3613]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  206.749165]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  206.754705]  ? check_preemption_disabled+0x48/0x280
[  206.759770]  ? __lock_is_held+0xb5/0x140
[  206.763844]  __alloc_pages_nodemask+0xad8/0xea0
[  206.768531]  ? zap_class+0x640/0x640
[  206.772247]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  206.777273]  ? find_held_lock+0x36/0x1c0
[  206.781347]  ? ____cache_alloc_node+0x1c7/0x1e0
[  206.786021]  ? lock_downgrade+0x900/0x900
[  206.790179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  206.795721]  cache_grow_begin+0xa5/0x8c0
[  206.799782]  ? do_raw_spin_unlock+0xa7/0x330
[  206.804200]  fallback_alloc+0x204/0x2e0
[  206.808214]  ____cache_alloc_node+0x1c7/0x1e0
[  206.812713]  kmem_cache_alloc_node+0xe3/0x730
[  206.817214]  ? lockdep_hardirqs_on+0x296/0x5b0
[  206.821806]  __alloc_skb+0x119/0x770
[  206.825521]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  206.830895]  ? netdev_alloc_frag+0x1f0/0x1f0
[  206.835312]  ? vprintk_default+0x28/0x30
[  206.839381]  ? vprintk_func+0x85/0x181
[  206.843271]  ? printk+0xa7/0xcf
[  206.846564]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  206.851328]  new_skb+0x26/0x1c0
[  206.854609]  aoecmd_cfg+0x279/0x7f0
[  206.858236]  ? find_held_lock+0x36/0x1c0
[  206.862302]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  206.866630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  206.872191]  ? __lock_is_held+0xb5/0x140
[  206.876263]  discover_timer+0x50/0x60
[  206.880062]  call_timer_fn+0x272/0x920
[  206.883978]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  206.888935]  ? process_timeout+0x40/0x40
[  206.893006]  ? mark_held_locks+0xc7/0x130
[  206.897184]  ? _raw_spin_unlock_irq+0x27/0x80
[  206.901681]  ? _raw_spin_unlock_irq+0x27/0x80
[  206.906174]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  206.911110]  ? lockdep_hardirqs_on+0x296/0x5b0
[  206.915699]  ? trace_hardirqs_on+0xbd/0x310
[  206.920023]  ? kasan_check_read+0x11/0x20
[  206.924173]  ? __run_timers+0x7da/0xc70
[  206.928148]  ? trace_hardirqs_off_caller+0x310/0x310
[  206.933266]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  206.938112]  __run_timers+0x7e5/0xc70
[  206.941925]  ? timer_fixup_init+0x70/0x70
[  206.946079]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  206.951100]  ? zap_class+0x640/0x640
[  206.954817]  ? print_usage_bug+0xc0/0xc0
[  206.958889]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  206.964089]  ? find_held_lock+0x36/0x1c0
[  206.968160]  ? zap_class+0x640/0x640
[  206.971887]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  206.977544]  ? check_preemption_disabled+0x48/0x280
[  206.982597]  ? __lock_is_held+0xb5/0x140
[  206.986676]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  206.992213]  ? check_preemption_disabled+0x48/0x280
[  206.997232]  run_timer_softirq+0x52/0xb0
[  207.001298]  ? rcu_read_lock_sched_held+0x14f/0x180
[  207.006348]  __do_softirq+0x308/0xb7e
[  207.010158]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  207.014652]  ? lock_downgrade+0x900/0x900
[  207.018803]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  207.023917]  ? pvclock_read_flags+0x160/0x160
[  207.028427]  ? lapic_next_event+0x5a/0x90
[  207.032579]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.038124]  ? kvm_clock_read+0x18/0x30
[  207.042097]  ? kvm_sched_clock_read+0x9/0x20
[  207.046509]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  207.052048]  ? check_preemption_disabled+0x48/0x280
[  207.057072]  irq_exit+0x17f/0x1c0
[  207.060544]  smp_apic_timer_interrupt+0x1cb/0x760
[  207.065389]  ? smp_call_function_single_interrupt+0x159/0x650
[  207.071298]  ? smp_call_function_single_interrupt+0x650/0x650
[  207.077208]  ? interrupt_entry+0xb5/0xc0
[  207.081286]  ? trace_hardirqs_off_caller+0xbb/0x310
[  207.086304]  ? trace_hardirqs_off_caller+0xbb/0x310
[  207.091326]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  207.096173]  ? trace_hardirqs_on_caller+0x310/0x310
[  207.101198]  ? trace_hardirqs_on_caller+0x310/0x310
[  207.106215]  ? task_prio+0x50/0x50
[  207.109759]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.115299]  ? check_preemption_disabled+0x48/0x280
[  207.120371]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  207.125231]  apic_timer_interrupt+0xf/0x20
[  207.129463]  </IRQ>
[  207.131700] RIP: 0010:dump_stack+0x358/0x39d
[  207.136114] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  207.155017] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  207.162727] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  207.169988] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  207.177256] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  207.184521] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  207.191786] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  207.199096]  ? dump_stack+0x34f/0x39d
[  207.202910]  ? dump_stack_print_info.cold.1+0x20/0x20
[  207.208122]  ? mark_held_locks+0x130/0x130
[  207.212355]  ? mark_held_locks+0x130/0x130
[  207.216600]  dump_header+0x27b/0xf72
[  207.220330]  ? pagefault_out_of_memory+0x197/0x197
[  207.225268]  ? __lock_acquire+0x62f/0x4c20
[  207.229506]  ? percpu_ref_get_many+0x240/0x240
[  207.234094]  ? print_usage_bug+0xc0/0xc0
[  207.238164]  ? zap_class+0x640/0x640
[  207.241933]  ? print_usage_bug+0xc0/0xc0
[  207.245993]  ? print_usage_bug+0xc0/0xc0
[  207.250060]  ? zap_class+0x640/0x640
[  207.253777]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.259322]  ? find_held_lock+0x36/0x1c0
[  207.263395]  ? mark_held_locks+0xc7/0x130
[  207.267547]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  207.272653]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  207.277757]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  207.282354]  ? trace_hardirqs_on+0xbd/0x310
[  207.286678]  ? kasan_check_read+0x11/0x20
[  207.290827]  ? ___ratelimit+0x3b4/0x672
[  207.294806]  ? trace_hardirqs_off_caller+0x310/0x310
[  207.299920]  ? trace_hardirqs_on+0x310/0x310
[  207.304343]  ? lock_downgrade+0x900/0x900
[  207.308491]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  207.313599]  ? ___ratelimit+0x3b9/0x672
[  207.317578]  ? idr_get_free+0xf70/0xf70
[  207.321553]  ? find_held_lock+0x36/0x1c0
[  207.325638]  oom_kill_process.cold.27+0x10/0x903
[  207.330398]  ? zap_class+0x640/0x640
[  207.334132]  ? check_preemption_disabled+0x48/0x280
[  207.339154]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  207.344086]  ? kasan_check_read+0x11/0x20
[  207.348232]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  207.353512]  ? oom_evaluate_task+0x540/0x540
[  207.357928]  ? find_held_lock+0x36/0x1c0
[  207.361999]  ? out_of_memory+0x974/0x1430
[  207.366152]  ? lock_downgrade+0x900/0x900
[  207.370302]  ? check_preemption_disabled+0x48/0x280
[  207.375335]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  207.380261]  ? kasan_check_read+0x11/0x20
[  207.384423]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  207.389732]  ? rcu_softirq_qs+0x20/0x20
[  207.393717]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  207.399257]  ? oom_evaluate_task+0x302/0x540
[  207.403672]  out_of_memory+0xa84/0x1430
[  207.407659]  ? oom_killer_disable+0x3a0/0x3a0
[  207.412159]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  207.417096]  ? __ww_mutex_check_waiters+0x160/0x160
[  207.422122]  __alloc_pages_slowpath+0x232c/0x2de0
[  207.426993]  ? warn_alloc+0x120/0x120
[  207.430811]  ? mark_held_locks+0x130/0x130
[  207.435052]  ? find_get_entry+0xaae/0x1120
[  207.439308]  ? filemap_map_pages+0x1a20/0x1a20
[  207.443899]  ? zap_class+0x640/0x640
[  207.447619]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.453163]  ? check_preemption_disabled+0x48/0x280
[  207.458181]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  207.463724]  ? should_fail+0x22d/0xd01
[  207.467621]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  207.472730]  ? zap_class+0x640/0x640
[  207.476480]  ? __lock_is_held+0xb5/0x140
[  207.480565]  ? mark_held_locks+0x130/0x130
[  207.484816]  ? lock_release+0xa00/0xa00
[  207.488792]  ? perf_trace_sched_process_exec+0x860/0x860
[  207.494247]  ? xa_load+0x2ba/0x460
[  207.497788]  ? lock_downgrade+0x900/0x900
[  207.501944]  ? __might_sleep+0x95/0x190
[  207.505987]  __alloc_pages_nodemask+0xad8/0xea0
[  207.510679]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  207.515713]  ? __page_cache_alloc+0x191/0x5c0
[  207.520207]  ? xa_load+0x2e1/0x460
[  207.523753]  ? xa_clear_mark+0x40/0x40
[  207.527647]  ? zap_class+0x640/0x640
[  207.531368]  ? zap_class+0x640/0x640
[  207.535085]  ? zap_class+0x640/0x640
[  207.538803]  ? __do_page_cache_readahead+0x663/0x810
[  207.543916]  ? find_held_lock+0x36/0x1c0
[  207.547984]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  207.553531]  alloc_pages_current+0x173/0x350
[  207.557952]  __page_cache_alloc+0x38c/0x5c0
[  207.562271]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  207.567217]  ? kasan_check_read+0x11/0x20
[  207.571381]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  207.576690]  ? generic_perform_write+0x6a0/0x6a0
[  207.581456]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  207.586994]  ? check_preemption_disabled+0x48/0x280
[  207.592038]  filemap_fault+0x1595/0x25f0
[  207.596113]  ? __lock_page_or_retry+0xa00/0xa00
[  207.600791]  ? mark_held_locks+0x130/0x130
[  207.605035]  ? filemap_map_pages+0xd6b/0x1a20
[  207.609533]  ? lock_downgrade+0x900/0x900
[  207.613682]  ? check_preemption_disabled+0x48/0x280
[  207.618702]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  207.623633]  ? kasan_check_read+0x11/0x20
[  207.627778]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  207.633056]  ? rcu_softirq_qs+0x20/0x20
[  207.637043]  ? filemap_map_pages+0xd92/0x1a20
[  207.641551]  ? find_get_entries_tag+0x1400/0x1400
[  207.646401]  ? debug_object_destroy+0x2b0/0x2b0
[  207.651077]  ? lock_pi_update_atomic+0x150/0x150
[  207.655835]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  207.661400]  ? lock_acquire+0x1ed/0x520
[  207.665382]  ? ext4_filemap_fault+0x7a/0xad
[  207.669715]  ? lock_release+0xa00/0xa00
[  207.673687]  ? perf_trace_sched_process_exec+0x860/0x860
[  207.679139]  ? print_usage_bug+0xc0/0xc0
[  207.683218]  ? print_usage_bug+0xc0/0xc0
[  207.687313]  ? down_read+0x8d/0x120
[  207.690942]  ? ext4_filemap_fault+0x7a/0xad
[  207.695265]  ? __down_interruptible+0x700/0x700
[  207.699946]  ext4_filemap_fault+0x82/0xad
[  207.704108]  __do_fault+0x100/0x6b0
[  207.707734]  ? find_held_lock+0x36/0x1c0
[  207.711801]  ? pmd_devmap_trans_unstable+0x220/0x220
[  207.716910]  ? mark_held_locks+0x130/0x130
[  207.721150]  ? mark_held_locks+0x130/0x130
[  207.725392]  ? _raw_spin_unlock_irq+0x27/0x80
[  207.729895]  ? _raw_spin_unlock_irq+0x27/0x80
[  207.734397]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  207.738984]  ? kasan_check_read+0x11/0x20
[  207.743136]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  207.748677]  __handle_mm_fault+0x3ea0/0x5be0
[  207.753112]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  207.757958]  ? finish_task_switch+0x1f4/0x910
[  207.762457]  ? finish_task_switch+0x1b4/0x910
[  207.766967]  ? __switch_to_asm+0x34/0x70
[  207.771031]  ? preempt_notifier_register+0x200/0x200
[  207.776131]  ? __switch_to_asm+0x34/0x70
[  207.780198]  ? __switch_to_asm+0x34/0x70
[  207.784275]  ? zap_class+0x640/0x640
[  207.787990]  ? zap_class+0x640/0x640
[  207.791702]  ? __x64_sys_futex+0x53e/0x6a0
[  207.795945]  ? find_held_lock+0x36/0x1c0
[  207.800014]  ? handle_mm_fault+0x42a/0xc70
[  207.804252]  ? lock_downgrade+0x900/0x900
[  207.808409]  ? check_preemption_disabled+0x48/0x280
[  207.813431]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  207.818364]  ? kasan_check_read+0x11/0x20
[  207.822516]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  207.827810]  ? rcu_softirq_qs+0x20/0x20
[  207.831806]  ? trace_hardirqs_off_caller+0x310/0x310
[  207.836917]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  207.842454]  ? check_preemption_disabled+0x48/0x280
[  207.847493]  handle_mm_fault+0x54f/0xc70
[  207.851586]  ? __handle_mm_fault+0x5be0/0x5be0
[  207.856175]  ? find_vma+0x34/0x190
[  207.859720]  __do_page_fault+0x5e8/0xe60
[  207.863807]  ? trace_hardirqs_off+0xb8/0x310
[  207.868264]  do_page_fault+0xf2/0x7e0
[  207.872072]  ? vmalloc_sync_all+0x30/0x30
[  207.876224]  ? error_entry+0x70/0xd0
[  207.879939]  ? trace_hardirqs_off_caller+0xbb/0x310
[  207.884954]  ? trace_hardirqs_on_caller+0xc0/0x310
[  207.889889]  ? syscall_return_slowpath+0x5e0/0x5e0
[  207.894826]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  207.899673]  ? trace_hardirqs_on_caller+0x310/0x310
[  207.904688]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  207.910145]  ? prepare_exit_to_usermode+0x291/0x3b0
[  207.915163]  ? page_fault+0x8/0x30
[  207.918710]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  207.923554]  ? page_fault+0x8/0x30
[  207.927114]  page_fault+0x1e/0x30
[  207.930568] RIP: 0033:0x40f9c0
[  207.933771] Code: Bad RIP value.
[  207.937132] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  207.942491] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  207.949857] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  207.957148] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  207.964426] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  207.971692] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  207.978993] CPU: 0 PID: 8593 Comm: syz-executor2 Not tainted 4.20.0-rc3+ #88
[  207.979057] aoe: skb alloc failure
[  207.986184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  207.986191] Call Trace:
[  207.986213]  dump_stack+0x244/0x39d
[  207.986251]  ? dump_stack_print_info.cold.1+0x20/0x20
[  207.989802] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  207.999131]  warn_alloc.cold.116+0xb7/0x1bd
[  208.001682] syz-fuzzer cpuset=/ mems_allowed=0
[  208.005302]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  208.034447]  ? lock_downgrade+0x900/0x900
[  208.038621]  ? trace_hardirqs_off+0xb8/0x310
[  208.043040]  ? trace_hardirqs_off+0xb8/0x310
[  208.047462]  __alloc_pages_slowpath+0x2651/0x2de0
[  208.052368]  ? warn_alloc+0x120/0x120
[  208.056177]  ? warn_alloc+0x120/0x120
[  208.059979]  ? dev_hard_start_xmit+0x42c/0xc80
[  208.064594]  ? warn_alloc+0x120/0x120
[  208.068416]  ? print_usage_bug+0xc0/0xc0
[  208.072498]  ? find_held_lock+0x36/0x1c0
[  208.076572]  ? print_usage_bug+0xc0/0xc0
[  208.080641]  ? cpuacct_charge+0x265/0x440
[  208.084795]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  208.090335]  ? should_fail+0x22d/0xd01
[  208.094225]  ? find_held_lock+0x36/0x1c0
[  208.098296]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  208.103405]  ? __lock_acquire+0x62f/0x4c20
[  208.107684]  ? should_fail+0x22d/0xd01
[  208.111585]  ? mark_held_locks+0x130/0x130
[  208.115838]  ? mark_held_locks+0x130/0x130
[  208.120090]  ? __lock_acquire+0x62f/0x4c20
[  208.124331]  ? zap_class+0x640/0x640
[  208.128076]  ? __lock_is_held+0xb5/0x140
[  208.132160]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.137706]  ? check_preemption_disabled+0x48/0x280
[  208.142736]  ? __lock_is_held+0xb5/0x140
[  208.146806]  __alloc_pages_nodemask+0xad8/0xea0
[  208.151476]  ? zap_class+0x640/0x640
[  208.155232]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  208.160264]  ? find_held_lock+0x36/0x1c0
[  208.164371]  ? ____cache_alloc_node+0x1c7/0x1e0
[  208.169044]  ? lock_downgrade+0x900/0x900
[  208.173202]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  208.178743]  cache_grow_begin+0xa5/0x8c0
[  208.182804]  ? do_raw_spin_unlock+0xa7/0x330
[  208.187225]  fallback_alloc+0x204/0x2e0
[  208.191211]  ____cache_alloc_node+0x1c7/0x1e0
[  208.195718]  kmem_cache_alloc+0x1f8/0x730
[  208.199897]  skb_clone+0x1bb/0x500
[  208.203455]  ? finish_task_switch+0x2f4/0x910
[  208.207951]  ? skb_split+0x11e0/0x11e0
[  208.211846]  ? preempt_notifier_register+0x200/0x200
[  208.216964]  ? __switch_to_asm+0x34/0x70
[  208.221025]  ? __switch_to_asm+0x34/0x70
[  208.225088]  ? __switch_to_asm+0x40/0x70
[  208.229149]  ? __switch_to_asm+0x34/0x70
[  208.233208]  ? __switch_to_asm+0x40/0x70
[  208.237270]  ? __switch_to_asm+0x34/0x70
[  208.241332]  ? __switch_to_asm+0x40/0x70
[  208.245387]  ? __switch_to_asm+0x34/0x70
[  208.249445]  ? __switch_to_asm+0x34/0x70
[  208.253533]  ? __switch_to_asm+0x40/0x70
[  208.257606]  ? __switch_to_asm+0x34/0x70
[  208.261672]  bpf_clone_redirect+0xb9/0x490
[  208.265909]  ? __schedule+0x8d7/0x21d0
[  208.269806]  bpf_prog_8bbddced5dd14994+0xa5e/0x1000
[  208.274827]  ? __sched_text_start+0x8/0x8
[  208.279006]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  208.283782]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  208.288373]  ? retint_kernel+0x2d/0x2d
[  208.292265]  ? find_held_lock+0x36/0x1c0
[  208.296353]  ? lock_acquire+0x1ed/0x520
[  208.300343]  ? bpf_test_run+0x3cb/0x780
[  208.304351]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.309906]  ? check_preemption_disabled+0x48/0x280
[  208.314933]  ? kasan_check_read+0x11/0x20
[  208.319084]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  208.324368]  ? rcu_softirq_qs+0x20/0x20
[  208.328347]  ? preempt_schedule+0x4d/0x60
[  208.332496]  ? ___preempt_schedule+0x16/0x18
[  208.336931]  ? bpf_test_run+0x25d/0x780
[  208.340921]  ? netlink_diag_dump+0x2a0/0x2a0
[  208.345358]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  208.350129]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  208.354971]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  208.360513]  ? fput+0x130/0x1a0
[  208.363798]  ? __bpf_prog_get+0x9b/0x290
[  208.367921]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  208.372797]  ? bpf_prog_test_run+0x130/0x1a0
[  208.377211]  ? __x64_sys_bpf+0x3d8/0x520
[  208.381273]  ? bpf_prog_get+0x20/0x20
[  208.385095]  ? do_syscall_64+0x1b9/0x820
[  208.389155]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  208.394522]  ? syscall_return_slowpath+0x5e0/0x5e0
[  208.399456]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  208.404308]  ? trace_hardirqs_on_caller+0x310/0x310
[  208.409361]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  208.414380]  ? prepare_exit_to_usermode+0x291/0x3b0
[  208.419405]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  208.424256]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  208.429639] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  208.429645] warn_alloc_show_mem: 1 callbacks suppressed
[  208.429652] Mem-Info:
[  208.436756] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  208.436766] Call Trace:
[  208.442149] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  208.442149]  active_file:11 inactive_file:15 isolated_file:0
[  208.442149]  unevictable:0 dirty:0 writeback:0 unstable:0
[  208.442149]  slab_reclaimable:9045 slab_unreclaimable:1457228
[  208.442149]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  208.442149]  free:13757 free_pcp:113 free_cma:0
[  208.444543]  <IRQ>
[  208.453918] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:44kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  208.456503]  dump_stack+0x244/0x39d
[  208.489534] 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
[  208.491688]  ? dump_stack_print_info.cold.1+0x20/0x20
[  208.519499] lowmem_reserve[]: 0 2818 6321 6321
[  208.523145]  warn_alloc.cold.116+0xb7/0x1bd
[  208.549227] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  208.554432]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  208.558985] lowmem_reserve[]: 0 0 3503 3503
[  208.563829]  ? lock_downgrade+0x900/0x900
[  208.591308] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:44kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  208.596155]  ? trace_hardirqs_off+0xb8/0x310
[  208.600446] lowmem_reserve[]: 0 0 0 0
[  208.604591]  ? trace_hardirqs_off+0xb8/0x310
[  208.633631] 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
[  208.638039]  __alloc_pages_slowpath+0x2651/0x2de0
[  208.641807] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  208.646235]  ? warn_alloc+0x120/0x120
[  208.659720] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  208.664583]  ? warn_alloc+0x120/0x120
[  208.680088] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  208.683892]  ? __lock_acquire+0x62f/0x4c20
[  208.698436] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  208.702236]  ? warn_alloc+0x120/0x120
[  208.711058] 4236 total pagecache pages
[  208.715292]  ? print_usage_bug+0xc0/0xc0
[  208.723844] 0 pages in swap cache
[  208.727641]  ? print_usage_bug+0xc0/0xc0
[  208.731506] Swap cache stats: add 0, delete 0, find 0/0
[  208.735555]  ? mark_held_locks+0x130/0x130
[  208.738984] Free swap  = 0kB
[  208.743042]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  208.748382] Total swap = 0kB
[  208.752615]  ? should_fail+0x22d/0xd01
[  208.755609] 1965979 pages RAM
[  208.761139]  ? zap_class+0x640/0x640
[  208.764136] 0 pages HighMem/MovableOnly
[  208.768020]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  208.771105] 342854 pages reserved
[  208.774811]  ? __lock_acquire+0x62f/0x4c20
[  208.778762] 0 pages cma reserved
[  208.783861]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  208.792907] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  208.794891]  ? should_fail+0x22d/0xd01
[  208.794916]  ? mark_held_locks+0x130/0x130
[  208.799998] ksoftirqd/0 cpuset=/ mems_allowed=0
[  208.810304]  ? mark_held_locks+0x130/0x130
[  208.827262]  ? lock_downgrade+0x900/0x900
[  208.831411]  ? zap_class+0x640/0x640
[  208.835130]  ? zap_class+0x640/0x640
[  208.838847]  ? zap_class+0x640/0x640
[  208.842568]  ? do_raw_spin_unlock+0xa7/0x330
[  208.846980]  ? trace_hardirqs_on+0x310/0x310
[  208.851396]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.856933]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.862494]  ? check_preemption_disabled+0x48/0x280
[  208.867531]  ? __lock_is_held+0xb5/0x140
[  208.871601]  __alloc_pages_nodemask+0xad8/0xea0
[  208.876270]  ? zap_class+0x640/0x640
[  208.879993]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  208.885019]  ? find_held_lock+0x36/0x1c0
[  208.889092]  ? ____cache_alloc_node+0x1c7/0x1e0
[  208.893766]  ? lock_downgrade+0x900/0x900
[  208.897927]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.903472]  cache_grow_begin+0xa5/0x8c0
[  208.907532]  ? do_raw_spin_unlock+0xa7/0x330
[  208.911954]  fallback_alloc+0x204/0x2e0
[  208.915935]  ____cache_alloc_node+0x1c7/0x1e0
[  208.920434]  kmem_cache_alloc_node+0xe3/0x730
[  208.924931]  ? lockdep_hardirqs_on+0x296/0x5b0
[  208.929521]  __alloc_skb+0x119/0x770
[  208.933236]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  208.938606]  ? netdev_alloc_frag+0x1f0/0x1f0
[  208.943027]  ? vprintk_default+0x28/0x30
[  208.947088]  ? vprintk_func+0x85/0x181
[  208.950975]  ? printk+0xa7/0xcf
[  208.954256]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  208.959024]  new_skb+0x26/0x1c0
[  208.962308]  aoecmd_cfg+0x279/0x7f0
[  208.965957]  ? find_held_lock+0x36/0x1c0
[  208.970036]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  208.974362]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  208.979915]  ? __lock_is_held+0xb5/0x140
[  208.983987]  discover_timer+0x50/0x60
[  208.987787]  call_timer_fn+0x272/0x920
[  208.991672]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  208.996519]  ? process_timeout+0x40/0x40
[  209.000588]  ? mark_held_locks+0xc7/0x130
[  209.004739]  ? _raw_spin_unlock_irq+0x27/0x80
[  209.009235]  ? _raw_spin_unlock_irq+0x27/0x80
[  209.013726]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  209.018580]  ? lockdep_hardirqs_on+0x296/0x5b0
[  209.023168]  ? trace_hardirqs_on+0xbd/0x310
[  209.027493]  ? kasan_check_read+0x11/0x20
[  209.031638]  ? __run_timers+0x7da/0xc70
[  209.035614]  ? trace_hardirqs_off_caller+0x310/0x310
[  209.040728]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  209.045565]  __run_timers+0x7e5/0xc70
[  209.049380]  ? timer_fixup_init+0x70/0x70
[  209.053535]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  209.058549]  ? zap_class+0x640/0x640
[  209.062267]  ? print_usage_bug+0xc0/0xc0
[  209.066333]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  209.071531]  ? find_held_lock+0x36/0x1c0
[  209.075601]  ? zap_class+0x640/0x640
[  209.079325]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.084876]  ? check_preemption_disabled+0x48/0x280
[  209.089914]  ? __lock_is_held+0xb5/0x140
[  209.093977]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.099517]  ? check_preemption_disabled+0x48/0x280
[  209.104542]  run_timer_softirq+0x52/0xb0
[  209.108608]  ? rcu_read_lock_sched_held+0x14f/0x180
[  209.113624]  __do_softirq+0x308/0xb7e
[  209.117429]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  209.121926]  ? lock_downgrade+0x900/0x900
[  209.126091]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  209.131205]  ? pvclock_read_flags+0x160/0x160
[  209.135705]  ? lapic_next_event+0x5a/0x90
[  209.139856]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.145410]  ? kvm_clock_read+0x18/0x30
[  209.149391]  ? kvm_sched_clock_read+0x9/0x20
[  209.153801]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  209.159344]  ? check_preemption_disabled+0x48/0x280
[  209.164391]  irq_exit+0x17f/0x1c0
[  209.167850]  smp_apic_timer_interrupt+0x1cb/0x760
[  209.172709]  ? smp_call_function_single_interrupt+0x159/0x650
[  209.178596]  ? smp_call_function_single_interrupt+0x650/0x650
[  209.184481]  ? interrupt_entry+0xb5/0xc0
[  209.188579]  ? trace_hardirqs_off_caller+0xbb/0x310
[  209.193595]  ? trace_hardirqs_off_caller+0xbb/0x310
[  209.198615]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  209.203460]  ? trace_hardirqs_on_caller+0x310/0x310
[  209.208476]  ? trace_hardirqs_on_caller+0x310/0x310
[  209.213511]  ? task_prio+0x50/0x50
[  209.217073]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.222611]  ? check_preemption_disabled+0x48/0x280
[  209.227631]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  209.232483]  apic_timer_interrupt+0xf/0x20
[  209.236712]  </IRQ>
[  209.238953] RIP: 0010:dump_stack+0x358/0x39d
[  209.243419] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  209.262315] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  209.270025] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  209.277289] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  209.284559] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  209.291828] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  209.299092] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  209.306386]  ? dump_stack+0x34f/0x39d
[  209.310200]  ? dump_stack_print_info.cold.1+0x20/0x20
[  209.315402]  ? mark_held_locks+0x130/0x130
[  209.319641]  ? mark_held_locks+0x130/0x130
[  209.323887]  dump_header+0x27b/0xf72
[  209.327624]  ? pagefault_out_of_memory+0x197/0x197
[  209.332563]  ? __lock_acquire+0x62f/0x4c20
[  209.336799]  ? percpu_ref_get_many+0x240/0x240
[  209.341387]  ? print_usage_bug+0xc0/0xc0
[  209.345453]  ? zap_class+0x640/0x640
[  209.349167]  ? print_usage_bug+0xc0/0xc0
[  209.353226]  ? print_usage_bug+0xc0/0xc0
[  209.357287]  ? zap_class+0x640/0x640
[  209.361005]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.366545]  ? find_held_lock+0x36/0x1c0
[  209.370616]  ? mark_held_locks+0xc7/0x130
[  209.374767]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  209.379878]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  209.385002]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  209.389589]  ? trace_hardirqs_on+0xbd/0x310
[  209.393911]  ? kasan_check_read+0x11/0x20
[  209.398062]  ? ___ratelimit+0x3b4/0x672
[  209.402042]  ? trace_hardirqs_off_caller+0x310/0x310
[  209.407151]  ? trace_hardirqs_on+0x310/0x310
[  209.411564]  ? lock_downgrade+0x900/0x900
[  209.415717]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  209.420823]  ? ___ratelimit+0x3b9/0x672
[  209.424803]  ? idr_get_free+0xf70/0xf70
[  209.428778]  ? find_held_lock+0x36/0x1c0
[  209.432847]  oom_kill_process.cold.27+0x10/0x903
[  209.437624]  ? zap_class+0x640/0x640
[  209.441343]  ? check_preemption_disabled+0x48/0x280
[  209.446367]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  209.451301]  ? kasan_check_read+0x11/0x20
[  209.455447]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  209.460728]  ? oom_evaluate_task+0x540/0x540
[  209.465171]  ? find_held_lock+0x36/0x1c0
[  209.469258]  ? out_of_memory+0x974/0x1430
[  209.473411]  ? lock_downgrade+0x900/0x900
[  209.477574]  ? check_preemption_disabled+0x48/0x280
[  209.482593]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  209.487521]  ? kasan_check_read+0x11/0x20
[  209.491680]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  209.496957]  ? rcu_softirq_qs+0x20/0x20
[  209.500969]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  209.506509]  ? oom_evaluate_task+0x302/0x540
[  209.510931]  out_of_memory+0xa84/0x1430
[  209.514919]  ? oom_killer_disable+0x3a0/0x3a0
[  209.519415]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  209.524347]  ? __ww_mutex_check_waiters+0x160/0x160
[  209.529397]  __alloc_pages_slowpath+0x232c/0x2de0
[  209.534266]  ? warn_alloc+0x120/0x120
[  209.538066]  ? mark_held_locks+0x130/0x130
[  209.542311]  ? find_get_entry+0xaae/0x1120
[  209.546559]  ? filemap_map_pages+0x1a20/0x1a20
[  209.551147]  ? zap_class+0x640/0x640
[  209.554876]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.560416]  ? check_preemption_disabled+0x48/0x280
[  209.565432]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  209.570969]  ? should_fail+0x22d/0xd01
[  209.574886]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  209.580024]  ? zap_class+0x640/0x640
[  209.583758]  ? __lock_is_held+0xb5/0x140
[  209.587825]  ? mark_held_locks+0x130/0x130
[  209.592060]  ? lock_release+0xa00/0xa00
[  209.596039]  ? perf_trace_sched_process_exec+0x860/0x860
[  209.601491]  ? xa_load+0x2ba/0x460
[  209.605038]  ? lock_downgrade+0x900/0x900
[  209.609206]  ? __might_sleep+0x95/0x190
[  209.613197]  __alloc_pages_nodemask+0xad8/0xea0
[  209.617878]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  209.622928]  ? __page_cache_alloc+0x191/0x5c0
[  209.627424]  ? xa_load+0x2e1/0x460
[  209.630965]  ? xa_clear_mark+0x40/0x40
[  209.634854]  ? zap_class+0x640/0x640
[  209.638586]  ? zap_class+0x640/0x640
[  209.642299]  ? zap_class+0x640/0x640
[  209.646014]  ? __do_page_cache_readahead+0x663/0x810
[  209.651137]  ? find_held_lock+0x36/0x1c0
[  209.655201]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  209.660776]  alloc_pages_current+0x173/0x350
[  209.665192]  __page_cache_alloc+0x38c/0x5c0
[  209.669526]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  209.674453]  ? kasan_check_read+0x11/0x20
[  209.678602]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  209.683886]  ? generic_perform_write+0x6a0/0x6a0
[  209.688645]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  209.694185]  ? check_preemption_disabled+0x48/0x280
[  209.699207]  filemap_fault+0x1595/0x25f0
[  209.703283]  ? __lock_page_or_retry+0xa00/0xa00
[  209.707956]  ? mark_held_locks+0x130/0x130
[  209.712198]  ? filemap_map_pages+0xd6b/0x1a20
[  209.716693]  ? lock_downgrade+0x900/0x900
[  209.720840]  ? check_preemption_disabled+0x48/0x280
[  209.725871]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  209.730818]  ? kasan_check_read+0x11/0x20
[  209.734980]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  209.740258]  ? rcu_softirq_qs+0x20/0x20
[  209.744243]  ? filemap_map_pages+0xd92/0x1a20
[  209.748753]  ? find_get_entries_tag+0x1400/0x1400
[  209.753612]  ? debug_object_destroy+0x2b0/0x2b0
[  209.758283]  ? lock_pi_update_atomic+0x150/0x150
[  209.763037]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  209.768592]  ? lock_acquire+0x1ed/0x520
[  209.772573]  ? ext4_filemap_fault+0x7a/0xad
[  209.776908]  ? lock_release+0xa00/0xa00
[  209.780906]  ? perf_trace_sched_process_exec+0x860/0x860
[  209.786360]  ? print_usage_bug+0xc0/0xc0
[  209.790428]  ? print_usage_bug+0xc0/0xc0
[  209.794503]  ? down_read+0x8d/0x120
[  209.798153]  ? ext4_filemap_fault+0x7a/0xad
[  209.802475]  ? __down_interruptible+0x700/0x700
[  209.807181]  ext4_filemap_fault+0x82/0xad
[  209.811345]  __do_fault+0x100/0x6b0
[  209.814976]  ? find_held_lock+0x36/0x1c0
[  209.819037]  ? pmd_devmap_trans_unstable+0x220/0x220
[  209.824152]  ? mark_held_locks+0x130/0x130
[  209.828405]  ? mark_held_locks+0x130/0x130
[  209.832656]  ? _raw_spin_unlock_irq+0x27/0x80
[  209.837147]  ? _raw_spin_unlock_irq+0x27/0x80
[  209.841661]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  209.846248]  ? kasan_check_read+0x11/0x20
[  209.850404]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  209.855942]  __handle_mm_fault+0x3ea0/0x5be0
[  209.860356]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  209.865204]  ? finish_task_switch+0x1f4/0x910
[  209.869698]  ? finish_task_switch+0x1b4/0x910
[  209.874206]  ? __switch_to_asm+0x34/0x70
[  209.878275]  ? preempt_notifier_register+0x200/0x200
[  209.883373]  ? __switch_to_asm+0x34/0x70
[  209.887437]  ? __switch_to_asm+0x34/0x70
[  209.891510]  ? zap_class+0x640/0x640
[  209.895226]  ? zap_class+0x640/0x640
[  209.898957]  ? __x64_sys_futex+0x53e/0x6a0
[  209.903197]  ? find_held_lock+0x36/0x1c0
[  209.907267]  ? handle_mm_fault+0x42a/0xc70
[  209.911508]  ? lock_downgrade+0x900/0x900
[  209.915658]  ? check_preemption_disabled+0x48/0x280
[  209.920678]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  209.925606]  ? kasan_check_read+0x11/0x20
[  209.929752]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  209.935058]  ? rcu_softirq_qs+0x20/0x20
[  209.939034]  ? trace_hardirqs_off_caller+0x310/0x310
[  209.944138]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  209.949676]  ? check_preemption_disabled+0x48/0x280
[  209.954733]  handle_mm_fault+0x54f/0xc70
[  209.958799]  ? __handle_mm_fault+0x5be0/0x5be0
[  209.963395]  ? find_vma+0x34/0x190
[  209.966941]  __do_page_fault+0x5e8/0xe60
[  209.970999]  ? trace_hardirqs_off+0xb8/0x310
[  209.975434]  do_page_fault+0xf2/0x7e0
[  209.979292]  ? vmalloc_sync_all+0x30/0x30
[  209.983455]  ? error_entry+0x70/0xd0
[  209.987185]  ? trace_hardirqs_off_caller+0xbb/0x310
[  209.992214]  ? trace_hardirqs_on_caller+0xc0/0x310
[  209.997140]  ? syscall_return_slowpath+0x5e0/0x5e0
[  210.002081]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  210.006929]  ? trace_hardirqs_on_caller+0x310/0x310
[  210.011946]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  210.017434]  ? prepare_exit_to_usermode+0x291/0x3b0
[  210.022463]  ? page_fault+0x8/0x30
[  210.026005]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  210.030855]  ? page_fault+0x8/0x30
[  210.034408]  page_fault+0x1e/0x30
[  210.037909] RIP: 0033:0x40f9c0
[  210.041132] Code: Bad RIP value.
[  210.044501] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  210.049882] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  210.057150] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  210.064416] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  210.071683] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  210.078953] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  210.086246] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  210.086332] aoe: skb alloc failure
[  210.093011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  210.093019] Call Trace:
[  210.096612] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  210.105905]  dump_stack+0x244/0x39d
[  210.108462] syz-fuzzer cpuset=/ mems_allowed=0
[  210.118676]  ? dump_stack_print_info.cold.1+0x20/0x20
[  210.132040]  warn_alloc.cold.116+0xb7/0x1bd
[  210.136365]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  210.141216]  ? lock_downgrade+0x900/0x900
[  210.145374]  ? trace_hardirqs_off+0xb8/0x310
[  210.149789]  ? trace_hardirqs_off+0xb8/0x310
[  210.154203]  __alloc_pages_slowpath+0x2651/0x2de0
[  210.159076]  ? warn_alloc+0x120/0x120
[  210.162911]  ? warn_alloc+0x120/0x120
[  210.166717]  ? warn_alloc+0x120/0x120
[  210.170519]  ? print_usage_bug+0xc0/0xc0
[  210.174577]  ? mark_held_locks+0x130/0x130
[  210.178816]  ? print_usage_bug+0xc0/0xc0
[  210.182888]  ? ipv4_mtu+0x39f/0x590
[  210.186527]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  210.192063]  ? should_fail+0x22d/0xd01
[  210.195960]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  210.201064]  ? __lock_acquire+0x62f/0x4c20
[  210.205305]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  210.210436]  ? should_fail+0x22d/0xd01
[  210.214324]  ? ip_fragment.constprop.50+0x240/0x240
[  210.219340]  ? kasan_check_read+0x11/0x20
[  210.223495]  ? mark_held_locks+0x130/0x130
[  210.227732]  ? mark_held_locks+0x130/0x130
[  210.231970]  ? ret_from_fork+0x3a/0x50
[  210.235860]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.241429]  ? check_preemption_disabled+0x48/0x280
[  210.246448]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.251986]  ? check_preemption_disabled+0x48/0x280
[  210.257023]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  210.262561]  ? rcu_pm_notify+0xc0/0xc0
[  210.266453]  __alloc_pages_nodemask+0xad8/0xea0
[  210.271123]  ? zap_class+0x640/0x640
[  210.274842]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  210.279904]  ? find_held_lock+0x36/0x1c0
[  210.283980]  ? ____cache_alloc_node+0x1c7/0x1e0
[  210.288652]  ? lock_downgrade+0x900/0x900
[  210.292807]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.298347]  cache_grow_begin+0xa5/0x8c0
[  210.302408]  ? do_raw_spin_unlock+0xa7/0x330
[  210.306822]  fallback_alloc+0x204/0x2e0
[  210.310803]  ____cache_alloc_node+0x1c7/0x1e0
[  210.315307]  kmem_cache_alloc+0x1f8/0x730
[  210.319458]  ? print_usage_bug+0xc0/0xc0
[  210.323526]  __build_skb+0xab/0x430
[  210.327153]  ? skb_try_coalesce+0x1b70/0x1b70
[  210.331648]  ? print_usage_bug+0xc0/0xc0
[  210.335708]  ? __alloc_pages_nodemask+0xea0/0xea0
[  210.340553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.346096]  ? check_preemption_disabled+0x48/0x280
[  210.351120]  __napi_alloc_skb+0x1d6/0x310
[  210.355273]  page_to_skb.isra.45+0xee/0x8d0
[  210.359599]  ? check_preemption_disabled+0x48/0x280
[  210.364622]  ? virtnet_remove+0xf0/0xf0
[  210.368593]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  210.373524]  ? kasan_check_read+0x11/0x20
[  210.377674]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  210.382951]  ? rcu_softirq_qs+0x20/0x20
[  210.386940]  receive_mergeable+0x155d/0x3a90
[  210.391360]  ? virtnet_probe+0x2240/0x2240
[  210.395590]  ? find_held_lock+0x36/0x1c0
[  210.399667]  ? zap_class+0x640/0x640
[  210.403381]  ? cpuacct_charge+0x265/0x440
[  210.407536]  ? rb_erase+0x3710/0x3710
[  210.411338]  ? find_held_lock+0x36/0x1c0
[  210.415403]  ? zap_class+0x640/0x640
[  210.419116]  ? find_held_lock+0x36/0x1c0
[  210.423199]  ? cpuacct_charge+0x265/0x440
[  210.427396]  ? find_held_lock+0x36/0x1c0
[  210.431990]  ? update_curr+0x4cf/0xbd0
[  210.435924]  ? print_usage_bug+0xc0/0xc0
[  210.439985]  ? lock_downgrade+0x900/0x900
[  210.444133]  ? check_preemption_disabled+0x48/0x280
[  210.449152]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  210.454084]  ? kasan_check_read+0x11/0x20
[  210.458229]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  210.463504]  ? rcu_softirq_qs+0x20/0x20
[  210.467486]  ? print_usage_bug+0xc0/0xc0
[  210.471558]  ? __lock_acquire+0x62f/0x4c20
[  210.475790]  ? update_curr+0x4ec/0xbd0
[  210.479685]  ? zap_class+0x640/0x640
[  210.483404]  ? __update_load_avg_se+0x5eb/0xae0
[  210.488071]  ? mark_held_locks+0x130/0x130
[  210.492304]  ? account_entity_enqueue+0x3a3/0x660
[  210.497147]  ? __update_load_avg_blocked_se+0x690/0x690
[  210.502518]  ? __update_load_avg_se+0xae0/0xae0
[  210.507186]  ? __lock_is_held+0xb5/0x140
[  210.511258]  ? update_load_avg+0x387/0x2470
[  210.515576]  ? put_prev_task_fair+0x80/0x80
[  210.519907]  ? print_usage_bug+0xc0/0xc0
[  210.523975]  ? attach_entity_load_avg+0x860/0x860
[  210.528813]  ? __lock_acquire+0x62f/0x4c20
[  210.533048]  ? mark_held_locks+0x130/0x130
[  210.537297]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.542833]  ? zap_class+0x640/0x640
[  210.546565]  ? rb_erase_cached+0xc78/0x3720
[  210.550903]  ? rb_next+0x140/0x140
[  210.554449]  ? mark_held_locks+0x130/0x130
[  210.558691]  ? cpuacct_charge+0x265/0x440
[  210.563041]  ? find_held_lock+0x36/0x1c0
[  210.567108]  ? print_usage_bug+0xc0/0xc0
[  210.571167]  ? print_usage_bug+0xc0/0xc0
[  210.575227]  ? print_usage_bug+0xc0/0xc0
[  210.579302]  ? print_usage_bug+0xc0/0xc0
[  210.583364]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  210.588301]  receive_buf+0xb3c/0x3270
[  210.592107]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.597642]  ? __msecs_to_jiffies+0x4a/0x60
[  210.601963]  ? update_group_capacity+0xf9/0x11a0
[  210.606724]  ? receive_mergeable+0x3a90/0x3a90
[  210.611310]  ? print_usage_bug+0xc0/0xc0
[  210.615377]  ? find_next_and_bit+0x183/0x1e0
[  210.619808]  ? cpumask_next_and+0x49/0x50
[  210.623957]  ? update_sd_lb_stats+0x41b/0x3230
[  210.628540]  ? try_to_wake_up+0x11c/0x1490
[  210.632773]  ? zap_class+0x640/0x640
[  210.636506]  ? __lock_acquire+0x62f/0x4c20
[  210.640743]  ? __update_load_avg_blocked_se+0x690/0x690
[  210.646109]  ? __update_load_avg_se+0xae0/0xae0
[  210.650776]  ? __lock_is_held+0xb5/0x140
[  210.654848]  ? update_load_avg+0x387/0x2470
[  210.659182]  ? __update_load_avg_se+0xae0/0xae0
[  210.663853]  ? attach_entity_load_avg+0x860/0x860
[  210.668716]  ? update_load_avg+0x387/0x2470
[  210.673038]  ? update_load_avg+0x387/0x2470
[  210.677366]  ? attach_entity_load_avg+0x860/0x860
[  210.682206]  ? attach_entity_load_avg+0x860/0x860
[  210.687061]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  210.692604]  ? zap_class+0x640/0x640
[  210.696322]  ? mark_held_locks+0x130/0x130
[  210.700556]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.706092]  ? vring_use_dma_api+0xa5/0xc0
[  210.710331]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  210.715881]  ? vring_unmap_one+0x5a/0x410
[  210.720038]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  210.725573]  ? detach_buf+0x34b/0x5d0
[  210.729397]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  210.734933]  ? virtqueue_get_buf_ctx+0x3d5/0x820
[  210.739695]  ? virtqueue_detach_unused_buf+0x220/0x220
[  210.744979]  ? print_usage_bug+0xc0/0xc0
[  210.749050]  virtnet_poll+0x421/0x105f
[  210.752948]  ? receive_buf+0x3270/0x3270
[  210.757014]  ? __lock_acquire+0x62f/0x4c20
[  210.761253]  ? net_rx_action+0x4b5/0x19b0
[  210.765397]  ? net_rx_action+0x4b5/0x19b0
[  210.769544]  ? lockdep_hardirqs_on+0x296/0x5b0
[  210.774141]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.779679]  ? check_preemption_disabled+0x48/0x280
[  210.784700]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.790240]  net_rx_action+0x7fa/0x19b0
[  210.794226]  ? napi_complete_done+0x7c0/0x7c0
[  210.798731]  ? rcu_note_context_switch+0x12ad/0x2150
[  210.803845]  ? zap_class+0x640/0x640
[  210.807575]  ? run_rebalance_domains+0x500/0x500
[  210.812332]  ? zap_class+0x640/0x640
[  210.816053]  ? find_held_lock+0x36/0x1c0
[  210.820126]  ? finish_task_switch+0x1f4/0x910
[  210.824623]  ? _raw_spin_unlock_irq+0x27/0x80
[  210.829115]  ? _raw_spin_unlock_irq+0x27/0x80
[  210.833609]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  210.838193]  ? trace_hardirqs_on+0xbd/0x310
[  210.842512]  ? kasan_check_read+0x11/0x20
[  210.846660]  ? finish_task_switch+0x1f4/0x910
[  210.851161]  ? trace_hardirqs_off_caller+0x310/0x310
[  210.856263]  ? compat_start_thread+0x80/0x80
[  210.860675]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.866234]  ? kasan_check_write+0x14/0x20
[  210.870483]  ? finish_task_switch+0x2f4/0x910
[  210.874992]  ? __switch_to_asm+0x40/0x70
[  210.879055]  ? preempt_notifier_register+0x200/0x200
[  210.884156]  ? __switch_to_asm+0x34/0x70
[  210.888213]  ? __switch_to_asm+0x34/0x70
[  210.892270]  ? __switch_to_asm+0x40/0x70
[  210.896328]  ? __switch_to_asm+0x34/0x70
[  210.900384]  ? __switch_to_asm+0x40/0x70
[  210.904439]  ? __switch_to_asm+0x34/0x70
[  210.908493]  ? __switch_to_asm+0x40/0x70
[  210.912551]  ? __switch_to_asm+0x34/0x70
[  210.916621]  ? pvclock_read_flags+0x160/0x160
[  210.921119]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  210.926659]  ? check_preemption_disabled+0x48/0x280
[  210.931684]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  210.937221]  ? rcu_pm_notify+0xc0/0xc0
[  210.941125]  __do_softirq+0x308/0xb7e
[  210.944931]  ? trace_hardirqs_on_caller+0xc0/0x310
[  210.949874]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  210.954986]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  210.960453]  ? trace_hardirqs_on+0x310/0x310
[  210.964898]  ? schedule+0x108/0x460
[  210.968533]  ? __schedule+0x21d0/0x21d0
[  210.972570]  ? trace_hardirqs_off+0xb8/0x310
[  210.976983]  ? smpboot_thread_fn+0x68b/0xa00
[  210.981388]  ? trace_hardirqs_on+0x310/0x310
[  210.985828]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  210.991368]  ? check_preemption_disabled+0x48/0x280
[  210.996384]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  211.001939]  ? takeover_tasklets+0xa90/0xa90
[  211.006355]  run_ksoftirqd+0x5e/0x100
[  211.010155]  smpboot_thread_fn+0x68b/0xa00
[  211.014389]  ? sort_range+0x30/0x30
[  211.018019]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  211.023121]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  211.028661]  ? __kthread_parkme+0xfb/0x1a0
[  211.032905]  ? sort_range+0x30/0x30
[  211.036536]  kthread+0x35a/0x440
[  211.039913]  ? kthread_stop+0x900/0x900
[  211.043898]  ret_from_fork+0x3a/0x50
[  211.047641] warn_alloc_show_mem: 1 callbacks suppressed
[  211.047653] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  211.047655] Mem-Info:
[  211.047686] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  211.047686]  active_file:12 inactive_file:14 isolated_file:0
[  211.047686]  unevictable:0 dirty:0 writeback:0 unstable:0
[  211.047686]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  211.047686]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  211.047686]  free:13757 free_pcp:113 free_cma:0
[  211.053020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  211.053028] Call Trace:
[  211.059971] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  211.062370]  <IRQ>
[  211.095412] 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
[  211.104769]  dump_stack+0x244/0x39d
[  211.107324] lowmem_reserve[]: 0 2818 6321 6321
[  211.135172]  ? dump_stack_print_info.cold.1+0x20/0x20
[  211.137291] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  211.163408]  warn_alloc.cold.116+0xb7/0x1bd
[  211.166993] lowmem_reserve[]: 0 0 3503 3503
[  211.171568]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  211.176733] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  211.204231]  ? lock_downgrade+0x900/0x900
[  211.208533] lowmem_reserve[]: 0 0 0 0
[  211.212877]  ? trace_hardirqs_off+0xb8/0x310
[  211.217703] 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
[  211.246778]  ? trace_hardirqs_off+0xb8/0x310
[  211.250900] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  211.254696]  __alloc_pages_slowpath+0x2651/0x2de0
[  211.259075] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  211.272627]  ? warn_alloc+0x120/0x120
[  211.276998] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  211.292507]  ? warn_alloc+0x120/0x120
[  211.297327] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  211.311891]  ? warn_alloc+0x120/0x120
[  211.315666] 4236 total pagecache pages
[  211.324497]  ? print_usage_bug+0xc0/0xc0
[  211.328280] 0 pages in swap cache
[  211.336846]  ? print_usage_bug+0xc0/0xc0
[  211.340625] Swap cache stats: add 0, delete 0, find 0/0
[  211.344507]  ? ktime_get+0x2c1/0x400
[  211.348545] Free swap  = 0kB
[  211.351995]  ? check_preemption_disabled+0x48/0x280
[  211.356028] Total swap = 0kB
[  211.361388]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  211.365068] 1965979 pages RAM
[  211.368081]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  211.373071] 0 pages HighMem/MovableOnly
[  211.376082]  ? should_fail+0x22d/0xd01
[  211.380553] 342854 pages reserved
[  211.383653]  ? kasan_check_read+0x11/0x20
[  211.389164] 0 pages cma reserved
[  211.393130]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  211.397138] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  211.400443]  ? __lock_acquire+0x62f/0x4c20
[  211.404572] syz-executor2 cpuset=syz2 mems_allowed=0
[  211.407957]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  211.437910]  ? should_fail+0x22d/0xd01
[  211.441804]  ? print_usage_bug+0xc0/0xc0
[  211.445887]  ? mark_held_locks+0x130/0x130
[  211.450127]  ? mark_held_locks+0x130/0x130
[  211.454363]  ? check_preemption_disabled+0x48/0x280
[  211.459392]  ? zap_class+0x640/0x640
[  211.463109]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  211.467876]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  211.473431]  ? check_preemption_disabled+0x48/0x280
[  211.478470]  ? __lock_is_held+0xb5/0x140
[  211.482541]  __alloc_pages_nodemask+0xad8/0xea0
[  211.487209]  ? zap_class+0x640/0x640
[  211.490930]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  211.495974]  ? find_held_lock+0x36/0x1c0
[  211.500056]  ? ____cache_alloc_node+0x1c7/0x1e0
[  211.504725]  ? lock_downgrade+0x900/0x900
[  211.508890]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  211.514439]  cache_grow_begin+0xa5/0x8c0
[  211.518517]  ? do_raw_spin_unlock+0xa7/0x330
[  211.522935]  fallback_alloc+0x204/0x2e0
[  211.526921]  ____cache_alloc_node+0x1c7/0x1e0
[  211.531421]  kmem_cache_alloc_node+0xe3/0x730
[  211.535921]  ? lockdep_hardirqs_on+0x296/0x5b0
[  211.540525]  __alloc_skb+0x119/0x770
[  211.544240]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  211.549609]  ? netdev_alloc_frag+0x1f0/0x1f0
[  211.554023]  ? vprintk_default+0x28/0x30
[  211.558084]  ? vprintk_func+0x85/0x181
[  211.561972]  ? printk+0xa7/0xcf
[  211.565252]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  211.570016]  new_skb+0x26/0x1c0
[  211.573312]  aoecmd_cfg+0x279/0x7f0
[  211.576939]  ? find_held_lock+0x36/0x1c0
[  211.581003]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  211.585334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  211.590891]  ? __lock_is_held+0xb5/0x140
[  211.594979]  discover_timer+0x50/0x60
[  211.598781]  call_timer_fn+0x272/0x920
[  211.602670]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  211.607512]  ? process_timeout+0x40/0x40
[  211.611579]  ? mark_held_locks+0xc7/0x130
[  211.615724]  ? _raw_spin_unlock_irq+0x27/0x80
[  211.620216]  ? _raw_spin_unlock_irq+0x27/0x80
[  211.624724]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  211.629579]  ? lockdep_hardirqs_on+0x296/0x5b0
[  211.634161]  ? trace_hardirqs_on+0xbd/0x310
[  211.638490]  ? kasan_check_read+0x11/0x20
[  211.642635]  ? __run_timers+0x7da/0xc70
[  211.646608]  ? trace_hardirqs_off_caller+0x310/0x310
[  211.651719]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  211.656560]  __run_timers+0x7e5/0xc70
[  211.660381]  ? timer_fixup_init+0x70/0x70
[  211.664531]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  211.669565]  ? zap_class+0x640/0x640
[  211.673285]  ? print_usage_bug+0xc0/0xc0
[  211.677352]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  211.682557]  ? find_held_lock+0x36/0x1c0
[  211.686626]  ? zap_class+0x640/0x640
[  211.690363]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  211.695904]  ? check_preemption_disabled+0x48/0x280
[  211.700931]  ? __lock_is_held+0xb5/0x140
[  211.704999]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  211.710539]  ? check_preemption_disabled+0x48/0x280
[  211.715559]  run_timer_softirq+0x52/0xb0
[  211.719625]  ? rcu_read_lock_sched_held+0x14f/0x180
[  211.724645]  __do_softirq+0x308/0xb7e
[  211.728453]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  211.732952]  ? lock_downgrade+0x900/0x900
[  211.737134]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  211.742249]  ? pvclock_read_flags+0x160/0x160
[  211.746760]  ? lapic_next_event+0x5a/0x90
[  211.750914]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  211.756467]  ? kvm_clock_read+0x18/0x30
[  211.760450]  ? kvm_sched_clock_read+0x9/0x20
[  211.764858]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  211.770409]  ? check_preemption_disabled+0x48/0x280
[  211.775434]  irq_exit+0x17f/0x1c0
[  211.778906]  smp_apic_timer_interrupt+0x1cb/0x760
[  211.783752]  ? smp_call_function_single_interrupt+0x159/0x650
[  211.789654]  ? smp_call_function_single_interrupt+0x650/0x650
[  211.795541]  ? interrupt_entry+0xb5/0xc0
[  211.799615]  ? trace_hardirqs_off_caller+0xbb/0x310
[  211.804644]  ? trace_hardirqs_off_caller+0xbb/0x310
[  211.809660]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  211.814509]  ? trace_hardirqs_on_caller+0x310/0x310
[  211.819523]  ? trace_hardirqs_on_caller+0x310/0x310
[  211.824542]  ? task_prio+0x50/0x50
[  211.828102]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  211.833642]  ? check_preemption_disabled+0x48/0x280
[  211.838666]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  211.843516]  apic_timer_interrupt+0xf/0x20
[  211.847744]  </IRQ>
[  211.849983] RIP: 0010:dump_stack+0x358/0x39d
[  211.854399] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  211.873299] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  211.881009] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  211.888304] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  211.895573] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  211.902838] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  211.910112] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  211.917419]  ? dump_stack+0x34f/0x39d
[  211.921235]  ? dump_stack_print_info.cold.1+0x20/0x20
[  211.926433]  ? mark_held_locks+0x130/0x130
[  211.930666]  ? mark_held_locks+0x130/0x130
[  211.934907]  dump_header+0x27b/0xf72
[  211.938635]  ? pagefault_out_of_memory+0x197/0x197
[  211.943575]  ? __lock_acquire+0x62f/0x4c20
[  211.947813]  ? percpu_ref_get_many+0x240/0x240
[  211.952401]  ? print_usage_bug+0xc0/0xc0
[  211.956464]  ? zap_class+0x640/0x640
[  211.960198]  ? print_usage_bug+0xc0/0xc0
[  211.964259]  ? print_usage_bug+0xc0/0xc0
[  211.968325]  ? zap_class+0x640/0x640
[  211.972129]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  211.977679]  ? find_held_lock+0x36/0x1c0
[  211.981750]  ? mark_held_locks+0xc7/0x130
[  211.985921]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  211.991026]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  211.996134]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  212.000723]  ? trace_hardirqs_on+0xbd/0x310
[  212.005046]  ? kasan_check_read+0x11/0x20
[  212.009197]  ? ___ratelimit+0x3b4/0x672
[  212.013173]  ? trace_hardirqs_off_caller+0x310/0x310
[  212.018277]  ? trace_hardirqs_on+0x310/0x310
[  212.022687]  ? lock_downgrade+0x900/0x900
[  212.026840]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  212.031951]  ? ___ratelimit+0x3b9/0x672
[  212.035931]  ? idr_get_free+0xf70/0xf70
[  212.039903]  ? find_held_lock+0x36/0x1c0
[  212.043973]  oom_kill_process.cold.27+0x10/0x903
[  212.048731]  ? zap_class+0x640/0x640
[  212.052446]  ? check_preemption_disabled+0x48/0x280
[  212.057463]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  212.062398]  ? kasan_check_read+0x11/0x20
[  212.066544]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  212.071827]  ? oom_evaluate_task+0x540/0x540
[  212.076242]  ? find_held_lock+0x36/0x1c0
[  212.080311]  ? out_of_memory+0x974/0x1430
[  212.084461]  ? lock_downgrade+0x900/0x900
[  212.088609]  ? check_preemption_disabled+0x48/0x280
[  212.093627]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  212.098559]  ? kasan_check_read+0x11/0x20
[  212.102708]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  212.107983]  ? rcu_softirq_qs+0x20/0x20
[  212.111961]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  212.117526]  ? oom_evaluate_task+0x302/0x540
[  212.121972]  out_of_memory+0xa84/0x1430
[  212.125970]  ? oom_killer_disable+0x3a0/0x3a0
[  212.130483]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  212.135432]  ? __ww_mutex_check_waiters+0x160/0x160
[  212.140458]  __alloc_pages_slowpath+0x232c/0x2de0
[  212.145344]  ? warn_alloc+0x120/0x120
[  212.149149]  ? mark_held_locks+0x130/0x130
[  212.153397]  ? find_get_entry+0xaae/0x1120
[  212.157646]  ? filemap_map_pages+0x1a20/0x1a20
[  212.162237]  ? zap_class+0x640/0x640
[  212.165958]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  212.171496]  ? check_preemption_disabled+0x48/0x280
[  212.176511]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  212.182051]  ? should_fail+0x22d/0xd01
[  212.185945]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  212.191050]  ? zap_class+0x640/0x640
[  212.194789]  ? __lock_is_held+0xb5/0x140
[  212.198860]  ? mark_held_locks+0x130/0x130
[  212.203109]  ? lock_release+0xa00/0xa00
[  212.207086]  ? perf_trace_sched_process_exec+0x860/0x860
[  212.212539]  ? xa_load+0x2ba/0x460
[  212.216091]  ? lock_downgrade+0x900/0x900
[  212.220242]  ? __might_sleep+0x95/0x190
[  212.224222]  __alloc_pages_nodemask+0xad8/0xea0
[  212.228906]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  212.233924]  ? __page_cache_alloc+0x191/0x5c0
[  212.238416]  ? xa_load+0x2e1/0x460
[  212.241971]  ? xa_clear_mark+0x40/0x40
[  212.245874]  ? zap_class+0x640/0x640
[  212.249615]  ? zap_class+0x640/0x640
[  212.253342]  ? zap_class+0x640/0x640
[  212.257074]  ? __do_page_cache_readahead+0x663/0x810
[  212.262187]  ? find_held_lock+0x36/0x1c0
[  212.266267]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  212.271809]  alloc_pages_current+0x173/0x350
[  212.276223]  __page_cache_alloc+0x38c/0x5c0
[  212.280545]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  212.285478]  ? kasan_check_read+0x11/0x20
[  212.289629]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  212.294909]  ? generic_perform_write+0x6a0/0x6a0
[  212.299665]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  212.305210]  ? check_preemption_disabled+0x48/0x280
[  212.310237]  filemap_fault+0x1595/0x25f0
[  212.314371]  ? __lock_page_or_retry+0xa00/0xa00
[  212.319066]  ? mark_held_locks+0x130/0x130
[  212.323313]  ? filemap_map_pages+0xd6b/0x1a20
[  212.327809]  ? lock_downgrade+0x900/0x900
[  212.331955]  ? check_preemption_disabled+0x48/0x280
[  212.336978]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  212.341910]  ? kasan_check_read+0x11/0x20
[  212.346058]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  212.351352]  ? rcu_softirq_qs+0x20/0x20
[  212.355341]  ? filemap_map_pages+0xd92/0x1a20
[  212.359855]  ? find_get_entries_tag+0x1400/0x1400
[  212.364710]  ? debug_object_destroy+0x2b0/0x2b0
[  212.369391]  ? lock_pi_update_atomic+0x150/0x150
[  212.374190]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  212.379742]  ? lock_acquire+0x1ed/0x520
[  212.383714]  ? ext4_filemap_fault+0x7a/0xad
[  212.388041]  ? lock_release+0xa00/0xa00
[  212.392018]  ? perf_trace_sched_process_exec+0x860/0x860
[  212.397481]  ? print_usage_bug+0xc0/0xc0
[  212.401568]  ? print_usage_bug+0xc0/0xc0
[  212.405683]  ? down_read+0x8d/0x120
[  212.409334]  ? ext4_filemap_fault+0x7a/0xad
[  212.413655]  ? __down_interruptible+0x700/0x700
[  212.418345]  ext4_filemap_fault+0x82/0xad
[  212.422513]  __do_fault+0x100/0x6b0
[  212.426137]  ? find_held_lock+0x36/0x1c0
[  212.430199]  ? pmd_devmap_trans_unstable+0x220/0x220
[  212.435487]  ? mark_held_locks+0x130/0x130
[  212.439723]  ? mark_held_locks+0x130/0x130
[  212.443953]  ? _raw_spin_unlock_irq+0x27/0x80
[  212.448442]  ? _raw_spin_unlock_irq+0x27/0x80
[  212.452954]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  212.457540]  ? kasan_check_read+0x11/0x20
[  212.461690]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  212.467246]  __handle_mm_fault+0x3ea0/0x5be0
[  212.471663]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  212.476508]  ? finish_task_switch+0x1f4/0x910
[  212.481019]  ? finish_task_switch+0x1b4/0x910
[  212.485512]  ? __switch_to_asm+0x34/0x70
[  212.489595]  ? preempt_notifier_register+0x200/0x200
[  212.494697]  ? __switch_to_asm+0x34/0x70
[  212.498755]  ? __switch_to_asm+0x34/0x70
[  212.502828]  ? zap_class+0x640/0x640
[  212.506556]  ? zap_class+0x640/0x640
[  212.510267]  ? __x64_sys_futex+0x53e/0x6a0
[  212.514508]  ? find_held_lock+0x36/0x1c0
[  212.518608]  ? handle_mm_fault+0x42a/0xc70
[  212.522858]  ? lock_downgrade+0x900/0x900
[  212.527031]  ? check_preemption_disabled+0x48/0x280
[  212.532051]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  212.536984]  ? kasan_check_read+0x11/0x20
[  212.541135]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  212.546411]  ? rcu_softirq_qs+0x20/0x20
[  212.550390]  ? trace_hardirqs_off_caller+0x310/0x310
[  212.555494]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  212.561036]  ? check_preemption_disabled+0x48/0x280
[  212.566530]  handle_mm_fault+0x54f/0xc70
[  212.570596]  ? __handle_mm_fault+0x5be0/0x5be0
[  212.575181]  ? find_vma+0x34/0x190
[  212.578729]  __do_page_fault+0x5e8/0xe60
[  212.582789]  ? trace_hardirqs_off+0xb8/0x310
[  212.587212]  do_page_fault+0xf2/0x7e0
[  212.591016]  ? vmalloc_sync_all+0x30/0x30
[  212.595164]  ? error_entry+0x70/0xd0
[  212.598888]  ? trace_hardirqs_off_caller+0xbb/0x310
[  212.603916]  ? trace_hardirqs_on_caller+0xc0/0x310
[  212.608872]  ? syscall_return_slowpath+0x5e0/0x5e0
[  212.613821]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  212.618675]  ? trace_hardirqs_on_caller+0x310/0x310
[  212.623688]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  212.629159]  ? prepare_exit_to_usermode+0x291/0x3b0
[  212.634176]  ? page_fault+0x8/0x30
[  212.637723]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  212.642567]  ? page_fault+0x8/0x30
[  212.646108]  page_fault+0x1e/0x30
[  212.649558] RIP: 0033:0x40f9c0
[  212.652773] Code: Bad RIP value.
[  212.656149] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  212.661511] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  212.668798] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  212.676077] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  212.683342] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  212.690610] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  212.697911] CPU: 0 PID: 8593 Comm: syz-executor2 Not tainted 4.20.0-rc3+ #88
[  212.697975] aoe: skb alloc failure
[  212.705103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  212.705109] Call Trace:
[  212.705133]  dump_stack+0x244/0x39d
[  212.705155]  ? dump_stack_print_info.cold.1+0x20/0x20
[  212.705183]  warn_alloc.cold.116+0xb7/0x1bd
[  212.708726] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  212.718048]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  212.720612] syz-fuzzer cpuset=/ mems_allowed=0
[  212.724239]  ? lock_downgrade+0x900/0x900
[  212.757474]  ? trace_hardirqs_off+0xb8/0x310
[  212.761903]  ? trace_hardirqs_off+0xb8/0x310
[  212.766338]  __alloc_pages_slowpath+0x2651/0x2de0
[  212.771211]  ? warn_alloc+0x120/0x120
[  212.775033]  ? warn_alloc+0x120/0x120
[  212.778836]  ? dev_hard_start_xmit+0x42c/0xc80
[  212.783434]  ? warn_alloc+0x120/0x120
[  212.787245]  ? print_usage_bug+0xc0/0xc0
[  212.791305]  ? find_held_lock+0x36/0x1c0
[  212.795369]  ? print_usage_bug+0xc0/0xc0
[  212.799467]  ? cpuacct_charge+0x265/0x440
[  212.803623]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  212.809168]  ? should_fail+0x22d/0xd01
[  212.813054]  ? find_held_lock+0x36/0x1c0
[  212.817124]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  212.822229]  ? __lock_acquire+0x62f/0x4c20
[  212.826485]  ? should_fail+0x22d/0xd01
[  212.830385]  ? mark_held_locks+0x130/0x130
[  212.834629]  ? mark_held_locks+0x130/0x130
[  212.838880]  ? __lock_acquire+0x62f/0x4c20
[  212.843127]  ? zap_class+0x640/0x640
[  212.846840]  ? __lock_is_held+0xb5/0x140
[  212.850934]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  212.856477]  ? check_preemption_disabled+0x48/0x280
[  212.861505]  ? __lock_is_held+0xb5/0x140
[  212.865595]  __alloc_pages_nodemask+0xad8/0xea0
[  212.870269]  ? zap_class+0x640/0x640
[  212.873989]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  212.879022]  ? find_held_lock+0x36/0x1c0
[  212.883099]  ? ____cache_alloc_node+0x1c7/0x1e0
[  212.887804]  ? lock_downgrade+0x900/0x900
[  212.891964]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  212.897512]  cache_grow_begin+0xa5/0x8c0
[  212.901573]  ? do_raw_spin_unlock+0xa7/0x330
[  212.905995]  fallback_alloc+0x204/0x2e0
[  212.909978]  ____cache_alloc_node+0x1c7/0x1e0
[  212.914485]  kmem_cache_alloc+0x1f8/0x730
[  212.918650]  skb_clone+0x1bb/0x500
[  212.922192]  ? finish_task_switch+0x2f4/0x910
[  212.926689]  ? skb_split+0x11e0/0x11e0
[  212.930581]  ? preempt_notifier_register+0x200/0x200
[  212.935687]  ? __switch_to_asm+0x34/0x70
[  212.939750]  ? __switch_to_asm+0x34/0x70
[  212.943841]  ? __switch_to_asm+0x40/0x70
[  212.947920]  ? __switch_to_asm+0x34/0x70
[  212.951981]  ? __switch_to_asm+0x40/0x70
[  212.956040]  ? __switch_to_asm+0x34/0x70
[  212.960099]  ? __switch_to_asm+0x40/0x70
[  212.964157]  ? __switch_to_asm+0x34/0x70
[  212.968219]  ? __switch_to_asm+0x34/0x70
[  212.972280]  ? __switch_to_asm+0x40/0x70
[  212.976382]  ? __switch_to_asm+0x34/0x70
[  212.980451]  bpf_clone_redirect+0xb9/0x490
[  212.984734]  ? __schedule+0x8d7/0x21d0
[  212.988634]  bpf_prog_8bbddced5dd14994+0xa5e/0x1000
[  212.993684]  ? __sched_text_start+0x8/0x8
[  212.997834]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  213.002605]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  213.007183]  ? retint_kernel+0x2d/0x2d
[  213.011081]  ? find_held_lock+0x36/0x1c0
[  213.015152]  ? lock_acquire+0x1ed/0x520
[  213.019132]  ? bpf_test_run+0x3cb/0x780
[  213.023112]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.028666]  ? check_preemption_disabled+0x48/0x280
[  213.033696]  ? kasan_check_read+0x11/0x20
[  213.037843]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  213.043132]  ? rcu_softirq_qs+0x20/0x20
[  213.047113]  ? preempt_schedule+0x4d/0x60
[  213.051267]  ? ___preempt_schedule+0x16/0x18
[  213.055701]  ? bpf_test_run+0x25d/0x780
[  213.059690]  ? netlink_diag_dump+0x2a0/0x2a0
[  213.064117]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  213.068898]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  213.073743]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  213.079284]  ? fput+0x130/0x1a0
[  213.082599]  ? __bpf_prog_get+0x9b/0x290
[  213.086669]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  213.091517]  ? bpf_prog_test_run+0x130/0x1a0
[  213.095928]  ? __x64_sys_bpf+0x3d8/0x520
[  213.099994]  ? bpf_prog_get+0x20/0x20
[  213.103820]  ? do_syscall_64+0x1b9/0x820
[  213.107910]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  213.113282]  ? syscall_return_slowpath+0x5e0/0x5e0
[  213.118218]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  213.123067]  ? trace_hardirqs_on_caller+0x310/0x310
[  213.128087]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  213.133106]  ? prepare_exit_to_usermode+0x291/0x3b0
[  213.138130]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  213.142986]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  213.148378] warn_alloc_show_mem: 1 callbacks suppressed
[  213.148406] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  213.148408] Mem-Info:
[  213.148442] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  213.148442]  active_file:12 inactive_file:14 isolated_file:0
[  213.148442]  unevictable:0 dirty:0 writeback:0 unstable:0
[  213.148442]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  213.148442]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  213.148442]  free:13757 free_pcp:113 free_cma:0
[  213.153776] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  213.160711] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  213.163109] Call Trace:
[  213.196152] 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
[  213.205496]  <IRQ>
[  213.233316] lowmem_reserve[]: 0 2818 6321 6321
[  213.235934]  dump_stack+0x244/0x39d
[  213.262010] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  213.264163]  ? dump_stack_print_info.cold.1+0x20/0x20
[  213.268709] lowmem_reserve[]: 0 0 3503 3503
[  213.272338]  warn_alloc.cold.116+0xb7/0x1bd
[  213.299808] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  213.304996]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  213.309283] lowmem_reserve[]: 0 0 0 0
[  213.313610]  ? lock_downgrade+0x900/0x900
[  213.342641] 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
[  213.347477]  ? trace_hardirqs_off+0xb8/0x310
[  213.351250] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  213.355398]  ? trace_hardirqs_off+0xb8/0x310
[  213.368894] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  213.373305]  __alloc_pages_slowpath+0x2651/0x2de0
[  213.388800] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  213.393215]  ? warn_alloc+0x120/0x120
[  213.407743] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  213.412574]  ? warn_alloc+0x120/0x120
[  213.421380] 4236 total pagecache pages
[  213.421397] 0 pages in swap cache
[  213.425187]  ? __lock_acquire+0x62f/0x4c20
[  213.433742] Swap cache stats: add 0, delete 0, find 0/0
[  213.437531]  ? warn_alloc+0x120/0x120
[  213.441408] Free swap  = 0kB
[  213.444857]  ? print_usage_bug+0xc0/0xc0
[  213.449078] Total swap = 0kB
[  213.454431]  ? print_usage_bug+0xc0/0xc0
[  213.458227] 1965979 pages RAM
[  213.461238]  ? mark_held_locks+0x130/0x130
[  213.465273] 0 pages HighMem/MovableOnly
[  213.468288]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  213.472324] 342854 pages reserved
[  213.475427]  ? should_fail+0x22d/0xd01
[  213.479635] 0 pages cma reserved
[  213.483605]  ? zap_class+0x640/0x640
[  213.489240] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  213.492576]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  213.496439] syz-executor2 cpuset=syz2 mems_allowed=0
[  213.499799]  ? __lock_acquire+0x62f/0x4c20
[  213.528386]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  213.533481]  ? should_fail+0x22d/0xd01
[  213.537414]  ? mark_held_locks+0x130/0x130
[  213.541656]  ? mark_held_locks+0x130/0x130
[  213.545896]  ? lock_downgrade+0x900/0x900
[  213.550061]  ? zap_class+0x640/0x640
[  213.553776]  ? zap_class+0x640/0x640
[  213.557490]  ? zap_class+0x640/0x640
[  213.561200]  ? do_raw_spin_unlock+0xa7/0x330
[  213.565611]  ? trace_hardirqs_on+0x310/0x310
[  213.570023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.575560]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.581096]  ? check_preemption_disabled+0x48/0x280
[  213.586121]  ? __lock_is_held+0xb5/0x140
[  213.590188]  __alloc_pages_nodemask+0xad8/0xea0
[  213.594855]  ? zap_class+0x640/0x640
[  213.598587]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  213.603616]  ? find_held_lock+0x36/0x1c0
[  213.607691]  ? ____cache_alloc_node+0x1c7/0x1e0
[  213.612363]  ? lock_downgrade+0x900/0x900
[  213.616521]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.622067]  cache_grow_begin+0xa5/0x8c0
[  213.626131]  ? do_raw_spin_unlock+0xa7/0x330
[  213.630550]  fallback_alloc+0x204/0x2e0
[  213.634544]  ____cache_alloc_node+0x1c7/0x1e0
[  213.639045]  kmem_cache_alloc_node+0xe3/0x730
[  213.643559]  ? lockdep_hardirqs_on+0x296/0x5b0
[  213.648151]  __alloc_skb+0x119/0x770
[  213.651862]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  213.657257]  ? netdev_alloc_frag+0x1f0/0x1f0
[  213.661669]  ? vprintk_default+0x28/0x30
[  213.665733]  ? vprintk_func+0x85/0x181
[  213.669641]  ? printk+0xa7/0xcf
[  213.672926]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  213.677716]  new_skb+0x26/0x1c0
[  213.680995]  aoecmd_cfg+0x279/0x7f0
[  213.684624]  ? find_held_lock+0x36/0x1c0
[  213.688693]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  213.693021]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.698574]  ? __lock_is_held+0xb5/0x140
[  213.702649]  discover_timer+0x50/0x60
[  213.706448]  call_timer_fn+0x272/0x920
[  213.710339]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  213.715182]  ? process_timeout+0x40/0x40
[  213.719253]  ? mark_held_locks+0xc7/0x130
[  213.723406]  ? _raw_spin_unlock_irq+0x27/0x80
[  213.727902]  ? _raw_spin_unlock_irq+0x27/0x80
[  213.732412]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  213.737259]  ? lockdep_hardirqs_on+0x296/0x5b0
[  213.741848]  ? trace_hardirqs_on+0xbd/0x310
[  213.746176]  ? kasan_check_read+0x11/0x20
[  213.750323]  ? __run_timers+0x7da/0xc70
[  213.754297]  ? trace_hardirqs_off_caller+0x310/0x310
[  213.759417]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  213.764260]  __run_timers+0x7e5/0xc70
[  213.768071]  ? timer_fixup_init+0x70/0x70
[  213.772223]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  213.777241]  ? zap_class+0x640/0x640
[  213.780965]  ? print_usage_bug+0xc0/0xc0
[  213.785033]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  213.790235]  ? find_held_lock+0x36/0x1c0
[  213.794328]  ? zap_class+0x640/0x640
[  213.798059]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.803597]  ? check_preemption_disabled+0x48/0x280
[  213.808627]  ? __lock_is_held+0xb5/0x140
[  213.812694]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.818235]  ? check_preemption_disabled+0x48/0x280
[  213.823260]  run_timer_softirq+0x52/0xb0
[  213.827324]  ? rcu_read_lock_sched_held+0x14f/0x180
[  213.832343]  __do_softirq+0x308/0xb7e
[  213.836151]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  213.840644]  ? lock_downgrade+0x900/0x900
[  213.844794]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  213.849907]  ? pvclock_read_flags+0x160/0x160
[  213.854409]  ? lapic_next_event+0x5a/0x90
[  213.858576]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.864118]  ? kvm_clock_read+0x18/0x30
[  213.868119]  ? kvm_sched_clock_read+0x9/0x20
[  213.872530]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  213.878069]  ? check_preemption_disabled+0x48/0x280
[  213.883093]  irq_exit+0x17f/0x1c0
[  213.886549]  smp_apic_timer_interrupt+0x1cb/0x760
[  213.891395]  ? smp_call_function_single_interrupt+0x159/0x650
[  213.897283]  ? smp_call_function_single_interrupt+0x650/0x650
[  213.903169]  ? interrupt_entry+0xb5/0xc0
[  213.907263]  ? trace_hardirqs_off_caller+0xbb/0x310
[  213.912295]  ? trace_hardirqs_off_caller+0xbb/0x310
[  213.917312]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  213.922159]  ? trace_hardirqs_on_caller+0x310/0x310
[  213.927222]  ? trace_hardirqs_on_caller+0x310/0x310
[  213.932238]  ? task_prio+0x50/0x50
[  213.935780]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  213.941317]  ? check_preemption_disabled+0x48/0x280
[  213.946339]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  213.951192]  apic_timer_interrupt+0xf/0x20
[  213.955423]  </IRQ>
[  213.957663] RIP: 0010:dump_stack+0x358/0x39d
[  213.962074] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  213.980982] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  213.988687] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  213.995949] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  214.003218] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  214.010486] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  214.017750] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  214.025036]  ? dump_stack+0x34f/0x39d
[  214.028857]  ? dump_stack_print_info.cold.1+0x20/0x20
[  214.034059]  ? mark_held_locks+0x130/0x130
[  214.038299]  ? mark_held_locks+0x130/0x130
[  214.042537]  dump_header+0x27b/0xf72
[  214.046263]  ? pagefault_out_of_memory+0x197/0x197
[  214.051198]  ? __lock_acquire+0x62f/0x4c20
[  214.055438]  ? percpu_ref_get_many+0x240/0x240
[  214.060022]  ? print_usage_bug+0xc0/0xc0
[  214.064092]  ? zap_class+0x640/0x640
[  214.067810]  ? print_usage_bug+0xc0/0xc0
[  214.071890]  ? print_usage_bug+0xc0/0xc0
[  214.075957]  ? zap_class+0x640/0x640
[  214.079678]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  214.085219]  ? find_held_lock+0x36/0x1c0
[  214.089290]  ? mark_held_locks+0xc7/0x130
[  214.093443]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  214.098543]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  214.103650]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  214.108237]  ? trace_hardirqs_on+0xbd/0x310
[  214.112573]  ? kasan_check_read+0x11/0x20
[  214.116726]  ? ___ratelimit+0x3b4/0x672
[  214.120700]  ? trace_hardirqs_off_caller+0x310/0x310
[  214.125804]  ? trace_hardirqs_on+0x310/0x310
[  214.130212]  ? lock_downgrade+0x900/0x900
[  214.134367]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  214.139477]  ? ___ratelimit+0x3b9/0x672
[  214.143454]  ? idr_get_free+0xf70/0xf70
[  214.147428]  ? find_held_lock+0x36/0x1c0
[  214.151502]  oom_kill_process.cold.27+0x10/0x903
[  214.156268]  ? zap_class+0x640/0x640
[  214.159986]  ? check_preemption_disabled+0x48/0x280
[  214.165012]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  214.169943]  ? kasan_check_read+0x11/0x20
[  214.174094]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  214.179383]  ? oom_evaluate_task+0x540/0x540
[  214.183799]  ? find_held_lock+0x36/0x1c0
[  214.187902]  ? out_of_memory+0x974/0x1430
[  214.192059]  ? lock_downgrade+0x900/0x900
[  214.196205]  ? check_preemption_disabled+0x48/0x280
[  214.201242]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  214.206199]  ? kasan_check_read+0x11/0x20
[  214.210360]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  214.215655]  ? rcu_softirq_qs+0x20/0x20
[  214.219634]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  214.225187]  ? oom_evaluate_task+0x302/0x540
[  214.229599]  out_of_memory+0xa84/0x1430
[  214.233598]  ? oom_killer_disable+0x3a0/0x3a0
[  214.238092]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  214.243030]  ? __ww_mutex_check_waiters+0x160/0x160
[  214.248061]  __alloc_pages_slowpath+0x232c/0x2de0
[  214.252939]  ? warn_alloc+0x120/0x120
[  214.256741]  ? mark_held_locks+0x130/0x130
[  214.261070]  ? find_get_entry+0xaae/0x1120
[  214.265313]  ? filemap_map_pages+0x1a20/0x1a20
[  214.269910]  ? zap_class+0x640/0x640
[  214.273629]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  214.279173]  ? check_preemption_disabled+0x48/0x280
[  214.284212]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  214.289765]  ? should_fail+0x22d/0xd01
[  214.293656]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  214.298765]  ? zap_class+0x640/0x640
[  214.302505]  ? __lock_is_held+0xb5/0x140
[  214.306574]  ? mark_held_locks+0x130/0x130
[  214.310813]  ? lock_release+0xa00/0xa00
[  214.314787]  ? perf_trace_sched_process_exec+0x860/0x860
[  214.320238]  ? xa_load+0x2ba/0x460
[  214.323779]  ? lock_downgrade+0x900/0x900
[  214.327937]  ? __might_sleep+0x95/0x190
[  214.331934]  __alloc_pages_nodemask+0xad8/0xea0
[  214.336638]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  214.341655]  ? __page_cache_alloc+0x191/0x5c0
[  214.346154]  ? xa_load+0x2e1/0x460
[  214.349694]  ? xa_clear_mark+0x40/0x40
[  214.353582]  ? zap_class+0x640/0x640
[  214.357326]  ? zap_class+0x640/0x640
[  214.361051]  ? zap_class+0x640/0x640
[  214.364792]  ? __do_page_cache_readahead+0x663/0x810
[  214.369920]  ? find_held_lock+0x36/0x1c0
[  214.373987]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  214.379551]  alloc_pages_current+0x173/0x350
[  214.383966]  __page_cache_alloc+0x38c/0x5c0
[  214.388302]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  214.393232]  ? kasan_check_read+0x11/0x20
[  214.397399]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  214.402674]  ? generic_perform_write+0x6a0/0x6a0
[  214.407430]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  214.412974]  ? check_preemption_disabled+0x48/0x280
[  214.417998]  filemap_fault+0x1595/0x25f0
[  214.422070]  ? __lock_page_or_retry+0xa00/0xa00
[  214.426755]  ? mark_held_locks+0x130/0x130
[  214.431127]  ? filemap_map_pages+0xd6b/0x1a20
[  214.435627]  ? lock_downgrade+0x900/0x900
[  214.439775]  ? check_preemption_disabled+0x48/0x280
[  214.444797]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  214.449738]  ? kasan_check_read+0x11/0x20
[  214.453888]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  214.459163]  ? rcu_softirq_qs+0x20/0x20
[  214.463157]  ? filemap_map_pages+0xd92/0x1a20
[  214.467696]  ? find_get_entries_tag+0x1400/0x1400
[  214.472567]  ? debug_object_destroy+0x2b0/0x2b0
[  214.477238]  ? lock_pi_update_atomic+0x150/0x150
[  214.481993]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  214.487560]  ? lock_acquire+0x1ed/0x520
[  214.491543]  ? ext4_filemap_fault+0x7a/0xad
[  214.495896]  ? lock_release+0xa00/0xa00
[  214.499877]  ? perf_trace_sched_process_exec+0x860/0x860
[  214.505347]  ? print_usage_bug+0xc0/0xc0
[  214.509413]  ? print_usage_bug+0xc0/0xc0
[  214.513488]  ? down_read+0x8d/0x120
[  214.517113]  ? ext4_filemap_fault+0x7a/0xad
[  214.521439]  ? __down_interruptible+0x700/0x700
[  214.526117]  ext4_filemap_fault+0x82/0xad
[  214.530265]  __do_fault+0x100/0x6b0
[  214.533897]  ? find_held_lock+0x36/0x1c0
[  214.537962]  ? pmd_devmap_trans_unstable+0x220/0x220
[  214.543071]  ? mark_held_locks+0x130/0x130
[  214.547311]  ? mark_held_locks+0x130/0x130
[  214.551562]  ? _raw_spin_unlock_irq+0x27/0x80
[  214.556071]  ? _raw_spin_unlock_irq+0x27/0x80
[  214.560571]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  214.565698]  ? kasan_check_read+0x11/0x20
[  214.569888]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  214.575429]  __handle_mm_fault+0x3ea0/0x5be0
[  214.579845]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  214.584696]  ? finish_task_switch+0x1f4/0x910
[  214.589190]  ? finish_task_switch+0x1b4/0x910
[  214.593703]  ? __switch_to_asm+0x34/0x70
[  214.597769]  ? preempt_notifier_register+0x200/0x200
[  214.602875]  ? __switch_to_asm+0x34/0x70
[  214.606939]  ? __switch_to_asm+0x34/0x70
[  214.611018]  ? zap_class+0x640/0x640
[  214.614729]  ? zap_class+0x640/0x640
[  214.618440]  ? __x64_sys_futex+0x53e/0x6a0
[  214.622691]  ? find_held_lock+0x36/0x1c0
[  214.626787]  ? handle_mm_fault+0x42a/0xc70
[  214.631026]  ? lock_downgrade+0x900/0x900
[  214.635177]  ? check_preemption_disabled+0x48/0x280
[  214.640213]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  214.645152]  ? kasan_check_read+0x11/0x20
[  214.649322]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  214.654595]  ? rcu_softirq_qs+0x20/0x20
[  214.658570]  ? trace_hardirqs_off_caller+0x310/0x310
[  214.663679]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  214.669225]  ? check_preemption_disabled+0x48/0x280
[  214.674251]  handle_mm_fault+0x54f/0xc70
[  214.678345]  ? __handle_mm_fault+0x5be0/0x5be0
[  214.682933]  ? find_vma+0x34/0x190
[  214.686477]  __do_page_fault+0x5e8/0xe60
[  214.690539]  ? trace_hardirqs_off+0xb8/0x310
[  214.694955]  do_page_fault+0xf2/0x7e0
[  214.698753]  ? vmalloc_sync_all+0x30/0x30
[  214.702904]  ? error_entry+0x70/0xd0
[  214.706636]  ? trace_hardirqs_off_caller+0xbb/0x310
[  214.711665]  ? trace_hardirqs_on_caller+0xc0/0x310
[  214.716594]  ? syscall_return_slowpath+0x5e0/0x5e0
[  214.721522]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  214.726364]  ? trace_hardirqs_on_caller+0x310/0x310
[  214.731387]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  214.736841]  ? prepare_exit_to_usermode+0x291/0x3b0
[  214.741877]  ? page_fault+0x8/0x30
[  214.745426]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  214.750278]  ? page_fault+0x8/0x30
[  214.753817]  page_fault+0x1e/0x30
[  214.757271] RIP: 0033:0x40f9c0
[  214.760474] Code: Bad RIP value.
[  214.763835] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  214.769204] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  214.776471] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  214.783741] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  214.791009] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  214.798275] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  214.805570] CPU: 0 PID: 8593 Comm: syz-executor2 Not tainted 4.20.0-rc3+ #88
[  214.805633] aoe: skb alloc failure
[  214.812763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  214.812772] Call Trace:
[  214.816393] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  214.825669]  dump_stack+0x244/0x39d
[  214.828230] syz-fuzzer cpuset=/ mems_allowed=0
[  214.838460]  ? dump_stack_print_info.cold.1+0x20/0x20
[  214.851836]  warn_alloc.cold.116+0xb7/0x1bd
[  214.856258]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  214.861107]  ? lock_downgrade+0x900/0x900
[  214.865267]  ? trace_hardirqs_off+0xb8/0x310
[  214.869701]  ? trace_hardirqs_off+0xb8/0x310
[  214.874122]  __alloc_pages_slowpath+0x2651/0x2de0
[  214.878998]  ? warn_alloc+0x120/0x120
[  214.882805]  ? warn_alloc+0x120/0x120
[  214.886629]  ? dev_hard_start_xmit+0x42c/0xc80
[  214.891215]  ? warn_alloc+0x120/0x120
[  214.895023]  ? print_usage_bug+0xc0/0xc0
[  214.899087]  ? find_held_lock+0x36/0x1c0
[  214.903156]  ? print_usage_bug+0xc0/0xc0
[  214.907245]  ? cpuacct_charge+0x265/0x440
[  214.911398]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  214.916944]  ? should_fail+0x22d/0xd01
[  214.920830]  ? find_held_lock+0x36/0x1c0
[  214.924905]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  214.930029]  ? __lock_acquire+0x62f/0x4c20
[  214.934273]  ? should_fail+0x22d/0xd01
[  214.938193]  ? mark_held_locks+0x130/0x130
[  214.942432]  ? mark_held_locks+0x130/0x130
[  214.946681]  ? __lock_is_held+0xb5/0x140
[  214.950751]  ? zap_class+0x640/0x640
[  214.954466]  ? update_curr+0x344/0xbd0
[  214.958362]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  214.963910]  ? check_preemption_disabled+0x48/0x280
[  214.968942]  ? __lock_is_held+0xb5/0x140
[  214.973017]  __alloc_pages_nodemask+0xad8/0xea0
[  214.977702]  ? zap_class+0x640/0x640
[  214.981421]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  214.986448]  ? find_held_lock+0x36/0x1c0
[  214.990523]  ? ____cache_alloc_node+0x1c7/0x1e0
[  214.995278]  ? lock_downgrade+0x900/0x900
[  214.999455]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  215.005026]  cache_grow_begin+0xa5/0x8c0
[  215.009099]  ? do_raw_spin_unlock+0xa7/0x330
[  215.013530]  fallback_alloc+0x204/0x2e0
[  215.017516]  ____cache_alloc_node+0x1c7/0x1e0
[  215.022017]  kmem_cache_alloc+0x1f8/0x730
[  215.026182]  skb_clone+0x1bb/0x500
[  215.029730]  ? skb_split+0x11e0/0x11e0
[  215.033620]  ? kasan_check_read+0x11/0x20
[  215.037771]  ? __schedule+0x168a/0x21d0
[  215.041748]  ? trace_hardirqs_off_caller+0x310/0x310
[  215.046858]  ? lock_pin_lock+0x350/0x350
[  215.050951]  bpf_clone_redirect+0xb9/0x490
[  215.055188]  ? __schedule+0x168a/0x21d0
[  215.059174]  bpf_prog_8bbddced5dd14994+0xa5e/0x1000
[  215.064196]  ? __sched_text_start+0x8/0x8
[  215.068350]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  215.073119]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  215.077718]  ? retint_kernel+0x2d/0x2d
[  215.081616]  ? find_held_lock+0x36/0x1c0
[  215.085692]  ? lock_acquire+0x1ed/0x520
[  215.089667]  ? bpf_test_run+0x3cb/0x780
[  215.093644]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  215.099190]  ? check_preemption_disabled+0x48/0x280
[  215.104214]  ? kasan_check_read+0x11/0x20
[  215.108362]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  215.113642]  ? rcu_softirq_qs+0x20/0x20
[  215.117620]  ? preempt_schedule+0x4d/0x60
[  215.121771]  ? ___preempt_schedule+0x16/0x18
[  215.126194]  ? bpf_test_run+0x25d/0x780
[  215.130183]  ? netlink_diag_dump+0x2a0/0x2a0
[  215.134606]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  215.139391]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  215.144235]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  215.149771]  ? fput+0x130/0x1a0
[  215.153057]  ? __bpf_prog_get+0x9b/0x290
[  215.157123]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  215.161970]  ? bpf_prog_test_run+0x130/0x1a0
[  215.166385]  ? __x64_sys_bpf+0x3d8/0x520
[  215.170448]  ? bpf_prog_get+0x20/0x20
[  215.174308]  ? do_syscall_64+0x1b9/0x820
[  215.178370]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  215.183738]  ? syscall_return_slowpath+0x5e0/0x5e0
[  215.188670]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  215.193517]  ? trace_hardirqs_on_caller+0x310/0x310
[  215.198539]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  215.203559]  ? prepare_exit_to_usermode+0x291/0x3b0
[  215.208598]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  215.213450]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  215.218828] warn_alloc_show_mem: 1 callbacks suppressed
[  215.218840] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  215.218842] Mem-Info:
[  215.218892] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  215.218892]  active_file:12 inactive_file:14 isolated_file:0
[  215.218892]  unevictable:0 dirty:0 writeback:0 unstable:0
[  215.218892]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  215.218892]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  215.218892]  free:13757 free_pcp:113 free_cma:0
[  215.224219] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  215.231155] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  215.233552] Call Trace:
[  215.266588] 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
[  215.275945]  <IRQ>
[  215.303766] lowmem_reserve[]: 0 2818 6321 6321
[  215.306364]  dump_stack+0x244/0x39d
[  215.332448] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  215.334608]  ? dump_stack_print_info.cold.1+0x20/0x20
[  215.339161] lowmem_reserve[]: 0 0 3503 3503
[  215.342788]  warn_alloc.cold.116+0xb7/0x1bd
[  215.370254] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  215.375454]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  215.379762] lowmem_reserve[]: 0 0 0 0
[  215.384081]  ? lock_downgrade+0x900/0x900
[  215.413111] 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
[  215.417949]  ? trace_hardirqs_off+0xb8/0x310
[  215.421717] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  215.425860]  ? trace_hardirqs_off+0xb8/0x310
[  215.439369] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  215.443794]  __alloc_pages_slowpath+0x2651/0x2de0
[  215.459297] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  215.463714]  ? warn_alloc+0x120/0x120
[  215.478237] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  215.483069]  ? warn_alloc+0x120/0x120
[  215.491885] 4236 total pagecache pages
[  215.495678]  ? warn_alloc+0x120/0x120
[  215.504236] 0 pages in swap cache
[  215.508027]  ? print_usage_bug+0xc0/0xc0
[  215.511898] Swap cache stats: add 0, delete 0, find 0/0
[  215.515692]  ? print_usage_bug+0xc0/0xc0
[  215.519122] Free swap  = 0kB
[  215.523178]  ? ktime_get+0x2c1/0x400
[  215.528541] Total swap = 0kB
[  215.532601]  ? check_preemption_disabled+0x48/0x280
[  215.535588] 1965979 pages RAM
[  215.539292]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  215.542286] 0 pages HighMem/MovableOnly
[  215.547298]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  215.550374] 342854 pages reserved
[  215.550388] 0 pages cma reserved
[  215.554900]  ? should_fail+0x22d/0xd01
[  215.559205] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  215.564391]  ? kasan_check_read+0x11/0x20
[  215.567833] ksoftirqd/0 cpuset=/ mems_allowed=0
[  215.571195]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  215.599243]  ? __lock_acquire+0x62f/0x4c20
[  215.603482]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  215.608584]  ? should_fail+0x22d/0xd01
[  215.612473]  ? print_usage_bug+0xc0/0xc0
[  215.616543]  ? mark_held_locks+0x130/0x130
[  215.620783]  ? mark_held_locks+0x130/0x130
[  215.625024]  ? check_preemption_disabled+0x48/0x280
[  215.630053]  ? zap_class+0x640/0x640
[  215.633769]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  215.638525]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  215.644077]  ? check_preemption_disabled+0x48/0x280
[  215.649105]  ? __lock_is_held+0xb5/0x140
[  215.653202]  __alloc_pages_nodemask+0xad8/0xea0
[  215.657889]  ? zap_class+0x640/0x640
[  215.661624]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  215.666654]  ? find_held_lock+0x36/0x1c0
[  215.670723]  ? ____cache_alloc_node+0x1c7/0x1e0
[  215.675401]  ? lock_downgrade+0x900/0x900
[  215.679560]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  215.685100]  cache_grow_begin+0xa5/0x8c0
[  215.689162]  ? do_raw_spin_unlock+0xa7/0x330
[  215.693591]  fallback_alloc+0x204/0x2e0
[  215.697570]  ____cache_alloc_node+0x1c7/0x1e0
[  215.702069]  kmem_cache_alloc_node+0xe3/0x730
[  215.706570]  ? lockdep_hardirqs_on+0x296/0x5b0
[  215.711161]  __alloc_skb+0x119/0x770
[  215.714880]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  215.720249]  ? netdev_alloc_frag+0x1f0/0x1f0
[  215.724666]  ? vprintk_default+0x28/0x30
[  215.728731]  ? vprintk_func+0x85/0x181
[  215.732619]  ? printk+0xa7/0xcf
[  215.735911]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  215.740681]  new_skb+0x26/0x1c0
[  215.743963]  aoecmd_cfg+0x279/0x7f0
[  215.747589]  ? find_held_lock+0x36/0x1c0
[  215.751653]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  215.755985]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  215.761533]  ? __lock_is_held+0xb5/0x140
[  215.765609]  discover_timer+0x50/0x60
[  215.769408]  call_timer_fn+0x272/0x920
[  215.773298]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  215.778149]  ? process_timeout+0x40/0x40
[  215.782223]  ? mark_held_locks+0xc7/0x130
[  215.786410]  ? _raw_spin_unlock_irq+0x27/0x80
[  215.790931]  ? _raw_spin_unlock_irq+0x27/0x80
[  215.795422]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  215.800263]  ? lockdep_hardirqs_on+0x296/0x5b0
[  215.804848]  ? trace_hardirqs_on+0xbd/0x310
[  215.809180]  ? kasan_check_read+0x11/0x20
[  215.813357]  ? __run_timers+0x7da/0xc70
[  215.817333]  ? trace_hardirqs_off_caller+0x310/0x310
[  215.822449]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  215.827307]  __run_timers+0x7e5/0xc70
[  215.831134]  ? timer_fixup_init+0x70/0x70
[  215.835288]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  215.840319]  ? zap_class+0x640/0x640
[  215.844052]  ? print_usage_bug+0xc0/0xc0
[  215.848115]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  215.853341]  ? find_held_lock+0x36/0x1c0
[  215.857409]  ? zap_class+0x640/0x640
[  215.861134]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  215.866676]  ? check_preemption_disabled+0x48/0x280
[  215.871705]  ? __lock_is_held+0xb5/0x140
[  215.875765]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  215.881303]  ? check_preemption_disabled+0x48/0x280
[  215.886322]  run_timer_softirq+0x52/0xb0
[  215.890386]  ? rcu_read_lock_sched_held+0x14f/0x180
[  215.895406]  __do_softirq+0x308/0xb7e
[  215.899207]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  215.903702]  ? lock_downgrade+0x900/0x900
[  215.907854]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  215.912977]  ? pvclock_read_flags+0x160/0x160
[  215.917477]  ? lapic_next_event+0x5a/0x90
[  215.921643]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  215.927188]  ? kvm_clock_read+0x18/0x30
[  215.931161]  ? kvm_sched_clock_read+0x9/0x20
[  215.935570]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  215.941109]  ? check_preemption_disabled+0x48/0x280
[  215.946133]  irq_exit+0x17f/0x1c0
[  215.949589]  smp_apic_timer_interrupt+0x1cb/0x760
[  215.954487]  ? smp_call_function_single_interrupt+0x159/0x650
[  215.960374]  ? smp_call_function_single_interrupt+0x650/0x650
[  215.966261]  ? interrupt_entry+0xb5/0xc0
[  215.970323]  ? trace_hardirqs_off_caller+0xbb/0x310
[  215.975337]  ? trace_hardirqs_off_caller+0xbb/0x310
[  215.980381]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  215.985223]  ? trace_hardirqs_on_caller+0x310/0x310
[  215.990243]  ? trace_hardirqs_on_caller+0x310/0x310
[  215.995267]  ? task_prio+0x50/0x50
[  215.998806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  216.004362]  ? check_preemption_disabled+0x48/0x280
[  216.009406]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  216.014261]  apic_timer_interrupt+0xf/0x20
[  216.018495]  </IRQ>
[  216.020736] RIP: 0010:dump_stack+0x358/0x39d
[  216.025146] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  216.044047] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  216.051762] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  216.059028] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  216.066296] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  216.073561] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  216.080826] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  216.088112]  ? dump_stack+0x34f/0x39d
[  216.091926]  ? dump_stack_print_info.cold.1+0x20/0x20
[  216.097118]  ? mark_held_locks+0x130/0x130
[  216.101353]  ? mark_held_locks+0x130/0x130
[  216.105597]  dump_header+0x27b/0xf72
[  216.109326]  ? pagefault_out_of_memory+0x197/0x197
[  216.114264]  ? __lock_acquire+0x62f/0x4c20
[  216.118503]  ? percpu_ref_get_many+0x240/0x240
[  216.123090]  ? print_usage_bug+0xc0/0xc0
[  216.127162]  ? zap_class+0x640/0x640
[  216.130900]  ? print_usage_bug+0xc0/0xc0
[  216.134976]  ? print_usage_bug+0xc0/0xc0
[  216.139041]  ? zap_class+0x640/0x640
[  216.142797]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  216.148357]  ? find_held_lock+0x36/0x1c0
[  216.152431]  ? mark_held_locks+0xc7/0x130
[  216.156580]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  216.161695]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  216.166797]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  216.171398]  ? trace_hardirqs_on+0xbd/0x310
[  216.175721]  ? kasan_check_read+0x11/0x20
[  216.179873]  ? ___ratelimit+0x3b4/0x672
[  216.183850]  ? trace_hardirqs_off_caller+0x310/0x310
[  216.188963]  ? trace_hardirqs_on+0x310/0x310
[  216.193369]  ? lock_downgrade+0x900/0x900
[  216.197523]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  216.202628]  ? ___ratelimit+0x3b9/0x672
[  216.206602]  ? idr_get_free+0xf70/0xf70
[  216.210592]  ? find_held_lock+0x36/0x1c0
[  216.214678]  oom_kill_process.cold.27+0x10/0x903
[  216.219446]  ? zap_class+0x640/0x640
[  216.223159]  ? check_preemption_disabled+0x48/0x280
[  216.228182]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  216.233110]  ? kasan_check_read+0x11/0x20
[  216.237260]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  216.242539]  ? oom_evaluate_task+0x540/0x540
[  216.246959]  ? find_held_lock+0x36/0x1c0
[  216.251041]  ? out_of_memory+0x974/0x1430
[  216.255222]  ? lock_downgrade+0x900/0x900
[  216.259407]  ? check_preemption_disabled+0x48/0x280
[  216.264452]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  216.269398]  ? kasan_check_read+0x11/0x20
[  216.273542]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  216.278819]  ? rcu_softirq_qs+0x20/0x20
[  216.282797]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  216.288333]  ? oom_evaluate_task+0x302/0x540
[  216.292764]  out_of_memory+0xa84/0x1430
[  216.296753]  ? oom_killer_disable+0x3a0/0x3a0
[  216.301248]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  216.306183]  ? __ww_mutex_check_waiters+0x160/0x160
[  216.311214]  __alloc_pages_slowpath+0x232c/0x2de0
[  216.316085]  ? warn_alloc+0x120/0x120
[  216.319892]  ? mark_held_locks+0x130/0x130
[  216.324133]  ? find_get_entry+0xaae/0x1120
[  216.328402]  ? filemap_map_pages+0x1a20/0x1a20
[  216.332990]  ? zap_class+0x640/0x640
[  216.336708]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  216.342250]  ? check_preemption_disabled+0x48/0x280
[  216.347297]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  216.352848]  ? should_fail+0x22d/0xd01
[  216.356748]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  216.361851]  ? zap_class+0x640/0x640
[  216.365615]  ? __lock_is_held+0xb5/0x140
[  216.369697]  ? mark_held_locks+0x130/0x130
[  216.373940]  ? lock_release+0xa00/0xa00
[  216.377948]  ? perf_trace_sched_process_exec+0x860/0x860
[  216.383411]  ? xa_load+0x2ba/0x460
[  216.386958]  ? lock_downgrade+0x900/0x900
[  216.391113]  ? __might_sleep+0x95/0x190
[  216.395091]  __alloc_pages_nodemask+0xad8/0xea0
[  216.399766]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  216.404786]  ? __page_cache_alloc+0x191/0x5c0
[  216.409303]  ? xa_load+0x2e1/0x460
[  216.412843]  ? xa_clear_mark+0x40/0x40
[  216.416741]  ? zap_class+0x640/0x640
[  216.420464]  ? zap_class+0x640/0x640
[  216.424180]  ? zap_class+0x640/0x640
[  216.427905]  ? __do_page_cache_readahead+0x663/0x810
[  216.433217]  ? find_held_lock+0x36/0x1c0
[  216.437298]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  216.442883]  alloc_pages_current+0x173/0x350
[  216.447320]  __page_cache_alloc+0x38c/0x5c0
[  216.451688]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  216.456647]  ? kasan_check_read+0x11/0x20
[  216.460793]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  216.466078]  ? generic_perform_write+0x6a0/0x6a0
[  216.470837]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  216.476388]  ? check_preemption_disabled+0x48/0x280
[  216.481415]  filemap_fault+0x1595/0x25f0
[  216.485491]  ? __lock_page_or_retry+0xa00/0xa00
[  216.490164]  ? mark_held_locks+0x130/0x130
[  216.494414]  ? filemap_map_pages+0xd6b/0x1a20
[  216.498915]  ? lock_downgrade+0x900/0x900
[  216.503076]  ? check_preemption_disabled+0x48/0x280
[  216.508100]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  216.513031]  ? kasan_check_read+0x11/0x20
[  216.517181]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  216.522462]  ? rcu_softirq_qs+0x20/0x20
[  216.526451]  ? filemap_map_pages+0xd92/0x1a20
[  216.530959]  ? find_get_entries_tag+0x1400/0x1400
[  216.535805]  ? debug_object_destroy+0x2b0/0x2b0
[  216.540475]  ? lock_pi_update_atomic+0x150/0x150
[  216.545231]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  216.550781]  ? lock_acquire+0x1ed/0x520
[  216.554752]  ? ext4_filemap_fault+0x7a/0xad
[  216.559085]  ? lock_release+0xa00/0xa00
[  216.563569]  ? perf_trace_sched_process_exec+0x860/0x860
[  216.569021]  ? print_usage_bug+0xc0/0xc0
[  216.573088]  ? print_usage_bug+0xc0/0xc0
[  216.577161]  ? down_read+0x8d/0x120
[  216.580788]  ? ext4_filemap_fault+0x7a/0xad
[  216.585116]  ? __down_interruptible+0x700/0x700
[  216.589792]  ext4_filemap_fault+0x82/0xad
[  216.593956]  __do_fault+0x100/0x6b0
[  216.597580]  ? find_held_lock+0x36/0x1c0
[  216.601644]  ? pmd_devmap_trans_unstable+0x220/0x220
[  216.606772]  ? mark_held_locks+0x130/0x130
[  216.611007]  ? mark_held_locks+0x130/0x130
[  216.615239]  ? _raw_spin_unlock_irq+0x27/0x80
[  216.619729]  ? _raw_spin_unlock_irq+0x27/0x80
[  216.624230]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  216.628814]  ? kasan_check_read+0x11/0x20
[  216.632967]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  216.638508]  __handle_mm_fault+0x3ea0/0x5be0
[  216.642926]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  216.647773]  ? finish_task_switch+0x1f4/0x910
[  216.652268]  ? finish_task_switch+0x1b4/0x910
[  216.656772]  ? __switch_to_asm+0x34/0x70
[  216.660839]  ? preempt_notifier_register+0x200/0x200
[  216.665959]  ? __switch_to_asm+0x34/0x70
[  216.670017]  ? __switch_to_asm+0x34/0x70
[  216.674095]  ? zap_class+0x640/0x640
[  216.677807]  ? zap_class+0x640/0x640
[  216.681525]  ? __x64_sys_futex+0x53e/0x6a0
[  216.685768]  ? find_held_lock+0x36/0x1c0
[  216.689853]  ? handle_mm_fault+0x42a/0xc70
[  216.694096]  ? lock_downgrade+0x900/0x900
[  216.698249]  ? check_preemption_disabled+0x48/0x280
[  216.703265]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  216.708222]  ? kasan_check_read+0x11/0x20
[  216.712369]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  216.717681]  ? rcu_softirq_qs+0x20/0x20
[  216.721681]  ? trace_hardirqs_off_caller+0x310/0x310
[  216.726826]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  216.732368]  ? check_preemption_disabled+0x48/0x280
[  216.737420]  handle_mm_fault+0x54f/0xc70
[  216.741502]  ? __handle_mm_fault+0x5be0/0x5be0
[  216.746093]  ? find_vma+0x34/0x190
[  216.749657]  __do_page_fault+0x5e8/0xe60
[  216.753730]  ? trace_hardirqs_off+0xb8/0x310
[  216.758151]  do_page_fault+0xf2/0x7e0
[  216.761956]  ? vmalloc_sync_all+0x30/0x30
[  216.766103]  ? error_entry+0x70/0xd0
[  216.769816]  ? trace_hardirqs_off_caller+0xbb/0x310
[  216.774829]  ? trace_hardirqs_on_caller+0xc0/0x310
[  216.779761]  ? syscall_return_slowpath+0x5e0/0x5e0
[  216.784689]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  216.789534]  ? trace_hardirqs_on_caller+0x310/0x310
[  216.794553]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  216.800013]  ? prepare_exit_to_usermode+0x291/0x3b0
[  216.805041]  ? page_fault+0x8/0x30
[  216.808586]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  216.813460]  ? page_fault+0x8/0x30
[  216.817031]  page_fault+0x1e/0x30
[  216.820480] RIP: 0033:0x40f9c0
[  216.823682] Code: Bad RIP value.
[  216.827048] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  216.832408] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  216.839676] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  216.846943] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  216.854207] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  216.861475] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  216.868769] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  216.868835] aoe: skb alloc failure
[  216.875530] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  216.875535] Call Trace:
[  216.875555]  dump_stack+0x244/0x39d
[  216.875580]  ? dump_stack_print_info.cold.1+0x20/0x20
[  216.879131] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  216.888458]  warn_alloc.cold.116+0xb7/0x1bd
[  216.891012] syz-fuzzer cpuset=/ mems_allowed=0
[  216.894635]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  216.923717]  ? lock_downgrade+0x900/0x900
[  216.927889]  ? trace_hardirqs_off+0xb8/0x310
[  216.932305]  ? trace_hardirqs_off+0xb8/0x310
[  216.936724]  __alloc_pages_slowpath+0x2651/0x2de0
[  216.941593]  ? warn_alloc+0x120/0x120
[  216.945397]  ? warn_alloc+0x120/0x120
[  216.949202]  ? warn_alloc+0x120/0x120
[  216.953005]  ? print_usage_bug+0xc0/0xc0
[  216.957069]  ? print_usage_bug+0xc0/0xc0
[  216.961134]  ? print_usage_bug+0xc0/0xc0
[  216.965195]  ? find_held_lock+0x36/0x1c0
[  216.969265]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  216.974804]  ? should_fail+0x22d/0xd01
[  216.978690]  ? __lock_acquire+0x62f/0x4c20
[  216.982961]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  216.988068]  ? __lock_acquire+0x62f/0x4c20
[  216.992310]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  216.997413]  ? __lock_acquire+0x62f/0x4c20
[  217.001643]  ? should_fail+0x22d/0xd01
[  217.005541]  ? mark_held_locks+0x130/0x130
[  217.009799]  ? mark_held_locks+0x130/0x130
[  217.014037]  ? lock_downgrade+0x900/0x900
[  217.018186]  ? zap_class+0x640/0x640
[  217.021908]  ? print_usage_bug+0xc0/0xc0
[  217.025974]  ? trace_hardirqs_off+0xb8/0x310
[  217.030397]  ? kasan_check_read+0x11/0x20
[  217.034546]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.040086]  ? check_preemption_disabled+0x48/0x280
[  217.045116]  ? __lock_is_held+0xb5/0x140
[  217.049182]  __alloc_pages_nodemask+0xad8/0xea0
[  217.053850]  ? zap_class+0x640/0x640
[  217.057577]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  217.062601]  ? find_held_lock+0x36/0x1c0
[  217.066687]  ? ____cache_alloc_node+0x1c7/0x1e0
[  217.071356]  ? lock_downgrade+0x900/0x900
[  217.075508]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.081054]  cache_grow_begin+0xa5/0x8c0
[  217.085114]  ? do_raw_spin_unlock+0xa7/0x330
[  217.089537]  fallback_alloc+0x204/0x2e0
[  217.093517]  ____cache_alloc_node+0x1c7/0x1e0
[  217.098035]  kmem_cache_alloc_node+0xe3/0x730
[  217.102562]  ? ipv6_get_ifaddr+0x42e/0x620
[  217.106801]  __alloc_skb+0x119/0x770
[  217.110549]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  217.115838]  ? netdev_alloc_frag+0x1f0/0x1f0
[  217.120274]  ? lock_downgrade+0x900/0x900
[  217.124444]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.129989]  ? refcount_sub_and_test_checked+0x203/0x310
[  217.135444]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  217.140908]  ? addrconf_rs_timer+0x690/0x690
[  217.145328]  ndisc_alloc_skb+0x144/0x340
[  217.149396]  ndisc_send_rs+0x331/0x6e0
[  217.153298]  addrconf_rs_timer+0x314/0x690
[  217.157552]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  217.161796]  call_timer_fn+0x272/0x920
[  217.165683]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  217.169937]  ? process_timeout+0x40/0x40
[  217.174003]  ? __run_timers+0x7da/0xc70
[  217.177986]  ? _raw_spin_unlock_irq+0x27/0x80
[  217.182479]  ? _raw_spin_unlock_irq+0x27/0x80
[  217.186978]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  217.191215]  ? lockdep_hardirqs_on+0x296/0x5b0
[  217.195808]  ? trace_hardirqs_on+0xbd/0x310
[  217.200133]  ? kasan_check_read+0x11/0x20
[  217.204282]  ? __run_timers+0x7da/0xc70
[  217.208255]  ? trace_hardirqs_off_caller+0x310/0x310
[  217.213383]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  217.217616]  __run_timers+0x7e5/0xc70
[  217.221427]  ? timer_fixup_init+0x70/0x70
[  217.225593]  ? _raw_spin_unlock_irq+0x27/0x80
[  217.230100]  ? _raw_spin_unlock_irq+0x27/0x80
[  217.234596]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  217.239199]  ? trace_hardirqs_on+0xbd/0x310
[  217.243538]  ? kasan_check_read+0x11/0x20
[  217.247690]  ? finish_task_switch+0x1f4/0x910
[  217.252186]  ? trace_hardirqs_off_caller+0x310/0x310
[  217.257293]  ? compat_start_thread+0x80/0x80
[  217.261724]  ? pvclock_read_flags+0x160/0x160
[  217.266221]  ? __switch_to_asm+0x34/0x70
[  217.270285]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.275822]  ? check_preemption_disabled+0x48/0x280
[  217.280847]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  217.286399]  ? rcu_pm_notify+0xc0/0xc0
[  217.290287]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.295837]  ? check_preemption_disabled+0x48/0x280
[  217.300883]  run_timer_softirq+0x52/0xb0
[  217.304943]  ? rcu_read_lock_sched_held+0x14f/0x180
[  217.309958]  __do_softirq+0x308/0xb7e
[  217.313764]  ? trace_hardirqs_on_caller+0xc0/0x310
[  217.318697]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  217.323800]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  217.329247]  ? trace_hardirqs_on+0x310/0x310
[  217.333662]  ? schedule+0x108/0x460
[  217.337297]  ? trace_hardirqs_off+0xb8/0x310
[  217.341739]  ? smpboot_thread_fn+0x68b/0xa00
[  217.346150]  ? trace_hardirqs_on+0x310/0x310
[  217.350561]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  217.356102]  ? check_preemption_disabled+0x48/0x280
[  217.361118]  ? takeover_tasklets+0xa90/0xa90
[  217.365527]  run_ksoftirqd+0x5e/0x100
[  217.369329]  smpboot_thread_fn+0x68b/0xa00
[  217.373565]  ? sort_range+0x30/0x30
[  217.377192]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  217.382296]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  217.387833]  ? __kthread_parkme+0xfb/0x1a0
[  217.392076]  ? sort_range+0x30/0x30
[  217.395701]  kthread+0x35a/0x440
[  217.399075]  ? kthread_stop+0x900/0x900
[  217.403050]  ret_from_fork+0x3a/0x50
[  217.406782] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  217.406788] warn_alloc_show_mem: 1 callbacks suppressed
[  217.406794] Mem-Info:
[  217.413717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  217.419084] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  217.419084]  active_file:12 inactive_file:14 isolated_file:0
[  217.419084]  unevictable:0 dirty:0 writeback:0 unstable:0
[  217.419084]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  217.419084]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  217.419084]  free:13757 free_pcp:113 free_cma:0
[  217.421474] Call Trace:
[  217.430888] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  217.463901]  <IRQ>
[  217.466471] 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
[  217.494313]  dump_stack+0x244/0x39d
[  217.496432] lowmem_reserve[]: 0 2818 6321 6321
[  217.522545]  ? dump_stack_print_info.cold.1+0x20/0x20
[  217.526145] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  217.530729]  warn_alloc.cold.116+0xb7/0x1bd
[  217.535904] lowmem_reserve[]: 0 0 3503 3503
[  217.563407]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  217.567703] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  217.572022]  ? lock_downgrade+0x900/0x900
[  217.576841] lowmem_reserve[]: 0 0 0 0
[  217.605947]  ? trace_hardirqs_off+0xb8/0x310
[  217.610068] 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
[  217.613893]  ? trace_hardirqs_off+0xb8/0x310
[  217.618276] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  217.631797]  __alloc_pages_slowpath+0x2651/0x2de0
[  217.636174] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  217.651708]  ? warn_alloc+0x120/0x120
[  217.656522] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  217.671078]  ? warn_alloc+0x120/0x120
[  217.674858] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  217.683687]  ? __lock_acquire+0x62f/0x4c20
[  217.687461] 4236 total pagecache pages
[  217.696030]  ? warn_alloc+0x120/0x120
[  217.700245] 0 pages in swap cache
[  217.704121]  ? print_usage_bug+0xc0/0xc0
[  217.707904] Swap cache stats: add 0, delete 0, find 0/0
[  217.711350]  ? print_usage_bug+0xc0/0xc0
[  217.715382] Free swap  = 0kB
[  217.715390] Total swap = 0kB
[  217.720749]  ? mark_held_locks+0x130/0x130
[  217.724785] 1965979 pages RAM
[  217.727800]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  217.730789] 0 pages HighMem/MovableOnly
[  217.735016]  ? should_fail+0x22d/0xd01
[  217.738097] 342854 pages reserved
[  217.743630]  ? zap_class+0x640/0x640
[  217.747578] 0 pages cma reserved
[  217.751458]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  217.754969] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  217.758602]  ? __lock_acquire+0x62f/0x4c20
[  217.761998] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  217.767036]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  217.773503] ksoftirqd/0 cpuset=/ mems_allowed=0
[  217.777729]  ? should_fail+0x22d/0xd01
[  217.801667]  ? mark_held_locks+0x130/0x130
[  217.805907]  ? mark_held_locks+0x130/0x130
[  217.810146]  ? lock_downgrade+0x900/0x900
[  217.814296]  ? zap_class+0x640/0x640
[  217.818015]  ? zap_class+0x640/0x640
[  217.821740]  ? zap_class+0x640/0x640
[  217.825453]  ? do_raw_spin_unlock+0xa7/0x330
[  217.829864]  ? trace_hardirqs_on+0x310/0x310
[  217.834280]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.839848]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.845402]  ? check_preemption_disabled+0x48/0x280
[  217.850427]  ? __lock_is_held+0xb5/0x140
[  217.854499]  __alloc_pages_nodemask+0xad8/0xea0
[  217.859171]  ? zap_class+0x640/0x640
[  217.862900]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  217.867928]  ? find_held_lock+0x36/0x1c0
[  217.872001]  ? ____cache_alloc_node+0x1c7/0x1e0
[  217.876674]  ? lock_downgrade+0x900/0x900
[  217.880834]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.886388]  cache_grow_begin+0xa5/0x8c0
[  217.890449]  ? do_raw_spin_unlock+0xa7/0x330
[  217.894875]  fallback_alloc+0x204/0x2e0
[  217.898855]  ____cache_alloc_node+0x1c7/0x1e0
[  217.903381]  kmem_cache_alloc_node+0xe3/0x730
[  217.907888]  ? lockdep_hardirqs_on+0x296/0x5b0
[  217.912486]  __alloc_skb+0x119/0x770
[  217.916196]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  217.921566]  ? netdev_alloc_frag+0x1f0/0x1f0
[  217.925984]  ? vprintk_default+0x28/0x30
[  217.930047]  ? vprintk_func+0x85/0x181
[  217.933937]  ? printk+0xa7/0xcf
[  217.937219]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  217.941988]  new_skb+0x26/0x1c0
[  217.945272]  aoecmd_cfg+0x279/0x7f0
[  217.948908]  ? find_held_lock+0x36/0x1c0
[  217.952974]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  217.957313]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  217.962877]  ? __lock_is_held+0xb5/0x140
[  217.966956]  discover_timer+0x50/0x60
[  217.970755]  call_timer_fn+0x272/0x920
[  217.974642]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  217.979483]  ? process_timeout+0x40/0x40
[  217.983558]  ? mark_held_locks+0xc7/0x130
[  217.987711]  ? _raw_spin_unlock_irq+0x27/0x80
[  217.992203]  ? _raw_spin_unlock_irq+0x27/0x80
[  217.996700]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  218.001541]  ? lockdep_hardirqs_on+0x296/0x5b0
[  218.006128]  ? trace_hardirqs_on+0xbd/0x310
[  218.010448]  ? kasan_check_read+0x11/0x20
[  218.014592]  ? __run_timers+0x7da/0xc70
[  218.018566]  ? trace_hardirqs_off_caller+0x310/0x310
[  218.023682]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  218.028571]  __run_timers+0x7e5/0xc70
[  218.032384]  ? timer_fixup_init+0x70/0x70
[  218.036549]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  218.041565]  ? zap_class+0x640/0x640
[  218.045282]  ? print_usage_bug+0xc0/0xc0
[  218.049348]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  218.054551]  ? find_held_lock+0x36/0x1c0
[  218.058616]  ? zap_class+0x640/0x640
[  218.062353]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.067899]  ? check_preemption_disabled+0x48/0x280
[  218.072929]  ? __lock_is_held+0xb5/0x140
[  218.076991]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.082532]  ? check_preemption_disabled+0x48/0x280
[  218.087554]  run_timer_softirq+0x52/0xb0
[  218.091615]  ? rcu_read_lock_sched_held+0x14f/0x180
[  218.096636]  __do_softirq+0x308/0xb7e
[  218.100442]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  218.104937]  ? lock_downgrade+0x900/0x900
[  218.109092]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  218.114207]  ? pvclock_read_flags+0x160/0x160
[  218.118704]  ? lapic_next_event+0x5a/0x90
[  218.122854]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.128405]  ? kvm_clock_read+0x18/0x30
[  218.132383]  ? kvm_sched_clock_read+0x9/0x20
[  218.136793]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  218.142330]  ? check_preemption_disabled+0x48/0x280
[  218.147356]  irq_exit+0x17f/0x1c0
[  218.150818]  smp_apic_timer_interrupt+0x1cb/0x760
[  218.155661]  ? smp_call_function_single_interrupt+0x159/0x650
[  218.161563]  ? smp_call_function_single_interrupt+0x650/0x650
[  218.167463]  ? interrupt_entry+0xb5/0xc0
[  218.171544]  ? trace_hardirqs_off_caller+0xbb/0x310
[  218.176559]  ? trace_hardirqs_off_caller+0xbb/0x310
[  218.181579]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  218.186424]  ? trace_hardirqs_on_caller+0x310/0x310
[  218.191442]  ? trace_hardirqs_on_caller+0x310/0x310
[  218.196459]  ? task_prio+0x50/0x50
[  218.200002]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.205557]  ? check_preemption_disabled+0x48/0x280
[  218.210578]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  218.215430]  apic_timer_interrupt+0xf/0x20
[  218.219663]  </IRQ>
[  218.221909] RIP: 0010:dump_stack+0x358/0x39d
[  218.226323] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  218.245225] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  218.252934] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  218.260199] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  218.267461] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  218.274724] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  218.281987] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  218.289272]  ? dump_stack+0x34f/0x39d
[  218.293088]  ? dump_stack_print_info.cold.1+0x20/0x20
[  218.298282]  ? mark_held_locks+0x130/0x130
[  218.302513]  ? mark_held_locks+0x130/0x130
[  218.306772]  dump_header+0x27b/0xf72
[  218.310496]  ? pagefault_out_of_memory+0x197/0x197
[  218.315431]  ? __lock_acquire+0x62f/0x4c20
[  218.319667]  ? percpu_ref_get_many+0x240/0x240
[  218.324258]  ? print_usage_bug+0xc0/0xc0
[  218.328323]  ? zap_class+0x640/0x640
[  218.332037]  ? print_usage_bug+0xc0/0xc0
[  218.336097]  ? print_usage_bug+0xc0/0xc0
[  218.340175]  ? zap_class+0x640/0x640
[  218.343913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.349470]  ? find_held_lock+0x36/0x1c0
[  218.353538]  ? mark_held_locks+0xc7/0x130
[  218.357691]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  218.362815]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  218.367934]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  218.372522]  ? trace_hardirqs_on+0xbd/0x310
[  218.376843]  ? kasan_check_read+0x11/0x20
[  218.381014]  ? ___ratelimit+0x3b4/0x672
[  218.384989]  ? trace_hardirqs_off_caller+0x310/0x310
[  218.390093]  ? trace_hardirqs_on+0x310/0x310
[  218.394522]  ? lock_downgrade+0x900/0x900
[  218.398689]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  218.403791]  ? ___ratelimit+0x3b9/0x672
[  218.407769]  ? idr_get_free+0xf70/0xf70
[  218.411745]  ? find_held_lock+0x36/0x1c0
[  218.415813]  oom_kill_process.cold.27+0x10/0x903
[  218.420570]  ? zap_class+0x640/0x640
[  218.424284]  ? check_preemption_disabled+0x48/0x280
[  218.429320]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  218.434473]  ? kasan_check_read+0x11/0x20
[  218.438624]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  218.443908]  ? oom_evaluate_task+0x540/0x540
[  218.448324]  ? find_held_lock+0x36/0x1c0
[  218.452407]  ? out_of_memory+0x974/0x1430
[  218.456558]  ? lock_downgrade+0x900/0x900
[  218.460710]  ? check_preemption_disabled+0x48/0x280
[  218.466159]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  218.471085]  ? kasan_check_read+0x11/0x20
[  218.475231]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  218.480508]  ? rcu_softirq_qs+0x20/0x20
[  218.484488]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  218.490022]  ? oom_evaluate_task+0x302/0x540
[  218.494433]  out_of_memory+0xa84/0x1430
[  218.498423]  ? oom_killer_disable+0x3a0/0x3a0
[  218.502921]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  218.507858]  ? __ww_mutex_check_waiters+0x160/0x160
[  218.512902]  __alloc_pages_slowpath+0x232c/0x2de0
[  218.517779]  ? warn_alloc+0x120/0x120
[  218.521582]  ? mark_held_locks+0x130/0x130
[  218.525822]  ? find_get_entry+0xaae/0x1120
[  218.530067]  ? filemap_map_pages+0x1a20/0x1a20
[  218.534659]  ? zap_class+0x640/0x640
[  218.538387]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.543939]  ? check_preemption_disabled+0x48/0x280
[  218.548956]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  218.554495]  ? should_fail+0x22d/0xd01
[  218.558395]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  218.564007]  ? zap_class+0x640/0x640
[  218.567748]  ? __lock_is_held+0xb5/0x140
[  218.571821]  ? mark_held_locks+0x130/0x130
[  218.576060]  ? lock_release+0xa00/0xa00
[  218.580036]  ? perf_trace_sched_process_exec+0x860/0x860
[  218.585490]  ? xa_load+0x2ba/0x460
[  218.589035]  ? lock_downgrade+0x900/0x900
[  218.593192]  ? __might_sleep+0x95/0x190
[  218.597173]  __alloc_pages_nodemask+0xad8/0xea0
[  218.601873]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  218.606898]  ? __page_cache_alloc+0x191/0x5c0
[  218.611399]  ? xa_load+0x2e1/0x460
[  218.614957]  ? xa_clear_mark+0x40/0x40
[  218.618850]  ? zap_class+0x640/0x640
[  218.622578]  ? zap_class+0x640/0x640
[  218.626289]  ? zap_class+0x640/0x640
[  218.630001]  ? __do_page_cache_readahead+0x663/0x810
[  218.635107]  ? find_held_lock+0x36/0x1c0
[  218.639172]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  218.644718]  alloc_pages_current+0x173/0x350
[  218.649132]  __page_cache_alloc+0x38c/0x5c0
[  218.653487]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  218.658461]  ? kasan_check_read+0x11/0x20
[  218.662610]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  218.667895]  ? generic_perform_write+0x6a0/0x6a0
[  218.672653]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  218.678192]  ? check_preemption_disabled+0x48/0x280
[  218.683218]  filemap_fault+0x1595/0x25f0
[  218.687310]  ? __lock_page_or_retry+0xa00/0xa00
[  218.691980]  ? mark_held_locks+0x130/0x130
[  218.696222]  ? filemap_map_pages+0xd6b/0x1a20
[  218.700717]  ? lock_downgrade+0x900/0x900
[  218.704864]  ? check_preemption_disabled+0x48/0x280
[  218.709901]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  218.714832]  ? kasan_check_read+0x11/0x20
[  218.718986]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  218.724264]  ? rcu_softirq_qs+0x20/0x20
[  218.728253]  ? filemap_map_pages+0xd92/0x1a20
[  218.732761]  ? find_get_entries_tag+0x1400/0x1400
[  218.737607]  ? debug_object_destroy+0x2b0/0x2b0
[  218.742279]  ? lock_pi_update_atomic+0x150/0x150
[  218.747035]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  218.752590]  ? lock_acquire+0x1ed/0x520
[  218.756568]  ? ext4_filemap_fault+0x7a/0xad
[  218.760903]  ? lock_release+0xa00/0xa00
[  218.764889]  ? perf_trace_sched_process_exec+0x860/0x860
[  218.770345]  ? print_usage_bug+0xc0/0xc0
[  218.774416]  ? print_usage_bug+0xc0/0xc0
[  218.778494]  ? down_read+0x8d/0x120
[  218.782124]  ? ext4_filemap_fault+0x7a/0xad
[  218.786449]  ? __down_interruptible+0x700/0x700
[  218.791129]  ext4_filemap_fault+0x82/0xad
[  218.795279]  __do_fault+0x100/0x6b0
[  218.798907]  ? find_held_lock+0x36/0x1c0
[  218.802977]  ? pmd_devmap_trans_unstable+0x220/0x220
[  218.808087]  ? mark_held_locks+0x130/0x130
[  218.812322]  ? mark_held_locks+0x130/0x130
[  218.816556]  ? _raw_spin_unlock_irq+0x27/0x80
[  218.821048]  ? _raw_spin_unlock_irq+0x27/0x80
[  218.825544]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  218.830129]  ? kasan_check_read+0x11/0x20
[  218.834281]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  218.839824]  __handle_mm_fault+0x3ea0/0x5be0
[  218.844245]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  218.849089]  ? finish_task_switch+0x1f4/0x910
[  218.853583]  ? finish_task_switch+0x1b4/0x910
[  218.858078]  ? __switch_to_asm+0x34/0x70
[  218.862144]  ? preempt_notifier_register+0x200/0x200
[  218.867259]  ? __switch_to_asm+0x34/0x70
[  218.871317]  ? __switch_to_asm+0x34/0x70
[  218.875400]  ? zap_class+0x640/0x640
[  218.879117]  ? zap_class+0x640/0x640
[  218.882847]  ? __x64_sys_futex+0x53e/0x6a0
[  218.887095]  ? find_held_lock+0x36/0x1c0
[  218.891166]  ? handle_mm_fault+0x42a/0xc70
[  218.895405]  ? lock_downgrade+0x900/0x900
[  218.899571]  ? check_preemption_disabled+0x48/0x280
[  218.904606]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  218.909535]  ? kasan_check_read+0x11/0x20
[  218.913685]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  218.918960]  ? rcu_softirq_qs+0x20/0x20
[  218.922937]  ? trace_hardirqs_off_caller+0x310/0x310
[  218.928045]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  218.933583]  ? check_preemption_disabled+0x48/0x280
[  218.938608]  handle_mm_fault+0x54f/0xc70
[  218.942678]  ? __handle_mm_fault+0x5be0/0x5be0
[  218.947268]  ? find_vma+0x34/0x190
[  218.950820]  __do_page_fault+0x5e8/0xe60
[  218.954891]  ? trace_hardirqs_off+0xb8/0x310
[  218.959310]  do_page_fault+0xf2/0x7e0
[  218.963113]  ? vmalloc_sync_all+0x30/0x30
[  218.967261]  ? error_entry+0x70/0xd0
[  218.970975]  ? trace_hardirqs_off_caller+0xbb/0x310
[  218.975992]  ? trace_hardirqs_on_caller+0xc0/0x310
[  218.980924]  ? syscall_return_slowpath+0x5e0/0x5e0
[  218.985850]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  218.990701]  ? trace_hardirqs_on_caller+0x310/0x310
[  218.995720]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  219.001177]  ? prepare_exit_to_usermode+0x291/0x3b0
[  219.006195]  ? page_fault+0x8/0x30
[  219.009742]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  219.014586]  ? page_fault+0x8/0x30
[  219.018131]  page_fault+0x1e/0x30
[  219.021585] RIP: 0033:0x40f9c0
[  219.024793] Code: Bad RIP value.
[  219.028152] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  219.033510] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  219.040775] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  219.048044] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  219.055315] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  219.062585] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  219.069893] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  219.069954] aoe: skb alloc failure
[  219.076650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  219.076655] Call Trace:
[  219.076678]  dump_stack+0x244/0x39d
[  219.076698]  ? dump_stack_print_info.cold.1+0x20/0x20
[  219.080245] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  219.089572]  warn_alloc.cold.116+0xb7/0x1bd
[  219.092128] syz-fuzzer cpuset=/ mems_allowed=0
[  219.095747]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  219.124859]  ? lock_downgrade+0x900/0x900
[  219.129035]  ? trace_hardirqs_off+0xb8/0x310
[  219.133450]  ? trace_hardirqs_off+0xb8/0x310
[  219.137873]  __alloc_pages_slowpath+0x2651/0x2de0
[  219.142754]  ? warn_alloc+0x120/0x120
[  219.146561]  ? print_usage_bug+0xc0/0xc0
[  219.150624]  ? warn_alloc+0x120/0x120
[  219.154428]  ? warn_alloc+0x120/0x120
[  219.158232]  ? print_usage_bug+0xc0/0xc0
[  219.162296]  ? print_usage_bug+0xc0/0xc0
[  219.166357]  ? __lock_acquire+0x62f/0x4c20
[  219.170597]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  219.176132]  ? should_fail+0x22d/0xd01
[  219.180062]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  219.185169]  ? __lock_acquire+0x62f/0x4c20
[  219.189410]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  219.194510]  ? __lock_acquire+0x62f/0x4c20
[  219.198744]  ? should_fail+0x22d/0xd01
[  219.202631]  ? find_held_lock+0x36/0x1c0
[  219.206702]  ? mark_held_locks+0x130/0x130
[  219.210942]  ? mark_held_locks+0x130/0x130
[  219.215175]  ? zap_class+0x640/0x640
[  219.218901]  ? zap_class+0x640/0x640
[  219.222616]  ? print_usage_bug+0xc0/0xc0
[  219.226679]  ? do_raw_spin_unlock+0xa7/0x330
[  219.231085]  ? zap_class+0x640/0x640
[  219.234799]  ? print_usage_bug+0xc0/0xc0
[  219.238881]  ? wq_watchdog_touch+0x9c/0xfe
[  219.243137]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  219.248673]  ? check_preemption_disabled+0x48/0x280
[  219.253696]  ? __lock_is_held+0xb5/0x140
[  219.257763]  __alloc_pages_nodemask+0xad8/0xea0
[  219.262437]  ? zap_class+0x640/0x640
[  219.266153]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  219.271183]  ? find_held_lock+0x36/0x1c0
[  219.275255]  ? ____cache_alloc_node+0x1c7/0x1e0
[  219.279942]  ? lock_downgrade+0x900/0x900
[  219.284099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  219.289638]  cache_grow_begin+0xa5/0x8c0
[  219.293696]  ? do_raw_spin_unlock+0xa7/0x330
[  219.298112]  fallback_alloc+0x204/0x2e0
[  219.302092]  ____cache_alloc_node+0x1c7/0x1e0
[  219.306597]  kmem_cache_alloc_node+0xe3/0x730
[  219.311096]  ? ipv6_get_ifaddr+0x42e/0x620
[  219.315341]  __alloc_skb+0x119/0x770
[  219.319054]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  219.324340]  ? netdev_alloc_frag+0x1f0/0x1f0
[  219.328746]  ? lock_downgrade+0x900/0x900
[  219.332916]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  219.338454]  ? refcount_sub_and_test_checked+0x203/0x310
[  219.343913]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  219.349367]  ? addrconf_rs_timer+0x690/0x690
[  219.353788]  ndisc_alloc_skb+0x144/0x340
[  219.357852]  ndisc_send_rs+0x331/0x6e0
[  219.361754]  addrconf_rs_timer+0x314/0x690
[  219.365994]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  219.370242]  call_timer_fn+0x272/0x920
[  219.374131]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  219.378364]  ? process_timeout+0x40/0x40
[  219.382436]  ? __run_timers+0x7da/0xc70
[  219.386416]  ? _raw_spin_unlock_irq+0x27/0x80
[  219.390908]  ? _raw_spin_unlock_irq+0x27/0x80
[  219.395404]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  219.399642]  ? lockdep_hardirqs_on+0x296/0x5b0
[  219.404235]  ? trace_hardirqs_on+0xbd/0x310
[  219.408558]  ? kasan_check_read+0x11/0x20
[  219.412703]  ? __run_timers+0x7da/0xc70
[  219.416677]  ? trace_hardirqs_off_caller+0x310/0x310
[  219.421789]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  219.426027]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  219.430268]  __run_timers+0x7e5/0xc70
[  219.434088]  ? timer_fixup_init+0x70/0x70
[  219.438235]  ? _raw_spin_unlock_irq+0x27/0x80
[  219.442728]  ? _raw_spin_unlock_irq+0x27/0x80
[  219.447229]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  219.451815]  ? trace_hardirqs_on+0xbd/0x310
[  219.456138]  ? kasan_check_read+0x11/0x20
[  219.460288]  ? finish_task_switch+0x1f4/0x910
[  219.464782]  ? trace_hardirqs_off_caller+0x310/0x310
[  219.469900]  ? compat_start_thread+0x80/0x80
[  219.474328]  ? pvclock_read_flags+0x160/0x160
[  219.478821]  ? __switch_to_asm+0x34/0x70
[  219.482912]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  219.488455]  ? check_preemption_disabled+0x48/0x280
[  219.493482]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  219.499022]  ? rcu_pm_notify+0xc0/0xc0
[  219.502918]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  219.508457]  ? check_preemption_disabled+0x48/0x280
[  219.513482]  run_timer_softirq+0x52/0xb0
[  219.517559]  ? rcu_read_lock_sched_held+0x14f/0x180
[  219.522607]  __do_softirq+0x308/0xb7e
[  219.526414]  ? trace_hardirqs_on_caller+0xc0/0x310
[  219.531366]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  219.536465]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  219.541955]  ? trace_hardirqs_on+0x310/0x310
[  219.546373]  ? schedule+0x108/0x460
[  219.550010]  ? trace_hardirqs_off+0xb8/0x310
[  219.554416]  ? smpboot_thread_fn+0x68b/0xa00
[  219.558841]  ? trace_hardirqs_on+0x310/0x310
[  219.563329]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  219.568882]  ? check_preemption_disabled+0x48/0x280
[  219.573907]  ? takeover_tasklets+0xa90/0xa90
[  219.578315]  run_ksoftirqd+0x5e/0x100
[  219.582114]  smpboot_thread_fn+0x68b/0xa00
[  219.586355]  ? sort_range+0x30/0x30
[  219.589986]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  219.595088]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  219.600629]  ? __kthread_parkme+0xfb/0x1a0
[  219.604864]  ? sort_range+0x30/0x30
[  219.608521]  kthread+0x35a/0x440
[  219.611898]  ? kthread_stop+0x900/0x900
[  219.615892]  ret_from_fork+0x3a/0x50
[  219.619624] warn_alloc_show_mem: 1 callbacks suppressed
[  219.619635] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  219.619637] Mem-Info:
[  219.619668] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  219.619668]  active_file:12 inactive_file:14 isolated_file:0
[  219.619668]  unevictable:0 dirty:0 writeback:0 unstable:0
[  219.619668]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  219.619668]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  219.619668]  free:13757 free_pcp:113 free_cma:0
[  219.625004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  219.631952] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  219.634350] Call Trace:
[  219.667384] 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
[  219.676737]  <IRQ>
[  219.704563] lowmem_reserve[]: 0 2818 6321 6321
[  219.707159]  dump_stack+0x244/0x39d
[  219.733242] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  219.735402]  ? dump_stack_print_info.cold.1+0x20/0x20
[  219.739946] lowmem_reserve[]: 0 0 3503 3503
[  219.743580]  warn_alloc.cold.116+0xb7/0x1bd
[  219.771053] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  219.776240]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  219.780550] lowmem_reserve[]: 0 0 0 0
[  219.784880]  ? lock_downgrade+0x900/0x900
[  219.813930] 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
[  219.818769]  ? trace_hardirqs_off+0xb8/0x310
[  219.822539] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  219.826682]  ? trace_hardirqs_off+0xb8/0x310
[  219.840182] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  219.844588]  __alloc_pages_slowpath+0x2651/0x2de0
[  219.860083] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  219.864503]  ? warn_alloc+0x120/0x120
[  219.879024] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  219.883855]  ? warn_alloc+0x120/0x120
[  219.892673] 4236 total pagecache pages
[  219.896470]  ? __lock_acquire+0x62f/0x4c20
[  219.905024] 0 pages in swap cache
[  219.908811]  ? warn_alloc+0x120/0x120
[  219.912677] Swap cache stats: add 0, delete 0, find 0/0
[  219.916932]  ? print_usage_bug+0xc0/0xc0
[  219.920362] Free swap  = 0kB
[  219.924160]  ? print_usage_bug+0xc0/0xc0
[  219.929501] Total swap = 0kB
[  219.933557]  ? mark_held_locks+0x130/0x130
[  219.936552] 1965979 pages RAM
[  219.940610]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  219.943603] 0 pages HighMem/MovableOnly
[  219.947829]  ? should_fail+0x22d/0xd01
[  219.950936] 342854 pages reserved
[  219.956474]  ? zap_class+0x640/0x640
[  219.960423] 0 pages cma reserved
[  219.964304]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  219.967844] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  219.971451]  ? __lock_acquire+0x62f/0x4c20
[  219.974896] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  219.979912]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  219.986387] ksoftirqd/0 cpuset=/ mems_allowed=0
[  219.990612]  ? should_fail+0x22d/0xd01
[  220.014550]  ? mark_held_locks+0x130/0x130
[  220.018791]  ? mark_held_locks+0x130/0x130
[  220.023025]  ? lock_downgrade+0x900/0x900
[  220.027189]  ? zap_class+0x640/0x640
[  220.030907]  ? zap_class+0x640/0x640
[  220.034625]  ? zap_class+0x640/0x640
[  220.038338]  ? do_raw_spin_unlock+0xa7/0x330
[  220.042749]  ? trace_hardirqs_on+0x310/0x310
[  220.047156]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.052711]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.058249]  ? check_preemption_disabled+0x48/0x280
[  220.063274]  ? __lock_is_held+0xb5/0x140
[  220.067343]  __alloc_pages_nodemask+0xad8/0xea0
[  220.072016]  ? zap_class+0x640/0x640
[  220.075736]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  220.080764]  ? find_held_lock+0x36/0x1c0
[  220.084838]  ? ____cache_alloc_node+0x1c7/0x1e0
[  220.089519]  ? lock_downgrade+0x900/0x900
[  220.093679]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.099221]  cache_grow_begin+0xa5/0x8c0
[  220.103282]  ? do_raw_spin_unlock+0xa7/0x330
[  220.107702]  fallback_alloc+0x204/0x2e0
[  220.111684]  ____cache_alloc_node+0x1c7/0x1e0
[  220.116191]  kmem_cache_alloc_node+0xe3/0x730
[  220.120689]  ? lockdep_hardirqs_on+0x296/0x5b0
[  220.125281]  __alloc_skb+0x119/0x770
[  220.128993]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  220.134366]  ? netdev_alloc_frag+0x1f0/0x1f0
[  220.138792]  ? vprintk_default+0x28/0x30
[  220.142852]  ? vprintk_func+0x85/0x181
[  220.146746]  ? printk+0xa7/0xcf
[  220.150026]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  220.154810]  new_skb+0x26/0x1c0
[  220.158088]  aoecmd_cfg+0x279/0x7f0
[  220.161716]  ? find_held_lock+0x36/0x1c0
[  220.165780]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  220.170108]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.175655]  ? __lock_is_held+0xb5/0x140
[  220.179725]  discover_timer+0x50/0x60
[  220.183525]  call_timer_fn+0x272/0x920
[  220.187411]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  220.192252]  ? process_timeout+0x40/0x40
[  220.196326]  ? mark_held_locks+0xc7/0x130
[  220.200473]  ? _raw_spin_unlock_irq+0x27/0x80
[  220.204967]  ? _raw_spin_unlock_irq+0x27/0x80
[  220.209461]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  220.214306]  ? lockdep_hardirqs_on+0x296/0x5b0
[  220.218893]  ? trace_hardirqs_on+0xbd/0x310
[  220.223247]  ? kasan_check_read+0x11/0x20
[  220.227400]  ? __run_timers+0x7da/0xc70
[  220.231381]  ? trace_hardirqs_off_caller+0x310/0x310
[  220.236495]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  220.241344]  __run_timers+0x7e5/0xc70
[  220.245171]  ? timer_fixup_init+0x70/0x70
[  220.249327]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  220.254346]  ? zap_class+0x640/0x640
[  220.258068]  ? print_usage_bug+0xc0/0xc0
[  220.262130]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  220.267342]  ? find_held_lock+0x36/0x1c0
[  220.271409]  ? zap_class+0x640/0x640
[  220.275128]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.280668]  ? check_preemption_disabled+0x48/0x280
[  220.285690]  ? __lock_is_held+0xb5/0x140
[  220.289750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.295293]  ? check_preemption_disabled+0x48/0x280
[  220.300313]  run_timer_softirq+0x52/0xb0
[  220.304374]  ? rcu_read_lock_sched_held+0x14f/0x180
[  220.309404]  __do_softirq+0x308/0xb7e
[  220.313214]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  220.317711]  ? lock_downgrade+0x900/0x900
[  220.321862]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  220.326987]  ? pvclock_read_flags+0x160/0x160
[  220.331483]  ? lapic_next_event+0x5a/0x90
[  220.335636]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.341179]  ? kvm_clock_read+0x18/0x30
[  220.345154]  ? kvm_sched_clock_read+0x9/0x20
[  220.349564]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  220.355105]  ? check_preemption_disabled+0x48/0x280
[  220.360134]  irq_exit+0x17f/0x1c0
[  220.363590]  smp_apic_timer_interrupt+0x1cb/0x760
[  220.368437]  ? smp_call_function_single_interrupt+0x159/0x650
[  220.374323]  ? smp_call_function_single_interrupt+0x650/0x650
[  220.380209]  ? interrupt_entry+0xb5/0xc0
[  220.384274]  ? trace_hardirqs_off_caller+0xbb/0x310
[  220.389288]  ? trace_hardirqs_off_caller+0xbb/0x310
[  220.394304]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  220.399159]  ? trace_hardirqs_on_caller+0x310/0x310
[  220.404170]  ? trace_hardirqs_on_caller+0x310/0x310
[  220.409199]  ? task_prio+0x50/0x50
[  220.412755]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.418310]  ? check_preemption_disabled+0x48/0x280
[  220.423348]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  220.428219]  apic_timer_interrupt+0xf/0x20
[  220.432612]  </IRQ>
[  220.434850] RIP: 0010:dump_stack+0x358/0x39d
[  220.439268] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  220.458197] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  220.465914] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  220.473185] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  220.480456] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  220.487720] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  220.495008] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  220.502298]  ? dump_stack+0x34f/0x39d
[  220.506116]  ? dump_stack_print_info.cold.1+0x20/0x20
[  220.511309]  ? mark_held_locks+0x130/0x130
[  220.515592]  ? mark_held_locks+0x130/0x130
[  220.519828]  dump_header+0x27b/0xf72
[  220.523556]  ? pagefault_out_of_memory+0x197/0x197
[  220.528519]  ? __lock_acquire+0x62f/0x4c20
[  220.532759]  ? percpu_ref_get_many+0x240/0x240
[  220.537345]  ? print_usage_bug+0xc0/0xc0
[  220.541417]  ? zap_class+0x640/0x640
[  220.545138]  ? print_usage_bug+0xc0/0xc0
[  220.549208]  ? print_usage_bug+0xc0/0xc0
[  220.553272]  ? zap_class+0x640/0x640
[  220.556991]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.563059]  ? find_held_lock+0x36/0x1c0
[  220.567136]  ? mark_held_locks+0xc7/0x130
[  220.571285]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  220.576408]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  220.581511]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  220.586096]  ? trace_hardirqs_on+0xbd/0x310
[  220.590418]  ? kasan_check_read+0x11/0x20
[  220.594578]  ? ___ratelimit+0x3b4/0x672
[  220.598572]  ? trace_hardirqs_off_caller+0x310/0x310
[  220.603692]  ? trace_hardirqs_on+0x310/0x310
[  220.608104]  ? lock_downgrade+0x900/0x900
[  220.612258]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  220.617365]  ? ___ratelimit+0x3b9/0x672
[  220.621346]  ? idr_get_free+0xf70/0xf70
[  220.625337]  ? find_held_lock+0x36/0x1c0
[  220.629424]  oom_kill_process.cold.27+0x10/0x903
[  220.634186]  ? zap_class+0x640/0x640
[  220.637908]  ? check_preemption_disabled+0x48/0x280
[  220.642934]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  220.647873]  ? kasan_check_read+0x11/0x20
[  220.652020]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  220.657301]  ? oom_evaluate_task+0x540/0x540
[  220.661715]  ? find_held_lock+0x36/0x1c0
[  220.665784]  ? out_of_memory+0x974/0x1430
[  220.669932]  ? lock_downgrade+0x900/0x900
[  220.674084]  ? check_preemption_disabled+0x48/0x280
[  220.679105]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  220.684033]  ? kasan_check_read+0x11/0x20
[  220.688181]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  220.693460]  ? rcu_softirq_qs+0x20/0x20
[  220.697442]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  220.702979]  ? oom_evaluate_task+0x302/0x540
[  220.707405]  out_of_memory+0xa84/0x1430
[  220.711396]  ? oom_killer_disable+0x3a0/0x3a0
[  220.715903]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  220.720837]  ? __ww_mutex_check_waiters+0x160/0x160
[  220.725879]  __alloc_pages_slowpath+0x232c/0x2de0
[  220.730751]  ? warn_alloc+0x120/0x120
[  220.734550]  ? mark_held_locks+0x130/0x130
[  220.738790]  ? find_get_entry+0xaae/0x1120
[  220.743032]  ? filemap_map_pages+0x1a20/0x1a20
[  220.747622]  ? zap_class+0x640/0x640
[  220.751342]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.756892]  ? check_preemption_disabled+0x48/0x280
[  220.761913]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  220.767450]  ? should_fail+0x22d/0xd01
[  220.771343]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  220.776449]  ? zap_class+0x640/0x640
[  220.780187]  ? __lock_is_held+0xb5/0x140
[  220.784261]  ? mark_held_locks+0x130/0x130
[  220.788500]  ? lock_release+0xa00/0xa00
[  220.792476]  ? perf_trace_sched_process_exec+0x860/0x860
[  220.797934]  ? xa_load+0x2ba/0x460
[  220.801480]  ? lock_downgrade+0x900/0x900
[  220.805639]  ? __might_sleep+0x95/0x190
[  220.809619]  __alloc_pages_nodemask+0xad8/0xea0
[  220.814297]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  220.819316]  ? __page_cache_alloc+0x191/0x5c0
[  220.823814]  ? xa_load+0x2e1/0x460
[  220.827356]  ? xa_clear_mark+0x40/0x40
[  220.831252]  ? zap_class+0x640/0x640
[  220.834972]  ? zap_class+0x640/0x640
[  220.838685]  ? zap_class+0x640/0x640
[  220.842402]  ? __do_page_cache_readahead+0x663/0x810
[  220.847519]  ? find_held_lock+0x36/0x1c0
[  220.851582]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  220.857132]  alloc_pages_current+0x173/0x350
[  220.861562]  __page_cache_alloc+0x38c/0x5c0
[  220.865907]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  220.870836]  ? kasan_check_read+0x11/0x20
[  220.874996]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  220.880276]  ? generic_perform_write+0x6a0/0x6a0
[  220.885035]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  220.890574]  ? check_preemption_disabled+0x48/0x280
[  220.895600]  filemap_fault+0x1595/0x25f0
[  220.899677]  ? __lock_page_or_retry+0xa00/0xa00
[  220.904353]  ? mark_held_locks+0x130/0x130
[  220.908604]  ? filemap_map_pages+0xd6b/0x1a20
[  220.913102]  ? lock_downgrade+0x900/0x900
[  220.917249]  ? check_preemption_disabled+0x48/0x280
[  220.922271]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  220.927200]  ? kasan_check_read+0x11/0x20
[  220.931361]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  220.936639]  ? rcu_softirq_qs+0x20/0x20
[  220.940626]  ? filemap_map_pages+0xd92/0x1a20
[  220.945138]  ? find_get_entries_tag+0x1400/0x1400
[  220.949986]  ? debug_object_destroy+0x2b0/0x2b0
[  220.954668]  ? lock_pi_update_atomic+0x150/0x150
[  220.959424]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  220.964976]  ? lock_acquire+0x1ed/0x520
[  220.968953]  ? ext4_filemap_fault+0x7a/0xad
[  220.973284]  ? lock_release+0xa00/0xa00
[  220.977257]  ? perf_trace_sched_process_exec+0x860/0x860
[  220.982708]  ? print_usage_bug+0xc0/0xc0
[  220.986769]  ? print_usage_bug+0xc0/0xc0
[  220.990848]  ? down_read+0x8d/0x120
[  220.994484]  ? ext4_filemap_fault+0x7a/0xad
[  220.998804]  ? __down_interruptible+0x700/0x700
[  221.003482]  ext4_filemap_fault+0x82/0xad
[  221.007635]  __do_fault+0x100/0x6b0
[  221.011273]  ? find_held_lock+0x36/0x1c0
[  221.015363]  ? pmd_devmap_trans_unstable+0x220/0x220
[  221.020475]  ? mark_held_locks+0x130/0x130
[  221.024711]  ? mark_held_locks+0x130/0x130
[  221.028948]  ? _raw_spin_unlock_irq+0x27/0x80
[  221.033441]  ? _raw_spin_unlock_irq+0x27/0x80
[  221.037939]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  221.042522]  ? kasan_check_read+0x11/0x20
[  221.046674]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  221.052218]  __handle_mm_fault+0x3ea0/0x5be0
[  221.056636]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  221.061480]  ? finish_task_switch+0x1f4/0x910
[  221.065985]  ? finish_task_switch+0x1b4/0x910
[  221.070481]  ? __switch_to_asm+0x34/0x70
[  221.074548]  ? preempt_notifier_register+0x200/0x200
[  221.079652]  ? __switch_to_asm+0x34/0x70
[  221.083715]  ? __switch_to_asm+0x34/0x70
[  221.087794]  ? zap_class+0x640/0x640
[  221.091511]  ? zap_class+0x640/0x640
[  221.095225]  ? __x64_sys_futex+0x53e/0x6a0
[  221.099468]  ? find_held_lock+0x36/0x1c0
[  221.103543]  ? handle_mm_fault+0x42a/0xc70
[  221.107783]  ? lock_downgrade+0x900/0x900
[  221.111938]  ? check_preemption_disabled+0x48/0x280
[  221.116961]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  221.121895]  ? kasan_check_read+0x11/0x20
[  221.126046]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  221.131326]  ? rcu_softirq_qs+0x20/0x20
[  221.135300]  ? trace_hardirqs_off_caller+0x310/0x310
[  221.140410]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  221.145952]  ? check_preemption_disabled+0x48/0x280
[  221.150982]  handle_mm_fault+0x54f/0xc70
[  221.155053]  ? __handle_mm_fault+0x5be0/0x5be0
[  221.159640]  ? find_vma+0x34/0x190
[  221.163194]  __do_page_fault+0x5e8/0xe60
[  221.167255]  ? trace_hardirqs_off+0xb8/0x310
[  221.171677]  do_page_fault+0xf2/0x7e0
[  221.175482]  ? vmalloc_sync_all+0x30/0x30
[  221.179633]  ? error_entry+0x70/0xd0
[  221.183352]  ? trace_hardirqs_off_caller+0xbb/0x310
[  221.188370]  ? trace_hardirqs_on_caller+0xc0/0x310
[  221.193302]  ? syscall_return_slowpath+0x5e0/0x5e0
[  221.198229]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  221.203071]  ? trace_hardirqs_on_caller+0x310/0x310
[  221.208088]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  221.213548]  ? prepare_exit_to_usermode+0x291/0x3b0
[  221.218567]  ? page_fault+0x8/0x30
[  221.222108]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  221.226956]  ? page_fault+0x8/0x30
[  221.230496]  page_fault+0x1e/0x30
[  221.233945] RIP: 0033:0x40f9c0
[  221.237148] Code: Bad RIP value.
[  221.240507] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  221.245876] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  221.253158] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  221.260427] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  221.267692] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  221.274963] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  221.282260] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  221.282325] aoe: skb alloc failure
[  221.289018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  221.289023] Call Trace:
[  221.289046]  dump_stack+0x244/0x39d
[  221.289065]  ? dump_stack_print_info.cold.1+0x20/0x20
[  221.292620] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  221.301948]  warn_alloc.cold.116+0xb7/0x1bd
[  221.304502] syz-fuzzer cpuset=/ mems_allowed=0
[  221.308125]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  221.337222]  ? lock_downgrade+0x900/0x900
[  221.341399]  ? trace_hardirqs_off+0xb8/0x310
[  221.345831]  ? trace_hardirqs_off+0xb8/0x310
[  221.350251]  __alloc_pages_slowpath+0x2651/0x2de0
[  221.355307]  ? warn_alloc+0x120/0x120
[  221.359113]  ? print_usage_bug+0xc0/0xc0
[  221.363177]  ? warn_alloc+0x120/0x120
[  221.366988]  ? warn_alloc+0x120/0x120
[  221.370793]  ? print_usage_bug+0xc0/0xc0
[  221.374857]  ? print_usage_bug+0xc0/0xc0
[  221.378934]  ? __lock_acquire+0x62f/0x4c20
[  221.383179]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  221.388720]  ? should_fail+0x22d/0xd01
[  221.392612]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  221.397717]  ? __lock_acquire+0x62f/0x4c20
[  221.401956]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  221.407061]  ? __lock_acquire+0x62f/0x4c20
[  221.411292]  ? should_fail+0x22d/0xd01
[  221.415182]  ? find_held_lock+0x36/0x1c0
[  221.419252]  ? mark_held_locks+0x130/0x130
[  221.423492]  ? mark_held_locks+0x130/0x130
[  221.427726]  ? zap_class+0x640/0x640
[  221.431447]  ? mark_held_locks+0xc7/0x130
[  221.435593]  ? do_raw_spin_unlock+0xa7/0x330
[  221.440028]  ? zap_class+0x640/0x640
[  221.443741]  ? print_usage_bug+0xc0/0xc0
[  221.447808]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  221.453348]  ? check_preemption_disabled+0x48/0x280
[  221.458373]  ? __lock_is_held+0xb5/0x140
[  221.462443]  __alloc_pages_nodemask+0xad8/0xea0
[  221.467111]  ? zap_class+0x640/0x640
[  221.470828]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  221.475855]  ? find_held_lock+0x36/0x1c0
[  221.479936]  ? ____cache_alloc_node+0x1c7/0x1e0
[  221.484633]  ? lock_downgrade+0x900/0x900
[  221.488797]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  221.494339]  cache_grow_begin+0xa5/0x8c0
[  221.498399]  ? do_raw_spin_unlock+0xa7/0x330
[  221.502815]  fallback_alloc+0x204/0x2e0
[  221.506796]  ____cache_alloc_node+0x1c7/0x1e0
[  221.511300]  kmem_cache_alloc_node+0xe3/0x730
[  221.515797]  ? ipv6_get_ifaddr+0x42e/0x620
[  221.520042]  __alloc_skb+0x119/0x770
[  221.523755]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  221.529037]  ? netdev_alloc_frag+0x1f0/0x1f0
[  221.533442]  ? lock_downgrade+0x900/0x900
[  221.537626]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  221.543164]  ? refcount_sub_and_test_checked+0x203/0x310
[  221.548621]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  221.554071]  ? addrconf_rs_timer+0x690/0x690
[  221.558495]  ndisc_alloc_skb+0x144/0x340
[  221.562561]  ndisc_send_rs+0x331/0x6e0
[  221.566483]  addrconf_rs_timer+0x314/0x690
[  221.570718]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  221.574964]  call_timer_fn+0x272/0x920
[  221.578865]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  221.583115]  ? process_timeout+0x40/0x40
[  221.587195]  ? __run_timers+0x7da/0xc70
[  221.591169]  ? _raw_spin_unlock_irq+0x27/0x80
[  221.595705]  ? _raw_spin_unlock_irq+0x27/0x80
[  221.600201]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  221.604438]  ? lockdep_hardirqs_on+0x296/0x5b0
[  221.609026]  ? trace_hardirqs_on+0xbd/0x310
[  221.613350]  ? kasan_check_read+0x11/0x20
[  221.617498]  ? __run_timers+0x7da/0xc70
[  221.621490]  ? trace_hardirqs_off_caller+0x310/0x310
[  221.626595]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  221.630834]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  221.635072]  __run_timers+0x7e5/0xc70
[  221.638896]  ? timer_fixup_init+0x70/0x70
[  221.643049]  ? _raw_spin_unlock_irq+0x27/0x80
[  221.647541]  ? _raw_spin_unlock_irq+0x27/0x80
[  221.652039]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  221.656623]  ? trace_hardirqs_on+0xbd/0x310
[  221.660945]  ? kasan_check_read+0x11/0x20
[  221.665093]  ? finish_task_switch+0x1f4/0x910
[  221.669591]  ? trace_hardirqs_off_caller+0x310/0x310
[  221.674694]  ? compat_start_thread+0x80/0x80
[  221.679124]  ? pvclock_read_flags+0x160/0x160
[  221.683620]  ? __switch_to_asm+0x34/0x70
[  221.687682]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  221.693220]  ? check_preemption_disabled+0x48/0x280
[  221.698248]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  221.703786]  ? rcu_pm_notify+0xc0/0xc0
[  221.707676]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  221.713216]  ? check_preemption_disabled+0x48/0x280
[  221.718238]  run_timer_softirq+0x52/0xb0
[  221.722298]  ? rcu_read_lock_sched_held+0x14f/0x180
[  221.727316]  __do_softirq+0x308/0xb7e
[  221.731149]  ? trace_hardirqs_on_caller+0xc0/0x310
[  221.736087]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  221.741191]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  221.746639]  ? trace_hardirqs_on+0x310/0x310
[  221.751056]  ? schedule+0x108/0x460
[  221.754707]  ? trace_hardirqs_off+0xb8/0x310
[  221.759116]  ? smpboot_thread_fn+0x68b/0xa00
[  221.763526]  ? trace_hardirqs_on+0x310/0x310
[  221.767936]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  221.773474]  ? check_preemption_disabled+0x48/0x280
[  221.778509]  ? takeover_tasklets+0xa90/0xa90
[  221.782926]  run_ksoftirqd+0x5e/0x100
[  221.786728]  smpboot_thread_fn+0x68b/0xa00
[  221.790969]  ? sort_range+0x30/0x30
[  221.794597]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  221.799717]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  221.805253]  ? __kthread_parkme+0xfb/0x1a0
[  221.809490]  ? sort_range+0x30/0x30
[  221.813119]  kthread+0x35a/0x440
[  221.816488]  ? kthread_stop+0x900/0x900
[  221.820462]  ret_from_fork+0x3a/0x50
[  221.824188] warn_alloc_show_mem: 1 callbacks suppressed
[  221.824199] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  221.824201] Mem-Info:
[  221.824233] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  221.824233]  active_file:12 inactive_file:14 isolated_file:0
[  221.824233]  unevictable:0 dirty:0 writeback:0 unstable:0
[  221.824233]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  221.824233]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  221.824233]  free:13757 free_pcp:113 free_cma:0
[  221.829568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  221.836527] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  221.838927] Call Trace:
[  221.871968] 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
[  221.881313]  <IRQ>
[  221.909133] lowmem_reserve[]: 0 2818 6321 6321
[  221.911724]  dump_stack+0x244/0x39d
[  221.937803] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  221.939959]  ? dump_stack_print_info.cold.1+0x20/0x20
[  221.944510] lowmem_reserve[]: 0 0 3503 3503
[  221.948137]  warn_alloc.cold.116+0xb7/0x1bd
[  221.975604] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  221.980807]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  221.985087] lowmem_reserve[]: 0 0 0 0
[  221.989408]  ? lock_downgrade+0x900/0x900
[  222.018446] 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
[  222.023292]  ? trace_hardirqs_off+0xb8/0x310
[  222.027060] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  222.031202]  ? trace_hardirqs_off+0xb8/0x310
[  222.044697] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  222.049106]  __alloc_pages_slowpath+0x2651/0x2de0
[  222.064602] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  222.069022]  ? warn_alloc+0x120/0x120
[  222.083549] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  222.088385]  ? warn_alloc+0x120/0x120
[  222.097194] 4236 total pagecache pages
[  222.100992]  ? __lock_acquire+0x62f/0x4c20
[  222.109544] 0 pages in swap cache
[  222.113329]  ? warn_alloc+0x120/0x120
[  222.117194] Swap cache stats: add 0, delete 0, find 0/0
[  222.121418]  ? print_usage_bug+0xc0/0xc0
[  222.124847] Free swap  = 0kB
[  222.128648]  ? print_usage_bug+0xc0/0xc0
[  222.133984] Total swap = 0kB
[  222.138063]  ? mark_held_locks+0x130/0x130
[  222.141086] 1965979 pages RAM
[  222.145140]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  222.148130] 0 pages HighMem/MovableOnly
[  222.152358]  ? should_fail+0x22d/0xd01
[  222.155450] 342854 pages reserved
[  222.160978]  ? zap_class+0x640/0x640
[  222.164928] 0 pages cma reserved
[  222.168811]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  222.172307] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  222.175936]  ? __lock_acquire+0x62f/0x4c20
[  222.175953]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  222.175968]  ? should_fail+0x22d/0xd01
[  222.179519] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  222.184464]  ? mark_held_locks+0x130/0x130
[  222.190927] ksoftirqd/0 cpuset=/ mems_allowed=0
[  222.195166]  ? mark_held_locks+0x130/0x130
[  222.227585]  ? lock_downgrade+0x900/0x900
[  222.231731]  ? zap_class+0x640/0x640
[  222.235442]  ? zap_class+0x640/0x640
[  222.239175]  ? zap_class+0x640/0x640
[  222.242911]  ? do_raw_spin_unlock+0xa7/0x330
[  222.247350]  ? trace_hardirqs_on+0x310/0x310
[  222.251762]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.257300]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.262857]  ? check_preemption_disabled+0x48/0x280
[  222.267899]  ? __lock_is_held+0xb5/0x140
[  222.271990]  __alloc_pages_nodemask+0xad8/0xea0
[  222.276662]  ? zap_class+0x640/0x640
[  222.280398]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  222.285424]  ? find_held_lock+0x36/0x1c0
[  222.289514]  ? ____cache_alloc_node+0x1c7/0x1e0
[  222.294181]  ? lock_downgrade+0x900/0x900
[  222.298334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.303900]  cache_grow_begin+0xa5/0x8c0
[  222.307961]  ? do_raw_spin_unlock+0xa7/0x330
[  222.312384]  fallback_alloc+0x204/0x2e0
[  222.316388]  ____cache_alloc_node+0x1c7/0x1e0
[  222.320895]  kmem_cache_alloc_node+0xe3/0x730
[  222.325396]  ? lockdep_hardirqs_on+0x296/0x5b0
[  222.329986]  __alloc_skb+0x119/0x770
[  222.333702]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  222.339071]  ? netdev_alloc_frag+0x1f0/0x1f0
[  222.343486]  ? vprintk_default+0x28/0x30
[  222.347547]  ? vprintk_func+0x85/0x181
[  222.351445]  ? printk+0xa7/0xcf
[  222.354740]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  222.359513]  new_skb+0x26/0x1c0
[  222.362791]  aoecmd_cfg+0x279/0x7f0
[  222.366432]  ? find_held_lock+0x36/0x1c0
[  222.370494]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  222.374825]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.380375]  ? __lock_is_held+0xb5/0x140
[  222.384456]  discover_timer+0x50/0x60
[  222.388257]  call_timer_fn+0x272/0x920
[  222.392143]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  222.396989]  ? process_timeout+0x40/0x40
[  222.401059]  ? mark_held_locks+0xc7/0x130
[  222.405212]  ? _raw_spin_unlock_irq+0x27/0x80
[  222.409718]  ? _raw_spin_unlock_irq+0x27/0x80
[  222.414223]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  222.419065]  ? lockdep_hardirqs_on+0x296/0x5b0
[  222.423648]  ? trace_hardirqs_on+0xbd/0x310
[  222.427974]  ? kasan_check_read+0x11/0x20
[  222.432386]  ? __run_timers+0x7da/0xc70
[  222.436366]  ? trace_hardirqs_off_caller+0x310/0x310
[  222.441568]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  222.446421]  __run_timers+0x7e5/0xc70
[  222.450248]  ? timer_fixup_init+0x70/0x70
[  222.454404]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  222.459432]  ? zap_class+0x640/0x640
[  222.463170]  ? print_usage_bug+0xc0/0xc0
[  222.467246]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  222.472443]  ? find_held_lock+0x36/0x1c0
[  222.476523]  ? zap_class+0x640/0x640
[  222.480245]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.485787]  ? check_preemption_disabled+0x48/0x280
[  222.490824]  ? __lock_is_held+0xb5/0x140
[  222.494893]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.500436]  ? check_preemption_disabled+0x48/0x280
[  222.505455]  run_timer_softirq+0x52/0xb0
[  222.509514]  ? rcu_read_lock_sched_held+0x14f/0x180
[  222.514559]  __do_softirq+0x308/0xb7e
[  222.518362]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  222.522884]  ? lock_downgrade+0x900/0x900
[  222.527037]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  222.532163]  ? pvclock_read_flags+0x160/0x160
[  222.536666]  ? lapic_next_event+0x5a/0x90
[  222.540812]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.546351]  ? kvm_clock_read+0x18/0x30
[  222.550324]  ? kvm_sched_clock_read+0x9/0x20
[  222.554745]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  222.560281]  ? check_preemption_disabled+0x48/0x280
[  222.565826]  irq_exit+0x17f/0x1c0
[  222.569300]  smp_apic_timer_interrupt+0x1cb/0x760
[  222.574159]  ? smp_call_function_single_interrupt+0x159/0x650
[  222.580046]  ? smp_call_function_single_interrupt+0x650/0x650
[  222.585938]  ? interrupt_entry+0xb5/0xc0
[  222.590003]  ? trace_hardirqs_off_caller+0xbb/0x310
[  222.595019]  ? trace_hardirqs_off_caller+0xbb/0x310
[  222.600036]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  222.604888]  ? trace_hardirqs_on_caller+0x310/0x310
[  222.609908]  ? trace_hardirqs_on_caller+0x310/0x310
[  222.614922]  ? task_prio+0x50/0x50
[  222.618466]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.624007]  ? check_preemption_disabled+0x48/0x280
[  222.629026]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  222.633883]  apic_timer_interrupt+0xf/0x20
[  222.638118]  </IRQ>
[  222.640357] RIP: 0010:dump_stack+0x358/0x39d
[  222.644784] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  222.663685] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  222.671409] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  222.678691] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  222.685958] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  222.693242] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  222.700510] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  222.707808]  ? dump_stack+0x34f/0x39d
[  222.711651]  ? dump_stack_print_info.cold.1+0x20/0x20
[  222.716842]  ? mark_held_locks+0x130/0x130
[  222.721084]  ? mark_held_locks+0x130/0x130
[  222.725321]  dump_header+0x27b/0xf72
[  222.729048]  ? pagefault_out_of_memory+0x197/0x197
[  222.733986]  ? __lock_acquire+0x62f/0x4c20
[  222.738223]  ? percpu_ref_get_many+0x240/0x240
[  222.742808]  ? print_usage_bug+0xc0/0xc0
[  222.746884]  ? zap_class+0x640/0x640
[  222.750616]  ? print_usage_bug+0xc0/0xc0
[  222.754689]  ? print_usage_bug+0xc0/0xc0
[  222.758751]  ? zap_class+0x640/0x640
[  222.762485]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.768042]  ? find_held_lock+0x36/0x1c0
[  222.772115]  ? mark_held_locks+0xc7/0x130
[  222.776262]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  222.781362]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  222.786471]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  222.791061]  ? trace_hardirqs_on+0xbd/0x310
[  222.795393]  ? kasan_check_read+0x11/0x20
[  222.799539]  ? ___ratelimit+0x3b4/0x672
[  222.803513]  ? trace_hardirqs_off_caller+0x310/0x310
[  222.808614]  ? trace_hardirqs_on+0x310/0x310
[  222.813025]  ? lock_downgrade+0x900/0x900
[  222.817181]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  222.822280]  ? ___ratelimit+0x3b9/0x672
[  222.826259]  ? idr_get_free+0xf70/0xf70
[  222.830244]  ? find_held_lock+0x36/0x1c0
[  222.834312]  oom_kill_process.cold.27+0x10/0x903
[  222.839065]  ? zap_class+0x640/0x640
[  222.842780]  ? check_preemption_disabled+0x48/0x280
[  222.847802]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  222.852731]  ? kasan_check_read+0x11/0x20
[  222.856902]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  222.862185]  ? oom_evaluate_task+0x540/0x540
[  222.866596]  ? find_held_lock+0x36/0x1c0
[  222.870664]  ? out_of_memory+0x974/0x1430
[  222.874812]  ? lock_downgrade+0x900/0x900
[  222.878965]  ? check_preemption_disabled+0x48/0x280
[  222.883984]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  222.888917]  ? kasan_check_read+0x11/0x20
[  222.893062]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  222.898336]  ? rcu_softirq_qs+0x20/0x20
[  222.902315]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  222.907849]  ? oom_evaluate_task+0x302/0x540
[  222.912297]  out_of_memory+0xa84/0x1430
[  222.916285]  ? oom_killer_disable+0x3a0/0x3a0
[  222.920776]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  222.925707]  ? __ww_mutex_check_waiters+0x160/0x160
[  222.930736]  __alloc_pages_slowpath+0x232c/0x2de0
[  222.935609]  ? warn_alloc+0x120/0x120
[  222.939416]  ? mark_held_locks+0x130/0x130
[  222.943653]  ? find_get_entry+0xaae/0x1120
[  222.947907]  ? filemap_map_pages+0x1a20/0x1a20
[  222.952526]  ? zap_class+0x640/0x640
[  222.956243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  222.961781]  ? check_preemption_disabled+0x48/0x280
[  222.966814]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  222.972363]  ? should_fail+0x22d/0xd01
[  222.976259]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  222.981368]  ? zap_class+0x640/0x640
[  222.985113]  ? __lock_is_held+0xb5/0x140
[  222.989213]  ? mark_held_locks+0x130/0x130
[  222.993450]  ? lock_release+0xa00/0xa00
[  222.997423]  ? perf_trace_sched_process_exec+0x860/0x860
[  223.002877]  ? xa_load+0x2ba/0x460
[  223.006419]  ? lock_downgrade+0x900/0x900
[  223.010571]  ? __might_sleep+0x95/0x190
[  223.014554]  __alloc_pages_nodemask+0xad8/0xea0
[  223.019233]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  223.024248]  ? __page_cache_alloc+0x191/0x5c0
[  223.028746]  ? xa_load+0x2e1/0x460
[  223.032291]  ? xa_clear_mark+0x40/0x40
[  223.036182]  ? zap_class+0x640/0x640
[  223.039919]  ? zap_class+0x640/0x640
[  223.043629]  ? zap_class+0x640/0x640
[  223.047339]  ? __do_page_cache_readahead+0x663/0x810
[  223.052449]  ? find_held_lock+0x36/0x1c0
[  223.056517]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  223.062060]  alloc_pages_current+0x173/0x350
[  223.066483]  __page_cache_alloc+0x38c/0x5c0
[  223.070831]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  223.075763]  ? kasan_check_read+0x11/0x20
[  223.079911]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  223.085187]  ? generic_perform_write+0x6a0/0x6a0
[  223.089943]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  223.095477]  ? check_preemption_disabled+0x48/0x280
[  223.100511]  filemap_fault+0x1595/0x25f0
[  223.104587]  ? __lock_page_or_retry+0xa00/0xa00
[  223.109255]  ? mark_held_locks+0x130/0x130
[  223.113510]  ? filemap_map_pages+0xd6b/0x1a20
[  223.118006]  ? lock_downgrade+0x900/0x900
[  223.122152]  ? check_preemption_disabled+0x48/0x280
[  223.127170]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  223.132117]  ? kasan_check_read+0x11/0x20
[  223.136262]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  223.141537]  ? rcu_softirq_qs+0x20/0x20
[  223.145536]  ? filemap_map_pages+0xd92/0x1a20
[  223.150048]  ? find_get_entries_tag+0x1400/0x1400
[  223.154902]  ? debug_object_destroy+0x2b0/0x2b0
[  223.159575]  ? lock_pi_update_atomic+0x150/0x150
[  223.164345]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.169914]  ? lock_acquire+0x1ed/0x520
[  223.173898]  ? ext4_filemap_fault+0x7a/0xad
[  223.178225]  ? lock_release+0xa00/0xa00
[  223.182201]  ? perf_trace_sched_process_exec+0x860/0x860
[  223.187656]  ? print_usage_bug+0xc0/0xc0
[  223.191717]  ? print_usage_bug+0xc0/0xc0
[  223.195806]  ? down_read+0x8d/0x120
[  223.199430]  ? ext4_filemap_fault+0x7a/0xad
[  223.203755]  ? __down_interruptible+0x700/0x700
[  223.208436]  ext4_filemap_fault+0x82/0xad
[  223.212582]  __do_fault+0x100/0x6b0
[  223.216219]  ? find_held_lock+0x36/0x1c0
[  223.220297]  ? pmd_devmap_trans_unstable+0x220/0x220
[  223.225445]  ? mark_held_locks+0x130/0x130
[  223.229677]  ? mark_held_locks+0x130/0x130
[  223.233908]  ? _raw_spin_unlock_irq+0x27/0x80
[  223.238405]  ? _raw_spin_unlock_irq+0x27/0x80
[  223.242910]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  223.247494]  ? kasan_check_read+0x11/0x20
[  223.251647]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  223.257194]  __handle_mm_fault+0x3ea0/0x5be0
[  223.261625]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  223.266496]  ? finish_task_switch+0x1f4/0x910
[  223.270990]  ? finish_task_switch+0x1b4/0x910
[  223.275486]  ? __switch_to_asm+0x34/0x70
[  223.279547]  ? preempt_notifier_register+0x200/0x200
[  223.284644]  ? __switch_to_asm+0x34/0x70
[  223.288703]  ? __switch_to_asm+0x34/0x70
[  223.292774]  ? zap_class+0x640/0x640
[  223.296483]  ? zap_class+0x640/0x640
[  223.300194]  ? __x64_sys_futex+0x53e/0x6a0
[  223.304429]  ? find_held_lock+0x36/0x1c0
[  223.308512]  ? handle_mm_fault+0x42a/0xc70
[  223.312750]  ? lock_downgrade+0x900/0x900
[  223.316914]  ? check_preemption_disabled+0x48/0x280
[  223.321959]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  223.326891]  ? kasan_check_read+0x11/0x20
[  223.331053]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  223.336339]  ? rcu_softirq_qs+0x20/0x20
[  223.340311]  ? trace_hardirqs_off_caller+0x310/0x310
[  223.345419]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  223.350957]  ? check_preemption_disabled+0x48/0x280
[  223.355979]  handle_mm_fault+0x54f/0xc70
[  223.360049]  ? __handle_mm_fault+0x5be0/0x5be0
[  223.364634]  ? find_vma+0x34/0x190
[  223.368181]  __do_page_fault+0x5e8/0xe60
[  223.372243]  ? trace_hardirqs_off+0xb8/0x310
[  223.376662]  do_page_fault+0xf2/0x7e0
[  223.380464]  ? vmalloc_sync_all+0x30/0x30
[  223.384614]  ? error_entry+0x70/0xd0
[  223.388329]  ? trace_hardirqs_off_caller+0xbb/0x310
[  223.393344]  ? trace_hardirqs_on_caller+0xc0/0x310
[  223.398277]  ? syscall_return_slowpath+0x5e0/0x5e0
[  223.403202]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  223.408043]  ? trace_hardirqs_on_caller+0x310/0x310
[  223.413077]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  223.418546]  ? prepare_exit_to_usermode+0x291/0x3b0
[  223.423564]  ? page_fault+0x8/0x30
[  223.427106]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  223.431950]  ? page_fault+0x8/0x30
[  223.435495]  page_fault+0x1e/0x30
[  223.438945] RIP: 0033:0x40f9c0
[  223.442148] Code: Bad RIP value.
[  223.445510] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  223.450890] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  223.458166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  223.465697] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  223.472965] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  223.480264] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  223.487554] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  223.487618] aoe: skb alloc failure
[  223.494310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  223.494318] Call Trace:
[  223.497926] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  223.507224]  dump_stack+0x244/0x39d
[  223.509783] syz-fuzzer cpuset=/ mems_allowed=0
[  223.520001]  ? dump_stack_print_info.cold.1+0x20/0x20
[  223.533417]  warn_alloc.cold.116+0xb7/0x1bd
[  223.537743]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  223.542587]  ? lock_downgrade+0x900/0x900
[  223.546738]  ? trace_hardirqs_off+0xb8/0x310
[  223.551148]  ? trace_hardirqs_off+0xb8/0x310
[  223.555584]  __alloc_pages_slowpath+0x2651/0x2de0
[  223.560472]  ? warn_alloc+0x120/0x120
[  223.564279]  ? print_usage_bug+0xc0/0xc0
[  223.568342]  ? warn_alloc+0x120/0x120
[  223.572148]  ? warn_alloc+0x120/0x120
[  223.575950]  ? print_usage_bug+0xc0/0xc0
[  223.580029]  ? print_usage_bug+0xc0/0xc0
[  223.584094]  ? print_usage_bug+0xc0/0xc0
[  223.588157]  ? __lock_acquire+0x62f/0x4c20
[  223.592398]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  223.597933]  ? should_fail+0x22d/0xd01
[  223.601818]  ? __lock_acquire+0x62f/0x4c20
[  223.606059]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  223.611177]  ? __lock_acquire+0x62f/0x4c20
[  223.615476]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  223.620580]  ? __lock_acquire+0x62f/0x4c20
[  223.624811]  ? should_fail+0x22d/0xd01
[  223.628707]  ? mark_held_locks+0x130/0x130
[  223.632948]  ? mark_held_locks+0x130/0x130
[  223.637183]  ? zap_class+0x640/0x640
[  223.640906]  ? zap_class+0x640/0x640
[  223.644621]  ? print_usage_bug+0xc0/0xc0
[  223.648681]  ? do_raw_spin_unlock+0xa7/0x330
[  223.653087]  ? zap_class+0x640/0x640
[  223.656803]  ? print_usage_bug+0xc0/0xc0
[  223.660862]  ? wq_watchdog_touch+0x9c/0xfe
[  223.665119]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.670656]  ? check_preemption_disabled+0x48/0x280
[  223.675683]  ? __lock_is_held+0xb5/0x140
[  223.679748]  __alloc_pages_nodemask+0xad8/0xea0
[  223.684419]  ? zap_class+0x640/0x640
[  223.688136]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  223.693164]  ? find_held_lock+0x36/0x1c0
[  223.697234]  ? ____cache_alloc_node+0x1c7/0x1e0
[  223.701928]  ? lock_downgrade+0x900/0x900
[  223.706082]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.711636]  cache_grow_begin+0xa5/0x8c0
[  223.715696]  ? do_raw_spin_unlock+0xa7/0x330
[  223.720112]  fallback_alloc+0x204/0x2e0
[  223.724123]  ____cache_alloc_node+0x1c7/0x1e0
[  223.728624]  kmem_cache_alloc_node+0xe3/0x730
[  223.733121]  ? ipv6_get_ifaddr+0x42e/0x620
[  223.737382]  __alloc_skb+0x119/0x770
[  223.741096]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  223.746377]  ? netdev_alloc_frag+0x1f0/0x1f0
[  223.750787]  ? lock_downgrade+0x900/0x900
[  223.754964]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.760506]  ? refcount_sub_and_test_checked+0x203/0x310
[  223.765961]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  223.771418]  ? addrconf_rs_timer+0x690/0x690
[  223.775838]  ndisc_alloc_skb+0x144/0x340
[  223.779915]  ndisc_send_rs+0x331/0x6e0
[  223.783829]  addrconf_rs_timer+0x314/0x690
[  223.788068]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  223.792320]  call_timer_fn+0x272/0x920
[  223.796206]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  223.800445]  ? process_timeout+0x40/0x40
[  223.804525]  ? __run_timers+0x7da/0xc70
[  223.808516]  ? _raw_spin_unlock_irq+0x27/0x80
[  223.813007]  ? _raw_spin_unlock_irq+0x27/0x80
[  223.817499]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  223.821733]  ? lockdep_hardirqs_on+0x296/0x5b0
[  223.826315]  ? trace_hardirqs_on+0xbd/0x310
[  223.830638]  ? kasan_check_read+0x11/0x20
[  223.834785]  ? __run_timers+0x7da/0xc70
[  223.838762]  ? trace_hardirqs_off_caller+0x310/0x310
[  223.843896]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  223.848133]  __run_timers+0x7e5/0xc70
[  223.851945]  ? timer_fixup_init+0x70/0x70
[  223.856090]  ? _raw_spin_unlock_irq+0x27/0x80
[  223.860581]  ? _raw_spin_unlock_irq+0x27/0x80
[  223.865078]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  223.869668]  ? trace_hardirqs_on+0xbd/0x310
[  223.873989]  ? kasan_check_read+0x11/0x20
[  223.878141]  ? finish_task_switch+0x1f4/0x910
[  223.882642]  ? trace_hardirqs_off_caller+0x310/0x310
[  223.887746]  ? compat_start_thread+0x80/0x80
[  223.892175]  ? pvclock_read_flags+0x160/0x160
[  223.896674]  ? __switch_to_asm+0x34/0x70
[  223.900738]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.906279]  ? check_preemption_disabled+0x48/0x280
[  223.911308]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  223.916845]  ? rcu_pm_notify+0xc0/0xc0
[  223.920746]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.926289]  ? check_preemption_disabled+0x48/0x280
[  223.931314]  run_timer_softirq+0x52/0xb0
[  223.935376]  ? rcu_read_lock_sched_held+0x14f/0x180
[  223.940392]  __do_softirq+0x308/0xb7e
[  223.944198]  ? trace_hardirqs_on_caller+0xc0/0x310
[  223.949132]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  223.954263]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  223.959729]  ? trace_hardirqs_on+0x310/0x310
[  223.964154]  ? schedule+0x108/0x460
[  223.967792]  ? trace_hardirqs_off+0xb8/0x310
[  223.972214]  ? smpboot_thread_fn+0x68b/0xa00
[  223.976624]  ? trace_hardirqs_on+0x310/0x310
[  223.981033]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  223.986574]  ? check_preemption_disabled+0x48/0x280
[  223.991593]  ? takeover_tasklets+0xa90/0xa90
[  223.996002]  run_ksoftirqd+0x5e/0x100
[  223.999824]  smpboot_thread_fn+0x68b/0xa00
[  224.004066]  ? sort_range+0x30/0x30
[  224.007699]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  224.012806]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  224.018346]  ? __kthread_parkme+0xfb/0x1a0
[  224.022585]  ? sort_range+0x30/0x30
[  224.026215]  kthread+0x35a/0x440
[  224.029587]  ? kthread_stop+0x900/0x900
[  224.033562]  ret_from_fork+0x3a/0x50
[  224.037291] warn_alloc_show_mem: 1 callbacks suppressed
[  224.037303] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  224.037305] Mem-Info:
[  224.037336] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  224.037336]  active_file:12 inactive_file:14 isolated_file:0
[  224.037336]  unevictable:0 dirty:0 writeback:0 unstable:0
[  224.037336]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  224.037336]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  224.037336]  free:13757 free_pcp:113 free_cma:0
[  224.042670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  224.049597] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  224.051999] Call Trace:
[  224.085042] 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
[  224.094393]  <IRQ>
[  224.122232] lowmem_reserve[]: 0 2818 6321 6321
[  224.124831]  dump_stack+0x244/0x39d
[  224.150921] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  224.153108]  ? dump_stack_print_info.cold.1+0x20/0x20
[  224.157655] lowmem_reserve[]: 0 0 3503 3503
[  224.161293]  warn_alloc.cold.116+0xb7/0x1bd
[  224.188774] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  224.193979]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  224.198268] lowmem_reserve[]: 0 0 0 0
[  224.202590]  ? lock_downgrade+0x900/0x900
[  224.231634] 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
[  224.236484]  ? trace_hardirqs_off+0xb8/0x310
[  224.240254] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  224.244404]  ? trace_hardirqs_off+0xb8/0x310
[  224.257906] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  224.262323]  __alloc_pages_slowpath+0x2651/0x2de0
[  224.277820] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  224.282242]  ? warn_alloc+0x120/0x120
[  224.296766] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  224.301607]  ? warn_alloc+0x120/0x120
[  224.310414] 4236 total pagecache pages
[  224.314207]  ? warn_alloc+0x120/0x120
[  224.322767] 0 pages in swap cache
[  224.326560]  ? print_usage_bug+0xc0/0xc0
[  224.330423] Swap cache stats: add 0, delete 0, find 0/0
[  224.334217]  ? print_usage_bug+0xc0/0xc0
[  224.337644] Free swap  = 0kB
[  224.341701]  ? ktime_get+0x2c1/0x400
[  224.347041] Total swap = 0kB
[  224.351104]  ? check_preemption_disabled+0x48/0x280
[  224.354092] 1965979 pages RAM
[  224.357803]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  224.360793] 0 pages HighMem/MovableOnly
[  224.360801] 342854 pages reserved
[  224.365810]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  224.368902] 0 pages cma reserved
[  224.373394]  ? should_fail+0x22d/0xd01
[  224.377457] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  224.380792]  ? kasan_check_read+0x11/0x20
[  224.386387] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  224.389666]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  224.393529] ksoftirqd/0 cpuset=/ mems_allowed=0
[  224.400021]  ? __lock_acquire+0x62f/0x4c20
[  224.428422]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  224.433892]  ? should_fail+0x22d/0xd01
[  224.437783]  ? print_usage_bug+0xc0/0xc0
[  224.441852]  ? mark_held_locks+0x130/0x130
[  224.446097]  ? mark_held_locks+0x130/0x130
[  224.450336]  ? check_preemption_disabled+0x48/0x280
[  224.455359]  ? zap_class+0x640/0x640
[  224.459078]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  224.463836]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.469385]  ? check_preemption_disabled+0x48/0x280
[  224.474414]  ? __lock_is_held+0xb5/0x140
[  224.478482]  __alloc_pages_nodemask+0xad8/0xea0
[  224.483152]  ? zap_class+0x640/0x640
[  224.486887]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  224.491928]  ? find_held_lock+0x36/0x1c0
[  224.496000]  ? ____cache_alloc_node+0x1c7/0x1e0
[  224.500686]  ? lock_downgrade+0x900/0x900
[  224.504861]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.510425]  cache_grow_begin+0xa5/0x8c0
[  224.514501]  ? do_raw_spin_unlock+0xa7/0x330
[  224.518932]  fallback_alloc+0x204/0x2e0
[  224.522920]  ____cache_alloc_node+0x1c7/0x1e0
[  224.527423]  kmem_cache_alloc_node+0xe3/0x730
[  224.531925]  ? lockdep_hardirqs_on+0x296/0x5b0
[  224.536531]  __alloc_skb+0x119/0x770
[  224.540246]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  224.545610]  ? netdev_alloc_frag+0x1f0/0x1f0
[  224.550027]  ? vprintk_default+0x28/0x30
[  224.554089]  ? vprintk_func+0x85/0x181
[  224.557977]  ? printk+0xa7/0xcf
[  224.561255]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  224.566455]  new_skb+0x26/0x1c0
[  224.569739]  aoecmd_cfg+0x279/0x7f0
[  224.573370]  ? find_held_lock+0x36/0x1c0
[  224.577442]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  224.581771]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.587323]  ? __lock_is_held+0xb5/0x140
[  224.591403]  discover_timer+0x50/0x60
[  224.595207]  call_timer_fn+0x272/0x920
[  224.599101]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  224.603954]  ? process_timeout+0x40/0x40
[  224.608024]  ? mark_held_locks+0xc7/0x130
[  224.612172]  ? _raw_spin_unlock_irq+0x27/0x80
[  224.616664]  ? _raw_spin_unlock_irq+0x27/0x80
[  224.621157]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  224.625998]  ? lockdep_hardirqs_on+0x296/0x5b0
[  224.630587]  ? trace_hardirqs_on+0xbd/0x310
[  224.634916]  ? kasan_check_read+0x11/0x20
[  224.639065]  ? __run_timers+0x7da/0xc70
[  224.643043]  ? trace_hardirqs_off_caller+0x310/0x310
[  224.648163]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  224.653008]  __run_timers+0x7e5/0xc70
[  224.656824]  ? timer_fixup_init+0x70/0x70
[  224.660981]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  224.666002]  ? zap_class+0x640/0x640
[  224.669725]  ? print_usage_bug+0xc0/0xc0
[  224.673791]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  224.678993]  ? find_held_lock+0x36/0x1c0
[  224.683065]  ? zap_class+0x640/0x640
[  224.686790]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.692337]  ? check_preemption_disabled+0x48/0x280
[  224.697376]  ? __lock_is_held+0xb5/0x140
[  224.701447]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.706987]  ? check_preemption_disabled+0x48/0x280
[  224.712023]  run_timer_softirq+0x52/0xb0
[  224.716089]  ? rcu_read_lock_sched_held+0x14f/0x180
[  224.721108]  __do_softirq+0x308/0xb7e
[  224.724914]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  224.729411]  ? lock_downgrade+0x900/0x900
[  224.733568]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  224.738680]  ? pvclock_read_flags+0x160/0x160
[  224.743178]  ? lapic_next_event+0x5a/0x90
[  224.747328]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.752881]  ? kvm_clock_read+0x18/0x30
[  224.756860]  ? kvm_sched_clock_read+0x9/0x20
[  224.761281]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  224.766820]  ? check_preemption_disabled+0x48/0x280
[  224.771848]  irq_exit+0x17f/0x1c0
[  224.775319]  smp_apic_timer_interrupt+0x1cb/0x760
[  224.780164]  ? smp_call_function_single_interrupt+0x159/0x650
[  224.786056]  ? smp_call_function_single_interrupt+0x650/0x650
[  224.791943]  ? interrupt_entry+0xb5/0xc0
[  224.796006]  ? trace_hardirqs_off_caller+0xbb/0x310
[  224.801022]  ? trace_hardirqs_off_caller+0xbb/0x310
[  224.806046]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  224.810901]  ? trace_hardirqs_on_caller+0x310/0x310
[  224.815920]  ? trace_hardirqs_on_caller+0x310/0x310
[  224.820944]  ? task_prio+0x50/0x50
[  224.824493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.830032]  ? check_preemption_disabled+0x48/0x280
[  224.835056]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  224.839918]  apic_timer_interrupt+0xf/0x20
[  224.844145]  </IRQ>
[  224.846391] RIP: 0010:dump_stack+0x358/0x39d
[  224.850804] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  224.869723] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  224.877433] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  224.884698] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  224.891967] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  224.899235] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  224.906507] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  224.913801]  ? dump_stack+0x34f/0x39d
[  224.917617]  ? dump_stack_print_info.cold.1+0x20/0x20
[  224.922812]  ? mark_held_locks+0x130/0x130
[  224.927050]  ? mark_held_locks+0x130/0x130
[  224.931294]  dump_header+0x27b/0xf72
[  224.935023]  ? pagefault_out_of_memory+0x197/0x197
[  224.939964]  ? __lock_acquire+0x62f/0x4c20
[  224.944203]  ? percpu_ref_get_many+0x240/0x240
[  224.948792]  ? print_usage_bug+0xc0/0xc0
[  224.952861]  ? zap_class+0x640/0x640
[  224.956586]  ? print_usage_bug+0xc0/0xc0
[  224.960649]  ? print_usage_bug+0xc0/0xc0
[  224.964712]  ? zap_class+0x640/0x640
[  224.968436]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.973979]  ? find_held_lock+0x36/0x1c0
[  224.978052]  ? mark_held_locks+0xc7/0x130
[  224.982201]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  224.987302]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  224.992412]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  224.997001]  ? trace_hardirqs_on+0xbd/0x310
[  225.001322]  ? kasan_check_read+0x11/0x20
[  225.005472]  ? ___ratelimit+0x3b4/0x672
[  225.009455]  ? trace_hardirqs_off_caller+0x310/0x310
[  225.014565]  ? trace_hardirqs_on+0x310/0x310
[  225.018978]  ? lock_downgrade+0x900/0x900
[  225.023133]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  225.028240]  ? ___ratelimit+0x3b9/0x672
[  225.032216]  ? idr_get_free+0xf70/0xf70
[  225.036196]  ? find_held_lock+0x36/0x1c0
[  225.040270]  oom_kill_process.cold.27+0x10/0x903
[  225.045030]  ? zap_class+0x640/0x640
[  225.048745]  ? check_preemption_disabled+0x48/0x280
[  225.053764]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  225.058697]  ? kasan_check_read+0x11/0x20
[  225.062847]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  225.068138]  ? oom_evaluate_task+0x540/0x540
[  225.072551]  ? find_held_lock+0x36/0x1c0
[  225.076620]  ? out_of_memory+0x974/0x1430
[  225.080772]  ? lock_downgrade+0x900/0x900
[  225.084935]  ? check_preemption_disabled+0x48/0x280
[  225.089955]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  225.094909]  ? kasan_check_read+0x11/0x20
[  225.099055]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  225.104336]  ? rcu_softirq_qs+0x20/0x20
[  225.108319]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  225.113861]  ? oom_evaluate_task+0x302/0x540
[  225.118288]  out_of_memory+0xa84/0x1430
[  225.122271]  ? oom_killer_disable+0x3a0/0x3a0
[  225.126769]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  225.131702]  ? __ww_mutex_check_waiters+0x160/0x160
[  225.136730]  __alloc_pages_slowpath+0x232c/0x2de0
[  225.141605]  ? warn_alloc+0x120/0x120
[  225.145410]  ? mark_held_locks+0x130/0x130
[  225.149654]  ? find_get_entry+0xaae/0x1120
[  225.153904]  ? filemap_map_pages+0x1a20/0x1a20
[  225.158495]  ? zap_class+0x640/0x640
[  225.162223]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.167764]  ? check_preemption_disabled+0x48/0x280
[  225.172788]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  225.178331]  ? should_fail+0x22d/0xd01
[  225.182226]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  225.187346]  ? zap_class+0x640/0x640
[  225.191089]  ? __lock_is_held+0xb5/0x140
[  225.195156]  ? mark_held_locks+0x130/0x130
[  225.199403]  ? lock_release+0xa00/0xa00
[  225.203378]  ? perf_trace_sched_process_exec+0x860/0x860
[  225.208838]  ? xa_load+0x2ba/0x460
[  225.212390]  ? lock_downgrade+0x900/0x900
[  225.216547]  ? __might_sleep+0x95/0x190
[  225.220530]  __alloc_pages_nodemask+0xad8/0xea0
[  225.225212]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  225.230235]  ? __page_cache_alloc+0x191/0x5c0
[  225.234732]  ? xa_load+0x2e1/0x460
[  225.238274]  ? xa_clear_mark+0x40/0x40
[  225.242170]  ? zap_class+0x640/0x640
[  225.245901]  ? zap_class+0x640/0x640
[  225.249617]  ? zap_class+0x640/0x640
[  225.253337]  ? __do_page_cache_readahead+0x663/0x810
[  225.258447]  ? find_held_lock+0x36/0x1c0
[  225.262520]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  225.268068]  alloc_pages_current+0x173/0x350
[  225.272484]  __page_cache_alloc+0x38c/0x5c0
[  225.276806]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  225.281736]  ? kasan_check_read+0x11/0x20
[  225.285890]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  225.291179]  ? generic_perform_write+0x6a0/0x6a0
[  225.295938]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  225.301478]  ? check_preemption_disabled+0x48/0x280
[  225.306503]  filemap_fault+0x1595/0x25f0
[  225.310582]  ? __lock_page_or_retry+0xa00/0xa00
[  225.315257]  ? mark_held_locks+0x130/0x130
[  225.319500]  ? filemap_map_pages+0xd6b/0x1a20
[  225.324009]  ? lock_downgrade+0x900/0x900
[  225.328158]  ? check_preemption_disabled+0x48/0x280
[  225.333177]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  225.338109]  ? kasan_check_read+0x11/0x20
[  225.342259]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  225.347537]  ? rcu_softirq_qs+0x20/0x20
[  225.351529]  ? filemap_map_pages+0xd92/0x1a20
[  225.356039]  ? find_get_entries_tag+0x1400/0x1400
[  225.360896]  ? debug_object_destroy+0x2b0/0x2b0
[  225.365570]  ? lock_pi_update_atomic+0x150/0x150
[  225.370330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.375903]  ? lock_acquire+0x1ed/0x520
[  225.379888]  ? ext4_filemap_fault+0x7a/0xad
[  225.384219]  ? lock_release+0xa00/0xa00
[  225.388191]  ? perf_trace_sched_process_exec+0x860/0x860
[  225.393647]  ? print_usage_bug+0xc0/0xc0
[  225.397712]  ? print_usage_bug+0xc0/0xc0
[  225.401784]  ? down_read+0x8d/0x120
[  225.405411]  ? ext4_filemap_fault+0x7a/0xad
[  225.409739]  ? __down_interruptible+0x700/0x700
[  225.414427]  ext4_filemap_fault+0x82/0xad
[  225.418580]  __do_fault+0x100/0x6b0
[  225.422210]  ? find_held_lock+0x36/0x1c0
[  225.426277]  ? pmd_devmap_trans_unstable+0x220/0x220
[  225.431392]  ? mark_held_locks+0x130/0x130
[  225.435629]  ? mark_held_locks+0x130/0x130
[  225.439865]  ? _raw_spin_unlock_irq+0x27/0x80
[  225.444369]  ? _raw_spin_unlock_irq+0x27/0x80
[  225.448885]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  225.453475]  ? kasan_check_read+0x11/0x20
[  225.457629]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  225.463171]  __handle_mm_fault+0x3ea0/0x5be0
[  225.467597]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  225.472444]  ? finish_task_switch+0x1f4/0x910
[  225.476941]  ? finish_task_switch+0x1b4/0x910
[  225.481439]  ? __switch_to_asm+0x34/0x70
[  225.485505]  ? preempt_notifier_register+0x200/0x200
[  225.490605]  ? __switch_to_asm+0x34/0x70
[  225.494666]  ? __switch_to_asm+0x34/0x70
[  225.498742]  ? zap_class+0x640/0x640
[  225.502457]  ? zap_class+0x640/0x640
[  225.506178]  ? __x64_sys_futex+0x53e/0x6a0
[  225.510423]  ? find_held_lock+0x36/0x1c0
[  225.514497]  ? handle_mm_fault+0x42a/0xc70
[  225.518739]  ? lock_downgrade+0x900/0x900
[  225.523403]  ? check_preemption_disabled+0x48/0x280
[  225.528423]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  225.533352]  ? kasan_check_read+0x11/0x20
[  225.537505]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  225.542781]  ? rcu_softirq_qs+0x20/0x20
[  225.546767]  ? trace_hardirqs_off_caller+0x310/0x310
[  225.551884]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  225.557430]  ? check_preemption_disabled+0x48/0x280
[  225.562718]  handle_mm_fault+0x54f/0xc70
[  225.566785]  ? __handle_mm_fault+0x5be0/0x5be0
[  225.571377]  ? find_vma+0x34/0x190
[  225.574929]  __do_page_fault+0x5e8/0xe60
[  225.578990]  ? trace_hardirqs_off+0xb8/0x310
[  225.583416]  do_page_fault+0xf2/0x7e0
[  225.587218]  ? vmalloc_sync_all+0x30/0x30
[  225.591367]  ? error_entry+0x70/0xd0
[  225.595088]  ? trace_hardirqs_off_caller+0xbb/0x310
[  225.600106]  ? trace_hardirqs_on_caller+0xc0/0x310
[  225.605036]  ? syscall_return_slowpath+0x5e0/0x5e0
[  225.609965]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  225.614815]  ? trace_hardirqs_on_caller+0x310/0x310
[  225.619844]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  225.625313]  ? prepare_exit_to_usermode+0x291/0x3b0
[  225.630330]  ? page_fault+0x8/0x30
[  225.633887]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  225.638732]  ? page_fault+0x8/0x30
[  225.642272]  page_fault+0x1e/0x30
[  225.645724] RIP: 0033:0x40f9c0
[  225.648945] Code: Bad RIP value.
[  225.652307] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  225.657668] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  225.664933] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  225.672202] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  225.679467] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  225.686728] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  225.694024] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  225.694097] aoe: skb alloc failure
[  225.700781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  225.700786] Call Trace:
[  225.700810]  dump_stack+0x244/0x39d
[  225.700828]  ? dump_stack_print_info.cold.1+0x20/0x20
[  225.704389] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  225.713712]  warn_alloc.cold.116+0xb7/0x1bd
[  225.716261] syz-fuzzer cpuset=/ mems_allowed=0
[  225.719903]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  225.748987]  ? lock_downgrade+0x900/0x900
[  225.753147]  ? trace_hardirqs_off+0xb8/0x310
[  225.757563]  ? trace_hardirqs_off+0xb8/0x310
[  225.761984]  __alloc_pages_slowpath+0x2651/0x2de0
[  225.766856]  ? warn_alloc+0x120/0x120
[  225.770676]  ? print_usage_bug+0xc0/0xc0
[  225.774740]  ? warn_alloc+0x120/0x120
[  225.778545]  ? warn_alloc+0x120/0x120
[  225.782353]  ? print_usage_bug+0xc0/0xc0
[  225.786420]  ? print_usage_bug+0xc0/0xc0
[  225.790484]  ? __lock_acquire+0x62f/0x4c20
[  225.794724]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  225.800261]  ? should_fail+0x22d/0xd01
[  225.804155]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  225.809257]  ? __lock_acquire+0x62f/0x4c20
[  225.813497]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  225.818598]  ? __lock_acquire+0x62f/0x4c20
[  225.822835]  ? should_fail+0x22d/0xd01
[  225.826731]  ? find_held_lock+0x36/0x1c0
[  225.830798]  ? mark_held_locks+0x130/0x130
[  225.835043]  ? mark_held_locks+0x130/0x130
[  225.839278]  ? zap_class+0x640/0x640
[  225.843000]  ? mark_held_locks+0xc7/0x130
[  225.847148]  ? do_raw_spin_unlock+0xa7/0x330
[  225.851558]  ? zap_class+0x640/0x640
[  225.855270]  ? print_usage_bug+0xc0/0xc0
[  225.859337]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.864893]  ? check_preemption_disabled+0x48/0x280
[  225.869923]  ? __lock_is_held+0xb5/0x140
[  225.873994]  __alloc_pages_nodemask+0xad8/0xea0
[  225.878664]  ? zap_class+0x640/0x640
[  225.882382]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  225.887408]  ? find_held_lock+0x36/0x1c0
[  225.891483]  ? ____cache_alloc_node+0x1c7/0x1e0
[  225.896158]  ? lock_downgrade+0x900/0x900
[  225.900315]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.905861]  cache_grow_begin+0xa5/0x8c0
[  225.909940]  ? do_raw_spin_unlock+0xa7/0x330
[  225.914360]  fallback_alloc+0x204/0x2e0
[  225.918340]  ____cache_alloc_node+0x1c7/0x1e0
[  225.922844]  kmem_cache_alloc_node+0xe3/0x730
[  225.927353]  ? ipv6_get_ifaddr+0x42e/0x620
[  225.931598]  __alloc_skb+0x119/0x770
[  225.935314]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  225.940610]  ? netdev_alloc_frag+0x1f0/0x1f0
[  225.945017]  ? lock_downgrade+0x900/0x900
[  225.949173]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.954713]  ? refcount_sub_and_test_checked+0x203/0x310
[  225.960168]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  225.965619]  ? addrconf_rs_timer+0x690/0x690
[  225.970042]  ndisc_alloc_skb+0x144/0x340
[  225.974108]  ndisc_send_rs+0x331/0x6e0
[  225.978002]  addrconf_rs_timer+0x314/0x690
[  225.982245]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  225.986492]  call_timer_fn+0x272/0x920
[  225.990378]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  225.994617]  ? process_timeout+0x40/0x40
[  225.998687]  ? __run_timers+0x7da/0xc70
[  226.002665]  ? _raw_spin_unlock_irq+0x27/0x80
[  226.007158]  ? _raw_spin_unlock_irq+0x27/0x80
[  226.011655]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  226.015904]  ? lockdep_hardirqs_on+0x296/0x5b0
[  226.020493]  ? trace_hardirqs_on+0xbd/0x310
[  226.024814]  ? kasan_check_read+0x11/0x20
[  226.028962]  ? __run_timers+0x7da/0xc70
[  226.032942]  ? trace_hardirqs_off_caller+0x310/0x310
[  226.038083]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  226.042324]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  226.046558]  __run_timers+0x7e5/0xc70
[  226.050371]  ? timer_fixup_init+0x70/0x70
[  226.054522]  ? _raw_spin_unlock_irq+0x27/0x80
[  226.059015]  ? _raw_spin_unlock_irq+0x27/0x80
[  226.063514]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  226.068135]  ? trace_hardirqs_on+0xbd/0x310
[  226.072462]  ? kasan_check_read+0x11/0x20
[  226.076612]  ? finish_task_switch+0x1f4/0x910
[  226.081112]  ? trace_hardirqs_off_caller+0x310/0x310
[  226.086232]  ? compat_start_thread+0x80/0x80
[  226.090661]  ? pvclock_read_flags+0x160/0x160
[  226.095155]  ? __switch_to_asm+0x34/0x70
[  226.099241]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.104785]  ? check_preemption_disabled+0x48/0x280
[  226.109813]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  226.115353]  ? rcu_pm_notify+0xc0/0xc0
[  226.119251]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.124793]  ? check_preemption_disabled+0x48/0x280
[  226.129822]  run_timer_softirq+0x52/0xb0
[  226.133903]  ? rcu_read_lock_sched_held+0x14f/0x180
[  226.138924]  __do_softirq+0x308/0xb7e
[  226.142732]  ? trace_hardirqs_on_caller+0xc0/0x310
[  226.147669]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  226.152772]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  226.158225]  ? trace_hardirqs_on+0x310/0x310
[  226.162648]  ? schedule+0x108/0x460
[  226.166288]  ? trace_hardirqs_off+0xb8/0x310
[  226.170699]  ? smpboot_thread_fn+0x68b/0xa00
[  226.175113]  ? trace_hardirqs_on+0x310/0x310
[  226.179524]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  226.185069]  ? check_preemption_disabled+0x48/0x280
[  226.190095]  ? takeover_tasklets+0xa90/0xa90
[  226.194513]  run_ksoftirqd+0x5e/0x100
[  226.198328]  smpboot_thread_fn+0x68b/0xa00
[  226.202578]  ? sort_range+0x30/0x30
[  226.206236]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  226.211346]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  226.216902]  ? __kthread_parkme+0xfb/0x1a0
[  226.221146]  ? sort_range+0x30/0x30
[  226.224774]  kthread+0x35a/0x440
[  226.228155]  ? kthread_stop+0x900/0x900
[  226.232140]  ret_from_fork+0x3a/0x50
[  226.235877] warn_alloc_show_mem: 1 callbacks suppressed
[  226.235889] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  226.235890] Mem-Info:
[  226.235921] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  226.235921]  active_file:12 inactive_file:14 isolated_file:0
[  226.235921]  unevictable:0 dirty:0 writeback:0 unstable:0
[  226.235921]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  226.235921]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  226.235921]  free:13757 free_pcp:113 free_cma:0
[  226.241260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  226.248193] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  226.250591] Call Trace:
[  226.283643] 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
[  226.292993]  <IRQ>
[  226.320835] lowmem_reserve[]: 0 2818 6321 6321
[  226.323423]  dump_stack+0x244/0x39d
[  226.349520] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  226.351679]  ? dump_stack_print_info.cold.1+0x20/0x20
[  226.356228] lowmem_reserve[]: 0 0 3503 3503
[  226.359859]  warn_alloc.cold.116+0xb7/0x1bd
[  226.387349] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  226.392542]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  226.396832] lowmem_reserve[]: 0 0 0 0
[  226.401152]  ? lock_downgrade+0x900/0x900
[  226.430196] 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
[  226.435209]  ? trace_hardirqs_off+0xb8/0x310
[  226.438987] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  226.443131]  ? trace_hardirqs_off+0xb8/0x310
[  226.456633] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  226.461064]  __alloc_pages_slowpath+0x2651/0x2de0
[  226.476570] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  226.481007]  ? warn_alloc+0x120/0x120
[  226.495555] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  226.500416]  ? warn_alloc+0x120/0x120
[  226.509240] 4236 total pagecache pages
[  226.513075]  ? __lock_acquire+0x62f/0x4c20
[  226.521655] 0 pages in swap cache
[  226.525467]  ? warn_alloc+0x120/0x120
[  226.529330] Swap cache stats: add 0, delete 0, find 0/0
[  226.529340] Free swap  = 0kB
[  226.533571]  ? print_usage_bug+0xc0/0xc0
[  226.536993] Total swap = 0kB
[  226.537001] 1965979 pages RAM
[  226.540805]  ? print_usage_bug+0xc0/0xc0
[  226.546141] 0 pages HighMem/MovableOnly
[  226.549159]  ? mark_held_locks+0x130/0x130
[  226.553191] 342854 pages reserved
[  226.553200] 0 pages cma reserved
[  226.556220]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  226.559366] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  226.563856]  ? should_fail+0x22d/0xd01
[  226.567948] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  226.572049]  ? zap_class+0x640/0x640
[  226.575476] ksoftirqd/0 cpuset=/ mems_allowed=0
[  226.578847]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  226.618480]  ? __lock_acquire+0x62f/0x4c20
[  226.622729]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  226.627841]  ? should_fail+0x22d/0xd01
[  226.631767]  ? mark_held_locks+0x130/0x130
[  226.636012]  ? mark_held_locks+0x130/0x130
[  226.640253]  ? lock_downgrade+0x900/0x900
[  226.644413]  ? zap_class+0x640/0x640
[  226.648135]  ? zap_class+0x640/0x640
[  226.651860]  ? zap_class+0x640/0x640
[  226.655588]  ? do_raw_spin_unlock+0xa7/0x330
[  226.660001]  ? trace_hardirqs_on+0x310/0x310
[  226.664414]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.669971]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.675610]  ? check_preemption_disabled+0x48/0x280
[  226.680646]  ? __lock_is_held+0xb5/0x140
[  226.684719]  __alloc_pages_nodemask+0xad8/0xea0
[  226.689401]  ? zap_class+0x640/0x640
[  226.693129]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  226.698163]  ? find_held_lock+0x36/0x1c0
[  226.702241]  ? ____cache_alloc_node+0x1c7/0x1e0
[  226.706918]  ? lock_downgrade+0x900/0x900
[  226.711079]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.716631]  cache_grow_begin+0xa5/0x8c0
[  226.720700]  ? do_raw_spin_unlock+0xa7/0x330
[  226.725121]  fallback_alloc+0x204/0x2e0
[  226.729108]  ____cache_alloc_node+0x1c7/0x1e0
[  226.733612]  kmem_cache_alloc_node+0xe3/0x730
[  226.738129]  ? lockdep_hardirqs_on+0x296/0x5b0
[  226.742724]  __alloc_skb+0x119/0x770
[  226.746439]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  226.751812]  ? netdev_alloc_frag+0x1f0/0x1f0
[  226.756228]  ? vprintk_default+0x28/0x30
[  226.760291]  ? vprintk_func+0x85/0x181
[  226.764182]  ? printk+0xa7/0xcf
[  226.767466]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  226.772234]  new_skb+0x26/0x1c0
[  226.775521]  aoecmd_cfg+0x279/0x7f0
[  226.779156]  ? find_held_lock+0x36/0x1c0
[  226.783224]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  226.787555]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.793124]  ? __lock_is_held+0xb5/0x140
[  226.797197]  discover_timer+0x50/0x60
[  226.800998]  call_timer_fn+0x272/0x920
[  226.804891]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  226.809742]  ? process_timeout+0x40/0x40
[  226.813812]  ? mark_held_locks+0xc7/0x130
[  226.817962]  ? _raw_spin_unlock_irq+0x27/0x80
[  226.822459]  ? _raw_spin_unlock_irq+0x27/0x80
[  226.826968]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  226.831813]  ? lockdep_hardirqs_on+0x296/0x5b0
[  226.836416]  ? trace_hardirqs_on+0xbd/0x310
[  226.840752]  ? kasan_check_read+0x11/0x20
[  226.844908]  ? __run_timers+0x7da/0xc70
[  226.848892]  ? trace_hardirqs_off_caller+0x310/0x310
[  226.854013]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  226.858855]  __run_timers+0x7e5/0xc70
[  226.862680]  ? timer_fixup_init+0x70/0x70
[  226.866831]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  226.871853]  ? zap_class+0x640/0x640
[  226.875589]  ? print_usage_bug+0xc0/0xc0
[  226.879653]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  226.884853]  ? find_held_lock+0x36/0x1c0
[  226.888928]  ? zap_class+0x640/0x640
[  226.892651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.898190]  ? check_preemption_disabled+0x48/0x280
[  226.903218]  ? __lock_is_held+0xb5/0x140
[  226.907282]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.912823]  ? check_preemption_disabled+0x48/0x280
[  226.917845]  run_timer_softirq+0x52/0xb0
[  226.921918]  ? rcu_read_lock_sched_held+0x14f/0x180
[  226.926946]  __do_softirq+0x308/0xb7e
[  226.930758]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  226.935259]  ? lock_downgrade+0x900/0x900
[  226.939419]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  226.944538]  ? pvclock_read_flags+0x160/0x160
[  226.949039]  ? lapic_next_event+0x5a/0x90
[  226.953189]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.959165]  ? kvm_clock_read+0x18/0x30
[  226.963145]  ? kvm_sched_clock_read+0x9/0x20
[  226.967556]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  226.973097]  ? check_preemption_disabled+0x48/0x280
[  226.978124]  irq_exit+0x17f/0x1c0
[  226.981581]  smp_apic_timer_interrupt+0x1cb/0x760
[  226.986426]  ? smp_call_function_single_interrupt+0x159/0x650
[  226.992313]  ? smp_call_function_single_interrupt+0x650/0x650
[  226.998200]  ? interrupt_entry+0xb5/0xc0
[  227.002277]  ? trace_hardirqs_off_caller+0xbb/0x310
[  227.007300]  ? trace_hardirqs_off_caller+0xbb/0x310
[  227.012330]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  227.017186]  ? trace_hardirqs_on_caller+0x310/0x310
[  227.022210]  ? trace_hardirqs_on_caller+0x310/0x310
[  227.027233]  ? task_prio+0x50/0x50
[  227.030790]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.036344]  ? check_preemption_disabled+0x48/0x280
[  227.041378]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  227.046247]  apic_timer_interrupt+0xf/0x20
[  227.050477]  </IRQ>
[  227.052717] RIP: 0010:dump_stack+0x358/0x39d
[  227.057134] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  227.076076] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  227.083802] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  227.091096] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  227.098384] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  227.105664] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  227.112947] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  227.120243]  ? dump_stack+0x34f/0x39d
[  227.124119]  ? dump_stack_print_info.cold.1+0x20/0x20
[  227.129330]  ? mark_held_locks+0x130/0x130
[  227.133572]  ? mark_held_locks+0x130/0x130
[  227.137823]  dump_header+0x27b/0xf72
[  227.141552]  ? pagefault_out_of_memory+0x197/0x197
[  227.146494]  ? __lock_acquire+0x62f/0x4c20
[  227.150739]  ? percpu_ref_get_many+0x240/0x240
[  227.155334]  ? print_usage_bug+0xc0/0xc0
[  227.159411]  ? zap_class+0x640/0x640
[  227.163132]  ? print_usage_bug+0xc0/0xc0
[  227.167196]  ? print_usage_bug+0xc0/0xc0
[  227.171264]  ? zap_class+0x640/0x640
[  227.174989]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.180532]  ? find_held_lock+0x36/0x1c0
[  227.184605]  ? mark_held_locks+0xc7/0x130
[  227.188755]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  227.193857]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  227.198970]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  227.203556]  ? trace_hardirqs_on+0xbd/0x310
[  227.207885]  ? kasan_check_read+0x11/0x20
[  227.212039]  ? ___ratelimit+0x3b4/0x672
[  227.216016]  ? trace_hardirqs_off_caller+0x310/0x310
[  227.221124]  ? trace_hardirqs_on+0x310/0x310
[  227.225533]  ? lock_downgrade+0x900/0x900
[  227.229688]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  227.234793]  ? ___ratelimit+0x3b9/0x672
[  227.238773]  ? idr_get_free+0xf70/0xf70
[  227.242752]  ? find_held_lock+0x36/0x1c0
[  227.246829]  oom_kill_process.cold.27+0x10/0x903
[  227.251587]  ? zap_class+0x640/0x640
[  227.255303]  ? check_preemption_disabled+0x48/0x280
[  227.260325]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  227.265262]  ? kasan_check_read+0x11/0x20
[  227.269418]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  227.274699]  ? oom_evaluate_task+0x540/0x540
[  227.279128]  ? find_held_lock+0x36/0x1c0
[  227.283216]  ? out_of_memory+0x974/0x1430
[  227.287387]  ? lock_downgrade+0x900/0x900
[  227.291542]  ? check_preemption_disabled+0x48/0x280
[  227.296563]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  227.301669]  ? kasan_check_read+0x11/0x20
[  227.305823]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  227.311101]  ? rcu_softirq_qs+0x20/0x20
[  227.315085]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  227.320623]  ? oom_evaluate_task+0x302/0x540
[  227.325041]  out_of_memory+0xa84/0x1430
[  227.329030]  ? oom_killer_disable+0x3a0/0x3a0
[  227.333544]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  227.338476]  ? __ww_mutex_check_waiters+0x160/0x160
[  227.343514]  __alloc_pages_slowpath+0x232c/0x2de0
[  227.348395]  ? warn_alloc+0x120/0x120
[  227.352197]  ? mark_held_locks+0x130/0x130
[  227.356439]  ? find_get_entry+0xaae/0x1120
[  227.360682]  ? filemap_map_pages+0x1a20/0x1a20
[  227.365269]  ? zap_class+0x640/0x640
[  227.368988]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.374527]  ? check_preemption_disabled+0x48/0x280
[  227.379551]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  227.385091]  ? should_fail+0x22d/0xd01
[  227.388985]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  227.394094]  ? zap_class+0x640/0x640
[  227.397835]  ? __lock_is_held+0xb5/0x140
[  227.401914]  ? mark_held_locks+0x130/0x130
[  227.406152]  ? lock_release+0xa00/0xa00
[  227.410132]  ? perf_trace_sched_process_exec+0x860/0x860
[  227.415584]  ? xa_load+0x2ba/0x460
[  227.419127]  ? lock_downgrade+0x900/0x900
[  227.423290]  ? __might_sleep+0x95/0x190
[  227.427273]  __alloc_pages_nodemask+0xad8/0xea0
[  227.431954]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  227.436971]  ? __page_cache_alloc+0x191/0x5c0
[  227.441469]  ? xa_load+0x2e1/0x460
[  227.445022]  ? xa_clear_mark+0x40/0x40
[  227.448915]  ? zap_class+0x640/0x640
[  227.452640]  ? zap_class+0x640/0x640
[  227.456367]  ? zap_class+0x640/0x640
[  227.460091]  ? __do_page_cache_readahead+0x663/0x810
[  227.465203]  ? find_held_lock+0x36/0x1c0
[  227.469273]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  227.474820]  alloc_pages_current+0x173/0x350
[  227.479240]  __page_cache_alloc+0x38c/0x5c0
[  227.483568]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  227.488504]  ? kasan_check_read+0x11/0x20
[  227.492658]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  227.497954]  ? generic_perform_write+0x6a0/0x6a0
[  227.502718]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  227.508265]  ? check_preemption_disabled+0x48/0x280
[  227.513300]  filemap_fault+0x1595/0x25f0
[  227.517389]  ? __lock_page_or_retry+0xa00/0xa00
[  227.522064]  ? mark_held_locks+0x130/0x130
[  227.526309]  ? filemap_map_pages+0xd6b/0x1a20
[  227.530806]  ? lock_downgrade+0x900/0x900
[  227.534959]  ? check_preemption_disabled+0x48/0x280
[  227.539987]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  227.544931]  ? kasan_check_read+0x11/0x20
[  227.549094]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  227.554372]  ? rcu_softirq_qs+0x20/0x20
[  227.558366]  ? filemap_map_pages+0xd92/0x1a20
[  227.562896]  ? find_get_entries_tag+0x1400/0x1400
[  227.567758]  ? debug_object_destroy+0x2b0/0x2b0
[  227.572435]  ? lock_pi_update_atomic+0x150/0x150
[  227.577195]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.582755]  ? lock_acquire+0x1ed/0x520
[  227.586735]  ? ext4_filemap_fault+0x7a/0xad
[  227.591066]  ? lock_release+0xa00/0xa00
[  227.595043]  ? perf_trace_sched_process_exec+0x860/0x860
[  227.600507]  ? print_usage_bug+0xc0/0xc0
[  227.604580]  ? print_usage_bug+0xc0/0xc0
[  227.608654]  ? down_read+0x8d/0x120
[  227.612285]  ? ext4_filemap_fault+0x7a/0xad
[  227.616611]  ? __down_interruptible+0x700/0x700
[  227.621294]  ext4_filemap_fault+0x82/0xad
[  227.625453]  __do_fault+0x100/0x6b0
[  227.629079]  ? find_held_lock+0x36/0x1c0
[  227.633143]  ? pmd_devmap_trans_unstable+0x220/0x220
[  227.638249]  ? mark_held_locks+0x130/0x130
[  227.642486]  ? mark_held_locks+0x130/0x130
[  227.646722]  ? _raw_spin_unlock_irq+0x27/0x80
[  227.651217]  ? _raw_spin_unlock_irq+0x27/0x80
[  227.655717]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  227.660307]  ? kasan_check_read+0x11/0x20
[  227.664508]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  227.670054]  __handle_mm_fault+0x3ea0/0x5be0
[  227.674477]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  227.679327]  ? finish_task_switch+0x1f4/0x910
[  227.683826]  ? finish_task_switch+0x1b4/0x910
[  227.688321]  ? __switch_to_asm+0x34/0x70
[  227.692391]  ? preempt_notifier_register+0x200/0x200
[  227.697492]  ? __switch_to_asm+0x34/0x70
[  227.701552]  ? __switch_to_asm+0x34/0x70
[  227.705629]  ? zap_class+0x640/0x640
[  227.709341]  ? zap_class+0x640/0x640
[  227.713056]  ? __x64_sys_futex+0x53e/0x6a0
[  227.717295]  ? find_held_lock+0x36/0x1c0
[  227.721366]  ? handle_mm_fault+0x42a/0xc70
[  227.725605]  ? lock_downgrade+0x900/0x900
[  227.729753]  ? check_preemption_disabled+0x48/0x280
[  227.734785]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  227.739712]  ? kasan_check_read+0x11/0x20
[  227.743862]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  227.749153]  ? rcu_softirq_qs+0x20/0x20
[  227.753128]  ? trace_hardirqs_off_caller+0x310/0x310
[  227.758241]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  227.763796]  ? check_preemption_disabled+0x48/0x280
[  227.768819]  handle_mm_fault+0x54f/0xc70
[  227.772895]  ? __handle_mm_fault+0x5be0/0x5be0
[  227.777496]  ? find_vma+0x34/0x190
[  227.781042]  __do_page_fault+0x5e8/0xe60
[  227.785111]  ? trace_hardirqs_off+0xb8/0x310
[  227.789533]  do_page_fault+0xf2/0x7e0
[  227.793336]  ? vmalloc_sync_all+0x30/0x30
[  227.797485]  ? error_entry+0x70/0xd0
[  227.801199]  ? trace_hardirqs_off_caller+0xbb/0x310
[  227.806215]  ? trace_hardirqs_on_caller+0xc0/0x310
[  227.811143]  ? syscall_return_slowpath+0x5e0/0x5e0
[  227.816070]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  227.820913]  ? trace_hardirqs_on_caller+0x310/0x310
[  227.825933]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  227.831397]  ? prepare_exit_to_usermode+0x291/0x3b0
[  227.836413]  ? page_fault+0x8/0x30
[  227.839960]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  227.844808]  ? page_fault+0x8/0x30
[  227.848348]  page_fault+0x1e/0x30
[  227.851802] RIP: 0033:0x40f9c0
[  227.855006] Code: Bad RIP value.
[  227.858371] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  227.863740] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  227.871013] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  227.878279] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  227.885548] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  227.892817] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  227.900112] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  227.900176] aoe: skb alloc failure
[  227.906887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  227.906892] Call Trace:
[  227.906918]  dump_stack+0x244/0x39d
[  227.906937]  ? dump_stack_print_info.cold.1+0x20/0x20
[  227.910510] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  227.919831]  warn_alloc.cold.116+0xb7/0x1bd
[  227.922388] syz-fuzzer cpuset=/ mems_allowed=0
[  227.926006]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  227.955093]  ? lock_downgrade+0x900/0x900
[  227.959252]  ? trace_hardirqs_off+0xb8/0x310
[  227.963668]  ? trace_hardirqs_off+0xb8/0x310
[  227.968089]  __alloc_pages_slowpath+0x2651/0x2de0
[  227.972964]  ? warn_alloc+0x120/0x120
[  227.976771]  ? print_usage_bug+0xc0/0xc0
[  227.980834]  ? warn_alloc+0x120/0x120
[  227.984645]  ? warn_alloc+0x120/0x120
[  227.988450]  ? print_usage_bug+0xc0/0xc0
[  227.992514]  ? print_usage_bug+0xc0/0xc0
[  227.996578]  ? __lock_acquire+0x62f/0x4c20
[  228.000824]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  228.006365]  ? should_fail+0x22d/0xd01
[  228.010261]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  228.015369]  ? __lock_acquire+0x62f/0x4c20
[  228.019611]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  228.024717]  ? __lock_acquire+0x62f/0x4c20
[  228.028949]  ? should_fail+0x22d/0xd01
[  228.032839]  ? find_held_lock+0x36/0x1c0
[  228.036927]  ? mark_held_locks+0x130/0x130
[  228.041170]  ? mark_held_locks+0x130/0x130
[  228.045408]  ? zap_class+0x640/0x640
[  228.049133]  ? mark_held_locks+0xc7/0x130
[  228.053286]  ? do_raw_spin_unlock+0xa7/0x330
[  228.057695]  ? zap_class+0x640/0x640
[  228.061409]  ? print_usage_bug+0xc0/0xc0
[  228.065479]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.071020]  ? check_preemption_disabled+0x48/0x280
[  228.076049]  ? __lock_is_held+0xb5/0x140
[  228.080121]  __alloc_pages_nodemask+0xad8/0xea0
[  228.084798]  ? zap_class+0x640/0x640
[  228.088524]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  228.093559]  ? find_held_lock+0x36/0x1c0
[  228.097631]  ? ____cache_alloc_node+0x1c7/0x1e0
[  228.102307]  ? lock_downgrade+0x900/0x900
[  228.106467]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.112012]  cache_grow_begin+0xa5/0x8c0
[  228.116078]  ? do_raw_spin_unlock+0xa7/0x330
[  228.120497]  fallback_alloc+0x204/0x2e0
[  228.124482]  ____cache_alloc_node+0x1c7/0x1e0
[  228.128990]  kmem_cache_alloc_node+0xe3/0x730
[  228.133486]  ? ipv6_get_ifaddr+0x42e/0x620
[  228.137730]  __alloc_skb+0x119/0x770
[  228.141443]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  228.146728]  ? netdev_alloc_frag+0x1f0/0x1f0
[  228.151139]  ? lock_downgrade+0x900/0x900
[  228.155293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.160832]  ? refcount_sub_and_test_checked+0x203/0x310
[  228.166290]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  228.171740]  ? addrconf_rs_timer+0x690/0x690
[  228.176163]  ndisc_alloc_skb+0x144/0x340
[  228.180229]  ndisc_send_rs+0x331/0x6e0
[  228.184125]  addrconf_rs_timer+0x314/0x690
[  228.188367]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.192613]  call_timer_fn+0x272/0x920
[  228.196510]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.200751]  ? process_timeout+0x40/0x40
[  228.204823]  ? __run_timers+0x7da/0xc70
[  228.208801]  ? _raw_spin_unlock_irq+0x27/0x80
[  228.213294]  ? _raw_spin_unlock_irq+0x27/0x80
[  228.217788]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.222024]  ? lockdep_hardirqs_on+0x296/0x5b0
[  228.226620]  ? trace_hardirqs_on+0xbd/0x310
[  228.230950]  ? kasan_check_read+0x11/0x20
[  228.235101]  ? __run_timers+0x7da/0xc70
[  228.239086]  ? trace_hardirqs_off_caller+0x310/0x310
[  228.244196]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.248436]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.252672]  __run_timers+0x7e5/0xc70
[  228.256483]  ? timer_fixup_init+0x70/0x70
[  228.260641]  ? _raw_spin_unlock_irq+0x27/0x80
[  228.265137]  ? _raw_spin_unlock_irq+0x27/0x80
[  228.269637]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  228.274223]  ? trace_hardirqs_on+0xbd/0x310
[  228.278545]  ? kasan_check_read+0x11/0x20
[  228.282699]  ? finish_task_switch+0x1f4/0x910
[  228.287207]  ? trace_hardirqs_off_caller+0x310/0x310
[  228.292312]  ? compat_start_thread+0x80/0x80
[  228.296741]  ? pvclock_read_flags+0x160/0x160
[  228.301233]  ? __switch_to_asm+0x34/0x70
[  228.305295]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.310833]  ? check_preemption_disabled+0x48/0x280
[  228.315859]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  228.321412]  ? rcu_pm_notify+0xc0/0xc0
[  228.325311]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.330946]  ? check_preemption_disabled+0x48/0x280
[  228.335966]  run_timer_softirq+0x52/0xb0
[  228.340030]  ? rcu_read_lock_sched_held+0x14f/0x180
[  228.345046]  __do_softirq+0x308/0xb7e
[  228.348852]  ? trace_hardirqs_on_caller+0xc0/0x310
[  228.353801]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  228.358912]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  228.364368]  ? trace_hardirqs_on+0x310/0x310
[  228.368783]  ? schedule+0x108/0x460
[  228.372420]  ? trace_hardirqs_off+0xb8/0x310
[  228.376830]  ? smpboot_thread_fn+0x68b/0xa00
[  228.381244]  ? trace_hardirqs_on+0x310/0x310
[  228.385656]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  228.391210]  ? check_preemption_disabled+0x48/0x280
[  228.396236]  ? takeover_tasklets+0xa90/0xa90
[  228.400646]  run_ksoftirqd+0x5e/0x100
[  228.404454]  smpboot_thread_fn+0x68b/0xa00
[  228.408698]  ? sort_range+0x30/0x30
[  228.412327]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  228.417446]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  228.422992]  ? __kthread_parkme+0xfb/0x1a0
[  228.427231]  ? sort_range+0x30/0x30
[  228.431380]  kthread+0x35a/0x440
[  228.434750]  ? kthread_stop+0x900/0x900
[  228.438727]  ret_from_fork+0x3a/0x50
[  228.442458] warn_alloc_show_mem: 1 callbacks suppressed
[  228.442470] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  228.442472] Mem-Info:
[  228.442502] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  228.442502]  active_file:12 inactive_file:14 isolated_file:0
[  228.442502]  unevictable:0 dirty:0 writeback:0 unstable:0
[  228.442502]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  228.442502]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  228.442502]  free:13757 free_pcp:113 free_cma:0
[  228.447838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  228.447846] Call Trace:
[  228.454790] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  228.457196]  <IRQ>
[  228.490246] 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
[  228.499608]  dump_stack+0x244/0x39d
[  228.502163] lowmem_reserve[]: 0 2818 6321 6321
[  228.530035]  ? dump_stack_print_info.cold.1+0x20/0x20
[  228.532159] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  228.558279]  warn_alloc.cold.116+0xb7/0x1bd
[  228.562063] lowmem_reserve[]: 0 0 3503 3503
[  228.566974]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  228.572143] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  228.599645]  ? lock_downgrade+0x900/0x900
[  228.603940] lowmem_reserve[]: 0 0 0 0
[  228.608262]  ? trace_hardirqs_off+0xb8/0x310
[  228.613079] 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
[  228.642138]  ? trace_hardirqs_off+0xb8/0x310
[  228.646261] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  228.650059]  __alloc_pages_slowpath+0x2651/0x2de0
[  228.654435] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  228.667974]  ? warn_alloc+0x120/0x120
[  228.672341] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  228.687851]  ? warn_alloc+0x120/0x120
[  228.692674] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  228.707232]  ? __lock_acquire+0x62f/0x4c20
[  228.711006] 4236 total pagecache pages
[  228.719840]  ? warn_alloc+0x120/0x120
[  228.723623] 0 pages in swap cache
[  228.732187]  ? print_usage_bug+0xc0/0xc0
[  228.736398] Swap cache stats: add 0, delete 0, find 0/0
[  228.740278]  ? print_usage_bug+0xc0/0xc0
[  228.744053] Free swap  = 0kB
[  228.747503]  ? mark_held_locks+0x130/0x130
[  228.751542] Total swap = 0kB
[  228.756907]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  228.760944] 1965979 pages RAM
[  228.763957]  ? should_fail+0x22d/0xd01
[  228.768167] 0 pages HighMem/MovableOnly
[  228.771178]  ? zap_class+0x640/0x640
[  228.776686] 342854 pages reserved
[  228.779789]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  228.783649] 0 pages cma reserved
[  228.783761] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  228.787629]  ? __lock_acquire+0x62f/0x4c20
[  228.787648]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  228.787663]  ? should_fail+0x22d/0xd01
[  228.791427] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  228.794818]  ? mark_held_locks+0x130/0x130
[  228.799905] ksoftirqd/0 cpuset=/ mems_allowed=0
[  228.803270]  ? mark_held_locks+0x130/0x130
[  228.846393]  ? lock_downgrade+0x900/0x900
[  228.850559]  ? zap_class+0x640/0x640
[  228.854280]  ? zap_class+0x640/0x640
[  228.857998]  ? zap_class+0x640/0x640
[  228.861731]  ? do_raw_spin_unlock+0xa7/0x330
[  228.866146]  ? trace_hardirqs_on+0x310/0x310
[  228.870555]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.876098]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.881649]  ? check_preemption_disabled+0x48/0x280
[  228.886680]  ? __lock_is_held+0xb5/0x140
[  228.890754]  __alloc_pages_nodemask+0xad8/0xea0
[  228.895436]  ? zap_class+0x640/0x640
[  228.899158]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  228.904202]  ? find_held_lock+0x36/0x1c0
[  228.908283]  ? ____cache_alloc_node+0x1c7/0x1e0
[  228.912962]  ? lock_downgrade+0x900/0x900
[  228.917125]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.922670]  cache_grow_begin+0xa5/0x8c0
[  228.926736]  ? do_raw_spin_unlock+0xa7/0x330
[  228.931150]  fallback_alloc+0x204/0x2e0
[  228.935134]  ____cache_alloc_node+0x1c7/0x1e0
[  228.939639]  kmem_cache_alloc_node+0xe3/0x730
[  228.944143]  ? lockdep_hardirqs_on+0x296/0x5b0
[  228.948744]  __alloc_skb+0x119/0x770
[  228.952461]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  228.957831]  ? netdev_alloc_frag+0x1f0/0x1f0
[  228.962251]  ? vprintk_default+0x28/0x30
[  228.966316]  ? vprintk_func+0x85/0x181
[  228.970206]  ? printk+0xa7/0xcf
[  228.973488]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  228.978253]  new_skb+0x26/0x1c0
[  228.981535]  aoecmd_cfg+0x279/0x7f0
[  228.985166]  ? find_held_lock+0x36/0x1c0
[  228.989233]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  228.993562]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.999110]  ? __lock_is_held+0xb5/0x140
[  229.003182]  discover_timer+0x50/0x60
[  229.006981]  call_timer_fn+0x272/0x920
[  229.010877]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  229.015719]  ? process_timeout+0x40/0x40
[  229.019792]  ? mark_held_locks+0xc7/0x130
[  229.023941]  ? _raw_spin_unlock_irq+0x27/0x80
[  229.028433]  ? _raw_spin_unlock_irq+0x27/0x80
[  229.032927]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  229.037776]  ? lockdep_hardirqs_on+0x296/0x5b0
[  229.042364]  ? trace_hardirqs_on+0xbd/0x310
[  229.046694]  ? kasan_check_read+0x11/0x20
[  229.050840]  ? __run_timers+0x7da/0xc70
[  229.054824]  ? trace_hardirqs_off_caller+0x310/0x310
[  229.059941]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  229.064785]  __run_timers+0x7e5/0xc70
[  229.068599]  ? timer_fixup_init+0x70/0x70
[  229.072748]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  229.077770]  ? zap_class+0x640/0x640
[  229.081492]  ? print_usage_bug+0xc0/0xc0
[  229.085561]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  229.090757]  ? find_held_lock+0x36/0x1c0
[  229.094822]  ? zap_class+0x640/0x640
[  229.098542]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.104092]  ? check_preemption_disabled+0x48/0x280
[  229.109122]  ? __lock_is_held+0xb5/0x140
[  229.113186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.118725]  ? check_preemption_disabled+0x48/0x280
[  229.123752]  run_timer_softirq+0x52/0xb0
[  229.127813]  ? rcu_read_lock_sched_held+0x14f/0x180
[  229.132830]  __do_softirq+0x308/0xb7e
[  229.136638]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  229.141133]  ? lock_downgrade+0x900/0x900
[  229.145283]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  229.150398]  ? pvclock_read_flags+0x160/0x160
[  229.154904]  ? lapic_next_event+0x5a/0x90
[  229.159055]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.164596]  ? kvm_clock_read+0x18/0x30
[  229.168572]  ? kvm_sched_clock_read+0x9/0x20
[  229.172990]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.178536]  ? check_preemption_disabled+0x48/0x280
[  229.183566]  irq_exit+0x17f/0x1c0
[  229.187029]  smp_apic_timer_interrupt+0x1cb/0x760
[  229.191880]  ? smp_call_function_single_interrupt+0x159/0x650
[  229.197783]  ? smp_call_function_single_interrupt+0x650/0x650
[  229.203669]  ? interrupt_entry+0xb5/0xc0
[  229.207737]  ? trace_hardirqs_off_caller+0xbb/0x310
[  229.212755]  ? trace_hardirqs_off_caller+0xbb/0x310
[  229.217777]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  229.222624]  ? trace_hardirqs_on_caller+0x310/0x310
[  229.227644]  ? trace_hardirqs_on_caller+0x310/0x310
[  229.232667]  ? task_prio+0x50/0x50
[  229.236220]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.241763]  ? check_preemption_disabled+0x48/0x280
[  229.246793]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  229.251649]  apic_timer_interrupt+0xf/0x20
[  229.255884]  </IRQ>
[  229.258128] RIP: 0010:dump_stack+0x358/0x39d
[  229.262539] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  229.281448] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  229.289159] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  229.296433] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  229.303707] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  229.310982] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  229.318251] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  229.325549]  ? dump_stack+0x34f/0x39d
[  229.329366]  ? dump_stack_print_info.cold.1+0x20/0x20
[  229.334565]  ? mark_held_locks+0x130/0x130
[  229.338804]  ? mark_held_locks+0x130/0x130
[  229.343049]  dump_header+0x27b/0xf72
[  229.346776]  ? pagefault_out_of_memory+0x197/0x197
[  229.351715]  ? __lock_acquire+0x62f/0x4c20
[  229.355957]  ? percpu_ref_get_many+0x240/0x240
[  229.360553]  ? print_usage_bug+0xc0/0xc0
[  229.364624]  ? zap_class+0x640/0x640
[  229.368340]  ? print_usage_bug+0xc0/0xc0
[  229.372402]  ? print_usage_bug+0xc0/0xc0
[  229.376471]  ? zap_class+0x640/0x640
[  229.380189]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.385732]  ? find_held_lock+0x36/0x1c0
[  229.389801]  ? mark_held_locks+0xc7/0x130
[  229.393954]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  229.399060]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  229.404167]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  229.408750]  ? trace_hardirqs_on+0xbd/0x310
[  229.413074]  ? kasan_check_read+0x11/0x20
[  229.417222]  ? ___ratelimit+0x3b4/0x672
[  229.421200]  ? trace_hardirqs_off_caller+0x310/0x310
[  229.426307]  ? trace_hardirqs_on+0x310/0x310
[  229.430717]  ? lock_downgrade+0x900/0x900
[  229.434881]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  229.439996]  ? ___ratelimit+0x3b9/0x672
[  229.443976]  ? idr_get_free+0xf70/0xf70
[  229.447949]  ? find_held_lock+0x36/0x1c0
[  229.452020]  oom_kill_process.cold.27+0x10/0x903
[  229.456782]  ? zap_class+0x640/0x640
[  229.460495]  ? check_preemption_disabled+0x48/0x280
[  229.465516]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  229.470444]  ? kasan_check_read+0x11/0x20
[  229.474596]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  229.479882]  ? oom_evaluate_task+0x540/0x540
[  229.484301]  ? find_held_lock+0x36/0x1c0
[  229.488370]  ? out_of_memory+0x974/0x1430
[  229.492522]  ? lock_downgrade+0x900/0x900
[  229.496671]  ? check_preemption_disabled+0x48/0x280
[  229.501693]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  229.506629]  ? kasan_check_read+0x11/0x20
[  229.510780]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  229.516058]  ? rcu_softirq_qs+0x20/0x20
[  229.520046]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.525581]  ? oom_evaluate_task+0x302/0x540
[  229.529997]  out_of_memory+0xa84/0x1430
[  229.533985]  ? oom_killer_disable+0x3a0/0x3a0
[  229.538483]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  229.543422]  ? __ww_mutex_check_waiters+0x160/0x160
[  229.548454]  __alloc_pages_slowpath+0x232c/0x2de0
[  229.553329]  ? warn_alloc+0x120/0x120
[  229.557134]  ? mark_held_locks+0x130/0x130
[  229.561384]  ? find_get_entry+0xaae/0x1120
[  229.565630]  ? filemap_map_pages+0x1a20/0x1a20
[  229.570223]  ? zap_class+0x640/0x640
[  229.573948]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.579490]  ? check_preemption_disabled+0x48/0x280
[  229.584511]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.590058]  ? should_fail+0x22d/0xd01
[  229.593957]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  229.599062]  ? zap_class+0x640/0x640
[  229.602802]  ? __lock_is_held+0xb5/0x140
[  229.606877]  ? mark_held_locks+0x130/0x130
[  229.611116]  ? lock_release+0xa00/0xa00
[  229.615092]  ? perf_trace_sched_process_exec+0x860/0x860
[  229.620542]  ? xa_load+0x2ba/0x460
[  229.624085]  ? lock_downgrade+0x900/0x900
[  229.628239]  ? __might_sleep+0x95/0x190
[  229.632218]  __alloc_pages_nodemask+0xad8/0xea0
[  229.636901]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  229.641927]  ? __page_cache_alloc+0x191/0x5c0
[  229.646430]  ? xa_load+0x2e1/0x460
[  229.649986]  ? xa_clear_mark+0x40/0x40
[  229.653893]  ? zap_class+0x640/0x640
[  229.657617]  ? zap_class+0x640/0x640
[  229.661331]  ? zap_class+0x640/0x640
[  229.665048]  ? __do_page_cache_readahead+0x663/0x810
[  229.670181]  ? find_held_lock+0x36/0x1c0
[  229.674252]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  229.679799]  alloc_pages_current+0x173/0x350
[  229.684221]  __page_cache_alloc+0x38c/0x5c0
[  229.688584]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  229.693516]  ? kasan_check_read+0x11/0x20
[  229.697666]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  229.702952]  ? generic_perform_write+0x6a0/0x6a0
[  229.707708]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.713252]  ? check_preemption_disabled+0x48/0x280
[  229.718275]  filemap_fault+0x1595/0x25f0
[  229.722350]  ? __lock_page_or_retry+0xa00/0xa00
[  229.727046]  ? mark_held_locks+0x130/0x130
[  229.731292]  ? filemap_map_pages+0xd6b/0x1a20
[  229.735788]  ? lock_downgrade+0x900/0x900
[  229.739942]  ? check_preemption_disabled+0x48/0x280
[  229.744963]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  229.749905]  ? kasan_check_read+0x11/0x20
[  229.754056]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  229.759333]  ? rcu_softirq_qs+0x20/0x20
[  229.763326]  ? filemap_map_pages+0xd92/0x1a20
[  229.767833]  ? find_get_entries_tag+0x1400/0x1400
[  229.772684]  ? debug_object_destroy+0x2b0/0x2b0
[  229.777363]  ? lock_pi_update_atomic+0x150/0x150
[  229.782130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.787690]  ? lock_acquire+0x1ed/0x520
[  229.791666]  ? ext4_filemap_fault+0x7a/0xad
[  229.795998]  ? lock_release+0xa00/0xa00
[  229.799976]  ? perf_trace_sched_process_exec+0x860/0x860
[  229.805432]  ? print_usage_bug+0xc0/0xc0
[  229.809498]  ? print_usage_bug+0xc0/0xc0
[  229.813575]  ? down_read+0x8d/0x120
[  229.817208]  ? ext4_filemap_fault+0x7a/0xad
[  229.821529]  ? __down_interruptible+0x700/0x700
[  229.826211]  ext4_filemap_fault+0x82/0xad
[  229.830362]  __do_fault+0x100/0x6b0
[  229.833990]  ? find_held_lock+0x36/0x1c0
[  229.838059]  ? pmd_devmap_trans_unstable+0x220/0x220
[  229.843169]  ? mark_held_locks+0x130/0x130
[  229.847407]  ? mark_held_locks+0x130/0x130
[  229.851640]  ? _raw_spin_unlock_irq+0x27/0x80
[  229.856134]  ? _raw_spin_unlock_irq+0x27/0x80
[  229.860633]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  229.865223]  ? kasan_check_read+0x11/0x20
[  229.869372]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.874925]  __handle_mm_fault+0x3ea0/0x5be0
[  229.879343]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  229.884188]  ? finish_task_switch+0x1f4/0x910
[  229.888691]  ? finish_task_switch+0x1b4/0x910
[  229.893189]  ? __switch_to_asm+0x34/0x70
[  229.897254]  ? preempt_notifier_register+0x200/0x200
[  229.902356]  ? __switch_to_asm+0x34/0x70
[  229.906420]  ? __switch_to_asm+0x34/0x70
[  229.910496]  ? zap_class+0x640/0x640
[  229.914208]  ? zap_class+0x640/0x640
[  229.917924]  ? __x64_sys_futex+0x53e/0x6a0
[  229.922162]  ? find_held_lock+0x36/0x1c0
[  229.926232]  ? handle_mm_fault+0x42a/0xc70
[  229.930473]  ? lock_downgrade+0x900/0x900
[  229.934625]  ? check_preemption_disabled+0x48/0x280
[  229.939642]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  229.944576]  ? kasan_check_read+0x11/0x20
[  229.948723]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  229.953999]  ? rcu_softirq_qs+0x20/0x20
[  229.957975]  ? trace_hardirqs_off_caller+0x310/0x310
[  229.963081]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.968629]  ? check_preemption_disabled+0x48/0x280
[  229.973652]  handle_mm_fault+0x54f/0xc70
[  229.977721]  ? __handle_mm_fault+0x5be0/0x5be0
[  229.982311]  ? find_vma+0x34/0x190
[  229.985856]  __do_page_fault+0x5e8/0xe60
[  229.989923]  ? trace_hardirqs_off+0xb8/0x310
[  229.994342]  do_page_fault+0xf2/0x7e0
[  229.998146]  ? vmalloc_sync_all+0x30/0x30
[  230.002296]  ? error_entry+0x70/0xd0
[  230.006014]  ? trace_hardirqs_off_caller+0xbb/0x310
[  230.011035]  ? trace_hardirqs_on_caller+0xc0/0x310
[  230.015971]  ? syscall_return_slowpath+0x5e0/0x5e0
[  230.020908]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  230.025754]  ? trace_hardirqs_on_caller+0x310/0x310
[  230.030772]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  230.036226]  ? prepare_exit_to_usermode+0x291/0x3b0
[  230.041243]  ? page_fault+0x8/0x30
[  230.044789]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  230.049636]  ? page_fault+0x8/0x30
[  230.053180]  page_fault+0x1e/0x30
[  230.056632] RIP: 0033:0x40f9c0
[  230.059839] Code: Bad RIP value.
[  230.063211] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  230.068584] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  230.075852] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  230.083131] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  230.090403] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  230.097670] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  230.104964] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  230.105026] aoe: skb alloc failure
[  230.111718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  230.111727] Call Trace:
[  230.115317] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  230.124619]  dump_stack+0x244/0x39d
[  230.127182] syz-fuzzer cpuset=/ mems_allowed=0
[  230.137415]  ? dump_stack_print_info.cold.1+0x20/0x20
[  230.150787]  warn_alloc.cold.116+0xb7/0x1bd
[  230.155118]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  230.159969]  ? lock_downgrade+0x900/0x900
[  230.164132]  ? trace_hardirqs_off+0xb8/0x310
[  230.168560]  ? trace_hardirqs_off+0xb8/0x310
[  230.172982]  __alloc_pages_slowpath+0x2651/0x2de0
[  230.177862]  ? warn_alloc+0x120/0x120
[  230.181691]  ? print_usage_bug+0xc0/0xc0
[  230.185755]  ? warn_alloc+0x120/0x120
[  230.189562]  ? warn_alloc+0x120/0x120
[  230.193370]  ? print_usage_bug+0xc0/0xc0
[  230.197440]  ? print_usage_bug+0xc0/0xc0
[  230.201507]  ? __lock_acquire+0x62f/0x4c20
[  230.205753]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  230.211291]  ? should_fail+0x22d/0xd01
[  230.215186]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  230.220292]  ? __lock_acquire+0x62f/0x4c20
[  230.224536]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  230.229642]  ? __lock_acquire+0x62f/0x4c20
[  230.233891]  ? should_fail+0x22d/0xd01
[  230.237784]  ? find_held_lock+0x36/0x1c0
[  230.241852]  ? mark_held_locks+0x130/0x130
[  230.246102]  ? mark_held_locks+0x130/0x130
[  230.250339]  ? zap_class+0x640/0x640
[  230.254052]  ? zap_class+0x640/0x640
[  230.257793]  ? print_usage_bug+0xc0/0xc0
[  230.261863]  ? do_raw_spin_unlock+0xa7/0x330
[  230.266290]  ? zap_class+0x640/0x640
[  230.270003]  ? print_usage_bug+0xc0/0xc0
[  230.274063]  ? wq_watchdog_touch+0x9c/0xfe
[  230.278308]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.283848]  ? check_preemption_disabled+0x48/0x280
[  230.288902]  ? __lock_is_held+0xb5/0x140
[  230.292982]  __alloc_pages_nodemask+0xad8/0xea0
[  230.297656]  ? zap_class+0x640/0x640
[  230.301375]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  230.306404]  ? find_held_lock+0x36/0x1c0
[  230.310476]  ? ____cache_alloc_node+0x1c7/0x1e0
[  230.315148]  ? lock_downgrade+0x900/0x900
[  230.319304]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.324851]  cache_grow_begin+0xa5/0x8c0
[  230.328926]  ? do_raw_spin_unlock+0xa7/0x330
[  230.333344]  fallback_alloc+0x204/0x2e0
[  230.337323]  ____cache_alloc_node+0x1c7/0x1e0
[  230.341824]  kmem_cache_alloc_node+0xe3/0x730
[  230.346324]  ? ipv6_get_ifaddr+0x42e/0x620
[  230.350569]  __alloc_skb+0x119/0x770
[  230.354282]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  230.359566]  ? netdev_alloc_frag+0x1f0/0x1f0
[  230.363988]  ? lock_downgrade+0x900/0x900
[  230.368159]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.373705]  ? refcount_sub_and_test_checked+0x203/0x310
[  230.379169]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  230.384637]  ? addrconf_rs_timer+0x690/0x690
[  230.389063]  ndisc_alloc_skb+0x144/0x340
[  230.393128]  ndisc_send_rs+0x331/0x6e0
[  230.397020]  addrconf_rs_timer+0x314/0x690
[  230.401272]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.405521]  call_timer_fn+0x272/0x920
[  230.409425]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.413663]  ? process_timeout+0x40/0x40
[  230.417738]  ? __run_timers+0x7da/0xc70
[  230.421712]  ? _raw_spin_unlock_irq+0x27/0x80
[  230.426207]  ? _raw_spin_unlock_irq+0x27/0x80
[  230.431203]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.435465]  ? lockdep_hardirqs_on+0x296/0x5b0
[  230.440070]  ? trace_hardirqs_on+0xbd/0x310
[  230.444407]  ? kasan_check_read+0x11/0x20
[  230.448554]  ? __run_timers+0x7da/0xc70
[  230.452539]  ? trace_hardirqs_off_caller+0x310/0x310
[  230.457664]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.461916]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.466151]  __run_timers+0x7e5/0xc70
[  230.469967]  ? timer_fixup_init+0x70/0x70
[  230.474115]  ? _raw_spin_unlock_irq+0x27/0x80
[  230.478608]  ? _raw_spin_unlock_irq+0x27/0x80
[  230.483103]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  230.487689]  ? trace_hardirqs_on+0xbd/0x310
[  230.492009]  ? kasan_check_read+0x11/0x20
[  230.496158]  ? finish_task_switch+0x1f4/0x910
[  230.500659]  ? trace_hardirqs_off_caller+0x310/0x310
[  230.505760]  ? compat_start_thread+0x80/0x80
[  230.510193]  ? pvclock_read_flags+0x160/0x160
[  230.514688]  ? __switch_to_asm+0x34/0x70
[  230.518750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.524296]  ? check_preemption_disabled+0x48/0x280
[  230.529328]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  230.534886]  ? rcu_pm_notify+0xc0/0xc0
[  230.538784]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.544331]  ? check_preemption_disabled+0x48/0x280
[  230.549354]  run_timer_softirq+0x52/0xb0
[  230.553449]  ? rcu_read_lock_sched_held+0x14f/0x180
[  230.558473]  __do_softirq+0x308/0xb7e
[  230.562630]  ? trace_hardirqs_on_caller+0xc0/0x310
[  230.567850]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  230.572970]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  230.578426]  ? trace_hardirqs_on+0x310/0x310
[  230.582842]  ? schedule+0x108/0x460
[  230.586497]  ? trace_hardirqs_off+0xb8/0x310
[  230.590923]  ? smpboot_thread_fn+0x68b/0xa00
[  230.595334]  ? trace_hardirqs_on+0x310/0x310
[  230.599747]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  230.605289]  ? check_preemption_disabled+0x48/0x280
[  230.610311]  ? takeover_tasklets+0xa90/0xa90
[  230.614731]  run_ksoftirqd+0x5e/0x100
[  230.618534]  smpboot_thread_fn+0x68b/0xa00
[  230.622778]  ? sort_range+0x30/0x30
[  230.626410]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  230.631519]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  230.637057]  ? __kthread_parkme+0xfb/0x1a0
[  230.641293]  ? sort_range+0x30/0x30
[  230.644921]  kthread+0x35a/0x440
[  230.648293]  ? kthread_stop+0x900/0x900
[  230.652269]  ret_from_fork+0x3a/0x50
[  230.655996] warn_alloc_show_mem: 1 callbacks suppressed
[  230.656007] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  230.656009] Mem-Info:
[  230.656040] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  230.656040]  active_file:12 inactive_file:14 isolated_file:0
[  230.656040]  unevictable:0 dirty:0 writeback:0 unstable:0
[  230.656040]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  230.656040]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  230.656040]  free:13757 free_pcp:113 free_cma:0
[  230.661387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  230.661395] Call Trace:
[  230.668327] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  230.670726]  <IRQ>
[  230.703771] 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
[  230.713135]  dump_stack+0x244/0x39d
[  230.715688] lowmem_reserve[]: 0 2818 6321 6321
[  230.743543]  ? dump_stack_print_info.cold.1+0x20/0x20
[  230.745668] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  230.771790]  warn_alloc.cold.116+0xb7/0x1bd
[  230.775395] lowmem_reserve[]: 0 0 3503 3503
[  230.779976]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  230.785144] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  230.812650]  ? lock_downgrade+0x900/0x900
[  230.816952] lowmem_reserve[]: 0 0 0 0
[  230.821275]  ? trace_hardirqs_off+0xb8/0x310
[  230.826093] 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
[  230.855153]  ? trace_hardirqs_off+0xb8/0x310
[  230.859273] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  230.863074]  __alloc_pages_slowpath+0x2651/0x2de0
[  230.867447] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  230.880993]  ? warn_alloc+0x120/0x120
[  230.885360] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  230.900876]  ? warn_alloc+0x120/0x120
[  230.905721] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  230.920273]  ? warn_alloc+0x120/0x120
[  230.924049] 4236 total pagecache pages
[  230.932885]  ? print_usage_bug+0xc0/0xc0
[  230.936666] 0 pages in swap cache
[  230.945226]  ? print_usage_bug+0xc0/0xc0
[  230.949003] Swap cache stats: add 0, delete 0, find 0/0
[  230.952889]  ? ktime_get+0x2c1/0x400
[  230.956930] Free swap  = 0kB
[  230.960376]  ? check_preemption_disabled+0x48/0x280
[  230.964413] Total swap = 0kB
[  230.969766]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  230.973457] 1965979 pages RAM
[  230.976469]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  230.981460] 0 pages HighMem/MovableOnly
[  230.984477]  ? should_fail+0x22d/0xd01
[  230.988943] 342854 pages reserved
[  230.988952] 0 pages cma reserved
[  230.992054]  ? kasan_check_read+0x11/0x20
[  230.997652] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  231.001555]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  231.005539] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  231.008888]  ? __lock_acquire+0x62f/0x4c20
[  231.012230] ksoftirqd/0 cpuset=/ mems_allowed=0
[  231.016372]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  231.052224]  ? should_fail+0x22d/0xd01
[  231.056119]  ? print_usage_bug+0xc0/0xc0
[  231.060195]  ? mark_held_locks+0x130/0x130
[  231.064435]  ? mark_held_locks+0x130/0x130
[  231.068678]  ? check_preemption_disabled+0x48/0x280
[  231.073715]  ? zap_class+0x640/0x640
[  231.077437]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  231.082465]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.088013]  ? check_preemption_disabled+0x48/0x280
[  231.093054]  ? __lock_is_held+0xb5/0x140
[  231.097132]  __alloc_pages_nodemask+0xad8/0xea0
[  231.101809]  ? zap_class+0x640/0x640
[  231.105529]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  231.110571]  ? find_held_lock+0x36/0x1c0
[  231.114658]  ? ____cache_alloc_node+0x1c7/0x1e0
[  231.119336]  ? lock_downgrade+0x900/0x900
[  231.123499]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.129041]  cache_grow_begin+0xa5/0x8c0
[  231.133107]  ? do_raw_spin_unlock+0xa7/0x330
[  231.137524]  fallback_alloc+0x204/0x2e0
[  231.141503]  ____cache_alloc_node+0x1c7/0x1e0
[  231.146005]  kmem_cache_alloc_node+0xe3/0x730
[  231.150504]  ? lockdep_hardirqs_on+0x296/0x5b0
[  231.155095]  __alloc_skb+0x119/0x770
[  231.158812]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  231.164181]  ? netdev_alloc_frag+0x1f0/0x1f0
[  231.168599]  ? vprintk_default+0x28/0x30
[  231.172659]  ? vprintk_func+0x85/0x181
[  231.176547]  ? printk+0xa7/0xcf
[  231.179829]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  231.184598]  new_skb+0x26/0x1c0
[  231.187885]  aoecmd_cfg+0x279/0x7f0
[  231.191515]  ? find_held_lock+0x36/0x1c0
[  231.195582]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  231.199925]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.205475]  ? __lock_is_held+0xb5/0x140
[  231.209548]  discover_timer+0x50/0x60
[  231.213351]  call_timer_fn+0x272/0x920
[  231.217242]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  231.222083]  ? process_timeout+0x40/0x40
[  231.226153]  ? mark_held_locks+0xc7/0x130
[  231.230303]  ? _raw_spin_unlock_irq+0x27/0x80
[  231.234795]  ? _raw_spin_unlock_irq+0x27/0x80
[  231.239293]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  231.244137]  ? lockdep_hardirqs_on+0x296/0x5b0
[  231.248721]  ? trace_hardirqs_on+0xbd/0x310
[  231.253041]  ? kasan_check_read+0x11/0x20
[  231.257186]  ? __run_timers+0x7da/0xc70
[  231.261165]  ? trace_hardirqs_off_caller+0x310/0x310
[  231.266283]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  231.271121]  __run_timers+0x7e5/0xc70
[  231.274933]  ? timer_fixup_init+0x70/0x70
[  231.279084]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  231.284104]  ? zap_class+0x640/0x640
[  231.287825]  ? print_usage_bug+0xc0/0xc0
[  231.291894]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  231.297094]  ? find_held_lock+0x36/0x1c0
[  231.301160]  ? zap_class+0x640/0x640
[  231.304889]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.310433]  ? check_preemption_disabled+0x48/0x280
[  231.315463]  ? __lock_is_held+0xb5/0x140
[  231.319530]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.325068]  ? check_preemption_disabled+0x48/0x280
[  231.330091]  run_timer_softirq+0x52/0xb0
[  231.334156]  ? rcu_read_lock_sched_held+0x14f/0x180
[  231.339175]  __do_softirq+0x308/0xb7e
[  231.342983]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  231.347477]  ? lock_downgrade+0x900/0x900
[  231.351635]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  231.356747]  ? pvclock_read_flags+0x160/0x160
[  231.361245]  ? lapic_next_event+0x5a/0x90
[  231.365405]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.370953]  ? kvm_clock_read+0x18/0x30
[  231.374931]  ? kvm_sched_clock_read+0x9/0x20
[  231.379340]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  231.384886]  ? check_preemption_disabled+0x48/0x280
[  231.389921]  irq_exit+0x17f/0x1c0
[  231.393385]  smp_apic_timer_interrupt+0x1cb/0x760
[  231.398232]  ? smp_call_function_single_interrupt+0x159/0x650
[  231.404131]  ? smp_call_function_single_interrupt+0x650/0x650
[  231.410015]  ? interrupt_entry+0xb5/0xc0
[  231.414079]  ? trace_hardirqs_off_caller+0xbb/0x310
[  231.419092]  ? trace_hardirqs_off_caller+0xbb/0x310
[  231.424107]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  231.428960]  ? trace_hardirqs_on_caller+0x310/0x310
[  231.433980]  ? trace_hardirqs_on_caller+0x310/0x310
[  231.439000]  ? task_prio+0x50/0x50
[  231.442541]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.448083]  ? check_preemption_disabled+0x48/0x280
[  231.453113]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  231.457965]  apic_timer_interrupt+0xf/0x20
[  231.462192]  </IRQ>
[  231.464432] RIP: 0010:dump_stack+0x358/0x39d
[  231.468845] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  231.487760] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  231.495470] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  231.502735] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  231.510000] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  231.517266] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  231.524533] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  231.531827]  ? dump_stack+0x34f/0x39d
[  231.535644]  ? dump_stack_print_info.cold.1+0x20/0x20
[  231.540840]  ? mark_held_locks+0x130/0x130
[  231.545079]  ? mark_held_locks+0x130/0x130
[  231.549317]  dump_header+0x27b/0xf72
[  231.553045]  ? pagefault_out_of_memory+0x197/0x197
[  231.557983]  ? __lock_acquire+0x62f/0x4c20
[  231.562223]  ? percpu_ref_get_many+0x240/0x240
[  231.566810]  ? print_usage_bug+0xc0/0xc0
[  231.570884]  ? zap_class+0x640/0x640
[  231.574600]  ? print_usage_bug+0xc0/0xc0
[  231.578662]  ? print_usage_bug+0xc0/0xc0
[  231.582724]  ? zap_class+0x640/0x640
[  231.586446]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.591990]  ? find_held_lock+0x36/0x1c0
[  231.596061]  ? mark_held_locks+0xc7/0x130
[  231.600211]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  231.605318]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  231.610422]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  231.615010]  ? trace_hardirqs_on+0xbd/0x310
[  231.619334]  ? kasan_check_read+0x11/0x20
[  231.623485]  ? ___ratelimit+0x3b4/0x672
[  231.627464]  ? trace_hardirqs_off_caller+0x310/0x310
[  231.632567]  ? trace_hardirqs_on+0x310/0x310
[  231.636975]  ? lock_downgrade+0x900/0x900
[  231.641128]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  231.646232]  ? ___ratelimit+0x3b9/0x672
[  231.650215]  ? idr_get_free+0xf70/0xf70
[  231.654190]  ? find_held_lock+0x36/0x1c0
[  231.658259]  oom_kill_process.cold.27+0x10/0x903
[  231.663016]  ? zap_class+0x640/0x640
[  231.666732]  ? check_preemption_disabled+0x48/0x280
[  231.671757]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  231.676689]  ? kasan_check_read+0x11/0x20
[  231.680843]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  231.686130]  ? oom_evaluate_task+0x540/0x540
[  231.690544]  ? find_held_lock+0x36/0x1c0
[  231.694616]  ? out_of_memory+0x974/0x1430
[  231.698771]  ? lock_downgrade+0x900/0x900
[  231.702919]  ? check_preemption_disabled+0x48/0x280
[  231.707941]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  231.712877]  ? kasan_check_read+0x11/0x20
[  231.717033]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  231.722311]  ? rcu_softirq_qs+0x20/0x20
[  231.726293]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  231.731832]  ? oom_evaluate_task+0x302/0x540
[  231.736248]  out_of_memory+0xa84/0x1430
[  231.740233]  ? oom_killer_disable+0x3a0/0x3a0
[  231.744733]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  231.749674]  ? __ww_mutex_check_waiters+0x160/0x160
[  231.754702]  __alloc_pages_slowpath+0x232c/0x2de0
[  231.759576]  ? warn_alloc+0x120/0x120
[  231.763376]  ? mark_held_locks+0x130/0x130
[  231.767625]  ? find_get_entry+0xaae/0x1120
[  231.771878]  ? filemap_map_pages+0x1a20/0x1a20
[  231.776470]  ? zap_class+0x640/0x640
[  231.780193]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.785734]  ? check_preemption_disabled+0x48/0x280
[  231.790758]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  231.796296]  ? should_fail+0x22d/0xd01
[  231.800189]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  231.805296]  ? zap_class+0x640/0x640
[  231.809035]  ? __lock_is_held+0xb5/0x140
[  231.813106]  ? mark_held_locks+0x130/0x130
[  231.817343]  ? lock_release+0xa00/0xa00
[  231.821321]  ? perf_trace_sched_process_exec+0x860/0x860
[  231.826772]  ? xa_load+0x2ba/0x460
[  231.830319]  ? lock_downgrade+0x900/0x900
[  231.834471]  ? __might_sleep+0x95/0x190
[  231.838452]  __alloc_pages_nodemask+0xad8/0xea0
[  231.843180]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  231.848200]  ? __page_cache_alloc+0x191/0x5c0
[  231.852695]  ? xa_load+0x2e1/0x460
[  231.856269]  ? xa_clear_mark+0x40/0x40
[  231.860161]  ? zap_class+0x640/0x640
[  231.863890]  ? zap_class+0x640/0x640
[  231.867604]  ? zap_class+0x640/0x640
[  231.871318]  ? __do_page_cache_readahead+0x663/0x810
[  231.876430]  ? find_held_lock+0x36/0x1c0
[  231.880499]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  231.886046]  alloc_pages_current+0x173/0x350
[  231.890462]  __page_cache_alloc+0x38c/0x5c0
[  231.894787]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  231.899716]  ? kasan_check_read+0x11/0x20
[  231.903861]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  231.909148]  ? generic_perform_write+0x6a0/0x6a0
[  231.913919]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  231.919462]  ? check_preemption_disabled+0x48/0x280
[  231.924490]  filemap_fault+0x1595/0x25f0
[  231.928567]  ? __lock_page_or_retry+0xa00/0xa00
[  231.933242]  ? mark_held_locks+0x130/0x130
[  231.937486]  ? filemap_map_pages+0xd6b/0x1a20
[  231.941985]  ? lock_downgrade+0x900/0x900
[  231.946137]  ? check_preemption_disabled+0x48/0x280
[  231.951158]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  231.956087]  ? kasan_check_read+0x11/0x20
[  231.960236]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  231.965513]  ? rcu_softirq_qs+0x20/0x20
[  231.969499]  ? filemap_map_pages+0xd92/0x1a20
[  231.974013]  ? find_get_entries_tag+0x1400/0x1400
[  231.978860]  ? debug_object_destroy+0x2b0/0x2b0
[  231.983544]  ? lock_pi_update_atomic+0x150/0x150
[  231.988301]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.993857]  ? lock_acquire+0x1ed/0x520
[  231.997838]  ? ext4_filemap_fault+0x7a/0xad
[  232.002172]  ? lock_release+0xa00/0xa00
[  232.006145]  ? perf_trace_sched_process_exec+0x860/0x860
[  232.011598]  ? print_usage_bug+0xc0/0xc0
[  232.015658]  ? print_usage_bug+0xc0/0xc0
[  232.019736]  ? down_read+0x8d/0x120
[  232.023360]  ? ext4_filemap_fault+0x7a/0xad
[  232.027687]  ? __down_interruptible+0x700/0x700
[  232.032369]  ext4_filemap_fault+0x82/0xad
[  232.036526]  __do_fault+0x100/0x6b0
[  232.040156]  ? find_held_lock+0x36/0x1c0
[  232.044220]  ? pmd_devmap_trans_unstable+0x220/0x220
[  232.049327]  ? mark_held_locks+0x130/0x130
[  232.053571]  ? mark_held_locks+0x130/0x130
[  232.057805]  ? _raw_spin_unlock_irq+0x27/0x80
[  232.062301]  ? _raw_spin_unlock_irq+0x27/0x80
[  232.066803]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  232.071394]  ? kasan_check_read+0x11/0x20
[  232.075546]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  232.081088]  __handle_mm_fault+0x3ea0/0x5be0
[  232.085507]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  232.090349]  ? finish_task_switch+0x1f4/0x910
[  232.094846]  ? finish_task_switch+0x1b4/0x910
[  232.099348]  ? __switch_to_asm+0x34/0x70
[  232.103422]  ? preempt_notifier_register+0x200/0x200
[  232.108521]  ? __switch_to_asm+0x34/0x70
[  232.112582]  ? __switch_to_asm+0x34/0x70
[  232.116658]  ? zap_class+0x640/0x640
[  232.120374]  ? zap_class+0x640/0x640
[  232.124096]  ? __x64_sys_futex+0x53e/0x6a0
[  232.128422]  ? find_held_lock+0x36/0x1c0
[  232.132534]  ? handle_mm_fault+0x42a/0xc70
[  232.136770]  ? lock_downgrade+0x900/0x900
[  232.140925]  ? check_preemption_disabled+0x48/0x280
[  232.145944]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  232.150879]  ? kasan_check_read+0x11/0x20
[  232.155027]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  232.160303]  ? rcu_softirq_qs+0x20/0x20
[  232.164277]  ? trace_hardirqs_off_caller+0x310/0x310
[  232.169386]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  232.174925]  ? check_preemption_disabled+0x48/0x280
[  232.179951]  handle_mm_fault+0x54f/0xc70
[  232.184016]  ? __handle_mm_fault+0x5be0/0x5be0
[  232.188602]  ? find_vma+0x34/0x190
[  232.192151]  __do_page_fault+0x5e8/0xe60
[  232.196212]  ? trace_hardirqs_off+0xb8/0x310
[  232.200635]  do_page_fault+0xf2/0x7e0
[  232.204448]  ? vmalloc_sync_all+0x30/0x30
[  232.208598]  ? error_entry+0x70/0xd0
[  232.212316]  ? trace_hardirqs_off_caller+0xbb/0x310
[  232.217328]  ? trace_hardirqs_on_caller+0xc0/0x310
[  232.222273]  ? syscall_return_slowpath+0x5e0/0x5e0
[  232.227203]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  232.232045]  ? trace_hardirqs_on_caller+0x310/0x310
[  232.237059]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  232.242517]  ? prepare_exit_to_usermode+0x291/0x3b0
[  232.247532]  ? page_fault+0x8/0x30
[  232.251078]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  232.255927]  ? page_fault+0x8/0x30
[  232.259470]  page_fault+0x1e/0x30
[  232.262920] RIP: 0033:0x40f9c0
[  232.266124] Code: Bad RIP value.
[  232.269483] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  232.274843] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  232.282115] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  232.289406] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  232.296676] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  232.303951] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  232.311245] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  232.311311] aoe: skb alloc failure
[  232.317999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  232.318005] Call Trace:
[  232.318027]  dump_stack+0x244/0x39d
[  232.318046]  ? dump_stack_print_info.cold.1+0x20/0x20
[  232.321591] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  232.330924]  warn_alloc.cold.116+0xb7/0x1bd
[  232.333477] syz-fuzzer cpuset=/ mems_allowed=0
[  232.337098]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  232.366176]  ? lock_downgrade+0x900/0x900
[  232.370332]  ? trace_hardirqs_off+0xb8/0x310
[  232.374749]  ? trace_hardirqs_off+0xb8/0x310
[  232.379164]  __alloc_pages_slowpath+0x2651/0x2de0
[  232.384037]  ? warn_alloc+0x120/0x120
[  232.387843]  ? print_usage_bug+0xc0/0xc0
[  232.391918]  ? warn_alloc+0x120/0x120
[  232.395722]  ? warn_alloc+0x120/0x120
[  232.399522]  ? print_usage_bug+0xc0/0xc0
[  232.403591]  ? print_usage_bug+0xc0/0xc0
[  232.407655]  ? __lock_acquire+0x62f/0x4c20
[  232.411917]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  232.417459]  ? should_fail+0x22d/0xd01
[  232.421350]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  232.426452]  ? __lock_acquire+0x62f/0x4c20
[  232.431206]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  232.436313]  ? __lock_acquire+0x62f/0x4c20
[  232.440544]  ? should_fail+0x22d/0xd01
[  232.444434]  ? find_held_lock+0x36/0x1c0
[  232.448502]  ? mark_held_locks+0x130/0x130
[  232.452741]  ? mark_held_locks+0x130/0x130
[  232.456976]  ? zap_class+0x640/0x640
[  232.460694]  ? mark_held_locks+0xc7/0x130
[  232.464838]  ? do_raw_spin_unlock+0xa7/0x330
[  232.469251]  ? zap_class+0x640/0x640
[  232.472971]  ? print_usage_bug+0xc0/0xc0
[  232.477059]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.482601]  ? check_preemption_disabled+0x48/0x280
[  232.487624]  ? __lock_is_held+0xb5/0x140
[  232.491689]  __alloc_pages_nodemask+0xad8/0xea0
[  232.496355]  ? zap_class+0x640/0x640
[  232.500085]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  232.505126]  ? find_held_lock+0x36/0x1c0
[  232.509197]  ? ____cache_alloc_node+0x1c7/0x1e0
[  232.513877]  ? lock_downgrade+0x900/0x900
[  232.518040]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.523584]  cache_grow_begin+0xa5/0x8c0
[  232.527649]  ? do_raw_spin_unlock+0xa7/0x330
[  232.532066]  fallback_alloc+0x204/0x2e0
[  232.536045]  ____cache_alloc_node+0x1c7/0x1e0
[  232.540551]  kmem_cache_alloc_node+0xe3/0x730
[  232.545046]  ? ipv6_get_ifaddr+0x42e/0x620
[  232.549293]  __alloc_skb+0x119/0x770
[  232.553006]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  232.558290]  ? netdev_alloc_frag+0x1f0/0x1f0
[  232.562920]  ? lock_downgrade+0x900/0x900
[  232.567085]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.572624]  ? refcount_sub_and_test_checked+0x203/0x310
[  232.578077]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  232.583529]  ? addrconf_rs_timer+0x690/0x690
[  232.587963]  ndisc_alloc_skb+0x144/0x340
[  232.592029]  ndisc_send_rs+0x331/0x6e0
[  232.595921]  addrconf_rs_timer+0x314/0x690
[  232.600168]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.604414]  call_timer_fn+0x272/0x920
[  232.608300]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.612532]  ? process_timeout+0x40/0x40
[  232.616600]  ? __run_timers+0x7da/0xc70
[  232.620575]  ? _raw_spin_unlock_irq+0x27/0x80
[  232.625073]  ? _raw_spin_unlock_irq+0x27/0x80
[  232.629565]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.633799]  ? lockdep_hardirqs_on+0x296/0x5b0
[  232.638383]  ? trace_hardirqs_on+0xbd/0x310
[  232.642709]  ? kasan_check_read+0x11/0x20
[  232.646853]  ? __run_timers+0x7da/0xc70
[  232.650840]  ? trace_hardirqs_off_caller+0x310/0x310
[  232.655958]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.660200]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.664433]  __run_timers+0x7e5/0xc70
[  232.668246]  ? timer_fixup_init+0x70/0x70
[  232.672392]  ? _raw_spin_unlock_irq+0x27/0x80
[  232.676905]  ? _raw_spin_unlock_irq+0x27/0x80
[  232.681403]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  232.685994]  ? trace_hardirqs_on+0xbd/0x310
[  232.690319]  ? kasan_check_read+0x11/0x20
[  232.694467]  ? finish_task_switch+0x1f4/0x910
[  232.698964]  ? trace_hardirqs_off_caller+0x310/0x310
[  232.704067]  ? compat_start_thread+0x80/0x80
[  232.708497]  ? pvclock_read_flags+0x160/0x160
[  232.712990]  ? __switch_to_asm+0x34/0x70
[  232.717055]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.722599]  ? check_preemption_disabled+0x48/0x280
[  232.727631]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  232.733174]  ? rcu_pm_notify+0xc0/0xc0
[  232.737067]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.742610]  ? check_preemption_disabled+0x48/0x280
[  232.747635]  run_timer_softirq+0x52/0xb0
[  232.751701]  ? rcu_read_lock_sched_held+0x14f/0x180
[  232.756725]  __do_softirq+0x308/0xb7e
[  232.760533]  ? trace_hardirqs_on_caller+0xc0/0x310
[  232.765472]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  232.770576]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  232.776032]  ? trace_hardirqs_on+0x310/0x310
[  232.780449]  ? schedule+0x108/0x460
[  232.784088]  ? trace_hardirqs_off+0xb8/0x310
[  232.788503]  ? smpboot_thread_fn+0x68b/0xa00
[  232.792922]  ? trace_hardirqs_on+0x310/0x310
[  232.797342]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  232.802897]  ? check_preemption_disabled+0x48/0x280
[  232.807924]  ? takeover_tasklets+0xa90/0xa90
[  232.812336]  run_ksoftirqd+0x5e/0x100
[  232.816139]  smpboot_thread_fn+0x68b/0xa00
[  232.820378]  ? sort_range+0x30/0x30
[  232.824007]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  232.829116]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  232.834663]  ? __kthread_parkme+0xfb/0x1a0
[  232.838918]  ? sort_range+0x30/0x30
[  232.842547]  kthread+0x35a/0x440
[  232.845922]  ? kthread_stop+0x900/0x900
[  232.849910]  ret_from_fork+0x3a/0x50
[  232.853638] warn_alloc_show_mem: 1 callbacks suppressed
[  232.853651] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  232.853652] Mem-Info:
[  232.853683] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  232.853683]  active_file:12 inactive_file:14 isolated_file:0
[  232.853683]  unevictable:0 dirty:0 writeback:0 unstable:0
[  232.853683]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  232.853683]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  232.853683]  free:13757 free_pcp:113 free_cma:0
[  232.859027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  232.865961] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  232.868366] Call Trace:
[  232.901410] 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
[  232.910756]  <IRQ>
[  232.938584] lowmem_reserve[]: 0 2818 6321 6321
[  232.941201]  dump_stack+0x244/0x39d
[  232.967289] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  232.969446]  ? dump_stack_print_info.cold.1+0x20/0x20
[  232.973993] lowmem_reserve[]: 0 0 3503 3503
[  232.977624]  warn_alloc.cold.116+0xb7/0x1bd
[  233.005107] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  233.010303]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  233.014593] lowmem_reserve[]: 0 0 0 0
[  233.018914]  ? lock_downgrade+0x900/0x900
[  233.047958] 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
[  233.052806]  ? trace_hardirqs_off+0xb8/0x310
[  233.056575] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  233.060717]  ? trace_hardirqs_off+0xb8/0x310
[  233.074207] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  233.078624]  __alloc_pages_slowpath+0x2651/0x2de0
[  233.094123] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  233.098543]  ? warn_alloc+0x120/0x120
[  233.113062] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  233.113071] 4236 total pagecache pages
[  233.117913]  ? warn_alloc+0x120/0x120
[  233.126730] 0 pages in swap cache
[  233.130522]  ? __lock_acquire+0x62f/0x4c20
[  233.139071] Swap cache stats: add 0, delete 0, find 0/0
[  233.142955]  ? warn_alloc+0x120/0x120
[  233.146725] Free swap  = 0kB
[  233.146733] Total swap = 0kB
[  233.150187]  ? print_usage_bug+0xc0/0xc0
[  233.154400] 1965979 pages RAM
[  233.159770]  ? print_usage_bug+0xc0/0xc0
[  233.163548] 0 pages HighMem/MovableOnly
[  233.166560]  ? mark_held_locks+0x130/0x130
[  233.169555] 342854 pages reserved
[  233.173608]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  233.176686] 0 pages cma reserved
[  233.180740]  ? should_fail+0x22d/0xd01
[  233.184758] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  233.188913]  ? zap_class+0x640/0x640
[  233.188932]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  233.192421] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  233.197907]  ? __lock_acquire+0x62f/0x4c20
[  233.201249] ksoftirqd/0 cpuset=/ mems_allowed=0
[  233.205132]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  233.244658]  ? should_fail+0x22d/0xd01
[  233.248562]  ? mark_held_locks+0x130/0x130
[  233.252798]  ? mark_held_locks+0x130/0x130
[  233.257033]  ? lock_downgrade+0x900/0x900
[  233.261182]  ? zap_class+0x640/0x640
[  233.264901]  ? zap_class+0x640/0x640
[  233.268617]  ? zap_class+0x640/0x640
[  233.272331]  ? do_raw_spin_unlock+0xa7/0x330
[  233.276742]  ? trace_hardirqs_on+0x310/0x310
[  233.281155]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.286697]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.292239]  ? check_preemption_disabled+0x48/0x280
[  233.297270]  ? __lock_is_held+0xb5/0x140
[  233.301340]  __alloc_pages_nodemask+0xad8/0xea0
[  233.306009]  ? zap_class+0x640/0x640
[  233.309727]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  233.314756]  ? find_held_lock+0x36/0x1c0
[  233.318832]  ? ____cache_alloc_node+0x1c7/0x1e0
[  233.323507]  ? lock_downgrade+0x900/0x900
[  233.327662]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.333202]  cache_grow_begin+0xa5/0x8c0
[  233.337261]  ? do_raw_spin_unlock+0xa7/0x330
[  233.341675]  fallback_alloc+0x204/0x2e0
[  233.345658]  ____cache_alloc_node+0x1c7/0x1e0
[  233.350164]  kmem_cache_alloc_node+0xe3/0x730
[  233.354664]  ? lockdep_hardirqs_on+0x296/0x5b0
[  233.359430]  __alloc_skb+0x119/0x770
[  233.363145]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  233.368516]  ? netdev_alloc_frag+0x1f0/0x1f0
[  233.372932]  ? vprintk_default+0x28/0x30
[  233.377001]  ? vprintk_func+0x85/0x181
[  233.380898]  ? printk+0xa7/0xcf
[  233.384179]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  233.388949]  new_skb+0x26/0x1c0
[  233.392228]  aoecmd_cfg+0x279/0x7f0
[  233.395857]  ? find_held_lock+0x36/0x1c0
[  233.399929]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  233.404261]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.409807]  ? __lock_is_held+0xb5/0x140
[  233.413887]  discover_timer+0x50/0x60
[  233.417697]  call_timer_fn+0x272/0x920
[  233.421589]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  233.426436]  ? process_timeout+0x40/0x40
[  233.430514]  ? mark_held_locks+0xc7/0x130
[  233.434663]  ? _raw_spin_unlock_irq+0x27/0x80
[  233.439162]  ? _raw_spin_unlock_irq+0x27/0x80
[  233.443660]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  233.448510]  ? lockdep_hardirqs_on+0x296/0x5b0
[  233.453094]  ? trace_hardirqs_on+0xbd/0x310
[  233.457425]  ? kasan_check_read+0x11/0x20
[  233.461573]  ? __run_timers+0x7da/0xc70
[  233.465548]  ? trace_hardirqs_off_caller+0x310/0x310
[  233.470669]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  233.475509]  __run_timers+0x7e5/0xc70
[  233.479319]  ? timer_fixup_init+0x70/0x70
[  233.483472]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  233.488494]  ? zap_class+0x640/0x640
[  233.492213]  ? print_usage_bug+0xc0/0xc0
[  233.496276]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  233.501472]  ? find_held_lock+0x36/0x1c0
[  233.505539]  ? zap_class+0x640/0x640
[  233.509262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.514802]  ? check_preemption_disabled+0x48/0x280
[  233.519826]  ? __lock_is_held+0xb5/0x140
[  233.523899]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.529524]  ? check_preemption_disabled+0x48/0x280
[  233.534546]  run_timer_softirq+0x52/0xb0
[  233.538607]  ? rcu_read_lock_sched_held+0x14f/0x180
[  233.543627]  __do_softirq+0x308/0xb7e
[  233.547432]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  233.551929]  ? lock_downgrade+0x900/0x900
[  233.556081]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  233.561197]  ? pvclock_read_flags+0x160/0x160
[  233.565699]  ? lapic_next_event+0x5a/0x90
[  233.569864]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.575432]  ? kvm_clock_read+0x18/0x30
[  233.579410]  ? kvm_sched_clock_read+0x9/0x20
[  233.583822]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  233.589363]  ? check_preemption_disabled+0x48/0x280
[  233.594402]  irq_exit+0x17f/0x1c0
[  233.597858]  smp_apic_timer_interrupt+0x1cb/0x760
[  233.602707]  ? smp_call_function_single_interrupt+0x159/0x650
[  233.608597]  ? smp_call_function_single_interrupt+0x650/0x650
[  233.614480]  ? interrupt_entry+0xb5/0xc0
[  233.618543]  ? trace_hardirqs_off_caller+0xbb/0x310
[  233.623561]  ? trace_hardirqs_off_caller+0xbb/0x310
[  233.628578]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  233.633426]  ? trace_hardirqs_on_caller+0x310/0x310
[  233.638444]  ? trace_hardirqs_on_caller+0x310/0x310
[  233.643464]  ? task_prio+0x50/0x50
[  233.647010]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.652562]  ? check_preemption_disabled+0x48/0x280
[  233.657591]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  233.662446]  apic_timer_interrupt+0xf/0x20
[  233.666674]  </IRQ>
[  233.668915] RIP: 0010:dump_stack+0x358/0x39d
[  233.673326] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  233.692229] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  233.700108] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  233.707377] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  233.714648] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  233.721916] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  233.729184] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  233.736480]  ? dump_stack+0x34f/0x39d
[  233.740293]  ? dump_stack_print_info.cold.1+0x20/0x20
[  233.745487]  ? mark_held_locks+0x130/0x130
[  233.749723]  ? mark_held_locks+0x130/0x130
[  233.753966]  dump_header+0x27b/0xf72
[  233.757699]  ? pagefault_out_of_memory+0x197/0x197
[  233.762644]  ? __lock_acquire+0x62f/0x4c20
[  233.766893]  ? percpu_ref_get_many+0x240/0x240
[  233.771487]  ? print_usage_bug+0xc0/0xc0
[  233.775559]  ? zap_class+0x640/0x640
[  233.779276]  ? print_usage_bug+0xc0/0xc0
[  233.783344]  ? print_usage_bug+0xc0/0xc0
[  233.787418]  ? zap_class+0x640/0x640
[  233.791142]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.796698]  ? find_held_lock+0x36/0x1c0
[  233.800775]  ? mark_held_locks+0xc7/0x130
[  233.804926]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  233.810026]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  233.815137]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  233.819722]  ? trace_hardirqs_on+0xbd/0x310
[  233.824048]  ? kasan_check_read+0x11/0x20
[  233.828200]  ? ___ratelimit+0x3b4/0x672
[  233.832176]  ? trace_hardirqs_off_caller+0x310/0x310
[  233.837281]  ? trace_hardirqs_on+0x310/0x310
[  233.841698]  ? lock_downgrade+0x900/0x900
[  233.845855]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  233.850966]  ? ___ratelimit+0x3b9/0x672
[  233.854946]  ? idr_get_free+0xf70/0xf70
[  233.858927]  ? find_held_lock+0x36/0x1c0
[  233.863002]  oom_kill_process.cold.27+0x10/0x903
[  233.867764]  ? zap_class+0x640/0x640
[  233.871479]  ? check_preemption_disabled+0x48/0x280
[  233.876503]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  233.881431]  ? kasan_check_read+0x11/0x20
[  233.885582]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  233.890865]  ? oom_evaluate_task+0x540/0x540
[  233.895293]  ? find_held_lock+0x36/0x1c0
[  233.899362]  ? out_of_memory+0x974/0x1430
[  233.903519]  ? lock_downgrade+0x900/0x900
[  233.907670]  ? check_preemption_disabled+0x48/0x280
[  233.912690]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  233.917620]  ? kasan_check_read+0x11/0x20
[  233.921773]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  233.927053]  ? rcu_softirq_qs+0x20/0x20
[  233.931034]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  233.936569]  ? oom_evaluate_task+0x302/0x540
[  233.941158]  out_of_memory+0xa84/0x1430
[  233.945143]  ? oom_killer_disable+0x3a0/0x3a0
[  233.949647]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  233.954585]  ? __ww_mutex_check_waiters+0x160/0x160
[  233.959615]  __alloc_pages_slowpath+0x232c/0x2de0
[  233.964490]  ? warn_alloc+0x120/0x120
[  233.968293]  ? mark_held_locks+0x130/0x130
[  233.972534]  ? find_get_entry+0xaae/0x1120
[  233.976783]  ? filemap_map_pages+0x1a20/0x1a20
[  233.981372]  ? zap_class+0x640/0x640
[  233.985104]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.990646]  ? check_preemption_disabled+0x48/0x280
[  233.995665]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  234.001209]  ? should_fail+0x22d/0xd01
[  234.005104]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  234.010216]  ? zap_class+0x640/0x640
[  234.013960]  ? __lock_is_held+0xb5/0x140
[  234.018035]  ? mark_held_locks+0x130/0x130
[  234.022277]  ? lock_release+0xa00/0xa00
[  234.026257]  ? perf_trace_sched_process_exec+0x860/0x860
[  234.031709]  ? xa_load+0x2ba/0x460
[  234.035255]  ? lock_downgrade+0x900/0x900
[  234.039444]  ? __might_sleep+0x95/0x190
[  234.043428]  __alloc_pages_nodemask+0xad8/0xea0
[  234.048106]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  234.053124]  ? __page_cache_alloc+0x191/0x5c0
[  234.057621]  ? xa_load+0x2e1/0x460
[  234.061167]  ? xa_clear_mark+0x40/0x40
[  234.065062]  ? zap_class+0x640/0x640
[  234.068787]  ? zap_class+0x640/0x640
[  234.072498]  ? zap_class+0x640/0x640
[  234.076253]  ? __do_page_cache_readahead+0x663/0x810
[  234.081369]  ? find_held_lock+0x36/0x1c0
[  234.085442]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  234.090986]  alloc_pages_current+0x173/0x350
[  234.095409]  __page_cache_alloc+0x38c/0x5c0
[  234.099729]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  234.104663]  ? kasan_check_read+0x11/0x20
[  234.108814]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  234.114094]  ? generic_perform_write+0x6a0/0x6a0
[  234.118852]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  234.124406]  ? check_preemption_disabled+0x48/0x280
[  234.129436]  filemap_fault+0x1595/0x25f0
[  234.133512]  ? __lock_page_or_retry+0xa00/0xa00
[  234.138189]  ? mark_held_locks+0x130/0x130
[  234.142434]  ? filemap_map_pages+0xd6b/0x1a20
[  234.146932]  ? lock_downgrade+0x900/0x900
[  234.151083]  ? check_preemption_disabled+0x48/0x280
[  234.156101]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  234.161033]  ? kasan_check_read+0x11/0x20
[  234.165182]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  234.170462]  ? rcu_softirq_qs+0x20/0x20
[  234.174453]  ? filemap_map_pages+0xd92/0x1a20
[  234.178964]  ? find_get_entries_tag+0x1400/0x1400
[  234.183816]  ? debug_object_destroy+0x2b0/0x2b0
[  234.188500]  ? lock_pi_update_atomic+0x150/0x150
[  234.193259]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.198814]  ? lock_acquire+0x1ed/0x520
[  234.202796]  ? ext4_filemap_fault+0x7a/0xad
[  234.207128]  ? lock_release+0xa00/0xa00
[  234.211102]  ? perf_trace_sched_process_exec+0x860/0x860
[  234.216560]  ? print_usage_bug+0xc0/0xc0
[  234.220628]  ? print_usage_bug+0xc0/0xc0
[  234.224701]  ? down_read+0x8d/0x120
[  234.228330]  ? ext4_filemap_fault+0x7a/0xad
[  234.232658]  ? __down_interruptible+0x700/0x700
[  234.237340]  ext4_filemap_fault+0x82/0xad
[  234.241498]  __do_fault+0x100/0x6b0
[  234.245124]  ? find_held_lock+0x36/0x1c0
[  234.249198]  ? pmd_devmap_trans_unstable+0x220/0x220
[  234.254309]  ? mark_held_locks+0x130/0x130
[  234.258545]  ? mark_held_locks+0x130/0x130
[  234.262781]  ? _raw_spin_unlock_irq+0x27/0x80
[  234.267279]  ? _raw_spin_unlock_irq+0x27/0x80
[  234.271778]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  234.276367]  ? kasan_check_read+0x11/0x20
[  234.280630]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  234.286180]  __handle_mm_fault+0x3ea0/0x5be0
[  234.290605]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  234.295459]  ? finish_task_switch+0x1f4/0x910
[  234.299954]  ? finish_task_switch+0x1b4/0x910
[  234.304455]  ? __switch_to_asm+0x34/0x70
[  234.308527]  ? preempt_notifier_register+0x200/0x200
[  234.313635]  ? __switch_to_asm+0x34/0x70
[  234.317698]  ? __switch_to_asm+0x34/0x70
[  234.321772]  ? zap_class+0x640/0x640
[  234.325489]  ? zap_class+0x640/0x640
[  234.329205]  ? __x64_sys_futex+0x53e/0x6a0
[  234.333448]  ? find_held_lock+0x36/0x1c0
[  234.337521]  ? handle_mm_fault+0x42a/0xc70
[  234.341760]  ? lock_downgrade+0x900/0x900
[  234.345912]  ? check_preemption_disabled+0x48/0x280
[  234.350932]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  234.355865]  ? kasan_check_read+0x11/0x20
[  234.360026]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  234.365302]  ? rcu_softirq_qs+0x20/0x20
[  234.369282]  ? trace_hardirqs_off_caller+0x310/0x310
[  234.374395]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  234.379938]  ? check_preemption_disabled+0x48/0x280
[  234.384971]  handle_mm_fault+0x54f/0xc70
[  234.389042]  ? __handle_mm_fault+0x5be0/0x5be0
[  234.393627]  ? find_vma+0x34/0x190
[  234.397175]  __do_page_fault+0x5e8/0xe60
[  234.401240]  ? trace_hardirqs_off+0xb8/0x310
[  234.405657]  do_page_fault+0xf2/0x7e0
[  234.409464]  ? vmalloc_sync_all+0x30/0x30
[  234.413611]  ? error_entry+0x70/0xd0
[  234.417327]  ? trace_hardirqs_off_caller+0xbb/0x310
[  234.422346]  ? trace_hardirqs_on_caller+0xc0/0x310
[  234.427279]  ? syscall_return_slowpath+0x5e0/0x5e0
[  234.432378]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  234.437229]  ? trace_hardirqs_on_caller+0x310/0x310
[  234.442247]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  234.447701]  ? prepare_exit_to_usermode+0x291/0x3b0
[  234.452721]  ? page_fault+0x8/0x30
[  234.456266]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  234.461137]  ? page_fault+0x8/0x30
[  234.464678]  page_fault+0x1e/0x30
[  234.468129] RIP: 0033:0x40f9c0
[  234.471332] Code: Bad RIP value.
[  234.474703] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  234.480068] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  234.487337] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  234.494601] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  234.501878] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  234.509151] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  234.516450] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  234.516514] aoe: skb alloc failure
[  234.523205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  234.523213] Call Trace:
[  234.526805] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  234.536098]  dump_stack+0x244/0x39d
[  234.538662] syz-fuzzer cpuset=/ mems_allowed=0
[  234.548913]  ? dump_stack_print_info.cold.1+0x20/0x20
[  234.562308]  warn_alloc.cold.116+0xb7/0x1bd
[  234.566927]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  234.571780]  ? lock_downgrade+0x900/0x900
[  234.575937]  ? trace_hardirqs_off+0xb8/0x310
[  234.580354]  ? trace_hardirqs_off+0xb8/0x310
[  234.584774]  __alloc_pages_slowpath+0x2651/0x2de0
[  234.589650]  ? warn_alloc+0x120/0x120
[  234.593469]  ? print_usage_bug+0xc0/0xc0
[  234.597532]  ? warn_alloc+0x120/0x120
[  234.601342]  ? warn_alloc+0x120/0x120
[  234.605148]  ? print_usage_bug+0xc0/0xc0
[  234.609213]  ? print_usage_bug+0xc0/0xc0
[  234.613275]  ? __lock_acquire+0x62f/0x4c20
[  234.617519]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  234.623058]  ? should_fail+0x22d/0xd01
[  234.626953]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  234.632064]  ? __lock_acquire+0x62f/0x4c20
[  234.636307]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  234.641409]  ? __lock_acquire+0x62f/0x4c20
[  234.645642]  ? should_fail+0x22d/0xd01
[  234.649529]  ? find_held_lock+0x36/0x1c0
[  234.653604]  ? mark_held_locks+0x130/0x130
[  234.657845]  ? mark_held_locks+0x130/0x130
[  234.662092]  ? zap_class+0x640/0x640
[  234.665810]  ? zap_class+0x640/0x640
[  234.669532]  ? print_usage_bug+0xc0/0xc0
[  234.673595]  ? do_raw_spin_unlock+0xa7/0x330
[  234.678006]  ? zap_class+0x640/0x640
[  234.681720]  ? print_usage_bug+0xc0/0xc0
[  234.685782]  ? wq_watchdog_touch+0x9c/0xfe
[  234.690021]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.695562]  ? check_preemption_disabled+0x48/0x280
[  234.700590]  ? __lock_is_held+0xb5/0x140
[  234.704664]  __alloc_pages_nodemask+0xad8/0xea0
[  234.709343]  ? zap_class+0x640/0x640
[  234.713063]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  234.718094]  ? find_held_lock+0x36/0x1c0
[  234.722165]  ? ____cache_alloc_node+0x1c7/0x1e0
[  234.726838]  ? lock_downgrade+0x900/0x900
[  234.731017]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.736560]  cache_grow_begin+0xa5/0x8c0
[  234.740624]  ? do_raw_spin_unlock+0xa7/0x330
[  234.745041]  fallback_alloc+0x204/0x2e0
[  234.749022]  ____cache_alloc_node+0x1c7/0x1e0
[  234.753528]  kmem_cache_alloc_node+0xe3/0x730
[  234.758030]  ? ipv6_get_ifaddr+0x42e/0x620
[  234.762276]  __alloc_skb+0x119/0x770
[  234.765994]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  234.771278]  ? netdev_alloc_frag+0x1f0/0x1f0
[  234.775688]  ? lock_downgrade+0x900/0x900
[  234.779845]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.785401]  ? refcount_sub_and_test_checked+0x203/0x310
[  234.790857]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  234.796321]  ? addrconf_rs_timer+0x690/0x690
[  234.800743]  ndisc_alloc_skb+0x144/0x340
[  234.804810]  ndisc_send_rs+0x331/0x6e0
[  234.808725]  addrconf_rs_timer+0x314/0x690
[  234.812969]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  234.817214]  call_timer_fn+0x272/0x920
[  234.821106]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  234.825338]  ? process_timeout+0x40/0x40
[  234.829407]  ? __run_timers+0x7da/0xc70
[  234.833385]  ? _raw_spin_unlock_irq+0x27/0x80
[  234.837894]  ? _raw_spin_unlock_irq+0x27/0x80
[  234.842392]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  234.846635]  ? lockdep_hardirqs_on+0x296/0x5b0
[  234.851225]  ? trace_hardirqs_on+0xbd/0x310
[  234.855556]  ? kasan_check_read+0x11/0x20
[  234.859706]  ? __run_timers+0x7da/0xc70
[  234.863689]  ? trace_hardirqs_off_caller+0x310/0x310
[  234.868797]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  234.873035]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  234.877272]  __run_timers+0x7e5/0xc70
[  234.881084]  ? timer_fixup_init+0x70/0x70
[  234.885236]  ? _raw_spin_unlock_irq+0x27/0x80
[  234.889731]  ? _raw_spin_unlock_irq+0x27/0x80
[  234.894229]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  234.898812]  ? trace_hardirqs_on+0xbd/0x310
[  234.903134]  ? kasan_check_read+0x11/0x20
[  234.907284]  ? finish_task_switch+0x1f4/0x910
[  234.911784]  ? trace_hardirqs_off_caller+0x310/0x310
[  234.916901]  ? compat_start_thread+0x80/0x80
[  234.921335]  ? pvclock_read_flags+0x160/0x160
[  234.925828]  ? __switch_to_asm+0x34/0x70
[  234.929907]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.935453]  ? check_preemption_disabled+0x48/0x280
[  234.940485]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  234.946024]  ? rcu_pm_notify+0xc0/0xc0
[  234.949925]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.955468]  ? check_preemption_disabled+0x48/0x280
[  234.960493]  run_timer_softirq+0x52/0xb0
[  234.964560]  ? rcu_read_lock_sched_held+0x14f/0x180
[  234.969580]  __do_softirq+0x308/0xb7e
[  234.973392]  ? trace_hardirqs_on_caller+0xc0/0x310
[  234.978327]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  234.983433]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  234.988901]  ? trace_hardirqs_on+0x310/0x310
[  234.993318]  ? schedule+0x108/0x460
[  234.996958]  ? trace_hardirqs_off+0xb8/0x310
[  235.001368]  ? smpboot_thread_fn+0x68b/0xa00
[  235.005781]  ? trace_hardirqs_on+0x310/0x310
[  235.010191]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  235.015732]  ? check_preemption_disabled+0x48/0x280
[  235.020751]  ? takeover_tasklets+0xa90/0xa90
[  235.025160]  run_ksoftirqd+0x5e/0x100
[  235.028964]  smpboot_thread_fn+0x68b/0xa00
[  235.033204]  ? sort_range+0x30/0x30
[  235.036831]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  235.041939]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  235.047481]  ? __kthread_parkme+0xfb/0x1a0
[  235.051723]  ? sort_range+0x30/0x30
[  235.055350]  kthread+0x35a/0x440
[  235.058723]  ? kthread_stop+0x900/0x900
[  235.062704]  ret_from_fork+0x3a/0x50
[  235.066435] warn_alloc_show_mem: 1 callbacks suppressed
[  235.066447] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  235.066449] Mem-Info:
[  235.066479] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  235.066479]  active_file:12 inactive_file:14 isolated_file:0
[  235.066479]  unevictable:0 dirty:0 writeback:0 unstable:0
[  235.066479]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  235.066479]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  235.066479]  free:13757 free_pcp:113 free_cma:0
[  235.071827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  235.078756] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  235.081159] Call Trace:
[  235.114210] 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
[  235.123567]  <IRQ>
[  235.151411] lowmem_reserve[]: 0 2818 6321 6321
[  235.154005]  dump_stack+0x244/0x39d
[  235.180104] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  235.182266]  ? dump_stack_print_info.cold.1+0x20/0x20
[  235.186807] lowmem_reserve[]: 0 0 3503 3503
[  235.190453]  warn_alloc.cold.116+0xb7/0x1bd
[  235.217928] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  235.223129]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  235.227418] lowmem_reserve[]: 0 0 0 0
[  235.231747]  ? lock_downgrade+0x900/0x900
[  235.260788] 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
[  235.265645]  ? trace_hardirqs_off+0xb8/0x310
[  235.269407] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  235.273568]  ? trace_hardirqs_off+0xb8/0x310
[  235.287062] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  235.291493]  __alloc_pages_slowpath+0x2651/0x2de0
[  235.306995] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  235.311429]  ? warn_alloc+0x120/0x120
[  235.325955] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  235.330795]  ? warn_alloc+0x120/0x120
[  235.339605] 4236 total pagecache pages
[  235.343412]  ? warn_alloc+0x120/0x120
[  235.351965] 0 pages in swap cache
[  235.355767]  ? print_usage_bug+0xc0/0xc0
[  235.359625] Swap cache stats: add 0, delete 0, find 0/0
[  235.359634] Free swap  = 0kB
[  235.363436]  ? print_usage_bug+0xc0/0xc0
[  235.366859] Total swap = 0kB
[  235.366867] 1965979 pages RAM
[  235.370934]  ? ktime_get+0x2c1/0x400
[  235.376260] 0 pages HighMem/MovableOnly
[  235.376269] 342854 pages reserved
[  235.379293]  ? check_preemption_disabled+0x48/0x280
[  235.383325] 0 pages cma reserved
[  235.386346]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  235.389495] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  235.393139]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  235.397177] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  235.400538]  ? should_fail+0x22d/0xd01
[  235.405527] ksoftirqd/0 cpuset=/ mems_allowed=0
[  235.408904]  ? kasan_check_read+0x11/0x20
[  235.448380]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  235.453505]  ? __lock_acquire+0x62f/0x4c20
[  235.457756]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  235.462867]  ? should_fail+0x22d/0xd01
[  235.466774]  ? print_usage_bug+0xc0/0xc0
[  235.470852]  ? mark_held_locks+0x130/0x130
[  235.475109]  ? mark_held_locks+0x130/0x130
[  235.479361]  ? check_preemption_disabled+0x48/0x280
[  235.484404]  ? zap_class+0x640/0x640
[  235.488125]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  235.492895]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.498444]  ? check_preemption_disabled+0x48/0x280
[  235.503479]  ? __lock_is_held+0xb5/0x140
[  235.507555]  __alloc_pages_nodemask+0xad8/0xea0
[  235.512231]  ? zap_class+0x640/0x640
[  235.515952]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  235.520984]  ? find_held_lock+0x36/0x1c0
[  235.525062]  ? ____cache_alloc_node+0x1c7/0x1e0
[  235.529738]  ? lock_downgrade+0x900/0x900
[  235.533923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.539474]  cache_grow_begin+0xa5/0x8c0
[  235.543542]  ? do_raw_spin_unlock+0xa7/0x330
[  235.547965]  fallback_alloc+0x204/0x2e0
[  235.551954]  ____cache_alloc_node+0x1c7/0x1e0
[  235.556468]  kmem_cache_alloc_node+0xe3/0x730
[  235.560967]  ? lockdep_hardirqs_on+0x296/0x5b0
[  235.565561]  __alloc_skb+0x119/0x770
[  235.569280]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  235.574654]  ? netdev_alloc_frag+0x1f0/0x1f0
[  235.579079]  ? vprintk_default+0x28/0x30
[  235.583148]  ? vprintk_func+0x85/0x181
[  235.587043]  ? printk+0xa7/0xcf
[  235.590323]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  235.595097]  new_skb+0x26/0x1c0
[  235.598387]  aoecmd_cfg+0x279/0x7f0
[  235.602025]  ? find_held_lock+0x36/0x1c0
[  235.606105]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  235.610448]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.616018]  ? __lock_is_held+0xb5/0x140
[  235.620108]  discover_timer+0x50/0x60
[  235.623926]  call_timer_fn+0x272/0x920
[  235.627823]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  235.632670]  ? process_timeout+0x40/0x40
[  235.636745]  ? mark_held_locks+0xc7/0x130
[  235.640906]  ? _raw_spin_unlock_irq+0x27/0x80
[  235.645406]  ? _raw_spin_unlock_irq+0x27/0x80
[  235.649908]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  235.654756]  ? lockdep_hardirqs_on+0x296/0x5b0
[  235.659348]  ? trace_hardirqs_on+0xbd/0x310
[  235.663678]  ? kasan_check_read+0x11/0x20
[  235.667829]  ? __run_timers+0x7da/0xc70
[  235.671806]  ? trace_hardirqs_off_caller+0x310/0x310
[  235.676929]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  235.681773]  __run_timers+0x7e5/0xc70
[  235.685595]  ? timer_fixup_init+0x70/0x70
[  235.689753]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  235.694777]  ? zap_class+0x640/0x640
[  235.698498]  ? print_usage_bug+0xc0/0xc0
[  235.702567]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  235.707770]  ? find_held_lock+0x36/0x1c0
[  235.711839]  ? zap_class+0x640/0x640
[  235.715569]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.721111]  ? check_preemption_disabled+0x48/0x280
[  235.726140]  ? __lock_is_held+0xb5/0x140
[  235.730209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.735754]  ? check_preemption_disabled+0x48/0x280
[  235.740780]  run_timer_softirq+0x52/0xb0
[  235.744851]  ? rcu_read_lock_sched_held+0x14f/0x180
[  235.749891]  __do_softirq+0x308/0xb7e
[  235.753708]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  235.758219]  ? lock_downgrade+0x900/0x900
[  235.762378]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  235.767507]  ? pvclock_read_flags+0x160/0x160
[  235.772011]  ? lapic_next_event+0x5a/0x90
[  235.776190]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.781737]  ? kvm_clock_read+0x18/0x30
[  235.785719]  ? kvm_sched_clock_read+0x9/0x20
[  235.790135]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  235.795677]  ? check_preemption_disabled+0x48/0x280
[  235.800708]  irq_exit+0x17f/0x1c0
[  235.804169]  smp_apic_timer_interrupt+0x1cb/0x760
[  235.809015]  ? smp_call_function_single_interrupt+0x159/0x650
[  235.814913]  ? smp_call_function_single_interrupt+0x650/0x650
[  235.820798]  ? interrupt_entry+0xb5/0xc0
[  235.824860]  ? trace_hardirqs_off_caller+0xbb/0x310
[  235.829894]  ? trace_hardirqs_off_caller+0xbb/0x310
[  235.834920]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  235.839767]  ? trace_hardirqs_on_caller+0x310/0x310
[  235.844786]  ? trace_hardirqs_on_caller+0x310/0x310
[  235.849806]  ? task_prio+0x50/0x50
[  235.853351]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.858903]  ? check_preemption_disabled+0x48/0x280
[  235.863937]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  235.868790]  apic_timer_interrupt+0xf/0x20
[  235.873023]  </IRQ>
[  235.875264] RIP: 0010:dump_stack+0x358/0x39d
[  235.879678] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  235.898576] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  235.906283] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  235.913549] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  235.920820] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  235.928089] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  235.935356] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  235.942653]  ? dump_stack+0x34f/0x39d
[  235.946470]  ? dump_stack_print_info.cold.1+0x20/0x20
[  235.951665]  ? mark_held_locks+0x130/0x130
[  235.955913]  ? mark_held_locks+0x130/0x130
[  235.960157]  dump_header+0x27b/0xf72
[  235.963894]  ? pagefault_out_of_memory+0x197/0x197
[  235.968839]  ? __lock_acquire+0x62f/0x4c20
[  235.973094]  ? percpu_ref_get_many+0x240/0x240
[  235.977686]  ? print_usage_bug+0xc0/0xc0
[  235.981770]  ? zap_class+0x640/0x640
[  235.985498]  ? print_usage_bug+0xc0/0xc0
[  235.989563]  ? print_usage_bug+0xc0/0xc0
[  235.993631]  ? zap_class+0x640/0x640
[  235.997352]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.002905]  ? find_held_lock+0x36/0x1c0
[  236.006977]  ? mark_held_locks+0xc7/0x130
[  236.011131]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  236.016234]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  236.021343]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  236.025930]  ? trace_hardirqs_on+0xbd/0x310
[  236.030253]  ? kasan_check_read+0x11/0x20
[  236.034410]  ? ___ratelimit+0x3b4/0x672
[  236.038398]  ? trace_hardirqs_off_caller+0x310/0x310
[  236.043506]  ? trace_hardirqs_on+0x310/0x310
[  236.047924]  ? lock_downgrade+0x900/0x900
[  236.052088]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  236.057196]  ? ___ratelimit+0x3b9/0x672
[  236.061175]  ? idr_get_free+0xf70/0xf70
[  236.065152]  ? find_held_lock+0x36/0x1c0
[  236.069223]  oom_kill_process.cold.27+0x10/0x903
[  236.073982]  ? zap_class+0x640/0x640
[  236.077698]  ? check_preemption_disabled+0x48/0x280
[  236.082719]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  236.087647]  ? kasan_check_read+0x11/0x20
[  236.091797]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  236.097078]  ? oom_evaluate_task+0x540/0x540
[  236.101497]  ? find_held_lock+0x36/0x1c0
[  236.105568]  ? out_of_memory+0x974/0x1430
[  236.109717]  ? lock_downgrade+0x900/0x900
[  236.113900]  ? check_preemption_disabled+0x48/0x280
[  236.118923]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  236.123852]  ? kasan_check_read+0x11/0x20
[  236.128011]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  236.133287]  ? rcu_softirq_qs+0x20/0x20
[  236.137266]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  236.142804]  ? oom_evaluate_task+0x302/0x540
[  236.147218]  out_of_memory+0xa84/0x1430
[  236.151204]  ? oom_killer_disable+0x3a0/0x3a0
[  236.155708]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  236.160641]  ? __ww_mutex_check_waiters+0x160/0x160
[  236.165668]  __alloc_pages_slowpath+0x232c/0x2de0
[  236.170538]  ? warn_alloc+0x120/0x120
[  236.174343]  ? mark_held_locks+0x130/0x130
[  236.178583]  ? find_get_entry+0xaae/0x1120
[  236.182829]  ? filemap_map_pages+0x1a20/0x1a20
[  236.187426]  ? zap_class+0x640/0x640
[  236.191144]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.196683]  ? check_preemption_disabled+0x48/0x280
[  236.201704]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  236.207242]  ? should_fail+0x22d/0xd01
[  236.211134]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  236.216246]  ? zap_class+0x640/0x640
[  236.219985]  ? __lock_is_held+0xb5/0x140
[  236.224056]  ? mark_held_locks+0x130/0x130
[  236.228296]  ? lock_release+0xa00/0xa00
[  236.232274]  ? perf_trace_sched_process_exec+0x860/0x860
[  236.237724]  ? xa_load+0x2ba/0x460
[  236.241268]  ? lock_downgrade+0x900/0x900
[  236.245424]  ? __might_sleep+0x95/0x190
[  236.249413]  __alloc_pages_nodemask+0xad8/0xea0
[  236.254090]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  236.259109]  ? __page_cache_alloc+0x191/0x5c0
[  236.263608]  ? xa_load+0x2e1/0x460
[  236.267150]  ? xa_clear_mark+0x40/0x40
[  236.271042]  ? zap_class+0x640/0x640
[  236.274761]  ? zap_class+0x640/0x640
[  236.278477]  ? zap_class+0x640/0x640
[  236.282193]  ? __do_page_cache_readahead+0x663/0x810
[  236.287341]  ? find_held_lock+0x36/0x1c0
[  236.291409]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  236.296960]  alloc_pages_current+0x173/0x350
[  236.301375]  __page_cache_alloc+0x38c/0x5c0
[  236.305703]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  236.310632]  ? kasan_check_read+0x11/0x20
[  236.314779]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  236.320056]  ? generic_perform_write+0x6a0/0x6a0
[  236.324818]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  236.330360]  ? check_preemption_disabled+0x48/0x280
[  236.335415]  filemap_fault+0x1595/0x25f0
[  236.339503]  ? __lock_page_or_retry+0xa00/0xa00
[  236.344177]  ? mark_held_locks+0x130/0x130
[  236.348429]  ? filemap_map_pages+0xd6b/0x1a20
[  236.352925]  ? lock_downgrade+0x900/0x900
[  236.357075]  ? check_preemption_disabled+0x48/0x280
[  236.362102]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  236.367032]  ? kasan_check_read+0x11/0x20
[  236.371182]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  236.376464]  ? rcu_softirq_qs+0x20/0x20
[  236.380455]  ? filemap_map_pages+0xd92/0x1a20
[  236.384966]  ? find_get_entries_tag+0x1400/0x1400
[  236.389814]  ? debug_object_destroy+0x2b0/0x2b0
[  236.394489]  ? lock_pi_update_atomic+0x150/0x150
[  236.399250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.404800]  ? lock_acquire+0x1ed/0x520
[  236.408778]  ? ext4_filemap_fault+0x7a/0xad
[  236.413105]  ? lock_release+0xa00/0xa00
[  236.417076]  ? perf_trace_sched_process_exec+0x860/0x860
[  236.422532]  ? print_usage_bug+0xc0/0xc0
[  236.426603]  ? print_usage_bug+0xc0/0xc0
[  236.430903]  ? down_read+0x8d/0x120
[  236.434532]  ? ext4_filemap_fault+0x7a/0xad
[  236.438854]  ? __down_interruptible+0x700/0x700
[  236.443550]  ext4_filemap_fault+0x82/0xad
[  236.447707]  __do_fault+0x100/0x6b0
[  236.451336]  ? find_held_lock+0x36/0x1c0
[  236.455408]  ? pmd_devmap_trans_unstable+0x220/0x220
[  236.460515]  ? mark_held_locks+0x130/0x130
[  236.464751]  ? mark_held_locks+0x130/0x130
[  236.468986]  ? _raw_spin_unlock_irq+0x27/0x80
[  236.473482]  ? _raw_spin_unlock_irq+0x27/0x80
[  236.477986]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  236.482577]  ? kasan_check_read+0x11/0x20
[  236.486730]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  236.492277]  __handle_mm_fault+0x3ea0/0x5be0
[  236.496694]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  236.501541]  ? finish_task_switch+0x1f4/0x910
[  236.506035]  ? finish_task_switch+0x1b4/0x910
[  236.510530]  ? __switch_to_asm+0x34/0x70
[  236.514596]  ? preempt_notifier_register+0x200/0x200
[  236.519697]  ? __switch_to_asm+0x34/0x70
[  236.523758]  ? __switch_to_asm+0x34/0x70
[  236.527832]  ? zap_class+0x640/0x640
[  236.531545]  ? zap_class+0x640/0x640
[  236.535255]  ? __x64_sys_futex+0x53e/0x6a0
[  236.539495]  ? find_held_lock+0x36/0x1c0
[  236.543566]  ? handle_mm_fault+0x42a/0xc70
[  236.547806]  ? lock_downgrade+0x900/0x900
[  236.551955]  ? check_preemption_disabled+0x48/0x280
[  236.556976]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  236.562411]  ? kasan_check_read+0x11/0x20
[  236.566574]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  236.571852]  ? rcu_softirq_qs+0x20/0x20
[  236.575839]  ? trace_hardirqs_off_caller+0x310/0x310
[  236.580952]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  236.586492]  ? check_preemption_disabled+0x48/0x280
[  236.591516]  handle_mm_fault+0x54f/0xc70
[  236.595580]  ? __handle_mm_fault+0x5be0/0x5be0
[  236.600165]  ? find_vma+0x34/0x190
[  236.603710]  __do_page_fault+0x5e8/0xe60
[  236.607772]  ? trace_hardirqs_off+0xb8/0x310
[  236.612190]  do_page_fault+0xf2/0x7e0
[  236.615992]  ? vmalloc_sync_all+0x30/0x30
[  236.620142]  ? error_entry+0x70/0xd0
[  236.623866]  ? trace_hardirqs_off_caller+0xbb/0x310
[  236.628902]  ? trace_hardirqs_on_caller+0xc0/0x310
[  236.633831]  ? syscall_return_slowpath+0x5e0/0x5e0
[  236.638764]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  236.643608]  ? trace_hardirqs_on_caller+0x310/0x310
[  236.648623]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  236.654079]  ? prepare_exit_to_usermode+0x291/0x3b0
[  236.659095]  ? page_fault+0x8/0x30
[  236.662641]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  236.667489]  ? page_fault+0x8/0x30
[  236.671066]  page_fault+0x1e/0x30
[  236.674521] RIP: 0033:0x40f9c0
[  236.677726] Code: Bad RIP value.
[  236.681091] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  236.686454] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  236.693720] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  236.700988] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  236.708259] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  236.715527] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  236.722825] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  236.722929] aoe: skb alloc failure
[  236.729586] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  236.729592] Call Trace:
[  236.729614]  dump_stack+0x244/0x39d
[  236.729635]  ? dump_stack_print_info.cold.1+0x20/0x20
[  236.733184] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  236.742512]  warn_alloc.cold.116+0xb7/0x1bd
[  236.745066] syz-fuzzer cpuset=/ mems_allowed=0
[  236.748686]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  236.777773]  ? lock_downgrade+0x900/0x900
[  236.781936]  ? trace_hardirqs_off+0xb8/0x310
[  236.786357]  ? trace_hardirqs_off+0xb8/0x310
[  236.790781]  __alloc_pages_slowpath+0x2651/0x2de0
[  236.795654]  ? warn_alloc+0x120/0x120
[  236.799458]  ? print_usage_bug+0xc0/0xc0
[  236.803523]  ? warn_alloc+0x120/0x120
[  236.807331]  ? warn_alloc+0x120/0x120
[  236.811134]  ? print_usage_bug+0xc0/0xc0
[  236.815198]  ? print_usage_bug+0xc0/0xc0
[  236.819259]  ? __lock_acquire+0x62f/0x4c20
[  236.823510]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  236.829054]  ? should_fail+0x22d/0xd01
[  236.832949]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  236.838053]  ? __lock_acquire+0x62f/0x4c20
[  236.842292]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  236.847395]  ? __lock_acquire+0x62f/0x4c20
[  236.851626]  ? should_fail+0x22d/0xd01
[  236.855514]  ? find_held_lock+0x36/0x1c0
[  236.859582]  ? mark_held_locks+0x130/0x130
[  236.863824]  ? mark_held_locks+0x130/0x130
[  236.868061]  ? zap_class+0x640/0x640
[  236.871790]  ? mark_held_locks+0xc7/0x130
[  236.875936]  ? do_raw_spin_unlock+0xa7/0x330
[  236.880345]  ? zap_class+0x640/0x640
[  236.884059]  ? print_usage_bug+0xc0/0xc0
[  236.888126]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.893668]  ? check_preemption_disabled+0x48/0x280
[  236.898697]  ? __lock_is_held+0xb5/0x140
[  236.902768]  __alloc_pages_nodemask+0xad8/0xea0
[  236.907435]  ? zap_class+0x640/0x640
[  236.911153]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  236.916180]  ? find_held_lock+0x36/0x1c0
[  236.920250]  ? ____cache_alloc_node+0x1c7/0x1e0
[  236.924925]  ? lock_downgrade+0x900/0x900
[  236.929081]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.934626]  cache_grow_begin+0xa5/0x8c0
[  236.938704]  ? do_raw_spin_unlock+0xa7/0x330
[  236.943134]  fallback_alloc+0x204/0x2e0
[  236.947113]  ____cache_alloc_node+0x1c7/0x1e0
[  236.951613]  kmem_cache_alloc_node+0xe3/0x730
[  236.956108]  ? ipv6_get_ifaddr+0x42e/0x620
[  236.960356]  __alloc_skb+0x119/0x770
[  236.964068]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  236.969348]  ? netdev_alloc_frag+0x1f0/0x1f0
[  236.973759]  ? lock_downgrade+0x900/0x900
[  236.977923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.983463]  ? refcount_sub_and_test_checked+0x203/0x310
[  236.988920]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  236.994371]  ? addrconf_rs_timer+0x690/0x690
[  236.998790]  ndisc_alloc_skb+0x144/0x340
[  237.002857]  ndisc_send_rs+0x331/0x6e0
[  237.006758]  addrconf_rs_timer+0x314/0x690
[  237.010999]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.015245]  call_timer_fn+0x272/0x920
[  237.019143]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.023379]  ? process_timeout+0x40/0x40
[  237.027457]  ? __run_timers+0x7da/0xc70
[  237.031433]  ? _raw_spin_unlock_irq+0x27/0x80
[  237.035929]  ? _raw_spin_unlock_irq+0x27/0x80
[  237.040431]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.044668]  ? lockdep_hardirqs_on+0x296/0x5b0
[  237.049256]  ? trace_hardirqs_on+0xbd/0x310
[  237.053580]  ? kasan_check_read+0x11/0x20
[  237.057731]  ? __run_timers+0x7da/0xc70
[  237.061706]  ? trace_hardirqs_off_caller+0x310/0x310
[  237.066818]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.071155]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.075391]  __run_timers+0x7e5/0xc70
[  237.079202]  ? timer_fixup_init+0x70/0x70
[  237.083351]  ? _raw_spin_unlock_irq+0x27/0x80
[  237.087847]  ? _raw_spin_unlock_irq+0x27/0x80
[  237.092359]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  237.096948]  ? trace_hardirqs_on+0xbd/0x310
[  237.101271]  ? kasan_check_read+0x11/0x20
[  237.105420]  ? finish_task_switch+0x1f4/0x910
[  237.109917]  ? trace_hardirqs_off_caller+0x310/0x310
[  237.115018]  ? compat_start_thread+0x80/0x80
[  237.119448]  ? pvclock_read_flags+0x160/0x160
[  237.123940]  ? __switch_to_asm+0x34/0x70
[  237.128003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.133545]  ? check_preemption_disabled+0x48/0x280
[  237.138571]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  237.144115]  ? rcu_pm_notify+0xc0/0xc0
[  237.148011]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.153553]  ? check_preemption_disabled+0x48/0x280
[  237.158573]  run_timer_softirq+0x52/0xb0
[  237.162632]  ? rcu_read_lock_sched_held+0x14f/0x180
[  237.167649]  __do_softirq+0x308/0xb7e
[  237.171457]  ? trace_hardirqs_on_caller+0xc0/0x310
[  237.176389]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  237.181491]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  237.186940]  ? trace_hardirqs_on+0x310/0x310
[  237.191354]  ? schedule+0x108/0x460
[  237.194996]  ? trace_hardirqs_off+0xb8/0x310
[  237.199406]  ? smpboot_thread_fn+0x68b/0xa00
[  237.203818]  ? trace_hardirqs_on+0x310/0x310
[  237.208227]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.213764]  ? check_preemption_disabled+0x48/0x280
[  237.218783]  ? takeover_tasklets+0xa90/0xa90
[  237.223193]  run_ksoftirqd+0x5e/0x100
[  237.226995]  smpboot_thread_fn+0x68b/0xa00
[  237.231232]  ? sort_range+0x30/0x30
[  237.234888]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  237.240001]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.245542]  ? __kthread_parkme+0xfb/0x1a0
[  237.249783]  ? sort_range+0x30/0x30
[  237.253412]  kthread+0x35a/0x440
[  237.256783]  ? kthread_stop+0x900/0x900
[  237.260758]  ret_from_fork+0x3a/0x50
[  237.264485] warn_alloc_show_mem: 1 callbacks suppressed
[  237.264497] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  237.264499] Mem-Info:
[  237.264530] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  237.264530]  active_file:12 inactive_file:14 isolated_file:0
[  237.264530]  unevictable:0 dirty:0 writeback:0 unstable:0
[  237.264530]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  237.264530]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  237.264530]  free:13757 free_pcp:113 free_cma:0
[  237.269867] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  237.276809] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  237.279205] Call Trace:
[  237.312247] 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
[  237.321596]  <IRQ>
[  237.349436] lowmem_reserve[]: 0 2818 6321 6321
[  237.352029]  dump_stack+0x244/0x39d
[  237.378111] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  237.380266]  ? dump_stack_print_info.cold.1+0x20/0x20
[  237.384810] lowmem_reserve[]: 0 0 3503 3503
[  237.388446]  warn_alloc.cold.116+0xb7/0x1bd
[  237.415919] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  237.421107]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  237.425400] lowmem_reserve[]: 0 0 0 0
[  237.429716]  ? lock_downgrade+0x900/0x900
[  237.458756] 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
[  237.463604]  ? trace_hardirqs_off+0xb8/0x310
[  237.467375] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  237.471524]  ? trace_hardirqs_off+0xb8/0x310
[  237.485019] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  237.489436]  __alloc_pages_slowpath+0x2651/0x2de0
[  237.504957] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  237.509376]  ? warn_alloc+0x120/0x120
[  237.523911] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  237.528747]  ? warn_alloc+0x120/0x120
[  237.537555] 4236 total pagecache pages
[  237.541357]  ? __lock_acquire+0x62f/0x4c20
[  237.549922] 0 pages in swap cache
[  237.553710]  ? warn_alloc+0x120/0x120
[  237.557574] Swap cache stats: add 0, delete 0, find 0/0
[  237.561797]  ? print_usage_bug+0xc0/0xc0
[  237.565226] Free swap  = 0kB
[  237.569016]  ? print_usage_bug+0xc0/0xc0
[  237.574359] Total swap = 0kB
[  237.578433]  ? mark_held_locks+0x130/0x130
[  237.581431] 1965979 pages RAM
[  237.585485]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.588481] 0 pages HighMem/MovableOnly
[  237.592707]  ? should_fail+0x22d/0xd01
[  237.595791] 342854 pages reserved
[  237.601320]  ? zap_class+0x640/0x640
[  237.605271] 0 pages cma reserved
[  237.609158]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  237.612654] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  237.616286]  ? __lock_acquire+0x62f/0x4c20
[  237.616304]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  237.616319]  ? should_fail+0x22d/0xd01
[  237.619789] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  237.624774]  ? mark_held_locks+0x130/0x130
[  237.631239] ksoftirqd/0 cpuset=/ mems_allowed=0
[  237.635466]  ? mark_held_locks+0x130/0x130
[  237.667841]  ? lock_downgrade+0x900/0x900
[  237.672002]  ? zap_class+0x640/0x640
[  237.675716]  ? zap_class+0x640/0x640
[  237.679437]  ? zap_class+0x640/0x640
[  237.683148]  ? do_raw_spin_unlock+0xa7/0x330
[  237.687557]  ? trace_hardirqs_on+0x310/0x310
[  237.691970]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.697510]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.703052]  ? check_preemption_disabled+0x48/0x280
[  237.708078]  ? __lock_is_held+0xb5/0x140
[  237.712146]  __alloc_pages_nodemask+0xad8/0xea0
[  237.716816]  ? zap_class+0x640/0x640
[  237.720542]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  237.725569]  ? find_held_lock+0x36/0x1c0
[  237.729641]  ? ____cache_alloc_node+0x1c7/0x1e0
[  237.734310]  ? lock_downgrade+0x900/0x900
[  237.738467]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.744009]  cache_grow_begin+0xa5/0x8c0
[  237.748076]  ? do_raw_spin_unlock+0xa7/0x330
[  237.752495]  fallback_alloc+0x204/0x2e0
[  237.756482]  ____cache_alloc_node+0x1c7/0x1e0
[  237.760983]  kmem_cache_alloc_node+0xe3/0x730
[  237.765484]  ? lockdep_hardirqs_on+0x296/0x5b0
[  237.770074]  __alloc_skb+0x119/0x770
[  237.773789]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  237.779158]  ? netdev_alloc_frag+0x1f0/0x1f0
[  237.783668]  ? vprintk_default+0x28/0x30
[  237.787739]  ? vprintk_func+0x85/0x181
[  237.791632]  ? printk+0xa7/0xcf
[  237.794912]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  237.799677]  new_skb+0x26/0x1c0
[  237.802958]  aoecmd_cfg+0x279/0x7f0
[  237.806586]  ? find_held_lock+0x36/0x1c0
[  237.810651]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  237.814985]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.820534]  ? __lock_is_held+0xb5/0x140
[  237.824611]  discover_timer+0x50/0x60
[  237.828415]  call_timer_fn+0x272/0x920
[  237.832302]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  237.837149]  ? process_timeout+0x40/0x40
[  237.841222]  ? mark_held_locks+0xc7/0x130
[  237.845369]  ? _raw_spin_unlock_irq+0x27/0x80
[  237.849866]  ? _raw_spin_unlock_irq+0x27/0x80
[  237.854371]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  237.859219]  ? lockdep_hardirqs_on+0x296/0x5b0
[  237.863807]  ? trace_hardirqs_on+0xbd/0x310
[  237.868131]  ? kasan_check_read+0x11/0x20
[  237.872276]  ? __run_timers+0x7da/0xc70
[  237.876254]  ? trace_hardirqs_off_caller+0x310/0x310
[  237.881372]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  237.886218]  __run_timers+0x7e5/0xc70
[  237.890029]  ? timer_fixup_init+0x70/0x70
[  237.894184]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  237.899202]  ? zap_class+0x640/0x640
[  237.902921]  ? print_usage_bug+0xc0/0xc0
[  237.906988]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  237.912189]  ? find_held_lock+0x36/0x1c0
[  237.916256]  ? zap_class+0x640/0x640
[  237.919975]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.925529]  ? check_preemption_disabled+0x48/0x280
[  237.930571]  ? __lock_is_held+0xb5/0x140
[  237.934647]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.940199]  ? check_preemption_disabled+0x48/0x280
[  237.945220]  run_timer_softirq+0x52/0xb0
[  237.949282]  ? rcu_read_lock_sched_held+0x14f/0x180
[  237.954303]  __do_softirq+0x308/0xb7e
[  237.958283]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  237.962776]  ? lock_downgrade+0x900/0x900
[  237.966938]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  237.972052]  ? pvclock_read_flags+0x160/0x160
[  237.976551]  ? lapic_next_event+0x5a/0x90
[  237.980706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.986247]  ? kvm_clock_read+0x18/0x30
[  237.990219]  ? kvm_sched_clock_read+0x9/0x20
[  237.994634]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.000173]  ? check_preemption_disabled+0x48/0x280
[  238.005198]  irq_exit+0x17f/0x1c0
[  238.008657]  smp_apic_timer_interrupt+0x1cb/0x760
[  238.013501]  ? smp_call_function_single_interrupt+0x159/0x650
[  238.019390]  ? smp_call_function_single_interrupt+0x650/0x650
[  238.025278]  ? interrupt_entry+0xb5/0xc0
[  238.029357]  ? trace_hardirqs_off_caller+0xbb/0x310
[  238.034376]  ? trace_hardirqs_off_caller+0xbb/0x310
[  238.039405]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  238.044248]  ? trace_hardirqs_on_caller+0x310/0x310
[  238.049266]  ? trace_hardirqs_on_caller+0x310/0x310
[  238.054329]  ? task_prio+0x50/0x50
[  238.057870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.063421]  ? check_preemption_disabled+0x48/0x280
[  238.068444]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  238.073295]  apic_timer_interrupt+0xf/0x20
[  238.077543]  </IRQ>
[  238.079795] RIP: 0010:dump_stack+0x358/0x39d
[  238.084211] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  238.103113] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  238.110819] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  238.118086] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  238.125352] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  238.132623] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  238.139897] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  238.147188]  ? dump_stack+0x34f/0x39d
[  238.151001]  ? dump_stack_print_info.cold.1+0x20/0x20
[  238.156195]  ? mark_held_locks+0x130/0x130
[  238.160444]  ? mark_held_locks+0x130/0x130
[  238.164683]  dump_header+0x27b/0xf72
[  238.168417]  ? pagefault_out_of_memory+0x197/0x197
[  238.173357]  ? __lock_acquire+0x62f/0x4c20
[  238.177597]  ? percpu_ref_get_many+0x240/0x240
[  238.182614]  ? print_usage_bug+0xc0/0xc0
[  238.186685]  ? zap_class+0x640/0x640
[  238.190406]  ? print_usage_bug+0xc0/0xc0
[  238.194468]  ? print_usage_bug+0xc0/0xc0
[  238.198529]  ? zap_class+0x640/0x640
[  238.202244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.207782]  ? find_held_lock+0x36/0x1c0
[  238.211855]  ? mark_held_locks+0xc7/0x130
[  238.216017]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  238.221122]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  238.226227]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  238.230818]  ? trace_hardirqs_on+0xbd/0x310
[  238.235144]  ? kasan_check_read+0x11/0x20
[  238.239291]  ? ___ratelimit+0x3b4/0x672
[  238.243265]  ? trace_hardirqs_off_caller+0x310/0x310
[  238.248372]  ? trace_hardirqs_on+0x310/0x310
[  238.252784]  ? lock_downgrade+0x900/0x900
[  238.256937]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  238.262051]  ? ___ratelimit+0x3b9/0x672
[  238.266027]  ? idr_get_free+0xf70/0xf70
[  238.270006]  ? find_held_lock+0x36/0x1c0
[  238.274079]  oom_kill_process.cold.27+0x10/0x903
[  238.278840]  ? zap_class+0x640/0x640
[  238.282563]  ? check_preemption_disabled+0x48/0x280
[  238.287586]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  238.292515]  ? kasan_check_read+0x11/0x20
[  238.296660]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.301943]  ? oom_evaluate_task+0x540/0x540
[  238.306358]  ? find_held_lock+0x36/0x1c0
[  238.310431]  ? out_of_memory+0x974/0x1430
[  238.314582]  ? lock_downgrade+0x900/0x900
[  238.318734]  ? check_preemption_disabled+0x48/0x280
[  238.323756]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  238.328689]  ? kasan_check_read+0x11/0x20
[  238.332839]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.338122]  ? rcu_softirq_qs+0x20/0x20
[  238.342111]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.347656]  ? oom_evaluate_task+0x302/0x540
[  238.352069]  out_of_memory+0xa84/0x1430
[  238.356056]  ? oom_killer_disable+0x3a0/0x3a0
[  238.360551]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  238.365484]  ? __ww_mutex_check_waiters+0x160/0x160
[  238.370512]  __alloc_pages_slowpath+0x232c/0x2de0
[  238.375389]  ? warn_alloc+0x120/0x120
[  238.379192]  ? mark_held_locks+0x130/0x130
[  238.383434]  ? find_get_entry+0xaae/0x1120
[  238.387682]  ? filemap_map_pages+0x1a20/0x1a20
[  238.392270]  ? zap_class+0x640/0x640
[  238.395991]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.401532]  ? check_preemption_disabled+0x48/0x280
[  238.406551]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.412091]  ? should_fail+0x22d/0xd01
[  238.415988]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  238.421096]  ? zap_class+0x640/0x640
[  238.424838]  ? __lock_is_held+0xb5/0x140
[  238.428920]  ? mark_held_locks+0x130/0x130
[  238.433325]  ? lock_release+0xa00/0xa00
[  238.437301]  ? perf_trace_sched_process_exec+0x860/0x860
[  238.442756]  ? xa_load+0x2ba/0x460
[  238.446297]  ? lock_downgrade+0x900/0x900
[  238.450450]  ? __might_sleep+0x95/0x190
[  238.454429]  __alloc_pages_nodemask+0xad8/0xea0
[  238.459105]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  238.464124]  ? __page_cache_alloc+0x191/0x5c0
[  238.468621]  ? xa_load+0x2e1/0x460
[  238.472162]  ? xa_clear_mark+0x40/0x40
[  238.476049]  ? zap_class+0x640/0x640
[  238.479773]  ? zap_class+0x640/0x640
[  238.483483]  ? zap_class+0x640/0x640
[  238.487200]  ? __do_page_cache_readahead+0x663/0x810
[  238.492309]  ? find_held_lock+0x36/0x1c0
[  238.496376]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  238.501930]  alloc_pages_current+0x173/0x350
[  238.506350]  __page_cache_alloc+0x38c/0x5c0
[  238.510675]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  238.515602]  ? kasan_check_read+0x11/0x20
[  238.519752]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.525033]  ? generic_perform_write+0x6a0/0x6a0
[  238.529801]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.535343]  ? check_preemption_disabled+0x48/0x280
[  238.540367]  filemap_fault+0x1595/0x25f0
[  238.544444]  ? __lock_page_or_retry+0xa00/0xa00
[  238.549114]  ? mark_held_locks+0x130/0x130
[  238.553360]  ? filemap_map_pages+0xd6b/0x1a20
[  238.557859]  ? lock_downgrade+0x900/0x900
[  238.562442]  ? check_preemption_disabled+0x48/0x280
[  238.567467]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  238.572400]  ? kasan_check_read+0x11/0x20
[  238.576551]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.581826]  ? rcu_softirq_qs+0x20/0x20
[  238.585815]  ? filemap_map_pages+0xd92/0x1a20
[  238.590326]  ? find_get_entries_tag+0x1400/0x1400
[  238.595178]  ? debug_object_destroy+0x2b0/0x2b0
[  238.599849]  ? lock_pi_update_atomic+0x150/0x150
[  238.604614]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.610165]  ? lock_acquire+0x1ed/0x520
[  238.614141]  ? ext4_filemap_fault+0x7a/0xad
[  238.618470]  ? lock_release+0xa00/0xa00
[  238.622443]  ? perf_trace_sched_process_exec+0x860/0x860
[  238.627898]  ? print_usage_bug+0xc0/0xc0
[  238.631961]  ? print_usage_bug+0xc0/0xc0
[  238.636034]  ? down_read+0x8d/0x120
[  238.639659]  ? ext4_filemap_fault+0x7a/0xad
[  238.643987]  ? __down_interruptible+0x700/0x700
[  238.648667]  ext4_filemap_fault+0x82/0xad
[  238.652817]  __do_fault+0x100/0x6b0
[  238.656442]  ? find_held_lock+0x36/0x1c0
[  238.660504]  ? pmd_devmap_trans_unstable+0x220/0x220
[  238.665610]  ? mark_held_locks+0x130/0x130
[  238.669849]  ? mark_held_locks+0x130/0x130
[  238.674091]  ? _raw_spin_unlock_irq+0x27/0x80
[  238.678588]  ? _raw_spin_unlock_irq+0x27/0x80
[  238.683084]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  238.687673]  ? kasan_check_read+0x11/0x20
[  238.691822]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.697369]  __handle_mm_fault+0x3ea0/0x5be0
[  238.701800]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  238.706648]  ? finish_task_switch+0x1f4/0x910
[  238.711147]  ? finish_task_switch+0x1b4/0x910
[  238.715654]  ? __switch_to_asm+0x34/0x70
[  238.719723]  ? preempt_notifier_register+0x200/0x200
[  238.724827]  ? __switch_to_asm+0x34/0x70
[  238.728896]  ? __switch_to_asm+0x34/0x70
[  238.732977]  ? zap_class+0x640/0x640
[  238.736694]  ? zap_class+0x640/0x640
[  238.740412]  ? __x64_sys_futex+0x53e/0x6a0
[  238.744654]  ? find_held_lock+0x36/0x1c0
[  238.748724]  ? handle_mm_fault+0x42a/0xc70
[  238.752967]  ? lock_downgrade+0x900/0x900
[  238.757133]  ? check_preemption_disabled+0x48/0x280
[  238.762157]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  238.767086]  ? kasan_check_read+0x11/0x20
[  238.771233]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.776509]  ? rcu_softirq_qs+0x20/0x20
[  238.780486]  ? trace_hardirqs_off_caller+0x310/0x310
[  238.785595]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.791136]  ? check_preemption_disabled+0x48/0x280
[  238.796162]  handle_mm_fault+0x54f/0xc70
[  238.800242]  ? __handle_mm_fault+0x5be0/0x5be0
[  238.804830]  ? find_vma+0x34/0x190
[  238.808374]  __do_page_fault+0x5e8/0xe60
[  238.812447]  ? trace_hardirqs_off+0xb8/0x310
[  238.816879]  do_page_fault+0xf2/0x7e0
[  238.820686]  ? vmalloc_sync_all+0x30/0x30
[  238.824832]  ? error_entry+0x70/0xd0
[  238.828548]  ? trace_hardirqs_off_caller+0xbb/0x310
[  238.833568]  ? trace_hardirqs_on_caller+0xc0/0x310
[  238.838501]  ? syscall_return_slowpath+0x5e0/0x5e0
[  238.843441]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  238.848294]  ? trace_hardirqs_on_caller+0x310/0x310
[  238.853311]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  238.858780]  ? prepare_exit_to_usermode+0x291/0x3b0
[  238.863795]  ? page_fault+0x8/0x30
[  238.867337]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  238.872185]  ? page_fault+0x8/0x30
[  238.875729]  page_fault+0x1e/0x30
[  238.879179] RIP: 0033:0x40f9c0
[  238.882390] Code: Bad RIP value.
[  238.885755] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  238.891118] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  238.898381] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  238.905653] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  238.912922] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  238.920187] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  238.927482] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  238.927545] aoe: skb alloc failure
[  238.934238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  238.934246] Call Trace:
[  238.937831] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  238.947124]  dump_stack+0x244/0x39d
[  238.949687] syz-fuzzer cpuset=/ mems_allowed=0
[  238.959923]  ? dump_stack_print_info.cold.1+0x20/0x20
[  238.973287]  warn_alloc.cold.116+0xb7/0x1bd
[  238.977615]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  238.982462]  ? lock_downgrade+0x900/0x900
[  238.986617]  ? trace_hardirqs_off+0xb8/0x310
[  238.991033]  ? trace_hardirqs_off+0xb8/0x310
[  238.995455]  __alloc_pages_slowpath+0x2651/0x2de0
[  239.000329]  ? warn_alloc+0x120/0x120
[  239.004136]  ? print_usage_bug+0xc0/0xc0
[  239.008200]  ? warn_alloc+0x120/0x120
[  239.012010]  ? warn_alloc+0x120/0x120
[  239.015811]  ? print_usage_bug+0xc0/0xc0
[  239.019881]  ? print_usage_bug+0xc0/0xc0
[  239.023952]  ? print_usage_bug+0xc0/0xc0
[  239.028017]  ? __lock_acquire+0x62f/0x4c20
[  239.032259]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.037801]  ? should_fail+0x22d/0xd01
[  239.041686]  ? __lock_acquire+0x62f/0x4c20
[  239.045924]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  239.051030]  ? __lock_acquire+0x62f/0x4c20
[  239.055272]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  239.060375]  ? __lock_acquire+0x62f/0x4c20
[  239.064608]  ? should_fail+0x22d/0xd01
[  239.068504]  ? mark_held_locks+0x130/0x130
[  239.072742]  ? mark_held_locks+0x130/0x130
[  239.076976]  ? zap_class+0x640/0x640
[  239.080694]  ? zap_class+0x640/0x640
[  239.084408]  ? print_usage_bug+0xc0/0xc0
[  239.088469]  ? do_raw_spin_unlock+0xa7/0x330
[  239.092900]  ? zap_class+0x640/0x640
[  239.096618]  ? print_usage_bug+0xc0/0xc0
[  239.100679]  ? wq_watchdog_touch+0x9c/0xfe
[  239.104925]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.110466]  ? check_preemption_disabled+0x48/0x280
[  239.115496]  ? __lock_is_held+0xb5/0x140
[  239.119564]  __alloc_pages_nodemask+0xad8/0xea0
[  239.124232]  ? zap_class+0x640/0x640
[  239.127951]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  239.132987]  ? find_held_lock+0x36/0x1c0
[  239.137060]  ? ____cache_alloc_node+0x1c7/0x1e0
[  239.141732]  ? lock_downgrade+0x900/0x900
[  239.145900]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.151444]  cache_grow_begin+0xa5/0x8c0
[  239.155504]  ? do_raw_spin_unlock+0xa7/0x330
[  239.159926]  fallback_alloc+0x204/0x2e0
[  239.163921]  ____cache_alloc_node+0x1c7/0x1e0
[  239.168421]  kmem_cache_alloc_node+0xe3/0x730
[  239.172916]  ? ipv6_get_ifaddr+0x42e/0x620
[  239.177159]  __alloc_skb+0x119/0x770
[  239.180881]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.186167]  ? netdev_alloc_frag+0x1f0/0x1f0
[  239.190579]  ? lock_downgrade+0x900/0x900
[  239.194733]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.200270]  ? refcount_sub_and_test_checked+0x203/0x310
[  239.205724]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  239.211181]  ? addrconf_rs_timer+0x690/0x690
[  239.215602]  ndisc_alloc_skb+0x144/0x340
[  239.219669]  ndisc_send_rs+0x331/0x6e0
[  239.223560]  addrconf_rs_timer+0x314/0x690
[  239.227831]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  239.232079]  call_timer_fn+0x272/0x920
[  239.235969]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  239.240204]  ? process_timeout+0x40/0x40
[  239.244272]  ? __run_timers+0x7da/0xc70
[  239.248250]  ? _raw_spin_unlock_irq+0x27/0x80
[  239.252748]  ? _raw_spin_unlock_irq+0x27/0x80
[  239.257242]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  239.261479]  ? lockdep_hardirqs_on+0x296/0x5b0
[  239.266063]  ? trace_hardirqs_on+0xbd/0x310
[  239.270384]  ? kasan_check_read+0x11/0x20
[  239.274531]  ? __run_timers+0x7da/0xc70
[  239.278510]  ? trace_hardirqs_off_caller+0x310/0x310
[  239.283628]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  239.287863]  __run_timers+0x7e5/0xc70
[  239.291686]  ? timer_fixup_init+0x70/0x70
[  239.295836]  ? _raw_spin_unlock_irq+0x27/0x80
[  239.300329]  ? _raw_spin_unlock_irq+0x27/0x80
[  239.304835]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  239.309421]  ? trace_hardirqs_on+0xbd/0x310
[  239.313742]  ? kasan_check_read+0x11/0x20
[  239.317905]  ? finish_task_switch+0x1f4/0x910
[  239.322401]  ? trace_hardirqs_off_caller+0x310/0x310
[  239.327506]  ? compat_start_thread+0x80/0x80
[  239.331939]  ? pvclock_read_flags+0x160/0x160
[  239.336434]  ? __switch_to_asm+0x34/0x70
[  239.340497]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.346034]  ? check_preemption_disabled+0x48/0x280
[  239.351065]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  239.356606]  ? rcu_pm_notify+0xc0/0xc0
[  239.360493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.366033]  ? check_preemption_disabled+0x48/0x280
[  239.371076]  run_timer_softirq+0x52/0xb0
[  239.375140]  ? rcu_read_lock_sched_held+0x14f/0x180
[  239.380160]  __do_softirq+0x308/0xb7e
[  239.383970]  ? trace_hardirqs_on_caller+0xc0/0x310
[  239.388916]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  239.394017]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  239.399471]  ? trace_hardirqs_on+0x310/0x310
[  239.403898]  ? schedule+0x108/0x460
[  239.407539]  ? trace_hardirqs_off+0xb8/0x310
[  239.411950]  ? smpboot_thread_fn+0x68b/0xa00
[  239.416363]  ? trace_hardirqs_on+0x310/0x310
[  239.420774]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.426324]  ? check_preemption_disabled+0x48/0x280
[  239.431343]  ? takeover_tasklets+0xa90/0xa90
[  239.435770]  run_ksoftirqd+0x5e/0x100
[  239.439592]  smpboot_thread_fn+0x68b/0xa00
[  239.443829]  ? sort_range+0x30/0x30
[  239.447459]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  239.452562]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.458101]  ? __kthread_parkme+0xfb/0x1a0
[  239.462340]  ? sort_range+0x30/0x30
[  239.465965]  kthread+0x35a/0x440
[  239.469333]  ? kthread_stop+0x900/0x900
[  239.473309]  ret_from_fork+0x3a/0x50
[  239.477034] warn_alloc_show_mem: 1 callbacks suppressed
[  239.477046] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  239.477048] Mem-Info:
[  239.477080] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  239.477080]  active_file:12 inactive_file:14 isolated_file:0
[  239.477080]  unevictable:0 dirty:0 writeback:0 unstable:0
[  239.477080]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  239.477080]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  239.477080]  free:13757 free_pcp:113 free_cma:0
[  239.482417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  239.489348] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  239.491748] Call Trace:
[  239.524794] 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
[  239.534139]  <IRQ>
[  239.561963] lowmem_reserve[]: 0 2818 6321 6321
[  239.564562]  dump_stack+0x244/0x39d
[  239.590642] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  239.592791]  ? dump_stack_print_info.cold.1+0x20/0x20
[  239.597342] lowmem_reserve[]: 0 0 3503 3503
[  239.600976]  warn_alloc.cold.116+0xb7/0x1bd
[  239.628446] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  239.633636]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  239.637929] lowmem_reserve[]: 0 0 0 0
[  239.642254]  ? lock_downgrade+0x900/0x900
[  239.671294] 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
[  239.676139]  ? trace_hardirqs_off+0xb8/0x310
[  239.679908] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  239.684051]  ? trace_hardirqs_off+0xb8/0x310
[  239.697547] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  239.701957]  __alloc_pages_slowpath+0x2651/0x2de0
[  239.717454] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  239.721907]  ? warn_alloc+0x120/0x120
[  239.736434] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  239.741263]  ? warn_alloc+0x120/0x120
[  239.750076] 4236 total pagecache pages
[  239.753869]  ? warn_alloc+0x120/0x120
[  239.762439] 0 pages in swap cache
[  239.766231]  ? print_usage_bug+0xc0/0xc0
[  239.770096] Swap cache stats: add 0, delete 0, find 0/0
[  239.773898]  ? print_usage_bug+0xc0/0xc0
[  239.777328] Free swap  = 0kB
[  239.781399]  ? ktime_get+0x2c1/0x400
[  239.786732] Total swap = 0kB
[  239.786740] 1965979 pages RAM
[  239.790802]  ? check_preemption_disabled+0x48/0x280
[  239.793797] 0 pages HighMem/MovableOnly
[  239.797500]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  239.800494] 342854 pages reserved
[  239.803611]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.808597] 0 pages cma reserved
[  239.812563]  ? should_fail+0x22d/0xd01
[  239.817123] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  239.820484]  ? kasan_check_read+0x11/0x20
[  239.826082] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  239.829364]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  239.833232] ksoftirqd/0 cpuset=/ mems_allowed=0
[  239.839716]  ? __lock_acquire+0x62f/0x4c20
[  239.868115]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  239.873215]  ? should_fail+0x22d/0xd01
[  239.877106]  ? print_usage_bug+0xc0/0xc0
[  239.881177]  ? mark_held_locks+0x130/0x130
[  239.885418]  ? mark_held_locks+0x130/0x130
[  239.889658]  ? check_preemption_disabled+0x48/0x280
[  239.894683]  ? zap_class+0x640/0x640
[  239.898403]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  239.903166]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.908709]  ? check_preemption_disabled+0x48/0x280
[  239.913758]  ? __lock_is_held+0xb5/0x140
[  239.917839]  __alloc_pages_nodemask+0xad8/0xea0
[  239.922543]  ? zap_class+0x640/0x640
[  239.926260]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  239.931306]  ? find_held_lock+0x36/0x1c0
[  239.935376]  ? ____cache_alloc_node+0x1c7/0x1e0
[  239.940051]  ? lock_downgrade+0x900/0x900
[  239.944221]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.949868]  cache_grow_begin+0xa5/0x8c0
[  239.953939]  ? do_raw_spin_unlock+0xa7/0x330
[  239.958357]  fallback_alloc+0x204/0x2e0
[  239.962353]  ____cache_alloc_node+0x1c7/0x1e0
[  239.966868]  kmem_cache_alloc_node+0xe3/0x730
[  239.971375]  ? lockdep_hardirqs_on+0x296/0x5b0
[  239.975977]  __alloc_skb+0x119/0x770
[  239.979688]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  239.985055]  ? netdev_alloc_frag+0x1f0/0x1f0
[  239.989474]  ? vprintk_default+0x28/0x30
[  239.993540]  ? vprintk_func+0x85/0x181
[  239.997429]  ? printk+0xa7/0xcf
[  240.000707]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  240.005471]  new_skb+0x26/0x1c0
[  240.008750]  aoecmd_cfg+0x279/0x7f0
[  240.012381]  ? find_held_lock+0x36/0x1c0
[  240.016451]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  240.020791]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.026338]  ? __lock_is_held+0xb5/0x140
[  240.030430]  discover_timer+0x50/0x60
[  240.034245]  call_timer_fn+0x272/0x920
[  240.038131]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  240.042976]  ? process_timeout+0x40/0x40
[  240.047047]  ? mark_held_locks+0xc7/0x130
[  240.051199]  ? _raw_spin_unlock_irq+0x27/0x80
[  240.055690]  ? _raw_spin_unlock_irq+0x27/0x80
[  240.060187]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  240.065032]  ? lockdep_hardirqs_on+0x296/0x5b0
[  240.069619]  ? trace_hardirqs_on+0xbd/0x310
[  240.073940]  ? kasan_check_read+0x11/0x20
[  240.078085]  ? __run_timers+0x7da/0xc70
[  240.082065]  ? trace_hardirqs_off_caller+0x310/0x310
[  240.087180]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  240.092024]  __run_timers+0x7e5/0xc70
[  240.095834]  ? timer_fixup_init+0x70/0x70
[  240.099984]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  240.105006]  ? zap_class+0x640/0x640
[  240.108729]  ? print_usage_bug+0xc0/0xc0
[  240.112795]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  240.117997]  ? find_held_lock+0x36/0x1c0
[  240.122067]  ? zap_class+0x640/0x640
[  240.125788]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.131327]  ? check_preemption_disabled+0x48/0x280
[  240.136354]  ? __lock_is_held+0xb5/0x140
[  240.140421]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.145962]  ? check_preemption_disabled+0x48/0x280
[  240.150996]  run_timer_softirq+0x52/0xb0
[  240.155064]  ? rcu_read_lock_sched_held+0x14f/0x180
[  240.160080]  __do_softirq+0x308/0xb7e
[  240.163890]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  240.168394]  ? lock_downgrade+0x900/0x900
[  240.172546]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  240.177656]  ? pvclock_read_flags+0x160/0x160
[  240.182154]  ? lapic_next_event+0x5a/0x90
[  240.186308]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.191855]  ? kvm_clock_read+0x18/0x30
[  240.195836]  ? kvm_sched_clock_read+0x9/0x20
[  240.200245]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  240.205788]  ? check_preemption_disabled+0x48/0x280
[  240.210817]  irq_exit+0x17f/0x1c0
[  240.214276]  smp_apic_timer_interrupt+0x1cb/0x760
[  240.219118]  ? smp_call_function_single_interrupt+0x159/0x650
[  240.225002]  ? smp_call_function_single_interrupt+0x650/0x650
[  240.230897]  ? interrupt_entry+0xb5/0xc0
[  240.234970]  ? trace_hardirqs_off_caller+0xbb/0x310
[  240.239987]  ? trace_hardirqs_off_caller+0xbb/0x310
[  240.245014]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.249860]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.254893]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.259929]  ? task_prio+0x50/0x50
[  240.263474]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.269016]  ? check_preemption_disabled+0x48/0x280
[  240.274041]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.278899]  apic_timer_interrupt+0xf/0x20
[  240.283128]  </IRQ>
[  240.285370] RIP: 0010:dump_stack+0x358/0x39d
[  240.289783] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  240.308687] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  240.316396] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  240.323667] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  240.330932] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  240.338206] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  240.345476] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  240.352769]  ? dump_stack+0x34f/0x39d
[  240.356592]  ? dump_stack_print_info.cold.1+0x20/0x20
[  240.361794]  ? mark_held_locks+0x130/0x130
[  240.366027]  ? mark_held_locks+0x130/0x130
[  240.370268]  dump_header+0x27b/0xf72
[  240.373998]  ? pagefault_out_of_memory+0x197/0x197
[  240.378936]  ? __lock_acquire+0x62f/0x4c20
[  240.383171]  ? percpu_ref_get_many+0x240/0x240
[  240.387755]  ? print_usage_bug+0xc0/0xc0
[  240.391824]  ? zap_class+0x640/0x640
[  240.395544]  ? print_usage_bug+0xc0/0xc0
[  240.399602]  ? print_usage_bug+0xc0/0xc0
[  240.403674]  ? zap_class+0x640/0x640
[  240.407399]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.412942]  ? find_held_lock+0x36/0x1c0
[  240.417017]  ? mark_held_locks+0xc7/0x130
[  240.421166]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  240.426265]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  240.431563]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  240.436151]  ? trace_hardirqs_on+0xbd/0x310
[  240.440476]  ? kasan_check_read+0x11/0x20
[  240.444623]  ? ___ratelimit+0x3b4/0x672
[  240.448599]  ? trace_hardirqs_off_caller+0x310/0x310
[  240.453708]  ? trace_hardirqs_on+0x310/0x310
[  240.458150]  ? lock_downgrade+0x900/0x900
[  240.462303]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  240.467410]  ? ___ratelimit+0x3b9/0x672
[  240.471395]  ? idr_get_free+0xf70/0xf70
[  240.475374]  ? find_held_lock+0x36/0x1c0
[  240.479459]  oom_kill_process.cold.27+0x10/0x903
[  240.484220]  ? zap_class+0x640/0x640
[  240.487934]  ? check_preemption_disabled+0x48/0x280
[  240.492953]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  240.497891]  ? kasan_check_read+0x11/0x20
[  240.502045]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.507325]  ? oom_evaluate_task+0x540/0x540
[  240.511742]  ? find_held_lock+0x36/0x1c0
[  240.515810]  ? out_of_memory+0x974/0x1430
[  240.519970]  ? lock_downgrade+0x900/0x900
[  240.524117]  ? check_preemption_disabled+0x48/0x280
[  240.529134]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  240.534061]  ? kasan_check_read+0x11/0x20
[  240.538211]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.543490]  ? rcu_softirq_qs+0x20/0x20
[  240.547467]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  240.553006]  ? oom_evaluate_task+0x302/0x540
[  240.557427]  out_of_memory+0xa84/0x1430
[  240.561416]  ? oom_killer_disable+0x3a0/0x3a0
[  240.566363]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  240.571301]  ? __ww_mutex_check_waiters+0x160/0x160
[  240.576331]  __alloc_pages_slowpath+0x232c/0x2de0
[  240.581203]  ? warn_alloc+0x120/0x120
[  240.585015]  ? mark_held_locks+0x130/0x130
[  240.589259]  ? find_get_entry+0xaae/0x1120
[  240.593505]  ? filemap_map_pages+0x1a20/0x1a20
[  240.598101]  ? zap_class+0x640/0x640
[  240.601820]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.607358]  ? check_preemption_disabled+0x48/0x280
[  240.612387]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  240.617925]  ? should_fail+0x22d/0xd01
[  240.621818]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  240.626923]  ? zap_class+0x640/0x640
[  240.630663]  ? __lock_is_held+0xb5/0x140
[  240.634732]  ? mark_held_locks+0x130/0x130
[  240.638971]  ? lock_release+0xa00/0xa00
[  240.642956]  ? perf_trace_sched_process_exec+0x860/0x860
[  240.648414]  ? xa_load+0x2ba/0x460
[  240.651961]  ? lock_downgrade+0x900/0x900
[  240.656112]  ? __might_sleep+0x95/0x190
[  240.660091]  __alloc_pages_nodemask+0xad8/0xea0
[  240.664766]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  240.669782]  ? __page_cache_alloc+0x191/0x5c0
[  240.674281]  ? xa_load+0x2e1/0x460
[  240.677823]  ? xa_clear_mark+0x40/0x40
[  240.681711]  ? zap_class+0x640/0x640
[  240.685432]  ? zap_class+0x640/0x640
[  240.689146]  ? zap_class+0x640/0x640
[  240.692864]  ? __do_page_cache_readahead+0x663/0x810
[  240.697981]  ? find_held_lock+0x36/0x1c0
[  240.702050]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  240.707594]  alloc_pages_current+0x173/0x350
[  240.712013]  __page_cache_alloc+0x38c/0x5c0
[  240.716331]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  240.721259]  ? kasan_check_read+0x11/0x20
[  240.725411]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.730688]  ? generic_perform_write+0x6a0/0x6a0
[  240.735460]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  240.741003]  ? check_preemption_disabled+0x48/0x280
[  240.746030]  filemap_fault+0x1595/0x25f0
[  240.750105]  ? __lock_page_or_retry+0xa00/0xa00
[  240.754792]  ? mark_held_locks+0x130/0x130
[  240.759040]  ? filemap_map_pages+0xd6b/0x1a20
[  240.763539]  ? lock_downgrade+0x900/0x900
[  240.767690]  ? check_preemption_disabled+0x48/0x280
[  240.772709]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  240.777638]  ? kasan_check_read+0x11/0x20
[  240.781789]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.787072]  ? rcu_softirq_qs+0x20/0x20
[  240.791065]  ? filemap_map_pages+0xd92/0x1a20
[  240.795582]  ? find_get_entries_tag+0x1400/0x1400
[  240.800434]  ? debug_object_destroy+0x2b0/0x2b0
[  240.805105]  ? lock_pi_update_atomic+0x150/0x150
[  240.809869]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.815447]  ? lock_acquire+0x1ed/0x520
[  240.819423]  ? ext4_filemap_fault+0x7a/0xad
[  240.823754]  ? lock_release+0xa00/0xa00
[  240.827727]  ? perf_trace_sched_process_exec+0x860/0x860
[  240.833179]  ? print_usage_bug+0xc0/0xc0
[  240.837241]  ? print_usage_bug+0xc0/0xc0
[  240.841318]  ? down_read+0x8d/0x120
[  240.844941]  ? ext4_filemap_fault+0x7a/0xad
[  240.849265]  ? __down_interruptible+0x700/0x700
[  240.853953]  ext4_filemap_fault+0x82/0xad
[  240.858102]  __do_fault+0x100/0x6b0
[  240.861726]  ? find_held_lock+0x36/0x1c0
[  240.865794]  ? pmd_devmap_trans_unstable+0x220/0x220
[  240.870905]  ? mark_held_locks+0x130/0x130
[  240.875160]  ? mark_held_locks+0x130/0x130
[  240.879397]  ? _raw_spin_unlock_irq+0x27/0x80
[  240.883895]  ? _raw_spin_unlock_irq+0x27/0x80
[  240.888402]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  240.892988]  ? kasan_check_read+0x11/0x20
[  240.897141]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  240.902689]  __handle_mm_fault+0x3ea0/0x5be0
[  240.907106]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  240.911952]  ? finish_task_switch+0x1f4/0x910
[  240.916445]  ? finish_task_switch+0x1b4/0x910
[  240.920943]  ? __switch_to_asm+0x34/0x70
[  240.925012]  ? preempt_notifier_register+0x200/0x200
[  240.930109]  ? __switch_to_asm+0x34/0x70
[  240.934171]  ? __switch_to_asm+0x34/0x70
[  240.938249]  ? zap_class+0x640/0x640
[  240.941960]  ? zap_class+0x640/0x640
[  240.945672]  ? __x64_sys_futex+0x53e/0x6a0
[  240.949922]  ? find_held_lock+0x36/0x1c0
[  240.953999]  ? handle_mm_fault+0x42a/0xc70
[  240.958240]  ? lock_downgrade+0x900/0x900
[  240.962410]  ? check_preemption_disabled+0x48/0x280
[  240.967463]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  240.972413]  ? kasan_check_read+0x11/0x20
[  240.976563]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.981838]  ? rcu_softirq_qs+0x20/0x20
[  240.985811]  ? trace_hardirqs_off_caller+0x310/0x310
[  240.990922]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  240.996470]  ? check_preemption_disabled+0x48/0x280
[  241.001507]  handle_mm_fault+0x54f/0xc70
[  241.005571]  ? __handle_mm_fault+0x5be0/0x5be0
[  241.010157]  ? find_vma+0x34/0x190
[  241.013701]  __do_page_fault+0x5e8/0xe60
[  241.017762]  ? trace_hardirqs_off+0xb8/0x310
[  241.022182]  do_page_fault+0xf2/0x7e0
[  241.025982]  ? vmalloc_sync_all+0x30/0x30
[  241.030132]  ? error_entry+0x70/0xd0
[  241.033847]  ? trace_hardirqs_off_caller+0xbb/0x310
[  241.038879]  ? trace_hardirqs_on_caller+0xc0/0x310
[  241.043809]  ? syscall_return_slowpath+0x5e0/0x5e0
[  241.048738]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  241.053582]  ? trace_hardirqs_on_caller+0x310/0x310
[  241.058599]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  241.064054]  ? prepare_exit_to_usermode+0x291/0x3b0
[  241.069073]  ? page_fault+0x8/0x30
[  241.072616]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  241.077461]  ? page_fault+0x8/0x30
[  241.081002]  page_fault+0x1e/0x30
[  241.084453] RIP: 0033:0x40f9c0
[  241.087668] Code: Bad RIP value.
[  241.091031] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  241.096396] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  241.103667] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  241.110938] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  241.118207] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  241.125471] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  241.132793] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  241.132855] aoe: skb alloc failure
[  241.139557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  241.139563] Call Trace:
[  241.139599]  dump_stack+0x244/0x39d
[  241.139617]  ? dump_stack_print_info.cold.1+0x20/0x20
[  241.143177] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  241.152508]  warn_alloc.cold.116+0xb7/0x1bd
[  241.155064] syz-fuzzer cpuset=/ mems_allowed=0
[  241.158684]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  241.187800]  ? lock_downgrade+0x900/0x900
[  241.191957]  ? trace_hardirqs_off+0xb8/0x310
[  241.196378]  ? trace_hardirqs_off+0xb8/0x310
[  241.200820]  __alloc_pages_slowpath+0x2651/0x2de0
[  241.205695]  ? warn_alloc+0x120/0x120
[  241.209499]  ? print_usage_bug+0xc0/0xc0
[  241.213587]  ? warn_alloc+0x120/0x120
[  241.217414]  ? warn_alloc+0x120/0x120
[  241.221228]  ? print_usage_bug+0xc0/0xc0
[  241.225311]  ? print_usage_bug+0xc0/0xc0
[  241.229372]  ? __lock_acquire+0x62f/0x4c20
[  241.233617]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.239158]  ? should_fail+0x22d/0xd01
[  241.243054]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  241.248157]  ? __lock_acquire+0x62f/0x4c20
[  241.252406]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  241.257511]  ? __lock_acquire+0x62f/0x4c20
[  241.261745]  ? should_fail+0x22d/0xd01
[  241.265631]  ? find_held_lock+0x36/0x1c0
[  241.269706]  ? mark_held_locks+0x130/0x130
[  241.273946]  ? mark_held_locks+0x130/0x130
[  241.278178]  ? zap_class+0x640/0x640
[  241.281911]  ? mark_held_locks+0xc7/0x130
[  241.286056]  ? do_raw_spin_unlock+0xa7/0x330
[  241.290469]  ? zap_class+0x640/0x640
[  241.294186]  ? print_usage_bug+0xc0/0xc0
[  241.298255]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.303794]  ? check_preemption_disabled+0x48/0x280
[  241.308821]  ? __lock_is_held+0xb5/0x140
[  241.312899]  __alloc_pages_nodemask+0xad8/0xea0
[  241.317578]  ? zap_class+0x640/0x640
[  241.321294]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  241.326324]  ? find_held_lock+0x36/0x1c0
[  241.330395]  ? ____cache_alloc_node+0x1c7/0x1e0
[  241.335068]  ? lock_downgrade+0x900/0x900
[  241.339228]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.344774]  cache_grow_begin+0xa5/0x8c0
[  241.348837]  ? do_raw_spin_unlock+0xa7/0x330
[  241.353251]  fallback_alloc+0x204/0x2e0
[  241.357232]  ____cache_alloc_node+0x1c7/0x1e0
[  241.361731]  kmem_cache_alloc_node+0xe3/0x730
[  241.366226]  ? ipv6_get_ifaddr+0x42e/0x620
[  241.370472]  __alloc_skb+0x119/0x770
[  241.374188]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  241.379479]  ? netdev_alloc_frag+0x1f0/0x1f0
[  241.383901]  ? lock_downgrade+0x900/0x900
[  241.388063]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.393603]  ? refcount_sub_and_test_checked+0x203/0x310
[  241.399056]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  241.404507]  ? addrconf_rs_timer+0x690/0x690
[  241.408932]  ndisc_alloc_skb+0x144/0x340
[  241.413000]  ndisc_send_rs+0x331/0x6e0
[  241.416909]  addrconf_rs_timer+0x314/0x690
[  241.421152]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  241.425399]  call_timer_fn+0x272/0x920
[  241.429288]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  241.433523]  ? process_timeout+0x40/0x40
[  241.437595]  ? __run_timers+0x7da/0xc70
[  241.441572]  ? _raw_spin_unlock_irq+0x27/0x80
[  241.446063]  ? _raw_spin_unlock_irq+0x27/0x80
[  241.450557]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  241.454795]  ? lockdep_hardirqs_on+0x296/0x5b0
[  241.459380]  ? trace_hardirqs_on+0xbd/0x310
[  241.463707]  ? kasan_check_read+0x11/0x20
[  241.467852]  ? __run_timers+0x7da/0xc70
[  241.471839]  ? trace_hardirqs_off_caller+0x310/0x310
[  241.476953]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  241.481193]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  241.485425]  __run_timers+0x7e5/0xc70
[  241.489234]  ? timer_fixup_init+0x70/0x70
[  241.493380]  ? _raw_spin_unlock_irq+0x27/0x80
[  241.497881]  ? _raw_spin_unlock_irq+0x27/0x80
[  241.502387]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  241.506976]  ? trace_hardirqs_on+0xbd/0x310
[  241.511302]  ? kasan_check_read+0x11/0x20
[  241.515451]  ? finish_task_switch+0x1f4/0x910
[  241.519947]  ? trace_hardirqs_off_caller+0x310/0x310
[  241.525050]  ? compat_start_thread+0x80/0x80
[  241.529487]  ? pvclock_read_flags+0x160/0x160
[  241.533985]  ? __switch_to_asm+0x34/0x70
[  241.538051]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.543603]  ? check_preemption_disabled+0x48/0x280
[  241.548635]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  241.554174]  ? rcu_pm_notify+0xc0/0xc0
[  241.558063]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.563604]  ? check_preemption_disabled+0x48/0x280
[  241.568629]  run_timer_softirq+0x52/0xb0
[  241.572695]  ? rcu_read_lock_sched_held+0x14f/0x180
[  241.577712]  __do_softirq+0x308/0xb7e
[  241.581520]  ? trace_hardirqs_on_caller+0xc0/0x310
[  241.586455]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  241.591558]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  241.597011]  ? trace_hardirqs_on+0x310/0x310
[  241.601427]  ? schedule+0x108/0x460
[  241.605067]  ? trace_hardirqs_off+0xb8/0x310
[  241.609478]  ? smpboot_thread_fn+0x68b/0xa00
[  241.613907]  ? trace_hardirqs_on+0x310/0x310
[  241.618325]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.623863]  ? check_preemption_disabled+0x48/0x280
[  241.628920]  ? takeover_tasklets+0xa90/0xa90
[  241.633330]  run_ksoftirqd+0x5e/0x100
[  241.637134]  smpboot_thread_fn+0x68b/0xa00
[  241.641371]  ? sort_range+0x30/0x30
[  241.645001]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  241.650104]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.655641]  ? __kthread_parkme+0xfb/0x1a0
[  241.659891]  ? sort_range+0x30/0x30
[  241.663520]  kthread+0x35a/0x440
[  241.666902]  ? kthread_stop+0x900/0x900
[  241.670900]  ret_from_fork+0x3a/0x50
[  241.674636] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  241.674642] warn_alloc_show_mem: 1 callbacks suppressed
[  241.674648] Mem-Info:
[  241.681571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  241.686937] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  241.686937]  active_file:12 inactive_file:14 isolated_file:0
[  241.686937]  unevictable:0 dirty:0 writeback:0 unstable:0
[  241.686937]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  241.686937]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  241.686937]  free:13757 free_pcp:113 free_cma:0
[  241.689308] Call Trace:
[  241.698693] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  241.731743]  <IRQ>
[  241.734314] 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
[  241.762259]  dump_stack+0x244/0x39d
[  241.764383] lowmem_reserve[]: 0 2818 6321 6321
[  241.790522]  ? dump_stack_print_info.cold.1+0x20/0x20
[  241.794122] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  241.798904]  warn_alloc.cold.116+0xb7/0x1bd
[  241.804060] lowmem_reserve[]: 0 0 3503 3503
[  241.831573]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  241.835871] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  241.840194]  ? lock_downgrade+0x900/0x900
[  241.845009] lowmem_reserve[]: 0 0 0 0
[  241.874076]  ? trace_hardirqs_off+0xb8/0x310
[  241.878202] 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
[  241.882000]  ? trace_hardirqs_off+0xb8/0x310
[  241.886391] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  241.899922]  __alloc_pages_slowpath+0x2651/0x2de0
[  241.904302] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  241.919840]  ? warn_alloc+0x120/0x120
[  241.924641] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  241.939192]  ? warn_alloc+0x120/0x120
[  241.942972] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  241.951797]  ? __lock_acquire+0x62f/0x4c20
[  241.955572] 4236 total pagecache pages
[  241.964138]  ? warn_alloc+0x120/0x120
[  241.968361] 0 pages in swap cache
[  241.972235]  ? print_usage_bug+0xc0/0xc0
[  241.976014] Swap cache stats: add 0, delete 0, find 0/0
[  241.979459]  ? print_usage_bug+0xc0/0xc0
[  241.983498] Free swap  = 0kB
[  241.988852]  ? mark_held_locks+0x130/0x130
[  241.992899] Total swap = 0kB
[  241.995921]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.000129] 1965979 pages RAM
[  242.003136]  ? should_fail+0x22d/0xd01
[  242.003151]  ? zap_class+0x640/0x640
[  242.008668] 0 pages HighMem/MovableOnly
[  242.011767]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  242.015631] 342854 pages reserved
[  242.019335]  ? __lock_acquire+0x62f/0x4c20
[  242.023286] 0 pages cma reserved
[  242.028380]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  242.031890] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  242.036027]  ? should_fail+0x22d/0xd01
[  242.036066]  ? mark_held_locks+0x130/0x130
[  242.036083]  ? mark_held_locks+0x130/0x130
[  242.039522] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  242.044548]  ? lock_downgrade+0x900/0x900
[  242.051013] ksoftirqd/0 cpuset=/ mems_allowed=0
[  242.054898]  ? zap_class+0x640/0x640
[  242.054913]  ? zap_class+0x640/0x640
[  242.089854]  ? zap_class+0x640/0x640
[  242.093582]  ? do_raw_spin_unlock+0xa7/0x330
[  242.097990]  ? trace_hardirqs_on+0x310/0x310
[  242.102406]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.107956]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.113495]  ? check_preemption_disabled+0x48/0x280
[  242.118552]  ? __lock_is_held+0xb5/0x140
[  242.122621]  __alloc_pages_nodemask+0xad8/0xea0
[  242.127303]  ? zap_class+0x640/0x640
[  242.131024]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  242.136050]  ? find_held_lock+0x36/0x1c0
[  242.140122]  ? ____cache_alloc_node+0x1c7/0x1e0
[  242.144791]  ? lock_downgrade+0x900/0x900
[  242.148953]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.154502]  cache_grow_begin+0xa5/0x8c0
[  242.158560]  ? do_raw_spin_unlock+0xa7/0x330
[  242.162980]  fallback_alloc+0x204/0x2e0
[  242.166963]  ____cache_alloc_node+0x1c7/0x1e0
[  242.171466]  kmem_cache_alloc_node+0xe3/0x730
[  242.175963]  ? lockdep_hardirqs_on+0x296/0x5b0
[  242.180563]  __alloc_skb+0x119/0x770
[  242.184273]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  242.189639]  ? netdev_alloc_frag+0x1f0/0x1f0
[  242.194055]  ? vprintk_default+0x28/0x30
[  242.198115]  ? vprintk_func+0x85/0x181
[  242.202002]  ? printk+0xa7/0xcf
[  242.205281]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  242.210045]  new_skb+0x26/0x1c0
[  242.213327]  aoecmd_cfg+0x279/0x7f0
[  242.216958]  ? find_held_lock+0x36/0x1c0
[  242.221022]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  242.225349]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.230906]  ? __lock_is_held+0xb5/0x140
[  242.234985]  discover_timer+0x50/0x60
[  242.238785]  call_timer_fn+0x272/0x920
[  242.242674]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  242.247518]  ? process_timeout+0x40/0x40
[  242.251594]  ? mark_held_locks+0xc7/0x130
[  242.255742]  ? _raw_spin_unlock_irq+0x27/0x80
[  242.260236]  ? _raw_spin_unlock_irq+0x27/0x80
[  242.264728]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  242.269569]  ? lockdep_hardirqs_on+0x296/0x5b0
[  242.274153]  ? trace_hardirqs_on+0xbd/0x310
[  242.278475]  ? kasan_check_read+0x11/0x20
[  242.282624]  ? __run_timers+0x7da/0xc70
[  242.286600]  ? trace_hardirqs_off_caller+0x310/0x310
[  242.291712]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  242.296553]  __run_timers+0x7e5/0xc70
[  242.300362]  ? timer_fixup_init+0x70/0x70
[  242.304529]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  242.309552]  ? zap_class+0x640/0x640
[  242.313270]  ? print_usage_bug+0xc0/0xc0
[  242.317351]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  242.322554]  ? find_held_lock+0x36/0x1c0
[  242.326620]  ? zap_class+0x640/0x640
[  242.330340]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.335893]  ? check_preemption_disabled+0x48/0x280
[  242.340922]  ? __lock_is_held+0xb5/0x140
[  242.344985]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.350525]  ? check_preemption_disabled+0x48/0x280
[  242.355550]  run_timer_softirq+0x52/0xb0
[  242.359616]  ? rcu_read_lock_sched_held+0x14f/0x180
[  242.364638]  __do_softirq+0x308/0xb7e
[  242.368442]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  242.372951]  ? lock_downgrade+0x900/0x900
[  242.377104]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  242.382215]  ? pvclock_read_flags+0x160/0x160
[  242.386711]  ? lapic_next_event+0x5a/0x90
[  242.390861]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.396416]  ? kvm_clock_read+0x18/0x30
[  242.400394]  ? kvm_sched_clock_read+0x9/0x20
[  242.404808]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.410345]  ? check_preemption_disabled+0x48/0x280
[  242.415374]  irq_exit+0x17f/0x1c0
[  242.418834]  smp_apic_timer_interrupt+0x1cb/0x760
[  242.423678]  ? smp_call_function_single_interrupt+0x159/0x650
[  242.429563]  ? smp_call_function_single_interrupt+0x650/0x650
[  242.435674]  ? interrupt_entry+0xb5/0xc0
[  242.439742]  ? trace_hardirqs_off_caller+0xbb/0x310
[  242.444756]  ? trace_hardirqs_off_caller+0xbb/0x310
[  242.449860]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  242.454713]  ? trace_hardirqs_on_caller+0x310/0x310
[  242.459727]  ? trace_hardirqs_on_caller+0x310/0x310
[  242.464747]  ? task_prio+0x50/0x50
[  242.468290]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.473831]  ? check_preemption_disabled+0x48/0x280
[  242.478853]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  242.483716]  apic_timer_interrupt+0xf/0x20
[  242.487948]  </IRQ>
[  242.490187] RIP: 0010:dump_stack+0x358/0x39d
[  242.494601] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  242.513503] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  242.521217] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  242.528483] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  242.535752] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  242.543020] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  242.550286] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  242.557577]  ? dump_stack+0x34f/0x39d
[  242.561395]  ? dump_stack_print_info.cold.1+0x20/0x20
[  242.567052]  ? mark_held_locks+0x130/0x130
[  242.571291]  ? mark_held_locks+0x130/0x130
[  242.575537]  dump_header+0x27b/0xf72
[  242.579268]  ? pagefault_out_of_memory+0x197/0x197
[  242.584207]  ? __lock_acquire+0x62f/0x4c20
[  242.588447]  ? percpu_ref_get_many+0x240/0x240
[  242.593035]  ? print_usage_bug+0xc0/0xc0
[  242.597113]  ? zap_class+0x640/0x640
[  242.600834]  ? print_usage_bug+0xc0/0xc0
[  242.604903]  ? print_usage_bug+0xc0/0xc0
[  242.608970]  ? zap_class+0x640/0x640
[  242.612687]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.618231]  ? find_held_lock+0x36/0x1c0
[  242.622305]  ? mark_held_locks+0xc7/0x130
[  242.626460]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  242.631560]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  242.636664]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  242.641253]  ? trace_hardirqs_on+0xbd/0x310
[  242.645576]  ? kasan_check_read+0x11/0x20
[  242.649722]  ? ___ratelimit+0x3b4/0x672
[  242.653698]  ? trace_hardirqs_off_caller+0x310/0x310
[  242.658805]  ? trace_hardirqs_on+0x310/0x310
[  242.663219]  ? lock_downgrade+0x900/0x900
[  242.667379]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  242.672488]  ? ___ratelimit+0x3b9/0x672
[  242.676466]  ? idr_get_free+0xf70/0xf70
[  242.680440]  ? find_held_lock+0x36/0x1c0
[  242.684510]  oom_kill_process.cold.27+0x10/0x903
[  242.689266]  ? zap_class+0x640/0x640
[  242.692982]  ? check_preemption_disabled+0x48/0x280
[  242.698004]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  242.702933]  ? kasan_check_read+0x11/0x20
[  242.707079]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.712372]  ? oom_evaluate_task+0x540/0x540
[  242.716803]  ? find_held_lock+0x36/0x1c0
[  242.720882]  ? out_of_memory+0x974/0x1430
[  242.725037]  ? lock_downgrade+0x900/0x900
[  242.729186]  ? check_preemption_disabled+0x48/0x280
[  242.734209]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  242.739137]  ? kasan_check_read+0x11/0x20
[  242.743285]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.748563]  ? rcu_softirq_qs+0x20/0x20
[  242.752542]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.758080]  ? oom_evaluate_task+0x302/0x540
[  242.762509]  out_of_memory+0xa84/0x1430
[  242.766490]  ? oom_killer_disable+0x3a0/0x3a0
[  242.771002]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  242.775935]  ? __ww_mutex_check_waiters+0x160/0x160
[  242.780967]  __alloc_pages_slowpath+0x232c/0x2de0
[  242.785858]  ? warn_alloc+0x120/0x120
[  242.789665]  ? mark_held_locks+0x130/0x130
[  242.793912]  ? find_get_entry+0xaae/0x1120
[  242.798158]  ? filemap_map_pages+0x1a20/0x1a20
[  242.802745]  ? zap_class+0x640/0x640
[  242.806466]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.812009]  ? check_preemption_disabled+0x48/0x280
[  242.817026]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.822569]  ? should_fail+0x22d/0xd01
[  242.826466]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  242.831574]  ? zap_class+0x640/0x640
[  242.835311]  ? __lock_is_held+0xb5/0x140
[  242.839395]  ? mark_held_locks+0x130/0x130
[  242.843637]  ? lock_release+0xa00/0xa00
[  242.847610]  ? perf_trace_sched_process_exec+0x860/0x860
[  242.853065]  ? xa_load+0x2ba/0x460
[  242.856609]  ? lock_downgrade+0x900/0x900
[  242.860762]  ? __might_sleep+0x95/0x190
[  242.864741]  __alloc_pages_nodemask+0xad8/0xea0
[  242.869424]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  242.874441]  ? __page_cache_alloc+0x191/0x5c0
[  242.878953]  ? xa_load+0x2e1/0x460
[  242.882497]  ? xa_clear_mark+0x40/0x40
[  242.886394]  ? zap_class+0x640/0x640
[  242.890119]  ? zap_class+0x640/0x640
[  242.893844]  ? zap_class+0x640/0x640
[  242.897563]  ? __do_page_cache_readahead+0x663/0x810
[  242.902672]  ? find_held_lock+0x36/0x1c0
[  242.906752]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  242.912330]  alloc_pages_current+0x173/0x350
[  242.916745]  __page_cache_alloc+0x38c/0x5c0
[  242.921067]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  242.925993]  ? kasan_check_read+0x11/0x20
[  242.930143]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.935418]  ? generic_perform_write+0x6a0/0x6a0
[  242.940187]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.945726]  ? check_preemption_disabled+0x48/0x280
[  242.950790]  filemap_fault+0x1595/0x25f0
[  242.954862]  ? __lock_page_or_retry+0xa00/0xa00
[  242.959547]  ? mark_held_locks+0x130/0x130
[  242.963792]  ? filemap_map_pages+0xd6b/0x1a20
[  242.968303]  ? lock_downgrade+0x900/0x900
[  242.972453]  ? check_preemption_disabled+0x48/0x280
[  242.977471]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  242.982406]  ? kasan_check_read+0x11/0x20
[  242.986554]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.991830]  ? rcu_softirq_qs+0x20/0x20
[  242.995818]  ? filemap_map_pages+0xd92/0x1a20
[  243.000324]  ? find_get_entries_tag+0x1400/0x1400
[  243.005171]  ? debug_object_destroy+0x2b0/0x2b0
[  243.009842]  ? lock_pi_update_atomic+0x150/0x150
[  243.014609]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.020164]  ? lock_acquire+0x1ed/0x520
[  243.024136]  ? ext4_filemap_fault+0x7a/0xad
[  243.028466]  ? lock_release+0xa00/0xa00
[  243.032444]  ? perf_trace_sched_process_exec+0x860/0x860
[  243.037900]  ? print_usage_bug+0xc0/0xc0
[  243.041963]  ? print_usage_bug+0xc0/0xc0
[  243.046042]  ? down_read+0x8d/0x120
[  243.049668]  ? ext4_filemap_fault+0x7a/0xad
[  243.053995]  ? __down_interruptible+0x700/0x700
[  243.058672]  ext4_filemap_fault+0x82/0xad
[  243.062823]  __do_fault+0x100/0x6b0
[  243.066452]  ? find_held_lock+0x36/0x1c0
[  243.070516]  ? pmd_devmap_trans_unstable+0x220/0x220
[  243.075627]  ? mark_held_locks+0x130/0x130
[  243.079865]  ? mark_held_locks+0x130/0x130
[  243.084113]  ? _raw_spin_unlock_irq+0x27/0x80
[  243.088608]  ? _raw_spin_unlock_irq+0x27/0x80
[  243.093107]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  243.097696]  ? kasan_check_read+0x11/0x20
[  243.101848]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.107402]  __handle_mm_fault+0x3ea0/0x5be0
[  243.111820]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  243.116664]  ? finish_task_switch+0x1f4/0x910
[  243.121159]  ? finish_task_switch+0x1b4/0x910
[  243.125656]  ? __switch_to_asm+0x34/0x70
[  243.129722]  ? preempt_notifier_register+0x200/0x200
[  243.134825]  ? __switch_to_asm+0x34/0x70
[  243.138906]  ? __switch_to_asm+0x34/0x70
[  243.142987]  ? zap_class+0x640/0x640
[  243.146697]  ? zap_class+0x640/0x640
[  243.150411]  ? __x64_sys_futex+0x53e/0x6a0
[  243.154653]  ? find_held_lock+0x36/0x1c0
[  243.158723]  ? handle_mm_fault+0x42a/0xc70
[  243.162961]  ? lock_downgrade+0x900/0x900
[  243.167123]  ? check_preemption_disabled+0x48/0x280
[  243.172141]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  243.177070]  ? kasan_check_read+0x11/0x20
[  243.181218]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  243.186492]  ? rcu_softirq_qs+0x20/0x20
[  243.190465]  ? trace_hardirqs_off_caller+0x310/0x310
[  243.195570]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.201108]  ? check_preemption_disabled+0x48/0x280
[  243.206131]  handle_mm_fault+0x54f/0xc70
[  243.210210]  ? __handle_mm_fault+0x5be0/0x5be0
[  243.214800]  ? find_vma+0x34/0x190
[  243.218345]  __do_page_fault+0x5e8/0xe60
[  243.222407]  ? trace_hardirqs_off+0xb8/0x310
[  243.226829]  do_page_fault+0xf2/0x7e0
[  243.230632]  ? vmalloc_sync_all+0x30/0x30
[  243.234784]  ? error_entry+0x70/0xd0
[  243.238500]  ? trace_hardirqs_off_caller+0xbb/0x310
[  243.243516]  ? trace_hardirqs_on_caller+0xc0/0x310
[  243.248445]  ? syscall_return_slowpath+0x5e0/0x5e0
[  243.253392]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  243.258249]  ? trace_hardirqs_on_caller+0x310/0x310
[  243.263266]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  243.268720]  ? prepare_exit_to_usermode+0x291/0x3b0
[  243.273735]  ? page_fault+0x8/0x30
[  243.277280]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  243.282131]  ? page_fault+0x8/0x30
[  243.285675]  page_fault+0x1e/0x30
[  243.289128] RIP: 0033:0x40f9c0
[  243.292337] Code: Bad RIP value.
[  243.295701] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  243.301062] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  243.308341] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  243.315613] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  243.322885] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  243.330156] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  243.337448] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  243.337512] aoe: skb alloc failure
[  243.344205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  243.344213] Call Trace:
[  243.347981] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  243.357101]  dump_stack+0x244/0x39d
[  243.357121]  ? dump_stack_print_info.cold.1+0x20/0x20
[  243.359988] syz-fuzzer cpuset=/ mems_allowed=0
[  243.370218]  warn_alloc.cold.116+0xb7/0x1bd
[  243.388060]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  243.392919]  ? lock_downgrade+0x900/0x900
[  243.397074]  ? trace_hardirqs_off+0xb8/0x310
[  243.401488]  ? trace_hardirqs_off+0xb8/0x310
[  243.405912]  __alloc_pages_slowpath+0x2651/0x2de0
[  243.410787]  ? warn_alloc+0x120/0x120
[  243.414590]  ? print_usage_bug+0xc0/0xc0
[  243.418669]  ? warn_alloc+0x120/0x120
[  243.422508]  ? warn_alloc+0x120/0x120
[  243.426310]  ? print_usage_bug+0xc0/0xc0
[  243.430377]  ? print_usage_bug+0xc0/0xc0
[  243.434441]  ? __lock_acquire+0x62f/0x4c20
[  243.438680]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.444217]  ? should_fail+0x22d/0xd01
[  243.448113]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  243.453216]  ? __lock_acquire+0x62f/0x4c20
[  243.457457]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  243.462570]  ? __lock_acquire+0x62f/0x4c20
[  243.466801]  ? should_fail+0x22d/0xd01
[  243.470692]  ? find_held_lock+0x36/0x1c0
[  243.474760]  ? mark_held_locks+0x130/0x130
[  243.479000]  ? mark_held_locks+0x130/0x130
[  243.483237]  ? zap_class+0x640/0x640
[  243.486953]  ? zap_class+0x640/0x640
[  243.490669]  ? print_usage_bug+0xc0/0xc0
[  243.494732]  ? do_raw_spin_unlock+0xa7/0x330
[  243.499139]  ? zap_class+0x640/0x640
[  243.502851]  ? print_usage_bug+0xc0/0xc0
[  243.506927]  ? wq_watchdog_touch+0x9c/0xfe
[  243.511169]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.516709]  ? check_preemption_disabled+0x48/0x280
[  243.521736]  ? __lock_is_held+0xb5/0x140
[  243.525815]  __alloc_pages_nodemask+0xad8/0xea0
[  243.530485]  ? zap_class+0x640/0x640
[  243.534203]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  243.539236]  ? find_held_lock+0x36/0x1c0
[  243.543306]  ? ____cache_alloc_node+0x1c7/0x1e0
[  243.547976]  ? lock_downgrade+0x900/0x900
[  243.552133]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.557707]  cache_grow_begin+0xa5/0x8c0
[  243.561778]  ? do_raw_spin_unlock+0xa7/0x330
[  243.566193]  fallback_alloc+0x204/0x2e0
[  243.570173]  ____cache_alloc_node+0x1c7/0x1e0
[  243.574674]  kmem_cache_alloc_node+0xe3/0x730
[  243.579173]  ? ipv6_get_ifaddr+0x42e/0x620
[  243.583449]  __alloc_skb+0x119/0x770
[  243.587173]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  243.592452]  ? netdev_alloc_frag+0x1f0/0x1f0
[  243.596860]  ? lock_downgrade+0x900/0x900
[  243.601027]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.606567]  ? refcount_sub_and_test_checked+0x203/0x310
[  243.612022]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  243.617471]  ? addrconf_rs_timer+0x690/0x690
[  243.621906]  ndisc_alloc_skb+0x144/0x340
[  243.625972]  ndisc_send_rs+0x331/0x6e0
[  243.629863]  addrconf_rs_timer+0x314/0x690
[  243.634121]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.638366]  call_timer_fn+0x272/0x920
[  243.642252]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.646485]  ? process_timeout+0x40/0x40
[  243.650559]  ? __run_timers+0x7da/0xc70
[  243.654536]  ? _raw_spin_unlock_irq+0x27/0x80
[  243.659031]  ? _raw_spin_unlock_irq+0x27/0x80
[  243.663526]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.667765]  ? lockdep_hardirqs_on+0x296/0x5b0
[  243.672353]  ? trace_hardirqs_on+0xbd/0x310
[  243.676712]  ? kasan_check_read+0x11/0x20
[  243.680858]  ? __run_timers+0x7da/0xc70
[  243.684846]  ? trace_hardirqs_off_caller+0x310/0x310
[  243.689967]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.694211]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.698442]  __run_timers+0x7e5/0xc70
[  243.702258]  ? timer_fixup_init+0x70/0x70
[  243.706410]  ? _raw_spin_unlock_irq+0x27/0x80
[  243.710914]  ? _raw_spin_unlock_irq+0x27/0x80
[  243.715439]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  243.720028]  ? trace_hardirqs_on+0xbd/0x310
[  243.724361]  ? kasan_check_read+0x11/0x20
[  243.728510]  ? finish_task_switch+0x1f4/0x910
[  243.733009]  ? trace_hardirqs_off_caller+0x310/0x310
[  243.738110]  ? compat_start_thread+0x80/0x80
[  243.742541]  ? pvclock_read_flags+0x160/0x160
[  243.747031]  ? __switch_to_asm+0x34/0x70
[  243.751093]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.756635]  ? check_preemption_disabled+0x48/0x280
[  243.761659]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  243.767193]  ? rcu_pm_notify+0xc0/0xc0
[  243.771077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.776609]  ? check_preemption_disabled+0x48/0x280
[  243.781646]  run_timer_softirq+0x52/0xb0
[  243.785710]  ? rcu_read_lock_sched_held+0x14f/0x180
[  243.790746]  __do_softirq+0x308/0xb7e
[  243.794554]  ? trace_hardirqs_on_caller+0xc0/0x310
[  243.799490]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  243.804593]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  243.810046]  ? trace_hardirqs_on+0x310/0x310
[  243.814463]  ? schedule+0x108/0x460
[  243.818099]  ? trace_hardirqs_off+0xb8/0x310
[  243.822513]  ? smpboot_thread_fn+0x68b/0xa00
[  243.826926]  ? trace_hardirqs_on+0x310/0x310
[  243.831339]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.836894]  ? check_preemption_disabled+0x48/0x280
[  243.841923]  ? takeover_tasklets+0xa90/0xa90
[  243.846335]  run_ksoftirqd+0x5e/0x100
[  243.850137]  smpboot_thread_fn+0x68b/0xa00
[  243.854379]  ? sort_range+0x30/0x30
[  243.858032]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  243.863133]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.868675]  ? __kthread_parkme+0xfb/0x1a0
[  243.872920]  ? sort_range+0x30/0x30
[  243.876546]  kthread+0x35a/0x440
[  243.879929]  ? kthread_stop+0x900/0x900
[  243.883917]  ret_from_fork+0x3a/0x50
[  243.887648] warn_alloc_show_mem: 1 callbacks suppressed
[  243.887659] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  243.887661] Mem-Info:
[  243.887693] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  243.887693]  active_file:12 inactive_file:14 isolated_file:0
[  243.887693]  unevictable:0 dirty:0 writeback:0 unstable:0
[  243.887693]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  243.887693]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  243.887693]  free:13757 free_pcp:113 free_cma:0
[  243.893031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  243.899963] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  243.902365] Call Trace:
[  243.935401] 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
[  243.944748]  <IRQ>
[  243.972571] lowmem_reserve[]: 0 2818 6321 6321
[  243.975175]  dump_stack+0x244/0x39d
[  244.001255] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  244.003407]  ? dump_stack_print_info.cold.1+0x20/0x20
[  244.007959] lowmem_reserve[]: 0 0 3503 3503
[  244.011591]  warn_alloc.cold.116+0xb7/0x1bd
[  244.039087] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  244.044285]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  244.048594] lowmem_reserve[]: 0 0 0 0
[  244.052915]  ? lock_downgrade+0x900/0x900
[  244.081950] 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
[  244.086795]  ? trace_hardirqs_off+0xb8/0x310
[  244.090565] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  244.094711]  ? trace_hardirqs_off+0xb8/0x310
[  244.108205] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  244.112649]  __alloc_pages_slowpath+0x2651/0x2de0
[  244.128153] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  244.132567]  ? warn_alloc+0x120/0x120
[  244.147087] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  244.151920]  ? warn_alloc+0x120/0x120
[  244.160728] 4236 total pagecache pages
[  244.164534]  ? __bfs+0x321/0x780
[  244.173093] 0 pages in swap cache
[  244.176912]  ? print_usage_bug+0xc0/0xc0
[  244.180790] Swap cache stats: add 0, delete 0, find 0/0
[  244.184144]  ? lockdep_on+0x50/0x50
[  244.187590] Free swap  = 0kB
[  244.191651]  ? print_bfs_bug+0x80/0x80
[  244.196989] Total swap = 0kB
[  244.200618]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  244.203604] 1965979 pages RAM
[  244.207485]  ? should_fail+0x22d/0xd01
[  244.210475] 0 pages HighMem/MovableOnly
[  244.216007]  ? __bfs+0x321/0x780
[  244.219086] 342854 pages reserved
[  244.222974]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  244.226928] 0 pages cma reserved
[  244.230288]  ? __lock_acquire+0x62f/0x4c20
[  244.233805] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  244.238816]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  244.238837]  ? __lock_acquire+0x2aff/0x4c20
[  244.238854]  ? should_fail+0x22d/0xd01
[  244.242280] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  244.246461]  ? mark_held_locks+0x130/0x130
[  244.252927] ksoftirqd/0 cpuset=/ mems_allowed=0
[  244.258024]  ? mark_held_locks+0x130/0x130
[  244.289583]  ? kasan_check_read+0x11/0x20
[  244.293761]  ? __lock_acquire+0x2aff/0x4c20
[  244.298098]  ? zap_class+0x640/0x640
[  244.301833]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.307401]  ? check_preemption_disabled+0x48/0x280
[  244.312427]  ? __lock_is_held+0xb5/0x140
[  244.316496]  __alloc_pages_nodemask+0xad8/0xea0
[  244.321167]  ? zap_class+0x640/0x640
[  244.324906]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  244.329940]  ? find_held_lock+0x36/0x1c0
[  244.334012]  ? ____cache_alloc_node+0x1c7/0x1e0
[  244.338689]  ? lock_downgrade+0x900/0x900
[  244.342859]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.348422]  cache_grow_begin+0xa5/0x8c0
[  244.352483]  ? do_raw_spin_unlock+0xa7/0x330
[  244.356909]  fallback_alloc+0x204/0x2e0
[  244.360901]  ____cache_alloc_node+0x1c7/0x1e0
[  244.365410]  kmem_cache_alloc_node+0xe3/0x730
[  244.369907]  ? do_raw_spin_unlock+0xa7/0x330
[  244.374320]  ? do_raw_spin_trylock+0x270/0x270
[  244.378958]  __alloc_skb+0x119/0x770
[  244.382679]  ? netdev_alloc_frag+0x1f0/0x1f0
[  244.387087]  ? atomic_notifier_call_chain+0xc6/0x190
[  244.392191]  ? lock_downgrade+0x900/0x900
[  244.396351]  ? check_preemption_disabled+0x48/0x280
[  244.401426]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  244.406365]  ? kasan_check_read+0x11/0x20
[  244.410530]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.415801]  ? rcu_softirq_qs+0x20/0x20
[  244.419786]  ? kasan_check_read+0x11/0x20
[  244.423933]  ? do_raw_write_trylock+0x270/0x270
[  244.428612]  __neigh_notify+0x8c/0x160
[  244.432694]  ? neigh_connected_output+0x780/0x780
[  244.437537]  neigh_timer_handler+0x6cb/0xdf0
[  244.441949]  ? check_preemption_disabled+0x48/0x280
[  244.446970]  ? neigh_periodic_work+0xc60/0xc60
[  244.451733]  ? __lock_is_held+0xb5/0x140
[  244.455838]  call_timer_fn+0x272/0x920
[  244.459727]  ? neigh_periodic_work+0xc60/0xc60
[  244.464322]  ? process_timeout+0x40/0x40
[  244.468413]  ? mark_held_locks+0xc7/0x130
[  244.472566]  ? _raw_spin_unlock_irq+0x27/0x80
[  244.477062]  ? _raw_spin_unlock_irq+0x27/0x80
[  244.481569]  ? neigh_periodic_work+0xc60/0xc60
[  244.486178]  ? lockdep_hardirqs_on+0x296/0x5b0
[  244.490776]  ? trace_hardirqs_on+0xbd/0x310
[  244.495106]  ? kasan_check_read+0x11/0x20
[  244.499253]  ? __run_timers+0x7da/0xc70
[  244.503258]  ? trace_hardirqs_off_caller+0x310/0x310
[  244.508401]  ? neigh_periodic_work+0xc60/0xc60
[  244.512982]  __run_timers+0x7e5/0xc70
[  244.516809]  ? timer_fixup_init+0x70/0x70
[  244.520959]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  244.525993]  ? zap_class+0x640/0x640
[  244.529711]  ? print_usage_bug+0xc0/0xc0
[  244.533773]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  244.539002]  ? find_held_lock+0x36/0x1c0
[  244.543088]  ? zap_class+0x640/0x640
[  244.546817]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.552358]  ? check_preemption_disabled+0x48/0x280
[  244.557394]  ? __lock_is_held+0xb5/0x140
[  244.561457]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.567494]  ? check_preemption_disabled+0x48/0x280
[  244.572535]  run_timer_softirq+0x52/0xb0
[  244.576599]  ? rcu_read_lock_sched_held+0x14f/0x180
[  244.581620]  __do_softirq+0x308/0xb7e
[  244.585451]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  244.589958]  ? lock_downgrade+0x900/0x900
[  244.594130]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  244.599244]  ? pvclock_read_flags+0x160/0x160
[  244.603745]  ? lapic_next_event+0x5a/0x90
[  244.607901]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.613443]  ? kvm_clock_read+0x18/0x30
[  244.617432]  ? kvm_sched_clock_read+0x9/0x20
[  244.621846]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  244.627394]  ? check_preemption_disabled+0x48/0x280
[  244.632425]  irq_exit+0x17f/0x1c0
[  244.635904]  smp_apic_timer_interrupt+0x1cb/0x760
[  244.640745]  ? smp_call_function_single_interrupt+0x159/0x650
[  244.646648]  ? smp_call_function_single_interrupt+0x650/0x650
[  244.652562]  ? interrupt_entry+0xb5/0xc0
[  244.656640]  ? trace_hardirqs_off_caller+0xbb/0x310
[  244.661655]  ? trace_hardirqs_off_caller+0xbb/0x310
[  244.666672]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  244.671517]  ? trace_hardirqs_on_caller+0x310/0x310
[  244.676536]  ? trace_hardirqs_on_caller+0x310/0x310
[  244.681554]  ? task_prio+0x50/0x50
[  244.685112]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.690666]  ? check_preemption_disabled+0x48/0x280
[  244.695689]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  244.700558]  apic_timer_interrupt+0xf/0x20
[  244.704789]  </IRQ>
[  244.707030] RIP: 0010:dump_stack+0x358/0x39d
[  244.711457] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  244.730349] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  244.738059] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  244.745326] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  244.752589] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  244.759865] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  244.767138] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  244.774424]  ? dump_stack+0x34f/0x39d
[  244.778237]  ? dump_stack_print_info.cold.1+0x20/0x20
[  244.783433]  ? mark_held_locks+0x130/0x130
[  244.787667]  ? mark_held_locks+0x130/0x130
[  244.791913]  dump_header+0x27b/0xf72
[  244.795641]  ? pagefault_out_of_memory+0x197/0x197
[  244.800587]  ? __lock_acquire+0x62f/0x4c20
[  244.804827]  ? percpu_ref_get_many+0x240/0x240
[  244.809418]  ? print_usage_bug+0xc0/0xc0
[  244.813484]  ? zap_class+0x640/0x640
[  244.817214]  ? print_usage_bug+0xc0/0xc0
[  244.821274]  ? print_usage_bug+0xc0/0xc0
[  244.825336]  ? zap_class+0x640/0x640
[  244.829052]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.834602]  ? find_held_lock+0x36/0x1c0
[  244.838678]  ? mark_held_locks+0xc7/0x130
[  244.842834]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  244.847938]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  244.853056]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  244.857638]  ? trace_hardirqs_on+0xbd/0x310
[  244.862004]  ? kasan_check_read+0x11/0x20
[  244.866156]  ? ___ratelimit+0x3b4/0x672
[  244.870133]  ? trace_hardirqs_off_caller+0x310/0x310
[  244.875237]  ? trace_hardirqs_on+0x310/0x310
[  244.879649]  ? lock_downgrade+0x900/0x900
[  244.883802]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  244.888908]  ? ___ratelimit+0x3b9/0x672
[  244.892893]  ? idr_get_free+0xf70/0xf70
[  244.896871]  ? find_held_lock+0x36/0x1c0
[  244.900956]  oom_kill_process.cold.27+0x10/0x903
[  244.905715]  ? zap_class+0x640/0x640
[  244.909430]  ? check_preemption_disabled+0x48/0x280
[  244.914453]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  244.919399]  ? kasan_check_read+0x11/0x20
[  244.923545]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.928824]  ? oom_evaluate_task+0x540/0x540
[  244.933242]  ? find_held_lock+0x36/0x1c0
[  244.937311]  ? out_of_memory+0x974/0x1430
[  244.941463]  ? lock_downgrade+0x900/0x900
[  244.945619]  ? check_preemption_disabled+0x48/0x280
[  244.950637]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  244.955574]  ? kasan_check_read+0x11/0x20
[  244.959731]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.965038]  ? rcu_softirq_qs+0x20/0x20
[  244.969020]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  244.974585]  ? oom_evaluate_task+0x302/0x540
[  244.979023]  out_of_memory+0xa84/0x1430
[  244.983002]  ? oom_killer_disable+0x3a0/0x3a0
[  244.987521]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  244.992451]  ? __ww_mutex_check_waiters+0x160/0x160
[  244.997477]  __alloc_pages_slowpath+0x232c/0x2de0
[  245.002347]  ? warn_alloc+0x120/0x120
[  245.006146]  ? mark_held_locks+0x130/0x130
[  245.010396]  ? find_get_entry+0xaae/0x1120
[  245.014639]  ? filemap_map_pages+0x1a20/0x1a20
[  245.019240]  ? zap_class+0x640/0x640
[  245.022962]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.028500]  ? check_preemption_disabled+0x48/0x280
[  245.033515]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.039054]  ? should_fail+0x22d/0xd01
[  245.042946]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  245.048050]  ? zap_class+0x640/0x640
[  245.051792]  ? __lock_is_held+0xb5/0x140
[  245.055862]  ? mark_held_locks+0x130/0x130
[  245.060118]  ? lock_release+0xa00/0xa00
[  245.064095]  ? perf_trace_sched_process_exec+0x860/0x860
[  245.069547]  ? xa_load+0x2ba/0x460
[  245.073089]  ? lock_downgrade+0x900/0x900
[  245.077240]  ? __might_sleep+0x95/0x190
[  245.081222]  __alloc_pages_nodemask+0xad8/0xea0
[  245.085919]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  245.090938]  ? __page_cache_alloc+0x191/0x5c0
[  245.095444]  ? xa_load+0x2e1/0x460
[  245.099007]  ? xa_clear_mark+0x40/0x40
[  245.102900]  ? zap_class+0x640/0x640
[  245.106618]  ? zap_class+0x640/0x640
[  245.110332]  ? zap_class+0x640/0x640
[  245.114048]  ? __do_page_cache_readahead+0x663/0x810
[  245.119161]  ? find_held_lock+0x36/0x1c0
[  245.123228]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  245.128801]  alloc_pages_current+0x173/0x350
[  245.133232]  __page_cache_alloc+0x38c/0x5c0
[  245.137548]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  245.142472]  ? kasan_check_read+0x11/0x20
[  245.146620]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.151901]  ? generic_perform_write+0x6a0/0x6a0
[  245.156657]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.162212]  ? check_preemption_disabled+0x48/0x280
[  245.167240]  filemap_fault+0x1595/0x25f0
[  245.171318]  ? __lock_page_or_retry+0xa00/0xa00
[  245.175990]  ? mark_held_locks+0x130/0x130
[  245.180239]  ? filemap_map_pages+0xd6b/0x1a20
[  245.184748]  ? lock_downgrade+0x900/0x900
[  245.188906]  ? check_preemption_disabled+0x48/0x280
[  245.193929]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  245.198862]  ? kasan_check_read+0x11/0x20
[  245.203019]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.208334]  ? rcu_softirq_qs+0x20/0x20
[  245.212324]  ? filemap_map_pages+0xd92/0x1a20
[  245.216834]  ? find_get_entries_tag+0x1400/0x1400
[  245.221695]  ? debug_object_destroy+0x2b0/0x2b0
[  245.226377]  ? lock_pi_update_atomic+0x150/0x150
[  245.231165]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.236716]  ? lock_acquire+0x1ed/0x520
[  245.240688]  ? ext4_filemap_fault+0x7a/0xad
[  245.245013]  ? lock_release+0xa00/0xa00
[  245.248986]  ? perf_trace_sched_process_exec+0x860/0x860
[  245.254438]  ? print_usage_bug+0xc0/0xc0
[  245.258499]  ? print_usage_bug+0xc0/0xc0
[  245.262574]  ? down_read+0x8d/0x120
[  245.266198]  ? ext4_filemap_fault+0x7a/0xad
[  245.270524]  ? __down_interruptible+0x700/0x700
[  245.275237]  ext4_filemap_fault+0x82/0xad
[  245.279426]  __do_fault+0x100/0x6b0
[  245.283052]  ? find_held_lock+0x36/0x1c0
[  245.287118]  ? pmd_devmap_trans_unstable+0x220/0x220
[  245.292222]  ? mark_held_locks+0x130/0x130
[  245.296461]  ? mark_held_locks+0x130/0x130
[  245.300698]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.305190]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.309684]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  245.314266]  ? kasan_check_read+0x11/0x20
[  245.318418]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.323965]  __handle_mm_fault+0x3ea0/0x5be0
[  245.328380]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  245.333229]  ? finish_task_switch+0x1f4/0x910
[  245.337748]  ? finish_task_switch+0x1b4/0x910
[  245.342256]  ? __switch_to_asm+0x34/0x70
[  245.346339]  ? preempt_notifier_register+0x200/0x200
[  245.351443]  ? __switch_to_asm+0x34/0x70
[  245.355500]  ? __switch_to_asm+0x34/0x70
[  245.359577]  ? zap_class+0x640/0x640
[  245.363321]  ? zap_class+0x640/0x640
[  245.367034]  ? __x64_sys_futex+0x53e/0x6a0
[  245.371269]  ? find_held_lock+0x36/0x1c0
[  245.375341]  ? handle_mm_fault+0x42a/0xc70
[  245.379594]  ? lock_downgrade+0x900/0x900
[  245.383755]  ? check_preemption_disabled+0x48/0x280
[  245.388792]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  245.393723]  ? kasan_check_read+0x11/0x20
[  245.397880]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.403157]  ? rcu_softirq_qs+0x20/0x20
[  245.407132]  ? trace_hardirqs_off_caller+0x310/0x310
[  245.412242]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.417780]  ? check_preemption_disabled+0x48/0x280
[  245.422804]  handle_mm_fault+0x54f/0xc70
[  245.426870]  ? __handle_mm_fault+0x5be0/0x5be0
[  245.431468]  ? find_vma+0x34/0x190
[  245.435016]  __do_page_fault+0x5e8/0xe60
[  245.439075]  ? trace_hardirqs_off+0xb8/0x310
[  245.443494]  do_page_fault+0xf2/0x7e0
[  245.447295]  ? vmalloc_sync_all+0x30/0x30
[  245.451448]  ? error_entry+0x70/0xd0
[  245.455165]  ? trace_hardirqs_off_caller+0xbb/0x310
[  245.460209]  ? trace_hardirqs_on_caller+0xc0/0x310
[  245.465140]  ? syscall_return_slowpath+0x5e0/0x5e0
[  245.470067]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  245.474925]  ? trace_hardirqs_on_caller+0x310/0x310
[  245.479946]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  245.485405]  ? prepare_exit_to_usermode+0x291/0x3b0
[  245.490435]  ? page_fault+0x8/0x30
[  245.494007]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  245.498850]  ? page_fault+0x8/0x30
[  245.502406]  page_fault+0x1e/0x30
[  245.505857] RIP: 0033:0x40f9c0
[  245.509129] Code: Bad RIP value.
[  245.512517] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  245.517887] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  245.525159] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  245.532428] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  245.539692] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  245.546959] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  245.554252] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  245.554453] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  245.561108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  245.571314] syz-fuzzer cpuset=/ mems_allowed=0
[  245.580657] Call Trace:
[  245.587819]  dump_stack+0x244/0x39d
[  245.591453]  ? dump_stack_print_info.cold.1+0x20/0x20
[  245.596659]  warn_alloc.cold.116+0xb7/0x1bd
[  245.600985]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  245.605832]  ? lock_downgrade+0x900/0x900
[  245.609987]  ? trace_hardirqs_off+0xb8/0x310
[  245.614416]  ? trace_hardirqs_off+0xb8/0x310
[  245.618846]  __alloc_pages_slowpath+0x2651/0x2de0
[  245.623717]  ? warn_alloc+0x120/0x120
[  245.627516]  ? print_usage_bug+0xc0/0xc0
[  245.631577]  ? warn_alloc+0x120/0x120
[  245.635379]  ? warn_alloc+0x120/0x120
[  245.639178]  ? print_usage_bug+0xc0/0xc0
[  245.643243]  ? print_usage_bug+0xc0/0xc0
[  245.647306]  ? __lock_acquire+0x62f/0x4c20
[  245.651545]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.657088]  ? should_fail+0x22d/0xd01
[  245.660984]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  245.666092]  ? __lock_acquire+0x62f/0x4c20
[  245.670335]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  245.675446]  ? __lock_acquire+0x62f/0x4c20
[  245.679675]  ? should_fail+0x22d/0xd01
[  245.683560]  ? find_held_lock+0x36/0x1c0
[  245.687629]  ? mark_held_locks+0x130/0x130
[  245.691869]  ? mark_held_locks+0x130/0x130
[  245.696121]  ? zap_class+0x640/0x640
[  245.699846]  ? zap_class+0x640/0x640
[  245.703564]  ? print_usage_bug+0xc0/0xc0
[  245.707633]  ? do_raw_spin_unlock+0xa7/0x330
[  245.712057]  ? zap_class+0x640/0x640
[  245.715814]  ? print_usage_bug+0xc0/0xc0
[  245.719881]  ? wq_watchdog_touch+0x9c/0xfe
[  245.724134]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.729677]  ? check_preemption_disabled+0x48/0x280
[  245.734705]  ? __lock_is_held+0xb5/0x140
[  245.738773]  __alloc_pages_nodemask+0xad8/0xea0
[  245.743441]  ? zap_class+0x640/0x640
[  245.747163]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  245.752189]  ? find_held_lock+0x36/0x1c0
[  245.756261]  ? ____cache_alloc_node+0x1c7/0x1e0
[  245.760931]  ? lock_downgrade+0x900/0x900
[  245.765085]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.770646]  cache_grow_begin+0xa5/0x8c0
[  245.774707]  ? do_raw_spin_unlock+0xa7/0x330
[  245.779134]  fallback_alloc+0x204/0x2e0
[  245.783116]  ____cache_alloc_node+0x1c7/0x1e0
[  245.787617]  kmem_cache_alloc_node+0xe3/0x730
[  245.792110]  ? ipv6_get_ifaddr+0x42e/0x620
[  245.796356]  __alloc_skb+0x119/0x770
[  245.800067]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.805346]  ? netdev_alloc_frag+0x1f0/0x1f0
[  245.809758]  ? lock_downgrade+0x900/0x900
[  245.813927]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.819482]  ? refcount_sub_and_test_checked+0x203/0x310
[  245.824937]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  245.830393]  ? addrconf_rs_timer+0x690/0x690
[  245.834816]  ndisc_alloc_skb+0x144/0x340
[  245.838897]  ndisc_send_rs+0x331/0x6e0
[  245.842795]  addrconf_rs_timer+0x314/0x690
[  245.847035]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.851283]  call_timer_fn+0x272/0x920
[  245.855689]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.859942]  ? process_timeout+0x40/0x40
[  245.864010]  ? __run_timers+0x7da/0xc70
[  245.867990]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.872486]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.876979]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.881213]  ? lockdep_hardirqs_on+0x296/0x5b0
[  245.885799]  ? trace_hardirqs_on+0xbd/0x310
[  245.890123]  ? kasan_check_read+0x11/0x20
[  245.894272]  ? __run_timers+0x7da/0xc70
[  245.898247]  ? trace_hardirqs_off_caller+0x310/0x310
[  245.903369]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.907621]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.911857]  __run_timers+0x7e5/0xc70
[  245.915689]  ? timer_fixup_init+0x70/0x70
[  245.919849]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.924372]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.928870]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  245.933510]  ? trace_hardirqs_on+0xbd/0x310
[  245.937843]  ? kasan_check_read+0x11/0x20
[  245.942002]  ? finish_task_switch+0x1f4/0x910
[  245.946497]  ? trace_hardirqs_off_caller+0x310/0x310
[  245.951601]  ? compat_start_thread+0x80/0x80
[  245.956030]  ? pvclock_read_flags+0x160/0x160
[  245.960525]  ? __switch_to_asm+0x34/0x70
[  245.964587]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.970129]  ? check_preemption_disabled+0x48/0x280
[  245.975153]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  245.980702]  ? rcu_pm_notify+0xc0/0xc0
[  245.984592]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.990133]  ? check_preemption_disabled+0x48/0x280
[  245.995157]  run_timer_softirq+0x52/0xb0
[  245.999236]  ? rcu_read_lock_sched_held+0x14f/0x180
[  246.004253]  __do_softirq+0x308/0xb7e
[  246.008063]  ? trace_hardirqs_on_caller+0xc0/0x310
[  246.013000]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  246.018101]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  246.023551]  ? trace_hardirqs_on+0x310/0x310
[  246.027994]  ? schedule+0x108/0x460
[  246.031632]  ? trace_hardirqs_off+0xb8/0x310
[  246.036043]  ? smpboot_thread_fn+0x68b/0xa00
[  246.040451]  ? trace_hardirqs_on+0x310/0x310
[  246.044865]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.050419]  ? check_preemption_disabled+0x48/0x280
[  246.055441]  ? takeover_tasklets+0xa90/0xa90
[  246.059852]  run_ksoftirqd+0x5e/0x100
[  246.063667]  smpboot_thread_fn+0x68b/0xa00
[  246.067921]  ? sort_range+0x30/0x30
[  246.071550]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  246.076653]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.082190]  ? __kthread_parkme+0xfb/0x1a0
[  246.086447]  ? sort_range+0x30/0x30
[  246.090073]  kthread+0x35a/0x440
[  246.093440]  ? kthread_stop+0x900/0x900
[  246.097420]  ret_from_fork+0x3a/0x50
[  246.101154] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  246.101159] warn_alloc_show_mem: 1 callbacks suppressed
[  246.101166] Mem-Info:
[  246.108087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  246.113455] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  246.113455]  active_file:12 inactive_file:14 isolated_file:0
[  246.113455]  unevictable:0 dirty:0 writeback:0 unstable:0
[  246.113455]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  246.113455]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  246.113455]  free:13757 free_pcp:113 free_cma:0
[  246.115822] Call Trace:
[  246.125222] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  246.158244]  <IRQ>
[  246.160814] 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
[  246.188659]  dump_stack+0x244/0x39d
[  246.190781] lowmem_reserve[]: 0 2818 6321 6321
[  246.216896]  ? dump_stack_print_info.cold.1+0x20/0x20
[  246.220501] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  246.225087]  warn_alloc.cold.116+0xb7/0x1bd
[  246.230242] lowmem_reserve[]: 0 0 3503 3503
[  246.257743]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  246.262037] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  246.266352]  ? lock_downgrade+0x900/0x900
[  246.271165] lowmem_reserve[]: 0 0 0 0
[  246.300229]  ? trace_hardirqs_off+0xb8/0x310
[  246.304346] 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
[  246.308145]  ? trace_hardirqs_off+0xb8/0x310
[  246.312527] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  246.326045]  __alloc_pages_slowpath+0x2651/0x2de0
[  246.330427] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  246.345984]  ? warn_alloc+0x120/0x120
[  246.350780] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  246.365332]  ? __lock_acquire+0x62f/0x4c20
[  246.369115] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  246.377947]  ? warn_alloc+0x120/0x120
[  246.382156] 4236 total pagecache pages
[  246.390735]  ? warn_alloc+0x120/0x120
[  246.394533] 0 pages in swap cache
[  246.398411]  ? print_usage_bug+0xc0/0xc0
[  246.402205] Swap cache stats: add 0, delete 0, find 0/0
[  246.405647]  ? print_usage_bug+0xc0/0xc0
[  246.409682] Free swap  = 0kB
[  246.415037]  ? trace_hardirqs_off+0xb8/0x310
[  246.419075] Total swap = 0kB
[  246.422086]  ? trace_hardirqs_on+0x310/0x310
[  246.426489] 1965979 pages RAM
[  246.429519]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.434409] 0 pages HighMem/MovableOnly
[  246.434418] 342854 pages reserved
[  246.437520]  ? should_fail+0x22d/0xd01
[  246.443030] 0 pages cma reserved
[  246.446995]  ? run_posix_cpu_timers+0x6b0/0x23d0
[  246.450518] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  246.454305]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  246.457765] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  246.462427]  ? __lock_acquire+0x62f/0x4c20
[  246.468903] ksoftirqd/0 cpuset=/ mems_allowed=0
[  246.474000]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  246.498274]  ? __lock_acquire+0x62f/0x4c20
[  246.502506]  ? should_fail+0x22d/0xd01
[  246.506408]  ? debug_smp_processor_id+0x1c/0x20
[  246.511086]  ? mark_held_locks+0x130/0x130
[  246.515326]  ? mark_held_locks+0x130/0x130
[  246.519714]  ? nohz_balance_enter_idle+0x6c0/0x6c0
[  246.524647]  ? zap_class+0x640/0x640
[  246.528359]  ? print_usage_bug+0xc0/0xc0
[  246.532456]  ? __lock_acquire+0x62f/0x4c20
[  246.536693]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.542230]  ? check_preemption_disabled+0x48/0x280
[  246.547261]  ? __lock_is_held+0xb5/0x140
[  246.551330]  __alloc_pages_nodemask+0xad8/0xea0
[  246.555998]  ? zap_class+0x640/0x640
[  246.559715]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  246.565262]  ? find_held_lock+0x36/0x1c0
[  246.569337]  ? ____cache_alloc_node+0x1c7/0x1e0
[  246.574021]  ? lock_downgrade+0x900/0x900
[  246.578175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.583715]  cache_grow_begin+0xa5/0x8c0
[  246.587805]  ? do_raw_spin_unlock+0xa7/0x330
[  246.592224]  fallback_alloc+0x204/0x2e0
[  246.596205]  ____cache_alloc_node+0x1c7/0x1e0
[  246.600708]  kmem_cache_alloc_node+0xe3/0x730
[  246.605204]  ? ipv6_get_ifaddr+0x42e/0x620
[  246.609450]  __alloc_skb+0x119/0x770
[  246.613162]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  246.618457]  ? netdev_alloc_frag+0x1f0/0x1f0
[  246.622866]  ? lock_downgrade+0x900/0x900
[  246.627036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.632573]  ? refcount_sub_and_test_checked+0x203/0x310
[  246.638029]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  246.643479]  ? addrconf_rs_timer+0x690/0x690
[  246.647910]  ndisc_alloc_skb+0x144/0x340
[  246.651988]  ndisc_send_rs+0x331/0x6e0
[  246.655917]  addrconf_rs_timer+0x314/0x690
[  246.660205]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.664449]  call_timer_fn+0x272/0x920
[  246.668334]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.672573]  ? process_timeout+0x40/0x40
[  246.676632]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  246.682100]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  246.686862]  ? retint_kernel+0x2d/0x2d
[  246.690756]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.695008]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.699245]  __run_timers+0x7e5/0xc70
[  246.703082]  ? timer_fixup_init+0x70/0x70
[  246.707248]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  246.712293]  ? zap_class+0x640/0x640
[  246.716038]  ? print_usage_bug+0xc0/0xc0
[  246.720130]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  246.725325]  ? find_held_lock+0x36/0x1c0
[  246.729395]  ? zap_class+0x640/0x640
[  246.733114]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.738651]  ? check_preemption_disabled+0x48/0x280
[  246.743681]  ? __lock_is_held+0xb5/0x140
[  246.747761]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.753300]  ? check_preemption_disabled+0x48/0x280
[  246.758362]  run_timer_softirq+0x52/0xb0
[  246.762432]  ? rcu_read_lock_sched_held+0x14f/0x180
[  246.767454]  __do_softirq+0x308/0xb7e
[  246.771268]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  246.775761]  ? lock_downgrade+0x900/0x900
[  246.779914]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  246.785026]  ? pvclock_read_flags+0x160/0x160
[  246.789526]  ? lapic_next_event+0x5a/0x90
[  246.793676]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.799245]  ? kvm_clock_read+0x18/0x30
[  246.803241]  ? kvm_sched_clock_read+0x9/0x20
[  246.807653]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.813192]  ? check_preemption_disabled+0x48/0x280
[  246.818220]  irq_exit+0x17f/0x1c0
[  246.821676]  smp_apic_timer_interrupt+0x1cb/0x760
[  246.826521]  ? smp_call_function_single_interrupt+0x159/0x650
[  246.832439]  ? smp_call_function_single_interrupt+0x650/0x650
[  246.838322]  ? interrupt_entry+0xb5/0xc0
[  246.842383]  ? trace_hardirqs_off_caller+0xbb/0x310
[  246.847409]  ? trace_hardirqs_off_caller+0xbb/0x310
[  246.852428]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.857271]  ? trace_hardirqs_on_caller+0x310/0x310
[  246.862287]  ? trace_hardirqs_on_caller+0x310/0x310
[  246.867305]  ? task_prio+0x50/0x50
[  246.870846]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.876401]  ? check_preemption_disabled+0x48/0x280
[  246.881423]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.886278]  apic_timer_interrupt+0xf/0x20
[  246.890509]  </IRQ>
[  246.892750] RIP: 0010:dump_stack+0x358/0x39d
[  246.897161] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  246.916062] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  246.923785] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  246.931052] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  246.938318] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  246.945584] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  246.952851] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  246.960153]  ? dump_stack+0x34f/0x39d
[  246.963966]  ? dump_stack_print_info.cold.1+0x20/0x20
[  246.969162]  ? mark_held_locks+0x130/0x130
[  246.973404]  ? mark_held_locks+0x130/0x130
[  246.977644]  dump_header+0x27b/0xf72
[  246.981369]  ? pagefault_out_of_memory+0x197/0x197
[  246.986311]  ? __lock_acquire+0x62f/0x4c20
[  246.990548]  ? percpu_ref_get_many+0x240/0x240
[  246.995138]  ? print_usage_bug+0xc0/0xc0
[  246.999204]  ? zap_class+0x640/0x640
[  247.002921]  ? print_usage_bug+0xc0/0xc0
[  247.006979]  ? print_usage_bug+0xc0/0xc0
[  247.011044]  ? zap_class+0x640/0x640
[  247.014761]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.020302]  ? find_held_lock+0x36/0x1c0
[  247.024390]  ? mark_held_locks+0xc7/0x130
[  247.028550]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  247.033651]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  247.038785]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  247.043368]  ? trace_hardirqs_on+0xbd/0x310
[  247.047696]  ? kasan_check_read+0x11/0x20
[  247.051841]  ? ___ratelimit+0x3b4/0x672
[  247.055823]  ? trace_hardirqs_off_caller+0x310/0x310
[  247.060932]  ? trace_hardirqs_on+0x310/0x310
[  247.065345]  ? lock_downgrade+0x900/0x900
[  247.069502]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  247.074634]  ? ___ratelimit+0x3b9/0x672
[  247.078608]  ? idr_get_free+0xf70/0xf70
[  247.082578]  ? find_held_lock+0x36/0x1c0
[  247.086646]  oom_kill_process.cold.27+0x10/0x903
[  247.091406]  ? zap_class+0x640/0x640
[  247.095121]  ? check_preemption_disabled+0x48/0x280
[  247.100140]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  247.105072]  ? kasan_check_read+0x11/0x20
[  247.109247]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.114537]  ? oom_evaluate_task+0x540/0x540
[  247.118966]  ? find_held_lock+0x36/0x1c0
[  247.123035]  ? out_of_memory+0x974/0x1430
[  247.127186]  ? lock_downgrade+0x900/0x900
[  247.131332]  ? check_preemption_disabled+0x48/0x280
[  247.136353]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  247.141312]  ? kasan_check_read+0x11/0x20
[  247.145457]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.150730]  ? rcu_softirq_qs+0x20/0x20
[  247.154753]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.160288]  ? oom_evaluate_task+0x302/0x540
[  247.164703]  out_of_memory+0xa84/0x1430
[  247.168698]  ? oom_killer_disable+0x3a0/0x3a0
[  247.173196]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  247.178132]  ? __ww_mutex_check_waiters+0x160/0x160
[  247.183178]  __alloc_pages_slowpath+0x232c/0x2de0
[  247.188049]  ? warn_alloc+0x120/0x120
[  247.191850]  ? mark_held_locks+0x130/0x130
[  247.196099]  ? find_get_entry+0xaae/0x1120
[  247.200345]  ? filemap_map_pages+0x1a20/0x1a20
[  247.204950]  ? zap_class+0x640/0x640
[  247.208686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.214257]  ? check_preemption_disabled+0x48/0x280
[  247.219280]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.224816]  ? should_fail+0x22d/0xd01
[  247.228708]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.233813]  ? zap_class+0x640/0x640
[  247.237557]  ? __lock_is_held+0xb5/0x140
[  247.241628]  ? mark_held_locks+0x130/0x130
[  247.245867]  ? lock_release+0xa00/0xa00
[  247.249851]  ? perf_trace_sched_process_exec+0x860/0x860
[  247.255308]  ? xa_load+0x2ba/0x460
[  247.258854]  ? lock_downgrade+0x900/0x900
[  247.263024]  ? __might_sleep+0x95/0x190
[  247.267020]  __alloc_pages_nodemask+0xad8/0xea0
[  247.271695]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  247.276712]  ? __page_cache_alloc+0x191/0x5c0
[  247.281205]  ? xa_load+0x2e1/0x460
[  247.284747]  ? xa_clear_mark+0x40/0x40
[  247.288641]  ? zap_class+0x640/0x640
[  247.292363]  ? zap_class+0x640/0x640
[  247.296083]  ? zap_class+0x640/0x640
[  247.299795]  ? __do_page_cache_readahead+0x663/0x810
[  247.304910]  ? find_held_lock+0x36/0x1c0
[  247.308977]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  247.314519]  alloc_pages_current+0x173/0x350
[  247.318935]  __page_cache_alloc+0x38c/0x5c0
[  247.323257]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  247.328185]  ? kasan_check_read+0x11/0x20
[  247.332330]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.337612]  ? generic_perform_write+0x6a0/0x6a0
[  247.342419]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.347959]  ? check_preemption_disabled+0x48/0x280
[  247.352982]  filemap_fault+0x1595/0x25f0
[  247.357058]  ? __lock_page_or_retry+0xa00/0xa00
[  247.361729]  ? mark_held_locks+0x130/0x130
[  247.365974]  ? filemap_map_pages+0xd6b/0x1a20
[  247.370473]  ? lock_downgrade+0x900/0x900
[  247.374625]  ? check_preemption_disabled+0x48/0x280
[  247.379644]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  247.384580]  ? kasan_check_read+0x11/0x20
[  247.388731]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.394005]  ? rcu_softirq_qs+0x20/0x20
[  247.398002]  ? filemap_map_pages+0xd92/0x1a20
[  247.402508]  ? find_get_entries_tag+0x1400/0x1400
[  247.407390]  ? debug_object_destroy+0x2b0/0x2b0
[  247.412060]  ? lock_pi_update_atomic+0x150/0x150
[  247.416813]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.422365]  ? lock_acquire+0x1ed/0x520
[  247.426349]  ? ext4_filemap_fault+0x7a/0xad
[  247.430722]  ? lock_release+0xa00/0xa00
[  247.434694]  ? perf_trace_sched_process_exec+0x860/0x860
[  247.440145]  ? print_usage_bug+0xc0/0xc0
[  247.444207]  ? print_usage_bug+0xc0/0xc0
[  247.448278]  ? down_read+0x8d/0x120
[  247.451920]  ? ext4_filemap_fault+0x7a/0xad
[  247.456244]  ? __down_interruptible+0x700/0x700
[  247.460923]  ext4_filemap_fault+0x82/0xad
[  247.465074]  __do_fault+0x100/0x6b0
[  247.468700]  ? find_held_lock+0x36/0x1c0
[  247.472762]  ? pmd_devmap_trans_unstable+0x220/0x220
[  247.477902]  ? mark_held_locks+0x130/0x130
[  247.482183]  ? mark_held_locks+0x130/0x130
[  247.486420]  ? _raw_spin_unlock_irq+0x27/0x80
[  247.490914]  ? _raw_spin_unlock_irq+0x27/0x80
[  247.495416]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  247.500003]  ? kasan_check_read+0x11/0x20
[  247.504154]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.509712]  __handle_mm_fault+0x3ea0/0x5be0
[  247.514130]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  247.518976]  ? finish_task_switch+0x1f4/0x910
[  247.523473]  ? finish_task_switch+0x1b4/0x910
[  247.527968]  ? __switch_to_asm+0x34/0x70
[  247.532033]  ? preempt_notifier_register+0x200/0x200
[  247.537138]  ? __switch_to_asm+0x34/0x70
[  247.541200]  ? __switch_to_asm+0x34/0x70
[  247.545273]  ? zap_class+0x640/0x640
[  247.548986]  ? zap_class+0x640/0x640
[  247.552699]  ? __x64_sys_futex+0x53e/0x6a0
[  247.556937]  ? find_held_lock+0x36/0x1c0
[  247.561019]  ? handle_mm_fault+0x42a/0xc70
[  247.565256]  ? lock_downgrade+0x900/0x900
[  247.569436]  ? check_preemption_disabled+0x48/0x280
[  247.574495]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  247.579485]  ? kasan_check_read+0x11/0x20
[  247.583643]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.588920]  ? rcu_softirq_qs+0x20/0x20
[  247.592948]  ? trace_hardirqs_off_caller+0x310/0x310
[  247.598068]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.603607]  ? check_preemption_disabled+0x48/0x280
[  247.608629]  handle_mm_fault+0x54f/0xc70
[  247.612693]  ? __handle_mm_fault+0x5be0/0x5be0
[  247.617279]  ? find_vma+0x34/0x190
[  247.620827]  __do_page_fault+0x5e8/0xe60
[  247.624896]  ? trace_hardirqs_off+0xb8/0x310
[  247.629315]  do_page_fault+0xf2/0x7e0
[  247.633116]  ? vmalloc_sync_all+0x30/0x30
[  247.637269]  ? error_entry+0x70/0xd0
[  247.640987]  ? trace_hardirqs_off_caller+0xbb/0x310
[  247.645999]  ? trace_hardirqs_on_caller+0xc0/0x310
[  247.650958]  ? syscall_return_slowpath+0x5e0/0x5e0
[  247.655908]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  247.660761]  ? trace_hardirqs_on_caller+0x310/0x310
[  247.665772]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  247.671231]  ? prepare_exit_to_usermode+0x291/0x3b0
[  247.676250]  ? page_fault+0x8/0x30
[  247.679796]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  247.684644]  ? page_fault+0x8/0x30
[  247.688188]  page_fault+0x1e/0x30
[  247.691650] RIP: 0033:0x40f9c0
[  247.694846] Code: Bad RIP value.
[  247.698232] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  247.703610] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  247.710882] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  247.718151] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  247.725415] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  247.732692] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  247.739981] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  247.740047] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  247.746737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  247.746742] Call Trace:
[  247.746760]  dump_stack+0x244/0x39d
[  247.746781]  ? dump_stack_print_info.cold.1+0x20/0x20
[  247.753325] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  247.762613]  warn_alloc.cold.116+0xb7/0x1bd
[  247.765169] syz-fuzzer cpuset=/ mems_allowed=0
[  247.768789]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  247.797863]  ? lock_downgrade+0x900/0x900
[  247.802033]  ? trace_hardirqs_off+0xb8/0x310
[  247.806451]  ? trace_hardirqs_off+0xb8/0x310
[  247.810868]  __alloc_pages_slowpath+0x2651/0x2de0
[  247.815762]  ? warn_alloc+0x120/0x120
[  247.819565]  ? print_usage_bug+0xc0/0xc0
[  247.823628]  ? warn_alloc+0x120/0x120
[  247.827452]  ? warn_alloc+0x120/0x120
[  247.831269]  ? print_usage_bug+0xc0/0xc0
[  247.835331]  ? print_usage_bug+0xc0/0xc0
[  247.839392]  ? __lock_acquire+0x62f/0x4c20
[  247.843637]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.849177]  ? should_fail+0x22d/0xd01
[  247.853076]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.858182]  ? __lock_acquire+0x62f/0x4c20
[  247.862421]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.867523]  ? __lock_acquire+0x62f/0x4c20
[  247.871753]  ? should_fail+0x22d/0xd01
[  247.875641]  ? find_held_lock+0x36/0x1c0
[  247.879726]  ? mark_held_locks+0x130/0x130
[  247.883979]  ? mark_held_locks+0x130/0x130
[  247.888214]  ? zap_class+0x640/0x640
[  247.891960]  ? mark_held_locks+0xc7/0x130
[  247.896106]  ? do_raw_spin_unlock+0xa7/0x330
[  247.900533]  ? zap_class+0x640/0x640
[  247.904249]  ? print_usage_bug+0xc0/0xc0
[  247.908317]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.913891]  ? check_preemption_disabled+0x48/0x280
[  247.918937]  ? __lock_is_held+0xb5/0x140
[  247.923009]  __alloc_pages_nodemask+0xad8/0xea0
[  247.927697]  ? zap_class+0x640/0x640
[  247.931410]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  247.936450]  ? find_held_lock+0x36/0x1c0
[  247.940539]  ? ____cache_alloc_node+0x1c7/0x1e0
[  247.945210]  ? lock_downgrade+0x900/0x900
[  247.949365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.954925]  cache_grow_begin+0xa5/0x8c0
[  247.958988]  ? do_raw_spin_unlock+0xa7/0x330
[  247.963405]  fallback_alloc+0x204/0x2e0
[  247.967388]  ____cache_alloc_node+0x1c7/0x1e0
[  247.971910]  kmem_cache_alloc_node+0xe3/0x730
[  247.976407]  ? ipv6_get_ifaddr+0x42e/0x620
[  247.980657]  __alloc_skb+0x119/0x770
[  247.984382]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.989660]  ? netdev_alloc_frag+0x1f0/0x1f0
[  247.994068]  ? lock_downgrade+0x900/0x900
[  247.998225]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.003767]  ? refcount_sub_and_test_checked+0x203/0x310
[  248.009220]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  248.014684]  ? addrconf_rs_timer+0x690/0x690
[  248.019118]  ndisc_alloc_skb+0x144/0x340
[  248.023192]  ndisc_send_rs+0x331/0x6e0
[  248.027095]  addrconf_rs_timer+0x314/0x690
[  248.031336]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.035583]  call_timer_fn+0x272/0x920
[  248.039472]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.043706]  ? process_timeout+0x40/0x40
[  248.047774]  ? __run_timers+0x7da/0xc70
[  248.051780]  ? _raw_spin_unlock_irq+0x27/0x80
[  248.056275]  ? _raw_spin_unlock_irq+0x27/0x80
[  248.060769]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.065006]  ? lockdep_hardirqs_on+0x296/0x5b0
[  248.069590]  ? trace_hardirqs_on+0xbd/0x310
[  248.073917]  ? kasan_check_read+0x11/0x20
[  248.078065]  ? __run_timers+0x7da/0xc70
[  248.082040]  ? trace_hardirqs_off_caller+0x310/0x310
[  248.087151]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.091389]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.095621]  __run_timers+0x7e5/0xc70
[  248.099434]  ? timer_fixup_init+0x70/0x70
[  248.103581]  ? _raw_spin_unlock_irq+0x27/0x80
[  248.108073]  ? _raw_spin_unlock_irq+0x27/0x80
[  248.112571]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  248.117154]  ? trace_hardirqs_on+0xbd/0x310
[  248.121493]  ? kasan_check_read+0x11/0x20
[  248.125641]  ? finish_task_switch+0x1f4/0x910
[  248.130136]  ? trace_hardirqs_off_caller+0x310/0x310
[  248.135239]  ? compat_start_thread+0x80/0x80
[  248.139672]  ? pvclock_read_flags+0x160/0x160
[  248.144166]  ? __switch_to_asm+0x34/0x70
[  248.148240]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.153796]  ? check_preemption_disabled+0x48/0x280
[  248.158824]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  248.164361]  ? rcu_pm_notify+0xc0/0xc0
[  248.168249]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.173791]  ? check_preemption_disabled+0x48/0x280
[  248.178813]  run_timer_softirq+0x52/0xb0
[  248.182889]  ? rcu_read_lock_sched_held+0x14f/0x180
[  248.187913]  __do_softirq+0x308/0xb7e
[  248.191724]  ? trace_hardirqs_on_caller+0xc0/0x310
[  248.196657]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  248.201765]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  248.207224]  ? trace_hardirqs_on+0x310/0x310
[  248.211644]  ? schedule+0x108/0x460
[  248.215279]  ? trace_hardirqs_off+0xb8/0x310
[  248.219690]  ? smpboot_thread_fn+0x68b/0xa00
[  248.224101]  ? trace_hardirqs_on+0x310/0x310
[  248.228527]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.234065]  ? check_preemption_disabled+0x48/0x280
[  248.239081]  ? takeover_tasklets+0xa90/0xa90
[  248.243494]  run_ksoftirqd+0x5e/0x100
[  248.247311]  smpboot_thread_fn+0x68b/0xa00
[  248.251563]  ? sort_range+0x30/0x30
[  248.255192]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  248.260298]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.265834]  ? __kthread_parkme+0xfb/0x1a0
[  248.270072]  ? sort_range+0x30/0x30
[  248.273699]  kthread+0x35a/0x440
[  248.277073]  ? kthread_stop+0x900/0x900
[  248.281056]  ret_from_fork+0x3a/0x50
[  248.284794] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  248.284799] warn_alloc_show_mem: 1 callbacks suppressed
[  248.284806] Mem-Info:
[  248.291732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  248.297099] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  248.297099]  active_file:12 inactive_file:14 isolated_file:0
[  248.297099]  unevictable:0 dirty:0 writeback:0 unstable:0
[  248.297099]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  248.297099]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  248.297099]  free:13757 free_pcp:113 free_cma:0
[  248.299470] Call Trace:
[  248.308901] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  248.341910]  <IRQ>
[  248.344475] 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
[  248.372314]  dump_stack+0x244/0x39d
[  248.374453] lowmem_reserve[]: 0 2818 6321 6321
[  248.400587]  ? dump_stack_print_info.cold.1+0x20/0x20
[  248.404192] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  248.408773]  warn_alloc.cold.116+0xb7/0x1bd
[  248.413931] lowmem_reserve[]: 0 0 3503 3503
[  248.441657]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  248.445967] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  248.450282]  ? lock_downgrade+0x900/0x900
[  248.455100] lowmem_reserve[]: 0 0 0 0
[  248.484159]  ? trace_hardirqs_off+0xb8/0x310
[  248.488275] 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
[  248.492069]  ? trace_hardirqs_off+0xb8/0x310
[  248.496454] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  248.509983]  __alloc_pages_slowpath+0x2651/0x2de0
[  248.514363] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  248.529948]  ? warn_alloc+0x120/0x120
[  248.534774] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  248.549326]  ? print_usage_bug+0xc0/0xc0
[  248.553106] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  248.562447]  ? warn_alloc+0x120/0x120
[  248.566524] 4236 total pagecache pages
[  248.575124]  ? warn_alloc+0x120/0x120
[  248.578914] 0 pages in swap cache
[  248.582823]  ? print_usage_bug+0xc0/0xc0
[  248.586598] Swap cache stats: add 0, delete 0, find 0/0
[  248.590039]  ? print_usage_bug+0xc0/0xc0
[  248.594079] Free swap  = 0kB
[  248.599442]  ? __lock_acquire+0x62f/0x4c20
[  248.603493] Total swap = 0kB
[  248.606507]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.610713] 1965979 pages RAM
[  248.613726]  ? should_fail+0x22d/0xd01
[  248.619236] 0 pages HighMem/MovableOnly
[  248.622333]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  248.626198] 342854 pages reserved
[  248.630167]  ? __lock_acquire+0x62f/0x4c20
[  248.635248] 0 pages cma reserved
[  248.638696]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  248.642979] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  248.646260]  ? __lock_acquire+0x62f/0x4c20
[  248.646273]  ? should_fail+0x22d/0xd01
[  248.646286]  ? find_held_lock+0x36/0x1c0
[  248.646307]  ? mark_held_locks+0x130/0x130
[  248.651443] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  248.657934]  ? mark_held_locks+0x130/0x130
[  248.662144] ksoftirqd/0 cpuset=/ mems_allowed=0
[  248.666024]  ? zap_class+0x640/0x640
[  248.697145]  ? zap_class+0x640/0x640
[  248.700864]  ? print_usage_bug+0xc0/0xc0
[  248.704938]  ? do_raw_spin_unlock+0xa7/0x330
[  248.709345]  ? zap_class+0x640/0x640
[  248.713057]  ? print_usage_bug+0xc0/0xc0
[  248.717123]  ? wq_watchdog_touch+0x9c/0xfe
[  248.721364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.726919]  ? check_preemption_disabled+0x48/0x280
[  248.731945]  ? __lock_is_held+0xb5/0x140
[  248.736018]  __alloc_pages_nodemask+0xad8/0xea0
[  248.740710]  ? zap_class+0x640/0x640
[  248.744606]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  248.749639]  ? find_held_lock+0x36/0x1c0
[  248.753735]  ? ____cache_alloc_node+0x1c7/0x1e0
[  248.758434]  ? lock_downgrade+0x900/0x900
[  248.762591]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.768132]  cache_grow_begin+0xa5/0x8c0
[  248.772197]  ? do_raw_spin_unlock+0xa7/0x330
[  248.776625]  fallback_alloc+0x204/0x2e0
[  248.780609]  ____cache_alloc_node+0x1c7/0x1e0
[  248.785109]  kmem_cache_alloc_node+0xe3/0x730
[  248.789606]  ? ipv6_get_ifaddr+0x42e/0x620
[  248.793871]  __alloc_skb+0x119/0x770
[  248.797593]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.802885]  ? netdev_alloc_frag+0x1f0/0x1f0
[  248.807303]  ? lock_downgrade+0x900/0x900
[  248.811463]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.816999]  ? refcount_sub_and_test_checked+0x203/0x310
[  248.822456]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  248.827917]  ? addrconf_rs_timer+0x690/0x690
[  248.832339]  ndisc_alloc_skb+0x144/0x340
[  248.836423]  ndisc_send_rs+0x331/0x6e0
[  248.840329]  addrconf_rs_timer+0x314/0x690
[  248.844582]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.848855]  call_timer_fn+0x272/0x920
[  248.852762]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.856995]  ? process_timeout+0x40/0x40
[  248.861066]  ? mark_held_locks+0xc7/0x130
[  248.865216]  ? _raw_spin_unlock_irq+0x27/0x80
[  248.869709]  ? _raw_spin_unlock_irq+0x27/0x80
[  248.874203]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.878436]  ? lockdep_hardirqs_on+0x296/0x5b0
[  248.883022]  ? trace_hardirqs_on+0xbd/0x310
[  248.887342]  ? kasan_check_read+0x11/0x20
[  248.891485]  ? __run_timers+0x7da/0xc70
[  248.895477]  ? trace_hardirqs_off_caller+0x310/0x310
[  248.900588]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.904833]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.909069]  __run_timers+0x7e5/0xc70
[  248.912886]  ? timer_fixup_init+0x70/0x70
[  248.917037]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  248.922055]  ? zap_class+0x640/0x640
[  248.925772]  ? print_usage_bug+0xc0/0xc0
[  248.929851]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  248.935074]  ? find_held_lock+0x36/0x1c0
[  248.939142]  ? zap_class+0x640/0x640
[  248.942864]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.948418]  ? check_preemption_disabled+0x48/0x280
[  248.953448]  ? __lock_is_held+0xb5/0x140
[  248.957513]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.963051]  ? check_preemption_disabled+0x48/0x280
[  248.968071]  run_timer_softirq+0x52/0xb0
[  248.972134]  ? rcu_read_lock_sched_held+0x14f/0x180
[  248.977186]  __do_softirq+0x308/0xb7e
[  248.980991]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  248.985486]  ? lock_downgrade+0x900/0x900
[  248.989635]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  248.994749]  ? pvclock_read_flags+0x160/0x160
[  248.999248]  ? lapic_next_event+0x5a/0x90
[  249.003402]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.008959]  ? kvm_clock_read+0x18/0x30
[  249.012931]  ? kvm_sched_clock_read+0x9/0x20
[  249.017360]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.022908]  ? check_preemption_disabled+0x48/0x280
[  249.027952]  irq_exit+0x17f/0x1c0
[  249.031410]  smp_apic_timer_interrupt+0x1cb/0x760
[  249.036253]  ? smp_call_function_single_interrupt+0x159/0x650
[  249.042138]  ? smp_call_function_single_interrupt+0x650/0x650
[  249.048023]  ? interrupt_entry+0xb5/0xc0
[  249.052089]  ? trace_hardirqs_off_caller+0xbb/0x310
[  249.057106]  ? trace_hardirqs_off_caller+0xbb/0x310
[  249.062126]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.066971]  ? trace_hardirqs_on_caller+0x310/0x310
[  249.071994]  ? trace_hardirqs_on_caller+0x310/0x310
[  249.077010]  ? task_prio+0x50/0x50
[  249.080549]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.086086]  ? check_preemption_disabled+0x48/0x280
[  249.091110]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.095959]  apic_timer_interrupt+0xf/0x20
[  249.100188]  </IRQ>
[  249.102446] RIP: 0010:dump_stack+0x358/0x39d
[  249.106856] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  249.125767] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  249.133472] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  249.140740] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  249.148010] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  249.155295] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  249.162572] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  249.169853]  ? dump_stack+0x34f/0x39d
[  249.173685]  ? dump_stack_print_info.cold.1+0x20/0x20
[  249.178902]  ? mark_held_locks+0x130/0x130
[  249.183137]  ? mark_held_locks+0x130/0x130
[  249.187374]  dump_header+0x27b/0xf72
[  249.191105]  ? pagefault_out_of_memory+0x197/0x197
[  249.196042]  ? __lock_acquire+0x62f/0x4c20
[  249.200281]  ? percpu_ref_get_many+0x240/0x240
[  249.204871]  ? print_usage_bug+0xc0/0xc0
[  249.208946]  ? zap_class+0x640/0x640
[  249.212665]  ? print_usage_bug+0xc0/0xc0
[  249.216725]  ? print_usage_bug+0xc0/0xc0
[  249.220788]  ? zap_class+0x640/0x640
[  249.224510]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.230052]  ? find_held_lock+0x36/0x1c0
[  249.234124]  ? mark_held_locks+0xc7/0x130
[  249.238271]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  249.243374]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  249.248486]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  249.253071]  ? trace_hardirqs_on+0xbd/0x310
[  249.257397]  ? kasan_check_read+0x11/0x20
[  249.261541]  ? ___ratelimit+0x3b4/0x672
[  249.265518]  ? trace_hardirqs_off_caller+0x310/0x310
[  249.270625]  ? trace_hardirqs_on+0x310/0x310
[  249.275032]  ? lock_downgrade+0x900/0x900
[  249.279187]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  249.284288]  ? ___ratelimit+0x3b9/0x672
[  249.288264]  ? idr_get_free+0xf70/0xf70
[  249.292237]  ? find_held_lock+0x36/0x1c0
[  249.296309]  oom_kill_process.cold.27+0x10/0x903
[  249.301065]  ? zap_class+0x640/0x640
[  249.304789]  ? check_preemption_disabled+0x48/0x280
[  249.309823]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  249.314749]  ? kasan_check_read+0x11/0x20
[  249.318916]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.324195]  ? oom_evaluate_task+0x540/0x540
[  249.328603]  ? find_held_lock+0x36/0x1c0
[  249.332670]  ? out_of_memory+0x974/0x1430
[  249.336817]  ? lock_downgrade+0x900/0x900
[  249.340976]  ? check_preemption_disabled+0x48/0x280
[  249.346023]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  249.350952]  ? kasan_check_read+0x11/0x20
[  249.355102]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.360377]  ? rcu_softirq_qs+0x20/0x20
[  249.364376]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.369935]  ? oom_evaluate_task+0x302/0x540
[  249.374359]  out_of_memory+0xa84/0x1430
[  249.378347]  ? oom_killer_disable+0x3a0/0x3a0
[  249.382843]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  249.387782]  ? __ww_mutex_check_waiters+0x160/0x160
[  249.392812]  __alloc_pages_slowpath+0x232c/0x2de0
[  249.397684]  ? warn_alloc+0x120/0x120
[  249.401482]  ? mark_held_locks+0x130/0x130
[  249.405721]  ? find_get_entry+0xaae/0x1120
[  249.409962]  ? filemap_map_pages+0x1a20/0x1a20
[  249.414550]  ? zap_class+0x640/0x640
[  249.418271]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.423824]  ? check_preemption_disabled+0x48/0x280
[  249.428854]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.434417]  ? should_fail+0x22d/0xd01
[  249.438326]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  249.443446]  ? zap_class+0x640/0x640
[  249.447182]  ? __lock_is_held+0xb5/0x140
[  249.451247]  ? mark_held_locks+0x130/0x130
[  249.455480]  ? lock_release+0xa00/0xa00
[  249.459454]  ? perf_trace_sched_process_exec+0x860/0x860
[  249.464937]  ? xa_load+0x2ba/0x460
[  249.468480]  ? lock_downgrade+0x900/0x900
[  249.472635]  ? __might_sleep+0x95/0x190
[  249.476611]  __alloc_pages_nodemask+0xad8/0xea0
[  249.481303]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  249.486320]  ? __page_cache_alloc+0x191/0x5c0
[  249.490817]  ? xa_load+0x2e1/0x460
[  249.494360]  ? xa_clear_mark+0x40/0x40
[  249.498250]  ? zap_class+0x640/0x640
[  249.501971]  ? zap_class+0x640/0x640
[  249.505685]  ? zap_class+0x640/0x640
[  249.509416]  ? __do_page_cache_readahead+0x663/0x810
[  249.514521]  ? find_held_lock+0x36/0x1c0
[  249.518583]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  249.524447]  alloc_pages_current+0x173/0x350
[  249.528884]  __page_cache_alloc+0x38c/0x5c0
[  249.533204]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  249.538130]  ? kasan_check_read+0x11/0x20
[  249.542275]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.547571]  ? generic_perform_write+0x6a0/0x6a0
[  249.552330]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.557894]  ? check_preemption_disabled+0x48/0x280
[  249.562933]  filemap_fault+0x1595/0x25f0
[  249.567004]  ? __lock_page_or_retry+0xa00/0xa00
[  249.571678]  ? mark_held_locks+0x130/0x130
[  249.575925]  ? filemap_map_pages+0xd6b/0x1a20
[  249.580423]  ? lock_downgrade+0x900/0x900
[  249.584572]  ? check_preemption_disabled+0x48/0x280
[  249.589590]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  249.594520]  ? kasan_check_read+0x11/0x20
[  249.598666]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.603942]  ? rcu_softirq_qs+0x20/0x20
[  249.607930]  ? filemap_map_pages+0xd92/0x1a20
[  249.612445]  ? find_get_entries_tag+0x1400/0x1400
[  249.617292]  ? debug_object_destroy+0x2b0/0x2b0
[  249.621990]  ? lock_pi_update_atomic+0x150/0x150
[  249.626758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.632338]  ? lock_acquire+0x1ed/0x520
[  249.636314]  ? ext4_filemap_fault+0x7a/0xad
[  249.640641]  ? lock_release+0xa00/0xa00
[  249.644616]  ? perf_trace_sched_process_exec+0x860/0x860
[  249.650065]  ? print_usage_bug+0xc0/0xc0
[  249.654128]  ? print_usage_bug+0xc0/0xc0
[  249.658199]  ? down_read+0x8d/0x120
[  249.661825]  ? ext4_filemap_fault+0x7a/0xad
[  249.666150]  ? __down_interruptible+0x700/0x700
[  249.670830]  ext4_filemap_fault+0x82/0xad
[  249.674981]  __do_fault+0x100/0x6b0
[  249.678606]  ? find_held_lock+0x36/0x1c0
[  249.682672]  ? pmd_devmap_trans_unstable+0x220/0x220
[  249.687799]  ? mark_held_locks+0x130/0x130
[  249.692035]  ? mark_held_locks+0x130/0x130
[  249.696265]  ? _raw_spin_unlock_irq+0x27/0x80
[  249.700757]  ? _raw_spin_unlock_irq+0x27/0x80
[  249.705249]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  249.709835]  ? kasan_check_read+0x11/0x20
[  249.714008]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.719555]  __handle_mm_fault+0x3ea0/0x5be0
[  249.723972]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  249.728813]  ? finish_task_switch+0x1f4/0x910
[  249.733324]  ? finish_task_switch+0x1b4/0x910
[  249.737829]  ? __switch_to_asm+0x34/0x70
[  249.741904]  ? preempt_notifier_register+0x200/0x200
[  249.747003]  ? __switch_to_asm+0x34/0x70
[  249.751084]  ? __switch_to_asm+0x34/0x70
[  249.755155]  ? zap_class+0x640/0x640
[  249.758907]  ? zap_class+0x640/0x640
[  249.762618]  ? __x64_sys_futex+0x53e/0x6a0
[  249.766859]  ? find_held_lock+0x36/0x1c0
[  249.770948]  ? handle_mm_fault+0x42a/0xc70
[  249.775183]  ? lock_downgrade+0x900/0x900
[  249.779327]  ? check_preemption_disabled+0x48/0x280
[  249.784358]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  249.789289]  ? kasan_check_read+0x11/0x20
[  249.793437]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.798709]  ? rcu_softirq_qs+0x20/0x20
[  249.802694]  ? trace_hardirqs_off_caller+0x310/0x310
[  249.807796]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.813332]  ? check_preemption_disabled+0x48/0x280
[  249.818352]  handle_mm_fault+0x54f/0xc70
[  249.822434]  ? __handle_mm_fault+0x5be0/0x5be0
[  249.827024]  ? find_vma+0x34/0x190
[  249.830603]  __do_page_fault+0x5e8/0xe60
[  249.834663]  ? trace_hardirqs_off+0xb8/0x310
[  249.839081]  do_page_fault+0xf2/0x7e0
[  249.842896]  ? vmalloc_sync_all+0x30/0x30
[  249.847044]  ? error_entry+0x70/0xd0
[  249.850760]  ? trace_hardirqs_off_caller+0xbb/0x310
[  249.855774]  ? trace_hardirqs_on_caller+0xc0/0x310
[  249.860700]  ? syscall_return_slowpath+0x5e0/0x5e0
[  249.865645]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.870492]  ? trace_hardirqs_on_caller+0x310/0x310
[  249.875508]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  249.880961]  ? prepare_exit_to_usermode+0x291/0x3b0
[  249.885975]  ? page_fault+0x8/0x30
[  249.889515]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.894369]  ? page_fault+0x8/0x30
[  249.897931]  page_fault+0x1e/0x30
[  249.901379] RIP: 0033:0x40f9c0
[  249.904592] Code: Bad RIP value.
[  249.907952] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  249.913331] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  249.920609] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  249.927886] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  249.935156] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  249.942428] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  249.949756] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  249.949858] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  249.956525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  249.956530] Call Trace:
[  249.956550]  dump_stack+0x244/0x39d
[  249.956572]  ? dump_stack_print_info.cold.1+0x20/0x20
[  249.963101] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  249.972396]  warn_alloc.cold.116+0xb7/0x1bd
[  249.974955] syz-fuzzer cpuset=/ mems_allowed=0
[  249.978572]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  250.007674]  ? lock_downgrade+0x900/0x900
[  250.011834]  ? trace_hardirqs_off+0xb8/0x310
[  250.016261]  ? trace_hardirqs_off+0xb8/0x310
[  250.020723]  __alloc_pages_slowpath+0x2651/0x2de0
[  250.025598]  ? warn_alloc+0x120/0x120
[  250.029400]  ? print_usage_bug+0xc0/0xc0
[  250.033461]  ? warn_alloc+0x120/0x120
[  250.037267]  ? warn_alloc+0x120/0x120
[  250.041068]  ? print_usage_bug+0xc0/0xc0
[  250.045138]  ? print_usage_bug+0xc0/0xc0
[  250.049201]  ? __lock_acquire+0x62f/0x4c20
[  250.053447]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.058984]  ? should_fail+0x22d/0xd01
[  250.062873]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  250.067988]  ? __lock_acquire+0x62f/0x4c20
[  250.072230]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  250.077345]  ? __lock_acquire+0x62f/0x4c20
[  250.081584]  ? should_fail+0x22d/0xd01
[  250.085471]  ? find_held_lock+0x36/0x1c0
[  250.089545]  ? mark_held_locks+0x130/0x130
[  250.093782]  ? mark_held_locks+0x130/0x130
[  250.098018]  ? zap_class+0x640/0x640
[  250.101734]  ? zap_class+0x640/0x640
[  250.105451]  ? print_usage_bug+0xc0/0xc0
[  250.109542]  ? do_raw_spin_unlock+0xa7/0x330
[  250.113977]  ? zap_class+0x640/0x640
[  250.117688]  ? print_usage_bug+0xc0/0xc0
[  250.121745]  ? wq_watchdog_touch+0x9c/0xfe
[  250.125987]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.131525]  ? check_preemption_disabled+0x48/0x280
[  250.136549]  ? __lock_is_held+0xb5/0x140
[  250.140617]  __alloc_pages_nodemask+0xad8/0xea0
[  250.145284]  ? zap_class+0x640/0x640
[  250.149018]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  250.154044]  ? find_held_lock+0x36/0x1c0
[  250.158113]  ? ____cache_alloc_node+0x1c7/0x1e0
[  250.162783]  ? lock_downgrade+0x900/0x900
[  250.166942]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.172486]  cache_grow_begin+0xa5/0x8c0
[  250.176544]  ? do_raw_spin_unlock+0xa7/0x330
[  250.180960]  fallback_alloc+0x204/0x2e0
[  250.184939]  ____cache_alloc_node+0x1c7/0x1e0
[  250.189445]  kmem_cache_alloc_node+0xe3/0x730
[  250.193940]  ? ipv6_get_ifaddr+0x42e/0x620
[  250.198184]  __alloc_skb+0x119/0x770
[  250.201922]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.207201]  ? netdev_alloc_frag+0x1f0/0x1f0
[  250.211631]  ? lock_downgrade+0x900/0x900
[  250.215781]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.221335]  ? refcount_sub_and_test_checked+0x203/0x310
[  250.226787]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  250.232264]  ? addrconf_rs_timer+0x690/0x690
[  250.236683]  ndisc_alloc_skb+0x144/0x340
[  250.240764]  ndisc_send_rs+0x331/0x6e0
[  250.244660]  addrconf_rs_timer+0x314/0x690
[  250.248910]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.253175]  call_timer_fn+0x272/0x920
[  250.257093]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.261323]  ? process_timeout+0x40/0x40
[  250.265391]  ? __run_timers+0x7da/0xc70
[  250.269372]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.273865]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.278399]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.282652]  ? lockdep_hardirqs_on+0x296/0x5b0
[  250.287251]  ? trace_hardirqs_on+0xbd/0x310
[  250.291571]  ? kasan_check_read+0x11/0x20
[  250.295730]  ? __run_timers+0x7da/0xc70
[  250.299704]  ? trace_hardirqs_off_caller+0x310/0x310
[  250.304810]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.309044]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.313311]  __run_timers+0x7e5/0xc70
[  250.317123]  ? timer_fixup_init+0x70/0x70
[  250.321269]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.325776]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.330286]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  250.334871]  ? trace_hardirqs_on+0xbd/0x310
[  250.339210]  ? kasan_check_read+0x11/0x20
[  250.343360]  ? finish_task_switch+0x1f4/0x910
[  250.347855]  ? trace_hardirqs_off_caller+0x310/0x310
[  250.352969]  ? compat_start_thread+0x80/0x80
[  250.357400]  ? pvclock_read_flags+0x160/0x160
[  250.361914]  ? __switch_to_asm+0x34/0x70
[  250.365982]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.371520]  ? check_preemption_disabled+0x48/0x280
[  250.376546]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  250.382086]  ? rcu_pm_notify+0xc0/0xc0
[  250.385992]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.391526]  ? check_preemption_disabled+0x48/0x280
[  250.396543]  run_timer_softirq+0x52/0xb0
[  250.400602]  ? rcu_read_lock_sched_held+0x14f/0x180
[  250.405616]  __do_softirq+0x308/0xb7e
[  250.409440]  ? trace_hardirqs_on_caller+0xc0/0x310
[  250.414405]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  250.419525]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  250.424973]  ? trace_hardirqs_on+0x310/0x310
[  250.429399]  ? schedule+0x108/0x460
[  250.433492]  ? trace_hardirqs_off+0xb8/0x310
[  250.437911]  ? smpboot_thread_fn+0x68b/0xa00
[  250.442323]  ? trace_hardirqs_on+0x310/0x310
[  250.446732]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.452267]  ? check_preemption_disabled+0x48/0x280
[  250.457316]  ? takeover_tasklets+0xa90/0xa90
[  250.461727]  run_ksoftirqd+0x5e/0x100
[  250.465528]  smpboot_thread_fn+0x68b/0xa00
[  250.469764]  ? sort_range+0x30/0x30
[  250.473387]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  250.478485]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.484021]  ? __kthread_parkme+0xfb/0x1a0
[  250.488261]  ? sort_range+0x30/0x30
[  250.491902]  kthread+0x35a/0x440
[  250.495270]  ? kthread_stop+0x900/0x900
[  250.499261]  ret_from_fork+0x3a/0x50
[  250.502988] warn_alloc_show_mem: 1 callbacks suppressed
[  250.502999] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  250.503001] Mem-Info:
[  250.503032] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  250.503032]  active_file:12 inactive_file:14 isolated_file:0
[  250.503032]  unevictable:0 dirty:0 writeback:0 unstable:0
[  250.503032]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  250.503032]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  250.503032]  free:13757 free_pcp:113 free_cma:0
[  250.508365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  250.515295] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  250.517659] Call Trace:
[  250.517693]  <IRQ>
[  250.550728] 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
[  250.560084]  dump_stack+0x244/0x39d
[  250.588025] lowmem_reserve[]: 0 2818 6321 6321
[  250.590621]  ? dump_stack_print_info.cold.1+0x20/0x20
[  250.592750] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  250.618881]  warn_alloc.cold.116+0xb7/0x1bd
[  250.622481] lowmem_reserve[]: 0 0 3503 3503
[  250.627057]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  250.632222] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  250.659713]  ? lock_downgrade+0x900/0x900
[  250.664025] lowmem_reserve[]: 0 0 0 0
[  250.668358]  ? trace_hardirqs_off+0xb8/0x310
[  250.673186] 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
[  250.702246]  ? trace_hardirqs_off+0xb8/0x310
[  250.706366] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  250.710171]  __alloc_pages_slowpath+0x2651/0x2de0
[  250.714555] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  250.728095]  ? warn_alloc+0x120/0x120
[  250.732503] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  250.748009]  ? print_usage_bug+0xc0/0xc0
[  250.752832] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  250.767384]  ? warn_alloc+0x120/0x120
[  250.771161] 4236 total pagecache pages
[  250.779988]  ? warn_alloc+0x120/0x120
[  250.784036] 0 pages in swap cache
[  250.792609]  ? print_usage_bug+0xc0/0xc0
[  250.796386] Swap cache stats: add 0, delete 0, find 0/0
[  250.800269]  ? print_usage_bug+0xc0/0xc0
[  250.804047] Free swap  = 0kB
[  250.807491]  ? __lock_acquire+0x62f/0x4c20
[  250.811547] Total swap = 0kB
[  250.816935]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.820971] 1965979 pages RAM
[  250.823989]  ? should_fail+0x22d/0xd01
[  250.828197] 0 pages HighMem/MovableOnly
[  250.831210]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  250.836733] 342854 pages reserved
[  250.839829]  ? __lock_acquire+0x62f/0x4c20
[  250.843690] 0 pages cma reserved
[  250.847655]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  250.852848] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  250.856184]  ? __lock_acquire+0x62f/0x4c20
[  250.856196]  ? should_fail+0x22d/0xd01
[  250.856209]  ? find_held_lock+0x36/0x1c0
[  250.856229]  ? mark_held_locks+0x130/0x130
[  250.860498] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  250.863803]  ? mark_held_locks+0x130/0x130
[  250.868891] ksoftirqd/0 cpuset=/ mems_allowed=0
[  250.875389]  ? zap_class+0x640/0x640
[  250.914681]  ? zap_class+0x640/0x640
[  250.918401]  ? print_usage_bug+0xc0/0xc0
[  250.922461]  ? do_raw_spin_unlock+0xa7/0x330
[  250.926871]  ? zap_class+0x640/0x640
[  250.930621]  ? print_usage_bug+0xc0/0xc0
[  250.934680]  ? wq_watchdog_touch+0x9c/0xfe
[  250.938917]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.944471]  ? check_preemption_disabled+0x48/0x280
[  250.949495]  ? __lock_is_held+0xb5/0x140
[  250.953564]  __alloc_pages_nodemask+0xad8/0xea0
[  250.958248]  ? zap_class+0x640/0x640
[  250.961965]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  250.966991]  ? find_held_lock+0x36/0x1c0
[  250.971060]  ? ____cache_alloc_node+0x1c7/0x1e0
[  250.975730]  ? lock_downgrade+0x900/0x900
[  250.979894]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.985435]  cache_grow_begin+0xa5/0x8c0
[  250.989496]  ? do_raw_spin_unlock+0xa7/0x330
[  250.993917]  fallback_alloc+0x204/0x2e0
[  250.997905]  ____cache_alloc_node+0x1c7/0x1e0
[  251.002410]  kmem_cache_alloc_node+0xe3/0x730
[  251.006915]  ? ipv6_get_ifaddr+0x42e/0x620
[  251.011171]  __alloc_skb+0x119/0x770
[  251.014890]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.020194]  ? netdev_alloc_frag+0x1f0/0x1f0
[  251.024604]  ? lock_downgrade+0x900/0x900
[  251.028775]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.034311]  ? refcount_sub_and_test_checked+0x203/0x310
[  251.039763]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  251.045223]  ? addrconf_rs_timer+0x690/0x690
[  251.049675]  ndisc_alloc_skb+0x144/0x340
[  251.053737]  ndisc_send_rs+0x331/0x6e0
[  251.057658]  addrconf_rs_timer+0x314/0x690
[  251.061906]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.066156]  call_timer_fn+0x272/0x920
[  251.070048]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.074285]  ? process_timeout+0x40/0x40
[  251.078354]  ? mark_held_locks+0xc7/0x130
[  251.082507]  ? _raw_spin_unlock_irq+0x27/0x80
[  251.087003]  ? _raw_spin_unlock_irq+0x27/0x80
[  251.091502]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.095770]  ? lockdep_hardirqs_on+0x296/0x5b0
[  251.100356]  ? trace_hardirqs_on+0xbd/0x310
[  251.104684]  ? kasan_check_read+0x11/0x20
[  251.108826]  ? __run_timers+0x7da/0xc70
[  251.112799]  ? trace_hardirqs_off_caller+0x310/0x310
[  251.117943]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.122183]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.126435]  __run_timers+0x7e5/0xc70
[  251.130259]  ? timer_fixup_init+0x70/0x70
[  251.134417]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  251.139432]  ? zap_class+0x640/0x640
[  251.143166]  ? print_usage_bug+0xc0/0xc0
[  251.147229]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  251.152439]  ? find_held_lock+0x36/0x1c0
[  251.156520]  ? zap_class+0x640/0x640
[  251.160240]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.165777]  ? check_preemption_disabled+0x48/0x280
[  251.170815]  ? __lock_is_held+0xb5/0x140
[  251.174886]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.180424]  ? check_preemption_disabled+0x48/0x280
[  251.185463]  run_timer_softirq+0x52/0xb0
[  251.189523]  ? rcu_read_lock_sched_held+0x14f/0x180
[  251.194542]  __do_softirq+0x308/0xb7e
[  251.198347]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  251.202845]  ? lock_downgrade+0x900/0x900
[  251.207003]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  251.212112]  ? pvclock_read_flags+0x160/0x160
[  251.216611]  ? lapic_next_event+0x5a/0x90
[  251.220764]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.226309]  ? kvm_clock_read+0x18/0x30
[  251.230283]  ? kvm_sched_clock_read+0x9/0x20
[  251.234693]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.240230]  ? check_preemption_disabled+0x48/0x280
[  251.245273]  irq_exit+0x17f/0x1c0
[  251.248726]  smp_apic_timer_interrupt+0x1cb/0x760
[  251.253568]  ? smp_call_function_single_interrupt+0x159/0x650
[  251.259456]  ? smp_call_function_single_interrupt+0x650/0x650
[  251.265344]  ? interrupt_entry+0xb5/0xc0
[  251.269411]  ? trace_hardirqs_off_caller+0xbb/0x310
[  251.274425]  ? trace_hardirqs_off_caller+0xbb/0x310
[  251.279440]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  251.284287]  ? trace_hardirqs_on_caller+0x310/0x310
[  251.289301]  ? trace_hardirqs_on_caller+0x310/0x310
[  251.294317]  ? task_prio+0x50/0x50
[  251.297863]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.303416]  ? check_preemption_disabled+0x48/0x280
[  251.308440]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  251.313289]  apic_timer_interrupt+0xf/0x20
[  251.317518]  </IRQ>
[  251.319755] RIP: 0010:dump_stack+0x358/0x39d
[  251.324165] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  251.343062] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  251.350772] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  251.358037] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  251.365302] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  251.372581] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  251.379840] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  251.387128]  ? dump_stack+0x34f/0x39d
[  251.390947]  ? dump_stack_print_info.cold.1+0x20/0x20
[  251.396137]  ? mark_held_locks+0x130/0x130
[  251.400374]  ? mark_held_locks+0x130/0x130
[  251.404616]  dump_header+0x27b/0xf72
[  251.408341]  ? pagefault_out_of_memory+0x197/0x197
[  251.413292]  ? __lock_acquire+0x62f/0x4c20
[  251.417525]  ? percpu_ref_get_many+0x240/0x240
[  251.422122]  ? print_usage_bug+0xc0/0xc0
[  251.426185]  ? zap_class+0x640/0x640
[  251.429923]  ? print_usage_bug+0xc0/0xc0
[  251.433986]  ? print_usage_bug+0xc0/0xc0
[  251.438051]  ? zap_class+0x640/0x640
[  251.441766]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.447321]  ? find_held_lock+0x36/0x1c0
[  251.451397]  ? mark_held_locks+0xc7/0x130
[  251.455546]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  251.460645]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  251.465750]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  251.470336]  ? trace_hardirqs_on+0xbd/0x310
[  251.474658]  ? kasan_check_read+0x11/0x20
[  251.478821]  ? ___ratelimit+0x3b4/0x672
[  251.482797]  ? trace_hardirqs_off_caller+0x310/0x310
[  251.487908]  ? trace_hardirqs_on+0x310/0x310
[  251.492316]  ? lock_downgrade+0x900/0x900
[  251.496470]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  251.501574]  ? ___ratelimit+0x3b9/0x672
[  251.505547]  ? idr_get_free+0xf70/0xf70
[  251.509516]  ? find_held_lock+0x36/0x1c0
[  251.513587]  oom_kill_process.cold.27+0x10/0x903
[  251.518340]  ? zap_class+0x640/0x640
[  251.522051]  ? check_preemption_disabled+0x48/0x280
[  251.527081]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  251.532008]  ? kasan_check_read+0x11/0x20
[  251.536161]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.541435]  ? oom_evaluate_task+0x540/0x540
[  251.545846]  ? find_held_lock+0x36/0x1c0
[  251.549937]  ? out_of_memory+0x974/0x1430
[  251.554091]  ? lock_downgrade+0x900/0x900
[  251.558235]  ? check_preemption_disabled+0x48/0x280
[  251.563265]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  251.568197]  ? kasan_check_read+0x11/0x20
[  251.572346]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.577621]  ? rcu_softirq_qs+0x20/0x20
[  251.581597]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.587128]  ? oom_evaluate_task+0x302/0x540
[  251.591539]  out_of_memory+0xa84/0x1430
[  251.595534]  ? oom_killer_disable+0x3a0/0x3a0
[  251.600047]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  251.604994]  ? __ww_mutex_check_waiters+0x160/0x160
[  251.610035]  __alloc_pages_slowpath+0x232c/0x2de0
[  251.614913]  ? warn_alloc+0x120/0x120
[  251.618714]  ? mark_held_locks+0x130/0x130
[  251.622955]  ? find_get_entry+0xaae/0x1120
[  251.627203]  ? filemap_map_pages+0x1a20/0x1a20
[  251.631789]  ? zap_class+0x640/0x640
[  251.635505]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.641039]  ? check_preemption_disabled+0x48/0x280
[  251.646056]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.651595]  ? should_fail+0x22d/0xd01
[  251.655502]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  251.660610]  ? zap_class+0x640/0x640
[  251.664346]  ? __lock_is_held+0xb5/0x140
[  251.668457]  ? mark_held_locks+0x130/0x130
[  251.672700]  ? lock_release+0xa00/0xa00
[  251.676676]  ? perf_trace_sched_process_exec+0x860/0x860
[  251.682127]  ? xa_load+0x2ba/0x460
[  251.685670]  ? lock_downgrade+0x900/0x900
[  251.689826]  ? __might_sleep+0x95/0x190
[  251.693804]  __alloc_pages_nodemask+0xad8/0xea0
[  251.698489]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  251.703502]  ? __page_cache_alloc+0x191/0x5c0
[  251.707996]  ? xa_load+0x2e1/0x460
[  251.711535]  ? xa_clear_mark+0x40/0x40
[  251.715425]  ? zap_class+0x640/0x640
[  251.719146]  ? zap_class+0x640/0x640
[  251.722863]  ? zap_class+0x640/0x640
[  251.726582]  ? __do_page_cache_readahead+0x663/0x810
[  251.731704]  ? find_held_lock+0x36/0x1c0
[  251.735780]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  251.741336]  alloc_pages_current+0x173/0x350
[  251.745769]  __page_cache_alloc+0x38c/0x5c0
[  251.750101]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  251.755033]  ? kasan_check_read+0x11/0x20
[  251.759184]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.764481]  ? generic_perform_write+0x6a0/0x6a0
[  251.769240]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.774780]  ? check_preemption_disabled+0x48/0x280
[  251.779806]  filemap_fault+0x1595/0x25f0
[  251.783889]  ? __lock_page_or_retry+0xa00/0xa00
[  251.788570]  ? mark_held_locks+0x130/0x130
[  251.792812]  ? filemap_map_pages+0xd6b/0x1a20
[  251.797311]  ? lock_downgrade+0x900/0x900
[  251.801456]  ? check_preemption_disabled+0x48/0x280
[  251.806478]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  251.811409]  ? kasan_check_read+0x11/0x20
[  251.815568]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.820838]  ? rcu_softirq_qs+0x20/0x20
[  251.824826]  ? filemap_map_pages+0xd92/0x1a20
[  251.829336]  ? find_get_entries_tag+0x1400/0x1400
[  251.834182]  ? debug_object_destroy+0x2b0/0x2b0
[  251.838894]  ? lock_pi_update_atomic+0x150/0x150
[  251.843664]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.849227]  ? lock_acquire+0x1ed/0x520
[  251.853200]  ? ext4_filemap_fault+0x7a/0xad
[  251.857528]  ? lock_release+0xa00/0xa00
[  251.861501]  ? perf_trace_sched_process_exec+0x860/0x860
[  251.866969]  ? print_usage_bug+0xc0/0xc0
[  251.871032]  ? print_usage_bug+0xc0/0xc0
[  251.875109]  ? down_read+0x8d/0x120
[  251.878747]  ? ext4_filemap_fault+0x7a/0xad
[  251.883069]  ? __down_interruptible+0x700/0x700
[  251.887743]  ext4_filemap_fault+0x82/0xad
[  251.891898]  __do_fault+0x100/0x6b0
[  251.895524]  ? find_held_lock+0x36/0x1c0
[  251.899585]  ? pmd_devmap_trans_unstable+0x220/0x220
[  251.904705]  ? mark_held_locks+0x130/0x130
[  251.908944]  ? mark_held_locks+0x130/0x130
[  251.913175]  ? _raw_spin_unlock_irq+0x27/0x80
[  251.917666]  ? _raw_spin_unlock_irq+0x27/0x80
[  251.922174]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  251.926762]  ? kasan_check_read+0x11/0x20
[  251.930913]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.936466]  __handle_mm_fault+0x3ea0/0x5be0
[  251.940892]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  251.945737]  ? finish_task_switch+0x1f4/0x910
[  251.950230]  ? finish_task_switch+0x1b4/0x910
[  251.954722]  ? __switch_to_asm+0x34/0x70
[  251.958816]  ? preempt_notifier_register+0x200/0x200
[  251.963939]  ? __switch_to_asm+0x34/0x70
[  251.968015]  ? __switch_to_asm+0x34/0x70
[  251.972115]  ? zap_class+0x640/0x640
[  251.975837]  ? zap_class+0x640/0x640
[  251.979546]  ? __x64_sys_futex+0x53e/0x6a0
[  251.983783]  ? find_held_lock+0x36/0x1c0
[  251.987852]  ? handle_mm_fault+0x42a/0xc70
[  251.992098]  ? lock_downgrade+0x900/0x900
[  251.996244]  ? check_preemption_disabled+0x48/0x280
[  252.001293]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  252.006219]  ? kasan_check_read+0x11/0x20
[  252.010367]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.015648]  ? rcu_softirq_qs+0x20/0x20
[  252.019620]  ? trace_hardirqs_off_caller+0x310/0x310
[  252.024743]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.030296]  ? check_preemption_disabled+0x48/0x280
[  252.035318]  handle_mm_fault+0x54f/0xc70
[  252.039385]  ? __handle_mm_fault+0x5be0/0x5be0
[  252.043986]  ? find_vma+0x34/0x190
[  252.047533]  __do_page_fault+0x5e8/0xe60
[  252.051591]  ? trace_hardirqs_off+0xb8/0x310
[  252.056012]  do_page_fault+0xf2/0x7e0
[  252.059813]  ? vmalloc_sync_all+0x30/0x30
[  252.063960]  ? error_entry+0x70/0xd0
[  252.067682]  ? trace_hardirqs_off_caller+0xbb/0x310
[  252.072696]  ? trace_hardirqs_on_caller+0xc0/0x310
[  252.077625]  ? syscall_return_slowpath+0x5e0/0x5e0
[  252.082555]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.087403]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.092424]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  252.097889]  ? prepare_exit_to_usermode+0x291/0x3b0
[  252.102950]  ? page_fault+0x8/0x30
[  252.106496]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.111341]  ? page_fault+0x8/0x30
[  252.114889]  page_fault+0x1e/0x30
[  252.118362] RIP: 0033:0x40f9c0
[  252.121569] Code: Bad RIP value.
[  252.124940] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  252.130302] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  252.137567] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  252.144833] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  252.152103] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  252.159373] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  252.166695] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  252.166764] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  252.173446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  252.173455] Call Trace:
[  252.180031] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  252.189290]  dump_stack+0x244/0x39d
[  252.191853] syz-fuzzer cpuset=/ mems_allowed=0
[  252.202080]  ? dump_stack_print_info.cold.1+0x20/0x20
[  252.215439]  warn_alloc.cold.116+0xb7/0x1bd
[  252.219776]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  252.224622]  ? lock_downgrade+0x900/0x900
[  252.228778]  ? trace_hardirqs_off+0xb8/0x310
[  252.233192]  ? trace_hardirqs_off+0xb8/0x310
[  252.237610]  __alloc_pages_slowpath+0x2651/0x2de0
[  252.242481]  ? warn_alloc+0x120/0x120
[  252.246277]  ? print_usage_bug+0xc0/0xc0
[  252.250335]  ? warn_alloc+0x120/0x120
[  252.254145]  ? warn_alloc+0x120/0x120
[  252.257948]  ? print_usage_bug+0xc0/0xc0
[  252.262017]  ? print_usage_bug+0xc0/0xc0
[  252.266082]  ? __lock_acquire+0x62f/0x4c20
[  252.270321]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.275904]  ? should_fail+0x22d/0xd01
[  252.279828]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  252.284929]  ? __lock_acquire+0x62f/0x4c20
[  252.289169]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  252.294268]  ? __lock_acquire+0x62f/0x4c20
[  252.298514]  ? should_fail+0x22d/0xd01
[  252.302395]  ? find_held_lock+0x36/0x1c0
[  252.306462]  ? mark_held_locks+0x130/0x130
[  252.310699]  ? mark_held_locks+0x130/0x130
[  252.314933]  ? zap_class+0x640/0x640
[  252.318649]  ? zap_class+0x640/0x640
[  252.322361]  ? print_usage_bug+0xc0/0xc0
[  252.326424]  ? do_raw_spin_unlock+0xa7/0x330
[  252.330829]  ? zap_class+0x640/0x640
[  252.334542]  ? print_usage_bug+0xc0/0xc0
[  252.338616]  ? wq_watchdog_touch+0x9c/0xfe
[  252.342852]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.348402]  ? check_preemption_disabled+0x48/0x280
[  252.353430]  ? __lock_is_held+0xb5/0x140
[  252.357493]  __alloc_pages_nodemask+0xad8/0xea0
[  252.362158]  ? zap_class+0x640/0x640
[  252.365901]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  252.370933]  ? find_held_lock+0x36/0x1c0
[  252.375013]  ? ____cache_alloc_node+0x1c7/0x1e0
[  252.379685]  ? lock_downgrade+0x900/0x900
[  252.383835]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.389423]  cache_grow_begin+0xa5/0x8c0
[  252.393485]  ? do_raw_spin_unlock+0xa7/0x330
[  252.397912]  fallback_alloc+0x204/0x2e0
[  252.401906]  ____cache_alloc_node+0x1c7/0x1e0
[  252.406405]  kmem_cache_alloc_node+0xe3/0x730
[  252.410946]  ? ipv6_get_ifaddr+0x42e/0x620
[  252.415225]  __alloc_skb+0x119/0x770
[  252.418940]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.424235]  ? netdev_alloc_frag+0x1f0/0x1f0
[  252.428640]  ? lock_downgrade+0x900/0x900
[  252.433377]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.438924]  ? refcount_sub_and_test_checked+0x203/0x310
[  252.444378]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  252.449834]  ? addrconf_rs_timer+0x690/0x690
[  252.454252]  ndisc_alloc_skb+0x144/0x340
[  252.458315]  ndisc_send_rs+0x331/0x6e0
[  252.462209]  addrconf_rs_timer+0x314/0x690
[  252.466450]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.470780]  call_timer_fn+0x272/0x920
[  252.474661]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.478912]  ? process_timeout+0x40/0x40
[  252.482980]  ? __run_timers+0x7da/0xc70
[  252.486968]  ? _raw_spin_unlock_irq+0x27/0x80
[  252.491461]  ? _raw_spin_unlock_irq+0x27/0x80
[  252.495953]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.500189]  ? lockdep_hardirqs_on+0x296/0x5b0
[  252.504783]  ? trace_hardirqs_on+0xbd/0x310
[  252.509103]  ? kasan_check_read+0x11/0x20
[  252.513250]  ? __run_timers+0x7da/0xc70
[  252.517225]  ? trace_hardirqs_off_caller+0x310/0x310
[  252.522332]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.526577]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.530812]  __run_timers+0x7e5/0xc70
[  252.534620]  ? timer_fixup_init+0x70/0x70
[  252.538768]  ? _raw_spin_unlock_irq+0x27/0x80
[  252.543258]  ? _raw_spin_unlock_irq+0x27/0x80
[  252.547753]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  252.552354]  ? trace_hardirqs_on+0xbd/0x310
[  252.556688]  ? kasan_check_read+0x11/0x20
[  252.560833]  ? finish_task_switch+0x1f4/0x910
[  252.565458]  ? trace_hardirqs_off_caller+0x310/0x310
[  252.570561]  ? compat_start_thread+0x80/0x80
[  252.574992]  ? pvclock_read_flags+0x160/0x160
[  252.579484]  ? __switch_to_asm+0x34/0x70
[  252.583546]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.589085]  ? check_preemption_disabled+0x48/0x280
[  252.594112]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  252.599652]  ? rcu_pm_notify+0xc0/0xc0
[  252.603538]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.609078]  ? check_preemption_disabled+0x48/0x280
[  252.614103]  run_timer_softirq+0x52/0xb0
[  252.618182]  ? rcu_read_lock_sched_held+0x14f/0x180
[  252.623197]  __do_softirq+0x308/0xb7e
[  252.627001]  ? trace_hardirqs_on_caller+0xc0/0x310
[  252.631947]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  252.637051]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  252.642499]  ? trace_hardirqs_on+0x310/0x310
[  252.646924]  ? schedule+0x108/0x460
[  252.650563]  ? trace_hardirqs_off+0xb8/0x310
[  252.654973]  ? smpboot_thread_fn+0x68b/0xa00
[  252.659383]  ? trace_hardirqs_on+0x310/0x310
[  252.663792]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.669329]  ? check_preemption_disabled+0x48/0x280
[  252.674343]  ? takeover_tasklets+0xa90/0xa90
[  252.678765]  run_ksoftirqd+0x5e/0x100
[  252.682584]  smpboot_thread_fn+0x68b/0xa00
[  252.686823]  ? sort_range+0x30/0x30
[  252.690467]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  252.695567]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.701143]  ? __kthread_parkme+0xfb/0x1a0
[  252.705382]  ? sort_range+0x30/0x30
[  252.709009]  kthread+0x35a/0x440
[  252.712394]  ? kthread_stop+0x900/0x900
[  252.716367]  ret_from_fork+0x3a/0x50
[  252.720099] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  252.720104] warn_alloc_show_mem: 1 callbacks suppressed
[  252.720111] Mem-Info:
[  252.727035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  252.732397] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  252.732397]  active_file:12 inactive_file:14 isolated_file:0
[  252.732397]  unevictable:0 dirty:0 writeback:0 unstable:0
[  252.732397]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  252.732397]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  252.732397]  free:13757 free_pcp:113 free_cma:0
[  252.734775] Call Trace:
[  252.744247] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  252.777261]  <IRQ>
[  252.779828] 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
[  252.807670]  dump_stack+0x244/0x39d
[  252.809797] lowmem_reserve[]: 0 2818 6321 6321
[  252.835912]  ? dump_stack_print_info.cold.1+0x20/0x20
[  252.839511] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  252.844110]  warn_alloc.cold.116+0xb7/0x1bd
[  252.849265] lowmem_reserve[]: 0 0 3503 3503
[  252.876768]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  252.881080] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  252.885403]  ? lock_downgrade+0x900/0x900
[  252.890227] lowmem_reserve[]: 0 0 0 0
[  252.919301]  ? trace_hardirqs_off+0xb8/0x310
[  252.923420] 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
[  252.927214]  ? trace_hardirqs_off+0xb8/0x310
[  252.931593] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  252.945116]  __alloc_pages_slowpath+0x2651/0x2de0
[  252.949498] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  252.965048]  ? warn_alloc+0x120/0x120
[  252.969850] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  252.984404]  ? print_usage_bug+0xc0/0xc0
[  252.988181] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  252.997029]  ? warn_alloc+0x120/0x120
[  253.001070] 4236 total pagecache pages
[  253.009654]  ? warn_alloc+0x120/0x120
[  253.013437] 0 pages in swap cache
[  253.017309]  ? print_usage_bug+0xc0/0xc0
[  253.021086] Swap cache stats: add 0, delete 0, find 0/0
[  253.024526]  ? kvm_clock_read+0x18/0x30
[  253.028562] Free swap  = 0kB
[  253.033915]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  253.037866] Total swap = 0kB
[  253.040889]  ? print_usage_bug+0xc0/0xc0
[  253.045893] 1965979 pages RAM
[  253.048902]  ? __lock_acquire+0x62f/0x4c20
[  253.048921]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.052960] 0 pages HighMem/MovableOnly
[  253.056059]  ? should_fail+0x22d/0xd01
[  253.060265] 342854 pages reserved
[  253.065794]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.069745] 0 pages cma reserved
[  253.073622]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  253.077125] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  253.082322]  ? __lock_acquire+0x62f/0x4c20
[  253.085748] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  253.090762]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  253.097241] ksoftirqd/0 cpuset=/ mems_allowed=0
[  253.101466]  ? __lock_acquire+0x62f/0x4c20
[  253.125724]  ? should_fail+0x22d/0xd01
[  253.129608]  ? rcu_irq_exit+0x1a2/0x390
[  253.133590]  ? mark_held_locks+0x130/0x130
[  253.137829]  ? mark_held_locks+0x130/0x130
[  253.142073]  ? mark_held_locks+0xc7/0x130
[  253.146223]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  253.151239]  ? zap_class+0x640/0x640
[  253.154949]  ? print_usage_bug+0xc0/0xc0
[  253.159016]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.164553]  ? check_preemption_disabled+0x48/0x280
[  253.169580]  ? __lock_is_held+0xb5/0x140
[  253.173668]  __alloc_pages_nodemask+0xad8/0xea0
[  253.178336]  ? zap_class+0x640/0x640
[  253.182055]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  253.187080]  ? find_held_lock+0x36/0x1c0
[  253.191153]  ? ____cache_alloc_node+0x1c7/0x1e0
[  253.195823]  ? lock_downgrade+0x900/0x900
[  253.199984]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.205545]  cache_grow_begin+0xa5/0x8c0
[  253.209608]  ? do_raw_spin_unlock+0xa7/0x330
[  253.214042]  fallback_alloc+0x204/0x2e0
[  253.218023]  ____cache_alloc_node+0x1c7/0x1e0
[  253.222524]  kmem_cache_alloc_node+0xe3/0x730
[  253.227020]  ? ipv6_get_ifaddr+0x42e/0x620
[  253.231296]  __alloc_skb+0x119/0x770
[  253.235008]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.240290]  ? netdev_alloc_frag+0x1f0/0x1f0
[  253.244716]  ? lock_downgrade+0x900/0x900
[  253.248904]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.254456]  ? refcount_sub_and_test_checked+0x203/0x310
[  253.259941]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  253.265394]  ? addrconf_rs_timer+0x690/0x690
[  253.269811]  ndisc_alloc_skb+0x144/0x340
[  253.273886]  ndisc_send_rs+0x331/0x6e0
[  253.277779]  addrconf_rs_timer+0x314/0x690
[  253.282034]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.286276]  call_timer_fn+0x272/0x920
[  253.290166]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.294408]  ? process_timeout+0x40/0x40
[  253.298492]  ? mark_held_locks+0xc7/0x130
[  253.302649]  ? _raw_spin_unlock_irq+0x27/0x80
[  253.307142]  ? _raw_spin_unlock_irq+0x27/0x80
[  253.311649]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.315889]  ? lockdep_hardirqs_on+0x296/0x5b0
[  253.320475]  ? trace_hardirqs_on+0xbd/0x310
[  253.324795]  ? kasan_check_read+0x11/0x20
[  253.328965]  ? __run_timers+0x7da/0xc70
[  253.332943]  ? trace_hardirqs_off_caller+0x310/0x310
[  253.338071]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.342316]  __run_timers+0x7e5/0xc70
[  253.346139]  ? timer_fixup_init+0x70/0x70
[  253.350285]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  253.355297]  ? zap_class+0x640/0x640
[  253.359018]  ? print_usage_bug+0xc0/0xc0
[  253.363097]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  253.368294]  ? find_held_lock+0x36/0x1c0
[  253.372367]  ? zap_class+0x640/0x640
[  253.376087]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.381622]  ? check_preemption_disabled+0x48/0x280
[  253.386644]  ? __lock_is_held+0xb5/0x140
[  253.390702]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.396240]  ? check_preemption_disabled+0x48/0x280
[  253.401260]  run_timer_softirq+0x52/0xb0
[  253.405321]  ? rcu_read_lock_sched_held+0x14f/0x180
[  253.410334]  __do_softirq+0x308/0xb7e
[  253.414135]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  253.418630]  ? lock_downgrade+0x900/0x900
[  253.422811]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  253.427925]  ? pvclock_read_flags+0x160/0x160
[  253.432421]  ? lapic_next_event+0x5a/0x90
[  253.436570]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.442113]  ? kvm_clock_read+0x18/0x30
[  253.446105]  ? kvm_sched_clock_read+0x9/0x20
[  253.450528]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.456067]  ? check_preemption_disabled+0x48/0x280
[  253.461091]  irq_exit+0x17f/0x1c0
[  253.464547]  smp_apic_timer_interrupt+0x1cb/0x760
[  253.469385]  ? smp_call_function_single_interrupt+0x159/0x650
[  253.475316]  ? smp_call_function_single_interrupt+0x650/0x650
[  253.481222]  ? interrupt_entry+0xb5/0xc0
[  253.485288]  ? trace_hardirqs_off_caller+0xbb/0x310
[  253.490303]  ? trace_hardirqs_off_caller+0xbb/0x310
[  253.495320]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  253.500164]  ? trace_hardirqs_on_caller+0x310/0x310
[  253.505198]  ? trace_hardirqs_on_caller+0x310/0x310
[  253.510215]  ? task_prio+0x50/0x50
[  253.513754]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.519294]  ? check_preemption_disabled+0x48/0x280
[  253.524622]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  253.529470]  apic_timer_interrupt+0xf/0x20
[  253.533696]  </IRQ>
[  253.535931] RIP: 0010:dump_stack+0x358/0x39d
[  253.540343] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  253.559242] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  253.566962] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  253.574230] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  253.581495] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  253.588757] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  253.596021] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  253.603331]  ? dump_stack+0x34f/0x39d
[  253.607159]  ? dump_stack_print_info.cold.1+0x20/0x20
[  253.612349]  ? mark_held_locks+0x130/0x130
[  253.616582]  ? mark_held_locks+0x130/0x130
[  253.620821]  dump_header+0x27b/0xf72
[  253.624548]  ? pagefault_out_of_memory+0x197/0x197
[  253.629483]  ? __lock_acquire+0x62f/0x4c20
[  253.633718]  ? percpu_ref_get_many+0x240/0x240
[  253.638316]  ? print_usage_bug+0xc0/0xc0
[  253.642381]  ? zap_class+0x640/0x640
[  253.646108]  ? print_usage_bug+0xc0/0xc0
[  253.650167]  ? print_usage_bug+0xc0/0xc0
[  253.654228]  ? zap_class+0x640/0x640
[  253.657947]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.663489]  ? find_held_lock+0x36/0x1c0
[  253.667558]  ? mark_held_locks+0xc7/0x130
[  253.671706]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  253.676809]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  253.681927]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  253.686513]  ? trace_hardirqs_on+0xbd/0x310
[  253.690837]  ? kasan_check_read+0x11/0x20
[  253.694996]  ? ___ratelimit+0x3b4/0x672
[  253.698970]  ? trace_hardirqs_off_caller+0x310/0x310
[  253.704076]  ? trace_hardirqs_on+0x310/0x310
[  253.708487]  ? lock_downgrade+0x900/0x900
[  253.712650]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  253.717767]  ? ___ratelimit+0x3b9/0x672
[  253.721751]  ? idr_get_free+0xf70/0xf70
[  253.725740]  ? find_held_lock+0x36/0x1c0
[  253.729824]  oom_kill_process.cold.27+0x10/0x903
[  253.734577]  ? zap_class+0x640/0x640
[  253.738293]  ? check_preemption_disabled+0x48/0x280
[  253.743310]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  253.748240]  ? kasan_check_read+0x11/0x20
[  253.752391]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.757667]  ? oom_evaluate_task+0x540/0x540
[  253.762084]  ? find_held_lock+0x36/0x1c0
[  253.766158]  ? out_of_memory+0x974/0x1430
[  253.770320]  ? lock_downgrade+0x900/0x900
[  253.774468]  ? check_preemption_disabled+0x48/0x280
[  253.779511]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  253.784441]  ? kasan_check_read+0x11/0x20
[  253.788588]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.793867]  ? rcu_softirq_qs+0x20/0x20
[  253.797872]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.803419]  ? oom_evaluate_task+0x302/0x540
[  253.807828]  out_of_memory+0xa84/0x1430
[  253.811809]  ? oom_killer_disable+0x3a0/0x3a0
[  253.816318]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  253.821251]  ? __ww_mutex_check_waiters+0x160/0x160
[  253.826282]  __alloc_pages_slowpath+0x232c/0x2de0
[  253.831155]  ? warn_alloc+0x120/0x120
[  253.834953]  ? mark_held_locks+0x130/0x130
[  253.839192]  ? find_get_entry+0xaae/0x1120
[  253.843437]  ? filemap_map_pages+0x1a20/0x1a20
[  253.848027]  ? zap_class+0x640/0x640
[  253.851743]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.857282]  ? check_preemption_disabled+0x48/0x280
[  253.862301]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.867839]  ? should_fail+0x22d/0xd01
[  253.871734]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  253.876841]  ? zap_class+0x640/0x640
[  253.880591]  ? __lock_is_held+0xb5/0x140
[  253.884659]  ? mark_held_locks+0x130/0x130
[  253.888905]  ? lock_release+0xa00/0xa00
[  253.892888]  ? perf_trace_sched_process_exec+0x860/0x860
[  253.898338]  ? xa_load+0x2ba/0x460
[  253.901889]  ? lock_downgrade+0x900/0x900
[  253.906045]  ? __might_sleep+0x95/0x190
[  253.910028]  __alloc_pages_nodemask+0xad8/0xea0
[  253.914715]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  253.919732]  ? __page_cache_alloc+0x191/0x5c0
[  253.924254]  ? xa_load+0x2e1/0x460
[  253.927799]  ? xa_clear_mark+0x40/0x40
[  253.931688]  ? zap_class+0x640/0x640
[  253.935438]  ? zap_class+0x640/0x640
[  253.939155]  ? zap_class+0x640/0x640
[  253.942872]  ? __do_page_cache_readahead+0x663/0x810
[  253.947988]  ? find_held_lock+0x36/0x1c0
[  253.952054]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  253.957596]  alloc_pages_current+0x173/0x350
[  253.962008]  __page_cache_alloc+0x38c/0x5c0
[  253.966324]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  253.971271]  ? kasan_check_read+0x11/0x20
[  253.975420]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.980701]  ? generic_perform_write+0x6a0/0x6a0
[  253.985471]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.991010]  ? check_preemption_disabled+0x48/0x280
[  253.996036]  filemap_fault+0x1595/0x25f0
[  254.000111]  ? __lock_page_or_retry+0xa00/0xa00
[  254.004779]  ? mark_held_locks+0x130/0x130
[  254.009026]  ? filemap_map_pages+0xd6b/0x1a20
[  254.013522]  ? lock_downgrade+0x900/0x900
[  254.017667]  ? check_preemption_disabled+0x48/0x280
[  254.022688]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  254.027618]  ? kasan_check_read+0x11/0x20
[  254.031778]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.037050]  ? rcu_softirq_qs+0x20/0x20
[  254.041047]  ? filemap_map_pages+0xd92/0x1a20
[  254.045552]  ? find_get_entries_tag+0x1400/0x1400
[  254.050399]  ? debug_object_destroy+0x2b0/0x2b0
[  254.055087]  ? lock_pi_update_atomic+0x150/0x150
[  254.059846]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.065402]  ? lock_acquire+0x1ed/0x520
[  254.069378]  ? ext4_filemap_fault+0x7a/0xad
[  254.073711]  ? lock_release+0xa00/0xa00
[  254.077700]  ? perf_trace_sched_process_exec+0x860/0x860
[  254.083149]  ? print_usage_bug+0xc0/0xc0
[  254.087241]  ? print_usage_bug+0xc0/0xc0
[  254.091348]  ? down_read+0x8d/0x120
[  254.094972]  ? ext4_filemap_fault+0x7a/0xad
[  254.099297]  ? __down_interruptible+0x700/0x700
[  254.103973]  ext4_filemap_fault+0x82/0xad
[  254.108125]  __do_fault+0x100/0x6b0
[  254.111755]  ? find_held_lock+0x36/0x1c0
[  254.115820]  ? pmd_devmap_trans_unstable+0x220/0x220
[  254.120932]  ? mark_held_locks+0x130/0x130
[  254.125169]  ? mark_held_locks+0x130/0x130
[  254.129406]  ? _raw_spin_unlock_irq+0x27/0x80
[  254.133906]  ? _raw_spin_unlock_irq+0x27/0x80
[  254.138421]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  254.143025]  ? kasan_check_read+0x11/0x20
[  254.147175]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.152746]  __handle_mm_fault+0x3ea0/0x5be0
[  254.157163]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  254.162010]  ? finish_task_switch+0x1f4/0x910
[  254.166502]  ? finish_task_switch+0x1b4/0x910
[  254.171007]  ? __switch_to_asm+0x34/0x70
[  254.175073]  ? preempt_notifier_register+0x200/0x200
[  254.180175]  ? __switch_to_asm+0x34/0x70
[  254.184235]  ? __switch_to_asm+0x34/0x70
[  254.188305]  ? zap_class+0x640/0x640
[  254.192018]  ? zap_class+0x640/0x640
[  254.195734]  ? __x64_sys_futex+0x53e/0x6a0
[  254.199976]  ? find_held_lock+0x36/0x1c0
[  254.204051]  ? handle_mm_fault+0x42a/0xc70
[  254.208286]  ? lock_downgrade+0x900/0x900
[  254.212434]  ? check_preemption_disabled+0x48/0x280
[  254.217454]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  254.222379]  ? kasan_check_read+0x11/0x20
[  254.226533]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.231823]  ? rcu_softirq_qs+0x20/0x20
[  254.235796]  ? trace_hardirqs_off_caller+0x310/0x310
[  254.240903]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.246444]  ? check_preemption_disabled+0x48/0x280
[  254.251468]  handle_mm_fault+0x54f/0xc70
[  254.255535]  ? __handle_mm_fault+0x5be0/0x5be0
[  254.260122]  ? find_vma+0x34/0x190
[  254.263669]  __do_page_fault+0x5e8/0xe60
[  254.267727]  ? trace_hardirqs_off+0xb8/0x310
[  254.272144]  do_page_fault+0xf2/0x7e0
[  254.275949]  ? vmalloc_sync_all+0x30/0x30
[  254.280100]  ? error_entry+0x70/0xd0
[  254.283814]  ? trace_hardirqs_off_caller+0xbb/0x310
[  254.288838]  ? trace_hardirqs_on_caller+0xc0/0x310
[  254.293766]  ? syscall_return_slowpath+0x5e0/0x5e0
[  254.298697]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.303554]  ? trace_hardirqs_on_caller+0x310/0x310
[  254.308563]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  254.314017]  ? prepare_exit_to_usermode+0x291/0x3b0
[  254.319031]  ? page_fault+0x8/0x30
[  254.322574]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.327419]  ? page_fault+0x8/0x30
[  254.330958]  page_fault+0x1e/0x30
[  254.334413] RIP: 0033:0x40f9c0
[  254.337632] Code: Bad RIP value.
[  254.341018] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  254.346374] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  254.353643] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  254.360938] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  254.368221] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  254.375483] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  254.382790] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  254.382857] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  254.389539] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  254.389544] Call Trace:
[  254.389563]  dump_stack+0x244/0x39d
[  254.389583]  ? dump_stack_print_info.cold.1+0x20/0x20
[  254.396164] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  254.405434]  warn_alloc.cold.116+0xb7/0x1bd
[  254.407986] syz-fuzzer cpuset=/ mems_allowed=0
[  254.411603]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  254.441235]  ? lock_downgrade+0x900/0x900
[  254.445389]  ? trace_hardirqs_off+0xb8/0x310
[  254.449799]  ? trace_hardirqs_off+0xb8/0x310
[  254.454227]  __alloc_pages_slowpath+0x2651/0x2de0
[  254.459095]  ? warn_alloc+0x120/0x120
[  254.462909]  ? print_usage_bug+0xc0/0xc0
[  254.466983]  ? warn_alloc+0x120/0x120
[  254.470805]  ? warn_alloc+0x120/0x120
[  254.474654]  ? print_usage_bug+0xc0/0xc0
[  254.478748]  ? print_usage_bug+0xc0/0xc0
[  254.482812]  ? __lock_acquire+0x62f/0x4c20
[  254.487052]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.492589]  ? should_fail+0x22d/0xd01
[  254.496477]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  254.501580]  ? __lock_acquire+0x62f/0x4c20
[  254.505818]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  254.510920]  ? __lock_acquire+0x62f/0x4c20
[  254.515152]  ? should_fail+0x22d/0xd01
[  254.519042]  ? find_held_lock+0x36/0x1c0
[  254.523113]  ? mark_held_locks+0x130/0x130
[  254.527355]  ? mark_held_locks+0x130/0x130
[  254.531586]  ? zap_class+0x640/0x640
[  254.535363]  ? mark_held_locks+0xc7/0x130
[  254.539521]  ? do_raw_spin_unlock+0xa7/0x330
[  254.543944]  ? zap_class+0x640/0x640
[  254.547661]  ? print_usage_bug+0xc0/0xc0
[  254.551744]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.557286]  ? check_preemption_disabled+0x48/0x280
[  254.562433]  ? __lock_is_held+0xb5/0x140
[  254.566502]  __alloc_pages_nodemask+0xad8/0xea0
[  254.571181]  ? zap_class+0x640/0x640
[  254.574931]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  254.579959]  ? find_held_lock+0x36/0x1c0
[  254.584029]  ? ____cache_alloc_node+0x1c7/0x1e0
[  254.588706]  ? lock_downgrade+0x900/0x900
[  254.592872]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.598480]  cache_grow_begin+0xa5/0x8c0
[  254.602548]  ? do_raw_spin_unlock+0xa7/0x330
[  254.606965]  fallback_alloc+0x204/0x2e0
[  254.610944]  ____cache_alloc_node+0x1c7/0x1e0
[  254.615447]  kmem_cache_alloc_node+0xe3/0x730
[  254.619970]  ? ipv6_get_ifaddr+0x42e/0x620
[  254.624263]  __alloc_skb+0x119/0x770
[  254.627975]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.633258]  ? netdev_alloc_frag+0x1f0/0x1f0
[  254.637679]  ? lock_downgrade+0x900/0x900
[  254.641835]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.647387]  ? refcount_sub_and_test_checked+0x203/0x310
[  254.652841]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  254.658292]  ? addrconf_rs_timer+0x690/0x690
[  254.662713]  ndisc_alloc_skb+0x144/0x340
[  254.666777]  ndisc_send_rs+0x331/0x6e0
[  254.670669]  addrconf_rs_timer+0x314/0x690
[  254.674916]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.679162]  call_timer_fn+0x272/0x920
[  254.683049]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.687279]  ? process_timeout+0x40/0x40
[  254.691343]  ? __run_timers+0x7da/0xc70
[  254.695318]  ? _raw_spin_unlock_irq+0x27/0x80
[  254.699812]  ? _raw_spin_unlock_irq+0x27/0x80
[  254.704298]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.708528]  ? lockdep_hardirqs_on+0x296/0x5b0
[  254.713108]  ? trace_hardirqs_on+0xbd/0x310
[  254.717440]  ? kasan_check_read+0x11/0x20
[  254.721582]  ? __run_timers+0x7da/0xc70
[  254.725555]  ? trace_hardirqs_off_caller+0x310/0x310
[  254.730661]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.734908]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.739159]  __run_timers+0x7e5/0xc70
[  254.742974]  ? timer_fixup_init+0x70/0x70
[  254.747123]  ? _raw_spin_unlock_irq+0x27/0x80
[  254.751614]  ? _raw_spin_unlock_irq+0x27/0x80
[  254.756110]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  254.760692]  ? trace_hardirqs_on+0xbd/0x310
[  254.765010]  ? kasan_check_read+0x11/0x20
[  254.769162]  ? finish_task_switch+0x1f4/0x910
[  254.773657]  ? trace_hardirqs_off_caller+0x310/0x310
[  254.778792]  ? compat_start_thread+0x80/0x80
[  254.783226]  ? pvclock_read_flags+0x160/0x160
[  254.787723]  ? __switch_to_asm+0x34/0x70
[  254.791783]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.797324]  ? check_preemption_disabled+0x48/0x280
[  254.802348]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  254.807902]  ? rcu_pm_notify+0xc0/0xc0
[  254.811793]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.817346]  ? check_preemption_disabled+0x48/0x280
[  254.822369]  run_timer_softirq+0x52/0xb0
[  254.826446]  ? rcu_read_lock_sched_held+0x14f/0x180
[  254.831464]  __do_softirq+0x308/0xb7e
[  254.835273]  ? trace_hardirqs_on_caller+0xc0/0x310
[  254.840206]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  254.845308]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  254.850759]  ? trace_hardirqs_on+0x310/0x310
[  254.855173]  ? schedule+0x108/0x460
[  254.858811]  ? trace_hardirqs_off+0xb8/0x310
[  254.863220]  ? smpboot_thread_fn+0x68b/0xa00
[  254.867645]  ? trace_hardirqs_on+0x310/0x310
[  254.872053]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.877608]  ? check_preemption_disabled+0x48/0x280
[  254.882622]  ? takeover_tasklets+0xa90/0xa90
[  254.887031]  run_ksoftirqd+0x5e/0x100
[  254.890847]  smpboot_thread_fn+0x68b/0xa00
[  254.895091]  ? sort_range+0x30/0x30
[  254.898723]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  254.903826]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.909362]  ? __kthread_parkme+0xfb/0x1a0
[  254.913599]  ? sort_range+0x30/0x30
[  254.917274]  kthread+0x35a/0x440
[  254.920641]  ? kthread_stop+0x900/0x900
[  254.924613]  ret_from_fork+0x3a/0x50
[  254.928378] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  254.928384] warn_alloc_show_mem: 1 callbacks suppressed
[  254.928397] Mem-Info:
[  254.935323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  254.940690] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  254.940690]  active_file:12 inactive_file:14 isolated_file:0
[  254.940690]  unevictable:0 dirty:0 writeback:0 unstable:0
[  254.940690]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  254.940690]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  254.940690]  free:13757 free_pcp:113 free_cma:0
[  254.943067] Call Trace:
[  254.952453] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  254.985479]  <IRQ>
[  254.988048] 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
[  255.015898]  dump_stack+0x244/0x39d
[  255.018023] lowmem_reserve[]: 0 2818 6321 6321
[  255.044131]  ? dump_stack_print_info.cold.1+0x20/0x20
[  255.047731] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  255.052339]  warn_alloc.cold.116+0xb7/0x1bd
[  255.057497] lowmem_reserve[]: 0 0 3503 3503
[  255.084993]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  255.089289] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  255.093624]  ? lock_downgrade+0x900/0x900
[  255.098437] lowmem_reserve[]: 0 0 0 0
[  255.127496]  ? trace_hardirqs_off+0xb8/0x310
[  255.131619] 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
[  255.135422]  ? trace_hardirqs_off+0xb8/0x310
[  255.139802] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  255.153322]  __alloc_pages_slowpath+0x2651/0x2de0
[  255.157699] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  255.173231]  ? warn_alloc+0x120/0x120
[  255.178032] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  255.192596]  ? print_usage_bug+0xc0/0xc0
[  255.196407] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  255.205227]  ? warn_alloc+0x120/0x120
[  255.209264] 4236 total pagecache pages
[  255.217835]  ? warn_alloc+0x120/0x120
[  255.221618] 0 pages in swap cache
[  255.225490]  ? print_usage_bug+0xc0/0xc0
[  255.229283] Swap cache stats: add 0, delete 0, find 0/0
[  255.232726]  ? kvm_clock_read+0x18/0x30
[  255.236763] Free swap  = 0kB
[  255.242116]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  255.246062] Total swap = 0kB
[  255.249070]  ? print_usage_bug+0xc0/0xc0
[  255.254063] 1965979 pages RAM
[  255.257072]  ? __lock_acquire+0x62f/0x4c20
[  255.261107] 0 pages HighMem/MovableOnly
[  255.264210]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.268420] 342854 pages reserved
[  255.272394]  ? should_fail+0x22d/0xd01
[  255.277925] 0 pages cma reserved
[  255.281374]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.285303] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  255.288612]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  255.293930] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  255.300355]  ? __lock_acquire+0x62f/0x4c20
[  255.305430] ksoftirqd/0 cpuset=/ mems_allowed=0
[  255.315731]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  255.329685]  ? __lock_acquire+0x62f/0x4c20
[  255.333919]  ? should_fail+0x22d/0xd01
[  255.337801]  ? rcu_irq_exit+0x1a2/0x390
[  255.341782]  ? mark_held_locks+0x130/0x130
[  255.346021]  ? mark_held_locks+0x130/0x130
[  255.350261]  ? mark_held_locks+0xc7/0x130
[  255.354411]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  255.359425]  ? zap_class+0x640/0x640
[  255.363135]  ? print_usage_bug+0xc0/0xc0
[  255.367198]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.372761]  ? check_preemption_disabled+0x48/0x280
[  255.377786]  ? __lock_is_held+0xb5/0x140
[  255.381855]  __alloc_pages_nodemask+0xad8/0xea0
[  255.386534]  ? zap_class+0x640/0x640
[  255.390251]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  255.395281]  ? find_held_lock+0x36/0x1c0
[  255.399350]  ? ____cache_alloc_node+0x1c7/0x1e0
[  255.404020]  ? lock_downgrade+0x900/0x900
[  255.408175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.413717]  cache_grow_begin+0xa5/0x8c0
[  255.417778]  ? do_raw_spin_unlock+0xa7/0x330
[  255.422212]  fallback_alloc+0x204/0x2e0
[  255.426205]  ____cache_alloc_node+0x1c7/0x1e0
[  255.430725]  kmem_cache_alloc_node+0xe3/0x730
[  255.435217]  ? ipv6_get_ifaddr+0x42e/0x620
[  255.439477]  __alloc_skb+0x119/0x770
[  255.443203]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.448481]  ? netdev_alloc_frag+0x1f0/0x1f0
[  255.452898]  ? lock_downgrade+0x900/0x900
[  255.457053]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.462593]  ? refcount_sub_and_test_checked+0x203/0x310
[  255.468044]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  255.473496]  ? addrconf_rs_timer+0x690/0x690
[  255.477921]  ndisc_alloc_skb+0x144/0x340
[  255.481986]  ndisc_send_rs+0x331/0x6e0
[  255.485884]  addrconf_rs_timer+0x314/0x690
[  255.490124]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.494367]  call_timer_fn+0x272/0x920
[  255.498259]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.502490]  ? process_timeout+0x40/0x40
[  255.506558]  ? mark_held_locks+0xc7/0x130
[  255.510723]  ? _raw_spin_unlock_irq+0x27/0x80
[  255.515215]  ? _raw_spin_unlock_irq+0x27/0x80
[  255.519708]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.523945]  ? lockdep_hardirqs_on+0x296/0x5b0
[  255.528548]  ? trace_hardirqs_on+0xbd/0x310
[  255.532865]  ? kasan_check_read+0x11/0x20
[  255.537037]  ? __run_timers+0x7da/0xc70
[  255.541019]  ? trace_hardirqs_off_caller+0x310/0x310
[  255.546125]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.550379]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.554615]  __run_timers+0x7e5/0xc70
[  255.558427]  ? timer_fixup_init+0x70/0x70
[  255.562578]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  255.567594]  ? zap_class+0x640/0x640
[  255.571309]  ? print_usage_bug+0xc0/0xc0
[  255.575381]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  255.580597]  ? find_held_lock+0x36/0x1c0
[  255.584661]  ? zap_class+0x640/0x640
[  255.588426]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.593964]  ? check_preemption_disabled+0x48/0x280
[  255.599006]  ? __lock_is_held+0xb5/0x140
[  255.603085]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.608626]  ? check_preemption_disabled+0x48/0x280
[  255.613648]  run_timer_softirq+0x52/0xb0
[  255.617710]  ? rcu_read_lock_sched_held+0x14f/0x180
[  255.622724]  __do_softirq+0x308/0xb7e
[  255.626524]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  255.631014]  ? lock_downgrade+0x900/0x900
[  255.635166]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  255.640275]  ? pvclock_read_flags+0x160/0x160
[  255.644771]  ? lapic_next_event+0x5a/0x90
[  255.648925]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.654465]  ? kvm_clock_read+0x18/0x30
[  255.658438]  ? kvm_sched_clock_read+0x9/0x20
[  255.662845]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.668396]  ? check_preemption_disabled+0x48/0x280
[  255.673423]  irq_exit+0x17f/0x1c0
[  255.676888]  smp_apic_timer_interrupt+0x1cb/0x760
[  255.681736]  ? smp_call_function_single_interrupt+0x159/0x650
[  255.687625]  ? smp_call_function_single_interrupt+0x650/0x650
[  255.693505]  ? interrupt_entry+0xb5/0xc0
[  255.697568]  ? trace_hardirqs_off_caller+0xbb/0x310
[  255.702578]  ? trace_hardirqs_off_caller+0xbb/0x310
[  255.707593]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  255.712435]  ? trace_hardirqs_on_caller+0x310/0x310
[  255.717451]  ? trace_hardirqs_on_caller+0x310/0x310
[  255.722464]  ? task_prio+0x50/0x50
[  255.726021]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.731577]  ? check_preemption_disabled+0x48/0x280
[  255.736598]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  255.741466]  apic_timer_interrupt+0xf/0x20
[  255.745691]  </IRQ>
[  255.747927] RIP: 0010:dump_stack+0x358/0x39d
[  255.752352] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  255.771248] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  255.778955] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  255.786239] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  255.793522] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  255.800785] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  255.808049] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  255.815339]  ? dump_stack+0x34f/0x39d
[  255.819150]  ? dump_stack_print_info.cold.1+0x20/0x20
[  255.824341]  ? mark_held_locks+0x130/0x130
[  255.828591]  ? mark_held_locks+0x130/0x130
[  255.832828]  dump_header+0x27b/0xf72
[  255.836558]  ? pagefault_out_of_memory+0x197/0x197
[  255.841493]  ? __lock_acquire+0x62f/0x4c20
[  255.845731]  ? percpu_ref_get_many+0x240/0x240
[  255.850319]  ? print_usage_bug+0xc0/0xc0
[  255.854385]  ? zap_class+0x640/0x640
[  255.858126]  ? print_usage_bug+0xc0/0xc0
[  255.862202]  ? print_usage_bug+0xc0/0xc0
[  255.866262]  ? zap_class+0x640/0x640
[  255.869980]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.875524]  ? find_held_lock+0x36/0x1c0
[  255.879594]  ? mark_held_locks+0xc7/0x130
[  255.883743]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  255.888846]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  255.893970]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  255.898579]  ? trace_hardirqs_on+0xbd/0x310
[  255.902921]  ? kasan_check_read+0x11/0x20
[  255.907082]  ? ___ratelimit+0x3b4/0x672
[  255.911061]  ? trace_hardirqs_off_caller+0x310/0x310
[  255.916180]  ? trace_hardirqs_on+0x310/0x310
[  255.920610]  ? lock_downgrade+0x900/0x900
[  255.924763]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  255.929863]  ? ___ratelimit+0x3b9/0x672
[  255.933862]  ? idr_get_free+0xf70/0xf70
[  255.937874]  ? find_held_lock+0x36/0x1c0
[  255.941958]  oom_kill_process.cold.27+0x10/0x903
[  255.946713]  ? zap_class+0x640/0x640
[  255.950433]  ? check_preemption_disabled+0x48/0x280
[  255.955454]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  255.960382]  ? kasan_check_read+0x11/0x20
[  255.964538]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.969817]  ? oom_evaluate_task+0x540/0x540
[  255.974228]  ? find_held_lock+0x36/0x1c0
[  255.978297]  ? out_of_memory+0x974/0x1430
[  255.982464]  ? lock_downgrade+0x900/0x900
[  255.986624]  ? check_preemption_disabled+0x48/0x280
[  255.991661]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  255.996588]  ? kasan_check_read+0x11/0x20
[  256.000733]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.006020]  ? rcu_softirq_qs+0x20/0x20
[  256.009996]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.015531]  ? oom_evaluate_task+0x302/0x540
[  256.019945]  out_of_memory+0xa84/0x1430
[  256.023925]  ? oom_killer_disable+0x3a0/0x3a0
[  256.028424]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  256.033354]  ? __ww_mutex_check_waiters+0x160/0x160
[  256.038384]  __alloc_pages_slowpath+0x232c/0x2de0
[  256.043264]  ? warn_alloc+0x120/0x120
[  256.047068]  ? mark_held_locks+0x130/0x130
[  256.051312]  ? find_get_entry+0xaae/0x1120
[  256.055583]  ? filemap_map_pages+0x1a20/0x1a20
[  256.060169]  ? zap_class+0x640/0x640
[  256.063908]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.069466]  ? check_preemption_disabled+0x48/0x280
[  256.074484]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.080020]  ? should_fail+0x22d/0xd01
[  256.083922]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  256.089029]  ? zap_class+0x640/0x640
[  256.092765]  ? __lock_is_held+0xb5/0x140
[  256.096836]  ? mark_held_locks+0x130/0x130
[  256.101075]  ? lock_release+0xa00/0xa00
[  256.105063]  ? perf_trace_sched_process_exec+0x860/0x860
[  256.110525]  ? xa_load+0x2ba/0x460
[  256.114068]  ? lock_downgrade+0x900/0x900
[  256.118225]  ? __might_sleep+0x95/0x190
[  256.122206]  __alloc_pages_nodemask+0xad8/0xea0
[  256.126894]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  256.131927]  ? __page_cache_alloc+0x191/0x5c0
[  256.136423]  ? xa_load+0x2e1/0x460
[  256.139978]  ? xa_clear_mark+0x40/0x40
[  256.143875]  ? zap_class+0x640/0x640
[  256.147624]  ? zap_class+0x640/0x640
[  256.151335]  ? zap_class+0x640/0x640
[  256.155051]  ? __do_page_cache_readahead+0x663/0x810
[  256.160162]  ? find_held_lock+0x36/0x1c0
[  256.164246]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  256.169790]  alloc_pages_current+0x173/0x350
[  256.174207]  __page_cache_alloc+0x38c/0x5c0
[  256.178558]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  256.183484]  ? kasan_check_read+0x11/0x20
[  256.187644]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.192923]  ? generic_perform_write+0x6a0/0x6a0
[  256.197710]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.203247]  ? check_preemption_disabled+0x48/0x280
[  256.208269]  filemap_fault+0x1595/0x25f0
[  256.212367]  ? __lock_page_or_retry+0xa00/0xa00
[  256.217058]  ? mark_held_locks+0x130/0x130
[  256.221303]  ? filemap_map_pages+0xd6b/0x1a20
[  256.225814]  ? lock_downgrade+0x900/0x900
[  256.229960]  ? check_preemption_disabled+0x48/0x280
[  256.234979]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  256.239915]  ? kasan_check_read+0x11/0x20
[  256.244061]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.249338]  ? rcu_softirq_qs+0x20/0x20
[  256.253360]  ? filemap_map_pages+0xd92/0x1a20
[  256.257884]  ? find_get_entries_tag+0x1400/0x1400
[  256.262729]  ? debug_object_destroy+0x2b0/0x2b0
[  256.267407]  ? lock_pi_update_atomic+0x150/0x150
[  256.272179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.277759]  ? lock_acquire+0x1ed/0x520
[  256.281741]  ? ext4_filemap_fault+0x7a/0xad
[  256.286068]  ? lock_release+0xa00/0xa00
[  256.290042]  ? perf_trace_sched_process_exec+0x860/0x860
[  256.295490]  ? print_usage_bug+0xc0/0xc0
[  256.299555]  ? print_usage_bug+0xc0/0xc0
[  256.303628]  ? down_read+0x8d/0x120
[  256.307258]  ? ext4_filemap_fault+0x7a/0xad
[  256.311582]  ? __down_interruptible+0x700/0x700
[  256.316265]  ext4_filemap_fault+0x82/0xad
[  256.320420]  __do_fault+0x100/0x6b0
[  256.324050]  ? find_held_lock+0x36/0x1c0
[  256.328115]  ? pmd_devmap_trans_unstable+0x220/0x220
[  256.333223]  ? mark_held_locks+0x130/0x130
[  256.337474]  ? mark_held_locks+0x130/0x130
[  256.341705]  ? _raw_spin_unlock_irq+0x27/0x80
[  256.346206]  ? _raw_spin_unlock_irq+0x27/0x80
[  256.350703]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  256.355287]  ? kasan_check_read+0x11/0x20
[  256.359437]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.364988]  __handle_mm_fault+0x3ea0/0x5be0
[  256.369413]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  256.374260]  ? finish_task_switch+0x1f4/0x910
[  256.378762]  ? finish_task_switch+0x1b4/0x910
[  256.383254]  ? __switch_to_asm+0x34/0x70
[  256.387325]  ? preempt_notifier_register+0x200/0x200
[  256.392422]  ? __switch_to_asm+0x34/0x70
[  256.396478]  ? __switch_to_asm+0x34/0x70
[  256.400566]  ? zap_class+0x640/0x640
[  256.404292]  ? zap_class+0x640/0x640
[  256.408015]  ? __x64_sys_futex+0x53e/0x6a0
[  256.412251]  ? find_held_lock+0x36/0x1c0
[  256.416323]  ? handle_mm_fault+0x42a/0xc70
[  256.420563]  ? lock_downgrade+0x900/0x900
[  256.424714]  ? check_preemption_disabled+0x48/0x280
[  256.429732]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  256.434851]  ? kasan_check_read+0x11/0x20
[  256.439056]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.444351]  ? rcu_softirq_qs+0x20/0x20
[  256.448338]  ? trace_hardirqs_off_caller+0x310/0x310
[  256.453458]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.458992]  ? check_preemption_disabled+0x48/0x280
[  256.467055]  handle_mm_fault+0x54f/0xc70
[  256.471119]  ? __handle_mm_fault+0x5be0/0x5be0
[  256.475703]  ? find_vma+0x34/0x190
[  256.479264]  __do_page_fault+0x5e8/0xe60
[  256.483323]  ? trace_hardirqs_off+0xb8/0x310
[  256.487742]  do_page_fault+0xf2/0x7e0
[  256.491545]  ? vmalloc_sync_all+0x30/0x30
[  256.495722]  ? error_entry+0x70/0xd0
[  256.499477]  ? trace_hardirqs_off_caller+0xbb/0x310
[  256.504488]  ? trace_hardirqs_on_caller+0xc0/0x310
[  256.509416]  ? syscall_return_slowpath+0x5e0/0x5e0
[  256.514340]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.519208]  ? trace_hardirqs_on_caller+0x310/0x310
[  256.524234]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  256.529692]  ? prepare_exit_to_usermode+0x291/0x3b0
[  256.534707]  ? page_fault+0x8/0x30
[  256.538267]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.543129]  ? page_fault+0x8/0x30
[  256.546683]  page_fault+0x1e/0x30
[  256.550146] RIP: 0033:0x40f9c0
[  256.553381] Code: Bad RIP value.
[  256.556746] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  256.562106] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  256.569875] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  256.577149] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  256.584414] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  256.591677] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  256.598972] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  256.599037] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  256.605717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  256.605722] Call Trace:
[  256.605743]  dump_stack+0x244/0x39d
[  256.605772]  ? dump_stack_print_info.cold.1+0x20/0x20
[  256.612303] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  256.621628]  warn_alloc.cold.116+0xb7/0x1bd
[  256.624184] syz-fuzzer cpuset=/ mems_allowed=0
[  256.627807]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  256.656896]  ? lock_downgrade+0x900/0x900
[  256.661059]  ? trace_hardirqs_off+0xb8/0x310
[  256.665473]  ? trace_hardirqs_off+0xb8/0x310
[  256.669905]  __alloc_pages_slowpath+0x2651/0x2de0
[  256.674780]  ? warn_alloc+0x120/0x120
[  256.678581]  ? print_usage_bug+0xc0/0xc0
[  256.682645]  ? warn_alloc+0x120/0x120
[  256.686451]  ? warn_alloc+0x120/0x120
[  256.690251]  ? print_usage_bug+0xc0/0xc0
[  256.694350]  ? print_usage_bug+0xc0/0xc0
[  256.698427]  ? __lock_acquire+0x62f/0x4c20
[  256.702666]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.708201]  ? should_fail+0x22d/0xd01
[  256.712110]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  256.717215]  ? __lock_acquire+0x62f/0x4c20
[  256.721453]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  256.726556]  ? __lock_acquire+0x62f/0x4c20
[  256.730789]  ? should_fail+0x22d/0xd01
[  256.734679]  ? find_held_lock+0x36/0x1c0
[  256.738746]  ? mark_held_locks+0x130/0x130
[  256.742987]  ? mark_held_locks+0x130/0x130
[  256.747219]  ? zap_class+0x640/0x640
[  256.750947]  ? zap_class+0x640/0x640
[  256.754677]  ? print_usage_bug+0xc0/0xc0
[  256.758734]  ? do_raw_spin_unlock+0xa7/0x330
[  256.763144]  ? zap_class+0x640/0x640
[  256.766860]  ? print_usage_bug+0xc0/0xc0
[  256.770932]  ? wq_watchdog_touch+0x9c/0xfe
[  256.775170]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.780714]  ? check_preemption_disabled+0x48/0x280
[  256.785736]  ? __lock_is_held+0xb5/0x140
[  256.789804]  __alloc_pages_nodemask+0xad8/0xea0
[  256.794473]  ? zap_class+0x640/0x640
[  256.798194]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  256.803221]  ? find_held_lock+0x36/0x1c0
[  256.807306]  ? ____cache_alloc_node+0x1c7/0x1e0
[  256.812012]  ? lock_downgrade+0x900/0x900
[  256.816172]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.821715]  cache_grow_begin+0xa5/0x8c0
[  256.825775]  ? do_raw_spin_unlock+0xa7/0x330
[  256.830190]  fallback_alloc+0x204/0x2e0
[  256.834174]  ____cache_alloc_node+0x1c7/0x1e0
[  256.838674]  kmem_cache_alloc_node+0xe3/0x730
[  256.843168]  ? ipv6_get_ifaddr+0x42e/0x620
[  256.847413]  __alloc_skb+0x119/0x770
[  256.851128]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.856411]  ? netdev_alloc_frag+0x1f0/0x1f0
[  256.860818]  ? lock_downgrade+0x900/0x900
[  256.864975]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.870513]  ? refcount_sub_and_test_checked+0x203/0x310
[  256.875971]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  256.881420]  ? addrconf_rs_timer+0x690/0x690
[  256.885843]  ndisc_alloc_skb+0x144/0x340
[  256.889921]  ndisc_send_rs+0x331/0x6e0
[  256.893814]  addrconf_rs_timer+0x314/0x690
[  256.898058]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.902302]  call_timer_fn+0x272/0x920
[  256.906203]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.910442]  ? process_timeout+0x40/0x40
[  256.914513]  ? __run_timers+0x7da/0xc70
[  256.918489]  ? _raw_spin_unlock_irq+0x27/0x80
[  256.922983]  ? _raw_spin_unlock_irq+0x27/0x80
[  256.927478]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.931715]  ? lockdep_hardirqs_on+0x296/0x5b0
[  256.936297]  ? trace_hardirqs_on+0xbd/0x310
[  256.940618]  ? kasan_check_read+0x11/0x20
[  256.944767]  ? __run_timers+0x7da/0xc70
[  256.948744]  ? trace_hardirqs_off_caller+0x310/0x310
[  256.953850]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.958104]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.962334]  __run_timers+0x7e5/0xc70
[  256.966143]  ? timer_fixup_init+0x70/0x70
[  256.970288]  ? _raw_spin_unlock_irq+0x27/0x80
[  256.974785]  ? _raw_spin_unlock_irq+0x27/0x80
[  256.979280]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  256.983864]  ? trace_hardirqs_on+0xbd/0x310
[  256.988194]  ? kasan_check_read+0x11/0x20
[  256.992343]  ? finish_task_switch+0x1f4/0x910
[  256.996840]  ? trace_hardirqs_off_caller+0x310/0x310
[  257.001979]  ? compat_start_thread+0x80/0x80
[  257.006404]  ? pvclock_read_flags+0x160/0x160
[  257.010908]  ? __switch_to_asm+0x34/0x70
[  257.014974]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.020511]  ? check_preemption_disabled+0x48/0x280
[  257.025533]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  257.031073]  ? rcu_pm_notify+0xc0/0xc0
[  257.034959]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.040494]  ? check_preemption_disabled+0x48/0x280
[  257.045510]  run_timer_softirq+0x52/0xb0
[  257.049568]  ? rcu_read_lock_sched_held+0x14f/0x180
[  257.054586]  __do_softirq+0x308/0xb7e
[  257.058409]  ? trace_hardirqs_on_caller+0xc0/0x310
[  257.063373]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  257.068492]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  257.073944]  ? trace_hardirqs_on+0x310/0x310
[  257.078357]  ? schedule+0x108/0x460
[  257.081995]  ? trace_hardirqs_off+0xb8/0x310
[  257.086399]  ? smpboot_thread_fn+0x68b/0xa00
[  257.090809]  ? trace_hardirqs_on+0x310/0x310
[  257.095221]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.100774]  ? check_preemption_disabled+0x48/0x280
[  257.105791]  ? takeover_tasklets+0xa90/0xa90
[  257.110213]  run_ksoftirqd+0x5e/0x100
[  257.114016]  smpboot_thread_fn+0x68b/0xa00
[  257.118292]  ? sort_range+0x30/0x30
[  257.121919]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  257.127034]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.132575]  ? __kthread_parkme+0xfb/0x1a0
[  257.136829]  ? sort_range+0x30/0x30
[  257.140452]  kthread+0x35a/0x440
[  257.143843]  ? kthread_stop+0x900/0x900
[  257.147814]  ret_from_fork+0x3a/0x50
[  257.151550] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  257.151555] warn_alloc_show_mem: 1 callbacks suppressed
[  257.151562] Mem-Info:
[  257.158484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  257.163852] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  257.163852]  active_file:12 inactive_file:14 isolated_file:0
[  257.163852]  unevictable:0 dirty:0 writeback:0 unstable:0
[  257.163852]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  257.163852]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  257.163852]  free:13757 free_pcp:113 free_cma:0
[  257.166225] Call Trace:
[  257.175610] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  257.208715]  <IRQ>
[  257.211288] 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
[  257.239143]  dump_stack+0x244/0x39d
[  257.241267] lowmem_reserve[]: 0 2818 6321 6321
[  257.267375]  ? dump_stack_print_info.cold.1+0x20/0x20
[  257.270977] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  257.275559]  warn_alloc.cold.116+0xb7/0x1bd
[  257.280719] lowmem_reserve[]: 0 0 3503 3503
[  257.308211]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  257.312509] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  257.316838]  ? lock_downgrade+0x900/0x900
[  257.321650] lowmem_reserve[]: 0 0 0 0
[  257.350721]  ? trace_hardirqs_off+0xb8/0x310
[  257.354840] 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
[  257.358634]  ? trace_hardirqs_off+0xb8/0x310
[  257.363018] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  257.376538]  __alloc_pages_slowpath+0x2651/0x2de0
[  257.380916] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  257.396450]  ? warn_alloc+0x120/0x120
[  257.401251] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  257.415803]  ? print_usage_bug+0xc0/0xc0
[  257.419585] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  257.428406]  ? warn_alloc+0x120/0x120
[  257.432439] 4236 total pagecache pages
[  257.441020]  ? warn_alloc+0x120/0x120
[  257.444820] 0 pages in swap cache
[  257.448695]  ? print_usage_bug+0xc0/0xc0
[  257.452481] Swap cache stats: add 0, delete 0, find 0/0
[  257.455957]  ? print_usage_bug+0xc0/0xc0
[  257.460014] Free swap  = 0kB
[  257.465368]  ? __lock_acquire+0x62f/0x4c20
[  257.469402] Total swap = 0kB
[  257.472417]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.476621] 1965979 pages RAM
[  257.479634]  ? should_fail+0x22d/0xd01
[  257.485142] 0 pages HighMem/MovableOnly
[  257.488244]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  257.492108] 342854 pages reserved
[  257.496083]  ? __lock_acquire+0x62f/0x4c20
[  257.501172] 0 pages cma reserved
[  257.504617]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  257.508923] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  257.512208]  ? __lock_acquire+0x62f/0x4c20
[  257.512223]  ? should_fail+0x22d/0xd01
[  257.517415] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  257.524266]  ? find_held_lock+0x36/0x1c0
[  257.528494] ksoftirqd/0 cpuset=/ mems_allowed=0
[  257.532382]  ? mark_held_locks+0x130/0x130
[  257.555587]  ? mark_held_locks+0x130/0x130
[  257.559818]  ? zap_class+0x640/0x640
[  257.563534]  ? zap_class+0x640/0x640
[  257.567251]  ? print_usage_bug+0xc0/0xc0
[  257.571314]  ? do_raw_spin_unlock+0xa7/0x330
[  257.575718]  ? zap_class+0x640/0x640
[  257.579436]  ? print_usage_bug+0xc0/0xc0
[  257.583492]  ? wq_watchdog_touch+0x9c/0xfe
[  257.587729]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.593269]  ? check_preemption_disabled+0x48/0x280
[  257.598292]  ? __lock_is_held+0xb5/0x140
[  257.602357]  __alloc_pages_nodemask+0xad8/0xea0
[  257.607032]  ? zap_class+0x640/0x640
[  257.610766]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  257.615819]  ? find_held_lock+0x36/0x1c0
[  257.619900]  ? ____cache_alloc_node+0x1c7/0x1e0
[  257.624573]  ? lock_downgrade+0x900/0x900
[  257.628726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.634270]  cache_grow_begin+0xa5/0x8c0
[  257.638345]  ? do_raw_spin_unlock+0xa7/0x330
[  257.642762]  fallback_alloc+0x204/0x2e0
[  257.646746]  ____cache_alloc_node+0x1c7/0x1e0
[  257.651248]  kmem_cache_alloc_node+0xe3/0x730
[  257.655746]  ? ipv6_get_ifaddr+0x42e/0x620
[  257.660002]  __alloc_skb+0x119/0x770
[  257.663715]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.668995]  ? netdev_alloc_frag+0x1f0/0x1f0
[  257.673406]  ? lock_downgrade+0x900/0x900
[  257.677565]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.683104]  ? refcount_sub_and_test_checked+0x203/0x310
[  257.688564]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  257.694019]  ? addrconf_rs_timer+0x690/0x690
[  257.698444]  ndisc_alloc_skb+0x144/0x340
[  257.702509]  ndisc_send_rs+0x331/0x6e0
[  257.706409]  addrconf_rs_timer+0x314/0x690
[  257.710652]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.714946]  call_timer_fn+0x272/0x920
[  257.718852]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.723090]  ? process_timeout+0x40/0x40
[  257.727159]  ? mark_held_locks+0xc7/0x130
[  257.731307]  ? _raw_spin_unlock_irq+0x27/0x80
[  257.735799]  ? _raw_spin_unlock_irq+0x27/0x80
[  257.740378]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.744618]  ? lockdep_hardirqs_on+0x296/0x5b0
[  257.749204]  ? trace_hardirqs_on+0xbd/0x310
[  257.753526]  ? kasan_check_read+0x11/0x20
[  257.757727]  ? __run_timers+0x7da/0xc70
[  257.761732]  ? trace_hardirqs_off_caller+0x310/0x310
[  257.766843]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.771088]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.775321]  __run_timers+0x7e5/0xc70
[  257.779146]  ? timer_fixup_init+0x70/0x70
[  257.783311]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  257.788346]  ? zap_class+0x640/0x640
[  257.792083]  ? print_usage_bug+0xc0/0xc0
[  257.796153]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  257.801363]  ? find_held_lock+0x36/0x1c0
[  257.805429]  ? zap_class+0x640/0x640
[  257.809176]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.814731]  ? check_preemption_disabled+0x48/0x280
[  257.819758]  ? __lock_is_held+0xb5/0x140
[  257.823823]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.829362]  ? check_preemption_disabled+0x48/0x280
[  257.834387]  run_timer_softirq+0x52/0xb0
[  257.838457]  ? rcu_read_lock_sched_held+0x14f/0x180
[  257.843478]  __do_softirq+0x308/0xb7e
[  257.847282]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  257.851779]  ? lock_downgrade+0x900/0x900
[  257.855941]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  257.861066]  ? pvclock_read_flags+0x160/0x160
[  257.865574]  ? lapic_next_event+0x5a/0x90
[  257.869733]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.875270]  ? kvm_clock_read+0x18/0x30
[  257.879240]  ? kvm_sched_clock_read+0x9/0x20
[  257.883664]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.889199]  ? check_preemption_disabled+0x48/0x280
[  257.894226]  irq_exit+0x17f/0x1c0
[  257.897681]  smp_apic_timer_interrupt+0x1cb/0x760
[  257.902520]  ? smp_call_function_single_interrupt+0x159/0x650
[  257.908419]  ? smp_call_function_single_interrupt+0x650/0x650
[  257.914302]  ? interrupt_entry+0xb5/0xc0
[  257.918367]  ? trace_hardirqs_off_caller+0xbb/0x310
[  257.923394]  ? trace_hardirqs_off_caller+0xbb/0x310
[  257.928429]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.933270]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.938298]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.943327]  ? task_prio+0x50/0x50
[  257.946870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.952419]  ? check_preemption_disabled+0x48/0x280
[  257.957439]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.962286]  apic_timer_interrupt+0xf/0x20
[  257.966516]  </IRQ>
[  257.968759] RIP: 0010:dump_stack+0x358/0x39d
[  257.973181] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  257.992082] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  257.999790] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  258.007054] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  258.014320] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  258.021584] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  258.028848] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  258.036137]  ? dump_stack+0x34f/0x39d
[  258.039957]  ? dump_stack_print_info.cold.1+0x20/0x20
[  258.045165]  ? mark_held_locks+0x130/0x130
[  258.049406]  ? mark_held_locks+0x130/0x130
[  258.053644]  dump_header+0x27b/0xf72
[  258.057370]  ? pagefault_out_of_memory+0x197/0x197
[  258.062309]  ? __lock_acquire+0x62f/0x4c20
[  258.066545]  ? percpu_ref_get_many+0x240/0x240
[  258.071133]  ? print_usage_bug+0xc0/0xc0
[  258.075218]  ? zap_class+0x640/0x640
[  258.078948]  ? print_usage_bug+0xc0/0xc0
[  258.083006]  ? print_usage_bug+0xc0/0xc0
[  258.087070]  ? zap_class+0x640/0x640
[  258.090817]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.096371]  ? find_held_lock+0x36/0x1c0
[  258.100456]  ? mark_held_locks+0xc7/0x130
[  258.104601]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  258.109705]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  258.114806]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  258.119386]  ? trace_hardirqs_on+0xbd/0x310
[  258.123717]  ? kasan_check_read+0x11/0x20
[  258.127865]  ? ___ratelimit+0x3b4/0x672
[  258.131852]  ? trace_hardirqs_off_caller+0x310/0x310
[  258.136961]  ? trace_hardirqs_on+0x310/0x310
[  258.141373]  ? lock_downgrade+0x900/0x900
[  258.145548]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  258.150655]  ? ___ratelimit+0x3b9/0x672
[  258.154633]  ? idr_get_free+0xf70/0xf70
[  258.158612]  ? find_held_lock+0x36/0x1c0
[  258.162686]  oom_kill_process.cold.27+0x10/0x903
[  258.167443]  ? zap_class+0x640/0x640
[  258.171160]  ? check_preemption_disabled+0x48/0x280
[  258.176182]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.181113]  ? kasan_check_read+0x11/0x20
[  258.185258]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.190537]  ? oom_evaluate_task+0x540/0x540
[  258.194948]  ? find_held_lock+0x36/0x1c0
[  258.199021]  ? out_of_memory+0x974/0x1430
[  258.203173]  ? lock_downgrade+0x900/0x900
[  258.207323]  ? check_preemption_disabled+0x48/0x280
[  258.212341]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.217268]  ? kasan_check_read+0x11/0x20
[  258.221424]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.226697]  ? rcu_softirq_qs+0x20/0x20
[  258.230691]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.236229]  ? oom_evaluate_task+0x302/0x540
[  258.240658]  out_of_memory+0xa84/0x1430
[  258.244730]  ? oom_killer_disable+0x3a0/0x3a0
[  258.249226]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  258.254158]  ? __ww_mutex_check_waiters+0x160/0x160
[  258.259191]  __alloc_pages_slowpath+0x232c/0x2de0
[  258.264088]  ? warn_alloc+0x120/0x120
[  258.267896]  ? mark_held_locks+0x130/0x130
[  258.272141]  ? find_get_entry+0xaae/0x1120
[  258.276386]  ? filemap_map_pages+0x1a20/0x1a20
[  258.280976]  ? zap_class+0x640/0x640
[  258.284710]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.290246]  ? check_preemption_disabled+0x48/0x280
[  258.295260]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.300816]  ? should_fail+0x22d/0xd01
[  258.304704]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  258.309806]  ? zap_class+0x640/0x640
[  258.313546]  ? __lock_is_held+0xb5/0x140
[  258.317617]  ? mark_held_locks+0x130/0x130
[  258.321852]  ? lock_release+0xa00/0xa00
[  258.325836]  ? perf_trace_sched_process_exec+0x860/0x860
[  258.331286]  ? xa_load+0x2ba/0x460
[  258.334829]  ? lock_downgrade+0x900/0x900
[  258.338987]  ? __might_sleep+0x95/0x190
[  258.342995]  __alloc_pages_nodemask+0xad8/0xea0
[  258.347671]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  258.352685]  ? __page_cache_alloc+0x191/0x5c0
[  258.357190]  ? xa_load+0x2e1/0x460
[  258.360730]  ? xa_clear_mark+0x40/0x40
[  258.364645]  ? zap_class+0x640/0x640
[  258.368365]  ? zap_class+0x640/0x640
[  258.372080]  ? zap_class+0x640/0x640
[  258.375791]  ? __do_page_cache_readahead+0x663/0x810
[  258.380901]  ? find_held_lock+0x36/0x1c0
[  258.384963]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  258.390502]  alloc_pages_current+0x173/0x350
[  258.394935]  __page_cache_alloc+0x38c/0x5c0
[  258.399256]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.404204]  ? kasan_check_read+0x11/0x20
[  258.408354]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.413632]  ? generic_perform_write+0x6a0/0x6a0
[  258.418410]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.423947]  ? check_preemption_disabled+0x48/0x280
[  258.428967]  filemap_fault+0x1595/0x25f0
[  258.433224]  ? __lock_page_or_retry+0xa00/0xa00
[  258.437950]  ? mark_held_locks+0x130/0x130
[  258.442197]  ? filemap_map_pages+0xd6b/0x1a20
[  258.446694]  ? lock_downgrade+0x900/0x900
[  258.450838]  ? check_preemption_disabled+0x48/0x280
[  258.455895]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.460823]  ? kasan_check_read+0x11/0x20
[  258.464963]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.470275]  ? rcu_softirq_qs+0x20/0x20
[  258.474279]  ? filemap_map_pages+0xd92/0x1a20
[  258.478784]  ? find_get_entries_tag+0x1400/0x1400
[  258.483632]  ? debug_object_destroy+0x2b0/0x2b0
[  258.488305]  ? lock_pi_update_atomic+0x150/0x150
[  258.493072]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.498618]  ? lock_acquire+0x1ed/0x520
[  258.502593]  ? ext4_filemap_fault+0x7a/0xad
[  258.506954]  ? lock_release+0xa00/0xa00
[  258.510939]  ? perf_trace_sched_process_exec+0x860/0x860
[  258.516408]  ? print_usage_bug+0xc0/0xc0
[  258.520471]  ? print_usage_bug+0xc0/0xc0
[  258.524541]  ? down_read+0x8d/0x120
[  258.528167]  ? ext4_filemap_fault+0x7a/0xad
[  258.532487]  ? __down_interruptible+0x700/0x700
[  258.537161]  ext4_filemap_fault+0x82/0xad
[  258.541307]  __do_fault+0x100/0x6b0
[  258.544936]  ? find_held_lock+0x36/0x1c0
[  258.548999]  ? pmd_devmap_trans_unstable+0x220/0x220
[  258.554101]  ? mark_held_locks+0x130/0x130
[  258.558349]  ? mark_held_locks+0x130/0x130
[  258.562587]  ? _raw_spin_unlock_irq+0x27/0x80
[  258.567553]  ? _raw_spin_unlock_irq+0x27/0x80
[  258.572048]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  258.576633]  ? kasan_check_read+0x11/0x20
[  258.580785]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.586325]  __handle_mm_fault+0x3ea0/0x5be0
[  258.590761]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  258.595603]  ? finish_task_switch+0x1f4/0x910
[  258.600100]  ? finish_task_switch+0x1b4/0x910
[  258.604593]  ? __switch_to_asm+0x34/0x70
[  258.608662]  ? preempt_notifier_register+0x200/0x200
[  258.613759]  ? __switch_to_asm+0x34/0x70
[  258.617814]  ? __switch_to_asm+0x34/0x70
[  258.621892]  ? zap_class+0x640/0x640
[  258.625609]  ? zap_class+0x640/0x640
[  258.629317]  ? __x64_sys_futex+0x53e/0x6a0
[  258.633554]  ? find_held_lock+0x36/0x1c0
[  258.637622]  ? handle_mm_fault+0x42a/0xc70
[  258.641873]  ? lock_downgrade+0x900/0x900
[  258.646027]  ? check_preemption_disabled+0x48/0x280
[  258.651066]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.656025]  ? kasan_check_read+0x11/0x20
[  258.660185]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.665458]  ? rcu_softirq_qs+0x20/0x20
[  258.669453]  ? trace_hardirqs_off_caller+0x310/0x310
[  258.674559]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.680096]  ? check_preemption_disabled+0x48/0x280
[  258.685131]  handle_mm_fault+0x54f/0xc70
[  258.689199]  ? __handle_mm_fault+0x5be0/0x5be0
[  258.693803]  ? find_vma+0x34/0x190
[  258.697346]  __do_page_fault+0x5e8/0xe60
[  258.701410]  ? trace_hardirqs_off+0xb8/0x310
[  258.705832]  do_page_fault+0xf2/0x7e0
[  258.709637]  ? vmalloc_sync_all+0x30/0x30
[  258.713785]  ? error_entry+0x70/0xd0
[  258.717500]  ? trace_hardirqs_off_caller+0xbb/0x310
[  258.722514]  ? trace_hardirqs_on_caller+0xc0/0x310
[  258.727442]  ? syscall_return_slowpath+0x5e0/0x5e0
[  258.732372]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.737221]  ? trace_hardirqs_on_caller+0x310/0x310
[  258.742240]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  258.747698]  ? prepare_exit_to_usermode+0x291/0x3b0
[  258.752711]  ? page_fault+0x8/0x30
[  258.756252]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.761094]  ? page_fault+0x8/0x30
[  258.764637]  page_fault+0x1e/0x30
[  258.768086] RIP: 0033:0x40f9c0
[  258.771291] Code: Bad RIP value.
[  258.774655] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  258.780015] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  258.787284] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  258.794562] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  258.801829] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  258.809109] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  258.816462] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  258.816543] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  258.823228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  258.823237] Call Trace:
[  258.829796] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  258.839062]  dump_stack+0x244/0x39d
[  258.841619] syz-fuzzer cpuset=/ mems_allowed=0
[  258.851835]  ? dump_stack_print_info.cold.1+0x20/0x20
[  258.865219]  warn_alloc.cold.116+0xb7/0x1bd
[  258.869542]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  258.874387]  ? lock_downgrade+0x900/0x900
[  258.878572]  ? trace_hardirqs_off+0xb8/0x310
[  258.882989]  ? trace_hardirqs_off+0xb8/0x310
[  258.887405]  __alloc_pages_slowpath+0x2651/0x2de0
[  258.892277]  ? warn_alloc+0x120/0x120
[  258.896080]  ? print_usage_bug+0xc0/0xc0
[  258.900144]  ? warn_alloc+0x120/0x120
[  258.903953]  ? warn_alloc+0x120/0x120
[  258.907753]  ? print_usage_bug+0xc0/0xc0
[  258.911815]  ? print_usage_bug+0xc0/0xc0
[  258.915892]  ? __lock_acquire+0x62f/0x4c20
[  258.920132]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.925742]  ? should_fail+0x22d/0xd01
[  258.929651]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  258.934785]  ? __lock_acquire+0x62f/0x4c20
[  258.939036]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  258.944136]  ? __lock_acquire+0x62f/0x4c20
[  258.948365]  ? should_fail+0x22d/0xd01
[  258.952253]  ? find_held_lock+0x36/0x1c0
[  258.956317]  ? mark_held_locks+0x130/0x130
[  258.960551]  ? mark_held_locks+0x130/0x130
[  258.964781]  ? zap_class+0x640/0x640
[  258.968501]  ? mark_held_locks+0xc7/0x130
[  258.972659]  ? do_raw_spin_unlock+0xa7/0x330
[  258.977064]  ? zap_class+0x640/0x640
[  258.980777]  ? print_usage_bug+0xc0/0xc0
[  258.984855]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.990407]  ? check_preemption_disabled+0x48/0x280
[  258.995440]  ? __lock_is_held+0xb5/0x140
[  258.999509]  __alloc_pages_nodemask+0xad8/0xea0
[  259.004181]  ? zap_class+0x640/0x640
[  259.007911]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  259.012947]  ? find_held_lock+0x36/0x1c0
[  259.017023]  ? ____cache_alloc_node+0x1c7/0x1e0
[  259.021702]  ? lock_downgrade+0x900/0x900
[  259.025866]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.031428]  cache_grow_begin+0xa5/0x8c0
[  259.035489]  ? do_raw_spin_unlock+0xa7/0x330
[  259.039913]  fallback_alloc+0x204/0x2e0
[  259.043905]  ____cache_alloc_node+0x1c7/0x1e0
[  259.048409]  kmem_cache_alloc_node+0xe3/0x730
[  259.052931]  ? ipv6_get_ifaddr+0x42e/0x620
[  259.057201]  __alloc_skb+0x119/0x770
[  259.060926]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.066204]  ? netdev_alloc_frag+0x1f0/0x1f0
[  259.070608]  ? lock_downgrade+0x900/0x900
[  259.074770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.080311]  ? refcount_sub_and_test_checked+0x203/0x310
[  259.085761]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  259.091206]  ? addrconf_rs_timer+0x690/0x690
[  259.095622]  ndisc_alloc_skb+0x144/0x340
[  259.099684]  ndisc_send_rs+0x331/0x6e0
[  259.103574]  addrconf_rs_timer+0x314/0x690
[  259.107828]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.112097]  call_timer_fn+0x272/0x920
[  259.115985]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.120221]  ? process_timeout+0x40/0x40
[  259.124288]  ? __run_timers+0x7da/0xc70
[  259.128262]  ? _raw_spin_unlock_irq+0x27/0x80
[  259.132753]  ? _raw_spin_unlock_irq+0x27/0x80
[  259.137245]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.141481]  ? lockdep_hardirqs_on+0x296/0x5b0
[  259.146060]  ? trace_hardirqs_on+0xbd/0x310
[  259.150387]  ? kasan_check_read+0x11/0x20
[  259.154543]  ? __run_timers+0x7da/0xc70
[  259.158515]  ? trace_hardirqs_off_caller+0x310/0x310
[  259.163620]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.167862]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.172106]  __run_timers+0x7e5/0xc70
[  259.175931]  ? timer_fixup_init+0x70/0x70
[  259.180076]  ? _raw_spin_unlock_irq+0x27/0x80
[  259.184570]  ? _raw_spin_unlock_irq+0x27/0x80
[  259.189086]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  259.193668]  ? trace_hardirqs_on+0xbd/0x310
[  259.198000]  ? kasan_check_read+0x11/0x20
[  259.202148]  ? finish_task_switch+0x1f4/0x910
[  259.206644]  ? trace_hardirqs_off_caller+0x310/0x310
[  259.211747]  ? compat_start_thread+0x80/0x80
[  259.216237]  ? pvclock_read_flags+0x160/0x160
[  259.220757]  ? __switch_to_asm+0x34/0x70
[  259.224821]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.230360]  ? check_preemption_disabled+0x48/0x280
[  259.235386]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  259.240956]  ? rcu_pm_notify+0xc0/0xc0
[  259.244862]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.250442]  ? check_preemption_disabled+0x48/0x280
[  259.255477]  run_timer_softirq+0x52/0xb0
[  259.259542]  ? rcu_read_lock_sched_held+0x14f/0x180
[  259.264581]  __do_softirq+0x308/0xb7e
[  259.268388]  ? trace_hardirqs_on_caller+0xc0/0x310
[  259.273321]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  259.278421]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  259.283870]  ? trace_hardirqs_on+0x310/0x310
[  259.288301]  ? schedule+0x108/0x460
[  259.291952]  ? trace_hardirqs_off+0xb8/0x310
[  259.296360]  ? smpboot_thread_fn+0x68b/0xa00
[  259.300768]  ? trace_hardirqs_on+0x310/0x310
[  259.305193]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  259.310734]  ? check_preemption_disabled+0x48/0x280
[  259.315750]  ? takeover_tasklets+0xa90/0xa90
[  259.320161]  run_ksoftirqd+0x5e/0x100
[  259.323964]  smpboot_thread_fn+0x68b/0xa00
[  259.328200]  ? sort_range+0x30/0x30
[  259.331831]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  259.336937]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  259.342474]  ? __kthread_parkme+0xfb/0x1a0
[  259.346711]  ? sort_range+0x30/0x30
[  259.350338]  kthread+0x35a/0x440
[  259.353706]  ? kthread_stop+0x900/0x900
[  259.357684]  ret_from_fork+0x3a/0x50
[  259.361416] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  259.361421] warn_alloc_show_mem: 1 callbacks suppressed
[  259.361428] Mem-Info:
[  259.368399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  259.373782] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  259.373782]  active_file:12 inactive_file:14 isolated_file:0
[  259.373782]  unevictable:0 dirty:0 writeback:0 unstable:0
[  259.373782]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  259.373782]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  259.373782]  free:13757 free_pcp:113 free_cma:0
[  259.376151] Call Trace:
[  259.385536] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  259.418551]  <IRQ>
[  259.421119] 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
[  259.448958]  dump_stack+0x244/0x39d
[  259.451084] lowmem_reserve[]: 0 2818 6321 6321
[  259.477196]  ? dump_stack_print_info.cold.1+0x20/0x20
[  259.480793] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  259.485394]  warn_alloc.cold.116+0xb7/0x1bd
[  259.490555] lowmem_reserve[]: 0 0 3503 3503
[  259.518057]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  259.522353] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  259.526664]  ? lock_downgrade+0x900/0x900
[  259.531472] lowmem_reserve[]: 0 0 0 0
[  259.560534]  ? trace_hardirqs_off+0xb8/0x310
[  259.564654] 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
[  259.568448]  ? trace_hardirqs_off+0xb8/0x310
[  259.572826] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  259.586345]  __alloc_pages_slowpath+0x2651/0x2de0
[  259.590727] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  259.606261]  ? warn_alloc+0x120/0x120
[  259.611064] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  259.625614]  ? print_usage_bug+0xc0/0xc0
[  259.629400] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  259.629408] 4236 total pagecache pages
[  259.638252]  ? warn_alloc+0x120/0x120
[  259.642317] 0 pages in swap cache
[  259.650911]  ? warn_alloc+0x120/0x120
[  259.654778] Swap cache stats: add 0, delete 0, find 0/0
[  259.658582]  ? print_usage_bug+0xc0/0xc0
[  259.662007] Free swap  = 0kB
[  259.665816]  ? kvm_clock_read+0x18/0x30
[  259.671156] Total swap = 0kB
[  259.675211]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  259.678227] 1965979 pages RAM
[  259.682207]  ? print_usage_bug+0xc0/0xc0
[  259.685193] 0 pages HighMem/MovableOnly
[  259.685201] 342854 pages reserved
[  259.690213]  ? __lock_acquire+0x62f/0x4c20
[  259.693294] 0 pages cma reserved
[  259.697348]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  259.701378] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  259.704735]  ? should_fail+0x22d/0xd01
[  259.704748]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.704766]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  259.709038] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  259.712361]  ? __lock_acquire+0x62f/0x4c20
[  259.717872] ksoftirqd/0 cpuset=/ mems_allowed=0
[  259.724363]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  259.762827]  ? __lock_acquire+0x62f/0x4c20
[  259.767071]  ? should_fail+0x22d/0xd01
[  259.770959]  ? rcu_irq_exit+0x1a2/0x390
[  259.774942]  ? mark_held_locks+0x130/0x130
[  259.779181]  ? mark_held_locks+0x130/0x130
[  259.783440]  ? mark_held_locks+0xc7/0x130
[  259.787589]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  259.792602]  ? zap_class+0x640/0x640
[  259.796313]  ? print_usage_bug+0xc0/0xc0
[  259.800399]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.805934]  ? check_preemption_disabled+0x48/0x280
[  259.810962]  ? __lock_is_held+0xb5/0x140
[  259.815031]  __alloc_pages_nodemask+0xad8/0xea0
[  259.819698]  ? zap_class+0x640/0x640
[  259.823428]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  259.828455]  ? find_held_lock+0x36/0x1c0
[  259.832526]  ? ____cache_alloc_node+0x1c7/0x1e0
[  259.837193]  ? lock_downgrade+0x900/0x900
[  259.841348]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.846896]  cache_grow_begin+0xa5/0x8c0
[  259.850957]  ? do_raw_spin_unlock+0xa7/0x330
[  259.855387]  fallback_alloc+0x204/0x2e0
[  259.859405]  ____cache_alloc_node+0x1c7/0x1e0
[  259.863914]  kmem_cache_alloc_node+0xe3/0x730
[  259.868422]  ? ipv6_get_ifaddr+0x42e/0x620
[  259.872664]  __alloc_skb+0x119/0x770
[  259.876375]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.881661]  ? netdev_alloc_frag+0x1f0/0x1f0
[  259.886066]  ? lock_downgrade+0x900/0x900
[  259.890228]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.895780]  ? refcount_sub_and_test_checked+0x203/0x310
[  259.901244]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  259.906692]  ? addrconf_rs_timer+0x690/0x690
[  259.911110]  ndisc_alloc_skb+0x144/0x340
[  259.915173]  ndisc_send_rs+0x331/0x6e0
[  259.919097]  addrconf_rs_timer+0x314/0x690
[  259.923336]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.927582]  call_timer_fn+0x272/0x920
[  259.931467]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.935703]  ? process_timeout+0x40/0x40
[  259.939774]  ? mark_held_locks+0xc7/0x130
[  259.943935]  ? _raw_spin_unlock_irq+0x27/0x80
[  259.948427]  ? _raw_spin_unlock_irq+0x27/0x80
[  259.952922]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.957155]  ? lockdep_hardirqs_on+0x296/0x5b0
[  259.961739]  ? trace_hardirqs_on+0xbd/0x310
[  259.966063]  ? kasan_check_read+0x11/0x20
[  259.970239]  ? __run_timers+0x7da/0xc70
[  259.974215]  ? trace_hardirqs_off_caller+0x310/0x310
[  259.979321]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.983561]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.987810]  __run_timers+0x7e5/0xc70
[  259.991637]  ? timer_fixup_init+0x70/0x70
[  259.995812]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  260.000827]  ? zap_class+0x640/0x640
[  260.004557]  ? print_usage_bug+0xc0/0xc0
[  260.008614]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  260.013807]  ? find_held_lock+0x36/0x1c0
[  260.017872]  ? zap_class+0x640/0x640
[  260.021597]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.027136]  ? check_preemption_disabled+0x48/0x280
[  260.032158]  ? __lock_is_held+0xb5/0x140
[  260.036249]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.041784]  ? check_preemption_disabled+0x48/0x280
[  260.046823]  run_timer_softirq+0x52/0xb0
[  260.050894]  ? rcu_read_lock_sched_held+0x14f/0x180
[  260.055928]  __do_softirq+0x308/0xb7e
[  260.059764]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  260.064261]  ? lock_downgrade+0x900/0x900
[  260.068414]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  260.073543]  ? pvclock_read_flags+0x160/0x160
[  260.078040]  ? lapic_next_event+0x5a/0x90
[  260.082192]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.087731]  ? kvm_clock_read+0x18/0x30
[  260.091707]  ? kvm_sched_clock_read+0x9/0x20
[  260.096122]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.101661]  ? check_preemption_disabled+0x48/0x280
[  260.106700]  irq_exit+0x17f/0x1c0
[  260.110154]  smp_apic_timer_interrupt+0x1cb/0x760
[  260.114996]  ? smp_call_function_single_interrupt+0x159/0x650
[  260.120889]  ? smp_call_function_single_interrupt+0x650/0x650
[  260.126774]  ? interrupt_entry+0xb5/0xc0
[  260.130841]  ? trace_hardirqs_off_caller+0xbb/0x310
[  260.135861]  ? trace_hardirqs_off_caller+0xbb/0x310
[  260.140912]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.145763]  ? trace_hardirqs_on_caller+0x310/0x310
[  260.150794]  ? trace_hardirqs_on_caller+0x310/0x310
[  260.155812]  ? task_prio+0x50/0x50
[  260.159354]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.164901]  ? check_preemption_disabled+0x48/0x280
[  260.169925]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.174774]  apic_timer_interrupt+0xf/0x20
[  260.179003]  </IRQ>
[  260.181257] RIP: 0010:dump_stack+0x358/0x39d
[  260.185706] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  260.204620] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  260.212341] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  260.219606] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  260.226868] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  260.234147] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  260.241414] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  260.248706]  ? dump_stack+0x34f/0x39d
[  260.252516]  ? dump_stack_print_info.cold.1+0x20/0x20
[  260.257706]  ? mark_held_locks+0x130/0x130
[  260.261941]  ? mark_held_locks+0x130/0x130
[  260.266179]  dump_header+0x27b/0xf72
[  260.269923]  ? pagefault_out_of_memory+0x197/0x197
[  260.274864]  ? __lock_acquire+0x62f/0x4c20
[  260.279106]  ? percpu_ref_get_many+0x240/0x240
[  260.283686]  ? print_usage_bug+0xc0/0xc0
[  260.287764]  ? zap_class+0x640/0x640
[  260.291476]  ? print_usage_bug+0xc0/0xc0
[  260.295565]  ? print_usage_bug+0xc0/0xc0
[  260.299663]  ? zap_class+0x640/0x640
[  260.303374]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.308922]  ? find_held_lock+0x36/0x1c0
[  260.313023]  ? mark_held_locks+0xc7/0x130
[  260.317204]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  260.322305]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  260.327411]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  260.331997]  ? trace_hardirqs_on+0xbd/0x310
[  260.336320]  ? kasan_check_read+0x11/0x20
[  260.340498]  ? ___ratelimit+0x3b4/0x672
[  260.344473]  ? trace_hardirqs_off_caller+0x310/0x310
[  260.349580]  ? trace_hardirqs_on+0x310/0x310
[  260.353987]  ? lock_downgrade+0x900/0x900
[  260.358136]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  260.363239]  ? ___ratelimit+0x3b9/0x672
[  260.367213]  ? idr_get_free+0xf70/0xf70
[  260.371183]  ? find_held_lock+0x36/0x1c0
[  260.375254]  oom_kill_process.cold.27+0x10/0x903
[  260.380007]  ? zap_class+0x640/0x640
[  260.383719]  ? check_preemption_disabled+0x48/0x280
[  260.388739]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.393677]  ? kasan_check_read+0x11/0x20
[  260.397834]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.403136]  ? oom_evaluate_task+0x540/0x540
[  260.407560]  ? find_held_lock+0x36/0x1c0
[  260.411644]  ? out_of_memory+0x974/0x1430
[  260.415794]  ? lock_downgrade+0x900/0x900
[  260.419945]  ? check_preemption_disabled+0x48/0x280
[  260.424966]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.429901]  ? kasan_check_read+0x11/0x20
[  260.434205]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.439479]  ? rcu_softirq_qs+0x20/0x20
[  260.443456]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.448989]  ? oom_evaluate_task+0x302/0x540
[  260.453405]  out_of_memory+0xa84/0x1430
[  260.457386]  ? oom_killer_disable+0x3a0/0x3a0
[  260.461894]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  260.466831]  ? __ww_mutex_check_waiters+0x160/0x160
[  260.471857]  __alloc_pages_slowpath+0x232c/0x2de0
[  260.476763]  ? warn_alloc+0x120/0x120
[  260.480579]  ? mark_held_locks+0x130/0x130
[  260.484834]  ? find_get_entry+0xaae/0x1120
[  260.489094]  ? filemap_map_pages+0x1a20/0x1a20
[  260.493678]  ? zap_class+0x640/0x640
[  260.497401]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.502960]  ? check_preemption_disabled+0x48/0x280
[  260.507978]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.513514]  ? should_fail+0x22d/0xd01
[  260.517407]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  260.522510]  ? zap_class+0x640/0x640
[  260.526246]  ? __lock_is_held+0xb5/0x140
[  260.530311]  ? mark_held_locks+0x130/0x130
[  260.534549]  ? lock_release+0xa00/0xa00
[  260.538522]  ? perf_trace_sched_process_exec+0x860/0x860
[  260.543969]  ? xa_load+0x2ba/0x460
[  260.547524]  ? lock_downgrade+0x900/0x900
[  260.551677]  ? __might_sleep+0x95/0x190
[  260.555667]  __alloc_pages_nodemask+0xad8/0xea0
[  260.560345]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  260.565842]  ? __page_cache_alloc+0x191/0x5c0
[  260.570338]  ? xa_load+0x2e1/0x460
[  260.573875]  ? xa_clear_mark+0x40/0x40
[  260.577774]  ? zap_class+0x640/0x640
[  260.581492]  ? zap_class+0x640/0x640
[  260.585201]  ? zap_class+0x640/0x640
[  260.588919]  ? __do_page_cache_readahead+0x663/0x810
[  260.594029]  ? find_held_lock+0x36/0x1c0
[  260.598120]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  260.603705]  alloc_pages_current+0x173/0x350
[  260.608116]  __page_cache_alloc+0x38c/0x5c0
[  260.612430]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.617352]  ? kasan_check_read+0x11/0x20
[  260.621495]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.626785]  ? generic_perform_write+0x6a0/0x6a0
[  260.631543]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.637080]  ? check_preemption_disabled+0x48/0x280
[  260.642107]  filemap_fault+0x1595/0x25f0
[  260.646195]  ? __lock_page_or_retry+0xa00/0xa00
[  260.650863]  ? mark_held_locks+0x130/0x130
[  260.655115]  ? filemap_map_pages+0xd6b/0x1a20
[  260.659616]  ? lock_downgrade+0x900/0x900
[  260.663780]  ? check_preemption_disabled+0x48/0x280
[  260.668797]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.673741]  ? kasan_check_read+0x11/0x20
[  260.677909]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.683187]  ? rcu_softirq_qs+0x20/0x20
[  260.687176]  ? filemap_map_pages+0xd92/0x1a20
[  260.691685]  ? find_get_entries_tag+0x1400/0x1400
[  260.696534]  ? debug_object_destroy+0x2b0/0x2b0
[  260.701217]  ? lock_pi_update_atomic+0x150/0x150
[  260.705972]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.711519]  ? lock_acquire+0x1ed/0x520
[  260.715495]  ? ext4_filemap_fault+0x7a/0xad
[  260.719835]  ? lock_release+0xa00/0xa00
[  260.723824]  ? perf_trace_sched_process_exec+0x860/0x860
[  260.729273]  ? print_usage_bug+0xc0/0xc0
[  260.733339]  ? print_usage_bug+0xc0/0xc0
[  260.737414]  ? down_read+0x8d/0x120
[  260.741042]  ? ext4_filemap_fault+0x7a/0xad
[  260.745363]  ? __down_interruptible+0x700/0x700
[  260.750059]  ext4_filemap_fault+0x82/0xad
[  260.754206]  __do_fault+0x100/0x6b0
[  260.757827]  ? find_held_lock+0x36/0x1c0
[  260.761900]  ? pmd_devmap_trans_unstable+0x220/0x220
[  260.767006]  ? mark_held_locks+0x130/0x130
[  260.771256]  ? mark_held_locks+0x130/0x130
[  260.775493]  ? _raw_spin_unlock_irq+0x27/0x80
[  260.779994]  ? _raw_spin_unlock_irq+0x27/0x80
[  260.784498]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  260.789082]  ? kasan_check_read+0x11/0x20
[  260.793229]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.798774]  __handle_mm_fault+0x3ea0/0x5be0
[  260.803193]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  260.808063]  ? finish_task_switch+0x1f4/0x910
[  260.812552]  ? finish_task_switch+0x1b4/0x910
[  260.817038]  ? __switch_to_asm+0x34/0x70
[  260.821098]  ? preempt_notifier_register+0x200/0x200
[  260.826193]  ? __switch_to_asm+0x34/0x70
[  260.830266]  ? __switch_to_asm+0x34/0x70
[  260.834342]  ? zap_class+0x640/0x640
[  260.838076]  ? zap_class+0x640/0x640
[  260.841786]  ? __x64_sys_futex+0x53e/0x6a0
[  260.846029]  ? find_held_lock+0x36/0x1c0
[  260.850102]  ? handle_mm_fault+0x42a/0xc70
[  260.854342]  ? lock_downgrade+0x900/0x900
[  260.858490]  ? check_preemption_disabled+0x48/0x280
[  260.863512]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.868441]  ? kasan_check_read+0x11/0x20
[  260.872589]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.877861]  ? rcu_softirq_qs+0x20/0x20
[  260.881841]  ? trace_hardirqs_off_caller+0x310/0x310
[  260.886946]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.892483]  ? check_preemption_disabled+0x48/0x280
[  260.897499]  handle_mm_fault+0x54f/0xc70
[  260.901562]  ? __handle_mm_fault+0x5be0/0x5be0
[  260.906160]  ? find_vma+0x34/0x190
[  260.909717]  __do_page_fault+0x5e8/0xe60
[  260.913777]  ? trace_hardirqs_off+0xb8/0x310
[  260.918208]  do_page_fault+0xf2/0x7e0
[  260.922007]  ? vmalloc_sync_all+0x30/0x30
[  260.926153]  ? error_entry+0x70/0xd0
[  260.929867]  ? trace_hardirqs_off_caller+0xbb/0x310
[  260.934894]  ? trace_hardirqs_on_caller+0xc0/0x310
[  260.939827]  ? syscall_return_slowpath+0x5e0/0x5e0
[  260.944751]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.949596]  ? trace_hardirqs_on_caller+0x310/0x310
[  260.954609]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  260.960061]  ? prepare_exit_to_usermode+0x291/0x3b0
[  260.965077]  ? page_fault+0x8/0x30
[  260.968620]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.973482]  ? page_fault+0x8/0x30
[  260.977017]  page_fault+0x1e/0x30
[  260.980479] RIP: 0033:0x40f9c0
[  260.983679] Code: Bad RIP value.
[  260.987043] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  260.992431] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  260.999699] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  261.006966] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  261.014229] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  261.021493] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  261.028782] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  261.028860] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  261.035549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  261.035554] Call Trace:
[  261.035571]  dump_stack+0x244/0x39d
[  261.035592]  ? dump_stack_print_info.cold.1+0x20/0x20
[  261.042118] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  261.051417]  warn_alloc.cold.116+0xb7/0x1bd
[  261.053973] syz-fuzzer cpuset=/ mems_allowed=0
[  261.057595]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  261.086672]  ? lock_downgrade+0x900/0x900
[  261.090828]  ? trace_hardirqs_off+0xb8/0x310
[  261.095241]  ? trace_hardirqs_off+0xb8/0x310
[  261.099654]  __alloc_pages_slowpath+0x2651/0x2de0
[  261.104520]  ? warn_alloc+0x120/0x120
[  261.108325]  ? print_usage_bug+0xc0/0xc0
[  261.112384]  ? warn_alloc+0x120/0x120
[  261.116188]  ? warn_alloc+0x120/0x120
[  261.119994]  ? print_usage_bug+0xc0/0xc0
[  261.124059]  ? print_usage_bug+0xc0/0xc0
[  261.128135]  ? __lock_acquire+0x62f/0x4c20
[  261.132375]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.137937]  ? should_fail+0x22d/0xd01
[  261.141829]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  261.146934]  ? __lock_acquire+0x62f/0x4c20
[  261.151188]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  261.156304]  ? __lock_acquire+0x62f/0x4c20
[  261.160539]  ? should_fail+0x22d/0xd01
[  261.164426]  ? find_held_lock+0x36/0x1c0
[  261.168493]  ? mark_held_locks+0x130/0x130
[  261.172750]  ? mark_held_locks+0x130/0x130
[  261.176993]  ? zap_class+0x640/0x640
[  261.180721]  ? zap_class+0x640/0x640
[  261.184435]  ? print_usage_bug+0xc0/0xc0
[  261.188491]  ? do_raw_spin_unlock+0xa7/0x330
[  261.192907]  ? zap_class+0x640/0x640
[  261.196622]  ? print_usage_bug+0xc0/0xc0
[  261.200683]  ? wq_watchdog_touch+0x9c/0xfe
[  261.204928]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.210469]  ? check_preemption_disabled+0x48/0x280
[  261.215497]  ? __lock_is_held+0xb5/0x140
[  261.219562]  __alloc_pages_nodemask+0xad8/0xea0
[  261.224250]  ? zap_class+0x640/0x640
[  261.227971]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  261.232996]  ? find_held_lock+0x36/0x1c0
[  261.237068]  ? ____cache_alloc_node+0x1c7/0x1e0
[  261.241740]  ? lock_downgrade+0x900/0x900
[  261.245908]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.251456]  cache_grow_begin+0xa5/0x8c0
[  261.255515]  ? do_raw_spin_unlock+0xa7/0x330
[  261.259976]  fallback_alloc+0x204/0x2e0
[  261.263960]  ____cache_alloc_node+0x1c7/0x1e0
[  261.268458]  kmem_cache_alloc_node+0xe3/0x730
[  261.272955]  ? ipv6_get_ifaddr+0x42e/0x620
[  261.277204]  __alloc_skb+0x119/0x770
[  261.280940]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  261.286250]  ? netdev_alloc_frag+0x1f0/0x1f0
[  261.290653]  ? lock_downgrade+0x900/0x900
[  261.294818]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.300369]  ? refcount_sub_and_test_checked+0x203/0x310
[  261.305825]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  261.311293]  ? addrconf_rs_timer+0x690/0x690
[  261.315729]  ndisc_alloc_skb+0x144/0x340
[  261.319790]  ndisc_send_rs+0x331/0x6e0
[  261.323683]  addrconf_rs_timer+0x314/0x690
[  261.327937]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  261.332180]  call_timer_fn+0x272/0x920
[  261.336067]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  261.340300]  ? process_timeout+0x40/0x40
[  261.344367]  ? __run_timers+0x7da/0xc70
[  261.348344]  ? _raw_spin_unlock_irq+0x27/0x80
[  261.352871]  ? _raw_spin_unlock_irq+0x27/0x80
[  261.357381]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  261.361615]  ? lockdep_hardirqs_on+0x296/0x5b0
[  261.366194]  ? trace_hardirqs_on+0xbd/0x310
[  261.370510]  ? kasan_check_read+0x11/0x20
[  261.374651]  ? __run_timers+0x7da/0xc70
[  261.378637]  ? trace_hardirqs_off_caller+0x310/0x310
[  261.383746]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  261.387986]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  261.392218]  __run_timers+0x7e5/0xc70
[  261.396033]  ? timer_fixup_init+0x70/0x70
[  261.400178]  ? _raw_spin_unlock_irq+0x27/0x80
[  261.404671]  ? _raw_spin_unlock_irq+0x27/0x80
[  261.409164]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  261.413778]  ? trace_hardirqs_on+0xbd/0x310
[  261.418112]  ? kasan_check_read+0x11/0x20
[  261.422258]  ? finish_task_switch+0x1f4/0x910
[  261.426758]  ? trace_hardirqs_off_caller+0x310/0x310
[  261.431893]  ? compat_start_thread+0x80/0x80
[  261.436321]  ? pvclock_read_flags+0x160/0x160
[  261.440813]  ? __switch_to_asm+0x34/0x70
[  261.444915]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.450452]  ? check_preemption_disabled+0x48/0x280
[  261.455479]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  261.461017]  ? rcu_pm_notify+0xc0/0xc0
[  261.464913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.470455]  ? check_preemption_disabled+0x48/0x280
[  261.475474]  run_timer_softirq+0x52/0xb0
[  261.479534]  ? rcu_read_lock_sched_held+0x14f/0x180
[  261.484552]  __do_softirq+0x308/0xb7e
[  261.488359]  ? trace_hardirqs_on_caller+0xc0/0x310
[  261.493289]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  261.498391]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  261.503854]  ? trace_hardirqs_on+0x310/0x310
[  261.508314]  ? schedule+0x108/0x460
[  261.511953]  ? trace_hardirqs_off+0xb8/0x310
[  261.516361]  ? smpboot_thread_fn+0x68b/0xa00
[  261.520772]  ? trace_hardirqs_on+0x310/0x310
[  261.525180]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.530728]  ? check_preemption_disabled+0x48/0x280
[  261.536096]  ? takeover_tasklets+0xa90/0xa90
[  261.540504]  run_ksoftirqd+0x5e/0x100
[  261.544309]  smpboot_thread_fn+0x68b/0xa00
[  261.548547]  ? sort_range+0x30/0x30
[  261.552173]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  261.557277]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.562819]  ? __kthread_parkme+0xfb/0x1a0
[  261.567076]  ? sort_range+0x30/0x30
[  261.570708]  kthread+0x35a/0x440
[  261.574075]  ? kthread_stop+0x900/0x900
[  261.578080]  ret_from_fork+0x3a/0x50
[  261.581814] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  261.581820] warn_alloc_show_mem: 1 callbacks suppressed
[  261.581827] Mem-Info:
[  261.588927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  261.594306] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  261.594306]  active_file:12 inactive_file:14 isolated_file:0
[  261.594306]  unevictable:0 dirty:0 writeback:0 unstable:0
[  261.594306]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  261.594306]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  261.594306]  free:13757 free_pcp:113 free_cma:0
[  261.596677] Call Trace:
[  261.606091] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  261.639109]  <IRQ>
[  261.641691] 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
[  261.669567]  dump_stack+0x244/0x39d
[  261.671709] lowmem_reserve[]: 0 2818 6321 6321
[  261.697817]  ? dump_stack_print_info.cold.1+0x20/0x20
[  261.701421] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  261.706008]  warn_alloc.cold.116+0xb7/0x1bd
[  261.711164] lowmem_reserve[]: 0 0 3503 3503
[  261.738656]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  261.742953] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  261.747268]  ? lock_downgrade+0x900/0x900
[  261.752096] lowmem_reserve[]: 0 0 0 0
[  261.781156]  ? trace_hardirqs_off+0xb8/0x310
[  261.785298] 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
[  261.789099]  ? trace_hardirqs_off+0xb8/0x310
[  261.793483] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  261.807001]  __alloc_pages_slowpath+0x2651/0x2de0
[  261.811386] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  261.826929]  ? warn_alloc+0x120/0x120
[  261.831737] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  261.846289]  ? print_usage_bug+0xc0/0xc0
[  261.850075] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  261.858928]  ? warn_alloc+0x120/0x120
[  261.862967] 4236 total pagecache pages
[  261.871531]  ? warn_alloc+0x120/0x120
[  261.875314] 0 pages in swap cache
[  261.879190]  ? print_usage_bug+0xc0/0xc0
[  261.882969] Swap cache stats: add 0, delete 0, find 0/0
[  261.886414]  ? print_usage_bug+0xc0/0xc0
[  261.890450] Free swap  = 0kB
[  261.895805]  ? __lock_acquire+0x62f/0x4c20
[  261.899840] Total swap = 0kB
[  261.902852]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.907060] 1965979 pages RAM
[  261.910090]  ? should_fail+0x22d/0xd01
[  261.915604] 0 pages HighMem/MovableOnly
[  261.918707]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  261.922568] 342854 pages reserved
[  261.926533]  ? __lock_acquire+0x62f/0x4c20
[  261.931625] 0 pages cma reserved
[  261.935096]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  261.939369] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  261.942653]  ? __lock_acquire+0x62f/0x4c20
[  261.942682]  ? should_fail+0x22d/0xd01
[  261.947842] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  261.954279]  ? find_held_lock+0x36/0x1c0
[  261.958490] ksoftirqd/0 cpuset=/ mems_allowed=0
[  261.962371]  ? mark_held_locks+0x130/0x130
[  261.985604]  ? mark_held_locks+0x130/0x130
[  261.989852]  ? zap_class+0x640/0x640
[  261.993576]  ? zap_class+0x640/0x640
[  261.997308]  ? print_usage_bug+0xc0/0xc0
[  262.001386]  ? do_raw_spin_unlock+0xa7/0x330
[  262.005805]  ? zap_class+0x640/0x640
[  262.009535]  ? print_usage_bug+0xc0/0xc0
[  262.013612]  ? wq_watchdog_touch+0x9c/0xfe
[  262.017868]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.023420]  ? check_preemption_disabled+0x48/0x280
[  262.028449]  ? __lock_is_held+0xb5/0x140
[  262.032519]  __alloc_pages_nodemask+0xad8/0xea0
[  262.037205]  ? zap_class+0x640/0x640
[  262.040951]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  262.045998]  ? find_held_lock+0x36/0x1c0
[  262.050231]  ? ____cache_alloc_node+0x1c7/0x1e0
[  262.054934]  ? lock_downgrade+0x900/0x900
[  262.059132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.064675]  cache_grow_begin+0xa5/0x8c0
[  262.068735]  ? do_raw_spin_unlock+0xa7/0x330
[  262.073162]  fallback_alloc+0x204/0x2e0
[  262.077145]  ____cache_alloc_node+0x1c7/0x1e0
[  262.081646]  kmem_cache_alloc_node+0xe3/0x730
[  262.086159]  ? ipv6_get_ifaddr+0x42e/0x620
[  262.090450]  __alloc_skb+0x119/0x770
[  262.094164]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.099447]  ? netdev_alloc_frag+0x1f0/0x1f0
[  262.103858]  ? lock_downgrade+0x900/0x900
[  262.108034]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.113571]  ? refcount_sub_and_test_checked+0x203/0x310
[  262.119029]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  262.124480]  ? addrconf_rs_timer+0x690/0x690
[  262.128911]  ndisc_alloc_skb+0x144/0x340
[  262.132975]  ndisc_send_rs+0x331/0x6e0
[  262.136865]  addrconf_rs_timer+0x314/0x690
[  262.141139]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.145386]  call_timer_fn+0x272/0x920
[  262.149280]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.153540]  ? process_timeout+0x40/0x40
[  262.157607]  ? mark_held_locks+0xc7/0x130
[  262.161758]  ? _raw_spin_unlock_irq+0x27/0x80
[  262.166251]  ? _raw_spin_unlock_irq+0x27/0x80
[  262.170744]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.174997]  ? lockdep_hardirqs_on+0x296/0x5b0
[  262.179597]  ? trace_hardirqs_on+0xbd/0x310
[  262.183924]  ? kasan_check_read+0x11/0x20
[  262.188073]  ? __run_timers+0x7da/0xc70
[  262.192082]  ? trace_hardirqs_off_caller+0x310/0x310
[  262.197190]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.201457]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.205703]  __run_timers+0x7e5/0xc70
[  262.209513]  ? timer_fixup_init+0x70/0x70
[  262.213663]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  262.218679]  ? zap_class+0x640/0x640
[  262.222417]  ? print_usage_bug+0xc0/0xc0
[  262.226481]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  262.231677]  ? find_held_lock+0x36/0x1c0
[  262.235743]  ? zap_class+0x640/0x640
[  262.239479]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.245028]  ? check_preemption_disabled+0x48/0x280
[  262.250057]  ? __lock_is_held+0xb5/0x140
[  262.254139]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.259677]  ? check_preemption_disabled+0x48/0x280
[  262.264701]  run_timer_softirq+0x52/0xb0
[  262.268765]  ? rcu_read_lock_sched_held+0x14f/0x180
[  262.273786]  __do_softirq+0x308/0xb7e
[  262.277590]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  262.282083]  ? lock_downgrade+0x900/0x900
[  262.286236]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  262.291347]  ? pvclock_read_flags+0x160/0x160
[  262.295863]  ? lapic_next_event+0x5a/0x90
[  262.300019]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.305567]  ? kvm_clock_read+0x18/0x30
[  262.309541]  ? kvm_sched_clock_read+0x9/0x20
[  262.313957]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.319502]  ? check_preemption_disabled+0x48/0x280
[  262.324556]  irq_exit+0x17f/0x1c0
[  262.328041]  smp_apic_timer_interrupt+0x1cb/0x760
[  262.332893]  ? smp_call_function_single_interrupt+0x159/0x650
[  262.338801]  ? smp_call_function_single_interrupt+0x650/0x650
[  262.344712]  ? interrupt_entry+0xb5/0xc0
[  262.348774]  ? trace_hardirqs_off_caller+0xbb/0x310
[  262.353787]  ? trace_hardirqs_off_caller+0xbb/0x310
[  262.358801]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  262.363639]  ? trace_hardirqs_on_caller+0x310/0x310
[  262.368659]  ? trace_hardirqs_on_caller+0x310/0x310
[  262.373675]  ? task_prio+0x50/0x50
[  262.377215]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.382756]  ? check_preemption_disabled+0x48/0x280
[  262.387790]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  262.392652]  apic_timer_interrupt+0xf/0x20
[  262.396875]  </IRQ>
[  262.399120] RIP: 0010:dump_stack+0x358/0x39d
[  262.403525] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  262.422423] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  262.430129] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  262.437557] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  262.444835] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  262.452098] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  262.459364] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  262.466651]  ? dump_stack+0x34f/0x39d
[  262.470464]  ? dump_stack_print_info.cold.1+0x20/0x20
[  262.475684]  ? mark_held_locks+0x130/0x130
[  262.479920]  ? mark_held_locks+0x130/0x130
[  262.484209]  dump_header+0x27b/0xf72
[  262.487931]  ? pagefault_out_of_memory+0x197/0x197
[  262.492914]  ? __lock_acquire+0x62f/0x4c20
[  262.497187]  ? percpu_ref_get_many+0x240/0x240
[  262.501800]  ? print_usage_bug+0xc0/0xc0
[  262.505865]  ? zap_class+0x640/0x640
[  262.509604]  ? print_usage_bug+0xc0/0xc0
[  262.513663]  ? print_usage_bug+0xc0/0xc0
[  262.517730]  ? zap_class+0x640/0x640
[  262.521466]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.527004]  ? find_held_lock+0x36/0x1c0
[  262.531069]  ? mark_held_locks+0xc7/0x130
[  262.535233]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  262.540331]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  262.545433]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  262.550017]  ? trace_hardirqs_on+0xbd/0x310
[  262.554338]  ? kasan_check_read+0x11/0x20
[  262.558487]  ? ___ratelimit+0x3b4/0x672
[  262.562991]  ? trace_hardirqs_off_caller+0x310/0x310
[  262.568129]  ? trace_hardirqs_on+0x310/0x310
[  262.572542]  ? lock_downgrade+0x900/0x900
[  262.576696]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  262.581817]  ? ___ratelimit+0x3b9/0x672
[  262.585796]  ? idr_get_free+0xf70/0xf70
[  262.589782]  ? find_held_lock+0x36/0x1c0
[  262.593858]  oom_kill_process.cold.27+0x10/0x903
[  262.598625]  ? zap_class+0x640/0x640
[  262.602339]  ? check_preemption_disabled+0x48/0x280
[  262.607359]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  262.612287]  ? kasan_check_read+0x11/0x20
[  262.616449]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.621733]  ? oom_evaluate_task+0x540/0x540
[  262.626157]  ? find_held_lock+0x36/0x1c0
[  262.630237]  ? out_of_memory+0x974/0x1430
[  262.634394]  ? lock_downgrade+0x900/0x900
[  262.638544]  ? check_preemption_disabled+0x48/0x280
[  262.643564]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  262.648500]  ? kasan_check_read+0x11/0x20
[  262.652662]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.657936]  ? rcu_softirq_qs+0x20/0x20
[  262.661936]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.667489]  ? oom_evaluate_task+0x302/0x540
[  262.671907]  out_of_memory+0xa84/0x1430
[  262.675914]  ? oom_killer_disable+0x3a0/0x3a0
[  262.680418]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  262.685369]  ? __ww_mutex_check_waiters+0x160/0x160
[  262.690423]  __alloc_pages_slowpath+0x232c/0x2de0
[  262.695291]  ? warn_alloc+0x120/0x120
[  262.699092]  ? mark_held_locks+0x130/0x130
[  262.703330]  ? find_get_entry+0xaae/0x1120
[  262.707609]  ? filemap_map_pages+0x1a20/0x1a20
[  262.712239]  ? zap_class+0x640/0x640
[  262.715961]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.721501]  ? check_preemption_disabled+0x48/0x280
[  262.726530]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.732066]  ? should_fail+0x22d/0xd01
[  262.735960]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  262.741069]  ? zap_class+0x640/0x640
[  262.744806]  ? __lock_is_held+0xb5/0x140
[  262.748877]  ? mark_held_locks+0x130/0x130
[  262.753128]  ? lock_release+0xa00/0xa00
[  262.757107]  ? perf_trace_sched_process_exec+0x860/0x860
[  262.762558]  ? xa_load+0x2ba/0x460
[  262.766100]  ? lock_downgrade+0x900/0x900
[  262.770256]  ? __might_sleep+0x95/0x190
[  262.774238]  __alloc_pages_nodemask+0xad8/0xea0
[  262.778931]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  262.783964]  ? __page_cache_alloc+0x191/0x5c0
[  262.788497]  ? xa_load+0x2e1/0x460
[  262.792039]  ? xa_clear_mark+0x40/0x40
[  262.795968]  ? zap_class+0x640/0x640
[  262.799704]  ? zap_class+0x640/0x640
[  262.803433]  ? zap_class+0x640/0x640
[  262.807157]  ? __do_page_cache_readahead+0x663/0x810
[  262.812266]  ? find_held_lock+0x36/0x1c0
[  262.816331]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  262.821869]  alloc_pages_current+0x173/0x350
[  262.826291]  __page_cache_alloc+0x38c/0x5c0
[  262.830611]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  262.835540]  ? kasan_check_read+0x11/0x20
[  262.839691]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.844971]  ? generic_perform_write+0x6a0/0x6a0
[  262.849727]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.855296]  ? check_preemption_disabled+0x48/0x280
[  262.860325]  filemap_fault+0x1595/0x25f0
[  262.864422]  ? __lock_page_or_retry+0xa00/0xa00
[  262.869105]  ? mark_held_locks+0x130/0x130
[  262.873350]  ? filemap_map_pages+0xd6b/0x1a20
[  262.877845]  ? lock_downgrade+0x900/0x900
[  262.882004]  ? check_preemption_disabled+0x48/0x280
[  262.887040]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  262.891985]  ? kasan_check_read+0x11/0x20
[  262.896148]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.901429]  ? rcu_softirq_qs+0x20/0x20
[  262.905501]  ? filemap_map_pages+0xd92/0x1a20
[  262.910012]  ? find_get_entries_tag+0x1400/0x1400
[  262.914860]  ? debug_object_destroy+0x2b0/0x2b0
[  262.919599]  ? lock_pi_update_atomic+0x150/0x150
[  262.924352]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.929920]  ? lock_acquire+0x1ed/0x520
[  262.933914]  ? ext4_filemap_fault+0x7a/0xad
[  262.938253]  ? lock_release+0xa00/0xa00
[  262.942243]  ? perf_trace_sched_process_exec+0x860/0x860
[  262.947702]  ? print_usage_bug+0xc0/0xc0
[  262.951765]  ? print_usage_bug+0xc0/0xc0
[  262.955837]  ? down_read+0x8d/0x120
[  262.959459]  ? ext4_filemap_fault+0x7a/0xad
[  262.963780]  ? __down_interruptible+0x700/0x700
[  262.968460]  ext4_filemap_fault+0x82/0xad
[  262.972607]  __do_fault+0x100/0x6b0
[  262.976236]  ? find_held_lock+0x36/0x1c0
[  262.980299]  ? pmd_devmap_trans_unstable+0x220/0x220
[  262.985408]  ? mark_held_locks+0x130/0x130
[  262.989645]  ? mark_held_locks+0x130/0x130
[  262.993886]  ? _raw_spin_unlock_irq+0x27/0x80
[  262.998375]  ? _raw_spin_unlock_irq+0x27/0x80
[  263.002868]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  263.007453]  ? kasan_check_read+0x11/0x20
[  263.011630]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.017204]  __handle_mm_fault+0x3ea0/0x5be0
[  263.021617]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  263.026460]  ? finish_task_switch+0x1f4/0x910
[  263.030955]  ? finish_task_switch+0x1b4/0x910
[  263.035451]  ? __switch_to_asm+0x34/0x70
[  263.039540]  ? preempt_notifier_register+0x200/0x200
[  263.044642]  ? __switch_to_asm+0x34/0x70
[  263.048701]  ? __switch_to_asm+0x34/0x70
[  263.052784]  ? zap_class+0x640/0x640
[  263.056495]  ? zap_class+0x640/0x640
[  263.060248]  ? __x64_sys_futex+0x53e/0x6a0
[  263.064486]  ? find_held_lock+0x36/0x1c0
[  263.068558]  ? handle_mm_fault+0x42a/0xc70
[  263.072805]  ? lock_downgrade+0x900/0x900
[  263.076958]  ? check_preemption_disabled+0x48/0x280
[  263.081995]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  263.086957]  ? kasan_check_read+0x11/0x20
[  263.091120]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.096398]  ? rcu_softirq_qs+0x20/0x20
[  263.100376]  ? trace_hardirqs_off_caller+0x310/0x310
[  263.105480]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.111030]  ? check_preemption_disabled+0x48/0x280
[  263.116058]  handle_mm_fault+0x54f/0xc70
[  263.120122]  ? __handle_mm_fault+0x5be0/0x5be0
[  263.124709]  ? find_vma+0x34/0x190
[  263.128269]  __do_page_fault+0x5e8/0xe60
[  263.132326]  ? trace_hardirqs_off+0xb8/0x310
[  263.136742]  do_page_fault+0xf2/0x7e0
[  263.140542]  ? vmalloc_sync_all+0x30/0x30
[  263.144701]  ? error_entry+0x70/0xd0
[  263.148445]  ? trace_hardirqs_off_caller+0xbb/0x310
[  263.153467]  ? trace_hardirqs_on_caller+0xc0/0x310
[  263.158402]  ? syscall_return_slowpath+0x5e0/0x5e0
[  263.163328]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  263.168171]  ? trace_hardirqs_on_caller+0x310/0x310
[  263.173200]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  263.178656]  ? prepare_exit_to_usermode+0x291/0x3b0
[  263.183671]  ? page_fault+0x8/0x30
[  263.187217]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  263.192061]  ? page_fault+0x8/0x30
[  263.195604]  page_fault+0x1e/0x30
[  263.199068] RIP: 0033:0x40f9c0
[  263.202271] Code: Bad RIP value.
[  263.205630] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  263.210991] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  263.218257] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  263.225523] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  263.232787] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  263.240054] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  263.247361] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  263.247490] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  263.254172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  263.254180] Call Trace:
[  263.260755] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  263.270032]  dump_stack+0x244/0x39d
[  263.272595] syz-fuzzer cpuset=/ mems_allowed=0
[  263.282842]  ? dump_stack_print_info.cold.1+0x20/0x20
[  263.296234]  warn_alloc.cold.116+0xb7/0x1bd
[  263.300569]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  263.305412]  ? lock_downgrade+0x900/0x900
[  263.309570]  ? trace_hardirqs_off+0xb8/0x310
[  263.313984]  ? trace_hardirqs_off+0xb8/0x310
[  263.318397]  __alloc_pages_slowpath+0x2651/0x2de0
[  263.323272]  ? warn_alloc+0x120/0x120
[  263.327080]  ? print_usage_bug+0xc0/0xc0
[  263.331150]  ? warn_alloc+0x120/0x120
[  263.334960]  ? warn_alloc+0x120/0x120
[  263.340674]  ? print_usage_bug+0xc0/0xc0
[  263.344760]  ? print_usage_bug+0xc0/0xc0
[  263.348822]  ? __lock_acquire+0x62f/0x4c20
[  263.353064]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.358617]  ? should_fail+0x22d/0xd01
[  263.362521]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  263.367628]  ? __lock_acquire+0x62f/0x4c20
[  263.371870]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  263.376988]  ? __lock_acquire+0x62f/0x4c20
[  263.381219]  ? should_fail+0x22d/0xd01
[  263.385106]  ? find_held_lock+0x36/0x1c0
[  263.389176]  ? mark_held_locks+0x130/0x130
[  263.393418]  ? mark_held_locks+0x130/0x130
[  263.397652]  ? zap_class+0x640/0x640
[  263.401370]  ? mark_held_locks+0xc7/0x130
[  263.405519]  ? do_raw_spin_unlock+0xa7/0x330
[  263.409930]  ? zap_class+0x640/0x640
[  263.413644]  ? print_usage_bug+0xc0/0xc0
[  263.417726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.423265]  ? check_preemption_disabled+0x48/0x280
[  263.428288]  ? __lock_is_held+0xb5/0x140
[  263.432358]  __alloc_pages_nodemask+0xad8/0xea0
[  263.437025]  ? zap_class+0x640/0x640
[  263.440748]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  263.445773]  ? find_held_lock+0x36/0x1c0
[  263.449843]  ? ____cache_alloc_node+0x1c7/0x1e0
[  263.454512]  ? lock_downgrade+0x900/0x900
[  263.458665]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.464209]  cache_grow_begin+0xa5/0x8c0
[  263.468268]  ? do_raw_spin_unlock+0xa7/0x330
[  263.472682]  fallback_alloc+0x204/0x2e0
[  263.476678]  ____cache_alloc_node+0x1c7/0x1e0
[  263.481178]  kmem_cache_alloc_node+0xe3/0x730
[  263.485674]  ? ipv6_get_ifaddr+0x42e/0x620
[  263.489929]  __alloc_skb+0x119/0x770
[  263.493649]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.498956]  ? netdev_alloc_frag+0x1f0/0x1f0
[  263.503364]  ? lock_downgrade+0x900/0x900
[  263.507520]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.513059]  ? refcount_sub_and_test_checked+0x203/0x310
[  263.518511]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  263.523961]  ? addrconf_rs_timer+0x690/0x690
[  263.528376]  ndisc_alloc_skb+0x144/0x340
[  263.532439]  ndisc_send_rs+0x331/0x6e0
[  263.536332]  addrconf_rs_timer+0x314/0x690
[  263.540571]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.544816]  call_timer_fn+0x272/0x920
[  263.548716]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.552952]  ? process_timeout+0x40/0x40
[  263.557019]  ? __run_timers+0x7da/0xc70
[  263.561022]  ? _raw_spin_unlock_irq+0x27/0x80
[  263.565516]  ? _raw_spin_unlock_irq+0x27/0x80
[  263.570011]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.574247]  ? lockdep_hardirqs_on+0x296/0x5b0
[  263.578833]  ? trace_hardirqs_on+0xbd/0x310
[  263.583155]  ? kasan_check_read+0x11/0x20
[  263.587310]  ? __run_timers+0x7da/0xc70
[  263.591312]  ? trace_hardirqs_off_caller+0x310/0x310
[  263.596417]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.600660]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.604909]  __run_timers+0x7e5/0xc70
[  263.608719]  ? timer_fixup_init+0x70/0x70
[  263.612888]  ? _raw_spin_unlock_irq+0x27/0x80
[  263.617385]  ? _raw_spin_unlock_irq+0x27/0x80
[  263.621922]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  263.626511]  ? trace_hardirqs_on+0xbd/0x310
[  263.630845]  ? kasan_check_read+0x11/0x20
[  263.634994]  ? finish_task_switch+0x1f4/0x910
[  263.639486]  ? trace_hardirqs_off_caller+0x310/0x310
[  263.644589]  ? compat_start_thread+0x80/0x80
[  263.649032]  ? pvclock_read_flags+0x160/0x160
[  263.653526]  ? __switch_to_asm+0x34/0x70
[  263.657587]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.663145]  ? check_preemption_disabled+0x48/0x280
[  263.668173]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  263.673710]  ? rcu_pm_notify+0xc0/0xc0
[  263.677614]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.683149]  ? check_preemption_disabled+0x48/0x280
[  263.688172]  run_timer_softirq+0x52/0xb0
[  263.692245]  ? rcu_read_lock_sched_held+0x14f/0x180
[  263.697279]  __do_softirq+0x308/0xb7e
[  263.701094]  ? trace_hardirqs_on_caller+0xc0/0x310
[  263.706030]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  263.711143]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  263.716600]  ? trace_hardirqs_on+0x310/0x310
[  263.721014]  ? schedule+0x108/0x460
[  263.724654]  ? trace_hardirqs_off+0xb8/0x310
[  263.729081]  ? smpboot_thread_fn+0x68b/0xa00
[  263.733491]  ? trace_hardirqs_on+0x310/0x310
[  263.737912]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.743451]  ? check_preemption_disabled+0x48/0x280
[  263.748470]  ? takeover_tasklets+0xa90/0xa90
[  263.752887]  run_ksoftirqd+0x5e/0x100
[  263.756710]  smpboot_thread_fn+0x68b/0xa00
[  263.760964]  ? sort_range+0x30/0x30
[  263.764609]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  263.769708]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.775271]  ? __kthread_parkme+0xfb/0x1a0
[  263.779508]  ? sort_range+0x30/0x30
[  263.783137]  kthread+0x35a/0x440
[  263.786505]  ? kthread_stop+0x900/0x900
[  263.790483]  ret_from_fork+0x3a/0x50
[  263.794243] warn_alloc_show_mem: 1 callbacks suppressed
[  263.794255] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  263.794257] Mem-Info:
[  263.794288] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  263.794288]  active_file:12 inactive_file:14 isolated_file:0
[  263.794288]  unevictable:0 dirty:0 writeback:0 unstable:0
[  263.794288]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  263.794288]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  263.794288]  free:13757 free_pcp:113 free_cma:0
[  263.799634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  263.806563] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  263.808992] Call Trace:
[  263.842030] 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
[  263.851387]  <IRQ>
[  263.879217] lowmem_reserve[]: 0 2818 6321 6321
[  263.881812]  dump_stack+0x244/0x39d
[  263.907922] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  263.910073]  ? dump_stack_print_info.cold.1+0x20/0x20
[  263.914634] lowmem_reserve[]: 0 0 3503 3503
[  263.918300]  warn_alloc.cold.116+0xb7/0x1bd
[  263.945766] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  263.950962]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  263.955262] lowmem_reserve[]: 0 0 0 0
[  263.959581]  ? lock_downgrade+0x900/0x900
[  263.988644] 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
[  263.993495]  ? trace_hardirqs_off+0xb8/0x310
[  263.997267] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  264.001419]  ? trace_hardirqs_off+0xb8/0x310
[  264.014930] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  264.019356]  __alloc_pages_slowpath+0x2651/0x2de0
[  264.034900] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  264.039328]  ? warn_alloc+0x120/0x120
[  264.053854] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  264.058684]  ? print_usage_bug+0xc0/0xc0
[  264.067510] 4236 total pagecache pages
[  264.071301]  ? warn_alloc+0x120/0x120
[  264.079858] 0 pages in swap cache
[  264.083918]  ? warn_alloc+0x120/0x120
[  264.087801] Swap cache stats: add 0, delete 0, find 0/0
[  264.091591]  ? print_usage_bug+0xc0/0xc0
[  264.095021] Free swap  = 0kB
[  264.098817]  ? kvm_clock_read+0x18/0x30
[  264.104156] Total swap = 0kB
[  264.108225]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  264.111249] 1965979 pages RAM
[  264.115214]  ? print_usage_bug+0xc0/0xc0
[  264.118221] 0 pages HighMem/MovableOnly
[  264.123225]  ? __lock_acquire+0x62f/0x4c20
[  264.126304] 342854 pages reserved
[  264.130359]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  264.134316] 0 pages cma reserved
[  264.138544]  ? should_fail+0x22d/0xd01
[  264.142042] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  264.147499]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.147517]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  264.147550]  ? __lock_acquire+0x62f/0x4c20
[  264.150990] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  264.154821]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  264.161297] ksoftirqd/0 cpuset=/ mems_allowed=0
[  264.166560]  ? __lock_acquire+0x62f/0x4c20
[  264.166592]  ? should_fail+0x22d/0xd01
[  264.204037]  ? rcu_irq_exit+0x1a2/0x390
[  264.208027]  ? mark_held_locks+0x130/0x130
[  264.212283]  ? mark_held_locks+0x130/0x130
[  264.216532]  ? try_to_wake_up+0x11c/0x1490
[  264.220789]  ? lock_downgrade+0x900/0x900
[  264.224942]  ? zap_class+0x640/0x640
[  264.228669]  ? print_usage_bug+0xc0/0xc0
[  264.232745]  ? trace_hardirqs_off+0xb8/0x310
[  264.237154]  ? kasan_check_read+0x11/0x20
[  264.241308]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.246848]  ? check_preemption_disabled+0x48/0x280
[  264.251887]  ? __lock_is_held+0xb5/0x140
[  264.255955]  __alloc_pages_nodemask+0xad8/0xea0
[  264.260624]  ? zap_class+0x640/0x640
[  264.264367]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  264.269403]  ? find_held_lock+0x36/0x1c0
[  264.273473]  ? ____cache_alloc_node+0x1c7/0x1e0
[  264.278145]  ? lock_downgrade+0x900/0x900
[  264.282298]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.287838]  cache_grow_begin+0xa5/0x8c0
[  264.291910]  ? do_raw_spin_unlock+0xa7/0x330
[  264.296341]  fallback_alloc+0x204/0x2e0
[  264.300326]  ____cache_alloc_node+0x1c7/0x1e0
[  264.304832]  kmem_cache_alloc_node+0xe3/0x730
[  264.309343]  ? ipv6_get_ifaddr+0x42e/0x620
[  264.313612]  __alloc_skb+0x119/0x770
[  264.317323]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.322604]  ? netdev_alloc_frag+0x1f0/0x1f0
[  264.327015]  ? lock_downgrade+0x900/0x900
[  264.331170]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.336710]  ? refcount_sub_and_test_checked+0x203/0x310
[  264.342179]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  264.347662]  ? addrconf_rs_timer+0x690/0x690
[  264.352098]  ndisc_alloc_skb+0x144/0x340
[  264.356168]  ndisc_send_rs+0x331/0x6e0
[  264.360062]  addrconf_rs_timer+0x314/0x690
[  264.364301]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.368562]  call_timer_fn+0x272/0x920
[  264.372450]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.376701]  ? process_timeout+0x40/0x40
[  264.380772]  ? mark_held_locks+0xc7/0x130
[  264.384922]  ? _raw_spin_unlock_irq+0x27/0x80
[  264.389433]  ? _raw_spin_unlock_irq+0x27/0x80
[  264.393925]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.398161]  ? lockdep_hardirqs_on+0x296/0x5b0
[  264.402746]  ? trace_hardirqs_on+0xbd/0x310
[  264.407072]  ? kasan_check_read+0x11/0x20
[  264.411237]  ? __run_timers+0x7da/0xc70
[  264.415229]  ? trace_hardirqs_off_caller+0x310/0x310
[  264.420357]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.424594]  __run_timers+0x7e5/0xc70
[  264.428409]  ? timer_fixup_init+0x70/0x70
[  264.432770]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  264.437791]  ? zap_class+0x640/0x640
[  264.441510]  ? print_usage_bug+0xc0/0xc0
[  264.445584]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  264.450781]  ? find_held_lock+0x36/0x1c0
[  264.454859]  ? zap_class+0x640/0x640
[  264.458587]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.464148]  ? check_preemption_disabled+0x48/0x280
[  264.469178]  ? __lock_is_held+0xb5/0x140
[  264.473241]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.478801]  ? check_preemption_disabled+0x48/0x280
[  264.483835]  run_timer_softirq+0x52/0xb0
[  264.487905]  ? rcu_read_lock_sched_held+0x14f/0x180
[  264.492923]  __do_softirq+0x308/0xb7e
[  264.496728]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  264.501224]  ? lock_downgrade+0x900/0x900
[  264.505411]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  264.510541]  ? pvclock_read_flags+0x160/0x160
[  264.515044]  ? lapic_next_event+0x5a/0x90
[  264.519208]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.524759]  ? kvm_clock_read+0x18/0x30
[  264.528763]  ? kvm_sched_clock_read+0x9/0x20
[  264.533175]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  264.538713]  ? check_preemption_disabled+0x48/0x280
[  264.543742]  irq_exit+0x17f/0x1c0
[  264.547199]  smp_apic_timer_interrupt+0x1cb/0x760
[  264.552041]  ? smp_call_function_single_interrupt+0x159/0x650
[  264.557933]  ? smp_call_function_single_interrupt+0x650/0x650
[  264.564285]  ? interrupt_entry+0xb5/0xc0
[  264.568370]  ? trace_hardirqs_off_caller+0xbb/0x310
[  264.573394]  ? trace_hardirqs_off_caller+0xbb/0x310
[  264.578417]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.583263]  ? trace_hardirqs_on_caller+0x310/0x310
[  264.588293]  ? trace_hardirqs_on_caller+0x310/0x310
[  264.593337]  ? task_prio+0x50/0x50
[  264.596876]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.602444]  ? check_preemption_disabled+0x48/0x280
[  264.607492]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.612342]  apic_timer_interrupt+0xf/0x20
[  264.616572]  </IRQ>
[  264.618824] RIP: 0010:dump_stack+0x358/0x39d
[  264.623231] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  264.642133] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  264.649840] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  264.657121] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  264.664409] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  264.671689] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  264.678969] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  264.686251]  ? dump_stack+0x34f/0x39d
[  264.690059]  ? dump_stack_print_info.cold.1+0x20/0x20
[  264.695250]  ? mark_held_locks+0x130/0x130
[  264.699482]  ? mark_held_locks+0x130/0x130
[  264.703718]  dump_header+0x27b/0xf72
[  264.707449]  ? pagefault_out_of_memory+0x197/0x197
[  264.712386]  ? __lock_acquire+0x62f/0x4c20
[  264.716629]  ? percpu_ref_get_many+0x240/0x240
[  264.721217]  ? print_usage_bug+0xc0/0xc0
[  264.725285]  ? zap_class+0x640/0x640
[  264.729003]  ? print_usage_bug+0xc0/0xc0
[  264.733079]  ? print_usage_bug+0xc0/0xc0
[  264.737141]  ? zap_class+0x640/0x640
[  264.740864]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.746432]  ? find_held_lock+0x36/0x1c0
[  264.750503]  ? mark_held_locks+0xc7/0x130
[  264.754654]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  264.759757]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  264.764899]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  264.769488]  ? trace_hardirqs_on+0xbd/0x310
[  264.773808]  ? kasan_check_read+0x11/0x20
[  264.777958]  ? ___ratelimit+0x3b4/0x672
[  264.781936]  ? trace_hardirqs_off_caller+0x310/0x310
[  264.787041]  ? trace_hardirqs_on+0x310/0x310
[  264.791455]  ? lock_downgrade+0x900/0x900
[  264.795612]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  264.800717]  ? ___ratelimit+0x3b9/0x672
[  264.804692]  ? idr_get_free+0xf70/0xf70
[  264.808680]  ? find_held_lock+0x36/0x1c0
[  264.812767]  oom_kill_process.cold.27+0x10/0x903
[  264.817523]  ? zap_class+0x640/0x640
[  264.821235]  ? check_preemption_disabled+0x48/0x280
[  264.826257]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  264.831191]  ? kasan_check_read+0x11/0x20
[  264.835341]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.840622]  ? oom_evaluate_task+0x540/0x540
[  264.845032]  ? find_held_lock+0x36/0x1c0
[  264.849099]  ? out_of_memory+0x974/0x1430
[  264.853266]  ? lock_downgrade+0x900/0x900
[  264.857415]  ? check_preemption_disabled+0x48/0x280
[  264.862438]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  264.867398]  ? kasan_check_read+0x11/0x20
[  264.871547]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.876824]  ? rcu_softirq_qs+0x20/0x20
[  264.880802]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  264.886339]  ? oom_evaluate_task+0x302/0x540
[  264.890750]  out_of_memory+0xa84/0x1430
[  264.894747]  ? oom_killer_disable+0x3a0/0x3a0
[  264.899255]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  264.904192]  ? __ww_mutex_check_waiters+0x160/0x160
[  264.909228]  __alloc_pages_slowpath+0x232c/0x2de0
[  264.914100]  ? warn_alloc+0x120/0x120
[  264.917921]  ? mark_held_locks+0x130/0x130
[  264.922170]  ? find_get_entry+0xaae/0x1120
[  264.926423]  ? filemap_map_pages+0x1a20/0x1a20
[  264.931014]  ? zap_class+0x640/0x640
[  264.934750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.940301]  ? check_preemption_disabled+0x48/0x280
[  264.945333]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  264.950895]  ? should_fail+0x22d/0xd01
[  264.954787]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  264.959902]  ? zap_class+0x640/0x640
[  264.963651]  ? __lock_is_held+0xb5/0x140
[  264.967724]  ? mark_held_locks+0x130/0x130
[  264.971976]  ? lock_release+0xa00/0xa00
[  264.975954]  ? perf_trace_sched_process_exec+0x860/0x860
[  264.981411]  ? xa_load+0x2ba/0x460
[  264.984953]  ? lock_downgrade+0x900/0x900
[  264.989105]  ? __might_sleep+0x95/0x190
[  264.993083]  __alloc_pages_nodemask+0xad8/0xea0
[  264.997766]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  265.002793]  ? __page_cache_alloc+0x191/0x5c0
[  265.007286]  ? xa_load+0x2e1/0x460
[  265.010842]  ? xa_clear_mark+0x40/0x40
[  265.014729]  ? zap_class+0x640/0x640
[  265.018452]  ? zap_class+0x640/0x640
[  265.022186]  ? zap_class+0x640/0x640
[  265.025928]  ? __do_page_cache_readahead+0x663/0x810
[  265.031040]  ? find_held_lock+0x36/0x1c0
[  265.035108]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  265.040653]  alloc_pages_current+0x173/0x350
[  265.045070]  __page_cache_alloc+0x38c/0x5c0
[  265.049396]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  265.054327]  ? kasan_check_read+0x11/0x20
[  265.058473]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.063759]  ? generic_perform_write+0x6a0/0x6a0
[  265.068515]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.074068]  ? check_preemption_disabled+0x48/0x280
[  265.079125]  filemap_fault+0x1595/0x25f0
[  265.083207]  ? __lock_page_or_retry+0xa00/0xa00
[  265.087877]  ? mark_held_locks+0x130/0x130
[  265.092144]  ? filemap_map_pages+0xd6b/0x1a20
[  265.096652]  ? lock_downgrade+0x900/0x900
[  265.100796]  ? check_preemption_disabled+0x48/0x280
[  265.105826]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  265.110752]  ? kasan_check_read+0x11/0x20
[  265.114919]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.120198]  ? rcu_softirq_qs+0x20/0x20
[  265.124183]  ? filemap_map_pages+0xd92/0x1a20
[  265.128686]  ? find_get_entries_tag+0x1400/0x1400
[  265.133532]  ? debug_object_destroy+0x2b0/0x2b0
[  265.138204]  ? lock_pi_update_atomic+0x150/0x150
[  265.142962]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.148511]  ? lock_acquire+0x1ed/0x520
[  265.152483]  ? ext4_filemap_fault+0x7a/0xad
[  265.156822]  ? lock_release+0xa00/0xa00
[  265.160795]  ? perf_trace_sched_process_exec+0x860/0x860
[  265.166243]  ? print_usage_bug+0xc0/0xc0
[  265.170310]  ? print_usage_bug+0xc0/0xc0
[  265.174381]  ? down_read+0x8d/0x120
[  265.178026]  ? ext4_filemap_fault+0x7a/0xad
[  265.182356]  ? __down_interruptible+0x700/0x700
[  265.187046]  ext4_filemap_fault+0x82/0xad
[  265.191202]  __do_fault+0x100/0x6b0
[  265.194826]  ? find_held_lock+0x36/0x1c0
[  265.198907]  ? pmd_devmap_trans_unstable+0x220/0x220
[  265.204017]  ? mark_held_locks+0x130/0x130
[  265.208253]  ? mark_held_locks+0x130/0x130
[  265.212486]  ? _raw_spin_unlock_irq+0x27/0x80
[  265.216979]  ? _raw_spin_unlock_irq+0x27/0x80
[  265.221472]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  265.226060]  ? kasan_check_read+0x11/0x20
[  265.230209]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.235750]  __handle_mm_fault+0x3ea0/0x5be0
[  265.240168]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  265.245012]  ? finish_task_switch+0x1f4/0x910
[  265.249506]  ? finish_task_switch+0x1b4/0x910
[  265.254015]  ? __switch_to_asm+0x34/0x70
[  265.258093]  ? preempt_notifier_register+0x200/0x200
[  265.263230]  ? __switch_to_asm+0x34/0x70
[  265.267286]  ? __switch_to_asm+0x34/0x70
[  265.271395]  ? zap_class+0x640/0x640
[  265.275108]  ? zap_class+0x640/0x640
[  265.278824]  ? __x64_sys_futex+0x53e/0x6a0
[  265.283064]  ? find_held_lock+0x36/0x1c0
[  265.287134]  ? handle_mm_fault+0x42a/0xc70
[  265.291371]  ? lock_downgrade+0x900/0x900
[  265.295520]  ? check_preemption_disabled+0x48/0x280
[  265.300544]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  265.305473]  ? kasan_check_read+0x11/0x20
[  265.309618]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.314903]  ? rcu_softirq_qs+0x20/0x20
[  265.318900]  ? trace_hardirqs_off_caller+0x310/0x310
[  265.324007]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.329542]  ? check_preemption_disabled+0x48/0x280
[  265.334567]  handle_mm_fault+0x54f/0xc70
[  265.338629]  ? __handle_mm_fault+0x5be0/0x5be0
[  265.343212]  ? find_vma+0x34/0x190
[  265.346791]  __do_page_fault+0x5e8/0xe60
[  265.350847]  ? trace_hardirqs_off+0xb8/0x310
[  265.355272]  do_page_fault+0xf2/0x7e0
[  265.359092]  ? vmalloc_sync_all+0x30/0x30
[  265.363240]  ? error_entry+0x70/0xd0
[  265.366957]  ? trace_hardirqs_off_caller+0xbb/0x310
[  265.371973]  ? trace_hardirqs_on_caller+0xc0/0x310
[  265.376912]  ? syscall_return_slowpath+0x5e0/0x5e0
[  265.381840]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.386686]  ? trace_hardirqs_on_caller+0x310/0x310
[  265.391701]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  265.397193]  ? prepare_exit_to_usermode+0x291/0x3b0
[  265.402227]  ? page_fault+0x8/0x30
[  265.405774]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.410617]  ? page_fault+0x8/0x30
[  265.414156]  page_fault+0x1e/0x30
[  265.417611] RIP: 0033:0x40f9c0
[  265.420815] Code: Bad RIP value.
[  265.424175] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  265.429537] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  265.436803] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  265.444070] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  265.451355] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  265.458623] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  265.465932] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  265.465998] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  265.472690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  265.472699] Call Trace:
[  265.479267] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  265.488545]  dump_stack+0x244/0x39d
[  265.491110] syz-fuzzer cpuset=/ mems_allowed=0
[  265.501331]  ? dump_stack_print_info.cold.1+0x20/0x20
[  265.514699]  warn_alloc.cold.116+0xb7/0x1bd
[  265.519040]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  265.523896]  ? lock_downgrade+0x900/0x900
[  265.528072]  ? trace_hardirqs_off+0xb8/0x310
[  265.532487]  ? trace_hardirqs_off+0xb8/0x310
[  265.536941]  __alloc_pages_slowpath+0x2651/0x2de0
[  265.541827]  ? warn_alloc+0x120/0x120
[  265.545629]  ? print_usage_bug+0xc0/0xc0
[  265.549691]  ? warn_alloc+0x120/0x120
[  265.553510]  ? warn_alloc+0x120/0x120
[  265.557315]  ? print_usage_bug+0xc0/0xc0
[  265.561381]  ? print_usage_bug+0xc0/0xc0
[  265.565443]  ? __lock_acquire+0x62f/0x4c20
[  265.569697]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.575234]  ? should_fail+0x22d/0xd01
[  265.579124]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  265.584248]  ? __lock_acquire+0x62f/0x4c20
[  265.588502]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  265.593603]  ? __lock_acquire+0x62f/0x4c20
[  265.597848]  ? should_fail+0x22d/0xd01
[  265.601742]  ? find_held_lock+0x36/0x1c0
[  265.605812]  ? mark_held_locks+0x130/0x130
[  265.610064]  ? mark_held_locks+0x130/0x130
[  265.614313]  ? zap_class+0x640/0x640
[  265.618054]  ? zap_class+0x640/0x640
[  265.621782]  ? print_usage_bug+0xc0/0xc0
[  265.625851]  ? do_raw_spin_unlock+0xa7/0x330
[  265.630267]  ? zap_class+0x640/0x640
[  265.633998]  ? print_usage_bug+0xc0/0xc0
[  265.638063]  ? wq_watchdog_touch+0x9c/0xfe
[  265.642317]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.647895]  ? check_preemption_disabled+0x48/0x280
[  265.652948]  ? __lock_is_held+0xb5/0x140
[  265.657014]  __alloc_pages_nodemask+0xad8/0xea0
[  265.661681]  ? zap_class+0x640/0x640
[  265.665399]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  265.670454]  ? find_held_lock+0x36/0x1c0
[  265.674556]  ? ____cache_alloc_node+0x1c7/0x1e0
[  265.679227]  ? lock_downgrade+0x900/0x900
[  265.683381]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.688943]  cache_grow_begin+0xa5/0x8c0
[  265.693007]  ? do_raw_spin_unlock+0xa7/0x330
[  265.697424]  fallback_alloc+0x204/0x2e0
[  265.701401]  ____cache_alloc_node+0x1c7/0x1e0
[  265.705914]  kmem_cache_alloc_node+0xe3/0x730
[  265.710413]  ? ipv6_get_ifaddr+0x42e/0x620
[  265.714660]  __alloc_skb+0x119/0x770
[  265.718376]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.723656]  ? netdev_alloc_frag+0x1f0/0x1f0
[  265.728065]  ? lock_downgrade+0x900/0x900
[  265.732234]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.737782]  ? refcount_sub_and_test_checked+0x203/0x310
[  265.743236]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  265.748689]  ? addrconf_rs_timer+0x690/0x690
[  265.753120]  ndisc_alloc_skb+0x144/0x340
[  265.757208]  ndisc_send_rs+0x331/0x6e0
[  265.761107]  addrconf_rs_timer+0x314/0x690
[  265.765358]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.769616]  call_timer_fn+0x272/0x920
[  265.773511]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.777759]  ? process_timeout+0x40/0x40
[  265.781829]  ? __run_timers+0x7da/0xc70
[  265.785809]  ? _raw_spin_unlock_irq+0x27/0x80
[  265.790302]  ? _raw_spin_unlock_irq+0x27/0x80
[  265.794798]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.799037]  ? lockdep_hardirqs_on+0x296/0x5b0
[  265.803621]  ? trace_hardirqs_on+0xbd/0x310
[  265.807956]  ? kasan_check_read+0x11/0x20
[  265.812095]  ? __run_timers+0x7da/0xc70
[  265.816081]  ? trace_hardirqs_off_caller+0x310/0x310
[  265.821207]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.825445]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.829680]  __run_timers+0x7e5/0xc70
[  265.833518]  ? timer_fixup_init+0x70/0x70
[  265.837663]  ? _raw_spin_unlock_irq+0x27/0x80
[  265.842168]  ? _raw_spin_unlock_irq+0x27/0x80
[  265.846658]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  265.851252]  ? trace_hardirqs_on+0xbd/0x310
[  265.855575]  ? kasan_check_read+0x11/0x20
[  265.859728]  ? finish_task_switch+0x1f4/0x910
[  265.864220]  ? trace_hardirqs_off_caller+0x310/0x310
[  265.869325]  ? compat_start_thread+0x80/0x80
[  265.873757]  ? pvclock_read_flags+0x160/0x160
[  265.878251]  ? __switch_to_asm+0x34/0x70
[  265.882311]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.887852]  ? check_preemption_disabled+0x48/0x280
[  265.892904]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  265.898458]  ? rcu_pm_notify+0xc0/0xc0
[  265.902349]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.907897]  ? check_preemption_disabled+0x48/0x280
[  265.912921]  run_timer_softirq+0x52/0xb0
[  265.916981]  ? rcu_read_lock_sched_held+0x14f/0x180
[  265.921995]  __do_softirq+0x308/0xb7e
[  265.925797]  ? trace_hardirqs_on_caller+0xc0/0x310
[  265.930729]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  265.935830]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  265.941281]  ? trace_hardirqs_on+0x310/0x310
[  265.945696]  ? schedule+0x108/0x460
[  265.949336]  ? trace_hardirqs_off+0xb8/0x310
[  265.953747]  ? smpboot_thread_fn+0x68b/0xa00
[  265.958154]  ? trace_hardirqs_on+0x310/0x310
[  265.962563]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.968106]  ? check_preemption_disabled+0x48/0x280
[  265.973126]  ? takeover_tasklets+0xa90/0xa90
[  265.977539]  run_ksoftirqd+0x5e/0x100
[  265.981341]  smpboot_thread_fn+0x68b/0xa00
[  265.985581]  ? sort_range+0x30/0x30
[  265.989207]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  265.994310]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.999850]  ? __kthread_parkme+0xfb/0x1a0
[  266.004113]  ? sort_range+0x30/0x30
[  266.007753]  kthread+0x35a/0x440
[  266.011169]  ? kthread_stop+0x900/0x900
[  266.015158]  ret_from_fork+0x3a/0x50
[  266.018960] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  266.018965] warn_alloc_show_mem: 1 callbacks suppressed
[  266.018971] Mem-Info:
[  266.025899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  266.031266] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  266.031266]  active_file:12 inactive_file:14 isolated_file:0
[  266.031266]  unevictable:0 dirty:0 writeback:0 unstable:0
[  266.031266]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  266.031266]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  266.031266]  free:13757 free_pcp:113 free_cma:0
[  266.033657] Call Trace:
[  266.043040] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  266.076057]  <IRQ>
[  266.078626] 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
[  266.106467]  dump_stack+0x244/0x39d
[  266.108590] lowmem_reserve[]: 0 2818 6321 6321
[  266.134691]  ? dump_stack_print_info.cold.1+0x20/0x20
[  266.138289] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  266.142872]  warn_alloc.cold.116+0xb7/0x1bd
[  266.148034] lowmem_reserve[]: 0 0 3503 3503
[  266.175527]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  266.179822] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  266.184148]  ? lock_downgrade+0x900/0x900
[  266.188963] lowmem_reserve[]: 0 0 0 0
[  266.218022]  ? trace_hardirqs_off+0xb8/0x310
[  266.222174] 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
[  266.225970]  ? trace_hardirqs_off+0xb8/0x310
[  266.230352] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  266.243874]  __alloc_pages_slowpath+0x2651/0x2de0
[  266.248266] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  266.263799]  ? warn_alloc+0x120/0x120
[  266.268602] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  266.283169]  ? print_usage_bug+0xc0/0xc0
[  266.286963] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  266.295785]  ? warn_alloc+0x120/0x120
[  266.299834] 4236 total pagecache pages
[  266.308404]  ? warn_alloc+0x120/0x120
[  266.312205] 0 pages in swap cache
[  266.316090]  ? print_usage_bug+0xc0/0xc0
[  266.319871] Swap cache stats: add 0, delete 0, find 0/0
[  266.323317]  ? kvm_clock_read+0x18/0x30
[  266.327357] Free swap  = 0kB
[  266.332718]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  266.336667] Total swap = 0kB
[  266.339676]  ? print_usage_bug+0xc0/0xc0
[  266.344681] 1965979 pages RAM
[  266.347700]  ? __lock_acquire+0x62f/0x4c20
[  266.351751] 0 pages HighMem/MovableOnly
[  266.354847]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.359053] 342854 pages reserved
[  266.363051]  ? should_fail+0x22d/0xd01
[  266.368562] 0 pages cma reserved
[  266.372006]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.375963] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  266.379267]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  266.384635] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  266.391040]  ? __lock_acquire+0x62f/0x4c20
[  266.396116] ksoftirqd/0 cpuset=/ mems_allowed=0
[  266.406418]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  266.420425]  ? __lock_acquire+0x62f/0x4c20
[  266.424654]  ? should_fail+0x22d/0xd01
[  266.428536]  ? rcu_irq_exit+0x1a2/0x390
[  266.432712]  ? mark_held_locks+0x130/0x130
[  266.436956]  ? mark_held_locks+0x130/0x130
[  266.441199]  ? mark_held_locks+0xc7/0x130
[  266.445345]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  266.450359]  ? zap_class+0x640/0x640
[  266.454074]  ? print_usage_bug+0xc0/0xc0
[  266.458143]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.463681]  ? check_preemption_disabled+0x48/0x280
[  266.468718]  ? __lock_is_held+0xb5/0x140
[  266.472788]  __alloc_pages_nodemask+0xad8/0xea0
[  266.477475]  ? zap_class+0x640/0x640
[  266.481193]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  266.486233]  ? find_held_lock+0x36/0x1c0
[  266.490301]  ? ____cache_alloc_node+0x1c7/0x1e0
[  266.494967]  ? lock_downgrade+0x900/0x900
[  266.499121]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.504659]  cache_grow_begin+0xa5/0x8c0
[  266.508735]  ? do_raw_spin_unlock+0xa7/0x330
[  266.513154]  fallback_alloc+0x204/0x2e0
[  266.517161]  ____cache_alloc_node+0x1c7/0x1e0
[  266.521660]  kmem_cache_alloc_node+0xe3/0x730
[  266.526201]  ? ipv6_get_ifaddr+0x42e/0x620
[  266.530447]  __alloc_skb+0x119/0x770
[  266.534171]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.539450]  ? netdev_alloc_frag+0x1f0/0x1f0
[  266.543861]  ? lock_downgrade+0x900/0x900
[  266.548023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.553590]  ? refcount_sub_and_test_checked+0x203/0x310
[  266.559064]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  266.565059]  ? addrconf_rs_timer+0x690/0x690
[  266.569485]  ndisc_alloc_skb+0x144/0x340
[  266.573550]  ndisc_send_rs+0x331/0x6e0
[  266.577442]  addrconf_rs_timer+0x314/0x690
[  266.581683]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.585924]  call_timer_fn+0x272/0x920
[  266.589822]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.594059]  ? process_timeout+0x40/0x40
[  266.598139]  ? mark_held_locks+0xc7/0x130
[  266.602287]  ? _raw_spin_unlock_irq+0x27/0x80
[  266.606934]  ? _raw_spin_unlock_irq+0x27/0x80
[  266.611431]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.615670]  ? lockdep_hardirqs_on+0x296/0x5b0
[  266.620287]  ? trace_hardirqs_on+0xbd/0x310
[  266.624606]  ? kasan_check_read+0x11/0x20
[  266.628749]  ? __run_timers+0x7da/0xc70
[  266.632725]  ? trace_hardirqs_off_caller+0x310/0x310
[  266.637861]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.642115]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.646364]  __run_timers+0x7e5/0xc70
[  266.650178]  ? timer_fixup_init+0x70/0x70
[  266.654343]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  266.659361]  ? zap_class+0x640/0x640
[  266.663110]  ? print_usage_bug+0xc0/0xc0
[  266.667177]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  266.672403]  ? find_held_lock+0x36/0x1c0
[  266.676473]  ? zap_class+0x640/0x640
[  266.680195]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.685738]  ? check_preemption_disabled+0x48/0x280
[  266.690771]  ? __lock_is_held+0xb5/0x140
[  266.694831]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.700368]  ? check_preemption_disabled+0x48/0x280
[  266.705399]  run_timer_softirq+0x52/0xb0
[  266.709464]  ? rcu_read_lock_sched_held+0x14f/0x180
[  266.714480]  __do_softirq+0x308/0xb7e
[  266.718284]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  266.722776]  ? lock_downgrade+0x900/0x900
[  266.726940]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  266.732064]  ? pvclock_read_flags+0x160/0x160
[  266.736585]  ? lapic_next_event+0x5a/0x90
[  266.740737]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.746281]  ? kvm_clock_read+0x18/0x30
[  266.750271]  ? kvm_sched_clock_read+0x9/0x20
[  266.754681]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.760235]  ? check_preemption_disabled+0x48/0x280
[  266.765268]  irq_exit+0x17f/0x1c0
[  266.768725]  smp_apic_timer_interrupt+0x1cb/0x760
[  266.773571]  ? smp_call_function_single_interrupt+0x159/0x650
[  266.779460]  ? smp_call_function_single_interrupt+0x650/0x650
[  266.785345]  ? interrupt_entry+0xb5/0xc0
[  266.789410]  ? trace_hardirqs_off_caller+0xbb/0x310
[  266.794454]  ? trace_hardirqs_off_caller+0xbb/0x310
[  266.799472]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  266.804315]  ? trace_hardirqs_on_caller+0x310/0x310
[  266.809331]  ? trace_hardirqs_on_caller+0x310/0x310
[  266.814345]  ? task_prio+0x50/0x50
[  266.817891]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.823430]  ? check_preemption_disabled+0x48/0x280
[  266.828454]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  266.833302]  apic_timer_interrupt+0xf/0x20
[  266.837554]  </IRQ>
[  266.839794] RIP: 0010:dump_stack+0x358/0x39d
[  266.844246] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  266.863160] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  266.870868] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  266.878230] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  266.885583] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  266.892846] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  266.900155] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  266.907441]  ? dump_stack+0x34f/0x39d
[  266.911257]  ? dump_stack_print_info.cold.1+0x20/0x20
[  266.916450]  ? mark_held_locks+0x130/0x130
[  266.920703]  ? mark_held_locks+0x130/0x130
[  266.924948]  dump_header+0x27b/0xf72
[  266.928739]  ? pagefault_out_of_memory+0x197/0x197
[  266.933692]  ? __lock_acquire+0x62f/0x4c20
[  266.937934]  ? percpu_ref_get_many+0x240/0x240
[  266.942522]  ? print_usage_bug+0xc0/0xc0
[  266.946599]  ? zap_class+0x640/0x640
[  266.950316]  ? print_usage_bug+0xc0/0xc0
[  266.954377]  ? print_usage_bug+0xc0/0xc0
[  266.958444]  ? zap_class+0x640/0x640
[  266.962165]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.967708]  ? find_held_lock+0x36/0x1c0
[  266.971779]  ? mark_held_locks+0xc7/0x130
[  266.975931]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  266.981031]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  266.986134]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  266.990721]  ? trace_hardirqs_on+0xbd/0x310
[  266.995044]  ? kasan_check_read+0x11/0x20
[  266.999189]  ? ___ratelimit+0x3b4/0x672
[  267.003177]  ? trace_hardirqs_off_caller+0x310/0x310
[  267.008278]  ? trace_hardirqs_on+0x310/0x310
[  267.012687]  ? lock_downgrade+0x900/0x900
[  267.016855]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  267.021981]  ? ___ratelimit+0x3b9/0x672
[  267.025974]  ? idr_get_free+0xf70/0xf70
[  267.029956]  ? find_held_lock+0x36/0x1c0
[  267.034046]  oom_kill_process.cold.27+0x10/0x903
[  267.038807]  ? zap_class+0x640/0x640
[  267.042525]  ? check_preemption_disabled+0x48/0x280
[  267.047543]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  267.052471]  ? kasan_check_read+0x11/0x20
[  267.056620]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.061905]  ? oom_evaluate_task+0x540/0x540
[  267.066320]  ? find_held_lock+0x36/0x1c0
[  267.070444]  ? out_of_memory+0x974/0x1430
[  267.074607]  ? lock_downgrade+0x900/0x900
[  267.078758]  ? check_preemption_disabled+0x48/0x280
[  267.083777]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  267.088739]  ? kasan_check_read+0x11/0x20
[  267.092896]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.098172]  ? rcu_softirq_qs+0x20/0x20
[  267.102151]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.107684]  ? oom_evaluate_task+0x302/0x540
[  267.112100]  out_of_memory+0xa84/0x1430
[  267.116086]  ? oom_killer_disable+0x3a0/0x3a0
[  267.120613]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  267.125563]  ? __ww_mutex_check_waiters+0x160/0x160
[  267.130592]  __alloc_pages_slowpath+0x232c/0x2de0
[  267.135463]  ? warn_alloc+0x120/0x120
[  267.139263]  ? mark_held_locks+0x130/0x130
[  267.143501]  ? find_get_entry+0xaae/0x1120
[  267.147745]  ? filemap_map_pages+0x1a20/0x1a20
[  267.152331]  ? zap_class+0x640/0x640
[  267.156057]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.161611]  ? check_preemption_disabled+0x48/0x280
[  267.166660]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.172206]  ? should_fail+0x22d/0xd01
[  267.176104]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  267.181210]  ? zap_class+0x640/0x640
[  267.184946]  ? __lock_is_held+0xb5/0x140
[  267.189016]  ? mark_held_locks+0x130/0x130
[  267.193255]  ? lock_release+0xa00/0xa00
[  267.197232]  ? perf_trace_sched_process_exec+0x860/0x860
[  267.202708]  ? xa_load+0x2ba/0x460
[  267.206252]  ? lock_downgrade+0x900/0x900
[  267.210408]  ? __might_sleep+0x95/0x190
[  267.214385]  __alloc_pages_nodemask+0xad8/0xea0
[  267.219082]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  267.224100]  ? __page_cache_alloc+0x191/0x5c0
[  267.228592]  ? xa_load+0x2e1/0x460
[  267.232132]  ? xa_clear_mark+0x40/0x40
[  267.236020]  ? zap_class+0x640/0x640
[  267.239742]  ? zap_class+0x640/0x640
[  267.243455]  ? zap_class+0x640/0x640
[  267.247170]  ? __do_page_cache_readahead+0x663/0x810
[  267.252309]  ? find_held_lock+0x36/0x1c0
[  267.256375]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  267.261926]  alloc_pages_current+0x173/0x350
[  267.266340]  __page_cache_alloc+0x38c/0x5c0
[  267.270681]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  267.275611]  ? kasan_check_read+0x11/0x20
[  267.279756]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.285034]  ? generic_perform_write+0x6a0/0x6a0
[  267.289789]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.295330]  ? check_preemption_disabled+0x48/0x280
[  267.300351]  filemap_fault+0x1595/0x25f0
[  267.304430]  ? __lock_page_or_retry+0xa00/0xa00
[  267.309127]  ? mark_held_locks+0x130/0x130
[  267.313382]  ? filemap_map_pages+0xd6b/0x1a20
[  267.317893]  ? lock_downgrade+0x900/0x900
[  267.322041]  ? check_preemption_disabled+0x48/0x280
[  267.327056]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  267.332019]  ? kasan_check_read+0x11/0x20
[  267.336171]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.341449]  ? rcu_softirq_qs+0x20/0x20
[  267.345452]  ? filemap_map_pages+0xd92/0x1a20
[  267.349957]  ? find_get_entries_tag+0x1400/0x1400
[  267.354809]  ? debug_object_destroy+0x2b0/0x2b0
[  267.359480]  ? lock_pi_update_atomic+0x150/0x150
[  267.364235]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.369781]  ? lock_acquire+0x1ed/0x520
[  267.373752]  ? ext4_filemap_fault+0x7a/0xad
[  267.378087]  ? lock_release+0xa00/0xa00
[  267.382070]  ? perf_trace_sched_process_exec+0x860/0x860
[  267.387526]  ? print_usage_bug+0xc0/0xc0
[  267.391601]  ? print_usage_bug+0xc0/0xc0
[  267.395674]  ? down_read+0x8d/0x120
[  267.399309]  ? ext4_filemap_fault+0x7a/0xad
[  267.403626]  ? __down_interruptible+0x700/0x700
[  267.408299]  ext4_filemap_fault+0x82/0xad
[  267.412444]  __do_fault+0x100/0x6b0
[  267.416066]  ? find_held_lock+0x36/0x1c0
[  267.420127]  ? pmd_devmap_trans_unstable+0x220/0x220
[  267.425249]  ? mark_held_locks+0x130/0x130
[  267.429486]  ? mark_held_locks+0x130/0x130
[  267.433723]  ? _raw_spin_unlock_irq+0x27/0x80
[  267.438221]  ? _raw_spin_unlock_irq+0x27/0x80
[  267.442722]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  267.447312]  ? kasan_check_read+0x11/0x20
[  267.451460]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.456997]  __handle_mm_fault+0x3ea0/0x5be0
[  267.461414]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  267.466287]  ? finish_task_switch+0x1f4/0x910
[  267.470801]  ? finish_task_switch+0x1b4/0x910
[  267.475342]  ? __switch_to_asm+0x34/0x70
[  267.479411]  ? preempt_notifier_register+0x200/0x200
[  267.484515]  ? __switch_to_asm+0x34/0x70
[  267.488574]  ? __switch_to_asm+0x34/0x70
[  267.492655]  ? zap_class+0x640/0x640
[  267.496399]  ? zap_class+0x640/0x640
[  267.500114]  ? __x64_sys_futex+0x53e/0x6a0
[  267.504385]  ? find_held_lock+0x36/0x1c0
[  267.508469]  ? handle_mm_fault+0x42a/0xc70
[  267.512708]  ? lock_downgrade+0x900/0x900
[  267.516855]  ? check_preemption_disabled+0x48/0x280
[  267.521876]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  267.526835]  ? kasan_check_read+0x11/0x20
[  267.530981]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.536259]  ? rcu_softirq_qs+0x20/0x20
[  267.540235]  ? trace_hardirqs_off_caller+0x310/0x310
[  267.545356]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.550904]  ? check_preemption_disabled+0x48/0x280
[  267.555945]  handle_mm_fault+0x54f/0xc70
[  267.560019]  ? __handle_mm_fault+0x5be0/0x5be0
[  267.564615]  ? find_vma+0x34/0x190
[  267.568173]  __do_page_fault+0x5e8/0xe60
[  267.572234]  ? trace_hardirqs_off+0xb8/0x310
[  267.576650]  do_page_fault+0xf2/0x7e0
[  267.580471]  ? vmalloc_sync_all+0x30/0x30
[  267.584647]  ? error_entry+0x70/0xd0
[  267.588362]  ? trace_hardirqs_off_caller+0xbb/0x310
[  267.593381]  ? trace_hardirqs_on_caller+0xc0/0x310
[  267.598329]  ? syscall_return_slowpath+0x5e0/0x5e0
[  267.603256]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.608105]  ? trace_hardirqs_on_caller+0x310/0x310
[  267.613118]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  267.618573]  ? prepare_exit_to_usermode+0x291/0x3b0
[  267.623616]  ? page_fault+0x8/0x30
[  267.627161]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.632011]  ? page_fault+0x8/0x30
[  267.635550]  page_fault+0x1e/0x30
[  267.639000] RIP: 0033:0x40f9c0
[  267.642217] Code: Bad RIP value.
[  267.645573] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  267.650975] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  267.658246] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  267.665509] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  267.672813] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  267.680080] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  267.687375] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  267.687458] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  267.694128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  267.694136] Call Trace:
[  267.700732] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  267.709981]  dump_stack+0x244/0x39d
[  267.712542] syz-fuzzer cpuset=/ mems_allowed=0
[  267.722759]  ? dump_stack_print_info.cold.1+0x20/0x20
[  267.736124]  warn_alloc.cold.116+0xb7/0x1bd
[  267.740449]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  267.745292]  ? lock_downgrade+0x900/0x900
[  267.749446]  ? trace_hardirqs_off+0xb8/0x310
[  267.753863]  ? trace_hardirqs_off+0xb8/0x310
[  267.758291]  __alloc_pages_slowpath+0x2651/0x2de0
[  267.763163]  ? warn_alloc+0x120/0x120
[  267.766972]  ? print_usage_bug+0xc0/0xc0
[  267.771034]  ? warn_alloc+0x120/0x120
[  267.774841]  ? warn_alloc+0x120/0x120
[  267.778688]  ? print_usage_bug+0xc0/0xc0
[  267.782783]  ? print_usage_bug+0xc0/0xc0
[  267.786845]  ? __lock_acquire+0x62f/0x4c20
[  267.791086]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.796624]  ? should_fail+0x22d/0xd01
[  267.800519]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  267.805626]  ? __lock_acquire+0x62f/0x4c20
[  267.809888]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  267.815001]  ? __lock_acquire+0x62f/0x4c20
[  267.819237]  ? should_fail+0x22d/0xd01
[  267.823124]  ? find_held_lock+0x36/0x1c0
[  267.827196]  ? mark_held_locks+0x130/0x130
[  267.831440]  ? mark_held_locks+0x130/0x130
[  267.835671]  ? zap_class+0x640/0x640
[  267.839391]  ? mark_held_locks+0xc7/0x130
[  267.843543]  ? do_raw_spin_unlock+0xa7/0x330
[  267.847954]  ? zap_class+0x640/0x640
[  267.851679]  ? print_usage_bug+0xc0/0xc0
[  267.855741]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.861299]  ? check_preemption_disabled+0x48/0x280
[  267.866329]  ? __lock_is_held+0xb5/0x140
[  267.870408]  __alloc_pages_nodemask+0xad8/0xea0
[  267.875081]  ? zap_class+0x640/0x640
[  267.878817]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  267.883845]  ? find_held_lock+0x36/0x1c0
[  267.887922]  ? ____cache_alloc_node+0x1c7/0x1e0
[  267.892593]  ? lock_downgrade+0x900/0x900
[  267.896748]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.902291]  cache_grow_begin+0xa5/0x8c0
[  267.906401]  ? do_raw_spin_unlock+0xa7/0x330
[  267.910816]  fallback_alloc+0x204/0x2e0
[  267.914801]  ____cache_alloc_node+0x1c7/0x1e0
[  267.919311]  kmem_cache_alloc_node+0xe3/0x730
[  267.923804]  ? ipv6_get_ifaddr+0x42e/0x620
[  267.928047]  __alloc_skb+0x119/0x770
[  267.931757]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.937071]  ? netdev_alloc_frag+0x1f0/0x1f0
[  267.941477]  ? lock_downgrade+0x900/0x900
[  267.945645]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.951192]  ? refcount_sub_and_test_checked+0x203/0x310
[  267.956673]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  267.962123]  ? addrconf_rs_timer+0x690/0x690
[  267.966541]  ndisc_alloc_skb+0x144/0x340
[  267.970611]  ndisc_send_rs+0x331/0x6e0
[  267.974501]  addrconf_rs_timer+0x314/0x690
[  267.978740]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.982987]  call_timer_fn+0x272/0x920
[  267.986875]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.991123]  ? process_timeout+0x40/0x40
[  267.995196]  ? __run_timers+0x7da/0xc70
[  267.999172]  ? _raw_spin_unlock_irq+0x27/0x80
[  268.003668]  ? _raw_spin_unlock_irq+0x27/0x80
[  268.008160]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.012399]  ? lockdep_hardirqs_on+0x296/0x5b0
[  268.016982]  ? trace_hardirqs_on+0xbd/0x310
[  268.021304]  ? kasan_check_read+0x11/0x20
[  268.025466]  ? __run_timers+0x7da/0xc70
[  268.029442]  ? trace_hardirqs_off_caller+0x310/0x310
[  268.034547]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.038784]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.043030]  __run_timers+0x7e5/0xc70
[  268.046870]  ? timer_fixup_init+0x70/0x70
[  268.051041]  ? _raw_spin_unlock_irq+0x27/0x80
[  268.055551]  ? _raw_spin_unlock_irq+0x27/0x80
[  268.060047]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  268.064639]  ? trace_hardirqs_on+0xbd/0x310
[  268.068960]  ? kasan_check_read+0x11/0x20
[  268.073110]  ? finish_task_switch+0x1f4/0x910
[  268.077607]  ? trace_hardirqs_off_caller+0x310/0x310
[  268.082707]  ? compat_start_thread+0x80/0x80
[  268.087165]  ? pvclock_read_flags+0x160/0x160
[  268.091694]  ? __switch_to_asm+0x34/0x70
[  268.095772]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.101311]  ? check_preemption_disabled+0x48/0x280
[  268.106339]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  268.111886]  ? rcu_pm_notify+0xc0/0xc0
[  268.115780]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.121314]  ? check_preemption_disabled+0x48/0x280
[  268.126340]  run_timer_softirq+0x52/0xb0
[  268.130407]  ? rcu_read_lock_sched_held+0x14f/0x180
[  268.135427]  __do_softirq+0x308/0xb7e
[  268.139249]  ? trace_hardirqs_on_caller+0xc0/0x310
[  268.144180]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  268.149280]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  268.154726]  ? trace_hardirqs_on+0x310/0x310
[  268.159140]  ? schedule+0x108/0x460
[  268.162790]  ? trace_hardirqs_off+0xb8/0x310
[  268.167217]  ? smpboot_thread_fn+0x68b/0xa00
[  268.171623]  ? trace_hardirqs_on+0x310/0x310
[  268.176031]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.181571]  ? check_preemption_disabled+0x48/0x280
[  268.186589]  ? takeover_tasklets+0xa90/0xa90
[  268.191026]  run_ksoftirqd+0x5e/0x100
[  268.194828]  smpboot_thread_fn+0x68b/0xa00
[  268.199070]  ? sort_range+0x30/0x30
[  268.202700]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  268.207804]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.213357]  ? __kthread_parkme+0xfb/0x1a0
[  268.217610]  ? sort_range+0x30/0x30
[  268.221240]  kthread+0x35a/0x440
[  268.224605]  ? kthread_stop+0x900/0x900
[  268.228581]  ret_from_fork+0x3a/0x50
[  268.232312] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  268.232317] warn_alloc_show_mem: 1 callbacks suppressed
[  268.232324] Mem-Info:
[  268.239242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  268.244603] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  268.244603]  active_file:12 inactive_file:14 isolated_file:0
[  268.244603]  unevictable:0 dirty:0 writeback:0 unstable:0
[  268.244603]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  268.244603]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  268.244603]  free:13757 free_pcp:113 free_cma:0
[  268.246979] Call Trace:
[  268.256368] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  268.289415]  <IRQ>
[  268.291982] 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
[  268.319827]  dump_stack+0x244/0x39d
[  268.321951] lowmem_reserve[]: 0 2818 6321 6321
[  268.348058]  ? dump_stack_print_info.cold.1+0x20/0x20
[  268.351672] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  268.356255]  warn_alloc.cold.116+0xb7/0x1bd
[  268.361415] lowmem_reserve[]: 0 0 3503 3503
[  268.388912]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  268.393208] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  268.397539]  ? lock_downgrade+0x900/0x900
[  268.402354] lowmem_reserve[]: 0 0 0 0
[  268.431682]  ? trace_hardirqs_off+0xb8/0x310
[  268.435821] 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
[  268.439620]  ? trace_hardirqs_off+0xb8/0x310
[  268.443997] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  268.457522]  __alloc_pages_slowpath+0x2651/0x2de0
[  268.461943] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  268.477474]  ? warn_alloc+0x120/0x120
[  268.482275] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  268.496840]  ? print_usage_bug+0xc0/0xc0
[  268.500619] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  268.509437]  ? warn_alloc+0x120/0x120
[  268.513474] 4236 total pagecache pages
[  268.522040]  ? warn_alloc+0x120/0x120
[  268.525823] 0 pages in swap cache
[  268.529697]  ? print_usage_bug+0xc0/0xc0
[  268.533489] Swap cache stats: add 0, delete 0, find 0/0
[  268.536957]  ? kvm_clock_read+0x18/0x30
[  268.540996] Free swap  = 0kB
[  268.546361]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  268.550309] Total swap = 0kB
[  268.553327]  ? print_usage_bug+0xc0/0xc0
[  268.558317] 1965979 pages RAM
[  268.561337]  ? __lock_acquire+0x62f/0x4c20
[  268.565601] 0 pages HighMem/MovableOnly
[  268.565610] 342854 pages reserved
[  268.568729]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.572937] 0 pages cma reserved
[  268.576912]  ? should_fail+0x22d/0xd01
[  268.580408] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  268.585857]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.585874]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  268.585907]  ? __lock_acquire+0x62f/0x4c20
[  268.589303] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  268.593130]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  268.599598] ksoftirqd/0 cpuset=/ mems_allowed=0
[  268.604863]  ? __lock_acquire+0x62f/0x4c20
[  268.638401]  ? should_fail+0x22d/0xd01
[  268.642299]  ? rcu_irq_exit+0x1a2/0x390
[  268.646285]  ? mark_held_locks+0x130/0x130
[  268.650528]  ? mark_held_locks+0x130/0x130
[  268.654768]  ? mark_held_locks+0xc7/0x130
[  268.658928]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  268.663963]  ? zap_class+0x640/0x640
[  268.667675]  ? print_usage_bug+0xc0/0xc0
[  268.671753]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.677308]  ? check_preemption_disabled+0x48/0x280
[  268.682359]  ? __lock_is_held+0xb5/0x140
[  268.686430]  __alloc_pages_nodemask+0xad8/0xea0
[  268.691095]  ? zap_class+0x640/0x640
[  268.694831]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  268.699858]  ? find_held_lock+0x36/0x1c0
[  268.703945]  ? ____cache_alloc_node+0x1c7/0x1e0
[  268.708618]  ? lock_downgrade+0x900/0x900
[  268.712777]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.718332]  cache_grow_begin+0xa5/0x8c0
[  268.722398]  ? do_raw_spin_unlock+0xa7/0x330
[  268.726811]  fallback_alloc+0x204/0x2e0
[  268.730791]  ____cache_alloc_node+0x1c7/0x1e0
[  268.735294]  kmem_cache_alloc_node+0xe3/0x730
[  268.739791]  ? ipv6_get_ifaddr+0x42e/0x620
[  268.744037]  __alloc_skb+0x119/0x770
[  268.747749]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.753030]  ? netdev_alloc_frag+0x1f0/0x1f0
[  268.757443]  ? lock_downgrade+0x900/0x900
[  268.761598]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.767133]  ? refcount_sub_and_test_checked+0x203/0x310
[  268.772589]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  268.778044]  ? addrconf_rs_timer+0x690/0x690
[  268.782465]  ndisc_alloc_skb+0x144/0x340
[  268.786532]  ndisc_send_rs+0x331/0x6e0
[  268.790435]  addrconf_rs_timer+0x314/0x690
[  268.794690]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.798939]  call_timer_fn+0x272/0x920
[  268.802827]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.807063]  ? process_timeout+0x40/0x40
[  268.811135]  ? mark_held_locks+0xc7/0x130
[  268.815283]  ? _raw_spin_unlock_irq+0x27/0x80
[  268.819774]  ? _raw_spin_unlock_irq+0x27/0x80
[  268.824269]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.828505]  ? lockdep_hardirqs_on+0x296/0x5b0
[  268.833086]  ? trace_hardirqs_on+0xbd/0x310
[  268.837414]  ? kasan_check_read+0x11/0x20
[  268.841563]  ? __run_timers+0x7da/0xc70
[  268.845552]  ? trace_hardirqs_off_caller+0x310/0x310
[  268.850656]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.854902]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.859136]  __run_timers+0x7e5/0xc70
[  268.862946]  ? timer_fixup_init+0x70/0x70
[  268.867096]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  268.872111]  ? zap_class+0x640/0x640
[  268.875868]  ? print_usage_bug+0xc0/0xc0
[  268.879936]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  268.885141]  ? find_held_lock+0x36/0x1c0
[  268.889227]  ? zap_class+0x640/0x640
[  268.892944]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.898495]  ? check_preemption_disabled+0x48/0x280
[  268.903516]  ? __lock_is_held+0xb5/0x140
[  268.907588]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.913126]  ? check_preemption_disabled+0x48/0x280
[  268.918145]  run_timer_softirq+0x52/0xb0
[  268.922207]  ? rcu_read_lock_sched_held+0x14f/0x180
[  268.927225]  __do_softirq+0x308/0xb7e
[  268.931031]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  268.935553]  ? lock_downgrade+0x900/0x900
[  268.939704]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  268.944832]  ? pvclock_read_flags+0x160/0x160
[  268.949359]  ? lapic_next_event+0x5a/0x90
[  268.953526]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.959079]  ? kvm_clock_read+0x18/0x30
[  268.963066]  ? kvm_sched_clock_read+0x9/0x20
[  268.967479]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.973046]  ? check_preemption_disabled+0x48/0x280
[  268.978072]  irq_exit+0x17f/0x1c0
[  268.981549]  smp_apic_timer_interrupt+0x1cb/0x760
[  268.986397]  ? smp_call_function_single_interrupt+0x159/0x650
[  268.992296]  ? smp_call_function_single_interrupt+0x650/0x650
[  268.998197]  ? interrupt_entry+0xb5/0xc0
[  269.002260]  ? trace_hardirqs_off_caller+0xbb/0x310
[  269.007274]  ? trace_hardirqs_off_caller+0xbb/0x310
[  269.012294]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.017144]  ? trace_hardirqs_on_caller+0x310/0x310
[  269.022155]  ? trace_hardirqs_on_caller+0x310/0x310
[  269.027188]  ? task_prio+0x50/0x50
[  269.030723]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.036280]  ? check_preemption_disabled+0x48/0x280
[  269.041302]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.046151]  apic_timer_interrupt+0xf/0x20
[  269.050378]  </IRQ>
[  269.052620] RIP: 0010:dump_stack+0x358/0x39d
[  269.057028] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  269.075924] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  269.083632] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  269.090918] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  269.098196] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  269.105457] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  269.112742] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  269.120053]  ? dump_stack+0x34f/0x39d
[  269.123862]  ? dump_stack_print_info.cold.1+0x20/0x20
[  269.129059]  ? mark_held_locks+0x130/0x130
[  269.133292]  ? mark_held_locks+0x130/0x130
[  269.137529]  dump_header+0x27b/0xf72
[  269.141255]  ? pagefault_out_of_memory+0x197/0x197
[  269.146193]  ? __lock_acquire+0x62f/0x4c20
[  269.150444]  ? percpu_ref_get_many+0x240/0x240
[  269.155050]  ? print_usage_bug+0xc0/0xc0
[  269.159138]  ? zap_class+0x640/0x640
[  269.162870]  ? print_usage_bug+0xc0/0xc0
[  269.166944]  ? print_usage_bug+0xc0/0xc0
[  269.171009]  ? zap_class+0x640/0x640
[  269.174729]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.180269]  ? find_held_lock+0x36/0x1c0
[  269.184354]  ? mark_held_locks+0xc7/0x130
[  269.188501]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  269.193605]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  269.198707]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  269.203291]  ? trace_hardirqs_on+0xbd/0x310
[  269.207627]  ? kasan_check_read+0x11/0x20
[  269.211800]  ? ___ratelimit+0x3b4/0x672
[  269.215781]  ? trace_hardirqs_off_caller+0x310/0x310
[  269.220902]  ? trace_hardirqs_on+0x310/0x310
[  269.225310]  ? lock_downgrade+0x900/0x900
[  269.229463]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  269.234567]  ? ___ratelimit+0x3b9/0x672
[  269.238543]  ? idr_get_free+0xf70/0xf70
[  269.242515]  ? find_held_lock+0x36/0x1c0
[  269.246583]  oom_kill_process.cold.27+0x10/0x903
[  269.251370]  ? zap_class+0x640/0x640
[  269.255092]  ? check_preemption_disabled+0x48/0x280
[  269.260113]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  269.265046]  ? kasan_check_read+0x11/0x20
[  269.269192]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.274475]  ? oom_evaluate_task+0x540/0x540
[  269.278893]  ? find_held_lock+0x36/0x1c0
[  269.282968]  ? out_of_memory+0x974/0x1430
[  269.287123]  ? lock_downgrade+0x900/0x900
[  269.291275]  ? check_preemption_disabled+0x48/0x280
[  269.296294]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  269.301224]  ? kasan_check_read+0x11/0x20
[  269.305374]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.310671]  ? rcu_softirq_qs+0x20/0x20
[  269.314666]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.320203]  ? oom_evaluate_task+0x302/0x540
[  269.324621]  out_of_memory+0xa84/0x1430
[  269.328621]  ? oom_killer_disable+0x3a0/0x3a0
[  269.333122]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  269.338059]  ? __ww_mutex_check_waiters+0x160/0x160
[  269.343090]  __alloc_pages_slowpath+0x232c/0x2de0
[  269.347963]  ? warn_alloc+0x120/0x120
[  269.351767]  ? mark_held_locks+0x130/0x130
[  269.356008]  ? find_get_entry+0xaae/0x1120
[  269.360254]  ? filemap_map_pages+0x1a20/0x1a20
[  269.364843]  ? zap_class+0x640/0x640
[  269.368562]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.374100]  ? check_preemption_disabled+0x48/0x280
[  269.379118]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.384655]  ? should_fail+0x22d/0xd01
[  269.388547]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  269.393665]  ? zap_class+0x640/0x640
[  269.397411]  ? __lock_is_held+0xb5/0x140
[  269.401480]  ? mark_held_locks+0x130/0x130
[  269.405716]  ? lock_release+0xa00/0xa00
[  269.409693]  ? perf_trace_sched_process_exec+0x860/0x860
[  269.415146]  ? xa_load+0x2ba/0x460
[  269.418708]  ? lock_downgrade+0x900/0x900
[  269.422861]  ? __might_sleep+0x95/0x190
[  269.426855]  __alloc_pages_nodemask+0xad8/0xea0
[  269.431542]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  269.436563]  ? __page_cache_alloc+0x191/0x5c0
[  269.441057]  ? xa_load+0x2e1/0x460
[  269.444607]  ? xa_clear_mark+0x40/0x40
[  269.448760]  ? zap_class+0x640/0x640
[  269.452481]  ? zap_class+0x640/0x640
[  269.456191]  ? zap_class+0x640/0x640
[  269.459908]  ? __do_page_cache_readahead+0x663/0x810
[  269.465020]  ? find_held_lock+0x36/0x1c0
[  269.469087]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  269.474631]  alloc_pages_current+0x173/0x350
[  269.479051]  __page_cache_alloc+0x38c/0x5c0
[  269.483371]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  269.488308]  ? kasan_check_read+0x11/0x20
[  269.492458]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.497751]  ? generic_perform_write+0x6a0/0x6a0
[  269.502523]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.508065]  ? check_preemption_disabled+0x48/0x280
[  269.513086]  filemap_fault+0x1595/0x25f0
[  269.517185]  ? __lock_page_or_retry+0xa00/0xa00
[  269.521850]  ? mark_held_locks+0x130/0x130
[  269.526147]  ? filemap_map_pages+0xd6b/0x1a20
[  269.530674]  ? lock_downgrade+0x900/0x900
[  269.534849]  ? check_preemption_disabled+0x48/0x280
[  269.539891]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  269.544819]  ? kasan_check_read+0x11/0x20
[  269.548967]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.554243]  ? rcu_softirq_qs+0x20/0x20
[  269.558234]  ? filemap_map_pages+0xd92/0x1a20
[  269.562757]  ? find_get_entries_tag+0x1400/0x1400
[  269.567612]  ? debug_object_destroy+0x2b0/0x2b0
[  269.572302]  ? lock_pi_update_atomic+0x150/0x150
[  269.577072]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.582623]  ? lock_acquire+0x1ed/0x520
[  269.586594]  ? ext4_filemap_fault+0x7a/0xad
[  269.590954]  ? lock_release+0xa00/0xa00
[  269.594947]  ? perf_trace_sched_process_exec+0x860/0x860
[  269.600423]  ? print_usage_bug+0xc0/0xc0
[  269.604549]  ? print_usage_bug+0xc0/0xc0
[  269.608647]  ? down_read+0x8d/0x120
[  269.612274]  ? ext4_filemap_fault+0x7a/0xad
[  269.616601]  ? __down_interruptible+0x700/0x700
[  269.621297]  ext4_filemap_fault+0x82/0xad
[  269.625462]  __do_fault+0x100/0x6b0
[  269.629091]  ? find_held_lock+0x36/0x1c0
[  269.633156]  ? pmd_devmap_trans_unstable+0x220/0x220
[  269.638262]  ? mark_held_locks+0x130/0x130
[  269.642502]  ? mark_held_locks+0x130/0x130
[  269.646733]  ? _raw_spin_unlock_irq+0x27/0x80
[  269.651225]  ? _raw_spin_unlock_irq+0x27/0x80
[  269.655721]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  269.660309]  ? kasan_check_read+0x11/0x20
[  269.664461]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.670005]  __handle_mm_fault+0x3ea0/0x5be0
[  269.674439]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  269.679283]  ? finish_task_switch+0x1f4/0x910
[  269.683792]  ? finish_task_switch+0x1b4/0x910
[  269.688289]  ? __switch_to_asm+0x34/0x70
[  269.692351]  ? preempt_notifier_register+0x200/0x200
[  269.697448]  ? __switch_to_asm+0x34/0x70
[  269.701505]  ? __switch_to_asm+0x34/0x70
[  269.705622]  ? zap_class+0x640/0x640
[  269.709334]  ? zap_class+0x640/0x640
[  269.713045]  ? __x64_sys_futex+0x53e/0x6a0
[  269.717284]  ? find_held_lock+0x36/0x1c0
[  269.721359]  ? handle_mm_fault+0x42a/0xc70
[  269.725600]  ? lock_downgrade+0x900/0x900
[  269.729746]  ? check_preemption_disabled+0x48/0x280
[  269.734771]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  269.739700]  ? kasan_check_read+0x11/0x20
[  269.743850]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.749137]  ? rcu_softirq_qs+0x20/0x20
[  269.753111]  ? trace_hardirqs_off_caller+0x310/0x310
[  269.758214]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.763781]  ? check_preemption_disabled+0x48/0x280
[  269.768807]  handle_mm_fault+0x54f/0xc70
[  269.772870]  ? __handle_mm_fault+0x5be0/0x5be0
[  269.777496]  ? find_vma+0x34/0x190
[  269.781042]  __do_page_fault+0x5e8/0xe60
[  269.785112]  ? trace_hardirqs_off+0xb8/0x310
[  269.789532]  do_page_fault+0xf2/0x7e0
[  269.793335]  ? vmalloc_sync_all+0x30/0x30
[  269.797485]  ? error_entry+0x70/0xd0
[  269.801206]  ? trace_hardirqs_off_caller+0xbb/0x310
[  269.806220]  ? trace_hardirqs_on_caller+0xc0/0x310
[  269.811155]  ? syscall_return_slowpath+0x5e0/0x5e0
[  269.816084]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.820931]  ? trace_hardirqs_on_caller+0x310/0x310
[  269.825976]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  269.831451]  ? prepare_exit_to_usermode+0x291/0x3b0
[  269.836507]  ? page_fault+0x8/0x30
[  269.840052]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.844905]  ? page_fault+0x8/0x30
[  269.848445]  page_fault+0x1e/0x30
[  269.851913] RIP: 0033:0x40f9c0
[  269.855118] Code: Bad RIP value.
[  269.858477] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  269.863849] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  269.871119] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  269.878385] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  269.885657] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  269.892922] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  269.900229] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  269.900298] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  269.906983] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  269.906988] Call Trace:
[  269.907007]  dump_stack+0x244/0x39d
[  269.907025]  ? dump_stack_print_info.cold.1+0x20/0x20
[  269.907050]  warn_alloc.cold.116+0xb7/0x1bd
[  269.913614] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  269.922870]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  269.925436] syz-fuzzer cpuset=/ mems_allowed=0
[  269.929050]  ? lock_downgrade+0x900/0x900
[  269.962249]  ? trace_hardirqs_off+0xb8/0x310
[  269.966666]  ? trace_hardirqs_off+0xb8/0x310
[  269.971098]  __alloc_pages_slowpath+0x2651/0x2de0
[  269.975984]  ? warn_alloc+0x120/0x120
[  269.979786]  ? print_usage_bug+0xc0/0xc0
[  269.983848]  ? warn_alloc+0x120/0x120
[  269.987658]  ? warn_alloc+0x120/0x120
[  269.991460]  ? print_usage_bug+0xc0/0xc0
[  269.995526]  ? print_usage_bug+0xc0/0xc0
[  269.999592]  ? __lock_acquire+0x62f/0x4c20
[  270.003832]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.009373]  ? should_fail+0x22d/0xd01
[  270.013265]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  270.018382]  ? __lock_acquire+0x62f/0x4c20
[  270.022625]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  270.027739]  ? __lock_acquire+0x62f/0x4c20
[  270.031971]  ? should_fail+0x22d/0xd01
[  270.035860]  ? find_held_lock+0x36/0x1c0
[  270.039941]  ? mark_held_locks+0x130/0x130
[  270.044180]  ? mark_held_locks+0x130/0x130
[  270.048411]  ? zap_class+0x640/0x640
[  270.052121]  ? zap_class+0x640/0x640
[  270.055857]  ? print_usage_bug+0xc0/0xc0
[  270.059934]  ? do_raw_spin_unlock+0xa7/0x330
[  270.064379]  ? zap_class+0x640/0x640
[  270.068113]  ? print_usage_bug+0xc0/0xc0
[  270.072200]  ? wq_watchdog_touch+0x9c/0xfe
[  270.076452]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.081989]  ? check_preemption_disabled+0x48/0x280
[  270.087023]  ? __lock_is_held+0xb5/0x140
[  270.091092]  __alloc_pages_nodemask+0xad8/0xea0
[  270.095764]  ? zap_class+0x640/0x640
[  270.099480]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  270.104505]  ? find_held_lock+0x36/0x1c0
[  270.108576]  ? ____cache_alloc_node+0x1c7/0x1e0
[  270.113245]  ? lock_downgrade+0x900/0x900
[  270.117398]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.122954]  cache_grow_begin+0xa5/0x8c0
[  270.127014]  ? do_raw_spin_unlock+0xa7/0x330
[  270.131427]  fallback_alloc+0x204/0x2e0
[  270.135409]  ____cache_alloc_node+0x1c7/0x1e0
[  270.139924]  kmem_cache_alloc_node+0xe3/0x730
[  270.144423]  ? ipv6_get_ifaddr+0x42e/0x620
[  270.148690]  __alloc_skb+0x119/0x770
[  270.152400]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.157683]  ? netdev_alloc_frag+0x1f0/0x1f0
[  270.162090]  ? lock_downgrade+0x900/0x900
[  270.166249]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.171788]  ? refcount_sub_and_test_checked+0x203/0x310
[  270.177240]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  270.182706]  ? addrconf_rs_timer+0x690/0x690
[  270.187130]  ndisc_alloc_skb+0x144/0x340
[  270.191198]  ndisc_send_rs+0x331/0x6e0
[  270.195091]  addrconf_rs_timer+0x314/0x690
[  270.199331]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.203580]  call_timer_fn+0x272/0x920
[  270.207466]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.211696]  ? process_timeout+0x40/0x40
[  270.215777]  ? __run_timers+0x7da/0xc70
[  270.219766]  ? _raw_spin_unlock_irq+0x27/0x80
[  270.224272]  ? _raw_spin_unlock_irq+0x27/0x80
[  270.228797]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.233032]  ? lockdep_hardirqs_on+0x296/0x5b0
[  270.237620]  ? trace_hardirqs_on+0xbd/0x310
[  270.241985]  ? kasan_check_read+0x11/0x20
[  270.246161]  ? __run_timers+0x7da/0xc70
[  270.250141]  ? trace_hardirqs_off_caller+0x310/0x310
[  270.255263]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.259503]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.263755]  __run_timers+0x7e5/0xc70
[  270.267590]  ? timer_fixup_init+0x70/0x70
[  270.271734]  ? _raw_spin_unlock_irq+0x27/0x80
[  270.276224]  ? _raw_spin_unlock_irq+0x27/0x80
[  270.280736]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  270.285320]  ? trace_hardirqs_on+0xbd/0x310
[  270.289658]  ? kasan_check_read+0x11/0x20
[  270.293807]  ? finish_task_switch+0x1f4/0x910
[  270.298302]  ? trace_hardirqs_off_caller+0x310/0x310
[  270.303403]  ? compat_start_thread+0x80/0x80
[  270.307853]  ? pvclock_read_flags+0x160/0x160
[  270.312368]  ? __switch_to_asm+0x34/0x70
[  270.316433]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.321973]  ? check_preemption_disabled+0x48/0x280
[  270.327004]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  270.332547]  ? rcu_pm_notify+0xc0/0xc0
[  270.336433]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.341975]  ? check_preemption_disabled+0x48/0x280
[  270.346997]  run_timer_softirq+0x52/0xb0
[  270.351078]  ? rcu_read_lock_sched_held+0x14f/0x180
[  270.356113]  __do_softirq+0x308/0xb7e
[  270.359929]  ? trace_hardirqs_on_caller+0xc0/0x310
[  270.364865]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  270.369982]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  270.375435]  ? trace_hardirqs_on+0x310/0x310
[  270.379864]  ? schedule+0x108/0x460
[  270.383515]  ? trace_hardirqs_off+0xb8/0x310
[  270.387954]  ? smpboot_thread_fn+0x68b/0xa00
[  270.392366]  ? trace_hardirqs_on+0x310/0x310
[  270.396777]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.402313]  ? check_preemption_disabled+0x48/0x280
[  270.407330]  ? takeover_tasklets+0xa90/0xa90
[  270.411742]  run_ksoftirqd+0x5e/0x100
[  270.415542]  smpboot_thread_fn+0x68b/0xa00
[  270.419778]  ? sort_range+0x30/0x30
[  270.423430]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  270.428531]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.434507]  ? __kthread_parkme+0xfb/0x1a0
[  270.438744]  ? sort_range+0x30/0x30
[  270.442368]  kthread+0x35a/0x440
[  270.445778]  ? kthread_stop+0x900/0x900
[  270.449752]  ret_from_fork+0x3a/0x50
[  270.453476] warn_alloc_show_mem: 1 callbacks suppressed
[  270.453488] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  270.453490] Mem-Info:
[  270.453537] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  270.453537]  active_file:12 inactive_file:14 isolated_file:0
[  270.453537]  unevictable:0 dirty:0 writeback:0 unstable:0
[  270.453537]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  270.453537]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  270.453537]  free:13757 free_pcp:113 free_cma:0
[  270.458871] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  270.465808] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  270.468238] Call Trace:
[  270.501374] 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
[  270.510723]  <IRQ>
[  270.538646] lowmem_reserve[]: 0 2818 6321 6321
[  270.541233]  dump_stack+0x244/0x39d
[  270.567477] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  270.569644]  ? dump_stack_print_info.cold.1+0x20/0x20
[  270.574236] lowmem_reserve[]: 0 0 3503 3503
[  270.577877]  warn_alloc.cold.116+0xb7/0x1bd
[  270.605358] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  270.610540]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  270.614833] lowmem_reserve[]: 0 0 0 0
[  270.619166]  ? lock_downgrade+0x900/0x900
[  270.648204] 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
[  270.653043]  ? trace_hardirqs_off+0xb8/0x310
[  270.656817] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  270.661016]  ? trace_hardirqs_off+0xb8/0x310
[  270.674525] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  270.678933]  __alloc_pages_slowpath+0x2651/0x2de0
[  270.694430] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  270.698843]  ? warn_alloc+0x120/0x120
[  270.713371] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  270.718213]  ? warn_alloc+0x120/0x120
[  270.727069] 4236 total pagecache pages
[  270.730878]  ? warn_alloc+0x120/0x120
[  270.739453] 0 pages in swap cache
[  270.743241]  ? print_usage_bug+0xc0/0xc0
[  270.747137] Swap cache stats: add 0, delete 0, find 0/0
[  270.750928]  ? warn_alloc+0x120/0x120
[  270.754356] Free swap  = 0kB
[  270.758414]  ? print_usage_bug+0xc0/0xc0
[  270.763775] Total swap = 0kB
[  270.767571]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.770594] 1965979 pages RAM
[  270.774649]  ? should_fail+0x22d/0xd01
[  270.777643] 0 pages HighMem/MovableOnly
[  270.783188]  ? __lock_acquire+0x62f/0x4c20
[  270.786269] 342854 pages reserved
[  270.790187]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  270.794137] 0 pages cma reserved
[  270.798366]  ? __lock_acquire+0x62f/0x4c20
[  270.801876] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  270.806895]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  270.806908]  ? __lock_acquire+0x62f/0x4c20
[  270.806921]  ? should_fail+0x22d/0xd01
[  270.806943]  ? mark_held_locks+0x130/0x130
[  270.810371] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  270.814548]  ? mark_held_locks+0x130/0x130
[  270.821017] ksoftirqd/0 cpuset=/ mems_allowed=0
[  270.826114]  ? mark_held_locks+0x130/0x130
[  270.861826]  ? zap_class+0x640/0x640
[  270.865540]  ? print_usage_bug+0xc0/0xc0
[  270.869599]  ? mark_held_locks+0x130/0x130
[  270.873830]  ? print_usage_bug+0xc0/0xc0
[  270.877905]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.883446]  ? check_preemption_disabled+0x48/0x280
[  270.888487]  ? __lock_is_held+0xb5/0x140
[  270.892551]  __alloc_pages_nodemask+0xad8/0xea0
[  270.897245]  ? zap_class+0x640/0x640
[  270.900965]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  270.905992]  ? find_held_lock+0x36/0x1c0
[  270.910060]  ? ____cache_alloc_node+0x1c7/0x1e0
[  270.914730]  ? lock_downgrade+0x900/0x900
[  270.918908]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.924455]  cache_grow_begin+0xa5/0x8c0
[  270.928513]  ? do_raw_spin_unlock+0xa7/0x330
[  270.932926]  fallback_alloc+0x204/0x2e0
[  270.936941]  ____cache_alloc_node+0x1c7/0x1e0
[  270.941443]  kmem_cache_alloc_node+0xe3/0x730
[  270.945938]  ? ipv6_get_ifaddr+0x42e/0x620
[  270.950196]  __alloc_skb+0x119/0x770
[  270.953910]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.959197]  ? netdev_alloc_frag+0x1f0/0x1f0
[  270.963608]  ? lock_downgrade+0x900/0x900
[  270.967761]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.973300]  ? refcount_sub_and_test_checked+0x203/0x310
[  270.978757]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  270.984208]  ? addrconf_rs_timer+0x690/0x690
[  270.988657]  ndisc_alloc_skb+0x144/0x340
[  270.992725]  ndisc_send_rs+0x331/0x6e0
[  270.996616]  addrconf_rs_timer+0x314/0x690
[  271.000853]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.005118]  call_timer_fn+0x272/0x920
[  271.009024]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.013258]  ? process_timeout+0x40/0x40
[  271.017326]  ? mark_held_locks+0xc7/0x130
[  271.021488]  ? _raw_spin_unlock_irq+0x27/0x80
[  271.025979]  ? _raw_spin_unlock_irq+0x27/0x80
[  271.030473]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.034719]  ? lockdep_hardirqs_on+0x296/0x5b0
[  271.039306]  ? trace_hardirqs_on+0xbd/0x310
[  271.043628]  ? kasan_check_read+0x11/0x20
[  271.047775]  ? __run_timers+0x7da/0xc70
[  271.051750]  ? trace_hardirqs_off_caller+0x310/0x310
[  271.056901]  ? tcp_compressed_ack_kick+0x220/0x220
[  271.061838]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.066071]  __run_timers+0x7e5/0xc70
[  271.069893]  ? timer_fixup_init+0x70/0x70
[  271.074077]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  271.079094]  ? zap_class+0x640/0x640
[  271.082811]  ? print_usage_bug+0xc0/0xc0
[  271.086897]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  271.092108]  ? find_held_lock+0x36/0x1c0
[  271.096214]  ? zap_class+0x640/0x640
[  271.099934]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.105503]  ? check_preemption_disabled+0x48/0x280
[  271.110536]  ? __lock_is_held+0xb5/0x140
[  271.114598]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.120133]  ? check_preemption_disabled+0x48/0x280
[  271.125169]  run_timer_softirq+0x52/0xb0
[  271.129244]  ? rcu_read_lock_sched_held+0x14f/0x180
[  271.134264]  __do_softirq+0x308/0xb7e
[  271.138069]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  271.142567]  ? lock_downgrade+0x900/0x900
[  271.146719]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  271.151832]  ? pvclock_read_flags+0x160/0x160
[  271.156340]  ? lapic_next_event+0x5a/0x90
[  271.160494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.166040]  ? kvm_clock_read+0x18/0x30
[  271.170019]  ? kvm_sched_clock_read+0x9/0x20
[  271.174448]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.179986]  ? check_preemption_disabled+0x48/0x280
[  271.185015]  irq_exit+0x17f/0x1c0
[  271.188474]  smp_apic_timer_interrupt+0x1cb/0x760
[  271.193326]  ? smp_call_function_single_interrupt+0x159/0x650
[  271.199222]  ? smp_call_function_single_interrupt+0x650/0x650
[  271.205120]  ? interrupt_entry+0xb5/0xc0
[  271.209182]  ? trace_hardirqs_off_caller+0xbb/0x310
[  271.214196]  ? trace_hardirqs_off_caller+0xbb/0x310
[  271.219212]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.224063]  ? trace_hardirqs_on_caller+0x310/0x310
[  271.229074]  ? trace_hardirqs_on_caller+0x310/0x310
[  271.234086]  ? task_prio+0x50/0x50
[  271.237633]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.243172]  ? check_preemption_disabled+0x48/0x280
[  271.248239]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.253118]  apic_timer_interrupt+0xf/0x20
[  271.257360]  </IRQ>
[  271.259604] RIP: 0010:dump_stack+0x358/0x39d
[  271.264017] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  271.282914] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  271.290631] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  271.297900] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  271.305169] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  271.312468] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  271.319734] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  271.327016]  ? dump_stack+0x34f/0x39d
[  271.330827]  ? dump_stack_print_info.cold.1+0x20/0x20
[  271.336014]  ? mark_held_locks+0x130/0x130
[  271.340247]  ? mark_held_locks+0x130/0x130
[  271.344490]  dump_header+0x27b/0xf72
[  271.348212]  ? pagefault_out_of_memory+0x197/0x197
[  271.353161]  ? __lock_acquire+0x62f/0x4c20
[  271.357487]  ? percpu_ref_get_many+0x240/0x240
[  271.362073]  ? print_usage_bug+0xc0/0xc0
[  271.366140]  ? zap_class+0x640/0x640
[  271.369859]  ? print_usage_bug+0xc0/0xc0
[  271.373924]  ? print_usage_bug+0xc0/0xc0
[  271.377998]  ? zap_class+0x640/0x640
[  271.381722]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.387276]  ? find_held_lock+0x36/0x1c0
[  271.391351]  ? mark_held_locks+0xc7/0x130
[  271.395504]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  271.400619]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  271.405723]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  271.410305]  ? trace_hardirqs_on+0xbd/0x310
[  271.414652]  ? kasan_check_read+0x11/0x20
[  271.418797]  ? ___ratelimit+0x3b4/0x672
[  271.422780]  ? trace_hardirqs_off_caller+0x310/0x310
[  271.427892]  ? trace_hardirqs_on+0x310/0x310
[  271.432361]  ? lock_downgrade+0x900/0x900
[  271.436550]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  271.441698]  ? ___ratelimit+0x3b9/0x672
[  271.445700]  ? idr_get_free+0xf70/0xf70
[  271.449677]  ? find_held_lock+0x36/0x1c0
[  271.453745]  oom_kill_process.cold.27+0x10/0x903
[  271.458504]  ? zap_class+0x640/0x640
[  271.462235]  ? check_preemption_disabled+0x48/0x280
[  271.467256]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  271.472192]  ? kasan_check_read+0x11/0x20
[  271.476340]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.481616]  ? oom_evaluate_task+0x540/0x540
[  271.486054]  ? find_held_lock+0x36/0x1c0
[  271.490125]  ? out_of_memory+0x974/0x1430
[  271.494289]  ? lock_downgrade+0x900/0x900
[  271.498451]  ? check_preemption_disabled+0x48/0x280
[  271.503473]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  271.508407]  ? kasan_check_read+0x11/0x20
[  271.512557]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.517835]  ? rcu_softirq_qs+0x20/0x20
[  271.521834]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.527371]  ? oom_evaluate_task+0x302/0x540
[  271.531783]  out_of_memory+0xa84/0x1430
[  271.535762]  ? oom_killer_disable+0x3a0/0x3a0
[  271.540258]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  271.545221]  ? __ww_mutex_check_waiters+0x160/0x160
[  271.550248]  __alloc_pages_slowpath+0x232c/0x2de0
[  271.555122]  ? warn_alloc+0x120/0x120
[  271.558920]  ? mark_held_locks+0x130/0x130
[  271.563158]  ? find_get_entry+0xaae/0x1120
[  271.567405]  ? filemap_map_pages+0x1a20/0x1a20
[  271.571990]  ? zap_class+0x640/0x640
[  271.575712]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.581252]  ? check_preemption_disabled+0x48/0x280
[  271.586266]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.591820]  ? should_fail+0x22d/0xd01
[  271.595718]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  271.600823]  ? zap_class+0x640/0x640
[  271.604563]  ? __lock_is_held+0xb5/0x140
[  271.608632]  ? mark_held_locks+0x130/0x130
[  271.612865]  ? lock_release+0xa00/0xa00
[  271.616849]  ? perf_trace_sched_process_exec+0x860/0x860
[  271.622303]  ? xa_load+0x2ba/0x460
[  271.625848]  ? lock_downgrade+0x900/0x900
[  271.630006]  ? __might_sleep+0x95/0x190
[  271.633986]  __alloc_pages_nodemask+0xad8/0xea0
[  271.638660]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  271.643690]  ? __page_cache_alloc+0x191/0x5c0
[  271.648182]  ? xa_load+0x2e1/0x460
[  271.651727]  ? xa_clear_mark+0x40/0x40
[  271.655635]  ? zap_class+0x640/0x640
[  271.659358]  ? zap_class+0x640/0x640
[  271.663069]  ? zap_class+0x640/0x640
[  271.666784]  ? __do_page_cache_readahead+0x663/0x810
[  271.671899]  ? find_held_lock+0x36/0x1c0
[  271.675971]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  271.681520]  alloc_pages_current+0x173/0x350
[  271.685944]  __page_cache_alloc+0x38c/0x5c0
[  271.690269]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  271.695211]  ? kasan_check_read+0x11/0x20
[  271.699359]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.704649]  ? generic_perform_write+0x6a0/0x6a0
[  271.709413]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.714966]  ? check_preemption_disabled+0x48/0x280
[  271.719993]  filemap_fault+0x1595/0x25f0
[  271.724072]  ? __lock_page_or_retry+0xa00/0xa00
[  271.728759]  ? mark_held_locks+0x130/0x130
[  271.733004]  ? filemap_map_pages+0xd6b/0x1a20
[  271.737504]  ? lock_downgrade+0x900/0x900
[  271.741653]  ? check_preemption_disabled+0x48/0x280
[  271.746671]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  271.751599]  ? kasan_check_read+0x11/0x20
[  271.755758]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.761030]  ? rcu_softirq_qs+0x20/0x20
[  271.765031]  ? filemap_map_pages+0xd92/0x1a20
[  271.769556]  ? find_get_entries_tag+0x1400/0x1400
[  271.774406]  ? debug_object_destroy+0x2b0/0x2b0
[  271.779078]  ? lock_pi_update_atomic+0x150/0x150
[  271.783835]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.789400]  ? lock_acquire+0x1ed/0x520
[  271.793370]  ? ext4_filemap_fault+0x7a/0xad
[  271.797703]  ? lock_release+0xa00/0xa00
[  271.801688]  ? perf_trace_sched_process_exec+0x860/0x860
[  271.807166]  ? print_usage_bug+0xc0/0xc0
[  271.811228]  ? print_usage_bug+0xc0/0xc0
[  271.815317]  ? down_read+0x8d/0x120
[  271.818945]  ? ext4_filemap_fault+0x7a/0xad
[  271.823281]  ? __down_interruptible+0x700/0x700
[  271.827959]  ext4_filemap_fault+0x82/0xad
[  271.832108]  __do_fault+0x100/0x6b0
[  271.835749]  ? find_held_lock+0x36/0x1c0
[  271.839811]  ? pmd_devmap_trans_unstable+0x220/0x220
[  271.844920]  ? mark_held_locks+0x130/0x130
[  271.849159]  ? mark_held_locks+0x130/0x130
[  271.853397]  ? _raw_spin_unlock_irq+0x27/0x80
[  271.857904]  ? _raw_spin_unlock_irq+0x27/0x80
[  271.862422]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  271.867012]  ? kasan_check_read+0x11/0x20
[  271.871196]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.876739]  __handle_mm_fault+0x3ea0/0x5be0
[  271.881174]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  271.886022]  ? finish_task_switch+0x1f4/0x910
[  271.890532]  ? finish_task_switch+0x1b4/0x910
[  271.895027]  ? __switch_to_asm+0x34/0x70
[  271.899091]  ? preempt_notifier_register+0x200/0x200
[  271.904190]  ? __switch_to_asm+0x34/0x70
[  271.908253]  ? __switch_to_asm+0x34/0x70
[  271.912327]  ? zap_class+0x640/0x640
[  271.916040]  ? zap_class+0x640/0x640
[  271.919751]  ? __x64_sys_futex+0x53e/0x6a0
[  271.923993]  ? find_held_lock+0x36/0x1c0
[  271.928073]  ? handle_mm_fault+0x42a/0xc70
[  271.932323]  ? lock_downgrade+0x900/0x900
[  271.936469]  ? check_preemption_disabled+0x48/0x280
[  271.941488]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  271.946423]  ? kasan_check_read+0x11/0x20
[  271.950589]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.955866]  ? rcu_softirq_qs+0x20/0x20
[  271.959846]  ? trace_hardirqs_off_caller+0x310/0x310
[  271.964947]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.970499]  ? check_preemption_disabled+0x48/0x280
[  271.975525]  handle_mm_fault+0x54f/0xc70
[  271.979592]  ? __handle_mm_fault+0x5be0/0x5be0
[  271.984193]  ? find_vma+0x34/0x190
[  271.987740]  __do_page_fault+0x5e8/0xe60
[  271.991816]  ? trace_hardirqs_off+0xb8/0x310
[  271.996232]  do_page_fault+0xf2/0x7e0
[  272.000032]  ? vmalloc_sync_all+0x30/0x30
[  272.004180]  ? error_entry+0x70/0xd0
[  272.007902]  ? trace_hardirqs_off_caller+0xbb/0x310
[  272.012932]  ? trace_hardirqs_on_caller+0xc0/0x310
[  272.017866]  ? syscall_return_slowpath+0x5e0/0x5e0
[  272.022805]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  272.027649]  ? trace_hardirqs_on_caller+0x310/0x310
[  272.032668]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  272.038124]  ? prepare_exit_to_usermode+0x291/0x3b0
[  272.043150]  ? page_fault+0x8/0x30
[  272.046711]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  272.051554]  ? page_fault+0x8/0x30
[  272.055112]  page_fault+0x1e/0x30
[  272.058592] RIP: 0033:0x40f9c0
[  272.061794] Code: Bad RIP value.
[  272.065158] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  272.070532] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  272.077816] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  272.085082] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  272.092348] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  272.099615] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  272.106926] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  272.106991] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  272.113680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  272.113689] Call Trace:
[  272.120268] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  272.129535]  dump_stack+0x244/0x39d
[  272.132098] syz-fuzzer cpuset=/ mems_allowed=0
[  272.142319]  ? dump_stack_print_info.cold.1+0x20/0x20
[  272.155691]  warn_alloc.cold.116+0xb7/0x1bd
[  272.160032]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  272.164898]  ? lock_downgrade+0x900/0x900
[  272.169057]  ? trace_hardirqs_off+0xb8/0x310
[  272.173471]  ? trace_hardirqs_off+0xb8/0x310
[  272.177918]  __alloc_pages_slowpath+0x2651/0x2de0
[  272.182821]  ? warn_alloc+0x120/0x120
[  272.186657]  ? print_usage_bug+0xc0/0xc0
[  272.190717]  ? warn_alloc+0x120/0x120
[  272.194524]  ? warn_alloc+0x120/0x120
[  272.198326]  ? print_usage_bug+0xc0/0xc0
[  272.202390]  ? print_usage_bug+0xc0/0xc0
[  272.206453]  ? __lock_acquire+0x62f/0x4c20
[  272.210695]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.216232]  ? should_fail+0x22d/0xd01
[  272.220141]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  272.225250]  ? __lock_acquire+0x62f/0x4c20
[  272.229489]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  272.234599]  ? __lock_acquire+0x62f/0x4c20
[  272.238834]  ? should_fail+0x22d/0xd01
[  272.242717]  ? find_held_lock+0x36/0x1c0
[  272.246794]  ? mark_held_locks+0x130/0x130
[  272.251034]  ? mark_held_locks+0x130/0x130
[  272.255275]  ? zap_class+0x640/0x640
[  272.258992]  ? zap_class+0x640/0x640
[  272.262710]  ? print_usage_bug+0xc0/0xc0
[  272.266785]  ? do_raw_spin_unlock+0xa7/0x330
[  272.271209]  ? zap_class+0x640/0x640
[  272.274944]  ? print_usage_bug+0xc0/0xc0
[  272.279008]  ? wq_watchdog_touch+0x9c/0xfe
[  272.283262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.288798]  ? check_preemption_disabled+0x48/0x280
[  272.293825]  ? __lock_is_held+0xb5/0x140
[  272.297909]  __alloc_pages_nodemask+0xad8/0xea0
[  272.302581]  ? zap_class+0x640/0x640
[  272.306304]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  272.311330]  ? find_held_lock+0x36/0x1c0
[  272.315400]  ? ____cache_alloc_node+0x1c7/0x1e0
[  272.320081]  ? lock_downgrade+0x900/0x900
[  272.324250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.329800]  cache_grow_begin+0xa5/0x8c0
[  272.333904]  ? do_raw_spin_unlock+0xa7/0x330
[  272.338333]  fallback_alloc+0x204/0x2e0
[  272.342314]  ____cache_alloc_node+0x1c7/0x1e0
[  272.346817]  kmem_cache_alloc_node+0xe3/0x730
[  272.351316]  ? ipv6_get_ifaddr+0x42e/0x620
[  272.355562]  __alloc_skb+0x119/0x770
[  272.359273]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.364552]  ? netdev_alloc_frag+0x1f0/0x1f0
[  272.368961]  ? lock_downgrade+0x900/0x900
[  272.373143]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.378692]  ? refcount_sub_and_test_checked+0x203/0x310
[  272.384160]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  272.389620]  ? addrconf_rs_timer+0x690/0x690
[  272.394039]  ndisc_alloc_skb+0x144/0x340
[  272.398159]  ndisc_send_rs+0x331/0x6e0
[  272.402079]  addrconf_rs_timer+0x314/0x690
[  272.406337]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.410580]  call_timer_fn+0x272/0x920
[  272.414461]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.418701]  ? process_timeout+0x40/0x40
[  272.422777]  ? __run_timers+0x7da/0xc70
[  272.426752]  ? _raw_spin_unlock_irq+0x27/0x80
[  272.431762]  ? _raw_spin_unlock_irq+0x27/0x80
[  272.436267]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.440517]  ? lockdep_hardirqs_on+0x296/0x5b0
[  272.445103]  ? trace_hardirqs_on+0xbd/0x310
[  272.449426]  ? kasan_check_read+0x11/0x20
[  272.453576]  ? __run_timers+0x7da/0xc70
[  272.457552]  ? trace_hardirqs_off_caller+0x310/0x310
[  272.462661]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.466913]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.471174]  __run_timers+0x7e5/0xc70
[  272.474985]  ? timer_fixup_init+0x70/0x70
[  272.479132]  ? _raw_spin_unlock_irq+0x27/0x80
[  272.483640]  ? _raw_spin_unlock_irq+0x27/0x80
[  272.488135]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  272.492737]  ? trace_hardirqs_on+0xbd/0x310
[  272.497057]  ? kasan_check_read+0x11/0x20
[  272.501207]  ? finish_task_switch+0x1f4/0x910
[  272.505713]  ? trace_hardirqs_off_caller+0x310/0x310
[  272.510817]  ? compat_start_thread+0x80/0x80
[  272.515259]  ? pvclock_read_flags+0x160/0x160
[  272.519765]  ? __switch_to_asm+0x34/0x70
[  272.523840]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.529376]  ? check_preemption_disabled+0x48/0x280
[  272.534440]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  272.539992]  ? rcu_pm_notify+0xc0/0xc0
[  272.543898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.549441]  ? check_preemption_disabled+0x48/0x280
[  272.554495]  run_timer_softirq+0x52/0xb0
[  272.558578]  ? rcu_read_lock_sched_held+0x14f/0x180
[  272.563793]  __do_softirq+0x308/0xb7e
[  272.567599]  ? trace_hardirqs_on_caller+0xc0/0x310
[  272.572546]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  272.577663]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  272.583110]  ? trace_hardirqs_on+0x310/0x310
[  272.587524]  ? schedule+0x108/0x460
[  272.591188]  ? trace_hardirqs_off+0xb8/0x310
[  272.595596]  ? smpboot_thread_fn+0x68b/0xa00
[  272.600008]  ? trace_hardirqs_on+0x310/0x310
[  272.604416]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.609972]  ? check_preemption_disabled+0x48/0x280
[  272.615016]  ? takeover_tasklets+0xa90/0xa90
[  272.619441]  run_ksoftirqd+0x5e/0x100
[  272.623280]  smpboot_thread_fn+0x68b/0xa00
[  272.627522]  ? sort_range+0x30/0x30
[  272.631148]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  272.636253]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.641789]  ? __kthread_parkme+0xfb/0x1a0
[  272.646028]  ? sort_range+0x30/0x30
[  272.649653]  kthread+0x35a/0x440
[  272.653068]  ? kthread_stop+0x900/0x900
[  272.657055]  ret_from_fork+0x3a/0x50
[  272.660783] warn_alloc_show_mem: 1 callbacks suppressed
[  272.660795] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  272.660796] Mem-Info:
[  272.660828] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  272.660828]  active_file:12 inactive_file:14 isolated_file:0
[  272.660828]  unevictable:0 dirty:0 writeback:0 unstable:0
[  272.660828]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  272.660828]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  272.660828]  free:13757 free_pcp:113 free_cma:0
[  272.666163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  272.673097] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  272.675513] Call Trace:
[  272.708612] 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
[  272.717963]  <IRQ>
[  272.745785] lowmem_reserve[]: 0 2818 6321 6321
[  272.748379]  dump_stack+0x244/0x39d
[  272.774586] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  272.776731]  ? dump_stack_print_info.cold.1+0x20/0x20
[  272.781294] lowmem_reserve[]: 0 0 3503 3503
[  272.784935]  warn_alloc.cold.116+0xb7/0x1bd
[  272.812412] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  272.817620]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  272.822006] lowmem_reserve[]: 0 0 0 0
[  272.826323]  ? lock_downgrade+0x900/0x900
[  272.855358] 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
[  272.860202]  ? trace_hardirqs_off+0xb8/0x310
[  272.864075] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  272.868229]  ? trace_hardirqs_off+0xb8/0x310
[  272.881838] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  272.886245]  __alloc_pages_slowpath+0x2651/0x2de0
[  272.901740] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  272.906157]  ? warn_alloc+0x120/0x120
[  272.920683] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  272.925515]  ? print_usage_bug+0xc0/0xc0
[  272.934434] 4236 total pagecache pages
[  272.938242]  ? warn_alloc+0x120/0x120
[  272.946804] 0 pages in swap cache
[  272.950852]  ? warn_alloc+0x120/0x120
[  272.954724] Swap cache stats: add 0, delete 0, find 0/0
[  272.958512]  ? print_usage_bug+0xc0/0xc0
[  272.961941] Free swap  = 0kB
[  272.965736]  ? kvm_clock_read+0x18/0x30
[  272.971072] Total swap = 0kB
[  272.975127]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  272.978122] 1965979 pages RAM
[  272.982089]  ? print_usage_bug+0xc0/0xc0
[  272.985086] 0 pages HighMem/MovableOnly
[  272.990108]  ? __lock_acquire+0x62f/0x4c20
[  272.993193] 342854 pages reserved
[  272.997250]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.001202] 0 pages cma reserved
[  273.005458]  ? should_fail+0x22d/0xd01
[  273.009003] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  273.014458]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.014475]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  273.014491]  ? __lock_acquire+0x62f/0x4c20
[  273.017903] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  273.021715]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  273.028184] ksoftirqd/0 cpuset=/ mems_allowed=0
[  273.033453]  ? __lock_acquire+0x62f/0x4c20
[  273.067071]  ? should_fail+0x22d/0xd01
[  273.070971]  ? rcu_irq_exit+0x1a2/0x390
[  273.074979]  ? mark_held_locks+0x130/0x130
[  273.079237]  ? mark_held_locks+0x130/0x130
[  273.083491]  ? mark_held_locks+0xc7/0x130
[  273.087647]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  273.092664]  ? zap_class+0x640/0x640
[  273.096422]  ? print_usage_bug+0xc0/0xc0
[  273.100519]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.106058]  ? check_preemption_disabled+0x48/0x280
[  273.111100]  ? __lock_is_held+0xb5/0x140
[  273.115173]  __alloc_pages_nodemask+0xad8/0xea0
[  273.119851]  ? zap_class+0x640/0x640
[  273.123617]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  273.128647]  ? find_held_lock+0x36/0x1c0
[  273.132783]  ? ____cache_alloc_node+0x1c7/0x1e0
[  273.137453]  ? lock_downgrade+0x900/0x900
[  273.141625]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.147176]  cache_grow_begin+0xa5/0x8c0
[  273.151243]  ? do_raw_spin_unlock+0xa7/0x330
[  273.155673]  fallback_alloc+0x204/0x2e0
[  273.159655]  ____cache_alloc_node+0x1c7/0x1e0
[  273.164160]  kmem_cache_alloc_node+0xe3/0x730
[  273.168657]  ? ipv6_get_ifaddr+0x42e/0x620
[  273.172928]  __alloc_skb+0x119/0x770
[  273.176671]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.181983]  ? netdev_alloc_frag+0x1f0/0x1f0
[  273.186397]  ? lock_downgrade+0x900/0x900
[  273.190553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.196094]  ? refcount_sub_and_test_checked+0x203/0x310
[  273.201546]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  273.206995]  ? addrconf_rs_timer+0x690/0x690
[  273.211420]  ndisc_alloc_skb+0x144/0x340
[  273.215487]  ndisc_send_rs+0x331/0x6e0
[  273.219378]  addrconf_rs_timer+0x314/0x690
[  273.223622]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.227867]  call_timer_fn+0x272/0x920
[  273.231769]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.236003]  ? process_timeout+0x40/0x40
[  273.240073]  ? mark_held_locks+0xc7/0x130
[  273.244225]  ? _raw_spin_unlock_irq+0x27/0x80
[  273.248718]  ? _raw_spin_unlock_irq+0x27/0x80
[  273.253211]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.257464]  ? lockdep_hardirqs_on+0x296/0x5b0
[  273.262050]  ? trace_hardirqs_on+0xbd/0x310
[  273.266385]  ? kasan_check_read+0x11/0x20
[  273.270536]  ? __run_timers+0x7da/0xc70
[  273.274512]  ? trace_hardirqs_off_caller+0x310/0x310
[  273.279619]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.283893]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.288127]  __run_timers+0x7e5/0xc70
[  273.291984]  ? timer_fixup_init+0x70/0x70
[  273.296136]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  273.301171]  ? zap_class+0x640/0x640
[  273.304897]  ? print_usage_bug+0xc0/0xc0
[  273.308963]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  273.314178]  ? find_held_lock+0x36/0x1c0
[  273.318244]  ? zap_class+0x640/0x640
[  273.321959]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.327494]  ? check_preemption_disabled+0x48/0x280
[  273.332519]  ? __lock_is_held+0xb5/0x140
[  273.336603]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.342140]  ? check_preemption_disabled+0x48/0x280
[  273.347166]  run_timer_softirq+0x52/0xb0
[  273.351233]  ? rcu_read_lock_sched_held+0x14f/0x180
[  273.356248]  __do_softirq+0x308/0xb7e
[  273.360047]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  273.364553]  ? lock_downgrade+0x900/0x900
[  273.368703]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  273.373845]  ? pvclock_read_flags+0x160/0x160
[  273.378347]  ? lapic_next_event+0x5a/0x90
[  273.382496]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.388038]  ? kvm_clock_read+0x18/0x30
[  273.392011]  ? kvm_sched_clock_read+0x9/0x20
[  273.396423]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.401965]  ? check_preemption_disabled+0x48/0x280
[  273.407007]  irq_exit+0x17f/0x1c0
[  273.410465]  smp_apic_timer_interrupt+0x1cb/0x760
[  273.415306]  ? smp_call_function_single_interrupt+0x159/0x650
[  273.421194]  ? smp_call_function_single_interrupt+0x650/0x650
[  273.427081]  ? interrupt_entry+0xb5/0xc0
[  273.431144]  ? trace_hardirqs_off_caller+0xbb/0x310
[  273.436161]  ? trace_hardirqs_off_caller+0xbb/0x310
[  273.441180]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.446021]  ? trace_hardirqs_on_caller+0x310/0x310
[  273.451031]  ? trace_hardirqs_on_caller+0x310/0x310
[  273.456072]  ? task_prio+0x50/0x50
[  273.459609]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.465142]  ? check_preemption_disabled+0x48/0x280
[  273.470165]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.475017]  apic_timer_interrupt+0xf/0x20
[  273.479242]  </IRQ>
[  273.481495] RIP: 0010:dump_stack+0x358/0x39d
[  273.485906] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  273.504818] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  273.512559] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  273.519871] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  273.527177] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  273.534447] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  273.541711] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  273.549008]  ? dump_stack+0x34f/0x39d
[  273.552824]  ? dump_stack_print_info.cold.1+0x20/0x20
[  273.558015]  ? mark_held_locks+0x130/0x130
[  273.562253]  ? mark_held_locks+0x130/0x130
[  273.566490]  dump_header+0x27b/0xf72
[  273.570217]  ? pagefault_out_of_memory+0x197/0x197
[  273.575153]  ? __lock_acquire+0x62f/0x4c20
[  273.579422]  ? percpu_ref_get_many+0x240/0x240
[  273.584022]  ? print_usage_bug+0xc0/0xc0
[  273.588135]  ? zap_class+0x640/0x640
[  273.591862]  ? print_usage_bug+0xc0/0xc0
[  273.595926]  ? print_usage_bug+0xc0/0xc0
[  273.599986]  ? zap_class+0x640/0x640
[  273.603703]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.609245]  ? find_held_lock+0x36/0x1c0
[  273.613313]  ? mark_held_locks+0xc7/0x130
[  273.617463]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  273.622567]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  273.627672]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  273.632255]  ? trace_hardirqs_on+0xbd/0x310
[  273.636607]  ? kasan_check_read+0x11/0x20
[  273.640767]  ? ___ratelimit+0x3b4/0x672
[  273.644741]  ? trace_hardirqs_off_caller+0x310/0x310
[  273.649844]  ? trace_hardirqs_on+0x310/0x310
[  273.654255]  ? lock_downgrade+0x900/0x900
[  273.658417]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  273.663525]  ? ___ratelimit+0x3b9/0x672
[  273.667515]  ? idr_get_free+0xf70/0xf70
[  273.671491]  ? find_held_lock+0x36/0x1c0
[  273.675562]  oom_kill_process.cold.27+0x10/0x903
[  273.680317]  ? zap_class+0x640/0x640
[  273.684030]  ? check_preemption_disabled+0x48/0x280
[  273.689052]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  273.693980]  ? kasan_check_read+0x11/0x20
[  273.698123]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.703417]  ? oom_evaluate_task+0x540/0x540
[  273.707826]  ? find_held_lock+0x36/0x1c0
[  273.711900]  ? out_of_memory+0x974/0x1430
[  273.716072]  ? lock_downgrade+0x900/0x900
[  273.720220]  ? check_preemption_disabled+0x48/0x280
[  273.725236]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  273.730161]  ? kasan_check_read+0x11/0x20
[  273.734303]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.739576]  ? rcu_softirq_qs+0x20/0x20
[  273.743558]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.749093]  ? oom_evaluate_task+0x302/0x540
[  273.753507]  out_of_memory+0xa84/0x1430
[  273.757488]  ? oom_killer_disable+0x3a0/0x3a0
[  273.762098]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  273.767031]  ? __ww_mutex_check_waiters+0x160/0x160
[  273.772063]  __alloc_pages_slowpath+0x232c/0x2de0
[  273.776951]  ? warn_alloc+0x120/0x120
[  273.780753]  ? mark_held_locks+0x130/0x130
[  273.784997]  ? find_get_entry+0xaae/0x1120
[  273.789238]  ? filemap_map_pages+0x1a20/0x1a20
[  273.793856]  ? zap_class+0x640/0x640
[  273.797588]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.803126]  ? check_preemption_disabled+0x48/0x280
[  273.808142]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.813724]  ? should_fail+0x22d/0xd01
[  273.817633]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  273.822738]  ? zap_class+0x640/0x640
[  273.826476]  ? __lock_is_held+0xb5/0x140
[  273.830547]  ? mark_held_locks+0x130/0x130
[  273.834784]  ? lock_release+0xa00/0xa00
[  273.838773]  ? perf_trace_sched_process_exec+0x860/0x860
[  273.844222]  ? xa_load+0x2ba/0x460
[  273.847763]  ? lock_downgrade+0x900/0x900
[  273.851920]  ? __might_sleep+0x95/0x190
[  273.855905]  __alloc_pages_nodemask+0xad8/0xea0
[  273.860583]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  273.865633]  ? __page_cache_alloc+0x191/0x5c0
[  273.870145]  ? xa_load+0x2e1/0x460
[  273.873689]  ? xa_clear_mark+0x40/0x40
[  273.877579]  ? zap_class+0x640/0x640
[  273.881298]  ? zap_class+0x640/0x640
[  273.885013]  ? zap_class+0x640/0x640
[  273.888725]  ? __do_page_cache_readahead+0x663/0x810
[  273.893829]  ? find_held_lock+0x36/0x1c0
[  273.897926]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  273.903472]  alloc_pages_current+0x173/0x350
[  273.907890]  __page_cache_alloc+0x38c/0x5c0
[  273.912212]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  273.917163]  ? kasan_check_read+0x11/0x20
[  273.921311]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.926591]  ? generic_perform_write+0x6a0/0x6a0
[  273.931349]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.936893]  ? check_preemption_disabled+0x48/0x280
[  273.941951]  filemap_fault+0x1595/0x25f0
[  273.946041]  ? __lock_page_or_retry+0xa00/0xa00
[  273.950713]  ? mark_held_locks+0x130/0x130
[  273.954957]  ? filemap_map_pages+0xd6b/0x1a20
[  273.959487]  ? lock_downgrade+0x900/0x900
[  273.963632]  ? check_preemption_disabled+0x48/0x280
[  273.968651]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  273.973578]  ? kasan_check_read+0x11/0x20
[  273.977727]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.983004]  ? rcu_softirq_qs+0x20/0x20
[  273.986991]  ? filemap_map_pages+0xd92/0x1a20
[  273.991497]  ? find_get_entries_tag+0x1400/0x1400
[  273.996343]  ? debug_object_destroy+0x2b0/0x2b0
[  274.001014]  ? lock_pi_update_atomic+0x150/0x150
[  274.005768]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.011384]  ? lock_acquire+0x1ed/0x520
[  274.015363]  ? ext4_filemap_fault+0x7a/0xad
[  274.019693]  ? lock_release+0xa00/0xa00
[  274.023677]  ? perf_trace_sched_process_exec+0x860/0x860
[  274.029127]  ? print_usage_bug+0xc0/0xc0
[  274.033211]  ? print_usage_bug+0xc0/0xc0
[  274.037314]  ? down_read+0x8d/0x120
[  274.040943]  ? ext4_filemap_fault+0x7a/0xad
[  274.045263]  ? __down_interruptible+0x700/0x700
[  274.049971]  ext4_filemap_fault+0x82/0xad
[  274.054122]  __do_fault+0x100/0x6b0
[  274.057762]  ? find_held_lock+0x36/0x1c0
[  274.061824]  ? pmd_devmap_trans_unstable+0x220/0x220
[  274.066974]  ? mark_held_locks+0x130/0x130
[  274.071211]  ? mark_held_locks+0x130/0x130
[  274.075443]  ? _raw_spin_unlock_irq+0x27/0x80
[  274.079941]  ? _raw_spin_unlock_irq+0x27/0x80
[  274.084439]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  274.089029]  ? kasan_check_read+0x11/0x20
[  274.093179]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.098748]  __handle_mm_fault+0x3ea0/0x5be0
[  274.103179]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  274.108031]  ? finish_task_switch+0x1f4/0x910
[  274.112542]  ? finish_task_switch+0x1b4/0x910
[  274.117054]  ? __switch_to_asm+0x34/0x70
[  274.121117]  ? preempt_notifier_register+0x200/0x200
[  274.126215]  ? __switch_to_asm+0x34/0x70
[  274.130277]  ? __switch_to_asm+0x34/0x70
[  274.134357]  ? zap_class+0x640/0x640
[  274.138072]  ? zap_class+0x640/0x640
[  274.141788]  ? __x64_sys_futex+0x53e/0x6a0
[  274.146042]  ? find_held_lock+0x36/0x1c0
[  274.150114]  ? handle_mm_fault+0x42a/0xc70
[  274.154350]  ? lock_downgrade+0x900/0x900
[  274.158501]  ? check_preemption_disabled+0x48/0x280
[  274.163521]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  274.168452]  ? kasan_check_read+0x11/0x20
[  274.172597]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.177901]  ? rcu_softirq_qs+0x20/0x20
[  274.181875]  ? trace_hardirqs_off_caller+0x310/0x310
[  274.187015]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.192572]  ? check_preemption_disabled+0x48/0x280
[  274.197644]  handle_mm_fault+0x54f/0xc70
[  274.201711]  ? __handle_mm_fault+0x5be0/0x5be0
[  274.206302]  ? find_vma+0x34/0x190
[  274.209849]  __do_page_fault+0x5e8/0xe60
[  274.213922]  ? trace_hardirqs_off+0xb8/0x310
[  274.218356]  do_page_fault+0xf2/0x7e0
[  274.222195]  ? vmalloc_sync_all+0x30/0x30
[  274.226356]  ? error_entry+0x70/0xd0
[  274.230072]  ? trace_hardirqs_off_caller+0xbb/0x310
[  274.235088]  ? trace_hardirqs_on_caller+0xc0/0x310
[  274.240021]  ? syscall_return_slowpath+0x5e0/0x5e0
[  274.244982]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.249837]  ? trace_hardirqs_on_caller+0x310/0x310
[  274.254874]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  274.260391]  ? prepare_exit_to_usermode+0x291/0x3b0
[  274.265415]  ? page_fault+0x8/0x30
[  274.268975]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.273822]  ? page_fault+0x8/0x30
[  274.277361]  page_fault+0x1e/0x30
[  274.280813] RIP: 0033:0x40f9c0
[  274.284019] Code: Bad RIP value.
[  274.287402] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  274.292766] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  274.302399] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  274.309664] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  274.316934] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  274.324204] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  274.331494] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  274.331559] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  274.338247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  274.338252] Call Trace:
[  274.338270]  dump_stack+0x244/0x39d
[  274.338294]  ? dump_stack_print_info.cold.1+0x20/0x20
[  274.344862] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  274.354137]  warn_alloc.cold.116+0xb7/0x1bd
[  274.356691] syz-fuzzer cpuset=/ mems_allowed=0
[  274.360310]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  274.389429]  ? lock_downgrade+0x900/0x900
[  274.393612]  ? trace_hardirqs_off+0xb8/0x310
[  274.398045]  ? trace_hardirqs_off+0xb8/0x310
[  274.402461]  __alloc_pages_slowpath+0x2651/0x2de0
[  274.407350]  ? warn_alloc+0x120/0x120
[  274.411156]  ? print_usage_bug+0xc0/0xc0
[  274.415219]  ? warn_alloc+0x120/0x120
[  274.419022]  ? warn_alloc+0x120/0x120
[  274.422823]  ? print_usage_bug+0xc0/0xc0
[  274.426898]  ? print_usage_bug+0xc0/0xc0
[  274.431484]  ? __lock_acquire+0x62f/0x4c20
[  274.435725]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.441265]  ? should_fail+0x22d/0xd01
[  274.445155]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  274.450273]  ? __lock_acquire+0x62f/0x4c20
[  274.454511]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  274.459609]  ? __lock_acquire+0x62f/0x4c20
[  274.463869]  ? should_fail+0x22d/0xd01
[  274.467800]  ? find_held_lock+0x36/0x1c0
[  274.471871]  ? mark_held_locks+0x130/0x130
[  274.476134]  ? mark_held_locks+0x130/0x130
[  274.480378]  ? zap_class+0x640/0x640
[  274.484124]  ? zap_class+0x640/0x640
[  274.487860]  ? print_usage_bug+0xc0/0xc0
[  274.492042]  ? do_raw_spin_unlock+0xa7/0x330
[  274.496447]  ? zap_class+0x640/0x640
[  274.500170]  ? print_usage_bug+0xc0/0xc0
[  274.504226]  ? wq_watchdog_touch+0x9c/0xfe
[  274.508492]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.514059]  ? check_preemption_disabled+0x48/0x280
[  274.519083]  ? __lock_is_held+0xb5/0x140
[  274.523147]  __alloc_pages_nodemask+0xad8/0xea0
[  274.527812]  ? zap_class+0x640/0x640
[  274.531550]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  274.536584]  ? find_held_lock+0x36/0x1c0
[  274.540653]  ? ____cache_alloc_node+0x1c7/0x1e0
[  274.545353]  ? lock_downgrade+0x900/0x900
[  274.549507]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.555050]  cache_grow_begin+0xa5/0x8c0
[  274.559109]  ? do_raw_spin_unlock+0xa7/0x330
[  274.563749]  fallback_alloc+0x204/0x2e0
[  274.567758]  ____cache_alloc_node+0x1c7/0x1e0
[  274.572274]  kmem_cache_alloc_node+0xe3/0x730
[  274.576772]  ? ipv6_get_ifaddr+0x42e/0x620
[  274.581016]  __alloc_skb+0x119/0x770
[  274.584741]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.590036]  ? netdev_alloc_frag+0x1f0/0x1f0
[  274.594447]  ? lock_downgrade+0x900/0x900
[  274.598601]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.604137]  ? refcount_sub_and_test_checked+0x203/0x310
[  274.609593]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  274.615042]  ? addrconf_rs_timer+0x690/0x690
[  274.619459]  ndisc_alloc_skb+0x144/0x340
[  274.623553]  ndisc_send_rs+0x331/0x6e0
[  274.627461]  addrconf_rs_timer+0x314/0x690
[  274.631701]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.635947]  call_timer_fn+0x272/0x920
[  274.639833]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.644070]  ? process_timeout+0x40/0x40
[  274.648141]  ? __run_timers+0x7da/0xc70
[  274.652115]  ? _raw_spin_unlock_irq+0x27/0x80
[  274.656641]  ? _raw_spin_unlock_irq+0x27/0x80
[  274.661134]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.665394]  ? lockdep_hardirqs_on+0x296/0x5b0
[  274.669980]  ? trace_hardirqs_on+0xbd/0x310
[  274.674319]  ? kasan_check_read+0x11/0x20
[  274.678475]  ? __run_timers+0x7da/0xc70
[  274.682464]  ? trace_hardirqs_off_caller+0x310/0x310
[  274.687569]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.691810]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.696043]  __run_timers+0x7e5/0xc70
[  274.699851]  ? timer_fixup_init+0x70/0x70
[  274.704005]  ? _raw_spin_unlock_irq+0x27/0x80
[  274.708498]  ? _raw_spin_unlock_irq+0x27/0x80
[  274.713003]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  274.717608]  ? trace_hardirqs_on+0xbd/0x310
[  274.721946]  ? kasan_check_read+0x11/0x20
[  274.726097]  ? finish_task_switch+0x1f4/0x910
[  274.730593]  ? trace_hardirqs_off_caller+0x310/0x310
[  274.735705]  ? compat_start_thread+0x80/0x80
[  274.740137]  ? pvclock_read_flags+0x160/0x160
[  274.744630]  ? __switch_to_asm+0x34/0x70
[  274.748693]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.754235]  ? check_preemption_disabled+0x48/0x280
[  274.759260]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  274.764798]  ? rcu_pm_notify+0xc0/0xc0
[  274.768686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.774228]  ? check_preemption_disabled+0x48/0x280
[  274.779251]  run_timer_softirq+0x52/0xb0
[  274.783314]  ? rcu_read_lock_sched_held+0x14f/0x180
[  274.788336]  __do_softirq+0x308/0xb7e
[  274.792157]  ? trace_hardirqs_on_caller+0xc0/0x310
[  274.797091]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  274.802195]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  274.807644]  ? trace_hardirqs_on+0x310/0x310
[  274.812057]  ? schedule+0x108/0x460
[  274.815696]  ? trace_hardirqs_off+0xb8/0x310
[  274.820105]  ? smpboot_thread_fn+0x68b/0xa00
[  274.824513]  ? trace_hardirqs_on+0x310/0x310
[  274.828927]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.834469]  ? check_preemption_disabled+0x48/0x280
[  274.839488]  ? takeover_tasklets+0xa90/0xa90
[  274.843910]  run_ksoftirqd+0x5e/0x100
[  274.847713]  smpboot_thread_fn+0x68b/0xa00
[  274.851950]  ? sort_range+0x30/0x30
[  274.855578]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  274.860681]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.866218]  ? __kthread_parkme+0xfb/0x1a0
[  274.870455]  ? sort_range+0x30/0x30
[  274.874084]  kthread+0x35a/0x440
[  274.877465]  ? kthread_stop+0x900/0x900
[  274.881443]  ret_from_fork+0x3a/0x50
[  274.885168] warn_alloc_show_mem: 1 callbacks suppressed
[  274.885180] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  274.885182] Mem-Info:
[  274.885213] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  274.885213]  active_file:12 inactive_file:14 isolated_file:0
[  274.885213]  unevictable:0 dirty:0 writeback:0 unstable:0
[  274.885213]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  274.885213]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  274.885213]  free:13757 free_pcp:113 free_cma:0
[  274.890551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  274.897478] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  274.899888] Call Trace:
[  274.932929] 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
[  274.942275]  <IRQ>
[  274.970095] lowmem_reserve[]: 0 2818 6321 6321
[  274.972687]  dump_stack+0x244/0x39d
[  274.998768] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  275.000914]  ? dump_stack_print_info.cold.1+0x20/0x20
[  275.005464] lowmem_reserve[]: 0 0 3503 3503
[  275.009131]  warn_alloc.cold.116+0xb7/0x1bd
[  275.036600] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  275.041783]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  275.046085] lowmem_reserve[]: 0 0 0 0
[  275.050407]  ? lock_downgrade+0x900/0x900
[  275.079440] 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
[  275.084291]  ? trace_hardirqs_off+0xb8/0x310
[  275.088077] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  275.092227]  ? trace_hardirqs_off+0xb8/0x310
[  275.105739] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  275.110148]  __alloc_pages_slowpath+0x2651/0x2de0
[  275.125654] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  275.130074]  ? warn_alloc+0x120/0x120
[  275.144601] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  275.149445]  ? print_usage_bug+0xc0/0xc0
[  275.158257] 4236 total pagecache pages
[  275.162067]  ? warn_alloc+0x120/0x120
[  275.170641] 0 pages in swap cache
[  275.174688]  ? warn_alloc+0x120/0x120
[  275.178554] Swap cache stats: add 0, delete 0, find 0/0
[  275.182373]  ? print_usage_bug+0xc0/0xc0
[  275.185802] Free swap  = 0kB
[  275.189597]  ? kvm_clock_read+0x18/0x30
[  275.194939] Total swap = 0kB
[  275.198994]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  275.201990] 1965979 pages RAM
[  275.205971]  ? print_usage_bug+0xc0/0xc0
[  275.208966] 0 pages HighMem/MovableOnly
[  275.213974]  ? __lock_acquire+0x62f/0x4c20
[  275.217058] 342854 pages reserved
[  275.221127]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.225080] 0 pages cma reserved
[  275.229346]  ? should_fail+0x22d/0xd01
[  275.232838] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  275.238297]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.238315]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  275.238332]  ? __lock_acquire+0x62f/0x4c20
[  275.241735] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  275.245564]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  275.252048] ksoftirqd/0 cpuset=/ mems_allowed=0
[  275.257317]  ? __lock_acquire+0x62f/0x4c20
[  275.290893]  ? should_fail+0x22d/0xd01
[  275.294780]  ? rcu_irq_exit+0x1a2/0x390
[  275.298765]  ? mark_held_locks+0x130/0x130
[  275.303008]  ? mark_held_locks+0x130/0x130
[  275.307251]  ? mark_held_locks+0xc7/0x130
[  275.311417]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  275.316436]  ? zap_class+0x640/0x640
[  275.320153]  ? print_usage_bug+0xc0/0xc0
[  275.324234]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.329774]  ? check_preemption_disabled+0x48/0x280
[  275.334798]  ? __lock_is_held+0xb5/0x140
[  275.338871]  __alloc_pages_nodemask+0xad8/0xea0
[  275.343586]  ? zap_class+0x640/0x640
[  275.347305]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  275.352330]  ? find_held_lock+0x36/0x1c0
[  275.356422]  ? ____cache_alloc_node+0x1c7/0x1e0
[  275.361095]  ? lock_downgrade+0x900/0x900
[  275.365266]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.370808]  cache_grow_begin+0xa5/0x8c0
[  275.374867]  ? do_raw_spin_unlock+0xa7/0x330
[  275.379288]  fallback_alloc+0x204/0x2e0
[  275.383266]  ____cache_alloc_node+0x1c7/0x1e0
[  275.387764]  kmem_cache_alloc_node+0xe3/0x730
[  275.392274]  ? ipv6_get_ifaddr+0x42e/0x620
[  275.396568]  __alloc_skb+0x119/0x770
[  275.400280]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.405557]  ? netdev_alloc_frag+0x1f0/0x1f0
[  275.409963]  ? lock_downgrade+0x900/0x900
[  275.414131]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.419673]  ? refcount_sub_and_test_checked+0x203/0x310
[  275.425126]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  275.430573]  ? addrconf_rs_timer+0x690/0x690
[  275.434992]  ndisc_alloc_skb+0x144/0x340
[  275.439060]  ndisc_send_rs+0x331/0x6e0
[  275.442955]  addrconf_rs_timer+0x314/0x690
[  275.447199]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.451451]  call_timer_fn+0x272/0x920
[  275.455347]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.459613]  ? process_timeout+0x40/0x40
[  275.463696]  ? mark_held_locks+0xc7/0x130
[  275.467848]  ? _raw_spin_unlock_irq+0x27/0x80
[  275.472377]  ? _raw_spin_unlock_irq+0x27/0x80
[  275.476891]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.481128]  ? lockdep_hardirqs_on+0x296/0x5b0
[  275.485724]  ? trace_hardirqs_on+0xbd/0x310
[  275.490045]  ? kasan_check_read+0x11/0x20
[  275.494190]  ? __run_timers+0x7da/0xc70
[  275.498166]  ? trace_hardirqs_off_caller+0x310/0x310
[  275.503307]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.507575]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.511807]  __run_timers+0x7e5/0xc70
[  275.515616]  ? timer_fixup_init+0x70/0x70
[  275.519765]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  275.524782]  ? zap_class+0x640/0x640
[  275.528503]  ? print_usage_bug+0xc0/0xc0
[  275.532568]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  275.537763]  ? find_held_lock+0x36/0x1c0
[  275.541834]  ? zap_class+0x640/0x640
[  275.545558]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.551097]  ? check_preemption_disabled+0x48/0x280
[  275.556126]  ? __lock_is_held+0xb5/0x140
[  275.560188]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.565746]  ? check_preemption_disabled+0x48/0x280
[  275.570801]  run_timer_softirq+0x52/0xb0
[  275.574858]  ? rcu_read_lock_sched_held+0x14f/0x180
[  275.579889]  __do_softirq+0x308/0xb7e
[  275.583694]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  275.588202]  ? lock_downgrade+0x900/0x900
[  275.592356]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  275.597469]  ? pvclock_read_flags+0x160/0x160
[  275.601986]  ? lapic_next_event+0x5a/0x90
[  275.606139]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.611686]  ? kvm_clock_read+0x18/0x30
[  275.615662]  ? kvm_sched_clock_read+0x9/0x20
[  275.620075]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.625614]  ? check_preemption_disabled+0x48/0x280
[  275.630670]  irq_exit+0x17f/0x1c0
[  275.634127]  smp_apic_timer_interrupt+0x1cb/0x760
[  275.638974]  ? smp_call_function_single_interrupt+0x159/0x650
[  275.644889]  ? smp_call_function_single_interrupt+0x650/0x650
[  275.650790]  ? interrupt_entry+0xb5/0xc0
[  275.654870]  ? trace_hardirqs_off_caller+0xbb/0x310
[  275.659903]  ? trace_hardirqs_off_caller+0xbb/0x310
[  275.664940]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.669782]  ? trace_hardirqs_on_caller+0x310/0x310
[  275.674810]  ? trace_hardirqs_on_caller+0x310/0x310
[  275.679829]  ? task_prio+0x50/0x50
[  275.683377]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.689044]  ? check_preemption_disabled+0x48/0x280
[  275.694066]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.698923]  apic_timer_interrupt+0xf/0x20
[  275.703168]  </IRQ>
[  275.705411] RIP: 0010:dump_stack+0x358/0x39d
[  275.709820] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  275.728722] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  275.736435] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  275.743701] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  275.750970] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  275.758237] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  275.765521] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  275.772822]  ? dump_stack+0x34f/0x39d
[  275.776652]  ? dump_stack_print_info.cold.1+0x20/0x20
[  275.781847]  ? mark_held_locks+0x130/0x130
[  275.786111]  ? mark_held_locks+0x130/0x130
[  275.790354]  dump_header+0x27b/0xf72
[  275.794078]  ? pagefault_out_of_memory+0x197/0x197
[  275.799027]  ? __lock_acquire+0x62f/0x4c20
[  275.803264]  ? percpu_ref_get_many+0x240/0x240
[  275.807847]  ? print_usage_bug+0xc0/0xc0
[  275.811919]  ? zap_class+0x640/0x640
[  275.815633]  ? print_usage_bug+0xc0/0xc0
[  275.819714]  ? print_usage_bug+0xc0/0xc0
[  275.823779]  ? zap_class+0x640/0x640
[  275.827500]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.833045]  ? find_held_lock+0x36/0x1c0
[  275.837123]  ? mark_held_locks+0xc7/0x130
[  275.841274]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  275.846379]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  275.851488]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  275.856068]  ? trace_hardirqs_on+0xbd/0x310
[  275.860386]  ? kasan_check_read+0x11/0x20
[  275.864544]  ? ___ratelimit+0x3b4/0x672
[  275.868518]  ? trace_hardirqs_off_caller+0x310/0x310
[  275.873625]  ? trace_hardirqs_on+0x310/0x310
[  275.878049]  ? lock_downgrade+0x900/0x900
[  275.882215]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  275.887327]  ? ___ratelimit+0x3b9/0x672
[  275.891304]  ? idr_get_free+0xf70/0xf70
[  275.895279]  ? find_held_lock+0x36/0x1c0
[  275.899379]  oom_kill_process.cold.27+0x10/0x903
[  275.904154]  ? zap_class+0x640/0x640
[  275.907867]  ? check_preemption_disabled+0x48/0x280
[  275.912902]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  275.917835]  ? kasan_check_read+0x11/0x20
[  275.921997]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.927293]  ? oom_evaluate_task+0x540/0x540
[  275.931706]  ? find_held_lock+0x36/0x1c0
[  275.935804]  ? out_of_memory+0x974/0x1430
[  275.939959]  ? lock_downgrade+0x900/0x900
[  275.944119]  ? check_preemption_disabled+0x48/0x280
[  275.949136]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  275.954067]  ? kasan_check_read+0x11/0x20
[  275.958213]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.963489]  ? rcu_softirq_qs+0x20/0x20
[  275.967496]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.973049]  ? oom_evaluate_task+0x302/0x540
[  275.977476]  out_of_memory+0xa84/0x1430
[  275.981476]  ? oom_killer_disable+0x3a0/0x3a0
[  275.985972]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  275.990936]  ? __ww_mutex_check_waiters+0x160/0x160
[  275.995981]  __alloc_pages_slowpath+0x232c/0x2de0
[  276.000857]  ? warn_alloc+0x120/0x120
[  276.004687]  ? mark_held_locks+0x130/0x130
[  276.008972]  ? find_get_entry+0xaae/0x1120
[  276.013216]  ? filemap_map_pages+0x1a20/0x1a20
[  276.017803]  ? zap_class+0x640/0x640
[  276.021523]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.027147]  ? check_preemption_disabled+0x48/0x280
[  276.032169]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.037705]  ? should_fail+0x22d/0xd01
[  276.041596]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  276.046714]  ? zap_class+0x640/0x640
[  276.050515]  ? __lock_is_held+0xb5/0x140
[  276.054615]  ? mark_held_locks+0x130/0x130
[  276.058854]  ? lock_release+0xa00/0xa00
[  276.062835]  ? perf_trace_sched_process_exec+0x860/0x860
[  276.068289]  ? xa_load+0x2ba/0x460
[  276.071831]  ? lock_downgrade+0x900/0x900
[  276.075987]  ? __might_sleep+0x95/0x190
[  276.079967]  __alloc_pages_nodemask+0xad8/0xea0
[  276.084649]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  276.089700]  ? __page_cache_alloc+0x191/0x5c0
[  276.094216]  ? xa_load+0x2e1/0x460
[  276.097757]  ? xa_clear_mark+0x40/0x40
[  276.101655]  ? zap_class+0x640/0x640
[  276.105391]  ? zap_class+0x640/0x640
[  276.109110]  ? zap_class+0x640/0x640
[  276.112843]  ? __do_page_cache_readahead+0x663/0x810
[  276.117952]  ? find_held_lock+0x36/0x1c0
[  276.122017]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  276.127561]  alloc_pages_current+0x173/0x350
[  276.131976]  __page_cache_alloc+0x38c/0x5c0
[  276.136309]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  276.141242]  ? kasan_check_read+0x11/0x20
[  276.145399]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.150716]  ? generic_perform_write+0x6a0/0x6a0
[  276.155497]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.161039]  ? check_preemption_disabled+0x48/0x280
[  276.166064]  filemap_fault+0x1595/0x25f0
[  276.170154]  ? __lock_page_or_retry+0xa00/0xa00
[  276.174853]  ? mark_held_locks+0x130/0x130
[  276.179108]  ? filemap_map_pages+0xd6b/0x1a20
[  276.183607]  ? lock_downgrade+0x900/0x900
[  276.187755]  ? check_preemption_disabled+0x48/0x280
[  276.192777]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  276.197709]  ? kasan_check_read+0x11/0x20
[  276.201858]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.207140]  ? rcu_softirq_qs+0x20/0x20
[  276.211141]  ? filemap_map_pages+0xd92/0x1a20
[  276.215651]  ? find_get_entries_tag+0x1400/0x1400
[  276.220501]  ? debug_object_destroy+0x2b0/0x2b0
[  276.225178]  ? lock_pi_update_atomic+0x150/0x150
[  276.229933]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.235501]  ? lock_acquire+0x1ed/0x520
[  276.239507]  ? ext4_filemap_fault+0x7a/0xad
[  276.243864]  ? lock_release+0xa00/0xa00
[  276.247840]  ? perf_trace_sched_process_exec+0x860/0x860
[  276.253290]  ? print_usage_bug+0xc0/0xc0
[  276.257368]  ? print_usage_bug+0xc0/0xc0
[  276.261533]  ? down_read+0x8d/0x120
[  276.265193]  ? ext4_filemap_fault+0x7a/0xad
[  276.269534]  ? __down_interruptible+0x700/0x700
[  276.274252]  ext4_filemap_fault+0x82/0xad
[  276.278425]  __do_fault+0x100/0x6b0
[  276.282050]  ? find_held_lock+0x36/0x1c0
[  276.286130]  ? pmd_devmap_trans_unstable+0x220/0x220
[  276.291234]  ? mark_held_locks+0x130/0x130
[  276.295486]  ? mark_held_locks+0x130/0x130
[  276.299725]  ? _raw_spin_unlock_irq+0x27/0x80
[  276.304217]  ? _raw_spin_unlock_irq+0x27/0x80
[  276.308713]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  276.313312]  ? kasan_check_read+0x11/0x20
[  276.317462]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.323007]  __handle_mm_fault+0x3ea0/0x5be0
[  276.327427]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  276.332286]  ? finish_task_switch+0x1f4/0x910
[  276.336778]  ? finish_task_switch+0x1b4/0x910
[  276.341289]  ? __switch_to_asm+0x34/0x70
[  276.345367]  ? preempt_notifier_register+0x200/0x200
[  276.350483]  ? __switch_to_asm+0x34/0x70
[  276.354572]  ? __switch_to_asm+0x34/0x70
[  276.358692]  ? zap_class+0x640/0x640
[  276.362433]  ? zap_class+0x640/0x640
[  276.366148]  ? __x64_sys_futex+0x53e/0x6a0
[  276.370409]  ? find_held_lock+0x36/0x1c0
[  276.374477]  ? handle_mm_fault+0x42a/0xc70
[  276.378717]  ? lock_downgrade+0x900/0x900
[  276.382870]  ? check_preemption_disabled+0x48/0x280
[  276.387933]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  276.392914]  ? kasan_check_read+0x11/0x20
[  276.397098]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.402374]  ? rcu_softirq_qs+0x20/0x20
[  276.406354]  ? trace_hardirqs_off_caller+0x310/0x310
[  276.411464]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.417003]  ? check_preemption_disabled+0x48/0x280
[  276.422065]  handle_mm_fault+0x54f/0xc70
[  276.426132]  ? __handle_mm_fault+0x5be0/0x5be0
[  276.430934]  ? find_vma+0x34/0x190
[  276.434484]  __do_page_fault+0x5e8/0xe60
[  276.438543]  ? trace_hardirqs_off+0xb8/0x310
[  276.442978]  do_page_fault+0xf2/0x7e0
[  276.446780]  ? vmalloc_sync_all+0x30/0x30
[  276.450929]  ? error_entry+0x70/0xd0
[  276.454663]  ? trace_hardirqs_off_caller+0xbb/0x310
[  276.459690]  ? trace_hardirqs_on_caller+0xc0/0x310
[  276.464616]  ? syscall_return_slowpath+0x5e0/0x5e0
[  276.469544]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.474407]  ? trace_hardirqs_on_caller+0x310/0x310
[  276.479428]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  276.484956]  ? prepare_exit_to_usermode+0x291/0x3b0
[  276.489993]  ? page_fault+0x8/0x30
[  276.493545]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.498412]  ? page_fault+0x8/0x30
[  276.501957]  page_fault+0x1e/0x30
[  276.505421] RIP: 0033:0x40f9c0
[  276.508625] Code: Bad RIP value.
[  276.512037] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  276.517445] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  276.524758] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  276.532022] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  276.539287] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  276.546568] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  276.553862] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  276.553964] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  276.560657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  276.560662] Call Trace:
[  276.560680]  dump_stack+0x244/0x39d
[  276.560698]  ? dump_stack_print_info.cold.1+0x20/0x20
[  276.567755] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  276.577031]  warn_alloc.cold.116+0xb7/0x1bd
[  276.579586] syz-fuzzer cpuset=/ mems_allowed=0
[  276.583208]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  276.612292]  ? lock_downgrade+0x900/0x900
[  276.616448]  ? trace_hardirqs_off+0xb8/0x310
[  276.620861]  ? trace_hardirqs_off+0xb8/0x310
[  276.625288]  __alloc_pages_slowpath+0x2651/0x2de0
[  276.630195]  ? warn_alloc+0x120/0x120
[  276.634027]  ? print_usage_bug+0xc0/0xc0
[  276.638093]  ? warn_alloc+0x120/0x120
[  276.641929]  ? warn_alloc+0x120/0x120
[  276.645732]  ? print_usage_bug+0xc0/0xc0
[  276.649804]  ? print_usage_bug+0xc0/0xc0
[  276.653866]  ? __lock_acquire+0x62f/0x4c20
[  276.658118]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.663678]  ? should_fail+0x22d/0xd01
[  276.667566]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  276.672684]  ? __lock_acquire+0x62f/0x4c20
[  276.676929]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  276.682029]  ? __lock_acquire+0x62f/0x4c20
[  276.686279]  ? should_fail+0x22d/0xd01
[  276.690167]  ? find_held_lock+0x36/0x1c0
[  276.694239]  ? mark_held_locks+0x130/0x130
[  276.698475]  ? mark_held_locks+0x130/0x130
[  276.702707]  ? zap_class+0x640/0x640
[  276.706424]  ? zap_class+0x640/0x640
[  276.710155]  ? print_usage_bug+0xc0/0xc0
[  276.714216]  ? do_raw_spin_unlock+0xa7/0x330
[  276.718622]  ? zap_class+0x640/0x640
[  276.722360]  ? print_usage_bug+0xc0/0xc0
[  276.726419]  ? wq_watchdog_touch+0x9c/0xfe
[  276.730677]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.736219]  ? check_preemption_disabled+0x48/0x280
[  276.741245]  ? __lock_is_held+0xb5/0x140
[  276.745330]  __alloc_pages_nodemask+0xad8/0xea0
[  276.750017]  ? zap_class+0x640/0x640
[  276.753739]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  276.758771]  ? find_held_lock+0x36/0x1c0
[  276.762840]  ? ____cache_alloc_node+0x1c7/0x1e0
[  276.767514]  ? lock_downgrade+0x900/0x900
[  276.771682]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.777235]  cache_grow_begin+0xa5/0x8c0
[  276.781295]  ? do_raw_spin_unlock+0xa7/0x330
[  276.785713]  fallback_alloc+0x204/0x2e0
[  276.789697]  ____cache_alloc_node+0x1c7/0x1e0
[  276.794201]  kmem_cache_alloc_node+0xe3/0x730
[  276.798708]  ? ipv6_get_ifaddr+0x42e/0x620
[  276.802951]  __alloc_skb+0x119/0x770
[  276.806675]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.811987]  ? netdev_alloc_frag+0x1f0/0x1f0
[  276.816408]  ? lock_downgrade+0x900/0x900
[  276.820577]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.826116]  ? refcount_sub_and_test_checked+0x203/0x310
[  276.831570]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  276.837021]  ? addrconf_rs_timer+0x690/0x690
[  276.841437]  ndisc_alloc_skb+0x144/0x340
[  276.845499]  ndisc_send_rs+0x331/0x6e0
[  276.849394]  addrconf_rs_timer+0x314/0x690
[  276.853638]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.857879]  call_timer_fn+0x272/0x920
[  276.861776]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.866010]  ? process_timeout+0x40/0x40
[  276.870079]  ? __run_timers+0x7da/0xc70
[  276.874051]  ? _raw_spin_unlock_irq+0x27/0x80
[  276.878541]  ? _raw_spin_unlock_irq+0x27/0x80
[  276.883035]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.887275]  ? lockdep_hardirqs_on+0x296/0x5b0
[  276.891857]  ? trace_hardirqs_on+0xbd/0x310
[  276.896185]  ? kasan_check_read+0x11/0x20
[  276.900329]  ? __run_timers+0x7da/0xc70
[  276.904303]  ? trace_hardirqs_off_caller+0x310/0x310
[  276.909407]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.913644]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.917871]  __run_timers+0x7e5/0xc70
[  276.921691]  ? timer_fixup_init+0x70/0x70
[  276.925860]  ? _raw_spin_unlock_irq+0x27/0x80
[  276.930384]  ? _raw_spin_unlock_irq+0x27/0x80
[  276.934914]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  276.939519]  ? trace_hardirqs_on+0xbd/0x310
[  276.943842]  ? kasan_check_read+0x11/0x20
[  276.947996]  ? finish_task_switch+0x1f4/0x910
[  276.952491]  ? trace_hardirqs_off_caller+0x310/0x310
[  276.957592]  ? compat_start_thread+0x80/0x80
[  276.962022]  ? pvclock_read_flags+0x160/0x160
[  276.966518]  ? __switch_to_asm+0x34/0x70
[  276.970591]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.976166]  ? check_preemption_disabled+0x48/0x280
[  276.981194]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  276.986735]  ? rcu_pm_notify+0xc0/0xc0
[  276.990681]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.996220]  ? check_preemption_disabled+0x48/0x280
[  277.001240]  run_timer_softirq+0x52/0xb0
[  277.005300]  ? rcu_read_lock_sched_held+0x14f/0x180
[  277.010317]  __do_softirq+0x308/0xb7e
[  277.014133]  ? trace_hardirqs_on_caller+0xc0/0x310
[  277.019069]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  277.024173]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  277.029657]  ? trace_hardirqs_on+0x310/0x310
[  277.034071]  ? schedule+0x108/0x460
[  277.037724]  ? trace_hardirqs_off+0xb8/0x310
[  277.042131]  ? smpboot_thread_fn+0x68b/0xa00
[  277.046536]  ? trace_hardirqs_on+0x310/0x310
[  277.050950]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.056487]  ? check_preemption_disabled+0x48/0x280
[  277.061502]  ? takeover_tasklets+0xa90/0xa90
[  277.065920]  run_ksoftirqd+0x5e/0x100
[  277.069721]  smpboot_thread_fn+0x68b/0xa00
[  277.073958]  ? sort_range+0x30/0x30
[  277.077592]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  277.082701]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.088247]  ? __kthread_parkme+0xfb/0x1a0
[  277.092484]  ? sort_range+0x30/0x30
[  277.096126]  kthread+0x35a/0x440
[  277.099489]  ? kthread_stop+0x900/0x900
[  277.103462]  ret_from_fork+0x3a/0x50
[  277.107219] warn_alloc_show_mem: 1 callbacks suppressed
[  277.107230] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  277.107232] Mem-Info:
[  277.107262] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  277.107262]  active_file:12 inactive_file:14 isolated_file:0
[  277.107262]  unevictable:0 dirty:0 writeback:0 unstable:0
[  277.107262]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  277.107262]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  277.107262]  free:13757 free_pcp:113 free_cma:0
[  277.112596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  277.119539] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  277.121941] Call Trace:
[  277.154987] 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
[  277.164331]  <IRQ>
[  277.192151] lowmem_reserve[]: 0 2818 6321 6321
[  277.194742]  dump_stack+0x244/0x39d
[  277.220823] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  277.222968]  ? dump_stack_print_info.cold.1+0x20/0x20
[  277.227521] lowmem_reserve[]: 0 0 3503 3503
[  277.231150]  warn_alloc.cold.116+0xb7/0x1bd
[  277.258642] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  277.263825]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  277.268131] lowmem_reserve[]: 0 0 0 0
[  277.272448]  ? lock_downgrade+0x900/0x900
[  277.301480] 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
[  277.306320]  ? trace_hardirqs_off+0xb8/0x310
[  277.310093] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  277.314237]  ? trace_hardirqs_off+0xb8/0x310
[  277.327731] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  277.332141]  __alloc_pages_slowpath+0x2651/0x2de0
[  277.347636] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  277.352050]  ? warn_alloc+0x120/0x120
[  277.366574] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  277.371408]  ? print_usage_bug+0xc0/0xc0
[  277.380230] 4236 total pagecache pages
[  277.384037]  ? warn_alloc+0x120/0x120
[  277.392592] 0 pages in swap cache
[  277.396636]  ? warn_alloc+0x120/0x120
[  277.400501] Swap cache stats: add 0, delete 0, find 0/0
[  277.404293]  ? print_usage_bug+0xc0/0xc0
[  277.407737] Free swap  = 0kB
[  277.411542]  ? kvm_clock_read+0x18/0x30
[  277.416877] Total swap = 0kB
[  277.420957]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  277.423955] 1965979 pages RAM
[  277.427947]  ? print_usage_bug+0xc0/0xc0
[  277.430956] 0 pages HighMem/MovableOnly
[  277.435981]  ? __lock_acquire+0x62f/0x4c20
[  277.439070] 342854 pages reserved
[  277.443122]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.447067] 0 pages cma reserved
[  277.451291]  ? should_fail+0x22d/0xd01
[  277.454780] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  277.460238]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.460255]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  277.463674] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  277.467484]  ? __lock_acquire+0x62f/0x4c20
[  277.473954] ksoftirqd/0 cpuset=/ mems_allowed=0
[  277.479254]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  277.508605]  ? __lock_acquire+0x62f/0x4c20
[  277.512858]  ? should_fail+0x22d/0xd01
[  277.516746]  ? rcu_irq_exit+0x1a2/0x390
[  277.520739]  ? mark_held_locks+0x130/0x130
[  277.525022]  ? mark_held_locks+0x130/0x130
[  277.529279]  ? mark_held_locks+0xc7/0x130
[  277.533428]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  277.538446]  ? zap_class+0x640/0x640
[  277.542158]  ? print_usage_bug+0xc0/0xc0
[  277.546220]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.551756]  ? check_preemption_disabled+0x48/0x280
[  277.556794]  ? __lock_is_held+0xb5/0x140
[  277.560877]  __alloc_pages_nodemask+0xad8/0xea0
[  277.565556]  ? zap_class+0x640/0x640
[  277.569274]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  277.574318]  ? find_held_lock+0x36/0x1c0
[  277.578392]  ? ____cache_alloc_node+0x1c7/0x1e0
[  277.583070]  ? lock_downgrade+0x900/0x900
[  277.587224]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.592768]  cache_grow_begin+0xa5/0x8c0
[  277.596844]  ? do_raw_spin_unlock+0xa7/0x330
[  277.601294]  fallback_alloc+0x204/0x2e0
[  277.605284]  ____cache_alloc_node+0x1c7/0x1e0
[  277.609784]  kmem_cache_alloc_node+0xe3/0x730
[  277.614277]  ? ipv6_get_ifaddr+0x42e/0x620
[  277.618549]  __alloc_skb+0x119/0x770
[  277.622264]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.627543]  ? netdev_alloc_frag+0x1f0/0x1f0
[  277.631952]  ? lock_downgrade+0x900/0x900
[  277.636107]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.641640]  ? refcount_sub_and_test_checked+0x203/0x310
[  277.647093]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  277.652566]  ? addrconf_rs_timer+0x690/0x690
[  277.656982]  ndisc_alloc_skb+0x144/0x340
[  277.661049]  ndisc_send_rs+0x331/0x6e0
[  277.664953]  addrconf_rs_timer+0x314/0x690
[  277.669194]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.673439]  call_timer_fn+0x272/0x920
[  277.677354]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.681585]  ? process_timeout+0x40/0x40
[  277.685653]  ? mark_held_locks+0xc7/0x130
[  277.689819]  ? _raw_spin_unlock_irq+0x27/0x80
[  277.694311]  ? _raw_spin_unlock_irq+0x27/0x80
[  277.698815]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.703053]  ? lockdep_hardirqs_on+0x296/0x5b0
[  277.707651]  ? trace_hardirqs_on+0xbd/0x310
[  277.711972]  ? kasan_check_read+0x11/0x20
[  277.716123]  ? __run_timers+0x7da/0xc70
[  277.720099]  ? trace_hardirqs_off_caller+0x310/0x310
[  277.725206]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.729443]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.733702]  __run_timers+0x7e5/0xc70
[  277.737515]  ? timer_fixup_init+0x70/0x70
[  277.741664]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  277.746685]  ? zap_class+0x640/0x640
[  277.750407]  ? print_usage_bug+0xc0/0xc0
[  277.754471]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  277.759670]  ? find_held_lock+0x36/0x1c0
[  277.763756]  ? zap_class+0x640/0x640
[  277.767478]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.773029]  ? check_preemption_disabled+0x48/0x280
[  277.778058]  ? __lock_is_held+0xb5/0x140
[  277.782123]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.787661]  ? check_preemption_disabled+0x48/0x280
[  277.792687]  run_timer_softirq+0x52/0xb0
[  277.796762]  ? rcu_read_lock_sched_held+0x14f/0x180
[  277.801799]  __do_softirq+0x308/0xb7e
[  277.805605]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  277.810098]  ? lock_downgrade+0x900/0x900
[  277.814249]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  277.819359]  ? pvclock_read_flags+0x160/0x160
[  277.823858]  ? lapic_next_event+0x5a/0x90
[  277.828016]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.833561]  ? kvm_clock_read+0x18/0x30
[  277.837552]  ? kvm_sched_clock_read+0x9/0x20
[  277.841965]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.847520]  ? check_preemption_disabled+0x48/0x280
[  277.852557]  irq_exit+0x17f/0x1c0
[  277.856012]  smp_apic_timer_interrupt+0x1cb/0x760
[  277.860854]  ? smp_call_function_single_interrupt+0x159/0x650
[  277.866767]  ? smp_call_function_single_interrupt+0x650/0x650
[  277.872651]  ? interrupt_entry+0xb5/0xc0
[  277.876715]  ? trace_hardirqs_off_caller+0xbb/0x310
[  277.881727]  ? trace_hardirqs_off_caller+0xbb/0x310
[  277.886742]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  277.891585]  ? trace_hardirqs_on_caller+0x310/0x310
[  277.896604]  ? trace_hardirqs_on_caller+0x310/0x310
[  277.901624]  ? task_prio+0x50/0x50
[  277.905166]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.910704]  ? check_preemption_disabled+0x48/0x280
[  277.915734]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  277.920597]  apic_timer_interrupt+0xf/0x20
[  277.924841]  </IRQ>
[  277.927078] RIP: 0010:dump_stack+0x358/0x39d
[  277.931505] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  277.950407] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  277.958113] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  277.965382] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  277.972651] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  277.979931] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  277.987199] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  277.994484]  ? dump_stack+0x34f/0x39d
[  277.998311]  ? dump_stack_print_info.cold.1+0x20/0x20
[  278.003565]  ? mark_held_locks+0x130/0x130
[  278.007804]  ? mark_held_locks+0x130/0x130
[  278.012050]  dump_header+0x27b/0xf72
[  278.015795]  ? pagefault_out_of_memory+0x197/0x197
[  278.020734]  ? __lock_acquire+0x62f/0x4c20
[  278.024969]  ? percpu_ref_get_many+0x240/0x240
[  278.029552]  ? print_usage_bug+0xc0/0xc0
[  278.033616]  ? zap_class+0x640/0x640
[  278.037330]  ? print_usage_bug+0xc0/0xc0
[  278.041389]  ? print_usage_bug+0xc0/0xc0
[  278.045468]  ? zap_class+0x640/0x640
[  278.049199]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.054743]  ? find_held_lock+0x36/0x1c0
[  278.058812]  ? mark_held_locks+0xc7/0x130
[  278.062960]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  278.068066]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  278.073170]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  278.077768]  ? trace_hardirqs_on+0xbd/0x310
[  278.082104]  ? kasan_check_read+0x11/0x20
[  278.086252]  ? ___ratelimit+0x3b4/0x672
[  278.090231]  ? trace_hardirqs_off_caller+0x310/0x310
[  278.095341]  ? trace_hardirqs_on+0x310/0x310
[  278.099764]  ? lock_downgrade+0x900/0x900
[  278.103923]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  278.109031]  ? ___ratelimit+0x3b9/0x672
[  278.113011]  ? idr_get_free+0xf70/0xf70
[  278.116987]  ? find_held_lock+0x36/0x1c0
[  278.121060]  oom_kill_process.cold.27+0x10/0x903
[  278.125817]  ? zap_class+0x640/0x640
[  278.129530]  ? check_preemption_disabled+0x48/0x280
[  278.134549]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.139507]  ? kasan_check_read+0x11/0x20
[  278.143651]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.148957]  ? oom_evaluate_task+0x540/0x540
[  278.153371]  ? find_held_lock+0x36/0x1c0
[  278.157443]  ? out_of_memory+0x974/0x1430
[  278.161596]  ? lock_downgrade+0x900/0x900
[  278.165744]  ? check_preemption_disabled+0x48/0x280
[  278.170777]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.175724]  ? kasan_check_read+0x11/0x20
[  278.179872]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.185154]  ? rcu_softirq_qs+0x20/0x20
[  278.189169]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.194704]  ? oom_evaluate_task+0x302/0x540
[  278.199115]  out_of_memory+0xa84/0x1430
[  278.203113]  ? oom_killer_disable+0x3a0/0x3a0
[  278.207607]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  278.212546]  ? __ww_mutex_check_waiters+0x160/0x160
[  278.217572]  __alloc_pages_slowpath+0x232c/0x2de0
[  278.222461]  ? warn_alloc+0x120/0x120
[  278.226276]  ? mark_held_locks+0x130/0x130
[  278.230520]  ? find_get_entry+0xaae/0x1120
[  278.234767]  ? filemap_map_pages+0x1a20/0x1a20
[  278.239357]  ? zap_class+0x640/0x640
[  278.243107]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.248649]  ? check_preemption_disabled+0x48/0x280
[  278.253668]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.259207]  ? should_fail+0x22d/0xd01
[  278.263116]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  278.268236]  ? zap_class+0x640/0x640
[  278.271987]  ? __lock_is_held+0xb5/0x140
[  278.276054]  ? mark_held_locks+0x130/0x130
[  278.280290]  ? lock_release+0xa00/0xa00
[  278.284264]  ? perf_trace_sched_process_exec+0x860/0x860
[  278.289718]  ? xa_load+0x2ba/0x460
[  278.293258]  ? lock_downgrade+0x900/0x900
[  278.297412]  ? __might_sleep+0x95/0x190
[  278.301390]  __alloc_pages_nodemask+0xad8/0xea0
[  278.306069]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  278.311090]  ? __page_cache_alloc+0x191/0x5c0
[  278.315616]  ? xa_load+0x2e1/0x460
[  278.319163]  ? xa_clear_mark+0x40/0x40
[  278.323077]  ? zap_class+0x640/0x640
[  278.326798]  ? zap_class+0x640/0x640
[  278.330515]  ? zap_class+0x640/0x640
[  278.334231]  ? __do_page_cache_readahead+0x663/0x810
[  278.339339]  ? find_held_lock+0x36/0x1c0
[  278.343411]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  278.348967]  alloc_pages_current+0x173/0x350
[  278.353402]  __page_cache_alloc+0x38c/0x5c0
[  278.357734]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.362673]  ? kasan_check_read+0x11/0x20
[  278.366851]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.372135]  ? generic_perform_write+0x6a0/0x6a0
[  278.376914]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.382452]  ? check_preemption_disabled+0x48/0x280
[  278.387481]  filemap_fault+0x1595/0x25f0
[  278.391558]  ? __lock_page_or_retry+0xa00/0xa00
[  278.396230]  ? mark_held_locks+0x130/0x130
[  278.400472]  ? filemap_map_pages+0xd6b/0x1a20
[  278.404969]  ? lock_downgrade+0x900/0x900
[  278.409122]  ? check_preemption_disabled+0x48/0x280
[  278.414141]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.419071]  ? kasan_check_read+0x11/0x20
[  278.423218]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.428494]  ? rcu_softirq_qs+0x20/0x20
[  278.432732]  ? filemap_map_pages+0xd92/0x1a20
[  278.437255]  ? find_get_entries_tag+0x1400/0x1400
[  278.442106]  ? debug_object_destroy+0x2b0/0x2b0
[  278.446779]  ? lock_pi_update_atomic+0x150/0x150
[  278.451535]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.457087]  ? lock_acquire+0x1ed/0x520
[  278.461057]  ? ext4_filemap_fault+0x7a/0xad
[  278.465389]  ? lock_release+0xa00/0xa00
[  278.469378]  ? perf_trace_sched_process_exec+0x860/0x860
[  278.474837]  ? print_usage_bug+0xc0/0xc0
[  278.478923]  ? print_usage_bug+0xc0/0xc0
[  278.483011]  ? down_read+0x8d/0x120
[  278.486649]  ? ext4_filemap_fault+0x7a/0xad
[  278.490986]  ? __down_interruptible+0x700/0x700
[  278.495678]  ext4_filemap_fault+0x82/0xad
[  278.499830]  __do_fault+0x100/0x6b0
[  278.503472]  ? find_held_lock+0x36/0x1c0
[  278.507542]  ? pmd_devmap_trans_unstable+0x220/0x220
[  278.512646]  ? mark_held_locks+0x130/0x130
[  278.516880]  ? mark_held_locks+0x130/0x130
[  278.521124]  ? _raw_spin_unlock_irq+0x27/0x80
[  278.525619]  ? _raw_spin_unlock_irq+0x27/0x80
[  278.530132]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  278.534717]  ? kasan_check_read+0x11/0x20
[  278.538871]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.544440]  __handle_mm_fault+0x3ea0/0x5be0
[  278.548862]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  278.553712]  ? finish_task_switch+0x1f4/0x910
[  278.558225]  ? finish_task_switch+0x1b4/0x910
[  278.562718]  ? __switch_to_asm+0x34/0x70
[  278.567293]  ? preempt_notifier_register+0x200/0x200
[  278.572403]  ? __switch_to_asm+0x34/0x70
[  278.576462]  ? __switch_to_asm+0x34/0x70
[  278.580533]  ? zap_class+0x640/0x640
[  278.584267]  ? zap_class+0x640/0x640
[  278.587979]  ? __x64_sys_futex+0x53e/0x6a0
[  278.592220]  ? find_held_lock+0x36/0x1c0
[  278.596292]  ? handle_mm_fault+0x42a/0xc70
[  278.600524]  ? lock_downgrade+0x900/0x900
[  278.604672]  ? check_preemption_disabled+0x48/0x280
[  278.609716]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.614666]  ? kasan_check_read+0x11/0x20
[  278.618819]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.624098]  ? rcu_softirq_qs+0x20/0x20
[  278.628073]  ? trace_hardirqs_off_caller+0x310/0x310
[  278.633174]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.638714]  ? check_preemption_disabled+0x48/0x280
[  278.643756]  handle_mm_fault+0x54f/0xc70
[  278.647818]  ? __handle_mm_fault+0x5be0/0x5be0
[  278.652413]  ? find_vma+0x34/0x190
[  278.655973]  __do_page_fault+0x5e8/0xe60
[  278.660048]  ? trace_hardirqs_off+0xb8/0x310
[  278.664464]  do_page_fault+0xf2/0x7e0
[  278.668279]  ? vmalloc_sync_all+0x30/0x30
[  278.672430]  ? error_entry+0x70/0xd0
[  278.676143]  ? trace_hardirqs_off_caller+0xbb/0x310
[  278.681158]  ? trace_hardirqs_on_caller+0xc0/0x310
[  278.686102]  ? syscall_return_slowpath+0x5e0/0x5e0
[  278.691028]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  278.695868]  ? trace_hardirqs_on_caller+0x310/0x310
[  278.700895]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  278.706354]  ? prepare_exit_to_usermode+0x291/0x3b0
[  278.711370]  ? page_fault+0x8/0x30
[  278.714950]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  278.719810]  ? page_fault+0x8/0x30
[  278.723352]  page_fault+0x1e/0x30
[  278.726803] RIP: 0033:0x40f9c0
[  278.730013] Code: Bad RIP value.
[  278.733376] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  278.738776] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  278.746047] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  278.753335] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  278.760600] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  278.767870] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  278.775173] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  278.775239] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  278.781928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  278.781937] Call Trace:
[  278.788504] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  278.797789]  dump_stack+0x244/0x39d
[  278.800350] syz-fuzzer cpuset=/ mems_allowed=0
[  278.810566]  ? dump_stack_print_info.cold.1+0x20/0x20
[  278.823968]  warn_alloc.cold.116+0xb7/0x1bd
[  278.828321]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  278.833166]  ? lock_downgrade+0x900/0x900
[  278.837334]  ? trace_hardirqs_off+0xb8/0x310
[  278.841751]  ? trace_hardirqs_off+0xb8/0x310
[  278.846181]  __alloc_pages_slowpath+0x2651/0x2de0
[  278.851047]  ? warn_alloc+0x120/0x120
[  278.854850]  ? print_usage_bug+0xc0/0xc0
[  278.858921]  ? warn_alloc+0x120/0x120
[  278.862730]  ? warn_alloc+0x120/0x120
[  278.866534]  ? print_usage_bug+0xc0/0xc0
[  278.870600]  ? print_usage_bug+0xc0/0xc0
[  278.874676]  ? __lock_acquire+0x62f/0x4c20
[  278.878925]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.884473]  ? should_fail+0x22d/0xd01
[  278.888361]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  278.893467]  ? __lock_acquire+0x62f/0x4c20
[  278.897724]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  278.902837]  ? __lock_acquire+0x62f/0x4c20
[  278.907072]  ? should_fail+0x22d/0xd01
[  278.910979]  ? find_held_lock+0x36/0x1c0
[  278.915047]  ? mark_held_locks+0x130/0x130
[  278.919288]  ? mark_held_locks+0x130/0x130
[  278.923536]  ? zap_class+0x640/0x640
[  278.927249]  ? zap_class+0x640/0x640
[  278.930981]  ? print_usage_bug+0xc0/0xc0
[  278.935041]  ? do_raw_spin_unlock+0xa7/0x330
[  278.939448]  ? zap_class+0x640/0x640
[  278.943162]  ? print_usage_bug+0xc0/0xc0
[  278.947245]  ? wq_watchdog_touch+0x9c/0xfe
[  278.951479]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.957014]  ? check_preemption_disabled+0x48/0x280
[  278.962070]  ? __lock_is_held+0xb5/0x140
[  278.966157]  __alloc_pages_nodemask+0xad8/0xea0
[  278.970823]  ? zap_class+0x640/0x640
[  278.974540]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  278.979577]  ? find_held_lock+0x36/0x1c0
[  278.983656]  ? ____cache_alloc_node+0x1c7/0x1e0
[  278.988327]  ? lock_downgrade+0x900/0x900
[  278.992494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.998036]  cache_grow_begin+0xa5/0x8c0
[  279.002099]  ? do_raw_spin_unlock+0xa7/0x330
[  279.006527]  fallback_alloc+0x204/0x2e0
[  279.010522]  ____cache_alloc_node+0x1c7/0x1e0
[  279.015026]  kmem_cache_alloc_node+0xe3/0x730
[  279.019536]  ? ipv6_get_ifaddr+0x42e/0x620
[  279.023795]  __alloc_skb+0x119/0x770
[  279.027504]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.032786]  ? netdev_alloc_frag+0x1f0/0x1f0
[  279.037209]  ? lock_downgrade+0x900/0x900
[  279.041383]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.046931]  ? refcount_sub_and_test_checked+0x203/0x310
[  279.052384]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  279.057834]  ? addrconf_rs_timer+0x690/0x690
[  279.062252]  ndisc_alloc_skb+0x144/0x340
[  279.066318]  ndisc_send_rs+0x331/0x6e0
[  279.070208]  addrconf_rs_timer+0x314/0x690
[  279.074449]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.078693]  call_timer_fn+0x272/0x920
[  279.082588]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.086817]  ? process_timeout+0x40/0x40
[  279.090906]  ? __run_timers+0x7da/0xc70
[  279.094918]  ? _raw_spin_unlock_irq+0x27/0x80
[  279.099461]  ? _raw_spin_unlock_irq+0x27/0x80
[  279.103954]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.108192]  ? lockdep_hardirqs_on+0x296/0x5b0
[  279.112772]  ? trace_hardirqs_on+0xbd/0x310
[  279.117089]  ? kasan_check_read+0x11/0x20
[  279.121232]  ? __run_timers+0x7da/0xc70
[  279.125204]  ? trace_hardirqs_off_caller+0x310/0x310
[  279.130322]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.134559]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.138789]  __run_timers+0x7e5/0xc70
[  279.142594]  ? timer_fixup_init+0x70/0x70
[  279.146757]  ? _raw_spin_unlock_irq+0x27/0x80
[  279.151249]  ? _raw_spin_unlock_irq+0x27/0x80
[  279.155763]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  279.160343]  ? trace_hardirqs_on+0xbd/0x310
[  279.164683]  ? kasan_check_read+0x11/0x20
[  279.168834]  ? finish_task_switch+0x1f4/0x910
[  279.173330]  ? trace_hardirqs_off_caller+0x310/0x310
[  279.178433]  ? compat_start_thread+0x80/0x80
[  279.182958]  ? pvclock_read_flags+0x160/0x160
[  279.187454]  ? __switch_to_asm+0x34/0x70
[  279.191530]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.197085]  ? check_preemption_disabled+0x48/0x280
[  279.202125]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  279.207666]  ? rcu_pm_notify+0xc0/0xc0
[  279.211559]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.217096]  ? check_preemption_disabled+0x48/0x280
[  279.222117]  run_timer_softirq+0x52/0xb0
[  279.226183]  ? rcu_read_lock_sched_held+0x14f/0x180
[  279.231202]  __do_softirq+0x308/0xb7e
[  279.235010]  ? trace_hardirqs_on_caller+0xc0/0x310
[  279.239945]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  279.245048]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  279.250497]  ? trace_hardirqs_on+0x310/0x310
[  279.254958]  ? schedule+0x108/0x460
[  279.258603]  ? trace_hardirqs_off+0xb8/0x310
[  279.263028]  ? smpboot_thread_fn+0x68b/0xa00
[  279.267443]  ? trace_hardirqs_on+0x310/0x310
[  279.271852]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.277398]  ? check_preemption_disabled+0x48/0x280
[  279.282413]  ? takeover_tasklets+0xa90/0xa90
[  279.286821]  run_ksoftirqd+0x5e/0x100
[  279.290618]  smpboot_thread_fn+0x68b/0xa00
[  279.294857]  ? sort_range+0x30/0x30
[  279.298488]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  279.303609]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.309164]  ? __kthread_parkme+0xfb/0x1a0
[  279.313404]  ? sort_range+0x30/0x30
[  279.317049]  kthread+0x35a/0x440
[  279.320417]  ? kthread_stop+0x900/0x900
[  279.324394]  ret_from_fork+0x3a/0x50
[  279.328120] warn_alloc_show_mem: 1 callbacks suppressed
[  279.328131] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  279.328133] Mem-Info:
[  279.328165] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  279.328165]  active_file:12 inactive_file:14 isolated_file:0
[  279.328165]  unevictable:0 dirty:0 writeback:0 unstable:0
[  279.328165]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  279.328165]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  279.328165]  free:13757 free_pcp:113 free_cma:0
[  279.333495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  279.340443] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  279.342842] Call Trace:
[  279.375878] 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
[  279.385226]  <IRQ>
[  279.413064] lowmem_reserve[]: 0 2818 6321 6321
[  279.415658]  dump_stack+0x244/0x39d
[  279.441742] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  279.443897]  ? dump_stack_print_info.cold.1+0x20/0x20
[  279.448455] lowmem_reserve[]: 0 0 3503 3503
[  279.452085]  warn_alloc.cold.116+0xb7/0x1bd
[  279.479551] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  279.484730]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  279.489029] lowmem_reserve[]: 0 0 0 0
[  279.493345]  ? lock_downgrade+0x900/0x900
[  279.522383] 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
[  279.527228]  ? trace_hardirqs_off+0xb8/0x310
[  279.531018] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  279.535163]  ? trace_hardirqs_off+0xb8/0x310
[  279.548658] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  279.553063]  __alloc_pages_slowpath+0x2651/0x2de0
[  279.568563] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  279.573027]  ? warn_alloc+0x120/0x120
[  279.587549] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  279.592411]  ? print_usage_bug+0xc0/0xc0
[  279.601220] 4236 total pagecache pages
[  279.605023]  ? warn_alloc+0x120/0x120
[  279.613577] 0 pages in swap cache
[  279.617640]  ? warn_alloc+0x120/0x120
[  279.621503] Swap cache stats: add 0, delete 0, find 0/0
[  279.625298]  ? print_usage_bug+0xc0/0xc0
[  279.628760] Free swap  = 0kB
[  279.632570]  ? kvm_clock_read+0x18/0x30
[  279.637926] Total swap = 0kB
[  279.641975]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  279.644969] 1965979 pages RAM
[  279.648945]  ? print_usage_bug+0xc0/0xc0
[  279.651943] 0 pages HighMem/MovableOnly
[  279.656950]  ? __lock_acquire+0x62f/0x4c20
[  279.660047] 342854 pages reserved
[  279.664101]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.668050] 0 pages cma reserved
[  279.672277]  ? should_fail+0x22d/0xd01
[  279.675801] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  279.681245]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.681263]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  279.684706] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  279.688488]  ? __lock_acquire+0x62f/0x4c20
[  279.694968] ksoftirqd/0 cpuset=/ mems_allowed=0
[  279.700234]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  279.729553]  ? __lock_acquire+0x62f/0x4c20
[  279.733784]  ? should_fail+0x22d/0xd01
[  279.737669]  ? rcu_irq_exit+0x1a2/0x390
[  279.741687]  ? mark_held_locks+0x130/0x130
[  279.745928]  ? mark_held_locks+0x130/0x130
[  279.750168]  ? mark_held_locks+0xc7/0x130
[  279.754313]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  279.759325]  ? zap_class+0x640/0x640
[  279.763042]  ? print_usage_bug+0xc0/0xc0
[  279.767123]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.772659]  ? check_preemption_disabled+0x48/0x280
[  279.777681]  ? __lock_is_held+0xb5/0x140
[  279.781743]  __alloc_pages_nodemask+0xad8/0xea0
[  279.786419]  ? zap_class+0x640/0x640
[  279.790167]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  279.795193]  ? find_held_lock+0x36/0x1c0
[  279.799260]  ? ____cache_alloc_node+0x1c7/0x1e0
[  279.803934]  ? lock_downgrade+0x900/0x900
[  279.808089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.813626]  cache_grow_begin+0xa5/0x8c0
[  279.817715]  ? do_raw_spin_unlock+0xa7/0x330
[  279.822157]  fallback_alloc+0x204/0x2e0
[  279.826149]  ____cache_alloc_node+0x1c7/0x1e0
[  279.830660]  kmem_cache_alloc_node+0xe3/0x730
[  279.835153]  ? ipv6_get_ifaddr+0x42e/0x620
[  279.839404]  __alloc_skb+0x119/0x770
[  279.843116]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.848412]  ? netdev_alloc_frag+0x1f0/0x1f0
[  279.852822]  ? lock_downgrade+0x900/0x900
[  279.856975]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.862509]  ? refcount_sub_and_test_checked+0x203/0x310
[  279.867963]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  279.873436]  ? addrconf_rs_timer+0x690/0x690
[  279.877855]  ndisc_alloc_skb+0x144/0x340
[  279.881942]  ndisc_send_rs+0x331/0x6e0
[  279.885836]  addrconf_rs_timer+0x314/0x690
[  279.890077]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.894324]  call_timer_fn+0x272/0x920
[  279.898210]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.902447]  ? process_timeout+0x40/0x40
[  279.906525]  ? mark_held_locks+0xc7/0x130
[  279.910675]  ? _raw_spin_unlock_irq+0x27/0x80
[  279.915168]  ? _raw_spin_unlock_irq+0x27/0x80
[  279.919660]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.923902]  ? lockdep_hardirqs_on+0x296/0x5b0
[  279.928487]  ? trace_hardirqs_on+0xbd/0x310
[  279.932823]  ? kasan_check_read+0x11/0x20
[  279.936972]  ? __run_timers+0x7da/0xc70
[  279.940961]  ? trace_hardirqs_off_caller+0x310/0x310
[  279.946072]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.950332]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.954577]  __run_timers+0x7e5/0xc70
[  279.958404]  ? timer_fixup_init+0x70/0x70
[  279.962555]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  279.967576]  ? zap_class+0x640/0x640
[  279.971299]  ? print_usage_bug+0xc0/0xc0
[  279.975364]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  279.980566]  ? find_held_lock+0x36/0x1c0
[  279.984631]  ? zap_class+0x640/0x640
[  279.988384]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.993952]  ? check_preemption_disabled+0x48/0x280
[  279.998983]  ? __lock_is_held+0xb5/0x140
[  280.003044]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.008594]  ? check_preemption_disabled+0x48/0x280
[  280.013617]  run_timer_softirq+0x52/0xb0
[  280.017679]  ? rcu_read_lock_sched_held+0x14f/0x180
[  280.022697]  __do_softirq+0x308/0xb7e
[  280.026507]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  280.031003]  ? lock_downgrade+0x900/0x900
[  280.035153]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  280.040267]  ? pvclock_read_flags+0x160/0x160
[  280.044778]  ? lapic_next_event+0x5a/0x90
[  280.048929]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.054474]  ? kvm_clock_read+0x18/0x30
[  280.058456]  ? kvm_sched_clock_read+0x9/0x20
[  280.062868]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.068421]  ? check_preemption_disabled+0x48/0x280
[  280.073449]  irq_exit+0x17f/0x1c0
[  280.076911]  smp_apic_timer_interrupt+0x1cb/0x760
[  280.081754]  ? smp_call_function_single_interrupt+0x159/0x650
[  280.087638]  ? smp_call_function_single_interrupt+0x650/0x650
[  280.093523]  ? interrupt_entry+0xb5/0xc0
[  280.097587]  ? trace_hardirqs_off_caller+0xbb/0x310
[  280.102600]  ? trace_hardirqs_off_caller+0xbb/0x310
[  280.107616]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.112462]  ? trace_hardirqs_on_caller+0x310/0x310
[  280.117480]  ? trace_hardirqs_on_caller+0x310/0x310
[  280.122494]  ? task_prio+0x50/0x50
[  280.126034]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.131574]  ? check_preemption_disabled+0x48/0x280
[  280.136611]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.141478]  apic_timer_interrupt+0xf/0x20
[  280.145705]  </IRQ>
[  280.147971] RIP: 0010:dump_stack+0x358/0x39d
[  280.152384] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  280.171319] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  280.179025] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  280.186291] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  280.193560] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  280.200853] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  280.208125] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  280.215413]  ? dump_stack+0x34f/0x39d
[  280.219234]  ? dump_stack_print_info.cold.1+0x20/0x20
[  280.224433]  ? mark_held_locks+0x130/0x130
[  280.228673]  ? mark_held_locks+0x130/0x130
[  280.232922]  dump_header+0x27b/0xf72
[  280.236652]  ? pagefault_out_of_memory+0x197/0x197
[  280.241588]  ? __lock_acquire+0x62f/0x4c20
[  280.245839]  ? percpu_ref_get_many+0x240/0x240
[  280.250426]  ? print_usage_bug+0xc0/0xc0
[  280.254493]  ? zap_class+0x640/0x640
[  280.258217]  ? print_usage_bug+0xc0/0xc0
[  280.262278]  ? print_usage_bug+0xc0/0xc0
[  280.266340]  ? zap_class+0x640/0x640
[  280.270058]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.275600]  ? find_held_lock+0x36/0x1c0
[  280.279669]  ? mark_held_locks+0xc7/0x130
[  280.283816]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  280.288935]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  280.294056]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  280.298638]  ? trace_hardirqs_on+0xbd/0x310
[  280.302977]  ? kasan_check_read+0x11/0x20
[  280.307138]  ? ___ratelimit+0x3b4/0x672
[  280.311127]  ? trace_hardirqs_off_caller+0x310/0x310
[  280.316242]  ? trace_hardirqs_on+0x310/0x310
[  280.320658]  ? lock_downgrade+0x900/0x900
[  280.324842]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  280.329964]  ? ___ratelimit+0x3b9/0x672
[  280.333966]  ? idr_get_free+0xf70/0xf70
[  280.337969]  ? find_held_lock+0x36/0x1c0
[  280.342041]  oom_kill_process.cold.27+0x10/0x903
[  280.346794]  ? zap_class+0x640/0x640
[  280.350509]  ? check_preemption_disabled+0x48/0x280
[  280.355531]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.360460]  ? kasan_check_read+0x11/0x20
[  280.364604]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.369881]  ? oom_evaluate_task+0x540/0x540
[  280.374314]  ? find_held_lock+0x36/0x1c0
[  280.378424]  ? out_of_memory+0x974/0x1430
[  280.382571]  ? lock_downgrade+0x900/0x900
[  280.386733]  ? check_preemption_disabled+0x48/0x280
[  280.391752]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.396723]  ? kasan_check_read+0x11/0x20
[  280.400868]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.406154]  ? rcu_softirq_qs+0x20/0x20
[  280.410131]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.415664]  ? oom_evaluate_task+0x302/0x540
[  280.420095]  out_of_memory+0xa84/0x1430
[  280.424085]  ? oom_killer_disable+0x3a0/0x3a0
[  280.428579]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  280.433681]  ? __ww_mutex_check_waiters+0x160/0x160
[  280.438735]  __alloc_pages_slowpath+0x232c/0x2de0
[  280.443609]  ? warn_alloc+0x120/0x120
[  280.447424]  ? mark_held_locks+0x130/0x130
[  280.451658]  ? find_get_entry+0xaae/0x1120
[  280.455930]  ? filemap_map_pages+0x1a20/0x1a20
[  280.460518]  ? zap_class+0x640/0x640
[  280.464238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.469774]  ? check_preemption_disabled+0x48/0x280
[  280.474788]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.480324]  ? should_fail+0x22d/0xd01
[  280.484214]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  280.489318]  ? zap_class+0x640/0x640
[  280.493068]  ? __lock_is_held+0xb5/0x140
[  280.497136]  ? mark_held_locks+0x130/0x130
[  280.501370]  ? lock_release+0xa00/0xa00
[  280.505346]  ? perf_trace_sched_process_exec+0x860/0x860
[  280.510810]  ? xa_load+0x2ba/0x460
[  280.514372]  ? lock_downgrade+0x900/0x900
[  280.518525]  ? __might_sleep+0x95/0x190
[  280.522505]  __alloc_pages_nodemask+0xad8/0xea0
[  280.527181]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  280.532195]  ? __page_cache_alloc+0x191/0x5c0
[  280.536689]  ? xa_load+0x2e1/0x460
[  280.540233]  ? xa_clear_mark+0x40/0x40
[  280.544121]  ? zap_class+0x640/0x640
[  280.547840]  ? zap_class+0x640/0x640
[  280.551552]  ? zap_class+0x640/0x640
[  280.555283]  ? __do_page_cache_readahead+0x663/0x810
[  280.560407]  ? find_held_lock+0x36/0x1c0
[  280.565002]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  280.570565]  alloc_pages_current+0x173/0x350
[  280.574979]  __page_cache_alloc+0x38c/0x5c0
[  280.579300]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.584230]  ? kasan_check_read+0x11/0x20
[  280.588377]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.593658]  ? generic_perform_write+0x6a0/0x6a0
[  280.598435]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.603996]  ? check_preemption_disabled+0x48/0x280
[  280.609021]  filemap_fault+0x1595/0x25f0
[  280.613091]  ? __lock_page_or_retry+0xa00/0xa00
[  280.617759]  ? mark_held_locks+0x130/0x130
[  280.622035]  ? filemap_map_pages+0xd6b/0x1a20
[  280.626529]  ? lock_downgrade+0x900/0x900
[  280.630703]  ? check_preemption_disabled+0x48/0x280
[  280.635844]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.640770]  ? kasan_check_read+0x11/0x20
[  280.644936]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.650244]  ? rcu_softirq_qs+0x20/0x20
[  280.654240]  ? filemap_map_pages+0xd92/0x1a20
[  280.658744]  ? find_get_entries_tag+0x1400/0x1400
[  280.663591]  ? debug_object_destroy+0x2b0/0x2b0
[  280.668290]  ? lock_pi_update_atomic+0x150/0x150
[  280.673060]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.678609]  ? lock_acquire+0x1ed/0x520
[  280.682598]  ? ext4_filemap_fault+0x7a/0xad
[  280.686944]  ? lock_release+0xa00/0xa00
[  280.690930]  ? perf_trace_sched_process_exec+0x860/0x860
[  280.696383]  ? print_usage_bug+0xc0/0xc0
[  280.700448]  ? print_usage_bug+0xc0/0xc0
[  280.704521]  ? down_read+0x8d/0x120
[  280.708149]  ? ext4_filemap_fault+0x7a/0xad
[  280.712469]  ? __down_interruptible+0x700/0x700
[  280.717147]  ext4_filemap_fault+0x82/0xad
[  280.721300]  __do_fault+0x100/0x6b0
[  280.724925]  ? find_held_lock+0x36/0x1c0
[  280.728994]  ? pmd_devmap_trans_unstable+0x220/0x220
[  280.734104]  ? mark_held_locks+0x130/0x130
[  280.738340]  ? mark_held_locks+0x130/0x130
[  280.742573]  ? _raw_spin_unlock_irq+0x27/0x80
[  280.747067]  ? _raw_spin_unlock_irq+0x27/0x80
[  280.751564]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  280.756149]  ? kasan_check_read+0x11/0x20
[  280.760296]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.765856]  __handle_mm_fault+0x3ea0/0x5be0
[  280.770283]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  280.775142]  ? finish_task_switch+0x1f4/0x910
[  280.779637]  ? finish_task_switch+0x1b4/0x910
[  280.784133]  ? __switch_to_asm+0x34/0x70
[  280.788220]  ? preempt_notifier_register+0x200/0x200
[  280.793329]  ? __switch_to_asm+0x34/0x70
[  280.797413]  ? __switch_to_asm+0x34/0x70
[  280.801489]  ? zap_class+0x640/0x640
[  280.805205]  ? zap_class+0x640/0x640
[  280.808919]  ? __x64_sys_futex+0x53e/0x6a0
[  280.813173]  ? find_held_lock+0x36/0x1c0
[  280.817260]  ? handle_mm_fault+0x42a/0xc70
[  280.821497]  ? lock_downgrade+0x900/0x900
[  280.825642]  ? check_preemption_disabled+0x48/0x280
[  280.830663]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.835618]  ? kasan_check_read+0x11/0x20
[  280.839765]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.845042]  ? rcu_softirq_qs+0x20/0x20
[  280.849052]  ? trace_hardirqs_off_caller+0x310/0x310
[  280.854177]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.859747]  ? check_preemption_disabled+0x48/0x280
[  280.864772]  handle_mm_fault+0x54f/0xc70
[  280.868863]  ? __handle_mm_fault+0x5be0/0x5be0
[  280.873460]  ? find_vma+0x34/0x190
[  280.877004]  __do_page_fault+0x5e8/0xe60
[  280.881062]  ? trace_hardirqs_off+0xb8/0x310
[  280.885482]  do_page_fault+0xf2/0x7e0
[  280.889283]  ? vmalloc_sync_all+0x30/0x30
[  280.893427]  ? error_entry+0x70/0xd0
[  280.897143]  ? trace_hardirqs_off_caller+0xbb/0x310
[  280.902158]  ? trace_hardirqs_on_caller+0xc0/0x310
[  280.907104]  ? syscall_return_slowpath+0x5e0/0x5e0
[  280.912032]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.916872]  ? trace_hardirqs_on_caller+0x310/0x310
[  280.921895]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  280.927363]  ? prepare_exit_to_usermode+0x291/0x3b0
[  280.932414]  ? page_fault+0x8/0x30
[  280.935958]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.940801]  ? page_fault+0x8/0x30
[  280.944350]  page_fault+0x1e/0x30
[  280.947817] RIP: 0033:0x40f9c0
[  280.951029] Code: Bad RIP value.
[  280.954408] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  280.959800] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  280.967068] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  280.974332] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  280.981596] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  280.988873] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  280.996179] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  280.996242] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  281.002937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  281.002945] Call Trace:
[  281.009522] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  281.018773]  dump_stack+0x244/0x39d
[  281.021334] syz-fuzzer cpuset=/ mems_allowed=0
[  281.031584]  ? dump_stack_print_info.cold.1+0x20/0x20
[  281.044951]  warn_alloc.cold.116+0xb7/0x1bd
[  281.049277]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  281.054124]  ? lock_downgrade+0x900/0x900
[  281.058281]  ? trace_hardirqs_off+0xb8/0x310
[  281.062693]  ? trace_hardirqs_off+0xb8/0x310
[  281.067118]  __alloc_pages_slowpath+0x2651/0x2de0
[  281.071992]  ? warn_alloc+0x120/0x120
[  281.075794]  ? print_usage_bug+0xc0/0xc0
[  281.079858]  ? warn_alloc+0x120/0x120
[  281.083675]  ? warn_alloc+0x120/0x120
[  281.087474]  ? print_usage_bug+0xc0/0xc0
[  281.091540]  ? print_usage_bug+0xc0/0xc0
[  281.095601]  ? __lock_acquire+0x62f/0x4c20
[  281.099839]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.105376]  ? should_fail+0x22d/0xd01
[  281.109268]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.114372]  ? __lock_acquire+0x62f/0x4c20
[  281.118613]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.123712]  ? __lock_acquire+0x62f/0x4c20
[  281.127952]  ? should_fail+0x22d/0xd01
[  281.131875]  ? mark_held_locks+0x130/0x130
[  281.136127]  ? mark_held_locks+0x130/0x130
[  281.140370]  ? zap_class+0x640/0x640
[  281.144087]  ? zap_class+0x640/0x640
[  281.147797]  ? print_usage_bug+0xc0/0xc0
[  281.151854]  ? mark_held_locks+0x130/0x130
[  281.156104]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.161649]  ? check_preemption_disabled+0x48/0x280
[  281.166686]  ? __lock_is_held+0xb5/0x140
[  281.170754]  __alloc_pages_nodemask+0xad8/0xea0
[  281.175449]  ? zap_class+0x640/0x640
[  281.179185]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  281.184217]  ? find_held_lock+0x36/0x1c0
[  281.188320]  ? ____cache_alloc_node+0x1c7/0x1e0
[  281.192995]  ? lock_downgrade+0x900/0x900
[  281.197199]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.202744]  cache_grow_begin+0xa5/0x8c0
[  281.206808]  ? do_raw_spin_unlock+0xa7/0x330
[  281.211221]  fallback_alloc+0x204/0x2e0
[  281.215204]  ____cache_alloc_node+0x1c7/0x1e0
[  281.219721]  kmem_cache_alloc_node+0xe3/0x730
[  281.224221]  ? ipv6_get_ifaddr+0x42e/0x620
[  281.228466]  __alloc_skb+0x119/0x770
[  281.232191]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.237466]  ? netdev_alloc_frag+0x1f0/0x1f0
[  281.241882]  ? lock_downgrade+0x900/0x900
[  281.246062]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.251614]  ? refcount_sub_and_test_checked+0x203/0x310
[  281.257065]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  281.262516]  ? addrconf_rs_timer+0x690/0x690
[  281.266945]  ndisc_alloc_skb+0x144/0x340
[  281.271014]  ndisc_send_rs+0x331/0x6e0
[  281.274919]  addrconf_rs_timer+0x314/0x690
[  281.279163]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.283414]  call_timer_fn+0x272/0x920
[  281.287304]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.291536]  ? process_timeout+0x40/0x40
[  281.295602]  ? __run_timers+0x7da/0xc70
[  281.299590]  ? _raw_spin_unlock_irq+0x27/0x80
[  281.304082]  ? _raw_spin_unlock_irq+0x27/0x80
[  281.308578]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.312811]  ? lockdep_hardirqs_on+0x296/0x5b0
[  281.317394]  ? trace_hardirqs_on+0xbd/0x310
[  281.321736]  ? kasan_check_read+0x11/0x20
[  281.325891]  ? __run_timers+0x7da/0xc70
[  281.329870]  ? trace_hardirqs_off_caller+0x310/0x310
[  281.335007]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.339237]  __run_timers+0x7e5/0xc70
[  281.343047]  ? timer_fixup_init+0x70/0x70
[  281.347190]  ? _raw_spin_unlock_irq+0x27/0x80
[  281.351699]  ? _raw_spin_unlock_irq+0x27/0x80
[  281.356230]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  281.360816]  ? trace_hardirqs_on+0xbd/0x310
[  281.365136]  ? kasan_check_read+0x11/0x20
[  281.369281]  ? finish_task_switch+0x1f4/0x910
[  281.373790]  ? trace_hardirqs_off_caller+0x310/0x310
[  281.378903]  ? compat_start_thread+0x80/0x80
[  281.383330]  ? pvclock_read_flags+0x160/0x160
[  281.387822]  ? __switch_to_asm+0x34/0x70
[  281.391881]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.397431]  ? check_preemption_disabled+0x48/0x280
[  281.402456]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  281.407995]  ? rcu_pm_notify+0xc0/0xc0
[  281.411913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.417463]  ? check_preemption_disabled+0x48/0x280
[  281.422486]  run_timer_softirq+0x52/0xb0
[  281.426545]  ? rcu_read_lock_sched_held+0x14f/0x180
[  281.431563]  __do_softirq+0x308/0xb7e
[  281.435363]  ? trace_hardirqs_on_caller+0xc0/0x310
[  281.440306]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  281.445419]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  281.450867]  ? trace_hardirqs_on+0x310/0x310
[  281.455298]  ? schedule+0x108/0x460
[  281.458936]  ? trace_hardirqs_off+0xb8/0x310
[  281.463341]  ? smpboot_thread_fn+0x68b/0xa00
[  281.467749]  ? trace_hardirqs_on+0x310/0x310
[  281.472161]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.477701]  ? check_preemption_disabled+0x48/0x280
[  281.482719]  ? takeover_tasklets+0xa90/0xa90
[  281.487133]  run_ksoftirqd+0x5e/0x100
[  281.490935]  smpboot_thread_fn+0x68b/0xa00
[  281.495172]  ? sort_range+0x30/0x30
[  281.498799]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  281.503917]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.509455]  ? __kthread_parkme+0xfb/0x1a0
[  281.513709]  ? sort_range+0x30/0x30
[  281.517346]  kthread+0x35a/0x440
[  281.520716]  ? kthread_stop+0x900/0x900
[  281.524703]  ret_from_fork+0x3a/0x50
[  281.528431] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  281.528436] warn_alloc_show_mem: 1 callbacks suppressed
[  281.528442] Mem-Info:
[  281.535361] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  281.540744] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  281.540744]  active_file:12 inactive_file:14 isolated_file:0
[  281.540744]  unevictable:0 dirty:0 writeback:0 unstable:0
[  281.540744]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  281.540744]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  281.540744]  free:13757 free_pcp:113 free_cma:0
[  281.543115] Call Trace:
[  281.552586] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  281.585599]  <IRQ>
[  281.588168] 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
[  281.616008]  dump_stack+0x244/0x39d
[  281.618146] lowmem_reserve[]: 0 2818 6321 6321
[  281.644249]  ? dump_stack_print_info.cold.1+0x20/0x20
[  281.647849] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  281.652439]  warn_alloc.cold.116+0xb7/0x1bd
[  281.657594] lowmem_reserve[]: 0 0 3503 3503
[  281.685124]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  281.689437] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  281.693749]  ? lock_downgrade+0x900/0x900
[  281.698568] lowmem_reserve[]: 0 0 0 0
[  281.727624]  ? trace_hardirqs_off+0xb8/0x310
[  281.731747] 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
[  281.735546]  ? trace_hardirqs_off+0xb8/0x310
[  281.739934] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  281.753454]  __alloc_pages_slowpath+0x2651/0x2de0
[  281.757838] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  281.773369]  ? warn_alloc+0x120/0x120
[  281.778191] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  281.792742]  ? print_usage_bug+0xc0/0xc0
[  281.796523] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  281.805343]  ? warn_alloc+0x120/0x120
[  281.809377] 4236 total pagecache pages
[  281.817944]  ? warn_alloc+0x120/0x120
[  281.821723] 0 pages in swap cache
[  281.825611]  ? print_usage_bug+0xc0/0xc0
[  281.829407] Swap cache stats: add 0, delete 0, find 0/0
[  281.832878]  ? kvm_clock_read+0x18/0x30
[  281.836951] Free swap  = 0kB
[  281.842357]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  281.846303] Total swap = 0kB
[  281.849332]  ? print_usage_bug+0xc0/0xc0
[  281.854322] 1965979 pages RAM
[  281.857339]  ? __lock_acquire+0x62f/0x4c20
[  281.861385] 0 pages HighMem/MovableOnly
[  281.864502]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.868743] 342854 pages reserved
[  281.872712]  ? should_fail+0x22d/0xd01
[  281.878223] 0 pages cma reserved
[  281.881669]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.885590] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  281.888901]  ? __lock_acquire+0x62f/0x4c20
[  281.894033] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  281.900467]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.904677] ksoftirqd/0 cpuset=/ mems_allowed=0
[  281.914980]  ? __lock_acquire+0x62f/0x4c20
[  281.914996]  ? should_fail+0x22d/0xd01
[  281.932839]  ? mark_held_locks+0x130/0x130
[  281.937085]  ? mark_held_locks+0x130/0x130
[  281.941349]  ? zap_class+0x640/0x640
[  281.945066]  ? print_usage_bug+0xc0/0xc0
[  281.949130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.954672]  ? check_preemption_disabled+0x48/0x280
[  281.959715]  ? __lock_is_held+0xb5/0x140
[  281.963806]  __alloc_pages_nodemask+0xad8/0xea0
[  281.968487]  ? zap_class+0x640/0x640
[  281.972224]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  281.977264]  ? find_held_lock+0x36/0x1c0
[  281.981353]  ? ____cache_alloc_node+0x1c7/0x1e0
[  281.986028]  ? lock_downgrade+0x900/0x900
[  281.990187]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.995729]  cache_grow_begin+0xa5/0x8c0
[  281.999787]  ? do_raw_spin_unlock+0xa7/0x330
[  282.004207]  fallback_alloc+0x204/0x2e0
[  282.008189]  ____cache_alloc_node+0x1c7/0x1e0
[  282.012688]  kmem_cache_alloc_node+0xe3/0x730
[  282.017188]  ? ipv6_get_ifaddr+0x42e/0x620
[  282.021438]  __alloc_skb+0x119/0x770
[  282.025151]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.030444]  ? netdev_alloc_frag+0x1f0/0x1f0
[  282.034851]  ? lock_downgrade+0x900/0x900
[  282.039018]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.044572]  ? refcount_sub_and_test_checked+0x203/0x310
[  282.050039]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  282.055503]  ? addrconf_rs_timer+0x690/0x690
[  282.059933]  ndisc_alloc_skb+0x144/0x340
[  282.063998]  ndisc_send_rs+0x331/0x6e0
[  282.067900]  addrconf_rs_timer+0x314/0x690
[  282.072141]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.076404]  call_timer_fn+0x272/0x920
[  282.080289]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.084537]  ? process_timeout+0x40/0x40
[  282.088612]  ? mark_held_locks+0xc7/0x130
[  282.092779]  ? _raw_spin_unlock_irq+0x27/0x80
[  282.097273]  ? _raw_spin_unlock_irq+0x27/0x80
[  282.101765]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.106028]  ? lockdep_hardirqs_on+0x296/0x5b0
[  282.110612]  ? trace_hardirqs_on+0xbd/0x310
[  282.114932]  ? kasan_check_read+0x11/0x20
[  282.119093]  ? __run_timers+0x7da/0xc70
[  282.123087]  ? trace_hardirqs_off_caller+0x310/0x310
[  282.128201]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.132481]  __run_timers+0x7e5/0xc70
[  282.136290]  ? timer_fixup_init+0x70/0x70
[  282.140442]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  282.145458]  ? zap_class+0x640/0x640
[  282.149197]  ? print_usage_bug+0xc0/0xc0
[  282.153257]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  282.158455]  ? find_held_lock+0x36/0x1c0
[  282.162520]  ? zap_class+0x640/0x640
[  282.166256]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.171806]  ? check_preemption_disabled+0x48/0x280
[  282.176831]  ? __lock_is_held+0xb5/0x140
[  282.180898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.186455]  ? check_preemption_disabled+0x48/0x280
[  282.191475]  run_timer_softirq+0x52/0xb0
[  282.195533]  ? rcu_read_lock_sched_held+0x14f/0x180
[  282.200560]  __do_softirq+0x308/0xb7e
[  282.204363]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  282.208855]  ? lock_downgrade+0x900/0x900
[  282.213030]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  282.218140]  ? pvclock_read_flags+0x160/0x160
[  282.222646]  ? lapic_next_event+0x5a/0x90
[  282.226823]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.232362]  ? kvm_clock_read+0x18/0x30
[  282.236333]  ? kvm_sched_clock_read+0x9/0x20
[  282.240739]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.246272]  ? check_preemption_disabled+0x48/0x280
[  282.251294]  irq_exit+0x17f/0x1c0
[  282.254746]  smp_apic_timer_interrupt+0x1cb/0x760
[  282.259585]  ? smp_call_function_single_interrupt+0x159/0x650
[  282.265517]  ? smp_call_function_single_interrupt+0x650/0x650
[  282.271420]  ? interrupt_entry+0xb5/0xc0
[  282.275482]  ? trace_hardirqs_off_caller+0xbb/0x310
[  282.280501]  ? trace_hardirqs_off_caller+0xbb/0x310
[  282.285535]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.290379]  ? trace_hardirqs_on_caller+0x310/0x310
[  282.295401]  ? trace_hardirqs_on_caller+0x310/0x310
[  282.300433]  ? task_prio+0x50/0x50
[  282.303991]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.309528]  ? check_preemption_disabled+0x48/0x280
[  282.314574]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.319450]  apic_timer_interrupt+0xf/0x20
[  282.323685]  </IRQ>
[  282.325956] RIP: 0010:dump_stack+0x358/0x39d
[  282.330363] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  282.349255] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  282.356959] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  282.364223] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  282.371521] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  282.378787] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  282.386051] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  282.393348]  ? dump_stack+0x34f/0x39d
[  282.397170]  ? dump_stack_print_info.cold.1+0x20/0x20
[  282.402359]  ? mark_held_locks+0x130/0x130
[  282.406607]  ? mark_held_locks+0x130/0x130
[  282.410857]  dump_header+0x27b/0xf72
[  282.414599]  ? pagefault_out_of_memory+0x197/0x197
[  282.419535]  ? __lock_acquire+0x62f/0x4c20
[  282.423807]  ? percpu_ref_get_many+0x240/0x240
[  282.428390]  ? print_usage_bug+0xc0/0xc0
[  282.432620]  ? zap_class+0x640/0x640
[  282.436385]  ? print_usage_bug+0xc0/0xc0
[  282.440448]  ? print_usage_bug+0xc0/0xc0
[  282.444526]  ? zap_class+0x640/0x640
[  282.448255]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.453794]  ? find_held_lock+0x36/0x1c0
[  282.457863]  ? mark_held_locks+0xc7/0x130
[  282.462033]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  282.467151]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  282.472269]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  282.476855]  ? trace_hardirqs_on+0xbd/0x310
[  282.481203]  ? kasan_check_read+0x11/0x20
[  282.485354]  ? ___ratelimit+0x3b4/0x672
[  282.489330]  ? trace_hardirqs_off_caller+0x310/0x310
[  282.494445]  ? trace_hardirqs_on+0x310/0x310
[  282.499044]  ? lock_downgrade+0x900/0x900
[  282.503200]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  282.508304]  ? ___ratelimit+0x3b9/0x672
[  282.512315]  ? idr_get_free+0xf70/0xf70
[  282.516287]  ? find_held_lock+0x36/0x1c0
[  282.520356]  oom_kill_process.cold.27+0x10/0x903
[  282.525129]  ? zap_class+0x640/0x640
[  282.528840]  ? check_preemption_disabled+0x48/0x280
[  282.533858]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  282.538821]  ? kasan_check_read+0x11/0x20
[  282.542973]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.548253]  ? oom_evaluate_task+0x540/0x540
[  282.552682]  ? find_held_lock+0x36/0x1c0
[  282.556762]  ? out_of_memory+0x974/0x1430
[  282.560921]  ? lock_downgrade+0x900/0x900
[  282.565576]  ? check_preemption_disabled+0x48/0x280
[  282.570596]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  282.575527]  ? kasan_check_read+0x11/0x20
[  282.579678]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.584954]  ? rcu_softirq_qs+0x20/0x20
[  282.588944]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.594482]  ? oom_evaluate_task+0x302/0x540
[  282.598916]  out_of_memory+0xa84/0x1430
[  282.602910]  ? oom_killer_disable+0x3a0/0x3a0
[  282.607417]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  282.612362]  ? __ww_mutex_check_waiters+0x160/0x160
[  282.617388]  __alloc_pages_slowpath+0x232c/0x2de0
[  282.622283]  ? warn_alloc+0x120/0x120
[  282.626088]  ? mark_held_locks+0x130/0x130
[  282.630329]  ? find_get_entry+0xaae/0x1120
[  282.634576]  ? filemap_map_pages+0x1a20/0x1a20
[  282.639165]  ? zap_class+0x640/0x640
[  282.642918]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.648458]  ? check_preemption_disabled+0x48/0x280
[  282.653505]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.659055]  ? should_fail+0x22d/0xd01
[  282.662947]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  282.668053]  ? zap_class+0x640/0x640
[  282.671790]  ? __lock_is_held+0xb5/0x140
[  282.675872]  ? mark_held_locks+0x130/0x130
[  282.680119]  ? lock_release+0xa00/0xa00
[  282.684094]  ? perf_trace_sched_process_exec+0x860/0x860
[  282.689564]  ? xa_load+0x2ba/0x460
[  282.693110]  ? lock_downgrade+0x900/0x900
[  282.697266]  ? __might_sleep+0x95/0x190
[  282.701254]  __alloc_pages_nodemask+0xad8/0xea0
[  282.705942]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  282.710960]  ? __page_cache_alloc+0x191/0x5c0
[  282.715454]  ? xa_load+0x2e1/0x460
[  282.718997]  ? xa_clear_mark+0x40/0x40
[  282.722897]  ? zap_class+0x640/0x640
[  282.726621]  ? zap_class+0x640/0x640
[  282.730335]  ? zap_class+0x640/0x640
[  282.734053]  ? __do_page_cache_readahead+0x663/0x810
[  282.739165]  ? find_held_lock+0x36/0x1c0
[  282.743246]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  282.748805]  alloc_pages_current+0x173/0x350
[  282.753218]  __page_cache_alloc+0x38c/0x5c0
[  282.757565]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  282.762510]  ? kasan_check_read+0x11/0x20
[  282.766674]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.771960]  ? generic_perform_write+0x6a0/0x6a0
[  282.776716]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.782254]  ? check_preemption_disabled+0x48/0x280
[  282.787295]  filemap_fault+0x1595/0x25f0
[  282.791389]  ? __lock_page_or_retry+0xa00/0xa00
[  282.796066]  ? mark_held_locks+0x130/0x130
[  282.800311]  ? filemap_map_pages+0xd6b/0x1a20
[  282.804822]  ? lock_downgrade+0x900/0x900
[  282.808971]  ? check_preemption_disabled+0x48/0x280
[  282.813989]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  282.818917]  ? kasan_check_read+0x11/0x20
[  282.823067]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.828361]  ? rcu_softirq_qs+0x20/0x20
[  282.832357]  ? filemap_map_pages+0xd92/0x1a20
[  282.836915]  ? find_get_entries_tag+0x1400/0x1400
[  282.841780]  ? debug_object_destroy+0x2b0/0x2b0
[  282.846457]  ? lock_pi_update_atomic+0x150/0x150
[  282.851213]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.856762]  ? lock_acquire+0x1ed/0x520
[  282.860739]  ? ext4_filemap_fault+0x7a/0xad
[  282.865072]  ? lock_release+0xa00/0xa00
[  282.869063]  ? perf_trace_sched_process_exec+0x860/0x860
[  282.874514]  ? print_usage_bug+0xc0/0xc0
[  282.878572]  ? print_usage_bug+0xc0/0xc0
[  282.882643]  ? down_read+0x8d/0x120
[  282.886300]  ? ext4_filemap_fault+0x7a/0xad
[  282.890622]  ? __down_interruptible+0x700/0x700
[  282.895299]  ext4_filemap_fault+0x82/0xad
[  282.899450]  __do_fault+0x100/0x6b0
[  282.903074]  ? find_held_lock+0x36/0x1c0
[  282.907135]  ? pmd_devmap_trans_unstable+0x220/0x220
[  282.912239]  ? mark_held_locks+0x130/0x130
[  282.916473]  ? mark_held_locks+0x130/0x130
[  282.920702]  ? _raw_spin_unlock_irq+0x27/0x80
[  282.925221]  ? _raw_spin_unlock_irq+0x27/0x80
[  282.929731]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  282.934311]  ? kasan_check_read+0x11/0x20
[  282.938470]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.944015]  __handle_mm_fault+0x3ea0/0x5be0
[  282.948450]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  282.953310]  ? finish_task_switch+0x1f4/0x910
[  282.957801]  ? finish_task_switch+0x1b4/0x910
[  282.962323]  ? __switch_to_asm+0x34/0x70
[  282.966383]  ? preempt_notifier_register+0x200/0x200
[  282.971498]  ? __switch_to_asm+0x34/0x70
[  282.975552]  ? __switch_to_asm+0x34/0x70
[  282.979620]  ? zap_class+0x640/0x640
[  282.983331]  ? zap_class+0x640/0x640
[  282.987054]  ? __x64_sys_futex+0x53e/0x6a0
[  282.991290]  ? find_held_lock+0x36/0x1c0
[  282.995359]  ? handle_mm_fault+0x42a/0xc70
[  282.999595]  ? lock_downgrade+0x900/0x900
[  283.003741]  ? check_preemption_disabled+0x48/0x280
[  283.008761]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  283.013717]  ? kasan_check_read+0x11/0x20
[  283.017863]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.023171]  ? rcu_softirq_qs+0x20/0x20
[  283.027147]  ? trace_hardirqs_off_caller+0x310/0x310
[  283.032253]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.037804]  ? check_preemption_disabled+0x48/0x280
[  283.042836]  handle_mm_fault+0x54f/0xc70
[  283.046904]  ? __handle_mm_fault+0x5be0/0x5be0
[  283.051493]  ? find_vma+0x34/0x190
[  283.055042]  __do_page_fault+0x5e8/0xe60
[  283.059101]  ? trace_hardirqs_off+0xb8/0x310
[  283.063532]  do_page_fault+0xf2/0x7e0
[  283.067332]  ? vmalloc_sync_all+0x30/0x30
[  283.071511]  ? error_entry+0x70/0xd0
[  283.075230]  ? trace_hardirqs_off_caller+0xbb/0x310
[  283.080257]  ? trace_hardirqs_on_caller+0xc0/0x310
[  283.085208]  ? syscall_return_slowpath+0x5e0/0x5e0
[  283.090152]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.094996]  ? trace_hardirqs_on_caller+0x310/0x310
[  283.100011]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  283.105465]  ? prepare_exit_to_usermode+0x291/0x3b0
[  283.110480]  ? page_fault+0x8/0x30
[  283.114022]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.118900]  ? page_fault+0x8/0x30
[  283.122476]  page_fault+0x1e/0x30
[  283.125940] RIP: 0033:0x40f9c0
[  283.129182] Code: Bad RIP value.
[  283.132536] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  283.137896] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  283.145166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  283.152431] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  283.159708] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  283.167003] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  283.174309] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  283.174394] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  283.181057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  283.181066] Call Trace:
[  283.187650] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  283.196939]  dump_stack+0x244/0x39d
[  283.199500] syz-fuzzer cpuset=/ mems_allowed=0
[  283.209717]  ? dump_stack_print_info.cold.1+0x20/0x20
[  283.223082]  warn_alloc.cold.116+0xb7/0x1bd
[  283.227408]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  283.232253]  ? lock_downgrade+0x900/0x900
[  283.236415]  ? trace_hardirqs_off+0xb8/0x310
[  283.240831]  ? trace_hardirqs_off+0xb8/0x310
[  283.245247]  __alloc_pages_slowpath+0x2651/0x2de0
[  283.250113]  ? warn_alloc+0x120/0x120
[  283.253924]  ? print_usage_bug+0xc0/0xc0
[  283.257987]  ? warn_alloc+0x120/0x120
[  283.261808]  ? warn_alloc+0x120/0x120
[  283.265613]  ? print_usage_bug+0xc0/0xc0
[  283.269702]  ? print_usage_bug+0xc0/0xc0
[  283.273767]  ? __lock_acquire+0x62f/0x4c20
[  283.278007]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.283541]  ? should_fail+0x22d/0xd01
[  283.287443]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  283.292543]  ? __lock_acquire+0x62f/0x4c20
[  283.296780]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  283.301875]  ? __lock_acquire+0x62f/0x4c20
[  283.306113]  ? should_fail+0x22d/0xd01
[  283.310000]  ? find_held_lock+0x36/0x1c0
[  283.314069]  ? mark_held_locks+0x130/0x130
[  283.318306]  ? mark_held_locks+0x130/0x130
[  283.322535]  ? zap_class+0x640/0x640
[  283.326264]  ? zap_class+0x640/0x640
[  283.329978]  ? print_usage_bug+0xc0/0xc0
[  283.334034]  ? do_raw_spin_unlock+0xa7/0x330
[  283.338470]  ? zap_class+0x640/0x640
[  283.342200]  ? print_usage_bug+0xc0/0xc0
[  283.346278]  ? wq_watchdog_touch+0x9c/0xfe
[  283.350511]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.356047]  ? check_preemption_disabled+0x48/0x280
[  283.361089]  ? __lock_is_held+0xb5/0x140
[  283.365180]  __alloc_pages_nodemask+0xad8/0xea0
[  283.369848]  ? zap_class+0x640/0x640
[  283.373567]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  283.378594]  ? find_held_lock+0x36/0x1c0
[  283.382666]  ? ____cache_alloc_node+0x1c7/0x1e0
[  283.387335]  ? lock_downgrade+0x900/0x900
[  283.391504]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.397046]  cache_grow_begin+0xa5/0x8c0
[  283.401104]  ? do_raw_spin_unlock+0xa7/0x330
[  283.405515]  fallback_alloc+0x204/0x2e0
[  283.409495]  ____cache_alloc_node+0x1c7/0x1e0
[  283.414051]  kmem_cache_alloc_node+0xe3/0x730
[  283.418553]  ? ipv6_get_ifaddr+0x42e/0x620
[  283.422797]  __alloc_skb+0x119/0x770
[  283.426507]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.431783]  ? netdev_alloc_frag+0x1f0/0x1f0
[  283.436191]  ? lock_downgrade+0x900/0x900
[  283.440347]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.445923]  ? refcount_sub_and_test_checked+0x203/0x310
[  283.451378]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  283.456826]  ? addrconf_rs_timer+0x690/0x690
[  283.461259]  ndisc_alloc_skb+0x144/0x340
[  283.465357]  ndisc_send_rs+0x331/0x6e0
[  283.469246]  addrconf_rs_timer+0x314/0x690
[  283.473486]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.477736]  call_timer_fn+0x272/0x920
[  283.481623]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.485856]  ? process_timeout+0x40/0x40
[  283.489935]  ? __run_timers+0x7da/0xc70
[  283.493920]  ? _raw_spin_unlock_irq+0x27/0x80
[  283.498424]  ? _raw_spin_unlock_irq+0x27/0x80
[  283.502925]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.507161]  ? lockdep_hardirqs_on+0x296/0x5b0
[  283.511744]  ? trace_hardirqs_on+0xbd/0x310
[  283.516083]  ? kasan_check_read+0x11/0x20
[  283.520231]  ? __run_timers+0x7da/0xc70
[  283.524235]  ? trace_hardirqs_off_caller+0x310/0x310
[  283.529340]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.533591]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.537836]  __run_timers+0x7e5/0xc70
[  283.541648]  ? timer_fixup_init+0x70/0x70
[  283.545792]  ? _raw_spin_unlock_irq+0x27/0x80
[  283.550285]  ? _raw_spin_unlock_irq+0x27/0x80
[  283.554778]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  283.559367]  ? trace_hardirqs_on+0xbd/0x310
[  283.563686]  ? kasan_check_read+0x11/0x20
[  283.567837]  ? finish_task_switch+0x1f4/0x910
[  283.572334]  ? trace_hardirqs_off_caller+0x310/0x310
[  283.577450]  ? compat_start_thread+0x80/0x80
[  283.581875]  ? pvclock_read_flags+0x160/0x160
[  283.586378]  ? __switch_to_asm+0x34/0x70
[  283.590451]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.595989]  ? check_preemption_disabled+0x48/0x280
[  283.601014]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  283.606552]  ? rcu_pm_notify+0xc0/0xc0
[  283.610444]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.615995]  ? check_preemption_disabled+0x48/0x280
[  283.621128]  run_timer_softirq+0x52/0xb0
[  283.625195]  ? rcu_read_lock_sched_held+0x14f/0x180
[  283.630210]  __do_softirq+0x308/0xb7e
[  283.634047]  ? trace_hardirqs_on_caller+0xc0/0x310
[  283.638981]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  283.644099]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  283.649552]  ? trace_hardirqs_on+0x310/0x310
[  283.653970]  ? schedule+0x108/0x460
[  283.657604]  ? trace_hardirqs_off+0xb8/0x310
[  283.662046]  ? smpboot_thread_fn+0x68b/0xa00
[  283.666453]  ? trace_hardirqs_on+0x310/0x310
[  283.670860]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.676402]  ? check_preemption_disabled+0x48/0x280
[  283.681430]  ? takeover_tasklets+0xa90/0xa90
[  283.685843]  run_ksoftirqd+0x5e/0x100
[  283.689642]  smpboot_thread_fn+0x68b/0xa00
[  283.693909]  ? sort_range+0x30/0x30
[  283.697555]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  283.702698]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.708241]  ? __kthread_parkme+0xfb/0x1a0
[  283.712534]  ? sort_range+0x30/0x30
[  283.716179]  kthread+0x35a/0x440
[  283.719553]  ? kthread_stop+0x900/0x900
[  283.723526]  ret_from_fork+0x3a/0x50
[  283.727264] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  283.727269] warn_alloc_show_mem: 1 callbacks suppressed
[  283.727277] Mem-Info:
[  283.734210] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  283.739623] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  283.739623]  active_file:12 inactive_file:14 isolated_file:0
[  283.739623]  unevictable:0 dirty:0 writeback:0 unstable:0
[  283.739623]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  283.739623]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  283.739623]  free:13757 free_pcp:113 free_cma:0
[  283.742017] Call Trace:
[  283.751432] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  283.784446]  <IRQ>
[  283.787014] 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
[  283.814904]  dump_stack+0x244/0x39d
[  283.817035] lowmem_reserve[]: 0 2818 6321 6321
[  283.843138]  ? dump_stack_print_info.cold.1+0x20/0x20
[  283.846763] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  283.851350]  warn_alloc.cold.116+0xb7/0x1bd
[  283.856506] lowmem_reserve[]: 0 0 3503 3503
[  283.884000]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  283.888301] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  283.892616]  ? lock_downgrade+0x900/0x900
[  283.897432] lowmem_reserve[]: 0 0 0 0
[  283.926487]  ? trace_hardirqs_off+0xb8/0x310
[  283.930622] 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
[  283.934422]  ? trace_hardirqs_off+0xb8/0x310
[  283.938802] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  283.952321]  __alloc_pages_slowpath+0x2651/0x2de0
[  283.956713] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  283.972258]  ? warn_alloc+0x120/0x120
[  283.977060] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  283.991711]  ? print_usage_bug+0xc0/0xc0
[  283.995504] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  284.004358]  ? warn_alloc+0x120/0x120
[  284.008410] 4236 total pagecache pages
[  284.016977]  ? warn_alloc+0x120/0x120
[  284.020769] 0 pages in swap cache
[  284.024658]  ? print_usage_bug+0xc0/0xc0
[  284.028438] Swap cache stats: add 0, delete 0, find 0/0
[  284.031881]  ? kvm_clock_read+0x18/0x30
[  284.035931] Free swap  = 0kB
[  284.041291]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  284.045244] Total swap = 0kB
[  284.048256]  ? print_usage_bug+0xc0/0xc0
[  284.053251] 1965979 pages RAM
[  284.056262]  ? __lock_acquire+0x62f/0x4c20
[  284.060313] 0 pages HighMem/MovableOnly
[  284.063455]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.067705] 342854 pages reserved
[  284.067713] 0 pages cma reserved
[  284.071682]  ? should_fail+0x22d/0xd01
[  284.077291] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  284.080650]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.080668]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  284.084059] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  284.087900]  ? __lock_acquire+0x62f/0x4c20
[  284.094373] ksoftirqd/0 cpuset=/ mems_allowed=0
[  284.099648]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  284.129023]  ? __lock_acquire+0x62f/0x4c20
[  284.133278]  ? should_fail+0x22d/0xd01
[  284.137193]  ? rcu_irq_exit+0x1a2/0x390
[  284.141181]  ? mark_held_locks+0x130/0x130
[  284.145439]  ? mark_held_locks+0x130/0x130
[  284.149680]  ? mark_held_locks+0xc7/0x130
[  284.153830]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  284.158844]  ? zap_class+0x640/0x640
[  284.162555]  ? print_usage_bug+0xc0/0xc0
[  284.166625]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.172164]  ? check_preemption_disabled+0x48/0x280
[  284.177206]  ? __lock_is_held+0xb5/0x140
[  284.181276]  __alloc_pages_nodemask+0xad8/0xea0
[  284.185955]  ? zap_class+0x640/0x640
[  284.189678]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  284.194722]  ? find_held_lock+0x36/0x1c0
[  284.198797]  ? ____cache_alloc_node+0x1c7/0x1e0
[  284.203474]  ? lock_downgrade+0x900/0x900
[  284.207639]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.213182]  cache_grow_begin+0xa5/0x8c0
[  284.217245]  ? do_raw_spin_unlock+0xa7/0x330
[  284.221673]  fallback_alloc+0x204/0x2e0
[  284.225654]  ____cache_alloc_node+0x1c7/0x1e0
[  284.230161]  kmem_cache_alloc_node+0xe3/0x730
[  284.234659]  ? ipv6_get_ifaddr+0x42e/0x620
[  284.238927]  __alloc_skb+0x119/0x770
[  284.242642]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.247945]  ? netdev_alloc_frag+0x1f0/0x1f0
[  284.252355]  ? lock_downgrade+0x900/0x900
[  284.256540]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.262080]  ? refcount_sub_and_test_checked+0x203/0x310
[  284.267539]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  284.273006]  ? addrconf_rs_timer+0x690/0x690
[  284.277431]  ndisc_alloc_skb+0x144/0x340
[  284.281517]  ndisc_send_rs+0x331/0x6e0
[  284.285416]  addrconf_rs_timer+0x314/0x690
[  284.289680]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.293941]  call_timer_fn+0x272/0x920
[  284.297833]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.302069]  ? process_timeout+0x40/0x40
[  284.306146]  ? mark_held_locks+0xc7/0x130
[  284.310297]  ? _raw_spin_unlock_irq+0x27/0x80
[  284.314806]  ? _raw_spin_unlock_irq+0x27/0x80
[  284.319293]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.323557]  ? lockdep_hardirqs_on+0x296/0x5b0
[  284.328148]  ? trace_hardirqs_on+0xbd/0x310
[  284.332486]  ? kasan_check_read+0x11/0x20
[  284.336636]  ? __run_timers+0x7da/0xc70
[  284.340628]  ? trace_hardirqs_off_caller+0x310/0x310
[  284.345736]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.349978]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.354214]  __run_timers+0x7e5/0xc70
[  284.358027]  ? timer_fixup_init+0x70/0x70
[  284.362180]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  284.367203]  ? zap_class+0x640/0x640
[  284.370930]  ? print_usage_bug+0xc0/0xc0
[  284.375008]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  284.380225]  ? find_held_lock+0x36/0x1c0
[  284.384290]  ? zap_class+0x640/0x640
[  284.388011]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.393550]  ? check_preemption_disabled+0x48/0x280
[  284.398575]  ? __lock_is_held+0xb5/0x140
[  284.402638]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.408174]  ? check_preemption_disabled+0x48/0x280
[  284.413232]  run_timer_softirq+0x52/0xb0
[  284.417326]  ? rcu_read_lock_sched_held+0x14f/0x180
[  284.422344]  __do_softirq+0x308/0xb7e
[  284.426212]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  284.430868]  ? lock_downgrade+0x900/0x900
[  284.435023]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  284.440135]  ? pvclock_read_flags+0x160/0x160
[  284.444709]  ? lapic_next_event+0x5a/0x90
[  284.448865]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.454419]  ? kvm_clock_read+0x18/0x30
[  284.458426]  ? kvm_sched_clock_read+0x9/0x20
[  284.462839]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.468382]  ? check_preemption_disabled+0x48/0x280
[  284.473418]  irq_exit+0x17f/0x1c0
[  284.476911]  smp_apic_timer_interrupt+0x1cb/0x760
[  284.481759]  ? smp_call_function_single_interrupt+0x159/0x650
[  284.487681]  ? smp_call_function_single_interrupt+0x650/0x650
[  284.493565]  ? interrupt_entry+0xb5/0xc0
[  284.497628]  ? trace_hardirqs_off_caller+0xbb/0x310
[  284.502676]  ? trace_hardirqs_off_caller+0xbb/0x310
[  284.507718]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.512574]  ? trace_hardirqs_on_caller+0x310/0x310
[  284.517597]  ? trace_hardirqs_on_caller+0x310/0x310
[  284.522617]  ? task_prio+0x50/0x50
[  284.526188]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.531729]  ? check_preemption_disabled+0x48/0x280
[  284.536756]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.541620]  apic_timer_interrupt+0xf/0x20
[  284.545853]  </IRQ>
[  284.548104] RIP: 0010:dump_stack+0x358/0x39d
[  284.552516] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  284.571874] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  284.579590] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  284.586861] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  284.594136] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  284.601408] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  284.608711] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  284.616011]  ? dump_stack+0x34f/0x39d
[  284.619827]  ? dump_stack_print_info.cold.1+0x20/0x20
[  284.625021]  ? mark_held_locks+0x130/0x130
[  284.629256]  ? mark_held_locks+0x130/0x130
[  284.633502]  dump_header+0x27b/0xf72
[  284.637227]  ? pagefault_out_of_memory+0x197/0x197
[  284.642169]  ? __lock_acquire+0x62f/0x4c20
[  284.646414]  ? percpu_ref_get_many+0x240/0x240
[  284.651030]  ? print_usage_bug+0xc0/0xc0
[  284.655100]  ? zap_class+0x640/0x640
[  284.658829]  ? print_usage_bug+0xc0/0xc0
[  284.662907]  ? print_usage_bug+0xc0/0xc0
[  284.667007]  ? zap_class+0x640/0x640
[  284.670725]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.676278]  ? find_held_lock+0x36/0x1c0
[  284.680351]  ? mark_held_locks+0xc7/0x130
[  284.684500]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  284.689604]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  284.694709]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  284.699293]  ? trace_hardirqs_on+0xbd/0x310
[  284.703619]  ? kasan_check_read+0x11/0x20
[  284.707783]  ? ___ratelimit+0x3b4/0x672
[  284.711763]  ? trace_hardirqs_off_caller+0x310/0x310
[  284.716869]  ? trace_hardirqs_on+0x310/0x310
[  284.721288]  ? lock_downgrade+0x900/0x900
[  284.725442]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  284.730543]  ? ___ratelimit+0x3b9/0x672
[  284.734519]  ? idr_get_free+0xf70/0xf70
[  284.738496]  ? find_held_lock+0x36/0x1c0
[  284.742568]  oom_kill_process.cold.27+0x10/0x903
[  284.747324]  ? zap_class+0x640/0x640
[  284.751046]  ? check_preemption_disabled+0x48/0x280
[  284.756067]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  284.760998]  ? kasan_check_read+0x11/0x20
[  284.765146]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.770428]  ? oom_evaluate_task+0x540/0x540
[  284.774841]  ? find_held_lock+0x36/0x1c0
[  284.778918]  ? out_of_memory+0x974/0x1430
[  284.783074]  ? lock_downgrade+0x900/0x900
[  284.787228]  ? check_preemption_disabled+0x48/0x280
[  284.792256]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  284.797183]  ? kasan_check_read+0x11/0x20
[  284.801341]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.806615]  ? rcu_softirq_qs+0x20/0x20
[  284.810592]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.816129]  ? oom_evaluate_task+0x302/0x540
[  284.820540]  out_of_memory+0xa84/0x1430
[  284.824523]  ? oom_killer_disable+0x3a0/0x3a0
[  284.829022]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  284.833957]  ? __ww_mutex_check_waiters+0x160/0x160
[  284.838986]  __alloc_pages_slowpath+0x232c/0x2de0
[  284.843872]  ? warn_alloc+0x120/0x120
[  284.847692]  ? mark_held_locks+0x130/0x130
[  284.851947]  ? find_get_entry+0xaae/0x1120
[  284.856192]  ? filemap_map_pages+0x1a20/0x1a20
[  284.860781]  ? zap_class+0x640/0x640
[  284.864503]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.870043]  ? check_preemption_disabled+0x48/0x280
[  284.875063]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.880600]  ? should_fail+0x22d/0xd01
[  284.884492]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  284.889599]  ? zap_class+0x640/0x640
[  284.893351]  ? __lock_is_held+0xb5/0x140
[  284.897427]  ? mark_held_locks+0x130/0x130
[  284.901674]  ? lock_release+0xa00/0xa00
[  284.905647]  ? perf_trace_sched_process_exec+0x860/0x860
[  284.911098]  ? xa_load+0x2ba/0x460
[  284.914654]  ? lock_downgrade+0x900/0x900
[  284.918813]  ? __might_sleep+0x95/0x190
[  284.922795]  __alloc_pages_nodemask+0xad8/0xea0
[  284.927475]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  284.932494]  ? __page_cache_alloc+0x191/0x5c0
[  284.936992]  ? xa_load+0x2e1/0x460
[  284.940538]  ? xa_clear_mark+0x40/0x40
[  284.944435]  ? zap_class+0x640/0x640
[  284.948158]  ? zap_class+0x640/0x640
[  284.951874]  ? zap_class+0x640/0x640
[  284.955616]  ? __do_page_cache_readahead+0x663/0x810
[  284.960746]  ? find_held_lock+0x36/0x1c0
[  284.964819]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  284.970364]  alloc_pages_current+0x173/0x350
[  284.974788]  __page_cache_alloc+0x38c/0x5c0
[  284.979111]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  284.984045]  ? kasan_check_read+0x11/0x20
[  284.988192]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.993477]  ? generic_perform_write+0x6a0/0x6a0
[  284.998239]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.003783]  ? check_preemption_disabled+0x48/0x280
[  285.008812]  filemap_fault+0x1595/0x25f0
[  285.012896]  ? __lock_page_or_retry+0xa00/0xa00
[  285.017588]  ? mark_held_locks+0x130/0x130
[  285.021835]  ? filemap_map_pages+0xd6b/0x1a20
[  285.026347]  ? lock_downgrade+0x900/0x900
[  285.030510]  ? check_preemption_disabled+0x48/0x280
[  285.035528]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  285.040458]  ? kasan_check_read+0x11/0x20
[  285.044605]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.049898]  ? rcu_softirq_qs+0x20/0x20
[  285.053898]  ? filemap_map_pages+0xd92/0x1a20
[  285.058413]  ? find_get_entries_tag+0x1400/0x1400
[  285.063263]  ? debug_object_destroy+0x2b0/0x2b0
[  285.067936]  ? lock_pi_update_atomic+0x150/0x150
[  285.072695]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.078261]  ? lock_acquire+0x1ed/0x520
[  285.082237]  ? ext4_filemap_fault+0x7a/0xad
[  285.086579]  ? lock_release+0xa00/0xa00
[  285.090556]  ? perf_trace_sched_process_exec+0x860/0x860
[  285.096022]  ? print_usage_bug+0xc0/0xc0
[  285.100099]  ? print_usage_bug+0xc0/0xc0
[  285.104188]  ? down_read+0x8d/0x120
[  285.107830]  ? ext4_filemap_fault+0x7a/0xad
[  285.112152]  ? __down_interruptible+0x700/0x700
[  285.116831]  ext4_filemap_fault+0x82/0xad
[  285.120988]  __do_fault+0x100/0x6b0
[  285.124613]  ? find_held_lock+0x36/0x1c0
[  285.128675]  ? pmd_devmap_trans_unstable+0x220/0x220
[  285.133777]  ? mark_held_locks+0x130/0x130
[  285.138016]  ? mark_held_locks+0x130/0x130
[  285.142248]  ? _raw_spin_unlock_irq+0x27/0x80
[  285.146740]  ? _raw_spin_unlock_irq+0x27/0x80
[  285.151243]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  285.155846]  ? kasan_check_read+0x11/0x20
[  285.159996]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.165539]  __handle_mm_fault+0x3ea0/0x5be0
[  285.169959]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  285.174824]  ? finish_task_switch+0x1f4/0x910
[  285.179333]  ? finish_task_switch+0x1b4/0x910
[  285.183831]  ? __switch_to_asm+0x34/0x70
[  285.187902]  ? preempt_notifier_register+0x200/0x200
[  285.193004]  ? __switch_to_asm+0x34/0x70
[  285.197063]  ? __switch_to_asm+0x34/0x70
[  285.201140]  ? zap_class+0x640/0x640
[  285.204908]  ? zap_class+0x640/0x640
[  285.208621]  ? __x64_sys_futex+0x53e/0x6a0
[  285.212863]  ? find_held_lock+0x36/0x1c0
[  285.216942]  ? handle_mm_fault+0x42a/0xc70
[  285.221180]  ? lock_downgrade+0x900/0x900
[  285.225325]  ? check_preemption_disabled+0x48/0x280
[  285.230411]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  285.235358]  ? kasan_check_read+0x11/0x20
[  285.239510]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.244790]  ? rcu_softirq_qs+0x20/0x20
[  285.248771]  ? trace_hardirqs_off_caller+0x310/0x310
[  285.253876]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.259425]  ? check_preemption_disabled+0x48/0x280
[  285.264447]  handle_mm_fault+0x54f/0xc70
[  285.268512]  ? __handle_mm_fault+0x5be0/0x5be0
[  285.273101]  ? find_vma+0x34/0x190
[  285.276651]  __do_page_fault+0x5e8/0xe60
[  285.280712]  ? trace_hardirqs_off+0xb8/0x310
[  285.285146]  do_page_fault+0xf2/0x7e0
[  285.288949]  ? vmalloc_sync_all+0x30/0x30
[  285.293098]  ? error_entry+0x70/0xd0
[  285.296815]  ? trace_hardirqs_off_caller+0xbb/0x310
[  285.301842]  ? trace_hardirqs_on_caller+0xc0/0x310
[  285.306772]  ? syscall_return_slowpath+0x5e0/0x5e0
[  285.311698]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.316543]  ? trace_hardirqs_on_caller+0x310/0x310
[  285.321559]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  285.327041]  ? prepare_exit_to_usermode+0x291/0x3b0
[  285.332060]  ? page_fault+0x8/0x30
[  285.335606]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.340453]  ? page_fault+0x8/0x30
[  285.343995]  page_fault+0x1e/0x30
[  285.347475] RIP: 0033:0x40f9c0
[  285.350681] Code: Bad RIP value.
[  285.354043] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  285.359429] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  285.366726] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  285.374013] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  285.381278] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  285.388562] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  285.395851] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  285.395926] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  285.402618] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  285.402627] Call Trace:
[  285.409203] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  285.418456]  dump_stack+0x244/0x39d
[  285.421016] syz-fuzzer cpuset=/ mems_allowed=0
[  285.431236]  ? dump_stack_print_info.cold.1+0x20/0x20
[  285.444637]  warn_alloc.cold.116+0xb7/0x1bd
[  285.448966]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  285.453816]  ? lock_downgrade+0x900/0x900
[  285.457989]  ? trace_hardirqs_off+0xb8/0x310
[  285.462408]  ? trace_hardirqs_off+0xb8/0x310
[  285.466826]  __alloc_pages_slowpath+0x2651/0x2de0
[  285.471697]  ? warn_alloc+0x120/0x120
[  285.475502]  ? print_usage_bug+0xc0/0xc0
[  285.479752]  ? warn_alloc+0x120/0x120
[  285.483556]  ? warn_alloc+0x120/0x120
[  285.487372]  ? print_usage_bug+0xc0/0xc0
[  285.491437]  ? print_usage_bug+0xc0/0xc0
[  285.495503]  ? __lock_acquire+0x62f/0x4c20
[  285.499744]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.505298]  ? should_fail+0x22d/0xd01
[  285.509197]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  285.514301]  ? __lock_acquire+0x62f/0x4c20
[  285.518538]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  285.523657]  ? __lock_acquire+0x62f/0x4c20
[  285.527896]  ? should_fail+0x22d/0xd01
[  285.531803]  ? find_held_lock+0x36/0x1c0
[  285.535872]  ? mark_held_locks+0x130/0x130
[  285.540123]  ? mark_held_locks+0x130/0x130
[  285.544369]  ? zap_class+0x640/0x640
[  285.548138]  ? zap_class+0x640/0x640
[  285.551877]  ? print_usage_bug+0xc0/0xc0
[  285.556000]  ? do_raw_spin_unlock+0xa7/0x330
[  285.560408]  ? zap_class+0x640/0x640
[  285.564122]  ? print_usage_bug+0xc0/0xc0
[  285.568192]  ? wq_watchdog_touch+0x9c/0xfe
[  285.572434]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.577971]  ? check_preemption_disabled+0x48/0x280
[  285.582995]  ? __lock_is_held+0xb5/0x140
[  285.587064]  __alloc_pages_nodemask+0xad8/0xea0
[  285.591751]  ? zap_class+0x640/0x640
[  285.595470]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  285.600499]  ? find_held_lock+0x36/0x1c0
[  285.604570]  ? ____cache_alloc_node+0x1c7/0x1e0
[  285.609254]  ? lock_downgrade+0x900/0x900
[  285.613412]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.619131]  cache_grow_begin+0xa5/0x8c0
[  285.623195]  ? do_raw_spin_unlock+0xa7/0x330
[  285.627630]  fallback_alloc+0x204/0x2e0
[  285.631612]  ____cache_alloc_node+0x1c7/0x1e0
[  285.636143]  kmem_cache_alloc_node+0xe3/0x730
[  285.640644]  ? ipv6_get_ifaddr+0x42e/0x620
[  285.644914]  __alloc_skb+0x119/0x770
[  285.648657]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.653971]  ? netdev_alloc_frag+0x1f0/0x1f0
[  285.658378]  ? lock_downgrade+0x900/0x900
[  285.662536]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.668074]  ? refcount_sub_and_test_checked+0x203/0x310
[  285.673529]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  285.678979]  ? addrconf_rs_timer+0x690/0x690
[  285.683406]  ndisc_alloc_skb+0x144/0x340
[  285.687487]  ndisc_send_rs+0x331/0x6e0
[  285.691384]  addrconf_rs_timer+0x314/0x690
[  285.695625]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.699870]  call_timer_fn+0x272/0x920
[  285.703765]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.707999]  ? process_timeout+0x40/0x40
[  285.712072]  ? __run_timers+0x7da/0xc70
[  285.716054]  ? _raw_spin_unlock_irq+0x27/0x80
[  285.720549]  ? _raw_spin_unlock_irq+0x27/0x80
[  285.725043]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.729280]  ? lockdep_hardirqs_on+0x296/0x5b0
[  285.733865]  ? trace_hardirqs_on+0xbd/0x310
[  285.738199]  ? kasan_check_read+0x11/0x20
[  285.742363]  ? __run_timers+0x7da/0xc70
[  285.746337]  ? trace_hardirqs_off_caller+0x310/0x310
[  285.751443]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.755769]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.760001]  __run_timers+0x7e5/0xc70
[  285.763811]  ? timer_fixup_init+0x70/0x70
[  285.767962]  ? _raw_spin_unlock_irq+0x27/0x80
[  285.772455]  ? _raw_spin_unlock_irq+0x27/0x80
[  285.776949]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  285.781541]  ? trace_hardirqs_on+0xbd/0x310
[  285.785861]  ? kasan_check_read+0x11/0x20
[  285.790026]  ? finish_task_switch+0x1f4/0x910
[  285.794521]  ? trace_hardirqs_off_caller+0x310/0x310
[  285.799622]  ? compat_start_thread+0x80/0x80
[  285.804049]  ? pvclock_read_flags+0x160/0x160
[  285.808558]  ? __switch_to_asm+0x34/0x70
[  285.812618]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.818170]  ? check_preemption_disabled+0x48/0x280
[  285.823195]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  285.828737]  ? rcu_pm_notify+0xc0/0xc0
[  285.832624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.838164]  ? check_preemption_disabled+0x48/0x280
[  285.843202]  run_timer_softirq+0x52/0xb0
[  285.847266]  ? rcu_read_lock_sched_held+0x14f/0x180
[  285.852282]  __do_softirq+0x308/0xb7e
[  285.856132]  ? trace_hardirqs_on_caller+0xc0/0x310
[  285.861083]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  285.866184]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  285.871631]  ? trace_hardirqs_on+0x310/0x310
[  285.876045]  ? schedule+0x108/0x460
[  285.879680]  ? trace_hardirqs_off+0xb8/0x310
[  285.884091]  ? smpboot_thread_fn+0x68b/0xa00
[  285.888509]  ? trace_hardirqs_on+0x310/0x310
[  285.892925]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.898463]  ? check_preemption_disabled+0x48/0x280
[  285.903479]  ? takeover_tasklets+0xa90/0xa90
[  285.907902]  run_ksoftirqd+0x5e/0x100
[  285.911721]  smpboot_thread_fn+0x68b/0xa00
[  285.915956]  ? sort_range+0x30/0x30
[  285.919585]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  285.924689]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.930228]  ? __kthread_parkme+0xfb/0x1a0
[  285.934484]  ? sort_range+0x30/0x30
[  285.938200]  kthread+0x35a/0x440
[  285.941568]  ? kthread_stop+0x900/0x900
[  285.945545]  ret_from_fork+0x3a/0x50
[  285.949387] warn_alloc_show_mem: 1 callbacks suppressed
[  285.949405] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  285.949407] Mem-Info:
[  285.949439] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  285.949439]  active_file:12 inactive_file:14 isolated_file:0
[  285.949439]  unevictable:0 dirty:0 writeback:0 unstable:0
[  285.949439]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  285.949439]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  285.949439]  free:13757 free_pcp:113 free_cma:0
[  285.954774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  285.961706] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  285.964108] Call Trace:
[  285.997148] 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
[  286.006521]  <IRQ>
[  286.034363] lowmem_reserve[]: 0 2818 6321 6321
[  286.036985]  dump_stack+0x244/0x39d
[  286.063070] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  286.065216]  ? dump_stack_print_info.cold.1+0x20/0x20
[  286.069769] lowmem_reserve[]: 0 0 3503 3503
[  286.073405]  warn_alloc.cold.116+0xb7/0x1bd
[  286.100866] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  286.106059]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  286.110353] lowmem_reserve[]: 0 0 0 0
[  286.114674]  ? lock_downgrade+0x900/0x900
[  286.143713] 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
[  286.148586]  ? trace_hardirqs_off+0xb8/0x310
[  286.152371] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  286.156513]  ? trace_hardirqs_off+0xb8/0x310
[  286.170011] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  286.174420]  __alloc_pages_slowpath+0x2651/0x2de0
[  286.189937] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  286.194349]  ? warn_alloc+0x120/0x120
[  286.208876] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  286.213729]  ? print_usage_bug+0xc0/0xc0
[  286.222540] 4236 total pagecache pages
[  286.226337]  ? warn_alloc+0x120/0x120
[  286.234929] 0 pages in swap cache
[  286.238979]  ? warn_alloc+0x120/0x120
[  286.242845] Swap cache stats: add 0, delete 0, find 0/0
[  286.246633]  ? print_usage_bug+0xc0/0xc0
[  286.250077] Free swap  = 0kB
[  286.253871]  ? kvm_clock_read+0x18/0x30
[  286.259236] Total swap = 0kB
[  286.263306]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  286.266311] 1965979 pages RAM
[  286.270296]  ? print_usage_bug+0xc0/0xc0
[  286.273288] 0 pages HighMem/MovableOnly
[  286.278323]  ? __lock_acquire+0x62f/0x4c20
[  286.281409] 342854 pages reserved
[  286.285462]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.289418] 0 pages cma reserved
[  286.293648]  ? should_fail+0x22d/0xd01
[  286.297145] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  286.302596]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.302614]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  286.306043] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  286.309840]  ? __lock_acquire+0x62f/0x4c20
[  286.316322] ksoftirqd/0 cpuset=/ mems_allowed=0
[  286.321606]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  286.350987]  ? __lock_acquire+0x62f/0x4c20
[  286.355219]  ? should_fail+0x22d/0xd01
[  286.359106]  ? rcu_irq_exit+0x1a2/0x390
[  286.363095]  ? mark_held_locks+0x130/0x130
[  286.367335]  ? mark_held_locks+0x130/0x130
[  286.371604]  ? mark_held_locks+0xc7/0x130
[  286.375752]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  286.380780]  ? zap_class+0x640/0x640
[  286.384493]  ? print_usage_bug+0xc0/0xc0
[  286.388559]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.394094]  ? check_preemption_disabled+0x48/0x280
[  286.399122]  ? __lock_is_held+0xb5/0x140
[  286.403193]  __alloc_pages_nodemask+0xad8/0xea0
[  286.407860]  ? zap_class+0x640/0x640
[  286.411584]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  286.416611]  ? find_held_lock+0x36/0x1c0
[  286.420685]  ? ____cache_alloc_node+0x1c7/0x1e0
[  286.425384]  ? lock_downgrade+0x900/0x900
[  286.429545]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.435296]  cache_grow_begin+0xa5/0x8c0
[  286.439357]  ? do_raw_spin_unlock+0xa7/0x330
[  286.443775]  fallback_alloc+0x204/0x2e0
[  286.447755]  ____cache_alloc_node+0x1c7/0x1e0
[  286.452261]  kmem_cache_alloc_node+0xe3/0x730
[  286.456762]  ? ipv6_get_ifaddr+0x42e/0x620
[  286.461040]  __alloc_skb+0x119/0x770
[  286.464756]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.470038]  ? netdev_alloc_frag+0x1f0/0x1f0
[  286.474451]  ? lock_downgrade+0x900/0x900
[  286.478622]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.484158]  ? refcount_sub_and_test_checked+0x203/0x310
[  286.489629]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  286.495099]  ? addrconf_rs_timer+0x690/0x690
[  286.499525]  ndisc_alloc_skb+0x144/0x340
[  286.503594]  ndisc_send_rs+0x331/0x6e0
[  286.507504]  addrconf_rs_timer+0x314/0x690
[  286.511748]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.515995]  call_timer_fn+0x272/0x920
[  286.519893]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.524132]  ? process_timeout+0x40/0x40
[  286.528217]  ? mark_held_locks+0xc7/0x130
[  286.532380]  ? _raw_spin_unlock_irq+0x27/0x80
[  286.536900]  ? _raw_spin_unlock_irq+0x27/0x80
[  286.541393]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.545638]  ? lockdep_hardirqs_on+0x296/0x5b0
[  286.550237]  ? trace_hardirqs_on+0xbd/0x310
[  286.554560]  ? kasan_check_read+0x11/0x20
[  286.558719]  ? __run_timers+0x7da/0xc70
[  286.562694]  ? trace_hardirqs_off_caller+0x310/0x310
[  286.568319]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.572566]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.576802]  __run_timers+0x7e5/0xc70
[  286.580612]  ? timer_fixup_init+0x70/0x70
[  286.584761]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  286.589778]  ? zap_class+0x640/0x640
[  286.593498]  ? print_usage_bug+0xc0/0xc0
[  286.597561]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  286.602760]  ? find_held_lock+0x36/0x1c0
[  286.606847]  ? zap_class+0x640/0x640
[  286.610565]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.616108]  ? check_preemption_disabled+0x48/0x280
[  286.621133]  ? __lock_is_held+0xb5/0x140
[  286.625196]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.630745]  ? check_preemption_disabled+0x48/0x280
[  286.635777]  run_timer_softirq+0x52/0xb0
[  286.639842]  ? rcu_read_lock_sched_held+0x14f/0x180
[  286.644861]  __do_softirq+0x308/0xb7e
[  286.648673]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  286.653223]  ? lock_downgrade+0x900/0x900
[  286.657373]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  286.662491]  ? pvclock_read_flags+0x160/0x160
[  286.666992]  ? lapic_next_event+0x5a/0x90
[  286.671145]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.676695]  ? kvm_clock_read+0x18/0x30
[  286.680670]  ? kvm_sched_clock_read+0x9/0x20
[  286.685079]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.690618]  ? check_preemption_disabled+0x48/0x280
[  286.695647]  irq_exit+0x17f/0x1c0
[  286.699132]  smp_apic_timer_interrupt+0x1cb/0x760
[  286.703975]  ? smp_call_function_single_interrupt+0x159/0x650
[  286.709864]  ? smp_call_function_single_interrupt+0x650/0x650
[  286.715790]  ? interrupt_entry+0xb5/0xc0
[  286.719860]  ? trace_hardirqs_off_caller+0xbb/0x310
[  286.724893]  ? trace_hardirqs_off_caller+0xbb/0x310
[  286.729937]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  286.734796]  ? trace_hardirqs_on_caller+0x310/0x310
[  286.739814]  ? trace_hardirqs_on_caller+0x310/0x310
[  286.744833]  ? task_prio+0x50/0x50
[  286.748386]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.753927]  ? check_preemption_disabled+0x48/0x280
[  286.758951]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  286.763819]  apic_timer_interrupt+0xf/0x20
[  286.768051]  </IRQ>
[  286.770296] RIP: 0010:dump_stack+0x358/0x39d
[  286.774720] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  286.793638] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  286.801345] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  286.808641] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  286.815913] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  286.823179] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  286.830464] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  286.837751]  ? dump_stack+0x34f/0x39d
[  286.841563]  ? dump_stack_print_info.cold.1+0x20/0x20
[  286.846786]  ? mark_held_locks+0x130/0x130
[  286.851022]  ? mark_held_locks+0x130/0x130
[  286.855267]  dump_header+0x27b/0xf72
[  286.858996]  ? pagefault_out_of_memory+0x197/0x197
[  286.863934]  ? __lock_acquire+0x62f/0x4c20
[  286.868183]  ? percpu_ref_get_many+0x240/0x240
[  286.872768]  ? print_usage_bug+0xc0/0xc0
[  286.876842]  ? zap_class+0x640/0x640
[  286.880575]  ? print_usage_bug+0xc0/0xc0
[  286.884639]  ? print_usage_bug+0xc0/0xc0
[  286.888705]  ? zap_class+0x640/0x640
[  286.892448]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.898001]  ? find_held_lock+0x36/0x1c0
[  286.902091]  ? mark_held_locks+0xc7/0x130
[  286.906254]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  286.911356]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  286.916477]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  286.921064]  ? trace_hardirqs_on+0xbd/0x310
[  286.925387]  ? kasan_check_read+0x11/0x20
[  286.929556]  ? ___ratelimit+0x3b4/0x672
[  286.933537]  ? trace_hardirqs_off_caller+0x310/0x310
[  286.938643]  ? trace_hardirqs_on+0x310/0x310
[  286.943059]  ? lock_downgrade+0x900/0x900
[  286.947218]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  286.952342]  ? ___ratelimit+0x3b9/0x672
[  286.956320]  ? idr_get_free+0xf70/0xf70
[  286.960298]  ? find_held_lock+0x36/0x1c0
[  286.964407]  oom_kill_process.cold.27+0x10/0x903
[  286.969164]  ? zap_class+0x640/0x640
[  286.972880]  ? check_preemption_disabled+0x48/0x280
[  286.977930]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  286.982863]  ? kasan_check_read+0x11/0x20
[  286.987018]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.992296]  ? oom_evaluate_task+0x540/0x540
[  286.996709]  ? find_held_lock+0x36/0x1c0
[  287.000784]  ? out_of_memory+0x974/0x1430
[  287.004975]  ? lock_downgrade+0x900/0x900
[  287.009129]  ? check_preemption_disabled+0x48/0x280
[  287.014148]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  287.019080]  ? kasan_check_read+0x11/0x20
[  287.023250]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.028549]  ? rcu_softirq_qs+0x20/0x20
[  287.032527]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.038064]  ? oom_evaluate_task+0x302/0x540
[  287.042477]  out_of_memory+0xa84/0x1430
[  287.046461]  ? oom_killer_disable+0x3a0/0x3a0
[  287.050959]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  287.055901]  ? __ww_mutex_check_waiters+0x160/0x160
[  287.060951]  __alloc_pages_slowpath+0x232c/0x2de0
[  287.065825]  ? warn_alloc+0x120/0x120
[  287.069631]  ? mark_held_locks+0x130/0x130
[  287.073871]  ? find_get_entry+0xaae/0x1120
[  287.078216]  ? filemap_map_pages+0x1a20/0x1a20
[  287.082812]  ? zap_class+0x640/0x640
[  287.086536]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.092078]  ? check_preemption_disabled+0x48/0x280
[  287.097095]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.102650]  ? should_fail+0x22d/0xd01
[  287.106570]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  287.111676]  ? zap_class+0x640/0x640
[  287.115424]  ? __lock_is_held+0xb5/0x140
[  287.119494]  ? mark_held_locks+0x130/0x130
[  287.123748]  ? lock_release+0xa00/0xa00
[  287.127726]  ? perf_trace_sched_process_exec+0x860/0x860
[  287.133177]  ? xa_load+0x2ba/0x460
[  287.136749]  ? lock_downgrade+0x900/0x900
[  287.140915]  ? __might_sleep+0x95/0x190
[  287.144906]  __alloc_pages_nodemask+0xad8/0xea0
[  287.149583]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  287.154604]  ? __page_cache_alloc+0x191/0x5c0
[  287.159098]  ? xa_load+0x2e1/0x460
[  287.162656]  ? xa_clear_mark+0x40/0x40
[  287.166546]  ? zap_class+0x640/0x640
[  287.170270]  ? zap_class+0x640/0x640
[  287.173986]  ? zap_class+0x640/0x640
[  287.177704]  ? __do_page_cache_readahead+0x663/0x810
[  287.182835]  ? find_held_lock+0x36/0x1c0
[  287.186906]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  287.192464]  alloc_pages_current+0x173/0x350
[  287.196892]  __page_cache_alloc+0x38c/0x5c0
[  287.201228]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  287.206157]  ? kasan_check_read+0x11/0x20
[  287.210324]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.215622]  ? generic_perform_write+0x6a0/0x6a0
[  287.220379]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.225930]  ? check_preemption_disabled+0x48/0x280
[  287.230956]  filemap_fault+0x1595/0x25f0
[  287.235035]  ? __lock_page_or_retry+0xa00/0xa00
[  287.239720]  ? mark_held_locks+0x130/0x130
[  287.243980]  ? filemap_map_pages+0xd6b/0x1a20
[  287.248482]  ? lock_downgrade+0x900/0x900
[  287.252629]  ? check_preemption_disabled+0x48/0x280
[  287.257646]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  287.262590]  ? kasan_check_read+0x11/0x20
[  287.266753]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.272045]  ? rcu_softirq_qs+0x20/0x20
[  287.276044]  ? filemap_map_pages+0xd92/0x1a20
[  287.280566]  ? find_get_entries_tag+0x1400/0x1400
[  287.285416]  ? debug_object_destroy+0x2b0/0x2b0
[  287.290087]  ? lock_pi_update_atomic+0x150/0x150
[  287.294844]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.300394]  ? lock_acquire+0x1ed/0x520
[  287.304378]  ? ext4_filemap_fault+0x7a/0xad
[  287.308710]  ? lock_release+0xa00/0xa00
[  287.312691]  ? perf_trace_sched_process_exec+0x860/0x860
[  287.318150]  ? print_usage_bug+0xc0/0xc0
[  287.322209]  ? print_usage_bug+0xc0/0xc0
[  287.326283]  ? down_read+0x8d/0x120
[  287.329915]  ? ext4_filemap_fault+0x7a/0xad
[  287.334238]  ? __down_interruptible+0x700/0x700
[  287.338936]  ext4_filemap_fault+0x82/0xad
[  287.343088]  __do_fault+0x100/0x6b0
[  287.346716]  ? find_held_lock+0x36/0x1c0
[  287.350778]  ? pmd_devmap_trans_unstable+0x220/0x220
[  287.355895]  ? mark_held_locks+0x130/0x130
[  287.360136]  ? mark_held_locks+0x130/0x130
[  287.364372]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.368869]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.373373]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  287.377969]  ? kasan_check_read+0x11/0x20
[  287.382122]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.387703]  __handle_mm_fault+0x3ea0/0x5be0
[  287.392124]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  287.396969]  ? finish_task_switch+0x1f4/0x910
[  287.401463]  ? finish_task_switch+0x1b4/0x910
[  287.405958]  ? __switch_to_asm+0x34/0x70
[  287.410024]  ? preempt_notifier_register+0x200/0x200
[  287.415123]  ? __switch_to_asm+0x34/0x70
[  287.419197]  ? __switch_to_asm+0x34/0x70
[  287.423273]  ? zap_class+0x640/0x640
[  287.427002]  ? zap_class+0x640/0x640
[  287.430716]  ? __x64_sys_futex+0x53e/0x6a0
[  287.434971]  ? find_held_lock+0x36/0x1c0
[  287.439058]  ? handle_mm_fault+0x42a/0xc70
[  287.443297]  ? lock_downgrade+0x900/0x900
[  287.447451]  ? check_preemption_disabled+0x48/0x280
[  287.452473]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  287.457409]  ? kasan_check_read+0x11/0x20
[  287.461562]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.466851]  ? rcu_softirq_qs+0x20/0x20
[  287.470826]  ? trace_hardirqs_off_caller+0x310/0x310
[  287.475952]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.481492]  ? check_preemption_disabled+0x48/0x280
[  287.486519]  handle_mm_fault+0x54f/0xc70
[  287.490590]  ? __handle_mm_fault+0x5be0/0x5be0
[  287.495176]  ? find_vma+0x34/0x190
[  287.498724]  __do_page_fault+0x5e8/0xe60
[  287.502805]  ? trace_hardirqs_off+0xb8/0x310
[  287.507227]  do_page_fault+0xf2/0x7e0
[  287.511032]  ? vmalloc_sync_all+0x30/0x30
[  287.515184]  ? error_entry+0x70/0xd0
[  287.518907]  ? trace_hardirqs_off_caller+0xbb/0x310
[  287.523929]  ? trace_hardirqs_on_caller+0xc0/0x310
[  287.528878]  ? syscall_return_slowpath+0x5e0/0x5e0
[  287.533817]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.538660]  ? trace_hardirqs_on_caller+0x310/0x310
[  287.543677]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  287.549133]  ? prepare_exit_to_usermode+0x291/0x3b0
[  287.554151]  ? page_fault+0x8/0x30
[  287.557696]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.562545]  ? page_fault+0x8/0x30
[  287.566086]  page_fault+0x1e/0x30
[  287.569544] RIP: 0033:0x40f9c0
[  287.572748] Code: Bad RIP value.
[  287.576110] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  287.581472] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  287.588739] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  287.596008] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  287.603278] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  287.610546] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  287.617844] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  287.617920] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  287.624612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  287.624618] Call Trace:
[  287.624640]  dump_stack+0x244/0x39d
[  287.624666]  ? dump_stack_print_info.cold.1+0x20/0x20
[  287.631199] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  287.640502]  warn_alloc.cold.116+0xb7/0x1bd
[  287.643054] syz-fuzzer cpuset=/ mems_allowed=0
[  287.646677]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  287.675784]  ? lock_downgrade+0x900/0x900
[  287.679956]  ? trace_hardirqs_off+0xb8/0x310
[  287.684371]  ? trace_hardirqs_off+0xb8/0x310
[  287.688803]  __alloc_pages_slowpath+0x2651/0x2de0
[  287.693673]  ? warn_alloc+0x120/0x120
[  287.697477]  ? print_usage_bug+0xc0/0xc0
[  287.701538]  ? warn_alloc+0x120/0x120
[  287.705359]  ? warn_alloc+0x120/0x120
[  287.709163]  ? print_usage_bug+0xc0/0xc0
[  287.713232]  ? print_usage_bug+0xc0/0xc0
[  287.717305]  ? __lock_acquire+0x62f/0x4c20
[  287.721547]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.727083]  ? should_fail+0x22d/0xd01
[  287.730975]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  287.736100]  ? __lock_acquire+0x62f/0x4c20
[  287.740353]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  287.745469]  ? __lock_acquire+0x62f/0x4c20
[  287.749710]  ? should_fail+0x22d/0xd01
[  287.753600]  ? find_held_lock+0x36/0x1c0
[  287.757672]  ? mark_held_locks+0x130/0x130
[  287.761922]  ? mark_held_locks+0x130/0x130
[  287.766155]  ? zap_class+0x640/0x640
[  287.769872]  ? mark_held_locks+0xc7/0x130
[  287.774139]  ? do_raw_spin_unlock+0xa7/0x330
[  287.778550]  ? zap_class+0x640/0x640
[  287.782268]  ? print_usage_bug+0xc0/0xc0
[  287.786334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.791885]  ? check_preemption_disabled+0x48/0x280
[  287.796943]  ? __lock_is_held+0xb5/0x140
[  287.801011]  __alloc_pages_nodemask+0xad8/0xea0
[  287.805677]  ? zap_class+0x640/0x640
[  287.809398]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  287.814437]  ? find_held_lock+0x36/0x1c0
[  287.818506]  ? ____cache_alloc_node+0x1c7/0x1e0
[  287.823176]  ? lock_downgrade+0x900/0x900
[  287.827331]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.832877]  cache_grow_begin+0xa5/0x8c0
[  287.836965]  ? do_raw_spin_unlock+0xa7/0x330
[  287.841385]  fallback_alloc+0x204/0x2e0
[  287.845382]  ____cache_alloc_node+0x1c7/0x1e0
[  287.849893]  kmem_cache_alloc_node+0xe3/0x730
[  287.854396]  ? ipv6_get_ifaddr+0x42e/0x620
[  287.858657]  __alloc_skb+0x119/0x770
[  287.862373]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.867654]  ? netdev_alloc_frag+0x1f0/0x1f0
[  287.872063]  ? lock_downgrade+0x900/0x900
[  287.876234]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.881808]  ? refcount_sub_and_test_checked+0x203/0x310
[  287.887263]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  287.892716]  ? addrconf_rs_timer+0x690/0x690
[  287.897140]  ndisc_alloc_skb+0x144/0x340
[  287.901209]  ndisc_send_rs+0x331/0x6e0
[  287.905103]  addrconf_rs_timer+0x314/0x690
[  287.909537]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.913829]  call_timer_fn+0x272/0x920
[  287.917718]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.921953]  ? process_timeout+0x40/0x40
[  287.926027]  ? __run_timers+0x7da/0xc70
[  287.930003]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.934497]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.938990]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.943231]  ? lockdep_hardirqs_on+0x296/0x5b0
[  287.947813]  ? trace_hardirqs_on+0xbd/0x310
[  287.952152]  ? kasan_check_read+0x11/0x20
[  287.956314]  ? __run_timers+0x7da/0xc70
[  287.960288]  ? trace_hardirqs_off_caller+0x310/0x310
[  287.965395]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.969634]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.973869]  __run_timers+0x7e5/0xc70
[  287.977691]  ? timer_fixup_init+0x70/0x70
[  287.981838]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.986331]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.990828]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  287.995413]  ? trace_hardirqs_on+0xbd/0x310
[  287.999744]  ? kasan_check_read+0x11/0x20
[  288.003906]  ? finish_task_switch+0x1f4/0x910
[  288.008408]  ? trace_hardirqs_off_caller+0x310/0x310
[  288.013515]  ? compat_start_thread+0x80/0x80
[  288.017951]  ? pvclock_read_flags+0x160/0x160
[  288.022460]  ? __switch_to_asm+0x34/0x70
[  288.026553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.032093]  ? check_preemption_disabled+0x48/0x280
[  288.037124]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  288.042665]  ? rcu_pm_notify+0xc0/0xc0
[  288.046552]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.052091]  ? check_preemption_disabled+0x48/0x280
[  288.057116]  run_timer_softirq+0x52/0xb0
[  288.061182]  ? rcu_read_lock_sched_held+0x14f/0x180
[  288.066203]  __do_softirq+0x308/0xb7e
[  288.070015]  ? trace_hardirqs_on_caller+0xc0/0x310
[  288.074955]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  288.080059]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  288.085508]  ? trace_hardirqs_on+0x310/0x310
[  288.089930]  ? schedule+0x108/0x460
[  288.093567]  ? trace_hardirqs_off+0xb8/0x310
[  288.097980]  ? smpboot_thread_fn+0x68b/0xa00
[  288.102390]  ? trace_hardirqs_on+0x310/0x310
[  288.106803]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.112347]  ? check_preemption_disabled+0x48/0x280
[  288.117371]  ? takeover_tasklets+0xa90/0xa90
[  288.121780]  run_ksoftirqd+0x5e/0x100
[  288.125582]  smpboot_thread_fn+0x68b/0xa00
[  288.129824]  ? sort_range+0x30/0x30
[  288.133453]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  288.138581]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.144133]  ? __kthread_parkme+0xfb/0x1a0
[  288.148372]  ? sort_range+0x30/0x30
[  288.152013]  kthread+0x35a/0x440
[  288.155381]  ? kthread_stop+0x900/0x900
[  288.159375]  ret_from_fork+0x3a/0x50
[  288.163118] warn_alloc_show_mem: 1 callbacks suppressed
[  288.163130] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  288.163132] Mem-Info:
[  288.163165] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  288.163165]  active_file:12 inactive_file:14 isolated_file:0
[  288.163165]  unevictable:0 dirty:0 writeback:0 unstable:0
[  288.163165]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  288.163165]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  288.163165]  free:13757 free_pcp:113 free_cma:0
[  288.168512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  288.175438] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  288.177836] Call Trace:
[  288.210901] 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
[  288.220242]  <IRQ>
[  288.248075] lowmem_reserve[]: 0 2818 6321 6321
[  288.250667]  dump_stack+0x244/0x39d
[  288.276759] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  288.278938]  ? dump_stack_print_info.cold.1+0x20/0x20
[  288.283484] lowmem_reserve[]: 0 0 3503 3503
[  288.287118]  warn_alloc.cold.116+0xb7/0x1bd
[  288.314595] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  288.319791]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  288.324093] lowmem_reserve[]: 0 0 0 0
[  288.328469]  ? lock_downgrade+0x900/0x900
[  288.357860] 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
[  288.362779]  ? trace_hardirqs_off+0xb8/0x310
[  288.366560] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  288.370712]  ? trace_hardirqs_off+0xb8/0x310
[  288.384220] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  288.388638]  __alloc_pages_slowpath+0x2651/0x2de0
[  288.404146] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  288.408579]  ? warn_alloc+0x120/0x120
[  288.423103] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  288.423112] 4236 total pagecache pages
[  288.427967]  ? print_usage_bug+0xc0/0xc0
[  288.437331] 0 pages in swap cache
[  288.441136]  ? warn_alloc+0x120/0x120
[  288.449694] Swap cache stats: add 0, delete 0, find 0/0
[  288.449703] Free swap  = 0kB
[  288.453597]  ? warn_alloc+0x120/0x120
[  288.457642] Total swap = 0kB
[  288.461101]  ? print_usage_bug+0xc0/0xc0
[  288.464882] 1965979 pages RAM
[  288.470265]  ? print_usage_bug+0xc0/0xc0
[  288.473260] 0 pages HighMem/MovableOnly
[  288.473268] 342854 pages reserved
[  288.477073]  ? __lock_acquire+0x62f/0x4c20
[  288.480095] 0 pages cma reserved
[  288.484163]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.487318] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  288.491315]  ? should_fail+0x22d/0xd01
[  288.495360] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  288.498737]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  288.502961] ksoftirqd/0 cpuset=/ mems_allowed=0
[  288.506329]  ? __lock_acquire+0x62f/0x4c20
[  288.546511]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  288.551625]  ? __lock_acquire+0x62f/0x4c20
[  288.555868]  ? should_fail+0x22d/0xd01
[  288.559784]  ? find_held_lock+0x36/0x1c0
[  288.564411]  ? mark_held_locks+0x130/0x130
[  288.568664]  ? mark_held_locks+0x130/0x130
[  288.572918]  ? zap_class+0x640/0x640
[  288.576642]  ? zap_class+0x640/0x640
[  288.580369]  ? print_usage_bug+0xc0/0xc0
[  288.584442]  ? do_raw_spin_unlock+0xa7/0x330
[  288.588860]  ? zap_class+0x640/0x640
[  288.592600]  ? print_usage_bug+0xc0/0xc0
[  288.596673]  ? wq_watchdog_touch+0x9c/0xfe
[  288.600935]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.606489]  ? check_preemption_disabled+0x48/0x280
[  288.611527]  ? __lock_is_held+0xb5/0x140
[  288.615604]  __alloc_pages_nodemask+0xad8/0xea0
[  288.620287]  ? zap_class+0x640/0x640
[  288.624016]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  288.629054]  ? find_held_lock+0x36/0x1c0
[  288.633136]  ? ____cache_alloc_node+0x1c7/0x1e0
[  288.637816]  ? lock_downgrade+0x900/0x900
[  288.641984]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.647535]  cache_grow_begin+0xa5/0x8c0
[  288.651609]  ? do_raw_spin_unlock+0xa7/0x330
[  288.656064]  fallback_alloc+0x204/0x2e0
[  288.660059]  ____cache_alloc_node+0x1c7/0x1e0
[  288.664569]  kmem_cache_alloc_node+0xe3/0x730
[  288.669079]  ? ipv6_get_ifaddr+0x42e/0x620
[  288.673333]  __alloc_skb+0x119/0x770
[  288.677056]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  288.682346]  ? netdev_alloc_frag+0x1f0/0x1f0
[  288.686763]  ? lock_downgrade+0x900/0x900
[  288.690955]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.696502]  ? refcount_sub_and_test_checked+0x203/0x310
[  288.701966]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  288.707436]  ? addrconf_rs_timer+0x690/0x690
[  288.711865]  ndisc_alloc_skb+0x144/0x340
[  288.715961]  ndisc_send_rs+0x331/0x6e0
[  288.719865]  addrconf_rs_timer+0x314/0x690
[  288.724135]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.728389]  call_timer_fn+0x272/0x920
[  288.732289]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.736538]  ? process_timeout+0x40/0x40
[  288.740619]  ? mark_held_locks+0xc7/0x130
[  288.744778]  ? _raw_spin_unlock_irq+0x27/0x80
[  288.749279]  ? _raw_spin_unlock_irq+0x27/0x80
[  288.753783]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.758031]  ? lockdep_hardirqs_on+0x296/0x5b0
[  288.762627]  ? trace_hardirqs_on+0xbd/0x310
[  288.766982]  ? kasan_check_read+0x11/0x20
[  288.771160]  ? __run_timers+0x7da/0xc70
[  288.775145]  ? trace_hardirqs_off_caller+0x310/0x310
[  288.780260]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.784527]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.788770]  __run_timers+0x7e5/0xc70
[  288.792593]  ? timer_fixup_init+0x70/0x70
[  288.796757]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  288.801784]  ? zap_class+0x640/0x640
[  288.805506]  ? print_usage_bug+0xc0/0xc0
[  288.809577]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  288.814786]  ? find_held_lock+0x36/0x1c0
[  288.818865]  ? zap_class+0x640/0x640
[  288.822614]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.828165]  ? check_preemption_disabled+0x48/0x280
[  288.833202]  ? __lock_is_held+0xb5/0x140
[  288.837272]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.842819]  ? check_preemption_disabled+0x48/0x280
[  288.847848]  run_timer_softirq+0x52/0xb0
[  288.851932]  ? rcu_read_lock_sched_held+0x14f/0x180
[  288.856965]  __do_softirq+0x308/0xb7e
[  288.860794]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  288.865299]  ? lock_downgrade+0x900/0x900
[  288.869460]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  288.874580]  ? pvclock_read_flags+0x160/0x160
[  288.879087]  ? lapic_next_event+0x5a/0x90
[  288.883248]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.888798]  ? kvm_clock_read+0x18/0x30
[  288.892781]  ? kvm_sched_clock_read+0x9/0x20
[  288.897203]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.902750]  ? check_preemption_disabled+0x48/0x280
[  288.907784]  irq_exit+0x17f/0x1c0
[  288.911248]  smp_apic_timer_interrupt+0x1cb/0x760
[  288.916098]  ? smp_call_function_single_interrupt+0x159/0x650
[  288.921995]  ? smp_call_function_single_interrupt+0x650/0x650
[  288.927904]  ? interrupt_entry+0xb5/0xc0
[  288.931982]  ? trace_hardirqs_off_caller+0xbb/0x310
[  288.937007]  ? trace_hardirqs_off_caller+0xbb/0x310
[  288.942033]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.946903]  ? trace_hardirqs_on_caller+0x310/0x310
[  288.951952]  ? trace_hardirqs_on_caller+0x310/0x310
[  288.956984]  ? task_prio+0x50/0x50
[  288.960536]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.966085]  ? check_preemption_disabled+0x48/0x280
[  288.971114]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.975979]  apic_timer_interrupt+0xf/0x20
[  288.980217]  </IRQ>
[  288.982464] RIP: 0010:dump_stack+0x358/0x39d
[  288.986884] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  289.005812] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  289.013534] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  289.020809] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  289.028087] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  289.035364] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  289.042637] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  289.049952]  ? dump_stack+0x34f/0x39d
[  289.053775]  ? dump_stack_print_info.cold.1+0x20/0x20
[  289.058982]  ? mark_held_locks+0x130/0x130
[  289.063225]  ? mark_held_locks+0x130/0x130
[  289.067475]  dump_header+0x27b/0xf72
[  289.071224]  ? pagefault_out_of_memory+0x197/0x197
[  289.076171]  ? __lock_acquire+0x62f/0x4c20
[  289.080423]  ? percpu_ref_get_many+0x240/0x240
[  289.085024]  ? print_usage_bug+0xc0/0xc0
[  289.089103]  ? zap_class+0x640/0x640
[  289.092827]  ? print_usage_bug+0xc0/0xc0
[  289.096912]  ? print_usage_bug+0xc0/0xc0
[  289.100989]  ? zap_class+0x640/0x640
[  289.104717]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.110267]  ? find_held_lock+0x36/0x1c0
[  289.114344]  ? mark_held_locks+0xc7/0x130
[  289.118507]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  289.123618]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  289.128730]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  289.133324]  ? trace_hardirqs_on+0xbd/0x310
[  289.137653]  ? kasan_check_read+0x11/0x20
[  289.141808]  ? ___ratelimit+0x3b4/0x672
[  289.145795]  ? trace_hardirqs_off_caller+0x310/0x310
[  289.150923]  ? trace_hardirqs_on+0x310/0x310
[  289.155348]  ? lock_downgrade+0x900/0x900
[  289.159511]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  289.164626]  ? ___ratelimit+0x3b9/0x672
[  289.168612]  ? idr_get_free+0xf70/0xf70
[  289.172644]  ? find_held_lock+0x36/0x1c0
[  289.176725]  oom_kill_process.cold.27+0x10/0x903
[  289.181495]  ? zap_class+0x640/0x640
[  289.185224]  ? check_preemption_disabled+0x48/0x280
[  289.190252]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.195195]  ? kasan_check_read+0x11/0x20
[  289.199354]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.204642]  ? oom_evaluate_task+0x540/0x540
[  289.209062]  ? find_held_lock+0x36/0x1c0
[  289.213139]  ? out_of_memory+0x974/0x1430
[  289.217296]  ? lock_downgrade+0x900/0x900
[  289.221457]  ? check_preemption_disabled+0x48/0x280
[  289.226488]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.231434]  ? kasan_check_read+0x11/0x20
[  289.235592]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.240879]  ? rcu_softirq_qs+0x20/0x20
[  289.244906]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.250454]  ? oom_evaluate_task+0x302/0x540
[  289.254969]  out_of_memory+0xa84/0x1430
[  289.258963]  ? oom_killer_disable+0x3a0/0x3a0
[  289.263471]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  289.268418]  ? __ww_mutex_check_waiters+0x160/0x160
[  289.273471]  __alloc_pages_slowpath+0x232c/0x2de0
[  289.278365]  ? warn_alloc+0x120/0x120
[  289.282179]  ? mark_held_locks+0x130/0x130
[  289.286432]  ? find_get_entry+0xaae/0x1120
[  289.290684]  ? filemap_map_pages+0x1a20/0x1a20
[  289.295279]  ? zap_class+0x640/0x640
[  289.299008]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.304555]  ? check_preemption_disabled+0x48/0x280
[  289.309580]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.315130]  ? should_fail+0x22d/0xd01
[  289.319038]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  289.324155]  ? zap_class+0x640/0x640
[  289.327921]  ? __lock_is_held+0xb5/0x140
[  289.332007]  ? mark_held_locks+0x130/0x130
[  289.336259]  ? lock_release+0xa00/0xa00
[  289.340245]  ? perf_trace_sched_process_exec+0x860/0x860
[  289.345708]  ? xa_load+0x2ba/0x460
[  289.349258]  ? lock_downgrade+0x900/0x900
[  289.353426]  ? __might_sleep+0x95/0x190
[  289.357422]  __alloc_pages_nodemask+0xad8/0xea0
[  289.362107]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  289.367132]  ? __page_cache_alloc+0x191/0x5c0
[  289.371634]  ? xa_load+0x2e1/0x460
[  289.375183]  ? xa_clear_mark+0x40/0x40
[  289.379083]  ? zap_class+0x640/0x640
[  289.382813]  ? zap_class+0x640/0x640
[  289.386534]  ? zap_class+0x640/0x640
[  289.390259]  ? __do_page_cache_readahead+0x663/0x810
[  289.395376]  ? find_held_lock+0x36/0x1c0
[  289.399468]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  289.405023]  alloc_pages_current+0x173/0x350
[  289.409452]  __page_cache_alloc+0x38c/0x5c0
[  289.413785]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.418721]  ? kasan_check_read+0x11/0x20
[  289.422906]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.428250]  ? generic_perform_write+0x6a0/0x6a0
[  289.433019]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.438696]  ? check_preemption_disabled+0x48/0x280
[  289.443731]  filemap_fault+0x1595/0x25f0
[  289.447814]  ? __lock_page_or_retry+0xa00/0xa00
[  289.452497]  ? mark_held_locks+0x130/0x130
[  289.456751]  ? filemap_map_pages+0xd6b/0x1a20
[  289.461260]  ? lock_downgrade+0x900/0x900
[  289.465421]  ? check_preemption_disabled+0x48/0x280
[  289.470455]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.475392]  ? kasan_check_read+0x11/0x20
[  289.479557]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.484845]  ? rcu_softirq_qs+0x20/0x20
[  289.488843]  ? filemap_map_pages+0xd92/0x1a20
[  289.493362]  ? find_get_entries_tag+0x1400/0x1400
[  289.498217]  ? debug_object_destroy+0x2b0/0x2b0
[  289.502924]  ? lock_pi_update_atomic+0x150/0x150
[  289.507695]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.513254]  ? lock_acquire+0x1ed/0x520
[  289.517235]  ? ext4_filemap_fault+0x7a/0xad
[  289.521573]  ? lock_release+0xa00/0xa00
[  289.525554]  ? perf_trace_sched_process_exec+0x860/0x860
[  289.531017]  ? print_usage_bug+0xc0/0xc0
[  289.535089]  ? print_usage_bug+0xc0/0xc0
[  289.539171]  ? down_read+0x8d/0x120
[  289.542810]  ? ext4_filemap_fault+0x7a/0xad
[  289.547141]  ? __down_interruptible+0x700/0x700
[  289.551830]  ext4_filemap_fault+0x82/0xad
[  289.555991]  __do_fault+0x100/0x6b0
[  289.559627]  ? find_held_lock+0x36/0x1c0
[  289.563704]  ? pmd_devmap_trans_unstable+0x220/0x220
[  289.568820]  ? mark_held_locks+0x130/0x130
[  289.573065]  ? mark_held_locks+0x130/0x130
[  289.577310]  ? _raw_spin_unlock_irq+0x27/0x80
[  289.581814]  ? _raw_spin_unlock_irq+0x27/0x80
[  289.586320]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  289.590935]  ? kasan_check_read+0x11/0x20
[  289.595095]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.600651]  __handle_mm_fault+0x3ea0/0x5be0
[  289.605084]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  289.609944]  ? finish_task_switch+0x1f4/0x910
[  289.614446]  ? finish_task_switch+0x1b4/0x910
[  289.618953]  ? __switch_to_asm+0x34/0x70
[  289.623034]  ? preempt_notifier_register+0x200/0x200
[  289.628145]  ? __switch_to_asm+0x34/0x70
[  289.632218]  ? __switch_to_asm+0x34/0x70
[  289.636300]  ? zap_class+0x640/0x640
[  289.640027]  ? zap_class+0x640/0x640
[  289.643753]  ? __x64_sys_futex+0x53e/0x6a0
[  289.648003]  ? find_held_lock+0x36/0x1c0
[  289.652082]  ? handle_mm_fault+0x42a/0xc70
[  289.656327]  ? lock_downgrade+0x900/0x900
[  289.660489]  ? check_preemption_disabled+0x48/0x280
[  289.665518]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.670457]  ? kasan_check_read+0x11/0x20
[  289.674613]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.679916]  ? rcu_softirq_qs+0x20/0x20
[  289.683921]  ? trace_hardirqs_off_caller+0x310/0x310
[  289.689037]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.694638]  ? check_preemption_disabled+0x48/0x280
[  289.699673]  handle_mm_fault+0x54f/0xc70
[  289.703748]  ? __handle_mm_fault+0x5be0/0x5be0
[  289.708344]  ? find_vma+0x34/0x190
[  289.711917]  __do_page_fault+0x5e8/0xe60
[  289.715991]  ? trace_hardirqs_off+0xb8/0x310
[  289.720424]  do_page_fault+0xf2/0x7e0
[  289.724235]  ? vmalloc_sync_all+0x30/0x30
[  289.728391]  ? error_entry+0x70/0xd0
[  289.732122]  ? trace_hardirqs_off_caller+0xbb/0x310
[  289.737146]  ? trace_hardirqs_on_caller+0xc0/0x310
[  289.742084]  ? syscall_return_slowpath+0x5e0/0x5e0
[  289.747023]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  289.751875]  ? trace_hardirqs_on_caller+0x310/0x310
[  289.756931]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  289.762410]  ? prepare_exit_to_usermode+0x291/0x3b0
[  289.767439]  ? page_fault+0x8/0x30
[  289.770993]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  289.775847]  ? page_fault+0x8/0x30
[  289.779396]  page_fault+0x1e/0x30
[  289.782865] RIP: 0033:0x40f9c0
[  289.786096] Code: Bad RIP value.
[  289.789465] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  289.794832] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  289.802104] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  289.809382] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  289.816661] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  289.823941] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  289.831245] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  289.831320] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  289.838008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  289.838014] Call Trace:
[  289.838035]  dump_stack+0x244/0x39d
[  289.838054]  ? dump_stack_print_info.cold.1+0x20/0x20
[  289.844624] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  289.853924]  warn_alloc.cold.116+0xb7/0x1bd
[  289.856488] syz-fuzzer cpuset=/ mems_allowed=0
[  289.860120]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  289.889253]  ? lock_downgrade+0x900/0x900
[  289.893418]  ? trace_hardirqs_off+0xb8/0x310
[  289.897841]  ? trace_hardirqs_off+0xb8/0x310
[  289.902268]  __alloc_pages_slowpath+0x2651/0x2de0
[  289.907152]  ? warn_alloc+0x120/0x120
[  289.910967]  ? print_usage_bug+0xc0/0xc0
[  289.915043]  ? warn_alloc+0x120/0x120
[  289.918860]  ? warn_alloc+0x120/0x120
[  289.922692]  ? print_usage_bug+0xc0/0xc0
[  289.926767]  ? print_usage_bug+0xc0/0xc0
[  289.930838]  ? __lock_acquire+0x62f/0x4c20
[  289.935093]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.940647]  ? should_fail+0x22d/0xd01
[  289.944549]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  289.949662]  ? __lock_acquire+0x62f/0x4c20
[  289.953939]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  289.959055]  ? __lock_acquire+0x62f/0x4c20
[  289.963298]  ? should_fail+0x22d/0xd01
[  289.967200]  ? find_held_lock+0x36/0x1c0
[  289.971283]  ? mark_held_locks+0x130/0x130
[  289.975537]  ? mark_held_locks+0x130/0x130
[  289.979841]  ? zap_class+0x640/0x640
[  289.983570]  ? mark_held_locks+0xc7/0x130
[  289.987727]  ? do_raw_spin_unlock+0xa7/0x330
[  289.992144]  ? zap_class+0x640/0x640
[  289.995867]  ? print_usage_bug+0xc0/0xc0
[  289.999973]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.005530]  ? check_preemption_disabled+0x48/0x280
[  290.010567]  ? __lock_is_held+0xb5/0x140
[  290.014644]  __alloc_pages_nodemask+0xad8/0xea0
[  290.019323]  ? zap_class+0x640/0x640
[  290.023054]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  290.028094]  ? find_held_lock+0x36/0x1c0
[  290.032180]  ? ____cache_alloc_node+0x1c7/0x1e0
[  290.036860]  ? lock_downgrade+0x900/0x900
[  290.041045]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.046598]  cache_grow_begin+0xa5/0x8c0
[  290.050669]  ? do_raw_spin_unlock+0xa7/0x330
[  290.055093]  fallback_alloc+0x204/0x2e0
[  290.059083]  ____cache_alloc_node+0x1c7/0x1e0
[  290.063599]  kmem_cache_alloc_node+0xe3/0x730
[  290.068109]  ? ipv6_get_ifaddr+0x42e/0x620
[  290.072363]  __alloc_skb+0x119/0x770
[  290.076088]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.081378]  ? netdev_alloc_frag+0x1f0/0x1f0
[  290.085797]  ? lock_downgrade+0x900/0x900
[  290.089967]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.095534]  ? refcount_sub_and_test_checked+0x203/0x310
[  290.101001]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  290.106464]  ? addrconf_rs_timer+0x690/0x690
[  290.110915]  ndisc_alloc_skb+0x144/0x340
[  290.114994]  ndisc_send_rs+0x331/0x6e0
[  290.118915]  addrconf_rs_timer+0x314/0x690
[  290.123169]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.127424]  call_timer_fn+0x272/0x920
[  290.131320]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.135562]  ? process_timeout+0x40/0x40
[  290.139640]  ? __run_timers+0x7da/0xc70
[  290.143626]  ? _raw_spin_unlock_irq+0x27/0x80
[  290.148131]  ? _raw_spin_unlock_irq+0x27/0x80
[  290.152635]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.156879]  ? lockdep_hardirqs_on+0x296/0x5b0
[  290.161504]  ? trace_hardirqs_on+0xbd/0x310
[  290.165833]  ? kasan_check_read+0x11/0x20
[  290.169987]  ? __run_timers+0x7da/0xc70
[  290.173975]  ? trace_hardirqs_off_caller+0x310/0x310
[  290.179094]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.183342]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.187585]  __run_timers+0x7e5/0xc70
[  290.191405]  ? timer_fixup_init+0x70/0x70
[  290.195565]  ? _raw_spin_unlock_irq+0x27/0x80
[  290.200068]  ? _raw_spin_unlock_irq+0x27/0x80
[  290.204577]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  290.209172]  ? trace_hardirqs_on+0xbd/0x310
[  290.213506]  ? kasan_check_read+0x11/0x20
[  290.217663]  ? finish_task_switch+0x1f4/0x910
[  290.222167]  ? trace_hardirqs_off_caller+0x310/0x310
[  290.227282]  ? compat_start_thread+0x80/0x80
[  290.231720]  ? pvclock_read_flags+0x160/0x160
[  290.236225]  ? __switch_to_asm+0x34/0x70
[  290.240296]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.245845]  ? check_preemption_disabled+0x48/0x280
[  290.250879]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  290.256451]  ? rcu_pm_notify+0xc0/0xc0
[  290.260354]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.265924]  ? check_preemption_disabled+0x48/0x280
[  290.270958]  run_timer_softirq+0x52/0xb0
[  290.275031]  ? rcu_read_lock_sched_held+0x14f/0x180
[  290.280062]  __do_softirq+0x308/0xb7e
[  290.283879]  ? trace_hardirqs_on_caller+0xc0/0x310
[  290.288846]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  290.293960]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  290.299433]  ? trace_hardirqs_on+0x310/0x310
[  290.303858]  ? schedule+0x108/0x460
[  290.307528]  ? trace_hardirqs_off+0xb8/0x310
[  290.311952]  ? smpboot_thread_fn+0x68b/0xa00
[  290.316369]  ? trace_hardirqs_on+0x310/0x310
[  290.320796]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.326346]  ? check_preemption_disabled+0x48/0x280
[  290.331373]  ? takeover_tasklets+0xa90/0xa90
[  290.335791]  run_ksoftirqd+0x5e/0x100
[  290.339605]  smpboot_thread_fn+0x68b/0xa00
[  290.343879]  ? sort_range+0x30/0x30
[  290.347540]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  290.352655]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.358201]  ? __kthread_parkme+0xfb/0x1a0
[  290.362450]  ? sort_range+0x30/0x30
[  290.366086]  kthread+0x35a/0x440
[  290.369464]  ? kthread_stop+0x900/0x900
[  290.373450]  ret_from_fork+0x3a/0x50
[  290.377194] warn_alloc_show_mem: 1 callbacks suppressed
[  290.377205] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  290.377207] Mem-Info:
[  290.377240] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  290.377240]  active_file:12 inactive_file:14 isolated_file:0
[  290.377240]  unevictable:0 dirty:0 writeback:0 unstable:0
[  290.377240]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  290.377240]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  290.377240]  free:13757 free_pcp:113 free_cma:0
[  290.382587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  290.389524] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  290.392021] Call Trace:
[  290.425070] 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
[  290.434653]  <IRQ>
[  290.462493] lowmem_reserve[]: 0 2818 6321 6321
[  290.465104]  dump_stack+0x244/0x39d
[  290.491194] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  290.493353]  ? dump_stack_print_info.cold.1+0x20/0x20
[  290.497929] lowmem_reserve[]: 0 0 3503 3503
[  290.501570]  warn_alloc.cold.116+0xb7/0x1bd
[  290.529052] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  290.534249]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  290.538549] lowmem_reserve[]: 0 0 0 0
[  290.542873]  ? lock_downgrade+0x900/0x900
[  290.572211] 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
[  290.577072]  ? trace_hardirqs_off+0xb8/0x310
[  290.580841] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  290.585005]  ? trace_hardirqs_off+0xb8/0x310
[  290.598506] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  290.602939]  __alloc_pages_slowpath+0x2651/0x2de0
[  290.618443] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  290.622873]  ? warn_alloc+0x120/0x120
[  290.637411] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  290.642250]  ? print_usage_bug+0xc0/0xc0
[  290.651066] 4236 total pagecache pages
[  290.654865]  ? warn_alloc+0x120/0x120
[  290.663429] 0 pages in swap cache
[  290.667484]  ? warn_alloc+0x120/0x120
[  290.671353] Swap cache stats: add 0, delete 0, find 0/0
[  290.671361] Free swap  = 0kB
[  290.675167]  ? print_usage_bug+0xc0/0xc0
[  290.678609] Total swap = 0kB
[  290.682414]  ? kvm_clock_read+0x18/0x30
[  290.687757] 1965979 pages RAM
[  290.690781]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  290.694822] 0 pages HighMem/MovableOnly
[  290.697844]  ? print_usage_bug+0xc0/0xc0
[  290.701804] 342854 pages reserved
[  290.704932]  ? __lock_acquire+0x62f/0x4c20
[  290.709938] 0 pages cma reserved
[  290.713935]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.718076] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  290.721436]  ? should_fail+0x22d/0xd01
[  290.725740] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  290.729026]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.734551] ksoftirqd/0 cpuset=/ mems_allowed=0
[  290.741049]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  290.770408]  ? __lock_acquire+0x62f/0x4c20
[  290.774659]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  290.779769]  ? __lock_acquire+0x62f/0x4c20
[  290.784012]  ? should_fail+0x22d/0xd01
[  290.787921]  ? rcu_irq_exit+0x1a2/0x390
[  290.791937]  ? mark_held_locks+0x130/0x130
[  290.796187]  ? mark_held_locks+0x130/0x130
[  290.800441]  ? mark_held_locks+0xc7/0x130
[  290.804602]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  290.809627]  ? zap_class+0x640/0x640
[  290.813353]  ? print_usage_bug+0xc0/0xc0
[  290.817432]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.822983]  ? check_preemption_disabled+0x48/0x280
[  290.828024]  ? __lock_is_held+0xb5/0x140
[  290.832102]  __alloc_pages_nodemask+0xad8/0xea0
[  290.836782]  ? zap_class+0x640/0x640
[  290.840509]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  290.845545]  ? find_held_lock+0x36/0x1c0
[  290.849793]  ? ____cache_alloc_node+0x1c7/0x1e0
[  290.854475]  ? lock_downgrade+0x900/0x900
[  290.858643]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.864195]  cache_grow_begin+0xa5/0x8c0
[  290.868267]  ? do_raw_spin_unlock+0xa7/0x330
[  290.872693]  fallback_alloc+0x204/0x2e0
[  290.876682]  ____cache_alloc_node+0x1c7/0x1e0
[  290.881194]  kmem_cache_alloc_node+0xe3/0x730
[  290.885699]  ? ipv6_get_ifaddr+0x42e/0x620
[  290.889969]  __alloc_skb+0x119/0x770
[  290.893693]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.898985]  ? netdev_alloc_frag+0x1f0/0x1f0
[  290.903412]  ? lock_downgrade+0x900/0x900
[  290.907576]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.913125]  ? refcount_sub_and_test_checked+0x203/0x310
[  290.918589]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  290.924049]  ? addrconf_rs_timer+0x690/0x690
[  290.928482]  ndisc_alloc_skb+0x144/0x340
[  290.932556]  ndisc_send_rs+0x331/0x6e0
[  290.936456]  addrconf_rs_timer+0x314/0x690
[  290.940706]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.944982]  call_timer_fn+0x272/0x920
[  290.948880]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.953145]  ? process_timeout+0x40/0x40
[  290.957225]  ? mark_held_locks+0xc7/0x130
[  290.961384]  ? _raw_spin_unlock_irq+0x27/0x80
[  290.965911]  ? _raw_spin_unlock_irq+0x27/0x80
[  290.970423]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.974670]  ? lockdep_hardirqs_on+0x296/0x5b0
[  290.979267]  ? trace_hardirqs_on+0xbd/0x310
[  290.983596]  ? kasan_check_read+0x11/0x20
[  290.987750]  ? __run_timers+0x7da/0xc70
[  290.991733]  ? trace_hardirqs_off_caller+0x310/0x310
[  290.996852]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.001102]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.005348]  __run_timers+0x7e5/0xc70
[  291.009170]  ? timer_fixup_init+0x70/0x70
[  291.013336]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  291.018364]  ? zap_class+0x640/0x640
[  291.022097]  ? print_usage_bug+0xc0/0xc0
[  291.026171]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  291.031380]  ? find_held_lock+0x36/0x1c0
[  291.035461]  ? zap_class+0x640/0x640
[  291.039191]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.044740]  ? check_preemption_disabled+0x48/0x280
[  291.049776]  ? __lock_is_held+0xb5/0x140
[  291.053848]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.059405]  ? check_preemption_disabled+0x48/0x280
[  291.064440]  run_timer_softirq+0x52/0xb0
[  291.068515]  ? rcu_read_lock_sched_held+0x14f/0x180
[  291.073545]  __do_softirq+0x308/0xb7e
[  291.077406]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  291.081923]  ? lock_downgrade+0x900/0x900
[  291.086090]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  291.091214]  ? pvclock_read_flags+0x160/0x160
[  291.095721]  ? lapic_next_event+0x5a/0x90
[  291.099882]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.105456]  ? kvm_clock_read+0x18/0x30
[  291.109443]  ? kvm_sched_clock_read+0x9/0x20
[  291.113866]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.119435]  ? check_preemption_disabled+0x48/0x280
[  291.124470]  irq_exit+0x17f/0x1c0
[  291.127947]  smp_apic_timer_interrupt+0x1cb/0x760
[  291.132802]  ? smp_call_function_single_interrupt+0x159/0x650
[  291.138698]  ? smp_call_function_single_interrupt+0x650/0x650
[  291.144591]  ? interrupt_entry+0xb5/0xc0
[  291.148665]  ? trace_hardirqs_off_caller+0xbb/0x310
[  291.153690]  ? trace_hardirqs_off_caller+0xbb/0x310
[  291.158716]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.163571]  ? trace_hardirqs_on_caller+0x310/0x310
[  291.168599]  ? trace_hardirqs_on_caller+0x310/0x310
[  291.173622]  ? task_prio+0x50/0x50
[  291.177175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.182721]  ? check_preemption_disabled+0x48/0x280
[  291.187750]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.192608]  apic_timer_interrupt+0xf/0x20
[  291.196846]  </IRQ>
[  291.199097] RIP: 0010:dump_stack+0x358/0x39d
[  291.203514] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  291.222425] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  291.230139] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  291.237421] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  291.244695] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  291.251970] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  291.259244] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  291.266544]  ? dump_stack+0x34f/0x39d
[  291.270370]  ? dump_stack_print_info.cold.1+0x20/0x20
[  291.275577]  ? mark_held_locks+0x130/0x130
[  291.279822]  ? mark_held_locks+0x130/0x130
[  291.284077]  dump_header+0x27b/0xf72
[  291.287811]  ? pagefault_out_of_memory+0x197/0x197
[  291.292760]  ? __lock_acquire+0x62f/0x4c20
[  291.297013]  ? percpu_ref_get_many+0x240/0x240
[  291.301607]  ? print_usage_bug+0xc0/0xc0
[  291.305684]  ? zap_class+0x640/0x640
[  291.309417]  ? print_usage_bug+0xc0/0xc0
[  291.313490]  ? print_usage_bug+0xc0/0xc0
[  291.317565]  ? zap_class+0x640/0x640
[  291.321357]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.326928]  ? find_held_lock+0x36/0x1c0
[  291.331009]  ? mark_held_locks+0xc7/0x130
[  291.335168]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  291.340279]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  291.345393]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  291.349999]  ? trace_hardirqs_on+0xbd/0x310
[  291.354329]  ? kasan_check_read+0x11/0x20
[  291.358487]  ? ___ratelimit+0x3b4/0x672
[  291.362473]  ? trace_hardirqs_off_caller+0x310/0x310
[  291.367586]  ? trace_hardirqs_on+0x310/0x310
[  291.372007]  ? lock_downgrade+0x900/0x900
[  291.376172]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  291.381283]  ? ___ratelimit+0x3b9/0x672
[  291.385267]  ? idr_get_free+0xf70/0xf70
[  291.389248]  ? find_held_lock+0x36/0x1c0
[  291.393329]  oom_kill_process.cold.27+0x10/0x903
[  291.398093]  ? zap_class+0x640/0x640
[  291.401818]  ? check_preemption_disabled+0x48/0x280
[  291.406848]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  291.411789]  ? kasan_check_read+0x11/0x20
[  291.415945]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.421231]  ? oom_evaluate_task+0x540/0x540
[  291.425652]  ? find_held_lock+0x36/0x1c0
[  291.429727]  ? out_of_memory+0x974/0x1430
[  291.433903]  ? lock_downgrade+0x900/0x900
[  291.438066]  ? check_preemption_disabled+0x48/0x280
[  291.443105]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  291.448041]  ? kasan_check_read+0x11/0x20
[  291.452200]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.457486]  ? rcu_softirq_qs+0x20/0x20
[  291.461475]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.467025]  ? oom_evaluate_task+0x302/0x540
[  291.471449]  out_of_memory+0xa84/0x1430
[  291.475447]  ? oom_killer_disable+0x3a0/0x3a0
[  291.479958]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  291.484926]  ? __ww_mutex_check_waiters+0x160/0x160
[  291.489969]  __alloc_pages_slowpath+0x232c/0x2de0
[  291.494852]  ? warn_alloc+0x120/0x120
[  291.498681]  ? mark_held_locks+0x130/0x130
[  291.502945]  ? find_get_entry+0xaae/0x1120
[  291.507202]  ? filemap_map_pages+0x1a20/0x1a20
[  291.511801]  ? zap_class+0x640/0x640
[  291.515530]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.521079]  ? check_preemption_disabled+0x48/0x280
[  291.526108]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.531658]  ? should_fail+0x22d/0xd01
[  291.535560]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  291.540677]  ? zap_class+0x640/0x640
[  291.544431]  ? __lock_is_held+0xb5/0x140
[  291.548511]  ? mark_held_locks+0x130/0x130
[  291.552760]  ? lock_release+0xa00/0xa00
[  291.556744]  ? perf_trace_sched_process_exec+0x860/0x860
[  291.562205]  ? xa_load+0x2ba/0x460
[  291.565759]  ? lock_downgrade+0x900/0x900
[  291.569938]  ? __might_sleep+0x95/0x190
[  291.573944]  __alloc_pages_nodemask+0xad8/0xea0
[  291.578632]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  291.583659]  ? __page_cache_alloc+0x191/0x5c0
[  291.588215]  ? xa_load+0x2e1/0x460
[  291.591767]  ? xa_clear_mark+0x40/0x40
[  291.595664]  ? zap_class+0x640/0x640
[  291.599394]  ? zap_class+0x640/0x640
[  291.603125]  ? zap_class+0x640/0x640
[  291.606850]  ? __do_page_cache_readahead+0x663/0x810
[  291.611975]  ? find_held_lock+0x36/0x1c0
[  291.616052]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  291.621610]  alloc_pages_current+0x173/0x350
[  291.626034]  __page_cache_alloc+0x38c/0x5c0
[  291.630367]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  291.635310]  ? kasan_check_read+0x11/0x20
[  291.639469]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.644759]  ? generic_perform_write+0x6a0/0x6a0
[  291.649525]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.655075]  ? check_preemption_disabled+0x48/0x280
[  291.660107]  filemap_fault+0x1595/0x25f0
[  291.664449]  ? __lock_page_or_retry+0xa00/0xa00
[  291.669130]  ? mark_held_locks+0x130/0x130
[  291.673386]  ? filemap_map_pages+0xd6b/0x1a20
[  291.677911]  ? lock_downgrade+0x900/0x900
[  291.682074]  ? check_preemption_disabled+0x48/0x280
[  291.687102]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  291.692155]  ? kasan_check_read+0x11/0x20
[  291.696316]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.701603]  ? rcu_softirq_qs+0x20/0x20
[  291.705603]  ? filemap_map_pages+0xd92/0x1a20
[  291.710121]  ? find_get_entries_tag+0x1400/0x1400
[  291.714981]  ? debug_object_destroy+0x2b0/0x2b0
[  291.719665]  ? lock_pi_update_atomic+0x150/0x150
[  291.724442]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.730004]  ? lock_acquire+0x1ed/0x520
[  291.733990]  ? ext4_filemap_fault+0x7a/0xad
[  291.738328]  ? lock_release+0xa00/0xa00
[  291.742309]  ? perf_trace_sched_process_exec+0x860/0x860
[  291.747773]  ? print_usage_bug+0xc0/0xc0
[  291.751845]  ? print_usage_bug+0xc0/0xc0
[  291.755941]  ? down_read+0x8d/0x120
[  291.759575]  ? ext4_filemap_fault+0x7a/0xad
[  291.763922]  ? __down_interruptible+0x700/0x700
[  291.768614]  ext4_filemap_fault+0x82/0xad
[  291.772776]  __do_fault+0x100/0x6b0
[  291.776447]  ? find_held_lock+0x36/0x1c0
[  291.780521]  ? pmd_devmap_trans_unstable+0x220/0x220
[  291.785640]  ? mark_held_locks+0x130/0x130
[  291.789884]  ? mark_held_locks+0x130/0x130
[  291.794145]  ? _raw_spin_unlock_irq+0x27/0x80
[  291.798649]  ? _raw_spin_unlock_irq+0x27/0x80
[  291.803156]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  291.807754]  ? kasan_check_read+0x11/0x20
[  291.811931]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.817484]  __handle_mm_fault+0x3ea0/0x5be0
[  291.821927]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  291.826782]  ? finish_task_switch+0x1f4/0x910
[  291.831288]  ? finish_task_switch+0x1b4/0x910
[  291.835792]  ? __switch_to_asm+0x34/0x70
[  291.839869]  ? preempt_notifier_register+0x200/0x200
[  291.845000]  ? __switch_to_asm+0x34/0x70
[  291.849073]  ? __switch_to_asm+0x34/0x70
[  291.853158]  ? zap_class+0x640/0x640
[  291.856883]  ? zap_class+0x640/0x640
[  291.860630]  ? __x64_sys_futex+0x53e/0x6a0
[  291.864878]  ? find_held_lock+0x36/0x1c0
[  291.868982]  ? handle_mm_fault+0x42a/0xc70
[  291.873315]  ? lock_downgrade+0x900/0x900
[  291.877475]  ? check_preemption_disabled+0x48/0x280
[  291.882506]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  291.887444]  ? kasan_check_read+0x11/0x20
[  291.891602]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.896904]  ? rcu_softirq_qs+0x20/0x20
[  291.900907]  ? trace_hardirqs_off_caller+0x310/0x310
[  291.906026]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.911576]  ? check_preemption_disabled+0x48/0x280
[  291.916619]  handle_mm_fault+0x54f/0xc70
[  291.920700]  ? __handle_mm_fault+0x5be0/0x5be0
[  291.925298]  ? find_vma+0x34/0x190
[  291.928854]  __do_page_fault+0x5e8/0xe60
[  291.932945]  ? trace_hardirqs_off+0xb8/0x310
[  291.937378]  do_page_fault+0xf2/0x7e0
[  291.941199]  ? vmalloc_sync_all+0x30/0x30
[  291.945362]  ? error_entry+0x70/0xd0
[  291.949094]  ? trace_hardirqs_off_caller+0xbb/0x310
[  291.954119]  ? trace_hardirqs_on_caller+0xc0/0x310
[  291.959063]  ? syscall_return_slowpath+0x5e0/0x5e0
[  291.964005]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.968863]  ? trace_hardirqs_on_caller+0x310/0x310
[  291.973927]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  291.979403]  ? prepare_exit_to_usermode+0x291/0x3b0
[  291.984441]  ? page_fault+0x8/0x30
[  291.987998]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.992852]  ? page_fault+0x8/0x30
[  291.996406]  page_fault+0x1e/0x30
[  291.999869] RIP: 0033:0x40f9c0
[  292.003109] Code: Bad RIP value.
[  292.006479] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  292.011850] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  292.019130] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  292.026410] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  292.033812] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  292.041089] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  292.048401] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  292.048475] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  292.055166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  292.055171] Call Trace:
[  292.055195]  dump_stack+0x244/0x39d
[  292.055214]  ? dump_stack_print_info.cold.1+0x20/0x20
[  292.061750] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  292.071059]  warn_alloc.cold.116+0xb7/0x1bd
[  292.073625] syz-fuzzer cpuset=/ mems_allowed=0
[  292.077260]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  292.106436]  ? lock_downgrade+0x900/0x900
[  292.110606]  ? trace_hardirqs_off+0xb8/0x310
[  292.115030]  ? trace_hardirqs_off+0xb8/0x310
[  292.119462]  __alloc_pages_slowpath+0x2651/0x2de0
[  292.124342]  ? warn_alloc+0x120/0x120
[  292.128158]  ? print_usage_bug+0xc0/0xc0
[  292.132232]  ? warn_alloc+0x120/0x120
[  292.136044]  ? warn_alloc+0x120/0x120
[  292.139853]  ? print_usage_bug+0xc0/0xc0
[  292.143945]  ? print_usage_bug+0xc0/0xc0
[  292.148019]  ? __lock_acquire+0x62f/0x4c20
[  292.152277]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.157823]  ? should_fail+0x22d/0xd01
[  292.161729]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  292.166844]  ? __lock_acquire+0x62f/0x4c20
[  292.171091]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  292.176201]  ? __lock_acquire+0x62f/0x4c20
[  292.180441]  ? should_fail+0x22d/0xd01
[  292.184335]  ? find_held_lock+0x36/0x1c0
[  292.188412]  ? mark_held_locks+0x130/0x130
[  292.192660]  ? mark_held_locks+0x130/0x130
[  292.196919]  ? zap_class+0x640/0x640
[  292.200647]  ? mark_held_locks+0xc7/0x130
[  292.204800]  ? do_raw_spin_unlock+0xa7/0x330
[  292.209215]  ? zap_class+0x640/0x640
[  292.212946]  ? print_usage_bug+0xc0/0xc0
[  292.217026]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.222575]  ? check_preemption_disabled+0x48/0x280
[  292.227609]  ? __lock_is_held+0xb5/0x140
[  292.231688]  __alloc_pages_nodemask+0xad8/0xea0
[  292.236369]  ? zap_class+0x640/0x640
[  292.240097]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  292.245134]  ? find_held_lock+0x36/0x1c0
[  292.249214]  ? ____cache_alloc_node+0x1c7/0x1e0
[  292.253914]  ? lock_downgrade+0x900/0x900
[  292.258082]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.263635]  cache_grow_begin+0xa5/0x8c0
[  292.267706]  ? do_raw_spin_unlock+0xa7/0x330
[  292.272131]  fallback_alloc+0x204/0x2e0
[  292.276155]  ____cache_alloc_node+0x1c7/0x1e0
[  292.280666]  kmem_cache_alloc_node+0xe3/0x730
[  292.285175]  ? ipv6_get_ifaddr+0x42e/0x620
[  292.289431]  __alloc_skb+0x119/0x770
[  292.293153]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.298446]  ? netdev_alloc_frag+0x1f0/0x1f0
[  292.302865]  ? lock_downgrade+0x900/0x900
[  292.307058]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.312607]  ? refcount_sub_and_test_checked+0x203/0x310
[  292.318070]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  292.323531]  ? addrconf_rs_timer+0x690/0x690
[  292.327965]  ndisc_alloc_skb+0x144/0x340
[  292.332039]  ndisc_send_rs+0x331/0x6e0
[  292.335945]  addrconf_rs_timer+0x314/0x690
[  292.340198]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.344455]  call_timer_fn+0x272/0x920
[  292.348350]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.352592]  ? process_timeout+0x40/0x40
[  292.356721]  ? __run_timers+0x7da/0xc70
[  292.360711]  ? _raw_spin_unlock_irq+0x27/0x80
[  292.365214]  ? _raw_spin_unlock_irq+0x27/0x80
[  292.369718]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.373966]  ? lockdep_hardirqs_on+0x296/0x5b0
[  292.378565]  ? trace_hardirqs_on+0xbd/0x310
[  292.382917]  ? kasan_check_read+0x11/0x20
[  292.387079]  ? __run_timers+0x7da/0xc70
[  292.391064]  ? trace_hardirqs_off_caller+0x310/0x310
[  292.396184]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.400434]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.404678]  __run_timers+0x7e5/0xc70
[  292.408497]  ? timer_fixup_init+0x70/0x70
[  292.412658]  ? _raw_spin_unlock_irq+0x27/0x80
[  292.417159]  ? _raw_spin_unlock_irq+0x27/0x80
[  292.421676]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  292.426270]  ? trace_hardirqs_on+0xbd/0x310
[  292.430977]  ? kasan_check_read+0x11/0x20
[  292.435144]  ? finish_task_switch+0x1f4/0x910
[  292.439653]  ? trace_hardirqs_off_caller+0x310/0x310
[  292.444767]  ? compat_start_thread+0x80/0x80
[  292.449206]  ? pvclock_read_flags+0x160/0x160
[  292.453710]  ? __switch_to_asm+0x34/0x70
[  292.457785]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.463337]  ? check_preemption_disabled+0x48/0x280
[  292.468373]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  292.473939]  ? rcu_pm_notify+0xc0/0xc0
[  292.477836]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.483388]  ? check_preemption_disabled+0x48/0x280
[  292.488431]  run_timer_softirq+0x52/0xb0
[  292.492502]  ? rcu_read_lock_sched_held+0x14f/0x180
[  292.497530]  __do_softirq+0x308/0xb7e
[  292.501344]  ? trace_hardirqs_on_caller+0xc0/0x310
[  292.506287]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  292.511405]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  292.516863]  ? trace_hardirqs_on+0x310/0x310
[  292.521306]  ? schedule+0x108/0x460
[  292.524967]  ? trace_hardirqs_off+0xb8/0x310
[  292.529387]  ? smpboot_thread_fn+0x68b/0xa00
[  292.533806]  ? trace_hardirqs_on+0x310/0x310
[  292.538224]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.543776]  ? check_preemption_disabled+0x48/0x280
[  292.548851]  ? takeover_tasklets+0xa90/0xa90
[  292.553271]  run_ksoftirqd+0x5e/0x100
[  292.557085]  smpboot_thread_fn+0x68b/0xa00
[  292.561334]  ? sort_range+0x30/0x30
[  292.565197]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  292.570310]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.575859]  ? __kthread_parkme+0xfb/0x1a0
[  292.580126]  ? sort_range+0x30/0x30
[  292.583763]  kthread+0x35a/0x440
[  292.587140]  ? kthread_stop+0x900/0x900
[  292.591127]  ret_from_fork+0x3a/0x50
[  292.594864] warn_alloc_show_mem: 1 callbacks suppressed
[  292.594876] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  292.594878] Mem-Info:
[  292.594932] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  292.594932]  active_file:12 inactive_file:14 isolated_file:0
[  292.594932]  unevictable:0 dirty:0 writeback:0 unstable:0
[  292.594932]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  292.594932]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  292.594932]  free:13757 free_pcp:113 free_cma:0
[  292.600276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  292.607217] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  292.609675] Call Trace:
[  292.642834] 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
[  292.652190]  <IRQ>
[  292.680023] lowmem_reserve[]: 0 2818 6321 6321
[  292.682630]  dump_stack+0x244/0x39d
[  292.708726] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  292.710911]  ? dump_stack_print_info.cold.1+0x20/0x20
[  292.715471] lowmem_reserve[]: 0 0 3503 3503
[  292.719107]  warn_alloc.cold.116+0xb7/0x1bd
[  292.746589] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  292.751791]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  292.756091] lowmem_reserve[]: 0 0 0 0
[  292.760440]  ? lock_downgrade+0x900/0x900
[  292.789610] 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
[  292.794465]  ? trace_hardirqs_off+0xb8/0x310
[  292.798239] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  292.802394]  ? trace_hardirqs_off+0xb8/0x310
[  292.815922] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  292.820341]  __alloc_pages_slowpath+0x2651/0x2de0
[  292.835849] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  292.840279]  ? warn_alloc+0x120/0x120
[  292.854815] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  292.859657]  ? print_usage_bug+0xc0/0xc0
[  292.868475] 4236 total pagecache pages
[  292.872275]  ? warn_alloc+0x120/0x120
[  292.880840] 0 pages in swap cache
[  292.884915]  ? warn_alloc+0x120/0x120
[  292.888792] Swap cache stats: add 0, delete 0, find 0/0
[  292.892595]  ? print_usage_bug+0xc0/0xc0
[  292.896036] Free swap  = 0kB
[  292.899837]  ? print_usage_bug+0xc0/0xc0
[  292.905185] Total swap = 0kB
[  292.909247]  ? __lock_acquire+0x62f/0x4c20
[  292.912248] 1965979 pages RAM
[  292.916314]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.919313] 0 pages HighMem/MovableOnly
[  292.923559]  ? should_fail+0x22d/0xd01
[  292.926711] 342854 pages reserved
[  292.932379]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  292.936337] 0 pages cma reserved
[  292.940274]  ? __lock_acquire+0x62f/0x4c20
[  292.943779] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  292.948813]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  292.948826]  ? __lock_acquire+0x62f/0x4c20
[  292.948842]  ? should_fail+0x22d/0xd01
[  292.952254] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  292.956435]  ? find_held_lock+0x36/0x1c0
[  292.963000] ksoftirqd/0 cpuset=/ mems_allowed=0
[  292.968120]  ? mark_held_locks+0x130/0x130
[  292.999474]  ? mark_held_locks+0x130/0x130
[  293.003721]  ? zap_class+0x640/0x640
[  293.007447]  ? zap_class+0x640/0x640
[  293.011176]  ? print_usage_bug+0xc0/0xc0
[  293.015244]  ? do_raw_spin_unlock+0xa7/0x330
[  293.019661]  ? zap_class+0x640/0x640
[  293.023408]  ? print_usage_bug+0xc0/0xc0
[  293.027479]  ? wq_watchdog_touch+0x9c/0xfe
[  293.031728]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.037277]  ? check_preemption_disabled+0x48/0x280
[  293.042311]  ? __lock_is_held+0xb5/0x140
[  293.046386]  __alloc_pages_nodemask+0xad8/0xea0
[  293.051076]  ? zap_class+0x640/0x640
[  293.054802]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  293.059841]  ? find_held_lock+0x36/0x1c0
[  293.063948]  ? ____cache_alloc_node+0x1c7/0x1e0
[  293.068632]  ? lock_downgrade+0x900/0x900
[  293.072799]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.078351]  cache_grow_begin+0xa5/0x8c0
[  293.082425]  ? do_raw_spin_unlock+0xa7/0x330
[  293.086853]  fallback_alloc+0x204/0x2e0
[  293.090863]  ____cache_alloc_node+0x1c7/0x1e0
[  293.095405]  kmem_cache_alloc_node+0xe3/0x730
[  293.099931]  ? ipv6_get_ifaddr+0x42e/0x620
[  293.104190]  __alloc_skb+0x119/0x770
[  293.107926]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.113218]  ? netdev_alloc_frag+0x1f0/0x1f0
[  293.117637]  ? lock_downgrade+0x900/0x900
[  293.121802]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.127411]  ? refcount_sub_and_test_checked+0x203/0x310
[  293.132879]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  293.138362]  ? addrconf_rs_timer+0x690/0x690
[  293.142791]  ndisc_alloc_skb+0x144/0x340
[  293.146866]  ndisc_send_rs+0x331/0x6e0
[  293.150785]  addrconf_rs_timer+0x314/0x690
[  293.155038]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.159291]  call_timer_fn+0x272/0x920
[  293.163189]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.167432]  ? process_timeout+0x40/0x40
[  293.171512]  ? mark_held_locks+0xc7/0x130
[  293.175672]  ? _raw_spin_unlock_irq+0x27/0x80
[  293.180178]  ? _raw_spin_unlock_irq+0x27/0x80
[  293.184681]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.188942]  ? lockdep_hardirqs_on+0x296/0x5b0
[  293.193536]  ? trace_hardirqs_on+0xbd/0x310
[  293.197867]  ? kasan_check_read+0x11/0x20
[  293.202045]  ? __run_timers+0x7da/0xc70
[  293.206031]  ? trace_hardirqs_off_caller+0x310/0x310
[  293.211147]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.215396]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.219645]  __run_timers+0x7e5/0xc70
[  293.223465]  ? timer_fixup_init+0x70/0x70
[  293.227631]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  293.232657]  ? zap_class+0x640/0x640
[  293.236395]  ? print_usage_bug+0xc0/0xc0
[  293.240473]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  293.245679]  ? find_held_lock+0x36/0x1c0
[  293.249752]  ? zap_class+0x640/0x640
[  293.253482]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.259033]  ? check_preemption_disabled+0x48/0x280
[  293.264070]  ? __lock_is_held+0xb5/0x140
[  293.268143]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.273692]  ? check_preemption_disabled+0x48/0x280
[  293.278722]  run_timer_softirq+0x52/0xb0
[  293.282793]  ? rcu_read_lock_sched_held+0x14f/0x180
[  293.287823]  __do_softirq+0x308/0xb7e
[  293.291639]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  293.296145]  ? lock_downgrade+0x900/0x900
[  293.300308]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  293.305432]  ? pvclock_read_flags+0x160/0x160
[  293.310006]  ? lapic_next_event+0x5a/0x90
[  293.314168]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.319718]  ? kvm_clock_read+0x18/0x30
[  293.323700]  ? kvm_sched_clock_read+0x9/0x20
[  293.328120]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  293.333672]  ? check_preemption_disabled+0x48/0x280
[  293.338710]  irq_exit+0x17f/0x1c0
[  293.342175]  smp_apic_timer_interrupt+0x1cb/0x760
[  293.347027]  ? smp_call_function_single_interrupt+0x159/0x650
[  293.352988]  ? smp_call_function_single_interrupt+0x650/0x650
[  293.358884]  ? interrupt_entry+0xb5/0xc0
[  293.362980]  ? trace_hardirqs_off_caller+0xbb/0x310
[  293.368006]  ? trace_hardirqs_off_caller+0xbb/0x310
[  293.373035]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.377907]  ? trace_hardirqs_on_caller+0x310/0x310
[  293.382951]  ? trace_hardirqs_on_caller+0x310/0x310
[  293.387976]  ? task_prio+0x50/0x50
[  293.391528]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.397081]  ? check_preemption_disabled+0x48/0x280
[  293.402110]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.406975]  apic_timer_interrupt+0xf/0x20
[  293.411215]  </IRQ>
[  293.413465] RIP: 0010:dump_stack+0x358/0x39d
[  293.417886] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  293.436816] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  293.444535] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  293.451810] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  293.459090] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  293.466366] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  293.473646] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  293.480960]  ? dump_stack+0x34f/0x39d
[  293.484784]  ? dump_stack_print_info.cold.1+0x20/0x20
[  293.490000]  ? mark_held_locks+0x130/0x130
[  293.494246]  ? mark_held_locks+0x130/0x130
[  293.498493]  dump_header+0x27b/0xf72
[  293.502231]  ? pagefault_out_of_memory+0x197/0x197
[  293.507182]  ? __lock_acquire+0x62f/0x4c20
[  293.511432]  ? percpu_ref_get_many+0x240/0x240
[  293.516030]  ? print_usage_bug+0xc0/0xc0
[  293.520123]  ? zap_class+0x640/0x640
[  293.523849]  ? print_usage_bug+0xc0/0xc0
[  293.527937]  ? print_usage_bug+0xc0/0xc0
[  293.532010]  ? zap_class+0x640/0x640
[  293.535735]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.541283]  ? find_held_lock+0x36/0x1c0
[  293.545361]  ? mark_held_locks+0xc7/0x130
[  293.549519]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  293.554628]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  293.559741]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  293.564344]  ? trace_hardirqs_on+0xbd/0x310
[  293.568676]  ? kasan_check_read+0x11/0x20
[  293.572832]  ? ___ratelimit+0x3b4/0x672
[  293.576818]  ? trace_hardirqs_off_caller+0x310/0x310
[  293.581962]  ? trace_hardirqs_on+0x310/0x310
[  293.586381]  ? lock_downgrade+0x900/0x900
[  293.590574]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  293.595689]  ? ___ratelimit+0x3b9/0x672
[  293.599676]  ? idr_get_free+0xf70/0xf70
[  293.603658]  ? find_held_lock+0x36/0x1c0
[  293.607738]  oom_kill_process.cold.27+0x10/0x903
[  293.612505]  ? zap_class+0x640/0x640
[  293.616231]  ? check_preemption_disabled+0x48/0x280
[  293.621259]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  293.626197]  ? kasan_check_read+0x11/0x20
[  293.630352]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.635640]  ? oom_evaluate_task+0x540/0x540
[  293.640062]  ? find_held_lock+0x36/0x1c0
[  293.644141]  ? out_of_memory+0x974/0x1430
[  293.648300]  ? lock_downgrade+0x900/0x900
[  293.652456]  ? check_preemption_disabled+0x48/0x280
[  293.657488]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  293.662430]  ? kasan_check_read+0x11/0x20
[  293.666589]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.671877]  ? rcu_softirq_qs+0x20/0x20
[  293.675905]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  293.681454]  ? oom_evaluate_task+0x302/0x540
[  293.685876]  out_of_memory+0xa84/0x1430
[  293.689904]  ? oom_killer_disable+0x3a0/0x3a0
[  293.694437]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  293.699380]  ? __ww_mutex_check_waiters+0x160/0x160
[  293.704428]  __alloc_pages_slowpath+0x232c/0x2de0
[  293.709310]  ? warn_alloc+0x120/0x120
[  293.713124]  ? mark_held_locks+0x130/0x130
[  293.717375]  ? find_get_entry+0xaae/0x1120
[  293.721632]  ? filemap_map_pages+0x1a20/0x1a20
[  293.726226]  ? zap_class+0x640/0x640
[  293.729965]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.735559]  ? check_preemption_disabled+0x48/0x280
[  293.740585]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  293.746134]  ? should_fail+0x22d/0xd01
[  293.750038]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  293.755203]  ? zap_class+0x640/0x640
[  293.758974]  ? __lock_is_held+0xb5/0x140
[  293.763051]  ? mark_held_locks+0x130/0x130
[  293.767301]  ? lock_release+0xa00/0xa00
[  293.771292]  ? perf_trace_sched_process_exec+0x860/0x860
[  293.776751]  ? xa_load+0x2ba/0x460
[  293.780302]  ? lock_downgrade+0x900/0x900
[  293.784466]  ? __might_sleep+0x95/0x190
[  293.788455]  __alloc_pages_nodemask+0xad8/0xea0
[  293.793143]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  293.798171]  ? __page_cache_alloc+0x191/0x5c0
[  293.802674]  ? xa_load+0x2e1/0x460
[  293.806225]  ? xa_clear_mark+0x40/0x40
[  293.810124]  ? zap_class+0x640/0x640
[  293.813853]  ? zap_class+0x640/0x640
[  293.817572]  ? zap_class+0x640/0x640
[  293.821295]  ? __do_page_cache_readahead+0x663/0x810
[  293.826418]  ? find_held_lock+0x36/0x1c0
[  293.830497]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  293.836050]  alloc_pages_current+0x173/0x350
[  293.840479]  __page_cache_alloc+0x38c/0x5c0
[  293.844808]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  293.849748]  ? kasan_check_read+0x11/0x20
[  293.853963]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.859252]  ? generic_perform_write+0x6a0/0x6a0
[  293.864019]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  293.869567]  ? check_preemption_disabled+0x48/0x280
[  293.874608]  filemap_fault+0x1595/0x25f0
[  293.878693]  ? __lock_page_or_retry+0xa00/0xa00
[  293.883373]  ? mark_held_locks+0x130/0x130
[  293.887631]  ? filemap_map_pages+0xd6b/0x1a20
[  293.892137]  ? lock_downgrade+0x900/0x900
[  293.896294]  ? check_preemption_disabled+0x48/0x280
[  293.901321]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  293.906257]  ? kasan_check_read+0x11/0x20
[  293.910420]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.915710]  ? rcu_softirq_qs+0x20/0x20
[  293.919706]  ? filemap_map_pages+0xd92/0x1a20
[  293.924222]  ? find_get_entries_tag+0x1400/0x1400
[  293.929078]  ? debug_object_destroy+0x2b0/0x2b0
[  293.933758]  ? lock_pi_update_atomic+0x150/0x150
[  293.938521]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.944084]  ? lock_acquire+0x1ed/0x520
[  293.948067]  ? ext4_filemap_fault+0x7a/0xad
[  293.952408]  ? lock_release+0xa00/0xa00
[  293.956441]  ? perf_trace_sched_process_exec+0x860/0x860
[  293.961919]  ? print_usage_bug+0xc0/0xc0
[  293.965995]  ? print_usage_bug+0xc0/0xc0
[  293.970083]  ? down_read+0x8d/0x120
[  293.973716]  ? ext4_filemap_fault+0x7a/0xad
[  293.978048]  ? __down_interruptible+0x700/0x700
[  293.982738]  ext4_filemap_fault+0x82/0xad
[  293.986912]  __do_fault+0x100/0x6b0
[  293.990550]  ? find_held_lock+0x36/0x1c0
[  293.994625]  ? pmd_devmap_trans_unstable+0x220/0x220
[  293.999740]  ? mark_held_locks+0x130/0x130
[  294.003987]  ? mark_held_locks+0x130/0x130
[  294.008236]  ? _raw_spin_unlock_irq+0x27/0x80
[  294.012741]  ? _raw_spin_unlock_irq+0x27/0x80
[  294.017247]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  294.021841]  ? kasan_check_read+0x11/0x20
[  294.026007]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.031561]  __handle_mm_fault+0x3ea0/0x5be0
[  294.035988]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  294.040842]  ? finish_task_switch+0x1f4/0x910
[  294.045344]  ? finish_task_switch+0x1b4/0x910
[  294.049847]  ? __switch_to_asm+0x34/0x70
[  294.053935]  ? preempt_notifier_register+0x200/0x200
[  294.059045]  ? __switch_to_asm+0x34/0x70
[  294.063116]  ? __switch_to_asm+0x34/0x70
[  294.067199]  ? zap_class+0x640/0x640
[  294.070937]  ? zap_class+0x640/0x640
[  294.074788]  ? __x64_sys_futex+0x53e/0x6a0
[  294.079043]  ? find_held_lock+0x36/0x1c0
[  294.083122]  ? handle_mm_fault+0x42a/0xc70
[  294.087369]  ? lock_downgrade+0x900/0x900
[  294.091531]  ? check_preemption_disabled+0x48/0x280
[  294.096560]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  294.101500]  ? kasan_check_read+0x11/0x20
[  294.105658]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.110950]  ? rcu_softirq_qs+0x20/0x20
[  294.114943]  ? trace_hardirqs_off_caller+0x310/0x310
[  294.120061]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.125610]  ? check_preemption_disabled+0x48/0x280
[  294.130644]  handle_mm_fault+0x54f/0xc70
[  294.134717]  ? __handle_mm_fault+0x5be0/0x5be0
[  294.139313]  ? find_vma+0x34/0x190
[  294.142869]  __do_page_fault+0x5e8/0xe60
[  294.146962]  ? trace_hardirqs_off+0xb8/0x310
[  294.151389]  do_page_fault+0xf2/0x7e0
[  294.155210]  ? vmalloc_sync_all+0x30/0x30
[  294.159366]  ? error_entry+0x70/0xd0
[  294.163100]  ? trace_hardirqs_off_caller+0xbb/0x310
[  294.168129]  ? trace_hardirqs_on_caller+0xc0/0x310
[  294.173071]  ? syscall_return_slowpath+0x5e0/0x5e0
[  294.178009]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  294.182861]  ? trace_hardirqs_on_caller+0x310/0x310
[  294.187962]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  294.193433]  ? prepare_exit_to_usermode+0x291/0x3b0
[  294.198461]  ? page_fault+0x8/0x30
[  294.202017]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  294.206870]  ? page_fault+0x8/0x30
[  294.210485]  page_fault+0x1e/0x30
[  294.213992] RIP: 0033:0x40f9c0
[  294.217205] Code: Bad RIP value.
[  294.220589] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  294.225963] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  294.233238] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  294.240516] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  294.247840] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  294.255421] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  294.262725] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  294.262793] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  294.269483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  294.269488] Call Trace:
[  294.269511]  dump_stack+0x244/0x39d
[  294.269529]  ? dump_stack_print_info.cold.1+0x20/0x20
[  294.276098] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  294.285423]  warn_alloc.cold.116+0xb7/0x1bd
[  294.287998] syz-fuzzer cpuset=/ mems_allowed=0
[  294.291630]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  294.320781]  ? lock_downgrade+0x900/0x900
[  294.324953]  ? trace_hardirqs_off+0xb8/0x310
[  294.329378]  ? trace_hardirqs_off+0xb8/0x310
[  294.333806]  __alloc_pages_slowpath+0x2651/0x2de0
[  294.338685]  ? warn_alloc+0x120/0x120
[  294.342502]  ? print_usage_bug+0xc0/0xc0
[  294.346571]  ? warn_alloc+0x120/0x120
[  294.350436]  ? warn_alloc+0x120/0x120
[  294.354251]  ? print_usage_bug+0xc0/0xc0
[  294.358325]  ? print_usage_bug+0xc0/0xc0
[  294.362398]  ? __lock_acquire+0x62f/0x4c20
[  294.366648]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.372197]  ? should_fail+0x22d/0xd01
[  294.376100]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  294.381215]  ? __lock_acquire+0x62f/0x4c20
[  294.385462]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  294.390571]  ? __lock_acquire+0x62f/0x4c20
[  294.394811]  ? should_fail+0x22d/0xd01
[  294.398708]  ? find_held_lock+0x36/0x1c0
[  294.402784]  ? mark_held_locks+0x130/0x130
[  294.407033]  ? mark_held_locks+0x130/0x130
[  294.411277]  ? zap_class+0x640/0x640
[  294.415003]  ? zap_class+0x640/0x640
[  294.418781]  ? print_usage_bug+0xc0/0xc0
[  294.422849]  ? do_raw_spin_unlock+0xa7/0x330
[  294.427268]  ? zap_class+0x640/0x640
[  294.431574]  ? print_usage_bug+0xc0/0xc0
[  294.435643]  ? wq_watchdog_touch+0x9c/0xfe
[  294.439913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.445464]  ? check_preemption_disabled+0x48/0x280
[  294.450501]  ? __lock_is_held+0xb5/0x140
[  294.454578]  __alloc_pages_nodemask+0xad8/0xea0
[  294.459260]  ? zap_class+0x640/0x640
[  294.462988]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  294.468029]  ? find_held_lock+0x36/0x1c0
[  294.472160]  ? ____cache_alloc_node+0x1c7/0x1e0
[  294.476840]  ? lock_downgrade+0x900/0x900
[  294.481011]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.486565]  cache_grow_begin+0xa5/0x8c0
[  294.490636]  ? do_raw_spin_unlock+0xa7/0x330
[  294.495068]  fallback_alloc+0x204/0x2e0
[  294.499059]  ____cache_alloc_node+0x1c7/0x1e0
[  294.503570]  kmem_cache_alloc_node+0xe3/0x730
[  294.508078]  ? ipv6_get_ifaddr+0x42e/0x620
[  294.512335]  __alloc_skb+0x119/0x770
[  294.516061]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.521355]  ? netdev_alloc_frag+0x1f0/0x1f0
[  294.525772]  ? lock_downgrade+0x900/0x900
[  294.529952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.535502]  ? refcount_sub_and_test_checked+0x203/0x310
[  294.540967]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  294.546480]  ? addrconf_rs_timer+0x690/0x690
[  294.550935]  ndisc_alloc_skb+0x144/0x340
[  294.555014]  ndisc_send_rs+0x331/0x6e0
[  294.558937]  addrconf_rs_timer+0x314/0x690
[  294.563398]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.567661]  call_timer_fn+0x272/0x920
[  294.571557]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.575802]  ? process_timeout+0x40/0x40
[  294.579881]  ? __run_timers+0x7da/0xc70
[  294.583908]  ? _raw_spin_unlock_irq+0x27/0x80
[  294.588422]  ? _raw_spin_unlock_irq+0x27/0x80
[  294.592946]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.597193]  ? lockdep_hardirqs_on+0x296/0x5b0
[  294.601785]  ? trace_hardirqs_on+0xbd/0x310
[  294.606119]  ? kasan_check_read+0x11/0x20
[  294.610275]  ? __run_timers+0x7da/0xc70
[  294.614259]  ? trace_hardirqs_off_caller+0x310/0x310
[  294.619375]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.623623]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.627862]  __run_timers+0x7e5/0xc70
[  294.631703]  ? timer_fixup_init+0x70/0x70
[  294.635859]  ? _raw_spin_unlock_irq+0x27/0x80
[  294.640389]  ? _raw_spin_unlock_irq+0x27/0x80
[  294.644921]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  294.649518]  ? trace_hardirqs_on+0xbd/0x310
[  294.653849]  ? kasan_check_read+0x11/0x20
[  294.658012]  ? finish_task_switch+0x1f4/0x910
[  294.662874]  ? trace_hardirqs_off_caller+0x310/0x310
[  294.668010]  ? compat_start_thread+0x80/0x80
[  294.672499]  ? pvclock_read_flags+0x160/0x160
[  294.677004]  ? __switch_to_asm+0x34/0x70
[  294.681076]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.686626]  ? check_preemption_disabled+0x48/0x280
[  294.691705]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  294.697256]  ? rcu_pm_notify+0xc0/0xc0
[  294.701154]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.706700]  ? check_preemption_disabled+0x48/0x280
[  294.711728]  run_timer_softirq+0x52/0xb0
[  294.715797]  ? rcu_read_lock_sched_held+0x14f/0x180
[  294.720823]  __do_softirq+0x308/0xb7e
[  294.724685]  ? trace_hardirqs_on_caller+0xc0/0x310
[  294.729628]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  294.734741]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  294.740201]  ? trace_hardirqs_on+0x310/0x310
[  294.744628]  ? schedule+0x108/0x460
[  294.748277]  ? trace_hardirqs_off+0xb8/0x310
[  294.752697]  ? smpboot_thread_fn+0x68b/0xa00
[  294.757117]  ? trace_hardirqs_on+0x310/0x310
[  294.761542]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.767090]  ? check_preemption_disabled+0x48/0x280
[  294.772122]  ? takeover_tasklets+0xa90/0xa90
[  294.776543]  run_ksoftirqd+0x5e/0x100
[  294.780358]  smpboot_thread_fn+0x68b/0xa00
[  294.784606]  ? sort_range+0x30/0x30
[  294.788242]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  294.793356]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.798931]  ? __kthread_parkme+0xfb/0x1a0
[  294.803183]  ? sort_range+0x30/0x30
[  294.806819]  kthread+0x35a/0x440
[  294.810197]  ? kthread_stop+0x900/0x900
[  294.814181]  ret_from_fork+0x3a/0x50
[  294.817938] warn_alloc_show_mem: 1 callbacks suppressed
[  294.817949] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  294.817951] Mem-Info:
[  294.817982] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  294.817982]  active_file:12 inactive_file:14 isolated_file:0
[  294.817982]  unevictable:0 dirty:0 writeback:0 unstable:0
[  294.817982]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  294.817982]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  294.817982]  free:13757 free_pcp:113 free_cma:0
[  294.823332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  294.830269] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  294.832676] Call Trace:
[  294.865724] 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
[  294.875077]  <IRQ>
[  294.902976] lowmem_reserve[]: 0 2818 6321 6321
[  294.905581]  dump_stack+0x244/0x39d
[  294.931675] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  294.933836]  ? dump_stack_print_info.cold.1+0x20/0x20
[  294.938396] lowmem_reserve[]: 0 0 3503 3503
[  294.942041]  warn_alloc.cold.116+0xb7/0x1bd
[  294.969515] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  294.974706]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  294.979006] lowmem_reserve[]: 0 0 0 0
[  294.983335]  ? lock_downgrade+0x900/0x900
[  295.012388] 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
[  295.017263]  ? trace_hardirqs_off+0xb8/0x310
[  295.021042] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  295.025333]  ? trace_hardirqs_off+0xb8/0x310
[  295.038948] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  295.043384]  __alloc_pages_slowpath+0x2651/0x2de0
[  295.058927] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  295.063357]  ? warn_alloc+0x120/0x120
[  295.077913] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  295.082752]  ? print_usage_bug+0xc0/0xc0
[  295.091830] 4236 total pagecache pages
[  295.095630]  ? warn_alloc+0x120/0x120
[  295.104196] 0 pages in swap cache
[  295.108258]  ? warn_alloc+0x120/0x120
[  295.112138] Swap cache stats: add 0, delete 0, find 0/0
[  295.115965]  ? print_usage_bug+0xc0/0xc0
[  295.119408] Free swap  = 0kB
[  295.123210]  ? kvm_clock_read+0x18/0x30
[  295.128562] Total swap = 0kB
[  295.132634]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  295.135635] 1965979 pages RAM
[  295.139607]  ? print_usage_bug+0xc0/0xc0
[  295.142610] 0 pages HighMem/MovableOnly
[  295.147630]  ? __lock_acquire+0x62f/0x4c20
[  295.150721] 342854 pages reserved
[  295.154784]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  295.158741] 0 pages cma reserved
[  295.162981]  ? should_fail+0x22d/0xd01
[  295.166486] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  295.171997]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.172015]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  295.175504] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  295.179308]  ? __lock_acquire+0x62f/0x4c20
[  295.185784] ksoftirqd/0 cpuset=/ mems_allowed=0
[  295.191064]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  295.220451]  ? __lock_acquire+0x62f/0x4c20
[  295.224695]  ? should_fail+0x22d/0xd01
[  295.228589]  ? rcu_irq_exit+0x1a2/0x390
[  295.232582]  ? mark_held_locks+0x130/0x130
[  295.236836]  ? mark_held_locks+0x130/0x130
[  295.241089]  ? mark_held_locks+0xc7/0x130
[  295.245247]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  295.250273]  ? zap_class+0x640/0x640
[  295.254000]  ? print_usage_bug+0xc0/0xc0
[  295.258079]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.263627]  ? check_preemption_disabled+0x48/0x280
[  295.268663]  ? __lock_is_held+0xb5/0x140
[  295.272743]  __alloc_pages_nodemask+0xad8/0xea0
[  295.277424]  ? zap_class+0x640/0x640
[  295.281153]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  295.286192]  ? find_held_lock+0x36/0x1c0
[  295.290274]  ? ____cache_alloc_node+0x1c7/0x1e0
[  295.294955]  ? lock_downgrade+0x900/0x900
[  295.299125]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.304682]  cache_grow_begin+0xa5/0x8c0
[  295.308752]  ? do_raw_spin_unlock+0xa7/0x330
[  295.313179]  fallback_alloc+0x204/0x2e0
[  295.317171]  ____cache_alloc_node+0x1c7/0x1e0
[  295.321681]  kmem_cache_alloc_node+0xe3/0x730
[  295.326191]  ? ipv6_get_ifaddr+0x42e/0x620
[  295.330447]  __alloc_skb+0x119/0x770
[  295.334173]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.339468]  ? netdev_alloc_frag+0x1f0/0x1f0
[  295.343904]  ? lock_downgrade+0x900/0x900
[  295.348077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.353631]  ? refcount_sub_and_test_checked+0x203/0x310
[  295.359098]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  295.364558]  ? addrconf_rs_timer+0x690/0x690
[  295.368997]  ndisc_alloc_skb+0x144/0x340
[  295.373072]  ndisc_send_rs+0x331/0x6e0
[  295.376977]  addrconf_rs_timer+0x314/0x690
[  295.381228]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  295.385483]  call_timer_fn+0x272/0x920
[  295.389384]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  295.393634]  ? process_timeout+0x40/0x40
[  295.397718]  ? mark_held_locks+0xc7/0x130
[  295.401876]  ? _raw_spin_unlock_irq+0x27/0x80
[  295.406405]  ? _raw_spin_unlock_irq+0x27/0x80
[  295.410937]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  295.415183]  ? lockdep_hardirqs_on+0x296/0x5b0
[  295.419782]  ? trace_hardirqs_on+0xbd/0x310
[  295.424162]  ? kasan_check_read+0x11/0x20
[  295.428317]  ? __run_timers+0x7da/0xc70
[  295.432302]  ? trace_hardirqs_off_caller+0x310/0x310
[  295.437427]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  295.441678]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  295.445945]  __run_timers+0x7e5/0xc70
[  295.449766]  ? timer_fixup_init+0x70/0x70
[  295.453940]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  295.458971]  ? zap_class+0x640/0x640
[  295.462933]  ? print_usage_bug+0xc0/0xc0
[  295.467011]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  295.472221]  ? find_held_lock+0x36/0x1c0
[  295.476300]  ? zap_class+0x640/0x640
[  295.480031]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.485753]  ? check_preemption_disabled+0x48/0x280
[  295.490792]  ? __lock_is_held+0xb5/0x140
[  295.494861]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.500475]  ? check_preemption_disabled+0x48/0x280
[  295.505507]  run_timer_softirq+0x52/0xb0
[  295.509717]  ? rcu_read_lock_sched_held+0x14f/0x180
[  295.514744]  __do_softirq+0x308/0xb7e
[  295.518559]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  295.523063]  ? lock_downgrade+0x900/0x900
[  295.527223]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  295.532345]  ? pvclock_read_flags+0x160/0x160
[  295.536856]  ? lapic_next_event+0x5a/0x90
[  295.541036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.546587]  ? kvm_clock_read+0x18/0x30
[  295.550571]  ? kvm_sched_clock_read+0x9/0x20
[  295.554999]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  295.560548]  ? check_preemption_disabled+0x48/0x280
[  295.565582]  irq_exit+0x17f/0x1c0
[  295.569049]  smp_apic_timer_interrupt+0x1cb/0x760
[  295.573915]  ? smp_call_function_single_interrupt+0x159/0x650
[  295.579813]  ? smp_call_function_single_interrupt+0x650/0x650
[  295.585709]  ? interrupt_entry+0xb5/0xc0
[  295.589786]  ? trace_hardirqs_off_caller+0xbb/0x310
[  295.594813]  ? trace_hardirqs_off_caller+0xbb/0x310
[  295.599849]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  295.604703]  ? trace_hardirqs_on_caller+0x310/0x310
[  295.609728]  ? trace_hardirqs_on_caller+0x310/0x310
[  295.614754]  ? task_prio+0x50/0x50
[  295.618312]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.623863]  ? check_preemption_disabled+0x48/0x280
[  295.628934]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  295.633799]  apic_timer_interrupt+0xf/0x20
[  295.638038]  </IRQ>
[  295.640288] RIP: 0010:dump_stack+0x358/0x39d
[  295.644708] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  295.663666] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  295.671383] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  295.678661] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  295.685943] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  295.693222] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  295.700498] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  295.707803]  ? dump_stack+0x34f/0x39d
[  295.711631]  ? dump_stack_print_info.cold.1+0x20/0x20
[  295.716836]  ? mark_held_locks+0x130/0x130
[  295.721084]  ? mark_held_locks+0x130/0x130
[  295.725333]  dump_header+0x27b/0xf72
[  295.729072]  ? pagefault_out_of_memory+0x197/0x197
[  295.734021]  ? __lock_acquire+0x62f/0x4c20
[  295.738268]  ? percpu_ref_get_many+0x240/0x240
[  295.742862]  ? print_usage_bug+0xc0/0xc0
[  295.746959]  ? zap_class+0x640/0x640
[  295.750687]  ? print_usage_bug+0xc0/0xc0
[  295.754841]  ? print_usage_bug+0xc0/0xc0
[  295.758932]  ? zap_class+0x640/0x640
[  295.762673]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.768223]  ? find_held_lock+0x36/0x1c0
[  295.772308]  ? mark_held_locks+0xc7/0x130
[  295.776466]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  295.781591]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  295.786707]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  295.791304]  ? trace_hardirqs_on+0xbd/0x310
[  295.795634]  ? kasan_check_read+0x11/0x20
[  295.799792]  ? ___ratelimit+0x3b4/0x672
[  295.803779]  ? trace_hardirqs_off_caller+0x310/0x310
[  295.808912]  ? trace_hardirqs_on+0x310/0x310
[  295.813337]  ? lock_downgrade+0x900/0x900
[  295.817499]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  295.822614]  ? ___ratelimit+0x3b9/0x672
[  295.826600]  ? idr_get_free+0xf70/0xf70
[  295.830581]  ? find_held_lock+0x36/0x1c0
[  295.834662]  oom_kill_process.cold.27+0x10/0x903
[  295.839482]  ? zap_class+0x640/0x640
[  295.843206]  ? check_preemption_disabled+0x48/0x280
[  295.848237]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  295.853181]  ? kasan_check_read+0x11/0x20
[  295.857337]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.862633]  ? oom_evaluate_task+0x540/0x540
[  295.867056]  ? find_held_lock+0x36/0x1c0
[  295.871137]  ? out_of_memory+0x974/0x1430
[  295.875295]  ? lock_downgrade+0x900/0x900
[  295.879453]  ? check_preemption_disabled+0x48/0x280
[  295.884483]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  295.889427]  ? kasan_check_read+0x11/0x20
[  295.893587]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.898875]  ? rcu_softirq_qs+0x20/0x20
[  295.902882]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  295.908454]  ? oom_evaluate_task+0x302/0x540
[  295.912942]  out_of_memory+0xa84/0x1430
[  295.916951]  ? oom_killer_disable+0x3a0/0x3a0
[  295.921463]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  295.926413]  ? __ww_mutex_check_waiters+0x160/0x160
[  295.931455]  __alloc_pages_slowpath+0x232c/0x2de0
[  295.936341]  ? warn_alloc+0x120/0x120
[  295.940153]  ? mark_held_locks+0x130/0x130
[  295.944408]  ? find_get_entry+0xaae/0x1120
[  295.948665]  ? filemap_map_pages+0x1a20/0x1a20
[  295.953261]  ? zap_class+0x640/0x640
[  295.956993]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.962541]  ? check_preemption_disabled+0x48/0x280
[  295.967585]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  295.973134]  ? should_fail+0x22d/0xd01
[  295.977038]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  295.982151]  ? zap_class+0x640/0x640
[  295.985917]  ? __lock_is_held+0xb5/0x140
[  295.990002]  ? mark_held_locks+0x130/0x130
[  295.994266]  ? lock_release+0xa00/0xa00
[  295.998249]  ? perf_trace_sched_process_exec+0x860/0x860
[  296.003715]  ? xa_load+0x2ba/0x460
[  296.007274]  ? lock_downgrade+0x900/0x900
[  296.011443]  ? __might_sleep+0x95/0x190
[  296.015436]  __alloc_pages_nodemask+0xad8/0xea0
[  296.020124]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  296.025153]  ? __page_cache_alloc+0x191/0x5c0
[  296.029655]  ? xa_load+0x2e1/0x460
[  296.033205]  ? xa_clear_mark+0x40/0x40
[  296.037104]  ? zap_class+0x640/0x640
[  296.040842]  ? zap_class+0x640/0x640
[  296.044566]  ? zap_class+0x640/0x640
[  296.048289]  ? __do_page_cache_readahead+0x663/0x810
[  296.053413]  ? find_held_lock+0x36/0x1c0
[  296.057489]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  296.063042]  alloc_pages_current+0x173/0x350
[  296.067517]  __page_cache_alloc+0x38c/0x5c0
[  296.071865]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  296.076820]  ? kasan_check_read+0x11/0x20
[  296.080976]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.086268]  ? generic_perform_write+0x6a0/0x6a0
[  296.091037]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.096634]  ? check_preemption_disabled+0x48/0x280
[  296.102017]  filemap_fault+0x1595/0x25f0
[  296.106103]  ? __lock_page_or_retry+0xa00/0xa00
[  296.110784]  ? mark_held_locks+0x130/0x130
[  296.115038]  ? filemap_map_pages+0xd6b/0x1a20
[  296.119545]  ? lock_downgrade+0x900/0x900
[  296.123708]  ? check_preemption_disabled+0x48/0x280
[  296.128735]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  296.133671]  ? kasan_check_read+0x11/0x20
[  296.137835]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.143125]  ? rcu_softirq_qs+0x20/0x20
[  296.147125]  ? filemap_map_pages+0xd92/0x1a20
[  296.151647]  ? find_get_entries_tag+0x1400/0x1400
[  296.156505]  ? debug_object_destroy+0x2b0/0x2b0
[  296.161185]  ? lock_pi_update_atomic+0x150/0x150
[  296.165952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.171511]  ? lock_acquire+0x1ed/0x520
[  296.175497]  ? ext4_filemap_fault+0x7a/0xad
[  296.179835]  ? lock_release+0xa00/0xa00
[  296.183819]  ? perf_trace_sched_process_exec+0x860/0x860
[  296.189282]  ? print_usage_bug+0xc0/0xc0
[  296.193352]  ? print_usage_bug+0xc0/0xc0
[  296.197439]  ? down_read+0x8d/0x120
[  296.201121]  ? ext4_filemap_fault+0x7a/0xad
[  296.205455]  ? __down_interruptible+0x700/0x700
[  296.210142]  ext4_filemap_fault+0x82/0xad
[  296.214392]  __do_fault+0x100/0x6b0
[  296.218035]  ? find_held_lock+0x36/0x1c0
[  296.222109]  ? pmd_devmap_trans_unstable+0x220/0x220
[  296.227226]  ? mark_held_locks+0x130/0x130
[  296.231471]  ? mark_held_locks+0x130/0x130
[  296.235715]  ? _raw_spin_unlock_irq+0x27/0x80
[  296.240221]  ? _raw_spin_unlock_irq+0x27/0x80
[  296.244730]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  296.249323]  ? kasan_check_read+0x11/0x20
[  296.253481]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.259037]  __handle_mm_fault+0x3ea0/0x5be0
[  296.263463]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  296.268315]  ? finish_task_switch+0x1f4/0x910
[  296.272818]  ? finish_task_switch+0x1b4/0x910
[  296.277321]  ? __switch_to_asm+0x34/0x70
[  296.281410]  ? preempt_notifier_register+0x200/0x200
[  296.286519]  ? __switch_to_asm+0x34/0x70
[  296.290591]  ? __switch_to_asm+0x34/0x70
[  296.294677]  ? zap_class+0x640/0x640
[  296.298403]  ? zap_class+0x640/0x640
[  296.302127]  ? __x64_sys_futex+0x53e/0x6a0
[  296.306378]  ? find_held_lock+0x36/0x1c0
[  296.310462]  ? handle_mm_fault+0x42a/0xc70
[  296.314711]  ? lock_downgrade+0x900/0x900
[  296.318869]  ? check_preemption_disabled+0x48/0x280
[  296.323930]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  296.328868]  ? kasan_check_read+0x11/0x20
[  296.333041]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.338329]  ? rcu_softirq_qs+0x20/0x20
[  296.342378]  ? trace_hardirqs_off_caller+0x310/0x310
[  296.347515]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.353077]  ? check_preemption_disabled+0x48/0x280
[  296.358109]  handle_mm_fault+0x54f/0xc70
[  296.362184]  ? __handle_mm_fault+0x5be0/0x5be0
[  296.366779]  ? find_vma+0x34/0x190
[  296.370337]  __do_page_fault+0x5e8/0xe60
[  296.374411]  ? trace_hardirqs_off+0xb8/0x310
[  296.378839]  do_page_fault+0xf2/0x7e0
[  296.382649]  ? vmalloc_sync_all+0x30/0x30
[  296.386808]  ? error_entry+0x70/0xd0
[  296.390531]  ? trace_hardirqs_off_caller+0xbb/0x310
[  296.395554]  ? trace_hardirqs_on_caller+0xc0/0x310
[  296.400491]  ? syscall_return_slowpath+0x5e0/0x5e0
[  296.405436]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  296.410288]  ? trace_hardirqs_on_caller+0x310/0x310
[  296.415311]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  296.420774]  ? prepare_exit_to_usermode+0x291/0x3b0
[  296.425797]  ? page_fault+0x8/0x30
[  296.429354]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  296.434427]  ? page_fault+0x8/0x30
[  296.437983]  page_fault+0x1e/0x30
[  296.441445] RIP: 0033:0x40f9c0
[  296.444657] Code: Bad RIP value.
[  296.448027] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  296.453405] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  296.460684] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  296.467963] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  296.475244] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  296.482526] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  296.489828] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  296.489914] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  296.496591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  296.496596] Call Trace:
[  296.496619]  dump_stack+0x244/0x39d
[  296.496638]  ? dump_stack_print_info.cold.1+0x20/0x20
[  296.503179] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  296.512491]  warn_alloc.cold.116+0xb7/0x1bd
[  296.515053] syz-fuzzer cpuset=/ mems_allowed=0
[  296.518685]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  296.547833]  ? lock_downgrade+0x900/0x900
[  296.552000]  ? trace_hardirqs_off+0xb8/0x310
[  296.556423]  ? trace_hardirqs_off+0xb8/0x310
[  296.560855]  __alloc_pages_slowpath+0x2651/0x2de0
[  296.566013]  ? warn_alloc+0x120/0x120
[  296.569829]  ? print_usage_bug+0xc0/0xc0
[  296.573923]  ? warn_alloc+0x120/0x120
[  296.577738]  ? warn_alloc+0x120/0x120
[  296.581552]  ? print_usage_bug+0xc0/0xc0
[  296.585626]  ? print_usage_bug+0xc0/0xc0
[  296.589699]  ? __lock_acquire+0x62f/0x4c20
[  296.593954]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.599501]  ? should_fail+0x22d/0xd01
[  296.603403]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  296.608518]  ? __lock_acquire+0x62f/0x4c20
[  296.612771]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  296.617881]  ? __lock_acquire+0x62f/0x4c20
[  296.622152]  ? should_fail+0x22d/0xd01
[  296.626074]  ? find_held_lock+0x36/0x1c0
[  296.630168]  ? mark_held_locks+0x130/0x130
[  296.634416]  ? mark_held_locks+0x130/0x130
[  296.638659]  ? zap_class+0x640/0x640
[  296.642390]  ? mark_held_locks+0xc7/0x130
[  296.646546]  ? do_raw_spin_unlock+0xa7/0x330
[  296.650963]  ? zap_class+0x640/0x640
[  296.654687]  ? print_usage_bug+0xc0/0xc0
[  296.658764]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.664311]  ? check_preemption_disabled+0x48/0x280
[  296.669348]  ? __lock_is_held+0xb5/0x140
[  296.673426]  __alloc_pages_nodemask+0xad8/0xea0
[  296.678103]  ? zap_class+0x640/0x640
[  296.681831]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  296.686869]  ? find_held_lock+0x36/0x1c0
[  296.690975]  ? ____cache_alloc_node+0x1c7/0x1e0
[  296.695653]  ? lock_downgrade+0x900/0x900
[  296.699819]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.705372]  cache_grow_begin+0xa5/0x8c0
[  296.709442]  ? do_raw_spin_unlock+0xa7/0x330
[  296.713867]  fallback_alloc+0x204/0x2e0
[  296.717877]  ____cache_alloc_node+0x1c7/0x1e0
[  296.722411]  kmem_cache_alloc_node+0xe3/0x730
[  296.726937]  ? ipv6_get_ifaddr+0x42e/0x620
[  296.731192]  __alloc_skb+0x119/0x770
[  296.734932]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.740308]  ? netdev_alloc_frag+0x1f0/0x1f0
[  296.744725]  ? lock_downgrade+0x900/0x900
[  296.748909]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.754462]  ? refcount_sub_and_test_checked+0x203/0x310
[  296.759946]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  296.765407]  ? addrconf_rs_timer+0x690/0x690
[  296.769839]  ndisc_alloc_skb+0x144/0x340
[  296.773933]  ndisc_send_rs+0x331/0x6e0
[  296.777838]  addrconf_rs_timer+0x314/0x690
[  296.782093]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.786351]  call_timer_fn+0x272/0x920
[  296.790299]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.794543]  ? process_timeout+0x40/0x40
[  296.798622]  ? __run_timers+0x7da/0xc70
[  296.802607]  ? _raw_spin_unlock_irq+0x27/0x80
[  296.807108]  ? _raw_spin_unlock_irq+0x27/0x80
[  296.811609]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.815851]  ? lockdep_hardirqs_on+0x296/0x5b0
[  296.820446]  ? trace_hardirqs_on+0xbd/0x310
[  296.824779]  ? kasan_check_read+0x11/0x20
[  296.828951]  ? __run_timers+0x7da/0xc70
[  296.832944]  ? trace_hardirqs_off_caller+0x310/0x310
[  296.838065]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.842316]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.846558]  __run_timers+0x7e5/0xc70
[  296.850381]  ? timer_fixup_init+0x70/0x70
[  296.854541]  ? _raw_spin_unlock_irq+0x27/0x80
[  296.859045]  ? _raw_spin_unlock_irq+0x27/0x80
[  296.863552]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  296.868148]  ? trace_hardirqs_on+0xbd/0x310
[  296.872481]  ? kasan_check_read+0x11/0x20
[  296.876641]  ? finish_task_switch+0x1f4/0x910
[  296.881147]  ? trace_hardirqs_off_caller+0x310/0x310
[  296.886258]  ? compat_start_thread+0x80/0x80
[  296.890698]  ? pvclock_read_flags+0x160/0x160
[  296.895199]  ? __switch_to_asm+0x34/0x70
[  296.899273]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.904823]  ? check_preemption_disabled+0x48/0x280
[  296.909863]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  296.915434]  ? rcu_pm_notify+0xc0/0xc0
[  296.919332]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.924882]  ? check_preemption_disabled+0x48/0x280
[  296.929964]  run_timer_softirq+0x52/0xb0
[  296.934044]  ? rcu_read_lock_sched_held+0x14f/0x180
[  296.939071]  __do_softirq+0x308/0xb7e
[  296.942911]  ? trace_hardirqs_on_caller+0xc0/0x310
[  296.947857]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  296.952988]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  296.958449]  ? trace_hardirqs_on+0x310/0x310
[  296.962879]  ? schedule+0x108/0x460
[  296.966548]  ? trace_hardirqs_off+0xb8/0x310
[  296.970971]  ? smpboot_thread_fn+0x68b/0xa00
[  296.975390]  ? trace_hardirqs_on+0x310/0x310
[  296.979809]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.985357]  ? check_preemption_disabled+0x48/0x280
[  296.990386]  ? takeover_tasklets+0xa90/0xa90
[  296.994805]  run_ksoftirqd+0x5e/0x100
[  296.998622]  smpboot_thread_fn+0x68b/0xa00
[  297.002867]  ? sort_range+0x30/0x30
[  297.006521]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  297.011631]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.017176]  ? __kthread_parkme+0xfb/0x1a0
[  297.021421]  ? sort_range+0x30/0x30
[  297.025056]  kthread+0x35a/0x440
[  297.028436]  ? kthread_stop+0x900/0x900
[  297.032468]  ret_from_fork+0x3a/0x50
[  297.036209] warn_alloc_show_mem: 1 callbacks suppressed
[  297.036221] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  297.036223] Mem-Info:
[  297.036255] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  297.036255]  active_file:12 inactive_file:14 isolated_file:0
[  297.036255]  unevictable:0 dirty:0 writeback:0 unstable:0
[  297.036255]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  297.036255]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  297.036255]  free:13757 free_pcp:113 free_cma:0
[  297.041595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  297.041603] Call Trace:
[  297.048545] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  297.050964]  <IRQ>
[  297.084015] 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
[  297.093387]  dump_stack+0x244/0x39d
[  297.095943] lowmem_reserve[]: 0 2818 6321 6321
[  297.123805]  ? dump_stack_print_info.cold.1+0x20/0x20
[  297.125943] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  297.152063]  warn_alloc.cold.116+0xb7/0x1bd
[  297.155668] lowmem_reserve[]: 0 0 3503 3503
[  297.160253]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  297.165425] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  297.192954]  ? lock_downgrade+0x900/0x900
[  297.197258] lowmem_reserve[]: 0 0 0 0
[  297.201589]  ? trace_hardirqs_off+0xb8/0x310
[  297.206453] 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
[  297.235519]  ? trace_hardirqs_off+0xb8/0x310
[  297.239701] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  297.243534]  __alloc_pages_slowpath+0x2651/0x2de0
[  297.247938] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  297.261488]  ? warn_alloc+0x120/0x120
[  297.265864] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  297.281379]  ? print_usage_bug+0xc0/0xc0
[  297.286215] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  297.300774]  ? warn_alloc+0x120/0x120
[  297.304584] 4236 total pagecache pages
[  297.313428]  ? warn_alloc+0x120/0x120
[  297.317478] 0 pages in swap cache
[  297.326050]  ? print_usage_bug+0xc0/0xc0
[  297.329830] Swap cache stats: add 0, delete 0, find 0/0
[  297.329839] Free swap  = 0kB
[  297.333726]  ? print_usage_bug+0xc0/0xc0
[  297.337511] Total swap = 0kB
[  297.340969]  ? __lock_acquire+0x62f/0x4c20
[  297.345018] 1965979 pages RAM
[  297.350386]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.353387] 0 pages HighMem/MovableOnly
[  297.357454]  ? should_fail+0x22d/0xd01
[  297.360454] 342854 pages reserved
[  297.364691]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  297.367780] 0 pages cma reserved
[  297.373321]  ? __lock_acquire+0x62f/0x4c20
[  297.377350] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  297.381170]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  297.384702] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  297.389714]  ? __lock_acquire+0x62f/0x4c20
[  297.393065] ksoftirqd/0 cpuset=/ mems_allowed=0
[  297.397304]  ? should_fail+0x22d/0xd01
[  297.438394]  ? find_held_lock+0x36/0x1c0
[  297.442479]  ? mark_held_locks+0x130/0x130
[  297.446731]  ? mark_held_locks+0x130/0x130
[  297.450982]  ? zap_class+0x640/0x640
[  297.454706]  ? zap_class+0x640/0x640
[  297.458433]  ? print_usage_bug+0xc0/0xc0
[  297.462505]  ? do_raw_spin_unlock+0xa7/0x330
[  297.466936]  ? zap_class+0x640/0x640
[  297.470658]  ? print_usage_bug+0xc0/0xc0
[  297.474729]  ? wq_watchdog_touch+0x9c/0xfe
[  297.478983]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.484532]  ? check_preemption_disabled+0x48/0x280
[  297.489566]  ? __lock_is_held+0xb5/0x140
[  297.493642]  __alloc_pages_nodemask+0xad8/0xea0
[  297.498324]  ? zap_class+0x640/0x640
[  297.502052]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  297.507094]  ? find_held_lock+0x36/0x1c0
[  297.511177]  ? ____cache_alloc_node+0x1c7/0x1e0
[  297.515858]  ? lock_downgrade+0x900/0x900
[  297.520039]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.525600]  cache_grow_begin+0xa5/0x8c0
[  297.529672]  ? do_raw_spin_unlock+0xa7/0x330
[  297.534100]  fallback_alloc+0x204/0x2e0
[  297.538095]  ____cache_alloc_node+0x1c7/0x1e0
[  297.542605]  kmem_cache_alloc_node+0xe3/0x730
[  297.547111]  ? ipv6_get_ifaddr+0x42e/0x620
[  297.551366]  __alloc_skb+0x119/0x770
[  297.555095]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  297.560388]  ? netdev_alloc_frag+0x1f0/0x1f0
[  297.564812]  ? lock_downgrade+0x900/0x900
[  297.568978]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.574527]  ? refcount_sub_and_test_checked+0x203/0x310
[  297.579994]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  297.585457]  ? addrconf_rs_timer+0x690/0x690
[  297.589885]  ndisc_alloc_skb+0x144/0x340
[  297.593988]  ndisc_send_rs+0x331/0x6e0
[  297.597911]  addrconf_rs_timer+0x314/0x690
[  297.602163]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.606421]  call_timer_fn+0x272/0x920
[  297.610317]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.614561]  ? process_timeout+0x40/0x40
[  297.618641]  ? mark_held_locks+0xc7/0x130
[  297.622800]  ? _raw_spin_unlock_irq+0x27/0x80
[  297.627307]  ? _raw_spin_unlock_irq+0x27/0x80
[  297.631812]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.636058]  ? lockdep_hardirqs_on+0x296/0x5b0
[  297.640660]  ? trace_hardirqs_on+0xbd/0x310
[  297.644997]  ? kasan_check_read+0x11/0x20
[  297.649155]  ? __run_timers+0x7da/0xc70
[  297.653141]  ? trace_hardirqs_off_caller+0x310/0x310
[  297.658256]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.662509]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.666754]  __run_timers+0x7e5/0xc70
[  297.670573]  ? timer_fixup_init+0x70/0x70
[  297.674735]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  297.679762]  ? zap_class+0x640/0x640
[  297.683500]  ? print_usage_bug+0xc0/0xc0
[  297.687572]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  297.692784]  ? find_held_lock+0x36/0x1c0
[  297.696861]  ? zap_class+0x640/0x640
[  297.700608]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.706158]  ? check_preemption_disabled+0x48/0x280
[  297.711192]  ? __lock_is_held+0xb5/0x140
[  297.715265]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.720812]  ? check_preemption_disabled+0x48/0x280
[  297.725846]  run_timer_softirq+0x52/0xb0
[  297.729931]  ? rcu_read_lock_sched_held+0x14f/0x180
[  297.734960]  __do_softirq+0x308/0xb7e
[  297.738774]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  297.743277]  ? lock_downgrade+0x900/0x900
[  297.747440]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  297.752564]  ? pvclock_read_flags+0x160/0x160
[  297.757075]  ? lapic_next_event+0x5a/0x90
[  297.761236]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.766788]  ? kvm_clock_read+0x18/0x30
[  297.770778]  ? kvm_sched_clock_read+0x9/0x20
[  297.775202]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.780752]  ? check_preemption_disabled+0x48/0x280
[  297.785788]  irq_exit+0x17f/0x1c0
[  297.789256]  smp_apic_timer_interrupt+0x1cb/0x760
[  297.794112]  ? smp_call_function_single_interrupt+0x159/0x650
[  297.800010]  ? smp_call_function_single_interrupt+0x650/0x650
[  297.805922]  ? interrupt_entry+0xb5/0xc0
[  297.809998]  ? trace_hardirqs_off_caller+0xbb/0x310
[  297.815027]  ? trace_hardirqs_off_caller+0xbb/0x310
[  297.820059]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  297.824928]  ? trace_hardirqs_on_caller+0x310/0x310
[  297.829953]  ? trace_hardirqs_on_caller+0x310/0x310
[  297.834980]  ? task_prio+0x50/0x50
[  297.838530]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.844082]  ? check_preemption_disabled+0x48/0x280
[  297.849113]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  297.853975]  apic_timer_interrupt+0xf/0x20
[  297.858211]  </IRQ>
[  297.860459] RIP: 0010:dump_stack+0x358/0x39d
[  297.864879] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  297.885282] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  297.893002] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  297.900299] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  297.907573] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  297.914852] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  297.922135] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  297.929435]  ? dump_stack+0x34f/0x39d
[  297.933259]  ? dump_stack_print_info.cold.1+0x20/0x20
[  297.938463]  ? mark_held_locks+0x130/0x130
[  297.942706]  ? mark_held_locks+0x130/0x130
[  297.946962]  dump_header+0x27b/0xf72
[  297.950698]  ? pagefault_out_of_memory+0x197/0x197
[  297.955648]  ? __lock_acquire+0x62f/0x4c20
[  297.959911]  ? percpu_ref_get_many+0x240/0x240
[  297.964507]  ? print_usage_bug+0xc0/0xc0
[  297.968584]  ? zap_class+0x640/0x640
[  297.972308]  ? print_usage_bug+0xc0/0xc0
[  297.976378]  ? print_usage_bug+0xc0/0xc0
[  297.980457]  ? zap_class+0x640/0x640
[  297.984183]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.989737]  ? find_held_lock+0x36/0x1c0
[  297.993819]  ? mark_held_locks+0xc7/0x130
[  297.997979]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  298.003090]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  298.008203]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  298.012795]  ? trace_hardirqs_on+0xbd/0x310
[  298.017125]  ? kasan_check_read+0x11/0x20
[  298.021280]  ? ___ratelimit+0x3b4/0x672
[  298.025268]  ? trace_hardirqs_off_caller+0x310/0x310
[  298.030381]  ? trace_hardirqs_on+0x310/0x310
[  298.034804]  ? lock_downgrade+0x900/0x900
[  298.038967]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  298.044081]  ? ___ratelimit+0x3b9/0x672
[  298.048067]  ? idr_get_free+0xf70/0xf70
[  298.052054]  ? find_held_lock+0x36/0x1c0
[  298.056134]  oom_kill_process.cold.27+0x10/0x903
[  298.060916]  ? zap_class+0x640/0x640
[  298.064645]  ? check_preemption_disabled+0x48/0x280
[  298.069677]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  298.074613]  ? kasan_check_read+0x11/0x20
[  298.078769]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.084061]  ? oom_evaluate_task+0x540/0x540
[  298.088482]  ? find_held_lock+0x36/0x1c0
[  298.092578]  ? out_of_memory+0x974/0x1430
[  298.096738]  ? lock_downgrade+0x900/0x900
[  298.100915]  ? check_preemption_disabled+0x48/0x280
[  298.106002]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  298.110950]  ? kasan_check_read+0x11/0x20
[  298.115107]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.120395]  ? rcu_softirq_qs+0x20/0x20
[  298.124392]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.129950]  ? oom_evaluate_task+0x302/0x540
[  298.134374]  out_of_memory+0xa84/0x1430
[  298.138372]  ? oom_killer_disable+0x3a0/0x3a0
[  298.142879]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  298.147843]  ? __ww_mutex_check_waiters+0x160/0x160
[  298.152881]  __alloc_pages_slowpath+0x232c/0x2de0
[  298.157781]  ? warn_alloc+0x120/0x120
[  298.161589]  ? mark_held_locks+0x130/0x130
[  298.165839]  ? find_get_entry+0xaae/0x1120
[  298.170093]  ? filemap_map_pages+0x1a20/0x1a20
[  298.174692]  ? zap_class+0x640/0x640
[  298.178426]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.183977]  ? check_preemption_disabled+0x48/0x280
[  298.189004]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.194552]  ? should_fail+0x22d/0xd01
[  298.198453]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  298.203567]  ? zap_class+0x640/0x640
[  298.207315]  ? __lock_is_held+0xb5/0x140
[  298.211395]  ? mark_held_locks+0x130/0x130
[  298.215648]  ? lock_release+0xa00/0xa00
[  298.219634]  ? perf_trace_sched_process_exec+0x860/0x860
[  298.225097]  ? xa_load+0x2ba/0x460
[  298.228648]  ? lock_downgrade+0x900/0x900
[  298.232810]  ? __might_sleep+0x95/0x190
[  298.236803]  __alloc_pages_nodemask+0xad8/0xea0
[  298.241487]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  298.246516]  ? __page_cache_alloc+0x191/0x5c0
[  298.251019]  ? xa_load+0x2e1/0x460
[  298.254570]  ? xa_clear_mark+0x40/0x40
[  298.258472]  ? zap_class+0x640/0x640
[  298.262204]  ? zap_class+0x640/0x640
[  298.266018]  ? zap_class+0x640/0x640
[  298.269742]  ? __do_page_cache_readahead+0x663/0x810
[  298.274863]  ? find_held_lock+0x36/0x1c0
[  298.278970]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  298.284523]  alloc_pages_current+0x173/0x350
[  298.288957]  __page_cache_alloc+0x38c/0x5c0
[  298.293285]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  298.298229]  ? kasan_check_read+0x11/0x20
[  298.302387]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.307678]  ? generic_perform_write+0x6a0/0x6a0
[  298.312449]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.318003]  ? check_preemption_disabled+0x48/0x280
[  298.323036]  filemap_fault+0x1595/0x25f0
[  298.327119]  ? __lock_page_or_retry+0xa00/0xa00
[  298.331800]  ? mark_held_locks+0x130/0x130
[  298.336054]  ? filemap_map_pages+0xd6b/0x1a20
[  298.340559]  ? lock_downgrade+0x900/0x900
[  298.344717]  ? check_preemption_disabled+0x48/0x280
[  298.349745]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  298.354684]  ? kasan_check_read+0x11/0x20
[  298.358839]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.364123]  ? rcu_softirq_qs+0x20/0x20
[  298.368117]  ? filemap_map_pages+0xd92/0x1a20
[  298.372636]  ? find_get_entries_tag+0x1400/0x1400
[  298.377487]  ? debug_object_destroy+0x2b0/0x2b0
[  298.382167]  ? lock_pi_update_atomic+0x150/0x150
[  298.386926]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.392481]  ? lock_acquire+0x1ed/0x520
[  298.396455]  ? ext4_filemap_fault+0x7a/0xad
[  298.400782]  ? lock_release+0xa00/0xa00
[  298.404756]  ? perf_trace_sched_process_exec+0x860/0x860
[  298.410209]  ? print_usage_bug+0xc0/0xc0
[  298.414273]  ? print_usage_bug+0xc0/0xc0
[  298.418352]  ? down_read+0x8d/0x120
[  298.421979]  ? ext4_filemap_fault+0x7a/0xad
[  298.426303]  ? __down_interruptible+0x700/0x700
[  298.431203]  ext4_filemap_fault+0x82/0xad
[  298.435356]  __do_fault+0x100/0x6b0
[  298.438983]  ? find_held_lock+0x36/0x1c0
[  298.443048]  ? pmd_devmap_trans_unstable+0x220/0x220
[  298.448158]  ? mark_held_locks+0x130/0x130
[  298.452406]  ? mark_held_locks+0x130/0x130
[  298.456643]  ? _raw_spin_unlock_irq+0x27/0x80
[  298.461137]  ? _raw_spin_unlock_irq+0x27/0x80
[  298.465634]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  298.470225]  ? kasan_check_read+0x11/0x20
[  298.474374]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.479944]  __handle_mm_fault+0x3ea0/0x5be0
[  298.484367]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  298.489390]  ? finish_task_switch+0x1f4/0x910
[  298.493902]  ? finish_task_switch+0x1b4/0x910
[  298.498403]  ? __switch_to_asm+0x34/0x70
[  298.502471]  ? preempt_notifier_register+0x200/0x200
[  298.507572]  ? __switch_to_asm+0x34/0x70
[  298.511632]  ? __switch_to_asm+0x34/0x70
[  298.515710]  ? zap_class+0x640/0x640
[  298.519429]  ? zap_class+0x640/0x640
[  298.523159]  ? __x64_sys_futex+0x53e/0x6a0
[  298.527404]  ? find_held_lock+0x36/0x1c0
[  298.531473]  ? handle_mm_fault+0x42a/0xc70
[  298.535727]  ? lock_downgrade+0x900/0x900
[  298.539877]  ? check_preemption_disabled+0x48/0x280
[  298.544912]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  298.549848]  ? kasan_check_read+0x11/0x20
[  298.553998]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.559279]  ? rcu_softirq_qs+0x20/0x20
[  298.563786]  ? trace_hardirqs_off_caller+0x310/0x310
[  298.568903]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.574448]  ? check_preemption_disabled+0x48/0x280
[  298.579480]  handle_mm_fault+0x54f/0xc70
[  298.583547]  ? __handle_mm_fault+0x5be0/0x5be0
[  298.588135]  ? find_vma+0x34/0x190
[  298.591694]  __do_page_fault+0x5e8/0xe60
[  298.595754]  ? trace_hardirqs_off+0xb8/0x310
[  298.600187]  do_page_fault+0xf2/0x7e0
[  298.604008]  ? vmalloc_sync_all+0x30/0x30
[  298.608158]  ? error_entry+0x70/0xd0
[  298.611877]  ? trace_hardirqs_off_caller+0xbb/0x310
[  298.616906]  ? trace_hardirqs_on_caller+0xc0/0x310
[  298.621851]  ? syscall_return_slowpath+0x5e0/0x5e0
[  298.626776]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  298.631622]  ? trace_hardirqs_on_caller+0x310/0x310
[  298.636649]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  298.642116]  ? prepare_exit_to_usermode+0x291/0x3b0
[  298.647134]  ? page_fault+0x8/0x30
[  298.650682]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  298.655541]  ? page_fault+0x8/0x30
[  298.659101]  page_fault+0x1e/0x30
[  298.662551] RIP: 0033:0x40f9c0
[  298.665759] Code: Bad RIP value.
[  298.669122] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  298.674503] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  298.681785] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  298.689052] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  298.696339] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  298.703632] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  298.710962] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  298.711059] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  298.717745] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  298.717750] Call Trace:
[  298.717785]  dump_stack+0x244/0x39d
[  298.717808]  ? dump_stack_print_info.cold.1+0x20/0x20
[  298.724335] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  298.733636]  warn_alloc.cold.116+0xb7/0x1bd
[  298.736277] syz-fuzzer cpuset=/ mems_allowed=0
[  298.739910]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  298.768994]  ? lock_downgrade+0x900/0x900
[  298.773152]  ? trace_hardirqs_off+0xb8/0x310
[  298.777571]  ? trace_hardirqs_off+0xb8/0x310
[  298.781989]  __alloc_pages_slowpath+0x2651/0x2de0
[  298.786912]  ? warn_alloc+0x120/0x120
[  298.790713]  ? print_usage_bug+0xc0/0xc0
[  298.794779]  ? warn_alloc+0x120/0x120
[  298.798583]  ? warn_alloc+0x120/0x120
[  298.802384]  ? print_usage_bug+0xc0/0xc0
[  298.806494]  ? print_usage_bug+0xc0/0xc0
[  298.810591]  ? __lock_acquire+0x62f/0x4c20
[  298.814834]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.820377]  ? should_fail+0x22d/0xd01
[  298.824269]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  298.829371]  ? __lock_acquire+0x62f/0x4c20
[  298.833611]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  298.838724]  ? __lock_acquire+0x62f/0x4c20
[  298.842987]  ? should_fail+0x22d/0xd01
[  298.846875]  ? find_held_lock+0x36/0x1c0
[  298.850970]  ? mark_held_locks+0x130/0x130
[  298.855209]  ? mark_held_locks+0x130/0x130
[  298.859441]  ? zap_class+0x640/0x640
[  298.863156]  ? mark_held_locks+0xc7/0x130
[  298.867304]  ? do_raw_spin_unlock+0xa7/0x330
[  298.871730]  ? zap_class+0x640/0x640
[  298.875457]  ? print_usage_bug+0xc0/0xc0
[  298.879522]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.885067]  ? check_preemption_disabled+0x48/0x280
[  298.890097]  ? __lock_is_held+0xb5/0x140
[  298.894165]  __alloc_pages_nodemask+0xad8/0xea0
[  298.898836]  ? zap_class+0x640/0x640
[  298.902557]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  298.907584]  ? find_held_lock+0x36/0x1c0
[  298.911659]  ? ____cache_alloc_node+0x1c7/0x1e0
[  298.916347]  ? lock_downgrade+0x900/0x900
[  298.920502]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.926044]  cache_grow_begin+0xa5/0x8c0
[  298.930124]  ? do_raw_spin_unlock+0xa7/0x330
[  298.934536]  fallback_alloc+0x204/0x2e0
[  298.938517]  ____cache_alloc_node+0x1c7/0x1e0
[  298.943017]  kmem_cache_alloc_node+0xe3/0x730
[  298.947529]  ? ipv6_get_ifaddr+0x42e/0x620
[  298.951771]  __alloc_skb+0x119/0x770
[  298.955499]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.960795]  ? netdev_alloc_frag+0x1f0/0x1f0
[  298.965204]  ? lock_downgrade+0x900/0x900
[  298.969361]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.974934]  ? refcount_sub_and_test_checked+0x203/0x310
[  298.980386]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  298.985836]  ? addrconf_rs_timer+0x690/0x690
[  298.990271]  ndisc_alloc_skb+0x144/0x340
[  298.994336]  ndisc_send_rs+0x331/0x6e0
[  298.998226]  addrconf_rs_timer+0x314/0x690
[  299.002511]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.006773]  call_timer_fn+0x272/0x920
[  299.010676]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.014928]  ? process_timeout+0x40/0x40
[  299.018995]  ? __run_timers+0x7da/0xc70
[  299.022973]  ? _raw_spin_unlock_irq+0x27/0x80
[  299.027470]  ? _raw_spin_unlock_irq+0x27/0x80
[  299.031968]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.036203]  ? lockdep_hardirqs_on+0x296/0x5b0
[  299.040789]  ? trace_hardirqs_on+0xbd/0x310
[  299.045110]  ? kasan_check_read+0x11/0x20
[  299.049258]  ? __run_timers+0x7da/0xc70
[  299.053238]  ? trace_hardirqs_off_caller+0x310/0x310
[  299.058385]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.062622]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.066857]  __run_timers+0x7e5/0xc70
[  299.070691]  ? timer_fixup_init+0x70/0x70
[  299.074840]  ? _raw_spin_unlock_irq+0x27/0x80
[  299.079332]  ? _raw_spin_unlock_irq+0x27/0x80
[  299.083833]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  299.088416]  ? trace_hardirqs_on+0xbd/0x310
[  299.092742]  ? kasan_check_read+0x11/0x20
[  299.096906]  ? finish_task_switch+0x1f4/0x910
[  299.101404]  ? trace_hardirqs_off_caller+0x310/0x310
[  299.106509]  ? compat_start_thread+0x80/0x80
[  299.110948]  ? pvclock_read_flags+0x160/0x160
[  299.115444]  ? __switch_to_asm+0x34/0x70
[  299.119519]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.125066]  ? check_preemption_disabled+0x48/0x280
[  299.130094]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  299.135649]  ? rcu_pm_notify+0xc0/0xc0
[  299.139541]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.145080]  ? check_preemption_disabled+0x48/0x280
[  299.150106]  run_timer_softirq+0x52/0xb0
[  299.154172]  ? rcu_read_lock_sched_held+0x14f/0x180
[  299.159189]  __do_softirq+0x308/0xb7e
[  299.162997]  ? trace_hardirqs_on_caller+0xc0/0x310
[  299.167978]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  299.173080]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  299.178534]  ? trace_hardirqs_on+0x310/0x310
[  299.182951]  ? schedule+0x108/0x460
[  299.186601]  ? trace_hardirqs_off+0xb8/0x310
[  299.191028]  ? smpboot_thread_fn+0x68b/0xa00
[  299.195460]  ? trace_hardirqs_on+0x310/0x310
[  299.199871]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.205426]  ? check_preemption_disabled+0x48/0x280
[  299.210455]  ? takeover_tasklets+0xa90/0xa90
[  299.214868]  run_ksoftirqd+0x5e/0x100
[  299.218684]  smpboot_thread_fn+0x68b/0xa00
[  299.222931]  ? sort_range+0x30/0x30
[  299.226562]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  299.231669]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.237210]  ? __kthread_parkme+0xfb/0x1a0
[  299.241450]  ? sort_range+0x30/0x30
[  299.245081]  kthread+0x35a/0x440
[  299.248449]  ? kthread_stop+0x900/0x900
[  299.252426]  ret_from_fork+0x3a/0x50
[  299.256171] warn_alloc_show_mem: 1 callbacks suppressed
[  299.256183] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  299.256185] Mem-Info:
[  299.256217] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  299.256217]  active_file:12 inactive_file:14 isolated_file:0
[  299.256217]  unevictable:0 dirty:0 writeback:0 unstable:0
[  299.256217]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  299.256217]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  299.256217]  free:13757 free_pcp:113 free_cma:0
[  299.261556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  299.268506] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  299.270918] Call Trace:
[  299.303961] 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
[  299.313306]  <IRQ>
[  299.341129] lowmem_reserve[]: 0 2818 6321 6321
[  299.343739]  dump_stack+0x244/0x39d
[  299.369822] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  299.371975]  ? dump_stack_print_info.cold.1+0x20/0x20
[  299.376529] lowmem_reserve[]: 0 0 3503 3503
[  299.380161]  warn_alloc.cold.116+0xb7/0x1bd
[  299.407628] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  299.412820]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  299.417113] lowmem_reserve[]: 0 0 0 0
[  299.421434]  ? lock_downgrade+0x900/0x900
[  299.450469] 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
[  299.455311]  ? trace_hardirqs_off+0xb8/0x310
[  299.459081] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  299.463228]  ? trace_hardirqs_off+0xb8/0x310
[  299.476729] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  299.481140]  __alloc_pages_slowpath+0x2651/0x2de0
[  299.496637] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  299.501058]  ? warn_alloc+0x120/0x120
[  299.515581] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  299.520419]  ? print_usage_bug+0xc0/0xc0
[  299.529226] 4236 total pagecache pages
[  299.533020]  ? warn_alloc+0x120/0x120
[  299.541595] 0 pages in swap cache
[  299.545645]  ? warn_alloc+0x120/0x120
[  299.549510] Swap cache stats: add 0, delete 0, find 0/0
[  299.553302]  ? print_usage_bug+0xc0/0xc0
[  299.556737] Free swap  = 0kB
[  299.560529]  ? print_usage_bug+0xc0/0xc0
[  299.565872] Total swap = 0kB
[  299.569934]  ? __lock_acquire+0x62f/0x4c20
[  299.572932] 1965979 pages RAM
[  299.577011]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.580008] 0 pages HighMem/MovableOnly
[  299.584239]  ? should_fail+0x22d/0xd01
[  299.587321] 342854 pages reserved
[  299.592855]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  299.596807] 0 pages cma reserved
[  299.600692]  ? __lock_acquire+0x62f/0x4c20
[  299.604192] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  299.609225]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  299.609238]  ? __lock_acquire+0x62f/0x4c20
[  299.609250]  ? should_fail+0x22d/0xd01
[  299.609266]  ? find_held_lock+0x36/0x1c0
[  299.612668] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  299.616842]  ? mark_held_locks+0x130/0x130
[  299.623310] ksoftirqd/0 cpuset=/ mems_allowed=0
[  299.628425]  ? mark_held_locks+0x130/0x130
[  299.664016]  ? zap_class+0x640/0x640
[  299.667745]  ? zap_class+0x640/0x640
[  299.671479]  ? print_usage_bug+0xc0/0xc0
[  299.675554]  ? do_raw_spin_unlock+0xa7/0x330
[  299.679962]  ? zap_class+0x640/0x640
[  299.683675]  ? print_usage_bug+0xc0/0xc0
[  299.687777]  ? wq_watchdog_touch+0x9c/0xfe
[  299.692020]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.697559]  ? check_preemption_disabled+0x48/0x280
[  299.702589]  ? __lock_is_held+0xb5/0x140
[  299.706658]  __alloc_pages_nodemask+0xad8/0xea0
[  299.711329]  ? zap_class+0x640/0x640
[  299.715322]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  299.720354]  ? find_held_lock+0x36/0x1c0
[  299.724464]  ? ____cache_alloc_node+0x1c7/0x1e0
[  299.729133]  ? lock_downgrade+0x900/0x900
[  299.733303]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.738844]  cache_grow_begin+0xa5/0x8c0
[  299.742915]  ? do_raw_spin_unlock+0xa7/0x330
[  299.747336]  fallback_alloc+0x204/0x2e0
[  299.751350]  ____cache_alloc_node+0x1c7/0x1e0
[  299.755847]  kmem_cache_alloc_node+0xe3/0x730
[  299.760437]  ? ipv6_get_ifaddr+0x42e/0x620
[  299.764682]  __alloc_skb+0x119/0x770
[  299.768437]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.773716]  ? netdev_alloc_frag+0x1f0/0x1f0
[  299.778120]  ? lock_downgrade+0x900/0x900
[  299.782277]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.787820]  ? refcount_sub_and_test_checked+0x203/0x310
[  299.793279]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  299.798745]  ? addrconf_rs_timer+0x690/0x690
[  299.803166]  ndisc_alloc_skb+0x144/0x340
[  299.807232]  ndisc_send_rs+0x331/0x6e0
[  299.811143]  addrconf_rs_timer+0x314/0x690
[  299.815385]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.819637]  call_timer_fn+0x272/0x920
[  299.823539]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.827791]  ? process_timeout+0x40/0x40
[  299.831915]  ? mark_held_locks+0xc7/0x130
[  299.836080]  ? _raw_spin_unlock_irq+0x27/0x80
[  299.840587]  ? _raw_spin_unlock_irq+0x27/0x80
[  299.845078]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.849310]  ? lockdep_hardirqs_on+0x296/0x5b0
[  299.853900]  ? trace_hardirqs_on+0xbd/0x310
[  299.858241]  ? kasan_check_read+0x11/0x20
[  299.862398]  ? __run_timers+0x7da/0xc70
[  299.866381]  ? trace_hardirqs_off_caller+0x310/0x310
[  299.871490]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.875729]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.879977]  __run_timers+0x7e5/0xc70
[  299.883791]  ? timer_fixup_init+0x70/0x70
[  299.887942]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  299.892959]  ? zap_class+0x640/0x640
[  299.896679]  ? print_usage_bug+0xc0/0xc0
[  299.900746]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  299.905950]  ? find_held_lock+0x36/0x1c0
[  299.910020]  ? zap_class+0x640/0x640
[  299.913742]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.919286]  ? check_preemption_disabled+0x48/0x280
[  299.924315]  ? __lock_is_held+0xb5/0x140
[  299.928380]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.933925]  ? check_preemption_disabled+0x48/0x280
[  299.938991]  run_timer_softirq+0x52/0xb0
[  299.943056]  ? rcu_read_lock_sched_held+0x14f/0x180
[  299.948073]  __do_softirq+0x308/0xb7e
[  299.951876]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  299.957247]  ? lock_downgrade+0x900/0x900
[  299.961422]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  299.966546]  ? pvclock_read_flags+0x160/0x160
[  299.971043]  ? lapic_next_event+0x5a/0x90
[  299.975195]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.980736]  ? kvm_clock_read+0x18/0x30
[  299.984710]  ? kvm_sched_clock_read+0x9/0x20
[  299.989119]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.994655]  ? check_preemption_disabled+0x48/0x280
[  299.999677]  irq_exit+0x17f/0x1c0
[  300.003128]  smp_apic_timer_interrupt+0x1cb/0x760
[  300.007990]  ? smp_call_function_single_interrupt+0x159/0x650
[  300.013878]  ? smp_call_function_single_interrupt+0x650/0x650
[  300.019772]  ? interrupt_entry+0xb5/0xc0
[  300.023839]  ? trace_hardirqs_off_caller+0xbb/0x310
[  300.028856]  ? trace_hardirqs_off_caller+0xbb/0x310
[  300.033901]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  300.038748]  ? trace_hardirqs_on_caller+0x310/0x310
[  300.043762]  ? trace_hardirqs_on_caller+0x310/0x310
[  300.048794]  ? task_prio+0x50/0x50
[  300.052338]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.057879]  ? check_preemption_disabled+0x48/0x280
[  300.062916]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  300.067775]  apic_timer_interrupt+0xf/0x20
[  300.072020]  </IRQ>
[  300.074260] RIP: 0010:dump_stack+0x358/0x39d
[  300.078670] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  300.097582] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  300.105290] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  300.112559] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  300.119825] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  300.127092] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  300.134360] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  300.141649]  ? dump_stack+0x34f/0x39d
[  300.145460]  ? dump_stack_print_info.cold.1+0x20/0x20
[  300.150655]  ? mark_held_locks+0x130/0x130
[  300.154914]  ? mark_held_locks+0x130/0x130
[  300.159160]  dump_header+0x27b/0xf72
[  300.162898]  ? pagefault_out_of_memory+0x197/0x197
[  300.167838]  ? __lock_acquire+0x62f/0x4c20
[  300.172080]  ? percpu_ref_get_many+0x240/0x240
[  300.176669]  ? print_usage_bug+0xc0/0xc0
[  300.180741]  ? zap_class+0x640/0x640
[  300.184462]  ? print_usage_bug+0xc0/0xc0
[  300.188534]  ? print_usage_bug+0xc0/0xc0
[  300.192631]  ? zap_class+0x640/0x640
[  300.196381]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.201945]  ? find_held_lock+0x36/0x1c0
[  300.206017]  ? mark_held_locks+0xc7/0x130
[  300.210166]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  300.215278]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  300.220387]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  300.224994]  ? trace_hardirqs_on+0xbd/0x310
[  300.229317]  ? kasan_check_read+0x11/0x20
[  300.233466]  ? ___ratelimit+0x3b4/0x672
[  300.237442]  ? trace_hardirqs_off_caller+0x310/0x310
[  300.242545]  ? trace_hardirqs_on+0x310/0x310
[  300.246978]  ? lock_downgrade+0x900/0x900
[  300.251145]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  300.256253]  ? ___ratelimit+0x3b9/0x672
[  300.260260]  ? idr_get_free+0xf70/0xf70
[  300.264238]  ? find_held_lock+0x36/0x1c0
[  300.268342]  oom_kill_process.cold.27+0x10/0x903
[  300.273101]  ? zap_class+0x640/0x640
[  300.276822]  ? check_preemption_disabled+0x48/0x280
[  300.281882]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  300.286825]  ? kasan_check_read+0x11/0x20
[  300.290975]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.296256]  ? oom_evaluate_task+0x540/0x540
[  300.300667]  ? find_held_lock+0x36/0x1c0
[  300.304734]  ? out_of_memory+0x974/0x1430
[  300.308909]  ? lock_downgrade+0x900/0x900
[  300.313064]  ? check_preemption_disabled+0x48/0x280
[  300.318084]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  300.323013]  ? kasan_check_read+0x11/0x20
[  300.327162]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.332448]  ? rcu_softirq_qs+0x20/0x20
[  300.336429]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  300.341965]  ? oom_evaluate_task+0x302/0x540
[  300.346379]  out_of_memory+0xa84/0x1430
[  300.350366]  ? oom_killer_disable+0x3a0/0x3a0
[  300.354884]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  300.359846]  ? __ww_mutex_check_waiters+0x160/0x160
[  300.364873]  __alloc_pages_slowpath+0x232c/0x2de0
[  300.369752]  ? warn_alloc+0x120/0x120
[  300.373551]  ? mark_held_locks+0x130/0x130
[  300.377795]  ? find_get_entry+0xaae/0x1120
[  300.382058]  ? filemap_map_pages+0x1a20/0x1a20
[  300.386649]  ? zap_class+0x640/0x640
[  300.390370]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.395923]  ? check_preemption_disabled+0x48/0x280
[  300.400947]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  300.406484]  ? should_fail+0x22d/0xd01
[  300.410375]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  300.415486]  ? zap_class+0x640/0x640
[  300.419226]  ? __lock_is_held+0xb5/0x140
[  300.423295]  ? mark_held_locks+0x130/0x130
[  300.427543]  ? lock_release+0xa00/0xa00
[  300.431708]  ? perf_trace_sched_process_exec+0x860/0x860
[  300.437159]  ? xa_load+0x2ba/0x460
[  300.440703]  ? lock_downgrade+0x900/0x900
[  300.444857]  ? __might_sleep+0x95/0x190
[  300.448839]  __alloc_pages_nodemask+0xad8/0xea0
[  300.453517]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  300.458534]  ? __page_cache_alloc+0x191/0x5c0
[  300.463026]  ? xa_load+0x2e1/0x460
[  300.466568]  ? xa_clear_mark+0x40/0x40
[  300.470456]  ? zap_class+0x640/0x640
[  300.474176]  ? zap_class+0x640/0x640
[  300.477923]  ? zap_class+0x640/0x640
[  300.481638]  ? __do_page_cache_readahead+0x663/0x810
[  300.486747]  ? find_held_lock+0x36/0x1c0
[  300.490811]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  300.496350]  alloc_pages_current+0x173/0x350
[  300.500775]  __page_cache_alloc+0x38c/0x5c0
[  300.505095]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  300.510024]  ? kasan_check_read+0x11/0x20
[  300.514184]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.519480]  ? generic_perform_write+0x6a0/0x6a0
[  300.524253]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  300.529797]  ? check_preemption_disabled+0x48/0x280
[  300.534822]  filemap_fault+0x1595/0x25f0
[  300.538908]  ? __lock_page_or_retry+0xa00/0xa00
[  300.543581]  ? mark_held_locks+0x130/0x130
[  300.547821]  ? filemap_map_pages+0xd6b/0x1a20
[  300.552323]  ? lock_downgrade+0x900/0x900
[  300.556485]  ? check_preemption_disabled+0x48/0x280
[  300.561506]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  300.566900]  ? kasan_check_read+0x11/0x20
[  300.571050]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.576376]  ? rcu_softirq_qs+0x20/0x20
[  300.580364]  ? filemap_map_pages+0xd92/0x1a20
[  300.584870]  ? find_get_entries_tag+0x1400/0x1400
[  300.589725]  ? debug_object_destroy+0x2b0/0x2b0
[  300.594416]  ? lock_pi_update_atomic+0x150/0x150
[  300.599171]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.604735]  ? lock_acquire+0x1ed/0x520
[  300.608736]  ? ext4_filemap_fault+0x7a/0xad
[  300.613063]  ? lock_release+0xa00/0xa00
[  300.617038]  ? perf_trace_sched_process_exec+0x860/0x860
[  300.622489]  ? print_usage_bug+0xc0/0xc0
[  300.626551]  ? print_usage_bug+0xc0/0xc0
[  300.630620]  ? down_read+0x8d/0x120
[  300.634245]  ? ext4_filemap_fault+0x7a/0xad
[  300.638598]  ? __down_interruptible+0x700/0x700
[  300.643295]  ext4_filemap_fault+0x82/0xad
[  300.647445]  __do_fault+0x100/0x6b0
[  300.651074]  ? find_held_lock+0x36/0x1c0
[  300.655138]  ? pmd_devmap_trans_unstable+0x220/0x220
[  300.660261]  ? mark_held_locks+0x130/0x130
[  300.664498]  ? mark_held_locks+0x130/0x130
[  300.668750]  ? _raw_spin_unlock_irq+0x27/0x80
[  300.673259]  ? _raw_spin_unlock_irq+0x27/0x80
[  300.677755]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  300.682353]  ? kasan_check_read+0x11/0x20
[  300.686507]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  300.692051]  __handle_mm_fault+0x3ea0/0x5be0
[  300.696470]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  300.701314]  ? finish_task_switch+0x1f4/0x910
[  300.705810]  ? finish_task_switch+0x1b4/0x910
[  300.710302]  ? __switch_to_asm+0x34/0x70
[  300.714372]  ? preempt_notifier_register+0x200/0x200
[  300.719478]  ? __switch_to_asm+0x34/0x70
[  300.723544]  ? __switch_to_asm+0x34/0x70
[  300.727632]  ? zap_class+0x640/0x640
[  300.731344]  ? zap_class+0x640/0x640
[  300.735057]  ? __x64_sys_futex+0x53e/0x6a0
[  300.739300]  ? find_held_lock+0x36/0x1c0
[  300.743383]  ? handle_mm_fault+0x42a/0xc70
[  300.747646]  ? lock_downgrade+0x900/0x900
[  300.751806]  ? check_preemption_disabled+0x48/0x280
[  300.756829]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  300.761757]  ? kasan_check_read+0x11/0x20
[  300.765911]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.771206]  ? rcu_softirq_qs+0x20/0x20
[  300.775186]  ? trace_hardirqs_off_caller+0x310/0x310
[  300.780291]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  300.785848]  ? check_preemption_disabled+0x48/0x280
[  300.790876]  handle_mm_fault+0x54f/0xc70
[  300.794961]  ? __handle_mm_fault+0x5be0/0x5be0
[  300.799547]  ? find_vma+0x34/0x190
[  300.803106]  __do_page_fault+0x5e8/0xe60
[  300.807180]  ? trace_hardirqs_off+0xb8/0x310
[  300.811644]  do_page_fault+0xf2/0x7e0
[  300.815462]  ? vmalloc_sync_all+0x30/0x30
[  300.819608]  ? error_entry+0x70/0xd0
[  300.823321]  ? trace_hardirqs_off_caller+0xbb/0x310
[  300.828336]  ? trace_hardirqs_on_caller+0xc0/0x310
[  300.833265]  ? syscall_return_slowpath+0x5e0/0x5e0
[  300.838193]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  300.843055]  ? trace_hardirqs_on_caller+0x310/0x310
[  300.848072]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  300.853532]  ? prepare_exit_to_usermode+0x291/0x3b0
[  300.858546]  ? page_fault+0x8/0x30
[  300.862092]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  300.866940]  ? page_fault+0x8/0x30
[  300.870481]  page_fault+0x1e/0x30
[  300.873933] RIP: 0033:0x40f9c0
[  300.877134] Code: Bad RIP value.
[  300.880495] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  300.885943] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  300.893296] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  300.900560] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  300.907824] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  300.915088] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  300.922378] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  300.922416] rcu: INFO: rcu_preempt self-detected stall on CPU
[  300.929138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  300.935245] rcu: 	1-...!: (1 GPs behind) idle=4ba/1/0x4000000000000004 softirq=10608/10609 fqs=5 
[  300.944440] Call Trace:
[  300.944461]  dump_stack+0x244/0x39d
[  300.944477]  ? dump_stack_print_info.cold.1+0x20/0x20
[  300.944502]  warn_alloc.cold.116+0xb7/0x1bd
[  300.944516]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  300.944536]  ? lock_downgrade+0x900/0x900
[  300.944557]  ? trace_hardirqs_off+0xb8/0x310
[  300.944575]  ? trace_hardirqs_off+0xb8/0x310
[  300.944595]  __alloc_pages_slowpath+0x2651/0x2de0
[  300.953886] rcu: 	 (t=10715 jiffies g=12349 q=5)
[  300.956528]  ? warn_alloc+0x120/0x120
[  300.960119] rcu: rcu_preempt kthread starved for 9293 jiffies! g12349 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[  300.965295]  ? print_usage_bug+0xc0/0xc0
[  300.969592] rcu: RCU grace-period kthread stack dump:
[  300.974425]  ? warn_alloc+0x120/0x120
[  300.978549] rcu_preempt     R  running task    22696    10      2 0x80000000
[  300.982949]  ? warn_alloc+0x120/0x120
[  300.987338] Call Trace:
[  300.992236]  ? print_usage_bug+0xc0/0xc0
[  300.996980]  __schedule+0x8cf/0x21d0
[  301.000763]  ? print_usage_bug+0xc0/0xc0
[  301.011146]  ? __sched_text_start+0x8/0x8
[  301.015184]  ? __lock_acquire+0x62f/0x4c20
[  301.020363]  ? add_timer_on+0xa20/0xa20
[  301.024231]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.031398]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  301.035209]  ? should_fail+0x22d/0xd01
[  301.037790]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  301.041835]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  301.045532]  ? trace_hardirqs_on+0xbd/0x310
[  301.049589]  ? __lock_acquire+0x62f/0x4c20
[  301.053735]  ? kasan_check_read+0x11/0x20
[  301.057962]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  301.061933]  ? prepare_to_swait_event+0x25a/0x800
[  301.067450]  ? __lock_acquire+0x62f/0x4c20
[  301.072541]  ? trace_hardirqs_off_caller+0x310/0x310
[  301.076408]  ? should_fail+0x22d/0xd01
[  301.081498]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  301.086587]  ? find_held_lock+0x36/0x1c0
[  301.090919]  schedule+0xfe/0x460
[  301.095183]  ? mark_held_locks+0x130/0x130
[  301.099327]  ? __schedule+0x21d0/0x21d0
[  301.104421]  ? mark_held_locks+0x130/0x130
[  301.109269]  ? prepare_to_swait_event+0x25a/0x800
[  301.113485]  ? zap_class+0x640/0x640
[  301.118575]  ? __init_swait_queue_head+0x150/0x150
[  301.122442]  ? zap_class+0x640/0x640
[  301.127531]  ? __lockdep_init_map+0x105/0x590
[  301.131577]  ? print_usage_bug+0xc0/0xc0
[  301.134931]  ? lockdep_init_map+0x9/0x10
[  301.139148]  ? do_raw_spin_unlock+0xa7/0x330
[  301.143120]  schedule_timeout+0x140/0x260
[  301.147355]  ? zap_class+0x640/0x640
[  301.152185]  ? usleep_range+0x1a0/0x1a0
[  301.155906]  ? print_usage_bug+0xc0/0xc0
[  301.160830]  ? __next_timer_interrupt+0x1a0/0x1a0
[  301.164533]  ? wq_watchdog_touch+0x9c/0xfe
[  301.169023]  rcu_gp_fqs_loop+0x762/0xa80
[  301.173061]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.177114]  ? rcu_gp_fqs_check_wake+0x170/0x170
[  301.181503]  ? check_preemption_disabled+0x48/0x280
[  301.185646]  ? trace_hardirqs_off_caller+0x310/0x310
[  301.189351]  ? __lock_is_held+0xb5/0x140
[  301.193305]  ? perf_trace_sched_process_exec+0x860/0x860
[  301.197352]  __alloc_pages_nodemask+0xad8/0xea0
[  301.202192]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.206416]  ? zap_class+0x640/0x640
[  301.210463]  ? rcu_gp_init+0x90b/0x1260
[  301.215983]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  301.220744]  ? __switch_to_asm+0x40/0x70
[  301.225749]  ? find_held_lock+0x36/0x1c0
[  301.230848]  ? dump_blkd_tasks.isra.48+0xe0/0xe0
[  301.234925]  ? ____cache_alloc_node+0x1c7/0x1e0
[  301.240347]  ? __switch_to_asm+0x40/0x70
[  301.244998]  ? lock_downgrade+0x900/0x900
[  301.250516]  ? zap_class+0x640/0x640
[  301.254220]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.258191]  ? find_held_lock+0x36/0x1c0
[  301.263237]  cache_grow_begin+0xa5/0x8c0
[  301.267295]  ? zap_class+0x640/0x640
[  301.271337]  ? do_raw_spin_unlock+0xa7/0x330
[  301.276086]  ? __lock_is_held+0xb5/0x140
[  301.280738]  fallback_alloc+0x204/0x2e0
[  301.284814]  ? __lock_is_held+0xb5/0x140
[  301.288975]  ____cache_alloc_node+0x1c7/0x1e0
[  301.292669]  ? zap_class+0x640/0x640
[  301.298191]  kmem_cache_alloc_node+0xe3/0x730
[  301.302236]  ? rcu_accelerate_cbs+0x10a/0xae0
[  301.306284]  ? ipv6_get_ifaddr+0x42e/0x620
[  301.309988]  ? find_held_lock+0x36/0x1c0
[  301.314399]  __alloc_skb+0x119/0x770
[  301.318447]  ? rcu_gp_kthread+0x8cf/0xc70
[  301.322403]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.326453]  ? _raw_spin_unlock_irq+0x27/0x80
[  301.330938]  ? netdev_alloc_frag+0x1f0/0x1f0
[  301.334632]  ? _raw_spin_unlock_irq+0x27/0x80
[  301.339129]  ? lock_downgrade+0x900/0x900
[  301.343606]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  301.347842]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.351884]  ? trace_hardirqs_on+0xbd/0x310
[  301.355600]  ? refcount_sub_and_test_checked+0x203/0x310
[  301.359763]  ? kasan_check_read+0x11/0x20
[  301.365052]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  301.369532]  ? trace_hardirqs_off_caller+0x310/0x310
[  301.373930]  ? addrconf_rs_timer+0x690/0x690
[  301.378413]  ? perf_trace_sched_process_exec+0x860/0x860
[  301.382545]  ndisc_alloc_skb+0x144/0x340
[  301.387126]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.392655]  ndisc_send_rs+0x331/0x6e0
[  301.396987]  rcu_gp_kthread+0x341/0xc70
[  301.402421]  addrconf_rs_timer+0x314/0x690
[  301.406556]  ? rcu_gp_init+0x1260/0x1260
[  301.411993]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.417079]  ? mark_held_locks+0x130/0x130
[  301.421477]  call_timer_fn+0x272/0x920
[  301.426918]  ? __schedule+0x168a/0x21d0
[  301.430979]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.436499]  ? _raw_spin_unlock_irq+0x27/0x80
[  301.440366]  ? process_timeout+0x40/0x40
[  301.444327]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  301.448566]  ? __run_timers+0x7da/0xc70
[  301.452609]  ? trace_hardirqs_on+0xbd/0x310
[  301.456844]  ? _raw_spin_unlock_irq+0x27/0x80
[  301.461077]  ? kasan_check_read+0x11/0x20
[  301.464946]  ? _raw_spin_unlock_irq+0x27/0x80
[  301.468934]  ? __schedule+0x168a/0x21d0
[  301.473154]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.477639]  ? trace_hardirqs_off_caller+0x310/0x310
[  301.481724]  ? lockdep_hardirqs_on+0x296/0x5b0
[  301.486291]  ? lock_pin_lock+0x350/0x350
[  301.490253]  ? trace_hardirqs_on+0xbd/0x310
[  301.494562]  ? _raw_spin_unlock_irq+0x60/0x80
[  301.499046]  ? kasan_check_read+0x11/0x20
[  301.503204]  ? __schedule+0x168a/0x21d0
[  301.507684]  ? __run_timers+0x7da/0xc70
[  301.511658]  ? __switch_to_asm+0x40/0x70
[  301.515880]  ? trace_hardirqs_off_caller+0x310/0x310
[  301.520972]  ? __switch_to_asm+0x40/0x70
[  301.525542]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.529590]  ? show_schedstat+0x551/0xf30
[  301.533913]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.538394]  ? __sched_text_start+0x8/0x8
[  301.542522]  __run_timers+0x7e5/0xc70
[  301.546484]  ? find_held_lock+0x36/0x1c0
[  301.550448]  ? timer_fixup_init+0x70/0x70
[  301.554493]  ? __kthread_parkme+0xce/0x1a0
[  301.559616]  ? _raw_spin_unlock_irq+0x27/0x80
[  301.563664]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  301.567883]  ? _raw_spin_unlock_irq+0x27/0x80
[  301.572026]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  301.576246]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  301.580393]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  301.584178]  ? trace_hardirqs_on+0xbd/0x310
[  301.588224]  ? trace_hardirqs_on+0xbd/0x310
[  301.592371]  ? kasan_check_read+0x11/0x20
[  301.596606]  ? kasan_check_read+0x11/0x20
[  301.601098]  ? finish_task_switch+0x1f4/0x910
[  301.606182]  ? __kthread_parkme+0xce/0x1a0
[  301.610677]  ? trace_hardirqs_off_caller+0x310/0x310
[  301.615766]  ? trace_hardirqs_off_caller+0x310/0x310
[  301.620350]  ? compat_start_thread+0x80/0x80
[  301.624931]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  301.629248]  ? pvclock_read_flags+0x160/0x160
[  301.633539]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.637682]  ? __switch_to_asm+0x34/0x70
[  301.641819]  ? __kthread_parkme+0xfb/0x1a0
[  301.646298]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.650521]  ? rcu_gp_init+0x1260/0x1260
[  301.655620]  ? check_preemption_disabled+0x48/0x280
[  301.660704]  kthread+0x35a/0x440
[  301.665099]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  301.670875]  ? kthread_stop+0x900/0x900
[  301.675365]  ? rcu_pm_notify+0xc0/0xc0
[  301.680883]  ret_from_fork+0x3a/0x50
[  301.684947]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.689175] NMI backtrace for cpu 1
[  301.694704]  ? check_preemption_disabled+0x48/0x280
[  301.738310]  run_timer_softirq+0x52/0xb0
[  301.742391]  ? rcu_read_lock_sched_held+0x14f/0x180
[  301.747421]  __do_softirq+0x308/0xb7e
[  301.751247]  ? trace_hardirqs_on_caller+0xc0/0x310
[  301.756195]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  301.761294]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  301.766742]  ? trace_hardirqs_on+0x310/0x310
[  301.771193]  ? schedule+0x108/0x460
[  301.774834]  ? trace_hardirqs_off+0xb8/0x310
[  301.779246]  ? smpboot_thread_fn+0x68b/0xa00
[  301.783674]  ? trace_hardirqs_on+0x310/0x310
[  301.788088]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.793656]  ? check_preemption_disabled+0x48/0x280
[  301.798672]  ? takeover_tasklets+0xa90/0xa90
[  301.803098]  run_ksoftirqd+0x5e/0x100
[  301.806926]  smpboot_thread_fn+0x68b/0xa00
[  301.811166]  ? sort_range+0x30/0x30
[  301.814793]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  301.819907]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.825445]  ? __kthread_parkme+0xfb/0x1a0
[  301.829683]  ? sort_range+0x30/0x30
[  301.833328]  kthread+0x35a/0x440
[  301.836709]  ? kthread_stop+0x900/0x900
[  301.840680]  ret_from_fork+0x3a/0x50
[  301.844415] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  301.844420] warn_alloc_show_mem: 1 callbacks suppressed
[  301.844426] Mem-Info:
[  301.851346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  301.856714] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  301.856714]  active_file:12 inactive_file:14 isolated_file:0
[  301.856714]  unevictable:0 dirty:0 writeback:0 unstable:0
[  301.856714]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  301.856714]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  301.856714]  free:13757 free_pcp:113 free_cma:0
[  301.859085] Call Trace:
[  301.868467] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  301.901484]  <IRQ>
[  301.904053] 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
[  301.931899]  dump_stack+0x244/0x39d
[  301.934030] lowmem_reserve[]: 0 2818 6321 6321
[  301.960167]  ? dump_stack_print_info.cold.1+0x20/0x20
[  301.963773] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  301.968370]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.973533] lowmem_reserve[]: 0 0 3503 3503
[  302.001026]  ? do_raw_spin_lock+0x14f/0x350
[  302.006545] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  302.010861]  nmi_cpu_backtrace.cold.2+0x5c/0xa1
[  302.015162] lowmem_reserve[]: 0 0 0 0
[  302.044216]  ? lapic_can_unplug_cpu.cold.27+0x3f/0x3f
[  302.048880] 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
[  302.052695]  nmi_trigger_cpumask_backtrace+0x1e8/0x22a
[  302.057862] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  302.071380]  arch_trigger_cpumask_backtrace+0x14/0x20
[  302.076634] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  302.092164]  rcu_dump_cpu_stacks+0x16f/0x1bc
[  302.097335] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  302.111899]  print_cpu_stall.cold.67+0x1f3/0x3c7
[  302.116289] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  302.125110]  ? print_other_cpu_stall+0x160/0x160
[  302.129844] 4236 total pagecache pages
[  302.138416]  ? print_usage_bug+0xc0/0xc0
[  302.143145] 0 pages in swap cache
[  302.147025]  ? kasan_check_read+0x11/0x20
[  302.151063] Swap cache stats: add 0, delete 0, find 0/0
[  302.154508]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.158630] Free swap  = 0kB
[  302.164001]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.169511] Total swap = 0kB
[  302.172522]  ? do_trace_rcu_torture_read+0x10/0x10
[  302.178036] 1965979 pages RAM
[  302.181051]  ? rcu_preempt_need_deferred_qs+0x74/0x1f0
[  302.185950] 0 pages HighMem/MovableOnly
[  302.185959] 342854 pages reserved
[  302.189056]  ? __lock_is_held+0xb5/0x140
[  302.194308] 0 pages cma reserved
[  302.198272]  ? __rcu_read_lock+0x50/0x50
[  302.201803] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  302.205746]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.205761]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.205782]  ? check_preemption_disabled+0x48/0x280
[  302.209189] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  302.213190]  rcu_check_callbacks+0xf3b/0x13f0
[  302.219671] ksoftirqd/0 cpuset=/ mems_allowed=0
[  302.225214]  ? rcutree_dead_cpu+0x10/0x10
[  302.259353]  ? lock_downgrade+0x900/0x900
[  302.263504]  ? lock_release+0x960/0xa00
[  302.267516]  ? zap_class+0x640/0x640
[  302.271271]  ? mark_held_locks+0x130/0x130
[  302.275524]  ? zap_class+0x640/0x640
[  302.279240]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.284776]  ? pvclock_gtod_notify+0x2e3/0x3e0
[  302.289389]  ? kvm_set_tsc_khz+0x540/0x540
[  302.293629]  ? warn_alloc.cold.116+0xd1/0x1bd
[  302.298132]  ? find_held_lock+0x36/0x1c0
[  302.302215]  ? zap_class+0x640/0x640
[  302.305944]  ? timekeeping_advance+0x3cc/0xc00
[  302.310532]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.316069]  ? check_preemption_disabled+0x48/0x280
[  302.321096]  ? trace_hardirqs_off+0xb8/0x310
[  302.325519]  ? __lock_is_held+0xb5/0x140
[  302.329594]  ? trace_hardirqs_on+0x310/0x310
[  302.334011]  ? check_preemption_disabled+0x48/0x280
[  302.339036]  ? raise_softirq+0x199/0x420
[  302.343101]  ? raise_softirq_irqoff+0x2e0/0x2e0
[  302.347780]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.353315]  ? check_preemption_disabled+0x48/0x280
[  302.358338]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  302.363876]  ? hrtimer_run_queues+0x9a/0x400
[  302.368293]  ? run_local_timers+0x19b/0x230
[  302.372614]  ? timer_clear_idle+0x90/0x90
[  302.376761]  ? debug_smp_processor_id+0x1c/0x20
[  302.381443]  ? irqtime_account_process_tick.isra.6+0x114/0x490
[  302.387422]  ? account_process_tick+0x282/0x350
[  302.392096]  update_process_times+0x2d/0x70
[  302.396425]  tick_sched_handle+0x9f/0x180
[  302.400593]  tick_sched_timer+0x45/0x130
[  302.404655]  __hrtimer_run_queues+0x41c/0x10d0
[  302.409259]  ? tick_sched_do_timer+0x1a0/0x1a0
[  302.413845]  ? hrtimer_start_range_ns+0xe00/0xe00
[  302.418723]  ? pvclock_read_flags+0x160/0x160
[  302.423236]  ? trace_hardirqs_on+0x310/0x310
[  302.427651]  ? zap_class+0x640/0x640
[  302.431543]  ? kvm_clock_read+0x18/0x30
[  302.435520]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  302.440553]  ? ktime_get_update_offsets_now+0x3b3/0x540
[  302.445940]  ? do_timer+0x50/0x50
[  302.449396]  ? rwlock_bug.part.2+0x90/0x90
[  302.453652]  ? trace_hardirqs_on+0x310/0x310
[  302.458057]  ? rcu_softirq_qs+0x20/0x20
[  302.462044]  hrtimer_interrupt+0x313/0x780
[  302.466302]  smp_apic_timer_interrupt+0x1a1/0x760
[  302.471147]  ? smp_call_function_single_interrupt+0x650/0x650
[  302.477032]  ? interrupt_entry+0xb5/0xc0
[  302.481112]  ? trace_hardirqs_off_caller+0xbb/0x310
[  302.486128]  ? ____cache_alloc_node+0x1c7/0x1e0
[  302.490797]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  302.495651]  ? trace_hardirqs_on_caller+0x310/0x310
[  302.500702]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  302.505554]  apic_timer_interrupt+0xf/0x20
[  302.509811] RIP: 0010:kmem_cache_alloc_node+0x247/0x730
[  302.515188] Code: 3f 7e 0f 85 32 ff ff ff e8 55 17 3e ff e9 28 ff ff ff e8 fc 4c c3 ff 48 83 3d 94 95 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 da bb
[  302.534096] RSP: 0018:ffff8881daf07450 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  302.541809] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff110382019a3
[  302.549091] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
[  302.556360] RBP: ffff8881daf074c0 R08: ffff8881c100cd18 R09: 0000000000000002
[  302.564112] R10: 0000000000000000 R11: ffff8881c100c400 R12: ffff8881d9beec00
[  302.571380] R13: ffff8881d9beec00 R14: 0000000000000000 R15: 0000000000000286
[  302.578670]  ? apic_timer_interrupt+0xa/0x20
[  302.583096]  ? ipv6_get_ifaddr+0x42e/0x620
[  302.587342]  __alloc_skb+0x119/0x770
[  302.591057]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  302.596351]  ? netdev_alloc_frag+0x1f0/0x1f0
[  302.600758]  ? lock_downgrade+0x900/0x900
[  302.604922]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.610460]  ? refcount_sub_and_test_checked+0x203/0x310
[  302.615928]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  302.621416]  ? addrconf_rs_timer+0x690/0x690
[  302.625840]  ndisc_alloc_skb+0x144/0x340
[  302.629914]  ndisc_send_rs+0x331/0x6e0
[  302.633818]  addrconf_rs_timer+0x314/0x690
[  302.638062]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.642312]  call_timer_fn+0x272/0x920
[  302.646200]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.650437]  ? process_timeout+0x40/0x40
[  302.654522]  ? mark_held_locks+0xc7/0x130
[  302.658674]  ? _raw_spin_unlock_irq+0x27/0x80
[  302.663176]  ? _raw_spin_unlock_irq+0x27/0x80
[  302.667673]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.671913]  ? lockdep_hardirqs_on+0x296/0x5b0
[  302.676502]  ? trace_hardirqs_on+0xbd/0x310
[  302.680824]  ? kasan_check_read+0x11/0x20
[  302.684974]  ? __run_timers+0x7da/0xc70
[  302.688954]  ? trace_hardirqs_off_caller+0x310/0x310
[  302.694065]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.698307]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.702540]  __run_timers+0x7e5/0xc70
[  302.706352]  ? timer_fixup_init+0x70/0x70
[  302.710504]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  302.715523]  ? zap_class+0x640/0x640
[  302.719245]  ? print_usage_bug+0xc0/0xc0
[  302.723315]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  302.728542]  ? find_held_lock+0x36/0x1c0
[  302.732605]  ? zap_class+0x640/0x640
[  302.736325]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.741953]  ? check_preemption_disabled+0x48/0x280
[  302.746980]  ? __lock_is_held+0xb5/0x140
[  302.751046]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.756582]  ? check_preemption_disabled+0x48/0x280
[  302.761621]  run_timer_softirq+0x52/0xb0
[  302.765683]  ? rcu_read_lock_sched_held+0x14f/0x180
[  302.770708]  __do_softirq+0x308/0xb7e
[  302.774511]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  302.779010]  ? lock_downgrade+0x900/0x900
[  302.783166]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  302.788280]  ? pvclock_read_flags+0x160/0x160
[  302.792780]  ? lapic_next_event+0x5a/0x90
[  302.796930]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.802478]  ? kvm_clock_read+0x18/0x30
[  302.806477]  ? kvm_sched_clock_read+0x9/0x20
[  302.810886]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  302.816438]  ? check_preemption_disabled+0x48/0x280
[  302.821464]  irq_exit+0x17f/0x1c0
[  302.824928]  smp_apic_timer_interrupt+0x1cb/0x760
[  302.829782]  ? smp_call_function_single_interrupt+0x159/0x650
[  302.835680]  ? smp_call_function_single_interrupt+0x650/0x650
[  302.841564]  ? interrupt_entry+0xb5/0xc0
[  302.845673]  ? trace_hardirqs_off_caller+0xbb/0x310
[  302.850702]  ? trace_hardirqs_off_caller+0xbb/0x310
[  302.855721]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  302.860567]  ? trace_hardirqs_on_caller+0x310/0x310
[  302.865768]  ? trace_hardirqs_on_caller+0x310/0x310
[  302.870786]  ? task_prio+0x50/0x50
[  302.874332]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.879868]  ? check_preemption_disabled+0x48/0x280
[  302.884901]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  302.889756]  apic_timer_interrupt+0xf/0x20
[  302.893986]  </IRQ>
[  302.896237] RIP: 0010:dump_stack+0x358/0x39d
[  302.900646] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  302.919542] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  302.927266] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  302.934551] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  302.941817] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  302.949086] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  302.956355] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  302.963638]  ? dump_stack+0x34f/0x39d
[  302.967452]  ? dump_stack_print_info.cold.1+0x20/0x20
[  302.972660]  ? mark_held_locks+0x130/0x130
[  302.976904]  ? mark_held_locks+0x130/0x130
[  302.981145]  dump_header+0x27b/0xf72
[  302.984886]  ? pagefault_out_of_memory+0x197/0x197
[  302.989833]  ? __lock_acquire+0x62f/0x4c20
[  302.994107]  ? percpu_ref_get_many+0x240/0x240
[  302.998694]  ? print_usage_bug+0xc0/0xc0
[  303.002773]  ? zap_class+0x640/0x640
[  303.006492]  ? print_usage_bug+0xc0/0xc0
[  303.010564]  ? print_usage_bug+0xc0/0xc0
[  303.014627]  ? zap_class+0x640/0x640
[  303.018348]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.023897]  ? find_held_lock+0x36/0x1c0
[  303.027978]  ? mark_held_locks+0xc7/0x130
[  303.032130]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  303.037232]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  303.042362]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  303.046944]  ? trace_hardirqs_on+0xbd/0x310
[  303.051267]  ? kasan_check_read+0x11/0x20
[  303.055420]  ? ___ratelimit+0x3b4/0x672
[  303.059397]  ? trace_hardirqs_off_caller+0x310/0x310
[  303.064508]  ? trace_hardirqs_on+0x310/0x310
[  303.068924]  ? lock_downgrade+0x900/0x900
[  303.073094]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  303.078203]  ? ___ratelimit+0x3b9/0x672
[  303.082179]  ? idr_get_free+0xf70/0xf70
[  303.086154]  ? find_held_lock+0x36/0x1c0
[  303.090225]  oom_kill_process.cold.27+0x10/0x903
[  303.094985]  ? zap_class+0x640/0x640
[  303.098703]  ? check_preemption_disabled+0x48/0x280
[  303.103722]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  303.108673]  ? kasan_check_read+0x11/0x20
[  303.112820]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.118100]  ? oom_evaluate_task+0x540/0x540
[  303.122511]  ? find_held_lock+0x36/0x1c0
[  303.126580]  ? out_of_memory+0x974/0x1430
[  303.130734]  ? lock_downgrade+0x900/0x900
[  303.134912]  ? check_preemption_disabled+0x48/0x280
[  303.139952]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  303.144881]  ? kasan_check_read+0x11/0x20
[  303.149060]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.154338]  ? rcu_softirq_qs+0x20/0x20
[  303.158321]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.163871]  ? oom_evaluate_task+0x302/0x540
[  303.168321]  out_of_memory+0xa84/0x1430
[  303.172304]  ? oom_killer_disable+0x3a0/0x3a0
[  303.176833]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  303.181798]  ? __ww_mutex_check_waiters+0x160/0x160
[  303.186848]  __alloc_pages_slowpath+0x232c/0x2de0
[  303.191743]  ? warn_alloc+0x120/0x120
[  303.195541]  ? mark_held_locks+0x130/0x130
[  303.199817]  ? find_get_entry+0xaae/0x1120
[  303.204094]  ? filemap_map_pages+0x1a20/0x1a20
[  303.208681]  ? zap_class+0x640/0x640
[  303.212438]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.217993]  ? check_preemption_disabled+0x48/0x280
[  303.223012]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.228595]  ? should_fail+0x22d/0xd01
[  303.232486]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  303.237606]  ? zap_class+0x640/0x640
[  303.241348]  ? __lock_is_held+0xb5/0x140
[  303.245422]  ? mark_held_locks+0x130/0x130
[  303.249658]  ? lock_release+0xa00/0xa00
[  303.253661]  ? perf_trace_sched_process_exec+0x860/0x860
[  303.259112]  ? xa_load+0x2ba/0x460
[  303.262653]  ? lock_downgrade+0x900/0x900
[  303.266823]  ? __might_sleep+0x95/0x190
[  303.270839]  __alloc_pages_nodemask+0xad8/0xea0
[  303.275538]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  303.280553]  ? __page_cache_alloc+0x191/0x5c0
[  303.285058]  ? xa_load+0x2e1/0x460
[  303.288604]  ? xa_clear_mark+0x40/0x40
[  303.292495]  ? zap_class+0x640/0x640
[  303.296216]  ? zap_class+0x640/0x640
[  303.299928]  ? zap_class+0x640/0x640
[  303.303645]  ? __do_page_cache_readahead+0x663/0x810
[  303.308752]  ? find_held_lock+0x36/0x1c0
[  303.312822]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  303.318367]  alloc_pages_current+0x173/0x350
[  303.322786]  __page_cache_alloc+0x38c/0x5c0
[  303.327106]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  303.332033]  ? kasan_check_read+0x11/0x20
[  303.336181]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.341460]  ? generic_perform_write+0x6a0/0x6a0
[  303.346217]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.351756]  ? check_preemption_disabled+0x48/0x280
[  303.356778]  filemap_fault+0x1595/0x25f0
[  303.360861]  ? __lock_page_or_retry+0xa00/0xa00
[  303.365569]  ? mark_held_locks+0x130/0x130
[  303.369817]  ? filemap_map_pages+0xd6b/0x1a20
[  303.374315]  ? lock_downgrade+0x900/0x900
[  303.378462]  ? check_preemption_disabled+0x48/0x280
[  303.383483]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  303.388419]  ? kasan_check_read+0x11/0x20
[  303.392566]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.397841]  ? rcu_softirq_qs+0x20/0x20
[  303.401830]  ? filemap_map_pages+0xd92/0x1a20
[  303.406339]  ? find_get_entries_tag+0x1400/0x1400
[  303.411193]  ? debug_object_destroy+0x2b0/0x2b0
[  303.415865]  ? lock_pi_update_atomic+0x150/0x150
[  303.420630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.426180]  ? lock_acquire+0x1ed/0x520
[  303.430155]  ? ext4_filemap_fault+0x7a/0xad
[  303.434484]  ? lock_release+0xa00/0xa00
[  303.438461]  ? perf_trace_sched_process_exec+0x860/0x860
[  303.443931]  ? print_usage_bug+0xc0/0xc0
[  303.447994]  ? print_usage_bug+0xc0/0xc0
[  303.452074]  ? down_read+0x8d/0x120
[  303.455701]  ? ext4_filemap_fault+0x7a/0xad
[  303.460030]  ? __down_interruptible+0x700/0x700
[  303.464744]  ext4_filemap_fault+0x82/0xad
[  303.469611]  __do_fault+0x100/0x6b0
[  303.473237]  ? find_held_lock+0x36/0x1c0
[  303.477305]  ? pmd_devmap_trans_unstable+0x220/0x220
[  303.482435]  ? mark_held_locks+0x130/0x130
[  303.486702]  ? mark_held_locks+0x130/0x130
[  303.490939]  ? _raw_spin_unlock_irq+0x27/0x80
[  303.495438]  ? _raw_spin_unlock_irq+0x27/0x80
[  303.499942]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  303.504546]  ? kasan_check_read+0x11/0x20
[  303.508699]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.514244]  __handle_mm_fault+0x3ea0/0x5be0
[  303.518664]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  303.523509]  ? finish_task_switch+0x1f4/0x910
[  303.528008]  ? finish_task_switch+0x1b4/0x910
[  303.532501]  ? __switch_to_asm+0x34/0x70
[  303.536570]  ? preempt_notifier_register+0x200/0x200
[  303.541686]  ? __switch_to_asm+0x34/0x70
[  303.545757]  ? __switch_to_asm+0x34/0x70
[  303.549852]  ? zap_class+0x640/0x640
[  303.553585]  ? zap_class+0x640/0x640
[  303.557332]  ? __x64_sys_futex+0x53e/0x6a0
[  303.561600]  ? find_held_lock+0x36/0x1c0
[  303.565693]  ? handle_mm_fault+0x42a/0xc70
[  303.569930]  ? lock_downgrade+0x900/0x900
[  303.574081]  ? check_preemption_disabled+0x48/0x280
[  303.579114]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  303.584042]  ? kasan_check_read+0x11/0x20
[  303.588191]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.593471]  ? rcu_softirq_qs+0x20/0x20
[  303.597446]  ? trace_hardirqs_off_caller+0x310/0x310
[  303.602568]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.608107]  ? check_preemption_disabled+0x48/0x280
[  303.613132]  handle_mm_fault+0x54f/0xc70
[  303.617199]  ? __handle_mm_fault+0x5be0/0x5be0
[  303.621795]  ? find_vma+0x34/0x190
[  303.625343]  __do_page_fault+0x5e8/0xe60
[  303.629409]  ? trace_hardirqs_off+0xb8/0x310
[  303.633829]  do_page_fault+0xf2/0x7e0
[  303.637648]  ? vmalloc_sync_all+0x30/0x30
[  303.641797]  ? error_entry+0x70/0xd0
[  303.645515]  ? trace_hardirqs_off_caller+0xbb/0x310
[  303.650531]  ? trace_hardirqs_on_caller+0xc0/0x310
[  303.655462]  ? syscall_return_slowpath+0x5e0/0x5e0
[  303.660394]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  303.665243]  ? trace_hardirqs_on_caller+0x310/0x310
[  303.670258]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  303.675717]  ? prepare_exit_to_usermode+0x291/0x3b0
[  303.680734]  ? page_fault+0x8/0x30
[  303.684283]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  303.689223]  ? page_fault+0x8/0x30
[  303.692767]  page_fault+0x1e/0x30
[  303.696223] RIP: 0033:0x40f9c0
[  303.699447] Code: Bad RIP value.
[  303.702810] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  303.708177] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  303.715447] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  303.722718] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  303.730015] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  303.737313] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  303.744613] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  303.744963] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  303.751373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  303.751383] Call Trace:
[  303.758037] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  303.767275]  dump_stack+0x244/0x39d
[  303.769833] syz-fuzzer cpuset=/ mems_allowed=0
[  303.780053]  ? dump_stack_print_info.cold.1+0x20/0x20
[  303.793407]  warn_alloc.cold.116+0xb7/0x1bd
[  303.797730]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  303.802623]  ? lock_downgrade+0x900/0x900
[  303.806788]  ? trace_hardirqs_off+0xb8/0x310
[  303.811208]  ? trace_hardirqs_off+0xb8/0x310
[  303.815630]  __alloc_pages_slowpath+0x2651/0x2de0
[  303.820664]  ? warn_alloc+0x120/0x120
[  303.824470]  ? print_usage_bug+0xc0/0xc0
[  303.828542]  ? warn_alloc+0x120/0x120
[  303.832348]  ? warn_alloc+0x120/0x120
[  303.836202]  ? print_usage_bug+0xc0/0xc0
[  303.840269]  ? print_usage_bug+0xc0/0xc0
[  303.844333]  ? __lock_acquire+0x62f/0x4c20
[  303.848591]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.854145]  ? should_fail+0x22d/0xd01
[  303.858057]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  303.863176]  ? __lock_acquire+0x62f/0x4c20
[  303.867414]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  303.872517]  ? __lock_acquire+0x62f/0x4c20
[  303.876764]  ? should_fail+0x22d/0xd01
[  303.880669]  ? find_held_lock+0x36/0x1c0
[  303.884736]  ? mark_held_locks+0x130/0x130
[  303.888977]  ? mark_held_locks+0x130/0x130
[  303.893237]  ? zap_class+0x640/0x640
[  303.896954]  ? zap_class+0x640/0x640
[  303.900673]  ? print_usage_bug+0xc0/0xc0
[  303.904749]  ? do_raw_spin_unlock+0xa7/0x330
[  303.909172]  ? zap_class+0x640/0x640
[  303.912916]  ? print_usage_bug+0xc0/0xc0
[  303.916980]  ? wq_watchdog_touch+0x9c/0xfe
[  303.921222]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.926761]  ? check_preemption_disabled+0x48/0x280
[  303.931784]  ? __lock_is_held+0xb5/0x140
[  303.935859]  __alloc_pages_nodemask+0xad8/0xea0
[  303.940550]  ? zap_class+0x640/0x640
[  303.944277]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  303.949304]  ? find_held_lock+0x36/0x1c0
[  303.953407]  ? ____cache_alloc_node+0x1c7/0x1e0
[  303.958106]  ? lock_downgrade+0x900/0x900
[  303.962271]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.967817]  cache_grow_begin+0xa5/0x8c0
[  303.971910]  ? do_raw_spin_unlock+0xa7/0x330
[  303.976331]  fallback_alloc+0x204/0x2e0
[  303.980368]  ____cache_alloc_node+0x1c7/0x1e0
[  303.984872]  kmem_cache_alloc_node+0xe3/0x730
[  303.989380]  ? ipv6_get_ifaddr+0x42e/0x620
[  303.993625]  __alloc_skb+0x119/0x770
[  303.997351]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.002672]  ? netdev_alloc_frag+0x1f0/0x1f0
[  304.007082]  ? lock_downgrade+0x900/0x900
[  304.011251]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.016789]  ? refcount_sub_and_test_checked+0x203/0x310
[  304.022259]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  304.027739]  ? addrconf_rs_timer+0x690/0x690
[  304.032208]  ndisc_alloc_skb+0x144/0x340
[  304.036273]  ndisc_send_rs+0x331/0x6e0
[  304.040163]  addrconf_rs_timer+0x314/0x690
[  304.044403]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.048647]  call_timer_fn+0x272/0x920
[  304.052536]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.056772]  ? process_timeout+0x40/0x40
[  304.060849]  ? __run_timers+0x7da/0xc70
[  304.064833]  ? _raw_spin_unlock_irq+0x27/0x80
[  304.069329]  ? _raw_spin_unlock_irq+0x27/0x80
[  304.073825]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.078062]  ? lockdep_hardirqs_on+0x296/0x5b0
[  304.082645]  ? trace_hardirqs_on+0xbd/0x310
[  304.086968]  ? kasan_check_read+0x11/0x20
[  304.091114]  ? __run_timers+0x7da/0xc70
[  304.095098]  ? trace_hardirqs_off_caller+0x310/0x310
[  304.100208]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.104465]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.108697]  __run_timers+0x7e5/0xc70
[  304.112520]  ? timer_fixup_init+0x70/0x70
[  304.116663]  ? _raw_spin_unlock_irq+0x27/0x80
[  304.121171]  ? _raw_spin_unlock_irq+0x27/0x80
[  304.125670]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  304.130258]  ? trace_hardirqs_on+0xbd/0x310
[  304.134591]  ? kasan_check_read+0x11/0x20
[  304.138742]  ? finish_task_switch+0x1f4/0x910
[  304.143249]  ? trace_hardirqs_off_caller+0x310/0x310
[  304.148356]  ? compat_start_thread+0x80/0x80
[  304.152783]  ? pvclock_read_flags+0x160/0x160
[  304.157275]  ? __switch_to_asm+0x34/0x70
[  304.161337]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.166899]  ? check_preemption_disabled+0x48/0x280
[  304.171944]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  304.177486]  ? rcu_pm_notify+0xc0/0xc0
[  304.181376]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.186928]  ? check_preemption_disabled+0x48/0x280
[  304.191981]  run_timer_softirq+0x52/0xb0
[  304.196043]  ? rcu_read_lock_sched_held+0x14f/0x180
[  304.201066]  __do_softirq+0x308/0xb7e
[  304.204886]  ? trace_hardirqs_on_caller+0xc0/0x310
[  304.209835]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  304.214942]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  304.220390]  ? trace_hardirqs_on+0x310/0x310
[  304.224823]  ? schedule+0x108/0x460
[  304.228463]  ? trace_hardirqs_off+0xb8/0x310
[  304.232870]  ? smpboot_thread_fn+0x68b/0xa00
[  304.237291]  ? trace_hardirqs_on+0x310/0x310
[  304.241719]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.247270]  ? check_preemption_disabled+0x48/0x280
[  304.252288]  ? takeover_tasklets+0xa90/0xa90
[  304.256697]  run_ksoftirqd+0x5e/0x100
[  304.260497]  smpboot_thread_fn+0x68b/0xa00
[  304.264753]  ? sort_range+0x30/0x30
[  304.268395]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  304.273498]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.279064]  ? __kthread_parkme+0xfb/0x1a0
[  304.283305]  ? sort_range+0x30/0x30
[  304.286947]  kthread+0x35a/0x440
[  304.290316]  ? kthread_stop+0x900/0x900
[  304.294294]  ret_from_fork+0x3a/0x50
[  304.298033] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  304.298035] Mem-Info:
[  304.298067] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  304.298067]  active_file:12 inactive_file:14 isolated_file:0
[  304.298067]  unevictable:0 dirty:0 writeback:0 unstable:0
[  304.298067]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  304.298067]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  304.298067]  free:13757 free_pcp:113 free_cma:0
[  304.304981] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  304.307431] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  304.340446] Call Trace:
[  304.349789] 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
[  304.377619]  <IRQ>
[  304.380199] lowmem_reserve[]: 0 2818 6321 6321
[  304.406320]  dump_stack+0x244/0x39d
[  304.408444] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  304.413037]  ? dump_stack_print_info.cold.1+0x20/0x20
[  304.416650] lowmem_reserve[]: 0 0 3503 3503
[  304.444354]  warn_alloc.cold.116+0xb7/0x1bd
[  304.449517] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  304.453830]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  304.458133] lowmem_reserve[]: 0 0 0 0
[  304.487200]  ? lock_downgrade+0x900/0x900
[  304.492035] 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
[  304.495846]  ? trace_hardirqs_off+0xb8/0x310
[  304.499982] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  304.513500]  ? trace_hardirqs_off+0xb8/0x310
[  304.517884] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  304.533415]  __alloc_pages_slowpath+0x2651/0x2de0
[  304.537814] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  304.552385]  ? warn_alloc+0x120/0x120
[  304.557187] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  304.566460]  ? print_usage_bug+0xc0/0xc0
[  304.570242] 4236 total pagecache pages
[  304.578810]  ? warn_alloc+0x120/0x120
[  304.582854] 0 pages in swap cache
[  304.586729]  ? warn_alloc+0x120/0x120
[  304.590509] Swap cache stats: add 0, delete 0, find 0/0
[  304.593953]  ? print_usage_bug+0xc0/0xc0
[  304.597727] Free swap  = 0kB
[  304.603085]  ? kvm_clock_read+0x18/0x30
[  304.607123] Total swap = 0kB
[  304.610138]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  304.614091] 1965979 pages RAM
[  304.617120]  ? print_usage_bug+0xc0/0xc0
[  304.622129] 0 pages HighMem/MovableOnly
[  304.625232]  ? __lock_acquire+0x62f/0x4c20
[  304.629271] 342854 pages reserved
[  304.633236]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.637446] 0 pages cma reserved
[  304.640903]  ? should_fail+0x22d/0xd01
[  304.646494] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  304.649782]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.649801]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  304.653722] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  304.660153]  ? __lock_acquire+0x62f/0x4c20
[  304.665404] ksoftirqd/0 cpuset=/ mems_allowed=0
[  304.670513]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  304.694783]  ? __lock_acquire+0x62f/0x4c20
[  304.699030]  ? should_fail+0x22d/0xd01
[  304.702920]  ? rcu_irq_exit+0x1a2/0x390
[  304.706912]  ? mark_held_locks+0x130/0x130
[  304.711155]  ? mark_held_locks+0x130/0x130
[  304.715406]  ? mark_held_locks+0xc7/0x130
[  304.719552]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  304.724581]  ? zap_class+0x640/0x640
[  304.728309]  ? print_usage_bug+0xc0/0xc0
[  304.732376]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.737925]  ? check_preemption_disabled+0x48/0x280
[  304.742955]  ? __lock_is_held+0xb5/0x140
[  304.747028]  __alloc_pages_nodemask+0xad8/0xea0
[  304.751716]  ? zap_class+0x640/0x640
[  304.755438]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  304.760464]  ? find_held_lock+0x36/0x1c0
[  304.764541]  ? ____cache_alloc_node+0x1c7/0x1e0
[  304.769212]  ? lock_downgrade+0x900/0x900
[  304.773368]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.778935]  cache_grow_begin+0xa5/0x8c0
[  304.783010]  ? do_raw_spin_unlock+0xa7/0x330
[  304.787430]  fallback_alloc+0x204/0x2e0
[  304.791414]  ____cache_alloc_node+0x1c7/0x1e0
[  304.795934]  kmem_cache_alloc_node+0xe3/0x730
[  304.800525]  ? ipv6_get_ifaddr+0x42e/0x620
[  304.804780]  __alloc_skb+0x119/0x770
[  304.808506]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.813785]  ? netdev_alloc_frag+0x1f0/0x1f0
[  304.818192]  ? lock_downgrade+0x900/0x900
[  304.822347]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.827887]  ? refcount_sub_and_test_checked+0x203/0x310
[  304.833350]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  304.838799]  ? addrconf_rs_timer+0x690/0x690
[  304.843215]  ndisc_alloc_skb+0x144/0x340
[  304.847283]  ndisc_send_rs+0x331/0x6e0
[  304.851179]  addrconf_rs_timer+0x314/0x690
[  304.855423]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.859669]  call_timer_fn+0x272/0x920
[  304.863575]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.867826]  ? process_timeout+0x40/0x40
[  304.871934]  ? mark_held_locks+0xc7/0x130
[  304.876085]  ? _raw_spin_unlock_irq+0x27/0x80
[  304.880582]  ? _raw_spin_unlock_irq+0x27/0x80
[  304.885076]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.889310]  ? lockdep_hardirqs_on+0x296/0x5b0
[  304.893901]  ? trace_hardirqs_on+0xbd/0x310
[  304.898226]  ? kasan_check_read+0x11/0x20
[  304.902372]  ? __run_timers+0x7da/0xc70
[  304.906364]  ? trace_hardirqs_off_caller+0x310/0x310
[  304.911488]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.915724]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.919953]  __run_timers+0x7e5/0xc70
[  304.923770]  ? timer_fixup_init+0x70/0x70
[  304.927932]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  304.932983]  ? zap_class+0x640/0x640
[  304.936700]  ? print_usage_bug+0xc0/0xc0
[  304.940787]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  304.946005]  ? find_held_lock+0x36/0x1c0
[  304.950072]  ? zap_class+0x640/0x640
[  304.953795]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.959335]  ? check_preemption_disabled+0x48/0x280
[  304.964362]  ? __lock_is_held+0xb5/0x140
[  304.968432]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.973976]  ? check_preemption_disabled+0x48/0x280
[  304.979005]  run_timer_softirq+0x52/0xb0
[  304.983064]  ? rcu_read_lock_sched_held+0x14f/0x180
[  304.988081]  __do_softirq+0x308/0xb7e
[  304.991913]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  304.996414]  ? lock_downgrade+0x900/0x900
[  305.000566]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  305.005724]  ? pvclock_read_flags+0x160/0x160
[  305.010241]  ? lapic_next_event+0x5a/0x90
[  305.014406]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.019953]  ? kvm_clock_read+0x18/0x30
[  305.023942]  ? kvm_sched_clock_read+0x9/0x20
[  305.028356]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.033916]  ? check_preemption_disabled+0x48/0x280
[  305.038944]  irq_exit+0x17f/0x1c0
[  305.042405]  smp_apic_timer_interrupt+0x1cb/0x760
[  305.047248]  ? smp_call_function_single_interrupt+0x159/0x650
[  305.053134]  ? smp_call_function_single_interrupt+0x650/0x650
[  305.059022]  ? interrupt_entry+0xb5/0xc0
[  305.063088]  ? trace_hardirqs_off_caller+0xbb/0x310
[  305.068102]  ? trace_hardirqs_off_caller+0xbb/0x310
[  305.073124]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  305.077968]  ? trace_hardirqs_on_caller+0x310/0x310
[  305.082985]  ? trace_hardirqs_on_caller+0x310/0x310
[  305.088006]  ? task_prio+0x50/0x50
[  305.091552]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.097091]  ? check_preemption_disabled+0x48/0x280
[  305.102115]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  305.106978]  apic_timer_interrupt+0xf/0x20
[  305.111204]  </IRQ>
[  305.113452] RIP: 0010:dump_stack+0x358/0x39d
[  305.117864] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  305.136772] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  305.144475] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  305.151755] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  305.159023] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  305.166293] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  305.173566] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  305.180867]  ? dump_stack+0x34f/0x39d
[  305.184686]  ? dump_stack_print_info.cold.1+0x20/0x20
[  305.189904]  ? mark_held_locks+0x130/0x130
[  305.194140]  ? mark_held_locks+0x130/0x130
[  305.198395]  dump_header+0x27b/0xf72
[  305.202130]  ? pagefault_out_of_memory+0x197/0x197
[  305.207072]  ? __lock_acquire+0x62f/0x4c20
[  305.211315]  ? percpu_ref_get_many+0x240/0x240
[  305.215908]  ? print_usage_bug+0xc0/0xc0
[  305.219981]  ? zap_class+0x640/0x640
[  305.223717]  ? print_usage_bug+0xc0/0xc0
[  305.227806]  ? print_usage_bug+0xc0/0xc0
[  305.231884]  ? zap_class+0x640/0x640
[  305.235612]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.241155]  ? find_held_lock+0x36/0x1c0
[  305.245230]  ? mark_held_locks+0xc7/0x130
[  305.249415]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  305.254516]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  305.259623]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  305.264216]  ? trace_hardirqs_on+0xbd/0x310
[  305.268554]  ? kasan_check_read+0x11/0x20
[  305.272706]  ? ___ratelimit+0x3b4/0x672
[  305.276680]  ? trace_hardirqs_off_caller+0x310/0x310
[  305.281785]  ? trace_hardirqs_on+0x310/0x310
[  305.286196]  ? lock_downgrade+0x900/0x900
[  305.290351]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  305.295458]  ? ___ratelimit+0x3b9/0x672
[  305.299433]  ? idr_get_free+0xf70/0xf70
[  305.303429]  ? find_held_lock+0x36/0x1c0
[  305.307503]  oom_kill_process.cold.27+0x10/0x903
[  305.312263]  ? zap_class+0x640/0x640
[  305.315996]  ? check_preemption_disabled+0x48/0x280
[  305.321034]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  305.325964]  ? kasan_check_read+0x11/0x20
[  305.330113]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.335421]  ? oom_evaluate_task+0x540/0x540
[  305.339839]  ? find_held_lock+0x36/0x1c0
[  305.343913]  ? out_of_memory+0x974/0x1430
[  305.348068]  ? lock_downgrade+0x900/0x900
[  305.352216]  ? check_preemption_disabled+0x48/0x280
[  305.357231]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  305.362158]  ? kasan_check_read+0x11/0x20
[  305.366320]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.371607]  ? rcu_softirq_qs+0x20/0x20
[  305.375580]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.381112]  ? oom_evaluate_task+0x302/0x540
[  305.385521]  out_of_memory+0xa84/0x1430
[  305.389501]  ? oom_killer_disable+0x3a0/0x3a0
[  305.394015]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  305.398952]  ? __ww_mutex_check_waiters+0x160/0x160
[  305.403989]  __alloc_pages_slowpath+0x232c/0x2de0
[  305.408862]  ? warn_alloc+0x120/0x120
[  305.412667]  ? mark_held_locks+0x130/0x130
[  305.416936]  ? find_get_entry+0xaae/0x1120
[  305.421234]  ? filemap_map_pages+0x1a20/0x1a20
[  305.425819]  ? zap_class+0x640/0x640
[  305.429542]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.435087]  ? check_preemption_disabled+0x48/0x280
[  305.440119]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.445655]  ? should_fail+0x22d/0xd01
[  305.449575]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  305.454694]  ? zap_class+0x640/0x640
[  305.458436]  ? __lock_is_held+0xb5/0x140
[  305.462508]  ? mark_held_locks+0x130/0x130
[  305.466746]  ? lock_release+0xa00/0xa00
[  305.470755]  ? perf_trace_sched_process_exec+0x860/0x860
[  305.476225]  ? xa_load+0x2ba/0x460
[  305.479766]  ? lock_downgrade+0x900/0x900
[  305.483926]  ? __might_sleep+0x95/0x190
[  305.487918]  __alloc_pages_nodemask+0xad8/0xea0
[  305.492593]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  305.497612]  ? __page_cache_alloc+0x191/0x5c0
[  305.502110]  ? xa_load+0x2e1/0x460
[  305.505651]  ? xa_clear_mark+0x40/0x40
[  305.509539]  ? zap_class+0x640/0x640
[  305.513274]  ? zap_class+0x640/0x640
[  305.516987]  ? zap_class+0x640/0x640
[  305.520699]  ? __do_page_cache_readahead+0x663/0x810
[  305.525808]  ? find_held_lock+0x36/0x1c0
[  305.529874]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  305.535430]  alloc_pages_current+0x173/0x350
[  305.539847]  __page_cache_alloc+0x38c/0x5c0
[  305.544171]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  305.549102]  ? kasan_check_read+0x11/0x20
[  305.553252]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.558671]  ? generic_perform_write+0x6a0/0x6a0
[  305.563441]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.569002]  ? check_preemption_disabled+0x48/0x280
[  305.574030]  filemap_fault+0x1595/0x25f0
[  305.578105]  ? __lock_page_or_retry+0xa00/0xa00
[  305.582777]  ? mark_held_locks+0x130/0x130
[  305.587019]  ? filemap_map_pages+0xd6b/0x1a20
[  305.591518]  ? lock_downgrade+0x900/0x900
[  305.595666]  ? check_preemption_disabled+0x48/0x280
[  305.600692]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  305.605625]  ? kasan_check_read+0x11/0x20
[  305.609783]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.615057]  ? rcu_softirq_qs+0x20/0x20
[  305.619044]  ? filemap_map_pages+0xd92/0x1a20
[  305.623555]  ? find_get_entries_tag+0x1400/0x1400
[  305.628406]  ? debug_object_destroy+0x2b0/0x2b0
[  305.633082]  ? lock_pi_update_atomic+0x150/0x150
[  305.637837]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.643383]  ? lock_acquire+0x1ed/0x520
[  305.647361]  ? ext4_filemap_fault+0x7a/0xad
[  305.651686]  ? lock_release+0xa00/0xa00
[  305.655657]  ? perf_trace_sched_process_exec+0x860/0x860
[  305.661113]  ? print_usage_bug+0xc0/0xc0
[  305.665190]  ? print_usage_bug+0xc0/0xc0
[  305.669261]  ? down_read+0x8d/0x120
[  305.672884]  ? ext4_filemap_fault+0x7a/0xad
[  305.677242]  ? __down_interruptible+0x700/0x700
[  305.681940]  ext4_filemap_fault+0x82/0xad
[  305.686091]  __do_fault+0x100/0x6b0
[  305.689731]  ? find_held_lock+0x36/0x1c0
[  305.693793]  ? pmd_devmap_trans_unstable+0x220/0x220
[  305.698913]  ? mark_held_locks+0x130/0x130
[  305.703150]  ? mark_held_locks+0x130/0x130
[  305.707381]  ? _raw_spin_unlock_irq+0x27/0x80
[  305.711883]  ? _raw_spin_unlock_irq+0x27/0x80
[  305.716413]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  305.720999]  ? kasan_check_read+0x11/0x20
[  305.725148]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.730696]  __handle_mm_fault+0x3ea0/0x5be0
[  305.735113]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  305.739999]  ? finish_task_switch+0x1f4/0x910
[  305.744502]  ? finish_task_switch+0x1b4/0x910
[  305.748996]  ? __switch_to_asm+0x34/0x70
[  305.753066]  ? preempt_notifier_register+0x200/0x200
[  305.758168]  ? __switch_to_asm+0x34/0x70
[  305.762231]  ? __switch_to_asm+0x34/0x70
[  305.766306]  ? zap_class+0x640/0x640
[  305.770019]  ? zap_class+0x640/0x640
[  305.773737]  ? __x64_sys_futex+0x53e/0x6a0
[  305.777994]  ? find_held_lock+0x36/0x1c0
[  305.782065]  ? handle_mm_fault+0x42a/0xc70
[  305.786305]  ? lock_downgrade+0x900/0x900
[  305.790458]  ? check_preemption_disabled+0x48/0x280
[  305.795478]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  305.800410]  ? kasan_check_read+0x11/0x20
[  305.804562]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.809838]  ? rcu_softirq_qs+0x20/0x20
[  305.813814]  ? trace_hardirqs_off_caller+0x310/0x310
[  305.818929]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.824470]  ? check_preemption_disabled+0x48/0x280
[  305.829513]  handle_mm_fault+0x54f/0xc70
[  305.833596]  ? __handle_mm_fault+0x5be0/0x5be0
[  305.838209]  ? find_vma+0x34/0x190
[  305.841759]  __do_page_fault+0x5e8/0xe60
[  305.845839]  ? trace_hardirqs_off+0xb8/0x310
[  305.850256]  do_page_fault+0xf2/0x7e0
[  305.854061]  ? vmalloc_sync_all+0x30/0x30
[  305.858208]  ? error_entry+0x70/0xd0
[  305.861931]  ? trace_hardirqs_off_caller+0xbb/0x310
[  305.866946]  ? trace_hardirqs_on_caller+0xc0/0x310
[  305.871881]  ? syscall_return_slowpath+0x5e0/0x5e0
[  305.876818]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  305.881664]  ? trace_hardirqs_on_caller+0x310/0x310
[  305.886681]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  305.892157]  ? prepare_exit_to_usermode+0x291/0x3b0
[  305.897182]  ? page_fault+0x8/0x30
[  305.900758]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  305.905601]  ? page_fault+0x8/0x30
[  305.909141]  page_fault+0x1e/0x30
[  305.912587] RIP: 0033:0x40f9c0
[  305.915789] Code: Bad RIP value.
[  305.919147] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  305.924504] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  305.931786] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  305.939054] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  305.946320] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  305.953601] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  305.960930] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  305.961008] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  305.967682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  305.967688] Call Trace:
[  305.967710]  dump_stack+0x244/0x39d
[  305.967729]  ? dump_stack_print_info.cold.1+0x20/0x20
[  305.974274] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  305.983589]  warn_alloc.cold.116+0xb7/0x1bd
[  305.986144] syz-fuzzer cpuset=/ mems_allowed=0
[  305.989768]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  306.018940]  ? lock_downgrade+0x900/0x900
[  306.023114]  ? trace_hardirqs_off+0xb8/0x310
[  306.027539]  ? trace_hardirqs_off+0xb8/0x310
[  306.031957]  __alloc_pages_slowpath+0x2651/0x2de0
[  306.036839]  ? warn_alloc+0x120/0x120
[  306.040641]  ? print_usage_bug+0xc0/0xc0
[  306.044716]  ? warn_alloc+0x120/0x120
[  306.048533]  ? warn_alloc+0x120/0x120
[  306.052352]  ? print_usage_bug+0xc0/0xc0
[  306.056416]  ? print_usage_bug+0xc0/0xc0
[  306.060483]  ? __lock_acquire+0x62f/0x4c20
[  306.064726]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.070265]  ? should_fail+0x22d/0xd01
[  306.074160]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  306.079262]  ? __lock_acquire+0x62f/0x4c20
[  306.083505]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  306.088611]  ? __lock_acquire+0x62f/0x4c20
[  306.092846]  ? should_fail+0x22d/0xd01
[  306.096732]  ? find_held_lock+0x36/0x1c0
[  306.100801]  ? mark_held_locks+0x130/0x130
[  306.105043]  ? mark_held_locks+0x130/0x130
[  306.109281]  ? zap_class+0x640/0x640
[  306.112995]  ? zap_class+0x640/0x640
[  306.116712]  ? print_usage_bug+0xc0/0xc0
[  306.120771]  ? do_raw_spin_unlock+0xa7/0x330
[  306.125198]  ? zap_class+0x640/0x640
[  306.128922]  ? print_usage_bug+0xc0/0xc0
[  306.133002]  ? wq_watchdog_touch+0x9c/0xfe
[  306.137244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.142798]  ? check_preemption_disabled+0x48/0x280
[  306.147822]  ? __lock_is_held+0xb5/0x140
[  306.151951]  __alloc_pages_nodemask+0xad8/0xea0
[  306.156631]  ? zap_class+0x640/0x640
[  306.160352]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  306.165385]  ? find_held_lock+0x36/0x1c0
[  306.169459]  ? ____cache_alloc_node+0x1c7/0x1e0
[  306.174131]  ? lock_downgrade+0x900/0x900
[  306.178286]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.183832]  cache_grow_begin+0xa5/0x8c0
[  306.187920]  ? do_raw_spin_unlock+0xa7/0x330
[  306.192336]  fallback_alloc+0x204/0x2e0
[  306.196316]  ____cache_alloc_node+0x1c7/0x1e0
[  306.200820]  kmem_cache_alloc_node+0xe3/0x730
[  306.205319]  ? ipv6_get_ifaddr+0x42e/0x620
[  306.209562]  __alloc_skb+0x119/0x770
[  306.213277]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.218558]  ? netdev_alloc_frag+0x1f0/0x1f0
[  306.222995]  ? lock_downgrade+0x900/0x900
[  306.227148]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.232686]  ? refcount_sub_and_test_checked+0x203/0x310
[  306.238142]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  306.243606]  ? addrconf_rs_timer+0x690/0x690
[  306.248044]  ndisc_alloc_skb+0x144/0x340
[  306.252109]  ndisc_send_rs+0x331/0x6e0
[  306.256003]  addrconf_rs_timer+0x314/0x690
[  306.260279]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.264522]  call_timer_fn+0x272/0x920
[  306.268409]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.272643]  ? process_timeout+0x40/0x40
[  306.276716]  ? __run_timers+0x7da/0xc70
[  306.280694]  ? _raw_spin_unlock_irq+0x27/0x80
[  306.285187]  ? _raw_spin_unlock_irq+0x27/0x80
[  306.289680]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.293959]  ? lockdep_hardirqs_on+0x296/0x5b0
[  306.298545]  ? trace_hardirqs_on+0xbd/0x310
[  306.302868]  ? kasan_check_read+0x11/0x20
[  306.307026]  ? __run_timers+0x7da/0xc70
[  306.311003]  ? trace_hardirqs_off_caller+0x310/0x310
[  306.316129]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.320405]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.324641]  __run_timers+0x7e5/0xc70
[  306.328452]  ? timer_fixup_init+0x70/0x70
[  306.332616]  ? _raw_spin_unlock_irq+0x27/0x80
[  306.337106]  ? _raw_spin_unlock_irq+0x27/0x80
[  306.341624]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  306.346226]  ? trace_hardirqs_on+0xbd/0x310
[  306.350548]  ? kasan_check_read+0x11/0x20
[  306.354701]  ? finish_task_switch+0x1f4/0x910
[  306.359197]  ? trace_hardirqs_off_caller+0x310/0x310
[  306.364303]  ? compat_start_thread+0x80/0x80
[  306.368733]  ? pvclock_read_flags+0x160/0x160
[  306.373227]  ? __switch_to_asm+0x34/0x70
[  306.377293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.382842]  ? check_preemption_disabled+0x48/0x280
[  306.387865]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  306.393433]  ? rcu_pm_notify+0xc0/0xc0
[  306.397326]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.402908]  ? check_preemption_disabled+0x48/0x280
[  306.407977]  run_timer_softirq+0x52/0xb0
[  306.412041]  ? rcu_read_lock_sched_held+0x14f/0x180
[  306.417061]  __do_softirq+0x308/0xb7e
[  306.420865]  ? trace_hardirqs_on_caller+0xc0/0x310
[  306.425813]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  306.431409]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  306.436859]  ? trace_hardirqs_on+0x310/0x310
[  306.441281]  ? schedule+0x108/0x460
[  306.444969]  ? trace_hardirqs_off+0xb8/0x310
[  306.449379]  ? smpboot_thread_fn+0x68b/0xa00
[  306.453821]  ? trace_hardirqs_on+0x310/0x310
[  306.458243]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.463921]  ? check_preemption_disabled+0x48/0x280
[  306.468960]  ? takeover_tasklets+0xa90/0xa90
[  306.473373]  run_ksoftirqd+0x5e/0x100
[  306.477175]  smpboot_thread_fn+0x68b/0xa00
[  306.481414]  ? sort_range+0x30/0x30
[  306.485047]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  306.490149]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.495703]  ? __kthread_parkme+0xfb/0x1a0
[  306.499957]  ? sort_range+0x30/0x30
[  306.503583]  kthread+0x35a/0x440
[  306.507006]  ? kthread_stop+0x900/0x900
[  306.510991]  ret_from_fork+0x3a/0x50
[  306.514738] warn_alloc_show_mem: 1 callbacks suppressed
[  306.514750] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  306.514752] Mem-Info:
[  306.514783] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  306.514783]  active_file:12 inactive_file:14 isolated_file:0
[  306.514783]  unevictable:0 dirty:0 writeback:0 unstable:0
[  306.514783]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  306.514783]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  306.514783]  free:13757 free_pcp:113 free_cma:0
[  306.520124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  306.527054] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  306.529455] Call Trace:
[  306.562495] 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
[  306.572314]  <IRQ>
[  306.600159] lowmem_reserve[]: 0 2818 6321 6321
[  306.602742]  dump_stack+0x244/0x39d
[  306.628822] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  306.630971]  ? dump_stack_print_info.cold.1+0x20/0x20
[  306.635522] lowmem_reserve[]: 0 0 3503 3503
[  306.639150]  warn_alloc.cold.116+0xb7/0x1bd
[  306.666647] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  306.671850]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  306.676162] lowmem_reserve[]: 0 0 0 0
[  306.680497]  ? lock_downgrade+0x900/0x900
[  306.709548] 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
[  306.714417]  ? trace_hardirqs_off+0xb8/0x310
[  306.718183] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  306.722343]  ? trace_hardirqs_off+0xb8/0x310
[  306.735858] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  306.740266]  __alloc_pages_slowpath+0x2651/0x2de0
[  306.755768] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  306.760184]  ? warn_alloc+0x120/0x120
[  306.774718] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  306.774727] 4236 total pagecache pages
[  306.779621]  ? print_usage_bug+0xc0/0xc0
[  306.788440] 0 pages in swap cache
[  306.792228]  ? warn_alloc+0x120/0x120
[  306.800788] Swap cache stats: add 0, delete 0, find 0/0
[  306.804664]  ? warn_alloc+0x120/0x120
[  306.808701] Free swap  = 0kB
[  306.812143]  ? print_usage_bug+0xc0/0xc0
[  306.815927] Total swap = 0kB
[  306.821282]  ? print_usage_bug+0xc0/0xc0
[  306.825060] 1965979 pages RAM
[  306.828070]  ? __lock_acquire+0x62f/0x4c20
[  306.832125] 0 pages HighMem/MovableOnly
[  306.835141]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.839178] 342854 pages reserved
[  306.842314]  ? should_fail+0x22d/0xd01
[  306.846519] 0 pages cma reserved
[  306.850485]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  306.856083] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  306.859447]  ? __lock_acquire+0x62f/0x4c20
[  306.863370] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  306.866673]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  306.871765] ksoftirqd/0 cpuset=/ mems_allowed=0
[  306.878249]  ? __lock_acquire+0x62f/0x4c20
[  306.906719]  ? should_fail+0x22d/0xd01
[  306.910608]  ? find_held_lock+0x36/0x1c0
[  306.914683]  ? mark_held_locks+0x130/0x130
[  306.918942]  ? mark_held_locks+0x130/0x130
[  306.923180]  ? zap_class+0x640/0x640
[  306.926906]  ? zap_class+0x640/0x640
[  306.930626]  ? print_usage_bug+0xc0/0xc0
[  306.934685]  ? do_raw_spin_unlock+0xa7/0x330
[  306.939095]  ? zap_class+0x640/0x640
[  306.942812]  ? print_usage_bug+0xc0/0xc0
[  306.946885]  ? wq_watchdog_touch+0x9c/0xfe
[  306.951194]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.956744]  ? check_preemption_disabled+0x48/0x280
[  306.961789]  ? __lock_is_held+0xb5/0x140
[  306.965861]  __alloc_pages_nodemask+0xad8/0xea0
[  306.970569]  ? zap_class+0x640/0x640
[  306.974290]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  306.979322]  ? find_held_lock+0x36/0x1c0
[  306.983394]  ? ____cache_alloc_node+0x1c7/0x1e0
[  306.988067]  ? lock_downgrade+0x900/0x900
[  306.992250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.997826]  cache_grow_begin+0xa5/0x8c0
[  307.001910]  ? do_raw_spin_unlock+0xa7/0x330
[  307.006346]  fallback_alloc+0x204/0x2e0
[  307.010331]  ____cache_alloc_node+0x1c7/0x1e0
[  307.014834]  kmem_cache_alloc_node+0xe3/0x730
[  307.019336]  ? ipv6_get_ifaddr+0x42e/0x620
[  307.023582]  __alloc_skb+0x119/0x770
[  307.027296]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.032577]  ? netdev_alloc_frag+0x1f0/0x1f0
[  307.036985]  ? lock_downgrade+0x900/0x900
[  307.041143]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.046683]  ? refcount_sub_and_test_checked+0x203/0x310
[  307.052135]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  307.057584]  ? addrconf_rs_timer+0x690/0x690
[  307.062022]  ndisc_alloc_skb+0x144/0x340
[  307.066088]  ndisc_send_rs+0x331/0x6e0
[  307.069998]  addrconf_rs_timer+0x314/0x690
[  307.074253]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.078503]  call_timer_fn+0x272/0x920
[  307.082409]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.086676]  ? process_timeout+0x40/0x40
[  307.090751]  ? mark_held_locks+0xc7/0x130
[  307.094911]  ? _raw_spin_unlock_irq+0x27/0x80
[  307.099414]  ? _raw_spin_unlock_irq+0x27/0x80
[  307.103918]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.108154]  ? lockdep_hardirqs_on+0x296/0x5b0
[  307.112757]  ? trace_hardirqs_on+0xbd/0x310
[  307.117095]  ? kasan_check_read+0x11/0x20
[  307.121243]  ? __run_timers+0x7da/0xc70
[  307.125227]  ? trace_hardirqs_off_caller+0x310/0x310
[  307.130344]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.134580]  __run_timers+0x7e5/0xc70
[  307.138393]  ? timer_fixup_init+0x70/0x70
[  307.142547]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  307.147576]  ? zap_class+0x640/0x640
[  307.151294]  ? print_usage_bug+0xc0/0xc0
[  307.155369]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  307.160569]  ? find_held_lock+0x36/0x1c0
[  307.164638]  ? zap_class+0x640/0x640
[  307.168372]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.173969]  ? check_preemption_disabled+0x48/0x280
[  307.179052]  ? __lock_is_held+0xb5/0x140
[  307.183118]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.188660]  ? check_preemption_disabled+0x48/0x280
[  307.193698]  run_timer_softirq+0x52/0xb0
[  307.197759]  ? rcu_read_lock_sched_held+0x14f/0x180
[  307.202774]  __do_softirq+0x308/0xb7e
[  307.206593]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  307.211102]  ? lock_downgrade+0x900/0x900
[  307.215253]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  307.220368]  ? pvclock_read_flags+0x160/0x160
[  307.224869]  ? lapic_next_event+0x5a/0x90
[  307.229026]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.234572]  ? kvm_clock_read+0x18/0x30
[  307.238554]  ? kvm_sched_clock_read+0x9/0x20
[  307.242970]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.248511]  ? check_preemption_disabled+0x48/0x280
[  307.253540]  irq_exit+0x17f/0x1c0
[  307.257011]  smp_apic_timer_interrupt+0x1cb/0x760
[  307.261874]  ? smp_call_function_single_interrupt+0x159/0x650
[  307.267817]  ? smp_call_function_single_interrupt+0x650/0x650
[  307.273725]  ? interrupt_entry+0xb5/0xc0
[  307.277801]  ? trace_hardirqs_off_caller+0xbb/0x310
[  307.282839]  ? trace_hardirqs_off_caller+0xbb/0x310
[  307.287853]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  307.292698]  ? trace_hardirqs_on_caller+0x310/0x310
[  307.297719]  ? trace_hardirqs_on_caller+0x310/0x310
[  307.302742]  ? task_prio+0x50/0x50
[  307.306282]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.311820]  ? check_preemption_disabled+0x48/0x280
[  307.316841]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  307.321721]  apic_timer_interrupt+0xf/0x20
[  307.325953]  </IRQ>
[  307.328193] RIP: 0010:dump_stack+0x358/0x39d
[  307.332605] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  307.351502] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  307.359208] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  307.366481] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  307.373779] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  307.381051] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  307.388321] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  307.395621]  ? dump_stack+0x34f/0x39d
[  307.399441]  ? dump_stack_print_info.cold.1+0x20/0x20
[  307.404632]  ? mark_held_locks+0x130/0x130
[  307.408922]  ? mark_held_locks+0x130/0x130
[  307.413219]  dump_header+0x27b/0xf72
[  307.416980]  ? pagefault_out_of_memory+0x197/0x197
[  307.421933]  ? __lock_acquire+0x62f/0x4c20
[  307.426177]  ? percpu_ref_get_many+0x240/0x240
[  307.430780]  ? print_usage_bug+0xc0/0xc0
[  307.434860]  ? zap_class+0x640/0x640
[  307.438585]  ? print_usage_bug+0xc0/0xc0
[  307.442662]  ? print_usage_bug+0xc0/0xc0
[  307.446727]  ? zap_class+0x640/0x640
[  307.450463]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.456002]  ? find_held_lock+0x36/0x1c0
[  307.460074]  ? mark_held_locks+0xc7/0x130
[  307.464223]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  307.469339]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  307.474448]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  307.479033]  ? trace_hardirqs_on+0xbd/0x310
[  307.483355]  ? kasan_check_read+0x11/0x20
[  307.487519]  ? ___ratelimit+0x3b4/0x672
[  307.491495]  ? trace_hardirqs_off_caller+0x310/0x310
[  307.496602]  ? trace_hardirqs_on+0x310/0x310
[  307.501012]  ? lock_downgrade+0x900/0x900
[  307.505166]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  307.510295]  ? ___ratelimit+0x3b9/0x672
[  307.514280]  ? idr_get_free+0xf70/0xf70
[  307.518254]  ? find_held_lock+0x36/0x1c0
[  307.522325]  oom_kill_process.cold.27+0x10/0x903
[  307.527084]  ? zap_class+0x640/0x640
[  307.530800]  ? check_preemption_disabled+0x48/0x280
[  307.535838]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  307.540766]  ? kasan_check_read+0x11/0x20
[  307.544922]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.550200]  ? oom_evaluate_task+0x540/0x540
[  307.554629]  ? find_held_lock+0x36/0x1c0
[  307.558727]  ? out_of_memory+0x974/0x1430
[  307.562881]  ? lock_downgrade+0x900/0x900
[  307.567038]  ? check_preemption_disabled+0x48/0x280
[  307.572070]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  307.577010]  ? kasan_check_read+0x11/0x20
[  307.581162]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.586439]  ? rcu_softirq_qs+0x20/0x20
[  307.590436]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.596002]  ? oom_evaluate_task+0x302/0x540
[  307.600422]  out_of_memory+0xa84/0x1430
[  307.604424]  ? oom_killer_disable+0x3a0/0x3a0
[  307.608935]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  307.613870]  ? __ww_mutex_check_waiters+0x160/0x160
[  307.618913]  __alloc_pages_slowpath+0x232c/0x2de0
[  307.623785]  ? warn_alloc+0x120/0x120
[  307.627586]  ? mark_held_locks+0x130/0x130
[  307.631825]  ? find_get_entry+0xaae/0x1120
[  307.636077]  ? filemap_map_pages+0x1a20/0x1a20
[  307.640679]  ? zap_class+0x640/0x640
[  307.644419]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.649975]  ? check_preemption_disabled+0x48/0x280
[  307.654992]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.660533]  ? should_fail+0x22d/0xd01
[  307.664428]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  307.669592]  ? zap_class+0x640/0x640
[  307.673332]  ? __lock_is_held+0xb5/0x140
[  307.677405]  ? mark_held_locks+0x130/0x130
[  307.681644]  ? lock_release+0xa00/0xa00
[  307.685624]  ? perf_trace_sched_process_exec+0x860/0x860
[  307.691075]  ? xa_load+0x2ba/0x460
[  307.694633]  ? lock_downgrade+0x900/0x900
[  307.698821]  ? __might_sleep+0x95/0x190
[  307.702800]  __alloc_pages_nodemask+0xad8/0xea0
[  307.707478]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  307.712492]  ? __page_cache_alloc+0x191/0x5c0
[  307.717016]  ? xa_load+0x2e1/0x460
[  307.720603]  ? xa_clear_mark+0x40/0x40
[  307.724508]  ? zap_class+0x640/0x640
[  307.728231]  ? zap_class+0x640/0x640
[  307.731945]  ? zap_class+0x640/0x640
[  307.735661]  ? __do_page_cache_readahead+0x663/0x810
[  307.740769]  ? find_held_lock+0x36/0x1c0
[  307.744838]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  307.750384]  alloc_pages_current+0x173/0x350
[  307.754805]  __page_cache_alloc+0x38c/0x5c0
[  307.759129]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  307.764058]  ? kasan_check_read+0x11/0x20
[  307.768207]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.773510]  ? generic_perform_write+0x6a0/0x6a0
[  307.778271]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.783814]  ? check_preemption_disabled+0x48/0x280
[  307.788842]  filemap_fault+0x1595/0x25f0
[  307.792926]  ? __lock_page_or_retry+0xa00/0xa00
[  307.797599]  ? mark_held_locks+0x130/0x130
[  307.801849]  ? filemap_map_pages+0xd6b/0x1a20
[  307.806356]  ? lock_downgrade+0x900/0x900
[  307.810517]  ? check_preemption_disabled+0x48/0x280
[  307.815535]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  307.820516]  ? kasan_check_read+0x11/0x20
[  307.824668]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.829951]  ? rcu_softirq_qs+0x20/0x20
[  307.833939]  ? filemap_map_pages+0xd92/0x1a20
[  307.838451]  ? find_get_entries_tag+0x1400/0x1400
[  307.843301]  ? debug_object_destroy+0x2b0/0x2b0
[  307.847974]  ? lock_pi_update_atomic+0x150/0x150
[  307.852728]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.858276]  ? lock_acquire+0x1ed/0x520
[  307.862253]  ? ext4_filemap_fault+0x7a/0xad
[  307.866582]  ? lock_release+0xa00/0xa00
[  307.870556]  ? perf_trace_sched_process_exec+0x860/0x860
[  307.876020]  ? print_usage_bug+0xc0/0xc0
[  307.880084]  ? print_usage_bug+0xc0/0xc0
[  307.884161]  ? down_read+0x8d/0x120
[  307.887787]  ? ext4_filemap_fault+0x7a/0xad
[  307.892110]  ? __down_interruptible+0x700/0x700
[  307.896788]  ext4_filemap_fault+0x82/0xad
[  307.900943]  __do_fault+0x100/0x6b0
[  307.904569]  ? find_held_lock+0x36/0x1c0
[  307.908641]  ? pmd_devmap_trans_unstable+0x220/0x220
[  307.913754]  ? mark_held_locks+0x130/0x130
[  307.917995]  ? mark_held_locks+0x130/0x130
[  307.922243]  ? _raw_spin_unlock_irq+0x27/0x80
[  307.926738]  ? _raw_spin_unlock_irq+0x27/0x80
[  307.931250]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  307.935838]  ? kasan_check_read+0x11/0x20
[  307.939987]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.945527]  __handle_mm_fault+0x3ea0/0x5be0
[  307.949961]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  307.954841]  ? finish_task_switch+0x1f4/0x910
[  307.959339]  ? finish_task_switch+0x1b4/0x910
[  307.963846]  ? __switch_to_asm+0x34/0x70
[  307.967918]  ? preempt_notifier_register+0x200/0x200
[  307.973034]  ? __switch_to_asm+0x34/0x70
[  307.977095]  ? __switch_to_asm+0x34/0x70
[  307.981170]  ? zap_class+0x640/0x640
[  307.984884]  ? zap_class+0x640/0x640
[  307.988606]  ? __x64_sys_futex+0x53e/0x6a0
[  307.992849]  ? find_held_lock+0x36/0x1c0
[  307.996951]  ? handle_mm_fault+0x42a/0xc70
[  308.001186]  ? lock_downgrade+0x900/0x900
[  308.005340]  ? check_preemption_disabled+0x48/0x280
[  308.010358]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  308.015289]  ? kasan_check_read+0x11/0x20
[  308.019437]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  308.024718]  ? rcu_softirq_qs+0x20/0x20
[  308.028695]  ? trace_hardirqs_off_caller+0x310/0x310
[  308.033797]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  308.039353]  ? check_preemption_disabled+0x48/0x280
[  308.044373]  handle_mm_fault+0x54f/0xc70
[  308.048445]  ? __handle_mm_fault+0x5be0/0x5be0
[  308.053036]  ? find_vma+0x34/0x190
[  308.056598]  __do_page_fault+0x5e8/0xe60
[  308.060657]  ? trace_hardirqs_off+0xb8/0x310
[  308.065074]  do_page_fault+0xf2/0x7e0
[  308.068878]  ? vmalloc_sync_all+0x30/0x30
[  308.073034]  ? error_entry+0x70/0xd0
[  308.076751]  ? trace_hardirqs_off_caller+0xbb/0x310
[  308.081777]  ? trace_hardirqs_on_caller+0xc0/0x310
[  308.086722]  ? syscall_return_slowpath+0x5e0/0x5e0
[  308.091650]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  308.096495]  ? trace_hardirqs_on_caller+0x310/0x310
[  308.101528]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  308.106983]  ? prepare_exit_to_usermode+0x291/0x3b0
[  308.112005]  ? page_fault+0x8/0x30
[  308.115553]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  308.120398]  ? page_fault+0x8/0x30
[  308.123948]  page_fault+0x1e/0x30
[  308.127397] RIP: 0033:0x40f9c0
[  308.130618] Code: Bad RIP value.
[  308.133978] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  308.139344] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  308.146609] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  308.153898] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  308.161170] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  308.168434] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  308.175737] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  308.175827] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  308.182514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  308.182523] Call Trace:
[  308.189082] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  308.198355]  dump_stack+0x244/0x39d
[  308.200918] syz-fuzzer cpuset=/ mems_allowed=0
[  308.211142]  ? dump_stack_print_info.cold.1+0x20/0x20
[  308.224520]  warn_alloc.cold.116+0xb7/0x1bd
[  308.228845]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  308.233726]  ? lock_downgrade+0x900/0x900
[  308.237881]  ? trace_hardirqs_off+0xb8/0x310
[  308.242308]  ? trace_hardirqs_off+0xb8/0x310
[  308.246727]  __alloc_pages_slowpath+0x2651/0x2de0
[  308.251663]  ? warn_alloc+0x120/0x120
[  308.255467]  ? print_usage_bug+0xc0/0xc0
[  308.259534]  ? warn_alloc+0x120/0x120
[  308.263342]  ? warn_alloc+0x120/0x120
[  308.267145]  ? print_usage_bug+0xc0/0xc0
[  308.271233]  ? print_usage_bug+0xc0/0xc0
[  308.275311]  ? __lock_acquire+0x62f/0x4c20
[  308.279570]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  308.285126]  ? should_fail+0x22d/0xd01
[  308.289036]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  308.294145]  ? __lock_acquire+0x62f/0x4c20
[  308.298385]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  308.303518]  ? __lock_acquire+0x62f/0x4c20
[  308.307763]  ? should_fail+0x22d/0xd01
[  308.311649]  ? find_held_lock+0x36/0x1c0
[  308.315738]  ? mark_held_locks+0x130/0x130
[  308.319981]  ? mark_held_locks+0x130/0x130
[  308.324246]  ? zap_class+0x640/0x640
[  308.327972]  ? zap_class+0x640/0x640
[  308.331687]  ? print_usage_bug+0xc0/0xc0
[  308.335759]  ? do_raw_spin_unlock+0xa7/0x330
[  308.340168]  ? zap_class+0x640/0x640
[  308.343909]  ? print_usage_bug+0xc0/0xc0
[  308.347971]  ? wq_watchdog_touch+0x9c/0xfe
[  308.352211]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.357766]  ? check_preemption_disabled+0x48/0x280
[  308.362815]  ? __lock_is_held+0xb5/0x140
[  308.366913]  __alloc_pages_nodemask+0xad8/0xea0
[  308.371584]  ? zap_class+0x640/0x640
[  308.375303]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  308.380336]  ? find_held_lock+0x36/0x1c0
[  308.384404]  ? ____cache_alloc_node+0x1c7/0x1e0
[  308.389077]  ? lock_downgrade+0x900/0x900
[  308.393232]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.398807]  cache_grow_begin+0xa5/0x8c0
[  308.402869]  ? do_raw_spin_unlock+0xa7/0x330
[  308.407312]  fallback_alloc+0x204/0x2e0
[  308.411295]  ____cache_alloc_node+0x1c7/0x1e0
[  308.415836]  kmem_cache_alloc_node+0xe3/0x730
[  308.420330]  ? ipv6_get_ifaddr+0x42e/0x620
[  308.424575]  __alloc_skb+0x119/0x770
[  308.428290]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  308.434085]  ? netdev_alloc_frag+0x1f0/0x1f0
[  308.438600]  ? lock_downgrade+0x900/0x900
[  308.442757]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.448314]  ? refcount_sub_and_test_checked+0x203/0x310
[  308.453784]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  308.459238]  ? addrconf_rs_timer+0x690/0x690
[  308.463691]  ndisc_alloc_skb+0x144/0x340
[  308.467758]  ndisc_send_rs+0x331/0x6e0
[  308.471653]  addrconf_rs_timer+0x314/0x690
[  308.475935]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.480183]  call_timer_fn+0x272/0x920
[  308.484085]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.488352]  ? process_timeout+0x40/0x40
[  308.492418]  ? __run_timers+0x7da/0xc70
[  308.496406]  ? _raw_spin_unlock_irq+0x27/0x80
[  308.500923]  ? _raw_spin_unlock_irq+0x27/0x80
[  308.505418]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.509657]  ? lockdep_hardirqs_on+0x296/0x5b0
[  308.514240]  ? trace_hardirqs_on+0xbd/0x310
[  308.518560]  ? kasan_check_read+0x11/0x20
[  308.522705]  ? __run_timers+0x7da/0xc70
[  308.526709]  ? trace_hardirqs_off_caller+0x310/0x310
[  308.531831]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.536075]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.540309]  __run_timers+0x7e5/0xc70
[  308.544124]  ? timer_fixup_init+0x70/0x70
[  308.548272]  ? _raw_spin_unlock_irq+0x27/0x80
[  308.552765]  ? _raw_spin_unlock_irq+0x27/0x80
[  308.557280]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  308.561875]  ? trace_hardirqs_on+0xbd/0x310
[  308.566419]  ? kasan_check_read+0x11/0x20
[  308.570617]  ? finish_task_switch+0x1f4/0x910
[  308.575113]  ? trace_hardirqs_off_caller+0x310/0x310
[  308.580229]  ? compat_start_thread+0x80/0x80
[  308.584660]  ? pvclock_read_flags+0x160/0x160
[  308.589152]  ? __switch_to_asm+0x34/0x70
[  308.593219]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.598776]  ? check_preemption_disabled+0x48/0x280
[  308.603835]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  308.609393]  ? rcu_pm_notify+0xc0/0xc0
[  308.613284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.618826]  ? check_preemption_disabled+0x48/0x280
[  308.623845]  run_timer_softirq+0x52/0xb0
[  308.627920]  ? rcu_read_lock_sched_held+0x14f/0x180
[  308.632941]  __do_softirq+0x308/0xb7e
[  308.636747]  ? trace_hardirqs_on_caller+0xc0/0x310
[  308.641681]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  308.646795]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  308.652244]  ? trace_hardirqs_on+0x310/0x310
[  308.656679]  ? schedule+0x108/0x460
[  308.660320]  ? trace_hardirqs_off+0xb8/0x310
[  308.664732]  ? smpboot_thread_fn+0x68b/0xa00
[  308.669143]  ? trace_hardirqs_on+0x310/0x310
[  308.673557]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  308.679096]  ? check_preemption_disabled+0x48/0x280
[  308.684116]  ? takeover_tasklets+0xa90/0xa90
[  308.688529]  run_ksoftirqd+0x5e/0x100
[  308.692333]  smpboot_thread_fn+0x68b/0xa00
[  308.696570]  ? sort_range+0x30/0x30
[  308.700215]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  308.705315]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  308.710853]  ? __kthread_parkme+0xfb/0x1a0
[  308.715121]  ? sort_range+0x30/0x30
[  308.718747]  kthread+0x35a/0x440
[  308.722156]  ? kthread_stop+0x900/0x900
[  308.726137]  ret_from_fork+0x3a/0x50
[  308.729871] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  308.729876] warn_alloc_show_mem: 1 callbacks suppressed
[  308.729883] Mem-Info:
[  308.736816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  308.742187] active_anon:47337 inactive_anon:4153 isolated_anon:0
[  308.742187]  active_file:12 inactive_file:14 isolated_file:0
[  308.742187]  unevictable:0 dirty:0 writeback:0 unstable:0
[  308.742187]  slab_reclaimable:9045 slab_unreclaimable:1457226
[  308.742187]  mapped:40962 shmem:4210 pagetables:625 bounce:0
[  308.742187]  free:13757 free_pcp:113 free_cma:0
[  308.744564] Call Trace:
[  308.753977] Node 0 active_anon:189348kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163848kB dirty:0kB writeback:0kB shmem:16840kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 141312kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  308.786993]  <IRQ>
[  308.789563] 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
[  308.817437]  dump_stack+0x244/0x39d
[  308.819578] lowmem_reserve[]: 0 2818 6321 6321
[  308.845714]  ? dump_stack_print_info.cold.1+0x20/0x20
[  308.849319] Node 0 DMA32 free:25192kB min:30052kB low:37564kB high:45076kB active_anon:10240kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  308.853910]  warn_alloc.cold.116+0xb7/0x1bd
[  308.859074] lowmem_reserve[]: 0 0 3503 3503
[  308.886573]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  308.890869] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:179108kB inactive_anon:16612kB active_file:48kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6784kB pagetables:2500kB bounce:0kB free_pcp:452kB local_pcp:124kB free_cma:0kB
[  308.895207]  ? lock_downgrade+0x900/0x900
[  308.900032] lowmem_reserve[]: 0 0 0 0
[  308.929096]  ? trace_hardirqs_off+0xb8/0x310
[  308.933218] 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
[  308.937019]  ? trace_hardirqs_off+0xb8/0x310
[  308.941425] Node 0 DMA32: 6*4kB (UM) 2*8kB (UM) 4*16kB (UMH) 6*32kB (UMH) 5*64kB (UM) 2*128kB (M) 3*256kB (MH) 2*512kB (M) 4*1024kB (MH) 1*2048kB (M) 4*4096kB (M) = 25192kB
[  308.954961]  __alloc_pages_slowpath+0x2651/0x2de0
[  308.959342] Node 0 Normal: 1006*4kB (UMEH) 436*8kB (UME) 213*16kB (ME) 72*32kB (UME) 9*64kB (UM) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13928kB
[  308.974873]  ? warn_alloc+0x120/0x120
[  308.979695] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  308.994265]  ? print_usage_bug+0xc0/0xc0
[  308.998045] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  309.006870]  ? warn_alloc+0x120/0x120
[  309.010918] 4236 total pagecache pages
[  309.019485]  ? warn_alloc+0x120/0x120
[  309.023265] 0 pages in swap cache
[  309.027141]  ? print_usage_bug+0xc0/0xc0
[  309.030925] Swap cache stats: add 0, delete 0, find 0/0
[  309.034372]  ? kvm_clock_read+0x18/0x30
[  309.038406] Free swap  = 0kB
[  309.038414] Total swap = 0kB
[  309.043813]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  309.047758] 1965979 pages RAM
[  309.050781]  ? print_usage_bug+0xc0/0xc0
[  309.053777] 0 pages HighMem/MovableOnly
[  309.058800]  ? __lock_acquire+0x62f/0x4c20
[  309.061881] 342854 pages reserved
[  309.065943]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.069907] 0 pages cma reserved
[  309.074134]  ? should_fail+0x22d/0xd01
[  309.077647] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  309.083104]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.083122]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  309.086577] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  309.090417]  ? __lock_acquire+0x62f/0x4c20
[  309.096883] ksoftirqd/0 cpuset=/ mems_allowed=0
[  309.102165]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  309.131679]  ? __lock_acquire+0x62f/0x4c20
[  309.135932]  ? should_fail+0x22d/0xd01
[  309.139833]  ? rcu_irq_exit+0x1a2/0x390
[  309.143816]  ? mark_held_locks+0x130/0x130
[  309.148059]  ? mark_held_locks+0x130/0x130
[  309.152301]  ? mark_held_locks+0xc7/0x130
[  309.156448]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  309.161464]  ? zap_class+0x640/0x640
[  309.165180]  ? print_usage_bug+0xc0/0xc0
[  309.169250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.174792]  ? check_preemption_disabled+0x48/0x280
[  309.179822]  ? __lock_is_held+0xb5/0x140
[  309.183900]  __alloc_pages_nodemask+0xad8/0xea0
[  309.188571]  ? zap_class+0x640/0x640
[  309.192289]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  309.197317]  ? find_held_lock+0x36/0x1c0
[  309.201418]  ? ____cache_alloc_node+0x1c7/0x1e0
[  309.206087]  ? lock_downgrade+0x900/0x900
[  309.210248]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.215790]  cache_grow_begin+0xa5/0x8c0
[  309.219851]  ? do_raw_spin_unlock+0xa7/0x330
[  309.224272]  fallback_alloc+0x204/0x2e0
[  309.228255]  ____cache_alloc_node+0x1c7/0x1e0
[  309.232756]  kmem_cache_alloc_node+0xe3/0x730
[  309.237255]  ? ipv6_get_ifaddr+0x42e/0x620
[  309.241506]  __alloc_skb+0x119/0x770
[  309.245220]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.250506]  ? netdev_alloc_frag+0x1f0/0x1f0
[  309.254921]  ? lock_downgrade+0x900/0x900
[  309.259084]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.264625]  ? refcount_sub_and_test_checked+0x203/0x310
[  309.270081]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  309.275570]  ? addrconf_rs_timer+0x690/0x690
[  309.280008]  ndisc_alloc_skb+0x144/0x340
[  309.284072]  ndisc_send_rs+0x331/0x6e0
[  309.287965]  addrconf_rs_timer+0x314/0x690
[  309.292207]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.296483]  call_timer_fn+0x272/0x920
[  309.300399]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.304647]  ? process_timeout+0x40/0x40
[  309.308729]  ? mark_held_locks+0xc7/0x130
[  309.312884]  ? _raw_spin_unlock_irq+0x27/0x80
[  309.317420]  ? _raw_spin_unlock_irq+0x27/0x80
[  309.321929]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.326167]  ? lockdep_hardirqs_on+0x296/0x5b0
[  309.330754]  ? trace_hardirqs_on+0xbd/0x310
[  309.335080]  ? kasan_check_read+0x11/0x20
[  309.339225]  ? __run_timers+0x7da/0xc70
[  309.343201]  ? trace_hardirqs_off_caller+0x310/0x310
[  309.348313]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.352554]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.356786]  __run_timers+0x7e5/0xc70
[  309.360615]  ? timer_fixup_init+0x70/0x70
[  309.364764]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  309.369783]  ? zap_class+0x640/0x640
[  309.373503]  ? print_usage_bug+0xc0/0xc0
[  309.377568]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  309.382780]  ? find_held_lock+0x36/0x1c0
[  309.386859]  ? zap_class+0x640/0x640
[  309.390586]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.396157]  ? check_preemption_disabled+0x48/0x280
[  309.401183]  ? __lock_is_held+0xb5/0x140
[  309.405249]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.410787]  ? check_preemption_disabled+0x48/0x280
[  309.415811]  run_timer_softirq+0x52/0xb0
[  309.419871]  ? rcu_read_lock_sched_held+0x14f/0x180
[  309.424909]  __do_softirq+0x308/0xb7e
[  309.428715]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  309.433238]  ? lock_downgrade+0x900/0x900
[  309.437412]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  309.442527]  ? pvclock_read_flags+0x160/0x160
[  309.447025]  ? lapic_next_event+0x5a/0x90
[  309.451190]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.456731]  ? kvm_clock_read+0x18/0x30
[  309.460705]  ? kvm_sched_clock_read+0x9/0x20
[  309.465119]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.470677]  ? check_preemption_disabled+0x48/0x280
[  309.475703]  irq_exit+0x17f/0x1c0
[  309.479172]  smp_apic_timer_interrupt+0x1cb/0x760
[  309.484018]  ? smp_call_function_single_interrupt+0x159/0x650
[  309.489991]  ? smp_call_function_single_interrupt+0x650/0x650
[  309.495883]  ? interrupt_entry+0xb5/0xc0
[  309.499968]  ? trace_hardirqs_off_caller+0xbb/0x310
[  309.504988]  ? trace_hardirqs_off_caller+0xbb/0x310
[  309.510009]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  309.514882]  ? trace_hardirqs_on_caller+0x310/0x310
[  309.519929]  ? trace_hardirqs_on_caller+0x310/0x310
[  309.524945]  ? task_prio+0x50/0x50
[  309.528506]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.534044]  ? check_preemption_disabled+0x48/0x280
[  309.539069]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  309.543927]  apic_timer_interrupt+0xf/0x20
[  309.548176]  </IRQ>
[  309.550434] RIP: 0010:dump_stack+0x358/0x39d
[  309.554873] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 50 ef f9 48 83 3d 39 6e 7e 01 00 0f 84 63 fe ff ff e8 ae fd ab f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 9b fd ab f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  309.573781] RSP: 0018:ffff8881c15761e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  309.581489] RAX: ffff8881c100c400 RBX: 1ffffffff12a3f6e RCX: 1ffff1103820199e
[  309.588755] RDX: 0000000000000000 RSI: ffffffff87d38d42 RDI: 0000000000000293
[  309.596023] RBP: ffff8881c1576290 R08: ffff8881c100ccf0 R09: 0000000000000006
[  309.603293] R10: 0000000000000000 R11: ffff8881c100c400 R12: 1ffff110382aec45
[  309.610583] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  309.617865]  ? dump_stack+0x34f/0x39d
[  309.621685]  ? dump_stack_print_info.cold.1+0x20/0x20
[  309.626881]  ? mark_held_locks+0x130/0x130
[  309.631126]  ? mark_held_locks+0x130/0x130
[  309.635363]  dump_header+0x27b/0xf72
[  309.639089]  ? pagefault_out_of_memory+0x197/0x197
[  309.644026]  ? __lock_acquire+0x62f/0x4c20
[  309.648261]  ? percpu_ref_get_many+0x240/0x240
[  309.652857]  ? print_usage_bug+0xc0/0xc0
[  309.656973]  ? zap_class+0x640/0x640
[  309.660709]  ? print_usage_bug+0xc0/0xc0
[  309.664790]  ? print_usage_bug+0xc0/0xc0
[  309.668847]  ? zap_class+0x640/0x640
[  309.672560]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.678097]  ? find_held_lock+0x36/0x1c0
[  309.682164]  ? mark_held_locks+0xc7/0x130
[  309.686310]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  309.691421]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  309.696542]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  309.701130]  ? trace_hardirqs_on+0xbd/0x310
[  309.705451]  ? kasan_check_read+0x11/0x20
[  309.709596]  ? ___ratelimit+0x3b4/0x672
[  309.713570]  ? trace_hardirqs_off_caller+0x310/0x310
[  309.718671]  ? trace_hardirqs_on+0x310/0x310
[  309.723092]  ? lock_downgrade+0x900/0x900
[  309.727262]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  309.732378]  ? ___ratelimit+0x3b9/0x672
[  309.736363]  ? idr_get_free+0xf70/0xf70
[  309.740336]  ? find_held_lock+0x36/0x1c0
[  309.744472]  oom_kill_process.cold.27+0x10/0x903
[  309.749225]  ? zap_class+0x640/0x640
[  309.752939]  ? check_preemption_disabled+0x48/0x280
[  309.757974]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  309.762912]  ? kasan_check_read+0x11/0x20
[  309.767076]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.772353]  ? oom_evaluate_task+0x540/0x540
[  309.776817]  ? find_held_lock+0x36/0x1c0
[  309.780885]  ? out_of_memory+0x974/0x1430
[  309.785044]  ? lock_downgrade+0x900/0x900
[  309.789195]  ? check_preemption_disabled+0x48/0x280
[  309.794219]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  309.799151]  ? kasan_check_read+0x11/0x20
[  309.803383]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.808681]  ? rcu_softirq_qs+0x20/0x20
[  309.812659]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.818223]  ? oom_evaluate_task+0x302/0x540
[  309.822636]  out_of_memory+0xa84/0x1430
[  309.826616]  ? oom_killer_disable+0x3a0/0x3a0
[  309.831111]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  309.836049]  ? __ww_mutex_check_waiters+0x160/0x160
[  309.841080]  __alloc_pages_slowpath+0x232c/0x2de0
[  309.845964]  ? warn_alloc+0x120/0x120
[  309.849766]  ? mark_held_locks+0x130/0x130
[  309.854006]  ? find_get_entry+0xaae/0x1120
[  309.858255]  ? filemap_map_pages+0x1a20/0x1a20
[  309.862842]  ? zap_class+0x640/0x640
[  309.866564]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.872103]  ? check_preemption_disabled+0x48/0x280
[  309.877123]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.882676]  ? should_fail+0x22d/0xd01
[  309.886569]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  309.891685]  ? zap_class+0x640/0x640
[  309.895426]  ? __lock_is_held+0xb5/0x140
[  309.899495]  ? mark_held_locks+0x130/0x130
[  309.903730]  ? lock_release+0xa00/0xa00
[  309.907724]  ? perf_trace_sched_process_exec+0x860/0x860
[  309.913172]  ? xa_load+0x2ba/0x460
[  309.916712]  ? lock_downgrade+0x900/0x900
[  309.920868]  ? __might_sleep+0x95/0x190
[  309.924853]  __alloc_pages_nodemask+0xad8/0xea0
[  309.929526]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  309.934544]  ? __page_cache_alloc+0x191/0x5c0
[  309.939040]  ? xa_load+0x2e1/0x460
[  309.942582]  ? xa_clear_mark+0x40/0x40
[  309.946473]  ? zap_class+0x640/0x640
[  309.950200]  ? zap_class+0x640/0x640
[  309.953919]  ? zap_class+0x640/0x640
[  309.957635]  ? __do_page_cache_readahead+0x663/0x810
[  309.962743]  ? find_held_lock+0x36/0x1c0
[  309.966809]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  309.972355]  alloc_pages_current+0x173/0x350
[  309.976772]  __page_cache_alloc+0x38c/0x5c0
[  309.981092]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  309.986024]  ? kasan_check_read+0x11/0x20
[  309.990197]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.995476]  ? generic_perform_write+0x6a0/0x6a0
[  310.000232]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  310.005769]  ? check_preemption_disabled+0x48/0x280
[  310.010798]  filemap_fault+0x1595/0x25f0
[  310.014872]  ? __lock_page_or_retry+0xa00/0xa00
[  310.019550]  ? mark_held_locks+0x130/0x130
[  310.023792]  ? filemap_map_pages+0xd6b/0x1a20
[  310.028292]  ? lock_downgrade+0x900/0x900
[  310.032440]  ? check_preemption_disabled+0x48/0x280
[  310.037458]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  310.042384]  ? kasan_check_read+0x11/0x20
[  310.046552]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  310.051831]  ? rcu_softirq_qs+0x20/0x20
[  310.055832]  ? filemap_map_pages+0xd92/0x1a20
[  310.060341]  ? find_get_entries_tag+0x1400/0x1400
[  310.065190]  ? debug_object_destroy+0x2b0/0x2b0
[  310.069858]  ? lock_pi_update_atomic+0x150/0x150
[  310.074633]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.080186]  ? lock_acquire+0x1ed/0x520
[  310.084165]  ? ext4_filemap_fault+0x7a/0xad
[  310.088492]  ? lock_release+0xa00/0xa00
[  310.092467]  ? perf_trace_sched_process_exec+0x860/0x860
[  310.097931]  ? print_usage_bug+0xc0/0xc0
[  310.101996]  ? print_usage_bug+0xc0/0xc0
[  310.106093]  ? down_read+0x8d/0x120
[  310.109720]  ? ext4_filemap_fault+0x7a/0xad
[  310.114046]  ? __down_interruptible+0x700/0x700
[  310.118724]  ext4_filemap_fault+0x82/0xad
[  310.122877]  __do_fault+0x100/0x6b0
[  310.126513]  ? find_held_lock+0x36/0x1c0
[  310.130580]  ? pmd_devmap_trans_unstable+0x220/0x220
[  310.135684]  ? mark_held_locks+0x130/0x130
[  310.139929]  ? mark_held_locks+0x130/0x130
[  310.144164]  ? _raw_spin_unlock_irq+0x27/0x80
[  310.148659]  ? _raw_spin_unlock_irq+0x27/0x80
[  310.153159]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  310.157742]  ? kasan_check_read+0x11/0x20
[  310.161927]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  310.167489]  __handle_mm_fault+0x3ea0/0x5be0
[  310.171914]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  310.176774]  ? finish_task_switch+0x1f4/0x910
[  310.181270]  ? finish_task_switch+0x1b4/0x910
[  310.185793]  ? __switch_to_asm+0x34/0x70
[  310.189858]  ? preempt_notifier_register+0x200/0x200
[  310.194966]  ? __switch_to_asm+0x34/0x70
[  310.199028]  ? __switch_to_asm+0x34/0x70
[  310.203105]  ? zap_class+0x640/0x640
[  310.206830]  ? zap_class+0x640/0x640
[  310.210557]  ? __x64_sys_futex+0x53e/0x6a0
[  310.214807]  ? find_held_lock+0x36/0x1c0
[  310.218879]  ? handle_mm_fault+0x42a/0xc70
[  310.223139]  ? lock_downgrade+0x900/0x900
[  310.227309]  ? check_preemption_disabled+0x48/0x280
[  310.232325]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  310.237251]  ? kasan_check_read+0x11/0x20
[  310.241400]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  310.246680]  ? rcu_softirq_qs+0x20/0x20
[  310.250651]  ? trace_hardirqs_off_caller+0x310/0x310
[  310.255753]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  310.261293]  ? check_preemption_disabled+0x48/0x280
[  310.266313]  handle_mm_fault+0x54f/0xc70
[  310.270378]  ? __handle_mm_fault+0x5be0/0x5be0
[  310.274970]  ? find_vma+0x34/0x190
[  310.278521]  __do_page_fault+0x5e8/0xe60
[  310.282578]  ? trace_hardirqs_off+0xb8/0x310
[  310.287016]  do_page_fault+0xf2/0x7e0
[  310.290843]  ? vmalloc_sync_all+0x30/0x30
[  310.295005]  ? error_entry+0x70/0xd0
[  310.298718]  ? trace_hardirqs_off_caller+0xbb/0x310
[  310.303730]  ? trace_hardirqs_on_caller+0xc0/0x310
[  310.308656]  ? syscall_return_slowpath+0x5e0/0x5e0
[  310.313612]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  310.318465]  ? trace_hardirqs_on_caller+0x310/0x310
[  310.323493]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  310.328960]  ? prepare_exit_to_usermode+0x291/0x3b0
[  310.333977]  ? page_fault+0x8/0x30
[  310.337518]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  310.342361]  ? page_fault+0x8/0x30
[  310.345907]  page_fault+0x1e/0x30
[  310.349363] RIP: 0033:0x40f9c0
[  310.352572] Code: Bad RIP value.
[  310.355932] RSP: 002b:000000c42001fef8 EFLAGS: 00010216
[  310.361294] RAX: ffffffffffffff92 RBX: 000000003b972538 RCX: 000000000045ddf3
[  310.368560] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fb5c0
[  310.375822] RBP: 000000c42001ff20 R08: 0000000000000000 R09: 0000000000000000
[  310.383089] R10: 000000c42001fed8 R11: 0000000000000202 R12: 0000000000000001
[  310.390357] R13: 000000c4255ca5a0 R14: 0000000000000001 R15: 0000000000000000
[  310.397647] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc3+ #88
[  310.397711] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  310.404396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  310.404401] Call Trace:
[  310.404419]  dump_stack+0x244/0x39d
[  310.404437]  ? dump_stack_print_info.cold.1+0x20/0x20
[  310.404461]  warn_alloc.cold.116+0xb7/0x1bd
[  310.411006] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  310.420301]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  310.422882] syz-fuzzer cpuset=/ mems_allowed=0
[  310.426518]  ? lock_downgrade+0x900/0x900
[  310.459898]  ? trace_hardirqs_off+0xb8/0x310
[  310.464410]  ? trace_hardirqs_off+0xb8/0x310
[  310.468843]  __alloc_pages_slowpath+0x2651/0x2de0
[  310.473715]  ? warn_alloc+0x120/0x120
[  310.477521]  ? print_usage_bug+0xc0/0xc0
[  310.481581]  ? warn_alloc+0x120/0x120
[  310.485404]  ? warn_alloc+0x120/0x120
[  310.489258]  ? print_usage_bug+0xc0/0xc0
[  310.493326]  ? print_usage_bug+0xc0/0xc0
[  310.497403]  ? __lock_acquire+0x62f/0x4c20
[  310.501664]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  310.507226]  ? should_fail+0x22d/0xd01
[  310.511117]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  310.516218]  ? __lock_acquire+0x62f/0x4c20
[  310.520457]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  310.525574]  ? __lock_acquire+0x62f/0x4c20
[  310.529808]  ? should_fail+0x22d/0xd01
[  310.533692]  ? find_held_lock+0x36/0x1c0
[  310.537757]  ? mark_held_locks+0x130/0x130
[  310.541992]  ? mark_held_locks+0x130/0x130
[  310.546237]  ? zap_class+0x640/0x640
[  310.549956]  ? mark_held_locks+0xc7/0x130
[  310.554098]  ? do_raw_spin_unlock+0xa7/0x330
[  310.558508]  ? zap_class+0x640/0x640
[  310.562333]  ? print_usage_bug+0xc0/0xc0
[  310.566387]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.571944]  ? check_preemption_disabled+0x48/0x280
[  310.576971]  ? __lock_is_held+0xb5/0x140
[  310.581037]  __alloc_pages_nodemask+0xad8/0xea0
[  310.585701]  ? zap_class+0x640/0x640
[  310.589437]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  310.594466]  ? find_held_lock+0x36/0x1c0
[  310.598534]  ? ____cache_alloc_node+0x1c7/0x1e0
[  310.603206]  ? lock_downgrade+0x900/0x900
[  310.607371]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.612953]  cache_grow_begin+0xa5/0x8c0
[  310.617012]  ? do_raw_spin_unlock+0xa7/0x330
[  310.621420]  fallback_alloc+0x204/0x2e0
[  310.625398]  ____cache_alloc_node+0x1c7/0x1e0
[  310.629909]  kmem_cache_alloc_node+0xe3/0x730
[  310.634441]  ? ipv6_get_ifaddr+0x42e/0x620
[  310.638688]  __alloc_skb+0x119/0x770
[  310.642402]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  310.647683]  ? netdev_alloc_frag+0x1f0/0x1f0
[  310.652138]  ? lock_downgrade+0x900/0x900
[  310.656296]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.661834]  ? refcount_sub_and_test_checked+0x203/0x310
[  310.667287]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  310.672738]  ? addrconf_rs_timer+0x690/0x690
[  310.677173]  ndisc_alloc_skb+0x144/0x340
[  310.681262]  ndisc_send_rs+0x331/0x6e0
[  310.685156]  addrconf_rs_timer+0x314/0x690
[  310.689408]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.693651]  call_timer_fn+0x272/0x920
[  310.697552]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.701809]  ? process_timeout+0x40/0x40
[  310.705878]  ? __run_timers+0x7da/0xc70
[  310.709864]  ? _raw_spin_unlock_irq+0x27/0x80
[  310.714368]  ? _raw_spin_unlock_irq+0x27/0x80
[  310.718864]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.723142]  ? lockdep_hardirqs_on+0x296/0x5b0
[  310.727743]  ? trace_hardirqs_on+0xbd/0x310
[  310.732063]  ? kasan_check_read+0x11/0x20
[  310.736224]  ? __run_timers+0x7da/0xc70
[  310.740201]  ? trace_hardirqs_off_caller+0x310/0x310
[  310.745311]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.749550]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.753781]  __run_timers+0x7e5/0xc70
[  310.757604]  ? timer_fixup_init+0x70/0x70
[  310.761771]  ? _raw_spin_unlock_irq+0x27/0x80
[  310.766264]  ? _raw_spin_unlock_irq+0x27/0x80
[  310.770776]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  310.775361]  ? trace_hardirqs_on+0xbd/0x310
[  310.779680]  ? kasan_check_read+0x11/0x20
[  310.783842]  ? finish_task_switch+0x1f4/0x910
[  310.788336]  ? trace_hardirqs_off_caller+0x310/0x310
[  310.793452]  ? compat_start_thread+0x80/0x80
[  310.797925]  ? pvclock_read_flags+0x160/0x160
[  310.802420]  ? __switch_to_asm+0x34/0x70
[  310.806480]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.812021]  ? check_preemption_disabled+0x48/0x280
[  310.817064]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  310.822616]  ? rcu_pm_notify+0xc0/0xc0
[  310.826506]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.832045]  ? check_preemption_disabled+0x48/0x280
[  310.837080]  run_timer_softirq+0x52/0xb0
[  310.841146]  ? rcu_read_lock_sched_held+0x14f/0x180
[  310.846166]  __do_softirq+0x308/0xb7e
[  310.849976]  ? trace_hardirqs_on_caller+0xc0/0x310
[  310.854918]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  310.860021]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  310.865468]  ? trace_hardirqs_on+0x310/0x310
[  310.869881]  ? schedule+0x108/0x460
[  310.873535]  ? trace_hardirqs_off+0xb8/0x310
[  310.877948]  ? smpboot_thread_fn+0x68b/0xa00
[  310.882371]  ? trace_hardirqs_on+0x310/0x310
[  310.886778]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  310.892320]  ? check_preemption_disabled+0x48/0x280
[  310.897354]  ? takeover_tasklets+0xa90/0xa90
[  310.901780]  run_ksoftirqd+0x5e/0x100
[  310.905596]  smpboot_thread_fn+0x68b/0xa00
[  310.909835]  ? sort_range+0x30/0x30
[  310.913462]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  310.918563]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  310.924104]  ? __kthread_parkme+0xfb/0x1a0
[  310.928341]  ? sort_range+0x30/0x30
[  310.931970]  kthread+0x35a/0x440
[  310.935351]  ? kthread_stop+0x900/0x900
[  310.939340]  ret_from_fork+0x3a/0x50
[  310.943086] CPU: 1 PID: 6029 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #88
[  310.943091] warn_alloc_show_mem: 1 callbacks suppressed
[  310.943098] Mem-Info: