099464]  ? ___ratelimit+0x3b4/0x672
[  394.103435]  ? trace_hardirqs_off_caller+0x310/0x310
[  394.108532]  ? trace_hardirqs_on+0x310/0x310
[  394.112929]  ? lock_downgrade+0x900/0x900
[  394.117081]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  394.122176]  ? ___ratelimit+0x3b9/0x672
[  394.126147]  ? idr_get_free+0xf70/0xf70
[  394.130109]  ? find_held_lock+0x36/0x1c0
[  394.134170]  oom_kill_process.cold.27+0x10/0x903
[  394.138916]  ? zap_class+0x640/0x640
[  394.142629]  ? check_preemption_disabled+0x48/0x280
[  394.147642]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  394.152576]  ? kasan_check_read+0x11/0x20
[  394.156714]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.162292]  ? oom_evaluate_task+0x540/0x540
[  394.166715]  ? find_held_lock+0x36/0x1c0
[  394.170776]  ? out_of_memory+0x974/0x1430
[  394.174917]  ? lock_downgrade+0x900/0x900
[  394.179059]  ? check_preemption_disabled+0x48/0x280
[  394.184069]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  394.188993]  ? kasan_check_read+0x11/0x20
[  394.193140]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.198405]  ? rcu_softirq_qs+0x20/0x20
[  394.202372]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.207902]  ? oom_evaluate_task+0x302/0x540
[  394.212325]  out_of_memory+0xa84/0x1430
[  394.216296]  ? oom_killer_disable+0x3a0/0x3a0
[  394.220788]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  394.225714]  ? __ww_mutex_check_waiters+0x160/0x160
[  394.230735]  __alloc_pages_slowpath+0x2354/0x2e10
[  394.236207]  ? warn_alloc+0x120/0x120
[  394.240002]  ? mark_held_locks+0x130/0x130
[  394.244230]  ? find_get_entry+0xaae/0x1120
[  394.248467]  ? filemap_map_pages+0x1a20/0x1a20
[  394.253047]  ? zap_class+0x640/0x640
[  394.257164]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.262692]  ? check_preemption_disabled+0x48/0x280
[  394.267701]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.273230]  ? should_fail+0x22d/0xd01
[  394.277112]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  394.282209]  ? zap_class+0x640/0x640
[  394.285935]  ? __lock_is_held+0xb5/0x140
[  394.289998]  ? mark_held_locks+0x130/0x130
[  394.294227]  ? lock_release+0xa00/0xa00
[  394.298195]  ? perf_trace_sched_process_exec+0x860/0x860
[  394.303638]  ? xa_load+0x2ba/0x460
[  394.307173]  ? lock_downgrade+0x900/0x900
[  394.311323]  ? __might_sleep+0x95/0x190
[  394.315297]  __alloc_pages_nodemask+0xa80/0xde0
[  394.319962]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  394.324972]  ? __page_cache_alloc+0x191/0x5c0
[  394.329567]  ? xa_load+0x2e1/0x460
[  394.333107]  ? xa_clear_mark+0x40/0x40
[  394.337002]  ? zap_class+0x640/0x640
[  394.340708]  ? zap_class+0x640/0x640
[  394.344412]  ? zap_class+0x640/0x640
[  394.348130]  ? __do_page_cache_readahead+0x663/0x810
[  394.353223]  ? find_held_lock+0x36/0x1c0
[  394.357277]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  394.363860]  alloc_pages_current+0x173/0x350
[  394.368267]  __page_cache_alloc+0x38c/0x5c0
[  394.372578]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  394.377505]  ? kasan_check_read+0x11/0x20
[  394.381643]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.386914]  ? generic_perform_write+0x6a0/0x6a0
[  394.391660]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.397194]  ? check_preemption_disabled+0x48/0x280
[  394.402221]  filemap_fault+0x1595/0x25f0
[  394.406284]  ? __lock_page_or_retry+0xa00/0xa00
[  394.410948]  ? mark_held_locks+0x130/0x130
[  394.415189]  ? filemap_map_pages+0xd6b/0x1a20
[  394.419677]  ? lock_downgrade+0x900/0x900
[  394.423821]  ? check_preemption_disabled+0x48/0x280
[  394.428834]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  394.433756]  ? kasan_check_read+0x11/0x20
[  394.437897]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.443167]  ? rcu_softirq_qs+0x20/0x20
[  394.447143]  ? filemap_map_pages+0xd92/0x1a20
[  394.451646]  ? find_get_entries_tag+0x1400/0x1400
[  394.456482]  ? debug_object_destroy+0x2b0/0x2b0
[  394.462120]  ? lock_pi_update_atomic+0x150/0x150
[  394.466869]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.472420]  ? lock_acquire+0x1ed/0x520
[  394.476383]  ? ext4_filemap_fault+0x7a/0xad
[  394.480702]  ? lock_release+0xa00/0xa00
[  394.484671]  ? perf_trace_sched_process_exec+0x860/0x860
[  394.490117]  ? print_usage_bug+0xc0/0xc0
[  394.494171]  ? print_usage_bug+0xc0/0xc0
[  394.498236]  ? down_read+0x8d/0x120
[  394.501851]  ? ext4_filemap_fault+0x7a/0xad
[  394.506164]  ? __down_interruptible+0x700/0x700
[  394.510834]  ext4_filemap_fault+0x82/0xad
[  394.514975]  __do_fault+0x100/0x6b0
[  394.518603]  ? pmd_devmap_trans_unstable+0x220/0x220
[  394.523703]  ? mark_held_locks+0x130/0x130
[  394.527932]  ? mark_held_locks+0x130/0x130
[  394.532163]  ? do_raw_spin_trylock+0x270/0x270
[  394.536745]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.542276]  __handle_mm_fault+0x3ea0/0x5be0
[  394.546675]  ? perf_trace_lock+0x7a0/0x7a0
[  394.550910]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  394.555754]  ? __switch_to_asm+0x34/0x70
[  394.560548]  ? __switch_to_asm+0x34/0x70
[  394.564615]  ? zap_class+0x640/0x640
[  394.568319]  ? zap_class+0x640/0x640
[  394.572019]  ? __x64_sys_futex+0x53e/0x6a0
[  394.576244]  ? find_held_lock+0x36/0x1c0
[  394.580303]  ? handle_mm_fault+0x42a/0xc70
[  394.584531]  ? lock_downgrade+0x900/0x900
[  394.588678]  ? check_preemption_disabled+0x48/0x280
[  394.593696]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  394.598615]  ? kasan_check_read+0x11/0x20
[  394.602750]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.608019]  ? rcu_softirq_qs+0x20/0x20
[  394.611990]  ? trace_hardirqs_off_caller+0x310/0x310
[  394.617088]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.622623]  ? check_preemption_disabled+0x48/0x280
[  394.627640]  handle_mm_fault+0x54f/0xc70
[  394.631694]  ? __handle_mm_fault+0x5be0/0x5be0
[  394.636273]  ? find_vma+0x34/0x190
[  394.639815]  __do_page_fault+0x5e8/0xe60
[  394.643871]  ? trace_hardirqs_off+0xb8/0x310
[  394.648279]  do_page_fault+0xf2/0x7e0
[  394.652077]  ? vmalloc_sync_all+0x30/0x30
[  394.656220]  ? error_entry+0x70/0xd0
[  394.660590]  ? trace_hardirqs_off_caller+0xbb/0x310
[  394.665602]  ? trace_hardirqs_on_caller+0xc0/0x310
[  394.670529]  ? syscall_return_slowpath+0x5e0/0x5e0
[  394.675464]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  394.680297]  ? trace_hardirqs_on_caller+0x310/0x310
[  394.685305]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  394.690757]  ? prepare_exit_to_usermode+0x291/0x3b0
[  394.695764]  ? page_fault+0x8/0x30
[  394.699298]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  394.704134]  ? page_fault+0x8/0x30
[  394.707666]  page_fault+0x1e/0x30
[  394.711113] RIP: 0033:0x45ddf3
[  394.714326] Code: Bad RIP value.
[  394.717694] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  394.723047] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  394.730303] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  394.737560] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  394.744821] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  394.752080] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  394.760118] warn_alloc_show_mem: 1 callbacks suppressed
[  394.760126] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  394.760128] Mem-Info:
[  394.760157] active_anon:54141 inactive_anon:292 isolated_anon:0
[  394.760157]  active_file:12 inactive_file:13 isolated_file:0
[  394.760157]  unevictable:0 dirty:0 writeback:0 unstable:0
[  394.760157]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  394.760157]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  394.760157]  free:13705 free_pcp:178 free_cma:0
[  394.765490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  394.772235] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  394.774624] Call Trace:
[  394.807475] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  394.816821]  dump_stack+0x244/0x39d
[  394.844715] lowmem_reserve[]: 0 2818 6321 6321
[  394.847289]  ? dump_stack_print_info.cold.1+0x20/0x20
[  394.874312] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  394.877938]  warn_alloc.cold.116+0xb7/0x1bd
[  394.882479] lowmem_reserve[]: 0 0 3503 3503
[  394.887657]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  394.915121] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  394.919431]  ? lock_downgrade+0x900/0x900
[  394.923720] lowmem_reserve[]: 0 0 0 0
[  394.928551]  ? trace_hardirqs_off+0xb8/0x310
[  394.957489] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  394.962007]  ? trace_hardirqs_off+0xb8/0x310
[  394.965775] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  394.970176]  __alloc_pages_slowpath+0x26e8/0x2e10
[  394.983666] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  394.988087]  ? warn_alloc+0x120/0x120
[  395.003303] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  395.008135]  ? print_usage_bug+0xc0/0xc0
[  395.022325] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  395.026117]  ? warn_alloc+0x120/0x120
[  395.034921] 366 total pagecache pages
[  395.038963]  ? warn_alloc+0x120/0x120
[  395.047529] 0 pages in swap cache
[  395.051305]  ? print_usage_bug+0xc0/0xc0
[  395.055082] Swap cache stats: add 0, delete 0, find 0/0
[  395.059177]  ? print_usage_bug+0xc0/0xc0
[  395.062599] Free swap  = 0kB
[  395.066643]  ? __lock_acquire+0x62f/0x4c20
[  395.071980] Total swap = 0kB
[  395.076039]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.079027] 1965979 pages RAM
[  395.083248]  ? should_fail+0x22d/0xd01
[  395.086234] 0 pages HighMem/MovableOnly
[  395.091770]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  395.094842] 342854 pages reserved
[  395.098711]  ? __lock_acquire+0x62f/0x4c20
[  395.102664] 0 pages cma reserved
[  395.107747]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  395.111313] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  395.115380]  ? __lock_acquire+0x62f/0x4c20
[  395.118714] syz-fuzzer cpuset=/ mems_allowed=0
[  395.123789]  ? should_fail+0x22d/0xd01
[  395.123803]  ? find_held_lock+0x36/0x1c0
[  395.150685]  ? mark_held_locks+0x130/0x130
[  395.154910]  ? mark_held_locks+0x130/0x130
[  395.159404]  ? zap_class+0x640/0x640
[  395.163113]  ? mark_held_locks+0xc7/0x130
[  395.167259]  ? do_raw_spin_unlock+0xa7/0x330
[  395.171661]  ? zap_class+0x640/0x640
[  395.175366]  ? print_usage_bug+0xc0/0xc0
[  395.179421]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.184948]  ? check_preemption_disabled+0x48/0x280
[  395.189967]  ? __lock_is_held+0xb5/0x140
[  395.194029]  __alloc_pages_nodemask+0xa80/0xde0
[  395.198692]  ? zap_class+0x640/0x640
[  395.202399]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  395.207415]  ? find_held_lock+0x36/0x1c0
[  395.211475]  ? ____cache_alloc_node+0x1c7/0x1e0
[  395.216137]  ? lock_downgrade+0x900/0x900
[  395.220282]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.225827]  cache_grow_begin+0xa5/0x8c0
[  395.229894]  ? do_raw_spin_unlock+0xa7/0x330
[  395.234296]  fallback_alloc+0x204/0x2e0
[  395.238261]  ____cache_alloc_node+0x1c7/0x1e0
[  395.242750]  kmem_cache_alloc_node+0xe3/0x730
[  395.247240]  ? ipv6_get_ifaddr+0x42e/0x620
[  395.251474]  __alloc_skb+0x119/0x770
[  395.255179]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.260713]  ? netdev_alloc_frag+0x1f0/0x1f0
[  395.265113]  ? lock_downgrade+0x900/0x900
[  395.269257]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.274786]  ? refcount_sub_and_test_checked+0x203/0x310
[  395.280230]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  395.285671]  ? addrconf_rs_timer+0x690/0x690
[  395.290085]  ndisc_alloc_skb+0x144/0x340
[  395.294141]  ndisc_send_rs+0x331/0x6e0
[  395.298113]  addrconf_rs_timer+0x314/0x690
[  395.302338]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.306580]  call_timer_fn+0x272/0x920
[  395.310459]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.314687]  ? process_timeout+0x40/0x40
[  395.318752]  ? __run_timers+0x7da/0xc70
[  395.322714]  ? _raw_spin_unlock_irq+0x27/0x80
[  395.327198]  ? _raw_spin_unlock_irq+0x27/0x80
[  395.331685]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.335914]  ? lockdep_hardirqs_on+0x296/0x5b0
[  395.340491]  ? trace_hardirqs_on+0xbd/0x310
[  395.344804]  ? kasan_check_read+0x11/0x20
[  395.348946]  ? __run_timers+0x7da/0xc70
[  395.352912]  ? trace_hardirqs_off_caller+0x310/0x310
[  395.358253]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.362480]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.366703]  __run_timers+0x7e5/0xc70
[  395.370506]  ? timer_fixup_init+0x70/0x70
[  395.374654]  ? _raw_spin_unlock_irq+0x27/0x80
[  395.379136]  ? _raw_spin_unlock_irq+0x27/0x80
[  395.383641]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  395.388217]  ? trace_hardirqs_on+0xbd/0x310
[  395.392559]  ? kasan_check_read+0x11/0x20
[  395.396721]  ? finish_task_switch+0x1f4/0x910
[  395.401211]  ? trace_hardirqs_off_caller+0x310/0x310
[  395.406304]  ? compat_start_thread+0x80/0x80
[  395.410719]  ? pvclock_read_flags+0x160/0x160
[  395.415202]  ? __switch_to_asm+0x34/0x70
[  395.419257]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.424785]  ? check_preemption_disabled+0x48/0x280
[  395.429794]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  395.435329]  ? rcu_pm_notify+0xc0/0xc0
[  395.439207]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.444733]  ? check_preemption_disabled+0x48/0x280
[  395.449739]  run_timer_softirq+0x52/0xb0
[  395.453792]  ? rcu_read_lock_sched_held+0x14f/0x180
[  395.459141]  __do_softirq+0x308/0xb7e
[  395.462936]  ? trace_hardirqs_on_caller+0xc0/0x310
[  395.467969]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  395.473065]  ? trace_hardirqs_on+0x310/0x310
[  395.477491]  ? schedule+0x108/0x460
[  395.481127]  ? trace_hardirqs_off+0xb8/0x310
[  395.485528]  ? smpboot_thread_fn+0x68b/0xa00
[  395.489930]  ? trace_hardirqs_on+0x310/0x310
[  395.494334]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.499861]  ? check_preemption_disabled+0x48/0x280
[  395.504872]  ? takeover_tasklets+0xa90/0xa90
[  395.509270]  run_ksoftirqd+0x5e/0x100
[  395.513063]  smpboot_thread_fn+0x68b/0xa00
[  395.517309]  ? sort_range+0x30/0x30
[  395.520929]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  395.526021]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.531556]  ? __kthread_parkme+0xfb/0x1a0
[  395.535786]  ? sort_range+0x30/0x30
[  395.539493]  kthread+0x35a/0x440
[  395.542860]  ? kthread_stop+0x900/0x900
[  395.546822]  ret_from_fork+0x3a/0x50
[  395.550552] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  395.550628] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  395.557486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  395.557491] Call Trace:
[  395.557497]  <IRQ>
[  395.557514]  dump_stack+0x244/0x39d
[  395.557539]  ? dump_stack_print_info.cold.1+0x20/0x20
[  395.564421] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  395.573686]  warn_alloc.cold.116+0xb7/0x1bd
[  395.576230] ksoftirqd/0 cpuset=/ mems_allowed=0
[  395.578362]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  395.611179]  ? lock_downgrade+0x900/0x900
[  395.615327]  ? trace_hardirqs_off+0xb8/0x310
[  395.619735]  ? trace_hardirqs_off+0xb8/0x310
[  395.624144]  __alloc_pages_slowpath+0x26e8/0x2e10
[  395.629003]  ? warn_alloc+0x120/0x120
[  395.632801]  ? warn_alloc+0x120/0x120
[  395.636596]  ? warn_alloc+0x120/0x120
[  395.640388]  ? __lock_is_held+0xb5/0x140
[  395.644445]  ? print_usage_bug+0xc0/0xc0
[  395.648501]  ? print_usage_bug+0xc0/0xc0
[  395.652560]  ? print_usage_bug+0xc0/0xc0
[  395.656617]  ? __lock_acquire+0x62f/0x4c20
[  395.661782]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.667311]  ? should_fail+0x22d/0xd01
[  395.671191]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  395.676285]  ? __lock_acquire+0x62f/0x4c20
[  395.680532]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  395.685642]  ? should_fail+0x22d/0xd01
[  395.689553]  ? mark_held_locks+0x130/0x130
[  395.693782]  ? mark_held_locks+0x130/0x130
[  395.698010]  ? print_usage_bug+0xc0/0xc0
[  395.702069]  ? find_held_lock+0x36/0x1c0
[  395.706123]  ? zap_class+0x640/0x640
[  395.709830]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.715372]  ? check_preemption_disabled+0x48/0x280
[  395.720382]  ? __lock_is_held+0xb5/0x140
[  395.724547]  __alloc_pages_nodemask+0xa80/0xde0
[  395.729208]  ? zap_class+0x640/0x640
[  395.732921]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  395.737947]  ? find_held_lock+0x36/0x1c0
[  395.742004]  ? ____cache_alloc_node+0x1c7/0x1e0
[  395.746683]  ? lock_downgrade+0x900/0x900
[  395.750833]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.756362]  cache_grow_begin+0xa5/0x8c0
[  395.760872]  ? do_raw_spin_unlock+0xa7/0x330
[  395.765500]  fallback_alloc+0x204/0x2e0
[  395.769477]  ____cache_alloc_node+0x1c7/0x1e0
[  395.773976]  kmem_cache_alloc_node+0xe3/0x730
[  395.778464]  ? mark_held_locks+0xc7/0x130
[  395.782614]  __alloc_skb+0x119/0x770
[  395.786418]  ? netdev_alloc_frag+0x1f0/0x1f0
[  395.790823]  ? do_raw_spin_trylock+0x270/0x270
[  395.795398]  ? kmem_cache_alloc_trace+0x353/0x750
[  395.800232]  ? queue_work_on+0x12c/0x1e0
[  395.804293]  ? switchdev_port_obj_del+0xdc/0x440
[  395.809049]  ? switchdev_trans_item_enqueue+0x260/0x260
[  395.814403]  ? clockevents_program_event+0x158/0x370
[  395.819596]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  395.824608]  __br_mdb_notify+0x4ff/0x15d0
[  395.828763]  ? __br_mdb_add+0x7f0/0x7f0
[  395.832731]  ? kvm_clock_read+0x18/0x30
[  395.836695]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  395.841703]  ? ktime_get+0x2c1/0x400
[  395.845408]  ? check_preemption_disabled+0x48/0x280
[  395.850417]  ? br_multicast_group_expired+0x96/0x610
[  395.855514]  ? rcu_softirq_qs+0x20/0x20
[  395.859983]  br_mdb_notify+0x310/0x410
[  395.863866]  ? br_mdb_dump+0x27b0/0x27b0
[  395.867923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.873460]  br_multicast_group_expired+0x1bc/0x610
[  395.878474]  ? br_mdb_free+0x80/0x80
[  395.882199]  call_timer_fn+0x272/0x920
[  395.886078]  ? br_mdb_free+0x80/0x80
[  395.889782]  ? process_timeout+0x40/0x40
[  395.893836]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  395.899292]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  395.904050]  ? retint_kernel+0x2d/0x2d
[  395.907926]  ? br_mdb_free+0x80/0x80
[  395.911642]  ? br_mdb_free+0x80/0x80
[  395.915342]  __run_timers+0x7e5/0xc70
[  395.919141]  ? timer_fixup_init+0x70/0x70
[  395.923280]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  395.928287]  ? zap_class+0x640/0x640
[  395.932463]  ? print_usage_bug+0xc0/0xc0
[  395.936525]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  395.941709]  ? find_held_lock+0x36/0x1c0
[  395.945764]  ? zap_class+0x640/0x640
[  395.949575]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.955106]  ? check_preemption_disabled+0x48/0x280
[  395.960896]  ? __lock_is_held+0xb5/0x140
[  395.964947]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.970485]  ? check_preemption_disabled+0x48/0x280
[  395.975514]  run_timer_softirq+0x52/0xb0
[  395.979572]  ? rcu_read_lock_sched_held+0x14f/0x180
[  395.984586]  __do_softirq+0x308/0xb7e
[  395.988383]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  395.992872]  ? lock_downgrade+0x900/0x900
[  395.997045]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  396.002157]  ? pvclock_read_flags+0x160/0x160
[  396.006663]  ? lapic_next_event+0x5a/0x90
[  396.010822]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.016359]  ? kvm_clock_read+0x18/0x30
[  396.020326]  ? kvm_sched_clock_read+0x9/0x20
[  396.024723]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.030247]  ? check_preemption_disabled+0x48/0x280
[  396.035264]  irq_exit+0x17f/0x1c0
[  396.038711]  smp_apic_timer_interrupt+0x1cb/0x760
[  396.043547]  ? smp_reschedule_interrupt+0x109/0x650
[  396.048555]  ? smp_call_function_single_interrupt+0x650/0x650
[  396.054426]  ? interrupt_entry+0xb5/0xc0
[  396.058934]  ? trace_hardirqs_off_caller+0xbb/0x310
[  396.063935]  ? trace_hardirqs_off_caller+0xbb/0x310
[  396.068943]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.073769]  ? trace_hardirqs_on_caller+0x310/0x310
[  396.078778]  ? trace_hardirqs_on_caller+0x310/0x310
[  396.083781]  ? task_prio+0x50/0x50
[  396.087328]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.092853]  ? check_preemption_disabled+0x48/0x280
[  396.097864]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.102706]  apic_timer_interrupt+0xf/0x20
[  396.106940]  </IRQ>
[  396.109265] RIP: 0010:dump_stack+0x358/0x39d
[  396.113660] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  396.132565] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  396.140265] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  396.147547] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  396.154808] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  396.162552] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  396.169814] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  396.177087]  ? dump_stack+0x34f/0x39d
[  396.180894]  ? dump_stack_print_info.cold.1+0x20/0x20
[  396.186090]  ? mark_held_locks+0x130/0x130
[  396.190318]  ? mark_held_locks+0x130/0x130
[  396.194553]  dump_header+0x27b/0xf72
[  396.198267]  ? pagefault_out_of_memory+0x197/0x197
[  396.203195]  ? __lock_acquire+0x62f/0x4c20
[  396.207423]  ? percpu_ref_get_many+0x240/0x240
[  396.212003]  ? print_usage_bug+0xc0/0xc0
[  396.216058]  ? zap_class+0x640/0x640
[  396.219767]  ? print_usage_bug+0xc0/0xc0
[  396.223820]  ? print_usage_bug+0xc0/0xc0
[  396.227875]  ? zap_class+0x640/0x640
[  396.231590]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.237138]  ? find_held_lock+0x36/0x1c0
[  396.241199]  ? mark_held_locks+0xc7/0x130
[  396.245343]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  396.250432]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  396.255528]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  396.261038]  ? trace_hardirqs_on+0xbd/0x310
[  396.265354]  ? kasan_check_read+0x11/0x20
[  396.269521]  ? ___ratelimit+0x3b4/0x672
[  396.273499]  ? trace_hardirqs_off_caller+0x310/0x310
[  396.278596]  ? trace_hardirqs_on+0x310/0x310
[  396.282998]  ? lock_downgrade+0x900/0x900
[  396.287140]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  396.292233]  ? ___ratelimit+0x3b9/0x672
[  396.296200]  ? idr_get_free+0xf70/0xf70
[  396.300162]  ? find_held_lock+0x36/0x1c0
[  396.304221]  oom_kill_process.cold.27+0x10/0x903
[  396.308968]  ? zap_class+0x640/0x640
[  396.312675]  ? check_preemption_disabled+0x48/0x280
[  396.317682]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  396.322617]  ? kasan_check_read+0x11/0x20
[  396.326760]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.332029]  ? oom_evaluate_task+0x540/0x540
[  396.336436]  ? find_held_lock+0x36/0x1c0
[  396.340506]  ? out_of_memory+0x974/0x1430
[  396.344658]  ? lock_downgrade+0x900/0x900
[  396.348797]  ? check_preemption_disabled+0x48/0x280
[  396.353806]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  396.358994]  ? kasan_check_read+0x11/0x20
[  396.363136]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.368407]  ? rcu_softirq_qs+0x20/0x20
[  396.372378]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.377903]  ? oom_evaluate_task+0x302/0x540
[  396.382395]  out_of_memory+0xa84/0x1430
[  396.386369]  ? oom_killer_disable+0x3a0/0x3a0
[  396.390888]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  396.395826]  ? __ww_mutex_check_waiters+0x160/0x160
[  396.400842]  __alloc_pages_slowpath+0x2354/0x2e10
[  396.405704]  ? warn_alloc+0x120/0x120
[  396.409496]  ? mark_held_locks+0x130/0x130
[  396.413725]  ? find_get_entry+0xaae/0x1120
[  396.417954]  ? filemap_map_pages+0x1a20/0x1a20
[  396.422533]  ? zap_class+0x640/0x640
[  396.426247]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.431772]  ? check_preemption_disabled+0x48/0x280
[  396.436775]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.442302]  ? should_fail+0x22d/0xd01
[  396.446182]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  396.451280]  ? zap_class+0x640/0x640
[  396.455010]  ? __lock_is_held+0xb5/0x140
[  396.459330]  ? mark_held_locks+0x130/0x130
[  396.463556]  ? lock_release+0xa00/0xa00
[  396.467528]  ? perf_trace_sched_process_exec+0x860/0x860
[  396.472972]  ? xa_load+0x2ba/0x460
[  396.476507]  ? lock_downgrade+0x900/0x900
[  396.480650]  ? __might_sleep+0x95/0x190
[  396.484624]  __alloc_pages_nodemask+0xa80/0xde0
[  396.489291]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  396.494299]  ? __page_cache_alloc+0x191/0x5c0
[  396.498787]  ? xa_load+0x2e1/0x460
[  396.502324]  ? xa_clear_mark+0x40/0x40
[  396.506207]  ? zap_class+0x640/0x640
[  396.509918]  ? zap_class+0x640/0x640
[  396.513738]  ? zap_class+0x640/0x640
[  396.517531]  ? __do_page_cache_readahead+0x663/0x810
[  396.522656]  ? find_held_lock+0x36/0x1c0
[  396.526707]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  396.532238]  alloc_pages_current+0x173/0x350
[  396.536644]  __page_cache_alloc+0x38c/0x5c0
[  396.540954]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  396.545874]  ? kasan_check_read+0x11/0x20
[  396.550014]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.555286]  ? generic_perform_write+0x6a0/0x6a0
[  396.560540]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.566070]  ? check_preemption_disabled+0x48/0x280
[  396.571194]  filemap_fault+0x1595/0x25f0
[  396.575261]  ? __lock_page_or_retry+0xa00/0xa00
[  396.579921]  ? mark_held_locks+0x130/0x130
[  396.584153]  ? filemap_map_pages+0xd6b/0x1a20
[  396.588643]  ? lock_downgrade+0x900/0x900
[  396.592789]  ? check_preemption_disabled+0x48/0x280
[  396.597801]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  396.602723]  ? kasan_check_read+0x11/0x20
[  396.606863]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.612133]  ? rcu_softirq_qs+0x20/0x20
[  396.616110]  ? filemap_map_pages+0xd92/0x1a20
[  396.620608]  ? find_get_entries_tag+0x1400/0x1400
[  396.625443]  ? debug_object_destroy+0x2b0/0x2b0
[  396.630115]  ? lock_pi_update_atomic+0x150/0x150
[  396.634873]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.640416]  ? lock_acquire+0x1ed/0x520
[  396.644385]  ? ext4_filemap_fault+0x7a/0xad
[  396.648707]  ? lock_release+0xa00/0xa00
[  396.652668]  ? perf_trace_sched_process_exec+0x860/0x860
[  396.658630]  ? print_usage_bug+0xc0/0xc0
[  396.662682]  ? print_usage_bug+0xc0/0xc0
[  396.666746]  ? down_read+0x8d/0x120
[  396.670366]  ? ext4_filemap_fault+0x7a/0xad
[  396.674679]  ? __down_interruptible+0x700/0x700
[  396.679347]  ext4_filemap_fault+0x82/0xad
[  396.683489]  __do_fault+0x100/0x6b0
[  396.687112]  ? pmd_devmap_trans_unstable+0x220/0x220
[  396.692208]  ? mark_held_locks+0x130/0x130
[  396.696430]  ? mark_held_locks+0x130/0x130
[  396.700687]  ? do_raw_spin_trylock+0x270/0x270
[  396.705267]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.710800]  __handle_mm_fault+0x3ea0/0x5be0
[  396.715198]  ? perf_trace_lock+0x7a0/0x7a0
[  396.719430]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  396.724274]  ? __switch_to_asm+0x34/0x70
[  396.728326]  ? __switch_to_asm+0x34/0x70
[  396.732385]  ? zap_class+0x640/0x640
[  396.736092]  ? zap_class+0x640/0x640
[  396.739797]  ? __x64_sys_futex+0x53e/0x6a0
[  396.744028]  ? find_held_lock+0x36/0x1c0
[  396.748086]  ? handle_mm_fault+0x42a/0xc70
[  396.752311]  ? lock_downgrade+0x900/0x900
[  396.756455]  ? check_preemption_disabled+0x48/0x280
[  396.761747]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  396.766664]  ? kasan_check_read+0x11/0x20
[  396.770803]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.776067]  ? rcu_softirq_qs+0x20/0x20
[  396.780035]  ? trace_hardirqs_off_caller+0x310/0x310
[  396.785218]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.790748]  ? check_preemption_disabled+0x48/0x280
[  396.795760]  handle_mm_fault+0x54f/0xc70
[  396.799813]  ? __handle_mm_fault+0x5be0/0x5be0
[  396.804390]  ? find_vma+0x34/0x190
[  396.807927]  __do_page_fault+0x5e8/0xe60
[  396.811985]  ? trace_hardirqs_off+0xb8/0x310
[  396.816395]  do_page_fault+0xf2/0x7e0
[  396.820186]  ? vmalloc_sync_all+0x30/0x30
[  396.824418]  ? error_entry+0x70/0xd0
[  396.828150]  ? trace_hardirqs_off_caller+0xbb/0x310
[  396.833152]  ? trace_hardirqs_on_caller+0xc0/0x310
[  396.838069]  ? syscall_return_slowpath+0x5e0/0x5e0
[  396.842986]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.847815]  ? trace_hardirqs_on_caller+0x310/0x310
[  396.852821]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  396.859081]  ? prepare_exit_to_usermode+0x291/0x3b0
[  396.864084]  ? page_fault+0x8/0x30
[  396.867621]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.872459]  ? page_fault+0x8/0x30
[  396.875987]  page_fault+0x1e/0x30
[  396.879436] RIP: 0033:0x45ddf3
[  396.882633] Code: Bad RIP value.
[  396.885985] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  396.891342] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  396.898603] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  396.905898] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  396.913162] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  396.920423] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  396.927709] warn_alloc_show_mem: 1 callbacks suppressed
[  396.927718] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  396.927719] Mem-Info:
[  396.927749] active_anon:54141 inactive_anon:292 isolated_anon:0
[  396.927749]  active_file:12 inactive_file:13 isolated_file:0
[  396.927749]  unevictable:0 dirty:0 writeback:0 unstable:0
[  396.927749]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  396.927749]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  396.927749]  free:13705 free_pcp:178 free_cma:0
[  396.933083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  396.939832] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  396.942217] Call Trace:
[  396.975830] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  396.985173]  dump_stack+0x244/0x39d
[  397.012802] lowmem_reserve[]: 0 2818 6321 6321
[  397.015393]  ? dump_stack_print_info.cold.1+0x20/0x20
[  397.041574] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  397.045210]  warn_alloc.cold.116+0xb7/0x1bd
[  397.049750] lowmem_reserve[]: 0 0 3503 3503
[  397.054929]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  397.083280] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  397.087605]  ? lock_downgrade+0x900/0x900
[  397.091893] lowmem_reserve[]: 0 0 0 0
[  397.096724]  ? trace_hardirqs_off+0xb8/0x310
[  397.125772] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  397.129913]  ? trace_hardirqs_off+0xb8/0x310
[  397.133680] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  397.138083]  __alloc_pages_slowpath+0x26e8/0x2e10
[  397.151564] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  397.155983]  ? warn_alloc+0x120/0x120
[  397.171706] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  397.176528]  ? print_usage_bug+0xc0/0xc0
[  397.190718] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  397.194501]  ? warn_alloc+0x120/0x120
[  397.203303] 366 total pagecache pages
[  397.207347]  ? warn_alloc+0x120/0x120
[  397.215894] 0 pages in swap cache
[  397.219667]  ? print_usage_bug+0xc0/0xc0
[  397.223447] Swap cache stats: add 0, delete 0, find 0/0
[  397.227226]  ? print_usage_bug+0xc0/0xc0
[  397.230649] Free swap  = 0kB
[  397.234694]  ? __lock_acquire+0x62f/0x4c20
[  397.240026] Total swap = 0kB
[  397.244073]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.247058] 1965979 pages RAM
[  397.251285]  ? should_fail+0x22d/0xd01
[  397.254269] 0 pages HighMem/MovableOnly
[  397.260054]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  397.263123] 342854 pages reserved
[  397.263130] 0 pages cma reserved
[  397.267000]  ? __lock_acquire+0x62f/0x4c20
[  397.271076] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  397.276032]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  397.279453] syz-fuzzer cpuset=/ mems_allowed=0
[  397.282802]  ? __lock_acquire+0x62f/0x4c20
[  397.311054]  ? should_fail+0x22d/0xd01
[  397.314940]  ? find_held_lock+0x36/0x1c0
[  397.319013]  ? mark_held_locks+0x130/0x130
[  397.323243]  ? mark_held_locks+0x130/0x130
[  397.327484]  ? zap_class+0x640/0x640
[  397.331193]  ? mark_held_locks+0xc7/0x130
[  397.335329]  ? do_raw_spin_unlock+0xa7/0x330
[  397.339729]  ? zap_class+0x640/0x640
[  397.343436]  ? print_usage_bug+0xc0/0xc0
[  397.347495]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.353032]  ? check_preemption_disabled+0x48/0x280
[  397.358347]  ? __lock_is_held+0xb5/0x140
[  397.362422]  __alloc_pages_nodemask+0xa80/0xde0
[  397.367087]  ? zap_class+0x640/0x640
[  397.370793]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  397.375829]  ? find_held_lock+0x36/0x1c0
[  397.379891]  ? ____cache_alloc_node+0x1c7/0x1e0
[  397.384555]  ? lock_downgrade+0x900/0x900
[  397.388702]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.394233]  cache_grow_begin+0xa5/0x8c0
[  397.398285]  ? do_raw_spin_unlock+0xa7/0x330
[  397.402691]  fallback_alloc+0x204/0x2e0
[  397.406661]  ____cache_alloc_node+0x1c7/0x1e0
[  397.411156]  kmem_cache_alloc_node+0xe3/0x730
[  397.415639]  ? ipv6_get_ifaddr+0x42e/0x620
[  397.419872]  __alloc_skb+0x119/0x770
[  397.423578]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.428848]  ? netdev_alloc_frag+0x1f0/0x1f0
[  397.433251]  ? lock_downgrade+0x900/0x900
[  397.437403]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.442934]  ? refcount_sub_and_test_checked+0x203/0x310
[  397.448383]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  397.453834]  ? addrconf_rs_timer+0x690/0x690
[  397.458626]  ndisc_alloc_skb+0x144/0x340
[  397.462693]  ndisc_send_rs+0x331/0x6e0
[  397.466667]  addrconf_rs_timer+0x314/0x690
[  397.470897]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.475135]  call_timer_fn+0x272/0x920
[  397.479017]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.483247]  ? process_timeout+0x40/0x40
[  397.487309]  ? __run_timers+0x7da/0xc70
[  397.491275]  ? _raw_spin_unlock_irq+0x27/0x80
[  397.495764]  ? _raw_spin_unlock_irq+0x27/0x80
[  397.500253]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.504481]  ? lockdep_hardirqs_on+0x296/0x5b0
[  397.509056]  ? trace_hardirqs_on+0xbd/0x310
[  397.513370]  ? kasan_check_read+0x11/0x20
[  397.517519]  ? __run_timers+0x7da/0xc70
[  397.521503]  ? trace_hardirqs_off_caller+0x310/0x310
[  397.526614]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.530846]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.535085]  __run_timers+0x7e5/0xc70
[  397.538884]  ? timer_fixup_init+0x70/0x70
[  397.543020]  ? _raw_spin_unlock_irq+0x27/0x80
[  397.547523]  ? _raw_spin_unlock_irq+0x27/0x80
[  397.552014]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  397.556603]  ? trace_hardirqs_on+0xbd/0x310
[  397.561254]  ? kasan_check_read+0x11/0x20
[  397.565402]  ? finish_task_switch+0x1f4/0x910
[  397.569890]  ? trace_hardirqs_off_caller+0x310/0x310
[  397.574986]  ? compat_start_thread+0x80/0x80
[  397.579417]  ? pvclock_read_flags+0x160/0x160
[  397.583898]  ? __switch_to_asm+0x34/0x70
[  397.587963]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.593493]  ? check_preemption_disabled+0x48/0x280
[  397.598503]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  397.604032]  ? rcu_pm_notify+0xc0/0xc0
[  397.607912]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.613438]  ? check_preemption_disabled+0x48/0x280
[  397.618446]  run_timer_softirq+0x52/0xb0
[  397.622496]  ? rcu_read_lock_sched_held+0x14f/0x180
[  397.627501]  __do_softirq+0x308/0xb7e
[  397.631299]  ? trace_hardirqs_on_caller+0xc0/0x310
[  397.636225]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  397.641320]  ? trace_hardirqs_on+0x310/0x310
[  397.645730]  ? schedule+0x108/0x460
[  397.649358]  ? trace_hardirqs_off+0xb8/0x310
[  397.653767]  ? smpboot_thread_fn+0x68b/0xa00
[  397.658504]  ? trace_hardirqs_on+0x310/0x310
[  397.662905]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.668437]  ? check_preemption_disabled+0x48/0x280
[  397.673452]  ? takeover_tasklets+0xa90/0xa90
[  397.677852]  run_ksoftirqd+0x5e/0x100
[  397.681644]  smpboot_thread_fn+0x68b/0xa00
[  397.685876]  ? sort_range+0x30/0x30
[  397.689494]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  397.694585]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.700118]  ? __kthread_parkme+0xfb/0x1a0
[  397.704350]  ? sort_range+0x30/0x30
[  397.707984]  kthread+0x35a/0x440
[  397.711344]  ? kthread_stop+0x900/0x900
[  397.715313]  ret_from_fork+0x3a/0x50
[  397.719034] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  397.719102] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  397.725951] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  397.725955] Call Trace:
[  397.725961]  <IRQ>
[  397.725974]  dump_stack+0x244/0x39d
[  397.725991]  ? dump_stack_print_info.cold.1+0x20/0x20
[  397.732564] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  397.741825]  warn_alloc.cold.116+0xb7/0x1bd
[  397.744373] ksoftirqd/0 cpuset=/ mems_allowed=0
[  397.746520]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  397.780368]  ? lock_downgrade+0x900/0x900
[  397.784528]  ? trace_hardirqs_off+0xb8/0x310
[  397.788938]  ? trace_hardirqs_off+0xb8/0x310
[  397.793348]  __alloc_pages_slowpath+0x26e8/0x2e10
[  397.798228]  ? warn_alloc+0x120/0x120
[  397.802023]  ? warn_alloc+0x120/0x120
[  397.805819]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  397.810841]  ? warn_alloc+0x120/0x120
[  397.814638]  ? print_usage_bug+0xc0/0xc0
[  397.818693]  ? print_usage_bug+0xc0/0xc0
[  397.822746]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  397.827936]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.833465]  ? should_fail+0x22d/0xd01
[  397.837352]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  397.842459]  ? __lock_acquire+0x62f/0x4c20
[  397.846687]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  397.851784]  ? should_fail+0x22d/0xd01
[  397.855673]  ? mark_held_locks+0x130/0x130
[  397.860854]  ? mark_held_locks+0x130/0x130
[  397.865083]  ? print_usage_bug+0xc0/0xc0
[  397.869140]  ? find_held_lock+0x36/0x1c0
[  397.873199]  ? zap_class+0x640/0x640
[  397.876924]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.882455]  ? check_preemption_disabled+0x48/0x280
[  397.887476]  ? __lock_is_held+0xb5/0x140
[  397.891536]  __alloc_pages_nodemask+0xa80/0xde0
[  397.896202]  ? zap_class+0x640/0x640
[  397.899913]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  397.904935]  ? find_held_lock+0x36/0x1c0
[  397.908999]  ? ____cache_alloc_node+0x1c7/0x1e0
[  397.913675]  ? lock_downgrade+0x900/0x900
[  397.917822]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.923377]  cache_grow_begin+0xa5/0x8c0
[  397.927434]  ? do_raw_spin_unlock+0xa7/0x330
[  397.932152]  fallback_alloc+0x204/0x2e0
[  397.936128]  ____cache_alloc_node+0x1c7/0x1e0
[  397.940643]  kmem_cache_alloc_node+0xe3/0x730
[  397.945128]  ? mark_held_locks+0xc7/0x130
[  397.949276]  __alloc_skb+0x119/0x770
[  397.952983]  ? netdev_alloc_frag+0x1f0/0x1f0
[  397.957387]  ? do_raw_spin_trylock+0x270/0x270
[  397.962748]  ? kmem_cache_alloc_trace+0x353/0x750
[  397.967581]  ? queue_work_on+0x12c/0x1e0
[  397.971635]  ? switchdev_port_obj_del+0xdc/0x440
[  397.976387]  ? switchdev_trans_item_enqueue+0x260/0x260
[  397.981751]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  397.986763]  __br_mdb_notify+0x4ff/0x15d0
[  397.990913]  ? __br_mdb_add+0x7f0/0x7f0
[  397.994891]  ? zap_class+0x640/0x640
[  397.998607]  ? br_multicast_group_expired+0x96/0x610
[  398.003703]  ? lock_downgrade+0x900/0x900
[  398.007847]  br_mdb_notify+0x310/0x410
[  398.011732]  ? br_mdb_dump+0x27b0/0x27b0
[  398.015786]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.021324]  br_multicast_group_expired+0x1bc/0x610
[  398.026339]  ? br_mdb_free+0x80/0x80
[  398.030064]  call_timer_fn+0x272/0x920
[  398.033938]  ? br_mdb_free+0x80/0x80
[  398.037654]  ? process_timeout+0x40/0x40
[  398.041720]  ? mark_held_locks+0xc7/0x130
[  398.045865]  ? _raw_spin_unlock_irq+0x27/0x80
[  398.050366]  ? _raw_spin_unlock_irq+0x27/0x80
[  398.054854]  ? br_mdb_free+0x80/0x80
[  398.059183]  ? lockdep_hardirqs_on+0x296/0x5b0
[  398.063758]  ? trace_hardirqs_on+0xbd/0x310
[  398.068091]  ? kasan_check_read+0x11/0x20
[  398.072233]  ? __run_timers+0x7da/0xc70
[  398.076207]  ? trace_hardirqs_off_caller+0x310/0x310
[  398.081306]  ? br_mdb_free+0x80/0x80
[  398.085021]  ? br_mdb_free+0x80/0x80
[  398.088722]  __run_timers+0x7e5/0xc70
[  398.092522]  ? timer_fixup_init+0x70/0x70
[  398.096662]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  398.101670]  ? zap_class+0x640/0x640
[  398.105397]  ? print_usage_bug+0xc0/0xc0
[  398.109459]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  398.114655]  ? find_held_lock+0x36/0x1c0
[  398.118711]  ? zap_class+0x640/0x640
[  398.122444]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.127976]  ? check_preemption_disabled+0x48/0x280
[  398.132988]  ? __lock_is_held+0xb5/0x140
[  398.137038]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.142565]  ? check_preemption_disabled+0x48/0x280
[  398.147576]  run_timer_softirq+0x52/0xb0
[  398.151629]  ? rcu_read_lock_sched_held+0x14f/0x180
[  398.156635]  __do_softirq+0x308/0xb7e
[  398.160708]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  398.165197]  ? lock_downgrade+0x900/0x900
[  398.169338]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  398.174445]  ? pvclock_read_flags+0x160/0x160
[  398.178931]  ? lapic_next_event+0x5a/0x90
[  398.183071]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.188606]  ? kvm_clock_read+0x18/0x30
[  398.192585]  ? kvm_sched_clock_read+0x9/0x20
[  398.196989]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.202521]  ? check_preemption_disabled+0x48/0x280
[  398.207537]  irq_exit+0x17f/0x1c0
[  398.210986]  smp_apic_timer_interrupt+0x1cb/0x760
[  398.215817]  ? smp_reschedule_interrupt+0x109/0x650
[  398.220826]  ? smp_call_function_single_interrupt+0x650/0x650
[  398.226702]  ? interrupt_entry+0xb5/0xc0
[  398.230769]  ? trace_hardirqs_off_caller+0xbb/0x310
[  398.235778]  ? trace_hardirqs_off_caller+0xbb/0x310
[  398.240800]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  398.245646]  ? trace_hardirqs_on_caller+0x310/0x310
[  398.250651]  ? trace_hardirqs_on_caller+0x310/0x310
[  398.255663]  ? task_prio+0x50/0x50
[  398.260130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.265662]  ? check_preemption_disabled+0x48/0x280
[  398.270680]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  398.275525]  apic_timer_interrupt+0xf/0x20
[  398.279756]  </IRQ>
[  398.282003] RIP: 0010:dump_stack+0x358/0x39d
[  398.286405] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  398.305531] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  398.313230] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  398.320490] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  398.327753] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  398.335284] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  398.342546] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  398.349819]  ? dump_stack+0x34f/0x39d
[  398.353623]  ? dump_stack_print_info.cold.1+0x20/0x20
[  398.359134]  ? mark_held_locks+0x130/0x130
[  398.363371]  ? mark_held_locks+0x130/0x130
[  398.367607]  dump_header+0x27b/0xf72
[  398.371325]  ? pagefault_out_of_memory+0x197/0x197
[  398.376269]  ? __lock_acquire+0x62f/0x4c20
[  398.380505]  ? percpu_ref_get_many+0x240/0x240
[  398.385085]  ? print_usage_bug+0xc0/0xc0
[  398.389144]  ? zap_class+0x640/0x640
[  398.392857]  ? print_usage_bug+0xc0/0xc0
[  398.396912]  ? print_usage_bug+0xc0/0xc0
[  398.400965]  ? zap_class+0x640/0x640
[  398.404672]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.410219]  ? find_held_lock+0x36/0x1c0
[  398.414282]  ? mark_held_locks+0xc7/0x130
[  398.418425]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  398.423518]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  398.428631]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  398.433210]  ? trace_hardirqs_on+0xbd/0x310
[  398.437522]  ? kasan_check_read+0x11/0x20
[  398.441662]  ? ___ratelimit+0x3b4/0x672
[  398.445631]  ? trace_hardirqs_off_caller+0x310/0x310
[  398.450856]  ? trace_hardirqs_on+0x310/0x310
[  398.455260]  ? lock_downgrade+0x900/0x900
[  398.459904]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  398.464995]  ? ___ratelimit+0x3b9/0x672
[  398.468970]  ? idr_get_free+0xf70/0xf70
[  398.472942]  ? find_held_lock+0x36/0x1c0
[  398.477001]  oom_kill_process.cold.27+0x10/0x903
[  398.481754]  ? zap_class+0x640/0x640
[  398.485465]  ? check_preemption_disabled+0x48/0x280
[  398.490497]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  398.495426]  ? kasan_check_read+0x11/0x20
[  398.499564]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.504835]  ? oom_evaluate_task+0x540/0x540
[  398.509241]  ? find_held_lock+0x36/0x1c0
[  398.513310]  ? out_of_memory+0x974/0x1430
[  398.517453]  ? lock_downgrade+0x900/0x900
[  398.521597]  ? check_preemption_disabled+0x48/0x280
[  398.526615]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  398.531535]  ? kasan_check_read+0x11/0x20
[  398.535672]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.540951]  ? rcu_softirq_qs+0x20/0x20
[  398.544921]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.550465]  ? oom_evaluate_task+0x302/0x540
[  398.554891]  out_of_memory+0xa84/0x1430
[  398.559677]  ? oom_killer_disable+0x3a0/0x3a0
[  398.564161]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  398.569101]  ? __ww_mutex_check_waiters+0x160/0x160
[  398.574116]  __alloc_pages_slowpath+0x2354/0x2e10
[  398.578972]  ? warn_alloc+0x120/0x120
[  398.582763]  ? mark_held_locks+0x130/0x130
[  398.586989]  ? find_get_entry+0xaae/0x1120
[  398.591224]  ? filemap_map_pages+0x1a20/0x1a20
[  398.595801]  ? zap_class+0x640/0x640
[  398.599516]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.605051]  ? check_preemption_disabled+0x48/0x280
[  398.610077]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.615621]  ? should_fail+0x22d/0xd01
[  398.619505]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  398.624601]  ? zap_class+0x640/0x640
[  398.628337]  ? __lock_is_held+0xb5/0x140
[  398.632398]  ? mark_held_locks+0x130/0x130
[  398.636625]  ? lock_release+0xa00/0xa00
[  398.640596]  ? perf_trace_sched_process_exec+0x860/0x860
[  398.646038]  ? xa_load+0x2ba/0x460
[  398.649574]  ? lock_downgrade+0x900/0x900
[  398.653726]  ? __might_sleep+0x95/0x190
[  398.658138]  __alloc_pages_nodemask+0xa80/0xde0
[  398.662806]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  398.667821]  ? __page_cache_alloc+0x191/0x5c0
[  398.672311]  ? xa_load+0x2e1/0x460
[  398.675857]  ? xa_clear_mark+0x40/0x40
[  398.679752]  ? zap_class+0x640/0x640
[  398.683482]  ? zap_class+0x640/0x640
[  398.687187]  ? zap_class+0x640/0x640
[  398.690889]  ? __do_page_cache_readahead+0x663/0x810
[  398.695989]  ? find_held_lock+0x36/0x1c0
[  398.700051]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  398.705586]  alloc_pages_current+0x173/0x350
[  398.709993]  __page_cache_alloc+0x38c/0x5c0
[  398.714308]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  398.719240]  ? kasan_check_read+0x11/0x20
[  398.723380]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.728648]  ? generic_perform_write+0x6a0/0x6a0
[  398.733397]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.738931]  ? check_preemption_disabled+0x48/0x280
[  398.743941]  filemap_fault+0x1595/0x25f0
[  398.748004]  ? __lock_page_or_retry+0xa00/0xa00
[  398.752664]  ? mark_held_locks+0x130/0x130
[  398.756903]  ? filemap_map_pages+0xd6b/0x1a20
[  398.762077]  ? lock_downgrade+0x900/0x900
[  398.766237]  ? check_preemption_disabled+0x48/0x280
[  398.771253]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  398.776174]  ? kasan_check_read+0x11/0x20
[  398.780335]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.785613]  ? rcu_softirq_qs+0x20/0x20
[  398.789594]  ? filemap_map_pages+0xd92/0x1a20
[  398.794096]  ? find_get_entries_tag+0x1400/0x1400
[  398.798932]  ? debug_object_destroy+0x2b0/0x2b0
[  398.803596]  ? lock_pi_update_atomic+0x150/0x150
[  398.808343]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.813888]  ? lock_acquire+0x1ed/0x520
[  398.817856]  ? ext4_filemap_fault+0x7a/0xad
[  398.822173]  ? lock_release+0xa00/0xa00
[  398.826133]  ? perf_trace_sched_process_exec+0x860/0x860
[  398.831577]  ? print_usage_bug+0xc0/0xc0
[  398.835635]  ? print_usage_bug+0xc0/0xc0
[  398.839696]  ? down_read+0x8d/0x120
[  398.843323]  ? ext4_filemap_fault+0x7a/0xad
[  398.847637]  ? __down_interruptible+0x700/0x700
[  398.852313]  ext4_filemap_fault+0x82/0xad
[  398.856451]  __do_fault+0x100/0x6b0
[  398.860877]  ? pmd_devmap_trans_unstable+0x220/0x220
[  398.865974]  ? mark_held_locks+0x130/0x130
[  398.870326]  ? mark_held_locks+0x130/0x130
[  398.874564]  ? do_raw_spin_trylock+0x270/0x270
[  398.879149]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.884683]  __handle_mm_fault+0x3ea0/0x5be0
[  398.889079]  ? perf_trace_lock+0x7a0/0x7a0
[  398.893341]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  398.898185]  ? __switch_to_asm+0x34/0x70
[  398.902237]  ? __switch_to_asm+0x34/0x70
[  398.906334]  ? zap_class+0x640/0x640
[  398.910041]  ? zap_class+0x640/0x640
[  398.913745]  ? __x64_sys_futex+0x53e/0x6a0
[  398.917980]  ? find_held_lock+0x36/0x1c0
[  398.922048]  ? handle_mm_fault+0x42a/0xc70
[  398.926278]  ? lock_downgrade+0x900/0x900
[  398.930424]  ? check_preemption_disabled+0x48/0x280
[  398.935436]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  398.940359]  ? kasan_check_read+0x11/0x20
[  398.944499]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.949770]  ? rcu_softirq_qs+0x20/0x20
[  398.953754]  ? trace_hardirqs_off_caller+0x310/0x310
[  398.959652]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.965182]  ? check_preemption_disabled+0x48/0x280
[  398.970194]  handle_mm_fault+0x54f/0xc70
[  398.974264]  ? __handle_mm_fault+0x5be0/0x5be0
[  398.978849]  ? find_vma+0x34/0x190
[  398.982406]  __do_page_fault+0x5e8/0xe60
[  398.986461]  ? trace_hardirqs_off+0xb8/0x310
[  398.990874]  do_page_fault+0xf2/0x7e0
[  398.994667]  ? vmalloc_sync_all+0x30/0x30
[  398.998831]  ? error_entry+0x70/0xd0
[  399.002542]  ? trace_hardirqs_off_caller+0xbb/0x310
[  399.007549]  ? trace_hardirqs_on_caller+0xc0/0x310
[  399.012469]  ? syscall_return_slowpath+0x5e0/0x5e0
[  399.017390]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  399.022224]  ? trace_hardirqs_on_caller+0x310/0x310
[  399.027233]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  399.032684]  ? prepare_exit_to_usermode+0x291/0x3b0
[  399.037695]  ? page_fault+0x8/0x30
[  399.041231]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  399.046069]  ? page_fault+0x8/0x30
[  399.049603]  page_fault+0x1e/0x30
[  399.053042] RIP: 0033:0x45ddf3
[  399.056237] Code: Bad RIP value.
[  399.060112] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  399.065465] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  399.072725] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  399.079985] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  399.087246] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  399.094505] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  399.101786] warn_alloc_show_mem: 1 callbacks suppressed
[  399.101795] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  399.101796] Mem-Info:
[  399.101831] active_anon:54141 inactive_anon:292 isolated_anon:0
[  399.101831]  active_file:12 inactive_file:13 isolated_file:0
[  399.101831]  unevictable:0 dirty:0 writeback:0 unstable:0
[  399.101831]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  399.101831]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  399.101831]  free:13705 free_pcp:178 free_cma:0
[  399.107154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  399.113917] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  399.116312] Call Trace:
[  399.149167] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  399.158828]  dump_stack+0x244/0x39d
[  399.186461] lowmem_reserve[]: 0 2818 6321 6321
[  399.189043]  ? dump_stack_print_info.cold.1+0x20/0x20
[  399.215114] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  399.218754]  warn_alloc.cold.116+0xb7/0x1bd
[  399.223297] lowmem_reserve[]: 0 0 3503 3503
[  399.228481]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  399.255953] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  399.260627]  ? lock_downgrade+0x900/0x900
[  399.264916] lowmem_reserve[]: 0 0 0 0
[  399.269753]  ? trace_hardirqs_off+0xb8/0x310
[  399.298688] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  399.302829]  ? trace_hardirqs_off+0xb8/0x310
[  399.306598] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  399.310998]  __alloc_pages_slowpath+0x26e8/0x2e10
[  399.324483] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  399.328911]  ? warn_alloc+0x120/0x120
[  399.344121] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  399.348943]  ? warn_alloc+0x120/0x120
[  399.363876] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  399.367656]  ? warn_alloc+0x120/0x120
[  399.376456] 366 total pagecache pages
[  399.380240]  ? print_usage_bug+0xc0/0xc0
[  399.388798] 0 pages in swap cache
[  399.392572]  ? __alloc_pages_slowpath+0x26e8/0x2e10
[  399.396348] Swap cache stats: add 0, delete 0, find 0/0
[  399.400386]  ? print_usage_bug+0xc0/0xc0
[  399.403805] Free swap  = 0kB
[  399.408803]  ? print_usage_bug+0xc0/0xc0
[  399.414135] Total swap = 0kB
[  399.418276]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.421262] 1965979 pages RAM
[  399.425318]  ? should_fail+0x22d/0xd01
[  399.428305] 0 pages HighMem/MovableOnly
[  399.433823]  ? mark_held_locks+0x130/0x130
[  399.436919] 342854 pages reserved
[  399.440809]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  399.444753] 0 pages cma reserved
[  399.448973]  ? __lock_acquire+0x62f/0x4c20
[  399.452651] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  399.457797]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  399.457812]  ? __lock_acquire+0x62f/0x4c20
[  399.461154] syz-fuzzer cpuset=/ mems_allowed=0
[  399.465387]  ? should_fail+0x22d/0xd01
[  399.493317]  ? print_usage_bug+0xc0/0xc0
[  399.497381]  ? mark_held_locks+0x130/0x130
[  399.501611]  ? mark_held_locks+0x130/0x130
[  399.505852]  ? zap_class+0x640/0x640
[  399.509560]  ? ret_from_fork+0x3a/0x50
[  399.513440]  ? zap_class+0x640/0x640
[  399.517151]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.522681]  ? check_preemption_disabled+0x48/0x280
[  399.527699]  ? __lock_is_held+0xb5/0x140
[  399.531759]  __alloc_pages_nodemask+0xa80/0xde0
[  399.536420]  ? zap_class+0x640/0x640
[  399.540132]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  399.545152]  ? find_held_lock+0x36/0x1c0
[  399.549214]  ? ____cache_alloc_node+0x1c7/0x1e0
[  399.553879]  ? lock_downgrade+0x900/0x900
[  399.558364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.563918]  cache_grow_begin+0xa5/0x8c0
[  399.567971]  ? do_raw_spin_unlock+0xa7/0x330
[  399.572374]  fallback_alloc+0x204/0x2e0
[  399.576339]  ____cache_alloc_node+0x1c7/0x1e0
[  399.580826]  kmem_cache_alloc_node+0xe3/0x730
[  399.585317]  ? mark_held_locks+0xc7/0x130
[  399.589468]  __alloc_skb+0x119/0x770
[  399.593179]  ? netdev_alloc_frag+0x1f0/0x1f0
[  399.597577]  ? do_raw_spin_trylock+0x270/0x270
[  399.602151]  ? kmem_cache_alloc_trace+0x353/0x750
[  399.606993]  ? queue_work_on+0x12c/0x1e0
[  399.611056]  ? switchdev_port_obj_del+0xdc/0x440
[  399.615838]  ? switchdev_trans_item_enqueue+0x260/0x260
[  399.621204]  ? mod_timer+0x631/0x1560
[  399.624994]  ? wake_up_klogd+0x180/0x180
[  399.629058]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  399.634074]  __br_mdb_notify+0x4ff/0x15d0
[  399.638225]  ? __br_mdb_add+0x7f0/0x7f0
[  399.642199]  ? trace_hardirqs_off_caller+0x310/0x310
[  399.647304]  ? zap_class+0x640/0x640
[  399.651020]  ? br_multicast_group_expired+0x96/0x610
[  399.656142]  br_mdb_notify+0x310/0x410
[  399.660349]  ? br_mdb_dump+0x27b0/0x27b0
[  399.664410]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.669959]  br_multicast_group_expired+0x1bc/0x610
[  399.674983]  ? br_mdb_free+0x80/0x80
[  399.678693]  call_timer_fn+0x272/0x920
[  399.682579]  ? br_mdb_free+0x80/0x80
[  399.686290]  ? process_timeout+0x40/0x40
[  399.690349]  ? __run_timers+0x7da/0xc70
[  399.694321]  ? _raw_spin_unlock_irq+0x27/0x80
[  399.698900]  ? _raw_spin_unlock_irq+0x27/0x80
[  399.703385]  ? br_mdb_free+0x80/0x80
[  399.707085]  ? lockdep_hardirqs_on+0x296/0x5b0
[  399.711661]  ? trace_hardirqs_on+0xbd/0x310
[  399.715975]  ? kasan_check_read+0x11/0x20
[  399.720111]  ? __run_timers+0x7da/0xc70
[  399.724078]  ? trace_hardirqs_off_caller+0x310/0x310
[  399.729178]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.733407]  ? br_mdb_free+0x80/0x80
[  399.737113]  __run_timers+0x7e5/0xc70
[  399.740915]  ? timer_fixup_init+0x70/0x70
[  399.745051]  ? _raw_spin_unlock_irq+0x27/0x80
[  399.749531]  ? _raw_spin_unlock_irq+0x27/0x80
[  399.754018]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  399.758824]  ? trace_hardirqs_on+0xbd/0x310
[  399.763652]  ? kasan_check_read+0x11/0x20
[  399.767812]  ? finish_task_switch+0x1f4/0x910
[  399.772302]  ? trace_hardirqs_off_caller+0x310/0x310
[  399.777394]  ? compat_start_thread+0x80/0x80
[  399.781816]  ? pvclock_read_flags+0x160/0x160
[  399.786301]  ? __switch_to_asm+0x34/0x70
[  399.790366]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.795902]  ? check_preemption_disabled+0x48/0x280
[  399.800929]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  399.806458]  ? rcu_pm_notify+0xc0/0xc0
[  399.810341]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.815876]  ? check_preemption_disabled+0x48/0x280
[  399.820888]  run_timer_softirq+0x52/0xb0
[  399.824942]  ? rcu_read_lock_sched_held+0x14f/0x180
[  399.829947]  __do_softirq+0x308/0xb7e
[  399.833764]  ? trace_hardirqs_on_caller+0xc0/0x310
[  399.838689]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  399.843786]  ? trace_hardirqs_on+0x310/0x310
[  399.848192]  ? schedule+0x108/0x460
[  399.851818]  ? trace_hardirqs_off+0xb8/0x310
[  399.856219]  ? smpboot_thread_fn+0x68b/0xa00
[  399.860942]  ? trace_hardirqs_on+0x310/0x310
[  399.865343]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.870874]  ? check_preemption_disabled+0x48/0x280
[  399.875882]  ? takeover_tasklets+0xa90/0xa90
[  399.880285]  run_ksoftirqd+0x5e/0x100
[  399.884081]  smpboot_thread_fn+0x68b/0xa00
[  399.888309]  ? sort_range+0x30/0x30
[  399.891926]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  399.897021]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.902552]  ? __kthread_parkme+0xfb/0x1a0
[  399.906779]  ? sort_range+0x30/0x30
[  399.910397]  kthread+0x35a/0x440
[  399.913760]  ? kthread_stop+0x900/0x900
[  399.917728]  ret_from_fork+0x3a/0x50
[  399.921451] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  399.921581] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  399.928805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  399.939102] ksoftirqd/0 cpuset=/ mems_allowed=0
[  399.948433] Call Trace:
[  399.955636]  <IRQ>
[  399.958698]  dump_stack+0x244/0x39d
[  399.962321]  ? dump_stack_print_info.cold.1+0x20/0x20
[  399.967511]  warn_alloc.cold.116+0xb7/0x1bd
[  399.971826]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  399.976666]  ? lock_downgrade+0x900/0x900
[  399.980810]  ? trace_hardirqs_off+0xb8/0x310
[  399.985215]  ? trace_hardirqs_off+0xb8/0x310
[  399.989626]  __alloc_pages_slowpath+0x26e8/0x2e10
[  399.994480]  ? warn_alloc+0x120/0x120
[  399.998280]  ? warn_alloc+0x120/0x120
[  400.002084]  ? warn_alloc+0x120/0x120
[  400.005874]  ? print_usage_bug+0xc0/0xc0
[  400.009928]  ? mark_held_locks+0x130/0x130
[  400.014158]  ? kvm_clock_read+0x18/0x30
[  400.018126]  ? print_usage_bug+0xc0/0xc0
[  400.022178]  ? __lock_acquire+0x62f/0x4c20
[  400.026400]  ? __lock_acquire+0x62f/0x4c20
[  400.030629]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.036157]  ? should_fail+0x22d/0xd01
[  400.040064]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  400.045162]  ? __lock_acquire+0x62f/0x4c20
[  400.049405]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  400.054516]  ? __lock_acquire+0x62f/0x4c20
[  400.059180]  ? should_fail+0x22d/0xd01
[  400.063069]  ? mark_held_locks+0x130/0x130
[  400.067298]  ? mark_held_locks+0x130/0x130
[  400.071532]  ? print_usage_bug+0xc0/0xc0
[  400.075594]  ? zap_class+0x640/0x640
[  400.079302]  ? print_usage_bug+0xc0/0xc0
[  400.083352]  ? find_held_lock+0x36/0x1c0
[  400.087410]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.092940]  ? check_preemption_disabled+0x48/0x280
[  400.097965]  ? __lock_is_held+0xb5/0x140
[  400.102041]  __alloc_pages_nodemask+0xa80/0xde0
[  400.106704]  ? zap_class+0x640/0x640
[  400.110417]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  400.115435]  ? find_held_lock+0x36/0x1c0
[  400.119500]  ? ____cache_alloc_node+0x1c7/0x1e0
[  400.124162]  ? lock_downgrade+0x900/0x900
[  400.128310]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.133844]  cache_grow_begin+0xa5/0x8c0
[  400.137897]  ? do_raw_spin_unlock+0xa7/0x330
[  400.142310]  fallback_alloc+0x204/0x2e0
[  400.146283]  ____cache_alloc_node+0x1c7/0x1e0
[  400.150781]  kmem_cache_alloc_node+0xe3/0x730
[  400.155270]  ? ipv6_get_ifaddr+0x42e/0x620
[  400.159983]  __alloc_skb+0x119/0x770
[  400.163697]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.168969]  ? netdev_alloc_frag+0x1f0/0x1f0
[  400.173369]  ? lock_downgrade+0x900/0x900
[  400.177515]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.183047]  ? refcount_sub_and_test_checked+0x203/0x310
[  400.188495]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  400.193939]  ? addrconf_rs_timer+0x690/0x690
[  400.198354]  ndisc_alloc_skb+0x144/0x340
[  400.202433]  ndisc_send_rs+0x331/0x6e0
[  400.206315]  addrconf_rs_timer+0x314/0x690
[  400.210554]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.214809]  call_timer_fn+0x272/0x920
[  400.218692]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.222917]  ? process_timeout+0x40/0x40
[  400.226976]  ? mark_held_locks+0xc7/0x130
[  400.231137]  ? _raw_spin_unlock_irq+0x27/0x80
[  400.235626]  ? _raw_spin_unlock_irq+0x27/0x80
[  400.240111]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.244335]  ? lockdep_hardirqs_on+0x296/0x5b0
[  400.248925]  ? trace_hardirqs_on+0xbd/0x310
[  400.253242]  ? kasan_check_read+0x11/0x20
[  400.258246]  ? __run_timers+0x7da/0xc70
[  400.262221]  ? trace_hardirqs_off_caller+0x310/0x310
[  400.267339]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.271566]  __run_timers+0x7e5/0xc70
[  400.275369]  ? timer_fixup_init+0x70/0x70
[  400.279511]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  400.284541]  ? zap_class+0x640/0x640
[  400.288268]  ? print_usage_bug+0xc0/0xc0
[  400.292323]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  400.297515]  ? find_held_lock+0x36/0x1c0
[  400.301572]  ? zap_class+0x640/0x640
[  400.305285]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.310814]  ? check_preemption_disabled+0x48/0x280
[  400.315828]  ? __lock_is_held+0xb5/0x140
[  400.319884]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.325415]  ? check_preemption_disabled+0x48/0x280
[  400.330427]  run_timer_softirq+0x52/0xb0
[  400.334487]  ? rcu_read_lock_sched_held+0x14f/0x180
[  400.339499]  __do_softirq+0x308/0xb7e
[  400.343301]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  400.347792]  ? lock_downgrade+0x900/0x900
[  400.351934]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  400.357036]  ? pvclock_read_flags+0x160/0x160
[  400.362599]  ? lapic_next_event+0x5a/0x90
[  400.366758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.372300]  ? kvm_clock_read+0x18/0x30
[  400.376270]  ? kvm_sched_clock_read+0x9/0x20
[  400.380675]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.386213]  ? check_preemption_disabled+0x48/0x280
[  400.391244]  irq_exit+0x17f/0x1c0
[  400.394689]  smp_apic_timer_interrupt+0x1cb/0x760
[  400.399520]  ? smp_reschedule_interrupt+0x109/0x650
[  400.404531]  ? smp_call_function_single_interrupt+0x650/0x650
[  400.410404]  ? interrupt_entry+0xb5/0xc0
[  400.414459]  ? trace_hardirqs_off_caller+0xbb/0x310
[  400.419467]  ? trace_hardirqs_off_caller+0xbb/0x310
[  400.424475]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.429308]  ? trace_hardirqs_on_caller+0x310/0x310
[  400.434316]  ? trace_hardirqs_on_caller+0x310/0x310
[  400.439326]  ? task_prio+0x50/0x50
[  400.442861]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.448389]  ? check_preemption_disabled+0x48/0x280
[  400.453411]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.459040]  apic_timer_interrupt+0xf/0x20
[  400.463265]  </IRQ>
[  400.465497] RIP: 0010:dump_stack+0x358/0x39d
[  400.469899] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  400.488793] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  400.496494] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  400.503764] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  400.511022] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  400.518301] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  400.525559] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  400.532828]  ? dump_stack+0x34f/0x39d
[  400.536629]  ? dump_stack_print_info.cold.1+0x20/0x20
[  400.541809]  ? mark_held_locks+0x130/0x130
[  400.546040]  ? mark_held_locks+0x130/0x130
[  400.550299]  dump_header+0x27b/0xf72
[  400.554106]  ? pagefault_out_of_memory+0x197/0x197
[  400.559291]  ? __lock_acquire+0x62f/0x4c20
[  400.563517]  ? percpu_ref_get_many+0x240/0x240
[  400.568094]  ? print_usage_bug+0xc0/0xc0
[  400.572152]  ? zap_class+0x640/0x640
[  400.575861]  ? print_usage_bug+0xc0/0xc0
[  400.579914]  ? print_usage_bug+0xc0/0xc0
[  400.583968]  ? zap_class+0x640/0x640
[  400.587674]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.593222]  ? find_held_lock+0x36/0x1c0
[  400.597280]  ? mark_held_locks+0xc7/0x130
[  400.601417]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  400.606506]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  400.611607]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  400.616186]  ? trace_hardirqs_on+0xbd/0x310
[  400.620518]  ? kasan_check_read+0x11/0x20
[  400.624652]  ? ___ratelimit+0x3b4/0x672
[  400.628635]  ? trace_hardirqs_off_caller+0x310/0x310
[  400.633732]  ? trace_hardirqs_on+0x310/0x310
[  400.638248]  ? lock_downgrade+0x900/0x900
[  400.642488]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  400.647584]  ? ___ratelimit+0x3b9/0x672
[  400.651552]  ? idr_get_free+0xf70/0xf70
[  400.655517]  ? find_held_lock+0x36/0x1c0
[  400.660370]  oom_kill_process.cold.27+0x10/0x903
[  400.665121]  ? zap_class+0x640/0x640
[  400.668828]  ? check_preemption_disabled+0x48/0x280
[  400.673841]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  400.678775]  ? kasan_check_read+0x11/0x20
[  400.683012]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.688280]  ? oom_evaluate_task+0x540/0x540
[  400.692684]  ? find_held_lock+0x36/0x1c0
[  400.696753]  ? out_of_memory+0x974/0x1430
[  400.700892]  ? lock_downgrade+0x900/0x900
[  400.705028]  ? check_preemption_disabled+0x48/0x280
[  400.710048]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  400.714966]  ? kasan_check_read+0x11/0x20
[  400.719105]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.724371]  ? rcu_softirq_qs+0x20/0x20
[  400.728343]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.733874]  ? oom_evaluate_task+0x302/0x540
[  400.738277]  out_of_memory+0xa84/0x1430
[  400.742263]  ? oom_killer_disable+0x3a0/0x3a0
[  400.746751]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  400.751704]  ? __ww_mutex_check_waiters+0x160/0x160
[  400.756734]  __alloc_pages_slowpath+0x2354/0x2e10
[  400.762132]  ? warn_alloc+0x120/0x120
[  400.765925]  ? mark_held_locks+0x130/0x130
[  400.770157]  ? find_get_entry+0xaae/0x1120
[  400.774394]  ? filemap_map_pages+0x1a20/0x1a20
[  400.778970]  ? zap_class+0x640/0x640
[  400.782679]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.788218]  ? check_preemption_disabled+0x48/0x280
[  400.793229]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.798763]  ? should_fail+0x22d/0xd01
[  400.802643]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  400.807752]  ? zap_class+0x640/0x640
[  400.811476]  ? __lock_is_held+0xb5/0x140
[  400.815545]  ? mark_held_locks+0x130/0x130
[  400.819774]  ? lock_release+0xa00/0xa00
[  400.823744]  ? perf_trace_sched_process_exec+0x860/0x860
[  400.829198]  ? xa_load+0x2ba/0x460
[  400.832847]  ? lock_downgrade+0x900/0x900
[  400.836995]  ? __might_sleep+0x95/0x190
[  400.840964]  __alloc_pages_nodemask+0xa80/0xde0
[  400.845636]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  400.850648]  ? __page_cache_alloc+0x191/0x5c0
[  400.855135]  ? xa_load+0x2e1/0x460
[  400.859425]  ? xa_clear_mark+0x40/0x40
[  400.863307]  ? zap_class+0x640/0x640
[  400.867035]  ? zap_class+0x640/0x640
[  400.870742]  ? zap_class+0x640/0x640
[  400.874451]  ? __do_page_cache_readahead+0x663/0x810
[  400.879547]  ? find_held_lock+0x36/0x1c0
[  400.883608]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  400.889148]  alloc_pages_current+0x173/0x350
[  400.893565]  __page_cache_alloc+0x38c/0x5c0
[  400.897878]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  400.902796]  ? kasan_check_read+0x11/0x20
[  400.906934]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.912203]  ? generic_perform_write+0x6a0/0x6a0
[  400.916953]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.922485]  ? check_preemption_disabled+0x48/0x280
[  400.927498]  filemap_fault+0x1595/0x25f0
[  400.931560]  ? __lock_page_or_retry+0xa00/0xa00
[  400.936223]  ? mark_held_locks+0x130/0x130
[  400.940460]  ? filemap_map_pages+0xd6b/0x1a20
[  400.944977]  ? lock_downgrade+0x900/0x900
[  400.949118]  ? check_preemption_disabled+0x48/0x280
[  400.954131]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  400.959817]  ? kasan_check_read+0x11/0x20
[  400.963958]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.969225]  ? rcu_softirq_qs+0x20/0x20
[  400.973211]  ? filemap_map_pages+0xd92/0x1a20
[  400.977710]  ? find_get_entries_tag+0x1400/0x1400
[  400.982549]  ? debug_object_destroy+0x2b0/0x2b0
[  400.987215]  ? lock_pi_update_atomic+0x150/0x150
[  400.991966]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.997502]  ? lock_acquire+0x1ed/0x520
[  401.001464]  ? ext4_filemap_fault+0x7a/0xad
[  401.005779]  ? lock_release+0xa00/0xa00
[  401.009745]  ? perf_trace_sched_process_exec+0x860/0x860
[  401.015197]  ? print_usage_bug+0xc0/0xc0
[  401.019249]  ? print_usage_bug+0xc0/0xc0
[  401.023314]  ? down_read+0x8d/0x120
[  401.026930]  ? ext4_filemap_fault+0x7a/0xad
[  401.031258]  ? __down_interruptible+0x700/0x700
[  401.035927]  ext4_filemap_fault+0x82/0xad
[  401.040068]  __do_fault+0x100/0x6b0
[  401.043696]  ? pmd_devmap_trans_unstable+0x220/0x220
[  401.048793]  ? mark_held_locks+0x130/0x130
[  401.053019]  ? mark_held_locks+0x130/0x130
[  401.057253]  ? do_raw_spin_trylock+0x270/0x270
[  401.062617]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.068150]  __handle_mm_fault+0x3ea0/0x5be0
[  401.072577]  ? perf_trace_lock+0x7a0/0x7a0
[  401.076809]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  401.081645]  ? __switch_to_asm+0x34/0x70
[  401.085694]  ? __switch_to_asm+0x34/0x70
[  401.089761]  ? zap_class+0x640/0x640
[  401.093467]  ? zap_class+0x640/0x640
[  401.097175]  ? __x64_sys_futex+0x53e/0x6a0
[  401.101408]  ? find_held_lock+0x36/0x1c0
[  401.105469]  ? handle_mm_fault+0x42a/0xc70
[  401.109702]  ? lock_downgrade+0x900/0x900
[  401.113845]  ? check_preemption_disabled+0x48/0x280
[  401.118873]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  401.123793]  ? kasan_check_read+0x11/0x20
[  401.127935]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  401.133203]  ? rcu_softirq_qs+0x20/0x20
[  401.137176]  ? trace_hardirqs_off_caller+0x310/0x310
[  401.142274]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.147803]  ? check_preemption_disabled+0x48/0x280
[  401.152817]  handle_mm_fault+0x54f/0xc70
[  401.156877]  ? __handle_mm_fault+0x5be0/0x5be0
[  401.162250]  ? find_vma+0x34/0x190
[  401.165786]  __do_page_fault+0x5e8/0xe60
[  401.169840]  ? trace_hardirqs_off+0xb8/0x310
[  401.174251]  do_page_fault+0xf2/0x7e0
[  401.178044]  ? vmalloc_sync_all+0x30/0x30
[  401.182183]  ? error_entry+0x70/0xd0
[  401.185886]  ? trace_hardirqs_off_caller+0xbb/0x310
[  401.190892]  ? trace_hardirqs_on_caller+0xc0/0x310
[  401.195815]  ? syscall_return_slowpath+0x5e0/0x5e0
[  401.200736]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.205574]  ? trace_hardirqs_on_caller+0x310/0x310
[  401.210581]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  401.216026]  ? prepare_exit_to_usermode+0x291/0x3b0
[  401.221035]  ? page_fault+0x8/0x30
[  401.224586]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.229423]  ? page_fault+0x8/0x30
[  401.232958]  page_fault+0x1e/0x30
[  401.236402] RIP: 0033:0x45ddf3
[  401.239597] Code: Bad RIP value.
[  401.242965] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  401.248318] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  401.255580] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  401.263625] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  401.270881] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  401.278139] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  401.285426] warn_alloc_show_mem: 1 callbacks suppressed
[  401.285435] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  401.285437] Mem-Info:
[  401.285467] active_anon:54141 inactive_anon:292 isolated_anon:0
[  401.285467]  active_file:12 inactive_file:13 isolated_file:0
[  401.285467]  unevictable:0 dirty:0 writeback:0 unstable:0
[  401.285467]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  401.285467]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  401.285467]  free:13705 free_pcp:178 free_cma:0
[  401.290805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  401.297550] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  401.299932] Call Trace:
[  401.332784] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  401.342132]  dump_stack+0x244/0x39d
[  401.370073] lowmem_reserve[]: 0 2818 6321 6321
[  401.372654]  ? dump_stack_print_info.cold.1+0x20/0x20
[  401.398732] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  401.402358]  warn_alloc.cold.116+0xb7/0x1bd
[  401.406897] lowmem_reserve[]: 0 0 3503 3503
[  401.412085]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  401.439560] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  401.443869]  ? lock_downgrade+0x900/0x900
[  401.448158] lowmem_reserve[]: 0 0 0 0
[  401.452994]  ? trace_hardirqs_off+0xb8/0x310
[  401.482701] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  401.486844]  ? trace_hardirqs_off+0xb8/0x310
[  401.490607] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  401.495010]  __alloc_pages_slowpath+0x26e8/0x2e10
[  401.508499] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  401.512915]  ? warn_alloc+0x120/0x120
[  401.528125] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  401.532952]  ? warn_alloc+0x120/0x120
[  401.547144] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  401.550943]  ? warn_alloc+0x120/0x120
[  401.560471] 366 total pagecache pages
[  401.564254]  ? print_usage_bug+0xc0/0xc0
[  401.572799] 0 pages in swap cache
[  401.576573]  ? __alloc_pages_slowpath+0x26e8/0x2e10
[  401.580343] Swap cache stats: add 0, delete 0, find 0/0
[  401.584384]  ? print_usage_bug+0xc0/0xc0
[  401.587802] Free swap  = 0kB
[  401.592800]  ? print_usage_bug+0xc0/0xc0
[  401.598139] Total swap = 0kB
[  401.602190]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.605177] 1965979 pages RAM
[  401.609221]  ? should_fail+0x22d/0xd01
[  401.612214] 0 pages HighMem/MovableOnly
[  401.617733]  ? mark_held_locks+0x130/0x130
[  401.620811] 342854 pages reserved
[  401.624683]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  401.628623] 0 pages cma reserved
[  401.632842]  ? __lock_acquire+0x62f/0x4c20
[  401.636322] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  401.641363]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  401.641374]  ? __lock_acquire+0x62f/0x4c20
[  401.641388]  ? should_fail+0x22d/0xd01
[  401.644781] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  401.648949]  ? print_usage_bug+0xc0/0xc0
[  401.655408] syz-fuzzer cpuset=/ mems_allowed=0
[  401.660876]  ? mark_held_locks+0x130/0x130
[  401.691996]  ? mark_held_locks+0x130/0x130
[  401.696234]  ? zap_class+0x640/0x640
[  401.699942]  ? ret_from_fork+0x3a/0x50
[  401.703826]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.709354]  ? check_preemption_disabled+0x48/0x280
[  401.714368]  ? __lock_is_held+0xb5/0x140
[  401.718426]  __alloc_pages_nodemask+0xa80/0xde0
[  401.723083]  ? zap_class+0x640/0x640
[  401.726792]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  401.731811]  ? find_held_lock+0x36/0x1c0
[  401.735872]  ? ____cache_alloc_node+0x1c7/0x1e0
[  401.740534]  ? lock_downgrade+0x900/0x900
[  401.744680]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.750216]  cache_grow_begin+0xa5/0x8c0
[  401.754269]  ? do_raw_spin_unlock+0xa7/0x330
[  401.758966]  fallback_alloc+0x204/0x2e0
[  401.763460]  ____cache_alloc_node+0x1c7/0x1e0
[  401.767971]  kmem_cache_alloc_node+0xe3/0x730
[  401.772460]  ? mark_held_locks+0xc7/0x130
[  401.776612]  __alloc_skb+0x119/0x770
[  401.780322]  ? netdev_alloc_frag+0x1f0/0x1f0
[  401.784721]  ? do_raw_spin_trylock+0x270/0x270
[  401.789295]  ? kmem_cache_alloc_trace+0x353/0x750
[  401.794146]  ? queue_work_on+0x12c/0x1e0
[  401.798205]  ? switchdev_port_obj_del+0xdc/0x440
[  401.802956]  ? switchdev_trans_item_enqueue+0x260/0x260
[  401.808320]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  401.813339]  __br_mdb_notify+0x4ff/0x15d0
[  401.817493]  ? __br_mdb_add+0x7f0/0x7f0
[  401.821468]  ? zap_class+0x640/0x640
[  401.825191]  ? br_multicast_group_expired+0x96/0x610
[  401.830286]  ? lock_downgrade+0x900/0x900
[  401.834434]  br_mdb_notify+0x310/0x410
[  401.838315]  ? br_mdb_dump+0x27b0/0x27b0
[  401.842372]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.847911]  br_multicast_group_expired+0x1bc/0x610
[  401.852926]  ? br_mdb_free+0x80/0x80
[  401.856645]  call_timer_fn+0x272/0x920
[  401.860886]  ? br_mdb_free+0x80/0x80
[  401.864601]  ? process_timeout+0x40/0x40
[  401.868665]  ? __run_timers+0x7da/0xc70
[  401.872633]  ? _raw_spin_unlock_irq+0x27/0x80
[  401.877139]  ? _raw_spin_unlock_irq+0x27/0x80
[  401.881624]  ? br_mdb_free+0x80/0x80
[  401.885332]  ? lockdep_hardirqs_on+0x296/0x5b0
[  401.889912]  ? trace_hardirqs_on+0xbd/0x310
[  401.894353]  ? kasan_check_read+0x11/0x20
[  401.898493]  ? __run_timers+0x7da/0xc70
[  401.902461]  ? trace_hardirqs_off_caller+0x310/0x310
[  401.907559]  ? br_mdb_free+0x80/0x80
[  401.911273]  ? br_mdb_free+0x80/0x80
[  401.914977]  __run_timers+0x7e5/0xc70
[  401.918780]  ? timer_fixup_init+0x70/0x70
[  401.922917]  ? _raw_spin_unlock_irq+0x27/0x80
[  401.927406]  ? _raw_spin_unlock_irq+0x27/0x80
[  401.932108]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  401.936692]  ? trace_hardirqs_on+0xbd/0x310
[  401.941004]  ? kasan_check_read+0x11/0x20
[  401.945148]  ? finish_task_switch+0x1f4/0x910
[  401.949639]  ? trace_hardirqs_off_caller+0x310/0x310
[  401.954733]  ? compat_start_thread+0x80/0x80
[  401.959473]  ? pvclock_read_flags+0x160/0x160
[  401.964045]  ? __switch_to_asm+0x34/0x70
[  401.968106]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.973642]  ? check_preemption_disabled+0x48/0x280
[  401.978660]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  401.984195]  ? rcu_pm_notify+0xc0/0xc0
[  401.988074]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.993608]  ? check_preemption_disabled+0x48/0x280
[  401.998625]  run_timer_softirq+0x52/0xb0
[  402.002679]  ? rcu_read_lock_sched_held+0x14f/0x180
[  402.007687]  __do_softirq+0x308/0xb7e
[  402.011489]  ? trace_hardirqs_on_caller+0xc0/0x310
[  402.016418]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  402.021511]  ? trace_hardirqs_on+0x310/0x310
[  402.025911]  ? schedule+0x108/0x460
[  402.029541]  ? trace_hardirqs_off+0xb8/0x310
[  402.033945]  ? smpboot_thread_fn+0x68b/0xa00
[  402.038345]  ? trace_hardirqs_on+0x310/0x310
[  402.042744]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.048271]  ? check_preemption_disabled+0x48/0x280
[  402.053281]  ? takeover_tasklets+0xa90/0xa90
[  402.057683]  run_ksoftirqd+0x5e/0x100
[  402.061784]  smpboot_thread_fn+0x68b/0xa00
[  402.066013]  ? sort_range+0x30/0x30
[  402.069635]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  402.074728]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.080262]  ? __kthread_parkme+0xfb/0x1a0
[  402.084489]  ? sort_range+0x30/0x30
[  402.088132]  kthread+0x35a/0x440
[  402.091512]  ? kthread_stop+0x900/0x900
[  402.095477]  ret_from_fork+0x3a/0x50
[  402.099204] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  402.099337] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  402.106129] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  402.116416] ksoftirqd/0 cpuset=/ mems_allowed=0
[  402.125751] Call Trace:
[  402.132964]  <IRQ>
[  402.135118]  dump_stack+0x244/0x39d
[  402.138741]  ? dump_stack_print_info.cold.1+0x20/0x20
[  402.143940]  warn_alloc.cold.116+0xb7/0x1bd
[  402.148255]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  402.153103]  ? lock_downgrade+0x900/0x900
[  402.157251]  ? trace_hardirqs_off+0xb8/0x310
[  402.162440]  ? trace_hardirqs_off+0xb8/0x310
[  402.166847]  __alloc_pages_slowpath+0x26e8/0x2e10
[  402.171816]  ? warn_alloc+0x120/0x120
[  402.175635]  ? print_usage_bug+0xc0/0xc0
[  402.179776]  ? warn_alloc+0x120/0x120
[  402.183573]  ? warn_alloc+0x120/0x120
[  402.187371]  ? print_usage_bug+0xc0/0xc0
[  402.191432]  ? print_usage_bug+0xc0/0xc0
[  402.195485]  ? __lock_acquire+0x62f/0x4c20
[  402.199717]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.205268]  ? should_fail+0x22d/0xd01
[  402.209154]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.214248]  ? __lock_acquire+0x62f/0x4c20
[  402.218477]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.223574]  ? __lock_acquire+0x62f/0x4c20
[  402.227805]  ? should_fail+0x22d/0xd01
[  402.231695]  ? find_held_lock+0x36/0x1c0
[  402.235758]  ? mark_held_locks+0x130/0x130
[  402.240006]  ? mark_held_locks+0x130/0x130
[  402.244230]  ? zap_class+0x640/0x640
[  402.248043]  ? zap_class+0x640/0x640
[  402.251756]  ? print_usage_bug+0xc0/0xc0
[  402.255813]  ? do_raw_spin_unlock+0xa7/0x330
[  402.261213]  ? zap_class+0x640/0x640
[  402.264942]  ? print_usage_bug+0xc0/0xc0
[  402.268995]  ? wq_watchdog_touch+0x9c/0xfe
[  402.273224]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.278756]  ? check_preemption_disabled+0x48/0x280
[  402.283775]  ? __lock_is_held+0xb5/0x140
[  402.287833]  __alloc_pages_nodemask+0xa80/0xde0
[  402.292491]  ? zap_class+0x640/0x640
[  402.296209]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  402.301231]  ? find_held_lock+0x36/0x1c0
[  402.305310]  ? ____cache_alloc_node+0x1c7/0x1e0
[  402.309971]  ? lock_downgrade+0x900/0x900
[  402.314121]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.319655]  cache_grow_begin+0xa5/0x8c0
[  402.323706]  ? do_raw_spin_unlock+0xa7/0x330
[  402.328114]  fallback_alloc+0x204/0x2e0
[  402.332112]  ____cache_alloc_node+0x1c7/0x1e0
[  402.336622]  kmem_cache_alloc_node+0xe3/0x730
[  402.341113]  ? ipv6_get_ifaddr+0x42e/0x620
[  402.345352]  __alloc_skb+0x119/0x770
[  402.349057]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.354339]  ? netdev_alloc_frag+0x1f0/0x1f0
[  402.359554]  ? lock_downgrade+0x900/0x900
[  402.363717]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.369251]  ? refcount_sub_and_test_checked+0x203/0x310
[  402.374721]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  402.380164]  ? addrconf_rs_timer+0x690/0x690
[  402.384578]  ndisc_alloc_skb+0x144/0x340
[  402.388640]  ndisc_send_rs+0x331/0x6e0
[  402.392521]  addrconf_rs_timer+0x314/0x690
[  402.396745]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.400981]  call_timer_fn+0x272/0x920
[  402.404858]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.409091]  ? process_timeout+0x40/0x40
[  402.413158]  ? mark_held_locks+0xc7/0x130
[  402.417300]  ? _raw_spin_unlock_irq+0x27/0x80
[  402.421787]  ? _raw_spin_unlock_irq+0x27/0x80
[  402.426287]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.430538]  ? lockdep_hardirqs_on+0x296/0x5b0
[  402.435139]  ? trace_hardirqs_on+0xbd/0x310
[  402.439450]  ? kasan_check_read+0x11/0x20
[  402.443602]  ? __run_timers+0x7da/0xc70
[  402.447567]  ? trace_hardirqs_off_caller+0x310/0x310
[  402.452676]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.456911]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.462076]  __run_timers+0x7e5/0xc70
[  402.465877]  ? timer_fixup_init+0x70/0x70
[  402.470045]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  402.475093]  ? zap_class+0x640/0x640
[  402.478799]  ? print_usage_bug+0xc0/0xc0
[  402.482853]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  402.488041]  ? find_held_lock+0x36/0x1c0
[  402.492115]  ? zap_class+0x640/0x640
[  402.495822]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.501354]  ? check_preemption_disabled+0x48/0x280
[  402.506373]  ? __lock_is_held+0xb5/0x140
[  402.510438]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.515969]  ? check_preemption_disabled+0x48/0x280
[  402.520978]  run_timer_softirq+0x52/0xb0
[  402.525031]  ? rcu_read_lock_sched_held+0x14f/0x180
[  402.530037]  __do_softirq+0x308/0xb7e
[  402.533839]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  402.538324]  ? lock_downgrade+0x900/0x900
[  402.542467]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  402.547676]  ? pvclock_read_flags+0x160/0x160
[  402.552171]  ? lapic_next_event+0x5a/0x90
[  402.556311]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.562597]  ? kvm_clock_read+0x18/0x30
[  402.566563]  ? kvm_sched_clock_read+0x9/0x20
[  402.570973]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.576503]  ? check_preemption_disabled+0x48/0x280
[  402.581522]  irq_exit+0x17f/0x1c0
[  402.584969]  smp_apic_timer_interrupt+0x1cb/0x760
[  402.589804]  ? smp_reschedule_interrupt+0x109/0x650
[  402.594831]  ? smp_call_function_single_interrupt+0x650/0x650
[  402.600706]  ? interrupt_entry+0xb5/0xc0
[  402.604847]  ? trace_hardirqs_off_caller+0xbb/0x310
[  402.609859]  ? trace_hardirqs_off_caller+0xbb/0x310
[  402.614869]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.619702]  ? trace_hardirqs_on_caller+0x310/0x310
[  402.624707]  ? trace_hardirqs_on_caller+0x310/0x310
[  402.629718]  ? task_prio+0x50/0x50
[  402.633250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.638777]  ? check_preemption_disabled+0x48/0x280
[  402.643794]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.648633]  apic_timer_interrupt+0xf/0x20
[  402.652857]  </IRQ>
[  402.655090] RIP: 0010:dump_stack+0x358/0x39d
[  402.659883] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  402.678778] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  402.686476] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  402.693736] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  402.700999] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  402.708254] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  402.715514] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  402.722790]  ? dump_stack+0x34f/0x39d
[  402.726596]  ? dump_stack_print_info.cold.1+0x20/0x20
[  402.731779]  ? mark_held_locks+0x130/0x130
[  402.736009]  ? mark_held_locks+0x130/0x130
[  402.740239]  dump_header+0x27b/0xf72
[  402.743953]  ? pagefault_out_of_memory+0x197/0x197
[  402.748914]  ? __lock_acquire+0x62f/0x4c20
[  402.753141]  ? percpu_ref_get_many+0x240/0x240
[  402.757717]  ? print_usage_bug+0xc0/0xc0
[  402.762105]  ? zap_class+0x640/0x640
[  402.765812]  ? print_usage_bug+0xc0/0xc0
[  402.769860]  ? print_usage_bug+0xc0/0xc0
[  402.773909]  ? zap_class+0x640/0x640
[  402.777622]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.783154]  ? find_held_lock+0x36/0x1c0
[  402.787220]  ? mark_held_locks+0xc7/0x130
[  402.791360]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  402.796452]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  402.801548]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  402.806130]  ? trace_hardirqs_on+0xbd/0x310
[  402.810440]  ? kasan_check_read+0x11/0x20
[  402.814579]  ? ___ratelimit+0x3b4/0x672
[  402.818547]  ? trace_hardirqs_off_caller+0x310/0x310
[  402.823644]  ? trace_hardirqs_on+0x310/0x310
[  402.828056]  ? lock_downgrade+0x900/0x900
[  402.832204]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  402.837299]  ? ___ratelimit+0x3b9/0x672
[  402.841271]  ? idr_get_free+0xf70/0xf70
[  402.845236]  ? find_held_lock+0x36/0x1c0
[  402.849297]  oom_kill_process.cold.27+0x10/0x903
[  402.854053]  ? zap_class+0x640/0x640
[  402.857758]  ? check_preemption_disabled+0x48/0x280
[  402.863528]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  402.868448]  ? kasan_check_read+0x11/0x20
[  402.872590]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.877862]  ? oom_evaluate_task+0x540/0x540
[  402.882269]  ? find_held_lock+0x36/0x1c0
[  402.886327]  ? out_of_memory+0x974/0x1430
[  402.890475]  ? lock_downgrade+0x900/0x900
[  402.894619]  ? check_preemption_disabled+0x48/0x280
[  402.899632]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  402.904554]  ? kasan_check_read+0x11/0x20
[  402.908701]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.913969]  ? rcu_softirq_qs+0x20/0x20
[  402.917940]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.923466]  ? oom_evaluate_task+0x302/0x540
[  402.927870]  out_of_memory+0xa84/0x1430
[  402.931846]  ? oom_killer_disable+0x3a0/0x3a0
[  402.936345]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  402.941266]  ? __ww_mutex_check_waiters+0x160/0x160
[  402.946288]  __alloc_pages_slowpath+0x2354/0x2e10
[  402.951161]  ? warn_alloc+0x120/0x120
[  402.954951]  ? mark_held_locks+0x130/0x130
[  402.959603]  ? find_get_entry+0xaae/0x1120
[  402.963861]  ? filemap_map_pages+0x1a20/0x1a20
[  402.968443]  ? zap_class+0x640/0x640
[  402.972152]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.977683]  ? check_preemption_disabled+0x48/0x280
[  402.982689]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.988218]  ? should_fail+0x22d/0xd01
[  402.992100]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.997197]  ? zap_class+0x640/0x640
[  403.000927]  ? __lock_is_held+0xb5/0x140
[  403.004985]  ? mark_held_locks+0x130/0x130
[  403.009213]  ? lock_release+0xa00/0xa00
[  403.013185]  ? perf_trace_sched_process_exec+0x860/0x860
[  403.018640]  ? xa_load+0x2ba/0x460
[  403.022176]  ? lock_downgrade+0x900/0x900
[  403.026321]  ? __might_sleep+0x95/0x190
[  403.030296]  __alloc_pages_nodemask+0xa80/0xde0
[  403.034969]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  403.039977]  ? __page_cache_alloc+0x191/0x5c0
[  403.044466]  ? xa_load+0x2e1/0x460
[  403.047998]  ? xa_clear_mark+0x40/0x40
[  403.051877]  ? zap_class+0x640/0x640
[  403.055588]  ? zap_class+0x640/0x640
[  403.060046]  ? zap_class+0x640/0x640
[  403.063767]  ? __do_page_cache_readahead+0x663/0x810
[  403.068867]  ? find_held_lock+0x36/0x1c0
[  403.072928]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  403.078461]  alloc_pages_current+0x173/0x350
[  403.082865]  __page_cache_alloc+0x38c/0x5c0
[  403.087176]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  403.092097]  ? kasan_check_read+0x11/0x20
[  403.096239]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.101506]  ? generic_perform_write+0x6a0/0x6a0
[  403.106253]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.111786]  ? check_preemption_disabled+0x48/0x280
[  403.116802]  filemap_fault+0x1595/0x25f0
[  403.120863]  ? __lock_page_or_retry+0xa00/0xa00
[  403.125633]  ? mark_held_locks+0x130/0x130
[  403.129868]  ? filemap_map_pages+0xd6b/0x1a20
[  403.134361]  ? lock_downgrade+0x900/0x900
[  403.138498]  ? check_preemption_disabled+0x48/0x280
[  403.143519]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  403.148440]  ? kasan_check_read+0x11/0x20
[  403.152579]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.157850]  ? rcu_softirq_qs+0x20/0x20
[  403.162607]  ? filemap_map_pages+0xd92/0x1a20
[  403.167107]  ? find_get_entries_tag+0x1400/0x1400
[  403.171947]  ? debug_object_destroy+0x2b0/0x2b0
[  403.176610]  ? lock_pi_update_atomic+0x150/0x150
[  403.181359]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.186897]  ? lock_acquire+0x1ed/0x520
[  403.190864]  ? ext4_filemap_fault+0x7a/0xad
[  403.195182]  ? lock_release+0xa00/0xa00
[  403.199145]  ? perf_trace_sched_process_exec+0x860/0x860
[  403.204588]  ? print_usage_bug+0xc0/0xc0
[  403.208646]  ? print_usage_bug+0xc0/0xc0
[  403.212723]  ? down_read+0x8d/0x120
[  403.216339]  ? ext4_filemap_fault+0x7a/0xad
[  403.220654]  ? __down_interruptible+0x700/0x700
[  403.225323]  ext4_filemap_fault+0x82/0xad
[  403.229463]  __do_fault+0x100/0x6b0
[  403.233087]  ? pmd_devmap_trans_unstable+0x220/0x220
[  403.238185]  ? mark_held_locks+0x130/0x130
[  403.242414]  ? mark_held_locks+0x130/0x130
[  403.246644]  ? do_raw_spin_trylock+0x270/0x270
[  403.251225]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.256756]  __handle_mm_fault+0x3ea0/0x5be0
[  403.261963]  ? perf_trace_lock+0x7a0/0x7a0
[  403.266202]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  403.271052]  ? __switch_to_asm+0x34/0x70
[  403.275106]  ? __switch_to_asm+0x34/0x70
[  403.279170]  ? zap_class+0x640/0x640
[  403.282874]  ? zap_class+0x640/0x640
[  403.286577]  ? __x64_sys_futex+0x53e/0x6a0
[  403.290811]  ? find_held_lock+0x36/0x1c0
[  403.294871]  ? handle_mm_fault+0x42a/0xc70
[  403.299115]  ? lock_downgrade+0x900/0x900
[  403.303258]  ? check_preemption_disabled+0x48/0x280
[  403.308266]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  403.313186]  ? kasan_check_read+0x11/0x20
[  403.317326]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.322594]  ? rcu_softirq_qs+0x20/0x20
[  403.326561]  ? trace_hardirqs_off_caller+0x310/0x310
[  403.331656]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.337188]  ? check_preemption_disabled+0x48/0x280
[  403.342201]  handle_mm_fault+0x54f/0xc70
[  403.346257]  ? __handle_mm_fault+0x5be0/0x5be0
[  403.350838]  ? find_vma+0x34/0x190
[  403.354382]  __do_page_fault+0x5e8/0xe60
[  403.358434]  ? trace_hardirqs_off+0xb8/0x310
[  403.363634]  do_page_fault+0xf2/0x7e0
[  403.367430]  ? vmalloc_sync_all+0x30/0x30
[  403.371569]  ? error_entry+0x70/0xd0
[  403.375275]  ? trace_hardirqs_off_caller+0xbb/0x310
[  403.380281]  ? trace_hardirqs_on_caller+0xc0/0x310
[  403.385204]  ? syscall_return_slowpath+0x5e0/0x5e0
[  403.390123]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  403.394967]  ? trace_hardirqs_on_caller+0x310/0x310
[  403.399975]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  403.405417]  ? prepare_exit_to_usermode+0x291/0x3b0
[  403.410423]  ? page_fault+0x8/0x30
[  403.413964]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  403.418803]  ? page_fault+0x8/0x30
[  403.422340]  page_fault+0x1e/0x30
[  403.425781] RIP: 0033:0x45ddf3
[  403.428978] Code: Bad RIP value.
[  403.432353] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  403.437702] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  403.444960] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  403.452221] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  403.460010] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  403.467269] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  403.474556] warn_alloc_show_mem: 1 callbacks suppressed
[  403.474565] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  403.474567] Mem-Info:
[  403.474595] active_anon:54141 inactive_anon:292 isolated_anon:0
[  403.474595]  active_file:12 inactive_file:13 isolated_file:0
[  403.474595]  unevictable:0 dirty:0 writeback:0 unstable:0
[  403.474595]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  403.474595]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  403.474595]  free:13705 free_pcp:178 free_cma:0
[  403.480025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  403.486763] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  403.489147] Call Trace:
[  403.521997] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  403.531352]  dump_stack+0x244/0x39d
[  403.559075] lowmem_reserve[]: 0 2818 6321 6321
[  403.561932]  ? dump_stack_print_info.cold.1+0x20/0x20
[  403.588019] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  403.591646]  warn_alloc.cold.116+0xb7/0x1bd
[  403.596191] lowmem_reserve[]: 0 0 3503 3503
[  403.601367]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  403.628830] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  403.633139]  ? lock_downgrade+0x900/0x900
[  403.637429] lowmem_reserve[]: 0 0 0 0
[  403.642260]  ? trace_hardirqs_off+0xb8/0x310
[  403.671884] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  403.676032]  ? trace_hardirqs_off+0xb8/0x310
[  403.679796] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  403.684194]  __alloc_pages_slowpath+0x26e8/0x2e10
[  403.697679] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  403.702101]  ? warn_alloc+0x120/0x120
[  403.717310] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  403.722135]  ? warn_alloc+0x120/0x120
[  403.736331] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  403.740112]  ? warn_alloc+0x120/0x120
[  403.748917] 366 total pagecache pages
[  403.752709]  ? print_usage_bug+0xc0/0xc0
[  403.762511] 0 pages in swap cache
[  403.766292]  ? __alloc_pages_slowpath+0x26e8/0x2e10
[  403.770060] Swap cache stats: add 0, delete 0, find 0/0
[  403.774114]  ? print_usage_bug+0xc0/0xc0
[  403.777534] Free swap  = 0kB
[  403.782545]  ? print_usage_bug+0xc0/0xc0
[  403.787877] Total swap = 0kB
[  403.791922]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.794905] 1965979 pages RAM
[  403.798949]  ? should_fail+0x22d/0xd01
[  403.801943] 0 pages HighMem/MovableOnly
[  403.801950] 342854 pages reserved
[  403.807467]  ? mark_held_locks+0x130/0x130
[  403.810553] 0 pages cma reserved
[  403.814429]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  403.818424] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  403.821809]  ? __lock_acquire+0x62f/0x4c20
[  403.821826]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  403.821841]  ? __lock_acquire+0x62f/0x4c20
[  403.826117] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  403.829414]  ? should_fail+0x22d/0xd01
[  403.834491] syz-fuzzer cpuset=/ mems_allowed=0
[  403.840969]  ? print_usage_bug+0xc0/0xc0
[  403.877514]  ? mark_held_locks+0x130/0x130
[  403.881750]  ? mark_held_locks+0x130/0x130
[  403.885990]  ? zap_class+0x640/0x640
[  403.889722]  ? ret_from_fork+0x3a/0x50
[  403.893608]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.899142]  ? check_preemption_disabled+0x48/0x280
[  403.904165]  ? __lock_is_held+0xb5/0x140
[  403.908243]  __alloc_pages_nodemask+0xa80/0xde0
[  403.912906]  ? zap_class+0x640/0x640
[  403.916635]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  403.921654]  ? find_held_lock+0x36/0x1c0
[  403.925714]  ? ____cache_alloc_node+0x1c7/0x1e0
[  403.930581]  ? lock_downgrade+0x900/0x900
[  403.934726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.940259]  cache_grow_begin+0xa5/0x8c0
[  403.944313]  ? do_raw_spin_unlock+0xa7/0x330
[  403.948720]  fallback_alloc+0x204/0x2e0
[  403.952692]  ____cache_alloc_node+0x1c7/0x1e0
[  403.957184]  kmem_cache_alloc_node+0xe3/0x730
[  403.961984]  ? mark_held_locks+0xc7/0x130
[  403.966142]  __alloc_skb+0x119/0x770
[  403.969849]  ? netdev_alloc_frag+0x1f0/0x1f0
[  403.974247]  ? do_raw_spin_trylock+0x270/0x270
[  403.978819]  ? kmem_cache_alloc_trace+0x353/0x750
[  403.983653]  ? queue_work_on+0x12c/0x1e0
[  403.987708]  ? switchdev_port_obj_del+0xdc/0x440
[  403.992459]  ? switchdev_trans_item_enqueue+0x260/0x260
[  403.997817]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  404.002833]  __br_mdb_notify+0x4ff/0x15d0
[  404.007004]  ? __br_mdb_add+0x7f0/0x7f0
[  404.010983]  ? zap_class+0x640/0x640
[  404.014696]  ? br_multicast_group_expired+0x96/0x610
[  404.019788]  ? lock_downgrade+0x900/0x900
[  404.023933]  br_mdb_notify+0x310/0x410
[  404.027816]  ? br_mdb_dump+0x27b0/0x27b0
[  404.031882]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.037416]  br_multicast_group_expired+0x1bc/0x610
[  404.042434]  ? br_mdb_free+0x80/0x80
[  404.046155]  call_timer_fn+0x272/0x920
[  404.050053]  ? br_mdb_free+0x80/0x80
[  404.053762]  ? process_timeout+0x40/0x40
[  404.057830]  ? __run_timers+0x7da/0xc70
[  404.062071]  ? _raw_spin_unlock_irq+0x27/0x80
[  404.066559]  ? _raw_spin_unlock_irq+0x27/0x80
[  404.071048]  ? br_mdb_free+0x80/0x80
[  404.074754]  ? lockdep_hardirqs_on+0x296/0x5b0
[  404.079330]  ? trace_hardirqs_on+0xbd/0x310
[  404.083643]  ? kasan_check_read+0x11/0x20
[  404.087790]  ? __run_timers+0x7da/0xc70
[  404.091758]  ? trace_hardirqs_off_caller+0x310/0x310
[  404.096853]  ? br_mdb_free+0x80/0x80
[  404.100581]  ? br_mdb_free+0x80/0x80
[  404.104283]  __run_timers+0x7e5/0xc70
[  404.108084]  ? timer_fixup_init+0x70/0x70
[  404.112223]  ? _raw_spin_unlock_irq+0x27/0x80
[  404.116705]  ? _raw_spin_unlock_irq+0x27/0x80
[  404.121202]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  404.125777]  ? trace_hardirqs_on+0xbd/0x310
[  404.130094]  ? kasan_check_read+0x11/0x20
[  404.134238]  ? finish_task_switch+0x1f4/0x910
[  404.138725]  ? trace_hardirqs_off_caller+0x310/0x310
[  404.143819]  ? compat_start_thread+0x80/0x80
[  404.148256]  ? pvclock_read_flags+0x160/0x160
[  404.152754]  ? __switch_to_asm+0x34/0x70
[  404.156807]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.162648]  ? check_preemption_disabled+0x48/0x280
[  404.167664]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  404.173198]  ? rcu_pm_notify+0xc0/0xc0
[  404.177077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.182609]  ? check_preemption_disabled+0x48/0x280
[  404.187624]  run_timer_softirq+0x52/0xb0
[  404.191678]  ? rcu_read_lock_sched_held+0x14f/0x180
[  404.196688]  __do_softirq+0x308/0xb7e
[  404.200488]  ? trace_hardirqs_on_caller+0xc0/0x310
[  404.205416]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  404.210510]  ? trace_hardirqs_on+0x310/0x310
[  404.214915]  ? schedule+0x108/0x460
[  404.218543]  ? trace_hardirqs_off+0xb8/0x310
[  404.222943]  ? smpboot_thread_fn+0x68b/0xa00
[  404.227353]  ? trace_hardirqs_on+0x310/0x310
[  404.231758]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.237288]  ? check_preemption_disabled+0x48/0x280
[  404.242299]  ? takeover_tasklets+0xa90/0xa90
[  404.246701]  run_ksoftirqd+0x5e/0x100
[  404.250497]  smpboot_thread_fn+0x68b/0xa00
[  404.254722]  ? sort_range+0x30/0x30
[  404.258342]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  404.263796]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.269328]  ? __kthread_parkme+0xfb/0x1a0
[  404.273558]  ? sort_range+0x30/0x30
[  404.277184]  kthread+0x35a/0x440
[  404.280545]  ? kthread_stop+0x900/0x900
[  404.284512]  ret_from_fork+0x3a/0x50
[  404.288240] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  404.288403] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  404.295169] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  404.305456] ksoftirqd/0 cpuset=/ mems_allowed=0
[  404.314791] Call Trace:
[  404.321999]  <IRQ>
[  404.324147]  dump_stack+0x244/0x39d
[  404.327776]  ? dump_stack_print_info.cold.1+0x20/0x20
[  404.332977]  warn_alloc.cold.116+0xb7/0x1bd
[  404.337292]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  404.342128]  ? lock_downgrade+0x900/0x900
[  404.346277]  ? trace_hardirqs_off+0xb8/0x310
[  404.350681]  ? trace_hardirqs_off+0xb8/0x310
[  404.355093]  __alloc_pages_slowpath+0x26e8/0x2e10
[  404.360893]  ? warn_alloc+0x120/0x120
[  404.364690]  ? print_usage_bug+0xc0/0xc0
[  404.368748]  ? warn_alloc+0x120/0x120
[  404.372547]  ? warn_alloc+0x120/0x120
[  404.376342]  ? print_usage_bug+0xc0/0xc0
[  404.380400]  ? print_usage_bug+0xc0/0xc0
[  404.384452]  ? __lock_acquire+0x62f/0x4c20
[  404.388688]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.394218]  ? should_fail+0x22d/0xd01
[  404.398101]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  404.403201]  ? __lock_acquire+0x62f/0x4c20
[  404.407438]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  404.412538]  ? __lock_acquire+0x62f/0x4c20
[  404.416774]  ? should_fail+0x22d/0xd01
[  404.420652]  ? find_held_lock+0x36/0x1c0
[  404.424711]  ? mark_held_locks+0x130/0x130
[  404.428961]  ? mark_held_locks+0x130/0x130
[  404.433201]  ? zap_class+0x640/0x640
[  404.436905]  ? zap_class+0x640/0x640
[  404.440614]  ? print_usage_bug+0xc0/0xc0
[  404.444660]  ? do_raw_spin_unlock+0xa7/0x330
[  404.449057]  ? zap_class+0x640/0x640
[  404.452765]  ? print_usage_bug+0xc0/0xc0
[  404.456824]  ? wq_watchdog_touch+0x9c/0xfe
[  404.461508]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.467038]  ? check_preemption_disabled+0x48/0x280
[  404.472059]  ? __lock_is_held+0xb5/0x140
[  404.476120]  __alloc_pages_nodemask+0xa80/0xde0
[  404.480798]  ? zap_class+0x640/0x640
[  404.484506]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  404.489530]  ? find_held_lock+0x36/0x1c0
[  404.493593]  ? ____cache_alloc_node+0x1c7/0x1e0
[  404.498254]  ? lock_downgrade+0x900/0x900
[  404.502402]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.507933]  cache_grow_begin+0xa5/0x8c0
[  404.511993]  ? do_raw_spin_unlock+0xa7/0x330
[  404.516400]  fallback_alloc+0x204/0x2e0
[  404.520372]  ____cache_alloc_node+0x1c7/0x1e0
[  404.524859]  kmem_cache_alloc_node+0xe3/0x730
[  404.529352]  ? ipv6_get_ifaddr+0x42e/0x620
[  404.533589]  __alloc_skb+0x119/0x770
[  404.537297]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.542568]  ? netdev_alloc_frag+0x1f0/0x1f0
[  404.546971]  ? lock_downgrade+0x900/0x900
[  404.551117]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.556647]  ? refcount_sub_and_test_checked+0x203/0x310
[  404.562857]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  404.568298]  ? addrconf_rs_timer+0x690/0x690
[  404.572702]  ndisc_alloc_skb+0x144/0x340
[  404.576755]  ndisc_send_rs+0x331/0x6e0
[  404.580638]  addrconf_rs_timer+0x314/0x690
[  404.584874]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.589126]  call_timer_fn+0x272/0x920
[  404.593004]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.597231]  ? process_timeout+0x40/0x40
[  404.601292]  ? mark_held_locks+0xc7/0x130
[  404.605433]  ? _raw_spin_unlock_irq+0x27/0x80
[  404.609921]  ? _raw_spin_unlock_irq+0x27/0x80
[  404.614418]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.618646]  ? lockdep_hardirqs_on+0x296/0x5b0
[  404.623221]  ? trace_hardirqs_on+0xbd/0x310
[  404.627537]  ? kasan_check_read+0x11/0x20
[  404.631673]  ? __run_timers+0x7da/0xc70
[  404.635641]  ? trace_hardirqs_off_caller+0x310/0x310
[  404.640736]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.644963]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.649189]  __run_timers+0x7e5/0xc70
[  404.652992]  ? timer_fixup_init+0x70/0x70
[  404.657149]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  404.662622]  ? zap_class+0x640/0x640
[  404.666334]  ? print_usage_bug+0xc0/0xc0
[  404.670393]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  404.675580]  ? find_held_lock+0x36/0x1c0
[  404.679638]  ? zap_class+0x640/0x640
[  404.683357]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.688897]  ? check_preemption_disabled+0x48/0x280
[  404.693921]  ? __lock_is_held+0xb5/0x140
[  404.697987]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.703519]  ? check_preemption_disabled+0x48/0x280
[  404.708530]  run_timer_softirq+0x52/0xb0
[  404.712586]  ? rcu_read_lock_sched_held+0x14f/0x180
[  404.717598]  __do_softirq+0x308/0xb7e
[  404.721397]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  404.725884]  ? lock_downgrade+0x900/0x900
[  404.730039]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  404.735143]  ? pvclock_read_flags+0x160/0x160
[  404.739629]  ? lapic_next_event+0x5a/0x90
[  404.743770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.749302]  ? kvm_clock_read+0x18/0x30
[  404.753279]  ? kvm_sched_clock_read+0x9/0x20
[  404.757687]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.763961]  ? check_preemption_disabled+0x48/0x280
[  404.768983]  irq_exit+0x17f/0x1c0
[  404.772430]  smp_apic_timer_interrupt+0x1cb/0x760
[  404.777288]  ? smp_reschedule_interrupt+0x109/0x650
[  404.782297]  ? smp_call_function_single_interrupt+0x650/0x650
[  404.788174]  ? interrupt_entry+0xb5/0xc0
[  404.793552]  ? trace_hardirqs_off_caller+0xbb/0x310
[  404.798562]  ? trace_hardirqs_off_caller+0xbb/0x310
[  404.803574]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.808413]  ? trace_hardirqs_on_caller+0x310/0x310
[  404.813423]  ? trace_hardirqs_on_caller+0x310/0x310
[  404.818441]  ? task_prio+0x50/0x50
[  404.821977]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.827613]  ? check_preemption_disabled+0x48/0x280
[  404.832626]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.837466]  apic_timer_interrupt+0xf/0x20
[  404.841688]  </IRQ>
[  404.843925] RIP: 0010:dump_stack+0x358/0x39d
[  404.848333] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  404.868035] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  404.875753] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  404.883017] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  404.890282] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  404.897545] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  404.904807] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  404.912084]  ? dump_stack+0x34f/0x39d
[  404.915887]  ? dump_stack_print_info.cold.1+0x20/0x20
[  404.921086]  ? mark_held_locks+0x130/0x130
[  404.925314]  ? mark_held_locks+0x130/0x130
[  404.929543]  dump_header+0x27b/0xf72
[  404.933257]  ? pagefault_out_of_memory+0x197/0x197
[  404.938185]  ? __lock_acquire+0x62f/0x4c20
[  404.942419]  ? percpu_ref_get_many+0x240/0x240
[  404.947000]  ? print_usage_bug+0xc0/0xc0
[  404.951063]  ? zap_class+0x640/0x640
[  404.954773]  ? print_usage_bug+0xc0/0xc0
[  404.958828]  ? print_usage_bug+0xc0/0xc0
[  404.963708]  ? zap_class+0x640/0x640
[  404.967414]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.972948]  ? find_held_lock+0x36/0x1c0
[  404.977008]  ? mark_held_locks+0xc7/0x130
[  404.981149]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  404.986241]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  404.991340]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  404.995947]  ? trace_hardirqs_on+0xbd/0x310
[  405.000261]  ? kasan_check_read+0x11/0x20
[  405.004398]  ? ___ratelimit+0x3b4/0x672
[  405.008370]  ? trace_hardirqs_off_caller+0x310/0x310
[  405.013464]  ? trace_hardirqs_on+0x310/0x310
[  405.017868]  ? lock_downgrade+0x900/0x900
[  405.022017]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  405.027111]  ? ___ratelimit+0x3b9/0x672
[  405.031079]  ? idr_get_free+0xf70/0xf70
[  405.035043]  ? find_held_lock+0x36/0x1c0
[  405.039103]  oom_kill_process.cold.27+0x10/0x903
[  405.043854]  ? zap_class+0x640/0x640
[  405.047559]  ? check_preemption_disabled+0x48/0x280
[  405.052580]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  405.057501]  ? kasan_check_read+0x11/0x20
[  405.062639]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.067919]  ? oom_evaluate_task+0x540/0x540
[  405.072325]  ? find_held_lock+0x36/0x1c0
[  405.076386]  ? out_of_memory+0x974/0x1430
[  405.080529]  ? lock_downgrade+0x900/0x900
[  405.084683]  ? check_preemption_disabled+0x48/0x280
[  405.089713]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  405.094634]  ? kasan_check_read+0x11/0x20
[  405.098770]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.104127]  ? rcu_softirq_qs+0x20/0x20
[  405.108096]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.113618]  ? oom_evaluate_task+0x302/0x540
[  405.118021]  out_of_memory+0xa84/0x1430
[  405.121994]  ? oom_killer_disable+0x3a0/0x3a0
[  405.126480]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  405.131421]  ? __ww_mutex_check_waiters+0x160/0x160
[  405.136449]  __alloc_pages_slowpath+0x2354/0x2e10
[  405.141311]  ? warn_alloc+0x120/0x120
[  405.145103]  ? mark_held_locks+0x130/0x130
[  405.149334]  ? find_get_entry+0xaae/0x1120
[  405.153566]  ? filemap_map_pages+0x1a20/0x1a20
[  405.158142]  ? zap_class+0x640/0x640
[  405.162332]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.167862]  ? check_preemption_disabled+0x48/0x280
[  405.172876]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.178433]  ? should_fail+0x22d/0xd01
[  405.182327]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  405.187425]  ? zap_class+0x640/0x640
[  405.191149]  ? __lock_is_held+0xb5/0x140
[  405.195212]  ? mark_held_locks+0x130/0x130
[  405.199441]  ? lock_release+0xa00/0xa00
[  405.203411]  ? perf_trace_sched_process_exec+0x860/0x860
[  405.208856]  ? xa_load+0x2ba/0x460
[  405.212389]  ? lock_downgrade+0x900/0x900
[  405.216540]  ? __might_sleep+0x95/0x190
[  405.220533]  __alloc_pages_nodemask+0xa80/0xde0
[  405.225200]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  405.230388]  ? __page_cache_alloc+0x191/0x5c0
[  405.234880]  ? xa_load+0x2e1/0x460
[  405.238425]  ? xa_clear_mark+0x40/0x40
[  405.242305]  ? zap_class+0x640/0x640
[  405.246018]  ? zap_class+0x640/0x640
[  405.249722]  ? zap_class+0x640/0x640
[  405.253427]  ? __do_page_cache_readahead+0x663/0x810
[  405.258530]  ? find_held_lock+0x36/0x1c0
[  405.263301]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  405.268851]  alloc_pages_current+0x173/0x350
[  405.273258]  __page_cache_alloc+0x38c/0x5c0
[  405.277590]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  405.282510]  ? kasan_check_read+0x11/0x20
[  405.286664]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.291937]  ? generic_perform_write+0x6a0/0x6a0
[  405.296692]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.302234]  ? check_preemption_disabled+0x48/0x280
[  405.307273]  filemap_fault+0x1595/0x25f0
[  405.311339]  ? __lock_page_or_retry+0xa00/0xa00
[  405.316004]  ? mark_held_locks+0x130/0x130
[  405.320241]  ? filemap_map_pages+0xd6b/0x1a20
[  405.324730]  ? lock_downgrade+0x900/0x900
[  405.328874]  ? check_preemption_disabled+0x48/0x280
[  405.333912]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  405.338834]  ? kasan_check_read+0x11/0x20
[  405.342974]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.348242]  ? rcu_softirq_qs+0x20/0x20
[  405.352220]  ? filemap_map_pages+0xd92/0x1a20
[  405.356723]  ? find_get_entries_tag+0x1400/0x1400
[  405.362362]  ? debug_object_destroy+0x2b0/0x2b0
[  405.367028]  ? lock_pi_update_atomic+0x150/0x150
[  405.371777]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.377318]  ? lock_acquire+0x1ed/0x520
[  405.381288]  ? ext4_filemap_fault+0x7a/0xad
[  405.385604]  ? lock_release+0xa00/0xa00
[  405.389568]  ? perf_trace_sched_process_exec+0x860/0x860
[  405.395011]  ? print_usage_bug+0xc0/0xc0
[  405.399088]  ? print_usage_bug+0xc0/0xc0
[  405.403151]  ? down_read+0x8d/0x120
[  405.406771]  ? ext4_filemap_fault+0x7a/0xad
[  405.411098]  ? __down_interruptible+0x700/0x700
[  405.415767]  ext4_filemap_fault+0x82/0xad
[  405.419909]  __do_fault+0x100/0x6b0
[  405.423533]  ? pmd_devmap_trans_unstable+0x220/0x220
[  405.428631]  ? mark_held_locks+0x130/0x130
[  405.432889]  ? mark_held_locks+0x130/0x130
[  405.437114]  ? do_raw_spin_trylock+0x270/0x270
[  405.441691]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.447235]  __handle_mm_fault+0x3ea0/0x5be0
[  405.451632]  ? perf_trace_lock+0x7a0/0x7a0
[  405.455862]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  405.461491]  ? __switch_to_asm+0x34/0x70
[  405.465539]  ? __switch_to_asm+0x34/0x70
[  405.469601]  ? zap_class+0x640/0x640
[  405.473310]  ? zap_class+0x640/0x640
[  405.477014]  ? __x64_sys_futex+0x53e/0x6a0
[  405.481248]  ? find_held_lock+0x36/0x1c0
[  405.485310]  ? handle_mm_fault+0x42a/0xc70
[  405.489536]  ? lock_downgrade+0x900/0x900
[  405.493676]  ? check_preemption_disabled+0x48/0x280
[  405.498697]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  405.503619]  ? kasan_check_read+0x11/0x20
[  405.507757]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.513024]  ? rcu_softirq_qs+0x20/0x20
[  405.516990]  ? trace_hardirqs_off_caller+0x310/0x310
[  405.522085]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.527617]  ? check_preemption_disabled+0x48/0x280
[  405.532639]  handle_mm_fault+0x54f/0xc70
[  405.536693]  ? __handle_mm_fault+0x5be0/0x5be0
[  405.541272]  ? find_vma+0x34/0x190
[  405.544806]  __do_page_fault+0x5e8/0xe60
[  405.548864]  ? trace_hardirqs_off+0xb8/0x310
[  405.553284]  do_page_fault+0xf2/0x7e0
[  405.557077]  ? vmalloc_sync_all+0x30/0x30
[  405.561690]  ? error_entry+0x70/0xd0
[  405.565424]  ? trace_hardirqs_off_caller+0xbb/0x310
[  405.570427]  ? trace_hardirqs_on_caller+0xc0/0x310
[  405.575363]  ? syscall_return_slowpath+0x5e0/0x5e0
[  405.580283]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  405.585122]  ? trace_hardirqs_on_caller+0x310/0x310
[  405.590132]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  405.595577]  ? prepare_exit_to_usermode+0x291/0x3b0
[  405.600587]  ? page_fault+0x8/0x30
[  405.604123]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  405.608958]  ? page_fault+0x8/0x30
[  405.612499]  page_fault+0x1e/0x30
[  405.615941] RIP: 0033:0x45ddf3
[  405.619134] Code: Bad RIP value.
[  405.622485] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  405.627836] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  405.635196] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  405.642453] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  405.649707] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  405.656965] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  405.664741] warn_alloc_show_mem: 1 callbacks suppressed
[  405.664750] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  405.664751] Mem-Info:
[  405.664780] active_anon:54141 inactive_anon:292 isolated_anon:0
[  405.664780]  active_file:12 inactive_file:13 isolated_file:0
[  405.664780]  unevictable:0 dirty:0 writeback:0 unstable:0
[  405.664780]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  405.664780]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  405.664780]  free:13705 free_pcp:178 free_cma:0
[  405.670109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  405.676872] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  405.679255] Call Trace:
[  405.712194] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  405.721537]  dump_stack+0x244/0x39d
[  405.749166] lowmem_reserve[]: 0 2818 6321 6321
[  405.751763]  ? dump_stack_print_info.cold.1+0x20/0x20
[  405.778913] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  405.782545]  warn_alloc.cold.116+0xb7/0x1bd
[  405.787081] lowmem_reserve[]: 0 0 3503 3503
[  405.792254]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  405.819724] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  405.824036]  ? lock_downgrade+0x900/0x900
[  405.828328] lowmem_reserve[]: 0 0 0 0
[  405.833251]  ? trace_hardirqs_off+0xb8/0x310
[  405.862828] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  405.866979]  ? trace_hardirqs_off+0xb8/0x310
[  405.870754] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  405.875187]  __alloc_pages_slowpath+0x26e8/0x2e10
[  405.888671] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  405.893087]  ? warn_alloc+0x120/0x120
[  405.908296] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  405.913118]  ? warn_alloc+0x120/0x120
[  405.927305] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  405.931287]  ? warn_alloc+0x120/0x120
[  405.940090] 366 total pagecache pages
[  405.943878]  ? print_usage_bug+0xc0/0xc0
[  405.952428] 0 pages in swap cache
[  405.956205]  ? __alloc_pages_slowpath+0x26e8/0x2e10
[  405.960452] Swap cache stats: add 0, delete 0, find 0/0
[  405.960459] Free swap  = 0kB
[  405.964507]  ? print_usage_bug+0xc0/0xc0
[  405.967927] Total swap = 0kB
[  405.972926]  ? print_usage_bug+0xc0/0xc0
[  405.978258] 1965979 pages RAM
[  405.981264]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.985291] 0 pages HighMem/MovableOnly
[  405.988296]  ? should_fail+0x22d/0xd01
[  405.992328] 342854 pages reserved
[  405.995420]  ? mark_held_locks+0x130/0x130
[  406.000928] 0 pages cma reserved
[  406.004891]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  406.008803] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  406.012185]  ? __lock_acquire+0x62f/0x4c20
[  406.012201]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  406.012214]  ? __lock_acquire+0x62f/0x4c20
[  406.016489] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  406.019788]  ? should_fail+0x22d/0xd01
[  406.024861] syz-fuzzer cpuset=/ mems_allowed=0
[  406.031360]  ? print_usage_bug+0xc0/0xc0
[  406.067915]  ? mark_held_locks+0x130/0x130
[  406.072148]  ? mark_held_locks+0x130/0x130
[  406.076393]  ? zap_class+0x640/0x640
[  406.080096]  ? ret_from_fork+0x3a/0x50
[  406.083980]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.089512]  ? check_preemption_disabled+0x48/0x280
[  406.094530]  ? __lock_is_held+0xb5/0x140
[  406.098589]  __alloc_pages_nodemask+0xa80/0xde0
[  406.103251]  ? zap_class+0x640/0x640
[  406.106978]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  406.112003]  ? find_held_lock+0x36/0x1c0
[  406.116059]  ? ____cache_alloc_node+0x1c7/0x1e0
[  406.120719]  ? lock_downgrade+0x900/0x900
[  406.124875]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.130425]  cache_grow_begin+0xa5/0x8c0
[  406.134478]  ? do_raw_spin_unlock+0xa7/0x330
[  406.138884]  fallback_alloc+0x204/0x2e0
[  406.142866]  ____cache_alloc_node+0x1c7/0x1e0
[  406.147359]  kmem_cache_alloc_node+0xe3/0x730
[  406.151855]  ? mark_held_locks+0xc7/0x130
[  406.156004]  __alloc_skb+0x119/0x770
[  406.159997]  ? netdev_alloc_frag+0x1f0/0x1f0
[  406.164393]  ? do_raw_spin_trylock+0x270/0x270
[  406.168966]  ? kmem_cache_alloc_trace+0x353/0x750
[  406.173810]  ? queue_work_on+0x12c/0x1e0
[  406.177885]  ? switchdev_port_obj_del+0xdc/0x440
[  406.182635]  ? switchdev_trans_item_enqueue+0x260/0x260
[  406.187999]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  406.193018]  __br_mdb_notify+0x4ff/0x15d0
[  406.197192]  ? __br_mdb_add+0x7f0/0x7f0
[  406.201167]  ? zap_class+0x640/0x640
[  406.204899]  ? br_multicast_group_expired+0x96/0x610
[  406.209995]  ? lock_downgrade+0x900/0x900
[  406.214139]  br_mdb_notify+0x310/0x410
[  406.218019]  ? br_mdb_dump+0x27b0/0x27b0
[  406.222078]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.227614]  br_multicast_group_expired+0x1bc/0x610
[  406.232634]  ? br_mdb_free+0x80/0x80
[  406.236351]  call_timer_fn+0x272/0x920
[  406.240236]  ? br_mdb_free+0x80/0x80
[  406.243942]  ? process_timeout+0x40/0x40
[  406.248002]  ? __run_timers+0x7da/0xc70
[  406.251972]  ? _raw_spin_unlock_irq+0x27/0x80
[  406.256458]  ? _raw_spin_unlock_irq+0x27/0x80
[  406.261265]  ? br_mdb_free+0x80/0x80
[  406.264969]  ? lockdep_hardirqs_on+0x296/0x5b0
[  406.269651]  ? trace_hardirqs_on+0xbd/0x310
[  406.273964]  ? kasan_check_read+0x11/0x20
[  406.278101]  ? __run_timers+0x7da/0xc70
[  406.282065]  ? trace_hardirqs_off_caller+0x310/0x310
[  406.287164]  ? br_mdb_free+0x80/0x80
[  406.290878]  ? br_mdb_free+0x80/0x80
[  406.294584]  __run_timers+0x7e5/0xc70
[  406.298387]  ? timer_fixup_init+0x70/0x70
[  406.302525]  ? _raw_spin_unlock_irq+0x27/0x80
[  406.307013]  ? _raw_spin_unlock_irq+0x27/0x80
[  406.311500]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  406.316080]  ? trace_hardirqs_on+0xbd/0x310
[  406.320391]  ? kasan_check_read+0x11/0x20
[  406.324532]  ? finish_task_switch+0x1f4/0x910
[  406.329023]  ? trace_hardirqs_off_caller+0x310/0x310
[  406.334118]  ? compat_start_thread+0x80/0x80
[  406.338536]  ? pvclock_read_flags+0x160/0x160
[  406.343021]  ? __switch_to_asm+0x34/0x70
[  406.347077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.352606]  ? check_preemption_disabled+0x48/0x280
[  406.357620]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  406.363476]  ? rcu_pm_notify+0xc0/0xc0
[  406.367363]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.372897]  ? check_preemption_disabled+0x48/0x280
[  406.377910]  run_timer_softirq+0x52/0xb0
[  406.381963]  ? rcu_read_lock_sched_held+0x14f/0x180
[  406.386973]  __do_softirq+0x308/0xb7e
[  406.390769]  ? trace_hardirqs_on_caller+0xc0/0x310
[  406.395693]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  406.400787]  ? trace_hardirqs_on+0x310/0x310
[  406.405198]  ? schedule+0x108/0x460
[  406.408837]  ? trace_hardirqs_off+0xb8/0x310
[  406.413241]  ? smpboot_thread_fn+0x68b/0xa00
[  406.417645]  ? trace_hardirqs_on+0x310/0x310
[  406.422047]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.427580]  ? check_preemption_disabled+0x48/0x280
[  406.432592]  ? takeover_tasklets+0xa90/0xa90
[  406.436992]  run_ksoftirqd+0x5e/0x100
[  406.440783]  smpboot_thread_fn+0x68b/0xa00
[  406.445040]  ? sort_range+0x30/0x30
[  406.448661]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  406.453755]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.459549]  ? __kthread_parkme+0xfb/0x1a0
[  406.463780]  ? sort_range+0x30/0x30
[  406.467406]  kthread+0x35a/0x440
[  406.470767]  ? kthread_stop+0x900/0x900
[  406.474755]  ret_from_fork+0x3a/0x50
[  406.478491] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  406.478651] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  406.485413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  406.495698] ksoftirqd/0 cpuset=/ mems_allowed=0
[  406.505031] Call Trace:
[  406.512237]  <IRQ>
[  406.514382]  dump_stack+0x244/0x39d
[  406.518007]  ? dump_stack_print_info.cold.1+0x20/0x20
[  406.523197]  warn_alloc.cold.116+0xb7/0x1bd
[  406.527513]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  406.532366]  ? lock_downgrade+0x900/0x900
[  406.536509]  ? trace_hardirqs_off+0xb8/0x310
[  406.540916]  ? trace_hardirqs_off+0xb8/0x310
[  406.545329]  __alloc_pages_slowpath+0x26e8/0x2e10
[  406.550190]  ? warn_alloc+0x120/0x120
[  406.553986]  ? print_usage_bug+0xc0/0xc0
[  406.558048]  ? warn_alloc+0x120/0x120
[  406.562333]  ? warn_alloc+0x120/0x120
[  406.566129]  ? print_usage_bug+0xc0/0xc0
[  406.570183]  ? print_usage_bug+0xc0/0xc0
[  406.574232]  ? __lock_acquire+0x62f/0x4c20
[  406.578464]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.583989]  ? should_fail+0x22d/0xd01
[  406.587873]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  406.592970]  ? __lock_acquire+0x62f/0x4c20
[  406.597197]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  406.602290]  ? __lock_acquire+0x62f/0x4c20
[  406.606520]  ? should_fail+0x22d/0xd01
[  406.610394]  ? find_held_lock+0x36/0x1c0
[  406.614540]  ? mark_held_locks+0x130/0x130
[  406.618770]  ? mark_held_locks+0x130/0x130
[  406.623000]  ? zap_class+0x640/0x640
[  406.626706]  ? zap_class+0x640/0x640
[  406.630415]  ? print_usage_bug+0xc0/0xc0
[  406.634495]  ? do_raw_spin_unlock+0xa7/0x330
[  406.638895]  ? zap_class+0x640/0x640
[  406.642614]  ? print_usage_bug+0xc0/0xc0
[  406.646665]  ? wq_watchdog_touch+0x9c/0xfe
[  406.650905]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.656436]  ? check_preemption_disabled+0x48/0x280
[  406.662195]  ? __lock_is_held+0xb5/0x140
[  406.666254]  __alloc_pages_nodemask+0xa80/0xde0
[  406.670918]  ? zap_class+0x640/0x640
[  406.674633]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  406.679665]  ? find_held_lock+0x36/0x1c0
[  406.683743]  ? ____cache_alloc_node+0x1c7/0x1e0
[  406.688418]  ? lock_downgrade+0x900/0x900
[  406.692566]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.698101]  cache_grow_begin+0xa5/0x8c0
[  406.702156]  ? do_raw_spin_unlock+0xa7/0x330
[  406.706563]  fallback_alloc+0x204/0x2e0
[  406.710532]  ____cache_alloc_node+0x1c7/0x1e0
[  406.715022]  kmem_cache_alloc_node+0xe3/0x730
[  406.719508]  ? ipv6_get_ifaddr+0x42e/0x620
[  406.723744]  __alloc_skb+0x119/0x770
[  406.727457]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.732725]  ? netdev_alloc_frag+0x1f0/0x1f0
[  406.737123]  ? lock_downgrade+0x900/0x900
[  406.741288]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.746824]  ? refcount_sub_and_test_checked+0x203/0x310
[  406.752272]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  406.757730]  ? addrconf_rs_timer+0x690/0x690
[  406.762831]  ndisc_alloc_skb+0x144/0x340
[  406.766890]  ndisc_send_rs+0x331/0x6e0
[  406.770773]  addrconf_rs_timer+0x314/0x690
[  406.775010]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.779243]  call_timer_fn+0x272/0x920
[  406.783116]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.787338]  ? process_timeout+0x40/0x40
[  406.791400]  ? mark_held_locks+0xc7/0x130
[  406.795539]  ? _raw_spin_unlock_irq+0x27/0x80
[  406.800024]  ? _raw_spin_unlock_irq+0x27/0x80
[  406.804510]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.808735]  ? lockdep_hardirqs_on+0x296/0x5b0
[  406.813312]  ? trace_hardirqs_on+0xbd/0x310
[  406.817629]  ? kasan_check_read+0x11/0x20
[  406.821771]  ? __run_timers+0x7da/0xc70
[  406.825745]  ? trace_hardirqs_off_caller+0x310/0x310
[  406.830844]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.835078]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.839316]  __run_timers+0x7e5/0xc70
[  406.843119]  ? timer_fixup_init+0x70/0x70
[  406.847269]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  406.852282]  ? zap_class+0x640/0x640
[  406.855995]  ? print_usage_bug+0xc0/0xc0
[  406.860795]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  406.865984]  ? find_held_lock+0x36/0x1c0
[  406.870041]  ? zap_class+0x640/0x640
[  406.873753]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.879317]  ? check_preemption_disabled+0x48/0x280
[  406.884339]  ? __lock_is_held+0xb5/0x140
[  406.888408]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.893937]  ? check_preemption_disabled+0x48/0x280
[  406.898954]  run_timer_softirq+0x52/0xb0
[  406.903007]  ? rcu_read_lock_sched_held+0x14f/0x180
[  406.908017]  __do_softirq+0x308/0xb7e
[  406.911813]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  406.916306]  ? lock_downgrade+0x900/0x900
[  406.920462]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  406.925571]  ? pvclock_read_flags+0x160/0x160
[  406.930057]  ? lapic_next_event+0x5a/0x90
[  406.934201]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.939736]  ? kvm_clock_read+0x18/0x30
[  406.943708]  ? kvm_sched_clock_read+0x9/0x20
[  406.948114]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.953643]  ? check_preemption_disabled+0x48/0x280
[  406.958660]  irq_exit+0x17f/0x1c0
[  406.962864]  smp_apic_timer_interrupt+0x1cb/0x760
[  406.967692]  ? smp_reschedule_interrupt+0x109/0x650
[  406.972701]  ? smp_call_function_single_interrupt+0x650/0x650
[  406.978579]  ? interrupt_entry+0xb5/0xc0
[  406.982635]  ? trace_hardirqs_off_caller+0xbb/0x310
[  406.987639]  ? trace_hardirqs_off_caller+0xbb/0x310
[  406.992676]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.997528]  ? trace_hardirqs_on_caller+0x310/0x310
[  407.002537]  ? trace_hardirqs_on_caller+0x310/0x310
[  407.007546]  ? task_prio+0x50/0x50
[  407.011080]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.016610]  ? check_preemption_disabled+0x48/0x280
[  407.021622]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  407.026462]  apic_timer_interrupt+0xf/0x20
[  407.030683]  </IRQ>
[  407.032914] RIP: 0010:dump_stack+0x358/0x39d
[  407.037317] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  407.056207] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  407.064858] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  407.072116] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  407.079379] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  407.086642] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  407.093900] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  407.101173]  ? dump_stack+0x34f/0x39d
[  407.104978]  ? dump_stack_print_info.cold.1+0x20/0x20
[  407.110168]  ? mark_held_locks+0x130/0x130
[  407.114397]  ? mark_held_locks+0x130/0x130
[  407.118628]  dump_header+0x27b/0xf72
[  407.122343]  ? pagefault_out_of_memory+0x197/0x197
[  407.127275]  ? __lock_acquire+0x62f/0x4c20
[  407.131512]  ? percpu_ref_get_many+0x240/0x240
[  407.136092]  ? print_usage_bug+0xc0/0xc0
[  407.140150]  ? zap_class+0x640/0x640
[  407.143862]  ? print_usage_bug+0xc0/0xc0
[  407.147913]  ? print_usage_bug+0xc0/0xc0
[  407.151974]  ? zap_class+0x640/0x640
[  407.155686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.161812]  ? find_held_lock+0x36/0x1c0
[  407.165878]  ? mark_held_locks+0xc7/0x130
[  407.170025]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  407.175121]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  407.180223]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  407.184800]  ? trace_hardirqs_on+0xbd/0x310
[  407.189114]  ? kasan_check_read+0x11/0x20
[  407.193258]  ? ___ratelimit+0x3b4/0x672
[  407.197232]  ? trace_hardirqs_off_caller+0x310/0x310
[  407.202329]  ? trace_hardirqs_on+0x310/0x310
[  407.206747]  ? lock_downgrade+0x900/0x900
[  407.210904]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  407.216013]  ? ___ratelimit+0x3b9/0x672
[  407.219981]  ? idr_get_free+0xf70/0xf70
[  407.223945]  ? find_held_lock+0x36/0x1c0
[  407.228010]  oom_kill_process.cold.27+0x10/0x903
[  407.232766]  ? zap_class+0x640/0x640
[  407.236487]  ? check_preemption_disabled+0x48/0x280
[  407.241514]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  407.246437]  ? kasan_check_read+0x11/0x20
[  407.250579]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.255847]  ? oom_evaluate_task+0x540/0x540
[  407.261197]  ? find_held_lock+0x36/0x1c0
[  407.265261]  ? out_of_memory+0x974/0x1430
[  407.269405]  ? lock_downgrade+0x900/0x900
[  407.273547]  ? check_preemption_disabled+0x48/0x280
[  407.278572]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  407.283501]  ? kasan_check_read+0x11/0x20
[  407.287643]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.292911]  ? rcu_softirq_qs+0x20/0x20
[  407.296884]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.302434]  ? oom_evaluate_task+0x302/0x540
[  407.306839]  out_of_memory+0xa84/0x1430
[  407.310819]  ? oom_killer_disable+0x3a0/0x3a0
[  407.315311]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  407.320237]  ? __ww_mutex_check_waiters+0x160/0x160
[  407.325258]  __alloc_pages_slowpath+0x2354/0x2e10
[  407.330126]  ? warn_alloc+0x120/0x120
[  407.333922]  ? mark_held_locks+0x130/0x130
[  407.338154]  ? find_get_entry+0xaae/0x1120
[  407.342391]  ? filemap_map_pages+0x1a20/0x1a20
[  407.346983]  ? zap_class+0x640/0x640
[  407.350695]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.356225]  ? check_preemption_disabled+0x48/0x280
[  407.362229]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.367765]  ? should_fail+0x22d/0xd01
[  407.371648]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  407.376744]  ? zap_class+0x640/0x640
[  407.380483]  ? __lock_is_held+0xb5/0x140
[  407.384542]  ? mark_held_locks+0x130/0x130
[  407.388776]  ? lock_release+0xa00/0xa00
[  407.392756]  ? perf_trace_sched_process_exec+0x860/0x860
[  407.398201]  ? xa_load+0x2ba/0x460
[  407.401736]  ? lock_downgrade+0x900/0x900
[  407.405886]  ? __might_sleep+0x95/0x190
[  407.409863]  __alloc_pages_nodemask+0xa80/0xde0
[  407.414531]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  407.419544]  ? __page_cache_alloc+0x191/0x5c0
[  407.424029]  ? xa_load+0x2e1/0x460
[  407.427562]  ? xa_clear_mark+0x40/0x40
[  407.431445]  ? zap_class+0x640/0x640
[  407.435159]  ? zap_class+0x640/0x640
[  407.438870]  ? zap_class+0x640/0x640
[  407.442575]  ? __do_page_cache_readahead+0x663/0x810
[  407.447676]  ? find_held_lock+0x36/0x1c0
[  407.451733]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  407.457273]  alloc_pages_current+0x173/0x350
[  407.462502]  __page_cache_alloc+0x38c/0x5c0
[  407.466814]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  407.471735]  ? kasan_check_read+0x11/0x20
[  407.475905]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.481175]  ? generic_perform_write+0x6a0/0x6a0
[  407.485926]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.491454]  ? check_preemption_disabled+0x48/0x280
[  407.496471]  filemap_fault+0x1595/0x25f0
[  407.500535]  ? __lock_page_or_retry+0xa00/0xa00
[  407.505199]  ? mark_held_locks+0x130/0x130
[  407.509438]  ? filemap_map_pages+0xd6b/0x1a20
[  407.513929]  ? lock_downgrade+0x900/0x900
[  407.518071]  ? check_preemption_disabled+0x48/0x280
[  407.523083]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  407.528003]  ? kasan_check_read+0x11/0x20
[  407.532158]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.537426]  ? rcu_softirq_qs+0x20/0x20
[  407.541410]  ? filemap_map_pages+0xd92/0x1a20
[  407.545910]  ? find_get_entries_tag+0x1400/0x1400
[  407.550778]  ? debug_object_destroy+0x2b0/0x2b0
[  407.555444]  ? lock_pi_update_atomic+0x150/0x150
[  407.560845]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.566392]  ? lock_acquire+0x1ed/0x520
[  407.570358]  ? ext4_filemap_fault+0x7a/0xad
[  407.574679]  ? lock_release+0xa00/0xa00
[  407.578646]  ? perf_trace_sched_process_exec+0x860/0x860
[  407.584086]  ? print_usage_bug+0xc0/0xc0
[  407.588142]  ? print_usage_bug+0xc0/0xc0
[  407.592204]  ? down_read+0x8d/0x120
[  407.595821]  ? ext4_filemap_fault+0x7a/0xad
[  407.600136]  ? __down_interruptible+0x700/0x700
[  407.604804]  ext4_filemap_fault+0x82/0xad
[  407.608951]  __do_fault+0x100/0x6b0
[  407.612575]  ? pmd_devmap_trans_unstable+0x220/0x220
[  407.617672]  ? mark_held_locks+0x130/0x130
[  407.621902]  ? mark_held_locks+0x130/0x130
[  407.626130]  ? do_raw_spin_trylock+0x270/0x270
[  407.630739]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.636279]  __handle_mm_fault+0x3ea0/0x5be0
[  407.640680]  ? perf_trace_lock+0x7a0/0x7a0
[  407.644915]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  407.649764]  ? __switch_to_asm+0x34/0x70
[  407.653815]  ? __switch_to_asm+0x34/0x70
[  407.657897]  ? zap_class+0x640/0x640
[  407.662386]  ? zap_class+0x640/0x640
[  407.666100]  ? __x64_sys_futex+0x53e/0x6a0
[  407.670337]  ? find_held_lock+0x36/0x1c0
[  407.674403]  ? handle_mm_fault+0x42a/0xc70
[  407.678643]  ? lock_downgrade+0x900/0x900
[  407.682784]  ? check_preemption_disabled+0x48/0x280
[  407.687800]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  407.692720]  ? kasan_check_read+0x11/0x20
[  407.696868]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.702134]  ? rcu_softirq_qs+0x20/0x20
[  407.706103]  ? trace_hardirqs_off_caller+0x310/0x310
[  407.711201]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.716735]  ? check_preemption_disabled+0x48/0x280
[  407.721760]  handle_mm_fault+0x54f/0xc70
[  407.725818]  ? __handle_mm_fault+0x5be0/0x5be0
[  407.730407]  ? find_vma+0x34/0x190
[  407.733948]  __do_page_fault+0x5e8/0xe60
[  407.738001]  ? trace_hardirqs_off+0xb8/0x310
[  407.742424]  do_page_fault+0xf2/0x7e0
[  407.746216]  ? vmalloc_sync_all+0x30/0x30
[  407.750361]  ? error_entry+0x70/0xd0
[  407.754065]  ? trace_hardirqs_off_caller+0xbb/0x310
[  407.759274]  ? trace_hardirqs_on_caller+0xc0/0x310
[  407.764485]  ? syscall_return_slowpath+0x5e0/0x5e0
[  407.769403]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  407.774247]  ? trace_hardirqs_on_caller+0x310/0x310
[  407.779260]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  407.784706]  ? prepare_exit_to_usermode+0x291/0x3b0
[  407.789720]  ? page_fault+0x8/0x30
[  407.793272]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  407.798108]  ? page_fault+0x8/0x30
[  407.801657]  page_fault+0x1e/0x30
[  407.805104] RIP: 0033:0x45ddf3
[  407.808322] Code: Bad RIP value.
[  407.811678] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  407.817033] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  407.824293] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  407.831555] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  407.838815] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  407.846070] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  407.853344] warn_alloc_show_mem: 1 callbacks suppressed
[  407.853353] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  407.853354] Mem-Info:
[  407.853385] active_anon:54141 inactive_anon:292 isolated_anon:0
[  407.853385]  active_file:12 inactive_file:13 isolated_file:0
[  407.853385]  unevictable:0 dirty:0 writeback:0 unstable:0
[  407.853385]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  407.853385]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  407.853385]  free:13705 free_pcp:178 free_cma:0
[  407.858710] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  407.858724] Call Trace:
[  407.866286] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  407.868681]  dump_stack+0x244/0x39d
[  407.901525] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  407.910961]  ? dump_stack_print_info.cold.1+0x20/0x20
[  407.913512] lowmem_reserve[]: 0 2818 6321 6321
[  407.941410]  warn_alloc.cold.116+0xb7/0x1bd
[  407.945000] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  407.971464]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  407.976619] lowmem_reserve[]: 0 0 3503 3503
[  407.981188]  ? lock_downgrade+0x900/0x900
[  407.985480] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  408.012971]  ? trace_hardirqs_off+0xb8/0x310
[  408.017778] lowmem_reserve[]: 0 0 0 0
[  408.022091]  ? trace_hardirqs_off+0xb8/0x310
[  408.026203] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  408.055184]  __alloc_pages_slowpath+0x26e8/0x2e10
[  408.059873] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  408.063693]  ? warn_alloc+0x120/0x120
[  408.068047] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  408.081556]  ? warn_alloc+0x120/0x120
[  408.086371] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  408.101609]  ? warn_alloc+0x120/0x120
[  408.105385] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  408.119671]  ? print_usage_bug+0xc0/0xc0
[  408.123438] 366 total pagecache pages
[  408.132258]  ? __alloc_pages_slowpath+0x26e8/0x2e10
[  408.136038] 0 pages in swap cache
[  408.144590]  ? print_usage_bug+0xc0/0xc0
[  408.148620] Swap cache stats: add 0, delete 0, find 0/0
[  408.152398]  ? print_usage_bug+0xc0/0xc0
[  408.157381] Free swap  = 0kB
[  408.161110]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.165136] Total swap = 0kB
[  408.170481]  ? should_fail+0x22d/0xd01
[  408.174508] 1965979 pages RAM
[  408.177510]  ? mark_held_locks+0x130/0x130
[  408.183015] 0 pages HighMem/MovableOnly
[  408.186022]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  408.189876] 342854 pages reserved
[  408.192968]  ? __lock_acquire+0x62f/0x4c20
[  408.197172] 0 pages cma reserved
[  408.201132]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  408.206264] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  408.209635]  ? __lock_acquire+0x62f/0x4c20
[  408.209650]  ? should_fail+0x22d/0xd01
[  408.213929] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  408.217211]  ? print_usage_bug+0xc0/0xc0
[  408.222285] syz-fuzzer cpuset=/ mems_allowed=0
[  408.228770]  ? mark_held_locks+0x130/0x130
[  408.260346]  ? mark_held_locks+0x130/0x130
[  408.264584]  ? zap_class+0x640/0x640
[  408.268287]  ? ret_from_fork+0x3a/0x50
[  408.272170]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.277717]  ? check_preemption_disabled+0x48/0x280
[  408.282740]  ? __lock_is_held+0xb5/0x140
[  408.286797]  __alloc_pages_nodemask+0xa80/0xde0
[  408.291471]  ? zap_class+0x640/0x640
[  408.295196]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  408.300211]  ? find_held_lock+0x36/0x1c0
[  408.304290]  ? ____cache_alloc_node+0x1c7/0x1e0
[  408.308952]  ? lock_downgrade+0x900/0x900
[  408.313097]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.318654]  cache_grow_begin+0xa5/0x8c0
[  408.322720]  ? do_raw_spin_unlock+0xa7/0x330
[  408.327128]  fallback_alloc+0x204/0x2e0
[  408.331104]  ____cache_alloc_node+0x1c7/0x1e0
[  408.335597]  kmem_cache_alloc_node+0xe3/0x730
[  408.340085]  ? mark_held_locks+0xc7/0x130
[  408.344235]  __alloc_skb+0x119/0x770
[  408.347946]  ? netdev_alloc_frag+0x1f0/0x1f0
[  408.352350]  ? do_raw_spin_trylock+0x270/0x270
[  408.356928]  ? kmem_cache_alloc_trace+0x353/0x750
[  408.362187]  ? queue_work_on+0x12c/0x1e0
[  408.366250]  ? switchdev_port_obj_del+0xdc/0x440
[  408.371004]  ? switchdev_trans_item_enqueue+0x260/0x260
[  408.376365]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  408.381384]  __br_mdb_notify+0x4ff/0x15d0
[  408.385538]  ? __br_mdb_add+0x7f0/0x7f0
[  408.389515]  ? zap_class+0x640/0x640
[  408.393233]  ? br_multicast_group_expired+0x96/0x610
[  408.398329]  ? lock_downgrade+0x900/0x900
[  408.402474]  br_mdb_notify+0x310/0x410
[  408.406723]  ? br_mdb_dump+0x27b0/0x27b0
[  408.410783]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.416321]  br_multicast_group_expired+0x1bc/0x610
[  408.421337]  ? br_mdb_free+0x80/0x80
[  408.425056]  call_timer_fn+0x272/0x920
[  408.428933]  ? br_mdb_free+0x80/0x80
[  408.432641]  ? process_timeout+0x40/0x40
[  408.436710]  ? __run_timers+0x7da/0xc70
[  408.440686]  ? _raw_spin_unlock_irq+0x27/0x80
[  408.445179]  ? _raw_spin_unlock_irq+0x27/0x80
[  408.449667]  ? br_mdb_free+0x80/0x80
[  408.453384]  ? lockdep_hardirqs_on+0x296/0x5b0
[  408.457960]  ? trace_hardirqs_on+0xbd/0x310
[  408.462573]  ? kasan_check_read+0x11/0x20
[  408.466716]  ? __run_timers+0x7da/0xc70
[  408.470775]  ? trace_hardirqs_off_caller+0x310/0x310
[  408.475878]  ? br_mdb_free+0x80/0x80
[  408.479588]  ? br_mdb_free+0x80/0x80
[  408.483305]  __run_timers+0x7e5/0xc70
[  408.487107]  ? timer_fixup_init+0x70/0x70
[  408.491246]  ? _raw_spin_unlock_irq+0x27/0x80
[  408.495733]  ? _raw_spin_unlock_irq+0x27/0x80
[  408.500223]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  408.504814]  ? trace_hardirqs_on+0xbd/0x310
[  408.509132]  ? kasan_check_read+0x11/0x20
[  408.513271]  ? finish_task_switch+0x1f4/0x910
[  408.517758]  ? trace_hardirqs_off_caller+0x310/0x310
[  408.522867]  ? compat_start_thread+0x80/0x80
[  408.527289]  ? pvclock_read_flags+0x160/0x160
[  408.531775]  ? __switch_to_asm+0x34/0x70
[  408.535833]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.541364]  ? check_preemption_disabled+0x48/0x280
[  408.546382]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  408.551916]  ? rcu_pm_notify+0xc0/0xc0
[  408.555800]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.561695]  ? check_preemption_disabled+0x48/0x280
[  408.566709]  run_timer_softirq+0x52/0xb0
[  408.570778]  ? rcu_read_lock_sched_held+0x14f/0x180
[  408.575795]  __do_softirq+0x308/0xb7e
[  408.579590]  ? trace_hardirqs_on_caller+0xc0/0x310
[  408.584515]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  408.589609]  ? trace_hardirqs_on+0x310/0x310
[  408.594013]  ? schedule+0x108/0x460
[  408.597638]  ? trace_hardirqs_off+0xb8/0x310
[  408.602040]  ? smpboot_thread_fn+0x68b/0xa00
[  408.606453]  ? trace_hardirqs_on+0x310/0x310
[  408.610854]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.616386]  ? check_preemption_disabled+0x48/0x280
[  408.621392]  ? takeover_tasklets+0xa90/0xa90
[  408.625795]  run_ksoftirqd+0x5e/0x100
[  408.629583]  smpboot_thread_fn+0x68b/0xa00
[  408.633809]  ? sort_range+0x30/0x30
[  408.637429]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  408.642526]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.648057]  ? __kthread_parkme+0xfb/0x1a0
[  408.652288]  ? sort_range+0x30/0x30
[  408.655904]  kthread+0x35a/0x440
[  408.659614]  ? kthread_stop+0x900/0x900
[  408.663576]  ret_from_fork+0x3a/0x50
[  408.667324] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  408.667467] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  408.674263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  408.684551] ksoftirqd/0 cpuset=/ mems_allowed=0
[  408.693883] Call Trace:
[  408.701091]  <IRQ>
[  408.703247]  dump_stack+0x244/0x39d
[  408.706871]  ? dump_stack_print_info.cold.1+0x20/0x20
[  408.712062]  warn_alloc.cold.116+0xb7/0x1bd
[  408.716382]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  408.721221]  ? lock_downgrade+0x900/0x900
[  408.725367]  ? trace_hardirqs_off+0xb8/0x310
[  408.729773]  ? trace_hardirqs_off+0xb8/0x310
[  408.734194]  __alloc_pages_slowpath+0x26e8/0x2e10
[  408.739052]  ? warn_alloc+0x120/0x120
[  408.742845]  ? print_usage_bug+0xc0/0xc0
[  408.746900]  ? warn_alloc+0x120/0x120
[  408.750708]  ? warn_alloc+0x120/0x120
[  408.754501]  ? print_usage_bug+0xc0/0xc0
[  408.758553]  ? kvm_clock_read+0x18/0x30
[  408.763526]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  408.768536]  ? print_usage_bug+0xc0/0xc0
[  408.772589]  ? __lock_acquire+0x62f/0x4c20
[  408.776816]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.782345]  ? should_fail+0x22d/0xd01
[  408.786313]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.791583]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  408.796688]  ? __lock_acquire+0x62f/0x4c20
[  408.800920]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  408.806032]  ? __lock_acquire+0x62f/0x4c20
[  408.810258]  ? should_fail+0x22d/0xd01
[  408.814130]  ? rcu_irq_exit+0x1a2/0x390
[  408.818107]  ? mark_held_locks+0x130/0x130
[  408.822342]  ? mark_held_locks+0x130/0x130
[  408.826580]  ? mark_held_locks+0xc7/0x130
[  408.830718]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  408.835723]  ? zap_class+0x640/0x640
[  408.839424]  ? print_usage_bug+0xc0/0xc0
[  408.843483]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.849015]  ? check_preemption_disabled+0x48/0x280
[  408.854035]  ? __lock_is_held+0xb5/0x140
[  408.858094]  __alloc_pages_nodemask+0xa80/0xde0
[  408.863537]  ? zap_class+0x640/0x640
[  408.867247]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  408.872272]  ? find_held_lock+0x36/0x1c0
[  408.876334]  ? ____cache_alloc_node+0x1c7/0x1e0
[  408.881000]  ? lock_downgrade+0x900/0x900
[  408.885150]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.890692]  cache_grow_begin+0xa5/0x8c0
[  408.894742]  ? do_raw_spin_unlock+0xa7/0x330
[  408.899236]  fallback_alloc+0x204/0x2e0
[  408.903210]  ____cache_alloc_node+0x1c7/0x1e0
[  408.907704]  kmem_cache_alloc_node+0xe3/0x730
[  408.912203]  ? ipv6_get_ifaddr+0x42e/0x620
[  408.916440]  __alloc_skb+0x119/0x770
[  408.920145]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.925426]  ? netdev_alloc_frag+0x1f0/0x1f0
[  408.929825]  ? lock_downgrade+0x900/0x900
[  408.933970]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.939501]  ? refcount_sub_and_test_checked+0x203/0x310
[  408.944959]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  408.950489]  ? addrconf_rs_timer+0x690/0x690
[  408.954901]  ndisc_alloc_skb+0x144/0x340
[  408.959691]  ndisc_send_rs+0x331/0x6e0
[  408.963580]  addrconf_rs_timer+0x314/0x690
[  408.967811]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.972064]  call_timer_fn+0x272/0x920
[  408.975950]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.980185]  ? process_timeout+0x40/0x40
[  408.984252]  ? mark_held_locks+0xc7/0x130
[  408.988397]  ? _raw_spin_unlock_irq+0x27/0x80
[  408.992880]  ? _raw_spin_unlock_irq+0x27/0x80
[  408.997365]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.001590]  ? lockdep_hardirqs_on+0x296/0x5b0
[  409.006173]  ? trace_hardirqs_on+0xbd/0x310
[  409.010492]  ? kasan_check_read+0x11/0x20
[  409.014629]  ? __run_timers+0x7da/0xc70
[  409.018601]  ? trace_hardirqs_off_caller+0x310/0x310
[  409.023705]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.027948]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.032187]  __run_timers+0x7e5/0xc70
[  409.035989]  ? timer_fixup_init+0x70/0x70
[  409.040131]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  409.045156]  ? zap_class+0x640/0x640
[  409.048883]  ? print_usage_bug+0xc0/0xc0
[  409.052942]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  409.058128]  ? find_held_lock+0x36/0x1c0
[  409.063169]  ? zap_class+0x640/0x640
[  409.066878]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.072407]  ? check_preemption_disabled+0x48/0x280
[  409.077423]  ? __lock_is_held+0xb5/0x140
[  409.081476]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.087005]  ? check_preemption_disabled+0x48/0x280
[  409.092015]  run_timer_softirq+0x52/0xb0
[  409.096067]  ? rcu_read_lock_sched_held+0x14f/0x180
[  409.101094]  __do_softirq+0x308/0xb7e
[  409.104888]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  409.109371]  ? lock_downgrade+0x900/0x900
[  409.113533]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  409.118634]  ? pvclock_read_flags+0x160/0x160
[  409.123132]  ? lapic_next_event+0x5a/0x90
[  409.127278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.132815]  ? kvm_clock_read+0x18/0x30
[  409.136795]  ? kvm_sched_clock_read+0x9/0x20
[  409.141206]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.146731]  ? check_preemption_disabled+0x48/0x280
[  409.151752]  irq_exit+0x17f/0x1c0
[  409.155199]  smp_apic_timer_interrupt+0x1cb/0x760
[  409.160806]  ? smp_reschedule_interrupt+0x109/0x650
[  409.165836]  ? smp_call_function_single_interrupt+0x650/0x650
[  409.171715]  ? interrupt_entry+0xb5/0xc0
[  409.175769]  ? trace_hardirqs_off_caller+0xbb/0x310
[  409.180775]  ? trace_hardirqs_off_caller+0xbb/0x310
[  409.185784]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.190622]  ? trace_hardirqs_on_caller+0x310/0x310
[  409.195669]  ? trace_hardirqs_on_caller+0x310/0x310
[  409.200676]  ? task_prio+0x50/0x50
[  409.204212]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.209747]  ? check_preemption_disabled+0x48/0x280
[  409.214758]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.219603]  apic_timer_interrupt+0xf/0x20
[  409.223830]  </IRQ>
[  409.226080] RIP: 0010:dump_stack+0x358/0x39d
[  409.230486] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  409.249381] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  409.257077] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  409.265133] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  409.272413] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  409.279674] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  409.286939] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  409.294216]  ? dump_stack+0x34f/0x39d
[  409.298021]  ? dump_stack_print_info.cold.1+0x20/0x20
[  409.303208]  ? mark_held_locks+0x130/0x130
[  409.307434]  ? mark_held_locks+0x130/0x130
[  409.311663]  dump_header+0x27b/0xf72
[  409.315381]  ? pagefault_out_of_memory+0x197/0x197
[  409.320309]  ? __lock_acquire+0x62f/0x4c20
[  409.324540]  ? percpu_ref_get_many+0x240/0x240
[  409.329117]  ? print_usage_bug+0xc0/0xc0
[  409.333178]  ? zap_class+0x640/0x640
[  409.336890]  ? print_usage_bug+0xc0/0xc0
[  409.341115]  ? print_usage_bug+0xc0/0xc0
[  409.345172]  ? zap_class+0x640/0x640
[  409.348879]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.354411]  ? find_held_lock+0x36/0x1c0
[  409.358474]  ? mark_held_locks+0xc7/0x130
[  409.363405]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  409.368503]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  409.373599]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  409.378183]  ? trace_hardirqs_on+0xbd/0x310
[  409.382502]  ? kasan_check_read+0x11/0x20
[  409.386650]  ? ___ratelimit+0x3b4/0x672
[  409.390626]  ? trace_hardirqs_off_caller+0x310/0x310
[  409.395725]  ? trace_hardirqs_on+0x310/0x310
[  409.400140]  ? lock_downgrade+0x900/0x900
[  409.404283]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  409.409374]  ? ___ratelimit+0x3b9/0x672
[  409.413345]  ? idr_get_free+0xf70/0xf70
[  409.417318]  ? find_held_lock+0x36/0x1c0
[  409.421396]  oom_kill_process.cold.27+0x10/0x903
[  409.426152]  ? zap_class+0x640/0x640
[  409.429859]  ? check_preemption_disabled+0x48/0x280
[  409.434869]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  409.439786]  ? kasan_check_read+0x11/0x20
[  409.443922]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.449188]  ? oom_evaluate_task+0x540/0x540
[  409.453593]  ? find_held_lock+0x36/0x1c0
[  409.457656]  ? out_of_memory+0x974/0x1430
[  409.462411]  ? lock_downgrade+0x900/0x900
[  409.466553]  ? check_preemption_disabled+0x48/0x280
[  409.471583]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  409.476521]  ? kasan_check_read+0x11/0x20
[  409.480661]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.485944]  ? rcu_softirq_qs+0x20/0x20
[  409.489907]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.495431]  ? oom_evaluate_task+0x302/0x540
[  409.499843]  out_of_memory+0xa84/0x1430
[  409.503814]  ? oom_killer_disable+0x3a0/0x3a0
[  409.508302]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  409.513227]  ? __ww_mutex_check_waiters+0x160/0x160
[  409.518245]  __alloc_pages_slowpath+0x2354/0x2e10
[  409.523109]  ? warn_alloc+0x120/0x120
[  409.526904]  ? mark_held_locks+0x130/0x130
[  409.531141]  ? find_get_entry+0xaae/0x1120
[  409.535376]  ? filemap_map_pages+0x1a20/0x1a20
[  409.539948]  ? zap_class+0x640/0x640
[  409.543656]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.549197]  ? check_preemption_disabled+0x48/0x280
[  409.554218]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.560354]  ? should_fail+0x22d/0xd01
[  409.564239]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  409.569337]  ? zap_class+0x640/0x640
[  409.573065]  ? __lock_is_held+0xb5/0x140
[  409.577128]  ? mark_held_locks+0x130/0x130
[  409.581362]  ? lock_release+0xa00/0xa00
[  409.585331]  ? perf_trace_sched_process_exec+0x860/0x860
[  409.590782]  ? xa_load+0x2ba/0x460
[  409.594316]  ? lock_downgrade+0x900/0x900
[  409.598465]  ? __might_sleep+0x95/0x190
[  409.602436]  __alloc_pages_nodemask+0xa80/0xde0
[  409.607103]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  409.612117]  ? __page_cache_alloc+0x191/0x5c0
[  409.616616]  ? xa_load+0x2e1/0x460
[  409.620149]  ? xa_clear_mark+0x40/0x40
[  409.624032]  ? zap_class+0x640/0x640
[  409.627745]  ? zap_class+0x640/0x640
[  409.631448]  ? zap_class+0x640/0x640
[  409.635155]  ? __do_page_cache_readahead+0x663/0x810
[  409.640273]  ? find_held_lock+0x36/0x1c0
[  409.644332]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  409.649866]  alloc_pages_current+0x173/0x350
[  409.654287]  __page_cache_alloc+0x38c/0x5c0
[  409.658617]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  409.664262]  ? kasan_check_read+0x11/0x20
[  409.668407]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.673691]  ? generic_perform_write+0x6a0/0x6a0
[  409.678442]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.683974]  ? check_preemption_disabled+0x48/0x280
[  409.688989]  filemap_fault+0x1595/0x25f0
[  409.693053]  ? __lock_page_or_retry+0xa00/0xa00
[  409.697715]  ? mark_held_locks+0x130/0x130
[  409.701951]  ? filemap_map_pages+0xd6b/0x1a20
[  409.706441]  ? lock_downgrade+0x900/0x900
[  409.710582]  ? check_preemption_disabled+0x48/0x280
[  409.715624]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  409.720550]  ? kasan_check_read+0x11/0x20
[  409.724691]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.729963]  ? rcu_softirq_qs+0x20/0x20
[  409.733945]  ? filemap_map_pages+0xd92/0x1a20
[  409.738444]  ? find_get_entries_tag+0x1400/0x1400
[  409.743300]  ? debug_object_destroy+0x2b0/0x2b0
[  409.747979]  ? lock_pi_update_atomic+0x150/0x150
[  409.752730]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.758272]  ? lock_acquire+0x1ed/0x520
[  409.763319]  ? ext4_filemap_fault+0x7a/0xad
[  409.767651]  ? lock_release+0xa00/0xa00
[  409.771622]  ? perf_trace_sched_process_exec+0x860/0x860
[  409.777065]  ? print_usage_bug+0xc0/0xc0
[  409.781127]  ? print_usage_bug+0xc0/0xc0
[  409.785193]  ? down_read+0x8d/0x120
[  409.788810]  ? ext4_filemap_fault+0x7a/0xad
[  409.793129]  ? __down_interruptible+0x700/0x700
[  409.797799]  ext4_filemap_fault+0x82/0xad
[  409.801942]  __do_fault+0x100/0x6b0
[  409.805571]  ? pmd_devmap_trans_unstable+0x220/0x220
[  409.810694]  ? mark_held_locks+0x130/0x130
[  409.814926]  ? mark_held_locks+0x130/0x130
[  409.819154]  ? do_raw_spin_trylock+0x270/0x270
[  409.823738]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.829288]  __handle_mm_fault+0x3ea0/0x5be0
[  409.833720]  ? perf_trace_lock+0x7a0/0x7a0
[  409.837957]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  409.842801]  ? __switch_to_asm+0x34/0x70
[  409.846854]  ? __switch_to_asm+0x34/0x70
[  409.850916]  ? zap_class+0x640/0x640
[  409.854622]  ? zap_class+0x640/0x640
[  409.858326]  ? __x64_sys_futex+0x53e/0x6a0
[  409.863558]  ? find_held_lock+0x36/0x1c0
[  409.867628]  ? handle_mm_fault+0x42a/0xc70
[  409.871856]  ? lock_downgrade+0x900/0x900
[  409.876008]  ? check_preemption_disabled+0x48/0x280
[  409.881019]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  409.885941]  ? kasan_check_read+0x11/0x20
[  409.890081]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.895353]  ? rcu_softirq_qs+0x20/0x20
[  409.899325]  ? trace_hardirqs_off_caller+0x310/0x310
[  409.904423]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.909964]  ? check_preemption_disabled+0x48/0x280
[  409.914983]  handle_mm_fault+0x54f/0xc70
[  409.919044]  ? __handle_mm_fault+0x5be0/0x5be0
[  409.923624]  ? find_vma+0x34/0x190
[  409.927168]  __do_page_fault+0x5e8/0xe60
[  409.931735]  ? trace_hardirqs_off+0xb8/0x310
[  409.936153]  do_page_fault+0xf2/0x7e0
[  409.939950]  ? vmalloc_sync_all+0x30/0x30
[  409.944092]  ? error_entry+0x70/0xd0
[  409.947802]  ? trace_hardirqs_off_caller+0xbb/0x310
[  409.952811]  ? trace_hardirqs_on_caller+0xc0/0x310
[  409.957735]  ? syscall_return_slowpath+0x5e0/0x5e0
[  409.963456]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.968294]  ? trace_hardirqs_on_caller+0x310/0x310
[  409.973299]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  409.978745]  ? prepare_exit_to_usermode+0x291/0x3b0
[  409.983750]  ? page_fault+0x8/0x30
[  409.987287]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.992146]  ? page_fault+0x8/0x30
[  409.995682]  page_fault+0x1e/0x30
[  409.999126] RIP: 0033:0x45ddf3
[  410.002327] Code: Bad RIP value.
[  410.005685] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  410.011038] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  410.018297] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  410.025555] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  410.032822] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  410.040080] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  410.047366] warn_alloc_show_mem: 1 callbacks suppressed
[  410.047375] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  410.047377] Mem-Info:
[  410.047408] active_anon:54141 inactive_anon:292 isolated_anon:0
[  410.047408]  active_file:12 inactive_file:13 isolated_file:0
[  410.047408]  unevictable:0 dirty:0 writeback:0 unstable:0
[  410.047408]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  410.047408]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  410.047408]  free:13705 free_pcp:178 free_cma:0
[  410.052733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  410.052740] Call Trace:
[  410.060433] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  410.062827]  dump_stack+0x244/0x39d
[  410.095671] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  410.105017]  ? dump_stack_print_info.cold.1+0x20/0x20
[  410.107578] lowmem_reserve[]: 0 2818 6321 6321
[  410.135248]  warn_alloc.cold.116+0xb7/0x1bd
[  410.138836] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  410.165225]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  410.170382] lowmem_reserve[]: 0 0 3503 3503
[  410.174960]  ? lock_downgrade+0x900/0x900
[  410.179248] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  410.206736]  ? trace_hardirqs_off+0xb8/0x310
[  410.211543] lowmem_reserve[]: 0 0 0 0
[  410.215857]  ? trace_hardirqs_off+0xb8/0x310
[  410.219973] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  410.249023]  __alloc_pages_slowpath+0x26e8/0x2e10
[  410.253397] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  410.257201]  ? warn_alloc+0x120/0x120
[  410.262286] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  410.275819]  ? warn_alloc+0x120/0x120
[  410.280647] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  410.295887]  ? warn_alloc+0x120/0x120
[  410.299679] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  410.313875]  ? print_usage_bug+0xc0/0xc0
[  410.317642] 366 total pagecache pages
[  410.326464]  ? __alloc_pages_slowpath+0x26e8/0x2e10
[  410.330242] 0 pages in swap cache
[  410.338812]  ? print_usage_bug+0xc0/0xc0
[  410.342846] Swap cache stats: add 0, delete 0, find 0/0
[  410.346629]  ? print_usage_bug+0xc0/0xc0
[  410.351614] Free swap  = 0kB
[  410.355064]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.359881] Total swap = 0kB
[  410.359889] 1965979 pages RAM
[  410.365322]  ? should_fail+0x22d/0xd01
[  410.369352] 0 pages HighMem/MovableOnly
[  410.372358]  ? mark_held_locks+0x130/0x130
[  410.377862] 342854 pages reserved
[  410.380866]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  410.383939] 0 pages cma reserved
[  410.387812]  ? __lock_acquire+0x62f/0x4c20
[  410.391832] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  410.395976]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  410.399780] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  410.404513]  ? __lock_acquire+0x62f/0x4c20
[  410.404529]  ? should_fail+0x22d/0xd01
[  410.407988] syz-fuzzer cpuset=/ mems_allowed=0
[  410.412204]  ? print_usage_bug+0xc0/0xc0
[  410.412227]  ? mark_held_locks+0x130/0x130
[  410.454931]  ? mark_held_locks+0x130/0x130
[  410.459472]  ? zap_class+0x640/0x640
[  410.463190]  ? ret_from_fork+0x3a/0x50
[  410.467074]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.472604]  ? check_preemption_disabled+0x48/0x280
[  410.477618]  ? __lock_is_held+0xb5/0x140
[  410.481682]  __alloc_pages_nodemask+0xa80/0xde0
[  410.486348]  ? zap_class+0x640/0x640
[  410.490061]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  410.495079]  ? find_held_lock+0x36/0x1c0
[  410.499140]  ? ____cache_alloc_node+0x1c7/0x1e0
[  410.503799]  ? lock_downgrade+0x900/0x900
[  410.507951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.513484]  cache_grow_begin+0xa5/0x8c0
[  410.517535]  ? do_raw_spin_unlock+0xa7/0x330
[  410.521978]  fallback_alloc+0x204/0x2e0
[  410.525948]  ____cache_alloc_node+0x1c7/0x1e0
[  410.530523]  kmem_cache_alloc_node+0xe3/0x730
[  410.535014]  ? mark_held_locks+0xc7/0x130
[  410.539168]  __alloc_skb+0x119/0x770
[  410.542883]  ? netdev_alloc_frag+0x1f0/0x1f0
[  410.547287]  ? do_raw_spin_trylock+0x270/0x270
[  410.551859]  ? kmem_cache_alloc_trace+0x353/0x750
[  410.556693]  ? queue_work_on+0x12c/0x1e0
[  410.561017]  ? switchdev_port_obj_del+0xdc/0x440
[  410.565768]  ? switchdev_trans_item_enqueue+0x260/0x260
[  410.571125]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  410.576143]  __br_mdb_notify+0x4ff/0x15d0
[  410.580297]  ? __br_mdb_add+0x7f0/0x7f0
[  410.584275]  ? zap_class+0x640/0x640
[  410.587993]  ? br_multicast_group_expired+0x96/0x610
[  410.593088]  ? lock_downgrade+0x900/0x900
[  410.597237]  br_mdb_notify+0x310/0x410
[  410.601123]  ? br_mdb_dump+0x27b0/0x27b0
[  410.605180]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.610715]  br_multicast_group_expired+0x1bc/0x610
[  410.615725]  ? br_mdb_free+0x80/0x80
[  410.619442]  call_timer_fn+0x272/0x920
[  410.623341]  ? br_mdb_free+0x80/0x80
[  410.627047]  ? process_timeout+0x40/0x40
[  410.631109]  ? __run_timers+0x7da/0xc70
[  410.635080]  ? _raw_spin_unlock_irq+0x27/0x80
[  410.639571]  ? _raw_spin_unlock_irq+0x27/0x80
[  410.644054]  ? br_mdb_free+0x80/0x80
[  410.647763]  ? lockdep_hardirqs_on+0x296/0x5b0
[  410.652339]  ? trace_hardirqs_on+0xbd/0x310
[  410.656651]  ? kasan_check_read+0x11/0x20
[  410.661124]  ? __run_timers+0x7da/0xc70
[  410.665092]  ? trace_hardirqs_off_caller+0x310/0x310
[  410.670187]  ? br_mdb_free+0x80/0x80
[  410.673894]  ? br_mdb_free+0x80/0x80
[  410.677601]  __run_timers+0x7e5/0xc70
[  410.681400]  ? timer_fixup_init+0x70/0x70
[  410.685558]  ? _raw_spin_unlock_irq+0x27/0x80
[  410.690046]  ? _raw_spin_unlock_irq+0x27/0x80
[  410.694545]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  410.699147]  ? trace_hardirqs_on+0xbd/0x310
[  410.703456]  ? kasan_check_read+0x11/0x20
[  410.707595]  ? finish_task_switch+0x1f4/0x910
[  410.712084]  ? trace_hardirqs_off_caller+0x310/0x310
[  410.717180]  ? compat_start_thread+0x80/0x80
[  410.721597]  ? pvclock_read_flags+0x160/0x160
[  410.726080]  ? __switch_to_asm+0x34/0x70
[  410.730135]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.735665]  ? check_preemption_disabled+0x48/0x280
[  410.740681]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  410.746216]  ? rcu_pm_notify+0xc0/0xc0
[  410.750103]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.755653]  ? check_preemption_disabled+0x48/0x280
[  410.760957]  run_timer_softirq+0x52/0xb0
[  410.765014]  ? rcu_read_lock_sched_held+0x14f/0x180
[  410.770026]  __do_softirq+0x308/0xb7e
[  410.773822]  ? trace_hardirqs_on_caller+0xc0/0x310
[  410.778743]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  410.783838]  ? trace_hardirqs_on+0x310/0x310
[  410.788257]  ? schedule+0x108/0x460
[  410.791891]  ? trace_hardirqs_off+0xb8/0x310
[  410.796290]  ? smpboot_thread_fn+0x68b/0xa00
[  410.800688]  ? trace_hardirqs_on+0x310/0x310
[  410.805089]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.810619]  ? check_preemption_disabled+0x48/0x280
[  410.815630]  ? takeover_tasklets+0xa90/0xa90
[  410.820031]  run_ksoftirqd+0x5e/0x100
[  410.823844]  smpboot_thread_fn+0x68b/0xa00
[  410.828075]  ? sort_range+0x30/0x30
[  410.831693]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  410.836791]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.842318]  ? __kthread_parkme+0xfb/0x1a0
[  410.846557]  ? sort_range+0x30/0x30
[  410.850173]  kthread+0x35a/0x440
[  410.853539]  ? kthread_stop+0x900/0x900
[  410.857510]  ret_from_fork+0x3a/0x50
[  410.861547] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  410.861689] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  410.868468] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  410.878752] ksoftirqd/0 cpuset=/ mems_allowed=0
[  410.888090] Call Trace:
[  410.895295]  <IRQ>
[  410.897443]  dump_stack+0x244/0x39d
[  410.901073]  ? dump_stack_print_info.cold.1+0x20/0x20
[  410.906266]  warn_alloc.cold.116+0xb7/0x1bd
[  410.910579]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  410.915420]  ? lock_downgrade+0x900/0x900
[  410.919567]  ? trace_hardirqs_off+0xb8/0x310
[  410.923970]  ? trace_hardirqs_off+0xb8/0x310
[  410.928372]  ? noop_count+0x40/0x40
[  410.931999]  __alloc_pages_slowpath+0x26e8/0x2e10
[  410.936852]  ? check_usage+0x1aa/0x790
[  410.940736]  ? warn_alloc+0x120/0x120
[  410.944562]  ? warn_alloc+0x120/0x120
[  410.948365]  ? __bfs+0xb0/0x780
[  410.951640]  ? print_bfs_bug+0x80/0x80
[  410.955525]  ? warn_alloc+0x120/0x120
[  410.960272]  ? print_usage_bug+0xc0/0xc0
[  410.964418]  ? mark_held_locks+0x130/0x130
[  410.968653]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.974182]  ? should_fail+0x22d/0xd01
[  410.978061]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  410.983942]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  410.989077]  ? __lock_acquire+0x62f/0x4c20
[  410.993311]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  410.998420]  ? should_fail+0x22d/0xd01
[  411.002306]  ? mark_held_locks+0x130/0x130
[  411.006535]  ? mark_held_locks+0x130/0x130
[  411.010762]  ? zap_class+0x640/0x640
[  411.014472]  ? zap_class+0x640/0x640
[  411.018185]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  411.024062]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.029595]  ? check_preemption_disabled+0x48/0x280
[  411.034614]  ? __lock_is_held+0xb5/0x140
[  411.038672]  __alloc_pages_nodemask+0xa80/0xde0
[  411.043336]  ? zap_class+0x640/0x640
[  411.047049]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  411.052065]  ? find_held_lock+0x36/0x1c0
[  411.056122]  ? ____cache_alloc_node+0x1c7/0x1e0
[  411.061559]  ? lock_downgrade+0x900/0x900
[  411.065710]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.071245]  cache_grow_begin+0xa5/0x8c0
[  411.075297]  ? do_raw_spin_unlock+0xa7/0x330
[  411.079704]  fallback_alloc+0x204/0x2e0
[  411.083678]  ____cache_alloc_node+0x1c7/0x1e0
[  411.088170]  kmem_cache_alloc_node+0xe3/0x730
[  411.092659]  ? mark_held_locks+0xc7/0x130
[  411.096835]  __alloc_skb+0x119/0x770
[  411.100550]  ? netdev_alloc_frag+0x1f0/0x1f0
[  411.104953]  ? do_raw_spin_trylock+0x270/0x270
[  411.109544]  ? kmem_cache_alloc_trace+0x353/0x750
[  411.114384]  ? queue_work_on+0x12c/0x1e0
[  411.118442]  ? switchdev_port_obj_del+0xdc/0x440
[  411.123194]  ? switchdev_trans_item_enqueue+0x260/0x260
[  411.128559]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  411.133578]  __br_mdb_notify+0x4ff/0x15d0
[  411.137718]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  411.142833]  ? __br_mdb_add+0x7f0/0x7f0
[  411.146807]  ? mark_held_locks+0x130/0x130
[  411.151045]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  411.156143]  ? debug_object_assert_init+0x368/0x4b0
[  411.161898]  ? trace_hardirqs_off_caller+0x310/0x310
[  411.166996]  ? debug_object_init_on_stack+0x20/0x20
[  411.172006]  ? zap_class+0x640/0x640
[  411.175719]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.181258]  br_mdb_notify+0x310/0x410
[  411.185144]  ? br_mdb_dump+0x27b0/0x27b0
[  411.189208]  br_multicast_del_pg+0x3df/0x790
[  411.193615]  ? br_mdb_ip_get+0x940/0x940
[  411.197669]  ? rwlock_bug.part.2+0x90/0x90
[  411.201900]  ? __lock_is_held+0xb5/0x140
[  411.205964]  br_multicast_port_group_expired+0x189/0x1e0
[  411.211408]  call_timer_fn+0x272/0x920
[  411.215289]  ? br_multicast_del_pg+0x790/0x790
[  411.219868]  ? process_timeout+0x40/0x40
[  411.223928]  ? mark_held_locks+0xc7/0x130
[  411.228067]  ? _raw_spin_unlock_irq+0x27/0x80
[  411.232552]  ? _raw_spin_unlock_irq+0x27/0x80
[  411.237056]  ? br_multicast_del_pg+0x790/0x790
[  411.241631]  ? lockdep_hardirqs_on+0x296/0x5b0
[  411.246205]  ? trace_hardirqs_on+0xbd/0x310
[  411.250531]  ? kasan_check_read+0x11/0x20
[  411.254668]  ? __run_timers+0x7da/0xc70
[  411.259058]  ? trace_hardirqs_off_caller+0x310/0x310
[  411.264157]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.268390]  ? br_multicast_del_pg+0x790/0x790
[  411.272962]  __run_timers+0x7e5/0xc70
[  411.276768]  ? timer_fixup_init+0x70/0x70
[  411.280914]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  411.285920]  ? zap_class+0x640/0x640
[  411.289633]  ? print_usage_bug+0xc0/0xc0
[  411.293688]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  411.298875]  ? find_held_lock+0x36/0x1c0
[  411.302933]  ? zap_class+0x640/0x640
[  411.306644]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.312199]  ? check_preemption_disabled+0x48/0x280
[  411.317215]  ? __lock_is_held+0xb5/0x140
[  411.321268]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.326799]  ? check_preemption_disabled+0x48/0x280
[  411.331812]  run_timer_softirq+0x52/0xb0
[  411.335870]  ? rcu_read_lock_sched_held+0x14f/0x180
[  411.340878]  __do_softirq+0x308/0xb7e
[  411.344677]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  411.349166]  ? lock_downgrade+0x900/0x900
[  411.353315]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  411.358422]  ? pvclock_read_flags+0x160/0x160
[  411.363441]  ? lapic_next_event+0x5a/0x90
[  411.367583]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.373119]  ? kvm_clock_read+0x18/0x30
[  411.377102]  ? kvm_sched_clock_read+0x9/0x20
[  411.381511]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.387046]  ? check_preemption_disabled+0x48/0x280
[  411.392068]  irq_exit+0x17f/0x1c0
[  411.395517]  smp_apic_timer_interrupt+0x1cb/0x760
[  411.400352]  ? smp_reschedule_interrupt+0x109/0x650
[  411.405363]  ? smp_call_function_single_interrupt+0x650/0x650
[  411.411236]  ? interrupt_entry+0xb5/0xc0
[  411.415292]  ? trace_hardirqs_off_caller+0xbb/0x310
[  411.420302]  ? trace_hardirqs_off_caller+0xbb/0x310
[  411.425307]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  411.430143]  ? trace_hardirqs_on_caller+0x310/0x310
[  411.435152]  ? trace_hardirqs_on_caller+0x310/0x310
[  411.440160]  ? task_prio+0x50/0x50
[  411.443695]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.449226]  ? check_preemption_disabled+0x48/0x280
[  411.454239]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  411.459887]  apic_timer_interrupt+0xf/0x20
[  411.464112]  </IRQ>
[  411.466349] RIP: 0010:dump_stack+0x358/0x39d
[  411.470769] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  411.489660] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  411.497357] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  411.504615] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  411.511890] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  411.519176] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  411.526432] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  411.533707]  ? dump_stack+0x34f/0x39d
[  411.537523]  ? dump_stack_print_info.cold.1+0x20/0x20
[  411.542709]  ? mark_held_locks+0x130/0x130
[  411.546933]  ? mark_held_locks+0x130/0x130
[  411.551162]  dump_header+0x27b/0xf72
[  411.554878]  ? pagefault_out_of_memory+0x197/0x197
[  411.560100]  ? __lock_acquire+0x62f/0x4c20
[  411.564331]  ? percpu_ref_get_many+0x240/0x240
[  411.568910]  ? print_usage_bug+0xc0/0xc0
[  411.572971]  ? zap_class+0x640/0x640
[  411.576685]  ? print_usage_bug+0xc0/0xc0
[  411.580738]  ? print_usage_bug+0xc0/0xc0
[  411.584798]  ? zap_class+0x640/0x640
[  411.588512]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.594048]  ? find_held_lock+0x36/0x1c0
[  411.598113]  ? mark_held_locks+0xc7/0x130
[  411.602255]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  411.607350]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  411.612446]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  411.617031]  ? trace_hardirqs_on+0xbd/0x310
[  411.621344]  ? kasan_check_read+0x11/0x20
[  411.625493]  ? ___ratelimit+0x3b4/0x672
[  411.629460]  ? trace_hardirqs_off_caller+0x310/0x310
[  411.634574]  ? trace_hardirqs_on+0x310/0x310
[  411.638978]  ? lock_downgrade+0x900/0x900
[  411.643123]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  411.648235]  ? ___ratelimit+0x3b9/0x672
[  411.652206]  ? idr_get_free+0xf70/0xf70
[  411.656170]  ? find_held_lock+0x36/0x1c0
[  411.660793]  oom_kill_process.cold.27+0x10/0x903
[  411.665556]  ? zap_class+0x640/0x640
[  411.669267]  ? check_preemption_disabled+0x48/0x280
[  411.674274]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  411.679194]  ? kasan_check_read+0x11/0x20
[  411.683332]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.688617]  ? oom_evaluate_task+0x540/0x540
[  411.693017]  ? find_held_lock+0x36/0x1c0
[  411.697076]  ? out_of_memory+0x974/0x1430
[  411.701220]  ? lock_downgrade+0x900/0x900
[  411.705356]  ? check_preemption_disabled+0x48/0x280
[  411.710377]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  411.715300]  ? kasan_check_read+0x11/0x20
[  411.719436]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.724711]  ? rcu_softirq_qs+0x20/0x20
[  411.728681]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.734206]  ? oom_evaluate_task+0x302/0x540
[  411.738609]  out_of_memory+0xa84/0x1430
[  411.742583]  ? oom_killer_disable+0x3a0/0x3a0
[  411.747086]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  411.752015]  ? __ww_mutex_check_waiters+0x160/0x160
[  411.757033]  __alloc_pages_slowpath+0x2354/0x2e10
[  411.762421]  ? warn_alloc+0x120/0x120
[  411.766212]  ? mark_held_locks+0x130/0x130
[  411.770440]  ? find_get_entry+0xaae/0x1120
[  411.774680]  ? filemap_map_pages+0x1a20/0x1a20
[  411.779262]  ? zap_class+0x640/0x640
[  411.782975]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.788510]  ? check_preemption_disabled+0x48/0x280
[  411.793518]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.799044]  ? should_fail+0x22d/0xd01
[  411.802925]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  411.808017]  ? zap_class+0x640/0x640
[  411.811765]  ? __lock_is_held+0xb5/0x140
[  411.815827]  ? mark_held_locks+0x130/0x130
[  411.820056]  ? lock_release+0xa00/0xa00
[  411.824026]  ? perf_trace_sched_process_exec+0x860/0x860
[  411.829479]  ? xa_load+0x2ba/0x460
[  411.833012]  ? lock_downgrade+0x900/0x900
[  411.837158]  ? __might_sleep+0x95/0x190
[  411.841126]  __alloc_pages_nodemask+0xa80/0xde0
[  411.845797]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  411.850818]  ? __page_cache_alloc+0x191/0x5c0
[  411.855304]  ? xa_load+0x2e1/0x460
[  411.859789]  ? xa_clear_mark+0x40/0x40
[  411.863675]  ? zap_class+0x640/0x640
[  411.867392]  ? zap_class+0x640/0x640
[  411.871099]  ? zap_class+0x640/0x640
[  411.874805]  ? __do_page_cache_readahead+0x663/0x810
[  411.879903]  ? find_held_lock+0x36/0x1c0
[  411.883981]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  411.889518]  alloc_pages_current+0x173/0x350
[  411.893924]  __page_cache_alloc+0x38c/0x5c0
[  411.898240]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  411.903159]  ? kasan_check_read+0x11/0x20
[  411.907542]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.912818]  ? generic_perform_write+0x6a0/0x6a0
[  411.917565]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.923093]  ? check_preemption_disabled+0x48/0x280
[  411.928578]  filemap_fault+0x1595/0x25f0
[  411.932643]  ? __lock_page_or_retry+0xa00/0xa00
[  411.937304]  ? mark_held_locks+0x130/0x130
[  411.941539]  ? filemap_map_pages+0xd6b/0x1a20
[  411.946040]  ? lock_downgrade+0x900/0x900
[  411.950206]  ? check_preemption_disabled+0x48/0x280
[  411.955218]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  411.960808]  ? kasan_check_read+0x11/0x20
[  411.964955]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.970228]  ? rcu_softirq_qs+0x20/0x20
[  411.974211]  ? filemap_map_pages+0xd92/0x1a20
[  411.978710]  ? find_get_entries_tag+0x1400/0x1400
[  411.983556]  ? debug_object_destroy+0x2b0/0x2b0
[  411.988221]  ? lock_pi_update_atomic+0x150/0x150
[  411.992994]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.998538]  ? lock_acquire+0x1ed/0x520
[  412.002507]  ? ext4_filemap_fault+0x7a/0xad
[  412.006835]  ? lock_release+0xa00/0xa00
[  412.010817]  ? perf_trace_sched_process_exec+0x860/0x860
[  412.016260]  ? print_usage_bug+0xc0/0xc0
[  412.020334]  ? print_usage_bug+0xc0/0xc0
[  412.024401]  ? down_read+0x8d/0x120
[  412.028017]  ? ext4_filemap_fault+0x7a/0xad
[  412.032336]  ? __down_interruptible+0x700/0x700
[  412.037008]  ext4_filemap_fault+0x82/0xad
[  412.041168]  __do_fault+0x100/0x6b0
[  412.044794]  ? pmd_devmap_trans_unstable+0x220/0x220
[  412.049892]  ? mark_held_locks+0x130/0x130
[  412.054119]  ? mark_held_locks+0x130/0x130
[  412.058347]  ? do_raw_spin_trylock+0x270/0x270
[  412.063266]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.068799]  __handle_mm_fault+0x3ea0/0x5be0
[  412.073201]  ? perf_trace_lock+0x7a0/0x7a0
[  412.077439]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  412.082288]  ? __switch_to_asm+0x34/0x70
[  412.086339]  ? __switch_to_asm+0x34/0x70
[  412.090405]  ? zap_class+0x640/0x640
[  412.094111]  ? zap_class+0x640/0x640
[  412.097821]  ? __x64_sys_futex+0x53e/0x6a0
[  412.102053]  ? find_held_lock+0x36/0x1c0
[  412.106113]  ? handle_mm_fault+0x42a/0xc70
[  412.110337]  ? lock_downgrade+0x900/0x900
[  412.114476]  ? check_preemption_disabled+0x48/0x280
[  412.119490]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  412.124413]  ? kasan_check_read+0x11/0x20
[  412.128566]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.133934]  ? rcu_softirq_qs+0x20/0x20
[  412.137901]  ? trace_hardirqs_off_caller+0x310/0x310
[  412.142992]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.148519]  ? check_preemption_disabled+0x48/0x280
[  412.153533]  handle_mm_fault+0x54f/0xc70
[  412.157586]  ? __handle_mm_fault+0x5be0/0x5be0
[  412.162968]  ? find_vma+0x34/0x190
[  412.166504]  __do_page_fault+0x5e8/0xe60
[  412.170571]  ? trace_hardirqs_off+0xb8/0x310
[  412.174984]  do_page_fault+0xf2/0x7e0
[  412.178796]  ? vmalloc_sync_all+0x30/0x30
[  412.182949]  ? error_entry+0x70/0xd0
[  412.186663]  ? trace_hardirqs_off_caller+0xbb/0x310
[  412.191674]  ? trace_hardirqs_on_caller+0xc0/0x310
[  412.196599]  ? syscall_return_slowpath+0x5e0/0x5e0
[  412.201525]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.206361]  ? trace_hardirqs_on_caller+0x310/0x310
[  412.211372]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  412.216822]  ? prepare_exit_to_usermode+0x291/0x3b0
[  412.221831]  ? page_fault+0x8/0x30
[  412.225367]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.230205]  ? page_fault+0x8/0x30
[  412.233738]  page_fault+0x1e/0x30
[  412.237181] RIP: 0033:0x45ddf3
[  412.240375] Code: Bad RIP value.
[  412.243729] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  412.249091] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  412.256349] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  412.264438] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  412.271699] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  412.278961] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  412.286340] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  412.286356] warn_alloc_show_mem: 1 callbacks suppressed
[  412.286360] Mem-Info:
[  412.293087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  412.298448] active_anon:54141 inactive_anon:292 isolated_anon:0
[  412.298448]  active_file:12 inactive_file:13 isolated_file:0
[  412.298448]  unevictable:0 dirty:0 writeback:0 unstable:0
[  412.298448]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  412.298448]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  412.298448]  free:13705 free_pcp:178 free_cma:0
[  412.300817] Call Trace:
[  412.310185] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  412.343040]  dump_stack+0x244/0x39d
[  412.345593] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  412.373531]  ? dump_stack_print_info.cold.1+0x20/0x20
[  412.377128] lowmem_reserve[]: 0 2818 6321 6321
[  412.403230]  warn_alloc.cold.116+0xb7/0x1bd
[  412.408381] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  412.412948]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  412.417241] lowmem_reserve[]: 0 0 3503 3503
[  412.444721]  ? lock_downgrade+0x900/0x900
[  412.449532] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  412.453842]  ? trace_hardirqs_off+0xb8/0x310
[  412.457955] lowmem_reserve[]: 0 0 0 0
[  412.487203]  ? trace_hardirqs_off+0xb8/0x310
[  412.491577] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  412.495370]  __alloc_pages_slowpath+0x26e8/0x2e10
[  412.499739] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  412.513281]  ? warn_alloc+0x120/0x120
[  412.518060] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  412.533305]  ? warn_alloc+0x120/0x120
[  412.537078] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  412.551278]  ? warn_alloc+0x120/0x120
[  412.555064] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  412.564185]  ? print_usage_bug+0xc0/0xc0
[  412.567954] 366 total pagecache pages
[  412.576516]  ? __alloc_pages_slowpath+0x26e8/0x2e10
[  412.580555] 0 pages in swap cache
[  412.584331]  ? print_usage_bug+0xc0/0xc0
[  412.589320] Swap cache stats: add 0, delete 0, find 0/0
[  412.592756]  ? print_usage_bug+0xc0/0xc0
[  412.596790] Free swap  = 0kB
[  412.602145]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.606172] Total swap = 0kB
[  412.609177]  ? should_fail+0x22d/0xd01
[  412.614681] 1965979 pages RAM
[  412.617681]  ? mark_held_locks+0x130/0x130
[  412.621542] 0 pages HighMem/MovableOnly
[  412.624629]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  412.628829] 342854 pages reserved
[  412.632787]  ? __lock_acquire+0x62f/0x4c20
[  412.637859] 0 pages cma reserved
[  412.641299]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  412.646181] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  412.648858]  ? __lock_acquire+0x62f/0x4c20
[  412.648873]  ? should_fail+0x22d/0xd01
[  412.653950] syz-fuzzer cpuset=/ mems_allowed=0
[  412.664460]  ? print_usage_bug+0xc0/0xc0
[  412.664484]  ? mark_held_locks+0x130/0x130
[  412.685469]  ? mark_held_locks+0x130/0x130
[  412.689718]  ? zap_class+0x640/0x640
[  412.693433]  ? ret_from_fork+0x3a/0x50
[  412.697316]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.702867]  ? check_preemption_disabled+0x48/0x280
[  412.707885]  ? __lock_is_held+0xb5/0x140
[  412.711947]  __alloc_pages_nodemask+0xa80/0xde0
[  412.716613]  ? zap_class+0x640/0x640
[  412.720325]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  412.725369]  ? find_held_lock+0x36/0x1c0
[  412.729442]  ? ____cache_alloc_node+0x1c7/0x1e0
[  412.734107]  ? lock_downgrade+0x900/0x900
[  412.738257]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.743795]  cache_grow_begin+0xa5/0x8c0
[  412.747848]  ? do_raw_spin_unlock+0xa7/0x330
[  412.752259]  fallback_alloc+0x204/0x2e0
[  412.756234]  ____cache_alloc_node+0x1c7/0x1e0
[  412.761068]  kmem_cache_alloc_node+0xe3/0x730
[  412.765555]  ? mark_held_locks+0xc7/0x130
[  412.769705]  __alloc_skb+0x119/0x770
[  412.773436]  ? netdev_alloc_frag+0x1f0/0x1f0
[  412.777837]  ? do_raw_spin_trylock+0x270/0x270
[  412.782425]  ? kmem_cache_alloc_trace+0x353/0x750
[  412.787268]  ? queue_work_on+0x12c/0x1e0
[  412.791330]  ? switchdev_port_obj_del+0xdc/0x440
[  412.796084]  ? switchdev_trans_item_enqueue+0x260/0x260
[  412.801468]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  412.806500]  __br_mdb_notify+0x4ff/0x15d0
[  412.810658]  ? __br_mdb_add+0x7f0/0x7f0
[  412.814631]  ? zap_class+0x640/0x640
[  412.818348]  ? br_multicast_group_expired+0x96/0x610
[  412.823446]  ? lock_downgrade+0x900/0x900
[  412.827593]  br_mdb_notify+0x310/0x410
[  412.831474]  ? br_mdb_dump+0x27b0/0x27b0
[  412.835532]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.841068]  br_multicast_group_expired+0x1bc/0x610
[  412.846084]  ? br_mdb_free+0x80/0x80
[  412.849805]  call_timer_fn+0x272/0x920
[  412.853683]  ? br_mdb_free+0x80/0x80
[  412.857386]  ? process_timeout+0x40/0x40
[  412.861736]  ? __run_timers+0x7da/0xc70
[  412.865705]  ? _raw_spin_unlock_irq+0x27/0x80
[  412.870193]  ? _raw_spin_unlock_irq+0x27/0x80
[  412.874683]  ? br_mdb_free+0x80/0x80
[  412.878388]  ? lockdep_hardirqs_on+0x296/0x5b0
[  412.882975]  ? trace_hardirqs_on+0xbd/0x310
[  412.887307]  ? kasan_check_read+0x11/0x20
[  412.891442]  ? __run_timers+0x7da/0xc70
[  412.895425]  ? trace_hardirqs_off_caller+0x310/0x310
[  412.900528]  ? br_mdb_free+0x80/0x80
[  412.904240]  ? br_mdb_free+0x80/0x80
[  412.907943]  __run_timers+0x7e5/0xc70
[  412.911744]  ? timer_fixup_init+0x70/0x70
[  412.915883]  ? _raw_spin_unlock_irq+0x27/0x80
[  412.920366]  ? _raw_spin_unlock_irq+0x27/0x80
[  412.924858]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  412.929439]  ? trace_hardirqs_on+0xbd/0x310
[  412.933752]  ? kasan_check_read+0x11/0x20
[  412.937907]  ? finish_task_switch+0x1f4/0x910
[  412.942413]  ? trace_hardirqs_off_caller+0x310/0x310
[  412.947509]  ? compat_start_thread+0x80/0x80
[  412.951925]  ? pvclock_read_flags+0x160/0x160
[  412.956416]  ? __switch_to_asm+0x34/0x70
[  412.960804]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.966339]  ? check_preemption_disabled+0x48/0x280
[  412.971359]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  412.976893]  ? rcu_pm_notify+0xc0/0xc0
[  412.980771]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.986298]  ? check_preemption_disabled+0x48/0x280
[  412.991310]  run_timer_softirq+0x52/0xb0
[  412.995362]  ? rcu_read_lock_sched_held+0x14f/0x180
[  413.000389]  __do_softirq+0x308/0xb7e
[  413.004188]  ? trace_hardirqs_on_caller+0xc0/0x310
[  413.009110]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  413.014203]  ? trace_hardirqs_on+0x310/0x310
[  413.018609]  ? schedule+0x108/0x460
[  413.022241]  ? trace_hardirqs_off+0xb8/0x310
[  413.026641]  ? smpboot_thread_fn+0x68b/0xa00
[  413.031043]  ? trace_hardirqs_on+0x310/0x310
[  413.035449]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.040981]  ? check_preemption_disabled+0x48/0x280
[  413.045999]  ? takeover_tasklets+0xa90/0xa90
[  413.050412]  run_ksoftirqd+0x5e/0x100
[  413.054205]  smpboot_thread_fn+0x68b/0xa00
[  413.058449]  ? sort_range+0x30/0x30
[  413.062338]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  413.067433]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.072961]  ? __kthread_parkme+0xfb/0x1a0
[  413.077192]  ? sort_range+0x30/0x30
[  413.080902]  kthread+0x35a/0x440
[  413.084264]  ? kthread_stop+0x900/0x900
[  413.088237]  ret_from_fork+0x3a/0x50
[  413.091995] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  413.092126] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  413.098921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  413.109203] ksoftirqd/0 cpuset=/ mems_allowed=0
[  413.118546] Call Trace:
[  413.125759]  <IRQ>
[  413.127914]  dump_stack+0x244/0x39d
[  413.131537]  ? dump_stack_print_info.cold.1+0x20/0x20
[  413.136732]  warn_alloc.cold.116+0xb7/0x1bd
[  413.141049]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  413.145910]  ? lock_downgrade+0x900/0x900
[  413.150063]  ? trace_hardirqs_off+0xb8/0x310
[  413.154473]  ? trace_hardirqs_off+0xb8/0x310
[  413.159690]  __alloc_pages_slowpath+0x26e8/0x2e10
[  413.164557]  ? warn_alloc+0x120/0x120
[  413.168355]  ? warn_alloc+0x120/0x120
[  413.172155]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  413.177169]  ? warn_alloc+0x120/0x120
[  413.180964]  ? print_usage_bug+0xc0/0xc0
[  413.185023]  ? print_usage_bug+0xc0/0xc0
[  413.189079]  ? check_usage+0x1aa/0x790
[  413.192962]  ? check_usage+0x1aa/0x790
[  413.196860]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.202511]  ? should_fail+0x22d/0xd01
[  413.206400]  ? check_usage_forwards+0x3d0/0x3d0
[  413.211066]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  413.216249]  ? __lock_acquire+0x62f/0x4c20
[  413.220479]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  413.225577]  ? should_fail+0x22d/0xd01
[  413.229466]  ? mark_held_locks+0x130/0x130
[  413.233697]  ? mark_held_locks+0x130/0x130
[  413.237922]  ? print_usage_bug+0xc0/0xc0
[  413.241980]  ? find_held_lock+0x36/0x1c0
[  413.246034]  ? zap_class+0x640/0x640
[  413.249749]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.255283]  ? check_preemption_disabled+0x48/0x280
[  413.260599]  ? __lock_is_held+0xb5/0x140
[  413.264662]  __alloc_pages_nodemask+0xa80/0xde0
[  413.269339]  ? zap_class+0x640/0x640
[  413.273054]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  413.278078]  ? find_held_lock+0x36/0x1c0
[  413.282152]  ? ____cache_alloc_node+0x1c7/0x1e0
[  413.286814]  ? lock_downgrade+0x900/0x900
[  413.290960]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.296493]  cache_grow_begin+0xa5/0x8c0
[  413.300545]  ? do_raw_spin_unlock+0xa7/0x330
[  413.304978]  fallback_alloc+0x204/0x2e0
[  413.308970]  ____cache_alloc_node+0x1c7/0x1e0
[  413.313467]  kmem_cache_alloc_node+0xe3/0x730
[  413.317953]  ? mark_held_locks+0xc7/0x130
[  413.322114]  __alloc_skb+0x119/0x770
[  413.325826]  ? netdev_alloc_frag+0x1f0/0x1f0
[  413.330230]  ? do_raw_spin_trylock+0x270/0x270
[  413.334804]  ? kmem_cache_alloc_trace+0x353/0x750
[  413.339641]  ? queue_work_on+0x12c/0x1e0
[  413.343707]  ? switchdev_port_obj_del+0xdc/0x440
[  413.348457]  ? switchdev_trans_item_enqueue+0x260/0x260
[  413.353814]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  413.359594]  __br_mdb_notify+0x4ff/0x15d0
[  413.363735]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  413.368840]  ? __br_mdb_add+0x7f0/0x7f0
[  413.372811]  ? mark_held_locks+0x130/0x130
[  413.377038]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  413.382138]  ? debug_object_assert_init+0x368/0x4b0
[  413.387148]  ? debug_object_init_on_stack+0x20/0x20
[  413.392155]  ? zap_class+0x640/0x640
[  413.395869]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.401412]  br_mdb_notify+0x310/0x410
[  413.405298]  ? br_mdb_dump+0x27b0/0x27b0
[  413.409372]  br_multicast_del_pg+0x3df/0x790
[  413.413780]  ? br_mdb_ip_get+0x940/0x940
[  413.417834]  ? rwlock_bug.part.2+0x90/0x90
[  413.422082]  ? __lock_is_held+0xb5/0x140
[  413.426148]  br_multicast_port_group_expired+0x189/0x1e0
[  413.431596]  call_timer_fn+0x272/0x920
[  413.435475]  ? br_multicast_del_pg+0x790/0x790
[  413.440054]  ? process_timeout+0x40/0x40
[  413.444118]  ? mark_held_locks+0xc7/0x130
[  413.448262]  ? _raw_spin_unlock_irq+0x27/0x80
[  413.452746]  ? _raw_spin_unlock_irq+0x27/0x80
[  413.457232]  ? br_multicast_del_pg+0x790/0x790
[  413.462619]  ? lockdep_hardirqs_on+0x296/0x5b0
[  413.467192]  ? trace_hardirqs_on+0xbd/0x310
[  413.471507]  ? kasan_check_read+0x11/0x20
[  413.475648]  ? __run_timers+0x7da/0xc70
[  413.479614]  ? trace_hardirqs_off_caller+0x310/0x310
[  413.484726]  ? br_multicast_del_pg+0x790/0x790
[  413.489307]  ? br_multicast_del_pg+0x790/0x790
[  413.493883]  __run_timers+0x7e5/0xc70
[  413.497706]  ? timer_fixup_init+0x70/0x70
[  413.501862]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  413.506881]  ? zap_class+0x640/0x640
[  413.510591]  ? print_usage_bug+0xc0/0xc0
[  413.514647]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  413.519845]  ? find_held_lock+0x36/0x1c0
[  413.524017]  ? zap_class+0x640/0x640
[  413.527725]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.533258]  ? check_preemption_disabled+0x48/0x280
[  413.538277]  ? __lock_is_held+0xb5/0x140
[  413.542332]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.547869]  ? check_preemption_disabled+0x48/0x280
[  413.552881]  run_timer_softirq+0x52/0xb0
[  413.556936]  ? rcu_read_lock_sched_held+0x14f/0x180
[  413.562390]  __do_softirq+0x308/0xb7e
[  413.566190]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  413.570677]  ? lock_downgrade+0x900/0x900
[  413.574819]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  413.579923]  ? pvclock_read_flags+0x160/0x160
[  413.584413]  ? lapic_next_event+0x5a/0x90
[  413.588552]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.594085]  ? kvm_clock_read+0x18/0x30
[  413.598050]  ? kvm_sched_clock_read+0x9/0x20
[  413.602453]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.607995]  ? check_preemption_disabled+0x48/0x280
[  413.613016]  irq_exit+0x17f/0x1c0
[  413.616462]  smp_apic_timer_interrupt+0x1cb/0x760
[  413.621297]  ? smp_reschedule_interrupt+0x109/0x650
[  413.626308]  ? smp_call_function_single_interrupt+0x650/0x650
[  413.632187]  ? interrupt_entry+0xb5/0xc0
[  413.636329]  ? trace_hardirqs_off_caller+0xbb/0x310
[  413.641352]  ? trace_hardirqs_off_caller+0xbb/0x310
[  413.646373]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.651213]  ? trace_hardirqs_on_caller+0x310/0x310
[  413.656240]  ? trace_hardirqs_on_caller+0x310/0x310
[  413.662256]  ? task_prio+0x50/0x50
[  413.665792]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.671326]  ? check_preemption_disabled+0x48/0x280
[  413.676356]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.681197]  apic_timer_interrupt+0xf/0x20
[  413.685428]  </IRQ>
[  413.687662] RIP: 0010:dump_stack+0x358/0x39d
[  413.692061] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  413.710954] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  413.718652] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  413.725912] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  413.733169] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  413.740426] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  413.747682] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  413.754959]  ? dump_stack+0x34f/0x39d
[  413.759750]  ? dump_stack_print_info.cold.1+0x20/0x20
[  413.765182]  ? mark_held_locks+0x130/0x130
[  413.769412]  ? mark_held_locks+0x130/0x130
[  413.773659]  dump_header+0x27b/0xf72
[  413.777376]  ? pagefault_out_of_memory+0x197/0x197
[  413.782325]  ? __lock_acquire+0x62f/0x4c20
[  413.786568]  ? percpu_ref_get_many+0x240/0x240
[  413.791147]  ? print_usage_bug+0xc0/0xc0
[  413.795206]  ? zap_class+0x640/0x640
[  413.798934]  ? print_usage_bug+0xc0/0xc0
[  413.802986]  ? print_usage_bug+0xc0/0xc0
[  413.807046]  ? zap_class+0x640/0x640
[  413.810758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.816293]  ? find_held_lock+0x36/0x1c0
[  413.820366]  ? mark_held_locks+0xc7/0x130
[  413.824517]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  413.829610]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  413.834722]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  413.839300]  ? trace_hardirqs_on+0xbd/0x310
[  413.843625]  ? kasan_check_read+0x11/0x20
[  413.847769]  ? ___ratelimit+0x3b4/0x672
[  413.851738]  ? trace_hardirqs_off_caller+0x310/0x310
[  413.856840]  ? trace_hardirqs_on+0x310/0x310
[  413.862155]  ? lock_downgrade+0x900/0x900
[  413.866296]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  413.871396]  ? ___ratelimit+0x3b9/0x672
[  413.875365]  ? idr_get_free+0xf70/0xf70
[  413.879342]  ? find_held_lock+0x36/0x1c0
[  413.883404]  oom_kill_process.cold.27+0x10/0x903
[  413.888152]  ? zap_class+0x640/0x640
[  413.891863]  ? check_preemption_disabled+0x48/0x280
[  413.896872]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  413.901813]  ? kasan_check_read+0x11/0x20
[  413.905957]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.911225]  ? oom_evaluate_task+0x540/0x540
[  413.915624]  ? find_held_lock+0x36/0x1c0
[  413.919682]  ? out_of_memory+0x974/0x1430
[  413.923820]  ? lock_downgrade+0x900/0x900
[  413.928426]  ? check_preemption_disabled+0x48/0x280
[  413.933440]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  413.938364]  ? kasan_check_read+0x11/0x20
[  413.942502]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.947764]  ? rcu_softirq_qs+0x20/0x20
[  413.951734]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.957262]  ? oom_evaluate_task+0x302/0x540
[  413.962121]  out_of_memory+0xa84/0x1430
[  413.966111]  ? oom_killer_disable+0x3a0/0x3a0
[  413.970620]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  413.975543]  ? __ww_mutex_check_waiters+0x160/0x160
[  413.980567]  __alloc_pages_slowpath+0x2354/0x2e10
[  413.985452]  ? warn_alloc+0x120/0x120
[  413.989244]  ? mark_held_locks+0x130/0x130
[  413.993474]  ? find_get_entry+0xaae/0x1120
[  413.997713]  ? filemap_map_pages+0x1a20/0x1a20
[  414.002301]  ? zap_class+0x640/0x640
[  414.006017]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.011551]  ? check_preemption_disabled+0x48/0x280
[  414.016569]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.022094]  ? should_fail+0x22d/0xd01
[  414.025980]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  414.031077]  ? zap_class+0x640/0x640
[  414.034810]  ? __lock_is_held+0xb5/0x140
[  414.038889]  ? mark_held_locks+0x130/0x130
[  414.043127]  ? lock_release+0xa00/0xa00
[  414.047113]  ? perf_trace_sched_process_exec+0x860/0x860
[  414.052550]  ? xa_load+0x2ba/0x460
[  414.056075]  ? lock_downgrade+0x900/0x900
[  414.061021]  ? __might_sleep+0x95/0x190
[  414.064999]  __alloc_pages_nodemask+0xa80/0xde0
[  414.069667]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  414.074677]  ? __page_cache_alloc+0x191/0x5c0
[  414.079162]  ? xa_load+0x2e1/0x460
[  414.082694]  ? xa_clear_mark+0x40/0x40
[  414.086579]  ? zap_class+0x640/0x640
[  414.090297]  ? zap_class+0x640/0x640
[  414.094008]  ? zap_class+0x640/0x640
[  414.097715]  ? __do_page_cache_readahead+0x663/0x810
[  414.102817]  ? find_held_lock+0x36/0x1c0
[  414.106877]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  414.112410]  alloc_pages_current+0x173/0x350
[  414.116816]  __page_cache_alloc+0x38c/0x5c0
[  414.121133]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  414.126054]  ? kasan_check_read+0x11/0x20
[  414.130194]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.135466]  ? generic_perform_write+0x6a0/0x6a0
[  414.140234]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.145770]  ? check_preemption_disabled+0x48/0x280
[  414.150786]  filemap_fault+0x1595/0x25f0
[  414.154852]  ? __lock_page_or_retry+0xa00/0xa00
[  414.160009]  ? mark_held_locks+0x130/0x130
[  414.164246]  ? filemap_map_pages+0xd6b/0x1a20
[  414.168736]  ? lock_downgrade+0x900/0x900
[  414.172880]  ? check_preemption_disabled+0x48/0x280
[  414.177892]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  414.182815]  ? kasan_check_read+0x11/0x20
[  414.186991]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.192259]  ? rcu_softirq_qs+0x20/0x20
[  414.196237]  ? filemap_map_pages+0xd92/0x1a20
[  414.200739]  ? find_get_entries_tag+0x1400/0x1400
[  414.205582]  ? debug_object_destroy+0x2b0/0x2b0
[  414.210258]  ? lock_pi_update_atomic+0x150/0x150
[  414.215031]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.220584]  ? lock_acquire+0x1ed/0x520
[  414.224552]  ? ext4_filemap_fault+0x7a/0xad
[  414.228868]  ? lock_release+0xa00/0xa00
[  414.232837]  ? perf_trace_sched_process_exec+0x860/0x860
[  414.238285]  ? print_usage_bug+0xc0/0xc0
[  414.242350]  ? print_usage_bug+0xc0/0xc0
[  414.246419]  ? down_read+0x8d/0x120
[  414.250037]  ? ext4_filemap_fault+0x7a/0xad
[  414.254356]  ? __down_interruptible+0x700/0x700
[  414.259799]  ext4_filemap_fault+0x82/0xad
[  414.263945]  __do_fault+0x100/0x6b0
[  414.267571]  ? pmd_devmap_trans_unstable+0x220/0x220
[  414.272672]  ? mark_held_locks+0x130/0x130
[  414.276912]  ? mark_held_locks+0x130/0x130
[  414.281157]  ? do_raw_spin_trylock+0x270/0x270
[  414.285741]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.291275]  __handle_mm_fault+0x3ea0/0x5be0
[  414.295687]  ? perf_trace_lock+0x7a0/0x7a0
[  414.299925]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  414.304771]  ? __switch_to_asm+0x34/0x70
[  414.308839]  ? __switch_to_asm+0x34/0x70
[  414.312902]  ? zap_class+0x640/0x640
[  414.316609]  ? zap_class+0x640/0x640
[  414.320319]  ? __x64_sys_futex+0x53e/0x6a0
[  414.324553]  ? find_held_lock+0x36/0x1c0
[  414.328628]  ? handle_mm_fault+0x42a/0xc70
[  414.332859]  ? lock_downgrade+0x900/0x900
[  414.336999]  ? check_preemption_disabled+0x48/0x280
[  414.342012]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  414.346933]  ? kasan_check_read+0x11/0x20
[  414.351071]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.356343]  ? rcu_softirq_qs+0x20/0x20
[  414.361077]  ? trace_hardirqs_off_caller+0x310/0x310
[  414.366178]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.371717]  ? check_preemption_disabled+0x48/0x280
[  414.376733]  handle_mm_fault+0x54f/0xc70
[  414.380791]  ? __handle_mm_fault+0x5be0/0x5be0
[  414.385381]  ? find_vma+0x34/0x190
[  414.388917]  __do_page_fault+0x5e8/0xe60
[  414.392972]  ? trace_hardirqs_off+0xb8/0x310
[  414.397385]  do_page_fault+0xf2/0x7e0
[  414.401182]  ? vmalloc_sync_all+0x30/0x30
[  414.405323]  ? error_entry+0x70/0xd0
[  414.409034]  ? trace_hardirqs_off_caller+0xbb/0x310
[  414.414042]  ? trace_hardirqs_on_caller+0xc0/0x310
[  414.418962]  ? syscall_return_slowpath+0x5e0/0x5e0
[  414.423886]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.428720]  ? trace_hardirqs_on_caller+0x310/0x310
[  414.433726]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  414.439172]  ? prepare_exit_to_usermode+0x291/0x3b0
[  414.444179]  ? page_fault+0x8/0x30
[  414.447731]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.452567]  ? page_fault+0x8/0x30
[  414.456098]  page_fault+0x1e/0x30
[  414.459814] RIP: 0033:0x45ddf3
[  414.463015] Code: Bad RIP value.
[  414.466371] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  414.471724] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  414.478982] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  414.486243] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  414.493504] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  414.500760] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  414.508035] warn_alloc_show_mem: 1 callbacks suppressed
[  414.508044] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  414.508045] Mem-Info:
[  414.508072] active_anon:54141 inactive_anon:292 isolated_anon:0
[  414.508072]  active_file:12 inactive_file:13 isolated_file:0
[  414.508072]  unevictable:0 dirty:0 writeback:0 unstable:0
[  414.508072]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  414.508072]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  414.508072]  free:13705 free_pcp:178 free_cma:0
[  414.513399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  414.513405] Call Trace:
[  414.520173] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  414.522573]  dump_stack+0x244/0x39d
[  414.555517] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  414.565191]  ? dump_stack_print_info.cold.1+0x20/0x20
[  414.567745] lowmem_reserve[]: 0 2818 6321 6321
[  414.595414]  warn_alloc.cold.116+0xb7/0x1bd
[  414.599005] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  414.625102]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  414.630261] lowmem_reserve[]: 0 0 3503 3503
[  414.634835]  ? lock_downgrade+0x900/0x900
[  414.639123] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  414.666938]  ? trace_hardirqs_off+0xb8/0x310
[  414.671746] lowmem_reserve[]: 0 0 0 0
[  414.676055]  ? trace_hardirqs_off+0xb8/0x310
[  414.680171] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  414.709136]  __alloc_pages_slowpath+0x26e8/0x2e10
[  414.713501] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  414.717331]  ? warn_alloc+0x120/0x120
[  414.721687] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  414.735296]  ? warn_alloc+0x120/0x120
[  414.740109] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  414.755348]  ? warn_alloc+0x120/0x120
[  414.759925] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  414.774123]  ? print_usage_bug+0xc0/0xc0
[  414.777890] 366 total pagecache pages
[  414.786710]  ? __alloc_pages_slowpath+0x26e8/0x2e10
[  414.790491] 0 pages in swap cache
[  414.799045]  ? print_usage_bug+0xc0/0xc0
[  414.803077] Swap cache stats: add 0, delete 0, find 0/0
[  414.806857]  ? print_usage_bug+0xc0/0xc0
[  414.811843] Free swap  = 0kB
[  414.815292]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.819313] Total swap = 0kB
[  414.824660]  ? should_fail+0x22d/0xd01
[  414.828688] 1965979 pages RAM
[  414.831691]  ? mark_held_locks+0x130/0x130
[  414.837201] 0 pages HighMem/MovableOnly
[  414.840205]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  414.844057] 342854 pages reserved
[  414.844063] 0 pages cma reserved
[  414.847150]  ? __lock_acquire+0x62f/0x4c20
[  414.851530] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  414.855337]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  414.861393] syz-fuzzer cpuset=/ mems_allowed=0
[  414.864830]  ? __lock_acquire+0x62f/0x4c20
[  414.864845]  ? should_fail+0x22d/0xd01
[  414.900331]  ? print_usage_bug+0xc0/0xc0
[  414.904390]  ? mark_held_locks+0x130/0x130
[  414.908624]  ? mark_held_locks+0x130/0x130
[  414.912857]  ? zap_class+0x640/0x640
[  414.916563]  ? ret_from_fork+0x3a/0x50
[  414.920448]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.925983]  ? check_preemption_disabled+0x48/0x280
[  414.931001]  ? __lock_is_held+0xb5/0x140
[  414.935058]  __alloc_pages_nodemask+0xa80/0xde0
[  414.939718]  ? zap_class+0x640/0x640
[  414.943465]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  414.948485]  ? find_held_lock+0x36/0x1c0
[  414.952548]  ? ____cache_alloc_node+0x1c7/0x1e0
[  414.957213]  ? lock_downgrade+0x900/0x900
[  414.961721]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.967249]  cache_grow_begin+0xa5/0x8c0
[  414.971312]  ? do_raw_spin_unlock+0xa7/0x330
[  414.975718]  fallback_alloc+0x204/0x2e0
[  414.979692]  ____cache_alloc_node+0x1c7/0x1e0
[  414.984186]  kmem_cache_alloc_node+0xe3/0x730
[  414.988674]  ? mark_held_locks+0xc7/0x130
[  414.992835]  __alloc_skb+0x119/0x770
[  414.996544]  ? netdev_alloc_frag+0x1f0/0x1f0
[  415.000942]  ? do_raw_spin_trylock+0x270/0x270
[  415.005519]  ? kmem_cache_alloc_trace+0x353/0x750
[  415.010356]  ? queue_work_on+0x12c/0x1e0
[  415.014418]  ? switchdev_port_obj_del+0xdc/0x440
[  415.019169]  ? switchdev_trans_item_enqueue+0x260/0x260
[  415.024528]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  415.029547]  __br_mdb_notify+0x4ff/0x15d0
[  415.033699]  ? __br_mdb_add+0x7f0/0x7f0
[  415.037674]  ? zap_class+0x640/0x640
[  415.041389]  ? br_multicast_group_expired+0x96/0x610
[  415.046484]  ? lock_downgrade+0x900/0x900
[  415.050633]  br_mdb_notify+0x310/0x410
[  415.054511]  ? br_mdb_dump+0x27b0/0x27b0
[  415.058816]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.064365]  br_multicast_group_expired+0x1bc/0x610
[  415.069398]  ? br_mdb_free+0x80/0x80
[  415.073118]  call_timer_fn+0x272/0x920
[  415.077000]  ? br_mdb_free+0x80/0x80
[  415.080706]  ? process_timeout+0x40/0x40
[  415.084765]  ? __run_timers+0x7da/0xc70
[  415.088731]  ? _raw_spin_unlock_irq+0x27/0x80
[  415.093218]  ? _raw_spin_unlock_irq+0x27/0x80
[  415.097716]  ? br_mdb_free+0x80/0x80
[  415.101422]  ? lockdep_hardirqs_on+0x296/0x5b0
[  415.105996]  ? trace_hardirqs_on+0xbd/0x310
[  415.110310]  ? kasan_check_read+0x11/0x20
[  415.114459]  ? __run_timers+0x7da/0xc70
[  415.118426]  ? trace_hardirqs_off_caller+0x310/0x310
[  415.123536]  ? br_mdb_free+0x80/0x80
[  415.127255]  ? br_mdb_free+0x80/0x80
[  415.130967]  __run_timers+0x7e5/0xc70
[  415.134767]  ? timer_fixup_init+0x70/0x70
[  415.138905]  ? _raw_spin_unlock_irq+0x27/0x80
[  415.143389]  ? _raw_spin_unlock_irq+0x27/0x80
[  415.147879]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  415.152450]  ? trace_hardirqs_on+0xbd/0x310
[  415.156757]  ? kasan_check_read+0x11/0x20
[  415.161237]  ? finish_task_switch+0x1f4/0x910
[  415.165741]  ? trace_hardirqs_off_caller+0x310/0x310
[  415.170836]  ? compat_start_thread+0x80/0x80
[  415.175269]  ? pvclock_read_flags+0x160/0x160
[  415.179751]  ? __switch_to_asm+0x34/0x70
[  415.183806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.189334]  ? check_preemption_disabled+0x48/0x280
[  415.194349]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  415.199876]  ? rcu_pm_notify+0xc0/0xc0
[  415.203757]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.209286]  ? check_preemption_disabled+0x48/0x280
[  415.214303]  run_timer_softirq+0x52/0xb0
[  415.218356]  ? rcu_read_lock_sched_held+0x14f/0x180
[  415.223367]  __do_softirq+0x308/0xb7e
[  415.227167]  ? trace_hardirqs_on_caller+0xc0/0x310
[  415.232093]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  415.237190]  ? trace_hardirqs_on+0x310/0x310
[  415.241597]  ? schedule+0x108/0x460
[  415.245230]  ? trace_hardirqs_off+0xb8/0x310
[  415.249666]  ? smpboot_thread_fn+0x68b/0xa00
[  415.254063]  ? trace_hardirqs_on+0x310/0x310
[  415.258797]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.264322]  ? check_preemption_disabled+0x48/0x280
[  415.269330]  ? takeover_tasklets+0xa90/0xa90
[  415.273732]  run_ksoftirqd+0x5e/0x100
[  415.277519]  smpboot_thread_fn+0x68b/0xa00
[  415.281751]  ? sort_range+0x30/0x30
[  415.285371]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  415.290473]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.296024]  ? __kthread_parkme+0xfb/0x1a0
[  415.300265]  ? sort_range+0x30/0x30
[  415.303881]  kthread+0x35a/0x440
[  415.307265]  ? kthread_stop+0x900/0x900
[  415.311226]  ret_from_fork+0x3a/0x50
[  415.314961] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  415.315134] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  415.321878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  415.321885] Call Trace:
[  415.332173] ksoftirqd/0 cpuset=/ mems_allowed=0
[  415.341511]  <IRQ>
[  415.350859]  dump_stack+0x244/0x39d
[  415.354483]  ? dump_stack_print_info.cold.1+0x20/0x20
[  415.360423]  warn_alloc.cold.116+0xb7/0x1bd
[  415.364740]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  415.369584]  ? lock_downgrade+0x900/0x900
[  415.373730]  ? trace_hardirqs_off+0xb8/0x310
[  415.378158]  ? trace_hardirqs_off+0xb8/0x310
[  415.382569]  __alloc_pages_slowpath+0x26e8/0x2e10
[  415.387430]  ? warn_alloc+0x120/0x120
[  415.391232]  ? warn_alloc+0x120/0x120
[  415.395029]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  415.400041]  ? warn_alloc+0x120/0x120
[  415.403836]  ? print_usage_bug+0xc0/0xc0
[  415.407891]  ? print_usage_bug+0xc0/0xc0
[  415.411944]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  415.417133]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.422665]  ? should_fail+0x22d/0xd01
[  415.426547]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  415.431645]  ? __lock_acquire+0x62f/0x4c20
[  415.435891]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  415.440988]  ? should_fail+0x22d/0xd01
[  415.444874]  ? mark_held_locks+0x130/0x130
[  415.449106]  ? mark_held_locks+0x130/0x130
[  415.453327]  ? print_usage_bug+0xc0/0xc0
[  415.457378]  ? find_held_lock+0x36/0x1c0
[  415.462400]  ? zap_class+0x640/0x640
[  415.466111]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.471648]  ? check_preemption_disabled+0x48/0x280
[  415.476668]  ? __lock_is_held+0xb5/0x140
[  415.480728]  __alloc_pages_nodemask+0xa80/0xde0
[  415.485390]  ? zap_class+0x640/0x640
[  415.489105]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  415.494122]  ? find_held_lock+0x36/0x1c0
[  415.498184]  ? ____cache_alloc_node+0x1c7/0x1e0
[  415.502846]  ? lock_downgrade+0x900/0x900
[  415.506996]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.512530]  cache_grow_begin+0xa5/0x8c0
[  415.516581]  ? do_raw_spin_unlock+0xa7/0x330
[  415.520991]  fallback_alloc+0x204/0x2e0
[  415.524964]  ____cache_alloc_node+0x1c7/0x1e0
[  415.529459]  kmem_cache_alloc_node+0xe3/0x730
[  415.533946]  ? mark_held_locks+0xc7/0x130
[  415.538102]  __alloc_skb+0x119/0x770
[  415.541812]  ? netdev_alloc_frag+0x1f0/0x1f0
[  415.546213]  ? do_raw_spin_trylock+0x270/0x270
[  415.550795]  ? kmem_cache_alloc_trace+0x353/0x750
[  415.555635]  ? queue_work_on+0x12c/0x1e0
[  415.560001]  ? switchdev_port_obj_del+0xdc/0x440
[  415.564756]  ? switchdev_trans_item_enqueue+0x260/0x260
[  415.570122]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  415.575138]  __br_mdb_notify+0x4ff/0x15d0
[  415.579278]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  415.584385]  ? __br_mdb_add+0x7f0/0x7f0
[  415.588372]  ? mark_held_locks+0x130/0x130
[  415.592606]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  415.597703]  ? debug_object_assert_init+0x368/0x4b0
[  415.602721]  ? debug_object_init_on_stack+0x20/0x20
[  415.607738]  ? zap_class+0x640/0x640
[  415.611446]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.616988]  br_mdb_notify+0x310/0x410
[  415.620875]  ? br_mdb_dump+0x27b0/0x27b0
[  415.624940]  br_multicast_del_pg+0x3df/0x790
[  415.629351]  ? br_mdb_ip_get+0x940/0x940
[  415.633405]  ? rwlock_bug.part.2+0x90/0x90
[  415.637637]  ? __lock_is_held+0xb5/0x140
[  415.641999]  br_multicast_port_group_expired+0x189/0x1e0
[  415.647446]  call_timer_fn+0x272/0x920
[  415.651323]  ? br_multicast_del_pg+0x790/0x790
[  415.655898]  ? process_timeout+0x40/0x40
[  415.660747]  ? mark_held_locks+0xc7/0x130
[  415.664884]  ? _raw_spin_unlock_irq+0x27/0x80
[  415.669370]  ? _raw_spin_unlock_irq+0x27/0x80
[  415.673883]  ? br_multicast_del_pg+0x790/0x790
[  415.678458]  ? lockdep_hardirqs_on+0x296/0x5b0
[  415.683034]  ? trace_hardirqs_on+0xbd/0x310
[  415.687347]  ? kasan_check_read+0x11/0x20
[  415.691485]  ? __run_timers+0x7da/0xc70
[  415.695452]  ? trace_hardirqs_off_caller+0x310/0x310
[  415.700553]  ? br_multicast_del_pg+0x790/0x790
[  415.705140]  ? br_multicast_del_pg+0x790/0x790
[  415.709713]  __run_timers+0x7e5/0xc70
[  415.713518]  ? timer_fixup_init+0x70/0x70
[  415.717663]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  415.722672]  ? zap_class+0x640/0x640
[  415.726386]  ? print_usage_bug+0xc0/0xc0
[  415.730442]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  415.735635]  ? find_held_lock+0x36/0x1c0
[  415.739692]  ? zap_class+0x640/0x640
[  415.743410]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.748942]  ? check_preemption_disabled+0x48/0x280
[  415.753960]  ? __lock_is_held+0xb5/0x140
[  415.758018]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.764333]  ? check_preemption_disabled+0x48/0x280
[  415.769351]  run_timer_softirq+0x52/0xb0
[  415.773406]  ? rcu_read_lock_sched_held+0x14f/0x180
[  415.778436]  __do_softirq+0x308/0xb7e
[  415.782239]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  415.786733]  ? lock_downgrade+0x900/0x900
[  415.790892]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  415.796012]  ? pvclock_read_flags+0x160/0x160
[  415.800502]  ? lapic_next_event+0x5a/0x90
[  415.804650]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.810214]  ? kvm_clock_read+0x18/0x30
[  415.814183]  ? kvm_sched_clock_read+0x9/0x20
[  415.818595]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.824132]  ? check_preemption_disabled+0x48/0x280
[  415.829171]  irq_exit+0x17f/0x1c0
[  415.832626]  smp_apic_timer_interrupt+0x1cb/0x760
[  415.837456]  ? smp_reschedule_interrupt+0x109/0x650
[  415.842461]  ? smp_call_function_single_interrupt+0x650/0x650
[  415.848339]  ? interrupt_entry+0xb5/0xc0
[  415.852397]  ? trace_hardirqs_off_caller+0xbb/0x310
[  415.857406]  ? trace_hardirqs_off_caller+0xbb/0x310
[  415.863341]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.868180]  ? trace_hardirqs_on_caller+0x310/0x310
[  415.873194]  ? trace_hardirqs_on_caller+0x310/0x310
[  415.878215]  ? task_prio+0x50/0x50
[  415.881749]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.887279]  ? check_preemption_disabled+0x48/0x280
[  415.892294]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.897134]  apic_timer_interrupt+0xf/0x20
[  415.901354]  </IRQ>
[  415.903588] RIP: 0010:dump_stack+0x358/0x39d
[  415.907995] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  415.926887] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  415.935068] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  415.942327] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  415.949590] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  415.956948] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  415.964663] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  415.971976]  ? dump_stack+0x34f/0x39d
[  415.975786]  ? dump_stack_print_info.cold.1+0x20/0x20
[  415.980975]  ? mark_held_locks+0x130/0x130
[  415.985234]  ? mark_held_locks+0x130/0x130
[  415.989487]  dump_header+0x27b/0xf72
[  415.993223]  ? pagefault_out_of_memory+0x197/0x197
[  415.998151]  ? __lock_acquire+0x62f/0x4c20
[  416.002385]  ? percpu_ref_get_many+0x240/0x240
[  416.006963]  ? print_usage_bug+0xc0/0xc0
[  416.011022]  ? zap_class+0x640/0x640
[  416.014736]  ? print_usage_bug+0xc0/0xc0
[  416.018789]  ? print_usage_bug+0xc0/0xc0
[  416.022849]  ? zap_class+0x640/0x640
[  416.026564]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.032098]  ? find_held_lock+0x36/0x1c0
[  416.036168]  ? mark_held_locks+0xc7/0x130
[  416.040335]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  416.045431]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  416.050530]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  416.055123]  ? trace_hardirqs_on+0xbd/0x310
[  416.060363]  ? kasan_check_read+0x11/0x20
[  416.064501]  ? ___ratelimit+0x3b4/0x672
[  416.068471]  ? trace_hardirqs_off_caller+0x310/0x310
[  416.073565]  ? trace_hardirqs_on+0x310/0x310
[  416.077967]  ? lock_downgrade+0x900/0x900
[  416.082113]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  416.087220]  ? ___ratelimit+0x3b9/0x672
[  416.091193]  ? idr_get_free+0xf70/0xf70
[  416.095162]  ? find_held_lock+0x36/0x1c0
[  416.099232]  oom_kill_process.cold.27+0x10/0x903
[  416.103992]  ? zap_class+0x640/0x640
[  416.107707]  ? check_preemption_disabled+0x48/0x280
[  416.112726]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  416.117646]  ? kasan_check_read+0x11/0x20
[  416.121788]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.127061]  ? oom_evaluate_task+0x540/0x540
[  416.131467]  ? find_held_lock+0x36/0x1c0
[  416.135532]  ? out_of_memory+0x974/0x1430
[  416.139676]  ? lock_downgrade+0x900/0x900
[  416.143822]  ? check_preemption_disabled+0x48/0x280
[  416.148923]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  416.153850]  ? kasan_check_read+0x11/0x20
[  416.157989]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.164007]  ? rcu_softirq_qs+0x20/0x20
[  416.167982]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.173511]  ? oom_evaluate_task+0x302/0x540
[  416.177936]  out_of_memory+0xa84/0x1430
[  416.181914]  ? oom_killer_disable+0x3a0/0x3a0
[  416.186403]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  416.191333]  ? __ww_mutex_check_waiters+0x160/0x160
[  416.196352]  __alloc_pages_slowpath+0x2354/0x2e10
[  416.201222]  ? warn_alloc+0x120/0x120
[  416.205020]  ? mark_held_locks+0x130/0x130
[  416.209253]  ? find_get_entry+0xaae/0x1120
[  416.213488]  ? filemap_map_pages+0x1a20/0x1a20
[  416.218072]  ? zap_class+0x640/0x640
[  416.221783]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.227333]  ? check_preemption_disabled+0x48/0x280
[  416.232341]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.237889]  ? should_fail+0x22d/0xd01
[  416.241777]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  416.246874]  ? zap_class+0x640/0x640
[  416.250602]  ? __lock_is_held+0xb5/0x140
[  416.254671]  ? mark_held_locks+0x130/0x130
[  416.259661]  ? lock_release+0xa00/0xa00
[  416.263641]  ? perf_trace_sched_process_exec+0x860/0x860
[  416.269082]  ? xa_load+0x2ba/0x460
[  416.272619]  ? lock_downgrade+0x900/0x900
[  416.276766]  ? __might_sleep+0x95/0x190
[  416.280738]  __alloc_pages_nodemask+0xa80/0xde0
[  416.285409]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  416.290422]  ? __page_cache_alloc+0x191/0x5c0
[  416.294911]  ? xa_load+0x2e1/0x460
[  416.298446]  ? xa_clear_mark+0x40/0x40
[  416.302328]  ? zap_class+0x640/0x640
[  416.306045]  ? zap_class+0x640/0x640
[  416.309754]  ? zap_class+0x640/0x640
[  416.313462]  ? __do_page_cache_readahead+0x663/0x810
[  416.318564]  ? find_held_lock+0x36/0x1c0
[  416.322622]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  416.328159]  alloc_pages_current+0x173/0x350
[  416.332574]  __page_cache_alloc+0x38c/0x5c0
[  416.336889]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  416.341810]  ? kasan_check_read+0x11/0x20
[  416.345952]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.351225]  ? generic_perform_write+0x6a0/0x6a0
[  416.355976]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.362434]  ? check_preemption_disabled+0x48/0x280
[  416.367456]  filemap_fault+0x1595/0x25f0
[  416.371520]  ? __lock_page_or_retry+0xa00/0xa00
[  416.376190]  ? mark_held_locks+0x130/0x130
[  416.380432]  ? filemap_map_pages+0xd6b/0x1a20
[  416.384921]  ? lock_downgrade+0x900/0x900
[  416.389062]  ? check_preemption_disabled+0x48/0x280
[  416.394074]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  416.398996]  ? kasan_check_read+0x11/0x20
[  416.403141]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.408418]  ? rcu_softirq_qs+0x20/0x20
[  416.412399]  ? filemap_map_pages+0xd92/0x1a20
[  416.416898]  ? find_get_entries_tag+0x1400/0x1400
[  416.421738]  ? debug_object_destroy+0x2b0/0x2b0
[  416.426400]  ? lock_pi_update_atomic+0x150/0x150
[  416.431149]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.436701]  ? lock_acquire+0x1ed/0x520
[  416.440667]  ? ext4_filemap_fault+0x7a/0xad
[  416.444990]  ? lock_release+0xa00/0xa00
[  416.448960]  ? perf_trace_sched_process_exec+0x860/0x860
[  416.454402]  ? print_usage_bug+0xc0/0xc0
[  416.459386]  ? print_usage_bug+0xc0/0xc0
[  416.463454]  ? down_read+0x8d/0x120
[  416.467071]  ? ext4_filemap_fault+0x7a/0xad
[  416.471386]  ? __down_interruptible+0x700/0x700
[  416.476064]  ext4_filemap_fault+0x82/0xad
[  416.480208]  __do_fault+0x100/0x6b0
[  416.483832]  ? pmd_devmap_trans_unstable+0x220/0x220
[  416.488930]  ? mark_held_locks+0x130/0x130
[  416.493170]  ? mark_held_locks+0x130/0x130
[  416.497398]  ? do_raw_spin_trylock+0x270/0x270
[  416.501982]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.507512]  __handle_mm_fault+0x3ea0/0x5be0
[  416.511913]  ? perf_trace_lock+0x7a0/0x7a0
[  416.516150]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  416.521004]  ? __switch_to_asm+0x34/0x70
[  416.525055]  ? __switch_to_asm+0x34/0x70
[  416.529117]  ? zap_class+0x640/0x640
[  416.532821]  ? zap_class+0x640/0x640
[  416.536527]  ? __x64_sys_futex+0x53e/0x6a0
[  416.540757]  ? find_held_lock+0x36/0x1c0
[  416.544819]  ? handle_mm_fault+0x42a/0xc70
[  416.549045]  ? lock_downgrade+0x900/0x900
[  416.553186]  ? check_preemption_disabled+0x48/0x280
[  416.558247]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  416.563575]  ? kasan_check_read+0x11/0x20
[  416.567717]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.572991]  ? rcu_softirq_qs+0x20/0x20
[  416.576958]  ? trace_hardirqs_off_caller+0x310/0x310
[  416.582055]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.587602]  ? check_preemption_disabled+0x48/0x280
[  416.592622]  handle_mm_fault+0x54f/0xc70
[  416.596685]  ? __handle_mm_fault+0x5be0/0x5be0
[  416.601266]  ? find_vma+0x34/0x190
[  416.604803]  __do_page_fault+0x5e8/0xe60
[  416.608912]  ? trace_hardirqs_off+0xb8/0x310
[  416.613321]  do_page_fault+0xf2/0x7e0
[  416.617115]  ? vmalloc_sync_all+0x30/0x30
[  416.621260]  ? error_entry+0x70/0xd0
[  416.624966]  ? trace_hardirqs_off_caller+0xbb/0x310
[  416.630063]  ? trace_hardirqs_on_caller+0xc0/0x310
[  416.635001]  ? syscall_return_slowpath+0x5e0/0x5e0
[  416.639921]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  416.644765]  ? trace_hardirqs_on_caller+0x310/0x310
[  416.649771]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  416.655219]  ? prepare_exit_to_usermode+0x291/0x3b0
[  416.660986]  ? page_fault+0x8/0x30
[  416.664536]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  416.669372]  ? page_fault+0x8/0x30
[  416.672906]  page_fault+0x1e/0x30
[  416.676353] RIP: 0033:0x45ddf3
[  416.679551] Code: Bad RIP value.
[  416.682927] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  416.688283] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  416.695558] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  416.702816] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  416.710077] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  416.717336] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  416.724617] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  416.724621] warn_alloc_show_mem: 1 callbacks suppressed
[  416.724627] Mem-Info:
[  416.731369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  416.736730] active_anon:54141 inactive_anon:292 isolated_anon:0
[  416.736730]  active_file:12 inactive_file:13 isolated_file:0
[  416.736730]  unevictable:0 dirty:0 writeback:0 unstable:0
[  416.736730]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  416.736730]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  416.736730]  free:13705 free_pcp:178 free_cma:0
[  416.739099] Call Trace:
[  416.748477] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  416.781620]  dump_stack+0x244/0x39d
[  416.784178] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  416.811927]  ? dump_stack_print_info.cold.1+0x20/0x20
[  416.815522] lowmem_reserve[]: 0 2818 6321 6321
[  416.841629]  warn_alloc.cold.116+0xb7/0x1bd
[  416.846781] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  416.851354]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  416.855643] lowmem_reserve[]: 0 0 3503 3503
[  416.883450]  ? lock_downgrade+0x900/0x900
[  416.888264] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  416.892575]  ? trace_hardirqs_off+0xb8/0x310
[  416.897157] lowmem_reserve[]: 0 0 0 0
[  416.926126]  ? trace_hardirqs_off+0xb8/0x310
[  416.930508] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  416.934305]  __alloc_pages_slowpath+0x26e8/0x2e10
[  416.938677] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  416.952221]  ? warn_alloc+0x120/0x120
[  416.957012] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  416.972580]  ? print_usage_bug+0xc0/0xc0
[  416.976355] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  416.990551]  ? warn_alloc+0x120/0x120
[  416.994590] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  417.003405]  ? warn_alloc+0x120/0x120
[  417.007180] 366 total pagecache pages
[  417.015741]  ? print_usage_bug+0xc0/0xc0
[  417.019524] 0 pages in swap cache
[  417.023305]  ? print_usage_bug+0xc0/0xc0
[  417.027342] Swap cache stats: add 0, delete 0, find 0/0
[  417.030779]  ? check_preemption_disabled+0x48/0x280
[  417.034806] Free swap  = 0kB
[  417.040168]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.045163] Total swap = 0kB
[  417.048184]  ? should_fail+0x22d/0xd01
[  417.053690] 1965979 pages RAM
[  417.056695]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  417.061333] 0 pages HighMem/MovableOnly
[  417.061340] 342854 pages reserved
[  417.064431]  ? __lock_acquire+0x62f/0x4c20
[  417.069505] 0 pages cma reserved
[  417.073466]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  417.077018] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  417.081105]  ? __lock_acquire+0x62f/0x4c20
[  417.084446] syz-fuzzer cpuset=/ mems_allowed=0
[  417.089547]  ? should_fail+0x22d/0xd01
[  417.089570]  ? mark_held_locks+0x130/0x130
[  417.116624]  ? mark_held_locks+0x130/0x130
[  417.120865]  ? zap_class+0x640/0x640
[  417.124570]  ? print_usage_bug+0xc0/0xc0
[  417.128626]  ? mark_held_locks+0x130/0x130
[  417.132860]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.138390]  ? check_preemption_disabled+0x48/0x280
[  417.143405]  ? __lock_is_held+0xb5/0x140
[  417.147466]  __alloc_pages_nodemask+0xa80/0xde0
[  417.152137]  ? zap_class+0x640/0x640
[  417.155847]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  417.161224]  ? find_held_lock+0x36/0x1c0
[  417.165295]  ? ____cache_alloc_node+0x1c7/0x1e0
[  417.169962]  ? lock_downgrade+0x900/0x900
[  417.174108]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.179661]  cache_grow_begin+0xa5/0x8c0
[  417.183713]  ? do_raw_spin_unlock+0xa7/0x330
[  417.188132]  fallback_alloc+0x204/0x2e0
[  417.192106]  ____cache_alloc_node+0x1c7/0x1e0
[  417.196631]  kmem_cache_alloc_node+0xe3/0x730
[  417.201137]  ? ipv6_get_ifaddr+0x42e/0x620
[  417.205373]  __alloc_skb+0x119/0x770
[  417.209078]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.214355]  ? netdev_alloc_frag+0x1f0/0x1f0
[  417.218759]  ? lock_downgrade+0x900/0x900
[  417.222907]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.228439]  ? refcount_sub_and_test_checked+0x203/0x310
[  417.233891]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  417.239332]  ? addrconf_rs_timer+0x690/0x690
[  417.243744]  ndisc_alloc_skb+0x144/0x340
[  417.247811]  ndisc_send_rs+0x331/0x6e0
[  417.251696]  addrconf_rs_timer+0x314/0x690
[  417.255931]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.260504]  call_timer_fn+0x272/0x920
[  417.264386]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.268610]  ? process_timeout+0x40/0x40
[  417.272670]  ? __run_timers+0x7da/0xc70
[  417.276637]  ? _raw_spin_unlock_irq+0x27/0x80
[  417.281134]  ? _raw_spin_unlock_irq+0x27/0x80
[  417.285621]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.289853]  ? lockdep_hardirqs_on+0x296/0x5b0
[  417.294430]  ? trace_hardirqs_on+0xbd/0x310
[  417.298746]  ? kasan_check_read+0x11/0x20
[  417.302887]  ? __run_timers+0x7da/0xc70
[  417.306979]  ? trace_hardirqs_off_caller+0x310/0x310
[  417.312087]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.316321]  __run_timers+0x7e5/0xc70
[  417.320135]  ? timer_fixup_init+0x70/0x70
[  417.324284]  ? _raw_spin_unlock_irq+0x27/0x80
[  417.328769]  ? _raw_spin_unlock_irq+0x27/0x80
[  417.333255]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  417.337831]  ? trace_hardirqs_on+0xbd/0x310
[  417.342147]  ? kasan_check_read+0x11/0x20
[  417.346292]  ? finish_task_switch+0x1f4/0x910
[  417.350782]  ? trace_hardirqs_off_caller+0x310/0x310
[  417.355967]  ? compat_start_thread+0x80/0x80
[  417.360723]  ? pvclock_read_flags+0x160/0x160
[  417.365210]  ? __switch_to_asm+0x34/0x70
[  417.369269]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.374801]  ? check_preemption_disabled+0x48/0x280
[  417.379822]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  417.385355]  ? rcu_pm_notify+0xc0/0xc0
[  417.389236]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.394768]  ? check_preemption_disabled+0x48/0x280
[  417.399781]  run_timer_softirq+0x52/0xb0
[  417.403849]  ? rcu_read_lock_sched_held+0x14f/0x180
[  417.408858]  __do_softirq+0x308/0xb7e
[  417.412654]  ? trace_hardirqs_on_caller+0xc0/0x310
[  417.417583]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  417.422681]  ? trace_hardirqs_on+0x310/0x310
[  417.427086]  ? schedule+0x108/0x460
[  417.430723]  ? trace_hardirqs_off+0xb8/0x310
[  417.435134]  ? smpboot_thread_fn+0x68b/0xa00
[  417.439537]  ? trace_hardirqs_on+0x310/0x310
[  417.443941]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.449470]  ? check_preemption_disabled+0x48/0x280
[  417.454488]  ? takeover_tasklets+0xa90/0xa90
[  417.459180]  run_ksoftirqd+0x5e/0x100
[  417.462972]  smpboot_thread_fn+0x68b/0xa00
[  417.467213]  ? sort_range+0x30/0x30
[  417.470832]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  417.475928]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.481467]  ? __kthread_parkme+0xfb/0x1a0
[  417.485709]  ? sort_range+0x30/0x30
[  417.489326]  kthread+0x35a/0x440
[  417.492686]  ? kthread_stop+0x900/0x900
[  417.496655]  ret_from_fork+0x3a/0x50
[  417.500388] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  417.500452] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  417.507310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  417.507315] Call Trace:
[  417.507321]  <IRQ>
[  417.507337]  dump_stack+0x244/0x39d
[  417.507372]  ? dump_stack_print_info.cold.1+0x20/0x20
[  417.513909] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  417.523188]  warn_alloc.cold.116+0xb7/0x1bd
[  417.525736] ksoftirqd/0 cpuset=/ mems_allowed=0
[  417.527875]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  417.561683]  ? lock_downgrade+0x900/0x900
[  417.565833]  ? trace_hardirqs_off+0xb8/0x310
[  417.570252]  ? trace_hardirqs_off+0xb8/0x310
[  417.574661]  __alloc_pages_slowpath+0x26e8/0x2e10
[  417.579521]  ? warn_alloc+0x120/0x120
[  417.583320]  ? warn_alloc+0x120/0x120
[  417.587119]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  417.592129]  ? warn_alloc+0x120/0x120
[  417.595922]  ? print_usage_bug+0xc0/0xc0
[  417.599980]  ? print_usage_bug+0xc0/0xc0
[  417.604035]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  417.609242]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.614779]  ? should_fail+0x22d/0xd01
[  417.618664]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  417.623763]  ? __lock_acquire+0x62f/0x4c20
[  417.627995]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  417.633098]  ? should_fail+0x22d/0xd01
[  417.636993]  ? mark_held_locks+0x130/0x130
[  417.641224]  ? mark_held_locks+0x130/0x130
[  417.645451]  ? print_usage_bug+0xc0/0xc0
[  417.649508]  ? find_held_lock+0x36/0x1c0
[  417.653565]  ? zap_class+0x640/0x640
[  417.657276]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.663560]  ? check_preemption_disabled+0x48/0x280
[  417.668579]  ? __lock_is_held+0xb5/0x140
[  417.672640]  __alloc_pages_nodemask+0xa80/0xde0
[  417.677301]  ? zap_class+0x640/0x640
[  417.681014]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  417.686034]  ? find_held_lock+0x36/0x1c0
[  417.690117]  ? ____cache_alloc_node+0x1c7/0x1e0
[  417.694784]  ? lock_downgrade+0x900/0x900
[  417.698930]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.704463]  cache_grow_begin+0xa5/0x8c0
[  417.708531]  ? do_raw_spin_unlock+0xa7/0x330
[  417.712938]  fallback_alloc+0x204/0x2e0
[  417.716912]  ____cache_alloc_node+0x1c7/0x1e0
[  417.721407]  kmem_cache_alloc_node+0xe3/0x730
[  417.725897]  ? mark_held_locks+0xc7/0x130
[  417.730050]  __alloc_skb+0x119/0x770
[  417.733767]  ? netdev_alloc_frag+0x1f0/0x1f0
[  417.738173]  ? do_raw_spin_trylock+0x270/0x270
[  417.742753]  ? kmem_cache_alloc_trace+0x353/0x750
[  417.747601]  ? queue_work_on+0x12c/0x1e0
[  417.751664]  ? switchdev_port_obj_del+0xdc/0x440
[  417.756414]  ? switchdev_trans_item_enqueue+0x260/0x260
[  417.762883]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  417.767903]  __br_mdb_notify+0x4ff/0x15d0
[  417.772049]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  417.777161]  ? __br_mdb_add+0x7f0/0x7f0
[  417.781131]  ? mark_held_locks+0x130/0x130
[  417.785360]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  417.790478]  ? debug_object_assert_init+0x368/0x4b0
[  417.795492]  ? debug_object_init_on_stack+0x20/0x20
[  417.800496]  ? zap_class+0x640/0x640
[  417.804208]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.809781]  br_mdb_notify+0x310/0x410
[  417.813661]  ? br_mdb_dump+0x27b0/0x27b0
[  417.817726]  br_multicast_del_pg+0x3df/0x790
[  417.822157]  ? br_mdb_ip_get+0x940/0x940
[  417.826210]  ? rwlock_bug.part.2+0x90/0x90
[  417.830448]  ? __lock_is_held+0xb5/0x140
[  417.834511]  br_multicast_port_group_expired+0x189/0x1e0
[  417.839955]  call_timer_fn+0x272/0x920
[  417.843838]  ? br_multicast_del_pg+0x790/0x790
[  417.848414]  ? process_timeout+0x40/0x40
[  417.852492]  ? mark_held_locks+0xc7/0x130
[  417.856633]  ? _raw_spin_unlock_irq+0x27/0x80
[  417.861895]  ? _raw_spin_unlock_irq+0x27/0x80
[  417.866381]  ? br_multicast_del_pg+0x790/0x790
[  417.870960]  ? lockdep_hardirqs_on+0x296/0x5b0
[  417.875539]  ? trace_hardirqs_on+0xbd/0x310
[  417.879852]  ? kasan_check_read+0x11/0x20
[  417.883989]  ? __run_timers+0x7da/0xc70
[  417.887957]  ? trace_hardirqs_off_caller+0x310/0x310
[  417.893056]  ? br_multicast_del_pg+0x790/0x790
[  417.897651]  ? br_multicast_del_pg+0x790/0x790
[  417.902225]  __run_timers+0x7e5/0xc70
[  417.906031]  ? timer_fixup_init+0x70/0x70
[  417.910176]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  417.915185]  ? zap_class+0x640/0x640
[  417.918895]  ? print_usage_bug+0xc0/0xc0
[  417.922950]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  417.928626]  ? find_held_lock+0x36/0x1c0
[  417.932684]  ? zap_class+0x640/0x640
[  417.936398]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.941930]  ? check_preemption_disabled+0x48/0x280
[  417.946948]  ? __lock_is_held+0xb5/0x140
[  417.951007]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.956537]  ? check_preemption_disabled+0x48/0x280
[  417.962335]  run_timer_softirq+0x52/0xb0
[  417.966395]  ? rcu_read_lock_sched_held+0x14f/0x180
[  417.971405]  __do_softirq+0x308/0xb7e
[  417.975209]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  417.979695]  ? lock_downgrade+0x900/0x900
[  417.983839]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  417.988955]  ? pvclock_read_flags+0x160/0x160
[  417.993465]  ? lapic_next_event+0x5a/0x90
[  417.997613]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.003147]  ? kvm_clock_read+0x18/0x30
[  418.007117]  ? kvm_sched_clock_read+0x9/0x20
[  418.011522]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.017052]  ? check_preemption_disabled+0x48/0x280
[  418.022084]  irq_exit+0x17f/0x1c0
[  418.025530]  smp_apic_timer_interrupt+0x1cb/0x760
[  418.030366]  ? smp_reschedule_interrupt+0x109/0x650
[  418.035376]  ? smp_call_function_single_interrupt+0x650/0x650
[  418.041267]  ? interrupt_entry+0xb5/0xc0
[  418.045325]  ? trace_hardirqs_off_caller+0xbb/0x310
[  418.050333]  ? trace_hardirqs_off_caller+0xbb/0x310
[  418.055347]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.061100]  ? trace_hardirqs_on_caller+0x310/0x310
[  418.066109]  ? trace_hardirqs_on_caller+0x310/0x310
[  418.071119]  ? task_prio+0x50/0x50
[  418.074659]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.080192]  ? check_preemption_disabled+0x48/0x280
[  418.085203]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.090043]  apic_timer_interrupt+0xf/0x20
[  418.094273]  </IRQ>
[  418.096506] RIP: 0010:dump_stack+0x358/0x39d
[  418.100911] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  418.119802] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  418.127506] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  418.134769] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  418.142033] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  418.149300] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  418.156561] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  418.164840]  ? dump_stack+0x34f/0x39d
[  418.168645]  ? dump_stack_print_info.cold.1+0x20/0x20
[  418.173830]  ? mark_held_locks+0x130/0x130
[  418.178062]  ? mark_held_locks+0x130/0x130
[  418.182294]  dump_header+0x27b/0xf72
[  418.186008]  ? pagefault_out_of_memory+0x197/0x197
[  418.190937]  ? __lock_acquire+0x62f/0x4c20
[  418.195166]  ? percpu_ref_get_many+0x240/0x240
[  418.199755]  ? print_usage_bug+0xc0/0xc0
[  418.203818]  ? zap_class+0x640/0x640
[  418.207526]  ? print_usage_bug+0xc0/0xc0
[  418.211580]  ? print_usage_bug+0xc0/0xc0
[  418.215634]  ? zap_class+0x640/0x640
[  418.219346]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.224880]  ? find_held_lock+0x36/0x1c0
[  418.228944]  ? mark_held_locks+0xc7/0x130
[  418.233085]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  418.238192]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  418.243287]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  418.247864]  ? trace_hardirqs_on+0xbd/0x310
[  418.252193]  ? kasan_check_read+0x11/0x20
[  418.256337]  ? ___ratelimit+0x3b4/0x672
[  418.261096]  ? trace_hardirqs_off_caller+0x310/0x310
[  418.266197]  ? trace_hardirqs_on+0x310/0x310
[  418.270600]  ? lock_downgrade+0x900/0x900
[  418.274744]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  418.279839]  ? ___ratelimit+0x3b9/0x672
[  418.283807]  ? idr_get_free+0xf70/0xf70
[  418.287791]  ? find_held_lock+0x36/0x1c0
[  418.291853]  oom_kill_process.cold.27+0x10/0x903
[  418.296603]  ? zap_class+0x640/0x640
[  418.300315]  ? check_preemption_disabled+0x48/0x280
[  418.305333]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  418.310257]  ? kasan_check_read+0x11/0x20
[  418.314400]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.319672]  ? oom_evaluate_task+0x540/0x540
[  418.324076]  ? find_held_lock+0x36/0x1c0
[  418.328226]  ? out_of_memory+0x974/0x1430
[  418.332373]  ? lock_downgrade+0x900/0x900
[  418.336515]  ? check_preemption_disabled+0x48/0x280
[  418.341524]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  418.346454]  ? kasan_check_read+0x11/0x20
[  418.350595]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.355862]  ? rcu_softirq_qs+0x20/0x20
[  418.360831]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.366449]  ? oom_evaluate_task+0x302/0x540
[  418.370853]  out_of_memory+0xa84/0x1430
[  418.374839]  ? oom_killer_disable+0x3a0/0x3a0
[  418.379347]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  418.384277]  ? __ww_mutex_check_waiters+0x160/0x160
[  418.389311]  __alloc_pages_slowpath+0x2354/0x2e10
[  418.394171]  ? warn_alloc+0x120/0x120
[  418.397966]  ? mark_held_locks+0x130/0x130
[  418.402219]  ? find_get_entry+0xaae/0x1120
[  418.406454]  ? filemap_map_pages+0x1a20/0x1a20
[  418.411040]  ? zap_class+0x640/0x640
[  418.414753]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.420284]  ? check_preemption_disabled+0x48/0x280
[  418.425297]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.430828]  ? should_fail+0x22d/0xd01
[  418.434710]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  418.439824]  ? zap_class+0x640/0x640
[  418.443566]  ? __lock_is_held+0xb5/0x140
[  418.447640]  ? mark_held_locks+0x130/0x130
[  418.451867]  ? lock_release+0xa00/0xa00
[  418.455831]  ? perf_trace_sched_process_exec+0x860/0x860
[  418.461736]  ? xa_load+0x2ba/0x460
[  418.465275]  ? lock_downgrade+0x900/0x900
[  418.469427]  ? __might_sleep+0x95/0x190
[  418.473400]  __alloc_pages_nodemask+0xa80/0xde0
[  418.478201]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  418.483318]  ? __page_cache_alloc+0x191/0x5c0
[  418.487803]  ? xa_load+0x2e1/0x460
[  418.491340]  ? xa_clear_mark+0x40/0x40
[  418.495219]  ? zap_class+0x640/0x640
[  418.498931]  ? zap_class+0x640/0x640
[  418.502634]  ? zap_class+0x640/0x640
[  418.506339]  ? __do_page_cache_readahead+0x663/0x810
[  418.511441]  ? find_held_lock+0x36/0x1c0
[  418.515517]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  418.521060]  alloc_pages_current+0x173/0x350
[  418.525481]  __page_cache_alloc+0x38c/0x5c0
[  418.529795]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  418.534721]  ? kasan_check_read+0x11/0x20
[  418.538863]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.544151]  ? generic_perform_write+0x6a0/0x6a0
[  418.548901]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.554431]  ? check_preemption_disabled+0x48/0x280
[  418.560389]  filemap_fault+0x1595/0x25f0
[  418.564455]  ? __lock_page_or_retry+0xa00/0xa00
[  418.569119]  ? mark_held_locks+0x130/0x130
[  418.573353]  ? filemap_map_pages+0xd6b/0x1a20
[  418.577841]  ? lock_downgrade+0x900/0x900
[  418.581982]  ? check_preemption_disabled+0x48/0x280
[  418.586992]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  418.591922]  ? kasan_check_read+0x11/0x20
[  418.596062]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.601332]  ? rcu_softirq_qs+0x20/0x20
[  418.605305]  ? filemap_map_pages+0xd92/0x1a20
[  418.609801]  ? find_get_entries_tag+0x1400/0x1400
[  418.614636]  ? debug_object_destroy+0x2b0/0x2b0
[  418.619322]  ? lock_pi_update_atomic+0x150/0x150
[  418.624073]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.629620]  ? lock_acquire+0x1ed/0x520
[  418.633586]  ? ext4_filemap_fault+0x7a/0xad
[  418.637904]  ? lock_release+0xa00/0xa00
[  418.641871]  ? perf_trace_sched_process_exec+0x860/0x860
[  418.647312]  ? print_usage_bug+0xc0/0xc0
[  418.651367]  ? print_usage_bug+0xc0/0xc0
[  418.655430]  ? down_read+0x8d/0x120
[  418.659899]  ? ext4_filemap_fault+0x7a/0xad
[  418.664221]  ? __down_interruptible+0x700/0x700
[  418.668891]  ext4_filemap_fault+0x82/0xad
[  418.673039]  __do_fault+0x100/0x6b0
[  418.676680]  ? pmd_devmap_trans_unstable+0x220/0x220
[  418.681775]  ? mark_held_locks+0x130/0x130
[  418.686003]  ? mark_held_locks+0x130/0x130
[  418.690235]  ? do_raw_spin_trylock+0x270/0x270
[  418.694818]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.700357]  __handle_mm_fault+0x3ea0/0x5be0
[  418.704754]  ? perf_trace_lock+0x7a0/0x7a0
[  418.708989]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  418.713848]  ? __switch_to_asm+0x34/0x70
[  418.717901]  ? __switch_to_asm+0x34/0x70
[  418.721967]  ? zap_class+0x640/0x640
[  418.725672]  ? zap_class+0x640/0x640
[  418.729380]  ? __x64_sys_futex+0x53e/0x6a0
[  418.733611]  ? find_held_lock+0x36/0x1c0
[  418.737674]  ? handle_mm_fault+0x42a/0xc70
[  418.741904]  ? lock_downgrade+0x900/0x900
[  418.746046]  ? check_preemption_disabled+0x48/0x280
[  418.751055]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  418.755972]  ? kasan_check_read+0x11/0x20
[  418.760396]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.765667]  ? rcu_softirq_qs+0x20/0x20
[  418.769634]  ? trace_hardirqs_off_caller+0x310/0x310
[  418.774732]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.780265]  ? check_preemption_disabled+0x48/0x280
[  418.785364]  handle_mm_fault+0x54f/0xc70
[  418.789500]  ? __handle_mm_fault+0x5be0/0x5be0
[  418.794081]  ? find_vma+0x34/0x190
[  418.797622]  __do_page_fault+0x5e8/0xe60
[  418.801675]  ? trace_hardirqs_off+0xb8/0x310
[  418.806087]  do_page_fault+0xf2/0x7e0
[  418.809991]  ? vmalloc_sync_all+0x30/0x30
[  418.814137]  ? error_entry+0x70/0xd0
[  418.817843]  ? trace_hardirqs_off_caller+0xbb/0x310
[  418.822854]  ? trace_hardirqs_on_caller+0xc0/0x310
[  418.827775]  ? syscall_return_slowpath+0x5e0/0x5e0
[  418.832694]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.837531]  ? trace_hardirqs_on_caller+0x310/0x310
[  418.842545]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  418.847995]  ? prepare_exit_to_usermode+0x291/0x3b0
[  418.853021]  ? page_fault+0x8/0x30
[  418.856555]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.862200]  ? page_fault+0x8/0x30
[  418.865730]  page_fault+0x1e/0x30
[  418.869174] RIP: 0033:0x45ddf3
[  418.872376] Code: Bad RIP value.
[  418.875737] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  418.881092] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  418.888353] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  418.895613] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  418.902878] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  418.910137] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  418.917416] warn_alloc_show_mem: 1 callbacks suppressed
[  418.917425] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  418.917426] Mem-Info:
[  418.917456] active_anon:54141 inactive_anon:292 isolated_anon:0
[  418.917456]  active_file:12 inactive_file:13 isolated_file:0
[  418.917456]  unevictable:0 dirty:0 writeback:0 unstable:0
[  418.917456]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  418.917456]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  418.917456]  free:13705 free_pcp:178 free_cma:0
[  418.922787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  418.929540] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  418.931926] Call Trace:
[  418.965543] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  418.974902]  dump_stack+0x244/0x39d
[  419.002532] lowmem_reserve[]: 0 2818 6321 6321
[  419.005111]  ? dump_stack_print_info.cold.1+0x20/0x20
[  419.031188] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  419.034832]  warn_alloc.cold.116+0xb7/0x1bd
[  419.039376] lowmem_reserve[]: 0 0 3503 3503
[  419.044570]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  419.072837] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  419.077153]  ? lock_downgrade+0x900/0x900
[  419.081442] lowmem_reserve[]: 0 0 0 0
[  419.086276]  ? trace_hardirqs_off+0xb8/0x310
[  419.115211] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  419.119351]  ? trace_hardirqs_off+0xb8/0x310
[  419.123120] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  419.127522]  __alloc_pages_slowpath+0x26e8/0x2e10
[  419.141011] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  419.145432]  ? warn_alloc+0x120/0x120
[  419.161339] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  419.166165]  ? print_usage_bug+0xc0/0xc0
[  419.180439] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  419.184216]  ? warn_alloc+0x120/0x120
[  419.193024] 366 total pagecache pages
[  419.197069]  ? warn_alloc+0x120/0x120
[  419.205619] 0 pages in swap cache
[  419.209396]  ? print_usage_bug+0xc0/0xc0
[  419.213173] Swap cache stats: add 0, delete 0, find 0/0
[  419.216953]  ? print_usage_bug+0xc0/0xc0
[  419.220374] Free swap  = 0kB
[  419.224423]  ? __lock_acquire+0x62f/0x4c20
[  419.229757] Total swap = 0kB
[  419.233804]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.236788] 1965979 pages RAM
[  419.241017]  ? should_fail+0x22d/0xd01
[  419.244004] 0 pages HighMem/MovableOnly
[  419.244011] 342854 pages reserved
[  419.249532]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  419.252610] 0 pages cma reserved
[  419.256484]  ? __lock_acquire+0x62f/0x4c20
[  419.261020] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  419.264330]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  419.269400] syz-fuzzer cpuset=/ mems_allowed=0
[  419.272753]  ? __lock_acquire+0x62f/0x4c20
[  419.301029]  ? should_fail+0x22d/0xd01
[  419.304909]  ? find_held_lock+0x36/0x1c0
[  419.308982]  ? mark_held_locks+0x130/0x130
[  419.313220]  ? mark_held_locks+0x130/0x130
[  419.317447]  ? zap_class+0x640/0x640
[  419.321155]  ? mark_held_locks+0xc7/0x130
[  419.325301]  ? do_raw_spin_unlock+0xa7/0x330
[  419.329710]  ? zap_class+0x640/0x640
[  419.333417]  ? print_usage_bug+0xc0/0xc0
[  419.337477]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.343009]  ? check_preemption_disabled+0x48/0x280
[  419.348110]  ? __lock_is_held+0xb5/0x140
[  419.352174]  __alloc_pages_nodemask+0xa80/0xde0
[  419.356835]  ? zap_class+0x640/0x640
[  419.360902]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  419.365924]  ? find_held_lock+0x36/0x1c0
[  419.370000]  ? ____cache_alloc_node+0x1c7/0x1e0
[  419.374662]  ? lock_downgrade+0x900/0x900
[  419.378808]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.384345]  cache_grow_begin+0xa5/0x8c0
[  419.388414]  ? do_raw_spin_unlock+0xa7/0x330
[  419.392825]  fallback_alloc+0x204/0x2e0
[  419.396802]  ____cache_alloc_node+0x1c7/0x1e0
[  419.401297]  kmem_cache_alloc_node+0xe3/0x730
[  419.405786]  ? ipv6_get_ifaddr+0x42e/0x620
[  419.410022]  __alloc_skb+0x119/0x770
[  419.413729]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.419020]  ? netdev_alloc_frag+0x1f0/0x1f0
[  419.423420]  ? lock_downgrade+0x900/0x900
[  419.427565]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.433096]  ? refcount_sub_and_test_checked+0x203/0x310
[  419.438541]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  419.443994]  ? addrconf_rs_timer+0x690/0x690
[  419.448411]  ndisc_alloc_skb+0x144/0x340
[  419.452481]  ndisc_send_rs+0x331/0x6e0
[  419.456368]  addrconf_rs_timer+0x314/0x690
[  419.460898]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.465138]  call_timer_fn+0x272/0x920
[  419.469013]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.473239]  ? process_timeout+0x40/0x40
[  419.477298]  ? __run_timers+0x7da/0xc70
[  419.481266]  ? _raw_spin_unlock_irq+0x27/0x80
[  419.485757]  ? _raw_spin_unlock_irq+0x27/0x80
[  419.490246]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.494473]  ? lockdep_hardirqs_on+0x296/0x5b0
[  419.499050]  ? trace_hardirqs_on+0xbd/0x310
[  419.503366]  ? kasan_check_read+0x11/0x20
[  419.507509]  ? __run_timers+0x7da/0xc70
[  419.511479]  ? trace_hardirqs_off_caller+0x310/0x310
[  419.516579]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.520839]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.525068]  __run_timers+0x7e5/0xc70
[  419.528877]  ? timer_fixup_init+0x70/0x70
[  419.533017]  ? _raw_spin_unlock_irq+0x27/0x80
[  419.537515]  ? _raw_spin_unlock_irq+0x27/0x80
[  419.542004]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  419.546578]  ? trace_hardirqs_on+0xbd/0x310
[  419.550890]  ? kasan_check_read+0x11/0x20
[  419.555033]  ? finish_task_switch+0x1f4/0x910
[  419.559937]  ? trace_hardirqs_off_caller+0x310/0x310
[  419.565045]  ? compat_start_thread+0x80/0x80
[  419.569467]  ? pvclock_read_flags+0x160/0x160
[  419.573950]  ? __switch_to_asm+0x34/0x70
[  419.578012]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.583546]  ? check_preemption_disabled+0x48/0x280
[  419.588567]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  419.594095]  ? rcu_pm_notify+0xc0/0xc0
[  419.597987]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.603519]  ? check_preemption_disabled+0x48/0x280
[  419.608531]  run_timer_softirq+0x52/0xb0
[  419.612585]  ? rcu_read_lock_sched_held+0x14f/0x180
[  419.617599]  __do_softirq+0x308/0xb7e
[  419.621396]  ? trace_hardirqs_on_caller+0xc0/0x310
[  419.626326]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  419.631419]  ? trace_hardirqs_on+0x310/0x310
[  419.635829]  ? schedule+0x108/0x460
[  419.639461]  ? trace_hardirqs_off+0xb8/0x310
[  419.643864]  ? smpboot_thread_fn+0x68b/0xa00
[  419.648266]  ? trace_hardirqs_on+0x310/0x310
[  419.652670]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.658494]  ? check_preemption_disabled+0x48/0x280
[  419.663500]  ? takeover_tasklets+0xa90/0xa90
[  419.667903]  run_ksoftirqd+0x5e/0x100
[  419.671705]  smpboot_thread_fn+0x68b/0xa00
[  419.675933]  ? sort_range+0x30/0x30
[  419.679564]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  419.684661]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.690194]  ? __kthread_parkme+0xfb/0x1a0
[  419.694428]  ? sort_range+0x30/0x30
[  419.698046]  kthread+0x35a/0x440
[  419.701406]  ? kthread_stop+0x900/0x900
[  419.705377]  ret_from_fork+0x3a/0x50
[  419.709101] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  419.709172] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  419.716023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  419.716028] Call Trace:
[  419.716034]  <IRQ>
[  419.716051]  dump_stack+0x244/0x39d
[  419.716069]  ? dump_stack_print_info.cold.1+0x20/0x20
[  419.722604] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  419.731882]  warn_alloc.cold.116+0xb7/0x1bd
[  419.734433] ksoftirqd/0 cpuset=/ mems_allowed=0
[  419.736569]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  419.770198]  ? lock_downgrade+0x900/0x900
[  419.774349]  ? trace_hardirqs_off+0xb8/0x310
[  419.778754]  ? trace_hardirqs_off+0xb8/0x310
[  419.783162]  __alloc_pages_slowpath+0x26e8/0x2e10
[  419.788024]  ? warn_alloc+0x120/0x120
[  419.791824]  ? warn_alloc+0x120/0x120
[  419.795619]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  419.800627]  ? warn_alloc+0x120/0x120
[  419.804421]  ? print_usage_bug+0xc0/0xc0
[  419.808482]  ? print_usage_bug+0xc0/0xc0
[  419.812538]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  419.817727]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.823261]  ? should_fail+0x22d/0xd01
[  419.827149]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  419.832246]  ? __lock_acquire+0x62f/0x4c20
[  419.836480]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  419.841573]  ? should_fail+0x22d/0xd01
[  419.845465]  ? mark_held_locks+0x130/0x130
[  419.849693]  ? mark_held_locks+0x130/0x130
[  419.853920]  ? print_usage_bug+0xc0/0xc0
[  419.858016]  ? find_held_lock+0x36/0x1c0
[  419.862813]  ? zap_class+0x640/0x640
[  419.866530]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.872075]  ? check_preemption_disabled+0x48/0x280
[  419.877096]  ? __lock_is_held+0xb5/0x140
[  419.881153]  __alloc_pages_nodemask+0xa80/0xde0
[  419.885816]  ? zap_class+0x640/0x640
[  419.889526]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  419.894543]  ? find_held_lock+0x36/0x1c0
[  419.898606]  ? ____cache_alloc_node+0x1c7/0x1e0
[  419.903282]  ? lock_downgrade+0x900/0x900
[  419.907430]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.912969]  cache_grow_begin+0xa5/0x8c0
[  419.917028]  ? do_raw_spin_unlock+0xa7/0x330
[  419.921439]  fallback_alloc+0x204/0x2e0
[  419.925415]  ____cache_alloc_node+0x1c7/0x1e0
[  419.930391]  kmem_cache_alloc_node+0xe3/0x730
[  419.934882]  ? mark_held_locks+0xc7/0x130
[  419.939036]  __alloc_skb+0x119/0x770
[  419.942747]  ? netdev_alloc_frag+0x1f0/0x1f0
[  419.947151]  ? do_raw_spin_trylock+0x270/0x270
[  419.951723]  ? kmem_cache_alloc_trace+0x353/0x750
[  419.956561]  ? queue_work_on+0x12c/0x1e0
[  419.961599]  ? switchdev_port_obj_del+0xdc/0x440
[  419.966347]  ? switchdev_trans_item_enqueue+0x260/0x260
[  419.971718]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  419.976735]  __br_mdb_notify+0x4ff/0x15d0
[  419.980872]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  419.985980]  ? __br_mdb_add+0x7f0/0x7f0
[  419.989964]  ? mark_held_locks+0x130/0x130
[  419.994211]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  419.999311]  ? debug_object_assert_init+0x368/0x4b0
[  420.004324]  ? debug_object_init_on_stack+0x20/0x20
[  420.009331]  ? zap_class+0x640/0x640
[  420.013041]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.018583]  br_mdb_notify+0x310/0x410
[  420.022465]  ? br_mdb_dump+0x27b0/0x27b0
[  420.026528]  br_multicast_del_pg+0x3df/0x790
[  420.030944]  ? br_mdb_ip_get+0x940/0x940
[  420.035009]  ? rwlock_bug.part.2+0x90/0x90
[  420.039241]  ? __lock_is_held+0xb5/0x140
[  420.043302]  br_multicast_port_group_expired+0x189/0x1e0
[  420.048751]  call_timer_fn+0x272/0x920
[  420.052631]  ? br_multicast_del_pg+0x790/0x790
[  420.057218]  ? process_timeout+0x40/0x40
[  420.062017]  ? mark_held_locks+0xc7/0x130
[  420.066158]  ? _raw_spin_unlock_irq+0x27/0x80
[  420.070644]  ? _raw_spin_unlock_irq+0x27/0x80
[  420.075130]  ? br_multicast_del_pg+0x790/0x790
[  420.079712]  ? lockdep_hardirqs_on+0x296/0x5b0
[  420.084292]  ? trace_hardirqs_on+0xbd/0x310
[  420.088603]  ? kasan_check_read+0x11/0x20
[  420.092742]  ? __run_timers+0x7da/0xc70
[  420.096725]  ? trace_hardirqs_off_caller+0x310/0x310
[  420.101825]  ? br_multicast_del_pg+0x790/0x790
[  420.106406]  ? br_multicast_del_pg+0x790/0x790
[  420.110977]  __run_timers+0x7e5/0xc70
[  420.114790]  ? timer_fixup_init+0x70/0x70
[  420.118939]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  420.123954]  ? zap_class+0x640/0x640
[  420.127681]  ? print_usage_bug+0xc0/0xc0
[  420.131737]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  420.136928]  ? find_held_lock+0x36/0x1c0
[  420.140986]  ? zap_class+0x640/0x640
[  420.144696]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.150226]  ? check_preemption_disabled+0x48/0x280
[  420.155253]  ? __lock_is_held+0xb5/0x140
[  420.160266]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.165800]  ? check_preemption_disabled+0x48/0x280
[  420.170816]  run_timer_softirq+0x52/0xb0
[  420.174871]  ? rcu_read_lock_sched_held+0x14f/0x180
[  420.179892]  __do_softirq+0x308/0xb7e
[  420.183693]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  420.188178]  ? lock_downgrade+0x900/0x900
[  420.192319]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  420.197419]  ? pvclock_read_flags+0x160/0x160
[  420.201938]  ? lapic_next_event+0x5a/0x90
[  420.206082]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.211620]  ? kvm_clock_read+0x18/0x30
[  420.215585]  ? kvm_sched_clock_read+0x9/0x20
[  420.220076]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.225607]  ? check_preemption_disabled+0x48/0x280
[  420.230624]  irq_exit+0x17f/0x1c0
[  420.234076]  smp_apic_timer_interrupt+0x1cb/0x760
[  420.238919]  ? smp_reschedule_interrupt+0x109/0x650
[  420.243936]  ? smp_call_function_single_interrupt+0x650/0x650
[  420.249815]  ? interrupt_entry+0xb5/0xc0
[  420.253870]  ? trace_hardirqs_off_caller+0xbb/0x310
[  420.259652]  ? trace_hardirqs_off_caller+0xbb/0x310
[  420.264661]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  420.269493]  ? trace_hardirqs_on_caller+0x310/0x310
[  420.274616]  ? trace_hardirqs_on_caller+0x310/0x310
[  420.279626]  ? task_prio+0x50/0x50
[  420.283165]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.288693]  ? check_preemption_disabled+0x48/0x280
[  420.293705]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  420.298551]  apic_timer_interrupt+0xf/0x20
[  420.302770]  </IRQ>
[  420.305001] RIP: 0010:dump_stack+0x358/0x39d
[  420.309403] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  420.328302] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  420.336003] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  420.343338] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  420.350601] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  420.357862] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  420.365999] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  420.373278]  ? dump_stack+0x34f/0x39d
[  420.377087]  ? dump_stack_print_info.cold.1+0x20/0x20
[  420.382272]  ? mark_held_locks+0x130/0x130
[  420.386497]  ? mark_held_locks+0x130/0x130
[  420.390727]  dump_header+0x27b/0xf72
[  420.394451]  ? pagefault_out_of_memory+0x197/0x197
[  420.399485]  ? __lock_acquire+0x62f/0x4c20
[  420.403728]  ? percpu_ref_get_many+0x240/0x240
[  420.408307]  ? print_usage_bug+0xc0/0xc0
[  420.412367]  ? zap_class+0x640/0x640
[  420.416076]  ? print_usage_bug+0xc0/0xc0
[  420.420128]  ? print_usage_bug+0xc0/0xc0
[  420.424179]  ? zap_class+0x640/0x640
[  420.427890]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.433437]  ? find_held_lock+0x36/0x1c0
[  420.437496]  ? mark_held_locks+0xc7/0x130
[  420.441640]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  420.446733]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  420.451845]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  420.456426]  ? trace_hardirqs_on+0xbd/0x310
[  420.461558]  ? kasan_check_read+0x11/0x20
[  420.465703]  ? ___ratelimit+0x3b4/0x672
[  420.469670]  ? trace_hardirqs_off_caller+0x310/0x310
[  420.474766]  ? trace_hardirqs_on+0x310/0x310
[  420.479183]  ? lock_downgrade+0x900/0x900
[  420.483324]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  420.488422]  ? ___ratelimit+0x3b9/0x672
[  420.492467]  ? idr_get_free+0xf70/0xf70
[  420.496436]  ? find_held_lock+0x36/0x1c0
[  420.500497]  oom_kill_process.cold.27+0x10/0x903
[  420.505242]  ? zap_class+0x640/0x640
[  420.508948]  ? check_preemption_disabled+0x48/0x280
[  420.513960]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  420.518883]  ? kasan_check_read+0x11/0x20
[  420.523041]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.528309]  ? oom_evaluate_task+0x540/0x540
[  420.532710]  ? find_held_lock+0x36/0x1c0
[  420.536772]  ? out_of_memory+0x974/0x1430
[  420.540919]  ? lock_downgrade+0x900/0x900
[  420.545063]  ? check_preemption_disabled+0x48/0x280
[  420.550073]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  420.554994]  ? kasan_check_read+0x11/0x20
[  420.559897]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.565162]  ? rcu_softirq_qs+0x20/0x20
[  420.569145]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.574672]  ? oom_evaluate_task+0x302/0x540
[  420.579072]  out_of_memory+0xa84/0x1430
[  420.583046]  ? oom_killer_disable+0x3a0/0x3a0
[  420.587537]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  420.592466]  ? __ww_mutex_check_waiters+0x160/0x160
[  420.597496]  __alloc_pages_slowpath+0x2354/0x2e10
[  420.602352]  ? warn_alloc+0x120/0x120
[  420.606142]  ? mark_held_locks+0x130/0x130
[  420.610376]  ? find_get_entry+0xaae/0x1120
[  420.614614]  ? filemap_map_pages+0x1a20/0x1a20
[  420.619190]  ? zap_class+0x640/0x640
[  420.622909]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.628437]  ? check_preemption_disabled+0x48/0x280
[  420.633445]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.638974]  ? should_fail+0x22d/0xd01
[  420.642860]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  420.647966]  ? zap_class+0x640/0x640
[  420.651693]  ? __lock_is_held+0xb5/0x140
[  420.655758]  ? mark_held_locks+0x130/0x130
[  420.660766]  ? lock_release+0xa00/0xa00
[  420.664730]  ? perf_trace_sched_process_exec+0x860/0x860
[  420.670173]  ? xa_load+0x2ba/0x460
[  420.673710]  ? lock_downgrade+0x900/0x900
[  420.677849]  ? __might_sleep+0x95/0x190
[  420.681823]  __alloc_pages_nodemask+0xa80/0xde0
[  420.686490]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  420.691498]  ? __page_cache_alloc+0x191/0x5c0
[  420.695988]  ? xa_load+0x2e1/0x460
[  420.699521]  ? xa_clear_mark+0x40/0x40
[  420.703403]  ? zap_class+0x640/0x640
[  420.707114]  ? zap_class+0x640/0x640
[  420.710820]  ? zap_class+0x640/0x640
[  420.714525]  ? __do_page_cache_readahead+0x663/0x810
[  420.719624]  ? find_held_lock+0x36/0x1c0
[  420.723683]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  420.729220]  alloc_pages_current+0x173/0x350
[  420.733624]  __page_cache_alloc+0x38c/0x5c0
[  420.737939]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  420.742862]  ? kasan_check_read+0x11/0x20
[  420.747035]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.752308]  ? generic_perform_write+0x6a0/0x6a0
[  420.757053]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.763054]  ? check_preemption_disabled+0x48/0x280
[  420.768070]  filemap_fault+0x1595/0x25f0
[  420.772139]  ? __lock_page_or_retry+0xa00/0xa00
[  420.776807]  ? mark_held_locks+0x130/0x130
[  420.781043]  ? filemap_map_pages+0xd6b/0x1a20
[  420.785548]  ? lock_downgrade+0x900/0x900
[  420.789688]  ? check_preemption_disabled+0x48/0x280
[  420.794700]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  420.799622]  ? kasan_check_read+0x11/0x20
[  420.803761]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.809031]  ? rcu_softirq_qs+0x20/0x20
[  420.813009]  ? filemap_map_pages+0xd92/0x1a20
[  420.817505]  ? find_get_entries_tag+0x1400/0x1400
[  420.822428]  ? debug_object_destroy+0x2b0/0x2b0
[  420.827092]  ? lock_pi_update_atomic+0x150/0x150
[  420.831844]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.837394]  ? lock_acquire+0x1ed/0x520
[  420.841363]  ? ext4_filemap_fault+0x7a/0xad
[  420.845684]  ? lock_release+0xa00/0xa00
[  420.849652]  ? perf_trace_sched_process_exec+0x860/0x860
[  420.855097]  ? print_usage_bug+0xc0/0xc0
[  420.859968]  ? print_usage_bug+0xc0/0xc0
[  420.864034]  ? down_read+0x8d/0x120
[  420.867656]  ? ext4_filemap_fault+0x7a/0xad
[  420.871982]  ? __down_interruptible+0x700/0x700
[  420.876654]  ext4_filemap_fault+0x82/0xad
[  420.880797]  __do_fault+0x100/0x6b0
[  420.884435]  ? pmd_devmap_trans_unstable+0x220/0x220
[  420.889538]  ? mark_held_locks+0x130/0x130
[  420.893768]  ? mark_held_locks+0x130/0x130
[  420.897994]  ? do_raw_spin_trylock+0x270/0x270
[  420.902578]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.908110]  __handle_mm_fault+0x3ea0/0x5be0
[  420.912515]  ? perf_trace_lock+0x7a0/0x7a0
[  420.916749]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  420.921587]  ? __switch_to_asm+0x34/0x70
[  420.925639]  ? __switch_to_asm+0x34/0x70
[  420.929702]  ? zap_class+0x640/0x640
[  420.933411]  ? zap_class+0x640/0x640
[  420.937117]  ? __x64_sys_futex+0x53e/0x6a0
[  420.941345]  ? find_held_lock+0x36/0x1c0
[  420.945409]  ? handle_mm_fault+0x42a/0xc70
[  420.949638]  ? lock_downgrade+0x900/0x900
[  420.953776]  ? check_preemption_disabled+0x48/0x280
[  420.959521]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  420.964440]  ? kasan_check_read+0x11/0x20
[  420.968578]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.973845]  ? rcu_softirq_qs+0x20/0x20
[  420.977818]  ? trace_hardirqs_off_caller+0x310/0x310
[  420.982916]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.988444]  ? check_preemption_disabled+0x48/0x280
[  420.993456]  handle_mm_fault+0x54f/0xc70
[  420.997511]  ? __handle_mm_fault+0x5be0/0x5be0
[  421.002088]  ? find_vma+0x34/0x190
[  421.005624]  __do_page_fault+0x5e8/0xe60
[  421.009678]  ? trace_hardirqs_off+0xb8/0x310
[  421.014085]  do_page_fault+0xf2/0x7e0
[  421.017886]  ? vmalloc_sync_all+0x30/0x30
[  421.022025]  ? error_entry+0x70/0xd0
[  421.025735]  ? trace_hardirqs_off_caller+0xbb/0x310
[  421.030743]  ? trace_hardirqs_on_caller+0xc0/0x310
[  421.035681]  ? syscall_return_slowpath+0x5e0/0x5e0
[  421.040600]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  421.045439]  ? trace_hardirqs_on_caller+0x310/0x310
[  421.050546]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  421.055991]  ? prepare_exit_to_usermode+0x291/0x3b0
[  421.061791]  ? page_fault+0x8/0x30
[  421.065338]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  421.070174]  ? page_fault+0x8/0x30
[  421.073706]  page_fault+0x1e/0x30
[  421.077152] RIP: 0033:0x45ddf3
[  421.080352] Code: Bad RIP value.
[  421.083709] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  421.089064] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  421.096322] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  421.103580] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  421.110839] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  421.118108] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  421.125397] warn_alloc_show_mem: 1 callbacks suppressed
[  421.125406] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  421.125407] Mem-Info:
[  421.125435] active_anon:54141 inactive_anon:292 isolated_anon:0
[  421.125435]  active_file:12 inactive_file:13 isolated_file:0
[  421.125435]  unevictable:0 dirty:0 writeback:0 unstable:0
[  421.125435]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  421.125435]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  421.125435]  free:13705 free_pcp:178 free_cma:0
[  421.130770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  421.137516] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  421.139907] Call Trace:
[  421.173736] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  421.183090]  dump_stack+0x244/0x39d
[  421.210727] lowmem_reserve[]: 0 2818 6321 6321
[  421.213303]  ? dump_stack_print_info.cold.1+0x20/0x20
[  421.239379] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  421.243001]  warn_alloc.cold.116+0xb7/0x1bd
[  421.247538] lowmem_reserve[]: 0 0 3503 3503
[  421.252740]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  421.280725] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  421.285037]  ? lock_downgrade+0x900/0x900
[  421.289322] lowmem_reserve[]: 0 0 0 0
[  421.294164]  ? trace_hardirqs_off+0xb8/0x310
[  421.323285] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  421.327426]  ? trace_hardirqs_off+0xb8/0x310
[  421.331194] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  421.335598]  __alloc_pages_slowpath+0x26e8/0x2e10
[  421.349078] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  421.353503]  ? warn_alloc+0x120/0x120
[  421.369472] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  421.374295]  ? print_usage_bug+0xc0/0xc0
[  421.388485] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  421.392268]  ? warn_alloc+0x120/0x120
[  421.401072] 366 total pagecache pages
[  421.405118]  ? warn_alloc+0x120/0x120
[  421.413670] 0 pages in swap cache
[  421.417447]  ? print_usage_bug+0xc0/0xc0
[  421.421220] Swap cache stats: add 0, delete 0, find 0/0
[  421.425009]  ? print_usage_bug+0xc0/0xc0
[  421.428429] Free swap  = 0kB
[  421.432472]  ? __lock_acquire+0x62f/0x4c20
[  421.437805] Total swap = 0kB
[  421.441864]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.444852] 1965979 pages RAM
[  421.444863] 0 pages HighMem/MovableOnly
[  421.449086]  ? should_fail+0x22d/0xd01
[  421.452070] 342854 pages reserved
[  421.452076] 0 pages cma reserved
[  421.457597]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  421.461604] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  421.465432]  ? __lock_acquire+0x62f/0x4c20
[  421.469290] syz-fuzzer cpuset=/ mems_allowed=0
[  421.472725]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  421.505195]  ? __lock_acquire+0x62f/0x4c20
[  421.509425]  ? should_fail+0x22d/0xd01
[  421.513304]  ? find_held_lock+0x36/0x1c0
[  421.517361]  ? mark_held_locks+0x130/0x130
[  421.521588]  ? mark_held_locks+0x130/0x130
[  421.525910]  ? zap_class+0x640/0x640
[  421.529622]  ? mark_held_locks+0xc7/0x130
[  421.533762]  ? do_raw_spin_unlock+0xa7/0x330
[  421.538160]  ? zap_class+0x640/0x640
[  421.541872]  ? print_usage_bug+0xc0/0xc0
[  421.545930]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.551456]  ? check_preemption_disabled+0x48/0x280
[  421.556467]  ? __lock_is_held+0xb5/0x140
[  421.561868]  __alloc_pages_nodemask+0xa80/0xde0
[  421.566529]  ? zap_class+0x640/0x640
[  421.570236]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  421.575254]  ? find_held_lock+0x36/0x1c0
[  421.579317]  ? ____cache_alloc_node+0x1c7/0x1e0
[  421.583976]  ? lock_downgrade+0x900/0x900
[  421.588142]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.593678]  cache_grow_begin+0xa5/0x8c0
[  421.597758]  ? do_raw_spin_unlock+0xa7/0x330
[  421.602165]  fallback_alloc+0x204/0x2e0
[  421.606135]  ____cache_alloc_node+0x1c7/0x1e0
[  421.610631]  kmem_cache_alloc_node+0xe3/0x730
[  421.615120]  ? ipv6_get_ifaddr+0x42e/0x620
[  421.619353]  __alloc_skb+0x119/0x770
[  421.623054]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.628324]  ? netdev_alloc_frag+0x1f0/0x1f0
[  421.632740]  ? lock_downgrade+0x900/0x900
[  421.636885]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.642414]  ? refcount_sub_and_test_checked+0x203/0x310
[  421.647861]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  421.653303]  ? addrconf_rs_timer+0x690/0x690
[  421.657713]  ndisc_alloc_skb+0x144/0x340
[  421.662040]  ndisc_send_rs+0x331/0x6e0
[  421.665948]  addrconf_rs_timer+0x314/0x690
[  421.670181]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.674415]  call_timer_fn+0x272/0x920
[  421.678291]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.682526]  ? process_timeout+0x40/0x40
[  421.686585]  ? __run_timers+0x7da/0xc70
[  421.690551]  ? _raw_spin_unlock_irq+0x27/0x80
[  421.695039]  ? _raw_spin_unlock_irq+0x27/0x80
[  421.699534]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.703759]  ? lockdep_hardirqs_on+0x296/0x5b0
[  421.708335]  ? trace_hardirqs_on+0xbd/0x310
[  421.712649]  ? kasan_check_read+0x11/0x20
[  421.716786]  ? __run_timers+0x7da/0xc70
[  421.720748]  ? trace_hardirqs_off_caller+0x310/0x310
[  421.725863]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.730094]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.734319]  __run_timers+0x7e5/0xc70
[  421.738118]  ? timer_fixup_init+0x70/0x70
[  421.742252]  ? _raw_spin_unlock_irq+0x27/0x80
[  421.746732]  ? _raw_spin_unlock_irq+0x27/0x80
[  421.751218]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  421.755791]  ? trace_hardirqs_on+0xbd/0x310
[  421.760855]  ? kasan_check_read+0x11/0x20
[  421.764998]  ? finish_task_switch+0x1f4/0x910
[  421.769491]  ? trace_hardirqs_off_caller+0x310/0x310
[  421.774585]  ? compat_start_thread+0x80/0x80
[  421.779005]  ? pvclock_read_flags+0x160/0x160
[  421.783492]  ? __switch_to_asm+0x34/0x70
[  421.787542]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.793074]  ? check_preemption_disabled+0x48/0x280
[  421.798092]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  421.803622]  ? rcu_pm_notify+0xc0/0xc0
[  421.807503]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.813029]  ? check_preemption_disabled+0x48/0x280
[  421.818041]  run_timer_softirq+0x52/0xb0
[  421.822093]  ? rcu_read_lock_sched_held+0x14f/0x180
[  421.827099]  __do_softirq+0x308/0xb7e
[  421.830894]  ? trace_hardirqs_on_caller+0xc0/0x310
[  421.835833]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  421.840929]  ? trace_hardirqs_on+0x310/0x310
[  421.845336]  ? schedule+0x108/0x460
[  421.848962]  ? trace_hardirqs_off+0xb8/0x310
[  421.853364]  ? smpboot_thread_fn+0x68b/0xa00
[  421.857773]  ? trace_hardirqs_on+0x310/0x310
[  421.862532]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.868063]  ? check_preemption_disabled+0x48/0x280
[  421.873091]  ? takeover_tasklets+0xa90/0xa90
[  421.877494]  run_ksoftirqd+0x5e/0x100
[  421.881286]  smpboot_thread_fn+0x68b/0xa00
[  421.885518]  ? sort_range+0x30/0x30
[  421.889144]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  421.894242]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.899795]  ? __kthread_parkme+0xfb/0x1a0
[  421.904044]  ? sort_range+0x30/0x30
[  421.907663]  kthread+0x35a/0x440
[  421.911022]  ? kthread_stop+0x900/0x900
[  421.914991]  ret_from_fork+0x3a/0x50
[  421.918720] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  421.918786] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  421.925640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  421.925646] Call Trace:
[  421.925651]  <IRQ>
[  421.925667]  dump_stack+0x244/0x39d
[  421.925686]  ? dump_stack_print_info.cold.1+0x20/0x20
[  421.932449] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  421.941721]  warn_alloc.cold.116+0xb7/0x1bd
[  421.944263] ksoftirqd/0 cpuset=/ mems_allowed=0
[  421.946402]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  421.979714]  ? lock_downgrade+0x900/0x900
[  421.983859]  ? trace_hardirqs_off+0xb8/0x310
[  421.988264]  ? trace_hardirqs_off+0xb8/0x310
[  421.992668]  __alloc_pages_slowpath+0x26e8/0x2e10
[  421.997528]  ? warn_alloc+0x120/0x120
[  422.001329]  ? warn_alloc+0x120/0x120
[  422.005139]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  422.010147]  ? warn_alloc+0x120/0x120
[  422.013942]  ? print_usage_bug+0xc0/0xc0
[  422.017999]  ? print_usage_bug+0xc0/0xc0
[  422.022052]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  422.027242]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.032774]  ? should_fail+0x22d/0xd01
[  422.036664]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  422.041760]  ? __lock_acquire+0x62f/0x4c20
[  422.045992]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  422.051082]  ? should_fail+0x22d/0xd01
[  422.055058]  ? mark_held_locks+0x130/0x130
[  422.060063]  ? mark_held_locks+0x130/0x130
[  422.064294]  ? print_usage_bug+0xc0/0xc0
[  422.068355]  ? find_held_lock+0x36/0x1c0
[  422.072408]  ? zap_class+0x640/0x640
[  422.076122]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.081651]  ? check_preemption_disabled+0x48/0x280
[  422.086669]  ? __lock_is_held+0xb5/0x140
[  422.090742]  __alloc_pages_nodemask+0xa80/0xde0
[  422.095406]  ? zap_class+0x640/0x640
[  422.099115]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  422.104133]  ? find_held_lock+0x36/0x1c0
[  422.108193]  ? ____cache_alloc_node+0x1c7/0x1e0
[  422.112853]  ? lock_downgrade+0x900/0x900
[  422.116999]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.122533]  cache_grow_begin+0xa5/0x8c0
[  422.126664]  ? do_raw_spin_unlock+0xa7/0x330
[  422.131073]  fallback_alloc+0x204/0x2e0
[  422.135087]  ____cache_alloc_node+0x1c7/0x1e0
[  422.139574]  kmem_cache_alloc_node+0xe3/0x730
[  422.144057]  ? mark_held_locks+0xc7/0x130
[  422.148204]  __alloc_skb+0x119/0x770
[  422.151918]  ? netdev_alloc_frag+0x1f0/0x1f0
[  422.156335]  ? do_raw_spin_trylock+0x270/0x270
[  422.161708]  ? kmem_cache_alloc_trace+0x353/0x750
[  422.166562]  ? queue_work_on+0x12c/0x1e0
[  422.170624]  ? switchdev_port_obj_del+0xdc/0x440
[  422.175377]  ? switchdev_trans_item_enqueue+0x260/0x260
[  422.180737]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  422.185758]  __br_mdb_notify+0x4ff/0x15d0
[  422.189903]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  422.195010]  ? __br_mdb_add+0x7f0/0x7f0
[  422.198984]  ? mark_held_locks+0x130/0x130
[  422.203219]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  422.208318]  ? debug_object_assert_init+0x368/0x4b0
[  422.213331]  ? debug_object_init_on_stack+0x20/0x20
[  422.218340]  ? zap_class+0x640/0x640
[  422.222049]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.227587]  br_mdb_notify+0x310/0x410
[  422.231466]  ? br_mdb_dump+0x27b0/0x27b0
[  422.235532]  br_multicast_del_pg+0x3df/0x790
[  422.239939]  ? br_mdb_ip_get+0x940/0x940
[  422.243988]  ? rwlock_bug.part.2+0x90/0x90
[  422.248222]  ? __lock_is_held+0xb5/0x140
[  422.252283]  br_multicast_port_group_expired+0x189/0x1e0
[  422.257733]  call_timer_fn+0x272/0x920
[  422.262387]  ? br_multicast_del_pg+0x790/0x790
[  422.266962]  ? process_timeout+0x40/0x40
[  422.271025]  ? mark_held_locks+0xc7/0x130
[  422.275179]  ? _raw_spin_unlock_irq+0x27/0x80
[  422.279667]  ? _raw_spin_unlock_irq+0x27/0x80
[  422.284155]  ? br_multicast_del_pg+0x790/0x790
[  422.288731]  ? lockdep_hardirqs_on+0x296/0x5b0
[  422.293310]  ? trace_hardirqs_on+0xbd/0x310
[  422.297631]  ? kasan_check_read+0x11/0x20
[  422.301768]  ? __run_timers+0x7da/0xc70
[  422.305744]  ? trace_hardirqs_off_caller+0x310/0x310
[  422.310846]  ? br_multicast_del_pg+0x790/0x790
[  422.315424]  ? br_multicast_del_pg+0x790/0x790
[  422.320010]  __run_timers+0x7e5/0xc70
[  422.323815]  ? timer_fixup_init+0x70/0x70
[  422.327956]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  422.332965]  ? zap_class+0x640/0x640
[  422.336677]  ? print_usage_bug+0xc0/0xc0
[  422.340733]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  422.345924]  ? find_held_lock+0x36/0x1c0
[  422.349982]  ? zap_class+0x640/0x640
[  422.353688]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.360303]  ? check_preemption_disabled+0x48/0x280
[  422.365324]  ? __lock_is_held+0xb5/0x140
[  422.369380]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.374908]  ? check_preemption_disabled+0x48/0x280
[  422.379925]  run_timer_softirq+0x52/0xb0
[  422.383980]  ? rcu_read_lock_sched_held+0x14f/0x180
[  422.388993]  __do_softirq+0x308/0xb7e
[  422.392800]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  422.397286]  ? lock_downgrade+0x900/0x900
[  422.401433]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  422.406538]  ? pvclock_read_flags+0x160/0x160
[  422.411043]  ? lapic_next_event+0x5a/0x90
[  422.415183]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.420715]  ? kvm_clock_read+0x18/0x30
[  422.424682]  ? kvm_sched_clock_read+0x9/0x20
[  422.429079]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.434605]  ? check_preemption_disabled+0x48/0x280
[  422.439619]  irq_exit+0x17f/0x1c0
[  422.443068]  smp_apic_timer_interrupt+0x1cb/0x760
[  422.447902]  ? smp_reschedule_interrupt+0x109/0x650
[  422.452909]  ? smp_call_function_single_interrupt+0x650/0x650
[  422.459781]  ? interrupt_entry+0xb5/0xc0
[  422.463841]  ? trace_hardirqs_off_caller+0xbb/0x310
[  422.468847]  ? trace_hardirqs_off_caller+0xbb/0x310
[  422.473859]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.478698]  ? trace_hardirqs_on_caller+0x310/0x310
[  422.483706]  ? trace_hardirqs_on_caller+0x310/0x310
[  422.488730]  ? task_prio+0x50/0x50
[  422.492353]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.497886]  ? check_preemption_disabled+0x48/0x280
[  422.502896]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.507737]  apic_timer_interrupt+0xf/0x20
[  422.511957]  </IRQ>
[  422.514190] RIP: 0010:dump_stack+0x358/0x39d
[  422.518593] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  422.537486] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  422.545185] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  422.552447] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  422.560451] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  422.567712] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  422.574971] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  422.582246]  ? dump_stack+0x34f/0x39d
[  422.586052]  ? dump_stack_print_info.cold.1+0x20/0x20
[  422.591240]  ? mark_held_locks+0x130/0x130
[  422.595468]  ? mark_held_locks+0x130/0x130
[  422.599697]  dump_header+0x27b/0xf72
[  422.603410]  ? pagefault_out_of_memory+0x197/0x197
[  422.608340]  ? __lock_acquire+0x62f/0x4c20
[  422.612565]  ? percpu_ref_get_many+0x240/0x240
[  422.617139]  ? print_usage_bug+0xc0/0xc0
[  422.621196]  ? zap_class+0x640/0x640
[  422.624920]  ? print_usage_bug+0xc0/0xc0
[  422.628973]  ? print_usage_bug+0xc0/0xc0
[  422.633029]  ? zap_class+0x640/0x640
[  422.636737]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.642282]  ? find_held_lock+0x36/0x1c0
[  422.646343]  ? mark_held_locks+0xc7/0x130
[  422.650482]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  422.655573]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  422.661299]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  422.665894]  ? trace_hardirqs_on+0xbd/0x310
[  422.670210]  ? kasan_check_read+0x11/0x20
[  422.674347]  ? ___ratelimit+0x3b4/0x672
[  422.678311]  ? trace_hardirqs_off_caller+0x310/0x310
[  422.683402]  ? trace_hardirqs_on+0x310/0x310
[  422.687802]  ? lock_downgrade+0x900/0x900
[  422.691943]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  422.697037]  ? ___ratelimit+0x3b9/0x672
[  422.701002]  ? idr_get_free+0xf70/0xf70
[  422.704969]  ? find_held_lock+0x36/0x1c0
[  422.709032]  oom_kill_process.cold.27+0x10/0x903
[  422.713782]  ? zap_class+0x640/0x640
[  422.717486]  ? check_preemption_disabled+0x48/0x280
[  422.722500]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  422.727419]  ? kasan_check_read+0x11/0x20
[  422.731560]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  422.736828]  ? oom_evaluate_task+0x540/0x540
[  422.741247]  ? find_held_lock+0x36/0x1c0
[  422.745307]  ? out_of_memory+0x974/0x1430
[  422.749450]  ? lock_downgrade+0x900/0x900
[  422.753590]  ? check_preemption_disabled+0x48/0x280
[  422.759412]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  422.764331]  ? kasan_check_read+0x11/0x20
[  422.768469]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  422.773737]  ? rcu_softirq_qs+0x20/0x20
[  422.777713]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.783240]  ? oom_evaluate_task+0x302/0x540
[  422.787648]  out_of_memory+0xa84/0x1430
[  422.791626]  ? oom_killer_disable+0x3a0/0x3a0
[  422.796114]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  422.801040]  ? __ww_mutex_check_waiters+0x160/0x160
[  422.806058]  __alloc_pages_slowpath+0x2354/0x2e10
[  422.810917]  ? warn_alloc+0x120/0x120
[  422.814710]  ? mark_held_locks+0x130/0x130
[  422.818942]  ? find_get_entry+0xaae/0x1120
[  422.823176]  ? filemap_map_pages+0x1a20/0x1a20
[  422.827761]  ? zap_class+0x640/0x640
[  422.831470]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.837005]  ? check_preemption_disabled+0x48/0x280
[  422.842014]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.847542]  ? should_fail+0x22d/0xd01
[  422.851423]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  422.856521]  ? zap_class+0x640/0x640
[  422.861083]  ? __lock_is_held+0xb5/0x140
[  422.865146]  ? mark_held_locks+0x130/0x130
[  422.869391]  ? lock_release+0xa00/0xa00
[  422.873361]  ? perf_trace_sched_process_exec+0x860/0x860
[  422.878801]  ? xa_load+0x2ba/0x460
[  422.882339]  ? lock_downgrade+0x900/0x900
[  422.886487]  ? __might_sleep+0x95/0x190
[  422.890471]  __alloc_pages_nodemask+0xa80/0xde0
[  422.895136]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  422.900145]  ? __page_cache_alloc+0x191/0x5c0
[  422.904631]  ? xa_load+0x2e1/0x460
[  422.908185]  ? xa_clear_mark+0x40/0x40
[  422.912070]  ? zap_class+0x640/0x640
[  422.915789]  ? zap_class+0x640/0x640
[  422.919493]  ? zap_class+0x640/0x640
[  422.923198]  ? __do_page_cache_readahead+0x663/0x810
[  422.928300]  ? find_held_lock+0x36/0x1c0
[  422.932355]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  422.937889]  alloc_pages_current+0x173/0x350
[  422.942294]  __page_cache_alloc+0x38c/0x5c0
[  422.946607]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  422.951529]  ? kasan_check_read+0x11/0x20
[  422.955765]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  422.961992]  ? generic_perform_write+0x6a0/0x6a0
[  422.966757]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.972292]  ? check_preemption_disabled+0x48/0x280
[  422.977305]  filemap_fault+0x1595/0x25f0
[  422.981368]  ? __lock_page_or_retry+0xa00/0xa00
[  422.986032]  ? mark_held_locks+0x130/0x130
[  422.990276]  ? filemap_map_pages+0xd6b/0x1a20
[  422.994764]  ? lock_downgrade+0x900/0x900
[  422.998903]  ? check_preemption_disabled+0x48/0x280
[  423.003911]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  423.008832]  ? kasan_check_read+0x11/0x20
[  423.012973]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.018244]  ? rcu_softirq_qs+0x20/0x20
[  423.022224]  ? filemap_map_pages+0xd92/0x1a20
[  423.026725]  ? find_get_entries_tag+0x1400/0x1400
[  423.031569]  ? debug_object_destroy+0x2b0/0x2b0
[  423.036229]  ? lock_pi_update_atomic+0x150/0x150
[  423.040981]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.046530]  ? lock_acquire+0x1ed/0x520
[  423.050495]  ? ext4_filemap_fault+0x7a/0xad
[  423.054814]  ? lock_release+0xa00/0xa00
[  423.059554]  ? perf_trace_sched_process_exec+0x860/0x860
[  423.064998]  ? print_usage_bug+0xc0/0xc0
[  423.069054]  ? print_usage_bug+0xc0/0xc0
[  423.073120]  ? down_read+0x8d/0x120
[  423.076743]  ? ext4_filemap_fault+0x7a/0xad
[  423.081059]  ? __down_interruptible+0x700/0x700
[  423.085739]  ext4_filemap_fault+0x82/0xad
[  423.089886]  __do_fault+0x100/0x6b0
[  423.093515]  ? pmd_devmap_trans_unstable+0x220/0x220
[  423.098615]  ? mark_held_locks+0x130/0x130
[  423.102842]  ? mark_held_locks+0x130/0x130
[  423.107070]  ? do_raw_spin_trylock+0x270/0x270
[  423.111657]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.117192]  __handle_mm_fault+0x3ea0/0x5be0
[  423.121598]  ? perf_trace_lock+0x7a0/0x7a0
[  423.125836]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  423.130681]  ? __switch_to_asm+0x34/0x70
[  423.134749]  ? __switch_to_asm+0x34/0x70
[  423.138821]  ? zap_class+0x640/0x640
[  423.142527]  ? zap_class+0x640/0x640
[  423.146236]  ? __x64_sys_futex+0x53e/0x6a0
[  423.150483]  ? find_held_lock+0x36/0x1c0
[  423.154545]  ? handle_mm_fault+0x42a/0xc70
[  423.159552]  ? lock_downgrade+0x900/0x900
[  423.163696]  ? check_preemption_disabled+0x48/0x280
[  423.168715]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  423.173646]  ? kasan_check_read+0x11/0x20
[  423.177785]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.183056]  ? rcu_softirq_qs+0x20/0x20
[  423.187023]  ? trace_hardirqs_off_caller+0x310/0x310
[  423.192208]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.197753]  ? check_preemption_disabled+0x48/0x280
[  423.202792]  handle_mm_fault+0x54f/0xc70
[  423.206849]  ? __handle_mm_fault+0x5be0/0x5be0
[  423.211425]  ? find_vma+0x34/0x190
[  423.214961]  __do_page_fault+0x5e8/0xe60
[  423.219012]  ? trace_hardirqs_off+0xb8/0x310
[  423.223419]  do_page_fault+0xf2/0x7e0
[  423.227212]  ? vmalloc_sync_all+0x30/0x30
[  423.231356]  ? error_entry+0x70/0xd0
[  423.235067]  ? trace_hardirqs_off_caller+0xbb/0x310
[  423.240073]  ? trace_hardirqs_on_caller+0xc0/0x310
[  423.244994]  ? syscall_return_slowpath+0x5e0/0x5e0
[  423.249921]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  423.254758]  ? trace_hardirqs_on_caller+0x310/0x310
[  423.260758]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  423.266199]  ? prepare_exit_to_usermode+0x291/0x3b0
[  423.271205]  ? page_fault+0x8/0x30
[  423.274744]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  423.279580]  ? page_fault+0x8/0x30
[  423.283238]  page_fault+0x1e/0x30
[  423.286687] RIP: 0033:0x45ddf3
[  423.289889] Code: Bad RIP value.
[  423.293249] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  423.298604] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  423.305947] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  423.313206] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  423.320469] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  423.327741] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  423.335025] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  423.335029] warn_alloc_show_mem: 1 callbacks suppressed
[  423.335035] Mem-Info:
[  423.341779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  423.347135] active_anon:54141 inactive_anon:292 isolated_anon:0
[  423.347135]  active_file:12 inactive_file:13 isolated_file:0
[  423.347135]  unevictable:0 dirty:0 writeback:0 unstable:0
[  423.347135]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  423.347135]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  423.347135]  free:13705 free_pcp:178 free_cma:0
[  423.349497] Call Trace:
[  423.359826] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  423.392672]  dump_stack+0x244/0x39d
[  423.395229] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  423.422885]  ? dump_stack_print_info.cold.1+0x20/0x20
[  423.426477] lowmem_reserve[]: 0 2818 6321 6321
[  423.452583]  warn_alloc.cold.116+0xb7/0x1bd
[  423.458242] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  423.462811]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  423.467099] lowmem_reserve[]: 0 0 3503 3503
[  423.495262]  ? lock_downgrade+0x900/0x900
[  423.500074] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  423.504387]  ? trace_hardirqs_off+0xb8/0x310
[  423.508493] lowmem_reserve[]: 0 0 0 0
[  423.537461]  ? trace_hardirqs_off+0xb8/0x310
[  423.541837] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  423.545631]  __alloc_pages_slowpath+0x26e8/0x2e10
[  423.550003] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  423.563864]  ? warn_alloc+0x120/0x120
[  423.568655] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  423.583910]  ? print_usage_bug+0xc0/0xc0
[  423.587682] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  423.601884]  ? warn_alloc+0x120/0x120
[  423.605919] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  423.614740]  ? warn_alloc+0x120/0x120
[  423.618512] 366 total pagecache pages
[  423.627073]  ? print_usage_bug+0xc0/0xc0
[  423.630853] 0 pages in swap cache
[  423.634632]  ? print_usage_bug+0xc0/0xc0
[  423.638663] Swap cache stats: add 0, delete 0, find 0/0
[  423.642096]  ? __lock_acquire+0x62f/0x4c20
[  423.646127] Free swap  = 0kB
[  423.651475]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.655685] Total swap = 0kB
[  423.659007]  ? should_fail+0x22d/0xd01
[  423.664515] 1965979 pages RAM
[  423.667521]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  423.671374] 0 pages HighMem/MovableOnly
[  423.671381] 342854 pages reserved
[  423.674487]  ? __lock_acquire+0x62f/0x4c20
[  423.679557] 0 pages cma reserved
[  423.683535]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  423.687083] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  423.691173]  ? __lock_acquire+0x62f/0x4c20
[  423.694510] syz-fuzzer cpuset=/ mems_allowed=0
[  423.699592]  ? should_fail+0x22d/0xd01
[  423.699606]  ? find_held_lock+0x36/0x1c0
[  423.726493]  ? mark_held_locks+0x130/0x130
[  423.730731]  ? mark_held_locks+0x130/0x130
[  423.734970]  ? zap_class+0x640/0x640
[  423.738675]  ? mark_held_locks+0xc7/0x130
[  423.742838]  ? do_raw_spin_unlock+0xa7/0x330
[  423.747237]  ? zap_class+0x640/0x640
[  423.750944]  ? print_usage_bug+0xc0/0xc0
[  423.754998]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.761344]  ? check_preemption_disabled+0x48/0x280
[  423.766362]  ? __lock_is_held+0xb5/0x140
[  423.770417]  __alloc_pages_nodemask+0xa80/0xde0
[  423.775090]  ? zap_class+0x640/0x640
[  423.778802]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  423.783839]  ? find_held_lock+0x36/0x1c0
[  423.787904]  ? ____cache_alloc_node+0x1c7/0x1e0
[  423.792568]  ? lock_downgrade+0x900/0x900
[  423.796719]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.802251]  cache_grow_begin+0xa5/0x8c0
[  423.806325]  ? do_raw_spin_unlock+0xa7/0x330
[  423.810759]  fallback_alloc+0x204/0x2e0
[  423.814731]  ____cache_alloc_node+0x1c7/0x1e0
[  423.819224]  kmem_cache_alloc_node+0xe3/0x730
[  423.823723]  ? ipv6_get_ifaddr+0x42e/0x620
[  423.827973]  __alloc_skb+0x119/0x770
[  423.831692]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.836968]  ? netdev_alloc_frag+0x1f0/0x1f0
[  423.841368]  ? lock_downgrade+0x900/0x900
[  423.845513]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.851128]  ? refcount_sub_and_test_checked+0x203/0x310
[  423.856576]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  423.862366]  ? addrconf_rs_timer+0x690/0x690
[  423.866793]  ndisc_alloc_skb+0x144/0x340
[  423.870861]  ndisc_send_rs+0x331/0x6e0
[  423.874741]  addrconf_rs_timer+0x314/0x690
[  423.879430]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.883670]  call_timer_fn+0x272/0x920
[  423.887658]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.891900]  ? process_timeout+0x40/0x40
[  423.895963]  ? __run_timers+0x7da/0xc70
[  423.899931]  ? _raw_spin_unlock_irq+0x27/0x80
[  423.904417]  ? _raw_spin_unlock_irq+0x27/0x80
[  423.908900]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.913126]  ? lockdep_hardirqs_on+0x296/0x5b0
[  423.917710]  ? trace_hardirqs_on+0xbd/0x310
[  423.922028]  ? kasan_check_read+0x11/0x20
[  423.926172]  ? __run_timers+0x7da/0xc70
[  423.930318]  ? trace_hardirqs_off_caller+0x310/0x310
[  423.935421]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.939649]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.943875]  __run_timers+0x7e5/0xc70
[  423.947683]  ? timer_fixup_init+0x70/0x70
[  423.951832]  ? _raw_spin_unlock_irq+0x27/0x80
[  423.956318]  ? _raw_spin_unlock_irq+0x27/0x80
[  423.961119]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  423.965706]  ? trace_hardirqs_on+0xbd/0x310
[  423.970032]  ? kasan_check_read+0x11/0x20
[  423.974172]  ? finish_task_switch+0x1f4/0x910
[  423.978662]  ? trace_hardirqs_off_caller+0x310/0x310
[  423.983772]  ? compat_start_thread+0x80/0x80
[  423.988193]  ? pvclock_read_flags+0x160/0x160
[  423.992698]  ? __switch_to_asm+0x34/0x70
[  423.996751]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.002283]  ? check_preemption_disabled+0x48/0x280
[  424.007309]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  424.012836]  ? rcu_pm_notify+0xc0/0xc0
[  424.016713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.022250]  ? check_preemption_disabled+0x48/0x280
[  424.027269]  run_timer_softirq+0x52/0xb0
[  424.031324]  ? rcu_read_lock_sched_held+0x14f/0x180
[  424.036335]  __do_softirq+0x308/0xb7e
[  424.040132]  ? trace_hardirqs_on_caller+0xc0/0x310
[  424.045058]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  424.050153]  ? trace_hardirqs_on+0x310/0x310
[  424.054562]  ? schedule+0x108/0x460
[  424.058491]  ? trace_hardirqs_off+0xb8/0x310
[  424.062977]  ? smpboot_thread_fn+0x68b/0xa00
[  424.067378]  ? trace_hardirqs_on+0x310/0x310
[  424.071785]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.077317]  ? check_preemption_disabled+0x48/0x280
[  424.082412]  ? takeover_tasklets+0xa90/0xa90
[  424.086813]  run_ksoftirqd+0x5e/0x100
[  424.090621]  smpboot_thread_fn+0x68b/0xa00
[  424.094850]  ? sort_range+0x30/0x30
[  424.098469]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  424.103567]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.109098]  ? __kthread_parkme+0xfb/0x1a0
[  424.113327]  ? sort_range+0x30/0x30
[  424.116947]  kthread+0x35a/0x440
[  424.120303]  ? kthread_stop+0x900/0x900
[  424.124269]  ret_from_fork+0x3a/0x50
[  424.127987] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  424.128069] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  424.134909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  424.134913] Call Trace:
[  424.134919]  <IRQ>
[  424.134954]  dump_stack+0x244/0x39d
[  424.134973]  ? dump_stack_print_info.cold.1+0x20/0x20
[  424.141504] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  424.150784]  warn_alloc.cold.116+0xb7/0x1bd
[  424.153330] ksoftirqd/0 cpuset=/ mems_allowed=0
[  424.155469]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  424.188596]  ? lock_downgrade+0x900/0x900
[  424.192745]  ? trace_hardirqs_off+0xb8/0x310
[  424.197152]  ? trace_hardirqs_off+0xb8/0x310
[  424.201566]  __alloc_pages_slowpath+0x26e8/0x2e10
[  424.206426]  ? warn_alloc+0x120/0x120
[  424.210225]  ? warn_alloc+0x120/0x120
[  424.214021]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  424.219032]  ? warn_alloc+0x120/0x120
[  424.222826]  ? print_usage_bug+0xc0/0xc0
[  424.226882]  ? print_usage_bug+0xc0/0xc0
[  424.230934]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  424.236123]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.241647]  ? should_fail+0x22d/0xd01
[  424.245544]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  424.250640]  ? __lock_acquire+0x62f/0x4c20
[  424.254880]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  424.260783]  ? should_fail+0x22d/0xd01
[  424.264687]  ? mark_held_locks+0x130/0x130
[  424.268930]  ? mark_held_locks+0x130/0x130
[  424.273235]  ? print_usage_bug+0xc0/0xc0
[  424.277296]  ? find_held_lock+0x36/0x1c0
[  424.281349]  ? zap_class+0x640/0x640
[  424.285176]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.290710]  ? check_preemption_disabled+0x48/0x280
[  424.295729]  ? __lock_is_held+0xb5/0x140
[  424.299788]  __alloc_pages_nodemask+0xa80/0xde0
[  424.304447]  ? zap_class+0x640/0x640
[  424.308161]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  424.313188]  ? find_held_lock+0x36/0x1c0
[  424.317252]  ? ____cache_alloc_node+0x1c7/0x1e0
[  424.321916]  ? lock_downgrade+0x900/0x900
[  424.326062]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.331596]  cache_grow_begin+0xa5/0x8c0
[  424.335666]  ? do_raw_spin_unlock+0xa7/0x330
[  424.340089]  fallback_alloc+0x204/0x2e0
[  424.344062]  ____cache_alloc_node+0x1c7/0x1e0
[  424.348551]  kmem_cache_alloc_node+0xe3/0x730
[  424.353037]  ? mark_held_locks+0xc7/0x130
[  424.357189]  __alloc_skb+0x119/0x770
[  424.361657]  ? netdev_alloc_frag+0x1f0/0x1f0
[  424.366061]  ? do_raw_spin_trylock+0x270/0x270
[  424.370638]  ? kmem_cache_alloc_trace+0x353/0x750
[  424.375482]  ? queue_work_on+0x12c/0x1e0
[  424.379544]  ? switchdev_port_obj_del+0xdc/0x440
[  424.384310]  ? switchdev_trans_item_enqueue+0x260/0x260
[  424.389675]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  424.394695]  __br_mdb_notify+0x4ff/0x15d0
[  424.398833]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  424.403939]  ? __br_mdb_add+0x7f0/0x7f0
[  424.407913]  ? mark_held_locks+0x130/0x130
[  424.412144]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  424.417246]  ? debug_object_assert_init+0x368/0x4b0
[  424.422257]  ? debug_object_init_on_stack+0x20/0x20
[  424.427264]  ? zap_class+0x640/0x640
[  424.430973]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.436509]  br_mdb_notify+0x310/0x410
[  424.440393]  ? br_mdb_dump+0x27b0/0x27b0
[  424.444486]  br_multicast_del_pg+0x3df/0x790
[  424.448897]  ? br_mdb_ip_get+0x940/0x940
[  424.452948]  ? rwlock_bug.part.2+0x90/0x90
[  424.457179]  ? __lock_is_held+0xb5/0x140
[  424.461995]  br_multicast_port_group_expired+0x189/0x1e0
[  424.467536]  call_timer_fn+0x272/0x920
[  424.471416]  ? br_multicast_del_pg+0x790/0x790
[  424.476012]  ? process_timeout+0x40/0x40
[  424.480083]  ? mark_held_locks+0xc7/0x130
[  424.484220]  ? _raw_spin_unlock_irq+0x27/0x80
[  424.488708]  ? _raw_spin_unlock_irq+0x27/0x80
[  424.493190]  ? br_multicast_del_pg+0x790/0x790
[  424.497766]  ? lockdep_hardirqs_on+0x296/0x5b0
[  424.502420]  ? trace_hardirqs_on+0xbd/0x310
[  424.506754]  ? kasan_check_read+0x11/0x20
[  424.510893]  ? __run_timers+0x7da/0xc70
[  424.514861]  ? trace_hardirqs_off_caller+0x310/0x310
[  424.519964]  ? br_multicast_del_pg+0x790/0x790
[  424.524546]  ? br_multicast_del_pg+0x790/0x790
[  424.529116]  __run_timers+0x7e5/0xc70
[  424.532920]  ? timer_fixup_init+0x70/0x70
[  424.537058]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  424.542066]  ? zap_class+0x640/0x640
[  424.545772]  ? print_usage_bug+0xc0/0xc0
[  424.549827]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  424.555029]  ? find_held_lock+0x36/0x1c0
[  424.560075]  ? zap_class+0x640/0x640
[  424.563789]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.569319]  ? check_preemption_disabled+0x48/0x280
[  424.574339]  ? __lock_is_held+0xb5/0x140
[  424.578395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.583923]  ? check_preemption_disabled+0x48/0x280
[  424.588933]  run_timer_softirq+0x52/0xb0
[  424.592986]  ? rcu_read_lock_sched_held+0x14f/0x180
[  424.597999]  __do_softirq+0x308/0xb7e
[  424.601798]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  424.606300]  ? lock_downgrade+0x900/0x900
[  424.610454]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  424.615552]  ? pvclock_read_flags+0x160/0x160
[  424.620037]  ? lapic_next_event+0x5a/0x90
[  424.624177]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.629714]  ? kvm_clock_read+0x18/0x30
[  424.633680]  ? kvm_sched_clock_read+0x9/0x20
[  424.638080]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.643607]  ? check_preemption_disabled+0x48/0x280
[  424.648619]  irq_exit+0x17f/0x1c0
[  424.652065]  smp_apic_timer_interrupt+0x1cb/0x760
[  424.656895]  ? smp_reschedule_interrupt+0x109/0x650
[  424.662849]  ? smp_call_function_single_interrupt+0x650/0x650
[  424.668730]  ? interrupt_entry+0xb5/0xc0
[  424.672787]  ? trace_hardirqs_off_caller+0xbb/0x310
[  424.677796]  ? trace_hardirqs_off_caller+0xbb/0x310
[  424.682804]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.687642]  ? trace_hardirqs_on_caller+0x310/0x310
[  424.692661]  ? trace_hardirqs_on_caller+0x310/0x310
[  424.697686]  ? task_prio+0x50/0x50
[  424.701222]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.706753]  ? check_preemption_disabled+0x48/0x280
[  424.711767]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.716610]  apic_timer_interrupt+0xf/0x20
[  424.720841]  </IRQ>
[  424.723069] RIP: 0010:dump_stack+0x358/0x39d
[  424.727470] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  424.746361] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  424.754064] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  424.762125] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  424.769390] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  424.776647] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  424.783907] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  424.791193]  ? dump_stack+0x34f/0x39d
[  424.795008]  ? dump_stack_print_info.cold.1+0x20/0x20
[  424.800190]  ? mark_held_locks+0x130/0x130
[  424.804419]  ? mark_held_locks+0x130/0x130
[  424.808654]  dump_header+0x27b/0xf72
[  424.812376]  ? pagefault_out_of_memory+0x197/0x197
[  424.817302]  ? __lock_acquire+0x62f/0x4c20
[  424.821531]  ? percpu_ref_get_many+0x240/0x240
[  424.826113]  ? print_usage_bug+0xc0/0xc0
[  424.830173]  ? zap_class+0x640/0x640
[  424.833880]  ? print_usage_bug+0xc0/0xc0
[  424.837932]  ? print_usage_bug+0xc0/0xc0
[  424.841986]  ? zap_class+0x640/0x640
[  424.845697]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.851230]  ? find_held_lock+0x36/0x1c0
[  424.855288]  ? mark_held_locks+0xc7/0x130
[  424.860397]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  424.865496]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  424.870594]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  424.875173]  ? trace_hardirqs_on+0xbd/0x310
[  424.879487]  ? kasan_check_read+0x11/0x20
[  424.883635]  ? ___ratelimit+0x3b4/0x672
[  424.887603]  ? trace_hardirqs_off_caller+0x310/0x310
[  424.892710]  ? trace_hardirqs_on+0x310/0x310
[  424.897111]  ? lock_downgrade+0x900/0x900
[  424.901263]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  424.906363]  ? ___ratelimit+0x3b9/0x672
[  424.910330]  ? idr_get_free+0xf70/0xf70
[  424.914295]  ? find_held_lock+0x36/0x1c0
[  424.918367]  oom_kill_process.cold.27+0x10/0x903
[  424.923116]  ? zap_class+0x640/0x640
[  424.926829]  ? check_preemption_disabled+0x48/0x280
[  424.931953]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  424.936867]  ? kasan_check_read+0x11/0x20
[  424.941000]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.946265]  ? oom_evaluate_task+0x540/0x540
[  424.950664]  ? find_held_lock+0x36/0x1c0
[  424.954719]  ? out_of_memory+0x974/0x1430
[  424.959623]  ? lock_downgrade+0x900/0x900
[  424.963767]  ? check_preemption_disabled+0x48/0x280
[  424.968777]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  424.973700]  ? kasan_check_read+0x11/0x20
[  424.977838]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.983114]  ? rcu_softirq_qs+0x20/0x20
[  424.987088]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.992619]  ? oom_evaluate_task+0x302/0x540
[  424.997024]  out_of_memory+0xa84/0x1430
[  425.001011]  ? oom_killer_disable+0x3a0/0x3a0
[  425.005500]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  425.010424]  ? __ww_mutex_check_waiters+0x160/0x160
[  425.015543]  __alloc_pages_slowpath+0x2354/0x2e10
[  425.020398]  ? warn_alloc+0x120/0x120
[  425.024192]  ? mark_held_locks+0x130/0x130
[  425.028424]  ? find_get_entry+0xaae/0x1120
[  425.032660]  ? filemap_map_pages+0x1a20/0x1a20
[  425.037245]  ? zap_class+0x640/0x640
[  425.040957]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.046484]  ? check_preemption_disabled+0x48/0x280
[  425.051504]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.057033]  ? should_fail+0x22d/0xd01
[  425.061867]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  425.066961]  ? zap_class+0x640/0x640
[  425.070687]  ? __lock_is_held+0xb5/0x140
[  425.074768]  ? mark_held_locks+0x130/0x130
[  425.078999]  ? lock_release+0xa00/0xa00
[  425.082968]  ? perf_trace_sched_process_exec+0x860/0x860
[  425.088411]  ? xa_load+0x2ba/0x460
[  425.091940]  ? lock_downgrade+0x900/0x900
[  425.096087]  ? __might_sleep+0x95/0x190
[  425.100062]  __alloc_pages_nodemask+0xa80/0xde0
[  425.104729]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  425.109736]  ? __page_cache_alloc+0x191/0x5c0
[  425.114223]  ? xa_load+0x2e1/0x460
[  425.117756]  ? xa_clear_mark+0x40/0x40
[  425.121641]  ? zap_class+0x640/0x640
[  425.125352]  ? zap_class+0x640/0x640
[  425.129058]  ? zap_class+0x640/0x640
[  425.132769]  ? __do_page_cache_readahead+0x663/0x810
[  425.137880]  ? find_held_lock+0x36/0x1c0
[  425.141940]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  425.147478]  alloc_pages_current+0x173/0x350
[  425.151880]  __page_cache_alloc+0x38c/0x5c0
[  425.156188]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  425.162105]  ? kasan_check_read+0x11/0x20
[  425.166244]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.171520]  ? generic_perform_write+0x6a0/0x6a0
[  425.176270]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.181800]  ? check_preemption_disabled+0x48/0x280
[  425.186817]  filemap_fault+0x1595/0x25f0
[  425.190881]  ? __lock_page_or_retry+0xa00/0xa00
[  425.195546]  ? mark_held_locks+0x130/0x130
[  425.199783]  ? filemap_map_pages+0xd6b/0x1a20
[  425.204271]  ? lock_downgrade+0x900/0x900
[  425.208414]  ? check_preemption_disabled+0x48/0x280
[  425.213429]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  425.218353]  ? kasan_check_read+0x11/0x20
[  425.222494]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.227782]  ? rcu_softirq_qs+0x20/0x20
[  425.231759]  ? filemap_map_pages+0xd92/0x1a20
[  425.236260]  ? find_get_entries_tag+0x1400/0x1400
[  425.241096]  ? debug_object_destroy+0x2b0/0x2b0
[  425.245769]  ? lock_pi_update_atomic+0x150/0x150
[  425.250517]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.256055]  ? lock_acquire+0x1ed/0x520
[  425.260975]  ? ext4_filemap_fault+0x7a/0xad
[  425.265293]  ? lock_release+0xa00/0xa00
[  425.269257]  ? perf_trace_sched_process_exec+0x860/0x860
[  425.274701]  ? print_usage_bug+0xc0/0xc0
[  425.278764]  ? print_usage_bug+0xc0/0xc0
[  425.282824]  ? down_read+0x8d/0x120
[  425.286438]  ? ext4_filemap_fault+0x7a/0xad
[  425.290754]  ? __down_interruptible+0x700/0x700
[  425.295424]  ext4_filemap_fault+0x82/0xad
[  425.299564]  __do_fault+0x100/0x6b0
[  425.303198]  ? pmd_devmap_trans_unstable+0x220/0x220
[  425.308297]  ? mark_held_locks+0x130/0x130
[  425.312526]  ? mark_held_locks+0x130/0x130
[  425.316751]  ? do_raw_spin_trylock+0x270/0x270
[  425.321330]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.326863]  __handle_mm_fault+0x3ea0/0x5be0
[  425.331267]  ? perf_trace_lock+0x7a0/0x7a0
[  425.335498]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  425.340343]  ? __switch_to_asm+0x34/0x70
[  425.344423]  ? __switch_to_asm+0x34/0x70
[  425.348487]  ? zap_class+0x640/0x640
[  425.352191]  ? zap_class+0x640/0x640
[  425.355893]  ? __x64_sys_futex+0x53e/0x6a0
[  425.361068]  ? find_held_lock+0x36/0x1c0
[  425.365132]  ? handle_mm_fault+0x42a/0xc70
[  425.369360]  ? lock_downgrade+0x900/0x900
[  425.373499]  ? check_preemption_disabled+0x48/0x280
[  425.378513]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  425.383436]  ? kasan_check_read+0x11/0x20
[  425.387584]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.392851]  ? rcu_softirq_qs+0x20/0x20
[  425.396817]  ? trace_hardirqs_off_caller+0x310/0x310
[  425.401915]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.407447]  ? check_preemption_disabled+0x48/0x280
[  425.412463]  handle_mm_fault+0x54f/0xc70
[  425.416522]  ? __handle_mm_fault+0x5be0/0x5be0
[  425.421120]  ? find_vma+0x34/0x190
[  425.424675]  __do_page_fault+0x5e8/0xe60
[  425.428729]  ? trace_hardirqs_off+0xb8/0x310
[  425.433142]  do_page_fault+0xf2/0x7e0
[  425.436935]  ? vmalloc_sync_all+0x30/0x30
[  425.441079]  ? error_entry+0x70/0xd0
[  425.444792]  ? trace_hardirqs_off_caller+0xbb/0x310
[  425.449803]  ? trace_hardirqs_on_caller+0xc0/0x310
[  425.454726]  ? syscall_return_slowpath+0x5e0/0x5e0
[  425.460449]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.465284]  ? trace_hardirqs_on_caller+0x310/0x310
[  425.470289]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  425.475734]  ? prepare_exit_to_usermode+0x291/0x3b0
[  425.480745]  ? page_fault+0x8/0x30
[  425.484285]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.489125]  ? page_fault+0x8/0x30
[  425.492658]  page_fault+0x1e/0x30
[  425.496103] RIP: 0033:0x45ddf3
[  425.499300] Code: Bad RIP value.
[  425.502653] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  425.508006] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  425.515267] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  425.522526] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  425.529810] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  425.537081] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  425.544367] warn_alloc_show_mem: 1 callbacks suppressed
[  425.544376] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  425.544377] Mem-Info:
[  425.544409] active_anon:54141 inactive_anon:292 isolated_anon:0
[  425.544409]  active_file:12 inactive_file:13 isolated_file:0
[  425.544409]  unevictable:0 dirty:0 writeback:0 unstable:0
[  425.544409]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  425.544409]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  425.544409]  free:13705 free_pcp:178 free_cma:0
[  425.549733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  425.549738] Call Trace:
[  425.556486] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  425.559194]  dump_stack+0x244/0x39d
[  425.592044] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  425.601390]  ? dump_stack_print_info.cold.1+0x20/0x20
[  425.603942] lowmem_reserve[]: 0 2818 6321 6321
[  425.631615]  warn_alloc.cold.116+0xb7/0x1bd
[  425.635208] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  425.661612]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  425.666764] lowmem_reserve[]: 0 0 3503 3503
[  425.671343]  ? lock_downgrade+0x900/0x900
[  425.675635] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  425.703124]  ? trace_hardirqs_off+0xb8/0x310
[  425.707925] lowmem_reserve[]: 0 0 0 0
[  425.712242]  ? trace_hardirqs_off+0xb8/0x310
[  425.716359] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  425.745330]  __alloc_pages_slowpath+0x26e8/0x2e10
[  425.749701] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  425.753513]  ? warn_alloc+0x120/0x120
[  425.758848] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  425.772835]  ? print_usage_bug+0xc0/0xc0
[  425.777654] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  425.792978]  ? warn_alloc+0x120/0x120
[  425.796753] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  425.810965]  ? warn_alloc+0x120/0x120
[  425.814994] 366 total pagecache pages
[  425.823811]  ? print_usage_bug+0xc0/0xc0
[  425.827586] 0 pages in swap cache
[  425.836139]  ? print_usage_bug+0xc0/0xc0
[  425.839908] Swap cache stats: add 0, delete 0, find 0/0
[  425.843688]  ? __lock_acquire+0x62f/0x4c20
[  425.847715] Free swap  = 0kB
[  425.851155]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.855179] Total swap = 0kB
[  425.860852]  ? should_fail+0x22d/0xd01
[  425.865052] 1965979 pages RAM
[  425.868058]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  425.873566] 0 pages HighMem/MovableOnly
[  425.873574] 342854 pages reserved
[  425.876584]  ? __lock_acquire+0x62f/0x4c20
[  425.880441] 0 pages cma reserved
[  425.883533]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  425.888743] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  425.892576]  ? __lock_acquire+0x62f/0x4c20
[  425.895998] syz-fuzzer cpuset=/ mems_allowed=0
[  425.900214]  ? should_fail+0x22d/0xd01
[  425.900228]  ? find_held_lock+0x36/0x1c0
[  425.935767]  ? mark_held_locks+0x130/0x130
[  425.939995]  ? mark_held_locks+0x130/0x130
[  425.944218]  ? zap_class+0x640/0x640
[  425.947928]  ? mark_held_locks+0xc7/0x130
[  425.952068]  ? do_raw_spin_unlock+0xa7/0x330
[  425.956470]  ? zap_class+0x640/0x640
[  425.960449]  ? print_usage_bug+0xc0/0xc0
[  425.964505]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.970041]  ? check_preemption_disabled+0x48/0x280
[  425.975059]  ? __lock_is_held+0xb5/0x140
[  425.979120]  __alloc_pages_nodemask+0xa80/0xde0
[  425.983799]  ? zap_class+0x640/0x640
[  425.987515]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  425.992551]  ? find_held_lock+0x36/0x1c0
[  425.996617]  ? ____cache_alloc_node+0x1c7/0x1e0
[  426.001280]  ? lock_downgrade+0x900/0x900
[  426.005434]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.011083]  cache_grow_begin+0xa5/0x8c0
[  426.015136]  ? do_raw_spin_unlock+0xa7/0x330
[  426.019587]  fallback_alloc+0x204/0x2e0
[  426.023575]  ____cache_alloc_node+0x1c7/0x1e0
[  426.028077]  kmem_cache_alloc_node+0xe3/0x730
[  426.032586]  ? ipv6_get_ifaddr+0x42e/0x620
[  426.036823]  __alloc_skb+0x119/0x770
[  426.040529]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.045813]  ? netdev_alloc_frag+0x1f0/0x1f0
[  426.050215]  ? lock_downgrade+0x900/0x900
[  426.054365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.060202]  ? refcount_sub_and_test_checked+0x203/0x310
[  426.065651]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  426.071093]  ? addrconf_rs_timer+0x690/0x690
[  426.075505]  ndisc_alloc_skb+0x144/0x340
[  426.079573]  ndisc_send_rs+0x331/0x6e0
[  426.083457]  addrconf_rs_timer+0x314/0x690
[  426.087688]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.091958]  call_timer_fn+0x272/0x920
[  426.095840]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.100068]  ? process_timeout+0x40/0x40
[  426.104125]  ? __run_timers+0x7da/0xc70
[  426.108092]  ? _raw_spin_unlock_irq+0x27/0x80
[  426.112589]  ? _raw_spin_unlock_irq+0x27/0x80
[  426.117072]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.121298]  ? lockdep_hardirqs_on+0x296/0x5b0
[  426.125878]  ? trace_hardirqs_on+0xbd/0x310
[  426.130193]  ? kasan_check_read+0x11/0x20
[  426.134330]  ? __run_timers+0x7da/0xc70
[  426.138297]  ? trace_hardirqs_off_caller+0x310/0x310
[  426.143408]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.147639]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.151952]  __run_timers+0x7e5/0xc70
[  426.155766]  ? timer_fixup_init+0x70/0x70
[  426.160185]  ? _raw_spin_unlock_irq+0x27/0x80
[  426.164674]  ? _raw_spin_unlock_irq+0x27/0x80
[  426.169163]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  426.173827]  ? trace_hardirqs_on+0xbd/0x310
[  426.178141]  ? kasan_check_read+0x11/0x20
[  426.182284]  ? finish_task_switch+0x1f4/0x910
[  426.186774]  ? trace_hardirqs_off_caller+0x310/0x310
[  426.191874]  ? compat_start_thread+0x80/0x80
[  426.196297]  ? pvclock_read_flags+0x160/0x160
[  426.200790]  ? __switch_to_asm+0x34/0x70
[  426.204842]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.210369]  ? check_preemption_disabled+0x48/0x280
[  426.215387]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  426.220916]  ? rcu_pm_notify+0xc0/0xc0
[  426.224810]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.230348]  ? check_preemption_disabled+0x48/0x280
[  426.235361]  run_timer_softirq+0x52/0xb0
[  426.239412]  ? rcu_read_lock_sched_held+0x14f/0x180
[  426.244419]  __do_softirq+0x308/0xb7e
[  426.248225]  ? trace_hardirqs_on_caller+0xc0/0x310
[  426.253150]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  426.258548]  ? trace_hardirqs_on+0x310/0x310
[  426.262953]  ? schedule+0x108/0x460
[  426.266587]  ? trace_hardirqs_off+0xb8/0x310
[  426.270990]  ? smpboot_thread_fn+0x68b/0xa00
[  426.275390]  ? trace_hardirqs_on+0x310/0x310
[  426.279794]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.285325]  ? check_preemption_disabled+0x48/0x280
[  426.290334]  ? takeover_tasklets+0xa90/0xa90
[  426.294733]  run_ksoftirqd+0x5e/0x100
[  426.298532]  smpboot_thread_fn+0x68b/0xa00
[  426.302771]  ? sort_range+0x30/0x30
[  426.306389]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  426.311484]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.317016]  ? __kthread_parkme+0xfb/0x1a0
[  426.321249]  ? sort_range+0x30/0x30
[  426.324865]  kthread+0x35a/0x440
[  426.328225]  ? kthread_stop+0x900/0x900
[  426.332197]  ret_from_fork+0x3a/0x50
[  426.335924] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  426.336007] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  426.342843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  426.342848] Call Trace:
[  426.342854]  <IRQ>
[  426.342869]  dump_stack+0x244/0x39d
[  426.342887]  ? dump_stack_print_info.cold.1+0x20/0x20
[  426.349398] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  426.359696]  warn_alloc.cold.116+0xb7/0x1bd
[  426.362243] ksoftirqd/0 cpuset=/ mems_allowed=0
[  426.364392]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  426.397219]  ? lock_downgrade+0x900/0x900
[  426.401368]  ? trace_hardirqs_off+0xb8/0x310
[  426.405775]  ? trace_hardirqs_off+0xb8/0x310
[  426.410188]  __alloc_pages_slowpath+0x26e8/0x2e10
[  426.415055]  ? warn_alloc+0x120/0x120
[  426.418865]  ? warn_alloc+0x120/0x120
[  426.422665]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  426.427675]  ? warn_alloc+0x120/0x120
[  426.431472]  ? print_usage_bug+0xc0/0xc0
[  426.435534]  ? print_usage_bug+0xc0/0xc0
[  426.439585]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  426.444771]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.450304]  ? should_fail+0x22d/0xd01
[  426.454187]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  426.459724]  ? __lock_acquire+0x62f/0x4c20
[  426.463952]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  426.469053]  ? should_fail+0x22d/0xd01
[  426.472945]  ? mark_held_locks+0x130/0x130
[  426.477178]  ? mark_held_locks+0x130/0x130
[  426.481406]  ? print_usage_bug+0xc0/0xc0
[  426.485467]  ? find_held_lock+0x36/0x1c0
[  426.489529]  ? zap_class+0x640/0x640
[  426.493241]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.498770]  ? check_preemption_disabled+0x48/0x280
[  426.503788]  ? __lock_is_held+0xb5/0x140
[  426.507846]  __alloc_pages_nodemask+0xa80/0xde0
[  426.512510]  ? zap_class+0x640/0x640
[  426.516220]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  426.521235]  ? find_held_lock+0x36/0x1c0
[  426.525299]  ? ____cache_alloc_node+0x1c7/0x1e0
[  426.529958]  ? lock_downgrade+0x900/0x900
[  426.534104]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.539638]  cache_grow_begin+0xa5/0x8c0
[  426.543687]  ? do_raw_spin_unlock+0xa7/0x330
[  426.548120]  fallback_alloc+0x204/0x2e0
[  426.552089]  ____cache_alloc_node+0x1c7/0x1e0
[  426.556580]  kmem_cache_alloc_node+0xe3/0x730
[  426.561850]  ? mark_held_locks+0xc7/0x130
[  426.566001]  __alloc_skb+0x119/0x770
[  426.569714]  ? netdev_alloc_frag+0x1f0/0x1f0
[  426.574115]  ? do_raw_spin_trylock+0x270/0x270
[  426.578686]  ? kmem_cache_alloc_trace+0x353/0x750
[  426.583531]  ? queue_work_on+0x12c/0x1e0
[  426.587594]  ? switchdev_port_obj_del+0xdc/0x440
[  426.592336]  ? switchdev_trans_item_enqueue+0x260/0x260
[  426.597700]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  426.602717]  __br_mdb_notify+0x4ff/0x15d0
[  426.606857]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  426.611960]  ? __br_mdb_add+0x7f0/0x7f0
[  426.615944]  ? mark_held_locks+0x130/0x130
[  426.620174]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  426.625273]  ? debug_object_assert_init+0x368/0x4b0
[  426.630285]  ? debug_object_init_on_stack+0x20/0x20
[  426.635296]  ? zap_class+0x640/0x640
[  426.639005]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.644550]  br_mdb_notify+0x310/0x410
[  426.648431]  ? br_mdb_dump+0x27b0/0x27b0
[  426.652506]  br_multicast_del_pg+0x3df/0x790
[  426.656920]  ? br_mdb_ip_get+0x940/0x940
[  426.661757]  ? rwlock_bug.part.2+0x90/0x90
[  426.665991]  ? __lock_is_held+0xb5/0x140
[  426.670062]  br_multicast_port_group_expired+0x189/0x1e0
[  426.675514]  call_timer_fn+0x272/0x920
[  426.679393]  ? br_multicast_del_pg+0x790/0x790
[  426.683968]  ? process_timeout+0x40/0x40
[  426.688030]  ? mark_held_locks+0xc7/0x130
[  426.692167]  ? _raw_spin_unlock_irq+0x27/0x80
[  426.696656]  ? _raw_spin_unlock_irq+0x27/0x80
[  426.701151]  ? br_multicast_del_pg+0x790/0x790
[  426.705728]  ? lockdep_hardirqs_on+0x296/0x5b0
[  426.710313]  ? trace_hardirqs_on+0xbd/0x310
[  426.714639]  ? kasan_check_read+0x11/0x20
[  426.718776]  ? __run_timers+0x7da/0xc70
[  426.722743]  ? trace_hardirqs_off_caller+0x310/0x310
[  426.727842]  ? br_multicast_del_pg+0x790/0x790
[  426.732427]  ? br_multicast_del_pg+0x790/0x790
[  426.736999]  __run_timers+0x7e5/0xc70
[  426.740804]  ? timer_fixup_init+0x70/0x70
[  426.744947]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  426.749956]  ? zap_class+0x640/0x640
[  426.753665]  ? print_usage_bug+0xc0/0xc0
[  426.758515]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  426.763713]  ? find_held_lock+0x36/0x1c0
[  426.767769]  ? zap_class+0x640/0x640
[  426.771473]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.777002]  ? check_preemption_disabled+0x48/0x280
[  426.782023]  ? __lock_is_held+0xb5/0x140
[  426.786078]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.791609]  ? check_preemption_disabled+0x48/0x280
[  426.796622]  run_timer_softirq+0x52/0xb0
[  426.800674]  ? rcu_read_lock_sched_held+0x14f/0x180
[  426.805684]  __do_softirq+0x308/0xb7e
[  426.809479]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  426.813978]  ? lock_downgrade+0x900/0x900
[  426.818233]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  426.823336]  ? pvclock_read_flags+0x160/0x160
[  426.827826]  ? lapic_next_event+0x5a/0x90
[  426.831972]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.837513]  ? kvm_clock_read+0x18/0x30
[  426.841481]  ? kvm_sched_clock_read+0x9/0x20
[  426.845890]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.851419]  ? check_preemption_disabled+0x48/0x280
[  426.856437]  irq_exit+0x17f/0x1c0
[  426.860877]  smp_apic_timer_interrupt+0x1cb/0x760
[  426.865711]  ? smp_reschedule_interrupt+0x109/0x650
[  426.870720]  ? smp_call_function_single_interrupt+0x650/0x650
[  426.876599]  ? interrupt_entry+0xb5/0xc0
[  426.880667]  ? trace_hardirqs_off_caller+0xbb/0x310
[  426.885678]  ? trace_hardirqs_off_caller+0xbb/0x310
[  426.890690]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  426.895524]  ? trace_hardirqs_on_caller+0x310/0x310
[  426.900529]  ? trace_hardirqs_on_caller+0x310/0x310
[  426.905541]  ? task_prio+0x50/0x50
[  426.909074]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.914609]  ? check_preemption_disabled+0x48/0x280
[  426.919625]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  426.924466]  apic_timer_interrupt+0xf/0x20
[  426.928695]  </IRQ>
[  426.930939] RIP: 0010:dump_stack+0x358/0x39d
[  426.935340] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  426.954234] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  426.962857] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  426.970114] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  426.977373] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  426.984656] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  426.991916] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  426.999195]  ? dump_stack+0x34f/0x39d
[  427.003003]  ? dump_stack_print_info.cold.1+0x20/0x20
[  427.008188]  ? mark_held_locks+0x130/0x130
[  427.012418]  ? mark_held_locks+0x130/0x130
[  427.016652]  dump_header+0x27b/0xf72
[  427.020370]  ? pagefault_out_of_memory+0x197/0x197
[  427.025300]  ? __lock_acquire+0x62f/0x4c20
[  427.029537]  ? percpu_ref_get_many+0x240/0x240
[  427.034114]  ? print_usage_bug+0xc0/0xc0
[  427.038188]  ? zap_class+0x640/0x640
[  427.041900]  ? print_usage_bug+0xc0/0xc0
[  427.045953]  ? print_usage_bug+0xc0/0xc0
[  427.050011]  ? zap_class+0x640/0x640
[  427.053723]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.060003]  ? find_held_lock+0x36/0x1c0
[  427.064065]  ? mark_held_locks+0xc7/0x130
[  427.068210]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  427.073304]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  427.078399]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  427.082976]  ? trace_hardirqs_on+0xbd/0x310
[  427.087293]  ? kasan_check_read+0x11/0x20
[  427.091436]  ? ___ratelimit+0x3b4/0x672
[  427.095408]  ? trace_hardirqs_off_caller+0x310/0x310
[  427.100518]  ? trace_hardirqs_on+0x310/0x310
[  427.104916]  ? lock_downgrade+0x900/0x900
[  427.109056]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  427.114164]  ? ___ratelimit+0x3b9/0x672
[  427.118131]  ? idr_get_free+0xf70/0xf70
[  427.122101]  ? find_held_lock+0x36/0x1c0
[  427.126166]  oom_kill_process.cold.27+0x10/0x903
[  427.130918]  ? zap_class+0x640/0x640
[  427.134629]  ? check_preemption_disabled+0x48/0x280
[  427.139639]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  427.144580]  ? kasan_check_read+0x11/0x20
[  427.148725]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  427.153999]  ? oom_evaluate_task+0x540/0x540
[  427.159214]  ? find_held_lock+0x36/0x1c0
[  427.163274]  ? out_of_memory+0x974/0x1430
[  427.167416]  ? lock_downgrade+0x900/0x900
[  427.171556]  ? check_preemption_disabled+0x48/0x280
[  427.176570]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  427.181494]  ? kasan_check_read+0x11/0x20
[  427.185635]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  427.190905]  ? rcu_softirq_qs+0x20/0x20
[  427.194877]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.200406]  ? oom_evaluate_task+0x302/0x540
[  427.204816]  out_of_memory+0xa84/0x1430
[  427.208790]  ? oom_killer_disable+0x3a0/0x3a0
[  427.213279]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  427.218206]  ? __ww_mutex_check_waiters+0x160/0x160
[  427.223224]  __alloc_pages_slowpath+0x2354/0x2e10
[  427.228088]  ? warn_alloc+0x120/0x120
[  427.231882]  ? mark_held_locks+0x130/0x130
[  427.236115]  ? find_get_entry+0xaae/0x1120
[  427.240349]  ? filemap_map_pages+0x1a20/0x1a20
[  427.244931]  ? zap_class+0x640/0x640
[  427.248646]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.254174]  ? check_preemption_disabled+0x48/0x280
[  427.259992]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.265538]  ? should_fail+0x22d/0xd01
[  427.269439]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  427.274544]  ? zap_class+0x640/0x640
[  427.278273]  ? __lock_is_held+0xb5/0x140
[  427.282333]  ? mark_held_locks+0x130/0x130
[  427.286567]  ? lock_release+0xa00/0xa00
[  427.290531]  ? perf_trace_sched_process_exec+0x860/0x860
[  427.295976]  ? xa_load+0x2ba/0x460
[  427.299512]  ? lock_downgrade+0x900/0x900
[  427.303658]  ? __might_sleep+0x95/0x190
[  427.307627]  __alloc_pages_nodemask+0xa80/0xde0
[  427.312293]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  427.317301]  ? __page_cache_alloc+0x191/0x5c0
[  427.321787]  ? xa_load+0x2e1/0x460
[  427.325321]  ? xa_clear_mark+0x40/0x40
[  427.329216]  ? zap_class+0x640/0x640
[  427.332931]  ? zap_class+0x640/0x640
[  427.336657]  ? zap_class+0x640/0x640
[  427.340367]  ? __do_page_cache_readahead+0x663/0x810
[  427.345472]  ? find_held_lock+0x36/0x1c0
[  427.349534]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  427.355329]  alloc_pages_current+0x173/0x350
[  427.360505]  __page_cache_alloc+0x38c/0x5c0
[  427.364819]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  427.369740]  ? kasan_check_read+0x11/0x20
[  427.373879]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  427.379237]  ? generic_perform_write+0x6a0/0x6a0
[  427.384007]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.389538]  ? check_preemption_disabled+0x48/0x280
[  427.394554]  filemap_fault+0x1595/0x25f0
[  427.398621]  ? __lock_page_or_retry+0xa00/0xa00
[  427.403285]  ? mark_held_locks+0x130/0x130
[  427.407535]  ? filemap_map_pages+0xd6b/0x1a20
[  427.412024]  ? lock_downgrade+0x900/0x900
[  427.416168]  ? check_preemption_disabled+0x48/0x280
[  427.421183]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  427.426109]  ? kasan_check_read+0x11/0x20
[  427.430250]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  427.435522]  ? rcu_softirq_qs+0x20/0x20
[  427.439501]  ? filemap_map_pages+0xd92/0x1a20
[  427.444005]  ? find_get_entries_tag+0x1400/0x1400
[  427.448857]  ? debug_object_destroy+0x2b0/0x2b0
[  427.453527]  ? lock_pi_update_atomic+0x150/0x150
[  427.459269]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.464814]  ? lock_acquire+0x1ed/0x520
[  427.468790]  ? ext4_filemap_fault+0x7a/0xad
[  427.473108]  ? lock_release+0xa00/0xa00
[  427.477071]  ? perf_trace_sched_process_exec+0x860/0x860
[  427.482516]  ? print_usage_bug+0xc0/0xc0
[  427.486583]  ? print_usage_bug+0xc0/0xc0
[  427.490668]  ? down_read+0x8d/0x120
[  427.494285]  ? ext4_filemap_fault+0x7a/0xad
[  427.498602]  ? __down_interruptible+0x700/0x700
[  427.503273]  ext4_filemap_fault+0x82/0xad
[  427.507415]  __do_fault+0x100/0x6b0
[  427.511046]  ? pmd_devmap_trans_unstable+0x220/0x220
[  427.516144]  ? mark_held_locks+0x130/0x130
[  427.520373]  ? mark_held_locks+0x130/0x130
[  427.524604]  ? do_raw_spin_trylock+0x270/0x270
[  427.529189]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.534723]  __handle_mm_fault+0x3ea0/0x5be0
[  427.539120]  ? perf_trace_lock+0x7a0/0x7a0
[  427.543353]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  427.548191]  ? __switch_to_asm+0x34/0x70
[  427.552240]  ? __switch_to_asm+0x34/0x70
[  427.556302]  ? zap_class+0x640/0x640
[  427.560819]  ? zap_class+0x640/0x640
[  427.564536]  ? __x64_sys_futex+0x53e/0x6a0
[  427.568768]  ? find_held_lock+0x36/0x1c0
[  427.572829]  ? handle_mm_fault+0x42a/0xc70
[  427.577061]  ? lock_downgrade+0x900/0x900
[  427.581200]  ? check_preemption_disabled+0x48/0x280
[  427.586213]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  427.591136]  ? kasan_check_read+0x11/0x20
[  427.595277]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  427.600560]  ? rcu_softirq_qs+0x20/0x20
[  427.604538]  ? trace_hardirqs_off_caller+0x310/0x310
[  427.609634]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.615164]  ? check_preemption_disabled+0x48/0x280
[  427.620181]  handle_mm_fault+0x54f/0xc70
[  427.624240]  ? __handle_mm_fault+0x5be0/0x5be0
[  427.628822]  ? find_vma+0x34/0x190
[  427.632363]  __do_page_fault+0x5e8/0xe60
[  427.636503]  ? trace_hardirqs_off+0xb8/0x310
[  427.640917]  do_page_fault+0xf2/0x7e0
[  427.644716]  ? vmalloc_sync_all+0x30/0x30
[  427.648855]  ? error_entry+0x70/0xd0
[  427.652575]  ? trace_hardirqs_off_caller+0xbb/0x310
[  427.657588]  ? trace_hardirqs_on_caller+0xc0/0x310
[  427.663261]  ? syscall_return_slowpath+0x5e0/0x5e0
[  427.668187]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.673025]  ? trace_hardirqs_on_caller+0x310/0x310
[  427.678032]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  427.683484]  ? prepare_exit_to_usermode+0x291/0x3b0
[  427.688491]  ? page_fault+0x8/0x30
[  427.692043]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.696879]  ? page_fault+0x8/0x30
[  427.700413]  page_fault+0x1e/0x30
[  427.703860] RIP: 0033:0x45ddf3
[  427.707051] Code: Bad RIP value.
[  427.710402] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  427.715761] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  427.723024] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  427.730287] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  427.737546] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  427.744804] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  427.752083] warn_alloc_show_mem: 1 callbacks suppressed
[  427.752091] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  427.752093] Mem-Info:
[  427.752120] active_anon:54141 inactive_anon:292 isolated_anon:0
[  427.752120]  active_file:12 inactive_file:13 isolated_file:0
[  427.752120]  unevictable:0 dirty:0 writeback:0 unstable:0
[  427.752120]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  427.752120]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  427.752120]  free:13705 free_pcp:178 free_cma:0
[  427.757478] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  427.764902] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  427.767290] Call Trace:
[  427.800153] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  427.809500]  dump_stack+0x244/0x39d
[  427.837132] lowmem_reserve[]: 0 2818 6321 6321
[  427.839714]  ? dump_stack_print_info.cold.1+0x20/0x20
[  427.866753] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  427.870380]  warn_alloc.cold.116+0xb7/0x1bd
[  427.874918] lowmem_reserve[]: 0 0 3503 3503
[  427.880101]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  427.907565] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  427.911903]  ? lock_downgrade+0x900/0x900
[  427.916190] lowmem_reserve[]: 0 0 0 0
[  427.921023]  ? trace_hardirqs_off+0xb8/0x310
[  427.950454] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  427.954605]  ? trace_hardirqs_off+0xb8/0x310
[  427.959317] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  427.963723]  __alloc_pages_slowpath+0x26e8/0x2e10
[  427.977203] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  427.981632]  ? warn_alloc+0x120/0x120
[  427.996847] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  428.001670]  ? print_usage_bug+0xc0/0xc0
[  428.015857] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  428.019634]  ? warn_alloc+0x120/0x120
[  428.028440] 366 total pagecache pages
[  428.032489]  ? warn_alloc+0x120/0x120
[  428.041041] 0 pages in swap cache
[  428.044826]  ? print_usage_bug+0xc0/0xc0
[  428.048598] Swap cache stats: add 0, delete 0, find 0/0
[  428.052385]  ? print_usage_bug+0xc0/0xc0
[  428.055809] Free swap  = 0kB
[  428.060172]  ? __lock_acquire+0x62f/0x4c20
[  428.065504] Total swap = 0kB
[  428.069551]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.072540] 1965979 pages RAM
[  428.076762]  ? should_fail+0x22d/0xd01
[  428.079747] 0 pages HighMem/MovableOnly
[  428.079754] 342854 pages reserved
[  428.085280]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  428.088355] 0 pages cma reserved
[  428.092226]  ? __lock_acquire+0x62f/0x4c20
[  428.096296] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  428.099610]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  428.104681] syz-fuzzer cpuset=/ mems_allowed=0
[  428.108033]  ? __lock_acquire+0x62f/0x4c20
[  428.136304]  ? should_fail+0x22d/0xd01
[  428.140183]  ? find_held_lock+0x36/0x1c0
[  428.144242]  ? mark_held_locks+0x130/0x130
[  428.148488]  ? mark_held_locks+0x130/0x130
[  428.152715]  ? zap_class+0x640/0x640
[  428.156427]  ? zap_class+0x640/0x640
[  428.160409]  ? print_usage_bug+0xc0/0xc0
[  428.164460]  ? do_raw_spin_unlock+0xa7/0x330
[  428.168857]  ? zap_class+0x640/0x640
[  428.172563]  ? print_usage_bug+0xc0/0xc0
[  428.176617]  ? wq_watchdog_touch+0x9c/0xfe
[  428.180845]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.186378]  ? check_preemption_disabled+0x48/0x280
[  428.191416]  ? __lock_is_held+0xb5/0x140
[  428.195478]  __alloc_pages_nodemask+0xa80/0xde0
[  428.200270]  ? zap_class+0x640/0x640
[  428.203998]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  428.209018]  ? find_held_lock+0x36/0x1c0
[  428.213085]  ? ____cache_alloc_node+0x1c7/0x1e0
[  428.217751]  ? lock_downgrade+0x900/0x900
[  428.221899]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.227438]  cache_grow_begin+0xa5/0x8c0
[  428.231493]  ? do_raw_spin_unlock+0xa7/0x330
[  428.235908]  fallback_alloc+0x204/0x2e0
[  428.239883]  ____cache_alloc_node+0x1c7/0x1e0
[  428.244385]  kmem_cache_alloc_node+0xe3/0x730
[  428.248883]  ? ipv6_get_ifaddr+0x42e/0x620
[  428.253122]  __alloc_skb+0x119/0x770
[  428.256830]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.262405]  ? netdev_alloc_frag+0x1f0/0x1f0
[  428.266810]  ? lock_downgrade+0x900/0x900
[  428.270954]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.276479]  ? refcount_sub_and_test_checked+0x203/0x310
[  428.281926]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  428.287369]  ? addrconf_rs_timer+0x690/0x690
[  428.291783]  ndisc_alloc_skb+0x144/0x340
[  428.295838]  ndisc_send_rs+0x331/0x6e0
[  428.299724]  addrconf_rs_timer+0x314/0x690
[  428.303954]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  428.308203]  call_timer_fn+0x272/0x920
[  428.312096]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  428.316324]  ? process_timeout+0x40/0x40
[  428.320384]  ? __run_timers+0x7da/0xc70
[  428.324364]  ? _raw_spin_unlock_irq+0x27/0x80
[  428.328854]  ? _raw_spin_unlock_irq+0x27/0x80
[  428.333339]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  428.337569]  ? lockdep_hardirqs_on+0x296/0x5b0
[  428.342142]  ? trace_hardirqs_on+0xbd/0x310
[  428.346472]  ? kasan_check_read+0x11/0x20
[  428.350616]  ? __run_timers+0x7da/0xc70
[  428.354588]  ? trace_hardirqs_off_caller+0x310/0x310
[  428.360043]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  428.364366]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  428.368598]  __run_timers+0x7e5/0xc70
[  428.372409]  ? timer_fixup_init+0x70/0x70
[  428.376546]  ? _raw_spin_unlock_irq+0x27/0x80
[  428.381129]  ? _raw_spin_unlock_irq+0x27/0x80
[  428.385618]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  428.390200]  ? trace_hardirqs_on+0xbd/0x310
[  428.394516]  ? kasan_check_read+0x11/0x20
[  428.398670]  ? finish_task_switch+0x1f4/0x910
[  428.403157]  ? trace_hardirqs_off_caller+0x310/0x310
[  428.408256]  ? compat_start_thread+0x80/0x80
[  428.412677]  ? pvclock_read_flags+0x160/0x160
[  428.417162]  ? __switch_to_asm+0x34/0x70
[  428.421217]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.426747]  ? check_preemption_disabled+0x48/0x280
[  428.431761]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  428.437293]  ? rcu_pm_notify+0xc0/0xc0
[  428.441185]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.446710]  ? check_preemption_disabled+0x48/0x280
[  428.451726]  run_timer_softirq+0x52/0xb0
[  428.455783]  ? rcu_read_lock_sched_held+0x14f/0x180
[  428.461076]  __do_softirq+0x308/0xb7e
[  428.464874]  ? trace_hardirqs_on_caller+0xc0/0x310
[  428.469801]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  428.474897]  ? trace_hardirqs_on+0x310/0x310
[  428.479320]  ? schedule+0x108/0x460
[  428.482954]  ? trace_hardirqs_off+0xb8/0x310
[  428.487354]  ? smpboot_thread_fn+0x68b/0xa00
[  428.491781]  ? trace_hardirqs_on+0x310/0x310
[  428.496184]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.501713]  ? check_preemption_disabled+0x48/0x280
[  428.506735]  ? takeover_tasklets+0xa90/0xa90
[  428.511135]  run_ksoftirqd+0x5e/0x100
[  428.514928]  smpboot_thread_fn+0x68b/0xa00
[  428.519154]  ? sort_range+0x30/0x30
[  428.522771]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  428.527886]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.533418]  ? __kthread_parkme+0xfb/0x1a0
[  428.537648]  ? sort_range+0x30/0x30
[  428.541265]  kthread+0x35a/0x440
[  428.544623]  ? kthread_stop+0x900/0x900
[  428.548588]  ret_from_fork+0x3a/0x50
[  428.552311] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  428.552384] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  428.559975] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  428.566536] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  428.575788] Call Trace:
[  428.586079] ksoftirqd/0 cpuset=/ mems_allowed=0
[  428.588645]  <IRQ>
[  428.595433]  dump_stack+0x244/0x39d
[  428.599063]  ? dump_stack_print_info.cold.1+0x20/0x20
[  428.604259]  warn_alloc.cold.116+0xb7/0x1bd
[  428.608576]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  428.613420]  ? lock_downgrade+0x900/0x900
[  428.617569]  ? trace_hardirqs_off+0xb8/0x310
[  428.621976]  ? trace_hardirqs_off+0xb8/0x310
[  428.626391]  __alloc_pages_slowpath+0x26e8/0x2e10
[  428.631267]  ? warn_alloc+0x120/0x120
[  428.635063]  ? warn_alloc+0x120/0x120
[  428.639034]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  428.644048]  ? warn_alloc+0x120/0x120
[  428.647840]  ? print_usage_bug+0xc0/0xc0
[  428.651898]  ? print_usage_bug+0xc0/0xc0
[  428.655947]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  428.661600]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.667132]  ? should_fail+0x22d/0xd01
[  428.671018]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  428.676117]  ? __lock_acquire+0x62f/0x4c20
[  428.680353]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  428.685452]  ? should_fail+0x22d/0xd01
[  428.689336]  ? mark_held_locks+0x130/0x130
[  428.693570]  ? mark_held_locks+0x130/0x130
[  428.697798]  ? print_usage_bug+0xc0/0xc0
[  428.701853]  ? find_held_lock+0x36/0x1c0
[  428.705909]  ? zap_class+0x640/0x640
[  428.709648]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.715181]  ? check_preemption_disabled+0x48/0x280
[  428.720196]  ? __lock_is_held+0xb5/0x140
[  428.724254]  __alloc_pages_nodemask+0xa80/0xde0
[  428.728924]  ? zap_class+0x640/0x640
[  428.732636]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  428.737657]  ? find_held_lock+0x36/0x1c0
[  428.741718]  ? ____cache_alloc_node+0x1c7/0x1e0
[  428.746495]  ? lock_downgrade+0x900/0x900
[  428.750645]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.756178]  cache_grow_begin+0xa5/0x8c0
[  428.761201]  ? do_raw_spin_unlock+0xa7/0x330
[  428.765606]  fallback_alloc+0x204/0x2e0
[  428.769580]  ____cache_alloc_node+0x1c7/0x1e0
[  428.774075]  kmem_cache_alloc_node+0xe3/0x730
[  428.778560]  ? mark_held_locks+0xc7/0x130
[  428.782707]  __alloc_skb+0x119/0x770
[  428.786416]  ? netdev_alloc_frag+0x1f0/0x1f0
[  428.790814]  ? do_raw_spin_trylock+0x270/0x270
[  428.795404]  ? kmem_cache_alloc_trace+0x353/0x750
[  428.800245]  ? queue_work_on+0x12c/0x1e0
[  428.804304]  ? switchdev_port_obj_del+0xdc/0x440
[  428.809049]  ? switchdev_trans_item_enqueue+0x260/0x260
[  428.814408]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  428.819429]  __br_mdb_notify+0x4ff/0x15d0
[  428.823569]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  428.828672]  ? __br_mdb_add+0x7f0/0x7f0
[  428.832642]  ? mark_held_locks+0x130/0x130
[  428.836891]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  428.841989]  ? debug_object_assert_init+0x368/0x4b0
[  428.847002]  ? debug_object_init_on_stack+0x20/0x20
[  428.852007]  ? zap_class+0x640/0x640
[  428.855712]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.862225]  br_mdb_notify+0x310/0x410
[  428.866111]  ? br_mdb_dump+0x27b0/0x27b0
[  428.870181]  br_multicast_del_pg+0x3df/0x790
[  428.874591]  ? br_mdb_ip_get+0x940/0x940
[  428.878647]  ? rwlock_bug.part.2+0x90/0x90
[  428.882886]  ? __lock_is_held+0xb5/0x140
[  428.886949]  br_multicast_port_group_expired+0x189/0x1e0
[  428.892404]  call_timer_fn+0x272/0x920
[  428.896303]  ? br_multicast_del_pg+0x790/0x790
[  428.900882]  ? process_timeout+0x40/0x40
[  428.904947]  ? mark_held_locks+0xc7/0x130
[  428.909091]  ? _raw_spin_unlock_irq+0x27/0x80
[  428.913589]  ? _raw_spin_unlock_irq+0x27/0x80
[  428.918081]  ? br_multicast_del_pg+0x790/0x790
[  428.922660]  ? lockdep_hardirqs_on+0x296/0x5b0
[  428.927242]  ? trace_hardirqs_on+0xbd/0x310
[  428.931556]  ? kasan_check_read+0x11/0x20
[  428.935694]  ? __run_timers+0x7da/0xc70
[  428.939659]  ? trace_hardirqs_off_caller+0x310/0x310
[  428.944762]  ? br_multicast_del_pg+0x790/0x790
[  428.949352]  ? br_multicast_del_pg+0x790/0x790
[  428.953923]  __run_timers+0x7e5/0xc70
[  428.958399]  ? timer_fixup_init+0x70/0x70
[  428.962562]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  428.967575]  ? zap_class+0x640/0x640
[  428.971288]  ? print_usage_bug+0xc0/0xc0
[  428.975351]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  428.980538]  ? find_held_lock+0x36/0x1c0
[  428.984596]  ? zap_class+0x640/0x640
[  428.988316]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.993854]  ? check_preemption_disabled+0x48/0x280
[  428.998880]  ? __lock_is_held+0xb5/0x140
[  429.002943]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.008476]  ? check_preemption_disabled+0x48/0x280
[  429.013489]  run_timer_softirq+0x52/0xb0
[  429.017542]  ? rcu_read_lock_sched_held+0x14f/0x180
[  429.022552]  __do_softirq+0x308/0xb7e
[  429.026353]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  429.030842]  ? lock_downgrade+0x900/0x900
[  429.034993]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  429.040095]  ? pvclock_read_flags+0x160/0x160
[  429.044592]  ? lapic_next_event+0x5a/0x90
[  429.048734]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.054273]  ? kvm_clock_read+0x18/0x30
[  429.058991]  ? kvm_sched_clock_read+0x9/0x20
[  429.063393]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.068922]  ? check_preemption_disabled+0x48/0x280
[  429.073936]  irq_exit+0x17f/0x1c0
[  429.077380]  smp_apic_timer_interrupt+0x1cb/0x760
[  429.082233]  ? smp_reschedule_interrupt+0x109/0x650
[  429.087239]  ? smp_call_function_single_interrupt+0x650/0x650
[  429.093113]  ? interrupt_entry+0xb5/0xc0
[  429.097178]  ? trace_hardirqs_off_caller+0xbb/0x310
[  429.102186]  ? trace_hardirqs_off_caller+0xbb/0x310
[  429.107196]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.112034]  ? trace_hardirqs_on_caller+0x310/0x310
[  429.117038]  ? trace_hardirqs_on_caller+0x310/0x310
[  429.122043]  ? task_prio+0x50/0x50
[  429.125577]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.131110]  ? check_preemption_disabled+0x48/0x280
[  429.136124]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.140962]  apic_timer_interrupt+0xf/0x20
[  429.145182]  </IRQ>
[  429.147415] RIP: 0010:dump_stack+0x358/0x39d
[  429.151818] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  429.171741] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  429.179439] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  429.186700] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  429.193963] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  429.201223] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  429.208485] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  429.215865]  ? dump_stack+0x34f/0x39d
[  429.219675]  ? dump_stack_print_info.cold.1+0x20/0x20
[  429.224897]  ? mark_held_locks+0x130/0x130
[  429.229147]  ? mark_held_locks+0x130/0x130
[  429.233381]  dump_header+0x27b/0xf72
[  429.237099]  ? pagefault_out_of_memory+0x197/0x197
[  429.242026]  ? __lock_acquire+0x62f/0x4c20
[  429.246251]  ? percpu_ref_get_many+0x240/0x240
[  429.250827]  ? print_usage_bug+0xc0/0xc0
[  429.254895]  ? zap_class+0x640/0x640
[  429.259425]  ? print_usage_bug+0xc0/0xc0
[  429.263476]  ? print_usage_bug+0xc0/0xc0
[  429.267548]  ? zap_class+0x640/0x640
[  429.271261]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.276797]  ? find_held_lock+0x36/0x1c0
[  429.280862]  ? mark_held_locks+0xc7/0x130
[  429.285004]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  429.290098]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  429.295192]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  429.299786]  ? trace_hardirqs_on+0xbd/0x310
[  429.304100]  ? kasan_check_read+0x11/0x20
[  429.308239]  ? ___ratelimit+0x3b4/0x672
[  429.312208]  ? trace_hardirqs_off_caller+0x310/0x310
[  429.317332]  ? trace_hardirqs_on+0x310/0x310
[  429.321730]  ? lock_downgrade+0x900/0x900
[  429.325873]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  429.330973]  ? ___ratelimit+0x3b9/0x672
[  429.334947]  ? idr_get_free+0xf70/0xf70
[  429.338918]  ? find_held_lock+0x36/0x1c0
[  429.342983]  oom_kill_process.cold.27+0x10/0x903
[  429.347732]  ? zap_class+0x640/0x640
[  429.351441]  ? check_preemption_disabled+0x48/0x280
[  429.356458]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  429.361908]  ? kasan_check_read+0x11/0x20
[  429.366049]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.371327]  ? oom_evaluate_task+0x540/0x540
[  429.375735]  ? find_held_lock+0x36/0x1c0
[  429.379796]  ? out_of_memory+0x974/0x1430
[  429.383937]  ? lock_downgrade+0x900/0x900
[  429.388078]  ? check_preemption_disabled+0x48/0x280
[  429.393088]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  429.398010]  ? kasan_check_read+0x11/0x20
[  429.402149]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.407419]  ? rcu_softirq_qs+0x20/0x20
[  429.411392]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.416919]  ? oom_evaluate_task+0x302/0x540
[  429.421329]  out_of_memory+0xa84/0x1430
[  429.425306]  ? oom_killer_disable+0x3a0/0x3a0
[  429.429825]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  429.434770]  ? __ww_mutex_check_waiters+0x160/0x160
[  429.439787]  __alloc_pages_slowpath+0x2354/0x2e10
[  429.444647]  ? warn_alloc+0x120/0x120
[  429.448439]  ? mark_held_locks+0x130/0x130
[  429.452671]  ? find_get_entry+0xaae/0x1120
[  429.456905]  ? filemap_map_pages+0x1a20/0x1a20
[  429.461803]  ? zap_class+0x640/0x640
[  429.465512]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.471043]  ? check_preemption_disabled+0x48/0x280
[  429.476050]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.481581]  ? should_fail+0x22d/0xd01
[  429.485559]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  429.490656]  ? zap_class+0x640/0x640
[  429.494382]  ? __lock_is_held+0xb5/0x140
[  429.498446]  ? mark_held_locks+0x130/0x130
[  429.502677]  ? lock_release+0xa00/0xa00
[  429.506642]  ? perf_trace_sched_process_exec+0x860/0x860
[  429.512083]  ? xa_load+0x2ba/0x460
[  429.515614]  ? lock_downgrade+0x900/0x900
[  429.519760]  ? __might_sleep+0x95/0x190
[  429.523732]  __alloc_pages_nodemask+0xa80/0xde0
[  429.528402]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  429.533410]  ? __page_cache_alloc+0x191/0x5c0
[  429.537897]  ? xa_load+0x2e1/0x460
[  429.541434]  ? xa_clear_mark+0x40/0x40
[  429.545340]  ? zap_class+0x640/0x640
[  429.549053]  ? zap_class+0x640/0x640
[  429.552769]  ? zap_class+0x640/0x640
[  429.556474]  ? __do_page_cache_readahead+0x663/0x810
[  429.562366]  ? find_held_lock+0x36/0x1c0
[  429.566422]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  429.571965]  alloc_pages_current+0x173/0x350
[  429.576375]  __page_cache_alloc+0x38c/0x5c0
[  429.580690]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  429.585611]  ? kasan_check_read+0x11/0x20
[  429.589759]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.595030]  ? generic_perform_write+0x6a0/0x6a0
[  429.599784]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.605326]  ? check_preemption_disabled+0x48/0x280
[  429.610346]  filemap_fault+0x1595/0x25f0
[  429.614421]  ? __lock_page_or_retry+0xa00/0xa00
[  429.619086]  ? mark_held_locks+0x130/0x130
[  429.623326]  ? filemap_map_pages+0xd6b/0x1a20
[  429.627814]  ? lock_downgrade+0x900/0x900
[  429.631962]  ? check_preemption_disabled+0x48/0x280
[  429.636972]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  429.641893]  ? kasan_check_read+0x11/0x20
[  429.646035]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.651313]  ? rcu_softirq_qs+0x20/0x20
[  429.655295]  ? filemap_map_pages+0xd92/0x1a20
[  429.660791]  ? find_get_entries_tag+0x1400/0x1400
[  429.665639]  ? debug_object_destroy+0x2b0/0x2b0
[  429.670310]  ? lock_pi_update_atomic+0x150/0x150
[  429.675060]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.680601]  ? lock_acquire+0x1ed/0x520
[  429.684567]  ? ext4_filemap_fault+0x7a/0xad
[  429.688885]  ? lock_release+0xa00/0xa00
[  429.692849]  ? perf_trace_sched_process_exec+0x860/0x860
[  429.698291]  ? print_usage_bug+0xc0/0xc0
[  429.702357]  ? print_usage_bug+0xc0/0xc0
[  429.706436]  ? down_read+0x8d/0x120
[  429.710051]  ? ext4_filemap_fault+0x7a/0xad
[  429.714380]  ? __down_interruptible+0x700/0x700
[  429.719054]  ext4_filemap_fault+0x82/0xad
[  429.723197]  __do_fault+0x100/0x6b0
[  429.726829]  ? pmd_devmap_trans_unstable+0x220/0x220
[  429.732450]  ? mark_held_locks+0x130/0x130
[  429.736694]  ? mark_held_locks+0x130/0x130
[  429.740920]  ? do_raw_spin_trylock+0x270/0x270
[  429.745498]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.751036]  __handle_mm_fault+0x3ea0/0x5be0
[  429.755437]  ? perf_trace_lock+0x7a0/0x7a0
[  429.760728]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  429.765567]  ? __switch_to_asm+0x34/0x70
[  429.769615]  ? __switch_to_asm+0x34/0x70
[  429.773681]  ? zap_class+0x640/0x640
[  429.777386]  ? zap_class+0x640/0x640
[  429.781093]  ? __x64_sys_futex+0x53e/0x6a0
[  429.785329]  ? find_held_lock+0x36/0x1c0
[  429.789396]  ? handle_mm_fault+0x42a/0xc70
[  429.793626]  ? lock_downgrade+0x900/0x900
[  429.797768]  ? check_preemption_disabled+0x48/0x280
[  429.802785]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  429.807711]  ? kasan_check_read+0x11/0x20
[  429.811846]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.817113]  ? rcu_softirq_qs+0x20/0x20
[  429.821081]  ? trace_hardirqs_off_caller+0x310/0x310
[  429.826182]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.831710]  ? check_preemption_disabled+0x48/0x280
[  429.836722]  handle_mm_fault+0x54f/0xc70
[  429.840782]  ? __handle_mm_fault+0x5be0/0x5be0
[  429.845363]  ? find_vma+0x34/0x190
[  429.848906]  __do_page_fault+0x5e8/0xe60
[  429.852969]  ? trace_hardirqs_off+0xb8/0x310
[  429.858337]  do_page_fault+0xf2/0x7e0
[  429.862135]  ? vmalloc_sync_all+0x30/0x30
[  429.866276]  ? error_entry+0x70/0xd0
[  429.869990]  ? trace_hardirqs_off_caller+0xbb/0x310
[  429.875001]  ? trace_hardirqs_on_caller+0xc0/0x310
[  429.879926]  ? syscall_return_slowpath+0x5e0/0x5e0
[  429.884848]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.889683]  ? trace_hardirqs_on_caller+0x310/0x310
[  429.894708]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  429.900171]  ? prepare_exit_to_usermode+0x291/0x3b0
[  429.905182]  ? page_fault+0x8/0x30
[  429.908725]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.913580]  ? page_fault+0x8/0x30
[  429.917139]  page_fault+0x1e/0x30
[  429.920587] RIP: 0033:0x45ddf3
[  429.923780] Code: Bad RIP value.
[  429.927653] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  429.933007] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  429.940267] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  429.947536] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  429.954803] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  429.963011] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  429.970307] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  429.970311] warn_alloc_show_mem: 1 callbacks suppressed
[  429.970317] Mem-Info:
[  429.977054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  429.982423] active_anon:54141 inactive_anon:292 isolated_anon:0
[  429.982423]  active_file:12 inactive_file:13 isolated_file:0
[  429.982423]  unevictable:0 dirty:0 writeback:0 unstable:0
[  429.982423]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  429.982423]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  429.982423]  free:13705 free_pcp:178 free_cma:0
[  429.984792] Call Trace:
[  429.994184] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  430.027030]  dump_stack+0x244/0x39d
[  430.029581] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  430.057242]  ? dump_stack_print_info.cold.1+0x20/0x20
[  430.061617] lowmem_reserve[]: 0 2818 6321 6321
[  430.087732]  warn_alloc.cold.116+0xb7/0x1bd
[  430.092883] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  430.097451]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  430.101741] lowmem_reserve[]: 0 0 3503 3503
[  430.129225]  ? lock_downgrade+0x900/0x900
[  430.134036] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  430.138363]  ? trace_hardirqs_off+0xb8/0x310
[  430.142476] lowmem_reserve[]: 0 0 0 0
[  430.171747]  ? trace_hardirqs_off+0xb8/0x310
[  430.176127] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  430.179919]  __alloc_pages_slowpath+0x26e8/0x2e10
[  430.184297] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  430.197831]  ? warn_alloc+0x120/0x120
[  430.202625] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  430.217959]  ? print_usage_bug+0xc0/0xc0
[  430.221733] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  430.235930]  ? warn_alloc+0x120/0x120
[  430.239969] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  430.248800]  ? warn_alloc+0x120/0x120
[  430.252570] 366 total pagecache pages
[  430.261466]  ? print_usage_bug+0xc0/0xc0
[  430.265266] 0 pages in swap cache
[  430.269057]  ? print_usage_bug+0xc0/0xc0
[  430.273089] Swap cache stats: add 0, delete 0, find 0/0
[  430.276521]  ? __lock_acquire+0x62f/0x4c20
[  430.280557] Free swap  = 0kB
[  430.285908]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.290111] Total swap = 0kB
[  430.293117]  ? should_fail+0x22d/0xd01
[  430.298622] 1965979 pages RAM
[  430.301628]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  430.305484] 0 pages HighMem/MovableOnly
[  430.308573]  ? __lock_acquire+0x62f/0x4c20
[  430.313646] 342854 pages reserved
[  430.317641]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  430.321843] 0 pages cma reserved
[  430.325288]  ? __lock_acquire+0x62f/0x4c20
[  430.330551] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  430.333709]  ? should_fail+0x22d/0xd01
[  430.337921] syz-fuzzer cpuset=/ mems_allowed=0
[  430.348128]  ? find_held_lock+0x36/0x1c0
[  430.361000]  ? mark_held_locks+0x130/0x130
[  430.365235]  ? mark_held_locks+0x130/0x130
[  430.369468]  ? zap_class+0x640/0x640
[  430.373182]  ? mark_held_locks+0xc7/0x130
[  430.377324]  ? do_raw_spin_unlock+0xa7/0x330
[  430.381725]  ? zap_class+0x640/0x640
[  430.385431]  ? print_usage_bug+0xc0/0xc0
[  430.389494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.395027]  ? check_preemption_disabled+0x48/0x280
[  430.400043]  ? __lock_is_held+0xb5/0x140
[  430.404104]  __alloc_pages_nodemask+0xa80/0xde0
[  430.408786]  ? zap_class+0x640/0x640
[  430.412501]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  430.417523]  ? find_held_lock+0x36/0x1c0
[  430.421587]  ? ____cache_alloc_node+0x1c7/0x1e0
[  430.426259]  ? lock_downgrade+0x900/0x900
[  430.430419]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.435951]  cache_grow_begin+0xa5/0x8c0
[  430.440089]  ? do_raw_spin_unlock+0xa7/0x330
[  430.444498]  fallback_alloc+0x204/0x2e0
[  430.448469]  ____cache_alloc_node+0x1c7/0x1e0
[  430.452960]  kmem_cache_alloc_node+0xe3/0x730
[  430.457450]  ? ipv6_get_ifaddr+0x42e/0x620
[  430.462013]  __alloc_skb+0x119/0x770
[  430.465721]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.470998]  ? netdev_alloc_frag+0x1f0/0x1f0
[  430.475403]  ? lock_downgrade+0x900/0x900
[  430.479551]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.485084]  ? refcount_sub_and_test_checked+0x203/0x310
[  430.490529]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  430.495976]  ? addrconf_rs_timer+0x690/0x690
[  430.500386]  ndisc_alloc_skb+0x144/0x340
[  430.504443]  ndisc_send_rs+0x331/0x6e0
[  430.508331]  addrconf_rs_timer+0x314/0x690
[  430.512571]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  430.516806]  call_timer_fn+0x272/0x920
[  430.520684]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  430.524911]  ? process_timeout+0x40/0x40
[  430.528973]  ? __run_timers+0x7da/0xc70
[  430.532946]  ? _raw_spin_unlock_irq+0x27/0x80
[  430.537435]  ? _raw_spin_unlock_irq+0x27/0x80
[  430.541926]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  430.546157]  ? lockdep_hardirqs_on+0x296/0x5b0
[  430.550735]  ? trace_hardirqs_on+0xbd/0x310
[  430.555061]  ? kasan_check_read+0x11/0x20
[  430.559548]  ? __run_timers+0x7da/0xc70
[  430.563516]  ? trace_hardirqs_off_caller+0x310/0x310
[  430.568618]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  430.572847]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  430.577073]  __run_timers+0x7e5/0xc70
[  430.580987]  ? timer_fixup_init+0x70/0x70
[  430.585127]  ? _raw_spin_unlock_irq+0x27/0x80
[  430.589784]  ? _raw_spin_unlock_irq+0x27/0x80
[  430.594280]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  430.598857]  ? trace_hardirqs_on+0xbd/0x310
[  430.603170]  ? kasan_check_read+0x11/0x20
[  430.607307]  ? finish_task_switch+0x1f4/0x910
[  430.611794]  ? trace_hardirqs_off_caller+0x310/0x310
[  430.616892]  ? compat_start_thread+0x80/0x80
[  430.621311]  ? pvclock_read_flags+0x160/0x160
[  430.625793]  ? __switch_to_asm+0x34/0x70
[  430.629845]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.635375]  ? check_preemption_disabled+0x48/0x280
[  430.640396]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  430.645927]  ? rcu_pm_notify+0xc0/0xc0
[  430.649824]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.655355]  ? check_preemption_disabled+0x48/0x280
[  430.660683]  run_timer_softirq+0x52/0xb0
[  430.664738]  ? rcu_read_lock_sched_held+0x14f/0x180
[  430.669746]  __do_softirq+0x308/0xb7e
[  430.673547]  ? trace_hardirqs_on_caller+0xc0/0x310
[  430.678472]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  430.683568]  ? trace_hardirqs_on+0x310/0x310
[  430.687973]  ? schedule+0x108/0x460
[  430.691606]  ? trace_hardirqs_off+0xb8/0x310
[  430.696009]  ? smpboot_thread_fn+0x68b/0xa00
[  430.700413]  ? trace_hardirqs_on+0x310/0x310
[  430.704821]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.710369]  ? check_preemption_disabled+0x48/0x280
[  430.715408]  ? takeover_tasklets+0xa90/0xa90
[  430.719818]  run_ksoftirqd+0x5e/0x100
[  430.723612]  smpboot_thread_fn+0x68b/0xa00
[  430.727842]  ? sort_range+0x30/0x30
[  430.731464]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  430.736559]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.742087]  ? __kthread_parkme+0xfb/0x1a0
[  430.746317]  ? sort_range+0x30/0x30
[  430.749938]  kthread+0x35a/0x440
[  430.753302]  ? kthread_stop+0x900/0x900
[  430.757292]  ret_from_fork+0x3a/0x50
[  430.761299] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  430.761368] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  430.768213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  430.768220] Call Trace:
[  430.774782] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  430.784032]  <IRQ>
[  430.786593] ksoftirqd/0 cpuset=/ mems_allowed=0
[  430.796887]  dump_stack+0x244/0x39d
[  430.807273]  ? dump_stack_print_info.cold.1+0x20/0x20
[  430.812465]  warn_alloc.cold.116+0xb7/0x1bd
[  430.816777]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  430.821701]  ? lock_downgrade+0x900/0x900
[  430.825850]  ? trace_hardirqs_off+0xb8/0x310
[  430.830259]  ? trace_hardirqs_off+0xb8/0x310
[  430.834667]  __alloc_pages_slowpath+0x26e8/0x2e10
[  430.839526]  ? warn_alloc+0x120/0x120
[  430.843412]  ? warn_alloc+0x120/0x120
[  430.847208]  ? zap_class+0x640/0x640
[  430.850934]  ? warn_alloc+0x120/0x120
[  430.854730]  ? print_usage_bug+0xc0/0xc0
[  430.859273]  ? idle_cpu+0x1d0/0x1d0
[  430.862892]  ? kvm_sched_clock_read+0x9/0x20
[  430.867295]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  430.872309]  ? print_usage_bug+0xc0/0xc0
[  430.876368]  ? __lock_is_held+0xb5/0x140
[  430.880426]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.885955]  ? should_fail+0x22d/0xd01
[  430.889839]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  430.894933]  ? __lock_acquire+0x62f/0x4c20
[  430.899166]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  430.904259]  ? __lock_acquire+0x62f/0x4c20
[  430.908483]  ? should_fail+0x22d/0xd01
[  430.912383]  ? mark_held_locks+0x130/0x130
[  430.916626]  ? mark_held_locks+0x130/0x130
[  430.920855]  ? __enqueue_entity+0x10d/0x1f0
[  430.925172]  ? zap_class+0x640/0x640
[  430.928877]  ? print_usage_bug+0xc0/0xc0
[  430.932938]  ? __lock_acquire+0x62f/0x4c20
[  430.937165]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.942798]  ? check_preemption_disabled+0x48/0x280
[  430.947811]  ? __lock_is_held+0xb5/0x140
[  430.951867]  __alloc_pages_nodemask+0xa80/0xde0
[  430.956526]  ? zap_class+0x640/0x640
[  430.961043]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  430.966077]  ? find_held_lock+0x36/0x1c0
[  430.970138]  ? ____cache_alloc_node+0x1c7/0x1e0
[  430.974797]  ? lock_downgrade+0x900/0x900
[  430.978939]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.984480]  cache_grow_begin+0xa5/0x8c0
[  430.988528]  ? do_raw_spin_unlock+0xa7/0x330
[  430.992940]  fallback_alloc+0x204/0x2e0
[  430.996913]  ____cache_alloc_node+0x1c7/0x1e0
[  431.001404]  kmem_cache_alloc_node+0xe3/0x730
[  431.005894]  ? ipv6_get_ifaddr+0x42e/0x620
[  431.010128]  __alloc_skb+0x119/0x770
[  431.013831]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.019104]  ? netdev_alloc_frag+0x1f0/0x1f0
[  431.023510]  ? lock_downgrade+0x900/0x900
[  431.027656]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.033184]  ? refcount_sub_and_test_checked+0x203/0x310
[  431.038636]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  431.044080]  ? addrconf_rs_timer+0x690/0x690
[  431.048490]  ndisc_alloc_skb+0x144/0x340
[  431.052547]  ndisc_send_rs+0x331/0x6e0
[  431.056446]  addrconf_rs_timer+0x314/0x690
[  431.061483]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.065732]  call_timer_fn+0x272/0x920
[  431.069614]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.073841]  ? process_timeout+0x40/0x40
[  431.077900]  ? mark_held_locks+0xc7/0x130
[  431.082045]  ? _raw_spin_unlock_irq+0x27/0x80
[  431.086531]  ? _raw_spin_unlock_irq+0x27/0x80
[  431.091015]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.095244]  ? lockdep_hardirqs_on+0x296/0x5b0
[  431.099820]  ? trace_hardirqs_on+0xbd/0x310
[  431.104142]  ? kasan_check_read+0x11/0x20
[  431.108293]  ? __run_timers+0x7da/0xc70
[  431.112262]  ? trace_hardirqs_off_caller+0x310/0x310
[  431.117367]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.121593]  __run_timers+0x7e5/0xc70
[  431.125395]  ? timer_fixup_init+0x70/0x70
[  431.129541]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  431.134553]  ? zap_class+0x640/0x640
[  431.138266]  ? print_usage_bug+0xc0/0xc0
[  431.142322]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  431.147514]  ? find_held_lock+0x36/0x1c0
[  431.151574]  ? zap_class+0x640/0x640
[  431.155290]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.161639]  ? check_preemption_disabled+0x48/0x280
[  431.166659]  ? __lock_is_held+0xb5/0x140
[  431.170716]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.176252]  ? check_preemption_disabled+0x48/0x280
[  431.181264]  run_timer_softirq+0x52/0xb0
[  431.185317]  ? rcu_read_lock_sched_held+0x14f/0x180
[  431.190340]  __do_softirq+0x308/0xb7e
[  431.194134]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  431.198629]  ? lock_downgrade+0x900/0x900
[  431.202774]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  431.207874]  ? pvclock_read_flags+0x160/0x160
[  431.212365]  ? lapic_next_event+0x5a/0x90
[  431.216505]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.222048]  ? kvm_clock_read+0x18/0x30
[  431.226012]  ? kvm_sched_clock_read+0x9/0x20
[  431.230435]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.235969]  ? check_preemption_disabled+0x48/0x280
[  431.240986]  irq_exit+0x17f/0x1c0
[  431.244430]  smp_apic_timer_interrupt+0x1cb/0x760
[  431.249267]  ? smp_reschedule_interrupt+0x109/0x650
[  431.254373]  ? smp_call_function_single_interrupt+0x650/0x650
[  431.261022]  ? interrupt_entry+0xb5/0xc0
[  431.265076]  ? trace_hardirqs_off_caller+0xbb/0x310
[  431.270080]  ? trace_hardirqs_off_caller+0xbb/0x310
[  431.275093]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  431.279927]  ? trace_hardirqs_on_caller+0x310/0x310
[  431.284932]  ? trace_hardirqs_on_caller+0x310/0x310
[  431.289938]  ? task_prio+0x50/0x50
[  431.293469]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.298995]  ? check_preemption_disabled+0x48/0x280
[  431.304019]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  431.308865]  apic_timer_interrupt+0xf/0x20
[  431.313086]  </IRQ>
[  431.315317] RIP: 0010:dump_stack+0x358/0x39d
[  431.319732] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  431.338621] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  431.346338] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  431.353614] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  431.361741] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  431.369004] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  431.376268] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  431.383566]  ? dump_stack+0x34f/0x39d
[  431.387371]  ? dump_stack_print_info.cold.1+0x20/0x20
[  431.392560]  ? mark_held_locks+0x130/0x130
[  431.396785]  ? mark_held_locks+0x130/0x130
[  431.401016]  dump_header+0x27b/0xf72
[  431.404735]  ? pagefault_out_of_memory+0x197/0x197
[  431.409661]  ? __lock_acquire+0x62f/0x4c20
[  431.413894]  ? percpu_ref_get_many+0x240/0x240
[  431.418472]  ? print_usage_bug+0xc0/0xc0
[  431.422532]  ? zap_class+0x640/0x640
[  431.426246]  ? print_usage_bug+0xc0/0xc0
[  431.430315]  ? print_usage_bug+0xc0/0xc0
[  431.434383]  ? zap_class+0x640/0x640
[  431.438096]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.443632]  ? find_held_lock+0x36/0x1c0
[  431.447698]  ? mark_held_locks+0xc7/0x130
[  431.451845]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  431.456943]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  431.463010]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  431.467586]  ? trace_hardirqs_on+0xbd/0x310
[  431.471901]  ? kasan_check_read+0x11/0x20
[  431.476056]  ? ___ratelimit+0x3b4/0x672
[  431.480022]  ? trace_hardirqs_off_caller+0x310/0x310
[  431.485123]  ? trace_hardirqs_on+0x310/0x310
[  431.489524]  ? lock_downgrade+0x900/0x900
[  431.493664]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  431.498761]  ? ___ratelimit+0x3b9/0x672
[  431.502737]  ? idr_get_free+0xf70/0xf70
[  431.506709]  ? find_held_lock+0x36/0x1c0
[  431.510770]  oom_kill_process.cold.27+0x10/0x903
[  431.515521]  ? zap_class+0x640/0x640
[  431.519235]  ? check_preemption_disabled+0x48/0x280
[  431.524249]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  431.529173]  ? kasan_check_read+0x11/0x20
[  431.533318]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.538593]  ? oom_evaluate_task+0x540/0x540
[  431.543001]  ? find_held_lock+0x36/0x1c0
[  431.547063]  ? out_of_memory+0x974/0x1430
[  431.551207]  ? lock_downgrade+0x900/0x900
[  431.555342]  ? check_preemption_disabled+0x48/0x280
[  431.561355]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  431.566284]  ? kasan_check_read+0x11/0x20
[  431.570442]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.575711]  ? rcu_softirq_qs+0x20/0x20
[  431.579681]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.585222]  ? oom_evaluate_task+0x302/0x540
[  431.589629]  out_of_memory+0xa84/0x1430
[  431.593607]  ? oom_killer_disable+0x3a0/0x3a0
[  431.598098]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  431.603027]  ? __ww_mutex_check_waiters+0x160/0x160
[  431.608062]  __alloc_pages_slowpath+0x2354/0x2e10
[  431.612930]  ? warn_alloc+0x120/0x120
[  431.616725]  ? mark_held_locks+0x130/0x130
[  431.620955]  ? find_get_entry+0xaae/0x1120
[  431.625196]  ? filemap_map_pages+0x1a20/0x1a20
[  431.629773]  ? zap_class+0x640/0x640
[  431.633486]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.639012]  ? check_preemption_disabled+0x48/0x280
[  431.644017]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.649546]  ? should_fail+0x22d/0xd01
[  431.653432]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  431.659275]  ? zap_class+0x640/0x640
[  431.663005]  ? __lock_is_held+0xb5/0x140
[  431.667068]  ? mark_held_locks+0x130/0x130
[  431.671298]  ? lock_release+0xa00/0xa00
[  431.675261]  ? perf_trace_sched_process_exec+0x860/0x860
[  431.680706]  ? xa_load+0x2ba/0x460
[  431.684241]  ? lock_downgrade+0x900/0x900
[  431.688401]  ? __might_sleep+0x95/0x190
[  431.692371]  __alloc_pages_nodemask+0xa80/0xde0
[  431.697039]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  431.702050]  ? __page_cache_alloc+0x191/0x5c0
[  431.706553]  ? xa_load+0x2e1/0x460
[  431.710085]  ? xa_clear_mark+0x40/0x40
[  431.713965]  ? zap_class+0x640/0x640
[  431.717681]  ? zap_class+0x640/0x640
[  431.721390]  ? zap_class+0x640/0x640
[  431.725097]  ? __do_page_cache_readahead+0x663/0x810
[  431.730199]  ? find_held_lock+0x36/0x1c0
[  431.734263]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  431.739795]  alloc_pages_current+0x173/0x350
[  431.744201]  __page_cache_alloc+0x38c/0x5c0
[  431.748509]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  431.753428]  ? kasan_check_read+0x11/0x20
[  431.758104]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.763611]  ? generic_perform_write+0x6a0/0x6a0
[  431.768360]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.773890]  ? check_preemption_disabled+0x48/0x280
[  431.778908]  filemap_fault+0x1595/0x25f0
[  431.782975]  ? __lock_page_or_retry+0xa00/0xa00
[  431.787638]  ? mark_held_locks+0x130/0x130
[  431.791869]  ? filemap_map_pages+0xd6b/0x1a20
[  431.796354]  ? lock_downgrade+0x900/0x900
[  431.800489]  ? check_preemption_disabled+0x48/0x280
[  431.805516]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  431.810439]  ? kasan_check_read+0x11/0x20
[  431.814579]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.819846]  ? rcu_softirq_qs+0x20/0x20
[  431.823820]  ? filemap_map_pages+0xd92/0x1a20
[  431.828318]  ? find_get_entries_tag+0x1400/0x1400
[  431.833163]  ? debug_object_destroy+0x2b0/0x2b0
[  431.837827]  ? lock_pi_update_atomic+0x150/0x150
[  431.842575]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.848115]  ? lock_acquire+0x1ed/0x520
[  431.852085]  ? ext4_filemap_fault+0x7a/0xad
[  431.856409]  ? lock_release+0xa00/0xa00
[  431.861341]  ? perf_trace_sched_process_exec+0x860/0x860
[  431.866784]  ? print_usage_bug+0xc0/0xc0
[  431.870841]  ? print_usage_bug+0xc0/0xc0
[  431.874905]  ? down_read+0x8d/0x120
[  431.878527]  ? ext4_filemap_fault+0x7a/0xad
[  431.882845]  ? __down_interruptible+0x700/0x700
[  431.887515]  ext4_filemap_fault+0x82/0xad
[  431.891660]  __do_fault+0x100/0x6b0
[  431.895289]  ? pmd_devmap_trans_unstable+0x220/0x220
[  431.900389]  ? mark_held_locks+0x130/0x130
[  431.904616]  ? mark_held_locks+0x130/0x130
[  431.908844]  ? do_raw_spin_trylock+0x270/0x270
[  431.913425]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.918962]  __handle_mm_fault+0x3ea0/0x5be0
[  431.923379]  ? perf_trace_lock+0x7a0/0x7a0
[  431.928139]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  431.932986]  ? __switch_to_asm+0x34/0x70
[  431.937035]  ? __switch_to_asm+0x34/0x70
[  431.941105]  ? zap_class+0x640/0x640
[  431.944815]  ? zap_class+0x640/0x640
[  431.948524]  ? __x64_sys_futex+0x53e/0x6a0
[  431.952755]  ? find_held_lock+0x36/0x1c0
[  431.956815]  ? handle_mm_fault+0x42a/0xc70
[  431.961847]  ? lock_downgrade+0x900/0x900
[  431.965992]  ? check_preemption_disabled+0x48/0x280
[  431.971003]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  431.976096]  ? kasan_check_read+0x11/0x20
[  431.980233]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.985500]  ? rcu_softirq_qs+0x20/0x20
[  431.989466]  ? trace_hardirqs_off_caller+0x310/0x310
[  431.994565]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.000117]  ? check_preemption_disabled+0x48/0x280
[  432.005140]  handle_mm_fault+0x54f/0xc70
[  432.009207]  ? __handle_mm_fault+0x5be0/0x5be0
[  432.013783]  ? find_vma+0x34/0x190
[  432.017314]  __do_page_fault+0x5e8/0xe60
[  432.021367]  ? trace_hardirqs_off+0xb8/0x310
[  432.025784]  do_page_fault+0xf2/0x7e0
[  432.029580]  ? vmalloc_sync_all+0x30/0x30
[  432.033719]  ? error_entry+0x70/0xd0
[  432.037431]  ? trace_hardirqs_off_caller+0xbb/0x310
[  432.042439]  ? trace_hardirqs_on_caller+0xc0/0x310
[  432.047362]  ? syscall_return_slowpath+0x5e0/0x5e0
[  432.052284]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  432.057117]  ? trace_hardirqs_on_caller+0x310/0x310
[  432.062882]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  432.068331]  ? prepare_exit_to_usermode+0x291/0x3b0
[  432.073340]  ? page_fault+0x8/0x30
[  432.076876]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  432.081714]  ? page_fault+0x8/0x30
[  432.085250]  page_fault+0x1e/0x30
[  432.088697] RIP: 0033:0x45ddf3
[  432.091978] Code: Bad RIP value.
[  432.095335] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  432.100687] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  432.107947] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  432.115209] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  432.122465] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  432.129738] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  432.137019] warn_alloc_show_mem: 1 callbacks suppressed
[  432.137028] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  432.137030] Mem-Info:
[  432.137058] active_anon:54141 inactive_anon:292 isolated_anon:0
[  432.137058]  active_file:12 inactive_file:13 isolated_file:0
[  432.137058]  unevictable:0 dirty:0 writeback:0 unstable:0
[  432.137058]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  432.137058]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  432.137058]  free:13705 free_pcp:178 free_cma:0
[  432.142387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  432.149132] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  432.151518] Call Trace:
[  432.184712] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  432.194062]  dump_stack+0x244/0x39d
[  432.221726] lowmem_reserve[]: 0 2818 6321 6321
[  432.224307]  ? dump_stack_print_info.cold.1+0x20/0x20
[  432.250383] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  432.254008]  warn_alloc.cold.116+0xb7/0x1bd
[  432.259290] lowmem_reserve[]: 0 0 3503 3503
[  432.264476]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  432.291943] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  432.296252]  ? lock_downgrade+0x900/0x900
[  432.300536] lowmem_reserve[]: 0 0 0 0
[  432.305368]  ? trace_hardirqs_off+0xb8/0x310
[  432.334306] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  432.338444]  ? trace_hardirqs_off+0xb8/0x310
[  432.342212] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  432.346613]  __alloc_pages_slowpath+0x26e8/0x2e10
[  432.361115] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  432.365566]  ? warn_alloc+0x120/0x120
[  432.380770] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  432.385594]  ? print_usage_bug+0xc0/0xc0
[  432.399781] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  432.403560]  ? warn_alloc+0x120/0x120
[  432.412379] 366 total pagecache pages
[  432.416423]  ? warn_alloc+0x120/0x120
[  432.424975] 0 pages in swap cache
[  432.428752]  ? print_usage_bug+0xc0/0xc0
[  432.432526] Swap cache stats: add 0, delete 0, find 0/0
[  432.436314]  ? print_usage_bug+0xc0/0xc0
[  432.439737] Free swap  = 0kB
[  432.443784]  ? __lock_acquire+0x62f/0x4c20
[  432.449124] Total swap = 0kB
[  432.453182]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.456166] 1965979 pages RAM
[  432.460959]  ? should_fail+0x22d/0xd01
[  432.463945] 0 pages HighMem/MovableOnly
[  432.469469]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  432.472539] 342854 pages reserved
[  432.472545] 0 pages cma reserved
[  432.476412]  ? __lock_acquire+0x62f/0x4c20
[  432.480408] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  432.485440]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  432.485452]  ? __lock_acquire+0x62f/0x4c20
[  432.485467]  ? should_fail+0x22d/0xd01
[  432.488945] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  432.492336]  ? find_held_lock+0x36/0x1c0
[  432.496542] syz-fuzzer cpuset=/ mems_allowed=0
[  432.503022]  ? mark_held_locks+0x130/0x130
[  432.539216]  ? mark_held_locks+0x130/0x130
[  432.543439]  ? zap_class+0x640/0x640
[  432.547152]  ? mark_held_locks+0xc7/0x130
[  432.551294]  ? do_raw_spin_unlock+0xa7/0x330
[  432.555694]  ? zap_class+0x640/0x640
[  432.559669]  ? print_usage_bug+0xc0/0xc0
[  432.563726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.569255]  ? check_preemption_disabled+0x48/0x280
[  432.574273]  ? __lock_is_held+0xb5/0x140
[  432.578329]  __alloc_pages_nodemask+0xa80/0xde0
[  432.582987]  ? zap_class+0x640/0x640
[  432.586696]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  432.591713]  ? find_held_lock+0x36/0x1c0
[  432.595779]  ? ____cache_alloc_node+0x1c7/0x1e0
[  432.600452]  ? lock_downgrade+0x900/0x900
[  432.604686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.610222]  cache_grow_begin+0xa5/0x8c0
[  432.614278]  ? do_raw_spin_unlock+0xa7/0x330
[  432.618693]  fallback_alloc+0x204/0x2e0
[  432.622664]  ____cache_alloc_node+0x1c7/0x1e0
[  432.627161]  kmem_cache_alloc_node+0xe3/0x730
[  432.631649]  ? ipv6_get_ifaddr+0x42e/0x620
[  432.635884]  __alloc_skb+0x119/0x770
[  432.639587]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  432.644857]  ? netdev_alloc_frag+0x1f0/0x1f0
[  432.649260]  ? lock_downgrade+0x900/0x900
[  432.653405]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.659333]  ? refcount_sub_and_test_checked+0x203/0x310
[  432.664786]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  432.670225]  ? addrconf_rs_timer+0x690/0x690
[  432.674633]  ndisc_alloc_skb+0x144/0x340
[  432.678777]  ndisc_send_rs+0x331/0x6e0
[  432.682659]  addrconf_rs_timer+0x314/0x690
[  432.686890]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.691142]  call_timer_fn+0x272/0x920
[  432.695021]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.699252]  ? process_timeout+0x40/0x40
[  432.703313]  ? __run_timers+0x7da/0xc70
[  432.707283]  ? _raw_spin_unlock_irq+0x27/0x80
[  432.711766]  ? _raw_spin_unlock_irq+0x27/0x80
[  432.716256]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.720485]  ? lockdep_hardirqs_on+0x296/0x5b0
[  432.725062]  ? trace_hardirqs_on+0xbd/0x310
[  432.729373]  ? kasan_check_read+0x11/0x20
[  432.733514]  ? __run_timers+0x7da/0xc70
[  432.737481]  ? trace_hardirqs_off_caller+0x310/0x310
[  432.742576]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.746808]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.751032]  __run_timers+0x7e5/0xc70
[  432.754831]  ? timer_fixup_init+0x70/0x70
[  432.759321]  ? _raw_spin_unlock_irq+0x27/0x80
[  432.763806]  ? _raw_spin_unlock_irq+0x27/0x80
[  432.768296]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  432.772876]  ? trace_hardirqs_on+0xbd/0x310
[  432.777188]  ? kasan_check_read+0x11/0x20
[  432.781330]  ? finish_task_switch+0x1f4/0x910
[  432.785839]  ? trace_hardirqs_off_caller+0x310/0x310
[  432.790927]  ? compat_start_thread+0x80/0x80
[  432.795361]  ? pvclock_read_flags+0x160/0x160
[  432.799846]  ? __switch_to_asm+0x34/0x70
[  432.803899]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.809426]  ? check_preemption_disabled+0x48/0x280
[  432.814443]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  432.819974]  ? rcu_pm_notify+0xc0/0xc0
[  432.823853]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.829381]  ? check_preemption_disabled+0x48/0x280
[  432.834392]  run_timer_softirq+0x52/0xb0
[  432.838445]  ? rcu_read_lock_sched_held+0x14f/0x180
[  432.843455]  __do_softirq+0x308/0xb7e
[  432.847249]  ? trace_hardirqs_on_caller+0xc0/0x310
[  432.852261]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  432.857652]  ? trace_hardirqs_on+0x310/0x310
[  432.862050]  ? schedule+0x108/0x460
[  432.865681]  ? trace_hardirqs_off+0xb8/0x310
[  432.870083]  ? smpboot_thread_fn+0x68b/0xa00
[  432.874513]  ? trace_hardirqs_on+0x310/0x310
[  432.879710]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.885242]  ? check_preemption_disabled+0x48/0x280
[  432.890249]  ? takeover_tasklets+0xa90/0xa90
[  432.894651]  run_ksoftirqd+0x5e/0x100
[  432.898446]  smpboot_thread_fn+0x68b/0xa00
[  432.902676]  ? sort_range+0x30/0x30
[  432.906297]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  432.911407]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.916930]  ? __kthread_parkme+0xfb/0x1a0
[  432.921154]  ? sort_range+0x30/0x30
[  432.924772]  kthread+0x35a/0x440
[  432.928131]  ? kthread_stop+0x900/0x900
[  432.932110]  ret_from_fork+0x3a/0x50
[  432.935829] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  432.935892] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  432.942744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  432.942749] Call Trace:
[  432.942754]  <IRQ>
[  432.942770]  dump_stack+0x244/0x39d
[  432.942788]  ? dump_stack_print_info.cold.1+0x20/0x20
[  432.949313] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  432.959184]  warn_alloc.cold.116+0xb7/0x1bd
[  432.961731] ksoftirqd/0 cpuset=/ mems_allowed=0
[  432.963872]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  432.996721]  ? lock_downgrade+0x900/0x900
[  433.000868]  ? trace_hardirqs_off+0xb8/0x310
[  433.005271]  ? trace_hardirqs_off+0xb8/0x310
[  433.009680]  __alloc_pages_slowpath+0x26e8/0x2e10
[  433.014532]  ? warn_alloc+0x120/0x120
[  433.018327]  ? print_usage_bug+0xc0/0xc0
[  433.022379]  ? warn_alloc+0x120/0x120
[  433.026175]  ? warn_alloc+0x120/0x120
[  433.029969]  ? print_usage_bug+0xc0/0xc0
[  433.034026]  ? print_usage_bug+0xc0/0xc0
[  433.038088]  ? __lock_acquire+0x62f/0x4c20
[  433.042322]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.047852]  ? should_fail+0x22d/0xd01
[  433.051743]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  433.056839]  ? __lock_acquire+0x62f/0x4c20
[  433.062047]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  433.067167]  ? __lock_acquire+0x62f/0x4c20
[  433.071392]  ? should_fail+0x22d/0xd01
[  433.075269]  ? find_held_lock+0x36/0x1c0
[  433.079331]  ? mark_held_locks+0x130/0x130
[  433.083572]  ? mark_held_locks+0x130/0x130
[  433.087803]  ? zap_class+0x640/0x640
[  433.091512]  ? zap_class+0x640/0x640
[  433.095221]  ? print_usage_bug+0xc0/0xc0
[  433.099275]  ? do_raw_spin_unlock+0xa7/0x330
[  433.103674]  ? zap_class+0x640/0x640
[  433.107379]  ? print_usage_bug+0xc0/0xc0
[  433.111430]  ? wq_watchdog_touch+0x9c/0xfe
[  433.115659]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.121193]  ? check_preemption_disabled+0x48/0x280
[  433.126227]  ? __lock_is_held+0xb5/0x140
[  433.130290]  __alloc_pages_nodemask+0xa80/0xde0
[  433.134969]  ? zap_class+0x640/0x640
[  433.138690]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  433.143708]  ? find_held_lock+0x36/0x1c0
[  433.147780]  ? ____cache_alloc_node+0x1c7/0x1e0
[  433.152441]  ? lock_downgrade+0x900/0x900
[  433.156609]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.162419]  cache_grow_begin+0xa5/0x8c0
[  433.166472]  ? do_raw_spin_unlock+0xa7/0x330
[  433.170877]  fallback_alloc+0x204/0x2e0
[  433.174865]  ____cache_alloc_node+0x1c7/0x1e0
[  433.179366]  kmem_cache_alloc_node+0xe3/0x730
[  433.183855]  ? ipv6_get_ifaddr+0x42e/0x620
[  433.188099]  __alloc_skb+0x119/0x770
[  433.191803]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.197084]  ? netdev_alloc_frag+0x1f0/0x1f0
[  433.201483]  ? lock_downgrade+0x900/0x900
[  433.205628]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.211209]  ? refcount_sub_and_test_checked+0x203/0x310
[  433.216764]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  433.222208]  ? addrconf_rs_timer+0x690/0x690
[  433.226621]  ndisc_alloc_skb+0x144/0x340
[  433.230671]  ndisc_send_rs+0x331/0x6e0
[  433.234552]  addrconf_rs_timer+0x314/0x690
[  433.238809]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.243047]  call_timer_fn+0x272/0x920
[  433.246954]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.251184]  ? process_timeout+0x40/0x40
[  433.255240]  ? mark_held_locks+0xc7/0x130
[  433.259898]  ? _raw_spin_unlock_irq+0x27/0x80
[  433.264387]  ? _raw_spin_unlock_irq+0x27/0x80
[  433.268874]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.273121]  ? lockdep_hardirqs_on+0x296/0x5b0
[  433.277702]  ? trace_hardirqs_on+0xbd/0x310
[  433.282014]  ? kasan_check_read+0x11/0x20
[  433.286152]  ? __run_timers+0x7da/0xc70
[  433.290121]  ? trace_hardirqs_off_caller+0x310/0x310
[  433.295224]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.299456]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.303683]  __run_timers+0x7e5/0xc70
[  433.307482]  ? timer_fixup_init+0x70/0x70
[  433.311623]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  433.316635]  ? zap_class+0x640/0x640
[  433.320342]  ? print_usage_bug+0xc0/0xc0
[  433.324400]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  433.329597]  ? find_held_lock+0x36/0x1c0
[  433.333659]  ? zap_class+0x640/0x640
[  433.337365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.342893]  ? check_preemption_disabled+0x48/0x280
[  433.348012]  ? __lock_is_held+0xb5/0x140
[  433.352071]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.358079]  ? check_preemption_disabled+0x48/0x280
[  433.363095]  run_timer_softirq+0x52/0xb0
[  433.367149]  ? rcu_read_lock_sched_held+0x14f/0x180
[  433.372156]  __do_softirq+0x308/0xb7e
[  433.375954]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  433.380462]  ? lock_downgrade+0x900/0x900
[  433.384605]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  433.389705]  ? pvclock_read_flags+0x160/0x160
[  433.394209]  ? lapic_next_event+0x5a/0x90
[  433.398355]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.403885]  ? kvm_clock_read+0x18/0x30
[  433.407850]  ? kvm_sched_clock_read+0x9/0x20
[  433.412257]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.417785]  ? check_preemption_disabled+0x48/0x280
[  433.422802]  irq_exit+0x17f/0x1c0
[  433.426250]  smp_apic_timer_interrupt+0x1cb/0x760
[  433.431089]  ? smp_reschedule_interrupt+0x109/0x650
[  433.436103]  ? smp_call_function_single_interrupt+0x650/0x650
[  433.441980]  ? interrupt_entry+0xb5/0xc0
[  433.446047]  ? trace_hardirqs_off_caller+0xbb/0x310
[  433.451071]  ? trace_hardirqs_off_caller+0xbb/0x310
[  433.456090]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.461668]  ? trace_hardirqs_on_caller+0x310/0x310
[  433.466674]  ? trace_hardirqs_on_caller+0x310/0x310
[  433.471712]  ? task_prio+0x50/0x50
[  433.475248]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.480777]  ? check_preemption_disabled+0x48/0x280
[  433.485791]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.490633]  apic_timer_interrupt+0xf/0x20
[  433.494851]  </IRQ>
[  433.497083] RIP: 0010:dump_stack+0x358/0x39d
[  433.501484] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  433.520387] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  433.528084] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  433.535340] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  433.542597] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  433.549852] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  433.557105] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  433.564647]  ? dump_stack+0x34f/0x39d
[  433.568445]  ? dump_stack_print_info.cold.1+0x20/0x20
[  433.573626]  ? mark_held_locks+0x130/0x130
[  433.577852]  ? mark_held_locks+0x130/0x130
[  433.582081]  dump_header+0x27b/0xf72
[  433.585795]  ? pagefault_out_of_memory+0x197/0x197
[  433.590720]  ? __lock_acquire+0x62f/0x4c20
[  433.594952]  ? percpu_ref_get_many+0x240/0x240
[  433.599528]  ? print_usage_bug+0xc0/0xc0
[  433.603589]  ? zap_class+0x640/0x640
[  433.607292]  ? print_usage_bug+0xc0/0xc0
[  433.611344]  ? print_usage_bug+0xc0/0xc0
[  433.615397]  ? zap_class+0x640/0x640
[  433.619109]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.624637]  ? find_held_lock+0x36/0x1c0
[  433.628696]  ? mark_held_locks+0xc7/0x130
[  433.632838]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  433.637931]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  433.643027]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  433.647604]  ? trace_hardirqs_on+0xbd/0x310
[  433.651911]  ? kasan_check_read+0x11/0x20
[  433.656056]  ? ___ratelimit+0x3b4/0x672
[  433.660475]  ? trace_hardirqs_off_caller+0x310/0x310
[  433.665574]  ? trace_hardirqs_on+0x310/0x310
[  433.669978]  ? lock_downgrade+0x900/0x900
[  433.674136]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  433.679231]  ? ___ratelimit+0x3b9/0x672
[  433.683202]  ? idr_get_free+0xf70/0xf70
[  433.687171]  ? find_held_lock+0x36/0x1c0
[  433.691232]  oom_kill_process.cold.27+0x10/0x903
[  433.695979]  ? zap_class+0x640/0x640
[  433.699683]  ? check_preemption_disabled+0x48/0x280
[  433.704691]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  433.709609]  ? kasan_check_read+0x11/0x20
[  433.713746]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.719014]  ? oom_evaluate_task+0x540/0x540
[  433.723428]  ? find_held_lock+0x36/0x1c0
[  433.727485]  ? out_of_memory+0x974/0x1430
[  433.731629]  ? lock_downgrade+0x900/0x900
[  433.735772]  ? check_preemption_disabled+0x48/0x280
[  433.740783]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  433.745702]  ? kasan_check_read+0x11/0x20
[  433.749842]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.755104]  ? rcu_softirq_qs+0x20/0x20
[  433.760290]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.765817]  ? oom_evaluate_task+0x302/0x540
[  433.770217]  out_of_memory+0xa84/0x1430
[  433.774188]  ? oom_killer_disable+0x3a0/0x3a0
[  433.778668]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  433.783593]  ? __ww_mutex_check_waiters+0x160/0x160
[  433.788611]  __alloc_pages_slowpath+0x2354/0x2e10
[  433.793499]  ? warn_alloc+0x120/0x120
[  433.797308]  ? mark_held_locks+0x130/0x130
[  433.801541]  ? find_get_entry+0xaae/0x1120
[  433.805776]  ? filemap_map_pages+0x1a20/0x1a20
[  433.810360]  ? zap_class+0x640/0x640
[  433.814071]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.819598]  ? check_preemption_disabled+0x48/0x280
[  433.824607]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.830133]  ? should_fail+0x22d/0xd01
[  433.834040]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  433.839132]  ? zap_class+0x640/0x640
[  433.842856]  ? __lock_is_held+0xb5/0x140
[  433.846914]  ? mark_held_locks+0x130/0x130
[  433.851142]  ? lock_release+0xa00/0xa00
[  433.855105]  ? perf_trace_sched_process_exec+0x860/0x860
[  433.861541]  ? xa_load+0x2ba/0x460
[  433.865080]  ? lock_downgrade+0x900/0x900
[  433.869225]  ? __might_sleep+0x95/0x190
[  433.873199]  __alloc_pages_nodemask+0xa80/0xde0
[  433.877867]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  433.882876]  ? __page_cache_alloc+0x191/0x5c0
[  433.887365]  ? xa_load+0x2e1/0x460
[  433.890900]  ? xa_clear_mark+0x40/0x40
[  433.894779]  ? zap_class+0x640/0x640
[  433.898493]  ? zap_class+0x640/0x640
[  433.902214]  ? zap_class+0x640/0x640
[  433.905918]  ? __do_page_cache_readahead+0x663/0x810
[  433.911017]  ? find_held_lock+0x36/0x1c0
[  433.915087]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  433.920625]  alloc_pages_current+0x173/0x350
[  433.925033]  __page_cache_alloc+0x38c/0x5c0
[  433.929824]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  433.934751]  ? kasan_check_read+0x11/0x20
[  433.938890]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.944164]  ? generic_perform_write+0x6a0/0x6a0
[  433.948931]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.954473]  ? check_preemption_disabled+0x48/0x280
[  433.960424]  filemap_fault+0x1595/0x25f0
[  433.964492]  ? __lock_page_or_retry+0xa00/0xa00
[  433.969153]  ? mark_held_locks+0x130/0x130
[  433.973388]  ? filemap_map_pages+0xd6b/0x1a20
[  433.977873]  ? lock_downgrade+0x900/0x900
[  433.982013]  ? check_preemption_disabled+0x48/0x280
[  433.987031]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  433.991960]  ? kasan_check_read+0x11/0x20
[  433.996100]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.001387]  ? rcu_softirq_qs+0x20/0x20
[  434.005365]  ? filemap_map_pages+0xd92/0x1a20
[  434.009862]  ? find_get_entries_tag+0x1400/0x1400
[  434.014701]  ? debug_object_destroy+0x2b0/0x2b0
[  434.019376]  ? lock_pi_update_atomic+0x150/0x150
[  434.024118]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.029654]  ? lock_acquire+0x1ed/0x520
[  434.033617]  ? ext4_filemap_fault+0x7a/0xad
[  434.037945]  ? lock_release+0xa00/0xa00
[  434.041910]  ? perf_trace_sched_process_exec+0x860/0x860
[  434.047352]  ? print_usage_bug+0xc0/0xc0
[  434.051420]  ? print_usage_bug+0xc0/0xc0
[  434.055481]  ? down_read+0x8d/0x120
[  434.059875]  ? ext4_filemap_fault+0x7a/0xad
[  434.064190]  ? __down_interruptible+0x700/0x700
[  434.068876]  ext4_filemap_fault+0x82/0xad
[  434.073029]  __do_fault+0x100/0x6b0
[  434.076649]  ? pmd_devmap_trans_unstable+0x220/0x220
[  434.081748]  ? mark_held_locks+0x130/0x130
[  434.085974]  ? mark_held_locks+0x130/0x130
[  434.090198]  ? do_raw_spin_trylock+0x270/0x270
[  434.094776]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.100312]  __handle_mm_fault+0x3ea0/0x5be0
[  434.104715]  ? perf_trace_lock+0x7a0/0x7a0
[  434.108954]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  434.113790]  ? __switch_to_asm+0x34/0x70
[  434.117845]  ? __switch_to_asm+0x34/0x70
[  434.121912]  ? zap_class+0x640/0x640
[  434.125626]  ? zap_class+0x640/0x640
[  434.129332]  ? __x64_sys_futex+0x53e/0x6a0
[  434.133560]  ? find_held_lock+0x36/0x1c0
[  434.137618]  ? handle_mm_fault+0x42a/0xc70
[  434.141845]  ? lock_downgrade+0x900/0x900
[  434.145984]  ? check_preemption_disabled+0x48/0x280
[  434.151003]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  434.155930]  ? kasan_check_read+0x11/0x20
[  434.161102]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.166370]  ? rcu_softirq_qs+0x20/0x20
[  434.170336]  ? trace_hardirqs_off_caller+0x310/0x310
[  434.175436]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.180968]  ? check_preemption_disabled+0x48/0x280
[  434.185980]  handle_mm_fault+0x54f/0xc70
[  434.190036]  ? __handle_mm_fault+0x5be0/0x5be0
[  434.194611]  ? find_vma+0x34/0x190
[  434.198152]  __do_page_fault+0x5e8/0xe60
[  434.202204]  ? trace_hardirqs_off+0xb8/0x310
[  434.206621]  do_page_fault+0xf2/0x7e0
[  434.210412]  ? vmalloc_sync_all+0x30/0x30
[  434.214553]  ? error_entry+0x70/0xd0
[  434.218262]  ? trace_hardirqs_off_caller+0xbb/0x310
[  434.223272]  ? trace_hardirqs_on_caller+0xc0/0x310
[  434.228192]  ? syscall_return_slowpath+0x5e0/0x5e0
[  434.233114]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.237951]  ? trace_hardirqs_on_caller+0x310/0x310
[  434.242959]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  434.248406]  ? prepare_exit_to_usermode+0x291/0x3b0
[  434.253415]  ? page_fault+0x8/0x30
[  434.256950]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.262591]  ? page_fault+0x8/0x30
[  434.266123]  page_fault+0x1e/0x30
[  434.269570] RIP: 0033:0x45ddf3
[  434.272777] Code: Bad RIP value.
[  434.276124] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  434.281473] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  434.288745] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  434.296022] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  434.303293] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  434.310551] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  434.317832] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  434.317836] warn_alloc_show_mem: 1 callbacks suppressed
[  434.317842] Mem-Info:
[  434.324580] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  434.329937] active_anon:54141 inactive_anon:292 isolated_anon:0
[  434.329937]  active_file:12 inactive_file:13 isolated_file:0
[  434.329937]  unevictable:0 dirty:0 writeback:0 unstable:0
[  434.329937]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  434.329937]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  434.329937]  free:13705 free_pcp:178 free_cma:0
[  434.332305] Call Trace:
[  434.341669] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  434.374854]  dump_stack+0x244/0x39d
[  434.377408] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  434.405069]  ? dump_stack_print_info.cold.1+0x20/0x20
[  434.408666] lowmem_reserve[]: 0 2818 6321 6321
[  434.434778]  warn_alloc.cold.116+0xb7/0x1bd
[  434.439927] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  434.444492]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  434.448786] lowmem_reserve[]: 0 0 3503 3503
[  434.476672]  ? lock_downgrade+0x900/0x900
[  434.481480] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  434.485790]  ? trace_hardirqs_off+0xb8/0x310
[  434.489904] lowmem_reserve[]: 0 0 0 0
[  434.518878]  ? trace_hardirqs_off+0xb8/0x310
[  434.523248] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  434.527041]  __alloc_pages_slowpath+0x26e8/0x2e10
[  434.531415] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  434.544945]  ? warn_alloc+0x120/0x120
[  434.549739] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  434.565257]  ? print_usage_bug+0xc0/0xc0
[  434.569030] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  434.583230]  ? warn_alloc+0x120/0x120
[  434.587264] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  434.596080]  ? warn_alloc+0x120/0x120
[  434.599850] 366 total pagecache pages
[  434.608424]  ? print_usage_bug+0xc0/0xc0
[  434.612198] 0 pages in swap cache
[  434.615973]  ? print_usage_bug+0xc0/0xc0
[  434.620013] Swap cache stats: add 0, delete 0, find 0/0
[  434.623445]  ? __lock_acquire+0x62f/0x4c20
[  434.627477] Free swap  = 0kB
[  434.632846]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.637049] Total swap = 0kB
[  434.640066]  ? should_fail+0x22d/0xd01
[  434.645569] 1965979 pages RAM
[  434.648571]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  434.652427] 0 pages HighMem/MovableOnly
[  434.655603]  ? __lock_acquire+0x62f/0x4c20
[  434.661403] 342854 pages reserved
[  434.661410] 0 pages cma reserved
[  434.665372]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  434.669625] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  434.673010]  ? __lock_acquire+0x62f/0x4c20
[  434.673022]  ? should_fail+0x22d/0xd01
[  434.673037]  ? find_held_lock+0x36/0x1c0
[  434.676421] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  434.681469]  ? mark_held_locks+0x130/0x130
[  434.687925] syz-fuzzer cpuset=/ mems_allowed=0
[  434.692145]  ? mark_held_locks+0x130/0x130
[  434.723241]  ? zap_class+0x640/0x640
[  434.726947]  ? zap_class+0x640/0x640
[  434.730748]  ? print_usage_bug+0xc0/0xc0
[  434.734801]  ? do_raw_spin_unlock+0xa7/0x330
[  434.739199]  ? zap_class+0x640/0x640
[  434.742898]  ? print_usage_bug+0xc0/0xc0
[  434.746950]  ? wq_watchdog_touch+0x9c/0xfe
[  434.751186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.756713]  ? check_preemption_disabled+0x48/0x280
[  434.762077]  ? __lock_is_held+0xb5/0x140
[  434.766135]  __alloc_pages_nodemask+0xa80/0xde0
[  434.770817]  ? zap_class+0x640/0x640
[  434.774531]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  434.779550]  ? find_held_lock+0x36/0x1c0
[  434.783607]  ? ____cache_alloc_node+0x1c7/0x1e0
[  434.788266]  ? lock_downgrade+0x900/0x900
[  434.792411]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.797945]  cache_grow_begin+0xa5/0x8c0
[  434.802010]  ? do_raw_spin_unlock+0xa7/0x330
[  434.806425]  fallback_alloc+0x204/0x2e0
[  434.810392]  ____cache_alloc_node+0x1c7/0x1e0
[  434.814879]  kmem_cache_alloc_node+0xe3/0x730
[  434.819375]  ? ipv6_get_ifaddr+0x42e/0x620
[  434.823607]  __alloc_skb+0x119/0x770
[  434.827310]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.832579]  ? netdev_alloc_frag+0x1f0/0x1f0
[  434.836985]  ? lock_downgrade+0x900/0x900
[  434.841132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.846664]  ? refcount_sub_and_test_checked+0x203/0x310
[  434.852107]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  434.857877]  ? addrconf_rs_timer+0x690/0x690
[  434.862288]  ndisc_alloc_skb+0x144/0x340
[  434.866362]  ndisc_send_rs+0x331/0x6e0
[  434.870249]  addrconf_rs_timer+0x314/0x690
[  434.874483]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  434.878728]  call_timer_fn+0x272/0x920
[  434.882603]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  434.886833]  ? process_timeout+0x40/0x40
[  434.890889]  ? __run_timers+0x7da/0xc70
[  434.894873]  ? _raw_spin_unlock_irq+0x27/0x80
[  434.899363]  ? _raw_spin_unlock_irq+0x27/0x80
[  434.903950]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  434.908194]  ? lockdep_hardirqs_on+0x296/0x5b0
[  434.912777]  ? trace_hardirqs_on+0xbd/0x310
[  434.917089]  ? kasan_check_read+0x11/0x20
[  434.921230]  ? __run_timers+0x7da/0xc70
[  434.925194]  ? trace_hardirqs_off_caller+0x310/0x310
[  434.930294]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  434.934528]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  434.938748]  __run_timers+0x7e5/0xc70
[  434.942547]  ? timer_fixup_init+0x70/0x70
[  434.946687]  ? _raw_spin_unlock_irq+0x27/0x80
[  434.951168]  ? _raw_spin_unlock_irq+0x27/0x80
[  434.955653]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  434.960561]  ? trace_hardirqs_on+0xbd/0x310
[  434.964867]  ? kasan_check_read+0x11/0x20
[  434.969004]  ? finish_task_switch+0x1f4/0x910
[  434.973492]  ? trace_hardirqs_off_caller+0x310/0x310
[  434.978585]  ? compat_start_thread+0x80/0x80
[  434.983012]  ? pvclock_read_flags+0x160/0x160
[  434.987518]  ? __switch_to_asm+0x34/0x70
[  434.991569]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.997116]  ? check_preemption_disabled+0x48/0x280
[  435.002156]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  435.007685]  ? rcu_pm_notify+0xc0/0xc0
[  435.011565]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.017094]  ? check_preemption_disabled+0x48/0x280
[  435.022101]  run_timer_softirq+0x52/0xb0
[  435.026152]  ? rcu_read_lock_sched_held+0x14f/0x180
[  435.031166]  __do_softirq+0x308/0xb7e
[  435.035002]  ? trace_hardirqs_on_caller+0xc0/0x310
[  435.039918]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  435.045138]  ? trace_hardirqs_on+0x310/0x310
[  435.049556]  ? schedule+0x108/0x460
[  435.053188]  ? trace_hardirqs_off+0xb8/0x310
[  435.057853]  ? smpboot_thread_fn+0x68b/0xa00
[  435.062249]  ? trace_hardirqs_on+0x310/0x310
[  435.066650]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.072182]  ? check_preemption_disabled+0x48/0x280
[  435.077190]  ? takeover_tasklets+0xa90/0xa90
[  435.081594]  run_ksoftirqd+0x5e/0x100
[  435.085389]  smpboot_thread_fn+0x68b/0xa00
[  435.089617]  ? sort_range+0x30/0x30
[  435.093235]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  435.098329]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.103859]  ? __kthread_parkme+0xfb/0x1a0
[  435.108091]  ? sort_range+0x30/0x30
[  435.111711]  kthread+0x35a/0x440
[  435.115069]  ? kthread_stop+0x900/0x900
[  435.119037]  ret_from_fork+0x3a/0x50
[  435.122759] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  435.122841] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  435.129676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  435.129683] Call Trace:
[  435.136219] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  435.145484]  <IRQ>
[  435.148044] ksoftirqd/0 cpuset=/ mems_allowed=0
[  435.158811]  dump_stack+0x244/0x39d
[  435.169196]  ? dump_stack_print_info.cold.1+0x20/0x20
[  435.174388]  warn_alloc.cold.116+0xb7/0x1bd
[  435.178701]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  435.183552]  ? lock_downgrade+0x900/0x900
[  435.187697]  ? trace_hardirqs_off+0xb8/0x310
[  435.192111]  ? trace_hardirqs_off+0xb8/0x310
[  435.196520]  __alloc_pages_slowpath+0x26e8/0x2e10
[  435.201376]  ? warn_alloc+0x120/0x120
[  435.205172]  ? print_usage_bug+0xc0/0xc0
[  435.209230]  ? warn_alloc+0x120/0x120
[  435.213026]  ? warn_alloc+0x120/0x120
[  435.216824]  ? print_usage_bug+0xc0/0xc0
[  435.220885]  ? print_usage_bug+0xc0/0xc0
[  435.224948]  ? __lock_acquire+0x62f/0x4c20
[  435.229624]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.235155]  ? should_fail+0x22d/0xd01
[  435.239039]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  435.244138]  ? __lock_acquire+0x62f/0x4c20
[  435.248370]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  435.253465]  ? __lock_acquire+0x62f/0x4c20
[  435.258204]  ? should_fail+0x22d/0xd01
[  435.262083]  ? find_held_lock+0x36/0x1c0
[  435.266139]  ? mark_held_locks+0x130/0x130
[  435.270370]  ? mark_held_locks+0x130/0x130
[  435.274596]  ? zap_class+0x640/0x640
[  435.278334]  ? zap_class+0x640/0x640
[  435.282041]  ? print_usage_bug+0xc0/0xc0
[  435.286090]  ? do_raw_spin_unlock+0xa7/0x330
[  435.290580]  ? zap_class+0x640/0x640
[  435.294282]  ? print_usage_bug+0xc0/0xc0
[  435.298342]  ? wq_watchdog_touch+0x9c/0xfe
[  435.302574]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.308192]  ? check_preemption_disabled+0x48/0x280
[  435.313203]  ? __lock_is_held+0xb5/0x140
[  435.317260]  __alloc_pages_nodemask+0xa80/0xde0
[  435.321922]  ? zap_class+0x640/0x640
[  435.325641]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  435.330660]  ? find_held_lock+0x36/0x1c0
[  435.334731]  ? ____cache_alloc_node+0x1c7/0x1e0
[  435.339394]  ? lock_downgrade+0x900/0x900
[  435.343544]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.349189]  cache_grow_begin+0xa5/0x8c0
[  435.353237]  ? do_raw_spin_unlock+0xa7/0x330
[  435.358589]  fallback_alloc+0x204/0x2e0
[  435.362562]  ____cache_alloc_node+0x1c7/0x1e0
[  435.367050]  kmem_cache_alloc_node+0xe3/0x730
[  435.371536]  ? ipv6_get_ifaddr+0x42e/0x620
[  435.375771]  __alloc_skb+0x119/0x770
[  435.379474]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.384742]  ? netdev_alloc_frag+0x1f0/0x1f0
[  435.389144]  ? lock_downgrade+0x900/0x900
[  435.393292]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.398819]  ? refcount_sub_and_test_checked+0x203/0x310
[  435.404277]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  435.409722]  ? addrconf_rs_timer+0x690/0x690
[  435.414138]  ndisc_alloc_skb+0x144/0x340
[  435.418194]  ndisc_send_rs+0x331/0x6e0
[  435.422082]  addrconf_rs_timer+0x314/0x690
[  435.426312]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.430548]  call_timer_fn+0x272/0x920
[  435.434427]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.438656]  ? process_timeout+0x40/0x40
[  435.442721]  ? mark_held_locks+0xc7/0x130
[  435.446873]  ? _raw_spin_unlock_irq+0x27/0x80
[  435.451360]  ? _raw_spin_unlock_irq+0x27/0x80
[  435.455843]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.461014]  ? lockdep_hardirqs_on+0x296/0x5b0
[  435.465589]  ? trace_hardirqs_on+0xbd/0x310
[  435.469899]  ? kasan_check_read+0x11/0x20
[  435.474044]  ? __run_timers+0x7da/0xc70
[  435.478009]  ? trace_hardirqs_off_caller+0x310/0x310
[  435.483111]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.487346]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.491590]  __run_timers+0x7e5/0xc70
[  435.495394]  ? timer_fixup_init+0x70/0x70
[  435.499534]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  435.504545]  ? zap_class+0x640/0x640
[  435.508261]  ? print_usage_bug+0xc0/0xc0
[  435.512320]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  435.517508]  ? find_held_lock+0x36/0x1c0
[  435.521565]  ? zap_class+0x640/0x640
[  435.525276]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.530807]  ? check_preemption_disabled+0x48/0x280
[  435.535825]  ? __lock_is_held+0xb5/0x140
[  435.539880]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.545413]  ? check_preemption_disabled+0x48/0x280
[  435.550430]  run_timer_softirq+0x52/0xb0
[  435.554493]  ? rcu_read_lock_sched_held+0x14f/0x180
[  435.560491]  __do_softirq+0x308/0xb7e
[  435.564289]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  435.568772]  ? lock_downgrade+0x900/0x900
[  435.572912]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  435.578027]  ? pvclock_read_flags+0x160/0x160
[  435.582515]  ? lapic_next_event+0x5a/0x90
[  435.586655]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.592189]  ? kvm_clock_read+0x18/0x30
[  435.596171]  ? kvm_sched_clock_read+0x9/0x20
[  435.600578]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.606111]  ? check_preemption_disabled+0x48/0x280
[  435.611130]  irq_exit+0x17f/0x1c0
[  435.614577]  smp_apic_timer_interrupt+0x1cb/0x760
[  435.619405]  ? smp_reschedule_interrupt+0x109/0x650
[  435.624421]  ? smp_call_function_single_interrupt+0x650/0x650
[  435.630300]  ? interrupt_entry+0xb5/0xc0
[  435.634354]  ? trace_hardirqs_off_caller+0xbb/0x310
[  435.639360]  ? trace_hardirqs_off_caller+0xbb/0x310
[  435.644372]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.649205]  ? trace_hardirqs_on_caller+0x310/0x310
[  435.654210]  ? trace_hardirqs_on_caller+0x310/0x310
[  435.659958]  ? task_prio+0x50/0x50
[  435.663489]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.669015]  ? check_preemption_disabled+0x48/0x280
[  435.674027]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.678866]  apic_timer_interrupt+0xf/0x20
[  435.683089]  </IRQ>
[  435.685326] RIP: 0010:dump_stack+0x358/0x39d
[  435.689725] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  435.708616] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  435.716312] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  435.723568] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  435.730824] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  435.738169] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  435.745432] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  435.752701]  ? dump_stack+0x34f/0x39d
[  435.756504]  ? dump_stack_print_info.cold.1+0x20/0x20
[  435.762721]  ? mark_held_locks+0x130/0x130
[  435.766960]  ? mark_held_locks+0x130/0x130
[  435.771275]  dump_header+0x27b/0xf72
[  435.774988]  ? pagefault_out_of_memory+0x197/0x197
[  435.779924]  ? __lock_acquire+0x62f/0x4c20
[  435.784246]  ? percpu_ref_get_many+0x240/0x240
[  435.788824]  ? print_usage_bug+0xc0/0xc0
[  435.792876]  ? zap_class+0x640/0x640
[  435.796591]  ? print_usage_bug+0xc0/0xc0
[  435.800640]  ? print_usage_bug+0xc0/0xc0
[  435.804693]  ? zap_class+0x640/0x640
[  435.808402]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.813938]  ? find_held_lock+0x36/0x1c0
[  435.818082]  ? mark_held_locks+0xc7/0x130
[  435.822218]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  435.827313]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  435.832407]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  435.836990]  ? trace_hardirqs_on+0xbd/0x310
[  435.841302]  ? kasan_check_read+0x11/0x20
[  435.845460]  ? ___ratelimit+0x3b4/0x672
[  435.849431]  ? trace_hardirqs_off_caller+0x310/0x310
[  435.854534]  ? trace_hardirqs_on+0x310/0x310
[  435.859863]  ? lock_downgrade+0x900/0x900
[  435.864020]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  435.869114]  ? ___ratelimit+0x3b9/0x672
[  435.873084]  ? idr_get_free+0xf70/0xf70
[  435.877059]  ? find_held_lock+0x36/0x1c0
[  435.881132]  oom_kill_process.cold.27+0x10/0x903
[  435.885879]  ? zap_class+0x640/0x640
[  435.889590]  ? check_preemption_disabled+0x48/0x280
[  435.894602]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  435.899526]  ? kasan_check_read+0x11/0x20
[  435.903662]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.908930]  ? oom_evaluate_task+0x540/0x540
[  435.913333]  ? find_held_lock+0x36/0x1c0
[  435.917392]  ? out_of_memory+0x974/0x1430
[  435.921533]  ? lock_downgrade+0x900/0x900
[  435.925671]  ? check_preemption_disabled+0x48/0x280
[  435.931222]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  435.936152]  ? kasan_check_read+0x11/0x20
[  435.940294]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.945562]  ? rcu_softirq_qs+0x20/0x20
[  435.949532]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.955058]  ? oom_evaluate_task+0x302/0x540
[  435.959990]  out_of_memory+0xa84/0x1430
[  435.963965]  ? oom_killer_disable+0x3a0/0x3a0
[  435.968451]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  435.973374]  ? __ww_mutex_check_waiters+0x160/0x160
[  435.978387]  __alloc_pages_slowpath+0x2354/0x2e10
[  435.983257]  ? warn_alloc+0x120/0x120
[  435.987057]  ? mark_held_locks+0x130/0x130
[  435.991282]  ? find_get_entry+0xaae/0x1120
[  435.995515]  ? filemap_map_pages+0x1a20/0x1a20
[  436.000092]  ? zap_class+0x640/0x640
[  436.003808]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.009342]  ? check_preemption_disabled+0x48/0x280
[  436.014348]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.019879]  ? should_fail+0x22d/0xd01
[  436.023773]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  436.028870]  ? zap_class+0x640/0x640
[  436.032613]  ? __lock_is_held+0xb5/0x140
[  436.036676]  ? mark_held_locks+0x130/0x130
[  436.040909]  ? lock_release+0xa00/0xa00
[  436.044876]  ? perf_trace_sched_process_exec+0x860/0x860
[  436.050322]  ? xa_load+0x2ba/0x460
[  436.053851]  ? lock_downgrade+0x900/0x900
[  436.058810]  ? __might_sleep+0x95/0x190
[  436.062783]  __alloc_pages_nodemask+0xa80/0xde0
[  436.067449]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  436.072457]  ? __page_cache_alloc+0x191/0x5c0
[  436.076958]  ? xa_load+0x2e1/0x460
[  436.080490]  ? xa_clear_mark+0x40/0x40
[  436.084383]  ? zap_class+0x640/0x640
[  436.088127]  ? zap_class+0x640/0x640
[  436.091832]  ? zap_class+0x640/0x640
[  436.095542]  ? __do_page_cache_readahead+0x663/0x810
[  436.100645]  ? find_held_lock+0x36/0x1c0
[  436.104715]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  436.110247]  alloc_pages_current+0x173/0x350
[  436.114662]  __page_cache_alloc+0x38c/0x5c0
[  436.118988]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  436.123908]  ? kasan_check_read+0x11/0x20
[  436.128049]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.133318]  ? generic_perform_write+0x6a0/0x6a0
[  436.138067]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.143602]  ? check_preemption_disabled+0x48/0x280
[  436.148616]  filemap_fault+0x1595/0x25f0
[  436.152681]  ? __lock_page_or_retry+0xa00/0xa00
[  436.157619]  ? mark_held_locks+0x130/0x130
[  436.161852]  ? filemap_map_pages+0xd6b/0x1a20
[  436.166446]  ? lock_downgrade+0x900/0x900
[  436.170587]  ? check_preemption_disabled+0x48/0x280
[  436.175599]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  436.180517]  ? kasan_check_read+0x11/0x20
[  436.184655]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.189927]  ? rcu_softirq_qs+0x20/0x20
[  436.193914]  ? filemap_map_pages+0xd92/0x1a20
[  436.198417]  ? find_get_entries_tag+0x1400/0x1400
[  436.203256]  ? debug_object_destroy+0x2b0/0x2b0
[  436.207924]  ? lock_pi_update_atomic+0x150/0x150
[  436.212681]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.218222]  ? lock_acquire+0x1ed/0x520
[  436.222188]  ? ext4_filemap_fault+0x7a/0xad
[  436.226505]  ? lock_release+0xa00/0xa00
[  436.230468]  ? perf_trace_sched_process_exec+0x860/0x860
[  436.235915]  ? print_usage_bug+0xc0/0xc0
[  436.239969]  ? print_usage_bug+0xc0/0xc0
[  436.244049]  ? down_read+0x8d/0x120
[  436.247665]  ? ext4_filemap_fault+0x7a/0xad
[  436.251975]  ? __down_interruptible+0x700/0x700
[  436.256636]  ext4_filemap_fault+0x82/0xad
[  436.261582]  __do_fault+0x100/0x6b0
[  436.265221]  ? pmd_devmap_trans_unstable+0x220/0x220
[  436.270315]  ? mark_held_locks+0x130/0x130
[  436.274557]  ? mark_held_locks+0x130/0x130
[  436.278787]  ? do_raw_spin_trylock+0x270/0x270
[  436.283362]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.288907]  __handle_mm_fault+0x3ea0/0x5be0
[  436.293308]  ? perf_trace_lock+0x7a0/0x7a0
[  436.297553]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  436.302409]  ? __switch_to_asm+0x34/0x70
[  436.306455]  ? __switch_to_asm+0x34/0x70
[  436.310516]  ? zap_class+0x640/0x640
[  436.314222]  ? zap_class+0x640/0x640
[  436.317929]  ? __x64_sys_futex+0x53e/0x6a0
[  436.322162]  ? find_held_lock+0x36/0x1c0
[  436.326309]  ? handle_mm_fault+0x42a/0xc70
[  436.330535]  ? lock_downgrade+0x900/0x900
[  436.334672]  ? check_preemption_disabled+0x48/0x280
[  436.339683]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  436.344601]  ? kasan_check_read+0x11/0x20
[  436.348751]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.354017]  ? rcu_softirq_qs+0x20/0x20
[  436.358323]  ? trace_hardirqs_off_caller+0x310/0x310
[  436.363420]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.368954]  ? check_preemption_disabled+0x48/0x280
[  436.373969]  handle_mm_fault+0x54f/0xc70
[  436.378031]  ? __handle_mm_fault+0x5be0/0x5be0
[  436.382607]  ? find_vma+0x34/0x190
[  436.386152]  __do_page_fault+0x5e8/0xe60
[  436.390202]  ? trace_hardirqs_off+0xb8/0x310
[  436.394607]  do_page_fault+0xf2/0x7e0
[  436.398398]  ? vmalloc_sync_all+0x30/0x30
[  436.402536]  ? error_entry+0x70/0xd0
[  436.406241]  ? trace_hardirqs_off_caller+0xbb/0x310
[  436.411248]  ? trace_hardirqs_on_caller+0xc0/0x310
[  436.416166]  ? syscall_return_slowpath+0x5e0/0x5e0
[  436.421086]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.425924]  ? trace_hardirqs_on_caller+0x310/0x310
[  436.430931]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  436.436380]  ? prepare_exit_to_usermode+0x291/0x3b0
[  436.441387]  ? page_fault+0x8/0x30
[  436.444921]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.449753]  ? page_fault+0x8/0x30
[  436.453290]  page_fault+0x1e/0x30
[  436.456732] RIP: 0033:0x45ddf3
[  436.460617] Code: Bad RIP value.
[  436.463968] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  436.469318] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  436.476575] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  436.483833] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  436.491099] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  436.498361] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  436.505643] warn_alloc_show_mem: 1 callbacks suppressed
[  436.505652] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  436.505654] Mem-Info:
[  436.505683] active_anon:54141 inactive_anon:292 isolated_anon:0
[  436.505683]  active_file:12 inactive_file:13 isolated_file:0
[  436.505683]  unevictable:0 dirty:0 writeback:0 unstable:0
[  436.505683]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  436.505683]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  436.505683]  free:13705 free_pcp:178 free_cma:0
[  436.511012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  436.511018] Call Trace:
[  436.517764] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  436.520157]  dump_stack+0x244/0x39d
[  436.553089] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  436.562719]  ? dump_stack_print_info.cold.1+0x20/0x20
[  436.565269] lowmem_reserve[]: 0 2818 6321 6321
[  436.592942]  warn_alloc.cold.116+0xb7/0x1bd
[  436.596534] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  436.622630]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  436.627783] lowmem_reserve[]: 0 0 3503 3503
[  436.632355]  ? lock_downgrade+0x900/0x900
[  436.636641] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  436.664506]  ? trace_hardirqs_off+0xb8/0x310
[  436.669310] lowmem_reserve[]: 0 0 0 0
[  436.673638]  ? trace_hardirqs_off+0xb8/0x310
[  436.677748] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  436.706706]  __alloc_pages_slowpath+0x26e8/0x2e10
[  436.711076] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  436.714894]  ? warn_alloc+0x120/0x120
[  436.719244] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  436.732752]  ? print_usage_bug+0xc0/0xc0
[  436.737579] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  436.752813]  ? warn_alloc+0x120/0x120
[  436.756584] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  436.771050]  ? warn_alloc+0x120/0x120
[  436.775078] 366 total pagecache pages
[  436.783895]  ? print_usage_bug+0xc0/0xc0
[  436.787671] 0 pages in swap cache
[  436.796223]  ? print_usage_bug+0xc0/0xc0
[  436.799994] Swap cache stats: add 0, delete 0, find 0/0
[  436.803775]  ? __lock_acquire+0x62f/0x4c20
[  436.807803] Free swap  = 0kB
[  436.811242]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.815270] Total swap = 0kB
[  436.820618]  ? should_fail+0x22d/0xd01
[  436.824821] 1965979 pages RAM
[  436.827830]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  436.833338] 0 pages HighMem/MovableOnly
[  436.836352]  ? __lock_acquire+0x62f/0x4c20
[  436.840209] 342854 pages reserved
[  436.843301]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  436.848378] 0 pages cma reserved
[  436.852337]  ? __lock_acquire+0x62f/0x4c20
[  436.856598] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  436.860230]  ? should_fail+0x22d/0xd01
[  436.860245]  ? find_held_lock+0x36/0x1c0
[  436.865403] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  436.868677]  ? mark_held_locks+0x130/0x130
[  436.872873] syz-fuzzer cpuset=/ mems_allowed=0
[  436.879370]  ? mark_held_locks+0x130/0x130
[  436.910502]  ? zap_class+0x640/0x640
[  436.914216]  ? mark_held_locks+0xc7/0x130
[  436.918353]  ? do_raw_spin_unlock+0xa7/0x330
[  436.922755]  ? zap_class+0x640/0x640
[  436.926474]  ? print_usage_bug+0xc0/0xc0
[  436.930534]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.936069]  ? check_preemption_disabled+0x48/0x280
[  436.941083]  ? __lock_is_held+0xb5/0x140
[  436.945144]  __alloc_pages_nodemask+0xa80/0xde0
[  436.949813]  ? zap_class+0x640/0x640
[  436.953535]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  436.958885]  ? find_held_lock+0x36/0x1c0
[  436.964340]  ? ____cache_alloc_node+0x1c7/0x1e0
[  436.969001]  ? lock_downgrade+0x900/0x900
[  436.973145]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.978676]  cache_grow_begin+0xa5/0x8c0
[  436.982731]  ? do_raw_spin_unlock+0xa7/0x330
[  436.987155]  fallback_alloc+0x204/0x2e0
[  436.991124]  ____cache_alloc_node+0x1c7/0x1e0
[  436.995613]  kmem_cache_alloc_node+0xe3/0x730
[  437.000096]  ? ipv6_get_ifaddr+0x42e/0x620
[  437.004327]  __alloc_skb+0x119/0x770
[  437.008041]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  437.013311]  ? netdev_alloc_frag+0x1f0/0x1f0
[  437.017706]  ? lock_downgrade+0x900/0x900
[  437.021859]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.027385]  ? refcount_sub_and_test_checked+0x203/0x310
[  437.032829]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  437.038273]  ? addrconf_rs_timer+0x690/0x690
[  437.042678]  ndisc_alloc_skb+0x144/0x340
[  437.046731]  ndisc_send_rs+0x331/0x6e0
[  437.050615]  addrconf_rs_timer+0x314/0x690
[  437.054854]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.059390]  call_timer_fn+0x272/0x920
[  437.063266]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.067490]  ? process_timeout+0x40/0x40
[  437.071546]  ? __run_timers+0x7da/0xc70
[  437.075518]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.080002]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.084487]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.088714]  ? lockdep_hardirqs_on+0x296/0x5b0
[  437.093286]  ? trace_hardirqs_on+0xbd/0x310
[  437.097596]  ? kasan_check_read+0x11/0x20
[  437.101739]  ? __run_timers+0x7da/0xc70
[  437.105703]  ? trace_hardirqs_off_caller+0x310/0x310
[  437.110793]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.115026]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.119250]  __run_timers+0x7e5/0xc70
[  437.123047]  ? timer_fixup_init+0x70/0x70
[  437.127185]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.131747]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.136232]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  437.140809]  ? trace_hardirqs_on+0xbd/0x310
[  437.145135]  ? kasan_check_read+0x11/0x20
[  437.149275]  ? finish_task_switch+0x1f4/0x910
[  437.153762]  ? trace_hardirqs_off_caller+0x310/0x310
[  437.159123]  ? compat_start_thread+0x80/0x80
[  437.163546]  ? pvclock_read_flags+0x160/0x160
[  437.168027]  ? __switch_to_asm+0x34/0x70
[  437.172081]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.177615]  ? check_preemption_disabled+0x48/0x280
[  437.182626]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  437.188155]  ? rcu_pm_notify+0xc0/0xc0
[  437.192036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.197566]  ? check_preemption_disabled+0x48/0x280
[  437.202577]  run_timer_softirq+0x52/0xb0
[  437.206636]  ? rcu_read_lock_sched_held+0x14f/0x180
[  437.211646]  __do_softirq+0x308/0xb7e
[  437.215443]  ? trace_hardirqs_on_caller+0xc0/0x310
[  437.220365]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  437.225462]  ? trace_hardirqs_on+0x310/0x310
[  437.229870]  ? schedule+0x108/0x460
[  437.233500]  ? trace_hardirqs_off+0xb8/0x310
[  437.237901]  ? smpboot_thread_fn+0x68b/0xa00
[  437.242300]  ? trace_hardirqs_on+0x310/0x310
[  437.246700]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.252226]  ? check_preemption_disabled+0x48/0x280
[  437.257553]  ? takeover_tasklets+0xa90/0xa90
[  437.261948]  run_ksoftirqd+0x5e/0x100
[  437.265738]  smpboot_thread_fn+0x68b/0xa00
[  437.269967]  ? sort_range+0x30/0x30
[  437.273588]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  437.278685]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.284214]  ? __kthread_parkme+0xfb/0x1a0
[  437.288443]  ? sort_range+0x30/0x30
[  437.292061]  kthread+0x35a/0x440
[  437.295421]  ? kthread_stop+0x900/0x900
[  437.299389]  ret_from_fork+0x3a/0x50
[  437.303113] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  437.303178] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  437.310026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  437.310033] Call Trace:
[  437.316576] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  437.325838]  <IRQ>
[  437.328404] ksoftirqd/0 cpuset=/ mems_allowed=0
[  437.338699]  dump_stack+0x244/0x39d
[  437.349080]  ? dump_stack_print_info.cold.1+0x20/0x20
[  437.354269]  warn_alloc.cold.116+0xb7/0x1bd
[  437.359346]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  437.364188]  ? lock_downgrade+0x900/0x900
[  437.368341]  ? trace_hardirqs_off+0xb8/0x310
[  437.372749]  ? trace_hardirqs_off+0xb8/0x310
[  437.377257]  __alloc_pages_slowpath+0x26e8/0x2e10
[  437.382112]  ? warn_alloc+0x120/0x120
[  437.385911]  ? print_usage_bug+0xc0/0xc0
[  437.389968]  ? warn_alloc+0x120/0x120
[  437.393768]  ? warn_alloc+0x120/0x120
[  437.397583]  ? print_usage_bug+0xc0/0xc0
[  437.401633]  ? kvm_clock_read+0x18/0x30
[  437.405601]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  437.410632]  ? print_usage_bug+0xc0/0xc0
[  437.414687]  ? __lock_acquire+0x62f/0x4c20
[  437.418919]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.424446]  ? should_fail+0x22d/0xd01
[  437.428327]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  437.433607]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  437.438716]  ? __lock_acquire+0x62f/0x4c20
[  437.442948]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  437.448042]  ? __lock_acquire+0x62f/0x4c20
[  437.452268]  ? should_fail+0x22d/0xd01
[  437.456148]  ? rcu_irq_exit+0x1a2/0x390
[  437.461072]  ? mark_held_locks+0x130/0x130
[  437.465305]  ? mark_held_locks+0x130/0x130
[  437.469627]  ? mark_held_locks+0xc7/0x130
[  437.473775]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  437.478799]  ? zap_class+0x640/0x640
[  437.482527]  ? print_usage_bug+0xc0/0xc0
[  437.486603]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.492130]  ? check_preemption_disabled+0x48/0x280
[  437.497144]  ? __lock_is_held+0xb5/0x140
[  437.501199]  __alloc_pages_nodemask+0xa80/0xde0
[  437.505855]  ? zap_class+0x640/0x640
[  437.509564]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  437.514592]  ? find_held_lock+0x36/0x1c0
[  437.518655]  ? ____cache_alloc_node+0x1c7/0x1e0
[  437.523322]  ? lock_downgrade+0x900/0x900
[  437.527468]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.532998]  cache_grow_begin+0xa5/0x8c0
[  437.537164]  ? do_raw_spin_unlock+0xa7/0x330
[  437.541574]  fallback_alloc+0x204/0x2e0
[  437.545546]  ____cache_alloc_node+0x1c7/0x1e0
[  437.550038]  kmem_cache_alloc_node+0xe3/0x730
[  437.554523]  ? ipv6_get_ifaddr+0x42e/0x620
[  437.559092]  __alloc_skb+0x119/0x770
[  437.562806]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  437.568078]  ? netdev_alloc_frag+0x1f0/0x1f0
[  437.572474]  ? lock_downgrade+0x900/0x900
[  437.576622]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.582165]  ? refcount_sub_and_test_checked+0x203/0x310
[  437.587609]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  437.593049]  ? addrconf_rs_timer+0x690/0x690
[  437.597459]  ndisc_alloc_skb+0x144/0x340
[  437.601537]  ndisc_send_rs+0x331/0x6e0
[  437.605420]  addrconf_rs_timer+0x314/0x690
[  437.609651]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.613887]  call_timer_fn+0x272/0x920
[  437.617789]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.622030]  ? process_timeout+0x40/0x40
[  437.626089]  ? mark_held_locks+0xc7/0x130
[  437.630230]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.634713]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.639196]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.643421]  ? lockdep_hardirqs_on+0x296/0x5b0
[  437.647993]  ? trace_hardirqs_on+0xbd/0x310
[  437.652308]  ? kasan_check_read+0x11/0x20
[  437.656444]  ? __run_timers+0x7da/0xc70
[  437.661248]  ? trace_hardirqs_off_caller+0x310/0x310
[  437.666346]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.670579]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.674804]  __run_timers+0x7e5/0xc70
[  437.678609]  ? timer_fixup_init+0x70/0x70
[  437.682747]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  437.687763]  ? zap_class+0x640/0x640
[  437.691479]  ? print_usage_bug+0xc0/0xc0
[  437.695533]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  437.700721]  ? find_held_lock+0x36/0x1c0
[  437.704790]  ? zap_class+0x640/0x640
[  437.708498]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.714024]  ? check_preemption_disabled+0x48/0x280
[  437.719040]  ? __lock_is_held+0xb5/0x140
[  437.723097]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.728626]  ? check_preemption_disabled+0x48/0x280
[  437.733637]  run_timer_softirq+0x52/0xb0
[  437.737687]  ? rcu_read_lock_sched_held+0x14f/0x180
[  437.742691]  __do_softirq+0x308/0xb7e
[  437.746484]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  437.750983]  ? lock_downgrade+0x900/0x900
[  437.755132]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  437.761338]  ? pvclock_read_flags+0x160/0x160
[  437.765829]  ? lapic_next_event+0x5a/0x90
[  437.769990]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.775523]  ? kvm_clock_read+0x18/0x30
[  437.779488]  ? kvm_sched_clock_read+0x9/0x20
[  437.783892]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.789419]  ? check_preemption_disabled+0x48/0x280
[  437.794425]  irq_exit+0x17f/0x1c0
[  437.797867]  smp_apic_timer_interrupt+0x1cb/0x760
[  437.802713]  ? smp_reschedule_interrupt+0x109/0x650
[  437.807723]  ? smp_call_function_single_interrupt+0x650/0x650
[  437.813600]  ? interrupt_entry+0xb5/0xc0
[  437.817665]  ? trace_hardirqs_off_caller+0xbb/0x310
[  437.822669]  ? trace_hardirqs_off_caller+0xbb/0x310
[  437.827678]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.832516]  ? trace_hardirqs_on_caller+0x310/0x310
[  437.837523]  ? trace_hardirqs_on_caller+0x310/0x310
[  437.842533]  ? task_prio+0x50/0x50
[  437.846077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.851608]  ? check_preemption_disabled+0x48/0x280
[  437.856622]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.862418]  apic_timer_interrupt+0xf/0x20
[  437.866639]  </IRQ>
[  437.868869] RIP: 0010:dump_stack+0x358/0x39d
[  437.873273] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  437.892181] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  437.899901] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  437.907162] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  437.914420] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  437.921678] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  437.929473] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  437.936782]  ? dump_stack+0x34f/0x39d
[  437.940597]  ? dump_stack_print_info.cold.1+0x20/0x20
[  437.945790]  ? mark_held_locks+0x130/0x130
[  437.950016]  ? mark_held_locks+0x130/0x130
[  437.954257]  dump_header+0x27b/0xf72
[  437.958790]  ? pagefault_out_of_memory+0x197/0x197
[  437.963718]  ? __lock_acquire+0x62f/0x4c20
[  437.967946]  ? percpu_ref_get_many+0x240/0x240
[  437.972526]  ? print_usage_bug+0xc0/0xc0
[  437.976581]  ? zap_class+0x640/0x640
[  437.980291]  ? print_usage_bug+0xc0/0xc0
[  437.984427]  ? print_usage_bug+0xc0/0xc0
[  437.988654]  ? zap_class+0x640/0x640
[  437.992368]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.997915]  ? find_held_lock+0x36/0x1c0
[  438.001974]  ? mark_held_locks+0xc7/0x130
[  438.006112]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  438.011207]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  438.016305]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  438.020885]  ? trace_hardirqs_on+0xbd/0x310
[  438.025198]  ? kasan_check_read+0x11/0x20
[  438.029337]  ? ___ratelimit+0x3b4/0x672
[  438.033307]  ? trace_hardirqs_off_caller+0x310/0x310
[  438.038404]  ? trace_hardirqs_on+0x310/0x310
[  438.042808]  ? lock_downgrade+0x900/0x900
[  438.046949]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  438.052045]  ? ___ratelimit+0x3b9/0x672
[  438.056017]  ? idr_get_free+0xf70/0xf70
[  438.060346]  ? find_held_lock+0x36/0x1c0
[  438.064410]  oom_kill_process.cold.27+0x10/0x903
[  438.069162]  ? zap_class+0x640/0x640
[  438.072867]  ? check_preemption_disabled+0x48/0x280
[  438.077877]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.082820]  ? kasan_check_read+0x11/0x20
[  438.086960]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.092230]  ? oom_evaluate_task+0x540/0x540
[  438.096638]  ? find_held_lock+0x36/0x1c0
[  438.100701]  ? out_of_memory+0x974/0x1430
[  438.104848]  ? lock_downgrade+0x900/0x900
[  438.108990]  ? check_preemption_disabled+0x48/0x280
[  438.114002]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.118921]  ? kasan_check_read+0x11/0x20
[  438.123061]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.128333]  ? rcu_softirq_qs+0x20/0x20
[  438.132306]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.137847]  ? oom_evaluate_task+0x302/0x540
[  438.142249]  out_of_memory+0xa84/0x1430
[  438.146226]  ? oom_killer_disable+0x3a0/0x3a0
[  438.150716]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  438.155642]  ? __ww_mutex_check_waiters+0x160/0x160
[  438.161050]  __alloc_pages_slowpath+0x2354/0x2e10
[  438.165914]  ? warn_alloc+0x120/0x120
[  438.169706]  ? mark_held_locks+0x130/0x130
[  438.173947]  ? find_get_entry+0xaae/0x1120
[  438.178194]  ? filemap_map_pages+0x1a20/0x1a20
[  438.182785]  ? zap_class+0x640/0x640
[  438.186498]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.192120]  ? check_preemption_disabled+0x48/0x280
[  438.197128]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.202674]  ? should_fail+0x22d/0xd01
[  438.206559]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  438.211659]  ? zap_class+0x640/0x640
[  438.215385]  ? __lock_is_held+0xb5/0x140
[  438.219445]  ? mark_held_locks+0x130/0x130
[  438.223673]  ? lock_release+0xa00/0xa00
[  438.227643]  ? perf_trace_sched_process_exec+0x860/0x860
[  438.233084]  ? xa_load+0x2ba/0x460
[  438.236619]  ? lock_downgrade+0x900/0x900
[  438.240769]  ? __might_sleep+0x95/0x190
[  438.244752]  __alloc_pages_nodemask+0xa80/0xde0
[  438.249511]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  438.254520]  ? __page_cache_alloc+0x191/0x5c0
[  438.259960]  ? xa_load+0x2e1/0x460
[  438.263497]  ? xa_clear_mark+0x40/0x40
[  438.267379]  ? zap_class+0x640/0x640
[  438.271101]  ? zap_class+0x640/0x640
[  438.274818]  ? zap_class+0x640/0x640
[  438.278532]  ? __do_page_cache_readahead+0x663/0x810
[  438.283728]  ? find_held_lock+0x36/0x1c0
[  438.287793]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  438.293330]  alloc_pages_current+0x173/0x350
[  438.297736]  __page_cache_alloc+0x38c/0x5c0
[  438.302064]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.306994]  ? kasan_check_read+0x11/0x20
[  438.311132]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.316405]  ? generic_perform_write+0x6a0/0x6a0
[  438.321153]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.326683]  ? check_preemption_disabled+0x48/0x280
[  438.331700]  filemap_fault+0x1595/0x25f0
[  438.335773]  ? __lock_page_or_retry+0xa00/0xa00
[  438.340435]  ? mark_held_locks+0x130/0x130
[  438.344672]  ? filemap_map_pages+0xd6b/0x1a20
[  438.349158]  ? lock_downgrade+0x900/0x900
[  438.353296]  ? check_preemption_disabled+0x48/0x280
[  438.358779]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.363705]  ? kasan_check_read+0x11/0x20
[  438.367865]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.373135]  ? rcu_softirq_qs+0x20/0x20
[  438.377114]  ? filemap_map_pages+0xd92/0x1a20
[  438.381611]  ? find_get_entries_tag+0x1400/0x1400
[  438.386455]  ? debug_object_destroy+0x2b0/0x2b0
[  438.391119]  ? lock_pi_update_atomic+0x150/0x150
[  438.395870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.401411]  ? lock_acquire+0x1ed/0x520
[  438.405395]  ? ext4_filemap_fault+0x7a/0xad
[  438.409716]  ? lock_release+0xa00/0xa00
[  438.413687]  ? perf_trace_sched_process_exec+0x860/0x860
[  438.419129]  ? print_usage_bug+0xc0/0xc0
[  438.423188]  ? print_usage_bug+0xc0/0xc0
[  438.427253]  ? down_read+0x8d/0x120
[  438.430871]  ? ext4_filemap_fault+0x7a/0xad
[  438.435193]  ? __down_interruptible+0x700/0x700
[  438.439862]  ext4_filemap_fault+0x82/0xad
[  438.444007]  __do_fault+0x100/0x6b0
[  438.447631]  ? pmd_devmap_trans_unstable+0x220/0x220
[  438.453212]  ? mark_held_locks+0x130/0x130
[  438.458387]  ? mark_held_locks+0x130/0x130
[  438.462614]  ? do_raw_spin_trylock+0x270/0x270
[  438.467195]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.472734]  __handle_mm_fault+0x3ea0/0x5be0
[  438.477133]  ? perf_trace_lock+0x7a0/0x7a0
[  438.481369]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  438.486210]  ? __switch_to_asm+0x34/0x70
[  438.490267]  ? __switch_to_asm+0x34/0x70
[  438.494329]  ? zap_class+0x640/0x640
[  438.498036]  ? zap_class+0x640/0x640
[  438.501748]  ? __x64_sys_futex+0x53e/0x6a0
[  438.505979]  ? find_held_lock+0x36/0x1c0
[  438.510038]  ? handle_mm_fault+0x42a/0xc70
[  438.514270]  ? lock_downgrade+0x900/0x900
[  438.518414]  ? check_preemption_disabled+0x48/0x280
[  438.523420]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.528352]  ? kasan_check_read+0x11/0x20
[  438.532491]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.537761]  ? rcu_softirq_qs+0x20/0x20
[  438.541736]  ? trace_hardirqs_off_caller+0x310/0x310
[  438.546831]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.552362]  ? check_preemption_disabled+0x48/0x280
[  438.558220]  handle_mm_fault+0x54f/0xc70
[  438.562278]  ? __handle_mm_fault+0x5be0/0x5be0
[  438.566857]  ? find_vma+0x34/0x190
[  438.570391]  __do_page_fault+0x5e8/0xe60
[  438.574442]  ? trace_hardirqs_off+0xb8/0x310
[  438.578848]  do_page_fault+0xf2/0x7e0
[  438.582646]  ? vmalloc_sync_all+0x30/0x30
[  438.586789]  ? error_entry+0x70/0xd0
[  438.590496]  ? trace_hardirqs_off_caller+0xbb/0x310
[  438.595505]  ? trace_hardirqs_on_caller+0xc0/0x310
[  438.600431]  ? syscall_return_slowpath+0x5e0/0x5e0
[  438.605352]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  438.610190]  ? trace_hardirqs_on_caller+0x310/0x310
[  438.615199]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  438.620642]  ? prepare_exit_to_usermode+0x291/0x3b0
[  438.625654]  ? page_fault+0x8/0x30
[  438.629192]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  438.634027]  ? page_fault+0x8/0x30
[  438.637560]  page_fault+0x1e/0x30
[  438.641006] RIP: 0033:0x45ddf3
[  438.644203] Code: Bad RIP value.
[  438.647559] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  438.652913] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  438.660973] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  438.668242] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  438.675502] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  438.682763] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  438.690052] warn_alloc_show_mem: 1 callbacks suppressed
[  438.690060] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  438.690062] Mem-Info:
[  438.690090] active_anon:54141 inactive_anon:292 isolated_anon:0
[  438.690090]  active_file:12 inactive_file:13 isolated_file:0
[  438.690090]  unevictable:0 dirty:0 writeback:0 unstable:0
[  438.690090]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  438.690090]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  438.690090]  free:13705 free_pcp:178 free_cma:0
[  438.695420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  438.702170] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  438.704556] Call Trace:
[  438.737493] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  438.746836]  dump_stack+0x244/0x39d
[  438.775470] lowmem_reserve[]: 0 2818 6321 6321
[  438.778055]  ? dump_stack_print_info.cold.1+0x20/0x20
[  438.804131] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  438.807762]  warn_alloc.cold.116+0xb7/0x1bd
[  438.812305] lowmem_reserve[]: 0 0 3503 3503
[  438.817492]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  438.844958] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  438.849273]  ? lock_downgrade+0x900/0x900
[  438.853570] lowmem_reserve[]: 0 0 0 0
[  438.858775]  ? trace_hardirqs_off+0xb8/0x310
[  438.887723] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  438.891878]  ? trace_hardirqs_off+0xb8/0x310
[  438.895649] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  438.900050]  __alloc_pages_slowpath+0x26e8/0x2e10
[  438.913553] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  438.917965]  ? warn_alloc+0x120/0x120
[  438.933175] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  438.937991]  ? print_usage_bug+0xc0/0xc0
[  438.952176] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  438.952184] 366 total pagecache pages
[  438.955967]  ? warn_alloc+0x120/0x120
[  438.965728] 0 pages in swap cache
[  438.969767]  ? warn_alloc+0x120/0x120
[  438.978312] Swap cache stats: add 0, delete 0, find 0/0
[  438.982091]  ? print_usage_bug+0xc0/0xc0
[  438.985860] Free swap  = 0kB
[  438.989296]  ? print_usage_bug+0xc0/0xc0
[  438.993061] Total swap = 0kB
[  438.993068] 1965979 pages RAM
[  438.998412]  ? __lock_acquire+0x62f/0x4c20
[  439.002442] 0 pages HighMem/MovableOnly
[  439.005446]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.009472] 342854 pages reserved
[  439.012474]  ? should_fail+0x22d/0xd01
[  439.015547] 0 pages cma reserved
[  439.019765]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  439.023773] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  439.029243]  ? __lock_acquire+0x62f/0x4c20
[  439.032739] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  439.036533]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  439.039869] syz-fuzzer cpuset=/ mems_allowed=0
[  439.044951]  ? __lock_acquire+0x62f/0x4c20
[  439.044965]  ? should_fail+0x22d/0xd01
[  439.083817]  ? find_held_lock+0x36/0x1c0
[  439.087875]  ? mark_held_locks+0x130/0x130
[  439.092110]  ? mark_held_locks+0x130/0x130
[  439.096337]  ? zap_class+0x640/0x640
[  439.100051]  ? mark_held_locks+0xc7/0x130
[  439.104208]  ? do_raw_spin_unlock+0xa7/0x330
[  439.108613]  ? zap_class+0x640/0x640
[  439.112323]  ? print_usage_bug+0xc0/0xc0
[  439.116395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.121946]  ? check_preemption_disabled+0x48/0x280
[  439.126959]  ? __lock_is_held+0xb5/0x140
[  439.131016]  __alloc_pages_nodemask+0xa80/0xde0
[  439.135679]  ? zap_class+0x640/0x640
[  439.139401]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  439.144417]  ? find_held_lock+0x36/0x1c0
[  439.148477]  ? ____cache_alloc_node+0x1c7/0x1e0
[  439.153134]  ? lock_downgrade+0x900/0x900
[  439.157564]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.163098]  cache_grow_begin+0xa5/0x8c0
[  439.167147]  ? do_raw_spin_unlock+0xa7/0x330
[  439.171551]  fallback_alloc+0x204/0x2e0
[  439.175520]  ____cache_alloc_node+0x1c7/0x1e0
[  439.180012]  kmem_cache_alloc_node+0xe3/0x730
[  439.184498]  ? ipv6_get_ifaddr+0x42e/0x620
[  439.188740]  __alloc_skb+0x119/0x770
[  439.192446]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.197719]  ? netdev_alloc_frag+0x1f0/0x1f0
[  439.202122]  ? lock_downgrade+0x900/0x900
[  439.206268]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.211817]  ? refcount_sub_and_test_checked+0x203/0x310
[  439.217275]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  439.222716]  ? addrconf_rs_timer+0x690/0x690
[  439.227126]  ndisc_alloc_skb+0x144/0x340
[  439.231202]  ndisc_send_rs+0x331/0x6e0
[  439.235086]  addrconf_rs_timer+0x314/0x690
[  439.239325]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.243556]  call_timer_fn+0x272/0x920
[  439.247431]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.251671]  ? process_timeout+0x40/0x40
[  439.255744]  ? __run_timers+0x7da/0xc70
[  439.260020]  ? _raw_spin_unlock_irq+0x27/0x80
[  439.264501]  ? _raw_spin_unlock_irq+0x27/0x80
[  439.268994]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.273218]  ? lockdep_hardirqs_on+0x296/0x5b0
[  439.277787]  ? trace_hardirqs_on+0xbd/0x310
[  439.282097]  ? kasan_check_read+0x11/0x20
[  439.286230]  ? __run_timers+0x7da/0xc70
[  439.290201]  ? trace_hardirqs_off_caller+0x310/0x310
[  439.295303]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.299536]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.303764]  __run_timers+0x7e5/0xc70
[  439.307564]  ? timer_fixup_init+0x70/0x70
[  439.311713]  ? _raw_spin_unlock_irq+0x27/0x80
[  439.316199]  ? _raw_spin_unlock_irq+0x27/0x80
[  439.320699]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  439.325362]  ? trace_hardirqs_on+0xbd/0x310
[  439.329685]  ? kasan_check_read+0x11/0x20
[  439.333827]  ? finish_task_switch+0x1f4/0x910
[  439.338310]  ? trace_hardirqs_off_caller+0x310/0x310
[  439.343402]  ? compat_start_thread+0x80/0x80
[  439.347818]  ? pvclock_read_flags+0x160/0x160
[  439.352301]  ? __switch_to_asm+0x34/0x70
[  439.356370]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.362185]  ? check_preemption_disabled+0x48/0x280
[  439.367202]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  439.372739]  ? rcu_pm_notify+0xc0/0xc0
[  439.376621]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.382153]  ? check_preemption_disabled+0x48/0x280
[  439.387172]  run_timer_softirq+0x52/0xb0
[  439.391223]  ? rcu_read_lock_sched_held+0x14f/0x180
[  439.396232]  __do_softirq+0x308/0xb7e
[  439.400030]  ? trace_hardirqs_on_caller+0xc0/0x310
[  439.404955]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  439.410050]  ? trace_hardirqs_on+0x310/0x310
[  439.414456]  ? schedule+0x108/0x460
[  439.418085]  ? trace_hardirqs_off+0xb8/0x310
[  439.422486]  ? smpboot_thread_fn+0x68b/0xa00
[  439.426889]  ? trace_hardirqs_on+0x310/0x310
[  439.431292]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.436819]  ? check_preemption_disabled+0x48/0x280
[  439.441829]  ? takeover_tasklets+0xa90/0xa90
[  439.446230]  run_ksoftirqd+0x5e/0x100
[  439.450025]  smpboot_thread_fn+0x68b/0xa00
[  439.454258]  ? sort_range+0x30/0x30
[  439.458320]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  439.463420]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.468948]  ? __kthread_parkme+0xfb/0x1a0
[  439.473174]  ? sort_range+0x30/0x30
[  439.476791]  kthread+0x35a/0x440
[  439.480151]  ? kthread_stop+0x900/0x900
[  439.484122]  ret_from_fork+0x3a/0x50
[  439.487843] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  439.487908] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  439.494760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  439.494765] Call Trace:
[  439.494771]  <IRQ>
[  439.494787]  dump_stack+0x244/0x39d
[  439.494805]  ? dump_stack_print_info.cold.1+0x20/0x20
[  439.501363] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  439.510727]  warn_alloc.cold.116+0xb7/0x1bd
[  439.513273] ksoftirqd/0 cpuset=/ mems_allowed=0
[  439.515408]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  439.548404]  ? lock_downgrade+0x900/0x900
[  439.552552]  ? trace_hardirqs_off+0xb8/0x310
[  439.557891]  ? trace_hardirqs_off+0xb8/0x310
[  439.562298]  __alloc_pages_slowpath+0x26e8/0x2e10
[  439.567164]  ? warn_alloc+0x120/0x120
[  439.570965]  ? print_usage_bug+0xc0/0xc0
[  439.575018]  ? warn_alloc+0x120/0x120
[  439.578810]  ? warn_alloc+0x120/0x120
[  439.582617]  ? print_usage_bug+0xc0/0xc0
[  439.586675]  ? kvm_clock_read+0x18/0x30
[  439.590644]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  439.595669]  ? print_usage_bug+0xc0/0xc0
[  439.599743]  ? __lock_acquire+0x62f/0x4c20
[  439.603976]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.609508]  ? should_fail+0x22d/0xd01
[  439.613386]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.618663]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  439.623757]  ? __lock_acquire+0x62f/0x4c20
[  439.628001]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  439.633095]  ? __lock_acquire+0x62f/0x4c20
[  439.637319]  ? should_fail+0x22d/0xd01
[  439.641196]  ? rcu_irq_exit+0x1a2/0x390
[  439.645186]  ? mark_held_locks+0x130/0x130
[  439.649417]  ? mark_held_locks+0x130/0x130
[  439.653657]  ? mark_held_locks+0xc7/0x130
[  439.658575]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  439.663586]  ? zap_class+0x640/0x640
[  439.667291]  ? print_usage_bug+0xc0/0xc0
[  439.671344]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.676876]  ? check_preemption_disabled+0x48/0x280
[  439.681895]  ? __lock_is_held+0xb5/0x140
[  439.685958]  __alloc_pages_nodemask+0xa80/0xde0
[  439.690620]  ? zap_class+0x640/0x640
[  439.694344]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  439.699361]  ? find_held_lock+0x36/0x1c0
[  439.703425]  ? ____cache_alloc_node+0x1c7/0x1e0
[  439.708087]  ? lock_downgrade+0x900/0x900
[  439.712235]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.717771]  cache_grow_begin+0xa5/0x8c0
[  439.721822]  ? do_raw_spin_unlock+0xa7/0x330
[  439.726226]  fallback_alloc+0x204/0x2e0
[  439.730202]  ____cache_alloc_node+0x1c7/0x1e0
[  439.734694]  kmem_cache_alloc_node+0xe3/0x730
[  439.739190]  ? ipv6_get_ifaddr+0x42e/0x620
[  439.743431]  __alloc_skb+0x119/0x770
[  439.747151]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.752428]  ? netdev_alloc_frag+0x1f0/0x1f0
[  439.756830]  ? lock_downgrade+0x900/0x900
[  439.762041]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.767570]  ? refcount_sub_and_test_checked+0x203/0x310
[  439.773017]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  439.778470]  ? addrconf_rs_timer+0x690/0x690
[  439.782880]  ndisc_alloc_skb+0x144/0x340
[  439.786940]  ndisc_send_rs+0x331/0x6e0
[  439.790821]  addrconf_rs_timer+0x314/0x690
[  439.795056]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.799293]  call_timer_fn+0x272/0x920
[  439.803176]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.807409]  ? process_timeout+0x40/0x40
[  439.811475]  ? mark_held_locks+0xc7/0x130
[  439.815627]  ? _raw_spin_unlock_irq+0x27/0x80
[  439.820114]  ? _raw_spin_unlock_irq+0x27/0x80
[  439.824596]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.828821]  ? lockdep_hardirqs_on+0x296/0x5b0
[  439.833413]  ? trace_hardirqs_on+0xbd/0x310
[  439.837735]  ? kasan_check_read+0x11/0x20
[  439.841879]  ? __run_timers+0x7da/0xc70
[  439.845845]  ? trace_hardirqs_off_caller+0x310/0x310
[  439.850951]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.855191]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.860197]  __run_timers+0x7e5/0xc70
[  439.863998]  ? timer_fixup_init+0x70/0x70
[  439.868137]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  439.873156]  ? zap_class+0x640/0x640
[  439.876869]  ? print_usage_bug+0xc0/0xc0
[  439.880943]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  439.886132]  ? find_held_lock+0x36/0x1c0
[  439.890197]  ? zap_class+0x640/0x640
[  439.893909]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.899440]  ? check_preemption_disabled+0x48/0x280
[  439.904456]  ? __lock_is_held+0xb5/0x140
[  439.908514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.914041]  ? check_preemption_disabled+0x48/0x280
[  439.919054]  run_timer_softirq+0x52/0xb0
[  439.923107]  ? rcu_read_lock_sched_held+0x14f/0x180
[  439.928660]  __do_softirq+0x308/0xb7e
[  439.932462]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  439.936949]  ? lock_downgrade+0x900/0x900
[  439.941094]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  439.946198]  ? pvclock_read_flags+0x160/0x160
[  439.950691]  ? lapic_next_event+0x5a/0x90
[  439.954834]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.961292]  ? kvm_clock_read+0x18/0x30
[  439.965261]  ? kvm_sched_clock_read+0x9/0x20
[  439.969671]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.975202]  ? check_preemption_disabled+0x48/0x280
[  439.980222]  irq_exit+0x17f/0x1c0
[  439.983674]  smp_apic_timer_interrupt+0x1cb/0x760
[  439.988635]  ? smp_reschedule_interrupt+0x109/0x650
[  439.993654]  ? smp_call_function_single_interrupt+0x650/0x650
[  439.999542]  ? interrupt_entry+0xb5/0xc0
[  440.003604]  ? trace_hardirqs_off_caller+0xbb/0x310
[  440.008617]  ? trace_hardirqs_off_caller+0xbb/0x310
[  440.013643]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.018480]  ? trace_hardirqs_on_caller+0x310/0x310
[  440.023488]  ? trace_hardirqs_on_caller+0x310/0x310
[  440.028497]  ? task_prio+0x50/0x50
[  440.032029]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.037556]  ? check_preemption_disabled+0x48/0x280
[  440.042567]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.047409]  apic_timer_interrupt+0xf/0x20
[  440.051636]  </IRQ>
[  440.053871] RIP: 0010:dump_stack+0x358/0x39d
[  440.059256] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  440.078159] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  440.085859] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  440.093121] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  440.100388] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  440.107646] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  440.114911] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  440.122184]  ? dump_stack+0x34f/0x39d
[  440.125991]  ? dump_stack_print_info.cold.1+0x20/0x20
[  440.131177]  ? mark_held_locks+0x130/0x130
[  440.135403]  ? mark_held_locks+0x130/0x130
[  440.139642]  dump_header+0x27b/0xf72
[  440.143365]  ? pagefault_out_of_memory+0x197/0x197
[  440.148291]  ? __lock_acquire+0x62f/0x4c20
[  440.152520]  ? percpu_ref_get_many+0x240/0x240
[  440.157369]  ? print_usage_bug+0xc0/0xc0
[  440.161426]  ? zap_class+0x640/0x640
[  440.165158]  ? print_usage_bug+0xc0/0xc0
[  440.169228]  ? print_usage_bug+0xc0/0xc0
[  440.173369]  ? zap_class+0x640/0x640
[  440.177091]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.182632]  ? find_held_lock+0x36/0x1c0
[  440.186696]  ? mark_held_locks+0xc7/0x130
[  440.190837]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  440.195932]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  440.201026]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  440.205603]  ? trace_hardirqs_on+0xbd/0x310
[  440.209939]  ? kasan_check_read+0x11/0x20
[  440.214083]  ? ___ratelimit+0x3b4/0x672
[  440.218052]  ? trace_hardirqs_off_caller+0x310/0x310
[  440.223152]  ? trace_hardirqs_on+0x310/0x310
[  440.227557]  ? lock_downgrade+0x900/0x900
[  440.231702]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  440.236799]  ? ___ratelimit+0x3b9/0x672
[  440.240766]  ? idr_get_free+0xf70/0xf70
[  440.244732]  ? find_held_lock+0x36/0x1c0
[  440.248799]  oom_kill_process.cold.27+0x10/0x903
[  440.253548]  ? zap_class+0x640/0x640
[  440.258014]  ? check_preemption_disabled+0x48/0x280
[  440.263025]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  440.267944]  ? kasan_check_read+0x11/0x20
[  440.272077]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.277343]  ? oom_evaluate_task+0x540/0x540
[  440.281751]  ? find_held_lock+0x36/0x1c0
[  440.285813]  ? out_of_memory+0x974/0x1430
[  440.289956]  ? lock_downgrade+0x900/0x900
[  440.294103]  ? check_preemption_disabled+0x48/0x280
[  440.299120]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  440.304050]  ? kasan_check_read+0x11/0x20
[  440.308191]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.313458]  ? rcu_softirq_qs+0x20/0x20
[  440.317429]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.322955]  ? oom_evaluate_task+0x302/0x540
[  440.327358]  out_of_memory+0xa84/0x1430
[  440.331336]  ? oom_killer_disable+0x3a0/0x3a0
[  440.335826]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  440.340756]  ? __ww_mutex_check_waiters+0x160/0x160
[  440.345866]  __alloc_pages_slowpath+0x2354/0x2e10
[  440.350724]  ? warn_alloc+0x120/0x120
[  440.354518]  ? mark_held_locks+0x130/0x130
[  440.359486]  ? find_get_entry+0xaae/0x1120
[  440.363719]  ? filemap_map_pages+0x1a20/0x1a20
[  440.368295]  ? zap_class+0x640/0x640
[  440.372002]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.377533]  ? check_preemption_disabled+0x48/0x280
[  440.382544]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.388073]  ? should_fail+0x22d/0xd01
[  440.391981]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  440.397083]  ? zap_class+0x640/0x640
[  440.400813]  ? __lock_is_held+0xb5/0x140
[  440.404876]  ? mark_held_locks+0x130/0x130
[  440.409105]  ? lock_release+0xa00/0xa00
[  440.413073]  ? perf_trace_sched_process_exec+0x860/0x860
[  440.418531]  ? xa_load+0x2ba/0x460
[  440.422068]  ? lock_downgrade+0x900/0x900
[  440.426216]  ? __might_sleep+0x95/0x190
[  440.430190]  __alloc_pages_nodemask+0xa80/0xde0
[  440.434857]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  440.439865]  ? __page_cache_alloc+0x191/0x5c0
[  440.444350]  ? xa_load+0x2e1/0x460
[  440.447882]  ? xa_clear_mark+0x40/0x40
[  440.451762]  ? zap_class+0x640/0x640
[  440.455477]  ? zap_class+0x640/0x640
[  440.460167]  ? zap_class+0x640/0x640
[  440.463875]  ? __do_page_cache_readahead+0x663/0x810
[  440.469211]  ? find_held_lock+0x36/0x1c0
[  440.473275]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  440.478807]  alloc_pages_current+0x173/0x350
[  440.483212]  __page_cache_alloc+0x38c/0x5c0
[  440.487527]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  440.492459]  ? kasan_check_read+0x11/0x20
[  440.496608]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.501882]  ? generic_perform_write+0x6a0/0x6a0
[  440.506631]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.512163]  ? check_preemption_disabled+0x48/0x280
[  440.517179]  filemap_fault+0x1595/0x25f0
[  440.521245]  ? __lock_page_or_retry+0xa00/0xa00
[  440.525906]  ? mark_held_locks+0x130/0x130
[  440.530148]  ? filemap_map_pages+0xd6b/0x1a20
[  440.534639]  ? lock_downgrade+0x900/0x900
[  440.538778]  ? check_preemption_disabled+0x48/0x280
[  440.543795]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  440.548711]  ? kasan_check_read+0x11/0x20
[  440.552852]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.558636]  ? rcu_softirq_qs+0x20/0x20
[  440.562621]  ? filemap_map_pages+0xd92/0x1a20
[  440.567120]  ? find_get_entries_tag+0x1400/0x1400
[  440.571969]  ? debug_object_destroy+0x2b0/0x2b0
[  440.576635]  ? lock_pi_update_atomic+0x150/0x150
[  440.581391]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.586930]  ? lock_acquire+0x1ed/0x520
[  440.590898]  ? ext4_filemap_fault+0x7a/0xad
[  440.595221]  ? lock_release+0xa00/0xa00
[  440.599189]  ? perf_trace_sched_process_exec+0x860/0x860
[  440.604628]  ? print_usage_bug+0xc0/0xc0
[  440.608680]  ? print_usage_bug+0xc0/0xc0
[  440.612758]  ? down_read+0x8d/0x120
[  440.616375]  ? ext4_filemap_fault+0x7a/0xad
[  440.620689]  ? __down_interruptible+0x700/0x700
[  440.625382]  ext4_filemap_fault+0x82/0xad
[  440.629524]  __do_fault+0x100/0x6b0
[  440.633150]  ? pmd_devmap_trans_unstable+0x220/0x220
[  440.638249]  ? mark_held_locks+0x130/0x130
[  440.642475]  ? mark_held_locks+0x130/0x130
[  440.646703]  ? do_raw_spin_trylock+0x270/0x270
[  440.651283]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.657339]  __handle_mm_fault+0x3ea0/0x5be0
[  440.661741]  ? perf_trace_lock+0x7a0/0x7a0
[  440.665978]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  440.670821]  ? __switch_to_asm+0x34/0x70
[  440.674874]  ? __switch_to_asm+0x34/0x70
[  440.678939]  ? zap_class+0x640/0x640
[  440.682656]  ? zap_class+0x640/0x640
[  440.686359]  ? __x64_sys_futex+0x53e/0x6a0
[  440.690598]  ? find_held_lock+0x36/0x1c0
[  440.694662]  ? handle_mm_fault+0x42a/0xc70
[  440.698904]  ? lock_downgrade+0x900/0x900
[  440.703042]  ? check_preemption_disabled+0x48/0x280
[  440.708055]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  440.712980]  ? kasan_check_read+0x11/0x20
[  440.717123]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.722391]  ? rcu_softirq_qs+0x20/0x20
[  440.726355]  ? trace_hardirqs_off_caller+0x310/0x310
[  440.731449]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.736978]  ? check_preemption_disabled+0x48/0x280
[  440.741992]  handle_mm_fault+0x54f/0xc70
[  440.746051]  ? __handle_mm_fault+0x5be0/0x5be0
[  440.750630]  ? find_vma+0x34/0x190
[  440.754165]  __do_page_fault+0x5e8/0xe60
[  440.758546]  ? trace_hardirqs_off+0xb8/0x310
[  440.762961]  do_page_fault+0xf2/0x7e0
[  440.766749]  ? vmalloc_sync_all+0x30/0x30
[  440.770881]  ? error_entry+0x70/0xd0
[  440.774589]  ? trace_hardirqs_off_caller+0xbb/0x310
[  440.779603]  ? trace_hardirqs_on_caller+0xc0/0x310
[  440.784530]  ? syscall_return_slowpath+0x5e0/0x5e0
[  440.789450]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.794287]  ? trace_hardirqs_on_caller+0x310/0x310
[  440.799288]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  440.804741]  ? prepare_exit_to_usermode+0x291/0x3b0
[  440.809750]  ? page_fault+0x8/0x30
[  440.813284]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.818123]  ? page_fault+0x8/0x30
[  440.821659]  page_fault+0x1e/0x30
[  440.825106] RIP: 0033:0x45ddf3
[  440.828302] Code: Bad RIP value.
[  440.831666] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  440.837017] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  440.844277] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  440.851539] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  440.859790] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  440.867057] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  440.874340] warn_alloc_show_mem: 1 callbacks suppressed
[  440.874349] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  440.874350] Mem-Info:
[  440.874379] active_anon:54141 inactive_anon:292 isolated_anon:0
[  440.874379]  active_file:12 inactive_file:13 isolated_file:0
[  440.874379]  unevictable:0 dirty:0 writeback:0 unstable:0
[  440.874379]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  440.874379]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  440.874379]  free:13705 free_pcp:178 free_cma:0
[  440.879713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  440.886459] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  440.888848] Call Trace:
[  440.921702] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  440.931053]  dump_stack+0x244/0x39d
[  440.958945] lowmem_reserve[]: 0 2818 6321 6321
[  440.961522]  ? dump_stack_print_info.cold.1+0x20/0x20
[  440.987596] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  440.991214]  warn_alloc.cold.116+0xb7/0x1bd
[  440.995753] lowmem_reserve[]: 0 0 3503 3503
[  441.000945]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  441.028407] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  441.032719]  ? lock_downgrade+0x900/0x900
[  441.037007] lowmem_reserve[]: 0 0 0 0
[  441.041841]  ? trace_hardirqs_off+0xb8/0x310
[  441.071707] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  441.075846]  ? trace_hardirqs_off+0xb8/0x310
[  441.079617] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  441.084019]  __alloc_pages_slowpath+0x26e8/0x2e10
[  441.097500] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  441.102011]  ? warn_alloc+0x120/0x120
[  441.117223] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  441.122044]  ? print_usage_bug+0xc0/0xc0
[  441.136232] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  441.140029]  ? warn_alloc+0x120/0x120
[  441.148833] 366 total pagecache pages
[  441.152884]  ? warn_alloc+0x120/0x120
[  441.162010] 0 pages in swap cache
[  441.165792]  ? print_usage_bug+0xc0/0xc0
[  441.169569] Swap cache stats: add 0, delete 0, find 0/0
[  441.173350]  ? print_usage_bug+0xc0/0xc0
[  441.176771] Free swap  = 0kB
[  441.180813]  ? __lock_acquire+0x62f/0x4c20
[  441.186143] Total swap = 0kB
[  441.190192]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.193175] 1965979 pages RAM
[  441.197395]  ? should_fail+0x22d/0xd01
[  441.200379] 0 pages HighMem/MovableOnly
[  441.205899]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  441.208975] 342854 pages reserved
[  441.212849]  ? __lock_acquire+0x62f/0x4c20
[  441.216791] 0 pages cma reserved
[  441.221875]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  441.225346] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  441.229509]  ? __lock_acquire+0x62f/0x4c20
[  441.229523]  ? should_fail+0x22d/0xd01
[  441.232934] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  441.237954]  ? find_held_lock+0x36/0x1c0
[  441.244412] syz-fuzzer cpuset=/ mems_allowed=0
[  441.248631]  ? mark_held_locks+0x130/0x130
[  441.275817]  ? mark_held_locks+0x130/0x130
[  441.280041]  ? zap_class+0x640/0x640
[  441.283754]  ? mark_held_locks+0xc7/0x130
[  441.287904]  ? do_raw_spin_unlock+0xa7/0x330
[  441.292305]  ? zap_class+0x640/0x640
[  441.296013]  ? print_usage_bug+0xc0/0xc0
[  441.300070]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.305605]  ? check_preemption_disabled+0x48/0x280
[  441.310625]  ? __lock_is_held+0xb5/0x140
[  441.314684]  __alloc_pages_nodemask+0xa80/0xde0
[  441.319350]  ? zap_class+0x640/0x640
[  441.323060]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  441.328082]  ? find_held_lock+0x36/0x1c0
[  441.332147]  ? ____cache_alloc_node+0x1c7/0x1e0
[  441.336810]  ? lock_downgrade+0x900/0x900
[  441.340955]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.346489]  cache_grow_begin+0xa5/0x8c0
[  441.350547]  ? do_raw_spin_unlock+0xa7/0x330
[  441.354972]  fallback_alloc+0x204/0x2e0
[  441.359273]  ____cache_alloc_node+0x1c7/0x1e0
[  441.363764]  kmem_cache_alloc_node+0xe3/0x730
[  441.368255]  ? ipv6_get_ifaddr+0x42e/0x620
[  441.372489]  __alloc_skb+0x119/0x770
[  441.376190]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.381462]  ? netdev_alloc_frag+0x1f0/0x1f0
[  441.385873]  ? lock_downgrade+0x900/0x900
[  441.390016]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.395576]  ? refcount_sub_and_test_checked+0x203/0x310
[  441.401025]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  441.406467]  ? addrconf_rs_timer+0x690/0x690
[  441.410878]  ndisc_alloc_skb+0x144/0x340
[  441.414933]  ndisc_send_rs+0x331/0x6e0
[  441.418818]  addrconf_rs_timer+0x314/0x690
[  441.423051]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  441.427289]  call_timer_fn+0x272/0x920
[  441.431196]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  441.435423]  ? process_timeout+0x40/0x40
[  441.439484]  ? __run_timers+0x7da/0xc70
[  441.443450]  ? _raw_spin_unlock_irq+0x27/0x80
[  441.447934]  ? _raw_spin_unlock_irq+0x27/0x80
[  441.452427]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  441.456656]  ? lockdep_hardirqs_on+0x296/0x5b0
[  441.461553]  ? trace_hardirqs_on+0xbd/0x310
[  441.465864]  ? kasan_check_read+0x11/0x20
[  441.470000]  ? __run_timers+0x7da/0xc70
[  441.473970]  ? trace_hardirqs_off_caller+0x310/0x310
[  441.479066]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  441.483298]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  441.487524]  __run_timers+0x7e5/0xc70
[  441.491344]  ? timer_fixup_init+0x70/0x70
[  441.495482]  ? _raw_spin_unlock_irq+0x27/0x80
[  441.499967]  ? _raw_spin_unlock_irq+0x27/0x80
[  441.504452]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  441.509025]  ? trace_hardirqs_on+0xbd/0x310
[  441.513343]  ? kasan_check_read+0x11/0x20
[  441.517480]  ? finish_task_switch+0x1f4/0x910
[  441.521969]  ? trace_hardirqs_off_caller+0x310/0x310
[  441.527066]  ? compat_start_thread+0x80/0x80
[  441.531479]  ? pvclock_read_flags+0x160/0x160
[  441.535965]  ? __switch_to_asm+0x34/0x70
[  441.540021]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.545566]  ? check_preemption_disabled+0x48/0x280
[  441.550601]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  441.556133]  ? rcu_pm_notify+0xc0/0xc0
[  441.560309]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.565834]  ? check_preemption_disabled+0x48/0x280
[  441.570863]  run_timer_softirq+0x52/0xb0
[  441.574918]  ? rcu_read_lock_sched_held+0x14f/0x180
[  441.579924]  __do_softirq+0x308/0xb7e
[  441.583718]  ? trace_hardirqs_on_caller+0xc0/0x310
[  441.588659]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  441.593754]  ? trace_hardirqs_on+0x310/0x310
[  441.598160]  ? schedule+0x108/0x460
[  441.601790]  ? trace_hardirqs_off+0xb8/0x310
[  441.606199]  ? smpboot_thread_fn+0x68b/0xa00
[  441.610595]  ? trace_hardirqs_on+0x310/0x310
[  441.614998]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.620533]  ? check_preemption_disabled+0x48/0x280
[  441.625555]  ? takeover_tasklets+0xa90/0xa90
[  441.629958]  run_ksoftirqd+0x5e/0x100
[  441.633748]  smpboot_thread_fn+0x68b/0xa00
[  441.637979]  ? sort_range+0x30/0x30
[  441.641597]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  441.646708]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.652239]  ? __kthread_parkme+0xfb/0x1a0
[  441.656470]  ? sort_range+0x30/0x30
[  441.660385]  kthread+0x35a/0x440
[  441.663758]  ? kthread_stop+0x900/0x900
[  441.667726]  ret_from_fork+0x3a/0x50
[  441.671449] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  441.671526] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  441.678453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  441.678460] Call Trace:
[  441.685006] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  441.694264]  <IRQ>
[  441.696912] ksoftirqd/0 cpuset=/ mems_allowed=0
[  441.707203]  dump_stack+0x244/0x39d
[  441.717587]  ? dump_stack_print_info.cold.1+0x20/0x20
[  441.722777]  warn_alloc.cold.116+0xb7/0x1bd
[  441.727089]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  441.731925]  ? lock_downgrade+0x900/0x900
[  441.736072]  ? trace_hardirqs_off+0xb8/0x310
[  441.740479]  ? trace_hardirqs_off+0xb8/0x310
[  441.744884]  __alloc_pages_slowpath+0x26e8/0x2e10
[  441.749754]  ? warn_alloc+0x120/0x120
[  441.753547]  ? print_usage_bug+0xc0/0xc0
[  441.757946]  ? warn_alloc+0x120/0x120
[  441.761990]  ? warn_alloc+0x120/0x120
[  441.765806]  ? print_usage_bug+0xc0/0xc0
[  441.769856]  ? kvm_clock_read+0x18/0x30
[  441.773825]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  441.778852]  ? print_usage_bug+0xc0/0xc0
[  441.782923]  ? __lock_acquire+0x62f/0x4c20
[  441.787150]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.792673]  ? should_fail+0x22d/0xd01
[  441.796671]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.801941]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  441.807039]  ? __lock_acquire+0x62f/0x4c20
[  441.811266]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  441.816375]  ? __lock_acquire+0x62f/0x4c20
[  441.820603]  ? should_fail+0x22d/0xd01
[  441.824479]  ? rcu_irq_exit+0x1a2/0x390
[  441.828464]  ? mark_held_locks+0x130/0x130
[  441.832692]  ? mark_held_locks+0x130/0x130
[  441.836925]  ? mark_held_locks+0xc7/0x130
[  441.841075]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  441.846079]  ? zap_class+0x640/0x640
[  441.849785]  ? print_usage_bug+0xc0/0xc0
[  441.853846]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.860163]  ? check_preemption_disabled+0x48/0x280
[  441.865179]  ? __lock_is_held+0xb5/0x140
[  441.869245]  __alloc_pages_nodemask+0xa80/0xde0
[  441.873904]  ? zap_class+0x640/0x640
[  441.877617]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  441.882644]  ? find_held_lock+0x36/0x1c0
[  441.886704]  ? ____cache_alloc_node+0x1c7/0x1e0
[  441.891389]  ? lock_downgrade+0x900/0x900
[  441.895542]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.901073]  cache_grow_begin+0xa5/0x8c0
[  441.905124]  ? do_raw_spin_unlock+0xa7/0x330
[  441.909537]  fallback_alloc+0x204/0x2e0
[  441.913514]  ____cache_alloc_node+0x1c7/0x1e0
[  441.918013]  kmem_cache_alloc_node+0xe3/0x730
[  441.922521]  ? ipv6_get_ifaddr+0x42e/0x620
[  441.927233]  __alloc_skb+0x119/0x770
[  441.930938]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.936211]  ? netdev_alloc_frag+0x1f0/0x1f0
[  441.940630]  ? lock_downgrade+0x900/0x900
[  441.944864]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.950395]  ? refcount_sub_and_test_checked+0x203/0x310
[  441.955836]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  441.962240]  ? addrconf_rs_timer+0x690/0x690
[  441.966650]  ndisc_alloc_skb+0x144/0x340
[  441.970698]  ndisc_send_rs+0x331/0x6e0
[  441.974578]  addrconf_rs_timer+0x314/0x690
[  441.978809]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  441.983046]  call_timer_fn+0x272/0x920
[  441.986925]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  441.991153]  ? process_timeout+0x40/0x40
[  441.995218]  ? mark_held_locks+0xc7/0x130
[  441.999359]  ? _raw_spin_unlock_irq+0x27/0x80
[  442.003846]  ? _raw_spin_unlock_irq+0x27/0x80
[  442.008333]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  442.012556]  ? lockdep_hardirqs_on+0x296/0x5b0
[  442.017130]  ? trace_hardirqs_on+0xbd/0x310
[  442.021443]  ? kasan_check_read+0x11/0x20
[  442.025587]  ? __run_timers+0x7da/0xc70
[  442.029569]  ? trace_hardirqs_off_caller+0x310/0x310
[  442.034688]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  442.038924]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  442.043146]  __run_timers+0x7e5/0xc70
[  442.046943]  ? timer_fixup_init+0x70/0x70
[  442.051086]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  442.056117]  ? zap_class+0x640/0x640
[  442.060332]  ? print_usage_bug+0xc0/0xc0
[  442.064389]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  442.069577]  ? find_held_lock+0x36/0x1c0
[  442.073644]  ? zap_class+0x640/0x640
[  442.077352]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.082885]  ? check_preemption_disabled+0x48/0x280
[  442.087900]  ? __lock_is_held+0xb5/0x140
[  442.091955]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.097487]  ? check_preemption_disabled+0x48/0x280
[  442.102513]  run_timer_softirq+0x52/0xb0
[  442.106571]  ? rcu_read_lock_sched_held+0x14f/0x180
[  442.111584]  __do_softirq+0x308/0xb7e
[  442.115380]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  442.119866]  ? lock_downgrade+0x900/0x900
[  442.124035]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  442.129138]  ? pvclock_read_flags+0x160/0x160
[  442.133628]  ? lapic_next_event+0x5a/0x90
[  442.137766]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.143299]  ? kvm_clock_read+0x18/0x30
[  442.147264]  ? kvm_sched_clock_read+0x9/0x20
[  442.151666]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.157963]  ? check_preemption_disabled+0x48/0x280
[  442.162978]  irq_exit+0x17f/0x1c0
[  442.166436]  smp_apic_timer_interrupt+0x1cb/0x760
[  442.171271]  ? smp_reschedule_interrupt+0x109/0x650
[  442.176280]  ? smp_call_function_single_interrupt+0x650/0x650
[  442.182150]  ? interrupt_entry+0xb5/0xc0
[  442.186205]  ? trace_hardirqs_off_caller+0xbb/0x310
[  442.191214]  ? trace_hardirqs_off_caller+0xbb/0x310
[  442.196223]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  442.201057]  ? trace_hardirqs_on_caller+0x310/0x310
[  442.206064]  ? trace_hardirqs_on_caller+0x310/0x310
[  442.211074]  ? task_prio+0x50/0x50
[  442.214611]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.220159]  ? check_preemption_disabled+0x48/0x280
[  442.225174]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  442.230022]  apic_timer_interrupt+0xf/0x20
[  442.234246]  </IRQ>
[  442.236500] RIP: 0010:dump_stack+0x358/0x39d
[  442.240905] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  442.260560] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  442.268271] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  442.275530] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  442.282786] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  442.290046] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  442.297319] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  442.304590]  ? dump_stack+0x34f/0x39d
[  442.308491]  ? dump_stack_print_info.cold.1+0x20/0x20
[  442.313675]  ? mark_held_locks+0x130/0x130
[  442.317903]  ? mark_held_locks+0x130/0x130
[  442.322133]  dump_header+0x27b/0xf72
[  442.325851]  ? pagefault_out_of_memory+0x197/0x197
[  442.330782]  ? __lock_acquire+0x62f/0x4c20
[  442.335018]  ? percpu_ref_get_many+0x240/0x240
[  442.339593]  ? print_usage_bug+0xc0/0xc0
[  442.343653]  ? zap_class+0x640/0x640
[  442.347362]  ? print_usage_bug+0xc0/0xc0
[  442.351408]  ? print_usage_bug+0xc0/0xc0
[  442.355459]  ? zap_class+0x640/0x640
[  442.359954]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.365501]  ? find_held_lock+0x36/0x1c0
[  442.369558]  ? mark_held_locks+0xc7/0x130
[  442.373695]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  442.378787]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  442.383882]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  442.388456]  ? trace_hardirqs_on+0xbd/0x310
[  442.392780]  ? kasan_check_read+0x11/0x20
[  442.396942]  ? ___ratelimit+0x3b4/0x672
[  442.400913]  ? trace_hardirqs_off_caller+0x310/0x310
[  442.406021]  ? trace_hardirqs_on+0x310/0x310
[  442.410423]  ? lock_downgrade+0x900/0x900
[  442.414572]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  442.419680]  ? ___ratelimit+0x3b9/0x672
[  442.423647]  ? idr_get_free+0xf70/0xf70
[  442.427612]  ? find_held_lock+0x36/0x1c0
[  442.431673]  oom_kill_process.cold.27+0x10/0x903
[  442.436425]  ? zap_class+0x640/0x640
[  442.440132]  ? check_preemption_disabled+0x48/0x280
[  442.445141]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  442.450146]  ? kasan_check_read+0x11/0x20
[  442.454288]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  442.460295]  ? oom_evaluate_task+0x540/0x540
[  442.464698]  ? find_held_lock+0x36/0x1c0
[  442.468779]  ? out_of_memory+0x974/0x1430
[  442.472922]  ? lock_downgrade+0x900/0x900
[  442.477063]  ? check_preemption_disabled+0x48/0x280
[  442.482075]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  442.487000]  ? kasan_check_read+0x11/0x20
[  442.491144]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  442.496415]  ? rcu_softirq_qs+0x20/0x20
[  442.500402]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.505928]  ? oom_evaluate_task+0x302/0x540
[  442.510330]  out_of_memory+0xa84/0x1430
[  442.514308]  ? oom_killer_disable+0x3a0/0x3a0
[  442.518793]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  442.523719]  ? __ww_mutex_check_waiters+0x160/0x160
[  442.528736]  __alloc_pages_slowpath+0x2354/0x2e10
[  442.533617]  ? warn_alloc+0x120/0x120
[  442.537408]  ? mark_held_locks+0x130/0x130
[  442.541653]  ? find_get_entry+0xaae/0x1120
[  442.545882]  ? filemap_map_pages+0x1a20/0x1a20
[  442.550459]  ? zap_class+0x640/0x640
[  442.554170]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.560149]  ? check_preemption_disabled+0x48/0x280
[  442.565174]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.570707]  ? should_fail+0x22d/0xd01
[  442.574595]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  442.579689]  ? zap_class+0x640/0x640
[  442.583414]  ? __lock_is_held+0xb5/0x140
[  442.587483]  ? mark_held_locks+0x130/0x130
[  442.591713]  ? lock_release+0xa00/0xa00
[  442.595678]  ? perf_trace_sched_process_exec+0x860/0x860
[  442.601133]  ? xa_load+0x2ba/0x460
[  442.604671]  ? lock_downgrade+0x900/0x900
[  442.608826]  ? __might_sleep+0x95/0x190
[  442.612804]  __alloc_pages_nodemask+0xa80/0xde0
[  442.617475]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  442.622487]  ? __page_cache_alloc+0x191/0x5c0
[  442.626978]  ? xa_load+0x2e1/0x460
[  442.630512]  ? xa_clear_mark+0x40/0x40
[  442.634394]  ? zap_class+0x640/0x640
[  442.638108]  ? zap_class+0x640/0x640
[  442.641811]  ? zap_class+0x640/0x640
[  442.645521]  ? __do_page_cache_readahead+0x663/0x810
[  442.650623]  ? find_held_lock+0x36/0x1c0
[  442.654691]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  442.660984]  alloc_pages_current+0x173/0x350
[  442.665405]  __page_cache_alloc+0x38c/0x5c0
[  442.669718]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  442.674636]  ? kasan_check_read+0x11/0x20
[  442.678773]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  442.684048]  ? generic_perform_write+0x6a0/0x6a0
[  442.688797]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.694325]  ? check_preemption_disabled+0x48/0x280
[  442.699355]  filemap_fault+0x1595/0x25f0
[  442.703415]  ? __lock_page_or_retry+0xa00/0xa00
[  442.708077]  ? mark_held_locks+0x130/0x130
[  442.712493]  ? filemap_map_pages+0xd6b/0x1a20
[  442.716998]  ? lock_downgrade+0x900/0x900
[  442.721134]  ? check_preemption_disabled+0x48/0x280
[  442.726147]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  442.731070]  ? kasan_check_read+0x11/0x20
[  442.735214]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  442.740485]  ? rcu_softirq_qs+0x20/0x20
[  442.744473]  ? filemap_map_pages+0xd92/0x1a20
[  442.748977]  ? find_get_entries_tag+0x1400/0x1400
[  442.753817]  ? debug_object_destroy+0x2b0/0x2b0
[  442.759409]  ? lock_pi_update_atomic+0x150/0x150
[  442.764160]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.769705]  ? lock_acquire+0x1ed/0x520
[  442.773673]  ? ext4_filemap_fault+0x7a/0xad
[  442.778012]  ? lock_release+0xa00/0xa00
[  442.781980]  ? perf_trace_sched_process_exec+0x860/0x860
[  442.787424]  ? print_usage_bug+0xc0/0xc0
[  442.791491]  ? print_usage_bug+0xc0/0xc0
[  442.795552]  ? down_read+0x8d/0x120
[  442.799177]  ? ext4_filemap_fault+0x7a/0xad
[  442.803502]  ? __down_interruptible+0x700/0x700
[  442.808181]  ext4_filemap_fault+0x82/0xad
[  442.812335]  __do_fault+0x100/0x6b0
[  442.815981]  ? pmd_devmap_trans_unstable+0x220/0x220
[  442.821109]  ? mark_held_locks+0x130/0x130
[  442.825350]  ? mark_held_locks+0x130/0x130
[  442.829578]  ? do_raw_spin_trylock+0x270/0x270
[  442.834160]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.839695]  __handle_mm_fault+0x3ea0/0x5be0
[  442.844093]  ? perf_trace_lock+0x7a0/0x7a0
[  442.848323]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  442.853164]  ? __switch_to_asm+0x34/0x70
[  442.858006]  ? __switch_to_asm+0x34/0x70
[  442.862071]  ? zap_class+0x640/0x640
[  442.865774]  ? zap_class+0x640/0x640
[  442.869480]  ? __x64_sys_futex+0x53e/0x6a0
[  442.873708]  ? find_held_lock+0x36/0x1c0
[  442.877784]  ? handle_mm_fault+0x42a/0xc70
[  442.882012]  ? lock_downgrade+0x900/0x900
[  442.886168]  ? check_preemption_disabled+0x48/0x280
[  442.891182]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  442.896105]  ? kasan_check_read+0x11/0x20
[  442.900243]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  442.905511]  ? rcu_softirq_qs+0x20/0x20
[  442.909480]  ? trace_hardirqs_off_caller+0x310/0x310
[  442.914574]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.920101]  ? check_preemption_disabled+0x48/0x280
[  442.925117]  handle_mm_fault+0x54f/0xc70
[  442.929172]  ? __handle_mm_fault+0x5be0/0x5be0
[  442.933748]  ? find_vma+0x34/0x190
[  442.937286]  __do_page_fault+0x5e8/0xe60
[  442.941338]  ? trace_hardirqs_off+0xb8/0x310
[  442.945747]  do_page_fault+0xf2/0x7e0
[  442.949544]  ? vmalloc_sync_all+0x30/0x30
[  442.953680]  ? error_entry+0x70/0xd0
[  442.957866]  ? trace_hardirqs_off_caller+0xbb/0x310
[  442.962873]  ? trace_hardirqs_on_caller+0xc0/0x310
[  442.967798]  ? syscall_return_slowpath+0x5e0/0x5e0
[  442.972722]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  442.977555]  ? trace_hardirqs_on_caller+0x310/0x310
[  442.982565]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  442.988007]  ? prepare_exit_to_usermode+0x291/0x3b0
[  442.993012]  ? page_fault+0x8/0x30
[  442.996546]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  443.001399]  ? page_fault+0x8/0x30
[  443.004931]  page_fault+0x1e/0x30
[  443.008380] RIP: 0033:0x45ddf3
[  443.011573] Code: Bad RIP value.
[  443.014922] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  443.020279] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  443.027540] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  443.034793] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  443.042046] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  443.049300] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  443.056577] warn_alloc_show_mem: 1 callbacks suppressed
[  443.056586] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  443.056588] Mem-Info:
[  443.056617] active_anon:54141 inactive_anon:292 isolated_anon:0
[  443.056617]  active_file:12 inactive_file:13 isolated_file:0
[  443.056617]  unevictable:0 dirty:0 writeback:0 unstable:0
[  443.056617]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  443.056617]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  443.056617]  free:13705 free_pcp:178 free_cma:0
[  443.062195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  443.068940] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  443.071324] Call Trace:
[  443.104187] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  443.113533]  dump_stack+0x244/0x39d
[  443.141159] lowmem_reserve[]: 0 2818 6321 6321
[  443.143740]  ? dump_stack_print_info.cold.1+0x20/0x20
[  443.170573] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  443.174195]  warn_alloc.cold.116+0xb7/0x1bd
[  443.178736] lowmem_reserve[]: 0 0 3503 3503
[  443.183912]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  443.211378] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  443.215705]  ? lock_downgrade+0x900/0x900
[  443.219992] lowmem_reserve[]: 0 0 0 0
[  443.224825]  ? trace_hardirqs_off+0xb8/0x310
[  443.253761] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  443.258200]  ? trace_hardirqs_off+0xb8/0x310
[  443.261965] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  443.266373]  __alloc_pages_slowpath+0x26e8/0x2e10
[  443.279859] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  443.284277]  ? warn_alloc+0x120/0x120
[  443.299519] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  443.304344]  ? print_usage_bug+0xc0/0xc0
[  443.318528] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  443.318535] 366 total pagecache pages
[  443.322315]  ? warn_alloc+0x120/0x120
[  443.331217] 0 pages in swap cache
[  443.335254]  ? warn_alloc+0x120/0x120
[  443.343798] Swap cache stats: add 0, delete 0, find 0/0
[  443.347596]  ? print_usage_bug+0xc0/0xc0
[  443.351364] Free swap  = 0kB
[  443.354804]  ? print_usage_bug+0xc0/0xc0
[  443.358873] Total swap = 0kB
[  443.358880] 1965979 pages RAM
[  443.364229]  ? __lock_acquire+0x62f/0x4c20
[  443.368257] 0 pages HighMem/MovableOnly
[  443.371260]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.375289] 342854 pages reserved
[  443.378291]  ? should_fail+0x22d/0xd01
[  443.381365] 0 pages cma reserved
[  443.385583]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  443.389581] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  443.395042]  ? __lock_acquire+0x62f/0x4c20
[  443.395059]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  443.395074]  ? __lock_acquire+0x62f/0x4c20
[  443.398561] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  443.402398]  ? should_fail+0x22d/0xd01
[  443.405749] syz-fuzzer cpuset=/ mems_allowed=0
[  443.410833]  ? find_held_lock+0x36/0x1c0
[  443.453513]  ? mark_held_locks+0x130/0x130
[  443.458029]  ? mark_held_locks+0x130/0x130
[  443.462254]  ? zap_class+0x640/0x640
[  443.465980]  ? mark_held_locks+0xc7/0x130
[  443.470131]  ? do_raw_spin_unlock+0xa7/0x330
[  443.474546]  ? zap_class+0x640/0x640
[  443.478254]  ? print_usage_bug+0xc0/0xc0
[  443.482329]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.487880]  ? check_preemption_disabled+0x48/0x280
[  443.492910]  ? __lock_is_held+0xb5/0x140
[  443.496983]  __alloc_pages_nodemask+0xa80/0xde0
[  443.501753]  ? zap_class+0x640/0x640
[  443.505464]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  443.510486]  ? find_held_lock+0x36/0x1c0
[  443.514548]  ? ____cache_alloc_node+0x1c7/0x1e0
[  443.519213]  ? lock_downgrade+0x900/0x900
[  443.523359]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.528888]  cache_grow_begin+0xa5/0x8c0
[  443.532940]  ? do_raw_spin_unlock+0xa7/0x330
[  443.537342]  fallback_alloc+0x204/0x2e0
[  443.541311]  ____cache_alloc_node+0x1c7/0x1e0
[  443.545805]  kmem_cache_alloc_node+0xe3/0x730
[  443.550293]  ? ipv6_get_ifaddr+0x42e/0x620
[  443.554536]  __alloc_skb+0x119/0x770
[  443.558522]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  443.563794]  ? netdev_alloc_frag+0x1f0/0x1f0
[  443.568205]  ? lock_downgrade+0x900/0x900
[  443.572353]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.577882]  ? refcount_sub_and_test_checked+0x203/0x310
[  443.583338]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  443.588776]  ? addrconf_rs_timer+0x690/0x690
[  443.593186]  ndisc_alloc_skb+0x144/0x340
[  443.597240]  ndisc_send_rs+0x331/0x6e0
[  443.601123]  addrconf_rs_timer+0x314/0x690
[  443.605369]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  443.609612]  call_timer_fn+0x272/0x920
[  443.613490]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  443.617715]  ? process_timeout+0x40/0x40
[  443.621776]  ? __run_timers+0x7da/0xc70
[  443.625745]  ? _raw_spin_unlock_irq+0x27/0x80
[  443.630231]  ? _raw_spin_unlock_irq+0x27/0x80
[  443.634716]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  443.638943]  ? lockdep_hardirqs_on+0x296/0x5b0
[  443.643516]  ? trace_hardirqs_on+0xbd/0x310
[  443.647829]  ? kasan_check_read+0x11/0x20
[  443.651967]  ? __run_timers+0x7da/0xc70
[  443.655936]  ? trace_hardirqs_off_caller+0x310/0x310
[  443.661315]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  443.665548]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  443.669774]  __run_timers+0x7e5/0xc70
[  443.673577]  ? timer_fixup_init+0x70/0x70
[  443.677716]  ? _raw_spin_unlock_irq+0x27/0x80
[  443.682200]  ? _raw_spin_unlock_irq+0x27/0x80
[  443.686689]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  443.691262]  ? trace_hardirqs_on+0xbd/0x310
[  443.695574]  ? kasan_check_read+0x11/0x20
[  443.699717]  ? finish_task_switch+0x1f4/0x910
[  443.704325]  ? trace_hardirqs_off_caller+0x310/0x310
[  443.709424]  ? compat_start_thread+0x80/0x80
[  443.713847]  ? pvclock_read_flags+0x160/0x160
[  443.718333]  ? __switch_to_asm+0x34/0x70
[  443.722397]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.727938]  ? check_preemption_disabled+0x48/0x280
[  443.732957]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  443.738492]  ? rcu_pm_notify+0xc0/0xc0
[  443.742376]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.747918]  ? check_preemption_disabled+0x48/0x280
[  443.752930]  run_timer_softirq+0x52/0xb0
[  443.757289]  ? rcu_read_lock_sched_held+0x14f/0x180
[  443.762808]  __do_softirq+0x308/0xb7e
[  443.766609]  ? trace_hardirqs_on_caller+0xc0/0x310
[  443.771529]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  443.776621]  ? trace_hardirqs_on+0x310/0x310
[  443.781044]  ? schedule+0x108/0x460
[  443.784674]  ? trace_hardirqs_off+0xb8/0x310
[  443.789077]  ? smpboot_thread_fn+0x68b/0xa00
[  443.793488]  ? trace_hardirqs_on+0x310/0x310
[  443.797885]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.803416]  ? check_preemption_disabled+0x48/0x280
[  443.808427]  ? takeover_tasklets+0xa90/0xa90
[  443.812935]  run_ksoftirqd+0x5e/0x100
[  443.816743]  smpboot_thread_fn+0x68b/0xa00
[  443.820971]  ? sort_range+0x30/0x30
[  443.824604]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  443.829705]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.835237]  ? __kthread_parkme+0xfb/0x1a0
[  443.839465]  ? sort_range+0x30/0x30
[  443.843082]  kthread+0x35a/0x440
[  443.846442]  ? kthread_stop+0x900/0x900
[  443.850416]  ret_from_fork+0x3a/0x50
[  443.854139] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  443.854204] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  443.861848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  443.861853] Call Trace:
[  443.861859]  <IRQ>
[  443.861875]  dump_stack+0x244/0x39d
[  443.861899]  ? dump_stack_print_info.cold.1+0x20/0x20
[  443.868449] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  443.877711]  warn_alloc.cold.116+0xb7/0x1bd
[  443.880258] ksoftirqd/0 cpuset=/ mems_allowed=0
[  443.882410]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  443.915271]  ? lock_downgrade+0x900/0x900
[  443.919417]  ? trace_hardirqs_off+0xb8/0x310
[  443.923823]  ? trace_hardirqs_off+0xb8/0x310
[  443.928771]  __alloc_pages_slowpath+0x26e8/0x2e10
[  443.933632]  ? warn_alloc+0x120/0x120
[  443.937428]  ? print_usage_bug+0xc0/0xc0
[  443.941484]  ? warn_alloc+0x120/0x120
[  443.945280]  ? warn_alloc+0x120/0x120
[  443.949069]  ? print_usage_bug+0xc0/0xc0
[  443.953122]  ? print_usage_bug+0xc0/0xc0
[  443.958111]  ? __lock_acquire+0x62f/0x4c20
[  443.962343]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.967873]  ? should_fail+0x22d/0xd01
[  443.971754]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  443.976847]  ? __lock_acquire+0x62f/0x4c20
[  443.981077]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  443.986168]  ? __lock_acquire+0x62f/0x4c20
[  443.990396]  ? should_fail+0x22d/0xd01
[  443.994272]  ? find_held_lock+0x36/0x1c0
[  443.998328]  ? mark_held_locks+0x130/0x130
[  444.002556]  ? mark_held_locks+0x130/0x130
[  444.006780]  ? zap_class+0x640/0x640
[  444.010487]  ? zap_class+0x640/0x640
[  444.014192]  ? print_usage_bug+0xc0/0xc0
[  444.018239]  ? do_raw_spin_unlock+0xa7/0x330
[  444.022638]  ? zap_class+0x640/0x640
[  444.026337]  ? print_usage_bug+0xc0/0xc0
[  444.030396]  ? wq_watchdog_touch+0x9c/0xfe
[  444.034623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.040152]  ? check_preemption_disabled+0x48/0x280
[  444.045164]  ? __lock_is_held+0xb5/0x140
[  444.049218]  __alloc_pages_nodemask+0xa80/0xde0
[  444.053872]  ? zap_class+0x640/0x640
[  444.058063]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  444.063080]  ? find_held_lock+0x36/0x1c0
[  444.067139]  ? ____cache_alloc_node+0x1c7/0x1e0
[  444.071818]  ? lock_downgrade+0x900/0x900
[  444.075984]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.081515]  cache_grow_begin+0xa5/0x8c0
[  444.085568]  ? do_raw_spin_unlock+0xa7/0x330
[  444.089974]  fallback_alloc+0x204/0x2e0
[  444.093944]  ____cache_alloc_node+0x1c7/0x1e0
[  444.098438]  kmem_cache_alloc_node+0xe3/0x730
[  444.102926]  ? ipv6_get_ifaddr+0x42e/0x620
[  444.107158]  __alloc_skb+0x119/0x770
[  444.110864]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  444.116140]  ? netdev_alloc_frag+0x1f0/0x1f0
[  444.120543]  ? lock_downgrade+0x900/0x900
[  444.124687]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.130213]  ? refcount_sub_and_test_checked+0x203/0x310
[  444.135660]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  444.141105]  ? addrconf_rs_timer+0x690/0x690
[  444.145516]  ndisc_alloc_skb+0x144/0x340
[  444.149568]  ndisc_send_rs+0x331/0x6e0
[  444.153449]  addrconf_rs_timer+0x314/0x690
[  444.158621]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.162857]  call_timer_fn+0x272/0x920
[  444.166740]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.170970]  ? process_timeout+0x40/0x40
[  444.175030]  ? mark_held_locks+0xc7/0x130
[  444.179168]  ? _raw_spin_unlock_irq+0x27/0x80
[  444.183653]  ? _raw_spin_unlock_irq+0x27/0x80
[  444.188145]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.192379]  ? lockdep_hardirqs_on+0x296/0x5b0
[  444.196960]  ? trace_hardirqs_on+0xbd/0x310
[  444.201285]  ? kasan_check_read+0x11/0x20
[  444.205427]  ? __run_timers+0x7da/0xc70
[  444.209398]  ? trace_hardirqs_off_caller+0x310/0x310
[  444.214500]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.218735]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.222965]  __run_timers+0x7e5/0xc70
[  444.226766]  ? timer_fixup_init+0x70/0x70
[  444.230907]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  444.235915]  ? zap_class+0x640/0x640
[  444.239628]  ? print_usage_bug+0xc0/0xc0
[  444.243682]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  444.248879]  ? find_held_lock+0x36/0x1c0
[  444.252938]  ? zap_class+0x640/0x640
[  444.257394]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.262922]  ? check_preemption_disabled+0x48/0x280
[  444.267947]  ? __lock_is_held+0xb5/0x140
[  444.272003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.277531]  ? check_preemption_disabled+0x48/0x280
[  444.282555]  run_timer_softirq+0x52/0xb0
[  444.286607]  ? rcu_read_lock_sched_held+0x14f/0x180
[  444.291615]  __do_softirq+0x308/0xb7e
[  444.295412]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  444.299897]  ? lock_downgrade+0x900/0x900
[  444.304038]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  444.309142]  ? pvclock_read_flags+0x160/0x160
[  444.313636]  ? lapic_next_event+0x5a/0x90
[  444.317779]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.323317]  ? kvm_clock_read+0x18/0x30
[  444.327293]  ? kvm_sched_clock_read+0x9/0x20
[  444.331697]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  444.337231]  ? check_preemption_disabled+0x48/0x280
[  444.342250]  irq_exit+0x17f/0x1c0
[  444.345697]  smp_apic_timer_interrupt+0x1cb/0x760
[  444.350532]  ? smp_reschedule_interrupt+0x109/0x650
[  444.355541]  ? smp_call_function_single_interrupt+0x650/0x650
[  444.361693]  ? interrupt_entry+0xb5/0xc0
[  444.365758]  ? trace_hardirqs_off_caller+0xbb/0x310
[  444.370766]  ? trace_hardirqs_off_caller+0xbb/0x310
[  444.375776]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  444.380608]  ? trace_hardirqs_on_caller+0x310/0x310
[  444.385610]  ? trace_hardirqs_on_caller+0x310/0x310
[  444.390616]  ? task_prio+0x50/0x50
[  444.394166]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.399701]  ? check_preemption_disabled+0x48/0x280
[  444.404715]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  444.409560]  apic_timer_interrupt+0xf/0x20
[  444.413783]  </IRQ>
[  444.416109] RIP: 0010:dump_stack+0x358/0x39d
[  444.420510] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  444.439400] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  444.447116] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  444.454375] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  444.462114] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  444.469371] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  444.476627] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  444.483905]  ? dump_stack+0x34f/0x39d
[  444.487713]  ? dump_stack_print_info.cold.1+0x20/0x20
[  444.492898]  ? mark_held_locks+0x130/0x130
[  444.497128]  ? mark_held_locks+0x130/0x130
[  444.501367]  dump_header+0x27b/0xf72
[  444.505086]  ? pagefault_out_of_memory+0x197/0x197
[  444.510016]  ? __lock_acquire+0x62f/0x4c20
[  444.514245]  ? percpu_ref_get_many+0x240/0x240
[  444.518825]  ? print_usage_bug+0xc0/0xc0
[  444.522893]  ? zap_class+0x640/0x640
[  444.526597]  ? print_usage_bug+0xc0/0xc0
[  444.530648]  ? print_usage_bug+0xc0/0xc0
[  444.534702]  ? zap_class+0x640/0x640
[  444.538411]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.544028]  ? find_held_lock+0x36/0x1c0
[  444.548089]  ? mark_held_locks+0xc7/0x130
[  444.552317]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  444.557673]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  444.562784]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  444.567361]  ? trace_hardirqs_on+0xbd/0x310
[  444.571703]  ? kasan_check_read+0x11/0x20
[  444.575842]  ? ___ratelimit+0x3b4/0x672
[  444.579817]  ? trace_hardirqs_off_caller+0x310/0x310
[  444.584912]  ? trace_hardirqs_on+0x310/0x310
[  444.589312]  ? lock_downgrade+0x900/0x900
[  444.593565]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  444.598667]  ? ___ratelimit+0x3b9/0x672
[  444.602637]  ? idr_get_free+0xf70/0xf70
[  444.606603]  ? find_held_lock+0x36/0x1c0
[  444.610668]  oom_kill_process.cold.27+0x10/0x903
[  444.615416]  ? zap_class+0x640/0x640
[  444.619121]  ? check_preemption_disabled+0x48/0x280
[  444.624137]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  444.629056]  ? kasan_check_read+0x11/0x20
[  444.633195]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  444.638460]  ? oom_evaluate_task+0x540/0x540
[  444.642863]  ? find_held_lock+0x36/0x1c0
[  444.646920]  ? out_of_memory+0x974/0x1430
[  444.651060]  ? lock_downgrade+0x900/0x900
[  444.655196]  ? check_preemption_disabled+0x48/0x280
[  444.661019]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  444.665936]  ? kasan_check_read+0x11/0x20
[  444.670093]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  444.675385]  ? rcu_softirq_qs+0x20/0x20
[  444.679359]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  444.684885]  ? oom_evaluate_task+0x302/0x540
[  444.689287]  out_of_memory+0xa84/0x1430
[  444.693259]  ? oom_killer_disable+0x3a0/0x3a0
[  444.697767]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  444.702690]  ? __ww_mutex_check_waiters+0x160/0x160
[  444.707702]  __alloc_pages_slowpath+0x2354/0x2e10
[  444.712558]  ? warn_alloc+0x120/0x120
[  444.716357]  ? mark_held_locks+0x130/0x130
[  444.720612]  ? find_get_entry+0xaae/0x1120
[  444.724861]  ? filemap_map_pages+0x1a20/0x1a20
[  444.729437]  ? zap_class+0x640/0x640
[  444.733149]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.738681]  ? check_preemption_disabled+0x48/0x280
[  444.743689]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  444.749217]  ? should_fail+0x22d/0xd01
[  444.753102]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  444.758945]  ? zap_class+0x640/0x640
[  444.762675]  ? __lock_is_held+0xb5/0x140
[  444.766739]  ? mark_held_locks+0x130/0x130
[  444.770966]  ? lock_release+0xa00/0xa00
[  444.774958]  ? perf_trace_sched_process_exec+0x860/0x860
[  444.780416]  ? xa_load+0x2ba/0x460
[  444.783953]  ? lock_downgrade+0x900/0x900
[  444.788097]  ? __might_sleep+0x95/0x190
[  444.792063]  __alloc_pages_nodemask+0xa80/0xde0
[  444.796723]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  444.801732]  ? __page_cache_alloc+0x191/0x5c0
[  444.806217]  ? xa_load+0x2e1/0x460
[  444.809751]  ? xa_clear_mark+0x40/0x40
[  444.813632]  ? zap_class+0x640/0x640
[  444.817361]  ? zap_class+0x640/0x640
[  444.821073]  ? zap_class+0x640/0x640
[  444.824777]  ? __do_page_cache_readahead+0x663/0x810
[  444.829874]  ? find_held_lock+0x36/0x1c0
[  444.833934]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  444.839470]  alloc_pages_current+0x173/0x350
[  444.843888]  __page_cache_alloc+0x38c/0x5c0
[  444.848200]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  444.853137]  ? kasan_check_read+0x11/0x20
[  444.858230]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  444.863501]  ? generic_perform_write+0x6a0/0x6a0
[  444.868248]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  444.873792]  ? check_preemption_disabled+0x48/0x280
[  444.878820]  filemap_fault+0x1595/0x25f0
[  444.882892]  ? __lock_page_or_retry+0xa00/0xa00
[  444.887654]  ? mark_held_locks+0x130/0x130
[  444.891887]  ? filemap_map_pages+0xd6b/0x1a20
[  444.896373]  ? lock_downgrade+0x900/0x900
[  444.900518]  ? check_preemption_disabled+0x48/0x280
[  444.905528]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  444.910447]  ? kasan_check_read+0x11/0x20
[  444.914585]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  444.919854]  ? rcu_softirq_qs+0x20/0x20
[  444.923843]  ? filemap_map_pages+0xd92/0x1a20
[  444.928345]  ? find_get_entries_tag+0x1400/0x1400
[  444.933178]  ? debug_object_destroy+0x2b0/0x2b0
[  444.937841]  ? lock_pi_update_atomic+0x150/0x150
[  444.942590]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.948129]  ? lock_acquire+0x1ed/0x520
[  444.952094]  ? ext4_filemap_fault+0x7a/0xad
[  444.956428]  ? lock_release+0xa00/0xa00
[  444.960879]  ? perf_trace_sched_process_exec+0x860/0x860
[  444.966328]  ? print_usage_bug+0xc0/0xc0
[  444.970381]  ? print_usage_bug+0xc0/0xc0
[  444.974442]  ? down_read+0x8d/0x120
[  444.978058]  ? ext4_filemap_fault+0x7a/0xad
[  444.982370]  ? __down_interruptible+0x700/0x700
[  444.987053]  ext4_filemap_fault+0x82/0xad
[  444.991200]  __do_fault+0x100/0x6b0
[  444.994829]  ? pmd_devmap_trans_unstable+0x220/0x220
[  444.999925]  ? mark_held_locks+0x130/0x130
[  445.004154]  ? mark_held_locks+0x130/0x130
[  445.008382]  ? do_raw_spin_trylock+0x270/0x270
[  445.012964]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.018495]  __handle_mm_fault+0x3ea0/0x5be0
[  445.022892]  ? perf_trace_lock+0x7a0/0x7a0
[  445.027129]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  445.031969]  ? __switch_to_asm+0x34/0x70
[  445.036023]  ? __switch_to_asm+0x34/0x70
[  445.040087]  ? zap_class+0x640/0x640
[  445.043788]  ? zap_class+0x640/0x640
[  445.047493]  ? __x64_sys_futex+0x53e/0x6a0
[  445.051721]  ? find_held_lock+0x36/0x1c0
[  445.055781]  ? handle_mm_fault+0x42a/0xc70
[  445.060334]  ? lock_downgrade+0x900/0x900
[  445.064477]  ? check_preemption_disabled+0x48/0x280
[  445.069498]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  445.074423]  ? kasan_check_read+0x11/0x20
[  445.078561]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  445.083832]  ? rcu_softirq_qs+0x20/0x20
[  445.087795]  ? trace_hardirqs_off_caller+0x310/0x310
[  445.092898]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.098518]  ? check_preemption_disabled+0x48/0x280
[  445.103529]  handle_mm_fault+0x54f/0xc70
[  445.107582]  ? __handle_mm_fault+0x5be0/0x5be0
[  445.112157]  ? find_vma+0x34/0x190
[  445.115692]  __do_page_fault+0x5e8/0xe60
[  445.119746]  ? trace_hardirqs_off+0xb8/0x310
[  445.124174]  do_page_fault+0xf2/0x7e0
[  445.127968]  ? vmalloc_sync_all+0x30/0x30
[  445.132108]  ? error_entry+0x70/0xd0
[  445.135817]  ? trace_hardirqs_off_caller+0xbb/0x310
[  445.140829]  ? trace_hardirqs_on_caller+0xc0/0x310
[  445.145757]  ? syscall_return_slowpath+0x5e0/0x5e0
[  445.150677]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  445.155516]  ? trace_hardirqs_on_caller+0x310/0x310
[  445.161030]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  445.166474]  ? prepare_exit_to_usermode+0x291/0x3b0
[  445.171482]  ? page_fault+0x8/0x30
[  445.175017]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  445.179857]  ? page_fault+0x8/0x30
[  445.183391]  page_fault+0x1e/0x30
[  445.186832] RIP: 0033:0x45ddf3
[  445.190023] Code: Bad RIP value.
[  445.193378] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  445.198734] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  445.205994] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  445.213253] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  445.220514] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  445.227777] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  445.235061] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  445.235066] warn_alloc_show_mem: 1 callbacks suppressed
[  445.235071] Mem-Info:
[  445.241810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  445.241817] Call Trace:
[  445.247179] active_anon:54141 inactive_anon:292 isolated_anon:0
[  445.247179]  active_file:12 inactive_file:13 isolated_file:0
[  445.247179]  unevictable:0 dirty:0 writeback:0 unstable:0
[  445.247179]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  445.247179]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  445.247179]  free:13705 free_pcp:178 free_cma:0
[  445.249652]  dump_stack+0x244/0x39d
[  445.259304] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  445.261873]  ? dump_stack_print_info.cold.1+0x20/0x20
[  445.294722] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  445.298348]  warn_alloc.cold.116+0xb7/0x1bd
[  445.326087] lowmem_reserve[]: 0 2818 6321 6321
[  445.331273]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  445.358271] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  445.362587]  ? lock_downgrade+0x900/0x900
[  445.367133] lowmem_reserve[]: 0 0 3503 3503
[  445.371966]  ? trace_hardirqs_off+0xb8/0x310
[  445.399430] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  445.403573]  ? trace_hardirqs_off+0xb8/0x310
[  445.407857] lowmem_reserve[]: 0 0 0 0
[  445.412256]  __alloc_pages_slowpath+0x26e8/0x2e10
[  445.441288] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  445.445709]  ? warn_alloc+0x120/0x120
[  445.449467] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  445.454312]  ? warn_alloc+0x120/0x120
[  445.468775] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  445.472585]  ? warn_alloc+0x120/0x120
[  445.487905] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  445.491689]  ? trace_hardirqs_off+0xb8/0x310
[  445.505877] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  445.509655]  ? print_usage_bug+0xc0/0xc0
[  445.518455] 366 total pagecache pages
[  445.522867]  ? print_usage_bug+0xc0/0xc0
[  445.531416] 0 pages in swap cache
[  445.535453]  ? __lock_acquire+0x62f/0x4c20
[  445.539310] Swap cache stats: add 0, delete 0, find 0/0
[  445.543373]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.546803] Free swap  = 0kB
[  445.546810] Total swap = 0kB
[  445.551027]  ? should_fail+0x22d/0xd01
[  445.557300] 1965979 pages RAM
[  445.562824]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  445.565810] 0 pages HighMem/MovableOnly
[  445.568811]  ? __lock_acquire+0x62f/0x4c20
[  445.572666] 342854 pages reserved
[  445.575759]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  445.580830] 0 pages cma reserved
[  445.584795]  ? __lock_acquire+0x62f/0x4c20
[  445.589049] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  445.592429]  ? should_fail+0x22d/0xd01
[  445.592467]  ? mark_held_locks+0x130/0x130
[  445.592485]  ? mark_held_locks+0x130/0x130
[  445.597603] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  445.600910]  ? zap_class+0x640/0x640
[  445.605109] syz-fuzzer cpuset=/ mems_allowed=0
[  445.611581]  ? ret_from_fork+0x3a/0x50
[  445.646193]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.651722]  ? check_preemption_disabled+0x48/0x280
[  445.657067]  ? __lock_is_held+0xb5/0x140
[  445.661121]  __alloc_pages_nodemask+0xa80/0xde0
[  445.665780]  ? zap_class+0x640/0x640
[  445.669499]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  445.674535]  ? find_held_lock+0x36/0x1c0
[  445.678609]  ? ____cache_alloc_node+0x1c7/0x1e0
[  445.683296]  ? lock_downgrade+0x900/0x900
[  445.687454]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.692987]  cache_grow_begin+0xa5/0x8c0
[  445.697046]  ? do_raw_spin_unlock+0xa7/0x330
[  445.701455]  fallback_alloc+0x204/0x2e0
[  445.705426]  ____cache_alloc_node+0x1c7/0x1e0
[  445.709919]  kmem_cache_alloc_node+0xe3/0x730
[  445.714405]  ? mark_held_locks+0xc7/0x130
[  445.718555]  __alloc_skb+0x119/0x770
[  445.722267]  ? netdev_alloc_frag+0x1f0/0x1f0
[  445.726670]  ? do_raw_spin_trylock+0x270/0x270
[  445.731242]  ? kmem_cache_alloc_trace+0x353/0x750
[  445.736100]  ? queue_work_on+0x12c/0x1e0
[  445.740157]  ? switchdev_port_obj_del+0xdc/0x440
[  445.744901]  ? switchdev_trans_item_enqueue+0x260/0x260
[  445.750369]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  445.755381]  __br_mdb_notify+0x4ff/0x15d0
[  445.760341]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  445.765444]  ? __br_mdb_add+0x7f0/0x7f0
[  445.769501]  ? mark_held_locks+0x130/0x130
[  445.773730]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  445.778829]  ? debug_object_assert_init+0x368/0x4b0
[  445.783840]  ? debug_object_init_on_stack+0x20/0x20
[  445.788860]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.794393]  br_mdb_notify+0x310/0x410
[  445.798280]  ? br_mdb_dump+0x27b0/0x27b0
[  445.802352]  br_multicast_del_pg+0x3df/0x790
[  445.806756]  ? br_mdb_ip_get+0x940/0x940
[  445.810808]  ? rwlock_bug.part.2+0x90/0x90
[  445.815045]  ? __lock_is_held+0xb5/0x140
[  445.819124]  br_multicast_port_group_expired+0x189/0x1e0
[  445.824566]  call_timer_fn+0x272/0x920
[  445.828447]  ? br_multicast_del_pg+0x790/0x790
[  445.833022]  ? process_timeout+0x40/0x40
[  445.837077]  ? __run_timers+0x7da/0xc70
[  445.841042]  ? _raw_spin_unlock_irq+0x27/0x80
[  445.845523]  ? _raw_spin_unlock_irq+0x27/0x80
[  445.850008]  ? br_multicast_del_pg+0x790/0x790
[  445.854584]  ? lockdep_hardirqs_on+0x296/0x5b0
[  445.859470]  ? trace_hardirqs_on+0xbd/0x310
[  445.863785]  ? kasan_check_read+0x11/0x20
[  445.867922]  ? __run_timers+0x7da/0xc70
[  445.871888]  ? trace_hardirqs_off_caller+0x310/0x310
[  445.877005]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  445.881237]  ? br_multicast_del_pg+0x790/0x790
[  445.885840]  __run_timers+0x7e5/0xc70
[  445.889642]  ? timer_fixup_init+0x70/0x70
[  445.893794]  ? _raw_spin_unlock_irq+0x27/0x80
[  445.898285]  ? _raw_spin_unlock_irq+0x27/0x80
[  445.902771]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  445.907351]  ? trace_hardirqs_on+0xbd/0x310
[  445.911659]  ? kasan_check_read+0x11/0x20
[  445.915812]  ? finish_task_switch+0x1f4/0x910
[  445.920304]  ? trace_hardirqs_off_caller+0x310/0x310
[  445.925481]  ? compat_start_thread+0x80/0x80
[  445.929909]  ? pvclock_read_flags+0x160/0x160
[  445.934404]  ? __switch_to_asm+0x34/0x70
[  445.938456]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.943989]  ? check_preemption_disabled+0x48/0x280
[  445.949005]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  445.954530]  ? rcu_pm_notify+0xc0/0xc0
[  445.958738]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.964282]  ? check_preemption_disabled+0x48/0x280
[  445.969298]  run_timer_softirq+0x52/0xb0
[  445.973348]  ? rcu_read_lock_sched_held+0x14f/0x180
[  445.978358]  __do_softirq+0x308/0xb7e
[  445.982154]  ? trace_hardirqs_on_caller+0xc0/0x310
[  445.987076]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  445.992169]  ? trace_hardirqs_on+0x310/0x310
[  445.996573]  ? schedule+0x108/0x460
[  446.000198]  ? trace_hardirqs_off+0xb8/0x310
[  446.004592]  ? smpboot_thread_fn+0x68b/0xa00
[  446.008999]  ? trace_hardirqs_on+0x310/0x310
[  446.013400]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.018928]  ? check_preemption_disabled+0x48/0x280
[  446.023935]  ? takeover_tasklets+0xa90/0xa90
[  446.028341]  run_ksoftirqd+0x5e/0x100
[  446.032138]  smpboot_thread_fn+0x68b/0xa00
[  446.036366]  ? sort_range+0x30/0x30
[  446.039980]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  446.045070]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.050606]  ? __kthread_parkme+0xfb/0x1a0
[  446.054922]  ? sort_range+0x30/0x30
[  446.058881]  kthread+0x35a/0x440
[  446.062244]  ? kthread_stop+0x900/0x900
[  446.066213]  ret_from_fork+0x3a/0x50
[  446.069965] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  446.070107] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  446.076887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  446.087172] ksoftirqd/0 cpuset=/ mems_allowed=0
[  446.096502] Call Trace:
[  446.103705]  <IRQ>
[  446.105852]  dump_stack+0x244/0x39d
[  446.109476]  ? dump_stack_print_info.cold.1+0x20/0x20
[  446.114666]  warn_alloc.cold.116+0xb7/0x1bd
[  446.118977]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  446.123840]  ? lock_downgrade+0x900/0x900
[  446.127985]  ? trace_hardirqs_off+0xb8/0x310
[  446.132394]  ? trace_hardirqs_off+0xb8/0x310
[  446.136800]  __alloc_pages_slowpath+0x26e8/0x2e10
[  446.141661]  ? warn_alloc+0x120/0x120
[  446.145457]  ? print_usage_bug+0xc0/0xc0
[  446.149509]  ? warn_alloc+0x120/0x120
[  446.153308]  ? warn_alloc+0x120/0x120
[  446.158072]  ? print_usage_bug+0xc0/0xc0
[  446.162132]  ? print_usage_bug+0xc0/0xc0
[  446.166185]  ? __lock_acquire+0x62f/0x4c20
[  446.170414]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.175944]  ? should_fail+0x22d/0xd01
[  446.179835]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  446.184929]  ? __lock_acquire+0x62f/0x4c20
[  446.189171]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  446.194268]  ? __lock_acquire+0x62f/0x4c20
[  446.198494]  ? should_fail+0x22d/0xd01
[  446.202372]  ? find_held_lock+0x36/0x1c0
[  446.206431]  ? mark_held_locks+0x130/0x130
[  446.210665]  ? mark_held_locks+0x130/0x130
[  446.214888]  ? zap_class+0x640/0x640
[  446.218593]  ? zap_class+0x640/0x640
[  446.222321]  ? print_usage_bug+0xc0/0xc0
[  446.226378]  ? do_raw_spin_unlock+0xa7/0x330
[  446.230779]  ? zap_class+0x640/0x640
[  446.234496]  ? print_usage_bug+0xc0/0xc0
[  446.238545]  ? wq_watchdog_touch+0x9c/0xfe
[  446.242778]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.248309]  ? check_preemption_disabled+0x48/0x280
[  446.253325]  ? __lock_is_held+0xb5/0x140
[  446.258316]  __alloc_pages_nodemask+0xa80/0xde0
[  446.262978]  ? zap_class+0x640/0x640
[  446.266684]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  446.271702]  ? find_held_lock+0x36/0x1c0
[  446.275764]  ? ____cache_alloc_node+0x1c7/0x1e0
[  446.280422]  ? lock_downgrade+0x900/0x900
[  446.284566]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.290100]  cache_grow_begin+0xa5/0x8c0
[  446.294151]  ? do_raw_spin_unlock+0xa7/0x330
[  446.298557]  fallback_alloc+0x204/0x2e0
[  446.302528]  ____cache_alloc_node+0x1c7/0x1e0
[  446.307019]  kmem_cache_alloc_node+0xe3/0x730
[  446.311509]  ? ipv6_get_ifaddr+0x42e/0x620
[  446.315751]  __alloc_skb+0x119/0x770
[  446.319460]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.324738]  ? netdev_alloc_frag+0x1f0/0x1f0
[  446.329140]  ? lock_downgrade+0x900/0x900
[  446.333288]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.338817]  ? refcount_sub_and_test_checked+0x203/0x310
[  446.344269]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  446.349712]  ? addrconf_rs_timer+0x690/0x690
[  446.354127]  ndisc_alloc_skb+0x144/0x340
[  446.358995]  ndisc_send_rs+0x331/0x6e0
[  446.362883]  addrconf_rs_timer+0x314/0x690
[  446.367221]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  446.371458]  call_timer_fn+0x272/0x920
[  446.375336]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  446.379562]  ? process_timeout+0x40/0x40
[  446.383630]  ? mark_held_locks+0xc7/0x130
[  446.387774]  ? _raw_spin_unlock_irq+0x27/0x80
[  446.392264]  ? _raw_spin_unlock_irq+0x27/0x80
[  446.396755]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  446.400981]  ? lockdep_hardirqs_on+0x296/0x5b0
[  446.405557]  ? trace_hardirqs_on+0xbd/0x310
[  446.409871]  ? kasan_check_read+0x11/0x20
[  446.414010]  ? __run_timers+0x7da/0xc70
[  446.417978]  ? trace_hardirqs_off_caller+0x310/0x310
[  446.423079]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  446.427312]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  446.431536]  __run_timers+0x7e5/0xc70
[  446.435339]  ? timer_fixup_init+0x70/0x70
[  446.439486]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  446.444499]  ? zap_class+0x640/0x640
[  446.448216]  ? print_usage_bug+0xc0/0xc0
[  446.452274]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  446.458155]  ? find_held_lock+0x36/0x1c0
[  446.462219]  ? zap_class+0x640/0x640
[  446.465931]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.471464]  ? check_preemption_disabled+0x48/0x280
[  446.476485]  ? __lock_is_held+0xb5/0x140
[  446.480538]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.486068]  ? check_preemption_disabled+0x48/0x280
[  446.491084]  run_timer_softirq+0x52/0xb0
[  446.495138]  ? rcu_read_lock_sched_held+0x14f/0x180
[  446.500150]  __do_softirq+0x308/0xb7e
[  446.503945]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  446.508434]  ? lock_downgrade+0x900/0x900
[  446.512582]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  446.517686]  ? pvclock_read_flags+0x160/0x160
[  446.522180]  ? lapic_next_event+0x5a/0x90
[  446.526332]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.531869]  ? kvm_clock_read+0x18/0x30
[  446.535833]  ? kvm_sched_clock_read+0x9/0x20
[  446.540239]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.545771]  ? check_preemption_disabled+0x48/0x280
[  446.550788]  irq_exit+0x17f/0x1c0
[  446.554238]  smp_apic_timer_interrupt+0x1cb/0x760
[  446.560022]  ? smp_reschedule_interrupt+0x109/0x650
[  446.565031]  ? smp_call_function_single_interrupt+0x650/0x650
[  446.570907]  ? interrupt_entry+0xb5/0xc0
[  446.574964]  ? trace_hardirqs_off_caller+0xbb/0x310
[  446.579981]  ? trace_hardirqs_off_caller+0xbb/0x310
[  446.584994]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  446.589828]  ? trace_hardirqs_on_caller+0x310/0x310
[  446.594833]  ? trace_hardirqs_on_caller+0x310/0x310
[  446.599840]  ? task_prio+0x50/0x50
[  446.603373]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.608905]  ? check_preemption_disabled+0x48/0x280
[  446.613918]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  446.618762]  apic_timer_interrupt+0xf/0x20
[  446.622980]  </IRQ>
[  446.625215] RIP: 0010:dump_stack+0x358/0x39d
[  446.629696] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  446.648589] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  446.656315] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  446.664351] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  446.671615] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  446.678873] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  446.686136] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  446.693412]  ? dump_stack+0x34f/0x39d
[  446.697222]  ? dump_stack_print_info.cold.1+0x20/0x20
[  446.702412]  ? mark_held_locks+0x130/0x130
[  446.706636]  ? mark_held_locks+0x130/0x130
[  446.710870]  dump_header+0x27b/0xf72
[  446.714582]  ? pagefault_out_of_memory+0x197/0x197
[  446.719507]  ? __lock_acquire+0x62f/0x4c20
[  446.723735]  ? percpu_ref_get_many+0x240/0x240
[  446.728310]  ? print_usage_bug+0xc0/0xc0
[  446.732367]  ? zap_class+0x640/0x640
[  446.736076]  ? print_usage_bug+0xc0/0xc0
[  446.740122]  ? print_usage_bug+0xc0/0xc0
[  446.744172]  ? zap_class+0x640/0x640
[  446.747885]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.753415]  ? find_held_lock+0x36/0x1c0
[  446.758208]  ? mark_held_locks+0xc7/0x130
[  446.762351]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  446.767441]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  446.772536]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  446.777115]  ? trace_hardirqs_on+0xbd/0x310
[  446.781434]  ? kasan_check_read+0x11/0x20
[  446.785571]  ? ___ratelimit+0x3b4/0x672
[  446.789532]  ? trace_hardirqs_off_caller+0x310/0x310
[  446.794625]  ? trace_hardirqs_on+0x310/0x310
[  446.799021]  ? lock_downgrade+0x900/0x900
[  446.803169]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  446.808268]  ? ___ratelimit+0x3b9/0x672
[  446.812235]  ? idr_get_free+0xf70/0xf70
[  446.816202]  ? find_held_lock+0x36/0x1c0
[  446.820266]  oom_kill_process.cold.27+0x10/0x903
[  446.825032]  ? zap_class+0x640/0x640
[  446.828934]  ? check_preemption_disabled+0x48/0x280
[  446.833949]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  446.838865]  ? kasan_check_read+0x11/0x20
[  446.843001]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.848271]  ? oom_evaluate_task+0x540/0x540
[  446.852688]  ? find_held_lock+0x36/0x1c0
[  446.857269]  ? out_of_memory+0x974/0x1430
[  446.861411]  ? lock_downgrade+0x900/0x900
[  446.865550]  ? check_preemption_disabled+0x48/0x280
[  446.870559]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  446.875476]  ? kasan_check_read+0x11/0x20
[  446.879617]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.884882]  ? rcu_softirq_qs+0x20/0x20
[  446.888851]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.894376]  ? oom_evaluate_task+0x302/0x540
[  446.898778]  out_of_memory+0xa84/0x1430
[  446.902749]  ? oom_killer_disable+0x3a0/0x3a0
[  446.907236]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  446.912160]  ? __ww_mutex_check_waiters+0x160/0x160
[  446.917192]  __alloc_pages_slowpath+0x2354/0x2e10
[  446.922077]  ? warn_alloc+0x120/0x120
[  446.925875]  ? mark_held_locks+0x130/0x130
[  446.930107]  ? find_get_entry+0xaae/0x1120
[  446.934343]  ? filemap_map_pages+0x1a20/0x1a20
[  446.938928]  ? zap_class+0x640/0x640
[  446.942642]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.948172]  ? check_preemption_disabled+0x48/0x280
[  446.953193]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.959487]  ? should_fail+0x22d/0xd01
[  446.963373]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  446.968474]  ? zap_class+0x640/0x640
[  446.972224]  ? __lock_is_held+0xb5/0x140
[  446.976291]  ? mark_held_locks+0x130/0x130
[  446.980520]  ? lock_release+0xa00/0xa00
[  446.984486]  ? perf_trace_sched_process_exec+0x860/0x860
[  446.989928]  ? xa_load+0x2ba/0x460
[  446.993465]  ? lock_downgrade+0x900/0x900
[  446.997619]  ? __might_sleep+0x95/0x190
[  447.001588]  __alloc_pages_nodemask+0xa80/0xde0
[  447.006373]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  447.011381]  ? __page_cache_alloc+0x191/0x5c0
[  447.015868]  ? xa_load+0x2e1/0x460
[  447.019406]  ? xa_clear_mark+0x40/0x40
[  447.023288]  ? zap_class+0x640/0x640
[  447.027000]  ? zap_class+0x640/0x640
[  447.030704]  ? zap_class+0x640/0x640
[  447.034409]  ? __do_page_cache_readahead+0x663/0x810
[  447.039505]  ? find_held_lock+0x36/0x1c0
[  447.043562]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  447.049091]  alloc_pages_current+0x173/0x350
[  447.053491]  __page_cache_alloc+0x38c/0x5c0
[  447.058608]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  447.063528]  ? kasan_check_read+0x11/0x20
[  447.067668]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  447.072944]  ? generic_perform_write+0x6a0/0x6a0
[  447.077705]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.083237]  ? check_preemption_disabled+0x48/0x280
[  447.088256]  filemap_fault+0x1595/0x25f0
[  447.092324]  ? __lock_page_or_retry+0xa00/0xa00
[  447.096989]  ? mark_held_locks+0x130/0x130
[  447.101237]  ? filemap_map_pages+0xd6b/0x1a20
[  447.105729]  ? lock_downgrade+0x900/0x900
[  447.109871]  ? check_preemption_disabled+0x48/0x280
[  447.114886]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  447.119805]  ? kasan_check_read+0x11/0x20
[  447.123948]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  447.129220]  ? rcu_softirq_qs+0x20/0x20
[  447.133202]  ? filemap_map_pages+0xd92/0x1a20
[  447.137704]  ? find_get_entries_tag+0x1400/0x1400
[  447.142553]  ? debug_object_destroy+0x2b0/0x2b0
[  447.147219]  ? lock_pi_update_atomic+0x150/0x150
[  447.151983]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.158540]  ? lock_acquire+0x1ed/0x520
[  447.162594]  ? ext4_filemap_fault+0x7a/0xad
[  447.166913]  ? lock_release+0xa00/0xa00
[  447.170881]  ? perf_trace_sched_process_exec+0x860/0x860
[  447.176322]  ? print_usage_bug+0xc0/0xc0
[  447.180382]  ? print_usage_bug+0xc0/0xc0
[  447.184447]  ? down_read+0x8d/0x120
[  447.188063]  ? ext4_filemap_fault+0x7a/0xad
[  447.192378]  ? __down_interruptible+0x700/0x700
[  447.197057]  ext4_filemap_fault+0x82/0xad
[  447.201203]  __do_fault+0x100/0x6b0
[  447.204824]  ? pmd_devmap_trans_unstable+0x220/0x220
[  447.209925]  ? mark_held_locks+0x130/0x130
[  447.214166]  ? mark_held_locks+0x130/0x130
[  447.218391]  ? do_raw_spin_trylock+0x270/0x270
[  447.222970]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.228528]  __handle_mm_fault+0x3ea0/0x5be0
[  447.232926]  ? perf_trace_lock+0x7a0/0x7a0
[  447.237169]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  447.242010]  ? __switch_to_asm+0x34/0x70
[  447.246067]  ? __switch_to_asm+0x34/0x70
[  447.250134]  ? zap_class+0x640/0x640
[  447.253844]  ? zap_class+0x640/0x640
[  447.258503]  ? __x64_sys_futex+0x53e/0x6a0
[  447.262749]  ? find_held_lock+0x36/0x1c0
[  447.266809]  ? handle_mm_fault+0x42a/0xc70
[  447.271032]  ? lock_downgrade+0x900/0x900
[  447.275176]  ? check_preemption_disabled+0x48/0x280
[  447.280194]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  447.285145]  ? kasan_check_read+0x11/0x20
[  447.289297]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  447.294568]  ? rcu_softirq_qs+0x20/0x20
[  447.298534]  ? trace_hardirqs_off_caller+0x310/0x310
[  447.303628]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.309166]  ? check_preemption_disabled+0x48/0x280
[  447.314185]  handle_mm_fault+0x54f/0xc70
[  447.318259]  ? __handle_mm_fault+0x5be0/0x5be0
[  447.322841]  ? find_vma+0x34/0x190
[  447.326380]  __do_page_fault+0x5e8/0xe60
[  447.330436]  ? trace_hardirqs_off+0xb8/0x310
[  447.334843]  do_page_fault+0xf2/0x7e0
[  447.338636]  ? vmalloc_sync_all+0x30/0x30
[  447.342779]  ? error_entry+0x70/0xd0
[  447.346485]  ? trace_hardirqs_off_caller+0xbb/0x310
[  447.351490]  ? trace_hardirqs_on_caller+0xc0/0x310
[  447.357190]  ? syscall_return_slowpath+0x5e0/0x5e0
[  447.362111]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  447.366950]  ? trace_hardirqs_on_caller+0x310/0x310
[  447.371954]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  447.377396]  ? prepare_exit_to_usermode+0x291/0x3b0
[  447.382401]  ? page_fault+0x8/0x30
[  447.385940]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  447.390776]  ? page_fault+0x8/0x30
[  447.394310]  page_fault+0x1e/0x30
[  447.397752] RIP: 0033:0x45ddf3
[  447.400954] Code: Bad RIP value.
[  447.404307] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  447.409675] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  447.416935] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  447.424194] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  447.431456] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  447.438719] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  447.446014] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  447.446018] warn_alloc_show_mem: 1 callbacks suppressed
[  447.446024] Mem-Info:
[  447.452762] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  447.459121] active_anon:54141 inactive_anon:292 isolated_anon:0
[  447.459121]  active_file:12 inactive_file:13 isolated_file:0
[  447.459121]  unevictable:0 dirty:0 writeback:0 unstable:0
[  447.459121]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  447.459121]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  447.459121]  free:13705 free_pcp:178 free_cma:0
[  447.461489] Call Trace:
[  447.470860] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  447.503703]  dump_stack+0x244/0x39d
[  447.506255] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  447.533913]  ? dump_stack_print_info.cold.1+0x20/0x20
[  447.537504] lowmem_reserve[]: 0 2818 6321 6321
[  447.563895]  warn_alloc.cold.116+0xb7/0x1bd
[  447.569046] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  447.573614]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  447.577906] lowmem_reserve[]: 0 0 3503 3503
[  447.605393]  ? lock_downgrade+0x900/0x900
[  447.610204] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  447.614518]  ? trace_hardirqs_off+0xb8/0x310
[  447.618632] lowmem_reserve[]: 0 0 0 0
[  447.647594]  ? trace_hardirqs_off+0xb8/0x310
[  447.651969] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  447.655760]  __alloc_pages_slowpath+0x26e8/0x2e10
[  447.661068] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  447.674703]  ? warn_alloc+0x120/0x120
[  447.679493] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  447.694742]  ? warn_alloc+0x120/0x120
[  447.698515] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  447.712713]  ? warn_alloc+0x120/0x120
[  447.716484] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  447.725298]  ? trace_hardirqs_off+0xb8/0x310
[  447.729065] 366 total pagecache pages
[  447.737624]  ? print_usage_bug+0xc0/0xc0
[  447.742008] 0 pages in swap cache
[  447.745802]  ? print_usage_bug+0xc0/0xc0
[  447.749831] Swap cache stats: add 0, delete 0, find 0/0
[  447.753265]  ? __lock_acquire+0x62f/0x4c20
[  447.758537] Free swap  = 0kB
[  447.758545] Total swap = 0kB
[  447.763900]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.768102] 1965979 pages RAM
[  447.771110]  ? should_fail+0x22d/0xd01
[  447.774107] 0 pages HighMem/MovableOnly
[  447.779629]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  447.782698] 342854 pages reserved
[  447.782705] 0 pages cma reserved
[  447.786576]  ? __lock_acquire+0x62f/0x4c20
[  447.790574] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  447.795606]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  447.795617]  ? __lock_acquire+0x62f/0x4c20
[  447.795630]  ? should_fail+0x22d/0xd01
[  447.799111] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  447.802422]  ? mark_held_locks+0x130/0x130
[  447.806634] syz-fuzzer cpuset=/ mems_allowed=0
[  447.813113]  ? mark_held_locks+0x130/0x130
[  447.849468]  ? zap_class+0x640/0x640
[  447.853173]  ? ret_from_fork+0x3a/0x50
[  447.857428]  ? __lock_acquire+0x62f/0x4c20
[  447.861658]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.867189]  ? check_preemption_disabled+0x48/0x280
[  447.872203]  ? __lock_is_held+0xb5/0x140
[  447.876259]  __alloc_pages_nodemask+0xa80/0xde0
[  447.880922]  ? zap_class+0x640/0x640
[  447.884715]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  447.889731]  ? find_held_lock+0x36/0x1c0
[  447.893790]  ? ____cache_alloc_node+0x1c7/0x1e0
[  447.898456]  ? lock_downgrade+0x900/0x900
[  447.902603]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.908147]  cache_grow_begin+0xa5/0x8c0
[  447.912202]  ? do_raw_spin_unlock+0xa7/0x330
[  447.916627]  fallback_alloc+0x204/0x2e0
[  447.920600]  ____cache_alloc_node+0x1c7/0x1e0
[  447.925093]  kmem_cache_alloc_node+0xe3/0x730
[  447.929716]  ? mark_held_locks+0xc7/0x130
[  447.933867]  __alloc_skb+0x119/0x770
[  447.937580]  ? netdev_alloc_frag+0x1f0/0x1f0
[  447.941983]  ? do_raw_spin_trylock+0x270/0x270
[  447.946573]  ? kmem_cache_alloc_trace+0x353/0x750
[  447.951408]  ? queue_work_on+0x12c/0x1e0
[  447.955471]  ? switchdev_port_obj_del+0xdc/0x440
[  447.960510]  ? switchdev_trans_item_enqueue+0x260/0x260
[  447.965875]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  447.970892]  __br_mdb_notify+0x4ff/0x15d0
[  447.975032]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  447.980148]  ? __br_mdb_add+0x7f0/0x7f0
[  447.984131]  ? mark_held_locks+0x130/0x130
[  447.988365]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  447.993467]  ? debug_object_assert_init+0x368/0x4b0
[  447.998483]  ? debug_object_init_on_stack+0x20/0x20
[  448.003494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.009034]  br_mdb_notify+0x310/0x410
[  448.012914]  ? br_mdb_dump+0x27b0/0x27b0
[  448.016976]  br_multicast_del_pg+0x3df/0x790
[  448.021382]  ? br_mdb_ip_get+0x940/0x940
[  448.025436]  ? rwlock_bug.part.2+0x90/0x90
[  448.029667]  ? __lock_is_held+0xb5/0x140
[  448.033732]  br_multicast_port_group_expired+0x189/0x1e0
[  448.039174]  call_timer_fn+0x272/0x920
[  448.043072]  ? br_multicast_del_pg+0x790/0x790
[  448.047644]  ? process_timeout+0x40/0x40
[  448.051700]  ? __run_timers+0x7da/0xc70
[  448.055666]  ? _raw_spin_unlock_irq+0x27/0x80
[  448.060493]  ? _raw_spin_unlock_irq+0x27/0x80
[  448.064999]  ? br_multicast_del_pg+0x790/0x790
[  448.069574]  ? lockdep_hardirqs_on+0x296/0x5b0
[  448.074149]  ? trace_hardirqs_on+0xbd/0x310
[  448.078460]  ? kasan_check_read+0x11/0x20
[  448.082599]  ? __run_timers+0x7da/0xc70
[  448.086566]  ? trace_hardirqs_off_caller+0x310/0x310
[  448.091664]  ? br_multicast_del_pg+0x790/0x790
[  448.096242]  ? br_multicast_del_pg+0x790/0x790
[  448.100811]  __run_timers+0x7e5/0xc70
[  448.104609]  ? timer_fixup_init+0x70/0x70
[  448.108748]  ? _raw_spin_unlock_irq+0x27/0x80
[  448.113233]  ? _raw_spin_unlock_irq+0x27/0x80
[  448.117720]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  448.122287]  ? trace_hardirqs_on+0xbd/0x310
[  448.126611]  ? kasan_check_read+0x11/0x20
[  448.130749]  ? finish_task_switch+0x1f4/0x910
[  448.135245]  ? trace_hardirqs_off_caller+0x310/0x310
[  448.140335]  ? compat_start_thread+0x80/0x80
[  448.144754]  ? pvclock_read_flags+0x160/0x160
[  448.149242]  ? __switch_to_asm+0x34/0x70
[  448.153297]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.159138]  ? check_preemption_disabled+0x48/0x280
[  448.164159]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  448.169690]  ? rcu_pm_notify+0xc0/0xc0
[  448.173571]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.179107]  ? check_preemption_disabled+0x48/0x280
[  448.184132]  run_timer_softirq+0x52/0xb0
[  448.188183]  ? rcu_read_lock_sched_held+0x14f/0x180
[  448.193194]  __do_softirq+0x308/0xb7e
[  448.196993]  ? trace_hardirqs_on_caller+0xc0/0x310
[  448.201933]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  448.207033]  ? trace_hardirqs_on+0x310/0x310
[  448.211441]  ? schedule+0x108/0x460
[  448.215074]  ? trace_hardirqs_off+0xb8/0x310
[  448.219488]  ? smpboot_thread_fn+0x68b/0xa00
[  448.223888]  ? trace_hardirqs_on+0x310/0x310
[  448.228293]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.233820]  ? check_preemption_disabled+0x48/0x280
[  448.238832]  ? takeover_tasklets+0xa90/0xa90
[  448.243235]  run_ksoftirqd+0x5e/0x100
[  448.247024]  smpboot_thread_fn+0x68b/0xa00
[  448.251250]  ? sort_range+0x30/0x30
[  448.254872]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  448.260316]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.265846]  ? __kthread_parkme+0xfb/0x1a0
[  448.270094]  ? sort_range+0x30/0x30
[  448.273712]  kthread+0x35a/0x440
[  448.277071]  ? kthread_stop+0x900/0x900
[  448.281051]  ret_from_fork+0x3a/0x50
[  448.284795] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  448.284925] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  448.291721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  448.302005] ksoftirqd/0 cpuset=/ mems_allowed=0
[  448.311341] Call Trace:
[  448.318573]  <IRQ>
[  448.320724]  dump_stack+0x244/0x39d
[  448.324393]  ? dump_stack_print_info.cold.1+0x20/0x20
[  448.329586]  warn_alloc.cold.116+0xb7/0x1bd
[  448.333904]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  448.338744]  ? lock_downgrade+0x900/0x900
[  448.342890]  ? trace_hardirqs_off+0xb8/0x310
[  448.347298]  ? trace_hardirqs_off+0xb8/0x310
[  448.351710]  __alloc_pages_slowpath+0x26e8/0x2e10
[  448.357502]  ? warn_alloc+0x120/0x120
[  448.361387]  ? print_usage_bug+0xc0/0xc0
[  448.365458]  ? warn_alloc+0x120/0x120
[  448.369252]  ? warn_alloc+0x120/0x120
[  448.373042]  ? print_usage_bug+0xc0/0xc0
[  448.377101]  ? print_usage_bug+0xc0/0xc0
[  448.381158]  ? __lock_acquire+0x62f/0x4c20
[  448.385395]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.390930]  ? should_fail+0x22d/0xd01
[  448.394813]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  448.399906]  ? __lock_acquire+0x62f/0x4c20
[  448.404142]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  448.409238]  ? __lock_acquire+0x62f/0x4c20
[  448.413467]  ? should_fail+0x22d/0xd01
[  448.417348]  ? find_held_lock+0x36/0x1c0
[  448.421412]  ? mark_held_locks+0x130/0x130
[  448.425643]  ? mark_held_locks+0x130/0x130
[  448.429871]  ? zap_class+0x640/0x640
[  448.433577]  ? zap_class+0x640/0x640
[  448.437284]  ? print_usage_bug+0xc0/0xc0
[  448.441336]  ? do_raw_spin_unlock+0xa7/0x330
[  448.445735]  ? zap_class+0x640/0x640
[  448.449444]  ? print_usage_bug+0xc0/0xc0
[  448.453499]  ? wq_watchdog_touch+0x9c/0xfe
[  448.458254]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.463805]  ? check_preemption_disabled+0x48/0x280
[  448.468820]  ? __lock_is_held+0xb5/0x140
[  448.472889]  __alloc_pages_nodemask+0xa80/0xde0
[  448.477545]  ? zap_class+0x640/0x640
[  448.481264]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  448.486284]  ? find_held_lock+0x36/0x1c0
[  448.490353]  ? ____cache_alloc_node+0x1c7/0x1e0
[  448.495012]  ? lock_downgrade+0x900/0x900
[  448.499159]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.504697]  cache_grow_begin+0xa5/0x8c0
[  448.508750]  ? do_raw_spin_unlock+0xa7/0x330
[  448.513161]  fallback_alloc+0x204/0x2e0
[  448.517135]  ____cache_alloc_node+0x1c7/0x1e0
[  448.521630]  kmem_cache_alloc_node+0xe3/0x730
[  448.526118]  ? ipv6_get_ifaddr+0x42e/0x620
[  448.530376]  __alloc_skb+0x119/0x770
[  448.534091]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  448.539384]  ? netdev_alloc_frag+0x1f0/0x1f0
[  448.543785]  ? lock_downgrade+0x900/0x900
[  448.547929]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.553460]  ? refcount_sub_and_test_checked+0x203/0x310
[  448.559645]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  448.565100]  ? addrconf_rs_timer+0x690/0x690
[  448.569529]  ndisc_alloc_skb+0x144/0x340
[  448.573594]  ndisc_send_rs+0x331/0x6e0
[  448.577479]  addrconf_rs_timer+0x314/0x690
[  448.581710]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  448.585958]  call_timer_fn+0x272/0x920
[  448.589837]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  448.594065]  ? process_timeout+0x40/0x40
[  448.598135]  ? mark_held_locks+0xc7/0x130
[  448.602277]  ? _raw_spin_unlock_irq+0x27/0x80
[  448.606766]  ? _raw_spin_unlock_irq+0x27/0x80
[  448.611252]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  448.615492]  ? lockdep_hardirqs_on+0x296/0x5b0
[  448.620075]  ? trace_hardirqs_on+0xbd/0x310
[  448.624385]  ? kasan_check_read+0x11/0x20
[  448.628522]  ? __run_timers+0x7da/0xc70
[  448.632492]  ? trace_hardirqs_off_caller+0x310/0x310
[  448.637593]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  448.641825]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  448.646054]  __run_timers+0x7e5/0xc70
[  448.649870]  ? timer_fixup_init+0x70/0x70
[  448.654013]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  448.659979]  ? zap_class+0x640/0x640
[  448.663689]  ? print_usage_bug+0xc0/0xc0
[  448.667769]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  448.672975]  ? find_held_lock+0x36/0x1c0
[  448.677035]  ? zap_class+0x640/0x640
[  448.680749]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.686276]  ? check_preemption_disabled+0x48/0x280
[  448.691303]  ? __lock_is_held+0xb5/0x140
[  448.695355]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.700901]  ? check_preemption_disabled+0x48/0x280
[  448.705914]  run_timer_softirq+0x52/0xb0
[  448.709969]  ? rcu_read_lock_sched_held+0x14f/0x180
[  448.714974]  __do_softirq+0x308/0xb7e
[  448.718771]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  448.723256]  ? lock_downgrade+0x900/0x900
[  448.727405]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  448.732506]  ? pvclock_read_flags+0x160/0x160
[  448.737000]  ? lapic_next_event+0x5a/0x90
[  448.741137]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.746667]  ? kvm_clock_read+0x18/0x30
[  448.750638]  ? kvm_sched_clock_read+0x9/0x20
[  448.755050]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.760889]  ? check_preemption_disabled+0x48/0x280
[  448.765920]  irq_exit+0x17f/0x1c0
[  448.769365]  smp_apic_timer_interrupt+0x1cb/0x760
[  448.774194]  ? smp_reschedule_interrupt+0x109/0x650
[  448.779204]  ? smp_call_function_single_interrupt+0x650/0x650
[  448.785083]  ? interrupt_entry+0xb5/0xc0
[  448.789136]  ? trace_hardirqs_off_caller+0xbb/0x310
[  448.794155]  ? trace_hardirqs_off_caller+0xbb/0x310
[  448.799167]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  448.803999]  ? trace_hardirqs_on_caller+0x310/0x310
[  448.809006]  ? trace_hardirqs_on_caller+0x310/0x310
[  448.814013]  ? task_prio+0x50/0x50
[  448.817545]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.823108]  ? check_preemption_disabled+0x48/0x280
[  448.828121]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  448.832960]  apic_timer_interrupt+0xf/0x20
[  448.837183]  </IRQ>
[  448.839418] RIP: 0010:dump_stack+0x358/0x39d
[  448.843819] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  448.863035] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  448.870739] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  448.877997] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  448.885258] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  448.892521] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  448.899781] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  448.907069]  ? dump_stack+0x34f/0x39d
[  448.910875]  ? dump_stack_print_info.cold.1+0x20/0x20
[  448.916066]  ? mark_held_locks+0x130/0x130
[  448.920291]  ? mark_held_locks+0x130/0x130
[  448.924521]  dump_header+0x27b/0xf72
[  448.928233]  ? pagefault_out_of_memory+0x197/0x197
[  448.933162]  ? __lock_acquire+0x62f/0x4c20
[  448.937386]  ? percpu_ref_get_many+0x240/0x240
[  448.941956]  ? print_usage_bug+0xc0/0xc0
[  448.946012]  ? zap_class+0x640/0x640
[  448.949741]  ? print_usage_bug+0xc0/0xc0
[  448.953790]  ? print_usage_bug+0xc0/0xc0
[  448.958345]  ? zap_class+0x640/0x640
[  448.962058]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.967599]  ? find_held_lock+0x36/0x1c0
[  448.971698]  ? mark_held_locks+0xc7/0x130
[  448.975836]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  448.981016]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  448.986117]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  448.990695]  ? trace_hardirqs_on+0xbd/0x310
[  448.995009]  ? kasan_check_read+0x11/0x20
[  448.999149]  ? ___ratelimit+0x3b4/0x672
[  449.003114]  ? trace_hardirqs_off_caller+0x310/0x310
[  449.008209]  ? trace_hardirqs_on+0x310/0x310
[  449.012617]  ? lock_downgrade+0x900/0x900
[  449.016762]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  449.021855]  ? ___ratelimit+0x3b9/0x672
[  449.025821]  ? idr_get_free+0xf70/0xf70
[  449.029789]  ? find_held_lock+0x36/0x1c0
[  449.033849]  oom_kill_process.cold.27+0x10/0x903
[  449.038594]  ? zap_class+0x640/0x640
[  449.042300]  ? check_preemption_disabled+0x48/0x280
[  449.047305]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  449.052218]  ? kasan_check_read+0x11/0x20
[  449.057353]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  449.062621]  ? oom_evaluate_task+0x540/0x540
[  449.067025]  ? find_held_lock+0x36/0x1c0
[  449.071095]  ? out_of_memory+0x974/0x1430
[  449.075238]  ? lock_downgrade+0x900/0x900
[  449.079381]  ? check_preemption_disabled+0x48/0x280
[  449.084391]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  449.089314]  ? kasan_check_read+0x11/0x20
[  449.093455]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  449.098727]  ? rcu_softirq_qs+0x20/0x20
[  449.102695]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  449.108310]  ? oom_evaluate_task+0x302/0x540
[  449.112717]  out_of_memory+0xa84/0x1430
[  449.116709]  ? oom_killer_disable+0x3a0/0x3a0
[  449.121213]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  449.126137]  ? __ww_mutex_check_waiters+0x160/0x160
[  449.131155]  __alloc_pages_slowpath+0x2354/0x2e10
[  449.136015]  ? warn_alloc+0x120/0x120
[  449.139814]  ? mark_held_locks+0x130/0x130
[  449.144050]  ? find_get_entry+0xaae/0x1120
[  449.148289]  ? filemap_map_pages+0x1a20/0x1a20
[  449.152864]  ? zap_class+0x640/0x640
[  449.157388]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.162919]  ? check_preemption_disabled+0x48/0x280
[  449.167938]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  449.173475]  ? should_fail+0x22d/0xd01
[  449.177361]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  449.182457]  ? zap_class+0x640/0x640
[  449.186187]  ? __lock_is_held+0xb5/0x140
[  449.190250]  ? mark_held_locks+0x130/0x130
[  449.194481]  ? lock_release+0xa00/0xa00
[  449.198459]  ? perf_trace_sched_process_exec+0x860/0x860
[  449.203903]  ? xa_load+0x2ba/0x460
[  449.207438]  ? lock_downgrade+0x900/0x900
[  449.211586]  ? __might_sleep+0x95/0x190
[  449.215566]  __alloc_pages_nodemask+0xa80/0xde0
[  449.220237]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  449.225247]  ? __page_cache_alloc+0x191/0x5c0
[  449.229733]  ? xa_load+0x2e1/0x460
[  449.233267]  ? xa_clear_mark+0x40/0x40
[  449.237149]  ? zap_class+0x640/0x640
[  449.240865]  ? zap_class+0x640/0x640
[  449.244570]  ? zap_class+0x640/0x640
[  449.248275]  ? __do_page_cache_readahead+0x663/0x810
[  449.253376]  ? find_held_lock+0x36/0x1c0
[  449.257903]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  449.263439]  alloc_pages_current+0x173/0x350
[  449.267847]  __page_cache_alloc+0x38c/0x5c0
[  449.272164]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  449.277083]  ? kasan_check_read+0x11/0x20
[  449.281218]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  449.286487]  ? generic_perform_write+0x6a0/0x6a0
[  449.291235]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  449.296767]  ? check_preemption_disabled+0x48/0x280
[  449.301799]  filemap_fault+0x1595/0x25f0
[  449.305875]  ? __lock_page_or_retry+0xa00/0xa00
[  449.310551]  ? mark_held_locks+0x130/0x130
[  449.314792]  ? filemap_map_pages+0xd6b/0x1a20
[  449.319285]  ? lock_downgrade+0x900/0x900
[  449.323428]  ? check_preemption_disabled+0x48/0x280
[  449.328437]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  449.333358]  ? kasan_check_read+0x11/0x20
[  449.337498]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  449.342765]  ? rcu_softirq_qs+0x20/0x20
[  449.346741]  ? filemap_map_pages+0xd92/0x1a20
[  449.351242]  ? find_get_entries_tag+0x1400/0x1400
[  449.356092]  ? debug_object_destroy+0x2b0/0x2b0
[  449.361498]  ? lock_pi_update_atomic+0x150/0x150
[  449.366246]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.371789]  ? lock_acquire+0x1ed/0x520
[  449.375753]  ? ext4_filemap_fault+0x7a/0xad
[  449.380072]  ? lock_release+0xa00/0xa00
[  449.384044]  ? perf_trace_sched_process_exec+0x860/0x860
[  449.389485]  ? print_usage_bug+0xc0/0xc0
[  449.393544]  ? print_usage_bug+0xc0/0xc0
[  449.397606]  ? down_read+0x8d/0x120
[  449.401223]  ? ext4_filemap_fault+0x7a/0xad
[  449.405543]  ? __down_interruptible+0x700/0x700
[  449.410216]  ext4_filemap_fault+0x82/0xad
[  449.414358]  __do_fault+0x100/0x6b0
[  449.417979]  ? pmd_devmap_trans_unstable+0x220/0x220
[  449.423080]  ? mark_held_locks+0x130/0x130
[  449.427326]  ? mark_held_locks+0x130/0x130
[  449.431567]  ? do_raw_spin_trylock+0x270/0x270
[  449.436147]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  449.441678]  __handle_mm_fault+0x3ea0/0x5be0
[  449.446076]  ? perf_trace_lock+0x7a0/0x7a0
[  449.450315]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  449.455155]  ? __switch_to_asm+0x34/0x70
[  449.459978]  ? __switch_to_asm+0x34/0x70
[  449.464063]  ? zap_class+0x640/0x640
[  449.467773]  ? zap_class+0x640/0x640
[  449.471477]  ? __x64_sys_futex+0x53e/0x6a0
[  449.475794]  ? find_held_lock+0x36/0x1c0
[  449.479859]  ? handle_mm_fault+0x42a/0xc70
[  449.484086]  ? lock_downgrade+0x900/0x900
[  449.488229]  ? check_preemption_disabled+0x48/0x280
[  449.493237]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  449.498153]  ? kasan_check_read+0x11/0x20
[  449.502288]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  449.507556]  ? rcu_softirq_qs+0x20/0x20
[  449.511529]  ? trace_hardirqs_off_caller+0x310/0x310
[  449.516630]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  449.522161]  ? check_preemption_disabled+0x48/0x280
[  449.527177]  handle_mm_fault+0x54f/0xc70
[  449.531235]  ? __handle_mm_fault+0x5be0/0x5be0
[  449.535811]  ? find_vma+0x34/0x190
[  449.539349]  __do_page_fault+0x5e8/0xe60
[  449.543401]  ? trace_hardirqs_off+0xb8/0x310
[  449.547814]  do_page_fault+0xf2/0x7e0
[  449.551606]  ? vmalloc_sync_all+0x30/0x30
[  449.555747]  ? error_entry+0x70/0xd0
[  449.560184]  ? trace_hardirqs_off_caller+0xbb/0x310
[  449.565191]  ? trace_hardirqs_on_caller+0xc0/0x310
[  449.570125]  ? syscall_return_slowpath+0x5e0/0x5e0
[  449.575047]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  449.579883]  ? trace_hardirqs_on_caller+0x310/0x310
[  449.584890]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  449.590337]  ? prepare_exit_to_usermode+0x291/0x3b0
[  449.595349]  ? page_fault+0x8/0x30
[  449.598884]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  449.603719]  ? page_fault+0x8/0x30
[  449.607261]  page_fault+0x1e/0x30
[  449.610707] RIP: 0033:0x45ddf3
[  449.613900] Code: Bad RIP value.
[  449.617260] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  449.622612] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  449.629873] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  449.637134] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  449.644397] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  449.651655] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  449.659931] warn_alloc_show_mem: 1 callbacks suppressed
[  449.659940] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  449.659942] Mem-Info:
[  449.659972] active_anon:54141 inactive_anon:292 isolated_anon:0
[  449.659972]  active_file:12 inactive_file:13 isolated_file:0
[  449.659972]  unevictable:0 dirty:0 writeback:0 unstable:0
[  449.659972]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  449.659972]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  449.659972]  free:13705 free_pcp:178 free_cma:0
[  449.665314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  449.672065] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  449.674451] Call Trace:
[  449.707315] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  449.716745]  dump_stack+0x244/0x39d
[  449.744378] lowmem_reserve[]: 0 2818 6321 6321
[  449.746948]  ? dump_stack_print_info.cold.1+0x20/0x20
[  449.774246] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  449.777880]  warn_alloc.cold.116+0xb7/0x1bd
[  449.782413] lowmem_reserve[]: 0 0 3503 3503
[  449.787583]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  449.815049] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  449.819360]  ? lock_downgrade+0x900/0x900
[  449.823644] lowmem_reserve[]: 0 0 0 0
[  449.828495]  ? trace_hardirqs_off+0xb8/0x310
[  449.858420] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  449.862563]  ? trace_hardirqs_off+0xb8/0x310
[  449.866329] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  449.870731]  __alloc_pages_slowpath+0x26e8/0x2e10
[  449.884217] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  449.888635]  ? warn_alloc+0x120/0x120
[  449.903847] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  449.908669]  ? warn_alloc+0x120/0x120
[  449.922853] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  449.926854]  ? warn_alloc+0x120/0x120
[  449.935662] 366 total pagecache pages
[  449.939445]  ? trace_hardirqs_off+0xb8/0x310
[  449.948002] 0 pages in swap cache
[  449.951786]  ? print_usage_bug+0xc0/0xc0
[  449.955558] Swap cache stats: add 0, delete 0, find 0/0
[  449.960292]  ? print_usage_bug+0xc0/0xc0
[  449.963714] Free swap  = 0kB
[  449.967760]  ? __lock_acquire+0x62f/0x4c20
[  449.973087] Total swap = 0kB
[  449.977132]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  449.980116] 1965979 pages RAM
[  449.984334]  ? should_fail+0x22d/0xd01
[  449.987329] 0 pages HighMem/MovableOnly
[  449.992848]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  449.995920] 342854 pages reserved
[  449.999793]  ? __lock_acquire+0x62f/0x4c20
[  450.003736] 0 pages cma reserved
[  450.008822]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  450.012295] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  450.016456]  ? __lock_acquire+0x62f/0x4c20
[  450.016471]  ? should_fail+0x22d/0xd01
[  450.020001] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  450.025017]  ? mark_held_locks+0x130/0x130
[  450.031467] syz-fuzzer cpuset=/ mems_allowed=0
[  450.035686]  ? mark_held_locks+0x130/0x130
[  450.063221]  ? zap_class+0x640/0x640
[  450.066931]  ? ret_from_fork+0x3a/0x50
[  450.070813]  ? __lock_acquire+0x62f/0x4c20
[  450.075040]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.080569]  ? check_preemption_disabled+0x48/0x280
[  450.085585]  ? __lock_is_held+0xb5/0x140
[  450.089649]  __alloc_pages_nodemask+0xa80/0xde0
[  450.094310]  ? zap_class+0x640/0x640
[  450.098021]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  450.103041]  ? find_held_lock+0x36/0x1c0
[  450.107104]  ? ____cache_alloc_node+0x1c7/0x1e0
[  450.111768]  ? lock_downgrade+0x900/0x900
[  450.115916]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.121452]  cache_grow_begin+0xa5/0x8c0
[  450.125504]  ? do_raw_spin_unlock+0xa7/0x330
[  450.129911]  fallback_alloc+0x204/0x2e0
[  450.133882]  ____cache_alloc_node+0x1c7/0x1e0
[  450.138377]  kmem_cache_alloc_node+0xe3/0x730
[  450.142862]  ? mark_held_locks+0xc7/0x130
[  450.147012]  __alloc_skb+0x119/0x770
[  450.150743]  ? netdev_alloc_frag+0x1f0/0x1f0
[  450.155143]  ? do_raw_spin_trylock+0x270/0x270
[  450.160182]  ? kmem_cache_alloc_trace+0x353/0x750
[  450.165022]  ? queue_work_on+0x12c/0x1e0
[  450.169086]  ? switchdev_port_obj_del+0xdc/0x440
[  450.173838]  ? switchdev_trans_item_enqueue+0x260/0x260
[  450.179200]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  450.184314]  __br_mdb_notify+0x4ff/0x15d0
[  450.188455]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  450.193561]  ? __br_mdb_add+0x7f0/0x7f0
[  450.197530]  ? mark_held_locks+0x130/0x130
[  450.201760]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  450.206858]  ? debug_object_assert_init+0x368/0x4b0
[  450.211881]  ? debug_object_init_on_stack+0x20/0x20
[  450.216889]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.222424]  br_mdb_notify+0x310/0x410
[  450.226306]  ? br_mdb_dump+0x27b0/0x27b0
[  450.230467]  br_multicast_del_pg+0x3df/0x790
[  450.234875]  ? br_mdb_ip_get+0x940/0x940
[  450.239115]  ? rwlock_bug.part.2+0x90/0x90
[  450.243343]  ? __lock_is_held+0xb5/0x140
[  450.247406]  br_multicast_port_group_expired+0x189/0x1e0
[  450.252874]  call_timer_fn+0x272/0x920
[  450.257031]  ? br_multicast_del_pg+0x790/0x790
[  450.261604]  ? process_timeout+0x40/0x40
[  450.265665]  ? __run_timers+0x7da/0xc70
[  450.269628]  ? _raw_spin_unlock_irq+0x27/0x80
[  450.274112]  ? _raw_spin_unlock_irq+0x27/0x80
[  450.278599]  ? br_multicast_del_pg+0x790/0x790
[  450.283177]  ? lockdep_hardirqs_on+0x296/0x5b0
[  450.287758]  ? trace_hardirqs_on+0xbd/0x310
[  450.292073]  ? kasan_check_read+0x11/0x20
[  450.296212]  ? __run_timers+0x7da/0xc70
[  450.300181]  ? trace_hardirqs_off_caller+0x310/0x310
[  450.305278]  ? br_multicast_del_pg+0x790/0x790
[  450.309861]  ? br_multicast_del_pg+0x790/0x790
[  450.314434]  __run_timers+0x7e5/0xc70
[  450.318239]  ? timer_fixup_init+0x70/0x70
[  450.322378]  ? _raw_spin_unlock_irq+0x27/0x80
[  450.326864]  ? _raw_spin_unlock_irq+0x27/0x80
[  450.331353]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  450.335928]  ? trace_hardirqs_on+0xbd/0x310
[  450.340256]  ? kasan_check_read+0x11/0x20
[  450.344395]  ? finish_task_switch+0x1f4/0x910
[  450.348879]  ? trace_hardirqs_off_caller+0x310/0x310
[  450.354003]  ? compat_start_thread+0x80/0x80
[  450.358764]  ? pvclock_read_flags+0x160/0x160
[  450.363336]  ? __switch_to_asm+0x34/0x70
[  450.367395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.372926]  ? check_preemption_disabled+0x48/0x280
[  450.377950]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  450.383512]  ? rcu_pm_notify+0xc0/0xc0
[  450.387410]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.392940]  ? check_preemption_disabled+0x48/0x280
[  450.397974]  run_timer_softirq+0x52/0xb0
[  450.402031]  ? rcu_read_lock_sched_held+0x14f/0x180
[  450.407041]  __do_softirq+0x308/0xb7e
[  450.410838]  ? trace_hardirqs_on_caller+0xc0/0x310
[  450.415764]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  450.420862]  ? trace_hardirqs_on+0x310/0x310
[  450.425271]  ? schedule+0x108/0x460
[  450.428918]  ? trace_hardirqs_off+0xb8/0x310
[  450.433329]  ? smpboot_thread_fn+0x68b/0xa00
[  450.437728]  ? trace_hardirqs_on+0x310/0x310
[  450.442130]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.447660]  ? check_preemption_disabled+0x48/0x280
[  450.452673]  ? takeover_tasklets+0xa90/0xa90
[  450.457407]  run_ksoftirqd+0x5e/0x100
[  450.461203]  smpboot_thread_fn+0x68b/0xa00
[  450.465436]  ? sort_range+0x30/0x30
[  450.469071]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  450.474170]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.479698]  ? __kthread_parkme+0xfb/0x1a0
[  450.483937]  ? sort_range+0x30/0x30
[  450.487569]  kthread+0x35a/0x440
[  450.490928]  ? kthread_stop+0x900/0x900
[  450.494902]  ret_from_fork+0x3a/0x50
[  450.498627] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  450.498758] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  450.505550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  450.515834] ksoftirqd/0 cpuset=/ mems_allowed=0
[  450.525169] Call Trace:
[  450.532401]  <IRQ>
[  450.534551]  dump_stack+0x244/0x39d
[  450.538179]  ? dump_stack_print_info.cold.1+0x20/0x20
[  450.543378]  warn_alloc.cold.116+0xb7/0x1bd
[  450.547696]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  450.552535]  ? lock_downgrade+0x900/0x900
[  450.557604]  ? trace_hardirqs_off+0xb8/0x310
[  450.562011]  ? trace_hardirqs_off+0xb8/0x310
[  450.566510]  __alloc_pages_slowpath+0x26e8/0x2e10
[  450.571372]  ? warn_alloc+0x120/0x120
[  450.575171]  ? print_usage_bug+0xc0/0xc0
[  450.579228]  ? warn_alloc+0x120/0x120
[  450.583029]  ? warn_alloc+0x120/0x120
[  450.586828]  ? print_usage_bug+0xc0/0xc0
[  450.590890]  ? print_usage_bug+0xc0/0xc0
[  450.594952]  ? __lock_acquire+0x62f/0x4c20
[  450.599186]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.604729]  ? should_fail+0x22d/0xd01
[  450.608627]  ? __lock_acquire+0x62f/0x4c20
[  450.612856]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  450.617964]  ? __lock_acquire+0x62f/0x4c20
[  450.622202]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  450.627298]  ? __lock_acquire+0x62f/0x4c20
[  450.631523]  ? should_fail+0x22d/0xd01
[  450.635412]  ? mark_held_locks+0x130/0x130
[  450.639643]  ? mark_held_locks+0x130/0x130
[  450.643867]  ? zap_class+0x640/0x640
[  450.647582]  ? zap_class+0x640/0x640
[  450.651288]  ? print_usage_bug+0xc0/0xc0
[  450.655339]  ? do_raw_spin_unlock+0xa7/0x330
[  450.660063]  ? zap_class+0x640/0x640
[  450.663770]  ? print_usage_bug+0xc0/0xc0
[  450.667823]  ? wq_watchdog_touch+0x9c/0xfe
[  450.672055]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.677585]  ? check_preemption_disabled+0x48/0x280
[  450.682602]  ? __lock_is_held+0xb5/0x140
[  450.686658]  __alloc_pages_nodemask+0xa80/0xde0
[  450.691317]  ? zap_class+0x640/0x640
[  450.695029]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  450.700047]  ? find_held_lock+0x36/0x1c0
[  450.704107]  ? ____cache_alloc_node+0x1c7/0x1e0
[  450.708766]  ? lock_downgrade+0x900/0x900
[  450.712915]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.718458]  cache_grow_begin+0xa5/0x8c0
[  450.722509]  ? do_raw_spin_unlock+0xa7/0x330
[  450.726922]  fallback_alloc+0x204/0x2e0
[  450.730906]  ____cache_alloc_node+0x1c7/0x1e0
[  450.735427]  kmem_cache_alloc_node+0xe3/0x730
[  450.739918]  ? ipv6_get_ifaddr+0x42e/0x620
[  450.744162]  __alloc_skb+0x119/0x770
[  450.747869]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  450.753156]  ? netdev_alloc_frag+0x1f0/0x1f0
[  450.758060]  ? lock_downgrade+0x900/0x900
[  450.762205]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.767732]  ? refcount_sub_and_test_checked+0x203/0x310
[  450.773178]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  450.778617]  ? addrconf_rs_timer+0x690/0x690
[  450.783025]  ndisc_alloc_skb+0x144/0x340
[  450.787084]  ndisc_send_rs+0x331/0x6e0
[  450.790965]  addrconf_rs_timer+0x314/0x690
[  450.795211]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.799451]  call_timer_fn+0x272/0x920
[  450.803337]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.807562]  ? process_timeout+0x40/0x40
[  450.811624]  ? mark_held_locks+0xc7/0x130
[  450.815765]  ? _raw_spin_unlock_irq+0x27/0x80
[  450.820254]  ? _raw_spin_unlock_irq+0x27/0x80
[  450.824740]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.828984]  ? lockdep_hardirqs_on+0x296/0x5b0
[  450.833559]  ? trace_hardirqs_on+0xbd/0x310
[  450.837874]  ? kasan_check_read+0x11/0x20
[  450.842010]  ? __run_timers+0x7da/0xc70
[  450.845975]  ? trace_hardirqs_off_caller+0x310/0x310
[  450.851078]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.855303]  __run_timers+0x7e5/0xc70
[  450.859622]  ? timer_fixup_init+0x70/0x70
[  450.863762]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  450.868769]  ? zap_class+0x640/0x640
[  450.872480]  ? print_usage_bug+0xc0/0xc0
[  450.876534]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  450.881720]  ? find_held_lock+0x36/0x1c0
[  450.885781]  ? zap_class+0x640/0x640
[  450.889494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.895026]  ? check_preemption_disabled+0x48/0x280
[  450.900047]  ? __lock_is_held+0xb5/0x140
[  450.904113]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.909642]  ? check_preemption_disabled+0x48/0x280
[  450.914668]  run_timer_softirq+0x52/0xb0
[  450.918728]  ? rcu_read_lock_sched_held+0x14f/0x180
[  450.923735]  __do_softirq+0x308/0xb7e
[  450.927531]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  450.932017]  ? lock_downgrade+0x900/0x900
[  450.936181]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  450.941286]  ? pvclock_read_flags+0x160/0x160
[  450.945789]  ? lapic_next_event+0x5a/0x90
[  450.949937]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.955473]  ? kvm_clock_read+0x18/0x30
[  450.959728]  ? kvm_sched_clock_read+0x9/0x20
[  450.964137]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.969666]  ? check_preemption_disabled+0x48/0x280
[  450.974680]  irq_exit+0x17f/0x1c0
[  450.978126]  smp_apic_timer_interrupt+0x1cb/0x760
[  450.982961]  ? smp_reschedule_interrupt+0x109/0x650
[  450.987967]  ? smp_call_function_single_interrupt+0x650/0x650
[  450.993856]  ? interrupt_entry+0xb5/0xc0
[  450.997909]  ? trace_hardirqs_off_caller+0xbb/0x310
[  451.002931]  ? trace_hardirqs_off_caller+0xbb/0x310
[  451.007946]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  451.012784]  ? trace_hardirqs_on_caller+0x310/0x310
[  451.017789]  ? trace_hardirqs_on_caller+0x310/0x310
[  451.022799]  ? task_prio+0x50/0x50
[  451.026332]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.031863]  ? check_preemption_disabled+0x48/0x280
[  451.036877]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  451.041715]  apic_timer_interrupt+0xf/0x20
[  451.045934]  </IRQ>
[  451.048168] RIP: 0010:dump_stack+0x358/0x39d
[  451.052572] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  451.072223] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  451.079929] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  451.087188] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  451.094450] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  451.101721] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  451.108977] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  451.116255]  ? dump_stack+0x34f/0x39d
[  451.120062]  ? dump_stack_print_info.cold.1+0x20/0x20
[  451.125246]  ? mark_held_locks+0x130/0x130
[  451.129471]  ? mark_held_locks+0x130/0x130
[  451.133702]  dump_header+0x27b/0xf72
[  451.137418]  ? pagefault_out_of_memory+0x197/0x197
[  451.142351]  ? __lock_acquire+0x62f/0x4c20
[  451.146580]  ? percpu_ref_get_many+0x240/0x240
[  451.151159]  ? print_usage_bug+0xc0/0xc0
[  451.155215]  ? zap_class+0x640/0x640
[  451.159501]  ? print_usage_bug+0xc0/0xc0
[  451.163553]  ? print_usage_bug+0xc0/0xc0
[  451.167610]  ? zap_class+0x640/0x640
[  451.171321]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.176859]  ? find_held_lock+0x36/0x1c0
[  451.180931]  ? mark_held_locks+0xc7/0x130
[  451.185074]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  451.190169]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  451.195266]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  451.199843]  ? trace_hardirqs_on+0xbd/0x310
[  451.204247]  ? kasan_check_read+0x11/0x20
[  451.208385]  ? ___ratelimit+0x3b4/0x672
[  451.212349]  ? trace_hardirqs_off_caller+0x310/0x310
[  451.217454]  ? trace_hardirqs_on+0x310/0x310
[  451.221862]  ? lock_downgrade+0x900/0x900
[  451.226011]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  451.231116]  ? ___ratelimit+0x3b9/0x672
[  451.235090]  ? idr_get_free+0xf70/0xf70
[  451.239056]  ? find_held_lock+0x36/0x1c0
[  451.243117]  oom_kill_process.cold.27+0x10/0x903
[  451.247865]  ? zap_class+0x640/0x640
[  451.251576]  ? check_preemption_disabled+0x48/0x280
[  451.257575]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  451.262494]  ? kasan_check_read+0x11/0x20
[  451.266627]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.271939]  ? oom_evaluate_task+0x540/0x540
[  451.276344]  ? find_held_lock+0x36/0x1c0
[  451.280399]  ? out_of_memory+0x974/0x1430
[  451.284544]  ? lock_downgrade+0x900/0x900
[  451.288682]  ? check_preemption_disabled+0x48/0x280
[  451.293691]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  451.298632]  ? kasan_check_read+0x11/0x20
[  451.302771]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.308129]  ? rcu_softirq_qs+0x20/0x20
[  451.312105]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.317631]  ? oom_evaluate_task+0x302/0x540
[  451.322036]  out_of_memory+0xa84/0x1430
[  451.326017]  ? oom_killer_disable+0x3a0/0x3a0
[  451.330505]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  451.335433]  ? __ww_mutex_check_waiters+0x160/0x160
[  451.340452]  __alloc_pages_slowpath+0x2354/0x2e10
[  451.345316]  ? warn_alloc+0x120/0x120
[  451.349113]  ? mark_held_locks+0x130/0x130
[  451.353342]  ? find_get_entry+0xaae/0x1120
[  451.358507]  ? filemap_map_pages+0x1a20/0x1a20
[  451.363091]  ? zap_class+0x640/0x640
[  451.366806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.372336]  ? check_preemption_disabled+0x48/0x280
[  451.377344]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.382877]  ? should_fail+0x22d/0xd01
[  451.386768]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  451.391867]  ? zap_class+0x640/0x640
[  451.395601]  ? __lock_is_held+0xb5/0x140
[  451.399662]  ? mark_held_locks+0x130/0x130
[  451.403900]  ? lock_release+0xa00/0xa00
[  451.407873]  ? perf_trace_sched_process_exec+0x860/0x860
[  451.413327]  ? xa_load+0x2ba/0x460
[  451.416865]  ? lock_downgrade+0x900/0x900
[  451.421052]  ? __might_sleep+0x95/0x190
[  451.425026]  __alloc_pages_nodemask+0xa80/0xde0
[  451.429694]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  451.434705]  ? __page_cache_alloc+0x191/0x5c0
[  451.439194]  ? xa_load+0x2e1/0x460
[  451.442728]  ? xa_clear_mark+0x40/0x40
[  451.446604]  ? zap_class+0x640/0x640
[  451.450317]  ? zap_class+0x640/0x640
[  451.454022]  ? zap_class+0x640/0x640
[  451.458673]  ? __do_page_cache_readahead+0x663/0x810
[  451.463776]  ? find_held_lock+0x36/0x1c0
[  451.467836]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  451.473370]  alloc_pages_current+0x173/0x350
[  451.477787]  __page_cache_alloc+0x38c/0x5c0
[  451.482099]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  451.487036]  ? kasan_check_read+0x11/0x20
[  451.491173]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.496442]  ? generic_perform_write+0x6a0/0x6a0
[  451.501189]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.506719]  ? check_preemption_disabled+0x48/0x280
[  451.511735]  filemap_fault+0x1595/0x25f0
[  451.515804]  ? __lock_page_or_retry+0xa00/0xa00
[  451.520468]  ? mark_held_locks+0x130/0x130
[  451.524704]  ? filemap_map_pages+0xd6b/0x1a20
[  451.529194]  ? lock_downgrade+0x900/0x900
[  451.533334]  ? check_preemption_disabled+0x48/0x280
[  451.538346]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  451.543281]  ? kasan_check_read+0x11/0x20
[  451.547424]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.552694]  ? rcu_softirq_qs+0x20/0x20
[  451.557463]  ? filemap_map_pages+0xd92/0x1a20
[  451.561962]  ? find_get_entries_tag+0x1400/0x1400
[  451.566795]  ? debug_object_destroy+0x2b0/0x2b0
[  451.571456]  ? lock_pi_update_atomic+0x150/0x150
[  451.576207]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.581745]  ? lock_acquire+0x1ed/0x520
[  451.585710]  ? ext4_filemap_fault+0x7a/0xad
[  451.590031]  ? lock_release+0xa00/0xa00
[  451.593999]  ? perf_trace_sched_process_exec+0x860/0x860
[  451.599454]  ? print_usage_bug+0xc0/0xc0
[  451.603513]  ? print_usage_bug+0xc0/0xc0
[  451.607577]  ? down_read+0x8d/0x120
[  451.611192]  ? ext4_filemap_fault+0x7a/0xad
[  451.615505]  ? __down_interruptible+0x700/0x700
[  451.620201]  ext4_filemap_fault+0x82/0xad
[  451.624341]  __do_fault+0x100/0x6b0
[  451.627967]  ? pmd_devmap_trans_unstable+0x220/0x220
[  451.633067]  ? mark_held_locks+0x130/0x130
[  451.637296]  ? mark_held_locks+0x130/0x130
[  451.641529]  ? do_raw_spin_trylock+0x270/0x270
[  451.646115]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.651649]  __handle_mm_fault+0x3ea0/0x5be0
[  451.656052]  ? perf_trace_lock+0x7a0/0x7a0
[  451.661084]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  451.665929]  ? __switch_to_asm+0x34/0x70
[  451.669983]  ? __switch_to_asm+0x34/0x70
[  451.674046]  ? zap_class+0x640/0x640
[  451.677755]  ? zap_class+0x640/0x640
[  451.681463]  ? __x64_sys_futex+0x53e/0x6a0
[  451.685692]  ? find_held_lock+0x36/0x1c0
[  451.689766]  ? handle_mm_fault+0x42a/0xc70
[  451.693996]  ? lock_downgrade+0x900/0x900
[  451.698139]  ? check_preemption_disabled+0x48/0x280
[  451.703154]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  451.708074]  ? kasan_check_read+0x11/0x20
[  451.712215]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.717484]  ? rcu_softirq_qs+0x20/0x20
[  451.721452]  ? trace_hardirqs_off_caller+0x310/0x310
[  451.726551]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.732103]  ? check_preemption_disabled+0x48/0x280
[  451.737124]  handle_mm_fault+0x54f/0xc70
[  451.741182]  ? __handle_mm_fault+0x5be0/0x5be0
[  451.745762]  ? find_vma+0x34/0x190
[  451.749299]  __do_page_fault+0x5e8/0xe60
[  451.753354]  ? trace_hardirqs_off+0xb8/0x310
[  451.758939]  do_page_fault+0xf2/0x7e0
[  451.762750]  ? vmalloc_sync_all+0x30/0x30
[  451.766894]  ? error_entry+0x70/0xd0
[  451.770628]  ? trace_hardirqs_off_caller+0xbb/0x310
[  451.775646]  ? trace_hardirqs_on_caller+0xc0/0x310
[  451.780572]  ? syscall_return_slowpath+0x5e0/0x5e0
[  451.785488]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  451.790323]  ? trace_hardirqs_on_caller+0x310/0x310
[  451.795334]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  451.800800]  ? prepare_exit_to_usermode+0x291/0x3b0
[  451.805809]  ? page_fault+0x8/0x30
[  451.809360]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  451.814201]  ? page_fault+0x8/0x30
[  451.817735]  page_fault+0x1e/0x30
[  451.821179] RIP: 0033:0x45ddf3
[  451.824384] Code: Bad RIP value.
[  451.827754] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  451.833106] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  451.840366] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  451.847631] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  451.854890] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  451.862755] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  451.870032] warn_alloc_show_mem: 1 callbacks suppressed
[  451.870041] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  451.870043] Mem-Info:
[  451.870073] active_anon:54141 inactive_anon:292 isolated_anon:0
[  451.870073]  active_file:12 inactive_file:13 isolated_file:0
[  451.870073]  unevictable:0 dirty:0 writeback:0 unstable:0
[  451.870073]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  451.870073]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  451.870073]  free:13705 free_pcp:178 free_cma:0
[  451.875404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  451.882148] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  451.884538] Call Trace:
[  451.917400] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  451.926932]  dump_stack+0x244/0x39d
[  451.954567] lowmem_reserve[]: 0 2818 6321 6321
[  451.957458]  ? dump_stack_print_info.cold.1+0x20/0x20
[  451.983560] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  451.987178]  warn_alloc.cold.116+0xb7/0x1bd
[  451.991717] lowmem_reserve[]: 0 0 3503 3503
[  451.996896]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  452.024361] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  452.028670]  ? lock_downgrade+0x900/0x900
[  452.032966] lowmem_reserve[]: 0 0 0 0
[  452.037798]  ? trace_hardirqs_off+0xb8/0x310
[  452.067322] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  452.071468]  ? trace_hardirqs_off+0xb8/0x310
[  452.075239] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  452.079642]  __alloc_pages_slowpath+0x26e8/0x2e10
[  452.093121] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  452.097544]  ? warn_alloc+0x120/0x120
[  452.112756] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  452.117584]  ? warn_alloc+0x120/0x120
[  452.131771] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  452.135565]  ? warn_alloc+0x120/0x120
[  452.144369] 366 total pagecache pages
[  452.148267]  ? trace_hardirqs_off+0xb8/0x310
[  452.157590] 0 pages in swap cache
[  452.161366]  ? print_usage_bug+0xc0/0xc0
[  452.161383]  ? print_usage_bug+0xc0/0xc0
[  452.165157] Swap cache stats: add 0, delete 0, find 0/0
[  452.169548]  ? __lock_acquire+0x62f/0x4c20
[  452.172972] Free swap  = 0kB
[  452.177018]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.181046] Total swap = 0kB
[  452.186393]  ? should_fail+0x22d/0xd01
[  452.190608] 1965979 pages RAM
[  452.193630]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  452.199138] 0 pages HighMem/MovableOnly
[  452.202158]  ? __lock_acquire+0x62f/0x4c20
[  452.206009] 342854 pages reserved
[  452.206016] 0 pages cma reserved
[  452.209108]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  452.214233] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  452.218134]  ? __lock_acquire+0x62f/0x4c20
[  452.218149]  ? should_fail+0x22d/0xd01
[  452.222435] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  452.225801]  ? mark_held_locks+0x130/0x130
[  452.229134] syz-fuzzer cpuset=/ mems_allowed=0
[  452.234224]  ? mark_held_locks+0x130/0x130
[  452.272271]  ? zap_class+0x640/0x640
[  452.275974]  ? ret_from_fork+0x3a/0x50
[  452.279861]  ? __lock_acquire+0x62f/0x4c20
[  452.284088]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.289614]  ? check_preemption_disabled+0x48/0x280
[  452.294715]  ? __lock_is_held+0xb5/0x140
[  452.298870]  __alloc_pages_nodemask+0xa80/0xde0
[  452.303535]  ? zap_class+0x640/0x640
[  452.307253]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  452.312269]  ? find_held_lock+0x36/0x1c0
[  452.316333]  ? ____cache_alloc_node+0x1c7/0x1e0
[  452.320998]  ? lock_downgrade+0x900/0x900
[  452.325165]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.330699]  cache_grow_begin+0xa5/0x8c0
[  452.334752]  ? do_raw_spin_unlock+0xa7/0x330
[  452.339154]  fallback_alloc+0x204/0x2e0
[  452.343125]  ____cache_alloc_node+0x1c7/0x1e0
[  452.347612]  kmem_cache_alloc_node+0xe3/0x730
[  452.352112]  ? mark_held_locks+0xc7/0x130
[  452.356569]  __alloc_skb+0x119/0x770
[  452.360362]  ? netdev_alloc_frag+0x1f0/0x1f0
[  452.364762]  ? do_raw_spin_trylock+0x270/0x270
[  452.369334]  ? kmem_cache_alloc_trace+0x353/0x750
[  452.374172]  ? queue_work_on+0x12c/0x1e0
[  452.378234]  ? switchdev_port_obj_del+0xdc/0x440
[  452.382986]  ? switchdev_trans_item_enqueue+0x260/0x260
[  452.388349]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  452.393363]  __br_mdb_notify+0x4ff/0x15d0
[  452.397503]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  452.402616]  ? __br_mdb_add+0x7f0/0x7f0
[  452.406587]  ? mark_held_locks+0x130/0x130
[  452.410830]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  452.415934]  ? debug_object_assert_init+0x368/0x4b0
[  452.420948]  ? debug_object_init_on_stack+0x20/0x20
[  452.425957]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.431491]  br_mdb_notify+0x310/0x410
[  452.435370]  ? br_mdb_dump+0x27b0/0x27b0
[  452.439442]  br_multicast_del_pg+0x3df/0x790
[  452.443860]  ? br_mdb_ip_get+0x940/0x940
[  452.447908]  ? rwlock_bug.part.2+0x90/0x90
[  452.452174]  ? __lock_is_held+0xb5/0x140
[  452.456566]  br_multicast_port_group_expired+0x189/0x1e0
[  452.462003]  call_timer_fn+0x272/0x920
[  452.465882]  ? br_multicast_del_pg+0x790/0x790
[  452.470456]  ? process_timeout+0x40/0x40
[  452.474513]  ? __run_timers+0x7da/0xc70
[  452.478481]  ? _raw_spin_unlock_irq+0x27/0x80
[  452.482970]  ? _raw_spin_unlock_irq+0x27/0x80
[  452.487453]  ? br_multicast_del_pg+0x790/0x790
[  452.492025]  ? lockdep_hardirqs_on+0x296/0x5b0
[  452.496597]  ? trace_hardirqs_on+0xbd/0x310
[  452.500911]  ? kasan_check_read+0x11/0x20
[  452.505052]  ? __run_timers+0x7da/0xc70
[  452.509023]  ? trace_hardirqs_off_caller+0x310/0x310
[  452.514131]  ? br_multicast_del_pg+0x790/0x790
[  452.518709]  ? br_multicast_del_pg+0x790/0x790
[  452.523289]  __run_timers+0x7e5/0xc70
[  452.527089]  ? timer_fixup_init+0x70/0x70
[  452.531245]  ? _raw_spin_unlock_irq+0x27/0x80
[  452.535731]  ? _raw_spin_unlock_irq+0x27/0x80
[  452.540216]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  452.544791]  ? trace_hardirqs_on+0xbd/0x310
[  452.549107]  ? kasan_check_read+0x11/0x20
[  452.553251]  ? finish_task_switch+0x1f4/0x910
[  452.558028]  ? trace_hardirqs_off_caller+0x310/0x310
[  452.563122]  ? compat_start_thread+0x80/0x80
[  452.567543]  ? pvclock_read_flags+0x160/0x160
[  452.572025]  ? __switch_to_asm+0x34/0x70
[  452.576098]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.581630]  ? check_preemption_disabled+0x48/0x280
[  452.586645]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  452.592176]  ? rcu_pm_notify+0xc0/0xc0
[  452.596076]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.601605]  ? check_preemption_disabled+0x48/0x280
[  452.606621]  run_timer_softirq+0x52/0xb0
[  452.610671]  ? rcu_read_lock_sched_held+0x14f/0x180
[  452.615675]  __do_softirq+0x308/0xb7e
[  452.619473]  ? trace_hardirqs_on_caller+0xc0/0x310
[  452.624397]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  452.629494]  ? trace_hardirqs_on+0x310/0x310
[  452.633900]  ? schedule+0x108/0x460
[  452.637531]  ? trace_hardirqs_off+0xb8/0x310
[  452.641946]  ? smpboot_thread_fn+0x68b/0xa00
[  452.646345]  ? trace_hardirqs_on+0x310/0x310
[  452.650764]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.656595]  ? check_preemption_disabled+0x48/0x280
[  452.661607]  ? takeover_tasklets+0xa90/0xa90
[  452.666012]  run_ksoftirqd+0x5e/0x100
[  452.669814]  smpboot_thread_fn+0x68b/0xa00
[  452.674064]  ? sort_range+0x30/0x30
[  452.677682]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  452.682777]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.688327]  ? __kthread_parkme+0xfb/0x1a0
[  452.692559]  ? sort_range+0x30/0x30
[  452.696178]  kthread+0x35a/0x440
[  452.699541]  ? kthread_stop+0x900/0x900
[  452.703523]  ret_from_fork+0x3a/0x50
[  452.707244] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  452.707373] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  452.714168] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  452.724453] ksoftirqd/0 cpuset=/ mems_allowed=0
[  452.733782] Call Trace:
[  452.740993]  <IRQ>
[  452.743137]  dump_stack+0x244/0x39d
[  452.746761]  ? dump_stack_print_info.cold.1+0x20/0x20
[  452.751959]  warn_alloc.cold.116+0xb7/0x1bd
[  452.757021]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  452.761874]  ? lock_downgrade+0x900/0x900
[  452.766024]  ? trace_hardirqs_off+0xb8/0x310
[  452.770432]  ? trace_hardirqs_off+0xb8/0x310
[  452.774843]  __alloc_pages_slowpath+0x26e8/0x2e10
[  452.779702]  ? warn_alloc+0x120/0x120
[  452.783581]  ? print_usage_bug+0xc0/0xc0
[  452.787631]  ? warn_alloc+0x120/0x120
[  452.791426]  ? warn_alloc+0x120/0x120
[  452.795218]  ? print_usage_bug+0xc0/0xc0
[  452.799273]  ? kvm_clock_read+0x18/0x30
[  452.803239]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  452.808261]  ? print_usage_bug+0xc0/0xc0
[  452.812319]  ? __lock_acquire+0x62f/0x4c20
[  452.816552]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.822084]  ? should_fail+0x22d/0xd01
[  452.825971]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  452.831242]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  452.836340]  ? __lock_acquire+0x62f/0x4c20
[  452.840570]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  452.845660]  ? __lock_acquire+0x62f/0x4c20
[  452.849879]  ? should_fail+0x22d/0xd01
[  452.853775]  ? rcu_irq_exit+0x1a2/0x390
[  452.858500]  ? mark_held_locks+0x130/0x130
[  452.862728]  ? mark_held_locks+0x130/0x130
[  452.866960]  ? mark_held_locks+0xc7/0x130
[  452.871114]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  452.876117]  ? zap_class+0x640/0x640
[  452.879819]  ? print_usage_bug+0xc0/0xc0
[  452.883876]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.889418]  ? check_preemption_disabled+0x48/0x280
[  452.894454]  ? __lock_is_held+0xb5/0x140
[  452.898512]  __alloc_pages_nodemask+0xa80/0xde0
[  452.903215]  ? zap_class+0x640/0x640
[  452.906943]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  452.911961]  ? find_held_lock+0x36/0x1c0
[  452.916024]  ? ____cache_alloc_node+0x1c7/0x1e0
[  452.920689]  ? lock_downgrade+0x900/0x900
[  452.924834]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.930372]  cache_grow_begin+0xa5/0x8c0
[  452.934426]  ? do_raw_spin_unlock+0xa7/0x330
[  452.938834]  fallback_alloc+0x204/0x2e0
[  452.942810]  ____cache_alloc_node+0x1c7/0x1e0
[  452.947320]  kmem_cache_alloc_node+0xe3/0x730
[  452.951812]  ? ipv6_get_ifaddr+0x42e/0x620
[  452.956823]  __alloc_skb+0x119/0x770
[  452.960618]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  452.965888]  ? netdev_alloc_frag+0x1f0/0x1f0
[  452.970286]  ? lock_downgrade+0x900/0x900
[  452.974438]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.979969]  ? refcount_sub_and_test_checked+0x203/0x310
[  452.985415]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  452.990856]  ? addrconf_rs_timer+0x690/0x690
[  452.995269]  ndisc_alloc_skb+0x144/0x340
[  452.999333]  ndisc_send_rs+0x331/0x6e0
[  453.003234]  addrconf_rs_timer+0x314/0x690
[  453.007467]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  453.011703]  call_timer_fn+0x272/0x920
[  453.015584]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  453.019812]  ? process_timeout+0x40/0x40
[  453.023876]  ? mark_held_locks+0xc7/0x130
[  453.028020]  ? _raw_spin_unlock_irq+0x27/0x80
[  453.032506]  ? _raw_spin_unlock_irq+0x27/0x80
[  453.036997]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  453.041226]  ? lockdep_hardirqs_on+0x296/0x5b0
[  453.045806]  ? trace_hardirqs_on+0xbd/0x310
[  453.050122]  ? kasan_check_read+0x11/0x20
[  453.054261]  ? __run_timers+0x7da/0xc70
[  453.059175]  ? trace_hardirqs_off_caller+0x310/0x310
[  453.064278]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  453.068511]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  453.072740]  __run_timers+0x7e5/0xc70
[  453.076544]  ? timer_fixup_init+0x70/0x70
[  453.080691]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  453.085700]  ? zap_class+0x640/0x640
[  453.089412]  ? print_usage_bug+0xc0/0xc0
[  453.093467]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  453.098655]  ? find_held_lock+0x36/0x1c0
[  453.102710]  ? zap_class+0x640/0x640
[  453.106416]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.111945]  ? check_preemption_disabled+0x48/0x280
[  453.116965]  ? __lock_is_held+0xb5/0x140
[  453.121020]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.126557]  ? check_preemption_disabled+0x48/0x280
[  453.131582]  run_timer_softirq+0x52/0xb0
[  453.135637]  ? rcu_read_lock_sched_held+0x14f/0x180
[  453.140649]  __do_softirq+0x308/0xb7e
[  453.144444]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  453.148931]  ? lock_downgrade+0x900/0x900
[  453.153163]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  453.159257]  ? pvclock_read_flags+0x160/0x160
[  453.163747]  ? lapic_next_event+0x5a/0x90
[  453.167899]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.173432]  ? kvm_clock_read+0x18/0x30
[  453.177400]  ? kvm_sched_clock_read+0x9/0x20
[  453.181804]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.187346]  ? check_preemption_disabled+0x48/0x280
[  453.192365]  irq_exit+0x17f/0x1c0
[  453.195810]  smp_apic_timer_interrupt+0x1cb/0x760
[  453.200652]  ? smp_reschedule_interrupt+0x109/0x650
[  453.205658]  ? smp_call_function_single_interrupt+0x650/0x650
[  453.211534]  ? interrupt_entry+0xb5/0xc0
[  453.215590]  ? trace_hardirqs_off_caller+0xbb/0x310
[  453.220601]  ? trace_hardirqs_off_caller+0xbb/0x310
[  453.225610]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  453.230448]  ? trace_hardirqs_on_caller+0x310/0x310
[  453.235460]  ? trace_hardirqs_on_caller+0x310/0x310
[  453.240466]  ? task_prio+0x50/0x50
[  453.244010]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.249539]  ? check_preemption_disabled+0x48/0x280
[  453.254554]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  453.259899]  apic_timer_interrupt+0xf/0x20
[  453.264122]  </IRQ>
[  453.266359] RIP: 0010:dump_stack+0x358/0x39d
[  453.270783] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  453.289677] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  453.297378] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  453.304637] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  453.311899] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  453.319172] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  453.326432] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  453.333708]  ? dump_stack+0x34f/0x39d
[  453.337510]  ? dump_stack_print_info.cold.1+0x20/0x20
[  453.342696]  ? mark_held_locks+0x130/0x130
[  453.346919]  ? mark_held_locks+0x130/0x130
[  453.351147]  dump_header+0x27b/0xf72
[  453.354863]  ? pagefault_out_of_memory+0x197/0x197
[  453.360455]  ? __lock_acquire+0x62f/0x4c20
[  453.364683]  ? percpu_ref_get_many+0x240/0x240
[  453.369258]  ? print_usage_bug+0xc0/0xc0
[  453.373318]  ? zap_class+0x640/0x640
[  453.377031]  ? print_usage_bug+0xc0/0xc0
[  453.381081]  ? print_usage_bug+0xc0/0xc0
[  453.385140]  ? zap_class+0x640/0x640
[  453.388848]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.394382]  ? find_held_lock+0x36/0x1c0
[  453.398439]  ? mark_held_locks+0xc7/0x130
[  453.402578]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  453.407669]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  453.412771]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  453.417349]  ? trace_hardirqs_on+0xbd/0x310
[  453.421663]  ? kasan_check_read+0x11/0x20
[  453.425803]  ? ___ratelimit+0x3b4/0x672
[  453.429778]  ? trace_hardirqs_off_caller+0x310/0x310
[  453.434875]  ? trace_hardirqs_on+0x310/0x310
[  453.439282]  ? lock_downgrade+0x900/0x900
[  453.443426]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  453.449563]  ? ___ratelimit+0x3b9/0x672
[  453.453532]  ? idr_get_free+0xf70/0xf70
[  453.458455]  ? find_held_lock+0x36/0x1c0
[  453.462526]  oom_kill_process.cold.27+0x10/0x903
[  453.467279]  ? zap_class+0x640/0x640
[  453.470986]  ? check_preemption_disabled+0x48/0x280
[  453.475999]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  453.480922]  ? kasan_check_read+0x11/0x20
[  453.485063]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.490331]  ? oom_evaluate_task+0x540/0x540
[  453.494737]  ? find_held_lock+0x36/0x1c0
[  453.498804]  ? out_of_memory+0x974/0x1430
[  453.502946]  ? lock_downgrade+0x900/0x900
[  453.507084]  ? check_preemption_disabled+0x48/0x280
[  453.512179]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  453.517099]  ? kasan_check_read+0x11/0x20
[  453.521239]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.526509]  ? rcu_softirq_qs+0x20/0x20
[  453.530483]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.536028]  ? oom_evaluate_task+0x302/0x540
[  453.540433]  out_of_memory+0xa84/0x1430
[  453.544413]  ? oom_killer_disable+0x3a0/0x3a0
[  453.548902]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  453.553826]  ? __ww_mutex_check_waiters+0x160/0x160
[  453.559592]  __alloc_pages_slowpath+0x2354/0x2e10
[  453.564449]  ? warn_alloc+0x120/0x120
[  453.568245]  ? mark_held_locks+0x130/0x130
[  453.572479]  ? find_get_entry+0xaae/0x1120
[  453.576721]  ? filemap_map_pages+0x1a20/0x1a20
[  453.581305]  ? zap_class+0x640/0x640
[  453.585019]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.590550]  ? check_preemption_disabled+0x48/0x280
[  453.595563]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.601097]  ? should_fail+0x22d/0xd01
[  453.604981]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  453.610076]  ? zap_class+0x640/0x640
[  453.613803]  ? __lock_is_held+0xb5/0x140
[  453.617866]  ? mark_held_locks+0x130/0x130
[  453.622097]  ? lock_release+0xa00/0xa00
[  453.626069]  ? perf_trace_sched_process_exec+0x860/0x860
[  453.631513]  ? xa_load+0x2ba/0x460
[  453.635046]  ? lock_downgrade+0x900/0x900
[  453.639193]  ? __might_sleep+0x95/0x190
[  453.643167]  __alloc_pages_nodemask+0xa80/0xde0
[  453.647834]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  453.652844]  ? __page_cache_alloc+0x191/0x5c0
[  453.658091]  ? xa_load+0x2e1/0x460
[  453.661628]  ? xa_clear_mark+0x40/0x40
[  453.665511]  ? zap_class+0x640/0x640
[  453.669225]  ? zap_class+0x640/0x640
[  453.672937]  ? zap_class+0x640/0x640
[  453.676643]  ? __do_page_cache_readahead+0x663/0x810
[  453.681753]  ? find_held_lock+0x36/0x1c0
[  453.685813]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  453.691350]  alloc_pages_current+0x173/0x350
[  453.695843]  __page_cache_alloc+0x38c/0x5c0
[  453.700168]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  453.705087]  ? kasan_check_read+0x11/0x20
[  453.709227]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.714519]  ? generic_perform_write+0x6a0/0x6a0
[  453.719268]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.724813]  ? check_preemption_disabled+0x48/0x280
[  453.729825]  filemap_fault+0x1595/0x25f0
[  453.733886]  ? __lock_page_or_retry+0xa00/0xa00
[  453.738551]  ? mark_held_locks+0x130/0x130
[  453.742795]  ? filemap_map_pages+0xd6b/0x1a20
[  453.747279]  ? lock_downgrade+0x900/0x900
[  453.751420]  ? check_preemption_disabled+0x48/0x280
[  453.757616]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  453.762538]  ? kasan_check_read+0x11/0x20
[  453.766681]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.771970]  ? rcu_softirq_qs+0x20/0x20
[  453.775953]  ? filemap_map_pages+0xd92/0x1a20
[  453.780456]  ? find_get_entries_tag+0x1400/0x1400
[  453.785295]  ? debug_object_destroy+0x2b0/0x2b0
[  453.789954]  ? lock_pi_update_atomic+0x150/0x150
[  453.794700]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.800262]  ? lock_acquire+0x1ed/0x520
[  453.804225]  ? ext4_filemap_fault+0x7a/0xad
[  453.808619]  ? lock_release+0xa00/0xa00
[  453.812584]  ? perf_trace_sched_process_exec+0x860/0x860
[  453.818030]  ? print_usage_bug+0xc0/0xc0
[  453.822172]  ? print_usage_bug+0xc0/0xc0
[  453.826236]  ? down_read+0x8d/0x120
[  453.829856]  ? ext4_filemap_fault+0x7a/0xad
[  453.834170]  ? __down_interruptible+0x700/0x700
[  453.838839]  ext4_filemap_fault+0x82/0xad
[  453.842982]  __do_fault+0x100/0x6b0
[  453.846601]  ? pmd_devmap_trans_unstable+0x220/0x220
[  453.851695]  ? mark_held_locks+0x130/0x130
[  453.855926]  ? mark_held_locks+0x130/0x130
[  453.860944]  ? do_raw_spin_trylock+0x270/0x270
[  453.865524]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.871057]  __handle_mm_fault+0x3ea0/0x5be0
[  453.875460]  ? perf_trace_lock+0x7a0/0x7a0
[  453.879696]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  453.884543]  ? __switch_to_asm+0x34/0x70
[  453.888594]  ? __switch_to_asm+0x34/0x70
[  453.892659]  ? zap_class+0x640/0x640
[  453.896364]  ? zap_class+0x640/0x640
[  453.900069]  ? __x64_sys_futex+0x53e/0x6a0
[  453.904319]  ? find_held_lock+0x36/0x1c0
[  453.908385]  ? handle_mm_fault+0x42a/0xc70
[  453.912614]  ? lock_downgrade+0x900/0x900
[  453.916755]  ? check_preemption_disabled+0x48/0x280
[  453.921767]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  453.927218]  ? kasan_check_read+0x11/0x20
[  453.931364]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.936630]  ? rcu_softirq_qs+0x20/0x20
[  453.940615]  ? trace_hardirqs_off_caller+0x310/0x310
[  453.945709]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.951277]  ? check_preemption_disabled+0x48/0x280
[  453.957299]  handle_mm_fault+0x54f/0xc70
[  453.961353]  ? __handle_mm_fault+0x5be0/0x5be0
[  453.965926]  ? find_vma+0x34/0x190
[  453.969462]  __do_page_fault+0x5e8/0xe60
[  453.973516]  ? trace_hardirqs_off+0xb8/0x310
[  453.977923]  do_page_fault+0xf2/0x7e0
[  453.981728]  ? vmalloc_sync_all+0x30/0x30
[  453.985873]  ? error_entry+0x70/0xd0
[  453.989583]  ? trace_hardirqs_off_caller+0xbb/0x310
[  453.994604]  ? trace_hardirqs_on_caller+0xc0/0x310
[  453.999550]  ? syscall_return_slowpath+0x5e0/0x5e0
[  454.004470]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  454.009307]  ? trace_hardirqs_on_caller+0x310/0x310
[  454.014320]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  454.019767]  ? prepare_exit_to_usermode+0x291/0x3b0
[  454.024775]  ? page_fault+0x8/0x30
[  454.028312]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  454.033154]  ? page_fault+0x8/0x30
[  454.036687]  page_fault+0x1e/0x30
[  454.040137] RIP: 0033:0x45ddf3
[  454.043336] Code: Bad RIP value.
[  454.046711] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  454.052079] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  454.060324] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  454.067584] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  454.074846] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  454.082107] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  454.089389] warn_alloc_show_mem: 1 callbacks suppressed
[  454.089398] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  454.089400] Mem-Info:
[  454.089428] active_anon:54141 inactive_anon:292 isolated_anon:0
[  454.089428]  active_file:12 inactive_file:13 isolated_file:0
[  454.089428]  unevictable:0 dirty:0 writeback:0 unstable:0
[  454.089428]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  454.089428]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  454.089428]  free:13705 free_pcp:178 free_cma:0
[  454.094762] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  454.101513] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  454.103895] Call Trace:
[  454.136751] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  454.146117]  dump_stack+0x244/0x39d
[  454.174722] lowmem_reserve[]: 0 2818 6321 6321
[  454.177313]  ? dump_stack_print_info.cold.1+0x20/0x20
[  454.203387] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  454.207014]  warn_alloc.cold.116+0xb7/0x1bd
[  454.211549] lowmem_reserve[]: 0 0 3503 3503
[  454.216742]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  454.244207] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  454.248517]  ? lock_downgrade+0x900/0x900
[  454.252804] lowmem_reserve[]: 0 0 0 0
[  454.257915]  ? trace_hardirqs_off+0xb8/0x310
[  454.286858] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  454.291000]  ? trace_hardirqs_off+0xb8/0x310
[  454.294771] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  454.299172]  __alloc_pages_slowpath+0x26e8/0x2e10
[  454.312745] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  454.317161]  ? warn_alloc+0x120/0x120
[  454.332372] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  454.337199]  ? warn_alloc+0x120/0x120
[  454.351393] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  454.355176]  ? warn_alloc+0x120/0x120
[  454.364747] 366 total pagecache pages
[  454.368532]  ? trace_hardirqs_off+0xb8/0x310
[  454.377082] 0 pages in swap cache
[  454.380948]  ? print_usage_bug+0xc0/0xc0
[  454.384730] Swap cache stats: add 0, delete 0, find 0/0
[  454.389135]  ? print_usage_bug+0xc0/0xc0
[  454.392553] Free swap  = 0kB
[  454.392560] Total swap = 0kB
[  454.396609]  ? __lock_acquire+0x62f/0x4c20
[  454.401941] 1965979 pages RAM
[  454.405999]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  454.408982] 0 pages HighMem/MovableOnly
[  454.408990] 342854 pages reserved
[  454.411996]  ? should_fail+0x22d/0xd01
[  454.416201] 0 pages cma reserved
[  454.419294]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  454.424852] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  454.428764]  ? __lock_acquire+0x62f/0x4c20
[  454.432271] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  454.436066]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  454.439404] syz-fuzzer cpuset=/ mems_allowed=0
[  454.444483]  ? __lock_acquire+0x62f/0x4c20
[  454.444498]  ? should_fail+0x22d/0xd01
[  454.483561]  ? mark_held_locks+0x130/0x130
[  454.487791]  ? mark_held_locks+0x130/0x130
[  454.492036]  ? zap_class+0x640/0x640
[  454.495744]  ? ret_from_fork+0x3a/0x50
[  454.499624]  ? __lock_acquire+0x62f/0x4c20
[  454.503851]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.509377]  ? check_preemption_disabled+0x48/0x280
[  454.514388]  ? __lock_is_held+0xb5/0x140
[  454.518444]  __alloc_pages_nodemask+0xa80/0xde0
[  454.523104]  ? zap_class+0x640/0x640
[  454.526813]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  454.531834]  ? find_held_lock+0x36/0x1c0
[  454.535895]  ? ____cache_alloc_node+0x1c7/0x1e0
[  454.540555]  ? lock_downgrade+0x900/0x900
[  454.544713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.550256]  cache_grow_begin+0xa5/0x8c0
[  454.554312]  ? do_raw_spin_unlock+0xa7/0x330
[  454.559040]  fallback_alloc+0x204/0x2e0
[  454.563010]  ____cache_alloc_node+0x1c7/0x1e0
[  454.567504]  kmem_cache_alloc_node+0xe3/0x730
[  454.571989]  ? mark_held_locks+0xc7/0x130
[  454.576141]  __alloc_skb+0x119/0x770
[  454.579849]  ? netdev_alloc_frag+0x1f0/0x1f0
[  454.584251]  ? do_raw_spin_trylock+0x270/0x270
[  454.588826]  ? kmem_cache_alloc_trace+0x353/0x750
[  454.593666]  ? queue_work_on+0x12c/0x1e0
[  454.597745]  ? switchdev_port_obj_del+0xdc/0x440
[  454.602495]  ? switchdev_trans_item_enqueue+0x260/0x260
[  454.607856]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  454.612872]  __br_mdb_notify+0x4ff/0x15d0
[  454.617012]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  454.622115]  ? __br_mdb_add+0x7f0/0x7f0
[  454.626085]  ? mark_held_locks+0x130/0x130
[  454.630331]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  454.635430]  ? debug_object_assert_init+0x368/0x4b0
[  454.640439]  ? debug_object_init_on_stack+0x20/0x20
[  454.645450]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.650986]  br_mdb_notify+0x310/0x410
[  454.654870]  ? br_mdb_dump+0x27b0/0x27b0
[  454.659310]  br_multicast_del_pg+0x3df/0x790
[  454.663722]  ? br_mdb_ip_get+0x940/0x940
[  454.667771]  ? rwlock_bug.part.2+0x90/0x90
[  454.671998]  ? __lock_is_held+0xb5/0x140
[  454.676057]  br_multicast_port_group_expired+0x189/0x1e0
[  454.681501]  call_timer_fn+0x272/0x920
[  454.685379]  ? br_multicast_del_pg+0x790/0x790
[  454.689952]  ? process_timeout+0x40/0x40
[  454.694013]  ? __run_timers+0x7da/0xc70
[  454.697982]  ? _raw_spin_unlock_irq+0x27/0x80
[  454.702467]  ? _raw_spin_unlock_irq+0x27/0x80
[  454.706953]  ? br_multicast_del_pg+0x790/0x790
[  454.711614]  ? lockdep_hardirqs_on+0x296/0x5b0
[  454.716191]  ? trace_hardirqs_on+0xbd/0x310
[  454.720506]  ? kasan_check_read+0x11/0x20
[  454.724646]  ? __run_timers+0x7da/0xc70
[  454.728616]  ? trace_hardirqs_off_caller+0x310/0x310
[  454.733744]  ? br_multicast_del_pg+0x790/0x790
[  454.738352]  ? br_multicast_del_pg+0x790/0x790
[  454.742922]  __run_timers+0x7e5/0xc70
[  454.746724]  ? timer_fixup_init+0x70/0x70
[  454.750863]  ? _raw_spin_unlock_irq+0x27/0x80
[  454.755351]  ? _raw_spin_unlock_irq+0x27/0x80
[  454.760143]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  454.764717]  ? trace_hardirqs_on+0xbd/0x310
[  454.769043]  ? kasan_check_read+0x11/0x20
[  454.773202]  ? finish_task_switch+0x1f4/0x910
[  454.777700]  ? trace_hardirqs_off_caller+0x310/0x310
[  454.782799]  ? compat_start_thread+0x80/0x80
[  454.787220]  ? pvclock_read_flags+0x160/0x160
[  454.791709]  ? __switch_to_asm+0x34/0x70
[  454.795762]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.801294]  ? check_preemption_disabled+0x48/0x280
[  454.806312]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  454.811843]  ? rcu_pm_notify+0xc0/0xc0
[  454.815726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.821260]  ? check_preemption_disabled+0x48/0x280
[  454.826272]  run_timer_softirq+0x52/0xb0
[  454.830327]  ? rcu_read_lock_sched_held+0x14f/0x180
[  454.835335]  __do_softirq+0x308/0xb7e
[  454.839133]  ? trace_hardirqs_on_caller+0xc0/0x310
[  454.844062]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  454.849159]  ? trace_hardirqs_on+0x310/0x310
[  454.853566]  ? schedule+0x108/0x460
[  454.857469]  ? trace_hardirqs_off+0xb8/0x310
[  454.861871]  ? smpboot_thread_fn+0x68b/0xa00
[  454.866273]  ? trace_hardirqs_on+0x310/0x310
[  454.870687]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  454.876217]  ? check_preemption_disabled+0x48/0x280
[  454.881226]  ? takeover_tasklets+0xa90/0xa90
[  454.885636]  run_ksoftirqd+0x5e/0x100
[  454.889436]  smpboot_thread_fn+0x68b/0xa00
[  454.893671]  ? sort_range+0x30/0x30
[  454.897297]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  454.902393]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  454.907944]  ? __kthread_parkme+0xfb/0x1a0
[  454.912177]  ? sort_range+0x30/0x30
[  454.915798]  kthread+0x35a/0x440
[  454.919162]  ? kthread_stop+0x900/0x900
[  454.923127]  ret_from_fork+0x3a/0x50
[  454.926848] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  454.926997] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  454.933781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  454.944067] ksoftirqd/0 cpuset=/ mems_allowed=0
[  454.953397] Call Trace:
[  454.960946]  <IRQ>
[  454.963094]  dump_stack+0x244/0x39d
[  454.966715]  ? dump_stack_print_info.cold.1+0x20/0x20
[  454.971913]  warn_alloc.cold.116+0xb7/0x1bd
[  454.976244]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  454.981085]  ? lock_downgrade+0x900/0x900
[  454.985230]  ? trace_hardirqs_off+0xb8/0x310
[  454.989640]  ? trace_hardirqs_off+0xb8/0x310
[  454.994054]  __alloc_pages_slowpath+0x26e8/0x2e10
[  454.998922]  ? warn_alloc+0x120/0x120
[  455.002716]  ? print_usage_bug+0xc0/0xc0
[  455.006770]  ? warn_alloc+0x120/0x120
[  455.010587]  ? warn_alloc+0x120/0x120
[  455.014374]  ? print_usage_bug+0xc0/0xc0
[  455.018427]  ? kvm_clock_read+0x18/0x30
[  455.022393]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  455.027498]  ? print_usage_bug+0xc0/0xc0
[  455.031563]  ? __lock_acquire+0x62f/0x4c20
[  455.035809]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.041354]  ? should_fail+0x22d/0xd01
[  455.045232]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.050506]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  455.055610]  ? __lock_acquire+0x62f/0x4c20
[  455.060626]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  455.065746]  ? __lock_acquire+0x62f/0x4c20
[  455.069992]  ? should_fail+0x22d/0xd01
[  455.073870]  ? rcu_irq_exit+0x1a2/0x390
[  455.077846]  ? mark_held_locks+0x130/0x130
[  455.082077]  ? mark_held_locks+0x130/0x130
[  455.086304]  ? mark_held_locks+0xc7/0x130
[  455.090463]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  455.095473]  ? zap_class+0x640/0x640
[  455.099183]  ? print_usage_bug+0xc0/0xc0
[  455.103238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.108769]  ? check_preemption_disabled+0x48/0x280
[  455.113786]  ? __lock_is_held+0xb5/0x140
[  455.117857]  __alloc_pages_nodemask+0xa80/0xde0
[  455.122516]  ? zap_class+0x640/0x640
[  455.126229]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  455.131251]  ? find_held_lock+0x36/0x1c0
[  455.135317]  ? ____cache_alloc_node+0x1c7/0x1e0
[  455.139979]  ? lock_downgrade+0x900/0x900
[  455.144131]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.149674]  cache_grow_begin+0xa5/0x8c0
[  455.153743]  ? do_raw_spin_unlock+0xa7/0x330
[  455.159130]  fallback_alloc+0x204/0x2e0
[  455.163129]  ____cache_alloc_node+0x1c7/0x1e0
[  455.167628]  kmem_cache_alloc_node+0xe3/0x730
[  455.172119]  ? ipv6_get_ifaddr+0x42e/0x620
[  455.176356]  __alloc_skb+0x119/0x770
[  455.180064]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.185336]  ? netdev_alloc_frag+0x1f0/0x1f0
[  455.189740]  ? lock_downgrade+0x900/0x900
[  455.193888]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.199420]  ? refcount_sub_and_test_checked+0x203/0x310
[  455.204866]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  455.210309]  ? addrconf_rs_timer+0x690/0x690
[  455.214721]  ndisc_alloc_skb+0x144/0x340
[  455.218790]  ndisc_send_rs+0x331/0x6e0
[  455.222674]  addrconf_rs_timer+0x314/0x690
[  455.226907]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  455.231140]  call_timer_fn+0x272/0x920
[  455.235024]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  455.239267]  ? process_timeout+0x40/0x40
[  455.243327]  ? mark_held_locks+0xc7/0x130
[  455.247468]  ? _raw_spin_unlock_irq+0x27/0x80
[  455.251964]  ? _raw_spin_unlock_irq+0x27/0x80
[  455.256725]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  455.260953]  ? lockdep_hardirqs_on+0x296/0x5b0
[  455.265535]  ? trace_hardirqs_on+0xbd/0x310
[  455.269845]  ? kasan_check_read+0x11/0x20
[  455.273980]  ? __run_timers+0x7da/0xc70
[  455.278054]  ? trace_hardirqs_off_caller+0x310/0x310
[  455.283165]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  455.287393]  __run_timers+0x7e5/0xc70
[  455.291197]  ? timer_fixup_init+0x70/0x70
[  455.295341]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  455.300351]  ? zap_class+0x640/0x640
[  455.304062]  ? print_usage_bug+0xc0/0xc0
[  455.308125]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  455.313317]  ? find_held_lock+0x36/0x1c0
[  455.317374]  ? zap_class+0x640/0x640
[  455.321084]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.326615]  ? check_preemption_disabled+0x48/0x280
[  455.331645]  ? __lock_is_held+0xb5/0x140
[  455.335704]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.341236]  ? check_preemption_disabled+0x48/0x280
[  455.346253]  run_timer_softirq+0x52/0xb0
[  455.350312]  ? rcu_read_lock_sched_held+0x14f/0x180
[  455.355319]  __do_softirq+0x308/0xb7e
[  455.360069]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  455.364568]  ? lock_downgrade+0x900/0x900
[  455.368802]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  455.373906]  ? pvclock_read_flags+0x160/0x160
[  455.378402]  ? lapic_next_event+0x5a/0x90
[  455.382546]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.388081]  ? kvm_clock_read+0x18/0x30
[  455.392051]  ? kvm_sched_clock_read+0x9/0x20
[  455.396454]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.401990]  ? check_preemption_disabled+0x48/0x280
[  455.407008]  irq_exit+0x17f/0x1c0
[  455.410455]  smp_apic_timer_interrupt+0x1cb/0x760
[  455.415299]  ? smp_reschedule_interrupt+0x109/0x650
[  455.420309]  ? smp_call_function_single_interrupt+0x650/0x650
[  455.426200]  ? interrupt_entry+0xb5/0xc0
[  455.430252]  ? trace_hardirqs_off_caller+0xbb/0x310
[  455.435257]  ? trace_hardirqs_off_caller+0xbb/0x310
[  455.440265]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  455.445100]  ? trace_hardirqs_on_caller+0x310/0x310
[  455.450109]  ? trace_hardirqs_on_caller+0x310/0x310
[  455.455116]  ? task_prio+0x50/0x50
[  455.459629]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.465160]  ? check_preemption_disabled+0x48/0x280
[  455.470169]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  455.475008]  apic_timer_interrupt+0xf/0x20
[  455.479228]  </IRQ>
[  455.481460] RIP: 0010:dump_stack+0x358/0x39d
[  455.485862] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  455.504753] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  455.512465] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  455.519721] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  455.526979] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  455.534237] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  455.541498] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  455.548775]  ? dump_stack+0x34f/0x39d
[  455.552580]  ? dump_stack_print_info.cold.1+0x20/0x20
[  455.558279]  ? mark_held_locks+0x130/0x130
[  455.562504]  ? mark_held_locks+0x130/0x130
[  455.566737]  dump_header+0x27b/0xf72
[  455.570456]  ? pagefault_out_of_memory+0x197/0x197
[  455.575381]  ? __lock_acquire+0x62f/0x4c20
[  455.579611]  ? percpu_ref_get_many+0x240/0x240
[  455.584191]  ? print_usage_bug+0xc0/0xc0
[  455.588264]  ? zap_class+0x640/0x640
[  455.591980]  ? print_usage_bug+0xc0/0xc0
[  455.596036]  ? print_usage_bug+0xc0/0xc0
[  455.600092]  ? zap_class+0x640/0x640
[  455.603802]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.609336]  ? find_held_lock+0x36/0x1c0
[  455.613410]  ? mark_held_locks+0xc7/0x130
[  455.617552]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  455.622642]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  455.627747]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  455.632324]  ? trace_hardirqs_on+0xbd/0x310
[  455.636754]  ? kasan_check_read+0x11/0x20
[  455.640896]  ? ___ratelimit+0x3b4/0x672
[  455.644865]  ? trace_hardirqs_off_caller+0x310/0x310
[  455.649972]  ? trace_hardirqs_on+0x310/0x310
[  455.654376]  ? lock_downgrade+0x900/0x900
[  455.659452]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  455.664554]  ? ___ratelimit+0x3b9/0x672
[  455.668524]  ? idr_get_free+0xf70/0xf70
[  455.672489]  ? find_held_lock+0x36/0x1c0
[  455.676549]  oom_kill_process.cold.27+0x10/0x903
[  455.681299]  ? zap_class+0x640/0x640
[  455.685008]  ? check_preemption_disabled+0x48/0x280
[  455.690018]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  455.694937]  ? kasan_check_read+0x11/0x20
[  455.699077]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.704341]  ? oom_evaluate_task+0x540/0x540
[  455.708742]  ? find_held_lock+0x36/0x1c0
[  455.712802]  ? out_of_memory+0x974/0x1430
[  455.716947]  ? lock_downgrade+0x900/0x900
[  455.721085]  ? check_preemption_disabled+0x48/0x280
[  455.726103]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  455.731024]  ? kasan_check_read+0x11/0x20
[  455.735160]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.740427]  ? rcu_softirq_qs+0x20/0x20
[  455.744399]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.749922]  ? oom_evaluate_task+0x302/0x540
[  455.754324]  out_of_memory+0xa84/0x1430
[  455.759344]  ? oom_killer_disable+0x3a0/0x3a0
[  455.763837]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  455.768763]  ? __ww_mutex_check_waiters+0x160/0x160
[  455.773784]  __alloc_pages_slowpath+0x2354/0x2e10
[  455.778648]  ? warn_alloc+0x120/0x120
[  455.782435]  ? mark_held_locks+0x130/0x130
[  455.786663]  ? find_get_entry+0xaae/0x1120
[  455.790898]  ? filemap_map_pages+0x1a20/0x1a20
[  455.795477]  ? zap_class+0x640/0x640
[  455.799189]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.804721]  ? check_preemption_disabled+0x48/0x280
[  455.809740]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.815282]  ? should_fail+0x22d/0xd01
[  455.819168]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  455.824269]  ? zap_class+0x640/0x640
[  455.828000]  ? __lock_is_held+0xb5/0x140
[  455.832063]  ? mark_held_locks+0x130/0x130
[  455.836290]  ? lock_release+0xa00/0xa00
[  455.840254]  ? perf_trace_sched_process_exec+0x860/0x860
[  455.845692]  ? xa_load+0x2ba/0x460
[  455.849226]  ? lock_downgrade+0x900/0x900
[  455.853373]  ? __might_sleep+0x95/0x190
[  455.858308]  __alloc_pages_nodemask+0xa80/0xde0
[  455.862975]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  455.867988]  ? __page_cache_alloc+0x191/0x5c0
[  455.872473]  ? xa_load+0x2e1/0x460
[  455.876009]  ? xa_clear_mark+0x40/0x40
[  455.879890]  ? zap_class+0x640/0x640
[  455.883608]  ? zap_class+0x640/0x640
[  455.887314]  ? zap_class+0x640/0x640
[  455.891019]  ? __do_page_cache_readahead+0x663/0x810
[  455.896205]  ? find_held_lock+0x36/0x1c0
[  455.900263]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  455.905793]  alloc_pages_current+0x173/0x350
[  455.910194]  __page_cache_alloc+0x38c/0x5c0
[  455.914504]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  455.919425]  ? kasan_check_read+0x11/0x20
[  455.923564]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.929351]  ? generic_perform_write+0x6a0/0x6a0
[  455.934104]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.939644]  ? check_preemption_disabled+0x48/0x280
[  455.944661]  filemap_fault+0x1595/0x25f0
[  455.948727]  ? __lock_page_or_retry+0xa00/0xa00
[  455.953396]  ? mark_held_locks+0x130/0x130
[  455.958082]  ? filemap_map_pages+0xd6b/0x1a20
[  455.962576]  ? lock_downgrade+0x900/0x900
[  455.966721]  ? check_preemption_disabled+0x48/0x280
[  455.971731]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  455.976657]  ? kasan_check_read+0x11/0x20
[  455.980797]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.986066]  ? rcu_softirq_qs+0x20/0x20
[  455.990042]  ? filemap_map_pages+0xd92/0x1a20
[  455.994538]  ? find_get_entries_tag+0x1400/0x1400
[  455.999378]  ? debug_object_destroy+0x2b0/0x2b0
[  456.004041]  ? lock_pi_update_atomic+0x150/0x150
[  456.008787]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.014325]  ? lock_acquire+0x1ed/0x520
[  456.018287]  ? ext4_filemap_fault+0x7a/0xad
[  456.022610]  ? lock_release+0xa00/0xa00
[  456.026574]  ? perf_trace_sched_process_exec+0x860/0x860
[  456.032028]  ? print_usage_bug+0xc0/0xc0
[  456.036080]  ? print_usage_bug+0xc0/0xc0
[  456.040149]  ? down_read+0x8d/0x120
[  456.043766]  ? ext4_filemap_fault+0x7a/0xad
[  456.048090]  ? __down_interruptible+0x700/0x700
[  456.052780]  ext4_filemap_fault+0x82/0xad
[  456.057463]  __do_fault+0x100/0x6b0
[  456.061088]  ? pmd_devmap_trans_unstable+0x220/0x220
[  456.066191]  ? mark_held_locks+0x130/0x130
[  456.070423]  ? mark_held_locks+0x130/0x130
[  456.074648]  ? do_raw_spin_trylock+0x270/0x270
[  456.079229]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.084772]  __handle_mm_fault+0x3ea0/0x5be0
[  456.089173]  ? perf_trace_lock+0x7a0/0x7a0
[  456.093409]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  456.098267]  ? __switch_to_asm+0x34/0x70
[  456.102318]  ? __switch_to_asm+0x34/0x70
[  456.106396]  ? zap_class+0x640/0x640
[  456.110105]  ? zap_class+0x640/0x640
[  456.113814]  ? __x64_sys_futex+0x53e/0x6a0
[  456.118060]  ? find_held_lock+0x36/0x1c0
[  456.122129]  ? handle_mm_fault+0x42a/0xc70
[  456.126358]  ? lock_downgrade+0x900/0x900
[  456.130518]  ? check_preemption_disabled+0x48/0x280
[  456.135529]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  456.140455]  ? kasan_check_read+0x11/0x20
[  456.144598]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  456.149865]  ? rcu_softirq_qs+0x20/0x20
[  456.153832]  ? trace_hardirqs_off_caller+0x310/0x310
[  456.159187]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.164739]  ? check_preemption_disabled+0x48/0x280
[  456.169757]  handle_mm_fault+0x54f/0xc70
[  456.173819]  ? __handle_mm_fault+0x5be0/0x5be0
[  456.178399]  ? find_vma+0x34/0x190
[  456.181939]  __do_page_fault+0x5e8/0xe60
[  456.185993]  ? trace_hardirqs_off+0xb8/0x310
[  456.190407]  do_page_fault+0xf2/0x7e0
[  456.194206]  ? vmalloc_sync_all+0x30/0x30
[  456.198348]  ? error_entry+0x70/0xd0
[  456.202053]  ? trace_hardirqs_off_caller+0xbb/0x310
[  456.207062]  ? trace_hardirqs_on_caller+0xc0/0x310
[  456.211990]  ? syscall_return_slowpath+0x5e0/0x5e0
[  456.216912]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  456.221748]  ? trace_hardirqs_on_caller+0x310/0x310
[  456.226755]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  456.232204]  ? prepare_exit_to_usermode+0x291/0x3b0
[  456.237210]  ? page_fault+0x8/0x30
[  456.240743]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  456.245585]  ? page_fault+0x8/0x30
[  456.249121]  page_fault+0x1e/0x30
[  456.252587] RIP: 0033:0x45ddf3
[  456.256132] Code: Bad RIP value.
[  456.259487] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  456.264843] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  456.272106] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  456.279363] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  456.286623] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  456.293884] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  456.301159] warn_alloc_show_mem: 1 callbacks suppressed
[  456.301168] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  456.301169] Mem-Info:
[  456.301197] active_anon:54141 inactive_anon:292 isolated_anon:0
[  456.301197]  active_file:12 inactive_file:13 isolated_file:0
[  456.301197]  unevictable:0 dirty:0 writeback:0 unstable:0
[  456.301197]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  456.301197]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  456.301197]  free:13705 free_pcp:178 free_cma:0
[  456.306522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  456.306528] Call Trace:
[  456.313278] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  456.315672]  dump_stack+0x244/0x39d
[  456.348515] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  456.358219]  ? dump_stack_print_info.cold.1+0x20/0x20
[  456.360860] lowmem_reserve[]: 0 2818 6321 6321
[  456.388525]  warn_alloc.cold.116+0xb7/0x1bd
[  456.392113] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  456.418212]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  456.423365] lowmem_reserve[]: 0 0 3503 3503
[  456.427942]  ? lock_downgrade+0x900/0x900
[  456.432236] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  456.460048]  ? trace_hardirqs_off+0xb8/0x310
[  456.464858] lowmem_reserve[]: 0 0 0 0
[  456.469173]  ? trace_hardirqs_off+0xb8/0x310
[  456.473290] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  456.502255]  __alloc_pages_slowpath+0x26e8/0x2e10
[  456.506644] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  456.510451]  ? warn_alloc+0x120/0x120
[  456.514803] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  456.528327]  ? warn_alloc+0x120/0x120
[  456.533140] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  456.548377]  ? warn_alloc+0x120/0x120
[  456.552155] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  456.566725]  ? trace_hardirqs_off+0xb8/0x310
[  456.566742]  ? print_usage_bug+0xc0/0xc0
[  456.570526] 366 total pagecache pages
[  456.579354]  ? print_usage_bug+0xc0/0xc0
[  456.583126] 0 pages in swap cache
[  456.591684]  ? __lock_acquire+0x62f/0x4c20
[  456.596069] Swap cache stats: add 0, delete 0, find 0/0
[  456.600108]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.603876] Free swap  = 0kB
[  456.607925]  ? should_fail+0x22d/0xd01
[  456.611345] Total swap = 0kB
[  456.615578]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  456.620904] 1965979 pages RAM
[  456.626423]  ? __lock_acquire+0x62f/0x4c20
[  456.629410] 0 pages HighMem/MovableOnly
[  456.633279]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  456.636266] 342854 pages reserved
[  456.641350]  ? __lock_acquire+0x62f/0x4c20
[  456.644424] 0 pages cma reserved
[  456.648639]  ? should_fail+0x22d/0xd01
[  456.652638] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  456.657936]  ? mark_held_locks+0x130/0x130
[  456.661435] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  456.665586]  ? mark_held_locks+0x130/0x130
[  456.668934] syz-fuzzer cpuset=/ mems_allowed=0
[  456.672814]  ? zap_class+0x640/0x640
[  456.706167]  ? ret_from_fork+0x3a/0x50
[  456.710043]  ? __lock_acquire+0x62f/0x4c20
[  456.714275]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.719804]  ? check_preemption_disabled+0x48/0x280
[  456.724818]  ? __lock_is_held+0xb5/0x140
[  456.728874]  __alloc_pages_nodemask+0xa80/0xde0
[  456.733536]  ? zap_class+0x640/0x640
[  456.737257]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  456.742285]  ? find_held_lock+0x36/0x1c0
[  456.746359]  ? ____cache_alloc_node+0x1c7/0x1e0
[  456.751038]  ? lock_downgrade+0x900/0x900
[  456.755189]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.761059]  cache_grow_begin+0xa5/0x8c0
[  456.765109]  ? do_raw_spin_unlock+0xa7/0x330
[  456.769516]  fallback_alloc+0x204/0x2e0
[  456.773496]  ____cache_alloc_node+0x1c7/0x1e0
[  456.777986]  kmem_cache_alloc_node+0xe3/0x730
[  456.782477]  ? mark_held_locks+0xc7/0x130
[  456.786627]  __alloc_skb+0x119/0x770
[  456.790336]  ? netdev_alloc_frag+0x1f0/0x1f0
[  456.794732]  ? do_raw_spin_trylock+0x270/0x270
[  456.799308]  ? kmem_cache_alloc_trace+0x353/0x750
[  456.804164]  ? queue_work_on+0x12c/0x1e0
[  456.808221]  ? switchdev_port_obj_del+0xdc/0x440
[  456.812971]  ? switchdev_trans_item_enqueue+0x260/0x260
[  456.818333]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  456.823347]  __br_mdb_notify+0x4ff/0x15d0
[  456.827489]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  456.832607]  ? __br_mdb_add+0x7f0/0x7f0
[  456.836590]  ? mark_held_locks+0x130/0x130
[  456.840823]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  456.845944]  ? debug_object_assert_init+0x368/0x4b0
[  456.850952]  ? debug_object_init_on_stack+0x20/0x20
[  456.856271]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.861812]  br_mdb_notify+0x310/0x410
[  456.865698]  ? br_mdb_dump+0x27b0/0x27b0
[  456.869764]  br_multicast_del_pg+0x3df/0x790
[  456.874173]  ? br_mdb_ip_get+0x940/0x940
[  456.878230]  ? rwlock_bug.part.2+0x90/0x90
[  456.882463]  ? __lock_is_held+0xb5/0x140
[  456.886536]  br_multicast_port_group_expired+0x189/0x1e0
[  456.891985]  call_timer_fn+0x272/0x920
[  456.895870]  ? br_multicast_del_pg+0x790/0x790
[  456.900446]  ? process_timeout+0x40/0x40
[  456.904611]  ? __run_timers+0x7da/0xc70
[  456.908585]  ? _raw_spin_unlock_irq+0x27/0x80
[  456.913087]  ? _raw_spin_unlock_irq+0x27/0x80
[  456.917576]  ? br_multicast_del_pg+0x790/0x790
[  456.922153]  ? lockdep_hardirqs_on+0x296/0x5b0
[  456.926731]  ? trace_hardirqs_on+0xbd/0x310
[  456.931048]  ? kasan_check_read+0x11/0x20
[  456.935185]  ? __run_timers+0x7da/0xc70
[  456.939157]  ? trace_hardirqs_off_caller+0x310/0x310
[  456.944263]  ? br_multicast_del_pg+0x790/0x790
[  456.948843]  ? br_multicast_del_pg+0x790/0x790
[  456.953416]  __run_timers+0x7e5/0xc70
[  456.957512]  ? timer_fixup_init+0x70/0x70
[  456.961659]  ? _raw_spin_unlock_irq+0x27/0x80
[  456.966145]  ? _raw_spin_unlock_irq+0x27/0x80
[  456.970633]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  456.975210]  ? trace_hardirqs_on+0xbd/0x310
[  456.979532]  ? kasan_check_read+0x11/0x20
[  456.983685]  ? finish_task_switch+0x1f4/0x910
[  456.988186]  ? trace_hardirqs_off_caller+0x310/0x310
[  456.993277]  ? compat_start_thread+0x80/0x80
[  456.997691]  ? pvclock_read_flags+0x160/0x160
[  457.002174]  ? __switch_to_asm+0x34/0x70
[  457.006226]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.011755]  ? check_preemption_disabled+0x48/0x280
[  457.016863]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  457.022389]  ? rcu_pm_notify+0xc0/0xc0
[  457.026266]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.031796]  ? check_preemption_disabled+0x48/0x280
[  457.036805]  run_timer_softirq+0x52/0xb0
[  457.040855]  ? rcu_read_lock_sched_held+0x14f/0x180
[  457.045859]  __do_softirq+0x308/0xb7e
[  457.049652]  ? trace_hardirqs_on_caller+0xc0/0x310
[  457.054583]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  457.060018]  ? trace_hardirqs_on+0x310/0x310
[  457.064423]  ? schedule+0x108/0x460
[  457.068051]  ? trace_hardirqs_off+0xb8/0x310
[  457.072455]  ? smpboot_thread_fn+0x68b/0xa00
[  457.076860]  ? trace_hardirqs_on+0x310/0x310
[  457.081263]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  457.086803]  ? check_preemption_disabled+0x48/0x280
[  457.091811]  ? takeover_tasklets+0xa90/0xa90
[  457.096223]  run_ksoftirqd+0x5e/0x100
[  457.100013]  smpboot_thread_fn+0x68b/0xa00
[  457.104236]  ? sort_range+0x30/0x30
[  457.107850]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  457.112943]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  457.118467]  ? __kthread_parkme+0xfb/0x1a0
[  457.122696]  ? sort_range+0x30/0x30
[  457.126310]  kthread+0x35a/0x440
[  457.129663]  ? kthread_stop+0x900/0x900
[  457.133627]  ret_from_fork+0x3a/0x50
[  457.137347] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  457.137478] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  457.144268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  457.154552] ksoftirqd/0 cpuset=/ mems_allowed=0
[  457.164525] Call Trace:
[  457.171772]  <IRQ>
[  457.173919]  dump_stack+0x244/0x39d
[  457.177547]  ? dump_stack_print_info.cold.1+0x20/0x20
[  457.182743]  warn_alloc.cold.116+0xb7/0x1bd
[  457.187057]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  457.191896]  ? lock_downgrade+0x900/0x900
[  457.196045]  ? trace_hardirqs_off+0xb8/0x310
[  457.200453]  ? trace_hardirqs_off+0xb8/0x310
[  457.204861]  __alloc_pages_slowpath+0x26e8/0x2e10
[  457.209720]  ? warn_alloc+0x120/0x120
[  457.213521]  ? print_usage_bug+0xc0/0xc0
[  457.217575]  ? warn_alloc+0x120/0x120
[  457.221369]  ? warn_alloc+0x120/0x120
[  457.225163]  ? print_usage_bug+0xc0/0xc0
[  457.229213]  ? kvm_clock_read+0x18/0x30
[  457.233185]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  457.238198]  ? print_usage_bug+0xc0/0xc0
[  457.242255]  ? __lock_acquire+0x62f/0x4c20
[  457.246487]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  457.252021]  ? should_fail+0x22d/0xd01
[  457.256539]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  457.261810]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  457.266906]  ? __lock_acquire+0x62f/0x4c20
[  457.271134]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  457.276225]  ? __lock_acquire+0x62f/0x4c20
[  457.280577]  ? should_fail+0x22d/0xd01
[  457.284454]  ? rcu_irq_exit+0x1a2/0x390
[  457.288432]  ? mark_held_locks+0x130/0x130
[  457.292663]  ? mark_held_locks+0x130/0x130
[  457.296892]  ? mark_held_locks+0xc7/0x130
[  457.301038]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  457.306046]  ? zap_class+0x640/0x640
[  457.309752]  ? print_usage_bug+0xc0/0xc0
[  457.313807]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.319332]  ? check_preemption_disabled+0x48/0x280
[  457.324346]  ? __lock_is_held+0xb5/0x140
[  457.328407]  __alloc_pages_nodemask+0xa80/0xde0
[  457.333065]  ? zap_class+0x640/0x640
[  457.336771]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  457.341798]  ? find_held_lock+0x36/0x1c0
[  457.345860]  ? ____cache_alloc_node+0x1c7/0x1e0
[  457.350531]  ? lock_downgrade+0x900/0x900
[  457.354676]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.360978]  cache_grow_begin+0xa5/0x8c0
[  457.365031]  ? do_raw_spin_unlock+0xa7/0x330
[  457.369433]  fallback_alloc+0x204/0x2e0
[  457.373423]  ____cache_alloc_node+0x1c7/0x1e0
[  457.377915]  kmem_cache_alloc_node+0xe3/0x730
[  457.382403]  ? ipv6_get_ifaddr+0x42e/0x620
[  457.386639]  __alloc_skb+0x119/0x770
[  457.390344]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  457.395617]  ? netdev_alloc_frag+0x1f0/0x1f0
[  457.400025]  ? lock_downgrade+0x900/0x900
[  457.404175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.409708]  ? refcount_sub_and_test_checked+0x203/0x310
[  457.415156]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  457.420598]  ? addrconf_rs_timer+0x690/0x690
[  457.425025]  ndisc_alloc_skb+0x144/0x340
[  457.429083]  ndisc_send_rs+0x331/0x6e0
[  457.432968]  addrconf_rs_timer+0x314/0x690
[  457.437200]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  457.441439]  call_timer_fn+0x272/0x920
[  457.445317]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  457.449542]  ? process_timeout+0x40/0x40
[  457.453604]  ? mark_held_locks+0xc7/0x130
[  457.458539]  ? _raw_spin_unlock_irq+0x27/0x80
[  457.463027]  ? _raw_spin_unlock_irq+0x27/0x80
[  457.467513]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  457.471735]  ? lockdep_hardirqs_on+0x296/0x5b0
[  457.476306]  ? trace_hardirqs_on+0xbd/0x310
[  457.480627]  ? kasan_check_read+0x11/0x20
[  457.484763]  ? __run_timers+0x7da/0xc70
[  457.488733]  ? trace_hardirqs_off_caller+0x310/0x310
[  457.493842]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  457.498070]  __run_timers+0x7e5/0xc70
[  457.501881]  ? timer_fixup_init+0x70/0x70
[  457.506040]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  457.511044]  ? zap_class+0x640/0x640
[  457.514750]  ? print_usage_bug+0xc0/0xc0
[  457.518801]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  457.523989]  ? find_held_lock+0x36/0x1c0
[  457.528052]  ? zap_class+0x640/0x640
[  457.531765]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.537383]  ? check_preemption_disabled+0x48/0x280
[  457.542406]  ? __lock_is_held+0xb5/0x140
[  457.546467]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.552009]  ? check_preemption_disabled+0x48/0x280
[  457.557536]  run_timer_softirq+0x52/0xb0
[  457.561591]  ? rcu_read_lock_sched_held+0x14f/0x180
[  457.566600]  __do_softirq+0x308/0xb7e
[  457.570396]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  457.574880]  ? lock_downgrade+0x900/0x900
[  457.579032]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  457.584145]  ? pvclock_read_flags+0x160/0x160
[  457.588636]  ? lapic_next_event+0x5a/0x90
[  457.592857]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.598391]  ? kvm_clock_read+0x18/0x30
[  457.602358]  ? kvm_sched_clock_read+0x9/0x20
[  457.606758]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  457.612285]  ? check_preemption_disabled+0x48/0x280
[  457.617301]  irq_exit+0x17f/0x1c0
[  457.620749]  smp_apic_timer_interrupt+0x1cb/0x760
[  457.625585]  ? smp_reschedule_interrupt+0x109/0x650
[  457.630606]  ? smp_call_function_single_interrupt+0x650/0x650
[  457.636488]  ? interrupt_entry+0xb5/0xc0
[  457.640547]  ? trace_hardirqs_off_caller+0xbb/0x310
[  457.645556]  ? trace_hardirqs_off_caller+0xbb/0x310
[  457.650567]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  457.655400]  ? trace_hardirqs_on_caller+0x310/0x310
[  457.661213]  ? trace_hardirqs_on_caller+0x310/0x310
[  457.666222]  ? task_prio+0x50/0x50
[  457.669758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.675291]  ? check_preemption_disabled+0x48/0x280
[  457.680305]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  457.685148]  apic_timer_interrupt+0xf/0x20
[  457.689367]  </IRQ>
[  457.691597] RIP: 0010:dump_stack+0x358/0x39d
[  457.696002] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  457.714894] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  457.722597] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  457.729854] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  457.737158] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  457.744413] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  457.751669] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  457.760147]  ? dump_stack+0x34f/0x39d
[  457.763958]  ? dump_stack_print_info.cold.1+0x20/0x20
[  457.769159]  ? mark_held_locks+0x130/0x130
[  457.773404]  ? mark_held_locks+0x130/0x130
[  457.777641]  dump_header+0x27b/0xf72
[  457.781358]  ? pagefault_out_of_memory+0x197/0x197
[  457.786307]  ? __lock_acquire+0x62f/0x4c20
[  457.790539]  ? percpu_ref_get_many+0x240/0x240
[  457.795120]  ? print_usage_bug+0xc0/0xc0
[  457.799177]  ? zap_class+0x640/0x640
[  457.802885]  ? print_usage_bug+0xc0/0xc0
[  457.806934]  ? print_usage_bug+0xc0/0xc0
[  457.810984]  ? zap_class+0x640/0x640
[  457.814699]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.820235]  ? find_held_lock+0x36/0x1c0
[  457.824299]  ? mark_held_locks+0xc7/0x130
[  457.828442]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  457.833545]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  457.838640]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  457.843232]  ? trace_hardirqs_on+0xbd/0x310
[  457.847547]  ? kasan_check_read+0x11/0x20
[  457.851687]  ? ___ratelimit+0x3b4/0x672
[  457.856022]  ? trace_hardirqs_off_caller+0x310/0x310
[  457.861116]  ? trace_hardirqs_on+0x310/0x310
[  457.865522]  ? lock_downgrade+0x900/0x900
[  457.869663]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  457.874754]  ? ___ratelimit+0x3b9/0x672
[  457.878727]  ? idr_get_free+0xf70/0xf70
[  457.882696]  ? find_held_lock+0x36/0x1c0
[  457.886757]  oom_kill_process.cold.27+0x10/0x903
[  457.891502]  ? zap_class+0x640/0x640
[  457.895208]  ? check_preemption_disabled+0x48/0x280
[  457.900229]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  457.905166]  ? kasan_check_read+0x11/0x20
[  457.909304]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  457.914573]  ? oom_evaluate_task+0x540/0x540
[  457.918983]  ? find_held_lock+0x36/0x1c0
[  457.923041]  ? out_of_memory+0x974/0x1430
[  457.927663]  ? lock_downgrade+0x900/0x900
[  457.931803]  ? check_preemption_disabled+0x48/0x280
[  457.936814]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  457.941736]  ? kasan_check_read+0x11/0x20
[  457.945872]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  457.951134]  ? rcu_softirq_qs+0x20/0x20
[  457.955100]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  457.961143]  ? oom_evaluate_task+0x302/0x540
[  457.965541]  out_of_memory+0xa84/0x1430
[  457.969511]  ? oom_killer_disable+0x3a0/0x3a0
[  457.974002]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  457.978926]  ? __ww_mutex_check_waiters+0x160/0x160
[  457.983947]  __alloc_pages_slowpath+0x2354/0x2e10
[  457.988812]  ? warn_alloc+0x120/0x120
[  457.992603]  ? mark_held_locks+0x130/0x130
[  457.996834]  ? find_get_entry+0xaae/0x1120
[  458.001068]  ? filemap_map_pages+0x1a20/0x1a20
[  458.005658]  ? zap_class+0x640/0x640
[  458.009370]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.014895]  ? check_preemption_disabled+0x48/0x280
[  458.019901]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  458.025423]  ? should_fail+0x22d/0xd01
[  458.029301]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  458.034397]  ? zap_class+0x640/0x640
[  458.038126]  ? __lock_is_held+0xb5/0x140
[  458.042185]  ? mark_held_locks+0x130/0x130
[  458.046410]  ? lock_release+0xa00/0xa00
[  458.050372]  ? perf_trace_sched_process_exec+0x860/0x860
[  458.056761]  ? xa_load+0x2ba/0x460
[  458.060313]  ? lock_downgrade+0x900/0x900
[  458.064462]  ? __might_sleep+0x95/0x190
[  458.068432]  __alloc_pages_nodemask+0xa80/0xde0
[  458.073104]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  458.078114]  ? __page_cache_alloc+0x191/0x5c0
[  458.082601]  ? xa_load+0x2e1/0x460
[  458.086133]  ? xa_clear_mark+0x40/0x40
[  458.090010]  ? zap_class+0x640/0x640
[  458.093725]  ? zap_class+0x640/0x640
[  458.097442]  ? zap_class+0x640/0x640
[  458.101161]  ? __do_page_cache_readahead+0x663/0x810
[  458.106272]  ? find_held_lock+0x36/0x1c0
[  458.110347]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  458.115880]  alloc_pages_current+0x173/0x350
[  458.120299]  __page_cache_alloc+0x38c/0x5c0
[  458.124622]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  458.129541]  ? kasan_check_read+0x11/0x20
[  458.133681]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  458.138952]  ? generic_perform_write+0x6a0/0x6a0
[  458.143700]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  458.149230]  ? check_preemption_disabled+0x48/0x280
[  458.154247]  filemap_fault+0x1595/0x25f0
[  458.159048]  ? __lock_page_or_retry+0xa00/0xa00
[  458.163717]  ? mark_held_locks+0x130/0x130
[  458.167955]  ? filemap_map_pages+0xd6b/0x1a20
[  458.172452]  ? lock_downgrade+0x900/0x900
[  458.176595]  ? check_preemption_disabled+0x48/0x280
[  458.181614]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  458.186534]  ? kasan_check_read+0x11/0x20
[  458.190678]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  458.195960]  ? rcu_softirq_qs+0x20/0x20
[  458.199943]  ? filemap_map_pages+0xd92/0x1a20
[  458.204622]  ? find_get_entries_tag+0x1400/0x1400
[  458.209466]  ? debug_object_destroy+0x2b0/0x2b0
[  458.214135]  ? lock_pi_update_atomic+0x150/0x150
[  458.218885]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.224423]  ? lock_acquire+0x1ed/0x520
[  458.228396]  ? ext4_filemap_fault+0x7a/0xad
[  458.232721]  ? lock_release+0xa00/0xa00
[  458.236686]  ? perf_trace_sched_process_exec+0x860/0x860
[  458.242218]  ? print_usage_bug+0xc0/0xc0
[  458.246278]  ? print_usage_bug+0xc0/0xc0
[  458.250344]  ? down_read+0x8d/0x120
[  458.253966]  ? ext4_filemap_fault+0x7a/0xad
[  458.258785]  ? __down_interruptible+0x700/0x700
[  458.263465]  ext4_filemap_fault+0x82/0xad
[  458.267608]  __do_fault+0x100/0x6b0
[  458.271238]  ? pmd_devmap_trans_unstable+0x220/0x220
[  458.276337]  ? mark_held_locks+0x130/0x130
[  458.280569]  ? mark_held_locks+0x130/0x130
[  458.284799]  ? do_raw_spin_trylock+0x270/0x270
[  458.289384]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  458.294921]  __handle_mm_fault+0x3ea0/0x5be0
[  458.299324]  ? perf_trace_lock+0x7a0/0x7a0
[  458.303570]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  458.308412]  ? __switch_to_asm+0x34/0x70
[  458.312470]  ? __switch_to_asm+0x34/0x70
[  458.316537]  ? zap_class+0x640/0x640
[  458.320261]  ? zap_class+0x640/0x640
[  458.323971]  ? __x64_sys_futex+0x53e/0x6a0
[  458.328206]  ? find_held_lock+0x36/0x1c0
[  458.332266]  ? handle_mm_fault+0x42a/0xc70
[  458.336497]  ? lock_downgrade+0x900/0x900
[  458.340636]  ? check_preemption_disabled+0x48/0x280
[  458.345645]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  458.350571]  ? kasan_check_read+0x11/0x20
[  458.354710]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  458.360738]  ? rcu_softirq_qs+0x20/0x20
[  458.364710]  ? trace_hardirqs_off_caller+0x310/0x310
[  458.369805]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  458.375335]  ? check_preemption_disabled+0x48/0x280
[  458.380351]  handle_mm_fault+0x54f/0xc70
[  458.384413]  ? __handle_mm_fault+0x5be0/0x5be0
[  458.388996]  ? find_vma+0x34/0x190
[  458.392550]  __do_page_fault+0x5e8/0xe60
[  458.396602]  ? trace_hardirqs_off+0xb8/0x310
[  458.401030]  do_page_fault+0xf2/0x7e0
[  458.404820]  ? vmalloc_sync_all+0x30/0x30
[  458.408965]  ? error_entry+0x70/0xd0
[  458.412673]  ? trace_hardirqs_off_caller+0xbb/0x310
[  458.417770]  ? trace_hardirqs_on_caller+0xc0/0x310
[  458.422697]  ? syscall_return_slowpath+0x5e0/0x5e0
[  458.427622]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  458.432463]  ? trace_hardirqs_on_caller+0x310/0x310
[  458.437473]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  458.442921]  ? prepare_exit_to_usermode+0x291/0x3b0
[  458.447932]  ? page_fault+0x8/0x30
[  458.451493]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  458.457090]  ? page_fault+0x8/0x30
[  458.460635]  page_fault+0x1e/0x30
[  458.464077] RIP: 0033:0x45ddf3
[  458.467272] Code: Bad RIP value.
[  458.470624] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  458.475978] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  458.483249] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  458.490510] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  458.497771] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  458.505029] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  458.512308] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  458.512312] warn_alloc_show_mem: 1 callbacks suppressed
[  458.512317] Mem-Info:
[  458.519055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  458.524412] active_anon:54141 inactive_anon:292 isolated_anon:0
[  458.524412]  active_file:12 inactive_file:13 isolated_file:0
[  458.524412]  unevictable:0 dirty:0 writeback:0 unstable:0
[  458.524412]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  458.524412]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  458.524412]  free:13705 free_pcp:178 free_cma:0
[  458.526781] Call Trace:
[  458.536161] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  458.569364]  dump_stack+0x244/0x39d
[  458.571932] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  458.599589]  ? dump_stack_print_info.cold.1+0x20/0x20
[  458.603188] lowmem_reserve[]: 0 2818 6321 6321
[  458.629292]  warn_alloc.cold.116+0xb7/0x1bd
[  458.634444] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  458.639013]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  458.643301] lowmem_reserve[]: 0 0 3503 3503
[  458.671094]  ? lock_downgrade+0x900/0x900
[  458.675906] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  458.680222]  ? trace_hardirqs_off+0xb8/0x310
[  458.684334] lowmem_reserve[]: 0 0 0 0
[  458.713297]  ? trace_hardirqs_off+0xb8/0x310
[  458.717670] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  458.721461]  __alloc_pages_slowpath+0x26e8/0x2e10
[  458.725834] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  458.739367]  ? warn_alloc+0x120/0x120
[  458.744155] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  458.760145]  ? warn_alloc+0x120/0x120
[  458.763918] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  458.778124]  ? warn_alloc+0x120/0x120
[  458.781899] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  458.790708]  ? trace_hardirqs_off+0xb8/0x310
[  458.794477] 366 total pagecache pages
[  458.803036]  ? print_usage_bug+0xc0/0xc0
[  458.807422] 0 pages in swap cache
[  458.811203]  ? print_usage_bug+0xc0/0xc0
[  458.815230] Swap cache stats: add 0, delete 0, find 0/0
[  458.818667]  ? __lock_acquire+0x62f/0x4c20
[  458.822711] Free swap  = 0kB
[  458.828057]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  458.832258] Total swap = 0kB
[  458.835268]  ? should_fail+0x22d/0xd01
[  458.840773] 1965979 pages RAM
[  458.843779]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  458.847635] 0 pages HighMem/MovableOnly
[  458.850722]  ? __lock_acquire+0x62f/0x4c20
[  458.856423] 342854 pages reserved
[  458.856430] 0 pages cma reserved
[  458.860396]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  458.864656] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  458.868036]  ? __lock_acquire+0x62f/0x4c20
[  458.868050]  ? should_fail+0x22d/0xd01
[  458.871464] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  458.876484]  ? mark_held_locks+0x130/0x130
[  458.882945] syz-fuzzer cpuset=/ mems_allowed=0
[  458.887169]  ? mark_held_locks+0x130/0x130
[  458.914229]  ? zap_class+0x640/0x640
[  458.917938]  ? ret_from_fork+0x3a/0x50
[  458.921817]  ? __lock_acquire+0x62f/0x4c20
[  458.926055]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.931584]  ? check_preemption_disabled+0x48/0x280
[  458.936605]  ? __lock_is_held+0xb5/0x140
[  458.940661]  __alloc_pages_nodemask+0xa80/0xde0
[  458.945318]  ? zap_class+0x640/0x640
[  458.949026]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  458.954041]  ? find_held_lock+0x36/0x1c0
[  458.958423]  ? ____cache_alloc_node+0x1c7/0x1e0
[  458.963105]  ? lock_downgrade+0x900/0x900
[  458.967251]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.972787]  cache_grow_begin+0xa5/0x8c0
[  458.976841]  ? do_raw_spin_unlock+0xa7/0x330
[  458.981250]  fallback_alloc+0x204/0x2e0
[  458.985223]  ____cache_alloc_node+0x1c7/0x1e0
[  458.989711]  kmem_cache_alloc_node+0xe3/0x730
[  458.994192]  ? mark_held_locks+0xc7/0x130
[  458.998338]  __alloc_skb+0x119/0x770
[  459.002047]  ? netdev_alloc_frag+0x1f0/0x1f0
[  459.006448]  ? do_raw_spin_trylock+0x270/0x270
[  459.011020]  ? kmem_cache_alloc_trace+0x353/0x750
[  459.015859]  ? queue_work_on+0x12c/0x1e0
[  459.019918]  ? switchdev_port_obj_del+0xdc/0x440
[  459.024664]  ? switchdev_trans_item_enqueue+0x260/0x260
[  459.030025]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  459.035040]  __br_mdb_notify+0x4ff/0x15d0
[  459.039177]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  459.044279]  ? __br_mdb_add+0x7f0/0x7f0
[  459.048249]  ? mark_held_locks+0x130/0x130
[  459.052482]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  459.057892]  ? debug_object_assert_init+0x368/0x4b0
[  459.062900]  ? debug_object_init_on_stack+0x20/0x20
[  459.067909]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.073443]  br_mdb_notify+0x310/0x410
[  459.077325]  ? br_mdb_dump+0x27b0/0x27b0
[  459.081427]  br_multicast_del_pg+0x3df/0x790
[  459.085840]  ? br_mdb_ip_get+0x940/0x940
[  459.089890]  ? rwlock_bug.part.2+0x90/0x90
[  459.094120]  ? __lock_is_held+0xb5/0x140
[  459.098265]  br_multicast_port_group_expired+0x189/0x1e0
[  459.103711]  call_timer_fn+0x272/0x920
[  459.107592]  ? br_multicast_del_pg+0x790/0x790
[  459.112163]  ? process_timeout+0x40/0x40
[  459.116222]  ? __run_timers+0x7da/0xc70
[  459.120201]  ? _raw_spin_unlock_irq+0x27/0x80
[  459.124687]  ? _raw_spin_unlock_irq+0x27/0x80
[  459.129173]  ? br_multicast_del_pg+0x790/0x790
[  459.133748]  ? lockdep_hardirqs_on+0x296/0x5b0
[  459.138326]  ? trace_hardirqs_on+0xbd/0x310
[  459.142637]  ? kasan_check_read+0x11/0x20
[  459.146771]  ? __run_timers+0x7da/0xc70
[  459.150737]  ? trace_hardirqs_off_caller+0x310/0x310
[  459.156124]  ? br_multicast_del_pg+0x790/0x790
[  459.160698]  ? br_multicast_del_pg+0x790/0x790
[  459.165266]  __run_timers+0x7e5/0xc70
[  459.169066]  ? timer_fixup_init+0x70/0x70
[  459.173216]  ? _raw_spin_unlock_irq+0x27/0x80
[  459.177706]  ? _raw_spin_unlock_irq+0x27/0x80
[  459.182195]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  459.186774]  ? trace_hardirqs_on+0xbd/0x310
[  459.191087]  ? kasan_check_read+0x11/0x20
[  459.195228]  ? finish_task_switch+0x1f4/0x910
[  459.199715]  ? trace_hardirqs_off_caller+0x310/0x310
[  459.204809]  ? compat_start_thread+0x80/0x80
[  459.209234]  ? pvclock_read_flags+0x160/0x160
[  459.213721]  ? __switch_to_asm+0x34/0x70
[  459.217777]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.223310]  ? check_preemption_disabled+0x48/0x280
[  459.228331]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  459.233878]  ? rcu_pm_notify+0xc0/0xc0
[  459.237757]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.243286]  ? check_preemption_disabled+0x48/0x280
[  459.248304]  run_timer_softirq+0x52/0xb0
[  459.252360]  ? rcu_read_lock_sched_held+0x14f/0x180
[  459.257678]  __do_softirq+0x308/0xb7e
[  459.261475]  ? trace_hardirqs_on_caller+0xc0/0x310
[  459.266404]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  459.271497]  ? trace_hardirqs_on+0x310/0x310
[  459.275904]  ? schedule+0x108/0x460
[  459.279532]  ? trace_hardirqs_off+0xb8/0x310
[  459.283935]  ? smpboot_thread_fn+0x68b/0xa00
[  459.288335]  ? trace_hardirqs_on+0x310/0x310
[  459.292738]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  459.298268]  ? check_preemption_disabled+0x48/0x280
[  459.303279]  ? takeover_tasklets+0xa90/0xa90
[  459.307765]  run_ksoftirqd+0x5e/0x100
[  459.311556]  smpboot_thread_fn+0x68b/0xa00
[  459.315785]  ? sort_range+0x30/0x30
[  459.319408]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  459.324506]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  459.330034]  ? __kthread_parkme+0xfb/0x1a0
[  459.334274]  ? sort_range+0x30/0x30
[  459.337892]  kthread+0x35a/0x440
[  459.341248]  ? kthread_stop+0x900/0x900
[  459.345211]  ret_from_fork+0x3a/0x50
[  459.348945] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  459.349073] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  459.356666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  459.366953] ksoftirqd/0 cpuset=/ mems_allowed=0
[  459.376286] Call Trace:
[  459.383493]  <IRQ>
[  459.385636]  dump_stack+0x244/0x39d
[  459.389261]  ? dump_stack_print_info.cold.1+0x20/0x20
[  459.394453]  warn_alloc.cold.116+0xb7/0x1bd
[  459.398769]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  459.403617]  ? lock_downgrade+0x900/0x900
[  459.407764]  ? trace_hardirqs_off+0xb8/0x310
[  459.412170]  ? trace_hardirqs_off+0xb8/0x310
[  459.416578]  __alloc_pages_slowpath+0x26e8/0x2e10
[  459.421439]  ? warn_alloc+0x120/0x120
[  459.425230]  ? print_usage_bug+0xc0/0xc0
[  459.429283]  ? warn_alloc+0x120/0x120
[  459.433080]  ? warn_alloc+0x120/0x120
[  459.436889]  ? print_usage_bug+0xc0/0xc0
[  459.440951]  ? kvm_clock_read+0x18/0x30
[  459.444917]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  459.449926]  ? print_usage_bug+0xc0/0xc0
[  459.453977]  ? __lock_acquire+0x62f/0x4c20
[  459.458549]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  459.464083]  ? should_fail+0x22d/0xd01
[  459.467962]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  459.473234]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  459.478327]  ? __lock_acquire+0x62f/0x4c20
[  459.482644]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  459.487738]  ? __lock_acquire+0x62f/0x4c20
[  459.491960]  ? should_fail+0x22d/0xd01
[  459.495838]  ? rcu_irq_exit+0x1a2/0x390
[  459.499814]  ? mark_held_locks+0x130/0x130
[  459.504042]  ? mark_held_locks+0x130/0x130
[  459.508275]  ? mark_held_locks+0xc7/0x130
[  459.512416]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  459.517422]  ? zap_class+0x640/0x640
[  459.521130]  ? print_usage_bug+0xc0/0xc0
[  459.525187]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.530713]  ? check_preemption_disabled+0x48/0x280
[  459.535760]  ? __lock_is_held+0xb5/0x140
[  459.539818]  __alloc_pages_nodemask+0xa80/0xde0
[  459.544475]  ? zap_class+0x640/0x640
[  459.548182]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  459.553199]  ? find_held_lock+0x36/0x1c0
[  459.557588]  ? ____cache_alloc_node+0x1c7/0x1e0
[  459.562253]  ? lock_downgrade+0x900/0x900
[  459.566397]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.571931]  cache_grow_begin+0xa5/0x8c0
[  459.575986]  ? do_raw_spin_unlock+0xa7/0x330
[  459.580397]  fallback_alloc+0x204/0x2e0
[  459.584376]  ____cache_alloc_node+0x1c7/0x1e0
[  459.588879]  kmem_cache_alloc_node+0xe3/0x730
[  459.593375]  ? ipv6_get_ifaddr+0x42e/0x620
[  459.597609]  __alloc_skb+0x119/0x770
[  459.601312]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  459.606585]  ? netdev_alloc_frag+0x1f0/0x1f0
[  459.610987]  ? lock_downgrade+0x900/0x900
[  459.615135]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.620663]  ? refcount_sub_and_test_checked+0x203/0x310
[  459.626108]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  459.631552]  ? addrconf_rs_timer+0x690/0x690
[  459.635963]  ndisc_alloc_skb+0x144/0x340
[  459.640025]  ndisc_send_rs+0x331/0x6e0
[  459.643927]  addrconf_rs_timer+0x314/0x690
[  459.648170]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  459.652431]  call_timer_fn+0x272/0x920
[  459.657271]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  459.661498]  ? process_timeout+0x40/0x40
[  459.665560]  ? mark_held_locks+0xc7/0x130
[  459.669816]  ? _raw_spin_unlock_irq+0x27/0x80
[  459.674305]  ? _raw_spin_unlock_irq+0x27/0x80
[  459.678789]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  459.683014]  ? lockdep_hardirqs_on+0x296/0x5b0
[  459.687587]  ? trace_hardirqs_on+0xbd/0x310
[  459.691900]  ? kasan_check_read+0x11/0x20
[  459.696037]  ? __run_timers+0x7da/0xc70
[  459.700002]  ? trace_hardirqs_off_caller+0x310/0x310
[  459.705099]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  459.709330]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  459.713564]  __run_timers+0x7e5/0xc70
[  459.717384]  ? timer_fixup_init+0x70/0x70
[  459.721546]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  459.726558]  ? zap_class+0x640/0x640
[  459.730268]  ? print_usage_bug+0xc0/0xc0
[  459.734324]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  459.739518]  ? find_held_lock+0x36/0x1c0
[  459.743573]  ? zap_class+0x640/0x640
[  459.747285]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.752818]  ? check_preemption_disabled+0x48/0x280
[  459.758794]  ? __lock_is_held+0xb5/0x140
[  459.762849]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.768385]  ? check_preemption_disabled+0x48/0x280
[  459.773398]  run_timer_softirq+0x52/0xb0
[  459.777450]  ? rcu_read_lock_sched_held+0x14f/0x180
[  459.782481]  __do_softirq+0x308/0xb7e
[  459.786275]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  459.790762]  ? lock_downgrade+0x900/0x900
[  459.794905]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  459.800016]  ? pvclock_read_flags+0x160/0x160
[  459.804506]  ? lapic_next_event+0x5a/0x90
[  459.808645]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.814176]  ? kvm_clock_read+0x18/0x30
[  459.818139]  ? kvm_sched_clock_read+0x9/0x20
[  459.822545]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  459.828076]  ? check_preemption_disabled+0x48/0x280
[  459.833092]  irq_exit+0x17f/0x1c0
[  459.836543]  smp_apic_timer_interrupt+0x1cb/0x760
[  459.841376]  ? smp_reschedule_interrupt+0x109/0x650
[  459.846387]  ? smp_call_function_single_interrupt+0x650/0x650
[  459.852260]  ? interrupt_entry+0xb5/0xc0
[  459.857267]  ? trace_hardirqs_off_caller+0xbb/0x310
[  459.862277]  ? trace_hardirqs_off_caller+0xbb/0x310
[  459.867289]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  459.872145]  ? trace_hardirqs_on_caller+0x310/0x310
[  459.877152]  ? trace_hardirqs_on_caller+0x310/0x310
[  459.882163]  ? task_prio+0x50/0x50
[  459.885699]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.891231]  ? check_preemption_disabled+0x48/0x280
[  459.896247]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  459.901094]  apic_timer_interrupt+0xf/0x20
[  459.905316]  </IRQ>
[  459.907555] RIP: 0010:dump_stack+0x358/0x39d
[  459.911959] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  459.931342] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  459.939045] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  459.946302] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  459.953588] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  459.961361] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  459.968619] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  459.975899]  ? dump_stack+0x34f/0x39d
[  459.979709]  ? dump_stack_print_info.cold.1+0x20/0x20
[  459.984895]  ? mark_held_locks+0x130/0x130
[  459.989117]  ? mark_held_locks+0x130/0x130
[  459.993348]  dump_header+0x27b/0xf72
[  459.997064]  ? pagefault_out_of_memory+0x197/0x197
[  460.001994]  ? __lock_acquire+0x62f/0x4c20
[  460.006222]  ? percpu_ref_get_many+0x240/0x240
[  460.010792]  ? print_usage_bug+0xc0/0xc0
[  460.014859]  ? zap_class+0x640/0x640
[  460.018560]  ? print_usage_bug+0xc0/0xc0
[  460.022607]  ? print_usage_bug+0xc0/0xc0
[  460.026657]  ? zap_class+0x640/0x640
[  460.030366]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.035899]  ? find_held_lock+0x36/0x1c0
[  460.039963]  ? mark_held_locks+0xc7/0x130
[  460.044103]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  460.049199]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  460.054295]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  460.059191]  ? trace_hardirqs_on+0xbd/0x310
[  460.063502]  ? kasan_check_read+0x11/0x20
[  460.067641]  ? ___ratelimit+0x3b4/0x672
[  460.071612]  ? trace_hardirqs_off_caller+0x310/0x310
[  460.076711]  ? trace_hardirqs_on+0x310/0x310
[  460.081112]  ? lock_downgrade+0x900/0x900
[  460.085261]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  460.090456]  ? ___ratelimit+0x3b9/0x672
[  460.094424]  ? idr_get_free+0xf70/0xf70
[  460.098392]  ? find_held_lock+0x36/0x1c0
[  460.102456]  oom_kill_process.cold.27+0x10/0x903
[  460.107208]  ? zap_class+0x640/0x640
[  460.110915]  ? check_preemption_disabled+0x48/0x280
[  460.115924]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  460.120845]  ? kasan_check_read+0x11/0x20
[  460.124980]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  460.130340]  ? oom_evaluate_task+0x540/0x540
[  460.134746]  ? find_held_lock+0x36/0x1c0
[  460.138807]  ? out_of_memory+0x974/0x1430
[  460.142957]  ? lock_downgrade+0x900/0x900
[  460.147096]  ? check_preemption_disabled+0x48/0x280
[  460.152107]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  460.158029]  ? kasan_check_read+0x11/0x20
[  460.162168]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  460.167438]  ? rcu_softirq_qs+0x20/0x20
[  460.171410]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  460.176937]  ? oom_evaluate_task+0x302/0x540
[  460.181342]  out_of_memory+0xa84/0x1430
[  460.185322]  ? oom_killer_disable+0x3a0/0x3a0
[  460.189811]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  460.194739]  ? __ww_mutex_check_waiters+0x160/0x160
[  460.199764]  __alloc_pages_slowpath+0x2354/0x2e10
[  460.204626]  ? warn_alloc+0x120/0x120
[  460.208419]  ? mark_held_locks+0x130/0x130
[  460.212740]  ? find_get_entry+0xaae/0x1120
[  460.216974]  ? filemap_map_pages+0x1a20/0x1a20
[  460.221563]  ? zap_class+0x640/0x640
[  460.225272]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.230805]  ? check_preemption_disabled+0x48/0x280
[  460.235833]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  460.241383]  ? should_fail+0x22d/0xd01
[  460.245279]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  460.250376]  ? zap_class+0x640/0x640
[  460.254104]  ? __lock_is_held+0xb5/0x140
[  460.259142]  ? mark_held_locks+0x130/0x130
[  460.263395]  ? lock_release+0xa00/0xa00
[  460.267361]  ? perf_trace_sched_process_exec+0x860/0x860
[  460.272805]  ? xa_load+0x2ba/0x460
[  460.276346]  ? lock_downgrade+0x900/0x900
[  460.280496]  ? __might_sleep+0x95/0x190
[  460.284469]  __alloc_pages_nodemask+0xa80/0xde0
[  460.289142]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  460.294154]  ? __page_cache_alloc+0x191/0x5c0
[  460.298642]  ? xa_load+0x2e1/0x460
[  460.302178]  ? xa_clear_mark+0x40/0x40
[  460.306068]  ? zap_class+0x640/0x640
[  460.309779]  ? zap_class+0x640/0x640
[  460.313486]  ? zap_class+0x640/0x640
[  460.317190]  ? __do_page_cache_readahead+0x663/0x810
[  460.322291]  ? find_held_lock+0x36/0x1c0
[  460.326358]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  460.331902]  alloc_pages_current+0x173/0x350
[  460.336303]  __page_cache_alloc+0x38c/0x5c0
[  460.340624]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  460.345558]  ? kasan_check_read+0x11/0x20
[  460.349774]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  460.355045]  ? generic_perform_write+0x6a0/0x6a0
[  460.360730]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  460.366265]  ? check_preemption_disabled+0x48/0x280
[  460.371282]  filemap_fault+0x1595/0x25f0
[  460.375362]  ? __lock_page_or_retry+0xa00/0xa00
[  460.380034]  ? mark_held_locks+0x130/0x130
[  460.384265]  ? filemap_map_pages+0xd6b/0x1a20
[  460.388749]  ? lock_downgrade+0x900/0x900
[  460.392920]  ? check_preemption_disabled+0x48/0x280
[  460.397931]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  460.402847]  ? kasan_check_read+0x11/0x20
[  460.406985]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  460.412255]  ? rcu_softirq_qs+0x20/0x20
[  460.416230]  ? filemap_map_pages+0xd92/0x1a20
[  460.420728]  ? find_get_entries_tag+0x1400/0x1400
[  460.425563]  ? debug_object_destroy+0x2b0/0x2b0
[  460.430259]  ? lock_pi_update_atomic+0x150/0x150
[  460.435010]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  460.440554]  ? lock_acquire+0x1ed/0x520
[  460.444518]  ? ext4_filemap_fault+0x7a/0xad
[  460.448842]  ? lock_release+0xa00/0xa00
[  460.452811]  ? perf_trace_sched_process_exec+0x860/0x860
[  460.459212]  ? print_usage_bug+0xc0/0xc0
[  460.463270]  ? print_usage_bug+0xc0/0xc0
[  460.467341]  ? down_read+0x8d/0x120
[  460.470958]  ? ext4_filemap_fault+0x7a/0xad
[  460.475273]  ? __down_interruptible+0x700/0x700
[  460.479951]  ext4_filemap_fault+0x82/0xad
[  460.484097]  __do_fault+0x100/0x6b0
[  460.487720]  ? pmd_devmap_trans_unstable+0x220/0x220
[  460.492833]  ? mark_held_locks+0x130/0x130
[  460.497062]  ? mark_held_locks+0x130/0x130
[  460.501287]  ? do_raw_spin_trylock+0x270/0x270
[  460.505875]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  460.511408]  __handle_mm_fault+0x3ea0/0x5be0
[  460.515808]  ? perf_trace_lock+0x7a0/0x7a0
[  460.520082]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  460.524920]  ? __switch_to_asm+0x34/0x70
[  460.528974]  ? __switch_to_asm+0x34/0x70
[  460.533038]  ? zap_class+0x640/0x640
[  460.536742]  ? zap_class+0x640/0x640
[  460.540448]  ? __x64_sys_futex+0x53e/0x6a0
[  460.544675]  ? find_held_lock+0x36/0x1c0
[  460.548826]  ? handle_mm_fault+0x42a/0xc70
[  460.553063]  ? lock_downgrade+0x900/0x900
[  460.558175]  ? check_preemption_disabled+0x48/0x280
[  460.563186]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  460.568107]  ? kasan_check_read+0x11/0x20
[  460.572248]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  460.577515]  ? rcu_softirq_qs+0x20/0x20
[  460.581483]  ? trace_hardirqs_off_caller+0x310/0x310
[  460.586580]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  460.592113]  ? check_preemption_disabled+0x48/0x280
[  460.597138]  handle_mm_fault+0x54f/0xc70
[  460.601197]  ? __handle_mm_fault+0x5be0/0x5be0
[  460.605792]  ? find_vma+0x34/0x190
[  460.609337]  __do_page_fault+0x5e8/0xe60
[  460.613392]  ? trace_hardirqs_off+0xb8/0x310
[  460.617803]  do_page_fault+0xf2/0x7e0
[  460.621606]  ? vmalloc_sync_all+0x30/0x30
[  460.625746]  ? error_entry+0x70/0xd0
[  460.629455]  ? trace_hardirqs_off_caller+0xbb/0x310
[  460.634467]  ? trace_hardirqs_on_caller+0xc0/0x310
[  460.639390]  ? syscall_return_slowpath+0x5e0/0x5e0
[  460.644320]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  460.649159]  ? trace_hardirqs_on_caller+0x310/0x310
[  460.654188]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  460.660455]  ? prepare_exit_to_usermode+0x291/0x3b0
[  460.665467]  ? page_fault+0x8/0x30
[  460.669005]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  460.673847]  ? page_fault+0x8/0x30
[  460.677381]  page_fault+0x1e/0x30
[  460.680823] RIP: 0033:0x45ddf3
[  460.684023] Code: Bad RIP value.
[  460.687380] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  460.692731] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  460.699993] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  460.707254] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  460.714520] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  460.721782] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  460.729070] warn_alloc_show_mem: 1 callbacks suppressed
[  460.729080] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  460.729081] Mem-Info:
[  460.729110] active_anon:54141 inactive_anon:292 isolated_anon:0
[  460.729110]  active_file:12 inactive_file:13 isolated_file:0
[  460.729110]  unevictable:0 dirty:0 writeback:0 unstable:0
[  460.729110]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  460.729110]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  460.729110]  free:13705 free_pcp:178 free_cma:0
[  460.734440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  460.741359] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  460.743743] Call Trace:
[  460.777407] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  460.786754]  dump_stack+0x244/0x39d
[  460.814387] lowmem_reserve[]: 0 2818 6321 6321
[  460.816960]  ? dump_stack_print_info.cold.1+0x20/0x20
[  460.843036] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  460.846660]  warn_alloc.cold.116+0xb7/0x1bd
[  460.851203] lowmem_reserve[]: 0 0 3503 3503
[  460.856705]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  460.884171] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  460.888481]  ? lock_downgrade+0x900/0x900
[  460.892770] lowmem_reserve[]: 0 0 0 0
[  460.897691]  ? trace_hardirqs_off+0xb8/0x310
[  460.926634] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  460.930776]  ? trace_hardirqs_off+0xb8/0x310
[  460.934552] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  460.938955]  __alloc_pages_slowpath+0x26e8/0x2e10
[  460.952442] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  460.957179]  ? warn_alloc+0x120/0x120
[  460.972393] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  460.977215]  ? warn_alloc+0x120/0x120
[  460.991403] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  460.995213]  ? warn_alloc+0x120/0x120
[  461.004014] 366 total pagecache pages
[  461.007788]  ? trace_hardirqs_off+0xb8/0x310
[  461.007803]  ? print_usage_bug+0xc0/0xc0
[  461.016349] 0 pages in swap cache
[  461.020127]  ? print_usage_bug+0xc0/0xc0
[  461.023903] Swap cache stats: add 0, delete 0, find 0/0
[  461.028302]  ? __lock_acquire+0x62f/0x4c20
[  461.032336] Free swap  = 0kB
[  461.035776]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  461.039812] Total swap = 0kB
[  461.045159]  ? should_fail+0x22d/0xd01
[  461.049359] 1965979 pages RAM
[  461.052362]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  461.058644] 0 pages HighMem/MovableOnly
[  461.058652] 342854 pages reserved
[  461.061657]  ? __lock_acquire+0x62f/0x4c20
[  461.065525] 0 pages cma reserved
[  461.068702]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  461.073830] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  461.077724]  ? __lock_acquire+0x62f/0x4c20
[  461.077738]  ? should_fail+0x22d/0xd01
[  461.081213] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  461.085385]  ? mark_held_locks+0x130/0x130
[  461.088716] syz-fuzzer cpuset=/ mems_allowed=0
[  461.093804]  ? mark_held_locks+0x130/0x130
[  461.131574]  ? zap_class+0x640/0x640
[  461.135288]  ? ret_from_fork+0x3a/0x50
[  461.139185]  ? __lock_acquire+0x62f/0x4c20
[  461.143444]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.148978]  ? check_preemption_disabled+0x48/0x280
[  461.153995]  ? __lock_is_held+0xb5/0x140
[  461.158350]  __alloc_pages_nodemask+0xa80/0xde0
[  461.163012]  ? zap_class+0x640/0x640
[  461.166723]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  461.171743]  ? find_held_lock+0x36/0x1c0
[  461.175806]  ? ____cache_alloc_node+0x1c7/0x1e0
[  461.180470]  ? lock_downgrade+0x900/0x900
[  461.184618]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.190165]  cache_grow_begin+0xa5/0x8c0
[  461.194218]  ? do_raw_spin_unlock+0xa7/0x330
[  461.198632]  fallback_alloc+0x204/0x2e0
[  461.202606]  ____cache_alloc_node+0x1c7/0x1e0
[  461.207098]  kmem_cache_alloc_node+0xe3/0x730
[  461.211586]  ? mark_held_locks+0xc7/0x130
[  461.215736]  __alloc_skb+0x119/0x770
[  461.219449]  ? netdev_alloc_frag+0x1f0/0x1f0
[  461.223853]  ? do_raw_spin_trylock+0x270/0x270
[  461.228426]  ? kmem_cache_alloc_trace+0x353/0x750
[  461.233274]  ? queue_work_on+0x12c/0x1e0
[  461.237339]  ? switchdev_port_obj_del+0xdc/0x440
[  461.242088]  ? switchdev_trans_item_enqueue+0x260/0x260
[  461.247447]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  461.252464]  __br_mdb_notify+0x4ff/0x15d0
[  461.256974]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  461.262080]  ? __br_mdb_add+0x7f0/0x7f0
[  461.266047]  ? mark_held_locks+0x130/0x130
[  461.270302]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  461.275406]  ? debug_object_assert_init+0x368/0x4b0
[  461.280418]  ? debug_object_init_on_stack+0x20/0x20
[  461.285434]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.290974]  br_mdb_notify+0x310/0x410
[  461.294858]  ? br_mdb_dump+0x27b0/0x27b0
[  461.298928]  br_multicast_del_pg+0x3df/0x790
[  461.303334]  ? br_mdb_ip_get+0x940/0x940
[  461.307392]  ? rwlock_bug.part.2+0x90/0x90
[  461.311622]  ? __lock_is_held+0xb5/0x140
[  461.315690]  br_multicast_port_group_expired+0x189/0x1e0
[  461.321138]  call_timer_fn+0x272/0x920
[  461.325110]  ? br_multicast_del_pg+0x790/0x790
[  461.329683]  ? process_timeout+0x40/0x40
[  461.333746]  ? __run_timers+0x7da/0xc70
[  461.337713]  ? _raw_spin_unlock_irq+0x27/0x80
[  461.342198]  ? _raw_spin_unlock_irq+0x27/0x80
[  461.346685]  ? br_multicast_del_pg+0x790/0x790
[  461.351275]  ? lockdep_hardirqs_on+0x296/0x5b0
[  461.356166]  ? trace_hardirqs_on+0xbd/0x310
[  461.360476]  ? kasan_check_read+0x11/0x20
[  461.364615]  ? __run_timers+0x7da/0xc70
[  461.368586]  ? trace_hardirqs_off_caller+0x310/0x310
[  461.373690]  ? br_multicast_del_pg+0x790/0x790
[  461.378281]  ? br_multicast_del_pg+0x790/0x790
[  461.382873]  __run_timers+0x7e5/0xc70
[  461.386676]  ? timer_fixup_init+0x70/0x70
[  461.390817]  ? _raw_spin_unlock_irq+0x27/0x80
[  461.395303]  ? _raw_spin_unlock_irq+0x27/0x80
[  461.399797]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  461.404371]  ? trace_hardirqs_on+0xbd/0x310
[  461.408695]  ? kasan_check_read+0x11/0x20
[  461.412851]  ? finish_task_switch+0x1f4/0x910
[  461.417358]  ? trace_hardirqs_off_caller+0x310/0x310
[  461.422475]  ? compat_start_thread+0x80/0x80
[  461.426903]  ? pvclock_read_flags+0x160/0x160
[  461.431389]  ? __switch_to_asm+0x34/0x70
[  461.435447]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.440977]  ? check_preemption_disabled+0x48/0x280
[  461.445995]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  461.451528]  ? rcu_pm_notify+0xc0/0xc0
[  461.455423]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.461278]  ? check_preemption_disabled+0x48/0x280
[  461.466289]  run_timer_softirq+0x52/0xb0
[  461.470343]  ? rcu_read_lock_sched_held+0x14f/0x180
[  461.475349]  __do_softirq+0x308/0xb7e
[  461.479150]  ? trace_hardirqs_on_caller+0xc0/0x310
[  461.484073]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  461.489172]  ? trace_hardirqs_on+0x310/0x310
[  461.493582]  ? schedule+0x108/0x460
[  461.497212]  ? trace_hardirqs_off+0xb8/0x310
[  461.501621]  ? smpboot_thread_fn+0x68b/0xa00
[  461.506021]  ? trace_hardirqs_on+0x310/0x310
[  461.510425]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  461.515955]  ? check_preemption_disabled+0x48/0x280
[  461.520965]  ? takeover_tasklets+0xa90/0xa90
[  461.525372]  run_ksoftirqd+0x5e/0x100
[  461.529164]  smpboot_thread_fn+0x68b/0xa00
[  461.533399]  ? sort_range+0x30/0x30
[  461.537019]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  461.542117]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  461.547643]  ? __kthread_parkme+0xfb/0x1a0
[  461.551872]  ? sort_range+0x30/0x30
[  461.555781]  kthread+0x35a/0x440
[  461.559142]  ? kthread_stop+0x900/0x900
[  461.563110]  ret_from_fork+0x3a/0x50
[  461.566832] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  461.566865] rcu: INFO: rcu_preempt self-detected stall on CPU
[  461.573754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  461.573761] Call Trace:
[  461.579860] rcu: 	0-...!: (127 ticks this GP) idle=03a/1/0x4000000000000002 softirq=259074/259078 fqs=3 
[  461.588964]  <IRQ>
[  461.588980]  dump_stack+0x244/0x39d
[  461.588997]  ? dump_stack_print_info.cold.1+0x20/0x20
[  461.589020]  warn_alloc.cold.116+0xb7/0x1bd
[  461.589036]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  461.589053]  ? lock_downgrade+0x900/0x900
[  461.589073]  ? trace_hardirqs_off+0xb8/0x310
[  461.589092]  ? trace_hardirqs_off+0xb8/0x310
[  461.591771] rcu: 	 (t=10710 jiffies g=50525 q=49)
[  461.601378]  __alloc_pages_slowpath+0x26e8/0x2e10
[  461.603503] rcu: rcu_preempt kthread starved for 10382 jiffies! g50525 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
[  461.607127]  ? warn_alloc+0x120/0x120
[  461.612264] rcu: RCU grace-period kthread stack dump:
[  461.616568]  ? print_usage_bug+0xc0/0xc0
[  461.621383] rcu_preempt     R  running task    22568    10      2 0x80000000
[  461.625517]  ? warn_alloc+0x120/0x120
[  461.629897] Call Trace:
[  461.634293]  ? warn_alloc+0x120/0x120
[  461.639112]  __schedule+0x8cf/0x21d0
[  461.643941]  ? print_usage_bug+0xc0/0xc0
[  461.654409]  ? __sched_text_start+0x8/0x8
[  461.659144]  ? print_usage_bug+0xc0/0xc0
[  461.664313]  ? add_timer_on+0xa20/0xa20
[  461.668348]  ? __lock_acquire+0x62f/0x4c20
[  461.675511]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  461.679292]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  461.681873]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  461.685664]  ? should_fail+0x22d/0xd01
[  461.689354]  ? trace_hardirqs_on+0xbd/0x310
[  461.693394]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  461.697518]  ? kasan_check_read+0x11/0x20
[  461.701554]  ? __lock_acquire+0x62f/0x4c20
[  461.705505]  ? prepare_to_swait_event+0x25a/0x800
[  461.709715]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  461.714798]  ? trace_hardirqs_off_caller+0x310/0x310
[  461.720313]  ? __lock_acquire+0x62f/0x4c20
[  461.725390]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  461.729256]  ? should_fail+0x22d/0xd01
[  461.733557]  schedule+0xfe/0x460
[  461.738633]  ? find_held_lock+0x36/0x1c0
[  461.742759]  ? __schedule+0x21d0/0x21d0
[  461.746978]  ? mark_held_locks+0x130/0x130
[  461.751802]  ? prepare_to_swait_event+0x25a/0x800
[  461.757836]  ? mark_held_locks+0x130/0x130
[  461.762922]  ? __init_swait_queue_head+0x150/0x150
[  461.767128]  ? zap_class+0x640/0x640
[  461.767143]  ? zap_class+0x640/0x640
[  461.772233]  ? __lockdep_init_map+0x105/0x590
[  461.776094]  ? print_usage_bug+0xc0/0xc0
[  461.779437]  ? lockdep_init_map+0x9/0x10
[  461.783472]  ? do_raw_spin_unlock+0xa7/0x330
[  461.787435]  schedule_timeout+0x140/0x260
[  461.791640]  ? zap_class+0x640/0x640
[  461.796460]  ? usleep_range+0x1a0/0x1a0
[  461.800668]  ? print_usage_bug+0xc0/0xc0
[  461.805572]  ? __next_timer_interrupt+0x1a0/0x1a0
[  461.809267]  ? wq_watchdog_touch+0x9c/0xfe
[  461.812966]  rcu_gp_fqs_loop+0x762/0xa80
[  461.817433]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.821476]  ? rcu_gp_fqs_check_wake+0x170/0x170
[  461.825515]  ? check_preemption_disabled+0x48/0x280
[  461.829902]  ? trace_hardirqs_off_caller+0x310/0x310
[  461.834048]  ? __lock_is_held+0xb5/0x140
[  461.837743]  ? perf_trace_sched_process_exec+0x860/0x860
[  461.841696]  __alloc_pages_nodemask+0xa80/0xde0
[  461.845730]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.850551]  ? zap_class+0x640/0x640
[  461.854773]  ? rcu_gp_init+0x90b/0x1260
[  461.859555]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  461.865068]  ? __switch_to_asm+0x40/0x70
[  461.869807]  ? find_held_lock+0x36/0x1c0
[  461.875305]  ? dump_blkd_tasks.isra.48+0xe0/0xe0
[  461.880388]  ? ____cache_alloc_node+0x1c7/0x1e0
[  461.884418]  ? __switch_to_asm+0x40/0x70
[  461.889849]  ? lock_downgrade+0x900/0x900
[  461.894495]  ? find_held_lock+0x36/0x1c0
[  461.900011]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  461.903702]  ? zap_class+0x640/0x640
[  461.907656]  cache_grow_begin+0xa5/0x8c0
[  461.912654]  ? prepare_to_swait_event+0x25a/0x800
[  461.916685]  ? do_raw_spin_unlock+0xa7/0x330
[  461.920723]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  461.925926]  fallback_alloc+0x204/0x2e0
[  461.930575]  ? find_held_lock+0x36/0x1c0
[  461.934617]  ____cache_alloc_node+0x1c7/0x1e0
[  461.938835]  ? finish_swait+0x25d/0x430
[  461.942872]  kmem_cache_alloc_node+0xe3/0x730
[  461.948384]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  461.952075]  ? ipv6_get_ifaddr+0x42e/0x620
[  461.956404]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  461.961250]  __alloc_skb+0x119/0x770
[  461.965652]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  461.970736]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  461.974687]  ? trace_hardirqs_on+0xbd/0x310
[  461.978726]  ? netdev_alloc_frag+0x1f0/0x1f0
[  461.983194]  ? kasan_check_read+0x11/0x20
[  461.987170]  ? lock_downgrade+0x900/0x900
[  461.991643]  ? trace_hardirqs_off_caller+0x310/0x310
[  461.996729]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.000938]  ? __init_swait_queue_head+0x150/0x150
[  462.006017]  ? refcount_sub_and_test_checked+0x203/0x310
[  462.009716]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  462.014278]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  462.019564]  ? finish_swait+0x25d/0x430
[  462.023863]  ? addrconf_rs_timer+0x690/0x690
[  462.028247]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  462.032381]  ndisc_alloc_skb+0x144/0x340
[  462.036498]  ? swake_up_locked+0x360/0x360
[  462.041585]  ndisc_send_rs+0x331/0x6e0
[  462.047102]  ? trace_hardirqs_off_caller+0x310/0x310
[  462.052013]  addrconf_rs_timer+0x314/0x690
[  462.057780]  ? perf_trace_sched_process_exec+0x860/0x860
[  462.062865]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  462.068290]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.072249]  call_timer_fn+0x272/0x920
[  462.076637]  rcu_gp_kthread+0x341/0xc70
[  462.081199]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  462.085243]  ? rcu_gp_init+0x1260/0x1260
[  462.089451]  ? process_timeout+0x40/0x40
[  462.093314]  ? mark_held_locks+0x130/0x130
[  462.098408]  ? mark_held_locks+0xc7/0x130
[  462.102617]  ? __schedule+0x168a/0x21d0
[  462.108045]  ? _raw_spin_unlock_irq+0x27/0x80
[  462.112260]  ? _raw_spin_unlock_irq+0x27/0x80
[  462.117773]  ? _raw_spin_unlock_irq+0x27/0x80
[  462.121641]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  462.125589]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  462.129798]  ? trace_hardirqs_on+0xbd/0x310
[  462.133837]  ? lockdep_hardirqs_on+0x296/0x5b0
[  462.137875]  ? kasan_check_read+0x11/0x20
[  462.142087]  ? trace_hardirqs_on+0xbd/0x310
[  462.146218]  ? __schedule+0x168a/0x21d0
[  462.150167]  ? kasan_check_read+0x11/0x20
[  462.154641]  ? trace_hardirqs_off_caller+0x310/0x310
[  462.160052]  ? __run_timers+0x7da/0xc70
[  462.164531]  ? lock_pin_lock+0x350/0x350
[  462.169090]  ? trace_hardirqs_off_caller+0x310/0x310
[  462.173305]  ? _raw_spin_unlock_irq+0x60/0x80
[  462.177612]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  462.182161]  ? __schedule+0x168a/0x21d0
[  462.186287]  __run_timers+0x7e5/0xc70
[  462.190587]  ? __switch_to_asm+0x40/0x70
[  462.194544]  ? timer_fixup_init+0x70/0x70
[  462.198661]  ? __switch_to_asm+0x40/0x70
[  462.203741]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  462.207693]  ? show_schedstat+0x721/0xf30
[  462.211732]  ? zap_class+0x640/0x640
[  462.216819]  ? __sched_text_start+0x8/0x8
[  462.221293]  ? print_usage_bug+0xc0/0xc0
[  462.225509]  ? find_held_lock+0x36/0x1c0
[  462.229458]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  462.233244]  ? __kthread_parkme+0xce/0x1a0
[  462.237279]  ? find_held_lock+0x36/0x1c0
[  462.241399]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  462.245438]  ? zap_class+0x640/0x640
[  462.250427]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  462.254553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.258544]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  462.262670]  ? check_preemption_disabled+0x48/0x280
[  462.266710]  ? trace_hardirqs_on+0xbd/0x310
[  462.270752]  ? __lock_is_held+0xb5/0x140
[  462.275914]  ? kasan_check_read+0x11/0x20
[  462.280126]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.284163]  ? __kthread_parkme+0xce/0x1a0
[  462.289243]  ? check_preemption_disabled+0x48/0x280
[  462.292931]  ? trace_hardirqs_off_caller+0x310/0x310
[  462.298018]  run_timer_softirq+0x52/0xb0
[  462.303537]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  462.308093]  ? rcu_read_lock_sched_held+0x14f/0x180
[  462.313079]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  462.317375]  __do_softirq+0x308/0xb7e
[  462.321413]  ? __kthread_parkme+0xfb/0x1a0
[  462.325538]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  462.331055]  ? rcu_gp_init+0x1260/0x1260
[  462.335260]  ? lock_downgrade+0x900/0x900
[  462.340252]  kthread+0x35a/0x440
[  462.345331]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  462.349369]  ? kthread_stop+0x900/0x900
[  462.354453]  ? pvclock_read_flags+0x160/0x160
[  462.359772]  ret_from_fork+0x3a/0x50
[  462.365304]  ? lapic_next_event+0x5a/0x90
[  462.369091] NMI backtrace for cpu 0
[  462.373295]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.419735]  ? kvm_clock_read+0x18/0x30
[  462.423706]  ? kvm_sched_clock_read+0x9/0x20
[  462.428111]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  462.433645]  ? check_preemption_disabled+0x48/0x280
[  462.438667]  irq_exit+0x17f/0x1c0
[  462.442117]  smp_apic_timer_interrupt+0x1cb/0x760
[  462.446949]  ? smp_reschedule_interrupt+0x109/0x650
[  462.451958]  ? smp_call_function_single_interrupt+0x650/0x650
[  462.458640]  ? interrupt_entry+0xb5/0xc0
[  462.462701]  ? trace_hardirqs_off_caller+0xbb/0x310
[  462.467724]  ? trace_hardirqs_off_caller+0xbb/0x310
[  462.472732]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  462.477566]  ? trace_hardirqs_on_caller+0x310/0x310
[  462.482574]  ? trace_hardirqs_on_caller+0x310/0x310
[  462.487578]  ? task_prio+0x50/0x50
[  462.491113]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.496639]  ? check_preemption_disabled+0x48/0x280
[  462.501645]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  462.506486]  apic_timer_interrupt+0xf/0x20
[  462.510705]  </IRQ>
[  462.512939] RIP: 0010:dump_stack+0x358/0x39d
[  462.517342] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  462.536232] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  462.543928] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  462.551184] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  462.559237] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  462.566496] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  462.573755] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  462.581033]  ? dump_stack+0x34f/0x39d
[  462.584839]  ? dump_stack_print_info.cold.1+0x20/0x20
[  462.590028]  ? mark_held_locks+0x130/0x130
[  462.594257]  ? mark_held_locks+0x130/0x130
[  462.598489]  dump_header+0x27b/0xf72
[  462.602207]  ? pagefault_out_of_memory+0x197/0x197
[  462.607132]  ? __lock_acquire+0x62f/0x4c20
[  462.611366]  ? percpu_ref_get_many+0x240/0x240
[  462.615951]  ? print_usage_bug+0xc0/0xc0
[  462.620007]  ? zap_class+0x640/0x640
[  462.623718]  ? print_usage_bug+0xc0/0xc0
[  462.627769]  ? print_usage_bug+0xc0/0xc0
[  462.631826]  ? zap_class+0x640/0x640
[  462.635536]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.641070]  ? find_held_lock+0x36/0x1c0
[  462.645132]  ? mark_held_locks+0xc7/0x130
[  462.649281]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  462.654373]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  462.660283]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  462.664950]  ? trace_hardirqs_on+0xbd/0x310
[  462.669264]  ? kasan_check_read+0x11/0x20
[  462.673409]  ? ___ratelimit+0x3b4/0x672
[  462.677378]  ? trace_hardirqs_off_caller+0x310/0x310
[  462.682473]  ? trace_hardirqs_on+0x310/0x310
[  462.686877]  ? lock_downgrade+0x900/0x900
[  462.691025]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  462.696227]  ? ___ratelimit+0x3b9/0x672
[  462.700196]  ? idr_get_free+0xf70/0xf70
[  462.704165]  ? find_held_lock+0x36/0x1c0
[  462.708329]  oom_kill_process.cold.27+0x10/0x903
[  462.713079]  ? zap_class+0x640/0x640
[  462.716788]  ? check_preemption_disabled+0x48/0x280
[  462.721885]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  462.726801]  ? kasan_check_read+0x11/0x20
[  462.730940]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  462.736210]  ? oom_evaluate_task+0x540/0x540
[  462.740613]  ? find_held_lock+0x36/0x1c0
[  462.744676]  ? out_of_memory+0x974/0x1430
[  462.748814]  ? lock_downgrade+0x900/0x900
[  462.752951]  ? check_preemption_disabled+0x48/0x280
[  462.758406]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  462.763324]  ? kasan_check_read+0x11/0x20
[  462.767459]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  462.772727]  ? rcu_softirq_qs+0x20/0x20
[  462.776705]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  462.782231]  ? oom_evaluate_task+0x302/0x540
[  462.786634]  out_of_memory+0xa84/0x1430
[  462.790608]  ? oom_killer_disable+0x3a0/0x3a0
[  462.795094]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  462.800015]  ? __ww_mutex_check_waiters+0x160/0x160
[  462.805047]  __alloc_pages_slowpath+0x2354/0x2e10
[  462.809906]  ? warn_alloc+0x120/0x120
[  462.813699]  ? mark_held_locks+0x130/0x130
[  462.817929]  ? find_get_entry+0xaae/0x1120
[  462.822171]  ? filemap_map_pages+0x1a20/0x1a20
[  462.826749]  ? zap_class+0x640/0x640
[  462.830458]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  462.835987]  ? check_preemption_disabled+0x48/0x280
[  462.840992]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  462.846522]  ? should_fail+0x22d/0xd01
[  462.850408]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  462.855976]  ? zap_class+0x640/0x640
[  462.859708]  ? __lock_is_held+0xb5/0x140
[  462.863772]  ? mark_held_locks+0x130/0x130
[  462.868000]  ? lock_release+0xa00/0xa00
[  462.871963]  ? perf_trace_sched_process_exec+0x860/0x860
[  462.877407]  ? xa_load+0x2ba/0x460
[  462.880966]  ? lock_downgrade+0x900/0x900
[  462.885112]  ? __might_sleep+0x95/0x190
[  462.889090]  __alloc_pages_nodemask+0xa80/0xde0
[  462.893756]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  462.898767]  ? __page_cache_alloc+0x191/0x5c0
[  462.903257]  ? xa_load+0x2e1/0x460
[  462.906791]  ? xa_clear_mark+0x40/0x40
[  462.910681]  ? zap_class+0x640/0x640
[  462.914399]  ? zap_class+0x640/0x640
[  462.918103]  ? zap_class+0x640/0x640
[  462.921825]  ? __do_page_cache_readahead+0x663/0x810
[  462.926928]  ? find_held_lock+0x36/0x1c0
[  462.930991]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  462.936527]  alloc_pages_current+0x173/0x350
[  462.940933]  __page_cache_alloc+0x38c/0x5c0
[  462.945244]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  462.950166]  ? kasan_check_read+0x11/0x20
[  462.954308]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  462.960354]  ? generic_perform_write+0x6a0/0x6a0
[  462.965103]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  462.970642]  ? check_preemption_disabled+0x48/0x280
[  462.975676]  filemap_fault+0x1595/0x25f0
[  462.979739]  ? __lock_page_or_retry+0xa00/0xa00
[  462.984405]  ? mark_held_locks+0x130/0x130
[  462.988641]  ? filemap_map_pages+0xd6b/0x1a20
[  462.993142]  ? lock_downgrade+0x900/0x900
[  462.997281]  ? check_preemption_disabled+0x48/0x280
[  463.002291]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  463.007215]  ? kasan_check_read+0x11/0x20
[  463.011357]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  463.016630]  ? rcu_softirq_qs+0x20/0x20
[  463.020613]  ? filemap_map_pages+0xd92/0x1a20
[  463.025111]  ? find_get_entries_tag+0x1400/0x1400
[  463.030062]  ? debug_object_destroy+0x2b0/0x2b0
[  463.034727]  ? lock_pi_update_atomic+0x150/0x150
[  463.039475]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.045015]  ? lock_acquire+0x1ed/0x520
[  463.048982]  ? ext4_filemap_fault+0x7a/0xad
[  463.053303]  ? lock_release+0xa00/0xa00
[  463.058225]  ? perf_trace_sched_process_exec+0x860/0x860
[  463.063672]  ? print_usage_bug+0xc0/0xc0
[  463.067726]  ? print_usage_bug+0xc0/0xc0
[  463.071795]  ? down_read+0x8d/0x120
[  463.075416]  ? ext4_filemap_fault+0x7a/0xad
[  463.079735]  ? __down_interruptible+0x700/0x700
[  463.084405]  ext4_filemap_fault+0x82/0xad
[  463.088553]  __do_fault+0x100/0x6b0
[  463.092179]  ? pmd_devmap_trans_unstable+0x220/0x220
[  463.097282]  ? mark_held_locks+0x130/0x130
[  463.101514]  ? mark_held_locks+0x130/0x130
[  463.105740]  ? do_raw_spin_trylock+0x270/0x270
[  463.110321]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  463.115858]  __handle_mm_fault+0x3ea0/0x5be0
[  463.120261]  ? perf_trace_lock+0x7a0/0x7a0
[  463.124498]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  463.129337]  ? __switch_to_asm+0x34/0x70
[  463.133403]  ? __switch_to_asm+0x34/0x70
[  463.137470]  ? zap_class+0x640/0x640
[  463.141174]  ? zap_class+0x640/0x640
[  463.144876]  ? __x64_sys_futex+0x53e/0x6a0
[  463.149106]  ? find_held_lock+0x36/0x1c0
[  463.153171]  ? handle_mm_fault+0x42a/0xc70
[  463.158211]  ? lock_downgrade+0x900/0x900
[  463.162354]  ? check_preemption_disabled+0x48/0x280
[  463.167364]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  463.172286]  ? kasan_check_read+0x11/0x20
[  463.176429]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  463.181696]  ? rcu_softirq_qs+0x20/0x20
[  463.185670]  ? trace_hardirqs_off_caller+0x310/0x310
[  463.190768]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  463.196297]  ? check_preemption_disabled+0x48/0x280
[  463.201332]  handle_mm_fault+0x54f/0xc70
[  463.205388]  ? __handle_mm_fault+0x5be0/0x5be0
[  463.209965]  ? find_vma+0x34/0x190
[  463.213506]  __do_page_fault+0x5e8/0xe60
[  463.217902]  ? trace_hardirqs_off+0xb8/0x310
[  463.222326]  do_page_fault+0xf2/0x7e0
[  463.226129]  ? vmalloc_sync_all+0x30/0x30
[  463.230270]  ? error_entry+0x70/0xd0
[  463.233980]  ? trace_hardirqs_off_caller+0xbb/0x310
[  463.238987]  ? trace_hardirqs_on_caller+0xc0/0x310
[  463.243907]  ? syscall_return_slowpath+0x5e0/0x5e0
[  463.248827]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  463.253668]  ? trace_hardirqs_on_caller+0x310/0x310
[  463.259641]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  463.265089]  ? prepare_exit_to_usermode+0x291/0x3b0
[  463.270101]  ? page_fault+0x8/0x30
[  463.273644]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  463.278482]  ? page_fault+0x8/0x30
[  463.282037]  page_fault+0x1e/0x30
[  463.285481] RIP: 0033:0x45ddf3
[  463.288688] Code: Bad RIP value.
[  463.292042] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  463.297397] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  463.304659] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  463.311919] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  463.319183] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  463.326447] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  463.333724] warn_alloc_show_mem: 1 callbacks suppressed
[  463.333733] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  463.333734] Mem-Info:
[  463.333762] active_anon:54141 inactive_anon:292 isolated_anon:0
[  463.333762]  active_file:12 inactive_file:13 isolated_file:0
[  463.333762]  unevictable:0 dirty:0 writeback:0 unstable:0
[  463.333762]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  463.333762]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  463.333762]  free:13705 free_pcp:178 free_cma:0
[  463.339088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  463.339095] Call Trace:
[  463.345848] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  463.348236]  <IRQ>
[  463.382130] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  463.391581]  dump_stack+0x244/0x39d
[  463.394128] lowmem_reserve[]: 0 2818 6321 6321
[  463.421796]  ? dump_stack_print_info.cold.1+0x20/0x20
[  463.423915] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  463.450014]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.453607] lowmem_reserve[]: 0 0 3503 3503
[  463.458478]  ? do_raw_spin_lock+0x14f/0x350
[  463.463643] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  463.491142]  nmi_cpu_backtrace.cold.2+0x5c/0xa1
[  463.496645] lowmem_reserve[]: 0 0 0 0
[  463.500955]  ? lapic_can_unplug_cpu.cold.27+0x3f/0x3f
[  463.505241] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  463.534198]  nmi_trigger_cpumask_backtrace+0x1e8/0x22a
[  463.538856] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  463.542647]  arch_trigger_cpumask_backtrace+0x14/0x20
[  463.547804] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  463.561571]  rcu_dump_cpu_stacks+0x16f/0x1bc
[  463.566825] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  463.582082]  print_cpu_stall.cold.67+0x1f3/0x3c7
[  463.587259] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  463.601455]  ? print_other_cpu_stall+0x160/0x160
[  463.605847] 366 total pagecache pages
[  463.614665]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.619401] 0 pages in swap cache
[  463.627952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.632679] Swap cache stats: add 0, delete 0, find 0/0
[  463.636463]  ? do_trace_rcu_torture_read+0x10/0x10
[  463.641970] Free swap  = 0kB
[  463.645410]  ? rcu_preempt_need_deferred_qs+0x74/0x1f0
[  463.650909] Total swap = 0kB
[  463.650916] 1965979 pages RAM
[  463.656536]  ? __lock_is_held+0xb5/0x140
[  463.656552]  ? __rcu_read_lock+0x50/0x50
[  463.661455] 0 pages HighMem/MovableOnly
[  463.664461]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.669706] 342854 pages reserved
[  463.672711]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.675784] 0 pages cma reserved
[  463.679834]  ? check_preemption_disabled+0x48/0x280
[  463.683920] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  463.687826]  rcu_check_callbacks+0xf3b/0x13f0
[  463.693433] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  463.696775]  ? rcutree_dead_cpu+0x10/0x10
[  463.702280] syz-fuzzer cpuset=/ mems_allowed=0
[  463.705633]  ? lock_downgrade+0x900/0x900
[  463.744607]  ? lock_release+0x930/0xa00
[  463.748587]  ? zap_class+0x640/0x640
[  463.752296]  ? zap_class+0x640/0x640
[  463.756263]  ? zap_class+0x640/0x640
[  463.760460]  ? zap_class+0x640/0x640
[  463.764168]  ? find_held_lock+0x36/0x1c0
[  463.768225]  ? cpuacct_account_field+0x219/0x3d0
[  463.772976]  ? zap_class+0x640/0x640
[  463.776690]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.782220]  ? check_preemption_disabled+0x48/0x280
[  463.787238]  ? trace_hardirqs_off+0xb8/0x310
[  463.791639]  ? __lock_is_held+0xb5/0x140
[  463.795691]  ? trace_hardirqs_on+0x310/0x310
[  463.800106]  ? check_preemption_disabled+0x48/0x280
[  463.805126]  ? raise_softirq+0x199/0x420
[  463.809181]  ? raise_softirq_irqoff+0x2e0/0x2e0
[  463.813844]  ? account_system_index_time+0x333/0x5d0
[  463.818940]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.824468]  ? check_preemption_disabled+0x48/0x280
[  463.829484]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  463.835012]  ? hrtimer_run_queues+0x9a/0x400
[  463.839417]  ? run_local_timers+0x19b/0x230
[  463.843734]  ? timer_clear_idle+0x90/0x90
[  463.847872]  ? irqtime_account_process_tick.isra.6+0x38e/0x490
[  463.853841]  ? account_process_tick+0x282/0x350
[  463.858770]  update_process_times+0x2d/0x70
[  463.863102]  tick_sched_handle+0x9f/0x180
[  463.867246]  tick_sched_timer+0x45/0x130
[  463.871300]  __hrtimer_run_queues+0x41c/0x10d0
[  463.875882]  ? tick_sched_do_timer+0x1a0/0x1a0
[  463.880461]  ? hrtimer_start_range_ns+0xe00/0xe00
[  463.885306]  ? pvclock_read_flags+0x160/0x160
[  463.889816]  ? trace_hardirqs_on+0x310/0x310
[  463.894227]  ? kvm_clock_read+0x18/0x30
[  463.898194]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  463.903199]  ? ktime_get_update_offsets_now+0x3b3/0x540
[  463.908562]  ? do_timer+0x50/0x50
[  463.912010]  ? rwlock_bug.part.2+0x90/0x90
[  463.916237]  ? trace_hardirqs_on+0x310/0x310
[  463.920640]  ? rcu_softirq_qs+0x20/0x20
[  463.924774]  hrtimer_interrupt+0x313/0x780
[  463.929018]  smp_apic_timer_interrupt+0x1a1/0x760
[  463.933854]  ? smp_call_function_single_interrupt+0x650/0x650
[  463.939732]  ? interrupt_entry+0xb5/0xc0
[  463.943785]  ? trace_hardirqs_off_caller+0xbb/0x310
[  463.948791]  ? trace_hardirqs_off_caller+0xbb/0x310
[  463.953805]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  463.958938]  ? trace_hardirqs_on_caller+0x310/0x310
[  463.963946]  ? trace_hardirqs_on_caller+0x310/0x310
[  463.968950]  ? task_prio+0x50/0x50
[  463.972505]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  463.978127]  ? check_preemption_disabled+0x48/0x280
[  463.983144]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  463.987984]  apic_timer_interrupt+0xf/0x20
[  463.992204]  </IRQ>
[  463.994437] RIP: 0010:kmem_cache_alloc_node+0x247/0x730
[  463.999795] Code: 3f 7e 0f 85 32 ff ff ff e8 75 1d 3e ff e9 28 ff ff ff e8 ec 52 c3 ff 48 83 3d f4 9b 8f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 60
[  464.018689] RSP: 0000:ffff8801d9aff1a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  464.026390] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003b35e161
[  464.033650] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
[  464.040911] RBP: ffff8801d9aff210 R08: ffff8801d9af0b08 R09: 0000000000000002
[  464.048169] R10: 0000000000000000 R11: ffff8801d9af0240 R12: ffff8801d9a1c0c0
[  464.055605] R13: ffff8801d9a1c0c0 R14: 0000000000000000 R15: 0000000000000286
[  464.062969]  ? mark_held_locks+0xc7/0x130
[  464.067120]  __alloc_skb+0x119/0x770
[  464.070831]  ? netdev_alloc_frag+0x1f0/0x1f0
[  464.075247]  ? do_raw_spin_trylock+0x270/0x270
[  464.079828]  ? kmem_cache_alloc_trace+0x353/0x750
[  464.084667]  ? queue_work_on+0x12c/0x1e0
[  464.088727]  ? switchdev_port_obj_del+0xdc/0x440
[  464.093485]  ? switchdev_trans_item_enqueue+0x260/0x260
[  464.098847]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  464.103869]  __br_mdb_notify+0x4ff/0x15d0
[  464.108007]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  464.113117]  ? __br_mdb_add+0x7f0/0x7f0
[  464.117098]  ? mark_held_locks+0x130/0x130
[  464.121332]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  464.126427]  ? debug_object_assert_init+0x368/0x4b0
[  464.131438]  ? debug_object_init_on_stack+0x20/0x20
[  464.136448]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  464.141984]  br_mdb_notify+0x310/0x410
[  464.145869]  ? br_mdb_dump+0x27b0/0x27b0
[  464.149938]  br_multicast_del_pg+0x3df/0x790
[  464.154343]  ? br_mdb_ip_get+0x940/0x940
[  464.158659]  ? rwlock_bug.part.2+0x90/0x90
[  464.162892]  ? __lock_is_held+0xb5/0x140
[  464.166952]  br_multicast_port_group_expired+0x189/0x1e0
[  464.172411]  call_timer_fn+0x272/0x920
[  464.176291]  ? br_multicast_del_pg+0x790/0x790
[  464.180863]  ? process_timeout+0x40/0x40
[  464.184925]  ? __run_timers+0x7da/0xc70
[  464.188896]  ? _raw_spin_unlock_irq+0x27/0x80
[  464.193394]  ? _raw_spin_unlock_irq+0x27/0x80
[  464.197878]  ? br_multicast_del_pg+0x790/0x790
[  464.202452]  ? lockdep_hardirqs_on+0x296/0x5b0
[  464.207033]  ? trace_hardirqs_on+0xbd/0x310
[  464.211355]  ? kasan_check_read+0x11/0x20
[  464.215498]  ? __run_timers+0x7da/0xc70
[  464.219464]  ? trace_hardirqs_off_caller+0x310/0x310
[  464.224563]  ? br_multicast_del_pg+0x790/0x790
[  464.229162]  ? br_multicast_del_pg+0x790/0x790
[  464.233733]  __run_timers+0x7e5/0xc70
[  464.237532]  ? timer_fixup_init+0x70/0x70
[  464.241669]  ? _raw_spin_unlock_irq+0x27/0x80
[  464.246156]  ? _raw_spin_unlock_irq+0x27/0x80
[  464.250660]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  464.255239]  ? trace_hardirqs_on+0xbd/0x310
[  464.259876]  ? kasan_check_read+0x11/0x20
[  464.264016]  ? finish_task_switch+0x1f4/0x910
[  464.268505]  ? trace_hardirqs_off_caller+0x310/0x310
[  464.273600]  ? compat_start_thread+0x80/0x80
[  464.278038]  ? pvclock_read_flags+0x160/0x160
[  464.282535]  ? __switch_to_asm+0x34/0x70
[  464.286588]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  464.292119]  ? check_preemption_disabled+0x48/0x280
[  464.297142]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  464.302676]  ? rcu_pm_notify+0xc0/0xc0
[  464.306556]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  464.312093]  ? check_preemption_disabled+0x48/0x280
[  464.317110]  run_timer_softirq+0x52/0xb0
[  464.321182]  ? rcu_read_lock_sched_held+0x14f/0x180
[  464.326193]  __do_softirq+0x308/0xb7e
[  464.330083]  ? trace_hardirqs_on_caller+0xc0/0x310
[  464.335010]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  464.340102]  ? trace_hardirqs_on+0x310/0x310
[  464.344514]  ? schedule+0x108/0x460
[  464.348142]  ? trace_hardirqs_off+0xb8/0x310
[  464.352562]  ? smpboot_thread_fn+0x68b/0xa00
[  464.357269]  ? trace_hardirqs_on+0x310/0x310
[  464.361673]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  464.367205]  ? check_preemption_disabled+0x48/0x280
[  464.372231]  ? takeover_tasklets+0xa90/0xa90
[  464.376649]  run_ksoftirqd+0x5e/0x100
[  464.380448]  smpboot_thread_fn+0x68b/0xa00
[  464.384683]  ? sort_range+0x30/0x30
[  464.388302]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  464.393398]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  464.398933]  ? __kthread_parkme+0xfb/0x1a0
[  464.403164]  ? sort_range+0x30/0x30
[  464.406784]  kthread+0x35a/0x440
[  464.410144]  ? kthread_stop+0x900/0x900
[  464.414113]  ret_from_fork+0x3a/0x50
[  464.417841] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  464.418248] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  464.424772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  464.435069] ksoftirqd/0 cpuset=/ mems_allowed=0
[  464.444404] Call Trace:
[  464.451616]  <IRQ>
[  464.453767]  dump_stack+0x244/0x39d
[  464.458350]  ? dump_stack_print_info.cold.1+0x20/0x20
[  464.463546]  warn_alloc.cold.116+0xb7/0x1bd
[  464.467864]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  464.472703]  ? lock_downgrade+0x900/0x900
[  464.476850]  ? trace_hardirqs_off+0xb8/0x310
[  464.481258]  ? trace_hardirqs_off+0xb8/0x310
[  464.485667]  __alloc_pages_slowpath+0x26e8/0x2e10
[  464.490527]  ? warn_alloc+0x120/0x120
[  464.494328]  ? print_usage_bug+0xc0/0xc0
[  464.498385]  ? warn_alloc+0x120/0x120
[  464.502180]  ? warn_alloc+0x120/0x120
[  464.505975]  ? print_usage_bug+0xc0/0xc0
[  464.510040]  ? kvm_clock_read+0x18/0x30
[  464.514099]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  464.519106]  ? print_usage_bug+0xc0/0xc0
[  464.523176]  ? __lock_acquire+0x62f/0x4c20
[  464.527407]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  464.532982]  ? should_fail+0x22d/0xd01
[  464.536861]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  464.542132]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  464.547224]  ? __lock_acquire+0x62f/0x4c20
[  464.551457]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  464.557293]  ? __lock_acquire+0x62f/0x4c20
[  464.561520]  ? should_fail+0x22d/0xd01
[  464.565393]  ? rcu_irq_exit+0x1a2/0x390
[  464.569368]  ? mark_held_locks+0x130/0x130
[  464.573598]  ? mark_held_locks+0x130/0x130
[  464.577821]  ? try_to_wake_up+0x11c/0x1490
[  464.582060]  ? lock_downgrade+0x900/0x900
[  464.586209]  ? zap_class+0x640/0x640
[  464.589914]  ? print_usage_bug+0xc0/0xc0
[  464.593969]  ? trace_hardirqs_off+0xb8/0x310
[  464.598374]  ? kasan_check_read+0x11/0x20
[  464.602517]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  464.608058]  ? check_preemption_disabled+0x48/0x280
[  464.613075]  ? __lock_is_held+0xb5/0x140
[  464.617138]  __alloc_pages_nodemask+0xa80/0xde0
[  464.621808]  ? zap_class+0x640/0x640
[  464.625522]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  464.630547]  ? find_held_lock+0x36/0x1c0
[  464.634615]  ? ____cache_alloc_node+0x1c7/0x1e0
[  464.639282]  ? lock_downgrade+0x900/0x900
[  464.643432]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  464.648967]  cache_grow_begin+0xa5/0x8c0
[  464.653031]  ? do_raw_spin_unlock+0xa7/0x330
[  464.658428]  fallback_alloc+0x204/0x2e0
[  464.662400]  ____cache_alloc_node+0x1c7/0x1e0
[  464.666894]  kmem_cache_alloc_node+0xe3/0x730
[  464.671386]  ? ipv6_get_ifaddr+0x42e/0x620
[  464.675622]  __alloc_skb+0x119/0x770
[  464.679325]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  464.684597]  ? netdev_alloc_frag+0x1f0/0x1f0
[  464.689003]  ? lock_downgrade+0x900/0x900
[  464.693161]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  464.698695]  ? refcount_sub_and_test_checked+0x203/0x310
[  464.704145]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  464.709588]  ? addrconf_rs_timer+0x690/0x690
[  464.714007]  ndisc_alloc_skb+0x144/0x340
[  464.718070]  ndisc_send_rs+0x331/0x6e0
[  464.721958]  addrconf_rs_timer+0x314/0x690
[  464.726188]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  464.730425]  call_timer_fn+0x272/0x920
[  464.734308]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  464.738534]  ? process_timeout+0x40/0x40
[  464.742608]  ? mark_held_locks+0xc7/0x130
[  464.746747]  ? _raw_spin_unlock_irq+0x27/0x80
[  464.751227]  ? _raw_spin_unlock_irq+0x27/0x80
[  464.756029]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  464.760257]  ? lockdep_hardirqs_on+0x296/0x5b0
[  464.764831]  ? trace_hardirqs_on+0xbd/0x310
[  464.769139]  ? kasan_check_read+0x11/0x20
[  464.773293]  ? __run_timers+0x7da/0xc70
[  464.777258]  ? trace_hardirqs_off_caller+0x310/0x310
[  464.782364]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  464.786594]  __run_timers+0x7e5/0xc70
[  464.790395]  ? timer_fixup_init+0x70/0x70
[  464.794540]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  464.799553]  ? zap_class+0x640/0x640
[  464.803279]  ? print_usage_bug+0xc0/0xc0
[  464.807352]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  464.812550]  ? find_held_lock+0x36/0x1c0
[  464.816608]  ? zap_class+0x640/0x640
[  464.820321]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  464.825857]  ? check_preemption_disabled+0x48/0x280
[  464.830877]  ? __lock_is_held+0xb5/0x140
[  464.834932]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  464.840462]  ? check_preemption_disabled+0x48/0x280
[  464.845480]  run_timer_softirq+0x52/0xb0
[  464.849539]  ? rcu_read_lock_sched_held+0x14f/0x180
[  464.854551]  __do_softirq+0x308/0xb7e
[  464.858931]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  464.863435]  ? lock_downgrade+0x900/0x900
[  464.867580]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  464.872681]  ? pvclock_read_flags+0x160/0x160
[  464.877170]  ? lapic_next_event+0x5a/0x90
[  464.881313]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  464.886852]  ? kvm_clock_read+0x18/0x30
[  464.890818]  ? kvm_sched_clock_read+0x9/0x20
[  464.895252]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  464.900796]  ? check_preemption_disabled+0x48/0x280
[  464.905815]  irq_exit+0x17f/0x1c0
[  464.909260]  smp_apic_timer_interrupt+0x1cb/0x760
[  464.914090]  ? smp_reschedule_interrupt+0x109/0x650
[  464.919101]  ? smp_call_function_single_interrupt+0x650/0x650
[  464.924991]  ? interrupt_entry+0xb5/0xc0
[  464.929051]  ? trace_hardirqs_off_caller+0xbb/0x310
[  464.934065]  ? trace_hardirqs_off_caller+0xbb/0x310
[  464.939078]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  464.943914]  ? trace_hardirqs_on_caller+0x310/0x310
[  464.948926]  ? trace_hardirqs_on_caller+0x310/0x310
[  464.953938]  ? task_prio+0x50/0x50
[  464.958227]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  464.963766]  ? check_preemption_disabled+0x48/0x280
[  464.968803]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  464.973643]  apic_timer_interrupt+0xf/0x20
[  464.977867]  </IRQ>
[  464.980098] RIP: 0010:dump_stack+0x358/0x39d
[  464.984503] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  465.003399] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  465.011189] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  465.018449] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  465.025708] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  465.032971] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  465.040240] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  465.047553]  ? dump_stack+0x34f/0x39d
[  465.051368]  ? dump_stack_print_info.cold.1+0x20/0x20
[  465.057537]  ? mark_held_locks+0x130/0x130
[  465.061763]  ? mark_held_locks+0x130/0x130
[  465.066004]  dump_header+0x27b/0xf72
[  465.069718]  ? pagefault_out_of_memory+0x197/0x197
[  465.074840]  ? __lock_acquire+0x62f/0x4c20
[  465.079069]  ? percpu_ref_get_many+0x240/0x240
[  465.083649]  ? print_usage_bug+0xc0/0xc0
[  465.087717]  ? zap_class+0x640/0x640
[  465.091424]  ? print_usage_bug+0xc0/0xc0
[  465.095479]  ? print_usage_bug+0xc0/0xc0
[  465.099539]  ? zap_class+0x640/0x640
[  465.103248]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  465.108779]  ? find_held_lock+0x36/0x1c0
[  465.112843]  ? mark_held_locks+0xc7/0x130
[  465.116985]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  465.122084]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  465.127182]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  465.131753]  ? trace_hardirqs_on+0xbd/0x310
[  465.136064]  ? kasan_check_read+0x11/0x20
[  465.140204]  ? ___ratelimit+0x3b4/0x672
[  465.144188]  ? trace_hardirqs_off_caller+0x310/0x310
[  465.149289]  ? trace_hardirqs_on+0x310/0x310
[  465.153694]  ? lock_downgrade+0x900/0x900
[  465.158647]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  465.163741]  ? ___ratelimit+0x3b9/0x672
[  465.167711]  ? idr_get_free+0xf70/0xf70
[  465.171679]  ? find_held_lock+0x36/0x1c0
[  465.175739]  oom_kill_process.cold.27+0x10/0x903
[  465.180491]  ? zap_class+0x640/0x640
[  465.184205]  ? check_preemption_disabled+0x48/0x280
[  465.189216]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  465.194135]  ? kasan_check_read+0x11/0x20
[  465.198274]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  465.203540]  ? oom_evaluate_task+0x540/0x540
[  465.207944]  ? find_held_lock+0x36/0x1c0
[  465.212015]  ? out_of_memory+0x974/0x1430
[  465.216159]  ? lock_downgrade+0x900/0x900
[  465.220302]  ? check_preemption_disabled+0x48/0x280
[  465.225311]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  465.230231]  ? kasan_check_read+0x11/0x20
[  465.234381]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  465.239652]  ? rcu_softirq_qs+0x20/0x20
[  465.243623]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  465.249153]  ? oom_evaluate_task+0x302/0x540
[  465.253567]  out_of_memory+0xa84/0x1430
[  465.257997]  ? oom_killer_disable+0x3a0/0x3a0
[  465.262485]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  465.267410]  ? __ww_mutex_check_waiters+0x160/0x160
[  465.272428]  __alloc_pages_slowpath+0x2354/0x2e10
[  465.277288]  ? warn_alloc+0x120/0x120
[  465.281080]  ? mark_held_locks+0x130/0x130
[  465.285310]  ? find_get_entry+0xaae/0x1120
[  465.289548]  ? filemap_map_pages+0x1a20/0x1a20
[  465.294139]  ? zap_class+0x640/0x640
[  465.297851]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  465.303394]  ? check_preemption_disabled+0x48/0x280
[  465.308414]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  465.313963]  ? should_fail+0x22d/0xd01
[  465.317856]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  465.322955]  ? zap_class+0x640/0x640
[  465.326687]  ? __lock_is_held+0xb5/0x140
[  465.330749]  ? mark_held_locks+0x130/0x130
[  465.334991]  ? lock_release+0xa00/0xa00
[  465.338963]  ? perf_trace_sched_process_exec+0x860/0x860
[  465.344413]  ? xa_load+0x2ba/0x460
[  465.347952]  ? lock_downgrade+0x900/0x900
[  465.352106]  ? __might_sleep+0x95/0x190
[  465.356839]  __alloc_pages_nodemask+0xa80/0xde0
[  465.361513]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  465.366528]  ? __page_cache_alloc+0x191/0x5c0
[  465.371017]  ? xa_load+0x2e1/0x460
[  465.374547]  ? xa_clear_mark+0x40/0x40
[  465.378427]  ? zap_class+0x640/0x640
[  465.382141]  ? zap_class+0x640/0x640
[  465.385850]  ? zap_class+0x640/0x640
[  465.389558]  ? __do_page_cache_readahead+0x663/0x810
[  465.394664]  ? find_held_lock+0x36/0x1c0
[  465.398728]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  465.404264]  alloc_pages_current+0x173/0x350
[  465.408684]  __page_cache_alloc+0x38c/0x5c0
[  465.413005]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  465.417930]  ? kasan_check_read+0x11/0x20
[  465.422072]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  465.427344]  ? generic_perform_write+0x6a0/0x6a0
[  465.432097]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  465.437633]  ? check_preemption_disabled+0x48/0x280
[  465.442647]  filemap_fault+0x1595/0x25f0
[  465.446709]  ? __lock_page_or_retry+0xa00/0xa00
[  465.451374]  ? mark_held_locks+0x130/0x130
[  465.456386]  ? filemap_map_pages+0xd6b/0x1a20
[  465.460877]  ? lock_downgrade+0x900/0x900
[  465.465023]  ? check_preemption_disabled+0x48/0x280
[  465.470037]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  465.474960]  ? kasan_check_read+0x11/0x20
[  465.479106]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  465.484372]  ? rcu_softirq_qs+0x20/0x20
[  465.488437]  ? filemap_map_pages+0xd92/0x1a20
[  465.492936]  ? find_get_entries_tag+0x1400/0x1400
[  465.497775]  ? debug_object_destroy+0x2b0/0x2b0
[  465.502454]  ? lock_pi_update_atomic+0x150/0x150
[  465.507205]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  465.512745]  ? lock_acquire+0x1ed/0x520
[  465.516709]  ? ext4_filemap_fault+0x7a/0xad
[  465.521021]  ? lock_release+0xa00/0xa00
[  465.524998]  ? perf_trace_sched_process_exec+0x860/0x860
[  465.530442]  ? print_usage_bug+0xc0/0xc0
[  465.534502]  ? print_usage_bug+0xc0/0xc0
[  465.538570]  ? down_read+0x8d/0x120
[  465.542183]  ? ext4_filemap_fault+0x7a/0xad
[  465.546499]  ? __down_interruptible+0x700/0x700
[  465.551165]  ext4_filemap_fault+0x82/0xad
[  465.556277]  __do_fault+0x100/0x6b0
[  465.559901]  ? pmd_devmap_trans_unstable+0x220/0x220
[  465.565003]  ? mark_held_locks+0x130/0x130
[  465.569249]  ? mark_held_locks+0x130/0x130
[  465.573485]  ? do_raw_spin_trylock+0x270/0x270
[  465.578065]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  465.583598]  __handle_mm_fault+0x3ea0/0x5be0
[  465.587997]  ? perf_trace_lock+0x7a0/0x7a0
[  465.592235]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  465.597076]  ? __switch_to_asm+0x34/0x70
[  465.601131]  ? __switch_to_asm+0x34/0x70
[  465.605195]  ? zap_class+0x640/0x640
[  465.608905]  ? zap_class+0x640/0x640
[  465.612610]  ? __x64_sys_futex+0x53e/0x6a0
[  465.616844]  ? find_held_lock+0x36/0x1c0
[  465.620908]  ? handle_mm_fault+0x42a/0xc70
[  465.625142]  ? lock_downgrade+0x900/0x900
[  465.629281]  ? check_preemption_disabled+0x48/0x280
[  465.634293]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  465.639213]  ? kasan_check_read+0x11/0x20
[  465.643352]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  465.648626]  ? rcu_softirq_qs+0x20/0x20
[  465.652594]  ? trace_hardirqs_off_caller+0x310/0x310
[  465.658625]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  465.664161]  ? check_preemption_disabled+0x48/0x280
[  465.669180]  handle_mm_fault+0x54f/0xc70
[  465.673244]  ? __handle_mm_fault+0x5be0/0x5be0
[  465.677829]  ? find_vma+0x34/0x190
[  465.681368]  __do_page_fault+0x5e8/0xe60
[  465.685421]  ? trace_hardirqs_off+0xb8/0x310
[  465.689830]  do_page_fault+0xf2/0x7e0
[  465.693629]  ? vmalloc_sync_all+0x30/0x30
[  465.697779]  ? error_entry+0x70/0xd0
[  465.701489]  ? trace_hardirqs_off_caller+0xbb/0x310
[  465.706504]  ? trace_hardirqs_on_caller+0xc0/0x310
[  465.711438]  ? syscall_return_slowpath+0x5e0/0x5e0
[  465.716355]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  465.721191]  ? trace_hardirqs_on_caller+0x310/0x310
[  465.726203]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  465.731653]  ? prepare_exit_to_usermode+0x291/0x3b0
[  465.736662]  ? page_fault+0x8/0x30
[  465.740199]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  465.745033]  ? page_fault+0x8/0x30
[  465.748569]  page_fault+0x1e/0x30
[  465.752013] RIP: 0033:0x45ddf3
[  465.756001] Code: Bad RIP value.
[  465.759734] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  465.765089] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  465.772350] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  465.779614] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  465.786877] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  465.794137] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  465.801414] Mem-Info:
[  465.801425] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  465.801435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  465.803840] active_anon:54141 inactive_anon:292 isolated_anon:0
[  465.803840]  active_file:12 inactive_file:13 isolated_file:0
[  465.803840]  unevictable:0 dirty:0 writeback:0 unstable:0
[  465.803840]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  465.803840]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  465.803840]  free:13705 free_pcp:178 free_cma:0
[  465.810555] Call Trace:
[  465.819927] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  465.852777]  dump_stack+0x244/0x39d
[  465.856257] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  465.884522]  ? dump_stack_print_info.cold.1+0x20/0x20
[  465.888108] lowmem_reserve[]: 0 2818 6321 6321
[  465.914222]  warn_alloc.cold.116+0xb7/0x1bd
[  465.919373] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  465.924173]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  465.928704] lowmem_reserve[]: 0 0 3503 3503
[  465.956562]  ? lock_downgrade+0x900/0x900
[  465.961363] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  465.965675]  ? trace_hardirqs_off+0xb8/0x310
[  465.969784] lowmem_reserve[]: 0 0 0 0
[  465.998834]  ? trace_hardirqs_off+0xb8/0x310
[  466.003209] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  466.007004]  __alloc_pages_slowpath+0x26e8/0x2e10
[  466.011371] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  466.024908]  ? warn_alloc+0x120/0x120
[  466.029699] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  466.044958]  ? warn_alloc+0x120/0x120
[  466.048727] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  466.063324]  ? warn_alloc+0x120/0x120
[  466.067116] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  466.075928]  ? trace_hardirqs_off+0xb8/0x310
[  466.079702] 366 total pagecache pages
[  466.088261]  ? print_usage_bug+0xc0/0xc0
[  466.092667] 0 pages in swap cache
[  466.096448]  ? print_usage_bug+0xc0/0xc0
[  466.100483] Swap cache stats: add 0, delete 0, find 0/0
[  466.103924]  ? __lock_acquire+0x62f/0x4c20
[  466.107952] Free swap  = 0kB
[  466.107959] Total swap = 0kB
[  466.113304]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  466.117505] 1965979 pages RAM
[  466.120509]  ? should_fail+0x22d/0xd01
[  466.123497] 0 pages HighMem/MovableOnly
[  466.129018]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  466.132092] 342854 pages reserved
[  466.132099] 0 pages cma reserved
[  466.135978]  ? __lock_acquire+0x62f/0x4c20
[  466.139975] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  466.145007]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  466.145019]  ? __lock_acquire+0x62f/0x4c20
[  466.145033]  ? should_fail+0x22d/0xd01
[  466.148520] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  466.151816]  ? mark_held_locks+0x130/0x130
[  466.157022] syz-fuzzer cpuset=/ mems_allowed=0
[  466.163503]  ? mark_held_locks+0x130/0x130
[  466.199859]  ? zap_class+0x640/0x640
[  466.203566]  ? ret_from_fork+0x3a/0x50
[  466.207461]  ? __lock_acquire+0x62f/0x4c20
[  466.211694]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  466.217224]  ? check_preemption_disabled+0x48/0x280
[  466.222243]  ? __lock_is_held+0xb5/0x140
[  466.226300]  __alloc_pages_nodemask+0xa80/0xde0
[  466.231001]  ? zap_class+0x640/0x640
[  466.234712]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  466.239750]  ? find_held_lock+0x36/0x1c0
[  466.243818]  ? ____cache_alloc_node+0x1c7/0x1e0
[  466.248481]  ? lock_downgrade+0x900/0x900
[  466.252628]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  466.258480]  cache_grow_begin+0xa5/0x8c0
[  466.262534]  ? do_raw_spin_unlock+0xa7/0x330
[  466.266955]  fallback_alloc+0x204/0x2e0
[  466.270944]  ____cache_alloc_node+0x1c7/0x1e0
[  466.275436]  kmem_cache_alloc_node+0xe3/0x730
[  466.279932]  ? mark_held_locks+0xc7/0x130
[  466.284086]  __alloc_skb+0x119/0x770
[  466.287808]  ? netdev_alloc_frag+0x1f0/0x1f0
[  466.292205]  ? do_raw_spin_trylock+0x270/0x270
[  466.296790]  ? kmem_cache_alloc_trace+0x353/0x750
[  466.301630]  ? queue_work_on+0x12c/0x1e0
[  466.305686]  ? switchdev_port_obj_del+0xdc/0x440
[  466.310436]  ? switchdev_trans_item_enqueue+0x260/0x260
[  466.315797]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  466.320814]  __br_mdb_notify+0x4ff/0x15d0
[  466.324961]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  466.330067]  ? __br_mdb_add+0x7f0/0x7f0
[  466.334039]  ? mark_held_locks+0x130/0x130
[  466.338272]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  466.343375]  ? debug_object_assert_init+0x368/0x4b0
[  466.348389]  ? debug_object_init_on_stack+0x20/0x20
[  466.353410]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  466.359242]  br_mdb_notify+0x310/0x410
[  466.363127]  ? br_mdb_dump+0x27b0/0x27b0
[  466.367190]  br_multicast_del_pg+0x3df/0x790
[  466.371590]  ? br_mdb_ip_get+0x940/0x940
[  466.375765]  ? rwlock_bug.part.2+0x90/0x90
[  466.379994]  ? __lock_is_held+0xb5/0x140
[  466.384062]  br_multicast_port_group_expired+0x189/0x1e0
[  466.389508]  call_timer_fn+0x272/0x920
[  466.393391]  ? br_multicast_del_pg+0x790/0x790
[  466.397966]  ? process_timeout+0x40/0x40
[  466.402037]  ? __run_timers+0x7da/0xc70
[  466.406007]  ? _raw_spin_unlock_irq+0x27/0x80
[  466.410497]  ? _raw_spin_unlock_irq+0x27/0x80
[  466.414989]  ? br_multicast_del_pg+0x790/0x790
[  466.419563]  ? lockdep_hardirqs_on+0x296/0x5b0
[  466.424142]  ? trace_hardirqs_on+0xbd/0x310
[  466.428456]  ? kasan_check_read+0x11/0x20
[  466.432597]  ? __run_timers+0x7da/0xc70
[  466.436565]  ? trace_hardirqs_off_caller+0x310/0x310
[  466.441668]  ? br_multicast_del_pg+0x790/0x790
[  466.446266]  ? br_multicast_del_pg+0x790/0x790
[  466.450851]  __run_timers+0x7e5/0xc70
[  466.454651]  ? timer_fixup_init+0x70/0x70
[  466.459115]  ? _raw_spin_unlock_irq+0x27/0x80
[  466.463601]  ? _raw_spin_unlock_irq+0x27/0x80
[  466.468086]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  466.472659]  ? trace_hardirqs_on+0xbd/0x310
[  466.477059]  ? kasan_check_read+0x11/0x20
[  466.481200]  ? finish_task_switch+0x1f4/0x910
[  466.485690]  ? trace_hardirqs_off_caller+0x310/0x310
[  466.490783]  ? compat_start_thread+0x80/0x80
[  466.495222]  ? pvclock_read_flags+0x160/0x160
[  466.499712]  ? __switch_to_asm+0x34/0x70
[  466.503768]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  466.509301]  ? check_preemption_disabled+0x48/0x280
[  466.514319]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  466.519854]  ? rcu_pm_notify+0xc0/0xc0
[  466.523735]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  466.529284]  ? check_preemption_disabled+0x48/0x280
[  466.534300]  run_timer_softirq+0x52/0xb0
[  466.538352]  ? rcu_read_lock_sched_held+0x14f/0x180
[  466.543371]  __do_softirq+0x308/0xb7e
[  466.547161]  ? trace_hardirqs_on_caller+0xc0/0x310
[  466.552084]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  466.557477]  ? trace_hardirqs_on+0x310/0x310
[  466.561882]  ? schedule+0x108/0x460
[  466.565517]  ? trace_hardirqs_off+0xb8/0x310
[  466.569932]  ? smpboot_thread_fn+0x68b/0xa00
[  466.574334]  ? trace_hardirqs_on+0x310/0x310
[  466.578744]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  466.584274]  ? check_preemption_disabled+0x48/0x280
[  466.589282]  ? takeover_tasklets+0xa90/0xa90
[  466.593687]  run_ksoftirqd+0x5e/0x100
[  466.597480]  smpboot_thread_fn+0x68b/0xa00
[  466.601709]  ? sort_range+0x30/0x30
[  466.605329]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  466.610424]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  466.615954]  ? __kthread_parkme+0xfb/0x1a0
[  466.620180]  ? sort_range+0x30/0x30
[  466.623797]  kthread+0x35a/0x440
[  466.627157]  ? kthread_stop+0x900/0x900
[  466.631127]  ret_from_fork+0x3a/0x50
[  466.634848] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  466.634996] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  466.641771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  466.652053] ksoftirqd/0 cpuset=/ mems_allowed=0
[  466.661879] Call Trace:
[  466.669102]  <IRQ>
[  466.671250]  dump_stack+0x244/0x39d
[  466.674878]  ? dump_stack_print_info.cold.1+0x20/0x20
[  466.680081]  warn_alloc.cold.116+0xb7/0x1bd
[  466.684400]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  466.689242]  ? lock_downgrade+0x900/0x900
[  466.693389]  ? trace_hardirqs_off+0xb8/0x310
[  466.697800]  ? trace_hardirqs_off+0xb8/0x310
[  466.702207]  __alloc_pages_slowpath+0x26e8/0x2e10
[  466.707071]  ? warn_alloc+0x120/0x120
[  466.710867]  ? print_usage_bug+0xc0/0xc0
[  466.714929]  ? warn_alloc+0x120/0x120
[  466.718735]  ? warn_alloc+0x120/0x120
[  466.722533]  ? print_usage_bug+0xc0/0xc0
[  466.726589]  ? print_usage_bug+0xc0/0xc0
[  466.730647]  ? __lock_acquire+0x62f/0x4c20
[  466.734879]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  466.740419]  ? should_fail+0x22d/0xd01
[  466.744307]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  466.749409]  ? __lock_acquire+0x62f/0x4c20
[  466.753641]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  466.759669]  ? __lock_acquire+0x62f/0x4c20
[  466.763931]  ? should_fail+0x22d/0xd01
[  466.767812]  ? find_held_lock+0x36/0x1c0
[  466.771876]  ? mark_held_locks+0x130/0x130
[  466.776117]  ? mark_held_locks+0x130/0x130
[  466.780358]  ? try_to_wake_up+0x11c/0x1490
[  466.784588]  ? lock_downgrade+0x900/0x900
[  466.788748]  ? zap_class+0x640/0x640
[  466.792468]  ? print_usage_bug+0xc0/0xc0
[  466.796521]  ? trace_hardirqs_off+0xb8/0x310
[  466.800923]  ? kasan_check_read+0x11/0x20
[  466.805066]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  466.810597]  ? check_preemption_disabled+0x48/0x280
[  466.815632]  ? __lock_is_held+0xb5/0x140
[  466.819691]  __alloc_pages_nodemask+0xa80/0xde0
[  466.824352]  ? zap_class+0x640/0x640
[  466.828063]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  466.833083]  ? find_held_lock+0x36/0x1c0
[  466.837149]  ? ____cache_alloc_node+0x1c7/0x1e0
[  466.841814]  ? lock_downgrade+0x900/0x900
[  466.845969]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  466.851504]  cache_grow_begin+0xa5/0x8c0
[  466.856547]  ? do_raw_spin_unlock+0xa7/0x330
[  466.860959]  fallback_alloc+0x204/0x2e0
[  466.864932]  ____cache_alloc_node+0x1c7/0x1e0
[  466.869429]  kmem_cache_alloc_node+0xe3/0x730
[  466.873917]  ? ipv6_get_ifaddr+0x42e/0x620
[  466.878155]  __alloc_skb+0x119/0x770
[  466.881864]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  466.887144]  ? netdev_alloc_frag+0x1f0/0x1f0
[  466.891548]  ? lock_downgrade+0x900/0x900
[  466.895695]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  466.901225]  ? refcount_sub_and_test_checked+0x203/0x310
[  466.906670]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  466.912127]  ? addrconf_rs_timer+0x690/0x690
[  466.916536]  ndisc_alloc_skb+0x144/0x340
[  466.920591]  ndisc_send_rs+0x331/0x6e0
[  466.924479]  addrconf_rs_timer+0x314/0x690
[  466.928714]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  466.932953]  call_timer_fn+0x272/0x920
[  466.936837]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  466.941069]  ? process_timeout+0x40/0x40
[  466.945135]  ? mark_held_locks+0xc7/0x130
[  466.949279]  ? _raw_spin_unlock_irq+0x27/0x80
[  466.953766]  ? _raw_spin_unlock_irq+0x27/0x80
[  466.959049]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  466.963282]  ? lockdep_hardirqs_on+0x296/0x5b0
[  466.967861]  ? trace_hardirqs_on+0xbd/0x310
[  466.972180]  ? kasan_check_read+0x11/0x20
[  466.976322]  ? __run_timers+0x7da/0xc70
[  466.980290]  ? trace_hardirqs_off_caller+0x310/0x310
[  466.985402]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  466.989633]  __run_timers+0x7e5/0xc70
[  466.993440]  ? timer_fixup_init+0x70/0x70
[  466.997587]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  467.002596]  ? zap_class+0x640/0x640
[  467.006311]  ? print_usage_bug+0xc0/0xc0
[  467.010369]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  467.015560]  ? find_held_lock+0x36/0x1c0
[  467.019620]  ? zap_class+0x640/0x640
[  467.023331]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  467.028865]  ? check_preemption_disabled+0x48/0x280
[  467.033894]  ? __lock_is_held+0xb5/0x140
[  467.037955]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  467.043488]  ? check_preemption_disabled+0x48/0x280
[  467.048503]  run_timer_softirq+0x52/0xb0
[  467.052560]  ? rcu_read_lock_sched_held+0x14f/0x180
[  467.058042]  __do_softirq+0x308/0xb7e
[  467.061843]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  467.066334]  ? lock_downgrade+0x900/0x900
[  467.070476]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  467.075584]  ? pvclock_read_flags+0x160/0x160
[  467.080078]  ? lapic_next_event+0x5a/0x90
[  467.084220]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  467.089757]  ? kvm_clock_read+0x18/0x30
[  467.093729]  ? kvm_sched_clock_read+0x9/0x20
[  467.098131]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  467.103666]  ? check_preemption_disabled+0x48/0x280
[  467.108683]  irq_exit+0x17f/0x1c0
[  467.112132]  smp_apic_timer_interrupt+0x1cb/0x760
[  467.116964]  ? smp_reschedule_interrupt+0x109/0x650
[  467.121977]  ? smp_call_function_single_interrupt+0x650/0x650
[  467.127852]  ? interrupt_entry+0xb5/0xc0
[  467.131913]  ? trace_hardirqs_off_caller+0xbb/0x310
[  467.136920]  ? trace_hardirqs_off_caller+0xbb/0x310
[  467.141943]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  467.146780]  ? trace_hardirqs_on_caller+0x310/0x310
[  467.151788]  ? trace_hardirqs_on_caller+0x310/0x310
[  467.157564]  ? task_prio+0x50/0x50
[  467.161099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  467.166628]  ? check_preemption_disabled+0x48/0x280
[  467.171641]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  467.176489]  apic_timer_interrupt+0xf/0x20
[  467.180714]  </IRQ>
[  467.182951] RIP: 0010:dump_stack+0x358/0x39d
[  467.187357] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  467.206251] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  467.213961] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  467.221223] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  467.228487] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  467.235746] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  467.243006] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  467.250280]  ? dump_stack+0x34f/0x39d
[  467.254089]  ? dump_stack_print_info.cold.1+0x20/0x20
[  467.260098]  ? mark_held_locks+0x130/0x130
[  467.264327]  ? mark_held_locks+0x130/0x130
[  467.268559]  dump_header+0x27b/0xf72
[  467.272277]  ? pagefault_out_of_memory+0x197/0x197
[  467.277204]  ? __lock_acquire+0x62f/0x4c20
[  467.281433]  ? percpu_ref_get_many+0x240/0x240
[  467.286015]  ? print_usage_bug+0xc0/0xc0
[  467.290079]  ? zap_class+0x640/0x640
[  467.293789]  ? print_usage_bug+0xc0/0xc0
[  467.297844]  ? print_usage_bug+0xc0/0xc0
[  467.301906]  ? zap_class+0x640/0x640
[  467.305620]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  467.311183]  ? find_held_lock+0x36/0x1c0
[  467.315252]  ? mark_held_locks+0xc7/0x130
[  467.319401]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  467.324499]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  467.329596]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  467.334176]  ? trace_hardirqs_on+0xbd/0x310
[  467.338497]  ? kasan_check_read+0x11/0x20
[  467.342643]  ? ___ratelimit+0x3b4/0x672
[  467.346617]  ? trace_hardirqs_off_caller+0x310/0x310
[  467.351714]  ? trace_hardirqs_on+0x310/0x310
[  467.356882]  ? lock_downgrade+0x900/0x900
[  467.361031]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  467.366127]  ? ___ratelimit+0x3b9/0x672
[  467.370098]  ? idr_get_free+0xf70/0xf70
[  467.374082]  ? find_held_lock+0x36/0x1c0
[  467.378148]  oom_kill_process.cold.27+0x10/0x903
[  467.382898]  ? zap_class+0x640/0x640
[  467.386621]  ? check_preemption_disabled+0x48/0x280
[  467.391632]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  467.396557]  ? kasan_check_read+0x11/0x20
[  467.400697]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  467.405967]  ? oom_evaluate_task+0x540/0x540
[  467.410375]  ? find_held_lock+0x36/0x1c0
[  467.414441]  ? out_of_memory+0x974/0x1430
[  467.418584]  ? lock_downgrade+0x900/0x900
[  467.422724]  ? check_preemption_disabled+0x48/0x280
[  467.427740]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  467.432674]  ? kasan_check_read+0x11/0x20
[  467.436814]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  467.442090]  ? rcu_softirq_qs+0x20/0x20
[  467.446058]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  467.451587]  ? oom_evaluate_task+0x302/0x540
[  467.456768]  out_of_memory+0xa84/0x1430
[  467.460754]  ? oom_killer_disable+0x3a0/0x3a0
[  467.465329]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  467.470256]  ? __ww_mutex_check_waiters+0x160/0x160
[  467.475277]  __alloc_pages_slowpath+0x2354/0x2e10
[  467.480141]  ? warn_alloc+0x120/0x120
[  467.483934]  ? mark_held_locks+0x130/0x130
[  467.488166]  ? find_get_entry+0xaae/0x1120
[  467.492406]  ? filemap_map_pages+0x1a20/0x1a20
[  467.496989]  ? zap_class+0x640/0x640
[  467.500701]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  467.506237]  ? check_preemption_disabled+0x48/0x280
[  467.511247]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  467.516785]  ? should_fail+0x22d/0xd01
[  467.520692]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  467.525788]  ? zap_class+0x640/0x640
[  467.529517]  ? __lock_is_held+0xb5/0x140
[  467.533580]  ? mark_held_locks+0x130/0x130
[  467.537811]  ? lock_release+0xa00/0xa00
[  467.541785]  ? perf_trace_sched_process_exec+0x860/0x860
[  467.547228]  ? xa_load+0x2ba/0x460
[  467.550764]  ? lock_downgrade+0x900/0x900
[  467.554912]  ? __might_sleep+0x95/0x190
[  467.559146]  __alloc_pages_nodemask+0xa80/0xde0
[  467.563815]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  467.568831]  ? __page_cache_alloc+0x191/0x5c0
[  467.573326]  ? xa_load+0x2e1/0x460
[  467.576874]  ? xa_clear_mark+0x40/0x40
[  467.580759]  ? zap_class+0x640/0x640
[  467.584470]  ? zap_class+0x640/0x640
[  467.588174]  ? zap_class+0x640/0x640
[  467.591898]  ? __do_page_cache_readahead+0x663/0x810
[  467.596997]  ? find_held_lock+0x36/0x1c0
[  467.601056]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  467.606594]  alloc_pages_current+0x173/0x350
[  467.611004]  __page_cache_alloc+0x38c/0x5c0
[  467.615319]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  467.620245]  ? kasan_check_read+0x11/0x20
[  467.624387]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  467.629663]  ? generic_perform_write+0x6a0/0x6a0
[  467.634413]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  467.639948]  ? check_preemption_disabled+0x48/0x280
[  467.644965]  filemap_fault+0x1595/0x25f0
[  467.649031]  ? __lock_page_or_retry+0xa00/0xa00
[  467.653697]  ? mark_held_locks+0x130/0x130
[  467.658677]  ? filemap_map_pages+0xd6b/0x1a20
[  467.663171]  ? lock_downgrade+0x900/0x900
[  467.667312]  ? check_preemption_disabled+0x48/0x280
[  467.672327]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  467.677272]  ? kasan_check_read+0x11/0x20
[  467.681416]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  467.686684]  ? rcu_softirq_qs+0x20/0x20
[  467.690662]  ? filemap_map_pages+0xd92/0x1a20
[  467.695161]  ? find_get_entries_tag+0x1400/0x1400
[  467.700004]  ? debug_object_destroy+0x2b0/0x2b0
[  467.704679]  ? lock_pi_update_atomic+0x150/0x150
[  467.709430]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  467.714975]  ? lock_acquire+0x1ed/0x520
[  467.718945]  ? ext4_filemap_fault+0x7a/0xad
[  467.723277]  ? lock_release+0xa00/0xa00
[  467.727247]  ? perf_trace_sched_process_exec+0x860/0x860
[  467.732695]  ? print_usage_bug+0xc0/0xc0
[  467.736754]  ? print_usage_bug+0xc0/0xc0
[  467.740819]  ? down_read+0x8d/0x120
[  467.744447]  ? ext4_filemap_fault+0x7a/0xad
[  467.748761]  ? __down_interruptible+0x700/0x700
[  467.753432]  ext4_filemap_fault+0x82/0xad
[  467.758304]  __do_fault+0x100/0x6b0
[  467.761935]  ? pmd_devmap_trans_unstable+0x220/0x220
[  467.767034]  ? mark_held_locks+0x130/0x130
[  467.771265]  ? mark_held_locks+0x130/0x130
[  467.775495]  ? do_raw_spin_trylock+0x270/0x270
[  467.780081]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  467.785618]  __handle_mm_fault+0x3ea0/0x5be0
[  467.790021]  ? perf_trace_lock+0x7a0/0x7a0
[  467.794267]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  467.799111]  ? __switch_to_asm+0x34/0x70
[  467.803162]  ? __switch_to_asm+0x34/0x70
[  467.807231]  ? zap_class+0x640/0x640
[  467.810937]  ? zap_class+0x640/0x640
[  467.814649]  ? __x64_sys_futex+0x53e/0x6a0
[  467.818881]  ? find_held_lock+0x36/0x1c0
[  467.822943]  ? handle_mm_fault+0x42a/0xc70
[  467.827177]  ? lock_downgrade+0x900/0x900
[  467.831319]  ? check_preemption_disabled+0x48/0x280
[  467.836333]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  467.841259]  ? kasan_check_read+0x11/0x20
[  467.845398]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  467.850667]  ? rcu_softirq_qs+0x20/0x20
[  467.854639]  ? trace_hardirqs_off_caller+0x310/0x310
[  467.860751]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  467.866283]  ? check_preemption_disabled+0x48/0x280
[  467.871298]  handle_mm_fault+0x54f/0xc70
[  467.875358]  ? __handle_mm_fault+0x5be0/0x5be0
[  467.879953]  ? find_vma+0x34/0x190
[  467.883502]  __do_page_fault+0x5e8/0xe60
[  467.887553]  ? trace_hardirqs_off+0xb8/0x310
[  467.891968]  do_page_fault+0xf2/0x7e0
[  467.895763]  ? vmalloc_sync_all+0x30/0x30
[  467.899904]  ? error_entry+0x70/0xd0
[  467.903627]  ? trace_hardirqs_off_caller+0xbb/0x310
[  467.908637]  ? trace_hardirqs_on_caller+0xc0/0x310
[  467.913558]  ? syscall_return_slowpath+0x5e0/0x5e0
[  467.918477]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  467.923313]  ? trace_hardirqs_on_caller+0x310/0x310
[  467.928833]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  467.934287]  ? prepare_exit_to_usermode+0x291/0x3b0
[  467.939296]  ? page_fault+0x8/0x30
[  467.942835]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  467.947674]  ? page_fault+0x8/0x30
[  467.951207]  page_fault+0x1e/0x30
[  467.954650] RIP: 0033:0x45ddf3
[  467.958589] Code: Bad RIP value.
[  467.961942] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  467.967299] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  467.974559] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  467.981824] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  467.989086] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  467.996347] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  468.003645] warn_alloc_show_mem: 1 callbacks suppressed
[  468.003653] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  468.003655] Mem-Info:
[  468.003685] active_anon:54141 inactive_anon:292 isolated_anon:0
[  468.003685]  active_file:12 inactive_file:13 isolated_file:0
[  468.003685]  unevictable:0 dirty:0 writeback:0 unstable:0
[  468.003685]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  468.003685]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  468.003685]  free:13705 free_pcp:178 free_cma:0
[  468.009016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  468.015763] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  468.018153] Call Trace:
[  468.051005] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  468.060681]  dump_stack+0x244/0x39d
[  468.088315] lowmem_reserve[]: 0 2818 6321 6321
[  468.090893]  ? dump_stack_print_info.cold.1+0x20/0x20
[  468.116971] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  468.120598]  warn_alloc.cold.116+0xb7/0x1bd
[  468.125142] lowmem_reserve[]: 0 0 3503 3503
[  468.130317]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  468.158714] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  468.163033]  ? lock_downgrade+0x900/0x900
[  468.167323] lowmem_reserve[]: 0 0 0 0
[  468.172158]  ? trace_hardirqs_off+0xb8/0x310
[  468.201095] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  468.205235]  ? trace_hardirqs_off+0xb8/0x310
[  468.209000] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  468.213402]  __alloc_pages_slowpath+0x26e8/0x2e10
[  468.226884] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  468.231312]  ? warn_alloc+0x120/0x120
[  468.246542] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  468.251368]  ? warn_alloc+0x120/0x120
[  468.266348] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  468.270135]  ? warn_alloc+0x120/0x120
[  468.278936] 366 total pagecache pages
[  468.282723]  ? trace_hardirqs_off+0xb8/0x310
[  468.291274] 0 pages in swap cache
[  468.295052]  ? print_usage_bug+0xc0/0xc0
[  468.298824] Swap cache stats: add 0, delete 0, find 0/0
[  468.303214]  ? print_usage_bug+0xc0/0xc0
[  468.306633] Free swap  = 0kB
[  468.310685]  ? __lock_acquire+0x62f/0x4c20
[  468.316018] Total swap = 0kB
[  468.320065]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  468.323145] 1965979 pages RAM
[  468.327363]  ? should_fail+0x22d/0xd01
[  468.330344] 0 pages HighMem/MovableOnly
[  468.330351] 342854 pages reserved
[  468.335875]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  468.338948] 0 pages cma reserved
[  468.342826]  ? __lock_acquire+0x62f/0x4c20
[  468.346847] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  468.350214]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  468.356182] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  468.359457]  ? __lock_acquire+0x62f/0x4c20
[  468.363665] syz-fuzzer cpuset=/ mems_allowed=0
[  468.370144]  ? should_fail+0x22d/0xd01
[  468.398084]  ? mark_held_locks+0x130/0x130
[  468.402406]  ? mark_held_locks+0x130/0x130
[  468.406643]  ? zap_class+0x640/0x640
[  468.410348]  ? ret_from_fork+0x3a/0x50
[  468.414227]  ? __lock_acquire+0x62f/0x4c20
[  468.418457]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  468.423988]  ? check_preemption_disabled+0x48/0x280
[  468.429022]  ? __lock_is_held+0xb5/0x140
[  468.433103]  __alloc_pages_nodemask+0xa80/0xde0
[  468.437764]  ? zap_class+0x640/0x640
[  468.441484]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  468.446504]  ? find_held_lock+0x36/0x1c0
[  468.450566]  ? ____cache_alloc_node+0x1c7/0x1e0
[  468.455524]  ? lock_downgrade+0x900/0x900
[  468.459667]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  468.465206]  cache_grow_begin+0xa5/0x8c0
[  468.469265]  ? do_raw_spin_unlock+0xa7/0x330
[  468.473676]  fallback_alloc+0x204/0x2e0
[  468.477653]  ____cache_alloc_node+0x1c7/0x1e0
[  468.482154]  kmem_cache_alloc_node+0xe3/0x730
[  468.486642]  ? mark_held_locks+0xc7/0x130
[  468.490803]  __alloc_skb+0x119/0x770
[  468.494519]  ? netdev_alloc_frag+0x1f0/0x1f0
[  468.498922]  ? do_raw_spin_trylock+0x270/0x270
[  468.503495]  ? kmem_cache_alloc_trace+0x353/0x750
[  468.508346]  ? queue_work_on+0x12c/0x1e0
[  468.512407]  ? switchdev_port_obj_del+0xdc/0x440
[  468.517157]  ? switchdev_trans_item_enqueue+0x260/0x260
[  468.522515]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  468.527533]  __br_mdb_notify+0x4ff/0x15d0
[  468.531676]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  468.536788]  ? __br_mdb_add+0x7f0/0x7f0
[  468.540796]  ? mark_held_locks+0x130/0x130
[  468.545032]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  468.550129]  ? debug_object_assert_init+0x368/0x4b0
[  468.555326]  ? debug_object_init_on_stack+0x20/0x20
[  468.560333]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  468.565872]  br_mdb_notify+0x310/0x410
[  468.569756]  ? br_mdb_dump+0x27b0/0x27b0
[  468.573845]  br_multicast_del_pg+0x3df/0x790
[  468.578251]  ? br_mdb_ip_get+0x940/0x940
[  468.582305]  ? rwlock_bug.part.2+0x90/0x90
[  468.586539]  ? __lock_is_held+0xb5/0x140
[  468.590598]  br_multicast_port_group_expired+0x189/0x1e0
[  468.596042]  call_timer_fn+0x272/0x920
[  468.599926]  ? br_multicast_del_pg+0x790/0x790
[  468.604527]  ? process_timeout+0x40/0x40
[  468.608592]  ? __run_timers+0x7da/0xc70
[  468.612561]  ? _raw_spin_unlock_irq+0x27/0x80
[  468.617051]  ? _raw_spin_unlock_irq+0x27/0x80
[  468.621537]  ? br_multicast_del_pg+0x790/0x790
[  468.626112]  ? lockdep_hardirqs_on+0x296/0x5b0
[  468.630693]  ? trace_hardirqs_on+0xbd/0x310
[  468.635017]  ? kasan_check_read+0x11/0x20
[  468.639155]  ? __run_timers+0x7da/0xc70
[  468.643127]  ? trace_hardirqs_off_caller+0x310/0x310
[  468.648233]  ? br_multicast_del_pg+0x790/0x790
[  468.652818]  ? br_multicast_del_pg+0x790/0x790
[  468.657674]  __run_timers+0x7e5/0xc70
[  468.661492]  ? timer_fixup_init+0x70/0x70
[  468.665632]  ? _raw_spin_unlock_irq+0x27/0x80
[  468.670118]  ? _raw_spin_unlock_irq+0x27/0x80
[  468.674612]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  468.679190]  ? trace_hardirqs_on+0xbd/0x310
[  468.683503]  ? kasan_check_read+0x11/0x20
[  468.687649]  ? finish_task_switch+0x1f4/0x910
[  468.692142]  ? trace_hardirqs_off_caller+0x310/0x310
[  468.697236]  ? compat_start_thread+0x80/0x80
[  468.701657]  ? pvclock_read_flags+0x160/0x160
[  468.706145]  ? __switch_to_asm+0x34/0x70
[  468.710201]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  468.715742]  ? check_preemption_disabled+0x48/0x280
[  468.720773]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  468.726311]  ? rcu_pm_notify+0xc0/0xc0
[  468.730192]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  468.735723]  ? check_preemption_disabled+0x48/0x280
[  468.740736]  run_timer_softirq+0x52/0xb0
[  468.744804]  ? rcu_read_lock_sched_held+0x14f/0x180
[  468.749814]  __do_softirq+0x308/0xb7e
[  468.753611]  ? trace_hardirqs_on_caller+0xc0/0x310
[  468.758823]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  468.763923]  ? trace_hardirqs_on+0x310/0x310
[  468.768331]  ? schedule+0x108/0x460
[  468.771965]  ? trace_hardirqs_off+0xb8/0x310
[  468.776371]  ? smpboot_thread_fn+0x68b/0xa00
[  468.780783]  ? trace_hardirqs_on+0x310/0x310
[  468.785186]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  468.790719]  ? check_preemption_disabled+0x48/0x280
[  468.795727]  ? takeover_tasklets+0xa90/0xa90
[  468.800136]  run_ksoftirqd+0x5e/0x100
[  468.803931]  smpboot_thread_fn+0x68b/0xa00
[  468.808162]  ? sort_range+0x30/0x30
[  468.811792]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  468.816890]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  468.822425]  ? __kthread_parkme+0xfb/0x1a0
[  468.826655]  ? sort_range+0x30/0x30
[  468.830272]  kthread+0x35a/0x440
[  468.833633]  ? kthread_stop+0x900/0x900
[  468.837618]  ret_from_fork+0x3a/0x50
[  468.841340] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  468.841491] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  468.848276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  468.858889] ksoftirqd/0 cpuset=/ mems_allowed=0
[  468.868224] Call Trace:
[  468.875436]  <IRQ>
[  468.877589]  dump_stack+0x244/0x39d
[  468.881218]  ? dump_stack_print_info.cold.1+0x20/0x20
[  468.886418]  warn_alloc.cold.116+0xb7/0x1bd
[  468.890735]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  468.895580]  ? lock_downgrade+0x900/0x900
[  468.899733]  ? trace_hardirqs_off+0xb8/0x310
[  468.904144]  ? trace_hardirqs_off+0xb8/0x310
[  468.908553]  __alloc_pages_slowpath+0x26e8/0x2e10
[  468.913417]  ? warn_alloc+0x120/0x120
[  468.917217]  ? print_usage_bug+0xc0/0xc0
[  468.921276]  ? warn_alloc+0x120/0x120
[  468.925072]  ? warn_alloc+0x120/0x120
[  468.928867]  ? print_usage_bug+0xc0/0xc0
[  468.932921]  ? kvm_clock_read+0x18/0x30
[  468.936895]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  468.941907]  ? print_usage_bug+0xc0/0xc0
[  468.945961]  ? __lock_acquire+0x62f/0x4c20
[  468.950192]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  468.956493]  ? should_fail+0x22d/0xd01
[  468.960372]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  468.965645]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  468.970740]  ? __lock_acquire+0x62f/0x4c20
[  468.974978]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  468.980077]  ? __lock_acquire+0x62f/0x4c20
[  468.984306]  ? should_fail+0x22d/0xd01
[  468.988183]  ? rcu_irq_exit+0x1a2/0x390
[  468.992168]  ? mark_held_locks+0x130/0x130
[  468.996414]  ? mark_held_locks+0x130/0x130
[  469.000647]  ? mark_held_locks+0xc7/0x130
[  469.004788]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  469.009799]  ? zap_class+0x640/0x640
[  469.013504]  ? print_usage_bug+0xc0/0xc0
[  469.017566]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  469.023100]  ? check_preemption_disabled+0x48/0x280
[  469.028115]  ? __lock_is_held+0xb5/0x140
[  469.032174]  __alloc_pages_nodemask+0xa80/0xde0
[  469.036838]  ? zap_class+0x640/0x640
[  469.040549]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  469.045569]  ? find_held_lock+0x36/0x1c0
[  469.049629]  ? ____cache_alloc_node+0x1c7/0x1e0
[  469.054292]  ? lock_downgrade+0x900/0x900
[  469.059182]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  469.064716]  cache_grow_begin+0xa5/0x8c0
[  469.068780]  ? do_raw_spin_unlock+0xa7/0x330
[  469.073190]  fallback_alloc+0x204/0x2e0
[  469.077162]  ____cache_alloc_node+0x1c7/0x1e0
[  469.081673]  kmem_cache_alloc_node+0xe3/0x730
[  469.086162]  ? ipv6_get_ifaddr+0x42e/0x620
[  469.090405]  __alloc_skb+0x119/0x770
[  469.094110]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  469.099384]  ? netdev_alloc_frag+0x1f0/0x1f0
[  469.103788]  ? lock_downgrade+0x900/0x900
[  469.107939]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  469.113470]  ? refcount_sub_and_test_checked+0x203/0x310
[  469.118921]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  469.124365]  ? addrconf_rs_timer+0x690/0x690
[  469.128779]  ndisc_alloc_skb+0x144/0x340
[  469.132842]  ndisc_send_rs+0x331/0x6e0
[  469.136731]  addrconf_rs_timer+0x314/0x690
[  469.140974]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  469.145215]  call_timer_fn+0x272/0x920
[  469.149094]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  469.153321]  ? process_timeout+0x40/0x40
[  469.158309]  ? mark_held_locks+0xc7/0x130
[  469.162451]  ? _raw_spin_unlock_irq+0x27/0x80
[  469.166936]  ? _raw_spin_unlock_irq+0x27/0x80
[  469.171422]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  469.175650]  ? lockdep_hardirqs_on+0x296/0x5b0
[  469.180228]  ? trace_hardirqs_on+0xbd/0x310
[  469.184543]  ? kasan_check_read+0x11/0x20
[  469.188687]  ? __run_timers+0x7da/0xc70
[  469.192661]  ? trace_hardirqs_off_caller+0x310/0x310
[  469.197768]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  469.202001]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  469.206227]  __run_timers+0x7e5/0xc70
[  469.210036]  ? timer_fixup_init+0x70/0x70
[  469.214180]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  469.219188]  ? zap_class+0x640/0x640
[  469.222898]  ? print_usage_bug+0xc0/0xc0
[  469.226953]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  469.232144]  ? find_held_lock+0x36/0x1c0
[  469.236206]  ? zap_class+0x640/0x640
[  469.239924]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  469.245454]  ? check_preemption_disabled+0x48/0x280
[  469.250472]  ? __lock_is_held+0xb5/0x140
[  469.254528]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  469.260588]  ? check_preemption_disabled+0x48/0x280
[  469.265604]  run_timer_softirq+0x52/0xb0
[  469.269661]  ? rcu_read_lock_sched_held+0x14f/0x180
[  469.274671]  __do_softirq+0x308/0xb7e
[  469.278474]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  469.282961]  ? lock_downgrade+0x900/0x900
[  469.287105]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  469.292208]  ? pvclock_read_flags+0x160/0x160
[  469.296703]  ? lapic_next_event+0x5a/0x90
[  469.300855]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  469.306388]  ? kvm_clock_read+0x18/0x30
[  469.310359]  ? kvm_sched_clock_read+0x9/0x20
[  469.314765]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  469.320415]  ? check_preemption_disabled+0x48/0x280
[  469.325437]  irq_exit+0x17f/0x1c0
[  469.328890]  smp_apic_timer_interrupt+0x1cb/0x760
[  469.333737]  ? smp_reschedule_interrupt+0x109/0x650
[  469.338750]  ? smp_call_function_single_interrupt+0x650/0x650
[  469.344625]  ? interrupt_entry+0xb5/0xc0
[  469.348689]  ? trace_hardirqs_off_caller+0xbb/0x310
[  469.353694]  ? trace_hardirqs_off_caller+0xbb/0x310
[  469.359141]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  469.363977]  ? trace_hardirqs_on_caller+0x310/0x310
[  469.368987]  ? trace_hardirqs_on_caller+0x310/0x310
[  469.373996]  ? task_prio+0x50/0x50
[  469.377533]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  469.383066]  ? check_preemption_disabled+0x48/0x280
[  469.388082]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  469.392925]  apic_timer_interrupt+0xf/0x20
[  469.397148]  </IRQ>
[  469.399379] RIP: 0010:dump_stack+0x358/0x39d
[  469.403787] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 5e fb f9 48 83 3d c9 81 8a 01 00 0f 84 63 fe ff ff e8 ce 10 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 10 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  469.422680] RSP: 0000:ffff8801c3f6e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  469.430384] RAX: ffff8801c33fa3c0 RBX: 1ffffffff12a3f76 RCX: 1ffff1003867f596
[  469.437642] RDX: 0000000000000000 RSI: ffffffff87c779f2 RDI: 0000000000000293
[  469.444915] RBP: ffff8801c3f6e290 R08: ffff8801c33facb0 R09: 0000000000000006
[  469.452194] R10: 0000000000000000 R11: ffff8801c33fa3c0 R12: 1ffff100387edc45
[  469.460452] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  469.467735]  ? dump_stack+0x34f/0x39d
[  469.471638]  ? dump_stack_print_info.cold.1+0x20/0x20
[  469.476828]  ? mark_held_locks+0x130/0x130
[  469.481057]  ? mark_held_locks+0x130/0x130
[  469.485289]  dump_header+0x27b/0xf72
[  469.489007]  ? pagefault_out_of_memory+0x197/0x197
[  469.493935]  ? __lock_acquire+0x62f/0x4c20
[  469.498181]  ? percpu_ref_get_many+0x240/0x240
[  469.502758]  ? print_usage_bug+0xc0/0xc0
[  469.506821]  ? zap_class+0x640/0x640
[  469.510533]  ? print_usage_bug+0xc0/0xc0
[  469.514585]  ? print_usage_bug+0xc0/0xc0
[  469.518650]  ? zap_class+0x640/0x640
[  469.522364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  469.527900]  ? find_held_lock+0x36/0x1c0
[  469.531974]  ? mark_held_locks+0xc7/0x130
[  469.536118]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  469.541214]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  469.546314]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  469.550894]  ? trace_hardirqs_on+0xbd/0x310
[  469.556027]  ? kasan_check_read+0x11/0x20
[  469.560165]  ? ___ratelimit+0x3b4/0x672
[  469.564155]  ? trace_hardirqs_off_caller+0x310/0x310
[  469.569254]  ? trace_hardirqs_on+0x310/0x310
[  469.573661]  ? lock_downgrade+0x900/0x900
[  469.577804]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  469.583008]  ? ___ratelimit+0x3b9/0x672
[  469.586979]  ? idr_get_free+0xf70/0xf70
[  469.590946]  ? find_held_lock+0x36/0x1c0
[  469.595012]  oom_kill_process.cold.27+0x10/0x903
[  469.599765]  ? zap_class+0x640/0x640
[  469.603479]  ? check_preemption_disabled+0x48/0x280
[  469.608492]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  469.613416]  ? kasan_check_read+0x11/0x20
[  469.617554]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  469.622830]  ? oom_evaluate_task+0x540/0x540
[  469.627240]  ? find_held_lock+0x36/0x1c0
[  469.631304]  ? out_of_memory+0x974/0x1430
[  469.635450]  ? lock_downgrade+0x900/0x900
[  469.639592]  ? check_preemption_disabled+0x48/0x280
[  469.644603]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  469.649533]  ? kasan_check_read+0x11/0x20
[  469.653670]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  469.659922]  ? rcu_softirq_qs+0x20/0x20
[  469.663892]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  469.669422]  ? oom_evaluate_task+0x302/0x540
[  469.673830]  out_of_memory+0xa84/0x1430
[  469.677806]  ? oom_killer_disable+0x3a0/0x3a0
[  469.682299]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  469.687229]  ? __ww_mutex_check_waiters+0x160/0x160
[  469.692271]  __alloc_pages_slowpath+0x2354/0x2e10
[  469.697131]  ? warn_alloc+0x120/0x120
[  469.700929]  ? mark_held_locks+0x130/0x130
[  469.705161]  ? find_get_entry+0xaae/0x1120
[  469.709399]  ? filemap_map_pages+0x1a20/0x1a20
[  469.713978]  ? zap_class+0x640/0x640
[  469.717689]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  469.723234]  ? check_preemption_disabled+0x48/0x280
[  469.728242]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  469.733773]  ? should_fail+0x22d/0xd01
[  469.737656]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  469.742757]  ? zap_class+0x640/0x640
[  469.746486]  ? __lock_is_held+0xb5/0x140
[  469.750548]  ? mark_held_locks+0x130/0x130
[  469.754778]  ? lock_release+0xa00/0xa00
[  469.759916]  ? perf_trace_sched_process_exec+0x860/0x860
[  469.765525]  ? xa_load+0x2ba/0x460
[  469.769065]  ? lock_downgrade+0x900/0x900
[  469.773215]  ? __might_sleep+0x95/0x190
[  469.777193]  __alloc_pages_nodemask+0xa80/0xde0
[  469.781867]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  469.786895]  ? __page_cache_alloc+0x191/0x5c0
[  469.791382]  ? xa_load+0x2e1/0x460
[  469.794919]  ? xa_clear_mark+0x40/0x40
[  469.798804]  ? zap_class+0x640/0x640
[  469.802518]  ? zap_class+0x640/0x640
[  469.806230]  ? zap_class+0x640/0x640
[  469.809937]  ? __do_page_cache_readahead+0x663/0x810
[  469.815045]  ? find_held_lock+0x36/0x1c0
[  469.819110]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  469.824645]  alloc_pages_current+0x173/0x350
[  469.829052]  __page_cache_alloc+0x38c/0x5c0
[  469.833364]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  469.838297]  ? kasan_check_read+0x11/0x20
[  469.842446]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  469.847721]  ? generic_perform_write+0x6a0/0x6a0
[  469.852472]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  469.858786]  ? check_preemption_disabled+0x48/0x280
[  469.863801]  filemap_fault+0x1595/0x25f0
[  469.867870]  ? __lock_page_or_retry+0xa00/0xa00
[  469.872530]  ? mark_held_locks+0x130/0x130
[  469.876777]  ? filemap_map_pages+0xd6b/0x1a20
[  469.881266]  ? lock_downgrade+0x900/0x900
[  469.885411]  ? check_preemption_disabled+0x48/0x280
[  469.890422]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  469.895342]  ? kasan_check_read+0x11/0x20
[  469.899504]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  469.904778]  ? rcu_softirq_qs+0x20/0x20
[  469.908758]  ? filemap_map_pages+0xd92/0x1a20
[  469.913259]  ? find_get_entries_tag+0x1400/0x1400
[  469.918098]  ? debug_object_destroy+0x2b0/0x2b0
[  469.922766]  ? lock_pi_update_atomic+0x150/0x150
[  469.927932]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  469.933482]  ? lock_acquire+0x1ed/0x520
[  469.937447]  ? ext4_filemap_fault+0x7a/0xad
[  469.941767]  ? lock_release+0xa00/0xa00
[  469.945737]  ? perf_trace_sched_process_exec+0x860/0x860
[  469.951180]  ? print_usage_bug+0xc0/0xc0
[  469.955693]  ? print_usage_bug+0xc0/0xc0
[  469.959762]  ? down_read+0x8d/0x120
[  469.963377]  ? ext4_filemap_fault+0x7a/0xad
[  469.967699]  ? __down_interruptible+0x700/0x700
[  469.972465]  ext4_filemap_fault+0x82/0xad
[  469.976611]  __do_fault+0x100/0x6b0
[  469.980233]  ? pmd_devmap_trans_unstable+0x220/0x220
[  469.985331]  ? mark_held_locks+0x130/0x130
[  469.989556]  ? mark_held_locks+0x130/0x130
[  469.993783]  ? do_raw_spin_trylock+0x270/0x270
[  469.998363]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  470.003900]  __handle_mm_fault+0x3ea0/0x5be0
[  470.008298]  ? perf_trace_lock+0x7a0/0x7a0
[  470.012542]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  470.017393]  ? __switch_to_asm+0x34/0x70
[  470.021450]  ? __switch_to_asm+0x34/0x70
[  470.025512]  ? zap_class+0x640/0x640
[  470.029221]  ? zap_class+0x640/0x640
[  470.032934]  ? __x64_sys_futex+0x53e/0x6a0
[  470.037166]  ? find_held_lock+0x36/0x1c0
[  470.041237]  ? handle_mm_fault+0x42a/0xc70
[  470.045470]  ? lock_downgrade+0x900/0x900
[  470.049613]  ? check_preemption_disabled+0x48/0x280
[  470.054627]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  470.060322]  ? kasan_check_read+0x11/0x20
[  470.064468]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  470.069738]  ? rcu_softirq_qs+0x20/0x20
[  470.073707]  ? trace_hardirqs_off_caller+0x310/0x310
[  470.078805]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  470.084339]  ? check_preemption_disabled+0x48/0x280
[  470.089359]  handle_mm_fault+0x54f/0xc70
[  470.093419]  ? __handle_mm_fault+0x5be0/0x5be0
[  470.097998]  ? find_vma+0x34/0x190
[  470.101539]  __do_page_fault+0x5e8/0xe60
[  470.105594]  ? trace_hardirqs_off+0xb8/0x310
[  470.110003]  do_page_fault+0xf2/0x7e0
[  470.113814]  ? vmalloc_sync_all+0x30/0x30
[  470.117954]  ? error_entry+0x70/0xd0
[  470.121662]  ? trace_hardirqs_off_caller+0xbb/0x310
[  470.126688]  ? trace_hardirqs_on_caller+0xc0/0x310
[  470.131614]  ? syscall_return_slowpath+0x5e0/0x5e0
[  470.136538]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  470.141375]  ? trace_hardirqs_on_caller+0x310/0x310
[  470.146380]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  470.151835]  ? prepare_exit_to_usermode+0x291/0x3b0
[  470.157805]  ? page_fault+0x8/0x30
[  470.161341]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  470.166179]  ? page_fault+0x8/0x30
[  470.169725]  page_fault+0x1e/0x30
[  470.173168] RIP: 0033:0x45ddf3
[  470.176377] Code: Bad RIP value.
[  470.179732] RSP: 002b:000000c42001eea0 EFLAGS: 00010206
[  470.185089] RAX: ffffffffffffff92 RBX: 000000003b989647 RCX: 000000000045ddf3
[  470.192346] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  470.199605] RBP: 000000c42001eee8 R08: 0000000000000000 R09: 0000000000000000
[  470.206882] R10: 000000c42001eed8 R11: 0000000000000206 R12: 0000000000000001
[  470.214146] R13: 0000000000000000 R14: 000000000045b6a0 R15: 0000000000000000
[  470.221445] warn_alloc_show_mem: 1 callbacks suppressed
[  470.221454] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #81
[  470.221456] Mem-Info:
[  470.221487] active_anon:54141 inactive_anon:292 isolated_anon:0
[  470.221487]  active_file:12 inactive_file:13 isolated_file:0
[  470.221487]  unevictable:0 dirty:0 writeback:0 unstable:0
[  470.221487]  slab_reclaimable:9274 slab_unreclaimable:1452059
[  470.221487]  mapped:49154 shmem:341 pagetables:639 bounce:0
[  470.221487]  free:13705 free_pcp:178 free_cma:0
[  470.226824] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  470.233571] Node 0 active_anon:216564kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:1364kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  470.235961] Call Trace:
[  470.269596] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  470.278951]  dump_stack+0x244/0x39d
[  470.306877] lowmem_reserve[]: 0 2818 6321 6321
[  470.309458]  ? dump_stack_print_info.cold.1+0x20/0x20
[  470.335532] Node 0 DMA32 free:24956kB min:30052kB low:37564kB high:45076kB active_anon:144kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  470.339157]  warn_alloc.cold.116+0xb7/0x1bd
[  470.343700] lowmem_reserve[]: 0 0 3503 3503
[  470.348888]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  470.377304] Node 0 Normal free:13956kB min:37364kB low:46704kB high:56044kB active_anon:216420kB inactive_anon:1168kB active_file:48kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6784kB pagetables:2556kB bounce:0kB free_pcp:464kB local_pcp:216kB free_cma:0kB
[  470.381624]  ? lock_downgrade+0x900/0x900
[  470.385914] lowmem_reserve[]: 0 0 0 0
[  470.390751]  ? trace_hardirqs_off+0xb8/0x310
[  470.419691] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  470.423834]  ? trace_hardirqs_off+0xb8/0x310
[  470.427599] Node 0 DMA32: 3*4kB (M) 2*8kB (UM) 2*16kB (M) 4*32kB (M) 5*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (M) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 24956kB
[  470.432006]  __alloc_pages_slowpath+0x26e8/0x2e10
[  470.445495] Node 0 Normal: 837*4kB (UME) 486*8kB (UME) 202*16kB (UME) 69*32kB (UME) 20*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13956kB
[  470.449914]  ? warn_alloc+0x120/0x120
[  470.466113] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  470.470939]  ? warn_alloc+0x120/0x120
[  470.485122] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  470.485130] 366 total pagecache pages
[  470.488916]  ? warn_alloc+0x120/0x120
[  470.497725] 0 pages in swap cache
[  470.501502]  ? trace_hardirqs_off+0xb8/0x310
[  470.510047] Swap cache stats: add 0, delete 0, find 0/0
[  470.513829]  ? print_usage_bug+0xc0/0xc0
[  470.517602] Free swap  = 0kB
[  470.521041]  ? print_usage_bug+0xc0/0xc0
[  470.525419] Total swap = 0kB
[  470.530769]  ? __lock_acquire+0x62f/0x4c20
[  470.534798] 1965979 pages RAM
[  470.537806]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  470.541836] 0 pages HighMem/MovableOnly
[  470.544836]  ? should_fail+0x22d/0xd01
[  470.549040] 342854 pages reserved
[  470.552133]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  470.558376] 0 pages cma reserved
[  470.558455] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  470.562344]  ? __lock_acquire+0x62f/0x4c20
[  470.562360]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  470.562375]  ? __lock_acquire+0x62f/0x4c20
[  470.566295] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  470.569677]  ? should_fail+0x22d/0xd01
[  470.574753] syz-fuzzer cpuset=/ mems_allowed=0
[  470.578111]  ? mark_held_locks+0x130/0x130
[  470.620940]  ? mark_held_locks+0x130/0x130
[  470.625180]  ? zap_class+0x640/0x640
[  470.628886]  ? ret_from_fork+0x3a/0x50
[  470.632765]  ? __lock_acquire+0x62f/0x4c20
[  470.636996]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  470.642528]  ? check_preemption_disabled+0x48/0x280
[  470.647545]  ? __lock_is_held+0xb5/0x140
[  470.651612]  __alloc_pages_nodemask+0xa80/0xde0
[  470.656606]  ? zap_class+0x640/0x640
[  470.660323]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  470.665351]  ? find_held_lock+0x36/0x1c0
[  470.669415]  ? ____cache_alloc_node+0x1c7/0x1e0
[  470.674080]  ? lock_downgrade+0x900/0x900
[  470.678232]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  470.683771]  cache_grow_begin+0xa5/0x8c0
[  470.687822]  ? do_raw_spin_unlock+0xa7/0x330
[  470.692227]  fallback_alloc+0x204/0x2e0
[  470.696205]  ____cache_alloc_node+0x1c7/0x1e0
[  470.700711]  kmem_cache_alloc_node+0xe3/0x730
[  470.705199]  ? mark_held_locks+0xc7/0x130
[  470.709361]  __alloc_skb+0x119/0x770
[  470.713078]  ? netdev_alloc_frag+0x1f0/0x1f0
[  470.717481]  ? do_raw_spin_trylock+0x270/0x270
[  470.722061]  ? kmem_cache_alloc_trace+0x353/0x750
[  470.726899]  ? queue_work_on+0x12c/0x1e0
[  470.730958]  ? switchdev_port_obj_del+0xdc/0x440
[  470.735709]  ? switchdev_trans_item_enqueue+0x260/0x260
[  470.741068]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  470.746083]  __br_mdb_notify+0x4ff/0x15d0
[  470.750223]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  470.755665]  ? __br_mdb_add+0x7f0/0x7f0
[  470.760071]  ? mark_held_locks+0x130/0x130
[  470.764303]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  470.769404]  ? debug_object_assert_init+0x368/0x4b0
[  470.774419]  ? debug_object_init_on_stack+0x20/0x20
[  470.779432]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  470.784967]  br_mdb_notify+0x310/0x410
[  470.788851]  ? br_mdb_dump+0x27b0/0x27b0
[  470.792924]  br_multicast_del_pg+0x3df/0x790
[  470.797333]  ? br_mdb_ip_get+0x940/0x940
[  470.801384]  ? rwlock_bug.part.2+0x90/0x90
[  470.805653]  ? __lock_is_held+0xb5/0x140
[  470.809804]  br_multicast_port_group_expired+0x189/0x1e0
[  470.815251]  call_timer_fn+0x272/0x920
[  470.819128]  ? br_multicast_del_pg+0x790/0x790
[  470.823702]  ? process_timeout+0x40/0x40
[  470.827767]  ? __run_timers+0x7da/0xc70
[  470.831732]  ? _raw_spin_unlock_irq+0x27/0x80
[  470.836221]  ? _raw_spin_unlock_irq+0x27/0x80
[  470.840706]  ? br_multicast_del_pg+0x790/0x790
[  470.845285]  ? lockdep_hardirqs_on+0x296/0x5b0
[  470.849860]  ? trace_hardirqs_on+0xbd/0x310
[  470.854283]  ? kasan_check_read+0x11/0x20
[  470.858766]  ? __run_timers+0x7da/0xc70
[  470.862737]  ? trace_hardirqs_off_caller+0x310/0x310
[  470.867836]  ? br_multicast_del_pg+0x790/0x790
[  470.872421]  ? br_multicast_del_pg+0x790/0x790
[  470.876991]  __run_timers+0x7e5/0xc70
[  470.880796]  ? timer_fixup_init+0x70/0x70
[  470.884939]  ? _raw_spin_unlock_irq+0x27/0x80
[  470.889426]  ? _raw_spin_unlock_irq+0x27/0x80
[  470.893914]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  470.898490]  ? trace_hardirqs_on+0xbd/0x310
[  470.902803]  ? kasan_check_read+0x11/0x20
[  470.906949]  ? finish_task_switch+0x1f4/0x910
[  470.911437]  ? trace_hardirqs_off_caller+0x310/0x310
[  470.916529]  ? compat_start_thread+0x80/0x80
[  470.920944]  ? pvclock_read_flags+0x160/0x160
[  470.925430]  ? __switch_to_asm+0x34/0x70
[  470.929513]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  470.935048]  ? check_preemption_disabled+0x48/0x280
[  470.940066]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  470.945598]  ? rcu_pm_notify+0xc0/0xc0
[  470.949496]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  470.955368]  ? check_preemption_disabled+0x48/0x280
[  470.960376]  run_timer_softirq+0x52/0xb0
[  470.964432]  ? rcu_read_lock_sched_held+0x14f/0x180
[  470.969440]  __do_softirq+0x308/0xb7e
[  470.973243]  ? trace_hardirqs_on_caller+0xc0/0x310
[  470.978166]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  470.983262]  ? trace_hardirqs_on+0x310/0x310
[  470.987666]  ? schedule+0x108/0x460
[  470.991301]  ? trace_hardirqs_off+0xb8/0x310
[  470.995700]  ? smpboot_thread_fn+0x68b/0xa00
[  471.000103]  ? trace_hardirqs_on+0x310/0x310
[  471.004501]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  471.010061]  ? check_preemption_disabled+0x48/0x280
[  471.015075]  ? takeover_tasklets+0xa90/0xa90
[  471.019474]  run_ksoftirqd+0x5e/0x100
[  471.023265]  smpboot_thread_fn+0x68b/0xa00
[  471.027494]  ? sort_range+0x30/0x30
[  471.031111]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  471.036204]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  471.041736]  ? __kthread_parkme+0xfb/0x1a0
[  471.045980]  ? sort_range+0x30/0x30
[  471.049630]  kthread+0x35a/0x440
[  471.052993]  ? kthread_stop+0x900/0x900
[  471.057298]  ret_from_fork+0x3a/0x50
[  471.061022] CPU: 1 PID: 5963 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #81
[  471.061155] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  471.067945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  471.078227] ksoftirqd/0 cpuset=/ mems_allowed=0
[  471.087553] Call Trace:
[  471.087561]  <IRQ>
[  471.096910]  dump_stack+0x244/0x39d
[  471.100531]  ? dump_stack_print_info.cold.1+0x20/0x20
[  471.105729]  warn_alloc.cold.116+0xb7/0x1bd
[  471.110046]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  471.114882]  ? lock_downgrade+0x900/0x900
[  471.119034]  ? trace_hardirqs_off+0xb8/0x310
[  471.123443]  ? trace_hardirqs_off+0xb8/0x310
[  471.127872]  __alloc_pages_slowpath+0x26e8/0x2e10
[  471.132735]  ? warn_alloc+0x120/0x120
[  471.136541]  ? print_usage_bug+0xc0/0xc0
[  471.140610]  ? warn_alloc+0x120/0x120
[  471.144442]  ? warn_alloc+0x120/0x120
[  471.148236]  ? print_usage_bug+0xc0/0xc0
[  471.152310]  ? print_usage_bug+0xc0/0xc0
[  471.157302]  ? __lock_acquire+0x62f/0x4c20
[  471.161535]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  471.167066]  ? should_fail+0x22d/0xd01
[  471.170956]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  471.176055]  ? __lock_acquire+0x62f/0x4c20
[  471.180299]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  471.185395]  ? __lock_acquire+0x62f/0x4c20
[  471.189627]  ? should_fail+0x22d/0xd01
[  471.193506]  ? find_held_lock+0x36/0x1c0
[  471.197570]  ? mark_held_locks+0x130/0x130
[  471.201808]  ? mark_held_locks+0x130/0x130
[  471.206033]  ? zap_class+0x640/0x640
[  471.209738]  ? zap_class+0x640/0x640
[  471.213450]  ? print_usage_bug+0xc0/0xc0
[  471.217503]  ? do_raw_spin_unlock+0xa7/0x330
[  471.221905]  ? zap_class+0x640/0x640
[  471.225618]  ? print_usage_bug+0xc0/0xc0
[  471.229674]  ? wq_watchdog_touch+0x9c/0xfe
[  471.233905]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  471.239437]  ? check_preemption_disabled+0x48/0x280
[  471.244453]  ? __lock_is_held+0xb5/0x140
[  471.248513]  __alloc_pages_nodemask+0xa80/0xde0
[  471.253176]  ? zap_class+0x640/0x640
[  471.257652]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  471.262674]  ? find_held_lock+0x36/0x1c0
[  471.266737]  ? ____cache_alloc_node+0x1c7/0x1e0
[  471.271402]  ? lock_downgrade+0x900/0x900
[  471.275548]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  471.281085]  cache_grow_begin+0xa5/0x8c0
[  471.285143]  ? do_raw_spin_unlock+0xa7/0x330
[  471.289555]  fallback_alloc+0x204/0x2e0
[  471.293527]  ____cache_alloc_node+0x1c7/0x1e0
[  471.298021]  kmem_cache_alloc_node+0xe3/0x730
[  471.302512]  ? ipv6_get_ifaddr+0x42e/0x620
[  471.306753]  __alloc_skb+0x119/0x770
[  471.310465]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  471.315746]  ? netdev_alloc_frag+0x1f0/0x1f0
[  471.320146]  ? lock_downgrade+0x900/0x900
[  471.324294]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  471.329828]  ? refcount_sub_and_test_checked+0x203/0x310
[  471.335275]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  471.340736]  ? addrconf_rs_timer+0x690/0x690
[  471.345144]  ndisc_alloc_skb+0x144/0x340
[  471.349203]  ndisc_send_rs+0x331/0x6e0
[  471.353088]  addrconf_rs_timer+0x314/0x690
[  471.358011]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  471.362249]  call_timer_fn+0x272/0x920
[  471.366132]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  471.370359]  ? process_timeout+0x40/0x40
[  471.374421]  ? mark_held_locks+0xc7/0x130
[  471.378560]  ? _raw_spin_unlock_irq+0x27/0x80
[  471.383051]  ? _raw_spin_unlock_irq+0x27/0x80
[  471.387538]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  471.391769]  ? lockdep_hardirqs_on+0x296/0x5b0
[  471.396349]  ? trace_hardirqs_on+0xbd/0x310
[  471.400662]  ? kasan_check_read+0x11/0x20
[  471.404800]  ? __run_timers+0x7da/0xc70
[  471.408769]  ? trace_hardirqs_off_caller+0x310/0x310
[  471.413871]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  471.418109]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  471.422337]  __run_timers+0x7e5/0xc70
[  471.426143]  ? timer_fixup_init+0x70/0x70
[  471.430289]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  471.435298]  ? zap_class+0x640/0x640
[  471.439009]  ? print_usage_bug+0xc0/0xc0
[  471.443066]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  471.448256]  ? find_held_lock+0x36/0x1c0
[  471.452316]  ? zap_class+0x640/0x640
[  471.456767]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  471.462384]  ? check_preemption_disabled+0x48/0x280
[  471.467418]  ? __lock_is_held+0xb5/0x140
[  471.471476]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  471.477005]  ? check_preemption_disabled+0x48/0x280
[  471.482018]  run_timer_softirq+0x52/0xb0
[  471.486075]  ? rcu_read_lock_sched_held+0x14f/0x180
[  471.491086]  __do_softirq+0x308/0xb7e
[  471.494883]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  471.499372]  ? lock_downgrade+0x900/0x900
[  471.503519]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  471.508622]  ? pvclock_read_flags+0x160/0x160
[  471.513115]  ? lapic_next_event+0x5a/0x90
[  471.517257]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  471.522811]  ? kvm_clock_read+0x18/0x30
[  471.526779]  ? kvm_sched_clock_read+0x9/0x20
[  471.531179]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  471.536710]  ? check_preemption_disabled+0x48/0x280
[  471.541727]  irq_exit+0x17f/0x1c0
[  471.545176]  smp_apic_timer_interrupt+0x1cb/0x760
[  471.550014]  ? smp_reschedule_interrupt+0x109/0x650
[  471.555890]  ? smp_call_function_single_interrupt+0x650/0x650
[  471.561782]  ? interrupt_entry+0xb5/0xc0
[  471.565836]  ? trace_hardirqs_off_caller+0xbb/0x310
[  471.570846]  ? trace_hardirqs_off_caller+0xbb/0x310
[  471.575876]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  471.580717]  ? trace_hardirqs_on_caller+0x310/0x310
[  471.585726]  ? trace_hardirqs_on_caller+0x310/0x310
[  471.590733]  ? task_prio+0x50/0x50
[  471.594269]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  471.599799]  ? check_preemption_disabled+0x48/0x280
[  471.604817]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  471.609665]  apic_timer_interrupt+0xf/0x20
[  471.613891]  </IRQ>