44444]  call_timer_fn+0x272/0x920
[  609.648328]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  609.652581]  ? process_timeout+0x40/0x40
[  609.656662]  ? mark_held_locks+0xc7/0x130
[  609.660841]  ? _raw_spin_unlock_irq+0x27/0x80
[  609.665352]  ? _raw_spin_unlock_irq+0x27/0x80
[  609.669850]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  609.674086]  ? lockdep_hardirqs_on+0x296/0x5b0
[  609.678671]  ? trace_hardirqs_on+0xbd/0x310
[  609.682989]  ? kasan_check_read+0x11/0x20
[  609.687143]  ? __run_timers+0x7da/0xc70
[  609.691118]  ? trace_hardirqs_off_caller+0x310/0x310
[  609.696237]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  609.700478]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  609.704709]  __run_timers+0x7e5/0xc70
[  609.708543]  ? timer_fixup_init+0x70/0x70
[  609.712705]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  609.717737]  ? zap_class+0x640/0x640
[  609.721475]  ? print_usage_bug+0xc0/0xc0
[  609.725571]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  609.730788]  ? find_held_lock+0x36/0x1c0
[  609.734853]  ? zap_class+0x640/0x640
[  609.738602]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  609.744138]  ? check_preemption_disabled+0x48/0x280
[  609.749167]  ? __lock_is_held+0xb5/0x140
[  609.753243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  609.758792]  ? check_preemption_disabled+0x48/0x280
[  609.763811]  run_timer_softirq+0x52/0xb0
[  609.767873]  ? rcu_read_lock_sched_held+0x14f/0x180
[  609.772893]  __do_softirq+0x308/0xb7e
[  609.776711]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  609.781211]  ? lock_downgrade+0x900/0x900
[  609.785367]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  609.790479]  ? pvclock_read_flags+0x160/0x160
[  609.794978]  ? lapic_next_event+0x5a/0x90
[  609.799129]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  609.804673]  ? kvm_clock_read+0x18/0x30
[  609.808661]  ? kvm_sched_clock_read+0x9/0x20
[  609.813072]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  609.818626]  ? check_preemption_disabled+0x48/0x280
[  609.823650]  irq_exit+0x17f/0x1c0
[  609.827107]  smp_apic_timer_interrupt+0x1cb/0x760
[  609.831946]  ? smp_reschedule_interrupt+0x109/0x650
[  609.836963]  ? smp_call_function_single_interrupt+0x650/0x650
[  609.842866]  ? interrupt_entry+0xb5/0xc0
[  609.846959]  ? trace_hardirqs_off_caller+0xbb/0x310
[  609.851988]  ? trace_hardirqs_off_caller+0xbb/0x310
[  609.857005]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  609.861859]  ? trace_hardirqs_on_caller+0x310/0x310
[  609.866877]  ? trace_hardirqs_on_caller+0x310/0x310
[  609.871890]  ? task_prio+0x50/0x50
[  609.875429]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  609.880966]  ? check_preemption_disabled+0x48/0x280
[  609.885986]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  609.890850]  apic_timer_interrupt+0xf/0x20
[  609.895073]  </IRQ>
[  609.897311] RIP: 0010:dump_stack+0x358/0x39d
[  609.901755] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  609.920655] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  609.928363] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  609.935629] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  609.942895] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  609.950172] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  609.957452] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  609.964745]  ? dump_stack+0x34f/0x39d
[  609.968562]  ? dump_stack_print_info.cold.1+0x20/0x20
[  609.973773]  ? mark_held_locks+0x130/0x130
[  609.978008]  ? mark_held_locks+0x130/0x130
[  609.982255]  dump_header+0x27b/0xf72
[  609.985980]  ? pagefault_out_of_memory+0x197/0x197
[  609.990917]  ? __lock_acquire+0x62f/0x4c20
[  609.995151]  ? percpu_ref_get_many+0x240/0x240
[  609.999744]  ? print_usage_bug+0xc0/0xc0
[  610.003810]  ? zap_class+0x640/0x640
[  610.007524]  ? print_usage_bug+0xc0/0xc0
[  610.011583]  ? print_usage_bug+0xc0/0xc0
[  610.015665]  ? zap_class+0x640/0x640
[  610.019387]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  610.024946]  ? find_held_lock+0x36/0x1c0
[  610.029015]  ? mark_held_locks+0xc7/0x130
[  610.033165]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  610.038274]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  610.043394]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  610.047979]  ? trace_hardirqs_on+0xbd/0x310
[  610.052297]  ? kasan_check_read+0x11/0x20
[  610.056445]  ? ___ratelimit+0x3b4/0x672
[  610.060424]  ? trace_hardirqs_off_caller+0x310/0x310
[  610.065528]  ? trace_hardirqs_on+0x310/0x310
[  610.069939]  ? lock_downgrade+0x900/0x900
[  610.074125]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  610.079244]  ? ___ratelimit+0x3b9/0x672
[  610.083223]  ? idr_get_free+0xf70/0xf70
[  610.087223]  ? find_held_lock+0x36/0x1c0
[  610.091297]  oom_kill_process.cold.27+0x10/0x903
[  610.096070]  ? zap_class+0x640/0x640
[  610.099786]  ? check_preemption_disabled+0x48/0x280
[  610.104804]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  610.109738]  ? kasan_check_read+0x11/0x20
[  610.113884]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  610.119161]  ? oom_evaluate_task+0x540/0x540
[  610.123571]  ? find_held_lock+0x36/0x1c0
[  610.127638]  ? out_of_memory+0x974/0x1430
[  610.131806]  ? lock_downgrade+0x900/0x900
[  610.135952]  ? check_preemption_disabled+0x48/0x280
[  610.140974]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  610.145938]  ? kasan_check_read+0x11/0x20
[  610.150085]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  610.155359]  ? rcu_softirq_qs+0x20/0x20
[  610.159356]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  610.164891]  ? oom_evaluate_task+0x302/0x540
[  610.169302]  out_of_memory+0xa84/0x1430
[  610.173284]  ? oom_killer_disable+0x3a0/0x3a0
[  610.177797]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  610.182752]  ? __ww_mutex_check_waiters+0x160/0x160
[  610.187794]  __alloc_pages_slowpath+0x232c/0x2de0
[  610.192665]  ? warn_alloc+0x120/0x120
[  610.196464]  ? mark_held_locks+0x130/0x130
[  610.200703]  ? find_get_entry+0xaae/0x1120
[  610.204958]  ? filemap_map_pages+0x1a20/0x1a20
[  610.209560]  ? zap_class+0x640/0x640
[  610.213281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  610.218823]  ? check_preemption_disabled+0x48/0x280
[  610.223839]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  610.229374]  ? should_fail+0x22d/0xd01
[  610.233270]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  610.238373]  ? zap_class+0x640/0x640
[  610.242113]  ? __lock_is_held+0xb5/0x140
[  610.246183]  ? mark_held_locks+0x130/0x130
[  610.250416]  ? lock_release+0xa00/0xa00
[  610.254389]  ? perf_trace_sched_process_exec+0x860/0x860
[  610.259855]  ? xa_load+0x2ba/0x460
[  610.263395]  ? lock_downgrade+0x900/0x900
[  610.267546]  ? __might_sleep+0x95/0x190
[  610.271523]  __alloc_pages_nodemask+0xad8/0xea0
[  610.276198]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  610.281227]  ? __page_cache_alloc+0x191/0x5c0
[  610.285720]  ? xa_load+0x2e1/0x460
[  610.289289]  ? xa_clear_mark+0x40/0x40
[  610.293181]  ? zap_class+0x640/0x640
[  610.296906]  ? zap_class+0x640/0x640
[  610.300619]  ? zap_class+0x640/0x640
[  610.304330]  ? __do_page_cache_readahead+0x663/0x810
[  610.309434]  ? find_held_lock+0x36/0x1c0
[  610.313527]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  610.319073]  alloc_pages_current+0x173/0x350
[  610.323487]  __page_cache_alloc+0x38c/0x5c0
[  610.327804]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  610.332739]  ? kasan_check_read+0x11/0x20
[  610.336883]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  610.342164]  ? generic_perform_write+0x6a0/0x6a0
[  610.346918]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  610.352453]  ? check_preemption_disabled+0x48/0x280
[  610.357479]  filemap_fault+0x1595/0x25f0
[  610.361554]  ? __lock_page_or_retry+0xa00/0xa00
[  610.366225]  ? mark_held_locks+0x130/0x130
[  610.370468]  ? filemap_map_pages+0xd6b/0x1a20
[  610.374980]  ? lock_downgrade+0x900/0x900
[  610.379142]  ? check_preemption_disabled+0x48/0x280
[  610.384159]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  610.389084]  ? kasan_check_read+0x11/0x20
[  610.393230]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  610.398522]  ? rcu_softirq_qs+0x20/0x20
[  610.402509]  ? filemap_map_pages+0xd92/0x1a20
[  610.407012]  ? print_usage_bug+0xc0/0xc0
[  610.411079]  ? find_get_entries_tag+0x1400/0x1400
[  610.415950]  ? __kasan_slab_free+0x102/0x150
[  610.420355]  ? kasan_slab_free+0xe/0x10
[  610.424328]  ? kmem_cache_free+0x83/0x290
[  610.428478]  ? __sigqueue_free.part.29+0x74/0x90
[  610.433255]  ? lock_acquire+0x1ed/0x520
[  610.437230]  ? ext4_filemap_fault+0x7a/0xad
[  610.441561]  ? lock_release+0xa00/0xa00
[  610.445548]  ? perf_trace_sched_process_exec+0x860/0x860
[  610.451001]  ? print_usage_bug+0xc0/0xc0
[  610.455062]  ? print_usage_bug+0xc0/0xc0
[  610.459132]  ? down_read+0x8d/0x120
[  610.462763]  ? ext4_filemap_fault+0x7a/0xad
[  610.467088]  ? __down_interruptible+0x700/0x700
[  610.471776]  ext4_filemap_fault+0x82/0xad
[  610.475927]  __do_fault+0x100/0x6b0
[  610.479566]  ? pmd_devmap_trans_unstable+0x220/0x220
[  610.484672]  ? mark_held_locks+0x130/0x130
[  610.488910]  ? mark_held_locks+0x130/0x130
[  610.493158]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  610.498693]  ? rcu_pm_notify+0xc0/0xc0
[  610.502590]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  610.508131]  __handle_mm_fault+0x3ea0/0x5be0
[  610.512549]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  610.517387]  ? _raw_spin_unlock_irq+0x27/0x80
[  610.521885]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  610.526469]  ? trace_hardirqs_on+0xbd/0x310
[  610.530789]  ? kasan_check_read+0x11/0x20
[  610.534935]  ? __set_current_blocked+0xdf/0x120
[  610.539603]  ? trace_hardirqs_off_caller+0x310/0x310
[  610.544739]  ? zap_class+0x640/0x640
[  610.548450]  ? zap_class+0x640/0x640
[  610.552183]  ? find_held_lock+0x36/0x1c0
[  610.556411]  ? handle_mm_fault+0x42a/0xc70
[  610.560649]  ? lock_downgrade+0x900/0x900
[  610.564797]  ? check_preemption_disabled+0x48/0x280
[  610.569816]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  610.574752]  ? kasan_check_read+0x11/0x20
[  610.578899]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  610.584199]  ? rcu_softirq_qs+0x20/0x20
[  610.588168]  ? trace_hardirqs_off_caller+0x310/0x310
[  610.593279]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  610.598821]  ? check_preemption_disabled+0x48/0x280
[  610.603848]  handle_mm_fault+0x54f/0xc70
[  610.607916]  ? __handle_mm_fault+0x5be0/0x5be0
[  610.612502]  ? find_vma+0x34/0x190
[  610.616049]  __do_page_fault+0x5e8/0xe60
[  610.620112]  ? exit_to_usermode_loop+0x1f4/0x380
[  610.624875]  do_page_fault+0xf2/0x7e0
[  610.628689]  ? vmalloc_sync_all+0x30/0x30
[  610.632832]  ? error_entry+0x70/0xd0
[  610.636616]  ? trace_hardirqs_off_caller+0xbb/0x310
[  610.641635]  ? trace_hardirqs_on_caller+0xc0/0x310
[  610.646581]  ? syscall_return_slowpath+0x5e0/0x5e0
[  610.651510]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  610.656369]  ? trace_hardirqs_on_caller+0x310/0x310
[  610.661382]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  610.666840]  ? prepare_exit_to_usermode+0x291/0x3b0
[  610.671856]  ? page_fault+0x8/0x30
[  610.675415]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  610.680277]  ? page_fault+0x8/0x30
[  610.683826]  page_fault+0x1e/0x30
[  610.687756] RIP: 0033:0x45db60
[  610.690965] Code: Bad RIP value.
[  610.694322] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  610.699693] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  610.706979] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  610.714240] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  610.721508] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  610.728778] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  610.736073] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  610.736078] warn_alloc_show_mem: 1 callbacks suppressed
[  610.736085] Mem-Info:
[  610.742918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  610.748294] active_anon:42936 inactive_anon:306 isolated_anon:0
[  610.748294]  active_file:13 inactive_file:13 isolated_file:0
[  610.748294]  unevictable:0 dirty:0 writeback:0 unstable:0
[  610.748294]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  610.748294]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  610.748294]  free:13785 free_pcp:492 free_cma:0
[  610.750668] Call Trace:
[  610.760080] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  610.792843]  dump_stack+0x244/0x39d
[  610.795399] 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
[  610.822975]  ? dump_stack_print_info.cold.1+0x20/0x20
[  610.826602] lowmem_reserve[]: 0 2818 6321 6321
[  610.852725]  warn_alloc.cold.116+0xb7/0x1bd
[  610.857887] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  610.862458]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  610.866761] lowmem_reserve[]: 0 0 3503 3503
[  610.893904]  ? lock_downgrade+0x900/0x900
[  610.898720] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  610.903062]  ? trace_hardirqs_off+0xb8/0x310
[  610.907175] lowmem_reserve[]: 0 0 0 0
[  610.936316]  ? trace_hardirqs_off+0xb8/0x310
[  610.940707] 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
[  610.944507]  __alloc_pages_slowpath+0x2651/0x2de0
[  610.948889] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  610.962442]  ? warn_alloc+0x120/0x120
[  610.967235] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  610.982397]  ? print_usage_bug+0xc0/0xc0
[  610.986193] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  611.001346]  ? warn_alloc+0x120/0x120
[  611.005388] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  611.014211]  ? warn_alloc+0x120/0x120
[  611.017987] 380 total pagecache pages
[  611.026551]  ? print_usage_bug+0xc0/0xc0
[  611.030333] 0 pages in swap cache
[  611.034134]  ? print_usage_bug+0xc0/0xc0
[  611.038196] Swap cache stats: add 0, delete 0, find 0/0
[  611.041633]  ? __lock_acquire+0x62f/0x4c20
[  611.045665] Free swap  = 0kB
[  611.051020]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  611.055223] Total swap = 0kB
[  611.058232]  ? should_fail+0x22d/0xd01
[  611.063748] 1965979 pages RAM
[  611.066773]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  611.070641] 0 pages HighMem/MovableOnly
[  611.073743]  ? __lock_acquire+0x62f/0x4c20
[  611.078821] 342854 pages reserved
[  611.082789]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  611.086996] 0 pages cma reserved
[  611.090437]  ? __lock_acquire+0x62f/0x4c20
[  611.095569] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  611.098859]  ? should_fail+0x22d/0xd01
[  611.098874]  ? find_held_lock+0x36/0x1c0
[  611.098894]  ? mark_held_locks+0x130/0x130
[  611.103164] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  611.109614]  ? mark_held_locks+0x130/0x130
[  611.113478] syz-fuzzer cpuset=/ mems_allowed=0
[  611.117531]  ? zap_class+0x640/0x640
[  611.144485]  ? mark_held_locks+0xc7/0x130
[  611.148630]  ? do_raw_spin_unlock+0xa7/0x330
[  611.153052]  ? zap_class+0x640/0x640
[  611.156799]  ? print_usage_bug+0xc0/0xc0
[  611.160873]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  611.166418]  ? check_preemption_disabled+0x48/0x280
[  611.171446]  ? __lock_is_held+0xb5/0x140
[  611.175509]  __alloc_pages_nodemask+0xad8/0xea0
[  611.180173]  ? zap_class+0x640/0x640
[  611.183895]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  611.188922]  ? find_held_lock+0x36/0x1c0
[  611.192995]  ? ____cache_alloc_node+0x1c7/0x1e0
[  611.197664]  ? lock_downgrade+0x900/0x900
[  611.201832]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  611.207374]  cache_grow_begin+0xa5/0x8c0
[  611.211432]  ? do_raw_spin_unlock+0xa7/0x330
[  611.215849]  fallback_alloc+0x204/0x2e0
[  611.219845]  ____cache_alloc_node+0x1c7/0x1e0
[  611.224342]  kmem_cache_alloc_node+0xe3/0x730
[  611.228835]  ? ipv6_get_ifaddr+0x42e/0x620
[  611.233079]  __alloc_skb+0x119/0x770
[  611.236788]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  611.242070]  ? netdev_alloc_frag+0x1f0/0x1f0
[  611.246494]  ? lock_downgrade+0x900/0x900
[  611.250645]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  611.256186]  ? refcount_sub_and_test_checked+0x203/0x310
[  611.261638]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  611.267106]  ? addrconf_rs_timer+0x690/0x690
[  611.271555]  ndisc_alloc_skb+0x144/0x340
[  611.275625]  ndisc_send_rs+0x331/0x6e0
[  611.279517]  addrconf_rs_timer+0x314/0x690
[  611.283775]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  611.288021]  call_timer_fn+0x272/0x920
[  611.291922]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  611.296157]  ? process_timeout+0x40/0x40
[  611.300226]  ? __run_timers+0x7da/0xc70
[  611.304198]  ? _raw_spin_unlock_irq+0x27/0x80
[  611.308691]  ? _raw_spin_unlock_irq+0x27/0x80
[  611.313195]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  611.317426]  ? lockdep_hardirqs_on+0x296/0x5b0
[  611.322010]  ? trace_hardirqs_on+0xbd/0x310
[  611.326332]  ? kasan_check_read+0x11/0x20
[  611.330497]  ? __run_timers+0x7da/0xc70
[  611.334474]  ? trace_hardirqs_off_caller+0x310/0x310
[  611.339579]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  611.343820]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  611.348064]  __run_timers+0x7e5/0xc70
[  611.351876]  ? timer_fixup_init+0x70/0x70
[  611.356025]  ? _raw_spin_unlock_irq+0x27/0x80
[  611.360515]  ? _raw_spin_unlock_irq+0x27/0x80
[  611.365009]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  611.369590]  ? trace_hardirqs_on+0xbd/0x310
[  611.373904]  ? kasan_check_read+0x11/0x20
[  611.378053]  ? finish_task_switch+0x1f4/0x910
[  611.382578]  ? trace_hardirqs_off_caller+0x310/0x310
[  611.387696]  ? compat_start_thread+0x80/0x80
[  611.392128]  ? pvclock_read_flags+0x160/0x160
[  611.396623]  ? __switch_to_asm+0x34/0x70
[  611.400687]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  611.406224]  ? check_preemption_disabled+0x48/0x280
[  611.411251]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  611.416791]  ? rcu_pm_notify+0xc0/0xc0
[  611.420679]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  611.426215]  ? check_preemption_disabled+0x48/0x280
[  611.431235]  run_timer_softirq+0x52/0xb0
[  611.435294]  ? rcu_read_lock_sched_held+0x14f/0x180
[  611.440310]  __do_softirq+0x308/0xb7e
[  611.444115]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  611.448903]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  611.454022]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  611.459469]  ? trace_hardirqs_on+0x310/0x310
[  611.463881]  ? schedule+0x108/0x460
[  611.467516]  ? trace_hardirqs_off+0xb8/0x310
[  611.471926]  ? smpboot_thread_fn+0x68b/0xa00
[  611.476332]  ? trace_hardirqs_on+0x310/0x310
[  611.480767]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  611.486305]  ? check_preemption_disabled+0x48/0x280
[  611.491321]  ? takeover_tasklets+0xa90/0xa90
[  611.495741]  run_ksoftirqd+0x5e/0x100
[  611.499550]  smpboot_thread_fn+0x68b/0xa00
[  611.503791]  ? sort_range+0x30/0x30
[  611.507422]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  611.512525]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  611.518062]  ? __kthread_parkme+0xfb/0x1a0
[  611.522299]  ? sort_range+0x30/0x30
[  611.525926]  kthread+0x35a/0x440
[  611.529292]  ? kthread_stop+0x900/0x900
[  611.533268]  ret_from_fork+0x3a/0x50
[  611.536996] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  611.537061] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  611.544000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  611.544005] Call Trace:
[  611.544012]  <IRQ>
[  611.544029]  dump_stack+0x244/0x39d
[  611.544048]  ? dump_stack_print_info.cold.1+0x20/0x20
[  611.550603] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  611.559878]  warn_alloc.cold.116+0xb7/0x1bd
[  611.562434] ksoftirqd/0 cpuset=/ mems_allowed=0
[  611.564579]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  611.597416]  ? lock_downgrade+0x900/0x900
[  611.601570]  ? trace_hardirqs_off+0xb8/0x310
[  611.606002]  ? trace_hardirqs_off+0xb8/0x310
[  611.610466]  __alloc_pages_slowpath+0x2651/0x2de0
[  611.615369]  ? warn_alloc+0x120/0x120
[  611.619191]  ? print_usage_bug+0xc0/0xc0
[  611.623270]  ? warn_alloc+0x120/0x120
[  611.627077]  ? warn_alloc+0x120/0x120
[  611.630878]  ? print_usage_bug+0xc0/0xc0
[  611.634949]  ? print_usage_bug+0xc0/0xc0
[  611.639010]  ? __lock_acquire+0x62f/0x4c20
[  611.643257]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  611.648797]  ? should_fail+0x22d/0xd01
[  611.652687]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  611.657815]  ? __lock_acquire+0x62f/0x4c20
[  611.662053]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  611.667154]  ? __lock_acquire+0x62f/0x4c20
[  611.671385]  ? should_fail+0x22d/0xd01
[  611.675289]  ? find_held_lock+0x36/0x1c0
[  611.679373]  ? mark_held_locks+0x130/0x130
[  611.683642]  ? mark_held_locks+0x130/0x130
[  611.687875]  ? zap_class+0x640/0x640
[  611.691584]  ? zap_class+0x640/0x640
[  611.695302]  ? print_usage_bug+0xc0/0xc0
[  611.699362]  ? do_raw_spin_unlock+0xa7/0x330
[  611.703787]  ? zap_class+0x640/0x640
[  611.707516]  ? print_usage_bug+0xc0/0xc0
[  611.711575]  ? wq_watchdog_touch+0x9c/0xfe
[  611.715814]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  611.721350]  ? check_preemption_disabled+0x48/0x280
[  611.726372]  ? __lock_is_held+0xb5/0x140
[  611.730452]  __alloc_pages_nodemask+0xad8/0xea0
[  611.735136]  ? zap_class+0x640/0x640
[  611.738857]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  611.743882]  ? find_held_lock+0x36/0x1c0
[  611.747953]  ? ____cache_alloc_node+0x1c7/0x1e0
[  611.752621]  ? lock_downgrade+0x900/0x900
[  611.756808]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  611.762347]  cache_grow_begin+0xa5/0x8c0
[  611.766401]  ? do_raw_spin_unlock+0xa7/0x330
[  611.770818]  fallback_alloc+0x204/0x2e0
[  611.774799]  ____cache_alloc_node+0x1c7/0x1e0
[  611.779302]  kmem_cache_alloc_node+0xe3/0x730
[  611.783799]  ? ipv6_get_ifaddr+0x42e/0x620
[  611.788041]  __alloc_skb+0x119/0x770
[  611.791752]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  611.797029]  ? netdev_alloc_frag+0x1f0/0x1f0
[  611.801437]  ? lock_downgrade+0x900/0x900
[  611.805589]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  611.811125]  ? refcount_sub_and_test_checked+0x203/0x310
[  611.816575]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  611.822042]  ? addrconf_rs_timer+0x690/0x690
[  611.826458]  ndisc_alloc_skb+0x144/0x340
[  611.830521]  ndisc_send_rs+0x331/0x6e0
[  611.834418]  addrconf_rs_timer+0x314/0x690
[  611.838669]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  611.842910]  call_timer_fn+0x272/0x920
[  611.846800]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  611.851048]  ? process_timeout+0x40/0x40
[  611.855120]  ? mark_held_locks+0xc7/0x130
[  611.859272]  ? _raw_spin_unlock_irq+0x27/0x80
[  611.863769]  ? _raw_spin_unlock_irq+0x27/0x80
[  611.868272]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  611.872506]  ? lockdep_hardirqs_on+0x296/0x5b0
[  611.877087]  ? trace_hardirqs_on+0xbd/0x310
[  611.881402]  ? kasan_check_read+0x11/0x20
[  611.885543]  ? __run_timers+0x7da/0xc70
[  611.889548]  ? trace_hardirqs_off_caller+0x310/0x310
[  611.894702]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  611.898950]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  611.903184]  __run_timers+0x7e5/0xc70
[  611.906996]  ? timer_fixup_init+0x70/0x70
[  611.911161]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  611.916174]  ? zap_class+0x640/0x640
[  611.919891]  ? print_usage_bug+0xc0/0xc0
[  611.923956]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  611.929150]  ? find_held_lock+0x36/0x1c0
[  611.933227]  ? zap_class+0x640/0x640
[  611.936951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  611.942489]  ? check_preemption_disabled+0x48/0x280
[  611.947514]  ? __lock_is_held+0xb5/0x140
[  611.951576]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  611.957113]  ? check_preemption_disabled+0x48/0x280
[  611.962133]  run_timer_softirq+0x52/0xb0
[  611.966191]  ? rcu_read_lock_sched_held+0x14f/0x180
[  611.971209]  __do_softirq+0x308/0xb7e
[  611.975011]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  611.979505]  ? lock_downgrade+0x900/0x900
[  611.983659]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  611.988772]  ? pvclock_read_flags+0x160/0x160
[  611.993287]  ? lapic_next_event+0x5a/0x90
[  611.997484]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  612.003041]  ? kvm_clock_read+0x18/0x30
[  612.007012]  ? kvm_sched_clock_read+0x9/0x20
[  612.011421]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  612.016975]  ? check_preemption_disabled+0x48/0x280
[  612.022014]  irq_exit+0x17f/0x1c0
[  612.025467]  smp_apic_timer_interrupt+0x1cb/0x760
[  612.030303]  ? smp_reschedule_interrupt+0x109/0x650
[  612.035315]  ? smp_call_function_single_interrupt+0x650/0x650
[  612.041199]  ? interrupt_entry+0xb5/0xc0
[  612.045268]  ? trace_hardirqs_off_caller+0xbb/0x310
[  612.050285]  ? trace_hardirqs_off_caller+0xbb/0x310
[  612.055298]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  612.060140]  ? trace_hardirqs_on_caller+0x310/0x310
[  612.065156]  ? trace_hardirqs_on_caller+0x310/0x310
[  612.070167]  ? task_prio+0x50/0x50
[  612.073710]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  612.079264]  ? check_preemption_disabled+0x48/0x280
[  612.084288]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  612.089136]  apic_timer_interrupt+0xf/0x20
[  612.093363]  </IRQ>
[  612.095595] RIP: 0010:dump_stack+0x358/0x39d
[  612.099999] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  612.118893] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  612.126599] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  612.133891] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  612.141155] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  612.148422] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  612.155688] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  612.162972]  ? dump_stack+0x34f/0x39d
[  612.166799]  ? dump_stack_print_info.cold.1+0x20/0x20
[  612.172003]  ? mark_held_locks+0x130/0x130
[  612.176235]  ? mark_held_locks+0x130/0x130
[  612.180487]  dump_header+0x27b/0xf72
[  612.184242]  ? pagefault_out_of_memory+0x197/0x197
[  612.189185]  ? __lock_acquire+0x62f/0x4c20
[  612.193419]  ? percpu_ref_get_many+0x240/0x240
[  612.198000]  ? print_usage_bug+0xc0/0xc0
[  612.202067]  ? zap_class+0x640/0x640
[  612.205803]  ? print_usage_bug+0xc0/0xc0
[  612.209865]  ? print_usage_bug+0xc0/0xc0
[  612.213926]  ? zap_class+0x640/0x640
[  612.217642]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  612.223195]  ? find_held_lock+0x36/0x1c0
[  612.227273]  ? mark_held_locks+0xc7/0x130
[  612.231424]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  612.236541]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  612.241645]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  612.246228]  ? trace_hardirqs_on+0xbd/0x310
[  612.250553]  ? kasan_check_read+0x11/0x20
[  612.254698]  ? ___ratelimit+0x3b4/0x672
[  612.258690]  ? trace_hardirqs_off_caller+0x310/0x310
[  612.263795]  ? trace_hardirqs_on+0x310/0x310
[  612.268206]  ? lock_downgrade+0x900/0x900
[  612.272356]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  612.277459]  ? ___ratelimit+0x3b9/0x672
[  612.281440]  ? idr_get_free+0xf70/0xf70
[  612.285414]  ? find_held_lock+0x36/0x1c0
[  612.289485]  oom_kill_process.cold.27+0x10/0x903
[  612.294261]  ? zap_class+0x640/0x640
[  612.297976]  ? check_preemption_disabled+0x48/0x280
[  612.302992]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  612.307931]  ? kasan_check_read+0x11/0x20
[  612.312072]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  612.317351]  ? oom_evaluate_task+0x540/0x540
[  612.321771]  ? find_held_lock+0x36/0x1c0
[  612.325854]  ? out_of_memory+0x974/0x1430
[  612.330001]  ? lock_downgrade+0x900/0x900
[  612.334177]  ? check_preemption_disabled+0x48/0x280
[  612.339193]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  612.344130]  ? kasan_check_read+0x11/0x20
[  612.348275]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  612.353550]  ? rcu_softirq_qs+0x20/0x20
[  612.357524]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  612.363061]  ? oom_evaluate_task+0x302/0x540
[  612.367472]  out_of_memory+0xa84/0x1430
[  612.371465]  ? oom_killer_disable+0x3a0/0x3a0
[  612.375985]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  612.380943]  ? __ww_mutex_check_waiters+0x160/0x160
[  612.385965]  __alloc_pages_slowpath+0x232c/0x2de0
[  612.390839]  ? warn_alloc+0x120/0x120
[  612.394637]  ? mark_held_locks+0x130/0x130
[  612.398878]  ? find_get_entry+0xaae/0x1120
[  612.403122]  ? filemap_map_pages+0x1a20/0x1a20
[  612.407705]  ? zap_class+0x640/0x640
[  612.411460]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  612.417014]  ? check_preemption_disabled+0x48/0x280
[  612.422027]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  612.427564]  ? should_fail+0x22d/0xd01
[  612.431452]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  612.436554]  ? zap_class+0x640/0x640
[  612.440298]  ? __lock_is_held+0xb5/0x140
[  612.444369]  ? mark_held_locks+0x130/0x130
[  612.448606]  ? lock_release+0xa00/0xa00
[  612.452582]  ? perf_trace_sched_process_exec+0x860/0x860
[  612.458029]  ? xa_load+0x2ba/0x460
[  612.461598]  ? lock_downgrade+0x900/0x900
[  612.465785]  ? __might_sleep+0x95/0x190
[  612.469780]  __alloc_pages_nodemask+0xad8/0xea0
[  612.474458]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  612.479473]  ? __page_cache_alloc+0x191/0x5c0
[  612.483965]  ? xa_load+0x2e1/0x460
[  612.487514]  ? xa_clear_mark+0x40/0x40
[  612.491399]  ? zap_class+0x640/0x640
[  612.495115]  ? zap_class+0x640/0x640
[  612.498827]  ? zap_class+0x640/0x640
[  612.502537]  ? __do_page_cache_readahead+0x663/0x810
[  612.507646]  ? find_held_lock+0x36/0x1c0
[  612.511708]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  612.517261]  alloc_pages_current+0x173/0x350
[  612.521677]  __page_cache_alloc+0x38c/0x5c0
[  612.526056]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  612.530989]  ? kasan_check_read+0x11/0x20
[  612.535163]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  612.540441]  ? generic_perform_write+0x6a0/0x6a0
[  612.545199]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  612.550743]  ? check_preemption_disabled+0x48/0x280
[  612.555875]  filemap_fault+0x1595/0x25f0
[  612.559963]  ? __lock_page_or_retry+0xa00/0xa00
[  612.564653]  ? mark_held_locks+0x130/0x130
[  612.568894]  ? filemap_map_pages+0xd6b/0x1a20
[  612.573387]  ? lock_downgrade+0x900/0x900
[  612.577550]  ? check_preemption_disabled+0x48/0x280
[  612.582581]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  612.587523]  ? kasan_check_read+0x11/0x20
[  612.591669]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  612.596940]  ? rcu_softirq_qs+0x20/0x20
[  612.600938]  ? filemap_map_pages+0xd92/0x1a20
[  612.605435]  ? print_usage_bug+0xc0/0xc0
[  612.609497]  ? find_get_entries_tag+0x1400/0x1400
[  612.614354]  ? __kasan_slab_free+0x102/0x150
[  612.618762]  ? kasan_slab_free+0xe/0x10
[  612.622753]  ? kmem_cache_free+0x83/0x290
[  612.626900]  ? __sigqueue_free.part.29+0x74/0x90
[  612.631674]  ? lock_acquire+0x1ed/0x520
[  612.635647]  ? ext4_filemap_fault+0x7a/0xad
[  612.639973]  ? lock_release+0xa00/0xa00
[  612.643947]  ? perf_trace_sched_process_exec+0x860/0x860
[  612.649396]  ? print_usage_bug+0xc0/0xc0
[  612.653458]  ? print_usage_bug+0xc0/0xc0
[  612.657545]  ? down_read+0x8d/0x120
[  612.661168]  ? ext4_filemap_fault+0x7a/0xad
[  612.665485]  ? __down_interruptible+0x700/0x700
[  612.670174]  ext4_filemap_fault+0x82/0xad
[  612.674320]  __do_fault+0x100/0x6b0
[  612.677952]  ? pmd_devmap_trans_unstable+0x220/0x220
[  612.683059]  ? mark_held_locks+0x130/0x130
[  612.687779]  ? mark_held_locks+0x130/0x130
[  612.692017]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  612.697557]  ? rcu_pm_notify+0xc0/0xc0
[  612.701451]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  612.706998]  __handle_mm_fault+0x3ea0/0x5be0
[  612.711417]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  612.716256]  ? _raw_spin_unlock_irq+0x27/0x80
[  612.720754]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  612.725338]  ? trace_hardirqs_on+0xbd/0x310
[  612.729674]  ? kasan_check_read+0x11/0x20
[  612.733836]  ? __set_current_blocked+0xdf/0x120
[  612.738515]  ? trace_hardirqs_off_caller+0x310/0x310
[  612.743641]  ? zap_class+0x640/0x640
[  612.747369]  ? zap_class+0x640/0x640
[  612.751085]  ? find_held_lock+0x36/0x1c0
[  612.755156]  ? handle_mm_fault+0x42a/0xc70
[  612.759389]  ? lock_downgrade+0x900/0x900
[  612.763539]  ? check_preemption_disabled+0x48/0x280
[  612.768553]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  612.773477]  ? kasan_check_read+0x11/0x20
[  612.777618]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  612.782893]  ? rcu_softirq_qs+0x20/0x20
[  612.786882]  ? trace_hardirqs_off_caller+0x310/0x310
[  612.791988]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  612.797528]  ? check_preemption_disabled+0x48/0x280
[  612.802565]  handle_mm_fault+0x54f/0xc70
[  612.806657]  ? __handle_mm_fault+0x5be0/0x5be0
[  612.811266]  ? find_vma+0x34/0x190
[  612.814827]  __do_page_fault+0x5e8/0xe60
[  612.818890]  ? exit_to_usermode_loop+0x1f4/0x380
[  612.823659]  do_page_fault+0xf2/0x7e0
[  612.827458]  ? vmalloc_sync_all+0x30/0x30
[  612.831607]  ? error_entry+0x70/0xd0
[  612.835317]  ? trace_hardirqs_off_caller+0xbb/0x310
[  612.840327]  ? trace_hardirqs_on_caller+0xc0/0x310
[  612.845256]  ? syscall_return_slowpath+0x5e0/0x5e0
[  612.850182]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  612.855027]  ? trace_hardirqs_on_caller+0x310/0x310
[  612.860059]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  612.865514]  ? prepare_exit_to_usermode+0x291/0x3b0
[  612.870541]  ? page_fault+0x8/0x30
[  612.874082]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  612.878928]  ? page_fault+0x8/0x30
[  612.882485]  page_fault+0x1e/0x30
[  612.885935] RIP: 0033:0x45db60
[  612.889134] Code: Bad RIP value.
[  612.892492] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  612.897851] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  612.905115] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  612.912380] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  612.919655] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  612.926936] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  612.934224] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  612.934229] warn_alloc_show_mem: 1 callbacks suppressed
[  612.934235] Mem-Info:
[  612.941067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  612.946428] active_anon:42936 inactive_anon:306 isolated_anon:0
[  612.946428]  active_file:13 inactive_file:13 isolated_file:0
[  612.946428]  unevictable:0 dirty:0 writeback:0 unstable:0
[  612.946428]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  612.946428]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  612.946428]  free:13785 free_pcp:492 free_cma:0
[  612.948795] Call Trace:
[  612.958214] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  612.990978]  dump_stack+0x244/0x39d
[  612.993553] 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
[  613.021127]  ? dump_stack_print_info.cold.1+0x20/0x20
[  613.024726] lowmem_reserve[]: 0 2818 6321 6321
[  613.050842]  warn_alloc.cold.116+0xb7/0x1bd
[  613.055997] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  613.060567]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  613.064858] lowmem_reserve[]: 0 0 3503 3503
[  613.092001]  ? lock_downgrade+0x900/0x900
[  613.096816] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  613.101134]  ? trace_hardirqs_off+0xb8/0x310
[  613.105247] lowmem_reserve[]: 0 0 0 0
[  613.134392]  ? trace_hardirqs_off+0xb8/0x310
[  613.138771] 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
[  613.142569]  __alloc_pages_slowpath+0x2651/0x2de0
[  613.146943] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  613.160482]  ? warn_alloc+0x120/0x120
[  613.165300] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  613.180476]  ? print_usage_bug+0xc0/0xc0
[  613.184261] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  613.199412]  ? warn_alloc+0x120/0x120
[  613.203454] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  613.212274]  ? warn_alloc+0x120/0x120
[  613.216051] 380 total pagecache pages
[  613.224635]  ? print_usage_bug+0xc0/0xc0
[  613.228446] 0 pages in swap cache
[  613.232230]  ? print_usage_bug+0xc0/0xc0
[  613.236268] Swap cache stats: add 0, delete 0, find 0/0
[  613.239716]  ? __lock_acquire+0x62f/0x4c20
[  613.243771] Free swap  = 0kB
[  613.249124]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  613.253343] Total swap = 0kB
[  613.256352]  ? should_fail+0x22d/0xd01
[  613.261860] 1965979 pages RAM
[  613.264872]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  613.268743] 0 pages HighMem/MovableOnly
[  613.271853]  ? __lock_acquire+0x62f/0x4c20
[  613.276929] 342854 pages reserved
[  613.280908]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  613.285119] 0 pages cma reserved
[  613.288561]  ? __lock_acquire+0x62f/0x4c20
[  613.293699] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  613.296987]  ? should_fail+0x22d/0xd01
[  613.297002]  ? find_held_lock+0x36/0x1c0
[  613.301308] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  613.307706]  ? mark_held_locks+0x130/0x130
[  613.311580] syz-fuzzer cpuset=/ mems_allowed=0
[  613.315647]  ? mark_held_locks+0x130/0x130
[  613.338863]  ? zap_class+0x640/0x640
[  613.342583]  ? mark_held_locks+0xc7/0x130
[  613.346758]  ? do_raw_spin_unlock+0xa7/0x330
[  613.351166]  ? zap_class+0x640/0x640
[  613.354877]  ? print_usage_bug+0xc0/0xc0
[  613.358960]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  613.364497]  ? check_preemption_disabled+0x48/0x280
[  613.369522]  ? __lock_is_held+0xb5/0x140
[  613.373586]  __alloc_pages_nodemask+0xad8/0xea0
[  613.378255]  ? zap_class+0x640/0x640
[  613.381977]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  613.387002]  ? find_held_lock+0x36/0x1c0
[  613.391074]  ? ____cache_alloc_node+0x1c7/0x1e0
[  613.395756]  ? lock_downgrade+0x900/0x900
[  613.399912]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  613.405457]  cache_grow_begin+0xa5/0x8c0
[  613.409514]  ? do_raw_spin_unlock+0xa7/0x330
[  613.413930]  fallback_alloc+0x204/0x2e0
[  613.417909]  ____cache_alloc_node+0x1c7/0x1e0
[  613.422410]  kmem_cache_alloc_node+0xe3/0x730
[  613.426904]  ? ipv6_get_ifaddr+0x42e/0x620
[  613.431148]  __alloc_skb+0x119/0x770
[  613.434860]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  613.440141]  ? netdev_alloc_frag+0x1f0/0x1f0
[  613.444547]  ? lock_downgrade+0x900/0x900
[  613.448701]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  613.454262]  ? refcount_sub_and_test_checked+0x203/0x310
[  613.459717]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  613.465180]  ? addrconf_rs_timer+0x690/0x690
[  613.469600]  ndisc_alloc_skb+0x144/0x340
[  613.473668]  ndisc_send_rs+0x331/0x6e0
[  613.477572]  addrconf_rs_timer+0x314/0x690
[  613.481813]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  613.486055]  call_timer_fn+0x272/0x920
[  613.489956]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  613.494200]  ? process_timeout+0x40/0x40
[  613.498279]  ? __run_timers+0x7da/0xc70
[  613.502261]  ? _raw_spin_unlock_irq+0x27/0x80
[  613.506778]  ? _raw_spin_unlock_irq+0x27/0x80
[  613.511270]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  613.515507]  ? lockdep_hardirqs_on+0x296/0x5b0
[  613.520091]  ? trace_hardirqs_on+0xbd/0x310
[  613.524410]  ? kasan_check_read+0x11/0x20
[  613.528570]  ? __run_timers+0x7da/0xc70
[  613.532540]  ? trace_hardirqs_off_caller+0x310/0x310
[  613.537659]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  613.541916]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  613.546148]  __run_timers+0x7e5/0xc70
[  613.549959]  ? timer_fixup_init+0x70/0x70
[  613.554110]  ? _raw_spin_unlock_irq+0x27/0x80
[  613.558598]  ? _raw_spin_unlock_irq+0x27/0x80
[  613.563094]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  613.567676]  ? trace_hardirqs_on+0xbd/0x310
[  613.572010]  ? kasan_check_read+0x11/0x20
[  613.576183]  ? finish_task_switch+0x1f4/0x910
[  613.580689]  ? trace_hardirqs_off_caller+0x310/0x310
[  613.585787]  ? compat_start_thread+0x80/0x80
[  613.590221]  ? pvclock_read_flags+0x160/0x160
[  613.594714]  ? __switch_to_asm+0x34/0x70
[  613.598806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  613.604339]  ? check_preemption_disabled+0x48/0x280
[  613.609375]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  613.614914]  ? rcu_pm_notify+0xc0/0xc0
[  613.618804]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  613.624339]  ? check_preemption_disabled+0x48/0x280
[  613.629365]  run_timer_softirq+0x52/0xb0
[  613.633426]  ? rcu_read_lock_sched_held+0x14f/0x180
[  613.638454]  __do_softirq+0x308/0xb7e
[  613.642291]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  613.647052]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  613.652153]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  613.657599]  ? trace_hardirqs_on+0x310/0x310
[  613.662014]  ? schedule+0x108/0x460
[  613.665653]  ? trace_hardirqs_off+0xb8/0x310
[  613.670076]  ? smpboot_thread_fn+0x68b/0xa00
[  613.674484]  ? trace_hardirqs_on+0x310/0x310
[  613.678891]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  613.684431]  ? check_preemption_disabled+0x48/0x280
[  613.689445]  ? takeover_tasklets+0xa90/0xa90
[  613.693852]  run_ksoftirqd+0x5e/0x100
[  613.697651]  smpboot_thread_fn+0x68b/0xa00
[  613.701888]  ? sort_range+0x30/0x30
[  613.705512]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  613.710616]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  613.716151]  ? __kthread_parkme+0xfb/0x1a0
[  613.720385]  ? sort_range+0x30/0x30
[  613.724027]  kthread+0x35a/0x440
[  613.727395]  ? kthread_stop+0x900/0x900
[  613.731373]  ret_from_fork+0x3a/0x50
[  613.735108] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  613.735179] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  613.742114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  613.742120] Call Trace:
[  613.742126]  <IRQ>
[  613.742144]  dump_stack+0x244/0x39d
[  613.742163]  ? dump_stack_print_info.cold.1+0x20/0x20
[  613.748900] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  613.757991]  warn_alloc.cold.116+0xb7/0x1bd
[  613.760545] ksoftirqd/0 cpuset=/ mems_allowed=0
[  613.762718]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  613.795877]  ? lock_downgrade+0x900/0x900
[  613.800031]  ? trace_hardirqs_off+0xb8/0x310
[  613.804444]  ? trace_hardirqs_off+0xb8/0x310
[  613.808863]  __alloc_pages_slowpath+0x2651/0x2de0
[  613.813743]  ? warn_alloc+0x120/0x120
[  613.817549]  ? print_usage_bug+0xc0/0xc0
[  613.821613]  ? warn_alloc+0x120/0x120
[  613.825418]  ? warn_alloc+0x120/0x120
[  613.829219]  ? print_usage_bug+0xc0/0xc0
[  613.833288]  ? kvm_clock_read+0x18/0x30
[  613.837271]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  613.842315]  ? print_usage_bug+0xc0/0xc0
[  613.846376]  ? __lock_acquire+0x62f/0x4c20
[  613.850614]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  613.856151]  ? should_fail+0x22d/0xd01
[  613.860049]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  613.865326]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  613.870426]  ? __lock_acquire+0x62f/0x4c20
[  613.874668]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  613.879780]  ? __lock_acquire+0x62f/0x4c20
[  613.884023]  ? should_fail+0x22d/0xd01
[  613.888169]  ? rcu_irq_exit+0x1a2/0x390
[  613.892156]  ? mark_held_locks+0x130/0x130
[  613.896397]  ? mark_held_locks+0x130/0x130
[  613.900637]  ? mark_held_locks+0xc7/0x130
[  613.904783]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  613.909802]  ? zap_class+0x640/0x640
[  613.913518]  ? print_usage_bug+0xc0/0xc0
[  613.917616]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  613.923149]  ? check_preemption_disabled+0x48/0x280
[  613.928176]  ? __lock_is_held+0xb5/0x140
[  613.932243]  __alloc_pages_nodemask+0xad8/0xea0
[  613.936917]  ? zap_class+0x640/0x640
[  613.940651]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  613.945675]  ? find_held_lock+0x36/0x1c0
[  613.949754]  ? ____cache_alloc_node+0x1c7/0x1e0
[  613.954459]  ? lock_downgrade+0x900/0x900
[  613.958611]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  613.964167]  cache_grow_begin+0xa5/0x8c0
[  613.968224]  ? do_raw_spin_unlock+0xa7/0x330
[  613.972645]  fallback_alloc+0x204/0x2e0
[  613.976632]  ____cache_alloc_node+0x1c7/0x1e0
[  613.981134]  kmem_cache_alloc_node+0xe3/0x730
[  613.985631]  ? ipv6_get_ifaddr+0x42e/0x620
[  613.989877]  __alloc_skb+0x119/0x770
[  613.993590]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  613.998888]  ? netdev_alloc_frag+0x1f0/0x1f0
[  614.003293]  ? lock_downgrade+0x900/0x900
[  614.007443]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  614.012992]  ? refcount_sub_and_test_checked+0x203/0x310
[  614.018447]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  614.023898]  ? addrconf_rs_timer+0x690/0x690
[  614.028344]  ndisc_alloc_skb+0x144/0x340
[  614.032409]  ndisc_send_rs+0x331/0x6e0
[  614.036298]  addrconf_rs_timer+0x314/0x690
[  614.040535]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  614.044795]  call_timer_fn+0x272/0x920
[  614.048691]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  614.052927]  ? process_timeout+0x40/0x40
[  614.056995]  ? mark_held_locks+0xc7/0x130
[  614.061158]  ? _raw_spin_unlock_irq+0x27/0x80
[  614.065663]  ? _raw_spin_unlock_irq+0x27/0x80
[  614.070154]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  614.074387]  ? lockdep_hardirqs_on+0x296/0x5b0
[  614.078972]  ? trace_hardirqs_on+0xbd/0x310
[  614.083309]  ? kasan_check_read+0x11/0x20
[  614.087456]  ? __run_timers+0x7da/0xc70
[  614.091429]  ? trace_hardirqs_off_caller+0x310/0x310
[  614.096534]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  614.100772]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  614.105005]  __run_timers+0x7e5/0xc70
[  614.108811]  ? timer_fixup_init+0x70/0x70
[  614.112958]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  614.117973]  ? zap_class+0x640/0x640
[  614.121696]  ? print_usage_bug+0xc0/0xc0
[  614.125767]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  614.130964]  ? find_held_lock+0x36/0x1c0
[  614.135033]  ? zap_class+0x640/0x640
[  614.138758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  614.144296]  ? check_preemption_disabled+0x48/0x280
[  614.149321]  ? __lock_is_held+0xb5/0x140
[  614.153382]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  614.158923]  ? check_preemption_disabled+0x48/0x280
[  614.163944]  run_timer_softirq+0x52/0xb0
[  614.168004]  ? rcu_read_lock_sched_held+0x14f/0x180
[  614.173021]  __do_softirq+0x308/0xb7e
[  614.176826]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  614.181321]  ? lock_downgrade+0x900/0x900
[  614.185477]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  614.190606]  ? pvclock_read_flags+0x160/0x160
[  614.195104]  ? lapic_next_event+0x5a/0x90
[  614.199258]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  614.204806]  ? kvm_clock_read+0x18/0x30
[  614.208798]  ? kvm_sched_clock_read+0x9/0x20
[  614.213224]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  614.218765]  ? check_preemption_disabled+0x48/0x280
[  614.223787]  irq_exit+0x17f/0x1c0
[  614.227262]  smp_apic_timer_interrupt+0x1cb/0x760
[  614.232121]  ? smp_reschedule_interrupt+0x109/0x650
[  614.237136]  ? smp_call_function_single_interrupt+0x650/0x650
[  614.243016]  ? interrupt_entry+0xb5/0xc0
[  614.247095]  ? trace_hardirqs_off_caller+0xbb/0x310
[  614.252123]  ? trace_hardirqs_off_caller+0xbb/0x310
[  614.257139]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  614.261981]  ? trace_hardirqs_on_caller+0x310/0x310
[  614.266998]  ? trace_hardirqs_on_caller+0x310/0x310
[  614.272015]  ? task_prio+0x50/0x50
[  614.275558]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  614.281093]  ? check_preemption_disabled+0x48/0x280
[  614.286115]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  614.290963]  apic_timer_interrupt+0xf/0x20
[  614.295194]  </IRQ>
[  614.297432] RIP: 0010:dump_stack+0x358/0x39d
[  614.301862] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  614.320786] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  614.328493] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  614.335755] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  614.343022] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  614.350290] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  614.357571] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  614.364851]  ? dump_stack+0x34f/0x39d
[  614.368661]  ? dump_stack_print_info.cold.1+0x20/0x20
[  614.373852]  ? mark_held_locks+0x130/0x130
[  614.378087]  ? mark_held_locks+0x130/0x130
[  614.382323]  dump_header+0x27b/0xf72
[  614.386049]  ? pagefault_out_of_memory+0x197/0x197
[  614.390983]  ? __lock_acquire+0x62f/0x4c20
[  614.395217]  ? percpu_ref_get_many+0x240/0x240
[  614.399813]  ? print_usage_bug+0xc0/0xc0
[  614.403881]  ? zap_class+0x640/0x640
[  614.407593]  ? print_usage_bug+0xc0/0xc0
[  614.411650]  ? print_usage_bug+0xc0/0xc0
[  614.415711]  ? zap_class+0x640/0x640
[  614.419434]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  614.424978]  ? find_held_lock+0x36/0x1c0
[  614.429047]  ? mark_held_locks+0xc7/0x130
[  614.433197]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  614.438294]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  614.443395]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  614.447995]  ? trace_hardirqs_on+0xbd/0x310
[  614.452313]  ? kasan_check_read+0x11/0x20
[  614.456462]  ? ___ratelimit+0x3b4/0x672
[  614.460435]  ? trace_hardirqs_off_caller+0x310/0x310
[  614.465539]  ? trace_hardirqs_on+0x310/0x310
[  614.469980]  ? lock_downgrade+0x900/0x900
[  614.474149]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  614.479261]  ? ___ratelimit+0x3b9/0x672
[  614.483237]  ? idr_get_free+0xf70/0xf70
[  614.487212]  ? find_held_lock+0x36/0x1c0
[  614.491284]  oom_kill_process.cold.27+0x10/0x903
[  614.496036]  ? zap_class+0x640/0x640
[  614.499772]  ? check_preemption_disabled+0x48/0x280
[  614.504791]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  614.509716]  ? kasan_check_read+0x11/0x20
[  614.513866]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  614.519146]  ? oom_evaluate_task+0x540/0x540
[  614.523555]  ? find_held_lock+0x36/0x1c0
[  614.527620]  ? out_of_memory+0x974/0x1430
[  614.531764]  ? lock_downgrade+0x900/0x900
[  614.535910]  ? check_preemption_disabled+0x48/0x280
[  614.540928]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  614.545856]  ? kasan_check_read+0x11/0x20
[  614.550018]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  614.555431]  ? rcu_softirq_qs+0x20/0x20
[  614.559411]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  614.564948]  ? oom_evaluate_task+0x302/0x540
[  614.569358]  out_of_memory+0xa84/0x1430
[  614.573344]  ? oom_killer_disable+0x3a0/0x3a0
[  614.577844]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  614.582781]  ? __ww_mutex_check_waiters+0x160/0x160
[  614.587810]  __alloc_pages_slowpath+0x232c/0x2de0
[  614.592698]  ? warn_alloc+0x120/0x120
[  614.596507]  ? mark_held_locks+0x130/0x130
[  614.600769]  ? find_get_entry+0xaae/0x1120
[  614.605015]  ? filemap_map_pages+0x1a20/0x1a20
[  614.609603]  ? zap_class+0x640/0x640
[  614.613321]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  614.618877]  ? check_preemption_disabled+0x48/0x280
[  614.623895]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  614.629466]  ? should_fail+0x22d/0xd01
[  614.633358]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  614.638462]  ? zap_class+0x640/0x640
[  614.642213]  ? __lock_is_held+0xb5/0x140
[  614.646287]  ? mark_held_locks+0x130/0x130
[  614.650526]  ? lock_release+0xa00/0xa00
[  614.654502]  ? perf_trace_sched_process_exec+0x860/0x860
[  614.659966]  ? xa_load+0x2ba/0x460
[  614.663506]  ? lock_downgrade+0x900/0x900
[  614.667658]  ? __might_sleep+0x95/0x190
[  614.671635]  __alloc_pages_nodemask+0xad8/0xea0
[  614.676313]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  614.681357]  ? __page_cache_alloc+0x191/0x5c0
[  614.686350]  ? xa_load+0x2e1/0x460
[  614.689937]  ? xa_clear_mark+0x40/0x40
[  614.693823]  ? zap_class+0x640/0x640
[  614.697547]  ? zap_class+0x640/0x640
[  614.701273]  ? zap_class+0x640/0x640
[  614.704983]  ? __do_page_cache_readahead+0x663/0x810
[  614.710091]  ? find_held_lock+0x36/0x1c0
[  614.714171]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  614.719714]  alloc_pages_current+0x173/0x350
[  614.724133]  __page_cache_alloc+0x38c/0x5c0
[  614.728484]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  614.733414]  ? kasan_check_read+0x11/0x20
[  614.737575]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  614.742860]  ? generic_perform_write+0x6a0/0x6a0
[  614.747620]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  614.753170]  ? check_preemption_disabled+0x48/0x280
[  614.758199]  filemap_fault+0x1595/0x25f0
[  614.762279]  ? __lock_page_or_retry+0xa00/0xa00
[  614.766964]  ? mark_held_locks+0x130/0x130
[  614.771211]  ? filemap_map_pages+0xd6b/0x1a20
[  614.775709]  ? lock_downgrade+0x900/0x900
[  614.779864]  ? check_preemption_disabled+0x48/0x280
[  614.784884]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  614.789830]  ? kasan_check_read+0x11/0x20
[  614.793973]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  614.799250]  ? rcu_softirq_qs+0x20/0x20
[  614.803241]  ? filemap_map_pages+0xd92/0x1a20
[  614.807753]  ? print_usage_bug+0xc0/0xc0
[  614.811825]  ? find_get_entries_tag+0x1400/0x1400
[  614.816666]  ? __kasan_slab_free+0x102/0x150
[  614.821075]  ? kasan_slab_free+0xe/0x10
[  614.825067]  ? kmem_cache_free+0x83/0x290
[  614.829214]  ? __sigqueue_free.part.29+0x74/0x90
[  614.833987]  ? lock_acquire+0x1ed/0x520
[  614.837960]  ? ext4_filemap_fault+0x7a/0xad
[  614.842333]  ? lock_release+0xa00/0xa00
[  614.846303]  ? perf_trace_sched_process_exec+0x860/0x860
[  614.851759]  ? print_usage_bug+0xc0/0xc0
[  614.855853]  ? print_usage_bug+0xc0/0xc0
[  614.859921]  ? down_read+0x8d/0x120
[  614.863548]  ? ext4_filemap_fault+0x7a/0xad
[  614.867868]  ? __down_interruptible+0x700/0x700
[  614.872543]  ext4_filemap_fault+0x82/0xad
[  614.876690]  __do_fault+0x100/0x6b0
[  614.880319]  ? pmd_devmap_trans_unstable+0x220/0x220
[  614.885420]  ? mark_held_locks+0x130/0x130
[  614.889656]  ? mark_held_locks+0x130/0x130
[  614.893892]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  614.899432]  ? rcu_pm_notify+0xc0/0xc0
[  614.903338]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  614.908878]  __handle_mm_fault+0x3ea0/0x5be0
[  614.913306]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  614.918163]  ? _raw_spin_unlock_irq+0x27/0x80
[  614.922670]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  614.927272]  ? trace_hardirqs_on+0xbd/0x310
[  614.931592]  ? kasan_check_read+0x11/0x20
[  614.935748]  ? __set_current_blocked+0xdf/0x120
[  614.940436]  ? trace_hardirqs_off_caller+0x310/0x310
[  614.945563]  ? zap_class+0x640/0x640
[  614.949276]  ? zap_class+0x640/0x640
[  614.953014]  ? find_held_lock+0x36/0x1c0
[  614.957099]  ? handle_mm_fault+0x42a/0xc70
[  614.961335]  ? lock_downgrade+0x900/0x900
[  614.965486]  ? check_preemption_disabled+0x48/0x280
[  614.970502]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  614.975427]  ? kasan_check_read+0x11/0x20
[  614.979575]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  614.984851]  ? rcu_softirq_qs+0x20/0x20
[  614.988824]  ? trace_hardirqs_off_caller+0x310/0x310
[  614.993925]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  614.999479]  ? check_preemption_disabled+0x48/0x280
[  615.004498]  handle_mm_fault+0x54f/0xc70
[  615.008559]  ? __handle_mm_fault+0x5be0/0x5be0
[  615.013146]  ? find_vma+0x34/0x190
[  615.016688]  __do_page_fault+0x5e8/0xe60
[  615.020757]  ? exit_to_usermode_loop+0x1f4/0x380
[  615.025520]  do_page_fault+0xf2/0x7e0
[  615.029321]  ? vmalloc_sync_all+0x30/0x30
[  615.033466]  ? error_entry+0x70/0xd0
[  615.037182]  ? trace_hardirqs_off_caller+0xbb/0x310
[  615.042195]  ? trace_hardirqs_on_caller+0xc0/0x310
[  615.047122]  ? syscall_return_slowpath+0x5e0/0x5e0
[  615.052051]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  615.056893]  ? trace_hardirqs_on_caller+0x310/0x310
[  615.061904]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  615.067360]  ? prepare_exit_to_usermode+0x291/0x3b0
[  615.072372]  ? page_fault+0x8/0x30
[  615.075913]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  615.080771]  ? page_fault+0x8/0x30
[  615.084312]  page_fault+0x1e/0x30
[  615.087762] RIP: 0033:0x45db60
[  615.090996] Code: Bad RIP value.
[  615.094387] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  615.099790] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  615.107056] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  615.114323] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  615.121590] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  615.128855] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  615.136156] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  615.136161] warn_alloc_show_mem: 1 callbacks suppressed
[  615.136168] Mem-Info:
[  615.143029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  615.148396] active_anon:42936 inactive_anon:306 isolated_anon:0
[  615.148396]  active_file:13 inactive_file:13 isolated_file:0
[  615.148396]  unevictable:0 dirty:0 writeback:0 unstable:0
[  615.148396]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  615.148396]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  615.148396]  free:13785 free_pcp:492 free_cma:0
[  615.150783] Call Trace:
[  615.160165] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  615.192929]  dump_stack+0x244/0x39d
[  615.195491] 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
[  615.223073]  ? dump_stack_print_info.cold.1+0x20/0x20
[  615.226685] lowmem_reserve[]: 0 2818 6321 6321
[  615.252793]  warn_alloc.cold.116+0xb7/0x1bd
[  615.257946] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  615.262521]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  615.266817] lowmem_reserve[]: 0 0 3503 3503
[  615.293958]  ? lock_downgrade+0x900/0x900
[  615.298773] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  615.303094]  ? trace_hardirqs_off+0xb8/0x310
[  615.307208] lowmem_reserve[]: 0 0 0 0
[  615.336351]  ? trace_hardirqs_off+0xb8/0x310
[  615.340741] 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
[  615.344555]  __alloc_pages_slowpath+0x2651/0x2de0
[  615.348944] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  615.362486]  ? warn_alloc+0x120/0x120
[  615.367277] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  615.382447]  ? warn_alloc+0x120/0x120
[  615.386238] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  615.401393]  ? warn_alloc+0x120/0x120
[  615.405203] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  615.414027]  ? print_usage_bug+0xc0/0xc0
[  615.417800] 380 total pagecache pages
[  615.426364]  ? print_usage_bug+0xc0/0xc0
[  615.430419] 0 pages in swap cache
[  615.434205]  ? print_usage_bug+0xc0/0xc0
[  615.438243] Swap cache stats: add 0, delete 0, find 0/0
[  615.441684]  ? kasan_check_read+0x11/0x20
[  615.445738] Free swap  = 0kB
[  615.451127]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  615.455250] Total swap = 0kB
[  615.458271]  ? rcu_softirq_qs+0x20/0x20
[  615.463529] 1965979 pages RAM
[  615.466545]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  615.470491] 0 pages HighMem/MovableOnly
[  615.473604]  ? should_fail+0x22d/0xd01
[  615.479115] 342854 pages reserved
[  615.483082]  ? __lock_acquire+0x62f/0x4c20
[  615.486941] 0 pages cma reserved
[  615.490385]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  615.494654] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  615.497948]  ? __lock_acquire+0x62f/0x4c20
[  615.503111] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  615.509524]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  615.513743] syz-fuzzer cpuset=/ mems_allowed=0
[  615.523965]  ? __lock_acquire+0x62f/0x4c20
[  615.537852]  ? should_fail+0x22d/0xd01
[  615.541774]  ? mark_held_locks+0x130/0x130
[  615.546015]  ? mark_held_locks+0x130/0x130
[  615.550253]  ? __enqueue_entity+0x10d/0x1f0
[  615.554576]  ? zap_class+0x640/0x640
[  615.558290]  ? print_usage_bug+0xc0/0xc0
[  615.562350]  ? enqueue_entity+0x34b/0x20a0
[  615.566600]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  615.572137]  ? check_preemption_disabled+0x48/0x280
[  615.577160]  ? __lock_is_held+0xb5/0x140
[  615.581242]  __alloc_pages_nodemask+0xad8/0xea0
[  615.585912]  ? zap_class+0x640/0x640
[  615.589627]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  615.594650]  ? find_held_lock+0x36/0x1c0
[  615.598765]  ? ____cache_alloc_node+0x1c7/0x1e0
[  615.603454]  ? lock_downgrade+0x900/0x900
[  615.607618]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  615.613159]  cache_grow_begin+0xa5/0x8c0
[  615.617218]  ? do_raw_spin_unlock+0xa7/0x330
[  615.621646]  fallback_alloc+0x204/0x2e0
[  615.625634]  ____cache_alloc_node+0x1c7/0x1e0
[  615.630136]  kmem_cache_alloc_node+0xe3/0x730
[  615.634631]  ? ipv6_get_ifaddr+0x42e/0x620
[  615.638872]  __alloc_skb+0x119/0x770
[  615.642585]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  615.647862]  ? netdev_alloc_frag+0x1f0/0x1f0
[  615.652316]  ? lock_downgrade+0x900/0x900
[  615.656482]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  615.662019]  ? refcount_sub_and_test_checked+0x203/0x310
[  615.667473]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  615.672923]  ? addrconf_rs_timer+0x690/0x690
[  615.677345]  ndisc_alloc_skb+0x144/0x340
[  615.681409]  ndisc_send_rs+0x331/0x6e0
[  615.685305]  addrconf_rs_timer+0x314/0x690
[  615.689544]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  615.693792]  call_timer_fn+0x272/0x920
[  615.697679]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  615.701909]  ? process_timeout+0x40/0x40
[  615.705992]  ? __run_timers+0x7da/0xc70
[  615.709983]  ? _raw_spin_unlock_irq+0x27/0x80
[  615.714476]  ? _raw_spin_unlock_irq+0x27/0x80
[  615.718965]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  615.723198]  ? lockdep_hardirqs_on+0x296/0x5b0
[  615.727780]  ? trace_hardirqs_on+0xbd/0x310
[  615.732099]  ? kasan_check_read+0x11/0x20
[  615.736240]  ? __run_timers+0x7da/0xc70
[  615.740215]  ? trace_hardirqs_off_caller+0x310/0x310
[  615.745327]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  615.749555]  __run_timers+0x7e5/0xc70
[  615.753361]  ? timer_fixup_init+0x70/0x70
[  615.757508]  ? _raw_spin_unlock_irq+0x27/0x80
[  615.762003]  ? _raw_spin_unlock_irq+0x27/0x80
[  615.766498]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  615.771085]  ? trace_hardirqs_on+0xbd/0x310
[  615.775403]  ? kasan_check_read+0x11/0x20
[  615.779594]  ? finish_task_switch+0x1f4/0x910
[  615.784103]  ? trace_hardirqs_off_caller+0x310/0x310
[  615.789206]  ? compat_start_thread+0x80/0x80
[  615.793636]  ? pvclock_read_flags+0x160/0x160
[  615.798126]  ? __switch_to_asm+0x34/0x70
[  615.802186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  615.807722]  ? check_preemption_disabled+0x48/0x280
[  615.812772]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  615.818313]  ? rcu_pm_notify+0xc0/0xc0
[  615.822202]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  615.827744]  ? check_preemption_disabled+0x48/0x280
[  615.832814]  run_timer_softirq+0x52/0xb0
[  615.836886]  ? rcu_read_lock_sched_held+0x14f/0x180
[  615.841902]  __do_softirq+0x308/0xb7e
[  615.845708]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  615.850476]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  615.855593]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  615.861043]  ? trace_hardirqs_on+0x310/0x310
[  615.865458]  ? schedule+0x108/0x460
[  615.869092]  ? trace_hardirqs_off+0xb8/0x310
[  615.873499]  ? smpboot_thread_fn+0x68b/0xa00
[  615.877912]  ? trace_hardirqs_on+0x310/0x310
[  615.882320]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  615.888114]  ? check_preemption_disabled+0x48/0x280
[  615.893130]  ? takeover_tasklets+0xa90/0xa90
[  615.897538]  run_ksoftirqd+0x5e/0x100
[  615.901336]  smpboot_thread_fn+0x68b/0xa00
[  615.905573]  ? sort_range+0x30/0x30
[  615.909201]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  615.914305]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  615.919843]  ? __kthread_parkme+0xfb/0x1a0
[  615.924081]  ? sort_range+0x30/0x30
[  615.927709]  kthread+0x35a/0x440
[  615.931084]  ? kthread_stop+0x900/0x900
[  615.935058]  ret_from_fork+0x3a/0x50
[  615.938806] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  615.938917] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  615.945819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  615.945828] Call Trace:
[  615.952394] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  615.961643]  <IRQ>
[  615.964214] ksoftirqd/0 cpuset=/ mems_allowed=0
[  615.974515]  dump_stack+0x244/0x39d
[  615.984909]  ? dump_stack_print_info.cold.1+0x20/0x20
[  615.990287]  warn_alloc.cold.116+0xb7/0x1bd
[  615.994611]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  615.999494]  ? lock_downgrade+0x900/0x900
[  616.003664]  ? trace_hardirqs_off+0xb8/0x310
[  616.008079]  ? trace_hardirqs_off+0xb8/0x310
[  616.012508]  __alloc_pages_slowpath+0x2651/0x2de0
[  616.017381]  ? warn_alloc+0x120/0x120
[  616.021183]  ? print_usage_bug+0xc0/0xc0
[  616.025249]  ? warn_alloc+0x120/0x120
[  616.029060]  ? warn_alloc+0x120/0x120
[  616.032863]  ? print_usage_bug+0xc0/0xc0
[  616.036924]  ? kvm_clock_read+0x18/0x30
[  616.040899]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  616.045919]  ? print_usage_bug+0xc0/0xc0
[  616.049981]  ? __lock_acquire+0x62f/0x4c20
[  616.054223]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  616.059762]  ? should_fail+0x22d/0xd01
[  616.063663]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  616.068941]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  616.074041]  ? __lock_acquire+0x62f/0x4c20
[  616.078287]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  616.083385]  ? __lock_acquire+0x62f/0x4c20
[  616.087619]  ? should_fail+0x22d/0xd01
[  616.091499]  ? rcu_irq_exit+0x1a2/0x390
[  616.095498]  ? mark_held_locks+0x130/0x130
[  616.099746]  ? mark_held_locks+0x130/0x130
[  616.103991]  ? mark_held_locks+0xc7/0x130
[  616.108139]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  616.113154]  ? zap_class+0x640/0x640
[  616.116869]  ? print_usage_bug+0xc0/0xc0
[  616.120932]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  616.126470]  ? check_preemption_disabled+0x48/0x280
[  616.131491]  ? __lock_is_held+0xb5/0x140
[  616.135556]  __alloc_pages_nodemask+0xad8/0xea0
[  616.140223]  ? zap_class+0x640/0x640
[  616.143946]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  616.148978]  ? find_held_lock+0x36/0x1c0
[  616.153063]  ? ____cache_alloc_node+0x1c7/0x1e0
[  616.157765]  ? lock_downgrade+0x900/0x900
[  616.161922]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  616.167464]  cache_grow_begin+0xa5/0x8c0
[  616.171551]  ? do_raw_spin_unlock+0xa7/0x330
[  616.175982]  fallback_alloc+0x204/0x2e0
[  616.179982]  ____cache_alloc_node+0x1c7/0x1e0
[  616.184483]  kmem_cache_alloc_node+0xe3/0x730
[  616.188977]  ? ipv6_get_ifaddr+0x42e/0x620
[  616.193226]  __alloc_skb+0x119/0x770
[  616.196939]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  616.202236]  ? netdev_alloc_frag+0x1f0/0x1f0
[  616.206680]  ? lock_downgrade+0x900/0x900
[  616.210867]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  616.216429]  ? refcount_sub_and_test_checked+0x203/0x310
[  616.221886]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  616.227335]  ? addrconf_rs_timer+0x690/0x690
[  616.231765]  ndisc_alloc_skb+0x144/0x340
[  616.235835]  ndisc_send_rs+0x331/0x6e0
[  616.239727]  addrconf_rs_timer+0x314/0x690
[  616.243982]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  616.248229]  call_timer_fn+0x272/0x920
[  616.252118]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  616.256351]  ? process_timeout+0x40/0x40
[  616.260424]  ? mark_held_locks+0xc7/0x130
[  616.264571]  ? _raw_spin_unlock_irq+0x27/0x80
[  616.269064]  ? _raw_spin_unlock_irq+0x27/0x80
[  616.273554]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  616.277787]  ? lockdep_hardirqs_on+0x296/0x5b0
[  616.282368]  ? trace_hardirqs_on+0xbd/0x310
[  616.286686]  ? kasan_check_read+0x11/0x20
[  616.290844]  ? __run_timers+0x7da/0xc70
[  616.294833]  ? trace_hardirqs_off_caller+0x310/0x310
[  616.299943]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  616.304183]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  616.308415]  __run_timers+0x7e5/0xc70
[  616.312224]  ? timer_fixup_init+0x70/0x70
[  616.316388]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  616.321404]  ? zap_class+0x640/0x640
[  616.325122]  ? print_usage_bug+0xc0/0xc0
[  616.329181]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  616.334374]  ? find_held_lock+0x36/0x1c0
[  616.338443]  ? zap_class+0x640/0x640
[  616.342164]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  616.347702]  ? check_preemption_disabled+0x48/0x280
[  616.352774]  ? __lock_is_held+0xb5/0x140
[  616.356840]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  616.362378]  ? check_preemption_disabled+0x48/0x280
[  616.367399]  run_timer_softirq+0x52/0xb0
[  616.371458]  ? rcu_read_lock_sched_held+0x14f/0x180
[  616.376510]  __do_softirq+0x308/0xb7e
[  616.380316]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  616.384809]  ? lock_downgrade+0x900/0x900
[  616.388964]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  616.394073]  ? pvclock_read_flags+0x160/0x160
[  616.398575]  ? lapic_next_event+0x5a/0x90
[  616.402722]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  616.408272]  ? kvm_clock_read+0x18/0x30
[  616.412243]  ? kvm_sched_clock_read+0x9/0x20
[  616.416659]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  616.422211]  ? check_preemption_disabled+0x48/0x280
[  616.427238]  irq_exit+0x17f/0x1c0
[  616.430696]  smp_apic_timer_interrupt+0x1cb/0x760
[  616.435535]  ? smp_reschedule_interrupt+0x109/0x650
[  616.440548]  ? smp_call_function_single_interrupt+0x650/0x650
[  616.446432]  ? interrupt_entry+0xb5/0xc0
[  616.450493]  ? trace_hardirqs_off_caller+0xbb/0x310
[  616.455525]  ? trace_hardirqs_off_caller+0xbb/0x310
[  616.460540]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  616.465407]  ? trace_hardirqs_on_caller+0x310/0x310
[  616.470418]  ? trace_hardirqs_on_caller+0x310/0x310
[  616.475434]  ? task_prio+0x50/0x50
[  616.478978]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  616.484513]  ? check_preemption_disabled+0x48/0x280
[  616.489532]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  616.494379]  apic_timer_interrupt+0xf/0x20
[  616.498602]  </IRQ>
[  616.500844] RIP: 0010:dump_stack+0x358/0x39d
[  616.505259] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  616.524169] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  616.531875] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  616.539136] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  616.546403] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  616.553769] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  616.561037] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  616.568324]  ? dump_stack+0x34f/0x39d
[  616.572144]  ? dump_stack_print_info.cold.1+0x20/0x20
[  616.577340]  ? mark_held_locks+0x130/0x130
[  616.581600]  ? mark_held_locks+0x130/0x130
[  616.585853]  dump_header+0x27b/0xf72
[  616.589608]  ? pagefault_out_of_memory+0x197/0x197
[  616.594541]  ? __lock_acquire+0x62f/0x4c20
[  616.598774]  ? percpu_ref_get_many+0x240/0x240
[  616.603359]  ? print_usage_bug+0xc0/0xc0
[  616.607443]  ? zap_class+0x640/0x640
[  616.611174]  ? print_usage_bug+0xc0/0xc0
[  616.615230]  ? print_usage_bug+0xc0/0xc0
[  616.619299]  ? zap_class+0x640/0x640
[  616.623016]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  616.628559]  ? find_held_lock+0x36/0x1c0
[  616.632638]  ? mark_held_locks+0xc7/0x130
[  616.636800]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  616.641899]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  616.647014]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  616.651594]  ? trace_hardirqs_on+0xbd/0x310
[  616.655915]  ? kasan_check_read+0x11/0x20
[  616.660061]  ? ___ratelimit+0x3b4/0x672
[  616.664033]  ? trace_hardirqs_off_caller+0x310/0x310
[  616.669135]  ? trace_hardirqs_on+0x310/0x310
[  616.673546]  ? lock_downgrade+0x900/0x900
[  616.677704]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  616.682814]  ? ___ratelimit+0x3b9/0x672
[  616.687312]  ? idr_get_free+0xf70/0xf70
[  616.691284]  ? find_held_lock+0x36/0x1c0
[  616.695352]  oom_kill_process.cold.27+0x10/0x903
[  616.700104]  ? zap_class+0x640/0x640
[  616.703816]  ? check_preemption_disabled+0x48/0x280
[  616.708847]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  616.713775]  ? kasan_check_read+0x11/0x20
[  616.717919]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  616.723196]  ? oom_evaluate_task+0x540/0x540
[  616.727606]  ? find_held_lock+0x36/0x1c0
[  616.731675]  ? out_of_memory+0x974/0x1430
[  616.735827]  ? lock_downgrade+0x900/0x900
[  616.739970]  ? check_preemption_disabled+0x48/0x280
[  616.744991]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  616.749933]  ? kasan_check_read+0x11/0x20
[  616.754080]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  616.759355]  ? rcu_softirq_qs+0x20/0x20
[  616.763345]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  616.768881]  ? oom_evaluate_task+0x302/0x540
[  616.773297]  out_of_memory+0xa84/0x1430
[  616.777283]  ? oom_killer_disable+0x3a0/0x3a0
[  616.781777]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  616.786725]  ? __ww_mutex_check_waiters+0x160/0x160
[  616.791781]  __alloc_pages_slowpath+0x232c/0x2de0
[  616.796658]  ? warn_alloc+0x120/0x120
[  616.800472]  ? mark_held_locks+0x130/0x130
[  616.804715]  ? find_get_entry+0xaae/0x1120
[  616.808971]  ? filemap_map_pages+0x1a20/0x1a20
[  616.813595]  ? zap_class+0x640/0x640
[  616.817310]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  616.822849]  ? check_preemption_disabled+0x48/0x280
[  616.827863]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  616.833403]  ? should_fail+0x22d/0xd01
[  616.837308]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  616.842411]  ? zap_class+0x640/0x640
[  616.846151]  ? __lock_is_held+0xb5/0x140
[  616.850221]  ? mark_held_locks+0x130/0x130
[  616.854460]  ? lock_release+0xa00/0xa00
[  616.858433]  ? perf_trace_sched_process_exec+0x860/0x860
[  616.863879]  ? xa_load+0x2ba/0x460
[  616.867419]  ? lock_downgrade+0x900/0x900
[  616.871570]  ? __might_sleep+0x95/0x190
[  616.875550]  __alloc_pages_nodemask+0xad8/0xea0
[  616.880222]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  616.885242]  ? __page_cache_alloc+0x191/0x5c0
[  616.889745]  ? xa_load+0x2e1/0x460
[  616.893305]  ? xa_clear_mark+0x40/0x40
[  616.897193]  ? zap_class+0x640/0x640
[  616.900914]  ? zap_class+0x640/0x640
[  616.904624]  ? zap_class+0x640/0x640
[  616.908334]  ? __do_page_cache_readahead+0x663/0x810
[  616.913445]  ? find_held_lock+0x36/0x1c0
[  616.917522]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  616.923096]  alloc_pages_current+0x173/0x350
[  616.927507]  __page_cache_alloc+0x38c/0x5c0
[  616.931825]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  616.936756]  ? kasan_check_read+0x11/0x20
[  616.940902]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  616.946216]  ? generic_perform_write+0x6a0/0x6a0
[  616.950976]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  616.956513]  ? check_preemption_disabled+0x48/0x280
[  616.961536]  filemap_fault+0x1595/0x25f0
[  616.965608]  ? __lock_page_or_retry+0xa00/0xa00
[  616.970300]  ? mark_held_locks+0x130/0x130
[  616.974546]  ? filemap_map_pages+0xd6b/0x1a20
[  616.979038]  ? lock_downgrade+0x900/0x900
[  616.983183]  ? check_preemption_disabled+0x48/0x280
[  616.988199]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  616.993128]  ? kasan_check_read+0x11/0x20
[  616.997279]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  617.002558]  ? rcu_softirq_qs+0x20/0x20
[  617.006564]  ? filemap_map_pages+0xd92/0x1a20
[  617.011069]  ? print_usage_bug+0xc0/0xc0
[  617.015138]  ? find_get_entries_tag+0x1400/0x1400
[  617.019977]  ? __kasan_slab_free+0x102/0x150
[  617.024381]  ? kasan_slab_free+0xe/0x10
[  617.028353]  ? kmem_cache_free+0x83/0x290
[  617.032498]  ? __sigqueue_free.part.29+0x74/0x90
[  617.037301]  ? lock_acquire+0x1ed/0x520
[  617.041291]  ? ext4_filemap_fault+0x7a/0xad
[  617.045617]  ? lock_release+0xa00/0xa00
[  617.049592]  ? perf_trace_sched_process_exec+0x860/0x860
[  617.055045]  ? print_usage_bug+0xc0/0xc0
[  617.059105]  ? print_usage_bug+0xc0/0xc0
[  617.063175]  ? down_read+0x8d/0x120
[  617.066815]  ? ext4_filemap_fault+0x7a/0xad
[  617.071133]  ? __down_interruptible+0x700/0x700
[  617.075838]  ext4_filemap_fault+0x82/0xad
[  617.079987]  __do_fault+0x100/0x6b0
[  617.083620]  ? pmd_devmap_trans_unstable+0x220/0x220
[  617.088750]  ? mark_held_locks+0x130/0x130
[  617.092999]  ? mark_held_locks+0x130/0x130
[  617.097249]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  617.102821]  ? rcu_pm_notify+0xc0/0xc0
[  617.106719]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  617.112274]  __handle_mm_fault+0x3ea0/0x5be0
[  617.116691]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  617.121531]  ? _raw_spin_unlock_irq+0x27/0x80
[  617.126025]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  617.130607]  ? trace_hardirqs_on+0xbd/0x310
[  617.134930]  ? kasan_check_read+0x11/0x20
[  617.139075]  ? __set_current_blocked+0xdf/0x120
[  617.143752]  ? trace_hardirqs_off_caller+0x310/0x310
[  617.148870]  ? zap_class+0x640/0x640
[  617.152588]  ? zap_class+0x640/0x640
[  617.156353]  ? find_held_lock+0x36/0x1c0
[  617.160435]  ? handle_mm_fault+0x42a/0xc70
[  617.164704]  ? lock_downgrade+0x900/0x900
[  617.168861]  ? check_preemption_disabled+0x48/0x280
[  617.173881]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  617.178807]  ? kasan_check_read+0x11/0x20
[  617.182955]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  617.188229]  ? rcu_softirq_qs+0x20/0x20
[  617.192211]  ? trace_hardirqs_off_caller+0x310/0x310
[  617.197353]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  617.202894]  ? check_preemption_disabled+0x48/0x280
[  617.207917]  handle_mm_fault+0x54f/0xc70
[  617.211983]  ? __handle_mm_fault+0x5be0/0x5be0
[  617.216569]  ? find_vma+0x34/0x190
[  617.220117]  __do_page_fault+0x5e8/0xe60
[  617.224181]  ? exit_to_usermode_loop+0x1f4/0x380
[  617.228947]  do_page_fault+0xf2/0x7e0
[  617.232755]  ? vmalloc_sync_all+0x30/0x30
[  617.236916]  ? error_entry+0x70/0xd0
[  617.240632]  ? trace_hardirqs_off_caller+0xbb/0x310
[  617.245650]  ? trace_hardirqs_on_caller+0xc0/0x310
[  617.250582]  ? syscall_return_slowpath+0x5e0/0x5e0
[  617.255507]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  617.260352]  ? trace_hardirqs_on_caller+0x310/0x310
[  617.265366]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  617.270837]  ? prepare_exit_to_usermode+0x291/0x3b0
[  617.275856]  ? page_fault+0x8/0x30
[  617.279397]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  617.284279]  ? page_fault+0x8/0x30
[  617.287857]  page_fault+0x1e/0x30
[  617.291307] RIP: 0033:0x45db60
[  617.294522] Code: Bad RIP value.
[  617.297884] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  617.303243] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  617.310513] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  617.317805] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  617.325067] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  617.332333] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  617.339645] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  617.339650] warn_alloc_show_mem: 1 callbacks suppressed
[  617.339658] Mem-Info:
[  617.346492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  617.351856] active_anon:42936 inactive_anon:306 isolated_anon:0
[  617.351856]  active_file:13 inactive_file:13 isolated_file:0
[  617.351856]  unevictable:0 dirty:0 writeback:0 unstable:0
[  617.351856]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  617.351856]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  617.351856]  free:13785 free_pcp:492 free_cma:0
[  617.354223] Call Trace:
[  617.363611] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  617.396375]  dump_stack+0x244/0x39d
[  617.398929] 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
[  617.426508]  ? dump_stack_print_info.cold.1+0x20/0x20
[  617.430105] lowmem_reserve[]: 0 2818 6321 6321
[  617.456214]  warn_alloc.cold.116+0xb7/0x1bd
[  617.461367] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  617.465956]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  617.470248] lowmem_reserve[]: 0 0 3503 3503
[  617.497394]  ? lock_downgrade+0x900/0x900
[  617.502207] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  617.506536]  ? trace_hardirqs_off+0xb8/0x310
[  617.510653] lowmem_reserve[]: 0 0 0 0
[  617.539793]  ? trace_hardirqs_off+0xb8/0x310
[  617.544170] 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
[  617.547970]  __alloc_pages_slowpath+0x2651/0x2de0
[  617.552349] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  617.565897]  ? warn_alloc+0x120/0x120
[  617.570693] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  617.585864]  ? print_usage_bug+0xc0/0xc0
[  617.589660] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  617.604812]  ? warn_alloc+0x120/0x120
[  617.608848] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  617.617687]  ? warn_alloc+0x120/0x120
[  617.621458] 380 total pagecache pages
[  617.630026]  ? print_usage_bug+0xc0/0xc0
[  617.633833] 0 pages in swap cache
[  617.637618]  ? print_usage_bug+0xc0/0xc0
[  617.641652] Swap cache stats: add 0, delete 0, find 0/0
[  617.645094]  ? __lock_acquire+0x62f/0x4c20
[  617.649131] Free swap  = 0kB
[  617.654482]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  617.658684] Total swap = 0kB
[  617.661706]  ? should_fail+0x22d/0xd01
[  617.667215] 1965979 pages RAM
[  617.670242]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  617.674106] 0 pages HighMem/MovableOnly
[  617.677230]  ? __lock_acquire+0x62f/0x4c20
[  617.682308] 342854 pages reserved
[  617.686289]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  617.690495] 0 pages cma reserved
[  617.693939]  ? __lock_acquire+0x62f/0x4c20
[  617.699071] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  617.702366]  ? should_fail+0x22d/0xd01
[  617.702382]  ? find_held_lock+0x36/0x1c0
[  617.706795] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  617.713101]  ? mark_held_locks+0x130/0x130
[  617.716959] syz-fuzzer cpuset=/ mems_allowed=0
[  617.721014]  ? mark_held_locks+0x130/0x130
[  617.744200]  ? zap_class+0x640/0x640
[  617.747920]  ? mark_held_locks+0xc7/0x130
[  617.752077]  ? do_raw_spin_unlock+0xa7/0x330
[  617.756482]  ? zap_class+0x640/0x640
[  617.760193]  ? print_usage_bug+0xc0/0xc0
[  617.764255]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  617.769791]  ? check_preemption_disabled+0x48/0x280
[  617.774828]  ? __lock_is_held+0xb5/0x140
[  617.778895]  __alloc_pages_nodemask+0xad8/0xea0
[  617.783562]  ? zap_class+0x640/0x640
[  617.787276]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  617.792302]  ? find_held_lock+0x36/0x1c0
[  617.796386]  ? ____cache_alloc_node+0x1c7/0x1e0
[  617.801055]  ? lock_downgrade+0x900/0x900
[  617.805221]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  617.810790]  cache_grow_begin+0xa5/0x8c0
[  617.814866]  ? do_raw_spin_unlock+0xa7/0x330
[  617.819299]  fallback_alloc+0x204/0x2e0
[  617.823276]  ____cache_alloc_node+0x1c7/0x1e0
[  617.827779]  kmem_cache_alloc_node+0xe3/0x730
[  617.832274]  ? ipv6_get_ifaddr+0x42e/0x620
[  617.836536]  __alloc_skb+0x119/0x770
[  617.840262]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  617.845546]  ? netdev_alloc_frag+0x1f0/0x1f0
[  617.849970]  ? lock_downgrade+0x900/0x900
[  617.854125]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  617.859660]  ? refcount_sub_and_test_checked+0x203/0x310
[  617.865114]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  617.870564]  ? addrconf_rs_timer+0x690/0x690
[  617.874998]  ndisc_alloc_skb+0x144/0x340
[  617.879060]  ndisc_send_rs+0x331/0x6e0
[  617.882983]  addrconf_rs_timer+0x314/0x690
[  617.887223]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  617.891479]  call_timer_fn+0x272/0x920
[  617.895373]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  617.899604]  ? process_timeout+0x40/0x40
[  617.903671]  ? __run_timers+0x7da/0xc70
[  617.907649]  ? _raw_spin_unlock_irq+0x27/0x80
[  617.912145]  ? _raw_spin_unlock_irq+0x27/0x80
[  617.916636]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  617.920873]  ? lockdep_hardirqs_on+0x296/0x5b0
[  617.925454]  ? trace_hardirqs_on+0xbd/0x310
[  617.929775]  ? kasan_check_read+0x11/0x20
[  617.933938]  ? __run_timers+0x7da/0xc70
[  617.937913]  ? trace_hardirqs_off_caller+0x310/0x310
[  617.943019]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  617.947270]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  617.951499]  __run_timers+0x7e5/0xc70
[  617.955311]  ? timer_fixup_init+0x70/0x70
[  617.959460]  ? _raw_spin_unlock_irq+0x27/0x80
[  617.963953]  ? _raw_spin_unlock_irq+0x27/0x80
[  617.968449]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  617.973028]  ? trace_hardirqs_on+0xbd/0x310
[  617.977346]  ? kasan_check_read+0x11/0x20
[  617.981496]  ? finish_task_switch+0x1f4/0x910
[  617.985996]  ? trace_hardirqs_off_caller+0x310/0x310
[  617.991095]  ? compat_start_thread+0x80/0x80
[  617.995527]  ? pvclock_read_flags+0x160/0x160
[  618.000018]  ? __switch_to_asm+0x34/0x70
[  618.004083]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  618.009622]  ? check_preemption_disabled+0x48/0x280
[  618.014650]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  618.020191]  ? rcu_pm_notify+0xc0/0xc0
[  618.024079]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  618.029617]  ? check_preemption_disabled+0x48/0x280
[  618.034641]  run_timer_softirq+0x52/0xb0
[  618.038702]  ? rcu_read_lock_sched_held+0x14f/0x180
[  618.043723]  __do_softirq+0x308/0xb7e
[  618.047543]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  618.052302]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  618.057405]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  618.062853]  ? trace_hardirqs_on+0x310/0x310
[  618.067265]  ? schedule+0x108/0x460
[  618.070903]  ? trace_hardirqs_off+0xb8/0x310
[  618.075317]  ? smpboot_thread_fn+0x68b/0xa00
[  618.079727]  ? trace_hardirqs_on+0x310/0x310
[  618.084158]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  618.089694]  ? check_preemption_disabled+0x48/0x280
[  618.094711]  ? takeover_tasklets+0xa90/0xa90
[  618.099132]  run_ksoftirqd+0x5e/0x100
[  618.102960]  smpboot_thread_fn+0x68b/0xa00
[  618.107208]  ? sort_range+0x30/0x30
[  618.110844]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  618.115975]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  618.121524]  ? __kthread_parkme+0xfb/0x1a0
[  618.125801]  ? sort_range+0x30/0x30
[  618.129438]  kthread+0x35a/0x440
[  618.132805]  ? kthread_stop+0x900/0x900
[  618.136785]  ret_from_fork+0x3a/0x50
[  618.140516] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  618.140602] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  618.147533] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  618.147542] Call Trace:
[  618.154110] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  618.163361]  <IRQ>
[  618.165979] ksoftirqd/0 cpuset=/ mems_allowed=0
[  618.176324]  dump_stack+0x244/0x39d
[  618.186714]  ? dump_stack_print_info.cold.1+0x20/0x20
[  618.191940]  warn_alloc.cold.116+0xb7/0x1bd
[  618.196270]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  618.201113]  ? lock_downgrade+0x900/0x900
[  618.205291]  ? trace_hardirqs_off+0xb8/0x310
[  618.209707]  ? trace_hardirqs_off+0xb8/0x310
[  618.214133]  __alloc_pages_slowpath+0x2651/0x2de0
[  618.219023]  ? warn_alloc+0x120/0x120
[  618.222831]  ? print_usage_bug+0xc0/0xc0
[  618.226896]  ? warn_alloc+0x120/0x120
[  618.230704]  ? warn_alloc+0x120/0x120
[  618.234516]  ? print_usage_bug+0xc0/0xc0
[  618.238583]  ? print_usage_bug+0xc0/0xc0
[  618.242647]  ? __lock_acquire+0x62f/0x4c20
[  618.246910]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  618.252456]  ? should_fail+0x22d/0xd01
[  618.256354]  ? __lock_acquire+0x62f/0x4c20
[  618.260604]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  618.265709]  ? __lock_acquire+0x62f/0x4c20
[  618.269972]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  618.275074]  ? __lock_acquire+0x62f/0x4c20
[  618.279315]  ? should_fail+0x22d/0xd01
[  618.283260]  ? mark_held_locks+0x130/0x130
[  618.287508]  ? mark_held_locks+0x130/0x130
[  618.291747]  ? try_to_wake_up+0x11c/0x1490
[  618.295986]  ? zap_class+0x640/0x640
[  618.299701]  ? print_usage_bug+0xc0/0xc0
[  618.303776]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  618.309317]  ? check_preemption_disabled+0x48/0x280
[  618.314341]  ? __lock_is_held+0xb5/0x140
[  618.318408]  __alloc_pages_nodemask+0xad8/0xea0
[  618.323075]  ? zap_class+0x640/0x640
[  618.326795]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  618.331838]  ? find_held_lock+0x36/0x1c0
[  618.335928]  ? ____cache_alloc_node+0x1c7/0x1e0
[  618.340598]  ? lock_downgrade+0x900/0x900
[  618.344761]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  618.350321]  cache_grow_begin+0xa5/0x8c0
[  618.354379]  ? do_raw_spin_unlock+0xa7/0x330
[  618.358796]  fallback_alloc+0x204/0x2e0
[  618.362775]  ____cache_alloc_node+0x1c7/0x1e0
[  618.367282]  kmem_cache_alloc_node+0xe3/0x730
[  618.371794]  ? ipv6_get_ifaddr+0x42e/0x620
[  618.376054]  __alloc_skb+0x119/0x770
[  618.379786]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  618.385066]  ? netdev_alloc_frag+0x1f0/0x1f0
[  618.389506]  ? lock_downgrade+0x900/0x900
[  618.393665]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  618.399200]  ? refcount_sub_and_test_checked+0x203/0x310
[  618.404655]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  618.410130]  ? addrconf_rs_timer+0x690/0x690
[  618.414550]  ndisc_alloc_skb+0x144/0x340
[  618.418633]  ndisc_send_rs+0x331/0x6e0
[  618.422524]  addrconf_rs_timer+0x314/0x690
[  618.426791]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  618.431039]  call_timer_fn+0x272/0x920
[  618.434928]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  618.439178]  ? process_timeout+0x40/0x40
[  618.443250]  ? mark_held_locks+0xc7/0x130
[  618.447413]  ? _raw_spin_unlock_irq+0x27/0x80
[  618.451925]  ? _raw_spin_unlock_irq+0x27/0x80
[  618.456420]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  618.460655]  ? lockdep_hardirqs_on+0x296/0x5b0
[  618.465242]  ? trace_hardirqs_on+0xbd/0x310
[  618.469569]  ? kasan_check_read+0x11/0x20
[  618.473715]  ? __run_timers+0x7da/0xc70
[  618.477713]  ? trace_hardirqs_off_caller+0x310/0x310
[  618.482844]  ? prandom_seed_full_state+0x3b0/0x3b0
[  618.487795]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  618.492045]  __run_timers+0x7e5/0xc70
[  618.495859]  ? timer_fixup_init+0x70/0x70
[  618.500008]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  618.505022]  ? zap_class+0x640/0x640
[  618.508750]  ? print_usage_bug+0xc0/0xc0
[  618.512816]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  618.518013]  ? find_held_lock+0x36/0x1c0
[  618.522077]  ? zap_class+0x640/0x640
[  618.525828]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  618.531397]  ? check_preemption_disabled+0x48/0x280
[  618.536427]  ? __lock_is_held+0xb5/0x140
[  618.540493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  618.546031]  ? check_preemption_disabled+0x48/0x280
[  618.551052]  run_timer_softirq+0x52/0xb0
[  618.555295]  ? rcu_read_lock_sched_held+0x14f/0x180
[  618.560329]  __do_softirq+0x308/0xb7e
[  618.564147]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  618.568653]  ? lock_downgrade+0x900/0x900
[  618.572801]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  618.577914]  ? pvclock_read_flags+0x160/0x160
[  618.582442]  ? lapic_next_event+0x5a/0x90
[  618.586615]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  618.592157]  ? kvm_clock_read+0x18/0x30
[  618.596130]  ? kvm_sched_clock_read+0x9/0x20
[  618.600552]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  618.606103]  ? check_preemption_disabled+0x48/0x280
[  618.611126]  irq_exit+0x17f/0x1c0
[  618.614578]  smp_apic_timer_interrupt+0x1cb/0x760
[  618.619445]  ? smp_reschedule_interrupt+0x109/0x650
[  618.624459]  ? smp_call_function_single_interrupt+0x650/0x650
[  618.630345]  ? interrupt_entry+0xb5/0xc0
[  618.634404]  ? trace_hardirqs_off_caller+0xbb/0x310
[  618.639418]  ? trace_hardirqs_off_caller+0xbb/0x310
[  618.644435]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  618.649288]  ? trace_hardirqs_on_caller+0x310/0x310
[  618.654323]  ? trace_hardirqs_on_caller+0x310/0x310
[  618.659334]  ? task_prio+0x50/0x50
[  618.662875]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  618.668411]  ? check_preemption_disabled+0x48/0x280
[  618.673436]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  618.678290]  apic_timer_interrupt+0xf/0x20
[  618.682516]  </IRQ>
[  618.684762] RIP: 0010:dump_stack+0x358/0x39d
[  618.689685] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  618.708579] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  618.716279] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  618.723548] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  618.730812] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  618.738077] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  618.745345] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  618.752629]  ? dump_stack+0x34f/0x39d
[  618.756454]  ? dump_stack_print_info.cold.1+0x20/0x20
[  618.761651]  ? mark_held_locks+0x130/0x130
[  618.765905]  ? mark_held_locks+0x130/0x130
[  618.770160]  dump_header+0x27b/0xf72
[  618.773886]  ? pagefault_out_of_memory+0x197/0x197
[  618.778823]  ? __lock_acquire+0x62f/0x4c20
[  618.783060]  ? percpu_ref_get_many+0x240/0x240
[  618.787646]  ? print_usage_bug+0xc0/0xc0
[  618.791715]  ? zap_class+0x640/0x640
[  618.795439]  ? print_usage_bug+0xc0/0xc0
[  618.799496]  ? print_usage_bug+0xc0/0xc0
[  618.803558]  ? zap_class+0x640/0x640
[  618.807293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  618.812832]  ? find_held_lock+0x36/0x1c0
[  618.816902]  ? mark_held_locks+0xc7/0x130
[  618.821050]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  618.826155]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  618.831259]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  618.835843]  ? trace_hardirqs_on+0xbd/0x310
[  618.840158]  ? kasan_check_read+0x11/0x20
[  618.844301]  ? ___ratelimit+0x3b4/0x672
[  618.848282]  ? trace_hardirqs_off_caller+0x310/0x310
[  618.853382]  ? trace_hardirqs_on+0x310/0x310
[  618.857787]  ? lock_downgrade+0x900/0x900
[  618.861952]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  618.867053]  ? ___ratelimit+0x3b9/0x672
[  618.871028]  ? idr_get_free+0xf70/0xf70
[  618.875003]  ? find_held_lock+0x36/0x1c0
[  618.879073]  oom_kill_process.cold.27+0x10/0x903
[  618.883830]  ? zap_class+0x640/0x640
[  618.887542]  ? check_preemption_disabled+0x48/0x280
[  618.892561]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  618.897489]  ? kasan_check_read+0x11/0x20
[  618.901639]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  618.906920]  ? oom_evaluate_task+0x540/0x540
[  618.911334]  ? find_held_lock+0x36/0x1c0
[  618.915407]  ? out_of_memory+0x974/0x1430
[  618.919557]  ? lock_downgrade+0x900/0x900
[  618.923707]  ? check_preemption_disabled+0x48/0x280
[  618.928744]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  618.933677]  ? kasan_check_read+0x11/0x20
[  618.937826]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  618.943100]  ? rcu_softirq_qs+0x20/0x20
[  618.947081]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  618.952618]  ? oom_evaluate_task+0x302/0x540
[  618.957034]  out_of_memory+0xa84/0x1430
[  618.961018]  ? oom_killer_disable+0x3a0/0x3a0
[  618.965513]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  618.970444]  ? __ww_mutex_check_waiters+0x160/0x160
[  618.975472]  __alloc_pages_slowpath+0x232c/0x2de0
[  618.980346]  ? warn_alloc+0x120/0x120
[  618.984145]  ? mark_held_locks+0x130/0x130
[  618.988383]  ? find_get_entry+0xaae/0x1120
[  618.992627]  ? filemap_map_pages+0x1a20/0x1a20
[  618.997236]  ? zap_class+0x640/0x640
[  619.000985]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  619.006564]  ? check_preemption_disabled+0x48/0x280
[  619.011592]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  619.017126]  ? should_fail+0x22d/0xd01
[  619.021018]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  619.026122]  ? zap_class+0x640/0x640
[  619.029862]  ? __lock_is_held+0xb5/0x140
[  619.033930]  ? mark_held_locks+0x130/0x130
[  619.038164]  ? lock_release+0xa00/0xa00
[  619.042138]  ? perf_trace_sched_process_exec+0x860/0x860
[  619.047584]  ? xa_load+0x2ba/0x460
[  619.051139]  ? lock_downgrade+0x900/0x900
[  619.055295]  ? __might_sleep+0x95/0x190
[  619.059275]  __alloc_pages_nodemask+0xad8/0xea0
[  619.063955]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  619.068973]  ? __page_cache_alloc+0x191/0x5c0
[  619.073462]  ? xa_load+0x2e1/0x460
[  619.077004]  ? xa_clear_mark+0x40/0x40
[  619.080891]  ? zap_class+0x640/0x640
[  619.084614]  ? zap_class+0x640/0x640
[  619.088330]  ? zap_class+0x640/0x640
[  619.092043]  ? __do_page_cache_readahead+0x663/0x810
[  619.097149]  ? find_held_lock+0x36/0x1c0
[  619.101219]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  619.106776]  alloc_pages_current+0x173/0x350
[  619.111206]  __page_cache_alloc+0x38c/0x5c0
[  619.115542]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  619.120483]  ? kasan_check_read+0x11/0x20
[  619.124626]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  619.129921]  ? generic_perform_write+0x6a0/0x6a0
[  619.134697]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  619.140234]  ? check_preemption_disabled+0x48/0x280
[  619.145265]  filemap_fault+0x1595/0x25f0
[  619.149336]  ? __lock_page_or_retry+0xa00/0xa00
[  619.154006]  ? mark_held_locks+0x130/0x130
[  619.158249]  ? filemap_map_pages+0xd6b/0x1a20
[  619.162755]  ? lock_downgrade+0x900/0x900
[  619.166907]  ? check_preemption_disabled+0x48/0x280
[  619.171927]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  619.176853]  ? kasan_check_read+0x11/0x20
[  619.180997]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  619.186274]  ? rcu_softirq_qs+0x20/0x20
[  619.190294]  ? filemap_map_pages+0xd92/0x1a20
[  619.194810]  ? print_usage_bug+0xc0/0xc0
[  619.198878]  ? find_get_entries_tag+0x1400/0x1400
[  619.203717]  ? __kasan_slab_free+0x102/0x150
[  619.208130]  ? kasan_slab_free+0xe/0x10
[  619.212098]  ? kmem_cache_free+0x83/0x290
[  619.216242]  ? __sigqueue_free.part.29+0x74/0x90
[  619.221019]  ? lock_acquire+0x1ed/0x520
[  619.224999]  ? ext4_filemap_fault+0x7a/0xad
[  619.229324]  ? lock_release+0xa00/0xa00
[  619.233298]  ? perf_trace_sched_process_exec+0x860/0x860
[  619.238755]  ? print_usage_bug+0xc0/0xc0
[  619.242848]  ? print_usage_bug+0xc0/0xc0
[  619.246925]  ? down_read+0x8d/0x120
[  619.250551]  ? ext4_filemap_fault+0x7a/0xad
[  619.254868]  ? __down_interruptible+0x700/0x700
[  619.259560]  ext4_filemap_fault+0x82/0xad
[  619.263711]  __do_fault+0x100/0x6b0
[  619.267378]  ? pmd_devmap_trans_unstable+0x220/0x220
[  619.272483]  ? mark_held_locks+0x130/0x130
[  619.276718]  ? mark_held_locks+0x130/0x130
[  619.280960]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  619.286498]  ? rcu_pm_notify+0xc0/0xc0
[  619.290421]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  619.295959]  __handle_mm_fault+0x3ea0/0x5be0
[  619.300378]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  619.305214]  ? _raw_spin_unlock_irq+0x27/0x80
[  619.309710]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  619.314304]  ? trace_hardirqs_on+0xbd/0x310
[  619.318641]  ? kasan_check_read+0x11/0x20
[  619.322788]  ? __set_current_blocked+0xdf/0x120
[  619.327460]  ? trace_hardirqs_off_caller+0x310/0x310
[  619.332574]  ? zap_class+0x640/0x640
[  619.336283]  ? zap_class+0x640/0x640
[  619.340004]  ? find_held_lock+0x36/0x1c0
[  619.344088]  ? handle_mm_fault+0x42a/0xc70
[  619.348341]  ? lock_downgrade+0x900/0x900
[  619.352487]  ? check_preemption_disabled+0x48/0x280
[  619.357504]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  619.362436]  ? kasan_check_read+0x11/0x20
[  619.366584]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  619.371864]  ? rcu_softirq_qs+0x20/0x20
[  619.375837]  ? trace_hardirqs_off_caller+0x310/0x310
[  619.380957]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  619.386491]  ? check_preemption_disabled+0x48/0x280
[  619.391545]  handle_mm_fault+0x54f/0xc70
[  619.395611]  ? __handle_mm_fault+0x5be0/0x5be0
[  619.400211]  ? find_vma+0x34/0x190
[  619.403768]  __do_page_fault+0x5e8/0xe60
[  619.407831]  ? exit_to_usermode_loop+0x1f4/0x380
[  619.412609]  do_page_fault+0xf2/0x7e0
[  619.416408]  ? vmalloc_sync_all+0x30/0x30
[  619.420555]  ? error_entry+0x70/0xd0
[  619.424274]  ? trace_hardirqs_off_caller+0xbb/0x310
[  619.429289]  ? trace_hardirqs_on_caller+0xc0/0x310
[  619.434217]  ? syscall_return_slowpath+0x5e0/0x5e0
[  619.439144]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  619.443987]  ? trace_hardirqs_on_caller+0x310/0x310
[  619.449000]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  619.454453]  ? prepare_exit_to_usermode+0x291/0x3b0
[  619.459469]  ? page_fault+0x8/0x30
[  619.463029]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  619.467902]  ? page_fault+0x8/0x30
[  619.471441]  page_fault+0x1e/0x30
[  619.474904] RIP: 0033:0x45db60
[  619.478108] Code: Bad RIP value.
[  619.481464] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  619.486839] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  619.494107] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  619.501373] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  619.508654] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  619.515918] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  619.523214] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  619.523219] warn_alloc_show_mem: 1 callbacks suppressed
[  619.523226] Mem-Info:
[  619.530058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  619.535442] active_anon:42936 inactive_anon:306 isolated_anon:0
[  619.535442]  active_file:13 inactive_file:13 isolated_file:0
[  619.535442]  unevictable:0 dirty:0 writeback:0 unstable:0
[  619.535442]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  619.535442]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  619.535442]  free:13785 free_pcp:492 free_cma:0
[  619.537812] Call Trace:
[  619.547199] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  619.579959]  dump_stack+0x244/0x39d
[  619.582515] 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
[  619.610095]  ? dump_stack_print_info.cold.1+0x20/0x20
[  619.613695] lowmem_reserve[]: 0 2818 6321 6321
[  619.639810]  warn_alloc.cold.116+0xb7/0x1bd
[  619.644971] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  619.649543]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  619.653840] lowmem_reserve[]: 0 0 3503 3503
[  619.681067]  ? lock_downgrade+0x900/0x900
[  619.685881] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  619.690201]  ? trace_hardirqs_off+0xb8/0x310
[  619.694315] lowmem_reserve[]: 0 0 0 0
[  619.723488]  ? trace_hardirqs_off+0xb8/0x310
[  619.727865] 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
[  619.731667]  __alloc_pages_slowpath+0x2651/0x2de0
[  619.736044] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  619.749597]  ? warn_alloc+0x120/0x120
[  619.754374] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  619.769535]  ? print_usage_bug+0xc0/0xc0
[  619.773331] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  619.788487]  ? warn_alloc+0x120/0x120
[  619.792526] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  619.801351]  ? warn_alloc+0x120/0x120
[  619.805127] 380 total pagecache pages
[  619.813704]  ? print_usage_bug+0xc0/0xc0
[  619.817502] 0 pages in swap cache
[  619.821286]  ? print_usage_bug+0xc0/0xc0
[  619.825322] Swap cache stats: add 0, delete 0, find 0/0
[  619.828768]  ? __lock_acquire+0x62f/0x4c20
[  619.832802] Free swap  = 0kB
[  619.838156]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  619.842363] Total swap = 0kB
[  619.845374]  ? should_fail+0x22d/0xd01
[  619.850900] 1965979 pages RAM
[  619.853909]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  619.857767] 0 pages HighMem/MovableOnly
[  619.860862]  ? __lock_acquire+0x62f/0x4c20
[  619.865938] 342854 pages reserved
[  619.869915]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  619.874126] 0 pages cma reserved
[  619.877568]  ? __lock_acquire+0x62f/0x4c20
[  619.882728] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  619.885993]  ? should_fail+0x22d/0xd01
[  619.886009]  ? find_held_lock+0x36/0x1c0
[  619.890344] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  619.896768]  ? mark_held_locks+0x130/0x130
[  619.900619] syz-fuzzer cpuset=/ mems_allowed=0
[  619.904688]  ? mark_held_locks+0x130/0x130
[  619.927887]  ? zap_class+0x640/0x640
[  619.931609]  ? mark_held_locks+0xc7/0x130
[  619.935781]  ? do_raw_spin_unlock+0xa7/0x330
[  619.940191]  ? zap_class+0x640/0x640
[  619.943901]  ? print_usage_bug+0xc0/0xc0
[  619.947968]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  619.953539]  ? check_preemption_disabled+0x48/0x280
[  619.958575]  ? __lock_is_held+0xb5/0x140
[  619.962642]  __alloc_pages_nodemask+0xad8/0xea0
[  619.967324]  ? zap_class+0x640/0x640
[  619.971044]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  619.976085]  ? find_held_lock+0x36/0x1c0
[  619.980152]  ? ____cache_alloc_node+0x1c7/0x1e0
[  619.984822]  ? lock_downgrade+0x900/0x900
[  619.988996]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  619.994536]  cache_grow_begin+0xa5/0x8c0
[  619.998593]  ? do_raw_spin_unlock+0xa7/0x330
[  620.003009]  fallback_alloc+0x204/0x2e0
[  620.006993]  ____cache_alloc_node+0x1c7/0x1e0
[  620.011490]  kmem_cache_alloc_node+0xe3/0x730
[  620.016003]  ? ipv6_get_ifaddr+0x42e/0x620
[  620.020251]  __alloc_skb+0x119/0x770
[  620.023978]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  620.029272]  ? netdev_alloc_frag+0x1f0/0x1f0
[  620.033676]  ? lock_downgrade+0x900/0x900
[  620.037834]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  620.043402]  ? refcount_sub_and_test_checked+0x203/0x310
[  620.048854]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  620.054304]  ? addrconf_rs_timer+0x690/0x690
[  620.058722]  ndisc_alloc_skb+0x144/0x340
[  620.062800]  ndisc_send_rs+0x331/0x6e0
[  620.066689]  addrconf_rs_timer+0x314/0x690
[  620.070928]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  620.075171]  call_timer_fn+0x272/0x920
[  620.079056]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  620.083302]  ? process_timeout+0x40/0x40
[  620.087366]  ? __run_timers+0x7da/0xc70
[  620.091338]  ? _raw_spin_unlock_irq+0x27/0x80
[  620.095833]  ? _raw_spin_unlock_irq+0x27/0x80
[  620.100324]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  620.104556]  ? lockdep_hardirqs_on+0x296/0x5b0
[  620.109135]  ? trace_hardirqs_on+0xbd/0x310
[  620.113451]  ? kasan_check_read+0x11/0x20
[  620.117593]  ? __run_timers+0x7da/0xc70
[  620.121566]  ? trace_hardirqs_off_caller+0x310/0x310
[  620.126668]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  620.130905]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  620.135148]  __run_timers+0x7e5/0xc70
[  620.138969]  ? timer_fixup_init+0x70/0x70
[  620.143128]  ? _raw_spin_unlock_irq+0x27/0x80
[  620.147634]  ? _raw_spin_unlock_irq+0x27/0x80
[  620.152132]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  620.156712]  ? trace_hardirqs_on+0xbd/0x310
[  620.161041]  ? kasan_check_read+0x11/0x20
[  620.165205]  ? finish_task_switch+0x1f4/0x910
[  620.169711]  ? trace_hardirqs_off_caller+0x310/0x310
[  620.174822]  ? compat_start_thread+0x80/0x80
[  620.179254]  ? pvclock_read_flags+0x160/0x160
[  620.183749]  ? __switch_to_asm+0x34/0x70
[  620.187837]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  620.193400]  ? check_preemption_disabled+0x48/0x280
[  620.198434]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  620.203971]  ? rcu_pm_notify+0xc0/0xc0
[  620.207859]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  620.213398]  ? check_preemption_disabled+0x48/0x280
[  620.218420]  run_timer_softirq+0x52/0xb0
[  620.222477]  ? rcu_read_lock_sched_held+0x14f/0x180
[  620.227491]  __do_softirq+0x308/0xb7e
[  620.231294]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  620.236058]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  620.241174]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  620.246635]  ? trace_hardirqs_on+0x310/0x310
[  620.251051]  ? schedule+0x108/0x460
[  620.254685]  ? trace_hardirqs_off+0xb8/0x310
[  620.259092]  ? smpboot_thread_fn+0x68b/0xa00
[  620.263497]  ? trace_hardirqs_on+0x310/0x310
[  620.267905]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  620.273444]  ? check_preemption_disabled+0x48/0x280
[  620.278460]  ? takeover_tasklets+0xa90/0xa90
[  620.282883]  run_ksoftirqd+0x5e/0x100
[  620.286686]  smpboot_thread_fn+0x68b/0xa00
[  620.290948]  ? sort_range+0x30/0x30
[  620.294578]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  620.299699]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  620.305260]  ? __kthread_parkme+0xfb/0x1a0
[  620.309494]  ? sort_range+0x30/0x30
[  620.313123]  kthread+0x35a/0x440
[  620.316490]  ? kthread_stop+0x900/0x900
[  620.320470]  ret_from_fork+0x3a/0x50
[  620.324199] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  620.324302] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  620.331205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  620.331210] Call Trace:
[  620.331216]  <IRQ>
[  620.331234]  dump_stack+0x244/0x39d
[  620.331272]  ? dump_stack_print_info.cold.1+0x20/0x20
[  620.337823] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  620.347127]  warn_alloc.cold.116+0xb7/0x1bd
[  620.349677] ksoftirqd/0 cpuset=/ mems_allowed=0
[  620.351834]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  620.384672]  ? lock_downgrade+0x900/0x900
[  620.388827]  ? trace_hardirqs_off+0xb8/0x310
[  620.393239]  ? trace_hardirqs_off+0xb8/0x310
[  620.397658]  __alloc_pages_slowpath+0x2651/0x2de0
[  620.402532]  ? warn_alloc+0x120/0x120
[  620.406338]  ? print_usage_bug+0xc0/0xc0
[  620.410398]  ? warn_alloc+0x120/0x120
[  620.414201]  ? warn_alloc+0x120/0x120
[  620.418001]  ? print_usage_bug+0xc0/0xc0
[  620.422063]  ? kvm_clock_read+0x18/0x30
[  620.426036]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  620.431053]  ? print_usage_bug+0xc0/0xc0
[  620.435115]  ? __lock_acquire+0x62f/0x4c20
[  620.439357]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  620.444907]  ? should_fail+0x22d/0xd01
[  620.448794]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  620.454075]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  620.459176]  ? __lock_acquire+0x62f/0x4c20
[  620.463412]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  620.468512]  ? __lock_acquire+0x62f/0x4c20
[  620.472756]  ? should_fail+0x22d/0xd01
[  620.476644]  ? rcu_irq_exit+0x1a2/0x390
[  620.480625]  ? mark_held_locks+0x130/0x130
[  620.484866]  ? mark_held_locks+0x130/0x130
[  620.489109]  ? mark_held_locks+0xc7/0x130
[  620.493277]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  620.498295]  ? zap_class+0x640/0x640
[  620.502035]  ? print_usage_bug+0xc0/0xc0
[  620.506098]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  620.511636]  ? check_preemption_disabled+0x48/0x280
[  620.516666]  ? __lock_is_held+0xb5/0x140
[  620.520739]  __alloc_pages_nodemask+0xad8/0xea0
[  620.525406]  ? zap_class+0x640/0x640
[  620.529123]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  620.534149]  ? find_held_lock+0x36/0x1c0
[  620.538218]  ? ____cache_alloc_node+0x1c7/0x1e0
[  620.542893]  ? lock_downgrade+0x900/0x900
[  620.547048]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  620.552590]  cache_grow_begin+0xa5/0x8c0
[  620.556653]  ? do_raw_spin_unlock+0xa7/0x330
[  620.561071]  fallback_alloc+0x204/0x2e0
[  620.565056]  ____cache_alloc_node+0x1c7/0x1e0
[  620.569556]  kmem_cache_alloc_node+0xe3/0x730
[  620.574054]  ? ipv6_get_ifaddr+0x42e/0x620
[  620.578301]  __alloc_skb+0x119/0x770
[  620.582013]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  620.587298]  ? netdev_alloc_frag+0x1f0/0x1f0
[  620.591710]  ? lock_downgrade+0x900/0x900
[  620.595873]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  620.601413]  ? refcount_sub_and_test_checked+0x203/0x310
[  620.606868]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  620.612349]  ? addrconf_rs_timer+0x690/0x690
[  620.616807]  ndisc_alloc_skb+0x144/0x340
[  620.620875]  ndisc_send_rs+0x331/0x6e0
[  620.624777]  addrconf_rs_timer+0x314/0x690
[  620.629022]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  620.633273]  call_timer_fn+0x272/0x920
[  620.637160]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  620.641424]  ? process_timeout+0x40/0x40
[  620.645491]  ? mark_held_locks+0xc7/0x130
[  620.649644]  ? _raw_spin_unlock_irq+0x27/0x80
[  620.654149]  ? _raw_spin_unlock_irq+0x27/0x80
[  620.658669]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  620.662916]  ? lockdep_hardirqs_on+0x296/0x5b0
[  620.667497]  ? trace_hardirqs_on+0xbd/0x310
[  620.671834]  ? kasan_check_read+0x11/0x20
[  620.675983]  ? __run_timers+0x7da/0xc70
[  620.679960]  ? trace_hardirqs_off_caller+0x310/0x310
[  620.685071]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  620.689801]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  620.694035]  __run_timers+0x7e5/0xc70
[  620.697846]  ? timer_fixup_init+0x70/0x70
[  620.701995]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  620.707009]  ? zap_class+0x640/0x640
[  620.710752]  ? print_usage_bug+0xc0/0xc0
[  620.714815]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  620.720011]  ? find_held_lock+0x36/0x1c0
[  620.724105]  ? zap_class+0x640/0x640
[  620.727823]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  620.733366]  ? check_preemption_disabled+0x48/0x280
[  620.738393]  ? __lock_is_held+0xb5/0x140
[  620.742454]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  620.747993]  ? check_preemption_disabled+0x48/0x280
[  620.753013]  run_timer_softirq+0x52/0xb0
[  620.757076]  ? rcu_read_lock_sched_held+0x14f/0x180
[  620.762092]  __do_softirq+0x308/0xb7e
[  620.765927]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  620.770440]  ? lock_downgrade+0x900/0x900
[  620.774609]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  620.779741]  ? pvclock_read_flags+0x160/0x160
[  620.784241]  ? lapic_next_event+0x5a/0x90
[  620.788421]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  620.793978]  ? kvm_clock_read+0x18/0x30
[  620.797979]  ? kvm_sched_clock_read+0x9/0x20
[  620.802407]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  620.807956]  ? check_preemption_disabled+0x48/0x280
[  620.813008]  irq_exit+0x17f/0x1c0
[  620.816466]  smp_apic_timer_interrupt+0x1cb/0x760
[  620.821305]  ? smp_reschedule_interrupt+0x109/0x650
[  620.826319]  ? smp_call_function_single_interrupt+0x650/0x650
[  620.832202]  ? interrupt_entry+0xb5/0xc0
[  620.836298]  ? trace_hardirqs_off_caller+0xbb/0x310
[  620.841331]  ? trace_hardirqs_off_caller+0xbb/0x310
[  620.846346]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  620.851200]  ? trace_hardirqs_on_caller+0x310/0x310
[  620.856230]  ? trace_hardirqs_on_caller+0x310/0x310
[  620.861246]  ? task_prio+0x50/0x50
[  620.864794]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  620.870330]  ? check_preemption_disabled+0x48/0x280
[  620.875353]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  620.880203]  apic_timer_interrupt+0xf/0x20
[  620.884426]  </IRQ>
[  620.886666] RIP: 0010:dump_stack+0x358/0x39d
[  620.891072] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  620.909967] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  620.917670] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  620.924938] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  620.932216] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  620.939495] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  620.946774] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  620.954057]  ? dump_stack+0x34f/0x39d
[  620.957883]  ? dump_stack_print_info.cold.1+0x20/0x20
[  620.963078]  ? mark_held_locks+0x130/0x130
[  620.967310]  ? mark_held_locks+0x130/0x130
[  620.971551]  dump_header+0x27b/0xf72
[  620.975293]  ? pagefault_out_of_memory+0x197/0x197
[  620.980231]  ? __lock_acquire+0x62f/0x4c20
[  620.984485]  ? percpu_ref_get_many+0x240/0x240
[  620.989070]  ? print_usage_bug+0xc0/0xc0
[  620.993136]  ? zap_class+0x640/0x640
[  620.996896]  ? print_usage_bug+0xc0/0xc0
[  621.000958]  ? print_usage_bug+0xc0/0xc0
[  621.005020]  ? zap_class+0x640/0x640
[  621.008746]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  621.014305]  ? find_held_lock+0x36/0x1c0
[  621.018373]  ? mark_held_locks+0xc7/0x130
[  621.022518]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  621.027618]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  621.032726]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  621.037317]  ? trace_hardirqs_on+0xbd/0x310
[  621.041636]  ? kasan_check_read+0x11/0x20
[  621.045787]  ? ___ratelimit+0x3b4/0x672
[  621.049801]  ? trace_hardirqs_off_caller+0x310/0x310
[  621.054906]  ? trace_hardirqs_on+0x310/0x310
[  621.059312]  ? lock_downgrade+0x900/0x900
[  621.063467]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  621.068571]  ? ___ratelimit+0x3b9/0x672
[  621.072548]  ? idr_get_free+0xf70/0xf70
[  621.076524]  ? find_held_lock+0x36/0x1c0
[  621.080592]  oom_kill_process.cold.27+0x10/0x903
[  621.085345]  ? zap_class+0x640/0x640
[  621.089056]  ? check_preemption_disabled+0x48/0x280
[  621.094087]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  621.099042]  ? kasan_check_read+0x11/0x20
[  621.103187]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  621.108463]  ? oom_evaluate_task+0x540/0x540
[  621.112876]  ? find_held_lock+0x36/0x1c0
[  621.116943]  ? out_of_memory+0x974/0x1430
[  621.121093]  ? lock_downgrade+0x900/0x900
[  621.125240]  ? check_preemption_disabled+0x48/0x280
[  621.130272]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  621.135197]  ? kasan_check_read+0x11/0x20
[  621.139376]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  621.144653]  ? rcu_softirq_qs+0x20/0x20
[  621.148629]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  621.154163]  ? oom_evaluate_task+0x302/0x540
[  621.158570]  out_of_memory+0xa84/0x1430
[  621.162565]  ? oom_killer_disable+0x3a0/0x3a0
[  621.167061]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  621.171998]  ? __ww_mutex_check_waiters+0x160/0x160
[  621.177030]  __alloc_pages_slowpath+0x232c/0x2de0
[  621.181931]  ? warn_alloc+0x120/0x120
[  621.185741]  ? mark_held_locks+0x130/0x130
[  621.189977]  ? find_get_entry+0xaae/0x1120
[  621.194220]  ? filemap_map_pages+0x1a20/0x1a20
[  621.198810]  ? zap_class+0x640/0x640
[  621.202531]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  621.208069]  ? check_preemption_disabled+0x48/0x280
[  621.213086]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  621.218621]  ? should_fail+0x22d/0xd01
[  621.222509]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  621.227609]  ? zap_class+0x640/0x640
[  621.231372]  ? __lock_is_held+0xb5/0x140
[  621.235437]  ? mark_held_locks+0x130/0x130
[  621.239674]  ? lock_release+0xa00/0xa00
[  621.243649]  ? perf_trace_sched_process_exec+0x860/0x860
[  621.249100]  ? xa_load+0x2ba/0x460
[  621.252660]  ? lock_downgrade+0x900/0x900
[  621.256810]  ? __might_sleep+0x95/0x190
[  621.260790]  __alloc_pages_nodemask+0xad8/0xea0
[  621.265466]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  621.270512]  ? __page_cache_alloc+0x191/0x5c0
[  621.275007]  ? xa_load+0x2e1/0x460
[  621.278560]  ? xa_clear_mark+0x40/0x40
[  621.282450]  ? zap_class+0x640/0x640
[  621.286187]  ? zap_class+0x640/0x640
[  621.289900]  ? zap_class+0x640/0x640
[  621.293646]  ? __do_page_cache_readahead+0x663/0x810
[  621.298760]  ? find_held_lock+0x36/0x1c0
[  621.302830]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  621.308371]  alloc_pages_current+0x173/0x350
[  621.312785]  __page_cache_alloc+0x38c/0x5c0
[  621.317108]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  621.322051]  ? kasan_check_read+0x11/0x20
[  621.326213]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  621.331493]  ? generic_perform_write+0x6a0/0x6a0
[  621.336248]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  621.341792]  ? check_preemption_disabled+0x48/0x280
[  621.346821]  filemap_fault+0x1595/0x25f0
[  621.350897]  ? __lock_page_or_retry+0xa00/0xa00
[  621.355594]  ? mark_held_locks+0x130/0x130
[  621.359835]  ? filemap_map_pages+0xd6b/0x1a20
[  621.364351]  ? lock_downgrade+0x900/0x900
[  621.368497]  ? check_preemption_disabled+0x48/0x280
[  621.373533]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  621.378459]  ? kasan_check_read+0x11/0x20
[  621.382638]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  621.387927]  ? rcu_softirq_qs+0x20/0x20
[  621.391929]  ? filemap_map_pages+0xd92/0x1a20
[  621.396430]  ? print_usage_bug+0xc0/0xc0
[  621.400510]  ? find_get_entries_tag+0x1400/0x1400
[  621.405347]  ? __kasan_slab_free+0x102/0x150
[  621.409759]  ? kasan_slab_free+0xe/0x10
[  621.413741]  ? kmem_cache_free+0x83/0x290
[  621.417895]  ? __sigqueue_free.part.29+0x74/0x90
[  621.422670]  ? lock_acquire+0x1ed/0x520
[  621.426657]  ? ext4_filemap_fault+0x7a/0xad
[  621.430987]  ? lock_release+0xa00/0xa00
[  621.434956]  ? perf_trace_sched_process_exec+0x860/0x860
[  621.440408]  ? print_usage_bug+0xc0/0xc0
[  621.444473]  ? print_usage_bug+0xc0/0xc0
[  621.448541]  ? down_read+0x8d/0x120
[  621.452165]  ? ext4_filemap_fault+0x7a/0xad
[  621.456485]  ? __down_interruptible+0x700/0x700
[  621.461162]  ext4_filemap_fault+0x82/0xad
[  621.465314]  __do_fault+0x100/0x6b0
[  621.468959]  ? pmd_devmap_trans_unstable+0x220/0x220
[  621.474065]  ? mark_held_locks+0x130/0x130
[  621.478300]  ? mark_held_locks+0x130/0x130
[  621.482535]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  621.488077]  ? rcu_pm_notify+0xc0/0xc0
[  621.491972]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  621.497540]  __handle_mm_fault+0x3ea0/0x5be0
[  621.501956]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  621.506807]  ? _raw_spin_unlock_irq+0x27/0x80
[  621.511302]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  621.515916]  ? trace_hardirqs_on+0xbd/0x310
[  621.520236]  ? kasan_check_read+0x11/0x20
[  621.524383]  ? __set_current_blocked+0xdf/0x120
[  621.529050]  ? trace_hardirqs_off_caller+0x310/0x310
[  621.534163]  ? zap_class+0x640/0x640
[  621.537874]  ? zap_class+0x640/0x640
[  621.541593]  ? find_held_lock+0x36/0x1c0
[  621.545662]  ? handle_mm_fault+0x42a/0xc70
[  621.549911]  ? lock_downgrade+0x900/0x900
[  621.554058]  ? check_preemption_disabled+0x48/0x280
[  621.559095]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  621.564026]  ? kasan_check_read+0x11/0x20
[  621.568172]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  621.573470]  ? rcu_softirq_qs+0x20/0x20
[  621.577440]  ? trace_hardirqs_off_caller+0x310/0x310
[  621.582545]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  621.588082]  ? check_preemption_disabled+0x48/0x280
[  621.593102]  handle_mm_fault+0x54f/0xc70
[  621.597166]  ? __handle_mm_fault+0x5be0/0x5be0
[  621.601791]  ? find_vma+0x34/0x190
[  621.605350]  __do_page_fault+0x5e8/0xe60
[  621.609413]  ? exit_to_usermode_loop+0x1f4/0x380
[  621.614173]  do_page_fault+0xf2/0x7e0
[  621.617973]  ? vmalloc_sync_all+0x30/0x30
[  621.622124]  ? error_entry+0x70/0xd0
[  621.625837]  ? trace_hardirqs_off_caller+0xbb/0x310
[  621.630885]  ? trace_hardirqs_on_caller+0xc0/0x310
[  621.635812]  ? syscall_return_slowpath+0x5e0/0x5e0
[  621.640748]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  621.645588]  ? trace_hardirqs_on_caller+0x310/0x310
[  621.650600]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  621.656055]  ? prepare_exit_to_usermode+0x291/0x3b0
[  621.661069]  ? page_fault+0x8/0x30
[  621.664610]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  621.669456]  ? page_fault+0x8/0x30
[  621.672994]  page_fault+0x1e/0x30
[  621.676444] RIP: 0033:0x45db60
[  621.679646] Code: Bad RIP value.
[  621.683002] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  621.688361] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  621.695627] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  621.702905] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  621.710167] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  621.717430] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  621.724741] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  621.724746] warn_alloc_show_mem: 1 callbacks suppressed
[  621.724753] Mem-Info:
[  621.731591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  621.736955] active_anon:42936 inactive_anon:306 isolated_anon:0
[  621.736955]  active_file:13 inactive_file:13 isolated_file:0
[  621.736955]  unevictable:0 dirty:0 writeback:0 unstable:0
[  621.736955]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  621.736955]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  621.736955]  free:13785 free_pcp:492 free_cma:0
[  621.739327] Call Trace:
[  621.748709] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  621.781470]  dump_stack+0x244/0x39d
[  621.784027] 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
[  621.811620]  ? dump_stack_print_info.cold.1+0x20/0x20
[  621.815219] lowmem_reserve[]: 0 2818 6321 6321
[  621.841328]  warn_alloc.cold.116+0xb7/0x1bd
[  621.846485] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  621.851074]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  621.855364] lowmem_reserve[]: 0 0 3503 3503
[  621.882507]  ? lock_downgrade+0x900/0x900
[  621.887320] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  621.891650]  ? trace_hardirqs_off+0xb8/0x310
[  621.895776] lowmem_reserve[]: 0 0 0 0
[  621.924918]  ? trace_hardirqs_off+0xb8/0x310
[  621.929297] 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
[  621.933097]  __alloc_pages_slowpath+0x2651/0x2de0
[  621.937477] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  621.951040]  ? warn_alloc+0x120/0x120
[  621.955866] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  621.971030]  ? print_usage_bug+0xc0/0xc0
[  621.974809] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  621.989981]  ? warn_alloc+0x120/0x120
[  621.994020] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  622.002840]  ? warn_alloc+0x120/0x120
[  622.006613] 380 total pagecache pages
[  622.015194]  ? print_usage_bug+0xc0/0xc0
[  622.019009] 0 pages in swap cache
[  622.022815]  ? print_usage_bug+0xc0/0xc0
[  622.026864] Swap cache stats: add 0, delete 0, find 0/0
[  622.030307]  ? __lock_acquire+0x62f/0x4c20
[  622.034343] Free swap  = 0kB
[  622.039697]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  622.043902] Total swap = 0kB
[  622.046916]  ? should_fail+0x22d/0xd01
[  622.052422] 1965979 pages RAM
[  622.055434]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  622.059292] 0 pages HighMem/MovableOnly
[  622.062392]  ? __lock_acquire+0x62f/0x4c20
[  622.067469] 342854 pages reserved
[  622.071435]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  622.075643] 0 pages cma reserved
[  622.079084]  ? __lock_acquire+0x62f/0x4c20
[  622.084224] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  622.087518]  ? should_fail+0x22d/0xd01
[  622.087533]  ? find_held_lock+0x36/0x1c0
[  622.091848] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  622.098251]  ? mark_held_locks+0x130/0x130
[  622.102117] syz-fuzzer cpuset=/ mems_allowed=0
[  622.106171]  ? mark_held_locks+0x130/0x130
[  622.129355]  ? zap_class+0x640/0x640
[  622.133067]  ? zap_class+0x640/0x640
[  622.136786]  ? print_usage_bug+0xc0/0xc0
[  622.140845]  ? do_raw_spin_unlock+0xa7/0x330
[  622.145250]  ? zap_class+0x640/0x640
[  622.148963]  ? print_usage_bug+0xc0/0xc0
[  622.153025]  ? wq_watchdog_touch+0x9c/0xfe
[  622.157266]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  622.162803]  ? check_preemption_disabled+0x48/0x280
[  622.167828]  ? __lock_is_held+0xb5/0x140
[  622.171895]  __alloc_pages_nodemask+0xad8/0xea0
[  622.176562]  ? zap_class+0x640/0x640
[  622.180279]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  622.185305]  ? find_held_lock+0x36/0x1c0
[  622.189376]  ? ____cache_alloc_node+0x1c7/0x1e0
[  622.194043]  ? lock_downgrade+0x900/0x900
[  622.198197]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  622.203746]  cache_grow_begin+0xa5/0x8c0
[  622.207813]  ? do_raw_spin_unlock+0xa7/0x330
[  622.212227]  fallback_alloc+0x204/0x2e0
[  622.216203]  ____cache_alloc_node+0x1c7/0x1e0
[  622.220702]  kmem_cache_alloc_node+0xe3/0x730
[  622.225205]  ? ipv6_get_ifaddr+0x42e/0x620
[  622.229448]  __alloc_skb+0x119/0x770
[  622.233177]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  622.238460]  ? netdev_alloc_frag+0x1f0/0x1f0
[  622.242868]  ? lock_downgrade+0x900/0x900
[  622.247024]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  622.252560]  ? refcount_sub_and_test_checked+0x203/0x310
[  622.258014]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  622.263468]  ? addrconf_rs_timer+0x690/0x690
[  622.267889]  ndisc_alloc_skb+0x144/0x340
[  622.271965]  ndisc_send_rs+0x331/0x6e0
[  622.275856]  addrconf_rs_timer+0x314/0x690
[  622.280095]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  622.284341]  call_timer_fn+0x272/0x920
[  622.288225]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  622.292457]  ? process_timeout+0x40/0x40
[  622.296528]  ? __run_timers+0x7da/0xc70
[  622.300501]  ? _raw_spin_unlock_irq+0x27/0x80
[  622.305008]  ? _raw_spin_unlock_irq+0x27/0x80
[  622.309497]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  622.313728]  ? lockdep_hardirqs_on+0x296/0x5b0
[  622.318330]  ? trace_hardirqs_on+0xbd/0x310
[  622.322653]  ? kasan_check_read+0x11/0x20
[  622.326797]  ? __run_timers+0x7da/0xc70
[  622.330777]  ? trace_hardirqs_off_caller+0x310/0x310
[  622.335899]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  622.340134]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  622.344362]  __run_timers+0x7e5/0xc70
[  622.348172]  ? timer_fixup_init+0x70/0x70
[  622.352318]  ? _raw_spin_unlock_irq+0x27/0x80
[  622.356813]  ? _raw_spin_unlock_irq+0x27/0x80
[  622.361310]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  622.365894]  ? trace_hardirqs_on+0xbd/0x310
[  622.370242]  ? kasan_check_read+0x11/0x20
[  622.374420]  ? finish_task_switch+0x1f4/0x910
[  622.378912]  ? trace_hardirqs_off_caller+0x310/0x310
[  622.384011]  ? compat_start_thread+0x80/0x80
[  622.388438]  ? pvclock_read_flags+0x160/0x160
[  622.392932]  ? __switch_to_asm+0x34/0x70
[  622.396994]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  622.402531]  ? check_preemption_disabled+0x48/0x280
[  622.407554]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  622.413091]  ? rcu_pm_notify+0xc0/0xc0
[  622.417008]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  622.422546]  ? check_preemption_disabled+0x48/0x280
[  622.427565]  run_timer_softirq+0x52/0xb0
[  622.431624]  ? rcu_read_lock_sched_held+0x14f/0x180
[  622.436656]  __do_softirq+0x308/0xb7e
[  622.440460]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  622.445220]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  622.450319]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  622.455770]  ? trace_hardirqs_on+0x310/0x310
[  622.460186]  ? schedule+0x108/0x460
[  622.463823]  ? trace_hardirqs_off+0xb8/0x310
[  622.468243]  ? smpboot_thread_fn+0x68b/0xa00
[  622.472648]  ? trace_hardirqs_on+0x310/0x310
[  622.477060]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  622.482597]  ? check_preemption_disabled+0x48/0x280
[  622.487612]  ? takeover_tasklets+0xa90/0xa90
[  622.492018]  run_ksoftirqd+0x5e/0x100
[  622.495821]  smpboot_thread_fn+0x68b/0xa00
[  622.500071]  ? sort_range+0x30/0x30
[  622.503722]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  622.508845]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  622.514396]  ? __kthread_parkme+0xfb/0x1a0
[  622.518630]  ? sort_range+0x30/0x30
[  622.522252]  kthread+0x35a/0x440
[  622.525617]  ? kthread_stop+0x900/0x900
[  622.529596]  ret_from_fork+0x3a/0x50
[  622.533329] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  622.533400] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  622.540335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  622.540340] Call Trace:
[  622.540346]  <IRQ>
[  622.540363]  dump_stack+0x244/0x39d
[  622.540381]  ? dump_stack_print_info.cold.1+0x20/0x20
[  622.546931] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  622.556375]  warn_alloc.cold.116+0xb7/0x1bd
[  622.558933] ksoftirqd/0 cpuset=/ mems_allowed=0
[  622.561077]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  622.594007]  ? lock_downgrade+0x900/0x900
[  622.598164]  ? trace_hardirqs_off+0xb8/0x310
[  622.602576]  ? trace_hardirqs_off+0xb8/0x310
[  622.607010]  __alloc_pages_slowpath+0x2651/0x2de0
[  622.611898]  ? warn_alloc+0x120/0x120
[  622.615701]  ? print_usage_bug+0xc0/0xc0
[  622.619786]  ? warn_alloc+0x120/0x120
[  622.623590]  ? warn_alloc+0x120/0x120
[  622.627390]  ? print_usage_bug+0xc0/0xc0
[  622.631448]  ? kvm_clock_read+0x18/0x30
[  622.635420]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  622.640434]  ? print_usage_bug+0xc0/0xc0
[  622.644495]  ? __lock_acquire+0x62f/0x4c20
[  622.648744]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  622.654302]  ? should_fail+0x22d/0xd01
[  622.658185]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  622.663462]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  622.668582]  ? __lock_acquire+0x62f/0x4c20
[  622.672823]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  622.677926]  ? __lock_acquire+0x62f/0x4c20
[  622.682162]  ? should_fail+0x22d/0xd01
[  622.686708]  ? rcu_irq_exit+0x1a2/0x390
[  622.690706]  ? mark_held_locks+0x130/0x130
[  622.694952]  ? mark_held_locks+0x130/0x130
[  622.699191]  ? mark_held_locks+0xc7/0x130
[  622.703342]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  622.708357]  ? zap_class+0x640/0x640
[  622.712073]  ? print_usage_bug+0xc0/0xc0
[  622.716136]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  622.721675]  ? check_preemption_disabled+0x48/0x280
[  622.726698]  ? __lock_is_held+0xb5/0x140
[  622.730785]  __alloc_pages_nodemask+0xad8/0xea0
[  622.735478]  ? zap_class+0x640/0x640
[  622.739197]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  622.744221]  ? find_held_lock+0x36/0x1c0
[  622.748302]  ? ____cache_alloc_node+0x1c7/0x1e0
[  622.752984]  ? lock_downgrade+0x900/0x900
[  622.757142]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  622.762685]  cache_grow_begin+0xa5/0x8c0
[  622.766753]  ? do_raw_spin_unlock+0xa7/0x330
[  622.771170]  fallback_alloc+0x204/0x2e0
[  622.775151]  ____cache_alloc_node+0x1c7/0x1e0
[  622.779649]  kmem_cache_alloc_node+0xe3/0x730
[  622.784141]  ? ipv6_get_ifaddr+0x42e/0x620
[  622.788409]  __alloc_skb+0x119/0x770
[  622.792121]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  622.797401]  ? netdev_alloc_frag+0x1f0/0x1f0
[  622.801808]  ? lock_downgrade+0x900/0x900
[  622.805965]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  622.811500]  ? refcount_sub_and_test_checked+0x203/0x310
[  622.816965]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  622.822431]  ? addrconf_rs_timer+0x690/0x690
[  622.826854]  ndisc_alloc_skb+0x144/0x340
[  622.830920]  ndisc_send_rs+0x331/0x6e0
[  622.834814]  addrconf_rs_timer+0x314/0x690
[  622.839052]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  622.843298]  call_timer_fn+0x272/0x920
[  622.847187]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  622.851418]  ? process_timeout+0x40/0x40
[  622.855489]  ? mark_held_locks+0xc7/0x130
[  622.859636]  ? _raw_spin_unlock_irq+0x27/0x80
[  622.864128]  ? _raw_spin_unlock_irq+0x27/0x80
[  622.868621]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  622.872858]  ? lockdep_hardirqs_on+0x296/0x5b0
[  622.877442]  ? trace_hardirqs_on+0xbd/0x310
[  622.881779]  ? kasan_check_read+0x11/0x20
[  622.885939]  ? __run_timers+0x7da/0xc70
[  622.889931]  ? trace_hardirqs_off_caller+0x310/0x310
[  622.895038]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  622.899279]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  622.903528]  __run_timers+0x7e5/0xc70
[  622.907347]  ? timer_fixup_init+0x70/0x70
[  622.911495]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  622.916515]  ? zap_class+0x640/0x640
[  622.920247]  ? print_usage_bug+0xc0/0xc0
[  622.924313]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  622.929509]  ? find_held_lock+0x36/0x1c0
[  622.933575]  ? zap_class+0x640/0x640
[  622.937296]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  622.942847]  ? check_preemption_disabled+0x48/0x280
[  622.947889]  ? __lock_is_held+0xb5/0x140
[  622.951950]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  622.957503]  ? check_preemption_disabled+0x48/0x280
[  622.962538]  run_timer_softirq+0x52/0xb0
[  622.966613]  ? rcu_read_lock_sched_held+0x14f/0x180
[  622.971669]  __do_softirq+0x308/0xb7e
[  622.975471]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  622.979966]  ? lock_downgrade+0x900/0x900
[  622.984115]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  622.989227]  ? pvclock_read_flags+0x160/0x160
[  622.993725]  ? lapic_next_event+0x5a/0x90
[  622.997886]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  623.003428]  ? kvm_clock_read+0x18/0x30
[  623.007398]  ? kvm_sched_clock_read+0x9/0x20
[  623.011811]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  623.017363]  ? check_preemption_disabled+0x48/0x280
[  623.022390]  irq_exit+0x17f/0x1c0
[  623.025846]  smp_apic_timer_interrupt+0x1cb/0x760
[  623.030702]  ? smp_reschedule_interrupt+0x109/0x650
[  623.035721]  ? smp_call_function_single_interrupt+0x650/0x650
[  623.041660]  ? interrupt_entry+0xb5/0xc0
[  623.045722]  ? trace_hardirqs_off_caller+0xbb/0x310
[  623.050765]  ? trace_hardirqs_off_caller+0xbb/0x310
[  623.055781]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  623.060623]  ? trace_hardirqs_on_caller+0x310/0x310
[  623.065637]  ? trace_hardirqs_on_caller+0x310/0x310
[  623.070651]  ? task_prio+0x50/0x50
[  623.074194]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  623.079740]  ? check_preemption_disabled+0x48/0x280
[  623.084763]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  623.089614]  apic_timer_interrupt+0xf/0x20
[  623.093844]  </IRQ>
[  623.096080] RIP: 0010:dump_stack+0x358/0x39d
[  623.100516] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  623.119431] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  623.127153] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  623.134416] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  623.141686] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  623.148947] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  623.156226] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  623.163510]  ? dump_stack+0x34f/0x39d
[  623.167323]  ? dump_stack_print_info.cold.1+0x20/0x20
[  623.172518]  ? mark_held_locks+0x130/0x130
[  623.176768]  ? mark_held_locks+0x130/0x130
[  623.181008]  dump_header+0x27b/0xf72
[  623.184790]  ? pagefault_out_of_memory+0x197/0x197
[  623.189740]  ? __lock_acquire+0x62f/0x4c20
[  623.193979]  ? percpu_ref_get_many+0x240/0x240
[  623.198561]  ? print_usage_bug+0xc0/0xc0
[  623.202629]  ? zap_class+0x640/0x640
[  623.206344]  ? print_usage_bug+0xc0/0xc0
[  623.210404]  ? print_usage_bug+0xc0/0xc0
[  623.214465]  ? zap_class+0x640/0x640
[  623.218185]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  623.223729]  ? find_held_lock+0x36/0x1c0
[  623.227808]  ? mark_held_locks+0xc7/0x130
[  623.231957]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  623.237056]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  623.242155]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  623.246746]  ? trace_hardirqs_on+0xbd/0x310
[  623.251082]  ? kasan_check_read+0x11/0x20
[  623.255226]  ? ___ratelimit+0x3b4/0x672
[  623.259204]  ? trace_hardirqs_off_caller+0x310/0x310
[  623.264308]  ? trace_hardirqs_on+0x310/0x310
[  623.268714]  ? lock_downgrade+0x900/0x900
[  623.272875]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  623.277991]  ? ___ratelimit+0x3b9/0x672
[  623.281968]  ? idr_get_free+0xf70/0xf70
[  623.285940]  ? find_held_lock+0x36/0x1c0
[  623.290008]  oom_kill_process.cold.27+0x10/0x903
[  623.294765]  ? zap_class+0x640/0x640
[  623.298477]  ? check_preemption_disabled+0x48/0x280
[  623.303496]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  623.308424]  ? kasan_check_read+0x11/0x20
[  623.312570]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  623.317845]  ? oom_evaluate_task+0x540/0x540
[  623.322261]  ? find_held_lock+0x36/0x1c0
[  623.326330]  ? out_of_memory+0x974/0x1430
[  623.330476]  ? lock_downgrade+0x900/0x900
[  623.334620]  ? check_preemption_disabled+0x48/0x280
[  623.339647]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  623.344573]  ? kasan_check_read+0x11/0x20
[  623.348719]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  623.354003]  ? rcu_softirq_qs+0x20/0x20
[  623.357981]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  623.363513]  ? oom_evaluate_task+0x302/0x540
[  623.367943]  out_of_memory+0xa84/0x1430
[  623.371924]  ? oom_killer_disable+0x3a0/0x3a0
[  623.376418]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  623.381352]  ? __ww_mutex_check_waiters+0x160/0x160
[  623.386379]  __alloc_pages_slowpath+0x232c/0x2de0
[  623.391250]  ? warn_alloc+0x120/0x120
[  623.395091]  ? mark_held_locks+0x130/0x130
[  623.399347]  ? find_get_entry+0xaae/0x1120
[  623.403605]  ? filemap_map_pages+0x1a20/0x1a20
[  623.408191]  ? zap_class+0x640/0x640
[  623.411909]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  623.417457]  ? check_preemption_disabled+0x48/0x280
[  623.422469]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  623.428004]  ? should_fail+0x22d/0xd01
[  623.431898]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  623.437000]  ? zap_class+0x640/0x640
[  623.440758]  ? __lock_is_held+0xb5/0x140
[  623.444827]  ? mark_held_locks+0x130/0x130
[  623.449063]  ? lock_release+0xa00/0xa00
[  623.453038]  ? perf_trace_sched_process_exec+0x860/0x860
[  623.458483]  ? xa_load+0x2ba/0x460
[  623.462023]  ? lock_downgrade+0x900/0x900
[  623.466178]  ? __might_sleep+0x95/0x190
[  623.470184]  __alloc_pages_nodemask+0xad8/0xea0
[  623.474872]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  623.479889]  ? __page_cache_alloc+0x191/0x5c0
[  623.484385]  ? xa_load+0x2e1/0x460
[  623.487929]  ? xa_clear_mark+0x40/0x40
[  623.491820]  ? zap_class+0x640/0x640
[  623.495542]  ? zap_class+0x640/0x640
[  623.499273]  ? zap_class+0x640/0x640
[  623.503009]  ? __do_page_cache_readahead+0x663/0x810
[  623.508117]  ? find_held_lock+0x36/0x1c0
[  623.512179]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  623.517721]  alloc_pages_current+0x173/0x350
[  623.522143]  __page_cache_alloc+0x38c/0x5c0
[  623.526466]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  623.531419]  ? kasan_check_read+0x11/0x20
[  623.535570]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  623.540874]  ? generic_perform_write+0x6a0/0x6a0
[  623.545628]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  623.551161]  ? check_preemption_disabled+0x48/0x280
[  623.556230]  filemap_fault+0x1595/0x25f0
[  623.560307]  ? __lock_page_or_retry+0xa00/0xa00
[  623.564978]  ? mark_held_locks+0x130/0x130
[  623.569219]  ? filemap_map_pages+0xd6b/0x1a20
[  623.573713]  ? lock_downgrade+0x900/0x900
[  623.577872]  ? check_preemption_disabled+0x48/0x280
[  623.582891]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  623.587817]  ? kasan_check_read+0x11/0x20
[  623.591977]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  623.597288]  ? rcu_softirq_qs+0x20/0x20
[  623.601277]  ? filemap_map_pages+0xd92/0x1a20
[  623.605773]  ? print_usage_bug+0xc0/0xc0
[  623.609841]  ? find_get_entries_tag+0x1400/0x1400
[  623.614695]  ? __kasan_slab_free+0x102/0x150
[  623.619101]  ? kasan_slab_free+0xe/0x10
[  623.623090]  ? kmem_cache_free+0x83/0x290
[  623.627239]  ? __sigqueue_free.part.29+0x74/0x90
[  623.632017]  ? lock_acquire+0x1ed/0x520
[  623.636003]  ? ext4_filemap_fault+0x7a/0xad
[  623.640329]  ? lock_release+0xa00/0xa00
[  623.644297]  ? perf_trace_sched_process_exec+0x860/0x860
[  623.649753]  ? print_usage_bug+0xc0/0xc0
[  623.653823]  ? print_usage_bug+0xc0/0xc0
[  623.657893]  ? down_read+0x8d/0x120
[  623.661518]  ? ext4_filemap_fault+0x7a/0xad
[  623.665854]  ? __down_interruptible+0x700/0x700
[  623.670532]  ext4_filemap_fault+0x82/0xad
[  623.674681]  __do_fault+0x100/0x6b0
[  623.678314]  ? pmd_devmap_trans_unstable+0x220/0x220
[  623.683420]  ? mark_held_locks+0x130/0x130
[  623.687658]  ? mark_held_locks+0x130/0x130
[  623.691892]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  623.697436]  ? rcu_pm_notify+0xc0/0xc0
[  623.701346]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  623.706899]  __handle_mm_fault+0x3ea0/0x5be0
[  623.711317]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  623.716159]  ? _raw_spin_unlock_irq+0x27/0x80
[  623.720651]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  623.725236]  ? trace_hardirqs_on+0xbd/0x310
[  623.729563]  ? kasan_check_read+0x11/0x20
[  623.733712]  ? __set_current_blocked+0xdf/0x120
[  623.738390]  ? trace_hardirqs_off_caller+0x310/0x310
[  623.743505]  ? zap_class+0x640/0x640
[  623.747217]  ? zap_class+0x640/0x640
[  623.750939]  ? find_held_lock+0x36/0x1c0
[  623.755014]  ? handle_mm_fault+0x42a/0xc70
[  623.759247]  ? lock_downgrade+0x900/0x900
[  623.763426]  ? check_preemption_disabled+0x48/0x280
[  623.768445]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  623.773374]  ? kasan_check_read+0x11/0x20
[  623.777524]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  623.782797]  ? rcu_softirq_qs+0x20/0x20
[  623.786769]  ? trace_hardirqs_off_caller+0x310/0x310
[  623.791874]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  623.797414]  ? check_preemption_disabled+0x48/0x280
[  623.802442]  handle_mm_fault+0x54f/0xc70
[  623.806508]  ? __handle_mm_fault+0x5be0/0x5be0
[  623.811109]  ? find_vma+0x34/0x190
[  623.814649]  __do_page_fault+0x5e8/0xe60
[  623.818726]  ? exit_to_usermode_loop+0x1f4/0x380
[  623.823501]  do_page_fault+0xf2/0x7e0
[  623.827315]  ? vmalloc_sync_all+0x30/0x30
[  623.831491]  ? error_entry+0x70/0xd0
[  623.835202]  ? trace_hardirqs_off_caller+0xbb/0x310
[  623.840229]  ? trace_hardirqs_on_caller+0xc0/0x310
[  623.845156]  ? syscall_return_slowpath+0x5e0/0x5e0
[  623.850093]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  623.855036]  ? trace_hardirqs_on_caller+0x310/0x310
[  623.860067]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  623.865522]  ? prepare_exit_to_usermode+0x291/0x3b0
[  623.870582]  ? page_fault+0x8/0x30
[  623.874123]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  623.878969]  ? page_fault+0x8/0x30
[  623.882508]  page_fault+0x1e/0x30
[  623.885955] RIP: 0033:0x45db60
[  623.889157] Code: Bad RIP value.
[  623.892533] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  623.897891] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  623.905160] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  623.912426] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  623.919692] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  623.926955] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  623.934266] warn_alloc_show_mem: 1 callbacks suppressed
[  623.934293] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  623.934295] Mem-Info:
[  623.934327] active_anon:42936 inactive_anon:306 isolated_anon:0
[  623.934327]  active_file:13 inactive_file:13 isolated_file:0
[  623.934327]  unevictable:0 dirty:0 writeback:0 unstable:0
[  623.934327]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  623.934327]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  623.934327]  free:13785 free_pcp:492 free_cma:0
[  623.939658] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  623.939666] Call Trace:
[  623.946540] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  623.948954]  dump_stack+0x244/0x39d
[  623.981718] 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
[  623.991077]  ? dump_stack_print_info.cold.1+0x20/0x20
[  623.993635] lowmem_reserve[]: 0 2818 6321 6321
[  624.021237]  warn_alloc.cold.116+0xb7/0x1bd
[  624.024849] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  624.050951]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  624.056129] lowmem_reserve[]: 0 0 3503 3503
[  624.060703]  ? lock_downgrade+0x900/0x900
[  624.065013] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  624.092157]  ? trace_hardirqs_off+0xb8/0x310
[  624.096966] lowmem_reserve[]: 0 0 0 0
[  624.101280]  ? trace_hardirqs_off+0xb8/0x310
[  624.105397] 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
[  624.134539]  __alloc_pages_slowpath+0x2651/0x2de0
[  624.138914] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  624.142750]  ? warn_alloc+0x120/0x120
[  624.147114] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  624.160630]  ? print_usage_bug+0xc0/0xc0
[  624.165450] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  624.180605]  ? warn_alloc+0x120/0x120
[  624.184384] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  624.199556]  ? warn_alloc+0x120/0x120
[  624.203587] 380 total pagecache pages
[  624.212441]  ? print_usage_bug+0xc0/0xc0
[  624.216222] 0 pages in swap cache
[  624.224784]  ? print_usage_bug+0xc0/0xc0
[  624.228563] Swap cache stats: add 0, delete 0, find 0/0
[  624.232348]  ? __lock_acquire+0x62f/0x4c20
[  624.236383] Free swap  = 0kB
[  624.239825]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  624.243859] Total swap = 0kB
[  624.249213]  ? should_fail+0x22d/0xd01
[  624.253423] 1965979 pages RAM
[  624.256433]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  624.261941] 0 pages HighMem/MovableOnly
[  624.264948]  ? __lock_acquire+0x62f/0x4c20
[  624.268810] 342854 pages reserved
[  624.271909]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  624.276986] 0 pages cma reserved
[  624.280953]  ? __lock_acquire+0x62f/0x4c20
[  624.285217] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  624.288598]  ? should_fail+0x22d/0xd01
[  624.288614]  ? find_held_lock+0x36/0x1c0
[  624.293802] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  624.297067]  ? mark_held_locks+0x130/0x130
[  624.301278] syz-fuzzer cpuset=/ mems_allowed=0
[  624.307786]  ? mark_held_locks+0x130/0x130
[  624.338901]  ? zap_class+0x640/0x640
[  624.342616]  ? zap_class+0x640/0x640
[  624.346336]  ? print_usage_bug+0xc0/0xc0
[  624.350406]  ? do_raw_spin_unlock+0xa7/0x330
[  624.354819]  ? zap_class+0x640/0x640
[  624.358547]  ? print_usage_bug+0xc0/0xc0
[  624.362607]  ? wq_watchdog_touch+0x9c/0xfe
[  624.366844]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  624.372383]  ? check_preemption_disabled+0x48/0x280
[  624.377406]  ? __lock_is_held+0xb5/0x140
[  624.381475]  __alloc_pages_nodemask+0xad8/0xea0
[  624.386146]  ? zap_class+0x640/0x640
[  624.389872]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  624.394947]  ? find_held_lock+0x36/0x1c0
[  624.399016]  ? ____cache_alloc_node+0x1c7/0x1e0
[  624.403684]  ? lock_downgrade+0x900/0x900
[  624.407846]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  624.413388]  cache_grow_begin+0xa5/0x8c0
[  624.417447]  ? do_raw_spin_unlock+0xa7/0x330
[  624.421859]  fallback_alloc+0x204/0x2e0
[  624.425840]  ____cache_alloc_node+0x1c7/0x1e0
[  624.430342]  kmem_cache_alloc_node+0xe3/0x730
[  624.434836]  ? ipv6_get_ifaddr+0x42e/0x620
[  624.439078]  __alloc_skb+0x119/0x770
[  624.442787]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  624.448068]  ? netdev_alloc_frag+0x1f0/0x1f0
[  624.452491]  ? lock_downgrade+0x900/0x900
[  624.456712]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  624.462296]  ? refcount_sub_and_test_checked+0x203/0x310
[  624.467779]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  624.473236]  ? addrconf_rs_timer+0x690/0x690
[  624.477673]  ndisc_alloc_skb+0x144/0x340
[  624.481768]  ndisc_send_rs+0x331/0x6e0
[  624.485664]  addrconf_rs_timer+0x314/0x690
[  624.489923]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  624.494166]  call_timer_fn+0x272/0x920
[  624.498051]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  624.502285]  ? process_timeout+0x40/0x40
[  624.506369]  ? __run_timers+0x7da/0xc70
[  624.510342]  ? _raw_spin_unlock_irq+0x27/0x80
[  624.514836]  ? _raw_spin_unlock_irq+0x27/0x80
[  624.519326]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  624.523561]  ? lockdep_hardirqs_on+0x296/0x5b0
[  624.528140]  ? trace_hardirqs_on+0xbd/0x310
[  624.532457]  ? kasan_check_read+0x11/0x20
[  624.536602]  ? __run_timers+0x7da/0xc70
[  624.540589]  ? trace_hardirqs_off_caller+0x310/0x310
[  624.545697]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  624.549936]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  624.554680]  __run_timers+0x7e5/0xc70
[  624.558486]  ? timer_fixup_init+0x70/0x70
[  624.562634]  ? _raw_spin_unlock_irq+0x27/0x80
[  624.567130]  ? _raw_spin_unlock_irq+0x27/0x80
[  624.571626]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  624.576220]  ? trace_hardirqs_on+0xbd/0x310
[  624.580538]  ? kasan_check_read+0x11/0x20
[  624.584701]  ? finish_task_switch+0x1f4/0x910
[  624.589240]  ? trace_hardirqs_off_caller+0x310/0x310
[  624.594343]  ? compat_start_thread+0x80/0x80
[  624.598788]  ? pvclock_read_flags+0x160/0x160
[  624.603280]  ? __switch_to_asm+0x34/0x70
[  624.607345]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  624.612886]  ? check_preemption_disabled+0x48/0x280
[  624.617916]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  624.623452]  ? rcu_pm_notify+0xc0/0xc0
[  624.627338]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  624.632877]  ? check_preemption_disabled+0x48/0x280
[  624.637899]  run_timer_softirq+0x52/0xb0
[  624.641965]  ? rcu_read_lock_sched_held+0x14f/0x180
[  624.647071]  __do_softirq+0x308/0xb7e
[  624.650879]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  624.655643]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  624.660760]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  624.666212]  ? trace_hardirqs_on+0x310/0x310
[  624.670626]  ? schedule+0x108/0x460
[  624.674264]  ? trace_hardirqs_off+0xb8/0x310
[  624.678672]  ? smpboot_thread_fn+0x68b/0xa00
[  624.683084]  ? trace_hardirqs_on+0x310/0x310
[  624.687627]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  624.693171]  ? check_preemption_disabled+0x48/0x280
[  624.698188]  ? takeover_tasklets+0xa90/0xa90
[  624.702602]  run_ksoftirqd+0x5e/0x100
[  624.706406]  smpboot_thread_fn+0x68b/0xa00
[  624.710644]  ? sort_range+0x30/0x30
[  624.714269]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  624.719376]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  624.724911]  ? __kthread_parkme+0xfb/0x1a0
[  624.729150]  ? sort_range+0x30/0x30
[  624.732801]  kthread+0x35a/0x440
[  624.736176]  ? kthread_stop+0x900/0x900
[  624.740186]  ret_from_fork+0x3a/0x50
[  624.743918] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  624.743989] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  624.750941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  624.750946] Call Trace:
[  624.750953]  <IRQ>
[  624.750985]  dump_stack+0x244/0x39d
[  624.751018]  ? dump_stack_print_info.cold.1+0x20/0x20
[  624.757621] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  624.766871]  warn_alloc.cold.116+0xb7/0x1bd
[  624.769431] ksoftirqd/0 cpuset=/ mems_allowed=0
[  624.771575]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  624.804447]  ? lock_downgrade+0x900/0x900
[  624.808604]  ? trace_hardirqs_off+0xb8/0x310
[  624.813018]  ? trace_hardirqs_off+0xb8/0x310
[  624.817436]  __alloc_pages_slowpath+0x2651/0x2de0
[  624.822325]  ? warn_alloc+0x120/0x120
[  624.826131]  ? print_usage_bug+0xc0/0xc0
[  624.830197]  ? warn_alloc+0x120/0x120
[  624.834017]  ? warn_alloc+0x120/0x120
[  624.837824]  ? print_usage_bug+0xc0/0xc0
[  624.841887]  ? kvm_clock_read+0x18/0x30
[  624.845863]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  624.850884]  ? print_usage_bug+0xc0/0xc0
[  624.854947]  ? __lock_acquire+0x62f/0x4c20
[  624.859191]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  624.864726]  ? should_fail+0x22d/0xd01
[  624.868624]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  624.873900]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  624.879016]  ? __lock_acquire+0x62f/0x4c20
[  624.883263]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  624.888368]  ? __lock_acquire+0x62f/0x4c20
[  624.892604]  ? should_fail+0x22d/0xd01
[  624.896487]  ? rcu_irq_exit+0x1a2/0x390
[  624.900484]  ? mark_held_locks+0x130/0x130
[  624.904728]  ? mark_held_locks+0x130/0x130
[  624.908981]  ? mark_held_locks+0xc7/0x130
[  624.913133]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  624.918149]  ? zap_class+0x640/0x640
[  624.921866]  ? print_usage_bug+0xc0/0xc0
[  624.925931]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  624.931472]  ? check_preemption_disabled+0x48/0x280
[  624.936498]  ? __lock_is_held+0xb5/0x140
[  624.940568]  __alloc_pages_nodemask+0xad8/0xea0
[  624.945233]  ? zap_class+0x640/0x640
[  624.948957]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  624.953987]  ? find_held_lock+0x36/0x1c0
[  624.958058]  ? ____cache_alloc_node+0x1c7/0x1e0
[  624.962725]  ? lock_downgrade+0x900/0x900
[  624.966916]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  624.972457]  cache_grow_begin+0xa5/0x8c0
[  624.976515]  ? do_raw_spin_unlock+0xa7/0x330
[  624.980930]  fallback_alloc+0x204/0x2e0
[  624.984907]  ____cache_alloc_node+0x1c7/0x1e0
[  624.989407]  kmem_cache_alloc_node+0xe3/0x730
[  624.993899]  ? ipv6_get_ifaddr+0x42e/0x620
[  624.998143]  __alloc_skb+0x119/0x770
[  625.001870]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  625.007155]  ? netdev_alloc_frag+0x1f0/0x1f0
[  625.011566]  ? lock_downgrade+0x900/0x900
[  625.015756]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  625.021297]  ? refcount_sub_and_test_checked+0x203/0x310
[  625.026757]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  625.032227]  ? addrconf_rs_timer+0x690/0x690
[  625.036650]  ndisc_alloc_skb+0x144/0x340
[  625.040714]  ndisc_send_rs+0x331/0x6e0
[  625.044616]  addrconf_rs_timer+0x314/0x690
[  625.048861]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  625.053145]  call_timer_fn+0x272/0x920
[  625.057031]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  625.061268]  ? process_timeout+0x40/0x40
[  625.065341]  ? mark_held_locks+0xc7/0x130
[  625.069487]  ? _raw_spin_unlock_irq+0x27/0x80
[  625.073983]  ? _raw_spin_unlock_irq+0x27/0x80
[  625.078475]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  625.082706]  ? lockdep_hardirqs_on+0x296/0x5b0
[  625.087316]  ? trace_hardirqs_on+0xbd/0x310
[  625.091635]  ? kasan_check_read+0x11/0x20
[  625.095783]  ? __run_timers+0x7da/0xc70
[  625.099757]  ? trace_hardirqs_off_caller+0x310/0x310
[  625.104880]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  625.109120]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  625.113355]  __run_timers+0x7e5/0xc70
[  625.117164]  ? timer_fixup_init+0x70/0x70
[  625.121315]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  625.126327]  ? zap_class+0x640/0x640
[  625.130042]  ? print_usage_bug+0xc0/0xc0
[  625.134100]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  625.139299]  ? find_held_lock+0x36/0x1c0
[  625.143365]  ? zap_class+0x640/0x640
[  625.147088]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  625.152640]  ? check_preemption_disabled+0x48/0x280
[  625.157664]  ? __lock_is_held+0xb5/0x140
[  625.161726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  625.167279]  ? check_preemption_disabled+0x48/0x280
[  625.172315]  run_timer_softirq+0x52/0xb0
[  625.176374]  ? rcu_read_lock_sched_held+0x14f/0x180
[  625.181402]  __do_softirq+0x308/0xb7e
[  625.185205]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  625.189695]  ? lock_downgrade+0x900/0x900
[  625.193846]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  625.198968]  ? pvclock_read_flags+0x160/0x160
[  625.203470]  ? lapic_next_event+0x5a/0x90
[  625.207624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  625.213171]  ? kvm_clock_read+0x18/0x30
[  625.217144]  ? kvm_sched_clock_read+0x9/0x20
[  625.221567]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  625.227114]  ? check_preemption_disabled+0x48/0x280
[  625.232150]  irq_exit+0x17f/0x1c0
[  625.235605]  smp_apic_timer_interrupt+0x1cb/0x760
[  625.240461]  ? smp_reschedule_interrupt+0x109/0x650
[  625.245474]  ? smp_call_function_single_interrupt+0x650/0x650
[  625.251352]  ? interrupt_entry+0xb5/0xc0
[  625.255414]  ? trace_hardirqs_off_caller+0xbb/0x310
[  625.260430]  ? trace_hardirqs_off_caller+0xbb/0x310
[  625.265449]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  625.270293]  ? trace_hardirqs_on_caller+0x310/0x310
[  625.275306]  ? trace_hardirqs_on_caller+0x310/0x310
[  625.280318]  ? task_prio+0x50/0x50
[  625.283859]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  625.289394]  ? check_preemption_disabled+0x48/0x280
[  625.294417]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  625.299274]  apic_timer_interrupt+0xf/0x20
[  625.303501]  </IRQ>
[  625.305756] RIP: 0010:dump_stack+0x358/0x39d
[  625.310168] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  625.329064] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  625.336795] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  625.344059] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  625.351323] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  625.358590] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  625.365851] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  625.373139]  ? dump_stack+0x34f/0x39d
[  625.376957]  ? dump_stack_print_info.cold.1+0x20/0x20
[  625.382149]  ? mark_held_locks+0x130/0x130
[  625.386380]  ? mark_held_locks+0x130/0x130
[  625.390625]  dump_header+0x27b/0xf72
[  625.394353]  ? pagefault_out_of_memory+0x197/0x197
[  625.399291]  ? __lock_acquire+0x62f/0x4c20
[  625.403530]  ? percpu_ref_get_many+0x240/0x240
[  625.408111]  ? print_usage_bug+0xc0/0xc0
[  625.412182]  ? zap_class+0x640/0x640
[  625.415900]  ? print_usage_bug+0xc0/0xc0
[  625.419957]  ? print_usage_bug+0xc0/0xc0
[  625.424018]  ? zap_class+0x640/0x640
[  625.427758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  625.433299]  ? find_held_lock+0x36/0x1c0
[  625.437380]  ? mark_held_locks+0xc7/0x130
[  625.441529]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  625.446627]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  625.451756]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  625.456357]  ? trace_hardirqs_on+0xbd/0x310
[  625.460675]  ? kasan_check_read+0x11/0x20
[  625.464824]  ? ___ratelimit+0x3b4/0x672
[  625.468815]  ? trace_hardirqs_off_caller+0x310/0x310
[  625.473937]  ? trace_hardirqs_on+0x310/0x310
[  625.478345]  ? lock_downgrade+0x900/0x900
[  625.482514]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  625.487617]  ? ___ratelimit+0x3b9/0x672
[  625.491606]  ? idr_get_free+0xf70/0xf70
[  625.495576]  ? find_held_lock+0x36/0x1c0
[  625.499641]  oom_kill_process.cold.27+0x10/0x903
[  625.504398]  ? zap_class+0x640/0x640
[  625.508110]  ? check_preemption_disabled+0x48/0x280
[  625.513127]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  625.518053]  ? kasan_check_read+0x11/0x20
[  625.522197]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  625.527476]  ? oom_evaluate_task+0x540/0x540
[  625.531888]  ? find_held_lock+0x36/0x1c0
[  625.535960]  ? out_of_memory+0x974/0x1430
[  625.540112]  ? lock_downgrade+0x900/0x900
[  625.544268]  ? check_preemption_disabled+0x48/0x280
[  625.549303]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  625.554230]  ? kasan_check_read+0x11/0x20
[  625.558392]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  625.563666]  ? rcu_softirq_qs+0x20/0x20
[  625.567647]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  625.573180]  ? oom_evaluate_task+0x302/0x540
[  625.577589]  out_of_memory+0xa84/0x1430
[  625.581571]  ? oom_killer_disable+0x3a0/0x3a0
[  625.586077]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  625.591032]  ? __ww_mutex_check_waiters+0x160/0x160
[  625.596056]  __alloc_pages_slowpath+0x232c/0x2de0
[  625.600932]  ? warn_alloc+0x120/0x120
[  625.604745]  ? mark_held_locks+0x130/0x130
[  625.608986]  ? find_get_entry+0xaae/0x1120
[  625.613230]  ? filemap_map_pages+0x1a20/0x1a20
[  625.617818]  ? zap_class+0x640/0x640
[  625.621535]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  625.627087]  ? check_preemption_disabled+0x48/0x280
[  625.632105]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  625.637643]  ? should_fail+0x22d/0xd01
[  625.641560]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  625.646662]  ? zap_class+0x640/0x640
[  625.650402]  ? __lock_is_held+0xb5/0x140
[  625.654476]  ? mark_held_locks+0x130/0x130
[  625.658713]  ? lock_release+0xa00/0xa00
[  625.662692]  ? perf_trace_sched_process_exec+0x860/0x860
[  625.668138]  ? xa_load+0x2ba/0x460
[  625.671682]  ? lock_downgrade+0x900/0x900
[  625.675832]  ? __might_sleep+0x95/0x190
[  625.679811]  __alloc_pages_nodemask+0xad8/0xea0
[  625.684489]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  625.689512]  ? __page_cache_alloc+0x191/0x5c0
[  625.694020]  ? xa_load+0x2e1/0x460
[  625.697561]  ? xa_clear_mark+0x40/0x40
[  625.701453]  ? zap_class+0x640/0x640
[  625.705172]  ? zap_class+0x640/0x640
[  625.708902]  ? zap_class+0x640/0x640
[  625.712618]  ? __do_page_cache_readahead+0x663/0x810
[  625.717726]  ? find_held_lock+0x36/0x1c0
[  625.721800]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  625.727344]  alloc_pages_current+0x173/0x350
[  625.731766]  __page_cache_alloc+0x38c/0x5c0
[  625.736086]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  625.741015]  ? kasan_check_read+0x11/0x20
[  625.745164]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  625.750439]  ? generic_perform_write+0x6a0/0x6a0
[  625.755197]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  625.760754]  ? check_preemption_disabled+0x48/0x280
[  625.765786]  filemap_fault+0x1595/0x25f0
[  625.769862]  ? __lock_page_or_retry+0xa00/0xa00
[  625.774530]  ? mark_held_locks+0x130/0x130
[  625.778779]  ? filemap_map_pages+0xd6b/0x1a20
[  625.783300]  ? lock_downgrade+0x900/0x900
[  625.787451]  ? check_preemption_disabled+0x48/0x280
[  625.792472]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  625.797398]  ? kasan_check_read+0x11/0x20
[  625.801542]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  625.806822]  ? rcu_softirq_qs+0x20/0x20
[  625.810828]  ? filemap_map_pages+0xd92/0x1a20
[  625.815326]  ? print_usage_bug+0xc0/0xc0
[  625.819415]  ? find_get_entries_tag+0x1400/0x1400
[  625.824261]  ? __kasan_slab_free+0x102/0x150
[  625.828670]  ? kasan_slab_free+0xe/0x10
[  625.832641]  ? kmem_cache_free+0x83/0x290
[  625.836801]  ? __sigqueue_free.part.29+0x74/0x90
[  625.841585]  ? lock_acquire+0x1ed/0x520
[  625.845556]  ? ext4_filemap_fault+0x7a/0xad
[  625.849909]  ? lock_release+0xa00/0xa00
[  625.853881]  ? perf_trace_sched_process_exec+0x860/0x860
[  625.859336]  ? print_usage_bug+0xc0/0xc0
[  625.863401]  ? print_usage_bug+0xc0/0xc0
[  625.867473]  ? down_read+0x8d/0x120
[  625.871100]  ? ext4_filemap_fault+0x7a/0xad
[  625.875420]  ? __down_interruptible+0x700/0x700
[  625.880097]  ext4_filemap_fault+0x82/0xad
[  625.884267]  __do_fault+0x100/0x6b0
[  625.887897]  ? pmd_devmap_trans_unstable+0x220/0x220
[  625.893017]  ? mark_held_locks+0x130/0x130
[  625.897274]  ? mark_held_locks+0x130/0x130
[  625.901507]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  625.907049]  ? rcu_pm_notify+0xc0/0xc0
[  625.910942]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  625.916483]  __handle_mm_fault+0x3ea0/0x5be0
[  625.920899]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  625.925745]  ? _raw_spin_unlock_irq+0x27/0x80
[  625.930261]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  625.934846]  ? trace_hardirqs_on+0xbd/0x310
[  625.939165]  ? kasan_check_read+0x11/0x20
[  625.943314]  ? __set_current_blocked+0xdf/0x120
[  625.947983]  ? trace_hardirqs_off_caller+0x310/0x310
[  625.953117]  ? zap_class+0x640/0x640
[  625.956828]  ? zap_class+0x640/0x640
[  625.960564]  ? find_held_lock+0x36/0x1c0
[  625.964649]  ? handle_mm_fault+0x42a/0xc70
[  625.968883]  ? lock_downgrade+0x900/0x900
[  625.973043]  ? check_preemption_disabled+0x48/0x280
[  625.978061]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  625.982990]  ? kasan_check_read+0x11/0x20
[  625.987154]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  625.992432]  ? rcu_softirq_qs+0x20/0x20
[  625.996404]  ? trace_hardirqs_off_caller+0x310/0x310
[  626.001506]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  626.007045]  ? check_preemption_disabled+0x48/0x280
[  626.012068]  handle_mm_fault+0x54f/0xc70
[  626.016146]  ? __handle_mm_fault+0x5be0/0x5be0
[  626.020731]  ? find_vma+0x34/0x190
[  626.024288]  __do_page_fault+0x5e8/0xe60
[  626.028353]  ? exit_to_usermode_loop+0x1f4/0x380
[  626.033116]  do_page_fault+0xf2/0x7e0
[  626.036913]  ? vmalloc_sync_all+0x30/0x30
[  626.041058]  ? error_entry+0x70/0xd0
[  626.044770]  ? trace_hardirqs_off_caller+0xbb/0x310
[  626.049786]  ? trace_hardirqs_on_caller+0xc0/0x310
[  626.054713]  ? syscall_return_slowpath+0x5e0/0x5e0
[  626.059647]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  626.064489]  ? trace_hardirqs_on_caller+0x310/0x310
[  626.069515]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  626.074970]  ? prepare_exit_to_usermode+0x291/0x3b0
[  626.079983]  ? page_fault+0x8/0x30
[  626.083528]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  626.088370]  ? page_fault+0x8/0x30
[  626.091911]  page_fault+0x1e/0x30
[  626.095360] RIP: 0033:0x45db60
[  626.098560] Code: Bad RIP value.
[  626.101932] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  626.107300] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  626.114569] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  626.121836] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  626.129114] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  626.136378] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  626.143677] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  626.143682] warn_alloc_show_mem: 1 callbacks suppressed
[  626.143689] Mem-Info:
[  626.150524] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  626.155893] active_anon:42936 inactive_anon:306 isolated_anon:0
[  626.155893]  active_file:13 inactive_file:13 isolated_file:0
[  626.155893]  unevictable:0 dirty:0 writeback:0 unstable:0
[  626.155893]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  626.155893]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  626.155893]  free:13785 free_pcp:492 free_cma:0
[  626.158267] Call Trace:
[  626.167666] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  626.200433]  dump_stack+0x244/0x39d
[  626.202992] 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
[  626.230571]  ? dump_stack_print_info.cold.1+0x20/0x20
[  626.234167] lowmem_reserve[]: 0 2818 6321 6321
[  626.260280]  warn_alloc.cold.116+0xb7/0x1bd
[  626.265439] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  626.270015]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  626.274312] lowmem_reserve[]: 0 0 3503 3503
[  626.301457]  ? lock_downgrade+0x900/0x900
[  626.306277] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  626.310594]  ? trace_hardirqs_off+0xb8/0x310
[  626.314749] lowmem_reserve[]: 0 0 0 0
[  626.343898]  ? trace_hardirqs_off+0xb8/0x310
[  626.348282] 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
[  626.352077]  __alloc_pages_slowpath+0x2651/0x2de0
[  626.356452] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  626.370021]  ? warn_alloc+0x120/0x120
[  626.374811] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  626.390009]  ? warn_alloc+0x120/0x120
[  626.393789] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  626.408945]  ? warn_alloc+0x120/0x120
[  626.412721] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  626.421551]  ? print_usage_bug+0xc0/0xc0
[  626.425326] 380 total pagecache pages
[  626.433891]  ? print_usage_bug+0xc0/0xc0
[  626.437934] 0 pages in swap cache
[  626.441721]  ? __bfs+0x321/0x780
[  626.445771] Swap cache stats: add 0, delete 0, find 0/0
[  626.449233]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  626.452565] Free swap  = 0kB
[  626.457933]  ? should_fail+0x22d/0xd01
[  626.463442] Total swap = 0kB
[  626.466464]  ? __lock_acquire+0x62f/0x4c20
[  626.470323] 1965979 pages RAM
[  626.473335]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  626.477539] 0 pages HighMem/MovableOnly
[  626.480648]  ? __lock_acquire+0x62f/0x4c20
[  626.485722] 342854 pages reserved
[  626.489693]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  626.493899] 0 pages cma reserved
[  626.497361]  ? __lock_acquire+0x62f/0x4c20
[  626.502522] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  626.505818]  ? should_fail+0x22d/0xd01
[  626.505843]  ? mark_held_locks+0x130/0x130
[  626.510142] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  626.516525]  ? mark_held_locks+0x130/0x130
[  626.520386] syz-fuzzer cpuset=/ mems_allowed=0
[  626.524612]  ? mark_held_locks+0x130/0x130
[  626.547823]  ? zap_class+0x640/0x640
[  626.551535]  ? print_usage_bug+0xc0/0xc0
[  626.556079]  ? mark_held_locks+0x130/0x130
[  626.560311]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  626.565852]  ? check_preemption_disabled+0x48/0x280
[  626.570880]  ? __lock_is_held+0xb5/0x140
[  626.574950]  __alloc_pages_nodemask+0xad8/0xea0
[  626.579616]  ? zap_class+0x640/0x640
[  626.583337]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  626.588380]  ? find_held_lock+0x36/0x1c0
[  626.592465]  ? ____cache_alloc_node+0x1c7/0x1e0
[  626.597137]  ? lock_downgrade+0x900/0x900
[  626.601293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  626.606856]  cache_grow_begin+0xa5/0x8c0
[  626.610930]  ? do_raw_spin_unlock+0xa7/0x330
[  626.615345]  fallback_alloc+0x204/0x2e0
[  626.619322]  ____cache_alloc_node+0x1c7/0x1e0
[  626.623822]  kmem_cache_alloc_node+0xe3/0x730
[  626.628330]  ? ipv6_get_ifaddr+0x42e/0x620
[  626.632632]  __alloc_skb+0x119/0x770
[  626.636344]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  626.641625]  ? netdev_alloc_frag+0x1f0/0x1f0
[  626.646036]  ? lock_downgrade+0x900/0x900
[  626.650214]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  626.655777]  ? refcount_sub_and_test_checked+0x203/0x310
[  626.661254]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  626.666703]  ? addrconf_rs_timer+0x690/0x690
[  626.671128]  ndisc_alloc_skb+0x144/0x340
[  626.675192]  ndisc_send_rs+0x331/0x6e0
[  626.679119]  addrconf_rs_timer+0x314/0x690
[  626.683359]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  626.687748]  call_timer_fn+0x272/0x920
[  626.691643]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  626.695878]  ? process_timeout+0x40/0x40
[  626.699949]  ? __run_timers+0x7da/0xc70
[  626.703944]  ? _raw_spin_unlock_irq+0x27/0x80
[  626.708435]  ? _raw_spin_unlock_irq+0x27/0x80
[  626.712929]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  626.717174]  ? lockdep_hardirqs_on+0x296/0x5b0
[  626.721766]  ? trace_hardirqs_on+0xbd/0x310
[  626.726103]  ? kasan_check_read+0x11/0x20
[  626.730245]  ? __run_timers+0x7da/0xc70
[  626.734219]  ? trace_hardirqs_off_caller+0x310/0x310
[  626.739331]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  626.743560]  __run_timers+0x7e5/0xc70
[  626.747371]  ? timer_fixup_init+0x70/0x70
[  626.751522]  ? _raw_spin_unlock_irq+0x27/0x80
[  626.756016]  ? _raw_spin_unlock_irq+0x27/0x80
[  626.760516]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  626.765107]  ? trace_hardirqs_on+0xbd/0x310
[  626.769428]  ? kasan_check_read+0x11/0x20
[  626.773609]  ? finish_task_switch+0x1f4/0x910
[  626.778103]  ? trace_hardirqs_off_caller+0x310/0x310
[  626.783227]  ? compat_start_thread+0x80/0x80
[  626.787655]  ? pvclock_read_flags+0x160/0x160
[  626.792148]  ? __switch_to_asm+0x34/0x70
[  626.796210]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  626.801762]  ? check_preemption_disabled+0x48/0x280
[  626.806803]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  626.812339]  ? rcu_pm_notify+0xc0/0xc0
[  626.816229]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  626.821782]  ? check_preemption_disabled+0x48/0x280
[  626.826806]  run_timer_softirq+0x52/0xb0
[  626.830865]  ? rcu_read_lock_sched_held+0x14f/0x180
[  626.835883]  __do_softirq+0x308/0xb7e
[  626.839688]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  626.844451]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  626.849555]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  626.855006]  ? trace_hardirqs_on+0x310/0x310
[  626.859418]  ? schedule+0x108/0x460
[  626.863065]  ? trace_hardirqs_off+0xb8/0x310
[  626.867503]  ? smpboot_thread_fn+0x68b/0xa00
[  626.871914]  ? trace_hardirqs_on+0x310/0x310
[  626.876336]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  626.881870]  ? check_preemption_disabled+0x48/0x280
[  626.886883]  ? takeover_tasklets+0xa90/0xa90
[  626.891292]  run_ksoftirqd+0x5e/0x100
[  626.895090]  smpboot_thread_fn+0x68b/0xa00
[  626.899325]  ? sort_range+0x30/0x30
[  626.902949]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  626.908050]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  626.913585]  ? __kthread_parkme+0xfb/0x1a0
[  626.917826]  ? sort_range+0x30/0x30
[  626.921456]  kthread+0x35a/0x440
[  626.924824]  ? kthread_stop+0x900/0x900
[  626.928813]  ret_from_fork+0x3a/0x50
[  626.932546] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  626.932631] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  626.939555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  626.939561] Call Trace:
[  626.939567]  <IRQ>
[  626.939584]  dump_stack+0x244/0x39d
[  626.939602]  ? dump_stack_print_info.cold.1+0x20/0x20
[  626.946124] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  626.955431]  warn_alloc.cold.116+0xb7/0x1bd
[  626.957981] ksoftirqd/0 cpuset=/ mems_allowed=0
[  626.960145]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  626.993040]  ? lock_downgrade+0x900/0x900
[  626.997194]  ? trace_hardirqs_off+0xb8/0x310
[  627.001609]  ? trace_hardirqs_off+0xb8/0x310
[  627.006041]  __alloc_pages_slowpath+0x2651/0x2de0
[  627.010915]  ? warn_alloc+0x120/0x120
[  627.014726]  ? print_usage_bug+0xc0/0xc0
[  627.018794]  ? warn_alloc+0x120/0x120
[  627.022597]  ? warn_alloc+0x120/0x120
[  627.026396]  ? print_usage_bug+0xc0/0xc0
[  627.030470]  ? kvm_clock_read+0x18/0x30
[  627.034441]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  627.039473]  ? print_usage_bug+0xc0/0xc0
[  627.043536]  ? __lock_acquire+0x62f/0x4c20
[  627.047776]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  627.053312]  ? should_fail+0x22d/0xd01
[  627.057219]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  627.062317]  ? __lock_acquire+0x62f/0x4c20
[  627.066557]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  627.071661]  ? __lock_acquire+0x62f/0x4c20
[  627.075892]  ? should_fail+0x22d/0xd01
[  627.079791]  ? mark_held_locks+0x130/0x130
[  627.084030]  ? mark_held_locks+0x130/0x130
[  627.088289]  ? zap_class+0x640/0x640
[  627.092002]  ? print_usage_bug+0xc0/0xc0
[  627.096064]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  627.101600]  ? check_preemption_disabled+0x48/0x280
[  627.106624]  ? __lock_is_held+0xb5/0x140
[  627.110716]  __alloc_pages_nodemask+0xad8/0xea0
[  627.115390]  ? zap_class+0x640/0x640
[  627.119109]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  627.124140]  ? find_held_lock+0x36/0x1c0
[  627.128210]  ? ____cache_alloc_node+0x1c7/0x1e0
[  627.132897]  ? lock_downgrade+0x900/0x900
[  627.137052]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  627.142608]  cache_grow_begin+0xa5/0x8c0
[  627.146669]  ? do_raw_spin_unlock+0xa7/0x330
[  627.151083]  fallback_alloc+0x204/0x2e0
[  627.155062]  ____cache_alloc_node+0x1c7/0x1e0
[  627.159562]  kmem_cache_alloc_node+0xe3/0x730
[  627.164068]  ? ipv6_get_ifaddr+0x42e/0x620
[  627.168311]  __alloc_skb+0x119/0x770
[  627.172022]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  627.177302]  ? netdev_alloc_frag+0x1f0/0x1f0
[  627.181748]  ? lock_downgrade+0x900/0x900
[  627.185905]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  627.191440]  ? refcount_sub_and_test_checked+0x203/0x310
[  627.196892]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  627.202344]  ? addrconf_rs_timer+0x690/0x690
[  627.206798]  ndisc_alloc_skb+0x144/0x340
[  627.210863]  ndisc_send_rs+0x331/0x6e0
[  627.214786]  addrconf_rs_timer+0x314/0x690
[  627.219025]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  627.223289]  call_timer_fn+0x272/0x920
[  627.227190]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  627.231435]  ? process_timeout+0x40/0x40
[  627.235520]  ? mark_held_locks+0xc7/0x130
[  627.239683]  ? _raw_spin_unlock_irq+0x27/0x80
[  627.244178]  ? _raw_spin_unlock_irq+0x27/0x80
[  627.248668]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  627.252906]  ? lockdep_hardirqs_on+0x296/0x5b0
[  627.257490]  ? trace_hardirqs_on+0xbd/0x310
[  627.261813]  ? kasan_check_read+0x11/0x20
[  627.265956]  ? __run_timers+0x7da/0xc70
[  627.269934]  ? trace_hardirqs_off_caller+0x310/0x310
[  627.275050]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  627.279284]  __run_timers+0x7e5/0xc70
[  627.283095]  ? timer_fixup_init+0x70/0x70
[  627.287261]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  627.292285]  ? zap_class+0x640/0x640
[  627.296017]  ? print_usage_bug+0xc0/0xc0
[  627.300104]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  627.305303]  ? find_held_lock+0x36/0x1c0
[  627.309368]  ? zap_class+0x640/0x640
[  627.313091]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  627.318640]  ? check_preemption_disabled+0x48/0x280
[  627.323683]  ? __lock_is_held+0xb5/0x140
[  627.327754]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  627.333293]  ? check_preemption_disabled+0x48/0x280
[  627.338308]  run_timer_softirq+0x52/0xb0
[  627.342368]  ? rcu_read_lock_sched_held+0x14f/0x180
[  627.347388]  __do_softirq+0x308/0xb7e
[  627.351206]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  627.355698]  ? lock_downgrade+0x900/0x900
[  627.359869]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  627.364983]  ? pvclock_read_flags+0x160/0x160
[  627.369495]  ? lapic_next_event+0x5a/0x90
[  627.373665]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  627.379207]  ? kvm_clock_read+0x18/0x30
[  627.383178]  ? kvm_sched_clock_read+0x9/0x20
[  627.387592]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  627.393151]  ? check_preemption_disabled+0x48/0x280
[  627.398174]  irq_exit+0x17f/0x1c0
[  627.401630]  smp_apic_timer_interrupt+0x1cb/0x760
[  627.406468]  ? smp_reschedule_interrupt+0x109/0x650
[  627.411487]  ? smp_call_function_single_interrupt+0x650/0x650
[  627.417382]  ? interrupt_entry+0xb5/0xc0
[  627.421444]  ? trace_hardirqs_off_caller+0xbb/0x310
[  627.426457]  ? trace_hardirqs_off_caller+0xbb/0x310
[  627.431471]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  627.436324]  ? trace_hardirqs_on_caller+0x310/0x310
[  627.441338]  ? trace_hardirqs_on_caller+0x310/0x310
[  627.446356]  ? task_prio+0x50/0x50
[  627.449910]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  627.455475]  ? check_preemption_disabled+0x48/0x280
[  627.460499]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  627.465352]  apic_timer_interrupt+0xf/0x20
[  627.469592]  </IRQ>
[  627.471830] RIP: 0010:dump_stack+0x358/0x39d
[  627.476242] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  627.495148] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  627.502853] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  627.510117] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  627.517384] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  627.524667] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  627.531930] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  627.539217]  ? dump_stack+0x34f/0x39d
[  627.543038]  ? dump_stack_print_info.cold.1+0x20/0x20
[  627.548241]  ? mark_held_locks+0x130/0x130
[  627.552475]  ? mark_held_locks+0x130/0x130
[  627.556716]  dump_header+0x27b/0xf72
[  627.560450]  ? pagefault_out_of_memory+0x197/0x197
[  627.565393]  ? __lock_acquire+0x62f/0x4c20
[  627.569629]  ? percpu_ref_get_many+0x240/0x240
[  627.574215]  ? print_usage_bug+0xc0/0xc0
[  627.578285]  ? zap_class+0x640/0x640
[  627.582000]  ? print_usage_bug+0xc0/0xc0
[  627.586060]  ? print_usage_bug+0xc0/0xc0
[  627.590119]  ? zap_class+0x640/0x640
[  627.593837]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  627.599400]  ? find_held_lock+0x36/0x1c0
[  627.603478]  ? mark_held_locks+0xc7/0x130
[  627.607628]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  627.612751]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  627.617888]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  627.622473]  ? trace_hardirqs_on+0xbd/0x310
[  627.626820]  ? kasan_check_read+0x11/0x20
[  627.630967]  ? ___ratelimit+0x3b4/0x672
[  627.634955]  ? trace_hardirqs_off_caller+0x310/0x310
[  627.640060]  ? trace_hardirqs_on+0x310/0x310
[  627.644466]  ? lock_downgrade+0x900/0x900
[  627.648618]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  627.653744]  ? ___ratelimit+0x3b9/0x672
[  627.657749]  ? idr_get_free+0xf70/0xf70
[  627.661723]  ? find_held_lock+0x36/0x1c0
[  627.665800]  oom_kill_process.cold.27+0x10/0x903
[  627.670560]  ? zap_class+0x640/0x640
[  627.674286]  ? check_preemption_disabled+0x48/0x280
[  627.679317]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  627.684247]  ? kasan_check_read+0x11/0x20
[  627.688413]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  627.693688]  ? oom_evaluate_task+0x540/0x540
[  627.698120]  ? find_held_lock+0x36/0x1c0
[  627.702187]  ? out_of_memory+0x974/0x1430
[  627.706339]  ? lock_downgrade+0x900/0x900
[  627.710488]  ? check_preemption_disabled+0x48/0x280
[  627.715506]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  627.720434]  ? kasan_check_read+0x11/0x20
[  627.724584]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  627.729873]  ? rcu_softirq_qs+0x20/0x20
[  627.733850]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  627.739385]  ? oom_evaluate_task+0x302/0x540
[  627.743801]  out_of_memory+0xa84/0x1430
[  627.747792]  ? oom_killer_disable+0x3a0/0x3a0
[  627.752289]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  627.757234]  ? __ww_mutex_check_waiters+0x160/0x160
[  627.762268]  __alloc_pages_slowpath+0x232c/0x2de0
[  627.767153]  ? warn_alloc+0x120/0x120
[  627.770970]  ? mark_held_locks+0x130/0x130
[  627.775236]  ? find_get_entry+0xaae/0x1120
[  627.779479]  ? filemap_map_pages+0x1a20/0x1a20
[  627.784061]  ? zap_class+0x640/0x640
[  627.787784]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  627.793318]  ? check_preemption_disabled+0x48/0x280
[  627.798334]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  627.803874]  ? should_fail+0x22d/0xd01
[  627.807769]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  627.812877]  ? zap_class+0x640/0x640
[  627.816615]  ? __lock_is_held+0xb5/0x140
[  627.820682]  ? mark_held_locks+0x130/0x130
[  627.824932]  ? lock_release+0xa00/0xa00
[  627.828907]  ? perf_trace_sched_process_exec+0x860/0x860
[  627.834358]  ? xa_load+0x2ba/0x460
[  627.837903]  ? lock_downgrade+0x900/0x900
[  627.842054]  ? __might_sleep+0x95/0x190
[  627.846031]  __alloc_pages_nodemask+0xad8/0xea0
[  627.850706]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  627.855760]  ? __page_cache_alloc+0x191/0x5c0
[  627.860254]  ? xa_load+0x2e1/0x460
[  627.863796]  ? xa_clear_mark+0x40/0x40
[  627.867687]  ? zap_class+0x640/0x640
[  627.871405]  ? zap_class+0x640/0x640
[  627.875113]  ? zap_class+0x640/0x640
[  627.878827]  ? __do_page_cache_readahead+0x663/0x810
[  627.883965]  ? find_held_lock+0x36/0x1c0
[  627.888032]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  627.893577]  alloc_pages_current+0x173/0x350
[  627.897988]  __page_cache_alloc+0x38c/0x5c0
[  627.902316]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  627.907267]  ? kasan_check_read+0x11/0x20
[  627.911413]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  627.916695]  ? generic_perform_write+0x6a0/0x6a0
[  627.921456]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  627.926992]  ? check_preemption_disabled+0x48/0x280
[  627.932017]  filemap_fault+0x1595/0x25f0
[  627.936111]  ? __lock_page_or_retry+0xa00/0xa00
[  627.940783]  ? mark_held_locks+0x130/0x130
[  627.945032]  ? filemap_map_pages+0xd6b/0x1a20
[  627.949542]  ? lock_downgrade+0x900/0x900
[  627.953689]  ? check_preemption_disabled+0x48/0x280
[  627.958709]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  627.963638]  ? kasan_check_read+0x11/0x20
[  627.967787]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  627.973066]  ? rcu_softirq_qs+0x20/0x20
[  627.977071]  ? filemap_map_pages+0xd92/0x1a20
[  627.981570]  ? print_usage_bug+0xc0/0xc0
[  627.985639]  ? find_get_entries_tag+0x1400/0x1400
[  627.990479]  ? __kasan_slab_free+0x102/0x150
[  627.994885]  ? kasan_slab_free+0xe/0x10
[  627.998855]  ? kmem_cache_free+0x83/0x290
[  628.003003]  ? __sigqueue_free.part.29+0x74/0x90
[  628.007781]  ? lock_acquire+0x1ed/0x520
[  628.011764]  ? ext4_filemap_fault+0x7a/0xad
[  628.016095]  ? lock_release+0xa00/0xa00
[  628.020066]  ? perf_trace_sched_process_exec+0x860/0x860
[  628.025520]  ? print_usage_bug+0xc0/0xc0
[  628.029588]  ? print_usage_bug+0xc0/0xc0
[  628.033658]  ? down_read+0x8d/0x120
[  628.037285]  ? ext4_filemap_fault+0x7a/0xad
[  628.041621]  ? __down_interruptible+0x700/0x700
[  628.046332]  ext4_filemap_fault+0x82/0xad
[  628.050479]  __do_fault+0x100/0x6b0
[  628.054115]  ? pmd_devmap_trans_unstable+0x220/0x220
[  628.059217]  ? mark_held_locks+0x130/0x130
[  628.063449]  ? mark_held_locks+0x130/0x130
[  628.067683]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  628.073243]  ? rcu_pm_notify+0xc0/0xc0
[  628.077140]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  628.082680]  __handle_mm_fault+0x3ea0/0x5be0
[  628.087108]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  628.091950]  ? _raw_spin_unlock_irq+0x27/0x80
[  628.096451]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  628.101031]  ? trace_hardirqs_on+0xbd/0x310
[  628.105348]  ? kasan_check_read+0x11/0x20
[  628.109511]  ? __set_current_blocked+0xdf/0x120
[  628.114177]  ? trace_hardirqs_off_caller+0x310/0x310
[  628.119307]  ? zap_class+0x640/0x640
[  628.123022]  ? zap_class+0x640/0x640
[  628.126750]  ? find_held_lock+0x36/0x1c0
[  628.130823]  ? handle_mm_fault+0x42a/0xc70
[  628.135060]  ? lock_downgrade+0x900/0x900
[  628.139209]  ? check_preemption_disabled+0x48/0x280
[  628.144226]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  628.149158]  ? kasan_check_read+0x11/0x20
[  628.153299]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  628.158585]  ? rcu_softirq_qs+0x20/0x20
[  628.162559]  ? trace_hardirqs_off_caller+0x310/0x310
[  628.167660]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  628.173197]  ? check_preemption_disabled+0x48/0x280
[  628.178224]  handle_mm_fault+0x54f/0xc70
[  628.182305]  ? __handle_mm_fault+0x5be0/0x5be0
[  628.186890]  ? find_vma+0x34/0x190
[  628.190436]  __do_page_fault+0x5e8/0xe60
[  628.194516]  ? exit_to_usermode_loop+0x1f4/0x380
[  628.199284]  do_page_fault+0xf2/0x7e0
[  628.203087]  ? vmalloc_sync_all+0x30/0x30
[  628.207236]  ? error_entry+0x70/0xd0
[  628.210958]  ? trace_hardirqs_off_caller+0xbb/0x310
[  628.216006]  ? trace_hardirqs_on_caller+0xc0/0x310
[  628.220936]  ? syscall_return_slowpath+0x5e0/0x5e0
[  628.225865]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  628.230720]  ? trace_hardirqs_on_caller+0x310/0x310
[  628.235793]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  628.241267]  ? prepare_exit_to_usermode+0x291/0x3b0
[  628.246287]  ? page_fault+0x8/0x30
[  628.249828]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  628.254684]  ? page_fault+0x8/0x30
[  628.258222]  page_fault+0x1e/0x30
[  628.261671] RIP: 0033:0x45db60
[  628.264870] Code: Bad RIP value.
[  628.268226] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  628.273587] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  628.280867] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  628.288133] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  628.295395] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  628.302660] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  628.309980] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  628.309985] warn_alloc_show_mem: 1 callbacks suppressed
[  628.309991] Mem-Info:
[  628.316825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  628.322191] active_anon:42936 inactive_anon:306 isolated_anon:0
[  628.322191]  active_file:13 inactive_file:13 isolated_file:0
[  628.322191]  unevictable:0 dirty:0 writeback:0 unstable:0
[  628.322191]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  628.322191]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  628.322191]  free:13785 free_pcp:492 free_cma:0
[  628.324560] Call Trace:
[  628.333956] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  628.366716]  dump_stack+0x244/0x39d
[  628.369279] 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
[  628.396862]  ? dump_stack_print_info.cold.1+0x20/0x20
[  628.400463] lowmem_reserve[]: 0 2818 6321 6321
[  628.426576]  warn_alloc.cold.116+0xb7/0x1bd
[  628.431729] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  628.436326]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  628.440618] lowmem_reserve[]: 0 0 3503 3503
[  628.467788]  ? lock_downgrade+0x900/0x900
[  628.472599] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  628.476920]  ? trace_hardirqs_off+0xb8/0x310
[  628.481034] lowmem_reserve[]: 0 0 0 0
[  628.510175]  ? trace_hardirqs_off+0xb8/0x310
[  628.514552] 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
[  628.518347]  __alloc_pages_slowpath+0x2651/0x2de0
[  628.522725] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  628.536273]  ? warn_alloc+0x120/0x120
[  628.541071] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  628.556677]  ? print_usage_bug+0xc0/0xc0
[  628.560482] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  628.575639]  ? warn_alloc+0x120/0x120
[  628.579679] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  628.588516]  ? warn_alloc+0x120/0x120
[  628.592289] 380 total pagecache pages
[  628.600852]  ? print_usage_bug+0xc0/0xc0
[  628.604650] 0 pages in swap cache
[  628.608433]  ? print_usage_bug+0xc0/0xc0
[  628.612469] Swap cache stats: add 0, delete 0, find 0/0
[  628.615915]  ? __lock_acquire+0x62f/0x4c20
[  628.619953] Free swap  = 0kB
[  628.625323]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  628.629525] Total swap = 0kB
[  628.632536]  ? should_fail+0x22d/0xd01
[  628.638059] 1965979 pages RAM
[  628.641071]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  628.644928] 0 pages HighMem/MovableOnly
[  628.648021]  ? __lock_acquire+0x62f/0x4c20
[  628.653099] 342854 pages reserved
[  628.657063]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  628.661272] 0 pages cma reserved
[  628.664732]  ? __lock_acquire+0x62f/0x4c20
[  628.669876] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  628.673169]  ? should_fail+0x22d/0xd01
[  628.673185]  ? find_held_lock+0x36/0x1c0
[  628.677456] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  628.683882]  ? mark_held_locks+0x130/0x130
[  628.688260] syz-fuzzer cpuset=/ mems_allowed=0
[  628.692309]  ? mark_held_locks+0x130/0x130
[  628.715533]  ? zap_class+0x640/0x640
[  628.719264]  ? zap_class+0x640/0x640
[  628.723002]  ? print_usage_bug+0xc0/0xc0
[  628.727075]  ? do_raw_spin_unlock+0xa7/0x330
[  628.731512]  ? zap_class+0x640/0x640
[  628.735238]  ? print_usage_bug+0xc0/0xc0
[  628.739296]  ? wq_watchdog_touch+0x9c/0xfe
[  628.743532]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  628.749082]  ? check_preemption_disabled+0x48/0x280
[  628.754110]  ? __lock_is_held+0xb5/0x140
[  628.758175]  __alloc_pages_nodemask+0xad8/0xea0
[  628.762841]  ? zap_class+0x640/0x640
[  628.766571]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  628.771608]  ? find_held_lock+0x36/0x1c0
[  628.775691]  ? ____cache_alloc_node+0x1c7/0x1e0
[  628.780357]  ? lock_downgrade+0x900/0x900
[  628.784513]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  628.790053]  cache_grow_begin+0xa5/0x8c0
[  628.794109]  ? do_raw_spin_unlock+0xa7/0x330
[  628.798521]  fallback_alloc+0x204/0x2e0
[  628.802526]  ____cache_alloc_node+0x1c7/0x1e0
[  628.807042]  kmem_cache_alloc_node+0xe3/0x730
[  628.811540]  ? ipv6_get_ifaddr+0x42e/0x620
[  628.815799]  __alloc_skb+0x119/0x770
[  628.819511]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  628.824793]  ? netdev_alloc_frag+0x1f0/0x1f0
[  628.829201]  ? lock_downgrade+0x900/0x900
[  628.833356]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  628.838889]  ? refcount_sub_and_test_checked+0x203/0x310
[  628.844376]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  628.849825]  ? addrconf_rs_timer+0x690/0x690
[  628.854247]  ndisc_alloc_skb+0x144/0x340
[  628.858313]  ndisc_send_rs+0x331/0x6e0
[  628.862220]  addrconf_rs_timer+0x314/0x690
[  628.866504]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  628.870767]  call_timer_fn+0x272/0x920
[  628.874669]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  628.878935]  ? process_timeout+0x40/0x40
[  628.883019]  ? __run_timers+0x7da/0xc70
[  628.886992]  ? _raw_spin_unlock_irq+0x27/0x80
[  628.891514]  ? _raw_spin_unlock_irq+0x27/0x80
[  628.896005]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  628.900240]  ? lockdep_hardirqs_on+0x296/0x5b0
[  628.904822]  ? trace_hardirqs_on+0xbd/0x310
[  628.909139]  ? kasan_check_read+0x11/0x20
[  628.913285]  ? __run_timers+0x7da/0xc70
[  628.917258]  ? trace_hardirqs_off_caller+0x310/0x310
[  628.922395]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  628.926637]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  628.930867]  __run_timers+0x7e5/0xc70
[  628.934703]  ? timer_fixup_init+0x70/0x70
[  628.938877]  ? _raw_spin_unlock_irq+0x27/0x80
[  628.943370]  ? _raw_spin_unlock_irq+0x27/0x80
[  628.947883]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  628.952478]  ? trace_hardirqs_on+0xbd/0x310
[  628.956798]  ? kasan_check_read+0x11/0x20
[  628.960945]  ? finish_task_switch+0x1f4/0x910
[  628.965441]  ? trace_hardirqs_off_caller+0x310/0x310
[  628.970541]  ? compat_start_thread+0x80/0x80
[  628.974983]  ? pvclock_read_flags+0x160/0x160
[  628.979473]  ? __switch_to_asm+0x34/0x70
[  628.983537]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  628.989077]  ? check_preemption_disabled+0x48/0x280
[  628.994103]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  628.999662]  ? rcu_pm_notify+0xc0/0xc0
[  629.003547]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  629.009083]  ? check_preemption_disabled+0x48/0x280
[  629.014103]  run_timer_softirq+0x52/0xb0
[  629.018165]  ? rcu_read_lock_sched_held+0x14f/0x180
[  629.023185]  __do_softirq+0x308/0xb7e
[  629.026990]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  629.031762]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  629.036869]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  629.042321]  ? trace_hardirqs_on+0x310/0x310
[  629.046746]  ? schedule+0x108/0x460
[  629.050393]  ? trace_hardirqs_off+0xb8/0x310
[  629.054803]  ? smpboot_thread_fn+0x68b/0xa00
[  629.059211]  ? trace_hardirqs_on+0x310/0x310
[  629.063621]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  629.069157]  ? check_preemption_disabled+0x48/0x280
[  629.074208]  ? takeover_tasklets+0xa90/0xa90
[  629.078616]  run_ksoftirqd+0x5e/0x100
[  629.082416]  smpboot_thread_fn+0x68b/0xa00
[  629.086653]  ? sort_range+0x30/0x30
[  629.090279]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  629.095384]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  629.100934]  ? __kthread_parkme+0xfb/0x1a0
[  629.105217]  ? sort_range+0x30/0x30
[  629.108866]  kthread+0x35a/0x440
[  629.112263]  ? kthread_stop+0x900/0x900
[  629.116252]  ret_from_fork+0x3a/0x50
[  629.119989] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  629.120079] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  629.127009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  629.127018] Call Trace:
[  629.133611] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  629.142835]  <IRQ>
[  629.145410] ksoftirqd/0 cpuset=/ mems_allowed=0
[  629.155728]  dump_stack+0x244/0x39d
[  629.166136]  ? dump_stack_print_info.cold.1+0x20/0x20
[  629.171342]  warn_alloc.cold.116+0xb7/0x1bd
[  629.175668]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  629.180512]  ? lock_downgrade+0x900/0x900
[  629.184681]  ? trace_hardirqs_off+0xb8/0x310
[  629.189091]  ? trace_hardirqs_off+0xb8/0x310
[  629.193506]  __alloc_pages_slowpath+0x2651/0x2de0
[  629.198384]  ? warn_alloc+0x120/0x120
[  629.202191]  ? print_usage_bug+0xc0/0xc0
[  629.206260]  ? warn_alloc+0x120/0x120
[  629.210067]  ? warn_alloc+0x120/0x120
[  629.213866]  ? print_usage_bug+0xc0/0xc0
[  629.217935]  ? print_usage_bug+0xc0/0xc0
[  629.222000]  ? __lock_acquire+0x62f/0x4c20
[  629.226241]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  629.231780]  ? should_fail+0x22d/0xd01
[  629.235672]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  629.240777]  ? __lock_acquire+0x62f/0x4c20
[  629.245018]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  629.250120]  ? __lock_acquire+0x62f/0x4c20
[  629.254357]  ? should_fail+0x22d/0xd01
[  629.258244]  ? find_held_lock+0x36/0x1c0
[  629.262331]  ? mark_held_locks+0x130/0x130
[  629.266568]  ? mark_held_locks+0x130/0x130
[  629.270817]  ? zap_class+0x640/0x640
[  629.274542]  ? zap_class+0x640/0x640
[  629.278262]  ? print_usage_bug+0xc0/0xc0
[  629.282319]  ? do_raw_spin_unlock+0xa7/0x330
[  629.286726]  ? zap_class+0x640/0x640
[  629.290449]  ? print_usage_bug+0xc0/0xc0
[  629.294508]  ? wq_watchdog_touch+0x9c/0xfe
[  629.298751]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  629.304288]  ? check_preemption_disabled+0x48/0x280
[  629.309315]  ? __lock_is_held+0xb5/0x140
[  629.313378]  __alloc_pages_nodemask+0xad8/0xea0
[  629.318045]  ? zap_class+0x640/0x640
[  629.321773]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  629.326845]  ? find_held_lock+0x36/0x1c0
[  629.330916]  ? ____cache_alloc_node+0x1c7/0x1e0
[  629.335581]  ? lock_downgrade+0x900/0x900
[  629.339743]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  629.345289]  cache_grow_begin+0xa5/0x8c0
[  629.349344]  ? do_raw_spin_unlock+0xa7/0x330
[  629.353766]  fallback_alloc+0x204/0x2e0
[  629.357775]  ____cache_alloc_node+0x1c7/0x1e0
[  629.362282]  kmem_cache_alloc_node+0xe3/0x730
[  629.366778]  ? ipv6_get_ifaddr+0x42e/0x620
[  629.371035]  __alloc_skb+0x119/0x770
[  629.374771]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  629.380056]  ? netdev_alloc_frag+0x1f0/0x1f0
[  629.384465]  ? lock_downgrade+0x900/0x900
[  629.388621]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  629.394156]  ? refcount_sub_and_test_checked+0x203/0x310
[  629.399621]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  629.405069]  ? addrconf_rs_timer+0x690/0x690
[  629.409485]  ndisc_alloc_skb+0x144/0x340
[  629.413551]  ndisc_send_rs+0x331/0x6e0
[  629.417441]  addrconf_rs_timer+0x314/0x690
[  629.421686]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  629.425929]  call_timer_fn+0x272/0x920
[  629.429817]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  629.434048]  ? process_timeout+0x40/0x40
[  629.438119]  ? mark_held_locks+0xc7/0x130
[  629.442287]  ? _raw_spin_unlock_irq+0x27/0x80
[  629.446783]  ? _raw_spin_unlock_irq+0x27/0x80
[  629.451284]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  629.455518]  ? lockdep_hardirqs_on+0x296/0x5b0
[  629.460127]  ? trace_hardirqs_on+0xbd/0x310
[  629.464466]  ? kasan_check_read+0x11/0x20
[  629.468613]  ? __run_timers+0x7da/0xc70
[  629.472590]  ? trace_hardirqs_off_caller+0x310/0x310
[  629.477701]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  629.481949]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  629.486176]  __run_timers+0x7e5/0xc70
[  629.489987]  ? timer_fixup_init+0x70/0x70
[  629.494138]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  629.499151]  ? zap_class+0x640/0x640
[  629.502866]  ? print_usage_bug+0xc0/0xc0
[  629.506927]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  629.512125]  ? find_held_lock+0x36/0x1c0
[  629.516220]  ? zap_class+0x640/0x640
[  629.519944]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  629.525486]  ? check_preemption_disabled+0x48/0x280
[  629.530527]  ? __lock_is_held+0xb5/0x140
[  629.534590]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  629.540130]  ? check_preemption_disabled+0x48/0x280
[  629.545168]  run_timer_softirq+0x52/0xb0
[  629.549230]  ? rcu_read_lock_sched_held+0x14f/0x180
[  629.554246]  __do_softirq+0x308/0xb7e
[  629.558054]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  629.562551]  ? lock_downgrade+0x900/0x900
[  629.566715]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  629.571846]  ? pvclock_read_flags+0x160/0x160
[  629.576341]  ? lapic_next_event+0x5a/0x90
[  629.580523]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  629.586068]  ? kvm_clock_read+0x18/0x30
[  629.590042]  ? kvm_sched_clock_read+0x9/0x20
[  629.594455]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  629.600054]  ? check_preemption_disabled+0x48/0x280
[  629.605075]  irq_exit+0x17f/0x1c0
[  629.608526]  smp_apic_timer_interrupt+0x1cb/0x760
[  629.613367]  ? smp_reschedule_interrupt+0x109/0x650
[  629.618381]  ? smp_call_function_single_interrupt+0x650/0x650
[  629.624268]  ? interrupt_entry+0xb5/0xc0
[  629.628327]  ? trace_hardirqs_off_caller+0xbb/0x310
[  629.633340]  ? trace_hardirqs_off_caller+0xbb/0x310
[  629.638353]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  629.643196]  ? trace_hardirqs_on_caller+0x310/0x310
[  629.648211]  ? trace_hardirqs_on_caller+0x310/0x310
[  629.653225]  ? task_prio+0x50/0x50
[  629.656786]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  629.662321]  ? check_preemption_disabled+0x48/0x280
[  629.667357]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  629.672207]  apic_timer_interrupt+0xf/0x20
[  629.676437]  </IRQ>
[  629.678675] RIP: 0010:dump_stack+0x358/0x39d
[  629.683083] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  629.701984] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  629.709689] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  629.716955] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  629.724221] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  629.731485] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  629.738760] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  629.746048]  ? dump_stack+0x34f/0x39d
[  629.749865]  ? dump_stack_print_info.cold.1+0x20/0x20
[  629.755055]  ? mark_held_locks+0x130/0x130
[  629.759288]  ? mark_held_locks+0x130/0x130
[  629.763524]  dump_header+0x27b/0xf72
[  629.767247]  ? pagefault_out_of_memory+0x197/0x197
[  629.772191]  ? __lock_acquire+0x62f/0x4c20
[  629.776427]  ? percpu_ref_get_many+0x240/0x240
[  629.781012]  ? print_usage_bug+0xc0/0xc0
[  629.785077]  ? zap_class+0x640/0x640
[  629.788838]  ? print_usage_bug+0xc0/0xc0
[  629.792894]  ? print_usage_bug+0xc0/0xc0
[  629.796954]  ? zap_class+0x640/0x640
[  629.800669]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  629.806211]  ? find_held_lock+0x36/0x1c0
[  629.810285]  ? mark_held_locks+0xc7/0x130
[  629.814434]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  629.819535]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  629.824641]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  629.829225]  ? trace_hardirqs_on+0xbd/0x310
[  629.833592]  ? kasan_check_read+0x11/0x20
[  629.837746]  ? ___ratelimit+0x3b4/0x672
[  629.841759]  ? trace_hardirqs_off_caller+0x310/0x310
[  629.846866]  ? trace_hardirqs_on+0x310/0x310
[  629.851292]  ? lock_downgrade+0x900/0x900
[  629.855459]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  629.860561]  ? ___ratelimit+0x3b9/0x672
[  629.864536]  ? idr_get_free+0xf70/0xf70
[  629.868509]  ? find_held_lock+0x36/0x1c0
[  629.872575]  oom_kill_process.cold.27+0x10/0x903
[  629.877328]  ? zap_class+0x640/0x640
[  629.881041]  ? check_preemption_disabled+0x48/0x280
[  629.886058]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  629.890988]  ? kasan_check_read+0x11/0x20
[  629.895131]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  629.900412]  ? oom_evaluate_task+0x540/0x540
[  629.904821]  ? find_held_lock+0x36/0x1c0
[  629.908910]  ? out_of_memory+0x974/0x1430
[  629.913057]  ? lock_downgrade+0x900/0x900
[  629.917203]  ? check_preemption_disabled+0x48/0x280
[  629.922218]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  629.927160]  ? kasan_check_read+0x11/0x20
[  629.931310]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  629.936583]  ? rcu_softirq_qs+0x20/0x20
[  629.940562]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  629.946095]  ? oom_evaluate_task+0x302/0x540
[  629.950518]  out_of_memory+0xa84/0x1430
[  629.954504]  ? oom_killer_disable+0x3a0/0x3a0
[  629.958998]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  629.963936]  ? __ww_mutex_check_waiters+0x160/0x160
[  629.968968]  __alloc_pages_slowpath+0x232c/0x2de0
[  629.973840]  ? warn_alloc+0x120/0x120
[  629.977638]  ? mark_held_locks+0x130/0x130
[  629.981877]  ? find_get_entry+0xaae/0x1120
[  629.986118]  ? filemap_map_pages+0x1a20/0x1a20
[  629.990722]  ? zap_class+0x640/0x640
[  629.994463]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  629.999996]  ? check_preemption_disabled+0x48/0x280
[  630.005008]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  630.010544]  ? should_fail+0x22d/0xd01
[  630.014449]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  630.019554]  ? zap_class+0x640/0x640
[  630.023321]  ? __lock_is_held+0xb5/0x140
[  630.027388]  ? mark_held_locks+0x130/0x130
[  630.031666]  ? lock_release+0xa00/0xa00
[  630.035670]  ? perf_trace_sched_process_exec+0x860/0x860
[  630.041117]  ? xa_load+0x2ba/0x460
[  630.044657]  ? lock_downgrade+0x900/0x900
[  630.048837]  ? __might_sleep+0x95/0x190
[  630.052829]  __alloc_pages_nodemask+0xad8/0xea0
[  630.057505]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  630.062520]  ? __page_cache_alloc+0x191/0x5c0
[  630.067009]  ? xa_load+0x2e1/0x460
[  630.070553]  ? xa_clear_mark+0x40/0x40
[  630.074448]  ? zap_class+0x640/0x640
[  630.078166]  ? zap_class+0x640/0x640
[  630.081876]  ? zap_class+0x640/0x640
[  630.085604]  ? __do_page_cache_readahead+0x663/0x810
[  630.090715]  ? find_held_lock+0x36/0x1c0
[  630.094792]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  630.100340]  alloc_pages_current+0x173/0x350
[  630.104764]  __page_cache_alloc+0x38c/0x5c0
[  630.109083]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  630.114011]  ? kasan_check_read+0x11/0x20
[  630.118161]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  630.123443]  ? generic_perform_write+0x6a0/0x6a0
[  630.128204]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  630.133751]  ? check_preemption_disabled+0x48/0x280
[  630.138790]  filemap_fault+0x1595/0x25f0
[  630.142864]  ? __lock_page_or_retry+0xa00/0xa00
[  630.147531]  ? mark_held_locks+0x130/0x130
[  630.151784]  ? filemap_map_pages+0xd6b/0x1a20
[  630.156300]  ? lock_downgrade+0x900/0x900
[  630.160452]  ? check_preemption_disabled+0x48/0x280
[  630.165472]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  630.170417]  ? kasan_check_read+0x11/0x20
[  630.174566]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  630.179840]  ? rcu_softirq_qs+0x20/0x20
[  630.183826]  ? filemap_map_pages+0xd92/0x1a20
[  630.188332]  ? print_usage_bug+0xc0/0xc0
[  630.192397]  ? find_get_entries_tag+0x1400/0x1400
[  630.197235]  ? __kasan_slab_free+0x102/0x150
[  630.201662]  ? kasan_slab_free+0xe/0x10
[  630.205653]  ? kmem_cache_free+0x83/0x290
[  630.209796]  ? __sigqueue_free.part.29+0x74/0x90
[  630.214565]  ? lock_acquire+0x1ed/0x520
[  630.218538]  ? ext4_filemap_fault+0x7a/0xad
[  630.222863]  ? lock_release+0xa00/0xa00
[  630.226834]  ? perf_trace_sched_process_exec+0x860/0x860
[  630.232291]  ? print_usage_bug+0xc0/0xc0
[  630.236356]  ? print_usage_bug+0xc0/0xc0
[  630.240426]  ? down_read+0x8d/0x120
[  630.244067]  ? ext4_filemap_fault+0x7a/0xad
[  630.248391]  ? __down_interruptible+0x700/0x700
[  630.253086]  ext4_filemap_fault+0x82/0xad
[  630.257243]  __do_fault+0x100/0x6b0
[  630.260875]  ? pmd_devmap_trans_unstable+0x220/0x220
[  630.265985]  ? mark_held_locks+0x130/0x130
[  630.270219]  ? mark_held_locks+0x130/0x130
[  630.274453]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  630.279997]  ? rcu_pm_notify+0xc0/0xc0
[  630.283896]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  630.289440]  __handle_mm_fault+0x3ea0/0x5be0
[  630.293873]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  630.298715]  ? _raw_spin_unlock_irq+0x27/0x80
[  630.303230]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  630.307820]  ? trace_hardirqs_on+0xbd/0x310
[  630.312173]  ? kasan_check_read+0x11/0x20
[  630.316317]  ? __set_current_blocked+0xdf/0x120
[  630.320987]  ? trace_hardirqs_off_caller+0x310/0x310
[  630.326102]  ? zap_class+0x640/0x640
[  630.329813]  ? zap_class+0x640/0x640
[  630.333537]  ? find_held_lock+0x36/0x1c0
[  630.337610]  ? handle_mm_fault+0x42a/0xc70
[  630.341848]  ? lock_downgrade+0x900/0x900
[  630.345994]  ? check_preemption_disabled+0x48/0x280
[  630.351014]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  630.355946]  ? kasan_check_read+0x11/0x20
[  630.360091]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  630.365381]  ? rcu_softirq_qs+0x20/0x20
[  630.369366]  ? trace_hardirqs_off_caller+0x310/0x310
[  630.374472]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  630.380010]  ? check_preemption_disabled+0x48/0x280
[  630.385029]  handle_mm_fault+0x54f/0xc70
[  630.389101]  ? __handle_mm_fault+0x5be0/0x5be0
[  630.393689]  ? find_vma+0x34/0x190
[  630.397236]  __do_page_fault+0x5e8/0xe60
[  630.401300]  ? exit_to_usermode_loop+0x1f4/0x380
[  630.406069]  do_page_fault+0xf2/0x7e0
[  630.409883]  ? vmalloc_sync_all+0x30/0x30
[  630.414032]  ? error_entry+0x70/0xd0
[  630.417767]  ? trace_hardirqs_off_caller+0xbb/0x310
[  630.422783]  ? trace_hardirqs_on_caller+0xc0/0x310
[  630.427708]  ? syscall_return_slowpath+0x5e0/0x5e0
[  630.432642]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  630.437484]  ? trace_hardirqs_on_caller+0x310/0x310
[  630.442499]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  630.447954]  ? prepare_exit_to_usermode+0x291/0x3b0
[  630.452986]  ? page_fault+0x8/0x30
[  630.456527]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  630.461373]  ? page_fault+0x8/0x30
[  630.464915]  page_fault+0x1e/0x30
[  630.468369] RIP: 0033:0x45db60
[  630.471571] Code: Bad RIP value.
[  630.474963] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  630.480358] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  630.487641] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  630.494934] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  630.502202] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  630.509469] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  630.516771] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  630.516777] warn_alloc_show_mem: 1 callbacks suppressed
[  630.516784] Mem-Info:
[  630.523614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  630.528994] active_anon:42936 inactive_anon:306 isolated_anon:0
[  630.528994]  active_file:13 inactive_file:13 isolated_file:0
[  630.528994]  unevictable:0 dirty:0 writeback:0 unstable:0
[  630.528994]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  630.528994]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  630.528994]  free:13785 free_pcp:492 free_cma:0
[  630.531365] Call Trace:
[  630.540755] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  630.573937]  dump_stack+0x244/0x39d
[  630.576498] 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
[  630.604092]  ? dump_stack_print_info.cold.1+0x20/0x20
[  630.607692] lowmem_reserve[]: 0 2818 6321 6321
[  630.633810]  warn_alloc.cold.116+0xb7/0x1bd
[  630.638968] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  630.643538]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  630.647829] lowmem_reserve[]: 0 0 3503 3503
[  630.674981]  ? lock_downgrade+0x900/0x900
[  630.679800] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  630.684118]  ? trace_hardirqs_off+0xb8/0x310
[  630.688691] lowmem_reserve[]: 0 0 0 0
[  630.717841]  ? trace_hardirqs_off+0xb8/0x310
[  630.722219] 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
[  630.726020]  __alloc_pages_slowpath+0x2651/0x2de0
[  630.730395] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  630.743966]  ? warn_alloc+0x120/0x120
[  630.748760] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  630.763939]  ? print_usage_bug+0xc0/0xc0
[  630.767722] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  630.782886]  ? warn_alloc+0x120/0x120
[  630.786928] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  630.795756]  ? warn_alloc+0x120/0x120
[  630.799535] 380 total pagecache pages
[  630.808103]  ? print_usage_bug+0xc0/0xc0
[  630.811887] 0 pages in swap cache
[  630.815677]  ? print_usage_bug+0xc0/0xc0
[  630.819714] Swap cache stats: add 0, delete 0, find 0/0
[  630.823157]  ? __lock_acquire+0x62f/0x4c20
[  630.827200] Free swap  = 0kB
[  630.832586]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  630.836790] Total swap = 0kB
[  630.839819]  ? should_fail+0x22d/0xd01
[  630.845337] 1965979 pages RAM
[  630.848375]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  630.852235] 0 pages HighMem/MovableOnly
[  630.855332]  ? __lock_acquire+0x62f/0x4c20
[  630.860410] 342854 pages reserved
[  630.864378]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  630.868595] 0 pages cma reserved
[  630.872040]  ? __lock_acquire+0x62f/0x4c20
[  630.877178] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  630.880468]  ? should_fail+0x22d/0xd01
[  630.880483]  ? find_held_lock+0x36/0x1c0
[  630.880505]  ? mark_held_locks+0x130/0x130
[  630.884795] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  630.891207]  ? mark_held_locks+0x130/0x130
[  630.895077] syz-fuzzer cpuset=/ mems_allowed=0
[  630.899140]  ? zap_class+0x640/0x640
[  630.926044]  ? mark_held_locks+0xc7/0x130
[  630.930187]  ? do_raw_spin_unlock+0xa7/0x330
[  630.934592]  ? zap_class+0x640/0x640
[  630.938303]  ? print_usage_bug+0xc0/0xc0
[  630.942385]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  630.947939]  ? check_preemption_disabled+0x48/0x280
[  630.952964]  ? __lock_is_held+0xb5/0x140
[  630.957030]  __alloc_pages_nodemask+0xad8/0xea0
[  630.961697]  ? zap_class+0x640/0x640
[  630.965439]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  630.970481]  ? find_held_lock+0x36/0x1c0
[  630.974551]  ? ____cache_alloc_node+0x1c7/0x1e0
[  630.979221]  ? lock_downgrade+0x900/0x900
[  630.983371]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  630.988933]  cache_grow_begin+0xa5/0x8c0
[  630.992994]  ? do_raw_spin_unlock+0xa7/0x330
[  630.997409]  fallback_alloc+0x204/0x2e0
[  631.001387]  ____cache_alloc_node+0x1c7/0x1e0
[  631.005903]  kmem_cache_alloc_node+0xe3/0x730
[  631.010397]  ? ipv6_get_ifaddr+0x42e/0x620
[  631.014639]  __alloc_skb+0x119/0x770
[  631.018347]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  631.023623]  ? netdev_alloc_frag+0x1f0/0x1f0
[  631.028043]  ? lock_downgrade+0x900/0x900
[  631.032194]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  631.037730]  ? refcount_sub_and_test_checked+0x203/0x310
[  631.043198]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  631.048652]  ? addrconf_rs_timer+0x690/0x690
[  631.053087]  ndisc_alloc_skb+0x144/0x340
[  631.057178]  ndisc_send_rs+0x331/0x6e0
[  631.061073]  addrconf_rs_timer+0x314/0x690
[  631.065311]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  631.069556]  call_timer_fn+0x272/0x920
[  631.073459]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  631.077696]  ? process_timeout+0x40/0x40
[  631.081785]  ? __run_timers+0x7da/0xc70
[  631.085775]  ? _raw_spin_unlock_irq+0x27/0x80
[  631.090270]  ? _raw_spin_unlock_irq+0x27/0x80
[  631.094781]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  631.099020]  ? lockdep_hardirqs_on+0x296/0x5b0
[  631.103603]  ? trace_hardirqs_on+0xbd/0x310
[  631.107923]  ? kasan_check_read+0x11/0x20
[  631.112069]  ? __run_timers+0x7da/0xc70
[  631.116048]  ? trace_hardirqs_off_caller+0x310/0x310
[  631.121158]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  631.125408]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  631.129636]  __run_timers+0x7e5/0xc70
[  631.133458]  ? timer_fixup_init+0x70/0x70
[  631.137604]  ? _raw_spin_unlock_irq+0x27/0x80
[  631.142095]  ? _raw_spin_unlock_irq+0x27/0x80
[  631.146592]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  631.151175]  ? trace_hardirqs_on+0xbd/0x310
[  631.155495]  ? kasan_check_read+0x11/0x20
[  631.159642]  ? finish_task_switch+0x1f4/0x910
[  631.164153]  ? trace_hardirqs_off_caller+0x310/0x310
[  631.169255]  ? compat_start_thread+0x80/0x80
[  631.173686]  ? pvclock_read_flags+0x160/0x160
[  631.178181]  ? __switch_to_asm+0x34/0x70
[  631.182247]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  631.187789]  ? check_preemption_disabled+0x48/0x280
[  631.192820]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  631.198354]  ? rcu_pm_notify+0xc0/0xc0
[  631.202238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  631.207781]  ? check_preemption_disabled+0x48/0x280
[  631.212801]  run_timer_softirq+0x52/0xb0
[  631.216864]  ? rcu_read_lock_sched_held+0x14f/0x180
[  631.221881]  __do_softirq+0x308/0xb7e
[  631.225682]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  631.230441]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  631.235556]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  631.241006]  ? trace_hardirqs_on+0x310/0x310
[  631.245424]  ? schedule+0x108/0x460
[  631.249069]  ? trace_hardirqs_off+0xb8/0x310
[  631.253489]  ? smpboot_thread_fn+0x68b/0xa00
[  631.257910]  ? trace_hardirqs_on+0x310/0x310
[  631.262320]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  631.267859]  ? check_preemption_disabled+0x48/0x280
[  631.272879]  ? takeover_tasklets+0xa90/0xa90
[  631.277287]  run_ksoftirqd+0x5e/0x100
[  631.281085]  smpboot_thread_fn+0x68b/0xa00
[  631.285344]  ? sort_range+0x30/0x30
[  631.288969]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  631.294069]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  631.299605]  ? __kthread_parkme+0xfb/0x1a0
[  631.303843]  ? sort_range+0x30/0x30
[  631.307468]  kthread+0x35a/0x440
[  631.310836]  ? kthread_stop+0x900/0x900
[  631.314809]  ret_from_fork+0x3a/0x50
[  631.318541] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  631.318610] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  631.325563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  631.325568] Call Trace:
[  631.325575]  <IRQ>
[  631.325593]  dump_stack+0x244/0x39d
[  631.325626]  ? dump_stack_print_info.cold.1+0x20/0x20
[  631.332187] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  631.341457]  warn_alloc.cold.116+0xb7/0x1bd
[  631.344011] ksoftirqd/0 cpuset=/ mems_allowed=0
[  631.346177]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  631.379051]  ? lock_downgrade+0x900/0x900
[  631.383211]  ? trace_hardirqs_off+0xb8/0x310
[  631.387623]  ? trace_hardirqs_off+0xb8/0x310
[  631.392039]  __alloc_pages_slowpath+0x2651/0x2de0
[  631.396914]  ? warn_alloc+0x120/0x120
[  631.400716]  ? print_usage_bug+0xc0/0xc0
[  631.404785]  ? warn_alloc+0x120/0x120
[  631.408593]  ? warn_alloc+0x120/0x120
[  631.412395]  ? print_usage_bug+0xc0/0xc0
[  631.416476]  ? print_usage_bug+0xc0/0xc0
[  631.420539]  ? __lock_acquire+0x62f/0x4c20
[  631.424780]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  631.430319]  ? should_fail+0x22d/0xd01
[  631.434221]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  631.439325]  ? __lock_acquire+0x62f/0x4c20
[  631.443565]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  631.448669]  ? __lock_acquire+0x62f/0x4c20
[  631.452903]  ? should_fail+0x22d/0xd01
[  631.456788]  ? find_held_lock+0x36/0x1c0
[  631.460862]  ? mark_held_locks+0x130/0x130
[  631.465101]  ? mark_held_locks+0x130/0x130
[  631.469332]  ? zap_class+0x640/0x640
[  631.473048]  ? zap_class+0x640/0x640
[  631.476784]  ? print_usage_bug+0xc0/0xc0
[  631.480842]  ? do_raw_spin_unlock+0xa7/0x330
[  631.485253]  ? zap_class+0x640/0x640
[  631.488970]  ? print_usage_bug+0xc0/0xc0
[  631.493033]  ? wq_watchdog_touch+0x9c/0xfe
[  631.497274]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  631.502816]  ? check_preemption_disabled+0x48/0x280
[  631.507843]  ? __lock_is_held+0xb5/0x140
[  631.511907]  __alloc_pages_nodemask+0xad8/0xea0
[  631.516591]  ? zap_class+0x640/0x640
[  631.520324]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  631.525380]  ? find_held_lock+0x36/0x1c0
[  631.529467]  ? ____cache_alloc_node+0x1c7/0x1e0
[  631.534150]  ? lock_downgrade+0x900/0x900
[  631.538308]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  631.543850]  cache_grow_begin+0xa5/0x8c0
[  631.547908]  ? do_raw_spin_unlock+0xa7/0x330
[  631.552326]  fallback_alloc+0x204/0x2e0
[  631.556307]  ____cache_alloc_node+0x1c7/0x1e0
[  631.560806]  kmem_cache_alloc_node+0xe3/0x730
[  631.565301]  ? ipv6_get_ifaddr+0x42e/0x620
[  631.569560]  __alloc_skb+0x119/0x770
[  631.573276]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  631.578554]  ? netdev_alloc_frag+0x1f0/0x1f0
[  631.582961]  ? lock_downgrade+0x900/0x900
[  631.587118]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  631.592673]  ? refcount_sub_and_test_checked+0x203/0x310
[  631.598124]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  631.603571]  ? addrconf_rs_timer+0x690/0x690
[  631.607995]  ndisc_alloc_skb+0x144/0x340
[  631.612063]  ndisc_send_rs+0x331/0x6e0
[  631.615956]  addrconf_rs_timer+0x314/0x690
[  631.620199]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  631.624441]  call_timer_fn+0x272/0x920
[  631.628331]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  631.632566]  ? process_timeout+0x40/0x40
[  631.636647]  ? mark_held_locks+0xc7/0x130
[  631.640798]  ? _raw_spin_unlock_irq+0x27/0x80
[  631.645390]  ? _raw_spin_unlock_irq+0x27/0x80
[  631.649895]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  631.654132]  ? lockdep_hardirqs_on+0x296/0x5b0
[  631.658717]  ? trace_hardirqs_on+0xbd/0x310
[  631.663057]  ? kasan_check_read+0x11/0x20
[  631.667202]  ? __run_timers+0x7da/0xc70
[  631.671181]  ? trace_hardirqs_off_caller+0x310/0x310
[  631.676292]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  631.680532]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  631.684800]  __run_timers+0x7e5/0xc70
[  631.688613]  ? timer_fixup_init+0x70/0x70
[  631.692769]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  631.697787]  ? zap_class+0x640/0x640
[  631.701501]  ? print_usage_bug+0xc0/0xc0
[  631.705574]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  631.710773]  ? find_held_lock+0x36/0x1c0
[  631.714839]  ? zap_class+0x640/0x640
[  631.718563]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  631.724103]  ? check_preemption_disabled+0x48/0x280
[  631.729130]  ? __lock_is_held+0xb5/0x140
[  631.733188]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  631.738750]  ? check_preemption_disabled+0x48/0x280
[  631.743775]  run_timer_softirq+0x52/0xb0
[  631.747836]  ? rcu_read_lock_sched_held+0x14f/0x180
[  631.752853]  __do_softirq+0x308/0xb7e
[  631.756652]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  631.761141]  ? lock_downgrade+0x900/0x900
[  631.765292]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  631.770403]  ? pvclock_read_flags+0x160/0x160
[  631.774900]  ? lapic_next_event+0x5a/0x90
[  631.779047]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  631.784590]  ? kvm_clock_read+0x18/0x30
[  631.788579]  ? kvm_sched_clock_read+0x9/0x20
[  631.792990]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  631.798527]  ? check_preemption_disabled+0x48/0x280
[  631.803549]  irq_exit+0x17f/0x1c0
[  631.807004]  smp_apic_timer_interrupt+0x1cb/0x760
[  631.811844]  ? smp_reschedule_interrupt+0x109/0x650
[  631.816864]  ? smp_call_function_single_interrupt+0x650/0x650
[  631.822755]  ? interrupt_entry+0xb5/0xc0
[  631.826843]  ? trace_hardirqs_off_caller+0xbb/0x310
[  631.831857]  ? trace_hardirqs_off_caller+0xbb/0x310
[  631.836875]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  631.841717]  ? trace_hardirqs_on_caller+0x310/0x310
[  631.846745]  ? trace_hardirqs_on_caller+0x310/0x310
[  631.851763]  ? task_prio+0x50/0x50
[  631.855303]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  631.860856]  ? check_preemption_disabled+0x48/0x280
[  631.865891]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  631.870773]  apic_timer_interrupt+0xf/0x20
[  631.875003]  </IRQ>
[  631.877237] RIP: 0010:dump_stack+0x358/0x39d
[  631.881646] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  631.900540] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  631.908264] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  631.915544] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  631.922812] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  631.930094] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  631.937363] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  631.944649]  ? dump_stack+0x34f/0x39d
[  631.948464]  ? dump_stack_print_info.cold.1+0x20/0x20
[  631.953654]  ? mark_held_locks+0x130/0x130
[  631.957884]  ? mark_held_locks+0x130/0x130
[  631.962126]  dump_header+0x27b/0xf72
[  631.965856]  ? pagefault_out_of_memory+0x197/0x197
[  631.970815]  ? __lock_acquire+0x62f/0x4c20
[  631.975049]  ? percpu_ref_get_many+0x240/0x240
[  631.979631]  ? print_usage_bug+0xc0/0xc0
[  631.983698]  ? zap_class+0x640/0x640
[  631.987408]  ? print_usage_bug+0xc0/0xc0
[  631.991465]  ? print_usage_bug+0xc0/0xc0
[  631.995551]  ? zap_class+0x640/0x640
[  631.999273]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  632.004838]  ? find_held_lock+0x36/0x1c0
[  632.008907]  ? mark_held_locks+0xc7/0x130
[  632.013087]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  632.018189]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  632.023304]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  632.027885]  ? trace_hardirqs_on+0xbd/0x310
[  632.032204]  ? kasan_check_read+0x11/0x20
[  632.036348]  ? ___ratelimit+0x3b4/0x672
[  632.040343]  ? trace_hardirqs_off_caller+0x310/0x310
[  632.045444]  ? trace_hardirqs_on+0x310/0x310
[  632.049852]  ? lock_downgrade+0x900/0x900
[  632.054007]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  632.059114]  ? ___ratelimit+0x3b9/0x672
[  632.063091]  ? idr_get_free+0xf70/0xf70
[  632.067068]  ? find_held_lock+0x36/0x1c0
[  632.071137]  oom_kill_process.cold.27+0x10/0x903
[  632.075889]  ? zap_class+0x640/0x640
[  632.079615]  ? check_preemption_disabled+0x48/0x280
[  632.084648]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  632.089589]  ? kasan_check_read+0x11/0x20
[  632.093748]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  632.099048]  ? oom_evaluate_task+0x540/0x540
[  632.103461]  ? find_held_lock+0x36/0x1c0
[  632.107529]  ? out_of_memory+0x974/0x1430
[  632.111680]  ? lock_downgrade+0x900/0x900
[  632.115825]  ? check_preemption_disabled+0x48/0x280
[  632.120841]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  632.125769]  ? kasan_check_read+0x11/0x20
[  632.129917]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  632.135212]  ? rcu_softirq_qs+0x20/0x20
[  632.139189]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  632.144725]  ? oom_evaluate_task+0x302/0x540
[  632.149150]  out_of_memory+0xa84/0x1430
[  632.153143]  ? oom_killer_disable+0x3a0/0x3a0
[  632.157635]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  632.162567]  ? __ww_mutex_check_waiters+0x160/0x160
[  632.167596]  __alloc_pages_slowpath+0x232c/0x2de0
[  632.172469]  ? warn_alloc+0x120/0x120
[  632.176275]  ? mark_held_locks+0x130/0x130
[  632.180517]  ? find_get_entry+0xaae/0x1120
[  632.184767]  ? filemap_map_pages+0x1a20/0x1a20
[  632.189358]  ? zap_class+0x640/0x640
[  632.193089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  632.198651]  ? check_preemption_disabled+0x48/0x280
[  632.203680]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  632.209219]  ? should_fail+0x22d/0xd01
[  632.213113]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  632.218216]  ? zap_class+0x640/0x640
[  632.221951]  ? __lock_is_held+0xb5/0x140
[  632.226019]  ? mark_held_locks+0x130/0x130
[  632.230263]  ? lock_release+0xa00/0xa00
[  632.234272]  ? perf_trace_sched_process_exec+0x860/0x860
[  632.239743]  ? xa_load+0x2ba/0x460
[  632.243290]  ? lock_downgrade+0x900/0x900
[  632.247442]  ? __might_sleep+0x95/0x190
[  632.251426]  __alloc_pages_nodemask+0xad8/0xea0
[  632.256129]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  632.261142]  ? __page_cache_alloc+0x191/0x5c0
[  632.265648]  ? xa_load+0x2e1/0x460
[  632.269189]  ? xa_clear_mark+0x40/0x40
[  632.273076]  ? zap_class+0x640/0x640
[  632.276800]  ? zap_class+0x640/0x640
[  632.280515]  ? zap_class+0x640/0x640
[  632.284231]  ? __do_page_cache_readahead+0x663/0x810
[  632.289343]  ? find_held_lock+0x36/0x1c0
[  632.293413]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  632.298962]  alloc_pages_current+0x173/0x350
[  632.303377]  __page_cache_alloc+0x38c/0x5c0
[  632.307698]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  632.312624]  ? kasan_check_read+0x11/0x20
[  632.316773]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  632.322054]  ? generic_perform_write+0x6a0/0x6a0
[  632.326817]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  632.332359]  ? check_preemption_disabled+0x48/0x280
[  632.337387]  filemap_fault+0x1595/0x25f0
[  632.341461]  ? __lock_page_or_retry+0xa00/0xa00
[  632.346137]  ? mark_held_locks+0x130/0x130
[  632.350379]  ? filemap_map_pages+0xd6b/0x1a20
[  632.354873]  ? lock_downgrade+0x900/0x900
[  632.359023]  ? check_preemption_disabled+0x48/0x280
[  632.364039]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  632.368966]  ? kasan_check_read+0x11/0x20
[  632.373111]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  632.378386]  ? rcu_softirq_qs+0x20/0x20
[  632.382373]  ? filemap_map_pages+0xd92/0x1a20
[  632.386875]  ? print_usage_bug+0xc0/0xc0
[  632.390944]  ? find_get_entries_tag+0x1400/0x1400
[  632.395784]  ? __kasan_slab_free+0x102/0x150
[  632.400192]  ? kasan_slab_free+0xe/0x10
[  632.404162]  ? kmem_cache_free+0x83/0x290
[  632.408314]  ? __sigqueue_free.part.29+0x74/0x90
[  632.413085]  ? lock_acquire+0x1ed/0x520
[  632.417057]  ? ext4_filemap_fault+0x7a/0xad
[  632.421386]  ? lock_release+0xa00/0xa00
[  632.425362]  ? perf_trace_sched_process_exec+0x860/0x860
[  632.430813]  ? print_usage_bug+0xc0/0xc0
[  632.434876]  ? print_usage_bug+0xc0/0xc0
[  632.438946]  ? down_read+0x8d/0x120
[  632.442573]  ? ext4_filemap_fault+0x7a/0xad
[  632.446891]  ? __down_interruptible+0x700/0x700
[  632.451569]  ext4_filemap_fault+0x82/0xad
[  632.455783]  __do_fault+0x100/0x6b0
[  632.459414]  ? pmd_devmap_trans_unstable+0x220/0x220
[  632.464520]  ? mark_held_locks+0x130/0x130
[  632.468778]  ? mark_held_locks+0x130/0x130
[  632.473018]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  632.478554]  ? rcu_pm_notify+0xc0/0xc0
[  632.482449]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  632.487990]  __handle_mm_fault+0x3ea0/0x5be0
[  632.492404]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  632.497265]  ? _raw_spin_unlock_irq+0x27/0x80
[  632.501770]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  632.506356]  ? trace_hardirqs_on+0xbd/0x310
[  632.510676]  ? kasan_check_read+0x11/0x20
[  632.514827]  ? __set_current_blocked+0xdf/0x120
[  632.519496]  ? trace_hardirqs_off_caller+0x310/0x310
[  632.524607]  ? zap_class+0x640/0x640
[  632.528315]  ? zap_class+0x640/0x640
[  632.532034]  ? find_held_lock+0x36/0x1c0
[  632.536105]  ? handle_mm_fault+0x42a/0xc70
[  632.540354]  ? lock_downgrade+0x900/0x900
[  632.544516]  ? check_preemption_disabled+0x48/0x280
[  632.549531]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  632.554569]  ? kasan_check_read+0x11/0x20
[  632.558717]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  632.564000]  ? rcu_softirq_qs+0x20/0x20
[  632.567975]  ? trace_hardirqs_off_caller+0x310/0x310
[  632.573084]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  632.578624]  ? check_preemption_disabled+0x48/0x280
[  632.583644]  handle_mm_fault+0x54f/0xc70
[  632.587709]  ? __handle_mm_fault+0x5be0/0x5be0
[  632.592314]  ? find_vma+0x34/0x190
[  632.595887]  __do_page_fault+0x5e8/0xe60
[  632.599963]  ? exit_to_usermode_loop+0x1f4/0x380
[  632.604729]  do_page_fault+0xf2/0x7e0
[  632.608555]  ? vmalloc_sync_all+0x30/0x30
[  632.612702]  ? error_entry+0x70/0xd0
[  632.616438]  ? trace_hardirqs_off_caller+0xbb/0x310
[  632.621450]  ? trace_hardirqs_on_caller+0xc0/0x310
[  632.626375]  ? syscall_return_slowpath+0x5e0/0x5e0
[  632.631297]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  632.636135]  ? trace_hardirqs_on_caller+0x310/0x310
[  632.641164]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  632.646617]  ? prepare_exit_to_usermode+0x291/0x3b0
[  632.651634]  ? page_fault+0x8/0x30
[  632.655175]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  632.660021]  ? page_fault+0x8/0x30
[  632.663576]  page_fault+0x1e/0x30
[  632.667028] RIP: 0033:0x45db60
[  632.670230] Code: Bad RIP value.
[  632.673590] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  632.678961] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  632.686706] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  632.693982] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  632.701256] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  632.708525] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  632.715817] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  632.715823] warn_alloc_show_mem: 1 callbacks suppressed
[  632.715830] Mem-Info:
[  632.722663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  632.728028] active_anon:42936 inactive_anon:306 isolated_anon:0
[  632.728028]  active_file:13 inactive_file:13 isolated_file:0
[  632.728028]  unevictable:0 dirty:0 writeback:0 unstable:0
[  632.728028]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  632.728028]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  632.728028]  free:13785 free_pcp:492 free_cma:0
[  632.730402] Call Trace:
[  632.739801] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  632.772563]  dump_stack+0x244/0x39d
[  632.775117] 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
[  632.802698]  ? dump_stack_print_info.cold.1+0x20/0x20
[  632.806293] lowmem_reserve[]: 0 2818 6321 6321
[  632.832413]  warn_alloc.cold.116+0xb7/0x1bd
[  632.837566] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  632.842138]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  632.846436] lowmem_reserve[]: 0 0 3503 3503
[  632.873577]  ? lock_downgrade+0x900/0x900
[  632.878394] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  632.882715]  ? trace_hardirqs_off+0xb8/0x310
[  632.886846] lowmem_reserve[]: 0 0 0 0
[  632.916005]  ? trace_hardirqs_off+0xb8/0x310
[  632.920386] 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
[  632.924188]  __alloc_pages_slowpath+0x2651/0x2de0
[  632.928581] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  632.942149]  ? warn_alloc+0x120/0x120
[  632.946941] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  632.962103]  ? print_usage_bug+0xc0/0xc0
[  632.965887] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  632.981069]  ? warn_alloc+0x120/0x120
[  632.985110] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  632.993931]  ? warn_alloc+0x120/0x120
[  632.997705] 380 total pagecache pages
[  633.006275]  ? print_usage_bug+0xc0/0xc0
[  633.010057] 0 pages in swap cache
[  633.013846]  ? print_usage_bug+0xc0/0xc0
[  633.017881] Swap cache stats: add 0, delete 0, find 0/0
[  633.021334]  ? __lock_acquire+0x62f/0x4c20
[  633.025368] Free swap  = 0kB
[  633.030724]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  633.034935] Total swap = 0kB
[  633.037963]  ? should_fail+0x22d/0xd01
[  633.043472] 1965979 pages RAM
[  633.046483]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  633.050341] 0 pages HighMem/MovableOnly
[  633.053439]  ? __lock_acquire+0x62f/0x4c20
[  633.058513] 342854 pages reserved
[  633.062477]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  633.066682] 0 pages cma reserved
[  633.070140]  ? __lock_acquire+0x62f/0x4c20
[  633.075309] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  633.078578]  ? should_fail+0x22d/0xd01
[  633.078593]  ? find_held_lock+0x36/0x1c0
[  633.082906] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  633.089311]  ? mark_held_locks+0x130/0x130
[  633.093170] syz-fuzzer cpuset=/ mems_allowed=0
[  633.097222]  ? mark_held_locks+0x130/0x130
[  633.120414]  ? zap_class+0x640/0x640
[  633.124144]  ? mark_held_locks+0xc7/0x130
[  633.128287]  ? do_raw_spin_unlock+0xa7/0x330
[  633.132695]  ? zap_class+0x640/0x640
[  633.136406]  ? print_usage_bug+0xc0/0xc0
[  633.140466]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.146005]  ? check_preemption_disabled+0x48/0x280
[  633.151028]  ? __lock_is_held+0xb5/0x140
[  633.155113]  __alloc_pages_nodemask+0xad8/0xea0
[  633.159809]  ? zap_class+0x640/0x640
[  633.163526]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  633.168553]  ? find_held_lock+0x36/0x1c0
[  633.172621]  ? ____cache_alloc_node+0x1c7/0x1e0
[  633.177287]  ? lock_downgrade+0x900/0x900
[  633.181458]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.187002]  cache_grow_begin+0xa5/0x8c0
[  633.191061]  ? do_raw_spin_unlock+0xa7/0x330
[  633.195476]  fallback_alloc+0x204/0x2e0
[  633.199486]  ____cache_alloc_node+0x1c7/0x1e0
[  633.203989]  kmem_cache_alloc_node+0xe3/0x730
[  633.208498]  ? ipv6_get_ifaddr+0x42e/0x620
[  633.212748]  __alloc_skb+0x119/0x770
[  633.216464]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  633.221752]  ? netdev_alloc_frag+0x1f0/0x1f0
[  633.226167]  ? lock_downgrade+0x900/0x900
[  633.230323]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.235857]  ? refcount_sub_and_test_checked+0x203/0x310
[  633.241308]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  633.246777]  ? addrconf_rs_timer+0x690/0x690
[  633.251195]  ndisc_alloc_skb+0x144/0x340
[  633.255264]  ndisc_send_rs+0x331/0x6e0
[  633.259157]  addrconf_rs_timer+0x314/0x690
[  633.263396]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  633.267660]  call_timer_fn+0x272/0x920
[  633.271558]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  633.275797]  ? process_timeout+0x40/0x40
[  633.279866]  ? __run_timers+0x7da/0xc70
[  633.283845]  ? _raw_spin_unlock_irq+0x27/0x80
[  633.288334]  ? _raw_spin_unlock_irq+0x27/0x80
[  633.292825]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  633.297076]  ? lockdep_hardirqs_on+0x296/0x5b0
[  633.301661]  ? trace_hardirqs_on+0xbd/0x310
[  633.305997]  ? kasan_check_read+0x11/0x20
[  633.310141]  ? __run_timers+0x7da/0xc70
[  633.314119]  ? trace_hardirqs_off_caller+0x310/0x310
[  633.319226]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  633.323466]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  633.327701]  __run_timers+0x7e5/0xc70
[  633.331513]  ? timer_fixup_init+0x70/0x70
[  633.335658]  ? _raw_spin_unlock_irq+0x27/0x80
[  633.340150]  ? _raw_spin_unlock_irq+0x27/0x80
[  633.344646]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  633.349227]  ? trace_hardirqs_on+0xbd/0x310
[  633.353545]  ? kasan_check_read+0x11/0x20
[  633.357706]  ? finish_task_switch+0x1f4/0x910
[  633.362207]  ? trace_hardirqs_off_caller+0x310/0x310
[  633.367323]  ? compat_start_thread+0x80/0x80
[  633.371766]  ? pvclock_read_flags+0x160/0x160
[  633.376256]  ? __switch_to_asm+0x34/0x70
[  633.380318]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.385855]  ? check_preemption_disabled+0x48/0x280
[  633.390878]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  633.396418]  ? rcu_pm_notify+0xc0/0xc0
[  633.400309]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.405849]  ? check_preemption_disabled+0x48/0x280
[  633.410869]  run_timer_softirq+0x52/0xb0
[  633.414942]  ? rcu_read_lock_sched_held+0x14f/0x180
[  633.419957]  __do_softirq+0x308/0xb7e
[  633.423773]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  633.428546]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  633.433660]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  633.439111]  ? trace_hardirqs_on+0x310/0x310
[  633.443527]  ? schedule+0x108/0x460
[  633.447163]  ? trace_hardirqs_off+0xb8/0x310
[  633.451573]  ? smpboot_thread_fn+0x68b/0xa00
[  633.455985]  ? trace_hardirqs_on+0x310/0x310
[  633.460394]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  633.465933]  ? check_preemption_disabled+0x48/0x280
[  633.470953]  ? takeover_tasklets+0xa90/0xa90
[  633.475361]  run_ksoftirqd+0x5e/0x100
[  633.479159]  smpboot_thread_fn+0x68b/0xa00
[  633.483443]  ? sort_range+0x30/0x30
[  633.487073]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  633.492173]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  633.497725]  ? __kthread_parkme+0xfb/0x1a0
[  633.501975]  ? sort_range+0x30/0x30
[  633.505614]  kthread+0x35a/0x440
[  633.509007]  ? kthread_stop+0x900/0x900
[  633.512983]  ret_from_fork+0x3a/0x50
[  633.516711] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  633.516794] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  633.523746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  633.523752] Call Trace:
[  633.523758]  <IRQ>
[  633.523776]  dump_stack+0x244/0x39d
[  633.523799]  ? dump_stack_print_info.cold.1+0x20/0x20
[  633.530557] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  633.539628]  warn_alloc.cold.116+0xb7/0x1bd
[  633.542180] ksoftirqd/0 cpuset=/ mems_allowed=0
[  633.544325]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  633.577214]  ? lock_downgrade+0x900/0x900
[  633.581368]  ? trace_hardirqs_off+0xb8/0x310
[  633.585785]  ? trace_hardirqs_off+0xb8/0x310
[  633.590203]  __alloc_pages_slowpath+0x2651/0x2de0
[  633.595071]  ? warn_alloc+0x120/0x120
[  633.598873]  ? print_usage_bug+0xc0/0xc0
[  633.602931]  ? warn_alloc+0x120/0x120
[  633.606744]  ? warn_alloc+0x120/0x120
[  633.610545]  ? print_usage_bug+0xc0/0xc0
[  633.614603]  ? kvm_clock_read+0x18/0x30
[  633.618592]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  633.623608]  ? print_usage_bug+0xc0/0xc0
[  633.627666]  ? __lock_acquire+0x62f/0x4c20
[  633.631919]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  633.637460]  ? should_fail+0x22d/0xd01
[  633.641345]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  633.646642]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  633.651780]  ? __lock_acquire+0x62f/0x4c20
[  633.656049]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  633.661147]  ? __lock_acquire+0x62f/0x4c20
[  633.665377]  ? should_fail+0x22d/0xd01
[  633.669266]  ? rcu_irq_exit+0x1a2/0x390
[  633.673268]  ? mark_held_locks+0x130/0x130
[  633.677506]  ? mark_held_locks+0x130/0x130
[  633.681770]  ? mark_held_locks+0xc7/0x130
[  633.685936]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  633.690981]  ? zap_class+0x640/0x640
[  633.694695]  ? print_usage_bug+0xc0/0xc0
[  633.698796]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.704348]  ? check_preemption_disabled+0x48/0x280
[  633.709370]  ? __lock_is_held+0xb5/0x140
[  633.713449]  __alloc_pages_nodemask+0xad8/0xea0
[  633.718113]  ? zap_class+0x640/0x640
[  633.721826]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  633.726869]  ? find_held_lock+0x36/0x1c0
[  633.730938]  ? ____cache_alloc_node+0x1c7/0x1e0
[  633.735609]  ? lock_downgrade+0x900/0x900
[  633.739788]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.745328]  cache_grow_begin+0xa5/0x8c0
[  633.749391]  ? do_raw_spin_unlock+0xa7/0x330
[  633.753812]  fallback_alloc+0x204/0x2e0
[  633.757797]  ____cache_alloc_node+0x1c7/0x1e0
[  633.762297]  kmem_cache_alloc_node+0xe3/0x730
[  633.766791]  ? ipv6_get_ifaddr+0x42e/0x620
[  633.771055]  __alloc_skb+0x119/0x770
[  633.774773]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  633.780054]  ? netdev_alloc_frag+0x1f0/0x1f0
[  633.784461]  ? lock_downgrade+0x900/0x900
[  633.788613]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.794165]  ? refcount_sub_and_test_checked+0x203/0x310
[  633.799616]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  633.805061]  ? addrconf_rs_timer+0x690/0x690
[  633.809476]  ndisc_alloc_skb+0x144/0x340
[  633.813540]  ndisc_send_rs+0x331/0x6e0
[  633.817436]  addrconf_rs_timer+0x314/0x690
[  633.821677]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  633.825932]  call_timer_fn+0x272/0x920
[  633.829838]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  633.834070]  ? process_timeout+0x40/0x40
[  633.838140]  ? mark_held_locks+0xc7/0x130
[  633.842287]  ? _raw_spin_unlock_irq+0x27/0x80
[  633.846781]  ? _raw_spin_unlock_irq+0x27/0x80
[  633.851279]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  633.855516]  ? lockdep_hardirqs_on+0x296/0x5b0
[  633.860099]  ? trace_hardirqs_on+0xbd/0x310
[  633.864421]  ? kasan_check_read+0x11/0x20
[  633.868564]  ? __run_timers+0x7da/0xc70
[  633.872540]  ? trace_hardirqs_off_caller+0x310/0x310
[  633.877644]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  633.881882]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  633.886186]  __run_timers+0x7e5/0xc70
[  633.889994]  ? timer_fixup_init+0x70/0x70
[  633.894147]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  633.899161]  ? zap_class+0x640/0x640
[  633.902879]  ? print_usage_bug+0xc0/0xc0
[  633.906963]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  633.912158]  ? find_held_lock+0x36/0x1c0
[  633.916225]  ? zap_class+0x640/0x640
[  633.919947]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.925485]  ? check_preemption_disabled+0x48/0x280
[  633.930512]  ? __lock_is_held+0xb5/0x140
[  633.934577]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.940113]  ? check_preemption_disabled+0x48/0x280
[  633.945134]  run_timer_softirq+0x52/0xb0
[  633.949196]  ? rcu_read_lock_sched_held+0x14f/0x180
[  633.954211]  __do_softirq+0x308/0xb7e
[  633.958062]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  633.962552]  ? lock_downgrade+0x900/0x900
[  633.966703]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  633.971824]  ? pvclock_read_flags+0x160/0x160
[  633.976334]  ? lapic_next_event+0x5a/0x90
[  633.980486]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  633.986028]  ? kvm_clock_read+0x18/0x30
[  633.990006]  ? kvm_sched_clock_read+0x9/0x20
[  633.994414]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  633.999948]  ? check_preemption_disabled+0x48/0x280
[  634.004970]  irq_exit+0x17f/0x1c0
[  634.008435]  smp_apic_timer_interrupt+0x1cb/0x760
[  634.013276]  ? smp_reschedule_interrupt+0x109/0x650
[  634.018293]  ? smp_call_function_single_interrupt+0x650/0x650
[  634.024194]  ? interrupt_entry+0xb5/0xc0
[  634.028262]  ? trace_hardirqs_off_caller+0xbb/0x310
[  634.033279]  ? trace_hardirqs_off_caller+0xbb/0x310
[  634.038291]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  634.043145]  ? trace_hardirqs_on_caller+0x310/0x310
[  634.048157]  ? trace_hardirqs_on_caller+0x310/0x310
[  634.053187]  ? task_prio+0x50/0x50
[  634.056749]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  634.062319]  ? check_preemption_disabled+0x48/0x280
[  634.067341]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  634.072205]  apic_timer_interrupt+0xf/0x20
[  634.076435]  </IRQ>
[  634.078673] RIP: 0010:dump_stack+0x358/0x39d
[  634.083079] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  634.101993] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  634.109699] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  634.116986] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  634.124252] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  634.131520] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  634.138787] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  634.146068]  ? dump_stack+0x34f/0x39d
[  634.149882]  ? dump_stack_print_info.cold.1+0x20/0x20
[  634.155074]  ? mark_held_locks+0x130/0x130
[  634.159306]  ? mark_held_locks+0x130/0x130
[  634.163555]  dump_header+0x27b/0xf72
[  634.167288]  ? pagefault_out_of_memory+0x197/0x197
[  634.172222]  ? __lock_acquire+0x62f/0x4c20
[  634.176456]  ? percpu_ref_get_many+0x240/0x240
[  634.181042]  ? print_usage_bug+0xc0/0xc0
[  634.185109]  ? zap_class+0x640/0x640
[  634.188825]  ? print_usage_bug+0xc0/0xc0
[  634.192887]  ? print_usage_bug+0xc0/0xc0
[  634.196947]  ? zap_class+0x640/0x640
[  634.200674]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  634.206213]  ? find_held_lock+0x36/0x1c0
[  634.210291]  ? mark_held_locks+0xc7/0x130
[  634.214459]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  634.219562]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  634.224681]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  634.229298]  ? trace_hardirqs_on+0xbd/0x310
[  634.233620]  ? kasan_check_read+0x11/0x20
[  634.237772]  ? ___ratelimit+0x3b4/0x672
[  634.241782]  ? trace_hardirqs_off_caller+0x310/0x310
[  634.246905]  ? trace_hardirqs_on+0x310/0x310
[  634.251330]  ? lock_downgrade+0x900/0x900
[  634.255498]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  634.260606]  ? ___ratelimit+0x3b9/0x672
[  634.264612]  ? idr_get_free+0xf70/0xf70
[  634.268587]  ? find_held_lock+0x36/0x1c0
[  634.272672]  oom_kill_process.cold.27+0x10/0x903
[  634.277425]  ? zap_class+0x640/0x640
[  634.281135]  ? check_preemption_disabled+0x48/0x280
[  634.286167]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  634.291095]  ? kasan_check_read+0x11/0x20
[  634.295253]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  634.300576]  ? oom_evaluate_task+0x540/0x540
[  634.305004]  ? find_held_lock+0x36/0x1c0
[  634.309073]  ? out_of_memory+0x974/0x1430
[  634.313225]  ? lock_downgrade+0x900/0x900
[  634.317385]  ? check_preemption_disabled+0x48/0x280
[  634.322415]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  634.327341]  ? kasan_check_read+0x11/0x20
[  634.331486]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  634.336767]  ? rcu_softirq_qs+0x20/0x20
[  634.340753]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  634.346306]  ? oom_evaluate_task+0x302/0x540
[  634.350734]  out_of_memory+0xa84/0x1430
[  634.354744]  ? oom_killer_disable+0x3a0/0x3a0
[  634.359261]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  634.364191]  ? __ww_mutex_check_waiters+0x160/0x160
[  634.369217]  __alloc_pages_slowpath+0x232c/0x2de0
[  634.374101]  ? warn_alloc+0x120/0x120
[  634.377899]  ? mark_held_locks+0x130/0x130
[  634.382140]  ? find_get_entry+0xaae/0x1120
[  634.386385]  ? filemap_map_pages+0x1a20/0x1a20
[  634.390976]  ? zap_class+0x640/0x640
[  634.394694]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  634.400230]  ? check_preemption_disabled+0x48/0x280
[  634.405244]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  634.410782]  ? should_fail+0x22d/0xd01
[  634.414675]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  634.419778]  ? zap_class+0x640/0x640
[  634.423521]  ? __lock_is_held+0xb5/0x140
[  634.427604]  ? mark_held_locks+0x130/0x130
[  634.431844]  ? lock_release+0xa00/0xa00
[  634.435822]  ? perf_trace_sched_process_exec+0x860/0x860
[  634.441275]  ? xa_load+0x2ba/0x460
[  634.444816]  ? lock_downgrade+0x900/0x900
[  634.448971]  ? __might_sleep+0x95/0x190
[  634.452948]  __alloc_pages_nodemask+0xad8/0xea0
[  634.457628]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  634.462648]  ? __page_cache_alloc+0x191/0x5c0
[  634.467140]  ? xa_load+0x2e1/0x460
[  634.470681]  ? xa_clear_mark+0x40/0x40
[  634.474584]  ? zap_class+0x640/0x640
[  634.478304]  ? zap_class+0x640/0x640
[  634.482020]  ? zap_class+0x640/0x640
[  634.485759]  ? __do_page_cache_readahead+0x663/0x810
[  634.490872]  ? find_held_lock+0x36/0x1c0
[  634.494953]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  634.500495]  alloc_pages_current+0x173/0x350
[  634.504908]  __page_cache_alloc+0x38c/0x5c0
[  634.509229]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  634.514162]  ? kasan_check_read+0x11/0x20
[  634.518310]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  634.523587]  ? generic_perform_write+0x6a0/0x6a0
[  634.528342]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  634.533881]  ? check_preemption_disabled+0x48/0x280
[  634.538910]  filemap_fault+0x1595/0x25f0
[  634.542984]  ? __lock_page_or_retry+0xa00/0xa00
[  634.547683]  ? mark_held_locks+0x130/0x130
[  634.551926]  ? filemap_map_pages+0xd6b/0x1a20
[  634.556604]  ? lock_downgrade+0x900/0x900
[  634.560762]  ? check_preemption_disabled+0x48/0x280
[  634.565781]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  634.570748]  ? kasan_check_read+0x11/0x20
[  634.574907]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  634.580182]  ? rcu_softirq_qs+0x20/0x20
[  634.584166]  ? filemap_map_pages+0xd92/0x1a20
[  634.588664]  ? print_usage_bug+0xc0/0xc0
[  634.592749]  ? find_get_entries_tag+0x1400/0x1400
[  634.597591]  ? __kasan_slab_free+0x102/0x150
[  634.601999]  ? kasan_slab_free+0xe/0x10
[  634.605973]  ? kmem_cache_free+0x83/0x290
[  634.610121]  ? __sigqueue_free.part.29+0x74/0x90
[  634.614896]  ? lock_acquire+0x1ed/0x520
[  634.618868]  ? ext4_filemap_fault+0x7a/0xad
[  634.623197]  ? lock_release+0xa00/0xa00
[  634.627166]  ? perf_trace_sched_process_exec+0x860/0x860
[  634.632617]  ? print_usage_bug+0xc0/0xc0
[  634.636693]  ? print_usage_bug+0xc0/0xc0
[  634.640767]  ? down_read+0x8d/0x120
[  634.644395]  ? ext4_filemap_fault+0x7a/0xad
[  634.648712]  ? __down_interruptible+0x700/0x700
[  634.653414]  ext4_filemap_fault+0x82/0xad
[  634.657591]  __do_fault+0x100/0x6b0
[  634.661247]  ? pmd_devmap_trans_unstable+0x220/0x220
[  634.666354]  ? mark_held_locks+0x130/0x130
[  634.670593]  ? mark_held_locks+0x130/0x130
[  634.674839]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  634.680376]  ? rcu_pm_notify+0xc0/0xc0
[  634.684289]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  634.690360]  __handle_mm_fault+0x3ea0/0x5be0
[  634.694779]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  634.699621]  ? _raw_spin_unlock_irq+0x27/0x80
[  634.704130]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  634.708714]  ? trace_hardirqs_on+0xbd/0x310
[  634.713041]  ? kasan_check_read+0x11/0x20
[  634.717190]  ? __set_current_blocked+0xdf/0x120
[  634.721861]  ? trace_hardirqs_off_caller+0x310/0x310
[  634.726977]  ? zap_class+0x640/0x640
[  634.730690]  ? zap_class+0x640/0x640
[  634.734413]  ? find_held_lock+0x36/0x1c0
[  634.738497]  ? handle_mm_fault+0x42a/0xc70
[  634.742742]  ? lock_downgrade+0x900/0x900
[  634.746887]  ? check_preemption_disabled+0x48/0x280
[  634.751903]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  634.756846]  ? kasan_check_read+0x11/0x20
[  634.760990]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  634.766272]  ? rcu_softirq_qs+0x20/0x20
[  634.770246]  ? trace_hardirqs_off_caller+0x310/0x310
[  634.775352]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  634.780893]  ? check_preemption_disabled+0x48/0x280
[  634.785913]  handle_mm_fault+0x54f/0xc70
[  634.789980]  ? __handle_mm_fault+0x5be0/0x5be0
[  634.794565]  ? find_vma+0x34/0x190
[  634.798124]  __do_page_fault+0x5e8/0xe60
[  634.802193]  ? exit_to_usermode_loop+0x1f4/0x380
[  634.806956]  do_page_fault+0xf2/0x7e0
[  634.810768]  ? vmalloc_sync_all+0x30/0x30
[  634.814916]  ? error_entry+0x70/0xd0
[  634.818633]  ? trace_hardirqs_off_caller+0xbb/0x310
[  634.823646]  ? trace_hardirqs_on_caller+0xc0/0x310
[  634.828578]  ? syscall_return_slowpath+0x5e0/0x5e0
[  634.833507]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  634.838347]  ? trace_hardirqs_on_caller+0x310/0x310
[  634.843359]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  634.848826]  ? prepare_exit_to_usermode+0x291/0x3b0
[  634.853838]  ? page_fault+0x8/0x30
[  634.857406]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  634.862251]  ? page_fault+0x8/0x30
[  634.865811]  page_fault+0x1e/0x30
[  634.869265] RIP: 0033:0x45db60
[  634.872472] Code: Bad RIP value.
[  634.875831] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  634.881203] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  634.888465] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  634.895750] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  634.903013] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  634.910276] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  634.917566] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  634.917572] warn_alloc_show_mem: 1 callbacks suppressed
[  634.917579] Mem-Info:
[  634.924410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  634.929800] active_anon:42936 inactive_anon:306 isolated_anon:0
[  634.929800]  active_file:13 inactive_file:13 isolated_file:0
[  634.929800]  unevictable:0 dirty:0 writeback:0 unstable:0
[  634.929800]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  634.929800]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  634.929800]  free:13785 free_pcp:492 free_cma:0
[  634.932172] Call Trace:
[  634.941586] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  634.974347]  dump_stack+0x244/0x39d
[  634.976901] 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
[  635.004476]  ? dump_stack_print_info.cold.1+0x20/0x20
[  635.008073] lowmem_reserve[]: 0 2818 6321 6321
[  635.034180]  warn_alloc.cold.116+0xb7/0x1bd
[  635.039335] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  635.043908]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  635.048201] lowmem_reserve[]: 0 0 3503 3503
[  635.075345]  ? lock_downgrade+0x900/0x900
[  635.080190] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  635.084508]  ? trace_hardirqs_off+0xb8/0x310
[  635.088620] lowmem_reserve[]: 0 0 0 0
[  635.117805]  ? trace_hardirqs_off+0xb8/0x310
[  635.122184] 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
[  635.125983]  __alloc_pages_slowpath+0x2651/0x2de0
[  635.130364] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  635.143897]  ? warn_alloc+0x120/0x120
[  635.148713] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  635.163885]  ? print_usage_bug+0xc0/0xc0
[  635.167664] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  635.182818]  ? warn_alloc+0x120/0x120
[  635.186858] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  635.195693]  ? warn_alloc+0x120/0x120
[  635.199470] 380 total pagecache pages
[  635.208032]  ? print_usage_bug+0xc0/0xc0
[  635.211811] 0 pages in swap cache
[  635.215598]  ? print_usage_bug+0xc0/0xc0
[  635.219632] Swap cache stats: add 0, delete 0, find 0/0
[  635.223076]  ? print_usage_bug+0xc0/0xc0
[  635.227108] Free swap  = 0kB
[  635.232461]  ? __lock_acquire+0x62f/0x4c20
[  635.236498] Total swap = 0kB
[  635.239509]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  635.243715] 1965979 pages RAM
[  635.246733]  ? should_fail+0x22d/0xd01
[  635.252249] 0 pages HighMem/MovableOnly
[  635.255356]  ? __lock_acquire+0x62f/0x4c20
[  635.259217] 342854 pages reserved
[  635.263178]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  635.267383] 0 pages cma reserved
[  635.270826]  ? __lock_acquire+0x62f/0x4c20
[  635.275958] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  635.279260]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  635.279274]  ? __lock_acquire+0x62f/0x4c20
[  635.279287]  ? should_fail+0x22d/0xd01
[  635.279310]  ? mark_held_locks+0x130/0x130
[  635.283577] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  635.290006]  ? mark_held_locks+0x130/0x130
[  635.295092] syz-fuzzer cpuset=/ mems_allowed=0
[  635.299331]  ? lock_downgrade+0x900/0x900
[  635.330575]  ? zap_class+0x640/0x640
[  635.334291]  ? print_usage_bug+0xc0/0xc0
[  635.338351]  ? trace_hardirqs_off+0xb8/0x310
[  635.342766]  ? kasan_check_read+0x11/0x20
[  635.346916]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  635.352450]  ? check_preemption_disabled+0x48/0x280
[  635.357472]  ? __lock_is_held+0xb5/0x140
[  635.361540]  __alloc_pages_nodemask+0xad8/0xea0
[  635.366208]  ? zap_class+0x640/0x640
[  635.369925]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  635.374950]  ? find_held_lock+0x36/0x1c0
[  635.379033]  ? ____cache_alloc_node+0x1c7/0x1e0
[  635.383714]  ? lock_downgrade+0x900/0x900
[  635.387872]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  635.393429]  cache_grow_begin+0xa5/0x8c0
[  635.397485]  ? do_raw_spin_unlock+0xa7/0x330
[  635.401929]  fallback_alloc+0x204/0x2e0
[  635.405909]  ____cache_alloc_node+0x1c7/0x1e0
[  635.410412]  kmem_cache_alloc_node+0xe3/0x730
[  635.414922]  ? ipv6_get_ifaddr+0x42e/0x620
[  635.419186]  __alloc_skb+0x119/0x770
[  635.422919]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  635.428203]  ? netdev_alloc_frag+0x1f0/0x1f0
[  635.432611]  ? lock_downgrade+0x900/0x900
[  635.436787]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  635.442341]  ? refcount_sub_and_test_checked+0x203/0x310
[  635.447800]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  635.453252]  ? addrconf_rs_timer+0x690/0x690
[  635.457675]  ndisc_alloc_skb+0x144/0x340
[  635.461748]  ndisc_send_rs+0x331/0x6e0
[  635.465661]  addrconf_rs_timer+0x314/0x690
[  635.469920]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  635.474163]  call_timer_fn+0x272/0x920
[  635.478052]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  635.482287]  ? process_timeout+0x40/0x40
[  635.486353]  ? __run_timers+0x7da/0xc70
[  635.490344]  ? _raw_spin_unlock_irq+0x27/0x80
[  635.494847]  ? _raw_spin_unlock_irq+0x27/0x80
[  635.499341]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  635.503606]  ? lockdep_hardirqs_on+0x296/0x5b0
[  635.508205]  ? trace_hardirqs_on+0xbd/0x310
[  635.512522]  ? kasan_check_read+0x11/0x20
[  635.516669]  ? __run_timers+0x7da/0xc70
[  635.520641]  ? trace_hardirqs_off_caller+0x310/0x310
[  635.525765]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  635.529999]  __run_timers+0x7e5/0xc70
[  635.533809]  ? timer_fixup_init+0x70/0x70
[  635.537952]  ? _raw_spin_unlock_irq+0x27/0x80
[  635.542441]  ? _raw_spin_unlock_irq+0x27/0x80
[  635.546938]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  635.551520]  ? trace_hardirqs_on+0xbd/0x310
[  635.555841]  ? kasan_check_read+0x11/0x20
[  635.560021]  ? finish_task_switch+0x1f4/0x910
[  635.564515]  ? trace_hardirqs_off_caller+0x310/0x310
[  635.569617]  ? compat_start_thread+0x80/0x80
[  635.574048]  ? pvclock_read_flags+0x160/0x160
[  635.578538]  ? __switch_to_asm+0x34/0x70
[  635.582596]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  635.588152]  ? check_preemption_disabled+0x48/0x280
[  635.593181]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  635.598722]  ? rcu_pm_notify+0xc0/0xc0
[  635.602627]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  635.608175]  ? check_preemption_disabled+0x48/0x280
[  635.613194]  run_timer_softirq+0x52/0xb0
[  635.617257]  ? rcu_read_lock_sched_held+0x14f/0x180
[  635.622270]  __do_softirq+0x308/0xb7e
[  635.626070]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  635.630833]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  635.635932]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  635.641377]  ? trace_hardirqs_on+0x310/0x310
[  635.645805]  ? schedule+0x108/0x460
[  635.649440]  ? trace_hardirqs_off+0xb8/0x310
[  635.653848]  ? smpboot_thread_fn+0x68b/0xa00
[  635.658270]  ? trace_hardirqs_on+0x310/0x310
[  635.662678]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  635.668215]  ? check_preemption_disabled+0x48/0x280
[  635.673231]  ? takeover_tasklets+0xa90/0xa90
[  635.677640]  run_ksoftirqd+0x5e/0x100
[  635.681445]  smpboot_thread_fn+0x68b/0xa00
[  635.685684]  ? sort_range+0x30/0x30
[  635.689331]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  635.694447]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  635.699979]  ? __kthread_parkme+0xfb/0x1a0
[  635.704217]  ? sort_range+0x30/0x30
[  635.707843]  kthread+0x35a/0x440
[  635.711208]  ? kthread_stop+0x900/0x900
[  635.715184]  ret_from_fork+0x3a/0x50
[  635.718911] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  635.718998] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  635.725917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  635.725926] Call Trace:
[  635.732487] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  635.741747]  <IRQ>
[  635.744317] ksoftirqd/0 cpuset=/ mems_allowed=0
[  635.754618]  dump_stack+0x244/0x39d
[  635.765035]  ? dump_stack_print_info.cold.1+0x20/0x20
[  635.770240]  warn_alloc.cold.116+0xb7/0x1bd
[  635.774563]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  635.779409]  ? lock_downgrade+0x900/0x900
[  635.783565]  ? trace_hardirqs_off+0xb8/0x310
[  635.787981]  ? trace_hardirqs_off+0xb8/0x310
[  635.792429]  __alloc_pages_slowpath+0x2651/0x2de0
[  635.797303]  ? warn_alloc+0x120/0x120
[  635.801104]  ? print_usage_bug+0xc0/0xc0
[  635.805167]  ? warn_alloc+0x120/0x120
[  635.808971]  ? warn_alloc+0x120/0x120
[  635.812777]  ? print_usage_bug+0xc0/0xc0
[  635.816843]  ? print_usage_bug+0xc0/0xc0
[  635.820904]  ? __lock_acquire+0x62f/0x4c20
[  635.825162]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  635.830695]  ? should_fail+0x22d/0xd01
[  635.834604]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  635.839708]  ? __lock_acquire+0x62f/0x4c20
[  635.843946]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  635.849042]  ? __lock_acquire+0x62f/0x4c20
[  635.853275]  ? should_fail+0x22d/0xd01
[  635.857158]  ? find_held_lock+0x36/0x1c0
[  635.861229]  ? mark_held_locks+0x130/0x130
[  635.865468]  ? mark_held_locks+0x130/0x130
[  635.869701]  ? zap_class+0x640/0x640
[  635.873417]  ? zap_class+0x640/0x640
[  635.877132]  ? print_usage_bug+0xc0/0xc0
[  635.881189]  ? do_raw_spin_unlock+0xa7/0x330
[  635.885608]  ? zap_class+0x640/0x640
[  635.889316]  ? print_usage_bug+0xc0/0xc0
[  635.893374]  ? wq_watchdog_touch+0x9c/0xfe
[  635.897616]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  635.903149]  ? check_preemption_disabled+0x48/0x280
[  635.908176]  ? __lock_is_held+0xb5/0x140
[  635.912242]  __alloc_pages_nodemask+0xad8/0xea0
[  635.916911]  ? zap_class+0x640/0x640
[  635.920627]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  635.925657]  ? find_held_lock+0x36/0x1c0
[  635.929751]  ? ____cache_alloc_node+0x1c7/0x1e0
[  635.934422]  ? lock_downgrade+0x900/0x900
[  635.938578]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  635.944117]  cache_grow_begin+0xa5/0x8c0
[  635.948179]  ? do_raw_spin_unlock+0xa7/0x330
[  635.952591]  fallback_alloc+0x204/0x2e0
[  635.956575]  ____cache_alloc_node+0x1c7/0x1e0
[  635.961074]  kmem_cache_alloc_node+0xe3/0x730
[  635.965568]  ? ipv6_get_ifaddr+0x42e/0x620
[  635.969845]  __alloc_skb+0x119/0x770
[  635.973574]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  635.978855]  ? netdev_alloc_frag+0x1f0/0x1f0
[  635.983265]  ? lock_downgrade+0x900/0x900
[  635.987434]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  635.992983]  ? refcount_sub_and_test_checked+0x203/0x310
[  635.998437]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  636.003891]  ? addrconf_rs_timer+0x690/0x690
[  636.008313]  ndisc_alloc_skb+0x144/0x340
[  636.012378]  ndisc_send_rs+0x331/0x6e0
[  636.016274]  addrconf_rs_timer+0x314/0x690
[  636.020510]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  636.024776]  call_timer_fn+0x272/0x920
[  636.028660]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  636.032896]  ? process_timeout+0x40/0x40
[  636.036962]  ? mark_held_locks+0xc7/0x130
[  636.041109]  ? _raw_spin_unlock_irq+0x27/0x80
[  636.045603]  ? _raw_spin_unlock_irq+0x27/0x80
[  636.050097]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  636.054332]  ? lockdep_hardirqs_on+0x296/0x5b0
[  636.058914]  ? trace_hardirqs_on+0xbd/0x310
[  636.063235]  ? kasan_check_read+0x11/0x20
[  636.067382]  ? __run_timers+0x7da/0xc70
[  636.071356]  ? trace_hardirqs_off_caller+0x310/0x310
[  636.076464]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  636.080703]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  636.084932]  __run_timers+0x7e5/0xc70
[  636.088759]  ? timer_fixup_init+0x70/0x70
[  636.092903]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  636.097917]  ? zap_class+0x640/0x640
[  636.101634]  ? print_usage_bug+0xc0/0xc0
[  636.105712]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  636.110919]  ? find_held_lock+0x36/0x1c0
[  636.114987]  ? zap_class+0x640/0x640
[  636.118703]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  636.124255]  ? check_preemption_disabled+0x48/0x280
[  636.129302]  ? __lock_is_held+0xb5/0x140
[  636.133363]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  636.138898]  ? check_preemption_disabled+0x48/0x280
[  636.143943]  run_timer_softirq+0x52/0xb0
[  636.148005]  ? rcu_read_lock_sched_held+0x14f/0x180
[  636.153022]  __do_softirq+0x308/0xb7e
[  636.156829]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  636.161320]  ? lock_downgrade+0x900/0x900
[  636.165473]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  636.170583]  ? pvclock_read_flags+0x160/0x160
[  636.175079]  ? lapic_next_event+0x5a/0x90
[  636.179243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  636.184794]  ? kvm_clock_read+0x18/0x30
[  636.188770]  ? kvm_sched_clock_read+0x9/0x20
[  636.193177]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  636.198710]  ? check_preemption_disabled+0x48/0x280
[  636.203774]  irq_exit+0x17f/0x1c0
[  636.207248]  smp_apic_timer_interrupt+0x1cb/0x760
[  636.212097]  ? smp_reschedule_interrupt+0x109/0x650
[  636.217117]  ? smp_call_function_single_interrupt+0x650/0x650
[  636.222998]  ? interrupt_entry+0xb5/0xc0
[  636.227063]  ? trace_hardirqs_off_caller+0xbb/0x310
[  636.232080]  ? trace_hardirqs_off_caller+0xbb/0x310
[  636.237110]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  636.241955]  ? trace_hardirqs_on_caller+0x310/0x310
[  636.246967]  ? trace_hardirqs_on_caller+0x310/0x310
[  636.251979]  ? task_prio+0x50/0x50
[  636.255520]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  636.261056]  ? check_preemption_disabled+0x48/0x280
[  636.266077]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  636.270927]  apic_timer_interrupt+0xf/0x20
[  636.275149]  </IRQ>
[  636.277383] RIP: 0010:dump_stack+0x358/0x39d
[  636.281803] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  636.300698] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  636.308398] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  636.315664] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  636.322930] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  636.330211] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  636.337473] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  636.344786]  ? dump_stack+0x34f/0x39d
[  636.348600]  ? dump_stack_print_info.cold.1+0x20/0x20
[  636.353790]  ? mark_held_locks+0x130/0x130
[  636.358027]  ? mark_held_locks+0x130/0x130
[  636.362269]  dump_header+0x27b/0xf72
[  636.365998]  ? pagefault_out_of_memory+0x197/0x197
[  636.370950]  ? __lock_acquire+0x62f/0x4c20
[  636.375196]  ? percpu_ref_get_many+0x240/0x240
[  636.379786]  ? print_usage_bug+0xc0/0xc0
[  636.383854]  ? zap_class+0x640/0x640
[  636.387582]  ? print_usage_bug+0xc0/0xc0
[  636.391641]  ? print_usage_bug+0xc0/0xc0
[  636.395705]  ? zap_class+0x640/0x640
[  636.399428]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  636.404967]  ? find_held_lock+0x36/0x1c0
[  636.409054]  ? mark_held_locks+0xc7/0x130
[  636.413204]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  636.418304]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  636.423426]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  636.428028]  ? trace_hardirqs_on+0xbd/0x310
[  636.432348]  ? kasan_check_read+0x11/0x20
[  636.436491]  ? ___ratelimit+0x3b4/0x672
[  636.440463]  ? trace_hardirqs_off_caller+0x310/0x310
[  636.445564]  ? trace_hardirqs_on+0x310/0x310
[  636.449982]  ? lock_downgrade+0x900/0x900
[  636.454135]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  636.459236]  ? ___ratelimit+0x3b9/0x672
[  636.463231]  ? idr_get_free+0xf70/0xf70
[  636.467211]  ? find_held_lock+0x36/0x1c0
[  636.471289]  oom_kill_process.cold.27+0x10/0x903
[  636.476044]  ? zap_class+0x640/0x640
[  636.479762]  ? check_preemption_disabled+0x48/0x280
[  636.484813]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  636.489763]  ? kasan_check_read+0x11/0x20
[  636.493911]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  636.499188]  ? oom_evaluate_task+0x540/0x540
[  636.503596]  ? find_held_lock+0x36/0x1c0
[  636.507696]  ? out_of_memory+0x974/0x1430
[  636.511842]  ? lock_downgrade+0x900/0x900
[  636.515987]  ? check_preemption_disabled+0x48/0x280
[  636.521000]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  636.525958]  ? kasan_check_read+0x11/0x20
[  636.530099]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  636.535372]  ? rcu_softirq_qs+0x20/0x20
[  636.539347]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  636.544885]  ? oom_evaluate_task+0x302/0x540
[  636.549299]  out_of_memory+0xa84/0x1430
[  636.553446]  ? oom_killer_disable+0x3a0/0x3a0
[  636.557953]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  636.562889]  ? __ww_mutex_check_waiters+0x160/0x160
[  636.567932]  __alloc_pages_slowpath+0x232c/0x2de0
[  636.572810]  ? warn_alloc+0x120/0x120
[  636.576609]  ? mark_held_locks+0x130/0x130
[  636.580849]  ? find_get_entry+0xaae/0x1120
[  636.585091]  ? filemap_map_pages+0x1a20/0x1a20
[  636.589674]  ? zap_class+0x640/0x640
[  636.593390]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  636.598932]  ? check_preemption_disabled+0x48/0x280
[  636.603950]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  636.609486]  ? should_fail+0x22d/0xd01
[  636.613381]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  636.618488]  ? zap_class+0x640/0x640
[  636.622244]  ? __lock_is_held+0xb5/0x140
[  636.626318]  ? mark_held_locks+0x130/0x130
[  636.630555]  ? lock_release+0xa00/0xa00
[  636.634524]  ? perf_trace_sched_process_exec+0x860/0x860
[  636.639968]  ? xa_load+0x2ba/0x460
[  636.643515]  ? lock_downgrade+0x900/0x900
[  636.647664]  ? __might_sleep+0x95/0x190
[  636.651641]  __alloc_pages_nodemask+0xad8/0xea0
[  636.656331]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  636.661349]  ? __page_cache_alloc+0x191/0x5c0
[  636.665843]  ? xa_load+0x2e1/0x460
[  636.669381]  ? xa_clear_mark+0x40/0x40
[  636.673277]  ? zap_class+0x640/0x640
[  636.677001]  ? zap_class+0x640/0x640
[  636.680716]  ? zap_class+0x640/0x640
[  636.684436]  ? __do_page_cache_readahead+0x663/0x810
[  636.690013]  ? find_held_lock+0x36/0x1c0
[  636.694082]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  636.699625]  alloc_pages_current+0x173/0x350
[  636.704040]  __page_cache_alloc+0x38c/0x5c0
[  636.708358]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  636.713292]  ? kasan_check_read+0x11/0x20
[  636.717442]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  636.722722]  ? generic_perform_write+0x6a0/0x6a0
[  636.727499]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  636.733036]  ? check_preemption_disabled+0x48/0x280
[  636.738058]  filemap_fault+0x1595/0x25f0
[  636.742128]  ? __lock_page_or_retry+0xa00/0xa00
[  636.746816]  ? mark_held_locks+0x130/0x130
[  636.751072]  ? filemap_map_pages+0xd6b/0x1a20
[  636.755568]  ? lock_downgrade+0x900/0x900
[  636.759714]  ? check_preemption_disabled+0x48/0x280
[  636.764750]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  636.769678]  ? kasan_check_read+0x11/0x20
[  636.773821]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  636.779101]  ? rcu_softirq_qs+0x20/0x20
[  636.783090]  ? filemap_map_pages+0xd92/0x1a20
[  636.787586]  ? print_usage_bug+0xc0/0xc0
[  636.791649]  ? find_get_entries_tag+0x1400/0x1400
[  636.796485]  ? __kasan_slab_free+0x102/0x150
[  636.800904]  ? kasan_slab_free+0xe/0x10
[  636.804875]  ? kmem_cache_free+0x83/0x290
[  636.809022]  ? __sigqueue_free.part.29+0x74/0x90
[  636.813796]  ? lock_acquire+0x1ed/0x520
[  636.817775]  ? ext4_filemap_fault+0x7a/0xad
[  636.822104]  ? lock_release+0xa00/0xa00
[  636.826092]  ? perf_trace_sched_process_exec+0x860/0x860
[  636.831542]  ? print_usage_bug+0xc0/0xc0
[  636.835602]  ? print_usage_bug+0xc0/0xc0
[  636.839669]  ? down_read+0x8d/0x120
[  636.843293]  ? ext4_filemap_fault+0x7a/0xad
[  636.847608]  ? __down_interruptible+0x700/0x700
[  636.852286]  ext4_filemap_fault+0x82/0xad
[  636.856436]  __do_fault+0x100/0x6b0
[  636.860068]  ? pmd_devmap_trans_unstable+0x220/0x220
[  636.865175]  ? mark_held_locks+0x130/0x130
[  636.869405]  ? mark_held_locks+0x130/0x130
[  636.873656]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  636.879189]  ? rcu_pm_notify+0xc0/0xc0
[  636.883078]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  636.888630]  __handle_mm_fault+0x3ea0/0x5be0
[  636.893055]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  636.897897]  ? _raw_spin_unlock_irq+0x27/0x80
[  636.902397]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  636.906983]  ? trace_hardirqs_on+0xbd/0x310
[  636.911302]  ? kasan_check_read+0x11/0x20
[  636.915453]  ? __set_current_blocked+0xdf/0x120
[  636.920120]  ? trace_hardirqs_off_caller+0x310/0x310
[  636.925246]  ? zap_class+0x640/0x640
[  636.928977]  ? zap_class+0x640/0x640
[  636.932699]  ? find_held_lock+0x36/0x1c0
[  636.936775]  ? handle_mm_fault+0x42a/0xc70
[  636.941011]  ? lock_downgrade+0x900/0x900
[  636.945190]  ? check_preemption_disabled+0x48/0x280
[  636.950219]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  636.955146]  ? kasan_check_read+0x11/0x20
[  636.959298]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  636.964570]  ? rcu_softirq_qs+0x20/0x20
[  636.968545]  ? trace_hardirqs_off_caller+0x310/0x310
[  636.973647]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  636.979213]  ? check_preemption_disabled+0x48/0x280
[  636.984251]  handle_mm_fault+0x54f/0xc70
[  636.988336]  ? __handle_mm_fault+0x5be0/0x5be0
[  636.992921]  ? find_vma+0x34/0x190
[  636.996463]  __do_page_fault+0x5e8/0xe60
[  637.000539]  ? exit_to_usermode_loop+0x1f4/0x380
[  637.005301]  do_page_fault+0xf2/0x7e0
[  637.009120]  ? vmalloc_sync_all+0x30/0x30
[  637.013296]  ? error_entry+0x70/0xd0
[  637.017011]  ? trace_hardirqs_off_caller+0xbb/0x310
[  637.022021]  ? trace_hardirqs_on_caller+0xc0/0x310
[  637.026943]  ? syscall_return_slowpath+0x5e0/0x5e0
[  637.031868]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  637.036710]  ? trace_hardirqs_on_caller+0x310/0x310
[  637.041743]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  637.047198]  ? prepare_exit_to_usermode+0x291/0x3b0
[  637.052229]  ? page_fault+0x8/0x30
[  637.055806]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  637.060647]  ? page_fault+0x8/0x30
[  637.064190]  page_fault+0x1e/0x30
[  637.067651] RIP: 0033:0x45db60
[  637.070856] Code: Bad RIP value.
[  637.074213] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  637.079568] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  637.086828] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  637.094089] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  637.101351] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  637.108617] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  637.115908] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  637.115913] warn_alloc_show_mem: 1 callbacks suppressed
[  637.115919] Mem-Info:
[  637.122764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  637.128134] active_anon:42936 inactive_anon:306 isolated_anon:0
[  637.128134]  active_file:13 inactive_file:13 isolated_file:0
[  637.128134]  unevictable:0 dirty:0 writeback:0 unstable:0
[  637.128134]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  637.128134]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  637.128134]  free:13785 free_pcp:492 free_cma:0
[  637.130504] Call Trace:
[  637.139893] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  637.172653]  dump_stack+0x244/0x39d
[  637.175209] 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
[  637.202804]  ? dump_stack_print_info.cold.1+0x20/0x20
[  637.206401] lowmem_reserve[]: 0 2818 6321 6321
[  637.232507]  warn_alloc.cold.116+0xb7/0x1bd
[  637.237657] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  637.242241]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  637.246533] lowmem_reserve[]: 0 0 3503 3503
[  637.273675]  ? lock_downgrade+0x900/0x900
[  637.278489] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  637.282811]  ? trace_hardirqs_off+0xb8/0x310
[  637.286927] lowmem_reserve[]: 0 0 0 0
[  637.316108]  ? trace_hardirqs_off+0xb8/0x310
[  637.320509] 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
[  637.324324]  __alloc_pages_slowpath+0x2651/0x2de0
[  637.328700] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  637.342254]  ? warn_alloc+0x120/0x120
[  637.347046] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  637.362210]  ? print_usage_bug+0xc0/0xc0
[  637.365999] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  637.381155]  ? warn_alloc+0x120/0x120
[  637.385194] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  637.394016]  ? warn_alloc+0x120/0x120
[  637.397790] 380 total pagecache pages
[  637.406363]  ? print_usage_bug+0xc0/0xc0
[  637.410159] 0 pages in swap cache
[  637.413944]  ? print_usage_bug+0xc0/0xc0
[  637.417997] Swap cache stats: add 0, delete 0, find 0/0
[  637.421452]  ? __lock_acquire+0x62f/0x4c20
[  637.425515] Free swap  = 0kB
[  637.430870]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  637.435089] Total swap = 0kB
[  637.438100]  ? should_fail+0x22d/0xd01
[  637.443607] 1965979 pages RAM
[  637.446617]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  637.450474] 0 pages HighMem/MovableOnly
[  637.453577]  ? __lock_acquire+0x62f/0x4c20
[  637.458654] 342854 pages reserved
[  637.462636]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  637.466841] 0 pages cma reserved
[  637.470284]  ? __lock_acquire+0x62f/0x4c20
[  637.475416] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  637.478712]  ? should_fail+0x22d/0xd01
[  637.478727]  ? find_held_lock+0x36/0x1c0
[  637.478763]  ? mark_held_locks+0x130/0x130
[  637.483036] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  637.489491]  ? mark_held_locks+0x130/0x130
[  637.493353] syz-fuzzer cpuset=/ mems_allowed=0
[  637.497403]  ? zap_class+0x640/0x640
[  637.524338]  ? mark_held_locks+0xc7/0x130
[  637.528484]  ? do_raw_spin_unlock+0xa7/0x330
[  637.532907]  ? zap_class+0x640/0x640
[  637.536621]  ? print_usage_bug+0xc0/0xc0
[  637.540697]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  637.546252]  ? check_preemption_disabled+0x48/0x280
[  637.551289]  ? __lock_is_held+0xb5/0x140
[  637.555358]  __alloc_pages_nodemask+0xad8/0xea0
[  637.560025]  ? zap_class+0x640/0x640
[  637.563749]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  637.568786]  ? find_held_lock+0x36/0x1c0
[  637.572875]  ? ____cache_alloc_node+0x1c7/0x1e0
[  637.577546]  ? lock_downgrade+0x900/0x900
[  637.581703]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  637.587249]  cache_grow_begin+0xa5/0x8c0
[  637.591306]  ? do_raw_spin_unlock+0xa7/0x330
[  637.595764]  fallback_alloc+0x204/0x2e0
[  637.599750]  ____cache_alloc_node+0x1c7/0x1e0
[  637.604259]  kmem_cache_alloc_node+0xe3/0x730
[  637.608768]  ? ipv6_get_ifaddr+0x42e/0x620
[  637.613061]  __alloc_skb+0x119/0x770
[  637.616781]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  637.622064]  ? netdev_alloc_frag+0x1f0/0x1f0
[  637.626486]  ? lock_downgrade+0x900/0x900
[  637.630639]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  637.636174]  ? refcount_sub_and_test_checked+0x203/0x310
[  637.641627]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  637.647090]  ? addrconf_rs_timer+0x690/0x690
[  637.651526]  ndisc_alloc_skb+0x144/0x340
[  637.655589]  ndisc_send_rs+0x331/0x6e0
[  637.659486]  addrconf_rs_timer+0x314/0x690
[  637.663725]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  637.668000]  call_timer_fn+0x272/0x920
[  637.671887]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  637.676124]  ? process_timeout+0x40/0x40
[  637.680192]  ? __run_timers+0x7da/0xc70
[  637.684169]  ? _raw_spin_unlock_irq+0x27/0x80
[  637.688676]  ? _raw_spin_unlock_irq+0x27/0x80
[  637.693184]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  637.697418]  ? lockdep_hardirqs_on+0x296/0x5b0
[  637.702028]  ? trace_hardirqs_on+0xbd/0x310
[  637.706378]  ? kasan_check_read+0x11/0x20
[  637.710535]  ? __run_timers+0x7da/0xc70
[  637.714524]  ? trace_hardirqs_off_caller+0x310/0x310
[  637.719644]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  637.723882]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  637.728108]  __run_timers+0x7e5/0xc70
[  637.731916]  ? timer_fixup_init+0x70/0x70
[  637.736060]  ? _raw_spin_unlock_irq+0x27/0x80
[  637.740553]  ? _raw_spin_unlock_irq+0x27/0x80
[  637.745045]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  637.749640]  ? trace_hardirqs_on+0xbd/0x310
[  637.753986]  ? kasan_check_read+0x11/0x20
[  637.758133]  ? finish_task_switch+0x1f4/0x910
[  637.762628]  ? trace_hardirqs_off_caller+0x310/0x310
[  637.767752]  ? compat_start_thread+0x80/0x80
[  637.772192]  ? pvclock_read_flags+0x160/0x160
[  637.776680]  ? __switch_to_asm+0x34/0x70
[  637.780746]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  637.786297]  ? check_preemption_disabled+0x48/0x280
[  637.791322]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  637.796861]  ? rcu_pm_notify+0xc0/0xc0
[  637.800773]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  637.806341]  ? check_preemption_disabled+0x48/0x280
[  637.811359]  run_timer_softirq+0x52/0xb0
[  637.815422]  ? rcu_read_lock_sched_held+0x14f/0x180
[  637.820437]  __do_softirq+0x308/0xb7e
[  637.824274]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  637.829035]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  637.834134]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  637.839580]  ? trace_hardirqs_on+0x310/0x310
[  637.843989]  ? schedule+0x108/0x460
[  637.847621]  ? trace_hardirqs_off+0xb8/0x310
[  637.852030]  ? smpboot_thread_fn+0x68b/0xa00
[  637.856439]  ? trace_hardirqs_on+0x310/0x310
[  637.860849]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  637.866385]  ? check_preemption_disabled+0x48/0x280
[  637.871434]  ? takeover_tasklets+0xa90/0xa90
[  637.875842]  run_ksoftirqd+0x5e/0x100
[  637.879639]  smpboot_thread_fn+0x68b/0xa00
[  637.883890]  ? sort_range+0x30/0x30
[  637.887513]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  637.892631]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  637.898164]  ? __kthread_parkme+0xfb/0x1a0
[  637.902414]  ? sort_range+0x30/0x30
[  637.906037]  kthread+0x35a/0x440
[  637.909404]  ? kthread_stop+0x900/0x900
[  637.913376]  ret_from_fork+0x3a/0x50
[  637.917105] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  637.917166] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  637.924128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  637.924133] Call Trace:
[  637.924139]  <IRQ>
[  637.924156]  dump_stack+0x244/0x39d
[  637.924174]  ? dump_stack_print_info.cold.1+0x20/0x20
[  637.930731] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  637.940012]  warn_alloc.cold.116+0xb7/0x1bd
[  637.942562] ksoftirqd/0 cpuset=/ mems_allowed=0
[  637.944721]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  637.977583]  ? lock_downgrade+0x900/0x900
[  637.981734]  ? trace_hardirqs_off+0xb8/0x310
[  637.986162]  ? trace_hardirqs_off+0xb8/0x310
[  637.990590]  __alloc_pages_slowpath+0x2651/0x2de0
[  637.995458]  ? warn_alloc+0x120/0x120
[  637.999265]  ? print_usage_bug+0xc0/0xc0
[  638.003329]  ? warn_alloc+0x120/0x120
[  638.007134]  ? warn_alloc+0x120/0x120
[  638.010939]  ? print_usage_bug+0xc0/0xc0
[  638.015003]  ? print_usage_bug+0xc0/0xc0
[  638.019066]  ? __lock_acquire+0x62f/0x4c20
[  638.023304]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  638.028840]  ? should_fail+0x22d/0xd01
[  638.032731]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  638.037868]  ? __lock_acquire+0x62f/0x4c20
[  638.042120]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  638.047217]  ? __lock_acquire+0x62f/0x4c20
[  638.051446]  ? should_fail+0x22d/0xd01
[  638.055337]  ? find_held_lock+0x36/0x1c0
[  638.059405]  ? mark_held_locks+0x130/0x130
[  638.063642]  ? mark_held_locks+0x130/0x130
[  638.067871]  ? zap_class+0x640/0x640
[  638.071583]  ? zap_class+0x640/0x640
[  638.075303]  ? print_usage_bug+0xc0/0xc0
[  638.079359]  ? do_raw_spin_unlock+0xa7/0x330
[  638.083770]  ? zap_class+0x640/0x640
[  638.087485]  ? print_usage_bug+0xc0/0xc0
[  638.091562]  ? wq_watchdog_touch+0x9c/0xfe
[  638.095795]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  638.101328]  ? check_preemption_disabled+0x48/0x280
[  638.106349]  ? __lock_is_held+0xb5/0x140
[  638.110428]  __alloc_pages_nodemask+0xad8/0xea0
[  638.115093]  ? zap_class+0x640/0x640
[  638.118812]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  638.123842]  ? find_held_lock+0x36/0x1c0
[  638.127912]  ? ____cache_alloc_node+0x1c7/0x1e0
[  638.132581]  ? lock_downgrade+0x900/0x900
[  638.136732]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  638.142284]  cache_grow_begin+0xa5/0x8c0
[  638.146340]  ? do_raw_spin_unlock+0xa7/0x330
[  638.150764]  fallback_alloc+0x204/0x2e0
[  638.154752]  ____cache_alloc_node+0x1c7/0x1e0
[  638.159272]  kmem_cache_alloc_node+0xe3/0x730
[  638.163770]  ? ipv6_get_ifaddr+0x42e/0x620
[  638.168028]  __alloc_skb+0x119/0x770
[  638.171830]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  638.177126]  ? netdev_alloc_frag+0x1f0/0x1f0
[  638.181533]  ? lock_downgrade+0x900/0x900
[  638.185689]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  638.191225]  ? refcount_sub_and_test_checked+0x203/0x310
[  638.196675]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  638.202122]  ? addrconf_rs_timer+0x690/0x690
[  638.206553]  ndisc_alloc_skb+0x144/0x340
[  638.210617]  ndisc_send_rs+0x331/0x6e0
[  638.214521]  addrconf_rs_timer+0x314/0x690
[  638.218767]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  638.223012]  call_timer_fn+0x272/0x920
[  638.226903]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  638.231166]  ? process_timeout+0x40/0x40
[  638.235274]  ? mark_held_locks+0xc7/0x130
[  638.239437]  ? _raw_spin_unlock_irq+0x27/0x80
[  638.243935]  ? _raw_spin_unlock_irq+0x27/0x80
[  638.248428]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  638.252660]  ? lockdep_hardirqs_on+0x296/0x5b0
[  638.257242]  ? trace_hardirqs_on+0xbd/0x310
[  638.261577]  ? kasan_check_read+0x11/0x20
[  638.265718]  ? __run_timers+0x7da/0xc70
[  638.269696]  ? trace_hardirqs_off_caller+0x310/0x310
[  638.274803]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  638.279046]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  638.283281]  __run_timers+0x7e5/0xc70
[  638.287121]  ? timer_fixup_init+0x70/0x70
[  638.291287]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  638.296308]  ? zap_class+0x640/0x640
[  638.300030]  ? print_usage_bug+0xc0/0xc0
[  638.304109]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  638.309309]  ? find_held_lock+0x36/0x1c0
[  638.313377]  ? zap_class+0x640/0x640
[  638.317095]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  638.322678]  ? check_preemption_disabled+0x48/0x280
[  638.327700]  ? __lock_is_held+0xb5/0x140
[  638.331781]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  638.337331]  ? check_preemption_disabled+0x48/0x280
[  638.342349]  run_timer_softirq+0x52/0xb0
[  638.346406]  ? rcu_read_lock_sched_held+0x14f/0x180
[  638.351419]  __do_softirq+0x308/0xb7e
[  638.355218]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  638.359712]  ? lock_downgrade+0x900/0x900
[  638.363880]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  638.369011]  ? pvclock_read_flags+0x160/0x160
[  638.373535]  ? lapic_next_event+0x5a/0x90
[  638.377685]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  638.383225]  ? kvm_clock_read+0x18/0x30
[  638.387205]  ? kvm_sched_clock_read+0x9/0x20
[  638.391631]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  638.397168]  ? check_preemption_disabled+0x48/0x280
[  638.402193]  irq_exit+0x17f/0x1c0
[  638.405663]  smp_apic_timer_interrupt+0x1cb/0x760
[  638.410502]  ? smp_reschedule_interrupt+0x109/0x650
[  638.415520]  ? smp_call_function_single_interrupt+0x650/0x650
[  638.421400]  ? interrupt_entry+0xb5/0xc0
[  638.425458]  ? trace_hardirqs_off_caller+0xbb/0x310
[  638.430474]  ? trace_hardirqs_off_caller+0xbb/0x310
[  638.435507]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  638.440367]  ? trace_hardirqs_on_caller+0x310/0x310
[  638.445382]  ? trace_hardirqs_on_caller+0x310/0x310
[  638.450399]  ? task_prio+0x50/0x50
[  638.453943]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  638.459482]  ? check_preemption_disabled+0x48/0x280
[  638.464501]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  638.469381]  apic_timer_interrupt+0xf/0x20
[  638.473636]  </IRQ>
[  638.475891] RIP: 0010:dump_stack+0x358/0x39d
[  638.480297] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  638.499228] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  638.506978] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  638.514247] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  638.521533] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  638.528802] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  638.536066] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  638.543350]  ? dump_stack+0x34f/0x39d
[  638.547176]  ? dump_stack_print_info.cold.1+0x20/0x20
[  638.552382]  ? mark_held_locks+0x130/0x130
[  638.556805]  ? mark_held_locks+0x130/0x130
[  638.561046]  dump_header+0x27b/0xf72
[  638.564775]  ? pagefault_out_of_memory+0x197/0x197
[  638.569714]  ? __lock_acquire+0x62f/0x4c20
[  638.573958]  ? percpu_ref_get_many+0x240/0x240
[  638.578541]  ? print_usage_bug+0xc0/0xc0
[  638.582606]  ? zap_class+0x640/0x640
[  638.586316]  ? print_usage_bug+0xc0/0xc0
[  638.590372]  ? print_usage_bug+0xc0/0xc0
[  638.594437]  ? zap_class+0x640/0x640
[  638.598171]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  638.603715]  ? find_held_lock+0x36/0x1c0
[  638.607799]  ? mark_held_locks+0xc7/0x130
[  638.611949]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  638.617048]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  638.622152]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  638.626734]  ? trace_hardirqs_on+0xbd/0x310
[  638.631081]  ? kasan_check_read+0x11/0x20
[  638.635225]  ? ___ratelimit+0x3b4/0x672
[  638.639208]  ? trace_hardirqs_off_caller+0x310/0x310
[  638.644310]  ? trace_hardirqs_on+0x310/0x310
[  638.648715]  ? lock_downgrade+0x900/0x900
[  638.652889]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  638.658008]  ? ___ratelimit+0x3b9/0x672
[  638.661988]  ? idr_get_free+0xf70/0xf70
[  638.665959]  ? find_held_lock+0x36/0x1c0
[  638.670030]  oom_kill_process.cold.27+0x10/0x903
[  638.674787]  ? zap_class+0x640/0x640
[  638.678506]  ? check_preemption_disabled+0x48/0x280
[  638.683530]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  638.688969]  ? kasan_check_read+0x11/0x20
[  638.693123]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  638.698403]  ? oom_evaluate_task+0x540/0x540
[  638.702814]  ? find_held_lock+0x36/0x1c0
[  638.706880]  ? out_of_memory+0x974/0x1430
[  638.711032]  ? lock_downgrade+0x900/0x900
[  638.715177]  ? check_preemption_disabled+0x48/0x280
[  638.720222]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  638.725164]  ? kasan_check_read+0x11/0x20
[  638.729313]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  638.734587]  ? rcu_softirq_qs+0x20/0x20
[  638.738564]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  638.744096]  ? oom_evaluate_task+0x302/0x540
[  638.748507]  out_of_memory+0xa84/0x1430
[  638.752492]  ? oom_killer_disable+0x3a0/0x3a0
[  638.756986]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  638.761931]  ? __ww_mutex_check_waiters+0x160/0x160
[  638.766961]  __alloc_pages_slowpath+0x232c/0x2de0
[  638.771837]  ? warn_alloc+0x120/0x120
[  638.775651]  ? mark_held_locks+0x130/0x130
[  638.779891]  ? find_get_entry+0xaae/0x1120
[  638.784150]  ? filemap_map_pages+0x1a20/0x1a20
[  638.788745]  ? zap_class+0x640/0x640
[  638.792461]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  638.798012]  ? check_preemption_disabled+0x48/0x280
[  638.803054]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  638.808588]  ? should_fail+0x22d/0xd01
[  638.812547]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  638.817661]  ? zap_class+0x640/0x640
[  638.821415]  ? __lock_is_held+0xb5/0x140
[  638.825486]  ? mark_held_locks+0x130/0x130
[  638.829720]  ? lock_release+0xa00/0xa00
[  638.833699]  ? perf_trace_sched_process_exec+0x860/0x860
[  638.839181]  ? xa_load+0x2ba/0x460
[  638.842725]  ? lock_downgrade+0x900/0x900
[  638.846900]  ? __might_sleep+0x95/0x190
[  638.850897]  __alloc_pages_nodemask+0xad8/0xea0
[  638.855570]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  638.860586]  ? __page_cache_alloc+0x191/0x5c0
[  638.865076]  ? xa_load+0x2e1/0x460
[  638.868615]  ? xa_clear_mark+0x40/0x40
[  638.872502]  ? zap_class+0x640/0x640
[  638.876237]  ? zap_class+0x640/0x640
[  638.879964]  ? zap_class+0x640/0x640
[  638.883677]  ? __do_page_cache_readahead+0x663/0x810
[  638.888799]  ? find_held_lock+0x36/0x1c0
[  638.892863]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  638.898407]  alloc_pages_current+0x173/0x350
[  638.902830]  __page_cache_alloc+0x38c/0x5c0
[  638.907148]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  638.912091]  ? kasan_check_read+0x11/0x20
[  638.916241]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  638.921586]  ? generic_perform_write+0x6a0/0x6a0
[  638.926341]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  638.931894]  ? check_preemption_disabled+0x48/0x280
[  638.936921]  filemap_fault+0x1595/0x25f0
[  638.941011]  ? __lock_page_or_retry+0xa00/0xa00
[  638.945683]  ? mark_held_locks+0x130/0x130
[  638.949938]  ? filemap_map_pages+0xd6b/0x1a20
[  638.954450]  ? lock_downgrade+0x900/0x900
[  638.958598]  ? check_preemption_disabled+0x48/0x280
[  638.963620]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  638.968546]  ? kasan_check_read+0x11/0x20
[  638.972693]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  638.977967]  ? rcu_softirq_qs+0x20/0x20
[  638.981952]  ? filemap_map_pages+0xd92/0x1a20
[  638.986451]  ? print_usage_bug+0xc0/0xc0
[  638.990534]  ? find_get_entries_tag+0x1400/0x1400
[  638.995419]  ? __kasan_slab_free+0x102/0x150
[  638.999828]  ? kasan_slab_free+0xe/0x10
[  639.003800]  ? kmem_cache_free+0x83/0x290
[  639.007948]  ? __sigqueue_free.part.29+0x74/0x90
[  639.012721]  ? lock_acquire+0x1ed/0x520
[  639.016703]  ? ext4_filemap_fault+0x7a/0xad
[  639.021036]  ? lock_release+0xa00/0xa00
[  639.025008]  ? perf_trace_sched_process_exec+0x860/0x860
[  639.030459]  ? print_usage_bug+0xc0/0xc0
[  639.034519]  ? print_usage_bug+0xc0/0xc0
[  639.038588]  ? down_read+0x8d/0x120
[  639.042212]  ? ext4_filemap_fault+0x7a/0xad
[  639.046531]  ? __down_interruptible+0x700/0x700
[  639.051204]  ext4_filemap_fault+0x82/0xad
[  639.055351]  __do_fault+0x100/0x6b0
[  639.058981]  ? pmd_devmap_trans_unstable+0x220/0x220
[  639.064091]  ? mark_held_locks+0x130/0x130
[  639.068329]  ? mark_held_locks+0x130/0x130
[  639.072563]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  639.078128]  ? rcu_pm_notify+0xc0/0xc0
[  639.082020]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  639.087563]  __handle_mm_fault+0x3ea0/0x5be0
[  639.091981]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  639.096835]  ? _raw_spin_unlock_irq+0x27/0x80
[  639.101329]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  639.105931]  ? trace_hardirqs_on+0xbd/0x310
[  639.110249]  ? kasan_check_read+0x11/0x20
[  639.114416]  ? __set_current_blocked+0xdf/0x120
[  639.119086]  ? trace_hardirqs_off_caller+0x310/0x310
[  639.124201]  ? zap_class+0x640/0x640
[  639.127912]  ? zap_class+0x640/0x640
[  639.131635]  ? find_held_lock+0x36/0x1c0
[  639.135708]  ? handle_mm_fault+0x42a/0xc70
[  639.139954]  ? lock_downgrade+0x900/0x900
[  639.144106]  ? check_preemption_disabled+0x48/0x280
[  639.149123]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  639.154078]  ? kasan_check_read+0x11/0x20
[  639.158222]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  639.163493]  ? rcu_softirq_qs+0x20/0x20
[  639.167467]  ? trace_hardirqs_off_caller+0x310/0x310
[  639.172569]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  639.178108]  ? check_preemption_disabled+0x48/0x280
[  639.183130]  handle_mm_fault+0x54f/0xc70
[  639.187210]  ? __handle_mm_fault+0x5be0/0x5be0
[  639.191812]  ? find_vma+0x34/0x190
[  639.195355]  __do_page_fault+0x5e8/0xe60
[  639.199415]  ? exit_to_usermode_loop+0x1f4/0x380
[  639.204180]  do_page_fault+0xf2/0x7e0
[  639.207978]  ? vmalloc_sync_all+0x30/0x30
[  639.212124]  ? error_entry+0x70/0xd0
[  639.215839]  ? trace_hardirqs_off_caller+0xbb/0x310
[  639.220852]  ? trace_hardirqs_on_caller+0xc0/0x310
[  639.225780]  ? syscall_return_slowpath+0x5e0/0x5e0
[  639.230707]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  639.235560]  ? trace_hardirqs_on_caller+0x310/0x310
[  639.240576]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  639.246029]  ? prepare_exit_to_usermode+0x291/0x3b0
[  639.251046]  ? page_fault+0x8/0x30
[  639.254593]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  639.259438]  ? page_fault+0x8/0x30
[  639.262979]  page_fault+0x1e/0x30
[  639.266427] RIP: 0033:0x45db60
[  639.269632] Code: Bad RIP value.
[  639.272991] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  639.278350] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  639.285614] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  639.292880] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  639.300146] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  639.307424] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  639.314725] warn_alloc_show_mem: 1 callbacks suppressed
[  639.314744] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  639.314746] Mem-Info:
[  639.314776] active_anon:42936 inactive_anon:306 isolated_anon:0
[  639.314776]  active_file:13 inactive_file:13 isolated_file:0
[  639.314776]  unevictable:0 dirty:0 writeback:0 unstable:0
[  639.314776]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  639.314776]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  639.314776]  free:13785 free_pcp:492 free_cma:0
[  639.320136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  639.326978] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  639.329371] Call Trace:
[  639.362157] 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
[  639.371525]  dump_stack+0x244/0x39d
[  639.399093] lowmem_reserve[]: 0 2818 6321 6321
[  639.401670]  ? dump_stack_print_info.cold.1+0x20/0x20
[  639.427756] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  639.431395]  warn_alloc.cold.116+0xb7/0x1bd
[  639.435940] lowmem_reserve[]: 0 0 3503 3503
[  639.441123]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  639.468250] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  639.472581]  ? lock_downgrade+0x900/0x900
[  639.476877] lowmem_reserve[]: 0 0 0 0
[  639.481715]  ? trace_hardirqs_off+0xb8/0x310
[  639.510833] 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
[  639.514978]  ? trace_hardirqs_off+0xb8/0x310
[  639.518755] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  639.523163]  __alloc_pages_slowpath+0x2651/0x2de0
[  639.536656] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  639.541081]  ? warn_alloc+0x120/0x120
[  639.556207] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  639.561035]  ? print_usage_bug+0xc0/0xc0
[  639.576186] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  639.579974]  ? warn_alloc+0x120/0x120
[  639.588784] 380 total pagecache pages
[  639.592834]  ? warn_alloc+0x120/0x120
[  639.601387] 0 pages in swap cache
[  639.605170]  ? print_usage_bug+0xc0/0xc0
[  639.608946] Swap cache stats: add 0, delete 0, find 0/0
[  639.612762]  ? print_usage_bug+0xc0/0xc0
[  639.616185] Free swap  = 0kB
[  639.620241]  ? __lock_acquire+0x62f/0x4c20
[  639.625574] Total swap = 0kB
[  639.629643]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  639.632631] 1965979 pages RAM
[  639.636869]  ? should_fail+0x22d/0xd01
[  639.639876] 0 pages HighMem/MovableOnly
[  639.645402]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  639.648477] 342854 pages reserved
[  639.652370]  ? __lock_acquire+0x62f/0x4c20
[  639.656318] 0 pages cma reserved
[  639.661425]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  639.664923] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  639.669073]  ? __lock_acquire+0x62f/0x4c20
[  639.669086]  ? should_fail+0x22d/0xd01
[  639.669115]  ? find_held_lock+0x36/0x1c0
[  639.669136]  ? mark_held_locks+0x130/0x130
[  639.672536] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  639.677573]  ? mark_held_locks+0x130/0x130
[  639.684043] syz-fuzzer cpuset=/ mems_allowed=0
[  639.688287]  ? zap_class+0x640/0x640
[  639.723120]  ? mark_held_locks+0xc7/0x130
[  639.727283]  ? do_raw_spin_unlock+0xa7/0x330
[  639.731691]  ? zap_class+0x640/0x640
[  639.735402]  ? print_usage_bug+0xc0/0xc0
[  639.739481]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  639.745049]  ? check_preemption_disabled+0x48/0x280
[  639.750088]  ? __lock_is_held+0xb5/0x140
[  639.754153]  __alloc_pages_nodemask+0xad8/0xea0
[  639.758821]  ? zap_class+0x640/0x640
[  639.762539]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  639.767581]  ? find_held_lock+0x36/0x1c0
[  639.771655]  ? ____cache_alloc_node+0x1c7/0x1e0
[  639.776324]  ? lock_downgrade+0x900/0x900
[  639.780475]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  639.786017]  cache_grow_begin+0xa5/0x8c0
[  639.790090]  ? do_raw_spin_unlock+0xa7/0x330
[  639.794503]  fallback_alloc+0x204/0x2e0
[  639.798483]  ____cache_alloc_node+0x1c7/0x1e0
[  639.802984]  kmem_cache_alloc_node+0xe3/0x730
[  639.807486]  ? ipv6_get_ifaddr+0x42e/0x620
[  639.811734]  __alloc_skb+0x119/0x770
[  639.815457]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  639.820744]  ? netdev_alloc_frag+0x1f0/0x1f0
[  639.825169]  ? lock_downgrade+0x900/0x900
[  639.829320]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  639.834856]  ? refcount_sub_and_test_checked+0x203/0x310
[  639.840309]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  639.845771]  ? addrconf_rs_timer+0x690/0x690
[  639.850205]  ndisc_alloc_skb+0x144/0x340
[  639.854283]  ndisc_send_rs+0x331/0x6e0
[  639.858175]  addrconf_rs_timer+0x314/0x690
[  639.862416]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  639.866659]  call_timer_fn+0x272/0x920
[  639.870558]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  639.874806]  ? process_timeout+0x40/0x40
[  639.878878]  ? __run_timers+0x7da/0xc70
[  639.882856]  ? _raw_spin_unlock_irq+0x27/0x80
[  639.887352]  ? _raw_spin_unlock_irq+0x27/0x80
[  639.891843]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  639.896092]  ? lockdep_hardirqs_on+0x296/0x5b0
[  639.900675]  ? trace_hardirqs_on+0xbd/0x310
[  639.904998]  ? kasan_check_read+0x11/0x20
[  639.909146]  ? __run_timers+0x7da/0xc70
[  639.913122]  ? trace_hardirqs_off_caller+0x310/0x310
[  639.918246]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  639.922563]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  639.926799]  __run_timers+0x7e5/0xc70
[  639.930623]  ? timer_fixup_init+0x70/0x70
[  639.934784]  ? _raw_spin_unlock_irq+0x27/0x80
[  639.939291]  ? _raw_spin_unlock_irq+0x27/0x80
[  639.943789]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  639.948373]  ? trace_hardirqs_on+0xbd/0x310
[  639.952692]  ? kasan_check_read+0x11/0x20
[  639.956842]  ? finish_task_switch+0x1f4/0x910
[  639.961333]  ? trace_hardirqs_off_caller+0x310/0x310
[  639.966434]  ? compat_start_thread+0x80/0x80
[  639.970860]  ? pvclock_read_flags+0x160/0x160
[  639.975354]  ? __switch_to_asm+0x34/0x70
[  639.979414]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  639.984951]  ? check_preemption_disabled+0x48/0x280
[  639.989978]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  639.995532]  ? rcu_pm_notify+0xc0/0xc0
[  639.999419]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  640.004958]  ? check_preemption_disabled+0x48/0x280
[  640.009991]  run_timer_softirq+0x52/0xb0
[  640.014063]  ? rcu_read_lock_sched_held+0x14f/0x180
[  640.019080]  __do_softirq+0x308/0xb7e
[  640.022884]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  640.027641]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  640.032754]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  640.038206]  ? trace_hardirqs_on+0x310/0x310
[  640.042617]  ? schedule+0x108/0x460
[  640.046252]  ? trace_hardirqs_off+0xb8/0x310
[  640.050660]  ? smpboot_thread_fn+0x68b/0xa00
[  640.055069]  ? trace_hardirqs_on+0x310/0x310
[  640.059489]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  640.065031]  ? check_preemption_disabled+0x48/0x280
[  640.070046]  ? takeover_tasklets+0xa90/0xa90
[  640.074453]  run_ksoftirqd+0x5e/0x100
[  640.078253]  smpboot_thread_fn+0x68b/0xa00
[  640.082494]  ? sort_range+0x30/0x30
[  640.086133]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  640.091235]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  640.096782]  ? __kthread_parkme+0xfb/0x1a0
[  640.101018]  ? sort_range+0x30/0x30
[  640.104643]  kthread+0x35a/0x440
[  640.108011]  ? kthread_stop+0x900/0x900
[  640.111987]  ret_from_fork+0x3a/0x50
[  640.115760] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  640.115838] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  640.122767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  640.122772] Call Trace:
[  640.122787]  <IRQ>
[  640.122806]  dump_stack+0x244/0x39d
[  640.122825]  ? dump_stack_print_info.cold.1+0x20/0x20
[  640.129395] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  640.138653]  warn_alloc.cold.116+0xb7/0x1bd
[  640.141211] ksoftirqd/0 cpuset=/ mems_allowed=0
[  640.143354]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  640.176204]  ? lock_downgrade+0x900/0x900
[  640.180359]  ? trace_hardirqs_off+0xb8/0x310
[  640.184774]  ? trace_hardirqs_off+0xb8/0x310
[  640.189190]  __alloc_pages_slowpath+0x2651/0x2de0
[  640.194070]  ? warn_alloc+0x120/0x120
[  640.197871]  ? print_usage_bug+0xc0/0xc0
[  640.201950]  ? warn_alloc+0x120/0x120
[  640.205773]  ? warn_alloc+0x120/0x120
[  640.209575]  ? print_usage_bug+0xc0/0xc0
[  640.213638]  ? print_usage_bug+0xc0/0xc0
[  640.217702]  ? __lock_acquire+0x62f/0x4c20
[  640.221960]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  640.227498]  ? should_fail+0x22d/0xd01
[  640.231390]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  640.236495]  ? __lock_acquire+0x62f/0x4c20
[  640.240745]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  640.245845]  ? __lock_acquire+0x62f/0x4c20
[  640.250075]  ? should_fail+0x22d/0xd01
[  640.253961]  ? find_held_lock+0x36/0x1c0
[  640.258048]  ? mark_held_locks+0x130/0x130
[  640.262316]  ? mark_held_locks+0x130/0x130
[  640.266544]  ? zap_class+0x640/0x640
[  640.270264]  ? zap_class+0x640/0x640
[  640.273977]  ? print_usage_bug+0xc0/0xc0
[  640.278033]  ? do_raw_spin_unlock+0xa7/0x330
[  640.282456]  ? zap_class+0x640/0x640
[  640.286168]  ? print_usage_bug+0xc0/0xc0
[  640.290240]  ? wq_watchdog_touch+0x9c/0xfe
[  640.294482]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  640.300031]  ? check_preemption_disabled+0x48/0x280
[  640.305073]  ? __lock_is_held+0xb5/0x140
[  640.309166]  __alloc_pages_nodemask+0xad8/0xea0
[  640.313831]  ? zap_class+0x640/0x640
[  640.317553]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  640.322585]  ? find_held_lock+0x36/0x1c0
[  640.326669]  ? ____cache_alloc_node+0x1c7/0x1e0
[  640.331339]  ? lock_downgrade+0x900/0x900
[  640.335493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  640.341037]  cache_grow_begin+0xa5/0x8c0
[  640.345099]  ? do_raw_spin_unlock+0xa7/0x330
[  640.349525]  fallback_alloc+0x204/0x2e0
[  640.353507]  ____cache_alloc_node+0x1c7/0x1e0
[  640.358006]  kmem_cache_alloc_node+0xe3/0x730
[  640.362503]  ? ipv6_get_ifaddr+0x42e/0x620
[  640.366758]  __alloc_skb+0x119/0x770
[  640.370469]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  640.375757]  ? netdev_alloc_frag+0x1f0/0x1f0
[  640.380197]  ? lock_downgrade+0x900/0x900
[  640.384352]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  640.389903]  ? refcount_sub_and_test_checked+0x203/0x310
[  640.395357]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  640.400805]  ? addrconf_rs_timer+0x690/0x690
[  640.405224]  ndisc_alloc_skb+0x144/0x340
[  640.409291]  ndisc_send_rs+0x331/0x6e0
[  640.413189]  addrconf_rs_timer+0x314/0x690
[  640.417429]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  640.421671]  call_timer_fn+0x272/0x920
[  640.425554]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  640.429799]  ? process_timeout+0x40/0x40
[  640.433873]  ? mark_held_locks+0xc7/0x130
[  640.438022]  ? _raw_spin_unlock_irq+0x27/0x80
[  640.442517]  ? _raw_spin_unlock_irq+0x27/0x80
[  640.447024]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  640.451265]  ? lockdep_hardirqs_on+0x296/0x5b0
[  640.455848]  ? trace_hardirqs_on+0xbd/0x310
[  640.460168]  ? kasan_check_read+0x11/0x20
[  640.464313]  ? __run_timers+0x7da/0xc70
[  640.468295]  ? trace_hardirqs_off_caller+0x310/0x310
[  640.473416]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  640.477657]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  640.481887]  __run_timers+0x7e5/0xc70
[  640.485711]  ? timer_fixup_init+0x70/0x70
[  640.489885]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  640.494914]  ? zap_class+0x640/0x640
[  640.498636]  ? print_usage_bug+0xc0/0xc0
[  640.502699]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  640.507894]  ? find_held_lock+0x36/0x1c0
[  640.511959]  ? zap_class+0x640/0x640
[  640.515675]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  640.521214]  ? check_preemption_disabled+0x48/0x280
[  640.526240]  ? __lock_is_held+0xb5/0x140
[  640.530304]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  640.535839]  ? check_preemption_disabled+0x48/0x280
[  640.540859]  run_timer_softirq+0x52/0xb0
[  640.544920]  ? rcu_read_lock_sched_held+0x14f/0x180
[  640.549938]  __do_softirq+0x308/0xb7e
[  640.553867]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  640.558358]  ? lock_downgrade+0x900/0x900
[  640.562508]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  640.567617]  ? pvclock_read_flags+0x160/0x160
[  640.572131]  ? lapic_next_event+0x5a/0x90
[  640.576286]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  640.581840]  ? kvm_clock_read+0x18/0x30
[  640.585829]  ? kvm_sched_clock_read+0x9/0x20
[  640.590250]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  640.595812]  ? check_preemption_disabled+0x48/0x280
[  640.600849]  irq_exit+0x17f/0x1c0
[  640.604306]  smp_apic_timer_interrupt+0x1cb/0x760
[  640.609151]  ? smp_reschedule_interrupt+0x109/0x650
[  640.614171]  ? smp_call_function_single_interrupt+0x650/0x650
[  640.620056]  ? interrupt_entry+0xb5/0xc0
[  640.624119]  ? trace_hardirqs_off_caller+0xbb/0x310
[  640.629133]  ? trace_hardirqs_off_caller+0xbb/0x310
[  640.634148]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  640.638992]  ? trace_hardirqs_on_caller+0x310/0x310
[  640.644005]  ? trace_hardirqs_on_caller+0x310/0x310
[  640.649019]  ? task_prio+0x50/0x50
[  640.652559]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  640.658097]  ? check_preemption_disabled+0x48/0x280
[  640.663120]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  640.667971]  apic_timer_interrupt+0xf/0x20
[  640.672200]  </IRQ>
[  640.674441] RIP: 0010:dump_stack+0x358/0x39d
[  640.678853] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  640.698211] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  640.705917] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  640.713184] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  640.720450] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  640.727713] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  640.734984] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  640.742286]  ? dump_stack+0x34f/0x39d
[  640.746102]  ? dump_stack_print_info.cold.1+0x20/0x20
[  640.751299]  ? mark_held_locks+0x130/0x130
[  640.755531]  ? mark_held_locks+0x130/0x130
[  640.759781]  dump_header+0x27b/0xf72
[  640.763512]  ? pagefault_out_of_memory+0x197/0x197
[  640.768447]  ? __lock_acquire+0x62f/0x4c20
[  640.772680]  ? percpu_ref_get_many+0x240/0x240
[  640.777284]  ? print_usage_bug+0xc0/0xc0
[  640.781350]  ? zap_class+0x640/0x640
[  640.785066]  ? print_usage_bug+0xc0/0xc0
[  640.789123]  ? print_usage_bug+0xc0/0xc0
[  640.793194]  ? zap_class+0x640/0x640
[  640.796912]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  640.802464]  ? find_held_lock+0x36/0x1c0
[  640.806549]  ? mark_held_locks+0xc7/0x130
[  640.810697]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  640.815796]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  640.820900]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  640.825498]  ? trace_hardirqs_on+0xbd/0x310
[  640.829860]  ? kasan_check_read+0x11/0x20
[  640.834009]  ? ___ratelimit+0x3b4/0x672
[  640.837982]  ? trace_hardirqs_off_caller+0x310/0x310
[  640.843085]  ? trace_hardirqs_on+0x310/0x310
[  640.847506]  ? lock_downgrade+0x900/0x900
[  640.851691]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  640.856791]  ? ___ratelimit+0x3b9/0x672
[  640.860772]  ? idr_get_free+0xf70/0xf70
[  640.864754]  ? find_held_lock+0x36/0x1c0
[  640.868832]  oom_kill_process.cold.27+0x10/0x903
[  640.873586]  ? zap_class+0x640/0x640
[  640.877296]  ? check_preemption_disabled+0x48/0x280
[  640.882311]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  640.887238]  ? kasan_check_read+0x11/0x20
[  640.891387]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  640.896663]  ? oom_evaluate_task+0x540/0x540
[  640.901087]  ? find_held_lock+0x36/0x1c0
[  640.905164]  ? out_of_memory+0x974/0x1430
[  640.909357]  ? lock_downgrade+0x900/0x900
[  640.913504]  ? check_preemption_disabled+0x48/0x280
[  640.918521]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  640.923460]  ? kasan_check_read+0x11/0x20
[  640.927605]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  640.932882]  ? rcu_softirq_qs+0x20/0x20
[  640.936863]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  640.942397]  ? oom_evaluate_task+0x302/0x540
[  640.946810]  out_of_memory+0xa84/0x1430
[  640.950793]  ? oom_killer_disable+0x3a0/0x3a0
[  640.955303]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  640.960235]  ? __ww_mutex_check_waiters+0x160/0x160
[  640.965271]  __alloc_pages_slowpath+0x232c/0x2de0
[  640.970142]  ? warn_alloc+0x120/0x120
[  640.973945]  ? mark_held_locks+0x130/0x130
[  640.978183]  ? find_get_entry+0xaae/0x1120
[  640.982425]  ? filemap_map_pages+0x1a20/0x1a20
[  640.987012]  ? zap_class+0x640/0x640
[  640.990727]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  640.996312]  ? check_preemption_disabled+0x48/0x280
[  641.001341]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  641.006876]  ? should_fail+0x22d/0xd01
[  641.010785]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  641.015887]  ? zap_class+0x640/0x640
[  641.019621]  ? __lock_is_held+0xb5/0x140
[  641.023708]  ? mark_held_locks+0x130/0x130
[  641.027948]  ? lock_release+0xa00/0xa00
[  641.031922]  ? perf_trace_sched_process_exec+0x860/0x860
[  641.037386]  ? xa_load+0x2ba/0x460
[  641.040959]  ? lock_downgrade+0x900/0x900
[  641.045109]  ? __might_sleep+0x95/0x190
[  641.049105]  __alloc_pages_nodemask+0xad8/0xea0
[  641.053783]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  641.058798]  ? __page_cache_alloc+0x191/0x5c0
[  641.063289]  ? xa_load+0x2e1/0x460
[  641.066825]  ? xa_clear_mark+0x40/0x40
[  641.070716]  ? zap_class+0x640/0x640
[  641.074448]  ? zap_class+0x640/0x640
[  641.078157]  ? zap_class+0x640/0x640
[  641.081872]  ? __do_page_cache_readahead+0x663/0x810
[  641.086984]  ? find_held_lock+0x36/0x1c0
[  641.091051]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  641.096590]  alloc_pages_current+0x173/0x350
[  641.101016]  __page_cache_alloc+0x38c/0x5c0
[  641.105331]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  641.110255]  ? kasan_check_read+0x11/0x20
[  641.114421]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  641.119701]  ? generic_perform_write+0x6a0/0x6a0
[  641.124457]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  641.129992]  ? check_preemption_disabled+0x48/0x280
[  641.135014]  filemap_fault+0x1595/0x25f0
[  641.139102]  ? __lock_page_or_retry+0xa00/0xa00
[  641.143778]  ? mark_held_locks+0x130/0x130
[  641.148025]  ? filemap_map_pages+0xd6b/0x1a20
[  641.152521]  ? lock_downgrade+0x900/0x900
[  641.156668]  ? check_preemption_disabled+0x48/0x280
[  641.161697]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  641.166624]  ? kasan_check_read+0x11/0x20
[  641.170770]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  641.176045]  ? rcu_softirq_qs+0x20/0x20
[  641.180033]  ? filemap_map_pages+0xd92/0x1a20
[  641.184532]  ? print_usage_bug+0xc0/0xc0
[  641.188596]  ? find_get_entries_tag+0x1400/0x1400
[  641.193435]  ? __kasan_slab_free+0x102/0x150
[  641.197844]  ? kasan_slab_free+0xe/0x10
[  641.201818]  ? kmem_cache_free+0x83/0x290
[  641.205983]  ? __sigqueue_free.part.29+0x74/0x90
[  641.210791]  ? lock_acquire+0x1ed/0x520
[  641.214769]  ? ext4_filemap_fault+0x7a/0xad
[  641.219129]  ? lock_release+0xa00/0xa00
[  641.223097]  ? perf_trace_sched_process_exec+0x860/0x860
[  641.228549]  ? print_usage_bug+0xc0/0xc0
[  641.232609]  ? print_usage_bug+0xc0/0xc0
[  641.236674]  ? down_read+0x8d/0x120
[  641.240299]  ? ext4_filemap_fault+0x7a/0xad
[  641.244621]  ? __down_interruptible+0x700/0x700
[  641.249298]  ext4_filemap_fault+0x82/0xad
[  641.253457]  __do_fault+0x100/0x6b0
[  641.257089]  ? pmd_devmap_trans_unstable+0x220/0x220
[  641.262195]  ? mark_held_locks+0x130/0x130
[  641.266432]  ? mark_held_locks+0x130/0x130
[  641.270665]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  641.276200]  ? rcu_pm_notify+0xc0/0xc0
[  641.280130]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  641.285670]  __handle_mm_fault+0x3ea0/0x5be0
[  641.290085]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  641.294921]  ? _raw_spin_unlock_irq+0x27/0x80
[  641.299413]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  641.303995]  ? trace_hardirqs_on+0xbd/0x310
[  641.308333]  ? kasan_check_read+0x11/0x20
[  641.312480]  ? __set_current_blocked+0xdf/0x120
[  641.317151]  ? trace_hardirqs_off_caller+0x310/0x310
[  641.322268]  ? zap_class+0x640/0x640
[  641.325985]  ? zap_class+0x640/0x640
[  641.329705]  ? find_held_lock+0x36/0x1c0
[  641.333785]  ? handle_mm_fault+0x42a/0xc70
[  641.338022]  ? lock_downgrade+0x900/0x900
[  641.342172]  ? check_preemption_disabled+0x48/0x280
[  641.347209]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  641.352133]  ? kasan_check_read+0x11/0x20
[  641.356283]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  641.361561]  ? rcu_softirq_qs+0x20/0x20
[  641.365534]  ? trace_hardirqs_off_caller+0x310/0x310
[  641.370649]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  641.376239]  ? check_preemption_disabled+0x48/0x280
[  641.381281]  handle_mm_fault+0x54f/0xc70
[  641.385347]  ? __handle_mm_fault+0x5be0/0x5be0
[  641.389934]  ? find_vma+0x34/0x190
[  641.393479]  __do_page_fault+0x5e8/0xe60
[  641.397554]  ? exit_to_usermode_loop+0x1f4/0x380
[  641.402318]  do_page_fault+0xf2/0x7e0
[  641.406135]  ? vmalloc_sync_all+0x30/0x30
[  641.410291]  ? error_entry+0x70/0xd0
[  641.414007]  ? trace_hardirqs_off_caller+0xbb/0x310
[  641.419020]  ? trace_hardirqs_on_caller+0xc0/0x310
[  641.423952]  ? syscall_return_slowpath+0x5e0/0x5e0
[  641.428879]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  641.433724]  ? trace_hardirqs_on_caller+0x310/0x310
[  641.438760]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  641.444214]  ? prepare_exit_to_usermode+0x291/0x3b0
[  641.449228]  ? page_fault+0x8/0x30
[  641.452801]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  641.457648]  ? page_fault+0x8/0x30
[  641.461190]  page_fault+0x1e/0x30
[  641.464638] RIP: 0033:0x45db60
[  641.467840] Code: Bad RIP value.
[  641.471214] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  641.476575] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  641.483838] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  641.491106] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  641.498372] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  641.505653] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  641.512946] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  641.512951] warn_alloc_show_mem: 1 callbacks suppressed
[  641.512958] Mem-Info:
[  641.519805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  641.525172] active_anon:42936 inactive_anon:306 isolated_anon:0
[  641.525172]  active_file:13 inactive_file:13 isolated_file:0
[  641.525172]  unevictable:0 dirty:0 writeback:0 unstable:0
[  641.525172]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  641.525172]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  641.525172]  free:13785 free_pcp:492 free_cma:0
[  641.527539] Call Trace:
[  641.536942] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  641.569752]  dump_stack+0x244/0x39d
[  641.572299] 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
[  641.599910]  ? dump_stack_print_info.cold.1+0x20/0x20
[  641.603507] lowmem_reserve[]: 0 2818 6321 6321
[  641.629623]  warn_alloc.cold.116+0xb7/0x1bd
[  641.634775] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  641.639348]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  641.643642] lowmem_reserve[]: 0 0 3503 3503
[  641.670792]  ? lock_downgrade+0x900/0x900
[  641.675628] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  641.679945]  ? trace_hardirqs_off+0xb8/0x310
[  641.684053] lowmem_reserve[]: 0 0 0 0
[  641.713212]  ? trace_hardirqs_off+0xb8/0x310
[  641.717587] 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
[  641.721386]  __alloc_pages_slowpath+0x2651/0x2de0
[  641.725769] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  641.739341]  ? warn_alloc+0x120/0x120
[  641.744117] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  641.759303]  ? print_usage_bug+0xc0/0xc0
[  641.763080] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  641.778238]  ? warn_alloc+0x120/0x120
[  641.782279] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  641.791106]  ? warn_alloc+0x120/0x120
[  641.794884] 380 total pagecache pages
[  641.803454]  ? print_usage_bug+0xc0/0xc0
[  641.807234] 0 pages in swap cache
[  641.811018]  ? print_usage_bug+0xc0/0xc0
[  641.815054] Swap cache stats: add 0, delete 0, find 0/0
[  641.818497]  ? __lock_acquire+0x62f/0x4c20
[  641.822534] Free swap  = 0kB
[  641.827890]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  641.832093] Total swap = 0kB
[  641.835105]  ? should_fail+0x22d/0xd01
[  641.840612] 1965979 pages RAM
[  641.843624]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  641.847482] 0 pages HighMem/MovableOnly
[  641.850583]  ? __lock_acquire+0x62f/0x4c20
[  641.855663] 342854 pages reserved
[  641.859631]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  641.863840] 0 pages cma reserved
[  641.867293]  ? __lock_acquire+0x62f/0x4c20
[  641.867308]  ? should_fail+0x22d/0xd01
[  641.872472] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  641.875772]  ? find_held_lock+0x36/0x1c0
[  641.880235] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  641.883865]  ? mark_held_locks+0x130/0x130
[  641.890326] syz-fuzzer cpuset=/ mems_allowed=0
[  641.894376]  ? mark_held_locks+0x130/0x130
[  641.917578]  ? lock_downgrade+0x900/0x900
[  641.921730]  ? zap_class+0x640/0x640
[  641.925467]  ? print_usage_bug+0xc0/0xc0
[  641.929525]  ? trace_hardirqs_off+0xb8/0x310
[  641.933937]  ? kasan_check_read+0x11/0x20
[  641.938086]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  641.943627]  ? check_preemption_disabled+0x48/0x280
[  641.948651]  ? __lock_is_held+0xb5/0x140
[  641.952716]  __alloc_pages_nodemask+0xad8/0xea0
[  641.957390]  ? zap_class+0x640/0x640
[  641.961111]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  641.966139]  ? find_held_lock+0x36/0x1c0
[  641.970235]  ? ____cache_alloc_node+0x1c7/0x1e0
[  641.974920]  ? lock_downgrade+0x900/0x900
[  641.979082]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  641.984627]  cache_grow_begin+0xa5/0x8c0
[  641.988691]  ? do_raw_spin_unlock+0xa7/0x330
[  641.993106]  fallback_alloc+0x204/0x2e0
[  641.997089]  ____cache_alloc_node+0x1c7/0x1e0
[  642.001590]  kmem_cache_alloc_node+0xe3/0x730
[  642.006084]  ? ipv6_get_ifaddr+0x42e/0x620
[  642.010327]  __alloc_skb+0x119/0x770
[  642.014040]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  642.019325]  ? netdev_alloc_frag+0x1f0/0x1f0
[  642.023735]  ? lock_downgrade+0x900/0x900
[  642.027913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.033467]  ? refcount_sub_and_test_checked+0x203/0x310
[  642.038917]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  642.044366]  ? addrconf_rs_timer+0x690/0x690
[  642.048793]  ndisc_alloc_skb+0x144/0x340
[  642.052860]  ndisc_send_rs+0x331/0x6e0
[  642.056796]  addrconf_rs_timer+0x314/0x690
[  642.061037]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  642.065285]  call_timer_fn+0x272/0x920
[  642.069170]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  642.073407]  ? process_timeout+0x40/0x40
[  642.077494]  ? __run_timers+0x7da/0xc70
[  642.081492]  ? _raw_spin_unlock_irq+0x27/0x80
[  642.085980]  ? _raw_spin_unlock_irq+0x27/0x80
[  642.090475]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  642.094725]  ? lockdep_hardirqs_on+0x296/0x5b0
[  642.099347]  ? trace_hardirqs_on+0xbd/0x310
[  642.103691]  ? kasan_check_read+0x11/0x20
[  642.107838]  ? __run_timers+0x7da/0xc70
[  642.111818]  ? trace_hardirqs_off_caller+0x310/0x310
[  642.116957]  ? __queue_work+0x1440/0x1440
[  642.121109]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  642.125343]  __run_timers+0x7e5/0xc70
[  642.129165]  ? timer_fixup_init+0x70/0x70
[  642.133312]  ? _raw_spin_unlock_irq+0x27/0x80
[  642.137809]  ? _raw_spin_unlock_irq+0x27/0x80
[  642.142306]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  642.146889]  ? trace_hardirqs_on+0xbd/0x310
[  642.151209]  ? kasan_check_read+0x11/0x20
[  642.155370]  ? finish_task_switch+0x1f4/0x910
[  642.159868]  ? trace_hardirqs_off_caller+0x310/0x310
[  642.164969]  ? compat_start_thread+0x80/0x80
[  642.169411]  ? pvclock_read_flags+0x160/0x160
[  642.173934]  ? __switch_to_asm+0x34/0x70
[  642.178000]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.183556]  ? check_preemption_disabled+0x48/0x280
[  642.188584]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  642.194126]  ? rcu_pm_notify+0xc0/0xc0
[  642.198019]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.203561]  ? check_preemption_disabled+0x48/0x280
[  642.208584]  run_timer_softirq+0x52/0xb0
[  642.212641]  ? rcu_read_lock_sched_held+0x14f/0x180
[  642.217661]  __do_softirq+0x308/0xb7e
[  642.221484]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  642.226244]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  642.231349]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  642.236800]  ? trace_hardirqs_on+0x310/0x310
[  642.241212]  ? schedule+0x108/0x460
[  642.244852]  ? trace_hardirqs_off+0xb8/0x310
[  642.249264]  ? smpboot_thread_fn+0x68b/0xa00
[  642.253689]  ? trace_hardirqs_on+0x310/0x310
[  642.258097]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  642.263653]  ? check_preemption_disabled+0x48/0x280
[  642.268670]  ? takeover_tasklets+0xa90/0xa90
[  642.273077]  run_ksoftirqd+0x5e/0x100
[  642.276880]  smpboot_thread_fn+0x68b/0xa00
[  642.281117]  ? sort_range+0x30/0x30
[  642.284753]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  642.289860]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  642.295394]  ? __kthread_parkme+0xfb/0x1a0
[  642.299635]  ? sort_range+0x30/0x30
[  642.303259]  kthread+0x35a/0x440
[  642.306640]  ? kthread_stop+0x900/0x900
[  642.310614]  ret_from_fork+0x3a/0x50
[  642.314347] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  642.314428] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  642.321353] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  642.321359] Call Trace:
[  642.321365]  <IRQ>
[  642.321384]  dump_stack+0x244/0x39d
[  642.321403]  ? dump_stack_print_info.cold.1+0x20/0x20
[  642.327929] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  642.337243]  warn_alloc.cold.116+0xb7/0x1bd
[  642.339791] ksoftirqd/0 cpuset=/ mems_allowed=0
[  642.341938]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  642.374808]  ? lock_downgrade+0x900/0x900
[  642.378969]  ? trace_hardirqs_off+0xb8/0x310
[  642.383417]  ? trace_hardirqs_off+0xb8/0x310
[  642.387838]  __alloc_pages_slowpath+0x2651/0x2de0
[  642.392714]  ? warn_alloc+0x120/0x120
[  642.396536]  ? print_usage_bug+0xc0/0xc0
[  642.400614]  ? warn_alloc+0x120/0x120
[  642.404421]  ? warn_alloc+0x120/0x120
[  642.408225]  ? print_usage_bug+0xc0/0xc0
[  642.412307]  ? kvm_clock_read+0x18/0x30
[  642.416316]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  642.421332]  ? print_usage_bug+0xc0/0xc0
[  642.425398]  ? __lock_acquire+0x62f/0x4c20
[  642.429637]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  642.435174]  ? should_fail+0x22d/0xd01
[  642.439065]  ? __lock_acquire+0x62f/0x4c20
[  642.443303]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  642.448405]  ? __lock_acquire+0x62f/0x4c20
[  642.452642]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  642.457750]  ? __lock_acquire+0x62f/0x4c20
[  642.461986]  ? should_fail+0x22d/0xd01
[  642.465900]  ? mark_held_locks+0x130/0x130
[  642.470196]  ? mark_held_locks+0x130/0x130
[  642.474428]  ? try_to_wake_up+0x11c/0x1490
[  642.478662]  ? lock_downgrade+0x900/0x900
[  642.482812]  ? zap_class+0x640/0x640
[  642.486528]  ? print_usage_bug+0xc0/0xc0
[  642.490588]  ? trace_hardirqs_off+0xb8/0x310
[  642.495006]  ? kasan_check_read+0x11/0x20
[  642.499154]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.504690]  ? check_preemption_disabled+0x48/0x280
[  642.509732]  ? __lock_is_held+0xb5/0x140
[  642.513812]  __alloc_pages_nodemask+0xad8/0xea0
[  642.518477]  ? zap_class+0x640/0x640
[  642.522196]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  642.527220]  ? find_held_lock+0x36/0x1c0
[  642.531307]  ? ____cache_alloc_node+0x1c7/0x1e0
[  642.535974]  ? lock_downgrade+0x900/0x900
[  642.540132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.545675]  cache_grow_begin+0xa5/0x8c0
[  642.549734]  ? do_raw_spin_unlock+0xa7/0x330
[  642.554348]  fallback_alloc+0x204/0x2e0
[  642.558328]  ____cache_alloc_node+0x1c7/0x1e0
[  642.562828]  kmem_cache_alloc_node+0xe3/0x730
[  642.567341]  ? ipv6_get_ifaddr+0x42e/0x620
[  642.571584]  __alloc_skb+0x119/0x770
[  642.575296]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  642.580603]  ? netdev_alloc_frag+0x1f0/0x1f0
[  642.585011]  ? lock_downgrade+0x900/0x900
[  642.589167]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.594720]  ? refcount_sub_and_test_checked+0x203/0x310
[  642.600186]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  642.605639]  ? addrconf_rs_timer+0x690/0x690
[  642.610091]  ndisc_alloc_skb+0x144/0x340
[  642.614158]  ndisc_send_rs+0x331/0x6e0
[  642.618068]  addrconf_rs_timer+0x314/0x690
[  642.622313]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  642.626559]  call_timer_fn+0x272/0x920
[  642.630446]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  642.634682]  ? process_timeout+0x40/0x40
[  642.638756]  ? mark_held_locks+0xc7/0x130
[  642.642906]  ? _raw_spin_unlock_irq+0x27/0x80
[  642.647397]  ? _raw_spin_unlock_irq+0x27/0x80
[  642.651893]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  642.656143]  ? lockdep_hardirqs_on+0x296/0x5b0
[  642.660723]  ? trace_hardirqs_on+0xbd/0x310
[  642.665050]  ? kasan_check_read+0x11/0x20
[  642.669201]  ? __run_timers+0x7da/0xc70
[  642.673179]  ? trace_hardirqs_off_caller+0x310/0x310
[  642.678301]  ? __queue_work+0x1440/0x1440
[  642.682453]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  642.687164]  __run_timers+0x7e5/0xc70
[  642.690990]  ? timer_fixup_init+0x70/0x70
[  642.695140]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  642.700156]  ? zap_class+0x640/0x640
[  642.703875]  ? print_usage_bug+0xc0/0xc0
[  642.707939]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  642.713138]  ? find_held_lock+0x36/0x1c0
[  642.717203]  ? zap_class+0x640/0x640
[  642.720923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.726461]  ? check_preemption_disabled+0x48/0x280
[  642.731487]  ? __lock_is_held+0xb5/0x140
[  642.735547]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.741084]  ? check_preemption_disabled+0x48/0x280
[  642.746107]  run_timer_softirq+0x52/0xb0
[  642.750166]  ? rcu_read_lock_sched_held+0x14f/0x180
[  642.755183]  __do_softirq+0x308/0xb7e
[  642.758990]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  642.763482]  ? lock_downgrade+0x900/0x900
[  642.767639]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  642.772758]  ? pvclock_read_flags+0x160/0x160
[  642.777257]  ? lapic_next_event+0x5a/0x90
[  642.781416]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  642.786957]  ? kvm_clock_read+0x18/0x30
[  642.790934]  ? kvm_sched_clock_read+0x9/0x20
[  642.795348]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  642.800889]  ? check_preemption_disabled+0x48/0x280
[  642.805912]  irq_exit+0x17f/0x1c0
[  642.809398]  smp_apic_timer_interrupt+0x1cb/0x760
[  642.814238]  ? smp_reschedule_interrupt+0x109/0x650
[  642.819277]  ? smp_call_function_single_interrupt+0x650/0x650
[  642.825174]  ? interrupt_entry+0xb5/0xc0
[  642.829283]  ? trace_hardirqs_off_caller+0xbb/0x310
[  642.834311]  ? trace_hardirqs_off_caller+0xbb/0x310
[  642.839334]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  642.844176]  ? trace_hardirqs_on_caller+0x310/0x310
[  642.849188]  ? trace_hardirqs_on_caller+0x310/0x310
[  642.854203]  ? task_prio+0x50/0x50
[  642.857776]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  642.863313]  ? check_preemption_disabled+0x48/0x280
[  642.868333]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  642.873183]  apic_timer_interrupt+0xf/0x20
[  642.877424]  </IRQ>
[  642.879661] RIP: 0010:dump_stack+0x358/0x39d
[  642.884073] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  642.902975] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  642.910683] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  642.917953] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  642.925218] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  642.932496] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  642.939763] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  642.947050]  ? dump_stack+0x34f/0x39d
[  642.950864]  ? dump_stack_print_info.cold.1+0x20/0x20
[  642.956063]  ? mark_held_locks+0x130/0x130
[  642.960296]  ? mark_held_locks+0x130/0x130
[  642.964536]  dump_header+0x27b/0xf72
[  642.968269]  ? pagefault_out_of_memory+0x197/0x197
[  642.973207]  ? __lock_acquire+0x62f/0x4c20
[  642.977469]  ? percpu_ref_get_many+0x240/0x240
[  642.982069]  ? print_usage_bug+0xc0/0xc0
[  642.986165]  ? zap_class+0x640/0x640
[  642.989881]  ? print_usage_bug+0xc0/0xc0
[  642.993971]  ? print_usage_bug+0xc0/0xc0
[  642.998031]  ? zap_class+0x640/0x640
[  643.001755]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  643.007297]  ? find_held_lock+0x36/0x1c0
[  643.011368]  ? mark_held_locks+0xc7/0x130
[  643.015514]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  643.020618]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  643.025731]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  643.030337]  ? trace_hardirqs_on+0xbd/0x310
[  643.034659]  ? kasan_check_read+0x11/0x20
[  643.038808]  ? ___ratelimit+0x3b4/0x672
[  643.042796]  ? trace_hardirqs_off_caller+0x310/0x310
[  643.047903]  ? trace_hardirqs_on+0x310/0x310
[  643.052325]  ? lock_downgrade+0x900/0x900
[  643.056477]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  643.061584]  ? ___ratelimit+0x3b9/0x672
[  643.065621]  ? idr_get_free+0xf70/0xf70
[  643.069597]  ? find_held_lock+0x36/0x1c0
[  643.073665]  oom_kill_process.cold.27+0x10/0x903
[  643.078426]  ? zap_class+0x640/0x640
[  643.082147]  ? check_preemption_disabled+0x48/0x280
[  643.087170]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  643.092096]  ? kasan_check_read+0x11/0x20
[  643.096265]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  643.101539]  ? oom_evaluate_task+0x540/0x540
[  643.105964]  ? find_held_lock+0x36/0x1c0
[  643.110033]  ? out_of_memory+0x974/0x1430
[  643.114186]  ? lock_downgrade+0x900/0x900
[  643.118336]  ? check_preemption_disabled+0x48/0x280
[  643.123352]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  643.128288]  ? kasan_check_read+0x11/0x20
[  643.132431]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  643.137706]  ? rcu_softirq_qs+0x20/0x20
[  643.141690]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  643.147231]  ? oom_evaluate_task+0x302/0x540
[  643.151677]  out_of_memory+0xa84/0x1430
[  643.155713]  ? oom_killer_disable+0x3a0/0x3a0
[  643.160224]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  643.165178]  ? __ww_mutex_check_waiters+0x160/0x160
[  643.170222]  __alloc_pages_slowpath+0x232c/0x2de0
[  643.175094]  ? warn_alloc+0x120/0x120
[  643.178895]  ? mark_held_locks+0x130/0x130
[  643.183134]  ? find_get_entry+0xaae/0x1120
[  643.187376]  ? filemap_map_pages+0x1a20/0x1a20
[  643.191997]  ? zap_class+0x640/0x640
[  643.195730]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  643.201279]  ? check_preemption_disabled+0x48/0x280
[  643.206295]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  643.211835]  ? should_fail+0x22d/0xd01
[  643.215724]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  643.220871]  ? zap_class+0x640/0x640
[  643.224613]  ? __lock_is_held+0xb5/0x140
[  643.228684]  ? mark_held_locks+0x130/0x130
[  643.232918]  ? lock_release+0xa00/0xa00
[  643.236891]  ? perf_trace_sched_process_exec+0x860/0x860
[  643.242338]  ? xa_load+0x2ba/0x460
[  643.245881]  ? lock_downgrade+0x900/0x900
[  643.250047]  ? __might_sleep+0x95/0x190
[  643.254038]  __alloc_pages_nodemask+0xad8/0xea0
[  643.258716]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  643.263777]  ? __page_cache_alloc+0x191/0x5c0
[  643.268276]  ? xa_load+0x2e1/0x460
[  643.271819]  ? xa_clear_mark+0x40/0x40
[  643.275711]  ? zap_class+0x640/0x640
[  643.279439]  ? zap_class+0x640/0x640
[  643.283170]  ? zap_class+0x640/0x640
[  643.286915]  ? __do_page_cache_readahead+0x663/0x810
[  643.292022]  ? find_held_lock+0x36/0x1c0
[  643.296093]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  643.301639]  alloc_pages_current+0x173/0x350
[  643.306052]  __page_cache_alloc+0x38c/0x5c0
[  643.310391]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  643.315315]  ? kasan_check_read+0x11/0x20
[  643.319506]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  643.324800]  ? generic_perform_write+0x6a0/0x6a0
[  643.329558]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  643.335098]  ? check_preemption_disabled+0x48/0x280
[  643.340140]  filemap_fault+0x1595/0x25f0
[  643.344211]  ? __lock_page_or_retry+0xa00/0xa00
[  643.348914]  ? mark_held_locks+0x130/0x130
[  643.353174]  ? filemap_map_pages+0xd6b/0x1a20
[  643.357670]  ? lock_downgrade+0x900/0x900
[  643.361816]  ? check_preemption_disabled+0x48/0x280
[  643.366838]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  643.371774]  ? kasan_check_read+0x11/0x20
[  643.375921]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  643.381203]  ? rcu_softirq_qs+0x20/0x20
[  643.385223]  ? filemap_map_pages+0xd92/0x1a20
[  643.389764]  ? print_usage_bug+0xc0/0xc0
[  643.393836]  ? find_get_entries_tag+0x1400/0x1400
[  643.398679]  ? __kasan_slab_free+0x102/0x150
[  643.403088]  ? kasan_slab_free+0xe/0x10
[  643.407059]  ? kmem_cache_free+0x83/0x290
[  643.411222]  ? __sigqueue_free.part.29+0x74/0x90
[  643.415997]  ? lock_acquire+0x1ed/0x520
[  643.419969]  ? ext4_filemap_fault+0x7a/0xad
[  643.424304]  ? lock_release+0xa00/0xa00
[  643.428284]  ? perf_trace_sched_process_exec+0x860/0x860
[  643.433769]  ? print_usage_bug+0xc0/0xc0
[  643.437833]  ? print_usage_bug+0xc0/0xc0
[  643.441906]  ? down_read+0x8d/0x120
[  643.445530]  ? ext4_filemap_fault+0x7a/0xad
[  643.449867]  ? __down_interruptible+0x700/0x700
[  643.454557]  ext4_filemap_fault+0x82/0xad
[  643.458710]  __do_fault+0x100/0x6b0
[  643.462363]  ? pmd_devmap_trans_unstable+0x220/0x220
[  643.467484]  ? mark_held_locks+0x130/0x130
[  643.471743]  ? mark_held_locks+0x130/0x130
[  643.476054]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  643.481592]  ? rcu_pm_notify+0xc0/0xc0
[  643.485484]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  643.491028]  __handle_mm_fault+0x3ea0/0x5be0
[  643.495472]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  643.500315]  ? _raw_spin_unlock_irq+0x27/0x80
[  643.504812]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  643.509394]  ? trace_hardirqs_on+0xbd/0x310
[  643.513713]  ? kasan_check_read+0x11/0x20
[  643.517862]  ? __set_current_blocked+0xdf/0x120
[  643.522530]  ? trace_hardirqs_off_caller+0x310/0x310
[  643.527644]  ? zap_class+0x640/0x640
[  643.531354]  ? zap_class+0x640/0x640
[  643.535078]  ? find_held_lock+0x36/0x1c0
[  643.539146]  ? handle_mm_fault+0x42a/0xc70
[  643.543409]  ? lock_downgrade+0x900/0x900
[  643.547556]  ? check_preemption_disabled+0x48/0x280
[  643.552578]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  643.557507]  ? kasan_check_read+0x11/0x20
[  643.561651]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  643.566945]  ? rcu_softirq_qs+0x20/0x20
[  643.570925]  ? trace_hardirqs_off_caller+0x310/0x310
[  643.576029]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  643.581598]  ? check_preemption_disabled+0x48/0x280
[  643.586633]  handle_mm_fault+0x54f/0xc70
[  643.590696]  ? __handle_mm_fault+0x5be0/0x5be0
[  643.595288]  ? find_vma+0x34/0x190
[  643.598861]  __do_page_fault+0x5e8/0xe60
[  643.602925]  ? exit_to_usermode_loop+0x1f4/0x380
[  643.607690]  do_page_fault+0xf2/0x7e0
[  643.611492]  ? vmalloc_sync_all+0x30/0x30
[  643.615638]  ? error_entry+0x70/0xd0
[  643.619355]  ? trace_hardirqs_off_caller+0xbb/0x310
[  643.624381]  ? trace_hardirqs_on_caller+0xc0/0x310
[  643.629355]  ? syscall_return_slowpath+0x5e0/0x5e0
[  643.634286]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  643.639127]  ? trace_hardirqs_on_caller+0x310/0x310
[  643.644145]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  643.649596]  ? prepare_exit_to_usermode+0x291/0x3b0
[  643.654610]  ? page_fault+0x8/0x30
[  643.658153]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  643.662999]  ? page_fault+0x8/0x30
[  643.666538]  page_fault+0x1e/0x30
[  643.669988] RIP: 0033:0x45db60
[  643.673213] Code: Bad RIP value.
[  643.676573] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  643.681933] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  643.689980] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  643.697247] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  643.704518] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  643.711780] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  643.719071] warn_alloc_show_mem: 1 callbacks suppressed
[  643.719083] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  643.719084] Mem-Info:
[  643.719158] active_anon:42936 inactive_anon:306 isolated_anon:0
[  643.719158]  active_file:13 inactive_file:13 isolated_file:0
[  643.719158]  unevictable:0 dirty:0 writeback:0 unstable:0
[  643.719158]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  643.719158]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  643.719158]  free:13785 free_pcp:492 free_cma:0
[  643.724497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  643.731335] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  643.733734] Call Trace:
[  643.766543] 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
[  643.775908]  dump_stack+0x244/0x39d
[  643.803465] lowmem_reserve[]: 0 2818 6321 6321
[  643.806047]  ? dump_stack_print_info.cold.1+0x20/0x20
[  643.832128] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  643.835769]  warn_alloc.cold.116+0xb7/0x1bd
[  643.840309] lowmem_reserve[]: 0 0 3503 3503
[  643.845494]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  643.872619] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  643.876934]  ? lock_downgrade+0x900/0x900
[  643.881225] lowmem_reserve[]: 0 0 0 0
[  643.886067]  ? trace_hardirqs_off+0xb8/0x310
[  643.915184] 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
[  643.919331]  ? trace_hardirqs_off+0xb8/0x310
[  643.923103] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  643.927510]  __alloc_pages_slowpath+0x2651/0x2de0
[  643.941002] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  643.945430]  ? warn_alloc+0x120/0x120
[  643.960560] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  643.965386]  ? print_usage_bug+0xc0/0xc0
[  643.980536] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  643.984323]  ? warn_alloc+0x120/0x120
[  643.993137] 380 total pagecache pages
[  643.997191]  ? warn_alloc+0x120/0x120
[  644.005758] 0 pages in swap cache
[  644.009545]  ? print_usage_bug+0xc0/0xc0
[  644.013339] Swap cache stats: add 0, delete 0, find 0/0
[  644.017141]  ? print_usage_bug+0xc0/0xc0
[  644.020588] Free swap  = 0kB
[  644.024642]  ? __lock_acquire+0x62f/0x4c20
[  644.029981] Total swap = 0kB
[  644.034034]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  644.037021] 1965979 pages RAM
[  644.041251]  ? should_fail+0x22d/0xd01
[  644.044247] 0 pages HighMem/MovableOnly
[  644.049783]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  644.052861] 342854 pages reserved
[  644.056749]  ? __lock_acquire+0x62f/0x4c20
[  644.060706] 0 pages cma reserved
[  644.065800]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  644.069296] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  644.073449]  ? __lock_acquire+0x62f/0x4c20
[  644.073465]  ? should_fail+0x22d/0xd01
[  644.076864] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  644.081902]  ? find_held_lock+0x36/0x1c0
[  644.088381] syz-fuzzer cpuset=/ mems_allowed=0
[  644.092643]  ? mark_held_locks+0x130/0x130
[  644.119602]  ? mark_held_locks+0x130/0x130
[  644.123851]  ? zap_class+0x640/0x640
[  644.127565]  ? zap_class+0x640/0x640
[  644.131277]  ? print_usage_bug+0xc0/0xc0
[  644.135336]  ? do_raw_spin_unlock+0xa7/0x330
[  644.139771]  ? zap_class+0x640/0x640
[  644.143484]  ? print_usage_bug+0xc0/0xc0
[  644.147543]  ? wq_watchdog_touch+0x9c/0xfe
[  644.151788]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.157328]  ? check_preemption_disabled+0x48/0x280
[  644.162357]  ? __lock_is_held+0xb5/0x140
[  644.166425]  __alloc_pages_nodemask+0xad8/0xea0
[  644.171089]  ? zap_class+0x640/0x640
[  644.174809]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  644.179839]  ? find_held_lock+0x36/0x1c0
[  644.183932]  ? ____cache_alloc_node+0x1c7/0x1e0
[  644.188598]  ? lock_downgrade+0x900/0x900
[  644.192768]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.198312]  cache_grow_begin+0xa5/0x8c0
[  644.202368]  ? do_raw_spin_unlock+0xa7/0x330
[  644.206794]  fallback_alloc+0x204/0x2e0
[  644.210786]  ____cache_alloc_node+0x1c7/0x1e0
[  644.215289]  kmem_cache_alloc_node+0xe3/0x730
[  644.219819]  ? ipv6_get_ifaddr+0x42e/0x620
[  644.224085]  __alloc_skb+0x119/0x770
[  644.227811]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  644.233093]  ? netdev_alloc_frag+0x1f0/0x1f0
[  644.237502]  ? lock_downgrade+0x900/0x900
[  644.241655]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.247198]  ? refcount_sub_and_test_checked+0x203/0x310
[  644.252652]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  644.258104]  ? addrconf_rs_timer+0x690/0x690
[  644.262523]  ndisc_alloc_skb+0x144/0x340
[  644.266591]  ndisc_send_rs+0x331/0x6e0
[  644.270488]  addrconf_rs_timer+0x314/0x690
[  644.274728]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  644.278988]  call_timer_fn+0x272/0x920
[  644.282890]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  644.287125]  ? process_timeout+0x40/0x40
[  644.291193]  ? __run_timers+0x7da/0xc70
[  644.295171]  ? _raw_spin_unlock_irq+0x27/0x80
[  644.299665]  ? _raw_spin_unlock_irq+0x27/0x80
[  644.304172]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  644.308423]  ? lockdep_hardirqs_on+0x296/0x5b0
[  644.313007]  ? trace_hardirqs_on+0xbd/0x310
[  644.317329]  ? kasan_check_read+0x11/0x20
[  644.321488]  ? __run_timers+0x7da/0xc70
[  644.325463]  ? trace_hardirqs_off_caller+0x310/0x310
[  644.330584]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  644.334840]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  644.339069]  __run_timers+0x7e5/0xc70
[  644.342897]  ? timer_fixup_init+0x70/0x70
[  644.347078]  ? _raw_spin_unlock_irq+0x27/0x80
[  644.351570]  ? _raw_spin_unlock_irq+0x27/0x80
[  644.356063]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  644.360659]  ? trace_hardirqs_on+0xbd/0x310
[  644.364998]  ? kasan_check_read+0x11/0x20
[  644.369149]  ? finish_task_switch+0x1f4/0x910
[  644.373644]  ? trace_hardirqs_off_caller+0x310/0x310
[  644.378756]  ? compat_start_thread+0x80/0x80
[  644.383197]  ? pvclock_read_flags+0x160/0x160
[  644.387687]  ? __switch_to_asm+0x34/0x70
[  644.391821]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.397357]  ? check_preemption_disabled+0x48/0x280
[  644.402387]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  644.407923]  ? rcu_pm_notify+0xc0/0xc0
[  644.411815]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.417347]  ? check_preemption_disabled+0x48/0x280
[  644.422382]  run_timer_softirq+0x52/0xb0
[  644.426442]  ? rcu_read_lock_sched_held+0x14f/0x180
[  644.431458]  __do_softirq+0x308/0xb7e
[  644.435261]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  644.440023]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  644.445122]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  644.450576]  ? trace_hardirqs_on+0x310/0x310
[  644.455005]  ? schedule+0x108/0x460
[  644.458651]  ? trace_hardirqs_off+0xb8/0x310
[  644.463059]  ? smpboot_thread_fn+0x68b/0xa00
[  644.467468]  ? trace_hardirqs_on+0x310/0x310
[  644.471873]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  644.477409]  ? check_preemption_disabled+0x48/0x280
[  644.482427]  ? takeover_tasklets+0xa90/0xa90
[  644.486835]  run_ksoftirqd+0x5e/0x100
[  644.490636]  smpboot_thread_fn+0x68b/0xa00
[  644.494878]  ? sort_range+0x30/0x30
[  644.498509]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  644.503608]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  644.509160]  ? __kthread_parkme+0xfb/0x1a0
[  644.513425]  ? sort_range+0x30/0x30
[  644.517066]  kthread+0x35a/0x440
[  644.520460]  ? kthread_stop+0x900/0x900
[  644.524456]  ret_from_fork+0x3a/0x50
[  644.528215] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  644.528291] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  644.535223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  644.535229] Call Trace:
[  644.535235]  <IRQ>
[  644.535254]  dump_stack+0x244/0x39d
[  644.535279]  ? dump_stack_print_info.cold.1+0x20/0x20
[  644.541850] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  644.551117]  warn_alloc.cold.116+0xb7/0x1bd
[  644.554174] ksoftirqd/0 cpuset=/ mems_allowed=0
[  644.556334]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  644.589194]  ? lock_downgrade+0x900/0x900
[  644.593351]  ? trace_hardirqs_off+0xb8/0x310
[  644.597784]  ? trace_hardirqs_off+0xb8/0x310
[  644.602198]  __alloc_pages_slowpath+0x2651/0x2de0
[  644.607067]  ? warn_alloc+0x120/0x120
[  644.610869]  ? print_usage_bug+0xc0/0xc0
[  644.614947]  ? warn_alloc+0x120/0x120
[  644.618759]  ? warn_alloc+0x120/0x120
[  644.622562]  ? print_usage_bug+0xc0/0xc0
[  644.626623]  ? print_usage_bug+0xc0/0xc0
[  644.630685]  ? __lock_acquire+0x62f/0x4c20
[  644.634931]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  644.640468]  ? should_fail+0x22d/0xd01
[  644.644357]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  644.649459]  ? __lock_acquire+0x62f/0x4c20
[  644.653695]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  644.658802]  ? __lock_acquire+0x62f/0x4c20
[  644.663033]  ? should_fail+0x22d/0xd01
[  644.666920]  ? find_held_lock+0x36/0x1c0
[  644.670987]  ? mark_held_locks+0x130/0x130
[  644.675225]  ? mark_held_locks+0x130/0x130
[  644.679461]  ? zap_class+0x640/0x640
[  644.683177]  ? zap_class+0x640/0x640
[  644.687413]  ? print_usage_bug+0xc0/0xc0
[  644.691473]  ? do_raw_spin_unlock+0xa7/0x330
[  644.695882]  ? zap_class+0x640/0x640
[  644.699596]  ? print_usage_bug+0xc0/0xc0
[  644.703654]  ? wq_watchdog_touch+0x9c/0xfe
[  644.707905]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.713458]  ? check_preemption_disabled+0x48/0x280
[  644.718482]  ? __lock_is_held+0xb5/0x140
[  644.722551]  __alloc_pages_nodemask+0xad8/0xea0
[  644.727230]  ? zap_class+0x640/0x640
[  644.730950]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  644.735977]  ? find_held_lock+0x36/0x1c0
[  644.740048]  ? ____cache_alloc_node+0x1c7/0x1e0
[  644.744719]  ? lock_downgrade+0x900/0x900
[  644.748885]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.754441]  cache_grow_begin+0xa5/0x8c0
[  644.758517]  ? do_raw_spin_unlock+0xa7/0x330
[  644.762936]  fallback_alloc+0x204/0x2e0
[  644.766930]  ____cache_alloc_node+0x1c7/0x1e0
[  644.771430]  kmem_cache_alloc_node+0xe3/0x730
[  644.775942]  ? ipv6_get_ifaddr+0x42e/0x620
[  644.780191]  __alloc_skb+0x119/0x770
[  644.783901]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  644.789181]  ? netdev_alloc_frag+0x1f0/0x1f0
[  644.793591]  ? lock_downgrade+0x900/0x900
[  644.797770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.803306]  ? refcount_sub_and_test_checked+0x203/0x310
[  644.808779]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  644.814230]  ? addrconf_rs_timer+0x690/0x690
[  644.818650]  ndisc_alloc_skb+0x144/0x340
[  644.822716]  ndisc_send_rs+0x331/0x6e0
[  644.826624]  addrconf_rs_timer+0x314/0x690
[  644.830886]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  644.835130]  call_timer_fn+0x272/0x920
[  644.839016]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  644.843248]  ? process_timeout+0x40/0x40
[  644.847336]  ? mark_held_locks+0xc7/0x130
[  644.851487]  ? _raw_spin_unlock_irq+0x27/0x80
[  644.855983]  ? _raw_spin_unlock_irq+0x27/0x80
[  644.860474]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  644.864706]  ? lockdep_hardirqs_on+0x296/0x5b0
[  644.869301]  ? trace_hardirqs_on+0xbd/0x310
[  644.873622]  ? kasan_check_read+0x11/0x20
[  644.877775]  ? __run_timers+0x7da/0xc70
[  644.881786]  ? trace_hardirqs_off_caller+0x310/0x310
[  644.886898]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  644.891142]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  644.895387]  __run_timers+0x7e5/0xc70
[  644.899198]  ? timer_fixup_init+0x70/0x70
[  644.903347]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  644.908366]  ? zap_class+0x640/0x640
[  644.912088]  ? print_usage_bug+0xc0/0xc0
[  644.916154]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  644.921352]  ? find_held_lock+0x36/0x1c0
[  644.925438]  ? zap_class+0x640/0x640
[  644.929154]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.934708]  ? check_preemption_disabled+0x48/0x280
[  644.939760]  ? __lock_is_held+0xb5/0x140
[  644.943883]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.949418]  ? check_preemption_disabled+0x48/0x280
[  644.954466]  run_timer_softirq+0x52/0xb0
[  644.958527]  ? rcu_read_lock_sched_held+0x14f/0x180
[  644.963545]  __do_softirq+0x308/0xb7e
[  644.967348]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  644.971847]  ? lock_downgrade+0x900/0x900
[  644.976026]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  644.981137]  ? pvclock_read_flags+0x160/0x160
[  644.985637]  ? lapic_next_event+0x5a/0x90
[  644.989784]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  644.995327]  ? kvm_clock_read+0x18/0x30
[  644.999317]  ? kvm_sched_clock_read+0x9/0x20
[  645.003745]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  645.009285]  ? check_preemption_disabled+0x48/0x280
[  645.014313]  irq_exit+0x17f/0x1c0
[  645.017773]  smp_apic_timer_interrupt+0x1cb/0x760
[  645.022648]  ? smp_reschedule_interrupt+0x109/0x650
[  645.027661]  ? smp_call_function_single_interrupt+0x650/0x650
[  645.033540]  ? interrupt_entry+0xb5/0xc0
[  645.037618]  ? trace_hardirqs_off_caller+0xbb/0x310
[  645.042643]  ? trace_hardirqs_off_caller+0xbb/0x310
[  645.047657]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  645.052499]  ? trace_hardirqs_on_caller+0x310/0x310
[  645.057515]  ? trace_hardirqs_on_caller+0x310/0x310
[  645.062551]  ? task_prio+0x50/0x50
[  645.066096]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  645.071635]  ? check_preemption_disabled+0x48/0x280
[  645.076663]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  645.081513]  apic_timer_interrupt+0xf/0x20
[  645.085755]  </IRQ>
[  645.087996] RIP: 0010:dump_stack+0x358/0x39d
[  645.092402] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  645.111298] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  645.119000] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  645.126272] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  645.133538] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  645.140800] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  645.148079] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  645.155365]  ? dump_stack+0x34f/0x39d
[  645.159177]  ? dump_stack_print_info.cold.1+0x20/0x20
[  645.164369]  ? mark_held_locks+0x130/0x130
[  645.168606]  ? mark_held_locks+0x130/0x130
[  645.172848]  dump_header+0x27b/0xf72
[  645.176576]  ? pagefault_out_of_memory+0x197/0x197
[  645.181513]  ? __lock_acquire+0x62f/0x4c20
[  645.185755]  ? percpu_ref_get_many+0x240/0x240
[  645.190348]  ? print_usage_bug+0xc0/0xc0
[  645.194412]  ? zap_class+0x640/0x640
[  645.198132]  ? print_usage_bug+0xc0/0xc0
[  645.202190]  ? print_usage_bug+0xc0/0xc0
[  645.206251]  ? zap_class+0x640/0x640
[  645.209973]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  645.215515]  ? find_held_lock+0x36/0x1c0
[  645.219585]  ? mark_held_locks+0xc7/0x130
[  645.223744]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  645.228853]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  645.233956]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  645.238537]  ? trace_hardirqs_on+0xbd/0x310
[  645.242870]  ? kasan_check_read+0x11/0x20
[  645.247033]  ? ___ratelimit+0x3b4/0x672
[  645.251010]  ? trace_hardirqs_off_caller+0x310/0x310
[  645.256117]  ? trace_hardirqs_on+0x310/0x310
[  645.260525]  ? lock_downgrade+0x900/0x900
[  645.264712]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  645.269826]  ? ___ratelimit+0x3b9/0x672
[  645.273807]  ? idr_get_free+0xf70/0xf70
[  645.277785]  ? find_held_lock+0x36/0x1c0
[  645.281856]  oom_kill_process.cold.27+0x10/0x903
[  645.286613]  ? zap_class+0x640/0x640
[  645.290328]  ? check_preemption_disabled+0x48/0x280
[  645.295344]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  645.300291]  ? kasan_check_read+0x11/0x20
[  645.304436]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  645.309712]  ? oom_evaluate_task+0x540/0x540
[  645.314133]  ? find_held_lock+0x36/0x1c0
[  645.318205]  ? out_of_memory+0x974/0x1430
[  645.322358]  ? lock_downgrade+0x900/0x900
[  645.326508]  ? check_preemption_disabled+0x48/0x280
[  645.331526]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  645.336454]  ? kasan_check_read+0x11/0x20
[  645.340604]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  645.345881]  ? rcu_softirq_qs+0x20/0x20
[  645.349864]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  645.355402]  ? oom_evaluate_task+0x302/0x540
[  645.359813]  out_of_memory+0xa84/0x1430
[  645.363796]  ? oom_killer_disable+0x3a0/0x3a0
[  645.368297]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  645.373233]  ? __ww_mutex_check_waiters+0x160/0x160
[  645.378299]  __alloc_pages_slowpath+0x232c/0x2de0
[  645.383184]  ? warn_alloc+0x120/0x120
[  645.386986]  ? mark_held_locks+0x130/0x130
[  645.391230]  ? find_get_entry+0xaae/0x1120
[  645.395480]  ? filemap_map_pages+0x1a20/0x1a20
[  645.400071]  ? zap_class+0x640/0x640
[  645.403793]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  645.409332]  ? check_preemption_disabled+0x48/0x280
[  645.414362]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  645.419903]  ? should_fail+0x22d/0xd01
[  645.423798]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  645.428943]  ? zap_class+0x640/0x640
[  645.432696]  ? __lock_is_held+0xb5/0x140
[  645.436773]  ? mark_held_locks+0x130/0x130
[  645.441011]  ? lock_release+0xa00/0xa00
[  645.444985]  ? perf_trace_sched_process_exec+0x860/0x860
[  645.450437]  ? xa_load+0x2ba/0x460
[  645.453979]  ? lock_downgrade+0x900/0x900
[  645.458136]  ? __might_sleep+0x95/0x190
[  645.462114]  __alloc_pages_nodemask+0xad8/0xea0
[  645.466794]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  645.471811]  ? __page_cache_alloc+0x191/0x5c0
[  645.476304]  ? xa_load+0x2e1/0x460
[  645.479844]  ? xa_clear_mark+0x40/0x40
[  645.483743]  ? zap_class+0x640/0x640
[  645.487472]  ? zap_class+0x640/0x640
[  645.491183]  ? zap_class+0x640/0x640
[  645.494894]  ? __do_page_cache_readahead+0x663/0x810
[  645.500006]  ? find_held_lock+0x36/0x1c0
[  645.504072]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  645.509615]  alloc_pages_current+0x173/0x350
[  645.514048]  __page_cache_alloc+0x38c/0x5c0
[  645.518400]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  645.523376]  ? kasan_check_read+0x11/0x20
[  645.527523]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  645.532803]  ? generic_perform_write+0x6a0/0x6a0
[  645.537562]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  645.543102]  ? check_preemption_disabled+0x48/0x280
[  645.548128]  filemap_fault+0x1595/0x25f0
[  645.552205]  ? __lock_page_or_retry+0xa00/0xa00
[  645.556876]  ? mark_held_locks+0x130/0x130
[  645.561120]  ? filemap_map_pages+0xd6b/0x1a20
[  645.565619]  ? lock_downgrade+0x900/0x900
[  645.569782]  ? check_preemption_disabled+0x48/0x280
[  645.574801]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  645.579728]  ? kasan_check_read+0x11/0x20
[  645.583892]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  645.589166]  ? rcu_softirq_qs+0x20/0x20
[  645.593156]  ? filemap_map_pages+0xd92/0x1a20
[  645.597656]  ? print_usage_bug+0xc0/0xc0
[  645.601720]  ? find_get_entries_tag+0x1400/0x1400
[  645.606567]  ? __kasan_slab_free+0x102/0x150
[  645.610977]  ? kasan_slab_free+0xe/0x10
[  645.614950]  ? kmem_cache_free+0x83/0x290
[  645.619102]  ? __sigqueue_free.part.29+0x74/0x90
[  645.623881]  ? lock_acquire+0x1ed/0x520
[  645.627858]  ? ext4_filemap_fault+0x7a/0xad
[  645.632188]  ? lock_release+0xa00/0xa00
[  645.636158]  ? perf_trace_sched_process_exec+0x860/0x860
[  645.641613]  ? print_usage_bug+0xc0/0xc0
[  645.645690]  ? print_usage_bug+0xc0/0xc0
[  645.649771]  ? down_read+0x8d/0x120
[  645.653396]  ? ext4_filemap_fault+0x7a/0xad
[  645.657719]  ? __down_interruptible+0x700/0x700
[  645.662404]  ext4_filemap_fault+0x82/0xad
[  645.666556]  __do_fault+0x100/0x6b0
[  645.670191]  ? pmd_devmap_trans_unstable+0x220/0x220
[  645.675302]  ? mark_held_locks+0x130/0x130
[  645.679536]  ? mark_held_locks+0x130/0x130
[  645.683780]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  645.689323]  ? rcu_pm_notify+0xc0/0xc0
[  645.693222]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  645.698768]  __handle_mm_fault+0x3ea0/0x5be0
[  645.703187]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  645.708039]  ? _raw_spin_unlock_irq+0x27/0x80
[  645.712534]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  645.717122]  ? trace_hardirqs_on+0xbd/0x310
[  645.721442]  ? kasan_check_read+0x11/0x20
[  645.725591]  ? __set_current_blocked+0xdf/0x120
[  645.730270]  ? trace_hardirqs_off_caller+0x310/0x310
[  645.735387]  ? zap_class+0x640/0x640
[  645.739101]  ? zap_class+0x640/0x640
[  645.742824]  ? find_held_lock+0x36/0x1c0
[  645.746896]  ? handle_mm_fault+0x42a/0xc70
[  645.751134]  ? lock_downgrade+0x900/0x900
[  645.755286]  ? check_preemption_disabled+0x48/0x280
[  645.760309]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  645.765254]  ? kasan_check_read+0x11/0x20
[  645.769417]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  645.774694]  ? rcu_softirq_qs+0x20/0x20
[  645.778672]  ? trace_hardirqs_off_caller+0x310/0x310
[  645.783784]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  645.789326]  ? check_preemption_disabled+0x48/0x280
[  645.794364]  handle_mm_fault+0x54f/0xc70
[  645.798455]  ? __handle_mm_fault+0x5be0/0x5be0
[  645.803044]  ? find_vma+0x34/0x190
[  645.806593]  __do_page_fault+0x5e8/0xe60
[  645.810654]  ? exit_to_usermode_loop+0x1f4/0x380
[  645.815429]  do_page_fault+0xf2/0x7e0
[  645.819231]  ? vmalloc_sync_all+0x30/0x30
[  645.823384]  ? error_entry+0x70/0xd0
[  645.827111]  ? trace_hardirqs_off_caller+0xbb/0x310
[  645.832131]  ? trace_hardirqs_on_caller+0xc0/0x310
[  645.837057]  ? syscall_return_slowpath+0x5e0/0x5e0
[  645.841985]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  645.846826]  ? trace_hardirqs_on_caller+0x310/0x310
[  645.851839]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  645.857296]  ? prepare_exit_to_usermode+0x291/0x3b0
[  645.862316]  ? page_fault+0x8/0x30
[  645.865860]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  645.870703]  ? page_fault+0x8/0x30
[  645.874243]  page_fault+0x1e/0x30
[  645.877695] RIP: 0033:0x45db60
[  645.880905] Code: Bad RIP value.
[  645.884268] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  645.889627] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  645.896918] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  645.904183] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  645.911444] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  645.918708] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  645.926004] warn_alloc_show_mem: 1 callbacks suppressed
[  645.926016] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  645.926018] Mem-Info:
[  645.926049] active_anon:42936 inactive_anon:306 isolated_anon:0
[  645.926049]  active_file:13 inactive_file:13 isolated_file:0
[  645.926049]  unevictable:0 dirty:0 writeback:0 unstable:0
[  645.926049]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  645.926049]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  645.926049]  free:13785 free_pcp:492 free_cma:0
[  645.931385] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  645.938227] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  645.940625] Call Trace:
[  645.973398] 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
[  645.982766]  dump_stack+0x244/0x39d
[  646.010309] lowmem_reserve[]: 0 2818 6321 6321
[  646.012905]  ? dump_stack_print_info.cold.1+0x20/0x20
[  646.038988] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  646.042629]  warn_alloc.cold.116+0xb7/0x1bd
[  646.047167] lowmem_reserve[]: 0 0 3503 3503
[  646.052356]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  646.079482] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  646.083809]  ? lock_downgrade+0x900/0x900
[  646.088105] lowmem_reserve[]: 0 0 0 0
[  646.092966]  ? trace_hardirqs_off+0xb8/0x310
[  646.122079] 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
[  646.126254]  ? trace_hardirqs_off+0xb8/0x310
[  646.130046] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  646.134453]  __alloc_pages_slowpath+0x2651/0x2de0
[  646.147948] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  646.152375]  ? warn_alloc+0x120/0x120
[  646.167505] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  646.172336]  ? print_usage_bug+0xc0/0xc0
[  646.187484] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  646.191269]  ? warn_alloc+0x120/0x120
[  646.200087] 380 total pagecache pages
[  646.204142]  ? warn_alloc+0x120/0x120
[  646.212695] 0 pages in swap cache
[  646.216489]  ? print_usage_bug+0xc0/0xc0
[  646.220266] Swap cache stats: add 0, delete 0, find 0/0
[  646.224049]  ? print_usage_bug+0xc0/0xc0
[  646.227476] Free swap  = 0kB
[  646.231530]  ? __lock_acquire+0x62f/0x4c20
[  646.236865] Total swap = 0kB
[  646.240919]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  646.243909] 1965979 pages RAM
[  646.248135]  ? should_fail+0x22d/0xd01
[  646.251127] 0 pages HighMem/MovableOnly
[  646.256655]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  646.259744] 342854 pages reserved
[  646.263623]  ? __lock_acquire+0x62f/0x4c20
[  646.267569] 0 pages cma reserved
[  646.272667]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  646.276155] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  646.280318]  ? __lock_acquire+0x62f/0x4c20
[  646.280331]  ? should_fail+0x22d/0xd01
[  646.280346]  ? find_held_lock+0x36/0x1c0
[  646.280367]  ? mark_held_locks+0x130/0x130
[  646.283838] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  646.288810]  ? mark_held_locks+0x130/0x130
[  646.288826]  ? zap_class+0x640/0x640
[  646.295605] syz-fuzzer cpuset=/ mems_allowed=0
[  646.299843]  ? mark_held_locks+0xc7/0x130
[  646.338991]  ? do_raw_spin_unlock+0xa7/0x330
[  646.343397]  ? zap_class+0x640/0x640
[  646.347109]  ? print_usage_bug+0xc0/0xc0
[  646.351176]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  646.356713]  ? check_preemption_disabled+0x48/0x280
[  646.361753]  ? __lock_is_held+0xb5/0x140
[  646.365844]  __alloc_pages_nodemask+0xad8/0xea0
[  646.370515]  ? zap_class+0x640/0x640
[  646.374249]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  646.379314]  ? find_held_lock+0x36/0x1c0
[  646.383401]  ? ____cache_alloc_node+0x1c7/0x1e0
[  646.388069]  ? lock_downgrade+0x900/0x900
[  646.392231]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  646.397782]  cache_grow_begin+0xa5/0x8c0
[  646.401843]  ? do_raw_spin_unlock+0xa7/0x330
[  646.406259]  fallback_alloc+0x204/0x2e0
[  646.410253]  ____cache_alloc_node+0x1c7/0x1e0
[  646.414767]  kmem_cache_alloc_node+0xe3/0x730
[  646.419273]  ? ipv6_get_ifaddr+0x42e/0x620
[  646.423518]  __alloc_skb+0x119/0x770
[  646.427259]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  646.432558]  ? netdev_alloc_frag+0x1f0/0x1f0
[  646.436968]  ? lock_downgrade+0x900/0x900
[  646.441129]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  646.446684]  ? refcount_sub_and_test_checked+0x203/0x310
[  646.452136]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  646.457585]  ? addrconf_rs_timer+0x690/0x690
[  646.462006]  ndisc_alloc_skb+0x144/0x340
[  646.466072]  ndisc_send_rs+0x331/0x6e0
[  646.469965]  addrconf_rs_timer+0x314/0x690
[  646.474205]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  646.478452]  call_timer_fn+0x272/0x920
[  646.482357]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  646.486586]  ? process_timeout+0x40/0x40
[  646.490651]  ? __run_timers+0x7da/0xc70
[  646.494628]  ? _raw_spin_unlock_irq+0x27/0x80
[  646.499132]  ? _raw_spin_unlock_irq+0x27/0x80
[  646.503642]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  646.507880]  ? lockdep_hardirqs_on+0x296/0x5b0
[  646.512478]  ? trace_hardirqs_on+0xbd/0x310
[  646.516798]  ? kasan_check_read+0x11/0x20
[  646.520941]  ? __run_timers+0x7da/0xc70
[  646.524932]  ? trace_hardirqs_off_caller+0x310/0x310
[  646.530040]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  646.534277]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  646.538515]  __run_timers+0x7e5/0xc70
[  646.542330]  ? timer_fixup_init+0x70/0x70
[  646.546475]  ? _raw_spin_unlock_irq+0x27/0x80
[  646.550966]  ? _raw_spin_unlock_irq+0x27/0x80
[  646.555910]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  646.560493]  ? trace_hardirqs_on+0xbd/0x310
[  646.564814]  ? kasan_check_read+0x11/0x20
[  646.568962]  ? finish_task_switch+0x1f4/0x910
[  646.573457]  ? trace_hardirqs_off_caller+0x310/0x310
[  646.578559]  ? compat_start_thread+0x80/0x80
[  646.582992]  ? pvclock_read_flags+0x160/0x160
[  646.587481]  ? __switch_to_asm+0x34/0x70
[  646.591580]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  646.597120]  ? check_preemption_disabled+0x48/0x280
[  646.602146]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  646.607700]  ? rcu_pm_notify+0xc0/0xc0
[  646.611610]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  646.617147]  ? check_preemption_disabled+0x48/0x280
[  646.622169]  run_timer_softirq+0x52/0xb0
[  646.626227]  ? rcu_read_lock_sched_held+0x14f/0x180
[  646.631242]  __do_softirq+0x308/0xb7e
[  646.635047]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  646.639822]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  646.644920]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  646.650383]  ? trace_hardirqs_on+0x310/0x310
[  646.654802]  ? schedule+0x108/0x460
[  646.658437]  ? trace_hardirqs_off+0xb8/0x310
[  646.662847]  ? smpboot_thread_fn+0x68b/0xa00
[  646.667258]  ? trace_hardirqs_on+0x310/0x310
[  646.671664]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  646.677202]  ? check_preemption_disabled+0x48/0x280
[  646.682215]  ? takeover_tasklets+0xa90/0xa90
[  646.686811]  run_ksoftirqd+0x5e/0x100
[  646.690616]  smpboot_thread_fn+0x68b/0xa00
[  646.694853]  ? sort_range+0x30/0x30
[  646.698481]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  646.703595]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  646.709146]  ? __kthread_parkme+0xfb/0x1a0
[  646.713381]  ? sort_range+0x30/0x30
[  646.717003]  kthread+0x35a/0x440
[  646.720367]  ? kthread_stop+0x900/0x900
[  646.724354]  ret_from_fork+0x3a/0x50
[  646.728083] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  646.728176] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  646.735093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  646.735099] Call Trace:
[  646.735106]  <IRQ>
[  646.735124]  dump_stack+0x244/0x39d
[  646.735143]  ? dump_stack_print_info.cold.1+0x20/0x20
[  646.741702] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  646.750990]  warn_alloc.cold.116+0xb7/0x1bd
[  646.753560] ksoftirqd/0 cpuset=/ mems_allowed=0
[  646.755715]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  646.788669]  ? lock_downgrade+0x900/0x900
[  646.792824]  ? trace_hardirqs_off+0xb8/0x310
[  646.797250]  ? trace_hardirqs_off+0xb8/0x310
[  646.801676]  __alloc_pages_slowpath+0x2651/0x2de0
[  646.806545]  ? warn_alloc+0x120/0x120
[  646.810355]  ? warn_alloc+0x120/0x120
[  646.814160]  ? warn_alloc+0x120/0x120
[  646.817963]  ? find_held_lock+0x36/0x1c0
[  646.822024]  ? print_usage_bug+0xc0/0xc0
[  646.826087]  ? print_usage_bug+0xc0/0xc0
[  646.830150]  ? update_curr+0x4cf/0xbd0
[  646.834045]  ? check_preemption_disabled+0x48/0x280
[  646.839069]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  646.844603]  ? should_fail+0x22d/0xd01
[  646.848488]  ? print_usage_bug+0xc0/0xc0
[  646.852547]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  646.857833]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  646.862950]  ? __lock_acquire+0x62f/0x4c20
[  646.867193]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  646.872295]  ? should_fail+0x22d/0xd01
[  646.876198]  ? mark_held_locks+0x130/0x130
[  646.880439]  ? mark_held_locks+0x130/0x130
[  646.884682]  ? zap_class+0x640/0x640
[  646.888394]  ? mark_held_locks+0x130/0x130
[  646.892679]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  646.898219]  ? check_preemption_disabled+0x48/0x280
[  646.903243]  ? __lock_is_held+0xb5/0x140
[  646.907315]  __alloc_pages_nodemask+0xad8/0xea0
[  646.911983]  ? zap_class+0x640/0x640
[  646.915699]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  646.920789]  ? find_held_lock+0x36/0x1c0
[  646.924892]  ? ____cache_alloc_node+0x1c7/0x1e0
[  646.929576]  ? lock_downgrade+0x900/0x900
[  646.933731]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  646.939284]  cache_grow_begin+0xa5/0x8c0
[  646.943347]  ? do_raw_spin_unlock+0xa7/0x330
[  646.947770]  fallback_alloc+0x204/0x2e0
[  646.951802]  ____cache_alloc_node+0x1c7/0x1e0
[  646.956309]  kmem_cache_alloc_node+0xe3/0x730
[  646.960818]  ? lockdep_hardirqs_on+0x296/0x5b0
[  646.965417]  __alloc_skb+0x119/0x770
[  646.969131]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  646.974502]  ? netdev_alloc_frag+0x1f0/0x1f0
[  646.978914]  ? lock_acquire+0x1ed/0x520
[  646.982915]  ? aoecmd_cfg+0x108/0x7f0
[  646.986722]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  646.992273]  ? check_preemption_disabled+0x48/0x280
[  646.997303]  ? kasan_check_read+0x11/0x20
[  647.001449]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  647.006728]  ? rcu_softirq_qs+0x20/0x20
[  647.010722]  new_skb+0x26/0x1c0
[  647.014011]  aoecmd_cfg+0x279/0x7f0
[  647.017639]  ? find_held_lock+0x36/0x1c0
[  647.021702]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  647.026033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  647.031573]  ? check_preemption_disabled+0x48/0x280
[  647.036610]  ? __lock_is_held+0xb5/0x140
[  647.040681]  discover_timer+0x50/0x60
[  647.044480]  call_timer_fn+0x272/0x920
[  647.048370]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  647.053216]  ? process_timeout+0x40/0x40
[  647.057291]  ? mark_held_locks+0xc7/0x130
[  647.061440]  ? _raw_spin_unlock_irq+0x27/0x80
[  647.065937]  ? _raw_spin_unlock_irq+0x27/0x80
[  647.070433]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  647.075281]  ? lockdep_hardirqs_on+0x296/0x5b0
[  647.079866]  ? trace_hardirqs_on+0xbd/0x310
[  647.084187]  ? kasan_check_read+0x11/0x20
[  647.088349]  ? __run_timers+0x7da/0xc70
[  647.092323]  ? trace_hardirqs_off_caller+0x310/0x310
[  647.097440]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  647.102293]  __run_timers+0x7e5/0xc70
[  647.106102]  ? timer_fixup_init+0x70/0x70
[  647.110251]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  647.115280]  ? zap_class+0x640/0x640
[  647.119004]  ? print_usage_bug+0xc0/0xc0
[  647.123070]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  647.128279]  ? find_held_lock+0x36/0x1c0
[  647.132351]  ? zap_class+0x640/0x640
[  647.136086]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  647.141623]  ? check_preemption_disabled+0x48/0x280
[  647.146647]  ? __lock_is_held+0xb5/0x140
[  647.150713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  647.156266]  ? check_preemption_disabled+0x48/0x280
[  647.161296]  run_timer_softirq+0x52/0xb0
[  647.165358]  ? rcu_read_lock_sched_held+0x14f/0x180
[  647.170377]  __do_softirq+0x308/0xb7e
[  647.174182]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  647.178674]  ? lock_downgrade+0x900/0x900
[  647.182829]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  647.187943]  ? pvclock_read_flags+0x160/0x160
[  647.192441]  ? lapic_next_event+0x5a/0x90
[  647.196592]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  647.202132]  ? kvm_clock_read+0x18/0x30
[  647.206106]  ? kvm_sched_clock_read+0x9/0x20
[  647.210521]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  647.216060]  ? check_preemption_disabled+0x48/0x280
[  647.221090]  irq_exit+0x17f/0x1c0
[  647.224543]  smp_apic_timer_interrupt+0x1cb/0x760
[  647.229382]  ? smp_reschedule_interrupt+0x109/0x650
[  647.234402]  ? smp_call_function_single_interrupt+0x650/0x650
[  647.240306]  ? interrupt_entry+0xb5/0xc0
[  647.244372]  ? trace_hardirqs_off_caller+0xbb/0x310
[  647.249384]  ? trace_hardirqs_off_caller+0xbb/0x310
[  647.254404]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  647.259246]  ? trace_hardirqs_on_caller+0x310/0x310
[  647.264272]  ? trace_hardirqs_on_caller+0x310/0x310
[  647.269295]  ? task_prio+0x50/0x50
[  647.272840]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  647.278378]  ? check_preemption_disabled+0x48/0x280
[  647.283399]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  647.288273]  apic_timer_interrupt+0xf/0x20
[  647.292499]  </IRQ>
[  647.294748] RIP: 0010:dump_stack+0x358/0x39d
[  647.299159] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  647.318068] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  647.327860] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  647.335130] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  647.342424] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  647.349687] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  647.356964] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  647.364254]  ? dump_stack+0x34f/0x39d
[  647.368092]  ? dump_stack_print_info.cold.1+0x20/0x20
[  647.373290]  ? mark_held_locks+0x130/0x130
[  647.377545]  ? mark_held_locks+0x130/0x130
[  647.381783]  dump_header+0x27b/0xf72
[  647.385516]  ? pagefault_out_of_memory+0x197/0x197
[  647.390463]  ? __lock_acquire+0x62f/0x4c20
[  647.394700]  ? percpu_ref_get_many+0x240/0x240
[  647.399304]  ? print_usage_bug+0xc0/0xc0
[  647.403374]  ? zap_class+0x640/0x640
[  647.407089]  ? print_usage_bug+0xc0/0xc0
[  647.411150]  ? print_usage_bug+0xc0/0xc0
[  647.415214]  ? zap_class+0x640/0x640
[  647.418952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  647.424497]  ? find_held_lock+0x36/0x1c0
[  647.428570]  ? mark_held_locks+0xc7/0x130
[  647.432720]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  647.437834]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  647.442943]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  647.447528]  ? trace_hardirqs_on+0xbd/0x310
[  647.451852]  ? kasan_check_read+0x11/0x20
[  647.455998]  ? ___ratelimit+0x3b4/0x672
[  647.459977]  ? trace_hardirqs_off_caller+0x310/0x310
[  647.465079]  ? trace_hardirqs_on+0x310/0x310
[  647.469488]  ? lock_downgrade+0x900/0x900
[  647.473641]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  647.478751]  ? ___ratelimit+0x3b9/0x672
[  647.482734]  ? idr_get_free+0xf70/0xf70
[  647.486715]  ? find_held_lock+0x36/0x1c0
[  647.490794]  oom_kill_process.cold.27+0x10/0x903
[  647.495549]  ? zap_class+0x640/0x640
[  647.499277]  ? check_preemption_disabled+0x48/0x280
[  647.504295]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  647.509240]  ? kasan_check_read+0x11/0x20
[  647.513418]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  647.518701]  ? oom_evaluate_task+0x540/0x540
[  647.523111]  ? find_held_lock+0x36/0x1c0
[  647.527182]  ? out_of_memory+0x974/0x1430
[  647.531331]  ? lock_downgrade+0x900/0x900
[  647.535480]  ? check_preemption_disabled+0x48/0x280
[  647.540524]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  647.545452]  ? kasan_check_read+0x11/0x20
[  647.549598]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  647.554873]  ? rcu_softirq_qs+0x20/0x20
[  647.558851]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  647.564400]  ? oom_evaluate_task+0x302/0x540
[  647.568842]  out_of_memory+0xa84/0x1430
[  647.572827]  ? oom_killer_disable+0x3a0/0x3a0
[  647.577323]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  647.582265]  ? __ww_mutex_check_waiters+0x160/0x160
[  647.587296]  __alloc_pages_slowpath+0x232c/0x2de0
[  647.592185]  ? warn_alloc+0x120/0x120
[  647.595984]  ? mark_held_locks+0x130/0x130
[  647.600235]  ? find_get_entry+0xaae/0x1120
[  647.604513]  ? filemap_map_pages+0x1a20/0x1a20
[  647.609115]  ? zap_class+0x640/0x640
[  647.612834]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  647.618377]  ? check_preemption_disabled+0x48/0x280
[  647.623390]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  647.628925]  ? should_fail+0x22d/0xd01
[  647.632816]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  647.637941]  ? zap_class+0x640/0x640
[  647.641678]  ? __lock_is_held+0xb5/0x140
[  647.645751]  ? mark_held_locks+0x130/0x130
[  647.650010]  ? lock_release+0xa00/0xa00
[  647.653987]  ? perf_trace_sched_process_exec+0x860/0x860
[  647.659434]  ? xa_load+0x2ba/0x460
[  647.662974]  ? lock_downgrade+0x900/0x900
[  647.667129]  ? __might_sleep+0x95/0x190
[  647.671111]  __alloc_pages_nodemask+0xad8/0xea0
[  647.675788]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  647.680823]  ? __page_cache_alloc+0x191/0x5c0
[  647.685315]  ? xa_load+0x2e1/0x460
[  647.688856]  ? xa_clear_mark+0x40/0x40
[  647.692765]  ? zap_class+0x640/0x640
[  647.696501]  ? zap_class+0x640/0x640
[  647.700227]  ? zap_class+0x640/0x640
[  647.703941]  ? __do_page_cache_readahead+0x663/0x810
[  647.709077]  ? find_held_lock+0x36/0x1c0
[  647.713138]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  647.718678]  alloc_pages_current+0x173/0x350
[  647.723105]  __page_cache_alloc+0x38c/0x5c0
[  647.727428]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  647.732386]  ? kasan_check_read+0x11/0x20
[  647.736532]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  647.741809]  ? generic_perform_write+0x6a0/0x6a0
[  647.746563]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  647.752098]  ? check_preemption_disabled+0x48/0x280
[  647.757124]  filemap_fault+0x1595/0x25f0
[  647.761195]  ? __lock_page_or_retry+0xa00/0xa00
[  647.765873]  ? mark_held_locks+0x130/0x130
[  647.770114]  ? filemap_map_pages+0xd6b/0x1a20
[  647.774629]  ? lock_downgrade+0x900/0x900
[  647.778792]  ? check_preemption_disabled+0x48/0x280
[  647.783810]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  647.788762]  ? kasan_check_read+0x11/0x20
[  647.792911]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  647.798184]  ? rcu_softirq_qs+0x20/0x20
[  647.802168]  ? filemap_map_pages+0xd92/0x1a20
[  647.806664]  ? print_usage_bug+0xc0/0xc0
[  647.810730]  ? find_get_entries_tag+0x1400/0x1400
[  647.815594]  ? __kasan_slab_free+0x102/0x150
[  647.820018]  ? kasan_slab_free+0xe/0x10
[  647.824007]  ? kmem_cache_free+0x83/0x290
[  647.828152]  ? __sigqueue_free.part.29+0x74/0x90
[  647.832927]  ? lock_acquire+0x1ed/0x520
[  647.836900]  ? ext4_filemap_fault+0x7a/0xad
[  647.841249]  ? lock_release+0xa00/0xa00
[  647.845225]  ? perf_trace_sched_process_exec+0x860/0x860
[  647.850675]  ? print_usage_bug+0xc0/0xc0
[  647.854744]  ? print_usage_bug+0xc0/0xc0
[  647.858831]  ? down_read+0x8d/0x120
[  647.862451]  ? ext4_filemap_fault+0x7a/0xad
[  647.866785]  ? __down_interruptible+0x700/0x700
[  647.871476]  ext4_filemap_fault+0x82/0xad
[  647.875626]  __do_fault+0x100/0x6b0
[  647.879265]  ? pmd_devmap_trans_unstable+0x220/0x220
[  647.884371]  ? mark_held_locks+0x130/0x130
[  647.888610]  ? mark_held_locks+0x130/0x130
[  647.892851]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  647.898394]  ? rcu_pm_notify+0xc0/0xc0
[  647.902296]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  647.907842]  __handle_mm_fault+0x3ea0/0x5be0
[  647.912266]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  647.917123]  ? _raw_spin_unlock_irq+0x27/0x80
[  647.921637]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  647.926222]  ? trace_hardirqs_on+0xbd/0x310
[  647.930561]  ? kasan_check_read+0x11/0x20
[  647.934707]  ? __set_current_blocked+0xdf/0x120
[  647.939386]  ? trace_hardirqs_off_caller+0x310/0x310
[  647.944498]  ? zap_class+0x640/0x640
[  647.948209]  ? zap_class+0x640/0x640
[  647.951934]  ? find_held_lock+0x36/0x1c0
[  647.956002]  ? handle_mm_fault+0x42a/0xc70
[  647.960256]  ? lock_downgrade+0x900/0x900
[  647.964411]  ? check_preemption_disabled+0x48/0x280
[  647.969426]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  647.974370]  ? kasan_check_read+0x11/0x20
[  647.978529]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  647.983809]  ? rcu_softirq_qs+0x20/0x20
[  647.987786]  ? trace_hardirqs_off_caller+0x310/0x310
[  647.992889]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  647.998430]  ? check_preemption_disabled+0x48/0x280
[  648.003457]  handle_mm_fault+0x54f/0xc70
[  648.007541]  ? __handle_mm_fault+0x5be0/0x5be0
[  648.012140]  ? find_vma+0x34/0x190
[  648.015685]  __do_page_fault+0x5e8/0xe60
[  648.019764]  ? exit_to_usermode_loop+0x1f4/0x380
[  648.024531]  do_page_fault+0xf2/0x7e0
[  648.028348]  ? vmalloc_sync_all+0x30/0x30
[  648.032493]  ? error_entry+0x70/0xd0
[  648.036206]  ? trace_hardirqs_off_caller+0xbb/0x310
[  648.041219]  ? trace_hardirqs_on_caller+0xc0/0x310
[  648.046149]  ? syscall_return_slowpath+0x5e0/0x5e0
[  648.051077]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  648.055916]  ? trace_hardirqs_on_caller+0x310/0x310
[  648.060945]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  648.066399]  ? prepare_exit_to_usermode+0x291/0x3b0
[  648.071416]  ? page_fault+0x8/0x30
[  648.074970]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  648.079830]  ? page_fault+0x8/0x30
[  648.083374]  page_fault+0x1e/0x30
[  648.086828] RIP: 0033:0x45db60
[  648.090059] Code: Bad RIP value.
[  648.093415] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  648.098774] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  648.106037] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  648.113314] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  648.120598] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  648.127862] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  648.135154] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  648.135159] warn_alloc_show_mem: 1 callbacks suppressed
[  648.135167] Mem-Info:
[  648.142002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  648.147363] active_anon:42936 inactive_anon:306 isolated_anon:0
[  648.147363]  active_file:13 inactive_file:13 isolated_file:0
[  648.147363]  unevictable:0 dirty:0 writeback:0 unstable:0
[  648.147363]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  648.147363]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  648.147363]  free:13785 free_pcp:492 free_cma:0
[  648.149731] Call Trace:
[  648.159122] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  648.191886]  dump_stack+0x244/0x39d
[  648.194444] 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
[  648.222039]  ? dump_stack_print_info.cold.1+0x20/0x20
[  648.225634] lowmem_reserve[]: 0 2818 6321 6321
[  648.251800]  warn_alloc.cold.116+0xb7/0x1bd
[  648.256955] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  648.261531]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  648.265828] lowmem_reserve[]: 0 0 3503 3503
[  648.292972]  ? lock_downgrade+0x900/0x900
[  648.297796] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  648.302113]  ? trace_hardirqs_off+0xb8/0x310
[  648.306246] lowmem_reserve[]: 0 0 0 0
[  648.335391]  ? trace_hardirqs_off+0xb8/0x310
[  648.339783] 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
[  648.343583]  __alloc_pages_slowpath+0x2651/0x2de0
[  648.347960] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  648.361503]  ? warn_alloc+0x120/0x120
[  648.366295] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  648.381456]  ? print_usage_bug+0xc0/0xc0
[  648.385233] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  648.400388]  ? warn_alloc+0x120/0x120
[  648.404428] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  648.413254]  ? warn_alloc+0x120/0x120
[  648.417030] 380 total pagecache pages
[  648.425598]  ? print_usage_bug+0xc0/0xc0
[  648.429379] 0 pages in swap cache
[  648.433167]  ? print_usage_bug+0xc0/0xc0
[  648.437202] Swap cache stats: add 0, delete 0, find 0/0
[  648.440643]  ? __lock_acquire+0x62f/0x4c20
[  648.444693] Free swap  = 0kB
[  648.450051]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  648.454258] Total swap = 0kB
[  648.457270]  ? should_fail+0x22d/0xd01
[  648.462786] 1965979 pages RAM
[  648.465828]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  648.469704] 0 pages HighMem/MovableOnly
[  648.472805]  ? __lock_acquire+0x62f/0x4c20
[  648.477886] 342854 pages reserved
[  648.481851]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  648.486058] 0 pages cma reserved
[  648.489501]  ? __lock_acquire+0x62f/0x4c20
[  648.494634] aoe: skb alloc failure
[  648.497930]  ? should_fail+0x22d/0xd01
[  648.497946]  ? find_held_lock+0x36/0x1c0
[  648.502218] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  648.505694]  ? mark_held_locks+0x130/0x130
[  648.509555] syz-fuzzer cpuset=/ mems_allowed=0
[  648.513617]  ? mark_held_locks+0x130/0x130
[  648.536827]  ? zap_class+0x640/0x640
[  648.540544]  ? mark_held_locks+0xc7/0x130
[  648.544690]  ? do_raw_spin_unlock+0xa7/0x330
[  648.549095]  ? zap_class+0x640/0x640
[  648.552814]  ? print_usage_bug+0xc0/0xc0
[  648.557382]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  648.562922]  ? check_preemption_disabled+0x48/0x280
[  648.567946]  ? __lock_is_held+0xb5/0x140
[  648.572015]  __alloc_pages_nodemask+0xad8/0xea0
[  648.576687]  ? zap_class+0x640/0x640
[  648.580406]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  648.585434]  ? find_held_lock+0x36/0x1c0
[  648.589524]  ? ____cache_alloc_node+0x1c7/0x1e0
[  648.594197]  ? lock_downgrade+0x900/0x900
[  648.598364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  648.603907]  cache_grow_begin+0xa5/0x8c0
[  648.607970]  ? do_raw_spin_unlock+0xa7/0x330
[  648.612383]  fallback_alloc+0x204/0x2e0
[  648.616379]  ____cache_alloc_node+0x1c7/0x1e0
[  648.620878]  kmem_cache_alloc_node+0xe3/0x730
[  648.625373]  ? ipv6_get_ifaddr+0x42e/0x620
[  648.629620]  __alloc_skb+0x119/0x770
[  648.633334]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  648.638618]  ? netdev_alloc_frag+0x1f0/0x1f0
[  648.643024]  ? lock_downgrade+0x900/0x900
[  648.647178]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  648.652716]  ? refcount_sub_and_test_checked+0x203/0x310
[  648.658182]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  648.663632]  ? addrconf_rs_timer+0x690/0x690
[  648.668065]  ndisc_alloc_skb+0x144/0x340
[  648.672129]  ndisc_send_rs+0x331/0x6e0
[  648.676026]  addrconf_rs_timer+0x314/0x690
[  648.680270]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  648.684520]  call_timer_fn+0x272/0x920
[  648.688414]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  648.692651]  ? process_timeout+0x40/0x40
[  648.696720]  ? __run_timers+0x7da/0xc70
[  648.700708]  ? _raw_spin_unlock_irq+0x27/0x80
[  648.705207]  ? _raw_spin_unlock_irq+0x27/0x80
[  648.709697]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  648.713935]  ? lockdep_hardirqs_on+0x296/0x5b0
[  648.718520]  ? trace_hardirqs_on+0xbd/0x310
[  648.722840]  ? kasan_check_read+0x11/0x20
[  648.726984]  ? __run_timers+0x7da/0xc70
[  648.730960]  ? trace_hardirqs_off_caller+0x310/0x310
[  648.736066]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  648.740305]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  648.744539]  __run_timers+0x7e5/0xc70
[  648.748348]  ? timer_fixup_init+0x70/0x70
[  648.752493]  ? _raw_spin_unlock_irq+0x27/0x80
[  648.756992]  ? _raw_spin_unlock_irq+0x27/0x80
[  648.761488]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  648.766069]  ? trace_hardirqs_on+0xbd/0x310
[  648.770393]  ? kasan_check_read+0x11/0x20
[  648.774545]  ? finish_task_switch+0x1f4/0x910
[  648.779044]  ? trace_hardirqs_off_caller+0x310/0x310
[  648.784145]  ? compat_start_thread+0x80/0x80
[  648.788575]  ? pvclock_read_flags+0x160/0x160
[  648.793070]  ? __switch_to_asm+0x34/0x70
[  648.797133]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  648.802674]  ? check_preemption_disabled+0x48/0x280
[  648.807699]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  648.813235]  ? rcu_pm_notify+0xc0/0xc0
[  648.817124]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  648.822680]  ? check_preemption_disabled+0x48/0x280
[  648.827703]  run_timer_softirq+0x52/0xb0
[  648.831777]  ? rcu_read_lock_sched_held+0x14f/0x180
[  648.836799]  __do_softirq+0x308/0xb7e
[  648.840606]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  648.845365]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  648.850466]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  648.855918]  ? trace_hardirqs_on+0x310/0x310
[  648.860336]  ? schedule+0x108/0x460
[  648.863973]  ? trace_hardirqs_off+0xb8/0x310
[  648.868384]  ? smpboot_thread_fn+0x68b/0xa00
[  648.872796]  ? trace_hardirqs_on+0x310/0x310
[  648.877200]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  648.882734]  ? check_preemption_disabled+0x48/0x280
[  648.887773]  ? takeover_tasklets+0xa90/0xa90
[  648.892179]  run_ksoftirqd+0x5e/0x100
[  648.895976]  smpboot_thread_fn+0x68b/0xa00
[  648.900212]  ? sort_range+0x30/0x30
[  648.903854]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  648.908956]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  648.914496]  ? __kthread_parkme+0xfb/0x1a0
[  648.918736]  ? sort_range+0x30/0x30
[  648.922416]  kthread+0x35a/0x440
[  648.925785]  ? kthread_stop+0x900/0x900
[  648.929771]  ret_from_fork+0x3a/0x50
[  648.933519] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  648.933603] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  648.940539] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  648.940545] Call Trace:
[  648.940551]  <IRQ>
[  648.940570]  dump_stack+0x244/0x39d
[  648.940604]  ? dump_stack_print_info.cold.1+0x20/0x20
[  648.947215] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  648.956519]  warn_alloc.cold.116+0xb7/0x1bd
[  648.959071] ksoftirqd/0 cpuset=/ mems_allowed=0
[  648.961218]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  648.994075]  ? lock_downgrade+0x900/0x900
[  648.998258]  ? trace_hardirqs_off+0xb8/0x310
[  649.002681]  ? trace_hardirqs_off+0xb8/0x310
[  649.007098]  __alloc_pages_slowpath+0x2651/0x2de0
[  649.011979]  ? warn_alloc+0x120/0x120
[  649.015813]  ? warn_alloc+0x120/0x120
[  649.019620]  ? warn_alloc+0x120/0x120
[  649.023422]  ? print_usage_bug+0xc0/0xc0
[  649.027485]  ? print_usage_bug+0xc0/0xc0
[  649.031545]  ? ktime_get+0x2c1/0x400
[  649.035289]  ? check_preemption_disabled+0x48/0x280
[  649.040302]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  649.044815]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  649.050347]  ? should_fail+0x22d/0xd01
[  649.054245]  ? kasan_check_read+0x11/0x20
[  649.058413]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  649.063515]  ? __lock_acquire+0x62f/0x4c20
[  649.067779]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  649.072881]  ? should_fail+0x22d/0xd01
[  649.076801]  ? print_usage_bug+0xc0/0xc0
[  649.080877]  ? mark_held_locks+0x130/0x130
[  649.085118]  ? mark_held_locks+0x130/0x130
[  649.089351]  ? check_preemption_disabled+0x48/0x280
[  649.094373]  ? zap_class+0x640/0x640
[  649.098093]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  649.102870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  649.108409]  ? check_preemption_disabled+0x48/0x280
[  649.113463]  ? __lock_is_held+0xb5/0x140
[  649.117533]  __alloc_pages_nodemask+0xad8/0xea0
[  649.122202]  ? zap_class+0x640/0x640
[  649.125919]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  649.130945]  ? find_held_lock+0x36/0x1c0
[  649.135018]  ? ____cache_alloc_node+0x1c7/0x1e0
[  649.139690]  ? lock_downgrade+0x900/0x900
[  649.143843]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  649.149379]  cache_grow_begin+0xa5/0x8c0
[  649.153436]  ? do_raw_spin_unlock+0xa7/0x330
[  649.157848]  fallback_alloc+0x204/0x2e0
[  649.161861]  ____cache_alloc_node+0x1c7/0x1e0
[  649.166362]  kmem_cache_alloc_node+0xe3/0x730
[  649.170857]  ? lockdep_hardirqs_on+0x296/0x5b0
[  649.175451]  __alloc_skb+0x119/0x770
[  649.179162]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  649.184528]  ? netdev_alloc_frag+0x1f0/0x1f0
[  649.188964]  ? vprintk_default+0x28/0x30
[  649.193028]  ? vprintk_func+0x85/0x181
[  649.196921]  ? printk+0xa7/0xcf
[  649.200199]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  649.204965]  new_skb+0x26/0x1c0
[  649.208249]  aoecmd_cfg+0x279/0x7f0
[  649.211883]  ? find_held_lock+0x36/0x1c0
[  649.215946]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  649.220279]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  649.225824]  ? __lock_is_held+0xb5/0x140
[  649.229895]  discover_timer+0x50/0x60
[  649.233696]  call_timer_fn+0x272/0x920
[  649.237581]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  649.242421]  ? process_timeout+0x40/0x40
[  649.246494]  ? mark_held_locks+0xc7/0x130
[  649.250644]  ? _raw_spin_unlock_irq+0x27/0x80
[  649.255139]  ? _raw_spin_unlock_irq+0x27/0x80
[  649.259631]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  649.264474]  ? lockdep_hardirqs_on+0x296/0x5b0
[  649.269061]  ? trace_hardirqs_on+0xbd/0x310
[  649.273381]  ? kasan_check_read+0x11/0x20
[  649.277526]  ? __run_timers+0x7da/0xc70
[  649.281507]  ? trace_hardirqs_off_caller+0x310/0x310
[  649.286624]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  649.291463]  __run_timers+0x7e5/0xc70
[  649.295281]  ? timer_fixup_init+0x70/0x70
[  649.299433]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  649.304452]  ? zap_class+0x640/0x640
[  649.308168]  ? print_usage_bug+0xc0/0xc0
[  649.312234]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  649.317433]  ? find_held_lock+0x36/0x1c0
[  649.321501]  ? zap_class+0x640/0x640
[  649.325250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  649.330821]  ? check_preemption_disabled+0x48/0x280
[  649.335846]  ? __lock_is_held+0xb5/0x140
[  649.339912]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  649.345454]  ? check_preemption_disabled+0x48/0x280
[  649.350473]  run_timer_softirq+0x52/0xb0
[  649.354535]  ? rcu_read_lock_sched_held+0x14f/0x180
[  649.359553]  __do_softirq+0x308/0xb7e
[  649.363357]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  649.367852]  ? lock_downgrade+0x900/0x900
[  649.372009]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  649.377121]  ? pvclock_read_flags+0x160/0x160
[  649.381618]  ? lapic_next_event+0x5a/0x90
[  649.385770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  649.391332]  ? kvm_clock_read+0x18/0x30
[  649.395309]  ? kvm_sched_clock_read+0x9/0x20
[  649.399721]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  649.405281]  ? check_preemption_disabled+0x48/0x280
[  649.410317]  irq_exit+0x17f/0x1c0
[  649.413778]  smp_apic_timer_interrupt+0x1cb/0x760
[  649.418624]  ? smp_reschedule_interrupt+0x109/0x650
[  649.423660]  ? smp_call_function_single_interrupt+0x650/0x650
[  649.429552]  ? interrupt_entry+0xb5/0xc0
[  649.433615]  ? trace_hardirqs_off_caller+0xbb/0x310
[  649.438630]  ? trace_hardirqs_off_caller+0xbb/0x310
[  649.443659]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  649.448501]  ? trace_hardirqs_on_caller+0x310/0x310
[  649.453517]  ? trace_hardirqs_on_caller+0x310/0x310
[  649.458559]  ? task_prio+0x50/0x50
[  649.462117]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  649.467653]  ? check_preemption_disabled+0x48/0x280
[  649.472674]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  649.477525]  apic_timer_interrupt+0xf/0x20
[  649.481759]  </IRQ>
[  649.483999] RIP: 0010:dump_stack+0x358/0x39d
[  649.488412] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  649.507340] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  649.515044] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  649.522321] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  649.529587] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  649.536854] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  649.544125] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  649.551411]  ? dump_stack+0x34f/0x39d
[  649.555236]  ? dump_stack_print_info.cold.1+0x20/0x20
[  649.560442]  ? mark_held_locks+0x130/0x130
[  649.564675]  ? mark_held_locks+0x130/0x130
[  649.568911]  dump_header+0x27b/0xf72
[  649.572634]  ? pagefault_out_of_memory+0x197/0x197
[  649.577569]  ? __lock_acquire+0x62f/0x4c20
[  649.581804]  ? percpu_ref_get_many+0x240/0x240
[  649.586395]  ? print_usage_bug+0xc0/0xc0
[  649.590479]  ? zap_class+0x640/0x640
[  649.594196]  ? print_usage_bug+0xc0/0xc0
[  649.598253]  ? print_usage_bug+0xc0/0xc0
[  649.602318]  ? zap_class+0x640/0x640
[  649.606032]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  649.611588]  ? find_held_lock+0x36/0x1c0
[  649.615653]  ? mark_held_locks+0xc7/0x130
[  649.619801]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  649.624913]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  649.630015]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  649.634612]  ? trace_hardirqs_on+0xbd/0x310
[  649.638941]  ? kasan_check_read+0x11/0x20
[  649.643083]  ? ___ratelimit+0x3b4/0x672
[  649.647053]  ? trace_hardirqs_off_caller+0x310/0x310
[  649.652155]  ? trace_hardirqs_on+0x310/0x310
[  649.656562]  ? lock_downgrade+0x900/0x900
[  649.660716]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  649.665842]  ? ___ratelimit+0x3b9/0x672
[  649.669821]  ? idr_get_free+0xf70/0xf70
[  649.673813]  ? find_held_lock+0x36/0x1c0
[  649.677885]  oom_kill_process.cold.27+0x10/0x903
[  649.682639]  ? zap_class+0x640/0x640
[  649.686351]  ? check_preemption_disabled+0x48/0x280
[  649.691371]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  649.696294]  ? kasan_check_read+0x11/0x20
[  649.700435]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  649.705710]  ? oom_evaluate_task+0x540/0x540
[  649.710123]  ? find_held_lock+0x36/0x1c0
[  649.714192]  ? out_of_memory+0x974/0x1430
[  649.718340]  ? lock_downgrade+0x900/0x900
[  649.722513]  ? check_preemption_disabled+0x48/0x280
[  649.727533]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  649.732457]  ? kasan_check_read+0x11/0x20
[  649.736613]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  649.741901]  ? rcu_softirq_qs+0x20/0x20
[  649.745892]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  649.751424]  ? oom_evaluate_task+0x302/0x540
[  649.755850]  out_of_memory+0xa84/0x1430
[  649.759836]  ? oom_killer_disable+0x3a0/0x3a0
[  649.764343]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  649.769282]  ? __ww_mutex_check_waiters+0x160/0x160
[  649.774310]  __alloc_pages_slowpath+0x232c/0x2de0
[  649.779180]  ? warn_alloc+0x120/0x120
[  649.782977]  ? mark_held_locks+0x130/0x130
[  649.787217]  ? find_get_entry+0xaae/0x1120
[  649.791459]  ? filemap_map_pages+0x1a20/0x1a20
[  649.796048]  ? zap_class+0x640/0x640
[  649.799771]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  649.805313]  ? check_preemption_disabled+0x48/0x280
[  649.810329]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  649.815869]  ? should_fail+0x22d/0xd01
[  649.819783]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  649.824888]  ? zap_class+0x640/0x640
[  649.828627]  ? __lock_is_held+0xb5/0x140
[  649.832697]  ? mark_held_locks+0x130/0x130
[  649.836953]  ? lock_release+0xa00/0xa00
[  649.840956]  ? perf_trace_sched_process_exec+0x860/0x860
[  649.846422]  ? xa_load+0x2ba/0x460
[  649.849960]  ? lock_downgrade+0x900/0x900
[  649.854110]  ? __might_sleep+0x95/0x190
[  649.858091]  __alloc_pages_nodemask+0xad8/0xea0
[  649.862771]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  649.867788]  ? __page_cache_alloc+0x191/0x5c0
[  649.872283]  ? xa_load+0x2e1/0x460
[  649.875821]  ? xa_clear_mark+0x40/0x40
[  649.879707]  ? zap_class+0x640/0x640
[  649.883447]  ? zap_class+0x640/0x640
[  649.887171]  ? zap_class+0x640/0x640
[  649.890905]  ? __do_page_cache_readahead+0x663/0x810
[  649.896014]  ? find_held_lock+0x36/0x1c0
[  649.900081]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  649.905625]  alloc_pages_current+0x173/0x350
[  649.910041]  __page_cache_alloc+0x38c/0x5c0
[  649.914363]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  649.919290]  ? kasan_check_read+0x11/0x20
[  649.923433]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  649.928711]  ? generic_perform_write+0x6a0/0x6a0
[  649.933474]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  649.939008]  ? check_preemption_disabled+0x48/0x280
[  649.944032]  filemap_fault+0x1595/0x25f0
[  649.948107]  ? __lock_page_or_retry+0xa00/0xa00
[  649.952807]  ? mark_held_locks+0x130/0x130
[  649.957047]  ? filemap_map_pages+0xd6b/0x1a20
[  649.961538]  ? lock_downgrade+0x900/0x900
[  649.965682]  ? check_preemption_disabled+0x48/0x280
[  649.970698]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  649.975635]  ? kasan_check_read+0x11/0x20
[  649.979784]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  649.985074]  ? rcu_softirq_qs+0x20/0x20
[  649.989059]  ? filemap_map_pages+0xd92/0x1a20
[  649.993572]  ? print_usage_bug+0xc0/0xc0
[  649.997653]  ? find_get_entries_tag+0x1400/0x1400
[  650.002494]  ? __kasan_slab_free+0x102/0x150
[  650.006902]  ? kasan_slab_free+0xe/0x10
[  650.010888]  ? kmem_cache_free+0x83/0x290
[  650.015036]  ? __sigqueue_free.part.29+0x74/0x90
[  650.019809]  ? lock_acquire+0x1ed/0x520
[  650.023791]  ? ext4_filemap_fault+0x7a/0xad
[  650.028119]  ? lock_release+0xa00/0xa00
[  650.032087]  ? perf_trace_sched_process_exec+0x860/0x860
[  650.037544]  ? print_usage_bug+0xc0/0xc0
[  650.041624]  ? print_usage_bug+0xc0/0xc0
[  650.045697]  ? down_read+0x8d/0x120
[  650.049320]  ? ext4_filemap_fault+0x7a/0xad
[  650.053652]  ? __down_interruptible+0x700/0x700
[  650.058330]  ext4_filemap_fault+0x82/0xad
[  650.062475]  __do_fault+0x100/0x6b0
[  650.066108]  ? pmd_devmap_trans_unstable+0x220/0x220
[  650.071233]  ? mark_held_locks+0x130/0x130
[  650.075471]  ? mark_held_locks+0x130/0x130
[  650.079706]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  650.085248]  ? rcu_pm_notify+0xc0/0xc0
[  650.089159]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  650.094702]  __handle_mm_fault+0x3ea0/0x5be0
[  650.099120]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  650.103964]  ? _raw_spin_unlock_irq+0x27/0x80
[  650.108458]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  650.113047]  ? trace_hardirqs_on+0xbd/0x310
[  650.117366]  ? kasan_check_read+0x11/0x20
[  650.121535]  ? __set_current_blocked+0xdf/0x120
[  650.126208]  ? trace_hardirqs_off_caller+0x310/0x310
[  650.131363]  ? zap_class+0x640/0x640
[  650.135078]  ? zap_class+0x640/0x640
[  650.138801]  ? find_held_lock+0x36/0x1c0
[  650.142872]  ? handle_mm_fault+0x42a/0xc70
[  650.147112]  ? lock_downgrade+0x900/0x900
[  650.151267]  ? check_preemption_disabled+0x48/0x280
[  650.156287]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  650.161219]  ? kasan_check_read+0x11/0x20
[  650.165365]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  650.170638]  ? rcu_softirq_qs+0x20/0x20
[  650.174627]  ? trace_hardirqs_off_caller+0x310/0x310
[  650.179728]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  650.185283]  ? check_preemption_disabled+0x48/0x280
[  650.190306]  handle_mm_fault+0x54f/0xc70
[  650.194387]  ? __handle_mm_fault+0x5be0/0x5be0
[  650.198971]  ? find_vma+0x34/0x190
[  650.202531]  __do_page_fault+0x5e8/0xe60
[  650.206591]  ? exit_to_usermode_loop+0x1f4/0x380
[  650.211367]  do_page_fault+0xf2/0x7e0
[  650.215168]  ? vmalloc_sync_all+0x30/0x30
[  650.219313]  ? error_entry+0x70/0xd0
[  650.223038]  ? trace_hardirqs_off_caller+0xbb/0x310
[  650.228048]  ? trace_hardirqs_on_caller+0xc0/0x310
[  650.232976]  ? syscall_return_slowpath+0x5e0/0x5e0
[  650.237900]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  650.242751]  ? trace_hardirqs_on_caller+0x310/0x310
[  650.247778]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  650.253232]  ? prepare_exit_to_usermode+0x291/0x3b0
[  650.258253]  ? page_fault+0x8/0x30
[  650.261818]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  650.266667]  ? page_fault+0x8/0x30
[  650.270208]  page_fault+0x1e/0x30
[  650.273655] RIP: 0033:0x45db60
[  650.276860] Code: Bad RIP value.
[  650.280221] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  650.285581] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  650.292844] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  650.300107] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  650.307371] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  650.314636] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  650.321938] warn_alloc_show_mem: 1 callbacks suppressed
[  650.321949] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  650.321951] Mem-Info:
[  650.321983] active_anon:42936 inactive_anon:306 isolated_anon:0
[  650.321983]  active_file:13 inactive_file:13 isolated_file:0
[  650.321983]  unevictable:0 dirty:0 writeback:0 unstable:0
[  650.321983]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  650.321983]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  650.321983]  free:13785 free_pcp:492 free_cma:0
[  650.327310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  650.327318] Call Trace:
[  650.334162] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  650.336567]  dump_stack+0x244/0x39d
[  650.369331] 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
[  650.378680]  ? dump_stack_print_info.cold.1+0x20/0x20
[  650.381234] lowmem_reserve[]: 0 2818 6321 6321
[  650.408821]  warn_alloc.cold.116+0xb7/0x1bd
[  650.412411] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  650.438510]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  650.443672] lowmem_reserve[]: 0 0 3503 3503
[  650.448246]  ? lock_downgrade+0x900/0x900
[  650.452544] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  650.479692]  ? trace_hardirqs_off+0xb8/0x310
[  650.484539] lowmem_reserve[]: 0 0 0 0
[  650.488854]  ? trace_hardirqs_off+0xb8/0x310
[  650.492975] 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
[  650.522135]  __alloc_pages_slowpath+0x2651/0x2de0
[  650.526529] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  650.530362]  ? warn_alloc+0x120/0x120
[  650.534722] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  650.548246]  ? print_usage_bug+0xc0/0xc0
[  650.553066] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  650.568678]  ? warn_alloc+0x120/0x120
[  650.572470] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  650.587625]  ? warn_alloc+0x120/0x120
[  650.591662] 380 total pagecache pages
[  650.600489]  ? print_usage_bug+0xc0/0xc0
[  650.604275] 0 pages in swap cache
[  650.612843]  ? print_usage_bug+0xc0/0xc0
[  650.616624] Swap cache stats: add 0, delete 0, find 0/0
[  650.620428]  ? __lock_acquire+0x62f/0x4c20
[  650.624464] Free swap  = 0kB
[  650.627912]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  650.631944] Total swap = 0kB
[  650.637301]  ? should_fail+0x22d/0xd01
[  650.641505] 1965979 pages RAM
[  650.644513]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  650.650021] 0 pages HighMem/MovableOnly
[  650.653028]  ? __lock_acquire+0x62f/0x4c20
[  650.656894] 342854 pages reserved
[  650.659989]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  650.665068] 0 pages cma reserved
[  650.669035]  ? __lock_acquire+0x62f/0x4c20
[  650.673322] aoe: skb alloc failure
[  650.676698]  ? should_fail+0x22d/0xd01
[  650.676714]  ? find_held_lock+0x36/0x1c0
[  650.681910] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  650.685204]  ? mark_held_locks+0x130/0x130
[  650.685215]  ? mark_held_locks+0x130/0x130
[  650.685222]  ? zap_class+0x640/0x640
[  650.685230]  ? zap_class+0x640/0x640
[  650.685240]  ? print_usage_bug+0xc0/0xc0
[  650.685247]  ? do_raw_spin_unlock+0xa7/0x330
[  650.685255]  ? zap_class+0x640/0x640
[  650.685264]  ? print_usage_bug+0xc0/0xc0
[  650.685277]  ? wq_watchdog_touch+0x9c/0xfe
[  650.685296]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  650.689509] syz-fuzzer cpuset=/ mems_allowed=0
[  650.693045]  ? check_preemption_disabled+0x48/0x280
[  650.762464]  ? __lock_is_held+0xb5/0x140
[  650.766545]  __alloc_pages_nodemask+0xad8/0xea0
[  650.771211]  ? zap_class+0x640/0x640
[  650.774935]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  650.779961]  ? find_held_lock+0x36/0x1c0
[  650.784048]  ? ____cache_alloc_node+0x1c7/0x1e0
[  650.788755]  ? lock_downgrade+0x900/0x900
[  650.792917]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  650.798461]  cache_grow_begin+0xa5/0x8c0
[  650.802520]  ? do_raw_spin_unlock+0xa7/0x330
[  650.806937]  fallback_alloc+0x204/0x2e0
[  650.810918]  ____cache_alloc_node+0x1c7/0x1e0
[  650.815418]  kmem_cache_alloc_node+0xe3/0x730
[  650.819917]  ? ipv6_get_ifaddr+0x42e/0x620
[  650.824163]  __alloc_skb+0x119/0x770
[  650.827874]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  650.833154]  ? netdev_alloc_frag+0x1f0/0x1f0
[  650.837577]  ? lock_downgrade+0x900/0x900
[  650.841729]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  650.847276]  ? refcount_sub_and_test_checked+0x203/0x310
[  650.852733]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  650.858195]  ? addrconf_rs_timer+0x690/0x690
[  650.862615]  ndisc_alloc_skb+0x144/0x340
[  650.866679]  ndisc_send_rs+0x331/0x6e0
[  650.870571]  addrconf_rs_timer+0x314/0x690
[  650.874833]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  650.879077]  call_timer_fn+0x272/0x920
[  650.882961]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  650.887208]  ? process_timeout+0x40/0x40
[  650.891294]  ? __run_timers+0x7da/0xc70
[  650.895283]  ? _raw_spin_unlock_irq+0x27/0x80
[  650.899782]  ? _raw_spin_unlock_irq+0x27/0x80
[  650.904273]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  650.908521]  ? lockdep_hardirqs_on+0x296/0x5b0
[  650.913106]  ? trace_hardirqs_on+0xbd/0x310
[  650.917421]  ? kasan_check_read+0x11/0x20
[  650.921561]  ? __run_timers+0x7da/0xc70
[  650.925532]  ? trace_hardirqs_off_caller+0x310/0x310
[  650.930640]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  650.934897]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  650.939159]  __run_timers+0x7e5/0xc70
[  650.942965]  ? timer_fixup_init+0x70/0x70
[  650.947112]  ? _raw_spin_unlock_irq+0x27/0x80
[  650.951605]  ? _raw_spin_unlock_irq+0x27/0x80
[  650.956099]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  650.960679]  ? trace_hardirqs_on+0xbd/0x310
[  650.965016]  ? kasan_check_read+0x11/0x20
[  650.969181]  ? finish_task_switch+0x1f4/0x910
[  650.973699]  ? trace_hardirqs_off_caller+0x310/0x310
[  650.978838]  ? compat_start_thread+0x80/0x80
[  650.983265]  ? pvclock_read_flags+0x160/0x160
[  650.987766]  ? __switch_to_asm+0x34/0x70
[  650.991827]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  650.997361]  ? check_preemption_disabled+0x48/0x280
[  651.002383]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  651.007923]  ? rcu_pm_notify+0xc0/0xc0
[  651.011816]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.017356]  ? check_preemption_disabled+0x48/0x280
[  651.022376]  run_timer_softirq+0x52/0xb0
[  651.026432]  ? rcu_read_lock_sched_held+0x14f/0x180
[  651.031444]  __do_softirq+0x308/0xb7e
[  651.035246]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  651.040004]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  651.045105]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  651.050553]  ? trace_hardirqs_on+0x310/0x310
[  651.054967]  ? schedule+0x108/0x460
[  651.058621]  ? trace_hardirqs_off+0xb8/0x310
[  651.063031]  ? smpboot_thread_fn+0x68b/0xa00
[  651.067439]  ? trace_hardirqs_on+0x310/0x310
[  651.071870]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  651.077427]  ? check_preemption_disabled+0x48/0x280
[  651.082441]  ? takeover_tasklets+0xa90/0xa90
[  651.086849]  run_ksoftirqd+0x5e/0x100
[  651.090646]  smpboot_thread_fn+0x68b/0xa00
[  651.094900]  ? sort_range+0x30/0x30
[  651.098525]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  651.103624]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  651.109160]  ? __kthread_parkme+0xfb/0x1a0
[  651.113398]  ? sort_range+0x30/0x30
[  651.117025]  kthread+0x35a/0x440
[  651.120392]  ? kthread_stop+0x900/0x900
[  651.124370]  ret_from_fork+0x3a/0x50
[  651.128102] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  651.128185] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  651.135152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  651.135157] Call Trace:
[  651.135164]  <IRQ>
[  651.135182]  dump_stack+0x244/0x39d
[  651.135200]  ? dump_stack_print_info.cold.1+0x20/0x20
[  651.141770] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  651.151026]  warn_alloc.cold.116+0xb7/0x1bd
[  651.153580] ksoftirqd/0 cpuset=/ mems_allowed=0
[  651.155726]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  651.188649]  ? lock_downgrade+0x900/0x900
[  651.192803]  ? trace_hardirqs_off+0xb8/0x310
[  651.197215]  ? trace_hardirqs_off+0xb8/0x310
[  651.201627]  __alloc_pages_slowpath+0x2651/0x2de0
[  651.206497]  ? warn_alloc+0x120/0x120
[  651.210304]  ? warn_alloc+0x120/0x120
[  651.214111]  ? warn_alloc+0x120/0x120
[  651.217916]  ? print_usage_bug+0xc0/0xc0
[  651.221977]  ? print_usage_bug+0xc0/0xc0
[  651.226063]  ? ktime_get+0x2c1/0x400
[  651.229784]  ? check_preemption_disabled+0x48/0x280
[  651.234799]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  651.239294]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  651.244833]  ? should_fail+0x22d/0xd01
[  651.248725]  ? kasan_check_read+0x11/0x20
[  651.252887]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  651.257993]  ? __lock_acquire+0x62f/0x4c20
[  651.262233]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  651.267336]  ? should_fail+0x22d/0xd01
[  651.271221]  ? print_usage_bug+0xc0/0xc0
[  651.275299]  ? mark_held_locks+0x130/0x130
[  651.279537]  ? mark_held_locks+0x130/0x130
[  651.283775]  ? check_preemption_disabled+0x48/0x280
[  651.288808]  ? zap_class+0x640/0x640
[  651.292538]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  651.297300]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.302840]  ? check_preemption_disabled+0x48/0x280
[  651.307865]  ? __lock_is_held+0xb5/0x140
[  651.311933]  __alloc_pages_nodemask+0xad8/0xea0
[  651.316604]  ? zap_class+0x640/0x640
[  651.320367]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  651.325393]  ? find_held_lock+0x36/0x1c0
[  651.329481]  ? ____cache_alloc_node+0x1c7/0x1e0
[  651.334168]  ? lock_downgrade+0x900/0x900
[  651.338342]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.343886]  cache_grow_begin+0xa5/0x8c0
[  651.347946]  ? do_raw_spin_unlock+0xa7/0x330
[  651.352391]  fallback_alloc+0x204/0x2e0
[  651.356388]  ____cache_alloc_node+0x1c7/0x1e0
[  651.360889]  kmem_cache_alloc_node+0xe3/0x730
[  651.365387]  ? lockdep_hardirqs_on+0x296/0x5b0
[  651.369982]  __alloc_skb+0x119/0x770
[  651.373696]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  651.379067]  ? netdev_alloc_frag+0x1f0/0x1f0
[  651.383481]  ? vprintk_default+0x28/0x30
[  651.387555]  ? vprintk_func+0x85/0x181
[  651.391441]  ? printk+0xa7/0xcf
[  651.394722]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  651.399505]  new_skb+0x26/0x1c0
[  651.402788]  aoecmd_cfg+0x279/0x7f0
[  651.406413]  ? find_held_lock+0x36/0x1c0
[  651.410488]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  651.414814]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.420361]  ? __lock_is_held+0xb5/0x140
[  651.424434]  discover_timer+0x50/0x60
[  651.428232]  call_timer_fn+0x272/0x920
[  651.432139]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  651.436992]  ? process_timeout+0x40/0x40
[  651.441064]  ? mark_held_locks+0xc7/0x130
[  651.445213]  ? _raw_spin_unlock_irq+0x27/0x80
[  651.449708]  ? _raw_spin_unlock_irq+0x27/0x80
[  651.454236]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  651.459082]  ? lockdep_hardirqs_on+0x296/0x5b0
[  651.463664]  ? trace_hardirqs_on+0xbd/0x310
[  651.467996]  ? kasan_check_read+0x11/0x20
[  651.472161]  ? __run_timers+0x7da/0xc70
[  651.476134]  ? trace_hardirqs_off_caller+0x310/0x310
[  651.481250]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  651.486097]  __run_timers+0x7e5/0xc70
[  651.489907]  ? timer_fixup_init+0x70/0x70
[  651.494055]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  651.499074]  ? zap_class+0x640/0x640
[  651.502808]  ? print_usage_bug+0xc0/0xc0
[  651.506891]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  651.512106]  ? find_held_lock+0x36/0x1c0
[  651.516172]  ? zap_class+0x640/0x640
[  651.519892]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.525427]  ? check_preemption_disabled+0x48/0x280
[  651.530449]  ? __lock_is_held+0xb5/0x140
[  651.534528]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.540086]  ? check_preemption_disabled+0x48/0x280
[  651.545121]  run_timer_softirq+0x52/0xb0
[  651.549182]  ? rcu_read_lock_sched_held+0x14f/0x180
[  651.554197]  __do_softirq+0x308/0xb7e
[  651.558001]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  651.562491]  ? lock_downgrade+0x900/0x900
[  651.566641]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  651.571771]  ? pvclock_read_flags+0x160/0x160
[  651.576275]  ? lapic_next_event+0x5a/0x90
[  651.580424]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.585963]  ? kvm_clock_read+0x18/0x30
[  651.589936]  ? kvm_sched_clock_read+0x9/0x20
[  651.594346]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  651.599877]  ? check_preemption_disabled+0x48/0x280
[  651.604914]  irq_exit+0x17f/0x1c0
[  651.608384]  smp_apic_timer_interrupt+0x1cb/0x760
[  651.613226]  ? smp_reschedule_interrupt+0x109/0x650
[  651.618246]  ? smp_call_function_single_interrupt+0x650/0x650
[  651.624133]  ? interrupt_entry+0xb5/0xc0
[  651.628194]  ? trace_hardirqs_off_caller+0xbb/0x310
[  651.633212]  ? trace_hardirqs_off_caller+0xbb/0x310
[  651.638228]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  651.643068]  ? trace_hardirqs_on_caller+0x310/0x310
[  651.648081]  ? trace_hardirqs_on_caller+0x310/0x310
[  651.653097]  ? task_prio+0x50/0x50
[  651.656641]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  651.662182]  ? check_preemption_disabled+0x48/0x280
[  651.667202]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  651.672052]  apic_timer_interrupt+0xf/0x20
[  651.676281]  </IRQ>
[  651.678523] RIP: 0010:dump_stack+0x358/0x39d
[  651.682935] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  651.701835] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  651.709553] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  651.716833] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  651.724114] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  651.731380] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  651.738641] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  651.745924]  ? dump_stack+0x34f/0x39d
[  651.749736]  ? dump_stack_print_info.cold.1+0x20/0x20
[  651.754937]  ? mark_held_locks+0x130/0x130
[  651.759170]  ? mark_held_locks+0x130/0x130
[  651.763405]  dump_header+0x27b/0xf72
[  651.767126]  ? pagefault_out_of_memory+0x197/0x197
[  651.772077]  ? __lock_acquire+0x62f/0x4c20
[  651.776313]  ? percpu_ref_get_many+0x240/0x240
[  651.780895]  ? print_usage_bug+0xc0/0xc0
[  651.784961]  ? zap_class+0x640/0x640
[  651.788678]  ? print_usage_bug+0xc0/0xc0
[  651.792756]  ? print_usage_bug+0xc0/0xc0
[  651.796818]  ? zap_class+0x640/0x640
[  651.800533]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.806077]  ? find_held_lock+0x36/0x1c0
[  651.810151]  ? mark_held_locks+0xc7/0x130
[  651.814298]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  651.819397]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  651.824501]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  651.829084]  ? trace_hardirqs_on+0xbd/0x310
[  651.833401]  ? kasan_check_read+0x11/0x20
[  651.837547]  ? ___ratelimit+0x3b4/0x672
[  651.841553]  ? trace_hardirqs_off_caller+0x310/0x310
[  651.846666]  ? trace_hardirqs_on+0x310/0x310
[  651.851076]  ? lock_downgrade+0x900/0x900
[  651.855228]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  651.860331]  ? ___ratelimit+0x3b9/0x672
[  651.864315]  ? idr_get_free+0xf70/0xf70
[  651.868300]  ? find_held_lock+0x36/0x1c0
[  651.872384]  oom_kill_process.cold.27+0x10/0x903
[  651.877142]  ? zap_class+0x640/0x640
[  651.880856]  ? check_preemption_disabled+0x48/0x280
[  651.885871]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  651.890801]  ? kasan_check_read+0x11/0x20
[  651.894945]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  651.900221]  ? oom_evaluate_task+0x540/0x540
[  651.904634]  ? find_held_lock+0x36/0x1c0
[  651.908704]  ? out_of_memory+0x974/0x1430
[  651.912860]  ? lock_downgrade+0x900/0x900
[  651.917023]  ? check_preemption_disabled+0x48/0x280
[  651.922038]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  651.926982]  ? kasan_check_read+0x11/0x20
[  651.931128]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  651.936406]  ? rcu_softirq_qs+0x20/0x20
[  651.940394]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  651.945927]  ? oom_evaluate_task+0x302/0x540
[  651.950341]  out_of_memory+0xa84/0x1430
[  651.954336]  ? oom_killer_disable+0x3a0/0x3a0
[  651.958850]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  651.963781]  ? __ww_mutex_check_waiters+0x160/0x160
[  651.968812]  __alloc_pages_slowpath+0x232c/0x2de0
[  651.973688]  ? warn_alloc+0x120/0x120
[  651.977492]  ? mark_held_locks+0x130/0x130
[  651.981731]  ? find_get_entry+0xaae/0x1120
[  651.985989]  ? filemap_map_pages+0x1a20/0x1a20
[  651.990580]  ? zap_class+0x640/0x640
[  651.994296]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  651.999845]  ? check_preemption_disabled+0x48/0x280
[  652.004863]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  652.010426]  ? should_fail+0x22d/0xd01
[  652.014335]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  652.019458]  ? zap_class+0x640/0x640
[  652.023216]  ? __lock_is_held+0xb5/0x140
[  652.027308]  ? mark_held_locks+0x130/0x130
[  652.031541]  ? lock_release+0xa00/0xa00
[  652.035515]  ? perf_trace_sched_process_exec+0x860/0x860
[  652.040966]  ? xa_load+0x2ba/0x460
[  652.044509]  ? lock_downgrade+0x900/0x900
[  652.048663]  ? __might_sleep+0x95/0x190
[  652.052642]  __alloc_pages_nodemask+0xad8/0xea0
[  652.057316]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  652.062345]  ? __page_cache_alloc+0x191/0x5c0
[  652.066851]  ? xa_load+0x2e1/0x460
[  652.070393]  ? xa_clear_mark+0x40/0x40
[  652.074287]  ? zap_class+0x640/0x640
[  652.078025]  ? zap_class+0x640/0x640
[  652.081746]  ? zap_class+0x640/0x640
[  652.085476]  ? __do_page_cache_readahead+0x663/0x810
[  652.090588]  ? find_held_lock+0x36/0x1c0
[  652.094652]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  652.100199]  alloc_pages_current+0x173/0x350
[  652.104615]  __page_cache_alloc+0x38c/0x5c0
[  652.108947]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  652.113878]  ? kasan_check_read+0x11/0x20
[  652.118024]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  652.123301]  ? generic_perform_write+0x6a0/0x6a0
[  652.128054]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  652.133591]  ? check_preemption_disabled+0x48/0x280
[  652.138619]  filemap_fault+0x1595/0x25f0
[  652.142691]  ? __lock_page_or_retry+0xa00/0xa00
[  652.147364]  ? mark_held_locks+0x130/0x130
[  652.151607]  ? filemap_map_pages+0xd6b/0x1a20
[  652.156106]  ? lock_downgrade+0x900/0x900
[  652.160254]  ? check_preemption_disabled+0x48/0x280
[  652.165286]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  652.170216]  ? kasan_check_read+0x11/0x20
[  652.174364]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  652.179646]  ? rcu_softirq_qs+0x20/0x20
[  652.183644]  ? filemap_map_pages+0xd92/0x1a20
[  652.188145]  ? print_usage_bug+0xc0/0xc0
[  652.192225]  ? find_get_entries_tag+0x1400/0x1400
[  652.197181]  ? __kasan_slab_free+0x102/0x150
[  652.201591]  ? kasan_slab_free+0xe/0x10
[  652.205579]  ? kmem_cache_free+0x83/0x290
[  652.209763]  ? __sigqueue_free.part.29+0x74/0x90
[  652.214552]  ? lock_acquire+0x1ed/0x520
[  652.218523]  ? ext4_filemap_fault+0x7a/0xad
[  652.222851]  ? lock_release+0xa00/0xa00
[  652.226829]  ? perf_trace_sched_process_exec+0x860/0x860
[  652.232295]  ? print_usage_bug+0xc0/0xc0
[  652.236359]  ? print_usage_bug+0xc0/0xc0
[  652.240430]  ? down_read+0x8d/0x120
[  652.244060]  ? ext4_filemap_fault+0x7a/0xad
[  652.248382]  ? __down_interruptible+0x700/0x700
[  652.253064]  ext4_filemap_fault+0x82/0xad
[  652.257213]  __do_fault+0x100/0x6b0
[  652.260846]  ? pmd_devmap_trans_unstable+0x220/0x220
[  652.265956]  ? mark_held_locks+0x130/0x130
[  652.270192]  ? mark_held_locks+0x130/0x130
[  652.274429]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  652.279973]  ? rcu_pm_notify+0xc0/0xc0
[  652.283868]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  652.289412]  __handle_mm_fault+0x3ea0/0x5be0
[  652.293830]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  652.298670]  ? _raw_spin_unlock_irq+0x27/0x80
[  652.303165]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  652.307757]  ? trace_hardirqs_on+0xbd/0x310
[  652.312082]  ? kasan_check_read+0x11/0x20
[  652.316227]  ? __set_current_blocked+0xdf/0x120
[  652.320903]  ? trace_hardirqs_off_caller+0x310/0x310
[  652.326022]  ? zap_class+0x640/0x640
[  652.329732]  ? zap_class+0x640/0x640
[  652.333459]  ? find_held_lock+0x36/0x1c0
[  652.337531]  ? handle_mm_fault+0x42a/0xc70
[  652.341771]  ? lock_downgrade+0x900/0x900
[  652.345924]  ? check_preemption_disabled+0x48/0x280
[  652.350943]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  652.355874]  ? kasan_check_read+0x11/0x20
[  652.360024]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  652.365298]  ? rcu_softirq_qs+0x20/0x20
[  652.369288]  ? trace_hardirqs_off_caller+0x310/0x310
[  652.374419]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  652.379954]  ? check_preemption_disabled+0x48/0x280
[  652.384980]  handle_mm_fault+0x54f/0xc70
[  652.389049]  ? __handle_mm_fault+0x5be0/0x5be0
[  652.393638]  ? find_vma+0x34/0x190
[  652.397188]  __do_page_fault+0x5e8/0xe60
[  652.401253]  ? exit_to_usermode_loop+0x1f4/0x380
[  652.406022]  do_page_fault+0xf2/0x7e0
[  652.409823]  ? vmalloc_sync_all+0x30/0x30
[  652.413971]  ? error_entry+0x70/0xd0
[  652.417686]  ? trace_hardirqs_off_caller+0xbb/0x310
[  652.422706]  ? trace_hardirqs_on_caller+0xc0/0x310
[  652.427639]  ? syscall_return_slowpath+0x5e0/0x5e0
[  652.432566]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  652.437407]  ? trace_hardirqs_on_caller+0x310/0x310
[  652.442436]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  652.447888]  ? prepare_exit_to_usermode+0x291/0x3b0
[  652.452905]  ? page_fault+0x8/0x30
[  652.456453]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  652.461319]  ? page_fault+0x8/0x30
[  652.464860]  page_fault+0x1e/0x30
[  652.468316] RIP: 0033:0x45db60
[  652.471524] Code: Bad RIP value.
[  652.474883] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  652.480241] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  652.487506] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  652.494772] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  652.502040] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  652.509302] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  652.516600] warn_alloc_show_mem: 1 callbacks suppressed
[  652.516611] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  652.516613] Mem-Info:
[  652.516644] active_anon:42936 inactive_anon:306 isolated_anon:0
[  652.516644]  active_file:13 inactive_file:13 isolated_file:0
[  652.516644]  unevictable:0 dirty:0 writeback:0 unstable:0
[  652.516644]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  652.516644]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  652.516644]  free:13785 free_pcp:492 free_cma:0
[  652.521982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  652.528838] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  652.531232] Call Trace:
[  652.564009] 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
[  652.573384]  dump_stack+0x244/0x39d
[  652.600939] lowmem_reserve[]: 0 2818 6321 6321
[  652.603517]  ? dump_stack_print_info.cold.1+0x20/0x20
[  652.629600] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  652.633230]  warn_alloc.cold.116+0xb7/0x1bd
[  652.637772] lowmem_reserve[]: 0 0 3503 3503
[  652.642958]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  652.670081] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  652.674395]  ? lock_downgrade+0x900/0x900
[  652.678684] lowmem_reserve[]: 0 0 0 0
[  652.683523]  ? trace_hardirqs_off+0xb8/0x310
[  652.713115] 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
[  652.717262]  ? trace_hardirqs_off+0xb8/0x310
[  652.721037] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  652.725440]  __alloc_pages_slowpath+0x2651/0x2de0
[  652.738929] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  652.743352]  ? warn_alloc+0x120/0x120
[  652.758495] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  652.763322]  ? print_usage_bug+0xc0/0xc0
[  652.778475] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  652.782262]  ? warn_alloc+0x120/0x120
[  652.791076] 380 total pagecache pages
[  652.795130]  ? warn_alloc+0x120/0x120
[  652.803682] 0 pages in swap cache
[  652.807482]  ? print_usage_bug+0xc0/0xc0
[  652.811257] Swap cache stats: add 0, delete 0, find 0/0
[  652.815048]  ? print_usage_bug+0xc0/0xc0
[  652.818479] Free swap  = 0kB
[  652.822562]  ? __lock_acquire+0x62f/0x4c20
[  652.827915] Total swap = 0kB
[  652.831967]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  652.834959] 1965979 pages RAM
[  652.839215]  ? should_fail+0x22d/0xd01
[  652.842202] 0 pages HighMem/MovableOnly
[  652.847728]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  652.850832] 342854 pages reserved
[  652.854714]  ? __lock_acquire+0x62f/0x4c20
[  652.858659] 0 pages cma reserved
[  652.863769]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  652.867268] aoe: skb alloc failure
[  652.871424]  ? __lock_acquire+0x62f/0x4c20
[  652.871437]  ? should_fail+0x22d/0xd01
[  652.871451]  ? find_held_lock+0x36/0x1c0
[  652.871472]  ? mark_held_locks+0x130/0x130
[  652.874844] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  652.879914]  ? mark_held_locks+0x130/0x130
[  652.883424] syz-fuzzer cpuset=/ mems_allowed=0
[  652.887658]  ? zap_class+0x640/0x640
[  652.922501]  ? mark_held_locks+0xc7/0x130
[  652.926645]  ? do_raw_spin_unlock+0xa7/0x330
[  652.931050]  ? zap_class+0x640/0x640
[  652.934775]  ? print_usage_bug+0xc0/0xc0
[  652.938842]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  652.944383]  ? check_preemption_disabled+0x48/0x280
[  652.949426]  ? __lock_is_held+0xb5/0x140
[  652.953490]  __alloc_pages_nodemask+0xad8/0xea0
[  652.958155]  ? zap_class+0x640/0x640
[  652.961872]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  652.966900]  ? find_held_lock+0x36/0x1c0
[  652.970974]  ? ____cache_alloc_node+0x1c7/0x1e0
[  652.975646]  ? lock_downgrade+0x900/0x900
[  652.979805]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  652.985346]  cache_grow_begin+0xa5/0x8c0
[  652.989404]  ? do_raw_spin_unlock+0xa7/0x330
[  652.993823]  fallback_alloc+0x204/0x2e0
[  652.997800]  ____cache_alloc_node+0x1c7/0x1e0
[  653.002319]  kmem_cache_alloc_node+0xe3/0x730
[  653.006822]  ? ipv6_get_ifaddr+0x42e/0x620
[  653.011080]  __alloc_skb+0x119/0x770
[  653.014798]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  653.020082]  ? netdev_alloc_frag+0x1f0/0x1f0
[  653.024488]  ? lock_downgrade+0x900/0x900
[  653.028656]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.034193]  ? refcount_sub_and_test_checked+0x203/0x310
[  653.039660]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  653.045111]  ? addrconf_rs_timer+0x690/0x690
[  653.049530]  ndisc_alloc_skb+0x144/0x340
[  653.053594]  ndisc_send_rs+0x331/0x6e0
[  653.057487]  addrconf_rs_timer+0x314/0x690
[  653.061749]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  653.066000]  call_timer_fn+0x272/0x920
[  653.069903]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  653.074153]  ? process_timeout+0x40/0x40
[  653.078224]  ? __run_timers+0x7da/0xc70
[  653.082198]  ? _raw_spin_unlock_irq+0x27/0x80
[  653.086694]  ? _raw_spin_unlock_irq+0x27/0x80
[  653.091184]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  653.095414]  ? lockdep_hardirqs_on+0x296/0x5b0
[  653.099996]  ? trace_hardirqs_on+0xbd/0x310
[  653.104343]  ? kasan_check_read+0x11/0x20
[  653.108490]  ? __run_timers+0x7da/0xc70
[  653.112466]  ? trace_hardirqs_off_caller+0x310/0x310
[  653.117575]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  653.121814]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  653.126048]  __run_timers+0x7e5/0xc70
[  653.129856]  ? timer_fixup_init+0x70/0x70
[  653.134002]  ? _raw_spin_unlock_irq+0x27/0x80
[  653.138492]  ? _raw_spin_unlock_irq+0x27/0x80
[  653.142987]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  653.147568]  ? trace_hardirqs_on+0xbd/0x310
[  653.151890]  ? kasan_check_read+0x11/0x20
[  653.156036]  ? finish_task_switch+0x1f4/0x910
[  653.160530]  ? trace_hardirqs_off_caller+0x310/0x310
[  653.165645]  ? compat_start_thread+0x80/0x80
[  653.170074]  ? pvclock_read_flags+0x160/0x160
[  653.174590]  ? __switch_to_asm+0x34/0x70
[  653.178674]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.184214]  ? check_preemption_disabled+0x48/0x280
[  653.189270]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  653.194805]  ? rcu_pm_notify+0xc0/0xc0
[  653.198705]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.204241]  ? check_preemption_disabled+0x48/0x280
[  653.209277]  run_timer_softirq+0x52/0xb0
[  653.213336]  ? rcu_read_lock_sched_held+0x14f/0x180
[  653.218349]  __do_softirq+0x308/0xb7e
[  653.222156]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  653.226913]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  653.232016]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  653.237476]  ? trace_hardirqs_on+0x310/0x310
[  653.241895]  ? schedule+0x108/0x460
[  653.245555]  ? trace_hardirqs_off+0xb8/0x310
[  653.249966]  ? smpboot_thread_fn+0x68b/0xa00
[  653.254375]  ? trace_hardirqs_on+0x310/0x310
[  653.258788]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  653.264322]  ? check_preemption_disabled+0x48/0x280
[  653.269335]  ? takeover_tasklets+0xa90/0xa90
[  653.273756]  run_ksoftirqd+0x5e/0x100
[  653.277561]  smpboot_thread_fn+0x68b/0xa00
[  653.281801]  ? sort_range+0x30/0x30
[  653.285425]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  653.290556]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  653.296091]  ? __kthread_parkme+0xfb/0x1a0
[  653.300325]  ? sort_range+0x30/0x30
[  653.303968]  kthread+0x35a/0x440
[  653.307339]  ? kthread_stop+0x900/0x900
[  653.311312]  ret_from_fork+0x3a/0x50
[  653.315043] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  653.315105] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  653.322046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  653.322052] Call Trace:
[  653.322058]  <IRQ>
[  653.322076]  dump_stack+0x244/0x39d
[  653.322096]  ? dump_stack_print_info.cold.1+0x20/0x20
[  653.328630] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  653.337920]  warn_alloc.cold.116+0xb7/0x1bd
[  653.340469] ksoftirqd/0 cpuset=/ mems_allowed=0
[  653.342624]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  653.375485]  ? lock_downgrade+0x900/0x900
[  653.379677]  ? trace_hardirqs_off+0xb8/0x310
[  653.384089]  ? trace_hardirqs_off+0xb8/0x310
[  653.388533]  __alloc_pages_slowpath+0x2651/0x2de0
[  653.393402]  ? warn_alloc+0x120/0x120
[  653.397207]  ? warn_alloc+0x120/0x120
[  653.401014]  ? __lock_acquire+0x62f/0x4c20
[  653.405250]  ? warn_alloc+0x120/0x120
[  653.409058]  ? print_usage_bug+0xc0/0xc0
[  653.413134]  ? print_usage_bug+0xc0/0xc0
[  653.417196]  ? mark_held_locks+0x130/0x130
[  653.421439]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  653.426978]  ? should_fail+0x22d/0xd01
[  653.430862]  ? zap_class+0x640/0x640
[  653.434580]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  653.439686]  ? __lock_acquire+0x62f/0x4c20
[  653.443923]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  653.449029]  ? should_fail+0x22d/0xd01
[  653.452932]  ? mark_held_locks+0x130/0x130
[  653.457167]  ? mark_held_locks+0x130/0x130
[  653.461418]  ? lock_downgrade+0x900/0x900
[  653.465566]  ? zap_class+0x640/0x640
[  653.469286]  ? zap_class+0x640/0x640
[  653.473004]  ? zap_class+0x640/0x640
[  653.476714]  ? do_raw_spin_unlock+0xa7/0x330
[  653.481127]  ? trace_hardirqs_on+0x310/0x310
[  653.485537]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.491077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.496616]  ? check_preemption_disabled+0x48/0x280
[  653.501640]  ? __lock_is_held+0xb5/0x140
[  653.505705]  __alloc_pages_nodemask+0xad8/0xea0
[  653.510369]  ? zap_class+0x640/0x640
[  653.514084]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  653.519129]  ? find_held_lock+0x36/0x1c0
[  653.523200]  ? ____cache_alloc_node+0x1c7/0x1e0
[  653.527870]  ? lock_downgrade+0x900/0x900
[  653.532024]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.537562]  cache_grow_begin+0xa5/0x8c0
[  653.541637]  ? do_raw_spin_unlock+0xa7/0x330
[  653.546082]  fallback_alloc+0x204/0x2e0
[  653.550079]  ____cache_alloc_node+0x1c7/0x1e0
[  653.554576]  kmem_cache_alloc_node+0xe3/0x730
[  653.559073]  ? lockdep_hardirqs_on+0x296/0x5b0
[  653.563662]  __alloc_skb+0x119/0x770
[  653.567373]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  653.572747]  ? netdev_alloc_frag+0x1f0/0x1f0
[  653.577162]  ? vprintk_default+0x28/0x30
[  653.581227]  ? vprintk_func+0x85/0x181
[  653.585118]  ? printk+0xa7/0xcf
[  653.588396]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  653.593160]  new_skb+0x26/0x1c0
[  653.596436]  aoecmd_cfg+0x279/0x7f0
[  653.600087]  ? find_held_lock+0x36/0x1c0
[  653.604148]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  653.608489]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.614037]  ? __lock_is_held+0xb5/0x140
[  653.618114]  discover_timer+0x50/0x60
[  653.621929]  call_timer_fn+0x272/0x920
[  653.625821]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  653.630665]  ? process_timeout+0x40/0x40
[  653.634757]  ? mark_held_locks+0xc7/0x130
[  653.638926]  ? _raw_spin_unlock_irq+0x27/0x80
[  653.643418]  ? _raw_spin_unlock_irq+0x27/0x80
[  653.647914]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  653.652762]  ? lockdep_hardirqs_on+0x296/0x5b0
[  653.657363]  ? trace_hardirqs_on+0xbd/0x310
[  653.661686]  ? kasan_check_read+0x11/0x20
[  653.665843]  ? __run_timers+0x7da/0xc70
[  653.669819]  ? trace_hardirqs_off_caller+0x310/0x310
[  653.674946]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  653.679792]  __run_timers+0x7e5/0xc70
[  653.684074]  ? timer_fixup_init+0x70/0x70
[  653.688223]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  653.693238]  ? zap_class+0x640/0x640
[  653.696960]  ? print_usage_bug+0xc0/0xc0
[  653.701038]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  653.706241]  ? find_held_lock+0x36/0x1c0
[  653.710311]  ? zap_class+0x640/0x640
[  653.714049]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.719586]  ? check_preemption_disabled+0x48/0x280
[  653.724612]  ? __lock_is_held+0xb5/0x140
[  653.728674]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.734210]  ? check_preemption_disabled+0x48/0x280
[  653.739228]  run_timer_softirq+0x52/0xb0
[  653.743289]  ? rcu_read_lock_sched_held+0x14f/0x180
[  653.748307]  __do_softirq+0x308/0xb7e
[  653.752114]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  653.756619]  ? lock_downgrade+0x900/0x900
[  653.760779]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  653.765893]  ? pvclock_read_flags+0x160/0x160
[  653.770389]  ? lapic_next_event+0x5a/0x90
[  653.774537]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  653.780079]  ? kvm_clock_read+0x18/0x30
[  653.784053]  ? kvm_sched_clock_read+0x9/0x20
[  653.788462]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  653.794001]  ? check_preemption_disabled+0x48/0x280
[  653.799030]  irq_exit+0x17f/0x1c0
[  653.802485]  smp_apic_timer_interrupt+0x1cb/0x760
[  653.807328]  ? smp_reschedule_interrupt+0x109/0x650
[  653.812361]  ? smp_call_function_single_interrupt+0x650/0x650
[  653.818245]  ? interrupt_entry+0xb5/0xc0
[  653.822309]  ? trace_hardirqs_off_caller+0xbb/0x310
[  653.827324]  ? trace_hardirqs_off_caller+0xbb/0x310
[  653.832337]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  653.837178]  ? trace_hardirqs_on_caller+0x310/0x310
[  653.842190]  ? trace_hardirqs_on_caller+0x310/0x310
[  653.847206]  ? task_prio+0x50/0x50
[  653.850752]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  653.856291]  ? check_preemption_disabled+0x48/0x280
[  653.861312]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  653.866161]  apic_timer_interrupt+0xf/0x20
[  653.870386]  </IRQ>
[  653.872623] RIP: 0010:dump_stack+0x358/0x39d
[  653.877032] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  653.895929] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  653.903637] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  653.910905] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  653.918170] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  653.925434] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  653.932697] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  653.940008]  ? dump_stack+0x34f/0x39d
[  653.943836]  ? dump_stack_print_info.cold.1+0x20/0x20
[  653.949027]  ? mark_held_locks+0x130/0x130
[  653.953258]  ? mark_held_locks+0x130/0x130
[  653.957535]  dump_header+0x27b/0xf72
[  653.961268]  ? pagefault_out_of_memory+0x197/0x197
[  653.966204]  ? __lock_acquire+0x62f/0x4c20
[  653.970453]  ? percpu_ref_get_many+0x240/0x240
[  653.975038]  ? print_usage_bug+0xc0/0xc0
[  653.979110]  ? zap_class+0x640/0x640
[  653.982827]  ? print_usage_bug+0xc0/0xc0
[  653.986890]  ? print_usage_bug+0xc0/0xc0
[  653.990957]  ? zap_class+0x640/0x640
[  653.994677]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  654.000236]  ? find_held_lock+0x36/0x1c0
[  654.004310]  ? mark_held_locks+0xc7/0x130
[  654.008460]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  654.013559]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  654.018663]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  654.023247]  ? trace_hardirqs_on+0xbd/0x310
[  654.027571]  ? kasan_check_read+0x11/0x20
[  654.031719]  ? ___ratelimit+0x3b4/0x672
[  654.035713]  ? trace_hardirqs_off_caller+0x310/0x310
[  654.040855]  ? trace_hardirqs_on+0x310/0x310
[  654.045269]  ? lock_downgrade+0x900/0x900
[  654.049422]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  654.054522]  ? ___ratelimit+0x3b9/0x672
[  654.058498]  ? idr_get_free+0xf70/0xf70
[  654.062468]  ? find_held_lock+0x36/0x1c0
[  654.066547]  oom_kill_process.cold.27+0x10/0x903
[  654.071301]  ? zap_class+0x640/0x640
[  654.075016]  ? check_preemption_disabled+0x48/0x280
[  654.080035]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  654.084961]  ? kasan_check_read+0x11/0x20
[  654.089105]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  654.094381]  ? oom_evaluate_task+0x540/0x540
[  654.098789]  ? find_held_lock+0x36/0x1c0
[  654.102861]  ? out_of_memory+0x974/0x1430
[  654.107014]  ? lock_downgrade+0x900/0x900
[  654.111162]  ? check_preemption_disabled+0x48/0x280
[  654.116179]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  654.121105]  ? kasan_check_read+0x11/0x20
[  654.125254]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  654.130534]  ? rcu_softirq_qs+0x20/0x20
[  654.134515]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  654.140061]  ? oom_evaluate_task+0x302/0x540
[  654.144486]  out_of_memory+0xa84/0x1430
[  654.148475]  ? oom_killer_disable+0x3a0/0x3a0
[  654.152986]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  654.158884]  ? __ww_mutex_check_waiters+0x160/0x160
[  654.163912]  __alloc_pages_slowpath+0x232c/0x2de0
[  654.168787]  ? warn_alloc+0x120/0x120
[  654.172593]  ? mark_held_locks+0x130/0x130
[  654.176830]  ? find_get_entry+0xaae/0x1120
[  654.181076]  ? filemap_map_pages+0x1a20/0x1a20
[  654.185664]  ? zap_class+0x640/0x640
[  654.189379]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  654.194918]  ? check_preemption_disabled+0x48/0x280
[  654.199935]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  654.205468]  ? should_fail+0x22d/0xd01
[  654.209367]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  654.214474]  ? zap_class+0x640/0x640
[  654.218245]  ? __lock_is_held+0xb5/0x140
[  654.222318]  ? mark_held_locks+0x130/0x130
[  654.226558]  ? lock_release+0xa00/0xa00
[  654.230534]  ? perf_trace_sched_process_exec+0x860/0x860
[  654.235985]  ? xa_load+0x2ba/0x460
[  654.239544]  ? lock_downgrade+0x900/0x900
[  654.243709]  ? __might_sleep+0x95/0x190
[  654.247709]  __alloc_pages_nodemask+0xad8/0xea0
[  654.252393]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  654.257410]  ? __page_cache_alloc+0x191/0x5c0
[  654.261901]  ? xa_load+0x2e1/0x460
[  654.265438]  ? xa_clear_mark+0x40/0x40
[  654.269329]  ? zap_class+0x640/0x640
[  654.273052]  ? zap_class+0x640/0x640
[  654.276769]  ? zap_class+0x640/0x640
[  654.280502]  ? __do_page_cache_readahead+0x663/0x810
[  654.285609]  ? find_held_lock+0x36/0x1c0
[  654.289724]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  654.295287]  alloc_pages_current+0x173/0x350
[  654.299718]  __page_cache_alloc+0x38c/0x5c0
[  654.304068]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  654.308997]  ? kasan_check_read+0x11/0x20
[  654.313144]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  654.318454]  ? generic_perform_write+0x6a0/0x6a0
[  654.323205]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  654.328747]  ? check_preemption_disabled+0x48/0x280
[  654.333775]  filemap_fault+0x1595/0x25f0
[  654.337864]  ? __lock_page_or_retry+0xa00/0xa00
[  654.342534]  ? mark_held_locks+0x130/0x130
[  654.346788]  ? filemap_map_pages+0xd6b/0x1a20
[  654.351305]  ? lock_downgrade+0x900/0x900
[  654.355451]  ? check_preemption_disabled+0x48/0x280
[  654.360470]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  654.365416]  ? kasan_check_read+0x11/0x20
[  654.369561]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  654.374835]  ? rcu_softirq_qs+0x20/0x20
[  654.378825]  ? filemap_map_pages+0xd92/0x1a20
[  654.383327]  ? print_usage_bug+0xc0/0xc0
[  654.387395]  ? find_get_entries_tag+0x1400/0x1400
[  654.392237]  ? __kasan_slab_free+0x102/0x150
[  654.396648]  ? kasan_slab_free+0xe/0x10
[  654.400619]  ? kmem_cache_free+0x83/0x290
[  654.404772]  ? __sigqueue_free.part.29+0x74/0x90
[  654.409560]  ? lock_acquire+0x1ed/0x520
[  654.413562]  ? ext4_filemap_fault+0x7a/0xad
[  654.417894]  ? lock_release+0xa00/0xa00
[  654.421881]  ? perf_trace_sched_process_exec+0x860/0x860
[  654.427355]  ? print_usage_bug+0xc0/0xc0
[  654.431412]  ? print_usage_bug+0xc0/0xc0
[  654.435482]  ? down_read+0x8d/0x120
[  654.439104]  ? ext4_filemap_fault+0x7a/0xad
[  654.443422]  ? __down_interruptible+0x700/0x700
[  654.448112]  ext4_filemap_fault+0x82/0xad
[  654.452259]  __do_fault+0x100/0x6b0
[  654.455898]  ? pmd_devmap_trans_unstable+0x220/0x220
[  654.461011]  ? mark_held_locks+0x130/0x130
[  654.465247]  ? mark_held_locks+0x130/0x130
[  654.469487]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  654.475024]  ? rcu_pm_notify+0xc0/0xc0
[  654.478918]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  654.484462]  __handle_mm_fault+0x3ea0/0x5be0
[  654.488879]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  654.493717]  ? _raw_spin_unlock_irq+0x27/0x80
[  654.498218]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  654.502801]  ? trace_hardirqs_on+0xbd/0x310
[  654.507120]  ? kasan_check_read+0x11/0x20
[  654.511271]  ? __set_current_blocked+0xdf/0x120
[  654.515957]  ? trace_hardirqs_off_caller+0x310/0x310
[  654.521076]  ? zap_class+0x640/0x640
[  654.524790]  ? zap_class+0x640/0x640
[  654.528509]  ? find_held_lock+0x36/0x1c0
[  654.532577]  ? handle_mm_fault+0x42a/0xc70
[  654.536823]  ? lock_downgrade+0x900/0x900
[  654.540966]  ? check_preemption_disabled+0x48/0x280
[  654.546000]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  654.550943]  ? kasan_check_read+0x11/0x20
[  654.555230]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  654.560508]  ? rcu_softirq_qs+0x20/0x20
[  654.564483]  ? trace_hardirqs_off_caller+0x310/0x310
[  654.569587]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  654.575142]  ? check_preemption_disabled+0x48/0x280
[  654.580184]  handle_mm_fault+0x54f/0xc70
[  654.584249]  ? __handle_mm_fault+0x5be0/0x5be0
[  654.588849]  ? find_vma+0x34/0x190
[  654.592396]  __do_page_fault+0x5e8/0xe60
[  654.596461]  ? exit_to_usermode_loop+0x1f4/0x380
[  654.601228]  do_page_fault+0xf2/0x7e0
[  654.605033]  ? vmalloc_sync_all+0x30/0x30
[  654.609214]  ? error_entry+0x70/0xd0
[  654.612982]  ? trace_hardirqs_off_caller+0xbb/0x310
[  654.618008]  ? trace_hardirqs_on_caller+0xc0/0x310
[  654.622934]  ? syscall_return_slowpath+0x5e0/0x5e0
[  654.627859]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  654.632715]  ? trace_hardirqs_on_caller+0x310/0x310
[  654.637758]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  654.643229]  ? prepare_exit_to_usermode+0x291/0x3b0
[  654.648249]  ? page_fault+0x8/0x30
[  654.651794]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  654.656643]  ? page_fault+0x8/0x30
[  654.660186]  page_fault+0x1e/0x30
[  654.663649] RIP: 0033:0x45db60
[  654.666865] Code: Bad RIP value.
[  654.670227] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  654.675585] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  654.682849] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  654.690631] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  654.697898] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  654.705162] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  654.712461] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  654.712466] warn_alloc_show_mem: 1 callbacks suppressed
[  654.712475] Mem-Info:
[  654.719311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  654.719319] Call Trace:
[  654.724687] active_anon:42936 inactive_anon:306 isolated_anon:0
[  654.724687]  active_file:13 inactive_file:13 isolated_file:0
[  654.724687]  unevictable:0 dirty:0 writeback:0 unstable:0
[  654.724687]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  654.724687]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  654.724687]  free:13785 free_pcp:492 free_cma:0
[  654.727068]  dump_stack+0x244/0x39d
[  654.736419] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  654.739001]  ? dump_stack_print_info.cold.1+0x20/0x20
[  654.771771] 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
[  654.775402]  warn_alloc.cold.116+0xb7/0x1bd
[  654.802949] lowmem_reserve[]: 0 2818 6321 6321
[  654.808148]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  654.834241] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  654.838568]  ? lock_downgrade+0x900/0x900
[  654.843123] lowmem_reserve[]: 0 0 3503 3503
[  654.847966]  ? trace_hardirqs_off+0xb8/0x310
[  654.875089] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  654.879230]  ? trace_hardirqs_off+0xb8/0x310
[  654.883520] lowmem_reserve[]: 0 0 0 0
[  654.887928]  __alloc_pages_slowpath+0x2651/0x2de0
[  654.917047] 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
[  654.921486]  ? warn_alloc+0x120/0x120
[  654.925235] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  654.930070]  ? print_usage_bug+0xc0/0xc0
[  654.943592] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  654.947380]  ? warn_alloc+0x120/0x120
[  654.962543] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  654.966591]  ? warn_alloc+0x120/0x120
[  654.981751] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  654.985554]  ? print_usage_bug+0xc0/0xc0
[  654.994364] 380 total pagecache pages
[  654.998173]  ? print_usage_bug+0xc0/0xc0
[  655.006725] 0 pages in swap cache
[  655.010798]  ? __lock_acquire+0x62f/0x4c20
[  655.014574] Swap cache stats: add 0, delete 0, find 0/0
[  655.018626]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  655.022054] Free swap  = 0kB
[  655.026299]  ? should_fail+0x22d/0xd01
[  655.031637] Total swap = 0kB
[  655.037165]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  655.040157] 1965979 pages RAM
[  655.044036]  ? __lock_acquire+0x62f/0x4c20
[  655.047030] 0 pages HighMem/MovableOnly
[  655.052122]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  655.055201] 342854 pages reserved
[  655.059456]  ? __lock_acquire+0x62f/0x4c20
[  655.063402] 0 pages cma reserved
[  655.068494]  ? should_fail+0x22d/0xd01
[  655.071988] aoe: skb alloc failure
[  655.076152]  ? mark_held_locks+0x130/0x130
[  655.079548] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  655.083367]  ? mark_held_locks+0x130/0x130
[  655.086879] syz-fuzzer cpuset=/ mems_allowed=0
[  655.091106]  ? zap_class+0x640/0x640
[  655.113813]  ? zap_class+0x640/0x640
[  655.117529]  ? zap_class+0x640/0x640
[  655.121244]  ? print_usage_bug+0xc0/0xc0
[  655.125303]  ? mark_held_locks+0x130/0x130
[  655.129555]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.135090]  ? check_preemption_disabled+0x48/0x280
[  655.140116]  ? __lock_is_held+0xb5/0x140
[  655.144181]  __alloc_pages_nodemask+0xad8/0xea0
[  655.148848]  ? zap_class+0x640/0x640
[  655.152568]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  655.157595]  ? find_held_lock+0x36/0x1c0
[  655.161668]  ? ____cache_alloc_node+0x1c7/0x1e0
[  655.166339]  ? lock_downgrade+0x900/0x900
[  655.170494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.176036]  cache_grow_begin+0xa5/0x8c0
[  655.180097]  ? do_raw_spin_unlock+0xa7/0x330
[  655.184513]  fallback_alloc+0x204/0x2e0
[  655.188492]  ____cache_alloc_node+0x1c7/0x1e0
[  655.192988]  kmem_cache_alloc_node+0xe3/0x730
[  655.197483]  ? ipv6_get_ifaddr+0x42e/0x620
[  655.201725]  __alloc_skb+0x119/0x770
[  655.205457]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  655.210746]  ? netdev_alloc_frag+0x1f0/0x1f0
[  655.215160]  ? lock_downgrade+0x900/0x900
[  655.219325]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.224886]  ? refcount_sub_and_test_checked+0x203/0x310
[  655.230341]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  655.235824]  ? addrconf_rs_timer+0x690/0x690
[  655.240241]  ndisc_alloc_skb+0x144/0x340
[  655.244305]  ndisc_send_rs+0x331/0x6e0
[  655.248196]  addrconf_rs_timer+0x314/0x690
[  655.252434]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  655.256676]  call_timer_fn+0x272/0x920
[  655.260573]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  655.264808]  ? process_timeout+0x40/0x40
[  655.268889]  ? __run_timers+0x7da/0xc70
[  655.272868]  ? _raw_spin_unlock_irq+0x27/0x80
[  655.277377]  ? _raw_spin_unlock_irq+0x27/0x80
[  655.281898]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  655.286149]  ? lockdep_hardirqs_on+0x296/0x5b0
[  655.290731]  ? trace_hardirqs_on+0xbd/0x310
[  655.295074]  ? kasan_check_read+0x11/0x20
[  655.299231]  ? __run_timers+0x7da/0xc70
[  655.303202]  ? trace_hardirqs_off_caller+0x310/0x310
[  655.308315]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  655.312547]  __run_timers+0x7e5/0xc70
[  655.316357]  ? timer_fixup_init+0x70/0x70
[  655.320506]  ? _raw_spin_unlock_irq+0x27/0x80
[  655.325003]  ? _raw_spin_unlock_irq+0x27/0x80
[  655.329513]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  655.334109]  ? trace_hardirqs_on+0xbd/0x310
[  655.338430]  ? kasan_check_read+0x11/0x20
[  655.342582]  ? finish_task_switch+0x1f4/0x910
[  655.347104]  ? trace_hardirqs_off_caller+0x310/0x310
[  655.352218]  ? compat_start_thread+0x80/0x80
[  655.356680]  ? pvclock_read_flags+0x160/0x160
[  655.361174]  ? __switch_to_asm+0x34/0x70
[  655.365243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.370789]  ? check_preemption_disabled+0x48/0x280
[  655.375814]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  655.381359]  ? rcu_pm_notify+0xc0/0xc0
[  655.385251]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.390790]  ? check_preemption_disabled+0x48/0x280
[  655.395812]  run_timer_softirq+0x52/0xb0
[  655.399888]  ? rcu_read_lock_sched_held+0x14f/0x180
[  655.404934]  __do_softirq+0x308/0xb7e
[  655.408746]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  655.413526]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  655.418628]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  655.424093]  ? trace_hardirqs_on+0x310/0x310
[  655.428509]  ? schedule+0x108/0x460
[  655.432145]  ? trace_hardirqs_off+0xb8/0x310
[  655.436557]  ? smpboot_thread_fn+0x68b/0xa00
[  655.440966]  ? trace_hardirqs_on+0x310/0x310
[  655.445373]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  655.450914]  ? check_preemption_disabled+0x48/0x280
[  655.455929]  ? takeover_tasklets+0xa90/0xa90
[  655.460337]  run_ksoftirqd+0x5e/0x100
[  655.464136]  smpboot_thread_fn+0x68b/0xa00
[  655.468387]  ? sort_range+0x30/0x30
[  655.472031]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  655.477134]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  655.482674]  ? __kthread_parkme+0xfb/0x1a0
[  655.486912]  ? sort_range+0x30/0x30
[  655.490535]  kthread+0x35a/0x440
[  655.493903]  ? kthread_stop+0x900/0x900
[  655.497877]  ret_from_fork+0x3a/0x50
[  655.501624] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  655.501695] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  655.508638] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  655.508652] Call Trace:
[  655.515236] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  655.524473]  <IRQ>
[  655.527058] ksoftirqd/0 cpuset=/ mems_allowed=0
[  655.537368]  dump_stack+0x244/0x39d
[  655.547785]  ? dump_stack_print_info.cold.1+0x20/0x20
[  655.552992]  warn_alloc.cold.116+0xb7/0x1bd
[  655.557330]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  655.562203]  ? lock_downgrade+0x900/0x900
[  655.566358]  ? trace_hardirqs_off+0xb8/0x310
[  655.570798]  ? trace_hardirqs_off+0xb8/0x310
[  655.575230]  __alloc_pages_slowpath+0x2651/0x2de0
[  655.580103]  ? warn_alloc+0x120/0x120
[  655.583908]  ? warn_alloc+0x120/0x120
[  655.587715]  ? warn_alloc+0x120/0x120
[  655.591528]  ? print_usage_bug+0xc0/0xc0
[  655.595591]  ? print_usage_bug+0xc0/0xc0
[  655.599692]  ? ktime_get+0x2c1/0x400
[  655.603412]  ? check_preemption_disabled+0x48/0x280
[  655.608423]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  655.612919]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  655.618458]  ? should_fail+0x22d/0xd01
[  655.622343]  ? kasan_check_read+0x11/0x20
[  655.626489]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  655.631610]  ? __lock_acquire+0x62f/0x4c20
[  655.635850]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  655.640954]  ? should_fail+0x22d/0xd01
[  655.644839]  ? print_usage_bug+0xc0/0xc0
[  655.649001]  ? mark_held_locks+0x130/0x130
[  655.653240]  ? mark_held_locks+0x130/0x130
[  655.657480]  ? check_preemption_disabled+0x48/0x280
[  655.662505]  ? zap_class+0x640/0x640
[  655.666250]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  655.671038]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.676573]  ? check_preemption_disabled+0x48/0x280
[  655.681612]  ? __lock_is_held+0xb5/0x140
[  655.685676]  __alloc_pages_nodemask+0xad8/0xea0
[  655.690340]  ? zap_class+0x640/0x640
[  655.694061]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  655.699091]  ? find_held_lock+0x36/0x1c0
[  655.703178]  ? ____cache_alloc_node+0x1c7/0x1e0
[  655.707864]  ? lock_downgrade+0x900/0x900
[  655.712019]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.717563]  cache_grow_begin+0xa5/0x8c0
[  655.721622]  ? do_raw_spin_unlock+0xa7/0x330
[  655.726037]  fallback_alloc+0x204/0x2e0
[  655.730017]  ____cache_alloc_node+0x1c7/0x1e0
[  655.734519]  kmem_cache_alloc_node+0xe3/0x730
[  655.739014]  ? lockdep_hardirqs_on+0x296/0x5b0
[  655.743610]  __alloc_skb+0x119/0x770
[  655.747342]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  655.752707]  ? netdev_alloc_frag+0x1f0/0x1f0
[  655.757134]  ? vprintk_default+0x28/0x30
[  655.761194]  ? vprintk_func+0x85/0x181
[  655.765086]  ? printk+0xa7/0xcf
[  655.768364]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  655.773143]  new_skb+0x26/0x1c0
[  655.776440]  aoecmd_cfg+0x279/0x7f0
[  655.780066]  ? find_held_lock+0x36/0x1c0
[  655.784129]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  655.788458]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.794008]  ? __lock_is_held+0xb5/0x140
[  655.798079]  discover_timer+0x50/0x60
[  655.801881]  call_timer_fn+0x272/0x920
[  655.805779]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  655.810621]  ? process_timeout+0x40/0x40
[  655.814690]  ? mark_held_locks+0xc7/0x130
[  655.818857]  ? _raw_spin_unlock_irq+0x27/0x80
[  655.823350]  ? _raw_spin_unlock_irq+0x27/0x80
[  655.827848]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  655.832688]  ? lockdep_hardirqs_on+0x296/0x5b0
[  655.837278]  ? trace_hardirqs_on+0xbd/0x310
[  655.841612]  ? kasan_check_read+0x11/0x20
[  655.845762]  ? __run_timers+0x7da/0xc70
[  655.849772]  ? trace_hardirqs_off_caller+0x310/0x310
[  655.854898]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  655.859736]  __run_timers+0x7e5/0xc70
[  655.863557]  ? timer_fixup_init+0x70/0x70
[  655.867704]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  655.872725]  ? zap_class+0x640/0x640
[  655.876463]  ? print_usage_bug+0xc0/0xc0
[  655.880537]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  655.885757]  ? find_held_lock+0x36/0x1c0
[  655.889846]  ? zap_class+0x640/0x640
[  655.893565]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.899107]  ? check_preemption_disabled+0x48/0x280
[  655.904133]  ? __lock_is_held+0xb5/0x140
[  655.908196]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.913738]  ? check_preemption_disabled+0x48/0x280
[  655.918790]  run_timer_softirq+0x52/0xb0
[  655.922855]  ? rcu_read_lock_sched_held+0x14f/0x180
[  655.927874]  __do_softirq+0x308/0xb7e
[  655.931678]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  655.936172]  ? lock_downgrade+0x900/0x900
[  655.940322]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  655.945446]  ? pvclock_read_flags+0x160/0x160
[  655.949942]  ? lapic_next_event+0x5a/0x90
[  655.954093]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  655.959639]  ? kvm_clock_read+0x18/0x30
[  655.963614]  ? kvm_sched_clock_read+0x9/0x20
[  655.968025]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  655.973563]  ? check_preemption_disabled+0x48/0x280
[  655.978590]  irq_exit+0x17f/0x1c0
[  655.982046]  smp_apic_timer_interrupt+0x1cb/0x760
[  655.986886]  ? smp_reschedule_interrupt+0x109/0x650
[  655.991908]  ? smp_call_function_single_interrupt+0x650/0x650
[  655.997790]  ? interrupt_entry+0xb5/0xc0
[  656.001855]  ? trace_hardirqs_off_caller+0xbb/0x310
[  656.006887]  ? trace_hardirqs_off_caller+0xbb/0x310
[  656.011903]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  656.016799]  ? trace_hardirqs_on_caller+0x310/0x310
[  656.021831]  ? trace_hardirqs_on_caller+0x310/0x310
[  656.026844]  ? task_prio+0x50/0x50
[  656.030403]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  656.035956]  ? check_preemption_disabled+0x48/0x280
[  656.040976]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  656.045829]  apic_timer_interrupt+0xf/0x20
[  656.050055]  </IRQ>
[  656.052294] RIP: 0010:dump_stack+0x358/0x39d
[  656.056701] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  656.075598] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  656.083299] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  656.090564] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  656.097827] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  656.105128] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  656.112396] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  656.119681]  ? dump_stack+0x34f/0x39d
[  656.123491]  ? dump_stack_print_info.cold.1+0x20/0x20
[  656.128680]  ? mark_held_locks+0x130/0x130
[  656.132916]  ? mark_held_locks+0x130/0x130
[  656.137158]  dump_header+0x27b/0xf72
[  656.140886]  ? pagefault_out_of_memory+0x197/0x197
[  656.145825]  ? __lock_acquire+0x62f/0x4c20
[  656.150063]  ? percpu_ref_get_many+0x240/0x240
[  656.154647]  ? print_usage_bug+0xc0/0xc0
[  656.158712]  ? zap_class+0x640/0x640
[  656.162433]  ? print_usage_bug+0xc0/0xc0
[  656.166495]  ? print_usage_bug+0xc0/0xc0
[  656.170560]  ? zap_class+0x640/0x640
[  656.174283]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  656.179824]  ? find_held_lock+0x36/0x1c0
[  656.183896]  ? mark_held_locks+0xc7/0x130
[  656.188050]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  656.193154]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  656.198260]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  656.202852]  ? trace_hardirqs_on+0xbd/0x310
[  656.207175]  ? kasan_check_read+0x11/0x20
[  656.211323]  ? ___ratelimit+0x3b4/0x672
[  656.215303]  ? trace_hardirqs_off_caller+0x310/0x310
[  656.220404]  ? trace_hardirqs_on+0x310/0x310
[  656.224823]  ? lock_downgrade+0x900/0x900
[  656.228980]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  656.234088]  ? ___ratelimit+0x3b9/0x672
[  656.238065]  ? idr_get_free+0xf70/0xf70
[  656.242040]  ? find_held_lock+0x36/0x1c0
[  656.246116]  oom_kill_process.cold.27+0x10/0x903
[  656.250871]  ? zap_class+0x640/0x640
[  656.254640]  ? check_preemption_disabled+0x48/0x280
[  656.259667]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  656.264590]  ? kasan_check_read+0x11/0x20
[  656.268737]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  656.274026]  ? oom_evaluate_task+0x540/0x540
[  656.278439]  ? find_held_lock+0x36/0x1c0
[  656.282509]  ? out_of_memory+0x974/0x1430
[  656.286656]  ? lock_downgrade+0x900/0x900
[  656.290804]  ? check_preemption_disabled+0x48/0x280
[  656.295822]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  656.300754]  ? kasan_check_read+0x11/0x20
[  656.304901]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  656.310179]  ? rcu_softirq_qs+0x20/0x20
[  656.314156]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  656.319706]  ? oom_evaluate_task+0x302/0x540
[  656.324165]  out_of_memory+0xa84/0x1430
[  656.328146]  ? oom_killer_disable+0x3a0/0x3a0
[  656.332645]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  656.337588]  ? __ww_mutex_check_waiters+0x160/0x160
[  656.342618]  __alloc_pages_slowpath+0x232c/0x2de0
[  656.347505]  ? warn_alloc+0x120/0x120
[  656.351320]  ? mark_held_locks+0x130/0x130
[  656.355566]  ? find_get_entry+0xaae/0x1120
[  656.359815]  ? filemap_map_pages+0x1a20/0x1a20
[  656.364421]  ? zap_class+0x640/0x640
[  656.368165]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  656.373699]  ? check_preemption_disabled+0x48/0x280
[  656.378713]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  656.384259]  ? should_fail+0x22d/0xd01
[  656.388159]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  656.393272]  ? zap_class+0x640/0x640
[  656.397019]  ? __lock_is_held+0xb5/0x140
[  656.401092]  ? mark_held_locks+0x130/0x130
[  656.405337]  ? lock_release+0xa00/0xa00
[  656.409314]  ? perf_trace_sched_process_exec+0x860/0x860
[  656.414771]  ? xa_load+0x2ba/0x460
[  656.418312]  ? lock_downgrade+0x900/0x900
[  656.422476]  ? __might_sleep+0x95/0x190
[  656.426465]  __alloc_pages_nodemask+0xad8/0xea0
[  656.431140]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  656.436159]  ? __page_cache_alloc+0x191/0x5c0
[  656.440654]  ? xa_load+0x2e1/0x460
[  656.444195]  ? xa_clear_mark+0x40/0x40
[  656.448087]  ? zap_class+0x640/0x640
[  656.451811]  ? zap_class+0x640/0x640
[  656.455572]  ? zap_class+0x640/0x640
[  656.459297]  ? __do_page_cache_readahead+0x663/0x810
[  656.464404]  ? find_held_lock+0x36/0x1c0
[  656.468484]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  656.474026]  alloc_pages_current+0x173/0x350
[  656.478444]  __page_cache_alloc+0x38c/0x5c0
[  656.482792]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  656.487722]  ? kasan_check_read+0x11/0x20
[  656.491875]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  656.497157]  ? generic_perform_write+0x6a0/0x6a0
[  656.501914]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  656.507465]  ? check_preemption_disabled+0x48/0x280
[  656.512519]  filemap_fault+0x1595/0x25f0
[  656.516603]  ? __lock_page_or_retry+0xa00/0xa00
[  656.521288]  ? mark_held_locks+0x130/0x130
[  656.525560]  ? filemap_map_pages+0xd6b/0x1a20
[  656.530083]  ? lock_downgrade+0x900/0x900
[  656.534247]  ? check_preemption_disabled+0x48/0x280
[  656.539312]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  656.544280]  ? kasan_check_read+0x11/0x20
[  656.548436]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  656.553907]  ? rcu_softirq_qs+0x20/0x20
[  656.557896]  ? filemap_map_pages+0xd92/0x1a20
[  656.562392]  ? print_usage_bug+0xc0/0xc0
[  656.566462]  ? find_get_entries_tag+0x1400/0x1400
[  656.571305]  ? __kasan_slab_free+0x102/0x150
[  656.575717]  ? kasan_slab_free+0xe/0x10
[  656.579694]  ? kmem_cache_free+0x83/0x290
[  656.583842]  ? __sigqueue_free.part.29+0x74/0x90
[  656.588634]  ? lock_acquire+0x1ed/0x520
[  656.592610]  ? ext4_filemap_fault+0x7a/0xad
[  656.596964]  ? lock_release+0xa00/0xa00
[  656.600936]  ? perf_trace_sched_process_exec+0x860/0x860
[  656.606389]  ? print_usage_bug+0xc0/0xc0
[  656.610468]  ? print_usage_bug+0xc0/0xc0
[  656.614566]  ? down_read+0x8d/0x120
[  656.618205]  ? ext4_filemap_fault+0x7a/0xad
[  656.622524]  ? __down_interruptible+0x700/0x700
[  656.627207]  ext4_filemap_fault+0x82/0xad
[  656.631357]  __do_fault+0x100/0x6b0
[  656.634989]  ? pmd_devmap_trans_unstable+0x220/0x220
[  656.640092]  ? mark_held_locks+0x130/0x130
[  656.644345]  ? mark_held_locks+0x130/0x130
[  656.648579]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  656.654122]  ? rcu_pm_notify+0xc0/0xc0
[  656.658017]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  656.663609]  __handle_mm_fault+0x3ea0/0x5be0
[  656.668028]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  656.672867]  ? _raw_spin_unlock_irq+0x27/0x80
[  656.677362]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  656.681950]  ? trace_hardirqs_on+0xbd/0x310
[  656.686789]  ? kasan_check_read+0x11/0x20
[  656.690939]  ? __set_current_blocked+0xdf/0x120
[  656.695612]  ? trace_hardirqs_off_caller+0x310/0x310
[  656.700729]  ? zap_class+0x640/0x640
[  656.704448]  ? zap_class+0x640/0x640
[  656.708171]  ? find_held_lock+0x36/0x1c0
[  656.712243]  ? handle_mm_fault+0x42a/0xc70
[  656.716485]  ? lock_downgrade+0x900/0x900
[  656.720631]  ? check_preemption_disabled+0x48/0x280
[  656.725682]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  656.730614]  ? kasan_check_read+0x11/0x20
[  656.734817]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  656.740097]  ? rcu_softirq_qs+0x20/0x20
[  656.744069]  ? trace_hardirqs_off_caller+0x310/0x310
[  656.749191]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  656.754766]  ? check_preemption_disabled+0x48/0x280
[  656.759796]  handle_mm_fault+0x54f/0xc70
[  656.763865]  ? __handle_mm_fault+0x5be0/0x5be0
[  656.768451]  ? find_vma+0x34/0x190
[  656.772001]  __do_page_fault+0x5e8/0xe60
[  656.776062]  ? exit_to_usermode_loop+0x1f4/0x380
[  656.780827]  do_page_fault+0xf2/0x7e0
[  656.784649]  ? vmalloc_sync_all+0x30/0x30
[  656.788803]  ? error_entry+0x70/0xd0
[  656.792520]  ? trace_hardirqs_off_caller+0xbb/0x310
[  656.797534]  ? trace_hardirqs_on_caller+0xc0/0x310
[  656.802461]  ? syscall_return_slowpath+0x5e0/0x5e0
[  656.807390]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  656.812239]  ? trace_hardirqs_on_caller+0x310/0x310
[  656.817257]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  656.822783]  ? prepare_exit_to_usermode+0x291/0x3b0
[  656.827805]  ? page_fault+0x8/0x30
[  656.831364]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  656.836220]  ? page_fault+0x8/0x30
[  656.839785]  page_fault+0x1e/0x30
[  656.843233] RIP: 0033:0x45db60
[  656.846453] Code: Bad RIP value.
[  656.849812] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  656.855215] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  656.862481] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  656.869763] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  656.877027] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  656.884291] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  656.891581] warn_alloc_show_mem: 1 callbacks suppressed
[  656.891593] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  656.891595] Mem-Info:
[  656.891624] active_anon:42936 inactive_anon:306 isolated_anon:0
[  656.891624]  active_file:13 inactive_file:13 isolated_file:0
[  656.891624]  unevictable:0 dirty:0 writeback:0 unstable:0
[  656.891624]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  656.891624]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  656.891624]  free:13785 free_pcp:492 free_cma:0
[  656.896966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  656.903820] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  656.906221] Call Trace:
[  656.938997] 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
[  656.948364]  dump_stack+0x244/0x39d
[  656.975920] lowmem_reserve[]: 0 2818 6321 6321
[  656.978498]  ? dump_stack_print_info.cold.1+0x20/0x20
[  657.004577] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  657.008209]  warn_alloc.cold.116+0xb7/0x1bd
[  657.012760] lowmem_reserve[]: 0 0 3503 3503
[  657.017948]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  657.045073] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  657.049401]  ? lock_downgrade+0x900/0x900
[  657.053692] lowmem_reserve[]: 0 0 0 0
[  657.058530]  ? trace_hardirqs_off+0xb8/0x310
[  657.087649] 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
[  657.091794]  ? trace_hardirqs_off+0xb8/0x310
[  657.095568] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  657.099990]  __alloc_pages_slowpath+0x2651/0x2de0
[  657.113500] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  657.117923]  ? warn_alloc+0x120/0x120
[  657.133054] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  657.137885]  ? print_usage_bug+0xc0/0xc0
[  657.153038] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  657.156822]  ? warn_alloc+0x120/0x120
[  657.165644] 380 total pagecache pages
[  657.169707]  ? warn_alloc+0x120/0x120
[  657.178259] 0 pages in swap cache
[  657.182057]  ? print_usage_bug+0xc0/0xc0
[  657.185838] Swap cache stats: add 0, delete 0, find 0/0
[  657.189628]  ? print_usage_bug+0xc0/0xc0
[  657.193055] Free swap  = 0kB
[  657.197100]  ? __lock_acquire+0x62f/0x4c20
[  657.202436] Total swap = 0kB
[  657.206493]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  657.209482] 1965979 pages RAM
[  657.213706]  ? should_fail+0x22d/0xd01
[  657.216700] 0 pages HighMem/MovableOnly
[  657.222227]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  657.225308] 342854 pages reserved
[  657.229192]  ? __lock_acquire+0x62f/0x4c20
[  657.233149] 0 pages cma reserved
[  657.238256]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  657.241767] aoe: skb alloc failure
[  657.245909]  ? __lock_acquire+0x62f/0x4c20
[  657.245925]  ? should_fail+0x22d/0xd01
[  657.249375] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  657.254415]  ? find_held_lock+0x36/0x1c0
[  657.257943] syz-fuzzer cpuset=/ mems_allowed=0
[  657.262219]  ? mark_held_locks+0x130/0x130
[  657.289116]  ? mark_held_locks+0x130/0x130
[  657.293369]  ? zap_class+0x640/0x640
[  657.297115]  ? mark_held_locks+0xc7/0x130
[  657.301260]  ? do_raw_spin_unlock+0xa7/0x330
[  657.305671]  ? zap_class+0x640/0x640
[  657.309387]  ? print_usage_bug+0xc0/0xc0
[  657.313452]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  657.318988]  ? check_preemption_disabled+0x48/0x280
[  657.324017]  ? __lock_is_held+0xb5/0x140
[  657.328092]  __alloc_pages_nodemask+0xad8/0xea0
[  657.332770]  ? zap_class+0x640/0x640
[  657.336494]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  657.341523]  ? find_held_lock+0x36/0x1c0
[  657.345594]  ? ____cache_alloc_node+0x1c7/0x1e0
[  657.350261]  ? lock_downgrade+0x900/0x900
[  657.354416]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  657.359976]  cache_grow_begin+0xa5/0x8c0
[  657.364037]  ? do_raw_spin_unlock+0xa7/0x330
[  657.368452]  fallback_alloc+0x204/0x2e0
[  657.372433]  ____cache_alloc_node+0x1c7/0x1e0
[  657.376933]  kmem_cache_alloc_node+0xe3/0x730
[  657.381428]  ? ipv6_get_ifaddr+0x42e/0x620
[  657.385671]  __alloc_skb+0x119/0x770
[  657.389382]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  657.394663]  ? netdev_alloc_frag+0x1f0/0x1f0
[  657.399087]  ? lock_downgrade+0x900/0x900
[  657.403246]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  657.408786]  ? refcount_sub_and_test_checked+0x203/0x310
[  657.414240]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  657.419734]  ? addrconf_rs_timer+0x690/0x690
[  657.424184]  ndisc_alloc_skb+0x144/0x340
[  657.428248]  ndisc_send_rs+0x331/0x6e0
[  657.432138]  addrconf_rs_timer+0x314/0x690
[  657.436383]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  657.440632]  call_timer_fn+0x272/0x920
[  657.444530]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  657.448794]  ? process_timeout+0x40/0x40
[  657.452892]  ? __run_timers+0x7da/0xc70
[  657.456870]  ? _raw_spin_unlock_irq+0x27/0x80
[  657.461362]  ? _raw_spin_unlock_irq+0x27/0x80
[  657.465852]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  657.470089]  ? lockdep_hardirqs_on+0x296/0x5b0
[  657.474684]  ? trace_hardirqs_on+0xbd/0x310
[  657.479041]  ? kasan_check_read+0x11/0x20
[  657.483183]  ? __run_timers+0x7da/0xc70
[  657.487160]  ? trace_hardirqs_off_caller+0x310/0x310
[  657.492265]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  657.496504]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  657.500734]  __run_timers+0x7e5/0xc70
[  657.504557]  ? timer_fixup_init+0x70/0x70
[  657.508704]  ? _raw_spin_unlock_irq+0x27/0x80
[  657.513225]  ? _raw_spin_unlock_irq+0x27/0x80
[  657.517724]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  657.522344]  ? trace_hardirqs_on+0xbd/0x310
[  657.526661]  ? kasan_check_read+0x11/0x20
[  657.530840]  ? finish_task_switch+0x1f4/0x910
[  657.535356]  ? trace_hardirqs_off_caller+0x310/0x310
[  657.540456]  ? compat_start_thread+0x80/0x80
[  657.544885]  ? pvclock_read_flags+0x160/0x160
[  657.549374]  ? __switch_to_asm+0x34/0x70
[  657.553431]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  657.558966]  ? check_preemption_disabled+0x48/0x280
[  657.564031]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  657.569571]  ? rcu_pm_notify+0xc0/0xc0
[  657.573458]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  657.578997]  ? check_preemption_disabled+0x48/0x280
[  657.584020]  run_timer_softirq+0x52/0xb0
[  657.588086]  ? rcu_read_lock_sched_held+0x14f/0x180
[  657.593099]  __do_softirq+0x308/0xb7e
[  657.596907]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  657.601671]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  657.606791]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  657.612256]  ? trace_hardirqs_on+0x310/0x310
[  657.616668]  ? schedule+0x108/0x460
[  657.620304]  ? trace_hardirqs_off+0xb8/0x310
[  657.624728]  ? smpboot_thread_fn+0x68b/0xa00
[  657.629152]  ? trace_hardirqs_on+0x310/0x310
[  657.633577]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  657.639117]  ? check_preemption_disabled+0x48/0x280
[  657.644148]  ? takeover_tasklets+0xa90/0xa90
[  657.648575]  run_ksoftirqd+0x5e/0x100
[  657.652375]  smpboot_thread_fn+0x68b/0xa00
[  657.656614]  ? sort_range+0x30/0x30
[  657.660240]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  657.665344]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  657.670898]  ? __kthread_parkme+0xfb/0x1a0
[  657.675166]  ? sort_range+0x30/0x30
[  657.678798]  kthread+0x35a/0x440
[  657.682170]  ? kthread_stop+0x900/0x900
[  657.686137]  ret_from_fork+0x3a/0x50
[  657.689874] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  657.689962] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  657.696886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  657.696895] Call Trace:
[  657.703480] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  657.712712]  <IRQ>
[  657.715284] ksoftirqd/0 cpuset=/ mems_allowed=0
[  657.725602]  dump_stack+0x244/0x39d
[  657.736002]  ? dump_stack_print_info.cold.1+0x20/0x20
[  657.741210]  warn_alloc.cold.116+0xb7/0x1bd
[  657.745536]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  657.750384]  ? lock_downgrade+0x900/0x900
[  657.754557]  ? trace_hardirqs_off+0xb8/0x310
[  657.758970]  ? trace_hardirqs_off+0xb8/0x310
[  657.763388]  __alloc_pages_slowpath+0x2651/0x2de0
[  657.768276]  ? warn_alloc+0x120/0x120
[  657.772086]  ? warn_alloc+0x120/0x120
[  657.775893]  ? warn_alloc+0x120/0x120
[  657.779698]  ? print_usage_bug+0xc0/0xc0
[  657.783768]  ? print_usage_bug+0xc0/0xc0
[  657.787834]  ? ktime_get+0x2c1/0x400
[  657.791584]  ? check_preemption_disabled+0x48/0x280
[  657.796610]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  657.801105]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  657.806646]  ? should_fail+0x22d/0xd01
[  657.810538]  ? kasan_check_read+0x11/0x20
[  657.814687]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  657.819791]  ? __lock_acquire+0x62f/0x4c20
[  657.824034]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  657.829139]  ? should_fail+0x22d/0xd01
[  657.833025]  ? print_usage_bug+0xc0/0xc0
[  657.837097]  ? mark_held_locks+0x130/0x130
[  657.841360]  ? mark_held_locks+0x130/0x130
[  657.845592]  ? check_preemption_disabled+0x48/0x280
[  657.850617]  ? zap_class+0x640/0x640
[  657.854332]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  657.859088]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  657.864628]  ? check_preemption_disabled+0x48/0x280
[  657.869655]  ? __lock_is_held+0xb5/0x140
[  657.873726]  __alloc_pages_nodemask+0xad8/0xea0
[  657.878403]  ? zap_class+0x640/0x640
[  657.882119]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  657.887145]  ? find_held_lock+0x36/0x1c0
[  657.891275]  ? ____cache_alloc_node+0x1c7/0x1e0
[  657.895959]  ? lock_downgrade+0x900/0x900
[  657.900113]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  657.905653]  cache_grow_begin+0xa5/0x8c0
[  657.909711]  ? do_raw_spin_unlock+0xa7/0x330
[  657.914133]  fallback_alloc+0x204/0x2e0
[  657.918118]  ____cache_alloc_node+0x1c7/0x1e0
[  657.922621]  kmem_cache_alloc_node+0xe3/0x730
[  657.927116]  ? lockdep_hardirqs_on+0x296/0x5b0
[  657.931709]  __alloc_skb+0x119/0x770
[  657.935446]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  657.940829]  ? netdev_alloc_frag+0x1f0/0x1f0
[  657.945246]  ? vprintk_default+0x28/0x30
[  657.949314]  ? vprintk_func+0x85/0x181
[  657.953202]  ? printk+0xa7/0xcf
[  657.956486]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  657.961283]  new_skb+0x26/0x1c0
[  657.964561]  aoecmd_cfg+0x279/0x7f0
[  657.968187]  ? find_held_lock+0x36/0x1c0
[  657.972252]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  657.976588]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  657.982138]  ? __lock_is_held+0xb5/0x140
[  657.986209]  discover_timer+0x50/0x60
[  657.990012]  call_timer_fn+0x272/0x920
[  657.993903]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  657.998757]  ? process_timeout+0x40/0x40
[  658.002827]  ? mark_held_locks+0xc7/0x130
[  658.006977]  ? _raw_spin_unlock_irq+0x27/0x80
[  658.011474]  ? _raw_spin_unlock_irq+0x27/0x80
[  658.015971]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  658.020812]  ? lockdep_hardirqs_on+0x296/0x5b0
[  658.025394]  ? trace_hardirqs_on+0xbd/0x310
[  658.029766]  ? kasan_check_read+0x11/0x20
[  658.033915]  ? __run_timers+0x7da/0xc70
[  658.037888]  ? trace_hardirqs_off_caller+0x310/0x310
[  658.043008]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  658.047847]  __run_timers+0x7e5/0xc70
[  658.051665]  ? timer_fixup_init+0x70/0x70
[  658.055814]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  658.060862]  ? zap_class+0x640/0x640
[  658.064580]  ? print_usage_bug+0xc0/0xc0
[  658.068642]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  658.073841]  ? find_held_lock+0x36/0x1c0
[  658.077906]  ? zap_class+0x640/0x640
[  658.081623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  658.087175]  ? check_preemption_disabled+0x48/0x280
[  658.092228]  ? __lock_is_held+0xb5/0x140
[  658.096292]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  658.101833]  ? check_preemption_disabled+0x48/0x280
[  658.106871]  run_timer_softirq+0x52/0xb0
[  658.110934]  ? rcu_read_lock_sched_held+0x14f/0x180
[  658.115971]  __do_softirq+0x308/0xb7e
[  658.119782]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  658.124282]  ? lock_downgrade+0x900/0x900
[  658.128435]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  658.133544]  ? pvclock_read_flags+0x160/0x160
[  658.138043]  ? lapic_next_event+0x5a/0x90
[  658.142195]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  658.147749]  ? kvm_clock_read+0x18/0x30
[  658.151723]  ? kvm_sched_clock_read+0x9/0x20
[  658.156141]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  658.161682]  ? check_preemption_disabled+0x48/0x280
[  658.166709]  irq_exit+0x17f/0x1c0
[  658.170173]  smp_apic_timer_interrupt+0x1cb/0x760
[  658.175017]  ? smp_reschedule_interrupt+0x109/0x650
[  658.180034]  ? smp_call_function_single_interrupt+0x650/0x650
[  658.185915]  ? interrupt_entry+0xb5/0xc0
[  658.189980]  ? trace_hardirqs_off_caller+0xbb/0x310
[  658.194995]  ? trace_hardirqs_off_caller+0xbb/0x310
[  658.200009]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  658.204853]  ? trace_hardirqs_on_caller+0x310/0x310
[  658.209871]  ? trace_hardirqs_on_caller+0x310/0x310
[  658.214885]  ? task_prio+0x50/0x50
[  658.218427]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  658.224009]  ? check_preemption_disabled+0x48/0x280
[  658.229030]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  658.233895]  apic_timer_interrupt+0xf/0x20
[  658.238121]  </IRQ>
[  658.240388] RIP: 0010:dump_stack+0x358/0x39d
[  658.244795] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  658.263690] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  658.271394] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  658.278666] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  658.285933] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  658.293196] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  658.300464] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  658.307766]  ? dump_stack+0x34f/0x39d
[  658.311581]  ? dump_stack_print_info.cold.1+0x20/0x20
[  658.316780]  ? mark_held_locks+0x130/0x130
[  658.321017]  ? mark_held_locks+0x130/0x130
[  658.325277]  dump_header+0x27b/0xf72
[  658.329007]  ? pagefault_out_of_memory+0x197/0x197
[  658.333943]  ? __lock_acquire+0x62f/0x4c20
[  658.338178]  ? percpu_ref_get_many+0x240/0x240
[  658.342769]  ? print_usage_bug+0xc0/0xc0
[  658.346837]  ? zap_class+0x640/0x640
[  658.350564]  ? print_usage_bug+0xc0/0xc0
[  658.354633]  ? print_usage_bug+0xc0/0xc0
[  658.358692]  ? zap_class+0x640/0x640
[  658.362409]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  658.367958]  ? find_held_lock+0x36/0x1c0
[  658.372044]  ? mark_held_locks+0xc7/0x130
[  658.376192]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  658.381293]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  658.386397]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  658.390979]  ? trace_hardirqs_on+0xbd/0x310
[  658.395300]  ? kasan_check_read+0x11/0x20
[  658.399449]  ? ___ratelimit+0x3b4/0x672
[  658.403421]  ? trace_hardirqs_off_caller+0x310/0x310
[  658.408527]  ? trace_hardirqs_on+0x310/0x310
[  658.412938]  ? lock_downgrade+0x900/0x900
[  658.417093]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  658.422209]  ? ___ratelimit+0x3b9/0x672
[  658.426223]  ? idr_get_free+0xf70/0xf70
[  658.430196]  ? find_held_lock+0x36/0x1c0
[  658.434271]  oom_kill_process.cold.27+0x10/0x903
[  658.439054]  ? zap_class+0x640/0x640
[  658.442773]  ? check_preemption_disabled+0x48/0x280
[  658.447796]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  658.452723]  ? kasan_check_read+0x11/0x20
[  658.456876]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  658.462154]  ? oom_evaluate_task+0x540/0x540
[  658.466565]  ? find_held_lock+0x36/0x1c0
[  658.470632]  ? out_of_memory+0x974/0x1430
[  658.474787]  ? lock_downgrade+0x900/0x900
[  658.478935]  ? check_preemption_disabled+0x48/0x280
[  658.483956]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  658.488886]  ? kasan_check_read+0x11/0x20
[  658.493033]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  658.498308]  ? rcu_softirq_qs+0x20/0x20
[  658.502319]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  658.507852]  ? oom_evaluate_task+0x302/0x540
[  658.512274]  out_of_memory+0xa84/0x1430
[  658.516257]  ? oom_killer_disable+0x3a0/0x3a0
[  658.520789]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  658.525735]  ? __ww_mutex_check_waiters+0x160/0x160
[  658.530772]  __alloc_pages_slowpath+0x232c/0x2de0
[  658.535677]  ? warn_alloc+0x120/0x120
[  658.539476]  ? mark_held_locks+0x130/0x130
[  658.543717]  ? find_get_entry+0xaae/0x1120
[  658.547981]  ? filemap_map_pages+0x1a20/0x1a20
[  658.552566]  ? zap_class+0x640/0x640
[  658.556492]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  658.562062]  ? check_preemption_disabled+0x48/0x280
[  658.567083]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  658.572638]  ? should_fail+0x22d/0xd01
[  658.576530]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  658.581632]  ? zap_class+0x640/0x640
[  658.585399]  ? __lock_is_held+0xb5/0x140
[  658.589468]  ? mark_held_locks+0x130/0x130
[  658.593721]  ? lock_release+0xa00/0xa00
[  658.597720]  ? perf_trace_sched_process_exec+0x860/0x860
[  658.603175]  ? xa_load+0x2ba/0x460
[  658.606713]  ? lock_downgrade+0x900/0x900
[  658.610874]  ? __might_sleep+0x95/0x190
[  658.614851]  __alloc_pages_nodemask+0xad8/0xea0
[  658.619527]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  658.624545]  ? __page_cache_alloc+0x191/0x5c0
[  658.629035]  ? xa_load+0x2e1/0x460
[  658.632590]  ? xa_clear_mark+0x40/0x40
[  658.636482]  ? zap_class+0x640/0x640
[  658.640206]  ? zap_class+0x640/0x640
[  658.643920]  ? zap_class+0x640/0x640
[  658.647633]  ? __do_page_cache_readahead+0x663/0x810
[  658.652765]  ? find_held_lock+0x36/0x1c0
[  658.656834]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  658.662381]  alloc_pages_current+0x173/0x350
[  658.666799]  __page_cache_alloc+0x38c/0x5c0
[  658.671120]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  658.676051]  ? kasan_check_read+0x11/0x20
[  658.680212]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  658.685956]  ? generic_perform_write+0x6a0/0x6a0
[  658.690713]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  658.696293]  ? check_preemption_disabled+0x48/0x280
[  658.701314]  filemap_fault+0x1595/0x25f0
[  658.705388]  ? __lock_page_or_retry+0xa00/0xa00
[  658.710059]  ? mark_held_locks+0x130/0x130
[  658.714306]  ? filemap_map_pages+0xd6b/0x1a20
[  658.718833]  ? lock_downgrade+0x900/0x900
[  658.722981]  ? check_preemption_disabled+0x48/0x280
[  658.728002]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  658.732944]  ? kasan_check_read+0x11/0x20
[  658.737089]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  658.742362]  ? rcu_softirq_qs+0x20/0x20
[  658.746347]  ? filemap_map_pages+0xd92/0x1a20
[  658.750864]  ? print_usage_bug+0xc0/0xc0
[  658.754930]  ? find_get_entries_tag+0x1400/0x1400
[  658.759774]  ? __kasan_slab_free+0x102/0x150
[  658.764182]  ? kasan_slab_free+0xe/0x10
[  658.768172]  ? kmem_cache_free+0x83/0x290
[  658.772317]  ? __sigqueue_free.part.29+0x74/0x90
[  658.777091]  ? lock_acquire+0x1ed/0x520
[  658.781066]  ? ext4_filemap_fault+0x7a/0xad
[  658.785394]  ? lock_release+0xa00/0xa00
[  658.789378]  ? perf_trace_sched_process_exec+0x860/0x860
[  658.794826]  ? print_usage_bug+0xc0/0xc0
[  658.798889]  ? print_usage_bug+0xc0/0xc0
[  658.802966]  ? down_read+0x8d/0x120
[  658.806599]  ? ext4_filemap_fault+0x7a/0xad
[  658.810919]  ? __down_interruptible+0x700/0x700
[  658.815614]  ext4_filemap_fault+0x82/0xad
[  658.819772]  __do_fault+0x100/0x6b0
[  658.823404]  ? pmd_devmap_trans_unstable+0x220/0x220
[  658.828515]  ? mark_held_locks+0x130/0x130
[  658.832758]  ? mark_held_locks+0x130/0x130
[  658.836994]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  658.842535]  ? rcu_pm_notify+0xc0/0xc0
[  658.846445]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  658.852019]  __handle_mm_fault+0x3ea0/0x5be0
[  658.856466]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  658.861308]  ? _raw_spin_unlock_irq+0x27/0x80
[  658.865802]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  658.870411]  ? trace_hardirqs_on+0xbd/0x310
[  658.874749]  ? kasan_check_read+0x11/0x20
[  658.878893]  ? __set_current_blocked+0xdf/0x120
[  658.883558]  ? trace_hardirqs_off_caller+0x310/0x310
[  658.888690]  ? zap_class+0x640/0x640
[  658.892401]  ? zap_class+0x640/0x640
[  658.896125]  ? find_held_lock+0x36/0x1c0
[  658.900196]  ? handle_mm_fault+0x42a/0xc70
[  658.904432]  ? lock_downgrade+0x900/0x900
[  658.908578]  ? check_preemption_disabled+0x48/0x280
[  658.913610]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  658.918569]  ? kasan_check_read+0x11/0x20
[  658.922730]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  658.928017]  ? rcu_softirq_qs+0x20/0x20
[  658.931992]  ? trace_hardirqs_off_caller+0x310/0x310
[  658.937095]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  658.942653]  ? check_preemption_disabled+0x48/0x280
[  658.947679]  handle_mm_fault+0x54f/0xc70
[  658.951754]  ? __handle_mm_fault+0x5be0/0x5be0
[  658.956345]  ? find_vma+0x34/0x190
[  658.959890]  __do_page_fault+0x5e8/0xe60
[  658.963951]  ? exit_to_usermode_loop+0x1f4/0x380
[  658.968717]  do_page_fault+0xf2/0x7e0
[  658.972529]  ? vmalloc_sync_all+0x30/0x30
[  658.976682]  ? error_entry+0x70/0xd0
[  658.980408]  ? trace_hardirqs_off_caller+0xbb/0x310
[  658.985431]  ? trace_hardirqs_on_caller+0xc0/0x310
[  658.990355]  ? syscall_return_slowpath+0x5e0/0x5e0
[  658.995281]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  659.000136]  ? trace_hardirqs_on_caller+0x310/0x310
[  659.005154]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  659.010605]  ? prepare_exit_to_usermode+0x291/0x3b0
[  659.015632]  ? page_fault+0x8/0x30
[  659.019172]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  659.024029]  ? page_fault+0x8/0x30
[  659.027586]  page_fault+0x1e/0x30
[  659.031034] RIP: 0033:0x45db60
[  659.034252] Code: Bad RIP value.
[  659.037616] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  659.043000] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  659.050267] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  659.057534] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  659.064827] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  659.072096] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  659.079389] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  659.079394] warn_alloc_show_mem: 1 callbacks suppressed
[  659.079401] Mem-Info:
[  659.086239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  659.091621] active_anon:42936 inactive_anon:306 isolated_anon:0
[  659.091621]  active_file:13 inactive_file:13 isolated_file:0
[  659.091621]  unevictable:0 dirty:0 writeback:0 unstable:0
[  659.091621]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  659.091621]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  659.091621]  free:13785 free_pcp:492 free_cma:0
[  659.093996] Call Trace:
[  659.103383] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  659.136157]  dump_stack+0x244/0x39d
[  659.138720] 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
[  659.166309]  ? dump_stack_print_info.cold.1+0x20/0x20
[  659.169908] lowmem_reserve[]: 0 2818 6321 6321
[  659.196020]  warn_alloc.cold.116+0xb7/0x1bd
[  659.201176] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  659.205758]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  659.210065] lowmem_reserve[]: 0 0 3503 3503
[  659.237210]  ? lock_downgrade+0x900/0x900
[  659.242026] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  659.246344]  ? trace_hardirqs_off+0xb8/0x310
[  659.250459] lowmem_reserve[]: 0 0 0 0
[  659.279602]  ? trace_hardirqs_off+0xb8/0x310
[  659.283978] 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
[  659.287790]  __alloc_pages_slowpath+0x2651/0x2de0
[  659.292168] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  659.305710]  ? warn_alloc+0x120/0x120
[  659.310502] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  659.325679]  ? print_usage_bug+0xc0/0xc0
[  659.329476] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  659.344632]  ? warn_alloc+0x120/0x120
[  659.348685] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  659.357507]  ? warn_alloc+0x120/0x120
[  659.361284] 380 total pagecache pages
[  659.369854]  ? print_usage_bug+0xc0/0xc0
[  659.373647] 0 pages in swap cache
[  659.377448]  ? print_usage_bug+0xc0/0xc0
[  659.381484] Swap cache stats: add 0, delete 0, find 0/0
[  659.384923]  ? __lock_acquire+0x62f/0x4c20
[  659.388956] Free swap  = 0kB
[  659.394312]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  659.398520] Total swap = 0kB
[  659.401534]  ? should_fail+0x22d/0xd01
[  659.407045] 1965979 pages RAM
[  659.410057]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  659.413921] 0 pages HighMem/MovableOnly
[  659.417016]  ? __lock_acquire+0x62f/0x4c20
[  659.422091] 342854 pages reserved
[  659.426059]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  659.430269] 0 pages cma reserved
[  659.433712]  ? __lock_acquire+0x62f/0x4c20
[  659.438847] aoe: skb alloc failure
[  659.442146]  ? should_fail+0x22d/0xd01
[  659.442161]  ? find_held_lock+0x36/0x1c0
[  659.446403] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  659.449912]  ? mark_held_locks+0x130/0x130
[  659.453767] syz-fuzzer cpuset=/ mems_allowed=0
[  659.457827]  ? mark_held_locks+0x130/0x130
[  659.481034]  ? zap_class+0x640/0x640
[  659.484779]  ? mark_held_locks+0xc7/0x130
[  659.488939]  ? do_raw_spin_unlock+0xa7/0x330
[  659.493345]  ? zap_class+0x640/0x640
[  659.497059]  ? print_usage_bug+0xc0/0xc0
[  659.501126]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  659.506665]  ? check_preemption_disabled+0x48/0x280
[  659.511707]  ? __lock_is_held+0xb5/0x140
[  659.515787]  __alloc_pages_nodemask+0xad8/0xea0
[  659.520471]  ? zap_class+0x640/0x640
[  659.524190]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  659.529217]  ? find_held_lock+0x36/0x1c0
[  659.533287]  ? ____cache_alloc_node+0x1c7/0x1e0
[  659.537954]  ? lock_downgrade+0x900/0x900
[  659.542112]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  659.547651]  cache_grow_begin+0xa5/0x8c0
[  659.551711]  ? do_raw_spin_unlock+0xa7/0x330
[  659.556131]  fallback_alloc+0x204/0x2e0
[  659.560111]  ____cache_alloc_node+0x1c7/0x1e0
[  659.564611]  kmem_cache_alloc_node+0xe3/0x730
[  659.569105]  ? ipv6_get_ifaddr+0x42e/0x620
[  659.573381]  __alloc_skb+0x119/0x770
[  659.577106]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  659.582389]  ? netdev_alloc_frag+0x1f0/0x1f0
[  659.586795]  ? lock_downgrade+0x900/0x900
[  659.590951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  659.596502]  ? refcount_sub_and_test_checked+0x203/0x310
[  659.601954]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  659.607423]  ? addrconf_rs_timer+0x690/0x690
[  659.611845]  ndisc_alloc_skb+0x144/0x340
[  659.615927]  ndisc_send_rs+0x331/0x6e0
[  659.619823]  addrconf_rs_timer+0x314/0x690
[  659.624067]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  659.628314]  call_timer_fn+0x272/0x920
[  659.632204]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  659.636454]  ? process_timeout+0x40/0x40
[  659.640567]  ? __run_timers+0x7da/0xc70
[  659.644570]  ? _raw_spin_unlock_irq+0x27/0x80
[  659.649076]  ? _raw_spin_unlock_irq+0x27/0x80
[  659.653567]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  659.657815]  ? lockdep_hardirqs_on+0x296/0x5b0
[  659.662396]  ? trace_hardirqs_on+0xbd/0x310
[  659.666732]  ? kasan_check_read+0x11/0x20
[  659.670922]  ? __run_timers+0x7da/0xc70
[  659.674897]  ? trace_hardirqs_off_caller+0x310/0x310
[  659.680007]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  659.684256]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  659.688505]  __run_timers+0x7e5/0xc70
[  659.692333]  ? timer_fixup_init+0x70/0x70
[  659.696479]  ? _raw_spin_unlock_irq+0x27/0x80
[  659.700974]  ? _raw_spin_unlock_irq+0x27/0x80
[  659.705482]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  659.710066]  ? trace_hardirqs_on+0xbd/0x310
[  659.714389]  ? kasan_check_read+0x11/0x20
[  659.718565]  ? finish_task_switch+0x1f4/0x910
[  659.723079]  ? trace_hardirqs_off_caller+0x310/0x310
[  659.728180]  ? compat_start_thread+0x80/0x80
[  659.732615]  ? pvclock_read_flags+0x160/0x160
[  659.737110]  ? __switch_to_asm+0x34/0x70
[  659.741172]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  659.746708]  ? check_preemption_disabled+0x48/0x280
[  659.751752]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  659.757298]  ? rcu_pm_notify+0xc0/0xc0
[  659.761186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  659.766722]  ? check_preemption_disabled+0x48/0x280
[  659.771760]  run_timer_softirq+0x52/0xb0
[  659.775830]  ? rcu_read_lock_sched_held+0x14f/0x180
[  659.780846]  __do_softirq+0x308/0xb7e
[  659.784650]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  659.789416]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  659.794518]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  659.799965]  ? trace_hardirqs_on+0x310/0x310
[  659.804379]  ? schedule+0x108/0x460
[  659.808019]  ? trace_hardirqs_off+0xb8/0x310
[  659.812430]  ? smpboot_thread_fn+0x68b/0xa00
[  659.816838]  ? trace_hardirqs_on+0x310/0x310
[  659.821246]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  659.826788]  ? check_preemption_disabled+0x48/0x280
[  659.831804]  ? takeover_tasklets+0xa90/0xa90
[  659.836215]  run_ksoftirqd+0x5e/0x100
[  659.840019]  smpboot_thread_fn+0x68b/0xa00
[  659.844260]  ? sort_range+0x30/0x30
[  659.847892]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  659.852995]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  659.858533]  ? __kthread_parkme+0xfb/0x1a0
[  659.862782]  ? sort_range+0x30/0x30
[  659.866410]  kthread+0x35a/0x440
[  659.869787]  ? kthread_stop+0x900/0x900
[  659.873778]  ret_from_fork+0x3a/0x50
[  659.877511] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  659.877588] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  659.884523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  659.884529] Call Trace:
[  659.884535]  <IRQ>
[  659.884554]  dump_stack+0x244/0x39d
[  659.884573]  ? dump_stack_print_info.cold.1+0x20/0x20
[  659.891229] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  659.900410]  warn_alloc.cold.116+0xb7/0x1bd
[  659.902960] ksoftirqd/0 cpuset=/ mems_allowed=0
[  659.905107]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  659.937964]  ? lock_downgrade+0x900/0x900
[  659.942120]  ? trace_hardirqs_off+0xb8/0x310
[  659.946536]  ? trace_hardirqs_off+0xb8/0x310
[  659.950957]  __alloc_pages_slowpath+0x2651/0x2de0
[  659.955831]  ? warn_alloc+0x120/0x120
[  659.959637]  ? warn_alloc+0x120/0x120
[  659.963440]  ? __lock_acquire+0x62f/0x4c20
[  659.967674]  ? warn_alloc+0x120/0x120
[  659.971474]  ? print_usage_bug+0xc0/0xc0
[  659.975537]  ? print_usage_bug+0xc0/0xc0
[  659.979599]  ? mark_held_locks+0x130/0x130
[  659.983844]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  659.989387]  ? should_fail+0x22d/0xd01
[  659.993274]  ? zap_class+0x640/0x640
[  659.996996]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  660.002100]  ? __lock_acquire+0x62f/0x4c20
[  660.006337]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  660.011442]  ? should_fail+0x22d/0xd01
[  660.015340]  ? mark_held_locks+0x130/0x130
[  660.019581]  ? mark_held_locks+0x130/0x130
[  660.023819]  ? lock_downgrade+0x900/0x900
[  660.027967]  ? zap_class+0x640/0x640
[  660.031685]  ? zap_class+0x640/0x640
[  660.035399]  ? zap_class+0x640/0x640
[  660.039109]  ? do_raw_spin_unlock+0xa7/0x330
[  660.043518]  ? trace_hardirqs_on+0x310/0x310
[  660.047930]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  660.053471]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  660.059013]  ? check_preemption_disabled+0x48/0x280
[  660.064039]  ? __lock_is_held+0xb5/0x140
[  660.068106]  __alloc_pages_nodemask+0xad8/0xea0
[  660.072776]  ? zap_class+0x640/0x640
[  660.076500]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  660.081531]  ? find_held_lock+0x36/0x1c0
[  660.085601]  ? ____cache_alloc_node+0x1c7/0x1e0
[  660.090304]  ? lock_downgrade+0x900/0x900
[  660.094472]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  660.100031]  cache_grow_begin+0xa5/0x8c0
[  660.104088]  ? do_raw_spin_unlock+0xa7/0x330
[  660.108524]  fallback_alloc+0x204/0x2e0
[  660.112506]  ____cache_alloc_node+0x1c7/0x1e0
[  660.117007]  kmem_cache_alloc_node+0xe3/0x730
[  660.121504]  ? lockdep_hardirqs_on+0x296/0x5b0
[  660.126094]  __alloc_skb+0x119/0x770
[  660.129806]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  660.135180]  ? netdev_alloc_frag+0x1f0/0x1f0
[  660.139598]  ? vprintk_default+0x28/0x30
[  660.143660]  ? vprintk_func+0x85/0x181
[  660.147546]  ? printk+0xa7/0xcf
[  660.150823]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  660.155594]  new_skb+0x26/0x1c0
[  660.158877]  aoecmd_cfg+0x279/0x7f0
[  660.162503]  ? find_held_lock+0x36/0x1c0
[  660.166569]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  660.170898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  660.176445]  ? __lock_is_held+0xb5/0x140
[  660.180520]  discover_timer+0x50/0x60
[  660.184318]  call_timer_fn+0x272/0x920
[  660.188204]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  660.193044]  ? process_timeout+0x40/0x40
[  660.197116]  ? mark_held_locks+0xc7/0x130
[  660.201271]  ? _raw_spin_unlock_irq+0x27/0x80
[  660.205772]  ? _raw_spin_unlock_irq+0x27/0x80
[  660.210274]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  660.215120]  ? lockdep_hardirqs_on+0x296/0x5b0
[  660.219703]  ? trace_hardirqs_on+0xbd/0x310
[  660.224024]  ? kasan_check_read+0x11/0x20
[  660.228173]  ? __run_timers+0x7da/0xc70
[  660.232146]  ? trace_hardirqs_off_caller+0x310/0x310
[  660.237267]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  660.242108]  __run_timers+0x7e5/0xc70
[  660.245923]  ? timer_fixup_init+0x70/0x70
[  660.250073]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  660.255091]  ? zap_class+0x640/0x640
[  660.258813]  ? print_usage_bug+0xc0/0xc0
[  660.262878]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  660.268077]  ? find_held_lock+0x36/0x1c0
[  660.272145]  ? zap_class+0x640/0x640
[  660.275866]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  660.281405]  ? check_preemption_disabled+0x48/0x280
[  660.286430]  ? __lock_is_held+0xb5/0x140
[  660.290492]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  660.296029]  ? check_preemption_disabled+0x48/0x280
[  660.301049]  run_timer_softirq+0x52/0xb0
[  660.305111]  ? rcu_read_lock_sched_held+0x14f/0x180
[  660.310128]  __do_softirq+0x308/0xb7e
[  660.313933]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  660.318428]  ? lock_downgrade+0x900/0x900
[  660.322580]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  660.327693]  ? pvclock_read_flags+0x160/0x160
[  660.332232]  ? lapic_next_event+0x5a/0x90
[  660.336382]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  660.341924]  ? kvm_clock_read+0x18/0x30
[  660.345895]  ? kvm_sched_clock_read+0x9/0x20
[  660.350302]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  660.355841]  ? check_preemption_disabled+0x48/0x280
[  660.360863]  irq_exit+0x17f/0x1c0
[  660.364317]  smp_apic_timer_interrupt+0x1cb/0x760
[  660.369161]  ? smp_reschedule_interrupt+0x109/0x650
[  660.374195]  ? smp_call_function_single_interrupt+0x650/0x650
[  660.380079]  ? interrupt_entry+0xb5/0xc0
[  660.384160]  ? trace_hardirqs_off_caller+0xbb/0x310
[  660.389174]  ? trace_hardirqs_off_caller+0xbb/0x310
[  660.394193]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  660.399033]  ? trace_hardirqs_on_caller+0x310/0x310
[  660.404045]  ? trace_hardirqs_on_caller+0x310/0x310
[  660.409064]  ? task_prio+0x50/0x50
[  660.412602]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  660.418138]  ? check_preemption_disabled+0x48/0x280
[  660.423171]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  660.428025]  apic_timer_interrupt+0xf/0x20
[  660.432250]  </IRQ>
[  660.434492] RIP: 0010:dump_stack+0x358/0x39d
[  660.438900] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  660.457798] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  660.465515] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  660.472785] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  660.480051] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  660.487314] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  660.494579] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  660.501864]  ? dump_stack+0x34f/0x39d
[  660.505696]  ? dump_stack_print_info.cold.1+0x20/0x20
[  660.510890]  ? mark_held_locks+0x130/0x130
[  660.515123]  ? mark_held_locks+0x130/0x130
[  660.519359]  dump_header+0x27b/0xf72
[  660.523087]  ? pagefault_out_of_memory+0x197/0x197
[  660.528025]  ? __lock_acquire+0x62f/0x4c20
[  660.532282]  ? percpu_ref_get_many+0x240/0x240
[  660.536869]  ? print_usage_bug+0xc0/0xc0
[  660.540951]  ? zap_class+0x640/0x640
[  660.544670]  ? print_usage_bug+0xc0/0xc0
[  660.548734]  ? print_usage_bug+0xc0/0xc0
[  660.552842]  ? zap_class+0x640/0x640
[  660.556725]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  660.562305]  ? find_held_lock+0x36/0x1c0
[  660.566375]  ? mark_held_locks+0xc7/0x130
[  660.570529]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  660.575630]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  660.580734]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  660.585327]  ? trace_hardirqs_on+0xbd/0x310
[  660.589646]  ? kasan_check_read+0x11/0x20
[  660.593794]  ? ___ratelimit+0x3b4/0x672
[  660.597776]  ? trace_hardirqs_off_caller+0x310/0x310
[  660.602880]  ? trace_hardirqs_on+0x310/0x310
[  660.607292]  ? lock_downgrade+0x900/0x900
[  660.611446]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  660.616546]  ? ___ratelimit+0x3b9/0x672
[  660.620539]  ? idr_get_free+0xf70/0xf70
[  660.624545]  ? find_held_lock+0x36/0x1c0
[  660.628619]  oom_kill_process.cold.27+0x10/0x903
[  660.633376]  ? zap_class+0x640/0x640
[  660.637094]  ? check_preemption_disabled+0x48/0x280
[  660.642125]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  660.647054]  ? kasan_check_read+0x11/0x20
[  660.651218]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  660.656494]  ? oom_evaluate_task+0x540/0x540
[  660.660905]  ? find_held_lock+0x36/0x1c0
[  660.664972]  ? out_of_memory+0x974/0x1430
[  660.669121]  ? lock_downgrade+0x900/0x900
[  660.673273]  ? check_preemption_disabled+0x48/0x280
[  660.678289]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  660.685622]  ? kasan_check_read+0x11/0x20
[  660.689778]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  660.695054]  ? rcu_softirq_qs+0x20/0x20
[  660.699035]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  660.704571]  ? oom_evaluate_task+0x302/0x540
[  660.708995]  out_of_memory+0xa84/0x1430
[  660.712979]  ? oom_killer_disable+0x3a0/0x3a0
[  660.717479]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  660.722411]  ? __ww_mutex_check_waiters+0x160/0x160
[  660.727435]  __alloc_pages_slowpath+0x232c/0x2de0
[  660.732360]  ? warn_alloc+0x120/0x120
[  660.736161]  ? mark_held_locks+0x130/0x130
[  660.740401]  ? find_get_entry+0xaae/0x1120
[  660.744646]  ? filemap_map_pages+0x1a20/0x1a20
[  660.749246]  ? zap_class+0x640/0x640
[  660.752979]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  660.758518]  ? check_preemption_disabled+0x48/0x280
[  660.763537]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  660.769071]  ? should_fail+0x22d/0xd01
[  660.772964]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  660.778072]  ? zap_class+0x640/0x640
[  660.781818]  ? __lock_is_held+0xb5/0x140
[  660.785891]  ? mark_held_locks+0x130/0x130
[  660.790143]  ? lock_release+0xa00/0xa00
[  660.794123]  ? perf_trace_sched_process_exec+0x860/0x860
[  660.799573]  ? xa_load+0x2ba/0x460
[  660.803113]  ? lock_downgrade+0x900/0x900
[  660.807272]  ? __might_sleep+0x95/0x190
[  660.811254]  __alloc_pages_nodemask+0xad8/0xea0
[  660.815936]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  660.820954]  ? __page_cache_alloc+0x191/0x5c0
[  660.825447]  ? xa_load+0x2e1/0x460
[  660.828990]  ? xa_clear_mark+0x40/0x40
[  660.832881]  ? zap_class+0x640/0x640
[  660.836603]  ? zap_class+0x640/0x640
[  660.840342]  ? zap_class+0x640/0x640
[  660.844072]  ? __do_page_cache_readahead+0x663/0x810
[  660.849184]  ? find_held_lock+0x36/0x1c0
[  660.853280]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  660.858823]  alloc_pages_current+0x173/0x350
[  660.863240]  __page_cache_alloc+0x38c/0x5c0
[  660.867562]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  660.872488]  ? kasan_check_read+0x11/0x20
[  660.876638]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  660.881917]  ? generic_perform_write+0x6a0/0x6a0
[  660.886677]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  660.892215]  ? check_preemption_disabled+0x48/0x280
[  660.897242]  filemap_fault+0x1595/0x25f0
[  660.901321]  ? __lock_page_or_retry+0xa00/0xa00
[  660.905996]  ? mark_held_locks+0x130/0x130
[  660.910243]  ? filemap_map_pages+0xd6b/0x1a20
[  660.914754]  ? lock_downgrade+0x900/0x900
[  660.918907]  ? check_preemption_disabled+0x48/0x280
[  660.923925]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  660.928852]  ? kasan_check_read+0x11/0x20
[  660.933003]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  660.938281]  ? rcu_softirq_qs+0x20/0x20
[  660.942275]  ? filemap_map_pages+0xd92/0x1a20
[  660.946780]  ? print_usage_bug+0xc0/0xc0
[  660.950852]  ? find_get_entries_tag+0x1400/0x1400
[  660.955698]  ? __kasan_slab_free+0x102/0x150
[  660.960106]  ? kasan_slab_free+0xe/0x10
[  660.964082]  ? kmem_cache_free+0x83/0x290
[  660.968227]  ? __sigqueue_free.part.29+0x74/0x90
[  660.973000]  ? lock_acquire+0x1ed/0x520
[  660.976972]  ? ext4_filemap_fault+0x7a/0xad
[  660.981307]  ? lock_release+0xa00/0xa00
[  660.985287]  ? perf_trace_sched_process_exec+0x860/0x860
[  660.990738]  ? print_usage_bug+0xc0/0xc0
[  660.994812]  ? print_usage_bug+0xc0/0xc0
[  660.998886]  ? down_read+0x8d/0x120
[  661.002509]  ? ext4_filemap_fault+0x7a/0xad
[  661.006828]  ? __down_interruptible+0x700/0x700
[  661.011510]  ext4_filemap_fault+0x82/0xad
[  661.015691]  __do_fault+0x100/0x6b0
[  661.019321]  ? pmd_devmap_trans_unstable+0x220/0x220
[  661.024431]  ? mark_held_locks+0x130/0x130
[  661.028667]  ? mark_held_locks+0x130/0x130
[  661.032908]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  661.038445]  ? rcu_pm_notify+0xc0/0xc0
[  661.042353]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  661.047892]  __handle_mm_fault+0x3ea0/0x5be0
[  661.052327]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  661.057169]  ? _raw_spin_unlock_irq+0x27/0x80
[  661.061663]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  661.066260]  ? trace_hardirqs_on+0xbd/0x310
[  661.070632]  ? kasan_check_read+0x11/0x20
[  661.074778]  ? __set_current_blocked+0xdf/0x120
[  661.079454]  ? trace_hardirqs_off_caller+0x310/0x310
[  661.084567]  ? zap_class+0x640/0x640
[  661.088282]  ? zap_class+0x640/0x640
[  661.092002]  ? find_held_lock+0x36/0x1c0
[  661.096070]  ? handle_mm_fault+0x42a/0xc70
[  661.100309]  ? lock_downgrade+0x900/0x900
[  661.104488]  ? check_preemption_disabled+0x48/0x280
[  661.109508]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  661.114459]  ? kasan_check_read+0x11/0x20
[  661.118623]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  661.123898]  ? rcu_softirq_qs+0x20/0x20
[  661.127890]  ? trace_hardirqs_off_caller+0x310/0x310
[  661.132999]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  661.138541]  ? check_preemption_disabled+0x48/0x280
[  661.143563]  handle_mm_fault+0x54f/0xc70
[  661.147656]  ? __handle_mm_fault+0x5be0/0x5be0
[  661.152241]  ? find_vma+0x34/0x190
[  661.155795]  __do_page_fault+0x5e8/0xe60
[  661.159863]  ? exit_to_usermode_loop+0x1f4/0x380
[  661.164627]  do_page_fault+0xf2/0x7e0
[  661.168428]  ? vmalloc_sync_all+0x30/0x30
[  661.172576]  ? error_entry+0x70/0xd0
[  661.176303]  ? trace_hardirqs_off_caller+0xbb/0x310
[  661.181344]  ? trace_hardirqs_on_caller+0xc0/0x310
[  661.186288]  ? syscall_return_slowpath+0x5e0/0x5e0
[  661.191226]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  661.196067]  ? trace_hardirqs_on_caller+0x310/0x310
[  661.201083]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  661.206573]  ? prepare_exit_to_usermode+0x291/0x3b0
[  661.211589]  ? page_fault+0x8/0x30
[  661.215132]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  661.220005]  ? page_fault+0x8/0x30
[  661.223573]  page_fault+0x1e/0x30
[  661.227041] RIP: 0033:0x45db60
[  661.230241] Code: Bad RIP value.
[  661.233605] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  661.238961] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  661.246224] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  661.253488] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  661.260760] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  661.268026] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  661.275309] warn_alloc_show_mem: 1 callbacks suppressed
[  661.275321] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  661.275323] Mem-Info:
[  661.275354] active_anon:42936 inactive_anon:306 isolated_anon:0
[  661.275354]  active_file:13 inactive_file:13 isolated_file:0
[  661.275354]  unevictable:0 dirty:0 writeback:0 unstable:0
[  661.275354]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  661.275354]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  661.275354]  free:13785 free_pcp:492 free_cma:0
[  661.280694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  661.287540] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  661.289947] Call Trace:
[  661.322727] 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
[  661.332110]  dump_stack+0x244/0x39d
[  661.359660] lowmem_reserve[]: 0 2818 6321 6321
[  661.362246]  ? dump_stack_print_info.cold.1+0x20/0x20
[  661.388338] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  661.391974]  warn_alloc.cold.116+0xb7/0x1bd
[  661.396511] lowmem_reserve[]: 0 0 3503 3503
[  661.401695]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  661.428820] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  661.433135]  ? lock_downgrade+0x900/0x900
[  661.437429] lowmem_reserve[]: 0 0 0 0
[  661.442293]  ? trace_hardirqs_off+0xb8/0x310
[  661.471428] 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
[  661.475573]  ? trace_hardirqs_off+0xb8/0x310
[  661.479345] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  661.483773]  __alloc_pages_slowpath+0x2651/0x2de0
[  661.497249] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  661.501686]  ? warn_alloc+0x120/0x120
[  661.516831] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  661.521663]  ? print_usage_bug+0xc0/0xc0
[  661.536817] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  661.540601]  ? warn_alloc+0x120/0x120
[  661.549409] 380 total pagecache pages
[  661.553459]  ? warn_alloc+0x120/0x120
[  661.562014] 0 pages in swap cache
[  661.565802]  ? print_usage_bug+0xc0/0xc0
[  661.569576] Swap cache stats: add 0, delete 0, find 0/0
[  661.573367]  ? print_usage_bug+0xc0/0xc0
[  661.576807] Free swap  = 0kB
[  661.580858]  ? print_usage_bug+0xc0/0xc0
[  661.586206] Total swap = 0kB
[  661.590256]  ? __lock_acquire+0x62f/0x4c20
[  661.593255] 1965979 pages RAM
[  661.597314]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  661.600305] 0 pages HighMem/MovableOnly
[  661.604532]  ? should_fail+0x22d/0xd01
[  661.607611] 342854 pages reserved
[  661.613142]  ? __lock_acquire+0x62f/0x4c20
[  661.617093] 0 pages cma reserved
[  661.620973]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  661.624459] aoe: skb alloc failure
[  661.628632]  ? __lock_acquire+0x62f/0x4c20
[  661.632039] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  661.637074]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  661.640589] syz-fuzzer cpuset=/ mems_allowed=0
[  661.644818]  ? __lock_acquire+0x62f/0x4c20
[  661.668892]  ? should_fail+0x22d/0xd01
[  661.672793]  ? mark_held_locks+0x130/0x130
[  661.677033]  ? mark_held_locks+0x130/0x130
[  661.681269]  ? lock_downgrade+0x900/0x900
[  661.685424]  ? zap_class+0x640/0x640
[  661.689134]  ? print_usage_bug+0xc0/0xc0
[  661.693201]  ? trace_hardirqs_off+0xb8/0x310
[  661.697609]  ? kasan_check_read+0x11/0x20
[  661.701774]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  661.707310]  ? check_preemption_disabled+0x48/0x280
[  661.712352]  ? __lock_is_held+0xb5/0x140
[  661.716447]  __alloc_pages_nodemask+0xad8/0xea0
[  661.721116]  ? zap_class+0x640/0x640
[  661.724838]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  661.729868]  ? find_held_lock+0x36/0x1c0
[  661.733939]  ? ____cache_alloc_node+0x1c7/0x1e0
[  661.738611]  ? lock_downgrade+0x900/0x900
[  661.742779]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  661.748326]  cache_grow_begin+0xa5/0x8c0
[  661.752398]  ? do_raw_spin_unlock+0xa7/0x330
[  661.756817]  fallback_alloc+0x204/0x2e0
[  661.760817]  ____cache_alloc_node+0x1c7/0x1e0
[  661.765316]  kmem_cache_alloc_node+0xe3/0x730
[  661.769817]  ? ipv6_get_ifaddr+0x42e/0x620
[  661.774062]  __alloc_skb+0x119/0x770
[  661.777783]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  661.783064]  ? netdev_alloc_frag+0x1f0/0x1f0
[  661.787471]  ? lock_downgrade+0x900/0x900
[  661.791628]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  661.797181]  ? refcount_sub_and_test_checked+0x203/0x310
[  661.802631]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  661.808086]  ? addrconf_rs_timer+0x690/0x690
[  661.812509]  ndisc_alloc_skb+0x144/0x340
[  661.816579]  ndisc_send_rs+0x331/0x6e0
[  661.820469]  addrconf_rs_timer+0x314/0x690
[  661.824747]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  661.828998]  call_timer_fn+0x272/0x920
[  661.832883]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  661.837120]  ? process_timeout+0x40/0x40
[  661.841186]  ? __run_timers+0x7da/0xc70
[  661.845166]  ? _raw_spin_unlock_irq+0x27/0x80
[  661.849663]  ? _raw_spin_unlock_irq+0x27/0x80
[  661.854156]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  661.858405]  ? lockdep_hardirqs_on+0x296/0x5b0
[  661.862992]  ? trace_hardirqs_on+0xbd/0x310
[  661.867316]  ? kasan_check_read+0x11/0x20
[  661.871500]  ? __run_timers+0x7da/0xc70
[  661.875473]  ? trace_hardirqs_off_caller+0x310/0x310
[  661.880581]  ? __queue_work+0x1440/0x1440
[  661.884731]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  661.888988]  __run_timers+0x7e5/0xc70
[  661.892810]  ? timer_fixup_init+0x70/0x70
[  661.896989]  ? _raw_spin_unlock_irq+0x27/0x80
[  661.901496]  ? _raw_spin_unlock_irq+0x27/0x80
[  661.906022]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  661.910608]  ? trace_hardirqs_on+0xbd/0x310
[  661.914930]  ? kasan_check_read+0x11/0x20
[  661.919079]  ? finish_task_switch+0x1f4/0x910
[  661.923589]  ? trace_hardirqs_off_caller+0x310/0x310
[  661.928706]  ? compat_start_thread+0x80/0x80
[  661.933136]  ? pvclock_read_flags+0x160/0x160
[  661.937628]  ? __switch_to_asm+0x34/0x70
[  661.941695]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  661.947235]  ? check_preemption_disabled+0x48/0x280
[  661.952265]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  661.957805]  ? rcu_pm_notify+0xc0/0xc0
[  661.961691]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  661.967245]  ? check_preemption_disabled+0x48/0x280
[  661.972264]  run_timer_softirq+0x52/0xb0
[  661.976324]  ? rcu_read_lock_sched_held+0x14f/0x180
[  661.981340]  __do_softirq+0x308/0xb7e
[  661.985144]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  661.989907]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  661.995012]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  662.000462]  ? trace_hardirqs_on+0x310/0x310
[  662.004880]  ? schedule+0x108/0x460
[  662.008532]  ? trace_hardirqs_off+0xb8/0x310
[  662.012945]  ? smpboot_thread_fn+0x68b/0xa00
[  662.017352]  ? trace_hardirqs_on+0x310/0x310
[  662.021773]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  662.027312]  ? check_preemption_disabled+0x48/0x280
[  662.032328]  ? takeover_tasklets+0xa90/0xa90
[  662.036738]  run_ksoftirqd+0x5e/0x100
[  662.040550]  smpboot_thread_fn+0x68b/0xa00
[  662.044795]  ? sort_range+0x30/0x30
[  662.048422]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  662.053523]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  662.059064]  ? __kthread_parkme+0xfb/0x1a0
[  662.063317]  ? sort_range+0x30/0x30
[  662.066940]  kthread+0x35a/0x440
[  662.070307]  ? kthread_stop+0x900/0x900
[  662.074285]  ret_from_fork+0x3a/0x50
[  662.078016] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  662.078091] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  662.085030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  662.085035] Call Trace:
[  662.085042]  <IRQ>
[  662.085060]  dump_stack+0x244/0x39d
[  662.085079]  ? dump_stack_print_info.cold.1+0x20/0x20
[  662.091640] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  662.100912]  warn_alloc.cold.116+0xb7/0x1bd
[  662.103462] ksoftirqd/0 cpuset=/ mems_allowed=0
[  662.105608]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  662.138481]  ? lock_downgrade+0x900/0x900
[  662.142637]  ? trace_hardirqs_off+0xb8/0x310
[  662.147050]  ? trace_hardirqs_off+0xb8/0x310
[  662.151466]  __alloc_pages_slowpath+0x2651/0x2de0
[  662.156340]  ? warn_alloc+0x120/0x120
[  662.160147]  ? warn_alloc+0x120/0x120
[  662.163951]  ? warn_alloc+0x120/0x120
[  662.167760]  ? print_usage_bug+0xc0/0xc0
[  662.171825]  ? print_usage_bug+0xc0/0xc0
[  662.175889]  ? ktime_get+0x2c1/0x400
[  662.179608]  ? check_preemption_disabled+0x48/0x280
[  662.184628]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  662.189126]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  662.194663]  ? should_fail+0x22d/0xd01
[  662.198553]  ? kasan_check_read+0x11/0x20
[  662.202704]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  662.207809]  ? __lock_acquire+0x62f/0x4c20
[  662.212047]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  662.217147]  ? should_fail+0x22d/0xd01
[  662.221037]  ? print_usage_bug+0xc0/0xc0
[  662.225109]  ? mark_held_locks+0x130/0x130
[  662.229345]  ? mark_held_locks+0x130/0x130
[  662.233585]  ? check_preemption_disabled+0x48/0x280
[  662.238612]  ? zap_class+0x640/0x640
[  662.242328]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  662.247100]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  662.252656]  ? check_preemption_disabled+0x48/0x280
[  662.257683]  ? __lock_is_held+0xb5/0x140
[  662.261772]  __alloc_pages_nodemask+0xad8/0xea0
[  662.266458]  ? zap_class+0x640/0x640
[  662.270178]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  662.275204]  ? find_held_lock+0x36/0x1c0
[  662.279278]  ? ____cache_alloc_node+0x1c7/0x1e0
[  662.283954]  ? lock_downgrade+0x900/0x900
[  662.288112]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  662.293654]  cache_grow_begin+0xa5/0x8c0
[  662.297715]  ? do_raw_spin_unlock+0xa7/0x330
[  662.302136]  fallback_alloc+0x204/0x2e0
[  662.306116]  ____cache_alloc_node+0x1c7/0x1e0
[  662.310616]  kmem_cache_alloc_node+0xe3/0x730
[  662.315114]  ? lockdep_hardirqs_on+0x296/0x5b0
[  662.319710]  __alloc_skb+0x119/0x770
[  662.323427]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  662.328798]  ? netdev_alloc_frag+0x1f0/0x1f0
[  662.333244]  ? vprintk_default+0x28/0x30
[  662.337324]  ? vprintk_func+0x85/0x181
[  662.341211]  ? printk+0xa7/0xcf
[  662.344490]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  662.349253]  new_skb+0x26/0x1c0
[  662.352538]  aoecmd_cfg+0x279/0x7f0
[  662.356168]  ? find_held_lock+0x36/0x1c0
[  662.360230]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  662.364563]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  662.370117]  ? __lock_is_held+0xb5/0x140
[  662.374193]  discover_timer+0x50/0x60
[  662.377997]  call_timer_fn+0x272/0x920
[  662.381884]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  662.386730]  ? process_timeout+0x40/0x40
[  662.390814]  ? mark_held_locks+0xc7/0x130
[  662.394968]  ? _raw_spin_unlock_irq+0x27/0x80
[  662.399465]  ? _raw_spin_unlock_irq+0x27/0x80
[  662.403958]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  662.408819]  ? lockdep_hardirqs_on+0x296/0x5b0
[  662.413408]  ? trace_hardirqs_on+0xbd/0x310
[  662.417730]  ? kasan_check_read+0x11/0x20
[  662.421892]  ? __run_timers+0x7da/0xc70
[  662.425867]  ? trace_hardirqs_off_caller+0x310/0x310
[  662.430984]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  662.435829]  __run_timers+0x7e5/0xc70
[  662.439638]  ? timer_fixup_init+0x70/0x70
[  662.443793]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  662.448814]  ? zap_class+0x640/0x640
[  662.452536]  ? print_usage_bug+0xc0/0xc0
[  662.456601]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  662.461799]  ? find_held_lock+0x36/0x1c0
[  662.465867]  ? zap_class+0x640/0x640
[  662.469587]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  662.475131]  ? check_preemption_disabled+0x48/0x280
[  662.480158]  ? __lock_is_held+0xb5/0x140
[  662.484219]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  662.489764]  ? check_preemption_disabled+0x48/0x280
[  662.494790]  run_timer_softirq+0x52/0xb0
[  662.498857]  ? rcu_read_lock_sched_held+0x14f/0x180
[  662.503882]  __do_softirq+0x308/0xb7e
[  662.507691]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  662.512185]  ? lock_downgrade+0x900/0x900
[  662.516340]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  662.521458]  ? pvclock_read_flags+0x160/0x160
[  662.525960]  ? lapic_next_event+0x5a/0x90
[  662.530112]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  662.535654]  ? kvm_clock_read+0x18/0x30
[  662.539628]  ? kvm_sched_clock_read+0x9/0x20
[  662.544043]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  662.549582]  ? check_preemption_disabled+0x48/0x280
[  662.554780]  irq_exit+0x17f/0x1c0
[  662.558244]  smp_apic_timer_interrupt+0x1cb/0x760
[  662.563091]  ? smp_reschedule_interrupt+0x109/0x650
[  662.568111]  ? smp_call_function_single_interrupt+0x650/0x650
[  662.573995]  ? interrupt_entry+0xb5/0xc0
[  662.578059]  ? trace_hardirqs_off_caller+0xbb/0x310
[  662.583076]  ? trace_hardirqs_off_caller+0xbb/0x310
[  662.588094]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  662.592938]  ? trace_hardirqs_on_caller+0x310/0x310
[  662.597956]  ? trace_hardirqs_on_caller+0x310/0x310
[  662.602973]  ? task_prio+0x50/0x50
[  662.606519]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  662.612059]  ? check_preemption_disabled+0x48/0x280
[  662.617082]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  662.621939]  apic_timer_interrupt+0xf/0x20
[  662.626168]  </IRQ>
[  662.628407] RIP: 0010:dump_stack+0x358/0x39d
[  662.632817] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  662.651718] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  662.659434] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  662.666703] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  662.673969] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  662.681261] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  662.689059] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  662.696350]  ? dump_stack+0x34f/0x39d
[  662.700169]  ? dump_stack_print_info.cold.1+0x20/0x20
[  662.705364]  ? mark_held_locks+0x130/0x130
[  662.709597]  ? mark_held_locks+0x130/0x130
[  662.713857]  dump_header+0x27b/0xf72
[  662.717585]  ? pagefault_out_of_memory+0x197/0x197
[  662.722521]  ? __lock_acquire+0x62f/0x4c20
[  662.726768]  ? percpu_ref_get_many+0x240/0x240
[  662.731353]  ? print_usage_bug+0xc0/0xc0
[  662.735422]  ? zap_class+0x640/0x640
[  662.739138]  ? print_usage_bug+0xc0/0xc0
[  662.743195]  ? print_usage_bug+0xc0/0xc0
[  662.747275]  ? zap_class+0x640/0x640
[  662.750993]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  662.756536]  ? find_held_lock+0x36/0x1c0
[  662.760607]  ? mark_held_locks+0xc7/0x130
[  662.764766]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  662.769871]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  662.774975]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  662.779561]  ? trace_hardirqs_on+0xbd/0x310
[  662.783882]  ? kasan_check_read+0x11/0x20
[  662.788031]  ? ___ratelimit+0x3b4/0x672
[  662.792005]  ? trace_hardirqs_off_caller+0x310/0x310
[  662.797117]  ? trace_hardirqs_on+0x310/0x310
[  662.801525]  ? lock_downgrade+0x900/0x900
[  662.805679]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  662.810782]  ? ___ratelimit+0x3b9/0x672
[  662.814767]  ? idr_get_free+0xf70/0xf70
[  662.818750]  ? find_held_lock+0x36/0x1c0
[  662.822839]  oom_kill_process.cold.27+0x10/0x903
[  662.827595]  ? zap_class+0x640/0x640
[  662.831309]  ? check_preemption_disabled+0x48/0x280
[  662.836329]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  662.841262]  ? kasan_check_read+0x11/0x20
[  662.845417]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  662.850697]  ? oom_evaluate_task+0x540/0x540
[  662.855112]  ? find_held_lock+0x36/0x1c0
[  662.859185]  ? out_of_memory+0x974/0x1430
[  662.863334]  ? lock_downgrade+0x900/0x900
[  662.867479]  ? check_preemption_disabled+0x48/0x280
[  662.872499]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  662.877425]  ? kasan_check_read+0x11/0x20
[  662.881576]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  662.886853]  ? rcu_softirq_qs+0x20/0x20
[  662.890837]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  662.896371]  ? oom_evaluate_task+0x302/0x540
[  662.900801]  out_of_memory+0xa84/0x1430
[  662.904805]  ? oom_killer_disable+0x3a0/0x3a0
[  662.909305]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  662.914241]  ? __ww_mutex_check_waiters+0x160/0x160
[  662.919280]  __alloc_pages_slowpath+0x232c/0x2de0
[  662.924152]  ? warn_alloc+0x120/0x120
[  662.927956]  ? mark_held_locks+0x130/0x130
[  662.932195]  ? find_get_entry+0xaae/0x1120
[  662.936441]  ? filemap_map_pages+0x1a20/0x1a20
[  662.941032]  ? zap_class+0x640/0x640
[  662.944759]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  662.950303]  ? check_preemption_disabled+0x48/0x280
[  662.955317]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  662.960852]  ? should_fail+0x22d/0xd01
[  662.964752]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  662.969859]  ? zap_class+0x640/0x640
[  662.973603]  ? __lock_is_held+0xb5/0x140
[  662.977673]  ? mark_held_locks+0x130/0x130
[  662.981916]  ? lock_release+0xa00/0xa00
[  662.985896]  ? perf_trace_sched_process_exec+0x860/0x860
[  662.991347]  ? xa_load+0x2ba/0x460
[  662.994893]  ? lock_downgrade+0x900/0x900
[  662.999047]  ? __might_sleep+0x95/0x190
[  663.003025]  __alloc_pages_nodemask+0xad8/0xea0
[  663.007703]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  663.012722]  ? __page_cache_alloc+0x191/0x5c0
[  663.017222]  ? xa_load+0x2e1/0x460
[  663.020769]  ? xa_clear_mark+0x40/0x40
[  663.024663]  ? zap_class+0x640/0x640
[  663.028402]  ? zap_class+0x640/0x640
[  663.032111]  ? zap_class+0x640/0x640
[  663.035828]  ? __do_page_cache_readahead+0x663/0x810
[  663.040937]  ? find_held_lock+0x36/0x1c0
[  663.045008]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  663.050564]  alloc_pages_current+0x173/0x350
[  663.054979]  __page_cache_alloc+0x38c/0x5c0
[  663.059297]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  663.064223]  ? kasan_check_read+0x11/0x20
[  663.068374]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  663.073653]  ? generic_perform_write+0x6a0/0x6a0
[  663.078409]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  663.083949]  ? check_preemption_disabled+0x48/0x280
[  663.088972]  filemap_fault+0x1595/0x25f0
[  663.093044]  ? __lock_page_or_retry+0xa00/0xa00
[  663.097715]  ? mark_held_locks+0x130/0x130
[  663.101981]  ? filemap_map_pages+0xd6b/0x1a20
[  663.106481]  ? lock_downgrade+0x900/0x900
[  663.110627]  ? check_preemption_disabled+0x48/0x280
[  663.115650]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  663.120578]  ? kasan_check_read+0x11/0x20
[  663.124723]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  663.130008]  ? rcu_softirq_qs+0x20/0x20
[  663.133996]  ? filemap_map_pages+0xd92/0x1a20
[  663.138495]  ? print_usage_bug+0xc0/0xc0
[  663.142561]  ? find_get_entries_tag+0x1400/0x1400
[  663.147400]  ? __kasan_slab_free+0x102/0x150
[  663.151808]  ? kasan_slab_free+0xe/0x10
[  663.155798]  ? kmem_cache_free+0x83/0x290
[  663.159944]  ? __sigqueue_free.part.29+0x74/0x90
[  663.164721]  ? lock_acquire+0x1ed/0x520
[  663.168704]  ? ext4_filemap_fault+0x7a/0xad
[  663.173036]  ? lock_release+0xa00/0xa00
[  663.177010]  ? perf_trace_sched_process_exec+0x860/0x860
[  663.182459]  ? print_usage_bug+0xc0/0xc0
[  663.186523]  ? print_usage_bug+0xc0/0xc0
[  663.190594]  ? down_read+0x8d/0x120
[  663.194217]  ? ext4_filemap_fault+0x7a/0xad
[  663.198537]  ? __down_interruptible+0x700/0x700
[  663.203215]  ext4_filemap_fault+0x82/0xad
[  663.207367]  __do_fault+0x100/0x6b0
[  663.211002]  ? pmd_devmap_trans_unstable+0x220/0x220
[  663.216111]  ? mark_held_locks+0x130/0x130
[  663.220349]  ? mark_held_locks+0x130/0x130
[  663.224585]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  663.230124]  ? rcu_pm_notify+0xc0/0xc0
[  663.234019]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  663.239569]  __handle_mm_fault+0x3ea0/0x5be0
[  663.243986]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  663.248827]  ? _raw_spin_unlock_irq+0x27/0x80
[  663.253321]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  663.257903]  ? trace_hardirqs_on+0xbd/0x310
[  663.262223]  ? kasan_check_read+0x11/0x20
[  663.266369]  ? __set_current_blocked+0xdf/0x120
[  663.271046]  ? trace_hardirqs_off_caller+0x310/0x310
[  663.276162]  ? zap_class+0x640/0x640
[  663.279874]  ? zap_class+0x640/0x640
[  663.283594]  ? find_held_lock+0x36/0x1c0
[  663.287669]  ? handle_mm_fault+0x42a/0xc70
[  663.291903]  ? lock_downgrade+0x900/0x900
[  663.296491]  ? check_preemption_disabled+0x48/0x280
[  663.301511]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  663.306440]  ? kasan_check_read+0x11/0x20
[  663.310589]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  663.315873]  ? rcu_softirq_qs+0x20/0x20
[  663.319851]  ? trace_hardirqs_off_caller+0x310/0x310
[  663.324954]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  663.330496]  ? check_preemption_disabled+0x48/0x280
[  663.335524]  handle_mm_fault+0x54f/0xc70
[  663.339594]  ? __handle_mm_fault+0x5be0/0x5be0
[  663.344181]  ? find_vma+0x34/0x190
[  663.347727]  __do_page_fault+0x5e8/0xe60
[  663.351815]  ? exit_to_usermode_loop+0x1f4/0x380
[  663.356582]  do_page_fault+0xf2/0x7e0
[  663.360383]  ? vmalloc_sync_all+0x30/0x30
[  663.364538]  ? error_entry+0x70/0xd0
[  663.368281]  ? trace_hardirqs_off_caller+0xbb/0x310
[  663.373299]  ? trace_hardirqs_on_caller+0xc0/0x310
[  663.378232]  ? syscall_return_slowpath+0x5e0/0x5e0
[  663.383167]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  663.388010]  ? trace_hardirqs_on_caller+0x310/0x310
[  663.393024]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  663.398481]  ? prepare_exit_to_usermode+0x291/0x3b0
[  663.403513]  ? page_fault+0x8/0x30
[  663.407060]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  663.411910]  ? page_fault+0x8/0x30
[  663.415453]  page_fault+0x1e/0x30
[  663.418903] RIP: 0033:0x45db60
[  663.422102] Code: Bad RIP value.
[  663.425462] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  663.430818] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  663.438082] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  663.445348] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  663.452617] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  663.459880] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  663.467172] warn_alloc_show_mem: 1 callbacks suppressed
[  663.467184] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  663.467186] Mem-Info:
[  663.467217] active_anon:42936 inactive_anon:306 isolated_anon:0
[  663.467217]  active_file:13 inactive_file:13 isolated_file:0
[  663.467217]  unevictable:0 dirty:0 writeback:0 unstable:0
[  663.467217]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  663.467217]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  663.467217]  free:13785 free_pcp:492 free_cma:0
[  663.472555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  663.472564] Call Trace:
[  663.479414] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  663.481826]  dump_stack+0x244/0x39d
[  663.514595] 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
[  663.523956]  ? dump_stack_print_info.cold.1+0x20/0x20
[  663.526503] lowmem_reserve[]: 0 2818 6321 6321
[  663.554095]  warn_alloc.cold.116+0xb7/0x1bd
[  663.557690] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  663.583797]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  663.588963] lowmem_reserve[]: 0 0 3503 3503
[  663.593539]  ? lock_downgrade+0x900/0x900
[  663.597834] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  663.625005]  ? trace_hardirqs_off+0xb8/0x310
[  663.629814] lowmem_reserve[]: 0 0 0 0
[  663.634143]  ? trace_hardirqs_off+0xb8/0x310
[  663.638260] 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
[  663.667419]  __alloc_pages_slowpath+0x2651/0x2de0
[  663.671804] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  663.675620]  ? warn_alloc+0x120/0x120
[  663.679978] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  663.693499]  ? print_usage_bug+0xc0/0xc0
[  663.698322] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  663.713479]  ? warn_alloc+0x120/0x120
[  663.717262] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  663.732419]  ? warn_alloc+0x120/0x120
[  663.736458] 380 total pagecache pages
[  663.745314]  ? print_usage_bug+0xc0/0xc0
[  663.749101] 0 pages in swap cache
[  663.757663]  ? print_usage_bug+0xc0/0xc0
[  663.761437] Swap cache stats: add 0, delete 0, find 0/0
[  663.765229]  ? __lock_acquire+0x62f/0x4c20
[  663.769261] Free swap  = 0kB
[  663.772710]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  663.776748] Total swap = 0kB
[  663.782110]  ? should_fail+0x22d/0xd01
[  663.786317] 1965979 pages RAM
[  663.789332]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  663.794845] 0 pages HighMem/MovableOnly
[  663.797855]  ? __lock_acquire+0x62f/0x4c20
[  663.801717] 342854 pages reserved
[  663.804813]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  663.809887] 0 pages cma reserved
[  663.813854]  ? __lock_acquire+0x62f/0x4c20
[  663.818126] aoe: skb alloc failure
[  663.821502]  ? should_fail+0x22d/0xd01
[  663.821517]  ? find_held_lock+0x36/0x1c0
[  663.821539]  ? mark_held_locks+0x130/0x130
[  663.826651] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  663.829984]  ? mark_held_locks+0x130/0x130
[  663.834190] syz-fuzzer cpuset=/ mems_allowed=0
[  663.837723]  ? zap_class+0x640/0x640
[  663.872597]  ? mark_held_locks+0xc7/0x130
[  663.876754]  ? do_raw_spin_unlock+0xa7/0x330
[  663.881172]  ? zap_class+0x640/0x640
[  663.884884]  ? print_usage_bug+0xc0/0xc0
[  663.888949]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  663.894514]  ? check_preemption_disabled+0x48/0x280
[  663.899537]  ? __lock_is_held+0xb5/0x140
[  663.903619]  __alloc_pages_nodemask+0xad8/0xea0
[  663.908287]  ? zap_class+0x640/0x640
[  663.912005]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  663.917031]  ? find_held_lock+0x36/0x1c0
[  663.921101]  ? ____cache_alloc_node+0x1c7/0x1e0
[  663.925790]  ? lock_downgrade+0x900/0x900
[  663.929949]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  663.935493]  cache_grow_begin+0xa5/0x8c0
[  663.939554]  ? do_raw_spin_unlock+0xa7/0x330
[  663.943974]  fallback_alloc+0x204/0x2e0
[  663.947955]  ____cache_alloc_node+0x1c7/0x1e0
[  663.952456]  kmem_cache_alloc_node+0xe3/0x730
[  663.956955]  ? ipv6_get_ifaddr+0x42e/0x620
[  663.961199]  __alloc_skb+0x119/0x770
[  663.964914]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  663.970199]  ? netdev_alloc_frag+0x1f0/0x1f0
[  663.974607]  ? lock_downgrade+0x900/0x900
[  663.978789]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  663.984328]  ? refcount_sub_and_test_checked+0x203/0x310
[  663.989791]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  663.995241]  ? addrconf_rs_timer+0x690/0x690
[  663.999663]  ndisc_alloc_skb+0x144/0x340
[  664.003732]  ndisc_send_rs+0x331/0x6e0
[  664.007640]  addrconf_rs_timer+0x314/0x690
[  664.011882]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  664.016130]  call_timer_fn+0x272/0x920
[  664.020015]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  664.024247]  ? process_timeout+0x40/0x40
[  664.028317]  ? __run_timers+0x7da/0xc70
[  664.032291]  ? _raw_spin_unlock_irq+0x27/0x80
[  664.036793]  ? _raw_spin_unlock_irq+0x27/0x80
[  664.041288]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  664.045522]  ? lockdep_hardirqs_on+0x296/0x5b0
[  664.050104]  ? trace_hardirqs_on+0xbd/0x310
[  664.054428]  ? kasan_check_read+0x11/0x20
[  664.058575]  ? __run_timers+0x7da/0xc70
[  664.062557]  ? trace_hardirqs_off_caller+0x310/0x310
[  664.067664]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  664.071907]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  664.076138]  __run_timers+0x7e5/0xc70
[  664.079947]  ? timer_fixup_init+0x70/0x70
[  664.084095]  ? _raw_spin_unlock_irq+0x27/0x80
[  664.088590]  ? _raw_spin_unlock_irq+0x27/0x80
[  664.093084]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  664.097664]  ? trace_hardirqs_on+0xbd/0x310
[  664.101991]  ? kasan_check_read+0x11/0x20
[  664.106141]  ? finish_task_switch+0x1f4/0x910
[  664.110666]  ? trace_hardirqs_off_caller+0x310/0x310
[  664.115792]  ? compat_start_thread+0x80/0x80
[  664.120285]  ? pvclock_read_flags+0x160/0x160
[  664.124792]  ? __switch_to_asm+0x34/0x70
[  664.128858]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.134404]  ? check_preemption_disabled+0x48/0x280
[  664.139431]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  664.144970]  ? rcu_pm_notify+0xc0/0xc0
[  664.148857]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.154394]  ? check_preemption_disabled+0x48/0x280
[  664.159413]  run_timer_softirq+0x52/0xb0
[  664.163476]  ? rcu_read_lock_sched_held+0x14f/0x180
[  664.168495]  __do_softirq+0x308/0xb7e
[  664.172299]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  664.177064]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  664.182166]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  664.187614]  ? trace_hardirqs_on+0x310/0x310
[  664.192028]  ? schedule+0x108/0x460
[  664.195668]  ? trace_hardirqs_off+0xb8/0x310
[  664.200075]  ? smpboot_thread_fn+0x68b/0xa00
[  664.204490]  ? trace_hardirqs_on+0x310/0x310
[  664.208902]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  664.214456]  ? check_preemption_disabled+0x48/0x280
[  664.219582]  ? takeover_tasklets+0xa90/0xa90
[  664.223990]  run_ksoftirqd+0x5e/0x100
[  664.227791]  smpboot_thread_fn+0x68b/0xa00
[  664.232033]  ? sort_range+0x30/0x30
[  664.235660]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  664.240790]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  664.246328]  ? __kthread_parkme+0xfb/0x1a0
[  664.250596]  ? sort_range+0x30/0x30
[  664.254231]  kthread+0x35a/0x440
[  664.257602]  ? kthread_stop+0x900/0x900
[  664.261581]  ret_from_fork+0x3a/0x50
[  664.265312] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  664.265393] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  664.272324] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  664.272329] Call Trace:
[  664.272336]  <IRQ>
[  664.272354]  dump_stack+0x244/0x39d
[  664.272388]  ? dump_stack_print_info.cold.1+0x20/0x20
[  664.278945] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  664.288213]  warn_alloc.cold.116+0xb7/0x1bd
[  664.290778] ksoftirqd/0 cpuset=/ mems_allowed=0
[  664.292921]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  664.325793]  ? lock_downgrade+0x900/0x900
[  664.329950]  ? trace_hardirqs_off+0xb8/0x310
[  664.334369]  ? trace_hardirqs_off+0xb8/0x310
[  664.338804]  __alloc_pages_slowpath+0x2651/0x2de0
[  664.343676]  ? warn_alloc+0x120/0x120
[  664.347481]  ? warn_alloc+0x120/0x120
[  664.351288]  ? __lock_acquire+0x62f/0x4c20
[  664.355525]  ? warn_alloc+0x120/0x120
[  664.359329]  ? print_usage_bug+0xc0/0xc0
[  664.363393]  ? print_usage_bug+0xc0/0xc0
[  664.367459]  ? mark_held_locks+0x130/0x130
[  664.371702]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  664.377237]  ? should_fail+0x22d/0xd01
[  664.381125]  ? zap_class+0x640/0x640
[  664.384847]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  664.389953]  ? __lock_acquire+0x62f/0x4c20
[  664.394194]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  664.399298]  ? should_fail+0x22d/0xd01
[  664.403209]  ? mark_held_locks+0x130/0x130
[  664.407478]  ? mark_held_locks+0x130/0x130
[  664.411710]  ? lock_downgrade+0x900/0x900
[  664.415874]  ? zap_class+0x640/0x640
[  664.419588]  ? zap_class+0x640/0x640
[  664.423302]  ? zap_class+0x640/0x640
[  664.427029]  ? do_raw_spin_unlock+0xa7/0x330
[  664.431438]  ? trace_hardirqs_on+0x310/0x310
[  664.435846]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.441386]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.446936]  ? check_preemption_disabled+0x48/0x280
[  664.451964]  ? __lock_is_held+0xb5/0x140
[  664.456030]  __alloc_pages_nodemask+0xad8/0xea0
[  664.460698]  ? zap_class+0x640/0x640
[  664.464420]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  664.469473]  ? find_held_lock+0x36/0x1c0
[  664.473557]  ? ____cache_alloc_node+0x1c7/0x1e0
[  664.478226]  ? lock_downgrade+0x900/0x900
[  664.482380]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.487920]  cache_grow_begin+0xa5/0x8c0
[  664.491985]  ? do_raw_spin_unlock+0xa7/0x330
[  664.496400]  fallback_alloc+0x204/0x2e0
[  664.500380]  ____cache_alloc_node+0x1c7/0x1e0
[  664.504896]  kmem_cache_alloc_node+0xe3/0x730
[  664.509396]  ? lockdep_hardirqs_on+0x296/0x5b0
[  664.513986]  __alloc_skb+0x119/0x770
[  664.517698]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  664.523066]  ? netdev_alloc_frag+0x1f0/0x1f0
[  664.527497]  ? vprintk_default+0x28/0x30
[  664.531561]  ? vprintk_func+0x85/0x181
[  664.535447]  ? printk+0xa7/0xcf
[  664.538726]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  664.543501]  new_skb+0x26/0x1c0
[  664.546785]  aoecmd_cfg+0x279/0x7f0
[  664.550414]  ? find_held_lock+0x36/0x1c0
[  664.554589]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  664.558932]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.564485]  ? __lock_is_held+0xb5/0x140
[  664.568556]  discover_timer+0x50/0x60
[  664.572399]  call_timer_fn+0x272/0x920
[  664.576288]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  664.581159]  ? process_timeout+0x40/0x40
[  664.585248]  ? mark_held_locks+0xc7/0x130
[  664.589420]  ? _raw_spin_unlock_irq+0x27/0x80
[  664.593930]  ? _raw_spin_unlock_irq+0x27/0x80
[  664.598424]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  664.603271]  ? lockdep_hardirqs_on+0x296/0x5b0
[  664.607855]  ? trace_hardirqs_on+0xbd/0x310
[  664.612178]  ? kasan_check_read+0x11/0x20
[  664.616324]  ? __run_timers+0x7da/0xc70
[  664.620303]  ? trace_hardirqs_off_caller+0x310/0x310
[  664.625419]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  664.630259]  __run_timers+0x7e5/0xc70
[  664.634137]  ? timer_fixup_init+0x70/0x70
[  664.638289]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  664.643310]  ? zap_class+0x640/0x640
[  664.647026]  ? print_usage_bug+0xc0/0xc0
[  664.651091]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  664.656293]  ? find_held_lock+0x36/0x1c0
[  664.660359]  ? zap_class+0x640/0x640
[  664.664080]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.669620]  ? check_preemption_disabled+0x48/0x280
[  664.674647]  ? __lock_is_held+0xb5/0x140
[  664.678708]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.684249]  ? check_preemption_disabled+0x48/0x280
[  664.689793]  run_timer_softirq+0x52/0xb0
[  664.693887]  ? rcu_read_lock_sched_held+0x14f/0x180
[  664.698907]  __do_softirq+0x308/0xb7e
[  664.702710]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  664.707210]  ? lock_downgrade+0x900/0x900
[  664.711361]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  664.716469]  ? pvclock_read_flags+0x160/0x160
[  664.720972]  ? lapic_next_event+0x5a/0x90
[  664.725121]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.730664]  ? kvm_clock_read+0x18/0x30
[  664.734638]  ? kvm_sched_clock_read+0x9/0x20
[  664.739048]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  664.744590]  ? check_preemption_disabled+0x48/0x280
[  664.749629]  irq_exit+0x17f/0x1c0
[  664.753083]  smp_apic_timer_interrupt+0x1cb/0x760
[  664.757938]  ? smp_reschedule_interrupt+0x109/0x650
[  664.762958]  ? smp_call_function_single_interrupt+0x650/0x650
[  664.768846]  ? interrupt_entry+0xb5/0xc0
[  664.772907]  ? trace_hardirqs_off_caller+0xbb/0x310
[  664.777925]  ? trace_hardirqs_off_caller+0xbb/0x310
[  664.782940]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  664.787782]  ? trace_hardirqs_on_caller+0x310/0x310
[  664.792801]  ? trace_hardirqs_on_caller+0x310/0x310
[  664.797816]  ? task_prio+0x50/0x50
[  664.801357]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  664.806898]  ? check_preemption_disabled+0x48/0x280
[  664.811920]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  664.816778]  apic_timer_interrupt+0xf/0x20
[  664.821023]  </IRQ>
[  664.823289] RIP: 0010:dump_stack+0x358/0x39d
[  664.827715] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  664.846618] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  664.854323] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  664.861588] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  664.868856] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  664.876120] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  664.883396] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  664.890678]  ? dump_stack+0x34f/0x39d
[  664.894491]  ? dump_stack_print_info.cold.1+0x20/0x20
[  664.899685]  ? mark_held_locks+0x130/0x130
[  664.903920]  ? mark_held_locks+0x130/0x130
[  664.908157]  dump_header+0x27b/0xf72
[  664.911882]  ? pagefault_out_of_memory+0x197/0x197
[  664.916835]  ? __lock_acquire+0x62f/0x4c20
[  664.921100]  ? percpu_ref_get_many+0x240/0x240
[  664.925711]  ? print_usage_bug+0xc0/0xc0
[  664.929800]  ? zap_class+0x640/0x640
[  664.933520]  ? print_usage_bug+0xc0/0xc0
[  664.937583]  ? print_usage_bug+0xc0/0xc0
[  664.941644]  ? zap_class+0x640/0x640
[  664.945361]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  664.950902]  ? find_held_lock+0x36/0x1c0
[  664.954971]  ? mark_held_locks+0xc7/0x130
[  664.959126]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  664.964228]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  664.969367]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  664.973950]  ? trace_hardirqs_on+0xbd/0x310
[  664.978276]  ? kasan_check_read+0x11/0x20
[  664.982433]  ? ___ratelimit+0x3b4/0x672
[  664.986416]  ? trace_hardirqs_off_caller+0x310/0x310
[  664.991521]  ? trace_hardirqs_on+0x310/0x310
[  664.995940]  ? lock_downgrade+0x900/0x900
[  665.000092]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  665.005196]  ? ___ratelimit+0x3b9/0x672
[  665.009171]  ? idr_get_free+0xf70/0xf70
[  665.013145]  ? find_held_lock+0x36/0x1c0
[  665.017215]  oom_kill_process.cold.27+0x10/0x903
[  665.021967]  ? zap_class+0x640/0x640
[  665.025684]  ? check_preemption_disabled+0x48/0x280
[  665.030721]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  665.035654]  ? kasan_check_read+0x11/0x20
[  665.039804]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  665.045081]  ? oom_evaluate_task+0x540/0x540
[  665.049526]  ? find_held_lock+0x36/0x1c0
[  665.053607]  ? out_of_memory+0x974/0x1430
[  665.057805]  ? lock_downgrade+0x900/0x900
[  665.061980]  ? check_preemption_disabled+0x48/0x280
[  665.067014]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  665.071941]  ? kasan_check_read+0x11/0x20
[  665.076106]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  665.081381]  ? rcu_softirq_qs+0x20/0x20
[  665.085361]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  665.090931]  ? oom_evaluate_task+0x302/0x540
[  665.095361]  out_of_memory+0xa84/0x1430
[  665.099342]  ? oom_killer_disable+0x3a0/0x3a0
[  665.103852]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  665.108791]  ? __ww_mutex_check_waiters+0x160/0x160
[  665.113819]  __alloc_pages_slowpath+0x232c/0x2de0
[  665.118717]  ? warn_alloc+0x120/0x120
[  665.122523]  ? mark_held_locks+0x130/0x130
[  665.126767]  ? find_get_entry+0xaae/0x1120
[  665.131013]  ? filemap_map_pages+0x1a20/0x1a20
[  665.135613]  ? zap_class+0x640/0x640
[  665.139359]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  665.144894]  ? check_preemption_disabled+0x48/0x280
[  665.149906]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  665.155444]  ? should_fail+0x22d/0xd01
[  665.159338]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  665.164439]  ? zap_class+0x640/0x640
[  665.168180]  ? __lock_is_held+0xb5/0x140
[  665.172251]  ? mark_held_locks+0x130/0x130
[  665.176507]  ? lock_release+0xa00/0xa00
[  665.180483]  ? perf_trace_sched_process_exec+0x860/0x860
[  665.185933]  ? xa_load+0x2ba/0x460
[  665.189478]  ? lock_downgrade+0x900/0x900
[  665.193633]  ? __might_sleep+0x95/0x190
[  665.197623]  __alloc_pages_nodemask+0xad8/0xea0
[  665.202302]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  665.207335]  ? __page_cache_alloc+0x191/0x5c0
[  665.211847]  ? xa_load+0x2e1/0x460
[  665.215388]  ? xa_clear_mark+0x40/0x40
[  665.219286]  ? zap_class+0x640/0x640
[  665.223007]  ? zap_class+0x640/0x640
[  665.226720]  ? zap_class+0x640/0x640
[  665.230439]  ? __do_page_cache_readahead+0x663/0x810
[  665.235543]  ? find_held_lock+0x36/0x1c0
[  665.239627]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  665.245174]  alloc_pages_current+0x173/0x350
[  665.249588]  __page_cache_alloc+0x38c/0x5c0
[  665.253920]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  665.258851]  ? kasan_check_read+0x11/0x20
[  665.262997]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  665.268291]  ? generic_perform_write+0x6a0/0x6a0
[  665.273047]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  665.278587]  ? check_preemption_disabled+0x48/0x280
[  665.283640]  filemap_fault+0x1595/0x25f0
[  665.287726]  ? __lock_page_or_retry+0xa00/0xa00
[  665.292403]  ? mark_held_locks+0x130/0x130
[  665.296648]  ? filemap_map_pages+0xd6b/0x1a20
[  665.301146]  ? lock_downgrade+0x900/0x900
[  665.305297]  ? check_preemption_disabled+0x48/0x280
[  665.310312]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  665.315257]  ? kasan_check_read+0x11/0x20
[  665.319411]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  665.324698]  ? rcu_softirq_qs+0x20/0x20
[  665.328702]  ? filemap_map_pages+0xd92/0x1a20
[  665.333205]  ? print_usage_bug+0xc0/0xc0
[  665.337274]  ? find_get_entries_tag+0x1400/0x1400
[  665.342118]  ? __kasan_slab_free+0x102/0x150
[  665.346553]  ? kasan_slab_free+0xe/0x10
[  665.350522]  ? kmem_cache_free+0x83/0x290
[  665.354666]  ? __sigqueue_free.part.29+0x74/0x90
[  665.359439]  ? lock_acquire+0x1ed/0x520
[  665.363426]  ? ext4_filemap_fault+0x7a/0xad
[  665.367760]  ? lock_release+0xa00/0xa00
[  665.371756]  ? perf_trace_sched_process_exec+0x860/0x860
[  665.377208]  ? print_usage_bug+0xc0/0xc0
[  665.381275]  ? print_usage_bug+0xc0/0xc0
[  665.385347]  ? down_read+0x8d/0x120
[  665.388989]  ? ext4_filemap_fault+0x7a/0xad
[  665.393312]  ? __down_interruptible+0x700/0x700
[  665.397994]  ext4_filemap_fault+0x82/0xad
[  665.402145]  __do_fault+0x100/0x6b0
[  665.405780]  ? pmd_devmap_trans_unstable+0x220/0x220
[  665.410888]  ? mark_held_locks+0x130/0x130
[  665.415127]  ? mark_held_locks+0x130/0x130
[  665.419370]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  665.424911]  ? rcu_pm_notify+0xc0/0xc0
[  665.428807]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  665.434348]  __handle_mm_fault+0x3ea0/0x5be0
[  665.438773]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  665.443614]  ? _raw_spin_unlock_irq+0x27/0x80
[  665.448108]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  665.452692]  ? trace_hardirqs_on+0xbd/0x310
[  665.457026]  ? kasan_check_read+0x11/0x20
[  665.461172]  ? __set_current_blocked+0xdf/0x120
[  665.465840]  ? trace_hardirqs_off_caller+0x310/0x310
[  665.470957]  ? zap_class+0x640/0x640
[  665.474676]  ? zap_class+0x640/0x640
[  665.478410]  ? find_held_lock+0x36/0x1c0
[  665.482482]  ? handle_mm_fault+0x42a/0xc70
[  665.486722]  ? lock_downgrade+0x900/0x900
[  665.490892]  ? check_preemption_disabled+0x48/0x280
[  665.495910]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  665.500845]  ? kasan_check_read+0x11/0x20
[  665.504992]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  665.510273]  ? rcu_softirq_qs+0x20/0x20
[  665.514245]  ? trace_hardirqs_off_caller+0x310/0x310
[  665.519351]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  665.524892]  ? check_preemption_disabled+0x48/0x280
[  665.529918]  handle_mm_fault+0x54f/0xc70
[  665.533984]  ? __handle_mm_fault+0x5be0/0x5be0
[  665.538576]  ? find_vma+0x34/0x190
[  665.542124]  __do_page_fault+0x5e8/0xe60
[  665.546189]  ? exit_to_usermode_loop+0x1f4/0x380
[  665.550986]  do_page_fault+0xf2/0x7e0
[  665.554788]  ? vmalloc_sync_all+0x30/0x30
[  665.558943]  ? error_entry+0x70/0xd0
[  665.562674]  ? trace_hardirqs_off_caller+0xbb/0x310
[  665.567686]  ? trace_hardirqs_on_caller+0xc0/0x310
[  665.572616]  ? syscall_return_slowpath+0x5e0/0x5e0
[  665.577543]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  665.582388]  ? trace_hardirqs_on_caller+0x310/0x310
[  665.587420]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  665.592889]  ? prepare_exit_to_usermode+0x291/0x3b0
[  665.597907]  ? page_fault+0x8/0x30
[  665.601452]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  665.606301]  ? page_fault+0x8/0x30
[  665.609845]  page_fault+0x1e/0x30
[  665.613298] RIP: 0033:0x45db60
[  665.616500] Code: Bad RIP value.
[  665.619857] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  665.625213] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  665.632503] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  665.639785] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  665.647053] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  665.654316] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  665.661600] warn_alloc_show_mem: 1 callbacks suppressed
[  665.661636] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  665.661638] Mem-Info:
[  665.661684] active_anon:42936 inactive_anon:306 isolated_anon:0
[  665.661684]  active_file:13 inactive_file:13 isolated_file:0
[  665.661684]  unevictable:0 dirty:0 writeback:0 unstable:0
[  665.661684]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  665.661684]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  665.661684]  free:13785 free_pcp:492 free_cma:0
[  665.667019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  665.673860] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  665.676258] Call Trace:
[  665.709487] 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
[  665.718837]  dump_stack+0x244/0x39d
[  665.746387] lowmem_reserve[]: 0 2818 6321 6321
[  665.748970]  ? dump_stack_print_info.cold.1+0x20/0x20
[  665.775048] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  665.778691]  warn_alloc.cold.116+0xb7/0x1bd
[  665.783234] lowmem_reserve[]: 0 0 3503 3503
[  665.788414]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  665.815534] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  665.819868]  ? lock_downgrade+0x900/0x900
[  665.824162] lowmem_reserve[]: 0 0 0 0
[  665.829023]  ? trace_hardirqs_off+0xb8/0x310
[  665.858138] 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
[  665.862277]  ? trace_hardirqs_off+0xb8/0x310
[  665.866052] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  665.870455]  __alloc_pages_slowpath+0x2651/0x2de0
[  665.883947] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  665.888371]  ? warn_alloc+0x120/0x120
[  665.903498] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  665.908326]  ? print_usage_bug+0xc0/0xc0
[  665.923474] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  665.927256]  ? warn_alloc+0x120/0x120
[  665.936070] 380 total pagecache pages
[  665.940120]  ? warn_alloc+0x120/0x120
[  665.948693] 0 pages in swap cache
[  665.952485]  ? print_usage_bug+0xc0/0xc0
[  665.956262] Swap cache stats: add 0, delete 0, find 0/0
[  665.960053]  ? print_usage_bug+0xc0/0xc0
[  665.963479] Free swap  = 0kB
[  665.967546]  ? __lock_acquire+0x62f/0x4c20
[  665.972881] Total swap = 0kB
[  665.976953]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  665.979959] 1965979 pages RAM
[  665.984185]  ? should_fail+0x22d/0xd01
[  665.987190] 0 pages HighMem/MovableOnly
[  665.992730]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  665.995817] 342854 pages reserved
[  665.999698]  ? __lock_acquire+0x62f/0x4c20
[  666.003649] 0 pages cma reserved
[  666.008751]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  666.012229] aoe: skb alloc failure
[  666.016392]  ? __lock_acquire+0x62f/0x4c20
[  666.016408]  ? should_fail+0x22d/0xd01
[  666.019844] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  666.024875]  ? find_held_lock+0x36/0x1c0
[  666.028390] syz-fuzzer cpuset=/ mems_allowed=0
[  666.032621]  ? mark_held_locks+0x130/0x130
[  666.059521]  ? mark_held_locks+0x130/0x130
[  666.063762]  ? zap_class+0x640/0x640
[  666.067483]  ? mark_held_locks+0xc7/0x130
[  666.071625]  ? do_raw_spin_unlock+0xa7/0x330
[  666.076034]  ? zap_class+0x640/0x640
[  666.079758]  ? print_usage_bug+0xc0/0xc0
[  666.083833]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.089374]  ? check_preemption_disabled+0x48/0x280
[  666.094408]  ? __lock_is_held+0xb5/0x140
[  666.098474]  __alloc_pages_nodemask+0xad8/0xea0
[  666.103147]  ? zap_class+0x640/0x640
[  666.106869]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  666.111898]  ? find_held_lock+0x36/0x1c0
[  666.115973]  ? ____cache_alloc_node+0x1c7/0x1e0
[  666.120640]  ? lock_downgrade+0x900/0x900
[  666.124802]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.130344]  cache_grow_begin+0xa5/0x8c0
[  666.134433]  ? do_raw_spin_unlock+0xa7/0x330
[  666.138848]  fallback_alloc+0x204/0x2e0
[  666.142832]  ____cache_alloc_node+0x1c7/0x1e0
[  666.147335]  kmem_cache_alloc_node+0xe3/0x730
[  666.151831]  ? ipv6_get_ifaddr+0x42e/0x620
[  666.156090]  __alloc_skb+0x119/0x770
[  666.159816]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  666.165094]  ? netdev_alloc_frag+0x1f0/0x1f0
[  666.169514]  ? lock_downgrade+0x900/0x900
[  666.173668]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.179233]  ? refcount_sub_and_test_checked+0x203/0x310
[  666.184684]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  666.190130]  ? addrconf_rs_timer+0x690/0x690
[  666.194553]  ndisc_alloc_skb+0x144/0x340
[  666.198617]  ndisc_send_rs+0x331/0x6e0
[  666.202525]  addrconf_rs_timer+0x314/0x690
[  666.206795]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  666.211051]  call_timer_fn+0x272/0x920
[  666.214937]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  666.219169]  ? process_timeout+0x40/0x40
[  666.223235]  ? __run_timers+0x7da/0xc70
[  666.227211]  ? _raw_spin_unlock_irq+0x27/0x80
[  666.231720]  ? _raw_spin_unlock_irq+0x27/0x80
[  666.236235]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  666.240467]  ? lockdep_hardirqs_on+0x296/0x5b0
[  666.245065]  ? trace_hardirqs_on+0xbd/0x310
[  666.249383]  ? kasan_check_read+0x11/0x20
[  666.253526]  ? __run_timers+0x7da/0xc70
[  666.257500]  ? trace_hardirqs_off_caller+0x310/0x310
[  666.262622]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  666.266889]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  666.271119]  __run_timers+0x7e5/0xc70
[  666.274947]  ? timer_fixup_init+0x70/0x70
[  666.279205]  ? _raw_spin_unlock_irq+0x27/0x80
[  666.283701]  ? _raw_spin_unlock_irq+0x27/0x80
[  666.288196]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  666.292791]  ? trace_hardirqs_on+0xbd/0x310
[  666.297110]  ? kasan_check_read+0x11/0x20
[  666.301262]  ? finish_task_switch+0x1f4/0x910
[  666.305774]  ? trace_hardirqs_off_caller+0x310/0x310
[  666.310889]  ? compat_start_thread+0x80/0x80
[  666.315322]  ? pvclock_read_flags+0x160/0x160
[  666.319817]  ? __switch_to_asm+0x34/0x70
[  666.323898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.329437]  ? check_preemption_disabled+0x48/0x280
[  666.334468]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  666.340019]  ? rcu_pm_notify+0xc0/0xc0
[  666.343905]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.349438]  ? check_preemption_disabled+0x48/0x280
[  666.354456]  run_timer_softirq+0x52/0xb0
[  666.358513]  ? rcu_read_lock_sched_held+0x14f/0x180
[  666.363558]  __do_softirq+0x308/0xb7e
[  666.367361]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  666.372139]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  666.377239]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  666.382685]  ? trace_hardirqs_on+0x310/0x310
[  666.387140]  ? schedule+0x108/0x460
[  666.390797]  ? trace_hardirqs_off+0xb8/0x310
[  666.395210]  ? smpboot_thread_fn+0x68b/0xa00
[  666.399618]  ? trace_hardirqs_on+0x310/0x310
[  666.404026]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  666.409575]  ? check_preemption_disabled+0x48/0x280
[  666.414589]  ? takeover_tasklets+0xa90/0xa90
[  666.418999]  run_ksoftirqd+0x5e/0x100
[  666.422803]  smpboot_thread_fn+0x68b/0xa00
[  666.427044]  ? sort_range+0x30/0x30
[  666.430670]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  666.435795]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  666.441335]  ? __kthread_parkme+0xfb/0x1a0
[  666.445587]  ? sort_range+0x30/0x30
[  666.449225]  kthread+0x35a/0x440
[  666.452589]  ? kthread_stop+0x900/0x900
[  666.456562]  ret_from_fork+0x3a/0x50
[  666.460317] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  666.460411] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  666.467342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  666.467351] Call Trace:
[  666.473917] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  666.483166]  <IRQ>
[  666.485737] ksoftirqd/0 cpuset=/ mems_allowed=0
[  666.496060]  dump_stack+0x244/0x39d
[  666.506460]  ? dump_stack_print_info.cold.1+0x20/0x20
[  666.511664]  warn_alloc.cold.116+0xb7/0x1bd
[  666.515987]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  666.520832]  ? lock_downgrade+0x900/0x900
[  666.524988]  ? trace_hardirqs_off+0xb8/0x310
[  666.529420]  ? trace_hardirqs_off+0xb8/0x310
[  666.533864]  __alloc_pages_slowpath+0x2651/0x2de0
[  666.538737]  ? warn_alloc+0x120/0x120
[  666.542557]  ? warn_alloc+0x120/0x120
[  666.546364]  ? warn_alloc+0x120/0x120
[  666.550165]  ? print_usage_bug+0xc0/0xc0
[  666.554362]  ? print_usage_bug+0xc0/0xc0
[  666.558424]  ? ktime_get+0x2c1/0x400
[  666.562142]  ? check_preemption_disabled+0x48/0x280
[  666.567183]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  666.571676]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  666.577210]  ? should_fail+0x22d/0xd01
[  666.581098]  ? kasan_check_read+0x11/0x20
[  666.585249]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  666.590359]  ? __lock_acquire+0x62f/0x4c20
[  666.594597]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  666.599700]  ? should_fail+0x22d/0xd01
[  666.603590]  ? print_usage_bug+0xc0/0xc0
[  666.607661]  ? mark_held_locks+0x130/0x130
[  666.611904]  ? mark_held_locks+0x130/0x130
[  666.616141]  ? check_preemption_disabled+0x48/0x280
[  666.621166]  ? zap_class+0x640/0x640
[  666.624889]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  666.629646]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.635200]  ? check_preemption_disabled+0x48/0x280
[  666.640227]  ? __lock_is_held+0xb5/0x140
[  666.644295]  __alloc_pages_nodemask+0xad8/0xea0
[  666.648962]  ? zap_class+0x640/0x640
[  666.652683]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  666.657712]  ? find_held_lock+0x36/0x1c0
[  666.661794]  ? ____cache_alloc_node+0x1c7/0x1e0
[  666.666495]  ? lock_downgrade+0x900/0x900
[  666.670649]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.676190]  cache_grow_begin+0xa5/0x8c0
[  666.680249]  ? do_raw_spin_unlock+0xa7/0x330
[  666.684668]  fallback_alloc+0x204/0x2e0
[  666.689099]  ____cache_alloc_node+0x1c7/0x1e0
[  666.693600]  kmem_cache_alloc_node+0xe3/0x730
[  666.698096]  ? lockdep_hardirqs_on+0x296/0x5b0
[  666.702689]  __alloc_skb+0x119/0x770
[  666.706405]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  666.711781]  ? netdev_alloc_frag+0x1f0/0x1f0
[  666.716229]  ? vprintk_default+0x28/0x30
[  666.720290]  ? vprintk_func+0x85/0x181
[  666.724178]  ? printk+0xa7/0xcf
[  666.727458]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  666.732246]  new_skb+0x26/0x1c0
[  666.735534]  aoecmd_cfg+0x279/0x7f0
[  666.739167]  ? find_held_lock+0x36/0x1c0
[  666.743231]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  666.747563]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.753109]  ? __lock_is_held+0xb5/0x140
[  666.757185]  discover_timer+0x50/0x60
[  666.760988]  call_timer_fn+0x272/0x920
[  666.764879]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  666.769733]  ? process_timeout+0x40/0x40
[  666.773816]  ? mark_held_locks+0xc7/0x130
[  666.777969]  ? _raw_spin_unlock_irq+0x27/0x80
[  666.782462]  ? _raw_spin_unlock_irq+0x27/0x80
[  666.786967]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  666.791828]  ? lockdep_hardirqs_on+0x296/0x5b0
[  666.796409]  ? trace_hardirqs_on+0xbd/0x310
[  666.800730]  ? kasan_check_read+0x11/0x20
[  666.804881]  ? __run_timers+0x7da/0xc70
[  666.808861]  ? trace_hardirqs_off_caller+0x310/0x310
[  666.814006]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  666.818845]  __run_timers+0x7e5/0xc70
[  666.822670]  ? timer_fixup_init+0x70/0x70
[  666.826818]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  666.831840]  ? zap_class+0x640/0x640
[  666.835563]  ? print_usage_bug+0xc0/0xc0
[  666.839625]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  666.844825]  ? find_held_lock+0x36/0x1c0
[  666.848890]  ? zap_class+0x640/0x640
[  666.852610]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.858168]  ? check_preemption_disabled+0x48/0x280
[  666.863207]  ? __lock_is_held+0xb5/0x140
[  666.867301]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.872856]  ? check_preemption_disabled+0x48/0x280
[  666.877892]  run_timer_softirq+0x52/0xb0
[  666.881955]  ? rcu_read_lock_sched_held+0x14f/0x180
[  666.886976]  __do_softirq+0x308/0xb7e
[  666.890785]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  666.895295]  ? lock_downgrade+0x900/0x900
[  666.899473]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  666.904599]  ? pvclock_read_flags+0x160/0x160
[  666.909109]  ? lapic_next_event+0x5a/0x90
[  666.913257]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  666.918807]  ? kvm_clock_read+0x18/0x30
[  666.922786]  ? kvm_sched_clock_read+0x9/0x20
[  666.927199]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  666.932756]  ? check_preemption_disabled+0x48/0x280
[  666.937796]  irq_exit+0x17f/0x1c0
[  666.941255]  smp_apic_timer_interrupt+0x1cb/0x760
[  666.946106]  ? smp_reschedule_interrupt+0x109/0x650
[  666.951121]  ? smp_call_function_single_interrupt+0x650/0x650
[  666.957010]  ? interrupt_entry+0xb5/0xc0
[  666.961085]  ? trace_hardirqs_off_caller+0xbb/0x310
[  666.966100]  ? trace_hardirqs_off_caller+0xbb/0x310
[  666.971123]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  666.976008]  ? trace_hardirqs_on_caller+0x310/0x310
[  666.981027]  ? trace_hardirqs_on_caller+0x310/0x310
[  666.986040]  ? task_prio+0x50/0x50
[  666.989594]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  666.995136]  ? check_preemption_disabled+0x48/0x280
[  667.000159]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  667.005010]  apic_timer_interrupt+0xf/0x20
[  667.009237]  </IRQ>
[  667.011477] RIP: 0010:dump_stack+0x358/0x39d
[  667.015887] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  667.034786] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  667.042838] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  667.050104] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  667.057367] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  667.064633] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  667.071899] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  667.079180]  ? dump_stack+0x34f/0x39d
[  667.082992]  ? dump_stack_print_info.cold.1+0x20/0x20
[  667.088219]  ? mark_held_locks+0x130/0x130
[  667.092452]  ? mark_held_locks+0x130/0x130
[  667.096692]  dump_header+0x27b/0xf72
[  667.100421]  ? pagefault_out_of_memory+0x197/0x197
[  667.105361]  ? __lock_acquire+0x62f/0x4c20
[  667.109599]  ? percpu_ref_get_many+0x240/0x240
[  667.114201]  ? print_usage_bug+0xc0/0xc0
[  667.118303]  ? zap_class+0x640/0x640
[  667.122021]  ? print_usage_bug+0xc0/0xc0
[  667.126082]  ? print_usage_bug+0xc0/0xc0
[  667.130143]  ? zap_class+0x640/0x640
[  667.133877]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  667.139430]  ? find_held_lock+0x36/0x1c0
[  667.143497]  ? mark_held_locks+0xc7/0x130
[  667.147647]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  667.152754]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  667.157873]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  667.162484]  ? trace_hardirqs_on+0xbd/0x310
[  667.166816]  ? kasan_check_read+0x11/0x20
[  667.170961]  ? ___ratelimit+0x3b4/0x672
[  667.174934]  ? trace_hardirqs_off_caller+0x310/0x310
[  667.180040]  ? trace_hardirqs_on+0x310/0x310
[  667.184447]  ? lock_downgrade+0x900/0x900
[  667.188615]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  667.193732]  ? ___ratelimit+0x3b9/0x672
[  667.197720]  ? idr_get_free+0xf70/0xf70
[  667.201699]  ? find_held_lock+0x36/0x1c0
[  667.205783]  oom_kill_process.cold.27+0x10/0x903
[  667.210553]  ? zap_class+0x640/0x640
[  667.214282]  ? check_preemption_disabled+0x48/0x280
[  667.219317]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  667.224244]  ? kasan_check_read+0x11/0x20
[  667.228392]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  667.233667]  ? oom_evaluate_task+0x540/0x540
[  667.238079]  ? find_held_lock+0x36/0x1c0
[  667.242166]  ? out_of_memory+0x974/0x1430
[  667.246315]  ? lock_downgrade+0x900/0x900
[  667.250462]  ? check_preemption_disabled+0x48/0x280
[  667.255479]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  667.260422]  ? kasan_check_read+0x11/0x20
[  667.264588]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  667.269884]  ? rcu_softirq_qs+0x20/0x20
[  667.273863]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  667.279400]  ? oom_evaluate_task+0x302/0x540
[  667.283817]  out_of_memory+0xa84/0x1430
[  667.287806]  ? oom_killer_disable+0x3a0/0x3a0
[  667.292304]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  667.297249]  ? __ww_mutex_check_waiters+0x160/0x160
[  667.302286]  __alloc_pages_slowpath+0x232c/0x2de0
[  667.307159]  ? warn_alloc+0x120/0x120
[  667.310973]  ? mark_held_locks+0x130/0x130
[  667.315223]  ? find_get_entry+0xaae/0x1120
[  667.319472]  ? filemap_map_pages+0x1a20/0x1a20
[  667.324086]  ? zap_class+0x640/0x640
[  667.327809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  667.333349]  ? check_preemption_disabled+0x48/0x280
[  667.338368]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  667.343914]  ? should_fail+0x22d/0xd01
[  667.347807]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  667.352912]  ? zap_class+0x640/0x640
[  667.356650]  ? __lock_is_held+0xb5/0x140
[  667.360719]  ? mark_held_locks+0x130/0x130
[  667.364968]  ? lock_release+0xa00/0xa00
[  667.368958]  ? perf_trace_sched_process_exec+0x860/0x860
[  667.374416]  ? xa_load+0x2ba/0x460
[  667.377956]  ? lock_downgrade+0x900/0x900
[  667.382109]  ? __might_sleep+0x95/0x190
[  667.386100]  __alloc_pages_nodemask+0xad8/0xea0
[  667.390797]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  667.395811]  ? __page_cache_alloc+0x191/0x5c0
[  667.400315]  ? xa_load+0x2e1/0x460
[  667.403857]  ? xa_clear_mark+0x40/0x40
[  667.407762]  ? zap_class+0x640/0x640
[  667.411483]  ? zap_class+0x640/0x640
[  667.415200]  ? zap_class+0x640/0x640
[  667.418932]  ? __do_page_cache_readahead+0x663/0x810
[  667.424041]  ? find_held_lock+0x36/0x1c0
[  667.428108]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  667.433656]  alloc_pages_current+0x173/0x350
[  667.438071]  __page_cache_alloc+0x38c/0x5c0
[  667.442389]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  667.447314]  ? kasan_check_read+0x11/0x20
[  667.451462]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  667.456738]  ? generic_perform_write+0x6a0/0x6a0
[  667.461510]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  667.467065]  ? check_preemption_disabled+0x48/0x280
[  667.472090]  filemap_fault+0x1595/0x25f0
[  667.476191]  ? __lock_page_or_retry+0xa00/0xa00
[  667.480862]  ? mark_held_locks+0x130/0x130
[  667.485122]  ? filemap_map_pages+0xd6b/0x1a20
[  667.489648]  ? lock_downgrade+0x900/0x900
[  667.493814]  ? check_preemption_disabled+0x48/0x280
[  667.498829]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  667.503779]  ? kasan_check_read+0x11/0x20
[  667.507925]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  667.513201]  ? rcu_softirq_qs+0x20/0x20
[  667.517192]  ? filemap_map_pages+0xd92/0x1a20
[  667.521725]  ? print_usage_bug+0xc0/0xc0
[  667.525804]  ? find_get_entries_tag+0x1400/0x1400
[  667.530648]  ? __kasan_slab_free+0x102/0x150
[  667.535060]  ? kasan_slab_free+0xe/0x10
[  667.539048]  ? kmem_cache_free+0x83/0x290
[  667.543195]  ? __sigqueue_free.part.29+0x74/0x90
[  667.547983]  ? lock_acquire+0x1ed/0x520
[  667.551958]  ? ext4_filemap_fault+0x7a/0xad
[  667.556291]  ? lock_release+0xa00/0xa00
[  667.560270]  ? perf_trace_sched_process_exec+0x860/0x860
[  667.565723]  ? print_usage_bug+0xc0/0xc0
[  667.569815]  ? print_usage_bug+0xc0/0xc0
[  667.573887]  ? down_read+0x8d/0x120
[  667.577511]  ? ext4_filemap_fault+0x7a/0xad
[  667.581834]  ? __down_interruptible+0x700/0x700
[  667.586513]  ext4_filemap_fault+0x82/0xad
[  667.590674]  __do_fault+0x100/0x6b0
[  667.594307]  ? pmd_devmap_trans_unstable+0x220/0x220
[  667.599425]  ? mark_held_locks+0x130/0x130
[  667.603665]  ? mark_held_locks+0x130/0x130
[  667.607905]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  667.613441]  ? rcu_pm_notify+0xc0/0xc0
[  667.617353]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  667.622897]  __handle_mm_fault+0x3ea0/0x5be0
[  667.627313]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  667.632154]  ? _raw_spin_unlock_irq+0x27/0x80
[  667.636655]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  667.641243]  ? trace_hardirqs_on+0xbd/0x310
[  667.645593]  ? kasan_check_read+0x11/0x20
[  667.649791]  ? __set_current_blocked+0xdf/0x120
[  667.654460]  ? trace_hardirqs_off_caller+0x310/0x310
[  667.659576]  ? zap_class+0x640/0x640
[  667.663304]  ? zap_class+0x640/0x640
[  667.667021]  ? find_held_lock+0x36/0x1c0
[  667.671095]  ? handle_mm_fault+0x42a/0xc70
[  667.675334]  ? lock_downgrade+0x900/0x900
[  667.679486]  ? check_preemption_disabled+0x48/0x280
[  667.684538]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  667.689469]  ? kasan_check_read+0x11/0x20
[  667.693616]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  667.698892]  ? rcu_softirq_qs+0x20/0x20
[  667.702869]  ? trace_hardirqs_off_caller+0x310/0x310
[  667.707973]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  667.713528]  ? check_preemption_disabled+0x48/0x280
[  667.718550]  handle_mm_fault+0x54f/0xc70
[  667.722642]  ? __handle_mm_fault+0x5be0/0x5be0
[  667.727228]  ? find_vma+0x34/0x190
[  667.730791]  __do_page_fault+0x5e8/0xe60
[  667.734859]  ? exit_to_usermode_loop+0x1f4/0x380
[  667.739638]  do_page_fault+0xf2/0x7e0
[  667.743447]  ? vmalloc_sync_all+0x30/0x30
[  667.747610]  ? error_entry+0x70/0xd0
[  667.751323]  ? trace_hardirqs_off_caller+0xbb/0x310
[  667.756334]  ? trace_hardirqs_on_caller+0xc0/0x310
[  667.761263]  ? syscall_return_slowpath+0x5e0/0x5e0
[  667.766197]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  667.771044]  ? trace_hardirqs_on_caller+0x310/0x310
[  667.776071]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  667.781526]  ? prepare_exit_to_usermode+0x291/0x3b0
[  667.786551]  ? page_fault+0x8/0x30
[  667.790108]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  667.794950]  ? page_fault+0x8/0x30
[  667.798491]  page_fault+0x1e/0x30
[  667.801940] RIP: 0033:0x45db60
[  667.805172] Code: Bad RIP value.
[  667.808528] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  667.813886] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  667.821153] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  667.828417] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  667.835681] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  667.842945] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  667.850230] warn_alloc_show_mem: 1 callbacks suppressed
[  667.850242] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  667.850244] Mem-Info:
[  667.850280] active_anon:42936 inactive_anon:306 isolated_anon:0
[  667.850280]  active_file:13 inactive_file:13 isolated_file:0
[  667.850280]  unevictable:0 dirty:0 writeback:0 unstable:0
[  667.850280]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  667.850280]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  667.850280]  free:13785 free_pcp:492 free_cma:0
[  667.855632] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  667.862506] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  667.864924] Call Trace:
[  667.897695] 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
[  667.907042]  dump_stack+0x244/0x39d
[  667.935028] lowmem_reserve[]: 0 2818 6321 6321
[  667.937606]  ? dump_stack_print_info.cold.1+0x20/0x20
[  667.963698] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  667.967343]  warn_alloc.cold.116+0xb7/0x1bd
[  667.971890] lowmem_reserve[]: 0 0 3503 3503
[  667.977073]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  668.004196] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  668.008512]  ? lock_downgrade+0x900/0x900
[  668.012805] lowmem_reserve[]: 0 0 0 0
[  668.017644]  ? trace_hardirqs_off+0xb8/0x310
[  668.046765] 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
[  668.050916]  ? trace_hardirqs_off+0xb8/0x310
[  668.054688] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  668.059093]  __alloc_pages_slowpath+0x2651/0x2de0
[  668.072583] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  668.077008]  ? warn_alloc+0x120/0x120
[  668.092136] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  668.096963]  ? print_usage_bug+0xc0/0xc0
[  668.112110] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  668.115899]  ? warn_alloc+0x120/0x120
[  668.124707] 380 total pagecache pages
[  668.128772]  ? warn_alloc+0x120/0x120
[  668.137325] 0 pages in swap cache
[  668.141106]  ? print_usage_bug+0xc0/0xc0
[  668.144883] Swap cache stats: add 0, delete 0, find 0/0
[  668.148673]  ? print_usage_bug+0xc0/0xc0
[  668.152103] Free swap  = 0kB
[  668.156152]  ? __lock_acquire+0x62f/0x4c20
[  668.161517] Total swap = 0kB
[  668.165570]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  668.168561] 1965979 pages RAM
[  668.172796]  ? should_fail+0x22d/0xd01
[  668.175816] 0 pages HighMem/MovableOnly
[  668.181346]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  668.184424] 342854 pages reserved
[  668.188301]  ? __lock_acquire+0x62f/0x4c20
[  668.192250] 0 pages cma reserved
[  668.197346]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  668.200826] aoe: skb alloc failure
[  668.204998]  ? __lock_acquire+0x62f/0x4c20
[  668.205014]  ? should_fail+0x22d/0xd01
[  668.208403] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  668.213467]  ? find_held_lock+0x36/0x1c0
[  668.216983] syz-fuzzer cpuset=/ mems_allowed=0
[  668.221215]  ? mark_held_locks+0x130/0x130
[  668.248105]  ? mark_held_locks+0x130/0x130
[  668.252342]  ? zap_class+0x640/0x640
[  668.256058]  ? mark_held_locks+0xc7/0x130
[  668.260213]  ? do_raw_spin_unlock+0xa7/0x330
[  668.264620]  ? zap_class+0x640/0x640
[  668.268332]  ? print_usage_bug+0xc0/0xc0
[  668.272422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.278004]  ? check_preemption_disabled+0x48/0x280
[  668.283031]  ? __lock_is_held+0xb5/0x140
[  668.287099]  __alloc_pages_nodemask+0xad8/0xea0
[  668.291811]  ? zap_class+0x640/0x640
[  668.295544]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  668.300575]  ? find_held_lock+0x36/0x1c0
[  668.304663]  ? ____cache_alloc_node+0x1c7/0x1e0
[  668.309337]  ? lock_downgrade+0x900/0x900
[  668.313521]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.319062]  cache_grow_begin+0xa5/0x8c0
[  668.323126]  ? do_raw_spin_unlock+0xa7/0x330
[  668.327580]  fallback_alloc+0x204/0x2e0
[  668.331566]  ____cache_alloc_node+0x1c7/0x1e0
[  668.336065]  kmem_cache_alloc_node+0xe3/0x730
[  668.340558]  ? ipv6_get_ifaddr+0x42e/0x620
[  668.344807]  __alloc_skb+0x119/0x770
[  668.348521]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  668.353829]  ? netdev_alloc_frag+0x1f0/0x1f0
[  668.358237]  ? lock_downgrade+0x900/0x900
[  668.362393]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.367957]  ? refcount_sub_and_test_checked+0x203/0x310
[  668.373426]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  668.378876]  ? addrconf_rs_timer+0x690/0x690
[  668.383294]  ndisc_alloc_skb+0x144/0x340
[  668.387374]  ndisc_send_rs+0x331/0x6e0
[  668.391310]  addrconf_rs_timer+0x314/0x690
[  668.395549]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  668.399801]  call_timer_fn+0x272/0x920
[  668.403693]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  668.407929]  ? process_timeout+0x40/0x40
[  668.411997]  ? __run_timers+0x7da/0xc70
[  668.415977]  ? _raw_spin_unlock_irq+0x27/0x80
[  668.420485]  ? _raw_spin_unlock_irq+0x27/0x80
[  668.424976]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  668.429208]  ? lockdep_hardirqs_on+0x296/0x5b0
[  668.433823]  ? trace_hardirqs_on+0xbd/0x310
[  668.438140]  ? kasan_check_read+0x11/0x20
[  668.442301]  ? __run_timers+0x7da/0xc70
[  668.446324]  ? trace_hardirqs_off_caller+0x310/0x310
[  668.451429]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  668.455673]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  668.459922]  __run_timers+0x7e5/0xc70
[  668.463754]  ? timer_fixup_init+0x70/0x70
[  668.468784]  ? _raw_spin_unlock_irq+0x27/0x80
[  668.473277]  ? _raw_spin_unlock_irq+0x27/0x80
[  668.477783]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  668.482375]  ? trace_hardirqs_on+0xbd/0x310
[  668.486697]  ? kasan_check_read+0x11/0x20
[  668.490853]  ? finish_task_switch+0x1f4/0x910
[  668.495351]  ? trace_hardirqs_off_caller+0x310/0x310
[  668.500457]  ? compat_start_thread+0x80/0x80
[  668.504887]  ? pvclock_read_flags+0x160/0x160
[  668.509379]  ? __switch_to_asm+0x34/0x70
[  668.513440]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.518982]  ? check_preemption_disabled+0x48/0x280
[  668.524010]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  668.529550]  ? rcu_pm_notify+0xc0/0xc0
[  668.533437]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.538976]  ? check_preemption_disabled+0x48/0x280
[  668.544001]  run_timer_softirq+0x52/0xb0
[  668.548064]  ? rcu_read_lock_sched_held+0x14f/0x180
[  668.553084]  __do_softirq+0x308/0xb7e
[  668.557375]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  668.562136]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  668.567238]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  668.572685]  ? trace_hardirqs_on+0x310/0x310
[  668.577098]  ? schedule+0x108/0x460
[  668.580736]  ? trace_hardirqs_off+0xb8/0x310
[  668.585158]  ? smpboot_thread_fn+0x68b/0xa00
[  668.589565]  ? trace_hardirqs_on+0x310/0x310
[  668.593974]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  668.599523]  ? check_preemption_disabled+0x48/0x280
[  668.604544]  ? takeover_tasklets+0xa90/0xa90
[  668.608957]  run_ksoftirqd+0x5e/0x100
[  668.612772]  smpboot_thread_fn+0x68b/0xa00
[  668.617015]  ? sort_range+0x30/0x30
[  668.620645]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  668.625759]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  668.631308]  ? __kthread_parkme+0xfb/0x1a0
[  668.635544]  ? sort_range+0x30/0x30
[  668.639170]  kthread+0x35a/0x440
[  668.642541]  ? kthread_stop+0x900/0x900
[  668.646516]  ret_from_fork+0x3a/0x50
[  668.650251] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  668.650324] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  668.657271] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  668.657280] Call Trace:
[  668.663890] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  668.673107]  <IRQ>
[  668.675679] ksoftirqd/0 cpuset=/ mems_allowed=0
[  668.686333]  dump_stack+0x244/0x39d
[  668.696735]  ? dump_stack_print_info.cold.1+0x20/0x20
[  668.701951]  warn_alloc.cold.116+0xb7/0x1bd
[  668.706277]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  668.711123]  ? lock_downgrade+0x900/0x900
[  668.715282]  ? trace_hardirqs_off+0xb8/0x310
[  668.719702]  ? trace_hardirqs_off+0xb8/0x310
[  668.724120]  __alloc_pages_slowpath+0x2651/0x2de0
[  668.729002]  ? warn_alloc+0x120/0x120
[  668.732812]  ? warn_alloc+0x120/0x120
[  668.736614]  ? __lock_acquire+0x62f/0x4c20
[  668.740854]  ? warn_alloc+0x120/0x120
[  668.744655]  ? print_usage_bug+0xc0/0xc0
[  668.748722]  ? print_usage_bug+0xc0/0xc0
[  668.752797]  ? mark_held_locks+0x130/0x130
[  668.757038]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  668.762576]  ? should_fail+0x22d/0xd01
[  668.766461]  ? zap_class+0x640/0x640
[  668.770181]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  668.775289]  ? __lock_acquire+0x62f/0x4c20
[  668.779527]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  668.784630]  ? should_fail+0x22d/0xd01
[  668.788526]  ? mark_held_locks+0x130/0x130
[  668.792772]  ? mark_held_locks+0x130/0x130
[  668.797010]  ? lock_downgrade+0x900/0x900
[  668.801160]  ? zap_class+0x640/0x640
[  668.804875]  ? zap_class+0x640/0x640
[  668.808589]  ? zap_class+0x640/0x640
[  668.812300]  ? do_raw_spin_unlock+0xa7/0x330
[  668.816712]  ? trace_hardirqs_on+0x310/0x310
[  668.821127]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.826666]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.832216]  ? check_preemption_disabled+0x48/0x280
[  668.837243]  ? __lock_is_held+0xb5/0x140
[  668.841319]  __alloc_pages_nodemask+0xad8/0xea0
[  668.845989]  ? zap_class+0x640/0x640
[  668.849712]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  668.854759]  ? find_held_lock+0x36/0x1c0
[  668.858836]  ? ____cache_alloc_node+0x1c7/0x1e0
[  668.863507]  ? lock_downgrade+0x900/0x900
[  668.867664]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.873206]  cache_grow_begin+0xa5/0x8c0
[  668.877270]  ? do_raw_spin_unlock+0xa7/0x330
[  668.881690]  fallback_alloc+0x204/0x2e0
[  668.885672]  ____cache_alloc_node+0x1c7/0x1e0
[  668.890171]  kmem_cache_alloc_node+0xe3/0x730
[  668.894669]  ? lockdep_hardirqs_on+0x296/0x5b0
[  668.899264]  __alloc_skb+0x119/0x770
[  668.902981]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  668.908348]  ? netdev_alloc_frag+0x1f0/0x1f0
[  668.912773]  ? vprintk_default+0x28/0x30
[  668.916838]  ? vprintk_func+0x85/0x181
[  668.920724]  ? printk+0xa7/0xcf
[  668.924013]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  668.928783]  new_skb+0x26/0x1c0
[  668.932063]  aoecmd_cfg+0x279/0x7f0
[  668.935691]  ? find_held_lock+0x36/0x1c0
[  668.940016]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  668.944345]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  668.949894]  ? __lock_is_held+0xb5/0x140
[  668.953968]  discover_timer+0x50/0x60
[  668.957775]  call_timer_fn+0x272/0x920
[  668.961662]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  668.966513]  ? process_timeout+0x40/0x40
[  668.970583]  ? mark_held_locks+0xc7/0x130
[  668.974738]  ? _raw_spin_unlock_irq+0x27/0x80
[  668.979241]  ? _raw_spin_unlock_irq+0x27/0x80
[  668.983737]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  668.988599]  ? lockdep_hardirqs_on+0x296/0x5b0
[  668.993185]  ? trace_hardirqs_on+0xbd/0x310
[  668.997521]  ? kasan_check_read+0x11/0x20
[  669.001667]  ? __run_timers+0x7da/0xc70
[  669.005643]  ? trace_hardirqs_off_caller+0x310/0x310
[  669.010767]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  669.015606]  __run_timers+0x7e5/0xc70
[  669.019416]  ? timer_fixup_init+0x70/0x70
[  669.023568]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  669.028589]  ? zap_class+0x640/0x640
[  669.032307]  ? print_usage_bug+0xc0/0xc0
[  669.036374]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  669.041570]  ? find_held_lock+0x36/0x1c0
[  669.045640]  ? zap_class+0x640/0x640
[  669.049369]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  669.054914]  ? check_preemption_disabled+0x48/0x280
[  669.059942]  ? __lock_is_held+0xb5/0x140
[  669.064013]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  669.069556]  ? check_preemption_disabled+0x48/0x280
[  669.074580]  run_timer_softirq+0x52/0xb0
[  669.078642]  ? rcu_read_lock_sched_held+0x14f/0x180
[  669.083660]  __do_softirq+0x308/0xb7e
[  669.087463]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  669.091955]  ? lock_downgrade+0x900/0x900
[  669.096108]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  669.101220]  ? pvclock_read_flags+0x160/0x160
[  669.105722]  ? lapic_next_event+0x5a/0x90
[  669.109886]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  669.115431]  ? kvm_clock_read+0x18/0x30
[  669.119404]  ? kvm_sched_clock_read+0x9/0x20
[  669.123817]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  669.129399]  ? check_preemption_disabled+0x48/0x280
[  669.134423]  irq_exit+0x17f/0x1c0
[  669.137883]  smp_apic_timer_interrupt+0x1cb/0x760
[  669.142724]  ? smp_reschedule_interrupt+0x109/0x650
[  669.147760]  ? smp_call_function_single_interrupt+0x650/0x650
[  669.153648]  ? interrupt_entry+0xb5/0xc0
[  669.157713]  ? trace_hardirqs_off_caller+0xbb/0x310
[  669.162738]  ? trace_hardirqs_off_caller+0xbb/0x310
[  669.167771]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  669.172615]  ? trace_hardirqs_on_caller+0x310/0x310
[  669.177627]  ? trace_hardirqs_on_caller+0x310/0x310
[  669.182646]  ? task_prio+0x50/0x50
[  669.186188]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  669.191726]  ? check_preemption_disabled+0x48/0x280
[  669.196763]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  669.201617]  apic_timer_interrupt+0xf/0x20
[  669.205846]  </IRQ>
[  669.208084] RIP: 0010:dump_stack+0x358/0x39d
[  669.212492] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  669.231392] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  669.239098] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  669.246363] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  669.253627] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  669.260907] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  669.268173] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  669.275463]  ? dump_stack+0x34f/0x39d
[  669.279284]  ? dump_stack_print_info.cold.1+0x20/0x20
[  669.284477]  ? mark_held_locks+0x130/0x130
[  669.288711]  ? mark_held_locks+0x130/0x130
[  669.292956]  dump_header+0x27b/0xf72
[  669.296690]  ? pagefault_out_of_memory+0x197/0x197
[  669.301626]  ? __lock_acquire+0x62f/0x4c20
[  669.305864]  ? percpu_ref_get_many+0x240/0x240
[  669.310456]  ? print_usage_bug+0xc0/0xc0
[  669.314528]  ? zap_class+0x640/0x640
[  669.318247]  ? print_usage_bug+0xc0/0xc0
[  669.322312]  ? print_usage_bug+0xc0/0xc0
[  669.326378]  ? zap_class+0x640/0x640
[  669.330096]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  669.335636]  ? find_held_lock+0x36/0x1c0
[  669.339704]  ? mark_held_locks+0xc7/0x130
[  669.343858]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  669.348960]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  669.354061]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  669.358642]  ? trace_hardirqs_on+0xbd/0x310
[  669.362966]  ? kasan_check_read+0x11/0x20
[  669.367117]  ? ___ratelimit+0x3b4/0x672
[  669.371092]  ? trace_hardirqs_off_caller+0x310/0x310
[  669.376200]  ? trace_hardirqs_on+0x310/0x310
[  669.380613]  ? lock_downgrade+0x900/0x900
[  669.384772]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  669.389886]  ? ___ratelimit+0x3b9/0x672
[  669.393864]  ? idr_get_free+0xf70/0xf70
[  669.397838]  ? find_held_lock+0x36/0x1c0
[  669.401908]  oom_kill_process.cold.27+0x10/0x903
[  669.406667]  ? zap_class+0x640/0x640
[  669.410383]  ? check_preemption_disabled+0x48/0x280
[  669.415406]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  669.420337]  ? kasan_check_read+0x11/0x20
[  669.424482]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  669.429775]  ? oom_evaluate_task+0x540/0x540
[  669.434190]  ? find_held_lock+0x36/0x1c0
[  669.438259]  ? out_of_memory+0x974/0x1430
[  669.442416]  ? lock_downgrade+0x900/0x900
[  669.446564]  ? check_preemption_disabled+0x48/0x280
[  669.451582]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  669.456512]  ? kasan_check_read+0x11/0x20
[  669.460658]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  669.465931]  ? rcu_softirq_qs+0x20/0x20
[  669.469915]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  669.475462]  ? oom_evaluate_task+0x302/0x540
[  669.479873]  out_of_memory+0xa84/0x1430
[  669.483863]  ? oom_killer_disable+0x3a0/0x3a0
[  669.488357]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  669.493300]  ? __ww_mutex_check_waiters+0x160/0x160
[  669.498330]  __alloc_pages_slowpath+0x232c/0x2de0
[  669.503206]  ? warn_alloc+0x120/0x120
[  669.507012]  ? mark_held_locks+0x130/0x130
[  669.511277]  ? find_get_entry+0xaae/0x1120
[  669.515522]  ? filemap_map_pages+0x1a20/0x1a20
[  669.520114]  ? zap_class+0x640/0x640
[  669.523844]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  669.529384]  ? check_preemption_disabled+0x48/0x280
[  669.534405]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  669.539942]  ? should_fail+0x22d/0xd01
[  669.543837]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  669.548942]  ? zap_class+0x640/0x640
[  669.552683]  ? __lock_is_held+0xb5/0x140
[  669.556760]  ? mark_held_locks+0x130/0x130
[  669.561000]  ? lock_release+0xa00/0xa00
[  669.564979]  ? perf_trace_sched_process_exec+0x860/0x860
[  669.570428]  ? xa_load+0x2ba/0x460
[  669.573968]  ? lock_downgrade+0x900/0x900
[  669.578126]  ? __might_sleep+0x95/0x190
[  669.582111]  __alloc_pages_nodemask+0xad8/0xea0
[  669.586792]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  669.591809]  ? __page_cache_alloc+0x191/0x5c0
[  669.596303]  ? xa_load+0x2e1/0x460
[  669.599841]  ? xa_clear_mark+0x40/0x40
[  669.603732]  ? zap_class+0x640/0x640
[  669.607470]  ? zap_class+0x640/0x640
[  669.611188]  ? zap_class+0x640/0x640
[  669.614902]  ? __do_page_cache_readahead+0x663/0x810
[  669.620012]  ? find_held_lock+0x36/0x1c0
[  669.624084]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  669.629631]  alloc_pages_current+0x173/0x350
[  669.634047]  __page_cache_alloc+0x38c/0x5c0
[  669.638366]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  669.643304]  ? kasan_check_read+0x11/0x20
[  669.647450]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  669.652728]  ? generic_perform_write+0x6a0/0x6a0
[  669.657596]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  669.663138]  ? check_preemption_disabled+0x48/0x280
[  669.668165]  filemap_fault+0x1595/0x25f0
[  669.672239]  ? __lock_page_or_retry+0xa00/0xa00
[  669.676913]  ? mark_held_locks+0x130/0x130
[  669.681159]  ? filemap_map_pages+0xd6b/0x1a20
[  669.685659]  ? lock_downgrade+0x900/0x900
[  669.689813]  ? check_preemption_disabled+0x48/0x280
[  669.694840]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  669.699774]  ? kasan_check_read+0x11/0x20
[  669.703924]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  669.709201]  ? rcu_softirq_qs+0x20/0x20
[  669.713195]  ? filemap_map_pages+0xd92/0x1a20
[  669.717694]  ? print_usage_bug+0xc0/0xc0
[  669.721768]  ? find_get_entries_tag+0x1400/0x1400
[  669.726614]  ? __kasan_slab_free+0x102/0x150
[  669.731020]  ? kasan_slab_free+0xe/0x10
[  669.734995]  ? kmem_cache_free+0x83/0x290
[  669.739141]  ? __sigqueue_free.part.29+0x74/0x90
[  669.743919]  ? lock_acquire+0x1ed/0x520
[  669.747893]  ? ext4_filemap_fault+0x7a/0xad
[  669.752223]  ? lock_release+0xa00/0xa00
[  669.756196]  ? perf_trace_sched_process_exec+0x860/0x860
[  669.761647]  ? print_usage_bug+0xc0/0xc0
[  669.765711]  ? print_usage_bug+0xc0/0xc0
[  669.769789]  ? down_read+0x8d/0x120
[  669.773418]  ? ext4_filemap_fault+0x7a/0xad
[  669.777741]  ? __down_interruptible+0x700/0x700
[  669.782431]  ext4_filemap_fault+0x82/0xad
[  669.786585]  __do_fault+0x100/0x6b0
[  669.790217]  ? pmd_devmap_trans_unstable+0x220/0x220
[  669.795325]  ? mark_held_locks+0x130/0x130
[  669.799563]  ? mark_held_locks+0x130/0x130
[  669.803800]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  669.809338]  ? rcu_pm_notify+0xc0/0xc0
[  669.813238]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  669.818789]  __handle_mm_fault+0x3ea0/0x5be0
[  669.823209]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  669.828051]  ? _raw_spin_unlock_irq+0x27/0x80
[  669.832547]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  669.837133]  ? trace_hardirqs_on+0xbd/0x310
[  669.841454]  ? kasan_check_read+0x11/0x20
[  669.845604]  ? __set_current_blocked+0xdf/0x120
[  669.850278]  ? trace_hardirqs_off_caller+0x310/0x310
[  669.855394]  ? zap_class+0x640/0x640
[  669.859104]  ? zap_class+0x640/0x640
[  669.862825]  ? find_held_lock+0x36/0x1c0
[  669.866897]  ? handle_mm_fault+0x42a/0xc70
[  669.871132]  ? lock_downgrade+0x900/0x900
[  669.875287]  ? check_preemption_disabled+0x48/0x280
[  669.880310]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  669.885239]  ? kasan_check_read+0x11/0x20
[  669.889395]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  669.894672]  ? rcu_softirq_qs+0x20/0x20
[  669.898649]  ? trace_hardirqs_off_caller+0x310/0x310
[  669.903760]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  669.909305]  ? check_preemption_disabled+0x48/0x280
[  669.914329]  handle_mm_fault+0x54f/0xc70
[  669.918393]  ? __handle_mm_fault+0x5be0/0x5be0
[  669.922980]  ? find_vma+0x34/0x190
[  669.926526]  __do_page_fault+0x5e8/0xe60
[  669.930593]  ? exit_to_usermode_loop+0x1f4/0x380
[  669.935357]  do_page_fault+0xf2/0x7e0
[  669.939162]  ? vmalloc_sync_all+0x30/0x30
[  669.943310]  ? error_entry+0x70/0xd0
[  669.947026]  ? trace_hardirqs_off_caller+0xbb/0x310
[  669.952041]  ? trace_hardirqs_on_caller+0xc0/0x310
[  669.956970]  ? syscall_return_slowpath+0x5e0/0x5e0
[  669.961899]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  669.966742]  ? trace_hardirqs_on_caller+0x310/0x310
[  669.971777]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  669.977236]  ? prepare_exit_to_usermode+0x291/0x3b0
[  669.982261]  ? page_fault+0x8/0x30
[  669.985810]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  669.990661]  ? page_fault+0x8/0x30
[  669.994205]  page_fault+0x1e/0x30
[  669.997666] RIP: 0033:0x45db60
[  670.000875] Code: Bad RIP value.
[  670.004238] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  670.009603] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  670.016868] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  670.024133] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  670.031398] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  670.038667] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  670.045967] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  670.045972] warn_alloc_show_mem: 1 callbacks suppressed
[  670.045979] Mem-Info:
[  670.052820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  670.058188] active_anon:42936 inactive_anon:306 isolated_anon:0
[  670.058188]  active_file:13 inactive_file:13 isolated_file:0
[  670.058188]  unevictable:0 dirty:0 writeback:0 unstable:0
[  670.058188]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  670.058188]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  670.058188]  free:13785 free_pcp:492 free_cma:0
[  670.060560] Call Trace:
[  670.069949] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  670.102722]  dump_stack+0x244/0x39d
[  670.105295] 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
[  670.132912]  ? dump_stack_print_info.cold.1+0x20/0x20
[  670.136504] lowmem_reserve[]: 0 2818 6321 6321
[  670.162619]  warn_alloc.cold.116+0xb7/0x1bd
[  670.167771] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  670.172357]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  670.176650] lowmem_reserve[]: 0 0 3503 3503
[  670.203803]  ? lock_downgrade+0x900/0x900
[  670.208616] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  670.212933]  ? trace_hardirqs_off+0xb8/0x310
[  670.217047] lowmem_reserve[]: 0 0 0 0
[  670.246205]  ? trace_hardirqs_off+0xb8/0x310
[  670.250582] 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
[  670.254384]  __alloc_pages_slowpath+0x2651/0x2de0
[  670.258765] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  670.272311]  ? warn_alloc+0x120/0x120
[  670.277104] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  670.292271]  ? print_usage_bug+0xc0/0xc0
[  670.296057] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  670.311213]  ? warn_alloc+0x120/0x120
[  670.315252] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  670.324075]  ? warn_alloc+0x120/0x120
[  670.327851] 380 total pagecache pages
[  670.336418]  ? print_usage_bug+0xc0/0xc0
[  670.340202] 0 pages in swap cache
[  670.343987]  ? print_usage_bug+0xc0/0xc0
[  670.348023] Swap cache stats: add 0, delete 0, find 0/0
[  670.351468]  ? __lock_acquire+0x62f/0x4c20
[  670.355505] Free swap  = 0kB
[  670.360865]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  670.365089] Total swap = 0kB
[  670.368100]  ? should_fail+0x22d/0xd01
[  670.373611] 1965979 pages RAM
[  670.376623]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  670.380482] 0 pages HighMem/MovableOnly
[  670.383579]  ? __lock_acquire+0x62f/0x4c20
[  670.388659] 342854 pages reserved
[  670.392627]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  670.396838] 0 pages cma reserved
[  670.400277]  ? __lock_acquire+0x62f/0x4c20
[  670.400293]  ? should_fail+0x22d/0xd01
[  670.405427] aoe: skb alloc failure
[  670.408725]  ? find_held_lock+0x36/0x1c0
[  670.408758]  ? mark_held_locks+0x130/0x130
[  670.408782]  ? mark_held_locks+0x130/0x130
[  670.413021] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  670.416876]  ? zap_class+0x640/0x640
[  670.420389] syz-fuzzer cpuset=/ mems_allowed=0
[  670.424443]  ? mark_held_locks+0xc7/0x130
[  670.455478]  ? do_raw_spin_unlock+0xa7/0x330
[  670.459888]  ? zap_class+0x640/0x640
[  670.463603]  ? print_usage_bug+0xc0/0xc0
[  670.467673]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  670.473210]  ? check_preemption_disabled+0x48/0x280
[  670.478236]  ? __lock_is_held+0xb5/0x140
[  670.482303]  __alloc_pages_nodemask+0xad8/0xea0
[  670.486975]  ? zap_class+0x640/0x640
[  670.490692]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  670.495720]  ? find_held_lock+0x36/0x1c0
[  670.499808]  ? ____cache_alloc_node+0x1c7/0x1e0
[  670.504477]  ? lock_downgrade+0x900/0x900
[  670.508632]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  670.514174]  cache_grow_begin+0xa5/0x8c0
[  670.518238]  ? do_raw_spin_unlock+0xa7/0x330
[  670.522656]  fallback_alloc+0x204/0x2e0
[  670.526635]  ____cache_alloc_node+0x1c7/0x1e0
[  670.531135]  kmem_cache_alloc_node+0xe3/0x730
[  670.535631]  ? ipv6_get_ifaddr+0x42e/0x620
[  670.539892]  __alloc_skb+0x119/0x770
[  670.543612]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  670.548895]  ? netdev_alloc_frag+0x1f0/0x1f0
[  670.553787]  ? lock_downgrade+0x900/0x900
[  670.557950]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  670.563491]  ? refcount_sub_and_test_checked+0x203/0x310
[  670.568943]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  670.574393]  ? addrconf_rs_timer+0x690/0x690
[  670.578816]  ndisc_alloc_skb+0x144/0x340
[  670.582887]  ndisc_send_rs+0x331/0x6e0
[  670.586790]  addrconf_rs_timer+0x314/0x690
[  670.591030]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  670.595276]  call_timer_fn+0x272/0x920
[  670.599168]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  670.603402]  ? process_timeout+0x40/0x40
[  670.607468]  ? __run_timers+0x7da/0xc70
[  670.611448]  ? _raw_spin_unlock_irq+0x27/0x80
[  670.615940]  ? _raw_spin_unlock_irq+0x27/0x80
[  670.620446]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  670.624682]  ? lockdep_hardirqs_on+0x296/0x5b0
[  670.629264]  ? trace_hardirqs_on+0xbd/0x310
[  670.633599]  ? kasan_check_read+0x11/0x20
[  670.637742]  ? __run_timers+0x7da/0xc70
[  670.641736]  ? trace_hardirqs_off_caller+0x310/0x310
[  670.646864]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  670.651094]  __run_timers+0x7e5/0xc70
[  670.654905]  ? timer_fixup_init+0x70/0x70
[  670.659052]  ? _raw_spin_unlock_irq+0x27/0x80
[  670.663543]  ? _raw_spin_unlock_irq+0x27/0x80
[  670.668039]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  670.672627]  ? trace_hardirqs_on+0xbd/0x310
[  670.676951]  ? kasan_check_read+0x11/0x20
[  670.681101]  ? finish_task_switch+0x1f4/0x910
[  670.685758]  ? trace_hardirqs_off_caller+0x310/0x310
[  670.690871]  ? compat_start_thread+0x80/0x80
[  670.695300]  ? pvclock_read_flags+0x160/0x160
[  670.699795]  ? __switch_to_asm+0x34/0x70
[  670.703860]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  670.709405]  ? check_preemption_disabled+0x48/0x280
[  670.714430]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  670.719972]  ? rcu_pm_notify+0xc0/0xc0
[  670.723859]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  670.729396]  ? check_preemption_disabled+0x48/0x280
[  670.734420]  run_timer_softirq+0x52/0xb0
[  670.738509]  ? rcu_read_lock_sched_held+0x14f/0x180
[  670.743536]  __do_softirq+0x308/0xb7e
[  670.747339]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  670.752102]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  670.757204]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  670.762653]  ? trace_hardirqs_on+0x310/0x310
[  670.767070]  ? schedule+0x108/0x460
[  670.770707]  ? trace_hardirqs_off+0xb8/0x310
[  670.775119]  ? smpboot_thread_fn+0x68b/0xa00
[  670.779531]  ? trace_hardirqs_on+0x310/0x310
[  670.783952]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  670.789494]  ? check_preemption_disabled+0x48/0x280
[  670.794513]  ? takeover_tasklets+0xa90/0xa90
[  670.798922]  run_ksoftirqd+0x5e/0x100
[  670.802723]  smpboot_thread_fn+0x68b/0xa00
[  670.806968]  ? sort_range+0x30/0x30
[  670.810605]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  670.815707]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  670.821243]  ? __kthread_parkme+0xfb/0x1a0
[  670.825480]  ? sort_range+0x30/0x30
[  670.829104]  kthread+0x35a/0x440
[  670.832469]  ? kthread_stop+0x900/0x900
[  670.836445]  ret_from_fork+0x3a/0x50
[  670.840180] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  670.840255] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  670.847195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  670.847204] Call Trace:
[  670.853792] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  670.863020]  <IRQ>
[  670.865590] ksoftirqd/0 cpuset=/ mems_allowed=0
[  670.875897]  dump_stack+0x244/0x39d
[  670.886297]  ? dump_stack_print_info.cold.1+0x20/0x20
[  670.891500]  warn_alloc.cold.116+0xb7/0x1bd
[  670.895827]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  670.900673]  ? lock_downgrade+0x900/0x900
[  670.904834]  ? trace_hardirqs_off+0xb8/0x310
[  670.909252]  ? trace_hardirqs_off+0xb8/0x310
[  670.913672]  __alloc_pages_slowpath+0x2651/0x2de0
[  670.918561]  ? warn_alloc+0x120/0x120
[  670.922375]  ? warn_alloc+0x120/0x120
[  670.926177]  ? __lock_acquire+0x62f/0x4c20
[  670.930413]  ? warn_alloc+0x120/0x120
[  670.934218]  ? print_usage_bug+0xc0/0xc0
[  670.938285]  ? print_usage_bug+0xc0/0xc0
[  670.942348]  ? mark_held_locks+0x130/0x130
[  670.946613]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  670.952154]  ? should_fail+0x22d/0xd01
[  670.956044]  ? zap_class+0x640/0x640
[  670.959773]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  670.964880]  ? __lock_acquire+0x62f/0x4c20
[  670.969130]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  670.974235]  ? should_fail+0x22d/0xd01
[  670.978144]  ? mark_held_locks+0x130/0x130
[  670.982387]  ? mark_held_locks+0x130/0x130
[  670.986625]  ? lock_downgrade+0x900/0x900
[  670.990784]  ? zap_class+0x640/0x640
[  670.994506]  ? zap_class+0x640/0x640
[  670.998227]  ? zap_class+0x640/0x640
[  671.001943]  ? do_raw_spin_unlock+0xa7/0x330
[  671.006357]  ? trace_hardirqs_on+0x310/0x310
[  671.010781]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  671.016324]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  671.021872]  ? check_preemption_disabled+0x48/0x280
[  671.026912]  ? __lock_is_held+0xb5/0x140
[  671.030987]  __alloc_pages_nodemask+0xad8/0xea0
[  671.035663]  ? zap_class+0x640/0x640
[  671.039393]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  671.044433]  ? find_held_lock+0x36/0x1c0
[  671.048513]  ? ____cache_alloc_node+0x1c7/0x1e0
[  671.053190]  ? lock_downgrade+0x900/0x900
[  671.057355]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  671.062906]  cache_grow_begin+0xa5/0x8c0
[  671.066976]  ? do_raw_spin_unlock+0xa7/0x330
[  671.071405]  fallback_alloc+0x204/0x2e0
[  671.075394]  ____cache_alloc_node+0x1c7/0x1e0
[  671.079905]  kmem_cache_alloc_node+0xe3/0x730
[  671.084407]  ? lockdep_hardirqs_on+0x296/0x5b0
[  671.089012]  __alloc_skb+0x119/0x770
[  671.092732]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  671.098128]  ? netdev_alloc_frag+0x1f0/0x1f0
[  671.102556]  ? vprintk_default+0x28/0x30
[  671.106630]  ? vprintk_func+0x85/0x181
[  671.110531]  ? printk+0xa7/0xcf
[  671.113826]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  671.118619]  new_skb+0x26/0x1c0
[  671.121913]  aoecmd_cfg+0x279/0x7f0
[  671.125550]  ? find_held_lock+0x36/0x1c0
[  671.129626]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  671.134018]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  671.139577]  ? __lock_is_held+0xb5/0x140
[  671.143659]  discover_timer+0x50/0x60
[  671.147469]  call_timer_fn+0x272/0x920
[  671.151364]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  671.156213]  ? process_timeout+0x40/0x40
[  671.160299]  ? mark_held_locks+0xc7/0x130
[  671.164460]  ? _raw_spin_unlock_irq+0x27/0x80
[  671.168963]  ? _raw_spin_unlock_irq+0x27/0x80
[  671.173464]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  671.178318]  ? lockdep_hardirqs_on+0x296/0x5b0
[  671.182908]  ? trace_hardirqs_on+0xbd/0x310
[  671.187238]  ? kasan_check_read+0x11/0x20
[  671.191395]  ? __run_timers+0x7da/0xc70
[  671.195377]  ? trace_hardirqs_off_caller+0x310/0x310
[  671.200500]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  671.205351]  __run_timers+0x7e5/0xc70
[  671.209168]  ? timer_fixup_init+0x70/0x70
[  671.213327]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  671.218356]  ? zap_class+0x640/0x640
[  671.222086]  ? print_usage_bug+0xc0/0xc0
[  671.226157]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  671.231361]  ? find_held_lock+0x36/0x1c0
[  671.235434]  ? zap_class+0x640/0x640
[  671.239164]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  671.244709]  ? check_preemption_disabled+0x48/0x280
[  671.249761]  ? __lock_is_held+0xb5/0x140
[  671.253836]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  671.259384]  ? check_preemption_disabled+0x48/0x280
[  671.264419]  run_timer_softirq+0x52/0xb0
[  671.268487]  ? rcu_read_lock_sched_held+0x14f/0x180
[  671.273516]  __do_softirq+0x308/0xb7e
[  671.277331]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  671.281835]  ? lock_downgrade+0x900/0x900
[  671.285999]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  671.291122]  ? pvclock_read_flags+0x160/0x160
[  671.295631]  ? lapic_next_event+0x5a/0x90
[  671.299798]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  671.305348]  ? kvm_clock_read+0x18/0x30
[  671.309334]  ? kvm_sched_clock_read+0x9/0x20
[  671.313771]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  671.319321]  ? check_preemption_disabled+0x48/0x280
[  671.324357]  irq_exit+0x17f/0x1c0
[  671.327824]  smp_apic_timer_interrupt+0x1cb/0x760
[  671.332675]  ? smp_reschedule_interrupt+0x109/0x650
[  671.337703]  ? smp_call_function_single_interrupt+0x650/0x650
[  671.343599]  ? interrupt_entry+0xb5/0xc0
[  671.347669]  ? trace_hardirqs_off_caller+0xbb/0x310
[  671.352691]  ? trace_hardirqs_off_caller+0xbb/0x310
[  671.357715]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  671.362589]  ? trace_hardirqs_on_caller+0x310/0x310
[  671.367612]  ? trace_hardirqs_on_caller+0x310/0x310
[  671.372636]  ? task_prio+0x50/0x50
[  671.376189]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  671.381737]  ? check_preemption_disabled+0x48/0x280
[  671.386795]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  671.391656]  apic_timer_interrupt+0xf/0x20
[  671.395894]  </IRQ>
[  671.398142] RIP: 0010:dump_stack+0x358/0x39d
[  671.402560] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  671.421464] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  671.429175] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  671.436448] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  671.443722] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  671.451010] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  671.458284] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  671.465580]  ? dump_stack+0x34f/0x39d
[  671.469404]  ? dump_stack_print_info.cold.1+0x20/0x20
[  671.474604]  ? mark_held_locks+0x130/0x130
[  671.478848]  ? mark_held_locks+0x130/0x130
[  671.483096]  dump_header+0x27b/0xf72
[  671.486835]  ? pagefault_out_of_memory+0x197/0x197
[  671.491800]  ? __lock_acquire+0x62f/0x4c20
[  671.496050]  ? percpu_ref_get_many+0x240/0x240
[  671.500645]  ? print_usage_bug+0xc0/0xc0
[  671.504719]  ? zap_class+0x640/0x640
[  671.508463]  ? print_usage_bug+0xc0/0xc0
[  671.512529]  ? print_usage_bug+0xc0/0xc0
[  671.516598]  ? zap_class+0x640/0x640
[  671.520329]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  671.525880]  ? find_held_lock+0x36/0x1c0
[  671.529959]  ? mark_held_locks+0xc7/0x130
[  671.534116]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  671.539229]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  671.544343]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  671.548938]  ? trace_hardirqs_on+0xbd/0x310
[  671.553274]  ? kasan_check_read+0x11/0x20
[  671.557432]  ? ___ratelimit+0x3b4/0x672
[  671.561414]  ? trace_hardirqs_off_caller+0x310/0x310
[  671.566525]  ? trace_hardirqs_on+0x310/0x310
[  671.570940]  ? lock_downgrade+0x900/0x900
[  671.575114]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  671.580228]  ? ___ratelimit+0x3b9/0x672
[  671.584214]  ? idr_get_free+0xf70/0xf70
[  671.588197]  ? find_held_lock+0x36/0x1c0
[  671.592280]  oom_kill_process.cold.27+0x10/0x903
[  671.597048]  ? zap_class+0x640/0x640
[  671.600787]  ? check_preemption_disabled+0x48/0x280
[  671.605888]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  671.610833]  ? kasan_check_read+0x11/0x20
[  671.614988]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  671.620283]  ? oom_evaluate_task+0x540/0x540
[  671.624706]  ? find_held_lock+0x36/0x1c0
[  671.629741]  ? out_of_memory+0x974/0x1430
[  671.633921]  ? lock_downgrade+0x900/0x900
[  671.638080]  ? check_preemption_disabled+0x48/0x280
[  671.643193]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  671.648133]  ? kasan_check_read+0x11/0x20
[  671.652297]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  671.657581]  ? rcu_softirq_qs+0x20/0x20
[  671.661572]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  671.667119]  ? oom_evaluate_task+0x302/0x540
[  671.671539]  out_of_memory+0xa84/0x1430
[  671.675534]  ? oom_killer_disable+0x3a0/0x3a0
[  671.680037]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  671.684980]  ? __ww_mutex_check_waiters+0x160/0x160
[  671.690015]  __alloc_pages_slowpath+0x232c/0x2de0
[  671.694896]  ? warn_alloc+0x120/0x120
[  671.698707]  ? mark_held_locks+0x130/0x130
[  671.702955]  ? find_get_entry+0xaae/0x1120
[  671.707212]  ? filemap_map_pages+0x1a20/0x1a20
[  671.711812]  ? zap_class+0x640/0x640
[  671.715545]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  671.721091]  ? check_preemption_disabled+0x48/0x280
[  671.726118]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  671.731664]  ? should_fail+0x22d/0xd01
[  671.735567]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  671.740680]  ? zap_class+0x640/0x640
[  671.744427]  ? __lock_is_held+0xb5/0x140
[  671.748502]  ? mark_held_locks+0x130/0x130
[  671.752768]  ? lock_release+0xa00/0xa00
[  671.756772]  ? perf_trace_sched_process_exec+0x860/0x860
[  671.762232]  ? xa_load+0x2ba/0x460
[  671.765799]  ? lock_downgrade+0x900/0x900
[  671.769964]  ? __might_sleep+0x95/0x190
[  671.773956]  __alloc_pages_nodemask+0xad8/0xea0
[  671.778644]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  671.783672]  ? __page_cache_alloc+0x191/0x5c0
[  671.788174]  ? xa_load+0x2e1/0x460
[  671.791724]  ? xa_clear_mark+0x40/0x40
[  671.795638]  ? zap_class+0x640/0x640
[  671.799367]  ? zap_class+0x640/0x640
[  671.803092]  ? zap_class+0x640/0x640
[  671.806817]  ? __do_page_cache_readahead+0x663/0x810
[  671.811933]  ? find_held_lock+0x36/0x1c0
[  671.816007]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  671.821562]  alloc_pages_current+0x173/0x350
[  671.825988]  __page_cache_alloc+0x38c/0x5c0
[  671.830320]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  671.835262]  ? kasan_check_read+0x11/0x20
[  671.839430]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  671.844722]  ? generic_perform_write+0x6a0/0x6a0
[  671.849510]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  671.855058]  ? check_preemption_disabled+0x48/0x280
[  671.860092]  filemap_fault+0x1595/0x25f0
[  671.864174]  ? __lock_page_or_retry+0xa00/0xa00
[  671.868854]  ? mark_held_locks+0x130/0x130
[  671.873106]  ? filemap_map_pages+0xd6b/0x1a20
[  671.877614]  ? lock_downgrade+0x900/0x900
[  671.881786]  ? check_preemption_disabled+0x48/0x280
[  671.886821]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  671.891780]  ? kasan_check_read+0x11/0x20
[  671.895936]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  671.901220]  ? rcu_softirq_qs+0x20/0x20
[  671.905215]  ? filemap_map_pages+0xd92/0x1a20
[  671.909721]  ? print_usage_bug+0xc0/0xc0
[  671.913819]  ? find_get_entries_tag+0x1400/0x1400
[  671.918670]  ? __kasan_slab_free+0x102/0x150
[  671.923098]  ? kasan_slab_free+0xe/0x10
[  671.927077]  ? kmem_cache_free+0x83/0x290
[  671.931231]  ? __sigqueue_free.part.29+0x74/0x90
[  671.936017]  ? lock_acquire+0x1ed/0x520
[  671.939997]  ? ext4_filemap_fault+0x7a/0xad
[  671.944335]  ? lock_release+0xa00/0xa00
[  671.948318]  ? perf_trace_sched_process_exec+0x860/0x860
[  671.953793]  ? print_usage_bug+0xc0/0xc0
[  671.957863]  ? print_usage_bug+0xc0/0xc0
[  671.961946]  ? down_read+0x8d/0x120
[  671.965577]  ? ext4_filemap_fault+0x7a/0xad
[  671.969904]  ? __down_interruptible+0x700/0x700
[  671.974594]  ext4_filemap_fault+0x82/0xad
[  671.978777]  __do_fault+0x100/0x6b0
[  671.982421]  ? pmd_devmap_trans_unstable+0x220/0x220
[  671.987538]  ? mark_held_locks+0x130/0x130
[  671.991799]  ? mark_held_locks+0x130/0x130
[  671.996045]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  672.001590]  ? rcu_pm_notify+0xc0/0xc0
[  672.005494]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  672.011044]  __handle_mm_fault+0x3ea0/0x5be0
[  672.015469]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  672.020322]  ? _raw_spin_unlock_irq+0x27/0x80
[  672.024827]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  672.029418]  ? trace_hardirqs_on+0xbd/0x310
[  672.033765]  ? kasan_check_read+0x11/0x20
[  672.037923]  ? __set_current_blocked+0xdf/0x120
[  672.042605]  ? trace_hardirqs_off_caller+0x310/0x310
[  672.047734]  ? zap_class+0x640/0x640
[  672.051480]  ? zap_class+0x640/0x640
[  672.055211]  ? find_held_lock+0x36/0x1c0
[  672.059296]  ? handle_mm_fault+0x42a/0xc70
[  672.063542]  ? lock_downgrade+0x900/0x900
[  672.067698]  ? check_preemption_disabled+0x48/0x280
[  672.072727]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  672.077683]  ? kasan_check_read+0x11/0x20
[  672.081844]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  672.087134]  ? rcu_softirq_qs+0x20/0x20
[  672.091120]  ? trace_hardirqs_off_caller+0x310/0x310
[  672.096237]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  672.101800]  ? check_preemption_disabled+0x48/0x280
[  672.106839]  handle_mm_fault+0x54f/0xc70
[  672.110924]  ? __handle_mm_fault+0x5be0/0x5be0
[  672.115522]  ? find_vma+0x34/0x190
[  672.119080]  __do_page_fault+0x5e8/0xe60
[  672.123155]  ? exit_to_usermode_loop+0x1f4/0x380
[  672.127931]  do_page_fault+0xf2/0x7e0
[  672.131740]  ? vmalloc_sync_all+0x30/0x30
[  672.135921]  ? error_entry+0x70/0xd0
[  672.139647]  ? trace_hardirqs_off_caller+0xbb/0x310
[  672.144672]  ? trace_hardirqs_on_caller+0xc0/0x310
[  672.149610]  ? syscall_return_slowpath+0x5e0/0x5e0
[  672.154546]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  672.159401]  ? trace_hardirqs_on_caller+0x310/0x310
[  672.164427]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  672.169897]  ? prepare_exit_to_usermode+0x291/0x3b0
[  672.175034]  ? page_fault+0x8/0x30
[  672.178593]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  672.183455]  ? page_fault+0x8/0x30
[  672.187005]  page_fault+0x1e/0x30
[  672.190468] RIP: 0033:0x45db60
[  672.193681] Code: Bad RIP value.
[  672.197052] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  672.202416] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  672.209689] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  672.216962] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  672.224237] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  672.231514] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  672.238819] warn_alloc_show_mem: 1 callbacks suppressed
[  672.238830] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  672.238832] Mem-Info:
[  672.238863] active_anon:42936 inactive_anon:306 isolated_anon:0
[  672.238863]  active_file:13 inactive_file:13 isolated_file:0
[  672.238863]  unevictable:0 dirty:0 writeback:0 unstable:0
[  672.238863]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  672.238863]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  672.238863]  free:13785 free_pcp:492 free_cma:0
[  672.244207] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  672.244215] Call Trace:
[  672.251069] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  672.253489]  dump_stack+0x244/0x39d
[  672.286309] 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
[  672.295815]  ? dump_stack_print_info.cold.1+0x20/0x20
[  672.298373] lowmem_reserve[]: 0 2818 6321 6321
[  672.325983]  warn_alloc.cold.116+0xb7/0x1bd
[  672.329587] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  672.355710]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  672.360878] lowmem_reserve[]: 0 0 3503 3503
[  672.365470]  ? lock_downgrade+0x900/0x900
[  672.369789] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  672.396958]  ? trace_hardirqs_off+0xb8/0x310
[  672.401788] lowmem_reserve[]: 0 0 0 0
[  672.406120]  ? trace_hardirqs_off+0xb8/0x310
[  672.410246] 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
[  672.439410]  __alloc_pages_slowpath+0x2651/0x2de0
[  672.443796] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  672.447623]  ? warn_alloc+0x120/0x120
[  672.451991] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  672.465521]  ? print_usage_bug+0xc0/0xc0
[  672.470350] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  672.485522]  ? warn_alloc+0x120/0x120
[  672.489311] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  672.504488]  ? warn_alloc+0x120/0x120
[  672.508529] 380 total pagecache pages
[  672.517366]  ? print_usage_bug+0xc0/0xc0
[  672.521153] 0 pages in swap cache
[  672.529732]  ? print_usage_bug+0xc0/0xc0
[  672.533542] Swap cache stats: add 0, delete 0, find 0/0
[  672.537342]  ? __lock_acquire+0x62f/0x4c20
[  672.541385] Free swap  = 0kB
[  672.544849]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  672.548886] Total swap = 0kB
[  672.554729]  ? should_fail+0x22d/0xd01
[  672.558969] 1965979 pages RAM
[  672.561992]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  672.567510] 0 pages HighMem/MovableOnly
[  672.570531]  ? __lock_acquire+0x62f/0x4c20
[  672.574400] 342854 pages reserved
[  672.577504]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  672.582586] 0 pages cma reserved
[  672.586558]  ? __lock_acquire+0x62f/0x4c20
[  672.590847] aoe: skb alloc failure
[  672.594235]  ? should_fail+0x22d/0xd01
[  672.594251]  ? find_held_lock+0x36/0x1c0
[  672.599411] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  672.602720]  ? mark_held_locks+0x130/0x130
[  672.606936] syz-fuzzer cpuset=/ mems_allowed=0
[  672.610476]  ? mark_held_locks+0x130/0x130
[  672.641630]  ? zap_class+0x640/0x640
[  672.645355]  ? mark_held_locks+0xc7/0x130
[  672.649512]  ? do_raw_spin_unlock+0xa7/0x330
[  672.653927]  ? zap_class+0x640/0x640
[  672.657651]  ? print_usage_bug+0xc0/0xc0
[  672.661725]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  672.667298]  ? check_preemption_disabled+0x48/0x280
[  672.672336]  ? __lock_is_held+0xb5/0x140
[  672.676410]  __alloc_pages_nodemask+0xad8/0xea0
[  672.681087]  ? zap_class+0x640/0x640
[  672.684964]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  672.689998]  ? find_held_lock+0x36/0x1c0
[  672.694081]  ? ____cache_alloc_node+0x1c7/0x1e0
[  672.698782]  ? lock_downgrade+0x900/0x900
[  672.702950]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  672.708501]  cache_grow_begin+0xa5/0x8c0
[  672.712566]  ? do_raw_spin_unlock+0xa7/0x330
[  672.716989]  fallback_alloc+0x204/0x2e0
[  672.720978]  ____cache_alloc_node+0x1c7/0x1e0
[  672.725486]  kmem_cache_alloc_node+0xe3/0x730
[  672.729990]  ? ipv6_get_ifaddr+0x42e/0x620
[  672.734368]  __alloc_skb+0x119/0x770
[  672.738087]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  672.743374]  ? netdev_alloc_frag+0x1f0/0x1f0
[  672.747807]  ? lock_downgrade+0x900/0x900
[  672.751973]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  672.757522]  ? refcount_sub_and_test_checked+0x203/0x310
[  672.762984]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  672.768441]  ? addrconf_rs_timer+0x690/0x690
[  672.772873]  ndisc_alloc_skb+0x144/0x340
[  672.776945]  ndisc_send_rs+0x331/0x6e0
[  672.780861]  addrconf_rs_timer+0x314/0x690
[  672.785110]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  672.789369]  call_timer_fn+0x272/0x920
[  672.793263]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  672.797504]  ? process_timeout+0x40/0x40
[  672.801584]  ? __run_timers+0x7da/0xc70
[  672.805569]  ? _raw_spin_unlock_irq+0x27/0x80
[  672.810071]  ? _raw_spin_unlock_irq+0x27/0x80
[  672.814573]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  672.818821]  ? lockdep_hardirqs_on+0x296/0x5b0
[  672.823416]  ? trace_hardirqs_on+0xbd/0x310
[  672.827771]  ? kasan_check_read+0x11/0x20
[  672.831927]  ? __run_timers+0x7da/0xc70
[  672.835909]  ? trace_hardirqs_off_caller+0x310/0x310
[  672.841029]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  672.845278]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  672.849522]  __run_timers+0x7e5/0xc70
[  672.853338]  ? timer_fixup_init+0x70/0x70
[  672.857493]  ? _raw_spin_unlock_irq+0x27/0x80
[  672.861992]  ? _raw_spin_unlock_irq+0x27/0x80
[  672.866500]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  672.871094]  ? trace_hardirqs_on+0xbd/0x310
[  672.875421]  ? kasan_check_read+0x11/0x20
[  672.879579]  ? finish_task_switch+0x1f4/0x910
[  672.884080]  ? trace_hardirqs_off_caller+0x310/0x310
[  672.889191]  ? compat_start_thread+0x80/0x80
[  672.893631]  ? pvclock_read_flags+0x160/0x160
[  672.898131]  ? __switch_to_asm+0x34/0x70
[  672.902199]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  672.907762]  ? check_preemption_disabled+0x48/0x280
[  672.912809]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  672.918355]  ? rcu_pm_notify+0xc0/0xc0
[  672.922254]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  672.927801]  ? check_preemption_disabled+0x48/0x280
[  672.932833]  run_timer_softirq+0x52/0xb0
[  672.936905]  ? rcu_read_lock_sched_held+0x14f/0x180
[  672.941929]  __do_softirq+0x308/0xb7e
[  672.945741]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  672.950534]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  672.955643]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  672.961103]  ? trace_hardirqs_on+0x310/0x310
[  672.965524]  ? schedule+0x108/0x460
[  672.969172]  ? trace_hardirqs_off+0xb8/0x310
[  672.973593]  ? smpboot_thread_fn+0x68b/0xa00
[  672.978008]  ? trace_hardirqs_on+0x310/0x310
[  672.982427]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  672.987974]  ? check_preemption_disabled+0x48/0x280
[  672.992998]  ? takeover_tasklets+0xa90/0xa90
[  672.997417]  run_ksoftirqd+0x5e/0x100
[  673.001225]  smpboot_thread_fn+0x68b/0xa00
[  673.005560]  ? sort_range+0x30/0x30
[  673.009200]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  673.014314]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  673.019862]  ? __kthread_parkme+0xfb/0x1a0
[  673.024107]  ? sort_range+0x30/0x30
[  673.027741]  kthread+0x35a/0x440
[  673.031142]  ? kthread_stop+0x900/0x900
[  673.035123]  ret_from_fork+0x3a/0x50
[  673.038865] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  673.038931] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  673.045888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  673.045897] Call Trace:
[  673.052475] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  673.061726]  <IRQ>
[  673.064330] ksoftirqd/0 cpuset=/ mems_allowed=0
[  673.074640]  dump_stack+0x244/0x39d
[  673.085086]  ? dump_stack_print_info.cold.1+0x20/0x20
[  673.090304]  warn_alloc.cold.116+0xb7/0x1bd
[  673.094635]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  673.099487]  ? lock_downgrade+0x900/0x900
[  673.103650]  ? trace_hardirqs_off+0xb8/0x310
[  673.108075]  ? trace_hardirqs_off+0xb8/0x310
[  673.112499]  __alloc_pages_slowpath+0x2651/0x2de0
[  673.117380]  ? warn_alloc+0x120/0x120
[  673.121198]  ? warn_alloc+0x120/0x120
[  673.125009]  ? warn_alloc+0x120/0x120
[  673.128825]  ? print_usage_bug+0xc0/0xc0
[  673.132899]  ? print_usage_bug+0xc0/0xc0
[  673.136967]  ? ktime_get+0x2c1/0x400
[  673.140697]  ? check_preemption_disabled+0x48/0x280
[  673.145718]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  673.150240]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  673.155795]  ? should_fail+0x22d/0xd01
[  673.159691]  ? kasan_check_read+0x11/0x20
[  673.163849]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  673.168965]  ? __lock_acquire+0x62f/0x4c20
[  673.173211]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  673.178323]  ? should_fail+0x22d/0xd01
[  673.182217]  ? print_usage_bug+0xc0/0xc0
[  673.186300]  ? mark_held_locks+0x130/0x130
[  673.190545]  ? mark_held_locks+0x130/0x130
[  673.194796]  ? check_preemption_disabled+0x48/0x280
[  673.199833]  ? zap_class+0x640/0x640
[  673.203561]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  673.208324]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  673.213875]  ? check_preemption_disabled+0x48/0x280
[  673.218910]  ? __lock_is_held+0xb5/0x140
[  673.222989]  __alloc_pages_nodemask+0xad8/0xea0
[  673.227664]  ? zap_class+0x640/0x640
[  673.231393]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  673.236429]  ? find_held_lock+0x36/0x1c0
[  673.240507]  ? ____cache_alloc_node+0x1c7/0x1e0
[  673.245184]  ? lock_downgrade+0x900/0x900
[  673.249352]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  673.254902]  cache_grow_begin+0xa5/0x8c0
[  673.258972]  ? do_raw_spin_unlock+0xa7/0x330
[  673.263397]  fallback_alloc+0x204/0x2e0
[  673.267387]  ____cache_alloc_node+0x1c7/0x1e0
[  673.271895]  kmem_cache_alloc_node+0xe3/0x730
[  673.276399]  ? lockdep_hardirqs_on+0x296/0x5b0
[  673.280999]  __alloc_skb+0x119/0x770
[  673.284723]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  673.290117]  ? netdev_alloc_frag+0x1f0/0x1f0
[  673.294542]  ? vprintk_default+0x28/0x30
[  673.298615]  ? vprintk_func+0x85/0x181
[  673.302511]  ? printk+0xa7/0xcf
[  673.305803]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  673.310580]  new_skb+0x26/0x1c0
[  673.313870]  aoecmd_cfg+0x279/0x7f0
[  673.317506]  ? find_held_lock+0x36/0x1c0
[  673.321581]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  673.325919]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  673.331474]  ? __lock_is_held+0xb5/0x140
[  673.335554]  discover_timer+0x50/0x60
[  673.339364]  call_timer_fn+0x272/0x920
[  673.343260]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  673.348118]  ? process_timeout+0x40/0x40
[  673.352198]  ? mark_held_locks+0xc7/0x130
[  673.356362]  ? _raw_spin_unlock_irq+0x27/0x80
[  673.360862]  ? _raw_spin_unlock_irq+0x27/0x80
[  673.365362]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  673.370211]  ? lockdep_hardirqs_on+0x296/0x5b0
[  673.374808]  ? trace_hardirqs_on+0xbd/0x310
[  673.379139]  ? kasan_check_read+0x11/0x20
[  673.383299]  ? __run_timers+0x7da/0xc70
[  673.387286]  ? trace_hardirqs_off_caller+0x310/0x310
[  673.392410]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  673.397262]  __run_timers+0x7e5/0xc70
[  673.401089]  ? timer_fixup_init+0x70/0x70
[  673.405253]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  673.410286]  ? zap_class+0x640/0x640
[  673.414017]  ? print_usage_bug+0xc0/0xc0
[  673.418088]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  673.423297]  ? find_held_lock+0x36/0x1c0
[  673.427373]  ? zap_class+0x640/0x640
[  673.431100]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  673.436646]  ? check_preemption_disabled+0x48/0x280
[  673.441681]  ? __lock_is_held+0xb5/0x140
[  673.445769]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  673.451317]  ? check_preemption_disabled+0x48/0x280
[  673.456347]  run_timer_softirq+0x52/0xb0
[  673.460415]  ? rcu_read_lock_sched_held+0x14f/0x180
[  673.465444]  __do_softirq+0x308/0xb7e
[  673.469258]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  673.473780]  ? lock_downgrade+0x900/0x900
[  673.477942]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  673.483065]  ? pvclock_read_flags+0x160/0x160
[  673.487568]  ? lapic_next_event+0x5a/0x90
[  673.491724]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  673.497295]  ? kvm_clock_read+0x18/0x30
[  673.501283]  ? kvm_sched_clock_read+0x9/0x20
[  673.505699]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  673.511249]  ? check_preemption_disabled+0x48/0x280
[  673.516303]  irq_exit+0x17f/0x1c0
[  673.519783]  smp_apic_timer_interrupt+0x1cb/0x760
[  673.524634]  ? smp_reschedule_interrupt+0x109/0x650
[  673.529663]  ? smp_call_function_single_interrupt+0x650/0x650
[  673.535554]  ? interrupt_entry+0xb5/0xc0
[  673.539624]  ? trace_hardirqs_off_caller+0xbb/0x310
[  673.544646]  ? trace_hardirqs_off_caller+0xbb/0x310
[  673.549674]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  673.554528]  ? trace_hardirqs_on_caller+0x310/0x310
[  673.559552]  ? trace_hardirqs_on_caller+0x310/0x310
[  673.564595]  ? task_prio+0x50/0x50
[  673.568149]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  673.573695]  ? check_preemption_disabled+0x48/0x280
[  673.578726]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  673.583609]  apic_timer_interrupt+0xf/0x20
[  673.587848]  </IRQ>
[  673.590098] RIP: 0010:dump_stack+0x358/0x39d
[  673.594514] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  673.613423] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  673.621137] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  673.628411] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  673.635689] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  673.642963] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  673.650235] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  673.657533]  ? dump_stack+0x34f/0x39d
[  673.661356]  ? dump_stack_print_info.cold.1+0x20/0x20
[  673.666559]  ? mark_held_locks+0x130/0x130
[  673.670806]  ? mark_held_locks+0x130/0x130
[  673.675052]  dump_header+0x27b/0xf72
[  673.678811]  ? pagefault_out_of_memory+0x197/0x197
[  673.683775]  ? __lock_acquire+0x62f/0x4c20
[  673.688021]  ? percpu_ref_get_many+0x240/0x240
[  673.692618]  ? print_usage_bug+0xc0/0xc0
[  673.696691]  ? zap_class+0x640/0x640
[  673.700414]  ? print_usage_bug+0xc0/0xc0
[  673.704485]  ? print_usage_bug+0xc0/0xc0
[  673.708558]  ? zap_class+0x640/0x640
[  673.712288]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  673.717843]  ? find_held_lock+0x36/0x1c0
[  673.721924]  ? mark_held_locks+0xc7/0x130
[  673.726086]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  673.731196]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  673.736309]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  673.740901]  ? trace_hardirqs_on+0xbd/0x310
[  673.745231]  ? kasan_check_read+0x11/0x20
[  673.749388]  ? ___ratelimit+0x3b4/0x672
[  673.753374]  ? trace_hardirqs_off_caller+0x310/0x310
[  673.758489]  ? trace_hardirqs_on+0x310/0x310
[  673.762907]  ? lock_downgrade+0x900/0x900
[  673.767075]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  673.772184]  ? ___ratelimit+0x3b9/0x672
[  673.776169]  ? idr_get_free+0xf70/0xf70
[  673.780149]  ? find_held_lock+0x36/0x1c0
[  673.784225]  oom_kill_process.cold.27+0x10/0x903
[  673.788987]  ? zap_class+0x640/0x640
[  673.792709]  ? check_preemption_disabled+0x48/0x280
[  673.797734]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  673.802693]  ? kasan_check_read+0x11/0x20
[  673.806851]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  673.812138]  ? oom_evaluate_task+0x540/0x540
[  673.816562]  ? find_held_lock+0x36/0x1c0
[  673.820642]  ? out_of_memory+0x974/0x1430
[  673.824806]  ? lock_downgrade+0x900/0x900
[  673.828963]  ? check_preemption_disabled+0x48/0x280
[  673.833991]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  673.838926]  ? kasan_check_read+0x11/0x20
[  673.843078]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  673.848365]  ? rcu_softirq_qs+0x20/0x20
[  673.852350]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  673.857896]  ? oom_evaluate_task+0x302/0x540
[  673.862321]  out_of_memory+0xa84/0x1430
[  673.866313]  ? oom_killer_disable+0x3a0/0x3a0
[  673.870819]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  673.875781]  ? __ww_mutex_check_waiters+0x160/0x160
[  673.880825]  __alloc_pages_slowpath+0x232c/0x2de0
[  673.885708]  ? warn_alloc+0x120/0x120
[  673.889516]  ? mark_held_locks+0x130/0x130
[  673.893783]  ? find_get_entry+0xaae/0x1120
[  673.898040]  ? filemap_map_pages+0x1a20/0x1a20
[  673.902640]  ? zap_class+0x640/0x640
[  673.906368]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  673.911916]  ? check_preemption_disabled+0x48/0x280
[  673.916946]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  673.922490]  ? should_fail+0x22d/0xd01
[  673.926395]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  673.931510]  ? zap_class+0x640/0x640
[  673.935261]  ? __lock_is_held+0xb5/0x140
[  673.939347]  ? mark_held_locks+0x130/0x130
[  673.943633]  ? lock_release+0xa00/0xa00
[  673.947620]  ? perf_trace_sched_process_exec+0x860/0x860
[  673.953075]  ? xa_load+0x2ba/0x460
[  673.956628]  ? lock_downgrade+0x900/0x900
[  673.960804]  ? __might_sleep+0x95/0x190
[  673.964804]  __alloc_pages_nodemask+0xad8/0xea0
[  673.969492]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  673.974516]  ? __page_cache_alloc+0x191/0x5c0
[  673.979013]  ? xa_load+0x2e1/0x460
[  673.982559]  ? xa_clear_mark+0x40/0x40
[  673.986456]  ? zap_class+0x640/0x640
[  673.990190]  ? zap_class+0x640/0x640
[  673.993911]  ? zap_class+0x640/0x640
[  673.997633]  ? __do_page_cache_readahead+0x663/0x810
[  674.002770]  ? find_held_lock+0x36/0x1c0
[  674.006852]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  674.012416]  alloc_pages_current+0x173/0x350
[  674.016839]  __page_cache_alloc+0x38c/0x5c0
[  674.021167]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  674.026102]  ? kasan_check_read+0x11/0x20
[  674.030261]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  674.035558]  ? generic_perform_write+0x6a0/0x6a0
[  674.040322]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  674.045870]  ? check_preemption_disabled+0x48/0x280
[  674.050903]  filemap_fault+0x1595/0x25f0
[  674.054985]  ? __lock_page_or_retry+0xa00/0xa00
[  674.059668]  ? mark_held_locks+0x130/0x130
[  674.063920]  ? filemap_map_pages+0xd6b/0x1a20
[  674.068426]  ? lock_downgrade+0x900/0x900
[  674.072580]  ? check_preemption_disabled+0x48/0x280
[  674.077605]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  674.082540]  ? kasan_check_read+0x11/0x20
[  674.086694]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  674.091982]  ? rcu_softirq_qs+0x20/0x20
[  674.095975]  ? filemap_map_pages+0xd92/0x1a20
[  674.100484]  ? print_usage_bug+0xc0/0xc0
[  674.104563]  ? find_get_entries_tag+0x1400/0x1400
[  674.109417]  ? __kasan_slab_free+0x102/0x150
[  674.113836]  ? kasan_slab_free+0xe/0x10
[  674.117820]  ? kmem_cache_free+0x83/0x290
[  674.121978]  ? __sigqueue_free.part.29+0x74/0x90
[  674.126781]  ? lock_acquire+0x1ed/0x520
[  674.130780]  ? ext4_filemap_fault+0x7a/0xad
[  674.135118]  ? lock_release+0xa00/0xa00
[  674.139097]  ? perf_trace_sched_process_exec+0x860/0x860
[  674.144555]  ? print_usage_bug+0xc0/0xc0
[  674.148628]  ? print_usage_bug+0xc0/0xc0
[  674.152706]  ? down_read+0x8d/0x120
[  674.156339]  ? ext4_filemap_fault+0x7a/0xad
[  674.160666]  ? __down_interruptible+0x700/0x700
[  674.165353]  ext4_filemap_fault+0x82/0xad
[  674.169513]  __do_fault+0x100/0x6b0
[  674.173152]  ? pmd_devmap_trans_unstable+0x220/0x220
[  674.178265]  ? mark_held_locks+0x130/0x130
[  674.182514]  ? mark_held_locks+0x130/0x130
[  674.186782]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  674.192330]  ? rcu_pm_notify+0xc0/0xc0
[  674.196280]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  674.201833]  __handle_mm_fault+0x3ea0/0x5be0
[  674.206259]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  674.211111]  ? _raw_spin_unlock_irq+0x27/0x80
[  674.215618]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  674.220208]  ? trace_hardirqs_on+0xbd/0x310
[  674.224535]  ? kasan_check_read+0x11/0x20
[  674.228691]  ? __set_current_blocked+0xdf/0x120
[  674.233370]  ? trace_hardirqs_off_caller+0x310/0x310
[  674.238493]  ? zap_class+0x640/0x640
[  674.242220]  ? zap_class+0x640/0x640
[  674.245948]  ? find_held_lock+0x36/0x1c0
[  674.250026]  ? handle_mm_fault+0x42a/0xc70
[  674.254274]  ? lock_downgrade+0x900/0x900
[  674.258433]  ? check_preemption_disabled+0x48/0x280
[  674.263464]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  674.268405]  ? kasan_check_read+0x11/0x20
[  674.272561]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  674.277891]  ? rcu_softirq_qs+0x20/0x20
[  674.281874]  ? trace_hardirqs_off_caller+0x310/0x310
[  674.286989]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  674.292534]  ? check_preemption_disabled+0x48/0x280
[  674.297568]  handle_mm_fault+0x54f/0xc70
[  674.301642]  ? __handle_mm_fault+0x5be0/0x5be0
[  674.306237]  ? find_vma+0x34/0x190
[  674.309811]  __do_page_fault+0x5e8/0xe60
[  674.313888]  ? exit_to_usermode_loop+0x1f4/0x380
[  674.318663]  do_page_fault+0xf2/0x7e0
[  674.322472]  ? vmalloc_sync_all+0x30/0x30
[  674.326633]  ? error_entry+0x70/0xd0
[  674.330359]  ? trace_hardirqs_off_caller+0xbb/0x310
[  674.335381]  ? trace_hardirqs_on_caller+0xc0/0x310
[  674.340316]  ? syscall_return_slowpath+0x5e0/0x5e0
[  674.345249]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  674.350106]  ? trace_hardirqs_on_caller+0x310/0x310
[  674.355132]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  674.360594]  ? prepare_exit_to_usermode+0x291/0x3b0
[  674.365617]  ? page_fault+0x8/0x30
[  674.369171]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  674.374028]  ? page_fault+0x8/0x30
[  674.377579]  page_fault+0x1e/0x30
[  674.381038] RIP: 0033:0x45db60
[  674.384254] Code: Bad RIP value.
[  674.387624] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  674.392991] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  674.400273] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  674.407546] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  674.414824] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  674.422095] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  674.429397] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  674.429402] warn_alloc_show_mem: 1 callbacks suppressed
[  674.429409] Mem-Info:
[  674.436252] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  674.441629] active_anon:42936 inactive_anon:306 isolated_anon:0
[  674.441629]  active_file:13 inactive_file:13 isolated_file:0
[  674.441629]  unevictable:0 dirty:0 writeback:0 unstable:0
[  674.441629]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  674.441629]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  674.441629]  free:13785 free_pcp:492 free_cma:0
[  674.444006] Call Trace:
[  674.453401] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  674.486171]  dump_stack+0x244/0x39d
[  674.488741] 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
[  674.516354]  ? dump_stack_print_info.cold.1+0x20/0x20
[  674.519959] lowmem_reserve[]: 0 2818 6321 6321
[  674.546081]  warn_alloc.cold.116+0xb7/0x1bd
[  674.551245] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  674.556285]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  674.556302]  ? lock_downgrade+0x900/0x900
[  674.560615] lowmem_reserve[]: 0 0 3503 3503
[  674.587796]  ? trace_hardirqs_off+0xb8/0x310
[  674.592616] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  674.596789]  ? trace_hardirqs_off+0xb8/0x310
[  674.601086] lowmem_reserve[]: 0 0 0 0
[  674.605504]  __alloc_pages_slowpath+0x2651/0x2de0
[  674.634628] 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
[  674.639061]  ? warn_alloc+0x120/0x120
[  674.642820] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  674.647665]  ? print_usage_bug+0xc0/0xc0
[  674.661431] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  674.665231]  ? warn_alloc+0x120/0x120
[  674.680393] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  674.684449]  ? warn_alloc+0x120/0x120
[  674.700111] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  674.703909]  ? print_usage_bug+0xc0/0xc0
[  674.712730] 380 total pagecache pages
[  674.716554]  ? print_usage_bug+0xc0/0xc0
[  674.725117] 0 pages in swap cache
[  674.729168]  ? __lock_acquire+0x62f/0x4c20
[  674.732953] Swap cache stats: add 0, delete 0, find 0/0
[  674.737015]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  674.740447] Free swap  = 0kB
[  674.744683]  ? should_fail+0x22d/0xd01
[  674.750030] Total swap = 0kB
[  674.755566]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  674.758568] 1965979 pages RAM
[  674.762455]  ? __lock_acquire+0x62f/0x4c20
[  674.765455] 0 pages HighMem/MovableOnly
[  674.770556]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  674.773642] 342854 pages reserved
[  674.777880]  ? __lock_acquire+0x62f/0x4c20
[  674.781844] 0 pages cma reserved
[  674.786948]  ? should_fail+0x22d/0xd01
[  674.790442] aoe: skb alloc failure
[  674.794629]  ? find_held_lock+0x36/0x1c0
[  674.798005] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  674.801868]  ? mark_held_locks+0x130/0x130
[  674.805389] syz-fuzzer cpuset=/ mems_allowed=0
[  674.809453]  ? mark_held_locks+0x130/0x130
[  674.832684]  ? zap_class+0x640/0x640
[  674.836455]  ? mark_held_locks+0xc7/0x130
[  674.840607]  ? do_raw_spin_unlock+0xa7/0x330
[  674.845023]  ? zap_class+0x640/0x640
[  674.848762]  ? print_usage_bug+0xc0/0xc0
[  674.852847]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  674.858392]  ? check_preemption_disabled+0x48/0x280
[  674.863424]  ? __lock_is_held+0xb5/0x140
[  674.867499]  __alloc_pages_nodemask+0xad8/0xea0
[  674.872179]  ? zap_class+0x640/0x640
[  674.875908]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  674.880950]  ? find_held_lock+0x36/0x1c0
[  674.885032]  ? ____cache_alloc_node+0x1c7/0x1e0
[  674.889708]  ? lock_downgrade+0x900/0x900
[  674.893874]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  674.899423]  cache_grow_begin+0xa5/0x8c0
[  674.903489]  ? do_raw_spin_unlock+0xa7/0x330
[  674.907915]  fallback_alloc+0x204/0x2e0
[  674.911906]  ____cache_alloc_node+0x1c7/0x1e0
[  674.916418]  kmem_cache_alloc_node+0xe3/0x730
[  674.920926]  ? ipv6_get_ifaddr+0x42e/0x620
[  674.925177]  __alloc_skb+0x119/0x770
[  674.928898]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  674.934185]  ? netdev_alloc_frag+0x1f0/0x1f0
[  674.938599]  ? lock_downgrade+0x900/0x900
[  674.942785]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  674.948342]  ? refcount_sub_and_test_checked+0x203/0x310
[  674.953815]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  674.959272]  ? addrconf_rs_timer+0x690/0x690
[  674.963702]  ndisc_alloc_skb+0x144/0x340
[  674.967796]  ndisc_send_rs+0x331/0x6e0
[  674.971699]  addrconf_rs_timer+0x314/0x690
[  674.975949]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  674.980206]  call_timer_fn+0x272/0x920
[  674.984105]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  674.988345]  ? process_timeout+0x40/0x40
[  674.992424]  ? __run_timers+0x7da/0xc70
[  674.996411]  ? _raw_spin_unlock_irq+0x27/0x80
[  675.000912]  ? _raw_spin_unlock_irq+0x27/0x80
[  675.005417]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  675.009660]  ? lockdep_hardirqs_on+0x296/0x5b0
[  675.014254]  ? trace_hardirqs_on+0xbd/0x310
[  675.018586]  ? kasan_check_read+0x11/0x20
[  675.022738]  ? __run_timers+0x7da/0xc70
[  675.026764]  ? trace_hardirqs_off_caller+0x310/0x310
[  675.031897]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  675.036140]  __run_timers+0x7e5/0xc70
[  675.039960]  ? timer_fixup_init+0x70/0x70
[  675.044115]  ? _raw_spin_unlock_irq+0x27/0x80
[  675.048616]  ? _raw_spin_unlock_irq+0x27/0x80
[  675.053120]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  675.057714]  ? trace_hardirqs_on+0xbd/0x310
[  675.062058]  ? kasan_check_read+0x11/0x20
[  675.066218]  ? finish_task_switch+0x1f4/0x910
[  675.070728]  ? trace_hardirqs_off_caller+0x310/0x310
[  675.075863]  ? compat_start_thread+0x80/0x80
[  675.080303]  ? pvclock_read_flags+0x160/0x160
[  675.084807]  ? __switch_to_asm+0x34/0x70
[  675.088875]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.094418]  ? check_preemption_disabled+0x48/0x280
[  675.099449]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  675.104997]  ? rcu_pm_notify+0xc0/0xc0
[  675.108891]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.114436]  ? check_preemption_disabled+0x48/0x280
[  675.119466]  run_timer_softirq+0x52/0xb0
[  675.123538]  ? rcu_read_lock_sched_held+0x14f/0x180
[  675.128564]  __do_softirq+0x308/0xb7e
[  675.132380]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  675.137152]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  675.142264]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  675.147719]  ? trace_hardirqs_on+0x310/0x310
[  675.152167]  ? schedule+0x108/0x460
[  675.155826]  ? trace_hardirqs_off+0xb8/0x310
[  675.160246]  ? smpboot_thread_fn+0x68b/0xa00
[  675.164665]  ? trace_hardirqs_on+0x310/0x310
[  675.169081]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  675.174624]  ? check_preemption_disabled+0x48/0x280
[  675.179647]  ? takeover_tasklets+0xa90/0xa90
[  675.184062]  run_ksoftirqd+0x5e/0x100
[  675.187871]  smpboot_thread_fn+0x68b/0xa00
[  675.192116]  ? sort_range+0x30/0x30
[  675.195774]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  675.200890]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  675.206434]  ? __kthread_parkme+0xfb/0x1a0
[  675.210679]  ? sort_range+0x30/0x30
[  675.214315]  kthread+0x35a/0x440
[  675.217693]  ? kthread_stop+0x900/0x900
[  675.221679]  ret_from_fork+0x3a/0x50
[  675.225422] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  675.225496] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  675.232436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  675.232442] Call Trace:
[  675.232448]  <IRQ>
[  675.232467]  dump_stack+0x244/0x39d
[  675.232486]  ? dump_stack_print_info.cold.1+0x20/0x20
[  675.239052] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  675.248327]  warn_alloc.cold.116+0xb7/0x1bd
[  675.250891] ksoftirqd/0 cpuset=/ mems_allowed=0
[  675.253044]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  675.285939]  ? lock_downgrade+0x900/0x900
[  675.290103]  ? trace_hardirqs_off+0xb8/0x310
[  675.294524]  ? trace_hardirqs_off+0xb8/0x310
[  675.298959]  __alloc_pages_slowpath+0x2651/0x2de0
[  675.303841]  ? warn_alloc+0x120/0x120
[  675.307659]  ? warn_alloc+0x120/0x120
[  675.311469]  ? __lock_acquire+0x62f/0x4c20
[  675.315714]  ? warn_alloc+0x120/0x120
[  675.319538]  ? print_usage_bug+0xc0/0xc0
[  675.323613]  ? print_usage_bug+0xc0/0xc0
[  675.327685]  ? mark_held_locks+0x130/0x130
[  675.331933]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  675.337476]  ? should_fail+0x22d/0xd01
[  675.341374]  ? zap_class+0x640/0x640
[  675.345098]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  675.350208]  ? __lock_acquire+0x62f/0x4c20
[  675.354454]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  675.359566]  ? should_fail+0x22d/0xd01
[  675.363475]  ? mark_held_locks+0x130/0x130
[  675.367720]  ? mark_held_locks+0x130/0x130
[  675.371984]  ? lock_downgrade+0x900/0x900
[  675.376142]  ? zap_class+0x640/0x640
[  675.379873]  ? zap_class+0x640/0x640
[  675.383594]  ? zap_class+0x640/0x640
[  675.387316]  ? do_raw_spin_unlock+0xa7/0x330
[  675.391735]  ? trace_hardirqs_on+0x310/0x310
[  675.396169]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.401713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.407286]  ? check_preemption_disabled+0x48/0x280
[  675.412322]  ? __lock_is_held+0xb5/0x140
[  675.416395]  __alloc_pages_nodemask+0xad8/0xea0
[  675.421072]  ? zap_class+0x640/0x640
[  675.424812]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  675.429850]  ? find_held_lock+0x36/0x1c0
[  675.433933]  ? ____cache_alloc_node+0x1c7/0x1e0
[  675.438612]  ? lock_downgrade+0x900/0x900
[  675.442791]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.448344]  cache_grow_begin+0xa5/0x8c0
[  675.452414]  ? do_raw_spin_unlock+0xa7/0x330
[  675.456842]  fallback_alloc+0x204/0x2e0
[  675.460832]  ____cache_alloc_node+0x1c7/0x1e0
[  675.465344]  kmem_cache_alloc_node+0xe3/0x730
[  675.469851]  ? lockdep_hardirqs_on+0x296/0x5b0
[  675.474455]  __alloc_skb+0x119/0x770
[  675.478174]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  675.483548]  ? netdev_alloc_frag+0x1f0/0x1f0
[  675.487973]  ? vprintk_default+0x28/0x30
[  675.492044]  ? vprintk_func+0x85/0x181
[  675.495938]  ? printk+0xa7/0xcf
[  675.499225]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  675.503999]  new_skb+0x26/0x1c0
[  675.507319]  aoecmd_cfg+0x279/0x7f0
[  675.510969]  ? find_held_lock+0x36/0x1c0
[  675.515045]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  675.519383]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.524943]  ? __lock_is_held+0xb5/0x140
[  675.529027]  discover_timer+0x50/0x60
[  675.532834]  call_timer_fn+0x272/0x920
[  675.536728]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  675.541597]  ? process_timeout+0x40/0x40
[  675.545677]  ? mark_held_locks+0xc7/0x130
[  675.549841]  ? _raw_spin_unlock_irq+0x27/0x80
[  675.554347]  ? _raw_spin_unlock_irq+0x27/0x80
[  675.558852]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  675.563704]  ? lockdep_hardirqs_on+0x296/0x5b0
[  675.568299]  ? trace_hardirqs_on+0xbd/0x310
[  675.572629]  ? kasan_check_read+0x11/0x20
[  675.576795]  ? __run_timers+0x7da/0xc70
[  675.580793]  ? trace_hardirqs_off_caller+0x310/0x310
[  675.585922]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  675.590788]  __run_timers+0x7e5/0xc70
[  675.594610]  ? timer_fixup_init+0x70/0x70
[  675.598786]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  675.603813]  ? zap_class+0x640/0x640
[  675.607541]  ? print_usage_bug+0xc0/0xc0
[  675.611613]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  675.616822]  ? find_held_lock+0x36/0x1c0
[  675.620896]  ? zap_class+0x640/0x640
[  675.624624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.630172]  ? check_preemption_disabled+0x48/0x280
[  675.635209]  ? __lock_is_held+0xb5/0x140
[  675.639285]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.645011]  ? check_preemption_disabled+0x48/0x280
[  675.650082]  run_timer_softirq+0x52/0xb0
[  675.654156]  ? rcu_read_lock_sched_held+0x14f/0x180
[  675.659234]  __do_softirq+0x308/0xb7e
[  675.663053]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  675.667558]  ? lock_downgrade+0x900/0x900
[  675.671721]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  675.676864]  ? pvclock_read_flags+0x160/0x160
[  675.681373]  ? lapic_next_event+0x5a/0x90
[  675.685532]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.691083]  ? kvm_clock_read+0x18/0x30
[  675.695106]  ? kvm_sched_clock_read+0x9/0x20
[  675.699529]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  675.705079]  ? check_preemption_disabled+0x48/0x280
[  675.710112]  irq_exit+0x17f/0x1c0
[  675.713574]  smp_apic_timer_interrupt+0x1cb/0x760
[  675.718423]  ? smp_reschedule_interrupt+0x109/0x650
[  675.723453]  ? smp_call_function_single_interrupt+0x650/0x650
[  675.729344]  ? interrupt_entry+0xb5/0xc0
[  675.733415]  ? trace_hardirqs_off_caller+0xbb/0x310
[  675.738436]  ? trace_hardirqs_off_caller+0xbb/0x310
[  675.743460]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  675.748314]  ? trace_hardirqs_on_caller+0x310/0x310
[  675.753336]  ? trace_hardirqs_on_caller+0x310/0x310
[  675.758363]  ? task_prio+0x50/0x50
[  675.761912]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  675.767462]  ? check_preemption_disabled+0x48/0x280
[  675.772493]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  675.777354]  apic_timer_interrupt+0xf/0x20
[  675.781587]  </IRQ>
[  675.783841] RIP: 0010:dump_stack+0x358/0x39d
[  675.788256] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  675.807164] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  675.814876] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  675.822150] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  675.829425] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  675.836697] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  675.843973] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  675.851280]  ? dump_stack+0x34f/0x39d
[  675.855102]  ? dump_stack_print_info.cold.1+0x20/0x20
[  675.860306]  ? mark_held_locks+0x130/0x130
[  675.864549]  ? mark_held_locks+0x130/0x130
[  675.868806]  dump_header+0x27b/0xf72
[  675.872542]  ? pagefault_out_of_memory+0x197/0x197
[  675.877486]  ? __lock_acquire+0x62f/0x4c20
[  675.881787]  ? percpu_ref_get_many+0x240/0x240
[  675.886386]  ? print_usage_bug+0xc0/0xc0
[  675.890462]  ? zap_class+0x640/0x640
[  675.894188]  ? print_usage_bug+0xc0/0xc0
[  675.898259]  ? print_usage_bug+0xc0/0xc0
[  675.902336]  ? zap_class+0x640/0x640
[  675.906061]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  675.911611]  ? find_held_lock+0x36/0x1c0
[  675.915695]  ? mark_held_locks+0xc7/0x130
[  675.919855]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  675.924969]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  675.930080]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  675.934672]  ? trace_hardirqs_on+0xbd/0x310
[  675.939000]  ? kasan_check_read+0x11/0x20
[  675.943160]  ? ___ratelimit+0x3b4/0x672
[  675.947147]  ? trace_hardirqs_off_caller+0x310/0x310
[  675.952259]  ? trace_hardirqs_on+0x310/0x310
[  675.956683]  ? lock_downgrade+0x900/0x900
[  675.960849]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  675.965964]  ? ___ratelimit+0x3b9/0x672
[  675.969950]  ? idr_get_free+0xf70/0xf70
[  675.973936]  ? find_held_lock+0x36/0x1c0
[  675.978014]  oom_kill_process.cold.27+0x10/0x903
[  675.982791]  ? zap_class+0x640/0x640
[  675.986513]  ? check_preemption_disabled+0x48/0x280
[  675.991540]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  675.996474]  ? kasan_check_read+0x11/0x20
[  676.000629]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  676.005915]  ? oom_evaluate_task+0x540/0x540
[  676.010339]  ? find_held_lock+0x36/0x1c0
[  676.014414]  ? out_of_memory+0x974/0x1430
[  676.018569]  ? lock_downgrade+0x900/0x900
[  676.022728]  ? check_preemption_disabled+0x48/0x280
[  676.027787]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  676.032725]  ? kasan_check_read+0x11/0x20
[  676.036899]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  676.042183]  ? rcu_softirq_qs+0x20/0x20
[  676.046172]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  676.051713]  ? oom_evaluate_task+0x302/0x540
[  676.056148]  out_of_memory+0xa84/0x1430
[  676.060140]  ? oom_killer_disable+0x3a0/0x3a0
[  676.064645]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  676.069592]  ? __ww_mutex_check_waiters+0x160/0x160
[  676.074628]  __alloc_pages_slowpath+0x232c/0x2de0
[  676.079507]  ? warn_alloc+0x120/0x120
[  676.083316]  ? mark_held_locks+0x130/0x130
[  676.087563]  ? find_get_entry+0xaae/0x1120
[  676.091822]  ? filemap_map_pages+0x1a20/0x1a20
[  676.096417]  ? zap_class+0x640/0x640
[  676.100145]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  676.105694]  ? check_preemption_disabled+0x48/0x280
[  676.110722]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  676.116290]  ? should_fail+0x22d/0xd01
[  676.120189]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  676.125305]  ? zap_class+0x640/0x640
[  676.129052]  ? __lock_is_held+0xb5/0x140
[  676.133128]  ? mark_held_locks+0x130/0x130
[  676.137373]  ? lock_release+0xa00/0xa00
[  676.141353]  ? perf_trace_sched_process_exec+0x860/0x860
[  676.146809]  ? xa_load+0x2ba/0x460
[  676.150361]  ? lock_downgrade+0x900/0x900
[  676.154520]  ? __might_sleep+0x95/0x190
[  676.158512]  __alloc_pages_nodemask+0xad8/0xea0
[  676.163194]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  676.168221]  ? __page_cache_alloc+0x191/0x5c0
[  676.172717]  ? xa_load+0x2e1/0x460
[  676.176287]  ? xa_clear_mark+0x40/0x40
[  676.180183]  ? zap_class+0x640/0x640
[  676.183910]  ? zap_class+0x640/0x640
[  676.187630]  ? zap_class+0x640/0x640
[  676.191345]  ? __do_page_cache_readahead+0x663/0x810
[  676.196454]  ? find_held_lock+0x36/0x1c0
[  676.200522]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  676.206066]  alloc_pages_current+0x173/0x350
[  676.210480]  __page_cache_alloc+0x38c/0x5c0
[  676.214809]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  676.219741]  ? kasan_check_read+0x11/0x20
[  676.223902]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  676.229179]  ? generic_perform_write+0x6a0/0x6a0
[  676.233968]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  676.239524]  ? check_preemption_disabled+0x48/0x280
[  676.244564]  filemap_fault+0x1595/0x25f0
[  676.248638]  ? __lock_page_or_retry+0xa00/0xa00
[  676.253308]  ? mark_held_locks+0x130/0x130
[  676.257551]  ? filemap_map_pages+0xd6b/0x1a20
[  676.262061]  ? lock_downgrade+0x900/0x900
[  676.266223]  ? check_preemption_disabled+0x48/0x280
[  676.271255]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  676.276218]  ? kasan_check_read+0x11/0x20
[  676.280363]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  676.285635]  ? rcu_softirq_qs+0x20/0x20
[  676.289629]  ? filemap_map_pages+0xd92/0x1a20
[  676.294129]  ? print_usage_bug+0xc0/0xc0
[  676.298210]  ? find_get_entries_tag+0x1400/0x1400
[  676.303051]  ? __kasan_slab_free+0x102/0x150
[  676.307474]  ? kasan_slab_free+0xe/0x10
[  676.311443]  ? kmem_cache_free+0x83/0x290
[  676.315605]  ? __sigqueue_free.part.29+0x74/0x90
[  676.320381]  ? lock_acquire+0x1ed/0x520
[  676.324359]  ? ext4_filemap_fault+0x7a/0xad
[  676.328689]  ? lock_release+0xa00/0xa00
[  676.332658]  ? perf_trace_sched_process_exec+0x860/0x860
[  676.338127]  ? print_usage_bug+0xc0/0xc0
[  676.342191]  ? print_usage_bug+0xc0/0xc0
[  676.346264]  ? down_read+0x8d/0x120
[  676.349896]  ? ext4_filemap_fault+0x7a/0xad
[  676.354264]  ? __down_interruptible+0x700/0x700
[  676.358952]  ext4_filemap_fault+0x82/0xad
[  676.363098]  __do_fault+0x100/0x6b0
[  676.366770]  ? pmd_devmap_trans_unstable+0x220/0x220
[  676.371877]  ? mark_held_locks+0x130/0x130
[  676.376111]  ? mark_held_locks+0x130/0x130
[  676.380346]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  676.385884]  ? rcu_pm_notify+0xc0/0xc0
[  676.389794]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  676.395335]  __handle_mm_fault+0x3ea0/0x5be0
[  676.399761]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  676.404616]  ? _raw_spin_unlock_irq+0x27/0x80
[  676.409110]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  676.413697]  ? trace_hardirqs_on+0xbd/0x310
[  676.418013]  ? kasan_check_read+0x11/0x20
[  676.422173]  ? __set_current_blocked+0xdf/0x120
[  676.426869]  ? trace_hardirqs_off_caller+0x310/0x310
[  676.431982]  ? zap_class+0x640/0x640
[  676.435692]  ? zap_class+0x640/0x640
[  676.439414]  ? find_held_lock+0x36/0x1c0
[  676.443487]  ? handle_mm_fault+0x42a/0xc70
[  676.447723]  ? lock_downgrade+0x900/0x900
[  676.451878]  ? check_preemption_disabled+0x48/0x280
[  676.456896]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  676.461828]  ? kasan_check_read+0x11/0x20
[  676.465990]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  676.471263]  ? rcu_softirq_qs+0x20/0x20
[  676.475247]  ? trace_hardirqs_off_caller+0x310/0x310
[  676.480368]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  676.485921]  ? check_preemption_disabled+0x48/0x280
[  676.490957]  handle_mm_fault+0x54f/0xc70
[  676.495026]  ? __handle_mm_fault+0x5be0/0x5be0
[  676.499613]  ? find_vma+0x34/0x190
[  676.503160]  __do_page_fault+0x5e8/0xe60
[  676.507221]  ? exit_to_usermode_loop+0x1f4/0x380
[  676.511985]  do_page_fault+0xf2/0x7e0
[  676.515786]  ? vmalloc_sync_all+0x30/0x30
[  676.519934]  ? error_entry+0x70/0xd0
[  676.523649]  ? trace_hardirqs_off_caller+0xbb/0x310
[  676.528667]  ? trace_hardirqs_on_caller+0xc0/0x310
[  676.533593]  ? syscall_return_slowpath+0x5e0/0x5e0
[  676.538519]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  676.543359]  ? trace_hardirqs_on_caller+0x310/0x310
[  676.548388]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  676.553994]  ? prepare_exit_to_usermode+0x291/0x3b0
[  676.559010]  ? page_fault+0x8/0x30
[  676.562570]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  676.567429]  ? page_fault+0x8/0x30
[  676.570974]  page_fault+0x1e/0x30
[  676.574455] RIP: 0033:0x45db60
[  676.577657] Code: Bad RIP value.
[  676.581017] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  676.586383] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  676.593644] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  676.600908] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  676.608176] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  676.615437] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  676.622734] warn_alloc_show_mem: 1 callbacks suppressed
[  676.622753] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  676.622755] Mem-Info:
[  676.622784] active_anon:42936 inactive_anon:306 isolated_anon:0
[  676.622784]  active_file:13 inactive_file:13 isolated_file:0
[  676.622784]  unevictable:0 dirty:0 writeback:0 unstable:0
[  676.622784]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  676.622784]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  676.622784]  free:13785 free_pcp:492 free_cma:0
[  676.628123] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  676.634964] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  676.637356] Call Trace:
[  676.670141] 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
[  676.679493]  dump_stack+0x244/0x39d
[  676.707531] lowmem_reserve[]: 0 2818 6321 6321
[  676.710126]  ? dump_stack_print_info.cold.1+0x20/0x20
[  676.736210] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  676.739837]  warn_alloc.cold.116+0xb7/0x1bd
[  676.744386] lowmem_reserve[]: 0 0 3503 3503
[  676.749571]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  676.776696] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  676.781018]  ? lock_downgrade+0x900/0x900
[  676.785309] lowmem_reserve[]: 0 0 0 0
[  676.790148]  ? trace_hardirqs_off+0xb8/0x310
[  676.819285] 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
[  676.823428]  ? trace_hardirqs_off+0xb8/0x310
[  676.827206] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  676.831606]  __alloc_pages_slowpath+0x2651/0x2de0
[  676.845094] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  676.849533]  ? warn_alloc+0x120/0x120
[  676.864663] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  676.869494]  ? print_usage_bug+0xc0/0xc0
[  676.884648] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  676.888435]  ? warn_alloc+0x120/0x120
[  676.897242] 380 total pagecache pages
[  676.901312]  ? warn_alloc+0x120/0x120
[  676.909869] 0 pages in swap cache
[  676.913654]  ? print_usage_bug+0xc0/0xc0
[  676.917431] Swap cache stats: add 0, delete 0, find 0/0
[  676.921235]  ? print_usage_bug+0xc0/0xc0
[  676.924658] Free swap  = 0kB
[  676.928710]  ? __lock_acquire+0x62f/0x4c20
[  676.934048] Total swap = 0kB
[  676.938115]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  676.941105] 1965979 pages RAM
[  676.945333]  ? should_fail+0x22d/0xd01
[  676.948328] 0 pages HighMem/MovableOnly
[  676.953861]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  676.956942] 342854 pages reserved
[  676.960822]  ? __lock_acquire+0x62f/0x4c20
[  676.964773] 0 pages cma reserved
[  676.964840] aoe: skb alloc failure
[  676.969877]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  676.969890]  ? __lock_acquire+0x62f/0x4c20
[  676.969906]  ? should_fail+0x22d/0xd01
[  676.973362] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  676.977561]  ? find_held_lock+0x36/0x1c0
[  676.980930] syz-fuzzer cpuset=/ mems_allowed=0
[  676.984467]  ? mark_held_locks+0x130/0x130
[  677.020679]  ? mark_held_locks+0x130/0x130
[  677.024910]  ? zap_class+0x640/0x640
[  677.028655]  ? mark_held_locks+0xc7/0x130
[  677.032811]  ? do_raw_spin_unlock+0xa7/0x330
[  677.037222]  ? zap_class+0x640/0x640
[  677.040939]  ? print_usage_bug+0xc0/0xc0
[  677.045003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.050554]  ? check_preemption_disabled+0x48/0x280
[  677.055583]  ? __lock_is_held+0xb5/0x140
[  677.059653]  __alloc_pages_nodemask+0xad8/0xea0
[  677.064321]  ? zap_class+0x640/0x640
[  677.068038]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  677.073066]  ? find_held_lock+0x36/0x1c0
[  677.077134]  ? ____cache_alloc_node+0x1c7/0x1e0
[  677.081802]  ? lock_downgrade+0x900/0x900
[  677.085957]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.091498]  cache_grow_begin+0xa5/0x8c0
[  677.095561]  ? do_raw_spin_unlock+0xa7/0x330
[  677.099978]  fallback_alloc+0x204/0x2e0
[  677.103983]  ____cache_alloc_node+0x1c7/0x1e0
[  677.108481]  kmem_cache_alloc_node+0xe3/0x730
[  677.112981]  ? ipv6_get_ifaddr+0x42e/0x620
[  677.117226]  __alloc_skb+0x119/0x770
[  677.120934]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  677.126216]  ? netdev_alloc_frag+0x1f0/0x1f0
[  677.130621]  ? lock_downgrade+0x900/0x900
[  677.134798]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.140350]  ? refcount_sub_and_test_checked+0x203/0x310
[  677.145803]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  677.151256]  ? addrconf_rs_timer+0x690/0x690
[  677.155701]  ndisc_alloc_skb+0x144/0x340
[  677.159781]  ndisc_send_rs+0x331/0x6e0
[  677.163673]  addrconf_rs_timer+0x314/0x690
[  677.167910]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  677.172165]  call_timer_fn+0x272/0x920
[  677.176054]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  677.180285]  ? process_timeout+0x40/0x40
[  677.184354]  ? __run_timers+0x7da/0xc70
[  677.188330]  ? _raw_spin_unlock_irq+0x27/0x80
[  677.192822]  ? _raw_spin_unlock_irq+0x27/0x80
[  677.197311]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  677.201542]  ? lockdep_hardirqs_on+0x296/0x5b0
[  677.206127]  ? trace_hardirqs_on+0xbd/0x310
[  677.210446]  ? kasan_check_read+0x11/0x20
[  677.214590]  ? __run_timers+0x7da/0xc70
[  677.218560]  ? trace_hardirqs_off_caller+0x310/0x310
[  677.223681]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  677.227919]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  677.232153]  __run_timers+0x7e5/0xc70
[  677.235962]  ? timer_fixup_init+0x70/0x70
[  677.240112]  ? _raw_spin_unlock_irq+0x27/0x80
[  677.244602]  ? _raw_spin_unlock_irq+0x27/0x80
[  677.249113]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  677.253708]  ? trace_hardirqs_on+0xbd/0x310
[  677.258030]  ? kasan_check_read+0x11/0x20
[  677.262177]  ? finish_task_switch+0x1f4/0x910
[  677.266672]  ? trace_hardirqs_off_caller+0x310/0x310
[  677.271793]  ? compat_start_thread+0x80/0x80
[  677.276218]  ? pvclock_read_flags+0x160/0x160
[  677.280741]  ? __switch_to_asm+0x34/0x70
[  677.284813]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.290348]  ? check_preemption_disabled+0x48/0x280
[  677.295372]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  677.300908]  ? rcu_pm_notify+0xc0/0xc0
[  677.304801]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.310338]  ? check_preemption_disabled+0x48/0x280
[  677.315354]  run_timer_softirq+0x52/0xb0
[  677.319440]  ? rcu_read_lock_sched_held+0x14f/0x180
[  677.324465]  __do_softirq+0x308/0xb7e
[  677.328271]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  677.333037]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  677.338137]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  677.343588]  ? trace_hardirqs_on+0x310/0x310
[  677.348014]  ? schedule+0x108/0x460
[  677.351649]  ? trace_hardirqs_off+0xb8/0x310
[  677.356071]  ? smpboot_thread_fn+0x68b/0xa00
[  677.360495]  ? trace_hardirqs_on+0x310/0x310
[  677.364900]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  677.370437]  ? check_preemption_disabled+0x48/0x280
[  677.375454]  ? takeover_tasklets+0xa90/0xa90
[  677.379867]  run_ksoftirqd+0x5e/0x100
[  677.383668]  smpboot_thread_fn+0x68b/0xa00
[  677.387922]  ? sort_range+0x30/0x30
[  677.391548]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  677.396652]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  677.402219]  ? __kthread_parkme+0xfb/0x1a0
[  677.406456]  ? sort_range+0x30/0x30
[  677.410080]  kthread+0x35a/0x440
[  677.413445]  ? kthread_stop+0x900/0x900
[  677.417419]  ret_from_fork+0x3a/0x50
[  677.421153] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  677.421235] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  677.428175] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  677.428184] Call Trace:
[  677.434762] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  677.444002]  <IRQ>
[  677.446574] ksoftirqd/0 cpuset=/ mems_allowed=0
[  677.456877]  dump_stack+0x244/0x39d
[  677.467275]  ? dump_stack_print_info.cold.1+0x20/0x20
[  677.472474]  warn_alloc.cold.116+0xb7/0x1bd
[  677.476813]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  677.481687]  ? lock_downgrade+0x900/0x900
[  677.485842]  ? trace_hardirqs_off+0xb8/0x310
[  677.490261]  ? trace_hardirqs_off+0xb8/0x310
[  677.494700]  __alloc_pages_slowpath+0x2651/0x2de0
[  677.499570]  ? warn_alloc+0x120/0x120
[  677.503375]  ? warn_alloc+0x120/0x120
[  677.507179]  ? __lock_acquire+0x62f/0x4c20
[  677.511411]  ? warn_alloc+0x120/0x120
[  677.515216]  ? print_usage_bug+0xc0/0xc0
[  677.519287]  ? print_usage_bug+0xc0/0xc0
[  677.523353]  ? mark_held_locks+0x130/0x130
[  677.527595]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  677.533131]  ? should_fail+0x22d/0xd01
[  677.537013]  ? zap_class+0x640/0x640
[  677.540753]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  677.545871]  ? __lock_acquire+0x62f/0x4c20
[  677.550108]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  677.555210]  ? should_fail+0x22d/0xd01
[  677.559105]  ? mark_held_locks+0x130/0x130
[  677.563342]  ? mark_held_locks+0x130/0x130
[  677.567583]  ? lock_downgrade+0x900/0x900
[  677.571733]  ? zap_class+0x640/0x640
[  677.575455]  ? zap_class+0x640/0x640
[  677.579184]  ? zap_class+0x640/0x640
[  677.582893]  ? do_raw_spin_unlock+0xa7/0x330
[  677.587298]  ? trace_hardirqs_on+0x310/0x310
[  677.591714]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.597259]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.602831]  ? check_preemption_disabled+0x48/0x280
[  677.607887]  ? __lock_is_held+0xb5/0x140
[  677.611952]  __alloc_pages_nodemask+0xad8/0xea0
[  677.616623]  ? zap_class+0x640/0x640
[  677.620355]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  677.625381]  ? find_held_lock+0x36/0x1c0
[  677.629452]  ? ____cache_alloc_node+0x1c7/0x1e0
[  677.634123]  ? lock_downgrade+0x900/0x900
[  677.638328]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.643873]  cache_grow_begin+0xa5/0x8c0
[  677.647935]  ? do_raw_spin_unlock+0xa7/0x330
[  677.652363]  fallback_alloc+0x204/0x2e0
[  677.656359]  ____cache_alloc_node+0x1c7/0x1e0
[  677.660877]  kmem_cache_alloc_node+0xe3/0x730
[  677.665373]  ? lockdep_hardirqs_on+0x296/0x5b0
[  677.669966]  __alloc_skb+0x119/0x770
[  677.673679]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  677.679065]  ? netdev_alloc_frag+0x1f0/0x1f0
[  677.683480]  ? vprintk_default+0x28/0x30
[  677.687549]  ? vprintk_func+0x85/0x181
[  677.691434]  ? printk+0xa7/0xcf
[  677.694711]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  677.699494]  new_skb+0x26/0x1c0
[  677.702781]  aoecmd_cfg+0x279/0x7f0
[  677.706409]  ? find_held_lock+0x36/0x1c0
[  677.710485]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  677.714828]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.720376]  ? __lock_is_held+0xb5/0x140
[  677.724461]  discover_timer+0x50/0x60
[  677.728274]  call_timer_fn+0x272/0x920
[  677.732177]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  677.737019]  ? process_timeout+0x40/0x40
[  677.741091]  ? mark_held_locks+0xc7/0x130
[  677.745245]  ? _raw_spin_unlock_irq+0x27/0x80
[  677.749744]  ? _raw_spin_unlock_irq+0x27/0x80
[  677.754244]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  677.759093]  ? lockdep_hardirqs_on+0x296/0x5b0
[  677.763674]  ? trace_hardirqs_on+0xbd/0x310
[  677.768010]  ? kasan_check_read+0x11/0x20
[  677.772156]  ? __run_timers+0x7da/0xc70
[  677.776128]  ? trace_hardirqs_off_caller+0x310/0x310
[  677.781240]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  677.786086]  __run_timers+0x7e5/0xc70
[  677.789900]  ? timer_fixup_init+0x70/0x70
[  677.794050]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  677.799063]  ? zap_class+0x640/0x640
[  677.802794]  ? print_usage_bug+0xc0/0xc0
[  677.806860]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  677.812057]  ? find_held_lock+0x36/0x1c0
[  677.816123]  ? zap_class+0x640/0x640
[  677.819840]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.825378]  ? check_preemption_disabled+0x48/0x280
[  677.830406]  ? __lock_is_held+0xb5/0x140
[  677.834468]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.840003]  ? check_preemption_disabled+0x48/0x280
[  677.845027]  run_timer_softirq+0x52/0xb0
[  677.849089]  ? rcu_read_lock_sched_held+0x14f/0x180
[  677.854109]  __do_softirq+0x308/0xb7e
[  677.857913]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  677.862408]  ? lock_downgrade+0x900/0x900
[  677.866561]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  677.871674]  ? pvclock_read_flags+0x160/0x160
[  677.876168]  ? lapic_next_event+0x5a/0x90
[  677.880315]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  677.885853]  ? kvm_clock_read+0x18/0x30
[  677.889825]  ? kvm_sched_clock_read+0x9/0x20
[  677.894234]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  677.899774]  ? check_preemption_disabled+0x48/0x280
[  677.904802]  irq_exit+0x17f/0x1c0
[  677.908254]  smp_apic_timer_interrupt+0x1cb/0x760
[  677.913101]  ? smp_reschedule_interrupt+0x109/0x650
[  677.918115]  ? smp_call_function_single_interrupt+0x650/0x650
[  677.924012]  ? interrupt_entry+0xb5/0xc0
[  677.928071]  ? trace_hardirqs_off_caller+0xbb/0x310
[  677.933085]  ? trace_hardirqs_off_caller+0xbb/0x310
[  677.938100]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  677.942945]  ? trace_hardirqs_on_caller+0x310/0x310
[  677.947958]  ? trace_hardirqs_on_caller+0x310/0x310
[  677.952972]  ? task_prio+0x50/0x50
[  677.956511]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  677.962050]  ? check_preemption_disabled+0x48/0x280
[  677.967070]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  677.971919]  apic_timer_interrupt+0xf/0x20
[  677.976150]  </IRQ>
[  677.978401] RIP: 0010:dump_stack+0x358/0x39d
[  677.982827] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  678.001741] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  678.009452] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  678.016713] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  678.023997] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  678.031258] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  678.038524] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  678.045813]  ? dump_stack+0x34f/0x39d
[  678.049627]  ? dump_stack_print_info.cold.1+0x20/0x20
[  678.054830]  ? mark_held_locks+0x130/0x130
[  678.059078]  ? mark_held_locks+0x130/0x130
[  678.063315]  dump_header+0x27b/0xf72
[  678.067042]  ? pagefault_out_of_memory+0x197/0x197
[  678.071984]  ? __lock_acquire+0x62f/0x4c20
[  678.076249]  ? percpu_ref_get_many+0x240/0x240
[  678.080844]  ? print_usage_bug+0xc0/0xc0
[  678.084911]  ? zap_class+0x640/0x640
[  678.088624]  ? print_usage_bug+0xc0/0xc0
[  678.092680]  ? print_usage_bug+0xc0/0xc0
[  678.096740]  ? zap_class+0x640/0x640
[  678.100482]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  678.106053]  ? find_held_lock+0x36/0x1c0
[  678.110123]  ? mark_held_locks+0xc7/0x130
[  678.114276]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  678.119381]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  678.124489]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  678.129071]  ? trace_hardirqs_on+0xbd/0x310
[  678.133390]  ? kasan_check_read+0x11/0x20
[  678.137538]  ? ___ratelimit+0x3b4/0x672
[  678.141543]  ? trace_hardirqs_off_caller+0x310/0x310
[  678.146657]  ? trace_hardirqs_on+0x310/0x310
[  678.151080]  ? lock_downgrade+0x900/0x900
[  678.155250]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  678.160373]  ? ___ratelimit+0x3b9/0x672
[  678.164353]  ? idr_get_free+0xf70/0xf70
[  678.168326]  ? find_held_lock+0x36/0x1c0
[  678.172396]  oom_kill_process.cold.27+0x10/0x903
[  678.177185]  ? zap_class+0x640/0x640
[  678.180900]  ? check_preemption_disabled+0x48/0x280
[  678.185930]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  678.190858]  ? kasan_check_read+0x11/0x20
[  678.195006]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  678.200290]  ? oom_evaluate_task+0x540/0x540
[  678.204701]  ? find_held_lock+0x36/0x1c0
[  678.208792]  ? out_of_memory+0x974/0x1430
[  678.212942]  ? lock_downgrade+0x900/0x900
[  678.217120]  ? check_preemption_disabled+0x48/0x280
[  678.222139]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  678.227080]  ? kasan_check_read+0x11/0x20
[  678.231225]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  678.236519]  ? rcu_softirq_qs+0x20/0x20
[  678.240522]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  678.246058]  ? oom_evaluate_task+0x302/0x540
[  678.250497]  out_of_memory+0xa84/0x1430
[  678.254482]  ? oom_killer_disable+0x3a0/0x3a0
[  678.258980]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  678.263914]  ? __ww_mutex_check_waiters+0x160/0x160
[  678.268940]  __alloc_pages_slowpath+0x232c/0x2de0
[  678.273820]  ? warn_alloc+0x120/0x120
[  678.277627]  ? mark_held_locks+0x130/0x130
[  678.281868]  ? find_get_entry+0xaae/0x1120
[  678.286111]  ? filemap_map_pages+0x1a20/0x1a20
[  678.290700]  ? zap_class+0x640/0x640
[  678.294438]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  678.300010]  ? check_preemption_disabled+0x48/0x280
[  678.305022]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  678.310559]  ? should_fail+0x22d/0xd01
[  678.314449]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  678.319553]  ? zap_class+0x640/0x640
[  678.323295]  ? __lock_is_held+0xb5/0x140
[  678.327366]  ? mark_held_locks+0x130/0x130
[  678.331604]  ? lock_release+0xa00/0xa00
[  678.335608]  ? perf_trace_sched_process_exec+0x860/0x860
[  678.341053]  ? xa_load+0x2ba/0x460
[  678.344593]  ? lock_downgrade+0x900/0x900
[  678.348743]  ? __might_sleep+0x95/0x190
[  678.352727]  __alloc_pages_nodemask+0xad8/0xea0
[  678.357411]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  678.362429]  ? __page_cache_alloc+0x191/0x5c0
[  678.366924]  ? xa_load+0x2e1/0x460
[  678.370482]  ? xa_clear_mark+0x40/0x40
[  678.374368]  ? zap_class+0x640/0x640
[  678.378089]  ? zap_class+0x640/0x640
[  678.381800]  ? zap_class+0x640/0x640
[  678.385512]  ? __do_page_cache_readahead+0x663/0x810
[  678.390617]  ? find_held_lock+0x36/0x1c0
[  678.394712]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  678.400255]  alloc_pages_current+0x173/0x350
[  678.404670]  __page_cache_alloc+0x38c/0x5c0
[  678.408991]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  678.413917]  ? kasan_check_read+0x11/0x20
[  678.418066]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  678.423345]  ? generic_perform_write+0x6a0/0x6a0
[  678.428103]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  678.433640]  ? check_preemption_disabled+0x48/0x280
[  678.438663]  filemap_fault+0x1595/0x25f0
[  678.442736]  ? __lock_page_or_retry+0xa00/0xa00
[  678.447416]  ? mark_held_locks+0x130/0x130
[  678.451669]  ? filemap_map_pages+0xd6b/0x1a20
[  678.456165]  ? lock_downgrade+0x900/0x900
[  678.460329]  ? check_preemption_disabled+0x48/0x280
[  678.465358]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  678.470290]  ? kasan_check_read+0x11/0x20
[  678.474436]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  678.479728]  ? rcu_softirq_qs+0x20/0x20
[  678.483721]  ? filemap_map_pages+0xd92/0x1a20
[  678.488240]  ? print_usage_bug+0xc0/0xc0
[  678.492307]  ? find_get_entries_tag+0x1400/0x1400
[  678.497147]  ? __kasan_slab_free+0x102/0x150
[  678.501573]  ? kasan_slab_free+0xe/0x10
[  678.505548]  ? kmem_cache_free+0x83/0x290
[  678.509696]  ? __sigqueue_free.part.29+0x74/0x90
[  678.514471]  ? lock_acquire+0x1ed/0x520
[  678.518448]  ? ext4_filemap_fault+0x7a/0xad
[  678.522785]  ? lock_release+0xa00/0xa00
[  678.526767]  ? perf_trace_sched_process_exec+0x860/0x860
[  678.532232]  ? print_usage_bug+0xc0/0xc0
[  678.536296]  ? print_usage_bug+0xc0/0xc0
[  678.540396]  ? down_read+0x8d/0x120
[  678.544023]  ? ext4_filemap_fault+0x7a/0xad
[  678.548356]  ? __down_interruptible+0x700/0x700
[  678.553032]  ext4_filemap_fault+0x82/0xad
[  678.557283]  __do_fault+0x100/0x6b0
[  678.560915]  ? pmd_devmap_trans_unstable+0x220/0x220
[  678.566016]  ? mark_held_locks+0x130/0x130
[  678.570253]  ? mark_held_locks+0x130/0x130
[  678.574495]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  678.580050]  ? rcu_pm_notify+0xc0/0xc0
[  678.583942]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  678.589485]  __handle_mm_fault+0x3ea0/0x5be0
[  678.593900]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  678.598736]  ? _raw_spin_unlock_irq+0x27/0x80
[  678.603239]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  678.607827]  ? trace_hardirqs_on+0xbd/0x310
[  678.612151]  ? kasan_check_read+0x11/0x20
[  678.616299]  ? __set_current_blocked+0xdf/0x120
[  678.620969]  ? trace_hardirqs_off_caller+0x310/0x310
[  678.626086]  ? zap_class+0x640/0x640
[  678.629799]  ? zap_class+0x640/0x640
[  678.633519]  ? find_held_lock+0x36/0x1c0
[  678.637592]  ? handle_mm_fault+0x42a/0xc70
[  678.641827]  ? lock_downgrade+0x900/0x900
[  678.645980]  ? check_preemption_disabled+0x48/0x280
[  678.650998]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  678.655924]  ? kasan_check_read+0x11/0x20
[  678.660070]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  678.665348]  ? rcu_softirq_qs+0x20/0x20
[  678.669320]  ? trace_hardirqs_off_caller+0x310/0x310
[  678.674420]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  678.679976]  ? check_preemption_disabled+0x48/0x280
[  678.685557]  handle_mm_fault+0x54f/0xc70
[  678.689672]  ? __handle_mm_fault+0x5be0/0x5be0
[  678.694260]  ? find_vma+0x34/0x190
[  678.697809]  __do_page_fault+0x5e8/0xe60
[  678.701869]  ? exit_to_usermode_loop+0x1f4/0x380
[  678.706638]  do_page_fault+0xf2/0x7e0
[  678.710462]  ? vmalloc_sync_all+0x30/0x30
[  678.714606]  ? error_entry+0x70/0xd0
[  678.718320]  ? trace_hardirqs_off_caller+0xbb/0x310
[  678.723332]  ? trace_hardirqs_on_caller+0xc0/0x310
[  678.728264]  ? syscall_return_slowpath+0x5e0/0x5e0
[  678.733198]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  678.738042]  ? trace_hardirqs_on_caller+0x310/0x310
[  678.743057]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  678.748527]  ? prepare_exit_to_usermode+0x291/0x3b0
[  678.753542]  ? page_fault+0x8/0x30
[  678.757083]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  678.761929]  ? page_fault+0x8/0x30
[  678.765470]  page_fault+0x1e/0x30
[  678.768917] RIP: 0033:0x45db60
[  678.772120] Code: Bad RIP value.
[  678.775478] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  678.780841] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  678.788119] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  678.795399] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  678.802667] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  678.809946] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  678.817267] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  678.817277] warn_alloc_show_mem: 1 callbacks suppressed
[  678.817285] Mem-Info:
[  678.824127] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  678.829510] active_anon:42936 inactive_anon:306 isolated_anon:0
[  678.829510]  active_file:13 inactive_file:13 isolated_file:0
[  678.829510]  unevictable:0 dirty:0 writeback:0 unstable:0
[  678.829510]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  678.829510]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  678.829510]  free:13785 free_pcp:492 free_cma:0
[  678.831893] Call Trace:
[  678.841324] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  678.874090]  dump_stack+0x244/0x39d
[  678.876645] 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
[  678.904238]  ? dump_stack_print_info.cold.1+0x20/0x20
[  678.907854] lowmem_reserve[]: 0 2818 6321 6321
[  678.933990]  warn_alloc.cold.116+0xb7/0x1bd
[  678.939145] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  678.943730]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  678.948024] lowmem_reserve[]: 0 0 3503 3503
[  678.975169]  ? lock_downgrade+0x900/0x900
[  678.979983] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  678.984301]  ? trace_hardirqs_off+0xb8/0x310
[  678.988418] lowmem_reserve[]: 0 0 0 0
[  679.017559]  ? trace_hardirqs_off+0xb8/0x310
[  679.021936] 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
[  679.025735]  __alloc_pages_slowpath+0x2651/0x2de0
[  679.030139] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  679.043705]  ? warn_alloc+0x120/0x120
[  679.048500] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  679.063678]  ? print_usage_bug+0xc0/0xc0
[  679.067460] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  679.082615]  ? warn_alloc+0x120/0x120
[  679.086655] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  679.095476]  ? warn_alloc+0x120/0x120
[  679.099248] 380 total pagecache pages
[  679.107814]  ? print_usage_bug+0xc0/0xc0
[  679.111594] 0 pages in swap cache
[  679.115374]  ? print_usage_bug+0xc0/0xc0
[  679.119414] Swap cache stats: add 0, delete 0, find 0/0
[  679.122853]  ? __lock_acquire+0x62f/0x4c20
[  679.126888] Free swap  = 0kB
[  679.132260]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  679.136489] Total swap = 0kB
[  679.139502]  ? should_fail+0x22d/0xd01
[  679.145009] 1965979 pages RAM
[  679.148024]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  679.151886] 0 pages HighMem/MovableOnly
[  679.154984]  ? __lock_acquire+0x62f/0x4c20
[  679.160060] 342854 pages reserved
[  679.164027]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  679.168232] 0 pages cma reserved
[  679.171674]  ? __lock_acquire+0x62f/0x4c20
[  679.176821] aoe: skb alloc failure
[  679.180112]  ? should_fail+0x22d/0xd01
[  679.180141]  ? find_held_lock+0x36/0x1c0
[  679.180176]  ? mark_held_locks+0x130/0x130
[  679.184414] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  679.187920]  ? mark_held_locks+0x130/0x130
[  679.191781] syz-fuzzer cpuset=/ mems_allowed=0
[  679.195835]  ? zap_class+0x640/0x640
[  679.222796]  ? mark_held_locks+0xc7/0x130
[  679.226942]  ? do_raw_spin_unlock+0xa7/0x330
[  679.231353]  ? zap_class+0x640/0x640
[  679.235064]  ? print_usage_bug+0xc0/0xc0
[  679.239128]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  679.244681]  ? check_preemption_disabled+0x48/0x280
[  679.249703]  ? __lock_is_held+0xb5/0x140
[  679.253782]  __alloc_pages_nodemask+0xad8/0xea0
[  679.258451]  ? zap_class+0x640/0x640
[  679.262170]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  679.267198]  ? find_held_lock+0x36/0x1c0
[  679.271265]  ? ____cache_alloc_node+0x1c7/0x1e0
[  679.275936]  ? lock_downgrade+0x900/0x900
[  679.280095]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  679.285636]  cache_grow_begin+0xa5/0x8c0
[  679.289696]  ? do_raw_spin_unlock+0xa7/0x330
[  679.294112]  fallback_alloc+0x204/0x2e0
[  679.298097]  ____cache_alloc_node+0x1c7/0x1e0
[  679.302599]  kmem_cache_alloc_node+0xe3/0x730
[  679.307108]  ? ipv6_get_ifaddr+0x42e/0x620
[  679.311358]  __alloc_skb+0x119/0x770
[  679.315086]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  679.320381]  ? netdev_alloc_frag+0x1f0/0x1f0
[  679.324807]  ? lock_downgrade+0x900/0x900
[  679.328965]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  679.334502]  ? refcount_sub_and_test_checked+0x203/0x310
[  679.339998]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  679.345448]  ? addrconf_rs_timer+0x690/0x690
[  679.349869]  ndisc_alloc_skb+0x144/0x340
[  679.353934]  ndisc_send_rs+0x331/0x6e0
[  679.357825]  addrconf_rs_timer+0x314/0x690
[  679.362066]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  679.366311]  call_timer_fn+0x272/0x920
[  679.370210]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  679.374442]  ? process_timeout+0x40/0x40
[  679.378512]  ? __run_timers+0x7da/0xc70
[  679.382487]  ? _raw_spin_unlock_irq+0x27/0x80
[  679.386983]  ? _raw_spin_unlock_irq+0x27/0x80
[  679.391475]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  679.395708]  ? lockdep_hardirqs_on+0x296/0x5b0
[  679.400288]  ? trace_hardirqs_on+0xbd/0x310
[  679.404612]  ? kasan_check_read+0x11/0x20
[  679.408762]  ? __run_timers+0x7da/0xc70
[  679.412740]  ? trace_hardirqs_off_caller+0x310/0x310
[  679.417876]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  679.422131]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  679.426364]  __run_timers+0x7e5/0xc70
[  679.430177]  ? timer_fixup_init+0x70/0x70
[  679.434326]  ? _raw_spin_unlock_irq+0x27/0x80
[  679.438821]  ? _raw_spin_unlock_irq+0x27/0x80
[  679.443323]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  679.447910]  ? trace_hardirqs_on+0xbd/0x310
[  679.452233]  ? kasan_check_read+0x11/0x20
[  679.456386]  ? finish_task_switch+0x1f4/0x910
[  679.460887]  ? trace_hardirqs_off_caller+0x310/0x310
[  679.465990]  ? compat_start_thread+0x80/0x80
[  679.470454]  ? pvclock_read_flags+0x160/0x160
[  679.474948]  ? __switch_to_asm+0x34/0x70
[  679.479009]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  679.484547]  ? check_preemption_disabled+0x48/0x280
[  679.489574]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  679.495115]  ? rcu_pm_notify+0xc0/0xc0
[  679.499004]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  679.504550]  ? check_preemption_disabled+0x48/0x280
[  679.509587]  run_timer_softirq+0x52/0xb0
[  679.513663]  ? rcu_read_lock_sched_held+0x14f/0x180
[  679.518673]  __do_softirq+0x308/0xb7e
[  679.522477]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  679.527239]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  679.532353]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  679.537838]  ? trace_hardirqs_on+0x310/0x310
[  679.542252]  ? schedule+0x108/0x460
[  679.545891]  ? trace_hardirqs_off+0xb8/0x310
[  679.550301]  ? smpboot_thread_fn+0x68b/0xa00
[  679.554723]  ? trace_hardirqs_on+0x310/0x310
[  679.559139]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  679.564680]  ? check_preemption_disabled+0x48/0x280
[  679.569698]  ? takeover_tasklets+0xa90/0xa90
[  679.574111]  run_ksoftirqd+0x5e/0x100
[  679.577909]  smpboot_thread_fn+0x68b/0xa00
[  679.582149]  ? sort_range+0x30/0x30
[  679.585800]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  679.590903]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  679.596441]  ? __kthread_parkme+0xfb/0x1a0
[  679.600679]  ? sort_range+0x30/0x30
[  679.604303]  kthread+0x35a/0x440
[  679.607669]  ? kthread_stop+0x900/0x900
[  679.611647]  ret_from_fork+0x3a/0x50
[  679.615377] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  679.615447] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  679.622382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  679.622387] Call Trace:
[  679.622393]  <IRQ>
[  679.622411]  dump_stack+0x244/0x39d
[  679.622430]  ? dump_stack_print_info.cold.1+0x20/0x20
[  679.629023] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  679.638291]  warn_alloc.cold.116+0xb7/0x1bd
[  679.640851] ksoftirqd/0 cpuset=/ mems_allowed=0
[  679.643013]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  679.675877]  ? lock_downgrade+0x900/0x900
[  679.680034]  ? trace_hardirqs_off+0xb8/0x310
[  679.684451]  ? trace_hardirqs_off+0xb8/0x310
[  679.688885]  __alloc_pages_slowpath+0x2651/0x2de0
[  679.693780]  ? warn_alloc+0x120/0x120
[  679.697614]  ? warn_alloc+0x120/0x120
[  679.701419]  ? __lock_acquire+0x62f/0x4c20
[  679.705654]  ? warn_alloc+0x120/0x120
[  679.709453]  ? print_usage_bug+0xc0/0xc0
[  679.713516]  ? print_usage_bug+0xc0/0xc0
[  679.717577]  ? mark_held_locks+0x130/0x130
[  679.721816]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  679.727366]  ? should_fail+0x22d/0xd01
[  679.731282]  ? zap_class+0x640/0x640
[  679.735014]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  679.740120]  ? __lock_acquire+0x62f/0x4c20
[  679.744372]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  679.749471]  ? should_fail+0x22d/0xd01
[  679.753368]  ? mark_held_locks+0x130/0x130
[  679.757610]  ? mark_held_locks+0x130/0x130
[  679.761860]  ? lock_downgrade+0x900/0x900
[  679.766012]  ? zap_class+0x640/0x640
[  679.769725]  ? zap_class+0x640/0x640
[  679.773449]  ? zap_class+0x640/0x640
[  679.777159]  ? do_raw_spin_unlock+0xa7/0x330
[  679.781583]  ? trace_hardirqs_on+0x310/0x310
[  679.785985]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  679.791524]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  679.797059]  ? check_preemption_disabled+0x48/0x280
[  679.802085]  ? __lock_is_held+0xb5/0x140
[  679.806151]  __alloc_pages_nodemask+0xad8/0xea0
[  679.810817]  ? zap_class+0x640/0x640
[  679.814533]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  679.819557]  ? find_held_lock+0x36/0x1c0
[  679.823642]  ? ____cache_alloc_node+0x1c7/0x1e0
[  679.828310]  ? lock_downgrade+0x900/0x900
[  679.832463]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  679.838026]  cache_grow_begin+0xa5/0x8c0
[  679.842114]  ? do_raw_spin_unlock+0xa7/0x330
[  679.846529]  fallback_alloc+0x204/0x2e0
[  679.850512]  ____cache_alloc_node+0x1c7/0x1e0
[  679.855011]  kmem_cache_alloc_node+0xe3/0x730
[  679.859513]  ? lockdep_hardirqs_on+0x296/0x5b0
[  679.864105]  __alloc_skb+0x119/0x770
[  679.867821]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  679.873215]  ? netdev_alloc_frag+0x1f0/0x1f0
[  679.877658]  ? vprintk_default+0x28/0x30
[  679.881720]  ? vprintk_func+0x85/0x181
[  679.885620]  ? printk+0xa7/0xcf
[  679.888911]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  679.893675]  new_skb+0x26/0x1c0
[  679.896953]  aoecmd_cfg+0x279/0x7f0
[  679.900581]  ? find_held_lock+0x36/0x1c0
[  679.904642]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  679.908970]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  679.914546]  ? __lock_is_held+0xb5/0x140
[  679.918644]  discover_timer+0x50/0x60
[  679.922456]  call_timer_fn+0x272/0x920
[  679.926391]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  679.931231]  ? process_timeout+0x40/0x40
[  679.935300]  ? mark_held_locks+0xc7/0x130
[  679.939449]  ? _raw_spin_unlock_irq+0x27/0x80
[  679.944010]  ? _raw_spin_unlock_irq+0x27/0x80
[  679.948502]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  679.953344]  ? lockdep_hardirqs_on+0x296/0x5b0
[  679.957929]  ? trace_hardirqs_on+0xbd/0x310
[  679.962265]  ? kasan_check_read+0x11/0x20
[  679.966412]  ? __run_timers+0x7da/0xc70
[  679.970384]  ? trace_hardirqs_off_caller+0x310/0x310
[  679.975497]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  679.980332]  __run_timers+0x7e5/0xc70
[  679.984139]  ? timer_fixup_init+0x70/0x70
[  679.988292]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  679.993308]  ? zap_class+0x640/0x640
[  679.997024]  ? print_usage_bug+0xc0/0xc0
[  680.001086]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  680.006288]  ? find_held_lock+0x36/0x1c0
[  680.010371]  ? zap_class+0x640/0x640
[  680.014093]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  680.019635]  ? check_preemption_disabled+0x48/0x280
[  680.024660]  ? __lock_is_held+0xb5/0x140
[  680.028738]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  680.034286]  ? check_preemption_disabled+0x48/0x280
[  680.039368]  run_timer_softirq+0x52/0xb0
[  680.043471]  ? rcu_read_lock_sched_held+0x14f/0x180
[  680.048489]  __do_softirq+0x308/0xb7e
[  680.052311]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  680.056804]  ? lock_downgrade+0x900/0x900
[  680.060960]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  680.066071]  ? pvclock_read_flags+0x160/0x160
[  680.070570]  ? lapic_next_event+0x5a/0x90
[  680.074722]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  680.080309]  ? kvm_clock_read+0x18/0x30
[  680.084289]  ? kvm_sched_clock_read+0x9/0x20
[  680.088699]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  680.094236]  ? check_preemption_disabled+0x48/0x280
[  680.099265]  irq_exit+0x17f/0x1c0
[  680.102728]  smp_apic_timer_interrupt+0x1cb/0x760
[  680.107594]  ? smp_reschedule_interrupt+0x109/0x650
[  680.112611]  ? smp_call_function_single_interrupt+0x650/0x650
[  680.118496]  ? interrupt_entry+0xb5/0xc0
[  680.122556]  ? trace_hardirqs_off_caller+0xbb/0x310
[  680.127568]  ? trace_hardirqs_off_caller+0xbb/0x310
[  680.132582]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  680.137437]  ? trace_hardirqs_on_caller+0x310/0x310
[  680.142449]  ? trace_hardirqs_on_caller+0x310/0x310
[  680.147478]  ? task_prio+0x50/0x50
[  680.151018]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  680.156555]  ? check_preemption_disabled+0x48/0x280
[  680.161612]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  680.166465]  apic_timer_interrupt+0xf/0x20
[  680.170694]  </IRQ>
[  680.172934] RIP: 0010:dump_stack+0x358/0x39d
[  680.177370] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  680.196265] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  680.203986] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  680.211247] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  680.218513] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  680.225776] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  680.233055] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  680.240340]  ? dump_stack+0x34f/0x39d
[  680.244156]  ? dump_stack_print_info.cold.1+0x20/0x20
[  680.249352]  ? mark_held_locks+0x130/0x130
[  680.253584]  ? mark_held_locks+0x130/0x130
[  680.257824]  dump_header+0x27b/0xf72
[  680.261550]  ? pagefault_out_of_memory+0x197/0x197
[  680.266488]  ? __lock_acquire+0x62f/0x4c20
[  680.270722]  ? percpu_ref_get_many+0x240/0x240
[  680.275314]  ? print_usage_bug+0xc0/0xc0
[  680.279395]  ? zap_class+0x640/0x640
[  680.283141]  ? print_usage_bug+0xc0/0xc0
[  680.287218]  ? print_usage_bug+0xc0/0xc0
[  680.291326]  ? zap_class+0x640/0x640
[  680.295042]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  680.300613]  ? find_held_lock+0x36/0x1c0
[  680.304690]  ? mark_held_locks+0xc7/0x130
[  680.308841]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  680.313939]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  680.319041]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  680.323622]  ? trace_hardirqs_on+0xbd/0x310
[  680.327943]  ? kasan_check_read+0x11/0x20
[  680.332093]  ? ___ratelimit+0x3b4/0x672
[  680.336072]  ? trace_hardirqs_off_caller+0x310/0x310
[  680.341177]  ? trace_hardirqs_on+0x310/0x310
[  680.345582]  ? lock_downgrade+0x900/0x900
[  680.349731]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  680.354841]  ? ___ratelimit+0x3b9/0x672
[  680.358817]  ? idr_get_free+0xf70/0xf70
[  680.362797]  ? find_held_lock+0x36/0x1c0
[  680.366877]  oom_kill_process.cold.27+0x10/0x903
[  680.371645]  ? zap_class+0x640/0x640
[  680.375358]  ? check_preemption_disabled+0x48/0x280
[  680.380372]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  680.385302]  ? kasan_check_read+0x11/0x20
[  680.389455]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  680.394743]  ? oom_evaluate_task+0x540/0x540
[  680.399162]  ? find_held_lock+0x36/0x1c0
[  680.403233]  ? out_of_memory+0x974/0x1430
[  680.407381]  ? lock_downgrade+0x900/0x900
[  680.411526]  ? check_preemption_disabled+0x48/0x280
[  680.416544]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  680.421469]  ? kasan_check_read+0x11/0x20
[  680.425617]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  680.430909]  ? rcu_softirq_qs+0x20/0x20
[  680.434889]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  680.440438]  ? oom_evaluate_task+0x302/0x540
[  680.444850]  out_of_memory+0xa84/0x1430
[  680.448834]  ? oom_killer_disable+0x3a0/0x3a0
[  680.453328]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  680.458282]  ? __ww_mutex_check_waiters+0x160/0x160
[  680.463335]  __alloc_pages_slowpath+0x232c/0x2de0
[  680.468217]  ? warn_alloc+0x120/0x120
[  680.472016]  ? mark_held_locks+0x130/0x130
[  680.476265]  ? find_get_entry+0xaae/0x1120
[  680.480529]  ? filemap_map_pages+0x1a20/0x1a20
[  680.485119]  ? zap_class+0x640/0x640
[  680.488839]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  680.494375]  ? check_preemption_disabled+0x48/0x280
[  680.499389]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  680.504943]  ? should_fail+0x22d/0xd01
[  680.508838]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  680.513944]  ? zap_class+0x640/0x640
[  680.517711]  ? __lock_is_held+0xb5/0x140
[  680.521784]  ? mark_held_locks+0x130/0x130
[  680.526019]  ? lock_release+0xa00/0xa00
[  680.529991]  ? perf_trace_sched_process_exec+0x860/0x860
[  680.535442]  ? xa_load+0x2ba/0x460
[  680.538984]  ? lock_downgrade+0x900/0x900
[  680.543137]  ? __might_sleep+0x95/0x190
[  680.547116]  __alloc_pages_nodemask+0xad8/0xea0
[  680.551795]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  680.556968]  ? __page_cache_alloc+0x191/0x5c0
[  680.561459]  ? xa_load+0x2e1/0x460
[  680.565014]  ? xa_clear_mark+0x40/0x40
[  680.568903]  ? zap_class+0x640/0x640
[  680.572625]  ? zap_class+0x640/0x640
[  680.576367]  ? zap_class+0x640/0x640
[  680.580080]  ? __do_page_cache_readahead+0x663/0x810
[  680.585192]  ? find_held_lock+0x36/0x1c0
[  680.589257]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  680.594805]  alloc_pages_current+0x173/0x350
[  680.599237]  __page_cache_alloc+0x38c/0x5c0
[  680.603562]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  680.608488]  ? kasan_check_read+0x11/0x20
[  680.612649]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  680.617931]  ? generic_perform_write+0x6a0/0x6a0
[  680.622683]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  680.628222]  ? check_preemption_disabled+0x48/0x280
[  680.633245]  filemap_fault+0x1595/0x25f0
[  680.637320]  ? __lock_page_or_retry+0xa00/0xa00
[  680.641989]  ? mark_held_locks+0x130/0x130
[  680.646234]  ? filemap_map_pages+0xd6b/0x1a20
[  680.650732]  ? lock_downgrade+0x900/0x900
[  680.654891]  ? check_preemption_disabled+0x48/0x280
[  680.659912]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  680.664858]  ? kasan_check_read+0x11/0x20
[  680.669003]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  680.674284]  ? rcu_softirq_qs+0x20/0x20
[  680.678278]  ? filemap_map_pages+0xd92/0x1a20
[  680.682781]  ? print_usage_bug+0xc0/0xc0
[  680.687344]  ? find_get_entries_tag+0x1400/0x1400
[  680.692181]  ? __kasan_slab_free+0x102/0x150
[  680.696583]  ? kasan_slab_free+0xe/0x10
[  680.700550]  ? kmem_cache_free+0x83/0x290
[  680.704698]  ? __sigqueue_free.part.29+0x74/0x90
[  680.709468]  ? lock_acquire+0x1ed/0x520
[  680.713439]  ? ext4_filemap_fault+0x7a/0xad
[  680.717791]  ? lock_release+0xa00/0xa00
[  680.721770]  ? perf_trace_sched_process_exec+0x860/0x860
[  680.727224]  ? print_usage_bug+0xc0/0xc0
[  680.731292]  ? print_usage_bug+0xc0/0xc0
[  680.735376]  ? down_read+0x8d/0x120
[  680.738995]  ? ext4_filemap_fault+0x7a/0xad
[  680.743310]  ? __down_interruptible+0x700/0x700
[  680.747988]  ext4_filemap_fault+0x82/0xad
[  680.752138]  __do_fault+0x100/0x6b0
[  680.755775]  ? pmd_devmap_trans_unstable+0x220/0x220
[  680.760879]  ? mark_held_locks+0x130/0x130
[  680.765114]  ? mark_held_locks+0x130/0x130
[  680.769352]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  680.774892]  ? rcu_pm_notify+0xc0/0xc0
[  680.778812]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  680.784353]  __handle_mm_fault+0x3ea0/0x5be0
[  680.788774]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  680.793611]  ? _raw_spin_unlock_irq+0x27/0x80
[  680.798101]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  680.802685]  ? trace_hardirqs_on+0xbd/0x310
[  680.807031]  ? kasan_check_read+0x11/0x20
[  680.811181]  ? __set_current_blocked+0xdf/0x120
[  680.815849]  ? trace_hardirqs_off_caller+0x310/0x310
[  680.820961]  ? zap_class+0x640/0x640
[  680.824671]  ? zap_class+0x640/0x640
[  680.828392]  ? find_held_lock+0x36/0x1c0
[  680.832473]  ? handle_mm_fault+0x42a/0xc70
[  680.836707]  ? lock_downgrade+0x900/0x900
[  680.840854]  ? check_preemption_disabled+0x48/0x280
[  680.845870]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  680.850800]  ? kasan_check_read+0x11/0x20
[  680.854957]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  680.860228]  ? rcu_softirq_qs+0x20/0x20
[  680.864200]  ? trace_hardirqs_off_caller+0x310/0x310
[  680.869306]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  680.874844]  ? check_preemption_disabled+0x48/0x280
[  680.879865]  handle_mm_fault+0x54f/0xc70
[  680.883928]  ? __handle_mm_fault+0x5be0/0x5be0
[  680.888532]  ? find_vma+0x34/0x190
[  680.892093]  __do_page_fault+0x5e8/0xe60
[  680.896169]  ? exit_to_usermode_loop+0x1f4/0x380
[  680.900933]  do_page_fault+0xf2/0x7e0
[  680.904743]  ? vmalloc_sync_all+0x30/0x30
[  680.908902]  ? error_entry+0x70/0xd0
[  680.912617]  ? trace_hardirqs_off_caller+0xbb/0x310
[  680.917644]  ? trace_hardirqs_on_caller+0xc0/0x310
[  680.922573]  ? syscall_return_slowpath+0x5e0/0x5e0
[  680.927501]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  680.932360]  ? trace_hardirqs_on_caller+0x310/0x310
[  680.937376]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  680.942830]  ? prepare_exit_to_usermode+0x291/0x3b0
[  680.947848]  ? page_fault+0x8/0x30
[  680.951388]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  680.956244]  ? page_fault+0x8/0x30
[  680.959801]  page_fault+0x1e/0x30
[  680.963255] RIP: 0033:0x45db60
[  680.966462] Code: Bad RIP value.
[  680.969819] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  680.975179] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  680.982472] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  680.989735] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  680.997008] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  681.004278] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  681.011570] warn_alloc_show_mem: 1 callbacks suppressed
[  681.011581] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  681.011583] Mem-Info:
[  681.011614] active_anon:42936 inactive_anon:306 isolated_anon:0
[  681.011614]  active_file:13 inactive_file:13 isolated_file:0
[  681.011614]  unevictable:0 dirty:0 writeback:0 unstable:0
[  681.011614]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  681.011614]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  681.011614]  free:13785 free_pcp:492 free_cma:0
[  681.016949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  681.023797] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  681.026194] Call Trace:
[  681.058989] 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
[  681.068341]  dump_stack+0x244/0x39d
[  681.095896] lowmem_reserve[]: 0 2818 6321 6321
[  681.098476]  ? dump_stack_print_info.cold.1+0x20/0x20
[  681.124559] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  681.128189]  warn_alloc.cold.116+0xb7/0x1bd
[  681.132739] lowmem_reserve[]: 0 0 3503 3503
[  681.137933]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  681.165060] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  681.169372]  ? lock_downgrade+0x900/0x900
[  681.173668] lowmem_reserve[]: 0 0 0 0
[  681.178504]  ? trace_hardirqs_off+0xb8/0x310
[  681.207648] 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
[  681.211793]  ? trace_hardirqs_off+0xb8/0x310
[  681.215561] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  681.219979]  __alloc_pages_slowpath+0x2651/0x2de0
[  681.233471] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  681.237895]  ? warn_alloc+0x120/0x120
[  681.253028] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  681.257858]  ? print_usage_bug+0xc0/0xc0
[  681.273012] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  681.276801]  ? warn_alloc+0x120/0x120
[  681.285612] 380 total pagecache pages
[  681.289666]  ? warn_alloc+0x120/0x120
[  681.298217] 0 pages in swap cache
[  681.302001]  ? print_usage_bug+0xc0/0xc0
[  681.305810] Swap cache stats: add 0, delete 0, find 0/0
[  681.309598]  ? print_usage_bug+0xc0/0xc0
[  681.313024] Free swap  = 0kB
[  681.317078]  ? __lock_acquire+0x62f/0x4c20
[  681.322417] Total swap = 0kB
[  681.326482]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  681.329470] 1965979 pages RAM
[  681.333695]  ? should_fail+0x22d/0xd01
[  681.336691] 0 pages HighMem/MovableOnly
[  681.342223]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  681.345305] 342854 pages reserved
[  681.349184]  ? __lock_acquire+0x62f/0x4c20
[  681.353136] 0 pages cma reserved
[  681.358242]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  681.361726] aoe: skb alloc failure
[  681.365894]  ? __lock_acquire+0x62f/0x4c20
[  681.365910]  ? should_fail+0x22d/0xd01
[  681.369314] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  681.374346]  ? find_held_lock+0x36/0x1c0
[  681.377863] syz-fuzzer cpuset=/ mems_allowed=0
[  681.382095]  ? mark_held_locks+0x130/0x130
[  681.409022]  ? mark_held_locks+0x130/0x130
[  681.413251]  ? zap_class+0x640/0x640
[  681.416970]  ? mark_held_locks+0xc7/0x130
[  681.421120]  ? do_raw_spin_unlock+0xa7/0x330
[  681.425529]  ? zap_class+0x640/0x640
[  681.429267]  ? print_usage_bug+0xc0/0xc0
[  681.433334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  681.438876]  ? check_preemption_disabled+0x48/0x280
[  681.443918]  ? __lock_is_held+0xb5/0x140
[  681.447985]  __alloc_pages_nodemask+0xad8/0xea0
[  681.452651]  ? zap_class+0x640/0x640
[  681.456373]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  681.461416]  ? find_held_lock+0x36/0x1c0
[  681.465483]  ? ____cache_alloc_node+0x1c7/0x1e0
[  681.470152]  ? lock_downgrade+0x900/0x900
[  681.474307]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  681.479855]  cache_grow_begin+0xa5/0x8c0
[  681.483931]  ? do_raw_spin_unlock+0xa7/0x330
[  681.488359]  fallback_alloc+0x204/0x2e0
[  681.492340]  ____cache_alloc_node+0x1c7/0x1e0
[  681.496847]  kmem_cache_alloc_node+0xe3/0x730
[  681.501343]  ? ipv6_get_ifaddr+0x42e/0x620
[  681.505617]  __alloc_skb+0x119/0x770
[  681.509325]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  681.514608]  ? netdev_alloc_frag+0x1f0/0x1f0
[  681.519018]  ? lock_downgrade+0x900/0x900
[  681.523176]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  681.528715]  ? refcount_sub_and_test_checked+0x203/0x310
[  681.534194]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  681.539658]  ? addrconf_rs_timer+0x690/0x690
[  681.544082]  ndisc_alloc_skb+0x144/0x340
[  681.548162]  ndisc_send_rs+0x331/0x6e0
[  681.552089]  addrconf_rs_timer+0x314/0x690
[  681.556330]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  681.560578]  call_timer_fn+0x272/0x920
[  681.564463]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  681.568694]  ? process_timeout+0x40/0x40
[  681.572779]  ? __run_timers+0x7da/0xc70
[  681.576790]  ? _raw_spin_unlock_irq+0x27/0x80
[  681.581283]  ? _raw_spin_unlock_irq+0x27/0x80
[  681.585802]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  681.590034]  ? lockdep_hardirqs_on+0x296/0x5b0
[  681.594615]  ? trace_hardirqs_on+0xbd/0x310
[  681.598937]  ? kasan_check_read+0x11/0x20
[  681.603078]  ? __run_timers+0x7da/0xc70
[  681.607054]  ? trace_hardirqs_off_caller+0x310/0x310
[  681.612162]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  681.616406]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  681.620637]  __run_timers+0x7e5/0xc70
[  681.624448]  ? timer_fixup_init+0x70/0x70
[  681.628594]  ? _raw_spin_unlock_irq+0x27/0x80
[  681.633089]  ? _raw_spin_unlock_irq+0x27/0x80
[  681.637585]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  681.642169]  ? trace_hardirqs_on+0xbd/0x310
[  681.646488]  ? kasan_check_read+0x11/0x20
[  681.650634]  ? finish_task_switch+0x1f4/0x910
[  681.655126]  ? trace_hardirqs_off_caller+0x310/0x310
[  681.660225]  ? compat_start_thread+0x80/0x80
[  681.664653]  ? pvclock_read_flags+0x160/0x160
[  681.669143]  ? __switch_to_asm+0x34/0x70
[  681.673208]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  681.678741]  ? check_preemption_disabled+0x48/0x280
[  681.683809]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  681.689351]  ? rcu_pm_notify+0xc0/0xc0
[  681.693237]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  681.698805]  ? check_preemption_disabled+0x48/0x280
[  681.703825]  run_timer_softirq+0x52/0xb0
[  681.707884]  ? rcu_read_lock_sched_held+0x14f/0x180
[  681.712903]  __do_softirq+0x308/0xb7e
[  681.716721]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  681.721519]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  681.726633]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  681.732099]  ? trace_hardirqs_on+0x310/0x310
[  681.736526]  ? schedule+0x108/0x460
[  681.740160]  ? trace_hardirqs_off+0xb8/0x310
[  681.744583]  ? smpboot_thread_fn+0x68b/0xa00
[  681.748989]  ? trace_hardirqs_on+0x310/0x310
[  681.753412]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  681.758978]  ? check_preemption_disabled+0x48/0x280
[  681.763994]  ? takeover_tasklets+0xa90/0xa90
[  681.768403]  run_ksoftirqd+0x5e/0x100
[  681.772200]  smpboot_thread_fn+0x68b/0xa00
[  681.776436]  ? sort_range+0x30/0x30
[  681.780060]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  681.785164]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  681.790702]  ? __kthread_parkme+0xfb/0x1a0
[  681.794935]  ? sort_range+0x30/0x30
[  681.798559]  kthread+0x35a/0x440
[  681.801941]  ? kthread_stop+0x900/0x900
[  681.805930]  ret_from_fork+0x3a/0x50
[  681.809664] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  681.809733] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  681.816667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  681.816675] Call Trace:
[  681.823240] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  681.832484]  <IRQ>
[  681.835053] ksoftirqd/0 cpuset=/ mems_allowed=0
[  681.845368]  dump_stack+0x244/0x39d
[  681.855768]  ? dump_stack_print_info.cold.1+0x20/0x20
[  681.860975]  warn_alloc.cold.116+0xb7/0x1bd
[  681.865300]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  681.870145]  ? lock_downgrade+0x900/0x900
[  681.874301]  ? trace_hardirqs_off+0xb8/0x310
[  681.878715]  ? trace_hardirqs_off+0xb8/0x310
[  681.883151]  __alloc_pages_slowpath+0x2651/0x2de0
[  681.888015]  ? warn_alloc+0x120/0x120
[  681.891824]  ? warn_alloc+0x120/0x120
[  681.895625]  ? warn_alloc+0x120/0x120
[  681.899443]  ? print_usage_bug+0xc0/0xc0
[  681.903504]  ? print_usage_bug+0xc0/0xc0
[  681.907567]  ? ktime_get+0x2c1/0x400
[  681.911290]  ? check_preemption_disabled+0x48/0x280
[  681.916300]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  681.920798]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  681.926348]  ? should_fail+0x22d/0xd01
[  681.930250]  ? kasan_check_read+0x11/0x20
[  681.934407]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  681.939511]  ? __lock_acquire+0x62f/0x4c20
[  681.943754]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  681.948855]  ? should_fail+0x22d/0xd01
[  681.952743]  ? print_usage_bug+0xc0/0xc0
[  681.956821]  ? mark_held_locks+0x130/0x130
[  681.961057]  ? mark_held_locks+0x130/0x130
[  681.965292]  ? check_preemption_disabled+0x48/0x280
[  681.970314]  ? zap_class+0x640/0x640
[  681.974032]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  681.978791]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  681.984330]  ? check_preemption_disabled+0x48/0x280
[  681.989359]  ? __lock_is_held+0xb5/0x140
[  681.993426]  __alloc_pages_nodemask+0xad8/0xea0
[  681.998095]  ? zap_class+0x640/0x640
[  682.001816]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  682.006855]  ? find_held_lock+0x36/0x1c0
[  682.010923]  ? ____cache_alloc_node+0x1c7/0x1e0
[  682.015592]  ? lock_downgrade+0x900/0x900
[  682.019745]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  682.025344]  cache_grow_begin+0xa5/0x8c0
[  682.029402]  ? do_raw_spin_unlock+0xa7/0x330
[  682.033828]  fallback_alloc+0x204/0x2e0
[  682.037826]  ____cache_alloc_node+0x1c7/0x1e0
[  682.042328]  kmem_cache_alloc_node+0xe3/0x730
[  682.046823]  ? lockdep_hardirqs_on+0x296/0x5b0
[  682.051439]  __alloc_skb+0x119/0x770
[  682.055163]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  682.060534]  ? netdev_alloc_frag+0x1f0/0x1f0
[  682.064951]  ? vprintk_default+0x28/0x30
[  682.069015]  ? vprintk_func+0x85/0x181
[  682.072902]  ? printk+0xa7/0xcf
[  682.076185]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  682.080955]  new_skb+0x26/0x1c0
[  682.084234]  aoecmd_cfg+0x279/0x7f0
[  682.087865]  ? find_held_lock+0x36/0x1c0
[  682.091928]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  682.096254]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  682.101824]  ? __lock_is_held+0xb5/0x140
[  682.105895]  discover_timer+0x50/0x60
[  682.109691]  call_timer_fn+0x272/0x920
[  682.113592]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  682.118451]  ? process_timeout+0x40/0x40
[  682.122518]  ? mark_held_locks+0xc7/0x130
[  682.126669]  ? _raw_spin_unlock_irq+0x27/0x80
[  682.131163]  ? _raw_spin_unlock_irq+0x27/0x80
[  682.135657]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  682.140498]  ? lockdep_hardirqs_on+0x296/0x5b0
[  682.145117]  ? trace_hardirqs_on+0xbd/0x310
[  682.149449]  ? kasan_check_read+0x11/0x20
[  682.153605]  ? __run_timers+0x7da/0xc70
[  682.157582]  ? trace_hardirqs_off_caller+0x310/0x310
[  682.162699]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  682.167541]  __run_timers+0x7e5/0xc70
[  682.171349]  ? timer_fixup_init+0x70/0x70
[  682.175498]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  682.180530]  ? zap_class+0x640/0x640
[  682.184246]  ? print_usage_bug+0xc0/0xc0
[  682.188312]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  682.193514]  ? find_held_lock+0x36/0x1c0
[  682.197582]  ? zap_class+0x640/0x640
[  682.201317]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  682.206858]  ? check_preemption_disabled+0x48/0x280
[  682.211883]  ? __lock_is_held+0xb5/0x140
[  682.215946]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  682.221483]  ? check_preemption_disabled+0x48/0x280
[  682.226502]  run_timer_softirq+0x52/0xb0
[  682.230563]  ? rcu_read_lock_sched_held+0x14f/0x180
[  682.235578]  __do_softirq+0x308/0xb7e
[  682.239382]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  682.243876]  ? lock_downgrade+0x900/0x900
[  682.248030]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  682.253144]  ? pvclock_read_flags+0x160/0x160
[  682.257641]  ? lapic_next_event+0x5a/0x90
[  682.261792]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  682.267335]  ? kvm_clock_read+0x18/0x30
[  682.271312]  ? kvm_sched_clock_read+0x9/0x20
[  682.275738]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  682.281291]  ? check_preemption_disabled+0x48/0x280
[  682.286316]  irq_exit+0x17f/0x1c0
[  682.289780]  smp_apic_timer_interrupt+0x1cb/0x760
[  682.294624]  ? smp_reschedule_interrupt+0x109/0x650
[  682.299640]  ? smp_call_function_single_interrupt+0x650/0x650
[  682.305521]  ? interrupt_entry+0xb5/0xc0
[  682.309582]  ? trace_hardirqs_off_caller+0xbb/0x310
[  682.314601]  ? trace_hardirqs_off_caller+0xbb/0x310
[  682.319632]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  682.324478]  ? trace_hardirqs_on_caller+0x310/0x310
[  682.329494]  ? trace_hardirqs_on_caller+0x310/0x310
[  682.334527]  ? task_prio+0x50/0x50
[  682.338071]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  682.343627]  ? check_preemption_disabled+0x48/0x280
[  682.348659]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  682.353521]  apic_timer_interrupt+0xf/0x20
[  682.357743]  </IRQ>
[  682.359988] RIP: 0010:dump_stack+0x358/0x39d
[  682.364393] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  682.383290] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  682.390994] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  682.398259] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  682.405524] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  682.412804] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  682.420065] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  682.427350]  ? dump_stack+0x34f/0x39d
[  682.431162]  ? dump_stack_print_info.cold.1+0x20/0x20
[  682.436356]  ? mark_held_locks+0x130/0x130
[  682.440589]  ? mark_held_locks+0x130/0x130
[  682.444837]  dump_header+0x27b/0xf72
[  682.448566]  ? pagefault_out_of_memory+0x197/0x197
[  682.453518]  ? __lock_acquire+0x62f/0x4c20
[  682.457762]  ? percpu_ref_get_many+0x240/0x240
[  682.462348]  ? print_usage_bug+0xc0/0xc0
[  682.466416]  ? zap_class+0x640/0x640
[  682.470131]  ? print_usage_bug+0xc0/0xc0
[  682.474191]  ? print_usage_bug+0xc0/0xc0
[  682.478262]  ? zap_class+0x640/0x640
[  682.482000]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  682.487543]  ? find_held_lock+0x36/0x1c0
[  682.491616]  ? mark_held_locks+0xc7/0x130
[  682.495773]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  682.500880]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  682.505988]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  682.510572]  ? trace_hardirqs_on+0xbd/0x310
[  682.514893]  ? kasan_check_read+0x11/0x20
[  682.519038]  ? ___ratelimit+0x3b4/0x672
[  682.523018]  ? trace_hardirqs_off_caller+0x310/0x310
[  682.528137]  ? trace_hardirqs_on+0x310/0x310
[  682.532545]  ? lock_downgrade+0x900/0x900
[  682.536711]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  682.541822]  ? ___ratelimit+0x3b9/0x672
[  682.545824]  ? idr_get_free+0xf70/0xf70
[  682.549801]  ? find_held_lock+0x36/0x1c0
[  682.554006]  oom_kill_process.cold.27+0x10/0x903
[  682.558803]  ? zap_class+0x640/0x640
[  682.562525]  ? check_preemption_disabled+0x48/0x280
[  682.567595]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  682.572518]  ? kasan_check_read+0x11/0x20
[  682.576661]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  682.581942]  ? oom_evaluate_task+0x540/0x540
[  682.586354]  ? find_held_lock+0x36/0x1c0
[  682.590427]  ? out_of_memory+0x974/0x1430
[  682.594604]  ? lock_downgrade+0x900/0x900
[  682.598759]  ? check_preemption_disabled+0x48/0x280
[  682.603786]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  682.608743]  ? kasan_check_read+0x11/0x20
[  682.612899]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  682.618172]  ? rcu_softirq_qs+0x20/0x20
[  682.622148]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  682.627681]  ? oom_evaluate_task+0x302/0x540
[  682.632096]  out_of_memory+0xa84/0x1430
[  682.636079]  ? oom_killer_disable+0x3a0/0x3a0
[  682.640574]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  682.645505]  ? __ww_mutex_check_waiters+0x160/0x160
[  682.650530]  __alloc_pages_slowpath+0x232c/0x2de0
[  682.655416]  ? warn_alloc+0x120/0x120
[  682.659215]  ? mark_held_locks+0x130/0x130
[  682.663458]  ? find_get_entry+0xaae/0x1120
[  682.667704]  ? filemap_map_pages+0x1a20/0x1a20
[  682.672294]  ? zap_class+0x640/0x640
[  682.676013]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  682.681559]  ? check_preemption_disabled+0x48/0x280
[  682.687075]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  682.692611]  ? should_fail+0x22d/0xd01
[  682.696506]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  682.701605]  ? zap_class+0x640/0x640
[  682.705363]  ? __lock_is_held+0xb5/0x140
[  682.709434]  ? mark_held_locks+0x130/0x130
[  682.713674]  ? lock_release+0xa00/0xa00
[  682.717646]  ? perf_trace_sched_process_exec+0x860/0x860
[  682.723095]  ? xa_load+0x2ba/0x460
[  682.726636]  ? lock_downgrade+0x900/0x900
[  682.730802]  ? __might_sleep+0x95/0x190
[  682.734788]  __alloc_pages_nodemask+0xad8/0xea0
[  682.739469]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  682.744483]  ? __page_cache_alloc+0x191/0x5c0
[  682.748975]  ? xa_load+0x2e1/0x460
[  682.752514]  ? xa_clear_mark+0x40/0x40
[  682.756401]  ? zap_class+0x640/0x640
[  682.760124]  ? zap_class+0x640/0x640
[  682.763838]  ? zap_class+0x640/0x640
[  682.767565]  ? __do_page_cache_readahead+0x663/0x810
[  682.772686]  ? find_held_lock+0x36/0x1c0
[  682.776771]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  682.782324]  alloc_pages_current+0x173/0x350
[  682.786777]  __page_cache_alloc+0x38c/0x5c0
[  682.791103]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  682.796028]  ? kasan_check_read+0x11/0x20
[  682.800173]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  682.805448]  ? generic_perform_write+0x6a0/0x6a0
[  682.810202]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  682.815760]  ? check_preemption_disabled+0x48/0x280
[  682.820807]  filemap_fault+0x1595/0x25f0
[  682.824885]  ? __lock_page_or_retry+0xa00/0xa00
[  682.829598]  ? mark_held_locks+0x130/0x130
[  682.833854]  ? filemap_map_pages+0xd6b/0x1a20
[  682.838346]  ? lock_downgrade+0x900/0x900
[  682.842489]  ? check_preemption_disabled+0x48/0x280
[  682.847505]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  682.852430]  ? kasan_check_read+0x11/0x20
[  682.856575]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  682.861863]  ? rcu_softirq_qs+0x20/0x20
[  682.865850]  ? filemap_map_pages+0xd92/0x1a20
[  682.870350]  ? print_usage_bug+0xc0/0xc0
[  682.874418]  ? find_get_entries_tag+0x1400/0x1400
[  682.879285]  ? __kasan_slab_free+0x102/0x150
[  682.883697]  ? kasan_slab_free+0xe/0x10
[  682.887670]  ? kmem_cache_free+0x83/0x290
[  682.891830]  ? __sigqueue_free.part.29+0x74/0x90
[  682.896604]  ? lock_acquire+0x1ed/0x520
[  682.900589]  ? ext4_filemap_fault+0x7a/0xad
[  682.904914]  ? lock_release+0xa00/0xa00
[  682.908900]  ? perf_trace_sched_process_exec+0x860/0x860
[  682.914353]  ? print_usage_bug+0xc0/0xc0
[  682.918412]  ? print_usage_bug+0xc0/0xc0
[  682.922494]  ? down_read+0x8d/0x120
[  682.926116]  ? ext4_filemap_fault+0x7a/0xad
[  682.930438]  ? __down_interruptible+0x700/0x700
[  682.935114]  ext4_filemap_fault+0x82/0xad
[  682.939261]  __do_fault+0x100/0x6b0
[  682.942918]  ? pmd_devmap_trans_unstable+0x220/0x220
[  682.948021]  ? mark_held_locks+0x130/0x130
[  682.952255]  ? mark_held_locks+0x130/0x130
[  682.956494]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  682.962032]  ? rcu_pm_notify+0xc0/0xc0
[  682.965930]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  682.971474]  __handle_mm_fault+0x3ea0/0x5be0
[  682.975897]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  682.980738]  ? _raw_spin_unlock_irq+0x27/0x80
[  682.985284]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  682.989870]  ? trace_hardirqs_on+0xbd/0x310
[  682.994192]  ? kasan_check_read+0x11/0x20
[  682.998336]  ? __set_current_blocked+0xdf/0x120
[  683.003007]  ? trace_hardirqs_off_caller+0x310/0x310
[  683.008126]  ? zap_class+0x640/0x640
[  683.011843]  ? zap_class+0x640/0x640
[  683.015581]  ? find_held_lock+0x36/0x1c0
[  683.019668]  ? handle_mm_fault+0x42a/0xc70
[  683.023921]  ? lock_downgrade+0x900/0x900
[  683.028069]  ? check_preemption_disabled+0x48/0x280
[  683.033088]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  683.038018]  ? kasan_check_read+0x11/0x20
[  683.042178]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  683.047465]  ? rcu_softirq_qs+0x20/0x20
[  683.051452]  ? trace_hardirqs_off_caller+0x310/0x310
[  683.056557]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  683.062096]  ? check_preemption_disabled+0x48/0x280
[  683.067136]  handle_mm_fault+0x54f/0xc70
[  683.071196]  ? __handle_mm_fault+0x5be0/0x5be0
[  683.075785]  ? find_vma+0x34/0x190
[  683.079335]  __do_page_fault+0x5e8/0xe60
[  683.083395]  ? exit_to_usermode_loop+0x1f4/0x380
[  683.088158]  do_page_fault+0xf2/0x7e0
[  683.091960]  ? vmalloc_sync_all+0x30/0x30
[  683.096107]  ? error_entry+0x70/0xd0
[  683.099825]  ? trace_hardirqs_off_caller+0xbb/0x310
[  683.104837]  ? trace_hardirqs_on_caller+0xc0/0x310
[  683.109784]  ? syscall_return_slowpath+0x5e0/0x5e0
[  683.114728]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  683.119591]  ? trace_hardirqs_on_caller+0x310/0x310
[  683.124608]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  683.130062]  ? prepare_exit_to_usermode+0x291/0x3b0
[  683.135081]  ? page_fault+0x8/0x30
[  683.138620]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  683.143466]  ? page_fault+0x8/0x30
[  683.147006]  page_fault+0x1e/0x30
[  683.150455] RIP: 0033:0x45db60
[  683.153689] Code: Bad RIP value.
[  683.157047] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  683.162422] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  683.169701] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  683.176965] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  683.184229] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  683.191509] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  683.198805] warn_alloc_show_mem: 1 callbacks suppressed
[  683.198817] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  683.198819] Mem-Info:
[  683.198850] active_anon:42936 inactive_anon:306 isolated_anon:0
[  683.198850]  active_file:13 inactive_file:13 isolated_file:0
[  683.198850]  unevictable:0 dirty:0 writeback:0 unstable:0
[  683.198850]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  683.198850]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  683.198850]  free:13785 free_pcp:492 free_cma:0
[  683.204189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  683.211027] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  683.213419] Call Trace:
[  683.246193] 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
[  683.255539]  dump_stack+0x244/0x39d
[  683.283110] lowmem_reserve[]: 0 2818 6321 6321
[  683.285707]  ? dump_stack_print_info.cold.1+0x20/0x20
[  683.311789] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  683.315436]  warn_alloc.cold.116+0xb7/0x1bd
[  683.319982] lowmem_reserve[]: 0 0 3503 3503
[  683.325168]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  683.352300] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  683.356630]  ? lock_downgrade+0x900/0x900
[  683.360925] lowmem_reserve[]: 0 0 0 0
[  683.365782]  ? trace_hardirqs_off+0xb8/0x310
[  683.394890] 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
[  683.399035]  ? trace_hardirqs_off+0xb8/0x310
[  683.402811] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  683.407248]  __alloc_pages_slowpath+0x2651/0x2de0
[  683.420766] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  683.425210]  ? warn_alloc+0x120/0x120
[  683.440369] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  683.445196]  ? print_usage_bug+0xc0/0xc0
[  683.460350] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  683.464139]  ? warn_alloc+0x120/0x120
[  683.472949] 380 total pagecache pages
[  683.477003]  ? warn_alloc+0x120/0x120
[  683.485559] 0 pages in swap cache
[  683.489340]  ? print_usage_bug+0xc0/0xc0
[  683.493114] Swap cache stats: add 0, delete 0, find 0/0
[  683.496904]  ? print_usage_bug+0xc0/0xc0
[  683.500330] Free swap  = 0kB
[  683.504383]  ? __lock_acquire+0x62f/0x4c20
[  683.509722] Total swap = 0kB
[  683.513787]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  683.516776] 1965979 pages RAM
[  683.516784] 0 pages HighMem/MovableOnly
[  683.521014]  ? should_fail+0x22d/0xd01
[  683.524008] 342854 pages reserved
[  683.529539]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  683.532620] 0 pages cma reserved
[  683.536583]  ? __lock_acquire+0x62f/0x4c20
[  683.540500] aoe: skb alloc failure
[  683.543891]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  683.549025] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  683.552326]  ? __lock_acquire+0x62f/0x4c20
[  683.556534] syz-fuzzer cpuset=/ mems_allowed=0
[  683.560066]  ? should_fail+0x22d/0xd01
[  683.588043]  ? find_held_lock+0x36/0x1c0
[  683.592115]  ? mark_held_locks+0x130/0x130
[  683.596357]  ? mark_held_locks+0x130/0x130
[  683.600613]  ? zap_class+0x640/0x640
[  683.604327]  ? mark_held_locks+0xc7/0x130
[  683.608496]  ? do_raw_spin_unlock+0xa7/0x330
[  683.612906]  ? zap_class+0x640/0x640
[  683.616617]  ? print_usage_bug+0xc0/0xc0
[  683.620684]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  683.626233]  ? check_preemption_disabled+0x48/0x280
[  683.631264]  ? __lock_is_held+0xb5/0x140
[  683.635335]  __alloc_pages_nodemask+0xad8/0xea0
[  683.640008]  ? zap_class+0x640/0x640
[  683.643740]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  683.648844]  ? find_held_lock+0x36/0x1c0
[  683.652914]  ? ____cache_alloc_node+0x1c7/0x1e0
[  683.657584]  ? lock_downgrade+0x900/0x900
[  683.661740]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  683.667298]  cache_grow_begin+0xa5/0x8c0
[  683.671357]  ? do_raw_spin_unlock+0xa7/0x330
[  683.675800]  fallback_alloc+0x204/0x2e0
[  683.679792]  ____cache_alloc_node+0x1c7/0x1e0
[  683.684292]  kmem_cache_alloc_node+0xe3/0x730
[  683.688794]  ? ipv6_get_ifaddr+0x42e/0x620
[  683.693038]  __alloc_skb+0x119/0x770
[  683.696762]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  683.702081]  ? netdev_alloc_frag+0x1f0/0x1f0
[  683.706489]  ? lock_downgrade+0x900/0x900
[  683.710643]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  683.716179]  ? refcount_sub_and_test_checked+0x203/0x310
[  683.721634]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  683.727083]  ? addrconf_rs_timer+0x690/0x690
[  683.731503]  ndisc_alloc_skb+0x144/0x340
[  683.735572]  ndisc_send_rs+0x331/0x6e0
[  683.739466]  addrconf_rs_timer+0x314/0x690
[  683.743706]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  683.747949]  call_timer_fn+0x272/0x920
[  683.751834]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  683.756071]  ? process_timeout+0x40/0x40
[  683.760138]  ? __run_timers+0x7da/0xc70
[  683.764116]  ? _raw_spin_unlock_irq+0x27/0x80
[  683.768609]  ? _raw_spin_unlock_irq+0x27/0x80
[  683.773103]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  683.777338]  ? lockdep_hardirqs_on+0x296/0x5b0
[  683.781939]  ? trace_hardirqs_on+0xbd/0x310
[  683.786265]  ? kasan_check_read+0x11/0x20
[  683.790411]  ? __run_timers+0x7da/0xc70
[  683.794385]  ? trace_hardirqs_off_caller+0x310/0x310
[  683.799497]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  683.803725]  __run_timers+0x7e5/0xc70
[  683.807542]  ? timer_fixup_init+0x70/0x70
[  683.811692]  ? _raw_spin_unlock_irq+0x27/0x80
[  683.816185]  ? _raw_spin_unlock_irq+0x27/0x80
[  683.820692]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  683.825274]  ? trace_hardirqs_on+0xbd/0x310
[  683.829620]  ? kasan_check_read+0x11/0x20
[  683.833779]  ? finish_task_switch+0x1f4/0x910
[  683.838284]  ? trace_hardirqs_off_caller+0x310/0x310
[  683.843402]  ? compat_start_thread+0x80/0x80
[  683.847830]  ? pvclock_read_flags+0x160/0x160
[  683.852320]  ? __switch_to_asm+0x34/0x70
[  683.856424]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  683.861980]  ? check_preemption_disabled+0x48/0x280
[  683.867005]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  683.872539]  ? rcu_pm_notify+0xc0/0xc0
[  683.876442]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  683.881982]  ? check_preemption_disabled+0x48/0x280
[  683.887001]  run_timer_softirq+0x52/0xb0
[  683.891058]  ? rcu_read_lock_sched_held+0x14f/0x180
[  683.896079]  __do_softirq+0x308/0xb7e
[  683.899885]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  683.904646]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  683.909779]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  683.915229]  ? trace_hardirqs_on+0x310/0x310
[  683.919644]  ? schedule+0x108/0x460
[  683.923282]  ? trace_hardirqs_off+0xb8/0x310
[  683.927689]  ? smpboot_thread_fn+0x68b/0xa00
[  683.932131]  ? trace_hardirqs_on+0x310/0x310
[  683.936556]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  683.942092]  ? check_preemption_disabled+0x48/0x280
[  683.947107]  ? takeover_tasklets+0xa90/0xa90
[  683.951516]  run_ksoftirqd+0x5e/0x100
[  683.955316]  smpboot_thread_fn+0x68b/0xa00
[  683.959552]  ? sort_range+0x30/0x30
[  683.963180]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  683.968281]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  683.973821]  ? __kthread_parkme+0xfb/0x1a0
[  683.978057]  ? sort_range+0x30/0x30
[  683.981679]  kthread+0x35a/0x440
[  683.985061]  ? kthread_stop+0x900/0x900
[  683.989040]  ret_from_fork+0x3a/0x50
[  683.992801] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  683.992878] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  683.999810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  683.999815] Call Trace:
[  683.999822]  <IRQ>
[  683.999841]  dump_stack+0x244/0x39d
[  683.999860]  ? dump_stack_print_info.cold.1+0x20/0x20
[  684.006386] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  684.015683]  warn_alloc.cold.116+0xb7/0x1bd
[  684.018233] ksoftirqd/0 cpuset=/ mems_allowed=0
[  684.020372]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  684.053246]  ? lock_downgrade+0x900/0x900
[  684.057453]  ? trace_hardirqs_off+0xb8/0x310
[  684.061881]  ? trace_hardirqs_off+0xb8/0x310
[  684.066305]  __alloc_pages_slowpath+0x2651/0x2de0
[  684.071177]  ? warn_alloc+0x120/0x120
[  684.074988]  ? warn_alloc+0x120/0x120
[  684.078806]  ? warn_alloc+0x120/0x120
[  684.082608]  ? print_usage_bug+0xc0/0xc0
[  684.086672]  ? print_usage_bug+0xc0/0xc0
[  684.090756]  ? ktime_get+0x2c1/0x400
[  684.094490]  ? check_preemption_disabled+0x48/0x280
[  684.099506]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  684.104004]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  684.109544]  ? should_fail+0x22d/0xd01
[  684.113432]  ? kasan_check_read+0x11/0x20
[  684.117582]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  684.122690]  ? __lock_acquire+0x62f/0x4c20
[  684.126928]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  684.132035]  ? should_fail+0x22d/0xd01
[  684.135921]  ? print_usage_bug+0xc0/0xc0
[  684.139993]  ? mark_held_locks+0x130/0x130
[  684.144231]  ? mark_held_locks+0x130/0x130
[  684.148477]  ? check_preemption_disabled+0x48/0x280
[  684.153501]  ? zap_class+0x640/0x640
[  684.157220]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  684.161975]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  684.167515]  ? check_preemption_disabled+0x48/0x280
[  684.172559]  ? __lock_is_held+0xb5/0x140
[  684.176627]  __alloc_pages_nodemask+0xad8/0xea0
[  684.181298]  ? zap_class+0x640/0x640
[  684.185016]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  684.190041]  ? find_held_lock+0x36/0x1c0
[  684.194111]  ? ____cache_alloc_node+0x1c7/0x1e0
[  684.198788]  ? lock_downgrade+0x900/0x900
[  684.202943]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  684.208500]  cache_grow_begin+0xa5/0x8c0
[  684.212558]  ? do_raw_spin_unlock+0xa7/0x330
[  684.217014]  fallback_alloc+0x204/0x2e0
[  684.221008]  ____cache_alloc_node+0x1c7/0x1e0
[  684.225508]  kmem_cache_alloc_node+0xe3/0x730
[  684.230006]  ? lockdep_hardirqs_on+0x296/0x5b0
[  684.234628]  __alloc_skb+0x119/0x770
[  684.238337]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  684.243704]  ? netdev_alloc_frag+0x1f0/0x1f0
[  684.248119]  ? vprintk_default+0x28/0x30
[  684.252182]  ? vprintk_func+0x85/0x181
[  684.256075]  ? printk+0xa7/0xcf
[  684.259356]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  684.264123]  new_skb+0x26/0x1c0
[  684.267403]  aoecmd_cfg+0x279/0x7f0
[  684.271027]  ? find_held_lock+0x36/0x1c0
[  684.275126]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  684.279452]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  684.285004]  ? __lock_is_held+0xb5/0x140
[  684.289090]  discover_timer+0x50/0x60
[  684.292888]  call_timer_fn+0x272/0x920
[  684.296788]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  684.301628]  ? process_timeout+0x40/0x40
[  684.305699]  ? mark_held_locks+0xc7/0x130
[  684.309853]  ? _raw_spin_unlock_irq+0x27/0x80
[  684.314375]  ? _raw_spin_unlock_irq+0x27/0x80
[  684.318870]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  684.323711]  ? lockdep_hardirqs_on+0x296/0x5b0
[  684.328297]  ? trace_hardirqs_on+0xbd/0x310
[  684.332618]  ? kasan_check_read+0x11/0x20
[  684.336772]  ? __run_timers+0x7da/0xc70
[  684.340755]  ? trace_hardirqs_off_caller+0x310/0x310
[  684.345877]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  684.350718]  __run_timers+0x7e5/0xc70
[  684.354537]  ? timer_fixup_init+0x70/0x70
[  684.358696]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  684.363713]  ? zap_class+0x640/0x640
[  684.367428]  ? print_usage_bug+0xc0/0xc0
[  684.371491]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  684.376688]  ? find_held_lock+0x36/0x1c0
[  684.380763]  ? zap_class+0x640/0x640
[  684.384481]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  684.390031]  ? check_preemption_disabled+0x48/0x280
[  684.395057]  ? __lock_is_held+0xb5/0x140
[  684.399132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  684.404669]  ? check_preemption_disabled+0x48/0x280
[  684.409706]  run_timer_softirq+0x52/0xb0
[  684.413774]  ? rcu_read_lock_sched_held+0x14f/0x180
[  684.418803]  __do_softirq+0x308/0xb7e
[  684.422609]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  684.427098]  ? lock_downgrade+0x900/0x900
[  684.431251]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  684.436362]  ? pvclock_read_flags+0x160/0x160
[  684.440872]  ? lapic_next_event+0x5a/0x90
[  684.445023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  684.450568]  ? kvm_clock_read+0x18/0x30
[  684.454542]  ? kvm_sched_clock_read+0x9/0x20
[  684.458952]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  684.464490]  ? check_preemption_disabled+0x48/0x280
[  684.469516]  irq_exit+0x17f/0x1c0
[  684.472968]  smp_apic_timer_interrupt+0x1cb/0x760
[  684.477824]  ? smp_reschedule_interrupt+0x109/0x650
[  684.482854]  ? smp_call_function_single_interrupt+0x650/0x650
[  684.488736]  ? interrupt_entry+0xb5/0xc0
[  684.492838]  ? trace_hardirqs_off_caller+0xbb/0x310
[  684.497853]  ? trace_hardirqs_off_caller+0xbb/0x310
[  684.502870]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  684.507710]  ? trace_hardirqs_on_caller+0x310/0x310
[  684.512723]  ? trace_hardirqs_on_caller+0x310/0x310
[  684.517756]  ? task_prio+0x50/0x50
[  684.521313]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  684.526852]  ? check_preemption_disabled+0x48/0x280
[  684.531873]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  684.536724]  apic_timer_interrupt+0xf/0x20
[  684.540962]  </IRQ>
[  684.543201] RIP: 0010:dump_stack+0x358/0x39d
[  684.547611] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  684.566626] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  684.574345] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  684.581625] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  684.588893] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  684.596160] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  684.603425] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  684.610709]  ? dump_stack+0x34f/0x39d
[  684.614526]  ? dump_stack_print_info.cold.1+0x20/0x20
[  684.619720]  ? mark_held_locks+0x130/0x130
[  684.623963]  ? mark_held_locks+0x130/0x130
[  684.628200]  dump_header+0x27b/0xf72
[  684.631926]  ? pagefault_out_of_memory+0x197/0x197
[  684.636867]  ? __lock_acquire+0x62f/0x4c20
[  684.641114]  ? percpu_ref_get_many+0x240/0x240
[  684.645701]  ? print_usage_bug+0xc0/0xc0
[  684.649774]  ? zap_class+0x640/0x640
[  684.653492]  ? print_usage_bug+0xc0/0xc0
[  684.657550]  ? print_usage_bug+0xc0/0xc0
[  684.661611]  ? zap_class+0x640/0x640
[  684.665327]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  684.670872]  ? find_held_lock+0x36/0x1c0
[  684.674942]  ? mark_held_locks+0xc7/0x130
[  684.679090]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  684.684196]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  684.689775]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  684.694360]  ? trace_hardirqs_on+0xbd/0x310
[  684.698700]  ? kasan_check_read+0x11/0x20
[  684.702847]  ? ___ratelimit+0x3b4/0x672
[  684.706822]  ? trace_hardirqs_off_caller+0x310/0x310
[  684.711925]  ? trace_hardirqs_on+0x310/0x310
[  684.716349]  ? lock_downgrade+0x900/0x900
[  684.720529]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  684.725658]  ? ___ratelimit+0x3b9/0x672
[  684.729668]  ? idr_get_free+0xf70/0xf70
[  684.733658]  ? find_held_lock+0x36/0x1c0
[  684.737729]  oom_kill_process.cold.27+0x10/0x903
[  684.742496]  ? zap_class+0x640/0x640
[  684.746209]  ? check_preemption_disabled+0x48/0x280
[  684.751225]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  684.756165]  ? kasan_check_read+0x11/0x20
[  684.760313]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  684.765591]  ? oom_evaluate_task+0x540/0x540
[  684.770003]  ? find_held_lock+0x36/0x1c0
[  684.774071]  ? out_of_memory+0x974/0x1430
[  684.778220]  ? lock_downgrade+0x900/0x900
[  684.782368]  ? check_preemption_disabled+0x48/0x280
[  684.787386]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  684.792313]  ? kasan_check_read+0x11/0x20
[  684.796456]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  684.801755]  ? rcu_softirq_qs+0x20/0x20
[  684.805740]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  684.811298]  ? oom_evaluate_task+0x302/0x540
[  684.815724]  out_of_memory+0xa84/0x1430
[  684.819716]  ? oom_killer_disable+0x3a0/0x3a0
[  684.824235]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  684.829171]  ? __ww_mutex_check_waiters+0x160/0x160
[  684.834194]  __alloc_pages_slowpath+0x232c/0x2de0
[  684.839064]  ? warn_alloc+0x120/0x120
[  684.842882]  ? mark_held_locks+0x130/0x130
[  684.847121]  ? find_get_entry+0xaae/0x1120
[  684.851369]  ? filemap_map_pages+0x1a20/0x1a20
[  684.855955]  ? zap_class+0x640/0x640
[  684.859674]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  684.865228]  ? check_preemption_disabled+0x48/0x280
[  684.870246]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  684.875784]  ? should_fail+0x22d/0xd01
[  684.879681]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  684.884813]  ? zap_class+0x640/0x640
[  684.888574]  ? __lock_is_held+0xb5/0x140
[  684.892646]  ? mark_held_locks+0x130/0x130
[  684.896889]  ? lock_release+0xa00/0xa00
[  684.900888]  ? perf_trace_sched_process_exec+0x860/0x860
[  684.906333]  ? xa_load+0x2ba/0x460
[  684.909875]  ? lock_downgrade+0x900/0x900
[  684.914027]  ? __might_sleep+0x95/0x190
[  684.918011]  __alloc_pages_nodemask+0xad8/0xea0
[  684.922703]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  684.927745]  ? __page_cache_alloc+0x191/0x5c0
[  684.932246]  ? xa_load+0x2e1/0x460
[  684.935812]  ? xa_clear_mark+0x40/0x40
[  684.939727]  ? zap_class+0x640/0x640
[  684.943471]  ? zap_class+0x640/0x640
[  684.947182]  ? zap_class+0x640/0x640
[  684.950899]  ? __do_page_cache_readahead+0x663/0x810
[  684.956006]  ? find_held_lock+0x36/0x1c0
[  684.960074]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  684.965614]  alloc_pages_current+0x173/0x350
[  684.970026]  __page_cache_alloc+0x38c/0x5c0
[  684.974352]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  684.979300]  ? kasan_check_read+0x11/0x20
[  684.983445]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  684.988736]  ? generic_perform_write+0x6a0/0x6a0
[  684.993513]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  684.999054]  ? check_preemption_disabled+0x48/0x280
[  685.004082]  filemap_fault+0x1595/0x25f0
[  685.008186]  ? __lock_page_or_retry+0xa00/0xa00
[  685.012872]  ? mark_held_locks+0x130/0x130
[  685.017117]  ? filemap_map_pages+0xd6b/0x1a20
[  685.021627]  ? lock_downgrade+0x900/0x900
[  685.025779]  ? check_preemption_disabled+0x48/0x280
[  685.030800]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  685.035731]  ? kasan_check_read+0x11/0x20
[  685.039886]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  685.045164]  ? rcu_softirq_qs+0x20/0x20
[  685.049147]  ? filemap_map_pages+0xd92/0x1a20
[  685.053650]  ? print_usage_bug+0xc0/0xc0
[  685.057720]  ? find_get_entries_tag+0x1400/0x1400
[  685.062584]  ? __kasan_slab_free+0x102/0x150
[  685.066994]  ? kasan_slab_free+0xe/0x10
[  685.070968]  ? kmem_cache_free+0x83/0x290
[  685.075116]  ? __sigqueue_free.part.29+0x74/0x90
[  685.079903]  ? lock_acquire+0x1ed/0x520
[  685.083892]  ? ext4_filemap_fault+0x7a/0xad
[  685.088217]  ? lock_release+0xa00/0xa00
[  685.092191]  ? perf_trace_sched_process_exec+0x860/0x860
[  685.097644]  ? print_usage_bug+0xc0/0xc0
[  685.101705]  ? print_usage_bug+0xc0/0xc0
[  685.105784]  ? down_read+0x8d/0x120
[  685.109410]  ? ext4_filemap_fault+0x7a/0xad
[  685.113726]  ? __down_interruptible+0x700/0x700
[  685.118409]  ext4_filemap_fault+0x82/0xad
[  685.122561]  __do_fault+0x100/0x6b0
[  685.126188]  ? pmd_devmap_trans_unstable+0x220/0x220
[  685.131295]  ? mark_held_locks+0x130/0x130
[  685.135532]  ? mark_held_locks+0x130/0x130
[  685.139772]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  685.145324]  ? rcu_pm_notify+0xc0/0xc0
[  685.149229]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  685.154799]  __handle_mm_fault+0x3ea0/0x5be0
[  685.159234]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  685.164073]  ? _raw_spin_unlock_irq+0x27/0x80
[  685.168568]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  685.173167]  ? trace_hardirqs_on+0xbd/0x310
[  685.177499]  ? kasan_check_read+0x11/0x20
[  685.181662]  ? __set_current_blocked+0xdf/0x120
[  685.186359]  ? trace_hardirqs_off_caller+0x310/0x310
[  685.191469]  ? zap_class+0x640/0x640
[  685.195183]  ? zap_class+0x640/0x640
[  685.198918]  ? find_held_lock+0x36/0x1c0
[  685.203008]  ? handle_mm_fault+0x42a/0xc70
[  685.207246]  ? lock_downgrade+0x900/0x900
[  685.211396]  ? check_preemption_disabled+0x48/0x280
[  685.216413]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  685.221339]  ? kasan_check_read+0x11/0x20
[  685.225498]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  685.230777]  ? rcu_softirq_qs+0x20/0x20
[  685.234760]  ? trace_hardirqs_off_caller+0x310/0x310
[  685.239862]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  685.245428]  ? check_preemption_disabled+0x48/0x280
[  685.250469]  handle_mm_fault+0x54f/0xc70
[  685.254537]  ? __handle_mm_fault+0x5be0/0x5be0
[  685.259138]  ? find_vma+0x34/0x190
[  685.262681]  __do_page_fault+0x5e8/0xe60
[  685.266779]  ? exit_to_usermode_loop+0x1f4/0x380
[  685.271544]  do_page_fault+0xf2/0x7e0
[  685.275349]  ? vmalloc_sync_all+0x30/0x30
[  685.279500]  ? error_entry+0x70/0xd0
[  685.283216]  ? trace_hardirqs_off_caller+0xbb/0x310
[  685.288490]  ? trace_hardirqs_on_caller+0xc0/0x310
[  685.293424]  ? syscall_return_slowpath+0x5e0/0x5e0
[  685.298353]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  685.303195]  ? trace_hardirqs_on_caller+0x310/0x310
[  685.308211]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  685.313683]  ? prepare_exit_to_usermode+0x291/0x3b0
[  685.318698]  ? page_fault+0x8/0x30
[  685.322299]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  685.327145]  ? page_fault+0x8/0x30
[  685.330685]  page_fault+0x1e/0x30
[  685.334132] RIP: 0033:0x45db60
[  685.337337] Code: Bad RIP value.
[  685.340707] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  685.346064] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  685.353345] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  685.360609] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  685.367892] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  685.375154] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  685.382446] warn_alloc_show_mem: 1 callbacks suppressed
[  685.382457] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  685.382459] Mem-Info:
[  685.382490] active_anon:42936 inactive_anon:306 isolated_anon:0
[  685.382490]  active_file:13 inactive_file:13 isolated_file:0
[  685.382490]  unevictable:0 dirty:0 writeback:0 unstable:0
[  685.382490]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  685.382490]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  685.382490]  free:13785 free_pcp:492 free_cma:0
[  685.387833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  685.394674] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  685.397072] Call Trace:
[  685.429850] 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
[  685.439202]  dump_stack+0x244/0x39d
[  685.466765] lowmem_reserve[]: 0 2818 6321 6321
[  685.469351]  ? dump_stack_print_info.cold.1+0x20/0x20
[  685.495460] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  685.499092]  warn_alloc.cold.116+0xb7/0x1bd
[  685.503643] lowmem_reserve[]: 0 0 3503 3503
[  685.508841]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  685.535966] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  685.540280]  ? lock_downgrade+0x900/0x900
[  685.544578] lowmem_reserve[]: 0 0 0 0
[  685.549419]  ? trace_hardirqs_off+0xb8/0x310
[  685.578539] 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
[  685.582698]  ? trace_hardirqs_off+0xb8/0x310
[  685.586482] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  685.590886]  __alloc_pages_slowpath+0x2651/0x2de0
[  685.604392] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  685.608831]  ? warn_alloc+0x120/0x120
[  685.623962] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  685.628800]  ? print_usage_bug+0xc0/0xc0
[  685.643948] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  685.647736]  ? warn_alloc+0x120/0x120
[  685.656553] 380 total pagecache pages
[  685.660603]  ? warn_alloc+0x120/0x120
[  685.669161] 0 pages in swap cache
[  685.672950]  ? print_usage_bug+0xc0/0xc0
[  685.676740] Swap cache stats: add 0, delete 0, find 0/0
[  685.680558]  ? print_usage_bug+0xc0/0xc0
[  685.684004] Free swap  = 0kB
[  685.688054]  ? __lock_acquire+0x62f/0x4c20
[  685.693389] Total swap = 0kB
[  685.697447]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  685.700435] 1965979 pages RAM
[  685.704658]  ? should_fail+0x22d/0xd01
[  685.707649] 0 pages HighMem/MovableOnly
[  685.713178]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  685.716254] 342854 pages reserved
[  685.720135]  ? __lock_acquire+0x62f/0x4c20
[  685.724085] 0 pages cma reserved
[  685.729183]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  685.732696] aoe: skb alloc failure
[  685.736836]  ? __lock_acquire+0x62f/0x4c20
[  685.736852]  ? should_fail+0x22d/0xd01
[  685.740253] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  685.745285]  ? find_held_lock+0x36/0x1c0
[  685.745308]  ? mark_held_locks+0x130/0x130
[  685.748836] syz-fuzzer cpuset=/ mems_allowed=0
[  685.753064]  ? mark_held_locks+0x130/0x130
[  685.784173]  ? zap_class+0x640/0x640
[  685.787913]  ? zap_class+0x640/0x640
[  685.791630]  ? print_usage_bug+0xc0/0xc0
[  685.795690]  ? do_raw_spin_unlock+0xa7/0x330
[  685.800096]  ? zap_class+0x640/0x640
[  685.803812]  ? print_usage_bug+0xc0/0xc0
[  685.807871]  ? wq_watchdog_touch+0x9c/0xfe
[  685.812110]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  685.817648]  ? check_preemption_disabled+0x48/0x280
[  685.822686]  ? __lock_is_held+0xb5/0x140
[  685.826758]  __alloc_pages_nodemask+0xad8/0xea0
[  685.831444]  ? zap_class+0x640/0x640
[  685.835166]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  685.840197]  ? find_held_lock+0x36/0x1c0
[  685.844287]  ? ____cache_alloc_node+0x1c7/0x1e0
[  685.848955]  ? lock_downgrade+0x900/0x900
[  685.853109]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  685.858652]  cache_grow_begin+0xa5/0x8c0
[  685.862744]  ? do_raw_spin_unlock+0xa7/0x330
[  685.867178]  fallback_alloc+0x204/0x2e0
[  685.871169]  ____cache_alloc_node+0x1c7/0x1e0
[  685.875684]  kmem_cache_alloc_node+0xe3/0x730
[  685.880175]  ? ipv6_get_ifaddr+0x42e/0x620
[  685.884418]  __alloc_skb+0x119/0x770
[  685.888131]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  685.893412]  ? netdev_alloc_frag+0x1f0/0x1f0
[  685.897819]  ? lock_downgrade+0x900/0x900
[  685.901970]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  685.907502]  ? refcount_sub_and_test_checked+0x203/0x310
[  685.912956]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  685.918419]  ? addrconf_rs_timer+0x690/0x690
[  685.922855]  ndisc_alloc_skb+0x144/0x340
[  685.926923]  ndisc_send_rs+0x331/0x6e0
[  685.930823]  addrconf_rs_timer+0x314/0x690
[  685.935062]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  685.939308]  call_timer_fn+0x272/0x920
[  685.943203]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  685.947436]  ? process_timeout+0x40/0x40
[  685.951511]  ? __run_timers+0x7da/0xc70
[  685.955520]  ? _raw_spin_unlock_irq+0x27/0x80
[  685.960016]  ? _raw_spin_unlock_irq+0x27/0x80
[  685.964515]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  685.968755]  ? lockdep_hardirqs_on+0x296/0x5b0
[  685.973345]  ? trace_hardirqs_on+0xbd/0x310
[  685.977663]  ? kasan_check_read+0x11/0x20
[  685.981806]  ? __run_timers+0x7da/0xc70
[  685.985811]  ? trace_hardirqs_off_caller+0x310/0x310
[  685.990922]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  685.995175]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  685.999421]  __run_timers+0x7e5/0xc70
[  686.003231]  ? timer_fixup_init+0x70/0x70
[  686.007376]  ? _raw_spin_unlock_irq+0x27/0x80
[  686.011870]  ? _raw_spin_unlock_irq+0x27/0x80
[  686.016364]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  686.020946]  ? trace_hardirqs_on+0xbd/0x310
[  686.025266]  ? kasan_check_read+0x11/0x20
[  686.029422]  ? finish_task_switch+0x1f4/0x910
[  686.033921]  ? trace_hardirqs_off_caller+0x310/0x310
[  686.039027]  ? compat_start_thread+0x80/0x80
[  686.043457]  ? pvclock_read_flags+0x160/0x160
[  686.047967]  ? __switch_to_asm+0x34/0x70
[  686.052063]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  686.057600]  ? check_preemption_disabled+0x48/0x280
[  686.062627]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  686.068163]  ? rcu_pm_notify+0xc0/0xc0
[  686.072058]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  686.077602]  ? check_preemption_disabled+0x48/0x280
[  686.082640]  run_timer_softirq+0x52/0xb0
[  686.086700]  ? rcu_read_lock_sched_held+0x14f/0x180
[  686.091891]  __do_softirq+0x308/0xb7e
[  686.095712]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  686.100491]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  686.105596]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  686.111052]  ? trace_hardirqs_on+0x310/0x310
[  686.115470]  ? schedule+0x108/0x460
[  686.119107]  ? trace_hardirqs_off+0xb8/0x310
[  686.123523]  ? smpboot_thread_fn+0x68b/0xa00
[  686.127950]  ? trace_hardirqs_on+0x310/0x310
[  686.132357]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  686.137892]  ? check_preemption_disabled+0x48/0x280
[  686.142911]  ? takeover_tasklets+0xa90/0xa90
[  686.147322]  run_ksoftirqd+0x5e/0x100
[  686.151123]  smpboot_thread_fn+0x68b/0xa00
[  686.155362]  ? sort_range+0x30/0x30
[  686.158985]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  686.164105]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  686.169642]  ? __kthread_parkme+0xfb/0x1a0
[  686.173880]  ? sort_range+0x30/0x30
[  686.177509]  kthread+0x35a/0x440
[  686.180876]  ? kthread_stop+0x900/0x900
[  686.184868]  ret_from_fork+0x3a/0x50
[  686.188597] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  686.188693] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  686.195603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  686.195611] Call Trace:
[  686.202181] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  686.211428]  <IRQ>
[  686.214009] ksoftirqd/0 cpuset=/ mems_allowed=0
[  686.224310]  dump_stack+0x244/0x39d
[  686.234728]  ? dump_stack_print_info.cold.1+0x20/0x20
[  686.239954]  warn_alloc.cold.116+0xb7/0x1bd
[  686.244285]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  686.249134]  ? lock_downgrade+0x900/0x900
[  686.253305]  ? trace_hardirqs_off+0xb8/0x310
[  686.257720]  ? trace_hardirqs_off+0xb8/0x310
[  686.262142]  __alloc_pages_slowpath+0x2651/0x2de0
[  686.267010]  ? warn_alloc+0x120/0x120
[  686.270820]  ? warn_alloc+0x120/0x120
[  686.274629]  ? warn_alloc+0x120/0x120
[  686.278447]  ? print_usage_bug+0xc0/0xc0
[  686.282529]  ? print_usage_bug+0xc0/0xc0
[  686.286588]  ? ktime_get+0x2c1/0x400
[  686.290308]  ? check_preemption_disabled+0x48/0x280
[  686.295340]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  686.299871]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  686.305403]  ? should_fail+0x22d/0xd01
[  686.309296]  ? kasan_check_read+0x11/0x20
[  686.313479]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  686.318577]  ? __lock_acquire+0x62f/0x4c20
[  686.322812]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  686.327912]  ? should_fail+0x22d/0xd01
[  686.331803]  ? print_usage_bug+0xc0/0xc0
[  686.335879]  ? mark_held_locks+0x130/0x130
[  686.340116]  ? mark_held_locks+0x130/0x130
[  686.344346]  ? check_preemption_disabled+0x48/0x280
[  686.349366]  ? zap_class+0x640/0x640
[  686.353094]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  686.357850]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  686.363385]  ? check_preemption_disabled+0x48/0x280
[  686.368406]  ? __lock_is_held+0xb5/0x140
[  686.372467]  __alloc_pages_nodemask+0xad8/0xea0
[  686.377149]  ? zap_class+0x640/0x640
[  686.380878]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  686.385905]  ? find_held_lock+0x36/0x1c0
[  686.389980]  ? ____cache_alloc_node+0x1c7/0x1e0
[  686.394648]  ? lock_downgrade+0x900/0x900
[  686.398801]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  686.404341]  cache_grow_begin+0xa5/0x8c0
[  686.408405]  ? do_raw_spin_unlock+0xa7/0x330
[  686.412824]  fallback_alloc+0x204/0x2e0
[  686.416810]  ____cache_alloc_node+0x1c7/0x1e0
[  686.421319]  kmem_cache_alloc_node+0xe3/0x730
[  686.425816]  ? lockdep_hardirqs_on+0x296/0x5b0
[  686.430407]  __alloc_skb+0x119/0x770
[  686.434133]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  686.439501]  ? netdev_alloc_frag+0x1f0/0x1f0
[  686.443917]  ? vprintk_default+0x28/0x30
[  686.447990]  ? vprintk_func+0x85/0x181
[  686.451890]  ? printk+0xa7/0xcf
[  686.455169]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  686.459950]  new_skb+0x26/0x1c0
[  686.463231]  aoecmd_cfg+0x279/0x7f0
[  686.466866]  ? find_held_lock+0x36/0x1c0
[  686.470932]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  686.475258]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  686.480817]  ? __lock_is_held+0xb5/0x140
[  686.484889]  discover_timer+0x50/0x60
[  686.488686]  call_timer_fn+0x272/0x920
[  686.492570]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  686.497408]  ? process_timeout+0x40/0x40
[  686.501479]  ? mark_held_locks+0xc7/0x130
[  686.505632]  ? _raw_spin_unlock_irq+0x27/0x80
[  686.510127]  ? _raw_spin_unlock_irq+0x27/0x80
[  686.514616]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  686.519474]  ? lockdep_hardirqs_on+0x296/0x5b0
[  686.524059]  ? trace_hardirqs_on+0xbd/0x310
[  686.528378]  ? kasan_check_read+0x11/0x20
[  686.532521]  ? __run_timers+0x7da/0xc70
[  686.536496]  ? trace_hardirqs_off_caller+0x310/0x310
[  686.541609]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  686.546446]  __run_timers+0x7e5/0xc70
[  686.550275]  ? timer_fixup_init+0x70/0x70
[  686.554647]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  686.559663]  ? zap_class+0x640/0x640
[  686.563378]  ? print_usage_bug+0xc0/0xc0
[  686.567439]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  686.572655]  ? find_held_lock+0x36/0x1c0
[  686.576718]  ? zap_class+0x640/0x640
[  686.580472]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  686.586026]  ? check_preemption_disabled+0x48/0x280
[  686.591068]  ? __lock_is_held+0xb5/0x140
[  686.595134]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  686.600673]  ? check_preemption_disabled+0x48/0x280
[  686.605721]  run_timer_softirq+0x52/0xb0
[  686.609788]  ? rcu_read_lock_sched_held+0x14f/0x180
[  686.614823]  __do_softirq+0x308/0xb7e
[  686.618629]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  686.623119]  ? lock_downgrade+0x900/0x900
[  686.627291]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  686.632407]  ? pvclock_read_flags+0x160/0x160
[  686.636903]  ? lapic_next_event+0x5a/0x90
[  686.641057]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  686.646612]  ? kvm_clock_read+0x18/0x30
[  686.650584]  ? kvm_sched_clock_read+0x9/0x20
[  686.654996]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  686.660545]  ? check_preemption_disabled+0x48/0x280
[  686.665574]  irq_exit+0x17f/0x1c0
[  686.669028]  smp_apic_timer_interrupt+0x1cb/0x760
[  686.673870]  ? smp_reschedule_interrupt+0x109/0x650
[  686.678887]  ? smp_call_function_single_interrupt+0x650/0x650
[  686.684773]  ? interrupt_entry+0xb5/0xc0
[  686.689337]  ? trace_hardirqs_off_caller+0xbb/0x310
[  686.694349]  ? trace_hardirqs_off_caller+0xbb/0x310
[  686.699378]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  686.704222]  ? trace_hardirqs_on_caller+0x310/0x310
[  686.709255]  ? trace_hardirqs_on_caller+0x310/0x310
[  686.714280]  ? task_prio+0x50/0x50
[  686.717833]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  686.723369]  ? check_preemption_disabled+0x48/0x280
[  686.728392]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  686.733242]  apic_timer_interrupt+0xf/0x20
[  686.737472]  </IRQ>
[  686.739707] RIP: 0010:dump_stack+0x358/0x39d
[  686.744130] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  686.763024] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  686.770745] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  686.778018] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  686.785298] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  686.792565] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  686.799828] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  686.807129]  ? dump_stack+0x34f/0x39d
[  686.810942]  ? dump_stack_print_info.cold.1+0x20/0x20
[  686.816135]  ? mark_held_locks+0x130/0x130
[  686.820371]  ? mark_held_locks+0x130/0x130
[  686.824609]  dump_header+0x27b/0xf72
[  686.828336]  ? pagefault_out_of_memory+0x197/0x197
[  686.833282]  ? __lock_acquire+0x62f/0x4c20
[  686.837530]  ? percpu_ref_get_many+0x240/0x240
[  686.842134]  ? print_usage_bug+0xc0/0xc0
[  686.846200]  ? zap_class+0x640/0x640
[  686.849918]  ? print_usage_bug+0xc0/0xc0
[  686.853976]  ? print_usage_bug+0xc0/0xc0
[  686.858039]  ? zap_class+0x640/0x640
[  686.861762]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  686.867307]  ? find_held_lock+0x36/0x1c0
[  686.871394]  ? mark_held_locks+0xc7/0x130
[  686.875552]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  686.880654]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  686.885763]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  686.890363]  ? trace_hardirqs_on+0xbd/0x310
[  686.894696]  ? kasan_check_read+0x11/0x20
[  686.898844]  ? ___ratelimit+0x3b4/0x672
[  686.902817]  ? trace_hardirqs_off_caller+0x310/0x310
[  686.907916]  ? trace_hardirqs_on+0x310/0x310
[  686.912323]  ? lock_downgrade+0x900/0x900
[  686.916474]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  686.921575]  ? ___ratelimit+0x3b9/0x672
[  686.925553]  ? idr_get_free+0xf70/0xf70
[  686.929546]  ? find_held_lock+0x36/0x1c0
[  686.933629]  oom_kill_process.cold.27+0x10/0x903
[  686.938380]  ? zap_class+0x640/0x640
[  686.942094]  ? check_preemption_disabled+0x48/0x280
[  686.947129]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  686.952072]  ? kasan_check_read+0x11/0x20
[  686.956218]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  686.961495]  ? oom_evaluate_task+0x540/0x540
[  686.965905]  ? find_held_lock+0x36/0x1c0
[  686.969980]  ? out_of_memory+0x974/0x1430
[  686.974131]  ? lock_downgrade+0x900/0x900
[  686.978292]  ? check_preemption_disabled+0x48/0x280
[  686.983312]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  686.988255]  ? kasan_check_read+0x11/0x20
[  686.992406]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  686.997679]  ? rcu_softirq_qs+0x20/0x20
[  687.001711]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  687.007244]  ? oom_evaluate_task+0x302/0x540
[  687.011662]  out_of_memory+0xa84/0x1430
[  687.015643]  ? oom_killer_disable+0x3a0/0x3a0
[  687.020139]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  687.025089]  ? __ww_mutex_check_waiters+0x160/0x160
[  687.030130]  __alloc_pages_slowpath+0x232c/0x2de0
[  687.035002]  ? warn_alloc+0x120/0x120
[  687.038816]  ? mark_held_locks+0x130/0x130
[  687.043059]  ? find_get_entry+0xaae/0x1120
[  687.047304]  ? filemap_map_pages+0x1a20/0x1a20
[  687.051893]  ? zap_class+0x640/0x640
[  687.055613]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  687.061165]  ? check_preemption_disabled+0x48/0x280
[  687.066195]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  687.071733]  ? should_fail+0x22d/0xd01
[  687.075646]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  687.080755]  ? zap_class+0x640/0x640
[  687.084519]  ? __lock_is_held+0xb5/0x140
[  687.088606]  ? mark_held_locks+0x130/0x130
[  687.092841]  ? lock_release+0xa00/0xa00
[  687.096812]  ? perf_trace_sched_process_exec+0x860/0x860
[  687.102261]  ? xa_load+0x2ba/0x460
[  687.105807]  ? lock_downgrade+0x900/0x900
[  687.109963]  ? __might_sleep+0x95/0x190
[  687.113963]  __alloc_pages_nodemask+0xad8/0xea0
[  687.118645]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  687.123663]  ? __page_cache_alloc+0x191/0x5c0
[  687.128155]  ? xa_load+0x2e1/0x460
[  687.131698]  ? xa_clear_mark+0x40/0x40
[  687.135610]  ? zap_class+0x640/0x640
[  687.139330]  ? zap_class+0x640/0x640
[  687.143038]  ? zap_class+0x640/0x640
[  687.146760]  ? __do_page_cache_readahead+0x663/0x810
[  687.151869]  ? find_held_lock+0x36/0x1c0
[  687.155938]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  687.161511]  alloc_pages_current+0x173/0x350
[  687.165929]  __page_cache_alloc+0x38c/0x5c0
[  687.170253]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  687.175187]  ? kasan_check_read+0x11/0x20
[  687.179352]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  687.184627]  ? generic_perform_write+0x6a0/0x6a0
[  687.189382]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  687.194918]  ? check_preemption_disabled+0x48/0x280
[  687.199940]  filemap_fault+0x1595/0x25f0
[  687.204011]  ? __lock_page_or_retry+0xa00/0xa00
[  687.208680]  ? mark_held_locks+0x130/0x130
[  687.212924]  ? filemap_map_pages+0xd6b/0x1a20
[  687.217422]  ? lock_downgrade+0x900/0x900
[  687.221571]  ? check_preemption_disabled+0x48/0x280
[  687.226594]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  687.231519]  ? kasan_check_read+0x11/0x20
[  687.235661]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  687.240936]  ? rcu_softirq_qs+0x20/0x20
[  687.244926]  ? filemap_map_pages+0xd92/0x1a20
[  687.249443]  ? print_usage_bug+0xc0/0xc0
[  687.253538]  ? find_get_entries_tag+0x1400/0x1400
[  687.258390]  ? __kasan_slab_free+0x102/0x150
[  687.262794]  ? kasan_slab_free+0xe/0x10
[  687.266771]  ? kmem_cache_free+0x83/0x290
[  687.270923]  ? __sigqueue_free.part.29+0x74/0x90
[  687.275696]  ? lock_acquire+0x1ed/0x520
[  687.279668]  ? ext4_filemap_fault+0x7a/0xad
[  687.283995]  ? lock_release+0xa00/0xa00
[  687.287972]  ? perf_trace_sched_process_exec+0x860/0x860
[  687.293421]  ? print_usage_bug+0xc0/0xc0
[  687.297501]  ? print_usage_bug+0xc0/0xc0
[  687.301571]  ? down_read+0x8d/0x120
[  687.305194]  ? ext4_filemap_fault+0x7a/0xad
[  687.309515]  ? __down_interruptible+0x700/0x700
[  687.314192]  ext4_filemap_fault+0x82/0xad
[  687.318343]  __do_fault+0x100/0x6b0
[  687.321973]  ? pmd_devmap_trans_unstable+0x220/0x220
[  687.327077]  ? mark_held_locks+0x130/0x130
[  687.331310]  ? mark_held_locks+0x130/0x130
[  687.335547]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  687.341090]  ? rcu_pm_notify+0xc0/0xc0
[  687.344985]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  687.350528]  __handle_mm_fault+0x3ea0/0x5be0
[  687.354951]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  687.359796]  ? _raw_spin_unlock_irq+0x27/0x80
[  687.364308]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  687.368895]  ? trace_hardirqs_on+0xbd/0x310
[  687.373219]  ? kasan_check_read+0x11/0x20
[  687.377363]  ? __set_current_blocked+0xdf/0x120
[  687.382033]  ? trace_hardirqs_off_caller+0x310/0x310
[  687.387152]  ? zap_class+0x640/0x640
[  687.390865]  ? zap_class+0x640/0x640
[  687.394586]  ? find_held_lock+0x36/0x1c0
[  687.398671]  ? handle_mm_fault+0x42a/0xc70
[  687.402911]  ? lock_downgrade+0x900/0x900
[  687.407063]  ? check_preemption_disabled+0x48/0x280
[  687.412094]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  687.417026]  ? kasan_check_read+0x11/0x20
[  687.421174]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  687.426446]  ? rcu_softirq_qs+0x20/0x20
[  687.430414]  ? trace_hardirqs_off_caller+0x310/0x310
[  687.435531]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  687.441071]  ? check_preemption_disabled+0x48/0x280
[  687.446129]  handle_mm_fault+0x54f/0xc70
[  687.450196]  ? __handle_mm_fault+0x5be0/0x5be0
[  687.454806]  ? find_vma+0x34/0x190
[  687.458365]  __do_page_fault+0x5e8/0xe60
[  687.462429]  ? exit_to_usermode_loop+0x1f4/0x380
[  687.467192]  do_page_fault+0xf2/0x7e0
[  687.470999]  ? vmalloc_sync_all+0x30/0x30
[  687.475156]  ? error_entry+0x70/0xd0
[  687.478870]  ? trace_hardirqs_off_caller+0xbb/0x310
[  687.483902]  ? trace_hardirqs_on_caller+0xc0/0x310
[  687.488897]  ? syscall_return_slowpath+0x5e0/0x5e0
[  687.493844]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  687.498703]  ? trace_hardirqs_on_caller+0x310/0x310
[  687.503742]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  687.509207]  ? prepare_exit_to_usermode+0x291/0x3b0
[  687.514220]  ? page_fault+0x8/0x30
[  687.517771]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  687.522635]  ? page_fault+0x8/0x30
[  687.526192]  page_fault+0x1e/0x30
[  687.529651] RIP: 0033:0x45db60
[  687.532868] Code: Bad RIP value.
[  687.536227] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  687.541587] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  687.548852] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  687.556116] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  687.563380] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  687.570658] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  687.577978] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  687.577983] warn_alloc_show_mem: 1 callbacks suppressed
[  687.577990] Mem-Info:
[  687.584823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  687.590191] active_anon:42936 inactive_anon:306 isolated_anon:0
[  687.590191]  active_file:13 inactive_file:13 isolated_file:0
[  687.590191]  unevictable:0 dirty:0 writeback:0 unstable:0
[  687.590191]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  687.590191]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  687.590191]  free:13785 free_pcp:492 free_cma:0
[  687.592560] Call Trace:
[  687.601960] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  687.634721]  dump_stack+0x244/0x39d
[  687.637299] 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
[  687.664878]  ? dump_stack_print_info.cold.1+0x20/0x20
[  687.668478] lowmem_reserve[]: 0 2818 6321 6321
[  687.694593]  warn_alloc.cold.116+0xb7/0x1bd
[  687.699758] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  687.704338]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  687.708632] lowmem_reserve[]: 0 0 3503 3503
[  687.735786]  ? lock_downgrade+0x900/0x900
[  687.740598] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  687.744928]  ? trace_hardirqs_off+0xb8/0x310
[  687.749046] lowmem_reserve[]: 0 0 0 0
[  687.778192]  ? trace_hardirqs_off+0xb8/0x310
[  687.782585] 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
[  687.786383]  __alloc_pages_slowpath+0x2651/0x2de0
[  687.790765] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  687.804307]  ? warn_alloc+0x120/0x120
[  687.809107] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  687.824268]  ? print_usage_bug+0xc0/0xc0
[  687.828056] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  687.843210]  ? warn_alloc+0x120/0x120
[  687.847252] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  687.856076]  ? warn_alloc+0x120/0x120
[  687.859853] 380 total pagecache pages
[  687.868417]  ? print_usage_bug+0xc0/0xc0
[  687.872195] 0 pages in swap cache
[  687.875983]  ? print_usage_bug+0xc0/0xc0
[  687.880018] Swap cache stats: add 0, delete 0, find 0/0
[  687.883456]  ? __lock_acquire+0x62f/0x4c20
[  687.887504] Free swap  = 0kB
[  687.892858]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  687.897060] Total swap = 0kB
[  687.900084]  ? should_fail+0x22d/0xd01
[  687.905588] 1965979 pages RAM
[  687.908598]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  687.912459] 0 pages HighMem/MovableOnly
[  687.915552]  ? __lock_acquire+0x62f/0x4c20
[  687.920629] 342854 pages reserved
[  687.924594]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  687.928804] 0 pages cma reserved
[  687.932248]  ? __lock_acquire+0x62f/0x4c20
[  687.937407] aoe: skb alloc failure
[  687.940701]  ? should_fail+0x22d/0xd01
[  687.940715]  ? find_held_lock+0x36/0x1c0
[  687.940736]  ? mark_held_locks+0x130/0x130
[  687.944983] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  687.948485]  ? mark_held_locks+0x130/0x130
[  687.952345] syz-fuzzer cpuset=/ mems_allowed=0
[  687.956395]  ? zap_class+0x640/0x640
[  687.983324]  ? mark_held_locks+0xc7/0x130
[  687.987497]  ? do_raw_spin_unlock+0xa7/0x330
[  687.991923]  ? zap_class+0x640/0x640
[  687.995653]  ? print_usage_bug+0xc0/0xc0
[  687.999718]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.005264]  ? check_preemption_disabled+0x48/0x280
[  688.010292]  ? __lock_is_held+0xb5/0x140
[  688.014363]  __alloc_pages_nodemask+0xad8/0xea0
[  688.019032]  ? zap_class+0x640/0x640
[  688.022781]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  688.027826]  ? find_held_lock+0x36/0x1c0
[  688.031901]  ? ____cache_alloc_node+0x1c7/0x1e0
[  688.036569]  ? lock_downgrade+0x900/0x900
[  688.040721]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.046269]  cache_grow_begin+0xa5/0x8c0
[  688.050334]  ? do_raw_spin_unlock+0xa7/0x330
[  688.054755]  fallback_alloc+0x204/0x2e0
[  688.058740]  ____cache_alloc_node+0x1c7/0x1e0
[  688.063252]  kmem_cache_alloc_node+0xe3/0x730
[  688.067789]  ? ipv6_get_ifaddr+0x42e/0x620
[  688.072050]  __alloc_skb+0x119/0x770
[  688.075769]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  688.081054]  ? netdev_alloc_frag+0x1f0/0x1f0
[  688.085480]  ? lock_downgrade+0x900/0x900
[  688.089637]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.095174]  ? refcount_sub_and_test_checked+0x203/0x310
[  688.100630]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  688.106080]  ? addrconf_rs_timer+0x690/0x690
[  688.110497]  ndisc_alloc_skb+0x144/0x340
[  688.114561]  ndisc_send_rs+0x331/0x6e0
[  688.118450]  addrconf_rs_timer+0x314/0x690
[  688.122710]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  688.126954]  call_timer_fn+0x272/0x920
[  688.130855]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  688.135092]  ? process_timeout+0x40/0x40
[  688.139164]  ? __run_timers+0x7da/0xc70
[  688.143139]  ? _raw_spin_unlock_irq+0x27/0x80
[  688.147639]  ? _raw_spin_unlock_irq+0x27/0x80
[  688.152135]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  688.156368]  ? lockdep_hardirqs_on+0x296/0x5b0
[  688.160952]  ? trace_hardirqs_on+0xbd/0x310
[  688.165271]  ? kasan_check_read+0x11/0x20
[  688.169417]  ? __run_timers+0x7da/0xc70
[  688.173389]  ? trace_hardirqs_off_caller+0x310/0x310
[  688.178533]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  688.182799]  __run_timers+0x7e5/0xc70
[  688.186605]  ? timer_fixup_init+0x70/0x70
[  688.190757]  ? _raw_spin_unlock_irq+0x27/0x80
[  688.195255]  ? _raw_spin_unlock_irq+0x27/0x80
[  688.199756]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  688.204345]  ? trace_hardirqs_on+0xbd/0x310
[  688.208663]  ? kasan_check_read+0x11/0x20
[  688.212811]  ? finish_task_switch+0x1f4/0x910
[  688.217310]  ? trace_hardirqs_off_caller+0x310/0x310
[  688.222410]  ? compat_start_thread+0x80/0x80
[  688.226839]  ? pvclock_read_flags+0x160/0x160
[  688.231328]  ? __switch_to_asm+0x34/0x70
[  688.235390]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.240939]  ? check_preemption_disabled+0x48/0x280
[  688.245962]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  688.251504]  ? rcu_pm_notify+0xc0/0xc0
[  688.255391]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.260944]  ? check_preemption_disabled+0x48/0x280
[  688.265965]  run_timer_softirq+0x52/0xb0
[  688.270054]  ? rcu_read_lock_sched_held+0x14f/0x180
[  688.275076]  __do_softirq+0x308/0xb7e
[  688.278885]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  688.283645]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  688.288746]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  688.294207]  ? trace_hardirqs_on+0x310/0x310
[  688.298622]  ? schedule+0x108/0x460
[  688.302256]  ? trace_hardirqs_off+0xb8/0x310
[  688.306673]  ? smpboot_thread_fn+0x68b/0xa00
[  688.311082]  ? trace_hardirqs_on+0x310/0x310
[  688.315495]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  688.321035]  ? check_preemption_disabled+0x48/0x280
[  688.326062]  ? takeover_tasklets+0xa90/0xa90
[  688.330503]  run_ksoftirqd+0x5e/0x100
[  688.334303]  smpboot_thread_fn+0x68b/0xa00
[  688.338543]  ? sort_range+0x30/0x30
[  688.342167]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  688.347283]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  688.352824]  ? __kthread_parkme+0xfb/0x1a0
[  688.357066]  ? sort_range+0x30/0x30
[  688.360708]  kthread+0x35a/0x440
[  688.364092]  ? kthread_stop+0x900/0x900
[  688.368068]  ret_from_fork+0x3a/0x50
[  688.371811] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  688.371872] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  688.378828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  688.378833] Call Trace:
[  688.378839]  <IRQ>
[  688.378856]  dump_stack+0x244/0x39d
[  688.378875]  ? dump_stack_print_info.cold.1+0x20/0x20
[  688.385399] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  688.394705]  warn_alloc.cold.116+0xb7/0x1bd
[  688.397260] ksoftirqd/0 cpuset=/ mems_allowed=0
[  688.399411]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  688.432283]  ? lock_downgrade+0x900/0x900
[  688.436440]  ? trace_hardirqs_off+0xb8/0x310
[  688.440852]  ? trace_hardirqs_off+0xb8/0x310
[  688.445269]  __alloc_pages_slowpath+0x2651/0x2de0
[  688.450144]  ? warn_alloc+0x120/0x120
[  688.453949]  ? warn_alloc+0x120/0x120
[  688.457761]  ? __lock_acquire+0x62f/0x4c20
[  688.461999]  ? warn_alloc+0x120/0x120
[  688.465802]  ? print_usage_bug+0xc0/0xc0
[  688.469869]  ? print_usage_bug+0xc0/0xc0
[  688.473936]  ? mark_held_locks+0x130/0x130
[  688.478175]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  688.483726]  ? should_fail+0x22d/0xd01
[  688.487632]  ? zap_class+0x640/0x640
[  688.491359]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  688.496464]  ? __lock_acquire+0x62f/0x4c20
[  688.500707]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  688.505807]  ? should_fail+0x22d/0xd01
[  688.509743]  ? mark_held_locks+0x130/0x130
[  688.513990]  ? mark_held_locks+0x130/0x130
[  688.518222]  ? lock_downgrade+0x900/0x900
[  688.522372]  ? zap_class+0x640/0x640
[  688.526084]  ? zap_class+0x640/0x640
[  688.529804]  ? zap_class+0x640/0x640
[  688.533533]  ? do_raw_spin_unlock+0xa7/0x330
[  688.537941]  ? trace_hardirqs_on+0x310/0x310
[  688.542347]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.547895]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.553429]  ? check_preemption_disabled+0x48/0x280
[  688.558450]  ? __lock_is_held+0xb5/0x140
[  688.562519]  __alloc_pages_nodemask+0xad8/0xea0
[  688.567195]  ? zap_class+0x640/0x640
[  688.570914]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  688.575942]  ? find_held_lock+0x36/0x1c0
[  688.580011]  ? ____cache_alloc_node+0x1c7/0x1e0
[  688.584682]  ? lock_downgrade+0x900/0x900
[  688.588834]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.594374]  cache_grow_begin+0xa5/0x8c0
[  688.598437]  ? do_raw_spin_unlock+0xa7/0x330
[  688.602864]  fallback_alloc+0x204/0x2e0
[  688.606848]  ____cache_alloc_node+0x1c7/0x1e0
[  688.611366]  kmem_cache_alloc_node+0xe3/0x730
[  688.615877]  ? lockdep_hardirqs_on+0x296/0x5b0
[  688.620467]  __alloc_skb+0x119/0x770
[  688.624182]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  688.629551]  ? netdev_alloc_frag+0x1f0/0x1f0
[  688.633964]  ? vprintk_default+0x28/0x30
[  688.638025]  ? vprintk_func+0x85/0x181
[  688.641914]  ? printk+0xa7/0xcf
[  688.645205]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  688.649977]  new_skb+0x26/0x1c0
[  688.653255]  aoecmd_cfg+0x279/0x7f0
[  688.656905]  ? find_held_lock+0x36/0x1c0
[  688.660969]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  688.665301]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.670851]  ? __lock_is_held+0xb5/0x140
[  688.674923]  discover_timer+0x50/0x60
[  688.678724]  call_timer_fn+0x272/0x920
[  688.682621]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  688.687970]  ? process_timeout+0x40/0x40
[  688.692044]  ? mark_held_locks+0xc7/0x130
[  688.696223]  ? _raw_spin_unlock_irq+0x27/0x80
[  688.700716]  ? _raw_spin_unlock_irq+0x27/0x80
[  688.705216]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  688.710058]  ? lockdep_hardirqs_on+0x296/0x5b0
[  688.714646]  ? trace_hardirqs_on+0xbd/0x310
[  688.718967]  ? kasan_check_read+0x11/0x20
[  688.723118]  ? __run_timers+0x7da/0xc70
[  688.727094]  ? trace_hardirqs_off_caller+0x310/0x310
[  688.732209]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  688.737048]  __run_timers+0x7e5/0xc70
[  688.740862]  ? timer_fixup_init+0x70/0x70
[  688.745015]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  688.750031]  ? zap_class+0x640/0x640
[  688.753747]  ? print_usage_bug+0xc0/0xc0
[  688.757818]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  688.763020]  ? find_held_lock+0x36/0x1c0
[  688.767089]  ? zap_class+0x640/0x640
[  688.770811]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.776349]  ? check_preemption_disabled+0x48/0x280
[  688.781370]  ? __lock_is_held+0xb5/0x140
[  688.785426]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.790966]  ? check_preemption_disabled+0x48/0x280
[  688.795985]  run_timer_softirq+0x52/0xb0
[  688.800045]  ? rcu_read_lock_sched_held+0x14f/0x180
[  688.805059]  __do_softirq+0x308/0xb7e
[  688.808864]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  688.813361]  ? lock_downgrade+0x900/0x900
[  688.817511]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  688.822623]  ? pvclock_read_flags+0x160/0x160
[  688.827118]  ? lapic_next_event+0x5a/0x90
[  688.831267]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  688.836826]  ? kvm_clock_read+0x18/0x30
[  688.840812]  ? kvm_sched_clock_read+0x9/0x20
[  688.845220]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  688.850764]  ? check_preemption_disabled+0x48/0x280
[  688.855804]  irq_exit+0x17f/0x1c0
[  688.859261]  smp_apic_timer_interrupt+0x1cb/0x760
[  688.864106]  ? smp_reschedule_interrupt+0x109/0x650
[  688.869123]  ? smp_call_function_single_interrupt+0x650/0x650
[  688.875006]  ? interrupt_entry+0xb5/0xc0
[  688.879071]  ? trace_hardirqs_off_caller+0xbb/0x310
[  688.884085]  ? trace_hardirqs_off_caller+0xbb/0x310
[  688.889100]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  688.893946]  ? trace_hardirqs_on_caller+0x310/0x310
[  688.898959]  ? trace_hardirqs_on_caller+0x310/0x310
[  688.903973]  ? task_prio+0x50/0x50
[  688.907517]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  688.913059]  ? check_preemption_disabled+0x48/0x280
[  688.918099]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  688.922948]  apic_timer_interrupt+0xf/0x20
[  688.927177]  </IRQ>
[  688.929413] RIP: 0010:dump_stack+0x358/0x39d
[  688.933837] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  688.953607] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  688.961316] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  688.968581] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  688.975844] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  688.983109] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  688.990372] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  688.997659]  ? dump_stack+0x34f/0x39d
[  689.001472]  ? dump_stack_print_info.cold.1+0x20/0x20
[  689.006665]  ? mark_held_locks+0x130/0x130
[  689.010899]  ? mark_held_locks+0x130/0x130
[  689.015145]  dump_header+0x27b/0xf72
[  689.018902]  ? pagefault_out_of_memory+0x197/0x197
[  689.023851]  ? __lock_acquire+0x62f/0x4c20
[  689.028087]  ? percpu_ref_get_many+0x240/0x240
[  689.032677]  ? print_usage_bug+0xc0/0xc0
[  689.036795]  ? zap_class+0x640/0x640
[  689.040527]  ? print_usage_bug+0xc0/0xc0
[  689.044583]  ? print_usage_bug+0xc0/0xc0
[  689.048643]  ? zap_class+0x640/0x640
[  689.052365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  689.057909]  ? find_held_lock+0x36/0x1c0
[  689.061984]  ? mark_held_locks+0xc7/0x130
[  689.066137]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  689.071241]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  689.076352]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  689.080948]  ? trace_hardirqs_on+0xbd/0x310
[  689.085301]  ? kasan_check_read+0x11/0x20
[  689.089460]  ? ___ratelimit+0x3b4/0x672
[  689.093436]  ? trace_hardirqs_off_caller+0x310/0x310
[  689.098559]  ? trace_hardirqs_on+0x310/0x310
[  689.102994]  ? lock_downgrade+0x900/0x900
[  689.107148]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  689.112255]  ? ___ratelimit+0x3b9/0x672
[  689.116238]  ? idr_get_free+0xf70/0xf70
[  689.120216]  ? find_held_lock+0x36/0x1c0
[  689.124288]  oom_kill_process.cold.27+0x10/0x903
[  689.129059]  ? zap_class+0x640/0x640
[  689.132784]  ? check_preemption_disabled+0x48/0x280
[  689.137821]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  689.142762]  ? kasan_check_read+0x11/0x20
[  689.146917]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  689.152195]  ? oom_evaluate_task+0x540/0x540
[  689.156607]  ? find_held_lock+0x36/0x1c0
[  689.160678]  ? out_of_memory+0x974/0x1430
[  689.164837]  ? lock_downgrade+0x900/0x900
[  689.168987]  ? check_preemption_disabled+0x48/0x280
[  689.174007]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  689.178935]  ? kasan_check_read+0x11/0x20
[  689.183097]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  689.188372]  ? rcu_softirq_qs+0x20/0x20
[  689.192352]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  689.197901]  ? oom_evaluate_task+0x302/0x540
[  689.202312]  out_of_memory+0xa84/0x1430
[  689.206298]  ? oom_killer_disable+0x3a0/0x3a0
[  689.210796]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  689.215747]  ? __ww_mutex_check_waiters+0x160/0x160
[  689.220793]  __alloc_pages_slowpath+0x232c/0x2de0
[  689.225663]  ? warn_alloc+0x120/0x120
[  689.229463]  ? mark_held_locks+0x130/0x130
[  689.233699]  ? find_get_entry+0xaae/0x1120
[  689.237971]  ? filemap_map_pages+0x1a20/0x1a20
[  689.242583]  ? zap_class+0x640/0x640
[  689.246305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  689.251840]  ? check_preemption_disabled+0x48/0x280
[  689.256853]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  689.262391]  ? should_fail+0x22d/0xd01
[  689.266300]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  689.271406]  ? zap_class+0x640/0x640
[  689.275147]  ? __lock_is_held+0xb5/0x140
[  689.279216]  ? mark_held_locks+0x130/0x130
[  689.283454]  ? lock_release+0xa00/0xa00
[  689.287462]  ? perf_trace_sched_process_exec+0x860/0x860
[  689.292923]  ? xa_load+0x2ba/0x460
[  689.296463]  ? lock_downgrade+0x900/0x900
[  689.300633]  ? __might_sleep+0x95/0x190
[  689.304610]  __alloc_pages_nodemask+0xad8/0xea0
[  689.309294]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  689.314310]  ? __page_cache_alloc+0x191/0x5c0
[  689.318818]  ? xa_load+0x2e1/0x460
[  689.322358]  ? xa_clear_mark+0x40/0x40
[  689.326245]  ? zap_class+0x640/0x640
[  689.329987]  ? zap_class+0x640/0x640
[  689.333700]  ? zap_class+0x640/0x640
[  689.337418]  ? __do_page_cache_readahead+0x663/0x810
[  689.342527]  ? find_held_lock+0x36/0x1c0
[  689.346592]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  689.352134]  alloc_pages_current+0x173/0x350
[  689.356567]  __page_cache_alloc+0x38c/0x5c0
[  689.360889]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  689.365820]  ? kasan_check_read+0x11/0x20
[  689.369964]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  689.375245]  ? generic_perform_write+0x6a0/0x6a0
[  689.380008]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  689.385546]  ? check_preemption_disabled+0x48/0x280
[  689.390833]  filemap_fault+0x1595/0x25f0
[  689.394907]  ? __lock_page_or_retry+0xa00/0xa00
[  689.399582]  ? mark_held_locks+0x130/0x130
[  689.403826]  ? filemap_map_pages+0xd6b/0x1a20
[  689.408332]  ? lock_downgrade+0x900/0x900
[  689.412479]  ? check_preemption_disabled+0x48/0x280
[  689.417495]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  689.422434]  ? kasan_check_read+0x11/0x20
[  689.426584]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  689.431889]  ? rcu_softirq_qs+0x20/0x20
[  689.435879]  ? filemap_map_pages+0xd92/0x1a20
[  689.440378]  ? print_usage_bug+0xc0/0xc0
[  689.444473]  ? find_get_entries_tag+0x1400/0x1400
[  689.449340]  ? __kasan_slab_free+0x102/0x150
[  689.453745]  ? kasan_slab_free+0xe/0x10
[  689.457819]  ? kmem_cache_free+0x83/0x290
[  689.461968]  ? __sigqueue_free.part.29+0x74/0x90
[  689.466742]  ? lock_acquire+0x1ed/0x520
[  689.470723]  ? ext4_filemap_fault+0x7a/0xad
[  689.475070]  ? lock_release+0xa00/0xa00
[  689.479043]  ? perf_trace_sched_process_exec+0x860/0x860
[  689.484493]  ? print_usage_bug+0xc0/0xc0
[  689.488559]  ? print_usage_bug+0xc0/0xc0
[  689.492630]  ? down_read+0x8d/0x120
[  689.496253]  ? ext4_filemap_fault+0x7a/0xad
[  689.500579]  ? __down_interruptible+0x700/0x700
[  689.505276]  ext4_filemap_fault+0x82/0xad
[  689.509439]  __do_fault+0x100/0x6b0
[  689.513068]  ? pmd_devmap_trans_unstable+0x220/0x220
[  689.518206]  ? mark_held_locks+0x130/0x130
[  689.522455]  ? mark_held_locks+0x130/0x130
[  689.526696]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  689.532240]  ? rcu_pm_notify+0xc0/0xc0
[  689.536143]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  689.541689]  __handle_mm_fault+0x3ea0/0x5be0
[  689.546110]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  689.550951]  ? _raw_spin_unlock_irq+0x27/0x80
[  689.555460]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  689.560045]  ? trace_hardirqs_on+0xbd/0x310
[  689.564370]  ? kasan_check_read+0x11/0x20
[  689.568516]  ? __set_current_blocked+0xdf/0x120
[  689.573216]  ? trace_hardirqs_off_caller+0x310/0x310
[  689.578333]  ? zap_class+0x640/0x640
[  689.582043]  ? zap_class+0x640/0x640
[  689.585768]  ? find_held_lock+0x36/0x1c0
[  689.589842]  ? handle_mm_fault+0x42a/0xc70
[  689.594078]  ? lock_downgrade+0x900/0x900
[  689.598227]  ? check_preemption_disabled+0x48/0x280
[  689.603266]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  689.608217]  ? kasan_check_read+0x11/0x20
[  689.612362]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  689.617653]  ? rcu_softirq_qs+0x20/0x20
[  689.621639]  ? trace_hardirqs_off_caller+0x310/0x310
[  689.626765]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  689.632396]  ? check_preemption_disabled+0x48/0x280
[  689.637430]  handle_mm_fault+0x54f/0xc70
[  689.641496]  ? __handle_mm_fault+0x5be0/0x5be0
[  689.646083]  ? find_vma+0x34/0x190
[  689.649632]  __do_page_fault+0x5e8/0xe60
[  689.653709]  ? exit_to_usermode_loop+0x1f4/0x380
[  689.658476]  do_page_fault+0xf2/0x7e0
[  689.662287]  ? vmalloc_sync_all+0x30/0x30
[  689.666435]  ? error_entry+0x70/0xd0
[  689.670149]  ? trace_hardirqs_off_caller+0xbb/0x310
[  689.675165]  ? trace_hardirqs_on_caller+0xc0/0x310
[  689.680093]  ? syscall_return_slowpath+0x5e0/0x5e0
[  689.685023]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  689.689870]  ? trace_hardirqs_on_caller+0x310/0x310
[  689.694886]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  689.700341]  ? prepare_exit_to_usermode+0x291/0x3b0
[  689.705359]  ? page_fault+0x8/0x30
[  689.708904]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  689.713762]  ? page_fault+0x8/0x30
[  689.717304]  page_fault+0x1e/0x30
[  689.720777] RIP: 0033:0x45db60
[  689.723980] Code: Bad RIP value.
[  689.727338] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  689.732696] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  689.739959] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  689.747238] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  689.754500] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  689.761774] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  689.769069] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  689.769074] warn_alloc_show_mem: 1 callbacks suppressed
[  689.769081] Mem-Info:
[  689.775919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  689.781299] active_anon:42936 inactive_anon:306 isolated_anon:0
[  689.781299]  active_file:13 inactive_file:13 isolated_file:0
[  689.781299]  unevictable:0 dirty:0 writeback:0 unstable:0
[  689.781299]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  689.781299]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  689.781299]  free:13785 free_pcp:492 free_cma:0
[  689.783663] Call Trace:
[  689.793048] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  689.825814]  dump_stack+0x244/0x39d
[  689.828369] 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
[  689.855951]  ? dump_stack_print_info.cold.1+0x20/0x20
[  689.859547] lowmem_reserve[]: 0 2818 6321 6321
[  689.885663]  warn_alloc.cold.116+0xb7/0x1bd
[  689.890815] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  689.895384]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  689.899675] lowmem_reserve[]: 0 0 3503 3503
[  689.926822]  ? lock_downgrade+0x900/0x900
[  689.931646] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  689.935964]  ? trace_hardirqs_off+0xb8/0x310
[  689.940104] lowmem_reserve[]: 0 0 0 0
[  689.969291]  ? trace_hardirqs_off+0xb8/0x310
[  689.973672] 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
[  689.977500]  __alloc_pages_slowpath+0x2651/0x2de0
[  689.981881] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  689.995423]  ? warn_alloc+0x120/0x120
[  690.000215] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  690.015408]  ? print_usage_bug+0xc0/0xc0
[  690.019204] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  690.034356]  ? warn_alloc+0x120/0x120
[  690.038408] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  690.047234]  ? warn_alloc+0x120/0x120
[  690.051012] 380 total pagecache pages
[  690.059578]  ? print_usage_bug+0xc0/0xc0
[  690.063360] 0 pages in swap cache
[  690.067163]  ? print_usage_bug+0xc0/0xc0
[  690.071197] Swap cache stats: add 0, delete 0, find 0/0
[  690.074638]  ? __lock_acquire+0x62f/0x4c20
[  690.078677] Free swap  = 0kB
[  690.084038]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  690.088245] Total swap = 0kB
[  690.091253]  ? should_fail+0x22d/0xd01
[  690.096769] 1965979 pages RAM
[  690.099798]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  690.103654] 0 pages HighMem/MovableOnly
[  690.106763]  ? __lock_acquire+0x62f/0x4c20
[  690.111842] 342854 pages reserved
[  690.115811]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  690.120016] 0 pages cma reserved
[  690.123458]  ? __lock_acquire+0x62f/0x4c20
[  690.128591] aoe: skb alloc failure
[  690.131887]  ? should_fail+0x22d/0xd01
[  690.131902]  ? find_held_lock+0x36/0x1c0
[  690.131923]  ? mark_held_locks+0x130/0x130
[  690.136168] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  690.139671]  ? mark_held_locks+0x130/0x130
[  690.143533] syz-fuzzer cpuset=/ mems_allowed=0
[  690.147588]  ? zap_class+0x640/0x640
[  690.174488]  ? zap_class+0x640/0x640
[  690.178203]  ? print_usage_bug+0xc0/0xc0
[  690.182274]  ? do_raw_spin_unlock+0xa7/0x330
[  690.186683]  ? zap_class+0x640/0x640
[  690.190394]  ? print_usage_bug+0xc0/0xc0
[  690.194475]  ? wq_watchdog_touch+0x9c/0xfe
[  690.198708]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.204246]  ? check_preemption_disabled+0x48/0x280
[  690.209271]  ? __lock_is_held+0xb5/0x140
[  690.213338]  __alloc_pages_nodemask+0xad8/0xea0
[  690.218004]  ? zap_class+0x640/0x640
[  690.221719]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  690.226763]  ? find_held_lock+0x36/0x1c0
[  690.230841]  ? ____cache_alloc_node+0x1c7/0x1e0
[  690.235509]  ? lock_downgrade+0x900/0x900
[  690.239662]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.245220]  cache_grow_begin+0xa5/0x8c0
[  690.249291]  ? do_raw_spin_unlock+0xa7/0x330
[  690.253707]  fallback_alloc+0x204/0x2e0
[  690.257700]  ____cache_alloc_node+0x1c7/0x1e0
[  690.262274]  kmem_cache_alloc_node+0xe3/0x730
[  690.266781]  ? ipv6_get_ifaddr+0x42e/0x620
[  690.271028]  __alloc_skb+0x119/0x770
[  690.274741]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  690.280032]  ? netdev_alloc_frag+0x1f0/0x1f0
[  690.284450]  ? lock_downgrade+0x900/0x900
[  690.288623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.294159]  ? refcount_sub_and_test_checked+0x203/0x310
[  690.299612]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  690.305062]  ? addrconf_rs_timer+0x690/0x690
[  690.309480]  ndisc_alloc_skb+0x144/0x340
[  690.313545]  ndisc_send_rs+0x331/0x6e0
[  690.317441]  addrconf_rs_timer+0x314/0x690
[  690.321684]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  690.325929]  call_timer_fn+0x272/0x920
[  690.329817]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  690.334054]  ? process_timeout+0x40/0x40
[  690.338123]  ? __run_timers+0x7da/0xc70
[  690.342100]  ? _raw_spin_unlock_irq+0x27/0x80
[  690.346595]  ? _raw_spin_unlock_irq+0x27/0x80
[  690.351085]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  690.355332]  ? lockdep_hardirqs_on+0x296/0x5b0
[  690.359913]  ? trace_hardirqs_on+0xbd/0x310
[  690.364235]  ? kasan_check_read+0x11/0x20
[  690.368398]  ? __run_timers+0x7da/0xc70
[  690.372373]  ? trace_hardirqs_off_caller+0x310/0x310
[  690.377492]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  690.381730]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  690.385966]  __run_timers+0x7e5/0xc70
[  690.389789]  ? timer_fixup_init+0x70/0x70
[  690.393936]  ? _raw_spin_unlock_irq+0x27/0x80
[  690.398429]  ? _raw_spin_unlock_irq+0x27/0x80
[  690.402928]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  690.407509]  ? trace_hardirqs_on+0xbd/0x310
[  690.411832]  ? kasan_check_read+0x11/0x20
[  690.415980]  ? finish_task_switch+0x1f4/0x910
[  690.420475]  ? trace_hardirqs_off_caller+0x310/0x310
[  690.425594]  ? compat_start_thread+0x80/0x80
[  690.430027]  ? pvclock_read_flags+0x160/0x160
[  690.434522]  ? __switch_to_asm+0x34/0x70
[  690.438589]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.444128]  ? check_preemption_disabled+0x48/0x280
[  690.449151]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  690.454702]  ? rcu_pm_notify+0xc0/0xc0
[  690.458592]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.464130]  ? check_preemption_disabled+0x48/0x280
[  690.469178]  run_timer_softirq+0x52/0xb0
[  690.473253]  ? rcu_read_lock_sched_held+0x14f/0x180
[  690.478269]  __do_softirq+0x308/0xb7e
[  690.482074]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  690.486833]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  690.491957]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  690.497421]  ? trace_hardirqs_on+0x310/0x310
[  690.501836]  ? schedule+0x108/0x460
[  690.505475]  ? trace_hardirqs_off+0xb8/0x310
[  690.509888]  ? smpboot_thread_fn+0x68b/0xa00
[  690.514293]  ? trace_hardirqs_on+0x310/0x310
[  690.518703]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  690.524252]  ? check_preemption_disabled+0x48/0x280
[  690.529307]  ? takeover_tasklets+0xa90/0xa90
[  690.533714]  run_ksoftirqd+0x5e/0x100
[  690.537516]  smpboot_thread_fn+0x68b/0xa00
[  690.541782]  ? sort_range+0x30/0x30
[  690.545424]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  690.550557]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  690.556606]  ? __kthread_parkme+0xfb/0x1a0
[  690.560857]  ? sort_range+0x30/0x30
[  690.564503]  kthread+0x35a/0x440
[  690.567871]  ? kthread_stop+0x900/0x900
[  690.571850]  ret_from_fork+0x3a/0x50
[  690.575582] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  690.575654] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  690.582592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  690.582597] Call Trace:
[  690.582603]  <IRQ>
[  690.582620]  dump_stack+0x244/0x39d
[  690.582638]  ? dump_stack_print_info.cold.1+0x20/0x20
[  690.589367] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  690.598645]  warn_alloc.cold.116+0xb7/0x1bd
[  690.601200] ksoftirqd/0 cpuset=/ mems_allowed=0
[  690.603339]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  690.638212]  ? lock_downgrade+0x900/0x900
[  690.642371]  ? trace_hardirqs_off+0xb8/0x310
[  690.646794]  ? trace_hardirqs_off+0xb8/0x310
[  690.651216]  __alloc_pages_slowpath+0x2651/0x2de0
[  690.656093]  ? warn_alloc+0x120/0x120
[  690.659899]  ? warn_alloc+0x120/0x120
[  690.663701]  ? __lock_acquire+0x62f/0x4c20
[  690.667937]  ? warn_alloc+0x120/0x120
[  690.671769]  ? print_usage_bug+0xc0/0xc0
[  690.675838]  ? print_usage_bug+0xc0/0xc0
[  690.679906]  ? mark_held_locks+0x130/0x130
[  690.684149]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  690.690199]  ? should_fail+0x22d/0xd01
[  690.694086]  ? zap_class+0x640/0x640
[  690.697820]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  690.702928]  ? __lock_acquire+0x62f/0x4c20
[  690.707176]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  690.712282]  ? should_fail+0x22d/0xd01
[  690.716179]  ? mark_held_locks+0x130/0x130
[  690.720419]  ? mark_held_locks+0x130/0x130
[  690.724649]  ? lock_downgrade+0x900/0x900
[  690.728794]  ? zap_class+0x640/0x640
[  690.732518]  ? zap_class+0x640/0x640
[  690.736236]  ? zap_class+0x640/0x640
[  690.739947]  ? do_raw_spin_unlock+0xa7/0x330
[  690.744358]  ? trace_hardirqs_on+0x310/0x310
[  690.748782]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.754319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.759872]  ? check_preemption_disabled+0x48/0x280
[  690.764901]  ? __lock_is_held+0xb5/0x140
[  690.768977]  __alloc_pages_nodemask+0xad8/0xea0
[  690.773643]  ? zap_class+0x640/0x640
[  690.777359]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  690.782387]  ? find_held_lock+0x36/0x1c0
[  690.786459]  ? ____cache_alloc_node+0x1c7/0x1e0
[  690.791158]  ? lock_downgrade+0x900/0x900
[  690.795313]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.800871]  cache_grow_begin+0xa5/0x8c0
[  690.804930]  ? do_raw_spin_unlock+0xa7/0x330
[  690.809350]  fallback_alloc+0x204/0x2e0
[  690.813330]  ____cache_alloc_node+0x1c7/0x1e0
[  690.817829]  kmem_cache_alloc_node+0xe3/0x730
[  690.822339]  ? lockdep_hardirqs_on+0x296/0x5b0
[  690.826930]  __alloc_skb+0x119/0x770
[  690.830646]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  690.836013]  ? netdev_alloc_frag+0x1f0/0x1f0
[  690.840429]  ? vprintk_default+0x28/0x30
[  690.844493]  ? vprintk_func+0x85/0x181
[  690.848381]  ? printk+0xa7/0xcf
[  690.851660]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  690.856445]  new_skb+0x26/0x1c0
[  690.859727]  aoecmd_cfg+0x279/0x7f0
[  690.863361]  ? find_held_lock+0x36/0x1c0
[  690.867435]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  690.871771]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.877334]  ? __lock_is_held+0xb5/0x140
[  690.881418]  discover_timer+0x50/0x60
[  690.885217]  call_timer_fn+0x272/0x920
[  690.889104]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  690.893944]  ? process_timeout+0x40/0x40
[  690.898014]  ? mark_held_locks+0xc7/0x130
[  690.902164]  ? _raw_spin_unlock_irq+0x27/0x80
[  690.906662]  ? _raw_spin_unlock_irq+0x27/0x80
[  690.911184]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  690.916028]  ? lockdep_hardirqs_on+0x296/0x5b0
[  690.920616]  ? trace_hardirqs_on+0xbd/0x310
[  690.924936]  ? kasan_check_read+0x11/0x20
[  690.929082]  ? __run_timers+0x7da/0xc70
[  690.933064]  ? trace_hardirqs_off_caller+0x310/0x310
[  690.938180]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  690.943022]  __run_timers+0x7e5/0xc70
[  690.946838]  ? timer_fixup_init+0x70/0x70
[  690.950989]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  690.956005]  ? zap_class+0x640/0x640
[  690.959725]  ? print_usage_bug+0xc0/0xc0
[  690.963795]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  690.968993]  ? find_held_lock+0x36/0x1c0
[  690.973062]  ? zap_class+0x640/0x640
[  690.976789]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.982334]  ? check_preemption_disabled+0x48/0x280
[  690.987422]  ? __lock_is_held+0xb5/0x140
[  690.991497]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  690.997057]  ? check_preemption_disabled+0x48/0x280
[  691.002078]  run_timer_softirq+0x52/0xb0
[  691.006154]  ? rcu_read_lock_sched_held+0x14f/0x180
[  691.011174]  __do_softirq+0x308/0xb7e
[  691.014981]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  691.019477]  ? lock_downgrade+0x900/0x900
[  691.023658]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  691.028776]  ? pvclock_read_flags+0x160/0x160
[  691.033311]  ? lapic_next_event+0x5a/0x90
[  691.037459]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  691.043020]  ? kvm_clock_read+0x18/0x30
[  691.046993]  ? kvm_sched_clock_read+0x9/0x20
[  691.051417]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  691.056956]  ? check_preemption_disabled+0x48/0x280
[  691.061989]  irq_exit+0x17f/0x1c0
[  691.065444]  smp_apic_timer_interrupt+0x1cb/0x760
[  691.070305]  ? smp_reschedule_interrupt+0x109/0x650
[  691.075323]  ? smp_call_function_single_interrupt+0x650/0x650
[  691.081207]  ? interrupt_entry+0xb5/0xc0
[  691.085282]  ? trace_hardirqs_off_caller+0xbb/0x310
[  691.090323]  ? trace_hardirqs_off_caller+0xbb/0x310
[  691.095341]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  691.100191]  ? trace_hardirqs_on_caller+0x310/0x310
[  691.105250]  ? trace_hardirqs_on_caller+0x310/0x310
[  691.110276]  ? task_prio+0x50/0x50
[  691.113833]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  691.119370]  ? check_preemption_disabled+0x48/0x280
[  691.124394]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  691.129247]  apic_timer_interrupt+0xf/0x20
[  691.133481]  </IRQ>
[  691.135720] RIP: 0010:dump_stack+0x358/0x39d
[  691.140131] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  691.159030] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  691.166734] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  691.174008] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  691.181277] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  691.188553] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  691.195820] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  691.203103]  ? dump_stack+0x34f/0x39d
[  691.206934]  ? dump_stack_print_info.cold.1+0x20/0x20
[  691.212154]  ? mark_held_locks+0x130/0x130
[  691.216403]  ? mark_held_locks+0x130/0x130
[  691.220643]  dump_header+0x27b/0xf72
[  691.224383]  ? pagefault_out_of_memory+0x197/0x197
[  691.229319]  ? __lock_acquire+0x62f/0x4c20
[  691.233554]  ? percpu_ref_get_many+0x240/0x240
[  691.238157]  ? print_usage_bug+0xc0/0xc0
[  691.242227]  ? zap_class+0x640/0x640
[  691.245944]  ? print_usage_bug+0xc0/0xc0
[  691.250002]  ? print_usage_bug+0xc0/0xc0
[  691.254069]  ? zap_class+0x640/0x640
[  691.257875]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  691.263417]  ? find_held_lock+0x36/0x1c0
[  691.267489]  ? mark_held_locks+0xc7/0x130
[  691.271660]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  691.276786]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  691.281892]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  691.286493]  ? trace_hardirqs_on+0xbd/0x310
[  691.290811]  ? kasan_check_read+0x11/0x20
[  691.294974]  ? ___ratelimit+0x3b4/0x672
[  691.298965]  ? trace_hardirqs_off_caller+0x310/0x310
[  691.304073]  ? trace_hardirqs_on+0x310/0x310
[  691.308481]  ? lock_downgrade+0x900/0x900
[  691.312634]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  691.317740]  ? ___ratelimit+0x3b9/0x672
[  691.321727]  ? idr_get_free+0xf70/0xf70
[  691.325720]  ? find_held_lock+0x36/0x1c0
[  691.329801]  oom_kill_process.cold.27+0x10/0x903
[  691.334561]  ? zap_class+0x640/0x640
[  691.338304]  ? check_preemption_disabled+0x48/0x280
[  691.343326]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  691.348258]  ? kasan_check_read+0x11/0x20
[  691.352409]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  691.357686]  ? oom_evaluate_task+0x540/0x540
[  691.362097]  ? find_held_lock+0x36/0x1c0
[  691.366166]  ? out_of_memory+0x974/0x1430
[  691.370316]  ? lock_downgrade+0x900/0x900
[  691.374464]  ? check_preemption_disabled+0x48/0x280
[  691.379486]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  691.384415]  ? kasan_check_read+0x11/0x20
[  691.388560]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  691.393838]  ? rcu_softirq_qs+0x20/0x20
[  691.397821]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  691.403355]  ? oom_evaluate_task+0x302/0x540
[  691.407776]  out_of_memory+0xa84/0x1430
[  691.411790]  ? oom_killer_disable+0x3a0/0x3a0
[  691.416290]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  691.421228]  ? __ww_mutex_check_waiters+0x160/0x160
[  691.426257]  __alloc_pages_slowpath+0x232c/0x2de0
[  691.431133]  ? warn_alloc+0x120/0x120
[  691.434936]  ? mark_held_locks+0x130/0x130
[  691.439177]  ? find_get_entry+0xaae/0x1120
[  691.443431]  ? filemap_map_pages+0x1a20/0x1a20
[  691.448018]  ? zap_class+0x640/0x640
[  691.451741]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  691.457313]  ? check_preemption_disabled+0x48/0x280
[  691.462342]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  691.467894]  ? should_fail+0x22d/0xd01
[  691.471794]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  691.476901]  ? zap_class+0x640/0x640
[  691.480669]  ? __lock_is_held+0xb5/0x140
[  691.484738]  ? mark_held_locks+0x130/0x130
[  691.488981]  ? lock_release+0xa00/0xa00
[  691.492960]  ? perf_trace_sched_process_exec+0x860/0x860
[  691.498409]  ? xa_load+0x2ba/0x460
[  691.501953]  ? lock_downgrade+0x900/0x900
[  691.506116]  ? __might_sleep+0x95/0x190
[  691.510098]  __alloc_pages_nodemask+0xad8/0xea0
[  691.514783]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  691.519802]  ? __page_cache_alloc+0x191/0x5c0
[  691.524299]  ? xa_load+0x2e1/0x460
[  691.527854]  ? xa_clear_mark+0x40/0x40
[  691.531745]  ? zap_class+0x640/0x640
[  691.535492]  ? zap_class+0x640/0x640
[  691.539204]  ? zap_class+0x640/0x640
[  691.542923]  ? __do_page_cache_readahead+0x663/0x810
[  691.548043]  ? find_held_lock+0x36/0x1c0
[  691.552115]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  691.557664]  alloc_pages_current+0x173/0x350
[  691.562084]  __page_cache_alloc+0x38c/0x5c0
[  691.566402]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  691.571330]  ? kasan_check_read+0x11/0x20
[  691.575479]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  691.580791]  ? generic_perform_write+0x6a0/0x6a0
[  691.585549]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  691.591084]  ? check_preemption_disabled+0x48/0x280
[  691.596185]  filemap_fault+0x1595/0x25f0
[  691.600280]  ? __lock_page_or_retry+0xa00/0xa00
[  691.604956]  ? mark_held_locks+0x130/0x130
[  691.609202]  ? filemap_map_pages+0xd6b/0x1a20
[  691.613717]  ? lock_downgrade+0x900/0x900
[  691.617873]  ? check_preemption_disabled+0x48/0x280
[  691.622896]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  691.627831]  ? kasan_check_read+0x11/0x20
[  691.632006]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  691.637310]  ? rcu_softirq_qs+0x20/0x20
[  691.641339]  ? filemap_map_pages+0xd92/0x1a20
[  691.645867]  ? print_usage_bug+0xc0/0xc0
[  691.649937]  ? find_get_entries_tag+0x1400/0x1400
[  691.654796]  ? __kasan_slab_free+0x102/0x150
[  691.659203]  ? kasan_slab_free+0xe/0x10
[  691.663175]  ? kmem_cache_free+0x83/0x290
[  691.667328]  ? __sigqueue_free.part.29+0x74/0x90
[  691.672102]  ? lock_acquire+0x1ed/0x520
[  691.676078]  ? ext4_filemap_fault+0x7a/0xad
[  691.680405]  ? lock_release+0xa00/0xa00
[  691.684394]  ? perf_trace_sched_process_exec+0x860/0x860
[  691.689849]  ? print_usage_bug+0xc0/0xc0
[  691.693925]  ? print_usage_bug+0xc0/0xc0
[  691.698000]  ? down_read+0x8d/0x120
[  691.701622]  ? ext4_filemap_fault+0x7a/0xad
[  691.705957]  ? __down_interruptible+0x700/0x700
[  691.710641]  ext4_filemap_fault+0x82/0xad
[  691.714795]  __do_fault+0x100/0x6b0
[  691.718432]  ? pmd_devmap_trans_unstable+0x220/0x220
[  691.723537]  ? mark_held_locks+0x130/0x130
[  691.727780]  ? mark_held_locks+0x130/0x130
[  691.732023]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  691.737560]  ? rcu_pm_notify+0xc0/0xc0
[  691.741458]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  691.746999]  __handle_mm_fault+0x3ea0/0x5be0
[  691.751415]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  691.756268]  ? _raw_spin_unlock_irq+0x27/0x80
[  691.760817]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  691.765401]  ? trace_hardirqs_on+0xbd/0x310
[  691.769724]  ? kasan_check_read+0x11/0x20
[  691.773879]  ? __set_current_blocked+0xdf/0x120
[  691.778565]  ? trace_hardirqs_off_caller+0x310/0x310
[  691.783679]  ? zap_class+0x640/0x640
[  691.787394]  ? zap_class+0x640/0x640
[  691.791117]  ? find_held_lock+0x36/0x1c0
[  691.795184]  ? handle_mm_fault+0x42a/0xc70
[  691.799417]  ? lock_downgrade+0x900/0x900
[  691.803567]  ? check_preemption_disabled+0x48/0x280
[  691.808585]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  691.813514]  ? kasan_check_read+0x11/0x20
[  691.817657]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  691.822953]  ? rcu_softirq_qs+0x20/0x20
[  691.826925]  ? trace_hardirqs_off_caller+0x310/0x310
[  691.832027]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  691.837582]  ? check_preemption_disabled+0x48/0x280
[  691.842622]  handle_mm_fault+0x54f/0xc70
[  691.846688]  ? __handle_mm_fault+0x5be0/0x5be0
[  691.851283]  ? find_vma+0x34/0x190
[  691.854887]  __do_page_fault+0x5e8/0xe60
[  691.858960]  ? exit_to_usermode_loop+0x1f4/0x380
[  691.863729]  do_page_fault+0xf2/0x7e0
[  691.867541]  ? vmalloc_sync_all+0x30/0x30
[  691.871722]  ? error_entry+0x70/0xd0
[  691.875446]  ? trace_hardirqs_off_caller+0xbb/0x310
[  691.880459]  ? trace_hardirqs_on_caller+0xc0/0x310
[  691.885387]  ? syscall_return_slowpath+0x5e0/0x5e0
[  691.890328]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  691.895191]  ? trace_hardirqs_on_caller+0x310/0x310
[  691.900222]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  691.905674]  ? prepare_exit_to_usermode+0x291/0x3b0
[  691.910714]  ? page_fault+0x8/0x30
[  691.914269]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  691.919119]  ? page_fault+0x8/0x30
[  691.922658]  page_fault+0x1e/0x30
[  691.926124] RIP: 0033:0x45db60
[  691.929343] Code: Bad RIP value.
[  691.932716] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  691.938080] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  691.945347] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  691.952611] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  691.959875] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  691.967147] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  691.974439] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  691.974444] warn_alloc_show_mem: 1 callbacks suppressed
[  691.974456] Mem-Info:
[  691.981291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  691.986658] active_anon:42936 inactive_anon:306 isolated_anon:0
[  691.986658]  active_file:13 inactive_file:13 isolated_file:0
[  691.986658]  unevictable:0 dirty:0 writeback:0 unstable:0
[  691.986658]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  691.986658]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  691.986658]  free:13785 free_pcp:492 free_cma:0
[  691.989031] Call Trace:
[  691.998420] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  692.031187]  dump_stack+0x244/0x39d
[  692.033764] 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
[  692.061350]  ? dump_stack_print_info.cold.1+0x20/0x20
[  692.064952] lowmem_reserve[]: 0 2818 6321 6321
[  692.091062]  warn_alloc.cold.116+0xb7/0x1bd
[  692.096216] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  692.100791]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  692.105086] lowmem_reserve[]: 0 0 3503 3503
[  692.132236]  ? lock_downgrade+0x900/0x900
[  692.137053] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  692.141367]  ? trace_hardirqs_off+0xb8/0x310
[  692.145489] lowmem_reserve[]: 0 0 0 0
[  692.174636]  ? trace_hardirqs_off+0xb8/0x310
[  692.179029] 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
[  692.182831]  __alloc_pages_slowpath+0x2651/0x2de0
[  692.187208] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  692.200745]  ? warn_alloc+0x120/0x120
[  692.205548] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  692.220725]  ? print_usage_bug+0xc0/0xc0
[  692.224503] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  692.239660]  ? warn_alloc+0x120/0x120
[  692.243704] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  692.252558]  ? warn_alloc+0x120/0x120
[  692.256343] 380 total pagecache pages
[  692.264931]  ? print_usage_bug+0xc0/0xc0
[  692.268731] 0 pages in swap cache
[  692.272516]  ? print_usage_bug+0xc0/0xc0
[  692.276557] Swap cache stats: add 0, delete 0, find 0/0
[  692.280037]  ? __lock_acquire+0x62f/0x4c20
[  692.284077] Free swap  = 0kB
[  692.289466]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  692.293689] Total swap = 0kB
[  692.296703]  ? should_fail+0x22d/0xd01
[  692.302212] 1965979 pages RAM
[  692.305224]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  692.309098] 0 pages HighMem/MovableOnly
[  692.312194]  ? __lock_acquire+0x62f/0x4c20
[  692.317271] 342854 pages reserved
[  692.321239]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  692.325448] 0 pages cma reserved
[  692.328896]  ? __lock_acquire+0x62f/0x4c20
[  692.334025] aoe: skb alloc failure
[  692.337327]  ? should_fail+0x22d/0xd01
[  692.337342]  ? find_held_lock+0x36/0x1c0
[  692.341629] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  692.345095]  ? mark_held_locks+0x130/0x130
[  692.348971] syz-fuzzer cpuset=/ mems_allowed=0
[  692.353024]  ? mark_held_locks+0x130/0x130
[  692.376231]  ? zap_class+0x640/0x640
[  692.379953]  ? mark_held_locks+0xc7/0x130
[  692.384098]  ? do_raw_spin_unlock+0xa7/0x330
[  692.388504]  ? zap_class+0x640/0x640
[  692.392218]  ? print_usage_bug+0xc0/0xc0
[  692.396288]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  692.401829]  ? check_preemption_disabled+0x48/0x280
[  692.406857]  ? __lock_is_held+0xb5/0x140
[  692.410922]  __alloc_pages_nodemask+0xad8/0xea0
[  692.415608]  ? zap_class+0x640/0x640
[  692.419342]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  692.424374]  ? find_held_lock+0x36/0x1c0
[  692.428441]  ? ____cache_alloc_node+0x1c7/0x1e0
[  692.433113]  ? lock_downgrade+0x900/0x900
[  692.437267]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  692.442814]  cache_grow_begin+0xa5/0x8c0
[  692.446876]  ? do_raw_spin_unlock+0xa7/0x330
[  692.451290]  fallback_alloc+0x204/0x2e0
[  692.455276]  ____cache_alloc_node+0x1c7/0x1e0
[  692.459798]  kmem_cache_alloc_node+0xe3/0x730
[  692.464293]  ? ipv6_get_ifaddr+0x42e/0x620
[  692.468537]  __alloc_skb+0x119/0x770
[  692.472246]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  692.477528]  ? netdev_alloc_frag+0x1f0/0x1f0
[  692.481934]  ? lock_downgrade+0x900/0x900
[  692.486099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  692.491661]  ? refcount_sub_and_test_checked+0x203/0x310
[  692.497118]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  692.502567]  ? addrconf_rs_timer+0x690/0x690
[  692.507108]  ndisc_alloc_skb+0x144/0x340
[  692.511177]  ndisc_send_rs+0x331/0x6e0
[  692.515095]  addrconf_rs_timer+0x314/0x690
[  692.519369]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  692.523616]  call_timer_fn+0x272/0x920
[  692.527503]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  692.531764]  ? process_timeout+0x40/0x40
[  692.535841]  ? __run_timers+0x7da/0xc70
[  692.539865]  ? _raw_spin_unlock_irq+0x27/0x80
[  692.544360]  ? _raw_spin_unlock_irq+0x27/0x80
[  692.548864]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  692.553116]  ? lockdep_hardirqs_on+0x296/0x5b0
[  692.558163]  ? trace_hardirqs_on+0xbd/0x310
[  692.562490]  ? kasan_check_read+0x11/0x20
[  692.566635]  ? __run_timers+0x7da/0xc70
[  692.570612]  ? trace_hardirqs_off_caller+0x310/0x310
[  692.575720]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  692.579986]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  692.584223]  __run_timers+0x7e5/0xc70
[  692.588034]  ? timer_fixup_init+0x70/0x70
[  692.592181]  ? _raw_spin_unlock_irq+0x27/0x80
[  692.596684]  ? _raw_spin_unlock_irq+0x27/0x80
[  692.601184]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  692.605795]  ? trace_hardirqs_on+0xbd/0x310
[  692.610126]  ? kasan_check_read+0x11/0x20
[  692.614279]  ? finish_task_switch+0x1f4/0x910
[  692.618791]  ? trace_hardirqs_off_caller+0x310/0x310
[  692.623896]  ? compat_start_thread+0x80/0x80
[  692.628329]  ? pvclock_read_flags+0x160/0x160
[  692.632823]  ? __switch_to_asm+0x34/0x70
[  692.636890]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  692.642430]  ? check_preemption_disabled+0x48/0x280
[  692.647456]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  692.653011]  ? rcu_pm_notify+0xc0/0xc0
[  692.656905]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  692.662442]  ? check_preemption_disabled+0x48/0x280
[  692.667467]  run_timer_softirq+0x52/0xb0
[  692.671530]  ? rcu_read_lock_sched_held+0x14f/0x180
[  692.676585]  __do_softirq+0x308/0xb7e
[  692.680460]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  692.685473]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  692.690600]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  692.696053]  ? trace_hardirqs_on+0x310/0x310
[  692.700480]  ? schedule+0x108/0x460
[  692.704150]  ? trace_hardirqs_off+0xb8/0x310
[  692.708573]  ? smpboot_thread_fn+0x68b/0xa00
[  692.712984]  ? trace_hardirqs_on+0x310/0x310
[  692.717399]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  692.722968]  ? check_preemption_disabled+0x48/0x280
[  692.727999]  ? takeover_tasklets+0xa90/0xa90
[  692.732406]  run_ksoftirqd+0x5e/0x100
[  692.736226]  smpboot_thread_fn+0x68b/0xa00
[  692.740459]  ? sort_range+0x30/0x30
[  692.744086]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  692.749199]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  692.754771]  ? __kthread_parkme+0xfb/0x1a0
[  692.759052]  ? sort_range+0x30/0x30
[  692.762690]  kthread+0x35a/0x440
[  692.766060]  ? kthread_stop+0x900/0x900
[  692.770036]  ret_from_fork+0x3a/0x50
[  692.773777] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  692.773877] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  692.780807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  692.780812] Call Trace:
[  692.780819]  <IRQ>
[  692.780838]  dump_stack+0x244/0x39d
[  692.780856]  ? dump_stack_print_info.cold.1+0x20/0x20
[  692.787385] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  692.796683]  warn_alloc.cold.116+0xb7/0x1bd
[  692.799246] ksoftirqd/0 cpuset=/ mems_allowed=0
[  692.801405]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  692.834313]  ? lock_downgrade+0x900/0x900
[  692.838468]  ? trace_hardirqs_off+0xb8/0x310
[  692.842886]  ? trace_hardirqs_off+0xb8/0x310
[  692.847305]  __alloc_pages_slowpath+0x2651/0x2de0
[  692.852193]  ? warn_alloc+0x120/0x120
[  692.856005]  ? warn_alloc+0x120/0x120
[  692.859845]  ? warn_alloc+0x120/0x120
[  692.863684]  ? print_usage_bug+0xc0/0xc0
[  692.867745]  ? print_usage_bug+0xc0/0xc0
[  692.871815]  ? ktime_get+0x2c1/0x400
[  692.875539]  ? check_preemption_disabled+0x48/0x280
[  692.880554]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  692.885053]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  692.890593]  ? should_fail+0x22d/0xd01
[  692.894510]  ? kasan_check_read+0x11/0x20
[  692.898663]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  692.903786]  ? __lock_acquire+0x62f/0x4c20
[  692.908052]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  692.913152]  ? should_fail+0x22d/0xd01
[  692.917039]  ? print_usage_bug+0xc0/0xc0
[  692.921111]  ? mark_held_locks+0x130/0x130
[  692.925350]  ? mark_held_locks+0x130/0x130
[  692.929586]  ? check_preemption_disabled+0x48/0x280
[  692.934610]  ? zap_class+0x640/0x640
[  692.938329]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  692.943087]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  692.948629]  ? check_preemption_disabled+0x48/0x280
[  692.953654]  ? __lock_is_held+0xb5/0x140
[  692.957721]  __alloc_pages_nodemask+0xad8/0xea0
[  692.962395]  ? zap_class+0x640/0x640
[  692.966115]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  692.971143]  ? find_held_lock+0x36/0x1c0
[  692.975217]  ? ____cache_alloc_node+0x1c7/0x1e0
[  692.979891]  ? lock_downgrade+0x900/0x900
[  692.984049]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  692.989624]  cache_grow_begin+0xa5/0x8c0
[  692.993693]  ? do_raw_spin_unlock+0xa7/0x330
[  692.998104]  fallback_alloc+0x204/0x2e0
[  693.002084]  ____cache_alloc_node+0x1c7/0x1e0
[  693.006600]  kmem_cache_alloc_node+0xe3/0x730
[  693.011097]  ? lockdep_hardirqs_on+0x296/0x5b0
[  693.015702]  __alloc_skb+0x119/0x770
[  693.019415]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  693.024787]  ? netdev_alloc_frag+0x1f0/0x1f0
[  693.029205]  ? vprintk_default+0x28/0x30
[  693.033268]  ? vprintk_func+0x85/0x181
[  693.037160]  ? printk+0xa7/0xcf
[  693.040455]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  693.045223]  new_skb+0x26/0x1c0
[  693.048502]  aoecmd_cfg+0x279/0x7f0
[  693.052133]  ? find_held_lock+0x36/0x1c0
[  693.056211]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  693.060540]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  693.066107]  ? __lock_is_held+0xb5/0x140
[  693.070181]  discover_timer+0x50/0x60
[  693.073979]  call_timer_fn+0x272/0x920
[  693.077868]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  693.082709]  ? process_timeout+0x40/0x40
[  693.086783]  ? mark_held_locks+0xc7/0x130
[  693.090936]  ? _raw_spin_unlock_irq+0x27/0x80
[  693.095458]  ? _raw_spin_unlock_irq+0x27/0x80
[  693.099982]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  693.104824]  ? lockdep_hardirqs_on+0x296/0x5b0
[  693.109423]  ? trace_hardirqs_on+0xbd/0x310
[  693.113746]  ? kasan_check_read+0x11/0x20
[  693.117908]  ? __run_timers+0x7da/0xc70
[  693.121884]  ? trace_hardirqs_off_caller+0x310/0x310
[  693.127000]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  693.131844]  __run_timers+0x7e5/0xc70
[  693.135658]  ? timer_fixup_init+0x70/0x70
[  693.139809]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  693.144825]  ? zap_class+0x640/0x640
[  693.148545]  ? print_usage_bug+0xc0/0xc0
[  693.152610]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  693.157807]  ? find_held_lock+0x36/0x1c0
[  693.161877]  ? zap_class+0x640/0x640
[  693.165595]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  693.171133]  ? check_preemption_disabled+0x48/0x280
[  693.176162]  ? __lock_is_held+0xb5/0x140
[  693.180227]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  693.185787]  ? check_preemption_disabled+0x48/0x280
[  693.190844]  run_timer_softirq+0x52/0xb0
[  693.194906]  ? rcu_read_lock_sched_held+0x14f/0x180
[  693.199922]  __do_softirq+0x308/0xb7e
[  693.203723]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  693.208226]  ? lock_downgrade+0x900/0x900
[  693.212382]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  693.217495]  ? pvclock_read_flags+0x160/0x160
[  693.221991]  ? lapic_next_event+0x5a/0x90
[  693.226137]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  693.231682]  ? kvm_clock_read+0x18/0x30
[  693.235653]  ? kvm_sched_clock_read+0x9/0x20
[  693.240077]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  693.245613]  ? check_preemption_disabled+0x48/0x280
[  693.250644]  irq_exit+0x17f/0x1c0
[  693.254113]  smp_apic_timer_interrupt+0x1cb/0x760
[  693.258973]  ? smp_reschedule_interrupt+0x109/0x650
[  693.263992]  ? smp_call_function_single_interrupt+0x650/0x650
[  693.269876]  ? interrupt_entry+0xb5/0xc0
[  693.273938]  ? trace_hardirqs_off_caller+0xbb/0x310
[  693.278952]  ? trace_hardirqs_off_caller+0xbb/0x310
[  693.283969]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  693.288814]  ? trace_hardirqs_on_caller+0x310/0x310
[  693.293846]  ? trace_hardirqs_on_caller+0x310/0x310
[  693.298887]  ? task_prio+0x50/0x50
[  693.302430]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  693.307972]  ? check_preemption_disabled+0x48/0x280
[  693.312992]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  693.317861]  apic_timer_interrupt+0xf/0x20
[  693.322117]  </IRQ>
[  693.324358] RIP: 0010:dump_stack+0x358/0x39d
[  693.328777] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  693.347690] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  693.355395] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  693.362663] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  693.369960] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  693.377226] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  693.384493] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  693.391784]  ? dump_stack+0x34f/0x39d
[  693.395602]  ? dump_stack_print_info.cold.1+0x20/0x20
[  693.400809]  ? mark_held_locks+0x130/0x130
[  693.405042]  ? mark_held_locks+0x130/0x130
[  693.409284]  dump_header+0x27b/0xf72
[  693.413008]  ? pagefault_out_of_memory+0x197/0x197
[  693.417950]  ? __lock_acquire+0x62f/0x4c20
[  693.422185]  ? percpu_ref_get_many+0x240/0x240
[  693.426775]  ? print_usage_bug+0xc0/0xc0
[  693.430843]  ? zap_class+0x640/0x640
[  693.434557]  ? print_usage_bug+0xc0/0xc0
[  693.438619]  ? print_usage_bug+0xc0/0xc0
[  693.442688]  ? zap_class+0x640/0x640
[  693.446403]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  693.451948]  ? find_held_lock+0x36/0x1c0
[  693.456032]  ? mark_held_locks+0xc7/0x130
[  693.460195]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  693.465304]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  693.470419]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  693.475002]  ? trace_hardirqs_on+0xbd/0x310
[  693.479339]  ? kasan_check_read+0x11/0x20
[  693.483500]  ? ___ratelimit+0x3b4/0x672
[  693.487492]  ? trace_hardirqs_off_caller+0x310/0x310
[  693.492595]  ? trace_hardirqs_on+0x310/0x310
[  693.497005]  ? lock_downgrade+0x900/0x900
[  693.501159]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  693.506262]  ? ___ratelimit+0x3b9/0x672
[  693.510253]  ? idr_get_free+0xf70/0xf70
[  693.514225]  ? find_held_lock+0x36/0x1c0
[  693.518298]  oom_kill_process.cold.27+0x10/0x903
[  693.523056]  ? zap_class+0x640/0x640
[  693.526781]  ? check_preemption_disabled+0x48/0x280
[  693.531798]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  693.536726]  ? kasan_check_read+0x11/0x20
[  693.540898]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  693.546176]  ? oom_evaluate_task+0x540/0x540
[  693.550614]  ? find_held_lock+0x36/0x1c0
[  693.554695]  ? out_of_memory+0x974/0x1430
[  693.558847]  ? lock_downgrade+0x900/0x900
[  693.562998]  ? check_preemption_disabled+0x48/0x280
[  693.568019]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  693.572957]  ? kasan_check_read+0x11/0x20
[  693.577107]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  693.582384]  ? rcu_softirq_qs+0x20/0x20
[  693.586369]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  693.591905]  ? oom_evaluate_task+0x302/0x540
[  693.596323]  out_of_memory+0xa84/0x1430
[  693.600325]  ? oom_killer_disable+0x3a0/0x3a0
[  693.604838]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  693.609806]  ? __ww_mutex_check_waiters+0x160/0x160
[  693.614852]  __alloc_pages_slowpath+0x232c/0x2de0
[  693.619740]  ? warn_alloc+0x120/0x120
[  693.623547]  ? mark_held_locks+0x130/0x130
[  693.627839]  ? find_get_entry+0xaae/0x1120
[  693.632085]  ? filemap_map_pages+0x1a20/0x1a20
[  693.636674]  ? zap_class+0x640/0x640
[  693.640424]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  693.645966]  ? check_preemption_disabled+0x48/0x280
[  693.650994]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  693.656526]  ? should_fail+0x22d/0xd01
[  693.660444]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  693.665548]  ? zap_class+0x640/0x640
[  693.669295]  ? __lock_is_held+0xb5/0x140
[  693.673364]  ? mark_held_locks+0x130/0x130
[  693.677605]  ? lock_release+0xa00/0xa00
[  693.681581]  ? perf_trace_sched_process_exec+0x860/0x860
[  693.687031]  ? xa_load+0x2ba/0x460
[  693.690587]  ? lock_downgrade+0x900/0x900
[  693.694745]  ? __might_sleep+0x95/0x190
[  693.698758]  __alloc_pages_nodemask+0xad8/0xea0
[  693.703434]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  693.708449]  ? __page_cache_alloc+0x191/0x5c0
[  693.712966]  ? xa_load+0x2e1/0x460
[  693.716519]  ? xa_clear_mark+0x40/0x40
[  693.720435]  ? zap_class+0x640/0x640
[  693.724171]  ? zap_class+0x640/0x640
[  693.727889]  ? zap_class+0x640/0x640
[  693.731602]  ? __do_page_cache_readahead+0x663/0x810
[  693.736714]  ? find_held_lock+0x36/0x1c0
[  693.740819]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  693.746361]  alloc_pages_current+0x173/0x350
[  693.750789]  __page_cache_alloc+0x38c/0x5c0
[  693.755108]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  693.760037]  ? kasan_check_read+0x11/0x20
[  693.764204]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  693.769480]  ? generic_perform_write+0x6a0/0x6a0
[  693.774237]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  693.779786]  ? check_preemption_disabled+0x48/0x280
[  693.784813]  filemap_fault+0x1595/0x25f0
[  693.788888]  ? __lock_page_or_retry+0xa00/0xa00
[  693.793559]  ? mark_held_locks+0x130/0x130
[  693.797805]  ? filemap_map_pages+0xd6b/0x1a20
[  693.802305]  ? lock_downgrade+0x900/0x900
[  693.806452]  ? check_preemption_disabled+0x48/0x280
[  693.811469]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  693.816407]  ? kasan_check_read+0x11/0x20
[  693.820583]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  693.825873]  ? rcu_softirq_qs+0x20/0x20
[  693.829859]  ? filemap_map_pages+0xd92/0x1a20
[  693.834378]  ? print_usage_bug+0xc0/0xc0
[  693.838445]  ? find_get_entries_tag+0x1400/0x1400
[  693.843287]  ? __kasan_slab_free+0x102/0x150
[  693.847721]  ? kasan_slab_free+0xe/0x10
[  693.851699]  ? kmem_cache_free+0x83/0x290
[  693.855852]  ? __sigqueue_free.part.29+0x74/0x90
[  693.860636]  ? lock_acquire+0x1ed/0x520
[  693.864613]  ? ext4_filemap_fault+0x7a/0xad
[  693.868940]  ? lock_release+0xa00/0xa00
[  693.872913]  ? perf_trace_sched_process_exec+0x860/0x860
[  693.878365]  ? print_usage_bug+0xc0/0xc0
[  693.882448]  ? print_usage_bug+0xc0/0xc0
[  693.886518]  ? down_read+0x8d/0x120
[  693.890144]  ? ext4_filemap_fault+0x7a/0xad
[  693.894493]  ? __down_interruptible+0x700/0x700
[  693.899174]  ext4_filemap_fault+0x82/0xad
[  693.903328]  __do_fault+0x100/0x6b0
[  693.906981]  ? pmd_devmap_trans_unstable+0x220/0x220
[  693.912095]  ? mark_held_locks+0x130/0x130
[  693.916336]  ? mark_held_locks+0x130/0x130
[  693.920573]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  693.926111]  ? rcu_pm_notify+0xc0/0xc0
[  693.930016]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  693.935563]  __handle_mm_fault+0x3ea0/0x5be0
[  693.939983]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  693.944826]  ? _raw_spin_unlock_irq+0x27/0x80
[  693.949322]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  693.953915]  ? trace_hardirqs_on+0xbd/0x310
[  693.958266]  ? kasan_check_read+0x11/0x20
[  693.962427]  ? __set_current_blocked+0xdf/0x120
[  693.967100]  ? trace_hardirqs_off_caller+0x310/0x310
[  693.972217]  ? zap_class+0x640/0x640
[  693.975929]  ? zap_class+0x640/0x640
[  693.979651]  ? find_held_lock+0x36/0x1c0
[  693.983724]  ? handle_mm_fault+0x42a/0xc70
[  693.987971]  ? lock_downgrade+0x900/0x900
[  693.992119]  ? check_preemption_disabled+0x48/0x280
[  693.997177]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  694.002137]  ? kasan_check_read+0x11/0x20
[  694.006289]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  694.011570]  ? rcu_softirq_qs+0x20/0x20
[  694.015543]  ? trace_hardirqs_off_caller+0x310/0x310
[  694.020653]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  694.026211]  ? check_preemption_disabled+0x48/0x280
[  694.031250]  handle_mm_fault+0x54f/0xc70
[  694.035332]  ? __handle_mm_fault+0x5be0/0x5be0
[  694.039924]  ? find_vma+0x34/0x190
[  694.043492]  __do_page_fault+0x5e8/0xe60
[  694.047569]  ? exit_to_usermode_loop+0x1f4/0x380
[  694.052337]  do_page_fault+0xf2/0x7e0
[  694.056159]  ? vmalloc_sync_all+0x30/0x30
[  694.060314]  ? error_entry+0x70/0xd0
[  694.064028]  ? trace_hardirqs_off_caller+0xbb/0x310
[  694.069045]  ? trace_hardirqs_on_caller+0xc0/0x310
[  694.073991]  ? syscall_return_slowpath+0x5e0/0x5e0
[  694.078920]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  694.083790]  ? trace_hardirqs_on_caller+0x310/0x310
[  694.088816]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  694.094281]  ? prepare_exit_to_usermode+0x291/0x3b0
[  694.099301]  ? page_fault+0x8/0x30
[  694.102844]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  694.107698]  ? page_fault+0x8/0x30
[  694.111264]  page_fault+0x1e/0x30
[  694.114735] RIP: 0033:0x45db60
[  694.117964] Code: Bad RIP value.
[  694.121332] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  694.126689] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  694.133955] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  694.141222] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  694.148498] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  694.155769] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  694.163056] warn_alloc_show_mem: 1 callbacks suppressed
[  694.163067] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  694.163069] Mem-Info:
[  694.163103] active_anon:42936 inactive_anon:306 isolated_anon:0
[  694.163103]  active_file:13 inactive_file:13 isolated_file:0
[  694.163103]  unevictable:0 dirty:0 writeback:0 unstable:0
[  694.163103]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  694.163103]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  694.163103]  free:13785 free_pcp:492 free_cma:0
[  694.168449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  694.175307] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  694.177699] Call Trace:
[  694.210491] 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
[  694.219859]  dump_stack+0x244/0x39d
[  694.247409] lowmem_reserve[]: 0 2818 6321 6321
[  694.249992]  ? dump_stack_print_info.cold.1+0x20/0x20
[  694.276072] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  694.279704]  warn_alloc.cold.116+0xb7/0x1bd
[  694.284267] lowmem_reserve[]: 0 0 3503 3503
[  694.289453]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  694.316578] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  694.320894]  ? lock_downgrade+0x900/0x900
[  694.325187] lowmem_reserve[]: 0 0 0 0
[  694.330028]  ? trace_hardirqs_off+0xb8/0x310
[  694.359144] 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
[  694.363303]  ? trace_hardirqs_off+0xb8/0x310
[  694.367089] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  694.371497]  __alloc_pages_slowpath+0x2651/0x2de0
[  694.384989] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  694.389415]  ? warn_alloc+0x120/0x120
[  694.404539] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  694.409393]  ? print_usage_bug+0xc0/0xc0
[  694.424572] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  694.428374]  ? warn_alloc+0x120/0x120
[  694.437189] 380 total pagecache pages
[  694.441243]  ? warn_alloc+0x120/0x120
[  694.449798] 0 pages in swap cache
[  694.453586]  ? print_usage_bug+0xc0/0xc0
[  694.457377] Swap cache stats: add 0, delete 0, find 0/0
[  694.461199]  ? print_usage_bug+0xc0/0xc0
[  694.464634] Free swap  = 0kB
[  694.468689]  ? __lock_acquire+0x62f/0x4c20
[  694.474024] Total swap = 0kB
[  694.478086]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  694.481077] 1965979 pages RAM
[  694.485319]  ? should_fail+0x22d/0xd01
[  694.488310] 0 pages HighMem/MovableOnly
[  694.493837]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  694.496918] 342854 pages reserved
[  694.500804]  ? __lock_acquire+0x62f/0x4c20
[  694.504762] 0 pages cma reserved
[  694.509871]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  694.513355] aoe: skb alloc failure
[  694.517521]  ? __lock_acquire+0x62f/0x4c20
[  694.517537]  ? should_fail+0x22d/0xd01
[  694.520962] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  694.526003]  ? find_held_lock+0x36/0x1c0
[  694.529522] syz-fuzzer cpuset=/ mems_allowed=0
[  694.533763]  ? mark_held_locks+0x130/0x130
[  694.561166]  ? mark_held_locks+0x130/0x130
[  694.565412]  ? zap_class+0x640/0x640
[  694.569169]  ? zap_class+0x640/0x640
[  694.572896]  ? print_usage_bug+0xc0/0xc0
[  694.576958]  ? do_raw_spin_unlock+0xa7/0x330
[  694.581371]  ? zap_class+0x640/0x640
[  694.585087]  ? print_usage_bug+0xc0/0xc0
[  694.589148]  ? wq_watchdog_touch+0x9c/0xfe
[  694.593387]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  694.598924]  ? check_preemption_disabled+0x48/0x280
[  694.603949]  ? __lock_is_held+0xb5/0x140
[  694.608020]  __alloc_pages_nodemask+0xad8/0xea0
[  694.612690]  ? zap_class+0x640/0x640
[  694.616437]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  694.621468]  ? find_held_lock+0x36/0x1c0
[  694.625585]  ? ____cache_alloc_node+0x1c7/0x1e0
[  694.630257]  ? lock_downgrade+0x900/0x900
[  694.634438]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  694.639999]  cache_grow_begin+0xa5/0x8c0
[  694.644062]  ? do_raw_spin_unlock+0xa7/0x330
[  694.648494]  fallback_alloc+0x204/0x2e0
[  694.652474]  ____cache_alloc_node+0x1c7/0x1e0
[  694.656972]  kmem_cache_alloc_node+0xe3/0x730
[  694.661493]  ? ipv6_get_ifaddr+0x42e/0x620
[  694.665740]  __alloc_skb+0x119/0x770
[  694.669479]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  694.674765]  ? netdev_alloc_frag+0x1f0/0x1f0
[  694.679187]  ? lock_downgrade+0x900/0x900
[  694.683347]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  694.689052]  ? refcount_sub_and_test_checked+0x203/0x310
[  694.694508]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  694.699960]  ? addrconf_rs_timer+0x690/0x690
[  694.704379]  ndisc_alloc_skb+0x144/0x340
[  694.708466]  ndisc_send_rs+0x331/0x6e0
[  694.712366]  addrconf_rs_timer+0x314/0x690
[  694.716644]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  694.720904]  call_timer_fn+0x272/0x920
[  694.724796]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  694.729035]  ? process_timeout+0x40/0x40
[  694.733105]  ? __run_timers+0x7da/0xc70
[  694.737080]  ? _raw_spin_unlock_irq+0x27/0x80
[  694.741574]  ? _raw_spin_unlock_irq+0x27/0x80
[  694.746069]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  694.750319]  ? lockdep_hardirqs_on+0x296/0x5b0
[  694.754921]  ? trace_hardirqs_on+0xbd/0x310
[  694.759247]  ? kasan_check_read+0x11/0x20
[  694.763417]  ? __run_timers+0x7da/0xc70
[  694.767390]  ? trace_hardirqs_off_caller+0x310/0x310
[  694.772515]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  694.776766]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  694.781008]  __run_timers+0x7e5/0xc70
[  694.784833]  ? timer_fixup_init+0x70/0x70
[  694.788979]  ? _raw_spin_unlock_irq+0x27/0x80
[  694.793472]  ? _raw_spin_unlock_irq+0x27/0x80
[  694.797969]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  694.802552]  ? trace_hardirqs_on+0xbd/0x310
[  694.806885]  ? kasan_check_read+0x11/0x20
[  694.811032]  ? finish_task_switch+0x1f4/0x910
[  694.815546]  ? trace_hardirqs_off_caller+0x310/0x310
[  694.820675]  ? compat_start_thread+0x80/0x80
[  694.825104]  ? pvclock_read_flags+0x160/0x160
[  694.829597]  ? __switch_to_asm+0x34/0x70
[  694.833660]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  694.839200]  ? check_preemption_disabled+0x48/0x280
[  694.844224]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  694.849769]  ? rcu_pm_notify+0xc0/0xc0
[  694.853667]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  694.859207]  ? check_preemption_disabled+0x48/0x280
[  694.864231]  run_timer_softirq+0x52/0xb0
[  694.868291]  ? rcu_read_lock_sched_held+0x14f/0x180
[  694.873311]  __do_softirq+0x308/0xb7e
[  694.877119]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  694.881880]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  694.886986]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  694.892443]  ? trace_hardirqs_on+0x310/0x310
[  694.896856]  ? schedule+0x108/0x460
[  694.900493]  ? trace_hardirqs_off+0xb8/0x310
[  694.904899]  ? smpboot_thread_fn+0x68b/0xa00
[  694.909306]  ? trace_hardirqs_on+0x310/0x310
[  694.913715]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  694.919258]  ? check_preemption_disabled+0x48/0x280
[  694.924276]  ? takeover_tasklets+0xa90/0xa90
[  694.928688]  run_ksoftirqd+0x5e/0x100
[  694.932488]  smpboot_thread_fn+0x68b/0xa00
[  694.936760]  ? sort_range+0x30/0x30
[  694.940393]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  694.945496]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  694.951035]  ? __kthread_parkme+0xfb/0x1a0
[  694.955297]  ? sort_range+0x30/0x30
[  694.958928]  kthread+0x35a/0x440
[  694.962335]  ? kthread_stop+0x900/0x900
[  694.966328]  ret_from_fork+0x3a/0x50
[  694.970079] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  694.970153] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  694.977090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  694.977099] Call Trace:
[  694.983782] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  694.992920]  <IRQ>
[  694.995515] ksoftirqd/0 cpuset=/ mems_allowed=0
[  695.005832]  dump_stack+0x244/0x39d
[  695.016230]  ? dump_stack_print_info.cold.1+0x20/0x20
[  695.021454]  warn_alloc.cold.116+0xb7/0x1bd
[  695.025791]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  695.030669]  ? lock_downgrade+0x900/0x900
[  695.034841]  ? trace_hardirqs_off+0xb8/0x310
[  695.039263]  ? trace_hardirqs_off+0xb8/0x310
[  695.043688]  __alloc_pages_slowpath+0x2651/0x2de0
[  695.048575]  ? warn_alloc+0x120/0x120
[  695.052393]  ? warn_alloc+0x120/0x120
[  695.056200]  ? warn_alloc+0x120/0x120
[  695.060002]  ? print_usage_bug+0xc0/0xc0
[  695.064092]  ? check_preemption_disabled+0x48/0x280
[  695.069114]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  695.073613]  ? print_usage_bug+0xc0/0xc0
[  695.077674]  ? kasan_check_read+0x11/0x20
[  695.081821]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  695.087116]  ? rcu_softirq_qs+0x20/0x20
[  695.091124]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  695.096679]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  695.102234]  ? should_fail+0x22d/0xd01
[  695.106125]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  695.111281]  ? __lock_acquire+0x62f/0x4c20
[  695.115532]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  695.120634]  ? __lock_acquire+0x62f/0x4c20
[  695.124864]  ? should_fail+0x22d/0xd01
[  695.128773]  ? task_prio+0x50/0x50
[  695.132328]  ? mark_held_locks+0x130/0x130
[  695.136564]  ? mark_held_locks+0x130/0x130
[  695.140813]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  695.145574]  ? lockdep_hardirqs_on+0x296/0x5b0
[  695.150175]  ? retint_kernel+0x2d/0x2d
[  695.154094]  ? zap_class+0x640/0x640
[  695.157806]  ? print_usage_bug+0xc0/0xc0
[  695.161878]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  695.167333]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  695.172903]  ? check_preemption_disabled+0x48/0x280
[  695.177940]  ? __lock_is_held+0xb5/0x140
[  695.182014]  __alloc_pages_nodemask+0xad8/0xea0
[  695.186696]  ? zap_class+0x640/0x640
[  695.190428]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  695.195470]  ? find_held_lock+0x36/0x1c0
[  695.199543]  ? ____cache_alloc_node+0x1c7/0x1e0
[  695.204210]  ? lock_downgrade+0x900/0x900
[  695.208386]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  695.213932]  cache_grow_begin+0xa5/0x8c0
[  695.218001]  ? do_raw_spin_unlock+0xa7/0x330
[  695.222443]  fallback_alloc+0x204/0x2e0
[  695.226421]  ____cache_alloc_node+0x1c7/0x1e0
[  695.230920]  kmem_cache_alloc_node+0xe3/0x730
[  695.235419]  ? ipv6_get_ifaddr+0x42e/0x620
[  695.239675]  __alloc_skb+0x119/0x770
[  695.243408]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  695.248768]  ? netdev_alloc_frag+0x1f0/0x1f0
[  695.253174]  ? lock_downgrade+0x900/0x900
[  695.257343]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  695.262898]  ? refcount_sub_and_test_checked+0x203/0x310
[  695.268359]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  695.273814]  ? addrconf_rs_timer+0x690/0x690
[  695.278246]  ndisc_alloc_skb+0x144/0x340
[  695.282318]  ndisc_send_rs+0x331/0x6e0
[  695.286213]  addrconf_rs_timer+0x314/0x690
[  695.290483]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  695.294748]  call_timer_fn+0x272/0x920
[  695.298659]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  695.302925]  ? process_timeout+0x40/0x40
[  695.306996]  ? mark_held_locks+0xc7/0x130
[  695.311156]  ? _raw_spin_unlock_irq+0x27/0x80
[  695.315659]  ? _raw_spin_unlock_irq+0x27/0x80
[  695.320169]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  695.324404]  ? lockdep_hardirqs_on+0x296/0x5b0
[  695.328987]  ? trace_hardirqs_on+0xbd/0x310
[  695.333307]  ? kasan_check_read+0x11/0x20
[  695.337453]  ? __run_timers+0x7da/0xc70
[  695.341428]  ? trace_hardirqs_off_caller+0x310/0x310
[  695.346542]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  695.351391]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  695.355637]  __run_timers+0x7e5/0xc70
[  695.359470]  ? timer_fixup_init+0x70/0x70
[  695.363625]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  695.368644]  ? zap_class+0x640/0x640
[  695.372384]  ? print_usage_bug+0xc0/0xc0
[  695.376450]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  695.381668]  ? find_held_lock+0x36/0x1c0
[  695.385743]  ? zap_class+0x640/0x640
[  695.389471]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  695.395013]  ? check_preemption_disabled+0x48/0x280
[  695.400041]  ? __lock_is_held+0xb5/0x140
[  695.404103]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  695.409648]  ? check_preemption_disabled+0x48/0x280
[  695.414680]  run_timer_softirq+0x52/0xb0
[  695.418746]  ? rcu_read_lock_sched_held+0x14f/0x180
[  695.423800]  __do_softirq+0x308/0xb7e
[  695.427613]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  695.432114]  ? lock_downgrade+0x900/0x900
[  695.436269]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  695.441419]  ? pvclock_read_flags+0x160/0x160
[  695.445930]  ? lapic_next_event+0x5a/0x90
[  695.450084]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  695.455631]  ? kvm_clock_read+0x18/0x30
[  695.459616]  ? kvm_sched_clock_read+0x9/0x20
[  695.464028]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  695.469588]  ? check_preemption_disabled+0x48/0x280
[  695.474613]  irq_exit+0x17f/0x1c0
[  695.478088]  smp_apic_timer_interrupt+0x1cb/0x760
[  695.482932]  ? smp_reschedule_interrupt+0x109/0x650
[  695.487966]  ? smp_call_function_single_interrupt+0x650/0x650
[  695.493856]  ? interrupt_entry+0xb5/0xc0
[  695.497935]  ? trace_hardirqs_off_caller+0xbb/0x310
[  695.502951]  ? trace_hardirqs_off_caller+0xbb/0x310
[  695.507969]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  695.512825]  ? trace_hardirqs_on_caller+0x310/0x310
[  695.517844]  ? trace_hardirqs_on_caller+0x310/0x310
[  695.522863]  ? task_prio+0x50/0x50
[  695.526419]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  695.531956]  ? check_preemption_disabled+0x48/0x280
[  695.536979]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  695.541843]  apic_timer_interrupt+0xf/0x20
[  695.546085]  </IRQ>
[  695.548336] RIP: 0010:dump_stack+0x358/0x39d
[  695.552750] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  695.571776] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  695.579481] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  695.586762] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  695.594076] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  695.601340] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  695.608609] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  695.616079]  ? dump_stack+0x34f/0x39d
[  695.619902]  ? dump_stack_print_info.cold.1+0x20/0x20
[  695.625096]  ? mark_held_locks+0x130/0x130
[  695.629344]  ? mark_held_locks+0x130/0x130
[  695.633591]  dump_header+0x27b/0xf72
[  695.637324]  ? pagefault_out_of_memory+0x197/0x197
[  695.642260]  ? __lock_acquire+0x62f/0x4c20
[  695.646547]  ? percpu_ref_get_many+0x240/0x240
[  695.651132]  ? print_usage_bug+0xc0/0xc0
[  695.655199]  ? zap_class+0x640/0x640
[  695.658916]  ? print_usage_bug+0xc0/0xc0
[  695.662976]  ? print_usage_bug+0xc0/0xc0
[  695.667042]  ? zap_class+0x640/0x640
[  695.670772]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  695.676324]  ? find_held_lock+0x36/0x1c0
[  695.680397]  ? mark_held_locks+0xc7/0x130
[  695.684552]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  695.689652]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  695.694793]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  695.699405]  ? trace_hardirqs_on+0xbd/0x310
[  695.703726]  ? kasan_check_read+0x11/0x20
[  695.707879]  ? ___ratelimit+0x3b4/0x672
[  695.711854]  ? trace_hardirqs_off_caller+0x310/0x310
[  695.716963]  ? trace_hardirqs_on+0x310/0x310
[  695.721401]  ? lock_downgrade+0x900/0x900
[  695.725553]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  695.730657]  ? ___ratelimit+0x3b9/0x672
[  695.734633]  ? idr_get_free+0xf70/0xf70
[  695.738606]  ? find_held_lock+0x36/0x1c0
[  695.742680]  oom_kill_process.cold.27+0x10/0x903
[  695.747438]  ? zap_class+0x640/0x640
[  695.751181]  ? check_preemption_disabled+0x48/0x280
[  695.756212]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  695.761140]  ? kasan_check_read+0x11/0x20
[  695.765305]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  695.770608]  ? oom_evaluate_task+0x540/0x540
[  695.775020]  ? find_held_lock+0x36/0x1c0
[  695.779089]  ? out_of_memory+0x974/0x1430
[  695.783240]  ? lock_downgrade+0x900/0x900
[  695.787390]  ? check_preemption_disabled+0x48/0x280
[  695.792405]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  695.797331]  ? kasan_check_read+0x11/0x20
[  695.801475]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  695.806760]  ? rcu_softirq_qs+0x20/0x20
[  695.810740]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  695.816296]  ? oom_evaluate_task+0x302/0x540
[  695.820710]  out_of_memory+0xa84/0x1430
[  695.824692]  ? oom_killer_disable+0x3a0/0x3a0
[  695.829189]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  695.834135]  ? __ww_mutex_check_waiters+0x160/0x160
[  695.839161]  __alloc_pages_slowpath+0x232c/0x2de0
[  695.844036]  ? warn_alloc+0x120/0x120
[  695.847836]  ? mark_held_locks+0x130/0x130
[  695.852074]  ? find_get_entry+0xaae/0x1120
[  695.856318]  ? filemap_map_pages+0x1a20/0x1a20
[  695.860915]  ? zap_class+0x640/0x640
[  695.864638]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  695.870204]  ? check_preemption_disabled+0x48/0x280
[  695.875217]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  695.880762]  ? should_fail+0x22d/0xd01
[  695.884669]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  695.889809]  ? zap_class+0x640/0x640
[  695.893548]  ? __lock_is_held+0xb5/0x140
[  695.897616]  ? mark_held_locks+0x130/0x130
[  695.901855]  ? lock_release+0xa00/0xa00
[  695.905834]  ? perf_trace_sched_process_exec+0x860/0x860
[  695.911285]  ? xa_load+0x2ba/0x460
[  695.914839]  ? lock_downgrade+0x900/0x900
[  695.918991]  ? __might_sleep+0x95/0x190
[  695.922972]  __alloc_pages_nodemask+0xad8/0xea0
[  695.927646]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  695.932677]  ? __page_cache_alloc+0x191/0x5c0
[  695.937184]  ? xa_load+0x2e1/0x460
[  695.940721]  ? xa_clear_mark+0x40/0x40
[  695.944616]  ? zap_class+0x640/0x640
[  695.948335]  ? zap_class+0x640/0x640
[  695.952048]  ? zap_class+0x640/0x640
[  695.955777]  ? __do_page_cache_readahead+0x663/0x810
[  695.960906]  ? find_held_lock+0x36/0x1c0
[  695.964975]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  695.970517]  alloc_pages_current+0x173/0x350
[  695.974930]  __page_cache_alloc+0x38c/0x5c0
[  695.979254]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  695.984199]  ? kasan_check_read+0x11/0x20
[  695.988379]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  695.993660]  ? generic_perform_write+0x6a0/0x6a0
[  695.998432]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  696.003971]  ? check_preemption_disabled+0x48/0x280
[  696.009004]  filemap_fault+0x1595/0x25f0
[  696.013079]  ? __lock_page_or_retry+0xa00/0xa00
[  696.017748]  ? mark_held_locks+0x130/0x130
[  696.022020]  ? filemap_map_pages+0xd6b/0x1a20
[  696.026551]  ? lock_downgrade+0x900/0x900
[  696.030700]  ? check_preemption_disabled+0x48/0x280
[  696.035718]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  696.040646]  ? kasan_check_read+0x11/0x20
[  696.044811]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  696.050095]  ? rcu_softirq_qs+0x20/0x20
[  696.054183]  ? filemap_map_pages+0xd92/0x1a20
[  696.058684]  ? print_usage_bug+0xc0/0xc0
[  696.062777]  ? find_get_entries_tag+0x1400/0x1400
[  696.067634]  ? __kasan_slab_free+0x102/0x150
[  696.072052]  ? kasan_slab_free+0xe/0x10
[  696.076026]  ? kmem_cache_free+0x83/0x290
[  696.080172]  ? __sigqueue_free.part.29+0x74/0x90
[  696.084958]  ? lock_acquire+0x1ed/0x520
[  696.088931]  ? ext4_filemap_fault+0x7a/0xad
[  696.093272]  ? lock_release+0xa00/0xa00
[  696.097266]  ? perf_trace_sched_process_exec+0x860/0x860
[  696.102720]  ? print_usage_bug+0xc0/0xc0
[  696.106792]  ? print_usage_bug+0xc0/0xc0
[  696.110890]  ? down_read+0x8d/0x120
[  696.114515]  ? ext4_filemap_fault+0x7a/0xad
[  696.118839]  ? __down_interruptible+0x700/0x700
[  696.123538]  ext4_filemap_fault+0x82/0xad
[  696.127685]  __do_fault+0x100/0x6b0
[  696.131318]  ? pmd_devmap_trans_unstable+0x220/0x220
[  696.136433]  ? mark_held_locks+0x130/0x130
[  696.140668]  ? mark_held_locks+0x130/0x130
[  696.144910]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  696.150457]  ? rcu_pm_notify+0xc0/0xc0
[  696.154353]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  696.159896]  __handle_mm_fault+0x3ea0/0x5be0
[  696.164312]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  696.169153]  ? _raw_spin_unlock_irq+0x27/0x80
[  696.173645]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  696.178232]  ? trace_hardirqs_on+0xbd/0x310
[  696.182574]  ? kasan_check_read+0x11/0x20
[  696.186726]  ? __set_current_blocked+0xdf/0x120
[  696.191400]  ? trace_hardirqs_off_caller+0x310/0x310
[  696.196511]  ? zap_class+0x640/0x640
[  696.200223]  ? zap_class+0x640/0x640
[  696.203964]  ? find_held_lock+0x36/0x1c0
[  696.208045]  ? handle_mm_fault+0x42a/0xc70
[  696.212289]  ? lock_downgrade+0x900/0x900
[  696.216436]  ? check_preemption_disabled+0x48/0x280
[  696.221476]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  696.226407]  ? kasan_check_read+0x11/0x20
[  696.230565]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  696.235843]  ? rcu_softirq_qs+0x20/0x20
[  696.239859]  ? trace_hardirqs_off_caller+0x310/0x310
[  696.244965]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  696.250516]  ? check_preemption_disabled+0x48/0x280
[  696.255559]  handle_mm_fault+0x54f/0xc70
[  696.259620]  ? __handle_mm_fault+0x5be0/0x5be0
[  696.264204]  ? find_vma+0x34/0x190
[  696.267771]  __do_page_fault+0x5e8/0xe60
[  696.271850]  ? exit_to_usermode_loop+0x1f4/0x380
[  696.276613]  do_page_fault+0xf2/0x7e0
[  696.280441]  ? vmalloc_sync_all+0x30/0x30
[  696.284607]  ? error_entry+0x70/0xd0
[  696.288333]  ? trace_hardirqs_off_caller+0xbb/0x310
[  696.293349]  ? trace_hardirqs_on_caller+0xc0/0x310
[  696.298284]  ? syscall_return_slowpath+0x5e0/0x5e0
[  696.303243]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  696.308103]  ? trace_hardirqs_on_caller+0x310/0x310
[  696.313121]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  696.318598]  ? prepare_exit_to_usermode+0x291/0x3b0
[  696.323620]  ? page_fault+0x8/0x30
[  696.327171]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  696.332028]  ? page_fault+0x8/0x30
[  696.335585]  page_fault+0x1e/0x30
[  696.339038] RIP: 0033:0x45db60
[  696.342241] Code: Bad RIP value.
[  696.345603] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  696.350980] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  696.358278] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  696.365545] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  696.372810] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  696.380077] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  696.387362] warn_alloc_show_mem: 1 callbacks suppressed
[  696.387373] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  696.387375] Mem-Info:
[  696.387406] active_anon:42936 inactive_anon:306 isolated_anon:0
[  696.387406]  active_file:13 inactive_file:13 isolated_file:0
[  696.387406]  unevictable:0 dirty:0 writeback:0 unstable:0
[  696.387406]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  696.387406]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  696.387406]  free:13785 free_pcp:492 free_cma:0
[  696.392743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  696.399600] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  696.402174] Call Trace:
[  696.434948] 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
[  696.444303]  dump_stack+0x244/0x39d
[  696.471867] lowmem_reserve[]: 0 2818 6321 6321
[  696.474455]  ? dump_stack_print_info.cold.1+0x20/0x20
[  696.500540] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  696.504187]  warn_alloc.cold.116+0xb7/0x1bd
[  696.508727] lowmem_reserve[]: 0 0 3503 3503
[  696.513945]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  696.541083] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  696.545398]  ? lock_downgrade+0x900/0x900
[  696.549690] lowmem_reserve[]: 0 0 0 0
[  696.554959]  ? trace_hardirqs_off+0xb8/0x310
[  696.584079] 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
[  696.588235]  ? trace_hardirqs_off+0xb8/0x310
[  696.592024] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  696.596429]  __alloc_pages_slowpath+0x2651/0x2de0
[  696.609921] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  696.614347]  ? warn_alloc+0x120/0x120
[  696.629492] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  696.634330]  ? print_usage_bug+0xc0/0xc0
[  696.649483] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  696.653281]  ? warn_alloc+0x120/0x120
[  696.662099] 380 total pagecache pages
[  696.666151]  ? warn_alloc+0x120/0x120
[  696.674704] 0 pages in swap cache
[  696.678492]  ? print_usage_bug+0xc0/0xc0
[  696.682271] Swap cache stats: add 0, delete 0, find 0/0
[  696.686200]  ? print_usage_bug+0xc0/0xc0
[  696.686210]  ? print_usage_bug+0xc0/0xc0
[  696.686219]  ? __lock_acquire+0x62f/0x4c20
[  696.686231]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  696.686241]  ? should_fail+0x22d/0xd01
[  696.686249]  ? __lock_acquire+0x62f/0x4c20
[  696.686259]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  696.686267]  ? __lock_acquire+0x62f/0x4c20
[  696.686280]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  696.686292]  ? __lock_acquire+0x62f/0x4c20
[  696.686308]  ? should_fail+0x22d/0xd01
[  696.689742] Free swap  = 0kB
[  696.693809]  ? mark_held_locks+0x130/0x130
[  696.699141] Total swap = 0kB
[  696.703190]  ? mark_held_locks+0x130/0x130
[  696.707227] 1965979 pages RAM
[  696.711455]  ? zap_class+0x640/0x640
[  696.716970] 0 pages HighMem/MovableOnly
[  696.720849]  ? mark_held_locks+0xc7/0x130
[  696.725059] 342854 pages reserved
[  696.730151]  ? do_raw_spin_unlock+0xa7/0x330
[  696.734362] 0 pages cma reserved
[  696.739461]  ? zap_class+0x640/0x640
[  696.743761] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  696.747585]  ? print_usage_bug+0xc0/0xc0
[  696.750678] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  696.754821]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  696.757832] syz-fuzzer cpuset=/ mems_allowed=0
[  696.762060]  ? check_preemption_disabled+0x48/0x280
[  696.827643]  ? __lock_is_held+0xb5/0x140
[  696.831712]  __alloc_pages_nodemask+0xad8/0xea0
[  696.836381]  ? zap_class+0x640/0x640
[  696.840097]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  696.845127]  ? find_held_lock+0x36/0x1c0
[  696.849202]  ? ____cache_alloc_node+0x1c7/0x1e0
[  696.853872]  ? lock_downgrade+0x900/0x900
[  696.858032]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  696.863617]  cache_grow_begin+0xa5/0x8c0
[  696.867692]  ? do_raw_spin_unlock+0xa7/0x330
[  696.872107]  fallback_alloc+0x204/0x2e0
[  696.876106]  ____cache_alloc_node+0x1c7/0x1e0
[  696.880609]  kmem_cache_alloc_node+0xe3/0x730
[  696.885103]  ? ipv6_get_ifaddr+0x42e/0x620
[  696.889345]  __alloc_skb+0x119/0x770
[  696.893059]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  696.898338]  ? netdev_alloc_frag+0x1f0/0x1f0
[  696.902749]  ? lock_downgrade+0x900/0x900
[  696.906921]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  696.912464]  ? refcount_sub_and_test_checked+0x203/0x310
[  696.917920]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  696.923369]  ? addrconf_rs_timer+0x690/0x690
[  696.927809]  ndisc_alloc_skb+0x144/0x340
[  696.931877]  ndisc_send_rs+0x331/0x6e0
[  696.935787]  addrconf_rs_timer+0x314/0x690
[  696.940058]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  696.944308]  call_timer_fn+0x272/0x920
[  696.948196]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  696.952435]  ? process_timeout+0x40/0x40
[  696.956502]  ? __run_timers+0x7da/0xc70
[  696.960479]  ? _raw_spin_unlock_irq+0x27/0x80
[  696.964975]  ? _raw_spin_unlock_irq+0x27/0x80
[  696.969469]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  696.973714]  ? lockdep_hardirqs_on+0x296/0x5b0
[  696.978300]  ? trace_hardirqs_on+0xbd/0x310
[  696.982622]  ? kasan_check_read+0x11/0x20
[  696.986779]  ? __run_timers+0x7da/0xc70
[  696.990764]  ? trace_hardirqs_off_caller+0x310/0x310
[  696.995888]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  697.000129]  __run_timers+0x7e5/0xc70
[  697.003946]  ? timer_fixup_init+0x70/0x70
[  697.008098]  ? _raw_spin_unlock_irq+0x27/0x80
[  697.012597]  ? _raw_spin_unlock_irq+0x27/0x80
[  697.017092]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  697.021727]  ? trace_hardirqs_on+0xbd/0x310
[  697.026090]  ? kasan_check_read+0x11/0x20
[  697.030239]  ? finish_task_switch+0x1f4/0x910
[  697.034733]  ? trace_hardirqs_off_caller+0x310/0x310
[  697.039851]  ? compat_start_thread+0x80/0x80
[  697.044283]  ? pvclock_read_flags+0x160/0x160
[  697.048788]  ? __switch_to_asm+0x34/0x70
[  697.052854]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  697.058397]  ? check_preemption_disabled+0x48/0x280
[  697.063433]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  697.068971]  ? rcu_pm_notify+0xc0/0xc0
[  697.072861]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  697.078401]  ? check_preemption_disabled+0x48/0x280
[  697.083423]  run_timer_softirq+0x52/0xb0
[  697.087482]  ? rcu_read_lock_sched_held+0x14f/0x180
[  697.092504]  __do_softirq+0x308/0xb7e
[  697.096310]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  697.101071]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  697.106176]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  697.111629]  ? trace_hardirqs_on+0x310/0x310
[  697.116047]  ? schedule+0x108/0x460
[  697.119703]  ? trace_hardirqs_off+0xb8/0x310
[  697.124114]  ? smpboot_thread_fn+0x68b/0xa00
[  697.128523]  ? trace_hardirqs_on+0x310/0x310
[  697.132943]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  697.138484]  ? check_preemption_disabled+0x48/0x280
[  697.143500]  ? takeover_tasklets+0xa90/0xa90
[  697.147910]  run_ksoftirqd+0x5e/0x100
[  697.151714]  smpboot_thread_fn+0x68b/0xa00
[  697.155955]  ? sort_range+0x30/0x30
[  697.159582]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  697.164682]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  697.170218]  ? __kthread_parkme+0xfb/0x1a0
[  697.174458]  ? sort_range+0x30/0x30
[  697.178085]  kthread+0x35a/0x440
[  697.181470]  ? kthread_stop+0x900/0x900
[  697.185452]  ret_from_fork+0x3a/0x50
[  697.189192] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  697.189282] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  697.196223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  697.196231] Call Trace:
[  697.202840] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  697.212054]  <IRQ>
[  697.214624] ksoftirqd/0 cpuset=/ mems_allowed=0
[  697.224946]  dump_stack+0x244/0x39d
[  697.235356]  ? dump_stack_print_info.cold.1+0x20/0x20
[  697.240558]  warn_alloc.cold.116+0xb7/0x1bd
[  697.244882]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  697.249726]  ? lock_downgrade+0x900/0x900
[  697.253907]  ? trace_hardirqs_off+0xb8/0x310
[  697.258325]  ? trace_hardirqs_off+0xb8/0x310
[  697.262745]  __alloc_pages_slowpath+0x2651/0x2de0
[  697.267628]  ? warn_alloc+0x120/0x120
[  697.271436]  ? print_usage_bug+0xc0/0xc0
[  697.275499]  ? warn_alloc+0x120/0x120
[  697.279307]  ? warn_alloc+0x120/0x120
[  697.283125]  ? print_usage_bug+0xc0/0xc0
[  697.287189]  ? kvm_clock_read+0x18/0x30
[  697.291178]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  697.296193]  ? print_usage_bug+0xc0/0xc0
[  697.300256]  ? __lock_acquire+0x62f/0x4c20
[  697.304503]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  697.310082]  ? should_fail+0x22d/0xd01
[  697.313965]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  697.319245]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  697.324352]  ? __lock_acquire+0x62f/0x4c20
[  697.328589]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  697.333704]  ? __lock_acquire+0x62f/0x4c20
[  697.337947]  ? should_fail+0x22d/0xd01
[  697.341845]  ? rcu_irq_exit+0x1a2/0x390
[  697.345833]  ? mark_held_locks+0x130/0x130
[  697.350107]  ? mark_held_locks+0x130/0x130
[  697.354351]  ? mark_held_locks+0xc7/0x130
[  697.358501]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  697.363519]  ? zap_class+0x640/0x640
[  697.367245]  ? print_usage_bug+0xc0/0xc0
[  697.371315]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  697.376857]  ? check_preemption_disabled+0x48/0x280
[  697.381901]  ? __lock_is_held+0xb5/0x140
[  697.385970]  __alloc_pages_nodemask+0xad8/0xea0
[  697.390643]  ? zap_class+0x640/0x640
[  697.394360]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  697.399387]  ? find_held_lock+0x36/0x1c0
[  697.403480]  ? ____cache_alloc_node+0x1c7/0x1e0
[  697.408165]  ? lock_downgrade+0x900/0x900
[  697.412320]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  697.417883]  cache_grow_begin+0xa5/0x8c0
[  697.421963]  ? do_raw_spin_unlock+0xa7/0x330
[  697.426381]  fallback_alloc+0x204/0x2e0
[  697.430364]  ____cache_alloc_node+0x1c7/0x1e0
[  697.434866]  kmem_cache_alloc_node+0xe3/0x730
[  697.439383]  ? ipv6_get_ifaddr+0x42e/0x620
[  697.443633]  __alloc_skb+0x119/0x770
[  697.447350]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  697.452645]  ? netdev_alloc_frag+0x1f0/0x1f0
[  697.457067]  ? lock_downgrade+0x900/0x900
[  697.461243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  697.466800]  ? refcount_sub_and_test_checked+0x203/0x310
[  697.472258]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  697.477713]  ? addrconf_rs_timer+0x690/0x690
[  697.482136]  ndisc_alloc_skb+0x144/0x340
[  697.486205]  ndisc_send_rs+0x331/0x6e0
[  697.490131]  addrconf_rs_timer+0x314/0x690
[  697.494375]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  697.498622]  call_timer_fn+0x272/0x920
[  697.502509]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  697.506746]  ? process_timeout+0x40/0x40
[  697.510829]  ? mark_held_locks+0xc7/0x130
[  697.514978]  ? _raw_spin_unlock_irq+0x27/0x80
[  697.519478]  ? _raw_spin_unlock_irq+0x27/0x80
[  697.523973]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  697.528211]  ? lockdep_hardirqs_on+0x296/0x5b0
[  697.532797]  ? trace_hardirqs_on+0xbd/0x310
[  697.537123]  ? kasan_check_read+0x11/0x20
[  697.541268]  ? __run_timers+0x7da/0xc70
[  697.545263]  ? trace_hardirqs_off_caller+0x310/0x310
[  697.550373]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  697.554613]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  697.558846]  __run_timers+0x7e5/0xc70
[  697.562674]  ? timer_fixup_init+0x70/0x70
[  697.566875]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  697.571894]  ? zap_class+0x640/0x640
[  697.575613]  ? print_usage_bug+0xc0/0xc0
[  697.579678]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  697.584879]  ? find_held_lock+0x36/0x1c0
[  697.588947]  ? zap_class+0x640/0x640
[  697.592667]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  697.598208]  ? check_preemption_disabled+0x48/0x280
[  697.603252]  ? __lock_is_held+0xb5/0x140
[  697.607322]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  697.612866]  ? check_preemption_disabled+0x48/0x280
[  697.617888]  run_timer_softirq+0x52/0xb0
[  697.621952]  ? rcu_read_lock_sched_held+0x14f/0x180
[  697.626982]  __do_softirq+0x308/0xb7e
[  697.630796]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  697.635305]  ? lock_downgrade+0x900/0x900
[  697.639463]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  697.644594]  ? pvclock_read_flags+0x160/0x160
[  697.649093]  ? lapic_next_event+0x5a/0x90
[  697.653258]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  697.658806]  ? kvm_clock_read+0x18/0x30
[  697.662795]  ? kvm_sched_clock_read+0x9/0x20
[  697.667208]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  697.672749]  ? check_preemption_disabled+0x48/0x280
[  697.677801]  irq_exit+0x17f/0x1c0
[  697.681263]  smp_apic_timer_interrupt+0x1cb/0x760
[  697.686112]  ? smp_reschedule_interrupt+0x109/0x650
[  697.691126]  ? smp_call_function_single_interrupt+0x650/0x650
[  697.697009]  ? interrupt_entry+0xb5/0xc0
[  697.701105]  ? trace_hardirqs_off_caller+0xbb/0x310
[  697.706132]  ? trace_hardirqs_off_caller+0xbb/0x310
[  697.711151]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  697.716008]  ? trace_hardirqs_on_caller+0x310/0x310
[  697.721026]  ? trace_hardirqs_on_caller+0x310/0x310
[  697.726056]  ? task_prio+0x50/0x50
[  697.729597]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  697.735165]  ? check_preemption_disabled+0x48/0x280
[  697.740187]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  697.745039]  apic_timer_interrupt+0xf/0x20
[  697.749280]  </IRQ>
[  697.751520] RIP: 0010:dump_stack+0x358/0x39d
[  697.755928] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  697.774824] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  697.782530] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  697.789794] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  697.797060] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  697.804345] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  697.811608] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  697.818897]  ? dump_stack+0x34f/0x39d
[  697.822727]  ? dump_stack_print_info.cold.1+0x20/0x20
[  697.827929]  ? mark_held_locks+0x130/0x130
[  697.832163]  ? mark_held_locks+0x130/0x130
[  697.836403]  dump_header+0x27b/0xf72
[  697.840142]  ? pagefault_out_of_memory+0x197/0x197
[  697.845082]  ? __lock_acquire+0x62f/0x4c20
[  697.849322]  ? percpu_ref_get_many+0x240/0x240
[  697.853907]  ? print_usage_bug+0xc0/0xc0
[  697.857975]  ? zap_class+0x640/0x640
[  697.861709]  ? print_usage_bug+0xc0/0xc0
[  697.865778]  ? print_usage_bug+0xc0/0xc0
[  697.869855]  ? zap_class+0x640/0x640
[  697.873578]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  697.879123]  ? find_held_lock+0x36/0x1c0
[  697.883196]  ? mark_held_locks+0xc7/0x130
[  697.887363]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  697.892467]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  697.897595]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  697.902184]  ? trace_hardirqs_on+0xbd/0x310
[  697.906508]  ? kasan_check_read+0x11/0x20
[  697.910654]  ? ___ratelimit+0x3b4/0x672
[  697.914632]  ? trace_hardirqs_off_caller+0x310/0x310
[  697.919740]  ? trace_hardirqs_on+0x310/0x310
[  697.924154]  ? lock_downgrade+0x900/0x900
[  697.928309]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  697.933586]  ? ___ratelimit+0x3b9/0x672
[  697.937561]  ? idr_get_free+0xf70/0xf70
[  697.941551]  ? find_held_lock+0x36/0x1c0
[  697.945625]  oom_kill_process.cold.27+0x10/0x903
[  697.950385]  ? zap_class+0x640/0x640
[  697.954103]  ? check_preemption_disabled+0x48/0x280
[  697.959127]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  697.964054]  ? kasan_check_read+0x11/0x20
[  697.968202]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  697.973481]  ? oom_evaluate_task+0x540/0x540
[  697.977892]  ? find_held_lock+0x36/0x1c0
[  697.981976]  ? out_of_memory+0x974/0x1430
[  697.986126]  ? lock_downgrade+0x900/0x900
[  697.990295]  ? check_preemption_disabled+0x48/0x280
[  697.995329]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  698.000270]  ? kasan_check_read+0x11/0x20
[  698.004465]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  698.009748]  ? rcu_softirq_qs+0x20/0x20
[  698.013777]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  698.019333]  ? oom_evaluate_task+0x302/0x540
[  698.023768]  out_of_memory+0xa84/0x1430
[  698.027775]  ? oom_killer_disable+0x3a0/0x3a0
[  698.032286]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  698.037220]  ? __ww_mutex_check_waiters+0x160/0x160
[  698.042251]  __alloc_pages_slowpath+0x232c/0x2de0
[  698.047144]  ? warn_alloc+0x120/0x120
[  698.050948]  ? mark_held_locks+0x130/0x130
[  698.055188]  ? find_get_entry+0xaae/0x1120
[  698.059444]  ? filemap_map_pages+0x1a20/0x1a20
[  698.064050]  ? zap_class+0x640/0x640
[  698.067788]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  698.073367]  ? check_preemption_disabled+0x48/0x280
[  698.078387]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  698.083925]  ? should_fail+0x22d/0xd01
[  698.087837]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  698.092954]  ? zap_class+0x640/0x640
[  698.096695]  ? __lock_is_held+0xb5/0x140
[  698.100775]  ? mark_held_locks+0x130/0x130
[  698.105039]  ? lock_release+0xa00/0xa00
[  698.109017]  ? perf_trace_sched_process_exec+0x860/0x860
[  698.114488]  ? xa_load+0x2ba/0x460
[  698.118031]  ? lock_downgrade+0x900/0x900
[  698.122185]  ? __might_sleep+0x95/0x190
[  698.126213]  __alloc_pages_nodemask+0xad8/0xea0
[  698.130893]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  698.135914]  ? __page_cache_alloc+0x191/0x5c0
[  698.140409]  ? xa_load+0x2e1/0x460
[  698.143948]  ? xa_clear_mark+0x40/0x40
[  698.147840]  ? zap_class+0x640/0x640
[  698.151565]  ? zap_class+0x640/0x640
[  698.155286]  ? zap_class+0x640/0x640
[  698.158999]  ? __do_page_cache_readahead+0x663/0x810
[  698.164111]  ? find_held_lock+0x36/0x1c0
[  698.168183]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  698.173741]  alloc_pages_current+0x173/0x350
[  698.178162]  __page_cache_alloc+0x38c/0x5c0
[  698.182483]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  698.187412]  ? kasan_check_read+0x11/0x20
[  698.191559]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  698.196850]  ? generic_perform_write+0x6a0/0x6a0
[  698.201620]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  698.207158]  ? check_preemption_disabled+0x48/0x280
[  698.212181]  filemap_fault+0x1595/0x25f0
[  698.216311]  ? __lock_page_or_retry+0xa00/0xa00
[  698.220986]  ? mark_held_locks+0x130/0x130
[  698.225244]  ? filemap_map_pages+0xd6b/0x1a20
[  698.229747]  ? lock_downgrade+0x900/0x900
[  698.233910]  ? check_preemption_disabled+0x48/0x280
[  698.238933]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  698.243866]  ? kasan_check_read+0x11/0x20
[  698.248012]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  698.253300]  ? rcu_softirq_qs+0x20/0x20
[  698.257294]  ? filemap_map_pages+0xd92/0x1a20
[  698.261797]  ? print_usage_bug+0xc0/0xc0
[  698.265865]  ? find_get_entries_tag+0x1400/0x1400
[  698.270706]  ? __kasan_slab_free+0x102/0x150
[  698.275138]  ? kasan_slab_free+0xe/0x10
[  698.279113]  ? kmem_cache_free+0x83/0x290
[  698.283259]  ? __sigqueue_free.part.29+0x74/0x90
[  698.288067]  ? lock_acquire+0x1ed/0x520
[  698.292043]  ? ext4_filemap_fault+0x7a/0xad
[  698.296376]  ? lock_release+0xa00/0xa00
[  698.300348]  ? perf_trace_sched_process_exec+0x860/0x860
[  698.305799]  ? print_usage_bug+0xc0/0xc0
[  698.309867]  ? print_usage_bug+0xc0/0xc0
[  698.313943]  ? down_read+0x8d/0x120
[  698.317566]  ? ext4_filemap_fault+0x7a/0xad
[  698.321887]  ? __down_interruptible+0x700/0x700
[  698.326572]  ext4_filemap_fault+0x82/0xad
[  698.330723]  __do_fault+0x100/0x6b0
[  698.334363]  ? pmd_devmap_trans_unstable+0x220/0x220
[  698.339481]  ? mark_held_locks+0x130/0x130
[  698.343722]  ? mark_held_locks+0x130/0x130
[  698.347965]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  698.353504]  ? rcu_pm_notify+0xc0/0xc0
[  698.357399]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  698.362946]  __handle_mm_fault+0x3ea0/0x5be0
[  698.367383]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  698.372230]  ? _raw_spin_unlock_irq+0x27/0x80
[  698.376728]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  698.381332]  ? trace_hardirqs_on+0xbd/0x310
[  698.385653]  ? kasan_check_read+0x11/0x20
[  698.389800]  ? __set_current_blocked+0xdf/0x120
[  698.394473]  ? trace_hardirqs_off_caller+0x310/0x310
[  698.399601]  ? zap_class+0x640/0x640
[  698.403315]  ? zap_class+0x640/0x640
[  698.407039]  ? find_held_lock+0x36/0x1c0
[  698.411114]  ? handle_mm_fault+0x42a/0xc70
[  698.415350]  ? lock_downgrade+0x900/0x900
[  698.419500]  ? check_preemption_disabled+0x48/0x280
[  698.424519]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  698.429451]  ? kasan_check_read+0x11/0x20
[  698.433600]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  698.438876]  ? rcu_softirq_qs+0x20/0x20
[  698.442851]  ? trace_hardirqs_off_caller+0x310/0x310
[  698.447965]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  698.453507]  ? check_preemption_disabled+0x48/0x280
[  698.458532]  handle_mm_fault+0x54f/0xc70
[  698.462598]  ? __handle_mm_fault+0x5be0/0x5be0
[  698.467190]  ? find_vma+0x34/0x190
[  698.470763]  __do_page_fault+0x5e8/0xe60
[  698.474846]  ? exit_to_usermode_loop+0x1f4/0x380
[  698.479624]  do_page_fault+0xf2/0x7e0
[  698.483426]  ? vmalloc_sync_all+0x30/0x30
[  698.487577]  ? error_entry+0x70/0xd0
[  698.491300]  ? trace_hardirqs_off_caller+0xbb/0x310
[  698.496317]  ? trace_hardirqs_on_caller+0xc0/0x310
[  698.501246]  ? syscall_return_slowpath+0x5e0/0x5e0
[  698.506178]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  698.511021]  ? trace_hardirqs_on_caller+0x310/0x310
[  698.516038]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  698.521492]  ? prepare_exit_to_usermode+0x291/0x3b0
[  698.526525]  ? page_fault+0x8/0x30
[  698.530073]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  698.534922]  ? page_fault+0x8/0x30
[  698.538463]  page_fault+0x1e/0x30
[  698.541918] RIP: 0033:0x45db60
[  698.545137] Code: Bad RIP value.
[  698.548496] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  698.554116] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  698.561384] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  698.568665] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  698.575963] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  698.583236] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  698.590540] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  698.590545] warn_alloc_show_mem: 1 callbacks suppressed
[  698.590553] Mem-Info:
[  698.597400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  698.602777] active_anon:42936 inactive_anon:306 isolated_anon:0
[  698.602777]  active_file:13 inactive_file:13 isolated_file:0
[  698.602777]  unevictable:0 dirty:0 writeback:0 unstable:0
[  698.602777]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  698.602777]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  698.602777]  free:13785 free_pcp:492 free_cma:0
[  698.605153] Call Trace:
[  698.614546] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  698.647355]  dump_stack+0x244/0x39d
[  698.649910] 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
[  698.677510]  ? dump_stack_print_info.cold.1+0x20/0x20
[  698.681115] lowmem_reserve[]: 0 2818 6321 6321
[  698.707353]  warn_alloc.cold.116+0xb7/0x1bd
[  698.712510] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  698.717083]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  698.721380] lowmem_reserve[]: 0 0 3503 3503
[  698.748527]  ? lock_downgrade+0x900/0x900
[  698.753344] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  698.757678]  ? trace_hardirqs_off+0xb8/0x310
[  698.761812] lowmem_reserve[]: 0 0 0 0
[  698.790959]  ? trace_hardirqs_off+0xb8/0x310
[  698.795341] 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
[  698.799138]  __alloc_pages_slowpath+0x2651/0x2de0
[  698.803538] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  698.817080]  ? warn_alloc+0x120/0x120
[  698.821873] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  698.837047]  ? print_usage_bug+0xc0/0xc0
[  698.840845] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  698.856004]  ? warn_alloc+0x120/0x120
[  698.860058] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  698.868888]  ? warn_alloc+0x120/0x120
[  698.872661] 380 total pagecache pages
[  698.881230]  ? print_usage_bug+0xc0/0xc0
[  698.885016] 0 pages in swap cache
[  698.888803]  ? print_usage_bug+0xc0/0xc0
[  698.892842] Swap cache stats: add 0, delete 0, find 0/0
[  698.896290]  ? __lock_acquire+0x62f/0x4c20
[  698.900355] Free swap  = 0kB
[  698.905714]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  698.909935] Total swap = 0kB
[  698.912951]  ? should_fail+0x22d/0xd01
[  698.918458] 1965979 pages RAM
[  698.921468]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  698.925341] 0 pages HighMem/MovableOnly
[  698.928439]  ? __lock_acquire+0x62f/0x4c20
[  698.933519] 342854 pages reserved
[  698.937501]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  698.941707] 0 pages cma reserved
[  698.945154]  ? __lock_acquire+0x62f/0x4c20
[  698.950335] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  698.953621]  ? should_fail+0x22d/0xd01
[  698.953636]  ? find_held_lock+0x36/0x1c0
[  698.957910] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  698.964339]  ? mark_held_locks+0x130/0x130
[  698.968199] syz-fuzzer cpuset=/ mems_allowed=0
[  698.972256]  ? mark_held_locks+0x130/0x130
[  698.995509]  ? zap_class+0x640/0x640
[  698.999228]  ? mark_held_locks+0xc7/0x130
[  699.003374]  ? do_raw_spin_unlock+0xa7/0x330
[  699.007799]  ? zap_class+0x640/0x640
[  699.011606]  ? print_usage_bug+0xc0/0xc0
[  699.015676]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  699.021214]  ? check_preemption_disabled+0x48/0x280
[  699.026243]  ? __lock_is_held+0xb5/0x140
[  699.030323]  __alloc_pages_nodemask+0xad8/0xea0
[  699.035050]  ? zap_class+0x640/0x640
[  699.038784]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  699.043816]  ? find_held_lock+0x36/0x1c0
[  699.047891]  ? ____cache_alloc_node+0x1c7/0x1e0
[  699.052564]  ? lock_downgrade+0x900/0x900
[  699.056720]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  699.062334]  cache_grow_begin+0xa5/0x8c0
[  699.066399]  ? do_raw_spin_unlock+0xa7/0x330
[  699.070827]  fallback_alloc+0x204/0x2e0
[  699.074826]  ____cache_alloc_node+0x1c7/0x1e0
[  699.079389]  kmem_cache_alloc_node+0xe3/0x730
[  699.083912]  ? ipv6_get_ifaddr+0x42e/0x620
[  699.088172]  __alloc_skb+0x119/0x770
[  699.091888]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  699.097169]  ? netdev_alloc_frag+0x1f0/0x1f0
[  699.101574]  ? lock_downgrade+0x900/0x900
[  699.105765]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  699.111322]  ? refcount_sub_and_test_checked+0x203/0x310
[  699.116796]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  699.122268]  ? addrconf_rs_timer+0x690/0x690
[  699.126687]  ndisc_alloc_skb+0x144/0x340
[  699.130773]  ndisc_send_rs+0x331/0x6e0
[  699.134709]  addrconf_rs_timer+0x314/0x690
[  699.139006]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  699.143259]  call_timer_fn+0x272/0x920
[  699.147143]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  699.151378]  ? process_timeout+0x40/0x40
[  699.155459]  ? __run_timers+0x7da/0xc70
[  699.159434]  ? _raw_spin_unlock_irq+0x27/0x80
[  699.163928]  ? _raw_spin_unlock_irq+0x27/0x80
[  699.168423]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  699.172686]  ? lockdep_hardirqs_on+0x296/0x5b0
[  699.177269]  ? trace_hardirqs_on+0xbd/0x310
[  699.181595]  ? kasan_check_read+0x11/0x20
[  699.185749]  ? __run_timers+0x7da/0xc70
[  699.189796]  ? trace_hardirqs_off_caller+0x310/0x310
[  699.194912]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  699.199145]  __run_timers+0x7e5/0xc70
[  699.202955]  ? timer_fixup_init+0x70/0x70
[  699.207103]  ? _raw_spin_unlock_irq+0x27/0x80
[  699.211597]  ? _raw_spin_unlock_irq+0x27/0x80
[  699.216112]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  699.220695]  ? trace_hardirqs_on+0xbd/0x310
[  699.225024]  ? kasan_check_read+0x11/0x20
[  699.229202]  ? finish_task_switch+0x1f4/0x910
[  699.233708]  ? trace_hardirqs_off_caller+0x310/0x310
[  699.238812]  ? compat_start_thread+0x80/0x80
[  699.243249]  ? pvclock_read_flags+0x160/0x160
[  699.247766]  ? __switch_to_asm+0x34/0x70
[  699.251840]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  699.257391]  ? check_preemption_disabled+0x48/0x280
[  699.262450]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  699.267987]  ? rcu_pm_notify+0xc0/0xc0
[  699.271877]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  699.277414]  ? check_preemption_disabled+0x48/0x280
[  699.282437]  run_timer_softirq+0x52/0xb0
[  699.286498]  ? rcu_read_lock_sched_held+0x14f/0x180
[  699.291517]  __do_softirq+0x308/0xb7e
[  699.295326]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  699.300102]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  699.305217]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  699.310665]  ? trace_hardirqs_on+0x310/0x310
[  699.315080]  ? schedule+0x108/0x460
[  699.318719]  ? trace_hardirqs_off+0xb8/0x310
[  699.323133]  ? smpboot_thread_fn+0x68b/0xa00
[  699.327540]  ? trace_hardirqs_on+0x310/0x310
[  699.331963]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  699.337506]  ? check_preemption_disabled+0x48/0x280
[  699.342542]  ? takeover_tasklets+0xa90/0xa90
[  699.346967]  run_ksoftirqd+0x5e/0x100
[  699.350784]  smpboot_thread_fn+0x68b/0xa00
[  699.355023]  ? sort_range+0x30/0x30
[  699.358662]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  699.363773]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  699.369329]  ? __kthread_parkme+0xfb/0x1a0
[  699.373568]  ? sort_range+0x30/0x30
[  699.377197]  kthread+0x35a/0x440
[  699.380577]  ? kthread_stop+0x900/0x900
[  699.384565]  ret_from_fork+0x3a/0x50
[  699.388311] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  699.388385] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  699.395321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  699.395327] Call Trace:
[  699.395333]  <IRQ>
[  699.395352]  dump_stack+0x244/0x39d
[  699.395371]  ? dump_stack_print_info.cold.1+0x20/0x20
[  699.401955] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  699.411206]  warn_alloc.cold.116+0xb7/0x1bd
[  699.413765] ksoftirqd/0 cpuset=/ mems_allowed=0
[  699.415908]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  699.448806]  ? lock_downgrade+0x900/0x900
[  699.452965]  ? trace_hardirqs_off+0xb8/0x310
[  699.457378]  ? trace_hardirqs_off+0xb8/0x310
[  699.461799]  __alloc_pages_slowpath+0x2651/0x2de0
[  699.466670]  ? warn_alloc+0x120/0x120
[  699.470475]  ? print_usage_bug+0xc0/0xc0
[  699.474554]  ? warn_alloc+0x120/0x120
[  699.478359]  ? warn_alloc+0x120/0x120
[  699.482159]  ? print_usage_bug+0xc0/0xc0
[  699.486224]  ? print_usage_bug+0xc0/0xc0
[  699.490288]  ? __lock_acquire+0x62f/0x4c20
[  699.494527]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  699.500065]  ? should_fail+0x22d/0xd01
[  699.503971]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  699.509074]  ? __lock_acquire+0x62f/0x4c20
[  699.513312]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  699.518415]  ? __lock_acquire+0x62f/0x4c20
[  699.522647]  ? should_fail+0x22d/0xd01
[  699.526535]  ? find_held_lock+0x36/0x1c0
[  699.530622]  ? mark_held_locks+0x130/0x130
[  699.534861]  ? mark_held_locks+0x130/0x130
[  699.539095]  ? zap_class+0x640/0x640
[  699.542812]  ? zap_class+0x640/0x640
[  699.546530]  ? print_usage_bug+0xc0/0xc0
[  699.550590]  ? do_raw_spin_unlock+0xa7/0x330
[  699.555013]  ? zap_class+0x640/0x640
[  699.558725]  ? print_usage_bug+0xc0/0xc0
[  699.562801]  ? wq_watchdog_touch+0x9c/0xfe
[  699.567059]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  699.572633]  ? check_preemption_disabled+0x48/0x280
[  699.577658]  ? __lock_is_held+0xb5/0x140
[  699.581722]  __alloc_pages_nodemask+0xad8/0xea0
[  699.586429]  ? zap_class+0x640/0x640
[  699.590147]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  699.595173]  ? find_held_lock+0x36/0x1c0
[  699.599261]  ? ____cache_alloc_node+0x1c7/0x1e0
[  699.603935]  ? lock_downgrade+0x900/0x900
[  699.608092]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  699.613637]  cache_grow_begin+0xa5/0x8c0
[  699.617696]  ? do_raw_spin_unlock+0xa7/0x330
[  699.622112]  fallback_alloc+0x204/0x2e0
[  699.626092]  ____cache_alloc_node+0x1c7/0x1e0
[  699.630591]  kmem_cache_alloc_node+0xe3/0x730
[  699.635097]  ? ipv6_get_ifaddr+0x42e/0x620
[  699.639341]  __alloc_skb+0x119/0x770
[  699.643056]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  699.648336]  ? netdev_alloc_frag+0x1f0/0x1f0
[  699.652747]  ? lock_downgrade+0x900/0x900
[  699.656947]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  699.662489]  ? refcount_sub_and_test_checked+0x203/0x310
[  699.667943]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  699.673395]  ? addrconf_rs_timer+0x690/0x690
[  699.677817]  ndisc_alloc_skb+0x144/0x340
[  699.681890]  ndisc_send_rs+0x331/0x6e0
[  699.685833]  addrconf_rs_timer+0x314/0x690
[  699.690085]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  699.694331]  call_timer_fn+0x272/0x920
[  699.698222]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  699.702461]  ? process_timeout+0x40/0x40
[  699.706531]  ? mark_held_locks+0xc7/0x130
[  699.710680]  ? _raw_spin_unlock_irq+0x27/0x80
[  699.715186]  ? _raw_spin_unlock_irq+0x27/0x80
[  699.719699]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  699.723950]  ? lockdep_hardirqs_on+0x296/0x5b0
[  699.728547]  ? trace_hardirqs_on+0xbd/0x310
[  699.732873]  ? kasan_check_read+0x11/0x20
[  699.737023]  ? __run_timers+0x7da/0xc70
[  699.741000]  ? trace_hardirqs_off_caller+0x310/0x310
[  699.746107]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  699.750349]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  699.754584]  __run_timers+0x7e5/0xc70
[  699.758407]  ? timer_fixup_init+0x70/0x70
[  699.762559]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  699.767577]  ? zap_class+0x640/0x640
[  699.771312]  ? print_usage_bug+0xc0/0xc0
[  699.775375]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  699.780576]  ? find_held_lock+0x36/0x1c0
[  699.784646]  ? zap_class+0x640/0x640
[  699.788365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  699.793904]  ? check_preemption_disabled+0x48/0x280
[  699.798930]  ? __lock_is_held+0xb5/0x140
[  699.802992]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  699.808533]  ? check_preemption_disabled+0x48/0x280
[  699.813567]  run_timer_softirq+0x52/0xb0
[  699.817630]  ? rcu_read_lock_sched_held+0x14f/0x180
[  699.822648]  __do_softirq+0x308/0xb7e
[  699.826452]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  699.830950]  ? lock_downgrade+0x900/0x900
[  699.835104]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  699.840219]  ? pvclock_read_flags+0x160/0x160
[  699.844717]  ? lapic_next_event+0x5a/0x90
[  699.848871]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  699.854413]  ? kvm_clock_read+0x18/0x30
[  699.858388]  ? kvm_sched_clock_read+0x9/0x20
[  699.862798]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  699.868336]  ? check_preemption_disabled+0x48/0x280
[  699.873358]  irq_exit+0x17f/0x1c0
[  699.876846]  smp_apic_timer_interrupt+0x1cb/0x760
[  699.881686]  ? smp_reschedule_interrupt+0x109/0x650
[  699.886711]  ? smp_call_function_single_interrupt+0x650/0x650
[  699.892594]  ? interrupt_entry+0xb5/0xc0
[  699.896655]  ? trace_hardirqs_off_caller+0xbb/0x310
[  699.901668]  ? trace_hardirqs_off_caller+0xbb/0x310
[  699.906685]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  699.911528]  ? trace_hardirqs_on_caller+0x310/0x310
[  699.916562]  ? trace_hardirqs_on_caller+0x310/0x310
[  699.921575]  ? task_prio+0x50/0x50
[  699.925131]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  699.930679]  ? check_preemption_disabled+0x48/0x280
[  699.935701]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  699.940555]  apic_timer_interrupt+0xf/0x20
[  699.944786]  </IRQ>
[  699.947028] RIP: 0010:dump_stack+0x358/0x39d
[  699.951437] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  699.970332] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  699.978039] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  699.985324] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  699.992590] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  699.999859] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  700.007128] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  700.014421]  ? dump_stack+0x34f/0x39d
[  700.018235]  ? dump_stack_print_info.cold.1+0x20/0x20
[  700.023433]  ? mark_held_locks+0x130/0x130
[  700.027672]  ? mark_held_locks+0x130/0x130
[  700.031911]  dump_header+0x27b/0xf72
[  700.035638]  ? pagefault_out_of_memory+0x197/0x197
[  700.040578]  ? __lock_acquire+0x62f/0x4c20
[  700.044833]  ? percpu_ref_get_many+0x240/0x240
[  700.049417]  ? print_usage_bug+0xc0/0xc0
[  700.053482]  ? zap_class+0x640/0x640
[  700.057229]  ? print_usage_bug+0xc0/0xc0
[  700.061296]  ? print_usage_bug+0xc0/0xc0
[  700.065359]  ? zap_class+0x640/0x640
[  700.069080]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  700.074626]  ? find_held_lock+0x36/0x1c0
[  700.078697]  ? mark_held_locks+0xc7/0x130
[  700.082848]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  700.087952]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  700.093055]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  700.097642]  ? trace_hardirqs_on+0xbd/0x310
[  700.101980]  ? kasan_check_read+0x11/0x20
[  700.106127]  ? ___ratelimit+0x3b4/0x672
[  700.110116]  ? trace_hardirqs_off_caller+0x310/0x310
[  700.115223]  ? trace_hardirqs_on+0x310/0x310
[  700.119636]  ? lock_downgrade+0x900/0x900
[  700.123797]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  700.128902]  ? ___ratelimit+0x3b9/0x672
[  700.132897]  ? idr_get_free+0xf70/0xf70
[  700.136904]  ? find_held_lock+0x36/0x1c0
[  700.140981]  oom_kill_process.cold.27+0x10/0x903
[  700.145737]  ? zap_class+0x640/0x640
[  700.149486]  ? check_preemption_disabled+0x48/0x280
[  700.154519]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  700.159475]  ? kasan_check_read+0x11/0x20
[  700.163651]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  700.168931]  ? oom_evaluate_task+0x540/0x540
[  700.173342]  ? find_held_lock+0x36/0x1c0
[  700.177413]  ? out_of_memory+0x974/0x1430
[  700.181578]  ? lock_downgrade+0x900/0x900
[  700.185740]  ? check_preemption_disabled+0x48/0x280
[  700.190777]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  700.195709]  ? kasan_check_read+0x11/0x20
[  700.199855]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  700.205130]  ? rcu_softirq_qs+0x20/0x20
[  700.209108]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  700.214641]  ? oom_evaluate_task+0x302/0x540
[  700.219054]  out_of_memory+0xa84/0x1430
[  700.223039]  ? oom_killer_disable+0x3a0/0x3a0
[  700.227537]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  700.232489]  ? __ww_mutex_check_waiters+0x160/0x160
[  700.237517]  __alloc_pages_slowpath+0x232c/0x2de0
[  700.242388]  ? warn_alloc+0x120/0x120
[  700.246246]  ? mark_held_locks+0x130/0x130
[  700.250506]  ? find_get_entry+0xaae/0x1120
[  700.254765]  ? filemap_map_pages+0x1a20/0x1a20
[  700.259352]  ? zap_class+0x640/0x640
[  700.263072]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  700.268611]  ? check_preemption_disabled+0x48/0x280
[  700.273642]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  700.279180]  ? should_fail+0x22d/0xd01
[  700.283077]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  700.288181]  ? zap_class+0x640/0x640
[  700.291927]  ? __lock_is_held+0xb5/0x140
[  700.295999]  ? mark_held_locks+0x130/0x130
[  700.300251]  ? lock_release+0xa00/0xa00
[  700.304260]  ? perf_trace_sched_process_exec+0x860/0x860
[  700.309714]  ? xa_load+0x2ba/0x460
[  700.313254]  ? lock_downgrade+0x900/0x900
[  700.317412]  ? __might_sleep+0x95/0x190
[  700.321392]  __alloc_pages_nodemask+0xad8/0xea0
[  700.326069]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  700.331085]  ? __page_cache_alloc+0x191/0x5c0
[  700.335580]  ? xa_load+0x2e1/0x460
[  700.339138]  ? xa_clear_mark+0x40/0x40
[  700.343028]  ? zap_class+0x640/0x640
[  700.346761]  ? zap_class+0x640/0x640
[  700.350504]  ? zap_class+0x640/0x640
[  700.354245]  ? __do_page_cache_readahead+0x663/0x810
[  700.359360]  ? find_held_lock+0x36/0x1c0
[  700.363445]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  700.368994]  alloc_pages_current+0x173/0x350
[  700.373428]  __page_cache_alloc+0x38c/0x5c0
[  700.377784]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  700.382716]  ? kasan_check_read+0x11/0x20
[  700.386880]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  700.392193]  ? generic_perform_write+0x6a0/0x6a0
[  700.396951]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  700.402522]  ? check_preemption_disabled+0x48/0x280
[  700.407562]  filemap_fault+0x1595/0x25f0
[  700.411649]  ? __lock_page_or_retry+0xa00/0xa00
[  700.416319]  ? mark_held_locks+0x130/0x130
[  700.420561]  ? filemap_map_pages+0xd6b/0x1a20
[  700.425084]  ? lock_downgrade+0x900/0x900
[  700.429245]  ? check_preemption_disabled+0x48/0x280
[  700.434268]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  700.439201]  ? kasan_check_read+0x11/0x20
[  700.443365]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  700.448654]  ? rcu_softirq_qs+0x20/0x20
[  700.452640]  ? filemap_map_pages+0xd92/0x1a20
[  700.457140]  ? print_usage_bug+0xc0/0xc0
[  700.461235]  ? find_get_entries_tag+0x1400/0x1400
[  700.466074]  ? __kasan_slab_free+0x102/0x150
[  700.470482]  ? kasan_slab_free+0xe/0x10
[  700.474452]  ? kmem_cache_free+0x83/0x290
[  700.478616]  ? __sigqueue_free.part.29+0x74/0x90
[  700.483389]  ? lock_acquire+0x1ed/0x520
[  700.487364]  ? ext4_filemap_fault+0x7a/0xad
[  700.491690]  ? lock_release+0xa00/0xa00
[  700.495666]  ? perf_trace_sched_process_exec+0x860/0x860
[  700.501120]  ? print_usage_bug+0xc0/0xc0
[  700.505188]  ? print_usage_bug+0xc0/0xc0
[  700.509280]  ? down_read+0x8d/0x120
[  700.512908]  ? ext4_filemap_fault+0x7a/0xad
[  700.517241]  ? __down_interruptible+0x700/0x700
[  700.521938]  ext4_filemap_fault+0x82/0xad
[  700.526111]  __do_fault+0x100/0x6b0
[  700.529745]  ? pmd_devmap_trans_unstable+0x220/0x220
[  700.534861]  ? mark_held_locks+0x130/0x130
[  700.539101]  ? mark_held_locks+0x130/0x130
[  700.543336]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  700.548880]  ? rcu_pm_notify+0xc0/0xc0
[  700.552783]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  700.558485]  __handle_mm_fault+0x3ea0/0x5be0
[  700.562905]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  700.567746]  ? _raw_spin_unlock_irq+0x27/0x80
[  700.572254]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  700.576848]  ? trace_hardirqs_on+0xbd/0x310
[  700.581172]  ? kasan_check_read+0x11/0x20
[  700.585320]  ? __set_current_blocked+0xdf/0x120
[  700.590008]  ? trace_hardirqs_off_caller+0x310/0x310
[  700.595125]  ? zap_class+0x640/0x640
[  700.598843]  ? zap_class+0x640/0x640
[  700.602566]  ? find_held_lock+0x36/0x1c0
[  700.606637]  ? handle_mm_fault+0x42a/0xc70
[  700.610874]  ? lock_downgrade+0x900/0x900
[  700.615023]  ? check_preemption_disabled+0x48/0x280
[  700.620045]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  700.624987]  ? kasan_check_read+0x11/0x20
[  700.629131]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  700.634403]  ? rcu_softirq_qs+0x20/0x20
[  700.638372]  ? trace_hardirqs_off_caller+0x310/0x310
[  700.643477]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  700.649018]  ? check_preemption_disabled+0x48/0x280
[  700.654048]  handle_mm_fault+0x54f/0xc70
[  700.658117]  ? __handle_mm_fault+0x5be0/0x5be0
[  700.662705]  ? find_vma+0x34/0x190
[  700.666250]  __do_page_fault+0x5e8/0xe60
[  700.670348]  ? exit_to_usermode_loop+0x1f4/0x380
[  700.675120]  do_page_fault+0xf2/0x7e0
[  700.678921]  ? vmalloc_sync_all+0x30/0x30
[  700.683069]  ? error_entry+0x70/0xd0
[  700.687256]  ? trace_hardirqs_off_caller+0xbb/0x310
[  700.692285]  ? trace_hardirqs_on_caller+0xc0/0x310
[  700.697217]  ? syscall_return_slowpath+0x5e0/0x5e0
[  700.702143]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  700.706989]  ? trace_hardirqs_on_caller+0x310/0x310
[  700.712007]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  700.717462]  ? prepare_exit_to_usermode+0x291/0x3b0
[  700.722523]  ? page_fault+0x8/0x30
[  700.726098]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  700.730946]  ? page_fault+0x8/0x30
[  700.734516]  page_fault+0x1e/0x30
[  700.737984] RIP: 0033:0x45db60
[  700.741191] Code: Bad RIP value.
[  700.744580] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  700.749940] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  700.757205] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  700.764470] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  700.771747] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  700.779050] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  700.786352] warn_alloc_show_mem: 1 callbacks suppressed
[  700.786363] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  700.786365] Mem-Info:
[  700.786395] active_anon:42936 inactive_anon:306 isolated_anon:0
[  700.786395]  active_file:13 inactive_file:13 isolated_file:0
[  700.786395]  unevictable:0 dirty:0 writeback:0 unstable:0
[  700.786395]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  700.786395]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  700.786395]  free:13785 free_pcp:492 free_cma:0
[  700.791732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  700.798601] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  700.801124] Call Trace:
[  700.833905] 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
[  700.843266]  dump_stack+0x244/0x39d
[  700.870822] lowmem_reserve[]: 0 2818 6321 6321
[  700.873414]  ? dump_stack_print_info.cold.1+0x20/0x20
[  700.899492] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  700.903130]  warn_alloc.cold.116+0xb7/0x1bd
[  700.907672] lowmem_reserve[]: 0 0 3503 3503
[  700.912861]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  700.939990] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  700.944312]  ? lock_downgrade+0x900/0x900
[  700.948596] lowmem_reserve[]: 0 0 0 0
[  700.953448]  ? trace_hardirqs_off+0xb8/0x310
[  700.982573] 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
[  700.986727]  ? trace_hardirqs_off+0xb8/0x310
[  700.990491] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  700.994897]  __alloc_pages_slowpath+0x2651/0x2de0
[  701.008385] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  701.012837]  ? warn_alloc+0x120/0x120
[  701.027970] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  701.032807]  ? warn_alloc+0x120/0x120
[  701.047958] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  701.047968] 380 total pagecache pages
[  701.051812]  ? warn_alloc+0x120/0x120
[  701.060623] 0 pages in swap cache
[  701.064423]  ? print_usage_bug+0xc0/0xc0
[  701.072972] Swap cache stats: add 0, delete 0, find 0/0
[  701.076772]  ? print_usage_bug+0xc0/0xc0
[  701.080550] Free swap  = 0kB
[  701.084020]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  701.088054] Total swap = 0kB
[  701.093413]  ? should_fail+0x22d/0xd01
[  701.097444] 1965979 pages RAM
[  701.100458]  ? __lock_acquire+0x62f/0x4c20
[  701.105974] 0 pages HighMem/MovableOnly
[  701.108989]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  701.112854] 342854 pages reserved
[  701.115955]  ? __lock_acquire+0x62f/0x4c20
[  701.120167] 0 pages cma reserved
[  701.124138]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  701.129280] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  701.132655]  ? __lock_acquire+0x62f/0x4c20
[  701.132671]  ? should_fail+0x22d/0xd01
[  701.136942] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  701.140251]  ? mark_held_locks+0x130/0x130
[  701.145323] syz-fuzzer cpuset=/ mems_allowed=0
[  701.151816]  ? mark_held_locks+0x130/0x130
[  701.183616]  ? mark_held_locks+0x130/0x130
[  701.187856]  ? zap_class+0x640/0x640
[  701.191568]  ? print_usage_bug+0xc0/0xc0
[  701.195628]  ? mark_held_locks+0x130/0x130
[  701.199868]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  701.205411]  ? check_preemption_disabled+0x48/0x280
[  701.210438]  ? __lock_is_held+0xb5/0x140
[  701.214521]  __alloc_pages_nodemask+0xad8/0xea0
[  701.219201]  ? zap_class+0x640/0x640
[  701.222921]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  701.227949]  ? find_held_lock+0x36/0x1c0
[  701.232021]  ? ____cache_alloc_node+0x1c7/0x1e0
[  701.236692]  ? lock_downgrade+0x900/0x900
[  701.240851]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  701.246400]  cache_grow_begin+0xa5/0x8c0
[  701.250462]  ? do_raw_spin_unlock+0xa7/0x330
[  701.254878]  fallback_alloc+0x204/0x2e0
[  701.258861]  ____cache_alloc_node+0x1c7/0x1e0
[  701.263367]  kmem_cache_alloc_node+0xe3/0x730
[  701.267864]  ? ipv6_get_ifaddr+0x42e/0x620
[  701.272108]  __alloc_skb+0x119/0x770
[  701.275820]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  701.281105]  ? netdev_alloc_frag+0x1f0/0x1f0
[  701.285514]  ? lock_downgrade+0x900/0x900
[  701.289674]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  701.295214]  ? refcount_sub_and_test_checked+0x203/0x310
[  701.300669]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  701.306122]  ? addrconf_rs_timer+0x690/0x690
[  701.310542]  ndisc_alloc_skb+0x144/0x340
[  701.314609]  ndisc_send_rs+0x331/0x6e0
[  701.318509]  addrconf_rs_timer+0x314/0x690
[  701.322793]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  701.327046]  call_timer_fn+0x272/0x920
[  701.330935]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  701.335203]  ? process_timeout+0x40/0x40
[  701.339326]  ? __run_timers+0x7da/0xc70
[  701.343323]  ? _raw_spin_unlock_irq+0x27/0x80
[  701.347819]  ? _raw_spin_unlock_irq+0x27/0x80
[  701.352316]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  701.356553]  ? lockdep_hardirqs_on+0x296/0x5b0
[  701.361137]  ? trace_hardirqs_on+0xbd/0x310
[  701.365462]  ? kasan_check_read+0x11/0x20
[  701.369606]  ? __run_timers+0x7da/0xc70
[  701.373582]  ? trace_hardirqs_off_caller+0x310/0x310
[  701.378691]  ? tcp_compressed_ack_kick+0x220/0x220
[  701.383622]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  701.387852]  __run_timers+0x7e5/0xc70
[  701.391664]  ? timer_fixup_init+0x70/0x70
[  701.395827]  ? _raw_spin_unlock_irq+0x27/0x80
[  701.400320]  ? _raw_spin_unlock_irq+0x27/0x80
[  701.404818]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  701.409405]  ? trace_hardirqs_on+0xbd/0x310
[  701.413734]  ? kasan_check_read+0x11/0x20
[  701.417899]  ? finish_task_switch+0x1f4/0x910
[  701.422395]  ? trace_hardirqs_off_caller+0x310/0x310
[  701.427500]  ? compat_start_thread+0x80/0x80
[  701.431947]  ? pvclock_read_flags+0x160/0x160
[  701.436443]  ? __switch_to_asm+0x34/0x70
[  701.440506]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  701.446049]  ? check_preemption_disabled+0x48/0x280
[  701.451080]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  701.456623]  ? rcu_pm_notify+0xc0/0xc0
[  701.460511]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  701.466055]  ? check_preemption_disabled+0x48/0x280
[  701.471075]  run_timer_softirq+0x52/0xb0
[  701.475139]  ? rcu_read_lock_sched_held+0x14f/0x180
[  701.480157]  __do_softirq+0x308/0xb7e
[  701.483964]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  701.488725]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  701.493836]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  701.499287]  ? trace_hardirqs_on+0x310/0x310
[  701.503706]  ? schedule+0x108/0x460
[  701.507343]  ? trace_hardirqs_off+0xb8/0x310
[  701.511771]  ? smpboot_thread_fn+0x68b/0xa00
[  701.516208]  ? trace_hardirqs_on+0x310/0x310
[  701.520618]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  701.526165]  ? check_preemption_disabled+0x48/0x280
[  701.531181]  ? takeover_tasklets+0xa90/0xa90
[  701.535593]  run_ksoftirqd+0x5e/0x100
[  701.539393]  smpboot_thread_fn+0x68b/0xa00
[  701.543631]  ? sort_range+0x30/0x30
[  701.547292]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  701.552410]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  701.557952]  ? __kthread_parkme+0xfb/0x1a0
[  701.562193]  ? sort_range+0x30/0x30
[  701.565825]  kthread+0x35a/0x440
[  701.569194]  ? kthread_stop+0x900/0x900
[  701.573190]  ret_from_fork+0x3a/0x50
[  701.576928] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  701.577002] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  701.583939] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  701.583944] Call Trace:
[  701.583951]  <IRQ>
[  701.583970]  dump_stack+0x244/0x39d
[  701.583989]  ? dump_stack_print_info.cold.1+0x20/0x20
[  701.590550] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  701.599820]  warn_alloc.cold.116+0xb7/0x1bd
[  701.602371] ksoftirqd/0 cpuset=/ mems_allowed=0
[  701.604518]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  701.637433]  ? lock_downgrade+0x900/0x900
[  701.641594]  ? trace_hardirqs_off+0xb8/0x310
[  701.646009]  ? trace_hardirqs_off+0xb8/0x310
[  701.650427]  __alloc_pages_slowpath+0x2651/0x2de0
[  701.655307]  ? warn_alloc+0x120/0x120
[  701.659117]  ? print_usage_bug+0xc0/0xc0
[  701.663179]  ? warn_alloc+0x120/0x120
[  701.666986]  ? warn_alloc+0x120/0x120
[  701.670797]  ? print_usage_bug+0xc0/0xc0
[  701.674866]  ? print_usage_bug+0xc0/0xc0
[  701.678929]  ? __lock_acquire+0x62f/0x4c20
[  701.683654]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  701.689196]  ? should_fail+0x22d/0xd01
[  701.693089]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  701.698200]  ? __lock_acquire+0x62f/0x4c20
[  701.702439]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  701.707541]  ? __lock_acquire+0x62f/0x4c20
[  701.711784]  ? should_fail+0x22d/0xd01
[  701.715683]  ? find_held_lock+0x36/0x1c0
[  701.719762]  ? mark_held_locks+0x130/0x130
[  701.724012]  ? mark_held_locks+0x130/0x130
[  701.728280]  ? zap_class+0x640/0x640
[  701.731997]  ? zap_class+0x640/0x640
[  701.735712]  ? print_usage_bug+0xc0/0xc0
[  701.739775]  ? do_raw_spin_unlock+0xa7/0x330
[  701.744184]  ? zap_class+0x640/0x640
[  701.747903]  ? print_usage_bug+0xc0/0xc0
[  701.751966]  ? wq_watchdog_touch+0x9c/0xfe
[  701.756219]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  701.761765]  ? check_preemption_disabled+0x48/0x280
[  701.766818]  ? __lock_is_held+0xb5/0x140
[  701.770895]  __alloc_pages_nodemask+0xad8/0xea0
[  701.775565]  ? zap_class+0x640/0x640
[  701.779292]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  701.784325]  ? find_held_lock+0x36/0x1c0
[  701.788402]  ? ____cache_alloc_node+0x1c7/0x1e0
[  701.793098]  ? lock_downgrade+0x900/0x900
[  701.797257]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  701.802804]  cache_grow_begin+0xa5/0x8c0
[  701.806870]  ? do_raw_spin_unlock+0xa7/0x330
[  701.811294]  fallback_alloc+0x204/0x2e0
[  701.815281]  ____cache_alloc_node+0x1c7/0x1e0
[  701.819793]  kmem_cache_alloc_node+0xe3/0x730
[  701.824295]  ? ipv6_get_ifaddr+0x42e/0x620
[  701.828542]  __alloc_skb+0x119/0x770
[  701.832285]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  701.837586]  ? netdev_alloc_frag+0x1f0/0x1f0
[  701.841999]  ? lock_downgrade+0x900/0x900
[  701.846155]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  701.851710]  ? refcount_sub_and_test_checked+0x203/0x310
[  701.857165]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  701.862619]  ? addrconf_rs_timer+0x690/0x690
[  701.867044]  ndisc_alloc_skb+0x144/0x340
[  701.871111]  ndisc_send_rs+0x331/0x6e0
[  701.875004]  addrconf_rs_timer+0x314/0x690
[  701.879250]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  701.883503]  call_timer_fn+0x272/0x920
[  701.887389]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  701.891639]  ? process_timeout+0x40/0x40
[  701.895710]  ? mark_held_locks+0xc7/0x130
[  701.899862]  ? _raw_spin_unlock_irq+0x27/0x80
[  701.904358]  ? _raw_spin_unlock_irq+0x27/0x80
[  701.908854]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  701.913091]  ? lockdep_hardirqs_on+0x296/0x5b0
[  701.917675]  ? trace_hardirqs_on+0xbd/0x310
[  701.922001]  ? kasan_check_read+0x11/0x20
[  701.926150]  ? __run_timers+0x7da/0xc70
[  701.930127]  ? trace_hardirqs_off_caller+0x310/0x310
[  701.935237]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  701.939478]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  701.943713]  __run_timers+0x7e5/0xc70
[  701.947526]  ? timer_fixup_init+0x70/0x70
[  701.951692]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  701.956712]  ? zap_class+0x640/0x640
[  701.960434]  ? print_usage_bug+0xc0/0xc0
[  701.964500]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  701.969705]  ? find_held_lock+0x36/0x1c0
[  701.973784]  ? zap_class+0x640/0x640
[  701.977509]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  701.983052]  ? check_preemption_disabled+0x48/0x280
[  701.988086]  ? __lock_is_held+0xb5/0x140
[  701.992150]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  701.997691]  ? check_preemption_disabled+0x48/0x280
[  702.002712]  run_timer_softirq+0x52/0xb0
[  702.006801]  ? rcu_read_lock_sched_held+0x14f/0x180
[  702.011826]  __do_softirq+0x308/0xb7e
[  702.015634]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  702.020130]  ? lock_downgrade+0x900/0x900
[  702.024291]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  702.029431]  ? pvclock_read_flags+0x160/0x160
[  702.033947]  ? lapic_next_event+0x5a/0x90
[  702.038112]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  702.043658]  ? kvm_clock_read+0x18/0x30
[  702.047637]  ? kvm_sched_clock_read+0x9/0x20
[  702.052049]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  702.057591]  ? check_preemption_disabled+0x48/0x280
[  702.062621]  irq_exit+0x17f/0x1c0
[  702.066085]  smp_apic_timer_interrupt+0x1cb/0x760
[  702.070929]  ? smp_reschedule_interrupt+0x109/0x650
[  702.075948]  ? smp_call_function_single_interrupt+0x650/0x650
[  702.081838]  ? interrupt_entry+0xb5/0xc0
[  702.085904]  ? trace_hardirqs_off_caller+0xbb/0x310
[  702.090921]  ? trace_hardirqs_off_caller+0xbb/0x310
[  702.095944]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  702.100791]  ? trace_hardirqs_on_caller+0x310/0x310
[  702.105806]  ? trace_hardirqs_on_caller+0x310/0x310
[  702.110826]  ? task_prio+0x50/0x50
[  702.114371]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  702.119910]  ? check_preemption_disabled+0x48/0x280
[  702.124937]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  702.129803]  apic_timer_interrupt+0xf/0x20
[  702.134032]  </IRQ>
[  702.136273] RIP: 0010:dump_stack+0x358/0x39d
[  702.140687] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  702.159592] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  702.167308] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  702.174583] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  702.181856] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  702.189122] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  702.196390] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  702.203683]  ? dump_stack+0x34f/0x39d
[  702.207500]  ? dump_stack_print_info.cold.1+0x20/0x20
[  702.212693]  ? mark_held_locks+0x130/0x130
[  702.216930]  ? mark_held_locks+0x130/0x130
[  702.221170]  dump_header+0x27b/0xf72
[  702.224899]  ? pagefault_out_of_memory+0x197/0x197
[  702.229835]  ? __lock_acquire+0x62f/0x4c20
[  702.234071]  ? percpu_ref_get_many+0x240/0x240
[  702.238654]  ? print_usage_bug+0xc0/0xc0
[  702.242724]  ? zap_class+0x640/0x640
[  702.246461]  ? print_usage_bug+0xc0/0xc0
[  702.250521]  ? print_usage_bug+0xc0/0xc0
[  702.254604]  ? zap_class+0x640/0x640
[  702.258326]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  702.263872]  ? find_held_lock+0x36/0x1c0
[  702.267948]  ? mark_held_locks+0xc7/0x130
[  702.272098]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  702.277203]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  702.282329]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  702.286917]  ? trace_hardirqs_on+0xbd/0x310
[  702.291237]  ? kasan_check_read+0x11/0x20
[  702.295387]  ? ___ratelimit+0x3b4/0x672
[  702.299366]  ? trace_hardirqs_off_caller+0x310/0x310
[  702.304474]  ? trace_hardirqs_on+0x310/0x310
[  702.308890]  ? lock_downgrade+0x900/0x900
[  702.313046]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  702.318151]  ? ___ratelimit+0x3b9/0x672
[  702.322128]  ? idr_get_free+0xf70/0xf70
[  702.326105]  ? find_held_lock+0x36/0x1c0
[  702.330176]  oom_kill_process.cold.27+0x10/0x903
[  702.334943]  ? zap_class+0x640/0x640
[  702.338660]  ? check_preemption_disabled+0x48/0x280
[  702.343681]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  702.348610]  ? kasan_check_read+0x11/0x20
[  702.352764]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  702.358049]  ? oom_evaluate_task+0x540/0x540
[  702.362461]  ? find_held_lock+0x36/0x1c0
[  702.366536]  ? out_of_memory+0x974/0x1430
[  702.370684]  ? lock_downgrade+0x900/0x900
[  702.374837]  ? check_preemption_disabled+0x48/0x280
[  702.379858]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  702.384794]  ? kasan_check_read+0x11/0x20
[  702.388945]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  702.394226]  ? rcu_softirq_qs+0x20/0x20
[  702.398204]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  702.403743]  ? oom_evaluate_task+0x302/0x540
[  702.408162]  out_of_memory+0xa84/0x1430
[  702.412146]  ? oom_killer_disable+0x3a0/0x3a0
[  702.416647]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  702.421583]  ? __ww_mutex_check_waiters+0x160/0x160
[  702.426617]  __alloc_pages_slowpath+0x232c/0x2de0
[  702.431492]  ? warn_alloc+0x120/0x120
[  702.435297]  ? mark_held_locks+0x130/0x130
[  702.439541]  ? find_get_entry+0xaae/0x1120
[  702.443794]  ? filemap_map_pages+0x1a20/0x1a20
[  702.448388]  ? zap_class+0x640/0x640
[  702.452109]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  702.457648]  ? check_preemption_disabled+0x48/0x280
[  702.462666]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  702.468211]  ? should_fail+0x22d/0xd01
[  702.472365]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  702.477474]  ? zap_class+0x640/0x640
[  702.481216]  ? __lock_is_held+0xb5/0x140
[  702.485308]  ? mark_held_locks+0x130/0x130
[  702.489569]  ? lock_release+0xa00/0xa00
[  702.493544]  ? perf_trace_sched_process_exec+0x860/0x860
[  702.498995]  ? xa_load+0x2ba/0x460
[  702.502536]  ? lock_downgrade+0x900/0x900
[  702.506690]  ? __might_sleep+0x95/0x190
[  702.510675]  __alloc_pages_nodemask+0xad8/0xea0
[  702.515364]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  702.520381]  ? __page_cache_alloc+0x191/0x5c0
[  702.524876]  ? xa_load+0x2e1/0x460
[  702.528420]  ? xa_clear_mark+0x40/0x40
[  702.532317]  ? zap_class+0x640/0x640
[  702.536041]  ? zap_class+0x640/0x640
[  702.539764]  ? zap_class+0x640/0x640
[  702.543479]  ? __do_page_cache_readahead+0x663/0x810
[  702.548592]  ? find_held_lock+0x36/0x1c0
[  702.552659]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  702.558342]  alloc_pages_current+0x173/0x350
[  702.562767]  __page_cache_alloc+0x38c/0x5c0
[  702.567092]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  702.572022]  ? kasan_check_read+0x11/0x20
[  702.576167]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  702.581477]  ? generic_perform_write+0x6a0/0x6a0
[  702.586230]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  702.591771]  ? check_preemption_disabled+0x48/0x280
[  702.596798]  filemap_fault+0x1595/0x25f0
[  702.600868]  ? __lock_page_or_retry+0xa00/0xa00
[  702.605550]  ? mark_held_locks+0x130/0x130
[  702.609795]  ? filemap_map_pages+0xd6b/0x1a20
[  702.614300]  ? lock_downgrade+0x900/0x900
[  702.618461]  ? check_preemption_disabled+0x48/0x280
[  702.623475]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  702.628417]  ? kasan_check_read+0x11/0x20
[  702.632597]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  702.637887]  ? rcu_softirq_qs+0x20/0x20
[  702.641944]  ? filemap_map_pages+0xd92/0x1a20
[  702.646440]  ? print_usage_bug+0xc0/0xc0
[  702.650520]  ? find_get_entries_tag+0x1400/0x1400
[  702.655359]  ? __kasan_slab_free+0x102/0x150
[  702.659772]  ? kasan_slab_free+0xe/0x10
[  702.663747]  ? kmem_cache_free+0x83/0x290
[  702.667920]  ? __sigqueue_free.part.29+0x74/0x90
[  702.672726]  ? lock_acquire+0x1ed/0x520
[  702.676711]  ? ext4_filemap_fault+0x7a/0xad
[  702.681037]  ? lock_release+0xa00/0xa00
[  702.685507]  ? perf_trace_sched_process_exec+0x860/0x860
[  702.690960]  ? print_usage_bug+0xc0/0xc0
[  702.695048]  ? print_usage_bug+0xc0/0xc0
[  702.699117]  ? down_read+0x8d/0x120
[  702.702767]  ? ext4_filemap_fault+0x7a/0xad
[  702.707090]  ? __down_interruptible+0x700/0x700
[  702.711778]  ext4_filemap_fault+0x82/0xad
[  702.715935]  __do_fault+0x100/0x6b0
[  702.719567]  ? pmd_devmap_trans_unstable+0x220/0x220
[  702.724669]  ? mark_held_locks+0x130/0x130
[  702.728921]  ? mark_held_locks+0x130/0x130
[  702.733155]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  702.738693]  ? rcu_pm_notify+0xc0/0xc0
[  702.742590]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  702.748132]  __handle_mm_fault+0x3ea0/0x5be0
[  702.752555]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  702.757433]  ? _raw_spin_unlock_irq+0x27/0x80
[  702.761928]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  702.766508]  ? trace_hardirqs_on+0xbd/0x310
[  702.770821]  ? kasan_check_read+0x11/0x20
[  702.774995]  ? __set_current_blocked+0xdf/0x120
[  702.779661]  ? trace_hardirqs_off_caller+0x310/0x310
[  702.784780]  ? zap_class+0x640/0x640
[  702.788504]  ? zap_class+0x640/0x640
[  702.792220]  ? find_held_lock+0x36/0x1c0
[  702.796289]  ? handle_mm_fault+0x42a/0xc70
[  702.800536]  ? lock_downgrade+0x900/0x900
[  702.804680]  ? check_preemption_disabled+0x48/0x280
[  702.809711]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  702.814654]  ? kasan_check_read+0x11/0x20
[  702.818813]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  702.824101]  ? rcu_softirq_qs+0x20/0x20
[  702.828070]  ? trace_hardirqs_off_caller+0x310/0x310
[  702.833212]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  702.838747]  ? check_preemption_disabled+0x48/0x280
[  702.843785]  handle_mm_fault+0x54f/0xc70
[  702.847863]  ? __handle_mm_fault+0x5be0/0x5be0
[  702.852450]  ? find_vma+0x34/0x190
[  702.855997]  __do_page_fault+0x5e8/0xe60
[  702.860057]  ? exit_to_usermode_loop+0x1f4/0x380
[  702.864821]  do_page_fault+0xf2/0x7e0
[  702.868619]  ? vmalloc_sync_all+0x30/0x30
[  702.872772]  ? error_entry+0x70/0xd0
[  702.876515]  ? trace_hardirqs_off_caller+0xbb/0x310
[  702.881542]  ? trace_hardirqs_on_caller+0xc0/0x310
[  702.886471]  ? syscall_return_slowpath+0x5e0/0x5e0
[  702.891398]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  702.896239]  ? trace_hardirqs_on_caller+0x310/0x310
[  702.901255]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  702.906714]  ? prepare_exit_to_usermode+0x291/0x3b0
[  702.911727]  ? page_fault+0x8/0x30
[  702.915273]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  702.920134]  ? page_fault+0x8/0x30
[  702.923686]  page_fault+0x1e/0x30
[  702.927131] RIP: 0033:0x45db60
[  702.930329] Code: Bad RIP value.
[  702.933725] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  702.939125] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  702.946391] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  702.953656] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  702.960920] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  702.968196] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  702.975485] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  702.975490] warn_alloc_show_mem: 1 callbacks suppressed
[  702.975497] Mem-Info:
[  702.982362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  702.987727] active_anon:42936 inactive_anon:306 isolated_anon:0
[  702.987727]  active_file:13 inactive_file:13 isolated_file:0
[  702.987727]  unevictable:0 dirty:0 writeback:0 unstable:0
[  702.987727]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  702.987727]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  702.987727]  free:13785 free_pcp:492 free_cma:0
[  702.990103] Call Trace:
[  702.999490] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  703.032252]  dump_stack+0x244/0x39d
[  703.034809] 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
[  703.062386]  ? dump_stack_print_info.cold.1+0x20/0x20
[  703.065983] lowmem_reserve[]: 0 2818 6321 6321
[  703.092094]  warn_alloc.cold.116+0xb7/0x1bd
[  703.097247] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  703.101851]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  703.106142] lowmem_reserve[]: 0 0 3503 3503
[  703.133282]  ? lock_downgrade+0x900/0x900
[  703.138121] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  703.142454]  ? trace_hardirqs_off+0xb8/0x310
[  703.146573] lowmem_reserve[]: 0 0 0 0
[  703.175715]  ? trace_hardirqs_off+0xb8/0x310
[  703.180093] 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
[  703.183908]  __alloc_pages_slowpath+0x2651/0x2de0
[  703.188289] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  703.201828]  ? warn_alloc+0x120/0x120
[  703.206624] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  703.221814]  ? print_usage_bug+0xc0/0xc0
[  703.225608] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  703.240772]  ? warn_alloc+0x120/0x120
[  703.244814] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  703.253634]  ? warn_alloc+0x120/0x120
[  703.257404] 380 total pagecache pages
[  703.265973]  ? print_usage_bug+0xc0/0xc0
[  703.269765] 0 pages in swap cache
[  703.273570]  ? print_usage_bug+0xc0/0xc0
[  703.277604] Swap cache stats: add 0, delete 0, find 0/0
[  703.281047]  ? __lock_acquire+0x62f/0x4c20
[  703.285082] Free swap  = 0kB
[  703.290437]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  703.294641] Total swap = 0kB
[  703.297651]  ? should_fail+0x22d/0xd01
[  703.303180] 1965979 pages RAM
[  703.306191]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  703.310050] 0 pages HighMem/MovableOnly
[  703.313150]  ? __lock_acquire+0x62f/0x4c20
[  703.318229] 342854 pages reserved
[  703.322198]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  703.326404] 0 pages cma reserved
[  703.329851]  ? __lock_acquire+0x62f/0x4c20
[  703.334988] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  703.338281]  ? should_fail+0x22d/0xd01
[  703.338296]  ? find_held_lock+0x36/0x1c0
[  703.342626] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  703.348998]  ? mark_held_locks+0x130/0x130
[  703.352860] syz-fuzzer cpuset=/ mems_allowed=0
[  703.356917]  ? mark_held_locks+0x130/0x130
[  703.380150]  ? zap_class+0x640/0x640
[  703.383865]  ? mark_held_locks+0xc7/0x130
[  703.388010]  ? do_raw_spin_unlock+0xa7/0x330
[  703.392411]  ? zap_class+0x640/0x640
[  703.396118]  ? print_usage_bug+0xc0/0xc0
[  703.400180]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  703.405717]  ? check_preemption_disabled+0x48/0x280
[  703.410741]  ? __lock_is_held+0xb5/0x140
[  703.414821]  __alloc_pages_nodemask+0xad8/0xea0
[  703.419490]  ? zap_class+0x640/0x640
[  703.423208]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  703.428235]  ? find_held_lock+0x36/0x1c0
[  703.432304]  ? ____cache_alloc_node+0x1c7/0x1e0
[  703.436975]  ? lock_downgrade+0x900/0x900
[  703.441149]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  703.446707]  cache_grow_begin+0xa5/0x8c0
[  703.450771]  ? do_raw_spin_unlock+0xa7/0x330
[  703.455194]  fallback_alloc+0x204/0x2e0
[  703.459171]  ____cache_alloc_node+0x1c7/0x1e0
[  703.463685]  kmem_cache_alloc_node+0xe3/0x730
[  703.468267]  ? ipv6_get_ifaddr+0x42e/0x620
[  703.472512]  __alloc_skb+0x119/0x770
[  703.476224]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  703.481503]  ? netdev_alloc_frag+0x1f0/0x1f0
[  703.485909]  ? lock_downgrade+0x900/0x900
[  703.490060]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  703.495594]  ? refcount_sub_and_test_checked+0x203/0x310
[  703.501047]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  703.506498]  ? addrconf_rs_timer+0x690/0x690
[  703.510915]  ndisc_alloc_skb+0x144/0x340
[  703.514997]  ndisc_send_rs+0x331/0x6e0
[  703.518918]  addrconf_rs_timer+0x314/0x690
[  703.523158]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  703.527401]  call_timer_fn+0x272/0x920
[  703.531289]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  703.535520]  ? process_timeout+0x40/0x40
[  703.539587]  ? __run_timers+0x7da/0xc70
[  703.543621]  ? _raw_spin_unlock_irq+0x27/0x80
[  703.548113]  ? _raw_spin_unlock_irq+0x27/0x80
[  703.552605]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  703.556855]  ? lockdep_hardirqs_on+0x296/0x5b0
[  703.561454]  ? trace_hardirqs_on+0xbd/0x310
[  703.565787]  ? kasan_check_read+0x11/0x20
[  703.569932]  ? __run_timers+0x7da/0xc70
[  703.573910]  ? trace_hardirqs_off_caller+0x310/0x310
[  703.579025]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  703.583278]  __run_timers+0x7e5/0xc70
[  703.587091]  ? timer_fixup_init+0x70/0x70
[  703.591253]  ? _raw_spin_unlock_irq+0x27/0x80
[  703.595745]  ? _raw_spin_unlock_irq+0x27/0x80
[  703.600250]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  703.604833]  ? trace_hardirqs_on+0xbd/0x310
[  703.609150]  ? kasan_check_read+0x11/0x20
[  703.613297]  ? finish_task_switch+0x1f4/0x910
[  703.617815]  ? trace_hardirqs_off_caller+0x310/0x310
[  703.622913]  ? compat_start_thread+0x80/0x80
[  703.627339]  ? pvclock_read_flags+0x160/0x160
[  703.631832]  ? __switch_to_asm+0x34/0x70
[  703.635894]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  703.641431]  ? check_preemption_disabled+0x48/0x280
[  703.646457]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  703.651995]  ? rcu_pm_notify+0xc0/0xc0
[  703.655906]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  703.661448]  ? check_preemption_disabled+0x48/0x280
[  703.666483]  run_timer_softirq+0x52/0xb0
[  703.670545]  ? rcu_read_lock_sched_held+0x14f/0x180
[  703.675573]  __do_softirq+0x308/0xb7e
[  703.679377]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  703.684136]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  703.689236]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  703.694711]  ? trace_hardirqs_on+0x310/0x310
[  703.699124]  ? schedule+0x108/0x460
[  703.702764]  ? trace_hardirqs_off+0xb8/0x310
[  703.707177]  ? smpboot_thread_fn+0x68b/0xa00
[  703.711578]  ? trace_hardirqs_on+0x310/0x310
[  703.715984]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  703.721519]  ? check_preemption_disabled+0x48/0x280
[  703.726538]  ? takeover_tasklets+0xa90/0xa90
[  703.730961]  run_ksoftirqd+0x5e/0x100
[  703.734767]  smpboot_thread_fn+0x68b/0xa00
[  703.739008]  ? sort_range+0x30/0x30
[  703.742651]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  703.747793]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  703.753335]  ? __kthread_parkme+0xfb/0x1a0
[  703.757574]  ? sort_range+0x30/0x30
[  703.761202]  kthread+0x35a/0x440
[  703.764583]  ? kthread_stop+0x900/0x900
[  703.768561]  ret_from_fork+0x3a/0x50
[  703.772291] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  703.772324] rcu: INFO: rcu_preempt self-detected stall on CPU
[  703.779305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  703.785419] rcu: 	0-...!: (117 ticks this GP) idle=f12/1/0x4000000000000002 softirq=64268/64268 fqs=0 
[  703.794500] Call Trace:
[  703.794506]  <IRQ>
[  703.794524]  dump_stack+0x244/0x39d
[  703.794542]  ? dump_stack_print_info.cold.1+0x20/0x20
[  703.794566]  warn_alloc.cold.116+0xb7/0x1bd
[  703.794582]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  703.794598]  ? lock_downgrade+0x900/0x900
[  703.794619]  ? trace_hardirqs_off+0xb8/0x310
[  703.794638]  ? trace_hardirqs_off+0xb8/0x310
[  703.794659]  __alloc_pages_slowpath+0x2651/0x2de0
[  703.794699]  ? warn_alloc+0x120/0x120
[  703.804412] rcu: 	 (t=10518 jiffies g=90897 q=9)
[  703.806992]  ? print_usage_bug+0xc0/0xc0
[  703.809128] rcu: rcu_preempt kthread starved for 10518 jiffies! g90897 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[  703.812736]  ? warn_alloc+0x120/0x120
[  703.817901] rcu: RCU grace-period kthread stack dump:
[  703.822213]  ? warn_alloc+0x120/0x120
[  703.827030] rcu_preempt     R  running task    22568    10      2 0x80000000
[  703.831180]  ? print_usage_bug+0xc0/0xc0
[  703.835560] Call Trace:
[  703.839958]  ? kvm_clock_read+0x18/0x30
[  703.844790]  __schedule+0x8cf/0x21d0
[  703.848567]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  703.853309]  ? __sched_text_start+0x8/0x8
[  703.857344]  ? print_usage_bug+0xc0/0xc0
[  703.867819]  ? add_timer_on+0xa20/0xa20
[  703.871596]  ? __lock_acquire+0x62f/0x4c20
[  703.876774]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  703.880555]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  703.887719]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  703.891769]  ? should_fail+0x22d/0xd01
[  703.894340]  ? trace_hardirqs_on+0xbd/0x310
[  703.898298]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  703.901995]  ? kasan_check_read+0x11/0x20
[  703.906995]  ? __lock_acquire+0x62f/0x4c20
[  703.911127]  ? prepare_to_swait_event+0x25a/0x800
[  703.915170]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  703.919128]  ? trace_hardirqs_off_caller+0x310/0x310
[  703.923344]  ? __lock_acquire+0x62f/0x4c20
[  703.928432]  schedule+0xfe/0x460
[  703.933942]  ? should_fail+0x22d/0xd01
[  703.933969]  ? mark_held_locks+0x130/0x130
[  703.939067]  ? __schedule+0x21d0/0x21d0
[  703.942935]  ? mark_held_locks+0x130/0x130
[  703.947242]  ? prepare_to_swait_event+0x25a/0x800
[  703.952347]  ? zap_class+0x640/0x640
[  703.956482]  ? __init_swait_queue_head+0x150/0x150
[  703.960693]  ? print_usage_bug+0xc0/0xc0
[  703.965521]  ? __lockdep_init_map+0x105/0x590
[  703.970627]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  703.975710]  ? lockdep_init_map+0x9/0x10
[  703.979930]  ? check_preemption_disabled+0x48/0x280
[  703.983280]  schedule_timeout+0x140/0x260
[  703.987162]  ? __lock_is_held+0xb5/0x140
[  703.991373]  ? usleep_range+0x1a0/0x1a0
[  703.995335]  __alloc_pages_nodemask+0xad8/0xea0
[  703.999548]  ? __next_timer_interrupt+0x1a0/0x1a0
[  704.004368]  ? zap_class+0x640/0x640
[  704.008081]  rcu_gp_fqs_loop+0x762/0xa80
[  704.013067]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  704.017115]  ? rcu_gp_fqs_check_wake+0x170/0x170
[  704.021592]  ? find_held_lock+0x36/0x1c0
[  704.027154]  ? trace_hardirqs_off_caller+0x310/0x310
[  704.031200]  ? ____cache_alloc_node+0x1c7/0x1e0
[  704.036191]  ? perf_trace_sched_process_exec+0x860/0x860
[  704.040320]  ? lock_downgrade+0x900/0x900
[  704.044362]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  704.048319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  704.052985]  ? rcu_gp_init+0x90b/0x1260
[  704.057830]  cache_grow_begin+0xa5/0x8c0
[  704.061527]  ? dump_blkd_tasks.isra.48+0xe0/0xe0
[  704.065564]  ? do_raw_spin_unlock+0xa7/0x330
[  704.070563]  ? rcu_accelerate_cbs+0x10a/0xae0
[  704.075301]  fallback_alloc+0x204/0x2e0
[  704.079357]  ? zap_class+0x640/0x640
[  704.084443]  ____cache_alloc_node+0x1c7/0x1e0
[  704.089133]  ? zap_class+0x640/0x640
[  704.094598]  kmem_cache_alloc_node+0xe3/0x730
[  704.098734]  ? __lock_is_held+0xb5/0x140
[  704.104246]  ? ipv6_get_ifaddr+0x42e/0x620
[  704.109782]  ? __lock_is_held+0xb5/0x140
[  704.113737]  __alloc_skb+0x119/0x770
[  704.117787]  ? zap_class+0x640/0x640
[  704.122523]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  704.126932]  ? rcu_accelerate_cbs+0x10a/0xae0
[  704.131409]  ? netdev_alloc_frag+0x1f0/0x1f0
[  704.135370]  ? find_held_lock+0x36/0x1c0
[  704.139093]  ? lock_downgrade+0x900/0x900
[  704.143577]  ? rcu_gp_kthread+0x8cf/0xc70
[  704.147272]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  704.151747]  ? _raw_spin_unlock_irq+0x27/0x80
[  704.155800]  ? refcount_sub_and_test_checked+0x203/0x310
[  704.160012]  ? _raw_spin_unlock_irq+0x27/0x80
[  704.164055]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  704.167750]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  704.171451]  ? addrconf_rs_timer+0x690/0x690
[  704.176707]  ? trace_hardirqs_on+0xbd/0x310
[  704.181192]  ndisc_alloc_skb+0x144/0x340
[  704.185576]  ? kasan_check_read+0x11/0x20
[  704.189621]  ndisc_send_rs+0x331/0x6e0
[  704.193750]  ? trace_hardirqs_off_caller+0x310/0x310
[  704.197901]  addrconf_rs_timer+0x314/0x690
[  704.203415]  ? perf_trace_sched_process_exec+0x860/0x860
[  704.207895]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  704.213326]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  704.217808]  call_timer_fn+0x272/0x920
[  704.223239]  rcu_gp_kthread+0x341/0xc70
[  704.227814]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  704.232209]  ? rcu_gp_init+0x1260/0x1260
[  704.236510]  ? process_timeout+0x40/0x40
[  704.240558]  ? mark_held_locks+0x130/0x130
[  704.244692]  ? mark_held_locks+0xc7/0x130
[  704.248557]  ? __schedule+0x168a/0x21d0
[  704.253637]  ? _raw_spin_unlock_irq+0x27/0x80
[  704.257857]  ? _raw_spin_unlock_irq+0x27/0x80
[  704.263308]  ? _raw_spin_unlock_irq+0x27/0x80
[  704.267529]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  704.273051]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  704.276921]  ? trace_hardirqs_on+0xbd/0x310
[  704.280877]  ? lockdep_hardirqs_on+0x296/0x5b0
[  704.285094]  ? kasan_check_read+0x11/0x20
[  704.289138]  ? trace_hardirqs_on+0xbd/0x310
[  704.293183]  ? __schedule+0x168a/0x21d0
[  704.297399]  ? kasan_check_read+0x11/0x20
[  704.301530]  ? trace_hardirqs_off_caller+0x310/0x310
[  704.305496]  ? __run_timers+0x7da/0xc70
[  704.309992]  ? lock_pin_lock+0x350/0x350
[  704.314468]  ? trace_hardirqs_off_caller+0x310/0x310
[  704.318950]  ? _raw_spin_unlock_irq+0x60/0x80
[  704.323521]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  704.327730]  ? __schedule+0x168a/0x21d0
[  704.332061]  __run_timers+0x7e5/0xc70
[  704.336629]  ? __switch_to_asm+0x40/0x70
[  704.340783]  ? timer_fixup_init+0x70/0x70
[  704.345088]  ? __switch_to_asm+0x40/0x70
[  704.349047]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  704.353177]  ? show_schedstat+0x561/0xf30
[  704.358280]  ? zap_class+0x640/0x640
[  704.362253]  ? __sched_text_start+0x8/0x8
[  704.366297]  ? print_usage_bug+0xc0/0xc0
[  704.371410]  ? find_held_lock+0x36/0x1c0
[  704.375882]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  704.380105]  ? __kthread_parkme+0xce/0x1a0
[  704.384054]  ? find_held_lock+0x36/0x1c0
[  704.387833]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  704.391876]  ? zap_class+0x640/0x640
[  704.396003]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  704.400046]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  704.405041]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  704.409175]  ? check_preemption_disabled+0x48/0x280
[  704.412874]  ? trace_hardirqs_on+0xbd/0x310
[  704.417040]  ? __lock_is_held+0xb5/0x140
[  704.421093]  ? kasan_check_read+0x11/0x20
[  704.425139]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  704.430326]  ? __kthread_parkme+0xce/0x1a0
[  704.434545]  ? check_preemption_disabled+0x48/0x280
[  704.438590]  ? trace_hardirqs_off_caller+0x310/0x310
[  704.443673]  run_timer_softirq+0x52/0xb0
[  704.447405]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  704.452483]  ? rcu_read_lock_sched_held+0x14f/0x180
[  704.458010]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  704.462574]  __do_softirq+0x308/0xb7e
[  704.467572]  ? __kthread_parkme+0xfb/0x1a0
[  704.471901]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  704.475944]  ? rcu_gp_init+0x1260/0x1260
[  704.480100]  ? lock_downgrade+0x900/0x900
[  704.485623]  kthread+0x35a/0x440
[  704.489844]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  704.494843]  ? kthread_stop+0x900/0x900
[  704.499934]  ? pvclock_read_flags+0x160/0x160
[  704.503974]  ret_from_fork+0x3a/0x50
[  704.509068]  ? lapic_next_event+0x5a/0x90
[  704.514074] NMI backtrace for cpu 0
[  704.519611]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  704.574261]  ? kvm_clock_read+0x18/0x30
[  704.578252]  ? kvm_sched_clock_read+0x9/0x20
[  704.582682]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  704.588222]  ? check_preemption_disabled+0x48/0x280
[  704.593264]  irq_exit+0x17f/0x1c0
[  704.596726]  smp_apic_timer_interrupt+0x1cb/0x760
[  704.601590]  ? smp_reschedule_interrupt+0x109/0x650
[  704.606603]  ? smp_call_function_single_interrupt+0x650/0x650
[  704.612498]  ? interrupt_entry+0xb5/0xc0
[  704.616592]  ? trace_hardirqs_off_caller+0xbb/0x310
[  704.621620]  ? trace_hardirqs_off_caller+0xbb/0x310
[  704.626634]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  704.631477]  ? trace_hardirqs_on_caller+0x310/0x310
[  704.636537]  ? trace_hardirqs_on_caller+0x310/0x310
[  704.641554]  ? task_prio+0x50/0x50
[  704.645110]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  704.650647]  ? check_preemption_disabled+0x48/0x280
[  704.655666]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  704.660518]  apic_timer_interrupt+0xf/0x20
[  704.664744]  </IRQ>
[  704.667006] RIP: 0010:dump_stack+0x358/0x39d
[  704.671419] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  704.690772] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  704.698476] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  704.705739] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  704.713009] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  704.720274] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  704.727543] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  704.734827]  ? dump_stack+0x34f/0x39d
[  704.738650]  ? dump_stack_print_info.cold.1+0x20/0x20
[  704.743840]  ? mark_held_locks+0x130/0x130
[  704.748074]  ? mark_held_locks+0x130/0x130
[  704.752316]  dump_header+0x27b/0xf72
[  704.756039]  ? pagefault_out_of_memory+0x197/0x197
[  704.760971]  ? __lock_acquire+0x62f/0x4c20
[  704.765221]  ? percpu_ref_get_many+0x240/0x240
[  704.769822]  ? print_usage_bug+0xc0/0xc0
[  704.773885]  ? zap_class+0x640/0x640
[  704.777603]  ? print_usage_bug+0xc0/0xc0
[  704.781664]  ? print_usage_bug+0xc0/0xc0
[  704.785722]  ? zap_class+0x640/0x640
[  704.789439]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  704.794982]  ? find_held_lock+0x36/0x1c0
[  704.799075]  ? mark_held_locks+0xc7/0x130
[  704.803225]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  704.808326]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  704.813428]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  704.818010]  ? trace_hardirqs_on+0xbd/0x310
[  704.822332]  ? kasan_check_read+0x11/0x20
[  704.826525]  ? ___ratelimit+0x3b4/0x672
[  704.830535]  ? trace_hardirqs_off_caller+0x310/0x310
[  704.835639]  ? trace_hardirqs_on+0x310/0x310
[  704.840061]  ? lock_downgrade+0x900/0x900
[  704.844214]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  704.849318]  ? ___ratelimit+0x3b9/0x672
[  704.853309]  ? idr_get_free+0xf70/0xf70
[  704.857286]  ? find_held_lock+0x36/0x1c0
[  704.861369]  oom_kill_process.cold.27+0x10/0x903
[  704.866124]  ? zap_class+0x640/0x640
[  704.869843]  ? check_preemption_disabled+0x48/0x280
[  704.874870]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  704.879812]  ? kasan_check_read+0x11/0x20
[  704.883958]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  704.889235]  ? oom_evaluate_task+0x540/0x540
[  704.893672]  ? find_held_lock+0x36/0x1c0
[  704.897751]  ? out_of_memory+0x974/0x1430
[  704.901923]  ? lock_downgrade+0x900/0x900
[  704.906088]  ? check_preemption_disabled+0x48/0x280
[  704.911108]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  704.916050]  ? kasan_check_read+0x11/0x20
[  704.920198]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  704.925476]  ? rcu_softirq_qs+0x20/0x20
[  704.929454]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  704.934987]  ? oom_evaluate_task+0x302/0x540
[  704.939398]  out_of_memory+0xa84/0x1430
[  704.943380]  ? oom_killer_disable+0x3a0/0x3a0
[  704.947877]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  704.952809]  ? __ww_mutex_check_waiters+0x160/0x160
[  704.957850]  __alloc_pages_slowpath+0x232c/0x2de0
[  704.962735]  ? warn_alloc+0x120/0x120
[  704.966540]  ? mark_held_locks+0x130/0x130
[  704.970785]  ? find_get_entry+0xaae/0x1120
[  704.975050]  ? filemap_map_pages+0x1a20/0x1a20
[  704.979654]  ? zap_class+0x640/0x640
[  704.983386]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  704.988924]  ? check_preemption_disabled+0x48/0x280
[  704.993942]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  704.999492]  ? should_fail+0x22d/0xd01
[  705.003387]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  705.008490]  ? zap_class+0x640/0x640
[  705.012229]  ? __lock_is_held+0xb5/0x140
[  705.016304]  ? mark_held_locks+0x130/0x130
[  705.020544]  ? lock_release+0xa00/0xa00
[  705.024520]  ? perf_trace_sched_process_exec+0x860/0x860
[  705.029968]  ? xa_load+0x2ba/0x460
[  705.033511]  ? lock_downgrade+0x900/0x900
[  705.037664]  ? __might_sleep+0x95/0x190
[  705.041644]  __alloc_pages_nodemask+0xad8/0xea0
[  705.046321]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  705.051338]  ? __page_cache_alloc+0x191/0x5c0
[  705.055832]  ? xa_load+0x2e1/0x460
[  705.059371]  ? xa_clear_mark+0x40/0x40
[  705.063262]  ? zap_class+0x640/0x640
[  705.066989]  ? zap_class+0x640/0x640
[  705.070700]  ? zap_class+0x640/0x640
[  705.074413]  ? __do_page_cache_readahead+0x663/0x810
[  705.079533]  ? find_held_lock+0x36/0x1c0
[  705.083600]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  705.089153]  alloc_pages_current+0x173/0x350
[  705.093573]  __page_cache_alloc+0x38c/0x5c0
[  705.097921]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  705.102878]  ? kasan_check_read+0x11/0x20
[  705.107072]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  705.112351]  ? generic_perform_write+0x6a0/0x6a0
[  705.117105]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  705.122642]  ? check_preemption_disabled+0x48/0x280
[  705.127664]  filemap_fault+0x1595/0x25f0
[  705.131740]  ? __lock_page_or_retry+0xa00/0xa00
[  705.136421]  ? mark_held_locks+0x130/0x130
[  705.140661]  ? filemap_map_pages+0xd6b/0x1a20
[  705.145154]  ? lock_downgrade+0x900/0x900
[  705.149305]  ? check_preemption_disabled+0x48/0x280
[  705.154324]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  705.159250]  ? kasan_check_read+0x11/0x20
[  705.163398]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  705.168672]  ? rcu_softirq_qs+0x20/0x20
[  705.172655]  ? filemap_map_pages+0xd92/0x1a20
[  705.177151]  ? print_usage_bug+0xc0/0xc0
[  705.181220]  ? find_get_entries_tag+0x1400/0x1400
[  705.186060]  ? __kasan_slab_free+0x102/0x150
[  705.190477]  ? kasan_slab_free+0xe/0x10
[  705.194445]  ? kmem_cache_free+0x83/0x290
[  705.198589]  ? __sigqueue_free.part.29+0x74/0x90
[  705.203358]  ? lock_acquire+0x1ed/0x520
[  705.207329]  ? ext4_filemap_fault+0x7a/0xad
[  705.211658]  ? lock_release+0xa00/0xa00
[  705.215630]  ? perf_trace_sched_process_exec+0x860/0x860
[  705.221081]  ? print_usage_bug+0xc0/0xc0
[  705.225141]  ? print_usage_bug+0xc0/0xc0
[  705.229208]  ? down_read+0x8d/0x120
[  705.232828]  ? ext4_filemap_fault+0x7a/0xad
[  705.237150]  ? __down_interruptible+0x700/0x700
[  705.241825]  ext4_filemap_fault+0x82/0xad
[  705.245986]  __do_fault+0x100/0x6b0
[  705.249615]  ? pmd_devmap_trans_unstable+0x220/0x220
[  705.254732]  ? mark_held_locks+0x130/0x130
[  705.258972]  ? mark_held_locks+0x130/0x130
[  705.263224]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  705.268769]  ? rcu_pm_notify+0xc0/0xc0
[  705.272663]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  705.278203]  __handle_mm_fault+0x3ea0/0x5be0
[  705.282620]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  705.287457]  ? _raw_spin_unlock_irq+0x27/0x80
[  705.291952]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  705.296534]  ? trace_hardirqs_on+0xbd/0x310
[  705.300871]  ? kasan_check_read+0x11/0x20
[  705.305015]  ? __set_current_blocked+0xdf/0x120
[  705.309684]  ? trace_hardirqs_off_caller+0x310/0x310
[  705.314804]  ? zap_class+0x640/0x640
[  705.318552]  ? zap_class+0x640/0x640
[  705.322282]  ? find_held_lock+0x36/0x1c0
[  705.326352]  ? handle_mm_fault+0x42a/0xc70
[  705.330586]  ? lock_downgrade+0x900/0x900
[  705.334730]  ? check_preemption_disabled+0x48/0x280
[  705.339775]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  705.344719]  ? kasan_check_read+0x11/0x20
[  705.348865]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  705.354141]  ? rcu_softirq_qs+0x20/0x20
[  705.358113]  ? trace_hardirqs_off_caller+0x310/0x310
[  705.363213]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  705.368746]  ? check_preemption_disabled+0x48/0x280
[  705.373783]  handle_mm_fault+0x54f/0xc70
[  705.377847]  ? __handle_mm_fault+0x5be0/0x5be0
[  705.382431]  ? find_vma+0x34/0x190
[  705.385993]  __do_page_fault+0x5e8/0xe60
[  705.390072]  ? exit_to_usermode_loop+0x1f4/0x380
[  705.394834]  do_page_fault+0xf2/0x7e0
[  705.398651]  ? vmalloc_sync_all+0x30/0x30
[  705.402841]  ? error_entry+0x70/0xd0
[  705.406585]  ? trace_hardirqs_off_caller+0xbb/0x310
[  705.411596]  ? trace_hardirqs_on_caller+0xc0/0x310
[  705.416520]  ? syscall_return_slowpath+0x5e0/0x5e0
[  705.421442]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  705.426291]  ? trace_hardirqs_on_caller+0x310/0x310
[  705.431321]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  705.436782]  ? prepare_exit_to_usermode+0x291/0x3b0
[  705.441812]  ? page_fault+0x8/0x30
[  705.445352]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  705.450214]  ? page_fault+0x8/0x30
[  705.453763]  page_fault+0x1e/0x30
[  705.457214] RIP: 0033:0x45db60
[  705.460413] Code: Bad RIP value.
[  705.463778] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  705.469155] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  705.476423] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  705.483718] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  705.490994] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  705.498272] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  705.505581] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  705.505586] warn_alloc_show_mem: 1 callbacks suppressed
[  705.505593] Mem-Info:
[  705.512428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  705.517813] active_anon:42936 inactive_anon:306 isolated_anon:0
[  705.517813]  active_file:13 inactive_file:13 isolated_file:0
[  705.517813]  unevictable:0 dirty:0 writeback:0 unstable:0
[  705.517813]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  705.517813]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  705.517813]  free:13785 free_pcp:492 free_cma:0
[  705.520189] Call Trace:
[  705.529612] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  705.562368]  <IRQ>
[  705.564932] 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
[  705.592512]  dump_stack+0x244/0x39d
[  705.594654] lowmem_reserve[]: 0 2818 6321 6321
[  705.622857]  ? dump_stack_print_info.cold.1+0x20/0x20
[  705.626458] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  705.631040]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  705.636204] lowmem_reserve[]: 0 0 3503 3503
[  705.663364]  ? do_raw_spin_lock+0x14f/0x350
[  705.668876] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  705.673196]  nmi_cpu_backtrace.cold.2+0x5c/0xa1
[  705.677505] lowmem_reserve[]: 0 0 0 0
[  705.706647]  ? lapic_can_unplug_cpu.cold.27+0x3f/0x3f
[  705.711290] 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
[  705.715079]  nmi_trigger_cpumask_backtrace+0x1e8/0x22a
[  705.720239] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  705.733752]  arch_trigger_cpumask_backtrace+0x14/0x20
[  705.739035] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  705.754201]  rcu_dump_cpu_stacks+0x16f/0x1bc
[  705.759369] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  705.774530]  print_cpu_stall.cold.67+0x1f3/0x3c7
[  705.778911] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  705.787731]  ? print_other_cpu_stall+0x160/0x160
[  705.792458] 380 total pagecache pages
[  705.801029]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  705.805769] 0 pages in swap cache
[  705.809562]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  705.815079] Swap cache stats: add 0, delete 0, find 0/0
[  705.818524]  ? do_trace_rcu_torture_read+0x10/0x10
[  705.824036] Free swap  = 0kB
[  705.829407]  ? rcu_preempt_need_deferred_qs+0x74/0x1f0
[  705.834339] Total swap = 0kB
[  705.837350]  ? __lock_is_held+0xb5/0x140
[  705.842604] 1965979 pages RAM
[  705.845617]  ? __rcu_read_lock+0x50/0x50
[  705.849652] 0 pages HighMem/MovableOnly
[  705.852752]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  705.856793] 342854 pages reserved
[  705.860769]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  705.866304] 0 pages cma reserved
[  705.869762]  ? check_preemption_disabled+0x48/0x280
[  705.875339] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  705.878627]  rcu_check_callbacks+0xf3b/0x13f0
[  705.883733] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  705.890137]  ? rcutree_dead_cpu+0x10/0x10
[  705.894611] syz-fuzzer cpuset=/ mems_allowed=0
[  705.904844]  ? lock_downgrade+0x900/0x900
[  705.917864]  ? lock_release+0x970/0xa00
[  705.921843]  ? zap_class+0x640/0x640
[  705.925570]  ? zap_class+0x640/0x640
[  705.929284]  ? mark_held_locks+0x130/0x130
[  705.933517]  ? zap_class+0x640/0x640
[  705.937235]  ? zap_class+0x640/0x640
[  705.940960]  ? find_held_lock+0x36/0x1c0
[  705.945034]  ? cpuacct_account_field+0x219/0x3d0
[  705.949807]  ? zap_class+0x640/0x640
[  705.953524]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  705.959074]  ? check_preemption_disabled+0x48/0x280
[  705.964101]  ? trace_hardirqs_off+0xb8/0x310
[  705.968508]  ? __lock_is_held+0xb5/0x140
[  705.972568]  ? trace_hardirqs_on+0x310/0x310
[  705.976990]  ? check_preemption_disabled+0x48/0x280
[  705.982011]  ? raise_softirq+0x199/0x420
[  705.986078]  ? raise_softirq_irqoff+0x2e0/0x2e0
[  705.990749]  ? account_system_index_time+0x333/0x5d0
[  705.995882]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  706.001421]  ? check_preemption_disabled+0x48/0x280
[  706.006443]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  706.011977]  ? hrtimer_run_queues+0x9a/0x400
[  706.016400]  ? run_local_timers+0x19b/0x230
[  706.020716]  ? timer_clear_idle+0x90/0x90
[  706.024863]  ? irqtime_account_process_tick.isra.6+0x38e/0x490
[  706.030836]  ? account_process_tick+0x282/0x350
[  706.035509]  update_process_times+0x2d/0x70
[  706.039834]  tick_sched_handle+0x9f/0x180
[  706.043982]  tick_sched_timer+0x45/0x130
[  706.048043]  __hrtimer_run_queues+0x41c/0x10d0
[  706.052632]  ? tick_sched_do_timer+0x1a0/0x1a0
[  706.057221]  ? hrtimer_start_range_ns+0xe00/0xe00
[  706.062069]  ? pvclock_read_flags+0x160/0x160
[  706.066577]  ? trace_hardirqs_on+0x310/0x310
[  706.071006]  ? kvm_clock_read+0x18/0x30
[  706.075006]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  706.080025]  ? ktime_get_update_offsets_now+0x3b3/0x540
[  706.085394]  ? do_timer+0x50/0x50
[  706.088863]  ? rwlock_bug.part.2+0x90/0x90
[  706.093098]  ? trace_hardirqs_on+0x310/0x310
[  706.097516]  ? rcu_softirq_qs+0x20/0x20
[  706.101526]  hrtimer_interrupt+0x313/0x780
[  706.105785]  smp_apic_timer_interrupt+0x1a1/0x760
[  706.110627]  ? smp_call_function_single_interrupt+0x650/0x650
[  706.116510]  ? interrupt_entry+0xb5/0xc0
[  706.120583]  ? trace_hardirqs_off_caller+0xbb/0x310
[  706.125596]  ? trace_hardirqs_off_caller+0xbb/0x310
[  706.130615]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  706.135457]  ? trace_hardirqs_on_caller+0x310/0x310
[  706.140471]  ? trace_hardirqs_on_caller+0x310/0x310
[  706.145486]  ? task_prio+0x50/0x50
[  706.149026]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  706.154561]  ? check_preemption_disabled+0x48/0x280
[  706.159597]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  706.164448]  apic_timer_interrupt+0xf/0x20
[  706.168674]  </IRQ>
[  706.170940] RIP: 0010:kmem_cache_alloc_node+0x247/0x730
[  706.176303] Code: 3f 7e 0f 85 32 ff ff ff e8 15 eb 3d ff e9 28 ff ff ff e8 bc 20 c3 ff 48 83 3d 54 69 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 42 f3
[  706.195224] RSP: 0000:ffff8881d9aff410 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[  706.202943] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1103b35e15c
[  706.210206] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282
[  706.217470] RBP: ffff8881d9aff480 R08: ffff8881d9af0ae0 R09: 0000000000000002
[  706.224739] R10: 0000000000000000 R11: ffff8881d9af0240 R12: ffff8881d9beec00
[  706.232033] R13: ffff8881d9beec00 R14: 0000000000000000 R15: 0000000000000282
[  706.239340]  ? ipv6_get_ifaddr+0x42e/0x620
[  706.243604]  __alloc_skb+0x119/0x770
[  706.247315]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  706.252594]  ? netdev_alloc_frag+0x1f0/0x1f0
[  706.257003]  ? lock_downgrade+0x900/0x900
[  706.261158]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  706.266701]  ? refcount_sub_and_test_checked+0x203/0x310
[  706.272161]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  706.277624]  ? addrconf_rs_timer+0x690/0x690
[  706.282048]  ndisc_alloc_skb+0x144/0x340
[  706.286113]  ndisc_send_rs+0x331/0x6e0
[  706.290007]  addrconf_rs_timer+0x314/0x690
[  706.294250]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  706.298497]  call_timer_fn+0x272/0x920
[  706.302384]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  706.306616]  ? process_timeout+0x40/0x40
[  706.310696]  ? __run_timers+0x7da/0xc70
[  706.314671]  ? _raw_spin_unlock_irq+0x27/0x80
[  706.319164]  ? _raw_spin_unlock_irq+0x27/0x80
[  706.323662]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  706.327938]  ? lockdep_hardirqs_on+0x296/0x5b0
[  706.332520]  ? trace_hardirqs_on+0xbd/0x310
[  706.336880]  ? kasan_check_read+0x11/0x20
[  706.341025]  ? __run_timers+0x7da/0xc70
[  706.344996]  ? trace_hardirqs_off_caller+0x310/0x310
[  706.350113]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  706.354343]  __run_timers+0x7e5/0xc70
[  706.358205]  ? timer_fixup_init+0x70/0x70
[  706.362352]  ? _raw_spin_unlock_irq+0x27/0x80
[  706.366868]  ? _raw_spin_unlock_irq+0x27/0x80
[  706.371365]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  706.375949]  ? trace_hardirqs_on+0xbd/0x310
[  706.380279]  ? kasan_check_read+0x11/0x20
[  706.384429]  ? finish_task_switch+0x1f4/0x910
[  706.388949]  ? trace_hardirqs_off_caller+0x310/0x310
[  706.394048]  ? compat_start_thread+0x80/0x80
[  706.398473]  ? pvclock_read_flags+0x160/0x160
[  706.402968]  ? __switch_to_asm+0x34/0x70
[  706.407091]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  706.412627]  ? check_preemption_disabled+0x48/0x280
[  706.417651]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  706.423185]  ? rcu_pm_notify+0xc0/0xc0
[  706.427079]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  706.432614]  ? check_preemption_disabled+0x48/0x280
[  706.437632]  run_timer_softirq+0x52/0xb0
[  706.441708]  ? rcu_read_lock_sched_held+0x14f/0x180
[  706.446725]  __do_softirq+0x308/0xb7e
[  706.450534]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  706.455298]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  706.460402]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  706.465881]  ? trace_hardirqs_on+0x310/0x310
[  706.470295]  ? schedule+0x108/0x460
[  706.473941]  ? trace_hardirqs_off+0xb8/0x310
[  706.478352]  ? smpboot_thread_fn+0x68b/0xa00
[  706.482787]  ? trace_hardirqs_on+0x310/0x310
[  706.487196]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  706.492733]  ? check_preemption_disabled+0x48/0x280
[  706.497774]  ? takeover_tasklets+0xa90/0xa90
[  706.502186]  run_ksoftirqd+0x5e/0x100
[  706.505986]  smpboot_thread_fn+0x68b/0xa00
[  706.510220]  ? sort_range+0x30/0x30
[  706.513859]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  706.518978]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  706.524524]  ? __kthread_parkme+0xfb/0x1a0
[  706.528766]  ? sort_range+0x30/0x30
[  706.532396]  kthread+0x35a/0x440
[  706.535832]  ? kthread_stop+0x900/0x900
[  706.539837]  ret_from_fork+0x3a/0x50
[  706.543562] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  706.543968] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  706.550598] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  706.550603] Call Trace:
[  706.550608]  <IRQ>
[  706.550625]  dump_stack+0x244/0x39d
[  706.550642]  ? dump_stack_print_info.cold.1+0x20/0x20
[  706.557655] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  706.566958]  warn_alloc.cold.116+0xb7/0x1bd
[  706.569507] ksoftirqd/0 cpuset=/ mems_allowed=0
[  706.571648]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  706.604676]  ? lock_downgrade+0x900/0x900
[  706.608832]  ? trace_hardirqs_off+0xb8/0x310
[  706.613261]  ? trace_hardirqs_off+0xb8/0x310
[  706.617675]  __alloc_pages_slowpath+0x2651/0x2de0
[  706.622543]  ? warn_alloc+0x120/0x120
[  706.626340]  ? print_usage_bug+0xc0/0xc0
[  706.630398]  ? warn_alloc+0x120/0x120
[  706.634216]  ? warn_alloc+0x120/0x120
[  706.638013]  ? print_usage_bug+0xc0/0xc0
[  706.642072]  ? kvm_clock_read+0x18/0x30
[  706.646061]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  706.651078]  ? print_usage_bug+0xc0/0xc0
[  706.655143]  ? __lock_acquire+0x62f/0x4c20
[  706.659420]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  706.664957]  ? should_fail+0x22d/0xd01
[  706.668840]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  706.674140]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  706.679248]  ? __lock_acquire+0x62f/0x4c20
[  706.683499]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  706.689077]  ? __lock_acquire+0x62f/0x4c20
[  706.693316]  ? should_fail+0x22d/0xd01
[  706.697197]  ? rcu_irq_exit+0x1a2/0x390
[  706.701204]  ? mark_held_locks+0x130/0x130
[  706.705465]  ? mark_held_locks+0x130/0x130
[  706.709701]  ? mark_held_locks+0xc7/0x130
[  706.713858]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  706.718905]  ? zap_class+0x640/0x640
[  706.722633]  ? print_usage_bug+0xc0/0xc0
[  706.726709]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  706.732331]  ? check_preemption_disabled+0x48/0x280
[  706.737356]  ? __lock_is_held+0xb5/0x140
[  706.741450]  __alloc_pages_nodemask+0xad8/0xea0
[  706.746129]  ? zap_class+0x640/0x640
[  706.749858]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  706.754920]  ? find_held_lock+0x36/0x1c0
[  706.759002]  ? ____cache_alloc_node+0x1c7/0x1e0
[  706.763685]  ? lock_downgrade+0x900/0x900
[  706.767838]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  706.773379]  cache_grow_begin+0xa5/0x8c0
[  706.777440]  ? do_raw_spin_unlock+0xa7/0x330
[  706.781884]  fallback_alloc+0x204/0x2e0
[  706.785904]  ____cache_alloc_node+0x1c7/0x1e0
[  706.790398]  kmem_cache_alloc_node+0xe3/0x730
[  706.794892]  ? ipv6_get_ifaddr+0x42e/0x620
[  706.799135]  __alloc_skb+0x119/0x770
[  706.802862]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  706.808154]  ? netdev_alloc_frag+0x1f0/0x1f0
[  706.812604]  ? lock_downgrade+0x900/0x900
[  706.816764]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  706.822307]  ? refcount_sub_and_test_checked+0x203/0x310
[  706.827765]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  706.833216]  ? addrconf_rs_timer+0x690/0x690
[  706.837633]  ndisc_alloc_skb+0x144/0x340
[  706.841713]  ndisc_send_rs+0x331/0x6e0
[  706.845618]  addrconf_rs_timer+0x314/0x690
[  706.849902]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  706.854143]  call_timer_fn+0x272/0x920
[  706.858028]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  706.862263]  ? process_timeout+0x40/0x40
[  706.866340]  ? mark_held_locks+0xc7/0x130
[  706.870493]  ? _raw_spin_unlock_irq+0x27/0x80
[  706.874988]  ? _raw_spin_unlock_irq+0x27/0x80
[  706.879477]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  706.883710]  ? lockdep_hardirqs_on+0x296/0x5b0
[  706.888300]  ? trace_hardirqs_on+0xbd/0x310
[  706.892616]  ? kasan_check_read+0x11/0x20
[  706.896763]  ? __run_timers+0x7da/0xc70
[  706.900739]  ? trace_hardirqs_off_caller+0x310/0x310
[  706.905852]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  706.910090]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  706.914318]  __run_timers+0x7e5/0xc70
[  706.918157]  ? timer_fixup_init+0x70/0x70
[  706.922308]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  706.927341]  ? zap_class+0x640/0x640
[  706.931088]  ? print_usage_bug+0xc0/0xc0
[  706.935150]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  706.940357]  ? find_held_lock+0x36/0x1c0
[  706.944424]  ? zap_class+0x640/0x640
[  706.948153]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  706.953695]  ? check_preemption_disabled+0x48/0x280
[  706.958726]  ? __lock_is_held+0xb5/0x140
[  706.962805]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  706.968355]  ? check_preemption_disabled+0x48/0x280
[  706.973385]  run_timer_softirq+0x52/0xb0
[  706.977445]  ? rcu_read_lock_sched_held+0x14f/0x180
[  706.982457]  __do_softirq+0x308/0xb7e
[  706.986262]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  706.990770]  ? lock_downgrade+0x900/0x900
[  706.994952]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  707.000063]  ? pvclock_read_flags+0x160/0x160
[  707.004562]  ? lapic_next_event+0x5a/0x90
[  707.008727]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  707.014293]  ? kvm_clock_read+0x18/0x30
[  707.018284]  ? kvm_sched_clock_read+0x9/0x20
[  707.022689]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  707.028247]  ? check_preemption_disabled+0x48/0x280
[  707.033273]  irq_exit+0x17f/0x1c0
[  707.036761]  smp_apic_timer_interrupt+0x1cb/0x760
[  707.041604]  ? smp_reschedule_interrupt+0x109/0x650
[  707.046617]  ? smp_call_function_single_interrupt+0x650/0x650
[  707.052501]  ? interrupt_entry+0xb5/0xc0
[  707.056561]  ? trace_hardirqs_off_caller+0xbb/0x310
[  707.061571]  ? trace_hardirqs_off_caller+0xbb/0x310
[  707.066603]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  707.071472]  ? trace_hardirqs_on_caller+0x310/0x310
[  707.076497]  ? trace_hardirqs_on_caller+0x310/0x310
[  707.081540]  ? task_prio+0x50/0x50
[  707.085094]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  707.090629]  ? check_preemption_disabled+0x48/0x280
[  707.095649]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  707.100498]  apic_timer_interrupt+0xf/0x20
[  707.104720]  </IRQ>
[  707.106971] RIP: 0010:dump_stack+0x358/0x39d
[  707.111380] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  707.130283] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  707.137985] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  707.145263] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  707.152530] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  707.159796] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  707.167076] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  707.174364]  ? dump_stack+0x34f/0x39d
[  707.178181]  ? dump_stack_print_info.cold.1+0x20/0x20
[  707.183369]  ? mark_held_locks+0x130/0x130
[  707.187599]  ? mark_held_locks+0x130/0x130
[  707.191839]  dump_header+0x27b/0xf72
[  707.195559]  ? pagefault_out_of_memory+0x197/0x197
[  707.200504]  ? __lock_acquire+0x62f/0x4c20
[  707.204737]  ? percpu_ref_get_many+0x240/0x240
[  707.209331]  ? print_usage_bug+0xc0/0xc0
[  707.213396]  ? zap_class+0x640/0x640
[  707.217109]  ? print_usage_bug+0xc0/0xc0
[  707.221168]  ? print_usage_bug+0xc0/0xc0
[  707.225229]  ? zap_class+0x640/0x640
[  707.228945]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  707.234494]  ? find_held_lock+0x36/0x1c0
[  707.238574]  ? mark_held_locks+0xc7/0x130
[  707.242730]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  707.247836]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  707.252937]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  707.257519]  ? trace_hardirqs_on+0xbd/0x310
[  707.261837]  ? kasan_check_read+0x11/0x20
[  707.265983]  ? ___ratelimit+0x3b4/0x672
[  707.269954]  ? trace_hardirqs_off_caller+0x310/0x310
[  707.275058]  ? trace_hardirqs_on+0x310/0x310
[  707.279477]  ? lock_downgrade+0x900/0x900
[  707.283630]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  707.288779]  ? ___ratelimit+0x3b9/0x672
[  707.292772]  ? idr_get_free+0xf70/0xf70
[  707.296762]  ? find_held_lock+0x36/0x1c0
[  707.300837]  oom_kill_process.cold.27+0x10/0x903
[  707.305593]  ? zap_class+0x640/0x640
[  707.309319]  ? check_preemption_disabled+0x48/0x280
[  707.314335]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  707.319378]  ? kasan_check_read+0x11/0x20
[  707.323522]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  707.328799]  ? oom_evaluate_task+0x540/0x540
[  707.333213]  ? find_held_lock+0x36/0x1c0
[  707.337287]  ? out_of_memory+0x974/0x1430
[  707.341448]  ? lock_downgrade+0x900/0x900
[  707.345595]  ? check_preemption_disabled+0x48/0x280
[  707.350610]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  707.355550]  ? kasan_check_read+0x11/0x20
[  707.359711]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  707.364983]  ? rcu_softirq_qs+0x20/0x20
[  707.368961]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  707.374493]  ? oom_evaluate_task+0x302/0x540
[  707.378904]  out_of_memory+0xa84/0x1430
[  707.382893]  ? oom_killer_disable+0x3a0/0x3a0
[  707.387387]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  707.392318]  ? __ww_mutex_check_waiters+0x160/0x160
[  707.397344]  __alloc_pages_slowpath+0x232c/0x2de0
[  707.402208]  ? warn_alloc+0x120/0x120
[  707.406006]  ? mark_held_locks+0x130/0x130
[  707.410283]  ? find_get_entry+0xaae/0x1120
[  707.414555]  ? filemap_map_pages+0x1a20/0x1a20
[  707.419141]  ? zap_class+0x640/0x640
[  707.422858]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  707.428398]  ? check_preemption_disabled+0x48/0x280
[  707.433415]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  707.438954]  ? should_fail+0x22d/0xd01
[  707.442845]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  707.447948]  ? zap_class+0x640/0x640
[  707.451684]  ? __lock_is_held+0xb5/0x140
[  707.455752]  ? mark_held_locks+0x130/0x130
[  707.460030]  ? lock_release+0xa00/0xa00
[  707.464013]  ? perf_trace_sched_process_exec+0x860/0x860
[  707.469462]  ? xa_load+0x2ba/0x460
[  707.473004]  ? lock_downgrade+0x900/0x900
[  707.477156]  ? __might_sleep+0x95/0x190
[  707.481134]  __alloc_pages_nodemask+0xad8/0xea0
[  707.485806]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  707.490833]  ? __page_cache_alloc+0x191/0x5c0
[  707.495318]  ? xa_load+0x2e1/0x460
[  707.498853]  ? xa_clear_mark+0x40/0x40
[  707.502770]  ? zap_class+0x640/0x640
[  707.506503]  ? zap_class+0x640/0x640
[  707.510244]  ? zap_class+0x640/0x640
[  707.513969]  ? __do_page_cache_readahead+0x663/0x810
[  707.519090]  ? find_held_lock+0x36/0x1c0
[  707.523153]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  707.528698]  alloc_pages_current+0x173/0x350
[  707.533130]  __page_cache_alloc+0x38c/0x5c0
[  707.537448]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  707.542378]  ? kasan_check_read+0x11/0x20
[  707.546551]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  707.551831]  ? generic_perform_write+0x6a0/0x6a0
[  707.556584]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  707.562118]  ? check_preemption_disabled+0x48/0x280
[  707.567140]  filemap_fault+0x1595/0x25f0
[  707.571211]  ? __lock_page_or_retry+0xa00/0xa00
[  707.575880]  ? mark_held_locks+0x130/0x130
[  707.580137]  ? filemap_map_pages+0xd6b/0x1a20
[  707.584630]  ? lock_downgrade+0x900/0x900
[  707.588807]  ? check_preemption_disabled+0x48/0x280
[  707.593840]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  707.598790]  ? kasan_check_read+0x11/0x20
[  707.602939]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  707.608224]  ? rcu_softirq_qs+0x20/0x20
[  707.612224]  ? filemap_map_pages+0xd92/0x1a20
[  707.616723]  ? print_usage_bug+0xc0/0xc0
[  707.620797]  ? find_get_entries_tag+0x1400/0x1400
[  707.625651]  ? __kasan_slab_free+0x102/0x150
[  707.630072]  ? kasan_slab_free+0xe/0x10
[  707.634057]  ? kmem_cache_free+0x83/0x290
[  707.638203]  ? __sigqueue_free.part.29+0x74/0x90
[  707.642976]  ? lock_acquire+0x1ed/0x520
[  707.646952]  ? ext4_filemap_fault+0x7a/0xad
[  707.651307]  ? lock_release+0xa00/0xa00
[  707.655275]  ? perf_trace_sched_process_exec+0x860/0x860
[  707.660728]  ? print_usage_bug+0xc0/0xc0
[  707.664792]  ? print_usage_bug+0xc0/0xc0
[  707.668861]  ? down_read+0x8d/0x120
[  707.672486]  ? ext4_filemap_fault+0x7a/0xad
[  707.676807]  ? __down_interruptible+0x700/0x700
[  707.681484]  ext4_filemap_fault+0x82/0xad
[  707.685632]  __do_fault+0x100/0x6b0
[  707.689283]  ? pmd_devmap_trans_unstable+0x220/0x220
[  707.694386]  ? mark_held_locks+0x130/0x130
[  707.698621]  ? mark_held_locks+0x130/0x130
[  707.702883]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  707.708432]  ? rcu_pm_notify+0xc0/0xc0
[  707.712329]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  707.717874]  __handle_mm_fault+0x3ea0/0x5be0
[  707.722297]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  707.727135]  ? _raw_spin_unlock_irq+0x27/0x80
[  707.731631]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  707.736227]  ? trace_hardirqs_on+0xbd/0x310
[  707.740547]  ? kasan_check_read+0x11/0x20
[  707.744692]  ? __set_current_blocked+0xdf/0x120
[  707.749363]  ? trace_hardirqs_off_caller+0x310/0x310
[  707.754492]  ? zap_class+0x640/0x640
[  707.758203]  ? zap_class+0x640/0x640
[  707.761927]  ? find_held_lock+0x36/0x1c0
[  707.765996]  ? handle_mm_fault+0x42a/0xc70
[  707.770229]  ? lock_downgrade+0x900/0x900
[  707.774374]  ? check_preemption_disabled+0x48/0x280
[  707.779390]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  707.784316]  ? kasan_check_read+0x11/0x20
[  707.788461]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  707.793736]  ? rcu_softirq_qs+0x20/0x20
[  707.797716]  ? trace_hardirqs_off_caller+0x310/0x310
[  707.802816]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  707.808349]  ? check_preemption_disabled+0x48/0x280
[  707.813399]  handle_mm_fault+0x54f/0xc70
[  707.817460]  ? __handle_mm_fault+0x5be0/0x5be0
[  707.822040]  ? find_vma+0x34/0x190
[  707.825587]  __do_page_fault+0x5e8/0xe60
[  707.829645]  ? exit_to_usermode_loop+0x1f4/0x380
[  707.834406]  do_page_fault+0xf2/0x7e0
[  707.838202]  ? vmalloc_sync_all+0x30/0x30
[  707.842362]  ? error_entry+0x70/0xd0
[  707.846073]  ? trace_hardirqs_off_caller+0xbb/0x310
[  707.851088]  ? trace_hardirqs_on_caller+0xc0/0x310
[  707.856041]  ? syscall_return_slowpath+0x5e0/0x5e0
[  707.860976]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  707.865819]  ? trace_hardirqs_on_caller+0x310/0x310
[  707.870837]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  707.876306]  ? prepare_exit_to_usermode+0x291/0x3b0
[  707.881325]  ? page_fault+0x8/0x30
[  707.884867]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  707.889736]  ? page_fault+0x8/0x30
[  707.893292]  page_fault+0x1e/0x30
[  707.896744] RIP: 0033:0x45db60
[  707.899961] Code: Bad RIP value.
[  707.903320] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  707.908681] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  707.915943] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  707.923202] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  707.930469] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  707.937735] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  707.945034] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  707.945036] Mem-Info:
[  707.945066] active_anon:42936 inactive_anon:306 isolated_anon:0
[  707.945066]  active_file:13 inactive_file:13 isolated_file:0
[  707.945066]  unevictable:0 dirty:0 writeback:0 unstable:0
[  707.945066]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  707.945066]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  707.945066]  free:13785 free_pcp:492 free_cma:0
[  707.951877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  707.954313] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  707.987104] Call Trace:
[  707.996446] 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
[  708.024044]  dump_stack+0x244/0x39d
[  708.026597] lowmem_reserve[]: 0 2818 6321 6321
[  708.052701]  ? dump_stack_print_info.cold.1+0x20/0x20
[  708.056301] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  708.060881]  warn_alloc.cold.116+0xb7/0x1bd
[  708.066037] lowmem_reserve[]: 0 0 3503 3503
[  708.093356]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  708.097650] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  708.101963]  ? lock_downgrade+0x900/0x900
[  708.106778] lowmem_reserve[]: 0 0 0 0
[  708.135944]  ? trace_hardirqs_off+0xb8/0x310
[  708.140063] 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
[  708.143863]  ? trace_hardirqs_off+0xb8/0x310
[  708.148253] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  708.161782]  __alloc_pages_slowpath+0x2651/0x2de0
[  708.166157] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  708.181354]  ? warn_alloc+0x120/0x120
[  708.186154] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  708.201315]  ? print_usage_bug+0xc0/0xc0
[  708.205092] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  708.213925]  ? warn_alloc+0x120/0x120
[  708.217958] 380 total pagecache pages
[  708.226522]  ? warn_alloc+0x120/0x120
[  708.230310] 0 pages in swap cache
[  708.234108]  ? print_usage_bug+0xc0/0xc0
[  708.237896] Swap cache stats: add 0, delete 0, find 0/0
[  708.241335]  ? print_usage_bug+0xc0/0xc0
[  708.245366] Free swap  = 0kB
[  708.250718]  ? __lock_acquire+0x62f/0x4c20
[  708.254750] Total swap = 0kB
[  708.257785]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  708.261989] 1965979 pages RAM
[  708.264998]  ? should_fail+0x22d/0xd01
[  708.270506] 0 pages HighMem/MovableOnly
[  708.273606]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  708.277468] 342854 pages reserved
[  708.281429]  ? __lock_acquire+0x62f/0x4c20
[  708.286510] 0 pages cma reserved
[  708.289957]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  708.294224] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  708.297515]  ? __lock_acquire+0x62f/0x4c20
[  708.297530]  ? should_fail+0x22d/0xd01
[  708.302711] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  708.309093]  ? find_held_lock+0x36/0x1c0
[  708.313305] syz-fuzzer cpuset=/ mems_allowed=0
[  708.317188]  ? mark_held_locks+0x130/0x130
[  708.340237]  ? mark_held_locks+0x130/0x130
[  708.344468]  ? zap_class+0x640/0x640
[  708.348178]  ? zap_class+0x640/0x640
[  708.351891]  ? print_usage_bug+0xc0/0xc0
[  708.355950]  ? do_raw_spin_unlock+0xa7/0x330
[  708.360362]  ? zap_class+0x640/0x640
[  708.364078]  ? print_usage_bug+0xc0/0xc0
[  708.368155]  ? wq_watchdog_touch+0x9c/0xfe
[  708.372390]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  708.377931]  ? check_preemption_disabled+0x48/0x280
[  708.382958]  ? __lock_is_held+0xb5/0x140
[  708.387036]  __alloc_pages_nodemask+0xad8/0xea0
[  708.391703]  ? zap_class+0x640/0x640
[  708.395420]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  708.400468]  ? find_held_lock+0x36/0x1c0
[  708.404537]  ? ____cache_alloc_node+0x1c7/0x1e0
[  708.409211]  ? lock_downgrade+0x900/0x900
[  708.413365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  708.418905]  cache_grow_begin+0xa5/0x8c0
[  708.422962]  ? do_raw_spin_unlock+0xa7/0x330
[  708.427376]  fallback_alloc+0x204/0x2e0
[  708.431377]  ____cache_alloc_node+0x1c7/0x1e0
[  708.435876]  kmem_cache_alloc_node+0xe3/0x730
[  708.440372]  ? ipv6_get_ifaddr+0x42e/0x620
[  708.444613]  __alloc_skb+0x119/0x770
[  708.448319]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  708.453608]  ? netdev_alloc_frag+0x1f0/0x1f0
[  708.458029]  ? lock_downgrade+0x900/0x900
[  708.462197]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  708.467750]  ? refcount_sub_and_test_checked+0x203/0x310
[  708.473234]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  708.478682]  ? addrconf_rs_timer+0x690/0x690
[  708.483103]  ndisc_alloc_skb+0x144/0x340
[  708.487181]  ndisc_send_rs+0x331/0x6e0
[  708.491076]  addrconf_rs_timer+0x314/0x690
[  708.495316]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  708.499562]  call_timer_fn+0x272/0x920
[  708.503451]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  708.507683]  ? process_timeout+0x40/0x40
[  708.511753]  ? __run_timers+0x7da/0xc70
[  708.515762]  ? _raw_spin_unlock_irq+0x27/0x80
[  708.520263]  ? _raw_spin_unlock_irq+0x27/0x80
[  708.524767]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  708.529006]  ? lockdep_hardirqs_on+0x296/0x5b0
[  708.533590]  ? trace_hardirqs_on+0xbd/0x310
[  708.537925]  ? kasan_check_read+0x11/0x20
[  708.542072]  ? __run_timers+0x7da/0xc70
[  708.546050]  ? trace_hardirqs_off_caller+0x310/0x310
[  708.551155]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  708.555875]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  708.560103]  __run_timers+0x7e5/0xc70
[  708.563906]  ? timer_fixup_init+0x70/0x70
[  708.568067]  ? _raw_spin_unlock_irq+0x27/0x80
[  708.572562]  ? _raw_spin_unlock_irq+0x27/0x80
[  708.577171]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  708.581751]  ? trace_hardirqs_on+0xbd/0x310
[  708.586115]  ? kasan_check_read+0x11/0x20
[  708.590266]  ? finish_task_switch+0x1f4/0x910
[  708.594798]  ? trace_hardirqs_off_caller+0x310/0x310
[  708.599900]  ? compat_start_thread+0x80/0x80
[  708.604328]  ? pvclock_read_flags+0x160/0x160
[  708.608822]  ? __switch_to_asm+0x34/0x70
[  708.612886]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  708.618421]  ? check_preemption_disabled+0x48/0x280
[  708.623463]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  708.629002]  ? rcu_pm_notify+0xc0/0xc0
[  708.632898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  708.638450]  ? check_preemption_disabled+0x48/0x280
[  708.643471]  run_timer_softirq+0x52/0xb0
[  708.647530]  ? rcu_read_lock_sched_held+0x14f/0x180
[  708.652559]  __do_softirq+0x308/0xb7e
[  708.656361]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  708.661123]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  708.666227]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  708.671677]  ? trace_hardirqs_on+0x310/0x310
[  708.676106]  ? schedule+0x108/0x460
[  708.679743]  ? trace_hardirqs_off+0xb8/0x310
[  708.684193]  ? smpboot_thread_fn+0x68b/0xa00
[  708.688719]  ? trace_hardirqs_on+0x310/0x310
[  708.693130]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  708.698670]  ? check_preemption_disabled+0x48/0x280
[  708.703683]  ? takeover_tasklets+0xa90/0xa90
[  708.708104]  run_ksoftirqd+0x5e/0x100
[  708.711921]  smpboot_thread_fn+0x68b/0xa00
[  708.716183]  ? sort_range+0x30/0x30
[  708.719840]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  708.724947]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  708.730485]  ? __kthread_parkme+0xfb/0x1a0
[  708.734722]  ? sort_range+0x30/0x30
[  708.738352]  kthread+0x35a/0x440
[  708.741726]  ? kthread_stop+0x900/0x900
[  708.745706]  ret_from_fork+0x3a/0x50
[  708.749462] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  708.749530] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  708.756470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  708.756478] Call Trace:
[  708.763168] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  708.772324]  <IRQ>
[  708.774893] ksoftirqd/0 cpuset=/ mems_allowed=0
[  708.785212]  dump_stack+0x244/0x39d
[  708.795612]  ? dump_stack_print_info.cold.1+0x20/0x20
[  708.800817]  warn_alloc.cold.116+0xb7/0x1bd
[  708.805139]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  708.809985]  ? lock_downgrade+0x900/0x900
[  708.814137]  ? trace_hardirqs_off+0xb8/0x310
[  708.818545]  ? trace_hardirqs_off+0xb8/0x310
[  708.822989]  __alloc_pages_slowpath+0x2651/0x2de0
[  708.827854]  ? warn_alloc+0x120/0x120
[  708.831657]  ? print_usage_bug+0xc0/0xc0
[  708.835733]  ? warn_alloc+0x120/0x120
[  708.839564]  ? warn_alloc+0x120/0x120
[  708.843380]  ? print_usage_bug+0xc0/0xc0
[  708.847454]  ? kvm_clock_read+0x18/0x30
[  708.851427]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  708.856443]  ? print_usage_bug+0xc0/0xc0
[  708.860532]  ? __lock_acquire+0x62f/0x4c20
[  708.864787]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  708.870340]  ? should_fail+0x22d/0xd01
[  708.874222]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  708.879505]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  708.884605]  ? __lock_acquire+0x62f/0x4c20
[  708.888853]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  708.893981]  ? __lock_acquire+0x62f/0x4c20
[  708.898226]  ? should_fail+0x22d/0xd01
[  708.902109]  ? rcu_irq_exit+0x1a2/0x390
[  708.906088]  ? mark_held_locks+0x130/0x130
[  708.910323]  ? mark_held_locks+0x130/0x130
[  708.914556]  ? mark_held_locks+0xc7/0x130
[  708.918718]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  708.923746]  ? zap_class+0x640/0x640
[  708.927464]  ? print_usage_bug+0xc0/0xc0
[  708.931526]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  708.937079]  ? check_preemption_disabled+0x48/0x280
[  708.942101]  ? __lock_is_held+0xb5/0x140
[  708.946169]  __alloc_pages_nodemask+0xad8/0xea0
[  708.950849]  ? zap_class+0x640/0x640
[  708.954585]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  708.959627]  ? find_held_lock+0x36/0x1c0
[  708.963696]  ? ____cache_alloc_node+0x1c7/0x1e0
[  708.968361]  ? lock_downgrade+0x900/0x900
[  708.972547]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  708.978086]  cache_grow_begin+0xa5/0x8c0
[  708.982145]  ? do_raw_spin_unlock+0xa7/0x330
[  708.986559]  fallback_alloc+0x204/0x2e0
[  708.990540]  ____cache_alloc_node+0x1c7/0x1e0
[  708.995044]  kmem_cache_alloc_node+0xe3/0x730
[  708.999540]  ? ipv6_get_ifaddr+0x42e/0x620
[  709.003794]  __alloc_skb+0x119/0x770
[  709.007506]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  709.012789]  ? netdev_alloc_frag+0x1f0/0x1f0
[  709.017215]  ? lock_downgrade+0x900/0x900
[  709.021387]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  709.026951]  ? refcount_sub_and_test_checked+0x203/0x310
[  709.032402]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  709.037852]  ? addrconf_rs_timer+0x690/0x690
[  709.042270]  ndisc_alloc_skb+0x144/0x340
[  709.046357]  ndisc_send_rs+0x331/0x6e0
[  709.050246]  addrconf_rs_timer+0x314/0x690
[  709.054486]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  709.058742]  call_timer_fn+0x272/0x920
[  709.062666]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  709.066898]  ? process_timeout+0x40/0x40
[  709.070967]  ? mark_held_locks+0xc7/0x130
[  709.075161]  ? _raw_spin_unlock_irq+0x27/0x80
[  709.079683]  ? _raw_spin_unlock_irq+0x27/0x80
[  709.084175]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  709.088438]  ? lockdep_hardirqs_on+0x296/0x5b0
[  709.093019]  ? trace_hardirqs_on+0xbd/0x310
[  709.097339]  ? kasan_check_read+0x11/0x20
[  709.101481]  ? __run_timers+0x7da/0xc70
[  709.105479]  ? trace_hardirqs_off_caller+0x310/0x310
[  709.110582]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  709.114852]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  709.119083]  __run_timers+0x7e5/0xc70
[  709.122891]  ? timer_fixup_init+0x70/0x70
[  709.127041]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  709.132070]  ? zap_class+0x640/0x640
[  709.135803]  ? print_usage_bug+0xc0/0xc0
[  709.139862]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  709.145069]  ? find_held_lock+0x36/0x1c0
[  709.149136]  ? zap_class+0x640/0x640
[  709.152855]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  709.158393]  ? check_preemption_disabled+0x48/0x280
[  709.163416]  ? __lock_is_held+0xb5/0x140
[  709.167478]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  709.173012]  ? check_preemption_disabled+0x48/0x280
[  709.178076]  run_timer_softirq+0x52/0xb0
[  709.182138]  ? rcu_read_lock_sched_held+0x14f/0x180
[  709.187180]  __do_softirq+0x308/0xb7e
[  709.191002]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  709.195491]  ? lock_downgrade+0x900/0x900
[  709.199659]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  709.204785]  ? pvclock_read_flags+0x160/0x160
[  709.209293]  ? lapic_next_event+0x5a/0x90
[  709.213442]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  709.219000]  ? kvm_clock_read+0x18/0x30
[  709.222972]  ? kvm_sched_clock_read+0x9/0x20
[  709.227382]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  709.232916]  ? check_preemption_disabled+0x48/0x280
[  709.237938]  irq_exit+0x17f/0x1c0
[  709.241392]  smp_apic_timer_interrupt+0x1cb/0x760
[  709.246242]  ? smp_reschedule_interrupt+0x109/0x650
[  709.251262]  ? smp_call_function_single_interrupt+0x650/0x650
[  709.257150]  ? interrupt_entry+0xb5/0xc0
[  709.261210]  ? trace_hardirqs_off_caller+0xbb/0x310
[  709.266227]  ? trace_hardirqs_off_caller+0xbb/0x310
[  709.271243]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  709.276091]  ? trace_hardirqs_on_caller+0x310/0x310
[  709.281107]  ? trace_hardirqs_on_caller+0x310/0x310
[  709.286133]  ? task_prio+0x50/0x50
[  709.289673]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  709.295222]  ? check_preemption_disabled+0x48/0x280
[  709.300239]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  709.305088]  apic_timer_interrupt+0xf/0x20
[  709.309310]  </IRQ>
[  709.311577] RIP: 0010:dump_stack+0x358/0x39d
[  709.315988] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  709.334901] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  709.342622] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  709.349904] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  709.357176] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  709.364441] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  709.371703] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  709.378988]  ? dump_stack+0x34f/0x39d
[  709.382807]  ? dump_stack_print_info.cold.1+0x20/0x20
[  709.387998]  ? mark_held_locks+0x130/0x130
[  709.392246]  ? mark_held_locks+0x130/0x130
[  709.396485]  dump_header+0x27b/0xf72
[  709.400223]  ? pagefault_out_of_memory+0x197/0x197
[  709.405172]  ? __lock_acquire+0x62f/0x4c20
[  709.409451]  ? percpu_ref_get_many+0x240/0x240
[  709.414054]  ? print_usage_bug+0xc0/0xc0
[  709.418170]  ? zap_class+0x640/0x640
[  709.421890]  ? print_usage_bug+0xc0/0xc0
[  709.425951]  ? print_usage_bug+0xc0/0xc0
[  709.430029]  ? zap_class+0x640/0x640
[  709.433769]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  709.439321]  ? find_held_lock+0x36/0x1c0
[  709.443392]  ? mark_held_locks+0xc7/0x130
[  709.447555]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  709.452658]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  709.457771]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  709.462358]  ? trace_hardirqs_on+0xbd/0x310
[  709.466693]  ? kasan_check_read+0x11/0x20
[  709.470841]  ? ___ratelimit+0x3b4/0x672
[  709.474821]  ? trace_hardirqs_off_caller+0x310/0x310
[  709.479927]  ? trace_hardirqs_on+0x310/0x310
[  709.484337]  ? lock_downgrade+0x900/0x900
[  709.488487]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  709.493628]  ? ___ratelimit+0x3b9/0x672
[  709.497602]  ? idr_get_free+0xf70/0xf70
[  709.501584]  ? find_held_lock+0x36/0x1c0
[  709.505653]  oom_kill_process.cold.27+0x10/0x903
[  709.510407]  ? zap_class+0x640/0x640
[  709.514120]  ? check_preemption_disabled+0x48/0x280
[  709.519139]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  709.524095]  ? kasan_check_read+0x11/0x20
[  709.528241]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  709.533517]  ? oom_evaluate_task+0x540/0x540
[  709.537926]  ? find_held_lock+0x36/0x1c0
[  709.541994]  ? out_of_memory+0x974/0x1430
[  709.546143]  ? lock_downgrade+0x900/0x900
[  709.550296]  ? check_preemption_disabled+0x48/0x280
[  709.555315]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  709.560238]  ? kasan_check_read+0x11/0x20
[  709.564380]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  709.569655]  ? rcu_softirq_qs+0x20/0x20
[  709.573628]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  709.579175]  ? oom_evaluate_task+0x302/0x540
[  709.583581]  out_of_memory+0xa84/0x1430
[  709.587558]  ? oom_killer_disable+0x3a0/0x3a0
[  709.592048]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  709.596976]  ? __ww_mutex_check_waiters+0x160/0x160
[  709.602001]  __alloc_pages_slowpath+0x232c/0x2de0
[  709.606872]  ? warn_alloc+0x120/0x120
[  709.610670]  ? mark_held_locks+0x130/0x130
[  709.614926]  ? find_get_entry+0xaae/0x1120
[  709.619168]  ? filemap_map_pages+0x1a20/0x1a20
[  709.623749]  ? zap_class+0x640/0x640
[  709.627519]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  709.633072]  ? check_preemption_disabled+0x48/0x280
[  709.638129]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  709.643680]  ? should_fail+0x22d/0xd01
[  709.647570]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  709.652690]  ? zap_class+0x640/0x640
[  709.656428]  ? __lock_is_held+0xb5/0x140
[  709.660501]  ? mark_held_locks+0x130/0x130
[  709.664748]  ? lock_release+0xa00/0xa00
[  709.668733]  ? perf_trace_sched_process_exec+0x860/0x860
[  709.674188]  ? xa_load+0x2ba/0x460
[  709.677728]  ? lock_downgrade+0x900/0x900
[  709.681916]  ? __might_sleep+0x95/0x190
[  709.685897]  __alloc_pages_nodemask+0xad8/0xea0
[  709.690588]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  709.695620]  ? __page_cache_alloc+0x191/0x5c0
[  709.700111]  ? xa_load+0x2e1/0x460
[  709.703662]  ? xa_clear_mark+0x40/0x40
[  709.707551]  ? zap_class+0x640/0x640
[  709.711270]  ? zap_class+0x640/0x640
[  709.714983]  ? zap_class+0x640/0x640
[  709.718708]  ? __do_page_cache_readahead+0x663/0x810
[  709.723839]  ? find_held_lock+0x36/0x1c0
[  709.727907]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  709.733447]  alloc_pages_current+0x173/0x350
[  709.737856]  __page_cache_alloc+0x38c/0x5c0
[  709.742188]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  709.747131]  ? kasan_check_read+0x11/0x20
[  709.751324]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  709.756599]  ? generic_perform_write+0x6a0/0x6a0
[  709.761353]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  709.766887]  ? check_preemption_disabled+0x48/0x280
[  709.771912]  filemap_fault+0x1595/0x25f0
[  709.775983]  ? __lock_page_or_retry+0xa00/0xa00
[  709.780654]  ? mark_held_locks+0x130/0x130
[  709.784902]  ? filemap_map_pages+0xd6b/0x1a20
[  709.789395]  ? lock_downgrade+0x900/0x900
[  709.793544]  ? check_preemption_disabled+0x48/0x280
[  709.798562]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  709.803493]  ? kasan_check_read+0x11/0x20
[  709.807644]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  709.812947]  ? rcu_softirq_qs+0x20/0x20
[  709.816936]  ? filemap_map_pages+0xd92/0x1a20
[  709.821434]  ? print_usage_bug+0xc0/0xc0
[  709.825499]  ? find_get_entries_tag+0x1400/0x1400
[  709.830347]  ? __kasan_slab_free+0x102/0x150
[  709.834753]  ? kasan_slab_free+0xe/0x10
[  709.838737]  ? kmem_cache_free+0x83/0x290
[  709.842909]  ? __sigqueue_free.part.29+0x74/0x90
[  709.847713]  ? lock_acquire+0x1ed/0x520
[  709.851683]  ? ext4_filemap_fault+0x7a/0xad
[  709.856008]  ? lock_release+0xa00/0xa00
[  709.860008]  ? perf_trace_sched_process_exec+0x860/0x860
[  709.865458]  ? print_usage_bug+0xc0/0xc0
[  709.869517]  ? print_usage_bug+0xc0/0xc0
[  709.873600]  ? down_read+0x8d/0x120
[  709.877222]  ? ext4_filemap_fault+0x7a/0xad
[  709.881546]  ? __down_interruptible+0x700/0x700
[  709.886224]  ext4_filemap_fault+0x82/0xad
[  709.890372]  __do_fault+0x100/0x6b0
[  709.894002]  ? pmd_devmap_trans_unstable+0x220/0x220
[  709.899109]  ? mark_held_locks+0x130/0x130
[  709.903367]  ? mark_held_locks+0x130/0x130
[  709.907618]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  709.913171]  ? rcu_pm_notify+0xc0/0xc0
[  709.917065]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  709.922605]  __handle_mm_fault+0x3ea0/0x5be0
[  709.927024]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  709.931864]  ? _raw_spin_unlock_irq+0x27/0x80
[  709.936369]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  709.940949]  ? trace_hardirqs_on+0xbd/0x310
[  709.945264]  ? kasan_check_read+0x11/0x20
[  709.949416]  ? __set_current_blocked+0xdf/0x120
[  709.954099]  ? trace_hardirqs_off_caller+0x310/0x310
[  709.959211]  ? zap_class+0x640/0x640
[  709.962939]  ? zap_class+0x640/0x640
[  709.966662]  ? find_held_lock+0x36/0x1c0
[  709.970738]  ? handle_mm_fault+0x42a/0xc70
[  709.975011]  ? lock_downgrade+0x900/0x900
[  709.979191]  ? check_preemption_disabled+0x48/0x280
[  709.984242]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  709.989169]  ? kasan_check_read+0x11/0x20
[  709.993331]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  709.998608]  ? rcu_softirq_qs+0x20/0x20
[  710.002578]  ? trace_hardirqs_off_caller+0x310/0x310
[  710.007686]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  710.013224]  ? check_preemption_disabled+0x48/0x280
[  710.018260]  handle_mm_fault+0x54f/0xc70
[  710.022328]  ? __handle_mm_fault+0x5be0/0x5be0
[  710.026943]  ? find_vma+0x34/0x190
[  710.030491]  __do_page_fault+0x5e8/0xe60
[  710.034569]  ? exit_to_usermode_loop+0x1f4/0x380
[  710.039334]  do_page_fault+0xf2/0x7e0
[  710.043135]  ? vmalloc_sync_all+0x30/0x30
[  710.047289]  ? error_entry+0x70/0xd0
[  710.051002]  ? trace_hardirqs_off_caller+0xbb/0x310
[  710.056028]  ? trace_hardirqs_on_caller+0xc0/0x310
[  710.060959]  ? syscall_return_slowpath+0x5e0/0x5e0
[  710.065886]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  710.070726]  ? trace_hardirqs_on_caller+0x310/0x310
[  710.075745]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  710.081203]  ? prepare_exit_to_usermode+0x291/0x3b0
[  710.086211]  ? page_fault+0x8/0x30
[  710.089796]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  710.094685]  ? page_fault+0x8/0x30
[  710.098236]  page_fault+0x1e/0x30
[  710.101684] RIP: 0033:0x45db60
[  710.104885] Code: Bad RIP value.
[  710.108245] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  710.113607] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  710.120884] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  710.128162] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  710.135429] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  710.142726] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  710.150043] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  710.150048] warn_alloc_show_mem: 1 callbacks suppressed
[  710.150055] Mem-Info:
[  710.156886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  710.162252] active_anon:42936 inactive_anon:306 isolated_anon:0
[  710.162252]  active_file:13 inactive_file:13 isolated_file:0
[  710.162252]  unevictable:0 dirty:0 writeback:0 unstable:0
[  710.162252]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  710.162252]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  710.162252]  free:13785 free_pcp:492 free_cma:0
[  710.164649] Call Trace:
[  710.174030] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  710.206839]  dump_stack+0x244/0x39d
[  710.209394] 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
[  710.236973]  ? dump_stack_print_info.cold.1+0x20/0x20
[  710.240570] lowmem_reserve[]: 0 2818 6321 6321
[  710.266677]  warn_alloc.cold.116+0xb7/0x1bd
[  710.271834] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  710.276402]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  710.280708] lowmem_reserve[]: 0 0 3503 3503
[  710.307867]  ? lock_downgrade+0x900/0x900
[  710.312680] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  710.316994]  ? trace_hardirqs_off+0xb8/0x310
[  710.321115] lowmem_reserve[]: 0 0 0 0
[  710.350318]  ? trace_hardirqs_off+0xb8/0x310
[  710.354704] 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
[  710.358499]  __alloc_pages_slowpath+0x2651/0x2de0
[  710.362875] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  710.376411]  ? warn_alloc+0x120/0x120
[  710.381202] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  710.396365]  ? print_usage_bug+0xc0/0xc0
[  710.400160] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  710.415314]  ? warn_alloc+0x120/0x120
[  710.419355] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  710.428208]  ? warn_alloc+0x120/0x120
[  710.431981] 380 total pagecache pages
[  710.440544]  ? print_usage_bug+0xc0/0xc0
[  710.444328] 0 pages in swap cache
[  710.448114]  ? print_usage_bug+0xc0/0xc0
[  710.452164] Swap cache stats: add 0, delete 0, find 0/0
[  710.455609]  ? print_usage_bug+0xc0/0xc0
[  710.459644] Free swap  = 0kB
[  710.465011]  ? __lock_acquire+0x62f/0x4c20
[  710.469045] Total swap = 0kB
[  710.472057]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  710.476262] 1965979 pages RAM
[  710.479274]  ? should_fail+0x22d/0xd01
[  710.484800] 0 pages HighMem/MovableOnly
[  710.487897]  ? __lock_acquire+0x62f/0x4c20
[  710.491765] 342854 pages reserved
[  710.495732]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  710.499937] 0 pages cma reserved
[  710.503374]  ? __lock_acquire+0x62f/0x4c20
[  710.508549] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  710.511881]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  710.511894]  ? __lock_acquire+0x62f/0x4c20
[  710.511909]  ? should_fail+0x22d/0xd01
[  710.516176] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  710.522610]  ? mark_held_locks+0x130/0x130
[  710.527680] syz-fuzzer cpuset=/ mems_allowed=0
[  710.531905]  ? mark_held_locks+0x130/0x130
[  710.559524]  ? zap_class+0x640/0x640
[  710.563262]  ? zap_class+0x640/0x640
[  710.566974]  ? print_usage_bug+0xc0/0xc0
[  710.571036]  ? mark_held_locks+0x130/0x130
[  710.575275]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  710.580815]  ? check_preemption_disabled+0x48/0x280
[  710.585836]  ? __lock_is_held+0xb5/0x140
[  710.589903]  __alloc_pages_nodemask+0xad8/0xea0
[  710.594572]  ? zap_class+0x640/0x640
[  710.598291]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  710.603317]  ? find_held_lock+0x36/0x1c0
[  710.607387]  ? ____cache_alloc_node+0x1c7/0x1e0
[  710.612056]  ? lock_downgrade+0x900/0x900
[  710.616243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  710.621793]  cache_grow_begin+0xa5/0x8c0
[  710.625852]  ? do_raw_spin_unlock+0xa7/0x330
[  710.630279]  fallback_alloc+0x204/0x2e0
[  710.634283]  ____cache_alloc_node+0x1c7/0x1e0
[  710.638789]  kmem_cache_alloc_node+0xe3/0x730
[  710.643293]  ? ipv6_get_ifaddr+0x42e/0x620
[  710.647535]  __alloc_skb+0x119/0x770
[  710.651245]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  710.656525]  ? netdev_alloc_frag+0x1f0/0x1f0
[  710.660932]  ? lock_downgrade+0x900/0x900
[  710.665091]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  710.670628]  ? refcount_sub_and_test_checked+0x203/0x310
[  710.676085]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  710.681536]  ? addrconf_rs_timer+0x690/0x690
[  710.686110]  ndisc_alloc_skb+0x144/0x340
[  710.690175]  ndisc_send_rs+0x331/0x6e0
[  710.694071]  addrconf_rs_timer+0x314/0x690
[  710.698332]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  710.702578]  call_timer_fn+0x272/0x920
[  710.706467]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  710.710702]  ? process_timeout+0x40/0x40
[  710.714786]  ? __run_timers+0x7da/0xc70
[  710.718770]  ? _raw_spin_unlock_irq+0x27/0x80
[  710.723270]  ? _raw_spin_unlock_irq+0x27/0x80
[  710.727774]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  710.732020]  ? lockdep_hardirqs_on+0x296/0x5b0
[  710.736605]  ? trace_hardirqs_on+0xbd/0x310
[  710.740937]  ? kasan_check_read+0x11/0x20
[  710.745086]  ? __run_timers+0x7da/0xc70
[  710.749063]  ? trace_hardirqs_off_caller+0x310/0x310
[  710.754176]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  710.758408]  __run_timers+0x7e5/0xc70
[  710.762237]  ? timer_fixup_init+0x70/0x70
[  710.766397]  ? _raw_spin_unlock_irq+0x27/0x80
[  710.770925]  ? _raw_spin_unlock_irq+0x27/0x80
[  710.775426]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  710.780010]  ? trace_hardirqs_on+0xbd/0x310
[  710.784332]  ? kasan_check_read+0x11/0x20
[  710.788482]  ? finish_task_switch+0x1f4/0x910
[  710.792980]  ? trace_hardirqs_off_caller+0x310/0x310
[  710.798082]  ? compat_start_thread+0x80/0x80
[  710.802527]  ? pvclock_read_flags+0x160/0x160
[  710.807019]  ? __switch_to_asm+0x34/0x70
[  710.811084]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  710.816649]  ? check_preemption_disabled+0x48/0x280
[  710.821688]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  710.827240]  ? rcu_pm_notify+0xc0/0xc0
[  710.831127]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  710.836660]  ? check_preemption_disabled+0x48/0x280
[  710.841683]  run_timer_softirq+0x52/0xb0
[  710.845764]  ? rcu_read_lock_sched_held+0x14f/0x180
[  710.850798]  __do_softirq+0x308/0xb7e
[  710.854630]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  710.859426]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  710.864553]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  710.870004]  ? trace_hardirqs_on+0x310/0x310
[  710.874532]  ? schedule+0x108/0x460
[  710.878195]  ? trace_hardirqs_off+0xb8/0x310
[  710.882603]  ? smpboot_thread_fn+0x68b/0xa00
[  710.887040]  ? trace_hardirqs_on+0x310/0x310
[  710.891445]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  710.896985]  ? check_preemption_disabled+0x48/0x280
[  710.902003]  ? takeover_tasklets+0xa90/0xa90
[  710.906412]  run_ksoftirqd+0x5e/0x100
[  710.910213]  smpboot_thread_fn+0x68b/0xa00
[  710.914449]  ? sort_range+0x30/0x30
[  710.918073]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  710.923182]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  710.928719]  ? __kthread_parkme+0xfb/0x1a0
[  710.932954]  ? sort_range+0x30/0x30
[  710.936581]  kthread+0x35a/0x440
[  710.939960]  ? kthread_stop+0x900/0x900
[  710.943953]  ret_from_fork+0x3a/0x50
[  710.947702] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  710.947790] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  710.954711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  710.954716] Call Trace:
[  710.954723]  <IRQ>
[  710.954741]  dump_stack+0x244/0x39d
[  710.954768]  ? dump_stack_print_info.cold.1+0x20/0x20
[  710.961328] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  710.970596]  warn_alloc.cold.116+0xb7/0x1bd
[  710.973149] ksoftirqd/0 cpuset=/ mems_allowed=0
[  710.975297]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  711.008150]  ? lock_downgrade+0x900/0x900
[  711.012311]  ? trace_hardirqs_off+0xb8/0x310
[  711.016727]  ? trace_hardirqs_off+0xb8/0x310
[  711.021151]  __alloc_pages_slowpath+0x2651/0x2de0
[  711.026023]  ? warn_alloc+0x120/0x120
[  711.029826]  ? print_usage_bug+0xc0/0xc0
[  711.033894]  ? warn_alloc+0x120/0x120
[  711.037704]  ? warn_alloc+0x120/0x120
[  711.041514]  ? print_usage_bug+0xc0/0xc0
[  711.045599]  ? print_usage_bug+0xc0/0xc0
[  711.049673]  ? __lock_acquire+0x62f/0x4c20
[  711.053913]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  711.059451]  ? should_fail+0x22d/0xd01
[  711.063340]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  711.068442]  ? __lock_acquire+0x62f/0x4c20
[  711.072682]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  711.077823]  ? __lock_acquire+0x62f/0x4c20
[  711.082073]  ? should_fail+0x22d/0xd01
[  711.085961]  ? find_held_lock+0x36/0x1c0
[  711.090028]  ? mark_held_locks+0x130/0x130
[  711.094265]  ? mark_held_locks+0x130/0x130
[  711.098498]  ? zap_class+0x640/0x640
[  711.102255]  ? zap_class+0x640/0x640
[  711.105977]  ? print_usage_bug+0xc0/0xc0
[  711.110032]  ? do_raw_spin_unlock+0xa7/0x330
[  711.114449]  ? zap_class+0x640/0x640
[  711.118164]  ? print_usage_bug+0xc0/0xc0
[  711.122224]  ? wq_watchdog_touch+0x9c/0xfe
[  711.126468]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  711.132007]  ? check_preemption_disabled+0x48/0x280
[  711.137035]  ? __lock_is_held+0xb5/0x140
[  711.141105]  __alloc_pages_nodemask+0xad8/0xea0
[  711.145778]  ? zap_class+0x640/0x640
[  711.149498]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  711.154556]  ? find_held_lock+0x36/0x1c0
[  711.158624]  ? ____cache_alloc_node+0x1c7/0x1e0
[  711.163298]  ? lock_downgrade+0x900/0x900
[  711.167456]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  711.172996]  cache_grow_begin+0xa5/0x8c0
[  711.177068]  ? do_raw_spin_unlock+0xa7/0x330
[  711.181476]  fallback_alloc+0x204/0x2e0
[  711.185453]  ____cache_alloc_node+0x1c7/0x1e0
[  711.189954]  kmem_cache_alloc_node+0xe3/0x730
[  711.194472]  ? ipv6_get_ifaddr+0x42e/0x620
[  711.198733]  __alloc_skb+0x119/0x770
[  711.202469]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  711.207748]  ? netdev_alloc_frag+0x1f0/0x1f0
[  711.212165]  ? lock_downgrade+0x900/0x900
[  711.216322]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  711.221860]  ? refcount_sub_and_test_checked+0x203/0x310
[  711.227319]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  711.232790]  ? addrconf_rs_timer+0x690/0x690
[  711.237211]  ndisc_alloc_skb+0x144/0x340
[  711.241284]  ndisc_send_rs+0x331/0x6e0
[  711.245198]  addrconf_rs_timer+0x314/0x690
[  711.249467]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  711.253728]  call_timer_fn+0x272/0x920
[  711.257621]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  711.261852]  ? process_timeout+0x40/0x40
[  711.265923]  ? mark_held_locks+0xc7/0x130
[  711.270070]  ? _raw_spin_unlock_irq+0x27/0x80
[  711.274564]  ? _raw_spin_unlock_irq+0x27/0x80
[  711.279058]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  711.283310]  ? lockdep_hardirqs_on+0x296/0x5b0
[  711.287894]  ? trace_hardirqs_on+0xbd/0x310
[  711.292217]  ? kasan_check_read+0x11/0x20
[  711.296363]  ? __run_timers+0x7da/0xc70
[  711.300335]  ? trace_hardirqs_off_caller+0x310/0x310
[  711.305442]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  711.309679]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  711.313910]  __run_timers+0x7e5/0xc70
[  711.317717]  ? timer_fixup_init+0x70/0x70
[  711.321866]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  711.326889]  ? zap_class+0x640/0x640
[  711.330637]  ? print_usage_bug+0xc0/0xc0
[  711.334718]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  711.339914]  ? find_held_lock+0x36/0x1c0
[  711.343977]  ? zap_class+0x640/0x640
[  711.347720]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  711.353274]  ? check_preemption_disabled+0x48/0x280
[  711.358309]  ? __lock_is_held+0xb5/0x140
[  711.362392]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  711.367965]  ? check_preemption_disabled+0x48/0x280
[  711.372990]  run_timer_softirq+0x52/0xb0
[  711.377054]  ? rcu_read_lock_sched_held+0x14f/0x180
[  711.382067]  __do_softirq+0x308/0xb7e
[  711.385870]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  711.390376]  ? lock_downgrade+0x900/0x900
[  711.394527]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  711.399635]  ? pvclock_read_flags+0x160/0x160
[  711.404162]  ? lapic_next_event+0x5a/0x90
[  711.408326]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  711.413869]  ? kvm_clock_read+0x18/0x30
[  711.417844]  ? kvm_sched_clock_read+0x9/0x20
[  711.422258]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  711.427797]  ? check_preemption_disabled+0x48/0x280
[  711.432878]  irq_exit+0x17f/0x1c0
[  711.436358]  smp_apic_timer_interrupt+0x1cb/0x760
[  711.441213]  ? smp_reschedule_interrupt+0x109/0x650
[  711.446230]  ? smp_call_function_single_interrupt+0x650/0x650
[  711.452117]  ? interrupt_entry+0xb5/0xc0
[  711.456182]  ? trace_hardirqs_off_caller+0xbb/0x310
[  711.461199]  ? trace_hardirqs_off_caller+0xbb/0x310
[  711.466214]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  711.471075]  ? trace_hardirqs_on_caller+0x310/0x310
[  711.476091]  ? trace_hardirqs_on_caller+0x310/0x310
[  711.481108]  ? task_prio+0x50/0x50
[  711.484647]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  711.490186]  ? check_preemption_disabled+0x48/0x280
[  711.495206]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  711.500070]  apic_timer_interrupt+0xf/0x20
[  711.504299]  </IRQ>
[  711.506543] RIP: 0010:dump_stack+0x358/0x39d
[  711.510957] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  711.529854] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  711.537558] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  711.544854] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  711.552123] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  711.559408] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  711.566693] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  711.574234]  ? dump_stack+0x34f/0x39d
[  711.578048]  ? dump_stack_print_info.cold.1+0x20/0x20
[  711.583240]  ? mark_held_locks+0x130/0x130
[  711.587475]  ? mark_held_locks+0x130/0x130
[  711.591724]  dump_header+0x27b/0xf72
[  711.595459]  ? pagefault_out_of_memory+0x197/0x197
[  711.600410]  ? __lock_acquire+0x62f/0x4c20
[  711.604658]  ? percpu_ref_get_many+0x240/0x240
[  711.609243]  ? print_usage_bug+0xc0/0xc0
[  711.613313]  ? zap_class+0x640/0x640
[  711.617026]  ? print_usage_bug+0xc0/0xc0
[  711.621086]  ? print_usage_bug+0xc0/0xc0
[  711.625162]  ? zap_class+0x640/0x640
[  711.628882]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  711.634424]  ? find_held_lock+0x36/0x1c0
[  711.638494]  ? mark_held_locks+0xc7/0x130
[  711.642655]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  711.647765]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  711.652868]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  711.657452]  ? trace_hardirqs_on+0xbd/0x310
[  711.661776]  ? kasan_check_read+0x11/0x20
[  711.665922]  ? ___ratelimit+0x3b4/0x672
[  711.669896]  ? trace_hardirqs_off_caller+0x310/0x310
[  711.674998]  ? trace_hardirqs_on+0x310/0x310
[  711.679427]  ? lock_downgrade+0x900/0x900
[  711.683595]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  711.688703]  ? ___ratelimit+0x3b9/0x672
[  711.692680]  ? idr_get_free+0xf70/0xf70
[  711.696653]  ? find_held_lock+0x36/0x1c0
[  711.700721]  oom_kill_process.cold.27+0x10/0x903
[  711.705492]  ? zap_class+0x640/0x640
[  711.709205]  ? check_preemption_disabled+0x48/0x280
[  711.714226]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  711.719153]  ? kasan_check_read+0x11/0x20
[  711.723300]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  711.728575]  ? oom_evaluate_task+0x540/0x540
[  711.732985]  ? find_held_lock+0x36/0x1c0
[  711.737055]  ? out_of_memory+0x974/0x1430
[  711.741205]  ? lock_downgrade+0x900/0x900
[  711.745354]  ? check_preemption_disabled+0x48/0x280
[  711.750373]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  711.755321]  ? kasan_check_read+0x11/0x20
[  711.759466]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  711.764743]  ? rcu_softirq_qs+0x20/0x20
[  711.768730]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  711.774292]  ? oom_evaluate_task+0x302/0x540
[  711.778700]  out_of_memory+0xa84/0x1430
[  711.782682]  ? oom_killer_disable+0x3a0/0x3a0
[  711.787175]  ? __alloc_pages_slowpath+0xf5c/0x2de0
[  711.792124]  ? __ww_mutex_check_waiters+0x160/0x160
[  711.797166]  __alloc_pages_slowpath+0x232c/0x2de0
[  711.802063]  ? warn_alloc+0x120/0x120
[  711.805859]  ? mark_held_locks+0x130/0x130
[  711.810100]  ? find_get_entry+0xaae/0x1120
[  711.814354]  ? filemap_map_pages+0x1a20/0x1a20
[  711.818971]  ? zap_class+0x640/0x640
[  711.822696]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  711.828246]  ? check_preemption_disabled+0x48/0x280
[  711.833273]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  711.838815]  ? should_fail+0x22d/0xd01
[  711.842704]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  711.847809]  ? zap_class+0x640/0x640
[  711.851568]  ? __lock_is_held+0xb5/0x140
[  711.855665]  ? mark_held_locks+0x130/0x130
[  711.859904]  ? lock_release+0xa00/0xa00
[  711.863878]  ? perf_trace_sched_process_exec+0x860/0x860
[  711.869322]  ? xa_load+0x2ba/0x460
[  711.872863]  ? lock_downgrade+0x900/0x900
[  711.877018]  ? __might_sleep+0x95/0x190
[  711.880999]  __alloc_pages_nodemask+0xad8/0xea0
[  711.885706]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  711.890725]  ? __page_cache_alloc+0x191/0x5c0
[  711.895218]  ? xa_load+0x2e1/0x460
[  711.898754]  ? xa_clear_mark+0x40/0x40
[  711.902650]  ? zap_class+0x640/0x640
[  711.906366]  ? zap_class+0x640/0x640
[  711.910091]  ? zap_class+0x640/0x640
[  711.913803]  ? __do_page_cache_readahead+0x663/0x810
[  711.918910]  ? find_held_lock+0x36/0x1c0
[  711.922976]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  711.928519]  alloc_pages_current+0x173/0x350
[  711.932933]  __page_cache_alloc+0x38c/0x5c0
[  711.937247]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  711.942169]  ? kasan_check_read+0x11/0x20
[  711.946312]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  711.951594]  ? generic_perform_write+0x6a0/0x6a0
[  711.956349]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  711.961884]  ? check_preemption_disabled+0x48/0x280
[  711.966906]  filemap_fault+0x1595/0x25f0
[  711.970980]  ? __lock_page_or_retry+0xa00/0xa00
[  711.975655]  ? mark_held_locks+0x130/0x130
[  711.979903]  ? filemap_map_pages+0xd6b/0x1a20
[  711.984399]  ? lock_downgrade+0x900/0x900
[  711.988558]  ? check_preemption_disabled+0x48/0x280
[  711.993591]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  711.998519]  ? kasan_check_read+0x11/0x20
[  712.002663]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  712.007941]  ? rcu_softirq_qs+0x20/0x20
[  712.011948]  ? filemap_map_pages+0xd92/0x1a20
[  712.016446]  ? print_usage_bug+0xc0/0xc0
[  712.020528]  ? find_get_entries_tag+0x1400/0x1400
[  712.025365]  ? __kasan_slab_free+0x102/0x150
[  712.029779]  ? kasan_slab_free+0xe/0x10
[  712.033764]  ? kmem_cache_free+0x83/0x290
[  712.037942]  ? __sigqueue_free.part.29+0x74/0x90
[  712.042725]  ? lock_acquire+0x1ed/0x520
[  712.046719]  ? ext4_filemap_fault+0x7a/0xad
[  712.051060]  ? lock_release+0xa00/0xa00
[  712.055035]  ? perf_trace_sched_process_exec+0x860/0x860
[  712.060489]  ? print_usage_bug+0xc0/0xc0
[  712.064547]  ? print_usage_bug+0xc0/0xc0
[  712.068618]  ? down_read+0x8d/0x120
[  712.072242]  ? ext4_filemap_fault+0x7a/0xad
[  712.076576]  ? __down_interruptible+0x700/0x700
[  712.081268]  ext4_filemap_fault+0x82/0xad
[  712.085421]  __do_fault+0x100/0x6b0
[  712.089051]  ? pmd_devmap_trans_unstable+0x220/0x220
[  712.094154]  ? mark_held_locks+0x130/0x130
[  712.098388]  ? mark_held_locks+0x130/0x130
[  712.102626]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  712.108161]  ? rcu_pm_notify+0xc0/0xc0
[  712.112052]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  712.117603]  __handle_mm_fault+0x3ea0/0x5be0
[  712.122042]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  712.126896]  ? _raw_spin_unlock_irq+0x27/0x80
[  712.131389]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  712.135986]  ? trace_hardirqs_on+0xbd/0x310
[  712.140318]  ? kasan_check_read+0x11/0x20
[  712.144479]  ? __set_current_blocked+0xdf/0x120
[  712.149149]  ? trace_hardirqs_off_caller+0x310/0x310
[  712.154262]  ? zap_class+0x640/0x640
[  712.157977]  ? zap_class+0x640/0x640
[  712.161699]  ? find_held_lock+0x36/0x1c0
[  712.165776]  ? handle_mm_fault+0x42a/0xc70
[  712.170010]  ? lock_downgrade+0x900/0x900
[  712.174155]  ? check_preemption_disabled+0x48/0x280
[  712.179170]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  712.184110]  ? kasan_check_read+0x11/0x20
[  712.188254]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  712.193532]  ? rcu_softirq_qs+0x20/0x20
[  712.197502]  ? trace_hardirqs_off_caller+0x310/0x310
[  712.202602]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  712.208159]  ? check_preemption_disabled+0x48/0x280
[  712.213180]  handle_mm_fault+0x54f/0xc70
[  712.217239]  ? __handle_mm_fault+0x5be0/0x5be0
[  712.221827]  ? find_vma+0x34/0x190
[  712.225375]  __do_page_fault+0x5e8/0xe60
[  712.229462]  ? exit_to_usermode_loop+0x1f4/0x380
[  712.234244]  do_page_fault+0xf2/0x7e0
[  712.238048]  ? vmalloc_sync_all+0x30/0x30
[  712.242195]  ? error_entry+0x70/0xd0
[  712.245911]  ? trace_hardirqs_off_caller+0xbb/0x310
[  712.250929]  ? trace_hardirqs_on_caller+0xc0/0x310
[  712.255889]  ? syscall_return_slowpath+0x5e0/0x5e0
[  712.260821]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  712.265663]  ? trace_hardirqs_on_caller+0x310/0x310
[  712.270680]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  712.276134]  ? prepare_exit_to_usermode+0x291/0x3b0
[  712.281153]  ? page_fault+0x8/0x30
[  712.284697]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  712.289542]  ? page_fault+0x8/0x30
[  712.293087]  page_fault+0x1e/0x30
[  712.296543] RIP: 0033:0x45db60
[  712.299746] Code: Bad RIP value.
[  712.303114] RSP: 002b:000000c420047ab8 EFLAGS: 00010286
[  712.308471] RAX: 0000000000000000 RBX: 000000c420026380 RCX: 000000000045ddf3
[  712.315737] RDX: 000000c420047ac0 RSI: 000000c420047bf0 RDI: 0000000000000011
[  712.323012] RBP: 000000c420037e30 R08: 0000000000000000 R09: 0000000000000000
[  712.330282] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000001
[  712.337547] R13: 000000c427a630e0 R14: 0000000000000001 R15: 0000000000000000
[  712.344842] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc4+ #166
[  712.344847] warn_alloc_show_mem: 1 callbacks suppressed
[  712.344854] Mem-Info:
[  712.351686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  712.357050] active_anon:42936 inactive_anon:306 isolated_anon:0
[  712.357050]  active_file:13 inactive_file:13 isolated_file:0
[  712.357050]  unevictable:0 dirty:0 writeback:0 unstable:0
[  712.357050]  slab_reclaimable:9541 slab_unreclaimable:1478276
[  712.357050]  mapped:8211 shmem:354 pagetables:403 bounce:0
[  712.357050]  free:13785 free_pcp:492 free_cma:0
[  712.359419] Call Trace:
[  712.368814] Node 0 active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:32844kB dirty:0kB writeback:0kB shmem:1416kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 157696kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  712.401587]  dump_stack+0x244/0x39d
[  712.404141] 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
[  712.431720]  ? dump_stack_print_info.cold.1+0x20/0x20
[  712.435318] lowmem_reserve[]: 0 2818 6321 6321
[  712.461427]  warn_alloc.cold.116+0xb7/0x1bd
[  712.466613] Node 0 DMA32 free:25256kB min:30052kB low:37564kB high:45076kB active_anon:0kB 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
[  712.471191]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  712.475482] lowmem_reserve[]: 0 0 3503 3503
[  712.502628]  ? lock_downgrade+0x900/0x900
[  712.507440] Node 0 Normal free:13976kB min:37364kB low:46704kB high:56044kB active_anon:171744kB inactive_anon:1224kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:6656kB pagetables:1612kB bounce:0kB free_pcp:1968kB local_pcp:1424kB free_cma:0kB
[  712.511765]  ? trace_hardirqs_off+0xb8/0x310
[  712.515885] lowmem_reserve[]: 0 0 0 0
[  712.545044]  ? trace_hardirqs_off+0xb8/0x310
[  712.549427] 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
[  712.553222]  __alloc_pages_slowpath+0x2651/0x2de0
[  712.557699] Node 0 DMA32: 2*4kB (M) 2*8kB (M) 3*16kB (M) 5*32kB (UM) 3*64kB (UM) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25256kB
[  712.571283]  ? warn_alloc+0x120/0x120
[  712.576094] Node 0 Normal: 888*4kB (MEH) 361*8kB (UME) 181*16kB (UME) 90*32kB (UME) 6*64kB (UM) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 14008kB
[  712.591262]  ? print_usage_bug+0xc0/0xc0
[  712.595045] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  712.610204]  ? warn_alloc+0x120/0x120
[  712.614244] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  712.623068]  ? warn_alloc+0x120/0x120
[  712.626844] 380 total pagecache pages
[  712.635413]  ? print_usage_bug+0xc0/0xc0
[  712.639197] 0 pages in swap cache
[  712.642981]  ? print_usage_bug+0xc0/0xc0
[  712.647017] Swap cache stats: add 0, delete 0, find 0/0
[  712.650459]  ? __lock_acquire+0x62f/0x4c20
[  712.654492] Free swap  = 0kB
[  712.659849]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  712.664055] Total swap = 0kB
[  712.667065]  ? should_fail+0x22d/0xd01
[  712.672584] 1965979 pages RAM
[  712.675625]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  712.679485] 0 pages HighMem/MovableOnly
[  712.682606]  ? __lock_acquire+0x62f/0x4c20
[  712.688196] 342854 pages reserved
[  712.688205] 0 pages cma reserved
[  712.692178]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  712.696445] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  712.699826]  ? __lock_acquire+0x62f/0x4c20
[  712.699839]  ? should_fail+0x22d/0xd01
[  712.699854]  ? find_held_lock+0x36/0x1c0
[  712.699875]  ? mark_held_locks+0x130/0x130
[  712.703292] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  712.708330]  ? mark_held_locks+0x130/0x130
[  712.714798] syz-fuzzer cpuset=/ mems_allowed=0
[  712.719027]  ? zap_class+0x640/0x640
[  712.753855]  ? mark_held_locks+0xc7/0x130
[  712.758001]  ? do_raw_spin_unlock+0xa7/0x330
[  712.762411]  ? zap_class+0x640/0x640
[  712.766128]  ? print_usage_bug+0xc0/0xc0
[  712.770210]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  712.775747]  ? check_preemption_disabled+0x48/0x280
[  712.780869]  ? __lock_is_held+0xb5/0x140
[  712.784934]  __alloc_pages_nodemask+0xad8/0xea0
[  712.789597]  ? zap_class+0x640/0x640
[  712.793314]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  712.798339]  ? find_held_lock+0x36/0x1c0
[  712.802406]  ? ____cache_alloc_node+0x1c7/0x1e0
[  712.807077]  ? lock_downgrade+0x900/0x900
[  712.811232]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  712.816814]  cache_grow_begin+0xa5/0x8c0
[  712.820873]  ? do_raw_spin_unlock+0xa7/0x330
[  712.825289]  fallback_alloc+0x204/0x2e0
[  712.829272]  ____cache_alloc_node+0x1c7/0x1e0
[  712.833784]  kmem_cache_alloc_node+0xe3/0x730
[  712.838280]  ? ipv6_get_ifaddr+0x42e/0x620
[  712.842520]  __alloc_skb+0x119/0x770
[  712.846241]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  712.851524]  ? netdev_alloc_frag+0x1f0/0x1f0
[  712.855934]  ? lock_downgrade+0x900/0x900
[  712.860111]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  712.865676]  ? refcount_sub_and_test_checked+0x203/0x310
[  712.871145]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  712.876607]  ? addrconf_rs_timer+0x690/0x690
[  712.881031]  ndisc_alloc_skb+0x144/0x340
[  712.885096]  ndisc_send_rs+0x331/0x6e0
[  712.888988]  addrconf_rs_timer+0x314/0x690
[  712.893249]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  712.897496]  call_timer_fn+0x272/0x920
[  712.901383]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  712.905615]  ? process_timeout+0x40/0x40
[  712.909694]  ? __run_timers+0x7da/0xc70
[  712.913671]  ? _raw_spin_unlock_irq+0x27/0x80
[  712.918167]  ? _raw_spin_unlock_irq+0x27/0x80
[  712.922672]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  712.926912]  ? lockdep_hardirqs_on+0x296/0x5b0
[  712.931540]  ? trace_hardirqs_on+0xbd/0x310
[  712.935860]  ? kasan_check_read+0x11/0x20
[  712.940003]  ? __run_timers+0x7da/0xc70
[  712.943971]  ? trace_hardirqs_off_caller+0x310/0x310
[  712.949091]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  712.953332]  __run_timers+0x7e5/0xc70
[  712.957139]  ? timer_fixup_init+0x70/0x70
[  712.961307]  ? _raw_spin_unlock_irq+0x27/0x80
[  712.965809]  ? _raw_spin_unlock_irq+0x27/0x80
[  712.970321]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  712.974904]  ? trace_hardirqs_on+0xbd/0x310
[  712.979236]  ? kasan_check_read+0x11/0x20
[  712.983387]  ? finish_task_switch+0x1f4/0x910
[  712.987882]  ? trace_hardirqs_off_caller+0x310/0x310
[  712.992984]  ? compat_start_thread+0x80/0x80
[  712.997426]  ? pvclock_read_flags+0x160/0x160
[  713.001934]  ? __switch_to_asm+0x34/0x70
[  713.006010]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  713.011544]  ? check_preemption_disabled+0x48/0x280
[  713.016566]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  713.022117]  ? rcu_pm_notify+0xc0/0xc0
[  713.026025]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  713.031562]  ? check_preemption_disabled+0x48/0x280
[  713.036580]  run_timer_softirq+0x52/0xb0
[  713.040641]  ? rcu_read_lock_sched_held+0x14f/0x180
[  713.045658]  __do_softirq+0x308/0xb7e
[  713.049463]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  713.054224]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  713.059326]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  713.064812]  ? trace_hardirqs_on+0x310/0x310
[  713.069227]  ? schedule+0x108/0x460
[  713.072865]  ? trace_hardirqs_off+0xb8/0x310
[  713.077302]  ? smpboot_thread_fn+0x68b/0xa00
[  713.081710]  ? trace_hardirqs_on+0x310/0x310
[  713.086118]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  713.091671]  ? check_preemption_disabled+0x48/0x280
[  713.096699]  ? takeover_tasklets+0xa90/0xa90
[  713.101111]  run_ksoftirqd+0x5e/0x100
[  713.104911]  smpboot_thread_fn+0x68b/0xa00
[  713.109154]  ? sort_range+0x30/0x30
[  713.112818]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  713.118009]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  713.123545]  ? __kthread_parkme+0xfb/0x1a0
[  713.127805]  ? sort_range+0x30/0x30
[  713.131429]  kthread+0x35a/0x440
[  713.134807]  ? kthread_stop+0x900/0x900
[  713.138804]  ret_from_fork+0x3a/0x50
[  713.142564] CPU: 1 PID: 6024 Comm: syz-fuzzer Not tainted 4.20.0-rc4+ #166
[  713.142634] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  713.149574] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  713.149580] Call Trace:
[  713.149586]  <IRQ>
[  713.149605]  dump_stack+0x244/0x39d
[  713.149624]  ? dump_stack_print_info.cold.1+0x20/0x20
[  713.177947] kworker/0:1: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  713.178980]  warn_alloc.cold.116+0xb7/0x1bd
[  713.178997]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  713.189607] kworker/0:1 cpuset=/ mems_allowed=0
[  713.193924]  ? lock_downgrade+0x900/0x900
[  713.193946]  ? trace_hardirqs_off+0xb8/0x310
[  713.212154]  ? trace_hardirqs_off+0xb8/0x310
[  713.216567]  __alloc_pages_slowpath+0x2651/0x2de0
[  713.221464]  ? warn_alloc+0x120/0x120
[  713.225268]  ? print_usage_bug+0xc0/0xc0
[  713.229333]  ? warn_alloc+0x120/0x120
[  713.233139]  ? warn_alloc+0x120/0x120
[  713.236942]  ? print_usage_bug+0xc0/0xc0
[  713.241007]  ? print_usage_bug+0xc0/0xc0
[  713.245066]  ? __lock_acquire+0x62f/0x4c20
[  713.249342]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  713.254878]  ? should_fail+0x22d/0xd01
[  713.258791]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  713.263912]  ? __lock_acquire+0x62f/0x4c20
[  713.268152]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  713.273262]  ? __lock_acquire+0x62f/0x4c20
[  713.277529]  ? should_fail+0x22d/0xd01
[  713.281413]  ? find_held_lock+0x36/0x1c0
[  713.285481]  ? mark_held_locks+0x130/0x130
[  713.289721]  ? mark_held_locks+0x130/0x130
[  713.293956]  ? zap_class+0x640/0x640
[  713.297673]  ? zap_class+0x640/0x640
[  713.301386]  ? print_usage_bug+0xc0/0xc0
[  713.305442]  ? do_raw_spin_unlock+0xa7/0x330
[  713.309853]  ? zap_class+0x640/0x640
[  713.313581]  ? print_usage_bug+0xc0/0xc0
[  713.317641]  ? wq_watchdog_touch+0x9c/0xfe
[  713.321879]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  713.327415]  ? check_preemption_disabled+0x48/0x280
[  713.332438]  ? __lock_is_held+0xb5/0x140
[  713.336506]  __alloc_pages_nodemask+0xad8/0xea0
[  713.341172]  ? zap_class+0x640/0x640
[  713.344923]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  713.349963]  ? find_held_lock+0x36/0x1c0
[  713.354033]  ? ____cache_alloc_node+0x1c7/0x1e0
[  713.358702]  ? lock_downgrade+0x900/0x900
[  713.362854]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  713.368393]  cache_grow_begin+0xa5/0x8c0
[  713.372450]  ? do_raw_spin_unlock+0xa7/0x330
[  713.376884]  fallback_alloc+0x204/0x2e0
[  713.380868]  ____cache_alloc_node+0x1c7/0x1e0
[  713.385369]  kmem_cache_alloc_node+0xe3/0x730
[  713.389869]  ? ipv6_get_ifaddr+0x42e/0x620
[  713.394116]  __alloc_skb+0x119/0x770
[  713.397859]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  713.403141]  ? netdev_alloc_frag+0x1f0/0x1f0
[  713.407551]  ? lock_downgrade+0x900/0x900
[  713.411721]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  713.417260]  ? refcount_sub_and_test_checked+0x203/0x310
[  713.422730]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  713.428187]  ? addrconf_rs_timer+0x690/0x690
[  713.432606]  ndisc_alloc_skb+0x144/0x340
[  713.436668]  ndisc_send_rs+0x331/0x6e0
[  713.440556]  addrconf_rs_timer+0x314/0x690
[  713.444818]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  713.449078]  call_timer_fn+0x272/0x920
[  713.452963]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  713.457195]  ? process_timeout+0x40/0x40
[  713.461266]  ? mark_held_locks+0xc7/0x130
[  713.465418]  ? _raw_spin_unlock_irq+0x27/0x80
[  713.469913]  ? _raw_spin_unlock_irq+0x27/0x80
[  713.474407]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  713.478661]  ? lockdep_hardirqs_on+0x296/0x5b0
[  713.483247]  ? trace_hardirqs_on+0xbd/0x310
[  713.487576]  ? kasan_check_read+0x11/0x20
[  713.491724]  ? __run_timers+0x7da/0xc70
[  713.495706]  ? trace_hardirqs_off_caller+0x310/0x310
[  713.500814]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  713.505055]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  713.509289]  __run_timers+0x7e5/0xc70
[  713.513106]  ? timer_fixup_init+0x70/0x70
[  713.517277]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  713.522295]  ? zap_class+0x640/0x640
[  713.526010]  ? print_usage_bug+0xc0/0xc0
[  713.530069]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  713.535260]  ? find_held_lock+0x36/0x1c0
[  713.539328]  ? zap_class+0x640/0x640
[  713.543059]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  713.548654]  ? check_preemption_disabled+0x48/0x280
[  713.553680]  ? __lock_is_held+0xb5/0x140
[  713.557740]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  713.563293]  ? check_preemption_disabled+0x48/0x280
[  713.568345]  run_timer_softirq+0x52/0xb0
[  713.572406]  ? rcu_read_lock_sched_held+0x14f/0x180
[  713.577421]  __do_softirq+0x308/0xb7e
[  713.581227]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  713.585734]  ? lock_downgrade+0x900/0x900
[  713.589892]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  713.595007]  ? pvclock_read_flags+0x160/0x160
[  713.599502]  ? lapic_next_event+0x5a/0x90
[  713.603647]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  713.609190]  ? kvm_clock_read+0x18/0x30
[  713.613160]  ? kvm_sched_clock_read+0x9/0x20
[  713.617584]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  713.623119]  ? check_preemption_disabled+0x48/0x280
[  713.628173]  irq_exit+0x17f/0x1c0
[  713.631624]  smp_apic_timer_interrupt+0x1cb/0x760
[  713.636460]  ? smp_reschedule_interrupt+0x109/0x650
[  713.641503]  ? smp_call_function_single_interrupt+0x650/0x650
[  713.647406]  ? interrupt_entry+0xb5/0xc0
[  713.651468]  ? trace_hardirqs_off_caller+0xbb/0x310
[  713.656488]  ? trace_hardirqs_off_caller+0xbb/0x310
[  713.661505]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  713.666349]  ? trace_hardirqs_on_caller+0x310/0x310
[  713.671368]  ? trace_hardirqs_on_caller+0x310/0x310
[  713.676385]  ? task_prio+0x50/0x50
[  713.679927]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  713.685465]  ? check_preemption_disabled+0x48/0x280
[  713.690490]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  713.695356]  apic_timer_interrupt+0xf/0x20
[  713.699595]  </IRQ>
[  713.701862] RIP: 0010:dump_stack+0x358/0x39d
[  713.706273] Code: 74 0c 48 c7 c7 70 fb 51 89 e8 f1 37 ed f9 48 83 3d f9 28 7c 01 00 0f 84 63 fe ff ff e8 6e b8 a9 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 5b b8 a9 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  713.725178] RSP: 0000:ffff8881c1b7e1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  713.732884] RAX: ffff8881c167e080 RBX: 1ffffffff12a3f6e RCX: 1ffff110382cfd2e
[  713.740154] RDX: 0000000000000000 RSI: ffffffff87d5d282 RDI: 0000000000000293
[  713.747425] RBP: ffff8881c1b7e290 R08: ffff8881c167e970 R09: 0000000000000006
[  713.754691] R10: 0000000000000000 R11: ffff8881c167e080 R12: 1ffff1103836fc45
[  713.761958] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  713.769259]  ? dump_stack+0x34f/0x39d
[  713.773075]  ? dump_stack_print_info.cold.1+0x20/0x20
[  713.778269]  ? mark_held_locks+0x130/0x130
[  713.782508]  ? mark_held_locks+0x130/0x130
[  713.786745]  dump_header+0x27b/0xf72
[  713.790479]  ? pagefault_out_of_memory+0x197/0x197
[  713.795443]  ? __lock_acquire+0x62f/0x4c20
[  713.799678]  ? percpu_ref_get_many+0x240/0x240