4] Total swap = 0kB
[  352.883357]  ? should_fail+0x22d/0xd01
[  352.886345] 1965979 pages RAM
[  352.891888]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  352.894880] 0 pages HighMem/MovableOnly
[  352.898751]  ? __lock_acquire+0x62f/0x4c20
[  352.901828] 342853 pages reserved
[  352.906915]  ? should_fail+0x22d/0xd01
[  352.910859] 0 pages cma reserved
[  352.915092]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  352.918573] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  352.922408]  ? mark_held_locks+0x130/0x130
[  352.922430]  ? mark_held_locks+0x130/0x130
[  352.925850] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  352.931050]  ? __lock_is_held+0xb5/0x140
[  352.937513] syz-fuzzer cpuset=/ mems_allowed=0
[  352.941740]  ? zap_class+0x640/0x640
[  352.968495]  ? update_curr+0x344/0xbd0
[  352.972392]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  352.977942]  ? check_preemption_disabled+0x48/0x280
[  352.982969]  ? __lock_is_held+0xb5/0x140
[  352.987040]  __alloc_pages_nodemask+0xa80/0xde0
[  352.991731]  ? zap_class+0x640/0x640
[  352.995473]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  353.000523]  ? find_held_lock+0x36/0x1c0
[  353.004588]  ? ____cache_alloc_node+0x1c7/0x1e0
[  353.009249]  ? lock_downgrade+0x900/0x900
[  353.013400]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  353.018939]  cache_grow_begin+0xa5/0x8c0
[  353.023022]  ? do_raw_spin_unlock+0xa7/0x330
[  353.027431]  fallback_alloc+0x204/0x2e0
[  353.031421]  ____cache_alloc_node+0x1c7/0x1e0
[  353.035930]  kmem_cache_alloc+0x1f8/0x730
[  353.040101]  skb_clone+0x1bb/0x500
[  353.043660]  ? skb_split+0x11e0/0x11e0
[  353.047548]  ? kasan_check_read+0x11/0x20
[  353.051694]  ? __schedule+0x168a/0x21d0
[  353.055664]  ? trace_hardirqs_off_caller+0x310/0x310
[  353.060773]  ? lock_pin_lock+0x350/0x350
[  353.064855]  bpf_clone_redirect+0xb9/0x490
[  353.069101]  ? __schedule+0x168a/0x21d0
[  353.073077]  bpf_prog_bebbfe2050753572+0xf6f/0x1000
[  353.078133]  ? __sched_text_start+0x8/0x8
[  353.082282]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  353.086858]  ? retint_kernel+0x2d/0x2d
[  353.090759]  ? trace_hardirqs_on_caller+0xc0/0x310
[  353.095688]  ? find_held_lock+0x36/0x1c0
[  353.099764]  ? lock_acquire+0x1ed/0x520
[  353.103732]  ? bpf_test_run+0x3cb/0x780
[  353.107717]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.113253]  ? check_preemption_disabled+0x48/0x280
[  353.118320]  ? kasan_check_read+0x11/0x20
[  353.122493]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  353.127779]  ? rcu_softirq_qs+0x20/0x20
[  353.131764]  ? preempt_schedule+0x4d/0x60
[  353.135921]  ? ___preempt_schedule+0x16/0x18
[  353.140356]  ? bpf_test_run+0x25d/0x780
[  353.144356]  ? netlink_diag_dump+0x2a0/0x2a0
[  353.148759]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  353.154298]  ? bpf_test_init.isra.10+0x70/0x100
[  353.158971]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  353.163758]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  353.168598]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  353.174148]  ? fput+0x130/0x1a0
[  353.177424]  ? __bpf_prog_get+0x9b/0x290
[  353.181494]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  353.186330]  ? bpf_prog_test_run+0x130/0x1a0
[  353.190733]  ? __x64_sys_bpf+0x3d8/0x520
[  353.194825]  ? bpf_prog_get+0x20/0x20
[  353.198642]  ? do_syscall_64+0x1b9/0x820
[  353.202704]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  353.208064]  ? syscall_return_slowpath+0x5e0/0x5e0
[  353.212996]  ? trace_hardirqs_on_caller+0x310/0x310
[  353.218030]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  353.223050]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  353.229712]  ? __switch_to_asm+0x40/0x70
[  353.233768]  ? __switch_to_asm+0x34/0x70
[  353.237833]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  353.242689]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  353.248060] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  353.248156] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  353.255031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  353.265505] syz-executor3 cpuset=syz3 mems_allowed=0
[  353.274844] Call Trace:
[  353.282499]  <IRQ>
[  353.284663]  dump_stack+0x244/0x39d
[  353.288306]  ? dump_stack_print_info.cold.1+0x20/0x20
[  353.293522]  warn_alloc.cold.116+0xb7/0x1bd
[  353.297859]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  353.302698]  ? lock_downgrade+0x900/0x900
[  353.306867]  ? trace_hardirqs_off+0xb8/0x310
[  353.311299]  ? trace_hardirqs_off+0xb8/0x310
[  353.315718]  __alloc_pages_slowpath+0x26e8/0x2e10
[  353.320596]  ? warn_alloc+0x120/0x120
[  353.324423]  ? print_usage_bug+0xc0/0xc0
[  353.328479]  ? warn_alloc+0x120/0x120
[  353.332295]  ? warn_alloc+0x120/0x120
[  353.336094]  ? print_usage_bug+0xc0/0xc0
[  353.340161]  ? print_usage_bug+0xc0/0xc0
[  353.344216]  ? __lock_acquire+0x62f/0x4c20
[  353.348449]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  353.354014]  ? should_fail+0x22d/0xd01
[  353.357901]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  353.363006]  ? __lock_acquire+0x62f/0x4c20
[  353.367242]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  353.372354]  ? __lock_acquire+0x62f/0x4c20
[  353.376999]  ? should_fail+0x22d/0xd01
[  353.380884]  ? find_held_lock+0x36/0x1c0
[  353.384953]  ? mark_held_locks+0x130/0x130
[  353.389188]  ? mark_held_locks+0x130/0x130
[  353.393421]  ? zap_class+0x640/0x640
[  353.397129]  ? zap_class+0x640/0x640
[  353.400853]  ? print_usage_bug+0xc0/0xc0
[  353.404927]  ? do_raw_spin_unlock+0xa7/0x330
[  353.409335]  ? zap_class+0x640/0x640
[  353.413047]  ? print_usage_bug+0xc0/0xc0
[  353.417134]  ? wq_watchdog_touch+0x9c/0xfe
[  353.421367]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.426900]  ? check_preemption_disabled+0x48/0x280
[  353.431927]  ? __lock_is_held+0xb5/0x140
[  353.435999]  __alloc_pages_nodemask+0xa80/0xde0
[  353.440662]  ? zap_class+0x640/0x640
[  353.444390]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  353.449407]  ? find_held_lock+0x36/0x1c0
[  353.453469]  ? ____cache_alloc_node+0x1c7/0x1e0
[  353.458137]  ? lock_downgrade+0x900/0x900
[  353.462314]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.467887]  cache_grow_begin+0xa5/0x8c0
[  353.471968]  ? do_raw_spin_unlock+0xa7/0x330
[  353.476384]  fallback_alloc+0x204/0x2e0
[  353.480363]  ____cache_alloc_node+0x1c7/0x1e0
[  353.484871]  kmem_cache_alloc_node+0xe3/0x730
[  353.489397]  ? ipv6_get_ifaddr+0x42e/0x620
[  353.493643]  __alloc_skb+0x119/0x770
[  353.497357]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  353.502649]  ? netdev_alloc_frag+0x1f0/0x1f0
[  353.507055]  ? lock_downgrade+0x900/0x900
[  353.511204]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.516764]  ? refcount_sub_and_test_checked+0x203/0x310
[  353.522219]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  353.527664]  ? addrconf_rs_timer+0x690/0x690
[  353.532077]  ndisc_alloc_skb+0x144/0x340
[  353.536136]  ndisc_send_rs+0x331/0x6e0
[  353.540041]  addrconf_rs_timer+0x314/0x690
[  353.544277]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  353.548513]  call_timer_fn+0x272/0x920
[  353.552408]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  353.556684]  ? process_timeout+0x40/0x40
[  353.560748]  ? mark_held_locks+0xc7/0x130
[  353.564897]  ? _raw_spin_unlock_irq+0x27/0x80
[  353.569414]  ? _raw_spin_unlock_irq+0x27/0x80
[  353.573915]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  353.578165]  ? lockdep_hardirqs_on+0x296/0x5b0
[  353.582747]  ? trace_hardirqs_on+0xbd/0x310
[  353.587072]  ? kasan_check_read+0x11/0x20
[  353.591212]  ? __run_timers+0x7da/0xc70
[  353.595196]  ? trace_hardirqs_off_caller+0x310/0x310
[  353.600302]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  353.604545]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  353.608791]  __run_timers+0x7e5/0xc70
[  353.612628]  ? timer_fixup_init+0x70/0x70
[  353.616777]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  353.621801]  ? zap_class+0x640/0x640
[  353.625517]  ? print_usage_bug+0xc0/0xc0
[  353.629584]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  353.634781]  ? find_held_lock+0x36/0x1c0
[  353.638874]  ? zap_class+0x640/0x640
[  353.642591]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.648129]  ? check_preemption_disabled+0x48/0x280
[  353.653152]  ? __lock_is_held+0xb5/0x140
[  353.657228]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.662772]  ? check_preemption_disabled+0x48/0x280
[  353.667925]  run_timer_softirq+0x52/0xb0
[  353.671995]  ? rcu_read_lock_sched_held+0x14f/0x180
[  353.677013]  __do_softirq+0x308/0xb7e
[  353.680815]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  353.685322]  ? lock_downgrade+0x900/0x900
[  353.689475]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  353.694581]  ? pvclock_read_flags+0x160/0x160
[  353.699093]  ? lapic_next_event+0x5a/0x90
[  353.703285]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.708835]  ? kvm_clock_read+0x18/0x30
[  353.712805]  ? kvm_sched_clock_read+0x9/0x20
[  353.717210]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  353.722771]  ? check_preemption_disabled+0x48/0x280
[  353.727814]  irq_exit+0x17f/0x1c0
[  353.731310]  smp_apic_timer_interrupt+0x1cb/0x760
[  353.736151]  ? smp_call_function_single_interrupt+0x159/0x650
[  353.742047]  ? smp_call_function_single_interrupt+0x650/0x650
[  353.747932]  ? interrupt_entry+0xb5/0xc0
[  353.752003]  ? trace_hardirqs_off_caller+0xbb/0x310
[  353.757020]  ? trace_hardirqs_off_caller+0xbb/0x310
[  353.762033]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  353.766889]  ? trace_hardirqs_on_caller+0x310/0x310
[  353.771902]  ? trace_hardirqs_on_caller+0x310/0x310
[  353.776915]  ? task_prio+0x50/0x50
[  353.780458]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.786000]  ? check_preemption_disabled+0x48/0x280
[  353.791035]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  353.795884]  apic_timer_interrupt+0xf/0x20
[  353.800125]  </IRQ>
[  353.802361] RIP: 0010:dump_stack+0x358/0x39d
[  353.806771] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  353.825667] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  353.833407] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  353.840672] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  353.847936] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  353.855202] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  353.862498] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  353.869778]  ? dump_stack+0x34f/0x39d
[  353.873590]  ? dump_stack_print_info.cold.1+0x20/0x20
[  353.878796]  ? mark_held_locks+0x130/0x130
[  353.883031]  ? mark_held_locks+0x130/0x130
[  353.887266]  dump_header+0x27b/0xf72
[  353.891006]  ? pagefault_out_of_memory+0x197/0x197
[  353.895937]  ? __lock_acquire+0x62f/0x4c20
[  353.900180]  ? percpu_ref_get_many+0x240/0x240
[  353.904762]  ? print_usage_bug+0xc0/0xc0
[  353.908826]  ? zap_class+0x640/0x640
[  353.912541]  ? print_usage_bug+0xc0/0xc0
[  353.916598]  ? print_usage_bug+0xc0/0xc0
[  353.920659]  ? zap_class+0x640/0x640
[  353.924377]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.929917]  ? find_held_lock+0x36/0x1c0
[  353.933994]  ? mark_held_locks+0xc7/0x130
[  353.938140]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  353.943242]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  353.948363]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  353.952954]  ? trace_hardirqs_on+0xbd/0x310
[  353.957292]  ? kasan_check_read+0x11/0x20
[  353.961449]  ? ___ratelimit+0x3b4/0x672
[  353.965419]  ? trace_hardirqs_off_caller+0x310/0x310
[  353.970520]  ? trace_hardirqs_on+0x310/0x310
[  353.974928]  ? lock_downgrade+0x900/0x900
[  353.979078]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  353.984194]  ? ___ratelimit+0x3b9/0x672
[  353.988197]  ? idr_get_free+0xf70/0xf70
[  353.992198]  ? find_held_lock+0x36/0x1c0
[  353.996262]  oom_kill_process.cold.27+0x10/0x903
[  354.001025]  ? zap_class+0x640/0x640
[  354.004740]  ? check_preemption_disabled+0x48/0x280
[  354.009786]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  354.014740]  ? kasan_check_read+0x11/0x20
[  354.018886]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  354.024159]  ? oom_evaluate_task+0x540/0x540
[  354.028571]  ? find_held_lock+0x36/0x1c0
[  354.032653]  ? out_of_memory+0x974/0x1430
[  354.036805]  ? lock_downgrade+0x900/0x900
[  354.040957]  ? check_preemption_disabled+0x48/0x280
[  354.046014]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  354.050943]  ? kasan_check_read+0x11/0x20
[  354.055090]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  354.060380]  ? rcu_softirq_qs+0x20/0x20
[  354.064358]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  354.069892]  ? oom_evaluate_task+0x302/0x540
[  354.074308]  out_of_memory+0xa84/0x1430
[  354.078308]  ? oom_killer_disable+0x3a0/0x3a0
[  354.082819]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  354.087763]  ? __ww_mutex_check_waiters+0x160/0x160
[  354.092801]  __alloc_pages_slowpath+0x2354/0x2e10
[  354.097676]  ? warn_alloc+0x120/0x120
[  354.101474]  ? mark_held_locks+0x130/0x130
[  354.105712]  ? find_get_entry+0xaae/0x1120
[  354.109956]  ? filemap_map_pages+0x1a20/0x1a20
[  354.114639]  ? zap_class+0x640/0x640
[  354.118356]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  354.124006]  ? check_preemption_disabled+0x48/0x280
[  354.129026]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  354.134562]  ? should_fail+0x22d/0xd01
[  354.138454]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  354.143557]  ? zap_class+0x640/0x640
[  354.147291]  ? __lock_is_held+0xb5/0x140
[  354.151366]  ? mark_held_locks+0x130/0x130
[  354.155604]  ? lock_release+0xa00/0xa00
[  354.159580]  ? perf_trace_sched_process_exec+0x860/0x860
[  354.165029]  ? xa_load+0x2ba/0x460
[  354.168566]  ? lock_downgrade+0x900/0x900
[  354.172727]  ? __might_sleep+0x95/0x190
[  354.176714]  __alloc_pages_nodemask+0xa80/0xde0
[  354.181389]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  354.186419]  ? __page_cache_alloc+0x191/0x5c0
[  354.190911]  ? xa_load+0x2e1/0x460
[  354.194445]  ? xa_clear_mark+0x40/0x40
[  354.198329]  ? zap_class+0x640/0x640
[  354.202057]  ? zap_class+0x640/0x640
[  354.205767]  ? zap_class+0x640/0x640
[  354.209492]  ? __do_page_cache_readahead+0x663/0x810
[  354.214633]  ? find_held_lock+0x36/0x1c0
[  354.218699]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  354.224267]  alloc_pages_current+0x173/0x350
[  354.228680]  __page_cache_alloc+0x38c/0x5c0
[  354.233005]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  354.237935]  ? kasan_check_read+0x11/0x20
[  354.242087]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  354.247362]  ? generic_perform_write+0x6a0/0x6a0
[  354.252124]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  354.257660]  ? check_preemption_disabled+0x48/0x280
[  354.262680]  filemap_fault+0x1595/0x25f0
[  354.266755]  ? __lock_page_or_retry+0xa00/0xa00
[  354.271443]  ? mark_held_locks+0x130/0x130
[  354.275683]  ? filemap_map_pages+0xd6b/0x1a20
[  354.280195]  ? lock_downgrade+0x900/0x900
[  354.284359]  ? check_preemption_disabled+0x48/0x280
[  354.289384]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  354.294317]  ? kasan_check_read+0x11/0x20
[  354.298479]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  354.303755]  ? rcu_softirq_qs+0x20/0x20
[  354.307746]  ? filemap_map_pages+0xd92/0x1a20
[  354.312256]  ? find_get_entries_tag+0x1400/0x1400
[  354.317105]  ? debug_object_destroy+0x2b0/0x2b0
[  354.321785]  ? lock_pi_update_atomic+0x150/0x150
[  354.326542]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  354.332092]  ? lock_acquire+0x1ed/0x520
[  354.336084]  ? ext4_filemap_fault+0x7a/0xad
[  354.340411]  ? lock_release+0xa00/0xa00
[  354.344382]  ? perf_trace_sched_process_exec+0x860/0x860
[  354.349851]  ? print_usage_bug+0xc0/0xc0
[  354.353914]  ? print_usage_bug+0xc0/0xc0
[  354.357983]  ? down_read+0x8d/0x120
[  354.361613]  ? ext4_filemap_fault+0x7a/0xad
[  354.365937]  ? __down_interruptible+0x700/0x700
[  354.370614]  ext4_filemap_fault+0x82/0xad
[  354.374789]  __do_fault+0x100/0x6b0
[  354.378424]  ? pmd_devmap_trans_unstable+0x220/0x220
[  354.383530]  ? mark_held_locks+0x130/0x130
[  354.387780]  ? mark_held_locks+0x130/0x130
[  354.392023]  ? debug_smp_processor_id+0x1c/0x20
[  354.396688]  ? perf_trace_lock+0x14d/0x7a0
[  354.400925]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  354.406473]  __handle_mm_fault+0x3ea0/0x5be0
[  354.410890]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  354.415732]  ? lock_is_held_type+0x210/0x210
[  354.420148]  ? ksys_dup3+0x680/0x680
[  354.423889]  ? zap_class+0x640/0x640
[  354.427639]  ? zap_class+0x640/0x640
[  354.431348]  ? __x64_sys_futex+0x53e/0x6a0
[  354.435602]  ? find_held_lock+0x36/0x1c0
[  354.439687]  ? handle_mm_fault+0x42a/0xc70
[  354.443920]  ? lock_downgrade+0x900/0x900
[  354.448084]  ? check_preemption_disabled+0x48/0x280
[  354.453105]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  354.458053]  ? kasan_check_read+0x11/0x20
[  354.462214]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  354.467489]  ? rcu_softirq_qs+0x20/0x20
[  354.471461]  ? trace_hardirqs_off_caller+0x310/0x310
[  354.476566]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  354.482104]  ? check_preemption_disabled+0x48/0x280
[  354.487526]  handle_mm_fault+0x54f/0xc70
[  354.491605]  ? __handle_mm_fault+0x5be0/0x5be0
[  354.496207]  ? find_vma+0x34/0x190
[  354.499773]  __do_page_fault+0x5e8/0xe60
[  354.503849]  ? trace_hardirqs_off+0xb8/0x310
[  354.508268]  do_page_fault+0xf2/0x7e0
[  354.512072]  ? vmalloc_sync_all+0x30/0x30
[  354.516218]  ? error_entry+0x70/0xd0
[  354.519928]  ? trace_hardirqs_off_caller+0xbb/0x310
[  354.524943]  ? trace_hardirqs_on_caller+0xc0/0x310
[  354.529874]  ? syscall_return_slowpath+0x5e0/0x5e0
[  354.534813]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  354.539673]  ? trace_hardirqs_on_caller+0x310/0x310
[  354.544689]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  354.550144]  ? prepare_exit_to_usermode+0x291/0x3b0
[  354.555161]  ? page_fault+0x8/0x30
[  354.558719]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  354.563558]  ? page_fault+0x8/0x30
[  354.567114]  page_fault+0x1e/0x30
[  354.570562] RIP: 0033:0x40f9c0
[  354.573767] Code: Bad RIP value.
[  354.577131] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  354.582494] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  354.589762] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  354.597026] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  354.604285] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  354.611554] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  354.618865] warn_alloc_show_mem: 1 callbacks suppressed
[  354.618878] CPU: 0 PID: 11020 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #82
[  354.618880] Mem-Info:
[  354.618909] active_anon:54833 inactive_anon:712 isolated_anon:0
[  354.618909]  active_file:11 inactive_file:12 isolated_file:0
[  354.618909]  unevictable:0 dirty:0 writeback:0 unstable:0
[  354.618909]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  354.618909]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  354.618909]  free:13768 free_pcp:742 free_cma:0
[  354.624269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  354.631558] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  354.633955] Call Trace:
[  354.666821] 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
[  354.676173]  dump_stack+0x244/0x39d
[  354.703729] lowmem_reserve[]: 0 2818 6321 6321
[  354.706314]  ? dump_stack_print_info.cold.1+0x20/0x20
[  354.732394] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  354.736031]  warn_alloc.cold.116+0xb7/0x1bd
[  354.740578] lowmem_reserve[]: 0 0 3503 3503
[  354.745762]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  354.773497] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  354.777816]  ? lock_downgrade+0x900/0x900
[  354.782109] lowmem_reserve[]: 0 0 0 0
[  354.786948]  ? trace_hardirqs_off+0xb8/0x310
[  354.816537] 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
[  354.820699]  ? trace_hardirqs_off+0xb8/0x310
[  354.824472] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  354.828875]  __alloc_pages_slowpath+0x26e8/0x2e10
[  354.842366] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  354.846803]  ? warn_alloc+0x120/0x120
[  354.862457] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  354.867341]  ? warn_alloc+0x120/0x120
[  354.882704] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  354.886507]  ? warn_alloc+0x120/0x120
[  354.895312] 782 total pagecache pages
[  354.899102]  ? find_held_lock+0x36/0x1c0
[  354.907669] 0 pages in swap cache
[  354.911458]  ? print_usage_bug+0xc0/0xc0
[  354.915259] Swap cache stats: add 0, delete 0, find 0/0
[  354.919315]  ? print_usage_bug+0xc0/0xc0
[  354.922757] Free swap  = 0kB
[  354.926818]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  354.932151] Total swap = 0kB
[  354.936203]  ? should_fail+0x22d/0xd01
[  354.939193] 1965979 pages RAM
[  354.944719]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  354.947712] 0 pages HighMem/MovableOnly
[  354.951594]  ? __lock_acquire+0x62f/0x4c20
[  354.954675] 342853 pages reserved
[  354.959769]  ? should_fail+0x22d/0xd01
[  354.963716] 0 pages cma reserved
[  354.963806] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  354.967961]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  354.967995]  ? mark_held_locks+0x130/0x130
[  354.971498] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  354.975312]  ? mark_held_locks+0x130/0x130
[  354.978666] syz-fuzzer cpuset=/ mems_allowed=0
[  354.985152]  ? __lock_is_held+0xb5/0x140
[  355.017699]  ? zap_class+0x640/0x640
[  355.021407]  ? update_curr+0x344/0xbd0
[  355.025294]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.030829]  ? check_preemption_disabled+0x48/0x280
[  355.035854]  ? __lock_is_held+0xb5/0x140
[  355.039921]  __alloc_pages_nodemask+0xa80/0xde0
[  355.044587]  ? zap_class+0x640/0x640
[  355.048307]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  355.053335]  ? find_held_lock+0x36/0x1c0
[  355.057404]  ? ____cache_alloc_node+0x1c7/0x1e0
[  355.062070]  ? lock_downgrade+0x900/0x900
[  355.066220]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  355.071760]  cache_grow_begin+0xa5/0x8c0
[  355.075824]  ? do_raw_spin_unlock+0xa7/0x330
[  355.080244]  fallback_alloc+0x204/0x2e0
[  355.084286]  ____cache_alloc_node+0x1c7/0x1e0
[  355.088802]  kmem_cache_alloc+0x1f8/0x730
[  355.092963]  skb_clone+0x1bb/0x500
[  355.096539]  ? skb_split+0x11e0/0x11e0
[  355.100425]  ? kasan_check_read+0x11/0x20
[  355.104574]  ? __schedule+0x168a/0x21d0
[  355.108572]  ? trace_hardirqs_off_caller+0x310/0x310
[  355.113709]  ? lock_pin_lock+0x350/0x350
[  355.117780]  bpf_clone_redirect+0xb9/0x490
[  355.122028]  ? __schedule+0x168a/0x21d0
[  355.126016]  bpf_prog_bebbfe2050753572+0xf6f/0x1000
[  355.131037]  ? __sched_text_start+0x8/0x8
[  355.135189]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  355.139772]  ? retint_kernel+0x2d/0x2d
[  355.143663]  ? trace_hardirqs_on_caller+0xc0/0x310
[  355.148595]  ? find_held_lock+0x36/0x1c0
[  355.152670]  ? lock_acquire+0x1ed/0x520
[  355.156679]  ? bpf_test_run+0x3cb/0x780
[  355.160655]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.166225]  ? check_preemption_disabled+0x48/0x280
[  355.171271]  ? kasan_check_read+0x11/0x20
[  355.175423]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  355.180706]  ? rcu_softirq_qs+0x20/0x20
[  355.184699]  ? preempt_schedule+0x4d/0x60
[  355.188851]  ? ___preempt_schedule+0x16/0x18
[  355.193274]  ? bpf_test_run+0x25d/0x780
[  355.197271]  ? netlink_diag_dump+0x2a0/0x2a0
[  355.201686]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  355.207230]  ? bpf_test_init.isra.10+0x70/0x100
[  355.211915]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  355.216685]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  355.221546]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  355.227085]  ? fput+0x130/0x1a0
[  355.230370]  ? __bpf_prog_get+0x9b/0x290
[  355.234443]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  355.239289]  ? bpf_prog_test_run+0x130/0x1a0
[  355.243703]  ? __x64_sys_bpf+0x3d8/0x520
[  355.247768]  ? bpf_prog_get+0x20/0x20
[  355.251597]  ? do_syscall_64+0x1b9/0x820
[  355.255661]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  355.261042]  ? syscall_return_slowpath+0x5e0/0x5e0
[  355.265979]  ? trace_hardirqs_on_caller+0x310/0x310
[  355.271022]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  355.276047]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  355.282715]  ? __switch_to_asm+0x40/0x70
[  355.286775]  ? __switch_to_asm+0x34/0x70
[  355.290846]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  355.295697]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  355.301075] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  355.301899] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  355.308018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  355.318313] ksoftirqd/0 cpuset=/ mems_allowed=0
[  355.327667] Call Trace:
[  355.334893]  <IRQ>
[  355.337048]  dump_stack+0x244/0x39d
[  355.340680]  ? dump_stack_print_info.cold.1+0x20/0x20
[  355.345884]  warn_alloc.cold.116+0xb7/0x1bd
[  355.350204]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  355.355070]  ? lock_downgrade+0x900/0x900
[  355.359230]  ? trace_hardirqs_off+0xb8/0x310
[  355.363643]  ? trace_hardirqs_off+0xb8/0x310
[  355.368057]  __alloc_pages_slowpath+0x26e8/0x2e10
[  355.372928]  ? warn_alloc+0x120/0x120
[  355.376730]  ? print_usage_bug+0xc0/0xc0
[  355.380795]  ? warn_alloc+0x120/0x120
[  355.384603]  ? warn_alloc+0x120/0x120
[  355.388406]  ? print_usage_bug+0xc0/0xc0
[  355.392469]  ? kvm_clock_read+0x18/0x30
[  355.396447]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  355.401502]  ? print_usage_bug+0xc0/0xc0
[  355.405568]  ? __lock_acquire+0x62f/0x4c20
[  355.409842]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  355.415394]  ? should_fail+0x22d/0xd01
[  355.419284]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  355.424564]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  355.429673]  ? __lock_acquire+0x62f/0x4c20
[  355.433914]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  355.439023]  ? __lock_acquire+0x62f/0x4c20
[  355.443273]  ? should_fail+0x22d/0xd01
[  355.447156]  ? rcu_irq_exit+0x1a2/0x390
[  355.451139]  ? mark_held_locks+0x130/0x130
[  355.455400]  ? mark_held_locks+0x130/0x130
[  355.459655]  ? mark_held_locks+0xc7/0x130
[  355.463804]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  355.468818]  ? zap_class+0x640/0x640
[  355.472530]  ? print_usage_bug+0xc0/0xc0
[  355.476598]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.482148]  ? check_preemption_disabled+0x48/0x280
[  355.487173]  ? __lock_is_held+0xb5/0x140
[  355.491238]  __alloc_pages_nodemask+0xa80/0xde0
[  355.495903]  ? zap_class+0x640/0x640
[  355.499646]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  355.504677]  ? find_held_lock+0x36/0x1c0
[  355.508748]  ? ____cache_alloc_node+0x1c7/0x1e0
[  355.513427]  ? lock_downgrade+0x900/0x900
[  355.517595]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.523139]  cache_grow_begin+0xa5/0x8c0
[  355.527201]  ? do_raw_spin_unlock+0xa7/0x330
[  355.531637]  fallback_alloc+0x204/0x2e0
[  355.535620]  ____cache_alloc_node+0x1c7/0x1e0
[  355.540135]  kmem_cache_alloc_node+0xe3/0x730
[  355.544631]  ? ipv6_get_ifaddr+0x42e/0x620
[  355.548876]  __alloc_skb+0x119/0x770
[  355.552586]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  355.557870]  ? netdev_alloc_frag+0x1f0/0x1f0
[  355.562276]  ? lock_downgrade+0x900/0x900
[  355.566467]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.572037]  ? refcount_sub_and_test_checked+0x203/0x310
[  355.577502]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  355.582955]  ? addrconf_rs_timer+0x690/0x690
[  355.587383]  ndisc_alloc_skb+0x144/0x340
[  355.591460]  ndisc_send_rs+0x331/0x6e0
[  355.595385]  addrconf_rs_timer+0x314/0x690
[  355.599630]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.603887]  call_timer_fn+0x272/0x920
[  355.607777]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.612017]  ? process_timeout+0x40/0x40
[  355.616087]  ? mark_held_locks+0xc7/0x130
[  355.620233]  ? _raw_spin_unlock_irq+0x27/0x80
[  355.624732]  ? _raw_spin_unlock_irq+0x27/0x80
[  355.629227]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.633465]  ? lockdep_hardirqs_on+0x296/0x5b0
[  355.638051]  ? trace_hardirqs_on+0xbd/0x310
[  355.642372]  ? kasan_check_read+0x11/0x20
[  355.646531]  ? __run_timers+0x7da/0xc70
[  355.650517]  ? trace_hardirqs_off_caller+0x310/0x310
[  355.655632]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.659869]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.664116]  __run_timers+0x7e5/0xc70
[  355.668247]  ? timer_fixup_init+0x70/0x70
[  355.672393]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  355.677429]  ? zap_class+0x640/0x640
[  355.681146]  ? print_usage_bug+0xc0/0xc0
[  355.685223]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  355.690459]  ? find_held_lock+0x36/0x1c0
[  355.694535]  ? zap_class+0x640/0x640
[  355.698279]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.703830]  ? check_preemption_disabled+0x48/0x280
[  355.708899]  ? __lock_is_held+0xb5/0x140
[  355.712954]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.718496]  ? check_preemption_disabled+0x48/0x280
[  355.723512]  run_timer_softirq+0x52/0xb0
[  355.727574]  ? rcu_read_lock_sched_held+0x14f/0x180
[  355.732608]  __do_softirq+0x308/0xb7e
[  355.736411]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  355.740899]  ? lock_downgrade+0x900/0x900
[  355.745059]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  355.750167]  ? pvclock_read_flags+0x160/0x160
[  355.754667]  ? lapic_next_event+0x5a/0x90
[  355.758817]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.764356]  ? kvm_clock_read+0x18/0x30
[  355.768330]  ? kvm_sched_clock_read+0x9/0x20
[  355.772741]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  355.778286]  ? check_preemption_disabled+0x48/0x280
[  355.783334]  irq_exit+0x17f/0x1c0
[  355.786789]  smp_apic_timer_interrupt+0x1cb/0x760
[  355.791645]  ? smp_call_function_single_interrupt+0x159/0x650
[  355.797531]  ? smp_call_function_single_interrupt+0x650/0x650
[  355.803421]  ? interrupt_entry+0xb5/0xc0
[  355.807496]  ? trace_hardirqs_off_caller+0xbb/0x310
[  355.812511]  ? trace_hardirqs_off_caller+0xbb/0x310
[  355.817540]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  355.822380]  ? trace_hardirqs_on_caller+0x310/0x310
[  355.827393]  ? trace_hardirqs_on_caller+0x310/0x310
[  355.832417]  ? task_prio+0x50/0x50
[  355.835961]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.841507]  ? check_preemption_disabled+0x48/0x280
[  355.846541]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  355.851390]  apic_timer_interrupt+0xf/0x20
[  355.855619]  </IRQ>
[  355.857861] RIP: 0010:dump_stack+0x358/0x39d
[  355.862272] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  355.881170] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  355.888872] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  355.896133] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  355.903395] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  355.910682] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  355.917967] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  355.925258]  ? dump_stack+0x34f/0x39d
[  355.929068]  ? dump_stack_print_info.cold.1+0x20/0x20
[  355.934278]  ? mark_held_locks+0x130/0x130
[  355.938513]  ? mark_held_locks+0x130/0x130
[  355.942754]  dump_header+0x27b/0xf72
[  355.946487]  ? pagefault_out_of_memory+0x197/0x197
[  355.951419]  ? __lock_acquire+0x62f/0x4c20
[  355.955670]  ? percpu_ref_get_many+0x240/0x240
[  355.960263]  ? print_usage_bug+0xc0/0xc0
[  355.964343]  ? zap_class+0x640/0x640
[  355.968063]  ? print_usage_bug+0xc0/0xc0
[  355.972137]  ? print_usage_bug+0xc0/0xc0
[  355.976199]  ? zap_class+0x640/0x640
[  355.979915]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.985457]  ? find_held_lock+0x36/0x1c0
[  355.989522]  ? mark_held_locks+0xc7/0x130
[  355.993698]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  355.998795]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  356.003895]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  356.008476]  ? trace_hardirqs_on+0xbd/0x310
[  356.012796]  ? kasan_check_read+0x11/0x20
[  356.016947]  ? ___ratelimit+0x3b4/0x672
[  356.020922]  ? trace_hardirqs_off_caller+0x310/0x310
[  356.026026]  ? trace_hardirqs_on+0x310/0x310
[  356.030433]  ? lock_downgrade+0x900/0x900
[  356.034601]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  356.039718]  ? ___ratelimit+0x3b9/0x672
[  356.043693]  ? idr_get_free+0xf70/0xf70
[  356.047668]  ? find_held_lock+0x36/0x1c0
[  356.051737]  oom_kill_process.cold.27+0x10/0x903
[  356.056503]  ? zap_class+0x640/0x640
[  356.060218]  ? check_preemption_disabled+0x48/0x280
[  356.065237]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  356.070163]  ? kasan_check_read+0x11/0x20
[  356.074330]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  356.079620]  ? oom_evaluate_task+0x540/0x540
[  356.084029]  ? find_held_lock+0x36/0x1c0
[  356.088099]  ? out_of_memory+0x974/0x1430
[  356.092251]  ? lock_downgrade+0x900/0x900
[  356.096402]  ? check_preemption_disabled+0x48/0x280
[  356.101417]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  356.106343]  ? kasan_check_read+0x11/0x20
[  356.110490]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  356.115801]  ? rcu_softirq_qs+0x20/0x20
[  356.119785]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.125335]  ? oom_evaluate_task+0x302/0x540
[  356.129742]  out_of_memory+0xa84/0x1430
[  356.133743]  ? oom_killer_disable+0x3a0/0x3a0
[  356.138240]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  356.143200]  ? __ww_mutex_check_waiters+0x160/0x160
[  356.148222]  __alloc_pages_slowpath+0x2354/0x2e10
[  356.153106]  ? warn_alloc+0x120/0x120
[  356.156905]  ? mark_held_locks+0x130/0x130
[  356.161178]  ? find_get_entry+0xaae/0x1120
[  356.165441]  ? filemap_map_pages+0x1a20/0x1a20
[  356.170033]  ? zap_class+0x640/0x640
[  356.173751]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.179290]  ? check_preemption_disabled+0x48/0x280
[  356.184352]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.189886]  ? should_fail+0x22d/0xd01
[  356.193795]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  356.198909]  ? zap_class+0x640/0x640
[  356.202644]  ? __lock_is_held+0xb5/0x140
[  356.206727]  ? mark_held_locks+0x130/0x130
[  356.210968]  ? lock_release+0xa00/0xa00
[  356.214949]  ? perf_trace_sched_process_exec+0x860/0x860
[  356.220409]  ? xa_load+0x2ba/0x460
[  356.223944]  ? lock_downgrade+0x900/0x900
[  356.228126]  ? __might_sleep+0x95/0x190
[  356.232101]  __alloc_pages_nodemask+0xa80/0xde0
[  356.236775]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  356.241803]  ? __page_cache_alloc+0x191/0x5c0
[  356.246306]  ? xa_load+0x2e1/0x460
[  356.249847]  ? xa_clear_mark+0x40/0x40
[  356.253737]  ? zap_class+0x640/0x640
[  356.257469]  ? zap_class+0x640/0x640
[  356.261181]  ? zap_class+0x640/0x640
[  356.264894]  ? __do_page_cache_readahead+0x663/0x810
[  356.270010]  ? find_held_lock+0x36/0x1c0
[  356.274076]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  356.279619]  alloc_pages_current+0x173/0x350
[  356.284036]  __page_cache_alloc+0x38c/0x5c0
[  356.288357]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  356.293286]  ? kasan_check_read+0x11/0x20
[  356.297433]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  356.302713]  ? generic_perform_write+0x6a0/0x6a0
[  356.307473]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.313017]  ? check_preemption_disabled+0x48/0x280
[  356.318047]  filemap_fault+0x1595/0x25f0
[  356.322125]  ? __lock_page_or_retry+0xa00/0xa00
[  356.326796]  ? mark_held_locks+0x130/0x130
[  356.331072]  ? filemap_map_pages+0xd6b/0x1a20
[  356.335569]  ? lock_downgrade+0x900/0x900
[  356.339719]  ? check_preemption_disabled+0x48/0x280
[  356.344754]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  356.349689]  ? kasan_check_read+0x11/0x20
[  356.353876]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  356.359152]  ? rcu_softirq_qs+0x20/0x20
[  356.363137]  ? filemap_map_pages+0xd92/0x1a20
[  356.367646]  ? find_get_entries_tag+0x1400/0x1400
[  356.372496]  ? debug_object_destroy+0x2b0/0x2b0
[  356.377190]  ? lock_pi_update_atomic+0x150/0x150
[  356.381966]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.387523]  ? lock_acquire+0x1ed/0x520
[  356.391498]  ? ext4_filemap_fault+0x7a/0xad
[  356.395828]  ? lock_release+0xa00/0xa00
[  356.399803]  ? perf_trace_sched_process_exec+0x860/0x860
[  356.405269]  ? print_usage_bug+0xc0/0xc0
[  356.409381]  ? print_usage_bug+0xc0/0xc0
[  356.413459]  ? down_read+0x8d/0x120
[  356.417085]  ? ext4_filemap_fault+0x7a/0xad
[  356.421427]  ? __down_interruptible+0x700/0x700
[  356.426107]  ext4_filemap_fault+0x82/0xad
[  356.430257]  __do_fault+0x100/0x6b0
[  356.433889]  ? pmd_devmap_trans_unstable+0x220/0x220
[  356.439021]  ? mark_held_locks+0x130/0x130
[  356.443261]  ? mark_held_locks+0x130/0x130
[  356.447513]  ? debug_smp_processor_id+0x1c/0x20
[  356.452195]  ? perf_trace_lock+0x14d/0x7a0
[  356.456469]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.462021]  __handle_mm_fault+0x3ea0/0x5be0
[  356.466442]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  356.471287]  ? lock_is_held_type+0x210/0x210
[  356.475703]  ? ksys_dup3+0x680/0x680
[  356.479431]  ? zap_class+0x640/0x640
[  356.483145]  ? zap_class+0x640/0x640
[  356.486860]  ? __x64_sys_futex+0x53e/0x6a0
[  356.491101]  ? find_held_lock+0x36/0x1c0
[  356.495175]  ? handle_mm_fault+0x42a/0xc70
[  356.499415]  ? lock_downgrade+0x900/0x900
[  356.503577]  ? check_preemption_disabled+0x48/0x280
[  356.508598]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  356.513528]  ? kasan_check_read+0x11/0x20
[  356.517677]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  356.522955]  ? rcu_softirq_qs+0x20/0x20
[  356.526938]  ? trace_hardirqs_off_caller+0x310/0x310
[  356.532042]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.537578]  ? check_preemption_disabled+0x48/0x280
[  356.542599]  handle_mm_fault+0x54f/0xc70
[  356.546658]  ? __handle_mm_fault+0x5be0/0x5be0
[  356.551239]  ? find_vma+0x34/0x190
[  356.554784]  __do_page_fault+0x5e8/0xe60
[  356.558839]  ? trace_hardirqs_off+0xb8/0x310
[  356.563266]  do_page_fault+0xf2/0x7e0
[  356.567083]  ? vmalloc_sync_all+0x30/0x30
[  356.571235]  ? error_entry+0x70/0xd0
[  356.574952]  ? trace_hardirqs_off_caller+0xbb/0x310
[  356.579969]  ? trace_hardirqs_on_caller+0xc0/0x310
[  356.584905]  ? syscall_return_slowpath+0x5e0/0x5e0
[  356.589833]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  356.594673]  ? trace_hardirqs_on_caller+0x310/0x310
[  356.599703]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  356.605168]  ? prepare_exit_to_usermode+0x291/0x3b0
[  356.610184]  ? page_fault+0x8/0x30
[  356.613723]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  356.618565]  ? page_fault+0x8/0x30
[  356.622136]  page_fault+0x1e/0x30
[  356.625583] RIP: 0033:0x40f9c0
[  356.628791] Code: Bad RIP value.
[  356.632154] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  356.637515] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  356.644797] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  356.652083] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  356.659347] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  356.666627] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  356.673916] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  356.673921] warn_alloc_show_mem: 1 callbacks suppressed
[  356.673928] Mem-Info:
[  356.680681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  356.686046] active_anon:54833 inactive_anon:712 isolated_anon:0
[  356.686046]  active_file:11 inactive_file:12 isolated_file:0
[  356.686046]  unevictable:0 dirty:0 writeback:0 unstable:0
[  356.686046]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  356.686046]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  356.686046]  free:13768 free_pcp:742 free_cma:0
[  356.688415] Call Trace:
[  356.697832] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  356.730697]  dump_stack+0x244/0x39d
[  356.733258] 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
[  356.760841]  ? dump_stack_print_info.cold.1+0x20/0x20
[  356.764442] lowmem_reserve[]: 0 2818 6321 6321
[  356.790551]  warn_alloc.cold.116+0xb7/0x1bd
[  356.795706] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  356.800464]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  356.804786] lowmem_reserve[]: 0 0 3503 3503
[  356.832540]  ? lock_downgrade+0x900/0x900
[  356.837362] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  356.841678]  ? trace_hardirqs_off+0xb8/0x310
[  356.845789] lowmem_reserve[]: 0 0 0 0
[  356.874940]  ? trace_hardirqs_off+0xb8/0x310
[  356.879341] 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
[  356.883140]  __alloc_pages_slowpath+0x26e8/0x2e10
[  356.887519] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  356.901054]  ? warn_alloc+0x120/0x120
[  356.905873] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  356.921558]  ? warn_alloc+0x120/0x120
[  356.925358] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  356.940693]  ? warn_alloc+0x120/0x120
[  356.944472] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  356.953294]  ? print_usage_bug+0xc0/0xc0
[  356.957067] 782 total pagecache pages
[  356.965642]  ? check_preemption_disabled+0x48/0x280
[  356.969680] 0 pages in swap cache
[  356.973466]  ? print_usage_bug+0xc0/0xc0
[  356.978475] Swap cache stats: add 0, delete 0, find 0/0
[  356.981915]  ? kasan_check_read+0x11/0x20
[  356.985964] Free swap  = 0kB
[  356.991341]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  356.995479] Total swap = 0kB
[  356.998493]  ? rcu_softirq_qs+0x20/0x20
[  357.003744] 1965979 pages RAM
[  357.006798]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  357.010745] 0 pages HighMem/MovableOnly
[  357.013844]  ? should_fail+0x22d/0xd01
[  357.019378] 342853 pages reserved
[  357.019385] 0 pages cma reserved
[  357.023351]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  357.027285] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  357.030650]  ? __lock_acquire+0x62f/0x4c20
[  357.030673]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  357.030702]  ? __lock_acquire+0x62f/0x4c20
[  357.034116] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  357.039143]  ? should_fail+0x22d/0xd01
[  357.045645] syz-fuzzer cpuset=/ mems_allowed=0
[  357.049891]  ? mark_held_locks+0x130/0x130
[  357.082063]  ? mark_held_locks+0x130/0x130
[  357.086295]  ? __enqueue_entity+0x10d/0x1f0
[  357.090620]  ? zap_class+0x640/0x640
[  357.094332]  ? print_usage_bug+0xc0/0xc0
[  357.098412]  ? enqueue_entity+0x34b/0x20a0
[  357.102676]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.108210]  ? check_preemption_disabled+0x48/0x280
[  357.113234]  ? __lock_is_held+0xb5/0x140
[  357.117301]  __alloc_pages_nodemask+0xa80/0xde0
[  357.122008]  ? zap_class+0x640/0x640
[  357.125727]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  357.130750]  ? find_held_lock+0x36/0x1c0
[  357.134834]  ? ____cache_alloc_node+0x1c7/0x1e0
[  357.139503]  ? lock_downgrade+0x900/0x900
[  357.143654]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.149193]  cache_grow_begin+0xa5/0x8c0
[  357.153254]  ? do_raw_spin_unlock+0xa7/0x330
[  357.157677]  fallback_alloc+0x204/0x2e0
[  357.161656]  ____cache_alloc_node+0x1c7/0x1e0
[  357.166155]  kmem_cache_alloc_node+0xe3/0x730
[  357.170681]  ? ipv6_get_ifaddr+0x42e/0x620
[  357.174981]  __alloc_skb+0x119/0x770
[  357.178727]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  357.184029]  ? netdev_alloc_frag+0x1f0/0x1f0
[  357.188436]  ? lock_downgrade+0x900/0x900
[  357.192603]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.198152]  ? refcount_sub_and_test_checked+0x203/0x310
[  357.203604]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  357.209052]  ? addrconf_rs_timer+0x690/0x690
[  357.213469]  ndisc_alloc_skb+0x144/0x340
[  357.217533]  ndisc_send_rs+0x331/0x6e0
[  357.221426]  addrconf_rs_timer+0x314/0x690
[  357.225686]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.230006]  call_timer_fn+0x272/0x920
[  357.233894]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.238127]  ? process_timeout+0x40/0x40
[  357.242197]  ? __run_timers+0x7da/0xc70
[  357.246192]  ? _raw_spin_unlock_irq+0x27/0x80
[  357.250689]  ? _raw_spin_unlock_irq+0x27/0x80
[  357.255180]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.259456]  ? lockdep_hardirqs_on+0x296/0x5b0
[  357.264044]  ? trace_hardirqs_on+0xbd/0x310
[  357.268362]  ? kasan_check_read+0x11/0x20
[  357.272505]  ? __run_timers+0x7da/0xc70
[  357.276480]  ? trace_hardirqs_off_caller+0x310/0x310
[  357.281600]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.285838]  __run_timers+0x7e5/0xc70
[  357.289648]  ? timer_fixup_init+0x70/0x70
[  357.293798]  ? _raw_spin_unlock_irq+0x27/0x80
[  357.298305]  ? _raw_spin_unlock_irq+0x27/0x80
[  357.302799]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  357.307379]  ? trace_hardirqs_on+0xbd/0x310
[  357.311718]  ? kasan_check_read+0x11/0x20
[  357.315881]  ? finish_task_switch+0x1f4/0x910
[  357.320406]  ? trace_hardirqs_off_caller+0x310/0x310
[  357.325546]  ? compat_start_thread+0x80/0x80
[  357.329970]  ? pvclock_read_flags+0x160/0x160
[  357.334467]  ? __switch_to_asm+0x34/0x70
[  357.338530]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.344065]  ? check_preemption_disabled+0x48/0x280
[  357.349102]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  357.354641]  ? rcu_pm_notify+0xc0/0xc0
[  357.358532]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.364074]  ? check_preemption_disabled+0x48/0x280
[  357.369092]  run_timer_softirq+0x52/0xb0
[  357.373174]  ? rcu_read_lock_sched_held+0x14f/0x180
[  357.378208]  __do_softirq+0x308/0xb7e
[  357.382043]  ? retint_kernel+0x2d/0x2d
[  357.386033]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  357.391134]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  357.396580]  ? trace_hardirqs_on+0x310/0x310
[  357.401026]  ? schedule+0x108/0x460
[  357.404652]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  357.409411]  ? trace_hardirqs_off+0xb8/0x310
[  357.413815]  ? smpboot_thread_fn+0x68b/0xa00
[  357.418225]  ? trace_hardirqs_on+0x310/0x310
[  357.422655]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  357.428196]  ? check_preemption_disabled+0x48/0x280
[  357.433220]  ? takeover_tasklets+0xa90/0xa90
[  357.437632]  run_ksoftirqd+0x5e/0x100
[  357.441434]  smpboot_thread_fn+0x68b/0xa00
[  357.445677]  ? sort_range+0x30/0x30
[  357.449310]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  357.454425]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  357.459969]  ? __kthread_parkme+0xfb/0x1a0
[  357.464213]  ? sort_range+0x30/0x30
[  357.467862]  kthread+0x35a/0x440
[  357.471233]  ? kthread_stop+0x900/0x900
[  357.475214]  ret_from_fork+0x3a/0x50
[  357.478944] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  357.479082] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  357.485918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  357.485923] Call Trace:
[  357.485930]  <IRQ>
[  357.485947]  dump_stack+0x244/0x39d
[  357.485966]  ? dump_stack_print_info.cold.1+0x20/0x20
[  357.492534] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  357.501813]  warn_alloc.cold.116+0xb7/0x1bd
[  357.504371] ksoftirqd/0 cpuset=/ mems_allowed=0
[  357.506515]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  357.539428]  ? lock_downgrade+0x900/0x900
[  357.543598]  ? trace_hardirqs_off+0xb8/0x310
[  357.548018]  ? trace_hardirqs_off+0xb8/0x310
[  357.552436]  __alloc_pages_slowpath+0x26e8/0x2e10
[  357.557336]  ? warn_alloc+0x120/0x120
[  357.561144]  ? print_usage_bug+0xc0/0xc0
[  357.565211]  ? warn_alloc+0x120/0x120
[  357.569023]  ? warn_alloc+0x120/0x120
[  357.572826]  ? print_usage_bug+0xc0/0xc0
[  357.576904]  ? print_usage_bug+0xc0/0xc0
[  357.580982]  ? __lock_acquire+0x62f/0x4c20
[  357.585235]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  357.590779]  ? should_fail+0x22d/0xd01
[  357.594671]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  357.599777]  ? __lock_acquire+0x62f/0x4c20
[  357.604023]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  357.609125]  ? __lock_acquire+0x62f/0x4c20
[  357.613376]  ? should_fail+0x22d/0xd01
[  357.617264]  ? find_held_lock+0x36/0x1c0
[  357.621331]  ? mark_held_locks+0x130/0x130
[  357.625597]  ? mark_held_locks+0x130/0x130
[  357.629845]  ? zap_class+0x640/0x640
[  357.633564]  ? zap_class+0x640/0x640
[  357.637276]  ? print_usage_bug+0xc0/0xc0
[  357.641346]  ? do_raw_spin_unlock+0xa7/0x330
[  357.645765]  ? zap_class+0x640/0x640
[  357.649500]  ? print_usage_bug+0xc0/0xc0
[  357.653558]  ? wq_watchdog_touch+0x9c/0xfe
[  357.657792]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.663325]  ? check_preemption_disabled+0x48/0x280
[  357.668507]  ? __lock_is_held+0xb5/0x140
[  357.672603]  __alloc_pages_nodemask+0xa80/0xde0
[  357.677299]  ? zap_class+0x640/0x640
[  357.681059]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  357.686104]  ? find_held_lock+0x36/0x1c0
[  357.690173]  ? ____cache_alloc_node+0x1c7/0x1e0
[  357.694839]  ? lock_downgrade+0x900/0x900
[  357.698999]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.704580]  cache_grow_begin+0xa5/0x8c0
[  357.708665]  ? do_raw_spin_unlock+0xa7/0x330
[  357.713090]  fallback_alloc+0x204/0x2e0
[  357.717104]  ____cache_alloc_node+0x1c7/0x1e0
[  357.721634]  kmem_cache_alloc_node+0xe3/0x730
[  357.726130]  ? ipv6_get_ifaddr+0x42e/0x620
[  357.730372]  __alloc_skb+0x119/0x770
[  357.734112]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  357.739405]  ? netdev_alloc_frag+0x1f0/0x1f0
[  357.743827]  ? lock_downgrade+0x900/0x900
[  357.748004]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.753572]  ? refcount_sub_and_test_checked+0x203/0x310
[  357.759031]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  357.764484]  ? addrconf_rs_timer+0x690/0x690
[  357.768919]  ndisc_alloc_skb+0x144/0x340
[  357.772997]  ndisc_send_rs+0x331/0x6e0
[  357.776895]  addrconf_rs_timer+0x314/0x690
[  357.781140]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.785388]  call_timer_fn+0x272/0x920
[  357.789275]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.793510]  ? process_timeout+0x40/0x40
[  357.797594]  ? mark_held_locks+0xc7/0x130
[  357.801781]  ? _raw_spin_unlock_irq+0x27/0x80
[  357.806277]  ? _raw_spin_unlock_irq+0x27/0x80
[  357.810773]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.815012]  ? lockdep_hardirqs_on+0x296/0x5b0
[  357.819597]  ? trace_hardirqs_on+0xbd/0x310
[  357.823919]  ? kasan_check_read+0x11/0x20
[  357.828089]  ? __run_timers+0x7da/0xc70
[  357.832063]  ? trace_hardirqs_off_caller+0x310/0x310
[  357.837186]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.841458]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.845711]  __run_timers+0x7e5/0xc70
[  357.849524]  ? timer_fixup_init+0x70/0x70
[  357.853673]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  357.858689]  ? zap_class+0x640/0x640
[  357.862407]  ? print_usage_bug+0xc0/0xc0
[  357.866470]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  357.871677]  ? find_held_lock+0x36/0x1c0
[  357.875745]  ? zap_class+0x640/0x640
[  357.879485]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.885027]  ? check_preemption_disabled+0x48/0x280
[  357.890049]  ? __lock_is_held+0xb5/0x140
[  357.894115]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.899668]  ? check_preemption_disabled+0x48/0x280
[  357.904691]  run_timer_softirq+0x52/0xb0
[  357.908754]  ? rcu_read_lock_sched_held+0x14f/0x180
[  357.913780]  __do_softirq+0x308/0xb7e
[  357.917586]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  357.922078]  ? lock_downgrade+0x900/0x900
[  357.926234]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  357.931350]  ? pvclock_read_flags+0x160/0x160
[  357.935849]  ? lapic_next_event+0x5a/0x90
[  357.940008]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.945554]  ? kvm_clock_read+0x18/0x30
[  357.949530]  ? kvm_sched_clock_read+0x9/0x20
[  357.953938]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  357.959490]  ? check_preemption_disabled+0x48/0x280
[  357.964532]  irq_exit+0x17f/0x1c0
[  357.967993]  smp_apic_timer_interrupt+0x1cb/0x760
[  357.972856]  ? smp_call_function_single_interrupt+0x159/0x650
[  357.978738]  ? smp_call_function_single_interrupt+0x650/0x650
[  357.984625]  ? interrupt_entry+0xb5/0xc0
[  357.988691]  ? trace_hardirqs_off_caller+0xbb/0x310
[  357.993715]  ? trace_hardirqs_off_caller+0xbb/0x310
[  357.998731]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  358.003600]  ? trace_hardirqs_on_caller+0x310/0x310
[  358.008616]  ? trace_hardirqs_on_caller+0x310/0x310
[  358.013650]  ? task_prio+0x50/0x50
[  358.017194]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.022746]  ? check_preemption_disabled+0x48/0x280
[  358.027777]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  358.032629]  apic_timer_interrupt+0xf/0x20
[  358.036869]  </IRQ>
[  358.039111] RIP: 0010:dump_stack+0x358/0x39d
[  358.043523] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  358.062525] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  358.070229] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  358.077497] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  358.084778] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  358.092044] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  358.099332] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  358.106615]  ? dump_stack+0x34f/0x39d
[  358.110427]  ? dump_stack_print_info.cold.1+0x20/0x20
[  358.115618]  ? mark_held_locks+0x130/0x130
[  358.119852]  ? mark_held_locks+0x130/0x130
[  358.124094]  dump_header+0x27b/0xf72
[  358.127855]  ? pagefault_out_of_memory+0x197/0x197
[  358.132805]  ? __lock_acquire+0x62f/0x4c20
[  358.137040]  ? percpu_ref_get_many+0x240/0x240
[  358.141618]  ? print_usage_bug+0xc0/0xc0
[  358.145710]  ? zap_class+0x640/0x640
[  358.149436]  ? print_usage_bug+0xc0/0xc0
[  358.153495]  ? print_usage_bug+0xc0/0xc0
[  358.157556]  ? zap_class+0x640/0x640
[  358.161305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.166841]  ? find_held_lock+0x36/0x1c0
[  358.170916]  ? mark_held_locks+0xc7/0x130
[  358.175093]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  358.180189]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  358.185319]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  358.189915]  ? trace_hardirqs_on+0xbd/0x310
[  358.194248]  ? kasan_check_read+0x11/0x20
[  358.198393]  ? ___ratelimit+0x3b4/0x672
[  358.202377]  ? trace_hardirqs_off_caller+0x310/0x310
[  358.207493]  ? trace_hardirqs_on+0x310/0x310
[  358.211926]  ? lock_downgrade+0x900/0x900
[  358.216074]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  358.221173]  ? ___ratelimit+0x3b9/0x672
[  358.225151]  ? idr_get_free+0xf70/0xf70
[  358.229120]  ? find_held_lock+0x36/0x1c0
[  358.233189]  oom_kill_process.cold.27+0x10/0x903
[  358.237950]  ? zap_class+0x640/0x640
[  358.241667]  ? check_preemption_disabled+0x48/0x280
[  358.246688]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  358.251629]  ? kasan_check_read+0x11/0x20
[  358.255789]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  358.261063]  ? oom_evaluate_task+0x540/0x540
[  358.265473]  ? find_held_lock+0x36/0x1c0
[  358.269549]  ? out_of_memory+0x974/0x1430
[  358.273725]  ? lock_downgrade+0x900/0x900
[  358.277873]  ? check_preemption_disabled+0x48/0x280
[  358.282893]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  358.287823]  ? kasan_check_read+0x11/0x20
[  358.291973]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  358.297260]  ? rcu_softirq_qs+0x20/0x20
[  358.301238]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.306774]  ? oom_evaluate_task+0x302/0x540
[  358.311188]  out_of_memory+0xa84/0x1430
[  358.315189]  ? oom_killer_disable+0x3a0/0x3a0
[  358.319699]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  358.324663]  ? __ww_mutex_check_waiters+0x160/0x160
[  358.329707]  __alloc_pages_slowpath+0x2354/0x2e10
[  358.334580]  ? warn_alloc+0x120/0x120
[  358.338384]  ? mark_held_locks+0x130/0x130
[  358.342628]  ? find_get_entry+0xaae/0x1120
[  358.346873]  ? filemap_map_pages+0x1a20/0x1a20
[  358.351459]  ? zap_class+0x640/0x640
[  358.355184]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.360724]  ? check_preemption_disabled+0x48/0x280
[  358.365765]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.371305]  ? should_fail+0x22d/0xd01
[  358.375196]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  358.380321]  ? zap_class+0x640/0x640
[  358.384064]  ? __lock_is_held+0xb5/0x140
[  358.388138]  ? mark_held_locks+0x130/0x130
[  358.392374]  ? lock_release+0xa00/0xa00
[  358.396363]  ? perf_trace_sched_process_exec+0x860/0x860
[  358.401818]  ? xa_load+0x2ba/0x460
[  358.405376]  ? lock_downgrade+0x900/0x900
[  358.409528]  ? __might_sleep+0x95/0x190
[  358.413509]  __alloc_pages_nodemask+0xa80/0xde0
[  358.418186]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  358.423217]  ? __page_cache_alloc+0x191/0x5c0
[  358.427725]  ? xa_load+0x2e1/0x460
[  358.431268]  ? xa_clear_mark+0x40/0x40
[  358.435160]  ? zap_class+0x640/0x640
[  358.438882]  ? zap_class+0x640/0x640
[  358.442597]  ? zap_class+0x640/0x640
[  358.446314]  ? __do_page_cache_readahead+0x663/0x810
[  358.451425]  ? find_held_lock+0x36/0x1c0
[  358.455491]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  358.461035]  alloc_pages_current+0x173/0x350
[  358.465463]  __page_cache_alloc+0x38c/0x5c0
[  358.469783]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  358.474707]  ? kasan_check_read+0x11/0x20
[  358.478853]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  358.484175]  ? generic_perform_write+0x6a0/0x6a0
[  358.488932]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.494480]  ? check_preemption_disabled+0x48/0x280
[  358.499501]  filemap_fault+0x1595/0x25f0
[  358.503593]  ? __lock_page_or_retry+0xa00/0xa00
[  358.508265]  ? mark_held_locks+0x130/0x130
[  358.512519]  ? filemap_map_pages+0xd6b/0x1a20
[  358.517030]  ? lock_downgrade+0x900/0x900
[  358.521186]  ? check_preemption_disabled+0x48/0x280
[  358.526236]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  358.531165]  ? kasan_check_read+0x11/0x20
[  358.535309]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  358.540582]  ? rcu_softirq_qs+0x20/0x20
[  358.544565]  ? filemap_map_pages+0xd92/0x1a20
[  358.549071]  ? find_get_entries_tag+0x1400/0x1400
[  358.553919]  ? debug_object_destroy+0x2b0/0x2b0
[  358.558593]  ? lock_pi_update_atomic+0x150/0x150
[  358.563346]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.568897]  ? lock_acquire+0x1ed/0x520
[  358.572873]  ? ext4_filemap_fault+0x7a/0xad
[  358.577205]  ? lock_release+0xa00/0xa00
[  358.581194]  ? perf_trace_sched_process_exec+0x860/0x860
[  358.586645]  ? print_usage_bug+0xc0/0xc0
[  358.590706]  ? print_usage_bug+0xc0/0xc0
[  358.594793]  ? down_read+0x8d/0x120
[  358.598412]  ? ext4_filemap_fault+0x7a/0xad
[  358.602755]  ? __down_interruptible+0x700/0x700
[  358.607443]  ext4_filemap_fault+0x82/0xad
[  358.611611]  __do_fault+0x100/0x6b0
[  358.615262]  ? pmd_devmap_trans_unstable+0x220/0x220
[  358.620366]  ? mark_held_locks+0x130/0x130
[  358.624602]  ? mark_held_locks+0x130/0x130
[  358.628854]  ? debug_smp_processor_id+0x1c/0x20
[  358.633535]  ? perf_trace_lock+0x14d/0x7a0
[  358.637780]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.643324]  __handle_mm_fault+0x3ea0/0x5be0
[  358.647738]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  358.652585]  ? lock_is_held_type+0x210/0x210
[  358.657004]  ? ksys_dup3+0x680/0x680
[  358.660743]  ? zap_class+0x640/0x640
[  358.664463]  ? zap_class+0x640/0x640
[  358.668179]  ? __x64_sys_futex+0x53e/0x6a0
[  358.672416]  ? find_held_lock+0x36/0x1c0
[  358.676500]  ? handle_mm_fault+0x42a/0xc70
[  358.680734]  ? lock_downgrade+0x900/0x900
[  358.684886]  ? check_preemption_disabled+0x48/0x280
[  358.689919]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  358.694848]  ? kasan_check_read+0x11/0x20
[  358.699028]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  358.704318]  ? rcu_softirq_qs+0x20/0x20
[  358.708295]  ? trace_hardirqs_off_caller+0x310/0x310
[  358.713395]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.718934]  ? check_preemption_disabled+0x48/0x280
[  358.723954]  handle_mm_fault+0x54f/0xc70
[  358.728694]  ? __handle_mm_fault+0x5be0/0x5be0
[  358.733274]  ? find_vma+0x34/0x190
[  358.736834]  __do_page_fault+0x5e8/0xe60
[  358.740892]  ? trace_hardirqs_off+0xb8/0x310
[  358.745331]  do_page_fault+0xf2/0x7e0
[  358.749136]  ? vmalloc_sync_all+0x30/0x30
[  358.753284]  ? error_entry+0x70/0xd0
[  358.757013]  ? trace_hardirqs_off_caller+0xbb/0x310
[  358.762043]  ? trace_hardirqs_on_caller+0xc0/0x310
[  358.766975]  ? syscall_return_slowpath+0x5e0/0x5e0
[  358.771921]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  358.776772]  ? trace_hardirqs_on_caller+0x310/0x310
[  358.781790]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  358.787245]  ? prepare_exit_to_usermode+0x291/0x3b0
[  358.792263]  ? page_fault+0x8/0x30
[  358.795808]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  358.801173]  ? page_fault+0x8/0x30
[  358.804715]  page_fault+0x1e/0x30
[  358.808168] RIP: 0033:0x40f9c0
[  358.811390] Code: Bad RIP value.
[  358.814754] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  358.820124] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  358.827391] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  358.834654] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  358.841921] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  358.849187] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  358.856477] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  358.856483] warn_alloc_show_mem: 1 callbacks suppressed
[  358.856490] Mem-Info:
[  358.863252] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  358.868639] active_anon:54833 inactive_anon:712 isolated_anon:0
[  358.868639]  active_file:11 inactive_file:12 isolated_file:0
[  358.868639]  unevictable:0 dirty:0 writeback:0 unstable:0
[  358.868639]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  358.868639]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  358.868639]  free:13768 free_pcp:742 free_cma:0
[  358.871019] Call Trace:
[  358.880415] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  358.913285]  dump_stack+0x244/0x39d
[  358.915840] 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
[  358.943417]  ? dump_stack_print_info.cold.1+0x20/0x20
[  358.947034] lowmem_reserve[]: 0 2818 6321 6321
[  358.973162]  warn_alloc.cold.116+0xb7/0x1bd
[  358.978331] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  358.982924]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  358.987235] lowmem_reserve[]: 0 0 3503 3503
[  359.015134]  ? lock_downgrade+0x900/0x900
[  359.019964] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  359.024292]  ? trace_hardirqs_off+0xb8/0x310
[  359.028442] lowmem_reserve[]: 0 0 0 0
[  359.057589]  ? trace_hardirqs_off+0xb8/0x310
[  359.061998] 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
[  359.065800]  __alloc_pages_slowpath+0x26e8/0x2e10
[  359.070185] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  359.083721]  ? warn_alloc+0x120/0x120
[  359.088526] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  359.104212]  ? print_usage_bug+0xc0/0xc0
[  359.107999] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  359.123332]  ? warn_alloc+0x120/0x120
[  359.127376] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  359.136198]  ? warn_alloc+0x120/0x120
[  359.139981] 782 total pagecache pages
[  359.148559]  ? print_usage_bug+0xc0/0xc0
[  359.152341] 0 pages in swap cache
[  359.156128]  ? print_usage_bug+0xc0/0xc0
[  359.160200] Swap cache stats: add 0, delete 0, find 0/0
[  359.163657]  ? __lock_acquire+0x62f/0x4c20
[  359.167690] Free swap  = 0kB
[  359.173044]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  359.177249] Total swap = 0kB
[  359.180270]  ? should_fail+0x22d/0xd01
[  359.185781] 1965979 pages RAM
[  359.188789]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  359.192672] 0 pages HighMem/MovableOnly
[  359.195767]  ? __lock_acquire+0x62f/0x4c20
[  359.200854] 342853 pages reserved
[  359.200862] 0 pages cma reserved
[  359.204829]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  359.209151] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  359.212528]  ? __lock_acquire+0x62f/0x4c20
[  359.212541]  ? should_fail+0x22d/0xd01
[  359.212554]  ? find_held_lock+0x36/0x1c0
[  359.212574]  ? mark_held_locks+0x130/0x130
[  359.216102] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  359.221014]  ? mark_held_locks+0x130/0x130
[  359.227485] syz-fuzzer cpuset=/ mems_allowed=0
[  359.231711]  ? zap_class+0x640/0x640
[  359.266581]  ? mark_held_locks+0xc7/0x130
[  359.270732]  ? do_raw_spin_unlock+0xa7/0x330
[  359.275144]  ? zap_class+0x640/0x640
[  359.278889]  ? print_usage_bug+0xc0/0xc0
[  359.282958]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.288507]  ? check_preemption_disabled+0x48/0x280
[  359.293550]  ? __lock_is_held+0xb5/0x140
[  359.297620]  __alloc_pages_nodemask+0xa80/0xde0
[  359.302290]  ? zap_class+0x640/0x640
[  359.306032]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  359.311107]  ? find_held_lock+0x36/0x1c0
[  359.315194]  ? ____cache_alloc_node+0x1c7/0x1e0
[  359.319883]  ? lock_downgrade+0x900/0x900
[  359.324042]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.329582]  cache_grow_begin+0xa5/0x8c0
[  359.333644]  ? do_raw_spin_unlock+0xa7/0x330
[  359.338063]  fallback_alloc+0x204/0x2e0
[  359.342057]  ____cache_alloc_node+0x1c7/0x1e0
[  359.346557]  kmem_cache_alloc_node+0xe3/0x730
[  359.351057]  ? ipv6_get_ifaddr+0x42e/0x620
[  359.355316]  __alloc_skb+0x119/0x770
[  359.359057]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  359.364340]  ? netdev_alloc_frag+0x1f0/0x1f0
[  359.368769]  ? lock_downgrade+0x900/0x900
[  359.372928]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.378492]  ? refcount_sub_and_test_checked+0x203/0x310
[  359.383975]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  359.389430]  ? addrconf_rs_timer+0x690/0x690
[  359.393852]  ndisc_alloc_skb+0x144/0x340
[  359.397929]  ndisc_send_rs+0x331/0x6e0
[  359.401832]  addrconf_rs_timer+0x314/0x690
[  359.406088]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.410354]  call_timer_fn+0x272/0x920
[  359.414256]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.418500]  ? process_timeout+0x40/0x40
[  359.422568]  ? __run_timers+0x7da/0xc70
[  359.426550]  ? _raw_spin_unlock_irq+0x27/0x80
[  359.431054]  ? _raw_spin_unlock_irq+0x27/0x80
[  359.435547]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.439799]  ? lockdep_hardirqs_on+0x296/0x5b0
[  359.444417]  ? trace_hardirqs_on+0xbd/0x310
[  359.448752]  ? kasan_check_read+0x11/0x20
[  359.452906]  ? __run_timers+0x7da/0xc70
[  359.456886]  ? trace_hardirqs_off_caller+0x310/0x310
[  359.461999]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.466263]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.470512]  __run_timers+0x7e5/0xc70
[  359.474333]  ? timer_fixup_init+0x70/0x70
[  359.478479]  ? _raw_spin_unlock_irq+0x27/0x80
[  359.483023]  ? _raw_spin_unlock_irq+0x27/0x80
[  359.487522]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  359.492136]  ? trace_hardirqs_on+0xbd/0x310
[  359.496470]  ? kasan_check_read+0x11/0x20
[  359.500619]  ? finish_task_switch+0x1f4/0x910
[  359.505114]  ? trace_hardirqs_off_caller+0x310/0x310
[  359.510215]  ? compat_start_thread+0x80/0x80
[  359.514638]  ? pvclock_read_flags+0x160/0x160
[  359.519140]  ? __switch_to_asm+0x34/0x70
[  359.523224]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.528759]  ? check_preemption_disabled+0x48/0x280
[  359.533796]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  359.539340]  ? rcu_pm_notify+0xc0/0xc0
[  359.543230]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.548802]  ? check_preemption_disabled+0x48/0x280
[  359.553826]  run_timer_softirq+0x52/0xb0
[  359.557887]  ? rcu_read_lock_sched_held+0x14f/0x180
[  359.562900]  __do_softirq+0x308/0xb7e
[  359.566703]  ? retint_kernel+0x2d/0x2d
[  359.570602]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  359.575744]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  359.581202]  ? trace_hardirqs_on+0x310/0x310
[  359.585611]  ? schedule+0x108/0x460
[  359.589235]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  359.594028]  ? trace_hardirqs_off+0xb8/0x310
[  359.598437]  ? smpboot_thread_fn+0x68b/0xa00
[  359.602846]  ? trace_hardirqs_on+0x310/0x310
[  359.607272]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  359.612867]  ? check_preemption_disabled+0x48/0x280
[  359.617885]  ? takeover_tasklets+0xa90/0xa90
[  359.622295]  run_ksoftirqd+0x5e/0x100
[  359.626098]  smpboot_thread_fn+0x68b/0xa00
[  359.630336]  ? sort_range+0x30/0x30
[  359.633962]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  359.639085]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  359.644620]  ? __kthread_parkme+0xfb/0x1a0
[  359.648858]  ? sort_range+0x30/0x30
[  359.652493]  kthread+0x35a/0x440
[  359.655867]  ? kthread_stop+0x900/0x900
[  359.659843]  ret_from_fork+0x3a/0x50
[  359.663572] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  359.663646] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  359.670500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  359.670505] Call Trace:
[  359.670512]  <IRQ>
[  359.670530]  dump_stack+0x244/0x39d
[  359.670548]  ? dump_stack_print_info.cold.1+0x20/0x20
[  359.677090] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  359.686391]  warn_alloc.cold.116+0xb7/0x1bd
[  359.688963] ksoftirqd/0 cpuset=/ mems_allowed=0
[  359.691103]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  359.723968]  ? lock_downgrade+0x900/0x900
[  359.728127]  ? trace_hardirqs_off+0xb8/0x310
[  359.732541]  ? trace_hardirqs_off+0xb8/0x310
[  359.736958]  __alloc_pages_slowpath+0x26e8/0x2e10
[  359.741832]  ? warn_alloc+0x120/0x120
[  359.745634]  ? find_held_lock+0x36/0x1c0
[  359.749693]  ? warn_alloc+0x120/0x120
[  359.753509]  ? warn_alloc+0x120/0x120
[  359.757306]  ? print_usage_bug+0xc0/0xc0
[  359.761367]  ? print_usage_bug+0xc0/0xc0
[  359.765427]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  359.770710]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  359.776273]  ? should_fail+0x22d/0xd01
[  359.780162]  ? __lock_acquire+0x62f/0x4c20
[  359.784402]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  359.789503]  ? __lock_acquire+0x62f/0x4c20
[  359.793739]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  359.798839]  ? __lock_acquire+0x62f/0x4c20
[  359.803076]  ? should_fail+0x22d/0xd01
[  359.806982]  ? mark_held_locks+0x130/0x130
[  359.811240]  ? mark_held_locks+0x130/0x130
[  359.815468]  ? __enqueue_entity+0x10d/0x1f0
[  359.819787]  ? zap_class+0x640/0x640
[  359.823496]  ? print_usage_bug+0xc0/0xc0
[  359.827549]  ? __lock_acquire+0x62f/0x4c20
[  359.831782]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.837333]  ? check_preemption_disabled+0x48/0x280
[  359.842379]  ? __lock_is_held+0xb5/0x140
[  359.846470]  __alloc_pages_nodemask+0xa80/0xde0
[  359.851134]  ? zap_class+0x640/0x640
[  359.854863]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  359.859942]  ? find_held_lock+0x36/0x1c0
[  359.864017]  ? ____cache_alloc_node+0x1c7/0x1e0
[  359.868686]  ? lock_downgrade+0x900/0x900
[  359.872865]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.878414]  cache_grow_begin+0xa5/0x8c0
[  359.882499]  ? do_raw_spin_unlock+0xa7/0x330
[  359.886936]  fallback_alloc+0x204/0x2e0
[  359.890915]  ____cache_alloc_node+0x1c7/0x1e0
[  359.895425]  kmem_cache_alloc_node+0xe3/0x730
[  359.899930]  ? ipv6_get_ifaddr+0x42e/0x620
[  359.904173]  __alloc_skb+0x119/0x770
[  359.907892]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  359.913166]  ? netdev_alloc_frag+0x1f0/0x1f0
[  359.917567]  ? lock_downgrade+0x900/0x900
[  359.921744]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.927349]  ? refcount_sub_and_test_checked+0x203/0x310
[  359.932819]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  359.938269]  ? addrconf_rs_timer+0x690/0x690
[  359.942685]  ndisc_alloc_skb+0x144/0x340
[  359.946748]  ndisc_send_rs+0x331/0x6e0
[  359.950642]  addrconf_rs_timer+0x314/0x690
[  359.954883]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.959122]  call_timer_fn+0x272/0x920
[  359.963025]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.967253]  ? process_timeout+0x40/0x40
[  359.971314]  ? mark_held_locks+0xc7/0x130
[  359.975457]  ? _raw_spin_unlock_irq+0x27/0x80
[  359.979947]  ? _raw_spin_unlock_irq+0x27/0x80
[  359.984433]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.988662]  ? lockdep_hardirqs_on+0x296/0x5b0
[  359.993240]  ? trace_hardirqs_on+0xbd/0x310
[  359.997573]  ? kasan_check_read+0x11/0x20
[  360.001716]  ? __run_timers+0x7da/0xc70
[  360.005689]  ? trace_hardirqs_off_caller+0x310/0x310
[  360.010838]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  360.015071]  __run_timers+0x7e5/0xc70
[  360.018880]  ? timer_fixup_init+0x70/0x70
[  360.023041]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  360.028061]  ? zap_class+0x640/0x640
[  360.031793]  ? print_usage_bug+0xc0/0xc0
[  360.035975]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  360.041174]  ? find_held_lock+0x36/0x1c0
[  360.045235]  ? zap_class+0x640/0x640
[  360.048953]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.054492]  ? check_preemption_disabled+0x48/0x280
[  360.059544]  ? __lock_is_held+0xb5/0x140
[  360.063605]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.069142]  ? check_preemption_disabled+0x48/0x280
[  360.074159]  run_timer_softirq+0x52/0xb0
[  360.078217]  ? rcu_read_lock_sched_held+0x14f/0x180
[  360.083232]  __do_softirq+0x308/0xb7e
[  360.087051]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  360.091549]  ? lock_downgrade+0x900/0x900
[  360.095700]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  360.100809]  ? pvclock_read_flags+0x160/0x160
[  360.105338]  ? lapic_next_event+0x5a/0x90
[  360.109487]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.115055]  ? kvm_clock_read+0x18/0x30
[  360.119039]  ? kvm_sched_clock_read+0x9/0x20
[  360.123447]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  360.129011]  ? check_preemption_disabled+0x48/0x280
[  360.134039]  irq_exit+0x17f/0x1c0
[  360.137503]  smp_apic_timer_interrupt+0x1cb/0x760
[  360.142359]  ? smp_call_function_single_interrupt+0x159/0x650
[  360.148245]  ? smp_call_function_single_interrupt+0x650/0x650
[  360.154129]  ? interrupt_entry+0xb5/0xc0
[  360.158189]  ? trace_hardirqs_off_caller+0xbb/0x310
[  360.163231]  ? trace_hardirqs_off_caller+0xbb/0x310
[  360.168249]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  360.173097]  ? trace_hardirqs_on_caller+0x310/0x310
[  360.178129]  ? trace_hardirqs_on_caller+0x310/0x310
[  360.183148]  ? task_prio+0x50/0x50
[  360.186692]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.192230]  ? check_preemption_disabled+0x48/0x280
[  360.197254]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  360.202108]  apic_timer_interrupt+0xf/0x20
[  360.206333]  </IRQ>
[  360.208576] RIP: 0010:dump_stack+0x358/0x39d
[  360.212986] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  360.231895] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  360.239603] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  360.246885] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  360.254162] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  360.261427] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  360.268693] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  360.275979]  ? dump_stack+0x34f/0x39d
[  360.279808]  ? dump_stack_print_info.cold.1+0x20/0x20
[  360.285021]  ? mark_held_locks+0x130/0x130
[  360.289260]  ? mark_held_locks+0x130/0x130
[  360.293542]  dump_header+0x27b/0xf72
[  360.297267]  ? pagefault_out_of_memory+0x197/0x197
[  360.302207]  ? __lock_acquire+0x62f/0x4c20
[  360.306467]  ? percpu_ref_get_many+0x240/0x240
[  360.311055]  ? print_usage_bug+0xc0/0xc0
[  360.315136]  ? zap_class+0x640/0x640
[  360.318855]  ? print_usage_bug+0xc0/0xc0
[  360.322917]  ? print_usage_bug+0xc0/0xc0
[  360.326984]  ? zap_class+0x640/0x640
[  360.330711]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.336252]  ? find_held_lock+0x36/0x1c0
[  360.340320]  ? mark_held_locks+0xc7/0x130
[  360.344469]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  360.349572]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  360.354676]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  360.359264]  ? trace_hardirqs_on+0xbd/0x310
[  360.363592]  ? kasan_check_read+0x11/0x20
[  360.367758]  ? ___ratelimit+0x3b4/0x672
[  360.371771]  ? trace_hardirqs_off_caller+0x310/0x310
[  360.376878]  ? trace_hardirqs_on+0x310/0x310
[  360.381287]  ? lock_downgrade+0x900/0x900
[  360.385603]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  360.390719]  ? ___ratelimit+0x3b9/0x672
[  360.394701]  ? idr_get_free+0xf70/0xf70
[  360.398673]  ? find_held_lock+0x36/0x1c0
[  360.402757]  oom_kill_process.cold.27+0x10/0x903
[  360.407519]  ? zap_class+0x640/0x640
[  360.411251]  ? check_preemption_disabled+0x48/0x280
[  360.416275]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  360.421210]  ? kasan_check_read+0x11/0x20
[  360.425374]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.430663]  ? oom_evaluate_task+0x540/0x540
[  360.435077]  ? find_held_lock+0x36/0x1c0
[  360.439147]  ? out_of_memory+0x974/0x1430
[  360.443299]  ? lock_downgrade+0x900/0x900
[  360.447479]  ? check_preemption_disabled+0x48/0x280
[  360.452499]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  360.457448]  ? kasan_check_read+0x11/0x20
[  360.461604]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.466888]  ? rcu_softirq_qs+0x20/0x20
[  360.470898]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  360.476476]  ? oom_evaluate_task+0x302/0x540
[  360.480887]  out_of_memory+0xa84/0x1430
[  360.484868]  ? oom_killer_disable+0x3a0/0x3a0
[  360.489361]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  360.494294]  ? __ww_mutex_check_waiters+0x160/0x160
[  360.499336]  __alloc_pages_slowpath+0x2354/0x2e10
[  360.504207]  ? warn_alloc+0x120/0x120
[  360.508013]  ? mark_held_locks+0x130/0x130
[  360.512262]  ? find_get_entry+0xaae/0x1120
[  360.516512]  ? filemap_map_pages+0x1a20/0x1a20
[  360.521097]  ? zap_class+0x640/0x640
[  360.524825]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.530390]  ? check_preemption_disabled+0x48/0x280
[  360.535401]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  360.540933]  ? should_fail+0x22d/0xd01
[  360.544819]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  360.549921]  ? zap_class+0x640/0x640
[  360.553666]  ? __lock_is_held+0xb5/0x140
[  360.557734]  ? mark_held_locks+0x130/0x130
[  360.561975]  ? lock_release+0xa00/0xa00
[  360.565954]  ? perf_trace_sched_process_exec+0x860/0x860
[  360.571402]  ? xa_load+0x2ba/0x460
[  360.574942]  ? lock_downgrade+0x900/0x900
[  360.579090]  ? __might_sleep+0x95/0x190
[  360.583082]  __alloc_pages_nodemask+0xa80/0xde0
[  360.587765]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  360.592785]  ? __page_cache_alloc+0x191/0x5c0
[  360.597293]  ? xa_load+0x2e1/0x460
[  360.600837]  ? xa_clear_mark+0x40/0x40
[  360.604724]  ? zap_class+0x640/0x640
[  360.608446]  ? zap_class+0x640/0x640
[  360.612170]  ? zap_class+0x640/0x640
[  360.615879]  ? __do_page_cache_readahead+0x663/0x810
[  360.620983]  ? find_held_lock+0x36/0x1c0
[  360.625079]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  360.630623]  alloc_pages_current+0x173/0x350
[  360.635035]  __page_cache_alloc+0x38c/0x5c0
[  360.639353]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  360.644281]  ? kasan_check_read+0x11/0x20
[  360.648426]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.653707]  ? generic_perform_write+0x6a0/0x6a0
[  360.658483]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  360.664040]  ? check_preemption_disabled+0x48/0x280
[  360.669082]  filemap_fault+0x1595/0x25f0
[  360.673160]  ? __lock_page_or_retry+0xa00/0xa00
[  360.677834]  ? mark_held_locks+0x130/0x130
[  360.682075]  ? filemap_map_pages+0xd6b/0x1a20
[  360.686686]  ? lock_downgrade+0x900/0x900
[  360.690828]  ? check_preemption_disabled+0x48/0x280
[  360.695841]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  360.700770]  ? kasan_check_read+0x11/0x20
[  360.704914]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.710186]  ? rcu_softirq_qs+0x20/0x20
[  360.714196]  ? filemap_map_pages+0xd92/0x1a20
[  360.718702]  ? find_get_entries_tag+0x1400/0x1400
[  360.723541]  ? debug_object_destroy+0x2b0/0x2b0
[  360.728207]  ? lock_pi_update_atomic+0x150/0x150
[  360.732954]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.738524]  ? lock_acquire+0x1ed/0x520
[  360.742523]  ? ext4_filemap_fault+0x7a/0xad
[  360.746863]  ? lock_release+0xa00/0xa00
[  360.750847]  ? perf_trace_sched_process_exec+0x860/0x860
[  360.756324]  ? print_usage_bug+0xc0/0xc0
[  360.760400]  ? print_usage_bug+0xc0/0xc0
[  360.764495]  ? down_read+0x8d/0x120
[  360.768117]  ? ext4_filemap_fault+0x7a/0xad
[  360.772437]  ? __down_interruptible+0x700/0x700
[  360.777113]  ext4_filemap_fault+0x82/0xad
[  360.781262]  __do_fault+0x100/0x6b0
[  360.784934]  ? pmd_devmap_trans_unstable+0x220/0x220
[  360.790040]  ? mark_held_locks+0x130/0x130
[  360.794271]  ? mark_held_locks+0x130/0x130
[  360.799029]  ? debug_smp_processor_id+0x1c/0x20
[  360.803703]  ? perf_trace_lock+0x14d/0x7a0
[  360.808434]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  360.814009]  __handle_mm_fault+0x3ea0/0x5be0
[  360.818456]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  360.823540]  ? lock_is_held_type+0x210/0x210
[  360.827951]  ? ksys_dup3+0x680/0x680
[  360.831673]  ? zap_class+0x640/0x640
[  360.835404]  ? zap_class+0x640/0x640
[  360.839117]  ? __x64_sys_futex+0x53e/0x6a0
[  360.843357]  ? find_held_lock+0x36/0x1c0
[  360.847429]  ? handle_mm_fault+0x42a/0xc70
[  360.851662]  ? lock_downgrade+0x900/0x900
[  360.855803]  ? check_preemption_disabled+0x48/0x280
[  360.860818]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  360.865769]  ? kasan_check_read+0x11/0x20
[  360.869915]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.875202]  ? rcu_softirq_qs+0x20/0x20
[  360.879175]  ? trace_hardirqs_off_caller+0x310/0x310
[  360.884276]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  360.889813]  ? check_preemption_disabled+0x48/0x280
[  360.894848]  handle_mm_fault+0x54f/0xc70
[  360.898914]  ? __handle_mm_fault+0x5be0/0x5be0
[  360.903532]  ? find_vma+0x34/0x190
[  360.907079]  __do_page_fault+0x5e8/0xe60
[  360.911174]  ? trace_hardirqs_off+0xb8/0x310
[  360.915590]  do_page_fault+0xf2/0x7e0
[  360.919392]  ? vmalloc_sync_all+0x30/0x30
[  360.923542]  ? error_entry+0x70/0xd0
[  360.927256]  ? trace_hardirqs_off_caller+0xbb/0x310
[  360.932288]  ? trace_hardirqs_on_caller+0xc0/0x310
[  360.937216]  ? syscall_return_slowpath+0x5e0/0x5e0
[  360.942147]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  360.946999]  ? trace_hardirqs_on_caller+0x310/0x310
[  360.952037]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  360.957533]  ? prepare_exit_to_usermode+0x291/0x3b0
[  360.962581]  ? page_fault+0x8/0x30
[  360.966125]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  360.970968]  ? page_fault+0x8/0x30
[  360.974515]  page_fault+0x1e/0x30
[  360.977964] RIP: 0033:0x40f9c0
[  360.981200] Code: Bad RIP value.
[  360.984575] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  360.989948] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  360.997234] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  361.004504] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  361.011782] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  361.019049] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  361.026336] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  361.026342] warn_alloc_show_mem: 1 callbacks suppressed
[  361.026349] Mem-Info:
[  361.033100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  361.038465] active_anon:54833 inactive_anon:712 isolated_anon:0
[  361.038465]  active_file:11 inactive_file:12 isolated_file:0
[  361.038465]  unevictable:0 dirty:0 writeback:0 unstable:0
[  361.038465]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  361.038465]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  361.038465]  free:13768 free_pcp:742 free_cma:0
[  361.040837] Call Trace:
[  361.050219] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  361.083067]  dump_stack+0x244/0x39d
[  361.085641] 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
[  361.113214]  ? dump_stack_print_info.cold.1+0x20/0x20
[  361.116811] lowmem_reserve[]: 0 2818 6321 6321
[  361.142917]  warn_alloc.cold.116+0xb7/0x1bd
[  361.148076] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  361.152649]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  361.156940] lowmem_reserve[]: 0 0 3503 3503
[  361.184689]  ? lock_downgrade+0x900/0x900
[  361.189505] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  361.193821]  ? trace_hardirqs_off+0xb8/0x310
[  361.197942] lowmem_reserve[]: 0 0 0 0
[  361.227091]  ? trace_hardirqs_off+0xb8/0x310
[  361.231471] 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
[  361.235286]  __alloc_pages_slowpath+0x26e8/0x2e10
[  361.239661] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  361.253200]  ? warn_alloc+0x120/0x120
[  361.258007] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  361.273693]  ? print_usage_bug+0xc0/0xc0
[  361.277477] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  361.292823]  ? warn_alloc+0x120/0x120
[  361.296867] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  361.305690]  ? warn_alloc+0x120/0x120
[  361.309467] 782 total pagecache pages
[  361.318036]  ? print_usage_bug+0xc0/0xc0
[  361.321822] 0 pages in swap cache
[  361.325606]  ? print_usage_bug+0xc0/0xc0
[  361.329643] Swap cache stats: add 0, delete 0, find 0/0
[  361.333086]  ? __lock_acquire+0x62f/0x4c20
[  361.337125] Free swap  = 0kB
[  361.342482]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.346702] Total swap = 0kB
[  361.349731]  ? should_fail+0x22d/0xd01
[  361.355244] 1965979 pages RAM
[  361.358277]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  361.362133] 0 pages HighMem/MovableOnly
[  361.365228]  ? __lock_acquire+0x62f/0x4c20
[  361.370323] 342853 pages reserved
[  361.374295]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  361.378518] 0 pages cma reserved
[  361.381960]  ? __lock_acquire+0x62f/0x4c20
[  361.387095] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  361.390404]  ? should_fail+0x22d/0xd01
[  361.390419]  ? find_held_lock+0x36/0x1c0
[  361.390455]  ? mark_held_locks+0x130/0x130
[  361.394732] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  361.401162]  ? mark_held_locks+0x130/0x130
[  361.405055] syz-fuzzer cpuset=/ mems_allowed=0
[  361.409110]  ? zap_class+0x640/0x640
[  361.436121]  ? zap_class+0x640/0x640
[  361.439849]  ? print_usage_bug+0xc0/0xc0
[  361.443920]  ? do_raw_spin_unlock+0xa7/0x330
[  361.448332]  ? zap_class+0x640/0x640
[  361.452046]  ? print_usage_bug+0xc0/0xc0
[  361.456101]  ? wq_watchdog_touch+0x9c/0xfe
[  361.460368]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.465910]  ? check_preemption_disabled+0x48/0x280
[  361.470931]  ? __lock_is_held+0xb5/0x140
[  361.475005]  __alloc_pages_nodemask+0xa80/0xde0
[  361.479671]  ? zap_class+0x640/0x640
[  361.483409]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  361.488440]  ? find_held_lock+0x36/0x1c0
[  361.492524]  ? ____cache_alloc_node+0x1c7/0x1e0
[  361.497206]  ? lock_downgrade+0x900/0x900
[  361.501363]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.506908]  cache_grow_begin+0xa5/0x8c0
[  361.511004]  ? do_raw_spin_unlock+0xa7/0x330
[  361.515441]  fallback_alloc+0x204/0x2e0
[  361.519427]  ____cache_alloc_node+0x1c7/0x1e0
[  361.523927]  kmem_cache_alloc_node+0xe3/0x730
[  361.528422]  ? ipv6_get_ifaddr+0x42e/0x620
[  361.532664]  __alloc_skb+0x119/0x770
[  361.536372]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  361.541646]  ? netdev_alloc_frag+0x1f0/0x1f0
[  361.546052]  ? lock_downgrade+0x900/0x900
[  361.550219]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.555757]  ? refcount_sub_and_test_checked+0x203/0x310
[  361.561209]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  361.566661]  ? addrconf_rs_timer+0x690/0x690
[  361.571078]  ndisc_alloc_skb+0x144/0x340
[  361.575143]  ndisc_send_rs+0x331/0x6e0
[  361.579033]  addrconf_rs_timer+0x314/0x690
[  361.583287]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  361.587584]  call_timer_fn+0x272/0x920
[  361.591481]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  361.595714]  ? process_timeout+0x40/0x40
[  361.599787]  ? __run_timers+0x7da/0xc70
[  361.603761]  ? _raw_spin_unlock_irq+0x27/0x80
[  361.608253]  ? _raw_spin_unlock_irq+0x27/0x80
[  361.612750]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  361.616978]  ? lockdep_hardirqs_on+0x296/0x5b0
[  361.621575]  ? trace_hardirqs_on+0xbd/0x310
[  361.625893]  ? kasan_check_read+0x11/0x20
[  361.630035]  ? __run_timers+0x7da/0xc70
[  361.634026]  ? trace_hardirqs_off_caller+0x310/0x310
[  361.639139]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  361.643370]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  361.647598]  __run_timers+0x7e5/0xc70
[  361.651409]  ? timer_fixup_init+0x70/0x70
[  361.655561]  ? _raw_spin_unlock_irq+0x27/0x80
[  361.660066]  ? _raw_spin_unlock_irq+0x27/0x80
[  361.664564]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  361.669393]  ? trace_hardirqs_on+0xbd/0x310
[  361.673714]  ? kasan_check_read+0x11/0x20
[  361.677862]  ? finish_task_switch+0x1f4/0x910
[  361.682384]  ? trace_hardirqs_off_caller+0x310/0x310
[  361.687482]  ? compat_start_thread+0x80/0x80
[  361.691901]  ? pvclock_read_flags+0x160/0x160
[  361.696387]  ? __switch_to_asm+0x34/0x70
[  361.700455]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.706041]  ? check_preemption_disabled+0x48/0x280
[  361.711092]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  361.716623]  ? rcu_pm_notify+0xc0/0xc0
[  361.720502]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.726031]  ? check_preemption_disabled+0x48/0x280
[  361.731056]  run_timer_softirq+0x52/0xb0
[  361.735124]  ? rcu_read_lock_sched_held+0x14f/0x180
[  361.740133]  __do_softirq+0x308/0xb7e
[  361.743966]  ? retint_kernel+0x2d/0x2d
[  361.747956]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  361.753083]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  361.758544]  ? trace_hardirqs_on+0x310/0x310
[  361.762947]  ? schedule+0x108/0x460
[  361.766580]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  361.771377]  ? trace_hardirqs_off+0xb8/0x310
[  361.775787]  ? smpboot_thread_fn+0x68b/0xa00
[  361.780198]  ? trace_hardirqs_on+0x310/0x310
[  361.784614]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.790145]  ? check_preemption_disabled+0x48/0x280
[  361.795173]  ? takeover_tasklets+0xa90/0xa90
[  361.799594]  run_ksoftirqd+0x5e/0x100
[  361.803403]  smpboot_thread_fn+0x68b/0xa00
[  361.807654]  ? sort_range+0x30/0x30
[  361.811285]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  361.816399]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.822209]  ? __kthread_parkme+0xfb/0x1a0
[  361.826534]  ? sort_range+0x30/0x30
[  361.830163]  kthread+0x35a/0x440
[  361.833529]  ? kthread_stop+0x900/0x900
[  361.837501]  ret_from_fork+0x3a/0x50
[  361.841230] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  361.841302] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  361.848152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  361.848160] Call Trace:
[  361.854715] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  361.863975]  <IRQ>
[  361.866584] ksoftirqd/0 cpuset=/ mems_allowed=0
[  361.876902]  dump_stack+0x244/0x39d
[  361.887327]  ? dump_stack_print_info.cold.1+0x20/0x20
[  361.892542]  warn_alloc.cold.116+0xb7/0x1bd
[  361.896889]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  361.901727]  ? lock_downgrade+0x900/0x900
[  361.905872]  ? trace_hardirqs_off+0xb8/0x310
[  361.910284]  ? trace_hardirqs_off+0xb8/0x310
[  361.914696]  __alloc_pages_slowpath+0x26e8/0x2e10
[  361.919591]  ? warn_alloc+0x120/0x120
[  361.923437]  ? print_usage_bug+0xc0/0xc0
[  361.927497]  ? warn_alloc+0x120/0x120
[  361.931314]  ? warn_alloc+0x120/0x120
[  361.935113]  ? print_usage_bug+0xc0/0xc0
[  361.939196]  ? print_usage_bug+0xc0/0xc0
[  361.943262]  ? __lock_acquire+0x62f/0x4c20
[  361.947529]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.953067]  ? should_fail+0x22d/0xd01
[  361.957012]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  361.962119]  ? __lock_acquire+0x62f/0x4c20
[  361.966375]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  361.971523]  ? __lock_acquire+0x62f/0x4c20
[  361.975793]  ? should_fail+0x22d/0xd01
[  361.979703]  ? find_held_lock+0x36/0x1c0
[  361.983790]  ? mark_held_locks+0x130/0x130
[  361.988027]  ? mark_held_locks+0x130/0x130
[  361.992279]  ? zap_class+0x640/0x640
[  361.996036]  ? zap_class+0x640/0x640
[  361.999774]  ? print_usage_bug+0xc0/0xc0
[  362.003835]  ? do_raw_spin_unlock+0xa7/0x330
[  362.008247]  ? zap_class+0x640/0x640
[  362.011967]  ? print_usage_bug+0xc0/0xc0
[  362.016037]  ? wq_watchdog_touch+0x9c/0xfe
[  362.020279]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.025829]  ? check_preemption_disabled+0x48/0x280
[  362.030854]  ? __lock_is_held+0xb5/0x140
[  362.034933]  __alloc_pages_nodemask+0xa80/0xde0
[  362.039628]  ? zap_class+0x640/0x640
[  362.043353]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  362.048381]  ? find_held_lock+0x36/0x1c0
[  362.052467]  ? ____cache_alloc_node+0x1c7/0x1e0
[  362.057177]  ? lock_downgrade+0x900/0x900
[  362.061349]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.066909]  cache_grow_begin+0xa5/0x8c0
[  362.071001]  ? do_raw_spin_unlock+0xa7/0x330
[  362.075420]  fallback_alloc+0x204/0x2e0
[  362.079409]  ____cache_alloc_node+0x1c7/0x1e0
[  362.083924]  kmem_cache_alloc_node+0xe3/0x730
[  362.088423]  ? ipv6_get_ifaddr+0x42e/0x620
[  362.092668]  __alloc_skb+0x119/0x770
[  362.096385]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.101675]  ? netdev_alloc_frag+0x1f0/0x1f0
[  362.106105]  ? lock_downgrade+0x900/0x900
[  362.110263]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.115821]  ? refcount_sub_and_test_checked+0x203/0x310
[  362.121278]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  362.126729]  ? addrconf_rs_timer+0x690/0x690
[  362.131159]  ndisc_alloc_skb+0x144/0x340
[  362.135225]  ndisc_send_rs+0x331/0x6e0
[  362.139120]  addrconf_rs_timer+0x314/0x690
[  362.143379]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.147633]  call_timer_fn+0x272/0x920
[  362.151521]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.155758]  ? process_timeout+0x40/0x40
[  362.159847]  ? mark_held_locks+0xc7/0x130
[  362.164014]  ? _raw_spin_unlock_irq+0x27/0x80
[  362.168512]  ? _raw_spin_unlock_irq+0x27/0x80
[  362.173012]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.177246]  ? lockdep_hardirqs_on+0x296/0x5b0
[  362.181859]  ? trace_hardirqs_on+0xbd/0x310
[  362.186193]  ? kasan_check_read+0x11/0x20
[  362.190339]  ? __run_timers+0x7da/0xc70
[  362.194314]  ? trace_hardirqs_off_caller+0x310/0x310
[  362.199427]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.203666]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.207898]  __run_timers+0x7e5/0xc70
[  362.211722]  ? timer_fixup_init+0x70/0x70
[  362.215872]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  362.220891]  ? zap_class+0x640/0x640
[  362.224626]  ? print_usage_bug+0xc0/0xc0
[  362.228690]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  362.233887]  ? find_held_lock+0x36/0x1c0
[  362.237950]  ? zap_class+0x640/0x640
[  362.241683]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.247221]  ? check_preemption_disabled+0x48/0x280
[  362.252281]  ? __lock_is_held+0xb5/0x140
[  362.256345]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.261886]  ? check_preemption_disabled+0x48/0x280
[  362.266928]  run_timer_softirq+0x52/0xb0
[  362.271005]  ? rcu_read_lock_sched_held+0x14f/0x180
[  362.276037]  __do_softirq+0x308/0xb7e
[  362.279859]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  362.284368]  ? lock_downgrade+0x900/0x900
[  362.288520]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  362.293642]  ? pvclock_read_flags+0x160/0x160
[  362.298139]  ? lapic_next_event+0x5a/0x90
[  362.302287]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.307855]  ? kvm_clock_read+0x18/0x30
[  362.311846]  ? kvm_sched_clock_read+0x9/0x20
[  362.316258]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.321804]  ? check_preemption_disabled+0x48/0x280
[  362.326830]  irq_exit+0x17f/0x1c0
[  362.330296]  smp_apic_timer_interrupt+0x1cb/0x760
[  362.335138]  ? smp_call_function_single_interrupt+0x159/0x650
[  362.341030]  ? smp_call_function_single_interrupt+0x650/0x650
[  362.346968]  ? interrupt_entry+0xb5/0xc0
[  362.351042]  ? trace_hardirqs_off_caller+0xbb/0x310
[  362.356068]  ? trace_hardirqs_off_caller+0xbb/0x310
[  362.361102]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  362.365962]  ? trace_hardirqs_on_caller+0x310/0x310
[  362.371005]  ? trace_hardirqs_on_caller+0x310/0x310
[  362.376026]  ? task_prio+0x50/0x50
[  362.379574]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.385117]  ? check_preemption_disabled+0x48/0x280
[  362.390136]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  362.395003]  apic_timer_interrupt+0xf/0x20
[  362.399229]  </IRQ>
[  362.401478] RIP: 0010:dump_stack+0x358/0x39d
[  362.405885] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  362.424783] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  362.432488] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  362.439759] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  362.447030] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  362.454292] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  362.461562] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  362.468858]  ? dump_stack+0x34f/0x39d
[  362.472671]  ? dump_stack_print_info.cold.1+0x20/0x20
[  362.477861]  ? mark_held_locks+0x130/0x130
[  362.482099]  ? mark_held_locks+0x130/0x130
[  362.486338]  dump_header+0x27b/0xf72
[  362.490068]  ? pagefault_out_of_memory+0x197/0x197
[  362.495007]  ? __lock_acquire+0x62f/0x4c20
[  362.499243]  ? percpu_ref_get_many+0x240/0x240
[  362.503830]  ? print_usage_bug+0xc0/0xc0
[  362.507889]  ? zap_class+0x640/0x640
[  362.511634]  ? print_usage_bug+0xc0/0xc0
[  362.515712]  ? print_usage_bug+0xc0/0xc0
[  362.519804]  ? zap_class+0x640/0x640
[  362.523550]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.529106]  ? find_held_lock+0x36/0x1c0
[  362.533172]  ? mark_held_locks+0xc7/0x130
[  362.537335]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  362.542463]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  362.547562]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  362.552143]  ? trace_hardirqs_on+0xbd/0x310
[  362.556467]  ? kasan_check_read+0x11/0x20
[  362.560634]  ? ___ratelimit+0x3b4/0x672
[  362.564608]  ? trace_hardirqs_off_caller+0x310/0x310
[  362.569710]  ? trace_hardirqs_on+0x310/0x310
[  362.574115]  ? lock_downgrade+0x900/0x900
[  362.578263]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  362.583381]  ? ___ratelimit+0x3b9/0x672
[  362.587365]  ? idr_get_free+0xf70/0xf70
[  362.591355]  ? find_held_lock+0x36/0x1c0
[  362.595421]  oom_kill_process.cold.27+0x10/0x903
[  362.600201]  ? zap_class+0x640/0x640
[  362.603913]  ? check_preemption_disabled+0x48/0x280
[  362.608932]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  362.613860]  ? kasan_check_read+0x11/0x20
[  362.618018]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.623313]  ? oom_evaluate_task+0x540/0x540
[  362.627725]  ? find_held_lock+0x36/0x1c0
[  362.631794]  ? out_of_memory+0x974/0x1430
[  362.635944]  ? lock_downgrade+0x900/0x900
[  362.640091]  ? check_preemption_disabled+0x48/0x280
[  362.645111]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  362.650049]  ? kasan_check_read+0x11/0x20
[  362.654218]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.659493]  ? rcu_softirq_qs+0x20/0x20
[  362.663484]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.669032]  ? oom_evaluate_task+0x302/0x540
[  362.673444]  out_of_memory+0xa84/0x1430
[  362.677426]  ? oom_killer_disable+0x3a0/0x3a0
[  362.681933]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  362.686867]  ? __ww_mutex_check_waiters+0x160/0x160
[  362.691891]  __alloc_pages_slowpath+0x2354/0x2e10
[  362.696758]  ? warn_alloc+0x120/0x120
[  362.700562]  ? mark_held_locks+0x130/0x130
[  362.704810]  ? find_get_entry+0xaae/0x1120
[  362.709054]  ? filemap_map_pages+0x1a20/0x1a20
[  362.713653]  ? zap_class+0x640/0x640
[  362.717366]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.722912]  ? check_preemption_disabled+0x48/0x280
[  362.727936]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.733465]  ? should_fail+0x22d/0xd01
[  362.737364]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  362.742592]  ? zap_class+0x640/0x640
[  362.746328]  ? __lock_is_held+0xb5/0x140
[  362.750392]  ? mark_held_locks+0x130/0x130
[  362.754654]  ? lock_release+0xa00/0xa00
[  362.758636]  ? perf_trace_sched_process_exec+0x860/0x860
[  362.764079]  ? xa_load+0x2ba/0x460
[  362.767632]  ? lock_downgrade+0x900/0x900
[  362.771810]  ? __might_sleep+0x95/0x190
[  362.775797]  __alloc_pages_nodemask+0xa80/0xde0
[  362.780465]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  362.785553]  ? __page_cache_alloc+0x191/0x5c0
[  362.790045]  ? xa_load+0x2e1/0x460
[  362.793598]  ? xa_clear_mark+0x40/0x40
[  362.797504]  ? zap_class+0x640/0x640
[  362.801728]  ? zap_class+0x640/0x640
[  362.805447]  ? zap_class+0x640/0x640
[  362.809165]  ? __do_page_cache_readahead+0x663/0x810
[  362.814286]  ? find_held_lock+0x36/0x1c0
[  362.818345]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  362.823896]  alloc_pages_current+0x173/0x350
[  362.828303]  __page_cache_alloc+0x38c/0x5c0
[  362.832661]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  362.837594]  ? kasan_check_read+0x11/0x20
[  362.841734]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.847036]  ? generic_perform_write+0x6a0/0x6a0
[  362.851797]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.857337]  ? check_preemption_disabled+0x48/0x280
[  362.862371]  filemap_fault+0x1595/0x25f0
[  362.866445]  ? __lock_page_or_retry+0xa00/0xa00
[  362.871120]  ? mark_held_locks+0x130/0x130
[  362.875364]  ? filemap_map_pages+0xd6b/0x1a20
[  362.879862]  ? lock_downgrade+0x900/0x900
[  362.884028]  ? check_preemption_disabled+0x48/0x280
[  362.889049]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  362.893978]  ? kasan_check_read+0x11/0x20
[  362.898137]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.903423]  ? rcu_softirq_qs+0x20/0x20
[  362.907422]  ? filemap_map_pages+0xd92/0x1a20
[  362.911922]  ? find_get_entries_tag+0x1400/0x1400
[  362.916759]  ? debug_object_destroy+0x2b0/0x2b0
[  362.921476]  ? lock_pi_update_atomic+0x150/0x150
[  362.926244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.931807]  ? lock_acquire+0x1ed/0x520
[  362.935783]  ? ext4_filemap_fault+0x7a/0xad
[  362.940115]  ? lock_release+0xa00/0xa00
[  362.944116]  ? perf_trace_sched_process_exec+0x860/0x860
[  362.949568]  ? print_usage_bug+0xc0/0xc0
[  362.953629]  ? print_usage_bug+0xc0/0xc0
[  362.957699]  ? down_read+0x8d/0x120
[  362.961319]  ? ext4_filemap_fault+0x7a/0xad
[  362.965638]  ? __down_interruptible+0x700/0x700
[  362.970315]  ext4_filemap_fault+0x82/0xad
[  362.974464]  __do_fault+0x100/0x6b0
[  362.978112]  ? pmd_devmap_trans_unstable+0x220/0x220
[  362.983246]  ? mark_held_locks+0x130/0x130
[  362.987497]  ? mark_held_locks+0x130/0x130
[  362.991732]  ? debug_smp_processor_id+0x1c/0x20
[  362.996409]  ? perf_trace_lock+0x14d/0x7a0
[  363.000652]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.006207]  __handle_mm_fault+0x3ea0/0x5be0
[  363.010622]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  363.015467]  ? lock_is_held_type+0x210/0x210
[  363.019877]  ? ksys_dup3+0x680/0x680
[  363.023616]  ? zap_class+0x640/0x640
[  363.027348]  ? zap_class+0x640/0x640
[  363.031080]  ? __x64_sys_futex+0x53e/0x6a0
[  363.035321]  ? find_held_lock+0x36/0x1c0
[  363.039392]  ? handle_mm_fault+0x42a/0xc70
[  363.043623]  ? lock_downgrade+0x900/0x900
[  363.047813]  ? check_preemption_disabled+0x48/0x280
[  363.052842]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  363.057774]  ? kasan_check_read+0x11/0x20
[  363.061916]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  363.067186]  ? rcu_softirq_qs+0x20/0x20
[  363.071162]  ? trace_hardirqs_off_caller+0x310/0x310
[  363.076282]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.081822]  ? check_preemption_disabled+0x48/0x280
[  363.086844]  handle_mm_fault+0x54f/0xc70
[  363.090922]  ? __handle_mm_fault+0x5be0/0x5be0
[  363.095503]  ? find_vma+0x34/0x190
[  363.099069]  __do_page_fault+0x5e8/0xe60
[  363.103169]  ? trace_hardirqs_off+0xb8/0x310
[  363.107599]  do_page_fault+0xf2/0x7e0
[  363.111401]  ? vmalloc_sync_all+0x30/0x30
[  363.115558]  ? error_entry+0x70/0xd0
[  363.119270]  ? trace_hardirqs_off_caller+0xbb/0x310
[  363.124280]  ? trace_hardirqs_on_caller+0xc0/0x310
[  363.129295]  ? syscall_return_slowpath+0x5e0/0x5e0
[  363.134218]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  363.139070]  ? trace_hardirqs_on_caller+0x310/0x310
[  363.144080]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  363.149544]  ? prepare_exit_to_usermode+0x291/0x3b0
[  363.154552]  ? page_fault+0x8/0x30
[  363.158104]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  363.162941]  ? page_fault+0x8/0x30
[  363.166478]  page_fault+0x1e/0x30
[  363.169927] RIP: 0033:0x40f9c0
[  363.173159] Code: Bad RIP value.
[  363.176528] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  363.181889] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  363.189150] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  363.196412] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  363.203676] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  363.210965] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  363.218268] warn_alloc_show_mem: 1 callbacks suppressed
[  363.218280] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  363.218281] Mem-Info:
[  363.218311] active_anon:54833 inactive_anon:712 isolated_anon:0
[  363.218311]  active_file:11 inactive_file:12 isolated_file:0
[  363.218311]  unevictable:0 dirty:0 writeback:0 unstable:0
[  363.218311]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  363.218311]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  363.218311]  free:13768 free_pcp:742 free_cma:0
[  363.223653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  363.230406] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  363.232798] Call Trace:
[  363.265666] 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
[  363.275021]  dump_stack+0x244/0x39d
[  363.302581] lowmem_reserve[]: 0 2818 6321 6321
[  363.305157]  ? dump_stack_print_info.cold.1+0x20/0x20
[  363.331236] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  363.334859]  warn_alloc.cold.116+0xb7/0x1bd
[  363.339433] lowmem_reserve[]: 0 0 3503 3503
[  363.344645]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  363.372391] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  363.376712]  ? lock_downgrade+0x900/0x900
[  363.381012] lowmem_reserve[]: 0 0 0 0
[  363.385866]  ? trace_hardirqs_off+0xb8/0x310
[  363.414984] 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
[  363.419131]  ? trace_hardirqs_off+0xb8/0x310
[  363.422917] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  363.427320]  __alloc_pages_slowpath+0x26e8/0x2e10
[  363.440820] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  363.445246]  ? warn_alloc+0x120/0x120
[  363.460897] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  363.465733]  ? print_usage_bug+0xc0/0xc0
[  363.481056] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  363.484846]  ? warn_alloc+0x120/0x120
[  363.493674] 782 total pagecache pages
[  363.497728]  ? warn_alloc+0x120/0x120
[  363.506282] 0 pages in swap cache
[  363.510063]  ? print_usage_bug+0xc0/0xc0
[  363.513843] Swap cache stats: add 0, delete 0, find 0/0
[  363.517636]  ? print_usage_bug+0xc0/0xc0
[  363.521089] Free swap  = 0kB
[  363.525156]  ? __lock_acquire+0x62f/0x4c20
[  363.530498] Total swap = 0kB
[  363.534550]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.537539] 1965979 pages RAM
[  363.541765]  ? should_fail+0x22d/0xd01
[  363.544767] 0 pages HighMem/MovableOnly
[  363.550290]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  363.553368] 342853 pages reserved
[  363.557246]  ? __lock_acquire+0x62f/0x4c20
[  363.561290] 0 pages cma reserved
[  363.566398]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  363.569884] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  363.574059]  ? __lock_acquire+0x62f/0x4c20
[  363.574090]  ? should_fail+0x22d/0xd01
[  363.577501] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  363.582541]  ? find_held_lock+0x36/0x1c0
[  363.589010] syz-fuzzer cpuset=/ mems_allowed=0
[  363.593250]  ? mark_held_locks+0x130/0x130
[  363.620165]  ? mark_held_locks+0x130/0x130
[  363.624392]  ? zap_class+0x640/0x640
[  363.628104]  ? mark_held_locks+0xc7/0x130
[  363.632258]  ? do_raw_spin_unlock+0xa7/0x330
[  363.636682]  ? zap_class+0x640/0x640
[  363.640389]  ? print_usage_bug+0xc0/0xc0
[  363.644462]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.650025]  ? check_preemption_disabled+0x48/0x280
[  363.655060]  ? __lock_is_held+0xb5/0x140
[  363.659124]  __alloc_pages_nodemask+0xa80/0xde0
[  363.663783]  ? zap_class+0x640/0x640
[  363.667748]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  363.672798]  ? find_held_lock+0x36/0x1c0
[  363.676864]  ? ____cache_alloc_node+0x1c7/0x1e0
[  363.681542]  ? lock_downgrade+0x900/0x900
[  363.685704]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.691255]  cache_grow_begin+0xa5/0x8c0
[  363.695350]  ? do_raw_spin_unlock+0xa7/0x330
[  363.699775]  fallback_alloc+0x204/0x2e0
[  363.703748]  ____cache_alloc_node+0x1c7/0x1e0
[  363.708245]  kmem_cache_alloc_node+0xe3/0x730
[  363.712753]  ? ipv6_get_ifaddr+0x42e/0x620
[  363.716997]  __alloc_skb+0x119/0x770
[  363.720706]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  363.726019]  ? netdev_alloc_frag+0x1f0/0x1f0
[  363.730424]  ? lock_downgrade+0x900/0x900
[  363.734574]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.740111]  ? refcount_sub_and_test_checked+0x203/0x310
[  363.745572]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  363.751024]  ? addrconf_rs_timer+0x690/0x690
[  363.755443]  ndisc_alloc_skb+0x144/0x340
[  363.759501]  ndisc_send_rs+0x331/0x6e0
[  363.763387]  addrconf_rs_timer+0x314/0x690
[  363.767622]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.771864]  call_timer_fn+0x272/0x920
[  363.775752]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.780013]  ? process_timeout+0x40/0x40
[  363.784082]  ? __run_timers+0x7da/0xc70
[  363.788054]  ? _raw_spin_unlock_irq+0x27/0x80
[  363.792556]  ? _raw_spin_unlock_irq+0x27/0x80
[  363.797061]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.801294]  ? lockdep_hardirqs_on+0x296/0x5b0
[  363.805877]  ? trace_hardirqs_on+0xbd/0x310
[  363.810193]  ? kasan_check_read+0x11/0x20
[  363.814336]  ? __run_timers+0x7da/0xc70
[  363.818325]  ? trace_hardirqs_off_caller+0x310/0x310
[  363.823446]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.827699]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.831945]  __run_timers+0x7e5/0xc70
[  363.835748]  ? timer_fixup_init+0x70/0x70
[  363.839892]  ? _raw_spin_unlock_irq+0x27/0x80
[  363.844397]  ? _raw_spin_unlock_irq+0x27/0x80
[  363.848889]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  363.853485]  ? trace_hardirqs_on+0xbd/0x310
[  363.857805]  ? kasan_check_read+0x11/0x20
[  363.861951]  ? finish_task_switch+0x1f4/0x910
[  363.866445]  ? trace_hardirqs_off_caller+0x310/0x310
[  363.871542]  ? compat_start_thread+0x80/0x80
[  363.875969]  ? pvclock_read_flags+0x160/0x160
[  363.880477]  ? __switch_to_asm+0x34/0x70
[  363.884537]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.890104]  ? check_preemption_disabled+0x48/0x280
[  363.895126]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  363.900664]  ? rcu_pm_notify+0xc0/0xc0
[  363.904557]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.910092]  ? check_preemption_disabled+0x48/0x280
[  363.915108]  run_timer_softirq+0x52/0xb0
[  363.919163]  ? rcu_read_lock_sched_held+0x14f/0x180
[  363.924195]  __do_softirq+0x308/0xb7e
[  363.928016]  ? retint_kernel+0x2d/0x2d
[  363.931901]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  363.937004]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  363.942480]  ? trace_hardirqs_on+0x310/0x310
[  363.946893]  ? schedule+0x108/0x460
[  363.950519]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  363.955301]  ? trace_hardirqs_off+0xb8/0x310
[  363.959715]  ? smpboot_thread_fn+0x68b/0xa00
[  363.964131]  ? trace_hardirqs_on+0x310/0x310
[  363.968538]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.974069]  ? check_preemption_disabled+0x48/0x280
[  363.979096]  ? takeover_tasklets+0xa90/0xa90
[  363.983520]  run_ksoftirqd+0x5e/0x100
[  363.987357]  smpboot_thread_fn+0x68b/0xa00
[  363.991623]  ? sort_range+0x30/0x30
[  363.995259]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  364.000383]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  364.005925]  ? __kthread_parkme+0xfb/0x1a0
[  364.010161]  ? sort_range+0x30/0x30
[  364.013790]  kthread+0x35a/0x440
[  364.017175]  ? kthread_stop+0x900/0x900
[  364.021153]  ret_from_fork+0x3a/0x50
[  364.024887] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  364.024961] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  364.031816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  364.031821] Call Trace:
[  364.031827]  <IRQ>
[  364.031844]  dump_stack+0x244/0x39d
[  364.031880]  ? dump_stack_print_info.cold.1+0x20/0x20
[  364.038472] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  364.047727]  warn_alloc.cold.116+0xb7/0x1bd
[  364.050285] ksoftirqd/0 cpuset=/ mems_allowed=0
[  364.052431]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  364.085390]  ? lock_downgrade+0x900/0x900
[  364.089543]  ? trace_hardirqs_off+0xb8/0x310
[  364.093973]  ? trace_hardirqs_off+0xb8/0x310
[  364.098400]  __alloc_pages_slowpath+0x26e8/0x2e10
[  364.103269]  ? warn_alloc+0x120/0x120
[  364.107074]  ? print_usage_bug+0xc0/0xc0
[  364.111135]  ? warn_alloc+0x120/0x120
[  364.114953]  ? warn_alloc+0x120/0x120
[  364.118757]  ? print_usage_bug+0xc0/0xc0
[  364.122830]  ? print_usage_bug+0xc0/0xc0
[  364.126891]  ? __lock_acquire+0x62f/0x4c20
[  364.131129]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  364.136666]  ? should_fail+0x22d/0xd01
[  364.140557]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  364.145660]  ? __lock_acquire+0x62f/0x4c20
[  364.149896]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  364.155004]  ? __lock_acquire+0x62f/0x4c20
[  364.159240]  ? should_fail+0x22d/0xd01
[  364.163123]  ? find_held_lock+0x36/0x1c0
[  364.167208]  ? mark_held_locks+0x130/0x130
[  364.171452]  ? mark_held_locks+0x130/0x130
[  364.175703]  ? zap_class+0x640/0x640
[  364.179414]  ? zap_class+0x640/0x640
[  364.183129]  ? print_usage_bug+0xc0/0xc0
[  364.187183]  ? do_raw_spin_unlock+0xa7/0x330
[  364.191585]  ? zap_class+0x640/0x640
[  364.195297]  ? print_usage_bug+0xc0/0xc0
[  364.199358]  ? wq_watchdog_touch+0x9c/0xfe
[  364.203596]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.209137]  ? check_preemption_disabled+0x48/0x280
[  364.214160]  ? __lock_is_held+0xb5/0x140
[  364.218228]  __alloc_pages_nodemask+0xa80/0xde0
[  364.222901]  ? zap_class+0x640/0x640
[  364.226613]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  364.231658]  ? find_held_lock+0x36/0x1c0
[  364.235721]  ? ____cache_alloc_node+0x1c7/0x1e0
[  364.240404]  ? lock_downgrade+0x900/0x900
[  364.244581]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.250121]  cache_grow_begin+0xa5/0x8c0
[  364.254179]  ? do_raw_spin_unlock+0xa7/0x330
[  364.258589]  fallback_alloc+0x204/0x2e0
[  364.262591]  ____cache_alloc_node+0x1c7/0x1e0
[  364.267125]  kmem_cache_alloc_node+0xe3/0x730
[  364.271635]  ? ipv6_get_ifaddr+0x42e/0x620
[  364.275877]  __alloc_skb+0x119/0x770
[  364.279608]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  364.284885]  ? netdev_alloc_frag+0x1f0/0x1f0
[  364.289324]  ? lock_downgrade+0x900/0x900
[  364.293479]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.299022]  ? refcount_sub_and_test_checked+0x203/0x310
[  364.304479]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  364.309929]  ? addrconf_rs_timer+0x690/0x690
[  364.314346]  ndisc_alloc_skb+0x144/0x340
[  364.318425]  ndisc_send_rs+0x331/0x6e0
[  364.322348]  addrconf_rs_timer+0x314/0x690
[  364.326614]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.330859]  call_timer_fn+0x272/0x920
[  364.334747]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.339000]  ? process_timeout+0x40/0x40
[  364.343073]  ? mark_held_locks+0xc7/0x130
[  364.347223]  ? _raw_spin_unlock_irq+0x27/0x80
[  364.351716]  ? _raw_spin_unlock_irq+0x27/0x80
[  364.356213]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.360448]  ? lockdep_hardirqs_on+0x296/0x5b0
[  364.365033]  ? trace_hardirqs_on+0xbd/0x310
[  364.369360]  ? kasan_check_read+0x11/0x20
[  364.373518]  ? __run_timers+0x7da/0xc70
[  364.377501]  ? trace_hardirqs_off_caller+0x310/0x310
[  364.382608]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.386854]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.391100]  __run_timers+0x7e5/0xc70
[  364.394941]  ? timer_fixup_init+0x70/0x70
[  364.399095]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  364.404110]  ? zap_class+0x640/0x640
[  364.407824]  ? print_usage_bug+0xc0/0xc0
[  364.411885]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  364.417096]  ? find_held_lock+0x36/0x1c0
[  364.421173]  ? zap_class+0x640/0x640
[  364.424906]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.430460]  ? check_preemption_disabled+0x48/0x280
[  364.435486]  ? __lock_is_held+0xb5/0x140
[  364.439562]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.445098]  ? check_preemption_disabled+0x48/0x280
[  364.450127]  run_timer_softirq+0x52/0xb0
[  364.454213]  ? rcu_read_lock_sched_held+0x14f/0x180
[  364.459257]  __do_softirq+0x308/0xb7e
[  364.463064]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  364.467572]  ? lock_downgrade+0x900/0x900
[  364.471722]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  364.476837]  ? pvclock_read_flags+0x160/0x160
[  364.481333]  ? lapic_next_event+0x5a/0x90
[  364.485485]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.491047]  ? kvm_clock_read+0x18/0x30
[  364.495028]  ? kvm_sched_clock_read+0x9/0x20
[  364.499468]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  364.505025]  ? check_preemption_disabled+0x48/0x280
[  364.510054]  irq_exit+0x17f/0x1c0
[  364.513507]  smp_apic_timer_interrupt+0x1cb/0x760
[  364.518344]  ? smp_call_function_single_interrupt+0x159/0x650
[  364.524240]  ? smp_call_function_single_interrupt+0x650/0x650
[  364.530123]  ? interrupt_entry+0xb5/0xc0
[  364.534191]  ? trace_hardirqs_off_caller+0xbb/0x310
[  364.539212]  ? trace_hardirqs_off_caller+0xbb/0x310
[  364.544233]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.549078]  ? trace_hardirqs_on_caller+0x310/0x310
[  364.554094]  ? trace_hardirqs_on_caller+0x310/0x310
[  364.559110]  ? task_prio+0x50/0x50
[  364.562652]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.568189]  ? check_preemption_disabled+0x48/0x280
[  364.573212]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.578068]  apic_timer_interrupt+0xf/0x20
[  364.582298]  </IRQ>
[  364.584579] RIP: 0010:dump_stack+0x358/0x39d
[  364.589020] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  364.607931] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  364.615636] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  364.622902] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  364.630169] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  364.637434] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  364.644700] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  364.652017]  ? dump_stack+0x34f/0x39d
[  364.655826]  ? dump_stack_print_info.cold.1+0x20/0x20
[  364.661028]  ? mark_held_locks+0x130/0x130
[  364.665262]  ? mark_held_locks+0x130/0x130
[  364.669516]  dump_header+0x27b/0xf72
[  364.673239]  ? pagefault_out_of_memory+0x197/0x197
[  364.678191]  ? __lock_acquire+0x62f/0x4c20
[  364.682430]  ? percpu_ref_get_many+0x240/0x240
[  364.687019]  ? print_usage_bug+0xc0/0xc0
[  364.691097]  ? zap_class+0x640/0x640
[  364.694822]  ? print_usage_bug+0xc0/0xc0
[  364.698883]  ? print_usage_bug+0xc0/0xc0
[  364.702943]  ? zap_class+0x640/0x640
[  364.706660]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.712220]  ? find_held_lock+0x36/0x1c0
[  364.716297]  ? mark_held_locks+0xc7/0x130
[  364.720447]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  364.725550]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  364.730700]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  364.735280]  ? trace_hardirqs_on+0xbd/0x310
[  364.739602]  ? kasan_check_read+0x11/0x20
[  364.743748]  ? ___ratelimit+0x3b4/0x672
[  364.747726]  ? trace_hardirqs_off_caller+0x310/0x310
[  364.752827]  ? trace_hardirqs_on+0x310/0x310
[  364.757229]  ? lock_downgrade+0x900/0x900
[  364.761392]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  364.766500]  ? ___ratelimit+0x3b9/0x672
[  364.770475]  ? idr_get_free+0xf70/0xf70
[  364.774458]  ? find_held_lock+0x36/0x1c0
[  364.778537]  oom_kill_process.cold.27+0x10/0x903
[  364.783285]  ? zap_class+0x640/0x640
[  364.787022]  ? check_preemption_disabled+0x48/0x280
[  364.792093]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  364.797039]  ? kasan_check_read+0x11/0x20
[  364.801720]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  364.807007]  ? oom_evaluate_task+0x540/0x540
[  364.811901]  ? find_held_lock+0x36/0x1c0
[  364.815969]  ? out_of_memory+0x974/0x1430
[  364.820129]  ? lock_downgrade+0x900/0x900
[  364.824274]  ? check_preemption_disabled+0x48/0x280
[  364.829312]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  364.834237]  ? kasan_check_read+0x11/0x20
[  364.838392]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  364.843663]  ? rcu_softirq_qs+0x20/0x20
[  364.847639]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  364.853167]  ? oom_evaluate_task+0x302/0x540
[  364.857584]  out_of_memory+0xa84/0x1430
[  364.861585]  ? oom_killer_disable+0x3a0/0x3a0
[  364.866072]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  364.871009]  ? __ww_mutex_check_waiters+0x160/0x160
[  364.876048]  __alloc_pages_slowpath+0x2354/0x2e10
[  364.880906]  ? warn_alloc+0x120/0x120
[  364.884708]  ? mark_held_locks+0x130/0x130
[  364.888939]  ? find_get_entry+0xaae/0x1120
[  364.893181]  ? filemap_map_pages+0x1a20/0x1a20
[  364.897769]  ? zap_class+0x640/0x640
[  364.901482]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.907045]  ? check_preemption_disabled+0x48/0x280
[  364.912074]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  364.917607]  ? should_fail+0x22d/0xd01
[  364.921511]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  364.926618]  ? zap_class+0x640/0x640
[  364.930356]  ? __lock_is_held+0xb5/0x140
[  364.934434]  ? mark_held_locks+0x130/0x130
[  364.938699]  ? lock_release+0xa00/0xa00
[  364.942668]  ? perf_trace_sched_process_exec+0x860/0x860
[  364.948116]  ? xa_load+0x2ba/0x460
[  364.951657]  ? lock_downgrade+0x900/0x900
[  364.955803]  ? __might_sleep+0x95/0x190
[  364.959795]  __alloc_pages_nodemask+0xa80/0xde0
[  364.964499]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  364.969516]  ? __page_cache_alloc+0x191/0x5c0
[  364.974023]  ? xa_load+0x2e1/0x460
[  364.977560]  ? xa_clear_mark+0x40/0x40
[  364.981457]  ? zap_class+0x640/0x640
[  364.985182]  ? zap_class+0x640/0x640
[  364.988887]  ? zap_class+0x640/0x640
[  364.992618]  ? __do_page_cache_readahead+0x663/0x810
[  364.997737]  ? find_held_lock+0x36/0x1c0
[  365.001821]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  365.007365]  alloc_pages_current+0x173/0x350
[  365.011792]  __page_cache_alloc+0x38c/0x5c0
[  365.016127]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  365.021072]  ? kasan_check_read+0x11/0x20
[  365.025227]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.030500]  ? generic_perform_write+0x6a0/0x6a0
[  365.035263]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.040806]  ? check_preemption_disabled+0x48/0x280
[  365.045846]  filemap_fault+0x1595/0x25f0
[  365.049942]  ? __lock_page_or_retry+0xa00/0xa00
[  365.054607]  ? mark_held_locks+0x130/0x130
[  365.058842]  ? filemap_map_pages+0xd6b/0x1a20
[  365.063329]  ? lock_downgrade+0x900/0x900
[  365.067485]  ? check_preemption_disabled+0x48/0x280
[  365.072526]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  365.077471]  ? kasan_check_read+0x11/0x20
[  365.081659]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.086952]  ? rcu_softirq_qs+0x20/0x20
[  365.090977]  ? filemap_map_pages+0xd92/0x1a20
[  365.095525]  ? find_get_entries_tag+0x1400/0x1400
[  365.100371]  ? debug_object_destroy+0x2b0/0x2b0
[  365.105043]  ? lock_pi_update_atomic+0x150/0x150
[  365.109801]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.115360]  ? lock_acquire+0x1ed/0x520
[  365.119333]  ? ext4_filemap_fault+0x7a/0xad
[  365.123666]  ? lock_release+0xa00/0xa00
[  365.127655]  ? perf_trace_sched_process_exec+0x860/0x860
[  365.133122]  ? print_usage_bug+0xc0/0xc0
[  365.137182]  ? print_usage_bug+0xc0/0xc0
[  365.141254]  ? down_read+0x8d/0x120
[  365.144880]  ? ext4_filemap_fault+0x7a/0xad
[  365.149202]  ? __down_interruptible+0x700/0x700
[  365.153884]  ext4_filemap_fault+0x82/0xad
[  365.158032]  __do_fault+0x100/0x6b0
[  365.161663]  ? pmd_devmap_trans_unstable+0x220/0x220
[  365.166779]  ? mark_held_locks+0x130/0x130
[  365.171026]  ? mark_held_locks+0x130/0x130
[  365.175265]  ? debug_smp_processor_id+0x1c/0x20
[  365.179935]  ? perf_trace_lock+0x14d/0x7a0
[  365.184177]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.189719]  __handle_mm_fault+0x3ea0/0x5be0
[  365.194145]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  365.199022]  ? lock_is_held_type+0x210/0x210
[  365.203472]  ? ksys_dup3+0x680/0x680
[  365.207202]  ? zap_class+0x640/0x640
[  365.210927]  ? zap_class+0x640/0x640
[  365.214640]  ? __x64_sys_futex+0x53e/0x6a0
[  365.218880]  ? find_held_lock+0x36/0x1c0
[  365.222951]  ? handle_mm_fault+0x42a/0xc70
[  365.227190]  ? lock_downgrade+0x900/0x900
[  365.231342]  ? check_preemption_disabled+0x48/0x280
[  365.236365]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  365.241308]  ? kasan_check_read+0x11/0x20
[  365.245454]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.250730]  ? rcu_softirq_qs+0x20/0x20
[  365.254713]  ? trace_hardirqs_off_caller+0x310/0x310
[  365.259820]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.265361]  ? check_preemption_disabled+0x48/0x280
[  365.270401]  handle_mm_fault+0x54f/0xc70
[  365.274477]  ? __handle_mm_fault+0x5be0/0x5be0
[  365.279100]  ? find_vma+0x34/0x190
[  365.282651]  __do_page_fault+0x5e8/0xe60
[  365.286719]  ? trace_hardirqs_off+0xb8/0x310
[  365.291139]  do_page_fault+0xf2/0x7e0
[  365.294944]  ? vmalloc_sync_all+0x30/0x30
[  365.299113]  ? error_entry+0x70/0xd0
[  365.302828]  ? trace_hardirqs_off_caller+0xbb/0x310
[  365.307856]  ? trace_hardirqs_on_caller+0xc0/0x310
[  365.312789]  ? syscall_return_slowpath+0x5e0/0x5e0
[  365.317713]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  365.322552]  ? trace_hardirqs_on_caller+0x310/0x310
[  365.327581]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  365.333065]  ? prepare_exit_to_usermode+0x291/0x3b0
[  365.338091]  ? page_fault+0x8/0x30
[  365.341657]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  365.346499]  ? page_fault+0x8/0x30
[  365.350053]  page_fault+0x1e/0x30
[  365.353501] RIP: 0033:0x40f9c0
[  365.356717] Code: Bad RIP value.
[  365.360074] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  365.365433] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  365.372697] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  365.379974] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  365.387300] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  365.394574] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  365.401911] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  365.401916] warn_alloc_show_mem: 1 callbacks suppressed
[  365.401923] Mem-Info:
[  365.408672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  365.414079] active_anon:54833 inactive_anon:712 isolated_anon:0
[  365.414079]  active_file:11 inactive_file:12 isolated_file:0
[  365.414079]  unevictable:0 dirty:0 writeback:0 unstable:0
[  365.414079]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  365.414079]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  365.414079]  free:13768 free_pcp:742 free_cma:0
[  365.416480] Call Trace:
[  365.425876] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  365.458737]  dump_stack+0x244/0x39d
[  365.461300] 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
[  365.488873]  ? dump_stack_print_info.cold.1+0x20/0x20
[  365.492474] lowmem_reserve[]: 0 2818 6321 6321
[  365.518594]  warn_alloc.cold.116+0xb7/0x1bd
[  365.523749] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  365.528322]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  365.532620] lowmem_reserve[]: 0 0 3503 3503
[  365.560375]  ? lock_downgrade+0x900/0x900
[  365.565190] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  365.569504]  ? trace_hardirqs_off+0xb8/0x310
[  365.573624] lowmem_reserve[]: 0 0 0 0
[  365.602765]  ? trace_hardirqs_off+0xb8/0x310
[  365.607168] 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
[  365.610970]  __alloc_pages_slowpath+0x26e8/0x2e10
[  365.615372] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  365.628944]  ? warn_alloc+0x120/0x120
[  365.633739] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  365.649425]  ? print_usage_bug+0xc0/0xc0
[  365.653207] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  365.668777]  ? warn_alloc+0x120/0x120
[  365.668792]  ? warn_alloc+0x120/0x120
[  365.672833] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  365.681650]  ? print_usage_bug+0xc0/0xc0
[  365.685423] 782 total pagecache pages
[  365.689214]  ? print_usage_bug+0xc0/0xc0
[  365.697783] 0 pages in swap cache
[  365.701821]  ? __lock_acquire+0x62f/0x4c20
[  365.705604] Swap cache stats: add 0, delete 0, find 0/0
[  365.709650]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.713072] Free swap  = 0kB
[  365.713080] Total swap = 0kB
[  365.717318]  ? should_fail+0x22d/0xd01
[  365.722681] 1965979 pages RAM
[  365.728234]  ? __lock_acquire+0x62f/0x4c20
[  365.731246] 0 pages HighMem/MovableOnly
[  365.734271]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  365.738122] 342853 pages reserved
[  365.738130] 0 pages cma reserved
[  365.741226]  ? __lock_acquire+0x62f/0x4c20
[  365.745513] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  365.749435]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  365.749448]  ? __lock_acquire+0x62f/0x4c20
[  365.749464]  ? should_fail+0x22d/0xd01
[  365.754611] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  365.758002]  ? mark_held_locks+0x130/0x130
[  365.761340] syz-fuzzer cpuset=/ mems_allowed=0
[  365.765584]  ? mark_held_locks+0x130/0x130
[  365.808496]  ? lock_downgrade+0x900/0x900
[  365.812649]  ? zap_class+0x640/0x640
[  365.816547]  ? print_usage_bug+0xc0/0xc0
[  365.820607]  ? trace_hardirqs_off+0xb8/0x310
[  365.825018]  ? kasan_check_read+0x11/0x20
[  365.829179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.834743]  ? check_preemption_disabled+0x48/0x280
[  365.839778]  ? __lock_is_held+0xb5/0x140
[  365.843841]  __alloc_pages_nodemask+0xa80/0xde0
[  365.848505]  ? zap_class+0x640/0x640
[  365.852255]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  365.857304]  ? find_held_lock+0x36/0x1c0
[  365.861394]  ? ____cache_alloc_node+0x1c7/0x1e0
[  365.866053]  ? lock_downgrade+0x900/0x900
[  365.870194]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.875868]  cache_grow_begin+0xa5/0x8c0
[  365.879942]  ? do_raw_spin_unlock+0xa7/0x330
[  365.884367]  fallback_alloc+0x204/0x2e0
[  365.888371]  ____cache_alloc_node+0x1c7/0x1e0
[  365.892862]  kmem_cache_alloc_node+0xe3/0x730
[  365.897348]  ? ipv6_get_ifaddr+0x42e/0x620
[  365.901611]  __alloc_skb+0x119/0x770
[  365.905343]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.910614]  ? netdev_alloc_frag+0x1f0/0x1f0
[  365.915050]  ? lock_downgrade+0x900/0x900
[  365.919199]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.924738]  ? refcount_sub_and_test_checked+0x203/0x310
[  365.930204]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  365.935650]  ? addrconf_rs_timer+0x690/0x690
[  365.940077]  ndisc_alloc_skb+0x144/0x340
[  365.944151]  ndisc_send_rs+0x331/0x6e0
[  365.948040]  addrconf_rs_timer+0x314/0x690
[  365.952280]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  365.956521]  call_timer_fn+0x272/0x920
[  365.960403]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  365.964644]  ? process_timeout+0x40/0x40
[  365.968759]  ? __run_timers+0x7da/0xc70
[  365.972763]  ? _raw_spin_unlock_irq+0x27/0x80
[  365.977267]  ? _raw_spin_unlock_irq+0x27/0x80
[  365.981770]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  365.986071]  ? lockdep_hardirqs_on+0x296/0x5b0
[  365.990676]  ? trace_hardirqs_on+0xbd/0x310
[  365.995010]  ? kasan_check_read+0x11/0x20
[  365.999170]  ? __run_timers+0x7da/0xc70
[  366.003142]  ? trace_hardirqs_off_caller+0x310/0x310
[  366.008249]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.012480]  __run_timers+0x7e5/0xc70
[  366.016288]  ? timer_fixup_init+0x70/0x70
[  366.020478]  ? _raw_spin_unlock_irq+0x27/0x80
[  366.024970]  ? _raw_spin_unlock_irq+0x27/0x80
[  366.029470]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  366.034052]  ? trace_hardirqs_on+0xbd/0x310
[  366.038367]  ? kasan_check_read+0x11/0x20
[  366.042514]  ? finish_task_switch+0x1f4/0x910
[  366.047015]  ? trace_hardirqs_off_caller+0x310/0x310
[  366.052112]  ? compat_start_thread+0x80/0x80
[  366.056536]  ? pvclock_read_flags+0x160/0x160
[  366.061026]  ? __switch_to_asm+0x34/0x70
[  366.065083]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.070630]  ? check_preemption_disabled+0x48/0x280
[  366.075652]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  366.081234]  ? rcu_pm_notify+0xc0/0xc0
[  366.085147]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.090680]  ? check_preemption_disabled+0x48/0x280
[  366.095714]  run_timer_softirq+0x52/0xb0
[  366.099771]  ? rcu_read_lock_sched_held+0x14f/0x180
[  366.104783]  __do_softirq+0x308/0xb7e
[  366.108585]  ? retint_kernel+0x2d/0x2d
[  366.112488]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  366.117600]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  366.123049]  ? trace_hardirqs_on+0x310/0x310
[  366.127460]  ? schedule+0x108/0x460
[  366.131083]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  366.135843]  ? trace_hardirqs_off+0xb8/0x310
[  366.140284]  ? smpboot_thread_fn+0x68b/0xa00
[  366.144747]  ? trace_hardirqs_on+0x310/0x310
[  366.149171]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  366.154719]  ? check_preemption_disabled+0x48/0x280
[  366.159731]  ? takeover_tasklets+0xa90/0xa90
[  366.164132]  run_ksoftirqd+0x5e/0x100
[  366.167976]  smpboot_thread_fn+0x68b/0xa00
[  366.172250]  ? sort_range+0x30/0x30
[  366.175874]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  366.180970]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  366.186525]  ? __kthread_parkme+0xfb/0x1a0
[  366.190757]  ? sort_range+0x30/0x30
[  366.194394]  kthread+0x35a/0x440
[  366.197776]  ? kthread_stop+0x900/0x900
[  366.201753]  ret_from_fork+0x3a/0x50
[  366.205489] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  366.205569] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  366.212428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  366.212434] Call Trace:
[  366.212440]  <IRQ>
[  366.212456]  dump_stack+0x244/0x39d
[  366.212479]  ? dump_stack_print_info.cold.1+0x20/0x20
[  366.219018] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  366.228312]  warn_alloc.cold.116+0xb7/0x1bd
[  366.230867] ksoftirqd/0 cpuset=/ mems_allowed=0
[  366.233018]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  366.265906]  ? lock_downgrade+0x900/0x900
[  366.270073]  ? trace_hardirqs_off+0xb8/0x310
[  366.274489]  ? trace_hardirqs_off+0xb8/0x310
[  366.278908]  __alloc_pages_slowpath+0x26e8/0x2e10
[  366.283785]  ? warn_alloc+0x120/0x120
[  366.287589]  ? print_usage_bug+0xc0/0xc0
[  366.291701]  ? warn_alloc+0x120/0x120
[  366.295504]  ? warn_alloc+0x120/0x120
[  366.299305]  ? print_usage_bug+0xc0/0xc0
[  366.303386]  ? print_usage_bug+0xc0/0xc0
[  366.307464]  ? __lock_acquire+0x62f/0x4c20
[  366.311720]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  366.317261]  ? should_fail+0x22d/0xd01
[  366.321157]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  366.326264]  ? __lock_acquire+0x62f/0x4c20
[  366.330521]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  366.335623]  ? __lock_acquire+0x62f/0x4c20
[  366.339856]  ? should_fail+0x22d/0xd01
[  366.343760]  ? find_held_lock+0x36/0x1c0
[  366.347850]  ? mark_held_locks+0x130/0x130
[  366.352095]  ? mark_held_locks+0x130/0x130
[  366.356330]  ? zap_class+0x640/0x640
[  366.360049]  ? zap_class+0x640/0x640
[  366.363772]  ? print_usage_bug+0xc0/0xc0
[  366.367832]  ? do_raw_spin_unlock+0xa7/0x330
[  366.372255]  ? zap_class+0x640/0x640
[  366.376010]  ? print_usage_bug+0xc0/0xc0
[  366.380094]  ? wq_watchdog_touch+0x9c/0xfe
[  366.384336]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.389878]  ? check_preemption_disabled+0x48/0x280
[  366.394903]  ? __lock_is_held+0xb5/0x140
[  366.398967]  __alloc_pages_nodemask+0xa80/0xde0
[  366.403641]  ? zap_class+0x640/0x640
[  366.407365]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  366.412394]  ? find_held_lock+0x36/0x1c0
[  366.416476]  ? ____cache_alloc_node+0x1c7/0x1e0
[  366.421161]  ? lock_downgrade+0x900/0x900
[  366.425317]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.430858]  cache_grow_begin+0xa5/0x8c0
[  366.434917]  ? do_raw_spin_unlock+0xa7/0x330
[  366.439346]  fallback_alloc+0x204/0x2e0
[  366.443355]  ____cache_alloc_node+0x1c7/0x1e0
[  366.447857]  kmem_cache_alloc_node+0xe3/0x730
[  366.452371]  ? ipv6_get_ifaddr+0x42e/0x620
[  366.456649]  __alloc_skb+0x119/0x770
[  366.460358]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  366.465640]  ? netdev_alloc_frag+0x1f0/0x1f0
[  366.470052]  ? lock_downgrade+0x900/0x900
[  366.474218]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.479753]  ? refcount_sub_and_test_checked+0x203/0x310
[  366.485206]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  366.490657]  ? addrconf_rs_timer+0x690/0x690
[  366.495093]  ndisc_alloc_skb+0x144/0x340
[  366.499169]  ndisc_send_rs+0x331/0x6e0
[  366.503058]  addrconf_rs_timer+0x314/0x690
[  366.507298]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.511554]  call_timer_fn+0x272/0x920
[  366.515467]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.519736]  ? process_timeout+0x40/0x40
[  366.523821]  ? mark_held_locks+0xc7/0x130
[  366.527967]  ? _raw_spin_unlock_irq+0x27/0x80
[  366.532469]  ? _raw_spin_unlock_irq+0x27/0x80
[  366.536964]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.541218]  ? lockdep_hardirqs_on+0x296/0x5b0
[  366.545806]  ? trace_hardirqs_on+0xbd/0x310
[  366.550124]  ? kasan_check_read+0x11/0x20
[  366.554283]  ? __run_timers+0x7da/0xc70
[  366.558258]  ? trace_hardirqs_off_caller+0x310/0x310
[  366.563389]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.567666]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.571925]  __run_timers+0x7e5/0xc70
[  366.575727]  ? timer_fixup_init+0x70/0x70
[  366.579868]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  366.584882]  ? zap_class+0x640/0x640
[  366.588602]  ? print_usage_bug+0xc0/0xc0
[  366.592684]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  366.597895]  ? find_held_lock+0x36/0x1c0
[  366.601968]  ? zap_class+0x640/0x640
[  366.605693]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.611232]  ? check_preemption_disabled+0x48/0x280
[  366.616254]  ? __lock_is_held+0xb5/0x140
[  366.620319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.625857]  ? check_preemption_disabled+0x48/0x280
[  366.630876]  run_timer_softirq+0x52/0xb0
[  366.634934]  ? rcu_read_lock_sched_held+0x14f/0x180
[  366.639945]  __do_softirq+0x308/0xb7e
[  366.643786]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  366.648272]  ? lock_downgrade+0x900/0x900
[  366.652422]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  366.657529]  ? pvclock_read_flags+0x160/0x160
[  366.662026]  ? lapic_next_event+0x5a/0x90
[  366.666177]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.671740]  ? kvm_clock_read+0x18/0x30
[  366.675717]  ? kvm_sched_clock_read+0x9/0x20
[  366.680129]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  366.685663]  ? check_preemption_disabled+0x48/0x280
[  366.690694]  irq_exit+0x17f/0x1c0
[  366.694147]  smp_apic_timer_interrupt+0x1cb/0x760
[  366.698982]  ? smp_call_function_single_interrupt+0x159/0x650
[  366.704869]  ? smp_call_function_single_interrupt+0x650/0x650
[  366.710744]  ? interrupt_entry+0xb5/0xc0
[  366.714803]  ? trace_hardirqs_off_caller+0xbb/0x310
[  366.719810]  ? trace_hardirqs_off_caller+0xbb/0x310
[  366.724821]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  366.729659]  ? trace_hardirqs_on_caller+0x310/0x310
[  366.734712]  ? trace_hardirqs_on_caller+0x310/0x310
[  366.739738]  ? task_prio+0x50/0x50
[  366.743303]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.748874]  ? check_preemption_disabled+0x48/0x280
[  366.753920]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  366.758786]  apic_timer_interrupt+0xf/0x20
[  366.763015]  </IRQ>
[  366.765260] RIP: 0010:dump_stack+0x358/0x39d
[  366.769676] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  366.788589] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  366.796326] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  366.804113] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  366.811377] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  366.818638] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  366.825925] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  366.833205]  ? dump_stack+0x34f/0x39d
[  366.837063]  ? dump_stack_print_info.cold.1+0x20/0x20
[  366.842250]  ? mark_held_locks+0x130/0x130
[  366.846493]  ? mark_held_locks+0x130/0x130
[  366.850794]  dump_header+0x27b/0xf72
[  366.854540]  ? pagefault_out_of_memory+0x197/0x197
[  366.859467]  ? __lock_acquire+0x62f/0x4c20
[  366.863695]  ? percpu_ref_get_many+0x240/0x240
[  366.868287]  ? print_usage_bug+0xc0/0xc0
[  366.872346]  ? zap_class+0x640/0x640
[  366.876058]  ? print_usage_bug+0xc0/0xc0
[  366.880122]  ? print_usage_bug+0xc0/0xc0
[  366.884183]  ? zap_class+0x640/0x640
[  366.887897]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.893438]  ? find_held_lock+0x36/0x1c0
[  366.897501]  ? mark_held_locks+0xc7/0x130
[  366.901643]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  366.906752]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  366.911853]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  366.916478]  ? trace_hardirqs_on+0xbd/0x310
[  366.920808]  ? kasan_check_read+0x11/0x20
[  366.924947]  ? ___ratelimit+0x3b4/0x672
[  366.928924]  ? trace_hardirqs_off_caller+0x310/0x310
[  366.934024]  ? trace_hardirqs_on+0x310/0x310
[  366.938430]  ? lock_downgrade+0x900/0x900
[  366.942584]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  366.947681]  ? ___ratelimit+0x3b9/0x672
[  366.951651]  ? idr_get_free+0xf70/0xf70
[  366.955622]  ? find_held_lock+0x36/0x1c0
[  366.959681]  oom_kill_process.cold.27+0x10/0x903
[  366.964430]  ? zap_class+0x640/0x640
[  366.968142]  ? check_preemption_disabled+0x48/0x280
[  366.973154]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  366.978080]  ? kasan_check_read+0x11/0x20
[  366.982239]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  366.987518]  ? oom_evaluate_task+0x540/0x540
[  366.991925]  ? find_held_lock+0x36/0x1c0
[  366.995998]  ? out_of_memory+0x974/0x1430
[  367.000152]  ? lock_downgrade+0x900/0x900
[  367.004308]  ? check_preemption_disabled+0x48/0x280
[  367.009321]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  367.014241]  ? kasan_check_read+0x11/0x20
[  367.018389]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.023680]  ? rcu_softirq_qs+0x20/0x20
[  367.027666]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.033230]  ? oom_evaluate_task+0x302/0x540
[  367.037646]  out_of_memory+0xa84/0x1430
[  367.041622]  ? oom_killer_disable+0x3a0/0x3a0
[  367.046117]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  367.051056]  ? __ww_mutex_check_waiters+0x160/0x160
[  367.056084]  __alloc_pages_slowpath+0x2354/0x2e10
[  367.060946]  ? warn_alloc+0x120/0x120
[  367.064739]  ? mark_held_locks+0x130/0x130
[  367.068998]  ? find_get_entry+0xaae/0x1120
[  367.073267]  ? filemap_map_pages+0x1a20/0x1a20
[  367.077857]  ? zap_class+0x640/0x640
[  367.081574]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.087108]  ? check_preemption_disabled+0x48/0x280
[  367.092133]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.097664]  ? should_fail+0x22d/0xd01
[  367.101565]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  367.106673]  ? zap_class+0x640/0x640
[  367.110407]  ? __lock_is_held+0xb5/0x140
[  367.114476]  ? mark_held_locks+0x130/0x130
[  367.118727]  ? lock_release+0xa00/0xa00
[  367.122735]  ? perf_trace_sched_process_exec+0x860/0x860
[  367.128187]  ? xa_load+0x2ba/0x460
[  367.131729]  ? lock_downgrade+0x900/0x900
[  367.135883]  ? __might_sleep+0x95/0x190
[  367.139892]  __alloc_pages_nodemask+0xa80/0xde0
[  367.144574]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  367.149609]  ? __page_cache_alloc+0x191/0x5c0
[  367.154099]  ? xa_load+0x2e1/0x460
[  367.157646]  ? xa_clear_mark+0x40/0x40
[  367.161530]  ? zap_class+0x640/0x640
[  367.165242]  ? zap_class+0x640/0x640
[  367.168947]  ? zap_class+0x640/0x640
[  367.172657]  ? __do_page_cache_readahead+0x663/0x810
[  367.177758]  ? find_held_lock+0x36/0x1c0
[  367.181823]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  367.187387]  alloc_pages_current+0x173/0x350
[  367.191800]  __page_cache_alloc+0x38c/0x5c0
[  367.196118]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  367.201046]  ? kasan_check_read+0x11/0x20
[  367.205240]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.210526]  ? generic_perform_write+0x6a0/0x6a0
[  367.215299]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.220832]  ? check_preemption_disabled+0x48/0x280
[  367.225868]  filemap_fault+0x1595/0x25f0
[  367.229943]  ? __lock_page_or_retry+0xa00/0xa00
[  367.234616]  ? mark_held_locks+0x130/0x130
[  367.238859]  ? filemap_map_pages+0xd6b/0x1a20
[  367.243355]  ? lock_downgrade+0x900/0x900
[  367.247518]  ? check_preemption_disabled+0x48/0x280
[  367.252558]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  367.257491]  ? kasan_check_read+0x11/0x20
[  367.261651]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.266940]  ? rcu_softirq_qs+0x20/0x20
[  367.270925]  ? filemap_map_pages+0xd92/0x1a20
[  367.275462]  ? find_get_entries_tag+0x1400/0x1400
[  367.280322]  ? debug_object_destroy+0x2b0/0x2b0
[  367.285006]  ? lock_pi_update_atomic+0x150/0x150
[  367.289766]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.295315]  ? lock_acquire+0x1ed/0x520
[  367.299287]  ? ext4_filemap_fault+0x7a/0xad
[  367.303616]  ? lock_release+0xa00/0xa00
[  367.307585]  ? perf_trace_sched_process_exec+0x860/0x860
[  367.313040]  ? print_usage_bug+0xc0/0xc0
[  367.317103]  ? print_usage_bug+0xc0/0xc0
[  367.321185]  ? down_read+0x8d/0x120
[  367.324818]  ? ext4_filemap_fault+0x7a/0xad
[  367.329137]  ? __down_interruptible+0x700/0x700
[  367.333810]  ext4_filemap_fault+0x82/0xad
[  367.337957]  __do_fault+0x100/0x6b0
[  367.341605]  ? pmd_devmap_trans_unstable+0x220/0x220
[  367.346739]  ? mark_held_locks+0x130/0x130
[  367.351019]  ? mark_held_locks+0x130/0x130
[  367.355271]  ? debug_smp_processor_id+0x1c/0x20
[  367.359952]  ? perf_trace_lock+0x14d/0x7a0
[  367.364203]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.369744]  __handle_mm_fault+0x3ea0/0x5be0
[  367.374166]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  367.379014]  ? lock_is_held_type+0x210/0x210
[  367.383458]  ? ksys_dup3+0x680/0x680
[  367.387188]  ? zap_class+0x640/0x640
[  367.390900]  ? zap_class+0x640/0x640
[  367.394610]  ? __x64_sys_futex+0x53e/0x6a0
[  367.398845]  ? find_held_lock+0x36/0x1c0
[  367.402912]  ? handle_mm_fault+0x42a/0xc70
[  367.407152]  ? lock_downgrade+0x900/0x900
[  367.411331]  ? check_preemption_disabled+0x48/0x280
[  367.416364]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  367.421291]  ? kasan_check_read+0x11/0x20
[  367.425440]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.430733]  ? rcu_softirq_qs+0x20/0x20
[  367.434711]  ? trace_hardirqs_off_caller+0x310/0x310
[  367.439814]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.445351]  ? check_preemption_disabled+0x48/0x280
[  367.450379]  handle_mm_fault+0x54f/0xc70
[  367.454446]  ? __handle_mm_fault+0x5be0/0x5be0
[  367.459036]  ? find_vma+0x34/0x190
[  367.462581]  __do_page_fault+0x5e8/0xe60
[  367.466644]  ? trace_hardirqs_off+0xb8/0x310
[  367.471082]  do_page_fault+0xf2/0x7e0
[  367.474916]  ? vmalloc_sync_all+0x30/0x30
[  367.479065]  ? error_entry+0x70/0xd0
[  367.482810]  ? trace_hardirqs_off_caller+0xbb/0x310
[  367.487822]  ? trace_hardirqs_on_caller+0xc0/0x310
[  367.492749]  ? syscall_return_slowpath+0x5e0/0x5e0
[  367.497681]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  367.502524]  ? trace_hardirqs_on_caller+0x310/0x310
[  367.507552]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  367.513016]  ? prepare_exit_to_usermode+0x291/0x3b0
[  367.518031]  ? page_fault+0x8/0x30
[  367.521600]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  367.526448]  ? page_fault+0x8/0x30
[  367.530003]  page_fault+0x1e/0x30
[  367.533461] RIP: 0033:0x40f9c0
[  367.536667] Code: Bad RIP value.
[  367.540028] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  367.545388] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  367.552674] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  367.559943] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  367.567212] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  367.574482] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  367.581773] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  367.581779] warn_alloc_show_mem: 1 callbacks suppressed
[  367.581786] Mem-Info:
[  367.588538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  367.593914] active_anon:54833 inactive_anon:712 isolated_anon:0
[  367.593914]  active_file:11 inactive_file:12 isolated_file:0
[  367.593914]  unevictable:0 dirty:0 writeback:0 unstable:0
[  367.593914]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  367.593914]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  367.593914]  free:13768 free_pcp:742 free_cma:0
[  367.596290] Call Trace:
[  367.605676] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  367.638555]  dump_stack+0x244/0x39d
[  367.641144] 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
[  367.668965]  ? dump_stack_print_info.cold.1+0x20/0x20
[  367.672567] lowmem_reserve[]: 0 2818 6321 6321
[  367.698675]  warn_alloc.cold.116+0xb7/0x1bd
[  367.703831] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  367.708409]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  367.712718] lowmem_reserve[]: 0 0 3503 3503
[  367.740482]  ? lock_downgrade+0x900/0x900
[  367.745293] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  367.749611]  ? trace_hardirqs_off+0xb8/0x310
[  367.753757] lowmem_reserve[]: 0 0 0 0
[  367.783070]  ? trace_hardirqs_off+0xb8/0x310
[  367.787464] 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
[  367.791284]  __alloc_pages_slowpath+0x26e8/0x2e10
[  367.795659] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  367.809227]  ? warn_alloc+0x120/0x120
[  367.814054] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  367.829826]  ? print_usage_bug+0xc0/0xc0
[  367.833623] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  367.848955]  ? warn_alloc+0x120/0x120
[  367.853014] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  367.861845]  ? warn_alloc+0x120/0x120
[  367.865621] 782 total pagecache pages
[  367.874192]  ? print_usage_bug+0xc0/0xc0
[  367.877981] 0 pages in swap cache
[  367.881781]  ? print_usage_bug+0xc0/0xc0
[  367.885828] Swap cache stats: add 0, delete 0, find 0/0
[  367.889287]  ? __lock_acquire+0x62f/0x4c20
[  367.893315] Free swap  = 0kB
[  367.898676]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.902885] Total swap = 0kB
[  367.905897]  ? should_fail+0x22d/0xd01
[  367.911422] 1965979 pages RAM
[  367.914433]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  367.918294] 0 pages HighMem/MovableOnly
[  367.921391]  ? __lock_acquire+0x62f/0x4c20
[  367.926466] 342853 pages reserved
[  367.930428]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  367.934637] 0 pages cma reserved
[  367.938097]  ? __lock_acquire+0x62f/0x4c20
[  367.943276] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  367.946532]  ? should_fail+0x22d/0xd01
[  367.946546]  ? find_held_lock+0x36/0x1c0
[  367.950848] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  367.957269]  ? mark_held_locks+0x130/0x130
[  367.961124] syz-fuzzer cpuset=/ mems_allowed=0
[  367.965173]  ? mark_held_locks+0x130/0x130
[  367.988436]  ? zap_class+0x640/0x640
[  367.992149]  ? zap_class+0x640/0x640
[  367.995859]  ? print_usage_bug+0xc0/0xc0
[  367.999926]  ? do_raw_spin_unlock+0xa7/0x330
[  368.004330]  ? zap_class+0x640/0x640
[  368.008041]  ? print_usage_bug+0xc0/0xc0
[  368.012096]  ? wq_watchdog_touch+0x9c/0xfe
[  368.016329]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.021870]  ? check_preemption_disabled+0x48/0x280
[  368.026894]  ? __lock_is_held+0xb5/0x140
[  368.030957]  __alloc_pages_nodemask+0xa80/0xde0
[  368.035625]  ? zap_class+0x640/0x640
[  368.039344]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  368.044387]  ? find_held_lock+0x36/0x1c0
[  368.048474]  ? ____cache_alloc_node+0x1c7/0x1e0
[  368.053141]  ? lock_downgrade+0x900/0x900
[  368.057321]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.062860]  cache_grow_begin+0xa5/0x8c0
[  368.066919]  ? do_raw_spin_unlock+0xa7/0x330
[  368.071375]  fallback_alloc+0x204/0x2e0
[  368.075365]  ____cache_alloc_node+0x1c7/0x1e0
[  368.079863]  kmem_cache_alloc_node+0xe3/0x730
[  368.084362]  ? ipv6_get_ifaddr+0x42e/0x620
[  368.088609]  __alloc_skb+0x119/0x770
[  368.092331]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.097606]  ? netdev_alloc_frag+0x1f0/0x1f0
[  368.102036]  ? lock_downgrade+0x900/0x900
[  368.106208]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.111743]  ? refcount_sub_and_test_checked+0x203/0x310
[  368.117220]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  368.122702]  ? addrconf_rs_timer+0x690/0x690
[  368.127118]  ndisc_alloc_skb+0x144/0x340
[  368.131178]  ndisc_send_rs+0x331/0x6e0
[  368.135067]  addrconf_rs_timer+0x314/0x690
[  368.139301]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.143538]  call_timer_fn+0x272/0x920
[  368.147445]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.151691]  ? process_timeout+0x40/0x40
[  368.155763]  ? __run_timers+0x7da/0xc70
[  368.159738]  ? _raw_spin_unlock_irq+0x27/0x80
[  368.164229]  ? _raw_spin_unlock_irq+0x27/0x80
[  368.168718]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.172949]  ? lockdep_hardirqs_on+0x296/0x5b0
[  368.177546]  ? trace_hardirqs_on+0xbd/0x310
[  368.181879]  ? kasan_check_read+0x11/0x20
[  368.186024]  ? __run_timers+0x7da/0xc70
[  368.190002]  ? trace_hardirqs_off_caller+0x310/0x310
[  368.195107]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.199364]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.203622]  __run_timers+0x7e5/0xc70
[  368.207493]  ? timer_fixup_init+0x70/0x70
[  368.211639]  ? _raw_spin_unlock_irq+0x27/0x80
[  368.216127]  ? _raw_spin_unlock_irq+0x27/0x80
[  368.220618]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  368.225198]  ? trace_hardirqs_on+0xbd/0x310
[  368.229528]  ? kasan_check_read+0x11/0x20
[  368.233678]  ? finish_task_switch+0x1f4/0x910
[  368.238172]  ? trace_hardirqs_off_caller+0x310/0x310
[  368.243308]  ? compat_start_thread+0x80/0x80
[  368.247732]  ? pvclock_read_flags+0x160/0x160
[  368.252219]  ? __switch_to_asm+0x34/0x70
[  368.256328]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.261896]  ? check_preemption_disabled+0x48/0x280
[  368.266937]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  368.272472]  ? rcu_pm_notify+0xc0/0xc0
[  368.276355]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.281885]  ? check_preemption_disabled+0x48/0x280
[  368.286899]  run_timer_softirq+0x52/0xb0
[  368.290953]  ? rcu_read_lock_sched_held+0x14f/0x180
[  368.295961]  __do_softirq+0x308/0xb7e
[  368.299777]  ? retint_kernel+0x2d/0x2d
[  368.303692]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  368.308790]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  368.314233]  ? trace_hardirqs_on+0x310/0x310
[  368.318666]  ? schedule+0x108/0x460
[  368.322310]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  368.327069]  ? trace_hardirqs_off+0xb8/0x310
[  368.331490]  ? smpboot_thread_fn+0x68b/0xa00
[  368.335911]  ? trace_hardirqs_on+0x310/0x310
[  368.340385]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.345949]  ? check_preemption_disabled+0x48/0x280
[  368.350965]  ? takeover_tasklets+0xa90/0xa90
[  368.355398]  run_ksoftirqd+0x5e/0x100
[  368.359197]  smpboot_thread_fn+0x68b/0xa00
[  368.363439]  ? sort_range+0x30/0x30
[  368.367070]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  368.372174]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.377726]  ? __kthread_parkme+0xfb/0x1a0
[  368.381967]  ? sort_range+0x30/0x30
[  368.385603]  kthread+0x35a/0x440
[  368.388969]  ? kthread_stop+0x900/0x900
[  368.392947]  ret_from_fork+0x3a/0x50
[  368.396703] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  368.396770] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  368.403630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  368.403635] Call Trace:
[  368.403641]  <IRQ>
[  368.403657]  dump_stack+0x244/0x39d
[  368.403675]  ? dump_stack_print_info.cold.1+0x20/0x20
[  368.410235] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  368.419521]  warn_alloc.cold.116+0xb7/0x1bd
[  368.422075] ksoftirqd/0 cpuset=/ mems_allowed=0
[  368.424229]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  368.457103]  ? lock_downgrade+0x900/0x900
[  368.461270]  ? trace_hardirqs_off+0xb8/0x310
[  368.465728]  ? trace_hardirqs_off+0xb8/0x310
[  368.470135]  __alloc_pages_slowpath+0x26e8/0x2e10
[  368.475002]  ? warn_alloc+0x120/0x120
[  368.478812]  ? print_usage_bug+0xc0/0xc0
[  368.482869]  ? warn_alloc+0x120/0x120
[  368.486667]  ? warn_alloc+0x120/0x120
[  368.490460]  ? print_usage_bug+0xc0/0xc0
[  368.494527]  ? kvm_clock_read+0x18/0x30
[  368.498534]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  368.503547]  ? print_usage_bug+0xc0/0xc0
[  368.507619]  ? __lock_acquire+0x62f/0x4c20
[  368.511856]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.517427]  ? should_fail+0x22d/0xd01
[  368.521343]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.526617]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  368.531811]  ? __lock_acquire+0x62f/0x4c20
[  368.536054]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  368.541158]  ? __lock_acquire+0x62f/0x4c20
[  368.545399]  ? should_fail+0x22d/0xd01
[  368.549283]  ? rcu_irq_exit+0x1a2/0x390
[  368.553260]  ? mark_held_locks+0x130/0x130
[  368.557491]  ? mark_held_locks+0x130/0x130
[  368.561738]  ? mark_held_locks+0xc7/0x130
[  368.565882]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  368.570892]  ? zap_class+0x640/0x640
[  368.574612]  ? print_usage_bug+0xc0/0xc0
[  368.578704]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.584242]  ? check_preemption_disabled+0x48/0x280
[  368.589263]  ? __lock_is_held+0xb5/0x140
[  368.593330]  __alloc_pages_nodemask+0xa80/0xde0
[  368.598007]  ? zap_class+0x640/0x640
[  368.601731]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  368.606757]  ? find_held_lock+0x36/0x1c0
[  368.610847]  ? ____cache_alloc_node+0x1c7/0x1e0
[  368.615514]  ? lock_downgrade+0x900/0x900
[  368.619663]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.625206]  cache_grow_begin+0xa5/0x8c0
[  368.629261]  ? do_raw_spin_unlock+0xa7/0x330
[  368.633690]  fallback_alloc+0x204/0x2e0
[  368.637668]  ____cache_alloc_node+0x1c7/0x1e0
[  368.642183]  kmem_cache_alloc_node+0xe3/0x730
[  368.646685]  ? ipv6_get_ifaddr+0x42e/0x620
[  368.650921]  __alloc_skb+0x119/0x770
[  368.654628]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.659912]  ? netdev_alloc_frag+0x1f0/0x1f0
[  368.664600]  ? lock_downgrade+0x900/0x900
[  368.668750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.674289]  ? refcount_sub_and_test_checked+0x203/0x310
[  368.679739]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  368.685194]  ? addrconf_rs_timer+0x690/0x690
[  368.689607]  ndisc_alloc_skb+0x144/0x340
[  368.693743]  ndisc_send_rs+0x331/0x6e0
[  368.697663]  addrconf_rs_timer+0x314/0x690
[  368.701896]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.706133]  call_timer_fn+0x272/0x920
[  368.710038]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.714283]  ? process_timeout+0x40/0x40
[  368.718341]  ? mark_held_locks+0xc7/0x130
[  368.722484]  ? _raw_spin_unlock_irq+0x27/0x80
[  368.726981]  ? _raw_spin_unlock_irq+0x27/0x80
[  368.731521]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.735771]  ? lockdep_hardirqs_on+0x296/0x5b0
[  368.740352]  ? trace_hardirqs_on+0xbd/0x310
[  368.744699]  ? kasan_check_read+0x11/0x20
[  368.748844]  ? __run_timers+0x7da/0xc70
[  368.752817]  ? trace_hardirqs_off_caller+0x310/0x310
[  368.757921]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.762160]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.766389]  __run_timers+0x7e5/0xc70
[  368.770210]  ? timer_fixup_init+0x70/0x70
[  368.774353]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  368.779414]  ? zap_class+0x640/0x640
[  368.783132]  ? print_usage_bug+0xc0/0xc0
[  368.787199]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  368.792413]  ? find_held_lock+0x36/0x1c0
[  368.796480]  ? zap_class+0x640/0x640
[  368.800719]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.806263]  ? check_preemption_disabled+0x48/0x280
[  368.811743]  ? __lock_is_held+0xb5/0x140
[  368.815809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.821342]  ? check_preemption_disabled+0x48/0x280
[  368.826357]  run_timer_softirq+0x52/0xb0
[  368.830441]  ? rcu_read_lock_sched_held+0x14f/0x180
[  368.835452]  __do_softirq+0x308/0xb7e
[  368.839250]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  368.843736]  ? lock_downgrade+0x900/0x900
[  368.847895]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  368.853002]  ? pvclock_read_flags+0x160/0x160
[  368.857509]  ? lapic_next_event+0x5a/0x90
[  368.861682]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.867244]  ? kvm_clock_read+0x18/0x30
[  368.871213]  ? kvm_sched_clock_read+0x9/0x20
[  368.875637]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.881182]  ? check_preemption_disabled+0x48/0x280
[  368.886202]  irq_exit+0x17f/0x1c0
[  368.889688]  smp_apic_timer_interrupt+0x1cb/0x760
[  368.894558]  ? smp_call_function_single_interrupt+0x159/0x650
[  368.900472]  ? smp_call_function_single_interrupt+0x650/0x650
[  368.906366]  ? interrupt_entry+0xb5/0xc0
[  368.910441]  ? trace_hardirqs_off_caller+0xbb/0x310
[  368.915505]  ? trace_hardirqs_off_caller+0xbb/0x310
[  368.920534]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.925381]  ? trace_hardirqs_on_caller+0x310/0x310
[  368.930393]  ? trace_hardirqs_on_caller+0x310/0x310
[  368.935409]  ? task_prio+0x50/0x50
[  368.938963]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.944505]  ? check_preemption_disabled+0x48/0x280
[  368.949521]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.954365]  apic_timer_interrupt+0xf/0x20
[  368.958585]  </IRQ>
[  368.960818] RIP: 0010:dump_stack+0x358/0x39d
[  368.965235] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  368.984131] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  368.991842] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  368.999104] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  369.006364] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  369.013623] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  369.020879] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  369.028170]  ? dump_stack+0x34f/0x39d
[  369.032003]  ? dump_stack_print_info.cold.1+0x20/0x20
[  369.037189]  ? mark_held_locks+0x130/0x130
[  369.041417]  ? mark_held_locks+0x130/0x130
[  369.045714]  dump_header+0x27b/0xf72
[  369.049430]  ? pagefault_out_of_memory+0x197/0x197
[  369.054377]  ? __lock_acquire+0x62f/0x4c20
[  369.058607]  ? percpu_ref_get_many+0x240/0x240
[  369.063182]  ? print_usage_bug+0xc0/0xc0
[  369.067252]  ? zap_class+0x640/0x640
[  369.071000]  ? print_usage_bug+0xc0/0xc0
[  369.075060]  ? print_usage_bug+0xc0/0xc0
[  369.079115]  ? zap_class+0x640/0x640
[  369.082840]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.088402]  ? find_held_lock+0x36/0x1c0
[  369.092482]  ? mark_held_locks+0xc7/0x130
[  369.096634]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  369.101732]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  369.106847]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  369.111441]  ? trace_hardirqs_on+0xbd/0x310
[  369.115753]  ? kasan_check_read+0x11/0x20
[  369.119906]  ? ___ratelimit+0x3b4/0x672
[  369.123918]  ? trace_hardirqs_off_caller+0x310/0x310
[  369.129023]  ? trace_hardirqs_on+0x310/0x310
[  369.133429]  ? lock_downgrade+0x900/0x900
[  369.137588]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  369.142686]  ? ___ratelimit+0x3b9/0x672
[  369.146657]  ? idr_get_free+0xf70/0xf70
[  369.150644]  ? find_held_lock+0x36/0x1c0
[  369.154708]  oom_kill_process.cold.27+0x10/0x903
[  369.159457]  ? zap_class+0x640/0x640
[  369.163192]  ? check_preemption_disabled+0x48/0x280
[  369.168206]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  369.173128]  ? kasan_check_read+0x11/0x20
[  369.177303]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.182639]  ? oom_evaluate_task+0x540/0x540
[  369.187066]  ? find_held_lock+0x36/0x1c0
[  369.191133]  ? out_of_memory+0x974/0x1430
[  369.195282]  ? lock_downgrade+0x900/0x900
[  369.199424]  ? check_preemption_disabled+0x48/0x280
[  369.204436]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  369.209360]  ? kasan_check_read+0x11/0x20
[  369.213522]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.218796]  ? rcu_softirq_qs+0x20/0x20
[  369.222790]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.228325]  ? oom_evaluate_task+0x302/0x540
[  369.232736]  out_of_memory+0xa84/0x1430
[  369.236724]  ? oom_killer_disable+0x3a0/0x3a0
[  369.241254]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  369.246198]  ? __ww_mutex_check_waiters+0x160/0x160
[  369.251232]  __alloc_pages_slowpath+0x2354/0x2e10
[  369.256106]  ? warn_alloc+0x120/0x120
[  369.259897]  ? mark_held_locks+0x130/0x130
[  369.264137]  ? find_get_entry+0xaae/0x1120
[  369.268389]  ? filemap_map_pages+0x1a20/0x1a20
[  369.272987]  ? zap_class+0x640/0x640
[  369.276726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.282267]  ? check_preemption_disabled+0x48/0x280
[  369.287287]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.292824]  ? should_fail+0x22d/0xd01
[  369.296709]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  369.301868]  ? zap_class+0x640/0x640
[  369.305626]  ? __lock_is_held+0xb5/0x140
[  369.309736]  ? mark_held_locks+0x130/0x130
[  369.313986]  ? lock_release+0xa00/0xa00
[  369.317978]  ? perf_trace_sched_process_exec+0x860/0x860
[  369.323432]  ? xa_load+0x2ba/0x460
[  369.327002]  ? lock_downgrade+0x900/0x900
[  369.331200]  ? __might_sleep+0x95/0x190
[  369.335175]  __alloc_pages_nodemask+0xa80/0xde0
[  369.339842]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  369.344871]  ? __page_cache_alloc+0x191/0x5c0
[  369.349376]  ? xa_load+0x2e1/0x460
[  369.352919]  ? xa_clear_mark+0x40/0x40
[  369.356810]  ? zap_class+0x640/0x640
[  369.360530]  ? zap_class+0x640/0x640
[  369.364270]  ? zap_class+0x640/0x640
[  369.367983]  ? __do_page_cache_readahead+0x663/0x810
[  369.373100]  ? find_held_lock+0x36/0x1c0
[  369.377164]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  369.382708]  alloc_pages_current+0x173/0x350
[  369.387117]  __page_cache_alloc+0x38c/0x5c0
[  369.391446]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  369.396371]  ? kasan_check_read+0x11/0x20
[  369.400531]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.405820]  ? generic_perform_write+0x6a0/0x6a0
[  369.410594]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.416127]  ? check_preemption_disabled+0x48/0x280
[  369.421150]  filemap_fault+0x1595/0x25f0
[  369.425238]  ? __lock_page_or_retry+0xa00/0xa00
[  369.429909]  ? mark_held_locks+0x130/0x130
[  369.434151]  ? filemap_map_pages+0xd6b/0x1a20
[  369.438645]  ? lock_downgrade+0x900/0x900
[  369.442799]  ? check_preemption_disabled+0x48/0x280
[  369.447871]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  369.452800]  ? kasan_check_read+0x11/0x20
[  369.456943]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.462229]  ? rcu_softirq_qs+0x20/0x20
[  369.466250]  ? filemap_map_pages+0xd92/0x1a20
[  369.470755]  ? find_get_entries_tag+0x1400/0x1400
[  369.475606]  ? debug_object_destroy+0x2b0/0x2b0
[  369.480307]  ? lock_pi_update_atomic+0x150/0x150
[  369.485081]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.490631]  ? lock_acquire+0x1ed/0x520
[  369.494617]  ? ext4_filemap_fault+0x7a/0xad
[  369.498975]  ? lock_release+0xa00/0xa00
[  369.502949]  ? perf_trace_sched_process_exec+0x860/0x860
[  369.508436]  ? print_usage_bug+0xc0/0xc0
[  369.512507]  ? print_usage_bug+0xc0/0xc0
[  369.516591]  ? down_read+0x8d/0x120
[  369.520238]  ? ext4_filemap_fault+0x7a/0xad
[  369.524567]  ? __down_interruptible+0x700/0x700
[  369.529275]  ext4_filemap_fault+0x82/0xad
[  369.533440]  __do_fault+0x100/0x6b0
[  369.537065]  ? pmd_devmap_trans_unstable+0x220/0x220
[  369.542164]  ? mark_held_locks+0x130/0x130
[  369.546423]  ? mark_held_locks+0x130/0x130
[  369.550712]  ? debug_smp_processor_id+0x1c/0x20
[  369.555424]  ? perf_trace_lock+0x14d/0x7a0
[  369.559660]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.565199]  __handle_mm_fault+0x3ea0/0x5be0
[  369.569629]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  369.574503]  ? lock_is_held_type+0x210/0x210
[  369.578927]  ? ksys_dup3+0x680/0x680
[  369.582662]  ? zap_class+0x640/0x640
[  369.586370]  ? zap_class+0x640/0x640
[  369.590077]  ? __x64_sys_futex+0x53e/0x6a0
[  369.594315]  ? find_held_lock+0x36/0x1c0
[  369.598377]  ? handle_mm_fault+0x42a/0xc70
[  369.602627]  ? lock_downgrade+0x900/0x900
[  369.606805]  ? check_preemption_disabled+0x48/0x280
[  369.611826]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  369.616761]  ? kasan_check_read+0x11/0x20
[  369.620909]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.626182]  ? rcu_softirq_qs+0x20/0x20
[  369.630149]  ? trace_hardirqs_off_caller+0x310/0x310
[  369.635250]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.640783]  ? check_preemption_disabled+0x48/0x280
[  369.645802]  handle_mm_fault+0x54f/0xc70
[  369.649869]  ? __handle_mm_fault+0x5be0/0x5be0
[  369.654490]  ? find_vma+0x34/0x190
[  369.658096]  __do_page_fault+0x5e8/0xe60
[  369.662210]  ? trace_hardirqs_off+0xb8/0x310
[  369.666644]  do_page_fault+0xf2/0x7e0
[  369.670635]  ? vmalloc_sync_all+0x30/0x30
[  369.674812]  ? error_entry+0x70/0xd0
[  369.678526]  ? trace_hardirqs_off_caller+0xbb/0x310
[  369.683535]  ? trace_hardirqs_on_caller+0xc0/0x310
[  369.688469]  ? syscall_return_slowpath+0x5e0/0x5e0
[  369.693451]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.698312]  ? trace_hardirqs_on_caller+0x310/0x310
[  369.703322]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  369.708780]  ? prepare_exit_to_usermode+0x291/0x3b0
[  369.713794]  ? page_fault+0x8/0x30
[  369.717337]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.722203]  ? page_fault+0x8/0x30
[  369.725750]  page_fault+0x1e/0x30
[  369.729213] RIP: 0033:0x40f9c0
[  369.732419] Code: Bad RIP value.
[  369.735790] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  369.741144] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  369.748411] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  369.755688] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  369.762951] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  369.770256] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  369.777552] warn_alloc_show_mem: 1 callbacks suppressed
[  369.777563] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  369.777564] Mem-Info:
[  369.777595] active_anon:54833 inactive_anon:712 isolated_anon:0
[  369.777595]  active_file:11 inactive_file:12 isolated_file:0
[  369.777595]  unevictable:0 dirty:0 writeback:0 unstable:0
[  369.777595]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  369.777595]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  369.777595]  free:13768 free_pcp:742 free_cma:0
[  369.782933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  369.789684] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  369.792088] Call Trace:
[  369.825481] 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
[  369.834829]  dump_stack+0x244/0x39d
[  369.862382] lowmem_reserve[]: 0 2818 6321 6321
[  369.864954]  ? dump_stack_print_info.cold.1+0x20/0x20
[  369.891047] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  369.894683]  warn_alloc.cold.116+0xb7/0x1bd
[  369.899239] lowmem_reserve[]: 0 0 3503 3503
[  369.904416]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  369.932144] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  369.936507]  ? lock_downgrade+0x900/0x900
[  369.940813] lowmem_reserve[]: 0 0 0 0
[  369.945646]  ? trace_hardirqs_off+0xb8/0x310
[  369.974864] 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
[  369.979008]  ? trace_hardirqs_off+0xb8/0x310
[  369.982782] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  369.987181]  __alloc_pages_slowpath+0x26e8/0x2e10
[  370.000673] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  370.005108]  ? warn_alloc+0x120/0x120
[  370.020785] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  370.025608]  ? print_usage_bug+0xc0/0xc0
[  370.040935] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  370.044721]  ? warn_alloc+0x120/0x120
[  370.053530] 782 total pagecache pages
[  370.057578]  ? warn_alloc+0x120/0x120
[  370.066147] 0 pages in swap cache
[  370.069931]  ? print_usage_bug+0xc0/0xc0
[  370.073710] Swap cache stats: add 0, delete 0, find 0/0
[  370.077501]  ? print_usage_bug+0xc0/0xc0
[  370.080928] Free swap  = 0kB
[  370.084981]  ? __lock_acquire+0x62f/0x4c20
[  370.090353] Total swap = 0kB
[  370.094429]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.097436] 1965979 pages RAM
[  370.101674]  ? should_fail+0x22d/0xd01
[  370.104667] 0 pages HighMem/MovableOnly
[  370.104676] 342853 pages reserved
[  370.110209]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  370.113289] 0 pages cma reserved
[  370.117168]  ? __lock_acquire+0x62f/0x4c20
[  370.121185] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  370.124569]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  370.129732] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  370.133019]  ? __lock_acquire+0x62f/0x4c20
[  370.137231] syz-fuzzer cpuset=/ mems_allowed=0
[  370.143718]  ? should_fail+0x22d/0xd01
[  370.171699]  ? find_held_lock+0x36/0x1c0
[  370.175810]  ? mark_held_locks+0x130/0x130
[  370.180044]  ? mark_held_locks+0x130/0x130
[  370.184281]  ? zap_class+0x640/0x640
[  370.188007]  ? mark_held_locks+0xc7/0x130
[  370.192150]  ? do_raw_spin_unlock+0xa7/0x330
[  370.196555]  ? zap_class+0x640/0x640
[  370.200270]  ? print_usage_bug+0xc0/0xc0
[  370.204329]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.209873]  ? check_preemption_disabled+0x48/0x280
[  370.214890]  ? __lock_is_held+0xb5/0x140
[  370.218951]  __alloc_pages_nodemask+0xa80/0xde0
[  370.223632]  ? zap_class+0x640/0x640
[  370.227342]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  370.232380]  ? find_held_lock+0x36/0x1c0
[  370.236448]  ? ____cache_alloc_node+0x1c7/0x1e0
[  370.241115]  ? lock_downgrade+0x900/0x900
[  370.245273]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.250809]  cache_grow_begin+0xa5/0x8c0
[  370.254866]  ? do_raw_spin_unlock+0xa7/0x330
[  370.259284]  fallback_alloc+0x204/0x2e0
[  370.263272]  ____cache_alloc_node+0x1c7/0x1e0
[  370.267771]  kmem_cache_alloc_node+0xe3/0x730
[  370.272331]  ? ipv6_get_ifaddr+0x42e/0x620
[  370.276573]  __alloc_skb+0x119/0x770
[  370.280295]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.285572]  ? netdev_alloc_frag+0x1f0/0x1f0
[  370.289976]  ? lock_downgrade+0x900/0x900
[  370.294134]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.299669]  ? refcount_sub_and_test_checked+0x203/0x310
[  370.305127]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  370.310603]  ? addrconf_rs_timer+0x690/0x690
[  370.315035]  ndisc_alloc_skb+0x144/0x340
[  370.319105]  ndisc_send_rs+0x331/0x6e0
[  370.323029]  addrconf_rs_timer+0x314/0x690
[  370.327289]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.331536]  call_timer_fn+0x272/0x920
[  370.335437]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.339676]  ? process_timeout+0x40/0x40
[  370.343743]  ? __run_timers+0x7da/0xc70
[  370.347743]  ? _raw_spin_unlock_irq+0x27/0x80
[  370.352235]  ? _raw_spin_unlock_irq+0x27/0x80
[  370.356736]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.360975]  ? lockdep_hardirqs_on+0x296/0x5b0
[  370.365590]  ? trace_hardirqs_on+0xbd/0x310
[  370.369909]  ? kasan_check_read+0x11/0x20
[  370.374069]  ? __run_timers+0x7da/0xc70
[  370.378058]  ? trace_hardirqs_off_caller+0x310/0x310
[  370.383168]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.387422]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.391660]  __run_timers+0x7e5/0xc70
[  370.395473]  ? timer_fixup_init+0x70/0x70
[  370.399620]  ? _raw_spin_unlock_irq+0x27/0x80
[  370.404130]  ? _raw_spin_unlock_irq+0x27/0x80
[  370.408628]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  370.413227]  ? trace_hardirqs_on+0xbd/0x310
[  370.417567]  ? kasan_check_read+0x11/0x20
[  370.421720]  ? finish_task_switch+0x1f4/0x910
[  370.426217]  ? trace_hardirqs_off_caller+0x310/0x310
[  370.431318]  ? compat_start_thread+0x80/0x80
[  370.435750]  ? pvclock_read_flags+0x160/0x160
[  370.440246]  ? __switch_to_asm+0x34/0x70
[  370.444330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.449865]  ? check_preemption_disabled+0x48/0x280
[  370.454891]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  370.460428]  ? rcu_pm_notify+0xc0/0xc0
[  370.464322]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.469857]  ? check_preemption_disabled+0x48/0x280
[  370.474872]  run_timer_softirq+0x52/0xb0
[  370.478936]  ? rcu_read_lock_sched_held+0x14f/0x180
[  370.483947]  __do_softirq+0x308/0xb7e
[  370.487744]  ? retint_kernel+0x2d/0x2d
[  370.491632]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  370.496745]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  370.502192]  ? trace_hardirqs_on+0x310/0x310
[  370.506621]  ? schedule+0x108/0x460
[  370.510257]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  370.515024]  ? trace_hardirqs_off+0xb8/0x310
[  370.519441]  ? smpboot_thread_fn+0x68b/0xa00
[  370.523856]  ? trace_hardirqs_on+0x310/0x310
[  370.528304]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.533844]  ? check_preemption_disabled+0x48/0x280
[  370.538862]  ? takeover_tasklets+0xa90/0xa90
[  370.543279]  run_ksoftirqd+0x5e/0x100
[  370.547090]  smpboot_thread_fn+0x68b/0xa00
[  370.551323]  ? sort_range+0x30/0x30
[  370.554951]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  370.560051]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.565587]  ? __kthread_parkme+0xfb/0x1a0
[  370.569862]  ? sort_range+0x30/0x30
[  370.573489]  kthread+0x35a/0x440
[  370.576859]  ? kthread_stop+0x900/0x900
[  370.580828]  ret_from_fork+0x3a/0x50
[  370.584560] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  370.584620] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  370.591481] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  370.591486] Call Trace:
[  370.591493]  <IRQ>
[  370.591509]  dump_stack+0x244/0x39d
[  370.591527]  ? dump_stack_print_info.cold.1+0x20/0x20
[  370.598134] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  370.607436]  warn_alloc.cold.116+0xb7/0x1bd
[  370.609987] ksoftirqd/0 cpuset=/ mems_allowed=0
[  370.612132]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  370.645060]  ? lock_downgrade+0x900/0x900
[  370.649220]  ? trace_hardirqs_off+0xb8/0x310
[  370.653647]  ? trace_hardirqs_off+0xb8/0x310
[  370.658064]  __alloc_pages_slowpath+0x26e8/0x2e10
[  370.662934]  ? warn_alloc+0x120/0x120
[  370.666736]  ? print_usage_bug+0xc0/0xc0
[  370.670815]  ? warn_alloc+0x120/0x120
[  370.674632]  ? warn_alloc+0x120/0x120
[  370.678433]  ? print_usage_bug+0xc0/0xc0
[  370.682492]  ? kvm_clock_read+0x18/0x30
[  370.686468]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  370.691482]  ? print_usage_bug+0xc0/0xc0
[  370.695542]  ? __lock_acquire+0x62f/0x4c20
[  370.699781]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.705329]  ? should_fail+0x22d/0xd01
[  370.709216]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.714525]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  370.719625]  ? __lock_acquire+0x62f/0x4c20
[  370.723864]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  370.728963]  ? __lock_acquire+0x62f/0x4c20
[  370.733197]  ? should_fail+0x22d/0xd01
[  370.737081]  ? rcu_irq_exit+0x1a2/0x390
[  370.741066]  ? mark_held_locks+0x130/0x130
[  370.745307]  ? mark_held_locks+0x130/0x130
[  370.749558]  ? mark_held_locks+0xc7/0x130
[  370.753737]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  370.758752]  ? zap_class+0x640/0x640
[  370.762463]  ? print_usage_bug+0xc0/0xc0
[  370.766557]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.772094]  ? check_preemption_disabled+0x48/0x280
[  370.777120]  ? __lock_is_held+0xb5/0x140
[  370.781199]  __alloc_pages_nodemask+0xa80/0xde0
[  370.785863]  ? zap_class+0x640/0x640
[  370.789573]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  370.794596]  ? find_held_lock+0x36/0x1c0
[  370.799192]  ? ____cache_alloc_node+0x1c7/0x1e0
[  370.803858]  ? lock_downgrade+0x900/0x900
[  370.808026]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.813565]  cache_grow_begin+0xa5/0x8c0
[  370.817621]  ? do_raw_spin_unlock+0xa7/0x330
[  370.822031]  fallback_alloc+0x204/0x2e0
[  370.826015]  ____cache_alloc_node+0x1c7/0x1e0
[  370.830509]  kmem_cache_alloc_node+0xe3/0x730
[  370.835025]  ? ipv6_get_ifaddr+0x42e/0x620
[  370.839281]  __alloc_skb+0x119/0x770
[  370.843010]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.848487]  ? netdev_alloc_frag+0x1f0/0x1f0
[  370.852890]  ? lock_downgrade+0x900/0x900
[  370.857039]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.862567]  ? refcount_sub_and_test_checked+0x203/0x310
[  370.868037]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  370.873520]  ? addrconf_rs_timer+0x690/0x690
[  370.877934]  ndisc_alloc_skb+0x144/0x340
[  370.882003]  ndisc_send_rs+0x331/0x6e0
[  370.885895]  addrconf_rs_timer+0x314/0x690
[  370.890143]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.894411]  call_timer_fn+0x272/0x920
[  370.898310]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.902557]  ? process_timeout+0x40/0x40
[  370.906637]  ? mark_held_locks+0xc7/0x130
[  370.910786]  ? _raw_spin_unlock_irq+0x27/0x80
[  370.915280]  ? _raw_spin_unlock_irq+0x27/0x80
[  370.919774]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.924011]  ? lockdep_hardirqs_on+0x296/0x5b0
[  370.928592]  ? trace_hardirqs_on+0xbd/0x310
[  370.932922]  ? kasan_check_read+0x11/0x20
[  370.937064]  ? __run_timers+0x7da/0xc70
[  370.941035]  ? trace_hardirqs_off_caller+0x310/0x310
[  370.946136]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.950388]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.954631]  __run_timers+0x7e5/0xc70
[  370.958437]  ? timer_fixup_init+0x70/0x70
[  370.962587]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  370.967626]  ? zap_class+0x640/0x640
[  370.971341]  ? print_usage_bug+0xc0/0xc0
[  370.975404]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  370.980607]  ? find_held_lock+0x36/0x1c0
[  370.984673]  ? zap_class+0x640/0x640
[  370.988410]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.993976]  ? check_preemption_disabled+0x48/0x280
[  370.999019]  ? __lock_is_held+0xb5/0x140
[  371.003101]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.008642]  ? check_preemption_disabled+0x48/0x280
[  371.013661]  run_timer_softirq+0x52/0xb0
[  371.017723]  ? rcu_read_lock_sched_held+0x14f/0x180
[  371.022768]  __do_softirq+0x308/0xb7e
[  371.026593]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  371.031083]  ? lock_downgrade+0x900/0x900
[  371.035231]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  371.040343]  ? pvclock_read_flags+0x160/0x160
[  371.044839]  ? lapic_next_event+0x5a/0x90
[  371.049044]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.054597]  ? kvm_clock_read+0x18/0x30
[  371.058565]  ? kvm_sched_clock_read+0x9/0x20
[  371.062969]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.068517]  ? check_preemption_disabled+0x48/0x280
[  371.073566]  irq_exit+0x17f/0x1c0
[  371.077023]  smp_apic_timer_interrupt+0x1cb/0x760
[  371.081862]  ? smp_call_function_single_interrupt+0x159/0x650
[  371.087741]  ? smp_call_function_single_interrupt+0x650/0x650
[  371.093628]  ? interrupt_entry+0xb5/0xc0
[  371.097687]  ? trace_hardirqs_off_caller+0xbb/0x310
[  371.102727]  ? trace_hardirqs_off_caller+0xbb/0x310
[  371.107740]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.112586]  ? trace_hardirqs_on_caller+0x310/0x310
[  371.117617]  ? trace_hardirqs_on_caller+0x310/0x310
[  371.122631]  ? task_prio+0x50/0x50
[  371.126174]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.131729]  ? check_preemption_disabled+0x48/0x280
[  371.136752]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.141619]  apic_timer_interrupt+0xf/0x20
[  371.145861]  </IRQ>
[  371.148122] RIP: 0010:dump_stack+0x358/0x39d
[  371.152564] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  371.171460] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  371.179172] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  371.186463] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  371.193728] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  371.200999] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  371.208269] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  371.215554]  ? dump_stack+0x34f/0x39d
[  371.219368]  ? dump_stack_print_info.cold.1+0x20/0x20
[  371.224576]  ? mark_held_locks+0x130/0x130
[  371.228812]  ? mark_held_locks+0x130/0x130
[  371.233053]  dump_header+0x27b/0xf72
[  371.236796]  ? pagefault_out_of_memory+0x197/0x197
[  371.241735]  ? __lock_acquire+0x62f/0x4c20
[  371.245976]  ? percpu_ref_get_many+0x240/0x240
[  371.250569]  ? print_usage_bug+0xc0/0xc0
[  371.254636]  ? zap_class+0x640/0x640
[  371.258381]  ? print_usage_bug+0xc0/0xc0
[  371.262443]  ? print_usage_bug+0xc0/0xc0
[  371.266507]  ? zap_class+0x640/0x640
[  371.270221]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.275782]  ? find_held_lock+0x36/0x1c0
[  371.279855]  ? mark_held_locks+0xc7/0x130
[  371.284076]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  371.289203]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  371.294305]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  371.298888]  ? trace_hardirqs_on+0xbd/0x310
[  371.303213]  ? kasan_check_read+0x11/0x20
[  371.307361]  ? ___ratelimit+0x3b4/0x672
[  371.311395]  ? trace_hardirqs_off_caller+0x310/0x310
[  371.316501]  ? trace_hardirqs_on+0x310/0x310
[  371.320912]  ? lock_downgrade+0x900/0x900
[  371.325065]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  371.330172]  ? ___ratelimit+0x3b9/0x672
[  371.334146]  ? idr_get_free+0xf70/0xf70
[  371.338115]  ? find_held_lock+0x36/0x1c0
[  371.342181]  oom_kill_process.cold.27+0x10/0x903
[  371.346935]  ? zap_class+0x640/0x640
[  371.350649]  ? check_preemption_disabled+0x48/0x280
[  371.355679]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  371.360605]  ? kasan_check_read+0x11/0x20
[  371.364752]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.370061]  ? oom_evaluate_task+0x540/0x540
[  371.374475]  ? find_held_lock+0x36/0x1c0
[  371.378545]  ? out_of_memory+0x974/0x1430
[  371.382697]  ? lock_downgrade+0x900/0x900
[  371.386870]  ? check_preemption_disabled+0x48/0x280
[  371.391901]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  371.396830]  ? kasan_check_read+0x11/0x20
[  371.400974]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.406258]  ? rcu_softirq_qs+0x20/0x20
[  371.410236]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.415792]  ? oom_evaluate_task+0x302/0x540
[  371.420202]  out_of_memory+0xa84/0x1430
[  371.424181]  ? oom_killer_disable+0x3a0/0x3a0
[  371.428675]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  371.433605]  ? __ww_mutex_check_waiters+0x160/0x160
[  371.438649]  __alloc_pages_slowpath+0x2354/0x2e10
[  371.443577]  ? warn_alloc+0x120/0x120
[  371.447379]  ? mark_held_locks+0x130/0x130
[  371.451620]  ? find_get_entry+0xaae/0x1120
[  371.455860]  ? filemap_map_pages+0x1a20/0x1a20
[  371.460448]  ? zap_class+0x640/0x640
[  371.464172]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.469713]  ? check_preemption_disabled+0x48/0x280
[  371.474730]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.480274]  ? should_fail+0x22d/0xd01
[  371.484169]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  371.489274]  ? zap_class+0x640/0x640
[  371.493025]  ? __lock_is_held+0xb5/0x140
[  371.497096]  ? mark_held_locks+0x130/0x130
[  371.501338]  ? lock_release+0xa00/0xa00
[  371.505316]  ? perf_trace_sched_process_exec+0x860/0x860
[  371.510774]  ? xa_load+0x2ba/0x460
[  371.514320]  ? lock_downgrade+0x900/0x900
[  371.518474]  ? __might_sleep+0x95/0x190
[  371.522455]  __alloc_pages_nodemask+0xa80/0xde0
[  371.527132]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  371.532151]  ? __page_cache_alloc+0x191/0x5c0
[  371.536644]  ? xa_load+0x2e1/0x460
[  371.540187]  ? xa_clear_mark+0x40/0x40
[  371.544076]  ? zap_class+0x640/0x640
[  371.547804]  ? zap_class+0x640/0x640
[  371.551519]  ? zap_class+0x640/0x640
[  371.555233]  ? __do_page_cache_readahead+0x663/0x810
[  371.560340]  ? find_held_lock+0x36/0x1c0
[  371.564409]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  371.569958]  alloc_pages_current+0x173/0x350
[  371.574380]  __page_cache_alloc+0x38c/0x5c0
[  371.578700]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  371.583635]  ? kasan_check_read+0x11/0x20
[  371.587786]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.593066]  ? generic_perform_write+0x6a0/0x6a0
[  371.597824]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.603366]  ? check_preemption_disabled+0x48/0x280
[  371.608393]  filemap_fault+0x1595/0x25f0
[  371.612472]  ? __lock_page_or_retry+0xa00/0xa00
[  371.617145]  ? mark_held_locks+0x130/0x130
[  371.621395]  ? filemap_map_pages+0xd6b/0x1a20
[  371.625894]  ? lock_downgrade+0x900/0x900
[  371.630045]  ? check_preemption_disabled+0x48/0x280
[  371.635064]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  371.640004]  ? kasan_check_read+0x11/0x20
[  371.644173]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.649460]  ? rcu_softirq_qs+0x20/0x20
[  371.653477]  ? filemap_map_pages+0xd92/0x1a20
[  371.658018]  ? find_get_entries_tag+0x1400/0x1400
[  371.662863]  ? debug_object_destroy+0x2b0/0x2b0
[  371.667665]  ? lock_pi_update_atomic+0x150/0x150
[  371.672419]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.677963]  ? lock_acquire+0x1ed/0x520
[  371.681938]  ? ext4_filemap_fault+0x7a/0xad
[  371.686261]  ? lock_release+0xa00/0xa00
[  371.690242]  ? perf_trace_sched_process_exec+0x860/0x860
[  371.695718]  ? print_usage_bug+0xc0/0xc0
[  371.699794]  ? print_usage_bug+0xc0/0xc0
[  371.703861]  ? down_read+0x8d/0x120
[  371.707493]  ? ext4_filemap_fault+0x7a/0xad
[  371.711812]  ? __down_interruptible+0x700/0x700
[  371.716483]  ext4_filemap_fault+0x82/0xad
[  371.720626]  __do_fault+0x100/0x6b0
[  371.724251]  ? pmd_devmap_trans_unstable+0x220/0x220
[  371.729381]  ? mark_held_locks+0x130/0x130
[  371.733642]  ? mark_held_locks+0x130/0x130
[  371.737874]  ? debug_smp_processor_id+0x1c/0x20
[  371.742543]  ? perf_trace_lock+0x14d/0x7a0
[  371.746829]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.752369]  __handle_mm_fault+0x3ea0/0x5be0
[  371.756809]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  371.761648]  ? lock_is_held_type+0x210/0x210
[  371.766058]  ? ksys_dup3+0x680/0x680
[  371.769789]  ? zap_class+0x640/0x640
[  371.773501]  ? zap_class+0x640/0x640
[  371.777231]  ? __x64_sys_futex+0x53e/0x6a0
[  371.781480]  ? find_held_lock+0x36/0x1c0
[  371.785550]  ? handle_mm_fault+0x42a/0xc70
[  371.789793]  ? lock_downgrade+0x900/0x900
[  371.793941]  ? check_preemption_disabled+0x48/0x280
[  371.798958]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  371.803888]  ? kasan_check_read+0x11/0x20
[  371.808035]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.813326]  ? rcu_softirq_qs+0x20/0x20
[  371.817302]  ? trace_hardirqs_off_caller+0x310/0x310
[  371.822402]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.827936]  ? check_preemption_disabled+0x48/0x280
[  371.832961]  handle_mm_fault+0x54f/0xc70
[  371.837032]  ? __handle_mm_fault+0x5be0/0x5be0
[  371.841617]  ? find_vma+0x34/0x190
[  371.845185]  __do_page_fault+0x5e8/0xe60
[  371.849247]  ? trace_hardirqs_off+0xb8/0x310
[  371.853677]  do_page_fault+0xf2/0x7e0
[  371.857491]  ? vmalloc_sync_all+0x30/0x30
[  371.861642]  ? error_entry+0x70/0xd0
[  371.865361]  ? trace_hardirqs_off_caller+0xbb/0x310
[  371.870371]  ? trace_hardirqs_on_caller+0xc0/0x310
[  371.875295]  ? syscall_return_slowpath+0x5e0/0x5e0
[  371.880231]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.885071]  ? trace_hardirqs_on_caller+0x310/0x310
[  371.890084]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  371.895545]  ? prepare_exit_to_usermode+0x291/0x3b0
[  371.900556]  ? page_fault+0x8/0x30
[  371.904097]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.908966]  ? page_fault+0x8/0x30
[  371.912510]  page_fault+0x1e/0x30
[  371.915980] RIP: 0033:0x40f9c0
[  371.919230] Code: Bad RIP value.
[  371.922590] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  371.927974] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  371.935260] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  371.942528] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  371.949798] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  371.957084] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  371.964389] warn_alloc_show_mem: 1 callbacks suppressed
[  371.964401] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  371.964403] Mem-Info:
[  371.964434] active_anon:54833 inactive_anon:712 isolated_anon:0
[  371.964434]  active_file:11 inactive_file:12 isolated_file:0
[  371.964434]  unevictable:0 dirty:0 writeback:0 unstable:0
[  371.964434]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  371.964434]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  371.964434]  free:13768 free_pcp:742 free_cma:0
[  371.969772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  371.969780] Call Trace:
[  371.976542] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  371.978950]  dump_stack+0x244/0x39d
[  372.011912] 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
[  372.021271]  ? dump_stack_print_info.cold.1+0x20/0x20
[  372.023827] lowmem_reserve[]: 0 2818 6321 6321
[  372.051414]  warn_alloc.cold.116+0xb7/0x1bd
[  372.055019] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  372.081174]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  372.086370] lowmem_reserve[]: 0 0 3503 3503
[  372.090948]  ? lock_downgrade+0x900/0x900
[  372.095243] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  372.123008]  ? trace_hardirqs_off+0xb8/0x310
[  372.127820] lowmem_reserve[]: 0 0 0 0
[  372.132136]  ? trace_hardirqs_off+0xb8/0x310
[  372.136260] 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
[  372.165410]  __alloc_pages_slowpath+0x26e8/0x2e10
[  372.169793] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  372.173609]  ? warn_alloc+0x120/0x120
[  372.177970] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  372.191500]  ? print_usage_bug+0xc0/0xc0
[  372.196320] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  372.212001]  ? warn_alloc+0x120/0x120
[  372.215792] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  372.231147]  ? warn_alloc+0x120/0x120
[  372.235179] 782 total pagecache pages
[  372.244011]  ? print_usage_bug+0xc0/0xc0
[  372.247829] 0 pages in swap cache
[  372.256386]  ? print_usage_bug+0xc0/0xc0
[  372.260176] Swap cache stats: add 0, delete 0, find 0/0
[  372.263961]  ? __lock_acquire+0x62f/0x4c20
[  372.268003] Free swap  = 0kB
[  372.271461]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.275495] Total swap = 0kB
[  372.280849]  ? should_fail+0x22d/0xd01
[  372.285055] 1965979 pages RAM
[  372.288067]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  372.293577] 0 pages HighMem/MovableOnly
[  372.296599]  ? __lock_acquire+0x62f/0x4c20
[  372.300456] 342853 pages reserved
[  372.303552]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  372.308650] 0 pages cma reserved
[  372.308731] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  372.312636]  ? __lock_acquire+0x62f/0x4c20
[  372.312648]  ? should_fail+0x22d/0xd01
[  372.312661]  ? find_held_lock+0x36/0x1c0
[  372.312680]  ? mark_held_locks+0x130/0x130
[  372.316984] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  372.320358]  ? mark_held_locks+0x130/0x130
[  372.325437] syz-fuzzer cpuset=/ mems_allowed=0
[  372.328794]  ? zap_class+0x640/0x640
[  372.374412]  ? zap_class+0x640/0x640
[  372.378131]  ? print_usage_bug+0xc0/0xc0
[  372.382198]  ? do_raw_spin_unlock+0xa7/0x330
[  372.386624]  ? zap_class+0x640/0x640
[  372.390352]  ? print_usage_bug+0xc0/0xc0
[  372.394409]  ? wq_watchdog_touch+0x9c/0xfe
[  372.398642]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.404205]  ? check_preemption_disabled+0x48/0x280
[  372.409245]  ? __lock_is_held+0xb5/0x140
[  372.413330]  __alloc_pages_nodemask+0xa80/0xde0
[  372.418002]  ? zap_class+0x640/0x640
[  372.421722]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  372.426754]  ? find_held_lock+0x36/0x1c0
[  372.430824]  ? ____cache_alloc_node+0x1c7/0x1e0
[  372.435623]  ? lock_downgrade+0x900/0x900
[  372.439806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.445347]  cache_grow_begin+0xa5/0x8c0
[  372.449403]  ? do_raw_spin_unlock+0xa7/0x330
[  372.453830]  fallback_alloc+0x204/0x2e0
[  372.457805]  ____cache_alloc_node+0x1c7/0x1e0
[  372.462305]  kmem_cache_alloc_node+0xe3/0x730
[  372.466814]  ? ipv6_get_ifaddr+0x42e/0x620
[  372.471073]  __alloc_skb+0x119/0x770
[  372.474784]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.480061]  ? netdev_alloc_frag+0x1f0/0x1f0
[  372.484510]  ? lock_downgrade+0x900/0x900
[  372.488717]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.494275]  ? refcount_sub_and_test_checked+0x203/0x310
[  372.499727]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  372.505185]  ? addrconf_rs_timer+0x690/0x690
[  372.509601]  ndisc_alloc_skb+0x144/0x340
[  372.513675]  ndisc_send_rs+0x331/0x6e0
[  372.517586]  addrconf_rs_timer+0x314/0x690
[  372.521824]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.526067]  call_timer_fn+0x272/0x920
[  372.529952]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.534188]  ? process_timeout+0x40/0x40
[  372.538261]  ? __run_timers+0x7da/0xc70
[  372.542239]  ? _raw_spin_unlock_irq+0x27/0x80
[  372.546750]  ? _raw_spin_unlock_irq+0x27/0x80
[  372.551239]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.555474]  ? lockdep_hardirqs_on+0x296/0x5b0
[  372.560057]  ? trace_hardirqs_on+0xbd/0x310
[  372.564377]  ? kasan_check_read+0x11/0x20
[  372.568520]  ? __run_timers+0x7da/0xc70
[  372.572547]  ? trace_hardirqs_off_caller+0x310/0x310
[  372.577678]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.581910]  __run_timers+0x7e5/0xc70
[  372.585718]  ? timer_fixup_init+0x70/0x70
[  372.589867]  ? _raw_spin_unlock_irq+0x27/0x80
[  372.594356]  ? _raw_spin_unlock_irq+0x27/0x80
[  372.598847]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  372.603439]  ? trace_hardirqs_on+0xbd/0x310
[  372.607786]  ? kasan_check_read+0x11/0x20
[  372.611933]  ? finish_task_switch+0x1f4/0x910
[  372.616437]  ? trace_hardirqs_off_caller+0x310/0x310
[  372.621560]  ? compat_start_thread+0x80/0x80
[  372.625986]  ? pvclock_read_flags+0x160/0x160
[  372.630490]  ? __switch_to_asm+0x34/0x70
[  372.634570]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.640107]  ? check_preemption_disabled+0x48/0x280
[  372.645144]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  372.650715]  ? rcu_pm_notify+0xc0/0xc0
[  372.654604]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.660147]  ? check_preemption_disabled+0x48/0x280
[  372.665166]  run_timer_softirq+0x52/0xb0
[  372.669228]  ? rcu_read_lock_sched_held+0x14f/0x180
[  372.674269]  __do_softirq+0x308/0xb7e
[  372.678075]  ? retint_kernel+0x2d/0x2d
[  372.681974]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  372.687085]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  372.692562]  ? trace_hardirqs_on+0x310/0x310
[  372.696969]  ? schedule+0x108/0x460
[  372.700618]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  372.705399]  ? trace_hardirqs_off+0xb8/0x310
[  372.709804]  ? smpboot_thread_fn+0x68b/0xa00
[  372.714204]  ? trace_hardirqs_on+0x310/0x310
[  372.718605]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.724140]  ? check_preemption_disabled+0x48/0x280
[  372.729154]  ? takeover_tasklets+0xa90/0xa90
[  372.733576]  run_ksoftirqd+0x5e/0x100
[  372.737374]  smpboot_thread_fn+0x68b/0xa00
[  372.741613]  ? sort_range+0x30/0x30
[  372.745235]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  372.750353]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.755887]  ? __kthread_parkme+0xfb/0x1a0
[  372.760123]  ? sort_range+0x30/0x30
[  372.763744]  kthread+0x35a/0x440
[  372.767152]  ? kthread_stop+0x900/0x900
[  372.771126]  ret_from_fork+0x3a/0x50
[  372.774854] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  372.774921] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  372.781778] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  372.781783] Call Trace:
[  372.781789]  <IRQ>
[  372.781804]  dump_stack+0x244/0x39d
[  372.781820]  ? dump_stack_print_info.cold.1+0x20/0x20
[  372.788359] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  372.797757]  warn_alloc.cold.116+0xb7/0x1bd
[  372.800613] ksoftirqd/0 cpuset=/ mems_allowed=0
[  372.802774]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  372.836156]  ? lock_downgrade+0x900/0x900
[  372.840335]  ? trace_hardirqs_off+0xb8/0x310
[  372.844746]  ? trace_hardirqs_off+0xb8/0x310
[  372.849169]  __alloc_pages_slowpath+0x26e8/0x2e10
[  372.854031]  ? warn_alloc+0x120/0x120
[  372.857863]  ? print_usage_bug+0xc0/0xc0
[  372.861921]  ? warn_alloc+0x120/0x120
[  372.865723]  ? warn_alloc+0x120/0x120
[  372.869523]  ? print_usage_bug+0xc0/0xc0
[  372.873598]  ? print_usage_bug+0xc0/0xc0
[  372.877675]  ? __lock_acquire+0x62f/0x4c20
[  372.881926]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.887466]  ? should_fail+0x22d/0xd01
[  372.891385]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  372.896523]  ? __lock_acquire+0x62f/0x4c20
[  372.900777]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  372.905895]  ? __lock_acquire+0x62f/0x4c20
[  372.910130]  ? should_fail+0x22d/0xd01
[  372.914022]  ? find_held_lock+0x36/0x1c0
[  372.918090]  ? mark_held_locks+0x130/0x130
[  372.922327]  ? mark_held_locks+0x130/0x130
[  372.926558]  ? zap_class+0x640/0x640
[  372.930273]  ? zap_class+0x640/0x640
[  372.933990]  ? print_usage_bug+0xc0/0xc0
[  372.938056]  ? do_raw_spin_unlock+0xa7/0x330
[  372.942465]  ? zap_class+0x640/0x640
[  372.946211]  ? print_usage_bug+0xc0/0xc0
[  372.950271]  ? wq_watchdog_touch+0x9c/0xfe
[  372.954505]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.960049]  ? check_preemption_disabled+0x48/0x280
[  372.965067]  ? __lock_is_held+0xb5/0x140
[  372.969145]  __alloc_pages_nodemask+0xa80/0xde0
[  372.973838]  ? zap_class+0x640/0x640
[  372.977549]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  372.982596]  ? find_held_lock+0x36/0x1c0
[  372.986659]  ? ____cache_alloc_node+0x1c7/0x1e0
[  372.991320]  ? lock_downgrade+0x900/0x900
[  372.995484]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.001066]  cache_grow_begin+0xa5/0x8c0
[  373.005158]  ? do_raw_spin_unlock+0xa7/0x330
[  373.009573]  fallback_alloc+0x204/0x2e0
[  373.013560]  ____cache_alloc_node+0x1c7/0x1e0
[  373.018073]  kmem_cache_alloc_node+0xe3/0x730
[  373.022565]  ? ipv6_get_ifaddr+0x42e/0x620
[  373.026834]  __alloc_skb+0x119/0x770
[  373.030540]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.035828]  ? netdev_alloc_frag+0x1f0/0x1f0
[  373.040234]  ? lock_downgrade+0x900/0x900
[  373.044396]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.049930]  ? refcount_sub_and_test_checked+0x203/0x310
[  373.055379]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  373.060836]  ? addrconf_rs_timer+0x690/0x690
[  373.065266]  ndisc_alloc_skb+0x144/0x340
[  373.069345]  ndisc_send_rs+0x331/0x6e0
[  373.073247]  addrconf_rs_timer+0x314/0x690
[  373.077481]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.081720]  call_timer_fn+0x272/0x920
[  373.085603]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.089838]  ? process_timeout+0x40/0x40
[  373.093902]  ? mark_held_locks+0xc7/0x130
[  373.098056]  ? _raw_spin_unlock_irq+0x27/0x80
[  373.102546]  ? _raw_spin_unlock_irq+0x27/0x80
[  373.107035]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.111267]  ? lockdep_hardirqs_on+0x296/0x5b0
[  373.115848]  ? trace_hardirqs_on+0xbd/0x310
[  373.120166]  ? kasan_check_read+0x11/0x20
[  373.124305]  ? __run_timers+0x7da/0xc70
[  373.128274]  ? trace_hardirqs_off_caller+0x310/0x310
[  373.133420]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.137664]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.141899]  __run_timers+0x7e5/0xc70
[  373.145753]  ? timer_fixup_init+0x70/0x70
[  373.149943]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  373.154959]  ? zap_class+0x640/0x640
[  373.158689]  ? print_usage_bug+0xc0/0xc0
[  373.162782]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  373.168004]  ? find_held_lock+0x36/0x1c0
[  373.172074]  ? zap_class+0x640/0x640
[  373.175793]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.181326]  ? check_preemption_disabled+0x48/0x280
[  373.186364]  ? __lock_is_held+0xb5/0x140
[  373.190423]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.195973]  ? check_preemption_disabled+0x48/0x280
[  373.201006]  run_timer_softirq+0x52/0xb0
[  373.205070]  ? rcu_read_lock_sched_held+0x14f/0x180
[  373.210089]  __do_softirq+0x308/0xb7e
[  373.213896]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  373.218389]  ? lock_downgrade+0x900/0x900
[  373.222617]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  373.227742]  ? pvclock_read_flags+0x160/0x160
[  373.232244]  ? lapic_next_event+0x5a/0x90
[  373.236414]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.241971]  ? kvm_clock_read+0x18/0x30
[  373.245965]  ? kvm_sched_clock_read+0x9/0x20
[  373.250379]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.255918]  ? check_preemption_disabled+0x48/0x280
[  373.260941]  irq_exit+0x17f/0x1c0
[  373.264393]  smp_apic_timer_interrupt+0x1cb/0x760
[  373.269249]  ? smp_call_function_single_interrupt+0x159/0x650
[  373.275134]  ? smp_call_function_single_interrupt+0x650/0x650
[  373.281023]  ? interrupt_entry+0xb5/0xc0
[  373.285086]  ? trace_hardirqs_off_caller+0xbb/0x310
[  373.290105]  ? trace_hardirqs_off_caller+0xbb/0x310
[  373.295125]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  373.299968]  ? trace_hardirqs_on_caller+0x310/0x310
[  373.304987]  ? trace_hardirqs_on_caller+0x310/0x310
[  373.310015]  ? task_prio+0x50/0x50
[  373.313555]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.319096]  ? check_preemption_disabled+0x48/0x280
[  373.324121]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  373.328973]  apic_timer_interrupt+0xf/0x20
[  373.333222]  </IRQ>
[  373.335477] RIP: 0010:dump_stack+0x358/0x39d
[  373.339890] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  373.358804] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  373.366510] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  373.373806] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  373.381085] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  373.388352] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  373.395614] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  373.402904]  ? dump_stack+0x34f/0x39d
[  373.406715]  ? dump_stack_print_info.cold.1+0x20/0x20
[  373.411911]  ? mark_held_locks+0x130/0x130
[  373.416143]  ? mark_held_locks+0x130/0x130
[  373.420384]  dump_header+0x27b/0xf72
[  373.424107]  ? pagefault_out_of_memory+0x197/0x197
[  373.429055]  ? __lock_acquire+0x62f/0x4c20
[  373.433292]  ? percpu_ref_get_many+0x240/0x240
[  373.437896]  ? print_usage_bug+0xc0/0xc0
[  373.441963]  ? zap_class+0x640/0x640
[  373.445686]  ? print_usage_bug+0xc0/0xc0
[  373.449746]  ? print_usage_bug+0xc0/0xc0
[  373.453808]  ? zap_class+0x640/0x640
[  373.457561]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.463112]  ? find_held_lock+0x36/0x1c0
[  373.467180]  ? mark_held_locks+0xc7/0x130
[  373.471344]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  373.476445]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  373.481561]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  373.486145]  ? trace_hardirqs_on+0xbd/0x310
[  373.490463]  ? kasan_check_read+0x11/0x20
[  373.494632]  ? ___ratelimit+0x3b4/0x672
[  373.498600]  ? trace_hardirqs_off_caller+0x310/0x310
[  373.503698]  ? trace_hardirqs_on+0x310/0x310
[  373.508114]  ? lock_downgrade+0x900/0x900
[  373.512259]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  373.517357]  ? ___ratelimit+0x3b9/0x672
[  373.521339]  ? idr_get_free+0xf70/0xf70
[  373.525331]  ? find_held_lock+0x36/0x1c0
[  373.529403]  oom_kill_process.cold.27+0x10/0x903
[  373.534157]  ? zap_class+0x640/0x640
[  373.537871]  ? check_preemption_disabled+0x48/0x280
[  373.542893]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  373.547824]  ? kasan_check_read+0x11/0x20
[  373.551971]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.557263]  ? oom_evaluate_task+0x540/0x540
[  373.561677]  ? find_held_lock+0x36/0x1c0
[  373.565745]  ? out_of_memory+0x974/0x1430
[  373.569916]  ? lock_downgrade+0x900/0x900
[  373.574067]  ? check_preemption_disabled+0x48/0x280
[  373.579086]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  373.584030]  ? kasan_check_read+0x11/0x20
[  373.588188]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.593473]  ? rcu_softirq_qs+0x20/0x20
[  373.597467]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.603017]  ? oom_evaluate_task+0x302/0x540
[  373.607429]  out_of_memory+0xa84/0x1430
[  373.611412]  ? oom_killer_disable+0x3a0/0x3a0
[  373.615907]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  373.620837]  ? __ww_mutex_check_waiters+0x160/0x160
[  373.625863]  __alloc_pages_slowpath+0x2354/0x2e10
[  373.630738]  ? warn_alloc+0x120/0x120
[  373.634544]  ? mark_held_locks+0x130/0x130
[  373.638785]  ? find_get_entry+0xaae/0x1120
[  373.643033]  ? filemap_map_pages+0x1a20/0x1a20
[  373.647631]  ? zap_class+0x640/0x640
[  373.651361]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.656899]  ? check_preemption_disabled+0x48/0x280
[  373.661913]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.667581]  ? should_fail+0x22d/0xd01
[  373.671473]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  373.676572]  ? zap_class+0x640/0x640
[  373.680297]  ? __lock_is_held+0xb5/0x140
[  373.684383]  ? mark_held_locks+0x130/0x130
[  373.688632]  ? lock_release+0xa00/0xa00
[  373.692622]  ? perf_trace_sched_process_exec+0x860/0x860
[  373.698447]  ? xa_load+0x2ba/0x460
[  373.702006]  ? lock_downgrade+0x900/0x900
[  373.706216]  ? __might_sleep+0x95/0x190
[  373.710189]  __alloc_pages_nodemask+0xa80/0xde0
[  373.714860]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  373.719871]  ? __page_cache_alloc+0x191/0x5c0
[  373.724366]  ? xa_load+0x2e1/0x460
[  373.727916]  ? xa_clear_mark+0x40/0x40
[  373.731842]  ? zap_class+0x640/0x640
[  373.735566]  ? zap_class+0x640/0x640
[  373.739286]  ? zap_class+0x640/0x640
[  373.743016]  ? __do_page_cache_readahead+0x663/0x810
[  373.748134]  ? find_held_lock+0x36/0x1c0
[  373.752194]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  373.757736]  alloc_pages_current+0x173/0x350
[  373.762156]  __page_cache_alloc+0x38c/0x5c0
[  373.766474]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  373.771401]  ? kasan_check_read+0x11/0x20
[  373.775552]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.780826]  ? generic_perform_write+0x6a0/0x6a0
[  373.785577]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.791127]  ? check_preemption_disabled+0x48/0x280
[  373.796144]  filemap_fault+0x1595/0x25f0
[  373.800651]  ? __lock_page_or_retry+0xa00/0xa00
[  373.805329]  ? mark_held_locks+0x130/0x130
[  373.809603]  ? filemap_map_pages+0xd6b/0x1a20
[  373.814127]  ? lock_downgrade+0x900/0x900
[  373.818285]  ? check_preemption_disabled+0x48/0x280
[  373.823306]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  373.828236]  ? kasan_check_read+0x11/0x20
[  373.832383]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.837663]  ? rcu_softirq_qs+0x20/0x20
[  373.841654]  ? filemap_map_pages+0xd92/0x1a20
[  373.846166]  ? find_get_entries_tag+0x1400/0x1400
[  373.851027]  ? debug_object_destroy+0x2b0/0x2b0
[  373.855708]  ? lock_pi_update_atomic+0x150/0x150
[  373.860462]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.866031]  ? lock_acquire+0x1ed/0x520
[  373.870006]  ? ext4_filemap_fault+0x7a/0xad
[  373.874327]  ? lock_release+0xa00/0xa00
[  373.878294]  ? perf_trace_sched_process_exec+0x860/0x860
[  373.883761]  ? print_usage_bug+0xc0/0xc0
[  373.887854]  ? print_usage_bug+0xc0/0xc0
[  373.891921]  ? down_read+0x8d/0x120
[  373.895543]  ? ext4_filemap_fault+0x7a/0xad
[  373.899883]  ? __down_interruptible+0x700/0x700
[  373.904551]  ext4_filemap_fault+0x82/0xad
[  373.908696]  __do_fault+0x100/0x6b0
[  373.912329]  ? pmd_devmap_trans_unstable+0x220/0x220
[  373.917453]  ? mark_held_locks+0x130/0x130
[  373.921701]  ? mark_held_locks+0x130/0x130
[  373.925934]  ? debug_smp_processor_id+0x1c/0x20
[  373.930607]  ? perf_trace_lock+0x14d/0x7a0
[  373.934841]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.940408]  __handle_mm_fault+0x3ea0/0x5be0
[  373.944837]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  373.949696]  ? lock_is_held_type+0x210/0x210
[  373.954106]  ? ksys_dup3+0x680/0x680
[  373.957827]  ? zap_class+0x640/0x640
[  373.961536]  ? zap_class+0x640/0x640
[  373.965243]  ? __x64_sys_futex+0x53e/0x6a0
[  373.969488]  ? find_held_lock+0x36/0x1c0
[  373.973553]  ? handle_mm_fault+0x42a/0xc70
[  373.977788]  ? lock_downgrade+0x900/0x900
[  373.981937]  ? check_preemption_disabled+0x48/0x280
[  373.986953]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  373.991914]  ? kasan_check_read+0x11/0x20
[  373.996074]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.001365]  ? rcu_softirq_qs+0x20/0x20
[  374.005339]  ? trace_hardirqs_off_caller+0x310/0x310
[  374.010440]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.015989]  ? check_preemption_disabled+0x48/0x280
[  374.021022]  handle_mm_fault+0x54f/0xc70
[  374.025118]  ? __handle_mm_fault+0x5be0/0x5be0
[  374.029706]  ? find_vma+0x34/0x190
[  374.033248]  __do_page_fault+0x5e8/0xe60
[  374.037360]  ? trace_hardirqs_off+0xb8/0x310
[  374.041794]  do_page_fault+0xf2/0x7e0
[  374.045601]  ? vmalloc_sync_all+0x30/0x30
[  374.049746]  ? error_entry+0x70/0xd0
[  374.053464]  ? trace_hardirqs_off_caller+0xbb/0x310
[  374.058504]  ? trace_hardirqs_on_caller+0xc0/0x310
[  374.063446]  ? syscall_return_slowpath+0x5e0/0x5e0
[  374.068377]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.073218]  ? trace_hardirqs_on_caller+0x310/0x310
[  374.078254]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  374.083705]  ? prepare_exit_to_usermode+0x291/0x3b0
[  374.088752]  ? page_fault+0x8/0x30
[  374.092321]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.097163]  ? page_fault+0x8/0x30
[  374.100701]  page_fault+0x1e/0x30
[  374.104146] RIP: 0033:0x40f9c0
[  374.107374] Code: Bad RIP value.
[  374.110776] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  374.116134] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  374.123398] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  374.130681] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  374.137944] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  374.145206] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  374.152528] warn_alloc_show_mem: 1 callbacks suppressed
[  374.152539] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  374.152540] Mem-Info:
[  374.152567] active_anon:54833 inactive_anon:712 isolated_anon:0
[  374.152567]  active_file:11 inactive_file:12 isolated_file:0
[  374.152567]  unevictable:0 dirty:0 writeback:0 unstable:0
[  374.152567]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  374.152567]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  374.152567]  free:13768 free_pcp:742 free_cma:0
[  374.157904] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  374.164651] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  374.167045] Call Trace:
[  374.200056] 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
[  374.209420]  dump_stack+0x244/0x39d
[  374.236974] lowmem_reserve[]: 0 2818 6321 6321
[  374.239559]  ? dump_stack_print_info.cold.1+0x20/0x20
[  374.265645] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  374.269300]  warn_alloc.cold.116+0xb7/0x1bd
[  374.273849] lowmem_reserve[]: 0 0 3503 3503
[  374.279033]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  374.306770] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  374.311084]  ? lock_downgrade+0x900/0x900
[  374.315378] lowmem_reserve[]: 0 0 0 0
[  374.320212]  ? trace_hardirqs_off+0xb8/0x310
[  374.349342] 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
[  374.353555]  ? trace_hardirqs_off+0xb8/0x310
[  374.357334] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  374.361757]  __alloc_pages_slowpath+0x26e8/0x2e10
[  374.375260] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  374.379716]  ? warn_alloc+0x120/0x120
[  374.395370] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  374.400202]  ? print_usage_bug+0xc0/0xc0
[  374.415529] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  374.419317]  ? warn_alloc+0x120/0x120
[  374.428165] 782 total pagecache pages
[  374.432232]  ? warn_alloc+0x120/0x120
[  374.440793] 0 pages in swap cache
[  374.444592]  ? print_usage_bug+0xc0/0xc0
[  374.448373] Swap cache stats: add 0, delete 0, find 0/0
[  374.452194]  ? print_usage_bug+0xc0/0xc0
[  374.455630] Free swap  = 0kB
[  374.459687]  ? __lock_acquire+0x62f/0x4c20
[  374.465027] Total swap = 0kB
[  374.469076]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.472066] 1965979 pages RAM
[  374.476290]  ? should_fail+0x22d/0xd01
[  374.479279] 0 pages HighMem/MovableOnly
[  374.484803]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  374.487880] 342853 pages reserved
[  374.491753]  ? __lock_acquire+0x62f/0x4c20
[  374.495705] 0 pages cma reserved
[  374.500808]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  374.504302] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  374.508468]  ? __lock_acquire+0x62f/0x4c20
[  374.508483]  ? should_fail+0x22d/0xd01
[  374.511904] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  374.516914]  ? find_held_lock+0x36/0x1c0
[  374.523378] syz-fuzzer cpuset=/ mems_allowed=0
[  374.527635]  ? mark_held_locks+0x130/0x130
[  374.554530]  ? mark_held_locks+0x130/0x130
[  374.558768]  ? zap_class+0x640/0x640
[  374.562505]  ? zap_class+0x640/0x640
[  374.566246]  ? print_usage_bug+0xc0/0xc0
[  374.570299]  ? do_raw_spin_unlock+0xa7/0x330
[  374.574739]  ? zap_class+0x640/0x640
[  374.578445]  ? print_usage_bug+0xc0/0xc0
[  374.582560]  ? wq_watchdog_touch+0x9c/0xfe
[  374.586797]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.592328]  ? check_preemption_disabled+0x48/0x280
[  374.597387]  ? __lock_is_held+0xb5/0x140
[  374.601489]  __alloc_pages_nodemask+0xa80/0xde0
[  374.606177]  ? zap_class+0x640/0x640
[  374.609897]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  374.614921]  ? find_held_lock+0x36/0x1c0
[  374.619011]  ? ____cache_alloc_node+0x1c7/0x1e0
[  374.623682]  ? lock_downgrade+0x900/0x900
[  374.627835]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.633392]  cache_grow_begin+0xa5/0x8c0
[  374.637446]  ? do_raw_spin_unlock+0xa7/0x330
[  374.641870]  fallback_alloc+0x204/0x2e0
[  374.645854]  ____cache_alloc_node+0x1c7/0x1e0
[  374.650363]  kmem_cache_alloc_node+0xe3/0x730
[  374.654852]  ? ipv6_get_ifaddr+0x42e/0x620
[  374.659115]  __alloc_skb+0x119/0x770
[  374.662825]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.668105]  ? netdev_alloc_frag+0x1f0/0x1f0
[  374.672514]  ? lock_downgrade+0x900/0x900
[  374.676664]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.682212]  ? refcount_sub_and_test_checked+0x203/0x310
[  374.687662]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  374.693122]  ? addrconf_rs_timer+0x690/0x690
[  374.697534]  ndisc_alloc_skb+0x144/0x340
[  374.701589]  ndisc_send_rs+0x331/0x6e0
[  374.705496]  addrconf_rs_timer+0x314/0x690
[  374.709728]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.713960]  call_timer_fn+0x272/0x920
[  374.717835]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.722065]  ? process_timeout+0x40/0x40
[  374.726127]  ? __run_timers+0x7da/0xc70
[  374.730132]  ? _raw_spin_unlock_irq+0x27/0x80
[  374.734648]  ? _raw_spin_unlock_irq+0x27/0x80
[  374.739143]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.743390]  ? lockdep_hardirqs_on+0x296/0x5b0
[  374.747969]  ? trace_hardirqs_on+0xbd/0x310
[  374.752305]  ? kasan_check_read+0x11/0x20
[  374.756477]  ? __run_timers+0x7da/0xc70
[  374.760448]  ? trace_hardirqs_off_caller+0x310/0x310
[  374.765565]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.769801]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.774044]  __run_timers+0x7e5/0xc70
[  374.777860]  ? timer_fixup_init+0x70/0x70
[  374.782008]  ? _raw_spin_unlock_irq+0x27/0x80
[  374.786509]  ? _raw_spin_unlock_irq+0x27/0x80
[  374.791025]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  374.795604]  ? trace_hardirqs_on+0xbd/0x310
[  374.800054]  ? kasan_check_read+0x11/0x20
[  374.804213]  ? finish_task_switch+0x1f4/0x910
[  374.808720]  ? trace_hardirqs_off_caller+0x310/0x310
[  374.813817]  ? compat_start_thread+0x80/0x80
[  374.818231]  ? pvclock_read_flags+0x160/0x160
[  374.822728]  ? __switch_to_asm+0x34/0x70
[  374.826796]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.832328]  ? check_preemption_disabled+0x48/0x280
[  374.837374]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  374.842954]  ? rcu_pm_notify+0xc0/0xc0
[  374.846861]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.852409]  ? check_preemption_disabled+0x48/0x280
[  374.857422]  run_timer_softirq+0x52/0xb0
[  374.861472]  ? rcu_read_lock_sched_held+0x14f/0x180
[  374.866514]  __do_softirq+0x308/0xb7e
[  374.870308]  ? retint_kernel+0x2d/0x2d
[  374.874208]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  374.879327]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  374.884784]  ? trace_hardirqs_on+0x310/0x310
[  374.889189]  ? schedule+0x108/0x460
[  374.892809]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  374.897568]  ? trace_hardirqs_off+0xb8/0x310
[  374.901973]  ? smpboot_thread_fn+0x68b/0xa00
[  374.906396]  ? trace_hardirqs_on+0x310/0x310
[  374.910801]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.916354]  ? check_preemption_disabled+0x48/0x280
[  374.921392]  ? takeover_tasklets+0xa90/0xa90
[  374.925824]  run_ksoftirqd+0x5e/0x100
[  374.929636]  smpboot_thread_fn+0x68b/0xa00
[  374.933887]  ? sort_range+0x30/0x30
[  374.937542]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  374.942655]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.948186]  ? __kthread_parkme+0xfb/0x1a0
[  374.952437]  ? sort_range+0x30/0x30
[  374.956072]  kthread+0x35a/0x440
[  374.959463]  ? kthread_stop+0x900/0x900
[  374.963454]  ret_from_fork+0x3a/0x50
[  374.967197] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  374.967258] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  374.974121] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  374.974125] Call Trace:
[  374.974132]  <IRQ>
[  374.974147]  dump_stack+0x244/0x39d
[  374.974164]  ? dump_stack_print_info.cold.1+0x20/0x20
[  374.980730] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  374.990010]  warn_alloc.cold.116+0xb7/0x1bd
[  374.992567] ksoftirqd/0 cpuset=/ mems_allowed=0
[  374.994725]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  375.027648]  ? lock_downgrade+0x900/0x900
[  375.031816]  ? trace_hardirqs_off+0xb8/0x310
[  375.036229]  ? trace_hardirqs_off+0xb8/0x310
[  375.040653]  __alloc_pages_slowpath+0x26e8/0x2e10
[  375.045546]  ? warn_alloc+0x120/0x120
[  375.049359]  ? print_usage_bug+0xc0/0xc0
[  375.053428]  ? warn_alloc+0x120/0x120
[  375.057266]  ? warn_alloc+0x120/0x120
[  375.061077]  ? print_usage_bug+0xc0/0xc0
[  375.065147]  ? kvm_clock_read+0x18/0x30
[  375.069116]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  375.074133]  ? print_usage_bug+0xc0/0xc0
[  375.078213]  ? __lock_acquire+0x62f/0x4c20
[  375.082463]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.088007]  ? should_fail+0x22d/0xd01
[  375.091891]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.097169]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  375.102273]  ? __lock_acquire+0x62f/0x4c20
[  375.106521]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  375.111634]  ? __lock_acquire+0x62f/0x4c20
[  375.115862]  ? should_fail+0x22d/0xd01
[  375.119742]  ? rcu_irq_exit+0x1a2/0x390
[  375.123741]  ? mark_held_locks+0x130/0x130
[  375.128007]  ? mark_held_locks+0x130/0x130
[  375.132250]  ? mark_held_locks+0xc7/0x130
[  375.136398]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  375.141411]  ? zap_class+0x640/0x640
[  375.145123]  ? print_usage_bug+0xc0/0xc0
[  375.149181]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.154724]  ? check_preemption_disabled+0x48/0x280
[  375.159745]  ? __lock_is_held+0xb5/0x140
[  375.163825]  __alloc_pages_nodemask+0xa80/0xde0
[  375.168504]  ? zap_class+0x640/0x640
[  375.172251]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  375.177272]  ? find_held_lock+0x36/0x1c0
[  375.181337]  ? ____cache_alloc_node+0x1c7/0x1e0
[  375.186011]  ? lock_downgrade+0x900/0x900
[  375.190166]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.195706]  cache_grow_begin+0xa5/0x8c0
[  375.199770]  ? do_raw_spin_unlock+0xa7/0x330
[  375.204182]  fallback_alloc+0x204/0x2e0
[  375.208174]  ____cache_alloc_node+0x1c7/0x1e0
[  375.212694]  kmem_cache_alloc_node+0xe3/0x730
[  375.217228]  ? ipv6_get_ifaddr+0x42e/0x620
[  375.221494]  __alloc_skb+0x119/0x770
[  375.225204]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.230481]  ? netdev_alloc_frag+0x1f0/0x1f0
[  375.234888]  ? lock_downgrade+0x900/0x900
[  375.239043]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.244584]  ? refcount_sub_and_test_checked+0x203/0x310
[  375.250057]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  375.255510]  ? addrconf_rs_timer+0x690/0x690
[  375.259929]  ndisc_alloc_skb+0x144/0x340
[  375.264004]  ndisc_send_rs+0x331/0x6e0
[  375.267898]  addrconf_rs_timer+0x314/0x690
[  375.272138]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.276399]  call_timer_fn+0x272/0x920
[  375.280289]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.284527]  ? process_timeout+0x40/0x40
[  375.288610]  ? mark_held_locks+0xc7/0x130
[  375.292773]  ? _raw_spin_unlock_irq+0x27/0x80
[  375.297269]  ? _raw_spin_unlock_irq+0x27/0x80
[  375.301770]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.306012]  ? lockdep_hardirqs_on+0x296/0x5b0
[  375.310596]  ? trace_hardirqs_on+0xbd/0x310
[  375.314917]  ? kasan_check_read+0x11/0x20
[  375.319067]  ? __run_timers+0x7da/0xc70
[  375.323045]  ? trace_hardirqs_off_caller+0x310/0x310
[  375.328152]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.332417]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.336678]  __run_timers+0x7e5/0xc70
[  375.340493]  ? timer_fixup_init+0x70/0x70
[  375.344642]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  375.349682]  ? zap_class+0x640/0x640
[  375.353399]  ? print_usage_bug+0xc0/0xc0
[  375.357478]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  375.362674]  ? find_held_lock+0x36/0x1c0
[  375.366755]  ? zap_class+0x640/0x640
[  375.370484]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.376040]  ? check_preemption_disabled+0x48/0x280
[  375.381067]  ? __lock_is_held+0xb5/0x140
[  375.385132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.390674]  ? check_preemption_disabled+0x48/0x280
[  375.395709]  run_timer_softirq+0x52/0xb0
[  375.399780]  ? rcu_read_lock_sched_held+0x14f/0x180
[  375.404802]  __do_softirq+0x308/0xb7e
[  375.408612]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  375.413106]  ? lock_downgrade+0x900/0x900
[  375.417264]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  375.422376]  ? pvclock_read_flags+0x160/0x160
[  375.426874]  ? lapic_next_event+0x5a/0x90
[  375.431034]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.436581]  ? kvm_clock_read+0x18/0x30
[  375.440588]  ? kvm_sched_clock_read+0x9/0x20
[  375.445011]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.450552]  ? check_preemption_disabled+0x48/0x280
[  375.455604]  irq_exit+0x17f/0x1c0
[  375.459054]  smp_apic_timer_interrupt+0x1cb/0x760
[  375.463890]  ? smp_call_function_single_interrupt+0x159/0x650
[  375.469775]  ? smp_call_function_single_interrupt+0x650/0x650
[  375.475655]  ? interrupt_entry+0xb5/0xc0
[  375.479716]  ? trace_hardirqs_off_caller+0xbb/0x310
[  375.484729]  ? trace_hardirqs_off_caller+0xbb/0x310
[  375.489778]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.494661]  ? trace_hardirqs_on_caller+0x310/0x310
[  375.499675]  ? trace_hardirqs_on_caller+0x310/0x310
[  375.504701]  ? task_prio+0x50/0x50
[  375.508239]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.513780]  ? check_preemption_disabled+0x48/0x280
[  375.518806]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.523667]  apic_timer_interrupt+0xf/0x20
[  375.527906]  </IRQ>
[  375.530173] RIP: 0010:dump_stack+0x358/0x39d
[  375.534579] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  375.553477] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  375.561180] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  375.568457] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  375.575727] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  375.583001] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  375.590270] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  375.597556]  ? dump_stack+0x34f/0x39d
[  375.601369]  ? dump_stack_print_info.cold.1+0x20/0x20
[  375.606568]  ? mark_held_locks+0x130/0x130
[  375.610816]  ? mark_held_locks+0x130/0x130
[  375.615053]  dump_header+0x27b/0xf72
[  375.618786]  ? pagefault_out_of_memory+0x197/0x197
[  375.623722]  ? __lock_acquire+0x62f/0x4c20
[  375.627980]  ? percpu_ref_get_many+0x240/0x240
[  375.632574]  ? print_usage_bug+0xc0/0xc0
[  375.636641]  ? zap_class+0x640/0x640
[  375.640356]  ? print_usage_bug+0xc0/0xc0
[  375.644416]  ? print_usage_bug+0xc0/0xc0
[  375.648507]  ? zap_class+0x640/0x640
[  375.652244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.657793]  ? find_held_lock+0x36/0x1c0
[  375.661867]  ? mark_held_locks+0xc7/0x130
[  375.666021]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  375.671287]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  375.676394]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  375.680977]  ? trace_hardirqs_on+0xbd/0x310
[  375.685305]  ? kasan_check_read+0x11/0x20
[  375.689451]  ? ___ratelimit+0x3b4/0x672
[  375.693429]  ? trace_hardirqs_off_caller+0x310/0x310
[  375.698533]  ? trace_hardirqs_on+0x310/0x310
[  375.702940]  ? lock_downgrade+0x900/0x900
[  375.707090]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  375.712188]  ? ___ratelimit+0x3b9/0x672
[  375.716157]  ? idr_get_free+0xf70/0xf70
[  375.720136]  ? find_held_lock+0x36/0x1c0
[  375.724203]  oom_kill_process.cold.27+0x10/0x903
[  375.728955]  ? zap_class+0x640/0x640
[  375.732704]  ? check_preemption_disabled+0x48/0x280
[  375.737722]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  375.742657]  ? kasan_check_read+0x11/0x20
[  375.746802]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.752090]  ? oom_evaluate_task+0x540/0x540
[  375.756496]  ? find_held_lock+0x36/0x1c0
[  375.760556]  ? out_of_memory+0x974/0x1430
[  375.764703]  ? lock_downgrade+0x900/0x900
[  375.768847]  ? check_preemption_disabled+0x48/0x280
[  375.773889]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  375.778822]  ? kasan_check_read+0x11/0x20
[  375.782964]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.788244]  ? rcu_softirq_qs+0x20/0x20
[  375.792252]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.797790]  ? oom_evaluate_task+0x302/0x540
[  375.802195]  out_of_memory+0xa84/0x1430
[  375.806198]  ? oom_killer_disable+0x3a0/0x3a0
[  375.810702]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  375.815657]  ? __ww_mutex_check_waiters+0x160/0x160
[  375.820729]  __alloc_pages_slowpath+0x2354/0x2e10
[  375.825610]  ? warn_alloc+0x120/0x120
[  375.829409]  ? mark_held_locks+0x130/0x130
[  375.833658]  ? find_get_entry+0xaae/0x1120
[  375.837911]  ? filemap_map_pages+0x1a20/0x1a20
[  375.842493]  ? zap_class+0x640/0x640
[  375.846207]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.851776]  ? check_preemption_disabled+0x48/0x280
[  375.856791]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.862355]  ? should_fail+0x22d/0xd01
[  375.866268]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  375.871387]  ? zap_class+0x640/0x640
[  375.875165]  ? __lock_is_held+0xb5/0x140
[  375.879236]  ? mark_held_locks+0x130/0x130
[  375.883471]  ? lock_release+0xa00/0xa00
[  375.887454]  ? perf_trace_sched_process_exec+0x860/0x860
[  375.892896]  ? xa_load+0x2ba/0x460
[  375.896429]  ? lock_downgrade+0x900/0x900
[  375.900574]  ? __might_sleep+0x95/0x190
[  375.904587]  __alloc_pages_nodemask+0xa80/0xde0
[  375.909257]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  375.914284]  ? __page_cache_alloc+0x191/0x5c0
[  375.918773]  ? xa_load+0x2e1/0x460
[  375.922322]  ? xa_clear_mark+0x40/0x40
[  375.926220]  ? zap_class+0x640/0x640
[  375.929949]  ? zap_class+0x640/0x640
[  375.933658]  ? zap_class+0x640/0x640
[  375.937368]  ? __do_page_cache_readahead+0x663/0x810
[  375.942511]  ? find_held_lock+0x36/0x1c0
[  375.946572]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  375.952113]  alloc_pages_current+0x173/0x350
[  375.956542]  __page_cache_alloc+0x38c/0x5c0
[  375.960905]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  375.965833]  ? kasan_check_read+0x11/0x20
[  375.969978]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.975269]  ? generic_perform_write+0x6a0/0x6a0
[  375.980058]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.985609]  ? check_preemption_disabled+0x48/0x280
[  375.990649]  filemap_fault+0x1595/0x25f0
[  375.994720]  ? __lock_page_or_retry+0xa00/0xa00
[  375.999385]  ? mark_held_locks+0x130/0x130
[  376.003626]  ? filemap_map_pages+0xd6b/0x1a20
[  376.008122]  ? lock_downgrade+0x900/0x900
[  376.012268]  ? check_preemption_disabled+0x48/0x280
[  376.017303]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  376.022231]  ? kasan_check_read+0x11/0x20
[  376.026376]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.031650]  ? rcu_softirq_qs+0x20/0x20
[  376.035660]  ? filemap_map_pages+0xd92/0x1a20
[  376.040192]  ? find_get_entries_tag+0x1400/0x1400
[  376.045037]  ? debug_object_destroy+0x2b0/0x2b0
[  376.049703]  ? lock_pi_update_atomic+0x150/0x150
[  376.054456]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.060031]  ? lock_acquire+0x1ed/0x520
[  376.064012]  ? ext4_filemap_fault+0x7a/0xad
[  376.068345]  ? lock_release+0xa00/0xa00
[  376.072335]  ? perf_trace_sched_process_exec+0x860/0x860
[  376.077802]  ? print_usage_bug+0xc0/0xc0
[  376.081866]  ? print_usage_bug+0xc0/0xc0
[  376.085937]  ? down_read+0x8d/0x120
[  376.089560]  ? ext4_filemap_fault+0x7a/0xad
[  376.093912]  ? __down_interruptible+0x700/0x700
[  376.098588]  ext4_filemap_fault+0x82/0xad
[  376.102740]  __do_fault+0x100/0x6b0
[  376.106377]  ? pmd_devmap_trans_unstable+0x220/0x220
[  376.111484]  ? mark_held_locks+0x130/0x130
[  376.115721]  ? mark_held_locks+0x130/0x130
[  376.119955]  ? debug_smp_processor_id+0x1c/0x20
[  376.124622]  ? perf_trace_lock+0x14d/0x7a0
[  376.128865]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.134405]  __handle_mm_fault+0x3ea0/0x5be0
[  376.138822]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  376.143683]  ? lock_is_held_type+0x210/0x210
[  376.148095]  ? ksys_dup3+0x680/0x680
[  376.151850]  ? zap_class+0x640/0x640
[  376.155567]  ? zap_class+0x640/0x640
[  376.159283]  ? __x64_sys_futex+0x53e/0x6a0
[  376.163539]  ? find_held_lock+0x36/0x1c0
[  376.167613]  ? handle_mm_fault+0x42a/0xc70
[  376.171863]  ? lock_downgrade+0x900/0x900
[  376.176033]  ? check_preemption_disabled+0x48/0x280
[  376.181080]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  376.186014]  ? kasan_check_read+0x11/0x20
[  376.190162]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.195435]  ? rcu_softirq_qs+0x20/0x20
[  376.199403]  ? trace_hardirqs_off_caller+0x310/0x310
[  376.204503]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.210054]  ? check_preemption_disabled+0x48/0x280
[  376.215120]  handle_mm_fault+0x54f/0xc70
[  376.219184]  ? __handle_mm_fault+0x5be0/0x5be0
[  376.223786]  ? find_vma+0x34/0x190
[  376.227325]  __do_page_fault+0x5e8/0xe60
[  376.231390]  ? trace_hardirqs_off+0xb8/0x310
[  376.235805]  do_page_fault+0xf2/0x7e0
[  376.239603]  ? vmalloc_sync_all+0x30/0x30
[  376.243746]  ? error_entry+0x70/0xd0
[  376.247492]  ? trace_hardirqs_off_caller+0xbb/0x310
[  376.252516]  ? trace_hardirqs_on_caller+0xc0/0x310
[  376.257469]  ? syscall_return_slowpath+0x5e0/0x5e0
[  376.262408]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  376.267251]  ? trace_hardirqs_on_caller+0x310/0x310
[  376.272286]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  376.277742]  ? prepare_exit_to_usermode+0x291/0x3b0
[  376.282769]  ? page_fault+0x8/0x30
[  376.286314]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  376.291161]  ? page_fault+0x8/0x30
[  376.294706]  page_fault+0x1e/0x30
[  376.298156] RIP: 0033:0x40f9c0
[  376.301362] Code: Bad RIP value.
[  376.304739] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  376.310101] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  376.317372] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  376.324638] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  376.331905] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  376.339168] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  376.346454] warn_alloc_show_mem: 1 callbacks suppressed
[  376.346465] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  376.346467] Mem-Info:
[  376.346497] active_anon:54833 inactive_anon:712 isolated_anon:0
[  376.346497]  active_file:11 inactive_file:12 isolated_file:0
[  376.346497]  unevictable:0 dirty:0 writeback:0 unstable:0
[  376.346497]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  376.346497]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  376.346497]  free:13768 free_pcp:742 free_cma:0
[  376.351841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  376.358596] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  376.361000] Call Trace:
[  376.393866] 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
[  376.403213]  dump_stack+0x244/0x39d
[  376.430770] lowmem_reserve[]: 0 2818 6321 6321
[  376.433354]  ? dump_stack_print_info.cold.1+0x20/0x20
[  376.459440] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  376.463066]  warn_alloc.cold.116+0xb7/0x1bd
[  376.467615] lowmem_reserve[]: 0 0 3503 3503
[  376.472799]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  376.500530] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  376.504840]  ? lock_downgrade+0x900/0x900
[  376.509180] lowmem_reserve[]: 0 0 0 0
[  376.514033]  ? trace_hardirqs_off+0xb8/0x310
[  376.543154] 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
[  376.547325]  ? trace_hardirqs_off+0xb8/0x310
[  376.551096] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  376.555498]  __alloc_pages_slowpath+0x26e8/0x2e10
[  376.569003] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  376.573425]  ? warn_alloc+0x120/0x120
[  376.589099] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  376.593926]  ? print_usage_bug+0xc0/0xc0
[  376.609251] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  376.613055]  ? warn_alloc+0x120/0x120
[  376.621868] 782 total pagecache pages
[  376.625918]  ? warn_alloc+0x120/0x120
[  376.634499] 0 pages in swap cache
[  376.638287]  ? print_usage_bug+0xc0/0xc0
[  376.642063] Swap cache stats: add 0, delete 0, find 0/0
[  376.645866]  ? print_usage_bug+0xc0/0xc0
[  376.649290] Free swap  = 0kB
[  376.649299] Total swap = 0kB
[  376.653353]  ? __lock_acquire+0x62f/0x4c20
[  376.658690] 1965979 pages RAM
[  376.662742]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.665729] 0 pages HighMem/MovableOnly
[  376.665736] 342853 pages reserved
[  376.668770]  ? should_fail+0x22d/0xd01
[  376.672983] 0 pages cma reserved
[  376.676086]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  376.681647] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  376.685551]  ? __lock_acquire+0x62f/0x4c20
[  376.689084] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  376.692877]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  376.696213] syz-fuzzer cpuset=/ mems_allowed=0
[  376.701301]  ? __lock_acquire+0x62f/0x4c20
[  376.736090]  ? should_fail+0x22d/0xd01
[  376.740012]  ? find_held_lock+0x36/0x1c0
[  376.744095]  ? mark_held_locks+0x130/0x130
[  376.748348]  ? mark_held_locks+0x130/0x130
[  376.752582]  ? zap_class+0x640/0x640
[  376.756312]  ? mark_held_locks+0xc7/0x130
[  376.760511]  ? do_raw_spin_unlock+0xa7/0x330
[  376.764951]  ? zap_class+0x640/0x640
[  376.768662]  ? print_usage_bug+0xc0/0xc0
[  376.772787]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.778335]  ? check_preemption_disabled+0x48/0x280
[  376.783390]  ? __lock_is_held+0xb5/0x140
[  376.787457]  __alloc_pages_nodemask+0xa80/0xde0
[  376.792122]  ? zap_class+0x640/0x640
[  376.795835]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  376.801148]  ? find_held_lock+0x36/0x1c0
[  376.805221]  ? ____cache_alloc_node+0x1c7/0x1e0
[  376.809908]  ? lock_downgrade+0x900/0x900
[  376.814055]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.819593]  cache_grow_begin+0xa5/0x8c0
[  376.823647]  ? do_raw_spin_unlock+0xa7/0x330
[  376.828058]  fallback_alloc+0x204/0x2e0
[  376.832038]  ____cache_alloc_node+0x1c7/0x1e0
[  376.836536]  kmem_cache_alloc_node+0xe3/0x730
[  376.841065]  ? ipv6_get_ifaddr+0x42e/0x620
[  376.845322]  __alloc_skb+0x119/0x770
[  376.849045]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.854320]  ? netdev_alloc_frag+0x1f0/0x1f0
[  376.858724]  ? lock_downgrade+0x900/0x900
[  376.862917]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.868478]  ? refcount_sub_and_test_checked+0x203/0x310
[  376.873938]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  376.879378]  ? addrconf_rs_timer+0x690/0x690
[  376.883787]  ndisc_alloc_skb+0x144/0x340
[  376.887846]  ndisc_send_rs+0x331/0x6e0
[  376.891743]  addrconf_rs_timer+0x314/0x690
[  376.895977]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.900229]  call_timer_fn+0x272/0x920
[  376.904135]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.908367]  ? process_timeout+0x40/0x40
[  376.912449]  ? __run_timers+0x7da/0xc70
[  376.916438]  ? _raw_spin_unlock_irq+0x27/0x80
[  376.920938]  ? _raw_spin_unlock_irq+0x27/0x80
[  376.925443]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.929683]  ? lockdep_hardirqs_on+0x296/0x5b0
[  376.934298]  ? trace_hardirqs_on+0xbd/0x310
[  376.938654]  ? kasan_check_read+0x11/0x20
[  376.942821]  ? __run_timers+0x7da/0xc70
[  376.946813]  ? trace_hardirqs_off_caller+0x310/0x310
[  376.951921]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.956163]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.960395]  __run_timers+0x7e5/0xc70
[  376.964220]  ? timer_fixup_init+0x70/0x70
[  376.968382]  ? _raw_spin_unlock_irq+0x27/0x80
[  376.972873]  ? _raw_spin_unlock_irq+0x27/0x80
[  376.977384]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  376.981966]  ? trace_hardirqs_on+0xbd/0x310
[  376.986308]  ? kasan_check_read+0x11/0x20
[  376.990459]  ? finish_task_switch+0x1f4/0x910
[  376.994954]  ? trace_hardirqs_off_caller+0x310/0x310
[  377.000069]  ? compat_start_thread+0x80/0x80
[  377.004496]  ? pvclock_read_flags+0x160/0x160
[  377.008985]  ? __switch_to_asm+0x34/0x70
[  377.013059]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.018595]  ? check_preemption_disabled+0x48/0x280
[  377.023635]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  377.029190]  ? rcu_pm_notify+0xc0/0xc0
[  377.033075]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.038607]  ? check_preemption_disabled+0x48/0x280
[  377.043623]  run_timer_softirq+0x52/0xb0
[  377.047705]  ? rcu_read_lock_sched_held+0x14f/0x180
[  377.052723]  __do_softirq+0x308/0xb7e
[  377.056522]  ? retint_kernel+0x2d/0x2d
[  377.060422]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  377.065542]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  377.071017]  ? trace_hardirqs_on+0x310/0x310
[  377.075474]  ? schedule+0x108/0x460
[  377.079101]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  377.083862]  ? trace_hardirqs_off+0xb8/0x310
[  377.088282]  ? smpboot_thread_fn+0x68b/0xa00
[  377.092699]  ? trace_hardirqs_on+0x310/0x310
[  377.097121]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.102654]  ? check_preemption_disabled+0x48/0x280
[  377.107667]  ? takeover_tasklets+0xa90/0xa90
[  377.112097]  run_ksoftirqd+0x5e/0x100
[  377.115913]  smpboot_thread_fn+0x68b/0xa00
[  377.120148]  ? sort_range+0x30/0x30
[  377.123802]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  377.128903]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.134442]  ? __kthread_parkme+0xfb/0x1a0
[  377.138682]  ? sort_range+0x30/0x30
[  377.142307]  kthread+0x35a/0x440
[  377.145693]  ? kthread_stop+0x900/0x900
[  377.149688]  ret_from_fork+0x3a/0x50
[  377.153419] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  377.153532] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  377.160375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  377.160380] Call Trace:
[  377.160387]  <IRQ>
[  377.160403]  dump_stack+0x244/0x39d
[  377.160421]  ? dump_stack_print_info.cold.1+0x20/0x20
[  377.166950] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  377.176295]  warn_alloc.cold.116+0xb7/0x1bd
[  377.178854] ksoftirqd/0 cpuset=/ mems_allowed=0
[  377.181001]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  377.213860]  ? lock_downgrade+0x900/0x900
[  377.218017]  ? trace_hardirqs_off+0xb8/0x310
[  377.222432]  ? trace_hardirqs_off+0xb8/0x310
[  377.226845]  __alloc_pages_slowpath+0x26e8/0x2e10
[  377.231711]  ? warn_alloc+0x120/0x120
[  377.235512]  ? print_usage_bug+0xc0/0xc0
[  377.239574]  ? warn_alloc+0x120/0x120
[  377.243375]  ? warn_alloc+0x120/0x120
[  377.247187]  ? print_usage_bug+0xc0/0xc0
[  377.251252]  ? print_usage_bug+0xc0/0xc0
[  377.255328]  ? __lock_acquire+0x62f/0x4c20
[  377.259569]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.265102]  ? should_fail+0x22d/0xd01
[  377.268988]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  377.274127]  ? __lock_acquire+0x62f/0x4c20
[  377.278380]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  377.283482]  ? __lock_acquire+0x62f/0x4c20
[  377.287714]  ? should_fail+0x22d/0xd01
[  377.291644]  ? mark_held_locks+0x130/0x130
[  377.295883]  ? mark_held_locks+0x130/0x130
[  377.300110]  ? zap_class+0x640/0x640
[  377.303826]  ? zap_class+0x640/0x640
[  377.307550]  ? print_usage_bug+0xc0/0xc0
[  377.311635]  ? wq_watchdog_touch+0x9c/0xfe
[  377.315866]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.321401]  ? check_preemption_disabled+0x48/0x280
[  377.326420]  ? __lock_is_held+0xb5/0x140
[  377.330485]  __alloc_pages_nodemask+0xa80/0xde0
[  377.335151]  ? zap_class+0x640/0x640
[  377.338862]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  377.343901]  ? find_held_lock+0x36/0x1c0
[  377.347963]  ? ____cache_alloc_node+0x1c7/0x1e0
[  377.353503]  ? lock_downgrade+0x900/0x900
[  377.357669]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.363205]  cache_grow_begin+0xa5/0x8c0
[  377.367259]  ? do_raw_spin_unlock+0xa7/0x330
[  377.371703]  fallback_alloc+0x204/0x2e0
[  377.375686]  ____cache_alloc_node+0x1c7/0x1e0
[  377.380191]  kmem_cache_alloc_node+0xe3/0x730
[  377.384687]  ? ipv6_get_ifaddr+0x42e/0x620
[  377.388932]  __alloc_skb+0x119/0x770
[  377.392660]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.397955]  ? netdev_alloc_frag+0x1f0/0x1f0
[  377.402404]  ? lock_downgrade+0x900/0x900
[  377.406596]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.412137]  ? refcount_sub_and_test_checked+0x203/0x310
[  377.417589]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  377.423042]  ? addrconf_rs_timer+0x690/0x690
[  377.427490]  ndisc_alloc_skb+0x144/0x340
[  377.431568]  ndisc_send_rs+0x331/0x6e0
[  377.435466]  addrconf_rs_timer+0x314/0x690
[  377.439705]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.443948]  call_timer_fn+0x272/0x920
[  377.447850]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.452097]  ? process_timeout+0x40/0x40
[  377.456174]  ? mark_held_locks+0xc7/0x130
[  377.460327]  ? _raw_spin_unlock_irq+0x27/0x80
[  377.464822]  ? _raw_spin_unlock_irq+0x27/0x80
[  377.469314]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.473546]  ? lockdep_hardirqs_on+0x296/0x5b0
[  377.478163]  ? trace_hardirqs_on+0xbd/0x310
[  377.482487]  ? kasan_check_read+0x11/0x20
[  377.486637]  ? __run_timers+0x7da/0xc70
[  377.490614]  ? trace_hardirqs_off_caller+0x310/0x310
[  377.495745]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.499983]  __run_timers+0x7e5/0xc70
[  377.503809]  ? timer_fixup_init+0x70/0x70
[  377.507962]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  377.513010]  ? zap_class+0x640/0x640
[  377.516731]  ? print_usage_bug+0xc0/0xc0
[  377.520807]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  377.526015]  ? find_held_lock+0x36/0x1c0
[  377.530084]  ? zap_class+0x640/0x640
[  377.533867]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.539411]  ? check_preemption_disabled+0x48/0x280
[  377.544457]  ? __lock_is_held+0xb5/0x140
[  377.548525]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.554095]  ? check_preemption_disabled+0x48/0x280
[  377.559122]  run_timer_softirq+0x52/0xb0
[  377.563183]  ? rcu_read_lock_sched_held+0x14f/0x180
[  377.568198]  __do_softirq+0x308/0xb7e
[  377.572008]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  377.576503]  ? lock_downgrade+0x900/0x900
[  377.580659]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  377.585778]  ? pvclock_read_flags+0x160/0x160
[  377.590274]  ? lapic_next_event+0x5a/0x90
[  377.594424]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.600003]  ? kvm_clock_read+0x18/0x30
[  377.603982]  ? kvm_sched_clock_read+0x9/0x20
[  377.608398]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.613936]  ? check_preemption_disabled+0x48/0x280
[  377.618961]  irq_exit+0x17f/0x1c0
[  377.622426]  smp_apic_timer_interrupt+0x1cb/0x760
[  377.627271]  ? smp_call_function_single_interrupt+0x159/0x650
[  377.633170]  ? smp_call_function_single_interrupt+0x650/0x650
[  377.639055]  ? interrupt_entry+0xb5/0xc0
[  377.643136]  ? trace_hardirqs_off_caller+0xbb/0x310
[  377.648154]  ? trace_hardirqs_off_caller+0xbb/0x310
[  377.653170]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  377.658020]  ? trace_hardirqs_on_caller+0x310/0x310
[  377.663033]  ? trace_hardirqs_on_caller+0x310/0x310
[  377.668214]  ? task_prio+0x50/0x50
[  377.671760]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.677296]  ? check_preemption_disabled+0x48/0x280
[  377.682313]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  377.687162]  apic_timer_interrupt+0xf/0x20
[  377.691415]  </IRQ>
[  377.693668] RIP: 0010:dump_stack+0x358/0x39d
[  377.698074] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  377.716967] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  377.724674] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  377.731939] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  377.739197] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  377.746475] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  377.753741] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  377.761032]  ? dump_stack+0x34f/0x39d
[  377.764859]  ? dump_stack_print_info.cold.1+0x20/0x20
[  377.770052]  ? mark_held_locks+0x130/0x130
[  377.774287]  ? mark_held_locks+0x130/0x130
[  377.778525]  dump_header+0x27b/0xf72
[  377.782247]  ? pagefault_out_of_memory+0x197/0x197
[  377.787183]  ? __lock_acquire+0x62f/0x4c20
[  377.791418]  ? percpu_ref_get_many+0x240/0x240
[  377.796011]  ? print_usage_bug+0xc0/0xc0
[  377.800599]  ? zap_class+0x640/0x640
[  377.804331]  ? print_usage_bug+0xc0/0xc0
[  377.808392]  ? print_usage_bug+0xc0/0xc0
[  377.812456]  ? zap_class+0x640/0x640
[  377.816174]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.821730]  ? find_held_lock+0x36/0x1c0
[  377.825816]  ? mark_held_locks+0xc7/0x130
[  377.829962]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  377.835070]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  377.840171]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  377.844755]  ? trace_hardirqs_on+0xbd/0x310
[  377.849105]  ? kasan_check_read+0x11/0x20
[  377.853250]  ? ___ratelimit+0x3b4/0x672
[  377.857255]  ? trace_hardirqs_off_caller+0x310/0x310
[  377.862359]  ? trace_hardirqs_on+0x310/0x310
[  377.866774]  ? lock_downgrade+0x900/0x900
[  377.870938]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  377.876044]  ? ___ratelimit+0x3b9/0x672
[  377.880031]  ? idr_get_free+0xf70/0xf70
[  377.884015]  ? find_held_lock+0x36/0x1c0
[  377.888090]  oom_kill_process.cold.27+0x10/0x903
[  377.892868]  ? zap_class+0x640/0x640
[  377.896583]  ? check_preemption_disabled+0x48/0x280
[  377.901615]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  377.906539]  ? kasan_check_read+0x11/0x20
[  377.910698]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.915975]  ? oom_evaluate_task+0x540/0x540
[  377.920415]  ? find_held_lock+0x36/0x1c0
[  377.924496]  ? out_of_memory+0x974/0x1430
[  377.928646]  ? lock_downgrade+0x900/0x900
[  377.932792]  ? check_preemption_disabled+0x48/0x280
[  377.937811]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  377.942753]  ? kasan_check_read+0x11/0x20
[  377.946901]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.952191]  ? rcu_softirq_qs+0x20/0x20
[  377.956204]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.961753]  ? oom_evaluate_task+0x302/0x540
[  377.966196]  out_of_memory+0xa84/0x1430
[  377.970212]  ? oom_killer_disable+0x3a0/0x3a0
[  377.974713]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  377.979658]  ? __ww_mutex_check_waiters+0x160/0x160
[  377.984691]  __alloc_pages_slowpath+0x2354/0x2e10
[  377.989561]  ? warn_alloc+0x120/0x120
[  377.993360]  ? mark_held_locks+0x130/0x130
[  377.997622]  ? find_get_entry+0xaae/0x1120
[  378.001882]  ? filemap_map_pages+0x1a20/0x1a20
[  378.006468]  ? zap_class+0x640/0x640
[  378.010205]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.015774]  ? check_preemption_disabled+0x48/0x280
[  378.020798]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.026339]  ? should_fail+0x22d/0xd01
[  378.030252]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  378.035356]  ? zap_class+0x640/0x640
[  378.039093]  ? __lock_is_held+0xb5/0x140
[  378.043159]  ? mark_held_locks+0x130/0x130
[  378.047396]  ? lock_release+0xa00/0xa00
[  378.051374]  ? perf_trace_sched_process_exec+0x860/0x860
[  378.056827]  ? xa_load+0x2ba/0x460
[  378.060369]  ? lock_downgrade+0x900/0x900
[  378.064522]  ? __might_sleep+0x95/0x190
[  378.068517]  __alloc_pages_nodemask+0xa80/0xde0
[  378.073198]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  378.078219]  ? __page_cache_alloc+0x191/0x5c0
[  378.082713]  ? xa_load+0x2e1/0x460
[  378.086256]  ? xa_clear_mark+0x40/0x40
[  378.090150]  ? zap_class+0x640/0x640
[  378.093873]  ? zap_class+0x640/0x640
[  378.097610]  ? zap_class+0x640/0x640
[  378.101322]  ? __do_page_cache_readahead+0x663/0x810
[  378.106429]  ? find_held_lock+0x36/0x1c0
[  378.110511]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  378.116055]  alloc_pages_current+0x173/0x350
[  378.120468]  __page_cache_alloc+0x38c/0x5c0
[  378.124801]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  378.129728]  ? kasan_check_read+0x11/0x20
[  378.133871]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.139148]  ? generic_perform_write+0x6a0/0x6a0
[  378.143933]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.149471]  ? check_preemption_disabled+0x48/0x280
[  378.154490]  filemap_fault+0x1595/0x25f0
[  378.158562]  ? __lock_page_or_retry+0xa00/0xa00
[  378.163248]  ? mark_held_locks+0x130/0x130
[  378.167488]  ? filemap_map_pages+0xd6b/0x1a20
[  378.171979]  ? lock_downgrade+0x900/0x900
[  378.176144]  ? check_preemption_disabled+0x48/0x280
[  378.181164]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  378.186091]  ? kasan_check_read+0x11/0x20
[  378.190237]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.195508]  ? rcu_softirq_qs+0x20/0x20
[  378.199489]  ? filemap_map_pages+0xd92/0x1a20
[  378.204003]  ? find_get_entries_tag+0x1400/0x1400
[  378.208846]  ? debug_object_destroy+0x2b0/0x2b0
[  378.213513]  ? lock_pi_update_atomic+0x150/0x150
[  378.218267]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.223811]  ? lock_acquire+0x1ed/0x520
[  378.227823]  ? ext4_filemap_fault+0x7a/0xad
[  378.232144]  ? lock_release+0xa00/0xa00
[  378.236122]  ? perf_trace_sched_process_exec+0x860/0x860
[  378.241572]  ? print_usage_bug+0xc0/0xc0
[  378.245670]  ? print_usage_bug+0xc0/0xc0
[  378.249804]  ? down_read+0x8d/0x120
[  378.253436]  ? ext4_filemap_fault+0x7a/0xad
[  378.257774]  ? __down_interruptible+0x700/0x700
[  378.262453]  ext4_filemap_fault+0x82/0xad
[  378.266603]  __do_fault+0x100/0x6b0
[  378.270233]  ? pmd_devmap_trans_unstable+0x220/0x220
[  378.275334]  ? mark_held_locks+0x130/0x130
[  378.279570]  ? mark_held_locks+0x130/0x130
[  378.283822]  ? debug_smp_processor_id+0x1c/0x20
[  378.288494]  ? perf_trace_lock+0x14d/0x7a0
[  378.292756]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.298322]  __handle_mm_fault+0x3ea0/0x5be0
[  378.302742]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  378.307609]  ? lock_is_held_type+0x210/0x210
[  378.312029]  ? ksys_dup3+0x680/0x680
[  378.315755]  ? zap_class+0x640/0x640
[  378.319473]  ? zap_class+0x640/0x640
[  378.323190]  ? __x64_sys_futex+0x53e/0x6a0
[  378.327430]  ? find_held_lock+0x36/0x1c0
[  378.331506]  ? handle_mm_fault+0x42a/0xc70
[  378.335747]  ? lock_downgrade+0x900/0x900
[  378.339931]  ? check_preemption_disabled+0x48/0x280
[  378.344964]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  378.349917]  ? kasan_check_read+0x11/0x20
[  378.354067]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.359346]  ? rcu_softirq_qs+0x20/0x20
[  378.363339]  ? trace_hardirqs_off_caller+0x310/0x310
[  378.368474]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.374018]  ? check_preemption_disabled+0x48/0x280
[  378.379040]  handle_mm_fault+0x54f/0xc70
[  378.383103]  ? __handle_mm_fault+0x5be0/0x5be0
[  378.387693]  ? find_vma+0x34/0x190
[  378.391239]  __do_page_fault+0x5e8/0xe60
[  378.395315]  ? trace_hardirqs_off+0xb8/0x310
[  378.399732]  do_page_fault+0xf2/0x7e0
[  378.403579]  ? vmalloc_sync_all+0x30/0x30
[  378.407742]  ? error_entry+0x70/0xd0
[  378.411460]  ? trace_hardirqs_off_caller+0xbb/0x310
[  378.416517]  ? trace_hardirqs_on_caller+0xc0/0x310
[  378.421447]  ? syscall_return_slowpath+0x5e0/0x5e0
[  378.426375]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.431220]  ? trace_hardirqs_on_caller+0x310/0x310
[  378.436249]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  378.441700]  ? prepare_exit_to_usermode+0x291/0x3b0
[  378.446714]  ? page_fault+0x8/0x30
[  378.450285]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.455132]  ? page_fault+0x8/0x30
[  378.458672]  page_fault+0x1e/0x30
[  378.462139] RIP: 0033:0x40f9c0
[  378.465339] Code: Bad RIP value.
[  378.468714] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  378.474076] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  378.481345] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  378.488611] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  378.495876] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  378.503140] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  378.510480] warn_alloc_show_mem: 1 callbacks suppressed
[  378.510491] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  378.510493] Mem-Info:
[  378.510522] active_anon:54833 inactive_anon:712 isolated_anon:0
[  378.510522]  active_file:11 inactive_file:12 isolated_file:0
[  378.510522]  unevictable:0 dirty:0 writeback:0 unstable:0
[  378.510522]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  378.510522]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  378.510522]  free:13768 free_pcp:742 free_cma:0
[  378.515862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  378.522612] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  378.525011] Call Trace:
[  378.557888] 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
[  378.567238]  dump_stack+0x244/0x39d
[  378.594797] lowmem_reserve[]: 0 2818 6321 6321
[  378.597377]  ? dump_stack_print_info.cold.1+0x20/0x20
[  378.623464] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  378.627096]  warn_alloc.cold.116+0xb7/0x1bd
[  378.631641] lowmem_reserve[]: 0 0 3503 3503
[  378.636828]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  378.664582] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  378.668898]  ? lock_downgrade+0x900/0x900
[  378.673191] lowmem_reserve[]: 0 0 0 0
[  378.678037]  ? trace_hardirqs_off+0xb8/0x310
[  378.707173] 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
[  378.711323]  ? trace_hardirqs_off+0xb8/0x310
[  378.715115] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  378.719525]  __alloc_pages_slowpath+0x26e8/0x2e10
[  378.733028] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  378.737489]  ? warn_alloc+0x120/0x120
[  378.753145] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  378.757984]  ? print_usage_bug+0xc0/0xc0
[  378.773317] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  378.777110]  ? warn_alloc+0x120/0x120
[  378.785918] 782 total pagecache pages
[  378.789979]  ? warn_alloc+0x120/0x120
[  378.799018] 0 pages in swap cache
[  378.802821]  ? print_usage_bug+0xc0/0xc0
[  378.806596] Swap cache stats: add 0, delete 0, find 0/0
[  378.810389]  ? print_usage_bug+0xc0/0xc0
[  378.813815] Free swap  = 0kB
[  378.817868]  ? __lock_acquire+0x62f/0x4c20
[  378.823205] Total swap = 0kB
[  378.827288]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.830278] 1965979 pages RAM
[  378.834519]  ? should_fail+0x22d/0xd01
[  378.837549] 0 pages HighMem/MovableOnly
[  378.843095]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  378.846174] 342853 pages reserved
[  378.850064]  ? __lock_acquire+0x62f/0x4c20
[  378.854023] 0 pages cma reserved
[  378.859189]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  378.862729] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  378.866891]  ? __lock_acquire+0x62f/0x4c20
[  378.866909]  ? should_fail+0x22d/0xd01
[  378.870346] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  378.875364]  ? find_held_lock+0x36/0x1c0
[  378.881832] syz-fuzzer cpuset=/ mems_allowed=0
[  378.886071]  ? mark_held_locks+0x130/0x130
[  378.913088]  ? mark_held_locks+0x130/0x130
[  378.917323]  ? zap_class+0x640/0x640
[  378.921043]  ? zap_class+0x640/0x640
[  378.924761]  ? print_usage_bug+0xc0/0xc0
[  378.928824]  ? do_raw_spin_unlock+0xa7/0x330
[  378.933236]  ? zap_class+0x640/0x640
[  378.936973]  ? print_usage_bug+0xc0/0xc0
[  378.941063]  ? wq_watchdog_touch+0x9c/0xfe
[  378.945308]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.950873]  ? check_preemption_disabled+0x48/0x280
[  378.955904]  ? __lock_is_held+0xb5/0x140
[  378.959991]  __alloc_pages_nodemask+0xa80/0xde0
[  378.964689]  ? zap_class+0x640/0x640
[  378.968672]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  378.973698]  ? find_held_lock+0x36/0x1c0
[  378.977773]  ? ____cache_alloc_node+0x1c7/0x1e0
[  378.982448]  ? lock_downgrade+0x900/0x900
[  378.986637]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.992188]  cache_grow_begin+0xa5/0x8c0
[  378.996263]  ? do_raw_spin_unlock+0xa7/0x330
[  379.000784]  fallback_alloc+0x204/0x2e0
[  379.004780]  ____cache_alloc_node+0x1c7/0x1e0
[  379.009293]  kmem_cache_alloc_node+0xe3/0x730
[  379.013792]  ? ipv6_get_ifaddr+0x42e/0x620
[  379.018047]  __alloc_skb+0x119/0x770
[  379.021766]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.027054]  ? netdev_alloc_frag+0x1f0/0x1f0
[  379.031486]  ? lock_downgrade+0x900/0x900
[  379.035661]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.041219]  ? refcount_sub_and_test_checked+0x203/0x310
[  379.046677]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  379.052132]  ? addrconf_rs_timer+0x690/0x690
[  379.056554]  ndisc_alloc_skb+0x144/0x340
[  379.060641]  ndisc_send_rs+0x331/0x6e0
[  379.064542]  addrconf_rs_timer+0x314/0x690
[  379.068786]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.073040]  call_timer_fn+0x272/0x920
[  379.076944]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.081200]  ? process_timeout+0x40/0x40
[  379.085282]  ? __run_timers+0x7da/0xc70
[  379.089287]  ? _raw_spin_unlock_irq+0x27/0x80
[  379.093828]  ? _raw_spin_unlock_irq+0x27/0x80
[  379.098331]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.102577]  ? lockdep_hardirqs_on+0x296/0x5b0
[  379.107171]  ? trace_hardirqs_on+0xbd/0x310
[  379.111499]  ? kasan_check_read+0x11/0x20
[  379.115653]  ? __run_timers+0x7da/0xc70
[  379.119647]  ? trace_hardirqs_off_caller+0x310/0x310
[  379.124764]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.129010]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.133246]  __run_timers+0x7e5/0xc70
[  379.137071]  ? timer_fixup_init+0x70/0x70
[  379.141237]  ? _raw_spin_unlock_irq+0x27/0x80
[  379.145736]  ? _raw_spin_unlock_irq+0x27/0x80
[  379.150240]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  379.154834]  ? trace_hardirqs_on+0xbd/0x310
[  379.159158]  ? kasan_check_read+0x11/0x20
[  379.163313]  ? finish_task_switch+0x1f4/0x910
[  379.167818]  ? trace_hardirqs_off_caller+0x310/0x310
[  379.172923]  ? compat_start_thread+0x80/0x80
[  379.177385]  ? pvclock_read_flags+0x160/0x160
[  379.181880]  ? __switch_to_asm+0x34/0x70
[  379.185956]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.191526]  ? check_preemption_disabled+0x48/0x280
[  379.196556]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  379.202096]  ? rcu_pm_notify+0xc0/0xc0
[  379.206010]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.211554]  ? check_preemption_disabled+0x48/0x280
[  379.216594]  run_timer_softirq+0x52/0xb0
[  379.220658]  ? rcu_read_lock_sched_held+0x14f/0x180
[  379.225706]  __do_softirq+0x308/0xb7e
[  379.229512]  ? retint_kernel+0x2d/0x2d
[  379.233405]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  379.238514]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  379.243967]  ? trace_hardirqs_on+0x310/0x310
[  379.248390]  ? schedule+0x108/0x460
[  379.252029]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  379.256830]  ? trace_hardirqs_off+0xb8/0x310
[  379.261243]  ? smpboot_thread_fn+0x68b/0xa00
[  379.265692]  ? trace_hardirqs_on+0x310/0x310
[  379.270122]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.275661]  ? check_preemption_disabled+0x48/0x280
[  379.280681]  ? takeover_tasklets+0xa90/0xa90
[  379.285111]  run_ksoftirqd+0x5e/0x100
[  379.288952]  smpboot_thread_fn+0x68b/0xa00
[  379.293192]  ? sort_range+0x30/0x30
[  379.296824]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  379.301931]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.307489]  ? __kthread_parkme+0xfb/0x1a0
[  379.311730]  ? sort_range+0x30/0x30
[  379.315376]  kthread+0x35a/0x440
[  379.318845]  ? kthread_stop+0x900/0x900
[  379.322820]  ret_from_fork+0x3a/0x50
[  379.326551] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  379.326635] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  379.333478] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  379.333484] Call Trace:
[  379.333490]  <IRQ>
[  379.333509]  dump_stack+0x244/0x39d
[  379.333528]  ? dump_stack_print_info.cold.1+0x20/0x20
[  379.340126] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  379.349390]  warn_alloc.cold.116+0xb7/0x1bd
[  379.351950] ksoftirqd/0 cpuset=/ mems_allowed=0
[  379.354098]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  379.387056]  ? lock_downgrade+0x900/0x900
[  379.391221]  ? trace_hardirqs_off+0xb8/0x310
[  379.395641]  ? trace_hardirqs_off+0xb8/0x310
[  379.400073]  __alloc_pages_slowpath+0x26e8/0x2e10
[  379.404949]  ? warn_alloc+0x120/0x120
[  379.408753]  ? print_usage_bug+0xc0/0xc0
[  379.412829]  ? warn_alloc+0x120/0x120
[  379.416646]  ? warn_alloc+0x120/0x120
[  379.420451]  ? print_usage_bug+0xc0/0xc0
[  379.424515]  ? kvm_clock_read+0x18/0x30
[  379.428517]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  379.433542]  ? print_usage_bug+0xc0/0xc0
[  379.437608]  ? __lock_acquire+0x62f/0x4c20
[  379.441857]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.447418]  ? should_fail+0x22d/0xd01
[  379.451311]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.456597]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  379.461720]  ? __lock_acquire+0x62f/0x4c20
[  379.465962]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  379.471107]  ? __lock_acquire+0x62f/0x4c20
[  379.475342]  ? should_fail+0x22d/0xd01
[  379.479246]  ? rcu_irq_exit+0x1a2/0x390
[  379.483234]  ? mark_held_locks+0x130/0x130
[  379.487478]  ? mark_held_locks+0x130/0x130
[  379.491722]  ? mark_held_locks+0xc7/0x130
[  379.495875]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  379.500895]  ? zap_class+0x640/0x640
[  379.504613]  ? print_usage_bug+0xc0/0xc0
[  379.508683]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.514228]  ? check_preemption_disabled+0x48/0x280
[  379.519272]  ? __lock_is_held+0xb5/0x140
[  379.523372]  __alloc_pages_nodemask+0xa80/0xde0
[  379.528086]  ? zap_class+0x640/0x640
[  379.531822]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  379.536868]  ? find_held_lock+0x36/0x1c0
[  379.540947]  ? ____cache_alloc_node+0x1c7/0x1e0
[  379.545627]  ? lock_downgrade+0x900/0x900
[  379.549791]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.555337]  cache_grow_begin+0xa5/0x8c0
[  379.559431]  ? do_raw_spin_unlock+0xa7/0x330
[  379.563860]  fallback_alloc+0x204/0x2e0
[  379.567843]  ____cache_alloc_node+0x1c7/0x1e0
[  379.572360]  kmem_cache_alloc_node+0xe3/0x730
[  379.576859]  ? ipv6_get_ifaddr+0x42e/0x620
[  379.581108]  __alloc_skb+0x119/0x770
[  379.584822]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.590109]  ? netdev_alloc_frag+0x1f0/0x1f0
[  379.594526]  ? lock_downgrade+0x900/0x900
[  379.598700]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.604241]  ? refcount_sub_and_test_checked+0x203/0x310
[  379.609713]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  379.615167]  ? addrconf_rs_timer+0x690/0x690
[  379.619591]  ndisc_alloc_skb+0x144/0x340
[  379.623662]  ndisc_send_rs+0x331/0x6e0
[  379.627574]  addrconf_rs_timer+0x314/0x690
[  379.631816]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.636096]  call_timer_fn+0x272/0x920
[  379.639985]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.644247]  ? process_timeout+0x40/0x40
[  379.648340]  ? mark_held_locks+0xc7/0x130
[  379.652493]  ? _raw_spin_unlock_irq+0x27/0x80
[  379.656987]  ? _raw_spin_unlock_irq+0x27/0x80
[  379.661490]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.665731]  ? lockdep_hardirqs_on+0x296/0x5b0
[  379.670651]  ? trace_hardirqs_on+0xbd/0x310
[  379.674973]  ? kasan_check_read+0x11/0x20
[  379.679140]  ? __run_timers+0x7da/0xc70
[  379.683118]  ? trace_hardirqs_off_caller+0x310/0x310
[  379.688238]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.692537]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.696774]  __run_timers+0x7e5/0xc70
[  379.700584]  ? timer_fixup_init+0x70/0x70
[  379.704737]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  379.709758]  ? zap_class+0x640/0x640
[  379.713491]  ? print_usage_bug+0xc0/0xc0
[  379.717574]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  379.722778]  ? find_held_lock+0x36/0x1c0
[  379.726844]  ? zap_class+0x640/0x640
[  379.730565]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.736108]  ? check_preemption_disabled+0x48/0x280
[  379.741152]  ? __lock_is_held+0xb5/0x140
[  379.745243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.750804]  ? check_preemption_disabled+0x48/0x280
[  379.755828]  run_timer_softirq+0x52/0xb0
[  379.759891]  ? rcu_read_lock_sched_held+0x14f/0x180
[  379.764924]  __do_softirq+0x308/0xb7e
[  379.768728]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  379.773222]  ? lock_downgrade+0x900/0x900
[  379.777378]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  379.782510]  ? pvclock_read_flags+0x160/0x160
[  379.787018]  ? lapic_next_event+0x5a/0x90
[  379.791170]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.796717]  ? kvm_clock_read+0x18/0x30
[  379.800724]  ? kvm_sched_clock_read+0x9/0x20
[  379.805135]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.810677]  ? check_preemption_disabled+0x48/0x280
[  379.815707]  irq_exit+0x17f/0x1c0
[  379.819170]  smp_apic_timer_interrupt+0x1cb/0x760
[  379.824022]  ? smp_call_function_single_interrupt+0x159/0x650
[  379.829912]  ? smp_call_function_single_interrupt+0x650/0x650
[  379.835800]  ? interrupt_entry+0xb5/0xc0
[  379.839866]  ? trace_hardirqs_off_caller+0xbb/0x310
[  379.844884]  ? trace_hardirqs_off_caller+0xbb/0x310
[  379.849908]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.854757]  ? trace_hardirqs_on_caller+0x310/0x310
[  379.859789]  ? trace_hardirqs_on_caller+0x310/0x310
[  379.864834]  ? task_prio+0x50/0x50
[  379.868728]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.874265]  ? check_preemption_disabled+0x48/0x280
[  379.879339]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.884189]  apic_timer_interrupt+0xf/0x20
[  379.888430]  </IRQ>
[  379.890672] RIP: 0010:dump_stack+0x358/0x39d
[  379.895084] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  379.913981] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  379.921693] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  379.928962] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  379.936249] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  379.943513] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  379.950781] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  379.958073]  ? dump_stack+0x34f/0x39d
[  379.961912]  ? dump_stack_print_info.cold.1+0x20/0x20
[  379.967141]  ? mark_held_locks+0x130/0x130
[  379.971390]  ? mark_held_locks+0x130/0x130
[  379.975629]  dump_header+0x27b/0xf72
[  379.979371]  ? pagefault_out_of_memory+0x197/0x197
[  379.984308]  ? __lock_acquire+0x62f/0x4c20
[  379.988551]  ? percpu_ref_get_many+0x240/0x240
[  379.993137]  ? print_usage_bug+0xc0/0xc0
[  379.997201]  ? zap_class+0x640/0x640
[  380.000930]  ? print_usage_bug+0xc0/0xc0
[  380.005032]  ? print_usage_bug+0xc0/0xc0
[  380.009099]  ? zap_class+0x640/0x640
[  380.012826]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.018370]  ? find_held_lock+0x36/0x1c0
[  380.022444]  ? mark_held_locks+0xc7/0x130
[  380.026597]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  380.031699]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  380.036804]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  380.041384]  ? trace_hardirqs_on+0xbd/0x310
[  380.045705]  ? kasan_check_read+0x11/0x20
[  380.049847]  ? ___ratelimit+0x3b4/0x672
[  380.053822]  ? trace_hardirqs_off_caller+0x310/0x310
[  380.058925]  ? trace_hardirqs_on+0x310/0x310
[  380.063331]  ? lock_downgrade+0x900/0x900
[  380.067500]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  380.072603]  ? ___ratelimit+0x3b9/0x672
[  380.076585]  ? idr_get_free+0xf70/0xf70
[  380.080580]  ? find_held_lock+0x36/0x1c0
[  380.084653]  oom_kill_process.cold.27+0x10/0x903
[  380.089412]  ? zap_class+0x640/0x640
[  380.093130]  ? check_preemption_disabled+0x48/0x280
[  380.098154]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  380.103085]  ? kasan_check_read+0x11/0x20
[  380.107246]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.112524]  ? oom_evaluate_task+0x540/0x540
[  380.116934]  ? find_held_lock+0x36/0x1c0
[  380.121013]  ? out_of_memory+0x974/0x1430
[  380.125173]  ? lock_downgrade+0x900/0x900
[  380.129320]  ? check_preemption_disabled+0x48/0x280
[  380.134338]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  380.139266]  ? kasan_check_read+0x11/0x20
[  380.143415]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.148689]  ? rcu_softirq_qs+0x20/0x20
[  380.152669]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.158221]  ? oom_evaluate_task+0x302/0x540
[  380.162650]  out_of_memory+0xa84/0x1430
[  380.166633]  ? oom_killer_disable+0x3a0/0x3a0
[  380.171133]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  380.176068]  ? __ww_mutex_check_waiters+0x160/0x160
[  380.181112]  __alloc_pages_slowpath+0x2354/0x2e10
[  380.185981]  ? warn_alloc+0x120/0x120
[  380.189791]  ? mark_held_locks+0x130/0x130
[  380.194033]  ? find_get_entry+0xaae/0x1120
[  380.198277]  ? filemap_map_pages+0x1a20/0x1a20
[  380.202862]  ? zap_class+0x640/0x640
[  380.206576]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.212111]  ? check_preemption_disabled+0x48/0x280
[  380.217129]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.222666]  ? should_fail+0x22d/0xd01
[  380.226557]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  380.231662]  ? zap_class+0x640/0x640
[  380.235403]  ? __lock_is_held+0xb5/0x140
[  380.239475]  ? mark_held_locks+0x130/0x130
[  380.243713]  ? lock_release+0xa00/0xa00
[  380.247689]  ? perf_trace_sched_process_exec+0x860/0x860
[  380.253142]  ? xa_load+0x2ba/0x460
[  380.256681]  ? lock_downgrade+0x900/0x900
[  380.260837]  ? __might_sleep+0x95/0x190
[  380.264820]  __alloc_pages_nodemask+0xa80/0xde0
[  380.269498]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  380.274518]  ? __page_cache_alloc+0x191/0x5c0
[  380.279022]  ? xa_load+0x2e1/0x460
[  380.282569]  ? xa_clear_mark+0x40/0x40
[  380.286462]  ? zap_class+0x640/0x640
[  380.290192]  ? zap_class+0x640/0x640
[  380.293908]  ? zap_class+0x640/0x640
[  380.297623]  ? __do_page_cache_readahead+0x663/0x810
[  380.302748]  ? find_held_lock+0x36/0x1c0
[  380.306822]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  380.312383]  alloc_pages_current+0x173/0x350
[  380.316806]  __page_cache_alloc+0x38c/0x5c0
[  380.321128]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  380.326069]  ? kasan_check_read+0x11/0x20
[  380.330215]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.335506]  ? generic_perform_write+0x6a0/0x6a0
[  380.340370]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.345912]  ? check_preemption_disabled+0x48/0x280
[  380.350959]  filemap_fault+0x1595/0x25f0
[  380.355044]  ? __lock_page_or_retry+0xa00/0xa00
[  380.359731]  ? mark_held_locks+0x130/0x130
[  380.363974]  ? filemap_map_pages+0xd6b/0x1a20
[  380.368483]  ? lock_downgrade+0x900/0x900
[  380.372648]  ? check_preemption_disabled+0x48/0x280
[  380.377667]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  380.382599]  ? kasan_check_read+0x11/0x20
[  380.386751]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.392034]  ? rcu_softirq_qs+0x20/0x20
[  380.396030]  ? filemap_map_pages+0xd92/0x1a20
[  380.400540]  ? find_get_entries_tag+0x1400/0x1400
[  380.405387]  ? debug_object_destroy+0x2b0/0x2b0
[  380.410062]  ? lock_pi_update_atomic+0x150/0x150
[  380.414821]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.420371]  ? lock_acquire+0x1ed/0x520
[  380.424345]  ? ext4_filemap_fault+0x7a/0xad
[  380.428675]  ? lock_release+0xa00/0xa00
[  380.432649]  ? perf_trace_sched_process_exec+0x860/0x860
[  380.438102]  ? print_usage_bug+0xc0/0xc0
[  380.442166]  ? print_usage_bug+0xc0/0xc0
[  380.446258]  ? down_read+0x8d/0x120
[  380.449880]  ? ext4_filemap_fault+0x7a/0xad
[  380.454199]  ? __down_interruptible+0x700/0x700
[  380.458875]  ext4_filemap_fault+0x82/0xad
[  380.463029]  __do_fault+0x100/0x6b0
[  380.466661]  ? pmd_devmap_trans_unstable+0x220/0x220
[  380.471781]  ? mark_held_locks+0x130/0x130
[  380.476034]  ? mark_held_locks+0x130/0x130
[  380.480271]  ? debug_smp_processor_id+0x1c/0x20
[  380.484943]  ? perf_trace_lock+0x14d/0x7a0
[  380.489190]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.494733]  __handle_mm_fault+0x3ea0/0x5be0
[  380.499162]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  380.504016]  ? lock_is_held_type+0x210/0x210
[  380.508432]  ? ksys_dup3+0x680/0x680
[  380.512159]  ? zap_class+0x640/0x640
[  380.515873]  ? zap_class+0x640/0x640
[  380.519585]  ? __x64_sys_futex+0x53e/0x6a0
[  380.523838]  ? find_held_lock+0x36/0x1c0
[  380.527910]  ? handle_mm_fault+0x42a/0xc70
[  380.532150]  ? lock_downgrade+0x900/0x900
[  380.536300]  ? check_preemption_disabled+0x48/0x280
[  380.541357]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  380.546306]  ? kasan_check_read+0x11/0x20
[  380.550455]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.555737]  ? rcu_softirq_qs+0x20/0x20
[  380.559723]  ? trace_hardirqs_off_caller+0x310/0x310
[  380.564838]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.570379]  ? check_preemption_disabled+0x48/0x280
[  380.575404]  handle_mm_fault+0x54f/0xc70
[  380.579468]  ? __handle_mm_fault+0x5be0/0x5be0
[  380.584054]  ? find_vma+0x34/0x190
[  380.587616]  __do_page_fault+0x5e8/0xe60
[  380.591674]  ? trace_hardirqs_off+0xb8/0x310
[  380.596134]  do_page_fault+0xf2/0x7e0
[  380.599953]  ? vmalloc_sync_all+0x30/0x30
[  380.604100]  ? error_entry+0x70/0xd0
[  380.607815]  ? trace_hardirqs_off_caller+0xbb/0x310
[  380.612841]  ? trace_hardirqs_on_caller+0xc0/0x310
[  380.617776]  ? syscall_return_slowpath+0x5e0/0x5e0
[  380.622709]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  380.627570]  ? trace_hardirqs_on_caller+0x310/0x310
[  380.632594]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  380.638072]  ? prepare_exit_to_usermode+0x291/0x3b0
[  380.643092]  ? page_fault+0x8/0x30
[  380.646639]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  380.651493]  ? page_fault+0x8/0x30
[  380.655035]  page_fault+0x1e/0x30
[  380.658498] RIP: 0033:0x40f9c0
[  380.661702] Code: Bad RIP value.
[  380.665068] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  380.670429] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  380.677695] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  380.684962] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  380.692239] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  380.699505] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  380.706798] warn_alloc_show_mem: 1 callbacks suppressed
[  380.706810] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  380.706812] Mem-Info:
[  380.706842] active_anon:54833 inactive_anon:712 isolated_anon:0
[  380.706842]  active_file:11 inactive_file:12 isolated_file:0
[  380.706842]  unevictable:0 dirty:0 writeback:0 unstable:0
[  380.706842]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  380.706842]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  380.706842]  free:13768 free_pcp:742 free_cma:0
[  380.712189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  380.718962] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  380.721363] Call Trace:
[  380.754243] 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
[  380.763606]  dump_stack+0x244/0x39d
[  380.791169] lowmem_reserve[]: 0 2818 6321 6321
[  380.793774]  ? dump_stack_print_info.cold.1+0x20/0x20
[  380.820854] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  380.824481]  warn_alloc.cold.116+0xb7/0x1bd
[  380.829043] lowmem_reserve[]: 0 0 3503 3503
[  380.834222]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  380.861954] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  380.866294]  ? lock_downgrade+0x900/0x900
[  380.870585] lowmem_reserve[]: 0 0 0 0
[  380.875428]  ? trace_hardirqs_off+0xb8/0x310
[  380.904550] 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
[  380.908700]  ? trace_hardirqs_off+0xb8/0x310
[  380.912472] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  380.916888]  __alloc_pages_slowpath+0x26e8/0x2e10
[  380.930398] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  380.934842]  ? warn_alloc+0x120/0x120
[  380.950482] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  380.955315]  ? print_usage_bug+0xc0/0xc0
[  380.970656] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  380.974450]  ? warn_alloc+0x120/0x120
[  380.983261] 782 total pagecache pages
[  380.987318]  ? warn_alloc+0x120/0x120
[  380.995877] 0 pages in swap cache
[  380.999669]  ? print_usage_bug+0xc0/0xc0
[  381.003447] Swap cache stats: add 0, delete 0, find 0/0
[  381.007239]  ? print_usage_bug+0xc0/0xc0
[  381.010675] Free swap  = 0kB
[  381.014847]  ? __lock_acquire+0x62f/0x4c20
[  381.020185] Total swap = 0kB
[  381.024259]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.027264] 1965979 pages RAM
[  381.031528]  ? should_fail+0x22d/0xd01
[  381.034526] 0 pages HighMem/MovableOnly
[  381.040056]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  381.043145] 342853 pages reserved
[  381.047047]  ? __lock_acquire+0x62f/0x4c20
[  381.051002] 0 pages cma reserved
[  381.056096]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  381.059581] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  381.063743]  ? __lock_acquire+0x62f/0x4c20
[  381.063758]  ? should_fail+0x22d/0xd01
[  381.067197] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  381.072400]  ? find_held_lock+0x36/0x1c0
[  381.078867] syz-fuzzer cpuset=/ mems_allowed=0
[  381.083097]  ? mark_held_locks+0x130/0x130
[  381.110017]  ? mark_held_locks+0x130/0x130
[  381.114251]  ? zap_class+0x640/0x640
[  381.117972]  ? mark_held_locks+0xc7/0x130
[  381.122232]  ? do_raw_spin_unlock+0xa7/0x330
[  381.126652]  ? zap_class+0x640/0x640
[  381.130387]  ? print_usage_bug+0xc0/0xc0
[  381.134463]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.140015]  ? check_preemption_disabled+0x48/0x280
[  381.145044]  ? __lock_is_held+0xb5/0x140
[  381.149113]  __alloc_pages_nodemask+0xa80/0xde0
[  381.153780]  ? zap_class+0x640/0x640
[  381.157495]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  381.162518]  ? find_held_lock+0x36/0x1c0
[  381.166596]  ? ____cache_alloc_node+0x1c7/0x1e0
[  381.171280]  ? lock_downgrade+0x900/0x900
[  381.175457]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.181049]  cache_grow_begin+0xa5/0x8c0
[  381.185119]  ? do_raw_spin_unlock+0xa7/0x330
[  381.189585]  fallback_alloc+0x204/0x2e0
[  381.193569]  ____cache_alloc_node+0x1c7/0x1e0
[  381.198069]  kmem_cache_alloc_node+0xe3/0x730
[  381.202596]  ? ipv6_get_ifaddr+0x42e/0x620
[  381.206851]  __alloc_skb+0x119/0x770
[  381.210564]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.215876]  ? netdev_alloc_frag+0x1f0/0x1f0
[  381.220289]  ? lock_downgrade+0x900/0x900
[  381.224445]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.230022]  ? refcount_sub_and_test_checked+0x203/0x310
[  381.235478]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  381.240928]  ? addrconf_rs_timer+0x690/0x690
[  381.245363]  ndisc_alloc_skb+0x144/0x340
[  381.249432]  ndisc_send_rs+0x331/0x6e0
[  381.253455]  addrconf_rs_timer+0x314/0x690
[  381.257704]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.261961]  call_timer_fn+0x272/0x920
[  381.265855]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.270092]  ? process_timeout+0x40/0x40
[  381.274158]  ? __run_timers+0x7da/0xc70
[  381.278135]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.282634]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.287129]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.291369]  ? lockdep_hardirqs_on+0x296/0x5b0
[  381.295973]  ? trace_hardirqs_on+0xbd/0x310
[  381.300302]  ? kasan_check_read+0x11/0x20
[  381.304451]  ? __run_timers+0x7da/0xc70
[  381.308426]  ? trace_hardirqs_off_caller+0x310/0x310
[  381.313534]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.317775]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.322024]  __run_timers+0x7e5/0xc70
[  381.325865]  ? timer_fixup_init+0x70/0x70
[  381.330035]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.334532]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.339036]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  381.343651]  ? trace_hardirqs_on+0xbd/0x310
[  381.347971]  ? kasan_check_read+0x11/0x20
[  381.352130]  ? finish_task_switch+0x1f4/0x910
[  381.356633]  ? trace_hardirqs_off_caller+0x310/0x310
[  381.361736]  ? compat_start_thread+0x80/0x80
[  381.366209]  ? pvclock_read_flags+0x160/0x160
[  381.370718]  ? __switch_to_asm+0x34/0x70
[  381.374781]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.380320]  ? check_preemption_disabled+0x48/0x280
[  381.385352]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  381.390906]  ? rcu_pm_notify+0xc0/0xc0
[  381.394795]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.400356]  ? check_preemption_disabled+0x48/0x280
[  381.405384]  run_timer_softirq+0x52/0xb0
[  381.409446]  ? rcu_read_lock_sched_held+0x14f/0x180
[  381.414468]  __do_softirq+0x308/0xb7e
[  381.418281]  ? retint_kernel+0x2d/0x2d
[  381.422176]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  381.427287]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  381.432740]  ? trace_hardirqs_on+0x310/0x310
[  381.437155]  ? schedule+0x108/0x460
[  381.440787]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  381.445552]  ? trace_hardirqs_off+0xb8/0x310
[  381.450002]  ? smpboot_thread_fn+0x68b/0xa00
[  381.454412]  ? trace_hardirqs_on+0x310/0x310
[  381.458824]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.464362]  ? check_preemption_disabled+0x48/0x280
[  381.469379]  ? takeover_tasklets+0xa90/0xa90
[  381.473793]  run_ksoftirqd+0x5e/0x100
[  381.477593]  smpboot_thread_fn+0x68b/0xa00
[  381.481867]  ? sort_range+0x30/0x30
[  381.485495]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  381.490604]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.496152]  ? __kthread_parkme+0xfb/0x1a0
[  381.500393]  ? sort_range+0x30/0x30
[  381.504027]  kthread+0x35a/0x440
[  381.507395]  ? kthread_stop+0x900/0x900
[  381.511384]  ret_from_fork+0x3a/0x50
[  381.515117] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  381.515191] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  381.522049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  381.522054] Call Trace:
[  381.522060]  <IRQ>
[  381.522079]  dump_stack+0x244/0x39d
[  381.522097]  ? dump_stack_print_info.cold.1+0x20/0x20
[  381.528623] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  381.538134]  warn_alloc.cold.116+0xb7/0x1bd
[  381.540690] ksoftirqd/0 cpuset=/ mems_allowed=0
[  381.542842]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  381.575739]  ? lock_downgrade+0x900/0x900
[  381.579897]  ? trace_hardirqs_off+0xb8/0x310
[  381.584314]  ? trace_hardirqs_off+0xb8/0x310
[  381.588761]  __alloc_pages_slowpath+0x26e8/0x2e10
[  381.593688]  ? warn_alloc+0x120/0x120
[  381.597491]  ? print_usage_bug+0xc0/0xc0
[  381.601554]  ? warn_alloc+0x120/0x120
[  381.605375]  ? warn_alloc+0x120/0x120
[  381.609178]  ? print_usage_bug+0xc0/0xc0
[  381.613246]  ? print_usage_bug+0xc0/0xc0
[  381.617322]  ? __lock_acquire+0x62f/0x4c20
[  381.621609]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.627149]  ? should_fail+0x22d/0xd01
[  381.631046]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  381.636149]  ? __lock_acquire+0x62f/0x4c20
[  381.640385]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  381.645491]  ? __lock_acquire+0x62f/0x4c20
[  381.649737]  ? should_fail+0x22d/0xd01
[  381.653638]  ? find_held_lock+0x36/0x1c0
[  381.657742]  ? mark_held_locks+0x130/0x130
[  381.662019]  ? mark_held_locks+0x130/0x130
[  381.666251]  ? zap_class+0x640/0x640
[  381.670320]  ? zap_class+0x640/0x640
[  381.674037]  ? print_usage_bug+0xc0/0xc0
[  381.678097]  ? do_raw_spin_unlock+0xa7/0x330
[  381.682505]  ? zap_class+0x640/0x640
[  381.686216]  ? print_usage_bug+0xc0/0xc0
[  381.690289]  ? wq_watchdog_touch+0x9c/0xfe
[  381.694557]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.700108]  ? check_preemption_disabled+0x48/0x280
[  381.705147]  ? __lock_is_held+0xb5/0x140
[  381.709215]  __alloc_pages_nodemask+0xa80/0xde0
[  381.713894]  ? zap_class+0x640/0x640
[  381.717627]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  381.722724]  ? find_held_lock+0x36/0x1c0
[  381.726799]  ? ____cache_alloc_node+0x1c7/0x1e0
[  381.731469]  ? lock_downgrade+0x900/0x900
[  381.735628]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.741171]  cache_grow_begin+0xa5/0x8c0
[  381.745236]  ? do_raw_spin_unlock+0xa7/0x330
[  381.749669]  fallback_alloc+0x204/0x2e0
[  381.753651]  ____cache_alloc_node+0x1c7/0x1e0
[  381.758149]  kmem_cache_alloc_node+0xe3/0x730
[  381.762644]  ? ipv6_get_ifaddr+0x42e/0x620
[  381.766908]  __alloc_skb+0x119/0x770
[  381.770629]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.775907]  ? netdev_alloc_frag+0x1f0/0x1f0
[  381.780315]  ? lock_downgrade+0x900/0x900
[  381.784474]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.790024]  ? refcount_sub_and_test_checked+0x203/0x310
[  381.795539]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  381.801474]  ? addrconf_rs_timer+0x690/0x690
[  381.805896]  ndisc_alloc_skb+0x144/0x340
[  381.809960]  ndisc_send_rs+0x331/0x6e0
[  381.813850]  addrconf_rs_timer+0x314/0x690
[  381.818092]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.822341]  call_timer_fn+0x272/0x920
[  381.826228]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.830462]  ? process_timeout+0x40/0x40
[  381.834545]  ? mark_held_locks+0xc7/0x130
[  381.838706]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.843201]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.847707]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.851943]  ? lockdep_hardirqs_on+0x296/0x5b0
[  381.856526]  ? trace_hardirqs_on+0xbd/0x310
[  381.860848]  ? kasan_check_read+0x11/0x20
[  381.865009]  ? __run_timers+0x7da/0xc70
[  381.868986]  ? trace_hardirqs_off_caller+0x310/0x310
[  381.874116]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.878358]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.882590]  __run_timers+0x7e5/0xc70
[  381.886748]  ? timer_fixup_init+0x70/0x70
[  381.890903]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  381.895921]  ? zap_class+0x640/0x640
[  381.899654]  ? print_usage_bug+0xc0/0xc0
[  381.903734]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  381.908939]  ? find_held_lock+0x36/0x1c0
[  381.913010]  ? zap_class+0x640/0x640
[  381.916745]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.922291]  ? check_preemption_disabled+0x48/0x280
[  381.927321]  ? __lock_is_held+0xb5/0x140
[  381.931386]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.936924]  ? check_preemption_disabled+0x48/0x280
[  381.941944]  run_timer_softirq+0x52/0xb0
[  381.946063]  ? rcu_read_lock_sched_held+0x14f/0x180
[  381.951081]  __do_softirq+0x308/0xb7e
[  381.954882]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  381.959377]  ? lock_downgrade+0x900/0x900
[  381.963524]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  381.968658]  ? pvclock_read_flags+0x160/0x160
[  381.973153]  ? lapic_next_event+0x5a/0x90
[  381.977303]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.982857]  ? kvm_clock_read+0x18/0x30
[  381.986873]  ? kvm_sched_clock_read+0x9/0x20
[  381.991303]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.996841]  ? check_preemption_disabled+0x48/0x280
[  382.001866]  irq_exit+0x17f/0x1c0
[  382.005323]  smp_apic_timer_interrupt+0x1cb/0x760
[  382.010159]  ? smp_call_function_single_interrupt+0x159/0x650
[  382.016044]  ? smp_call_function_single_interrupt+0x650/0x650
[  382.021926]  ? interrupt_entry+0xb5/0xc0
[  382.025991]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.031021]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.036039]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.040911]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.045959]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.050972]  ? task_prio+0x50/0x50
[  382.054524]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.060076]  ? check_preemption_disabled+0x48/0x280
[  382.065114]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.070005]  apic_timer_interrupt+0xf/0x20
[  382.074232]  </IRQ>
[  382.076489] RIP: 0010:dump_stack+0x358/0x39d
[  382.080901] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  382.099803] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  382.107512] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  382.114783] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  382.122063] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  382.129336] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  382.136608] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  382.143898]  ? dump_stack+0x34f/0x39d
[  382.147714]  ? dump_stack_print_info.cold.1+0x20/0x20
[  382.152923]  ? mark_held_locks+0x130/0x130
[  382.157161]  ? mark_held_locks+0x130/0x130
[  382.161400]  dump_header+0x27b/0xf72
[  382.165126]  ? pagefault_out_of_memory+0x197/0x197
[  382.170060]  ? __lock_acquire+0x62f/0x4c20
[  382.174296]  ? percpu_ref_get_many+0x240/0x240
[  382.178881]  ? print_usage_bug+0xc0/0xc0
[  382.182949]  ? zap_class+0x640/0x640
[  382.186662]  ? print_usage_bug+0xc0/0xc0
[  382.191170]  ? print_usage_bug+0xc0/0xc0
[  382.195234]  ? zap_class+0x640/0x640
[  382.198951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.204489]  ? find_held_lock+0x36/0x1c0
[  382.208557]  ? mark_held_locks+0xc7/0x130
[  382.212705]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  382.217805]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  382.222907]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  382.227489]  ? trace_hardirqs_on+0xbd/0x310
[  382.231813]  ? kasan_check_read+0x11/0x20
[  382.235976]  ? ___ratelimit+0x3b4/0x672
[  382.239968]  ? trace_hardirqs_off_caller+0x310/0x310
[  382.245079]  ? trace_hardirqs_on+0x310/0x310
[  382.249493]  ? lock_downgrade+0x900/0x900
[  382.253649]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  382.258756]  ? ___ratelimit+0x3b9/0x672
[  382.262741]  ? idr_get_free+0xf70/0xf70
[  382.266718]  ? find_held_lock+0x36/0x1c0
[  382.270797]  oom_kill_process.cold.27+0x10/0x903
[  382.275554]  ? zap_class+0x640/0x640
[  382.279268]  ? check_preemption_disabled+0x48/0x280
[  382.284304]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  382.289237]  ? kasan_check_read+0x11/0x20
[  382.293385]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.298666]  ? oom_evaluate_task+0x540/0x540
[  382.303075]  ? find_held_lock+0x36/0x1c0
[  382.307156]  ? out_of_memory+0x974/0x1430
[  382.311307]  ? lock_downgrade+0x900/0x900
[  382.315455]  ? check_preemption_disabled+0x48/0x280
[  382.323650]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  382.328598]  ? kasan_check_read+0x11/0x20
[  382.332745]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.338072]  ? rcu_softirq_qs+0x20/0x20
[  382.342057]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.347597]  ? oom_evaluate_task+0x302/0x540
[  382.352017]  out_of_memory+0xa84/0x1430
[  382.356014]  ? oom_killer_disable+0x3a0/0x3a0
[  382.360514]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  382.365450]  ? __ww_mutex_check_waiters+0x160/0x160
[  382.370480]  __alloc_pages_slowpath+0x2354/0x2e10
[  382.375354]  ? warn_alloc+0x120/0x120
[  382.379158]  ? mark_held_locks+0x130/0x130
[  382.383402]  ? find_get_entry+0xaae/0x1120
[  382.387651]  ? filemap_map_pages+0x1a20/0x1a20
[  382.392244]  ? zap_class+0x640/0x640
[  382.395979]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.401546]  ? check_preemption_disabled+0x48/0x280
[  382.406565]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.412107]  ? should_fail+0x22d/0xd01
[  382.416023]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  382.421133]  ? zap_class+0x640/0x640
[  382.424875]  ? __lock_is_held+0xb5/0x140
[  382.428963]  ? mark_held_locks+0x130/0x130
[  382.433248]  ? lock_release+0xa00/0xa00
[  382.437241]  ? perf_trace_sched_process_exec+0x860/0x860
[  382.442692]  ? xa_load+0x2ba/0x460
[  382.446238]  ? lock_downgrade+0x900/0x900
[  382.450392]  ? __might_sleep+0x95/0x190
[  382.454374]  __alloc_pages_nodemask+0xa80/0xde0
[  382.459079]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  382.464105]  ? __page_cache_alloc+0x191/0x5c0
[  382.468600]  ? xa_load+0x2e1/0x460
[  382.472140]  ? xa_clear_mark+0x40/0x40
[  382.476035]  ? zap_class+0x640/0x640
[  382.479757]  ? zap_class+0x640/0x640
[  382.483476]  ? zap_class+0x640/0x640
[  382.487194]  ? __do_page_cache_readahead+0x663/0x810
[  382.492301]  ? find_held_lock+0x36/0x1c0
[  382.496386]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  382.501929]  alloc_pages_current+0x173/0x350
[  382.506343]  __page_cache_alloc+0x38c/0x5c0
[  382.510676]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  382.515603]  ? kasan_check_read+0x11/0x20
[  382.519761]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.525063]  ? generic_perform_write+0x6a0/0x6a0
[  382.529824]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.535364]  ? check_preemption_disabled+0x48/0x280
[  382.540390]  filemap_fault+0x1595/0x25f0
[  382.544466]  ? __lock_page_or_retry+0xa00/0xa00
[  382.549145]  ? mark_held_locks+0x130/0x130
[  382.553391]  ? filemap_map_pages+0xd6b/0x1a20
[  382.557892]  ? lock_downgrade+0x900/0x900
[  382.562042]  ? check_preemption_disabled+0x48/0x280
[  382.567063]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  382.572004]  ? kasan_check_read+0x11/0x20
[  382.576151]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.581431]  ? rcu_softirq_qs+0x20/0x20
[  382.585432]  ? filemap_map_pages+0xd92/0x1a20
[  382.589941]  ? find_get_entries_tag+0x1400/0x1400
[  382.594793]  ? debug_object_destroy+0x2b0/0x2b0
[  382.599483]  ? lock_pi_update_atomic+0x150/0x150
[  382.604250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.609811]  ? lock_acquire+0x1ed/0x520
[  382.613786]  ? ext4_filemap_fault+0x7a/0xad
[  382.618115]  ? lock_release+0xa00/0xa00
[  382.622092]  ? perf_trace_sched_process_exec+0x860/0x860
[  382.627554]  ? print_usage_bug+0xc0/0xc0
[  382.631619]  ? print_usage_bug+0xc0/0xc0
[  382.635709]  ? down_read+0x8d/0x120
[  382.639336]  ? ext4_filemap_fault+0x7a/0xad
[  382.643660]  ? __down_interruptible+0x700/0x700
[  382.648363]  ext4_filemap_fault+0x82/0xad
[  382.652547]  __do_fault+0x100/0x6b0
[  382.656196]  ? pmd_devmap_trans_unstable+0x220/0x220
[  382.661304]  ? mark_held_locks+0x130/0x130
[  382.665554]  ? mark_held_locks+0x130/0x130
[  382.669794]  ? debug_smp_processor_id+0x1c/0x20
[  382.674465]  ? perf_trace_lock+0x14d/0x7a0
[  382.678708]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.684250]  __handle_mm_fault+0x3ea0/0x5be0
[  382.688664]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  382.693516]  ? lock_is_held_type+0x210/0x210
[  382.697936]  ? ksys_dup3+0x680/0x680
[  382.701664]  ? zap_class+0x640/0x640
[  382.705381]  ? zap_class+0x640/0x640
[  382.709096]  ? __x64_sys_futex+0x53e/0x6a0
[  382.713345]  ? find_held_lock+0x36/0x1c0
[  382.717414]  ? handle_mm_fault+0x42a/0xc70
[  382.721654]  ? lock_downgrade+0x900/0x900
[  382.725808]  ? check_preemption_disabled+0x48/0x280
[  382.730829]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  382.735758]  ? kasan_check_read+0x11/0x20
[  382.739925]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.745214]  ? rcu_softirq_qs+0x20/0x20
[  382.749192]  ? trace_hardirqs_off_caller+0x310/0x310
[  382.754333]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.759873]  ? check_preemption_disabled+0x48/0x280
[  382.764896]  handle_mm_fault+0x54f/0xc70
[  382.768963]  ? __handle_mm_fault+0x5be0/0x5be0
[  382.773554]  ? find_vma+0x34/0x190
[  382.777127]  __do_page_fault+0x5e8/0xe60
[  382.781217]  ? trace_hardirqs_off+0xb8/0x310
[  382.785636]  do_page_fault+0xf2/0x7e0
[  382.789437]  ? vmalloc_sync_all+0x30/0x30
[  382.793599]  ? error_entry+0x70/0xd0
[  382.797310]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.802832]  ? trace_hardirqs_on_caller+0xc0/0x310
[  382.807762]  ? syscall_return_slowpath+0x5e0/0x5e0
[  382.812709]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.817549]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.822560]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  382.828020]  ? prepare_exit_to_usermode+0x291/0x3b0
[  382.833039]  ? page_fault+0x8/0x30
[  382.836583]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.841484]  ? page_fault+0x8/0x30
[  382.845068]  page_fault+0x1e/0x30
[  382.848518] RIP: 0033:0x40f9c0
[  382.851717] Code: Bad RIP value.
[  382.855074] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  382.860439] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  382.867707] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  382.874969] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  382.882237] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  382.889500] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  382.896796] warn_alloc_show_mem: 1 callbacks suppressed
[  382.896807] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  382.896809] Mem-Info:
[  382.896836] active_anon:54833 inactive_anon:712 isolated_anon:0
[  382.896836]  active_file:11 inactive_file:12 isolated_file:0
[  382.896836]  unevictable:0 dirty:0 writeback:0 unstable:0
[  382.896836]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  382.896836]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  382.896836]  free:13768 free_pcp:742 free_cma:0
[  382.902176] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  382.908928] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  382.911349] Call Trace:
[  382.944209] 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
[  382.953561]  dump_stack+0x244/0x39d
[  382.981113] lowmem_reserve[]: 0 2818 6321 6321
[  382.983711]  ? dump_stack_print_info.cold.1+0x20/0x20
[  383.009796] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  383.013451]  warn_alloc.cold.116+0xb7/0x1bd
[  383.017992] lowmem_reserve[]: 0 0 3503 3503
[  383.023215]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  383.050947] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  383.055265]  ? lock_downgrade+0x900/0x900
[  383.059585] lowmem_reserve[]: 0 0 0 0
[  383.064458]  ? trace_hardirqs_off+0xb8/0x310
[  383.093569] 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
[  383.097718]  ? trace_hardirqs_off+0xb8/0x310
[  383.101497] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  383.105904]  __alloc_pages_slowpath+0x26e8/0x2e10
[  383.119395] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  383.123831]  ? warn_alloc+0x120/0x120
[  383.139486] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  383.144320]  ? print_usage_bug+0xc0/0xc0
[  383.159705] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  383.163490]  ? warn_alloc+0x120/0x120
[  383.172298] 782 total pagecache pages
[  383.176348]  ? warn_alloc+0x120/0x120
[  383.184903] 0 pages in swap cache
[  383.188734]  ? print_usage_bug+0xc0/0xc0
[  383.192491] Swap cache stats: add 0, delete 0, find 0/0
[  383.196296]  ? print_usage_bug+0xc0/0xc0
[  383.199720] Free swap  = 0kB
[  383.203770]  ? __lock_acquire+0x62f/0x4c20
[  383.209113] Total swap = 0kB
[  383.213170]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.216160] 1965979 pages RAM
[  383.220385]  ? should_fail+0x22d/0xd01
[  383.223399] 0 pages HighMem/MovableOnly
[  383.223406] 342853 pages reserved
[  383.228933]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  383.232036] 0 pages cma reserved
[  383.235929]  ? __lock_acquire+0x62f/0x4c20
[  383.239938] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  383.243328]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  383.248456] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  383.251773]  ? __lock_acquire+0x62f/0x4c20
[  383.255988] syz-fuzzer cpuset=/ mems_allowed=0
[  383.262476]  ? should_fail+0x22d/0xd01
[  383.290430]  ? find_held_lock+0x36/0x1c0
[  383.294503]  ? mark_held_locks+0x130/0x130
[  383.298743]  ? mark_held_locks+0x130/0x130
[  383.302971]  ? zap_class+0x640/0x640
[  383.306689]  ? zap_class+0x640/0x640
[  383.310409]  ? print_usage_bug+0xc0/0xc0
[  383.314485]  ? do_raw_spin_unlock+0xa7/0x330
[  383.318892]  ? zap_class+0x640/0x640
[  383.322620]  ? print_usage_bug+0xc0/0xc0
[  383.326713]  ? wq_watchdog_touch+0x9c/0xfe
[  383.330948]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.336486]  ? check_preemption_disabled+0x48/0x280
[  383.341508]  ? __lock_is_held+0xb5/0x140
[  383.345573]  __alloc_pages_nodemask+0xa80/0xde0
[  383.350273]  ? zap_class+0x640/0x640
[  383.354001]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  383.359040]  ? find_held_lock+0x36/0x1c0
[  383.363117]  ? ____cache_alloc_node+0x1c7/0x1e0
[  383.368141]  ? lock_downgrade+0x900/0x900
[  383.372300]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.377842]  cache_grow_begin+0xa5/0x8c0
[  383.381903]  ? do_raw_spin_unlock+0xa7/0x330
[  383.386316]  fallback_alloc+0x204/0x2e0
[  383.390298]  ____cache_alloc_node+0x1c7/0x1e0
[  383.394798]  kmem_cache_alloc_node+0xe3/0x730
[  383.399316]  ? ipv6_get_ifaddr+0x42e/0x620
[  383.403563]  __alloc_skb+0x119/0x770
[  383.407281]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.412563]  ? netdev_alloc_frag+0x1f0/0x1f0
[  383.416987]  ? lock_downgrade+0x900/0x900
[  383.421152]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.426691]  ? refcount_sub_and_test_checked+0x203/0x310
[  383.432148]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  383.437617]  ? addrconf_rs_timer+0x690/0x690
[  383.442042]  ndisc_alloc_skb+0x144/0x340
[  383.446115]  ndisc_send_rs+0x331/0x6e0
[  383.450038]  addrconf_rs_timer+0x314/0x690
[  383.454299]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.458545]  call_timer_fn+0x272/0x920
[  383.462461]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.466709]  ? process_timeout+0x40/0x40
[  383.470774]  ? __run_timers+0x7da/0xc70
[  383.474751]  ? _raw_spin_unlock_irq+0x27/0x80
[  383.479244]  ? _raw_spin_unlock_irq+0x27/0x80
[  383.483740]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.487969]  ? lockdep_hardirqs_on+0x296/0x5b0
[  383.492556]  ? trace_hardirqs_on+0xbd/0x310
[  383.496890]  ? kasan_check_read+0x11/0x20
[  383.501051]  ? __run_timers+0x7da/0xc70
[  383.505034]  ? trace_hardirqs_off_caller+0x310/0x310
[  383.510139]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.514375]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.518623]  __run_timers+0x7e5/0xc70
[  383.522436]  ? timer_fixup_init+0x70/0x70
[  383.526581]  ? _raw_spin_unlock_irq+0x27/0x80
[  383.531073]  ? _raw_spin_unlock_irq+0x27/0x80
[  383.535566]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  383.540167]  ? trace_hardirqs_on+0xbd/0x310
[  383.544500]  ? kasan_check_read+0x11/0x20
[  383.548650]  ? finish_task_switch+0x1f4/0x910
[  383.553162]  ? trace_hardirqs_off_caller+0x310/0x310
[  383.558311]  ? compat_start_thread+0x80/0x80
[  383.562752]  ? pvclock_read_flags+0x160/0x160
[  383.567257]  ? __switch_to_asm+0x34/0x70
[  383.571384]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.576935]  ? check_preemption_disabled+0x48/0x280
[  383.581955]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  383.587490]  ? rcu_pm_notify+0xc0/0xc0
[  383.591371]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.596921]  ? check_preemption_disabled+0x48/0x280
[  383.602053]  run_timer_softirq+0x52/0xb0
[  383.606111]  ? rcu_read_lock_sched_held+0x14f/0x180
[  383.611123]  __do_softirq+0x308/0xb7e
[  383.614988]  ? retint_kernel+0x2d/0x2d
[  383.618904]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  383.624023]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  383.629492]  ? trace_hardirqs_on+0x310/0x310
[  383.633904]  ? schedule+0x108/0x460
[  383.637530]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  383.642297]  ? trace_hardirqs_off+0xb8/0x310
[  383.646701]  ? smpboot_thread_fn+0x68b/0xa00
[  383.651104]  ? trace_hardirqs_on+0x310/0x310
[  383.655508]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.661052]  ? check_preemption_disabled+0x48/0x280
[  383.666067]  ? takeover_tasklets+0xa90/0xa90
[  383.670725]  run_ksoftirqd+0x5e/0x100
[  383.674554]  smpboot_thread_fn+0x68b/0xa00
[  383.678804]  ? sort_range+0x30/0x30
[  383.682441]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  383.687550]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.693081]  ? __kthread_parkme+0xfb/0x1a0
[  383.697322]  ? sort_range+0x30/0x30
[  383.700942]  kthread+0x35a/0x440
[  383.704316]  ? kthread_stop+0x900/0x900
[  383.708290]  ret_from_fork+0x3a/0x50
[  383.712034] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  383.712104] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  383.718954] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  383.718962] Call Trace:
[  383.725616] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  383.734783]  <IRQ>
[  383.737352] ksoftirqd/0 cpuset=/ mems_allowed=0
[  383.748164]  dump_stack+0x244/0x39d
[  383.758574]  ? dump_stack_print_info.cold.1+0x20/0x20
[  383.763780]  warn_alloc.cold.116+0xb7/0x1bd
[  383.768103]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  383.772947]  ? lock_downgrade+0x900/0x900
[  383.777134]  ? trace_hardirqs_off+0xb8/0x310
[  383.781562]  ? trace_hardirqs_off+0xb8/0x310
[  383.785979]  __alloc_pages_slowpath+0x26e8/0x2e10
[  383.790859]  ? warn_alloc+0x120/0x120
[  383.794665]  ? print_usage_bug+0xc0/0xc0
[  383.798728]  ? warn_alloc+0x120/0x120
[  383.802553]  ? warn_alloc+0x120/0x120
[  383.806356]  ? print_usage_bug+0xc0/0xc0
[  383.810427]  ? print_usage_bug+0xc0/0xc0
[  383.814503]  ? __lock_acquire+0x62f/0x4c20
[  383.818746]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.824288]  ? should_fail+0x22d/0xd01
[  383.828199]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  383.833305]  ? __lock_acquire+0x62f/0x4c20
[  383.837543]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  383.842655]  ? __lock_acquire+0x62f/0x4c20
[  383.846906]  ? should_fail+0x22d/0xd01
[  383.850806]  ? find_held_lock+0x36/0x1c0
[  383.854874]  ? mark_held_locks+0x130/0x130
[  383.859116]  ? mark_held_locks+0x130/0x130
[  383.863347]  ? zap_class+0x640/0x640
[  383.867068]  ? zap_class+0x640/0x640
[  383.870806]  ? print_usage_bug+0xc0/0xc0
[  383.874864]  ? do_raw_spin_unlock+0xa7/0x330
[  383.879274]  ? zap_class+0x640/0x640
[  383.882986]  ? print_usage_bug+0xc0/0xc0
[  383.887055]  ? wq_watchdog_touch+0x9c/0xfe
[  383.891294]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.896837]  ? check_preemption_disabled+0x48/0x280
[  383.901861]  ? __lock_is_held+0xb5/0x140
[  383.905929]  __alloc_pages_nodemask+0xa80/0xde0
[  383.910612]  ? zap_class+0x640/0x640
[  383.914377]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  383.919404]  ? find_held_lock+0x36/0x1c0
[  383.923503]  ? ____cache_alloc_node+0x1c7/0x1e0
[  383.928173]  ? lock_downgrade+0x900/0x900
[  383.932329]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.937873]  cache_grow_begin+0xa5/0x8c0
[  383.941936]  ? do_raw_spin_unlock+0xa7/0x330
[  383.946356]  fallback_alloc+0x204/0x2e0
[  383.950363]  ____cache_alloc_node+0x1c7/0x1e0
[  383.954867]  kmem_cache_alloc_node+0xe3/0x730
[  383.959365]  ? ipv6_get_ifaddr+0x42e/0x620
[  383.963614]  __alloc_skb+0x119/0x770
[  383.967329]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.972622]  ? netdev_alloc_frag+0x1f0/0x1f0
[  383.977036]  ? lock_downgrade+0x900/0x900
[  383.981191]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.986743]  ? refcount_sub_and_test_checked+0x203/0x310
[  383.992205]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  383.997669]  ? addrconf_rs_timer+0x690/0x690
[  384.002089]  ndisc_alloc_skb+0x144/0x340
[  384.006175]  ndisc_send_rs+0x331/0x6e0
[  384.010084]  addrconf_rs_timer+0x314/0x690
[  384.014324]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.019280]  call_timer_fn+0x272/0x920
[  384.023171]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.027407]  ? process_timeout+0x40/0x40
[  384.031479]  ? mark_held_locks+0xc7/0x130
[  384.035629]  ? _raw_spin_unlock_irq+0x27/0x80
[  384.040121]  ? _raw_spin_unlock_irq+0x27/0x80
[  384.044627]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.048859]  ? lockdep_hardirqs_on+0x296/0x5b0
[  384.053461]  ? trace_hardirqs_on+0xbd/0x310
[  384.057789]  ? kasan_check_read+0x11/0x20
[  384.061937]  ? __run_timers+0x7da/0xc70
[  384.065914]  ? trace_hardirqs_off_caller+0x310/0x310
[  384.071033]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.075278]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.079517]  __run_timers+0x7e5/0xc70
[  384.083344]  ? timer_fixup_init+0x70/0x70
[  384.087493]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  384.092523]  ? zap_class+0x640/0x640
[  384.096291]  ? print_usage_bug+0xc0/0xc0
[  384.100355]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  384.105556]  ? find_held_lock+0x36/0x1c0
[  384.109633]  ? zap_class+0x640/0x640
[  384.113351]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.118888]  ? check_preemption_disabled+0x48/0x280
[  384.123917]  ? __lock_is_held+0xb5/0x140
[  384.127983]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.133535]  ? check_preemption_disabled+0x48/0x280
[  384.138556]  run_timer_softirq+0x52/0xb0
[  384.142621]  ? rcu_read_lock_sched_held+0x14f/0x180
[  384.147638]  __do_softirq+0x308/0xb7e
[  384.151445]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  384.155953]  ? lock_downgrade+0x900/0x900
[  384.160111]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  384.165255]  ? pvclock_read_flags+0x160/0x160
[  384.169761]  ? lapic_next_event+0x5a/0x90
[  384.173919]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.179476]  ? kvm_clock_read+0x18/0x30
[  384.183451]  ? kvm_sched_clock_read+0x9/0x20
[  384.187864]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.193417]  ? check_preemption_disabled+0x48/0x280
[  384.198441]  irq_exit+0x17f/0x1c0
[  384.201901]  smp_apic_timer_interrupt+0x1cb/0x760
[  384.206747]  ? smp_call_function_single_interrupt+0x159/0x650
[  384.212649]  ? smp_call_function_single_interrupt+0x650/0x650
[  384.218545]  ? interrupt_entry+0xb5/0xc0
[  384.222641]  ? trace_hardirqs_off_caller+0xbb/0x310
[  384.227661]  ? trace_hardirqs_off_caller+0xbb/0x310
[  384.232681]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  384.237525]  ? trace_hardirqs_on_caller+0x310/0x310
[  384.242543]  ? trace_hardirqs_on_caller+0x310/0x310
[  384.247559]  ? task_prio+0x50/0x50
[  384.251100]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.256637]  ? check_preemption_disabled+0x48/0x280
[  384.261658]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  384.266509]  apic_timer_interrupt+0xf/0x20
[  384.270740]  </IRQ>
[  384.272987] RIP: 0010:dump_stack+0x358/0x39d
[  384.277413] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  384.296328] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  384.304069] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  384.311347] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  384.318628] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  384.325904] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  384.333187] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  384.340477]  ? dump_stack+0x34f/0x39d
[  384.344305]  ? dump_stack_print_info.cold.1+0x20/0x20
[  384.349502]  ? mark_held_locks+0x130/0x130
[  384.353738]  ? mark_held_locks+0x130/0x130
[  384.358005]  dump_header+0x27b/0xf72
[  384.361732]  ? pagefault_out_of_memory+0x197/0x197
[  384.366670]  ? __lock_acquire+0x62f/0x4c20
[  384.370911]  ? percpu_ref_get_many+0x240/0x240
[  384.375496]  ? print_usage_bug+0xc0/0xc0
[  384.379590]  ? zap_class+0x640/0x640
[  384.383307]  ? print_usage_bug+0xc0/0xc0
[  384.387376]  ? print_usage_bug+0xc0/0xc0
[  384.391443]  ? zap_class+0x640/0x640
[  384.395166]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.400721]  ? find_held_lock+0x36/0x1c0
[  384.404821]  ? mark_held_locks+0xc7/0x130
[  384.408990]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  384.414107]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  384.419231]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  384.423817]  ? trace_hardirqs_on+0xbd/0x310
[  384.428143]  ? kasan_check_read+0x11/0x20
[  384.432289]  ? ___ratelimit+0x3b4/0x672
[  384.436298]  ? trace_hardirqs_off_caller+0x310/0x310
[  384.441405]  ? trace_hardirqs_on+0x310/0x310
[  384.445820]  ? lock_downgrade+0x900/0x900
[  384.449977]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  384.455093]  ? ___ratelimit+0x3b9/0x672
[  384.459081]  ? idr_get_free+0xf70/0xf70
[  384.463075]  ? find_held_lock+0x36/0x1c0
[  384.467150]  oom_kill_process.cold.27+0x10/0x903
[  384.471911]  ? zap_class+0x640/0x640
[  384.475627]  ? check_preemption_disabled+0x48/0x280
[  384.480662]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  384.485598]  ? kasan_check_read+0x11/0x20
[  384.489750]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.495036]  ? oom_evaluate_task+0x540/0x540
[  384.499452]  ? find_held_lock+0x36/0x1c0
[  384.503525]  ? out_of_memory+0x974/0x1430
[  384.507691]  ? lock_downgrade+0x900/0x900
[  384.511843]  ? check_preemption_disabled+0x48/0x280
[  384.516903]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  384.521837]  ? kasan_check_read+0x11/0x20
[  384.525989]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.531299]  ? rcu_softirq_qs+0x20/0x20
[  384.535287]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.540829]  ? oom_evaluate_task+0x302/0x540
[  384.545242]  out_of_memory+0xa84/0x1430
[  384.549228]  ? oom_killer_disable+0x3a0/0x3a0
[  384.553727]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  384.558664]  ? __ww_mutex_check_waiters+0x160/0x160
[  384.563697]  __alloc_pages_slowpath+0x2354/0x2e10
[  384.568595]  ? warn_alloc+0x120/0x120
[  384.572422]  ? mark_held_locks+0x130/0x130
[  384.576661]  ? find_get_entry+0xaae/0x1120
[  384.580901]  ? filemap_map_pages+0x1a20/0x1a20
[  384.585490]  ? zap_class+0x640/0x640
[  384.589207]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.594747]  ? check_preemption_disabled+0x48/0x280
[  384.599808]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.605358]  ? should_fail+0x22d/0xd01
[  384.609267]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  384.614395]  ? zap_class+0x640/0x640
[  384.618142]  ? __lock_is_held+0xb5/0x140
[  384.622228]  ? mark_held_locks+0x130/0x130
[  384.626484]  ? lock_release+0xa00/0xa00
[  384.630463]  ? perf_trace_sched_process_exec+0x860/0x860
[  384.635921]  ? xa_load+0x2ba/0x460
[  384.639465]  ? lock_downgrade+0x900/0x900
[  384.643624]  ? __might_sleep+0x95/0x190
[  384.647623]  __alloc_pages_nodemask+0xa80/0xde0
[  384.652328]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  384.657425]  ? __page_cache_alloc+0x191/0x5c0
[  384.661944]  ? xa_load+0x2e1/0x460
[  384.665494]  ? xa_clear_mark+0x40/0x40
[  384.669388]  ? zap_class+0x640/0x640
[  384.673128]  ? zap_class+0x640/0x640
[  384.676848]  ? zap_class+0x640/0x640
[  384.681177]  ? __do_page_cache_readahead+0x663/0x810
[  384.686300]  ? find_held_lock+0x36/0x1c0
[  384.690383]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  384.695942]  alloc_pages_current+0x173/0x350
[  384.700362]  __page_cache_alloc+0x38c/0x5c0
[  384.704686]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  384.709619]  ? kasan_check_read+0x11/0x20
[  384.713789]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.719077]  ? generic_perform_write+0x6a0/0x6a0
[  384.723849]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.729394]  ? check_preemption_disabled+0x48/0x280
[  384.734428]  filemap_fault+0x1595/0x25f0
[  384.738511]  ? __lock_page_or_retry+0xa00/0xa00
[  384.743190]  ? mark_held_locks+0x130/0x130
[  384.747437]  ? filemap_map_pages+0xd6b/0x1a20
[  384.751951]  ? lock_downgrade+0x900/0x900
[  384.756130]  ? check_preemption_disabled+0x48/0x280
[  384.761156]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  384.766091]  ? kasan_check_read+0x11/0x20
[  384.770245]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.775527]  ? rcu_softirq_qs+0x20/0x20
[  384.779517]  ? filemap_map_pages+0xd92/0x1a20
[  384.784033]  ? find_get_entries_tag+0x1400/0x1400
[  384.788884]  ? debug_object_destroy+0x2b0/0x2b0
[  384.793561]  ? lock_pi_update_atomic+0x150/0x150
[  384.798843]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.804422]  ? lock_acquire+0x1ed/0x520
[  384.808872]  ? ext4_filemap_fault+0x7a/0xad
[  384.813233]  ? lock_release+0xa00/0xa00
[  384.817217]  ? perf_trace_sched_process_exec+0x860/0x860
[  384.822677]  ? print_usage_bug+0xc0/0xc0
[  384.826754]  ? print_usage_bug+0xc0/0xc0
[  384.830845]  ? down_read+0x8d/0x120
[  384.834479]  ? ext4_filemap_fault+0x7a/0xad
[  384.838813]  ? __down_interruptible+0x700/0x700
[  384.843520]  ext4_filemap_fault+0x82/0xad
[  384.847695]  __do_fault+0x100/0x6b0
[  384.851354]  ? pmd_devmap_trans_unstable+0x220/0x220
[  384.856487]  ? mark_held_locks+0x130/0x130
[  384.860738]  ? mark_held_locks+0x130/0x130
[  384.865028]  ? debug_smp_processor_id+0x1c/0x20
[  384.869710]  ? perf_trace_lock+0x14d/0x7a0
[  384.873962]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.879555]  __handle_mm_fault+0x3ea0/0x5be0
[  384.884045]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  384.888921]  ? lock_is_held_type+0x210/0x210
[  384.893364]  ? ksys_dup3+0x680/0x680
[  384.897104]  ? zap_class+0x640/0x640
[  384.900825]  ? zap_class+0x640/0x640
[  384.904549]  ? __x64_sys_futex+0x53e/0x6a0
[  384.908803]  ? find_held_lock+0x36/0x1c0
[  384.912886]  ? handle_mm_fault+0x42a/0xc70
[  384.917136]  ? lock_downgrade+0x900/0x900
[  384.921299]  ? check_preemption_disabled+0x48/0x280
[  384.926343]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  384.931305]  ? kasan_check_read+0x11/0x20
[  384.935480]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.940793]  ? rcu_softirq_qs+0x20/0x20
[  384.944799]  ? trace_hardirqs_off_caller+0x310/0x310
[  384.949924]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.955490]  ? check_preemption_disabled+0x48/0x280
[  384.960550]  handle_mm_fault+0x54f/0xc70
[  384.964628]  ? __handle_mm_fault+0x5be0/0x5be0
[  384.969569]  ? find_vma+0x34/0x190
[  384.973117]  __do_page_fault+0x5e8/0xe60
[  384.977179]  ? trace_hardirqs_off+0xb8/0x310
[  384.981601]  do_page_fault+0xf2/0x7e0
[  384.985405]  ? vmalloc_sync_all+0x30/0x30
[  384.989557]  ? error_entry+0x70/0xd0
[  384.993280]  ? trace_hardirqs_off_caller+0xbb/0x310
[  384.998307]  ? trace_hardirqs_on_caller+0xc0/0x310
[  385.003255]  ? syscall_return_slowpath+0x5e0/0x5e0
[  385.008211]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.013103]  ? trace_hardirqs_on_caller+0x310/0x310
[  385.018149]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  385.023636]  ? prepare_exit_to_usermode+0x291/0x3b0
[  385.028701]  ? page_fault+0x8/0x30
[  385.032264]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.037129]  ? page_fault+0x8/0x30
[  385.040688]  page_fault+0x1e/0x30
[  385.044178] RIP: 0033:0x40f9c0
[  385.047399] Code: Bad RIP value.
[  385.050801] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  385.056271] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  385.063561] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  385.070845] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  385.078131] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  385.085414] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  385.092720] warn_alloc_show_mem: 1 callbacks suppressed
[  385.092740] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  385.092742] Mem-Info:
[  385.092788] active_anon:54833 inactive_anon:712 isolated_anon:0
[  385.092788]  active_file:11 inactive_file:12 isolated_file:0
[  385.092788]  unevictable:0 dirty:0 writeback:0 unstable:0
[  385.092788]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  385.092788]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  385.092788]  free:13768 free_pcp:742 free_cma:0
[  385.098147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  385.098157] Call Trace:
[  385.104929] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  385.107344]  dump_stack+0x244/0x39d
[  385.140211] 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
[  385.149590]  ? dump_stack_print_info.cold.1+0x20/0x20
[  385.152149] lowmem_reserve[]: 0 2818 6321 6321
[  385.179761]  warn_alloc.cold.116+0xb7/0x1bd
[  385.183389] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  385.209514]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  385.214692] lowmem_reserve[]: 0 0 3503 3503
[  385.219306]  ? lock_downgrade+0x900/0x900
[  385.223604] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  385.251381]  ? trace_hardirqs_off+0xb8/0x310
[  385.256216] lowmem_reserve[]: 0 0 0 0
[  385.260552]  ? trace_hardirqs_off+0xb8/0x310
[  385.264685] 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
[  385.293861]  __alloc_pages_slowpath+0x26e8/0x2e10
[  385.298276] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  385.302106]  ? warn_alloc+0x120/0x120
[  385.306468] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  385.320015]  ? warn_alloc+0x120/0x120
[  385.324859] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  385.340587]  ? warn_alloc+0x120/0x120
[  385.344372] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  385.359726]  ? print_usage_bug+0xc0/0xc0
[  385.363501] 782 total pagecache pages
[  385.372595]  ? print_usage_bug+0xc0/0xc0
[  385.376395] 0 pages in swap cache
[  385.384986]  ? print_usage_bug+0xc0/0xc0
[  385.389032] Swap cache stats: add 0, delete 0, find 0/0
[  385.392829]  ? mark_held_locks+0x130/0x130
[  385.396878] Free swap  = 0kB
[  385.400334]  ? should_fail+0x22d/0xd01
[  385.404369] Total swap = 0kB
[  385.409737]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.413962] 1965979 pages RAM
[  385.416984]  ? should_fail+0x22d/0xd01
[  385.420851] 0 pages HighMem/MovableOnly
[  385.423874]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  385.429387] 342853 pages reserved
[  385.432502]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  385.436444] 0 pages cma reserved
[  385.436518] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  385.440426]  ? __lock_acquire+0x62f/0x4c20
[  385.440446]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  385.440462]  ? __lock_acquire+0x62f/0x4c20
[  385.445625] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  385.449008]  ? should_fail+0x22d/0xd01
[  385.454097] syz-fuzzer cpuset=/ mems_allowed=0
[  385.457472]  ? mark_held_locks+0x130/0x130
[  385.500481]  ? mark_held_locks+0x130/0x130
[  385.504733]  ? zap_class+0x640/0x640
[  385.508465]  ? zap_class+0x640/0x640
[  385.512191]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.517746]  ? check_preemption_disabled+0x48/0x280
[  385.522784]  ? zap_class+0x640/0x640
[  385.526545]  ? print_usage_bug+0xc0/0xc0
[  385.530628]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.536192]  ? check_preemption_disabled+0x48/0x280
[  385.541241]  ? __lock_is_held+0xb5/0x140
[  385.545336]  __alloc_pages_nodemask+0xa80/0xde0
[  385.550037]  ? zap_class+0x640/0x640
[  385.553790]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  385.558835]  ? find_held_lock+0x36/0x1c0
[  385.562928]  ? ____cache_alloc_node+0x1c7/0x1e0
[  385.567615]  ? lock_downgrade+0x900/0x900
[  385.571784]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.577343]  cache_grow_begin+0xa5/0x8c0
[  385.581418]  ? do_raw_spin_unlock+0xa7/0x330
[  385.585845]  fallback_alloc+0x204/0x2e0
[  385.589833]  ____cache_alloc_node+0x1c7/0x1e0
[  385.594336]  kmem_cache_alloc_node+0xe3/0x730
[  385.598838]  ? ipv6_get_ifaddr+0x42e/0x620
[  385.603085]  __alloc_skb+0x119/0x770
[  385.606800]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.612097]  ? netdev_alloc_frag+0x1f0/0x1f0
[  385.616517]  ? lock_downgrade+0x900/0x900
[  385.620692]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.626243]  ? refcount_sub_and_test_checked+0x203/0x310
[  385.631716]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  385.637188]  ? addrconf_rs_timer+0x690/0x690
[  385.641626]  ndisc_alloc_skb+0x144/0x340
[  385.645705]  ndisc_send_rs+0x331/0x6e0
[  385.649638]  addrconf_rs_timer+0x314/0x690
[  385.653894]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.658157]  call_timer_fn+0x272/0x920
[  385.662052]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.666299]  ? process_timeout+0x40/0x40
[  385.670830]  ? __run_timers+0x7da/0xc70
[  385.674821]  ? _raw_spin_unlock_irq+0x27/0x80
[  385.679322]  ? _raw_spin_unlock_irq+0x27/0x80
[  385.683817]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.688091]  ? lockdep_hardirqs_on+0x296/0x5b0
[  385.692675]  ? trace_hardirqs_on+0xbd/0x310
[  385.697029]  ? kasan_check_read+0x11/0x20
[  385.701188]  ? __run_timers+0x7da/0xc70
[  385.705201]  ? trace_hardirqs_off_caller+0x310/0x310
[  385.710332]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.714567]  __run_timers+0x7e5/0xc70
[  385.718421]  ? timer_fixup_init+0x70/0x70
[  385.722580]  ? _raw_spin_unlock_irq+0x27/0x80
[  385.727072]  ? _raw_spin_unlock_irq+0x27/0x80
[  385.731586]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  385.736174]  ? trace_hardirqs_on+0xbd/0x310
[  385.740494]  ? kasan_check_read+0x11/0x20
[  385.744673]  ? finish_task_switch+0x1f4/0x910
[  385.749172]  ? trace_hardirqs_off_caller+0x310/0x310
[  385.754297]  ? compat_start_thread+0x80/0x80
[  385.758779]  ? pvclock_read_flags+0x160/0x160
[  385.763285]  ? __switch_to_asm+0x34/0x70
[  385.767357]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.772899]  ? check_preemption_disabled+0x48/0x280
[  385.777926]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  385.783465]  ? rcu_pm_notify+0xc0/0xc0
[  385.787356]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.792894]  ? check_preemption_disabled+0x48/0x280
[  385.797919]  run_timer_softirq+0x52/0xb0
[  385.801984]  ? rcu_read_lock_sched_held+0x14f/0x180
[  385.807039]  __do_softirq+0x308/0xb7e
[  385.810849]  ? retint_kernel+0x2d/0x2d
[  385.814742]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  385.819846]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  385.825308]  ? trace_hardirqs_on+0x310/0x310
[  385.829726]  ? schedule+0x108/0x460
[  385.833355]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  385.838130]  ? trace_hardirqs_off+0xb8/0x310
[  385.842543]  ? smpboot_thread_fn+0x68b/0xa00
[  385.846957]  ? trace_hardirqs_on+0x310/0x310
[  385.851373]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.856931]  ? check_preemption_disabled+0x48/0x280
[  385.861954]  ? takeover_tasklets+0xa90/0xa90
[  385.866371]  run_ksoftirqd+0x5e/0x100
[  385.870199]  smpboot_thread_fn+0x68b/0xa00
[  385.874475]  ? sort_range+0x30/0x30
[  385.878111]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  385.883220]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.888783]  ? __kthread_parkme+0xfb/0x1a0
[  385.893062]  ? sort_range+0x30/0x30
[  385.896726]  kthread+0x35a/0x440
[  385.900109]  ? kthread_stop+0x900/0x900
[  385.904100]  ret_from_fork+0x3a/0x50
[  385.907889] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  385.907962] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  385.914831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  385.914837] Call Trace:
[  385.914843]  <IRQ>
[  385.914866]  dump_stack+0x244/0x39d
[  385.914881]  ? dump_stack_print_info.cold.1+0x20/0x20
[  385.914909]  warn_alloc.cold.116+0xb7/0x1bd
[  385.921536] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  385.930788]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  385.933345] ksoftirqd/0 cpuset=/ mems_allowed=0
[  385.935502]  ? lock_downgrade+0x900/0x900
[  385.972573]  ? trace_hardirqs_off+0xb8/0x310
[  385.977007]  ? trace_hardirqs_off+0xb8/0x310
[  385.981439]  __alloc_pages_slowpath+0x26e8/0x2e10
[  385.986319]  ? warn_alloc+0x120/0x120
[  385.990130]  ? print_usage_bug+0xc0/0xc0
[  385.994199]  ? warn_alloc+0x120/0x120
[  385.998008]  ? warn_alloc+0x120/0x120
[  386.001827]  ? print_usage_bug+0xc0/0xc0
[  386.005907]  ? print_usage_bug+0xc0/0xc0
[  386.009976]  ? __lock_acquire+0x62f/0x4c20
[  386.014230]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.019789]  ? should_fail+0x22d/0xd01
[  386.023678]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  386.028805]  ? __lock_acquire+0x62f/0x4c20
[  386.033044]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  386.038164]  ? __lock_acquire+0x62f/0x4c20
[  386.042397]  ? should_fail+0x22d/0xd01
[  386.046302]  ? find_held_lock+0x36/0x1c0
[  386.050386]  ? mark_held_locks+0x130/0x130
[  386.054626]  ? mark_held_locks+0x130/0x130
[  386.058891]  ? zap_class+0x640/0x640
[  386.062621]  ? zap_class+0x640/0x640
[  386.066353]  ? print_usage_bug+0xc0/0xc0
[  386.070431]  ? do_raw_spin_unlock+0xa7/0x330
[  386.074845]  ? zap_class+0x640/0x640
[  386.078563]  ? print_usage_bug+0xc0/0xc0
[  386.082628]  ? wq_watchdog_touch+0x9c/0xfe
[  386.086871]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.092417]  ? check_preemption_disabled+0x48/0x280
[  386.097446]  ? __lock_is_held+0xb5/0x140
[  386.101535]  __alloc_pages_nodemask+0xa80/0xde0
[  386.106202]  ? zap_class+0x640/0x640
[  386.109951]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  386.114977]  ? find_held_lock+0x36/0x1c0
[  386.119074]  ? ____cache_alloc_node+0x1c7/0x1e0
[  386.123746]  ? lock_downgrade+0x900/0x900
[  386.127908]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.133451]  cache_grow_begin+0xa5/0x8c0
[  386.137530]  ? do_raw_spin_unlock+0xa7/0x330
[  386.141948]  fallback_alloc+0x204/0x2e0
[  386.145948]  ____cache_alloc_node+0x1c7/0x1e0
[  386.150479]  kmem_cache_alloc_node+0xe3/0x730
[  386.154976]  ? ipv6_get_ifaddr+0x42e/0x620
[  386.159242]  __alloc_skb+0x119/0x770
[  386.162955]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.168253]  ? netdev_alloc_frag+0x1f0/0x1f0
[  386.172679]  ? lock_downgrade+0x900/0x900
[  386.176835]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.182384]  ? refcount_sub_and_test_checked+0x203/0x310
[  386.187840]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  386.193298]  ? addrconf_rs_timer+0x690/0x690
[  386.197723]  ndisc_alloc_skb+0x144/0x340
[  386.201796]  ndisc_send_rs+0x331/0x6e0
[  386.205691]  addrconf_rs_timer+0x314/0x690
[  386.209932]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.214179]  call_timer_fn+0x272/0x920
[  386.218067]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.222304]  ? process_timeout+0x40/0x40
[  386.226379]  ? mark_held_locks+0xc7/0x130
[  386.230537]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.235034]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.239532]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.243776]  ? lockdep_hardirqs_on+0x296/0x5b0
[  386.248368]  ? trace_hardirqs_on+0xbd/0x310
[  386.252713]  ? kasan_check_read+0x11/0x20
[  386.256862]  ? __run_timers+0x7da/0xc70
[  386.260841]  ? trace_hardirqs_off_caller+0x310/0x310
[  386.265969]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.270220]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.274460]  __run_timers+0x7e5/0xc70
[  386.278276]  ? timer_fixup_init+0x70/0x70
[  386.282453]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  386.287472]  ? zap_class+0x640/0x640
[  386.291193]  ? print_usage_bug+0xc0/0xc0
[  386.295273]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  386.300472]  ? find_held_lock+0x36/0x1c0
[  386.304540]  ? zap_class+0x640/0x640
[  386.308262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.313857]  ? check_preemption_disabled+0x48/0x280
[  386.318892]  ? __lock_is_held+0xb5/0x140
[  386.322959]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.328503]  ? check_preemption_disabled+0x48/0x280
[  386.333533]  run_timer_softirq+0x52/0xb0
[  386.337599]  ? rcu_read_lock_sched_held+0x14f/0x180
[  386.342621]  __do_softirq+0x308/0xb7e
[  386.346432]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  386.350930]  ? lock_downgrade+0x900/0x900
[  386.355085]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  386.360284]  ? pvclock_read_flags+0x160/0x160
[  386.364803]  ? lapic_next_event+0x5a/0x90
[  386.368989]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.374544]  ? kvm_clock_read+0x18/0x30
[  386.378521]  ? kvm_sched_clock_read+0x9/0x20
[  386.382951]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.388517]  ? check_preemption_disabled+0x48/0x280
[  386.393548]  irq_exit+0x17f/0x1c0
[  386.397027]  smp_apic_timer_interrupt+0x1cb/0x760
[  386.401871]  ? smp_call_function_single_interrupt+0x159/0x650
[  386.407757]  ? smp_call_function_single_interrupt+0x650/0x650
[  386.413646]  ? interrupt_entry+0xb5/0xc0
[  386.417709]  ? trace_hardirqs_off_caller+0xbb/0x310
[  386.422739]  ? trace_hardirqs_off_caller+0xbb/0x310
[  386.427759]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  386.432613]  ? trace_hardirqs_on_caller+0x310/0x310
[  386.437629]  ? trace_hardirqs_on_caller+0x310/0x310
[  386.442680]  ? task_prio+0x50/0x50
[  386.446225]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.451775]  ? check_preemption_disabled+0x48/0x280
[  386.456805]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  386.461662]  apic_timer_interrupt+0xf/0x20
[  386.465892]  </IRQ>
[  386.468151] RIP: 0010:dump_stack+0x358/0x39d
[  386.472566] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  386.491470] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  386.499185] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  386.506454] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  386.513724] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  386.521024] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  386.528291] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  386.535600]  ? dump_stack+0x34f/0x39d
[  386.539419]  ? dump_stack_print_info.cold.1+0x20/0x20
[  386.544619]  ? mark_held_locks+0x130/0x130
[  386.548859]  ? mark_held_locks+0x130/0x130
[  386.553098]  dump_header+0x27b/0xf72
[  386.556828]  ? pagefault_out_of_memory+0x197/0x197
[  386.561773]  ? __lock_acquire+0x62f/0x4c20
[  386.566023]  ? percpu_ref_get_many+0x240/0x240
[  386.570612]  ? print_usage_bug+0xc0/0xc0
[  386.574685]  ? zap_class+0x640/0x640
[  386.578412]  ? print_usage_bug+0xc0/0xc0
[  386.582474]  ? print_usage_bug+0xc0/0xc0
[  386.586569]  ? zap_class+0x640/0x640
[  386.590300]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.595850]  ? find_held_lock+0x36/0x1c0
[  386.599922]  ? mark_held_locks+0xc7/0x130
[  386.604075]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  386.609221]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  386.614332]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  386.618940]  ? trace_hardirqs_on+0xbd/0x310
[  386.623274]  ? kasan_check_read+0x11/0x20
[  386.627439]  ? ___ratelimit+0x3b4/0x672
[  386.631422]  ? trace_hardirqs_off_caller+0x310/0x310
[  386.636542]  ? trace_hardirqs_on+0x310/0x310
[  386.640964]  ? lock_downgrade+0x900/0x900
[  386.645141]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  386.650247]  ? ___ratelimit+0x3b9/0x672
[  386.654230]  ? idr_get_free+0xf70/0xf70
[  386.658211]  ? find_held_lock+0x36/0x1c0
[  386.662284]  oom_kill_process.cold.27+0x10/0x903
[  386.667075]  ? zap_class+0x640/0x640
[  386.670806]  ? check_preemption_disabled+0x48/0x280
[  386.675831]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  386.680763]  ? kasan_check_read+0x11/0x20
[  386.684917]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.690227]  ? oom_evaluate_task+0x540/0x540
[  386.694649]  ? find_held_lock+0x36/0x1c0
[  386.698733]  ? out_of_memory+0x974/0x1430
[  386.702892]  ? lock_downgrade+0x900/0x900
[  386.707046]  ? check_preemption_disabled+0x48/0x280
[  386.712071]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  386.717012]  ? kasan_check_read+0x11/0x20
[  386.721179]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.726455]  ? rcu_softirq_qs+0x20/0x20
[  386.730440]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.736022]  ? oom_evaluate_task+0x302/0x540
[  386.740475]  out_of_memory+0xa84/0x1430
[  386.744459]  ? oom_killer_disable+0x3a0/0x3a0
[  386.748960]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  386.753914]  ? __ww_mutex_check_waiters+0x160/0x160
[  386.758944]  __alloc_pages_slowpath+0x2354/0x2e10
[  386.763840]  ? warn_alloc+0x120/0x120
[  386.767669]  ? mark_held_locks+0x130/0x130
[  386.771933]  ? find_get_entry+0xaae/0x1120
[  386.776191]  ? filemap_map_pages+0x1a20/0x1a20
[  386.780783]  ? zap_class+0x640/0x640
[  386.784546]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.790086]  ? check_preemption_disabled+0x48/0x280
[  386.795105]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.801102]  ? should_fail+0x22d/0xd01
[  386.805001]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  386.810107]  ? zap_class+0x640/0x640
[  386.813847]  ? __lock_is_held+0xb5/0x140
[  386.817934]  ? mark_held_locks+0x130/0x130
[  386.822174]  ? lock_release+0xa00/0xa00
[  386.826153]  ? perf_trace_sched_process_exec+0x860/0x860
[  386.831634]  ? xa_load+0x2ba/0x460
[  386.835178]  ? lock_downgrade+0x900/0x900
[  386.839345]  ? __might_sleep+0x95/0x190
[  386.843326]  __alloc_pages_nodemask+0xa80/0xde0
[  386.848033]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  386.853086]  ? __page_cache_alloc+0x191/0x5c0
[  386.857613]  ? xa_load+0x2e1/0x460
[  386.861173]  ? xa_clear_mark+0x40/0x40
[  386.865064]  ? zap_class+0x640/0x640
[  386.868829]  ? zap_class+0x640/0x640
[  386.872556]  ? zap_class+0x640/0x640
[  386.876273]  ? __do_page_cache_readahead+0x663/0x810
[  386.881385]  ? find_held_lock+0x36/0x1c0
[  386.885469]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  386.891034]  alloc_pages_current+0x173/0x350
[  386.895450]  __page_cache_alloc+0x38c/0x5c0
[  386.899790]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  386.904761]  ? kasan_check_read+0x11/0x20
[  386.908941]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.914255]  ? generic_perform_write+0x6a0/0x6a0
[  386.919038]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.924583]  ? check_preemption_disabled+0x48/0x280
[  386.929606]  filemap_fault+0x1595/0x25f0
[  386.933700]  ? __lock_page_or_retry+0xa00/0xa00
[  386.938402]  ? mark_held_locks+0x130/0x130
[  386.942648]  ? filemap_map_pages+0xd6b/0x1a20
[  386.947160]  ? lock_downgrade+0x900/0x900
[  386.951314]  ? check_preemption_disabled+0x48/0x280
[  386.956337]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  386.961267]  ? kasan_check_read+0x11/0x20
[  386.965417]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.970695]  ? rcu_softirq_qs+0x20/0x20
[  386.974709]  ? filemap_map_pages+0xd92/0x1a20
[  386.979212]  ? find_get_entries_tag+0x1400/0x1400
[  386.984064]  ? debug_object_destroy+0x2b0/0x2b0
[  386.988751]  ? lock_pi_update_atomic+0x150/0x150
[  386.993509]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.999066]  ? lock_acquire+0x1ed/0x520
[  387.003067]  ? ext4_filemap_fault+0x7a/0xad
[  387.007398]  ? lock_release+0xa00/0xa00
[  387.011373]  ? perf_trace_sched_process_exec+0x860/0x860
[  387.016824]  ? print_usage_bug+0xc0/0xc0
[  387.020885]  ? print_usage_bug+0xc0/0xc0
[  387.024957]  ? down_read+0x8d/0x120
[  387.028583]  ? ext4_filemap_fault+0x7a/0xad
[  387.032904]  ? __down_interruptible+0x700/0x700
[  387.037596]  ext4_filemap_fault+0x82/0xad
[  387.041747]  __do_fault+0x100/0x6b0
[  387.045382]  ? pmd_devmap_trans_unstable+0x220/0x220
[  387.050491]  ? mark_held_locks+0x130/0x130
[  387.054728]  ? mark_held_locks+0x130/0x130
[  387.058978]  ? debug_smp_processor_id+0x1c/0x20
[  387.063656]  ? perf_trace_lock+0x14d/0x7a0
[  387.067896]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.073456]  __handle_mm_fault+0x3ea0/0x5be0
[  387.077874]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  387.082745]  ? lock_is_held_type+0x210/0x210
[  387.087169]  ? ksys_dup3+0x680/0x680
[  387.090908]  ? zap_class+0x640/0x640
[  387.094630]  ? zap_class+0x640/0x640
[  387.098359]  ? __x64_sys_futex+0x53e/0x6a0
[  387.102598]  ? find_held_lock+0x36/0x1c0
[  387.106675]  ? handle_mm_fault+0x42a/0xc70
[  387.110920]  ? lock_downgrade+0x900/0x900
[  387.115084]  ? check_preemption_disabled+0x48/0x280
[  387.120120]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  387.125065]  ? kasan_check_read+0x11/0x20
[  387.129210]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.134496]  ? rcu_softirq_qs+0x20/0x20
[  387.138469]  ? trace_hardirqs_off_caller+0x310/0x310
[  387.143572]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.149108]  ? check_preemption_disabled+0x48/0x280
[  387.154129]  handle_mm_fault+0x54f/0xc70
[  387.158189]  ? __handle_mm_fault+0x5be0/0x5be0
[  387.162779]  ? find_vma+0x34/0x190
[  387.166324]  __do_page_fault+0x5e8/0xe60
[  387.170402]  ? trace_hardirqs_off+0xb8/0x310
[  387.174820]  do_page_fault+0xf2/0x7e0
[  387.178623]  ? vmalloc_sync_all+0x30/0x30
[  387.182780]  ? error_entry+0x70/0xd0
[  387.186497]  ? trace_hardirqs_off_caller+0xbb/0x310
[  387.191514]  ? trace_hardirqs_on_caller+0xc0/0x310
[  387.196440]  ? syscall_return_slowpath+0x5e0/0x5e0
[  387.201387]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.206231]  ? trace_hardirqs_on_caller+0x310/0x310
[  387.211259]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  387.216712]  ? prepare_exit_to_usermode+0x291/0x3b0
[  387.221727]  ? page_fault+0x8/0x30
[  387.225272]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.230135]  ? page_fault+0x8/0x30
[  387.233674]  page_fault+0x1e/0x30
[  387.237126] RIP: 0033:0x40f9c0
[  387.240330] Code: Bad RIP value.
[  387.243708] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  387.249070] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  387.256340] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  387.263618] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  387.270881] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  387.278144] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  387.285434] warn_alloc_show_mem: 1 callbacks suppressed
[  387.285446] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  387.285448] Mem-Info:
[  387.285479] active_anon:54833 inactive_anon:712 isolated_anon:0
[  387.285479]  active_file:11 inactive_file:12 isolated_file:0
[  387.285479]  unevictable:0 dirty:0 writeback:0 unstable:0
[  387.285479]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  387.285479]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  387.285479]  free:13768 free_pcp:742 free_cma:0
[  387.290824] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  387.297610] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  387.300040] Call Trace:
[  387.333143] 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
[  387.342500]  dump_stack+0x244/0x39d
[  387.370071] lowmem_reserve[]: 0 2818 6321 6321
[  387.372654]  ? dump_stack_print_info.cold.1+0x20/0x20
[  387.398736] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  387.402371]  warn_alloc.cold.116+0xb7/0x1bd
[  387.406914] lowmem_reserve[]: 0 0 3503 3503
[  387.412109]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  387.439841] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  387.444169]  ? lock_downgrade+0x900/0x900
[  387.448462] lowmem_reserve[]: 0 0 0 0
[  387.453308]  ? trace_hardirqs_off+0xb8/0x310
[  387.482428] 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
[  387.486574]  ? trace_hardirqs_off+0xb8/0x310
[  387.490346] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  387.494767]  __alloc_pages_slowpath+0x26e8/0x2e10
[  387.508265] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  387.512701]  ? warn_alloc+0x120/0x120
[  387.528352] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  387.533186]  ? print_usage_bug+0xc0/0xc0
[  387.548509] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  387.552333]  ? warn_alloc+0x120/0x120
[  387.561181] 782 total pagecache pages
[  387.565234]  ? warn_alloc+0x120/0x120
[  387.573796] 0 pages in swap cache
[  387.577618]  ? print_usage_bug+0xc0/0xc0
[  387.581416] Swap cache stats: add 0, delete 0, find 0/0
[  387.585222]  ? print_usage_bug+0xc0/0xc0
[  387.588650] Free swap  = 0kB
[  387.592706]  ? __lock_acquire+0x62f/0x4c20
[  387.598044] Total swap = 0kB
[  387.602100]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.605091] 1965979 pages RAM
[  387.609316]  ? should_fail+0x22d/0xd01
[  387.612309] 0 pages HighMem/MovableOnly
[  387.617850]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  387.620931] 342853 pages reserved
[  387.624808]  ? __lock_acquire+0x62f/0x4c20
[  387.628753] 0 pages cma reserved
[  387.633844]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  387.637344] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  387.641491]  ? __lock_acquire+0x62f/0x4c20
[  387.641503]  ? should_fail+0x22d/0xd01
[  387.641515]  ? find_held_lock+0x36/0x1c0
[  387.641534]  ? mark_held_locks+0x130/0x130
[  387.644940] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  387.649976]  ? mark_held_locks+0x130/0x130
[  387.656437] syz-fuzzer cpuset=/ mems_allowed=0
[  387.660707]  ? zap_class+0x640/0x640
[  387.695807]  ? mark_held_locks+0xc7/0x130
[  387.699948]  ? do_raw_spin_unlock+0xa7/0x330
[  387.704358]  ? zap_class+0x640/0x640
[  387.708066]  ? print_usage_bug+0xc0/0xc0
[  387.712165]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.717713]  ? check_preemption_disabled+0x48/0x280
[  387.722733]  ? __lock_is_held+0xb5/0x140
[  387.726811]  __alloc_pages_nodemask+0xa80/0xde0
[  387.731476]  ? zap_class+0x640/0x640
[  387.735190]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  387.740213]  ? find_held_lock+0x36/0x1c0
[  387.744283]  ? ____cache_alloc_node+0x1c7/0x1e0
[  387.748966]  ? lock_downgrade+0x900/0x900
[  387.753128]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.758675]  cache_grow_begin+0xa5/0x8c0
[  387.762733]  ? do_raw_spin_unlock+0xa7/0x330
[  387.767161]  fallback_alloc+0x204/0x2e0
[  387.771159]  ____cache_alloc_node+0x1c7/0x1e0
[  387.775659]  kmem_cache_alloc_node+0xe3/0x730
[  387.780160]  ? ipv6_get_ifaddr+0x42e/0x620
[  387.784418]  __alloc_skb+0x119/0x770
[  387.788129]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.793409]  ? netdev_alloc_frag+0x1f0/0x1f0
[  387.797817]  ? lock_downgrade+0x900/0x900
[  387.801972]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.807521]  ? refcount_sub_and_test_checked+0x203/0x310
[  387.812988]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  387.818446]  ? addrconf_rs_timer+0x690/0x690
[  387.822910]  ndisc_alloc_skb+0x144/0x340
[  387.826984]  ndisc_send_rs+0x331/0x6e0
[  387.830889]  addrconf_rs_timer+0x314/0x690
[  387.835134]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.839381]  call_timer_fn+0x272/0x920
[  387.843291]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.847529]  ? process_timeout+0x40/0x40
[  387.851598]  ? __run_timers+0x7da/0xc70
[  387.855576]  ? _raw_spin_unlock_irq+0x27/0x80
[  387.860174]  ? _raw_spin_unlock_irq+0x27/0x80
[  387.864676]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.868916]  ? lockdep_hardirqs_on+0x296/0x5b0
[  387.873501]  ? trace_hardirqs_on+0xbd/0x310
[  387.877827]  ? kasan_check_read+0x11/0x20
[  387.881990]  ? __run_timers+0x7da/0xc70
[  387.885988]  ? trace_hardirqs_off_caller+0x310/0x310
[  387.891138]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.895395]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.899643]  __run_timers+0x7e5/0xc70
[  387.903454]  ? timer_fixup_init+0x70/0x70
[  387.907604]  ? _raw_spin_unlock_irq+0x27/0x80
[  387.912104]  ? _raw_spin_unlock_irq+0x27/0x80
[  387.916601]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  387.921189]  ? trace_hardirqs_on+0xbd/0x310
[  387.925517]  ? kasan_check_read+0x11/0x20
[  387.929667]  ? finish_task_switch+0x1f4/0x910
[  387.934166]  ? trace_hardirqs_off_caller+0x310/0x310
[  387.939279]  ? compat_start_thread+0x80/0x80
[  387.943713]  ? pvclock_read_flags+0x160/0x160
[  387.948225]  ? __switch_to_asm+0x34/0x70
[  387.952300]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.957838]  ? check_preemption_disabled+0x48/0x280
[  387.962863]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  387.968404]  ? rcu_pm_notify+0xc0/0xc0
[  387.972302]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.977846]  ? check_preemption_disabled+0x48/0x280
[  387.982867]  run_timer_softirq+0x52/0xb0
[  387.986931]  ? rcu_read_lock_sched_held+0x14f/0x180
[  387.991969]  __do_softirq+0x308/0xb7e
[  387.995800]  ? retint_kernel+0x2d/0x2d
[  387.999699]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  388.004808]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  388.010282]  ? trace_hardirqs_on+0x310/0x310
[  388.014703]  ? schedule+0x108/0x460
[  388.018345]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  388.023110]  ? trace_hardirqs_off+0xb8/0x310
[  388.027526]  ? smpboot_thread_fn+0x68b/0xa00
[  388.031951]  ? trace_hardirqs_on+0x310/0x310
[  388.036364]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.041908]  ? check_preemption_disabled+0x48/0x280
[  388.046928]  ? takeover_tasklets+0xa90/0xa90
[  388.051343]  run_ksoftirqd+0x5e/0x100
[  388.055152]  smpboot_thread_fn+0x68b/0xa00
[  388.059407]  ? sort_range+0x30/0x30
[  388.063039]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  388.068147]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.073692]  ? __kthread_parkme+0xfb/0x1a0
[  388.077939]  ? sort_range+0x30/0x30
[  388.081569]  kthread+0x35a/0x440
[  388.084952]  ? kthread_stop+0x900/0x900
[  388.088930]  ret_from_fork+0x3a/0x50
[  388.092663] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  388.092739] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  388.099595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  388.099601] Call Trace:
[  388.099607]  <IRQ>
[  388.099626]  dump_stack+0x244/0x39d
[  388.099644]  ? dump_stack_print_info.cold.1+0x20/0x20
[  388.106173] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  388.115477]  warn_alloc.cold.116+0xb7/0x1bd
[  388.118034] ksoftirqd/0 cpuset=/ mems_allowed=0
[  388.120183]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  388.153100]  ? lock_downgrade+0x900/0x900
[  388.157260]  ? trace_hardirqs_off+0xb8/0x310
[  388.161678]  ? trace_hardirqs_off+0xb8/0x310
[  388.166096]  __alloc_pages_slowpath+0x26e8/0x2e10
[  388.170968]  ? warn_alloc+0x120/0x120
[  388.174783]  ? print_usage_bug+0xc0/0xc0
[  388.178852]  ? warn_alloc+0x120/0x120
[  388.182667]  ? warn_alloc+0x120/0x120
[  388.186468]  ? print_usage_bug+0xc0/0xc0
[  388.190566]  ? print_usage_bug+0xc0/0xc0
[  388.194632]  ? __lock_acquire+0x62f/0x4c20
[  388.198877]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.204418]  ? should_fail+0x22d/0xd01
[  388.208311]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  388.213413]  ? __lock_acquire+0x62f/0x4c20
[  388.217672]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  388.222797]  ? __lock_acquire+0x62f/0x4c20
[  388.227031]  ? should_fail+0x22d/0xd01
[  388.230921]  ? find_held_lock+0x36/0x1c0
[  388.234991]  ? mark_held_locks+0x130/0x130
[  388.239239]  ? mark_held_locks+0x130/0x130
[  388.243501]  ? zap_class+0x640/0x640
[  388.247216]  ? zap_class+0x640/0x640
[  388.250937]  ? print_usage_bug+0xc0/0xc0
[  388.255006]  ? do_raw_spin_unlock+0xa7/0x330
[  388.259436]  ? zap_class+0x640/0x640
[  388.263156]  ? print_usage_bug+0xc0/0xc0
[  388.267222]  ? wq_watchdog_touch+0x9c/0xfe
[  388.271462]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.277013]  ? check_preemption_disabled+0x48/0x280
[  388.282044]  ? __lock_is_held+0xb5/0x140
[  388.286125]  __alloc_pages_nodemask+0xa80/0xde0
[  388.290799]  ? zap_class+0x640/0x640
[  388.294525]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  388.299553]  ? find_held_lock+0x36/0x1c0
[  388.303628]  ? ____cache_alloc_node+0x1c7/0x1e0
[  388.308301]  ? lock_downgrade+0x900/0x900
[  388.312477]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.318029]  cache_grow_begin+0xa5/0x8c0
[  388.322092]  ? do_raw_spin_unlock+0xa7/0x330
[  388.326509]  fallback_alloc+0x204/0x2e0
[  388.330491]  ____cache_alloc_node+0x1c7/0x1e0
[  388.335006]  kmem_cache_alloc_node+0xe3/0x730
[  388.339521]  ? ipv6_get_ifaddr+0x42e/0x620
[  388.343782]  __alloc_skb+0x119/0x770
[  388.347499]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.352786]  ? netdev_alloc_frag+0x1f0/0x1f0
[  388.357195]  ? lock_downgrade+0x900/0x900
[  388.361367]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.366912]  ? refcount_sub_and_test_checked+0x203/0x310
[  388.372371]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  388.377823]  ? addrconf_rs_timer+0x690/0x690
[  388.382247]  ndisc_alloc_skb+0x144/0x340
[  388.386328]  ndisc_send_rs+0x331/0x6e0
[  388.390223]  addrconf_rs_timer+0x314/0x690
[  388.394465]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.398712]  call_timer_fn+0x272/0x920
[  388.402601]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.406838]  ? process_timeout+0x40/0x40
[  388.410925]  ? mark_held_locks+0xc7/0x130
[  388.415079]  ? _raw_spin_unlock_irq+0x27/0x80
[  388.419575]  ? _raw_spin_unlock_irq+0x27/0x80
[  388.424074]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.428337]  ? lockdep_hardirqs_on+0x296/0x5b0
[  388.432926]  ? trace_hardirqs_on+0xbd/0x310
[  388.437248]  ? kasan_check_read+0x11/0x20
[  388.441395]  ? __run_timers+0x7da/0xc70
[  388.445375]  ? trace_hardirqs_off_caller+0x310/0x310
[  388.450494]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.454738]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.458976]  __run_timers+0x7e5/0xc70
[  388.462800]  ? timer_fixup_init+0x70/0x70
[  388.466955]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  388.471974]  ? zap_class+0x640/0x640
[  388.475701]  ? print_usage_bug+0xc0/0xc0
[  388.479767]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  388.484984]  ? find_held_lock+0x36/0x1c0
[  388.489062]  ? zap_class+0x640/0x640
[  388.492786]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.498342]  ? check_preemption_disabled+0x48/0x280
[  388.503375]  ? __lock_is_held+0xb5/0x140
[  388.507615]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.513154]  ? check_preemption_disabled+0x48/0x280
[  388.518193]  run_timer_softirq+0x52/0xb0
[  388.522263]  ? rcu_read_lock_sched_held+0x14f/0x180
[  388.527299]  __do_softirq+0x308/0xb7e
[  388.531110]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  388.535609]  ? lock_downgrade+0x900/0x900
[  388.539767]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  388.544884]  ? pvclock_read_flags+0x160/0x160
[  388.549388]  ? lapic_next_event+0x5a/0x90
[  388.553546]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.559087]  ? kvm_clock_read+0x18/0x30
[  388.563062]  ? kvm_sched_clock_read+0x9/0x20
[  388.567476]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.573039]  ? check_preemption_disabled+0x48/0x280
[  388.578073]  irq_exit+0x17f/0x1c0
[  388.581529]  smp_apic_timer_interrupt+0x1cb/0x760
[  388.586373]  ? smp_call_function_single_interrupt+0x159/0x650
[  388.592265]  ? smp_call_function_single_interrupt+0x650/0x650
[  388.598151]  ? interrupt_entry+0xb5/0xc0
[  388.602219]  ? trace_hardirqs_off_caller+0xbb/0x310
[  388.607263]  ? trace_hardirqs_off_caller+0xbb/0x310
[  388.612283]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.617131]  ? trace_hardirqs_on_caller+0x310/0x310
[  388.622145]  ? trace_hardirqs_on_caller+0x310/0x310
[  388.627164]  ? task_prio+0x50/0x50
[  388.630707]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.636260]  ? check_preemption_disabled+0x48/0x280
[  388.641280]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.646148]  apic_timer_interrupt+0xf/0x20
[  388.650378]  </IRQ>
[  388.652619] RIP: 0010:dump_stack+0x358/0x39d
[  388.657033] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  388.675939] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  388.683680] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  388.690979] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  388.698248] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  388.705512] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  388.712802] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  388.720095]  ? dump_stack+0x34f/0x39d
[  388.723907]  ? dump_stack_print_info.cold.1+0x20/0x20
[  388.729104]  ? mark_held_locks+0x130/0x130
[  388.733338]  ? mark_held_locks+0x130/0x130
[  388.737608]  dump_header+0x27b/0xf72
[  388.741336]  ? pagefault_out_of_memory+0x197/0x197
[  388.746276]  ? __lock_acquire+0x62f/0x4c20
[  388.750530]  ? percpu_ref_get_many+0x240/0x240
[  388.755115]  ? print_usage_bug+0xc0/0xc0
[  388.759182]  ? zap_class+0x640/0x640
[  388.762897]  ? print_usage_bug+0xc0/0xc0
[  388.766956]  ? print_usage_bug+0xc0/0xc0
[  388.771034]  ? zap_class+0x640/0x640
[  388.774757]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.780322]  ? find_held_lock+0x36/0x1c0
[  388.784448]  ? mark_held_locks+0xc7/0x130
[  388.788598]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  388.793701]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  388.799284]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  388.803871]  ? trace_hardirqs_on+0xbd/0x310
[  388.808696]  ? kasan_check_read+0x11/0x20
[  388.812845]  ? ___ratelimit+0x3b4/0x672
[  388.816820]  ? trace_hardirqs_off_caller+0x310/0x310
[  388.821942]  ? trace_hardirqs_on+0x310/0x310
[  388.826354]  ? lock_downgrade+0x900/0x900
[  388.830517]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  388.835626]  ? ___ratelimit+0x3b9/0x672
[  388.839604]  ? idr_get_free+0xf70/0xf70
[  388.843582]  ? find_held_lock+0x36/0x1c0
[  388.847658]  oom_kill_process.cold.27+0x10/0x903
[  388.852419]  ? zap_class+0x640/0x640
[  388.856142]  ? check_preemption_disabled+0x48/0x280
[  388.861164]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  388.866096]  ? kasan_check_read+0x11/0x20
[  388.870257]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.875535]  ? oom_evaluate_task+0x540/0x540
[  388.879950]  ? find_held_lock+0x36/0x1c0
[  388.884029]  ? out_of_memory+0x974/0x1430
[  388.888184]  ? lock_downgrade+0x900/0x900
[  388.892348]  ? check_preemption_disabled+0x48/0x280
[  388.897373]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  388.902307]  ? kasan_check_read+0x11/0x20
[  388.906454]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.911735]  ? rcu_softirq_qs+0x20/0x20
[  388.915717]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.921253]  ? oom_evaluate_task+0x302/0x540
[  388.925711]  out_of_memory+0xa84/0x1430
[  388.929695]  ? oom_killer_disable+0x3a0/0x3a0
[  388.934208]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  388.939144]  ? __ww_mutex_check_waiters+0x160/0x160
[  388.944176]  __alloc_pages_slowpath+0x2354/0x2e10
[  388.949087]  ? warn_alloc+0x120/0x120
[  388.952892]  ? mark_held_locks+0x130/0x130
[  388.957134]  ? find_get_entry+0xaae/0x1120
[  388.961379]  ? filemap_map_pages+0x1a20/0x1a20
[  388.965967]  ? zap_class+0x640/0x640
[  388.969693]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.975235]  ? check_preemption_disabled+0x48/0x280
[  388.980269]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.985811]  ? should_fail+0x22d/0xd01
[  388.989702]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  388.994808]  ? zap_class+0x640/0x640
[  388.998606]  ? __lock_is_held+0xb5/0x140
[  389.002693]  ? mark_held_locks+0x130/0x130
[  389.006934]  ? lock_release+0xa00/0xa00
[  389.010923]  ? perf_trace_sched_process_exec+0x860/0x860
[  389.016377]  ? xa_load+0x2ba/0x460
[  389.019923]  ? lock_downgrade+0x900/0x900
[  389.024096]  ? __might_sleep+0x95/0x190
[  389.028079]  __alloc_pages_nodemask+0xa80/0xde0
[  389.032797]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  389.037815]  ? __page_cache_alloc+0x191/0x5c0
[  389.042341]  ? xa_load+0x2e1/0x460
[  389.045887]  ? xa_clear_mark+0x40/0x40
[  389.049804]  ? zap_class+0x640/0x640
[  389.053528]  ? zap_class+0x640/0x640
[  389.057246]  ? zap_class+0x640/0x640
[  389.060963]  ? __do_page_cache_readahead+0x663/0x810
[  389.066078]  ? find_held_lock+0x36/0x1c0
[  389.070147]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  389.075695]  alloc_pages_current+0x173/0x350
[  389.080113]  __page_cache_alloc+0x38c/0x5c0
[  389.084434]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  389.089363]  ? kasan_check_read+0x11/0x20
[  389.093514]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.098800]  ? generic_perform_write+0x6a0/0x6a0
[  389.103563]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.109106]  ? check_preemption_disabled+0x48/0x280
[  389.114133]  filemap_fault+0x1595/0x25f0
[  389.118214]  ? __lock_page_or_retry+0xa00/0xa00
[  389.122891]  ? mark_held_locks+0x130/0x130
[  389.127136]  ? filemap_map_pages+0xd6b/0x1a20
[  389.131634]  ? lock_downgrade+0x900/0x900
[  389.135812]  ? check_preemption_disabled+0x48/0x280
[  389.140844]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  389.145775]  ? kasan_check_read+0x11/0x20
[  389.149921]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.155213]  ? rcu_softirq_qs+0x20/0x20
[  389.159232]  ? filemap_map_pages+0xd92/0x1a20
[  389.163751]  ? find_get_entries_tag+0x1400/0x1400
[  389.168603]  ? debug_object_destroy+0x2b0/0x2b0
[  389.173288]  ? lock_pi_update_atomic+0x150/0x150
[  389.178060]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.183609]  ? lock_acquire+0x1ed/0x520
[  389.187583]  ? ext4_filemap_fault+0x7a/0xad
[  389.191912]  ? lock_release+0xa00/0xa00
[  389.195887]  ? perf_trace_sched_process_exec+0x860/0x860
[  389.201367]  ? print_usage_bug+0xc0/0xc0
[  389.205463]  ? print_usage_bug+0xc0/0xc0
[  389.209539]  ? down_read+0x8d/0x120
[  389.213164]  ? ext4_filemap_fault+0x7a/0xad
[  389.217508]  ? __down_interruptible+0x700/0x700
[  389.222189]  ext4_filemap_fault+0x82/0xad
[  389.226359]  __do_fault+0x100/0x6b0
[  389.229993]  ? pmd_devmap_trans_unstable+0x220/0x220
[  389.235115]  ? mark_held_locks+0x130/0x130
[  389.239350]  ? mark_held_locks+0x130/0x130
[  389.243615]  ? debug_smp_processor_id+0x1c/0x20
[  389.248299]  ? perf_trace_lock+0x14d/0x7a0
[  389.252544]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.258086]  __handle_mm_fault+0x3ea0/0x5be0
[  389.262504]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  389.267348]  ? lock_is_held_type+0x210/0x210
[  389.271761]  ? ksys_dup3+0x680/0x680
[  389.275507]  ? zap_class+0x640/0x640
[  389.279221]  ? zap_class+0x640/0x640
[  389.282938]  ? __x64_sys_futex+0x53e/0x6a0
[  389.287178]  ? find_held_lock+0x36/0x1c0
[  389.291276]  ? handle_mm_fault+0x42a/0xc70
[  389.295528]  ? lock_downgrade+0x900/0x900
[  389.299677]  ? check_preemption_disabled+0x48/0x280
[  389.304717]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  389.309666]  ? kasan_check_read+0x11/0x20
[  389.313831]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.319108]  ? rcu_softirq_qs+0x20/0x20
[  389.323086]  ? trace_hardirqs_off_caller+0x310/0x310
[  389.328193]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.333732]  ? check_preemption_disabled+0x48/0x280
[  389.338755]  handle_mm_fault+0x54f/0xc70
[  389.342831]  ? __handle_mm_fault+0x5be0/0x5be0
[  389.347422]  ? find_vma+0x34/0x190
[  389.350969]  __do_page_fault+0x5e8/0xe60
[  389.355041]  ? trace_hardirqs_off+0xb8/0x310
[  389.359463]  do_page_fault+0xf2/0x7e0
[  389.363269]  ? vmalloc_sync_all+0x30/0x30
[  389.367423]  ? error_entry+0x70/0xd0
[  389.371159]  ? trace_hardirqs_off_caller+0xbb/0x310
[  389.376176]  ? trace_hardirqs_on_caller+0xc0/0x310
[  389.381111]  ? syscall_return_slowpath+0x5e0/0x5e0
[  389.386059]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  389.390936]  ? trace_hardirqs_on_caller+0x310/0x310
[  389.395967]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  389.401433]  ? prepare_exit_to_usermode+0x291/0x3b0
[  389.406454]  ? page_fault+0x8/0x30
[  389.410007]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  389.414855]  ? page_fault+0x8/0x30
[  389.418398]  page_fault+0x1e/0x30
[  389.421853] RIP: 0033:0x40f9c0
[  389.425072] Code: Bad RIP value.
[  389.428438] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  389.433814] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  389.441082] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  389.448357] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  389.455630] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  389.462900] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  389.470193] warn_alloc_show_mem: 1 callbacks suppressed
[  389.470204] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  389.470206] Mem-Info:
[  389.470234] active_anon:54833 inactive_anon:712 isolated_anon:0
[  389.470234]  active_file:11 inactive_file:12 isolated_file:0
[  389.470234]  unevictable:0 dirty:0 writeback:0 unstable:0
[  389.470234]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  389.470234]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  389.470234]  free:13768 free_pcp:742 free_cma:0
[  389.475673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  389.482432] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  389.484832] Call Trace:
[  389.517698] 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
[  389.527057]  dump_stack+0x244/0x39d
[  389.554606] lowmem_reserve[]: 0 2818 6321 6321
[  389.557208]  ? dump_stack_print_info.cold.1+0x20/0x20
[  389.583303] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  389.586937]  warn_alloc.cold.116+0xb7/0x1bd
[  389.591491] lowmem_reserve[]: 0 0 3503 3503
[  389.596675]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  389.624418] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  389.628743]  ? lock_downgrade+0x900/0x900
[  389.633035] lowmem_reserve[]: 0 0 0 0
[  389.637879]  ? trace_hardirqs_off+0xb8/0x310
[  389.667215] 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
[  389.671372]  ? trace_hardirqs_off+0xb8/0x310
[  389.675140] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  389.679549]  __alloc_pages_slowpath+0x26e8/0x2e10
[  389.693040] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  389.697481]  ? warn_alloc+0x120/0x120
[  389.713133] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  389.717967]  ? print_usage_bug+0xc0/0xc0
[  389.733309] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  389.737100]  ? warn_alloc+0x120/0x120
[  389.745911] 782 total pagecache pages
[  389.749967]  ? warn_alloc+0x120/0x120
[  389.758521] 0 pages in swap cache
[  389.762340]  ? print_usage_bug+0xc0/0xc0
[  389.766113] Swap cache stats: add 0, delete 0, find 0/0
[  389.769902]  ? print_usage_bug+0xc0/0xc0
[  389.773332] Free swap  = 0kB
[  389.777383]  ? __lock_acquire+0x62f/0x4c20
[  389.782719] Total swap = 0kB
[  389.786772]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.789774] 1965979 pages RAM
[  389.794009]  ? should_fail+0x22d/0xd01
[  389.797005] 0 pages HighMem/MovableOnly
[  389.802540]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  389.805617] 342853 pages reserved
[  389.809491]  ? __lock_acquire+0x62f/0x4c20
[  389.813439] 0 pages cma reserved
[  389.818569]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  389.822060] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  389.826222]  ? __lock_acquire+0x62f/0x4c20
[  389.826237]  ? should_fail+0x22d/0xd01
[  389.829709] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  389.834691]  ? find_held_lock+0x36/0x1c0
[  389.841161] syz-fuzzer cpuset=/ mems_allowed=0
[  389.845385]  ? mark_held_locks+0x130/0x130
[  389.872357]  ? mark_held_locks+0x130/0x130
[  389.876589]  ? zap_class+0x640/0x640
[  389.880300]  ? zap_class+0x640/0x640
[  389.884020]  ? print_usage_bug+0xc0/0xc0
[  389.888100]  ? do_raw_spin_unlock+0xa7/0x330
[  389.892510]  ? zap_class+0x640/0x640
[  389.896219]  ? print_usage_bug+0xc0/0xc0
[  389.900278]  ? wq_watchdog_touch+0x9c/0xfe
[  389.904511]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.910048]  ? check_preemption_disabled+0x48/0x280
[  389.915074]  ? __lock_is_held+0xb5/0x140
[  389.919135]  __alloc_pages_nodemask+0xa80/0xde0
[  389.923795]  ? zap_class+0x640/0x640
[  389.927527]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  389.932544]  ? find_held_lock+0x36/0x1c0
[  389.936608]  ? ____cache_alloc_node+0x1c7/0x1e0
[  389.941274]  ? lock_downgrade+0x900/0x900
[  389.945422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.951006]  cache_grow_begin+0xa5/0x8c0
[  389.955080]  ? do_raw_spin_unlock+0xa7/0x330
[  389.959489]  fallback_alloc+0x204/0x2e0
[  389.963465]  ____cache_alloc_node+0x1c7/0x1e0
[  389.967965]  kmem_cache_alloc_node+0xe3/0x730
[  389.972467]  ? ipv6_get_ifaddr+0x42e/0x620
[  389.976706]  __alloc_skb+0x119/0x770
[  389.980415]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.985689]  ? netdev_alloc_frag+0x1f0/0x1f0
[  389.990093]  ? lock_downgrade+0x900/0x900
[  389.994259]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.999816]  ? refcount_sub_and_test_checked+0x203/0x310
[  390.005263]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  390.010736]  ? addrconf_rs_timer+0x690/0x690
[  390.015169]  ndisc_alloc_skb+0x144/0x340
[  390.019258]  ndisc_send_rs+0x331/0x6e0
[  390.023153]  addrconf_rs_timer+0x314/0x690
[  390.027409]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.031668]  call_timer_fn+0x272/0x920
[  390.035578]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.039846]  ? process_timeout+0x40/0x40
[  390.043926]  ? __run_timers+0x7da/0xc70
[  390.047895]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.052381]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.056866]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.061096]  ? lockdep_hardirqs_on+0x296/0x5b0
[  390.065681]  ? trace_hardirqs_on+0xbd/0x310
[  390.070038]  ? kasan_check_read+0x11/0x20
[  390.074201]  ? __run_timers+0x7da/0xc70
[  390.078179]  ? trace_hardirqs_off_caller+0x310/0x310
[  390.083292]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.087527]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.091756]  __run_timers+0x7e5/0xc70
[  390.095565]  ? timer_fixup_init+0x70/0x70
[  390.099705]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.104213]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.108704]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  390.113284]  ? trace_hardirqs_on+0xbd/0x310
[  390.117598]  ? kasan_check_read+0x11/0x20
[  390.121751]  ? finish_task_switch+0x1f4/0x910
[  390.126262]  ? trace_hardirqs_off_caller+0x310/0x310
[  390.131368]  ? compat_start_thread+0x80/0x80
[  390.135791]  ? pvclock_read_flags+0x160/0x160
[  390.140285]  ? __switch_to_asm+0x34/0x70
[  390.144344]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.149891]  ? check_preemption_disabled+0x48/0x280
[  390.154913]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  390.160446]  ? rcu_pm_notify+0xc0/0xc0
[  390.164329]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.169865]  ? check_preemption_disabled+0x48/0x280
[  390.174895]  run_timer_softirq+0x52/0xb0
[  390.178951]  ? rcu_read_lock_sched_held+0x14f/0x180
[  390.183967]  __do_softirq+0x308/0xb7e
[  390.187787]  ? retint_kernel+0x2d/0x2d
[  390.191690]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  390.196786]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  390.202230]  ? trace_hardirqs_on+0x310/0x310
[  390.206669]  ? schedule+0x108/0x460
[  390.210320]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  390.215081]  ? trace_hardirqs_off+0xb8/0x310
[  390.219484]  ? smpboot_thread_fn+0x68b/0xa00
[  390.223898]  ? trace_hardirqs_on+0x310/0x310
[  390.228300]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.233831]  ? check_preemption_disabled+0x48/0x280
[  390.238842]  ? takeover_tasklets+0xa90/0xa90
[  390.243248]  run_ksoftirqd+0x5e/0x100
[  390.247051]  smpboot_thread_fn+0x68b/0xa00
[  390.251290]  ? sort_range+0x30/0x30
[  390.254911]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  390.260031]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.265611]  ? __kthread_parkme+0xfb/0x1a0
[  390.269856]  ? sort_range+0x30/0x30
[  390.273493]  kthread+0x35a/0x440
[  390.276857]  ? kthread_stop+0x900/0x900
[  390.280830]  ret_from_fork+0x3a/0x50
[  390.284584] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  390.284649] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  390.291510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  390.291515] Call Trace:
[  390.291521]  <IRQ>
[  390.291536]  dump_stack+0x244/0x39d
[  390.291553]  ? dump_stack_print_info.cold.1+0x20/0x20
[  390.298098] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  390.307416]  warn_alloc.cold.116+0xb7/0x1bd
[  390.309972] ksoftirqd/0 cpuset=/ mems_allowed=0
[  390.312121]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  390.345039]  ? lock_downgrade+0x900/0x900
[  390.349212]  ? trace_hardirqs_off+0xb8/0x310
[  390.353630]  ? trace_hardirqs_off+0xb8/0x310
[  390.358047]  __alloc_pages_slowpath+0x26e8/0x2e10
[  390.362931]  ? warn_alloc+0x120/0x120
[  390.366744]  ? print_usage_bug+0xc0/0xc0
[  390.370808]  ? warn_alloc+0x120/0x120
[  390.374608]  ? warn_alloc+0x120/0x120
[  390.378409]  ? print_usage_bug+0xc0/0xc0
[  390.382471]  ? kvm_clock_read+0x18/0x30
[  390.386449]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  390.391465]  ? print_usage_bug+0xc0/0xc0
[  390.395540]  ? __lock_acquire+0x62f/0x4c20
[  390.399782]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.405317]  ? should_fail+0x22d/0xd01
[  390.409208]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.414486]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  390.419586]  ? __lock_acquire+0x62f/0x4c20
[  390.423818]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  390.428933]  ? __lock_acquire+0x62f/0x4c20
[  390.433165]  ? should_fail+0x22d/0xd01
[  390.437094]  ? rcu_irq_exit+0x1a2/0x390
[  390.441090]  ? mark_held_locks+0x130/0x130
[  390.445342]  ? mark_held_locks+0x130/0x130
[  390.449582]  ? mark_held_locks+0xc7/0x130
[  390.453727]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  390.458738]  ? zap_class+0x640/0x640
[  390.462463]  ? print_usage_bug+0xc0/0xc0
[  390.466523]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.472066]  ? check_preemption_disabled+0x48/0x280
[  390.477102]  ? __lock_is_held+0xb5/0x140
[  390.481191]  __alloc_pages_nodemask+0xa80/0xde0
[  390.485893]  ? zap_class+0x640/0x640
[  390.489611]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  390.494635]  ? find_held_lock+0x36/0x1c0
[  390.498694]  ? ____cache_alloc_node+0x1c7/0x1e0
[  390.503366]  ? lock_downgrade+0x900/0x900
[  390.507530]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.513104]  cache_grow_begin+0xa5/0x8c0
[  390.517155]  ? do_raw_spin_unlock+0xa7/0x330
[  390.521600]  fallback_alloc+0x204/0x2e0
[  390.525585]  ____cache_alloc_node+0x1c7/0x1e0
[  390.530075]  kmem_cache_alloc_node+0xe3/0x730
[  390.534563]  ? ipv6_get_ifaddr+0x42e/0x620
[  390.538804]  __alloc_skb+0x119/0x770
[  390.542512]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.547792]  ? netdev_alloc_frag+0x1f0/0x1f0
[  390.552191]  ? lock_downgrade+0x900/0x900
[  390.556335]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.561906]  ? refcount_sub_and_test_checked+0x203/0x310
[  390.567363]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  390.572831]  ? addrconf_rs_timer+0x690/0x690
[  390.577243]  ndisc_alloc_skb+0x144/0x340
[  390.581302]  ndisc_send_rs+0x331/0x6e0
[  390.585202]  addrconf_rs_timer+0x314/0x690
[  390.589434]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.593685]  call_timer_fn+0x272/0x920
[  390.597564]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.601793]  ? process_timeout+0x40/0x40
[  390.605884]  ? mark_held_locks+0xc7/0x130
[  390.610028]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.614515]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.619071]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.623317]  ? lockdep_hardirqs_on+0x296/0x5b0
[  390.627897]  ? trace_hardirqs_on+0xbd/0x310
[  390.632213]  ? kasan_check_read+0x11/0x20
[  390.636352]  ? __run_timers+0x7da/0xc70
[  390.640324]  ? trace_hardirqs_off_caller+0x310/0x310
[  390.645444]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.649677]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.653902]  __run_timers+0x7e5/0xc70
[  390.657701]  ? timer_fixup_init+0x70/0x70
[  390.661844]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  390.666872]  ? zap_class+0x640/0x640
[  390.670588]  ? print_usage_bug+0xc0/0xc0
[  390.674647]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  390.679837]  ? find_held_lock+0x36/0x1c0
[  390.683897]  ? zap_class+0x640/0x640
[  390.687630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.693181]  ? check_preemption_disabled+0x48/0x280
[  390.698199]  ? __lock_is_held+0xb5/0x140
[  390.702261]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.707799]  ? check_preemption_disabled+0x48/0x280
[  390.712853]  run_timer_softirq+0x52/0xb0
[  390.716908]  ? rcu_read_lock_sched_held+0x14f/0x180
[  390.721930]  __do_softirq+0x308/0xb7e
[  390.725727]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  390.730216]  ? lock_downgrade+0x900/0x900
[  390.734360]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  390.739507]  ? pvclock_read_flags+0x160/0x160
[  390.744032]  ? lapic_next_event+0x5a/0x90
[  390.748197]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.753733]  ? kvm_clock_read+0x18/0x30
[  390.757733]  ? kvm_sched_clock_read+0x9/0x20
[  390.762152]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.767707]  ? check_preemption_disabled+0x48/0x280
[  390.772736]  irq_exit+0x17f/0x1c0
[  390.776212]  smp_apic_timer_interrupt+0x1cb/0x760
[  390.781055]  ? smp_call_function_single_interrupt+0x159/0x650
[  390.786942]  ? smp_call_function_single_interrupt+0x650/0x650
[  390.792845]  ? interrupt_entry+0xb5/0xc0
[  390.796912]  ? trace_hardirqs_off_caller+0xbb/0x310
[  390.802401]  ? trace_hardirqs_off_caller+0xbb/0x310
[  390.807425]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  390.812268]  ? trace_hardirqs_on_caller+0x310/0x310
[  390.817282]  ? trace_hardirqs_on_caller+0x310/0x310
[  390.822391]  ? task_prio+0x50/0x50
[  390.825928]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.831472]  ? check_preemption_disabled+0x48/0x280
[  390.836489]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  390.841333]  apic_timer_interrupt+0xf/0x20
[  390.845635]  </IRQ>
[  390.847868] RIP: 0010:dump_stack+0x358/0x39d
[  390.852268] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  390.871160] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  390.878861] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  390.886131] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  390.893408] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  390.900682] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  390.907976] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  390.915257]  ? dump_stack+0x34f/0x39d
[  390.919062]  ? dump_stack_print_info.cold.1+0x20/0x20
[  390.924248]  ? mark_held_locks+0x130/0x130
[  390.928481]  ? mark_held_locks+0x130/0x130
[  390.932785]  dump_header+0x27b/0xf72
[  390.936512]  ? pagefault_out_of_memory+0x197/0x197
[  390.941445]  ? __lock_acquire+0x62f/0x4c20
[  390.945675]  ? percpu_ref_get_many+0x240/0x240
[  390.950254]  ? print_usage_bug+0xc0/0xc0
[  390.954328]  ? zap_class+0x640/0x640
[  390.958064]  ? print_usage_bug+0xc0/0xc0
[  390.962114]  ? print_usage_bug+0xc0/0xc0
[  390.966193]  ? zap_class+0x640/0x640
[  390.969913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.975466]  ? find_held_lock+0x36/0x1c0
[  390.979534]  ? mark_held_locks+0xc7/0x130
[  390.983692]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  390.988833]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  390.993931]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  390.998508]  ? trace_hardirqs_on+0xbd/0x310
[  391.002824]  ? kasan_check_read+0x11/0x20
[  391.006984]  ? ___ratelimit+0x3b4/0x672
[  391.010974]  ? trace_hardirqs_off_caller+0x310/0x310
[  391.016076]  ? trace_hardirqs_on+0x310/0x310
[  391.020481]  ? lock_downgrade+0x900/0x900
[  391.024645]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  391.029756]  ? ___ratelimit+0x3b9/0x672
[  391.033730]  ? idr_get_free+0xf70/0xf70
[  391.037695]  ? find_held_lock+0x36/0x1c0
[  391.041754]  oom_kill_process.cold.27+0x10/0x903
[  391.046509]  ? zap_class+0x640/0x640
[  391.050245]  ? check_preemption_disabled+0x48/0x280
[  391.055342]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  391.060276]  ? kasan_check_read+0x11/0x20
[  391.064417]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.069689]  ? oom_evaluate_task+0x540/0x540
[  391.074097]  ? find_held_lock+0x36/0x1c0
[  391.078161]  ? out_of_memory+0x974/0x1430
[  391.082325]  ? lock_downgrade+0x900/0x900
[  391.086504]  ? check_preemption_disabled+0x48/0x280
[  391.091545]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  391.096470]  ? kasan_check_read+0x11/0x20
[  391.100629]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.105896]  ? rcu_softirq_qs+0x20/0x20
[  391.109868]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.115407]  ? oom_evaluate_task+0x302/0x540
[  391.119815]  out_of_memory+0xa84/0x1430
[  391.123811]  ? oom_killer_disable+0x3a0/0x3a0
[  391.128332]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  391.133308]  ? __ww_mutex_check_waiters+0x160/0x160
[  391.138331]  __alloc_pages_slowpath+0x2354/0x2e10
[  391.143255]  ? warn_alloc+0x120/0x120
[  391.147052]  ? mark_held_locks+0x130/0x130
[  391.151289]  ? find_get_entry+0xaae/0x1120
[  391.155543]  ? filemap_map_pages+0x1a20/0x1a20
[  391.160128]  ? zap_class+0x640/0x640
[  391.163847]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.169382]  ? check_preemption_disabled+0x48/0x280
[  391.174397]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.179943]  ? should_fail+0x22d/0xd01
[  391.183828]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  391.188943]  ? zap_class+0x640/0x640
[  391.192671]  ? __lock_is_held+0xb5/0x140
[  391.196733]  ? mark_held_locks+0x130/0x130
[  391.200967]  ? lock_release+0xa00/0xa00
[  391.204959]  ? perf_trace_sched_process_exec+0x860/0x860
[  391.210437]  ? xa_load+0x2ba/0x460
[  391.213991]  ? lock_downgrade+0x900/0x900
[  391.218149]  ? __might_sleep+0x95/0x190
[  391.222140]  __alloc_pages_nodemask+0xa80/0xde0
[  391.226827]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  391.231843]  ? __page_cache_alloc+0x191/0x5c0
[  391.236331]  ? xa_load+0x2e1/0x460
[  391.239872]  ? xa_clear_mark+0x40/0x40
[  391.243793]  ? zap_class+0x640/0x640
[  391.247506]  ? zap_class+0x640/0x640
[  391.251230]  ? zap_class+0x640/0x640
[  391.254937]  ? __do_page_cache_readahead+0x663/0x810
[  391.260047]  ? find_held_lock+0x36/0x1c0
[  391.264108]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  391.269644]  alloc_pages_current+0x173/0x350
[  391.274049]  __page_cache_alloc+0x38c/0x5c0
[  391.278379]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  391.283318]  ? kasan_check_read+0x11/0x20
[  391.287470]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.292760]  ? generic_perform_write+0x6a0/0x6a0
[  391.297519]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.303063]  ? check_preemption_disabled+0x48/0x280
[  391.308097]  filemap_fault+0x1595/0x25f0
[  391.312166]  ? __lock_page_or_retry+0xa00/0xa00
[  391.316838]  ? mark_held_locks+0x130/0x130
[  391.321074]  ? filemap_map_pages+0xd6b/0x1a20
[  391.325562]  ? lock_downgrade+0x900/0x900
[  391.329717]  ? check_preemption_disabled+0x48/0x280
[  391.334739]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  391.339681]  ? kasan_check_read+0x11/0x20
[  391.343822]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.349122]  ? rcu_softirq_qs+0x20/0x20
[  391.353102]  ? filemap_map_pages+0xd92/0x1a20
[  391.357630]  ? find_get_entries_tag+0x1400/0x1400
[  391.362507]  ? debug_object_destroy+0x2b0/0x2b0
[  391.367193]  ? lock_pi_update_atomic+0x150/0x150
[  391.371960]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.377507]  ? lock_acquire+0x1ed/0x520
[  391.381478]  ? ext4_filemap_fault+0x7a/0xad
[  391.385803]  ? lock_release+0xa00/0xa00
[  391.389778]  ? perf_trace_sched_process_exec+0x860/0x860
[  391.395229]  ? print_usage_bug+0xc0/0xc0
[  391.399289]  ? print_usage_bug+0xc0/0xc0
[  391.403372]  ? down_read+0x8d/0x120
[  391.406993]  ? ext4_filemap_fault+0x7a/0xad
[  391.411321]  ? __down_interruptible+0x700/0x700
[  391.416004]  ext4_filemap_fault+0x82/0xad
[  391.420153]  __do_fault+0x100/0x6b0
[  391.423804]  ? pmd_devmap_trans_unstable+0x220/0x220
[  391.428912]  ? mark_held_locks+0x130/0x130
[  391.433171]  ? mark_held_locks+0x130/0x130
[  391.437422]  ? debug_smp_processor_id+0x1c/0x20
[  391.442094]  ? perf_trace_lock+0x14d/0x7a0
[  391.446330]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.451867]  __handle_mm_fault+0x3ea0/0x5be0
[  391.456279]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  391.461118]  ? lock_is_held_type+0x210/0x210
[  391.465554]  ? ksys_dup3+0x680/0x680
[  391.469349]  ? zap_class+0x640/0x640
[  391.473071]  ? zap_class+0x640/0x640
[  391.476784]  ? __x64_sys_futex+0x53e/0x6a0
[  391.481037]  ? find_held_lock+0x36/0x1c0
[  391.485104]  ? handle_mm_fault+0x42a/0xc70
[  391.489335]  ? lock_downgrade+0x900/0x900
[  391.493477]  ? check_preemption_disabled+0x48/0x280
[  391.498490]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  391.503444]  ? kasan_check_read+0x11/0x20
[  391.507588]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.512873]  ? rcu_softirq_qs+0x20/0x20
[  391.516843]  ? trace_hardirqs_off_caller+0x310/0x310
[  391.521959]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.527493]  ? check_preemption_disabled+0x48/0x280
[  391.532509]  handle_mm_fault+0x54f/0xc70
[  391.536568]  ? __handle_mm_fault+0x5be0/0x5be0
[  391.541165]  ? find_vma+0x34/0x190
[  391.544707]  __do_page_fault+0x5e8/0xe60
[  391.548763]  ? trace_hardirqs_off+0xb8/0x310
[  391.553183]  do_page_fault+0xf2/0x7e0
[  391.556982]  ? vmalloc_sync_all+0x30/0x30
[  391.561146]  ? error_entry+0x70/0xd0
[  391.564865]  ? trace_hardirqs_off_caller+0xbb/0x310
[  391.569876]  ? trace_hardirqs_on_caller+0xc0/0x310
[  391.574805]  ? syscall_return_slowpath+0x5e0/0x5e0
[  391.579727]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.584581]  ? trace_hardirqs_on_caller+0x310/0x310
[  391.589594]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  391.595079]  ? prepare_exit_to_usermode+0x291/0x3b0
[  391.600118]  ? page_fault+0x8/0x30
[  391.603652]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.608494]  ? page_fault+0x8/0x30
[  391.612059]  page_fault+0x1e/0x30
[  391.615508] RIP: 0033:0x40f9c0
[  391.618739] Code: Bad RIP value.
[  391.622113] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  391.627473] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  391.634738] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  391.642008] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  391.649270] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  391.656533] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  391.663821] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  391.663826] warn_alloc_show_mem: 1 callbacks suppressed
[  391.663833] Mem-Info:
[  391.670798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  391.670806] Call Trace:
[  391.676176] active_anon:54833 inactive_anon:712 isolated_anon:0
[  391.676176]  active_file:11 inactive_file:12 isolated_file:0
[  391.676176]  unevictable:0 dirty:0 writeback:0 unstable:0
[  391.676176]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  391.676176]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  391.676176]  free:13768 free_pcp:742 free_cma:0
[  391.678560]  dump_stack+0x244/0x39d
[  391.687933] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  391.690517]  ? dump_stack_print_info.cold.1+0x20/0x20
[  391.723378] 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
[  391.727023]  warn_alloc.cold.116+0xb7/0x1bd
[  391.754595] lowmem_reserve[]: 0 2818 6321 6321
[  391.759793]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  391.785885] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  391.790213]  ? lock_downgrade+0x900/0x900
[  391.794783] lowmem_reserve[]: 0 0 3503 3503
[  391.799635]  ? trace_hardirqs_off+0xb8/0x310
[  391.827375] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  391.831532]  ? trace_hardirqs_off+0xb8/0x310
[  391.835830] lowmem_reserve[]: 0 0 0 0
[  391.840291]  __alloc_pages_slowpath+0x26e8/0x2e10
[  391.869406] 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
[  391.873840]  ? warn_alloc+0x120/0x120
[  391.877600] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  391.882444]  ? print_usage_bug+0xc0/0xc0
[  391.895953] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  391.899757]  ? warn_alloc+0x120/0x120
[  391.915450] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  391.919506]  ? warn_alloc+0x120/0x120
[  391.934841] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  391.934850] 782 total pagecache pages
[  391.938670]  ? print_usage_bug+0xc0/0xc0
[  391.947495] 0 pages in swap cache
[  391.951295]  ? print_usage_bug+0xc0/0xc0
[  391.959858] Swap cache stats: add 0, delete 0, find 0/0
[  391.963659]  ? __lock_acquire+0x62f/0x4c20
[  391.967705] Free swap  = 0kB
[  391.971165]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.975208] Total swap = 0kB
[  391.980574]  ? should_fail+0x22d/0xd01
[  391.984796] 1965979 pages RAM
[  391.987815]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  391.993335] 0 pages HighMem/MovableOnly
[  391.996355]  ? __lock_acquire+0x62f/0x4c20
[  392.000230] 342853 pages reserved
[  392.003361]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  392.008465] 0 pages cma reserved
[  392.012444]  ? __lock_acquire+0x62f/0x4c20
[  392.016730] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  392.020122]  ? should_fail+0x22d/0xd01
[  392.020137]  ? find_held_lock+0x36/0x1c0
[  392.020159]  ? mark_held_locks+0x130/0x130
[  392.025307] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  392.028626]  ? mark_held_locks+0x130/0x130
[  392.032849] syz-fuzzer cpuset=/ mems_allowed=0
[  392.039369]  ? zap_class+0x640/0x640
[  392.074294]  ? zap_class+0x640/0x640
[  392.078040]  ? print_usage_bug+0xc0/0xc0
[  392.082110]  ? do_raw_spin_unlock+0xa7/0x330
[  392.086527]  ? zap_class+0x640/0x640
[  392.090248]  ? print_usage_bug+0xc0/0xc0
[  392.094323]  ? wq_watchdog_touch+0x9c/0xfe
[  392.098573]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.104132]  ? check_preemption_disabled+0x48/0x280
[  392.109166]  ? __lock_is_held+0xb5/0x140
[  392.113246]  __alloc_pages_nodemask+0xa80/0xde0
[  392.117927]  ? zap_class+0x640/0x640
[  392.121658]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  392.126694]  ? find_held_lock+0x36/0x1c0
[  392.130779]  ? ____cache_alloc_node+0x1c7/0x1e0
[  392.135459]  ? lock_downgrade+0x900/0x900
[  392.139625]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.145180]  cache_grow_begin+0xa5/0x8c0
[  392.149250]  ? do_raw_spin_unlock+0xa7/0x330
[  392.153684]  fallback_alloc+0x204/0x2e0
[  392.157673]  ____cache_alloc_node+0x1c7/0x1e0
[  392.162183]  kmem_cache_alloc_node+0xe3/0x730
[  392.166688]  ? ipv6_get_ifaddr+0x42e/0x620
[  392.170942]  __alloc_skb+0x119/0x770
[  392.174669]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.179957]  ? netdev_alloc_frag+0x1f0/0x1f0
[  392.184380]  ? lock_downgrade+0x900/0x900
[  392.188559]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.194108]  ? refcount_sub_and_test_checked+0x203/0x310
[  392.199572]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  392.205047]  ? addrconf_rs_timer+0x690/0x690
[  392.209477]  ndisc_alloc_skb+0x144/0x340
[  392.213566]  ndisc_send_rs+0x331/0x6e0
[  392.217467]  addrconf_rs_timer+0x314/0x690
[  392.221717]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.225972]  call_timer_fn+0x272/0x920
[  392.229890]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.234140]  ? process_timeout+0x40/0x40
[  392.238216]  ? __run_timers+0x7da/0xc70
[  392.242202]  ? _raw_spin_unlock_irq+0x27/0x80
[  392.246706]  ? _raw_spin_unlock_irq+0x27/0x80
[  392.251207]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.255451]  ? lockdep_hardirqs_on+0x296/0x5b0
[  392.260055]  ? trace_hardirqs_on+0xbd/0x310
[  392.264389]  ? kasan_check_read+0x11/0x20
[  392.268543]  ? __run_timers+0x7da/0xc70
[  392.272529]  ? trace_hardirqs_off_caller+0x310/0x310
[  392.277644]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.281897]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.286140]  __run_timers+0x7e5/0xc70
[  392.289958]  ? timer_fixup_init+0x70/0x70
[  392.294117]  ? _raw_spin_unlock_irq+0x27/0x80
[  392.298620]  ? _raw_spin_unlock_irq+0x27/0x80
[  392.303129]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  392.307722]  ? trace_hardirqs_on+0xbd/0x310
[  392.312056]  ? kasan_check_read+0x11/0x20
[  392.316218]  ? finish_task_switch+0x1f4/0x910
[  392.320726]  ? trace_hardirqs_off_caller+0x310/0x310
[  392.325841]  ? compat_start_thread+0x80/0x80
[  392.330330]  ? pvclock_read_flags+0x160/0x160
[  392.334874]  ? __switch_to_asm+0x34/0x70
[  392.338948]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.344504]  ? check_preemption_disabled+0x48/0x280
[  392.349541]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  392.355094]  ? rcu_pm_notify+0xc0/0xc0
[  392.358994]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.364559]  ? check_preemption_disabled+0x48/0x280
[  392.369589]  run_timer_softirq+0x52/0xb0
[  392.373659]  ? rcu_read_lock_sched_held+0x14f/0x180
[  392.378688]  __do_softirq+0x308/0xb7e
[  392.382500]  ? retint_kernel+0x2d/0x2d
[  392.386414]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  392.391540]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  392.397040]  ? trace_hardirqs_on+0x310/0x310
[  392.401478]  ? schedule+0x108/0x460
[  392.405119]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  392.409893]  ? trace_hardirqs_off+0xb8/0x310
[  392.414312]  ? smpboot_thread_fn+0x68b/0xa00
[  392.418729]  ? trace_hardirqs_on+0x310/0x310
[  392.423149]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.428695]  ? check_preemption_disabled+0x48/0x280
[  392.433730]  ? takeover_tasklets+0xa90/0xa90
[  392.438149]  run_ksoftirqd+0x5e/0x100
[  392.441958]  smpboot_thread_fn+0x68b/0xa00
[  392.446230]  ? sort_range+0x30/0x30
[  392.449881]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  392.455012]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.460562]  ? __kthread_parkme+0xfb/0x1a0
[  392.464807]  ? sort_range+0x30/0x30
[  392.468443]  kthread+0x35a/0x440
[  392.471822]  ? kthread_stop+0x900/0x900
[  392.475811]  ret_from_fork+0x3a/0x50
[  392.479598] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  392.479699] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  392.486570] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  392.486579] Call Trace:
[  392.493156] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  392.502420]  <IRQ>
[  392.505017] ksoftirqd/0 cpuset=/ mems_allowed=0
[  392.515345]  dump_stack+0x244/0x39d
[  392.525783]  ? dump_stack_print_info.cold.1+0x20/0x20
[  392.530993]  warn_alloc.cold.116+0xb7/0x1bd
[  392.535347]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  392.540202]  ? lock_downgrade+0x900/0x900
[  392.544368]  ? trace_hardirqs_off+0xb8/0x310
[  392.548799]  ? trace_hardirqs_off+0xb8/0x310
[  392.553232]  __alloc_pages_slowpath+0x26e8/0x2e10
[  392.558113]  ? warn_alloc+0x120/0x120
[  392.561925]  ? print_usage_bug+0xc0/0xc0
[  392.566012]  ? warn_alloc+0x120/0x120
[  392.569829]  ? warn_alloc+0x120/0x120
[  392.573640]  ? print_usage_bug+0xc0/0xc0
[  392.577717]  ? print_usage_bug+0xc0/0xc0
[  392.581794]  ? __lock_acquire+0x62f/0x4c20
[  392.586054]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.591604]  ? should_fail+0x22d/0xd01
[  392.595505]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  392.600620]  ? __lock_acquire+0x62f/0x4c20
[  392.604868]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  392.609979]  ? __lock_acquire+0x62f/0x4c20
[  392.614240]  ? should_fail+0x22d/0xd01
[  392.618140]  ? find_held_lock+0x36/0x1c0
[  392.622223]  ? mark_held_locks+0x130/0x130
[  392.626472]  ? mark_held_locks+0x130/0x130
[  392.630716]  ? zap_class+0x640/0x640
[  392.634443]  ? zap_class+0x640/0x640
[  392.638173]  ? print_usage_bug+0xc0/0xc0
[  392.642242]  ? do_raw_spin_unlock+0xa7/0x330
[  392.646659]  ? zap_class+0x640/0x640
[  392.650381]  ? print_usage_bug+0xc0/0xc0
[  392.654488]  ? wq_watchdog_touch+0x9c/0xfe
[  392.658735]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.664289]  ? check_preemption_disabled+0x48/0x280
[  392.669326]  ? __lock_is_held+0xb5/0x140
[  392.673406]  __alloc_pages_nodemask+0xa80/0xde0
[  392.678096]  ? zap_class+0x640/0x640
[  392.681824]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  392.686864]  ? find_held_lock+0x36/0x1c0
[  392.690944]  ? ____cache_alloc_node+0x1c7/0x1e0
[  392.695623]  ? lock_downgrade+0x900/0x900
[  392.699838]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.705391]  cache_grow_begin+0xa5/0x8c0
[  392.709460]  ? do_raw_spin_unlock+0xa7/0x330
[  392.713900]  fallback_alloc+0x204/0x2e0
[  392.717891]  ____cache_alloc_node+0x1c7/0x1e0
[  392.722402]  kmem_cache_alloc_node+0xe3/0x730
[  392.726918]  ? ipv6_get_ifaddr+0x42e/0x620
[  392.731173]  __alloc_skb+0x119/0x770
[  392.734893]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.740186]  ? netdev_alloc_frag+0x1f0/0x1f0
[  392.744606]  ? lock_downgrade+0x900/0x900
[  392.748777]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.754328]  ? refcount_sub_and_test_checked+0x203/0x310
[  392.759797]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  392.765256]  ? addrconf_rs_timer+0x690/0x690
[  392.769683]  ndisc_alloc_skb+0x144/0x340
[  392.773761]  ndisc_send_rs+0x331/0x6e0
[  392.777671]  addrconf_rs_timer+0x314/0x690
[  392.781921]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.786175]  call_timer_fn+0x272/0x920
[  392.790072]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.794315]  ? process_timeout+0x40/0x40
[  392.798862]  ? mark_held_locks+0xc7/0x130
[  392.803042]  ? _raw_spin_unlock_irq+0x27/0x80
[  392.807550]  ? _raw_spin_unlock_irq+0x27/0x80
[  392.812069]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.816314]  ? lockdep_hardirqs_on+0x296/0x5b0
[  392.820906]  ? trace_hardirqs_on+0xbd/0x310
[  392.825246]  ? kasan_check_read+0x11/0x20
[  392.829402]  ? __run_timers+0x7da/0xc70
[  392.833391]  ? trace_hardirqs_off_caller+0x310/0x310
[  392.838506]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.842764]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.847028]  __run_timers+0x7e5/0xc70
[  392.850850]  ? timer_fixup_init+0x70/0x70
[  392.855028]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  392.860064]  ? zap_class+0x640/0x640
[  392.863796]  ? print_usage_bug+0xc0/0xc0
[  392.867872]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  392.873079]  ? find_held_lock+0x36/0x1c0
[  392.877243]  ? zap_class+0x640/0x640
[  392.880969]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.886533]  ? check_preemption_disabled+0x48/0x280
[  392.891596]  ? __lock_is_held+0xb5/0x140
[  392.895682]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.901226]  ? check_preemption_disabled+0x48/0x280
[  392.906255]  run_timer_softirq+0x52/0xb0
[  392.910325]  ? rcu_read_lock_sched_held+0x14f/0x180
[  392.915349]  __do_softirq+0x308/0xb7e
[  392.919163]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  392.923665]  ? lock_downgrade+0x900/0x900
[  392.927830]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  392.932949]  ? pvclock_read_flags+0x160/0x160
[  392.937457]  ? lapic_next_event+0x5a/0x90
[  392.941625]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.947180]  ? kvm_clock_read+0x18/0x30
[  392.951165]  ? kvm_sched_clock_read+0x9/0x20
[  392.955583]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.961135]  ? check_preemption_disabled+0x48/0x280
[  392.966172]  irq_exit+0x17f/0x1c0
[  392.969638]  smp_apic_timer_interrupt+0x1cb/0x760
[  392.974491]  ? smp_call_function_single_interrupt+0x159/0x650
[  392.980387]  ? smp_call_function_single_interrupt+0x650/0x650
[  392.986281]  ? interrupt_entry+0xb5/0xc0
[  392.990353]  ? trace_hardirqs_off_caller+0xbb/0x310
[  392.995377]  ? trace_hardirqs_off_caller+0xbb/0x310
[  393.000404]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.005273]  ? trace_hardirqs_on_caller+0x310/0x310
[  393.010300]  ? trace_hardirqs_on_caller+0x310/0x310
[  393.015325]  ? task_prio+0x50/0x50
[  393.018875]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.024420]  ? check_preemption_disabled+0x48/0x280
[  393.029452]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.034340]  apic_timer_interrupt+0xf/0x20
[  393.038575]  </IRQ>
[  393.040824] RIP: 0010:dump_stack+0x358/0x39d
[  393.045243] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  393.064149] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  393.071867] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  393.079147] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  393.086423] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  393.093697] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  393.100971] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  393.108283]  ? dump_stack+0x34f/0x39d
[  393.112106]  ? dump_stack_print_info.cold.1+0x20/0x20
[  393.117311]  ? mark_held_locks+0x130/0x130
[  393.121572]  ? mark_held_locks+0x130/0x130
[  393.125819]  dump_header+0x27b/0xf72
[  393.129554]  ? pagefault_out_of_memory+0x197/0x197
[  393.134501]  ? __lock_acquire+0x62f/0x4c20
[  393.138751]  ? percpu_ref_get_many+0x240/0x240
[  393.143354]  ? print_usage_bug+0xc0/0xc0
[  393.147431]  ? zap_class+0x640/0x640
[  393.151157]  ? print_usage_bug+0xc0/0xc0
[  393.155225]  ? print_usage_bug+0xc0/0xc0
[  393.159295]  ? zap_class+0x640/0x640
[  393.163035]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.168590]  ? find_held_lock+0x36/0x1c0
[  393.172678]  ? mark_held_locks+0xc7/0x130
[  393.176837]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  393.181950]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  393.187067]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  393.191662]  ? trace_hardirqs_on+0xbd/0x310
[  393.195993]  ? kasan_check_read+0x11/0x20
[  393.200168]  ? ___ratelimit+0x3b4/0x672
[  393.204156]  ? trace_hardirqs_off_caller+0x310/0x310
[  393.209270]  ? trace_hardirqs_on+0x310/0x310
[  393.213687]  ? lock_downgrade+0x900/0x900
[  393.217849]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  393.222969]  ? ___ratelimit+0x3b9/0x672
[  393.226972]  ? idr_get_free+0xf70/0xf70
[  393.230969]  ? find_held_lock+0x36/0x1c0
[  393.235069]  oom_kill_process.cold.27+0x10/0x903
[  393.239838]  ? zap_class+0x640/0x640
[  393.243560]  ? check_preemption_disabled+0x48/0x280
[  393.248585]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  393.253790]  ? kasan_check_read+0x11/0x20
[  393.257948]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.263238]  ? oom_evaluate_task+0x540/0x540
[  393.267661]  ? find_held_lock+0x36/0x1c0
[  393.271739]  ? out_of_memory+0x974/0x1430
[  393.275905]  ? lock_downgrade+0x900/0x900
[  393.280068]  ? check_preemption_disabled+0x48/0x280
[  393.285102]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  393.290057]  ? kasan_check_read+0x11/0x20
[  393.294217]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.299588]  ? rcu_softirq_qs+0x20/0x20
[  393.303667]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.309210]  ? oom_evaluate_task+0x302/0x540
[  393.313631]  out_of_memory+0xa84/0x1430
[  393.317621]  ? oom_killer_disable+0x3a0/0x3a0
[  393.322130]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  393.327081]  ? __ww_mutex_check_waiters+0x160/0x160
[  393.332124]  __alloc_pages_slowpath+0x2354/0x2e10
[  393.337024]  ? warn_alloc+0x120/0x120
[  393.340837]  ? mark_held_locks+0x130/0x130
[  393.345088]  ? find_get_entry+0xaae/0x1120
[  393.349343]  ? filemap_map_pages+0x1a20/0x1a20
[  393.353939]  ? zap_class+0x640/0x640
[  393.357672]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.363281]  ? check_preemption_disabled+0x48/0x280
[  393.368309]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.373857]  ? should_fail+0x22d/0xd01
[  393.377761]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  393.382879]  ? zap_class+0x640/0x640
[  393.386658]  ? __lock_is_held+0xb5/0x140
[  393.390739]  ? mark_held_locks+0x130/0x130
[  393.394994]  ? lock_release+0xa00/0xa00
[  393.399090]  ? perf_trace_sched_process_exec+0x860/0x860
[  393.404548]  ? xa_load+0x2ba/0x460
[  393.408099]  ? lock_downgrade+0x900/0x900
[  393.412307]  ? __might_sleep+0x95/0x190
[  393.416296]  __alloc_pages_nodemask+0xa80/0xde0
[  393.420994]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  393.426052]  ? __page_cache_alloc+0x191/0x5c0
[  393.430557]  ? xa_load+0x2e1/0x460
[  393.434111]  ? xa_clear_mark+0x40/0x40
[  393.438025]  ? zap_class+0x640/0x640
[  393.441762]  ? zap_class+0x640/0x640
[  393.445490]  ? zap_class+0x640/0x640
[  393.449217]  ? __do_page_cache_readahead+0x663/0x810
[  393.454333]  ? find_held_lock+0x36/0x1c0
[  393.458408]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  393.463975]  alloc_pages_current+0x173/0x350
[  393.468415]  __page_cache_alloc+0x38c/0x5c0
[  393.472742]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  393.477682]  ? kasan_check_read+0x11/0x20
[  393.481837]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.487128]  ? generic_perform_write+0x6a0/0x6a0
[  393.491893]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.497442]  ? check_preemption_disabled+0x48/0x280
[  393.502478]  filemap_fault+0x1595/0x25f0
[  393.506572]  ? __lock_page_or_retry+0xa00/0xa00
[  393.511252]  ? mark_held_locks+0x130/0x130
[  393.515505]  ? filemap_map_pages+0xd6b/0x1a20
[  393.520028]  ? lock_downgrade+0x900/0x900
[  393.524186]  ? check_preemption_disabled+0x48/0x280
[  393.529216]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  393.534156]  ? kasan_check_read+0x11/0x20
[  393.538312]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.543595]  ? rcu_softirq_qs+0x20/0x20
[  393.547590]  ? filemap_map_pages+0xd92/0x1a20
[  393.552110]  ? find_get_entries_tag+0x1400/0x1400
[  393.556966]  ? debug_object_destroy+0x2b0/0x2b0
[  393.561667]  ? lock_pi_update_atomic+0x150/0x150
[  393.566430]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.571987]  ? lock_acquire+0x1ed/0x520
[  393.575988]  ? ext4_filemap_fault+0x7a/0xad
[  393.580343]  ? lock_release+0xa00/0xa00
[  393.584325]  ? perf_trace_sched_process_exec+0x860/0x860
[  393.589793]  ? print_usage_bug+0xc0/0xc0
[  393.593865]  ? print_usage_bug+0xc0/0xc0
[  393.597948]  ? down_read+0x8d/0x120
[  393.601581]  ? ext4_filemap_fault+0x7a/0xad
[  393.605911]  ? __down_interruptible+0x700/0x700
[  393.610598]  ext4_filemap_fault+0x82/0xad
[  393.614758]  __do_fault+0x100/0x6b0
[  393.618401]  ? pmd_devmap_trans_unstable+0x220/0x220
[  393.623515]  ? mark_held_locks+0x130/0x130
[  393.627765]  ? mark_held_locks+0x130/0x130
[  393.632036]  ? debug_smp_processor_id+0x1c/0x20
[  393.636714]  ? perf_trace_lock+0x14d/0x7a0
[  393.640965]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.646530]  __handle_mm_fault+0x3ea0/0x5be0
[  393.650956]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  393.655810]  ? lock_is_held_type+0x210/0x210
[  393.660232]  ? ksys_dup3+0x680/0x680
[  393.663967]  ? zap_class+0x640/0x640
[  393.667869]  ? zap_class+0x640/0x640
[  393.671606]  ? __x64_sys_futex+0x53e/0x6a0
[  393.675872]  ? find_held_lock+0x36/0x1c0
[  393.679951]  ? handle_mm_fault+0x42a/0xc70
[  393.684204]  ? lock_downgrade+0x900/0x900
[  393.688361]  ? check_preemption_disabled+0x48/0x280
[  393.693391]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  393.698330]  ? kasan_check_read+0x11/0x20
[  393.702489]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.707781]  ? rcu_softirq_qs+0x20/0x20
[  393.711764]  ? trace_hardirqs_off_caller+0x310/0x310
[  393.716884]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.722433]  ? check_preemption_disabled+0x48/0x280
[  393.727466]  handle_mm_fault+0x54f/0xc70
[  393.731542]  ? __handle_mm_fault+0x5be0/0x5be0
[  393.736138]  ? find_vma+0x34/0x190
[  393.739693]  __do_page_fault+0x5e8/0xe60
[  393.743762]  ? trace_hardirqs_off+0xb8/0x310
[  393.748200]  do_page_fault+0xf2/0x7e0
[  393.752029]  ? vmalloc_sync_all+0x30/0x30
[  393.756192]  ? error_entry+0x70/0xd0
[  393.759918]  ? trace_hardirqs_off_caller+0xbb/0x310
[  393.764941]  ? trace_hardirqs_on_caller+0xc0/0x310
[  393.769877]  ? syscall_return_slowpath+0x5e0/0x5e0
[  393.774817]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.779671]  ? trace_hardirqs_on_caller+0x310/0x310
[  393.784697]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  393.790160]  ? prepare_exit_to_usermode+0x291/0x3b0
[  393.795184]  ? page_fault+0x8/0x30
[  393.798740]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.803600]  ? page_fault+0x8/0x30
[  393.807152]  page_fault+0x1e/0x30
[  393.810611] RIP: 0033:0x40f9c0
[  393.813826] Code: Bad RIP value.
[  393.817200] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  393.822567] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  393.829840] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  393.837119] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  393.844395] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  393.851756] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  393.859077] warn_alloc_show_mem: 1 callbacks suppressed
[  393.859089] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  393.859091] Mem-Info:
[  393.859123] active_anon:54833 inactive_anon:712 isolated_anon:0
[  393.859123]  active_file:11 inactive_file:12 isolated_file:0
[  393.859123]  unevictable:0 dirty:0 writeback:0 unstable:0
[  393.859123]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  393.859123]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  393.859123]  free:13768 free_pcp:742 free_cma:0
[  393.864470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  393.871326] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  393.873736] Call Trace:
[  393.906608] 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
[  393.915967]  dump_stack+0x244/0x39d
[  393.943533] lowmem_reserve[]: 0 2818 6321 6321
[  393.946126]  ? dump_stack_print_info.cold.1+0x20/0x20
[  393.972215] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  393.975855]  warn_alloc.cold.116+0xb7/0x1bd
[  393.980416] lowmem_reserve[]: 0 0 3503 3503
[  393.985607]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  394.013353] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  394.017686]  ? lock_downgrade+0x900/0x900
[  394.021995] lowmem_reserve[]: 0 0 0 0
[  394.026871]  ? trace_hardirqs_off+0xb8/0x310
[  394.056016] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  394.060173]  ? trace_hardirqs_off+0xb8/0x310
[  394.063957] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  394.068371]  __alloc_pages_slowpath+0x26e8/0x2e10
[  394.081877] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  394.086318]  ? warn_alloc+0x120/0x120
[  394.101982] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  394.106837]  ? print_usage_bug+0xc0/0xc0
[  394.122174] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  394.125967]  ? warn_alloc+0x120/0x120
[  394.134833] 782 total pagecache pages
[  394.138895]  ? warn_alloc+0x120/0x120
[  394.147460] 0 pages in swap cache
[  394.151257]  ? print_usage_bug+0xc0/0xc0
[  394.155050] Swap cache stats: add 0, delete 0, find 0/0
[  394.158852]  ? print_usage_bug+0xc0/0xc0
[  394.162290] Free swap  = 0kB
[  394.166356]  ? __lock_acquire+0x62f/0x4c20
[  394.171702] Total swap = 0kB
[  394.175766]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.178776] 1965979 pages RAM
[  394.183066]  ? should_fail+0x22d/0xd01
[  394.186070] 0 pages HighMem/MovableOnly
[  394.191610]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  394.194696] 342853 pages reserved
[  394.194705] 0 pages cma reserved
[  394.198597]  ? __lock_acquire+0x62f/0x4c20
[  394.202651] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  394.207677]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  394.211201] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  394.214483]  ? __lock_acquire+0x62f/0x4c20
[  394.218701] syz-fuzzer cpuset=/ mems_allowed=0
[  394.225197]  ? should_fail+0x22d/0xd01
[  394.253205]  ? find_held_lock+0x36/0x1c0
[  394.257290]  ? mark_held_locks+0x130/0x130
[  394.261539]  ? mark_held_locks+0x130/0x130
[  394.265780]  ? zap_class+0x640/0x640
[  394.269510]  ? mark_held_locks+0xc7/0x130
[  394.273669]  ? do_raw_spin_unlock+0xa7/0x330
[  394.278092]  ? zap_class+0x640/0x640
[  394.281815]  ? print_usage_bug+0xc0/0xc0
[  394.285889]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.291437]  ? check_preemption_disabled+0x48/0x280
[  394.296472]  ? __lock_is_held+0xb5/0x140
[  394.300549]  __alloc_pages_nodemask+0xa80/0xde0
[  394.305233]  ? zap_class+0x640/0x640
[  394.308964]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  394.314032]  ? find_held_lock+0x36/0x1c0
[  394.318119]  ? ____cache_alloc_node+0x1c7/0x1e0
[  394.322800]  ? lock_downgrade+0x900/0x900
[  394.326967]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.332533]  cache_grow_begin+0xa5/0x8c0
[  394.336601]  ? do_raw_spin_unlock+0xa7/0x330
[  394.341041]  fallback_alloc+0x204/0x2e0
[  394.345047]  ____cache_alloc_node+0x1c7/0x1e0
[  394.349563]  kmem_cache_alloc_node+0xe3/0x730
[  394.354068]  ? ipv6_get_ifaddr+0x42e/0x620
[  394.358364]  __alloc_skb+0x119/0x770
[  394.362087]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.367377]  ? netdev_alloc_frag+0x1f0/0x1f0
[  394.371794]  ? lock_downgrade+0x900/0x900
[  394.375958]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.381508]  ? refcount_sub_and_test_checked+0x203/0x310
[  394.386974]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  394.392452]  ? addrconf_rs_timer+0x690/0x690
[  394.396882]  ndisc_alloc_skb+0x144/0x340
[  394.400957]  ndisc_send_rs+0x331/0x6e0
[  394.404858]  addrconf_rs_timer+0x314/0x690
[  394.409109]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.413370]  call_timer_fn+0x272/0x920
[  394.417266]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.421520]  ? process_timeout+0x40/0x40
[  394.425611]  ? __run_timers+0x7da/0xc70
[  394.429600]  ? _raw_spin_unlock_irq+0x27/0x80
[  394.434104]  ? _raw_spin_unlock_irq+0x27/0x80
[  394.438608]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.442853]  ? lockdep_hardirqs_on+0x296/0x5b0
[  394.447450]  ? trace_hardirqs_on+0xbd/0x310
[  394.451787]  ? kasan_check_read+0x11/0x20
[  394.455945]  ? __run_timers+0x7da/0xc70
[  394.459932]  ? trace_hardirqs_off_caller+0x310/0x310
[  394.465063]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.469313]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.473555]  __run_timers+0x7e5/0xc70
[  394.477373]  ? timer_fixup_init+0x70/0x70
[  394.481529]  ? _raw_spin_unlock_irq+0x27/0x80
[  394.486045]  ? _raw_spin_unlock_irq+0x27/0x80
[  394.490552]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  394.495146]  ? trace_hardirqs_on+0xbd/0x310
[  394.499473]  ? kasan_check_read+0x11/0x20
[  394.503631]  ? finish_task_switch+0x1f4/0x910
[  394.508136]  ? trace_hardirqs_off_caller+0x310/0x310
[  394.513247]  ? compat_start_thread+0x80/0x80
[  394.517690]  ? pvclock_read_flags+0x160/0x160
[  394.522191]  ? __switch_to_asm+0x34/0x70
[  394.526268]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.531823]  ? check_preemption_disabled+0x48/0x280
[  394.536858]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  394.542404]  ? rcu_pm_notify+0xc0/0xc0
[  394.546304]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.551849]  ? check_preemption_disabled+0x48/0x280
[  394.556878]  run_timer_softirq+0x52/0xb0
[  394.561084]  ? rcu_read_lock_sched_held+0x14f/0x180
[  394.566113]  __do_softirq+0x308/0xb7e
[  394.569938]  ? retint_kernel+0x2d/0x2d
[  394.573836]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  394.578945]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  394.584401]  ? trace_hardirqs_on+0x310/0x310
[  394.588822]  ? schedule+0x108/0x460
[  394.592459]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  394.597234]  ? trace_hardirqs_off+0xb8/0x310
[  394.601652]  ? smpboot_thread_fn+0x68b/0xa00
[  394.606076]  ? trace_hardirqs_on+0x310/0x310
[  394.610494]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.616059]  ? check_preemption_disabled+0x48/0x280
[  394.621086]  ? takeover_tasklets+0xa90/0xa90
[  394.625502]  run_ksoftirqd+0x5e/0x100
[  394.629311]  smpboot_thread_fn+0x68b/0xa00
[  394.633557]  ? sort_range+0x30/0x30
[  394.637197]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  394.642307]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.647854]  ? __kthread_parkme+0xfb/0x1a0
[  394.652101]  ? sort_range+0x30/0x30
[  394.655737]  kthread+0x35a/0x440
[  394.659122]  ? kthread_stop+0x900/0x900
[  394.663110]  ret_from_fork+0x3a/0x50
[  394.666851] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  394.666923] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  394.673789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  394.673794] Call Trace:
[  394.673801]  <IRQ>
[  394.673819]  dump_stack+0x244/0x39d
[  394.673838]  ? dump_stack_print_info.cold.1+0x20/0x20
[  394.680407] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  394.689690]  warn_alloc.cold.116+0xb7/0x1bd
[  394.692252] ksoftirqd/0 cpuset=/ mems_allowed=0
[  394.694403]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  394.727345]  ? lock_downgrade+0x900/0x900
[  394.731505]  ? trace_hardirqs_off+0xb8/0x310
[  394.735930]  ? trace_hardirqs_off+0xb8/0x310
[  394.740362]  __alloc_pages_slowpath+0x26e8/0x2e10
[  394.745242]  ? warn_alloc+0x120/0x120
[  394.749060]  ? print_usage_bug+0xc0/0xc0
[  394.753134]  ? warn_alloc+0x120/0x120
[  394.756949]  ? warn_alloc+0x120/0x120
[  394.760764]  ? print_usage_bug+0xc0/0xc0
[  394.764844]  ? kvm_clock_read+0x18/0x30
[  394.768831]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  394.773868]  ? print_usage_bug+0xc0/0xc0
[  394.777942]  ? __lock_acquire+0x62f/0x4c20
[  394.782193]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.787739]  ? should_fail+0x22d/0xd01
[  394.791638]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.796926]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  394.802515]  ? __lock_acquire+0x62f/0x4c20
[  394.806792]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  394.811904]  ? __lock_acquire+0x62f/0x4c20
[  394.816150]  ? should_fail+0x22d/0xd01
[  394.820054]  ? rcu_irq_exit+0x1a2/0x390
[  394.824224]  ? mark_held_locks+0x130/0x130
[  394.828477]  ? mark_held_locks+0x130/0x130
[  394.832728]  ? mark_held_locks+0xc7/0x130
[  394.836885]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  394.841910]  ? zap_class+0x640/0x640
[  394.845636]  ? print_usage_bug+0xc0/0xc0
[  394.849712]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.855259]  ? check_preemption_disabled+0x48/0x280
[  394.860295]  ? __lock_is_held+0xb5/0x140
[  394.864373]  __alloc_pages_nodemask+0xa80/0xde0
[  394.869057]  ? zap_class+0x640/0x640
[  394.872789]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  394.877830]  ? find_held_lock+0x36/0x1c0
[  394.881913]  ? ____cache_alloc_node+0x1c7/0x1e0
[  394.886593]  ? lock_downgrade+0x900/0x900
[  394.890758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.896313]  cache_grow_begin+0xa5/0x8c0
[  394.900384]  ? do_raw_spin_unlock+0xa7/0x330
[  394.904815]  fallback_alloc+0x204/0x2e0
[  394.908810]  ____cache_alloc_node+0x1c7/0x1e0
[  394.913321]  kmem_cache_alloc_node+0xe3/0x730
[  394.917827]  ? ipv6_get_ifaddr+0x42e/0x620
[  394.922082]  __alloc_skb+0x119/0x770
[  394.925803]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.931095]  ? netdev_alloc_frag+0x1f0/0x1f0
[  394.935515]  ? lock_downgrade+0x900/0x900
[  394.939678]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.945223]  ? refcount_sub_and_test_checked+0x203/0x310
[  394.950687]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  394.956149]  ? addrconf_rs_timer+0x690/0x690
[  394.960580]  ndisc_alloc_skb+0x144/0x340
[  394.964684]  ndisc_send_rs+0x331/0x6e0
[  394.968586]  addrconf_rs_timer+0x314/0x690
[  394.972835]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.977094]  call_timer_fn+0x272/0x920
[  394.980988]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.985253]  ? process_timeout+0x40/0x40
[  394.989334]  ? mark_held_locks+0xc7/0x130
[  394.993508]  ? _raw_spin_unlock_irq+0x27/0x80
[  394.998024]  ? _raw_spin_unlock_irq+0x27/0x80
[  395.002543]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.006795]  ? lockdep_hardirqs_on+0x296/0x5b0
[  395.011392]  ? trace_hardirqs_on+0xbd/0x310
[  395.015721]  ? kasan_check_read+0x11/0x20
[  395.019874]  ? __run_timers+0x7da/0xc70
[  395.023860]  ? trace_hardirqs_off_caller+0x310/0x310
[  395.028974]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.033245]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.037489]  __run_timers+0x7e5/0xc70
[  395.041309]  ? timer_fixup_init+0x70/0x70
[  395.045472]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  395.050498]  ? zap_class+0x640/0x640
[  395.054225]  ? print_usage_bug+0xc0/0xc0
[  395.058300]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  395.063510]  ? find_held_lock+0x36/0x1c0
[  395.067587]  ? zap_class+0x640/0x640
[  395.071318]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.076867]  ? check_preemption_disabled+0x48/0x280
[  395.081901]  ? __lock_is_held+0xb5/0x140
[  395.085972]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.091542]  ? check_preemption_disabled+0x48/0x280
[  395.096571]  run_timer_softirq+0x52/0xb0
[  395.100651]  ? rcu_read_lock_sched_held+0x14f/0x180
[  395.105679]  __do_softirq+0x308/0xb7e
[  395.109498]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  395.114017]  ? lock_downgrade+0x900/0x900
[  395.118184]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  395.123306]  ? pvclock_read_flags+0x160/0x160
[  395.127813]  ? lapic_next_event+0x5a/0x90
[  395.131974]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.137542]  ? kvm_clock_read+0x18/0x30
[  395.141524]  ? kvm_sched_clock_read+0x9/0x20
[  395.145943]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.151489]  ? check_preemption_disabled+0x48/0x280
[  395.156526]  irq_exit+0x17f/0x1c0
[  395.159992]  smp_apic_timer_interrupt+0x1cb/0x760
[  395.164863]  ? smp_call_function_single_interrupt+0x159/0x650
[  395.170757]  ? smp_call_function_single_interrupt+0x650/0x650
[  395.176666]  ? interrupt_entry+0xb5/0xc0
[  395.180737]  ? trace_hardirqs_off_caller+0xbb/0x310
[  395.185775]  ? trace_hardirqs_off_caller+0xbb/0x310
[  395.190804]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.195656]  ? trace_hardirqs_on_caller+0x310/0x310
[  395.200679]  ? trace_hardirqs_on_caller+0x310/0x310
[  395.205704]  ? task_prio+0x50/0x50
[  395.209256]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.214809]  ? check_preemption_disabled+0x48/0x280
[  395.219842]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.224704]  apic_timer_interrupt+0xf/0x20
[  395.228940]  </IRQ>
[  395.231188] RIP: 0010:dump_stack+0x358/0x39d
[  395.235607] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  395.254517] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  395.262233] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  395.269512] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  395.276791] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  395.284123] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  395.291398] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  395.298695]  ? dump_stack+0x34f/0x39d
[  395.302563]  ? dump_stack_print_info.cold.1+0x20/0x20
[  395.307766]  ? mark_held_locks+0x130/0x130
[  395.312033]  ? mark_held_locks+0x130/0x130
[  395.316286]  dump_header+0x27b/0xf72
[  395.320042]  ? pagefault_out_of_memory+0x197/0x197
[  395.324991]  ? __lock_acquire+0x62f/0x4c20
[  395.329259]  ? percpu_ref_get_many+0x240/0x240
[  395.333860]  ? print_usage_bug+0xc0/0xc0
[  395.337939]  ? zap_class+0x640/0x640
[  395.341664]  ? print_usage_bug+0xc0/0xc0
[  395.345836]  ? print_usage_bug+0xc0/0xc0
[  395.349907]  ? zap_class+0x640/0x640
[  395.353633]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.359186]  ? find_held_lock+0x36/0x1c0
[  395.363271]  ? mark_held_locks+0xc7/0x130
[  395.367429]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  395.372541]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  395.377655]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  395.382247]  ? trace_hardirqs_on+0xbd/0x310
[  395.386576]  ? kasan_check_read+0x11/0x20
[  395.390732]  ? ___ratelimit+0x3b4/0x672
[  395.394716]  ? trace_hardirqs_off_caller+0x310/0x310
[  395.399873]  ? trace_hardirqs_on+0x310/0x310
[  395.404297]  ? lock_downgrade+0x900/0x900
[  395.408463]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  395.413578]  ? ___ratelimit+0x3b9/0x672
[  395.417565]  ? idr_get_free+0xf70/0xf70
[  395.421543]  ? find_held_lock+0x36/0x1c0
[  395.425619]  oom_kill_process.cold.27+0x10/0x903
[  395.430384]  ? zap_class+0x640/0x640
[  395.434154]  ? check_preemption_disabled+0x48/0x280
[  395.439192]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  395.444135]  ? kasan_check_read+0x11/0x20
[  395.448290]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.453578]  ? oom_evaluate_task+0x540/0x540
[  395.458027]  ? find_held_lock+0x36/0x1c0
[  395.462111]  ? out_of_memory+0x974/0x1430
[  395.466268]  ? lock_downgrade+0x900/0x900
[  395.470423]  ? check_preemption_disabled+0x48/0x280
[  395.475451]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  395.480387]  ? kasan_check_read+0x11/0x20
[  395.484543]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.489831]  ? rcu_softirq_qs+0x20/0x20
[  395.493823]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.499371]  ? oom_evaluate_task+0x302/0x540
[  395.503795]  out_of_memory+0xa84/0x1430
[  395.507795]  ? oom_killer_disable+0x3a0/0x3a0
[  395.512303]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  395.517244]  ? __ww_mutex_check_waiters+0x160/0x160
[  395.522279]  __alloc_pages_slowpath+0x2354/0x2e10
[  395.527161]  ? warn_alloc+0x120/0x120
[  395.530971]  ? mark_held_locks+0x130/0x130
[  395.535325]  ? find_get_entry+0xaae/0x1120
[  395.539580]  ? filemap_map_pages+0x1a20/0x1a20
[  395.544176]  ? zap_class+0x640/0x640
[  395.547905]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.553452]  ? check_preemption_disabled+0x48/0x280
[  395.558479]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.564244]  ? should_fail+0x22d/0xd01
[  395.568151]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  395.573268]  ? zap_class+0x640/0x640
[  395.577030]  ? __lock_is_held+0xb5/0x140
[  395.581112]  ? mark_held_locks+0x130/0x130
[  395.585362]  ? lock_release+0xa00/0xa00
[  395.589358]  ? perf_trace_sched_process_exec+0x860/0x860
[  395.594833]  ? xa_load+0x2ba/0x460
[  395.598382]  ? lock_downgrade+0x900/0x900
[  395.602544]  ? __might_sleep+0x95/0x190
[  395.606530]  __alloc_pages_nodemask+0xa80/0xde0
[  395.611269]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  395.616296]  ? __page_cache_alloc+0x191/0x5c0
[  395.620802]  ? xa_load+0x2e1/0x460
[  395.624354]  ? xa_clear_mark+0x40/0x40
[  395.628254]  ? zap_class+0x640/0x640
[  395.631984]  ? zap_class+0x640/0x640
[  395.635726]  ? zap_class+0x640/0x640
[  395.639449]  ? __do_page_cache_readahead+0x663/0x810
[  395.644566]  ? find_held_lock+0x36/0x1c0
[  395.648650]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  395.654203]  alloc_pages_current+0x173/0x350
[  395.658628]  __page_cache_alloc+0x38c/0x5c0
[  395.662956]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  395.668060]  ? kasan_check_read+0x11/0x20
[  395.672222]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.677513]  ? generic_perform_write+0x6a0/0x6a0
[  395.682281]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.687829]  ? check_preemption_disabled+0x48/0x280
[  395.692862]  filemap_fault+0x1595/0x25f0
[  395.696949]  ? __lock_page_or_retry+0xa00/0xa00
[  395.701632]  ? mark_held_locks+0x130/0x130
[  395.705887]  ? filemap_map_pages+0xd6b/0x1a20
[  395.710393]  ? lock_downgrade+0x900/0x900
[  395.714552]  ? check_preemption_disabled+0x48/0x280
[  395.719583]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  395.724520]  ? kasan_check_read+0x11/0x20
[  395.728674]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.733959]  ? rcu_softirq_qs+0x20/0x20
[  395.737953]  ? filemap_map_pages+0xd92/0x1a20
[  395.742470]  ? find_get_entries_tag+0x1400/0x1400
[  395.747337]  ? debug_object_destroy+0x2b0/0x2b0
[  395.752035]  ? lock_pi_update_atomic+0x150/0x150
[  395.756803]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.762363]  ? lock_acquire+0x1ed/0x520
[  395.766345]  ? ext4_filemap_fault+0x7a/0xad
[  395.770682]  ? lock_release+0xa00/0xa00
[  395.774665]  ? perf_trace_sched_process_exec+0x860/0x860
[  395.780125]  ? print_usage_bug+0xc0/0xc0
[  395.784202]  ? print_usage_bug+0xc0/0xc0
[  395.788286]  ? down_read+0x8d/0x120
[  395.791925]  ? ext4_filemap_fault+0x7a/0xad
[  395.796256]  ? __down_interruptible+0x700/0x700
[  395.800946]  ext4_filemap_fault+0x82/0xad
[  395.805107]  __do_fault+0x100/0x6b0
[  395.808752]  ? pmd_devmap_trans_unstable+0x220/0x220
[  395.813878]  ? mark_held_locks+0x130/0x130
[  395.818128]  ? mark_held_locks+0x130/0x130
[  395.822375]  ? debug_smp_processor_id+0x1c/0x20
[  395.827053]  ? perf_trace_lock+0x14d/0x7a0
[  395.831303]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.836857]  __handle_mm_fault+0x3ea0/0x5be0
[  395.841282]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  395.846140]  ? lock_is_held_type+0x210/0x210
[  395.850563]  ? ksys_dup3+0x680/0x680
[  395.854300]  ? zap_class+0x640/0x640
[  395.858042]  ? zap_class+0x640/0x640
[  395.861765]  ? __x64_sys_futex+0x53e/0x6a0
[  395.866036]  ? find_held_lock+0x36/0x1c0
[  395.870120]  ? handle_mm_fault+0x42a/0xc70
[  395.874366]  ? lock_downgrade+0x900/0x900
[  395.878523]  ? check_preemption_disabled+0x48/0x280
[  395.883554]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  395.888505]  ? kasan_check_read+0x11/0x20
[  395.892661]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.897947]  ? rcu_softirq_qs+0x20/0x20
[  395.901933]  ? trace_hardirqs_off_caller+0x310/0x310
[  395.907065]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.912612]  ? check_preemption_disabled+0x48/0x280
[  395.917663]  handle_mm_fault+0x54f/0xc70
[  395.921754]  ? __handle_mm_fault+0x5be0/0x5be0
[  395.926360]  ? find_vma+0x34/0x190
[  395.929914]  __do_page_fault+0x5e8/0xe60
[  395.933983]  ? trace_hardirqs_off+0xb8/0x310
[  395.938428]  do_page_fault+0xf2/0x7e0
[  395.942242]  ? vmalloc_sync_all+0x30/0x30
[  395.946399]  ? error_entry+0x70/0xd0
[  395.950126]  ? trace_hardirqs_off_caller+0xbb/0x310
[  395.955149]  ? trace_hardirqs_on_caller+0xc0/0x310
[  395.960093]  ? syscall_return_slowpath+0x5e0/0x5e0
[  395.965046]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.969902]  ? trace_hardirqs_on_caller+0x310/0x310
[  395.974924]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  395.980385]  ? prepare_exit_to_usermode+0x291/0x3b0
[  395.985410]  ? page_fault+0x8/0x30
[  395.988960]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.993814]  ? page_fault+0x8/0x30
[  395.997364]  page_fault+0x1e/0x30
[  396.000824] RIP: 0033:0x40f9c0
[  396.004054] Code: Bad RIP value.
[  396.007424] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  396.012799] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  396.020075] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  396.027349] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  396.034624] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  396.041899] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  396.049293] warn_alloc_show_mem: 1 callbacks suppressed
[  396.049305] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  396.049307] Mem-Info:
[  396.049340] active_anon:54833 inactive_anon:712 isolated_anon:0
[  396.049340]  active_file:11 inactive_file:12 isolated_file:0
[  396.049340]  unevictable:0 dirty:0 writeback:0 unstable:0
[  396.049340]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  396.049340]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  396.049340]  free:13768 free_pcp:742 free_cma:0
[  396.054690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  396.061462] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  396.063867] Call Trace:
[  396.096787] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  396.106149]  dump_stack+0x244/0x39d
[  396.133717] lowmem_reserve[]: 0 2818 6321 6321
[  396.136307]  ? dump_stack_print_info.cold.1+0x20/0x20
[  396.162438] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  396.166082]  warn_alloc.cold.116+0xb7/0x1bd
[  396.170637] lowmem_reserve[]: 0 0 3503 3503
[  396.175833]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  396.203574] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  396.207902]  ? lock_downgrade+0x900/0x900
[  396.212200] lowmem_reserve[]: 0 0 0 0
[  396.217068]  ? trace_hardirqs_off+0xb8/0x310
[  396.246199] 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
[  396.250352]  ? trace_hardirqs_off+0xb8/0x310
[  396.254136] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  396.258551]  __alloc_pages_slowpath+0x26e8/0x2e10
[  396.272057] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  396.276493]  ? warn_alloc+0x120/0x120
[  396.292201] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  396.297051]  ? print_usage_bug+0xc0/0xc0
[  396.312386] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  396.316185]  ? warn_alloc+0x120/0x120
[  396.325020] 782 total pagecache pages
[  396.329088]  ? warn_alloc+0x120/0x120
[  396.337669] 0 pages in swap cache
[  396.341464]  ? print_usage_bug+0xc0/0xc0
[  396.345255] Swap cache stats: add 0, delete 0, find 0/0
[  396.349146]  ? print_usage_bug+0xc0/0xc0
[  396.352584] Free swap  = 0kB
[  396.356645]  ? __lock_acquire+0x62f/0x4c20
[  396.361992] Total swap = 0kB
[  396.366081]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.369086] 1965979 pages RAM
[  396.373329]  ? should_fail+0x22d/0xd01
[  396.376331] 0 pages HighMem/MovableOnly
[  396.381871]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  396.384963] 342853 pages reserved
[  396.388856]  ? __lock_acquire+0x62f/0x4c20
[  396.392817] 0 pages cma reserved
[  396.397922]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  396.401418] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  396.405589]  ? __lock_acquire+0x62f/0x4c20
[  396.405606]  ? should_fail+0x22d/0xd01
[  396.409131] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  396.414063]  ? find_held_lock+0x36/0x1c0
[  396.420539] syz-fuzzer cpuset=/ mems_allowed=0
[  396.424780]  ? mark_held_locks+0x130/0x130
[  396.451742]  ? mark_held_locks+0x130/0x130
[  396.455987]  ? zap_class+0x640/0x640
[  396.459732]  ? mark_held_locks+0xc7/0x130
[  396.463891]  ? do_raw_spin_unlock+0xa7/0x330
[  396.468312]  ? zap_class+0x640/0x640
[  396.472050]  ? print_usage_bug+0xc0/0xc0
[  396.476131]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.481682]  ? check_preemption_disabled+0x48/0x280
[  396.486721]  ? __lock_is_held+0xb5/0x140
[  396.490800]  __alloc_pages_nodemask+0xa80/0xde0
[  396.495493]  ? zap_class+0x640/0x640
[  396.499223]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  396.504262]  ? find_held_lock+0x36/0x1c0
[  396.508354]  ? ____cache_alloc_node+0x1c7/0x1e0
[  396.513050]  ? lock_downgrade+0x900/0x900
[  396.517216]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.522768]  cache_grow_begin+0xa5/0x8c0
[  396.526839]  ? do_raw_spin_unlock+0xa7/0x330
[  396.531275]  fallback_alloc+0x204/0x2e0
[  396.535266]  ____cache_alloc_node+0x1c7/0x1e0
[  396.539783]  kmem_cache_alloc_node+0xe3/0x730
[  396.544293]  ? ipv6_get_ifaddr+0x42e/0x620
[  396.548548]  __alloc_skb+0x119/0x770
[  396.552289]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.557583]  ? netdev_alloc_frag+0x1f0/0x1f0
[  396.562019]  ? lock_downgrade+0x900/0x900
[  396.566187]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.571733]  ? refcount_sub_and_test_checked+0x203/0x310
[  396.577199]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  396.582660]  ? addrconf_rs_timer+0x690/0x690
[  396.587092]  ndisc_alloc_skb+0x144/0x340
[  396.591169]  ndisc_send_rs+0x331/0x6e0
[  396.595073]  addrconf_rs_timer+0x314/0x690
[  396.599321]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.603595]  call_timer_fn+0x272/0x920
[  396.607510]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.611755]  ? process_timeout+0x40/0x40
[  396.615836]  ? __run_timers+0x7da/0xc70
[  396.619822]  ? _raw_spin_unlock_irq+0x27/0x80
[  396.624325]  ? _raw_spin_unlock_irq+0x27/0x80
[  396.628829]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.633077]  ? lockdep_hardirqs_on+0x296/0x5b0
[  396.637670]  ? trace_hardirqs_on+0xbd/0x310
[  396.642015]  ? kasan_check_read+0x11/0x20
[  396.646173]  ? __run_timers+0x7da/0xc70
[  396.650160]  ? trace_hardirqs_off_caller+0x310/0x310
[  396.655281]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.659529]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.663772]  __run_timers+0x7e5/0xc70
[  396.667594]  ? timer_fixup_init+0x70/0x70
[  396.671750]  ? _raw_spin_unlock_irq+0x27/0x80
[  396.676251]  ? _raw_spin_unlock_irq+0x27/0x80
[  396.680777]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  396.685378]  ? trace_hardirqs_on+0xbd/0x310
[  396.689706]  ? kasan_check_read+0x11/0x20
[  396.693865]  ? finish_task_switch+0x1f4/0x910
[  396.698375]  ? trace_hardirqs_off_caller+0x310/0x310
[  396.703488]  ? compat_start_thread+0x80/0x80
[  396.707930]  ? pvclock_read_flags+0x160/0x160
[  396.712431]  ? __switch_to_asm+0x34/0x70
[  396.716506]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.722058]  ? check_preemption_disabled+0x48/0x280
[  396.727096]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  396.732645]  ? rcu_pm_notify+0xc0/0xc0
[  396.736547]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.742095]  ? check_preemption_disabled+0x48/0x280
[  396.747212]  run_timer_softirq+0x52/0xb0
[  396.751289]  ? rcu_read_lock_sched_held+0x14f/0x180
[  396.756322]  __do_softirq+0x308/0xb7e
[  396.760136]  ? retint_kernel+0x2d/0x2d
[  396.764053]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  396.769165]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  396.774625]  ? trace_hardirqs_on+0x310/0x310
[  396.779060]  ? schedule+0x108/0x460
[  396.782696]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  396.787472]  ? trace_hardirqs_off+0xb8/0x310
[  396.791890]  ? smpboot_thread_fn+0x68b/0xa00
[  396.796310]  ? trace_hardirqs_on+0x310/0x310
[  396.801040]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.806588]  ? check_preemption_disabled+0x48/0x280
[  396.811616]  ? takeover_tasklets+0xa90/0xa90
[  396.816049]  run_ksoftirqd+0x5e/0x100
[  396.819860]  smpboot_thread_fn+0x68b/0xa00
[  396.824112]  ? sort_range+0x30/0x30
[  396.827750]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  396.832862]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.838453]  ? __kthread_parkme+0xfb/0x1a0
[  396.842717]  ? sort_range+0x30/0x30
[  396.846355]  kthread+0x35a/0x440
[  396.849729]  ? kthread_stop+0x900/0x900
[  396.853716]  ret_from_fork+0x3a/0x50
[  396.857455] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  396.857527] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  396.864388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  396.864394] Call Trace:
[  396.864400]  <IRQ>
[  396.864417]  dump_stack+0x244/0x39d
[  396.864436]  ? dump_stack_print_info.cold.1+0x20/0x20
[  396.871060] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  396.880285]  warn_alloc.cold.116+0xb7/0x1bd
[  396.882854] ksoftirqd/0 cpuset=/ mems_allowed=0
[  396.885028]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  396.917948]  ? lock_downgrade+0x900/0x900
[  396.922114]  ? trace_hardirqs_off+0xb8/0x310
[  396.926541]  ? trace_hardirqs_off+0xb8/0x310
[  396.930965]  __alloc_pages_slowpath+0x26e8/0x2e10
[  396.935858]  ? warn_alloc+0x120/0x120
[  396.939672]  ? print_usage_bug+0xc0/0xc0
[  396.943744]  ? warn_alloc+0x120/0x120
[  396.947561]  ? warn_alloc+0x120/0x120
[  396.951372]  ? print_usage_bug+0xc0/0xc0
[  396.955446]  ? print_usage_bug+0xc0/0xc0
[  396.959519]  ? __lock_acquire+0x62f/0x4c20
[  396.963775]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.969323]  ? should_fail+0x22d/0xd01
[  396.973228]  ? __lock_acquire+0x62f/0x4c20
[  396.977504]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  396.982626]  ? __lock_acquire+0x62f/0x4c20
[  396.986904]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  396.992030]  ? __lock_acquire+0x62f/0x4c20
[  396.996277]  ? should_fail+0x22d/0xd01
[  397.000184]  ? mark_held_locks+0x130/0x130
[  397.004433]  ? mark_held_locks+0x130/0x130
[  397.008675]  ? zap_class+0x640/0x640
[  397.012406]  ? zap_class+0x640/0x640
[  397.016133]  ? print_usage_bug+0xc0/0xc0
[  397.020202]  ? wq_watchdog_touch+0x9c/0xfe
[  397.024449]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.029995]  ? check_preemption_disabled+0x48/0x280
[  397.035067]  ? __lock_is_held+0xb5/0x140
[  397.039143]  __alloc_pages_nodemask+0xa80/0xde0
[  397.043823]  ? zap_class+0x640/0x640
[  397.047552]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  397.052589]  ? find_held_lock+0x36/0x1c0
[  397.056665]  ? ____cache_alloc_node+0x1c7/0x1e0
[  397.061347]  ? lock_downgrade+0x900/0x900
[  397.065514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.071068]  cache_grow_begin+0xa5/0x8c0
[  397.075138]  ? do_raw_spin_unlock+0xa7/0x330
[  397.079670]  fallback_alloc+0x204/0x2e0
[  397.083664]  ____cache_alloc_node+0x1c7/0x1e0
[  397.088173]  kmem_cache_alloc_node+0xe3/0x730
[  397.092683]  ? ipv6_get_ifaddr+0x42e/0x620
[  397.096937]  __alloc_skb+0x119/0x770
[  397.100657]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.105946]  ? netdev_alloc_frag+0x1f0/0x1f0
[  397.110367]  ? lock_downgrade+0x900/0x900
[  397.114558]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.120119]  ? refcount_sub_and_test_checked+0x203/0x310
[  397.125587]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  397.131056]  ? addrconf_rs_timer+0x690/0x690
[  397.135486]  ndisc_alloc_skb+0x144/0x340
[  397.139561]  ndisc_send_rs+0x331/0x6e0
[  397.143478]  addrconf_rs_timer+0x314/0x690
[  397.147786]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.152057]  call_timer_fn+0x272/0x920
[  397.155957]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.160205]  ? process_timeout+0x40/0x40
[  397.164288]  ? mark_held_locks+0xc7/0x130
[  397.168448]  ? _raw_spin_unlock_irq+0x27/0x80
[  397.172951]  ? _raw_spin_unlock_irq+0x27/0x80
[  397.177456]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.181833]  ? lockdep_hardirqs_on+0x296/0x5b0
[  397.186473]  ? trace_hardirqs_on+0xbd/0x310
[  397.190806]  ? kasan_check_read+0x11/0x20
[  397.194964]  ? __run_timers+0x7da/0xc70
[  397.198981]  ? trace_hardirqs_off_caller+0x310/0x310
[  397.204125]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.208459]  __run_timers+0x7e5/0xc70
[  397.212327]  ? timer_fixup_init+0x70/0x70
[  397.216490]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  397.221516]  ? zap_class+0x640/0x640
[  397.225245]  ? print_usage_bug+0xc0/0xc0
[  397.229320]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  397.234572]  ? find_held_lock+0x36/0x1c0
[  397.238652]  ? zap_class+0x640/0x640
[  397.242383]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.247931]  ? check_preemption_disabled+0x48/0x280
[  397.253029]  ? __lock_is_held+0xb5/0x140
[  397.257120]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.262712]  ? check_preemption_disabled+0x48/0x280
[  397.267747]  run_timer_softirq+0x52/0xb0
[  397.271827]  ? rcu_read_lock_sched_held+0x14f/0x180
[  397.276857]  __do_softirq+0x308/0xb7e
[  397.280671]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  397.285176]  ? lock_downgrade+0x900/0x900
[  397.289337]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  397.294459]  ? pvclock_read_flags+0x160/0x160
[  397.298967]  ? lapic_next_event+0x5a/0x90
[  397.303187]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.308745]  ? kvm_clock_read+0x18/0x30
[  397.312733]  ? kvm_sched_clock_read+0x9/0x20
[  397.317158]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.322705]  ? check_preemption_disabled+0x48/0x280
[  397.327790]  irq_exit+0x17f/0x1c0
[  397.331259]  smp_apic_timer_interrupt+0x1cb/0x760
[  397.336117]  ? smp_call_function_single_interrupt+0x159/0x650
[  397.342030]  ? smp_call_function_single_interrupt+0x650/0x650
[  397.347929]  ? interrupt_entry+0xb5/0xc0
[  397.352020]  ? trace_hardirqs_off_caller+0xbb/0x310
[  397.357052]  ? trace_hardirqs_off_caller+0xbb/0x310
[  397.362084]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  397.366981]  ? trace_hardirqs_on_caller+0x310/0x310
[  397.372039]  ? trace_hardirqs_on_caller+0x310/0x310
[  397.377069]  ? task_prio+0x50/0x50
[  397.380624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.386173]  ? check_preemption_disabled+0x48/0x280
[  397.391209]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  397.396071]  apic_timer_interrupt+0xf/0x20
[  397.400309]  </IRQ>
[  397.402568] RIP: 0010:dump_stack+0x358/0x39d
[  397.406988] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  397.425961] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  397.433710] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  397.441045] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  397.448369] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  397.455647] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  397.462922] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  397.470216]  ? dump_stack+0x34f/0x39d
[  397.474061]  ? dump_stack_print_info.cold.1+0x20/0x20
[  397.479266]  ? mark_held_locks+0x130/0x130
[  397.483556]  ? mark_held_locks+0x130/0x130
[  397.487814]  dump_header+0x27b/0xf72
[  397.491551]  ? pagefault_out_of_memory+0x197/0x197
[  397.496586]  ? __lock_acquire+0x62f/0x4c20
[  397.500878]  ? percpu_ref_get_many+0x240/0x240
[  397.505475]  ? print_usage_bug+0xc0/0xc0
[  397.509596]  ? zap_class+0x640/0x640
[  397.513323]  ? print_usage_bug+0xc0/0xc0
[  397.517392]  ? print_usage_bug+0xc0/0xc0
[  397.521463]  ? zap_class+0x640/0x640
[  397.525189]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.530744]  ? find_held_lock+0x36/0x1c0
[  397.534895]  ? mark_held_locks+0xc7/0x130
[  397.539097]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  397.544213]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  397.549327]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  397.553923]  ? trace_hardirqs_on+0xbd/0x310
[  397.558255]  ? kasan_check_read+0x11/0x20
[  397.562411]  ? ___ratelimit+0x3b4/0x672
[  397.566399]  ? trace_hardirqs_off_caller+0x310/0x310
[  397.571515]  ? trace_hardirqs_on+0x310/0x310
[  397.575933]  ? lock_downgrade+0x900/0x900
[  397.580101]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  397.585215]  ? ___ratelimit+0x3b9/0x672
[  397.589203]  ? idr_get_free+0xf70/0xf70
[  397.593190]  ? find_held_lock+0x36/0x1c0
[  397.597273]  oom_kill_process.cold.27+0x10/0x903
[  397.602094]  ? zap_class+0x640/0x640
[  397.605821]  ? check_preemption_disabled+0x48/0x280
[  397.610851]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  397.615794]  ? kasan_check_read+0x11/0x20
[  397.619951]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.625284]  ? oom_evaluate_task+0x540/0x540
[  397.629706]  ? find_held_lock+0x36/0x1c0
[  397.633791]  ? out_of_memory+0x974/0x1430
[  397.637992]  ? lock_downgrade+0x900/0x900
[  397.642175]  ? check_preemption_disabled+0x48/0x280
[  397.647206]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  397.652148]  ? kasan_check_read+0x11/0x20
[  397.656351]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.661682]  ? rcu_softirq_qs+0x20/0x20
[  397.665672]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.671669]  ? oom_evaluate_task+0x302/0x540
[  397.676137]  out_of_memory+0xa84/0x1430
[  397.680136]  ? oom_killer_disable+0x3a0/0x3a0
[  397.684646]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  397.689715]  ? __ww_mutex_check_waiters+0x160/0x160
[  397.694754]  __alloc_pages_slowpath+0x2354/0x2e10
[  397.699665]  ? warn_alloc+0x120/0x120
[  397.703492]  ? mark_held_locks+0x130/0x130
[  397.707834]  ? find_get_entry+0xaae/0x1120
[  397.712135]  ? filemap_map_pages+0x1a20/0x1a20
[  397.716736]  ? zap_class+0x640/0x640
[  397.720471]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.726035]  ? check_preemption_disabled+0x48/0x280
[  397.731110]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.736666]  ? should_fail+0x22d/0xd01
[  397.740569]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  397.745686]  ? zap_class+0x640/0x640
[  397.749439]  ? __lock_is_held+0xb5/0x140
[  397.753517]  ? mark_held_locks+0x130/0x130
[  397.757766]  ? lock_release+0xa00/0xa00
[  397.761758]  ? perf_trace_sched_process_exec+0x860/0x860
[  397.767225]  ? xa_load+0x2ba/0x460
[  397.770783]  ? lock_downgrade+0x900/0x900
[  397.774946]  ? __might_sleep+0x95/0x190
[  397.778938]  __alloc_pages_nodemask+0xa80/0xde0
[  397.783624]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  397.788651]  ? __page_cache_alloc+0x191/0x5c0
[  397.793157]  ? xa_load+0x2e1/0x460
[  397.796727]  ? xa_clear_mark+0x40/0x40
[  397.800670]  ? zap_class+0x640/0x640
[  397.804491]  ? zap_class+0x640/0x640
[  397.808215]  ? zap_class+0x640/0x640
[  397.811936]  ? __do_page_cache_readahead+0x663/0x810
[  397.817079]  ? find_held_lock+0x36/0x1c0
[  397.821158]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  397.826717]  alloc_pages_current+0x173/0x350
[  397.831142]  __page_cache_alloc+0x38c/0x5c0
[  397.835471]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  397.840413]  ? kasan_check_read+0x11/0x20
[  397.844567]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.849858]  ? generic_perform_write+0x6a0/0x6a0
[  397.854628]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.860182]  ? check_preemption_disabled+0x48/0x280
[  397.865216]  filemap_fault+0x1595/0x25f0
[  397.869299]  ? __lock_page_or_retry+0xa00/0xa00
[  397.873981]  ? mark_held_locks+0x130/0x130
[  397.878251]  ? filemap_map_pages+0xd6b/0x1a20
[  397.882756]  ? lock_downgrade+0x900/0x900
[  397.886918]  ? check_preemption_disabled+0x48/0x280
[  397.891949]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  397.896888]  ? kasan_check_read+0x11/0x20
[  397.901098]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.906384]  ? rcu_softirq_qs+0x20/0x20
[  397.910380]  ? filemap_map_pages+0xd92/0x1a20
[  397.914900]  ? find_get_entries_tag+0x1400/0x1400
[  397.919804]  ? debug_object_destroy+0x2b0/0x2b0
[  397.924488]  ? lock_pi_update_atomic+0x150/0x150
[  397.929253]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.934817]  ? lock_acquire+0x1ed/0x520
[  397.938810]  ? ext4_filemap_fault+0x7a/0xad
[  397.943155]  ? lock_release+0xa00/0xa00
[  397.947139]  ? perf_trace_sched_process_exec+0x860/0x860
[  397.952601]  ? print_usage_bug+0xc0/0xc0
[  397.956673]  ? print_usage_bug+0xc0/0xc0
[  397.960757]  ? down_read+0x8d/0x120
[  397.964394]  ? ext4_filemap_fault+0x7a/0xad
[  397.968730]  ? __down_interruptible+0x700/0x700
[  397.973462]  ext4_filemap_fault+0x82/0xad
[  397.977625]  __do_fault+0x100/0x6b0
[  397.981266]  ? pmd_devmap_trans_unstable+0x220/0x220
[  397.986385]  ? mark_held_locks+0x130/0x130
[  397.990632]  ? mark_held_locks+0x130/0x130
[  397.994882]  ? debug_smp_processor_id+0x1c/0x20
[  397.999563]  ? perf_trace_lock+0x14d/0x7a0
[  398.003858]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.009455]  __handle_mm_fault+0x3ea0/0x5be0
[  398.013889]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  398.018741]  ? lock_is_held_type+0x210/0x210
[  398.023168]  ? ksys_dup3+0x680/0x680
[  398.026907]  ? zap_class+0x640/0x640
[  398.030629]  ? zap_class+0x640/0x640
[  398.034354]  ? __x64_sys_futex+0x53e/0x6a0
[  398.038603]  ? find_held_lock+0x36/0x1c0
[  398.042698]  ? handle_mm_fault+0x42a/0xc70
[  398.046947]  ? lock_downgrade+0x900/0x900
[  398.051111]  ? check_preemption_disabled+0x48/0x280
[  398.056141]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  398.061079]  ? kasan_check_read+0x11/0x20
[  398.065236]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.070569]  ? rcu_softirq_qs+0x20/0x20
[  398.074557]  ? trace_hardirqs_off_caller+0x310/0x310
[  398.079717]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.085266]  ? check_preemption_disabled+0x48/0x280
[  398.090301]  handle_mm_fault+0x54f/0xc70
[  398.094390]  ? __handle_mm_fault+0x5be0/0x5be0
[  398.098989]  ? find_vma+0x34/0x190
[  398.102608]  __do_page_fault+0x5e8/0xe60
[  398.106678]  ? trace_hardirqs_off+0xb8/0x310
[  398.111109]  do_page_fault+0xf2/0x7e0
[  398.114921]  ? vmalloc_sync_all+0x30/0x30
[  398.119083]  ? error_entry+0x70/0xd0
[  398.122849]  ? trace_hardirqs_off_caller+0xbb/0x310
[  398.127875]  ? trace_hardirqs_on_caller+0xc0/0x310
[  398.132815]  ? syscall_return_slowpath+0x5e0/0x5e0
[  398.137755]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  398.142657]  ? trace_hardirqs_on_caller+0x310/0x310
[  398.147699]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  398.153165]  ? prepare_exit_to_usermode+0x291/0x3b0
[  398.158191]  ? page_fault+0x8/0x30
[  398.161743]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  398.166608]  ? page_fault+0x8/0x30
[  398.170160]  page_fault+0x1e/0x30
[  398.173665] RIP: 0033:0x40f9c0
[  398.176880] Code: Bad RIP value.
[  398.180253] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  398.185628] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  398.192904] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  398.200181] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  398.207457] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  398.214788] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  398.222139] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  398.222145] warn_alloc_show_mem: 1 callbacks suppressed
[  398.222152] Mem-Info:
[  398.228964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  398.234344] active_anon:54833 inactive_anon:712 isolated_anon:0
[  398.234344]  active_file:11 inactive_file:12 isolated_file:0
[  398.234344]  unevictable:0 dirty:0 writeback:0 unstable:0
[  398.234344]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  398.234344]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  398.234344]  free:13768 free_pcp:742 free_cma:0
[  398.236727] Call Trace:
[  398.246130] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  398.279042]  dump_stack+0x244/0x39d
[  398.281613] 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
[  398.309202]  ? dump_stack_print_info.cold.1+0x20/0x20
[  398.312810] lowmem_reserve[]: 0 2818 6321 6321
[  398.338928]  warn_alloc.cold.116+0xb7/0x1bd
[  398.344099] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  398.348687]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  398.352990] lowmem_reserve[]: 0 0 3503 3503
[  398.380773]  ? lock_downgrade+0x900/0x900
[  398.385606] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  398.389932]  ? trace_hardirqs_off+0xb8/0x310
[  398.394062] lowmem_reserve[]: 0 0 0 0
[  398.423213]  ? trace_hardirqs_off+0xb8/0x310
[  398.427607] 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
[  398.431416]  __alloc_pages_slowpath+0x26e8/0x2e10
[  398.435806] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  398.449357]  ? warn_alloc+0x120/0x120
[  398.454164] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  398.469906]  ? warn_alloc+0x120/0x120
[  398.473703] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  398.489064]  ? warn_alloc+0x120/0x120
[  398.492854] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  398.501685]  ? print_usage_bug+0xc0/0xc0
[  398.505472] 782 total pagecache pages
[  398.514059]  ? check_preemption_disabled+0x48/0x280
[  398.518109] 0 pages in swap cache
[  398.521903]  ? print_usage_bug+0xc0/0xc0
[  398.526907] Swap cache stats: add 0, delete 0, find 0/0
[  398.530359]  ? kasan_check_read+0x11/0x20
[  398.534406] Free swap  = 0kB
[  398.539771]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.543904] Total swap = 0kB
[  398.543913] 1965979 pages RAM
[  398.546934]  ? rcu_softirq_qs+0x20/0x20
[  398.552197] 0 pages HighMem/MovableOnly
[  398.555223]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.558316] 342853 pages reserved
[  398.562296]  ? should_fail+0x22d/0xd01
[  398.566252] 0 pages cma reserved
[  398.571795]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  398.575289] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  398.579154]  ? __lock_acquire+0x62f/0x4c20
[  398.582594] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  398.587620]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  398.594102] syz-fuzzer cpuset=/ mems_allowed=0
[  398.598336]  ? __lock_acquire+0x62f/0x4c20
[  398.598352]  ? should_fail+0x22d/0xd01
[  398.626355]  ? mark_held_locks+0x130/0x130
[  398.630600]  ? mark_held_locks+0x130/0x130
[  398.634860]  ? __enqueue_entity+0x10d/0x1f0
[  398.639196]  ? zap_class+0x640/0x640
[  398.642917]  ? print_usage_bug+0xc0/0xc0
[  398.646992]  ? enqueue_entity+0x34b/0x20a0
[  398.651259]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.656810]  ? check_preemption_disabled+0x48/0x280
[  398.661844]  ? __lock_is_held+0xb5/0x140
[  398.665923]  __alloc_pages_nodemask+0xa80/0xde0
[  398.670602]  ? zap_class+0x640/0x640
[  398.674331]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  398.679369]  ? find_held_lock+0x36/0x1c0
[  398.683447]  ? ____cache_alloc_node+0x1c7/0x1e0
[  398.688125]  ? lock_downgrade+0x900/0x900
[  398.692297]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.697852]  cache_grow_begin+0xa5/0x8c0
[  398.701919]  ? do_raw_spin_unlock+0xa7/0x330
[  398.706344]  fallback_alloc+0x204/0x2e0
[  398.710334]  ____cache_alloc_node+0x1c7/0x1e0
[  398.714846]  kmem_cache_alloc_node+0xe3/0x730
[  398.719353]  ? ipv6_get_ifaddr+0x42e/0x620
[  398.723613]  __alloc_skb+0x119/0x770
[  398.727339]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.732631]  ? netdev_alloc_frag+0x1f0/0x1f0
[  398.737057]  ? lock_downgrade+0x900/0x900
[  398.741222]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.746768]  ? refcount_sub_and_test_checked+0x203/0x310
[  398.752234]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  398.757692]  ? addrconf_rs_timer+0x690/0x690
[  398.762128]  ndisc_alloc_skb+0x144/0x340
[  398.766207]  ndisc_send_rs+0x331/0x6e0
[  398.770122]  addrconf_rs_timer+0x314/0x690
[  398.774375]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  398.778709]  call_timer_fn+0x272/0x920
[  398.782606]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  398.786849]  ? process_timeout+0x40/0x40
[  398.790927]  ? __run_timers+0x7da/0xc70
[  398.794914]  ? _raw_spin_unlock_irq+0x27/0x80
[  398.799600]  ? _raw_spin_unlock_irq+0x27/0x80
[  398.804119]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  398.808371]  ? lockdep_hardirqs_on+0x296/0x5b0
[  398.812964]  ? trace_hardirqs_on+0xbd/0x310
[  398.817301]  ? kasan_check_read+0x11/0x20
[  398.821543]  ? __run_timers+0x7da/0xc70
[  398.825533]  ? trace_hardirqs_off_caller+0x310/0x310
[  398.830661]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  398.834908]  __run_timers+0x7e5/0xc70
[  398.838727]  ? timer_fixup_init+0x70/0x70
[  398.842929]  ? _raw_spin_unlock_irq+0x27/0x80
[  398.847433]  ? _raw_spin_unlock_irq+0x27/0x80
[  398.851942]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  398.856534]  ? trace_hardirqs_on+0xbd/0x310
[  398.860863]  ? kasan_check_read+0x11/0x20
[  398.865038]  ? finish_task_switch+0x1f4/0x910
[  398.869548]  ? trace_hardirqs_off_caller+0x310/0x310
[  398.874662]  ? compat_start_thread+0x80/0x80
[  398.879112]  ? pvclock_read_flags+0x160/0x160
[  398.883618]  ? __switch_to_asm+0x34/0x70
[  398.887702]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.893251]  ? check_preemption_disabled+0x48/0x280
[  398.898302]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  398.903855]  ? rcu_pm_notify+0xc0/0xc0
[  398.907756]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.913310]  ? check_preemption_disabled+0x48/0x280
[  398.918388]  run_timer_softirq+0x52/0xb0
[  398.922458]  ? rcu_read_lock_sched_held+0x14f/0x180
[  398.927484]  __do_softirq+0x308/0xb7e
[  398.931300]  ? retint_kernel+0x2d/0x2d
[  398.935205]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  398.940318]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  398.945821]  ? trace_hardirqs_on+0x310/0x310
[  398.950248]  ? schedule+0x108/0x460
[  398.953892]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  398.958754]  ? trace_hardirqs_off+0xb8/0x310
[  398.963173]  ? smpboot_thread_fn+0x68b/0xa00
[  398.967593]  ? trace_hardirqs_on+0x310/0x310
[  398.972029]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.977582]  ? check_preemption_disabled+0x48/0x280
[  398.982655]  ? takeover_tasklets+0xa90/0xa90
[  398.987081]  run_ksoftirqd+0x5e/0x100
[  398.990890]  smpboot_thread_fn+0x68b/0xa00
[  398.995141]  ? sort_range+0x30/0x30
[  398.998920]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  399.004056]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.009609]  ? __kthread_parkme+0xfb/0x1a0
[  399.013864]  ? sort_range+0x30/0x30
[  399.017502]  kthread+0x35a/0x440
[  399.020882]  ? kthread_stop+0x900/0x900
[  399.024870]  ret_from_fork+0x3a/0x50
[  399.028613] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  399.028691] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  399.035555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  399.035560] Call Trace:
[  399.035567]  <IRQ>
[  399.035582]  dump_stack+0x244/0x39d
[  399.035602]  ? dump_stack_print_info.cold.1+0x20/0x20
[  399.042221] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  399.051512]  warn_alloc.cold.116+0xb7/0x1bd
[  399.054126] ksoftirqd/0 cpuset=/ mems_allowed=0
[  399.056291]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  399.089305]  ? lock_downgrade+0x900/0x900
[  399.093479]  ? trace_hardirqs_off+0xb8/0x310
[  399.097945]  ? trace_hardirqs_off+0xb8/0x310
[  399.102414]  __alloc_pages_slowpath+0x26e8/0x2e10
[  399.107298]  ? warn_alloc+0x120/0x120
[  399.111114]  ? print_usage_bug+0xc0/0xc0
[  399.115188]  ? warn_alloc+0x120/0x120
[  399.119020]  ? warn_alloc+0x120/0x120
[  399.122835]  ? print_usage_bug+0xc0/0xc0
[  399.126951]  ? kvm_clock_read+0x18/0x30
[  399.130938]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  399.135966]  ? print_usage_bug+0xc0/0xc0
[  399.140077]  ? __lock_acquire+0x62f/0x4c20
[  399.144357]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.149948]  ? should_fail+0x22d/0xd01
[  399.153845]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.159134]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  399.164248]  ? __lock_acquire+0x62f/0x4c20
[  399.168501]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  399.173614]  ? __lock_acquire+0x62f/0x4c20
[  399.177901]  ? should_fail+0x22d/0xd01
[  399.181799]  ? rcu_irq_exit+0x1a2/0x390
[  399.185801]  ? mark_held_locks+0x130/0x130
[  399.190061]  ? mark_held_locks+0x130/0x130
[  399.194312]  ? mark_held_locks+0xc7/0x130
[  399.198513]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  399.203542]  ? zap_class+0x640/0x640
[  399.207267]  ? print_usage_bug+0xc0/0xc0
[  399.211341]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.216891]  ? check_preemption_disabled+0x48/0x280
[  399.221970]  ? __lock_is_held+0xb5/0x140
[  399.226069]  __alloc_pages_nodemask+0xa80/0xde0
[  399.230758]  ? zap_class+0x640/0x640
[  399.234493]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  399.239575]  ? find_held_lock+0x36/0x1c0
[  399.243657]  ? ____cache_alloc_node+0x1c7/0x1e0
[  399.248338]  ? lock_downgrade+0x900/0x900
[  399.252505]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.258064]  cache_grow_begin+0xa5/0x8c0
[  399.262137]  ? do_raw_spin_unlock+0xa7/0x330
[  399.266565]  fallback_alloc+0x204/0x2e0
[  399.270552]  ____cache_alloc_node+0x1c7/0x1e0
[  399.275067]  kmem_cache_alloc_node+0xe3/0x730
[  399.279621]  ? ipv6_get_ifaddr+0x42e/0x620
[  399.283882]  __alloc_skb+0x119/0x770
[  399.287620]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.292909]  ? netdev_alloc_frag+0x1f0/0x1f0
[  399.297327]  ? lock_downgrade+0x900/0x900
[  399.301529]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.307078]  ? refcount_sub_and_test_checked+0x203/0x310
[  399.312556]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  399.318034]  ? addrconf_rs_timer+0x690/0x690
[  399.322477]  ndisc_alloc_skb+0x144/0x340
[  399.326552]  ndisc_send_rs+0x331/0x6e0
[  399.330456]  addrconf_rs_timer+0x314/0x690
[  399.334709]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.339024]  call_timer_fn+0x272/0x920
[  399.342926]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.347171]  ? process_timeout+0x40/0x40
[  399.351372]  ? mark_held_locks+0xc7/0x130
[  399.355577]  ? _raw_spin_unlock_irq+0x27/0x80
[  399.360084]  ? _raw_spin_unlock_irq+0x27/0x80
[  399.364588]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.368836]  ? lockdep_hardirqs_on+0x296/0x5b0
[  399.373476]  ? trace_hardirqs_on+0xbd/0x310
[  399.377809]  ? kasan_check_read+0x11/0x20
[  399.382025]  ? __run_timers+0x7da/0xc70
[  399.386034]  ? trace_hardirqs_off_caller+0x310/0x310
[  399.391160]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.395414]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.399657]  __run_timers+0x7e5/0xc70
[  399.403480]  ? timer_fixup_init+0x70/0x70
[  399.407650]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  399.412732]  ? zap_class+0x640/0x640
[  399.416460]  ? print_usage_bug+0xc0/0xc0
[  399.420534]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  399.425792]  ? find_held_lock+0x36/0x1c0
[  399.429873]  ? zap_class+0x640/0x640
[  399.433604]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.439196]  ? check_preemption_disabled+0x48/0x280
[  399.444234]  ? __lock_is_held+0xb5/0x140
[  399.448351]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.453899]  ? check_preemption_disabled+0x48/0x280
[  399.458930]  run_timer_softirq+0x52/0xb0
[  399.463021]  ? rcu_read_lock_sched_held+0x14f/0x180
[  399.468060]  __do_softirq+0x308/0xb7e
[  399.471871]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  399.476378]  ? lock_downgrade+0x900/0x900
[  399.480539]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  399.485662]  ? pvclock_read_flags+0x160/0x160
[  399.490169]  ? lapic_next_event+0x5a/0x90
[  399.494327]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.499879]  ? kvm_clock_read+0x18/0x30
[  399.503864]  ? kvm_sched_clock_read+0x9/0x20
[  399.508288]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.513836]  ? check_preemption_disabled+0x48/0x280
[  399.518869]  irq_exit+0x17f/0x1c0
[  399.522331]  smp_apic_timer_interrupt+0x1cb/0x760
[  399.527183]  ? smp_call_function_single_interrupt+0x159/0x650
[  399.533078]  ? smp_call_function_single_interrupt+0x650/0x650
[  399.538967]  ? interrupt_entry+0xb5/0xc0
[  399.543063]  ? trace_hardirqs_off_caller+0xbb/0x310
[  399.548093]  ? trace_hardirqs_off_caller+0xbb/0x310
[  399.553120]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  399.557974]  ? trace_hardirqs_on_caller+0x310/0x310
[  399.563036]  ? trace_hardirqs_on_caller+0x310/0x310
[  399.568063]  ? task_prio+0x50/0x50
[  399.571615]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.577163]  ? check_preemption_disabled+0x48/0x280
[  399.582195]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  399.587058]  apic_timer_interrupt+0xf/0x20
[  399.591296]  </IRQ>
[  399.593543] RIP: 0010:dump_stack+0x358/0x39d
[  399.597959] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  399.616868] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  399.624585] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  399.631861] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  399.639139] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  399.646412] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  399.653686] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  399.660977]  ? dump_stack+0x34f/0x39d
[  399.664815]  ? dump_stack_print_info.cold.1+0x20/0x20
[  399.670225]  ? mark_held_locks+0x130/0x130
[  399.674470]  ? mark_held_locks+0x130/0x130
[  399.678721]  dump_header+0x27b/0xf72
[  399.682456]  ? pagefault_out_of_memory+0x197/0x197
[  399.687402]  ? __lock_acquire+0x62f/0x4c20
[  399.691654]  ? percpu_ref_get_many+0x240/0x240
[  399.696253]  ? print_usage_bug+0xc0/0xc0
[  399.700332]  ? zap_class+0x640/0x640
[  399.704062]  ? print_usage_bug+0xc0/0xc0
[  399.708131]  ? print_usage_bug+0xc0/0xc0
[  399.712205]  ? zap_class+0x640/0x640
[  399.715932]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.721486]  ? find_held_lock+0x36/0x1c0
[  399.725569]  ? mark_held_locks+0xc7/0x130
[  399.729726]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  399.734837]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  399.739949]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  399.744543]  ? trace_hardirqs_on+0xbd/0x310
[  399.748877]  ? kasan_check_read+0x11/0x20
[  399.753051]  ? ___ratelimit+0x3b4/0x672
[  399.757053]  ? trace_hardirqs_off_caller+0x310/0x310
[  399.762170]  ? trace_hardirqs_on+0x310/0x310
[  399.766590]  ? lock_downgrade+0x900/0x900
[  399.770752]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  399.775873]  ? ___ratelimit+0x3b9/0x672
[  399.779858]  ? idr_get_free+0xf70/0xf70
[  399.783843]  ? find_held_lock+0x36/0x1c0
[  399.787926]  oom_kill_process.cold.27+0x10/0x903
[  399.792690]  ? zap_class+0x640/0x640
[  399.796414]  ? check_preemption_disabled+0x48/0x280
[  399.801440]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  399.806376]  ? kasan_check_read+0x11/0x20
[  399.810532]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.815820]  ? oom_evaluate_task+0x540/0x540
[  399.820243]  ? find_held_lock+0x36/0x1c0
[  399.824319]  ? out_of_memory+0x974/0x1430
[  399.828475]  ? lock_downgrade+0x900/0x900
[  399.832631]  ? check_preemption_disabled+0x48/0x280
[  399.837661]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  399.842599]  ? kasan_check_read+0x11/0x20
[  399.846757]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.852056]  ? rcu_softirq_qs+0x20/0x20
[  399.856055]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.861602]  ? oom_evaluate_task+0x302/0x540
[  399.866040]  out_of_memory+0xa84/0x1430
[  399.870049]  ? oom_killer_disable+0x3a0/0x3a0
[  399.874554]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  399.879495]  ? __ww_mutex_check_waiters+0x160/0x160
[  399.884530]  __alloc_pages_slowpath+0x2354/0x2e10
[  399.889409]  ? warn_alloc+0x120/0x120
[  399.893227]  ? mark_held_locks+0x130/0x130
[  399.897475]  ? find_get_entry+0xaae/0x1120
[  399.901729]  ? filemap_map_pages+0x1a20/0x1a20
[  399.906328]  ? zap_class+0x640/0x640
[  399.910062]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.915609]  ? check_preemption_disabled+0x48/0x280
[  399.920707]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.926255]  ? should_fail+0x22d/0xd01
[  399.930155]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  399.935275]  ? zap_class+0x640/0x640
[  399.939044]  ? __lock_is_held+0xb5/0x140
[  399.943130]  ? mark_held_locks+0x130/0x130
[  399.947378]  ? lock_release+0xa00/0xa00
[  399.951362]  ? perf_trace_sched_process_exec+0x860/0x860
[  399.956821]  ? xa_load+0x2ba/0x460
[  399.960372]  ? lock_downgrade+0x900/0x900
[  399.964534]  ? __might_sleep+0x95/0x190
[  399.968535]  __alloc_pages_nodemask+0xa80/0xde0
[  399.973219]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  399.978245]  ? __page_cache_alloc+0x191/0x5c0
[  399.982748]  ? xa_load+0x2e1/0x460
[  399.986304]  ? xa_clear_mark+0x40/0x40
[  399.990202]  ? zap_class+0x640/0x640
[  399.993937]  ? zap_class+0x640/0x640
[  399.997659]  ? zap_class+0x640/0x640
[  400.001384]  ? __do_page_cache_readahead+0x663/0x810
[  400.006503]  ? find_held_lock+0x36/0x1c0
[  400.010587]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  400.016138]  alloc_pages_current+0x173/0x350
[  400.020562]  __page_cache_alloc+0x38c/0x5c0
[  400.024907]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  400.029846]  ? kasan_check_read+0x11/0x20
[  400.034016]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.039311]  ? generic_perform_write+0x6a0/0x6a0
[  400.044079]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.049626]  ? check_preemption_disabled+0x48/0x280
[  400.054659]  filemap_fault+0x1595/0x25f0
[  400.058740]  ? __lock_page_or_retry+0xa00/0xa00
[  400.063427]  ? mark_held_locks+0x130/0x130
[  400.067681]  ? filemap_map_pages+0xd6b/0x1a20
[  400.072187]  ? lock_downgrade+0x900/0x900
[  400.076344]  ? check_preemption_disabled+0x48/0x280
[  400.081378]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  400.086315]  ? kasan_check_read+0x11/0x20
[  400.090474]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.095758]  ? rcu_softirq_qs+0x20/0x20
[  400.099762]  ? filemap_map_pages+0xd92/0x1a20
[  400.104285]  ? find_get_entries_tag+0x1400/0x1400
[  400.109142]  ? debug_object_destroy+0x2b0/0x2b0
[  400.113822]  ? lock_pi_update_atomic+0x150/0x150
[  400.118588]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.124148]  ? lock_acquire+0x1ed/0x520
[  400.128129]  ? ext4_filemap_fault+0x7a/0xad
[  400.132460]  ? lock_release+0xa00/0xa00
[  400.136441]  ? perf_trace_sched_process_exec+0x860/0x860
[  400.141906]  ? print_usage_bug+0xc0/0xc0
[  400.145979]  ? print_usage_bug+0xc0/0xc0
[  400.150088]  ? down_read+0x8d/0x120
[  400.153725]  ? ext4_filemap_fault+0x7a/0xad
[  400.158060]  ? __down_interruptible+0x700/0x700
[  400.162746]  ext4_filemap_fault+0x82/0xad
[  400.166908]  __do_fault+0x100/0x6b0
[  400.170549]  ? pmd_devmap_trans_unstable+0x220/0x220
[  400.175674]  ? mark_held_locks+0x130/0x130
[  400.179925]  ? mark_held_locks+0x130/0x130
[  400.184172]  ? debug_smp_processor_id+0x1c/0x20
[  400.188850]  ? perf_trace_lock+0x14d/0x7a0
[  400.193100]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.198656]  __handle_mm_fault+0x3ea0/0x5be0
[  400.203086]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  400.207939]  ? lock_is_held_type+0x210/0x210
[  400.212362]  ? ksys_dup3+0x680/0x680
[  400.216101]  ? zap_class+0x640/0x640
[  400.219824]  ? zap_class+0x640/0x640
[  400.223546]  ? __x64_sys_futex+0x53e/0x6a0
[  400.227800]  ? find_held_lock+0x36/0x1c0
[  400.231880]  ? handle_mm_fault+0x42a/0xc70
[  400.236128]  ? lock_downgrade+0x900/0x900
[  400.240285]  ? check_preemption_disabled+0x48/0x280
[  400.245328]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  400.250265]  ? kasan_check_read+0x11/0x20
[  400.254419]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.259703]  ? rcu_softirq_qs+0x20/0x20
[  400.263731]  ? trace_hardirqs_off_caller+0x310/0x310
[  400.268851]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.274418]  ? check_preemption_disabled+0x48/0x280
[  400.279452]  handle_mm_fault+0x54f/0xc70
[  400.283529]  ? __handle_mm_fault+0x5be0/0x5be0
[  400.288127]  ? find_vma+0x34/0x190
[  400.291684]  __do_page_fault+0x5e8/0xe60
[  400.295756]  ? trace_hardirqs_off+0xb8/0x310
[  400.300191]  do_page_fault+0xf2/0x7e0
[  400.304023]  ? vmalloc_sync_all+0x30/0x30
[  400.308181]  ? error_entry+0x70/0xd0
[  400.311908]  ? trace_hardirqs_off_caller+0xbb/0x310
[  400.316933]  ? trace_hardirqs_on_caller+0xc0/0x310
[  400.321921]  ? syscall_return_slowpath+0x5e0/0x5e0
[  400.326865]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.331718]  ? trace_hardirqs_on_caller+0x310/0x310
[  400.336807]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  400.342273]  ? prepare_exit_to_usermode+0x291/0x3b0
[  400.347299]  ? page_fault+0x8/0x30
[  400.350854]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.355707]  ? page_fault+0x8/0x30
[  400.359305]  page_fault+0x1e/0x30
[  400.362766] RIP: 0033:0x40f9c0
[  400.366023] Code: Bad RIP value.
[  400.369431] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  400.374800] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  400.382511] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  400.389804] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  400.397079] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  400.404354] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  400.411672] warn_alloc_show_mem: 1 callbacks suppressed
[  400.411684] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  400.411686] Mem-Info:
[  400.411717] active_anon:54833 inactive_anon:712 isolated_anon:0
[  400.411717]  active_file:11 inactive_file:12 isolated_file:0
[  400.411717]  unevictable:0 dirty:0 writeback:0 unstable:0
[  400.411717]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  400.411717]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  400.411717]  free:13768 free_pcp:742 free_cma:0
[  400.417066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  400.423834] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  400.426240] Call Trace:
[  400.459117] 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
[  400.468478]  dump_stack+0x244/0x39d
[  400.496046] lowmem_reserve[]: 0 2818 6321 6321
[  400.498639]  ? dump_stack_print_info.cold.1+0x20/0x20
[  400.524736] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  400.528376]  warn_alloc.cold.116+0xb7/0x1bd
[  400.532937] lowmem_reserve[]: 0 0 3503 3503
[  400.538134]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  400.565917] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  400.570246]  ? lock_downgrade+0x900/0x900
[  400.574539] lowmem_reserve[]: 0 0 0 0
[  400.579399]  ? trace_hardirqs_off+0xb8/0x310
[  400.608524] 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
[  400.612686]  ? trace_hardirqs_off+0xb8/0x310
[  400.616470] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  400.620888]  __alloc_pages_slowpath+0x26e8/0x2e10
[  400.634436] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  400.638867]  ? warn_alloc+0x120/0x120
[  400.654530] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  400.659369]  ? print_usage_bug+0xc0/0xc0
[  400.674703] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  400.678547]  ? warn_alloc+0x120/0x120
[  400.687368] 782 total pagecache pages
[  400.691428]  ? warn_alloc+0x120/0x120
[  400.699994] 0 pages in swap cache
[  400.703808]  ? print_usage_bug+0xc0/0xc0
[  400.707614] Swap cache stats: add 0, delete 0, find 0/0
[  400.711429]  ? print_usage_bug+0xc0/0xc0
[  400.714865] Free swap  = 0kB
[  400.718941]  ? __lock_acquire+0x62f/0x4c20
[  400.724290] Total swap = 0kB
[  400.728360]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.731365] 1965979 pages RAM
[  400.735602]  ? should_fail+0x22d/0xd01
[  400.738607] 0 pages HighMem/MovableOnly
[  400.744147]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  400.747286] 342853 pages reserved
[  400.751180]  ? __lock_acquire+0x62f/0x4c20
[  400.755138] 0 pages cma reserved
[  400.760244]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  400.763747] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  400.767912]  ? __lock_acquire+0x62f/0x4c20
[  400.767928]  ? should_fail+0x22d/0xd01
[  400.771373] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  400.776395]  ? find_held_lock+0x36/0x1c0
[  400.782874] syz-fuzzer cpuset=/ mems_allowed=0
[  400.787116]  ? mark_held_locks+0x130/0x130
[  400.814402]  ? mark_held_locks+0x130/0x130
[  400.818645]  ? zap_class+0x640/0x640
[  400.822377]  ? mark_held_locks+0xc7/0x130
[  400.826531]  ? do_raw_spin_unlock+0xa7/0x330
[  400.830952]  ? zap_class+0x640/0x640
[  400.834677]  ? print_usage_bug+0xc0/0xc0
[  400.838755]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.844304]  ? check_preemption_disabled+0x48/0x280
[  400.849345]  ? __lock_is_held+0xb5/0x140
[  400.853421]  __alloc_pages_nodemask+0xa80/0xde0
[  400.858100]  ? zap_class+0x640/0x640
[  400.861828]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  400.866868]  ? find_held_lock+0x36/0x1c0
[  400.870949]  ? ____cache_alloc_node+0x1c7/0x1e0
[  400.875638]  ? lock_downgrade+0x900/0x900
[  400.879815]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.885377]  cache_grow_begin+0xa5/0x8c0
[  400.889452]  ? do_raw_spin_unlock+0xa7/0x330
[  400.893876]  fallback_alloc+0x204/0x2e0
[  400.897867]  ____cache_alloc_node+0x1c7/0x1e0
[  400.902378]  kmem_cache_alloc_node+0xe3/0x730
[  400.906893]  ? ipv6_get_ifaddr+0x42e/0x620
[  400.911152]  __alloc_skb+0x119/0x770
[  400.914876]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.920168]  ? netdev_alloc_frag+0x1f0/0x1f0
[  400.924588]  ? lock_downgrade+0x900/0x900
[  400.928751]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.934303]  ? refcount_sub_and_test_checked+0x203/0x310
[  400.939782]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  400.945240]  ? addrconf_rs_timer+0x690/0x690
[  400.949677]  ndisc_alloc_skb+0x144/0x340
[  400.953755]  ndisc_send_rs+0x331/0x6e0
[  400.957661]  addrconf_rs_timer+0x314/0x690
[  400.961911]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.966166]  call_timer_fn+0x272/0x920
[  400.970067]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.974313]  ? process_timeout+0x40/0x40
[  400.978391]  ? __run_timers+0x7da/0xc70
[  400.982390]  ? _raw_spin_unlock_irq+0x27/0x80
[  400.986894]  ? _raw_spin_unlock_irq+0x27/0x80
[  400.991393]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.995641]  ? lockdep_hardirqs_on+0x296/0x5b0
[  401.000234]  ? trace_hardirqs_on+0xbd/0x310
[  401.004568]  ? kasan_check_read+0x11/0x20
[  401.008721]  ? __run_timers+0x7da/0xc70
[  401.012706]  ? trace_hardirqs_off_caller+0x310/0x310
[  401.017866]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.022117]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.026363]  __run_timers+0x7e5/0xc70
[  401.030183]  ? timer_fixup_init+0x70/0x70
[  401.034339]  ? _raw_spin_unlock_irq+0x27/0x80
[  401.038843]  ? _raw_spin_unlock_irq+0x27/0x80
[  401.043369]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  401.047964]  ? trace_hardirqs_on+0xbd/0x310
[  401.052310]  ? kasan_check_read+0x11/0x20
[  401.056520]  ? finish_task_switch+0x1f4/0x910
[  401.061045]  ? trace_hardirqs_off_caller+0x310/0x310
[  401.066159]  ? compat_start_thread+0x80/0x80
[  401.070602]  ? pvclock_read_flags+0x160/0x160
[  401.075105]  ? __switch_to_asm+0x34/0x70
[  401.079182]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.084730]  ? check_preemption_disabled+0x48/0x280
[  401.089764]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  401.095317]  ? rcu_pm_notify+0xc0/0xc0
[  401.099218]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.104765]  ? check_preemption_disabled+0x48/0x280
[  401.109796]  run_timer_softirq+0x52/0xb0
[  401.113867]  ? rcu_read_lock_sched_held+0x14f/0x180
[  401.118895]  __do_softirq+0x308/0xb7e
[  401.122710]  ? retint_kernel+0x2d/0x2d
[  401.126611]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  401.131721]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  401.137181]  ? trace_hardirqs_on+0x310/0x310
[  401.141606]  ? schedule+0x108/0x460
[  401.145241]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  401.150038]  ? trace_hardirqs_off+0xb8/0x310
[  401.154459]  ? smpboot_thread_fn+0x68b/0xa00
[  401.158882]  ? trace_hardirqs_on+0x310/0x310
[  401.163304]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.168851]  ? check_preemption_disabled+0x48/0x280
[  401.173881]  ? takeover_tasklets+0xa90/0xa90
[  401.178306]  run_ksoftirqd+0x5e/0x100
[  401.182120]  smpboot_thread_fn+0x68b/0xa00
[  401.186371]  ? sort_range+0x30/0x30
[  401.190024]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  401.195143]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.200690]  ? __kthread_parkme+0xfb/0x1a0
[  401.204936]  ? sort_range+0x30/0x30
[  401.208573]  kthread+0x35a/0x440
[  401.211948]  ? kthread_stop+0x900/0x900
[  401.215933]  ret_from_fork+0x3a/0x50
[  401.219678] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  401.219750] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  401.226616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  401.226625] Call Trace:
[  401.233215] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  401.242482]  <IRQ>
[  401.245064] ksoftirqd/0 cpuset=/ mems_allowed=0
[  401.255380]  dump_stack+0x244/0x39d
[  401.265897]  ? dump_stack_print_info.cold.1+0x20/0x20
[  401.271113]  warn_alloc.cold.116+0xb7/0x1bd
[  401.275448]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  401.280306]  ? lock_downgrade+0x900/0x900
[  401.284470]  ? trace_hardirqs_off+0xb8/0x310
[  401.288896]  ? trace_hardirqs_off+0xb8/0x310
[  401.293321]  __alloc_pages_slowpath+0x26e8/0x2e10
[  401.298210]  ? warn_alloc+0x120/0x120
[  401.302039]  ? print_usage_bug+0xc0/0xc0
[  401.306115]  ? warn_alloc+0x120/0x120
[  401.309928]  ? warn_alloc+0x120/0x120
[  401.313737]  ? print_usage_bug+0xc0/0xc0
[  401.317843]  ? kvm_clock_read+0x18/0x30
[  401.321827]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  401.326858]  ? print_usage_bug+0xc0/0xc0
[  401.330932]  ? __lock_acquire+0x62f/0x4c20
[  401.335182]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.340731]  ? should_fail+0x22d/0xd01
[  401.344625]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  401.349916]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  401.355073]  ? __lock_acquire+0x62f/0x4c20
[  401.359322]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  401.364430]  ? __lock_acquire+0x62f/0x4c20
[  401.368673]  ? should_fail+0x22d/0xd01
[  401.372567]  ? rcu_irq_exit+0x1a2/0x390
[  401.376591]  ? mark_held_locks+0x130/0x130
[  401.380843]  ? mark_held_locks+0x130/0x130
[  401.385093]  ? mark_held_locks+0xc7/0x130
[  401.389252]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  401.394279]  ? zap_class+0x640/0x640
[  401.398026]  ? print_usage_bug+0xc0/0xc0
[  401.402105]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.407656]  ? check_preemption_disabled+0x48/0x280
[  401.412692]  ? __lock_is_held+0xb5/0x140
[  401.416777]  __alloc_pages_nodemask+0xa80/0xde0
[  401.421458]  ? zap_class+0x640/0x640
[  401.425187]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  401.430223]  ? find_held_lock+0x36/0x1c0
[  401.434306]  ? ____cache_alloc_node+0x1c7/0x1e0
[  401.438985]  ? lock_downgrade+0x900/0x900
[  401.443168]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.448723]  cache_grow_begin+0xa5/0x8c0
[  401.452797]  ? do_raw_spin_unlock+0xa7/0x330
[  401.457227]  fallback_alloc+0x204/0x2e0
[  401.461219]  ____cache_alloc_node+0x1c7/0x1e0
[  401.465729]  kmem_cache_alloc_node+0xe3/0x730
[  401.470234]  ? ipv6_get_ifaddr+0x42e/0x620
[  401.474488]  __alloc_skb+0x119/0x770
[  401.478209]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  401.483501]  ? netdev_alloc_frag+0x1f0/0x1f0
[  401.487918]  ? lock_downgrade+0x900/0x900
[  401.492086]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.497633]  ? refcount_sub_and_test_checked+0x203/0x310
[  401.503098]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  401.508560]  ? addrconf_rs_timer+0x690/0x690
[  401.512994]  ndisc_alloc_skb+0x144/0x340
[  401.517092]  ndisc_send_rs+0x331/0x6e0
[  401.520995]  addrconf_rs_timer+0x314/0x690
[  401.525266]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.529535]  call_timer_fn+0x272/0x920
[  401.533429]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.537670]  ? process_timeout+0x40/0x40
[  401.541752]  ? mark_held_locks+0xc7/0x130
[  401.545914]  ? _raw_spin_unlock_irq+0x27/0x80
[  401.550417]  ? _raw_spin_unlock_irq+0x27/0x80
[  401.554921]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.559168]  ? lockdep_hardirqs_on+0x296/0x5b0
[  401.563760]  ? trace_hardirqs_on+0xbd/0x310
[  401.568102]  ? kasan_check_read+0x11/0x20
[  401.572260]  ? __run_timers+0x7da/0xc70
[  401.576249]  ? trace_hardirqs_off_caller+0x310/0x310
[  401.581366]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.585615]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.589857]  __run_timers+0x7e5/0xc70
[  401.593678]  ? timer_fixup_init+0x70/0x70
[  401.597839]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  401.602865]  ? zap_class+0x640/0x640
[  401.606597]  ? print_usage_bug+0xc0/0xc0
[  401.610669]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  401.615875]  ? find_held_lock+0x36/0x1c0
[  401.619953]  ? zap_class+0x640/0x640
[  401.623859]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.629407]  ? check_preemption_disabled+0x48/0x280
[  401.634445]  ? __lock_is_held+0xb5/0x140
[  401.638517]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.644065]  ? check_preemption_disabled+0x48/0x280
[  401.649097]  run_timer_softirq+0x52/0xb0
[  401.653176]  ? rcu_read_lock_sched_held+0x14f/0x180
[  401.658245]  __do_softirq+0x308/0xb7e
[  401.662067]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  401.666570]  ? lock_downgrade+0x900/0x900
[  401.670933]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  401.676061]  ? pvclock_read_flags+0x160/0x160
[  401.680567]  ? lapic_next_event+0x5a/0x90
[  401.684731]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.690283]  ? kvm_clock_read+0x18/0x30
[  401.694271]  ? kvm_sched_clock_read+0x9/0x20
[  401.698689]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.704235]  ? check_preemption_disabled+0x48/0x280
[  401.709270]  irq_exit+0x17f/0x1c0
[  401.712732]  smp_apic_timer_interrupt+0x1cb/0x760
[  401.717586]  ? smp_call_function_single_interrupt+0x159/0x650
[  401.723480]  ? smp_call_function_single_interrupt+0x650/0x650
[  401.729374]  ? interrupt_entry+0xb5/0xc0
[  401.733448]  ? trace_hardirqs_off_caller+0xbb/0x310
[  401.738484]  ? trace_hardirqs_off_caller+0xbb/0x310
[  401.743508]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.748361]  ? trace_hardirqs_on_caller+0x310/0x310
[  401.753384]  ? trace_hardirqs_on_caller+0x310/0x310
[  401.758422]  ? task_prio+0x50/0x50
[  401.761970]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.767534]  ? check_preemption_disabled+0x48/0x280
[  401.772565]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.777424]  apic_timer_interrupt+0xf/0x20
[  401.781661]  </IRQ>
[  401.783909] RIP: 0010:dump_stack+0x358/0x39d
[  401.788326] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  401.807238] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  401.814954] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  401.822231] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  401.829504] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  401.836780] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  401.844046] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  401.851338]  ? dump_stack+0x34f/0x39d
[  401.855153]  ? dump_stack_print_info.cold.1+0x20/0x20
[  401.860355]  ? mark_held_locks+0x130/0x130
[  401.864582]  ? mark_held_locks+0x130/0x130
[  401.868830]  dump_header+0x27b/0xf72
[  401.872548]  ? pagefault_out_of_memory+0x197/0x197
[  401.877495]  ? __lock_acquire+0x62f/0x4c20
[  401.881726]  ? percpu_ref_get_many+0x240/0x240
[  401.886325]  ? print_usage_bug+0xc0/0xc0
[  401.890415]  ? zap_class+0x640/0x640
[  401.894164]  ? print_usage_bug+0xc0/0xc0
[  401.898224]  ? print_usage_bug+0xc0/0xc0
[  401.902348]  ? zap_class+0x640/0x640
[  401.906064]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.911604]  ? find_held_lock+0x36/0x1c0
[  401.915689]  ? mark_held_locks+0xc7/0x130
[  401.919850]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  401.924953]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  401.930061]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  401.934644]  ? trace_hardirqs_on+0xbd/0x310
[  401.938969]  ? kasan_check_read+0x11/0x20
[  401.943124]  ? ___ratelimit+0x3b4/0x672
[  401.947098]  ? trace_hardirqs_off_caller+0x310/0x310
[  401.952204]  ? trace_hardirqs_on+0x310/0x310
[  401.956619]  ? lock_downgrade+0x900/0x900
[  401.960778]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  401.965879]  ? ___ratelimit+0x3b9/0x672
[  401.969854]  ? idr_get_free+0xf70/0xf70
[  401.973827]  ? find_held_lock+0x36/0x1c0
[  401.977898]  oom_kill_process.cold.27+0x10/0x903
[  401.982671]  ? zap_class+0x640/0x640
[  401.986418]  ? check_preemption_disabled+0x48/0x280
[  401.991455]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  401.996383]  ? kasan_check_read+0x11/0x20
[  402.000529]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.005813]  ? oom_evaluate_task+0x540/0x540
[  402.010228]  ? find_held_lock+0x36/0x1c0
[  402.014335]  ? out_of_memory+0x974/0x1430
[  402.018516]  ? lock_downgrade+0x900/0x900
[  402.022667]  ? check_preemption_disabled+0x48/0x280
[  402.027683]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  402.032625]  ? kasan_check_read+0x11/0x20
[  402.036788]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.042063]  ? rcu_softirq_qs+0x20/0x20
[  402.046034]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.051561]  ? oom_evaluate_task+0x302/0x540
[  402.055963]  out_of_memory+0xa84/0x1430
[  402.059948]  ? oom_killer_disable+0x3a0/0x3a0
[  402.064484]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  402.069414]  ? __ww_mutex_check_waiters+0x160/0x160
[  402.074456]  __alloc_pages_slowpath+0x2354/0x2e10
[  402.079333]  ? warn_alloc+0x120/0x120
[  402.083139]  ? mark_held_locks+0x130/0x130
[  402.087375]  ? find_get_entry+0xaae/0x1120
[  402.091616]  ? filemap_map_pages+0x1a20/0x1a20
[  402.096240]  ? zap_class+0x640/0x640
[  402.099970]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.105510]  ? check_preemption_disabled+0x48/0x280
[  402.110523]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.116052]  ? should_fail+0x22d/0xd01
[  402.119936]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.125039]  ? zap_class+0x640/0x640
[  402.128767]  ? __lock_is_held+0xb5/0x140
[  402.132851]  ? mark_held_locks+0x130/0x130
[  402.137086]  ? lock_release+0xa00/0xa00
[  402.141053]  ? perf_trace_sched_process_exec+0x860/0x860
[  402.146526]  ? xa_load+0x2ba/0x460
[  402.150075]  ? lock_downgrade+0x900/0x900
[  402.154219]  ? __might_sleep+0x95/0x190
[  402.158191]  __alloc_pages_nodemask+0xa80/0xde0
[  402.162861]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  402.167873]  ? __page_cache_alloc+0x191/0x5c0
[  402.172361]  ? xa_load+0x2e1/0x460
[  402.175896]  ? xa_clear_mark+0x40/0x40
[  402.179783]  ? zap_class+0x640/0x640
[  402.183496]  ? zap_class+0x640/0x640
[  402.187200]  ? zap_class+0x640/0x640
[  402.190921]  ? __do_page_cache_readahead+0x663/0x810
[  402.196024]  ? find_held_lock+0x36/0x1c0
[  402.200085]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  402.205636]  alloc_pages_current+0x173/0x350
[  402.210074]  __page_cache_alloc+0x38c/0x5c0
[  402.214404]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  402.219326]  ? kasan_check_read+0x11/0x20
[  402.223463]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.228733]  ? generic_perform_write+0x6a0/0x6a0
[  402.233513]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.239085]  ? check_preemption_disabled+0x48/0x280
[  402.244113]  filemap_fault+0x1595/0x25f0
[  402.248175]  ? __lock_page_or_retry+0xa00/0xa00
[  402.252865]  ? mark_held_locks+0x130/0x130
[  402.257098]  ? filemap_map_pages+0xd6b/0x1a20
[  402.261597]  ? lock_downgrade+0x900/0x900
[  402.265755]  ? check_preemption_disabled+0x48/0x280
[  402.270807]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  402.275794]  ? kasan_check_read+0x11/0x20
[  402.279972]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.285331]  ? rcu_softirq_qs+0x20/0x20
[  402.289326]  ? filemap_map_pages+0xd92/0x1a20
[  402.293844]  ? find_get_entries_tag+0x1400/0x1400
[  402.298698]  ? debug_object_destroy+0x2b0/0x2b0
[  402.303373]  ? lock_pi_update_atomic+0x150/0x150
[  402.308116]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.313656]  ? lock_acquire+0x1ed/0x520
[  402.317632]  ? ext4_filemap_fault+0x7a/0xad
[  402.321952]  ? lock_release+0xa00/0xa00
[  402.325922]  ? perf_trace_sched_process_exec+0x860/0x860
[  402.331366]  ? print_usage_bug+0xc0/0xc0
[  402.335462]  ? print_usage_bug+0xc0/0xc0
[  402.339526]  ? down_read+0x8d/0x120
[  402.343145]  ? ext4_filemap_fault+0x7a/0xad
[  402.347480]  ? __down_interruptible+0x700/0x700
[  402.352154]  ext4_filemap_fault+0x82/0xad
[  402.356316]  __do_fault+0x100/0x6b0
[  402.359974]  ? pmd_devmap_trans_unstable+0x220/0x220
[  402.365081]  ? mark_held_locks+0x130/0x130
[  402.369309]  ? mark_held_locks+0x130/0x130
[  402.373540]  ? debug_smp_processor_id+0x1c/0x20
[  402.378202]  ? perf_trace_lock+0x14d/0x7a0
[  402.382452]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.388011]  __handle_mm_fault+0x3ea0/0x5be0
[  402.392441]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  402.397295]  ? lock_is_held_type+0x210/0x210
[  402.401704]  ? ksys_dup3+0x680/0x680
[  402.405440]  ? zap_class+0x640/0x640
[  402.409150]  ? zap_class+0x640/0x640
[  402.412861]  ? __x64_sys_futex+0x53e/0x6a0
[  402.417096]  ? find_held_lock+0x36/0x1c0
[  402.421193]  ? handle_mm_fault+0x42a/0xc70
[  402.425455]  ? lock_downgrade+0x900/0x900
[  402.429598]  ? check_preemption_disabled+0x48/0x280
[  402.434620]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  402.439561]  ? kasan_check_read+0x11/0x20
[  402.443706]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.448977]  ? rcu_softirq_qs+0x20/0x20
[  402.452968]  ? trace_hardirqs_off_caller+0x310/0x310
[  402.458064]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.463593]  ? check_preemption_disabled+0x48/0x280
[  402.468627]  handle_mm_fault+0x54f/0xc70
[  402.472698]  ? __handle_mm_fault+0x5be0/0x5be0
[  402.477304]  ? find_vma+0x34/0x190
[  402.480903]  __do_page_fault+0x5e8/0xe60
[  402.484961]  ? trace_hardirqs_off+0xb8/0x310
[  402.489385]  do_page_fault+0xf2/0x7e0
[  402.493210]  ? vmalloc_sync_all+0x30/0x30
[  402.497387]  ? error_entry+0x70/0xd0
[  402.501112]  ? trace_hardirqs_off_caller+0xbb/0x310
[  402.506130]  ? trace_hardirqs_on_caller+0xc0/0x310
[  402.511057]  ? syscall_return_slowpath+0x5e0/0x5e0
[  402.515978]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.520837]  ? trace_hardirqs_on_caller+0x310/0x310
[  402.525856]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  402.531316]  ? prepare_exit_to_usermode+0x291/0x3b0
[  402.536348]  ? page_fault+0x8/0x30
[  402.539896]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.544793]  ? page_fault+0x8/0x30
[  402.548324]  page_fault+0x1e/0x30
[  402.551765] RIP: 0033:0x40f9c0
[  402.554964] Code: Bad RIP value.
[  402.558318] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  402.563671] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  402.570959] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  402.578227] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  402.585497] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  402.592759] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  402.600051] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  402.600055] warn_alloc_show_mem: 1 callbacks suppressed
[  402.600061] Mem-Info:
[  402.606839] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  402.612196] active_anon:54833 inactive_anon:712 isolated_anon:0
[  402.612196]  active_file:11 inactive_file:12 isolated_file:0
[  402.612196]  unevictable:0 dirty:0 writeback:0 unstable:0
[  402.612196]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  402.612196]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  402.612196]  free:13768 free_pcp:742 free_cma:0
[  402.614562] Call Trace:
[  402.623938] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  402.656808]  dump_stack+0x244/0x39d
[  402.659364] 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
[  402.686937]  ? dump_stack_print_info.cold.1+0x20/0x20
[  402.690551] lowmem_reserve[]: 0 2818 6321 6321
[  402.716655]  warn_alloc.cold.116+0xb7/0x1bd
[  402.721809] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  402.726375]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  402.730668] lowmem_reserve[]: 0 0 3503 3503
[  402.758467]  ? lock_downgrade+0x900/0x900
[  402.763299] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  402.767610]  ? trace_hardirqs_off+0xb8/0x310
[  402.771720] lowmem_reserve[]: 0 0 0 0
[  402.800989]  ? trace_hardirqs_off+0xb8/0x310
[  402.805379] 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
[  402.809174]  __alloc_pages_slowpath+0x26e8/0x2e10
[  402.813556] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  402.827100]  ? warn_alloc+0x120/0x120
[  402.831907] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  402.847643]  ? print_usage_bug+0xc0/0xc0
[  402.851420] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  402.866751]  ? warn_alloc+0x120/0x120
[  402.870806] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  402.879651]  ? warn_alloc+0x120/0x120
[  402.883421] 782 total pagecache pages
[  402.892044]  ? print_usage_bug+0xc0/0xc0
[  402.895825] 0 pages in swap cache
[  402.899614]  ? print_usage_bug+0xc0/0xc0
[  402.903646] Swap cache stats: add 0, delete 0, find 0/0
[  402.907085]  ? __lock_acquire+0x62f/0x4c20
[  402.911134] Free swap  = 0kB
[  402.916512]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.920716] Total swap = 0kB
[  402.923737]  ? should_fail+0x22d/0xd01
[  402.929242] 1965979 pages RAM
[  402.932245]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.936124] 0 pages HighMem/MovableOnly
[  402.939232]  ? __lock_acquire+0x62f/0x4c20
[  402.944313] 342853 pages reserved
[  402.948283]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.952484] 0 pages cma reserved
[  402.955980]  ? __lock_acquire+0x62f/0x4c20
[  402.961166] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  402.964456]  ? should_fail+0x22d/0xd01
[  402.964470]  ? find_held_lock+0x36/0x1c0
[  402.968737] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  402.975168]  ? mark_held_locks+0x130/0x130
[  402.979029] syz-fuzzer cpuset=/ mems_allowed=0
[  402.983086]  ? mark_held_locks+0x130/0x130
[  403.006298]  ? zap_class+0x640/0x640
[  403.010014]  ? mark_held_locks+0xc7/0x130
[  403.014156]  ? do_raw_spin_unlock+0xa7/0x330
[  403.018590]  ? zap_class+0x640/0x640
[  403.022312]  ? print_usage_bug+0xc0/0xc0
[  403.026382]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.031933]  ? check_preemption_disabled+0x48/0x280
[  403.036994]  ? __lock_is_held+0xb5/0x140
[  403.041074]  __alloc_pages_nodemask+0xa80/0xde0
[  403.045755]  ? zap_class+0x640/0x640
[  403.049489]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  403.054511]  ? find_held_lock+0x36/0x1c0
[  403.058621]  ? ____cache_alloc_node+0x1c7/0x1e0
[  403.063306]  ? lock_downgrade+0x900/0x900
[  403.067484]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.073046]  cache_grow_begin+0xa5/0x8c0
[  403.077122]  ? do_raw_spin_unlock+0xa7/0x330
[  403.081540]  fallback_alloc+0x204/0x2e0
[  403.085519]  ____cache_alloc_node+0x1c7/0x1e0
[  403.090032]  kmem_cache_alloc_node+0xe3/0x730
[  403.094529]  ? ipv6_get_ifaddr+0x42e/0x620
[  403.098786]  __alloc_skb+0x119/0x770
[  403.102512]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.107787]  ? netdev_alloc_frag+0x1f0/0x1f0
[  403.112189]  ? lock_downgrade+0x900/0x900
[  403.116349]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.121914]  ? refcount_sub_and_test_checked+0x203/0x310
[  403.127404]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  403.132846]  ? addrconf_rs_timer+0x690/0x690
[  403.137283]  ndisc_alloc_skb+0x144/0x340
[  403.141345]  ndisc_send_rs+0x331/0x6e0
[  403.145248]  addrconf_rs_timer+0x314/0x690
[  403.149489]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.153734]  call_timer_fn+0x272/0x920
[  403.157618]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.161845]  ? process_timeout+0x40/0x40
[  403.165917]  ? __run_timers+0x7da/0xc70
[  403.169905]  ? _raw_spin_unlock_irq+0x27/0x80
[  403.174393]  ? _raw_spin_unlock_irq+0x27/0x80
[  403.178884]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.183116]  ? lockdep_hardirqs_on+0x296/0x5b0
[  403.187713]  ? trace_hardirqs_on+0xbd/0x310
[  403.192058]  ? kasan_check_read+0x11/0x20
[  403.196198]  ? __run_timers+0x7da/0xc70
[  403.200170]  ? trace_hardirqs_off_caller+0x310/0x310
[  403.205289]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.209539]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.213767]  __run_timers+0x7e5/0xc70
[  403.217578]  ? timer_fixup_init+0x70/0x70
[  403.221738]  ? _raw_spin_unlock_irq+0x27/0x80
[  403.226229]  ? _raw_spin_unlock_irq+0x27/0x80
[  403.230722]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  403.235314]  ? trace_hardirqs_on+0xbd/0x310
[  403.239630]  ? kasan_check_read+0x11/0x20
[  403.243772]  ? finish_task_switch+0x1f4/0x910
[  403.248265]  ? trace_hardirqs_off_caller+0x310/0x310
[  403.253396]  ? compat_start_thread+0x80/0x80
[  403.257820]  ? pvclock_read_flags+0x160/0x160
[  403.262310]  ? __switch_to_asm+0x34/0x70
[  403.266379]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.271917]  ? check_preemption_disabled+0x48/0x280
[  403.276937]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  403.282473]  ? rcu_pm_notify+0xc0/0xc0
[  403.286390]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.291928]  ? check_preemption_disabled+0x48/0x280
[  403.296945]  run_timer_softirq+0x52/0xb0
[  403.301009]  ? rcu_read_lock_sched_held+0x14f/0x180
[  403.306029]  __do_softirq+0x308/0xb7e
[  403.309845]  ? retint_kernel+0x2d/0x2d
[  403.313729]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  403.318826]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  403.324281]  ? trace_hardirqs_on+0x310/0x310
[  403.328707]  ? schedule+0x108/0x460
[  403.332345]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  403.337107]  ? trace_hardirqs_off+0xb8/0x310
[  403.341530]  ? smpboot_thread_fn+0x68b/0xa00
[  403.345933]  ? trace_hardirqs_on+0x310/0x310
[  403.350354]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.355908]  ? check_preemption_disabled+0x48/0x280
[  403.360926]  ? takeover_tasklets+0xa90/0xa90
[  403.365337]  run_ksoftirqd+0x5e/0x100
[  403.369154]  smpboot_thread_fn+0x68b/0xa00
[  403.373389]  ? sort_range+0x30/0x30
[  403.377021]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  403.382126]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.387679]  ? __kthread_parkme+0xfb/0x1a0
[  403.391914]  ? sort_range+0x30/0x30
[  403.395553]  kthread+0x35a/0x440
[  403.398919]  ? kthread_stop+0x900/0x900
[  403.402910]  ret_from_fork+0x3a/0x50
[  403.406641] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  403.406714] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  403.413568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  403.413573] Call Trace:
[  403.413580]  <IRQ>
[  403.413596]  dump_stack+0x244/0x39d
[  403.413614]  ? dump_stack_print_info.cold.1+0x20/0x20
[  403.420168] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  403.429462]  warn_alloc.cold.116+0xb7/0x1bd
[  403.432048] ksoftirqd/0 cpuset=/ mems_allowed=0
[  403.434200]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  403.467071]  ? lock_downgrade+0x900/0x900
[  403.471243]  ? trace_hardirqs_off+0xb8/0x310
[  403.475650]  ? trace_hardirqs_off+0xb8/0x310
[  403.480083]  __alloc_pages_slowpath+0x26e8/0x2e10
[  403.484940]  ? warn_alloc+0x120/0x120
[  403.488747]  ? print_usage_bug+0xc0/0xc0
[  403.492824]  ? warn_alloc+0x120/0x120
[  403.496715]  ? warn_alloc+0x120/0x120
[  403.500517]  ? print_usage_bug+0xc0/0xc0
[  403.504585]  ? print_usage_bug+0xc0/0xc0
[  403.508647]  ? __lock_acquire+0x62f/0x4c20
[  403.512973]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.518519]  ? should_fail+0x22d/0xd01
[  403.522421]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  403.527523]  ? __lock_acquire+0x62f/0x4c20
[  403.531754]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  403.536948]  ? __lock_acquire+0x62f/0x4c20
[  403.541179]  ? should_fail+0x22d/0xd01
[  403.545082]  ? find_held_lock+0x36/0x1c0
[  403.549197]  ? mark_held_locks+0x130/0x130
[  403.553452]  ? mark_held_locks+0x130/0x130
[  403.557698]  ? zap_class+0x640/0x640
[  403.561442]  ? zap_class+0x640/0x640
[  403.565161]  ? print_usage_bug+0xc0/0xc0
[  403.569221]  ? do_raw_spin_unlock+0xa7/0x330
[  403.573658]  ? zap_class+0x640/0x640
[  403.577416]  ? print_usage_bug+0xc0/0xc0
[  403.581489]  ? wq_watchdog_touch+0x9c/0xfe
[  403.585743]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.591295]  ? check_preemption_disabled+0x48/0x280
[  403.596315]  ? __lock_is_held+0xb5/0x140
[  403.600381]  __alloc_pages_nodemask+0xa80/0xde0
[  403.605052]  ? zap_class+0x640/0x640
[  403.608766]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  403.613793]  ? find_held_lock+0x36/0x1c0
[  403.617851]  ? ____cache_alloc_node+0x1c7/0x1e0
[  403.622512]  ? lock_downgrade+0x900/0x900
[  403.626672]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.632203]  cache_grow_begin+0xa5/0x8c0
[  403.636280]  ? do_raw_spin_unlock+0xa7/0x330
[  403.640717]  fallback_alloc+0x204/0x2e0
[  403.644732]  ____cache_alloc_node+0x1c7/0x1e0
[  403.649231]  kmem_cache_alloc_node+0xe3/0x730
[  403.653727]  ? ipv6_get_ifaddr+0x42e/0x620
[  403.657971]  __alloc_skb+0x119/0x770
[  403.661685]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.666950]  ? netdev_alloc_frag+0x1f0/0x1f0
[  403.671348]  ? lock_downgrade+0x900/0x900
[  403.675503]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.681041]  ? refcount_sub_and_test_checked+0x203/0x310
[  403.686491]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  403.691942]  ? addrconf_rs_timer+0x690/0x690
[  403.696376]  ndisc_alloc_skb+0x144/0x340
[  403.700455]  ndisc_send_rs+0x331/0x6e0
[  403.704347]  addrconf_rs_timer+0x314/0x690
[  403.708584]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.712828]  call_timer_fn+0x272/0x920
[  403.716714]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.720946]  ? process_timeout+0x40/0x40
[  403.725019]  ? mark_held_locks+0xc7/0x130
[  403.729200]  ? _raw_spin_unlock_irq+0x27/0x80
[  403.733711]  ? _raw_spin_unlock_irq+0x27/0x80
[  403.738218]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.742471]  ? lockdep_hardirqs_on+0x296/0x5b0
[  403.747070]  ? trace_hardirqs_on+0xbd/0x310
[  403.751389]  ? kasan_check_read+0x11/0x20
[  403.755535]  ? __run_timers+0x7da/0xc70
[  403.759570]  ? trace_hardirqs_off_caller+0x310/0x310
[  403.764690]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.768929]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.773173]  __run_timers+0x7e5/0xc70
[  403.776980]  ? timer_fixup_init+0x70/0x70
[  403.781149]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  403.786164]  ? zap_class+0x640/0x640
[  403.789878]  ? print_usage_bug+0xc0/0xc0
[  403.793934]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  403.799136]  ? find_held_lock+0x36/0x1c0
[  403.803211]  ? zap_class+0x640/0x640
[  403.806939]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.812478]  ? check_preemption_disabled+0x48/0x280
[  403.817521]  ? __lock_is_held+0xb5/0x140
[  403.821596]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.827134]  ? check_preemption_disabled+0x48/0x280
[  403.832150]  run_timer_softirq+0x52/0xb0
[  403.836245]  ? rcu_read_lock_sched_held+0x14f/0x180
[  403.841279]  __do_softirq+0x308/0xb7e
[  403.845084]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  403.849604]  ? lock_downgrade+0x900/0x900
[  403.853814]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  403.858920]  ? pvclock_read_flags+0x160/0x160
[  403.863455]  ? lapic_next_event+0x5a/0x90
[  403.867605]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.873147]  ? kvm_clock_read+0x18/0x30
[  403.877117]  ? kvm_sched_clock_read+0x9/0x20
[  403.881540]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.887081]  ? check_preemption_disabled+0x48/0x280
[  403.892110]  irq_exit+0x17f/0x1c0
[  403.895559]  smp_apic_timer_interrupt+0x1cb/0x760
[  403.900419]  ? smp_call_function_single_interrupt+0x159/0x650
[  403.906311]  ? smp_call_function_single_interrupt+0x650/0x650
[  403.912271]  ? interrupt_entry+0xb5/0xc0
[  403.916367]  ? trace_hardirqs_off_caller+0xbb/0x310
[  403.921397]  ? trace_hardirqs_off_caller+0xbb/0x310
[  403.926431]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  403.931287]  ? trace_hardirqs_on_caller+0x310/0x310
[  403.936304]  ? trace_hardirqs_on_caller+0x310/0x310
[  403.941384]  ? task_prio+0x50/0x50
[  403.944936]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.950482]  ? check_preemption_disabled+0x48/0x280
[  403.955496]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  403.960336]  apic_timer_interrupt+0xf/0x20
[  403.964552]  </IRQ>
[  403.966800] RIP: 0010:dump_stack+0x358/0x39d
[  403.971215] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  403.990106] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  403.997822] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  404.005082] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  404.012352] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  404.019640] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  404.026897] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  404.034174]  ? dump_stack+0x34f/0x39d
[  404.037978]  ? dump_stack_print_info.cold.1+0x20/0x20
[  404.043169]  ? mark_held_locks+0x130/0x130
[  404.047395]  ? mark_held_locks+0x130/0x130
[  404.051625]  dump_header+0x27b/0xf72
[  404.055360]  ? pagefault_out_of_memory+0x197/0x197
[  404.060301]  ? __lock_acquire+0x62f/0x4c20
[  404.064528]  ? percpu_ref_get_many+0x240/0x240
[  404.069118]  ? print_usage_bug+0xc0/0xc0
[  404.073241]  ? zap_class+0x640/0x640
[  404.076955]  ? print_usage_bug+0xc0/0xc0
[  404.081039]  ? print_usage_bug+0xc0/0xc0
[  404.085101]  ? zap_class+0x640/0x640
[  404.088815]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.094359]  ? find_held_lock+0x36/0x1c0
[  404.098426]  ? mark_held_locks+0xc7/0x130
[  404.102584]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  404.107682]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  404.112788]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  404.117371]  ? trace_hardirqs_on+0xbd/0x310
[  404.121703]  ? kasan_check_read+0x11/0x20
[  404.125843]  ? ___ratelimit+0x3b4/0x672
[  404.129814]  ? trace_hardirqs_off_caller+0x310/0x310
[  404.134916]  ? trace_hardirqs_on+0x310/0x310
[  404.139321]  ? lock_downgrade+0x900/0x900
[  404.143472]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  404.148573]  ? ___ratelimit+0x3b9/0x672
[  404.152564]  ? idr_get_free+0xf70/0xf70
[  404.156538]  ? find_held_lock+0x36/0x1c0
[  404.160610]  oom_kill_process.cold.27+0x10/0x903
[  404.165377]  ? zap_class+0x640/0x640
[  404.169087]  ? check_preemption_disabled+0x48/0x280
[  404.174102]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  404.179037]  ? kasan_check_read+0x11/0x20
[  404.183185]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.188463]  ? oom_evaluate_task+0x540/0x540
[  404.192871]  ? find_held_lock+0x36/0x1c0
[  404.196929]  ? out_of_memory+0x974/0x1430
[  404.201107]  ? lock_downgrade+0x900/0x900
[  404.205270]  ? check_preemption_disabled+0x48/0x280
[  404.210279]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  404.215202]  ? kasan_check_read+0x11/0x20
[  404.219345]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.224631]  ? rcu_softirq_qs+0x20/0x20
[  404.228599]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.234124]  ? oom_evaluate_task+0x302/0x540
[  404.238530]  out_of_memory+0xa84/0x1430
[  404.242522]  ? oom_killer_disable+0x3a0/0x3a0
[  404.247016]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  404.251939]  ? __ww_mutex_check_waiters+0x160/0x160
[  404.257007]  __alloc_pages_slowpath+0x2354/0x2e10
[  404.261885]  ? warn_alloc+0x120/0x120
[  404.265680]  ? mark_held_locks+0x130/0x130
[  404.270039]  ? find_get_entry+0xaae/0x1120
[  404.274309]  ? filemap_map_pages+0x1a20/0x1a20
[  404.278894]  ? zap_class+0x640/0x640
[  404.282642]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.288178]  ? check_preemption_disabled+0x48/0x280
[  404.293194]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.298729]  ? should_fail+0x22d/0xd01
[  404.302642]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  404.307741]  ? zap_class+0x640/0x640
[  404.311475]  ? __lock_is_held+0xb5/0x140
[  404.315542]  ? mark_held_locks+0x130/0x130
[  404.319786]  ? lock_release+0xa00/0xa00
[  404.323759]  ? perf_trace_sched_process_exec+0x860/0x860
[  404.329210]  ? xa_load+0x2ba/0x460
[  404.332797]  ? lock_downgrade+0x900/0x900
[  404.336975]  ? __might_sleep+0x95/0x190
[  404.340969]  __alloc_pages_nodemask+0xa80/0xde0
[  404.345678]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  404.350695]  ? __page_cache_alloc+0x191/0x5c0
[  404.355201]  ? xa_load+0x2e1/0x460
[  404.358760]  ? xa_clear_mark+0x40/0x40
[  404.362652]  ? zap_class+0x640/0x640
[  404.366388]  ? zap_class+0x640/0x640
[  404.370117]  ? zap_class+0x640/0x640
[  404.373848]  ? __do_page_cache_readahead+0x663/0x810
[  404.378955]  ? find_held_lock+0x36/0x1c0
[  404.383026]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  404.388570]  alloc_pages_current+0x173/0x350
[  404.392981]  __page_cache_alloc+0x38c/0x5c0
[  404.397307]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  404.402246]  ? kasan_check_read+0x11/0x20
[  404.406404]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.411683]  ? generic_perform_write+0x6a0/0x6a0
[  404.416435]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.421986]  ? check_preemption_disabled+0x48/0x280
[  404.427018]  filemap_fault+0x1595/0x25f0
[  404.431101]  ? __lock_page_or_retry+0xa00/0xa00
[  404.435785]  ? mark_held_locks+0x130/0x130
[  404.440031]  ? filemap_map_pages+0xd6b/0x1a20
[  404.444523]  ? lock_downgrade+0x900/0x900
[  404.448679]  ? check_preemption_disabled+0x48/0x280
[  404.453693]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  404.458627]  ? kasan_check_read+0x11/0x20
[  404.462767]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.468044]  ? rcu_softirq_qs+0x20/0x20
[  404.472044]  ? filemap_map_pages+0xd92/0x1a20
[  404.476561]  ? find_get_entries_tag+0x1400/0x1400
[  404.481429]  ? debug_object_destroy+0x2b0/0x2b0
[  404.486093]  ? lock_pi_update_atomic+0x150/0x150
[  404.490847]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.496416]  ? lock_acquire+0x1ed/0x520
[  404.500383]  ? ext4_filemap_fault+0x7a/0xad
[  404.504711]  ? lock_release+0xa00/0xa00
[  404.508681]  ? perf_trace_sched_process_exec+0x860/0x860
[  404.514139]  ? print_usage_bug+0xc0/0xc0
[  404.518221]  ? print_usage_bug+0xc0/0xc0
[  404.522297]  ? down_read+0x8d/0x120
[  404.525930]  ? ext4_filemap_fault+0x7a/0xad
[  404.530279]  ? __down_interruptible+0x700/0x700
[  404.534953]  ext4_filemap_fault+0x82/0xad
[  404.539113]  __do_fault+0x100/0x6b0
[  404.542758]  ? pmd_devmap_trans_unstable+0x220/0x220
[  404.547883]  ? mark_held_locks+0x130/0x130
[  404.552116]  ? mark_held_locks+0x130/0x130
[  404.556347]  ? debug_smp_processor_id+0x1c/0x20
[  404.561016]  ? perf_trace_lock+0x14d/0x7a0
[  404.565250]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.570787]  __handle_mm_fault+0x3ea0/0x5be0
[  404.575198]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  404.580035]  ? lock_is_held_type+0x210/0x210
[  404.584445]  ? ksys_dup3+0x680/0x680
[  404.588185]  ? zap_class+0x640/0x640
[  404.591892]  ? zap_class+0x640/0x640
[  404.595622]  ? __x64_sys_futex+0x53e/0x6a0
[  404.599869]  ? find_held_lock+0x36/0x1c0
[  404.603932]  ? handle_mm_fault+0x42a/0xc70
[  404.608163]  ? lock_downgrade+0x900/0x900
[  404.612322]  ? check_preemption_disabled+0x48/0x280
[  404.617426]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  404.622365]  ? kasan_check_read+0x11/0x20
[  404.626509]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.631788]  ? rcu_softirq_qs+0x20/0x20
[  404.635759]  ? trace_hardirqs_off_caller+0x310/0x310
[  404.640876]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.646408]  ? check_preemption_disabled+0x48/0x280
[  404.651425]  handle_mm_fault+0x54f/0xc70
[  404.655501]  ? __handle_mm_fault+0x5be0/0x5be0
[  404.660103]  ? find_vma+0x34/0x190
[  404.663643]  __do_page_fault+0x5e8/0xe60
[  404.667703]  ? trace_hardirqs_off+0xb8/0x310
[  404.672152]  do_page_fault+0xf2/0x7e0
[  404.675951]  ? vmalloc_sync_all+0x30/0x30
[  404.680095]  ? error_entry+0x70/0xd0
[  404.683813]  ? trace_hardirqs_off_caller+0xbb/0x310
[  404.688823]  ? trace_hardirqs_on_caller+0xc0/0x310
[  404.693751]  ? syscall_return_slowpath+0x5e0/0x5e0
[  404.698679]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.703545]  ? trace_hardirqs_on_caller+0x310/0x310
[  404.708568]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  404.714021]  ? prepare_exit_to_usermode+0x291/0x3b0
[  404.719067]  ? page_fault+0x8/0x30
[  404.722691]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.727528]  ? page_fault+0x8/0x30
[  404.731065]  page_fault+0x1e/0x30
[  404.734507] RIP: 0033:0x40f9c0
[  404.737768] Code: Bad RIP value.
[  404.741166] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  404.746551] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  404.753843] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  404.761119] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  404.768384] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  404.775647] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  404.782935] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  404.782940] warn_alloc_show_mem: 1 callbacks suppressed
[  404.782946] Mem-Info:
[  404.789701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  404.795099] active_anon:54833 inactive_anon:712 isolated_anon:0
[  404.795099]  active_file:11 inactive_file:12 isolated_file:0
[  404.795099]  unevictable:0 dirty:0 writeback:0 unstable:0
[  404.795099]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  404.795099]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  404.795099]  free:13768 free_pcp:742 free_cma:0
[  404.797642] Call Trace:
[  404.807869] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  404.840774]  dump_stack+0x244/0x39d
[  404.843336] 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
[  404.871026]  ? dump_stack_print_info.cold.1+0x20/0x20
[  404.874624] lowmem_reserve[]: 0 2818 6321 6321
[  404.900755]  warn_alloc.cold.116+0xb7/0x1bd
[  404.905907] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  404.910501]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  404.914799] lowmem_reserve[]: 0 0 3503 3503
[  404.942545]  ? lock_downgrade+0x900/0x900
[  404.947360] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  404.951699]  ? trace_hardirqs_off+0xb8/0x310
[  404.955861] lowmem_reserve[]: 0 0 0 0
[  404.985105]  ? trace_hardirqs_off+0xb8/0x310
[  404.989501] 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
[  404.993311]  __alloc_pages_slowpath+0x26e8/0x2e10
[  404.997731] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  405.011292]  ? warn_alloc+0x120/0x120
[  405.016081] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  405.031762]  ? print_usage_bug+0xc0/0xc0
[  405.035543] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  405.050867]  ? warn_alloc+0x120/0x120
[  405.054919] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  405.063736]  ? warn_alloc+0x120/0x120
[  405.067511] 782 total pagecache pages
[  405.076078]  ? print_usage_bug+0xc0/0xc0
[  405.079859] 0 pages in swap cache
[  405.083648]  ? print_usage_bug+0xc0/0xc0
[  405.087699] Swap cache stats: add 0, delete 0, find 0/0
[  405.091158]  ? __lock_acquire+0x62f/0x4c20
[  405.095193] Free swap  = 0kB
[  405.100563]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.104768] Total swap = 0kB
[  405.107773]  ? should_fail+0x22d/0xd01
[  405.113280] 1965979 pages RAM
[  405.113288] 0 pages HighMem/MovableOnly
[  405.116298]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  405.120158] 342853 pages reserved
[  405.123267]  ? __lock_acquire+0x62f/0x4c20
[  405.127217] 0 pages cma reserved
[  405.132310]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  405.135798] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  405.139953]  ? __lock_acquire+0x62f/0x4c20
[  405.139965]  ? should_fail+0x22d/0xd01
[  405.139979]  ? find_held_lock+0x36/0x1c0
[  405.139998]  ? mark_held_locks+0x130/0x130
[  405.143427] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  405.148457]  ? mark_held_locks+0x130/0x130
[  405.154934] syz-fuzzer cpuset=/ mems_allowed=0
[  405.159158]  ? zap_class+0x640/0x640
[  405.194017]  ? mark_held_locks+0xc7/0x130
[  405.198168]  ? do_raw_spin_unlock+0xa7/0x330
[  405.202581]  ? zap_class+0x640/0x640
[  405.206319]  ? print_usage_bug+0xc0/0xc0
[  405.210400]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.215954]  ? check_preemption_disabled+0x48/0x280
[  405.221010]  ? __lock_is_held+0xb5/0x140
[  405.225076]  __alloc_pages_nodemask+0xa80/0xde0
[  405.229760]  ? zap_class+0x640/0x640
[  405.233478]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  405.238510]  ? find_held_lock+0x36/0x1c0
[  405.242587]  ? ____cache_alloc_node+0x1c7/0x1e0
[  405.247261]  ? lock_downgrade+0x900/0x900
[  405.251424]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.256967]  cache_grow_begin+0xa5/0x8c0
[  405.261031]  ? do_raw_spin_unlock+0xa7/0x330
[  405.265445]  fallback_alloc+0x204/0x2e0
[  405.269450]  ____cache_alloc_node+0x1c7/0x1e0
[  405.273977]  kmem_cache_alloc_node+0xe3/0x730
[  405.278509]  ? ipv6_get_ifaddr+0x42e/0x620
[  405.282748]  __alloc_skb+0x119/0x770
[  405.286456]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.291734]  ? netdev_alloc_frag+0x1f0/0x1f0
[  405.296139]  ? lock_downgrade+0x900/0x900
[  405.300293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.305846]  ? refcount_sub_and_test_checked+0x203/0x310
[  405.311316]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  405.316761]  ? addrconf_rs_timer+0x690/0x690
[  405.321177]  ndisc_alloc_skb+0x144/0x340
[  405.325260]  ndisc_send_rs+0x331/0x6e0
[  405.329155]  addrconf_rs_timer+0x314/0x690
[  405.333418]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.337689]  call_timer_fn+0x272/0x920
[  405.341573]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.345807]  ? process_timeout+0x40/0x40
[  405.349872]  ? __run_timers+0x7da/0xc70
[  405.353851]  ? _raw_spin_unlock_irq+0x27/0x80
[  405.358343]  ? _raw_spin_unlock_irq+0x27/0x80
[  405.362835]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.367063]  ? lockdep_hardirqs_on+0x296/0x5b0
[  405.371638]  ? trace_hardirqs_on+0xbd/0x310
[  405.375993]  ? kasan_check_read+0x11/0x20
[  405.380155]  ? __run_timers+0x7da/0xc70
[  405.384126]  ? trace_hardirqs_off_caller+0x310/0x310
[  405.389223]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.393469]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.397718]  __run_timers+0x7e5/0xc70
[  405.401563]  ? timer_fixup_init+0x70/0x70
[  405.405720]  ? _raw_spin_unlock_irq+0x27/0x80
[  405.410239]  ? _raw_spin_unlock_irq+0x27/0x80
[  405.414730]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  405.419357]  ? trace_hardirqs_on+0xbd/0x310
[  405.423668]  ? kasan_check_read+0x11/0x20
[  405.427808]  ? finish_task_switch+0x1f4/0x910
[  405.432341]  ? trace_hardirqs_off_caller+0x310/0x310
[  405.437479]  ? compat_start_thread+0x80/0x80
[  405.441906]  ? pvclock_read_flags+0x160/0x160
[  405.446397]  ? __switch_to_asm+0x34/0x70
[  405.450454]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.456010]  ? check_preemption_disabled+0x48/0x280
[  405.461055]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  405.466605]  ? rcu_pm_notify+0xc0/0xc0
[  405.470490]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.476036]  ? check_preemption_disabled+0x48/0x280
[  405.481068]  run_timer_softirq+0x52/0xb0
[  405.485124]  ? rcu_read_lock_sched_held+0x14f/0x180
[  405.490162]  __do_softirq+0x308/0xb7e
[  405.493959]  ? retint_kernel+0x2d/0x2d
[  405.499319]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  405.504423]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  405.509882]  ? trace_hardirqs_on+0x310/0x310
[  405.514302]  ? schedule+0x108/0x460
[  405.517954]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  405.522716]  ? trace_hardirqs_off+0xb8/0x310
[  405.527123]  ? smpboot_thread_fn+0x68b/0xa00
[  405.531530]  ? trace_hardirqs_on+0x310/0x310
[  405.535936]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.541505]  ? check_preemption_disabled+0x48/0x280
[  405.546523]  ? takeover_tasklets+0xa90/0xa90
[  405.550944]  run_ksoftirqd+0x5e/0x100
[  405.554787]  smpboot_thread_fn+0x68b/0xa00
[  405.559038]  ? sort_range+0x30/0x30
[  405.562697]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  405.567828]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.573361]  ? __kthread_parkme+0xfb/0x1a0
[  405.577594]  ? sort_range+0x30/0x30
[  405.581229]  kthread+0x35a/0x440
[  405.584592]  ? kthread_stop+0x900/0x900
[  405.588577]  ret_from_fork+0x3a/0x50
[  405.592314] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  405.592377] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  405.599258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  405.599282] Call Trace:
[  405.599288]  <IRQ>
[  405.605895] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  405.615141]  dump_stack+0x244/0x39d
[  405.617714] ksoftirqd/0 cpuset=/ mems_allowed=0
[  405.619859]  ? dump_stack_print_info.cold.1+0x20/0x20
[  405.643599]  warn_alloc.cold.116+0xb7/0x1bd
[  405.647919]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  405.652786]  ? lock_downgrade+0x900/0x900
[  405.656936]  ? trace_hardirqs_off+0xb8/0x310
[  405.661351]  ? trace_hardirqs_off+0xb8/0x310
[  405.665764]  __alloc_pages_slowpath+0x26e8/0x2e10
[  405.670731]  ? warn_alloc+0x120/0x120
[  405.674530]  ? print_usage_bug+0xc0/0xc0
[  405.678603]  ? warn_alloc+0x120/0x120
[  405.682405]  ? warn_alloc+0x120/0x120
[  405.686208]  ? print_usage_bug+0xc0/0xc0
[  405.690273]  ? print_usage_bug+0xc0/0xc0
[  405.694363]  ? __lock_acquire+0x62f/0x4c20
[  405.698607]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.704163]  ? should_fail+0x22d/0xd01
[  405.708058]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  405.713162]  ? __lock_acquire+0x62f/0x4c20
[  405.717428]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  405.722546]  ? __lock_acquire+0x62f/0x4c20
[  405.726787]  ? should_fail+0x22d/0xd01
[  405.730702]  ? mark_held_locks+0x130/0x130
[  405.734940]  ? mark_held_locks+0x130/0x130
[  405.739166]  ? zap_class+0x640/0x640
[  405.742881]  ? zap_class+0x640/0x640
[  405.746602]  ? print_usage_bug+0xc0/0xc0
[  405.750689]  ? wq_watchdog_touch+0x9c/0xfe
[  405.754923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.760474]  ? check_preemption_disabled+0x48/0x280
[  405.765495]  ? __lock_is_held+0xb5/0x140
[  405.769573]  __alloc_pages_nodemask+0xa80/0xde0
[  405.774251]  ? zap_class+0x640/0x640
[  405.777978]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  405.783026]  ? find_held_lock+0x36/0x1c0
[  405.787089]  ? ____cache_alloc_node+0x1c7/0x1e0
[  405.791752]  ? lock_downgrade+0x900/0x900
[  405.795902]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.801442]  cache_grow_begin+0xa5/0x8c0
[  405.805494]  ? do_raw_spin_unlock+0xa7/0x330
[  405.809899]  fallback_alloc+0x204/0x2e0
[  405.813874]  ____cache_alloc_node+0x1c7/0x1e0
[  405.818382]  kmem_cache_alloc_node+0xe3/0x730
[  405.822886]  ? ipv6_get_ifaddr+0x42e/0x620
[  405.827134]  __alloc_skb+0x119/0x770
[  405.830837]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.836145]  ? netdev_alloc_frag+0x1f0/0x1f0
[  405.840567]  ? lock_downgrade+0x900/0x900
[  405.844735]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.850296]  ? refcount_sub_and_test_checked+0x203/0x310
[  405.855744]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  405.861187]  ? addrconf_rs_timer+0x690/0x690
[  405.865600]  ndisc_alloc_skb+0x144/0x340
[  405.869665]  ndisc_send_rs+0x331/0x6e0
[  405.873571]  addrconf_rs_timer+0x314/0x690
[  405.877836]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.882073]  call_timer_fn+0x272/0x920
[  405.885950]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.890176]  ? process_timeout+0x40/0x40
[  405.894269]  ? mark_held_locks+0xc7/0x130
[  405.898410]  ? _raw_spin_unlock_irq+0x27/0x80
[  405.902912]  ? _raw_spin_unlock_irq+0x27/0x80
[  405.907412]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.911656]  ? lockdep_hardirqs_on+0x296/0x5b0
[  405.916279]  ? trace_hardirqs_on+0xbd/0x310
[  405.920607]  ? kasan_check_read+0x11/0x20
[  405.924792]  ? __run_timers+0x7da/0xc70
[  405.928780]  ? trace_hardirqs_off_caller+0x310/0x310
[  405.933903]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.938146]  __run_timers+0x7e5/0xc70
[  405.941984]  ? timer_fixup_init+0x70/0x70
[  405.946134]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  405.951143]  ? zap_class+0x640/0x640
[  405.954855]  ? print_usage_bug+0xc0/0xc0
[  405.958937]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  405.964129]  ? find_held_lock+0x36/0x1c0
[  405.968189]  ? zap_class+0x640/0x640
[  405.971918]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.977486]  ? check_preemption_disabled+0x48/0x280
[  405.982511]  ? __lock_is_held+0xb5/0x140
[  405.986571]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.992105]  ? check_preemption_disabled+0x48/0x280
[  405.997120]  run_timer_softirq+0x52/0xb0
[  406.001181]  ? rcu_read_lock_sched_held+0x14f/0x180
[  406.006195]  __do_softirq+0x308/0xb7e
[  406.009998]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  406.014516]  ? lock_downgrade+0x900/0x900
[  406.018669]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  406.023781]  ? pvclock_read_flags+0x160/0x160
[  406.028270]  ? lapic_next_event+0x5a/0x90
[  406.032426]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.037979]  ? kvm_clock_read+0x18/0x30
[  406.041953]  ? kvm_sched_clock_read+0x9/0x20
[  406.046356]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.051889]  ? check_preemption_disabled+0x48/0x280
[  406.056924]  irq_exit+0x17f/0x1c0
[  406.060371]  smp_apic_timer_interrupt+0x1cb/0x760
[  406.065203]  ? smp_call_function_single_interrupt+0x159/0x650
[  406.071077]  ? smp_call_function_single_interrupt+0x650/0x650
[  406.076985]  ? interrupt_entry+0xb5/0xc0
[  406.081100]  ? trace_hardirqs_off_caller+0xbb/0x310
[  406.086113]  ? trace_hardirqs_off_caller+0xbb/0x310
[  406.091127]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.095963]  ? trace_hardirqs_on_caller+0x310/0x310
[  406.100979]  ? trace_hardirqs_on_caller+0x310/0x310
[  406.106009]  ? task_prio+0x50/0x50
[  406.109548]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.115090]  ? check_preemption_disabled+0x48/0x280
[  406.120108]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.124952]  apic_timer_interrupt+0xf/0x20
[  406.129177]  </IRQ>
[  406.131408] RIP: 0010:dump_stack+0x358/0x39d
[  406.135818] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  406.154711] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  406.162411] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  406.169687] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  406.176948] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  406.184225] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  406.191520] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  406.198804]  ? dump_stack+0x34f/0x39d
[  406.202618]  ? dump_stack_print_info.cold.1+0x20/0x20
[  406.207812]  ? mark_held_locks+0x130/0x130
[  406.212050]  ? mark_held_locks+0x130/0x130
[  406.216304]  dump_header+0x27b/0xf72
[  406.220041]  ? pagefault_out_of_memory+0x197/0x197
[  406.224983]  ? __lock_acquire+0x62f/0x4c20
[  406.229247]  ? percpu_ref_get_many+0x240/0x240
[  406.233831]  ? print_usage_bug+0xc0/0xc0
[  406.237895]  ? zap_class+0x640/0x640
[  406.241610]  ? print_usage_bug+0xc0/0xc0
[  406.245667]  ? print_usage_bug+0xc0/0xc0
[  406.249761]  ? zap_class+0x640/0x640
[  406.253484]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.259030]  ? find_held_lock+0x36/0x1c0
[  406.263105]  ? mark_held_locks+0xc7/0x130
[  406.267273]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  406.272370]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  406.277491]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  406.282091]  ? trace_hardirqs_on+0xbd/0x310
[  406.286420]  ? kasan_check_read+0x11/0x20
[  406.290570]  ? ___ratelimit+0x3b4/0x672
[  406.294548]  ? trace_hardirqs_off_caller+0x310/0x310
[  406.299650]  ? trace_hardirqs_on+0x310/0x310
[  406.304071]  ? lock_downgrade+0x900/0x900
[  406.308234]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  406.313342]  ? ___ratelimit+0x3b9/0x672
[  406.317311]  ? idr_get_free+0xf70/0xf70
[  406.321278]  ? find_held_lock+0x36/0x1c0
[  406.325370]  oom_kill_process.cold.27+0x10/0x903
[  406.330134]  ? zap_class+0x640/0x640
[  406.333869]  ? check_preemption_disabled+0x48/0x280
[  406.338890]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  406.343832]  ? kasan_check_read+0x11/0x20
[  406.347981]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.353269]  ? oom_evaluate_task+0x540/0x540
[  406.357695]  ? find_held_lock+0x36/0x1c0
[  406.361785]  ? out_of_memory+0x974/0x1430
[  406.365936]  ? lock_downgrade+0x900/0x900
[  406.370087]  ? check_preemption_disabled+0x48/0x280
[  406.375128]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  406.380077]  ? kasan_check_read+0x11/0x20
[  406.384227]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.389505]  ? rcu_softirq_qs+0x20/0x20
[  406.393487]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.399022]  ? oom_evaluate_task+0x302/0x540
[  406.403433]  out_of_memory+0xa84/0x1430
[  406.407414]  ? oom_killer_disable+0x3a0/0x3a0
[  406.411906]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  406.416850]  ? __ww_mutex_check_waiters+0x160/0x160
[  406.421872]  __alloc_pages_slowpath+0x2354/0x2e10
[  406.426735]  ? warn_alloc+0x120/0x120
[  406.430545]  ? mark_held_locks+0x130/0x130
[  406.434786]  ? find_get_entry+0xaae/0x1120
[  406.439035]  ? filemap_map_pages+0x1a20/0x1a20
[  406.443618]  ? zap_class+0x640/0x640
[  406.447331]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.452878]  ? check_preemption_disabled+0x48/0x280
[  406.457891]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.463422]  ? should_fail+0x22d/0xd01
[  406.467309]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  406.472421]  ? zap_class+0x640/0x640
[  406.476148]  ? __lock_is_held+0xb5/0x140
[  406.480224]  ? mark_held_locks+0x130/0x130
[  406.484476]  ? lock_release+0xa00/0xa00
[  406.488446]  ? perf_trace_sched_process_exec+0x860/0x860
[  406.493889]  ? xa_load+0x2ba/0x460
[  406.497424]  ? lock_downgrade+0x900/0x900
[  406.501568]  ? __might_sleep+0x95/0x190
[  406.505538]  __alloc_pages_nodemask+0xa80/0xde0
[  406.510209]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  406.515221]  ? __page_cache_alloc+0x191/0x5c0
[  406.519705]  ? xa_load+0x2e1/0x460
[  406.523248]  ? xa_clear_mark+0x40/0x40
[  406.527126]  ? zap_class+0x640/0x640
[  406.530832]  ? zap_class+0x640/0x640
[  406.534551]  ? zap_class+0x640/0x640
[  406.538270]  ? __do_page_cache_readahead+0x663/0x810
[  406.543398]  ? find_held_lock+0x36/0x1c0
[  406.547474]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  406.553016]  alloc_pages_current+0x173/0x350
[  406.557422]  __page_cache_alloc+0x38c/0x5c0
[  406.561737]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  406.566692]  ? kasan_check_read+0x11/0x20
[  406.570837]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.576111]  ? generic_perform_write+0x6a0/0x6a0
[  406.580866]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.586403]  ? check_preemption_disabled+0x48/0x280
[  406.591422]  filemap_fault+0x1595/0x25f0
[  406.595505]  ? __lock_page_or_retry+0xa00/0xa00
[  406.600187]  ? mark_held_locks+0x130/0x130
[  406.604424]  ? filemap_map_pages+0xd6b/0x1a20
[  406.608913]  ? lock_downgrade+0x900/0x900
[  406.613057]  ? check_preemption_disabled+0x48/0x280
[  406.618070]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  406.622991]  ? kasan_check_read+0x11/0x20
[  406.627149]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.632431]  ? rcu_softirq_qs+0x20/0x20
[  406.636440]  ? filemap_map_pages+0xd92/0x1a20
[  406.640958]  ? find_get_entries_tag+0x1400/0x1400
[  406.645851]  ? debug_object_destroy+0x2b0/0x2b0
[  406.650529]  ? lock_pi_update_atomic+0x150/0x150
[  406.655322]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.660862]  ? lock_acquire+0x1ed/0x520
[  406.664832]  ? ext4_filemap_fault+0x7a/0xad
[  406.669157]  ? lock_release+0xa00/0xa00
[  406.673127]  ? perf_trace_sched_process_exec+0x860/0x860
[  406.678576]  ? print_usage_bug+0xc0/0xc0
[  406.682651]  ? print_usage_bug+0xc0/0xc0
[  406.686744]  ? down_read+0x8d/0x120
[  406.690398]  ? ext4_filemap_fault+0x7a/0xad
[  406.694726]  ? __down_interruptible+0x700/0x700
[  406.699395]  ext4_filemap_fault+0x82/0xad
[  406.703552]  __do_fault+0x100/0x6b0
[  406.707205]  ? pmd_devmap_trans_unstable+0x220/0x220
[  406.712308]  ? mark_held_locks+0x130/0x130
[  406.716538]  ? mark_held_locks+0x130/0x130
[  406.720788]  ? debug_smp_processor_id+0x1c/0x20
[  406.725465]  ? perf_trace_lock+0x14d/0x7a0
[  406.729716]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.735264]  __handle_mm_fault+0x3ea0/0x5be0
[  406.739690]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  406.744528]  ? lock_is_held_type+0x210/0x210
[  406.748984]  ? ksys_dup3+0x680/0x680
[  406.752712]  ? zap_class+0x640/0x640
[  406.756455]  ? zap_class+0x640/0x640
[  406.760165]  ? __x64_sys_futex+0x53e/0x6a0
[  406.764403]  ? find_held_lock+0x36/0x1c0
[  406.768474]  ? handle_mm_fault+0x42a/0xc70
[  406.772742]  ? lock_downgrade+0x900/0x900
[  406.776884]  ? check_preemption_disabled+0x48/0x280
[  406.781929]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  406.786853]  ? kasan_check_read+0x11/0x20
[  406.791049]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.796320]  ? rcu_softirq_qs+0x20/0x20
[  406.800807]  ? trace_hardirqs_off_caller+0x310/0x310
[  406.805942]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.811477]  ? check_preemption_disabled+0x48/0x280
[  406.816509]  handle_mm_fault+0x54f/0xc70
[  406.820568]  ? __handle_mm_fault+0x5be0/0x5be0
[  406.825155]  ? find_vma+0x34/0x190
[  406.828785]  __do_page_fault+0x5e8/0xe60
[  406.832841]  ? trace_hardirqs_off+0xb8/0x310
[  406.837253]  do_page_fault+0xf2/0x7e0
[  406.841084]  ? vmalloc_sync_all+0x30/0x30
[  406.845233]  ? error_entry+0x70/0xd0
[  406.848984]  ? trace_hardirqs_off_caller+0xbb/0x310
[  406.854014]  ? trace_hardirqs_on_caller+0xc0/0x310
[  406.858946]  ? syscall_return_slowpath+0x5e0/0x5e0
[  406.863878]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.868723]  ? trace_hardirqs_on_caller+0x310/0x310
[  406.873739]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  406.879200]  ? prepare_exit_to_usermode+0x291/0x3b0
[  406.884215]  ? page_fault+0x8/0x30
[  406.887763]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.892631]  ? page_fault+0x8/0x30
[  406.896170]  page_fault+0x1e/0x30
[  406.899621] RIP: 0033:0x40f9c0
[  406.902830] Code: Bad RIP value.
[  406.906193] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  406.911554] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  406.918821] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  406.926091] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  406.933360] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  406.940650] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  406.947935] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  406.947940] warn_alloc_show_mem: 1 callbacks suppressed
[  406.947947] Mem-Info:
[  406.954693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  406.960067] active_anon:54833 inactive_anon:712 isolated_anon:0
[  406.960067]  active_file:11 inactive_file:12 isolated_file:0
[  406.960067]  unevictable:0 dirty:0 writeback:0 unstable:0
[  406.960067]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  406.960067]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  406.960067]  free:13768 free_pcp:742 free_cma:0
[  406.962436] Call Trace:
[  406.971866] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  407.004711]  dump_stack+0x244/0x39d
[  407.007293] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  407.034893]  ? dump_stack_print_info.cold.1+0x20/0x20
[  407.038515] lowmem_reserve[]: 0 2818 6321 6321
[  407.064651]  warn_alloc.cold.116+0xb7/0x1bd
[  407.069807] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  407.074395]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  407.078705] lowmem_reserve[]: 0 0 3503 3503
[  407.106555]  ? lock_downgrade+0x900/0x900
[  407.111380] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  407.115706]  ? trace_hardirqs_off+0xb8/0x310
[  407.119821] lowmem_reserve[]: 0 0 0 0
[  407.148977]  ? trace_hardirqs_off+0xb8/0x310
[  407.153357] 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
[  407.157152]  __alloc_pages_slowpath+0x26e8/0x2e10
[  407.161554] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  407.175173]  ? warn_alloc+0x120/0x120
[  407.179971] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  407.195696]  ? print_usage_bug+0xc0/0xc0
[  407.199476] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  407.214804]  ? warn_alloc+0x120/0x120
[  407.218842] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  407.227670]  ? warn_alloc+0x120/0x120
[  407.231445] 782 total pagecache pages
[  407.240031]  ? print_usage_bug+0xc0/0xc0
[  407.243807] 0 pages in swap cache
[  407.247603]  ? print_usage_bug+0xc0/0xc0
[  407.251670] Swap cache stats: add 0, delete 0, find 0/0
[  407.255115]  ? __lock_acquire+0x62f/0x4c20
[  407.259145] Free swap  = 0kB
[  407.264500]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.268713] Total swap = 0kB
[  407.271728]  ? should_fail+0x22d/0xd01
[  407.277253] 1965979 pages RAM
[  407.280272]  ? __lock_acquire+0x62f/0x4c20
[  407.284141] 0 pages HighMem/MovableOnly
[  407.287242]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  407.291452] 342853 pages reserved
[  407.295415]  ? __lock_acquire+0x62f/0x4c20
[  407.300505] 0 pages cma reserved
[  407.303949]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  407.308235] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  407.311543]  ? __lock_acquire+0x62f/0x4c20
[  407.311556]  ? should_fail+0x22d/0xd01
[  407.311579]  ? mark_held_locks+0x130/0x130
[  407.316730] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  407.323159]  ? mark_held_locks+0x130/0x130
[  407.327366] syz-fuzzer cpuset=/ mems_allowed=0
[  407.331241]  ? zap_class+0x640/0x640
[  407.358145]  ? zap_class+0x640/0x640
[  407.361877]  ? print_usage_bug+0xc0/0xc0
[  407.365948]  ? mark_held_locks+0x130/0x130
[  407.370199]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.375737]  ? check_preemption_disabled+0x48/0x280
[  407.380786]  ? __lock_is_held+0xb5/0x140
[  407.384849]  __alloc_pages_nodemask+0xa80/0xde0
[  407.389515]  ? zap_class+0x640/0x640
[  407.393230]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  407.398247]  ? find_held_lock+0x36/0x1c0
[  407.402317]  ? ____cache_alloc_node+0x1c7/0x1e0
[  407.407028]  ? lock_downgrade+0x900/0x900
[  407.411193]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.416746]  cache_grow_begin+0xa5/0x8c0
[  407.420806]  ? do_raw_spin_unlock+0xa7/0x330
[  407.425216]  fallback_alloc+0x204/0x2e0
[  407.429196]  ____cache_alloc_node+0x1c7/0x1e0
[  407.433697]  kmem_cache_alloc_node+0xe3/0x730
[  407.438197]  ? ipv6_get_ifaddr+0x42e/0x620
[  407.442441]  __alloc_skb+0x119/0x770
[  407.446153]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.451444]  ? netdev_alloc_frag+0x1f0/0x1f0
[  407.455850]  ? lock_downgrade+0x900/0x900
[  407.460023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.465571]  ? refcount_sub_and_test_checked+0x203/0x310
[  407.471027]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  407.476497]  ? addrconf_rs_timer+0x690/0x690
[  407.480922]  ndisc_alloc_skb+0x144/0x340
[  407.484996]  ndisc_send_rs+0x331/0x6e0
[  407.488903]  addrconf_rs_timer+0x314/0x690
[  407.493139]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.497395]  call_timer_fn+0x272/0x920
[  407.501284]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.505514]  ? process_timeout+0x40/0x40
[  407.509598]  ? __run_timers+0x7da/0xc70
[  407.513606]  ? _raw_spin_unlock_irq+0x27/0x80
[  407.518114]  ? _raw_spin_unlock_irq+0x27/0x80
[  407.522604]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.526834]  ? lockdep_hardirqs_on+0x296/0x5b0
[  407.531433]  ? trace_hardirqs_on+0xbd/0x310
[  407.535752]  ? kasan_check_read+0x11/0x20
[  407.539912]  ? __run_timers+0x7da/0xc70
[  407.543900]  ? trace_hardirqs_off_caller+0x310/0x310
[  407.549023]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.553252]  __run_timers+0x7e5/0xc70
[  407.557080]  ? timer_fixup_init+0x70/0x70
[  407.561270]  ? _raw_spin_unlock_irq+0x27/0x80
[  407.565785]  ? _raw_spin_unlock_irq+0x27/0x80
[  407.570288]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  407.574886]  ? trace_hardirqs_on+0xbd/0x310
[  407.579224]  ? kasan_check_read+0x11/0x20
[  407.583375]  ? finish_task_switch+0x1f4/0x910
[  407.587868]  ? trace_hardirqs_off_caller+0x310/0x310
[  407.592966]  ? compat_start_thread+0x80/0x80
[  407.597390]  ? pvclock_read_flags+0x160/0x160
[  407.601879]  ? __switch_to_asm+0x34/0x70
[  407.605943]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.611479]  ? check_preemption_disabled+0x48/0x280
[  407.616522]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  407.622062]  ? rcu_pm_notify+0xc0/0xc0
[  407.625948]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.631499]  ? check_preemption_disabled+0x48/0x280
[  407.636519]  run_timer_softirq+0x52/0xb0
[  407.640575]  ? rcu_read_lock_sched_held+0x14f/0x180
[  407.645598]  __do_softirq+0x308/0xb7e
[  407.649394]  ? retint_kernel+0x2d/0x2d
[  407.653283]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  407.658391]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  407.663832]  ? trace_hardirqs_on+0x310/0x310
[  407.668491]  ? schedule+0x108/0x460
[  407.672142]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  407.676896]  ? trace_hardirqs_off+0xb8/0x310
[  407.681299]  ? smpboot_thread_fn+0x68b/0xa00
[  407.685698]  ? trace_hardirqs_on+0x310/0x310
[  407.690103]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.695635]  ? check_preemption_disabled+0x48/0x280
[  407.700656]  ? takeover_tasklets+0xa90/0xa90
[  407.705084]  run_ksoftirqd+0x5e/0x100
[  407.708909]  smpboot_thread_fn+0x68b/0xa00
[  407.713160]  ? sort_range+0x30/0x30
[  407.716781]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  407.721878]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.727411]  ? __kthread_parkme+0xfb/0x1a0
[  407.731640]  ? sort_range+0x30/0x30
[  407.735258]  kthread+0x35a/0x440
[  407.738633]  ? kthread_stop+0x900/0x900
[  407.742619]  ret_from_fork+0x3a/0x50
[  407.746352] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  407.746437] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  407.753289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  407.753294] Call Trace:
[  407.753316]  <IRQ>
[  407.753333]  dump_stack+0x244/0x39d
[  407.753364]  ? dump_stack_print_info.cold.1+0x20/0x20
[  407.759924] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  407.769216]  warn_alloc.cold.116+0xb7/0x1bd
[  407.771778] ksoftirqd/0 cpuset=/ mems_allowed=0
[  407.773924]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  407.806781]  ? lock_downgrade+0x900/0x900
[  407.810935]  ? trace_hardirqs_off+0xb8/0x310
[  407.815375]  ? trace_hardirqs_off+0xb8/0x310
[  407.819790]  __alloc_pages_slowpath+0x26e8/0x2e10
[  407.824653]  ? warn_alloc+0x120/0x120
[  407.828459]  ? print_usage_bug+0xc0/0xc0
[  407.832512]  ? warn_alloc+0x120/0x120
[  407.836309]  ? warn_alloc+0x120/0x120
[  407.840119]  ? print_usage_bug+0xc0/0xc0
[  407.844178]  ? print_usage_bug+0xc0/0xc0
[  407.848233]  ? __lock_acquire+0x62f/0x4c20
[  407.852466]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.858016]  ? should_fail+0x22d/0xd01
[  407.861904]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  407.867047]  ? __lock_acquire+0x62f/0x4c20
[  407.871278]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  407.876375]  ? __lock_acquire+0x62f/0x4c20
[  407.880599]  ? should_fail+0x22d/0xd01
[  407.884495]  ? find_held_lock+0x36/0x1c0
[  407.888586]  ? mark_held_locks+0x130/0x130
[  407.892820]  ? mark_held_locks+0x130/0x130
[  407.897046]  ? zap_class+0x640/0x640
[  407.900750]  ? zap_class+0x640/0x640
[  407.904462]  ? print_usage_bug+0xc0/0xc0
[  407.908515]  ? do_raw_spin_unlock+0xa7/0x330
[  407.912919]  ? zap_class+0x640/0x640
[  407.916622]  ? print_usage_bug+0xc0/0xc0
[  407.920715]  ? wq_watchdog_touch+0x9c/0xfe
[  407.924942]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.930499]  ? check_preemption_disabled+0x48/0x280
[  407.935534]  ? __lock_is_held+0xb5/0x140
[  407.939597]  __alloc_pages_nodemask+0xa80/0xde0
[  407.944266]  ? zap_class+0x640/0x640
[  407.947984]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  407.953021]  ? find_held_lock+0x36/0x1c0
[  407.957089]  ? ____cache_alloc_node+0x1c7/0x1e0
[  407.961753]  ? lock_downgrade+0x900/0x900
[  407.965910]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.971446]  cache_grow_begin+0xa5/0x8c0
[  407.975502]  ? do_raw_spin_unlock+0xa7/0x330
[  407.979908]  fallback_alloc+0x204/0x2e0
[  407.983882]  ____cache_alloc_node+0x1c7/0x1e0
[  407.988377]  kmem_cache_alloc_node+0xe3/0x730
[  407.992867]  ? ipv6_get_ifaddr+0x42e/0x620
[  407.997102]  __alloc_skb+0x119/0x770
[  408.000855]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.006164]  ? netdev_alloc_frag+0x1f0/0x1f0
[  408.010598]  ? lock_downgrade+0x900/0x900
[  408.014802]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.020335]  ? refcount_sub_and_test_checked+0x203/0x310
[  408.025799]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  408.031257]  ? addrconf_rs_timer+0x690/0x690
[  408.035678]  ndisc_alloc_skb+0x144/0x340
[  408.039733]  ndisc_send_rs+0x331/0x6e0
[  408.043614]  addrconf_rs_timer+0x314/0x690
[  408.047860]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.052120]  call_timer_fn+0x272/0x920
[  408.056022]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.060247]  ? process_timeout+0x40/0x40
[  408.064318]  ? mark_held_locks+0xc7/0x130
[  408.068506]  ? _raw_spin_unlock_irq+0x27/0x80
[  408.072993]  ? _raw_spin_unlock_irq+0x27/0x80
[  408.077510]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.081771]  ? lockdep_hardirqs_on+0x296/0x5b0
[  408.086398]  ? trace_hardirqs_on+0xbd/0x310
[  408.090736]  ? kasan_check_read+0x11/0x20
[  408.094876]  ? __run_timers+0x7da/0xc70
[  408.098868]  ? trace_hardirqs_off_caller+0x310/0x310
[  408.104018]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.108251]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  408.112478]  __run_timers+0x7e5/0xc70
[  408.116285]  ? timer_fixup_init+0x70/0x70
[  408.120433]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  408.125443]  ? zap_class+0x640/0x640
[  408.129159]  ? print_usage_bug+0xc0/0xc0
[  408.133237]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  408.138510]  ? find_held_lock+0x36/0x1c0
[  408.142586]  ? zap_class+0x640/0x640
[  408.146330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.151865]  ? check_preemption_disabled+0x48/0x280
[  408.156888]  ? __lock_is_held+0xb5/0x140
[  408.160949]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.166503]  ? check_preemption_disabled+0x48/0x280
[  408.171536]  run_timer_softirq+0x52/0xb0
[  408.175595]  ? rcu_read_lock_sched_held+0x14f/0x180
[  408.180614]  __do_softirq+0x308/0xb7e
[  408.184439]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  408.188935]  ? lock_downgrade+0x900/0x900
[  408.193091]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  408.198199]  ? pvclock_read_flags+0x160/0x160
[  408.202692]  ? lapic_next_event+0x5a/0x90
[  408.206846]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.212384]  ? kvm_clock_read+0x18/0x30
[  408.216354]  ? kvm_sched_clock_read+0x9/0x20
[  408.220760]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.226300]  ? check_preemption_disabled+0x48/0x280
[  408.231339]  irq_exit+0x17f/0x1c0
[  408.234795]  smp_apic_timer_interrupt+0x1cb/0x760
[  408.239633]  ? smp_call_function_single_interrupt+0x159/0x650
[  408.245513]  ? smp_call_function_single_interrupt+0x650/0x650
[  408.251415]  ? interrupt_entry+0xb5/0xc0
[  408.255495]  ? trace_hardirqs_off_caller+0xbb/0x310
[  408.260505]  ? trace_hardirqs_off_caller+0xbb/0x310
[  408.265522]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  408.270357]  ? trace_hardirqs_on_caller+0x310/0x310
[  408.275393]  ? trace_hardirqs_on_caller+0x310/0x310
[  408.280420]  ? task_prio+0x50/0x50
[  408.283978]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.289524]  ? check_preemption_disabled+0x48/0x280
[  408.294556]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  408.299424]  apic_timer_interrupt+0xf/0x20
[  408.303651]  </IRQ>
[  408.305899] RIP: 0010:dump_stack+0x358/0x39d
[  408.310321] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  408.329220] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  408.336929] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  408.344194] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  408.351461] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  408.358741] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  408.366020] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  408.373303]  ? dump_stack+0x34f/0x39d
[  408.377117]  ? dump_stack_print_info.cold.1+0x20/0x20
[  408.382310]  ? mark_held_locks+0x130/0x130
[  408.386560]  ? mark_held_locks+0x130/0x130
[  408.390799]  dump_header+0x27b/0xf72
[  408.394527]  ? pagefault_out_of_memory+0x197/0x197
[  408.399461]  ? __lock_acquire+0x62f/0x4c20
[  408.403697]  ? percpu_ref_get_many+0x240/0x240
[  408.408300]  ? print_usage_bug+0xc0/0xc0
[  408.412382]  ? zap_class+0x640/0x640
[  408.416111]  ? print_usage_bug+0xc0/0xc0
[  408.420171]  ? print_usage_bug+0xc0/0xc0
[  408.424248]  ? zap_class+0x640/0x640
[  408.427976]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.433526]  ? find_held_lock+0x36/0x1c0
[  408.437593]  ? mark_held_locks+0xc7/0x130
[  408.441743]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  408.446846]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  408.451957]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  408.456538]  ? trace_hardirqs_on+0xbd/0x310
[  408.460864]  ? kasan_check_read+0x11/0x20
[  408.465024]  ? ___ratelimit+0x3b4/0x672
[  408.469031]  ? trace_hardirqs_off_caller+0x310/0x310
[  408.474130]  ? trace_hardirqs_on+0x310/0x310
[  408.478535]  ? lock_downgrade+0x900/0x900
[  408.482718]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  408.487848]  ? ___ratelimit+0x3b9/0x672
[  408.491815]  ? idr_get_free+0xf70/0xf70
[  408.495786]  ? find_held_lock+0x36/0x1c0
[  408.499849]  oom_kill_process.cold.27+0x10/0x903
[  408.504609]  ? zap_class+0x640/0x640
[  408.508322]  ? check_preemption_disabled+0x48/0x280
[  408.513343]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  408.518269]  ? kasan_check_read+0x11/0x20
[  408.522417]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.527710]  ? oom_evaluate_task+0x540/0x540
[  408.532119]  ? find_held_lock+0x36/0x1c0
[  408.536203]  ? out_of_memory+0x974/0x1430
[  408.540364]  ? lock_downgrade+0x900/0x900
[  408.544540]  ? check_preemption_disabled+0x48/0x280
[  408.549562]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  408.554485]  ? kasan_check_read+0x11/0x20
[  408.558637]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.563927]  ? rcu_softirq_qs+0x20/0x20
[  408.567903]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.573435]  ? oom_evaluate_task+0x302/0x540
[  408.577872]  out_of_memory+0xa84/0x1430
[  408.581878]  ? oom_killer_disable+0x3a0/0x3a0
[  408.586402]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  408.591331]  ? __ww_mutex_check_waiters+0x160/0x160
[  408.596357]  __alloc_pages_slowpath+0x2354/0x2e10
[  408.601225]  ? warn_alloc+0x120/0x120
[  408.605026]  ? mark_held_locks+0x130/0x130
[  408.609265]  ? find_get_entry+0xaae/0x1120
[  408.613510]  ? filemap_map_pages+0x1a20/0x1a20
[  408.618096]  ? zap_class+0x640/0x640
[  408.621818]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.627357]  ? check_preemption_disabled+0x48/0x280
[  408.632373]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.637929]  ? should_fail+0x22d/0xd01
[  408.641825]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  408.646937]  ? zap_class+0x640/0x640
[  408.650671]  ? __lock_is_held+0xb5/0x140
[  408.654792]  ? mark_held_locks+0x130/0x130
[  408.659044]  ? lock_release+0xa00/0xa00
[  408.663056]  ? perf_trace_sched_process_exec+0x860/0x860
[  408.668517]  ? xa_load+0x2ba/0x460
[  408.672056]  ? lock_downgrade+0x900/0x900
[  408.676220]  ? __might_sleep+0x95/0x190
[  408.680197]  __alloc_pages_nodemask+0xa80/0xde0
[  408.684882]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  408.689898]  ? __page_cache_alloc+0x191/0x5c0
[  408.694390]  ? xa_load+0x2e1/0x460
[  408.697930]  ? xa_clear_mark+0x40/0x40
[  408.701818]  ? zap_class+0x640/0x640
[  408.705573]  ? zap_class+0x640/0x640
[  408.709298]  ? zap_class+0x640/0x640
[  408.713097]  ? __do_page_cache_readahead+0x663/0x810
[  408.718232]  ? find_held_lock+0x36/0x1c0
[  408.722294]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  408.727886]  alloc_pages_current+0x173/0x350
[  408.732302]  __page_cache_alloc+0x38c/0x5c0
[  408.736633]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  408.741561]  ? kasan_check_read+0x11/0x20
[  408.745720]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.750996]  ? generic_perform_write+0x6a0/0x6a0
[  408.755770]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.761306]  ? check_preemption_disabled+0x48/0x280
[  408.766333]  filemap_fault+0x1595/0x25f0
[  408.770397]  ? __lock_page_or_retry+0xa00/0xa00
[  408.775086]  ? mark_held_locks+0x130/0x130
[  408.779352]  ? filemap_map_pages+0xd6b/0x1a20
[  408.783839]  ? lock_downgrade+0x900/0x900
[  408.787976]  ? check_preemption_disabled+0x48/0x280
[  408.793040]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  408.797994]  ? kasan_check_read+0x11/0x20
[  408.802654]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.808355]  ? rcu_softirq_qs+0x20/0x20
[  408.812337]  ? filemap_map_pages+0xd92/0x1a20
[  408.816839]  ? find_get_entries_tag+0x1400/0x1400
[  408.821677]  ? debug_object_destroy+0x2b0/0x2b0
[  408.826352]  ? lock_pi_update_atomic+0x150/0x150
[  408.831118]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.836675]  ? lock_acquire+0x1ed/0x520
[  408.840642]  ? ext4_filemap_fault+0x7a/0xad
[  408.844962]  ? lock_release+0xa00/0xa00
[  408.848927]  ? perf_trace_sched_process_exec+0x860/0x860
[  408.854384]  ? print_usage_bug+0xc0/0xc0
[  408.858454]  ? print_usage_bug+0xc0/0xc0
[  408.862552]  ? down_read+0x8d/0x120
[  408.866186]  ? ext4_filemap_fault+0x7a/0xad
[  408.870501]  ? __down_interruptible+0x700/0x700
[  408.875200]  ext4_filemap_fault+0x82/0xad
[  408.879345]  __do_fault+0x100/0x6b0
[  408.882989]  ? pmd_devmap_trans_unstable+0x220/0x220
[  408.888099]  ? mark_held_locks+0x130/0x130
[  408.892331]  ? mark_held_locks+0x130/0x130
[  408.896576]  ? debug_smp_processor_id+0x1c/0x20
[  408.901254]  ? perf_trace_lock+0x14d/0x7a0
[  408.905511]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.911075]  __handle_mm_fault+0x3ea0/0x5be0
[  408.915498]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  408.920344]  ? lock_is_held_type+0x210/0x210
[  408.924768]  ? ksys_dup3+0x680/0x680
[  408.928506]  ? zap_class+0x640/0x640
[  408.932227]  ? zap_class+0x640/0x640
[  408.935976]  ? __x64_sys_futex+0x53e/0x6a0
[  408.940236]  ? find_held_lock+0x36/0x1c0
[  408.944297]  ? handle_mm_fault+0x42a/0xc70
[  408.948528]  ? lock_downgrade+0x900/0x900
[  408.952669]  ? check_preemption_disabled+0x48/0x280
[  408.957679]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  408.962671]  ? kasan_check_read+0x11/0x20
[  408.966838]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.972119]  ? rcu_softirq_qs+0x20/0x20
[  408.976088]  ? trace_hardirqs_off_caller+0x310/0x310
[  408.981190]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.986718]  ? check_preemption_disabled+0x48/0x280
[  408.991731]  handle_mm_fault+0x54f/0xc70
[  408.995794]  ? __handle_mm_fault+0x5be0/0x5be0
[  409.000396]  ? find_vma+0x34/0x190
[  409.003969]  __do_page_fault+0x5e8/0xe60
[  409.008065]  ? trace_hardirqs_off+0xb8/0x310
[  409.012481]  do_page_fault+0xf2/0x7e0
[  409.016301]  ? vmalloc_sync_all+0x30/0x30
[  409.020442]  ? error_entry+0x70/0xd0
[  409.024164]  ? trace_hardirqs_off_caller+0xbb/0x310
[  409.029204]  ? trace_hardirqs_on_caller+0xc0/0x310
[  409.034181]  ? syscall_return_slowpath+0x5e0/0x5e0
[  409.039105]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.043974]  ? trace_hardirqs_on_caller+0x310/0x310
[  409.048998]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  409.054452]  ? prepare_exit_to_usermode+0x291/0x3b0
[  409.059458]  ? page_fault+0x8/0x30
[  409.062989]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.067828]  ? page_fault+0x8/0x30
[  409.071390]  page_fault+0x1e/0x30
[  409.074849] RIP: 0033:0x40f9c0
[  409.078085] Code: Bad RIP value.
[  409.081440] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  409.086803] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  409.094081] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  409.101351] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  409.108659] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  409.115960] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  409.123245] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  409.123250] warn_alloc_show_mem: 1 callbacks suppressed
[  409.123256] Mem-Info:
[  409.130049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  409.135412] active_anon:54833 inactive_anon:712 isolated_anon:0
[  409.135412]  active_file:11 inactive_file:12 isolated_file:0
[  409.135412]  unevictable:0 dirty:0 writeback:0 unstable:0
[  409.135412]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  409.135412]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  409.135412]  free:13768 free_pcp:742 free_cma:0
[  409.137784] Call Trace:
[  409.147165] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  409.180019]  dump_stack+0x244/0x39d
[  409.182576] 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
[  409.210176]  ? dump_stack_print_info.cold.1+0x20/0x20
[  409.213771] lowmem_reserve[]: 0 2818 6321 6321
[  409.239870]  warn_alloc.cold.116+0xb7/0x1bd
[  409.245043] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  409.249627]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  409.253920] lowmem_reserve[]: 0 0 3503 3503
[  409.281671]  ? lock_downgrade+0x900/0x900
[  409.286488] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  409.290816]  ? trace_hardirqs_off+0xb8/0x310
[  409.294935] lowmem_reserve[]: 0 0 0 0
[  409.324075]  ? trace_hardirqs_off+0xb8/0x310
[  409.328472] 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
[  409.332268]  __alloc_pages_slowpath+0x26e8/0x2e10
[  409.336641] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  409.350208]  ? warn_alloc+0x120/0x120
[  409.355028] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  409.370726]  ? print_usage_bug+0xc0/0xc0
[  409.374533] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  409.389857]  ? warn_alloc+0x120/0x120
[  409.393895] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  409.402710]  ? warn_alloc+0x120/0x120
[  409.406479] 782 total pagecache pages
[  409.415079]  ? print_usage_bug+0xc0/0xc0
[  409.418891] 0 pages in swap cache
[  409.422686]  ? print_usage_bug+0xc0/0xc0
[  409.426734] Swap cache stats: add 0, delete 0, find 0/0
[  409.430173]  ? __lock_acquire+0x62f/0x4c20
[  409.434212] Free swap  = 0kB
[  409.439571]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.443771] Total swap = 0kB
[  409.443783] 1965979 pages RAM
[  409.446792]  ? should_fail+0x22d/0xd01
[  409.452294] 0 pages HighMem/MovableOnly
[  409.452302] 342853 pages reserved
[  409.455311]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  409.458413] 0 pages cma reserved
[  409.462331]  ? __lock_acquire+0x62f/0x4c20
[  409.466398] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  409.469793]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  409.469804]  ? __lock_acquire+0x62f/0x4c20
[  409.469815]  ? should_fail+0x22d/0xd01
[  409.469828]  ? find_held_lock+0x36/0x1c0
[  409.474972] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  409.478280]  ? mark_held_locks+0x130/0x130
[  409.482493] syz-fuzzer cpuset=/ mems_allowed=0
[  409.488973]  ? mark_held_locks+0x130/0x130
[  409.529379]  ? zap_class+0x640/0x640
[  409.533117]  ? mark_held_locks+0xc7/0x130
[  409.537273]  ? do_raw_spin_unlock+0xa7/0x330
[  409.541680]  ? zap_class+0x640/0x640
[  409.545386]  ? print_usage_bug+0xc0/0xc0
[  409.549444]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.554997]  ? check_preemption_disabled+0x48/0x280
[  409.560043]  ? __lock_is_held+0xb5/0x140
[  409.564103]  __alloc_pages_nodemask+0xa80/0xde0
[  409.568784]  ? zap_class+0x640/0x640
[  409.572501]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  409.577545]  ? find_held_lock+0x36/0x1c0
[  409.581616]  ? ____cache_alloc_node+0x1c7/0x1e0
[  409.586284]  ? lock_downgrade+0x900/0x900
[  409.590446]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.595983]  cache_grow_begin+0xa5/0x8c0
[  409.600048]  ? do_raw_spin_unlock+0xa7/0x330
[  409.604460]  fallback_alloc+0x204/0x2e0
[  409.608442]  ____cache_alloc_node+0x1c7/0x1e0
[  409.612939]  kmem_cache_alloc_node+0xe3/0x730
[  409.617456]  ? ipv6_get_ifaddr+0x42e/0x620
[  409.621737]  __alloc_skb+0x119/0x770
[  409.625443]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.630714]  ? netdev_alloc_frag+0x1f0/0x1f0
[  409.635115]  ? lock_downgrade+0x900/0x900
[  409.639265]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.644808]  ? refcount_sub_and_test_checked+0x203/0x310
[  409.650259]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  409.655723]  ? addrconf_rs_timer+0x690/0x690
[  409.660163]  ndisc_alloc_skb+0x144/0x340
[  409.664237]  ndisc_send_rs+0x331/0x6e0
[  409.668366]  addrconf_rs_timer+0x314/0x690
[  409.672597]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.676864]  call_timer_fn+0x272/0x920
[  409.680747]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.684993]  ? process_timeout+0x40/0x40
[  409.689073]  ? __run_timers+0x7da/0xc70
[  409.693044]  ? _raw_spin_unlock_irq+0x27/0x80
[  409.697544]  ? _raw_spin_unlock_irq+0x27/0x80
[  409.702035]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.706261]  ? lockdep_hardirqs_on+0x296/0x5b0
[  409.710858]  ? trace_hardirqs_on+0xbd/0x310
[  409.715181]  ? kasan_check_read+0x11/0x20
[  409.719323]  ? __run_timers+0x7da/0xc70
[  409.723294]  ? trace_hardirqs_off_caller+0x310/0x310
[  409.728398]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.732638]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.736881]  __run_timers+0x7e5/0xc70
[  409.740749]  ? timer_fixup_init+0x70/0x70
[  409.744920]  ? _raw_spin_unlock_irq+0x27/0x80
[  409.749409]  ? _raw_spin_unlock_irq+0x27/0x80
[  409.753940]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  409.758528]  ? trace_hardirqs_on+0xbd/0x310
[  409.762841]  ? kasan_check_read+0x11/0x20
[  409.766983]  ? finish_task_switch+0x1f4/0x910
[  409.771481]  ? trace_hardirqs_off_caller+0x310/0x310
[  409.776575]  ? compat_start_thread+0x80/0x80
[  409.781021]  ? pvclock_read_flags+0x160/0x160
[  409.785515]  ? __switch_to_asm+0x34/0x70
[  409.789575]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.795134]  ? check_preemption_disabled+0x48/0x280
[  409.800174]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  409.805707]  ? rcu_pm_notify+0xc0/0xc0
[  409.809602]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.815132]  ? check_preemption_disabled+0x48/0x280
[  409.820142]  run_timer_softirq+0x52/0xb0
[  409.824208]  ? rcu_read_lock_sched_held+0x14f/0x180
[  409.829214]  __do_softirq+0x308/0xb7e
[  409.833014]  ? retint_kernel+0x2d/0x2d
[  409.836923]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  409.842037]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  409.847494]  ? trace_hardirqs_on+0x310/0x310
[  409.851898]  ? schedule+0x108/0x460
[  409.855524]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  409.860284]  ? trace_hardirqs_off+0xb8/0x310
[  409.864702]  ? smpboot_thread_fn+0x68b/0xa00
[  409.869105]  ? trace_hardirqs_on+0x310/0x310
[  409.873538]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.879099]  ? check_preemption_disabled+0x48/0x280
[  409.884110]  ? takeover_tasklets+0xa90/0xa90
[  409.888530]  run_ksoftirqd+0x5e/0x100
[  409.892336]  smpboot_thread_fn+0x68b/0xa00
[  409.896560]  ? sort_range+0x30/0x30
[  409.900176]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  409.905288]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.910818]  ? __kthread_parkme+0xfb/0x1a0
[  409.915070]  ? sort_range+0x30/0x30
[  409.918688]  kthread+0x35a/0x440
[  409.922064]  ? kthread_stop+0x900/0x900
[  409.926105]  ret_from_fork+0x3a/0x50
[  409.929823] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  409.929919] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  409.936749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  409.936756] Call Trace:
[  409.943339] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  409.952595]  <IRQ>
[  409.955158] ksoftirqd/0 cpuset=/ mems_allowed=0
[  409.965457]  dump_stack+0x244/0x39d
[  409.975903]  ? dump_stack_print_info.cold.1+0x20/0x20
[  409.981108]  warn_alloc.cold.116+0xb7/0x1bd
[  409.985428]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  409.990271]  ? lock_downgrade+0x900/0x900
[  409.994420]  ? trace_hardirqs_off+0xb8/0x310
[  409.998826]  ? trace_hardirqs_off+0xb8/0x310
[  410.003235]  __alloc_pages_slowpath+0x26e8/0x2e10
[  410.008154]  ? warn_alloc+0x120/0x120
[  410.011951]  ? print_usage_bug+0xc0/0xc0
[  410.016015]  ? warn_alloc+0x120/0x120
[  410.019820]  ? warn_alloc+0x120/0x120
[  410.023619]  ? print_usage_bug+0xc0/0xc0
[  410.027727]  ? print_usage_bug+0xc0/0xc0
[  410.031794]  ? __lock_acquire+0x62f/0x4c20
[  410.036039]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.041572]  ? should_fail+0x22d/0xd01
[  410.045455]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  410.050550]  ? __lock_acquire+0x62f/0x4c20
[  410.054785]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  410.059879]  ? __lock_acquire+0x62f/0x4c20
[  410.064120]  ? should_fail+0x22d/0xd01
[  410.068011]  ? find_held_lock+0x36/0x1c0
[  410.072089]  ? mark_held_locks+0x130/0x130
[  410.076348]  ? mark_held_locks+0x130/0x130
[  410.080611]  ? zap_class+0x640/0x640
[  410.084336]  ? zap_class+0x640/0x640
[  410.088053]  ? print_usage_bug+0xc0/0xc0
[  410.092106]  ? do_raw_spin_unlock+0xa7/0x330
[  410.096510]  ? zap_class+0x640/0x640
[  410.100219]  ? print_usage_bug+0xc0/0xc0
[  410.104275]  ? wq_watchdog_touch+0x9c/0xfe
[  410.108507]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.114043]  ? check_preemption_disabled+0x48/0x280
[  410.119078]  ? __lock_is_held+0xb5/0x140
[  410.123148]  __alloc_pages_nodemask+0xa80/0xde0
[  410.127830]  ? zap_class+0x640/0x640
[  410.131544]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  410.136568]  ? find_held_lock+0x36/0x1c0
[  410.140647]  ? ____cache_alloc_node+0x1c7/0x1e0
[  410.145326]  ? lock_downgrade+0x900/0x900
[  410.149493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.155040]  cache_grow_begin+0xa5/0x8c0
[  410.159094]  ? do_raw_spin_unlock+0xa7/0x330
[  410.163511]  fallback_alloc+0x204/0x2e0
[  410.167500]  ____cache_alloc_node+0x1c7/0x1e0
[  410.171996]  kmem_cache_alloc_node+0xe3/0x730
[  410.176528]  ? ipv6_get_ifaddr+0x42e/0x620
[  410.180801]  __alloc_skb+0x119/0x770
[  410.184511]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.189812]  ? netdev_alloc_frag+0x1f0/0x1f0
[  410.194215]  ? lock_downgrade+0x900/0x900
[  410.198379]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.203913]  ? refcount_sub_and_test_checked+0x203/0x310
[  410.209360]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  410.214804]  ? addrconf_rs_timer+0x690/0x690
[  410.219212]  ndisc_alloc_skb+0x144/0x340
[  410.223275]  ndisc_send_rs+0x331/0x6e0
[  410.227160]  addrconf_rs_timer+0x314/0x690
[  410.231424]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.235677]  call_timer_fn+0x272/0x920
[  410.239562]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.243801]  ? process_timeout+0x40/0x40
[  410.247866]  ? mark_held_locks+0xc7/0x130
[  410.252030]  ? _raw_spin_unlock_irq+0x27/0x80
[  410.256566]  ? _raw_spin_unlock_irq+0x27/0x80
[  410.261067]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.265307]  ? lockdep_hardirqs_on+0x296/0x5b0
[  410.269891]  ? trace_hardirqs_on+0xbd/0x310
[  410.274206]  ? kasan_check_read+0x11/0x20
[  410.278368]  ? __run_timers+0x7da/0xc70
[  410.282347]  ? trace_hardirqs_off_caller+0x310/0x310
[  410.287469]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.291728]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.295959]  __run_timers+0x7e5/0xc70
[  410.299769]  ? timer_fixup_init+0x70/0x70
[  410.303923]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  410.308940]  ? zap_class+0x640/0x640
[  410.312696]  ? print_usage_bug+0xc0/0xc0
[  410.316792]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  410.321988]  ? find_held_lock+0x36/0x1c0
[  410.326079]  ? zap_class+0x640/0x640
[  410.329829]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.335361]  ? check_preemption_disabled+0x48/0x280
[  410.340381]  ? __lock_is_held+0xb5/0x140
[  410.344466]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.350052]  ? check_preemption_disabled+0x48/0x280
[  410.355075]  run_timer_softirq+0x52/0xb0
[  410.359137]  ? rcu_read_lock_sched_held+0x14f/0x180
[  410.364151]  __do_softirq+0x308/0xb7e
[  410.367955]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  410.372443]  ? lock_downgrade+0x900/0x900
[  410.376628]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  410.381734]  ? pvclock_read_flags+0x160/0x160
[  410.386241]  ? lapic_next_event+0x5a/0x90
[  410.390386]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.395922]  ? kvm_clock_read+0x18/0x30
[  410.399890]  ? kvm_sched_clock_read+0x9/0x20
[  410.404294]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.409825]  ? check_preemption_disabled+0x48/0x280
[  410.414866]  irq_exit+0x17f/0x1c0
[  410.418318]  smp_apic_timer_interrupt+0x1cb/0x760
[  410.423162]  ? smp_call_function_single_interrupt+0x159/0x650
[  410.429042]  ? smp_call_function_single_interrupt+0x650/0x650
[  410.434946]  ? interrupt_entry+0xb5/0xc0
[  410.439029]  ? trace_hardirqs_off_caller+0xbb/0x310
[  410.444044]  ? trace_hardirqs_off_caller+0xbb/0x310
[  410.449066]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  410.453909]  ? trace_hardirqs_on_caller+0x310/0x310
[  410.458926]  ? trace_hardirqs_on_caller+0x310/0x310
[  410.463941]  ? task_prio+0x50/0x50
[  410.467484]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.473028]  ? check_preemption_disabled+0x48/0x280
[  410.478062]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  410.482930]  apic_timer_interrupt+0xf/0x20
[  410.487157]  </IRQ>
[  410.489394] RIP: 0010:dump_stack+0x358/0x39d
[  410.493807] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  410.512702] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  410.520406] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  410.527696] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  410.534957] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  410.542234] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  410.549509] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  410.556789]  ? dump_stack+0x34f/0x39d
[  410.560607]  ? dump_stack_print_info.cold.1+0x20/0x20
[  410.565799]  ? mark_held_locks+0x130/0x130
[  410.570032]  ? mark_held_locks+0x130/0x130
[  410.574266]  dump_header+0x27b/0xf72
[  410.578015]  ? pagefault_out_of_memory+0x197/0x197
[  410.582952]  ? __lock_acquire+0x62f/0x4c20
[  410.587195]  ? percpu_ref_get_many+0x240/0x240
[  410.591770]  ? print_usage_bug+0xc0/0xc0
[  410.595834]  ? zap_class+0x640/0x640
[  410.599556]  ? print_usage_bug+0xc0/0xc0
[  410.603625]  ? print_usage_bug+0xc0/0xc0
[  410.607714]  ? zap_class+0x640/0x640
[  410.611518]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.617060]  ? find_held_lock+0x36/0x1c0
[  410.621128]  ? mark_held_locks+0xc7/0x130
[  410.625276]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  410.630375]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  410.635474]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  410.640059]  ? trace_hardirqs_on+0xbd/0x310
[  410.644393]  ? kasan_check_read+0x11/0x20
[  410.648567]  ? ___ratelimit+0x3b4/0x672
[  410.652562]  ? trace_hardirqs_off_caller+0x310/0x310
[  410.657691]  ? trace_hardirqs_on+0x310/0x310
[  410.662114]  ? lock_downgrade+0x900/0x900
[  410.666264]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  410.671364]  ? ___ratelimit+0x3b9/0x672
[  410.675334]  ? idr_get_free+0xf70/0xf70
[  410.679304]  ? find_held_lock+0x36/0x1c0
[  410.683383]  oom_kill_process.cold.27+0x10/0x903
[  410.688163]  ? zap_class+0x640/0x640
[  410.691875]  ? check_preemption_disabled+0x48/0x280
[  410.696889]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  410.701817]  ? kasan_check_read+0x11/0x20
[  410.705968]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.711255]  ? oom_evaluate_task+0x540/0x540
[  410.715664]  ? find_held_lock+0x36/0x1c0
[  410.719730]  ? out_of_memory+0x974/0x1430
[  410.723873]  ? lock_downgrade+0x900/0x900
[  410.728023]  ? check_preemption_disabled+0x48/0x280
[  410.733040]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  410.737964]  ? kasan_check_read+0x11/0x20
[  410.742106]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.747409]  ? rcu_softirq_qs+0x20/0x20
[  410.751386]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.756915]  ? oom_evaluate_task+0x302/0x540
[  410.761323]  out_of_memory+0xa84/0x1430
[  410.765300]  ? oom_killer_disable+0x3a0/0x3a0
[  410.769802]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  410.774735]  ? __ww_mutex_check_waiters+0x160/0x160
[  410.779756]  __alloc_pages_slowpath+0x2354/0x2e10
[  410.784643]  ? warn_alloc+0x120/0x120
[  410.788441]  ? mark_held_locks+0x130/0x130
[  410.792694]  ? find_get_entry+0xaae/0x1120
[  410.797056]  ? filemap_map_pages+0x1a20/0x1a20
[  410.802156]  ? zap_class+0x640/0x640
[  410.805871]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.811406]  ? check_preemption_disabled+0x48/0x280
[  410.816430]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.821961]  ? should_fail+0x22d/0xd01
[  410.825839]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  410.830935]  ? zap_class+0x640/0x640
[  410.834659]  ? __lock_is_held+0xb5/0x140
[  410.838714]  ? mark_held_locks+0x130/0x130
[  410.842956]  ? lock_release+0xa00/0xa00
[  410.846918]  ? perf_trace_sched_process_exec+0x860/0x860
[  410.852369]  ? xa_load+0x2ba/0x460
[  410.855899]  ? lock_downgrade+0x900/0x900
[  410.860063]  ? __might_sleep+0x95/0x190
[  410.864047]  __alloc_pages_nodemask+0xa80/0xde0
[  410.868716]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  410.873726]  ? __page_cache_alloc+0x191/0x5c0
[  410.878225]  ? xa_load+0x2e1/0x460
[  410.881758]  ? xa_clear_mark+0x40/0x40
[  410.885648]  ? zap_class+0x640/0x640
[  410.889363]  ? zap_class+0x640/0x640
[  410.893072]  ? zap_class+0x640/0x640
[  410.896796]  ? __do_page_cache_readahead+0x663/0x810
[  410.901892]  ? find_held_lock+0x36/0x1c0
[  410.905946]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  410.911494]  alloc_pages_current+0x173/0x350
[  410.915898]  __page_cache_alloc+0x38c/0x5c0
[  410.920208]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  410.925125]  ? kasan_check_read+0x11/0x20
[  410.929273]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.934546]  ? generic_perform_write+0x6a0/0x6a0
[  410.939306]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.944845]  ? check_preemption_disabled+0x48/0x280
[  410.949871]  filemap_fault+0x1595/0x25f0
[  410.953962]  ? __lock_page_or_retry+0xa00/0xa00
[  410.958628]  ? mark_held_locks+0x130/0x130
[  410.962885]  ? filemap_map_pages+0xd6b/0x1a20
[  410.967438]  ? lock_downgrade+0x900/0x900
[  410.971580]  ? check_preemption_disabled+0x48/0x280
[  410.976600]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  410.981533]  ? kasan_check_read+0x11/0x20
[  410.985681]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.990967]  ? rcu_softirq_qs+0x20/0x20
[  410.994948]  ? filemap_map_pages+0xd92/0x1a20
[  410.999446]  ? find_get_entries_tag+0x1400/0x1400
[  411.004302]  ? debug_object_destroy+0x2b0/0x2b0
[  411.009022]  ? lock_pi_update_atomic+0x150/0x150
[  411.013788]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.019332]  ? lock_acquire+0x1ed/0x520
[  411.023348]  ? ext4_filemap_fault+0x7a/0xad
[  411.027708]  ? lock_release+0xa00/0xa00
[  411.031723]  ? perf_trace_sched_process_exec+0x860/0x860
[  411.037165]  ? print_usage_bug+0xc0/0xc0
[  411.041244]  ? print_usage_bug+0xc0/0xc0
[  411.045340]  ? down_read+0x8d/0x120
[  411.048987]  ? ext4_filemap_fault+0x7a/0xad
[  411.053338]  ? __down_interruptible+0x700/0x700
[  411.058014]  ext4_filemap_fault+0x82/0xad
[  411.062169]  __do_fault+0x100/0x6b0
[  411.065830]  ? pmd_devmap_trans_unstable+0x220/0x220
[  411.070943]  ? mark_held_locks+0x130/0x130
[  411.075186]  ? mark_held_locks+0x130/0x130
[  411.079420]  ? debug_smp_processor_id+0x1c/0x20
[  411.084113]  ? perf_trace_lock+0x14d/0x7a0
[  411.088377]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.093954]  __handle_mm_fault+0x3ea0/0x5be0
[  411.098379]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  411.103265]  ? lock_is_held_type+0x210/0x210
[  411.107671]  ? ksys_dup3+0x680/0x680
[  411.111391]  ? zap_class+0x640/0x640
[  411.115096]  ? zap_class+0x640/0x640
[  411.118816]  ? __x64_sys_futex+0x53e/0x6a0
[  411.123067]  ? find_held_lock+0x36/0x1c0
[  411.127129]  ? handle_mm_fault+0x42a/0xc70
[  411.131359]  ? lock_downgrade+0x900/0x900
[  411.135522]  ? check_preemption_disabled+0x48/0x280
[  411.140577]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  411.145501]  ? kasan_check_read+0x11/0x20
[  411.149638]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.154910]  ? rcu_softirq_qs+0x20/0x20
[  411.158877]  ? trace_hardirqs_off_caller+0x310/0x310
[  411.163973]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.169519]  ? check_preemption_disabled+0x48/0x280
[  411.174538]  handle_mm_fault+0x54f/0xc70
[  411.178596]  ? __handle_mm_fault+0x5be0/0x5be0
[  411.183180]  ? find_vma+0x34/0x190
[  411.186749]  __do_page_fault+0x5e8/0xe60
[  411.190811]  ? trace_hardirqs_off+0xb8/0x310
[  411.195225]  do_page_fault+0xf2/0x7e0
[  411.199034]  ? vmalloc_sync_all+0x30/0x30
[  411.203177]  ? error_entry+0x70/0xd0
[  411.206901]  ? trace_hardirqs_off_caller+0xbb/0x310
[  411.211947]  ? trace_hardirqs_on_caller+0xc0/0x310
[  411.216872]  ? syscall_return_slowpath+0x5e0/0x5e0
[  411.221807]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  411.226649]  ? trace_hardirqs_on_caller+0x310/0x310
[  411.231676]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  411.237122]  ? prepare_exit_to_usermode+0x291/0x3b0
[  411.242129]  ? page_fault+0x8/0x30
[  411.245663]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  411.250504]  ? page_fault+0x8/0x30
[  411.254056]  page_fault+0x1e/0x30
[  411.257516] RIP: 0033:0x40f9c0
[  411.260760] Code: Bad RIP value.
[  411.264123] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  411.269479] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  411.276755] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  411.284030] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  411.291298] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  411.298580] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  411.305866] warn_alloc_show_mem: 1 callbacks suppressed
[  411.305876] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  411.305878] Mem-Info:
[  411.305907] active_anon:54833 inactive_anon:712 isolated_anon:0
[  411.305907]  active_file:11 inactive_file:12 isolated_file:0
[  411.305907]  unevictable:0 dirty:0 writeback:0 unstable:0
[  411.305907]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  411.305907]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  411.305907]  free:13768 free_pcp:742 free_cma:0
[  411.311241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  411.311248] Call Trace:
[  411.318041] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  411.320444]  dump_stack+0x244/0x39d
[  411.353429] 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
[  411.362813]  ? dump_stack_print_info.cold.1+0x20/0x20
[  411.365373] lowmem_reserve[]: 0 2818 6321 6321
[  411.392988]  warn_alloc.cold.116+0xb7/0x1bd
[  411.396584] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  411.422682]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  411.427854] lowmem_reserve[]: 0 0 3503 3503
[  411.432449]  ? lock_downgrade+0x900/0x900
[  411.436757] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  411.464518]  ? trace_hardirqs_off+0xb8/0x310
[  411.469330] lowmem_reserve[]: 0 0 0 0
[  411.473641]  ? trace_hardirqs_off+0xb8/0x310
[  411.477758] 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
[  411.506902]  __alloc_pages_slowpath+0x26e8/0x2e10
[  411.511287] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  411.515100]  ? warn_alloc+0x120/0x120
[  411.519460] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  411.532973]  ? print_usage_bug+0xc0/0xc0
[  411.537816] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  411.553500]  ? warn_alloc+0x120/0x120
[  411.557298] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  411.572667]  ? warn_alloc+0x120/0x120
[  411.576720] 782 total pagecache pages
[  411.585543]  ? print_usage_bug+0xc0/0xc0
[  411.589321] 0 pages in swap cache
[  411.597879]  ? print_usage_bug+0xc0/0xc0
[  411.601655] Swap cache stats: add 0, delete 0, find 0/0
[  411.605440]  ? __lock_acquire+0x62f/0x4c20
[  411.609490] Free swap  = 0kB
[  411.612931]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.617075] Total swap = 0kB
[  411.622462]  ? should_fail+0x22d/0xd01
[  411.626685] 1965979 pages RAM
[  411.629716]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  411.635227] 0 pages HighMem/MovableOnly
[  411.638241]  ? __lock_acquire+0x62f/0x4c20
[  411.642102] 342853 pages reserved
[  411.645198]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  411.650271] 0 pages cma reserved
[  411.654252]  ? __lock_acquire+0x62f/0x4c20
[  411.658546] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  411.661919]  ? should_fail+0x22d/0xd01
[  411.661931]  ? find_held_lock+0x36/0x1c0
[  411.661949]  ? mark_held_locks+0x130/0x130
[  411.667219] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  411.670527]  ? mark_held_locks+0x130/0x130
[  411.674734] syz-fuzzer cpuset=/ mems_allowed=0
[  411.681210]  ? zap_class+0x640/0x640
[  411.716059]  ? mark_held_locks+0xc7/0x130
[  411.720200]  ? do_raw_spin_unlock+0xa7/0x330
[  411.724604]  ? zap_class+0x640/0x640
[  411.728318]  ? print_usage_bug+0xc0/0xc0
[  411.732406]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.737940]  ? check_preemption_disabled+0x48/0x280
[  411.742956]  ? __lock_is_held+0xb5/0x140
[  411.747053]  __alloc_pages_nodemask+0xa80/0xde0
[  411.751736]  ? zap_class+0x640/0x640
[  411.755449]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  411.760474]  ? find_held_lock+0x36/0x1c0
[  411.764568]  ? ____cache_alloc_node+0x1c7/0x1e0
[  411.769252]  ? lock_downgrade+0x900/0x900
[  411.773422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.778963]  cache_grow_begin+0xa5/0x8c0
[  411.783024]  ? do_raw_spin_unlock+0xa7/0x330
[  411.787448]  fallback_alloc+0x204/0x2e0
[  411.791467]  ____cache_alloc_node+0x1c7/0x1e0
[  411.795975]  kmem_cache_alloc_node+0xe3/0x730
[  411.800507]  ? ipv6_get_ifaddr+0x42e/0x620
[  411.804745]  __alloc_skb+0x119/0x770
[  411.808486]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.813774]  ? netdev_alloc_frag+0x1f0/0x1f0
[  411.818207]  ? lock_downgrade+0x900/0x900
[  411.822367]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.827930]  ? refcount_sub_and_test_checked+0x203/0x310
[  411.833378]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  411.838822]  ? addrconf_rs_timer+0x690/0x690
[  411.843268]  ndisc_alloc_skb+0x144/0x340
[  411.847333]  ndisc_send_rs+0x331/0x6e0
[  411.851218]  addrconf_rs_timer+0x314/0x690
[  411.855453]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.859719]  call_timer_fn+0x272/0x920
[  411.863595]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.867818]  ? process_timeout+0x40/0x40
[  411.871891]  ? __run_timers+0x7da/0xc70
[  411.875860]  ? _raw_spin_unlock_irq+0x27/0x80
[  411.880369]  ? _raw_spin_unlock_irq+0x27/0x80
[  411.884874]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.889105]  ? lockdep_hardirqs_on+0x296/0x5b0
[  411.893693]  ? trace_hardirqs_on+0xbd/0x310
[  411.898011]  ? kasan_check_read+0x11/0x20
[  411.902154]  ? __run_timers+0x7da/0xc70
[  411.906123]  ? trace_hardirqs_off_caller+0x310/0x310
[  411.911232]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.915464]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.919689]  __run_timers+0x7e5/0xc70
[  411.923494]  ? timer_fixup_init+0x70/0x70
[  411.927640]  ? _raw_spin_unlock_irq+0x27/0x80
[  411.932126]  ? _raw_spin_unlock_irq+0x27/0x80
[  411.936618]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  411.941197]  ? trace_hardirqs_on+0xbd/0x310
[  411.945523]  ? kasan_check_read+0x11/0x20
[  411.949668]  ? finish_task_switch+0x1f4/0x910
[  411.954165]  ? trace_hardirqs_off_caller+0x310/0x310
[  411.959273]  ? compat_start_thread+0x80/0x80
[  411.963712]  ? pvclock_read_flags+0x160/0x160
[  411.968198]  ? __switch_to_asm+0x34/0x70
[  411.972257]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.977802]  ? check_preemption_disabled+0x48/0x280
[  411.982824]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  411.988356]  ? rcu_pm_notify+0xc0/0xc0
[  411.992238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.997782]  ? check_preemption_disabled+0x48/0x280
[  412.002794]  run_timer_softirq+0x52/0xb0
[  412.006862]  ? rcu_read_lock_sched_held+0x14f/0x180
[  412.011884]  __do_softirq+0x308/0xb7e
[  412.015698]  ? retint_kernel+0x2d/0x2d
[  412.019581]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  412.024676]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  412.030122]  ? trace_hardirqs_on+0x310/0x310
[  412.034548]  ? schedule+0x108/0x460
[  412.038203]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  412.042960]  ? trace_hardirqs_off+0xb8/0x310
[  412.047376]  ? smpboot_thread_fn+0x68b/0xa00
[  412.051777]  ? trace_hardirqs_on+0x310/0x310
[  412.056184]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.061743]  ? check_preemption_disabled+0x48/0x280
[  412.066785]  ? takeover_tasklets+0xa90/0xa90
[  412.071192]  run_ksoftirqd+0x5e/0x100
[  412.074990]  smpboot_thread_fn+0x68b/0xa00
[  412.079261]  ? sort_range+0x30/0x30
[  412.082887]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  412.087981]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.093531]  ? __kthread_parkme+0xfb/0x1a0
[  412.097760]  ? sort_range+0x30/0x30
[  412.101384]  kthread+0x35a/0x440
[  412.104758]  ? kthread_stop+0x900/0x900
[  412.108741]  ret_from_fork+0x3a/0x50
[  412.112513] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  412.112572] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  412.119443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  412.119448] Call Trace:
[  412.119454]  <IRQ>
[  412.119470]  dump_stack+0x244/0x39d
[  412.119488]  ? dump_stack_print_info.cold.1+0x20/0x20
[  412.126036] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  412.135336]  warn_alloc.cold.116+0xb7/0x1bd
[  412.137892] ksoftirqd/0 cpuset=/ mems_allowed=0
[  412.140042]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  412.172959]  ? lock_downgrade+0x900/0x900
[  412.177112]  ? trace_hardirqs_off+0xb8/0x310
[  412.181581]  ? trace_hardirqs_off+0xb8/0x310
[  412.185995]  __alloc_pages_slowpath+0x26e8/0x2e10
[  412.190894]  ? warn_alloc+0x120/0x120
[  412.194703]  ? print_usage_bug+0xc0/0xc0
[  412.198762]  ? warn_alloc+0x120/0x120
[  412.202572]  ? warn_alloc+0x120/0x120
[  412.206406]  ? print_usage_bug+0xc0/0xc0
[  412.210495]  ? print_usage_bug+0xc0/0xc0
[  412.214567]  ? __lock_acquire+0x62f/0x4c20
[  412.218818]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.224351]  ? should_fail+0x22d/0xd01
[  412.228251]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  412.233349]  ? __lock_acquire+0x62f/0x4c20
[  412.237581]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  412.242679]  ? __lock_acquire+0x62f/0x4c20
[  412.246922]  ? should_fail+0x22d/0xd01
[  412.250803]  ? find_held_lock+0x36/0x1c0
[  412.254865]  ? mark_held_locks+0x130/0x130
[  412.259100]  ? mark_held_locks+0x130/0x130
[  412.263334]  ? zap_class+0x640/0x640
[  412.267046]  ? zap_class+0x640/0x640
[  412.270758]  ? print_usage_bug+0xc0/0xc0
[  412.274815]  ? do_raw_spin_unlock+0xa7/0x330
[  412.279215]  ? zap_class+0x640/0x640
[  412.282939]  ? print_usage_bug+0xc0/0xc0
[  412.287019]  ? wq_watchdog_touch+0x9c/0xfe
[  412.291256]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.296797]  ? check_preemption_disabled+0x48/0x280
[  412.301823]  ? __lock_is_held+0xb5/0x140
[  412.305888]  __alloc_pages_nodemask+0xa80/0xde0
[  412.310572]  ? zap_class+0x640/0x640
[  412.314317]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  412.319380]  ? find_held_lock+0x36/0x1c0
[  412.323467]  ? ____cache_alloc_node+0x1c7/0x1e0
[  412.328154]  ? lock_downgrade+0x900/0x900
[  412.332307]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.337846]  cache_grow_begin+0xa5/0x8c0
[  412.341899]  ? do_raw_spin_unlock+0xa7/0x330
[  412.346309]  fallback_alloc+0x204/0x2e0
[  412.350299]  ____cache_alloc_node+0x1c7/0x1e0
[  412.354805]  kmem_cache_alloc_node+0xe3/0x730
[  412.359300]  ? ipv6_get_ifaddr+0x42e/0x620
[  412.363559]  __alloc_skb+0x119/0x770
[  412.367292]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.372607]  ? netdev_alloc_frag+0x1f0/0x1f0
[  412.377022]  ? lock_downgrade+0x900/0x900
[  412.381180]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.386722]  ? refcount_sub_and_test_checked+0x203/0x310
[  412.392179]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  412.397635]  ? addrconf_rs_timer+0x690/0x690
[  412.402072]  ndisc_alloc_skb+0x144/0x340
[  412.406134]  ndisc_send_rs+0x331/0x6e0
[  412.410033]  addrconf_rs_timer+0x314/0x690
[  412.414278]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.418526]  call_timer_fn+0x272/0x920
[  412.422414]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.426647]  ? process_timeout+0x40/0x40
[  412.430726]  ? mark_held_locks+0xc7/0x130
[  412.434877]  ? _raw_spin_unlock_irq+0x27/0x80
[  412.439385]  ? _raw_spin_unlock_irq+0x27/0x80
[  412.443881]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.448114]  ? lockdep_hardirqs_on+0x296/0x5b0
[  412.452698]  ? trace_hardirqs_on+0xbd/0x310
[  412.457023]  ? kasan_check_read+0x11/0x20
[  412.461169]  ? __run_timers+0x7da/0xc70
[  412.465175]  ? trace_hardirqs_off_caller+0x310/0x310
[  412.470279]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.474516]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.478746]  __run_timers+0x7e5/0xc70
[  412.482560]  ? timer_fixup_init+0x70/0x70
[  412.486705]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  412.491739]  ? zap_class+0x640/0x640
[  412.495463]  ? print_usage_bug+0xc0/0xc0
[  412.499545]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  412.504739]  ? find_held_lock+0x36/0x1c0
[  412.508804]  ? zap_class+0x640/0x640
[  412.512524]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.518059]  ? check_preemption_disabled+0x48/0x280
[  412.523097]  ? __lock_is_held+0xb5/0x140
[  412.527175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.532712]  ? check_preemption_disabled+0x48/0x280
[  412.537747]  run_timer_softirq+0x52/0xb0
[  412.541812]  ? rcu_read_lock_sched_held+0x14f/0x180
[  412.546826]  __do_softirq+0x308/0xb7e
[  412.550628]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  412.555117]  ? lock_downgrade+0x900/0x900
[  412.559282]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  412.564390]  ? pvclock_read_flags+0x160/0x160
[  412.568881]  ? lapic_next_event+0x5a/0x90
[  412.573033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.578575]  ? kvm_clock_read+0x18/0x30
[  412.582561]  ? kvm_sched_clock_read+0x9/0x20
[  412.586988]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.592542]  ? check_preemption_disabled+0x48/0x280
[  412.597583]  irq_exit+0x17f/0x1c0
[  412.601036]  smp_apic_timer_interrupt+0x1cb/0x760
[  412.605873]  ? smp_call_function_single_interrupt+0x159/0x650
[  412.611753]  ? smp_call_function_single_interrupt+0x650/0x650
[  412.617869]  ? interrupt_entry+0xb5/0xc0
[  412.621924]  ? trace_hardirqs_off_caller+0xbb/0x310
[  412.626937]  ? trace_hardirqs_off_caller+0xbb/0x310
[  412.631965]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.636808]  ? trace_hardirqs_on_caller+0x310/0x310
[  412.641845]  ? trace_hardirqs_on_caller+0x310/0x310
[  412.646856]  ? task_prio+0x50/0x50
[  412.650392]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.655932]  ? check_preemption_disabled+0x48/0x280
[  412.660950]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.665809]  apic_timer_interrupt+0xf/0x20
[  412.670033]  </IRQ>
[  412.672282] RIP: 0010:dump_stack+0x358/0x39d
[  412.676702] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  412.695596] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  412.703299] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  412.710558] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  412.717837] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  412.725115] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  412.732378] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  412.739662]  ? dump_stack+0x34f/0x39d
[  412.743501]  ? dump_stack_print_info.cold.1+0x20/0x20
[  412.748689]  ? mark_held_locks+0x130/0x130
[  412.752933]  ? mark_held_locks+0x130/0x130
[  412.757179]  dump_header+0x27b/0xf72
[  412.760913]  ? pagefault_out_of_memory+0x197/0x197
[  412.765846]  ? __lock_acquire+0x62f/0x4c20
[  412.770108]  ? percpu_ref_get_many+0x240/0x240
[  412.774720]  ? print_usage_bug+0xc0/0xc0
[  412.778800]  ? zap_class+0x640/0x640
[  412.782545]  ? print_usage_bug+0xc0/0xc0
[  412.786601]  ? print_usage_bug+0xc0/0xc0
[  412.790657]  ? zap_class+0x640/0x640
[  412.794367]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.800413]  ? find_held_lock+0x36/0x1c0
[  412.804493]  ? mark_held_locks+0xc7/0x130
[  412.809143]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  412.814256]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  412.819366]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  412.823960]  ? trace_hardirqs_on+0xbd/0x310
[  412.828275]  ? kasan_check_read+0x11/0x20
[  412.832413]  ? ___ratelimit+0x3b4/0x672
[  412.836391]  ? trace_hardirqs_off_caller+0x310/0x310
[  412.841487]  ? trace_hardirqs_on+0x310/0x310
[  412.845887]  ? lock_downgrade+0x900/0x900
[  412.850035]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  412.855176]  ? ___ratelimit+0x3b9/0x672
[  412.859159]  ? idr_get_free+0xf70/0xf70
[  412.863130]  ? find_held_lock+0x36/0x1c0
[  412.867190]  oom_kill_process.cold.27+0x10/0x903
[  412.871967]  ? zap_class+0x640/0x640
[  412.875710]  ? check_preemption_disabled+0x48/0x280
[  412.880719]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  412.885643]  ? kasan_check_read+0x11/0x20
[  412.889793]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.895084]  ? oom_evaluate_task+0x540/0x540
[  412.899530]  ? find_held_lock+0x36/0x1c0
[  412.903604]  ? out_of_memory+0x974/0x1430
[  412.907773]  ? lock_downgrade+0x900/0x900
[  412.911944]  ? check_preemption_disabled+0x48/0x280
[  412.916957]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  412.921881]  ? kasan_check_read+0x11/0x20
[  412.926027]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.931299]  ? rcu_softirq_qs+0x20/0x20
[  412.935289]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.940820]  ? oom_evaluate_task+0x302/0x540
[  412.945228]  out_of_memory+0xa84/0x1430
[  412.949208]  ? oom_killer_disable+0x3a0/0x3a0
[  412.953697]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  412.958626]  ? __ww_mutex_check_waiters+0x160/0x160
[  412.963720]  __alloc_pages_slowpath+0x2354/0x2e10
[  412.968611]  ? warn_alloc+0x120/0x120
[  412.972406]  ? mark_held_locks+0x130/0x130
[  412.976668]  ? find_get_entry+0xaae/0x1120
[  412.980949]  ? filemap_map_pages+0x1a20/0x1a20
[  412.985540]  ? zap_class+0x640/0x640
[  412.989281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.994929]  ? check_preemption_disabled+0x48/0x280
[  412.999961]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.005516]  ? should_fail+0x22d/0xd01
[  413.009408]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  413.014544]  ? zap_class+0x640/0x640
[  413.018279]  ? __lock_is_held+0xb5/0x140
[  413.022347]  ? mark_held_locks+0x130/0x130
[  413.026580]  ? lock_release+0xa00/0xa00
[  413.030567]  ? perf_trace_sched_process_exec+0x860/0x860
[  413.036035]  ? xa_load+0x2ba/0x460
[  413.039584]  ? lock_downgrade+0x900/0x900
[  413.043752]  ? __might_sleep+0x95/0x190
[  413.047743]  __alloc_pages_nodemask+0xa80/0xde0
[  413.052461]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  413.057493]  ? __page_cache_alloc+0x191/0x5c0
[  413.061981]  ? xa_load+0x2e1/0x460
[  413.065525]  ? xa_clear_mark+0x40/0x40
[  413.069410]  ? zap_class+0x640/0x640
[  413.073129]  ? zap_class+0x640/0x640
[  413.076841]  ? zap_class+0x640/0x640
[  413.080554]  ? __do_page_cache_readahead+0x663/0x810
[  413.085667]  ? find_held_lock+0x36/0x1c0
[  413.089730]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  413.095289]  alloc_pages_current+0x173/0x350
[  413.099707]  __page_cache_alloc+0x38c/0x5c0
[  413.104032]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  413.108972]  ? kasan_check_read+0x11/0x20
[  413.113112]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.118397]  ? generic_perform_write+0x6a0/0x6a0
[  413.123151]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.128688]  ? check_preemption_disabled+0x48/0x280
[  413.133714]  filemap_fault+0x1595/0x25f0
[  413.137799]  ? __lock_page_or_retry+0xa00/0xa00
[  413.142472]  ? mark_held_locks+0x130/0x130
[  413.146740]  ? filemap_map_pages+0xd6b/0x1a20
[  413.151262]  ? lock_downgrade+0x900/0x900
[  413.155424]  ? check_preemption_disabled+0x48/0x280
[  413.160444]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  413.165373]  ? kasan_check_read+0x11/0x20
[  413.169524]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.174829]  ? rcu_softirq_qs+0x20/0x20
[  413.178826]  ? filemap_map_pages+0xd92/0x1a20
[  413.183355]  ? find_get_entries_tag+0x1400/0x1400
[  413.188204]  ? debug_object_destroy+0x2b0/0x2b0
[  413.192964]  ? lock_pi_update_atomic+0x150/0x150
[  413.197716]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.203268]  ? lock_acquire+0x1ed/0x520
[  413.207241]  ? ext4_filemap_fault+0x7a/0xad
[  413.211580]  ? lock_release+0xa00/0xa00
[  413.215549]  ? perf_trace_sched_process_exec+0x860/0x860
[  413.221099]  ? print_usage_bug+0xc0/0xc0
[  413.225171]  ? print_usage_bug+0xc0/0xc0
[  413.229255]  ? down_read+0x8d/0x120
[  413.232891]  ? ext4_filemap_fault+0x7a/0xad
[  413.237209]  ? __down_interruptible+0x700/0x700
[  413.241902]  ext4_filemap_fault+0x82/0xad
[  413.246052]  __do_fault+0x100/0x6b0
[  413.249681]  ? pmd_devmap_trans_unstable+0x220/0x220
[  413.254786]  ? mark_held_locks+0x130/0x130
[  413.259043]  ? mark_held_locks+0x130/0x130
[  413.263342]  ? debug_smp_processor_id+0x1c/0x20
[  413.268014]  ? perf_trace_lock+0x14d/0x7a0
[  413.272254]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.277796]  __handle_mm_fault+0x3ea0/0x5be0
[  413.282217]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  413.287060]  ? lock_is_held_type+0x210/0x210
[  413.291501]  ? ksys_dup3+0x680/0x680
[  413.295262]  ? zap_class+0x640/0x640
[  413.298977]  ? zap_class+0x640/0x640
[  413.302713]  ? __x64_sys_futex+0x53e/0x6a0
[  413.306968]  ? find_held_lock+0x36/0x1c0
[  413.311057]  ? handle_mm_fault+0x42a/0xc70
[  413.315296]  ? lock_downgrade+0x900/0x900
[  413.319458]  ? check_preemption_disabled+0x48/0x280
[  413.324488]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  413.329413]  ? kasan_check_read+0x11/0x20
[  413.333556]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.338828]  ? rcu_softirq_qs+0x20/0x20
[  413.342813]  ? trace_hardirqs_off_caller+0x310/0x310
[  413.347916]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.353453]  ? check_preemption_disabled+0x48/0x280
[  413.358507]  handle_mm_fault+0x54f/0xc70
[  413.362600]  ? __handle_mm_fault+0x5be0/0x5be0
[  413.367200]  ? find_vma+0x34/0x190
[  413.370742]  __do_page_fault+0x5e8/0xe60
[  413.374808]  ? trace_hardirqs_off+0xb8/0x310
[  413.379221]  do_page_fault+0xf2/0x7e0
[  413.383039]  ? vmalloc_sync_all+0x30/0x30
[  413.387193]  ? error_entry+0x70/0xd0
[  413.390908]  ? trace_hardirqs_off_caller+0xbb/0x310
[  413.395923]  ? trace_hardirqs_on_caller+0xc0/0x310
[  413.400852]  ? syscall_return_slowpath+0x5e0/0x5e0
[  413.405788]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.410635]  ? trace_hardirqs_on_caller+0x310/0x310
[  413.415664]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  413.421114]  ? prepare_exit_to_usermode+0x291/0x3b0
[  413.426146]  ? page_fault+0x8/0x30
[  413.429690]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.434534]  ? page_fault+0x8/0x30
[  413.438097]  page_fault+0x1e/0x30
[  413.441567] RIP: 0033:0x40f9c0
[  413.444773] Code: Bad RIP value.
[  413.448138] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  413.453498] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  413.460764] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  413.468069] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  413.475349] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  413.482627] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  413.489915] warn_alloc_show_mem: 1 callbacks suppressed
[  413.489927] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  413.489929] Mem-Info:
[  413.489961] active_anon:54833 inactive_anon:712 isolated_anon:0
[  413.489961]  active_file:11 inactive_file:12 isolated_file:0
[  413.489961]  unevictable:0 dirty:0 writeback:0 unstable:0
[  413.489961]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  413.489961]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  413.489961]  free:13768 free_pcp:742 free_cma:0
[  413.495307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  413.502065] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  413.504462] Call Trace:
[  413.537338] 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
[  413.546700]  dump_stack+0x244/0x39d
[  413.574270] lowmem_reserve[]: 0 2818 6321 6321
[  413.576859]  ? dump_stack_print_info.cold.1+0x20/0x20
[  413.602942] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  413.606583]  warn_alloc.cold.116+0xb7/0x1bd
[  413.611130] lowmem_reserve[]: 0 0 3503 3503
[  413.616316]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  413.644068] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  413.648387]  ? lock_downgrade+0x900/0x900
[  413.652689] lowmem_reserve[]: 0 0 0 0
[  413.657535]  ? trace_hardirqs_off+0xb8/0x310
[  413.686674] 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
[  413.690840]  ? trace_hardirqs_off+0xb8/0x310
[  413.694614] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  413.699043]  __alloc_pages_slowpath+0x26e8/0x2e10
[  413.712536] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  413.716953]  ? warn_alloc+0x120/0x120
[  413.732599] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  413.737424]  ? print_usage_bug+0xc0/0xc0
[  413.752746] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  413.756536]  ? warn_alloc+0x120/0x120
[  413.765345] 782 total pagecache pages
[  413.769452]  ? warn_alloc+0x120/0x120
[  413.778018] 0 pages in swap cache
[  413.781804]  ? print_usage_bug+0xc0/0xc0
[  413.785581] Swap cache stats: add 0, delete 0, find 0/0
[  413.789369]  ? print_usage_bug+0xc0/0xc0
[  413.792816] Free swap  = 0kB
[  413.796864]  ? __lock_acquire+0x62f/0x4c20
[  413.802217] Total swap = 0kB
[  413.806271]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.809264] 1965979 pages RAM
[  413.813491]  ? should_fail+0x22d/0xd01
[  413.816482] 0 pages HighMem/MovableOnly
[  413.822013]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  413.825099] 342853 pages reserved
[  413.828988]  ? __lock_acquire+0x62f/0x4c20
[  413.832934] 0 pages cma reserved
[  413.838040]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  413.841552] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  413.845696]  ? __lock_acquire+0x62f/0x4c20
[  413.845710]  ? should_fail+0x22d/0xd01
[  413.849121] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  413.854175]  ? find_held_lock+0x36/0x1c0
[  413.860637] syz-fuzzer cpuset=/ mems_allowed=0
[  413.864862]  ? mark_held_locks+0x130/0x130
[  413.891768]  ? mark_held_locks+0x130/0x130
[  413.895999]  ? zap_class+0x640/0x640
[  413.899715]  ? zap_class+0x640/0x640
[  413.903443]  ? print_usage_bug+0xc0/0xc0
[  413.907498]  ? do_raw_spin_unlock+0xa7/0x330
[  413.911901]  ? zap_class+0x640/0x640
[  413.915607]  ? print_usage_bug+0xc0/0xc0
[  413.919659]  ? wq_watchdog_touch+0x9c/0xfe
[  413.923889]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.929436]  ? check_preemption_disabled+0x48/0x280
[  413.934496]  ? __lock_is_held+0xb5/0x140
[  413.938590]  __alloc_pages_nodemask+0xa80/0xde0
[  413.943386]  ? zap_class+0x640/0x640
[  413.947100]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  413.952122]  ? find_held_lock+0x36/0x1c0
[  413.956197]  ? ____cache_alloc_node+0x1c7/0x1e0
[  413.960862]  ? lock_downgrade+0x900/0x900
[  413.965014]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.970555]  cache_grow_begin+0xa5/0x8c0
[  413.974614]  ? do_raw_spin_unlock+0xa7/0x330
[  413.979041]  fallback_alloc+0x204/0x2e0
[  413.983037]  ____cache_alloc_node+0x1c7/0x1e0
[  413.987532]  kmem_cache_alloc_node+0xe3/0x730
[  413.992265]  ? ipv6_get_ifaddr+0x42e/0x620
[  413.996531]  __alloc_skb+0x119/0x770
[  414.000249]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.005545]  ? netdev_alloc_frag+0x1f0/0x1f0
[  414.009947]  ? lock_downgrade+0x900/0x900
[  414.014107]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.019647]  ? refcount_sub_and_test_checked+0x203/0x310
[  414.025092]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  414.030549]  ? addrconf_rs_timer+0x690/0x690
[  414.034992]  ndisc_alloc_skb+0x144/0x340
[  414.039063]  ndisc_send_rs+0x331/0x6e0
[  414.042949]  addrconf_rs_timer+0x314/0x690
[  414.047181]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.051422]  call_timer_fn+0x272/0x920
[  414.055318]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.059557]  ? process_timeout+0x40/0x40
[  414.063617]  ? __run_timers+0x7da/0xc70
[  414.067599]  ? _raw_spin_unlock_irq+0x27/0x80
[  414.072120]  ? _raw_spin_unlock_irq+0x27/0x80
[  414.076614]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.080846]  ? lockdep_hardirqs_on+0x296/0x5b0
[  414.085429]  ? trace_hardirqs_on+0xbd/0x310
[  414.089747]  ? kasan_check_read+0x11/0x20
[  414.093886]  ? __run_timers+0x7da/0xc70
[  414.097858]  ? trace_hardirqs_off_caller+0x310/0x310
[  414.103002]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.107301]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.111538]  __run_timers+0x7e5/0xc70
[  414.115361]  ? timer_fixup_init+0x70/0x70
[  414.119506]  ? _raw_spin_unlock_irq+0x27/0x80
[  414.123994]  ? _raw_spin_unlock_irq+0x27/0x80
[  414.128500]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  414.133083]  ? trace_hardirqs_on+0xbd/0x310
[  414.137405]  ? kasan_check_read+0x11/0x20
[  414.141573]  ? finish_task_switch+0x1f4/0x910
[  414.146064]  ? trace_hardirqs_off_caller+0x310/0x310
[  414.151161]  ? compat_start_thread+0x80/0x80
[  414.155584]  ? pvclock_read_flags+0x160/0x160
[  414.160094]  ? __switch_to_asm+0x34/0x70
[  414.164163]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.169724]  ? check_preemption_disabled+0x48/0x280
[  414.174786]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  414.180342]  ? rcu_pm_notify+0xc0/0xc0
[  414.184246]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.189777]  ? check_preemption_disabled+0x48/0x280
[  414.194804]  run_timer_softirq+0x52/0xb0
[  414.198874]  ? rcu_read_lock_sched_held+0x14f/0x180
[  414.203932]  __do_softirq+0x308/0xb7e
[  414.207757]  ? retint_kernel+0x2d/0x2d
[  414.211668]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  414.216775]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  414.222222]  ? trace_hardirqs_on+0x310/0x310
[  414.226633]  ? schedule+0x108/0x460
[  414.230252]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  414.235022]  ? trace_hardirqs_off+0xb8/0x310
[  414.239438]  ? smpboot_thread_fn+0x68b/0xa00
[  414.243839]  ? trace_hardirqs_on+0x310/0x310
[  414.248249]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.253794]  ? check_preemption_disabled+0x48/0x280
[  414.258805]  ? takeover_tasklets+0xa90/0xa90
[  414.263217]  run_ksoftirqd+0x5e/0x100
[  414.267017]  smpboot_thread_fn+0x68b/0xa00
[  414.271252]  ? sort_range+0x30/0x30
[  414.274890]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  414.279999]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.285573]  ? __kthread_parkme+0xfb/0x1a0
[  414.289819]  ? sort_range+0x30/0x30
[  414.293441]  kthread+0x35a/0x440
[  414.296799]  ? kthread_stop+0x900/0x900
[  414.300767]  ret_from_fork+0x3a/0x50
[  414.304487] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  414.304554] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  414.311404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  414.311409] Call Trace:
[  414.311415]  <IRQ>
[  414.311429]  dump_stack+0x244/0x39d
[  414.311445]  ? dump_stack_print_info.cold.1+0x20/0x20
[  414.318017] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  414.327295]  warn_alloc.cold.116+0xb7/0x1bd
[  414.329861] ksoftirqd/0 cpuset=/ mems_allowed=0
[  414.332000]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  414.364899]  ? lock_downgrade+0x900/0x900
[  414.369079]  ? trace_hardirqs_off+0xb8/0x310
[  414.373487]  ? trace_hardirqs_off+0xb8/0x310
[  414.377927]  __alloc_pages_slowpath+0x26e8/0x2e10
[  414.382796]  ? warn_alloc+0x120/0x120
[  414.386595]  ? print_usage_bug+0xc0/0xc0
[  414.390652]  ? warn_alloc+0x120/0x120
[  414.394455]  ? warn_alloc+0x120/0x120
[  414.398252]  ? print_usage_bug+0xc0/0xc0
[  414.402322]  ? print_usage_bug+0xc0/0xc0
[  414.406386]  ? __lock_acquire+0x62f/0x4c20
[  414.410621]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.416155]  ? should_fail+0x22d/0xd01
[  414.420078]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  414.425209]  ? __lock_acquire+0x62f/0x4c20
[  414.429449]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  414.434553]  ? __lock_acquire+0x62f/0x4c20
[  414.438792]  ? should_fail+0x22d/0xd01
[  414.442680]  ? find_held_lock+0x36/0x1c0
[  414.446753]  ? mark_held_locks+0x130/0x130
[  414.450996]  ? mark_held_locks+0x130/0x130
[  414.455233]  ? zap_class+0x640/0x640
[  414.458963]  ? zap_class+0x640/0x640
[  414.462697]  ? print_usage_bug+0xc0/0xc0
[  414.466763]  ? do_raw_spin_unlock+0xa7/0x330
[  414.471178]  ? zap_class+0x640/0x640
[  414.474911]  ? print_usage_bug+0xc0/0xc0
[  414.478985]  ? wq_watchdog_touch+0x9c/0xfe
[  414.483230]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.488767]  ? check_preemption_disabled+0x48/0x280
[  414.493802]  ? __lock_is_held+0xb5/0x140
[  414.497870]  __alloc_pages_nodemask+0xa80/0xde0
[  414.502550]  ? zap_class+0x640/0x640
[  414.506268]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  414.511325]  ? find_held_lock+0x36/0x1c0
[  414.515394]  ? ____cache_alloc_node+0x1c7/0x1e0
[  414.520171]  ? lock_downgrade+0x900/0x900
[  414.524326]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.529867]  cache_grow_begin+0xa5/0x8c0
[  414.533927]  ? do_raw_spin_unlock+0xa7/0x330
[  414.538368]  fallback_alloc+0x204/0x2e0
[  414.542359]  ____cache_alloc_node+0x1c7/0x1e0
[  414.546861]  kmem_cache_alloc_node+0xe3/0x730
[  414.551392]  ? ipv6_get_ifaddr+0x42e/0x620
[  414.555633]  __alloc_skb+0x119/0x770
[  414.559365]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.564642]  ? netdev_alloc_frag+0x1f0/0x1f0
[  414.569047]  ? lock_downgrade+0x900/0x900
[  414.573202]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.578742]  ? refcount_sub_and_test_checked+0x203/0x310
[  414.584212]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  414.589663]  ? addrconf_rs_timer+0x690/0x690
[  414.594078]  ndisc_alloc_skb+0x144/0x340
[  414.598168]  ndisc_send_rs+0x331/0x6e0
[  414.602068]  addrconf_rs_timer+0x314/0x690
[  414.606319]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.610581]  call_timer_fn+0x272/0x920
[  414.614481]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.618711]  ? process_timeout+0x40/0x40
[  414.622802]  ? mark_held_locks+0xc7/0x130
[  414.626976]  ? _raw_spin_unlock_irq+0x27/0x80
[  414.631486]  ? _raw_spin_unlock_irq+0x27/0x80
[  414.635978]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.640249]  ? lockdep_hardirqs_on+0x296/0x5b0
[  414.644832]  ? trace_hardirqs_on+0xbd/0x310
[  414.649158]  ? kasan_check_read+0x11/0x20
[  414.653301]  ? __run_timers+0x7da/0xc70
[  414.657271]  ? trace_hardirqs_off_caller+0x310/0x310
[  414.662372]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.666616]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.670866]  __run_timers+0x7e5/0xc70
[  414.674680]  ? timer_fixup_init+0x70/0x70
[  414.678824]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  414.683836]  ? zap_class+0x640/0x640
[  414.687575]  ? print_usage_bug+0xc0/0xc0
[  414.691639]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  414.696835]  ? find_held_lock+0x36/0x1c0
[  414.700905]  ? zap_class+0x640/0x640
[  414.704816]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.710352]  ? check_preemption_disabled+0x48/0x280
[  414.715375]  ? __lock_is_held+0xb5/0x140
[  414.719451]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.724991]  ? check_preemption_disabled+0x48/0x280
[  414.730029]  run_timer_softirq+0x52/0xb0
[  414.734098]  ? rcu_read_lock_sched_held+0x14f/0x180
[  414.739117]  __do_softirq+0x308/0xb7e
[  414.742935]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  414.747428]  ? lock_downgrade+0x900/0x900
[  414.751582]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  414.756697]  ? pvclock_read_flags+0x160/0x160
[  414.761198]  ? lapic_next_event+0x5a/0x90
[  414.765387]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.770931]  ? kvm_clock_read+0x18/0x30
[  414.774908]  ? kvm_sched_clock_read+0x9/0x20
[  414.779322]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.784864]  ? check_preemption_disabled+0x48/0x280
[  414.789892]  irq_exit+0x17f/0x1c0
[  414.793362]  smp_apic_timer_interrupt+0x1cb/0x760
[  414.798209]  ? smp_call_function_single_interrupt+0x159/0x650
[  414.804626]  ? smp_call_function_single_interrupt+0x650/0x650
[  414.810516]  ? interrupt_entry+0xb5/0xc0
[  414.814579]  ? trace_hardirqs_off_caller+0xbb/0x310
[  414.819592]  ? trace_hardirqs_off_caller+0xbb/0x310
[  414.824640]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.829665]  ? trace_hardirqs_on_caller+0x310/0x310
[  414.834681]  ? trace_hardirqs_on_caller+0x310/0x310
[  414.839723]  ? task_prio+0x50/0x50
[  414.843292]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.848827]  ? check_preemption_disabled+0x48/0x280
[  414.853852]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.858709]  apic_timer_interrupt+0xf/0x20
[  414.862933]  </IRQ>
[  414.865167] RIP: 0010:dump_stack+0x358/0x39d
[  414.869568] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  414.888465] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  414.896188] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  414.903470] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  414.910732] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  414.917999] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  414.925274] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  414.932567]  ? dump_stack+0x34f/0x39d
[  414.936392]  ? dump_stack_print_info.cold.1+0x20/0x20
[  414.941649]  ? mark_held_locks+0x130/0x130
[  414.945881]  ? mark_held_locks+0x130/0x130
[  414.950123]  dump_header+0x27b/0xf72
[  414.953853]  ? pagefault_out_of_memory+0x197/0x197
[  414.958807]  ? __lock_acquire+0x62f/0x4c20
[  414.963048]  ? percpu_ref_get_many+0x240/0x240
[  414.967635]  ? print_usage_bug+0xc0/0xc0
[  414.971702]  ? zap_class+0x640/0x640
[  414.975423]  ? print_usage_bug+0xc0/0xc0
[  414.979484]  ? print_usage_bug+0xc0/0xc0
[  414.983561]  ? zap_class+0x640/0x640
[  414.987280]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.992827]  ? find_held_lock+0x36/0x1c0
[  414.996902]  ? mark_held_locks+0xc7/0x130
[  415.001056]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  415.006162]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  415.011277]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  415.015863]  ? trace_hardirqs_on+0xbd/0x310
[  415.020184]  ? kasan_check_read+0x11/0x20
[  415.024333]  ? ___ratelimit+0x3b4/0x672
[  415.028314]  ? trace_hardirqs_off_caller+0x310/0x310
[  415.033418]  ? trace_hardirqs_on+0x310/0x310
[  415.037829]  ? lock_downgrade+0x900/0x900
[  415.041982]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  415.047097]  ? ___ratelimit+0x3b9/0x672
[  415.051070]  ? idr_get_free+0xf70/0xf70
[  415.055042]  ? find_held_lock+0x36/0x1c0
[  415.059114]  oom_kill_process.cold.27+0x10/0x903
[  415.063868]  ? zap_class+0x640/0x640
[  415.067582]  ? check_preemption_disabled+0x48/0x280
[  415.072597]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  415.077530]  ? kasan_check_read+0x11/0x20
[  415.081674]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.086948]  ? oom_evaluate_task+0x540/0x540
[  415.091357]  ? find_held_lock+0x36/0x1c0
[  415.095424]  ? out_of_memory+0x974/0x1430
[  415.099573]  ? lock_downgrade+0x900/0x900
[  415.103736]  ? check_preemption_disabled+0x48/0x280
[  415.108792]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  415.113722]  ? kasan_check_read+0x11/0x20
[  415.117874]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.123154]  ? rcu_softirq_qs+0x20/0x20
[  415.127130]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.132665]  ? oom_evaluate_task+0x302/0x540
[  415.137078]  out_of_memory+0xa84/0x1430
[  415.141065]  ? oom_killer_disable+0x3a0/0x3a0
[  415.145576]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  415.150535]  ? __ww_mutex_check_waiters+0x160/0x160
[  415.155568]  __alloc_pages_slowpath+0x2354/0x2e10
[  415.160439]  ? warn_alloc+0x120/0x120
[  415.164238]  ? mark_held_locks+0x130/0x130
[  415.168481]  ? find_get_entry+0xaae/0x1120
[  415.172726]  ? filemap_map_pages+0x1a20/0x1a20
[  415.177319]  ? zap_class+0x640/0x640
[  415.181051]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.186593]  ? check_preemption_disabled+0x48/0x280
[  415.191622]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.197165]  ? should_fail+0x22d/0xd01
[  415.201059]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  415.206165]  ? zap_class+0x640/0x640
[  415.209901]  ? __lock_is_held+0xb5/0x140
[  415.213968]  ? mark_held_locks+0x130/0x130
[  415.218208]  ? lock_release+0xa00/0xa00
[  415.222183]  ? perf_trace_sched_process_exec+0x860/0x860
[  415.227637]  ? xa_load+0x2ba/0x460
[  415.231190]  ? lock_downgrade+0x900/0x900
[  415.235346]  ? __might_sleep+0x95/0x190
[  415.239325]  __alloc_pages_nodemask+0xa80/0xde0
[  415.244013]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  415.249054]  ? __page_cache_alloc+0x191/0x5c0
[  415.253552]  ? xa_load+0x2e1/0x460
[  415.257097]  ? xa_clear_mark+0x40/0x40
[  415.260989]  ? zap_class+0x640/0x640
[  415.264718]  ? zap_class+0x640/0x640
[  415.268433]  ? zap_class+0x640/0x640
[  415.272153]  ? __do_page_cache_readahead+0x663/0x810
[  415.277268]  ? find_held_lock+0x36/0x1c0
[  415.281336]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  415.286882]  alloc_pages_current+0x173/0x350
[  415.291299]  __page_cache_alloc+0x38c/0x5c0
[  415.295623]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  415.300550]  ? kasan_check_read+0x11/0x20
[  415.304702]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.309982]  ? generic_perform_write+0x6a0/0x6a0
[  415.314745]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.320290]  ? check_preemption_disabled+0x48/0x280
[  415.325313]  filemap_fault+0x1595/0x25f0
[  415.329403]  ? __lock_page_or_retry+0xa00/0xa00
[  415.334077]  ? mark_held_locks+0x130/0x130
[  415.338322]  ? filemap_map_pages+0xd6b/0x1a20
[  415.342823]  ? lock_downgrade+0x900/0x900
[  415.346972]  ? check_preemption_disabled+0x48/0x280
[  415.352024]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  415.356951]  ? kasan_check_read+0x11/0x20
[  415.361101]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.366375]  ? rcu_softirq_qs+0x20/0x20
[  415.370365]  ? filemap_map_pages+0xd92/0x1a20
[  415.374873]  ? find_get_entries_tag+0x1400/0x1400
[  415.379756]  ? debug_object_destroy+0x2b0/0x2b0
[  415.384446]  ? lock_pi_update_atomic+0x150/0x150
[  415.389206]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.394757]  ? lock_acquire+0x1ed/0x520
[  415.398738]  ? ext4_filemap_fault+0x7a/0xad
[  415.403085]  ? lock_release+0xa00/0xa00
[  415.407066]  ? perf_trace_sched_process_exec+0x860/0x860
[  415.412517]  ? print_usage_bug+0xc0/0xc0
[  415.416594]  ? print_usage_bug+0xc0/0xc0
[  415.420683]  ? down_read+0x8d/0x120
[  415.424325]  ? ext4_filemap_fault+0x7a/0xad
[  415.428649]  ? __down_interruptible+0x700/0x700
[  415.433327]  ext4_filemap_fault+0x82/0xad
[  415.437494]  __do_fault+0x100/0x6b0
[  415.441131]  ? pmd_devmap_trans_unstable+0x220/0x220
[  415.446255]  ? mark_held_locks+0x130/0x130
[  415.450494]  ? mark_held_locks+0x130/0x130
[  415.454746]  ? debug_smp_processor_id+0x1c/0x20
[  415.459456]  ? perf_trace_lock+0x14d/0x7a0
[  415.463694]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.469237]  __handle_mm_fault+0x3ea0/0x5be0
[  415.473663]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  415.478505]  ? lock_is_held_type+0x210/0x210
[  415.482920]  ? ksys_dup3+0x680/0x680
[  415.486707]  ? zap_class+0x640/0x640
[  415.490424]  ? zap_class+0x640/0x640
[  415.494137]  ? __x64_sys_futex+0x53e/0x6a0
[  415.498380]  ? find_held_lock+0x36/0x1c0
[  415.502451]  ? handle_mm_fault+0x42a/0xc70
[  415.506692]  ? lock_downgrade+0x900/0x900
[  415.510838]  ? check_preemption_disabled+0x48/0x280
[  415.515852]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  415.520803]  ? kasan_check_read+0x11/0x20
[  415.524990]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.530277]  ? rcu_softirq_qs+0x20/0x20
[  415.534255]  ? trace_hardirqs_off_caller+0x310/0x310
[  415.539356]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.544895]  ? check_preemption_disabled+0x48/0x280
[  415.549919]  handle_mm_fault+0x54f/0xc70
[  415.553986]  ? __handle_mm_fault+0x5be0/0x5be0
[  415.558579]  ? find_vma+0x34/0x190
[  415.562137]  __do_page_fault+0x5e8/0xe60
[  415.566197]  ? trace_hardirqs_off+0xb8/0x310
[  415.570616]  do_page_fault+0xf2/0x7e0
[  415.574419]  ? vmalloc_sync_all+0x30/0x30
[  415.578567]  ? error_entry+0x70/0xd0
[  415.582313]  ? trace_hardirqs_off_caller+0xbb/0x310
[  415.587348]  ? trace_hardirqs_on_caller+0xc0/0x310
[  415.592276]  ? syscall_return_slowpath+0x5e0/0x5e0
[  415.597200]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.602048]  ? trace_hardirqs_on_caller+0x310/0x310
[  415.607081]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  415.612534]  ? prepare_exit_to_usermode+0x291/0x3b0
[  415.617573]  ? page_fault+0x8/0x30
[  415.621115]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.625960]  ? page_fault+0x8/0x30
[  415.629526]  page_fault+0x1e/0x30
[  415.632976] RIP: 0033:0x40f9c0
[  415.636215] Code: Bad RIP value.
[  415.639588] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  415.644946] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  415.652210] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  415.659474] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  415.666738] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  415.674001] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  415.681289] warn_alloc_show_mem: 1 callbacks suppressed
[  415.681299] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  415.681301] Mem-Info:
[  415.681328] active_anon:54833 inactive_anon:712 isolated_anon:0
[  415.681328]  active_file:11 inactive_file:12 isolated_file:0
[  415.681328]  unevictable:0 dirty:0 writeback:0 unstable:0
[  415.681328]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  415.681328]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  415.681328]  free:13768 free_pcp:742 free_cma:0
[  415.686666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  415.693416] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  415.695811] Call Trace:
[  415.728671] 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
[  415.738030]  dump_stack+0x244/0x39d
[  415.765588] lowmem_reserve[]: 0 2818 6321 6321
[  415.768169]  ? dump_stack_print_info.cold.1+0x20/0x20
[  415.794251] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  415.797878]  warn_alloc.cold.116+0xb7/0x1bd
[  415.802433] lowmem_reserve[]: 0 0 3503 3503
[  415.807633]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  415.835368] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  415.839680]  ? lock_downgrade+0x900/0x900
[  415.843992] lowmem_reserve[]: 0 0 0 0
[  415.848842]  ? trace_hardirqs_off+0xb8/0x310
[  415.877963] 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
[  415.882154]  ? trace_hardirqs_off+0xb8/0x310
[  415.885951] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  415.890368]  __alloc_pages_slowpath+0x26e8/0x2e10
[  415.903867] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  415.908289]  ? warn_alloc+0x120/0x120
[  415.923937] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  415.928763]  ? print_usage_bug+0xc0/0xc0
[  415.944092] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  415.947881]  ? warn_alloc+0x120/0x120
[  415.956693] 782 total pagecache pages
[  415.960741]  ? warn_alloc+0x120/0x120
[  415.969304] 0 pages in swap cache
[  415.973094]  ? print_usage_bug+0xc0/0xc0
[  415.976873] Swap cache stats: add 0, delete 0, find 0/0
[  415.980660]  ? print_usage_bug+0xc0/0xc0
[  415.984091] Free swap  = 0kB
[  415.988171]  ? __lock_acquire+0x62f/0x4c20
[  415.993500] Total swap = 0kB
[  415.997550]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.000551] 1965979 pages RAM
[  416.004793]  ? should_fail+0x22d/0xd01
[  416.007784] 0 pages HighMem/MovableOnly
[  416.013313]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  416.016393] 342853 pages reserved
[  416.020268]  ? __lock_acquire+0x62f/0x4c20
[  416.024212] 0 pages cma reserved
[  416.029308]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  416.032801] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  416.036957]  ? __lock_acquire+0x62f/0x4c20
[  416.036972]  ? should_fail+0x22d/0xd01
[  416.040418] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  416.045426]  ? find_held_lock+0x36/0x1c0
[  416.051896] syz-fuzzer cpuset=/ mems_allowed=0
[  416.056139]  ? mark_held_locks+0x130/0x130
[  416.083440]  ? mark_held_locks+0x130/0x130
[  416.087707]  ? zap_class+0x640/0x640
[  416.091421]  ? zap_class+0x640/0x640
[  416.095153]  ? print_usage_bug+0xc0/0xc0
[  416.099226]  ? do_raw_spin_unlock+0xa7/0x330
[  416.103647]  ? zap_class+0x640/0x640
[  416.107365]  ? print_usage_bug+0xc0/0xc0
[  416.111430]  ? wq_watchdog_touch+0x9c/0xfe
[  416.115664]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.121202]  ? check_preemption_disabled+0x48/0x280
[  416.126222]  ? __lock_is_held+0xb5/0x140
[  416.130290]  __alloc_pages_nodemask+0xa80/0xde0
[  416.134957]  ? zap_class+0x640/0x640
[  416.138673]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  416.143705]  ? find_held_lock+0x36/0x1c0
[  416.147827]  ? ____cache_alloc_node+0x1c7/0x1e0
[  416.152528]  ? lock_downgrade+0x900/0x900
[  416.156684]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.162229]  cache_grow_begin+0xa5/0x8c0
[  416.166295]  ? do_raw_spin_unlock+0xa7/0x330
[  416.170744]  fallback_alloc+0x204/0x2e0
[  416.174725]  ____cache_alloc_node+0x1c7/0x1e0
[  416.179243]  kmem_cache_alloc_node+0xe3/0x730
[  416.183733]  ? ipv6_get_ifaddr+0x42e/0x620
[  416.187972]  __alloc_skb+0x119/0x770
[  416.191688]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.196979]  ? netdev_alloc_frag+0x1f0/0x1f0
[  416.201403]  ? lock_downgrade+0x900/0x900
[  416.205564]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.211116]  ? refcount_sub_and_test_checked+0x203/0x310
[  416.216582]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  416.222061]  ? addrconf_rs_timer+0x690/0x690
[  416.226474]  ndisc_alloc_skb+0x144/0x340
[  416.230537]  ndisc_send_rs+0x331/0x6e0
[  416.234426]  addrconf_rs_timer+0x314/0x690
[  416.238663]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.242904]  call_timer_fn+0x272/0x920
[  416.246791]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.251027]  ? process_timeout+0x40/0x40
[  416.255092]  ? __run_timers+0x7da/0xc70
[  416.259068]  ? _raw_spin_unlock_irq+0x27/0x80
[  416.263563]  ? _raw_spin_unlock_irq+0x27/0x80
[  416.268054]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.272290]  ? lockdep_hardirqs_on+0x296/0x5b0
[  416.276868]  ? trace_hardirqs_on+0xbd/0x310
[  416.281201]  ? kasan_check_read+0x11/0x20
[  416.285347]  ? __run_timers+0x7da/0xc70
[  416.289319]  ? trace_hardirqs_off_caller+0x310/0x310
[  416.294420]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.298653]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.302888]  __run_timers+0x7e5/0xc70
[  416.306696]  ? timer_fixup_init+0x70/0x70
[  416.310876]  ? _raw_spin_unlock_irq+0x27/0x80
[  416.315409]  ? _raw_spin_unlock_irq+0x27/0x80
[  416.319933]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  416.324513]  ? trace_hardirqs_on+0xbd/0x310
[  416.328829]  ? kasan_check_read+0x11/0x20
[  416.332980]  ? finish_task_switch+0x1f4/0x910
[  416.337483]  ? trace_hardirqs_off_caller+0x310/0x310
[  416.342613]  ? compat_start_thread+0x80/0x80
[  416.347044]  ? pvclock_read_flags+0x160/0x160
[  416.351541]  ? __switch_to_asm+0x34/0x70
[  416.355604]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.361142]  ? check_preemption_disabled+0x48/0x280
[  416.366181]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  416.371718]  ? rcu_pm_notify+0xc0/0xc0
[  416.375623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.381176]  ? check_preemption_disabled+0x48/0x280
[  416.386201]  run_timer_softirq+0x52/0xb0
[  416.390263]  ? rcu_read_lock_sched_held+0x14f/0x180
[  416.395304]  __do_softirq+0x308/0xb7e
[  416.399107]  ? retint_kernel+0x2d/0x2d
[  416.403022]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  416.408130]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  416.413584]  ? trace_hardirqs_on+0x310/0x310
[  416.418017]  ? schedule+0x108/0x460
[  416.421656]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  416.426421]  ? trace_hardirqs_off+0xb8/0x310
[  416.430834]  ? smpboot_thread_fn+0x68b/0xa00
[  416.435246]  ? trace_hardirqs_on+0x310/0x310
[  416.439660]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.445198]  ? check_preemption_disabled+0x48/0x280
[  416.450220]  ? takeover_tasklets+0xa90/0xa90
[  416.454661]  run_ksoftirqd+0x5e/0x100
[  416.458462]  smpboot_thread_fn+0x68b/0xa00
[  416.462701]  ? sort_range+0x30/0x30
[  416.466355]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  416.471460]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.477000]  ? __kthread_parkme+0xfb/0x1a0
[  416.481249]  ? sort_range+0x30/0x30
[  416.484881]  kthread+0x35a/0x440
[  416.488266]  ? kthread_stop+0x900/0x900
[  416.492266]  ret_from_fork+0x3a/0x50
[  416.496015] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  416.496080] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  416.502939] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  416.502944] Call Trace:
[  416.502950]  <IRQ>
[  416.502966]  dump_stack+0x244/0x39d
[  416.502983]  ? dump_stack_print_info.cold.1+0x20/0x20
[  416.509540] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  416.518830]  warn_alloc.cold.116+0xb7/0x1bd
[  416.521384] ksoftirqd/0 cpuset=/ mems_allowed=0
[  416.523527]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  416.556408]  ? lock_downgrade+0x900/0x900
[  416.560563]  ? trace_hardirqs_off+0xb8/0x310
[  416.564974]  ? trace_hardirqs_off+0xb8/0x310
[  416.569424]  __alloc_pages_slowpath+0x26e8/0x2e10
[  416.574309]  ? warn_alloc+0x120/0x120
[  416.578120]  ? print_usage_bug+0xc0/0xc0
[  416.582198]  ? warn_alloc+0x120/0x120
[  416.586014]  ? warn_alloc+0x120/0x120
[  416.589815]  ? print_usage_bug+0xc0/0xc0
[  416.593873]  ? kvm_clock_read+0x18/0x30
[  416.597848]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  416.602864]  ? print_usage_bug+0xc0/0xc0
[  416.606921]  ? __lock_acquire+0x62f/0x4c20
[  416.611161]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.616695]  ? should_fail+0x22d/0xd01
[  416.620579]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.625861]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  416.630983]  ? __lock_acquire+0x62f/0x4c20
[  416.635246]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  416.640346]  ? __lock_acquire+0x62f/0x4c20
[  416.644577]  ? should_fail+0x22d/0xd01
[  416.648459]  ? rcu_irq_exit+0x1a2/0x390
[  416.652443]  ? mark_held_locks+0x130/0x130
[  416.656682]  ? mark_held_locks+0x130/0x130
[  416.660922]  ? mark_held_locks+0xc7/0x130
[  416.665069]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  416.670086]  ? zap_class+0x640/0x640
[  416.673805]  ? print_usage_bug+0xc0/0xc0
[  416.677869]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.683406]  ? check_preemption_disabled+0x48/0x280
[  416.688431]  ? __lock_is_held+0xb5/0x140
[  416.692518]  __alloc_pages_nodemask+0xa80/0xde0
[  416.697186]  ? zap_class+0x640/0x640
[  416.700917]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  416.705944]  ? find_held_lock+0x36/0x1c0
[  416.710019]  ? ____cache_alloc_node+0x1c7/0x1e0
[  416.714687]  ? lock_downgrade+0x900/0x900
[  416.718844]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.724381]  cache_grow_begin+0xa5/0x8c0
[  416.728462]  ? do_raw_spin_unlock+0xa7/0x330
[  416.732877]  fallback_alloc+0x204/0x2e0
[  416.736861]  ____cache_alloc_node+0x1c7/0x1e0
[  416.741359]  kmem_cache_alloc_node+0xe3/0x730
[  416.745851]  ? ipv6_get_ifaddr+0x42e/0x620
[  416.750088]  __alloc_skb+0x119/0x770
[  416.753818]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.759094]  ? netdev_alloc_frag+0x1f0/0x1f0
[  416.763510]  ? lock_downgrade+0x900/0x900
[  416.767660]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.773196]  ? refcount_sub_and_test_checked+0x203/0x310
[  416.778676]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  416.784143]  ? addrconf_rs_timer+0x690/0x690
[  416.788575]  ndisc_alloc_skb+0x144/0x340
[  416.792640]  ndisc_send_rs+0x331/0x6e0
[  416.796534]  addrconf_rs_timer+0x314/0x690
[  416.801315]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.805614]  call_timer_fn+0x272/0x920
[  416.810015]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.814262]  ? process_timeout+0x40/0x40
[  416.818329]  ? mark_held_locks+0xc7/0x130
[  416.822490]  ? _raw_spin_unlock_irq+0x27/0x80
[  416.826982]  ? _raw_spin_unlock_irq+0x27/0x80
[  416.831481]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.835713]  ? lockdep_hardirqs_on+0x296/0x5b0
[  416.840342]  ? trace_hardirqs_on+0xbd/0x310
[  416.844656]  ? kasan_check_read+0x11/0x20
[  416.848800]  ? __run_timers+0x7da/0xc70
[  416.852791]  ? trace_hardirqs_off_caller+0x310/0x310
[  416.857895]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.862131]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.866356]  __run_timers+0x7e5/0xc70
[  416.870179]  ? timer_fixup_init+0x70/0x70
[  416.874328]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  416.879364]  ? zap_class+0x640/0x640
[  416.883093]  ? print_usage_bug+0xc0/0xc0
[  416.887150]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  416.892348]  ? find_held_lock+0x36/0x1c0
[  416.896441]  ? zap_class+0x640/0x640
[  416.900166]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.905705]  ? check_preemption_disabled+0x48/0x280
[  416.910747]  ? __lock_is_held+0xb5/0x140
[  416.914814]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.920351]  ? check_preemption_disabled+0x48/0x280
[  416.925371]  run_timer_softirq+0x52/0xb0
[  416.929447]  ? rcu_read_lock_sched_held+0x14f/0x180
[  416.934460]  __do_softirq+0x308/0xb7e
[  416.938281]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  416.942781]  ? lock_downgrade+0x900/0x900
[  416.946937]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  416.952078]  ? pvclock_read_flags+0x160/0x160
[  416.956573]  ? lapic_next_event+0x5a/0x90
[  416.960724]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.966266]  ? kvm_clock_read+0x18/0x30
[  416.970238]  ? kvm_sched_clock_read+0x9/0x20
[  416.974647]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.980184]  ? check_preemption_disabled+0x48/0x280
[  416.985207]  irq_exit+0x17f/0x1c0
[  416.988660]  smp_apic_timer_interrupt+0x1cb/0x760
[  416.993502]  ? smp_call_function_single_interrupt+0x159/0x650
[  416.999431]  ? smp_call_function_single_interrupt+0x650/0x650
[  417.005325]  ? interrupt_entry+0xb5/0xc0
[  417.009406]  ? trace_hardirqs_off_caller+0xbb/0x310
[  417.014436]  ? trace_hardirqs_off_caller+0xbb/0x310
[  417.019459]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.024302]  ? trace_hardirqs_on_caller+0x310/0x310
[  417.029318]  ? trace_hardirqs_on_caller+0x310/0x310
[  417.034333]  ? task_prio+0x50/0x50
[  417.037875]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.043413]  ? check_preemption_disabled+0x48/0x280
[  417.048435]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.053293]  apic_timer_interrupt+0xf/0x20
[  417.057553]  </IRQ>
[  417.059810] RIP: 0010:dump_stack+0x358/0x39d
[  417.064223] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  417.083119] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  417.090837] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  417.098099] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  417.105361] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  417.112637] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  417.119902] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  417.127184]  ? dump_stack+0x34f/0x39d
[  417.130995]  ? dump_stack_print_info.cold.1+0x20/0x20
[  417.136194]  ? mark_held_locks+0x130/0x130
[  417.140430]  ? mark_held_locks+0x130/0x130
[  417.144665]  dump_header+0x27b/0xf72
[  417.148437]  ? pagefault_out_of_memory+0x197/0x197
[  417.153378]  ? __lock_acquire+0x62f/0x4c20
[  417.157615]  ? percpu_ref_get_many+0x240/0x240
[  417.162228]  ? print_usage_bug+0xc0/0xc0
[  417.166324]  ? zap_class+0x640/0x640
[  417.170047]  ? print_usage_bug+0xc0/0xc0
[  417.174108]  ? print_usage_bug+0xc0/0xc0
[  417.178171]  ? zap_class+0x640/0x640
[  417.181898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.187448]  ? find_held_lock+0x36/0x1c0
[  417.191528]  ? mark_held_locks+0xc7/0x130
[  417.195703]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  417.200801]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  417.205896]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  417.210473]  ? trace_hardirqs_on+0xbd/0x310
[  417.214795]  ? kasan_check_read+0x11/0x20
[  417.218955]  ? ___ratelimit+0x3b4/0x672
[  417.222927]  ? trace_hardirqs_off_caller+0x310/0x310
[  417.228063]  ? trace_hardirqs_on+0x310/0x310
[  417.232470]  ? lock_downgrade+0x900/0x900
[  417.236623]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  417.241720]  ? ___ratelimit+0x3b9/0x672
[  417.245694]  ? idr_get_free+0xf70/0xf70
[  417.249683]  ? find_held_lock+0x36/0x1c0
[  417.253753]  oom_kill_process.cold.27+0x10/0x903
[  417.258511]  ? zap_class+0x640/0x640
[  417.262224]  ? check_preemption_disabled+0x48/0x280
[  417.267247]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  417.272174]  ? kasan_check_read+0x11/0x20
[  417.276348]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.281639]  ? oom_evaluate_task+0x540/0x540
[  417.286055]  ? find_held_lock+0x36/0x1c0
[  417.290125]  ? out_of_memory+0x974/0x1430
[  417.294275]  ? lock_downgrade+0x900/0x900
[  417.298421]  ? check_preemption_disabled+0x48/0x280
[  417.303468]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  417.308406]  ? kasan_check_read+0x11/0x20
[  417.312564]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.317841]  ? rcu_softirq_qs+0x20/0x20
[  417.321828]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.327399]  ? oom_evaluate_task+0x302/0x540
[  417.331849]  out_of_memory+0xa84/0x1430
[  417.335833]  ? oom_killer_disable+0x3a0/0x3a0
[  417.340340]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  417.345271]  ? __ww_mutex_check_waiters+0x160/0x160
[  417.350294]  __alloc_pages_slowpath+0x2354/0x2e10
[  417.355212]  ? warn_alloc+0x120/0x120
[  417.359033]  ? mark_held_locks+0x130/0x130
[  417.363274]  ? find_get_entry+0xaae/0x1120
[  417.367532]  ? filemap_map_pages+0x1a20/0x1a20
[  417.372115]  ? zap_class+0x640/0x640
[  417.375827]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.381363]  ? check_preemption_disabled+0x48/0x280
[  417.386381]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.391951]  ? should_fail+0x22d/0xd01
[  417.395844]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  417.400948]  ? zap_class+0x640/0x640
[  417.404681]  ? __lock_is_held+0xb5/0x140
[  417.408743]  ? mark_held_locks+0x130/0x130
[  417.412978]  ? lock_release+0xa00/0xa00
[  417.416956]  ? perf_trace_sched_process_exec+0x860/0x860
[  417.422409]  ? xa_load+0x2ba/0x460
[  417.425951]  ? lock_downgrade+0x900/0x900
[  417.430102]  ? __might_sleep+0x95/0x190
[  417.434079]  __alloc_pages_nodemask+0xa80/0xde0
[  417.438758]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  417.443781]  ? __page_cache_alloc+0x191/0x5c0
[  417.448275]  ? xa_load+0x2e1/0x460
[  417.451816]  ? xa_clear_mark+0x40/0x40
[  417.455702]  ? zap_class+0x640/0x640
[  417.459422]  ? zap_class+0x640/0x640
[  417.463136]  ? zap_class+0x640/0x640
[  417.466866]  ? __do_page_cache_readahead+0x663/0x810
[  417.471972]  ? find_held_lock+0x36/0x1c0
[  417.476043]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  417.481585]  alloc_pages_current+0x173/0x350
[  417.486039]  __page_cache_alloc+0x38c/0x5c0
[  417.490407]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  417.495332]  ? kasan_check_read+0x11/0x20
[  417.499490]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.504782]  ? generic_perform_write+0x6a0/0x6a0
[  417.509532]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.515065]  ? check_preemption_disabled+0x48/0x280
[  417.520099]  filemap_fault+0x1595/0x25f0
[  417.524168]  ? __lock_page_or_retry+0xa00/0xa00
[  417.528834]  ? mark_held_locks+0x130/0x130
[  417.533074]  ? filemap_map_pages+0xd6b/0x1a20
[  417.537565]  ? lock_downgrade+0x900/0x900
[  417.541706]  ? check_preemption_disabled+0x48/0x280
[  417.546730]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  417.551656]  ? kasan_check_read+0x11/0x20
[  417.555802]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.561078]  ? rcu_softirq_qs+0x20/0x20
[  417.565065]  ? filemap_map_pages+0xd92/0x1a20
[  417.569574]  ? find_get_entries_tag+0x1400/0x1400
[  417.574418]  ? debug_object_destroy+0x2b0/0x2b0
[  417.579107]  ? lock_pi_update_atomic+0x150/0x150
[  417.583864]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.589414]  ? lock_acquire+0x1ed/0x520
[  417.593389]  ? ext4_filemap_fault+0x7a/0xad
[  417.597783]  ? lock_release+0xa00/0xa00
[  417.601756]  ? perf_trace_sched_process_exec+0x860/0x860
[  417.607216]  ? print_usage_bug+0xc0/0xc0
[  417.611293]  ? print_usage_bug+0xc0/0xc0
[  417.615366]  ? down_read+0x8d/0x120
[  417.618990]  ? ext4_filemap_fault+0x7a/0xad
[  417.623319]  ? __down_interruptible+0x700/0x700
[  417.628020]  ext4_filemap_fault+0x82/0xad
[  417.632169]  __do_fault+0x100/0x6b0
[  417.635807]  ? pmd_devmap_trans_unstable+0x220/0x220
[  417.640933]  ? mark_held_locks+0x130/0x130
[  417.645196]  ? mark_held_locks+0x130/0x130
[  417.649427]  ? debug_smp_processor_id+0x1c/0x20
[  417.654111]  ? perf_trace_lock+0x14d/0x7a0
[  417.658370]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.663909]  __handle_mm_fault+0x3ea0/0x5be0
[  417.668464]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  417.673307]  ? lock_is_held_type+0x210/0x210
[  417.677743]  ? ksys_dup3+0x680/0x680
[  417.681462]  ? zap_class+0x640/0x640
[  417.685168]  ? zap_class+0x640/0x640
[  417.688875]  ? __x64_sys_futex+0x53e/0x6a0
[  417.693110]  ? find_held_lock+0x36/0x1c0
[  417.697170]  ? handle_mm_fault+0x42a/0xc70
[  417.701411]  ? lock_downgrade+0x900/0x900
[  417.705569]  ? check_preemption_disabled+0x48/0x280
[  417.710584]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  417.715537]  ? kasan_check_read+0x11/0x20
[  417.719677]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.724949]  ? rcu_softirq_qs+0x20/0x20
[  417.728918]  ? trace_hardirqs_off_caller+0x310/0x310
[  417.734028]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.739562]  ? check_preemption_disabled+0x48/0x280
[  417.744598]  handle_mm_fault+0x54f/0xc70
[  417.748659]  ? __handle_mm_fault+0x5be0/0x5be0
[  417.753240]  ? find_vma+0x34/0x190
[  417.756798]  __do_page_fault+0x5e8/0xe60
[  417.760866]  ? trace_hardirqs_off+0xb8/0x310
[  417.765279]  do_page_fault+0xf2/0x7e0
[  417.769091]  ? vmalloc_sync_all+0x30/0x30
[  417.773237]  ? error_entry+0x70/0xd0
[  417.776967]  ? trace_hardirqs_off_caller+0xbb/0x310
[  417.781978]  ? trace_hardirqs_on_caller+0xc0/0x310
[  417.786909]  ? syscall_return_slowpath+0x5e0/0x5e0
[  417.791838]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.796678]  ? trace_hardirqs_on_caller+0x310/0x310
[  417.802162]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  417.807638]  ? prepare_exit_to_usermode+0x291/0x3b0
[  417.812649]  ? page_fault+0x8/0x30
[  417.816190]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.821036]  ? page_fault+0x8/0x30
[  417.824579]  page_fault+0x1e/0x30
[  417.828031] RIP: 0033:0x40f9c0
[  417.831234] Code: Bad RIP value.
[  417.834589] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  417.839955] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  417.847218] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  417.854477] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  417.861738] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  417.869003] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  417.876310] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  417.876315] warn_alloc_show_mem: 1 callbacks suppressed
[  417.876321] Mem-Info:
[  417.883086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  417.888490] active_anon:54833 inactive_anon:712 isolated_anon:0
[  417.888490]  active_file:11 inactive_file:12 isolated_file:0
[  417.888490]  unevictable:0 dirty:0 writeback:0 unstable:0
[  417.888490]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  417.888490]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  417.888490]  free:13768 free_pcp:742 free_cma:0
[  417.890860] Call Trace:
[  417.900272] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  417.933120]  dump_stack+0x244/0x39d
[  417.935678] 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
[  417.963272]  ? dump_stack_print_info.cold.1+0x20/0x20
[  417.966885] lowmem_reserve[]: 0 2818 6321 6321
[  417.993013]  warn_alloc.cold.116+0xb7/0x1bd
[  417.998168] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  418.002758]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  418.007061] lowmem_reserve[]: 0 0 3503 3503
[  418.034813]  ? lock_downgrade+0x900/0x900
[  418.039680] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  418.043992]  ? trace_hardirqs_off+0xb8/0x310
[  418.048106] lowmem_reserve[]: 0 0 0 0
[  418.077242]  ? trace_hardirqs_off+0xb8/0x310
[  418.081619] 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
[  418.085409]  __alloc_pages_slowpath+0x26e8/0x2e10
[  418.089784] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  418.103322]  ? warn_alloc+0x120/0x120
[  418.108120] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  418.123807]  ? print_usage_bug+0xc0/0xc0
[  418.127589] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  418.142917]  ? warn_alloc+0x120/0x120
[  418.146957] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  418.155778]  ? warn_alloc+0x120/0x120
[  418.159577] 782 total pagecache pages
[  418.168145]  ? print_usage_bug+0xc0/0xc0
[  418.171929] 0 pages in swap cache
[  418.175713]  ? print_usage_bug+0xc0/0xc0
[  418.179753] Swap cache stats: add 0, delete 0, find 0/0
[  418.183214]  ? __lock_acquire+0x62f/0x4c20
[  418.187247] Free swap  = 0kB
[  418.192603]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.196810] Total swap = 0kB
[  418.199815]  ? should_fail+0x22d/0xd01
[  418.205322] 1965979 pages RAM
[  418.208333]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  418.212193] 0 pages HighMem/MovableOnly
[  418.215292]  ? __lock_acquire+0x62f/0x4c20
[  418.220387] 342853 pages reserved
[  418.220395] 0 pages cma reserved
[  418.224429]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  418.228723] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  418.232102]  ? __lock_acquire+0x62f/0x4c20
[  418.232115]  ? should_fail+0x22d/0xd01
[  418.232127]  ? find_held_lock+0x36/0x1c0
[  418.232147]  ? mark_held_locks+0x130/0x130
[  418.235553] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  418.240592]  ? mark_held_locks+0x130/0x130
[  418.247056] syz-fuzzer cpuset=/ mems_allowed=0
[  418.251311]  ? zap_class+0x640/0x640
[  418.286162]  ? mark_held_locks+0xc7/0x130
[  418.290310]  ? do_raw_spin_unlock+0xa7/0x330
[  418.294732]  ? zap_class+0x640/0x640
[  418.298443]  ? print_usage_bug+0xc0/0xc0
[  418.302504]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.308039]  ? check_preemption_disabled+0x48/0x280
[  418.313063]  ? __lock_is_held+0xb5/0x140
[  418.317126]  __alloc_pages_nodemask+0xa80/0xde0
[  418.321790]  ? zap_class+0x640/0x640
[  418.325508]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  418.330546]  ? find_held_lock+0x36/0x1c0
[  418.334646]  ? ____cache_alloc_node+0x1c7/0x1e0
[  418.339319]  ? lock_downgrade+0x900/0x900
[  418.343483]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.349029]  cache_grow_begin+0xa5/0x8c0
[  418.353103]  ? do_raw_spin_unlock+0xa7/0x330
[  418.357520]  fallback_alloc+0x204/0x2e0
[  418.361511]  ____cache_alloc_node+0x1c7/0x1e0
[  418.366018]  kmem_cache_alloc_node+0xe3/0x730
[  418.370516]  ? ipv6_get_ifaddr+0x42e/0x620
[  418.374761]  __alloc_skb+0x119/0x770
[  418.378484]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.383766]  ? netdev_alloc_frag+0x1f0/0x1f0
[  418.388176]  ? lock_downgrade+0x900/0x900
[  418.392338]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.397873]  ? refcount_sub_and_test_checked+0x203/0x310
[  418.403339]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  418.408800]  ? addrconf_rs_timer+0x690/0x690
[  418.413227]  ndisc_alloc_skb+0x144/0x340
[  418.417315]  ndisc_send_rs+0x331/0x6e0
[  418.421211]  addrconf_rs_timer+0x314/0x690
[  418.425450]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  418.429711]  call_timer_fn+0x272/0x920
[  418.433595]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  418.437829]  ? process_timeout+0x40/0x40
[  418.441896]  ? __run_timers+0x7da/0xc70
[  418.445904]  ? _raw_spin_unlock_irq+0x27/0x80
[  418.450402]  ? _raw_spin_unlock_irq+0x27/0x80
[  418.454893]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  418.459125]  ? lockdep_hardirqs_on+0x296/0x5b0
[  418.463706]  ? trace_hardirqs_on+0xbd/0x310
[  418.468042]  ? kasan_check_read+0x11/0x20
[  418.472186]  ? __run_timers+0x7da/0xc70
[  418.476157]  ? trace_hardirqs_off_caller+0x310/0x310
[  418.481274]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  418.485514]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  418.489749]  __run_timers+0x7e5/0xc70
[  418.493561]  ? timer_fixup_init+0x70/0x70
[  418.497711]  ? _raw_spin_unlock_irq+0x27/0x80
[  418.502200]  ? _raw_spin_unlock_irq+0x27/0x80
[  418.506703]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  418.511313]  ? trace_hardirqs_on+0xbd/0x310
[  418.515631]  ? kasan_check_read+0x11/0x20
[  418.519775]  ? finish_task_switch+0x1f4/0x910
[  418.524265]  ? trace_hardirqs_off_caller+0x310/0x310
[  418.529368]  ? compat_start_thread+0x80/0x80
[  418.533788]  ? pvclock_read_flags+0x160/0x160
[  418.538275]  ? __switch_to_asm+0x34/0x70
[  418.542349]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.547880]  ? check_preemption_disabled+0x48/0x280
[  418.552898]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  418.558428]  ? rcu_pm_notify+0xc0/0xc0
[  418.562311]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.567871]  ? check_preemption_disabled+0x48/0x280
[  418.572928]  run_timer_softirq+0x52/0xb0
[  418.577001]  ? rcu_read_lock_sched_held+0x14f/0x180
[  418.582031]  __do_softirq+0x308/0xb7e
[  418.585838]  ? retint_kernel+0x2d/0x2d
[  418.589728]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  418.594827]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  418.600275]  ? trace_hardirqs_on+0x310/0x310
[  418.604696]  ? schedule+0x108/0x460
[  418.608316]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  418.613087]  ? trace_hardirqs_off+0xb8/0x310
[  418.617487]  ? smpboot_thread_fn+0x68b/0xa00
[  418.621920]  ? trace_hardirqs_on+0x310/0x310
[  418.626355]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.631886]  ? check_preemption_disabled+0x48/0x280
[  418.636897]  ? takeover_tasklets+0xa90/0xa90
[  418.641320]  run_ksoftirqd+0x5e/0x100
[  418.645134]  smpboot_thread_fn+0x68b/0xa00
[  418.649372]  ? sort_range+0x30/0x30
[  418.652996]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  418.658103]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.663644]  ? __kthread_parkme+0xfb/0x1a0
[  418.667885]  ? sort_range+0x30/0x30
[  418.671513]  kthread+0x35a/0x440
[  418.674881]  ? kthread_stop+0x900/0x900
[  418.678859]  ret_from_fork+0x3a/0x50
[  418.682588] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  418.682655] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  418.689514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  418.689519] Call Trace:
[  418.689525]  <IRQ>
[  418.689540]  dump_stack+0x244/0x39d
[  418.689557]  ? dump_stack_print_info.cold.1+0x20/0x20
[  418.696090] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  418.705412]  warn_alloc.cold.116+0xb7/0x1bd
[  418.707969] ksoftirqd/0 cpuset=/ mems_allowed=0
[  418.710116]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  418.743041]  ? lock_downgrade+0x900/0x900
[  418.747194]  ? trace_hardirqs_off+0xb8/0x310
[  418.751604]  ? trace_hardirqs_off+0xb8/0x310
[  418.756023]  __alloc_pages_slowpath+0x26e8/0x2e10
[  418.760884]  ? warn_alloc+0x120/0x120
[  418.764704]  ? print_usage_bug+0xc0/0xc0
[  418.768757]  ? warn_alloc+0x120/0x120
[  418.772567]  ? warn_alloc+0x120/0x120
[  418.776402]  ? print_usage_bug+0xc0/0xc0
[  418.780475]  ? print_usage_bug+0xc0/0xc0
[  418.784561]  ? __lock_acquire+0x62f/0x4c20
[  418.788812]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.794341]  ? should_fail+0x22d/0xd01
[  418.798252]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  418.803810]  ? __lock_acquire+0x62f/0x4c20
[  418.808092]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  418.813190]  ? __lock_acquire+0x62f/0x4c20
[  418.817429]  ? should_fail+0x22d/0xd01
[  418.821308]  ? find_held_lock+0x36/0x1c0
[  418.825381]  ? mark_held_locks+0x130/0x130
[  418.829631]  ? mark_held_locks+0x130/0x130
[  418.833856]  ? zap_class+0x640/0x640
[  418.837566]  ? zap_class+0x640/0x640
[  418.841292]  ? print_usage_bug+0xc0/0xc0
[  418.845437]  ? do_raw_spin_unlock+0xa7/0x330
[  418.849860]  ? zap_class+0x640/0x640
[  418.853571]  ? print_usage_bug+0xc0/0xc0
[  418.857633]  ? wq_watchdog_touch+0x9c/0xfe
[  418.861864]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.867398]  ? check_preemption_disabled+0x48/0x280
[  418.872413]  ? __lock_is_held+0xb5/0x140
[  418.876471]  __alloc_pages_nodemask+0xa80/0xde0
[  418.881152]  ? zap_class+0x640/0x640
[  418.884882]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  418.889917]  ? find_held_lock+0x36/0x1c0
[  418.894074]  ? ____cache_alloc_node+0x1c7/0x1e0
[  418.898735]  ? lock_downgrade+0x900/0x900
[  418.902881]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.908457]  cache_grow_begin+0xa5/0x8c0
[  418.912516]  ? do_raw_spin_unlock+0xa7/0x330
[  418.916942]  fallback_alloc+0x204/0x2e0
[  418.920919]  ____cache_alloc_node+0x1c7/0x1e0
[  418.925444]  kmem_cache_alloc_node+0xe3/0x730
[  418.929950]  ? ipv6_get_ifaddr+0x42e/0x620
[  418.934186]  __alloc_skb+0x119/0x770
[  418.937908]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.943208]  ? netdev_alloc_frag+0x1f0/0x1f0
[  418.947613]  ? lock_downgrade+0x900/0x900
[  418.951774]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.957310]  ? refcount_sub_and_test_checked+0x203/0x310
[  418.962771]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  418.968217]  ? addrconf_rs_timer+0x690/0x690
[  418.972644]  ndisc_alloc_skb+0x144/0x340
[  418.976727]  ndisc_send_rs+0x331/0x6e0
[  418.980646]  addrconf_rs_timer+0x314/0x690
[  418.984933]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  418.989175]  call_timer_fn+0x272/0x920
[  418.993063]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  418.997295]  ? process_timeout+0x40/0x40
[  419.001363]  ? mark_held_locks+0xc7/0x130
[  419.005509]  ? _raw_spin_unlock_irq+0x27/0x80
[  419.010002]  ? _raw_spin_unlock_irq+0x27/0x80
[  419.014503]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.018737]  ? lockdep_hardirqs_on+0x296/0x5b0
[  419.023318]  ? trace_hardirqs_on+0xbd/0x310
[  419.027654]  ? kasan_check_read+0x11/0x20
[  419.031800]  ? __run_timers+0x7da/0xc70
[  419.035775]  ? trace_hardirqs_off_caller+0x310/0x310
[  419.040885]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.045124]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.049351]  __run_timers+0x7e5/0xc70
[  419.053160]  ? timer_fixup_init+0x70/0x70
[  419.057323]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  419.062365]  ? zap_class+0x640/0x640
[  419.066085]  ? print_usage_bug+0xc0/0xc0
[  419.070160]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  419.075373]  ? find_held_lock+0x36/0x1c0
[  419.079466]  ? zap_class+0x640/0x640
[  419.083184]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.088716]  ? check_preemption_disabled+0x48/0x280
[  419.093738]  ? __lock_is_held+0xb5/0x140
[  419.097815]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.103364]  ? check_preemption_disabled+0x48/0x280
[  419.108389]  run_timer_softirq+0x52/0xb0
[  419.112446]  ? rcu_read_lock_sched_held+0x14f/0x180
[  419.117461]  __do_softirq+0x308/0xb7e
[  419.121278]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  419.125772]  ? lock_downgrade+0x900/0x900
[  419.129945]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  419.135050]  ? pvclock_read_flags+0x160/0x160
[  419.139540]  ? lapic_next_event+0x5a/0x90
[  419.143682]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.149227]  ? kvm_clock_read+0x18/0x30
[  419.153210]  ? kvm_sched_clock_read+0x9/0x20
[  419.157622]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.163162]  ? check_preemption_disabled+0x48/0x280
[  419.168183]  irq_exit+0x17f/0x1c0
[  419.171647]  smp_apic_timer_interrupt+0x1cb/0x760
[  419.176490]  ? smp_call_function_single_interrupt+0x159/0x650
[  419.182375]  ? smp_call_function_single_interrupt+0x650/0x650
[  419.188290]  ? interrupt_entry+0xb5/0xc0
[  419.192354]  ? trace_hardirqs_off_caller+0xbb/0x310
[  419.197386]  ? trace_hardirqs_off_caller+0xbb/0x310
[  419.202399]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  419.207254]  ? trace_hardirqs_on_caller+0x310/0x310
[  419.212283]  ? trace_hardirqs_on_caller+0x310/0x310
[  419.217298]  ? task_prio+0x50/0x50
[  419.220856]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.226395]  ? check_preemption_disabled+0x48/0x280
[  419.231419]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  419.236268]  apic_timer_interrupt+0xf/0x20
[  419.240494]  </IRQ>
[  419.242735] RIP: 0010:dump_stack+0x358/0x39d
[  419.247146] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  419.266044] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  419.273751] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  419.281025] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  419.288311] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  419.295576] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  419.302836] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  419.310156]  ? dump_stack+0x34f/0x39d
[  419.313992]  ? dump_stack_print_info.cold.1+0x20/0x20
[  419.319226]  ? mark_held_locks+0x130/0x130
[  419.323455]  ? mark_held_locks+0x130/0x130
[  419.327690]  dump_header+0x27b/0xf72
[  419.331408]  ? pagefault_out_of_memory+0x197/0x197
[  419.336351]  ? __lock_acquire+0x62f/0x4c20
[  419.340638]  ? percpu_ref_get_many+0x240/0x240
[  419.345221]  ? print_usage_bug+0xc0/0xc0
[  419.349309]  ? zap_class+0x640/0x640
[  419.353069]  ? print_usage_bug+0xc0/0xc0
[  419.357174]  ? print_usage_bug+0xc0/0xc0
[  419.361250]  ? zap_class+0x640/0x640
[  419.364961]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.370496]  ? find_held_lock+0x36/0x1c0
[  419.374587]  ? mark_held_locks+0xc7/0x130
[  419.378809]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  419.383908]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  419.389015]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  419.393608]  ? trace_hardirqs_on+0xbd/0x310
[  419.397967]  ? kasan_check_read+0x11/0x20
[  419.402112]  ? ___ratelimit+0x3b4/0x672
[  419.406142]  ? trace_hardirqs_off_caller+0x310/0x310
[  419.411258]  ? trace_hardirqs_on+0x310/0x310
[  419.415673]  ? lock_downgrade+0x900/0x900
[  419.419827]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  419.424936]  ? ___ratelimit+0x3b9/0x672
[  419.428905]  ? idr_get_free+0xf70/0xf70
[  419.432891]  ? find_held_lock+0x36/0x1c0
[  419.436957]  oom_kill_process.cold.27+0x10/0x903
[  419.441706]  ? zap_class+0x640/0x640
[  419.445441]  ? check_preemption_disabled+0x48/0x280
[  419.450483]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  419.455415]  ? kasan_check_read+0x11/0x20
[  419.459817]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.465093]  ? oom_evaluate_task+0x540/0x540
[  419.469513]  ? find_held_lock+0x36/0x1c0
[  419.473607]  ? out_of_memory+0x974/0x1430
[  419.477768]  ? lock_downgrade+0x900/0x900
[  419.481925]  ? check_preemption_disabled+0x48/0x280
[  419.486977]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  419.491906]  ? kasan_check_read+0x11/0x20
[  419.496050]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.501323]  ? rcu_softirq_qs+0x20/0x20
[  419.505316]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.510864]  ? oom_evaluate_task+0x302/0x540
[  419.515268]  out_of_memory+0xa84/0x1430
[  419.519260]  ? oom_killer_disable+0x3a0/0x3a0
[  419.523748]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  419.528672]  ? __ww_mutex_check_waiters+0x160/0x160
[  419.533689]  __alloc_pages_slowpath+0x2354/0x2e10
[  419.538547]  ? warn_alloc+0x120/0x120
[  419.542368]  ? mark_held_locks+0x130/0x130
[  419.546601]  ? find_get_entry+0xaae/0x1120
[  419.550842]  ? filemap_map_pages+0x1a20/0x1a20
[  419.555424]  ? zap_class+0x640/0x640
[  419.559141]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.564701]  ? check_preemption_disabled+0x48/0x280
[  419.569726]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.575292]  ? should_fail+0x22d/0xd01
[  419.579221]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  419.584354]  ? zap_class+0x640/0x640
[  419.588086]  ? __lock_is_held+0xb5/0x140
[  419.592149]  ? mark_held_locks+0x130/0x130
[  419.596434]  ? lock_release+0xa00/0xa00
[  419.600424]  ? perf_trace_sched_process_exec+0x860/0x860
[  419.605870]  ? xa_load+0x2ba/0x460
[  419.609409]  ? lock_downgrade+0x900/0x900
[  419.613580]  ? __might_sleep+0x95/0x190
[  419.617598]  __alloc_pages_nodemask+0xa80/0xde0
[  419.622267]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  419.627297]  ? __page_cache_alloc+0x191/0x5c0
[  419.631832]  ? xa_load+0x2e1/0x460
[  419.635372]  ? xa_clear_mark+0x40/0x40
[  419.639293]  ? zap_class+0x640/0x640
[  419.643017]  ? zap_class+0x640/0x640
[  419.646724]  ? zap_class+0x640/0x640
[  419.650473]  ? __do_page_cache_readahead+0x663/0x810
[  419.655589]  ? find_held_lock+0x36/0x1c0
[  419.659673]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  419.665231]  alloc_pages_current+0x173/0x350
[  419.669768]  __page_cache_alloc+0x38c/0x5c0
[  419.674121]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  419.679076]  ? kasan_check_read+0x11/0x20
[  419.683220]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.688494]  ? generic_perform_write+0x6a0/0x6a0
[  419.693244]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.698796]  ? check_preemption_disabled+0x48/0x280
[  419.703815]  filemap_fault+0x1595/0x25f0
[  419.707877]  ? __lock_page_or_retry+0xa00/0xa00
[  419.712558]  ? mark_held_locks+0x130/0x130
[  419.716812]  ? filemap_map_pages+0xd6b/0x1a20
[  419.721300]  ? lock_downgrade+0x900/0x900
[  419.725439]  ? check_preemption_disabled+0x48/0x280
[  419.730457]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  419.735379]  ? kasan_check_read+0x11/0x20
[  419.739517]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.744793]  ? rcu_softirq_qs+0x20/0x20
[  419.748799]  ? filemap_map_pages+0xd92/0x1a20
[  419.753351]  ? find_get_entries_tag+0x1400/0x1400
[  419.758195]  ? debug_object_destroy+0x2b0/0x2b0
[  419.762866]  ? lock_pi_update_atomic+0x150/0x150
[  419.767630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.773187]  ? lock_acquire+0x1ed/0x520
[  419.777157]  ? ext4_filemap_fault+0x7a/0xad
[  419.781479]  ? lock_release+0xa00/0xa00
[  419.785479]  ? perf_trace_sched_process_exec+0x860/0x860
[  419.790940]  ? print_usage_bug+0xc0/0xc0
[  419.794997]  ? print_usage_bug+0xc0/0xc0
[  419.799075]  ? down_read+0x8d/0x120
[  419.802697]  ? ext4_filemap_fault+0x7a/0xad
[  419.807065]  ? __down_interruptible+0x700/0x700
[  419.811768]  ext4_filemap_fault+0x82/0xad
[  419.815941]  __do_fault+0x100/0x6b0
[  419.819585]  ? pmd_devmap_trans_unstable+0x220/0x220
[  419.824687]  ? mark_held_locks+0x130/0x130
[  419.828937]  ? mark_held_locks+0x130/0x130
[  419.833178]  ? debug_smp_processor_id+0x1c/0x20
[  419.837876]  ? perf_trace_lock+0x14d/0x7a0
[  419.842127]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.847695]  __handle_mm_fault+0x3ea0/0x5be0
[  419.852141]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  419.857000]  ? lock_is_held_type+0x210/0x210
[  419.861452]  ? ksys_dup3+0x680/0x680
[  419.865874]  ? zap_class+0x640/0x640
[  419.869585]  ? zap_class+0x640/0x640
[  419.873309]  ? __x64_sys_futex+0x53e/0x6a0
[  419.877549]  ? find_held_lock+0x36/0x1c0
[  419.881637]  ? handle_mm_fault+0x42a/0xc70
[  419.885942]  ? lock_downgrade+0x900/0x900
[  419.890098]  ? check_preemption_disabled+0x48/0x280
[  419.895116]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  419.900044]  ? kasan_check_read+0x11/0x20
[  419.904220]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.909511]  ? rcu_softirq_qs+0x20/0x20
[  419.913489]  ? trace_hardirqs_off_caller+0x310/0x310
[  419.918595]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.924137]  ? check_preemption_disabled+0x48/0x280
[  419.929167]  handle_mm_fault+0x54f/0xc70
[  419.933249]  ? __handle_mm_fault+0x5be0/0x5be0
[  419.937832]  ? find_vma+0x34/0x190
[  419.941379]  __do_page_fault+0x5e8/0xe60
[  419.945437]  ? trace_hardirqs_off+0xb8/0x310
[  419.949855]  do_page_fault+0xf2/0x7e0
[  419.953674]  ? vmalloc_sync_all+0x30/0x30
[  419.957822]  ? error_entry+0x70/0xd0
[  419.961540]  ? trace_hardirqs_off_caller+0xbb/0x310
[  419.966585]  ? trace_hardirqs_on_caller+0xc0/0x310
[  419.971517]  ? syscall_return_slowpath+0x5e0/0x5e0
[  419.976445]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  419.981291]  ? trace_hardirqs_on_caller+0x310/0x310
[  419.986325]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  419.991786]  ? prepare_exit_to_usermode+0x291/0x3b0
[  419.996810]  ? page_fault+0x8/0x30
[  420.000357]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  420.005201]  ? page_fault+0x8/0x30
[  420.008754]  page_fault+0x1e/0x30
[  420.012209] RIP: 0033:0x40f9c0
[  420.015429] Code: Bad RIP value.
[  420.018796] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  420.024165] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  420.031460] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  420.038730] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  420.045996] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  420.053298] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  420.060587] warn_alloc_show_mem: 1 callbacks suppressed
[  420.060598] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  420.060600] Mem-Info:
[  420.060657] active_anon:54833 inactive_anon:712 isolated_anon:0
[  420.060657]  active_file:11 inactive_file:12 isolated_file:0
[  420.060657]  unevictable:0 dirty:0 writeback:0 unstable:0
[  420.060657]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  420.060657]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  420.060657]  free:13768 free_pcp:742 free_cma:0
[  420.066012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  420.072801] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  420.075196] Call Trace:
[  420.108089] 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
[  420.117469]  dump_stack+0x244/0x39d
[  420.145049] lowmem_reserve[]: 0 2818 6321 6321
[  420.147657]  ? dump_stack_print_info.cold.1+0x20/0x20
[  420.173734] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  420.177394]  warn_alloc.cold.116+0xb7/0x1bd
[  420.181933] lowmem_reserve[]: 0 0 3503 3503
[  420.187121]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  420.214860] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  420.219188]  ? lock_downgrade+0x900/0x900
[  420.223476] lowmem_reserve[]: 0 0 0 0
[  420.228337]  ? trace_hardirqs_off+0xb8/0x310
[  420.257463] 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
[  420.261633]  ? trace_hardirqs_off+0xb8/0x310
[  420.265397] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  420.269815]  __alloc_pages_slowpath+0x26e8/0x2e10
[  420.283312] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  420.287746]  ? warn_alloc+0x120/0x120
[  420.303397] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  420.308235]  ? print_usage_bug+0xc0/0xc0
[  420.323578] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  420.323588] 782 total pagecache pages
[  420.327409]  ? warn_alloc+0x120/0x120
[  420.336226] 0 pages in swap cache
[  420.340298]  ? warn_alloc+0x120/0x120
[  420.348846] Swap cache stats: add 0, delete 0, find 0/0
[  420.348856] Free swap  = 0kB
[  420.352669]  ? print_usage_bug+0xc0/0xc0
[  420.356446] Total swap = 0kB
[  420.356454] 1965979 pages RAM
[  420.359911]  ? print_usage_bug+0xc0/0xc0
[  420.363683] 0 pages HighMem/MovableOnly
[  420.369052]  ? __lock_acquire+0x62f/0x4c20
[  420.372055] 342853 pages reserved
[  420.372063] 0 pages cma reserved
[  420.376133]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.379181] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  420.382216]  ? should_fail+0x22d/0xd01
[  420.382235]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  420.382252]  ? __lock_acquire+0x62f/0x4c20
[  420.386398] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  420.390288]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  420.394566] syz-fuzzer cpuset=/ mems_allowed=0
[  420.398037]  ? __lock_acquire+0x62f/0x4c20
[  420.450686]  ? should_fail+0x22d/0xd01
[  420.454578]  ? find_held_lock+0x36/0x1c0
[  420.458663]  ? mark_held_locks+0x130/0x130
[  420.462930]  ? mark_held_locks+0x130/0x130
[  420.467251]  ? zap_class+0x640/0x640
[  420.470971]  ? zap_class+0x640/0x640
[  420.474682]  ? print_usage_bug+0xc0/0xc0
[  420.478739]  ? do_raw_spin_unlock+0xa7/0x330
[  420.483175]  ? zap_class+0x640/0x640
[  420.486891]  ? print_usage_bug+0xc0/0xc0
[  420.490949]  ? wq_watchdog_touch+0x9c/0xfe
[  420.495188]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.500751]  ? check_preemption_disabled+0x48/0x280
[  420.505786]  ? __lock_is_held+0xb5/0x140
[  420.509858]  __alloc_pages_nodemask+0xa80/0xde0
[  420.514544]  ? zap_class+0x640/0x640
[  420.518266]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  420.523305]  ? find_held_lock+0x36/0x1c0
[  420.527381]  ? ____cache_alloc_node+0x1c7/0x1e0
[  420.532060]  ? lock_downgrade+0x900/0x900
[  420.536220]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.541765]  cache_grow_begin+0xa5/0x8c0
[  420.545828]  ? do_raw_spin_unlock+0xa7/0x330
[  420.550287]  fallback_alloc+0x204/0x2e0
[  420.554270]  ____cache_alloc_node+0x1c7/0x1e0
[  420.558808]  kmem_cache_alloc_node+0xe3/0x730
[  420.563314]  ? ipv6_get_ifaddr+0x42e/0x620
[  420.567592]  __alloc_skb+0x119/0x770
[  420.571356]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.576639]  ? netdev_alloc_frag+0x1f0/0x1f0
[  420.581048]  ? lock_downgrade+0x900/0x900
[  420.585227]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.590766]  ? refcount_sub_and_test_checked+0x203/0x310
[  420.596223]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  420.601691]  ? addrconf_rs_timer+0x690/0x690
[  420.606129]  ndisc_alloc_skb+0x144/0x340
[  420.610198]  ndisc_send_rs+0x331/0x6e0
[  420.614091]  addrconf_rs_timer+0x314/0x690
[  420.618335]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.622584]  call_timer_fn+0x272/0x920
[  420.626472]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.630716]  ? process_timeout+0x40/0x40
[  420.634797]  ? __run_timers+0x7da/0xc70
[  420.638770]  ? _raw_spin_unlock_irq+0x27/0x80
[  420.643272]  ? _raw_spin_unlock_irq+0x27/0x80
[  420.647786]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.652027]  ? lockdep_hardirqs_on+0x296/0x5b0
[  420.656628]  ? trace_hardirqs_on+0xbd/0x310
[  420.660963]  ? kasan_check_read+0x11/0x20
[  420.665113]  ? __run_timers+0x7da/0xc70
[  420.669090]  ? trace_hardirqs_off_caller+0x310/0x310
[  420.674199]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.678440]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.682686]  __run_timers+0x7e5/0xc70
[  420.686496]  ? timer_fixup_init+0x70/0x70
[  420.690640]  ? _raw_spin_unlock_irq+0x27/0x80
[  420.695166]  ? _raw_spin_unlock_irq+0x27/0x80
[  420.699671]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  420.704302]  ? trace_hardirqs_on+0xbd/0x310
[  420.708634]  ? kasan_check_read+0x11/0x20
[  420.712782]  ? finish_task_switch+0x1f4/0x910
[  420.717301]  ? trace_hardirqs_off_caller+0x310/0x310
[  420.722412]  ? compat_start_thread+0x80/0x80
[  420.726837]  ? pvclock_read_flags+0x160/0x160
[  420.731325]  ? __switch_to_asm+0x34/0x70
[  420.735417]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.740954]  ? check_preemption_disabled+0x48/0x280
[  420.745977]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  420.751534]  ? rcu_pm_notify+0xc0/0xc0
[  420.755436]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.760969]  ? check_preemption_disabled+0x48/0x280
[  420.766001]  run_timer_softirq+0x52/0xb0
[  420.770074]  ? rcu_read_lock_sched_held+0x14f/0x180
[  420.775090]  __do_softirq+0x308/0xb7e
[  420.778897]  ? retint_kernel+0x2d/0x2d
[  420.782798]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  420.787917]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  420.793373]  ? trace_hardirqs_on+0x310/0x310
[  420.797780]  ? schedule+0x108/0x460
[  420.801663]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  420.806441]  ? trace_hardirqs_off+0xb8/0x310
[  420.810851]  ? smpboot_thread_fn+0x68b/0xa00
[  420.815262]  ? trace_hardirqs_on+0x310/0x310
[  420.819699]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.825251]  ? check_preemption_disabled+0x48/0x280
[  420.830295]  ? takeover_tasklets+0xa90/0xa90
[  420.834702]  run_ksoftirqd+0x5e/0x100
[  420.838495]  smpboot_thread_fn+0x68b/0xa00
[  420.842745]  ? sort_range+0x30/0x30
[  420.846386]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  420.851485]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.857043]  ? __kthread_parkme+0xfb/0x1a0
[  420.861287]  ? sort_range+0x30/0x30
[  420.864912]  kthread+0x35a/0x440
[  420.868275]  ? kthread_stop+0x900/0x900
[  420.872273]  ret_from_fork+0x3a/0x50
[  420.876035] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  420.876121] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  420.882957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  420.882962] Call Trace:
[  420.882968]  <IRQ>
[  420.882984]  dump_stack+0x244/0x39d
[  420.883000]  ? dump_stack_print_info.cold.1+0x20/0x20
[  420.889556] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  420.898830]  warn_alloc.cold.116+0xb7/0x1bd
[  420.901384] ksoftirqd/0 cpuset=/ mems_allowed=0
[  420.903528]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  420.936439]  ? lock_downgrade+0x900/0x900
[  420.940591]  ? trace_hardirqs_off+0xb8/0x310
[  420.945000]  ? trace_hardirqs_off+0xb8/0x310
[  420.949466]  __alloc_pages_slowpath+0x26e8/0x2e10
[  420.954334]  ? warn_alloc+0x120/0x120
[  420.958136]  ? print_usage_bug+0xc0/0xc0
[  420.962214]  ? warn_alloc+0x120/0x120
[  420.966024]  ? warn_alloc+0x120/0x120
[  420.969827]  ? print_usage_bug+0xc0/0xc0
[  420.973891]  ? print_usage_bug+0xc0/0xc0
[  420.977950]  ? __lock_acquire+0x62f/0x4c20
[  420.982184]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.987719]  ? should_fail+0x22d/0xd01
[  420.991623]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  420.996732]  ? __lock_acquire+0x62f/0x4c20
[  421.000985]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  421.006088]  ? __lock_acquire+0x62f/0x4c20
[  421.010332]  ? should_fail+0x22d/0xd01
[  421.014231]  ? find_held_lock+0x36/0x1c0
[  421.018300]  ? mark_held_locks+0x130/0x130
[  421.022538]  ? mark_held_locks+0x130/0x130
[  421.026769]  ? zap_class+0x640/0x640
[  421.030510]  ? zap_class+0x640/0x640
[  421.034223]  ? print_usage_bug+0xc0/0xc0
[  421.038292]  ? do_raw_spin_unlock+0xa7/0x330
[  421.042712]  ? zap_class+0x640/0x640
[  421.046428]  ? print_usage_bug+0xc0/0xc0
[  421.050487]  ? wq_watchdog_touch+0x9c/0xfe
[  421.054726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.060266]  ? check_preemption_disabled+0x48/0x280
[  421.065288]  ? __lock_is_held+0xb5/0x140
[  421.069369]  __alloc_pages_nodemask+0xa80/0xde0
[  421.074071]  ? zap_class+0x640/0x640
[  421.077791]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  421.082820]  ? find_held_lock+0x36/0x1c0
[  421.086981]  ? ____cache_alloc_node+0x1c7/0x1e0
[  421.091657]  ? lock_downgrade+0x900/0x900
[  421.096305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.101846]  cache_grow_begin+0xa5/0x8c0
[  421.105902]  ? do_raw_spin_unlock+0xa7/0x330
[  421.110318]  fallback_alloc+0x204/0x2e0
[  421.114345]  ____cache_alloc_node+0x1c7/0x1e0
[  421.118874]  kmem_cache_alloc_node+0xe3/0x730
[  421.123374]  ? ipv6_get_ifaddr+0x42e/0x620
[  421.127618]  __alloc_skb+0x119/0x770
[  421.131344]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.136626]  ? netdev_alloc_frag+0x1f0/0x1f0
[  421.141082]  ? lock_downgrade+0x900/0x900
[  421.145238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.150769]  ? refcount_sub_and_test_checked+0x203/0x310
[  421.156236]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  421.161676]  ? addrconf_rs_timer+0x690/0x690
[  421.166093]  ndisc_alloc_skb+0x144/0x340
[  421.170156]  ndisc_send_rs+0x331/0x6e0
[  421.174045]  addrconf_rs_timer+0x314/0x690
[  421.178279]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.182536]  call_timer_fn+0x272/0x920
[  421.186424]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.190652]  ? process_timeout+0x40/0x40
[  421.194723]  ? mark_held_locks+0xc7/0x130
[  421.198862]  ? _raw_spin_unlock_irq+0x27/0x80
[  421.203351]  ? _raw_spin_unlock_irq+0x27/0x80
[  421.207856]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.212090]  ? lockdep_hardirqs_on+0x296/0x5b0
[  421.216713]  ? trace_hardirqs_on+0xbd/0x310
[  421.221063]  ? kasan_check_read+0x11/0x20
[  421.225219]  ? __run_timers+0x7da/0xc70
[  421.229191]  ? trace_hardirqs_off_caller+0x310/0x310
[  421.234292]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.238535]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.242762]  __run_timers+0x7e5/0xc70
[  421.246591]  ? timer_fixup_init+0x70/0x70
[  421.250743]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  421.255771]  ? zap_class+0x640/0x640
[  421.259496]  ? print_usage_bug+0xc0/0xc0
[  421.263561]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  421.268794]  ? find_held_lock+0x36/0x1c0
[  421.272879]  ? zap_class+0x640/0x640
[  421.276596]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.282135]  ? check_preemption_disabled+0x48/0x280
[  421.287159]  ? __lock_is_held+0xb5/0x140
[  421.291221]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.296758]  ? check_preemption_disabled+0x48/0x280
[  421.301789]  run_timer_softirq+0x52/0xb0
[  421.305850]  ? rcu_read_lock_sched_held+0x14f/0x180
[  421.310869]  __do_softirq+0x308/0xb7e
[  421.314673]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  421.319166]  ? lock_downgrade+0x900/0x900
[  421.323314]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  421.328439]  ? pvclock_read_flags+0x160/0x160
[  421.332932]  ? lapic_next_event+0x5a/0x90
[  421.337080]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.342631]  ? kvm_clock_read+0x18/0x30
[  421.346602]  ? kvm_sched_clock_read+0x9/0x20
[  421.351019]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.356587]  ? check_preemption_disabled+0x48/0x280
[  421.361614]  irq_exit+0x17f/0x1c0
[  421.365072]  smp_apic_timer_interrupt+0x1cb/0x760
[  421.369914]  ? smp_call_function_single_interrupt+0x159/0x650
[  421.375803]  ? smp_call_function_single_interrupt+0x650/0x650
[  421.381691]  ? interrupt_entry+0xb5/0xc0
[  421.385752]  ? trace_hardirqs_off_caller+0xbb/0x310
[  421.390772]  ? trace_hardirqs_off_caller+0xbb/0x310
[  421.395805]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  421.400648]  ? trace_hardirqs_on_caller+0x310/0x310
[  421.405667]  ? trace_hardirqs_on_caller+0x310/0x310
[  421.410686]  ? task_prio+0x50/0x50
[  421.414232]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.419774]  ? check_preemption_disabled+0x48/0x280
[  421.424805]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  421.429653]  apic_timer_interrupt+0xf/0x20
[  421.433877]  </IRQ>
[  421.436118] RIP: 0010:dump_stack+0x358/0x39d
[  421.440528] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  421.459458] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  421.467164] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  421.474438] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  421.481704] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  421.488970] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  421.496247] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  421.503569]  ? dump_stack+0x34f/0x39d
[  421.507429]  ? dump_stack_print_info.cold.1+0x20/0x20
[  421.512624]  ? mark_held_locks+0x130/0x130
[  421.516863]  ? mark_held_locks+0x130/0x130
[  421.521102]  dump_header+0x27b/0xf72
[  421.524826]  ? pagefault_out_of_memory+0x197/0x197
[  421.529761]  ? __lock_acquire+0x62f/0x4c20
[  421.533998]  ? percpu_ref_get_many+0x240/0x240
[  421.538584]  ? print_usage_bug+0xc0/0xc0
[  421.542642]  ? zap_class+0x640/0x640
[  421.546349]  ? print_usage_bug+0xc0/0xc0
[  421.550403]  ? print_usage_bug+0xc0/0xc0
[  421.554481]  ? zap_class+0x640/0x640
[  421.558208]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.563744]  ? find_held_lock+0x36/0x1c0
[  421.567857]  ? mark_held_locks+0xc7/0x130
[  421.571998]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  421.577120]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  421.582256]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  421.586882]  ? trace_hardirqs_on+0xbd/0x310
[  421.591203]  ? kasan_check_read+0x11/0x20
[  421.595367]  ? ___ratelimit+0x3b4/0x672
[  421.599346]  ? trace_hardirqs_off_caller+0x310/0x310
[  421.604455]  ? trace_hardirqs_on+0x310/0x310
[  421.608865]  ? lock_downgrade+0x900/0x900
[  421.613025]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  421.618129]  ? ___ratelimit+0x3b9/0x672
[  421.622103]  ? idr_get_free+0xf70/0xf70
[  421.626080]  ? find_held_lock+0x36/0x1c0
[  421.630163]  oom_kill_process.cold.27+0x10/0x903
[  421.634918]  ? zap_class+0x640/0x640
[  421.638649]  ? check_preemption_disabled+0x48/0x280
[  421.643719]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  421.648652]  ? kasan_check_read+0x11/0x20
[  421.652831]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.658140]  ? oom_evaluate_task+0x540/0x540
[  421.662547]  ? find_held_lock+0x36/0x1c0
[  421.666639]  ? out_of_memory+0x974/0x1430
[  421.671033]  ? lock_downgrade+0x900/0x900
[  421.675181]  ? check_preemption_disabled+0x48/0x280
[  421.680208]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  421.685134]  ? kasan_check_read+0x11/0x20
[  421.689287]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.694572]  ? rcu_softirq_qs+0x20/0x20
[  421.698572]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.704107]  ? oom_evaluate_task+0x302/0x540
[  421.708528]  out_of_memory+0xa84/0x1430
[  421.712508]  ? oom_killer_disable+0x3a0/0x3a0
[  421.717003]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  421.721943]  ? __ww_mutex_check_waiters+0x160/0x160
[  421.726971]  __alloc_pages_slowpath+0x2354/0x2e10
[  421.731850]  ? warn_alloc+0x120/0x120
[  421.735644]  ? mark_held_locks+0x130/0x130
[  421.739879]  ? find_get_entry+0xaae/0x1120
[  421.744120]  ? filemap_map_pages+0x1a20/0x1a20
[  421.748722]  ? zap_class+0x640/0x640
[  421.752447]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.757985]  ? check_preemption_disabled+0x48/0x280
[  421.763016]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.768553]  ? should_fail+0x22d/0xd01
[  421.772444]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  421.777567]  ? zap_class+0x640/0x640
[  421.781305]  ? __lock_is_held+0xb5/0x140
[  421.785374]  ? mark_held_locks+0x130/0x130
[  421.789611]  ? lock_release+0xa00/0xa00
[  421.793599]  ? perf_trace_sched_process_exec+0x860/0x860
[  421.799533]  ? xa_load+0x2ba/0x460
[  421.803072]  ? lock_downgrade+0x900/0x900
[  421.807223]  ? __might_sleep+0x95/0x190
[  421.811201]  __alloc_pages_nodemask+0xa80/0xde0
[  421.815891]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  421.820906]  ? __page_cache_alloc+0x191/0x5c0
[  421.825396]  ? xa_load+0x2e1/0x460
[  421.828933]  ? xa_clear_mark+0x40/0x40
[  421.832822]  ? zap_class+0x640/0x640
[  421.836538]  ? zap_class+0x640/0x640
[  421.840246]  ? zap_class+0x640/0x640
[  421.843957]  ? __do_page_cache_readahead+0x663/0x810
[  421.849063]  ? find_held_lock+0x36/0x1c0
[  421.853128]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  421.858687]  alloc_pages_current+0x173/0x350
[  421.863115]  __page_cache_alloc+0x38c/0x5c0
[  421.867434]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  421.872356]  ? kasan_check_read+0x11/0x20
[  421.876496]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.881773]  ? generic_perform_write+0x6a0/0x6a0
[  421.886545]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.892081]  ? check_preemption_disabled+0x48/0x280
[  421.897116]  filemap_fault+0x1595/0x25f0
[  421.901183]  ? __lock_page_or_retry+0xa00/0xa00
[  421.905850]  ? mark_held_locks+0x130/0x130
[  421.910112]  ? filemap_map_pages+0xd6b/0x1a20
[  421.914603]  ? lock_downgrade+0x900/0x900
[  421.918746]  ? check_preemption_disabled+0x48/0x280
[  421.923774]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  421.928704]  ? kasan_check_read+0x11/0x20
[  421.932938]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.938208]  ? rcu_softirq_qs+0x20/0x20
[  421.942203]  ? filemap_map_pages+0xd92/0x1a20
[  421.946734]  ? find_get_entries_tag+0x1400/0x1400
[  421.951573]  ? debug_object_destroy+0x2b0/0x2b0
[  421.956257]  ? lock_pi_update_atomic+0x150/0x150
[  421.961029]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.966574]  ? lock_acquire+0x1ed/0x520
[  421.970576]  ? ext4_filemap_fault+0x7a/0xad
[  421.974986]  ? lock_release+0xa00/0xa00
[  421.978961]  ? perf_trace_sched_process_exec+0x860/0x860
[  421.984416]  ? print_usage_bug+0xc0/0xc0
[  421.988474]  ? print_usage_bug+0xc0/0xc0
[  421.992544]  ? down_read+0x8d/0x120
[  421.996165]  ? ext4_filemap_fault+0x7a/0xad
[  422.000517]  ? __down_interruptible+0x700/0x700
[  422.005227]  ext4_filemap_fault+0x82/0xad
[  422.009378]  __do_fault+0x100/0x6b0
[  422.013017]  ? pmd_devmap_trans_unstable+0x220/0x220
[  422.018121]  ? mark_held_locks+0x130/0x130
[  422.022447]  ? mark_held_locks+0x130/0x130
[  422.026697]  ? debug_smp_processor_id+0x1c/0x20
[  422.031364]  ? perf_trace_lock+0x14d/0x7a0
[  422.035603]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.041176]  __handle_mm_fault+0x3ea0/0x5be0
[  422.045591]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  422.050444]  ? lock_is_held_type+0x210/0x210
[  422.054867]  ? ksys_dup3+0x680/0x680
[  422.058607]  ? zap_class+0x640/0x640
[  422.062323]  ? zap_class+0x640/0x640
[  422.066044]  ? __x64_sys_futex+0x53e/0x6a0
[  422.070284]  ? find_held_lock+0x36/0x1c0
[  422.074355]  ? handle_mm_fault+0x42a/0xc70
[  422.078617]  ? lock_downgrade+0x900/0x900
[  422.082808]  ? check_preemption_disabled+0x48/0x280
[  422.087823]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  422.092751]  ? kasan_check_read+0x11/0x20
[  422.096927]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  422.102199]  ? rcu_softirq_qs+0x20/0x20
[  422.106172]  ? trace_hardirqs_off_caller+0x310/0x310
[  422.111286]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.116827]  ? check_preemption_disabled+0x48/0x280
[  422.121846]  handle_mm_fault+0x54f/0xc70
[  422.125905]  ? __handle_mm_fault+0x5be0/0x5be0
[  422.130490]  ? find_vma+0x34/0x190
[  422.134049]  __do_page_fault+0x5e8/0xe60
[  422.138123]  ? trace_hardirqs_off+0xb8/0x310
[  422.142570]  do_page_fault+0xf2/0x7e0
[  422.146378]  ? vmalloc_sync_all+0x30/0x30
[  422.150548]  ? error_entry+0x70/0xd0
[  422.154257]  ? trace_hardirqs_off_caller+0xbb/0x310
[  422.159302]  ? trace_hardirqs_on_caller+0xc0/0x310
[  422.164236]  ? syscall_return_slowpath+0x5e0/0x5e0
[  422.169183]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.174092]  ? trace_hardirqs_on_caller+0x310/0x310
[  422.179112]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  422.184603]  ? prepare_exit_to_usermode+0x291/0x3b0
[  422.189636]  ? page_fault+0x8/0x30
[  422.193181]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.198037]  ? page_fault+0x8/0x30
[  422.201575]  page_fault+0x1e/0x30
[  422.205031] RIP: 0033:0x40f9c0
[  422.208233] Code: Bad RIP value.
[  422.211608] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  422.216971] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  422.224253] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  422.231519] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  422.238794] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  422.246146] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  422.253430] warn_alloc_show_mem: 1 callbacks suppressed
[  422.253442] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  422.253443] Mem-Info:
[  422.253486] active_anon:54833 inactive_anon:712 isolated_anon:0
[  422.253486]  active_file:11 inactive_file:12 isolated_file:0
[  422.253486]  unevictable:0 dirty:0 writeback:0 unstable:0
[  422.253486]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  422.253486]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  422.253486]  free:13768 free_pcp:742 free_cma:0
[  422.258830] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  422.265587] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  422.267982] Call Trace:
[  422.300850] 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
[  422.310204]  dump_stack+0x244/0x39d
[  422.337754] lowmem_reserve[]: 0 2818 6321 6321
[  422.340333]  ? dump_stack_print_info.cold.1+0x20/0x20
[  422.366417] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  422.370050]  warn_alloc.cold.116+0xb7/0x1bd
[  422.374590] lowmem_reserve[]: 0 0 3503 3503
[  422.379782]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  422.407537] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  422.411919]  ? lock_downgrade+0x900/0x900
[  422.416208] lowmem_reserve[]: 0 0 0 0
[  422.421049]  ? trace_hardirqs_off+0xb8/0x310
[  422.450167] 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
[  422.454329]  ? trace_hardirqs_off+0xb8/0x310
[  422.458102] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  422.462509]  __alloc_pages_slowpath+0x26e8/0x2e10
[  422.476089] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  422.480529]  ? warn_alloc+0x120/0x120
[  422.496351] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  422.501190]  ? print_usage_bug+0xc0/0xc0
[  422.516526] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  422.520314]  ? warn_alloc+0x120/0x120
[  422.529124] 782 total pagecache pages
[  422.533180]  ? warn_alloc+0x120/0x120
[  422.541736] 0 pages in swap cache
[  422.545538]  ? print_usage_bug+0xc0/0xc0
[  422.549316] Swap cache stats: add 0, delete 0, find 0/0
[  422.553104]  ? print_usage_bug+0xc0/0xc0
[  422.556530] Free swap  = 0kB
[  422.560582]  ? __lock_acquire+0x62f/0x4c20
[  422.565961] Total swap = 0kB
[  422.570022]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.573021] 1965979 pages RAM
[  422.577253]  ? should_fail+0x22d/0xd01
[  422.580246] 0 pages HighMem/MovableOnly
[  422.585775]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  422.588868] 342853 pages reserved
[  422.592747]  ? __lock_acquire+0x62f/0x4c20
[  422.596697] 0 pages cma reserved
[  422.601794]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  422.605288] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  422.609459]  ? __lock_acquire+0x62f/0x4c20
[  422.609471]  ? should_fail+0x22d/0xd01
[  422.609484]  ? find_held_lock+0x36/0x1c0
[  422.609518]  ? mark_held_locks+0x130/0x130
[  422.612947] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  422.617958]  ? mark_held_locks+0x130/0x130
[  422.624425] syz-fuzzer cpuset=/ mems_allowed=0
[  422.628650]  ? zap_class+0x640/0x640
[  422.663524]  ? mark_held_locks+0xc7/0x130
[  422.667669]  ? do_raw_spin_unlock+0xa7/0x330
[  422.672093]  ? zap_class+0x640/0x640
[  422.675807]  ? print_usage_bug+0xc0/0xc0
[  422.679874]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.685426]  ? check_preemption_disabled+0x48/0x280
[  422.690449]  ? __lock_is_held+0xb5/0x140
[  422.694518]  __alloc_pages_nodemask+0xa80/0xde0
[  422.699190]  ? zap_class+0x640/0x640
[  422.702913]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  422.707935]  ? find_held_lock+0x36/0x1c0
[  422.712013]  ? ____cache_alloc_node+0x1c7/0x1e0
[  422.716695]  ? lock_downgrade+0x900/0x900
[  422.720844]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.726396]  cache_grow_begin+0xa5/0x8c0
[  422.730470]  ? do_raw_spin_unlock+0xa7/0x330
[  422.734915]  fallback_alloc+0x204/0x2e0
[  422.738897]  ____cache_alloc_node+0x1c7/0x1e0
[  422.743429]  kmem_cache_alloc_node+0xe3/0x730
[  422.747943]  ? ipv6_get_ifaddr+0x42e/0x620
[  422.752208]  __alloc_skb+0x119/0x770
[  422.755921]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  422.761203]  ? netdev_alloc_frag+0x1f0/0x1f0
[  422.765614]  ? lock_downgrade+0x900/0x900
[  422.769769]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.775314]  ? refcount_sub_and_test_checked+0x203/0x310
[  422.780770]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  422.786236]  ? addrconf_rs_timer+0x690/0x690
[  422.790656]  ndisc_alloc_skb+0x144/0x340
[  422.794721]  ndisc_send_rs+0x331/0x6e0
[  422.798747]  addrconf_rs_timer+0x314/0x690
[  422.802981]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.807235]  call_timer_fn+0x272/0x920
[  422.811126]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.815357]  ? process_timeout+0x40/0x40
[  422.819416]  ? __run_timers+0x7da/0xc70
[  422.823399]  ? _raw_spin_unlock_irq+0x27/0x80
[  422.827899]  ? _raw_spin_unlock_irq+0x27/0x80
[  422.832415]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.836683]  ? lockdep_hardirqs_on+0x296/0x5b0
[  422.841302]  ? trace_hardirqs_on+0xbd/0x310
[  422.845621]  ? kasan_check_read+0x11/0x20
[  422.849760]  ? __run_timers+0x7da/0xc70
[  422.853748]  ? trace_hardirqs_off_caller+0x310/0x310
[  422.858850]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.863103]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.867359]  __run_timers+0x7e5/0xc70
[  422.871176]  ? timer_fixup_init+0x70/0x70
[  422.875351]  ? _raw_spin_unlock_irq+0x27/0x80
[  422.879876]  ? _raw_spin_unlock_irq+0x27/0x80
[  422.884375]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  422.888959]  ? trace_hardirqs_on+0xbd/0x310
[  422.893283]  ? kasan_check_read+0x11/0x20
[  422.897431]  ? finish_task_switch+0x1f4/0x910
[  422.901926]  ? trace_hardirqs_off_caller+0x310/0x310
[  422.907032]  ? compat_start_thread+0x80/0x80
[  422.911465]  ? pvclock_read_flags+0x160/0x160
[  422.915969]  ? __switch_to_asm+0x34/0x70
[  422.920034]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.925568]  ? check_preemption_disabled+0x48/0x280
[  422.930588]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  422.936137]  ? rcu_pm_notify+0xc0/0xc0
[  422.940026]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.945587]  ? check_preemption_disabled+0x48/0x280
[  422.950615]  run_timer_softirq+0x52/0xb0
[  422.954698]  ? rcu_read_lock_sched_held+0x14f/0x180
[  422.959718]  __do_softirq+0x308/0xb7e
[  422.963546]  ? retint_kernel+0x2d/0x2d
[  422.967437]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  422.972535]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  422.977979]  ? trace_hardirqs_on+0x310/0x310
[  422.982395]  ? schedule+0x108/0x460
[  422.986044]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  422.990808]  ? trace_hardirqs_off+0xb8/0x310
[  422.995226]  ? smpboot_thread_fn+0x68b/0xa00
[  422.999656]  ? trace_hardirqs_on+0x310/0x310
[  423.004063]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.009602]  ? check_preemption_disabled+0x48/0x280
[  423.014634]  ? takeover_tasklets+0xa90/0xa90
[  423.019052]  run_ksoftirqd+0x5e/0x100
[  423.022867]  smpboot_thread_fn+0x68b/0xa00
[  423.027109]  ? sort_range+0x30/0x30
[  423.030734]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  423.035944]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.041485]  ? __kthread_parkme+0xfb/0x1a0
[  423.045724]  ? sort_range+0x30/0x30
[  423.049352]  kthread+0x35a/0x440
[  423.052720]  ? kthread_stop+0x900/0x900
[  423.056704]  ret_from_fork+0x3a/0x50
[  423.060434] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  423.060516] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  423.067364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  423.067373] Call Trace:
[  423.073943] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  423.083194]  <IRQ>
[  423.085766] ksoftirqd/0 cpuset=/ mems_allowed=0
[  423.096079]  dump_stack+0x244/0x39d
[  423.106493]  ? dump_stack_print_info.cold.1+0x20/0x20
[  423.111700]  warn_alloc.cold.116+0xb7/0x1bd
[  423.116029]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  423.120875]  ? lock_downgrade+0x900/0x900
[  423.125037]  ? trace_hardirqs_off+0xb8/0x310
[  423.129452]  ? trace_hardirqs_off+0xb8/0x310
[  423.133886]  __alloc_pages_slowpath+0x26e8/0x2e10
[  423.138760]  ? warn_alloc+0x120/0x120
[  423.142586]  ? print_usage_bug+0xc0/0xc0
[  423.146648]  ? warn_alloc+0x120/0x120
[  423.150453]  ? warn_alloc+0x120/0x120
[  423.154252]  ? print_usage_bug+0xc0/0xc0
[  423.158317]  ? print_usage_bug+0xc0/0xc0
[  423.162377]  ? __lock_acquire+0x62f/0x4c20
[  423.166612]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.172151]  ? should_fail+0x22d/0xd01
[  423.176074]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  423.181174]  ? __lock_acquire+0x62f/0x4c20
[  423.185409]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  423.190511]  ? __lock_acquire+0x62f/0x4c20
[  423.194758]  ? should_fail+0x22d/0xd01
[  423.198648]  ? find_held_lock+0x36/0x1c0
[  423.202712]  ? mark_held_locks+0x130/0x130
[  423.206947]  ? mark_held_locks+0x130/0x130
[  423.211180]  ? zap_class+0x640/0x640
[  423.214894]  ? zap_class+0x640/0x640
[  423.218607]  ? print_usage_bug+0xc0/0xc0
[  423.222662]  ? do_raw_spin_unlock+0xa7/0x330
[  423.227079]  ? zap_class+0x640/0x640
[  423.230808]  ? print_usage_bug+0xc0/0xc0
[  423.234866]  ? wq_watchdog_touch+0x9c/0xfe
[  423.239095]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.244626]  ? check_preemption_disabled+0x48/0x280
[  423.249662]  ? __lock_is_held+0xb5/0x140
[  423.253723]  __alloc_pages_nodemask+0xa80/0xde0
[  423.258388]  ? zap_class+0x640/0x640
[  423.262106]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  423.267130]  ? find_held_lock+0x36/0x1c0
[  423.271208]  ? ____cache_alloc_node+0x1c7/0x1e0
[  423.275874]  ? lock_downgrade+0x900/0x900
[  423.280061]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.285621]  cache_grow_begin+0xa5/0x8c0
[  423.289681]  ? do_raw_spin_unlock+0xa7/0x330
[  423.294163]  fallback_alloc+0x204/0x2e0
[  423.298145]  ____cache_alloc_node+0x1c7/0x1e0
[  423.302640]  kmem_cache_alloc_node+0xe3/0x730
[  423.307132]  ? ipv6_get_ifaddr+0x42e/0x620
[  423.311390]  __alloc_skb+0x119/0x770
[  423.315093]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.320376]  ? netdev_alloc_frag+0x1f0/0x1f0
[  423.324846]  ? lock_downgrade+0x900/0x900
[  423.329036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.334569]  ? refcount_sub_and_test_checked+0x203/0x310
[  423.340023]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  423.345497]  ? addrconf_rs_timer+0x690/0x690
[  423.349912]  ndisc_alloc_skb+0x144/0x340
[  423.353973]  ndisc_send_rs+0x331/0x6e0
[  423.357879]  addrconf_rs_timer+0x314/0x690
[  423.362145]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.366388]  call_timer_fn+0x272/0x920
[  423.370268]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.374513]  ? process_timeout+0x40/0x40
[  423.378579]  ? mark_held_locks+0xc7/0x130
[  423.382736]  ? _raw_spin_unlock_irq+0x27/0x80
[  423.387246]  ? _raw_spin_unlock_irq+0x27/0x80
[  423.391750]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.396025]  ? lockdep_hardirqs_on+0x296/0x5b0
[  423.400652]  ? trace_hardirqs_on+0xbd/0x310
[  423.404967]  ? kasan_check_read+0x11/0x20
[  423.409111]  ? __run_timers+0x7da/0xc70
[  423.413080]  ? trace_hardirqs_off_caller+0x310/0x310
[  423.418184]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.422421]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  423.426669]  __run_timers+0x7e5/0xc70
[  423.430495]  ? timer_fixup_init+0x70/0x70
[  423.434746]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  423.439765]  ? zap_class+0x640/0x640
[  423.443489]  ? print_usage_bug+0xc0/0xc0
[  423.447563]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  423.452776]  ? find_held_lock+0x36/0x1c0
[  423.456877]  ? zap_class+0x640/0x640
[  423.460595]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.466147]  ? check_preemption_disabled+0x48/0x280
[  423.471182]  ? __lock_is_held+0xb5/0x140
[  423.475239]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.480768]  ? check_preemption_disabled+0x48/0x280
[  423.485809]  run_timer_softirq+0x52/0xb0
[  423.489900]  ? rcu_read_lock_sched_held+0x14f/0x180
[  423.494911]  __do_softirq+0x308/0xb7e
[  423.498729]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  423.503221]  ? lock_downgrade+0x900/0x900
[  423.507409]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  423.512513]  ? pvclock_read_flags+0x160/0x160
[  423.517013]  ? lapic_next_event+0x5a/0x90
[  423.521157]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.526710]  ? kvm_clock_read+0x18/0x30
[  423.530679]  ? kvm_sched_clock_read+0x9/0x20
[  423.535091]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.540632]  ? check_preemption_disabled+0x48/0x280
[  423.545763]  irq_exit+0x17f/0x1c0
[  423.549228]  smp_apic_timer_interrupt+0x1cb/0x760
[  423.554089]  ? smp_call_function_single_interrupt+0x159/0x650
[  423.559973]  ? smp_call_function_single_interrupt+0x650/0x650
[  423.565862]  ? interrupt_entry+0xb5/0xc0
[  423.569929]  ? trace_hardirqs_off_caller+0xbb/0x310
[  423.574944]  ? trace_hardirqs_off_caller+0xbb/0x310
[  423.579963]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  423.584810]  ? trace_hardirqs_on_caller+0x310/0x310
[  423.589829]  ? trace_hardirqs_on_caller+0x310/0x310
[  423.594846]  ? task_prio+0x50/0x50
[  423.598432]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.603975]  ? check_preemption_disabled+0x48/0x280
[  423.609012]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  423.613862]  apic_timer_interrupt+0xf/0x20
[  423.618088]  </IRQ>
[  423.620342] RIP: 0010:dump_stack+0x358/0x39d
[  423.624748] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  423.643646] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  423.651349] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  423.658619] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  423.665887] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  423.673306] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  423.680567] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  423.687859]  ? dump_stack+0x34f/0x39d
[  423.691661]  ? dump_stack_print_info.cold.1+0x20/0x20
[  423.696845]  ? mark_held_locks+0x130/0x130
[  423.701072]  ? mark_held_locks+0x130/0x130
[  423.705315]  dump_header+0x27b/0xf72
[  423.709071]  ? pagefault_out_of_memory+0x197/0x197
[  423.714019]  ? __lock_acquire+0x62f/0x4c20
[  423.718267]  ? percpu_ref_get_many+0x240/0x240
[  423.722847]  ? print_usage_bug+0xc0/0xc0
[  423.726906]  ? zap_class+0x640/0x640
[  423.730641]  ? print_usage_bug+0xc0/0xc0
[  423.734717]  ? print_usage_bug+0xc0/0xc0
[  423.738772]  ? zap_class+0x640/0x640
[  423.742530]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.748069]  ? find_held_lock+0x36/0x1c0
[  423.752141]  ? mark_held_locks+0xc7/0x130
[  423.756336]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  423.761467]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  423.766574]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  423.771174]  ? trace_hardirqs_on+0xbd/0x310
[  423.775493]  ? kasan_check_read+0x11/0x20
[  423.779636]  ? ___ratelimit+0x3b4/0x672
[  423.783606]  ? trace_hardirqs_off_caller+0x310/0x310
[  423.788721]  ? trace_hardirqs_on+0x310/0x310
[  423.793127]  ? lock_downgrade+0x900/0x900
[  423.797273]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  423.802388]  ? ___ratelimit+0x3b9/0x672
[  423.806389]  ? idr_get_free+0xf70/0xf70
[  423.810358]  ? find_held_lock+0x36/0x1c0
[  423.814426]  oom_kill_process.cold.27+0x10/0x903
[  423.819182]  ? zap_class+0x640/0x640
[  423.822893]  ? check_preemption_disabled+0x48/0x280
[  423.827909]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  423.832862]  ? kasan_check_read+0x11/0x20
[  423.837018]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.842307]  ? oom_evaluate_task+0x540/0x540
[  423.846742]  ? find_held_lock+0x36/0x1c0
[  423.850840]  ? out_of_memory+0x974/0x1430
[  423.854986]  ? lock_downgrade+0x900/0x900
[  423.859138]  ? check_preemption_disabled+0x48/0x280
[  423.864154]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  423.869075]  ? kasan_check_read+0x11/0x20
[  423.873219]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.878533]  ? rcu_softirq_qs+0x20/0x20
[  423.882507]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.888037]  ? oom_evaluate_task+0x302/0x540
[  423.892461]  out_of_memory+0xa84/0x1430
[  423.896458]  ? oom_killer_disable+0x3a0/0x3a0
[  423.900952]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  423.905881]  ? __ww_mutex_check_waiters+0x160/0x160
[  423.910904]  __alloc_pages_slowpath+0x2354/0x2e10
[  423.915766]  ? warn_alloc+0x120/0x120
[  423.919563]  ? mark_held_locks+0x130/0x130
[  423.923838]  ? find_get_entry+0xaae/0x1120
[  423.928095]  ? filemap_map_pages+0x1a20/0x1a20
[  423.932673]  ? zap_class+0x640/0x640
[  423.936384]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.941915]  ? check_preemption_disabled+0x48/0x280
[  423.946926]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.952460]  ? should_fail+0x22d/0xd01
[  423.956348]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  423.961445]  ? zap_class+0x640/0x640
[  423.965220]  ? __lock_is_held+0xb5/0x140
[  423.969283]  ? mark_held_locks+0x130/0x130
[  423.973513]  ? lock_release+0xa00/0xa00
[  423.977499]  ? perf_trace_sched_process_exec+0x860/0x860
[  423.982961]  ? xa_load+0x2ba/0x460
[  423.986499]  ? lock_downgrade+0x900/0x900
[  423.990644]  ? __might_sleep+0x95/0x190
[  423.994616]  __alloc_pages_nodemask+0xa80/0xde0
[  423.999298]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  424.004341]  ? __page_cache_alloc+0x191/0x5c0
[  424.008847]  ? xa_load+0x2e1/0x460
[  424.012402]  ? xa_clear_mark+0x40/0x40
[  424.016285]  ? zap_class+0x640/0x640
[  424.020004]  ? zap_class+0x640/0x640
[  424.023736]  ? zap_class+0x640/0x640
[  424.027449]  ? __do_page_cache_readahead+0x663/0x810
[  424.032566]  ? find_held_lock+0x36/0x1c0
[  424.036632]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  424.042279]  alloc_pages_current+0x173/0x350
[  424.046683]  __page_cache_alloc+0x38c/0x5c0
[  424.050995]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  424.055951]  ? kasan_check_read+0x11/0x20
[  424.060113]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.065391]  ? generic_perform_write+0x6a0/0x6a0
[  424.070241]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.075790]  ? check_preemption_disabled+0x48/0x280
[  424.080819]  filemap_fault+0x1595/0x25f0
[  424.084909]  ? __lock_page_or_retry+0xa00/0xa00
[  424.089595]  ? mark_held_locks+0x130/0x130
[  424.093856]  ? filemap_map_pages+0xd6b/0x1a20
[  424.098369]  ? lock_downgrade+0x900/0x900
[  424.102525]  ? check_preemption_disabled+0x48/0x280
[  424.107545]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  424.112477]  ? kasan_check_read+0x11/0x20
[  424.116618]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.121889]  ? rcu_softirq_qs+0x20/0x20
[  424.125884]  ? filemap_map_pages+0xd92/0x1a20
[  424.130420]  ? find_get_entries_tag+0x1400/0x1400
[  424.135273]  ? debug_object_destroy+0x2b0/0x2b0
[  424.139944]  ? lock_pi_update_atomic+0x150/0x150
[  424.144713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.150275]  ? lock_acquire+0x1ed/0x520
[  424.154256]  ? ext4_filemap_fault+0x7a/0xad
[  424.158613]  ? lock_release+0xa00/0xa00
[  424.162595]  ? perf_trace_sched_process_exec+0x860/0x860
[  424.168048]  ? print_usage_bug+0xc0/0xc0
[  424.172104]  ? print_usage_bug+0xc0/0xc0
[  424.176206]  ? down_read+0x8d/0x120
[  424.179848]  ? ext4_filemap_fault+0x7a/0xad
[  424.184179]  ? __down_interruptible+0x700/0x700
[  424.188844]  ext4_filemap_fault+0x82/0xad
[  424.193015]  __do_fault+0x100/0x6b0
[  424.196697]  ? pmd_devmap_trans_unstable+0x220/0x220
[  424.201829]  ? mark_held_locks+0x130/0x130
[  424.206068]  ? mark_held_locks+0x130/0x130
[  424.210300]  ? debug_smp_processor_id+0x1c/0x20
[  424.215043]  ? perf_trace_lock+0x14d/0x7a0
[  424.219275]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.224811]  __handle_mm_fault+0x3ea0/0x5be0
[  424.229249]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  424.234093]  ? lock_is_held_type+0x210/0x210
[  424.238513]  ? ksys_dup3+0x680/0x680
[  424.242232]  ? zap_class+0x640/0x640
[  424.245941]  ? zap_class+0x640/0x640
[  424.249648]  ? __x64_sys_futex+0x53e/0x6a0
[  424.253877]  ? find_held_lock+0x36/0x1c0
[  424.257942]  ? handle_mm_fault+0x42a/0xc70
[  424.262232]  ? lock_downgrade+0x900/0x900
[  424.266481]  ? check_preemption_disabled+0x48/0x280
[  424.271493]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  424.276416]  ? kasan_check_read+0x11/0x20
[  424.280560]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.285853]  ? rcu_softirq_qs+0x20/0x20
[  424.289841]  ? trace_hardirqs_off_caller+0x310/0x310
[  424.294945]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.300485]  ? check_preemption_disabled+0x48/0x280
[  424.305505]  handle_mm_fault+0x54f/0xc70
[  424.309582]  ? __handle_mm_fault+0x5be0/0x5be0
[  424.314174]  ? find_vma+0x34/0x190
[  424.317720]  __do_page_fault+0x5e8/0xe60
[  424.321787]  ? trace_hardirqs_off+0xb8/0x310
[  424.326220]  do_page_fault+0xf2/0x7e0
[  424.330045]  ? vmalloc_sync_all+0x30/0x30
[  424.334189]  ? error_entry+0x70/0xd0
[  424.337898]  ? trace_hardirqs_off_caller+0xbb/0x310
[  424.342922]  ? trace_hardirqs_on_caller+0xc0/0x310
[  424.347844]  ? syscall_return_slowpath+0x5e0/0x5e0
[  424.352797]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.357642]  ? trace_hardirqs_on_caller+0x310/0x310
[  424.362669]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  424.368128]  ? prepare_exit_to_usermode+0x291/0x3b0
[  424.373145]  ? page_fault+0x8/0x30
[  424.376716]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.381562]  ? page_fault+0x8/0x30
[  424.385102]  page_fault+0x1e/0x30
[  424.388549] RIP: 0033:0x40f9c0
[  424.391756] Code: Bad RIP value.
[  424.395150] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  424.400551] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  424.407811] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  424.415070] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  424.422335] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  424.429634] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  424.436958] warn_alloc_show_mem: 1 callbacks suppressed
[  424.436973] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  424.436975] Mem-Info:
[  424.437016] active_anon:54833 inactive_anon:712 isolated_anon:0
[  424.437016]  active_file:11 inactive_file:12 isolated_file:0
[  424.437016]  unevictable:0 dirty:0 writeback:0 unstable:0
[  424.437016]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  424.437016]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  424.437016]  free:13768 free_pcp:742 free_cma:0
[  424.442359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  424.449114] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  424.451515] Call Trace:
[  424.484377] 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
[  424.493750]  dump_stack+0x244/0x39d
[  424.521301] lowmem_reserve[]: 0 2818 6321 6321
[  424.523888]  ? dump_stack_print_info.cold.1+0x20/0x20
[  424.549966] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  424.553588]  warn_alloc.cold.116+0xb7/0x1bd
[  424.558136] lowmem_reserve[]: 0 0 3503 3503
[  424.563335]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  424.591069] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  424.595427]  ? lock_downgrade+0x900/0x900
[  424.599726] lowmem_reserve[]: 0 0 0 0
[  424.604596]  ? trace_hardirqs_off+0xb8/0x310
[  424.633730] 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
[  424.637884]  ? trace_hardirqs_off+0xb8/0x310
[  424.641653] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  424.646053]  __alloc_pages_slowpath+0x26e8/0x2e10
[  424.659558] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  424.664027]  ? warn_alloc+0x120/0x120
[  424.679808] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  424.684632]  ? print_usage_bug+0xc0/0xc0
[  424.699967] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  424.703753]  ? warn_alloc+0x120/0x120
[  424.712562] 782 total pagecache pages
[  424.716620]  ? warn_alloc+0x120/0x120
[  424.725178] 0 pages in swap cache
[  424.728966]  ? print_usage_bug+0xc0/0xc0
[  424.732745] Swap cache stats: add 0, delete 0, find 0/0
[  424.736559]  ? print_usage_bug+0xc0/0xc0
[  424.740025] Free swap  = 0kB
[  424.744099]  ? __lock_acquire+0x62f/0x4c20
[  424.749436] Total swap = 0kB
[  424.753488]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.756482] 1965979 pages RAM
[  424.760706]  ? should_fail+0x22d/0xd01
[  424.763697] 0 pages HighMem/MovableOnly
[  424.769227]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  424.772335] 342853 pages reserved
[  424.776213]  ? __lock_acquire+0x62f/0x4c20
[  424.780164] 0 pages cma reserved
[  424.785258]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  424.788740] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  424.792904]  ? __lock_acquire+0x62f/0x4c20
[  424.792917]  ? should_fail+0x22d/0xd01
[  424.792931]  ? find_held_lock+0x36/0x1c0
[  424.792951]  ? mark_held_locks+0x130/0x130
[  424.796363] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  424.801641]  ? mark_held_locks+0x130/0x130
[  424.808609] syz-fuzzer cpuset=/ mems_allowed=0
[  424.812848]  ? zap_class+0x640/0x640
[  424.847667]  ? mark_held_locks+0xc7/0x130
[  424.851816]  ? do_raw_spin_unlock+0xa7/0x330
[  424.856244]  ? zap_class+0x640/0x640
[  424.859960]  ? print_usage_bug+0xc0/0xc0
[  424.864028]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.869566]  ? check_preemption_disabled+0x48/0x280
[  424.874595]  ? __lock_is_held+0xb5/0x140
[  424.878659]  __alloc_pages_nodemask+0xa80/0xde0
[  424.883352]  ? zap_class+0x640/0x640
[  424.887083]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  424.892123]  ? find_held_lock+0x36/0x1c0
[  424.896210]  ? ____cache_alloc_node+0x1c7/0x1e0
[  424.900908]  ? lock_downgrade+0x900/0x900
[  424.905078]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.910618]  cache_grow_begin+0xa5/0x8c0
[  424.914683]  ? do_raw_spin_unlock+0xa7/0x330
[  424.919095]  fallback_alloc+0x204/0x2e0
[  424.923068]  ____cache_alloc_node+0x1c7/0x1e0
[  424.927581]  kmem_cache_alloc_node+0xe3/0x730
[  424.932093]  ? ipv6_get_ifaddr+0x42e/0x620
[  424.936335]  __alloc_skb+0x119/0x770
[  424.940046]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.945342]  ? netdev_alloc_frag+0x1f0/0x1f0
[  424.949783]  ? lock_downgrade+0x900/0x900
[  424.953942]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.959499]  ? refcount_sub_and_test_checked+0x203/0x310
[  424.964948]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  424.970395]  ? addrconf_rs_timer+0x690/0x690
[  424.974810]  ndisc_alloc_skb+0x144/0x340
[  424.978875]  ndisc_send_rs+0x331/0x6e0
[  424.982781]  addrconf_rs_timer+0x314/0x690
[  424.987046]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.991300]  call_timer_fn+0x272/0x920
[  424.995191]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.999421]  ? process_timeout+0x40/0x40
[  425.003497]  ? __run_timers+0x7da/0xc70
[  425.007472]  ? _raw_spin_unlock_irq+0x27/0x80
[  425.011978]  ? _raw_spin_unlock_irq+0x27/0x80
[  425.016484]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  425.020727]  ? lockdep_hardirqs_on+0x296/0x5b0
[  425.025316]  ? trace_hardirqs_on+0xbd/0x310
[  425.029638]  ? kasan_check_read+0x11/0x20
[  425.033796]  ? __run_timers+0x7da/0xc70
[  425.037786]  ? trace_hardirqs_off_caller+0x310/0x310
[  425.042907]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  425.047153]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  425.051399]  __run_timers+0x7e5/0xc70
[  425.055213]  ? timer_fixup_init+0x70/0x70
[  425.059372]  ? _raw_spin_unlock_irq+0x27/0x80
[  425.063883]  ? _raw_spin_unlock_irq+0x27/0x80
[  425.068382]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  425.072991]  ? trace_hardirqs_on+0xbd/0x310
[  425.077334]  ? kasan_check_read+0x11/0x20
[  425.081516]  ? finish_task_switch+0x1f4/0x910
[  425.086034]  ? trace_hardirqs_off_caller+0x310/0x310
[  425.091136]  ? compat_start_thread+0x80/0x80
[  425.095564]  ? pvclock_read_flags+0x160/0x160
[  425.100055]  ? __switch_to_asm+0x34/0x70
[  425.104118]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.109654]  ? check_preemption_disabled+0x48/0x280
[  425.114678]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  425.120221]  ? rcu_pm_notify+0xc0/0xc0
[  425.124127]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.129682]  ? check_preemption_disabled+0x48/0x280
[  425.134704]  run_timer_softirq+0x52/0xb0
[  425.138765]  ? rcu_read_lock_sched_held+0x14f/0x180
[  425.143785]  __do_softirq+0x308/0xb7e
[  425.147585]  ? retint_kernel+0x2d/0x2d
[  425.151485]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  425.156617]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  425.162081]  ? trace_hardirqs_on+0x310/0x310
[  425.166504]  ? schedule+0x108/0x460
[  425.170132]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  425.174913]  ? trace_hardirqs_off+0xb8/0x310
[  425.179340]  ? smpboot_thread_fn+0x68b/0xa00
[  425.183750]  ? trace_hardirqs_on+0x310/0x310
[  425.188162]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.193713]  ? check_preemption_disabled+0x48/0x280
[  425.198746]  ? takeover_tasklets+0xa90/0xa90
[  425.203156]  run_ksoftirqd+0x5e/0x100
[  425.206960]  smpboot_thread_fn+0x68b/0xa00
[  425.211198]  ? sort_range+0x30/0x30
[  425.214844]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  425.219962]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.225504]  ? __kthread_parkme+0xfb/0x1a0
[  425.229777]  ? sort_range+0x30/0x30
[  425.233404]  kthread+0x35a/0x440
[  425.236789]  ? kthread_stop+0x900/0x900
[  425.240807]  ret_from_fork+0x3a/0x50
[  425.244539] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  425.244611] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  425.251467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  425.251472] Call Trace:
[  425.251479]  <IRQ>
[  425.251496]  dump_stack+0x244/0x39d
[  425.251514]  ? dump_stack_print_info.cold.1+0x20/0x20
[  425.258065] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  425.267363]  warn_alloc.cold.116+0xb7/0x1bd
[  425.269929] ksoftirqd/0 cpuset=/ mems_allowed=0
[  425.272075]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  425.305059]  ? lock_downgrade+0x900/0x900
[  425.309233]  ? trace_hardirqs_off+0xb8/0x310
[  425.313651]  ? trace_hardirqs_off+0xb8/0x310
[  425.318088]  __alloc_pages_slowpath+0x26e8/0x2e10
[  425.322961]  ? warn_alloc+0x120/0x120
[  425.326766]  ? print_usage_bug+0xc0/0xc0
[  425.330834]  ? warn_alloc+0x120/0x120
[  425.334654]  ? warn_alloc+0x120/0x120
[  425.338494]  ? print_usage_bug+0xc0/0xc0
[  425.342566]  ? print_usage_bug+0xc0/0xc0
[  425.346659]  ? __lock_acquire+0x62f/0x4c20
[  425.350916]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.356459]  ? should_fail+0x22d/0xd01
[  425.360356]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  425.365462]  ? __lock_acquire+0x62f/0x4c20
[  425.369701]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  425.374807]  ? __lock_acquire+0x62f/0x4c20
[  425.379058]  ? should_fail+0x22d/0xd01
[  425.382943]  ? find_held_lock+0x36/0x1c0
[  425.387018]  ? mark_held_locks+0x130/0x130
[  425.391302]  ? mark_held_locks+0x130/0x130
[  425.395536]  ? zap_class+0x640/0x640
[  425.399253]  ? zap_class+0x640/0x640
[  425.402979]  ? print_usage_bug+0xc0/0xc0
[  425.407058]  ? do_raw_spin_unlock+0xa7/0x330
[  425.411466]  ? zap_class+0x640/0x640
[  425.415194]  ? print_usage_bug+0xc0/0xc0
[  425.419258]  ? wq_watchdog_touch+0x9c/0xfe
[  425.423500]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.429063]  ? check_preemption_disabled+0x48/0x280
[  425.434090]  ? __lock_is_held+0xb5/0x140
[  425.438163]  __alloc_pages_nodemask+0xa80/0xde0
[  425.442834]  ? zap_class+0x640/0x640
[  425.446552]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  425.451585]  ? find_held_lock+0x36/0x1c0
[  425.455657]  ? ____cache_alloc_node+0x1c7/0x1e0
[  425.460328]  ? lock_downgrade+0x900/0x900
[  425.464487]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.470048]  cache_grow_begin+0xa5/0x8c0
[  425.474109]  ? do_raw_spin_unlock+0xa7/0x330
[  425.478525]  fallback_alloc+0x204/0x2e0
[  425.482509]  ____cache_alloc_node+0x1c7/0x1e0
[  425.487019]  kmem_cache_alloc_node+0xe3/0x730
[  425.491539]  ? ipv6_get_ifaddr+0x42e/0x620
[  425.495805]  __alloc_skb+0x119/0x770
[  425.499520]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.504831]  ? netdev_alloc_frag+0x1f0/0x1f0
[  425.509242]  ? lock_downgrade+0x900/0x900
[  425.513418]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.518978]  ? refcount_sub_and_test_checked+0x203/0x310
[  425.524431]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  425.529896]  ? addrconf_rs_timer+0x690/0x690
[  425.534319]  ndisc_alloc_skb+0x144/0x340
[  425.538385]  ndisc_send_rs+0x331/0x6e0
[  425.542274]  addrconf_rs_timer+0x314/0x690
[  425.546512]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  425.550770]  call_timer_fn+0x272/0x920
[  425.554709]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  425.558945]  ? process_timeout+0x40/0x40
[  425.563022]  ? mark_held_locks+0xc7/0x130
[  425.567182]  ? _raw_spin_unlock_irq+0x27/0x80
[  425.571676]  ? _raw_spin_unlock_irq+0x27/0x80
[  425.576168]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  425.580417]  ? lockdep_hardirqs_on+0x296/0x5b0
[  425.585003]  ? trace_hardirqs_on+0xbd/0x310
[  425.589333]  ? kasan_check_read+0x11/0x20
[  425.593478]  ? __run_timers+0x7da/0xc70
[  425.597455]  ? trace_hardirqs_off_caller+0x310/0x310
[  425.602562]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  425.606836]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  425.611084]  __run_timers+0x7e5/0xc70
[  425.614897]  ? timer_fixup_init+0x70/0x70
[  425.619069]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  425.624102]  ? zap_class+0x640/0x640
[  425.627821]  ? print_usage_bug+0xc0/0xc0
[  425.631887]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  425.637082]  ? find_held_lock+0x36/0x1c0
[  425.641144]  ? zap_class+0x640/0x640
[  425.644860]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.650404]  ? check_preemption_disabled+0x48/0x280
[  425.655430]  ? __lock_is_held+0xb5/0x140
[  425.659484]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.665021]  ? check_preemption_disabled+0x48/0x280
[  425.670195]  run_timer_softirq+0x52/0xb0
[  425.674249]  ? rcu_read_lock_sched_held+0x14f/0x180
[  425.679258]  __do_softirq+0x308/0xb7e
[  425.683071]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  425.687573]  ? lock_downgrade+0x900/0x900
[  425.691726]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  425.696850]  ? pvclock_read_flags+0x160/0x160
[  425.701348]  ? lapic_next_event+0x5a/0x90
[  425.705512]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.711104]  ? kvm_clock_read+0x18/0x30
[  425.715074]  ? kvm_sched_clock_read+0x9/0x20
[  425.719481]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.725040]  ? check_preemption_disabled+0x48/0x280
[  425.730064]  irq_exit+0x17f/0x1c0
[  425.733513]  smp_apic_timer_interrupt+0x1cb/0x760
[  425.738354]  ? smp_call_function_single_interrupt+0x159/0x650
[  425.744232]  ? smp_call_function_single_interrupt+0x650/0x650
[  425.750110]  ? interrupt_entry+0xb5/0xc0
[  425.754170]  ? trace_hardirqs_off_caller+0xbb/0x310
[  425.759197]  ? trace_hardirqs_off_caller+0xbb/0x310
[  425.764210]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.769062]  ? trace_hardirqs_on_caller+0x310/0x310
[  425.774072]  ? trace_hardirqs_on_caller+0x310/0x310
[  425.779085]  ? task_prio+0x50/0x50
[  425.782650]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.788188]  ? check_preemption_disabled+0x48/0x280
[  425.793204]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.798045]  apic_timer_interrupt+0xf/0x20
[  425.802735]  </IRQ>
[  425.804997] RIP: 0010:dump_stack+0x358/0x39d
[  425.809429] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  425.828359] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  425.836078] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  425.843364] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  425.850634] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  425.857904] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  425.865171] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  425.872456]  ? dump_stack+0x34f/0x39d
[  425.876273]  ? dump_stack_print_info.cold.1+0x20/0x20
[  425.881465]  ? mark_held_locks+0x130/0x130
[  425.885694]  ? mark_held_locks+0x130/0x130
[  425.889925]  dump_header+0x27b/0xf72
[  425.893671]  ? pagefault_out_of_memory+0x197/0x197
[  425.898615]  ? __lock_acquire+0x62f/0x4c20
[  425.902862]  ? percpu_ref_get_many+0x240/0x240
[  425.907441]  ? print_usage_bug+0xc0/0xc0
[  425.911503]  ? zap_class+0x640/0x640
[  425.915252]  ? print_usage_bug+0xc0/0xc0
[  425.919322]  ? print_usage_bug+0xc0/0xc0
[  425.923378]  ? zap_class+0x640/0x640
[  425.927091]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.932628]  ? find_held_lock+0x36/0x1c0
[  425.936695]  ? mark_held_locks+0xc7/0x130
[  425.940843]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  425.945941]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  425.951041]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  425.955646]  ? trace_hardirqs_on+0xbd/0x310
[  425.959992]  ? kasan_check_read+0x11/0x20
[  425.964146]  ? ___ratelimit+0x3b4/0x672
[  425.968147]  ? trace_hardirqs_off_caller+0x310/0x310
[  425.973243]  ? trace_hardirqs_on+0x310/0x310
[  425.977645]  ? lock_downgrade+0x900/0x900
[  425.981802]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  425.986905]  ? ___ratelimit+0x3b9/0x672
[  425.990901]  ? idr_get_free+0xf70/0xf70
[  425.994911]  ? find_held_lock+0x36/0x1c0
[  425.998973]  oom_kill_process.cold.27+0x10/0x903
[  426.003720]  ? zap_class+0x640/0x640
[  426.007429]  ? check_preemption_disabled+0x48/0x280
[  426.012441]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  426.017371]  ? kasan_check_read+0x11/0x20
[  426.021512]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.026789]  ? oom_evaluate_task+0x540/0x540
[  426.031198]  ? find_held_lock+0x36/0x1c0
[  426.035261]  ? out_of_memory+0x974/0x1430
[  426.039403]  ? lock_downgrade+0x900/0x900
[  426.043545]  ? check_preemption_disabled+0x48/0x280
[  426.048562]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  426.053483]  ? kasan_check_read+0x11/0x20
[  426.057620]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.062920]  ? rcu_softirq_qs+0x20/0x20
[  426.066905]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.072445]  ? oom_evaluate_task+0x302/0x540
[  426.076863]  out_of_memory+0xa84/0x1430
[  426.080839]  ? oom_killer_disable+0x3a0/0x3a0
[  426.085358]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  426.090291]  ? __ww_mutex_check_waiters+0x160/0x160
[  426.095312]  __alloc_pages_slowpath+0x2354/0x2e10
[  426.100183]  ? warn_alloc+0x120/0x120
[  426.103976]  ? mark_held_locks+0x130/0x130
[  426.108206]  ? find_get_entry+0xaae/0x1120
[  426.112463]  ? filemap_map_pages+0x1a20/0x1a20
[  426.117107]  ? zap_class+0x640/0x640
[  426.120822]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.126354]  ? check_preemption_disabled+0x48/0x280
[  426.131379]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.136929]  ? should_fail+0x22d/0xd01
[  426.140842]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  426.145939]  ? zap_class+0x640/0x640
[  426.149669]  ? __lock_is_held+0xb5/0x140
[  426.153729]  ? mark_held_locks+0x130/0x130
[  426.157960]  ? lock_release+0xa00/0xa00
[  426.161931]  ? perf_trace_sched_process_exec+0x860/0x860
[  426.167377]  ? xa_load+0x2ba/0x460
[  426.170932]  ? lock_downgrade+0x900/0x900
[  426.175079]  ? __might_sleep+0x95/0x190
[  426.179054]  __alloc_pages_nodemask+0xa80/0xde0
[  426.183721]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  426.188731]  ? __page_cache_alloc+0x191/0x5c0
[  426.193226]  ? xa_load+0x2e1/0x460
[  426.196760]  ? xa_clear_mark+0x40/0x40
[  426.200650]  ? zap_class+0x640/0x640
[  426.204370]  ? zap_class+0x640/0x640
[  426.208086]  ? zap_class+0x640/0x640
[  426.211801]  ? __do_page_cache_readahead+0x663/0x810
[  426.216909]  ? find_held_lock+0x36/0x1c0
[  426.220976]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  426.226527]  alloc_pages_current+0x173/0x350
[  426.230940]  __page_cache_alloc+0x38c/0x5c0
[  426.235254]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  426.240209]  ? kasan_check_read+0x11/0x20
[  426.244352]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.249630]  ? generic_perform_write+0x6a0/0x6a0
[  426.254396]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.259959]  ? check_preemption_disabled+0x48/0x280
[  426.264979]  filemap_fault+0x1595/0x25f0
[  426.269076]  ? __lock_page_or_retry+0xa00/0xa00
[  426.273751]  ? mark_held_locks+0x130/0x130
[  426.278013]  ? filemap_map_pages+0xd6b/0x1a20
[  426.282516]  ? lock_downgrade+0x900/0x900
[  426.286677]  ? check_preemption_disabled+0x48/0x280
[  426.291699]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  426.296629]  ? kasan_check_read+0x11/0x20
[  426.300811]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.306105]  ? rcu_softirq_qs+0x20/0x20
[  426.310129]  ? filemap_map_pages+0xd92/0x1a20
[  426.314641]  ? find_get_entries_tag+0x1400/0x1400
[  426.319503]  ? debug_object_destroy+0x2b0/0x2b0
[  426.324176]  ? lock_pi_update_atomic+0x150/0x150
[  426.328954]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.334504]  ? lock_acquire+0x1ed/0x520
[  426.338474]  ? ext4_filemap_fault+0x7a/0xad
[  426.342804]  ? lock_release+0xa00/0xa00
[  426.346772]  ? perf_trace_sched_process_exec+0x860/0x860
[  426.352228]  ? print_usage_bug+0xc0/0xc0
[  426.356294]  ? print_usage_bug+0xc0/0xc0
[  426.360382]  ? down_read+0x8d/0x120
[  426.364013]  ? ext4_filemap_fault+0x7a/0xad
[  426.368339]  ? __down_interruptible+0x700/0x700
[  426.373062]  ext4_filemap_fault+0x82/0xad
[  426.377214]  __do_fault+0x100/0x6b0
[  426.380847]  ? pmd_devmap_trans_unstable+0x220/0x220
[  426.385951]  ? mark_held_locks+0x130/0x130
[  426.390188]  ? mark_held_locks+0x130/0x130
[  426.394420]  ? debug_smp_processor_id+0x1c/0x20
[  426.399089]  ? perf_trace_lock+0x14d/0x7a0
[  426.403323]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.408871]  __handle_mm_fault+0x3ea0/0x5be0
[  426.413284]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  426.418122]  ? lock_is_held_type+0x210/0x210
[  426.422530]  ? ksys_dup3+0x680/0x680
[  426.426252]  ? zap_class+0x640/0x640
[  426.429977]  ? zap_class+0x640/0x640
[  426.433696]  ? __x64_sys_futex+0x53e/0x6a0
[  426.437936]  ? find_held_lock+0x36/0x1c0
[  426.442020]  ? handle_mm_fault+0x42a/0xc70
[  426.446257]  ? lock_downgrade+0x900/0x900
[  426.450445]  ? check_preemption_disabled+0x48/0x280
[  426.455457]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  426.460396]  ? kasan_check_read+0x11/0x20
[  426.464536]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.469822]  ? rcu_softirq_qs+0x20/0x20
[  426.473792]  ? trace_hardirqs_off_caller+0x310/0x310
[  426.478889]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.484469]  ? check_preemption_disabled+0x48/0x280
[  426.489483]  handle_mm_fault+0x54f/0xc70
[  426.493540]  ? __handle_mm_fault+0x5be0/0x5be0
[  426.498122]  ? find_vma+0x34/0x190
[  426.501671]  __do_page_fault+0x5e8/0xe60
[  426.505751]  ? trace_hardirqs_off+0xb8/0x310
[  426.510166]  do_page_fault+0xf2/0x7e0
[  426.513959]  ? vmalloc_sync_all+0x30/0x30
[  426.518103]  ? error_entry+0x70/0xd0
[  426.521827]  ? trace_hardirqs_off_caller+0xbb/0x310
[  426.526873]  ? trace_hardirqs_on_caller+0xc0/0x310
[  426.531797]  ? syscall_return_slowpath+0x5e0/0x5e0
[  426.536716]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  426.541577]  ? trace_hardirqs_on_caller+0x310/0x310
[  426.546585]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  426.552045]  ? prepare_exit_to_usermode+0x291/0x3b0
[  426.557067]  ? page_fault+0x8/0x30
[  426.560635]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  426.565488]  ? page_fault+0x8/0x30
[  426.569029]  page_fault+0x1e/0x30
[  426.572483] RIP: 0033:0x40f9c0
[  426.575715] Code: Bad RIP value.
[  426.579108] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  426.584469] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  426.591737] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  426.599014] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  426.606297] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  426.613568] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  426.620865] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  426.620870] warn_alloc_show_mem: 1 callbacks suppressed
[  426.620878] Mem-Info:
[  426.627633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  426.633002] active_anon:54833 inactive_anon:712 isolated_anon:0
[  426.633002]  active_file:11 inactive_file:12 isolated_file:0
[  426.633002]  unevictable:0 dirty:0 writeback:0 unstable:0
[  426.633002]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  426.633002]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  426.633002]  free:13768 free_pcp:742 free_cma:0
[  426.635379] Call Trace:
[  426.644760] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  426.677608]  dump_stack+0x244/0x39d
[  426.680192] 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
[  426.707807]  ? dump_stack_print_info.cold.1+0x20/0x20
[  426.711405] lowmem_reserve[]: 0 2818 6321 6321
[  426.737529]  warn_alloc.cold.116+0xb7/0x1bd
[  426.742700] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  426.747293]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  426.751608] lowmem_reserve[]: 0 0 3503 3503
[  426.779357]  ? lock_downgrade+0x900/0x900
[  426.784185] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  426.788533]  ? trace_hardirqs_off+0xb8/0x310
[  426.792626] lowmem_reserve[]: 0 0 0 0
[  426.822087]  ? trace_hardirqs_off+0xb8/0x310
[  426.826487] 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
[  426.830319]  __alloc_pages_slowpath+0x26e8/0x2e10
[  426.834697] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  426.848226]  ? warn_alloc+0x120/0x120
[  426.853044] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  426.868769]  ? print_usage_bug+0xc0/0xc0
[  426.872582] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  426.887914]  ? warn_alloc+0x120/0x120
[  426.891949] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  426.891958] 782 total pagecache pages
[  426.900815]  ? warn_alloc+0x120/0x120
[  426.904595] 0 pages in swap cache
[  426.913168]  ? print_usage_bug+0xc0/0xc0
[  426.916947] Swap cache stats: add 0, delete 0, find 0/0
[  426.920761]  ? print_usage_bug+0xc0/0xc0
[  426.924200] Free swap  = 0kB
[  426.928252]  ? __lock_acquire+0x62f/0x4c20
[  426.933587] Total swap = 0kB
[  426.933595] 1965979 pages RAM
[  426.937647]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.940648] 0 pages HighMem/MovableOnly
[  426.940656] 342853 pages reserved
[  426.944915]  ? should_fail+0x22d/0xd01
[  426.947905] 0 pages cma reserved
[  426.947989] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  426.951041]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  426.951058]  ? __lock_acquire+0x62f/0x4c20
[  426.951074]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  426.956655] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  426.960567]  ? __lock_acquire+0x62f/0x4c20
[  426.964017] syz-fuzzer cpuset=/ mems_allowed=0
[  426.967894]  ? should_fail+0x22d/0xd01
[  427.014960]  ? find_held_lock+0x36/0x1c0
[  427.019030]  ? mark_held_locks+0x130/0x130
[  427.023304]  ? mark_held_locks+0x130/0x130
[  427.027560]  ? zap_class+0x640/0x640
[  427.031287]  ? zap_class+0x640/0x640
[  427.035001]  ? print_usage_bug+0xc0/0xc0
[  427.039082]  ? do_raw_spin_unlock+0xa7/0x330
[  427.043490]  ? zap_class+0x640/0x640
[  427.047205]  ? print_usage_bug+0xc0/0xc0
[  427.051262]  ? wq_watchdog_touch+0x9c/0xfe
[  427.055599]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.061150]  ? check_preemption_disabled+0x48/0x280
[  427.066171]  ? __lock_is_held+0xb5/0x140
[  427.070233]  __alloc_pages_nodemask+0xa80/0xde0
[  427.074925]  ? zap_class+0x640/0x640
[  427.078655]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  427.083677]  ? find_held_lock+0x36/0x1c0
[  427.087740]  ? ____cache_alloc_node+0x1c7/0x1e0
[  427.092415]  ? lock_downgrade+0x900/0x900
[  427.096567]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.102105]  cache_grow_begin+0xa5/0x8c0
[  427.106159]  ? do_raw_spin_unlock+0xa7/0x330
[  427.110565]  fallback_alloc+0x204/0x2e0
[  427.114550]  ____cache_alloc_node+0x1c7/0x1e0
[  427.119105]  kmem_cache_alloc_node+0xe3/0x730
[  427.123614]  ? ipv6_get_ifaddr+0x42e/0x620
[  427.127859]  __alloc_skb+0x119/0x770
[  427.131566]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  427.136836]  ? netdev_alloc_frag+0x1f0/0x1f0
[  427.141241]  ? lock_downgrade+0x900/0x900
[  427.145402]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.150929]  ? refcount_sub_and_test_checked+0x203/0x310
[  427.156375]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  427.161831]  ? addrconf_rs_timer+0x690/0x690
[  427.166246]  ndisc_alloc_skb+0x144/0x340
[  427.170322]  ndisc_send_rs+0x331/0x6e0
[  427.174205]  addrconf_rs_timer+0x314/0x690
[  427.178434]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.182706]  call_timer_fn+0x272/0x920
[  427.186600]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.190839]  ? process_timeout+0x40/0x40
[  427.194901]  ? __run_timers+0x7da/0xc70
[  427.198873]  ? _raw_spin_unlock_irq+0x27/0x80
[  427.203366]  ? _raw_spin_unlock_irq+0x27/0x80
[  427.207859]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.212117]  ? lockdep_hardirqs_on+0x296/0x5b0
[  427.216698]  ? trace_hardirqs_on+0xbd/0x310
[  427.221020]  ? kasan_check_read+0x11/0x20
[  427.225160]  ? __run_timers+0x7da/0xc70
[  427.229132]  ? trace_hardirqs_off_caller+0x310/0x310
[  427.234231]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.238551]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.242778]  __run_timers+0x7e5/0xc70
[  427.246583]  ? timer_fixup_init+0x70/0x70
[  427.250740]  ? _raw_spin_unlock_irq+0x27/0x80
[  427.255230]  ? _raw_spin_unlock_irq+0x27/0x80
[  427.259757]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  427.264380]  ? trace_hardirqs_on+0xbd/0x310
[  427.268717]  ? kasan_check_read+0x11/0x20
[  427.272867]  ? finish_task_switch+0x1f4/0x910
[  427.277364]  ? trace_hardirqs_off_caller+0x310/0x310
[  427.282469]  ? compat_start_thread+0x80/0x80
[  427.286900]  ? pvclock_read_flags+0x160/0x160
[  427.291389]  ? __switch_to_asm+0x34/0x70
[  427.295446]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.300986]  ? check_preemption_disabled+0x48/0x280
[  427.306048]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  427.311583]  ? rcu_pm_notify+0xc0/0xc0
[  427.315468]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.321017]  ? check_preemption_disabled+0x48/0x280
[  427.326043]  run_timer_softirq+0x52/0xb0
[  427.330133]  ? rcu_read_lock_sched_held+0x14f/0x180
[  427.335143]  __do_softirq+0x308/0xb7e
[  427.338939]  ? retint_kernel+0x2d/0x2d
[  427.342822]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  427.347916]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  427.353389]  ? trace_hardirqs_on+0x310/0x310
[  427.357806]  ? schedule+0x108/0x460
[  427.361443]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  427.366201]  ? trace_hardirqs_off+0xb8/0x310
[  427.370605]  ? smpboot_thread_fn+0x68b/0xa00
[  427.375019]  ? trace_hardirqs_on+0x310/0x310
[  427.379427]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.384958]  ? check_preemption_disabled+0x48/0x280
[  427.389971]  ? takeover_tasklets+0xa90/0xa90
[  427.394386]  run_ksoftirqd+0x5e/0x100
[  427.398193]  smpboot_thread_fn+0x68b/0xa00
[  427.402463]  ? sort_range+0x30/0x30
[  427.406094]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  427.411196]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.416742]  ? __kthread_parkme+0xfb/0x1a0
[  427.421035]  ? sort_range+0x30/0x30
[  427.424663]  kthread+0x35a/0x440
[  427.428032]  ? kthread_stop+0x900/0x900
[  427.432066]  ret_from_fork+0x3a/0x50
[  427.435814] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  427.435885] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  427.442739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  427.442744] Call Trace:
[  427.442750]  <IRQ>
[  427.442765]  dump_stack+0x244/0x39d
[  427.442789]  ? dump_stack_print_info.cold.1+0x20/0x20
[  427.449324] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  427.458617]  warn_alloc.cold.116+0xb7/0x1bd
[  427.461175] ksoftirqd/0 cpuset=/ mems_allowed=0
[  427.463344]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  427.496227]  ? lock_downgrade+0x900/0x900
[  427.500396]  ? trace_hardirqs_off+0xb8/0x310
[  427.504827]  ? trace_hardirqs_off+0xb8/0x310
[  427.509256]  __alloc_pages_slowpath+0x26e8/0x2e10
[  427.514146]  ? warn_alloc+0x120/0x120
[  427.517949]  ? print_usage_bug+0xc0/0xc0
[  427.522018]  ? warn_alloc+0x120/0x120
[  427.525823]  ? warn_alloc+0x120/0x120
[  427.529623]  ? print_usage_bug+0xc0/0xc0
[  427.533684]  ? print_usage_bug+0xc0/0xc0
[  427.537799]  ? __lock_acquire+0x62f/0x4c20
[  427.542043]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.547609]  ? should_fail+0x22d/0xd01
[  427.551493]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  427.556633]  ? __lock_acquire+0x62f/0x4c20
[  427.560865]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  427.565959]  ? __lock_acquire+0x62f/0x4c20
[  427.570189]  ? should_fail+0x22d/0xd01
[  427.574080]  ? mark_held_locks+0x130/0x130
[  427.578312]  ? mark_held_locks+0x130/0x130
[  427.582539]  ? zap_class+0x640/0x640
[  427.586283]  ? zap_class+0x640/0x640
[  427.590029]  ? print_usage_bug+0xc0/0xc0
[  427.594107]  ? wq_watchdog_touch+0x9c/0xfe
[  427.598340]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.603874]  ? check_preemption_disabled+0x48/0x280
[  427.608890]  ? __lock_is_held+0xb5/0x140
[  427.612963]  __alloc_pages_nodemask+0xa80/0xde0
[  427.617639]  ? zap_class+0x640/0x640
[  427.621358]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  427.626413]  ? find_held_lock+0x36/0x1c0
[  427.630480]  ? ____cache_alloc_node+0x1c7/0x1e0
[  427.635161]  ? lock_downgrade+0x900/0x900
[  427.639308]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.644876]  cache_grow_begin+0xa5/0x8c0
[  427.648961]  ? do_raw_spin_unlock+0xa7/0x330
[  427.653385]  fallback_alloc+0x204/0x2e0
[  427.657394]  ____cache_alloc_node+0x1c7/0x1e0
[  427.661938]  kmem_cache_alloc_node+0xe3/0x730
[  427.666431]  ? ipv6_get_ifaddr+0x42e/0x620
[  427.670822]  __alloc_skb+0x119/0x770
[  427.674532]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  427.679832]  ? netdev_alloc_frag+0x1f0/0x1f0
[  427.684239]  ? lock_downgrade+0x900/0x900
[  427.688403]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.693935]  ? refcount_sub_and_test_checked+0x203/0x310
[  427.699385]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  427.704831]  ? addrconf_rs_timer+0x690/0x690
[  427.709261]  ndisc_alloc_skb+0x144/0x340
[  427.713364]  ndisc_send_rs+0x331/0x6e0
[  427.717256]  addrconf_rs_timer+0x314/0x690
[  427.721494]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.725735]  call_timer_fn+0x272/0x920
[  427.729615]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.733860]  ? process_timeout+0x40/0x40
[  427.737924]  ? mark_held_locks+0xc7/0x130
[  427.742089]  ? _raw_spin_unlock_irq+0x27/0x80
[  427.746580]  ? _raw_spin_unlock_irq+0x27/0x80
[  427.751072]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.755306]  ? lockdep_hardirqs_on+0x296/0x5b0
[  427.759890]  ? trace_hardirqs_on+0xbd/0x310
[  427.764211]  ? kasan_check_read+0x11/0x20
[  427.768361]  ? __run_timers+0x7da/0xc70
[  427.772337]  ? trace_hardirqs_off_caller+0x310/0x310
[  427.777452]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.781681]  __run_timers+0x7e5/0xc70
[  427.785492]  ? timer_fixup_init+0x70/0x70
[  427.789637]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  427.794663]  ? zap_class+0x640/0x640
[  427.798390]  ? print_usage_bug+0xc0/0xc0
[  427.802466]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  427.807695]  ? find_held_lock+0x36/0x1c0
[  427.811757]  ? zap_class+0x640/0x640
[  427.815499]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.821052]  ? check_preemption_disabled+0x48/0x280
[  427.826087]  ? __lock_is_held+0xb5/0x140
[  427.830146]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.835688]  ? check_preemption_disabled+0x48/0x280
[  427.840742]  run_timer_softirq+0x52/0xb0
[  427.844836]  ? rcu_read_lock_sched_held+0x14f/0x180
[  427.849855]  __do_softirq+0x308/0xb7e
[  427.853668]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  427.858157]  ? lock_downgrade+0x900/0x900
[  427.862317]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  427.867426]  ? pvclock_read_flags+0x160/0x160
[  427.871919]  ? lapic_next_event+0x5a/0x90
[  427.876075]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.881631]  ? kvm_clock_read+0x18/0x30
[  427.885605]  ? kvm_sched_clock_read+0x9/0x20
[  427.890023]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.895577]  ? check_preemption_disabled+0x48/0x280
[  427.900607]  irq_exit+0x17f/0x1c0
[  427.904077]  smp_apic_timer_interrupt+0x1cb/0x760
[  427.908921]  ? smp_call_function_single_interrupt+0x159/0x650
[  427.914819]  ? smp_call_function_single_interrupt+0x650/0x650
[  427.920702]  ? interrupt_entry+0xb5/0xc0
[  427.924811]  ? trace_hardirqs_off_caller+0xbb/0x310
[  427.929840]  ? trace_hardirqs_off_caller+0xbb/0x310
[  427.934863]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.939721]  ? trace_hardirqs_on_caller+0x310/0x310
[  427.944749]  ? trace_hardirqs_on_caller+0x310/0x310
[  427.949789]  ? task_prio+0x50/0x50
[  427.953335]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.958887]  ? check_preemption_disabled+0x48/0x280
[  427.963908]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.968754]  apic_timer_interrupt+0xf/0x20
[  427.972984]  </IRQ>
[  427.975247] RIP: 0010:dump_stack+0x358/0x39d
[  427.979655] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  427.998566] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  428.006284] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  428.013551] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  428.020834] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  428.028120] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  428.035402] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  428.042685]  ? dump_stack+0x34f/0x39d
[  428.046512]  ? dump_stack_print_info.cold.1+0x20/0x20
[  428.051699]  ? mark_held_locks+0x130/0x130
[  428.055943]  ? mark_held_locks+0x130/0x130
[  428.060176]  dump_header+0x27b/0xf72
[  428.063896]  ? pagefault_out_of_memory+0x197/0x197
[  428.068830]  ? __lock_acquire+0x62f/0x4c20
[  428.073073]  ? percpu_ref_get_many+0x240/0x240
[  428.077659]  ? print_usage_bug+0xc0/0xc0
[  428.081738]  ? zap_class+0x640/0x640
[  428.085459]  ? print_usage_bug+0xc0/0xc0
[  428.089515]  ? print_usage_bug+0xc0/0xc0
[  428.093603]  ? zap_class+0x640/0x640
[  428.097317]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.102858]  ? find_held_lock+0x36/0x1c0
[  428.106955]  ? mark_held_locks+0xc7/0x130
[  428.111157]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  428.116263]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  428.121368]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  428.125955]  ? trace_hardirqs_on+0xbd/0x310
[  428.130277]  ? kasan_check_read+0x11/0x20
[  428.134429]  ? ___ratelimit+0x3b4/0x672
[  428.138405]  ? trace_hardirqs_off_caller+0x310/0x310
[  428.143508]  ? trace_hardirqs_on+0x310/0x310
[  428.147964]  ? lock_downgrade+0x900/0x900
[  428.152159]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  428.157262]  ? ___ratelimit+0x3b9/0x672
[  428.161234]  ? idr_get_free+0xf70/0xf70
[  428.165206]  ? find_held_lock+0x36/0x1c0
[  428.169281]  oom_kill_process.cold.27+0x10/0x903
[  428.174054]  ? zap_class+0x640/0x640
[  428.177767]  ? check_preemption_disabled+0x48/0x280
[  428.182811]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  428.187744]  ? kasan_check_read+0x11/0x20
[  428.191889]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.197179]  ? oom_evaluate_task+0x540/0x540
[  428.201618]  ? find_held_lock+0x36/0x1c0
[  428.205700]  ? out_of_memory+0x974/0x1430
[  428.209860]  ? lock_downgrade+0x900/0x900
[  428.214018]  ? check_preemption_disabled+0x48/0x280
[  428.219056]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  428.223999]  ? kasan_check_read+0x11/0x20
[  428.228160]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.233438]  ? rcu_softirq_qs+0x20/0x20
[  428.237443]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.242975]  ? oom_evaluate_task+0x302/0x540
[  428.247394]  out_of_memory+0xa84/0x1430
[  428.251393]  ? oom_killer_disable+0x3a0/0x3a0
[  428.255886]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  428.260831]  ? __ww_mutex_check_waiters+0x160/0x160
[  428.265854]  __alloc_pages_slowpath+0x2354/0x2e10
[  428.270732]  ? warn_alloc+0x120/0x120
[  428.274597]  ? mark_held_locks+0x130/0x130
[  428.278835]  ? find_get_entry+0xaae/0x1120
[  428.283095]  ? filemap_map_pages+0x1a20/0x1a20
[  428.287696]  ? zap_class+0x640/0x640
[  428.291415]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.296954]  ? check_preemption_disabled+0x48/0x280
[  428.301987]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.307546]  ? should_fail+0x22d/0xd01
[  428.311438]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  428.316542]  ? zap_class+0x640/0x640
[  428.320295]  ? __lock_is_held+0xb5/0x140
[  428.324367]  ? mark_held_locks+0x130/0x130
[  428.328622]  ? lock_release+0xa00/0xa00
[  428.332615]  ? perf_trace_sched_process_exec+0x860/0x860
[  428.338066]  ? xa_load+0x2ba/0x460
[  428.341609]  ? lock_downgrade+0x900/0x900
[  428.345761]  ? __might_sleep+0x95/0x190
[  428.349741]  __alloc_pages_nodemask+0xa80/0xde0
[  428.354421]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  428.359484]  ? __page_cache_alloc+0x191/0x5c0
[  428.363979]  ? xa_load+0x2e1/0x460
[  428.367542]  ? xa_clear_mark+0x40/0x40
[  428.371437]  ? zap_class+0x640/0x640
[  428.375158]  ? zap_class+0x640/0x640
[  428.378875]  ? zap_class+0x640/0x640
[  428.382588]  ? __do_page_cache_readahead+0x663/0x810
[  428.387692]  ? find_held_lock+0x36/0x1c0
[  428.391754]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  428.397299]  alloc_pages_current+0x173/0x350
[  428.401712]  __page_cache_alloc+0x38c/0x5c0
[  428.406038]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  428.410975]  ? kasan_check_read+0x11/0x20
[  428.415117]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.420494]  ? generic_perform_write+0x6a0/0x6a0
[  428.425281]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.430819]  ? check_preemption_disabled+0x48/0x280
[  428.435841]  filemap_fault+0x1595/0x25f0
[  428.439915]  ? __lock_page_or_retry+0xa00/0xa00
[  428.444588]  ? mark_held_locks+0x130/0x130
[  428.448833]  ? filemap_map_pages+0xd6b/0x1a20
[  428.453358]  ? lock_downgrade+0x900/0x900
[  428.457506]  ? check_preemption_disabled+0x48/0x280
[  428.462528]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  428.467455]  ? kasan_check_read+0x11/0x20
[  428.471603]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.476879]  ? rcu_softirq_qs+0x20/0x20
[  428.480867]  ? filemap_map_pages+0xd92/0x1a20
[  428.485376]  ? find_get_entries_tag+0x1400/0x1400
[  428.490223]  ? debug_object_destroy+0x2b0/0x2b0
[  428.494897]  ? lock_pi_update_atomic+0x150/0x150
[  428.499653]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.505202]  ? lock_acquire+0x1ed/0x520
[  428.509179]  ? ext4_filemap_fault+0x7a/0xad
[  428.513505]  ? lock_release+0xa00/0xa00
[  428.517495]  ? perf_trace_sched_process_exec+0x860/0x860
[  428.522959]  ? print_usage_bug+0xc0/0xc0
[  428.527040]  ? print_usage_bug+0xc0/0xc0
[  428.531145]  ? down_read+0x8d/0x120
[  428.534770]  ? ext4_filemap_fault+0x7a/0xad
[  428.539096]  ? __down_interruptible+0x700/0x700
[  428.543811]  ext4_filemap_fault+0x82/0xad
[  428.547983]  __do_fault+0x100/0x6b0
[  428.551621]  ? pmd_devmap_trans_unstable+0x220/0x220
[  428.556725]  ? mark_held_locks+0x130/0x130
[  428.560971]  ? mark_held_locks+0x130/0x130
[  428.565217]  ? debug_smp_processor_id+0x1c/0x20
[  428.569882]  ? perf_trace_lock+0x14d/0x7a0
[  428.574119]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.579677]  __handle_mm_fault+0x3ea0/0x5be0
[  428.584103]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  428.588942]  ? lock_is_held_type+0x210/0x210
[  428.593355]  ? ksys_dup3+0x680/0x680
[  428.597083]  ? zap_class+0x640/0x640
[  428.600818]  ? zap_class+0x640/0x640
[  428.604537]  ? __x64_sys_futex+0x53e/0x6a0
[  428.608796]  ? find_held_lock+0x36/0x1c0
[  428.612866]  ? handle_mm_fault+0x42a/0xc70
[  428.617102]  ? lock_downgrade+0x900/0x900
[  428.621252]  ? check_preemption_disabled+0x48/0x280
[  428.626275]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  428.631204]  ? kasan_check_read+0x11/0x20
[  428.635357]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.640645]  ? rcu_softirq_qs+0x20/0x20
[  428.644630]  ? trace_hardirqs_off_caller+0x310/0x310
[  428.649750]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.655296]  ? check_preemption_disabled+0x48/0x280
[  428.660346]  handle_mm_fault+0x54f/0xc70
[  428.664445]  ? __handle_mm_fault+0x5be0/0x5be0
[  428.669043]  ? find_vma+0x34/0x190
[  428.672585]  __do_page_fault+0x5e8/0xe60
[  428.676646]  ? trace_hardirqs_off+0xb8/0x310
[  428.681065]  do_page_fault+0xf2/0x7e0
[  428.684862]  ? vmalloc_sync_all+0x30/0x30
[  428.689015]  ? error_entry+0x70/0xd0
[  428.692723]  ? trace_hardirqs_off_caller+0xbb/0x310
[  428.697743]  ? trace_hardirqs_on_caller+0xc0/0x310
[  428.702670]  ? syscall_return_slowpath+0x5e0/0x5e0
[  428.707601]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  428.713106]  ? trace_hardirqs_on_caller+0x310/0x310
[  428.718119]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  428.723574]  ? prepare_exit_to_usermode+0x291/0x3b0
[  428.728587]  ? page_fault+0x8/0x30
[  428.732163]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  428.737017]  ? page_fault+0x8/0x30
[  428.740567]  page_fault+0x1e/0x30
[  428.744049] RIP: 0033:0x40f9c0
[  428.747270] Code: Bad RIP value.
[  428.750629] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  428.755998] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  428.763270] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  428.770578] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  428.777847] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  428.785109] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  428.792390] warn_alloc_show_mem: 1 callbacks suppressed
[  428.792401] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  428.792402] Mem-Info:
[  428.792431] active_anon:54833 inactive_anon:712 isolated_anon:0
[  428.792431]  active_file:11 inactive_file:12 isolated_file:0
[  428.792431]  unevictable:0 dirty:0 writeback:0 unstable:0
[  428.792431]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  428.792431]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  428.792431]  free:13768 free_pcp:742 free_cma:0
[  428.797766] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  428.797774] Call Trace:
[  428.805046] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  428.807448]  dump_stack+0x244/0x39d
[  428.807460]  ? dump_stack_print_info.cold.1+0x20/0x20
[  428.807475]  warn_alloc.cold.116+0xb7/0x1bd
[  428.807485]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  428.807495]  ? lock_downgrade+0x900/0x900
[  428.807507]  ? trace_hardirqs_off+0xb8/0x310
[  428.807518]  ? trace_hardirqs_off+0xb8/0x310
[  428.807530]  __alloc_pages_slowpath+0x26e8/0x2e10
[  428.807552]  ? warn_alloc+0x120/0x120
[  428.807561]  ? print_usage_bug+0xc0/0xc0
[  428.807570]  ? warn_alloc+0x120/0x120
[  428.807580]  ? warn_alloc+0x120/0x120
[  428.807588]  ? print_usage_bug+0xc0/0xc0
[  428.807599]  ? print_usage_bug+0xc0/0xc0
[  428.807608]  ? __lock_acquire+0x62f/0x4c20
[  428.807634]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.807643]  ? should_fail+0x22d/0xd01
[  428.807653]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  428.807661]  ? __lock_acquire+0x62f/0x4c20
[  428.807671]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  428.807678]  ? __lock_acquire+0x62f/0x4c20
[  428.807699]  ? should_fail+0x22d/0xd01
[  428.807706]  ? find_held_lock+0x36/0x1c0
[  428.807733]  ? mark_held_locks+0x130/0x130
[  428.807758]  ? mark_held_locks+0x130/0x130
[  428.807765]  ? zap_class+0x640/0x640
[  428.807772]  ? zap_class+0x640/0x640
[  428.807783]  ? print_usage_bug+0xc0/0xc0
[  428.807794]  ? do_raw_spin_unlock+0xa7/0x330
[  428.807852]  ? zap_class+0x640/0x640
[  428.840712] 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
[  428.850072]  ? print_usage_bug+0xc0/0xc0
[  428.852627] lowmem_reserve[]: 0 2818 6321 6321
[  428.880234]  ? wq_watchdog_touch+0x9c/0xfe
[  428.883844] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  428.889030]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.893319] lowmem_reserve[]: 0 0 3503 3503
[  428.898152]  ? check_preemption_disabled+0x48/0x280
[  428.902268] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  428.906676]  ? __lock_is_held+0xb5/0x140
[  428.911059] lowmem_reserve[]: 0 0 0 0
[  428.915906]  __alloc_pages_nodemask+0xa80/0xde0
[  428.919676] 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
[  428.923761]  ? zap_class+0x640/0x640
[  428.927549] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  428.931346]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  428.935381] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  428.939440]  ? find_held_lock+0x36/0x1c0
[  428.943655] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  428.949185]  ? ____cache_alloc_node+0x1c7/0x1e0
[  428.953049] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  428.958136]  ? lock_downgrade+0x900/0x900
[  428.962342] 782 total pagecache pages
[  428.967485]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.971754] 0 pages in swap cache
[  428.975623]  cache_grow_begin+0xa5/0x8c0
[  428.979676] Swap cache stats: add 0, delete 0, find 0/0
[  428.983923]  ? do_raw_spin_unlock+0xa7/0x330
[  428.988130] Free swap  = 0kB
[  428.991835]  fallback_alloc+0x204/0x2e0
[  428.995528] Total swap = 0kB
[  428.995537] 1965979 pages RAM
[  428.999619]  ____cache_alloc_node+0x1c7/0x1e0
[  429.004069] 0 pages HighMem/MovableOnly
[  429.007824]  kmem_cache_alloc_node+0xe3/0x730
[  429.033899] 342853 pages reserved
[  429.033906] 0 pages cma reserved
[  429.037960]  ? ipv6_get_ifaddr+0x42e/0x620
[  429.042597] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  429.046765]  __alloc_skb+0x119/0x770
[  429.074595] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  429.080045]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.084361] syz-fuzzer cpuset=/ mems_allowed=0
[  429.089366]  ? netdev_alloc_frag+0x1f0/0x1f0
[  429.312680]  ? lock_downgrade+0x900/0x900
[  429.316866]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.322400]  ? refcount_sub_and_test_checked+0x203/0x310
[  429.327955]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  429.333448]  ? addrconf_rs_timer+0x690/0x690
[  429.337862]  ndisc_alloc_skb+0x144/0x340
[  429.341930]  ndisc_send_rs+0x331/0x6e0
[  429.345820]  addrconf_rs_timer+0x314/0x690
[  429.350081]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.354327]  call_timer_fn+0x272/0x920
[  429.358228]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.362475]  ? process_timeout+0x40/0x40
[  429.366552]  ? __run_timers+0x7da/0xc70
[  429.370525]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.375022]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.379516]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.383754]  ? lockdep_hardirqs_on+0x296/0x5b0
[  429.388347]  ? trace_hardirqs_on+0xbd/0x310
[  429.392699]  ? kasan_check_read+0x11/0x20
[  429.396846]  ? __run_timers+0x7da/0xc70
[  429.400819]  ? trace_hardirqs_off_caller+0x310/0x310
[  429.405919]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.410173]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.414405]  __run_timers+0x7e5/0xc70
[  429.418244]  ? timer_fixup_init+0x70/0x70
[  429.422387]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.426910]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.431400]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  429.435974]  ? trace_hardirqs_on+0xbd/0x310
[  429.440351]  ? kasan_check_read+0x11/0x20
[  429.444513]  ? finish_task_switch+0x1f4/0x910
[  429.449003]  ? trace_hardirqs_off_caller+0x310/0x310
[  429.454107]  ? compat_start_thread+0x80/0x80
[  429.458526]  ? pvclock_read_flags+0x160/0x160
[  429.463025]  ? __switch_to_asm+0x34/0x70
[  429.467082]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.472614]  ? check_preemption_disabled+0x48/0x280
[  429.477652]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  429.483203]  ? rcu_pm_notify+0xc0/0xc0
[  429.487087]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.492617]  ? check_preemption_disabled+0x48/0x280
[  429.497647]  run_timer_softirq+0x52/0xb0
[  429.501703]  ? rcu_read_lock_sched_held+0x14f/0x180
[  429.506714]  __do_softirq+0x308/0xb7e
[  429.510515]  ? retint_kernel+0x2d/0x2d
[  429.514414]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  429.519506]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  429.524960]  ? trace_hardirqs_on+0x310/0x310
[  429.529381]  ? schedule+0x108/0x460
[  429.533001]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  429.537782]  ? trace_hardirqs_off+0xb8/0x310
[  429.542187]  ? smpboot_thread_fn+0x68b/0xa00
[  429.546600]  ? trace_hardirqs_on+0x310/0x310
[  429.551043]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.556596]  ? check_preemption_disabled+0x48/0x280
[  429.561624]  ? takeover_tasklets+0xa90/0xa90
[  429.566048]  run_ksoftirqd+0x5e/0x100
[  429.569857]  smpboot_thread_fn+0x68b/0xa00
[  429.574130]  ? sort_range+0x30/0x30
[  429.577753]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  429.582854]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.588389]  ? __kthread_parkme+0xfb/0x1a0
[  429.592622]  ? sort_range+0x30/0x30
[  429.596242]  kthread+0x35a/0x440
[  429.599603]  ? kthread_stop+0x900/0x900
[  429.603570]  ret_from_fork+0x3a/0x50
[  429.607347] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  429.607416] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  429.614268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  429.614273] Call Trace:
[  429.614279]  <IRQ>
[  429.614296]  dump_stack+0x244/0x39d
[  429.614318]  ? dump_stack_print_info.cold.1+0x20/0x20
[  429.620905] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  429.630153]  warn_alloc.cold.116+0xb7/0x1bd
[  429.632706] ksoftirqd/0 cpuset=/ mems_allowed=0
[  429.634858]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  429.667931]  ? lock_downgrade+0x900/0x900
[  429.672088]  ? trace_hardirqs_off+0xb8/0x310
[  429.676501]  ? trace_hardirqs_off+0xb8/0x310
[  429.680911]  __alloc_pages_slowpath+0x26e8/0x2e10
[  429.685810]  ? warn_alloc+0x120/0x120
[  429.689608]  ? print_usage_bug+0xc0/0xc0
[  429.693685]  ? warn_alloc+0x120/0x120
[  429.697493]  ? warn_alloc+0x120/0x120
[  429.701317]  ? print_usage_bug+0xc0/0xc0
[  429.705407]  ? kvm_clock_read+0x18/0x30
[  429.709379]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  429.714395]  ? print_usage_bug+0xc0/0xc0
[  429.718455]  ? __lock_acquire+0x62f/0x4c20
[  429.722690]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.728240]  ? should_fail+0x22d/0xd01
[  429.732141]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.737422]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  429.742525]  ? __lock_acquire+0x62f/0x4c20
[  429.746774]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  429.751885]  ? __lock_acquire+0x62f/0x4c20
[  429.756134]  ? should_fail+0x22d/0xd01
[  429.760020]  ? rcu_irq_exit+0x1a2/0x390
[  429.764006]  ? mark_held_locks+0x130/0x130
[  429.768279]  ? mark_held_locks+0x130/0x130
[  429.772526]  ? mark_held_locks+0xc7/0x130
[  429.776704]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  429.781718]  ? zap_class+0x640/0x640
[  429.785429]  ? print_usage_bug+0xc0/0xc0
[  429.789501]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.795040]  ? check_preemption_disabled+0x48/0x280
[  429.800621]  ? __lock_is_held+0xb5/0x140
[  429.804680]  __alloc_pages_nodemask+0xa80/0xde0
[  429.809353]  ? zap_class+0x640/0x640
[  429.813064]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  429.818115]  ? find_held_lock+0x36/0x1c0
[  429.822183]  ? ____cache_alloc_node+0x1c7/0x1e0
[  429.826852]  ? lock_downgrade+0x900/0x900
[  429.831003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.836552]  cache_grow_begin+0xa5/0x8c0
[  429.840611]  ? do_raw_spin_unlock+0xa7/0x330
[  429.845034]  fallback_alloc+0x204/0x2e0
[  429.849026]  ____cache_alloc_node+0x1c7/0x1e0
[  429.853558]  kmem_cache_alloc_node+0xe3/0x730
[  429.858078]  ? ipv6_get_ifaddr+0x42e/0x620
[  429.862366]  __alloc_skb+0x119/0x770
[  429.866077]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.871363]  ? netdev_alloc_frag+0x1f0/0x1f0
[  429.875774]  ? lock_downgrade+0x900/0x900
[  429.879938]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.885480]  ? refcount_sub_and_test_checked+0x203/0x310
[  429.890939]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  429.896390]  ? addrconf_rs_timer+0x690/0x690
[  429.900813]  ndisc_alloc_skb+0x144/0x340
[  429.904877]  ndisc_send_rs+0x331/0x6e0
[  429.908769]  addrconf_rs_timer+0x314/0x690
[  429.913019]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.917263]  call_timer_fn+0x272/0x920
[  429.921165]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.925428]  ? process_timeout+0x40/0x40
[  429.929496]  ? mark_held_locks+0xc7/0x130
[  429.933639]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.938130]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.942625]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.946907]  ? lockdep_hardirqs_on+0x296/0x5b0
[  429.951492]  ? trace_hardirqs_on+0xbd/0x310
[  429.955813]  ? kasan_check_read+0x11/0x20
[  429.959975]  ? __run_timers+0x7da/0xc70
[  429.963951]  ? trace_hardirqs_off_caller+0x310/0x310
[  429.969061]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.973313]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.977545]  __run_timers+0x7e5/0xc70
[  429.981350]  ? timer_fixup_init+0x70/0x70
[  429.985506]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  429.990521]  ? zap_class+0x640/0x640
[  429.994237]  ? print_usage_bug+0xc0/0xc0
[  429.998299]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  430.003506]  ? find_held_lock+0x36/0x1c0
[  430.007580]  ? zap_class+0x640/0x640
[  430.011300]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.016850]  ? check_preemption_disabled+0x48/0x280
[  430.021887]  ? __lock_is_held+0xb5/0x140
[  430.025961]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.031497]  ? check_preemption_disabled+0x48/0x280
[  430.036515]  run_timer_softirq+0x52/0xb0
[  430.040572]  ? rcu_read_lock_sched_held+0x14f/0x180
[  430.045586]  __do_softirq+0x308/0xb7e
[  430.049401]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  430.053889]  ? lock_downgrade+0x900/0x900
[  430.058067]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  430.063214]  ? pvclock_read_flags+0x160/0x160
[  430.067702]  ? lapic_next_event+0x5a/0x90
[  430.071848]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.077391]  ? kvm_clock_read+0x18/0x30
[  430.081363]  ? kvm_sched_clock_read+0x9/0x20
[  430.085802]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.091341]  ? check_preemption_disabled+0x48/0x280
[  430.096361]  irq_exit+0x17f/0x1c0
[  430.099848]  smp_apic_timer_interrupt+0x1cb/0x760
[  430.104726]  ? smp_call_function_single_interrupt+0x159/0x650
[  430.110608]  ? smp_call_function_single_interrupt+0x650/0x650
[  430.116490]  ? interrupt_entry+0xb5/0xc0
[  430.120572]  ? trace_hardirqs_off_caller+0xbb/0x310
[  430.125586]  ? trace_hardirqs_off_caller+0xbb/0x310
[  430.130600]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.135440]  ? trace_hardirqs_on_caller+0x310/0x310
[  430.140450]  ? trace_hardirqs_on_caller+0x310/0x310
[  430.145466]  ? task_prio+0x50/0x50
[  430.149016]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.154573]  ? check_preemption_disabled+0x48/0x280
[  430.159596]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.164443]  apic_timer_interrupt+0xf/0x20
[  430.168668]  </IRQ>
[  430.170908] RIP: 0010:dump_stack+0x358/0x39d
[  430.175318] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  430.194236] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  430.201943] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  430.209213] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  430.216479] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  430.223747] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  430.231023] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  430.238303]  ? dump_stack+0x34f/0x39d
[  430.242112]  ? dump_stack_print_info.cold.1+0x20/0x20
[  430.247315]  ? mark_held_locks+0x130/0x130
[  430.251543]  ? mark_held_locks+0x130/0x130
[  430.255773]  dump_header+0x27b/0xf72
[  430.259499]  ? pagefault_out_of_memory+0x197/0x197
[  430.264440]  ? __lock_acquire+0x62f/0x4c20
[  430.268689]  ? percpu_ref_get_many+0x240/0x240
[  430.273276]  ? print_usage_bug+0xc0/0xc0
[  430.277338]  ? zap_class+0x640/0x640
[  430.281079]  ? print_usage_bug+0xc0/0xc0
[  430.285140]  ? print_usage_bug+0xc0/0xc0
[  430.289217]  ? zap_class+0x640/0x640
[  430.292945]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.298487]  ? find_held_lock+0x36/0x1c0
[  430.302586]  ? mark_held_locks+0xc7/0x130
[  430.306752]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  430.311857]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  430.316982]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  430.321588]  ? trace_hardirqs_on+0xbd/0x310
[  430.325925]  ? kasan_check_read+0x11/0x20
[  430.330084]  ? ___ratelimit+0x3b4/0x672
[  430.334053]  ? trace_hardirqs_off_caller+0x310/0x310
[  430.339171]  ? trace_hardirqs_on+0x310/0x310
[  430.343579]  ? lock_downgrade+0x900/0x900
[  430.347745]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  430.352855]  ? ___ratelimit+0x3b9/0x672
[  430.356847]  ? idr_get_free+0xf70/0xf70
[  430.360822]  ? find_held_lock+0x36/0x1c0
[  430.364897]  oom_kill_process.cold.27+0x10/0x903
[  430.369656]  ? zap_class+0x640/0x640
[  430.373369]  ? check_preemption_disabled+0x48/0x280
[  430.378392]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  430.383337]  ? kasan_check_read+0x11/0x20
[  430.387484]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.392763]  ? oom_evaluate_task+0x540/0x540
[  430.397181]  ? find_held_lock+0x36/0x1c0
[  430.401251]  ? out_of_memory+0x974/0x1430
[  430.405401]  ? lock_downgrade+0x900/0x900
[  430.409552]  ? check_preemption_disabled+0x48/0x280
[  430.414574]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  430.419502]  ? kasan_check_read+0x11/0x20
[  430.423676]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.428952]  ? rcu_softirq_qs+0x20/0x20
[  430.432980]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.438526]  ? oom_evaluate_task+0x302/0x540
[  430.442938]  out_of_memory+0xa84/0x1430
[  430.446919]  ? oom_killer_disable+0x3a0/0x3a0
[  430.451412]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  430.456353]  ? __ww_mutex_check_waiters+0x160/0x160
[  430.461373]  __alloc_pages_slowpath+0x2354/0x2e10
[  430.466241]  ? warn_alloc+0x120/0x120
[  430.470039]  ? mark_held_locks+0x130/0x130
[  430.474287]  ? find_get_entry+0xaae/0x1120
[  430.478531]  ? filemap_map_pages+0x1a20/0x1a20
[  430.483120]  ? zap_class+0x640/0x640
[  430.486853]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.492394]  ? check_preemption_disabled+0x48/0x280
[  430.497431]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.502966]  ? should_fail+0x22d/0xd01
[  430.506886]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  430.511993]  ? zap_class+0x640/0x640
[  430.515736]  ? __lock_is_held+0xb5/0x140
[  430.519834]  ? mark_held_locks+0x130/0x130
[  430.524070]  ? lock_release+0xa00/0xa00
[  430.528070]  ? perf_trace_sched_process_exec+0x860/0x860
[  430.533517]  ? xa_load+0x2ba/0x460
[  430.537053]  ? lock_downgrade+0x900/0x900
[  430.541220]  ? __might_sleep+0x95/0x190
[  430.545225]  __alloc_pages_nodemask+0xa80/0xde0
[  430.549906]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  430.554921]  ? __page_cache_alloc+0x191/0x5c0
[  430.559415]  ? xa_load+0x2e1/0x460
[  430.562957]  ? xa_clear_mark+0x40/0x40
[  430.566844]  ? zap_class+0x640/0x640
[  430.570566]  ? zap_class+0x640/0x640
[  430.574278]  ? zap_class+0x640/0x640
[  430.577994]  ? __do_page_cache_readahead+0x663/0x810
[  430.583109]  ? find_held_lock+0x36/0x1c0
[  430.587205]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  430.592764]  alloc_pages_current+0x173/0x350
[  430.597179]  __page_cache_alloc+0x38c/0x5c0
[  430.601501]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  430.606448]  ? kasan_check_read+0x11/0x20
[  430.610599]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.615878]  ? generic_perform_write+0x6a0/0x6a0
[  430.620630]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.626171]  ? check_preemption_disabled+0x48/0x280
[  430.631214]  filemap_fault+0x1595/0x25f0
[  430.635286]  ? __lock_page_or_retry+0xa00/0xa00
[  430.639985]  ? mark_held_locks+0x130/0x130
[  430.644229]  ? filemap_map_pages+0xd6b/0x1a20
[  430.648721]  ? lock_downgrade+0x900/0x900
[  430.652861]  ? check_preemption_disabled+0x48/0x280
[  430.657877]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  430.662811]  ? kasan_check_read+0x11/0x20
[  430.666960]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.672237]  ? rcu_softirq_qs+0x20/0x20
[  430.676227]  ? filemap_map_pages+0xd92/0x1a20
[  430.680738]  ? find_get_entries_tag+0x1400/0x1400
[  430.685585]  ? debug_object_destroy+0x2b0/0x2b0
[  430.690260]  ? lock_pi_update_atomic+0x150/0x150
[  430.695025]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.700582]  ? lock_acquire+0x1ed/0x520
[  430.704557]  ? ext4_filemap_fault+0x7a/0xad
[  430.708886]  ? lock_release+0xa00/0xa00
[  430.712876]  ? perf_trace_sched_process_exec+0x860/0x860
[  430.718339]  ? print_usage_bug+0xc0/0xc0
[  430.722406]  ? print_usage_bug+0xc0/0xc0
[  430.726483]  ? down_read+0x8d/0x120
[  430.730107]  ? ext4_filemap_fault+0x7a/0xad
[  430.734452]  ? __down_interruptible+0x700/0x700
[  430.739135]  ext4_filemap_fault+0x82/0xad
[  430.743290]  __do_fault+0x100/0x6b0
[  430.746924]  ? pmd_devmap_trans_unstable+0x220/0x220
[  430.752035]  ? mark_held_locks+0x130/0x130
[  430.756274]  ? mark_held_locks+0x130/0x130
[  430.760518]  ? debug_smp_processor_id+0x1c/0x20
[  430.765187]  ? perf_trace_lock+0x14d/0x7a0
[  430.769440]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.775014]  __handle_mm_fault+0x3ea0/0x5be0
[  430.779432]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  430.784275]  ? lock_is_held_type+0x210/0x210
[  430.788686]  ? ksys_dup3+0x680/0x680
[  430.792411]  ? zap_class+0x640/0x640
[  430.796118]  ? zap_class+0x640/0x640
[  430.800325]  ? __x64_sys_futex+0x53e/0x6a0
[  430.804560]  ? find_held_lock+0x36/0x1c0
[  430.808635]  ? handle_mm_fault+0x42a/0xc70
[  430.812864]  ? lock_downgrade+0x900/0x900
[  430.817013]  ? check_preemption_disabled+0x48/0x280
[  430.822030]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  430.826966]  ? kasan_check_read+0x11/0x20
[  430.831132]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.836451]  ? rcu_softirq_qs+0x20/0x20
[  430.840432]  ? trace_hardirqs_off_caller+0x310/0x310
[  430.845550]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.851085]  ? check_preemption_disabled+0x48/0x280
[  430.856100]  handle_mm_fault+0x54f/0xc70
[  430.860159]  ? __handle_mm_fault+0x5be0/0x5be0
[  430.864739]  ? find_vma+0x34/0x190
[  430.868284]  __do_page_fault+0x5e8/0xe60
[  430.872342]  ? trace_hardirqs_off+0xb8/0x310
[  430.876758]  do_page_fault+0xf2/0x7e0
[  430.880567]  ? vmalloc_sync_all+0x30/0x30
[  430.884715]  ? error_entry+0x70/0xd0
[  430.888429]  ? trace_hardirqs_off_caller+0xbb/0x310
[  430.893538]  ? trace_hardirqs_on_caller+0xc0/0x310
[  430.898466]  ? syscall_return_slowpath+0x5e0/0x5e0
[  430.903393]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.908239]  ? trace_hardirqs_on_caller+0x310/0x310
[  430.913252]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  430.918730]  ? prepare_exit_to_usermode+0x291/0x3b0
[  430.923742]  ? page_fault+0x8/0x30
[  430.927282]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.932124]  ? page_fault+0x8/0x30
[  430.935667]  page_fault+0x1e/0x30
[  430.939117] RIP: 0033:0x40f9c0
[  430.942316] Code: Bad RIP value.
[  430.945674] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  430.951056] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  430.958324] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  430.965591] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  430.972852] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  430.980167] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  430.987480] warn_alloc_show_mem: 1 callbacks suppressed
[  430.987491] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  430.987492] Mem-Info:
[  430.987521] active_anon:54833 inactive_anon:712 isolated_anon:0
[  430.987521]  active_file:11 inactive_file:12 isolated_file:0
[  430.987521]  unevictable:0 dirty:0 writeback:0 unstable:0
[  430.987521]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  430.987521]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  430.987521]  free:13768 free_pcp:742 free_cma:0
[  430.992864] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  430.999621] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  431.002036] Call Trace:
[  431.034930] 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
[  431.044296]  dump_stack+0x244/0x39d
[  431.071846] lowmem_reserve[]: 0 2818 6321 6321
[  431.074447]  ? dump_stack_print_info.cold.1+0x20/0x20
[  431.100526] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  431.104163]  warn_alloc.cold.116+0xb7/0x1bd
[  431.108711] lowmem_reserve[]: 0 0 3503 3503
[  431.113889]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  431.141617] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  431.145931]  ? lock_downgrade+0x900/0x900
[  431.150236] lowmem_reserve[]: 0 0 0 0
[  431.155070]  ? trace_hardirqs_off+0xb8/0x310
[  431.184202] 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
[  431.188342]  ? trace_hardirqs_off+0xb8/0x310
[  431.192129] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  431.196531]  __alloc_pages_slowpath+0x26e8/0x2e10
[  431.210033] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  431.214503]  ? warn_alloc+0x120/0x120
[  431.230158] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  431.235004]  ? warn_alloc+0x120/0x120
[  431.250350] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  431.254134]  ? warn_alloc+0x120/0x120
[  431.262941] 782 total pagecache pages
[  431.266731]  ? print_usage_bug+0xc0/0xc0
[  431.275285] 0 pages in swap cache
[  431.279079]  ? print_usage_bug+0xc0/0xc0
[  431.282862] Swap cache stats: add 0, delete 0, find 0/0
[  431.286919]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.290355] Free swap  = 0kB
[  431.294431]  ? should_fail+0x22d/0xd01
[  431.299768] Total swap = 0kB
[  431.305303]  ? __lock_acquire+0x62f/0x4c20
[  431.308315] 1965979 pages RAM
[  431.312197]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  431.315189] 0 pages HighMem/MovableOnly
[  431.319416]  ? __lock_acquire+0x62f/0x4c20
[  431.322498] 342853 pages reserved
[  431.327596]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  431.331544] 0 pages cma reserved
[  431.335783]  ? __lock_acquire+0x62f/0x4c20
[  431.339332] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  431.344331]  ? should_fail+0x22d/0xd01
[  431.344354]  ? mark_held_locks+0x130/0x130
[  431.347762] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  431.351918]  ? mark_held_locks+0x130/0x130
[  431.358386] syz-fuzzer cpuset=/ mems_allowed=0
[  431.362267]  ? mark_held_locks+0x130/0x130
[  431.389708]  ? zap_class+0x640/0x640
[  431.393424]  ? print_usage_bug+0xc0/0xc0
[  431.397499]  ? mark_held_locks+0x130/0x130
[  431.401733]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.407273]  ? check_preemption_disabled+0x48/0x280
[  431.412307]  ? __lock_is_held+0xb5/0x140
[  431.416375]  __alloc_pages_nodemask+0xa80/0xde0
[  431.421043]  ? zap_class+0x640/0x640
[  431.424756]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  431.429809]  ? find_held_lock+0x36/0x1c0
[  431.433903]  ? ____cache_alloc_node+0x1c7/0x1e0
[  431.438575]  ? lock_downgrade+0x900/0x900
[  431.442780]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.448328]  cache_grow_begin+0xa5/0x8c0
[  431.452420]  ? do_raw_spin_unlock+0xa7/0x330
[  431.456840]  fallback_alloc+0x204/0x2e0
[  431.460824]  ____cache_alloc_node+0x1c7/0x1e0
[  431.465328]  kmem_cache_alloc_node+0xe3/0x730
[  431.469828]  ? ipv6_get_ifaddr+0x42e/0x620
[  431.474075]  __alloc_skb+0x119/0x770
[  431.477790]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.483073]  ? netdev_alloc_frag+0x1f0/0x1f0
[  431.487481]  ? lock_downgrade+0x900/0x900
[  431.491640]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.497183]  ? refcount_sub_and_test_checked+0x203/0x310
[  431.502638]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  431.508090]  ? addrconf_rs_timer+0x690/0x690
[  431.512514]  ndisc_alloc_skb+0x144/0x340
[  431.516584]  ndisc_send_rs+0x331/0x6e0
[  431.520477]  addrconf_rs_timer+0x314/0x690
[  431.524722]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.528970]  call_timer_fn+0x272/0x920
[  431.532857]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.537096]  ? process_timeout+0x40/0x40
[  431.541165]  ? __run_timers+0x7da/0xc70
[  431.545146]  ? _raw_spin_unlock_irq+0x27/0x80
[  431.549644]  ? _raw_spin_unlock_irq+0x27/0x80
[  431.554143]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.558389]  ? lockdep_hardirqs_on+0x296/0x5b0
[  431.562970]  ? trace_hardirqs_on+0xbd/0x310
[  431.567330]  ? kasan_check_read+0x11/0x20
[  431.571479]  ? __run_timers+0x7da/0xc70
[  431.575456]  ? trace_hardirqs_off_caller+0x310/0x310
[  431.580654]  ? tcp_compressed_ack_kick+0x220/0x220
[  431.585610]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.589840]  __run_timers+0x7e5/0xc70
[  431.593650]  ? timer_fixup_init+0x70/0x70
[  431.597811]  ? _raw_spin_unlock_irq+0x27/0x80
[  431.602308]  ? _raw_spin_unlock_irq+0x27/0x80
[  431.606806]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  431.611393]  ? trace_hardirqs_on+0xbd/0x310
[  431.615717]  ? kasan_check_read+0x11/0x20
[  431.619868]  ? finish_task_switch+0x1f4/0x910
[  431.624388]  ? trace_hardirqs_off_caller+0x310/0x310
[  431.629491]  ? compat_start_thread+0x80/0x80
[  431.633932]  ? pvclock_read_flags+0x160/0x160
[  431.638427]  ? __switch_to_asm+0x34/0x70
[  431.642505]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.648067]  ? check_preemption_disabled+0x48/0x280
[  431.653087]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  431.658619]  ? rcu_pm_notify+0xc0/0xc0
[  431.662501]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.668297]  ? check_preemption_disabled+0x48/0x280
[  431.673320]  run_timer_softirq+0x52/0xb0
[  431.677377]  ? rcu_read_lock_sched_held+0x14f/0x180
[  431.682405]  __do_softirq+0x308/0xb7e
[  431.686203]  ? retint_kernel+0x2d/0x2d
[  431.690094]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  431.695186]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  431.700638]  ? trace_hardirqs_on+0x310/0x310
[  431.705075]  ? schedule+0x108/0x460
[  431.708705]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  431.713478]  ? trace_hardirqs_off+0xb8/0x310
[  431.717911]  ? smpboot_thread_fn+0x68b/0xa00
[  431.722324]  ? trace_hardirqs_on+0x310/0x310
[  431.726731]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.732297]  ? check_preemption_disabled+0x48/0x280
[  431.737335]  ? takeover_tasklets+0xa90/0xa90
[  431.741768]  run_ksoftirqd+0x5e/0x100
[  431.745563]  smpboot_thread_fn+0x68b/0xa00
[  431.749801]  ? sort_range+0x30/0x30
[  431.753430]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  431.758530]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.764093]  ? __kthread_parkme+0xfb/0x1a0
[  431.768341]  ? sort_range+0x30/0x30
[  431.771960]  kthread+0x35a/0x440
[  431.775377]  ? kthread_stop+0x900/0x900
[  431.779390]  ret_from_fork+0x3a/0x50
[  431.783116] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  431.783187] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  431.790054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  431.790059] Call Trace:
[  431.790066]  <IRQ>
[  431.790082]  dump_stack+0x244/0x39d
[  431.790101]  ? dump_stack_print_info.cold.1+0x20/0x20
[  431.796649] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  431.806380]  warn_alloc.cold.116+0xb7/0x1bd
[  431.808933] ksoftirqd/0 cpuset=/ mems_allowed=0
[  431.811090]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  431.844131]  ? lock_downgrade+0x900/0x900
[  431.848279]  ? trace_hardirqs_off+0xb8/0x310
[  431.852685]  ? trace_hardirqs_off+0xb8/0x310
[  431.857091]  __alloc_pages_slowpath+0x26e8/0x2e10
[  431.861965]  ? warn_alloc+0x120/0x120
[  431.865765]  ? print_usage_bug+0xc0/0xc0
[  431.869826]  ? warn_alloc+0x120/0x120
[  431.873629]  ? warn_alloc+0x120/0x120
[  431.877428]  ? print_usage_bug+0xc0/0xc0
[  431.881494]  ? print_usage_bug+0xc0/0xc0
[  431.885555]  ? __lock_acquire+0x62f/0x4c20
[  431.889796]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.895344]  ? should_fail+0x22d/0xd01
[  431.899234]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  431.904341]  ? __lock_acquire+0x62f/0x4c20
[  431.908596]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  431.913694]  ? __lock_acquire+0x62f/0x4c20
[  431.917925]  ? should_fail+0x22d/0xd01
[  431.921814]  ? find_held_lock+0x36/0x1c0
[  431.925885]  ? mark_held_locks+0x130/0x130
[  431.930122]  ? mark_held_locks+0x130/0x130
[  431.934358]  ? zap_class+0x640/0x640
[  431.938072]  ? zap_class+0x640/0x640
[  431.941793]  ? print_usage_bug+0xc0/0xc0
[  431.945857]  ? do_raw_spin_unlock+0xa7/0x330
[  431.950266]  ? zap_class+0x640/0x640
[  431.953983]  ? print_usage_bug+0xc0/0xc0
[  431.958051]  ? wq_watchdog_touch+0x9c/0xfe
[  431.962293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.967833]  ? check_preemption_disabled+0x48/0x280
[  431.972864]  ? __lock_is_held+0xb5/0x140
[  431.976936]  __alloc_pages_nodemask+0xa80/0xde0
[  431.981604]  ? zap_class+0x640/0x640
[  431.985324]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  431.990399]  ? find_held_lock+0x36/0x1c0
[  431.994462]  ? ____cache_alloc_node+0x1c7/0x1e0
[  431.999128]  ? lock_downgrade+0x900/0x900
[  432.003278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.008822]  cache_grow_begin+0xa5/0x8c0
[  432.012881]  ? do_raw_spin_unlock+0xa7/0x330
[  432.017295]  fallback_alloc+0x204/0x2e0
[  432.021285]  ____cache_alloc_node+0x1c7/0x1e0
[  432.025794]  kmem_cache_alloc_node+0xe3/0x730
[  432.030309]  ? ipv6_get_ifaddr+0x42e/0x620
[  432.034584]  __alloc_skb+0x119/0x770
[  432.038294]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  432.043576]  ? netdev_alloc_frag+0x1f0/0x1f0
[  432.047989]  ? lock_downgrade+0x900/0x900
[  432.052153]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.057693]  ? refcount_sub_and_test_checked+0x203/0x310
[  432.063161]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  432.068615]  ? addrconf_rs_timer+0x690/0x690
[  432.073075]  ndisc_alloc_skb+0x144/0x340
[  432.077140]  ndisc_send_rs+0x331/0x6e0
[  432.081059]  addrconf_rs_timer+0x314/0x690
[  432.085471]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.089728]  call_timer_fn+0x272/0x920
[  432.093611]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.097845]  ? process_timeout+0x40/0x40
[  432.101913]  ? mark_held_locks+0xc7/0x130
[  432.106060]  ? _raw_spin_unlock_irq+0x27/0x80
[  432.110551]  ? _raw_spin_unlock_irq+0x27/0x80
[  432.115045]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.119275]  ? lockdep_hardirqs_on+0x296/0x5b0
[  432.123885]  ? trace_hardirqs_on+0xbd/0x310
[  432.128202]  ? kasan_check_read+0x11/0x20
[  432.132358]  ? __run_timers+0x7da/0xc70
[  432.136333]  ? trace_hardirqs_off_caller+0x310/0x310
[  432.141448]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.145703]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.149933]  __run_timers+0x7e5/0xc70
[  432.153739]  ? timer_fixup_init+0x70/0x70
[  432.157889]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  432.162903]  ? zap_class+0x640/0x640
[  432.166617]  ? print_usage_bug+0xc0/0xc0
[  432.170680]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  432.175884]  ? find_held_lock+0x36/0x1c0
[  432.179949]  ? zap_class+0x640/0x640
[  432.183668]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.189209]  ? check_preemption_disabled+0x48/0x280
[  432.194233]  ? __lock_is_held+0xb5/0x140
[  432.198321]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.203884]  ? check_preemption_disabled+0x48/0x280
[  432.208917]  run_timer_softirq+0x52/0xb0
[  432.213038]  ? rcu_read_lock_sched_held+0x14f/0x180
[  432.218078]  __do_softirq+0x308/0xb7e
[  432.221872]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  432.226355]  ? lock_downgrade+0x900/0x900
[  432.230523]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  432.235670]  ? pvclock_read_flags+0x160/0x160
[  432.240162]  ? lapic_next_event+0x5a/0x90
[  432.244324]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.249911]  ? kvm_clock_read+0x18/0x30
[  432.253997]  ? kvm_sched_clock_read+0x9/0x20
[  432.258413]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.263950]  ? check_preemption_disabled+0x48/0x280
[  432.268967]  irq_exit+0x17f/0x1c0
[  432.272413]  smp_apic_timer_interrupt+0x1cb/0x760
[  432.277250]  ? smp_call_function_single_interrupt+0x159/0x650
[  432.283143]  ? smp_call_function_single_interrupt+0x650/0x650
[  432.289027]  ? interrupt_entry+0xb5/0xc0
[  432.293086]  ? trace_hardirqs_off_caller+0xbb/0x310
[  432.298093]  ? trace_hardirqs_off_caller+0xbb/0x310
[  432.303106]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  432.307946]  ? trace_hardirqs_on_caller+0x310/0x310
[  432.312973]  ? trace_hardirqs_on_caller+0x310/0x310
[  432.317986]  ? task_prio+0x50/0x50
[  432.321536]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.327078]  ? check_preemption_disabled+0x48/0x280
[  432.332111]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  432.337027]  apic_timer_interrupt+0xf/0x20
[  432.341280]  </IRQ>
[  432.343514] RIP: 0010:dump_stack+0x358/0x39d
[  432.347918] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  432.366812] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  432.374518] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  432.381789] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  432.389054] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  432.396333] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  432.403614] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  432.410893]  ? dump_stack+0x34f/0x39d
[  432.414716]  ? dump_stack_print_info.cold.1+0x20/0x20
[  432.419905]  ? mark_held_locks+0x130/0x130
[  432.424174]  ? mark_held_locks+0x130/0x130
[  432.428424]  dump_header+0x27b/0xf72
[  432.432172]  ? pagefault_out_of_memory+0x197/0x197
[  432.437113]  ? __lock_acquire+0x62f/0x4c20
[  432.441372]  ? percpu_ref_get_many+0x240/0x240
[  432.445962]  ? print_usage_bug+0xc0/0xc0
[  432.450038]  ? zap_class+0x640/0x640
[  432.453753]  ? print_usage_bug+0xc0/0xc0
[  432.457813]  ? print_usage_bug+0xc0/0xc0
[  432.461873]  ? zap_class+0x640/0x640
[  432.465583]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.471122]  ? find_held_lock+0x36/0x1c0
[  432.475188]  ? mark_held_locks+0xc7/0x130
[  432.479338]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  432.484453]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  432.489665]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  432.494246]  ? trace_hardirqs_on+0xbd/0x310
[  432.498581]  ? kasan_check_read+0x11/0x20
[  432.502749]  ? ___ratelimit+0x3b4/0x672
[  432.506716]  ? trace_hardirqs_off_caller+0x310/0x310
[  432.511816]  ? trace_hardirqs_on+0x310/0x310
[  432.516223]  ? lock_downgrade+0x900/0x900
[  432.520374]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  432.525473]  ? ___ratelimit+0x3b9/0x672
[  432.529449]  ? idr_get_free+0xf70/0xf70
[  432.533419]  ? find_held_lock+0x36/0x1c0
[  432.537491]  oom_kill_process.cold.27+0x10/0x903
[  432.542247]  ? zap_class+0x640/0x640
[  432.545969]  ? check_preemption_disabled+0x48/0x280
[  432.550980]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  432.555906]  ? kasan_check_read+0x11/0x20
[  432.560060]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  432.565348]  ? oom_evaluate_task+0x540/0x540
[  432.569755]  ? find_held_lock+0x36/0x1c0
[  432.573824]  ? out_of_memory+0x974/0x1430
[  432.577982]  ? lock_downgrade+0x900/0x900
[  432.582133]  ? check_preemption_disabled+0x48/0x280
[  432.587158]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  432.592086]  ? kasan_check_read+0x11/0x20
[  432.596244]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  432.601517]  ? rcu_softirq_qs+0x20/0x20
[  432.605505]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.611041]  ? oom_evaluate_task+0x302/0x540
[  432.615447]  out_of_memory+0xa84/0x1430
[  432.619431]  ? oom_killer_disable+0x3a0/0x3a0
[  432.623969]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  432.628929]  ? __ww_mutex_check_waiters+0x160/0x160
[  432.633959]  __alloc_pages_slowpath+0x2354/0x2e10
[  432.638821]  ? warn_alloc+0x120/0x120
[  432.642610]  ? mark_held_locks+0x130/0x130
[  432.646877]  ? find_get_entry+0xaae/0x1120
[  432.651149]  ? filemap_map_pages+0x1a20/0x1a20
[  432.655767]  ? zap_class+0x640/0x640
[  432.659490]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.665034]  ? check_preemption_disabled+0x48/0x280
[  432.670053]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.675585]  ? should_fail+0x22d/0xd01
[  432.679483]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  432.684601]  ? zap_class+0x640/0x640
[  432.688334]  ? __lock_is_held+0xb5/0x140
[  432.692401]  ? mark_held_locks+0x130/0x130
[  432.696632]  ? lock_release+0xa00/0xa00
[  432.700644]  ? perf_trace_sched_process_exec+0x860/0x860
[  432.706135]  ? xa_load+0x2ba/0x460
[  432.709726]  ? lock_downgrade+0x900/0x900
[  432.713873]  ? __might_sleep+0x95/0x190
[  432.717851]  __alloc_pages_nodemask+0xa80/0xde0
[  432.722522]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  432.727553]  ? __page_cache_alloc+0x191/0x5c0
[  432.732048]  ? xa_load+0x2e1/0x460
[  432.735591]  ? xa_clear_mark+0x40/0x40
[  432.739507]  ? zap_class+0x640/0x640
[  432.743237]  ? zap_class+0x640/0x640
[  432.746957]  ? zap_class+0x640/0x640
[  432.750667]  ? __do_page_cache_readahead+0x663/0x810
[  432.755772]  ? find_held_lock+0x36/0x1c0
[  432.759839]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  432.765383]  alloc_pages_current+0x173/0x350
[  432.769854]  __page_cache_alloc+0x38c/0x5c0
[  432.774177]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  432.779102]  ? kasan_check_read+0x11/0x20
[  432.783274]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  432.788583]  ? generic_perform_write+0x6a0/0x6a0
[  432.793347]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.799368]  ? check_preemption_disabled+0x48/0x280
[  432.804402]  filemap_fault+0x1595/0x25f0
[  432.808499]  ? __lock_page_or_retry+0xa00/0xa00
[  432.813185]  ? mark_held_locks+0x130/0x130
[  432.817442]  ? filemap_map_pages+0xd6b/0x1a20
[  432.821937]  ? lock_downgrade+0x900/0x900
[  432.826082]  ? check_preemption_disabled+0x48/0x280
[  432.831110]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  432.836055]  ? kasan_check_read+0x11/0x20
[  432.840195]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  432.845464]  ? rcu_softirq_qs+0x20/0x20
[  432.849445]  ? filemap_map_pages+0xd92/0x1a20
[  432.853953]  ? find_get_entries_tag+0x1400/0x1400
[  432.858806]  ? debug_object_destroy+0x2b0/0x2b0
[  432.863475]  ? lock_pi_update_atomic+0x150/0x150
[  432.868242]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.873812]  ? lock_acquire+0x1ed/0x520
[  432.877802]  ? ext4_filemap_fault+0x7a/0xad
[  432.882140]  ? lock_release+0xa00/0xa00
[  432.886110]  ? perf_trace_sched_process_exec+0x860/0x860
[  432.891573]  ? print_usage_bug+0xc0/0xc0
[  432.895651]  ? print_usage_bug+0xc0/0xc0
[  432.899743]  ? down_read+0x8d/0x120
[  432.903364]  ? ext4_filemap_fault+0x7a/0xad
[  432.907687]  ? __down_interruptible+0x700/0x700
[  432.912362]  ext4_filemap_fault+0x82/0xad
[  432.916509]  __do_fault+0x100/0x6b0
[  432.920138]  ? pmd_devmap_trans_unstable+0x220/0x220
[  432.925260]  ? mark_held_locks+0x130/0x130
[  432.929503]  ? mark_held_locks+0x130/0x130
[  432.933753]  ? debug_smp_processor_id+0x1c/0x20
[  432.938423]  ? perf_trace_lock+0x14d/0x7a0
[  432.942660]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.948202]  __handle_mm_fault+0x3ea0/0x5be0
[  432.952613]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  432.957452]  ? lock_is_held_type+0x210/0x210
[  432.961874]  ? ksys_dup3+0x680/0x680
[  432.965596]  ? zap_class+0x640/0x640
[  432.969319]  ? zap_class+0x640/0x640
[  432.973031]  ? __x64_sys_futex+0x53e/0x6a0
[  432.977285]  ? find_held_lock+0x36/0x1c0
[  432.981385]  ? handle_mm_fault+0x42a/0xc70
[  432.985635]  ? lock_downgrade+0x900/0x900
[  432.989787]  ? check_preemption_disabled+0x48/0x280
[  432.994812]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  432.999744]  ? kasan_check_read+0x11/0x20
[  433.003893]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.009171]  ? rcu_softirq_qs+0x20/0x20
[  433.013149]  ? trace_hardirqs_off_caller+0x310/0x310
[  433.018251]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.023791]  ? check_preemption_disabled+0x48/0x280
[  433.028821]  handle_mm_fault+0x54f/0xc70
[  433.032881]  ? __handle_mm_fault+0x5be0/0x5be0
[  433.037496]  ? find_vma+0x34/0x190
[  433.041044]  __do_page_fault+0x5e8/0xe60
[  433.045100]  ? trace_hardirqs_off+0xb8/0x310
[  433.049525]  do_page_fault+0xf2/0x7e0
[  433.053356]  ? vmalloc_sync_all+0x30/0x30
[  433.057500]  ? error_entry+0x70/0xd0
[  433.061207]  ? trace_hardirqs_off_caller+0xbb/0x310
[  433.066216]  ? trace_hardirqs_on_caller+0xc0/0x310
[  433.071140]  ? syscall_return_slowpath+0x5e0/0x5e0
[  433.076066]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.080907]  ? trace_hardirqs_on_caller+0x310/0x310
[  433.085922]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  433.091384]  ? prepare_exit_to_usermode+0x291/0x3b0
[  433.096397]  ? page_fault+0x8/0x30
[  433.099970]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.104831]  ? page_fault+0x8/0x30
[  433.108379]  page_fault+0x1e/0x30
[  433.111840] RIP: 0033:0x40f9c0
[  433.115058] Code: Bad RIP value.
[  433.118432] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  433.123818] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  433.131082] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  433.138347] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  433.145623] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  433.152886] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  433.160184] warn_alloc_show_mem: 1 callbacks suppressed
[  433.160195] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  433.160196] Mem-Info:
[  433.160225] active_anon:54833 inactive_anon:712 isolated_anon:0
[  433.160225]  active_file:11 inactive_file:12 isolated_file:0
[  433.160225]  unevictable:0 dirty:0 writeback:0 unstable:0
[  433.160225]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  433.160225]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  433.160225]  free:13768 free_pcp:742 free_cma:0
[  433.165564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  433.172359] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  433.174755] Call Trace:
[  433.207638] 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
[  433.216986]  dump_stack+0x244/0x39d
[  433.244534] lowmem_reserve[]: 0 2818 6321 6321
[  433.247154]  ? dump_stack_print_info.cold.1+0x20/0x20
[  433.273248] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  433.276873]  warn_alloc.cold.116+0xb7/0x1bd
[  433.281419] lowmem_reserve[]: 0 0 3503 3503
[  433.286605]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  433.314365] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  433.318681]  ? lock_downgrade+0x900/0x900
[  433.322972] lowmem_reserve[]: 0 0 0 0
[  433.327810]  ? trace_hardirqs_off+0xb8/0x310
[  433.356930] 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
[  433.361121]  ? trace_hardirqs_off+0xb8/0x310
[  433.364895] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  433.369314]  __alloc_pages_slowpath+0x26e8/0x2e10
[  433.382815] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  433.387247]  ? warn_alloc+0x120/0x120
[  433.402914] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  433.407740]  ? print_usage_bug+0xc0/0xc0
[  433.423094] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  433.426878]  ? warn_alloc+0x120/0x120
[  433.435704] 782 total pagecache pages
[  433.439755]  ? warn_alloc+0x120/0x120
[  433.448308] 0 pages in swap cache
[  433.452096]  ? print_usage_bug+0xc0/0xc0
[  433.455870] Swap cache stats: add 0, delete 0, find 0/0
[  433.459659]  ? print_usage_bug+0xc0/0xc0
[  433.463115] Free swap  = 0kB
[  433.467161]  ? __lock_acquire+0x62f/0x4c20
[  433.472495] Total swap = 0kB
[  433.476558]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.479548] 1965979 pages RAM
[  433.483772]  ? should_fail+0x22d/0xd01
[  433.486768] 0 pages HighMem/MovableOnly
[  433.492313]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  433.495391] 342853 pages reserved
[  433.499271]  ? __lock_acquire+0x62f/0x4c20
[  433.503233] 0 pages cma reserved
[  433.508341]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  433.511905] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  433.516028]  ? __lock_acquire+0x62f/0x4c20
[  433.516044]  ? should_fail+0x22d/0xd01
[  433.519478] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  433.524489]  ? find_held_lock+0x36/0x1c0
[  433.530953] syz-fuzzer cpuset=/ mems_allowed=0
[  433.535179]  ? mark_held_locks+0x130/0x130
[  433.562151]  ? mark_held_locks+0x130/0x130
[  433.566387]  ? zap_class+0x640/0x640
[  433.570106]  ? zap_class+0x640/0x640
[  433.573822]  ? print_usage_bug+0xc0/0xc0
[  433.577889]  ? do_raw_spin_unlock+0xa7/0x330
[  433.582305]  ? zap_class+0x640/0x640
[  433.586029]  ? print_usage_bug+0xc0/0xc0
[  433.590089]  ? wq_watchdog_touch+0x9c/0xfe
[  433.594331]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.599888]  ? check_preemption_disabled+0x48/0x280
[  433.604912]  ? __lock_is_held+0xb5/0x140
[  433.608975]  __alloc_pages_nodemask+0xa80/0xde0
[  433.613653]  ? zap_class+0x640/0x640
[  433.617371]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  433.622400]  ? find_held_lock+0x36/0x1c0
[  433.626470]  ? ____cache_alloc_node+0x1c7/0x1e0
[  433.631139]  ? lock_downgrade+0x900/0x900
[  433.635299]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.640838]  cache_grow_begin+0xa5/0x8c0
[  433.644900]  ? do_raw_spin_unlock+0xa7/0x330
[  433.649326]  fallback_alloc+0x204/0x2e0
[  433.653324]  ____cache_alloc_node+0x1c7/0x1e0
[  433.657822]  kmem_cache_alloc_node+0xe3/0x730
[  433.662324]  ? ipv6_get_ifaddr+0x42e/0x620
[  433.666566]  __alloc_skb+0x119/0x770
[  433.670573]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.675856]  ? netdev_alloc_frag+0x1f0/0x1f0
[  433.680269]  ? lock_downgrade+0x900/0x900
[  433.684430]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.689969]  ? refcount_sub_and_test_checked+0x203/0x310
[  433.695424]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  433.700875]  ? addrconf_rs_timer+0x690/0x690
[  433.705316]  ndisc_alloc_skb+0x144/0x340
[  433.709382]  ndisc_send_rs+0x331/0x6e0
[  433.713273]  addrconf_rs_timer+0x314/0x690
[  433.717522]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.721800]  call_timer_fn+0x272/0x920
[  433.725688]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.729927]  ? process_timeout+0x40/0x40
[  433.733995]  ? __run_timers+0x7da/0xc70
[  433.737987]  ? _raw_spin_unlock_irq+0x27/0x80
[  433.742481]  ? _raw_spin_unlock_irq+0x27/0x80
[  433.746988]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.751277]  ? lockdep_hardirqs_on+0x296/0x5b0
[  433.755870]  ? trace_hardirqs_on+0xbd/0x310
[  433.760196]  ? kasan_check_read+0x11/0x20
[  433.764361]  ? __run_timers+0x7da/0xc70
[  433.768340]  ? trace_hardirqs_off_caller+0x310/0x310
[  433.773464]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.777740]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.781977]  __run_timers+0x7e5/0xc70
[  433.785791]  ? timer_fixup_init+0x70/0x70
[  433.789942]  ? _raw_spin_unlock_irq+0x27/0x80
[  433.794430]  ? _raw_spin_unlock_irq+0x27/0x80
[  433.798933]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  433.803511]  ? trace_hardirqs_on+0xbd/0x310
[  433.807827]  ? kasan_check_read+0x11/0x20
[  433.811970]  ? finish_task_switch+0x1f4/0x910
[  433.816461]  ? trace_hardirqs_off_caller+0x310/0x310
[  433.821573]  ? compat_start_thread+0x80/0x80
[  433.826026]  ? pvclock_read_flags+0x160/0x160
[  433.830519]  ? __switch_to_asm+0x34/0x70
[  433.834578]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.840136]  ? check_preemption_disabled+0x48/0x280
[  433.845194]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  433.850731]  ? rcu_pm_notify+0xc0/0xc0
[  433.854614]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.860145]  ? check_preemption_disabled+0x48/0x280
[  433.865181]  run_timer_softirq+0x52/0xb0
[  433.869240]  ? rcu_read_lock_sched_held+0x14f/0x180
[  433.874275]  __do_softirq+0x308/0xb7e
[  433.878080]  ? retint_kernel+0x2d/0x2d
[  433.882001]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  433.887108]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  433.892574]  ? trace_hardirqs_on+0x310/0x310
[  433.896986]  ? schedule+0x108/0x460
[  433.900649]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  433.905446]  ? trace_hardirqs_off+0xb8/0x310
[  433.909881]  ? smpboot_thread_fn+0x68b/0xa00
[  433.914297]  ? trace_hardirqs_on+0x310/0x310
[  433.918708]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.924245]  ? check_preemption_disabled+0x48/0x280
[  433.929266]  ? takeover_tasklets+0xa90/0xa90
[  433.933681]  run_ksoftirqd+0x5e/0x100
[  433.937483]  smpboot_thread_fn+0x68b/0xa00
[  433.941736]  ? sort_range+0x30/0x30
[  433.945391]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  433.950529]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.956068]  ? __kthread_parkme+0xfb/0x1a0
[  433.960310]  ? sort_range+0x30/0x30
[  433.963936]  kthread+0x35a/0x440
[  433.967338]  ? kthread_stop+0x900/0x900
[  433.971328]  ret_from_fork+0x3a/0x50
[  433.975059] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  433.975130] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  433.982047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  433.982052] Call Trace:
[  433.982059]  <IRQ>
[  433.982077]  dump_stack+0x244/0x39d
[  433.982094]  ? dump_stack_print_info.cold.1+0x20/0x20
[  433.988651] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  433.997953]  warn_alloc.cold.116+0xb7/0x1bd
[  434.000519] ksoftirqd/0 cpuset=/ mems_allowed=0
[  434.002705]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  434.035608]  ? lock_downgrade+0x900/0x900
[  434.039759]  ? trace_hardirqs_off+0xb8/0x310
[  434.044174]  ? trace_hardirqs_off+0xb8/0x310
[  434.048589]  __alloc_pages_slowpath+0x26e8/0x2e10
[  434.053452]  ? warn_alloc+0x120/0x120
[  434.057289]  ? print_usage_bug+0xc0/0xc0
[  434.061354]  ? warn_alloc+0x120/0x120
[  434.065161]  ? warn_alloc+0x120/0x120
[  434.068982]  ? print_usage_bug+0xc0/0xc0
[  434.073063]  ? kvm_clock_read+0x18/0x30
[  434.077042]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  434.082075]  ? print_usage_bug+0xc0/0xc0
[  434.086151]  ? __lock_acquire+0x62f/0x4c20
[  434.090429]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.095962]  ? should_fail+0x22d/0xd01
[  434.099861]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.105158]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  434.110275]  ? __lock_acquire+0x62f/0x4c20
[  434.114518]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  434.119648]  ? __lock_acquire+0x62f/0x4c20
[  434.123879]  ? should_fail+0x22d/0xd01
[  434.127786]  ? rcu_irq_exit+0x1a2/0x390
[  434.131769]  ? mark_held_locks+0x130/0x130
[  434.136024]  ? mark_held_locks+0x130/0x130
[  434.140268]  ? mark_held_locks+0xc7/0x130
[  434.144444]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  434.149477]  ? zap_class+0x640/0x640
[  434.153221]  ? print_usage_bug+0xc0/0xc0
[  434.157301]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.162840]  ? check_preemption_disabled+0x48/0x280
[  434.167868]  ? __lock_is_held+0xb5/0x140
[  434.171934]  __alloc_pages_nodemask+0xa80/0xde0
[  434.176608]  ? zap_class+0x640/0x640
[  434.180326]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  434.185380]  ? find_held_lock+0x36/0x1c0
[  434.189456]  ? ____cache_alloc_node+0x1c7/0x1e0
[  434.194123]  ? lock_downgrade+0x900/0x900
[  434.198305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.203852]  cache_grow_begin+0xa5/0x8c0
[  434.207932]  ? do_raw_spin_unlock+0xa7/0x330
[  434.212374]  fallback_alloc+0x204/0x2e0
[  434.216353]  ____cache_alloc_node+0x1c7/0x1e0
[  434.220850]  kmem_cache_alloc_node+0xe3/0x730
[  434.225344]  ? ipv6_get_ifaddr+0x42e/0x620
[  434.229591]  __alloc_skb+0x119/0x770
[  434.233304]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.238596]  ? netdev_alloc_frag+0x1f0/0x1f0
[  434.243006]  ? lock_downgrade+0x900/0x900
[  434.247172]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.252712]  ? refcount_sub_and_test_checked+0x203/0x310
[  434.258200]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  434.263665]  ? addrconf_rs_timer+0x690/0x690
[  434.268086]  ndisc_alloc_skb+0x144/0x340
[  434.272148]  ndisc_send_rs+0x331/0x6e0
[  434.276072]  addrconf_rs_timer+0x314/0x690
[  434.280324]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  434.284579]  call_timer_fn+0x272/0x920
[  434.288478]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  434.292710]  ? process_timeout+0x40/0x40
[  434.296775]  ? mark_held_locks+0xc7/0x130
[  434.300923]  ? _raw_spin_unlock_irq+0x27/0x80
[  434.305409]  ? _raw_spin_unlock_irq+0x27/0x80
[  434.309942]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  434.314169]  ? lockdep_hardirqs_on+0x296/0x5b0
[  434.318752]  ? trace_hardirqs_on+0xbd/0x310
[  434.323078]  ? kasan_check_read+0x11/0x20
[  434.327237]  ? __run_timers+0x7da/0xc70
[  434.331225]  ? trace_hardirqs_off_caller+0x310/0x310
[  434.336346]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  434.340585]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  434.344844]  __run_timers+0x7e5/0xc70
[  434.348652]  ? timer_fixup_init+0x70/0x70
[  434.352804]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  434.357821]  ? zap_class+0x640/0x640
[  434.361545]  ? print_usage_bug+0xc0/0xc0
[  434.365641]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  434.370835]  ? find_held_lock+0x36/0x1c0
[  434.374902]  ? zap_class+0x640/0x640
[  434.378623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.384166]  ? check_preemption_disabled+0x48/0x280
[  434.389211]  ? __lock_is_held+0xb5/0x140
[  434.393301]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.398855]  ? check_preemption_disabled+0x48/0x280
[  434.403875]  run_timer_softirq+0x52/0xb0
[  434.407939]  ? rcu_read_lock_sched_held+0x14f/0x180
[  434.413131]  __do_softirq+0x308/0xb7e
[  434.416950]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  434.421459]  ? lock_downgrade+0x900/0x900
[  434.425623]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  434.430734]  ? pvclock_read_flags+0x160/0x160
[  434.435229]  ? lapic_next_event+0x5a/0x90
[  434.439380]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.444923]  ? kvm_clock_read+0x18/0x30
[  434.448894]  ? kvm_sched_clock_read+0x9/0x20
[  434.453308]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.458852]  ? check_preemption_disabled+0x48/0x280
[  434.463877]  irq_exit+0x17f/0x1c0
[  434.467336]  smp_apic_timer_interrupt+0x1cb/0x760
[  434.472181]  ? smp_call_function_single_interrupt+0x159/0x650
[  434.478071]  ? smp_call_function_single_interrupt+0x650/0x650
[  434.483954]  ? interrupt_entry+0xb5/0xc0
[  434.488049]  ? trace_hardirqs_off_caller+0xbb/0x310
[  434.493070]  ? trace_hardirqs_off_caller+0xbb/0x310
[  434.498089]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.502933]  ? trace_hardirqs_on_caller+0x310/0x310
[  434.507947]  ? trace_hardirqs_on_caller+0x310/0x310
[  434.512962]  ? task_prio+0x50/0x50
[  434.516507]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.522049]  ? check_preemption_disabled+0x48/0x280
[  434.527069]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.531923]  apic_timer_interrupt+0xf/0x20
[  434.536149]  </IRQ>
[  434.538388] RIP: 0010:dump_stack+0x358/0x39d
[  434.542800] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  434.561700] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  434.569405] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  434.576674] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  434.583950] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  434.591219] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  434.598487] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  434.605772]  ? dump_stack+0x34f/0x39d
[  434.609589]  ? dump_stack_print_info.cold.1+0x20/0x20
[  434.614813]  ? mark_held_locks+0x130/0x130
[  434.619050]  ? mark_held_locks+0x130/0x130
[  434.623289]  dump_header+0x27b/0xf72
[  434.627019]  ? pagefault_out_of_memory+0x197/0x197
[  434.631959]  ? __lock_acquire+0x62f/0x4c20
[  434.636256]  ? percpu_ref_get_many+0x240/0x240
[  434.640869]  ? print_usage_bug+0xc0/0xc0
[  434.644939]  ? zap_class+0x640/0x640
[  434.648655]  ? print_usage_bug+0xc0/0xc0
[  434.652714]  ? print_usage_bug+0xc0/0xc0
[  434.656775]  ? zap_class+0x640/0x640
[  434.660526]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.666083]  ? find_held_lock+0x36/0x1c0
[  434.670157]  ? mark_held_locks+0xc7/0x130
[  434.674309]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  434.679410]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  434.684514]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  434.689101]  ? trace_hardirqs_on+0xbd/0x310
[  434.693426]  ? kasan_check_read+0x11/0x20
[  434.697586]  ? ___ratelimit+0x3b4/0x672
[  434.701562]  ? trace_hardirqs_off_caller+0x310/0x310
[  434.706666]  ? trace_hardirqs_on+0x310/0x310
[  434.711075]  ? lock_downgrade+0x900/0x900
[  434.715227]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  434.720328]  ? ___ratelimit+0x3b9/0x672
[  434.724300]  ? idr_get_free+0xf70/0xf70
[  434.728274]  ? find_held_lock+0x36/0x1c0
[  434.732359]  oom_kill_process.cold.27+0x10/0x903
[  434.737118]  ? zap_class+0x640/0x640
[  434.740831]  ? check_preemption_disabled+0x48/0x280
[  434.745864]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  434.750797]  ? kasan_check_read+0x11/0x20
[  434.754945]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.760223]  ? oom_evaluate_task+0x540/0x540
[  434.764641]  ? find_held_lock+0x36/0x1c0
[  434.768709]  ? out_of_memory+0x974/0x1430
[  434.772859]  ? lock_downgrade+0x900/0x900
[  434.777015]  ? check_preemption_disabled+0x48/0x280
[  434.782041]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  434.786974]  ? kasan_check_read+0x11/0x20
[  434.791118]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.796391]  ? rcu_softirq_qs+0x20/0x20
[  434.800843]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.806378]  ? oom_evaluate_task+0x302/0x540
[  434.810796]  out_of_memory+0xa84/0x1430
[  434.814797]  ? oom_killer_disable+0x3a0/0x3a0
[  434.819290]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  434.824262]  ? __ww_mutex_check_waiters+0x160/0x160
[  434.829314]  __alloc_pages_slowpath+0x2354/0x2e10
[  434.834195]  ? warn_alloc+0x120/0x120
[  434.837993]  ? mark_held_locks+0x130/0x130
[  434.842233]  ? find_get_entry+0xaae/0x1120
[  434.846469]  ? filemap_map_pages+0x1a20/0x1a20
[  434.851049]  ? zap_class+0x640/0x640
[  434.854759]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.860308]  ? check_preemption_disabled+0x48/0x280
[  434.865336]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.870867]  ? should_fail+0x22d/0xd01
[  434.874766]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  434.879886]  ? zap_class+0x640/0x640
[  434.883621]  ? __lock_is_held+0xb5/0x140
[  434.887680]  ? mark_held_locks+0x130/0x130
[  434.891917]  ? lock_release+0xa00/0xa00
[  434.895908]  ? perf_trace_sched_process_exec+0x860/0x860
[  434.901354]  ? xa_load+0x2ba/0x460
[  434.904914]  ? lock_downgrade+0x900/0x900
[  434.909060]  ? __might_sleep+0x95/0x190
[  434.913052]  __alloc_pages_nodemask+0xa80/0xde0
[  434.917735]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  434.922744]  ? __page_cache_alloc+0x191/0x5c0
[  434.927231]  ? xa_load+0x2e1/0x460
[  434.930767]  ? xa_clear_mark+0x40/0x40
[  434.934670]  ? zap_class+0x640/0x640
[  434.938419]  ? zap_class+0x640/0x640
[  434.942130]  ? zap_class+0x640/0x640
[  434.945840]  ? __do_page_cache_readahead+0x663/0x810
[  434.950943]  ? find_held_lock+0x36/0x1c0
[  434.955058]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  434.960613]  alloc_pages_current+0x173/0x350
[  434.965055]  __page_cache_alloc+0x38c/0x5c0
[  434.969370]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  434.974308]  ? kasan_check_read+0x11/0x20
[  434.978450]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.983734]  ? generic_perform_write+0x6a0/0x6a0
[  434.988515]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.994051]  ? check_preemption_disabled+0x48/0x280
[  434.999083]  filemap_fault+0x1595/0x25f0
[  435.003154]  ? __lock_page_or_retry+0xa00/0xa00
[  435.007829]  ? mark_held_locks+0x130/0x130
[  435.012071]  ? filemap_map_pages+0xd6b/0x1a20
[  435.016563]  ? lock_downgrade+0x900/0x900
[  435.020720]  ? check_preemption_disabled+0x48/0x280
[  435.025731]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  435.030656]  ? kasan_check_read+0x11/0x20
[  435.034799]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.040072]  ? rcu_softirq_qs+0x20/0x20
[  435.044052]  ? filemap_map_pages+0xd92/0x1a20
[  435.048551]  ? find_get_entries_tag+0x1400/0x1400
[  435.053393]  ? debug_object_destroy+0x2b0/0x2b0
[  435.058062]  ? lock_pi_update_atomic+0x150/0x150
[  435.062824]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.068369]  ? lock_acquire+0x1ed/0x520
[  435.072366]  ? ext4_filemap_fault+0x7a/0xad
[  435.076688]  ? lock_release+0xa00/0xa00
[  435.080659]  ? perf_trace_sched_process_exec+0x860/0x860
[  435.086107]  ? print_usage_bug+0xc0/0xc0
[  435.090169]  ? print_usage_bug+0xc0/0xc0
[  435.094259]  ? down_read+0x8d/0x120
[  435.097882]  ? ext4_filemap_fault+0x7a/0xad
[  435.102200]  ? __down_interruptible+0x700/0x700
[  435.106875]  ext4_filemap_fault+0x82/0xad
[  435.111072]  __do_fault+0x100/0x6b0
[  435.114747]  ? pmd_devmap_trans_unstable+0x220/0x220
[  435.119867]  ? mark_held_locks+0x130/0x130
[  435.124099]  ? mark_held_locks+0x130/0x130
[  435.128347]  ? debug_smp_processor_id+0x1c/0x20
[  435.133032]  ? perf_trace_lock+0x14d/0x7a0
[  435.137284]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.142828]  __handle_mm_fault+0x3ea0/0x5be0
[  435.147256]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  435.152109]  ? lock_is_held_type+0x210/0x210
[  435.156517]  ? ksys_dup3+0x680/0x680
[  435.160237]  ? zap_class+0x640/0x640
[  435.163941]  ? zap_class+0x640/0x640
[  435.167662]  ? __x64_sys_futex+0x53e/0x6a0
[  435.171934]  ? find_held_lock+0x36/0x1c0
[  435.176049]  ? handle_mm_fault+0x42a/0xc70
[  435.180343]  ? lock_downgrade+0x900/0x900
[  435.184485]  ? check_preemption_disabled+0x48/0x280
[  435.189513]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  435.194437]  ? kasan_check_read+0x11/0x20
[  435.198582]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.203885]  ? rcu_softirq_qs+0x20/0x20
[  435.207856]  ? trace_hardirqs_off_caller+0x310/0x310
[  435.212959]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.218501]  ? check_preemption_disabled+0x48/0x280
[  435.223527]  handle_mm_fault+0x54f/0xc70
[  435.227592]  ? __handle_mm_fault+0x5be0/0x5be0
[  435.232193]  ? find_vma+0x34/0x190
[  435.235765]  __do_page_fault+0x5e8/0xe60
[  435.239826]  ? trace_hardirqs_off+0xb8/0x310
[  435.244242]  do_page_fault+0xf2/0x7e0
[  435.248051]  ? vmalloc_sync_all+0x30/0x30
[  435.252218]  ? error_entry+0x70/0xd0
[  435.255948]  ? trace_hardirqs_off_caller+0xbb/0x310
[  435.260979]  ? trace_hardirqs_on_caller+0xc0/0x310
[  435.265918]  ? syscall_return_slowpath+0x5e0/0x5e0
[  435.270849]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.275699]  ? trace_hardirqs_on_caller+0x310/0x310
[  435.280713]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  435.286170]  ? prepare_exit_to_usermode+0x291/0x3b0
[  435.291197]  ? page_fault+0x8/0x30
[  435.294755]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.299645]  ? page_fault+0x8/0x30
[  435.303187]  page_fault+0x1e/0x30
[  435.306636] RIP: 0033:0x40f9c0
[  435.309835] Code: Bad RIP value.
[  435.313215] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  435.318577] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  435.325878] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  435.333146] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  435.340410] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  435.347675] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  435.354970] warn_alloc_show_mem: 1 callbacks suppressed
[  435.354982] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  435.354984] Mem-Info:
[  435.355044] active_anon:54833 inactive_anon:712 isolated_anon:0
[  435.355044]  active_file:11 inactive_file:12 isolated_file:0
[  435.355044]  unevictable:0 dirty:0 writeback:0 unstable:0
[  435.355044]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  435.355044]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  435.355044]  free:13768 free_pcp:742 free_cma:0
[  435.360378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  435.367141] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  435.369536] Call Trace:
[  435.402411] 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
[  435.411756]  dump_stack+0x244/0x39d
[  435.439311] lowmem_reserve[]: 0 2818 6321 6321
[  435.441890]  ? dump_stack_print_info.cold.1+0x20/0x20
[  435.467973] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  435.471595]  warn_alloc.cold.116+0xb7/0x1bd
[  435.476138] lowmem_reserve[]: 0 0 3503 3503
[  435.481314]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  435.509044] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  435.513370]  ? lock_downgrade+0x900/0x900
[  435.517675] lowmem_reserve[]: 0 0 0 0
[  435.522523]  ? trace_hardirqs_off+0xb8/0x310
[  435.551752] 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
[  435.555921]  ? trace_hardirqs_off+0xb8/0x310
[  435.559718] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  435.564114]  __alloc_pages_slowpath+0x26e8/0x2e10
[  435.577610] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  435.582061]  ? warn_alloc+0x120/0x120
[  435.597708] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  435.602554]  ? print_usage_bug+0xc0/0xc0
[  435.617870] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  435.621653]  ? warn_alloc+0x120/0x120
[  435.630464] 782 total pagecache pages
[  435.634532]  ? warn_alloc+0x120/0x120
[  435.643104] 0 pages in swap cache
[  435.646886]  ? print_usage_bug+0xc0/0xc0
[  435.650659] Swap cache stats: add 0, delete 0, find 0/0
[  435.654445]  ? print_usage_bug+0xc0/0xc0
[  435.657873] Free swap  = 0kB
[  435.661920]  ? __lock_acquire+0x62f/0x4c20
[  435.667406] Total swap = 0kB
[  435.671466]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.674465] 1965979 pages RAM
[  435.678713]  ? should_fail+0x22d/0xd01
[  435.681703] 0 pages HighMem/MovableOnly
[  435.687224]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  435.690315] 342853 pages reserved
[  435.694192]  ? __lock_acquire+0x62f/0x4c20
[  435.698137] 0 pages cma reserved
[  435.703228]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  435.706758] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  435.710923]  ? __lock_acquire+0x62f/0x4c20
[  435.710935]  ? should_fail+0x22d/0xd01
[  435.710948]  ? find_held_lock+0x36/0x1c0
[  435.710969]  ? mark_held_locks+0x130/0x130
[  435.714361] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  435.719442]  ? mark_held_locks+0x130/0x130
[  435.725912] syz-fuzzer cpuset=/ mems_allowed=0
[  435.730135]  ? zap_class+0x640/0x640
[  435.764977]  ? zap_class+0x640/0x640
[  435.768706]  ? print_usage_bug+0xc0/0xc0
[  435.772767]  ? do_raw_spin_unlock+0xa7/0x330
[  435.777175]  ? zap_class+0x640/0x640
[  435.780888]  ? print_usage_bug+0xc0/0xc0
[  435.784951]  ? wq_watchdog_touch+0x9c/0xfe
[  435.789200]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.794749]  ? check_preemption_disabled+0x48/0x280
[  435.799777]  ? __lock_is_held+0xb5/0x140
[  435.803866]  __alloc_pages_nodemask+0xa80/0xde0
[  435.808542]  ? zap_class+0x640/0x640
[  435.812271]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  435.817368]  ? find_held_lock+0x36/0x1c0
[  435.821428]  ? ____cache_alloc_node+0x1c7/0x1e0
[  435.826103]  ? lock_downgrade+0x900/0x900
[  435.830252]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.835792]  cache_grow_begin+0xa5/0x8c0
[  435.839865]  ? do_raw_spin_unlock+0xa7/0x330
[  435.844278]  fallback_alloc+0x204/0x2e0
[  435.848257]  ____cache_alloc_node+0x1c7/0x1e0
[  435.852770]  kmem_cache_alloc_node+0xe3/0x730
[  435.857279]  ? ipv6_get_ifaddr+0x42e/0x620
[  435.861541]  __alloc_skb+0x119/0x770
[  435.865252]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.870537]  ? netdev_alloc_frag+0x1f0/0x1f0
[  435.874943]  ? lock_downgrade+0x900/0x900
[  435.879095]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.884627]  ? refcount_sub_and_test_checked+0x203/0x310
[  435.890080]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  435.895529]  ? addrconf_rs_timer+0x690/0x690
[  435.899943]  ndisc_alloc_skb+0x144/0x340
[  435.904004]  ndisc_send_rs+0x331/0x6e0
[  435.907922]  addrconf_rs_timer+0x314/0x690
[  435.912201]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.916446]  call_timer_fn+0x272/0x920
[  435.920332]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.924580]  ? process_timeout+0x40/0x40
[  435.928664]  ? __run_timers+0x7da/0xc70
[  435.932638]  ? _raw_spin_unlock_irq+0x27/0x80
[  435.937130]  ? _raw_spin_unlock_irq+0x27/0x80
[  435.941623]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.945862]  ? lockdep_hardirqs_on+0x296/0x5b0
[  435.950450]  ? trace_hardirqs_on+0xbd/0x310
[  435.954788]  ? kasan_check_read+0x11/0x20
[  435.958955]  ? __run_timers+0x7da/0xc70
[  435.962976]  ? trace_hardirqs_off_caller+0x310/0x310
[  435.968077]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.972329]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.976558]  __run_timers+0x7e5/0xc70
[  435.980374]  ? timer_fixup_init+0x70/0x70
[  435.984522]  ? _raw_spin_unlock_irq+0x27/0x80
[  435.989021]  ? _raw_spin_unlock_irq+0x27/0x80
[  435.993514]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  435.998093]  ? trace_hardirqs_on+0xbd/0x310
[  436.002441]  ? kasan_check_read+0x11/0x20
[  436.006592]  ? finish_task_switch+0x1f4/0x910
[  436.011091]  ? trace_hardirqs_off_caller+0x310/0x310
[  436.016193]  ? compat_start_thread+0x80/0x80
[  436.020629]  ? pvclock_read_flags+0x160/0x160
[  436.025115]  ? __switch_to_asm+0x34/0x70
[  436.029173]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.034723]  ? check_preemption_disabled+0x48/0x280
[  436.039816]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  436.045358]  ? rcu_pm_notify+0xc0/0xc0
[  436.049244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.054775]  ? check_preemption_disabled+0x48/0x280
[  436.059789]  run_timer_softirq+0x52/0xb0
[  436.063846]  ? rcu_read_lock_sched_held+0x14f/0x180
[  436.068860]  __do_softirq+0x308/0xb7e
[  436.072674]  ? retint_kernel+0x2d/0x2d
[  436.076566]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  436.081669]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  436.087123]  ? trace_hardirqs_on+0x310/0x310
[  436.091542]  ? schedule+0x108/0x460
[  436.095170]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  436.099939]  ? trace_hardirqs_off+0xb8/0x310
[  436.104366]  ? smpboot_thread_fn+0x68b/0xa00
[  436.108777]  ? trace_hardirqs_on+0x310/0x310
[  436.113218]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.118770]  ? check_preemption_disabled+0x48/0x280
[  436.123794]  ? takeover_tasklets+0xa90/0xa90
[  436.128201]  run_ksoftirqd+0x5e/0x100
[  436.131998]  smpboot_thread_fn+0x68b/0xa00
[  436.136256]  ? sort_range+0x30/0x30
[  436.139903]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  436.145032]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.150571]  ? __kthread_parkme+0xfb/0x1a0
[  436.154811]  ? sort_range+0x30/0x30
[  436.158443]  kthread+0x35a/0x440
[  436.161813]  ? kthread_stop+0x900/0x900
[  436.165789]  ret_from_fork+0x3a/0x50
[  436.169523] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  436.169596] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  436.176449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  436.176458] Call Trace:
[  436.183064] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  436.192289]  <IRQ>
[  436.192306]  dump_stack+0x244/0x39d
[  436.194865] ksoftirqd/0 cpuset=/ mems_allowed=0
[  436.205166]  ? dump_stack_print_info.cold.1+0x20/0x20
[  436.220790]  warn_alloc.cold.116+0xb7/0x1bd
[  436.225108]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  436.229945]  ? lock_downgrade+0x900/0x900
[  436.234135]  ? trace_hardirqs_off+0xb8/0x310
[  436.238560]  ? trace_hardirqs_off+0xb8/0x310
[  436.242974]  __alloc_pages_slowpath+0x26e8/0x2e10
[  436.247843]  ? warn_alloc+0x120/0x120
[  436.251649]  ? print_usage_bug+0xc0/0xc0
[  436.255709]  ? warn_alloc+0x120/0x120
[  436.259509]  ? warn_alloc+0x120/0x120
[  436.263338]  ? print_usage_bug+0xc0/0xc0
[  436.267434]  ? print_usage_bug+0xc0/0xc0
[  436.271492]  ? __lock_acquire+0x62f/0x4c20
[  436.275732]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.281304]  ? should_fail+0x22d/0xd01
[  436.285203]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  436.290315]  ? __lock_acquire+0x62f/0x4c20
[  436.294568]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  436.299671]  ? __lock_acquire+0x62f/0x4c20
[  436.303936]  ? should_fail+0x22d/0xd01
[  436.307826]  ? find_held_lock+0x36/0x1c0
[  436.311910]  ? mark_held_locks+0x130/0x130
[  436.316146]  ? mark_held_locks+0x130/0x130
[  436.320380]  ? zap_class+0x640/0x640
[  436.324110]  ? zap_class+0x640/0x640
[  436.327844]  ? print_usage_bug+0xc0/0xc0
[  436.331904]  ? do_raw_spin_unlock+0xa7/0x330
[  436.336313]  ? zap_class+0x640/0x640
[  436.340032]  ? print_usage_bug+0xc0/0xc0
[  436.344099]  ? wq_watchdog_touch+0x9c/0xfe
[  436.348351]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.353890]  ? check_preemption_disabled+0x48/0x280
[  436.358918]  ? __lock_is_held+0xb5/0x140
[  436.363000]  __alloc_pages_nodemask+0xa80/0xde0
[  436.367694]  ? zap_class+0x640/0x640
[  436.371419]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  436.376445]  ? find_held_lock+0x36/0x1c0
[  436.380534]  ? ____cache_alloc_node+0x1c7/0x1e0
[  436.385207]  ? lock_downgrade+0x900/0x900
[  436.389364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.394923]  cache_grow_begin+0xa5/0x8c0
[  436.399002]  ? do_raw_spin_unlock+0xa7/0x330
[  436.403442]  fallback_alloc+0x204/0x2e0
[  436.407425]  ____cache_alloc_node+0x1c7/0x1e0
[  436.411924]  kmem_cache_alloc_node+0xe3/0x730
[  436.416417]  ? ipv6_get_ifaddr+0x42e/0x620
[  436.420677]  __alloc_skb+0x119/0x770
[  436.424400]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.429677]  ? netdev_alloc_frag+0x1f0/0x1f0
[  436.434087]  ? lock_downgrade+0x900/0x900
[  436.438244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.443800]  ? refcount_sub_and_test_checked+0x203/0x310
[  436.449251]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  436.454695]  ? addrconf_rs_timer+0x690/0x690
[  436.459112]  ndisc_alloc_skb+0x144/0x340
[  436.463204]  ndisc_send_rs+0x331/0x6e0
[  436.467116]  addrconf_rs_timer+0x314/0x690
[  436.471374]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  436.475618]  call_timer_fn+0x272/0x920
[  436.479512]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  436.483740]  ? process_timeout+0x40/0x40
[  436.487815]  ? mark_held_locks+0xc7/0x130
[  436.492000]  ? _raw_spin_unlock_irq+0x27/0x80
[  436.496493]  ? _raw_spin_unlock_irq+0x27/0x80
[  436.500983]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  436.505221]  ? lockdep_hardirqs_on+0x296/0x5b0
[  436.509816]  ? trace_hardirqs_on+0xbd/0x310
[  436.514131]  ? kasan_check_read+0x11/0x20
[  436.518285]  ? __run_timers+0x7da/0xc70
[  436.522254]  ? trace_hardirqs_off_caller+0x310/0x310
[  436.527354]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  436.531597]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  436.535821]  __run_timers+0x7e5/0xc70
[  436.539640]  ? timer_fixup_init+0x70/0x70
[  436.543807]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  436.548822]  ? zap_class+0x640/0x640
[  436.552566]  ? print_usage_bug+0xc0/0xc0
[  436.556693]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  436.561900]  ? find_held_lock+0x36/0x1c0
[  436.566027]  ? zap_class+0x640/0x640
[  436.569758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.575315]  ? check_preemption_disabled+0x48/0x280
[  436.580339]  ? __lock_is_held+0xb5/0x140
[  436.584401]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.589952]  ? check_preemption_disabled+0x48/0x280
[  436.594973]  run_timer_softirq+0x52/0xb0
[  436.599073]  ? rcu_read_lock_sched_held+0x14f/0x180
[  436.604107]  __do_softirq+0x308/0xb7e
[  436.607927]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  436.612424]  ? lock_downgrade+0x900/0x900
[  436.616578]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  436.621686]  ? pvclock_read_flags+0x160/0x160
[  436.626181]  ? lapic_next_event+0x5a/0x90
[  436.630337]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.635879]  ? kvm_clock_read+0x18/0x30
[  436.639871]  ? kvm_sched_clock_read+0x9/0x20
[  436.644325]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.649864]  ? check_preemption_disabled+0x48/0x280
[  436.654891]  irq_exit+0x17f/0x1c0
[  436.658350]  smp_apic_timer_interrupt+0x1cb/0x760
[  436.663194]  ? smp_call_function_single_interrupt+0x159/0x650
[  436.669084]  ? smp_call_function_single_interrupt+0x650/0x650
[  436.674969]  ? interrupt_entry+0xb5/0xc0
[  436.679043]  ? trace_hardirqs_off_caller+0xbb/0x310
[  436.684080]  ? trace_hardirqs_off_caller+0xbb/0x310
[  436.689110]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.693957]  ? trace_hardirqs_on_caller+0x310/0x310
[  436.698984]  ? trace_hardirqs_on_caller+0x310/0x310
[  436.704029]  ? task_prio+0x50/0x50
[  436.708024]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.713585]  ? check_preemption_disabled+0x48/0x280
[  436.718642]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.723491]  apic_timer_interrupt+0xf/0x20
[  436.727732]  </IRQ>
[  436.729984] RIP: 0010:dump_stack+0x358/0x39d
[  436.734421] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  436.753320] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  436.761036] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  436.768321] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  436.775586] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  436.782850] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  436.790113] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  436.797392]  ? dump_stack+0x34f/0x39d
[  436.801727]  ? dump_stack_print_info.cold.1+0x20/0x20
[  436.806936]  ? mark_held_locks+0x130/0x130
[  436.811654]  ? mark_held_locks+0x130/0x130
[  436.815892]  dump_header+0x27b/0xf72
[  436.819611]  ? pagefault_out_of_memory+0x197/0x197
[  436.824576]  ? __lock_acquire+0x62f/0x4c20
[  436.828824]  ? percpu_ref_get_many+0x240/0x240
[  436.833404]  ? print_usage_bug+0xc0/0xc0
[  436.837467]  ? zap_class+0x640/0x640
[  436.841197]  ? print_usage_bug+0xc0/0xc0
[  436.845258]  ? print_usage_bug+0xc0/0xc0
[  436.849321]  ? zap_class+0x640/0x640
[  436.853044]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.858583]  ? find_held_lock+0x36/0x1c0
[  436.862646]  ? mark_held_locks+0xc7/0x130
[  436.866800]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  436.871921]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  436.877032]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  436.881612]  ? trace_hardirqs_on+0xbd/0x310
[  436.885960]  ? kasan_check_read+0x11/0x20
[  436.890129]  ? ___ratelimit+0x3b4/0x672
[  436.894102]  ? trace_hardirqs_off_caller+0x310/0x310
[  436.899250]  ? trace_hardirqs_on+0x310/0x310
[  436.903770]  ? lock_downgrade+0x900/0x900
[  436.907922]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  436.913026]  ? ___ratelimit+0x3b9/0x672
[  436.916996]  ? idr_get_free+0xf70/0xf70
[  436.920968]  ? find_held_lock+0x36/0x1c0
[  436.925038]  oom_kill_process.cold.27+0x10/0x903
[  436.929796]  ? zap_class+0x640/0x640
[  436.933510]  ? check_preemption_disabled+0x48/0x280
[  436.938531]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  436.943461]  ? kasan_check_read+0x11/0x20
[  436.947613]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.952895]  ? oom_evaluate_task+0x540/0x540
[  436.957323]  ? find_held_lock+0x36/0x1c0
[  436.961395]  ? out_of_memory+0x974/0x1430
[  436.965545]  ? lock_downgrade+0x900/0x900
[  436.969694]  ? check_preemption_disabled+0x48/0x280
[  436.974712]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  436.979640]  ? kasan_check_read+0x11/0x20
[  436.983807]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.989080]  ? rcu_softirq_qs+0x20/0x20
[  436.993072]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.998610]  ? oom_evaluate_task+0x302/0x540
[  437.003039]  out_of_memory+0xa84/0x1430
[  437.007042]  ? oom_killer_disable+0x3a0/0x3a0
[  437.011542]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  437.016482]  ? __ww_mutex_check_waiters+0x160/0x160
[  437.021513]  __alloc_pages_slowpath+0x2354/0x2e10
[  437.026385]  ? warn_alloc+0x120/0x120
[  437.030197]  ? mark_held_locks+0x130/0x130
[  437.034531]  ? find_get_entry+0xaae/0x1120
[  437.038768]  ? filemap_map_pages+0x1a20/0x1a20
[  437.043350]  ? zap_class+0x640/0x640
[  437.047076]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.052624]  ? check_preemption_disabled+0x48/0x280
[  437.057649]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.063197]  ? should_fail+0x22d/0xd01
[  437.067090]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  437.072197]  ? zap_class+0x640/0x640
[  437.075929]  ? __lock_is_held+0xb5/0x140
[  437.080017]  ? mark_held_locks+0x130/0x130
[  437.084282]  ? lock_release+0xa00/0xa00
[  437.088260]  ? perf_trace_sched_process_exec+0x860/0x860
[  437.093717]  ? xa_load+0x2ba/0x460
[  437.097258]  ? lock_downgrade+0x900/0x900
[  437.101423]  ? __might_sleep+0x95/0x190
[  437.105490]  __alloc_pages_nodemask+0xa80/0xde0
[  437.110166]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  437.115204]  ? __page_cache_alloc+0x191/0x5c0
[  437.119701]  ? xa_load+0x2e1/0x460
[  437.123273]  ? xa_clear_mark+0x40/0x40
[  437.127161]  ? zap_class+0x640/0x640
[  437.130883]  ? zap_class+0x640/0x640
[  437.134597]  ? zap_class+0x640/0x640
[  437.138326]  ? __do_page_cache_readahead+0x663/0x810
[  437.143462]  ? find_held_lock+0x36/0x1c0
[  437.147539]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  437.153081]  alloc_pages_current+0x173/0x350
[  437.157498]  __page_cache_alloc+0x38c/0x5c0
[  437.161822]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  437.166748]  ? kasan_check_read+0x11/0x20
[  437.170908]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  437.176186]  ? generic_perform_write+0x6a0/0x6a0
[  437.180940]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.186490]  ? check_preemption_disabled+0x48/0x280
[  437.191510]  filemap_fault+0x1595/0x25f0
[  437.195580]  ? __lock_page_or_retry+0xa00/0xa00
[  437.200259]  ? mark_held_locks+0x130/0x130
[  437.204508]  ? filemap_map_pages+0xd6b/0x1a20
[  437.209017]  ? lock_downgrade+0x900/0x900
[  437.213176]  ? check_preemption_disabled+0x48/0x280
[  437.218201]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  437.223122]  ? kasan_check_read+0x11/0x20
[  437.227260]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  437.232550]  ? rcu_softirq_qs+0x20/0x20
[  437.236528]  ? filemap_map_pages+0xd92/0x1a20
[  437.241054]  ? find_get_entries_tag+0x1400/0x1400
[  437.245900]  ? debug_object_destroy+0x2b0/0x2b0
[  437.250567]  ? lock_pi_update_atomic+0x150/0x150
[  437.255316]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.260869]  ? lock_acquire+0x1ed/0x520
[  437.264839]  ? ext4_filemap_fault+0x7a/0xad
[  437.269175]  ? lock_release+0xa00/0xa00
[  437.273144]  ? perf_trace_sched_process_exec+0x860/0x860
[  437.278595]  ? print_usage_bug+0xc0/0xc0
[  437.282660]  ? print_usage_bug+0xc0/0xc0
[  437.286736]  ? down_read+0x8d/0x120
[  437.290365]  ? ext4_filemap_fault+0x7a/0xad
[  437.294712]  ? __down_interruptible+0x700/0x700
[  437.299390]  ext4_filemap_fault+0x82/0xad
[  437.303553]  __do_fault+0x100/0x6b0
[  437.307187]  ? pmd_devmap_trans_unstable+0x220/0x220
[  437.312293]  ? mark_held_locks+0x130/0x130
[  437.316573]  ? mark_held_locks+0x130/0x130
[  437.320822]  ? debug_smp_processor_id+0x1c/0x20
[  437.325493]  ? perf_trace_lock+0x14d/0x7a0
[  437.329745]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.335303]  __handle_mm_fault+0x3ea0/0x5be0
[  437.339720]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  437.344563]  ? lock_is_held_type+0x210/0x210
[  437.348979]  ? ksys_dup3+0x680/0x680
[  437.352735]  ? zap_class+0x640/0x640
[  437.356446]  ? zap_class+0x640/0x640
[  437.360170]  ? __x64_sys_futex+0x53e/0x6a0
[  437.364411]  ? find_held_lock+0x36/0x1c0
[  437.368479]  ? handle_mm_fault+0x42a/0xc70
[  437.372714]  ? lock_downgrade+0x900/0x900
[  437.376862]  ? check_preemption_disabled+0x48/0x280
[  437.381875]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  437.386803]  ? kasan_check_read+0x11/0x20
[  437.390948]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  437.396227]  ? rcu_softirq_qs+0x20/0x20
[  437.400202]  ? trace_hardirqs_off_caller+0x310/0x310
[  437.405324]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.410864]  ? check_preemption_disabled+0x48/0x280
[  437.415890]  handle_mm_fault+0x54f/0xc70
[  437.419986]  ? __handle_mm_fault+0x5be0/0x5be0
[  437.424614]  ? find_vma+0x34/0x190
[  437.428220]  __do_page_fault+0x5e8/0xe60
[  437.432296]  ? trace_hardirqs_off+0xb8/0x310
[  437.436716]  do_page_fault+0xf2/0x7e0
[  437.440530]  ? vmalloc_sync_all+0x30/0x30
[  437.444679]  ? error_entry+0x70/0xd0
[  437.448395]  ? trace_hardirqs_off_caller+0xbb/0x310
[  437.453414]  ? trace_hardirqs_on_caller+0xc0/0x310
[  437.458373]  ? syscall_return_slowpath+0x5e0/0x5e0
[  437.463305]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.468152]  ? trace_hardirqs_on_caller+0x310/0x310
[  437.473172]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  437.478637]  ? prepare_exit_to_usermode+0x291/0x3b0
[  437.483663]  ? page_fault+0x8/0x30
[  437.487210]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.492059]  ? page_fault+0x8/0x30
[  437.495600]  page_fault+0x1e/0x30
[  437.499055] RIP: 0033:0x40f9c0
[  437.502262] Code: Bad RIP value.
[  437.505629] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  437.510990] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  437.518268] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  437.525535] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  437.532809] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  437.540090] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  437.547382] warn_alloc_show_mem: 1 callbacks suppressed
[  437.547394] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  437.547395] Mem-Info:
[  437.547427] active_anon:54833 inactive_anon:712 isolated_anon:0
[  437.547427]  active_file:11 inactive_file:12 isolated_file:0
[  437.547427]  unevictable:0 dirty:0 writeback:0 unstable:0
[  437.547427]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  437.547427]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  437.547427]  free:13768 free_pcp:742 free_cma:0
[  437.552771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  437.559533] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  437.561933] Call Trace:
[  437.595405] 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
[  437.604760]  dump_stack+0x244/0x39d
[  437.632572] lowmem_reserve[]: 0 2818 6321 6321
[  437.635163]  ? dump_stack_print_info.cold.1+0x20/0x20
[  437.661249] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  437.664881]  warn_alloc.cold.116+0xb7/0x1bd
[  437.669616] lowmem_reserve[]: 0 0 3503 3503
[  437.674806]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  437.702543] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  437.706872]  ? lock_downgrade+0x900/0x900
[  437.711167] lowmem_reserve[]: 0 0 0 0
[  437.716048]  ? trace_hardirqs_off+0xb8/0x310
[  437.745185] 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
[  437.749343]  ? trace_hardirqs_off+0xb8/0x310
[  437.753119] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  437.757527]  __alloc_pages_slowpath+0x26e8/0x2e10
[  437.771045] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  437.775492]  ? warn_alloc+0x120/0x120
[  437.791137] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  437.795978]  ? print_usage_bug+0xc0/0xc0
[  437.811775] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  437.815568]  ? warn_alloc+0x120/0x120
[  437.824382] 782 total pagecache pages
[  437.828435]  ? warn_alloc+0x120/0x120
[  437.836992] 0 pages in swap cache
[  437.840790]  ? print_usage_bug+0xc0/0xc0
[  437.844580] Swap cache stats: add 0, delete 0, find 0/0
[  437.848374]  ? print_usage_bug+0xc0/0xc0
[  437.851805] Free swap  = 0kB
[  437.855863]  ? __lock_acquire+0x62f/0x4c20
[  437.861201] Total swap = 0kB
[  437.865256]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.868247] 1965979 pages RAM
[  437.872477]  ? should_fail+0x22d/0xd01
[  437.875475] 0 pages HighMem/MovableOnly
[  437.881006]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  437.884097] 342853 pages reserved
[  437.887979]  ? __lock_acquire+0x62f/0x4c20
[  437.891927] 0 pages cma reserved
[  437.897032]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  437.900520] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  437.904689]  ? __lock_acquire+0x62f/0x4c20
[  437.904705]  ? should_fail+0x22d/0xd01
[  437.908413] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  437.913230]  ? find_held_lock+0x36/0x1c0
[  437.913253]  ? mark_held_locks+0x130/0x130
[  437.919886] syz-fuzzer cpuset=/ mems_allowed=0
[  437.924123]  ? mark_held_locks+0x130/0x130
[  437.924141]  ? zap_class+0x640/0x640
[  437.959106]  ? mark_held_locks+0xc7/0x130
[  437.963255]  ? do_raw_spin_unlock+0xa7/0x330
[  437.967702]  ? zap_class+0x640/0x640
[  437.971416]  ? print_usage_bug+0xc0/0xc0
[  437.975482]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.981046]  ? check_preemption_disabled+0x48/0x280
[  437.986081]  ? __lock_is_held+0xb5/0x140
[  437.990155]  __alloc_pages_nodemask+0xa80/0xde0
[  437.994841]  ? zap_class+0x640/0x640
[  437.998555]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  438.003634]  ? find_held_lock+0x36/0x1c0
[  438.007716]  ? ____cache_alloc_node+0x1c7/0x1e0
[  438.012386]  ? lock_downgrade+0x900/0x900
[  438.016542]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.022082]  cache_grow_begin+0xa5/0x8c0
[  438.026141]  ? do_raw_spin_unlock+0xa7/0x330
[  438.030559]  fallback_alloc+0x204/0x2e0
[  438.034543]  ____cache_alloc_node+0x1c7/0x1e0
[  438.039054]  kmem_cache_alloc_node+0xe3/0x730
[  438.043548]  ? ipv6_get_ifaddr+0x42e/0x620
[  438.047795]  __alloc_skb+0x119/0x770
[  438.051507]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.056790]  ? netdev_alloc_frag+0x1f0/0x1f0
[  438.061205]  ? lock_downgrade+0x900/0x900
[  438.065357]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.070926]  ? refcount_sub_and_test_checked+0x203/0x310
[  438.076451]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  438.081919]  ? addrconf_rs_timer+0x690/0x690
[  438.086339]  ndisc_alloc_skb+0x144/0x340
[  438.090404]  ndisc_send_rs+0x331/0x6e0
[  438.094309]  addrconf_rs_timer+0x314/0x690
[  438.098566]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  438.102809]  call_timer_fn+0x272/0x920
[  438.106719]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  438.110953]  ? process_timeout+0x40/0x40
[  438.115038]  ? __run_timers+0x7da/0xc70
[  438.119034]  ? _raw_spin_unlock_irq+0x27/0x80
[  438.123526]  ? _raw_spin_unlock_irq+0x27/0x80
[  438.128039]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  438.132274]  ? lockdep_hardirqs_on+0x296/0x5b0
[  438.136863]  ? trace_hardirqs_on+0xbd/0x310
[  438.141184]  ? kasan_check_read+0x11/0x20
[  438.145328]  ? __run_timers+0x7da/0xc70
[  438.149306]  ? trace_hardirqs_off_caller+0x310/0x310
[  438.154411]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  438.158684]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  438.162916]  __run_timers+0x7e5/0xc70
[  438.166745]  ? timer_fixup_init+0x70/0x70
[  438.170895]  ? _raw_spin_unlock_irq+0x27/0x80
[  438.175410]  ? _raw_spin_unlock_irq+0x27/0x80
[  438.179927]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  438.184517]  ? trace_hardirqs_on+0xbd/0x310
[  438.188838]  ? kasan_check_read+0x11/0x20
[  438.192990]  ? finish_task_switch+0x1f4/0x910
[  438.197553]  ? trace_hardirqs_off_caller+0x310/0x310
[  438.202658]  ? compat_start_thread+0x80/0x80
[  438.207098]  ? pvclock_read_flags+0x160/0x160
[  438.211590]  ? __switch_to_asm+0x34/0x70
[  438.215657]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.221198]  ? check_preemption_disabled+0x48/0x280
[  438.226224]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  438.231762]  ? rcu_pm_notify+0xc0/0xc0
[  438.235651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.241207]  ? check_preemption_disabled+0x48/0x280
[  438.246232]  run_timer_softirq+0x52/0xb0
[  438.250313]  ? rcu_read_lock_sched_held+0x14f/0x180
[  438.255334]  __do_softirq+0x308/0xb7e
[  438.259139]  ? retint_kernel+0x2d/0x2d
[  438.263038]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  438.268141]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  438.273619]  ? trace_hardirqs_on+0x310/0x310
[  438.278041]  ? schedule+0x108/0x460
[  438.281673]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  438.286439]  ? trace_hardirqs_off+0xb8/0x310
[  438.290852]  ? smpboot_thread_fn+0x68b/0xa00
[  438.295314]  ? trace_hardirqs_on+0x310/0x310
[  438.299725]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.305258]  ? check_preemption_disabled+0x48/0x280
[  438.310339]  ? takeover_tasklets+0xa90/0xa90
[  438.314763]  run_ksoftirqd+0x5e/0x100
[  438.318566]  smpboot_thread_fn+0x68b/0xa00
[  438.322809]  ? sort_range+0x30/0x30
[  438.326471]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  438.331597]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.337152]  ? __kthread_parkme+0xfb/0x1a0
[  438.341403]  ? sort_range+0x30/0x30
[  438.345037]  kthread+0x35a/0x440
[  438.348442]  ? kthread_stop+0x900/0x900
[  438.352437]  ret_from_fork+0x3a/0x50
[  438.356174] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  438.356249] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  438.363111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  438.363117] Call Trace:
[  438.363124]  <IRQ>
[  438.363141]  dump_stack+0x244/0x39d
[  438.363160]  ? dump_stack_print_info.cold.1+0x20/0x20
[  438.369722] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  438.378993]  warn_alloc.cold.116+0xb7/0x1bd
[  438.381545] ksoftirqd/0 cpuset=/ mems_allowed=0
[  438.383690]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  438.416580]  ? lock_downgrade+0x900/0x900
[  438.420738]  ? trace_hardirqs_off+0xb8/0x310
[  438.425159]  ? trace_hardirqs_off+0xb8/0x310
[  438.429566]  ? noop_count+0x40/0x40
[  438.433221]  __alloc_pages_slowpath+0x26e8/0x2e10
[  438.438087]  ? check_usage+0x1aa/0x790
[  438.441984]  ? warn_alloc+0x120/0x120
[  438.445804]  ? warn_alloc+0x120/0x120
[  438.449621]  ? __bfs+0xb0/0x780
[  438.452942]  ? print_bfs_bug+0x80/0x80
[  438.456829]  ? warn_alloc+0x120/0x120
[  438.460637]  ? print_usage_bug+0xc0/0xc0
[  438.464744]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.470299]  ? should_fail+0x22d/0xd01
[  438.474192]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  438.480095]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  438.485218]  ? __lock_acquire+0x62f/0x4c20
[  438.489459]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  438.494564]  ? should_fail+0x22d/0xd01
[  438.498465]  ? mark_held_locks+0x130/0x130
[  438.502707]  ? mark_held_locks+0x130/0x130
[  438.506940]  ? print_usage_bug+0xc0/0xc0
[  438.511019]  ? find_held_lock+0x36/0x1c0
[  438.515086]  ? zap_class+0x640/0x640
[  438.518812]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.524359]  ? check_preemption_disabled+0x48/0x280
[  438.529389]  ? __lock_is_held+0xb5/0x140
[  438.533462]  __alloc_pages_nodemask+0xa80/0xde0
[  438.538136]  ? zap_class+0x640/0x640
[  438.541861]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  438.546893]  ? find_held_lock+0x36/0x1c0
[  438.550967]  ? ____cache_alloc_node+0x1c7/0x1e0
[  438.555639]  ? lock_downgrade+0x900/0x900
[  438.559818]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.565361]  cache_grow_begin+0xa5/0x8c0
[  438.569424]  ? do_raw_spin_unlock+0xa7/0x330
[  438.573844]  fallback_alloc+0x204/0x2e0
[  438.577830]  ____cache_alloc_node+0x1c7/0x1e0
[  438.582335]  kmem_cache_alloc_node+0xe3/0x730
[  438.586836]  ? mark_held_locks+0xc7/0x130
[  438.590995]  __alloc_skb+0x119/0x770
[  438.594727]  ? netdev_alloc_frag+0x1f0/0x1f0
[  438.599147]  ? do_raw_spin_trylock+0x270/0x270
[  438.603745]  ? kmem_cache_alloc_trace+0x353/0x750
[  438.608601]  ? queue_work_on+0x12c/0x1e0
[  438.612808]  ? switchdev_port_obj_del+0xdc/0x440
[  438.617590]  ? switchdev_trans_item_enqueue+0x260/0x260
[  438.622951]  ? mod_timer+0x631/0x1560
[  438.626754]  ? wake_up_klogd+0x180/0x180
[  438.630820]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  438.635916]  __br_mdb_notify+0x4ff/0x15d0
[  438.640083]  ? __br_mdb_add+0x7f0/0x7f0
[  438.644069]  ? zap_class+0x640/0x640
[  438.647798]  ? br_multicast_group_expired+0x96/0x610
[  438.652908]  br_mdb_notify+0x310/0x410
[  438.656801]  ? br_mdb_dump+0x27b0/0x27b0
[  438.660873]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.666429]  br_multicast_group_expired+0x1bc/0x610
[  438.671469]  ? br_mdb_free+0x80/0x80
[  438.675199]  call_timer_fn+0x272/0x920
[  438.679107]  ? br_mdb_free+0x80/0x80
[  438.682828]  ? process_timeout+0x40/0x40
[  438.686902]  ? mark_held_locks+0xc7/0x130
[  438.691071]  ? _raw_spin_unlock_irq+0x27/0x80
[  438.695593]  ? _raw_spin_unlock_irq+0x27/0x80
[  438.700090]  ? br_mdb_free+0x80/0x80
[  438.703813]  ? lockdep_hardirqs_on+0x296/0x5b0
[  438.708400]  ? trace_hardirqs_on+0xbd/0x310
[  438.712727]  ? kasan_check_read+0x11/0x20
[  438.716900]  ? __run_timers+0x7da/0xc70
[  438.720882]  ? trace_hardirqs_off_caller+0x310/0x310
[  438.725995]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  438.730262]  ? br_mdb_free+0x80/0x80
[  438.733990]  __run_timers+0x7e5/0xc70
[  438.737834]  ? timer_fixup_init+0x70/0x70
[  438.741987]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  438.747026]  ? zap_class+0x640/0x640
[  438.750751]  ? print_usage_bug+0xc0/0xc0
[  438.754822]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  438.760030]  ? find_held_lock+0x36/0x1c0
[  438.764104]  ? zap_class+0x640/0x640
[  438.767831]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.773372]  ? check_preemption_disabled+0x48/0x280
[  438.778401]  ? __lock_is_held+0xb5/0x140
[  438.782469]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.788007]  ? check_preemption_disabled+0x48/0x280
[  438.793061]  run_timer_softirq+0x52/0xb0
[  438.797153]  ? rcu_read_lock_sched_held+0x14f/0x180
[  438.802698]  __do_softirq+0x308/0xb7e
[  438.806504]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  438.811002]  ? lock_downgrade+0x900/0x900
[  438.815160]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  438.820272]  ? pvclock_read_flags+0x160/0x160
[  438.824771]  ? lapic_next_event+0x5a/0x90
[  438.828926]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.834472]  ? kvm_clock_read+0x18/0x30
[  438.838447]  ? kvm_sched_clock_read+0x9/0x20
[  438.842858]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.848788]  ? check_preemption_disabled+0x48/0x280
[  438.853830]  irq_exit+0x17f/0x1c0
[  438.857284]  smp_apic_timer_interrupt+0x1cb/0x760
[  438.862146]  ? smp_call_function_single_interrupt+0x159/0x650
[  438.868057]  ? smp_call_function_single_interrupt+0x650/0x650
[  438.873969]  ? interrupt_entry+0xb5/0xc0
[  438.878039]  ? trace_hardirqs_off_caller+0xbb/0x310
[  438.883062]  ? trace_hardirqs_off_caller+0xbb/0x310
[  438.888100]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  438.892978]  ? trace_hardirqs_on_caller+0x310/0x310
[  438.898004]  ? trace_hardirqs_on_caller+0x310/0x310
[  438.903038]  ? task_prio+0x50/0x50
[  438.906582]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.912129]  ? check_preemption_disabled+0x48/0x280
[  438.917156]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  438.922061]  apic_timer_interrupt+0xf/0x20
[  438.926295]  </IRQ>
[  438.928549] RIP: 0010:dump_stack+0x358/0x39d
[  438.932978] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  438.951898] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  438.959625] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  438.966916] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  438.974205] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  438.981473] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  438.988771] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  438.996087]  ? dump_stack+0x34f/0x39d
[  438.999937]  ? dump_stack_print_info.cold.1+0x20/0x20
[  439.005151]  ? mark_held_locks+0x130/0x130
[  439.009389]  ? mark_held_locks+0x130/0x130
[  439.013632]  dump_header+0x27b/0xf72
[  439.017363]  ? pagefault_out_of_memory+0x197/0x197
[  439.022320]  ? __lock_acquire+0x62f/0x4c20
[  439.026566]  ? percpu_ref_get_many+0x240/0x240
[  439.031170]  ? print_usage_bug+0xc0/0xc0
[  439.035260]  ? zap_class+0x640/0x640
[  439.038998]  ? print_usage_bug+0xc0/0xc0
[  439.043074]  ? print_usage_bug+0xc0/0xc0
[  439.047152]  ? zap_class+0x640/0x640
[  439.050874]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.056419]  ? find_held_lock+0x36/0x1c0
[  439.060498]  ? mark_held_locks+0xc7/0x130
[  439.064648]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  439.069764]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  439.074883]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  439.079473]  ? trace_hardirqs_on+0xbd/0x310
[  439.083817]  ? kasan_check_read+0x11/0x20
[  439.087967]  ? ___ratelimit+0x3b4/0x672
[  439.091997]  ? trace_hardirqs_off_caller+0x310/0x310
[  439.097137]  ? trace_hardirqs_on+0x310/0x310
[  439.101554]  ? lock_downgrade+0x900/0x900
[  439.105712]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  439.110822]  ? ___ratelimit+0x3b9/0x672
[  439.114809]  ? idr_get_free+0xf70/0xf70
[  439.118812]  ? find_held_lock+0x36/0x1c0
[  439.122891]  oom_kill_process.cold.27+0x10/0x903
[  439.127658]  ? zap_class+0x640/0x640
[  439.131382]  ? check_preemption_disabled+0x48/0x280
[  439.136416]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  439.141357]  ? kasan_check_read+0x11/0x20
[  439.145513]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.150804]  ? oom_evaluate_task+0x540/0x540
[  439.155230]  ? find_held_lock+0x36/0x1c0
[  439.159307]  ? out_of_memory+0x974/0x1430
[  439.163465]  ? lock_downgrade+0x900/0x900
[  439.167624]  ? check_preemption_disabled+0x48/0x280
[  439.172666]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  439.177605]  ? kasan_check_read+0x11/0x20
[  439.181764]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.187062]  ? rcu_softirq_qs+0x20/0x20
[  439.191065]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.196608]  ? oom_evaluate_task+0x302/0x540
[  439.201063]  out_of_memory+0xa84/0x1430
[  439.205068]  ? oom_killer_disable+0x3a0/0x3a0
[  439.209579]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  439.214524]  ? __ww_mutex_check_waiters+0x160/0x160
[  439.219565]  __alloc_pages_slowpath+0x2354/0x2e10
[  439.224449]  ? warn_alloc+0x120/0x120
[  439.228261]  ? mark_held_locks+0x130/0x130
[  439.232511]  ? find_get_entry+0xaae/0x1120
[  439.236767]  ? filemap_map_pages+0x1a20/0x1a20
[  439.241373]  ? zap_class+0x640/0x640
[  439.245105]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.250656]  ? check_preemption_disabled+0x48/0x280
[  439.255689]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.261241]  ? should_fail+0x22d/0xd01
[  439.265147]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  439.270267]  ? zap_class+0x640/0x640
[  439.274038]  ? __lock_is_held+0xb5/0x140
[  439.278122]  ? mark_held_locks+0x130/0x130
[  439.282374]  ? lock_release+0xa00/0xa00
[  439.286365]  ? perf_trace_sched_process_exec+0x860/0x860
[  439.291831]  ? xa_load+0x2ba/0x460
[  439.295390]  ? lock_downgrade+0x900/0x900
[  439.299555]  ? __might_sleep+0x95/0x190
[  439.303549]  __alloc_pages_nodemask+0xa80/0xde0
[  439.308239]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  439.313270]  ? __page_cache_alloc+0x191/0x5c0
[  439.317777]  ? xa_load+0x2e1/0x460
[  439.321338]  ? xa_clear_mark+0x40/0x40
[  439.325243]  ? zap_class+0x640/0x640
[  439.328976]  ? zap_class+0x640/0x640
[  439.332811]  ? zap_class+0x640/0x640
[  439.336541]  ? __do_page_cache_readahead+0x663/0x810
[  439.341673]  ? find_held_lock+0x36/0x1c0
[  439.345763]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  439.351339]  alloc_pages_current+0x173/0x350
[  439.355777]  __page_cache_alloc+0x38c/0x5c0
[  439.360122]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  439.365071]  ? kasan_check_read+0x11/0x20
[  439.369234]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.374529]  ? generic_perform_write+0x6a0/0x6a0
[  439.379305]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.384882]  ? check_preemption_disabled+0x48/0x280
[  439.389932]  filemap_fault+0x1595/0x25f0
[  439.394035]  ? __lock_page_or_retry+0xa00/0xa00
[  439.398720]  ? mark_held_locks+0x130/0x130
[  439.402975]  ? filemap_map_pages+0xd6b/0x1a20
[  439.407497]  ? lock_downgrade+0x900/0x900
[  439.411663]  ? check_preemption_disabled+0x48/0x280
[  439.416702]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  439.421649]  ? kasan_check_read+0x11/0x20
[  439.425816]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.431113]  ? rcu_softirq_qs+0x20/0x20
[  439.435116]  ? filemap_map_pages+0xd92/0x1a20
[  439.439639]  ? find_get_entries_tag+0x1400/0x1400
[  439.444502]  ? debug_object_destroy+0x2b0/0x2b0
[  439.449190]  ? lock_pi_update_atomic+0x150/0x150
[  439.454001]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.459586]  ? lock_acquire+0x1ed/0x520
[  439.463573]  ? ext4_filemap_fault+0x7a/0xad
[  439.467915]  ? lock_release+0xa00/0xa00
[  439.471951]  ? perf_trace_sched_process_exec+0x860/0x860
[  439.477429]  ? print_usage_bug+0xc0/0xc0
[  439.481511]  ? print_usage_bug+0xc0/0xc0
[  439.485599]  ? down_read+0x8d/0x120
[  439.489239]  ? ext4_filemap_fault+0x7a/0xad
[  439.493580]  ? __down_interruptible+0x700/0x700
[  439.498276]  ext4_filemap_fault+0x82/0xad
[  439.502442]  __do_fault+0x100/0x6b0
[  439.506095]  ? pmd_devmap_trans_unstable+0x220/0x220
[  439.511219]  ? mark_held_locks+0x130/0x130
[  439.515472]  ? mark_held_locks+0x130/0x130
[  439.519725]  ? debug_smp_processor_id+0x1c/0x20
[  439.524406]  ? perf_trace_lock+0x14d/0x7a0
[  439.528660]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.534219]  __handle_mm_fault+0x3ea0/0x5be0
[  439.538647]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  439.543505]  ? lock_is_held_type+0x210/0x210
[  439.547936]  ? ksys_dup3+0x680/0x680
[  439.551674]  ? zap_class+0x640/0x640
[  439.555398]  ? zap_class+0x640/0x640
[  439.559130]  ? __x64_sys_futex+0x53e/0x6a0
[  439.563382]  ? find_held_lock+0x36/0x1c0
[  439.567513]  ? handle_mm_fault+0x42a/0xc70
[  439.571763]  ? lock_downgrade+0x900/0x900
[  439.575935]  ? check_preemption_disabled+0x48/0x280
[  439.580968]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  439.585912]  ? kasan_check_read+0x11/0x20
[  439.590076]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.595366]  ? rcu_softirq_qs+0x20/0x20
[  439.599356]  ? trace_hardirqs_off_caller+0x310/0x310
[  439.604482]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.610053]  ? check_preemption_disabled+0x48/0x280
[  439.615095]  handle_mm_fault+0x54f/0xc70
[  439.619183]  ? __handle_mm_fault+0x5be0/0x5be0
[  439.623795]  ? find_vma+0x34/0x190
[  439.627408]  __do_page_fault+0x5e8/0xe60
[  439.631578]  ? trace_hardirqs_off+0xb8/0x310
[  439.636036]  do_page_fault+0xf2/0x7e0
[  439.639857]  ? vmalloc_sync_all+0x30/0x30
[  439.644040]  ? error_entry+0x70/0xd0
[  439.647770]  ? trace_hardirqs_off_caller+0xbb/0x310
[  439.652809]  ? trace_hardirqs_on_caller+0xc0/0x310
[  439.657753]  ? syscall_return_slowpath+0x5e0/0x5e0
[  439.662704]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  439.667949]  ? trace_hardirqs_on_caller+0x310/0x310
[  439.673074]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  439.678544]  ? prepare_exit_to_usermode+0x291/0x3b0
[  439.683573]  ? page_fault+0x8/0x30
[  439.687130]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  439.691992]  ? page_fault+0x8/0x30
[  439.695563]  page_fault+0x1e/0x30
[  439.699043] RIP: 0033:0x40f9c0
[  439.702265] Code: Bad RIP value.
[  439.705642] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  439.711034] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  439.718317] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  439.725601] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  439.732889] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  439.740176] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  439.747489] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  439.747504] warn_alloc_show_mem: 1 callbacks suppressed
[  439.747509] Mem-Info:
[  439.754280] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  439.759667] active_anon:54833 inactive_anon:712 isolated_anon:0
[  439.759667]  active_file:11 inactive_file:12 isolated_file:0
[  439.759667]  unevictable:0 dirty:0 writeback:0 unstable:0
[  439.759667]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  439.759667]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  439.759667]  free:13768 free_pcp:742 free_cma:0
[  439.762066] Call Trace:
[  439.771531] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  439.804423]  dump_stack+0x244/0x39d
[  439.807000] 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
[  439.834632]  ? dump_stack_print_info.cold.1+0x20/0x20
[  439.838251] lowmem_reserve[]: 0 2818 6321 6321
[  439.864392]  warn_alloc.cold.116+0xb7/0x1bd
[  439.869572] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  439.874166]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  439.878601] lowmem_reserve[]: 0 0 3503 3503
[  439.906439]  ? lock_downgrade+0x900/0x900
[  439.911279] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  439.915667]  ? trace_hardirqs_off+0xb8/0x310
[  439.919798] lowmem_reserve[]: 0 0 0 0
[  439.948974]  ? trace_hardirqs_off+0xb8/0x310
[  439.953374] 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
[  439.957229]  __alloc_pages_slowpath+0x26e8/0x2e10
[  439.961612] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  439.975201]  ? warn_alloc+0x120/0x120
[  439.980067] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  439.995766]  ? print_usage_bug+0xc0/0xc0
[  439.999556] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  440.014900]  ? warn_alloc+0x120/0x120
[  440.018953] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  440.027810]  ? warn_alloc+0x120/0x120
[  440.031608] 782 total pagecache pages
[  440.040191]  ? print_usage_bug+0xc0/0xc0
[  440.044044] 0 pages in swap cache
[  440.047844]  ? print_usage_bug+0xc0/0xc0
[  440.051929] Swap cache stats: add 0, delete 0, find 0/0
[  440.051939] Free swap  = 0kB
[  440.055395]  ? __lock_acquire+0x62f/0x4c20
[  440.059440] Total swap = 0kB
[  440.064807]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.067814] 1965979 pages RAM
[  440.072068]  ? should_fail+0x22d/0xd01
[  440.075071] 0 pages HighMem/MovableOnly
[  440.080609]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  440.083699] 342853 pages reserved
[  440.087589]  ? __lock_acquire+0x62f/0x4c20
[  440.091547] 0 pages cma reserved
[  440.096654]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  440.100801] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  440.104328]  ? __lock_acquire+0x62f/0x4c20
[  440.107680] syz-fuzzer cpuset=/ mems_allowed=0
[  440.112786]  ? should_fail+0x22d/0xd01
[  440.135710]  ? find_held_lock+0x36/0x1c0
[  440.139788]  ? mark_held_locks+0x130/0x130
[  440.144055]  ? mark_held_locks+0x130/0x130
[  440.148304]  ? zap_class+0x640/0x640
[  440.152051]  ? mark_held_locks+0xc7/0x130
[  440.156210]  ? do_raw_spin_unlock+0xa7/0x330
[  440.160633]  ? zap_class+0x640/0x640
[  440.164359]  ? print_usage_bug+0xc0/0xc0
[  440.168440]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.173995]  ? check_preemption_disabled+0x48/0x280
[  440.179076]  ? __lock_is_held+0xb5/0x140
[  440.183162]  __alloc_pages_nodemask+0xa80/0xde0
[  440.187852]  ? zap_class+0x640/0x640
[  440.191584]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  440.196623]  ? find_held_lock+0x36/0x1c0
[  440.200711]  ? ____cache_alloc_node+0x1c7/0x1e0
[  440.205399]  ? lock_downgrade+0x900/0x900
[  440.209569]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.215136]  cache_grow_begin+0xa5/0x8c0
[  440.219213]  ? do_raw_spin_unlock+0xa7/0x330
[  440.223645]  fallback_alloc+0x204/0x2e0
[  440.227640]  ____cache_alloc_node+0x1c7/0x1e0
[  440.232159]  kmem_cache_alloc_node+0xe3/0x730
[  440.236668]  ? ipv6_get_ifaddr+0x42e/0x620
[  440.240930]  __alloc_skb+0x119/0x770
[  440.244658]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.249955]  ? netdev_alloc_frag+0x1f0/0x1f0
[  440.254380]  ? lock_downgrade+0x900/0x900
[  440.258548]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.264104]  ? refcount_sub_and_test_checked+0x203/0x310
[  440.269569]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  440.275151]  ? addrconf_rs_timer+0x690/0x690
[  440.279590]  ndisc_alloc_skb+0x144/0x340
[  440.283671]  ndisc_send_rs+0x331/0x6e0
[  440.287576]  addrconf_rs_timer+0x314/0x690
[  440.291828]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.296090]  call_timer_fn+0x272/0x920
[  440.299986]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.304247]  ? process_timeout+0x40/0x40
[  440.308325]  ? __run_timers+0x7da/0xc70
[  440.312317]  ? _raw_spin_unlock_irq+0x27/0x80
[  440.316820]  ? _raw_spin_unlock_irq+0x27/0x80
[  440.321331]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.325581]  ? lockdep_hardirqs_on+0x296/0x5b0
[  440.330176]  ? trace_hardirqs_on+0xbd/0x310
[  440.334507]  ? kasan_check_read+0x11/0x20
[  440.338715]  ? __run_timers+0x7da/0xc70
[  440.342709]  ? trace_hardirqs_off_caller+0x310/0x310
[  440.347837]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.352098]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.356354]  __run_timers+0x7e5/0xc70
[  440.360179]  ? timer_fixup_init+0x70/0x70
[  440.364390]  ? _raw_spin_unlock_irq+0x27/0x80
[  440.368941]  ? _raw_spin_unlock_irq+0x27/0x80
[  440.373454]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  440.378062]  ? trace_hardirqs_on+0xbd/0x310
[  440.382397]  ? kasan_check_read+0x11/0x20
[  440.386564]  ? finish_task_switch+0x1f4/0x910
[  440.391076]  ? trace_hardirqs_off_caller+0x310/0x310
[  440.396191]  ? compat_start_thread+0x80/0x80
[  440.400680]  ? pvclock_read_flags+0x160/0x160
[  440.405190]  ? __switch_to_asm+0x34/0x70
[  440.409264]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.414819]  ? check_preemption_disabled+0x48/0x280
[  440.419857]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  440.425409]  ? rcu_pm_notify+0xc0/0xc0
[  440.429314]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.434974]  ? check_preemption_disabled+0x48/0x280
[  440.440006]  run_timer_softirq+0x52/0xb0
[  440.444144]  ? rcu_read_lock_sched_held+0x14f/0x180
[  440.449174]  __do_softirq+0x308/0xb7e
[  440.452991]  ? retint_kernel+0x2d/0x2d
[  440.456916]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  440.462050]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  440.467514]  ? trace_hardirqs_on+0x310/0x310
[  440.471987]  ? schedule+0x108/0x460
[  440.475645]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  440.480419]  ? trace_hardirqs_off+0xb8/0x310
[  440.484838]  ? smpboot_thread_fn+0x68b/0xa00
[  440.489258]  ? trace_hardirqs_on+0x310/0x310
[  440.493685]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.499233]  ? check_preemption_disabled+0x48/0x280
[  440.504264]  ? takeover_tasklets+0xa90/0xa90
[  440.508694]  run_ksoftirqd+0x5e/0x100
[  440.512509]  smpboot_thread_fn+0x68b/0xa00
[  440.516761]  ? sort_range+0x30/0x30
[  440.520402]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  440.525515]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.531075]  ? __kthread_parkme+0xfb/0x1a0
[  440.535371]  ? sort_range+0x30/0x30
[  440.539030]  kthread+0x35a/0x440
[  440.542466]  ? kthread_stop+0x900/0x900
[  440.546456]  ret_from_fork+0x3a/0x50
[  440.550198] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  440.550273] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  440.557140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  440.557149] Call Trace:
[  440.563769] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  440.572994]  <IRQ>
[  440.575597] ksoftirqd/0 cpuset=/ mems_allowed=0
[  440.585934]  dump_stack+0x244/0x39d
[  440.596389]  ? dump_stack_print_info.cold.1+0x20/0x20
[  440.601607]  warn_alloc.cold.116+0xb7/0x1bd
[  440.605941]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  440.610805]  ? lock_downgrade+0x900/0x900
[  440.614978]  ? trace_hardirqs_off+0xb8/0x310
[  440.619421]  ? trace_hardirqs_off+0xb8/0x310
[  440.623852]  __alloc_pages_slowpath+0x26e8/0x2e10
[  440.628734]  ? warn_alloc+0x120/0x120
[  440.632560]  ? warn_alloc+0x120/0x120
[  440.636374]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  440.641407]  ? warn_alloc+0x120/0x120
[  440.645226]  ? print_usage_bug+0xc0/0xc0
[  440.649304]  ? print_usage_bug+0xc0/0xc0
[  440.653377]  ? check_usage+0x1aa/0x790
[  440.657281]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.662830]  ? should_fail+0x22d/0xd01
[  440.666729]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  440.672625]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  440.677741]  ? __lock_acquire+0x62f/0x4c20
[  440.681988]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  440.687121]  ? should_fail+0x22d/0xd01
[  440.691047]  ? mark_held_locks+0x130/0x130
[  440.695295]  ? mark_held_locks+0x130/0x130
[  440.699542]  ? print_usage_bug+0xc0/0xc0
[  440.703616]  ? find_held_lock+0x36/0x1c0
[  440.707689]  ? zap_class+0x640/0x640
[  440.711422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.716970]  ? check_preemption_disabled+0x48/0x280
[  440.722007]  ? __lock_is_held+0xb5/0x140
[  440.726108]  __alloc_pages_nodemask+0xa80/0xde0
[  440.730791]  ? zap_class+0x640/0x640
[  440.734521]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  440.739561]  ? find_held_lock+0x36/0x1c0
[  440.743644]  ? ____cache_alloc_node+0x1c7/0x1e0
[  440.748324]  ? lock_downgrade+0x900/0x900
[  440.752497]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.758071]  cache_grow_begin+0xa5/0x8c0
[  440.762142]  ? do_raw_spin_unlock+0xa7/0x330
[  440.766567]  fallback_alloc+0x204/0x2e0
[  440.770561]  ____cache_alloc_node+0x1c7/0x1e0
[  440.775078]  kmem_cache_alloc_node+0xe3/0x730
[  440.779585]  ? mark_held_locks+0xc7/0x130
[  440.783752]  __alloc_skb+0x119/0x770
[  440.787535]  ? netdev_alloc_frag+0x1f0/0x1f0
[  440.791953]  ? do_raw_spin_trylock+0x270/0x270
[  440.796548]  ? kmem_cache_alloc_trace+0x353/0x750
[  440.801940]  ? queue_work_on+0x12c/0x1e0
[  440.806137]  ? switchdev_port_obj_del+0xdc/0x440
[  440.810952]  ? switchdev_trans_item_enqueue+0x260/0x260
[  440.816332]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  440.821366]  __br_mdb_notify+0x4ff/0x15d0
[  440.825533]  ? __br_mdb_add+0x7f0/0x7f0
[  440.829533]  ? zap_class+0x640/0x640
[  440.833267]  ? br_multicast_group_expired+0x96/0x610
[  440.838386]  ? lock_downgrade+0x900/0x900
[  440.842553]  br_mdb_notify+0x310/0x410
[  440.846456]  ? br_mdb_dump+0x27b0/0x27b0
[  440.850534]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.856097]  br_multicast_group_expired+0x1bc/0x610
[  440.861138]  ? br_mdb_free+0x80/0x80
[  440.864876]  call_timer_fn+0x272/0x920
[  440.868774]  ? br_mdb_free+0x80/0x80
[  440.872507]  ? process_timeout+0x40/0x40
[  440.876592]  ? mark_held_locks+0xc7/0x130
[  440.880751]  ? _raw_spin_unlock_irq+0x27/0x80
[  440.885259]  ? _raw_spin_unlock_irq+0x27/0x80
[  440.889768]  ? br_mdb_free+0x80/0x80
[  440.893500]  ? lockdep_hardirqs_on+0x296/0x5b0
[  440.898097]  ? trace_hardirqs_on+0xbd/0x310
[  440.902438]  ? kasan_check_read+0x11/0x20
[  440.906594]  ? __run_timers+0x7da/0xc70
[  440.910585]  ? trace_hardirqs_off_caller+0x310/0x310
[  440.915706]  ? br_mdb_free+0x80/0x80
[  440.919445]  ? br_mdb_free+0x80/0x80
[  440.923171]  __run_timers+0x7e5/0xc70
[  440.926998]  ? timer_fixup_init+0x70/0x70
[  440.931189]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  440.936226]  ? zap_class+0x640/0x640
[  440.939966]  ? print_usage_bug+0xc0/0xc0
[  440.944062]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  440.949279]  ? find_held_lock+0x36/0x1c0
[  440.953358]  ? zap_class+0x640/0x640
[  440.957145]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.962698]  ? check_preemption_disabled+0x48/0x280
[  440.967737]  ? __lock_is_held+0xb5/0x140
[  440.971814]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.977368]  ? check_preemption_disabled+0x48/0x280
[  440.982403]  run_timer_softirq+0x52/0xb0
[  440.986479]  ? rcu_read_lock_sched_held+0x14f/0x180
[  440.991509]  __do_softirq+0x308/0xb7e
[  440.995324]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  440.999828]  ? lock_downgrade+0x900/0x900
[  441.003991]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  441.009137]  ? pvclock_read_flags+0x160/0x160
[  441.013648]  ? lapic_next_event+0x5a/0x90
[  441.017813]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.023368]  ? kvm_clock_read+0x18/0x30
[  441.027353]  ? kvm_sched_clock_read+0x9/0x20
[  441.031771]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.037329]  ? check_preemption_disabled+0x48/0x280
[  441.042365]  irq_exit+0x17f/0x1c0
[  441.045832]  smp_apic_timer_interrupt+0x1cb/0x760
[  441.050686]  ? smp_call_function_single_interrupt+0x159/0x650
[  441.056580]  ? smp_call_function_single_interrupt+0x650/0x650
[  441.062475]  ? interrupt_entry+0xb5/0xc0
[  441.066554]  ? trace_hardirqs_off_caller+0xbb/0x310
[  441.071580]  ? trace_hardirqs_off_caller+0xbb/0x310
[  441.076607]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  441.081460]  ? trace_hardirqs_on_caller+0x310/0x310
[  441.086486]  ? trace_hardirqs_on_caller+0x310/0x310
[  441.091515]  ? task_prio+0x50/0x50
[  441.095075]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.100624]  ? check_preemption_disabled+0x48/0x280
[  441.105658]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  441.111219]  apic_timer_interrupt+0xf/0x20
[  441.115457]  </IRQ>
[  441.117710] RIP: 0010:dump_stack+0x358/0x39d
[  441.122132] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  441.141061] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  441.148789] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  441.156071] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  441.163347] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  441.170624] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  441.177900] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  441.185205]  ? dump_stack+0x34f/0x39d
[  441.189053]  ? dump_stack_print_info.cold.1+0x20/0x20
[  441.194266]  ? mark_held_locks+0x130/0x130
[  441.198515]  ? mark_held_locks+0x130/0x130
[  441.202773]  dump_header+0x27b/0xf72
[  441.206519]  ? pagefault_out_of_memory+0x197/0x197
[  441.211559]  ? __lock_acquire+0x62f/0x4c20
[  441.215810]  ? percpu_ref_get_many+0x240/0x240
[  441.220410]  ? print_usage_bug+0xc0/0xc0
[  441.224487]  ? zap_class+0x640/0x640
[  441.228219]  ? print_usage_bug+0xc0/0xc0
[  441.232291]  ? print_usage_bug+0xc0/0xc0
[  441.236368]  ? zap_class+0x640/0x640
[  441.240099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.245652]  ? find_held_lock+0x36/0x1c0
[  441.249735]  ? mark_held_locks+0xc7/0x130
[  441.253898]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  441.259030]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  441.264147]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  441.268744]  ? trace_hardirqs_on+0xbd/0x310
[  441.273082]  ? kasan_check_read+0x11/0x20
[  441.277241]  ? ___ratelimit+0x3b4/0x672
[  441.281228]  ? trace_hardirqs_off_caller+0x310/0x310
[  441.286347]  ? trace_hardirqs_on+0x310/0x310
[  441.290773]  ? lock_downgrade+0x900/0x900
[  441.294971]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  441.300087]  ? ___ratelimit+0x3b9/0x672
[  441.304077]  ? idr_get_free+0xf70/0xf70
[  441.308072]  ? find_held_lock+0x36/0x1c0
[  441.312154]  oom_kill_process.cold.27+0x10/0x903
[  441.316921]  ? zap_class+0x640/0x640
[  441.320648]  ? check_preemption_disabled+0x48/0x280
[  441.325689]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  441.330629]  ? kasan_check_read+0x11/0x20
[  441.334792]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.340084]  ? oom_evaluate_task+0x540/0x540
[  441.344510]  ? find_held_lock+0x36/0x1c0
[  441.348589]  ? out_of_memory+0x974/0x1430
[  441.352752]  ? lock_downgrade+0x900/0x900
[  441.356915]  ? check_preemption_disabled+0x48/0x280
[  441.361944]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  441.366885]  ? kasan_check_read+0x11/0x20
[  441.371064]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.376349]  ? rcu_softirq_qs+0x20/0x20
[  441.380339]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.385889]  ? oom_evaluate_task+0x302/0x540
[  441.390314]  out_of_memory+0xa84/0x1430
[  441.394308]  ? oom_killer_disable+0x3a0/0x3a0
[  441.398819]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  441.403770]  ? __ww_mutex_check_waiters+0x160/0x160
[  441.408819]  __alloc_pages_slowpath+0x2354/0x2e10
[  441.413701]  ? warn_alloc+0x120/0x120
[  441.417557]  ? mark_held_locks+0x130/0x130
[  441.421813]  ? find_get_entry+0xaae/0x1120
[  441.426088]  ? filemap_map_pages+0x1a20/0x1a20
[  441.430690]  ? zap_class+0x640/0x640
[  441.434423]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.439979]  ? check_preemption_disabled+0x48/0x280
[  441.445048]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.450612]  ? should_fail+0x22d/0xd01
[  441.454526]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  441.459650]  ? zap_class+0x640/0x640
[  441.463405]  ? __lock_is_held+0xb5/0x140
[  441.467489]  ? mark_held_locks+0x130/0x130
[  441.471741]  ? lock_release+0xa00/0xa00
[  441.475726]  ? perf_trace_sched_process_exec+0x860/0x860
[  441.481191]  ? xa_load+0x2ba/0x460
[  441.484745]  ? lock_downgrade+0x900/0x900
[  441.488909]  ? __might_sleep+0x95/0x190
[  441.492906]  __alloc_pages_nodemask+0xa80/0xde0
[  441.497594]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  441.502626]  ? __page_cache_alloc+0x191/0x5c0
[  441.507144]  ? xa_load+0x2e1/0x460
[  441.510698]  ? xa_clear_mark+0x40/0x40
[  441.514601]  ? zap_class+0x640/0x640
[  441.518331]  ? zap_class+0x640/0x640
[  441.522064]  ? zap_class+0x640/0x640
[  441.525795]  ? __do_page_cache_readahead+0x663/0x810
[  441.530916]  ? find_held_lock+0x36/0x1c0
[  441.534991]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  441.540566]  alloc_pages_current+0x173/0x350
[  441.544994]  __page_cache_alloc+0x38c/0x5c0
[  441.549341]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  441.554283]  ? kasan_check_read+0x11/0x20
[  441.558442]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.563733]  ? generic_perform_write+0x6a0/0x6a0
[  441.568500]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.574064]  ? check_preemption_disabled+0x48/0x280
[  441.579102]  filemap_fault+0x1595/0x25f0
[  441.583189]  ? __lock_page_or_retry+0xa00/0xa00
[  441.587872]  ? mark_held_locks+0x130/0x130
[  441.592128]  ? filemap_map_pages+0xd6b/0x1a20
[  441.596633]  ? lock_downgrade+0x900/0x900
[  441.600798]  ? check_preemption_disabled+0x48/0x280
[  441.605829]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  441.610768]  ? kasan_check_read+0x11/0x20
[  441.614931]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.620217]  ? rcu_softirq_qs+0x20/0x20
[  441.624220]  ? filemap_map_pages+0xd92/0x1a20
[  441.628740]  ? find_get_entries_tag+0x1400/0x1400
[  441.633596]  ? debug_object_destroy+0x2b0/0x2b0
[  441.638279]  ? lock_pi_update_atomic+0x150/0x150
[  441.643062]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.648623]  ? lock_acquire+0x1ed/0x520
[  441.652605]  ? ext4_filemap_fault+0x7a/0xad
[  441.656946]  ? lock_release+0xa00/0xa00
[  441.660928]  ? perf_trace_sched_process_exec+0x860/0x860
[  441.666390]  ? print_usage_bug+0xc0/0xc0
[  441.670899]  ? print_usage_bug+0xc0/0xc0
[  441.674983]  ? down_read+0x8d/0x120
[  441.678635]  ? ext4_filemap_fault+0x7a/0xad
[  441.682970]  ? __down_interruptible+0x700/0x700
[  441.687661]  ext4_filemap_fault+0x82/0xad
[  441.691823]  __do_fault+0x100/0x6b0
[  441.695466]  ? pmd_devmap_trans_unstable+0x220/0x220
[  441.700580]  ? mark_held_locks+0x130/0x130
[  441.704829]  ? mark_held_locks+0x130/0x130
[  441.709081]  ? debug_smp_processor_id+0x1c/0x20
[  441.713760]  ? perf_trace_lock+0x14d/0x7a0
[  441.718038]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.723679]  __handle_mm_fault+0x3ea0/0x5be0
[  441.728108]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  441.732963]  ? lock_is_held_type+0x210/0x210
[  441.737391]  ? ksys_dup3+0x680/0x680
[  441.741131]  ? zap_class+0x640/0x640
[  441.744856]  ? zap_class+0x640/0x640
[  441.748579]  ? __x64_sys_futex+0x53e/0x6a0
[  441.752832]  ? find_held_lock+0x36/0x1c0
[  441.756915]  ? handle_mm_fault+0x42a/0xc70
[  441.761162]  ? lock_downgrade+0x900/0x900
[  441.765321]  ? check_preemption_disabled+0x48/0x280
[  441.770352]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  441.775290]  ? kasan_check_read+0x11/0x20
[  441.779448]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.784737]  ? rcu_softirq_qs+0x20/0x20
[  441.788720]  ? trace_hardirqs_off_caller+0x310/0x310
[  441.793836]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.799487]  ? check_preemption_disabled+0x48/0x280
[  441.804522]  handle_mm_fault+0x54f/0xc70
[  441.808598]  ? __handle_mm_fault+0x5be0/0x5be0
[  441.813198]  ? find_vma+0x34/0x190
[  441.816752]  __do_page_fault+0x5e8/0xe60
[  441.820826]  ? trace_hardirqs_off+0xb8/0x310
[  441.825255]  do_page_fault+0xf2/0x7e0
[  441.829083]  ? vmalloc_sync_all+0x30/0x30
[  441.833244]  ? error_entry+0x70/0xd0
[  441.836971]  ? trace_hardirqs_off_caller+0xbb/0x310
[  441.841993]  ? trace_hardirqs_on_caller+0xc0/0x310
[  441.846953]  ? syscall_return_slowpath+0x5e0/0x5e0
[  441.851891]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  441.856744]  ? trace_hardirqs_on_caller+0x310/0x310
[  441.861770]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  441.867289]  ? prepare_exit_to_usermode+0x291/0x3b0
[  441.872317]  ? page_fault+0x8/0x30
[  441.875874]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  441.880732]  ? page_fault+0x8/0x30
[  441.884282]  page_fault+0x1e/0x30
[  441.887744] RIP: 0033:0x40f9c0
[  441.890957] Code: Bad RIP value.
[  441.894327] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  441.899696] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  441.906975] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  441.914250] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  441.921528] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  441.928809] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  441.936107] warn_alloc_show_mem: 1 callbacks suppressed
[  441.936119] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  441.936120] Mem-Info:
[  441.936151] active_anon:54833 inactive_anon:712 isolated_anon:0
[  441.936151]  active_file:11 inactive_file:12 isolated_file:0
[  441.936151]  unevictable:0 dirty:0 writeback:0 unstable:0
[  441.936151]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  441.936151]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  441.936151]  free:13768 free_pcp:742 free_cma:0
[  441.941506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  441.948277] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  441.950683] Call Trace:
[  441.983606] 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
[  441.992980]  dump_stack+0x244/0x39d
[  442.020544] lowmem_reserve[]: 0 2818 6321 6321
[  442.023163]  ? dump_stack_print_info.cold.1+0x20/0x20
[  442.049254] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  442.052904]  warn_alloc.cold.116+0xb7/0x1bd
[  442.057460] lowmem_reserve[]: 0 0 3503 3503
[  442.062740]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  442.090490] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  442.094826]  ? lock_downgrade+0x900/0x900
[  442.099136] lowmem_reserve[]: 0 0 0 0
[  442.103988]  ? trace_hardirqs_off+0xb8/0x310
[  442.133124] 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
[  442.137293]  ? trace_hardirqs_off+0xb8/0x310
[  442.141073] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  442.145490]  __alloc_pages_slowpath+0x26e8/0x2e10
[  442.158995] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  442.163448]  ? warn_alloc+0x120/0x120
[  442.179116] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  442.183958]  ? print_usage_bug+0xc0/0xc0
[  442.199284] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  442.199290] 782 total pagecache pages
[  442.199309] 0 pages in swap cache
[  442.203128]  ? warn_alloc+0x120/0x120
[  442.211957] Swap cache stats: add 0, delete 0, find 0/0
[  442.216034]  ? warn_alloc+0x120/0x120
[  442.224593] Free swap  = 0kB
[  442.228399]  ? print_usage_bug+0xc0/0xc0
[  442.231839] Total swap = 0kB
[  442.235651]  ? print_usage_bug+0xc0/0xc0
[  442.241029] 1965979 pages RAM
[  442.244833]  ? __lock_acquire+0x62f/0x4c20
[  442.247837] 0 pages HighMem/MovableOnly
[  442.251906]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.254901] 342853 pages reserved
[  442.254910] 0 pages cma reserved
[  442.258979]  ? should_fail+0x22d/0xd01
[  442.262220] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  442.266314]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  442.270279] syz-fuzzer cpuset=/ mems_allowed=0
[  442.275841]  ? __lock_acquire+0x62f/0x4c20
[  442.310660]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  442.315773]  ? __lock_acquire+0x62f/0x4c20
[  442.320039]  ? should_fail+0x22d/0xd01
[  442.323938]  ? find_held_lock+0x36/0x1c0
[  442.328037]  ? mark_held_locks+0x130/0x130
[  442.332299]  ? mark_held_locks+0x130/0x130
[  442.336544]  ? zap_class+0x640/0x640
[  442.340274]  ? mark_held_locks+0xc7/0x130
[  442.344436]  ? do_raw_spin_unlock+0xa7/0x330
[  442.348854]  ? zap_class+0x640/0x640
[  442.352576]  ? print_usage_bug+0xc0/0xc0
[  442.356652]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.362203]  ? check_preemption_disabled+0x48/0x280
[  442.367237]  ? __lock_is_held+0xb5/0x140
[  442.371327]  __alloc_pages_nodemask+0xa80/0xde0
[  442.376036]  ? zap_class+0x640/0x640
[  442.379769]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  442.384807]  ? find_held_lock+0x36/0x1c0
[  442.388888]  ? ____cache_alloc_node+0x1c7/0x1e0
[  442.393565]  ? lock_downgrade+0x900/0x900
[  442.397733]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.403295]  cache_grow_begin+0xa5/0x8c0
[  442.407365]  ? do_raw_spin_unlock+0xa7/0x330
[  442.411792]  fallback_alloc+0x204/0x2e0
[  442.415783]  ____cache_alloc_node+0x1c7/0x1e0
[  442.420300]  kmem_cache_alloc_node+0xe3/0x730
[  442.424811]  ? ipv6_get_ifaddr+0x42e/0x620
[  442.429085]  __alloc_skb+0x119/0x770
[  442.432815]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  442.438106]  ? netdev_alloc_frag+0x1f0/0x1f0
[  442.442526]  ? lock_downgrade+0x900/0x900
[  442.446691]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.452241]  ? refcount_sub_and_test_checked+0x203/0x310
[  442.457707]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  442.463170]  ? addrconf_rs_timer+0x690/0x690
[  442.467608]  ndisc_alloc_skb+0x144/0x340
[  442.471782]  ndisc_send_rs+0x331/0x6e0
[  442.475689]  addrconf_rs_timer+0x314/0x690
[  442.479940]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  442.484195]  call_timer_fn+0x272/0x920
[  442.488099]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  442.492348]  ? process_timeout+0x40/0x40
[  442.496426]  ? __run_timers+0x7da/0xc70
[  442.500411]  ? _raw_spin_unlock_irq+0x27/0x80
[  442.504916]  ? _raw_spin_unlock_irq+0x27/0x80
[  442.509420]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  442.513663]  ? lockdep_hardirqs_on+0x296/0x5b0
[  442.518259]  ? trace_hardirqs_on+0xbd/0x310
[  442.522600]  ? kasan_check_read+0x11/0x20
[  442.526759]  ? __run_timers+0x7da/0xc70
[  442.530745]  ? trace_hardirqs_off_caller+0x310/0x310
[  442.535867]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  442.540118]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  442.544368]  __run_timers+0x7e5/0xc70
[  442.548190]  ? timer_fixup_init+0x70/0x70
[  442.552348]  ? _raw_spin_unlock_irq+0x27/0x80
[  442.556853]  ? _raw_spin_unlock_irq+0x27/0x80
[  442.561365]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  442.565959]  ? trace_hardirqs_on+0xbd/0x310
[  442.570298]  ? kasan_check_read+0x11/0x20
[  442.574461]  ? finish_task_switch+0x1f4/0x910
[  442.578965]  ? trace_hardirqs_off_caller+0x310/0x310
[  442.584085]  ? compat_start_thread+0x80/0x80
[  442.588526]  ? pvclock_read_flags+0x160/0x160
[  442.593044]  ? __switch_to_asm+0x34/0x70
[  442.597120]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.602671]  ? check_preemption_disabled+0x48/0x280
[  442.607705]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  442.613257]  ? rcu_pm_notify+0xc0/0xc0
[  442.617165]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.622715]  ? check_preemption_disabled+0x48/0x280
[  442.627746]  run_timer_softirq+0x52/0xb0
[  442.631816]  ? rcu_read_lock_sched_held+0x14f/0x180
[  442.636845]  __do_softirq+0x308/0xb7e
[  442.640661]  ? retint_kernel+0x2d/0x2d
[  442.644564]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  442.649683]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  442.655146]  ? trace_hardirqs_on+0x310/0x310
[  442.659570]  ? schedule+0x108/0x460
[  442.663207]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  442.667991]  ? trace_hardirqs_off+0xb8/0x310
[  442.672438]  ? smpboot_thread_fn+0x68b/0xa00
[  442.676856]  ? trace_hardirqs_on+0x310/0x310
[  442.681279]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.686833]  ? check_preemption_disabled+0x48/0x280
[  442.691861]  ? takeover_tasklets+0xa90/0xa90
[  442.696290]  run_ksoftirqd+0x5e/0x100
[  442.700105]  smpboot_thread_fn+0x68b/0xa00
[  442.704353]  ? sort_range+0x30/0x30
[  442.707988]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  442.713124]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.718673]  ? __kthread_parkme+0xfb/0x1a0
[  442.722924]  ? sort_range+0x30/0x30
[  442.726565]  kthread+0x35a/0x440
[  442.729945]  ? kthread_stop+0x900/0x900
[  442.733932]  ret_from_fork+0x3a/0x50
[  442.737722] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  442.737798] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  442.744662] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  442.744667] Call Trace:
[  442.744674]  <IRQ>
[  442.744693]  dump_stack+0x244/0x39d
[  442.744711]  ? dump_stack_print_info.cold.1+0x20/0x20
[  442.751292] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  442.760567]  warn_alloc.cold.116+0xb7/0x1bd
[  442.763128] ksoftirqd/0 cpuset=/ mems_allowed=0
[  442.765281]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  442.798868]  ? lock_downgrade+0x900/0x900
[  442.803055]  ? trace_hardirqs_off+0xb8/0x310
[  442.807484]  ? trace_hardirqs_off+0xb8/0x310
[  442.811912]  __alloc_pages_slowpath+0x26e8/0x2e10
[  442.816800]  ? warn_alloc+0x120/0x120
[  442.820617]  ? warn_alloc+0x120/0x120
[  442.824432]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  442.829463]  ? warn_alloc+0x120/0x120
[  442.833279]  ? print_usage_bug+0xc0/0xc0
[  442.837355]  ? print_usage_bug+0xc0/0xc0
[  442.841422]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  442.846633]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.852184]  ? should_fail+0x22d/0xd01
[  442.856086]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  442.861200]  ? __lock_acquire+0x62f/0x4c20
[  442.865448]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  442.870562]  ? should_fail+0x22d/0xd01
[  442.874472]  ? mark_held_locks+0x130/0x130
[  442.878722]  ? mark_held_locks+0x130/0x130
[  442.882964]  ? print_usage_bug+0xc0/0xc0
[  442.887055]  ? find_held_lock+0x36/0x1c0
[  442.891131]  ? zap_class+0x640/0x640
[  442.894882]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.900429]  ? check_preemption_disabled+0x48/0x280
[  442.905464]  ? __lock_is_held+0xb5/0x140
[  442.909540]  __alloc_pages_nodemask+0xa80/0xde0
[  442.914220]  ? zap_class+0x640/0x640
[  442.917948]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  442.922986]  ? find_held_lock+0x36/0x1c0
[  442.927091]  ? ____cache_alloc_node+0x1c7/0x1e0
[  442.931771]  ? lock_downgrade+0x900/0x900
[  442.935941]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.941492]  cache_grow_begin+0xa5/0x8c0
[  442.945560]  ? do_raw_spin_unlock+0xa7/0x330
[  442.949987]  fallback_alloc+0x204/0x2e0
[  442.953998]  ____cache_alloc_node+0x1c7/0x1e0
[  442.958533]  kmem_cache_alloc_node+0xe3/0x730
[  442.963059]  ? mark_held_locks+0xc7/0x130
[  442.967247]  __alloc_skb+0x119/0x770
[  442.970978]  ? netdev_alloc_frag+0x1f0/0x1f0
[  442.975412]  ? do_raw_spin_trylock+0x270/0x270
[  442.980003]  ? kmem_cache_alloc_trace+0x353/0x750
[  442.984883]  ? queue_work_on+0x12c/0x1e0
[  442.988962]  ? switchdev_port_obj_del+0xdc/0x440
[  442.993731]  ? switchdev_trans_item_enqueue+0x260/0x260
[  442.999109]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  443.004140]  __br_mdb_notify+0x4ff/0x15d0
[  443.008305]  ? __br_mdb_add+0x7f0/0x7f0
[  443.012299]  ? zap_class+0x640/0x640
[  443.016050]  ? br_multicast_group_expired+0x96/0x610
[  443.021168]  ? lock_downgrade+0x900/0x900
[  443.025328]  br_mdb_notify+0x310/0x410
[  443.029225]  ? br_mdb_dump+0x27b0/0x27b0
[  443.033306]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.038865]  br_multicast_group_expired+0x1bc/0x610
[  443.043897]  ? br_mdb_free+0x80/0x80
[  443.047637]  call_timer_fn+0x272/0x920
[  443.051535]  ? br_mdb_free+0x80/0x80
[  443.055263]  ? process_timeout+0x40/0x40
[  443.059344]  ? mark_held_locks+0xc7/0x130
[  443.063505]  ? _raw_spin_unlock_irq+0x27/0x80
[  443.068029]  ? _raw_spin_unlock_irq+0x27/0x80
[  443.072532]  ? br_mdb_free+0x80/0x80
[  443.076256]  ? lockdep_hardirqs_on+0x296/0x5b0
[  443.080850]  ? trace_hardirqs_on+0xbd/0x310
[  443.085182]  ? kasan_check_read+0x11/0x20
[  443.089336]  ? __run_timers+0x7da/0xc70
[  443.093323]  ? trace_hardirqs_off_caller+0x310/0x310
[  443.098443]  ? br_mdb_free+0x80/0x80
[  443.102176]  ? br_mdb_free+0x80/0x80
[  443.105898]  __run_timers+0x7e5/0xc70
[  443.109768]  ? timer_fixup_init+0x70/0x70
[  443.113935]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  443.118961]  ? zap_class+0x640/0x640
[  443.122688]  ? print_usage_bug+0xc0/0xc0
[  443.126759]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  443.131970]  ? find_held_lock+0x36/0x1c0
[  443.136066]  ? zap_class+0x640/0x640
[  443.139804]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.145353]  ? check_preemption_disabled+0x48/0x280
[  443.150414]  ? __lock_is_held+0xb5/0x140
[  443.154487]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.160055]  ? check_preemption_disabled+0x48/0x280
[  443.165088]  run_timer_softirq+0x52/0xb0
[  443.169163]  ? rcu_read_lock_sched_held+0x14f/0x180
[  443.174190]  __do_softirq+0x308/0xb7e
[  443.178006]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  443.182533]  ? lock_downgrade+0x900/0x900
[  443.186697]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  443.191822]  ? pvclock_read_flags+0x160/0x160
[  443.196332]  ? lapic_next_event+0x5a/0x90
[  443.200492]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.206064]  ? kvm_clock_read+0x18/0x30
[  443.210064]  ? kvm_sched_clock_read+0x9/0x20
[  443.214486]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.220051]  ? check_preemption_disabled+0x48/0x280
[  443.225091]  irq_exit+0x17f/0x1c0
[  443.228558]  smp_apic_timer_interrupt+0x1cb/0x760
[  443.233409]  ? smp_call_function_single_interrupt+0x159/0x650
[  443.239303]  ? smp_call_function_single_interrupt+0x650/0x650
[  443.245196]  ? interrupt_entry+0xb5/0xc0
[  443.249269]  ? trace_hardirqs_off_caller+0xbb/0x310
[  443.254292]  ? trace_hardirqs_off_caller+0xbb/0x310
[  443.259321]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  443.264175]  ? trace_hardirqs_on_caller+0x310/0x310
[  443.269203]  ? trace_hardirqs_on_caller+0x310/0x310
[  443.274229]  ? task_prio+0x50/0x50
[  443.277790]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.283348]  ? check_preemption_disabled+0x48/0x280
[  443.288387]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  443.293268]  apic_timer_interrupt+0xf/0x20
[  443.297508]  </IRQ>
[  443.299756] RIP: 0010:dump_stack+0x358/0x39d
[  443.304182] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  443.323092] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  443.330811] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  443.338090] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  443.345369] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  443.352649] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  443.360036] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  443.367343]  ? dump_stack+0x34f/0x39d
[  443.371168]  ? dump_stack_print_info.cold.1+0x20/0x20
[  443.376373]  ? mark_held_locks+0x130/0x130
[  443.380620]  ? mark_held_locks+0x130/0x130
[  443.384960]  dump_header+0x27b/0xf72
[  443.388697]  ? pagefault_out_of_memory+0x197/0x197
[  443.393644]  ? __lock_acquire+0x62f/0x4c20
[  443.397895]  ? percpu_ref_get_many+0x240/0x240
[  443.402492]  ? print_usage_bug+0xc0/0xc0
[  443.406606]  ? zap_class+0x640/0x640
[  443.410338]  ? print_usage_bug+0xc0/0xc0
[  443.414406]  ? print_usage_bug+0xc0/0xc0
[  443.418478]  ? zap_class+0x640/0x640
[  443.422208]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.427761]  ? find_held_lock+0x36/0x1c0
[  443.431850]  ? mark_held_locks+0xc7/0x130
[  443.436027]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  443.441144]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  443.446259]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  443.450852]  ? trace_hardirqs_on+0xbd/0x310
[  443.455186]  ? kasan_check_read+0x11/0x20
[  443.459341]  ? ___ratelimit+0x3b4/0x672
[  443.463341]  ? trace_hardirqs_off_caller+0x310/0x310
[  443.468469]  ? trace_hardirqs_on+0x310/0x310
[  443.472888]  ? lock_downgrade+0x900/0x900
[  443.477064]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  443.482264]  ? ___ratelimit+0x3b9/0x672
[  443.486250]  ? idr_get_free+0xf70/0xf70
[  443.490234]  ? find_held_lock+0x36/0x1c0
[  443.494318]  oom_kill_process.cold.27+0x10/0x903
[  443.499086]  ? zap_class+0x640/0x640
[  443.502814]  ? check_preemption_disabled+0x48/0x280
[  443.507843]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  443.512788]  ? kasan_check_read+0x11/0x20
[  443.516944]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  443.522234]  ? oom_evaluate_task+0x540/0x540
[  443.526656]  ? find_held_lock+0x36/0x1c0
[  443.530738]  ? out_of_memory+0x974/0x1430
[  443.534903]  ? lock_downgrade+0x900/0x900
[  443.539072]  ? check_preemption_disabled+0x48/0x280
[  443.544103]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  443.549062]  ? kasan_check_read+0x11/0x20
[  443.553221]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  443.558508]  ? rcu_softirq_qs+0x20/0x20
[  443.562501]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.568061]  ? oom_evaluate_task+0x302/0x540
[  443.572486]  out_of_memory+0xa84/0x1430
[  443.576478]  ? oom_killer_disable+0x3a0/0x3a0
[  443.580987]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  443.585952]  ? __ww_mutex_check_waiters+0x160/0x160
[  443.590991]  __alloc_pages_slowpath+0x2354/0x2e10
[  443.595890]  ? warn_alloc+0x120/0x120
[  443.599703]  ? mark_held_locks+0x130/0x130
[  443.603952]  ? find_get_entry+0xaae/0x1120
[  443.608205]  ? filemap_map_pages+0x1a20/0x1a20
[  443.612808]  ? zap_class+0x640/0x640
[  443.616537]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.622088]  ? check_preemption_disabled+0x48/0x280
[  443.627116]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.632666]  ? should_fail+0x22d/0xd01
[  443.636568]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  443.641685]  ? zap_class+0x640/0x640
[  443.645436]  ? __lock_is_held+0xb5/0x140
[  443.649514]  ? mark_held_locks+0x130/0x130
[  443.653763]  ? lock_release+0xa00/0xa00
[  443.657754]  ? perf_trace_sched_process_exec+0x860/0x860
[  443.663221]  ? xa_load+0x2ba/0x460
[  443.666775]  ? lock_downgrade+0x900/0x900
[  443.671185]  ? __might_sleep+0x95/0x190
[  443.675176]  __alloc_pages_nodemask+0xa80/0xde0
[  443.679864]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  443.684891]  ? __page_cache_alloc+0x191/0x5c0
[  443.689394]  ? xa_load+0x2e1/0x460
[  443.692945]  ? xa_clear_mark+0x40/0x40
[  443.696843]  ? zap_class+0x640/0x640
[  443.700589]  ? zap_class+0x640/0x640
[  443.704314]  ? zap_class+0x640/0x640
[  443.708063]  ? __do_page_cache_readahead+0x663/0x810
[  443.713181]  ? find_held_lock+0x36/0x1c0
[  443.717263]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  443.722824]  alloc_pages_current+0x173/0x350
[  443.727249]  __page_cache_alloc+0x38c/0x5c0
[  443.731583]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  443.736522]  ? kasan_check_read+0x11/0x20
[  443.740678]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  443.745965]  ? generic_perform_write+0x6a0/0x6a0
[  443.750732]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.756283]  ? check_preemption_disabled+0x48/0x280
[  443.761316]  filemap_fault+0x1595/0x25f0
[  443.765405]  ? __lock_page_or_retry+0xa00/0xa00
[  443.770086]  ? mark_held_locks+0x130/0x130
[  443.774340]  ? filemap_map_pages+0xd6b/0x1a20
[  443.778848]  ? lock_downgrade+0x900/0x900
[  443.783008]  ? check_preemption_disabled+0x48/0x280
[  443.788082]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  443.793039]  ? kasan_check_read+0x11/0x20
[  443.797202]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  443.802491]  ? rcu_softirq_qs+0x20/0x20
[  443.806492]  ? filemap_map_pages+0xd92/0x1a20
[  443.811031]  ? find_get_entries_tag+0x1400/0x1400
[  443.815891]  ? debug_object_destroy+0x2b0/0x2b0
[  443.820576]  ? lock_pi_update_atomic+0x150/0x150
[  443.825341]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.830902]  ? lock_acquire+0x1ed/0x520
[  443.834889]  ? ext4_filemap_fault+0x7a/0xad
[  443.839234]  ? lock_release+0xa00/0xa00
[  443.843225]  ? perf_trace_sched_process_exec+0x860/0x860
[  443.848687]  ? print_usage_bug+0xc0/0xc0
[  443.852788]  ? print_usage_bug+0xc0/0xc0
[  443.856875]  ? down_read+0x8d/0x120
[  443.860511]  ? ext4_filemap_fault+0x7a/0xad
[  443.864851]  ? __down_interruptible+0x700/0x700
[  443.869546]  ext4_filemap_fault+0x82/0xad
[  443.873707]  __do_fault+0x100/0x6b0
[  443.877350]  ? pmd_devmap_trans_unstable+0x220/0x220
[  443.882468]  ? mark_held_locks+0x130/0x130
[  443.886716]  ? mark_held_locks+0x130/0x130
[  443.890966]  ? debug_smp_processor_id+0x1c/0x20
[  443.895645]  ? perf_trace_lock+0x14d/0x7a0
[  443.899898]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.905452]  __handle_mm_fault+0x3ea0/0x5be0
[  443.909882]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  443.914738]  ? lock_is_held_type+0x210/0x210
[  443.919167]  ? ksys_dup3+0x680/0x680
[  443.922906]  ? zap_class+0x640/0x640
[  443.926631]  ? zap_class+0x640/0x640
[  443.930353]  ? __x64_sys_futex+0x53e/0x6a0
[  443.934602]  ? find_held_lock+0x36/0x1c0
[  443.938686]  ? handle_mm_fault+0x42a/0xc70
[  443.942934]  ? lock_downgrade+0x900/0x900
[  443.947097]  ? check_preemption_disabled+0x48/0x280
[  443.952132]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  443.957076]  ? kasan_check_read+0x11/0x20
[  443.961232]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  443.966520]  ? rcu_softirq_qs+0x20/0x20
[  443.970506]  ? trace_hardirqs_off_caller+0x310/0x310
[  443.975621]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.981173]  ? check_preemption_disabled+0x48/0x280
[  443.986208]  handle_mm_fault+0x54f/0xc70
[  443.990290]  ? __handle_mm_fault+0x5be0/0x5be0
[  443.994890]  ? find_vma+0x34/0x190
[  443.998533]  __do_page_fault+0x5e8/0xe60
[  444.002605]  ? trace_hardirqs_off+0xb8/0x310
[  444.007050]  do_page_fault+0xf2/0x7e0
[  444.010866]  ? vmalloc_sync_all+0x30/0x30
[  444.015078]  ? error_entry+0x70/0xd0
[  444.018810]  ? trace_hardirqs_off_caller+0xbb/0x310
[  444.023839]  ? trace_hardirqs_on_caller+0xc0/0x310
[  444.028788]  ? syscall_return_slowpath+0x5e0/0x5e0
[  444.033730]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  444.038673]  ? trace_hardirqs_on_caller+0x310/0x310
[  444.043702]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  444.049168]  ? prepare_exit_to_usermode+0x291/0x3b0
[  444.054200]  ? page_fault+0x8/0x30
[  444.057754]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  444.062614]  ? page_fault+0x8/0x30
[  444.066168]  page_fault+0x1e/0x30
[  444.069628] RIP: 0033:0x40f9c0
[  444.072845] Code: Bad RIP value.
[  444.076218] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  444.081587] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  444.088865] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  444.096141] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  444.103420] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  444.110697] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  444.117995] warn_alloc_show_mem: 1 callbacks suppressed
[  444.118007] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  444.118009] Mem-Info:
[  444.118058] active_anon:54833 inactive_anon:712 isolated_anon:0
[  444.118058]  active_file:11 inactive_file:12 isolated_file:0
[  444.118058]  unevictable:0 dirty:0 writeback:0 unstable:0
[  444.118058]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  444.118058]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  444.118058]  free:13768 free_pcp:742 free_cma:0
[  444.123413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  444.130181] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  444.132589] Call Trace:
[  444.165469] 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
[  444.174840]  dump_stack+0x244/0x39d
[  444.202397] lowmem_reserve[]: 0 2818 6321 6321
[  444.205006]  ? dump_stack_print_info.cold.1+0x20/0x20
[  444.231117] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  444.234768]  warn_alloc.cold.116+0xb7/0x1bd
[  444.239311] lowmem_reserve[]: 0 0 3503 3503
[  444.244514]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  444.272263] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  444.276606]  ? lock_downgrade+0x900/0x900
[  444.280898] lowmem_reserve[]: 0 0 0 0
[  444.285760]  ? trace_hardirqs_off+0xb8/0x310
[  444.314897] 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
[  444.319078]  ? trace_hardirqs_off+0xb8/0x310
[  444.322853] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  444.327270]  __alloc_pages_slowpath+0x26e8/0x2e10
[  444.340762] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  444.345210]  ? warn_alloc+0x120/0x120
[  444.360862] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  444.365702]  ? print_usage_bug+0xc0/0xc0
[  444.381037] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  444.381046] 782 total pagecache pages
[  444.384847]  ? warn_alloc+0x120/0x120
[  444.393688] 0 pages in swap cache
[  444.397778]  ? warn_alloc+0x120/0x120
[  444.406346] Swap cache stats: add 0, delete 0, find 0/0
[  444.406355] Free swap  = 0kB
[  444.410160]  ? print_usage_bug+0xc0/0xc0
[  444.413936] Total swap = 0kB
[  444.417389]  ? print_usage_bug+0xc0/0xc0
[  444.421167] 1965979 pages RAM
[  444.426522]  ? __lock_acquire+0x62f/0x4c20
[  444.429512] 0 pages HighMem/MovableOnly
[  444.429521] 342853 pages reserved
[  444.433582]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  444.436573] 0 pages cma reserved
[  444.440629]  ? should_fail+0x22d/0xd01
[  444.443874] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  444.447939]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  444.451892] syz-fuzzer cpuset=/ mems_allowed=0
[  444.455343]  ? __lock_acquire+0x62f/0x4c20
[  444.492317]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  444.497420]  ? __lock_acquire+0x62f/0x4c20
[  444.501651]  ? should_fail+0x22d/0xd01
[  444.505544]  ? find_held_lock+0x36/0x1c0
[  444.509618]  ? mark_held_locks+0x130/0x130
[  444.513862]  ? mark_held_locks+0x130/0x130
[  444.518093]  ? zap_class+0x640/0x640
[  444.521811]  ? mark_held_locks+0xc7/0x130
[  444.525959]  ? do_raw_spin_unlock+0xa7/0x330
[  444.530367]  ? zap_class+0x640/0x640
[  444.534086]  ? print_usage_bug+0xc0/0xc0
[  444.538156]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.543694]  ? check_preemption_disabled+0x48/0x280
[  444.548722]  ? __lock_is_held+0xb5/0x140
[  444.552789]  __alloc_pages_nodemask+0xa80/0xde0
[  444.557478]  ? zap_class+0x640/0x640
[  444.561200]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  444.566234]  ? find_held_lock+0x36/0x1c0
[  444.570328]  ? ____cache_alloc_node+0x1c7/0x1e0
[  444.575035]  ? lock_downgrade+0x900/0x900
[  444.579193]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.584739]  cache_grow_begin+0xa5/0x8c0
[  444.588799]  ? do_raw_spin_unlock+0xa7/0x330
[  444.593221]  fallback_alloc+0x204/0x2e0
[  444.597212]  ____cache_alloc_node+0x1c7/0x1e0
[  444.601713]  kmem_cache_alloc_node+0xe3/0x730
[  444.606211]  ? ipv6_get_ifaddr+0x42e/0x620
[  444.610469]  __alloc_skb+0x119/0x770
[  444.614182]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  444.619460]  ? netdev_alloc_frag+0x1f0/0x1f0
[  444.623871]  ? lock_downgrade+0x900/0x900
[  444.628048]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.633590]  ? refcount_sub_and_test_checked+0x203/0x310
[  444.639050]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  444.644503]  ? addrconf_rs_timer+0x690/0x690
[  444.648926]  ndisc_alloc_skb+0x144/0x340
[  444.652996]  ndisc_send_rs+0x331/0x6e0
[  444.656898]  addrconf_rs_timer+0x314/0x690
[  444.661142]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.665406]  call_timer_fn+0x272/0x920
[  444.669322]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.673559]  ? process_timeout+0x40/0x40
[  444.677625]  ? __run_timers+0x7da/0xc70
[  444.681604]  ? _raw_spin_unlock_irq+0x27/0x80
[  444.686098]  ? _raw_spin_unlock_irq+0x27/0x80
[  444.690594]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.694845]  ? lockdep_hardirqs_on+0x296/0x5b0
[  444.699427]  ? trace_hardirqs_on+0xbd/0x310
[  444.703751]  ? kasan_check_read+0x11/0x20
[  444.707897]  ? __run_timers+0x7da/0xc70
[  444.711880]  ? trace_hardirqs_off_caller+0x310/0x310
[  444.717007]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.721293]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.725527]  __run_timers+0x7e5/0xc70
[  444.729343]  ? timer_fixup_init+0x70/0x70
[  444.733496]  ? _raw_spin_unlock_irq+0x27/0x80
[  444.737991]  ? _raw_spin_unlock_irq+0x27/0x80
[  444.742497]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  444.747086]  ? trace_hardirqs_on+0xbd/0x310
[  444.751424]  ? kasan_check_read+0x11/0x20
[  444.755581]  ? finish_task_switch+0x1f4/0x910
[  444.760079]  ? trace_hardirqs_off_caller+0x310/0x310
[  444.765185]  ? compat_start_thread+0x80/0x80
[  444.769631]  ? pvclock_read_flags+0x160/0x160
[  444.774164]  ? __switch_to_asm+0x34/0x70
[  444.778231]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.783773]  ? check_preemption_disabled+0x48/0x280
[  444.788796]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  444.794335]  ? rcu_pm_notify+0xc0/0xc0
[  444.798243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.804108]  ? check_preemption_disabled+0x48/0x280
[  444.809139]  run_timer_softirq+0x52/0xb0
[  444.813201]  ? rcu_read_lock_sched_held+0x14f/0x180
[  444.818220]  __do_softirq+0x308/0xb7e
[  444.822031]  ? retint_kernel+0x2d/0x2d
[  444.825949]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  444.831090]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  444.836546]  ? trace_hardirqs_on+0x310/0x310
[  444.840960]  ? schedule+0x108/0x460
[  444.844590]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  444.849351]  ? trace_hardirqs_off+0xb8/0x310
[  444.853760]  ? smpboot_thread_fn+0x68b/0xa00
[  444.858173]  ? trace_hardirqs_on+0x310/0x310
[  444.862605]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  444.868163]  ? check_preemption_disabled+0x48/0x280
[  444.873180]  ? takeover_tasklets+0xa90/0xa90
[  444.877607]  run_ksoftirqd+0x5e/0x100
[  444.881416]  smpboot_thread_fn+0x68b/0xa00
[  444.885670]  ? sort_range+0x30/0x30
[  444.889317]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  444.894424]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  444.899969]  ? __kthread_parkme+0xfb/0x1a0
[  444.904224]  ? sort_range+0x30/0x30
[  444.907880]  kthread+0x35a/0x440
[  444.911265]  ? kthread_stop+0x900/0x900
[  444.915250]  ret_from_fork+0x3a/0x50
[  444.918985] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  444.919076] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  444.925932] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  444.925937] Call Trace:
[  444.925944]  <IRQ>
[  444.925962]  dump_stack+0x244/0x39d
[  444.925981]  ? dump_stack_print_info.cold.1+0x20/0x20
[  444.932540] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  444.941815]  warn_alloc.cold.116+0xb7/0x1bd
[  444.944399] ksoftirqd/0 cpuset=/ mems_allowed=0
[  444.946545]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  444.979461]  ? lock_downgrade+0x900/0x900
[  444.983636]  ? trace_hardirqs_off+0xb8/0x310
[  444.988055]  ? trace_hardirqs_off+0xb8/0x310
[  444.992470]  __alloc_pages_slowpath+0x26e8/0x2e10
[  444.997336]  ? warn_alloc+0x120/0x120
[  445.001143]  ? warn_alloc+0x120/0x120
[  445.004948]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  445.009985]  ? warn_alloc+0x120/0x120
[  445.013903]  ? print_usage_bug+0xc0/0xc0
[  445.017982]  ? print_usage_bug+0xc0/0xc0
[  445.022045]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  445.027243]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.032781]  ? should_fail+0x22d/0xd01
[  445.036695]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  445.041804]  ? __lock_acquire+0x62f/0x4c20
[  445.046065]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  445.051182]  ? should_fail+0x22d/0xd01
[  445.055082]  ? mark_held_locks+0x130/0x130
[  445.059324]  ? mark_held_locks+0x130/0x130
[  445.063558]  ? print_usage_bug+0xc0/0xc0
[  445.067627]  ? find_held_lock+0x36/0x1c0
[  445.071707]  ? zap_class+0x640/0x640
[  445.075441]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.080981]  ? check_preemption_disabled+0x48/0x280
[  445.086022]  ? __lock_is_held+0xb5/0x140
[  445.090090]  __alloc_pages_nodemask+0xa80/0xde0
[  445.094762]  ? zap_class+0x640/0x640
[  445.098506]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  445.103540]  ? find_held_lock+0x36/0x1c0
[  445.107631]  ? ____cache_alloc_node+0x1c7/0x1e0
[  445.112322]  ? lock_downgrade+0x900/0x900
[  445.116486]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.122042]  cache_grow_begin+0xa5/0x8c0
[  445.126119]  ? do_raw_spin_unlock+0xa7/0x330
[  445.130553]  fallback_alloc+0x204/0x2e0
[  445.134541]  ____cache_alloc_node+0x1c7/0x1e0
[  445.139055]  kmem_cache_alloc_node+0xe3/0x730
[  445.143557]  ? mark_held_locks+0xc7/0x130
[  445.147719]  __alloc_skb+0x119/0x770
[  445.151444]  ? netdev_alloc_frag+0x1f0/0x1f0
[  445.155858]  ? do_raw_spin_trylock+0x270/0x270
[  445.160446]  ? kmem_cache_alloc_trace+0x353/0x750
[  445.165336]  ? queue_work_on+0x12c/0x1e0
[  445.169412]  ? switchdev_port_obj_del+0xdc/0x440
[  445.174175]  ? switchdev_trans_item_enqueue+0x260/0x260
[  445.179551]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  445.184576]  __br_mdb_notify+0x4ff/0x15d0
[  445.188741]  ? __br_mdb_add+0x7f0/0x7f0
[  445.192740]  ? zap_class+0x640/0x640
[  445.196469]  ? br_multicast_group_expired+0x96/0x610
[  445.201583]  ? lock_downgrade+0x900/0x900
[  445.205740]  br_mdb_notify+0x310/0x410
[  445.209665]  ? br_mdb_dump+0x27b0/0x27b0
[  445.213748]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.219318]  br_multicast_group_expired+0x1bc/0x610
[  445.224342]  ? br_mdb_free+0x80/0x80
[  445.228072]  call_timer_fn+0x272/0x920
[  445.231974]  ? br_mdb_free+0x80/0x80
[  445.235724]  ? process_timeout+0x40/0x40
[  445.239805]  ? mark_held_locks+0xc7/0x130
[  445.243966]  ? _raw_spin_unlock_irq+0x27/0x80
[  445.248460]  ? _raw_spin_unlock_irq+0x27/0x80
[  445.252954]  ? br_mdb_free+0x80/0x80
[  445.256672]  ? lockdep_hardirqs_on+0x296/0x5b0
[  445.261256]  ? trace_hardirqs_on+0xbd/0x310
[  445.265626]  ? kasan_check_read+0x11/0x20
[  445.269796]  ? __run_timers+0x7da/0xc70
[  445.273772]  ? trace_hardirqs_off_caller+0x310/0x310
[  445.278890]  ? br_mdb_free+0x80/0x80
[  445.282613]  ? br_mdb_free+0x80/0x80
[  445.286327]  __run_timers+0x7e5/0xc70
[  445.290143]  ? timer_fixup_init+0x70/0x70
[  445.294389]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  445.299413]  ? zap_class+0x640/0x640
[  445.303137]  ? print_usage_bug+0xc0/0xc0
[  445.307200]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  445.312401]  ? find_held_lock+0x36/0x1c0
[  445.316470]  ? zap_class+0x640/0x640
[  445.320190]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.325729]  ? check_preemption_disabled+0x48/0x280
[  445.330759]  ? __lock_is_held+0xb5/0x140
[  445.334828]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.340369]  ? check_preemption_disabled+0x48/0x280
[  445.345391]  run_timer_softirq+0x52/0xb0
[  445.349457]  ? rcu_read_lock_sched_held+0x14f/0x180
[  445.354478]  __do_softirq+0x308/0xb7e
[  445.358282]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  445.362776]  ? lock_downgrade+0x900/0x900
[  445.366938]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  445.372051]  ? pvclock_read_flags+0x160/0x160
[  445.376550]  ? lapic_next_event+0x5a/0x90
[  445.380701]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.386246]  ? kvm_clock_read+0x18/0x30
[  445.390227]  ? kvm_sched_clock_read+0x9/0x20
[  445.394647]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.400214]  ? check_preemption_disabled+0x48/0x280
[  445.405243]  irq_exit+0x17f/0x1c0
[  445.408698]  smp_apic_timer_interrupt+0x1cb/0x760
[  445.413542]  ? smp_call_function_single_interrupt+0x159/0x650
[  445.419431]  ? smp_call_function_single_interrupt+0x650/0x650
[  445.425317]  ? interrupt_entry+0xb5/0xc0
[  445.429398]  ? trace_hardirqs_off_caller+0xbb/0x310
[  445.434417]  ? trace_hardirqs_off_caller+0xbb/0x310
[  445.439446]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  445.444291]  ? trace_hardirqs_on_caller+0x310/0x310
[  445.449336]  ? trace_hardirqs_on_caller+0x310/0x310
[  445.454356]  ? task_prio+0x50/0x50
[  445.457902]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.463442]  ? check_preemption_disabled+0x48/0x280
[  445.468470]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  445.473320]  apic_timer_interrupt+0xf/0x20
[  445.477548]  </IRQ>
[  445.479793] RIP: 0010:dump_stack+0x358/0x39d
[  445.484205] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  445.503109] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  445.510816] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  445.518082] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  445.525362] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  445.532643] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  445.539908] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  445.547208]  ? dump_stack+0x34f/0x39d
[  445.551073]  ? dump_stack_print_info.cold.1+0x20/0x20
[  445.556271]  ? mark_held_locks+0x130/0x130
[  445.560512]  ? mark_held_locks+0x130/0x130
[  445.564755]  dump_header+0x27b/0xf72
[  445.568501]  ? pagefault_out_of_memory+0x197/0x197
[  445.573462]  ? __lock_acquire+0x62f/0x4c20
[  445.577699]  ? percpu_ref_get_many+0x240/0x240
[  445.582285]  ? print_usage_bug+0xc0/0xc0
[  445.586353]  ? zap_class+0x640/0x640
[  445.590071]  ? print_usage_bug+0xc0/0xc0
[  445.594132]  ? print_usage_bug+0xc0/0xc0
[  445.598197]  ? zap_class+0x640/0x640
[  445.601919]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.607463]  ? find_held_lock+0x36/0x1c0
[  445.611534]  ? mark_held_locks+0xc7/0x130
[  445.615687]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  445.620798]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  445.625918]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  445.630505]  ? trace_hardirqs_on+0xbd/0x310
[  445.634828]  ? kasan_check_read+0x11/0x20
[  445.639002]  ? ___ratelimit+0x3b4/0x672
[  445.642990]  ? trace_hardirqs_off_caller+0x310/0x310
[  445.648103]  ? trace_hardirqs_on+0x310/0x310
[  445.652516]  ? lock_downgrade+0x900/0x900
[  445.656667]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  445.661767]  ? ___ratelimit+0x3b9/0x672
[  445.665761]  ? idr_get_free+0xf70/0xf70
[  445.669857]  ? find_held_lock+0x36/0x1c0
[  445.673929]  oom_kill_process.cold.27+0x10/0x903
[  445.678686]  ? zap_class+0x640/0x640
[  445.682437]  ? check_preemption_disabled+0x48/0x280
[  445.687456]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  445.692386]  ? kasan_check_read+0x11/0x20
[  445.696533]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  445.701822]  ? oom_evaluate_task+0x540/0x540
[  445.706233]  ? find_held_lock+0x36/0x1c0
[  445.710301]  ? out_of_memory+0x974/0x1430
[  445.714456]  ? lock_downgrade+0x900/0x900
[  445.718620]  ? check_preemption_disabled+0x48/0x280
[  445.723668]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  445.728596]  ? kasan_check_read+0x11/0x20
[  445.732752]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  445.738051]  ? rcu_softirq_qs+0x20/0x20
[  445.742042]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.747581]  ? oom_evaluate_task+0x302/0x540
[  445.751993]  out_of_memory+0xa84/0x1430
[  445.755997]  ? oom_killer_disable+0x3a0/0x3a0
[  445.760518]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  445.765455]  ? __ww_mutex_check_waiters+0x160/0x160
[  445.770484]  __alloc_pages_slowpath+0x2354/0x2e10
[  445.775357]  ? warn_alloc+0x120/0x120
[  445.779159]  ? mark_held_locks+0x130/0x130
[  445.783416]  ? find_get_entry+0xaae/0x1120
[  445.787665]  ? filemap_map_pages+0x1a20/0x1a20
[  445.792255]  ? zap_class+0x640/0x640
[  445.795996]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.802065]  ? check_preemption_disabled+0x48/0x280
[  445.807084]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.812624]  ? should_fail+0x22d/0xd01
[  445.816518]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  445.821639]  ? zap_class+0x640/0x640
[  445.825383]  ? __lock_is_held+0xb5/0x140
[  445.829454]  ? mark_held_locks+0x130/0x130
[  445.833708]  ? lock_release+0xa00/0xa00
[  445.837686]  ? perf_trace_sched_process_exec+0x860/0x860
[  445.843139]  ? xa_load+0x2ba/0x460
[  445.846680]  ? lock_downgrade+0x900/0x900
[  445.850834]  ? __might_sleep+0x95/0x190
[  445.854834]  __alloc_pages_nodemask+0xa80/0xde0
[  445.859516]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  445.864551]  ? __page_cache_alloc+0x191/0x5c0
[  445.869055]  ? xa_load+0x2e1/0x460
[  445.872617]  ? xa_clear_mark+0x40/0x40
[  445.876514]  ? zap_class+0x640/0x640
[  445.880239]  ? zap_class+0x640/0x640
[  445.883955]  ? zap_class+0x640/0x640
[  445.887709]  ? __do_page_cache_readahead+0x663/0x810
[  445.892821]  ? find_held_lock+0x36/0x1c0
[  445.896888]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  445.902437]  alloc_pages_current+0x173/0x350
[  445.906854]  __page_cache_alloc+0x38c/0x5c0
[  445.911175]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  445.916107]  ? kasan_check_read+0x11/0x20
[  445.920256]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  445.925537]  ? generic_perform_write+0x6a0/0x6a0
[  445.930295]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.935840]  ? check_preemption_disabled+0x48/0x280
[  445.940868]  filemap_fault+0x1595/0x25f0
[  445.944971]  ? __lock_page_or_retry+0xa00/0xa00
[  445.949662]  ? mark_held_locks+0x130/0x130
[  445.953927]  ? filemap_map_pages+0xd6b/0x1a20
[  445.958424]  ? lock_downgrade+0x900/0x900
[  445.962578]  ? check_preemption_disabled+0x48/0x280
[  445.967600]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  445.972534]  ? kasan_check_read+0x11/0x20
[  445.976686]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  445.981963]  ? rcu_softirq_qs+0x20/0x20
[  445.985954]  ? filemap_map_pages+0xd92/0x1a20
[  445.990465]  ? find_get_entries_tag+0x1400/0x1400
[  445.995326]  ? debug_object_destroy+0x2b0/0x2b0
[  445.999998]  ? lock_pi_update_atomic+0x150/0x150
[  446.004797]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.010350]  ? lock_acquire+0x1ed/0x520
[  446.014328]  ? ext4_filemap_fault+0x7a/0xad
[  446.018679]  ? lock_release+0xa00/0xa00
[  446.022669]  ? perf_trace_sched_process_exec+0x860/0x860
[  446.028123]  ? print_usage_bug+0xc0/0xc0
[  446.032191]  ? print_usage_bug+0xc0/0xc0
[  446.036266]  ? down_read+0x8d/0x120
[  446.039919]  ? ext4_filemap_fault+0x7a/0xad
[  446.044251]  ? __down_interruptible+0x700/0x700
[  446.048938]  ext4_filemap_fault+0x82/0xad
[  446.053124]  __do_fault+0x100/0x6b0
[  446.056757]  ? pmd_devmap_trans_unstable+0x220/0x220
[  446.061871]  ? mark_held_locks+0x130/0x130
[  446.066116]  ? mark_held_locks+0x130/0x130
[  446.070356]  ? debug_smp_processor_id+0x1c/0x20
[  446.075036]  ? perf_trace_lock+0x14d/0x7a0
[  446.079281]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.084844]  __handle_mm_fault+0x3ea0/0x5be0
[  446.089264]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  446.094112]  ? lock_is_held_type+0x210/0x210
[  446.098533]  ? ksys_dup3+0x680/0x680
[  446.102265]  ? zap_class+0x640/0x640
[  446.105980]  ? zap_class+0x640/0x640
[  446.109729]  ? __x64_sys_futex+0x53e/0x6a0
[  446.113971]  ? find_held_lock+0x36/0x1c0
[  446.118063]  ? handle_mm_fault+0x42a/0xc70
[  446.122302]  ? lock_downgrade+0x900/0x900
[  446.126455]  ? check_preemption_disabled+0x48/0x280
[  446.131477]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  446.136422]  ? kasan_check_read+0x11/0x20
[  446.140573]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.145853]  ? rcu_softirq_qs+0x20/0x20
[  446.149853]  ? trace_hardirqs_off_caller+0x310/0x310
[  446.154962]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.160501]  ? check_preemption_disabled+0x48/0x280
[  446.165532]  handle_mm_fault+0x54f/0xc70
[  446.169600]  ? __handle_mm_fault+0x5be0/0x5be0
[  446.174191]  ? find_vma+0x34/0x190
[  446.177740]  __do_page_fault+0x5e8/0xe60
[  446.181807]  ? trace_hardirqs_off+0xb8/0x310
[  446.186226]  do_page_fault+0xf2/0x7e0
[  446.190037]  ? vmalloc_sync_all+0x30/0x30
[  446.194192]  ? error_entry+0x70/0xd0
[  446.197911]  ? trace_hardirqs_off_caller+0xbb/0x310
[  446.202928]  ? trace_hardirqs_on_caller+0xc0/0x310
[  446.207857]  ? syscall_return_slowpath+0x5e0/0x5e0
[  446.212803]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  446.217650]  ? trace_hardirqs_on_caller+0x310/0x310
[  446.222667]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  446.228124]  ? prepare_exit_to_usermode+0x291/0x3b0
[  446.233143]  ? page_fault+0x8/0x30
[  446.236687]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  446.241532]  ? page_fault+0x8/0x30
[  446.245080]  page_fault+0x1e/0x30
[  446.248537] RIP: 0033:0x40f9c0
[  446.251743] Code: Bad RIP value.
[  446.255107] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  446.260469] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  446.267737] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  446.275041] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  446.282311] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  446.289578] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  446.296881] warn_alloc_show_mem: 1 callbacks suppressed
[  446.296921] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  446.296923] Mem-Info:
[  446.296965] active_anon:54833 inactive_anon:712 isolated_anon:0
[  446.296965]  active_file:11 inactive_file:12 isolated_file:0
[  446.296965]  unevictable:0 dirty:0 writeback:0 unstable:0
[  446.296965]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  446.296965]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  446.296965]  free:13768 free_pcp:742 free_cma:0
[  446.302318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  446.309098] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  446.311500] Call Trace:
[  446.344373] 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
[  446.353748]  dump_stack+0x244/0x39d
[  446.381325] lowmem_reserve[]: 0 2818 6321 6321
[  446.383922]  ? dump_stack_print_info.cold.1+0x20/0x20
[  446.410024] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  446.413693]  warn_alloc.cold.116+0xb7/0x1bd
[  446.418231] lowmem_reserve[]: 0 0 3503 3503
[  446.423436]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  446.451180] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  446.455514]  ? lock_downgrade+0x900/0x900
[  446.459806] lowmem_reserve[]: 0 0 0 0
[  446.464689]  ? trace_hardirqs_off+0xb8/0x310
[  446.493846] 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
[  446.498001]  ? trace_hardirqs_off+0xb8/0x310
[  446.501770] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  446.506181]  __alloc_pages_slowpath+0x26e8/0x2e10
[  446.519675] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  446.524104]  ? warn_alloc+0x120/0x120
[  446.539772] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  446.544606]  ? print_usage_bug+0xc0/0xc0
[  446.559937] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  446.563729]  ? warn_alloc+0x120/0x120
[  446.572558] 782 total pagecache pages
[  446.576614]  ? warn_alloc+0x120/0x120
[  446.585174] 0 pages in swap cache
[  446.588961]  ? print_usage_bug+0xc0/0xc0
[  446.592741] Swap cache stats: add 0, delete 0, find 0/0
[  446.596531]  ? print_usage_bug+0xc0/0xc0
[  446.599957] Free swap  = 0kB
[  446.604009]  ? __lock_acquire+0x62f/0x4c20
[  446.609349] Total swap = 0kB
[  446.609356] 1965979 pages RAM
[  446.613439]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.616433] 0 pages HighMem/MovableOnly
[  446.620705]  ? should_fail+0x22d/0xd01
[  446.623696] 342853 pages reserved
[  446.623704] 0 pages cma reserved
[  446.626802]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  446.626819]  ? __lock_acquire+0x62f/0x4c20
[  446.632488] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  446.636335]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  446.640218] syz-fuzzer cpuset=/ mems_allowed=0
[  446.643667]  ? __lock_acquire+0x62f/0x4c20
[  446.680424]  ? should_fail+0x22d/0xd01
[  446.684315]  ? find_held_lock+0x36/0x1c0
[  446.688384]  ? mark_held_locks+0x130/0x130
[  446.692622]  ? mark_held_locks+0x130/0x130
[  446.696873]  ? zap_class+0x640/0x640
[  446.700590]  ? mark_held_locks+0xc7/0x130
[  446.704737]  ? do_raw_spin_unlock+0xa7/0x330
[  446.709148]  ? zap_class+0x640/0x640
[  446.712951]  ? print_usage_bug+0xc0/0xc0
[  446.717028]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.722573]  ? check_preemption_disabled+0x48/0x280
[  446.727603]  ? __lock_is_held+0xb5/0x140
[  446.731702]  __alloc_pages_nodemask+0xa80/0xde0
[  446.736402]  ? zap_class+0x640/0x640
[  446.740133]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  446.745166]  ? find_held_lock+0x36/0x1c0
[  446.749251]  ? ____cache_alloc_node+0x1c7/0x1e0
[  446.753926]  ? lock_downgrade+0x900/0x900
[  446.758082]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.763638]  cache_grow_begin+0xa5/0x8c0
[  446.767699]  ? do_raw_spin_unlock+0xa7/0x330
[  446.772116]  fallback_alloc+0x204/0x2e0
[  446.776094]  ____cache_alloc_node+0x1c7/0x1e0
[  446.780608]  kmem_cache_alloc_node+0xe3/0x730
[  446.785135]  ? ipv6_get_ifaddr+0x42e/0x620
[  446.789382]  __alloc_skb+0x119/0x770
[  446.793095]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.798477]  ? netdev_alloc_frag+0x1f0/0x1f0
[  446.802882]  ? lock_downgrade+0x900/0x900
[  446.807049]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.812587]  ? refcount_sub_and_test_checked+0x203/0x310
[  446.818045]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  446.823493]  ? addrconf_rs_timer+0x690/0x690
[  446.827912]  ndisc_alloc_skb+0x144/0x340
[  446.831980]  ndisc_send_rs+0x331/0x6e0
[  446.835887]  addrconf_rs_timer+0x314/0x690
[  446.840131]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  446.844420]  call_timer_fn+0x272/0x920
[  446.848320]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  446.852555]  ? process_timeout+0x40/0x40
[  446.856653]  ? __run_timers+0x7da/0xc70
[  446.860631]  ? _raw_spin_unlock_irq+0x27/0x80
[  446.865127]  ? _raw_spin_unlock_irq+0x27/0x80
[  446.869637]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  446.873873]  ? lockdep_hardirqs_on+0x296/0x5b0
[  446.878456]  ? trace_hardirqs_on+0xbd/0x310
[  446.882779]  ? kasan_check_read+0x11/0x20
[  446.886943]  ? __run_timers+0x7da/0xc70
[  446.890917]  ? trace_hardirqs_off_caller+0x310/0x310
[  446.896035]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  446.900298]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  446.904528]  __run_timers+0x7e5/0xc70
[  446.908354]  ? timer_fixup_init+0x70/0x70
[  446.912499]  ? _raw_spin_unlock_irq+0x27/0x80
[  446.917004]  ? _raw_spin_unlock_irq+0x27/0x80
[  446.921513]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  446.926100]  ? trace_hardirqs_on+0xbd/0x310
[  446.930440]  ? kasan_check_read+0x11/0x20
[  446.934596]  ? finish_task_switch+0x1f4/0x910
[  446.939095]  ? trace_hardirqs_off_caller+0x310/0x310
[  446.944223]  ? compat_start_thread+0x80/0x80
[  446.948675]  ? pvclock_read_flags+0x160/0x160
[  446.953184]  ? __switch_to_asm+0x34/0x70
[  446.957261]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.962815]  ? check_preemption_disabled+0x48/0x280
[  446.967841]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  446.973380]  ? rcu_pm_notify+0xc0/0xc0
[  446.977369]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.982906]  ? check_preemption_disabled+0x48/0x280
[  446.987945]  run_timer_softirq+0x52/0xb0
[  446.992021]  ? rcu_read_lock_sched_held+0x14f/0x180
[  446.997050]  __do_softirq+0x308/0xb7e
[  447.000875]  ? retint_kernel+0x2d/0x2d
[  447.004770]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  447.009871]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  447.015321]  ? trace_hardirqs_on+0x310/0x310
[  447.019735]  ? schedule+0x108/0x460
[  447.023364]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  447.028134]  ? trace_hardirqs_off+0xb8/0x310
[  447.032564]  ? smpboot_thread_fn+0x68b/0xa00
[  447.036988]  ? trace_hardirqs_on+0x310/0x310
[  447.041409]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.046949]  ? check_preemption_disabled+0x48/0x280
[  447.051969]  ? takeover_tasklets+0xa90/0xa90
[  447.056381]  run_ksoftirqd+0x5e/0x100
[  447.060202]  smpboot_thread_fn+0x68b/0xa00
[  447.064463]  ? sort_range+0x30/0x30
[  447.068098]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  447.073202]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.078744]  ? __kthread_parkme+0xfb/0x1a0
[  447.083002]  ? sort_range+0x30/0x30
[  447.086640]  kthread+0x35a/0x440
[  447.090029]  ? kthread_stop+0x900/0x900
[  447.094005]  ret_from_fork+0x3a/0x50
[  447.097751] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  447.097785] rcu: INFO: rcu_preempt self-detected stall on CPU
[  447.104693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  447.104701] Call Trace:
[  447.110870] rcu: 	0-...!: (1 GPs behind) idle=4fe/1/0x4000000000000002 softirq=16127/16128 fqs=2 
[  447.119907]  <IRQ>
[  447.119926]  dump_stack+0x244/0x39d
[  447.119943]  ? dump_stack_print_info.cold.1+0x20/0x20
[  447.119970]  warn_alloc.cold.116+0xb7/0x1bd
[  447.119985]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  447.120005]  ? lock_downgrade+0x900/0x900
[  447.120053]  ? trace_hardirqs_off+0xb8/0x310
[  447.120073]  ? trace_hardirqs_off+0xb8/0x310
[  447.120094]  __alloc_pages_slowpath+0x26e8/0x2e10
[  447.122946] rcu: 	 (t=10663 jiffies g=19761 q=31)
[  447.131974]  ? warn_alloc+0x120/0x120
[  447.134094] rcu: rcu_preempt kthread starved for 10481 jiffies! g19761 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
[  447.137704]  ? warn_alloc+0x120/0x120
[  447.142868] rcu: RCU grace-period kthread stack dump:
[  447.147183]  ? warn_alloc+0x120/0x120
[  447.152031] rcu_preempt     R  running task    22696    10      2 0x80000000
[  447.156178]  ? print_usage_bug+0xc0/0xc0
[  447.160580] Call Trace:
[  447.164982]  ? mark_held_locks+0x130/0x130
[  447.169826]  __schedule+0x8cf/0x21d0
[  447.174651]  ? kvm_clock_read+0x18/0x30
[  447.178438]  ? __sched_text_start+0x8/0x8
[  447.188902]  ? print_usage_bug+0xc0/0xc0
[  447.192694]  ? add_timer_on+0xa20/0xa20
[  447.197870]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.201652]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  447.208826]  ? should_fail+0x22d/0xd01
[  447.212868]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  447.215434]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  447.219649]  ? trace_hardirqs_on+0xbd/0x310
[  447.223349]  ? __lock_acquire+0x62f/0x4c20
[  447.227326]  ? kasan_check_read+0x11/0x20
[  447.231457]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  447.235503]  ? prepare_to_swait_event+0x25a/0x800
[  447.239484]  ? __lock_acquire+0x62f/0x4c20
[  447.245029]  ? trace_hardirqs_off_caller+0x310/0x310
[  447.250288]  ? should_fail+0x22d/0xd01
[  447.250311]  ? mark_held_locks+0x130/0x130
[  447.254182]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  447.259277]  ? mark_held_locks+0x130/0x130
[  447.264378]  schedule+0xfe/0x460
[  447.268690]  ? zap_class+0x640/0x640
[  447.272908]  ? __schedule+0x21d0/0x21d0
[  447.277075]  ? print_usage_bug+0xc0/0xc0
[  447.282168]  ? prepare_to_swait_event+0x25a/0x800
[  447.286994]  ? find_held_lock+0x36/0x1c0
[  447.291219]  ? __init_swait_queue_head+0x150/0x150
[  447.296311]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.300190]  ? __lockdep_init_map+0x105/0x590
[  447.304947]  ? check_preemption_disabled+0x48/0x280
[  447.310052]  ? lockdep_init_map+0x9/0x10
[  447.314278]  ? __lock_is_held+0xb5/0x140
[  447.317633]  schedule_timeout+0x140/0x260
[  447.321333]  __alloc_pages_nodemask+0xa80/0xde0
[  447.325316]  ? usleep_range+0x1a0/0x1a0
[  447.329348]  ? zap_class+0x640/0x640
[  447.334181]  ? __next_timer_interrupt+0x1a0/0x1a0
[  447.338231]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  447.343160]  rcu_gp_fqs_loop+0x762/0xa80
[  447.348677]  ? find_held_lock+0x36/0x1c0
[  447.353162]  ? rcu_gp_fqs_check_wake+0x170/0x170
[  447.358163]  ? ____cache_alloc_node+0x1c7/0x1e0
[  447.362209]  ? trace_hardirqs_off_caller+0x310/0x310
[  447.366256]  ? lock_downgrade+0x900/0x900
[  447.370391]  ? perf_trace_sched_process_exec+0x860/0x860
[  447.375058]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.379040]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.382752]  cache_grow_begin+0xa5/0x8c0
[  447.387583]  ? rcu_gp_init+0x90b/0x1260
[  447.392580]  ? do_raw_spin_unlock+0xa7/0x330
[  447.396652]  ? dump_blkd_tasks.isra.48+0xe0/0xe0
[  447.400741]  fallback_alloc+0x204/0x2e0
[  447.405497]  ? rcu_accelerate_cbs+0x562/0xae0
[  447.405514]  ? zap_class+0x640/0x640
[  447.410201]  ____cache_alloc_node+0x1c7/0x1e0
[  447.415299]  ? zap_class+0x640/0x640
[  447.419432]  kmem_cache_alloc_node+0xe3/0x730
[  447.424870]  ? __lock_is_held+0xb5/0x140
[  447.430391]  ? ipv6_get_ifaddr+0x42e/0x620
[  447.435914]  ? __lock_is_held+0xb5/0x140
[  447.439967]  __alloc_skb+0x119/0x770
[  447.443944]  ? zap_class+0x640/0x640
[  447.448355]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  447.453119]  ? rcu_accelerate_cbs+0x562/0xae0
[  447.457080]  ? netdev_alloc_frag+0x1f0/0x1f0
[  447.461565]  ? find_held_lock+0x36/0x1c0
[  447.465269]  ? lock_downgrade+0x900/0x900
[  447.469778]  ? rcu_gp_kthread+0x8cf/0xc70
[  447.473479]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.477957]  ? _raw_spin_unlock_irq+0x27/0x80
[  447.482004]  ? refcount_sub_and_test_checked+0x203/0x310
[  447.486227]  ? _raw_spin_unlock_irq+0x27/0x80
[  447.490273]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  447.493979]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  447.497678]  ? addrconf_rs_timer+0x690/0x690
[  447.502943]  ? trace_hardirqs_on+0xbd/0x310
[  447.507446]  ndisc_alloc_skb+0x144/0x340
[  447.511853]  ? kasan_check_read+0x11/0x20
[  447.515898]  ndisc_send_rs+0x331/0x6e0
[  447.520039]  ? trace_hardirqs_off_caller+0x310/0x310
[  447.524178]  addrconf_rs_timer+0x314/0x690
[  447.529720]  ? perf_trace_sched_process_exec+0x860/0x860
[  447.534206]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  447.539666]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.544148]  call_timer_fn+0x272/0x920
[  447.549588]  rcu_gp_kthread+0x341/0xc70
[  447.554165]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  447.558577]  ? rcu_gp_init+0x1260/0x1260
[  447.562882]  ? process_timeout+0x40/0x40
[  447.566936]  ? mark_held_locks+0x130/0x130
[  447.571074]  ? mark_held_locks+0xc7/0x130
[  447.574945]  ? __schedule+0x168a/0x21d0
[  447.580059]  ? _raw_spin_unlock_irq+0x27/0x80
[  447.584279]  ? _raw_spin_unlock_irq+0x27/0x80
[  447.589716]  ? _raw_spin_unlock_irq+0x27/0x80
[  447.593941]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  447.599465]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  447.603346]  ? trace_hardirqs_on+0xbd/0x310
[  447.607320]  ? lockdep_hardirqs_on+0x296/0x5b0
[  447.611543]  ? kasan_check_read+0x11/0x20
[  447.615590]  ? trace_hardirqs_on+0xbd/0x310
[  447.619638]  ? __schedule+0x168a/0x21d0
[  447.623874]  ? kasan_check_read+0x11/0x20
[  447.623890]  ? __run_timers+0x7da/0xc70
[  447.628035]  ? trace_hardirqs_off_caller+0x310/0x310
[  447.632009]  ? trace_hardirqs_off_caller+0x310/0x310
[  447.636501]  ? lock_pin_lock+0x350/0x350
[  447.640992]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  447.645477]  ? _raw_spin_unlock_irq+0x60/0x80
[  447.650050]  __run_timers+0x7e5/0xc70
[  447.654274]  ? __schedule+0x168a/0x21d0
[  447.658586]  ? timer_fixup_init+0x70/0x70
[  447.663150]  ? __switch_to_asm+0x40/0x70
[  447.667637]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  447.671956]  ? __switch_to_asm+0x40/0x70
[  447.675951]  ? zap_class+0x640/0x640
[  447.680291]  ? show_schedstat+0x721/0xf30
[  447.684260]  ? print_usage_bug+0xc0/0xc0
[  447.689362]  ? __sched_text_start+0x8/0x8
[  447.694456]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  447.698508]  ? find_held_lock+0x36/0x1c0
[  447.702737]  ? find_held_lock+0x36/0x1c0
[  447.707219]  ? __kthread_parkme+0xce/0x1a0
[  447.710997]  ? zap_class+0x640/0x640
[  447.714963]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  447.719099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.723147]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  447.728154]  ? check_preemption_disabled+0x48/0x280
[  447.732205]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  447.735911]  ? __lock_is_held+0xb5/0x140
[  447.740051]  ? trace_hardirqs_on+0xbd/0x310
[  447.744096]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.748230]  ? kasan_check_read+0x11/0x20
[  447.753409]  ? check_preemption_disabled+0x48/0x280
[  447.757459]  ? __kthread_parkme+0xce/0x1a0
[  447.761508]  run_timer_softirq+0x52/0xb0
[  447.765727]  ? trace_hardirqs_off_caller+0x310/0x310
[  447.769428]  ? rcu_read_lock_sched_held+0x14f/0x180
[  447.774536]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  447.780054]  __do_softirq+0x308/0xb7e
[  447.785146]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.790149]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  447.794739]  ? __kthread_parkme+0xfb/0x1a0
[  447.798790]  ? lock_downgrade+0x900/0x900
[  447.803090]  ? rcu_gp_init+0x1260/0x1260
[  447.808625]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  447.812791]  kthread+0x35a/0x440
[  447.817950]  ? pvclock_read_flags+0x160/0x160
[  447.822170]  ? kthread_stop+0x900/0x900
[  447.826235]  ? lapic_next_event+0x5a/0x90
[  447.831327]  ret_from_fork+0x3a/0x50
[  447.836339]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.841607] NMI backtrace for cpu 0
[  447.845385]  ? kvm_clock_read+0x18/0x30
[  447.905679]  ? kvm_sched_clock_read+0x9/0x20
[  447.910133]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.915696]  ? check_preemption_disabled+0x48/0x280
[  447.920746]  irq_exit+0x17f/0x1c0
[  447.924222]  smp_apic_timer_interrupt+0x1cb/0x760
[  447.929069]  ? smp_call_function_single_interrupt+0x159/0x650
[  447.934970]  ? smp_call_function_single_interrupt+0x650/0x650
[  447.940865]  ? interrupt_entry+0xb5/0xc0
[  447.944935]  ? trace_hardirqs_off_caller+0xbb/0x310
[  447.949952]  ? trace_hardirqs_off_caller+0xbb/0x310
[  447.954974]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  447.959820]  ? trace_hardirqs_on_caller+0x310/0x310
[  447.964849]  ? trace_hardirqs_on_caller+0x310/0x310
[  447.969884]  ? task_prio+0x50/0x50
[  447.973431]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.978991]  ? check_preemption_disabled+0x48/0x280
[  447.984032]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  447.988884]  apic_timer_interrupt+0xf/0x20
[  447.993115]  </IRQ>
[  447.995363] RIP: 0010:dump_stack+0x358/0x39d
[  447.999773] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  448.018711] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  448.026423] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  448.033691] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  448.040961] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  448.048229] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  448.055527] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  448.062846]  ? dump_stack+0x34f/0x39d
[  448.066664]  ? dump_stack_print_info.cold.1+0x20/0x20
[  448.071875]  ? mark_held_locks+0x130/0x130
[  448.076130]  ? mark_held_locks+0x130/0x130
[  448.080385]  dump_header+0x27b/0xf72
[  448.084126]  ? pagefault_out_of_memory+0x197/0x197
[  448.089079]  ? __lock_acquire+0x62f/0x4c20
[  448.093316]  ? percpu_ref_get_many+0x240/0x240
[  448.097906]  ? print_usage_bug+0xc0/0xc0
[  448.101977]  ? zap_class+0x640/0x640
[  448.105700]  ? print_usage_bug+0xc0/0xc0
[  448.109761]  ? print_usage_bug+0xc0/0xc0
[  448.113848]  ? zap_class+0x640/0x640
[  448.117591]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.123151]  ? find_held_lock+0x36/0x1c0
[  448.127221]  ? mark_held_locks+0xc7/0x130
[  448.131378]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  448.136512]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  448.141631]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  448.146222]  ? trace_hardirqs_on+0xbd/0x310
[  448.150549]  ? kasan_check_read+0x11/0x20
[  448.154696]  ? ___ratelimit+0x3b4/0x672
[  448.158673]  ? trace_hardirqs_off_caller+0x310/0x310
[  448.163805]  ? trace_hardirqs_on+0x310/0x310
[  448.168236]  ? lock_downgrade+0x900/0x900
[  448.172416]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  448.177579]  ? ___ratelimit+0x3b9/0x672
[  448.181653]  ? idr_get_free+0xf70/0xf70
[  448.185666]  ? find_held_lock+0x36/0x1c0
[  448.189795]  oom_kill_process.cold.27+0x10/0x903
[  448.194587]  ? zap_class+0x640/0x640
[  448.198308]  ? check_preemption_disabled+0x48/0x280
[  448.203333]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  448.208265]  ? kasan_check_read+0x11/0x20
[  448.212417]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  448.217714]  ? oom_evaluate_task+0x540/0x540
[  448.222144]  ? find_held_lock+0x36/0x1c0
[  448.226221]  ? out_of_memory+0x974/0x1430
[  448.230406]  ? lock_downgrade+0x900/0x900
[  448.234559]  ? check_preemption_disabled+0x48/0x280
[  448.239585]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  448.244516]  ? kasan_check_read+0x11/0x20
[  448.248667]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  448.253943]  ? rcu_softirq_qs+0x20/0x20
[  448.257924]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.263458]  ? oom_evaluate_task+0x302/0x540
[  448.267898]  out_of_memory+0xa84/0x1430
[  448.271882]  ? oom_killer_disable+0x3a0/0x3a0
[  448.276377]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  448.281317]  ? __ww_mutex_check_waiters+0x160/0x160
[  448.286361]  __alloc_pages_slowpath+0x2354/0x2e10
[  448.291249]  ? warn_alloc+0x120/0x120
[  448.295050]  ? mark_held_locks+0x130/0x130
[  448.299321]  ? find_get_entry+0xaae/0x1120
[  448.303565]  ? filemap_map_pages+0x1a20/0x1a20
[  448.308153]  ? zap_class+0x640/0x640
[  448.311883]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.317446]  ? check_preemption_disabled+0x48/0x280
[  448.322471]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.328007]  ? should_fail+0x22d/0xd01
[  448.331925]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  448.337039]  ? zap_class+0x640/0x640
[  448.340789]  ? __lock_is_held+0xb5/0x140
[  448.344863]  ? mark_held_locks+0x130/0x130
[  448.349103]  ? lock_release+0xa00/0xa00
[  448.353085]  ? perf_trace_sched_process_exec+0x860/0x860
[  448.358537]  ? xa_load+0x2ba/0x460
[  448.362084]  ? lock_downgrade+0x900/0x900
[  448.366256]  ? __might_sleep+0x95/0x190
[  448.370614]  __alloc_pages_nodemask+0xa80/0xde0
[  448.375288]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  448.380310]  ? __page_cache_alloc+0x191/0x5c0
[  448.384814]  ? xa_load+0x2e1/0x460
[  448.388356]  ? xa_clear_mark+0x40/0x40
[  448.392254]  ? zap_class+0x640/0x640
[  448.395977]  ? zap_class+0x640/0x640
[  448.399690]  ? zap_class+0x640/0x640
[  448.403408]  ? __do_page_cache_readahead+0x663/0x810
[  448.408517]  ? find_held_lock+0x36/0x1c0
[  448.412588]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  448.418134]  alloc_pages_current+0x173/0x350
[  448.422550]  __page_cache_alloc+0x38c/0x5c0
[  448.426870]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  448.431807]  ? kasan_check_read+0x11/0x20
[  448.435955]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  448.441235]  ? generic_perform_write+0x6a0/0x6a0
[  448.445996]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.451543]  ? check_preemption_disabled+0x48/0x280
[  448.456568]  filemap_fault+0x1595/0x25f0
[  448.460645]  ? __lock_page_or_retry+0xa00/0xa00
[  448.465334]  ? mark_held_locks+0x130/0x130
[  448.469578]  ? filemap_map_pages+0xd6b/0x1a20
[  448.474077]  ? lock_downgrade+0x900/0x900
[  448.478224]  ? check_preemption_disabled+0x48/0x280
[  448.483242]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  448.488175]  ? kasan_check_read+0x11/0x20
[  448.492339]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  448.497613]  ? rcu_softirq_qs+0x20/0x20
[  448.501610]  ? filemap_map_pages+0xd92/0x1a20
[  448.506116]  ? find_get_entries_tag+0x1400/0x1400
[  448.510976]  ? debug_object_destroy+0x2b0/0x2b0
[  448.515666]  ? lock_pi_update_atomic+0x150/0x150
[  448.520421]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.525971]  ? lock_acquire+0x1ed/0x520
[  448.529942]  ? ext4_filemap_fault+0x7a/0xad
[  448.534272]  ? lock_release+0xa00/0xa00
[  448.538244]  ? perf_trace_sched_process_exec+0x860/0x860
[  448.543695]  ? print_usage_bug+0xc0/0xc0
[  448.547789]  ? print_usage_bug+0xc0/0xc0
[  448.551862]  ? down_read+0x8d/0x120
[  448.555486]  ? ext4_filemap_fault+0x7a/0xad
[  448.559811]  ? __down_interruptible+0x700/0x700
[  448.564506]  ext4_filemap_fault+0x82/0xad
[  448.569104]  __do_fault+0x100/0x6b0
[  448.572736]  ? pmd_devmap_trans_unstable+0x220/0x220
[  448.577859]  ? mark_held_locks+0x130/0x130
[  448.582111]  ? mark_held_locks+0x130/0x130
[  448.586361]  ? debug_smp_processor_id+0x1c/0x20
[  448.591034]  ? perf_trace_lock+0x14d/0x7a0
[  448.595287]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.600841]  __handle_mm_fault+0x3ea0/0x5be0
[  448.605273]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  448.610119]  ? lock_is_held_type+0x210/0x210
[  448.614550]  ? ksys_dup3+0x680/0x680
[  448.618281]  ? zap_class+0x640/0x640
[  448.621998]  ? zap_class+0x640/0x640
[  448.625736]  ? __x64_sys_futex+0x53e/0x6a0
[  448.629976]  ? find_held_lock+0x36/0x1c0
[  448.634053]  ? handle_mm_fault+0x42a/0xc70
[  448.638288]  ? lock_downgrade+0x900/0x900
[  448.642455]  ? check_preemption_disabled+0x48/0x280
[  448.647475]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  448.652409]  ? kasan_check_read+0x11/0x20
[  448.656570]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  448.661961]  ? rcu_softirq_qs+0x20/0x20
[  448.665941]  ? trace_hardirqs_off_caller+0x310/0x310
[  448.671050]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.676606]  ? check_preemption_disabled+0x48/0x280
[  448.681676]  handle_mm_fault+0x54f/0xc70
[  448.685770]  ? __handle_mm_fault+0x5be0/0x5be0
[  448.690381]  ? find_vma+0x34/0x190
[  448.693927]  __do_page_fault+0x5e8/0xe60
[  448.697988]  ? trace_hardirqs_off+0xb8/0x310
[  448.702419]  do_page_fault+0xf2/0x7e0
[  448.706241]  ? vmalloc_sync_all+0x30/0x30
[  448.710418]  ? error_entry+0x70/0xd0
[  448.714134]  ? trace_hardirqs_off_caller+0xbb/0x310
[  448.719184]  ? trace_hardirqs_on_caller+0xc0/0x310
[  448.724128]  ? syscall_return_slowpath+0x5e0/0x5e0
[  448.729075]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  448.733933]  ? trace_hardirqs_on_caller+0x310/0x310
[  448.738951]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  448.744406]  ? prepare_exit_to_usermode+0x291/0x3b0
[  448.749426]  ? page_fault+0x8/0x30
[  448.752972]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  448.757819]  ? page_fault+0x8/0x30
[  448.761371]  page_fault+0x1e/0x30
[  448.764820] RIP: 0033:0x40f9c0
[  448.768032] Code: Bad RIP value.
[  448.771394] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  448.776754] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  448.784028] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  448.791337] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  448.799109] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  448.806479] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  448.814300] warn_alloc_show_mem: 1 callbacks suppressed
[  448.814312] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  448.814313] Mem-Info:
[  448.814344] active_anon:54833 inactive_anon:712 isolated_anon:0
[  448.814344]  active_file:11 inactive_file:12 isolated_file:0
[  448.814344]  unevictable:0 dirty:0 writeback:0 unstable:0
[  448.814344]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  448.814344]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  448.814344]  free:13768 free_pcp:742 free_cma:0
[  448.819682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  448.826439] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  448.828837] Call Trace:
[  448.861698] 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
[  448.871041]  <IRQ>
[  448.898601] lowmem_reserve[]: 0 2818 6321 6321
[  448.901192]  dump_stack+0x244/0x39d
[  448.927274] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  448.929431]  ? dump_stack_print_info.cold.1+0x20/0x20
[  448.933990] lowmem_reserve[]: 0 0 3503 3503
[  448.937620]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.965365] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  448.970547]  ? do_raw_spin_lock+0x14f/0x350
[  448.974842] lowmem_reserve[]: 0 0 0 0
[  448.980381]  nmi_cpu_backtrace.cold.2+0x5c/0xa1
[  449.009530] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  449.013848]  ? lapic_can_unplug_cpu.cold.27+0x3f/0x3f
[  449.017622] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  449.022297]  nmi_trigger_cpumask_backtrace+0x1e8/0x22a
[  449.035781] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  449.040975]  arch_trigger_cpumask_backtrace+0x14/0x20
[  449.056649] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  449.061911]  rcu_dump_cpu_stacks+0x16f/0x1bc
[  449.077238] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  449.082420]  print_cpu_stall.cold.67+0x1f3/0x3c7
[  449.091253] 782 total pagecache pages
[  449.095688]  ? print_other_cpu_stall+0x160/0x160
[  449.104247] 0 pages in swap cache
[  449.108998]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.112794] Swap cache stats: add 0, delete 0, find 0/0
[  449.117537]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.120966] Free swap  = 0kB
[  449.126501]  ? do_trace_rcu_torture_read+0x10/0x10
[  449.131838] Total swap = 0kB
[  449.137368]  ? rcu_preempt_need_deferred_qs+0x74/0x1f0
[  449.140377] 1965979 pages RAM
[  449.145315]  ? __lock_is_held+0xb5/0x140
[  449.148327] 0 pages HighMem/MovableOnly
[  449.148335] 342853 pages reserved
[  449.153605]  ? __rcu_read_lock+0x50/0x50
[  449.156689] 0 pages cma reserved
[  449.160746]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.164792] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  449.168504]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.172632] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  449.175908]  ? check_preemption_disabled+0x48/0x280
[  449.181420] syz-fuzzer cpuset=/ mems_allowed=0
[  449.187910]  rcu_check_callbacks+0xf3b/0x13f0
[  449.217674]  ? rcutree_dead_cpu+0x10/0x10
[  449.221824]  ? lock_downgrade+0x900/0x900
[  449.225976]  ? lock_release+0x930/0xa00
[  449.229958]  ? zap_class+0x640/0x640
[  449.233687]  ? zap_class+0x640/0x640
[  449.237403]  ? mark_held_locks+0x130/0x130
[  449.241636]  ? zap_class+0x640/0x640
[  449.245371]  ? zap_class+0x640/0x640
[  449.249086]  ? find_held_lock+0x36/0x1c0
[  449.253159]  ? cpuacct_account_field+0x219/0x3d0
[  449.257923]  ? zap_class+0x640/0x640
[  449.261732]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.267271]  ? check_preemption_disabled+0x48/0x280
[  449.272309]  ? trace_hardirqs_off+0xb8/0x310
[  449.276718]  ? __lock_is_held+0xb5/0x140
[  449.280777]  ? trace_hardirqs_on+0x310/0x310
[  449.285193]  ? check_preemption_disabled+0x48/0x280
[  449.290220]  ? raise_softirq+0x199/0x420
[  449.294280]  ? raise_softirq_irqoff+0x2e0/0x2e0
[  449.298951]  ? account_system_index_time+0x333/0x5d0
[  449.304069]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.309622]  ? check_preemption_disabled+0x48/0x280
[  449.314644]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  449.320186]  ? hrtimer_run_queues+0x9a/0x400
[  449.324602]  ? run_local_timers+0x19b/0x230
[  449.328929]  ? timer_clear_idle+0x90/0x90
[  449.333085]  ? irqtime_account_process_tick.isra.6+0x38e/0x490
[  449.339067]  ? account_process_tick+0x282/0x350
[  449.343750]  update_process_times+0x2d/0x70
[  449.348097]  tick_sched_handle+0x9f/0x180
[  449.352248]  tick_sched_timer+0x45/0x130
[  449.356314]  __hrtimer_run_queues+0x41c/0x10d0
[  449.360908]  ? tick_sched_do_timer+0x1a0/0x1a0
[  449.365493]  ? hrtimer_start_range_ns+0xe00/0xe00
[  449.370350]  ? pvclock_read_flags+0x160/0x160
[  449.374857]  ? trace_hardirqs_on+0x310/0x310
[  449.379273]  ? kvm_clock_read+0x18/0x30
[  449.383254]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  449.388299]  ? ktime_get_update_offsets_now+0x3b3/0x540
[  449.393668]  ? do_timer+0x50/0x50
[  449.397122]  ? rwlock_bug.part.2+0x90/0x90
[  449.401402]  ? trace_hardirqs_on+0x310/0x310
[  449.405832]  ? rcu_softirq_qs+0x20/0x20
[  449.409814]  hrtimer_interrupt+0x313/0x780
[  449.414073]  smp_apic_timer_interrupt+0x1a1/0x760
[  449.418922]  ? smp_call_function_single_interrupt+0x650/0x650
[  449.424806]  ? interrupt_entry+0xb5/0xc0
[  449.428877]  ? trace_hardirqs_off_caller+0xbb/0x310
[  449.433893]  ? trace_hardirqs_off_caller+0xbb/0x310
[  449.438911]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  449.443753]  ? trace_hardirqs_on_caller+0x310/0x310
[  449.448780]  ? trace_hardirqs_on_caller+0x310/0x310
[  449.453796]  ? task_prio+0x50/0x50
[  449.457339]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.462878]  ? check_preemption_disabled+0x48/0x280
[  449.467903]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  449.472781]  apic_timer_interrupt+0xf/0x20
[  449.477018]  </IRQ>
[  449.479276] RIP: 0010:kmem_cache_alloc_node+0x247/0x730
[  449.484651] Code: 3f 7e 0f 85 32 ff ff ff e8 75 1d 3e ff e9 28 ff ff ff e8 ec 52 c3 ff 48 83 3d f4 9b 8f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 d2 ac
[  449.503560] RSP: 0000:ffff8801d9aff410 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  449.511264] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003b35e15c
[  449.518532] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
[  449.525799] RBP: ffff8801d9aff480 R08: ffff8801d9af0ae0 R09: 0000000000000002
[  449.533067] R10: 0000000000000000 R11: ffff8801d9af0240 R12: ffff8801d9beec00
[  449.540353] R13: ffff8801d9beec00 R14: 0000000000000000 R15: 0000000000000286
[  449.547682]  ? ipv6_get_ifaddr+0x42e/0x620
[  449.551927]  __alloc_skb+0x119/0x770
[  449.555635]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  449.560931]  ? netdev_alloc_frag+0x1f0/0x1f0
[  449.565341]  ? lock_downgrade+0x900/0x900
[  449.569494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.575066]  ? refcount_sub_and_test_checked+0x203/0x310
[  449.580535]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  449.585985]  ? addrconf_rs_timer+0x690/0x690
[  449.590420]  ndisc_alloc_skb+0x144/0x340
[  449.594483]  ndisc_send_rs+0x331/0x6e0
[  449.598393]  addrconf_rs_timer+0x314/0x690
[  449.602634]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  449.606879]  call_timer_fn+0x272/0x920
[  449.610779]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  449.615018]  ? process_timeout+0x40/0x40
[  449.619095]  ? __run_timers+0x7da/0xc70
[  449.623076]  ? _raw_spin_unlock_irq+0x27/0x80
[  449.627587]  ? _raw_spin_unlock_irq+0x27/0x80
[  449.632083]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  449.636322]  ? lockdep_hardirqs_on+0x296/0x5b0
[  449.640907]  ? trace_hardirqs_on+0xbd/0x310
[  449.645230]  ? kasan_check_read+0x11/0x20
[  449.649373]  ? __run_timers+0x7da/0xc70
[  449.653350]  ? trace_hardirqs_off_caller+0x310/0x310
[  449.658493]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  449.662732]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  449.667033]  __run_timers+0x7e5/0xc70
[  449.670854]  ? timer_fixup_init+0x70/0x70
[  449.675018]  ? _raw_spin_unlock_irq+0x27/0x80
[  449.679513]  ? _raw_spin_unlock_irq+0x27/0x80
[  449.684036]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  449.688687]  ? trace_hardirqs_on+0xbd/0x310
[  449.693088]  ? kasan_check_read+0x11/0x20
[  449.697243]  ? finish_task_switch+0x1f4/0x910
[  449.701742]  ? trace_hardirqs_off_caller+0x310/0x310
[  449.706848]  ? compat_start_thread+0x80/0x80
[  449.711279]  ? pvclock_read_flags+0x160/0x160
[  449.715803]  ? __switch_to_asm+0x34/0x70
[  449.719886]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.725430]  ? check_preemption_disabled+0x48/0x280
[  449.730458]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  449.736000]  ? rcu_pm_notify+0xc0/0xc0
[  449.739900]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.745453]  ? check_preemption_disabled+0x48/0x280
[  449.750473]  run_timer_softirq+0x52/0xb0
[  449.754551]  ? rcu_read_lock_sched_held+0x14f/0x180
[  449.759582]  __do_softirq+0x308/0xb7e
[  449.763382]  ? retint_kernel+0x2d/0x2d
[  449.767274]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  449.772384]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  449.777831]  ? trace_hardirqs_on+0x310/0x310
[  449.782242]  ? schedule+0x108/0x460
[  449.785908]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  449.790672]  ? trace_hardirqs_off+0xb8/0x310
[  449.795079]  ? smpboot_thread_fn+0x68b/0xa00
[  449.799518]  ? trace_hardirqs_on+0x310/0x310
[  449.803940]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  449.809488]  ? check_preemption_disabled+0x48/0x280
[  449.814503]  ? takeover_tasklets+0xa90/0xa90
[  449.818909]  run_ksoftirqd+0x5e/0x100
[  449.822711]  smpboot_thread_fn+0x68b/0xa00
[  449.826950]  ? sort_range+0x30/0x30
[  449.830579]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  449.835684]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  449.841225]  ? __kthread_parkme+0xfb/0x1a0
[  449.845479]  ? sort_range+0x30/0x30
[  449.849107]  kthread+0x35a/0x440
[  449.852475]  ? kthread_stop+0x900/0x900
[  449.856449]  ret_from_fork+0x3a/0x50
[  449.860183] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  449.860590] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  449.867219] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  449.867227] Call Trace:
[  449.873790] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  449.883217]  <IRQ>
[  449.885791] ksoftirqd/0 cpuset=/ mems_allowed=0
[  449.896121]  dump_stack+0x244/0x39d
[  449.906523]  ? dump_stack_print_info.cold.1+0x20/0x20
[  449.911725]  warn_alloc.cold.116+0xb7/0x1bd
[  449.916056]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  449.920902]  ? lock_downgrade+0x900/0x900
[  449.925065]  ? trace_hardirqs_off+0xb8/0x310
[  449.929479]  ? trace_hardirqs_off+0xb8/0x310
[  449.933897]  __alloc_pages_slowpath+0x26e8/0x2e10
[  449.938817]  ? warn_alloc+0x120/0x120
[  449.942624]  ? print_usage_bug+0xc0/0xc0
[  449.946687]  ? warn_alloc+0x120/0x120
[  449.950498]  ? warn_alloc+0x120/0x120
[  449.954303]  ? print_usage_bug+0xc0/0xc0
[  449.958367]  ? kvm_clock_read+0x18/0x30
[  449.962401]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  449.967437]  ? print_usage_bug+0xc0/0xc0
[  449.971499]  ? __lock_acquire+0x62f/0x4c20
[  449.975741]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  449.981295]  ? should_fail+0x22d/0xd01
[  449.985180]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  449.990460]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  449.995563]  ? __lock_acquire+0x62f/0x4c20
[  449.999804]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  450.004919]  ? __lock_acquire+0x62f/0x4c20
[  450.009152]  ? should_fail+0x22d/0xd01
[  450.013043]  ? rcu_irq_exit+0x1a2/0x390
[  450.017036]  ? mark_held_locks+0x130/0x130
[  450.021294]  ? mark_held_locks+0x130/0x130
[  450.025567]  ? mark_held_locks+0xc7/0x130
[  450.029746]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  450.034760]  ? zap_class+0x640/0x640
[  450.038485]  ? print_usage_bug+0xc0/0xc0
[  450.042559]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.048123]  ? check_preemption_disabled+0x48/0x280
[  450.053147]  ? __lock_is_held+0xb5/0x140
[  450.057216]  __alloc_pages_nodemask+0xa80/0xde0
[  450.061883]  ? zap_class+0x640/0x640
[  450.065601]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  450.070631]  ? find_held_lock+0x36/0x1c0
[  450.074711]  ? ____cache_alloc_node+0x1c7/0x1e0
[  450.079381]  ? lock_downgrade+0x900/0x900
[  450.083534]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.089099]  cache_grow_begin+0xa5/0x8c0
[  450.093176]  ? do_raw_spin_unlock+0xa7/0x330
[  450.097590]  fallback_alloc+0x204/0x2e0
[  450.101570]  ____cache_alloc_node+0x1c7/0x1e0
[  450.106075]  kmem_cache_alloc_node+0xe3/0x730
[  450.110571]  ? ipv6_get_ifaddr+0x42e/0x620
[  450.114844]  __alloc_skb+0x119/0x770
[  450.118555]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  450.123838]  ? netdev_alloc_frag+0x1f0/0x1f0
[  450.128260]  ? lock_downgrade+0x900/0x900
[  450.132415]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.137953]  ? refcount_sub_and_test_checked+0x203/0x310
[  450.143408]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  450.148862]  ? addrconf_rs_timer+0x690/0x690
[  450.153283]  ndisc_alloc_skb+0x144/0x340
[  450.157350]  ndisc_send_rs+0x331/0x6e0
[  450.161243]  addrconf_rs_timer+0x314/0x690
[  450.165528]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.169815]  call_timer_fn+0x272/0x920
[  450.173708]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.177946]  ? process_timeout+0x40/0x40
[  450.182028]  ? mark_held_locks+0xc7/0x130
[  450.186178]  ? _raw_spin_unlock_irq+0x27/0x80
[  450.190672]  ? _raw_spin_unlock_irq+0x27/0x80
[  450.195179]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.199433]  ? lockdep_hardirqs_on+0x296/0x5b0
[  450.204026]  ? trace_hardirqs_on+0xbd/0x310
[  450.208378]  ? kasan_check_read+0x11/0x20
[  450.212525]  ? __run_timers+0x7da/0xc70
[  450.216503]  ? trace_hardirqs_off_caller+0x310/0x310
[  450.221609]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.225856]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  450.230107]  __run_timers+0x7e5/0xc70
[  450.233918]  ? timer_fixup_init+0x70/0x70
[  450.238085]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  450.243107]  ? zap_class+0x640/0x640
[  450.246846]  ? print_usage_bug+0xc0/0xc0
[  450.250910]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  450.256114]  ? find_held_lock+0x36/0x1c0
[  450.260184]  ? zap_class+0x640/0x640
[  450.263924]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.269464]  ? check_preemption_disabled+0x48/0x280
[  450.274503]  ? __lock_is_held+0xb5/0x140
[  450.278563]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.284108]  ? check_preemption_disabled+0x48/0x280
[  450.289130]  run_timer_softirq+0x52/0xb0
[  450.293193]  ? rcu_read_lock_sched_held+0x14f/0x180
[  450.298223]  __do_softirq+0x308/0xb7e
[  450.302048]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  450.306549]  ? lock_downgrade+0x900/0x900
[  450.310703]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  450.315818]  ? pvclock_read_flags+0x160/0x160
[  450.320314]  ? lapic_next_event+0x5a/0x90
[  450.324466]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.330022]  ? kvm_clock_read+0x18/0x30
[  450.333996]  ? kvm_sched_clock_read+0x9/0x20
[  450.338428]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.343980]  ? check_preemption_disabled+0x48/0x280
[  450.349008]  irq_exit+0x17f/0x1c0
[  450.352477]  smp_apic_timer_interrupt+0x1cb/0x760
[  450.357321]  ? smp_call_function_single_interrupt+0x159/0x650
[  450.363207]  ? smp_call_function_single_interrupt+0x650/0x650
[  450.369106]  ? interrupt_entry+0xb5/0xc0
[  450.373167]  ? trace_hardirqs_off_caller+0xbb/0x310
[  450.378178]  ? trace_hardirqs_off_caller+0xbb/0x310
[  450.383196]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  450.388045]  ? trace_hardirqs_on_caller+0x310/0x310
[  450.393066]  ? trace_hardirqs_on_caller+0x310/0x310
[  450.398080]  ? task_prio+0x50/0x50
[  450.401624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.407192]  ? check_preemption_disabled+0x48/0x280
[  450.412213]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  450.417098]  apic_timer_interrupt+0xf/0x20
[  450.421326]  </IRQ>
[  450.423583] RIP: 0010:dump_stack+0x358/0x39d
[  450.427992] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  450.446903] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  450.454643] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  450.461915] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  450.469189] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  450.476455] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  450.483721] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  450.491022]  ? dump_stack+0x34f/0x39d
[  450.494838]  ? dump_stack_print_info.cold.1+0x20/0x20
[  450.500038]  ? mark_held_locks+0x130/0x130
[  450.504275]  ? mark_held_locks+0x130/0x130
[  450.508515]  dump_header+0x27b/0xf72
[  450.512245]  ? pagefault_out_of_memory+0x197/0x197
[  450.517185]  ? __lock_acquire+0x62f/0x4c20
[  450.521429]  ? percpu_ref_get_many+0x240/0x240
[  450.526022]  ? print_usage_bug+0xc0/0xc0
[  450.530094]  ? zap_class+0x640/0x640
[  450.533811]  ? print_usage_bug+0xc0/0xc0
[  450.537874]  ? print_usage_bug+0xc0/0xc0
[  450.541933]  ? zap_class+0x640/0x640
[  450.545652]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.551194]  ? find_held_lock+0x36/0x1c0
[  450.555264]  ? mark_held_locks+0xc7/0x130
[  450.559418]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  450.564519]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  450.569648]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  450.574235]  ? trace_hardirqs_on+0xbd/0x310
[  450.578558]  ? kasan_check_read+0x11/0x20
[  450.582709]  ? ___ratelimit+0x3b4/0x672
[  450.586692]  ? trace_hardirqs_off_caller+0x310/0x310
[  450.591815]  ? trace_hardirqs_on+0x310/0x310
[  450.596227]  ? lock_downgrade+0x900/0x900
[  450.600385]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  450.605493]  ? ___ratelimit+0x3b9/0x672
[  450.609490]  ? idr_get_free+0xf70/0xf70
[  450.613467]  ? find_held_lock+0x36/0x1c0
[  450.617553]  oom_kill_process.cold.27+0x10/0x903
[  450.622310]  ? zap_class+0x640/0x640
[  450.626034]  ? check_preemption_disabled+0x48/0x280
[  450.631055]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  450.636052]  ? kasan_check_read+0x11/0x20
[  450.640220]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  450.645499]  ? oom_evaluate_task+0x540/0x540
[  450.649909]  ? find_held_lock+0x36/0x1c0
[  450.653982]  ? out_of_memory+0x974/0x1430
[  450.658137]  ? lock_downgrade+0x900/0x900
[  450.662300]  ? check_preemption_disabled+0x48/0x280
[  450.667321]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  450.672254]  ? kasan_check_read+0x11/0x20
[  450.676421]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  450.681702]  ? rcu_softirq_qs+0x20/0x20
[  450.685686]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.691236]  ? oom_evaluate_task+0x302/0x540
[  450.695652]  out_of_memory+0xa84/0x1430
[  450.699652]  ? oom_killer_disable+0x3a0/0x3a0
[  450.704149]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  450.709098]  ? __ww_mutex_check_waiters+0x160/0x160
[  450.714125]  __alloc_pages_slowpath+0x2354/0x2e10
[  450.718999]  ? warn_alloc+0x120/0x120
[  450.722815]  ? mark_held_locks+0x130/0x130
[  450.727054]  ? find_get_entry+0xaae/0x1120
[  450.731298]  ? filemap_map_pages+0x1a20/0x1a20
[  450.735900]  ? zap_class+0x640/0x640
[  450.739641]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.745183]  ? check_preemption_disabled+0x48/0x280
[  450.750200]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.755741]  ? should_fail+0x22d/0xd01
[  450.759633]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  450.764741]  ? zap_class+0x640/0x640
[  450.768484]  ? __lock_is_held+0xb5/0x140
[  450.772558]  ? mark_held_locks+0x130/0x130
[  450.776805]  ? lock_release+0xa00/0xa00
[  450.780789]  ? perf_trace_sched_process_exec+0x860/0x860
[  450.786243]  ? xa_load+0x2ba/0x460
[  450.789803]  ? lock_downgrade+0x900/0x900
[  450.793970]  ? __might_sleep+0x95/0x190
[  450.797987]  __alloc_pages_nodemask+0xa80/0xde0
[  450.803210]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  450.808234]  ? __page_cache_alloc+0x191/0x5c0
[  450.812732]  ? xa_load+0x2e1/0x460
[  450.816277]  ? xa_clear_mark+0x40/0x40
[  450.820174]  ? zap_class+0x640/0x640
[  450.823897]  ? zap_class+0x640/0x640
[  450.827621]  ? zap_class+0x640/0x640
[  450.831355]  ? __do_page_cache_readahead+0x663/0x810
[  450.836467]  ? find_held_lock+0x36/0x1c0
[  450.840534]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  450.846079]  alloc_pages_current+0x173/0x350
[  450.850497]  __page_cache_alloc+0x38c/0x5c0
[  450.854817]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  450.859746]  ? kasan_check_read+0x11/0x20
[  450.863892]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  450.869168]  ? generic_perform_write+0x6a0/0x6a0
[  450.873926]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.879465]  ? check_preemption_disabled+0x48/0x280
[  450.884488]  filemap_fault+0x1595/0x25f0
[  450.888567]  ? __lock_page_or_retry+0xa00/0xa00
[  450.893238]  ? mark_held_locks+0x130/0x130
[  450.897496]  ? filemap_map_pages+0xd6b/0x1a20
[  450.902000]  ? lock_downgrade+0x900/0x900
[  450.906176]  ? check_preemption_disabled+0x48/0x280
[  450.911200]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  450.916143]  ? kasan_check_read+0x11/0x20
[  450.920297]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  450.925573]  ? rcu_softirq_qs+0x20/0x20
[  450.929571]  ? filemap_map_pages+0xd92/0x1a20
[  450.934102]  ? find_get_entries_tag+0x1400/0x1400
[  450.938970]  ? debug_object_destroy+0x2b0/0x2b0
[  450.943642]  ? lock_pi_update_atomic+0x150/0x150
[  450.948409]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.953959]  ? lock_acquire+0x1ed/0x520
[  450.957930]  ? ext4_filemap_fault+0x7a/0xad
[  450.962259]  ? lock_release+0xa00/0xa00
[  450.966234]  ? perf_trace_sched_process_exec+0x860/0x860
[  450.971700]  ? print_usage_bug+0xc0/0xc0
[  450.975764]  ? print_usage_bug+0xc0/0xc0
[  450.979841]  ? down_read+0x8d/0x120
[  450.983461]  ? ext4_filemap_fault+0x7a/0xad
[  450.987800]  ? __down_interruptible+0x700/0x700
[  450.992530]  ext4_filemap_fault+0x82/0xad
[  450.996706]  __do_fault+0x100/0x6b0
[  451.000336]  ? pmd_devmap_trans_unstable+0x220/0x220
[  451.005477]  ? mark_held_locks+0x130/0x130
[  451.009727]  ? mark_held_locks+0x130/0x130
[  451.013966]  ? debug_smp_processor_id+0x1c/0x20
[  451.018637]  ? perf_trace_lock+0x14d/0x7a0
[  451.022881]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.028424]  __handle_mm_fault+0x3ea0/0x5be0
[  451.032840]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  451.037682]  ? lock_is_held_type+0x210/0x210
[  451.042112]  ? ksys_dup3+0x680/0x680
[  451.045841]  ? zap_class+0x640/0x640
[  451.049571]  ? zap_class+0x640/0x640
[  451.053296]  ? __x64_sys_futex+0x53e/0x6a0
[  451.057533]  ? find_held_lock+0x36/0x1c0
[  451.061603]  ? handle_mm_fault+0x42a/0xc70
[  451.065855]  ? lock_downgrade+0x900/0x900
[  451.070004]  ? check_preemption_disabled+0x48/0x280
[  451.075056]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  451.079986]  ? kasan_check_read+0x11/0x20
[  451.084154]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.089432]  ? rcu_softirq_qs+0x20/0x20
[  451.093410]  ? trace_hardirqs_off_caller+0x310/0x310
[  451.098540]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.104078]  ? check_preemption_disabled+0x48/0x280
[  451.109189]  handle_mm_fault+0x54f/0xc70
[  451.113253]  ? __handle_mm_fault+0x5be0/0x5be0
[  451.117842]  ? find_vma+0x34/0x190
[  451.121402]  __do_page_fault+0x5e8/0xe60
[  451.125469]  ? trace_hardirqs_off+0xb8/0x310
[  451.129919]  do_page_fault+0xf2/0x7e0
[  451.133748]  ? vmalloc_sync_all+0x30/0x30
[  451.137896]  ? error_entry+0x70/0xd0
[  451.141622]  ? trace_hardirqs_off_caller+0xbb/0x310
[  451.146651]  ? trace_hardirqs_on_caller+0xc0/0x310
[  451.151594]  ? syscall_return_slowpath+0x5e0/0x5e0
[  451.156520]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  451.161366]  ? trace_hardirqs_on_caller+0x310/0x310
[  451.166384]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  451.171836]  ? prepare_exit_to_usermode+0x291/0x3b0
[  451.176866]  ? page_fault+0x8/0x30
[  451.180421]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  451.185269]  ? page_fault+0x8/0x30
[  451.188817]  page_fault+0x1e/0x30
[  451.192273] RIP: 0033:0x40f9c0
[  451.195479] Code: Bad RIP value.
[  451.198860] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  451.204221] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  451.211498] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  451.218801] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  451.226068] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  451.233591] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  451.240915] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  451.240917] Mem-Info:
[  451.240948] active_anon:54833 inactive_anon:712 isolated_anon:0
[  451.240948]  active_file:11 inactive_file:12 isolated_file:0
[  451.240948]  unevictable:0 dirty:0 writeback:0 unstable:0
[  451.240948]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  451.240948]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  451.240948]  free:13768 free_pcp:742 free_cma:0
[  451.247679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  451.250122] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  451.282964] Call Trace:
[  451.292304] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  451.319887]  dump_stack+0x244/0x39d
[  451.322443] lowmem_reserve[]: 0 2818 6321 6321
[  451.348549]  ? dump_stack_print_info.cold.1+0x20/0x20
[  451.352149] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  451.356739]  warn_alloc.cold.116+0xb7/0x1bd
[  451.361909] lowmem_reserve[]: 0 0 3503 3503
[  451.389673]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  451.393969] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  451.398296]  ? lock_downgrade+0x900/0x900
[  451.403101] lowmem_reserve[]: 0 0 0 0
[  451.432260]  ? trace_hardirqs_off+0xb8/0x310
[  451.436382] 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
[  451.440177]  ? trace_hardirqs_off+0xb8/0x310
[  451.444559] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  451.458080]  __alloc_pages_slowpath+0x26e8/0x2e10
[  451.462459] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  451.478165]  ? warn_alloc+0x120/0x120
[  451.482973] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  451.498308]  ? print_usage_bug+0xc0/0xc0
[  451.502090] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  451.510909]  ? warn_alloc+0x120/0x120
[  451.514944] 782 total pagecache pages
[  451.523514]  ? warn_alloc+0x120/0x120
[  451.527298] 0 pages in swap cache
[  451.531108]  ? print_usage_bug+0xc0/0xc0
[  451.534904] Swap cache stats: add 0, delete 0, find 0/0
[  451.538344]  ? print_usage_bug+0xc0/0xc0
[  451.542377] Free swap  = 0kB
[  451.547735]  ? __lock_acquire+0x62f/0x4c20
[  451.551768] Total swap = 0kB
[  451.554782]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.558990] 1965979 pages RAM
[  451.562007]  ? should_fail+0x22d/0xd01
[  451.567545] 0 pages HighMem/MovableOnly
[  451.570642]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  451.574503] 342853 pages reserved
[  451.578471]  ? __lock_acquire+0x62f/0x4c20
[  451.583550] 0 pages cma reserved
[  451.586998]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  451.591283] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  451.594567]  ? __lock_acquire+0x62f/0x4c20
[  451.594583]  ? should_fail+0x22d/0xd01
[  451.599757] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  451.606155]  ? find_held_lock+0x36/0x1c0
[  451.610367] syz-fuzzer cpuset=/ mems_allowed=0
[  451.614252]  ? mark_held_locks+0x130/0x130
[  451.637312]  ? mark_held_locks+0x130/0x130
[  451.641561]  ? zap_class+0x640/0x640
[  451.645280]  ? mark_held_locks+0xc7/0x130
[  451.649448]  ? do_raw_spin_unlock+0xa7/0x330
[  451.653860]  ? zap_class+0x640/0x640
[  451.657571]  ? print_usage_bug+0xc0/0xc0
[  451.661643]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.667354]  ? check_preemption_disabled+0x48/0x280
[  451.672381]  ? __lock_is_held+0xb5/0x140
[  451.676450]  __alloc_pages_nodemask+0xa80/0xde0
[  451.681122]  ? zap_class+0x640/0x640
[  451.684845]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  451.689877]  ? find_held_lock+0x36/0x1c0
[  451.693967]  ? ____cache_alloc_node+0x1c7/0x1e0
[  451.698652]  ? lock_downgrade+0x900/0x900
[  451.702809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.708353]  cache_grow_begin+0xa5/0x8c0
[  451.712438]  ? do_raw_spin_unlock+0xa7/0x330
[  451.716852]  fallback_alloc+0x204/0x2e0
[  451.720830]  ____cache_alloc_node+0x1c7/0x1e0
[  451.725337]  kmem_cache_alloc_node+0xe3/0x730
[  451.729838]  ? ipv6_get_ifaddr+0x42e/0x620
[  451.734086]  __alloc_skb+0x119/0x770
[  451.737797]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.743079]  ? netdev_alloc_frag+0x1f0/0x1f0
[  451.747490]  ? lock_downgrade+0x900/0x900
[  451.751649]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.757188]  ? refcount_sub_and_test_checked+0x203/0x310
[  451.762646]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  451.768099]  ? addrconf_rs_timer+0x690/0x690
[  451.772519]  ndisc_alloc_skb+0x144/0x340
[  451.776584]  ndisc_send_rs+0x331/0x6e0
[  451.780478]  addrconf_rs_timer+0x314/0x690
[  451.784721]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  451.788972]  call_timer_fn+0x272/0x920
[  451.792867]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  451.797104]  ? process_timeout+0x40/0x40
[  451.801171]  ? __run_timers+0x7da/0xc70
[  451.805146]  ? _raw_spin_unlock_irq+0x27/0x80
[  451.809638]  ? _raw_spin_unlock_irq+0x27/0x80
[  451.814129]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  451.818365]  ? lockdep_hardirqs_on+0x296/0x5b0
[  451.822953]  ? trace_hardirqs_on+0xbd/0x310
[  451.827280]  ? kasan_check_read+0x11/0x20
[  451.831443]  ? __run_timers+0x7da/0xc70
[  451.835434]  ? trace_hardirqs_off_caller+0x310/0x310
[  451.840540]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  451.844783]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  451.849044]  __run_timers+0x7e5/0xc70
[  451.852865]  ? timer_fixup_init+0x70/0x70
[  451.857019]  ? _raw_spin_unlock_irq+0x27/0x80
[  451.861522]  ? _raw_spin_unlock_irq+0x27/0x80
[  451.866023]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  451.870619]  ? trace_hardirqs_on+0xbd/0x310
[  451.874940]  ? kasan_check_read+0x11/0x20
[  451.879093]  ? finish_task_switch+0x1f4/0x910
[  451.883588]  ? trace_hardirqs_off_caller+0x310/0x310
[  451.888690]  ? compat_start_thread+0x80/0x80
[  451.893119]  ? pvclock_read_flags+0x160/0x160
[  451.897623]  ? __switch_to_asm+0x34/0x70
[  451.901688]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.907230]  ? check_preemption_disabled+0x48/0x280
[  451.912256]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  451.917828]  ? rcu_pm_notify+0xc0/0xc0
[  451.921719]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.927275]  ? check_preemption_disabled+0x48/0x280
[  451.932341]  run_timer_softirq+0x52/0xb0
[  451.936424]  ? rcu_read_lock_sched_held+0x14f/0x180
[  451.941457]  __do_softirq+0x308/0xb7e
[  451.945261]  ? retint_kernel+0x2d/0x2d
[  451.949158]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  451.954260]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  451.959718]  ? trace_hardirqs_on+0x310/0x310
[  451.964150]  ? schedule+0x108/0x460
[  451.967782]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  451.972548]  ? trace_hardirqs_off+0xb8/0x310
[  451.976960]  ? smpboot_thread_fn+0x68b/0xa00
[  451.981374]  ? trace_hardirqs_on+0x310/0x310
[  451.985786]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.991342]  ? check_preemption_disabled+0x48/0x280
[  451.996362]  ? takeover_tasklets+0xa90/0xa90
[  452.000777]  run_ksoftirqd+0x5e/0x100
[  452.004582]  smpboot_thread_fn+0x68b/0xa00
[  452.008839]  ? sort_range+0x30/0x30
[  452.012465]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  452.017566]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.023121]  ? __kthread_parkme+0xfb/0x1a0
[  452.027361]  ? sort_range+0x30/0x30
[  452.030987]  kthread+0x35a/0x440
[  452.034376]  ? kthread_stop+0x900/0x900
[  452.038383]  ret_from_fork+0x3a/0x50
[  452.042203] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  452.042271] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  452.049145] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  452.049153] Call Trace:
[  452.055735] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  452.064991]  <IRQ>
[  452.067567] ksoftirqd/0 cpuset=/ mems_allowed=0
[  452.077873]  dump_stack+0x244/0x39d
[  452.088285]  ? dump_stack_print_info.cold.1+0x20/0x20
[  452.093493]  warn_alloc.cold.116+0xb7/0x1bd
[  452.097820]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  452.102668]  ? lock_downgrade+0x900/0x900
[  452.106839]  ? trace_hardirqs_off+0xb8/0x310
[  452.111253]  ? trace_hardirqs_off+0xb8/0x310
[  452.115672]  __alloc_pages_slowpath+0x26e8/0x2e10
[  452.120550]  ? warn_alloc+0x120/0x120
[  452.124353]  ? print_usage_bug+0xc0/0xc0
[  452.128421]  ? warn_alloc+0x120/0x120
[  452.132226]  ? warn_alloc+0x120/0x120
[  452.136038]  ? print_usage_bug+0xc0/0xc0
[  452.140101]  ? kvm_clock_read+0x18/0x30
[  452.144076]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  452.149100]  ? print_usage_bug+0xc0/0xc0
[  452.153193]  ? __lock_acquire+0x62f/0x4c20
[  452.157435]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.162996]  ? should_fail+0x22d/0xd01
[  452.166885]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  452.172168]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  452.177276]  ? __lock_acquire+0x62f/0x4c20
[  452.181516]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  452.186619]  ? __lock_acquire+0x62f/0x4c20
[  452.190851]  ? should_fail+0x22d/0xd01
[  452.194767]  ? rcu_irq_exit+0x1a2/0x390
[  452.198771]  ? mark_held_locks+0x130/0x130
[  452.203026]  ? mark_held_locks+0x130/0x130
[  452.207271]  ? mark_held_locks+0xc7/0x130
[  452.211432]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  452.216477]  ? zap_class+0x640/0x640
[  452.220196]  ? print_usage_bug+0xc0/0xc0
[  452.224262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.229806]  ? check_preemption_disabled+0x48/0x280
[  452.234841]  ? __lock_is_held+0xb5/0x140
[  452.238918]  __alloc_pages_nodemask+0xa80/0xde0
[  452.243585]  ? zap_class+0x640/0x640
[  452.247317]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  452.252348]  ? find_held_lock+0x36/0x1c0
[  452.256420]  ? ____cache_alloc_node+0x1c7/0x1e0
[  452.261095]  ? lock_downgrade+0x900/0x900
[  452.265257]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.270810]  cache_grow_begin+0xa5/0x8c0
[  452.274901]  ? do_raw_spin_unlock+0xa7/0x330
[  452.279318]  fallback_alloc+0x204/0x2e0
[  452.283299]  ____cache_alloc_node+0x1c7/0x1e0
[  452.287806]  kmem_cache_alloc_node+0xe3/0x730
[  452.292308]  ? ipv6_get_ifaddr+0x42e/0x620
[  452.296555]  __alloc_skb+0x119/0x770
[  452.300268]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  452.305552]  ? netdev_alloc_frag+0x1f0/0x1f0
[  452.309965]  ? lock_downgrade+0x900/0x900
[  452.314153]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.319691]  ? refcount_sub_and_test_checked+0x203/0x310
[  452.325147]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  452.330605]  ? addrconf_rs_timer+0x690/0x690
[  452.335035]  ndisc_alloc_skb+0x144/0x340
[  452.339109]  ndisc_send_rs+0x331/0x6e0
[  452.343001]  addrconf_rs_timer+0x314/0x690
[  452.347252]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  452.351498]  call_timer_fn+0x272/0x920
[  452.355386]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  452.359649]  ? process_timeout+0x40/0x40
[  452.363734]  ? mark_held_locks+0xc7/0x130
[  452.367915]  ? _raw_spin_unlock_irq+0x27/0x80
[  452.372414]  ? _raw_spin_unlock_irq+0x27/0x80
[  452.376915]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  452.381150]  ? lockdep_hardirqs_on+0x296/0x5b0
[  452.385736]  ? trace_hardirqs_on+0xbd/0x310
[  452.390063]  ? kasan_check_read+0x11/0x20
[  452.394215]  ? __run_timers+0x7da/0xc70
[  452.398195]  ? trace_hardirqs_off_caller+0x310/0x310
[  452.403305]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  452.407574]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  452.411839]  __run_timers+0x7e5/0xc70
[  452.415666]  ? timer_fixup_init+0x70/0x70
[  452.419819]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  452.424838]  ? zap_class+0x640/0x640
[  452.428560]  ? print_usage_bug+0xc0/0xc0
[  452.432670]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  452.437872]  ? find_held_lock+0x36/0x1c0
[  452.441946]  ? zap_class+0x640/0x640
[  452.445661]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.451199]  ? check_preemption_disabled+0x48/0x280
[  452.456224]  ? __lock_is_held+0xb5/0x140
[  452.460284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.465851]  ? check_preemption_disabled+0x48/0x280
[  452.470872]  run_timer_softirq+0x52/0xb0
[  452.474932]  ? rcu_read_lock_sched_held+0x14f/0x180
[  452.479952]  __do_softirq+0x308/0xb7e
[  452.483758]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  452.488268]  ? lock_downgrade+0x900/0x900
[  452.492420]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  452.497532]  ? pvclock_read_flags+0x160/0x160
[  452.502088]  ? lapic_next_event+0x5a/0x90
[  452.506244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.511795]  ? kvm_clock_read+0x18/0x30
[  452.515789]  ? kvm_sched_clock_read+0x9/0x20
[  452.520203]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.525740]  ? check_preemption_disabled+0x48/0x280
[  452.530769]  irq_exit+0x17f/0x1c0
[  452.534232]  smp_apic_timer_interrupt+0x1cb/0x760
[  452.539075]  ? smp_call_function_single_interrupt+0x159/0x650
[  452.544964]  ? smp_call_function_single_interrupt+0x650/0x650
[  452.550847]  ? interrupt_entry+0xb5/0xc0
[  452.554910]  ? trace_hardirqs_off_caller+0xbb/0x310
[  452.559925]  ? trace_hardirqs_off_caller+0xbb/0x310
[  452.564943]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  452.569790]  ? trace_hardirqs_on_caller+0x310/0x310
[  452.574814]  ? trace_hardirqs_on_caller+0x310/0x310
[  452.579830]  ? task_prio+0x50/0x50
[  452.583371]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.588923]  ? check_preemption_disabled+0x48/0x280
[  452.593947]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  452.598806]  apic_timer_interrupt+0xf/0x20
[  452.603040]  </IRQ>
[  452.605279] RIP: 0010:dump_stack+0x358/0x39d
[  452.609688] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  452.628587] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  452.636332] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  452.643596] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  452.650862] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  452.658127] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  452.665393] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  452.672860]  ? dump_stack+0x34f/0x39d
[  452.676677]  ? dump_stack_print_info.cold.1+0x20/0x20
[  452.681888]  ? mark_held_locks+0x130/0x130
[  452.686142]  ? mark_held_locks+0x130/0x130
[  452.690424]  dump_header+0x27b/0xf72
[  452.694156]  ? pagefault_out_of_memory+0x197/0x197
[  452.699097]  ? __lock_acquire+0x62f/0x4c20
[  452.703338]  ? percpu_ref_get_many+0x240/0x240
[  452.707956]  ? print_usage_bug+0xc0/0xc0
[  452.712028]  ? zap_class+0x640/0x640
[  452.715778]  ? print_usage_bug+0xc0/0xc0
[  452.719847]  ? print_usage_bug+0xc0/0xc0
[  452.723908]  ? zap_class+0x640/0x640
[  452.727638]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.733183]  ? find_held_lock+0x36/0x1c0
[  452.737258]  ? mark_held_locks+0xc7/0x130
[  452.741408]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  452.746512]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  452.751621]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  452.756220]  ? trace_hardirqs_on+0xbd/0x310
[  452.760545]  ? kasan_check_read+0x11/0x20
[  452.764696]  ? ___ratelimit+0x3b4/0x672
[  452.768673]  ? trace_hardirqs_off_caller+0x310/0x310
[  452.773778]  ? trace_hardirqs_on+0x310/0x310
[  452.778194]  ? lock_downgrade+0x900/0x900
[  452.782366]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  452.787469]  ? ___ratelimit+0x3b9/0x672
[  452.791447]  ? idr_get_free+0xf70/0xf70
[  452.795421]  ? find_held_lock+0x36/0x1c0
[  452.799995]  oom_kill_process.cold.27+0x10/0x903
[  452.804793]  ? zap_class+0x640/0x640
[  452.808977]  ? check_preemption_disabled+0x48/0x280
[  452.813995]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  452.818934]  ? kasan_check_read+0x11/0x20
[  452.823082]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  452.828371]  ? oom_evaluate_task+0x540/0x540
[  452.832802]  ? find_held_lock+0x36/0x1c0
[  452.836868]  ? out_of_memory+0x974/0x1430
[  452.841024]  ? lock_downgrade+0x900/0x900
[  452.845172]  ? check_preemption_disabled+0x48/0x280
[  452.850200]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  452.855125]  ? kasan_check_read+0x11/0x20
[  452.859265]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  452.864536]  ? rcu_softirq_qs+0x20/0x20
[  452.868511]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.874042]  ? oom_evaluate_task+0x302/0x540
[  452.878454]  out_of_memory+0xa84/0x1430
[  452.882458]  ? oom_killer_disable+0x3a0/0x3a0
[  452.886953]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  452.891883]  ? __ww_mutex_check_waiters+0x160/0x160
[  452.896909]  __alloc_pages_slowpath+0x2354/0x2e10
[  452.901777]  ? warn_alloc+0x120/0x120
[  452.905577]  ? mark_held_locks+0x130/0x130
[  452.909836]  ? find_get_entry+0xaae/0x1120
[  452.914082]  ? filemap_map_pages+0x1a20/0x1a20
[  452.918681]  ? zap_class+0x640/0x640
[  452.922431]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.927980]  ? check_preemption_disabled+0x48/0x280
[  452.933041]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.938611]  ? should_fail+0x22d/0xd01
[  452.942505]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  452.947626]  ? zap_class+0x640/0x640
[  452.951380]  ? __lock_is_held+0xb5/0x140
[  452.955461]  ? mark_held_locks+0x130/0x130
[  452.959697]  ? lock_release+0xa00/0xa00
[  452.963682]  ? perf_trace_sched_process_exec+0x860/0x860
[  452.969135]  ? xa_load+0x2ba/0x460
[  452.972679]  ? lock_downgrade+0x900/0x900
[  452.976836]  ? __might_sleep+0x95/0x190
[  452.980818]  __alloc_pages_nodemask+0xa80/0xde0
[  452.985492]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  452.990508]  ? __page_cache_alloc+0x191/0x5c0
[  452.995001]  ? xa_load+0x2e1/0x460
[  452.998550]  ? xa_clear_mark+0x40/0x40
[  453.002445]  ? zap_class+0x640/0x640
[  453.006170]  ? zap_class+0x640/0x640
[  453.009885]  ? zap_class+0x640/0x640
[  453.013598]  ? __do_page_cache_readahead+0x663/0x810
[  453.018706]  ? find_held_lock+0x36/0x1c0
[  453.022770]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  453.028320]  alloc_pages_current+0x173/0x350
[  453.032749]  __page_cache_alloc+0x38c/0x5c0
[  453.037069]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  453.042001]  ? kasan_check_read+0x11/0x20
[  453.046160]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.051456]  ? generic_perform_write+0x6a0/0x6a0
[  453.056216]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.061755]  ? check_preemption_disabled+0x48/0x280
[  453.066790]  filemap_fault+0x1595/0x25f0
[  453.070883]  ? __lock_page_or_retry+0xa00/0xa00
[  453.075570]  ? mark_held_locks+0x130/0x130
[  453.079826]  ? filemap_map_pages+0xd6b/0x1a20
[  453.084325]  ? lock_downgrade+0x900/0x900
[  453.088475]  ? check_preemption_disabled+0x48/0x280
[  453.093495]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  453.098428]  ? kasan_check_read+0x11/0x20
[  453.102578]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.107855]  ? rcu_softirq_qs+0x20/0x20
[  453.111845]  ? filemap_map_pages+0xd92/0x1a20
[  453.116355]  ? find_get_entries_tag+0x1400/0x1400
[  453.121203]  ? debug_object_destroy+0x2b0/0x2b0
[  453.125880]  ? lock_pi_update_atomic+0x150/0x150
[  453.130636]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.136189]  ? lock_acquire+0x1ed/0x520
[  453.140163]  ? ext4_filemap_fault+0x7a/0xad
[  453.144494]  ? lock_release+0xa00/0xa00
[  453.148474]  ? perf_trace_sched_process_exec+0x860/0x860
[  453.153930]  ? print_usage_bug+0xc0/0xc0
[  453.157993]  ? print_usage_bug+0xc0/0xc0
[  453.162094]  ? down_read+0x8d/0x120
[  453.165722]  ? ext4_filemap_fault+0x7a/0xad
[  453.170052]  ? __down_interruptible+0x700/0x700
[  453.174733]  ext4_filemap_fault+0x82/0xad
[  453.178888]  __do_fault+0x100/0x6b0
[  453.182539]  ? pmd_devmap_trans_unstable+0x220/0x220
[  453.187646]  ? mark_held_locks+0x130/0x130
[  453.191881]  ? mark_held_locks+0x130/0x130
[  453.196117]  ? debug_smp_processor_id+0x1c/0x20
[  453.200817]  ? perf_trace_lock+0x14d/0x7a0
[  453.205061]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.210601]  __handle_mm_fault+0x3ea0/0x5be0
[  453.215051]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  453.219891]  ? lock_is_held_type+0x210/0x210
[  453.224317]  ? ksys_dup3+0x680/0x680
[  453.228045]  ? zap_class+0x640/0x640
[  453.231771]  ? zap_class+0x640/0x640
[  453.235486]  ? __x64_sys_futex+0x53e/0x6a0
[  453.239724]  ? find_held_lock+0x36/0x1c0
[  453.243797]  ? handle_mm_fault+0x42a/0xc70
[  453.248039]  ? lock_downgrade+0x900/0x900
[  453.252186]  ? check_preemption_disabled+0x48/0x280
[  453.257207]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  453.262132]  ? kasan_check_read+0x11/0x20
[  453.266294]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.271566]  ? rcu_softirq_qs+0x20/0x20
[  453.275534]  ? trace_hardirqs_off_caller+0x310/0x310
[  453.280632]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.286169]  ? check_preemption_disabled+0x48/0x280
[  453.291194]  handle_mm_fault+0x54f/0xc70
[  453.295255]  ? __handle_mm_fault+0x5be0/0x5be0
[  453.299838]  ? find_vma+0x34/0x190
[  453.303433]  __do_page_fault+0x5e8/0xe60
[  453.307508]  ? trace_hardirqs_off+0xb8/0x310
[  453.311929]  do_page_fault+0xf2/0x7e0
[  453.315748]  ? vmalloc_sync_all+0x30/0x30
[  453.319901]  ? error_entry+0x70/0xd0
[  453.323617]  ? trace_hardirqs_off_caller+0xbb/0x310
[  453.328645]  ? trace_hardirqs_on_caller+0xc0/0x310
[  453.333589]  ? syscall_return_slowpath+0x5e0/0x5e0
[  453.338518]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  453.343361]  ? trace_hardirqs_on_caller+0x310/0x310
[  453.348381]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  453.353837]  ? prepare_exit_to_usermode+0x291/0x3b0
[  453.358854]  ? page_fault+0x8/0x30
[  453.362398]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  453.367246]  ? page_fault+0x8/0x30
[  453.370788]  page_fault+0x1e/0x30
[  453.374247] RIP: 0033:0x40f9c0
[  453.377455] Code: Bad RIP value.
[  453.380820] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  453.386182] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  453.393450] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  453.400732] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  453.408002] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  453.415275] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  453.422602] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  453.422608] warn_alloc_show_mem: 1 callbacks suppressed
[  453.422615] Mem-Info:
[  453.429406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  453.434777] active_anon:54833 inactive_anon:712 isolated_anon:0
[  453.434777]  active_file:11 inactive_file:12 isolated_file:0
[  453.434777]  unevictable:0 dirty:0 writeback:0 unstable:0
[  453.434777]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  453.434777]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  453.434777]  free:13768 free_pcp:742 free_cma:0
[  453.437148] Call Trace:
[  453.446561] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  453.479434]  dump_stack+0x244/0x39d
[  453.481994] 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
[  453.509598]  ? dump_stack_print_info.cold.1+0x20/0x20
[  453.513204] lowmem_reserve[]: 0 2818 6321 6321
[  453.539334]  warn_alloc.cold.116+0xb7/0x1bd
[  453.544494] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  453.549087]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  453.553387] lowmem_reserve[]: 0 0 3503 3503
[  453.581141]  ? lock_downgrade+0x900/0x900
[  453.585954] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  453.590270]  ? trace_hardirqs_off+0xb8/0x310
[  453.594385] lowmem_reserve[]: 0 0 0 0
[  453.623534]  ? trace_hardirqs_off+0xb8/0x310
[  453.627916] 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
[  453.631714]  __alloc_pages_slowpath+0x26e8/0x2e10
[  453.636093] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  453.649635]  ? warn_alloc+0x120/0x120
[  453.654429] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  453.670297]  ? print_usage_bug+0xc0/0xc0
[  453.674073] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  453.689417]  ? warn_alloc+0x120/0x120
[  453.693474] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  453.702301]  ? warn_alloc+0x120/0x120
[  453.706075] 782 total pagecache pages
[  453.714644]  ? print_usage_bug+0xc0/0xc0
[  453.718434] 0 pages in swap cache
[  453.722235]  ? print_usage_bug+0xc0/0xc0
[  453.726275] Swap cache stats: add 0, delete 0, find 0/0
[  453.729720]  ? __lock_acquire+0x62f/0x4c20
[  453.733755] Free swap  = 0kB
[  453.739128]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.743337] Total swap = 0kB
[  453.746352]  ? should_fail+0x22d/0xd01
[  453.751860] 1965979 pages RAM
[  453.754876]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  453.758737] 0 pages HighMem/MovableOnly
[  453.761850]  ? __lock_acquire+0x62f/0x4c20
[  453.766941] 342853 pages reserved
[  453.770908]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  453.775116] 0 pages cma reserved
[  453.778561]  ? __lock_acquire+0x62f/0x4c20
[  453.783715] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  453.786993]  ? should_fail+0x22d/0xd01
[  453.787009]  ? find_held_lock+0x36/0x1c0
[  453.791315] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  453.797722]  ? mark_held_locks+0x130/0x130
[  453.802058] syz-fuzzer cpuset=/ mems_allowed=0
[  453.806147]  ? mark_held_locks+0x130/0x130
[  453.829349]  ? zap_class+0x640/0x640
[  453.833073]  ? mark_held_locks+0xc7/0x130
[  453.837226]  ? do_raw_spin_unlock+0xa7/0x330
[  453.841634]  ? zap_class+0x640/0x640
[  453.845348]  ? print_usage_bug+0xc0/0xc0
[  453.849419]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.854958]  ? check_preemption_disabled+0x48/0x280
[  453.859985]  ? __lock_is_held+0xb5/0x140
[  453.864061]  __alloc_pages_nodemask+0xa80/0xde0
[  453.868729]  ? zap_class+0x640/0x640
[  453.872495]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  453.877525]  ? find_held_lock+0x36/0x1c0
[  453.881596]  ? ____cache_alloc_node+0x1c7/0x1e0
[  453.886270]  ? lock_downgrade+0x900/0x900
[  453.890428]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.895971]  cache_grow_begin+0xa5/0x8c0
[  453.900069]  ? do_raw_spin_unlock+0xa7/0x330
[  453.904502]  fallback_alloc+0x204/0x2e0
[  453.908487]  ____cache_alloc_node+0x1c7/0x1e0
[  453.913022]  kmem_cache_alloc_node+0xe3/0x730
[  453.917539]  ? ipv6_get_ifaddr+0x42e/0x620
[  453.921786]  __alloc_skb+0x119/0x770
[  453.925502]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  453.930786]  ? netdev_alloc_frag+0x1f0/0x1f0
[  453.935198]  ? lock_downgrade+0x900/0x900
[  453.939387]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.944927]  ? refcount_sub_and_test_checked+0x203/0x310
[  453.950387]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  453.955848]  ? addrconf_rs_timer+0x690/0x690
[  453.960267]  ndisc_alloc_skb+0x144/0x340
[  453.964350]  ndisc_send_rs+0x331/0x6e0
[  453.968252]  addrconf_rs_timer+0x314/0x690
[  453.972513]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  453.976777]  call_timer_fn+0x272/0x920
[  453.980661]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  453.984891]  ? process_timeout+0x40/0x40
[  453.988971]  ? __run_timers+0x7da/0xc70
[  453.992949]  ? _raw_spin_unlock_irq+0x27/0x80
[  453.997444]  ? _raw_spin_unlock_irq+0x27/0x80
[  454.001949]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  454.006207]  ? lockdep_hardirqs_on+0x296/0x5b0
[  454.010790]  ? trace_hardirqs_on+0xbd/0x310
[  454.015116]  ? kasan_check_read+0x11/0x20
[  454.019266]  ? __run_timers+0x7da/0xc70
[  454.023262]  ? trace_hardirqs_off_caller+0x310/0x310
[  454.028372]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  454.032617]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  454.036850]  __run_timers+0x7e5/0xc70
[  454.040660]  ? timer_fixup_init+0x70/0x70
[  454.044816]  ? _raw_spin_unlock_irq+0x27/0x80
[  454.049327]  ? _raw_spin_unlock_irq+0x27/0x80
[  454.053829]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  454.058409]  ? trace_hardirqs_on+0xbd/0x310
[  454.062726]  ? kasan_check_read+0x11/0x20
[  454.066871]  ? finish_task_switch+0x1f4/0x910
[  454.071384]  ? trace_hardirqs_off_caller+0x310/0x310
[  454.076494]  ? compat_start_thread+0x80/0x80
[  454.080945]  ? pvclock_read_flags+0x160/0x160
[  454.085437]  ? __switch_to_asm+0x34/0x70
[  454.089542]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.095082]  ? check_preemption_disabled+0x48/0x280
[  454.100121]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  454.105674]  ? rcu_pm_notify+0xc0/0xc0
[  454.109560]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.115113]  ? check_preemption_disabled+0x48/0x280
[  454.120135]  run_timer_softirq+0x52/0xb0
[  454.124195]  ? rcu_read_lock_sched_held+0x14f/0x180
[  454.129223]  __do_softirq+0x308/0xb7e
[  454.133031]  ? retint_kernel+0x2d/0x2d
[  454.136920]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  454.142032]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  454.147481]  ? trace_hardirqs_on+0x310/0x310
[  454.151892]  ? schedule+0x108/0x460
[  454.155522]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  454.160297]  ? trace_hardirqs_off+0xb8/0x310
[  454.164741]  ? smpboot_thread_fn+0x68b/0xa00
[  454.169148]  ? trace_hardirqs_on+0x310/0x310
[  454.173557]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  454.179097]  ? check_preemption_disabled+0x48/0x280
[  454.184114]  ? takeover_tasklets+0xa90/0xa90
[  454.188545]  run_ksoftirqd+0x5e/0x100
[  454.192346]  smpboot_thread_fn+0x68b/0xa00
[  454.196579]  ? sort_range+0x30/0x30
[  454.200202]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  454.205331]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  454.210895]  ? __kthread_parkme+0xfb/0x1a0
[  454.215132]  ? sort_range+0x30/0x30
[  454.218756]  kthread+0x35a/0x440
[  454.222121]  ? kthread_stop+0x900/0x900
[  454.226144]  ret_from_fork+0x3a/0x50
[  454.229875] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  454.229954] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  454.236807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  454.236816] Call Trace:
[  454.243422] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  454.252647]  <IRQ>
[  454.255218] ksoftirqd/0 cpuset=/ mems_allowed=0
[  454.265542]  dump_stack+0x244/0x39d
[  454.275942]  ? dump_stack_print_info.cold.1+0x20/0x20
[  454.281147]  warn_alloc.cold.116+0xb7/0x1bd
[  454.285474]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  454.290319]  ? lock_downgrade+0x900/0x900
[  454.294477]  ? trace_hardirqs_off+0xb8/0x310
[  454.298905]  ? trace_hardirqs_off+0xb8/0x310
[  454.303320]  __alloc_pages_slowpath+0x26e8/0x2e10
[  454.308208]  ? warn_alloc+0x120/0x120
[  454.312023]  ? print_usage_bug+0xc0/0xc0
[  454.316086]  ? warn_alloc+0x120/0x120
[  454.319894]  ? warn_alloc+0x120/0x120
[  454.323716]  ? print_usage_bug+0xc0/0xc0
[  454.327790]  ? kvm_clock_read+0x18/0x30
[  454.331768]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  454.336794]  ? print_usage_bug+0xc0/0xc0
[  454.340858]  ? __lock_acquire+0x62f/0x4c20
[  454.345098]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  454.350693]  ? should_fail+0x22d/0xd01
[  454.354599]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  454.359878]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  454.364996]  ? __lock_acquire+0x62f/0x4c20
[  454.369256]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  454.374357]  ? __lock_acquire+0x62f/0x4c20
[  454.378593]  ? should_fail+0x22d/0xd01
[  454.382478]  ? rcu_irq_exit+0x1a2/0x390
[  454.386465]  ? mark_held_locks+0x130/0x130
[  454.390716]  ? mark_held_locks+0x130/0x130
[  454.394961]  ? mark_held_locks+0xc7/0x130
[  454.399116]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  454.404133]  ? zap_class+0x640/0x640
[  454.407847]  ? print_usage_bug+0xc0/0xc0
[  454.411943]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.417483]  ? check_preemption_disabled+0x48/0x280
[  454.422514]  ? __lock_is_held+0xb5/0x140
[  454.426581]  __alloc_pages_nodemask+0xa80/0xde0
[  454.431256]  ? zap_class+0x640/0x640
[  454.434978]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  454.440065]  ? find_held_lock+0x36/0x1c0
[  454.444141]  ? ____cache_alloc_node+0x1c7/0x1e0
[  454.448811]  ? lock_downgrade+0x900/0x900
[  454.452964]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.458521]  cache_grow_begin+0xa5/0x8c0
[  454.462582]  ? do_raw_spin_unlock+0xa7/0x330
[  454.466996]  fallback_alloc+0x204/0x2e0
[  454.470990]  ____cache_alloc_node+0x1c7/0x1e0
[  454.475520]  kmem_cache_alloc_node+0xe3/0x730
[  454.480027]  ? ipv6_get_ifaddr+0x42e/0x620
[  454.484276]  __alloc_skb+0x119/0x770
[  454.487989]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  454.493289]  ? netdev_alloc_frag+0x1f0/0x1f0
[  454.497727]  ? lock_downgrade+0x900/0x900
[  454.501904]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.507441]  ? refcount_sub_and_test_checked+0x203/0x310
[  454.512899]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  454.518353]  ? addrconf_rs_timer+0x690/0x690
[  454.522777]  ndisc_alloc_skb+0x144/0x340
[  454.526851]  ndisc_send_rs+0x331/0x6e0
[  454.530745]  addrconf_rs_timer+0x314/0x690
[  454.534987]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  454.539240]  call_timer_fn+0x272/0x920
[  454.543128]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  454.547378]  ? process_timeout+0x40/0x40
[  454.551453]  ? mark_held_locks+0xc7/0x130
[  454.555606]  ? _raw_spin_unlock_irq+0x27/0x80
[  454.560114]  ? _raw_spin_unlock_irq+0x27/0x80
[  454.564612]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  454.568846]  ? lockdep_hardirqs_on+0x296/0x5b0
[  454.573431]  ? trace_hardirqs_on+0xbd/0x310
[  454.577756]  ? kasan_check_read+0x11/0x20
[  454.581905]  ? __run_timers+0x7da/0xc70
[  454.585900]  ? trace_hardirqs_off_caller+0x310/0x310
[  454.591032]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  454.595290]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  454.599524]  __run_timers+0x7e5/0xc70
[  454.603339]  ? timer_fixup_init+0x70/0x70
[  454.607491]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  454.612522]  ? zap_class+0x640/0x640
[  454.616249]  ? print_usage_bug+0xc0/0xc0
[  454.620326]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  454.625539]  ? find_held_lock+0x36/0x1c0
[  454.629606]  ? zap_class+0x640/0x640
[  454.633352]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.638905]  ? check_preemption_disabled+0x48/0x280
[  454.643929]  ? __lock_is_held+0xb5/0x140
[  454.647994]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.653570]  ? check_preemption_disabled+0x48/0x280
[  454.658596]  run_timer_softirq+0x52/0xb0
[  454.662672]  ? rcu_read_lock_sched_held+0x14f/0x180
[  454.667689]  __do_softirq+0x308/0xb7e
[  454.671495]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  454.675994]  ? lock_downgrade+0x900/0x900
[  454.680155]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  454.685272]  ? pvclock_read_flags+0x160/0x160
[  454.689770]  ? lapic_next_event+0x5a/0x90
[  454.693925]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.699471]  ? kvm_clock_read+0x18/0x30
[  454.703458]  ? kvm_sched_clock_read+0x9/0x20
[  454.707885]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  454.713441]  ? check_preemption_disabled+0x48/0x280
[  454.718497]  irq_exit+0x17f/0x1c0
[  454.721952]  smp_apic_timer_interrupt+0x1cb/0x760
[  454.726801]  ? smp_call_function_single_interrupt+0x159/0x650
[  454.732705]  ? smp_call_function_single_interrupt+0x650/0x650
[  454.738597]  ? interrupt_entry+0xb5/0xc0
[  454.742675]  ? trace_hardirqs_off_caller+0xbb/0x310
[  454.747692]  ? trace_hardirqs_off_caller+0xbb/0x310
[  454.752711]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  454.757559]  ? trace_hardirqs_on_caller+0x310/0x310
[  454.762577]  ? trace_hardirqs_on_caller+0x310/0x310
[  454.767594]  ? task_prio+0x50/0x50
[  454.771140]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.776717]  ? check_preemption_disabled+0x48/0x280
[  454.781740]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  454.786593]  apic_timer_interrupt+0xf/0x20
[  454.790826]  </IRQ>
[  454.793063] RIP: 0010:dump_stack+0x358/0x39d
[  454.797472] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  454.816817] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  454.824527] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  454.831800] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  454.839077] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  454.846350] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  454.853619] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  454.860920]  ? dump_stack+0x34f/0x39d
[  454.864747]  ? dump_stack_print_info.cold.1+0x20/0x20
[  454.869939]  ? mark_held_locks+0x130/0x130
[  454.874186]  ? mark_held_locks+0x130/0x130
[  454.878433]  dump_header+0x27b/0xf72
[  454.882150]  ? pagefault_out_of_memory+0x197/0x197
[  454.887086]  ? __lock_acquire+0x62f/0x4c20
[  454.891335]  ? percpu_ref_get_many+0x240/0x240
[  454.895945]  ? print_usage_bug+0xc0/0xc0
[  454.900032]  ? zap_class+0x640/0x640
[  454.903744]  ? print_usage_bug+0xc0/0xc0
[  454.907803]  ? print_usage_bug+0xc0/0xc0
[  454.911892]  ? zap_class+0x640/0x640
[  454.915630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.921193]  ? find_held_lock+0x36/0x1c0
[  454.925257]  ? mark_held_locks+0xc7/0x130
[  454.929401]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  454.934528]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  454.939643]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  454.944226]  ? trace_hardirqs_on+0xbd/0x310
[  454.948544]  ? kasan_check_read+0x11/0x20
[  454.952704]  ? ___ratelimit+0x3b4/0x672
[  454.956681]  ? trace_hardirqs_off_caller+0x310/0x310
[  454.961802]  ? trace_hardirqs_on+0x310/0x310
[  454.966231]  ? lock_downgrade+0x900/0x900
[  454.970401]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  454.975506]  ? ___ratelimit+0x3b9/0x672
[  454.979494]  ? idr_get_free+0xf70/0xf70
[  454.983471]  ? find_held_lock+0x36/0x1c0
[  454.987539]  oom_kill_process.cold.27+0x10/0x903
[  454.992298]  ? zap_class+0x640/0x640
[  454.996021]  ? check_preemption_disabled+0x48/0x280
[  455.001048]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  455.005979]  ? kasan_check_read+0x11/0x20
[  455.010151]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.015446]  ? oom_evaluate_task+0x540/0x540
[  455.019861]  ? find_held_lock+0x36/0x1c0
[  455.023963]  ? out_of_memory+0x974/0x1430
[  455.028112]  ? lock_downgrade+0x900/0x900
[  455.032261]  ? check_preemption_disabled+0x48/0x280
[  455.037278]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  455.042226]  ? kasan_check_read+0x11/0x20
[  455.046370]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.051664]  ? rcu_softirq_qs+0x20/0x20
[  455.055660]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.061199]  ? oom_evaluate_task+0x302/0x540
[  455.065613]  out_of_memory+0xa84/0x1430
[  455.069599]  ? oom_killer_disable+0x3a0/0x3a0
[  455.074101]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  455.079040]  ? __ww_mutex_check_waiters+0x160/0x160
[  455.084078]  __alloc_pages_slowpath+0x2354/0x2e10
[  455.088950]  ? warn_alloc+0x120/0x120
[  455.092755]  ? mark_held_locks+0x130/0x130
[  455.097001]  ? find_get_entry+0xaae/0x1120
[  455.101259]  ? filemap_map_pages+0x1a20/0x1a20
[  455.105847]  ? zap_class+0x640/0x640
[  455.109567]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.115114]  ? check_preemption_disabled+0x48/0x280
[  455.120139]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.125678]  ? should_fail+0x22d/0xd01
[  455.129570]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  455.134689]  ? zap_class+0x640/0x640
[  455.138429]  ? __lock_is_held+0xb5/0x140
[  455.142500]  ? mark_held_locks+0x130/0x130
[  455.146739]  ? lock_release+0xa00/0xa00
[  455.150718]  ? perf_trace_sched_process_exec+0x860/0x860
[  455.156168]  ? xa_load+0x2ba/0x460
[  455.159736]  ? lock_downgrade+0x900/0x900
[  455.163886]  ? __might_sleep+0x95/0x190
[  455.168235]  __alloc_pages_nodemask+0xa80/0xde0
[  455.172910]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  455.177944]  ? __page_cache_alloc+0x191/0x5c0
[  455.182452]  ? xa_load+0x2e1/0x460
[  455.186000]  ? xa_clear_mark+0x40/0x40
[  455.189914]  ? zap_class+0x640/0x640
[  455.193650]  ? zap_class+0x640/0x640
[  455.197363]  ? zap_class+0x640/0x640
[  455.201090]  ? __do_page_cache_readahead+0x663/0x810
[  455.206205]  ? find_held_lock+0x36/0x1c0
[  455.210273]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  455.215836]  alloc_pages_current+0x173/0x350
[  455.220252]  __page_cache_alloc+0x38c/0x5c0
[  455.224575]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  455.229506]  ? kasan_check_read+0x11/0x20
[  455.233657]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.238941]  ? generic_perform_write+0x6a0/0x6a0
[  455.243714]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.249253]  ? check_preemption_disabled+0x48/0x280
[  455.254281]  filemap_fault+0x1595/0x25f0
[  455.258355]  ? __lock_page_or_retry+0xa00/0xa00
[  455.263042]  ? mark_held_locks+0x130/0x130
[  455.267665]  ? filemap_map_pages+0xd6b/0x1a20
[  455.272183]  ? lock_downgrade+0x900/0x900
[  455.276335]  ? check_preemption_disabled+0x48/0x280
[  455.281355]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  455.286284]  ? kasan_check_read+0x11/0x20
[  455.290433]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.295726]  ? rcu_softirq_qs+0x20/0x20
[  455.299712]  ? filemap_map_pages+0xd92/0x1a20
[  455.304224]  ? find_get_entries_tag+0x1400/0x1400
[  455.309074]  ? debug_object_destroy+0x2b0/0x2b0
[  455.313749]  ? lock_pi_update_atomic+0x150/0x150
[  455.318540]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.324090]  ? lock_acquire+0x1ed/0x520
[  455.328078]  ? ext4_filemap_fault+0x7a/0xad
[  455.332422]  ? lock_release+0xa00/0xa00
[  455.336399]  ? perf_trace_sched_process_exec+0x860/0x860
[  455.341851]  ? print_usage_bug+0xc0/0xc0
[  455.345918]  ? print_usage_bug+0xc0/0xc0
[  455.349994]  ? down_read+0x8d/0x120
[  455.353626]  ? ext4_filemap_fault+0x7a/0xad
[  455.357979]  ? __down_interruptible+0x700/0x700
[  455.362687]  ext4_filemap_fault+0x82/0xad
[  455.366836]  __do_fault+0x100/0x6b0
[  455.370472]  ? pmd_devmap_trans_unstable+0x220/0x220
[  455.375581]  ? mark_held_locks+0x130/0x130
[  455.379834]  ? mark_held_locks+0x130/0x130
[  455.384069]  ? debug_smp_processor_id+0x1c/0x20
[  455.388738]  ? perf_trace_lock+0x14d/0x7a0
[  455.392997]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.398549]  __handle_mm_fault+0x3ea0/0x5be0
[  455.402974]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  455.407835]  ? lock_is_held_type+0x210/0x210
[  455.412252]  ? ksys_dup3+0x680/0x680
[  455.415980]  ? zap_class+0x640/0x640
[  455.419699]  ? zap_class+0x640/0x640
[  455.423413]  ? __x64_sys_futex+0x53e/0x6a0
[  455.427653]  ? find_held_lock+0x36/0x1c0
[  455.431753]  ? handle_mm_fault+0x42a/0xc70
[  455.436007]  ? lock_downgrade+0x900/0x900
[  455.440180]  ? check_preemption_disabled+0x48/0x280
[  455.445198]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  455.450159]  ? kasan_check_read+0x11/0x20
[  455.454308]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.459588]  ? rcu_softirq_qs+0x20/0x20
[  455.463577]  ? trace_hardirqs_off_caller+0x310/0x310
[  455.468700]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.474283]  ? check_preemption_disabled+0x48/0x280
[  455.479307]  handle_mm_fault+0x54f/0xc70
[  455.483374]  ? __handle_mm_fault+0x5be0/0x5be0
[  455.487966]  ? find_vma+0x34/0x190
[  455.491543]  __do_page_fault+0x5e8/0xe60
[  455.495602]  ? trace_hardirqs_off+0xb8/0x310
[  455.500032]  do_page_fault+0xf2/0x7e0
[  455.503834]  ? vmalloc_sync_all+0x30/0x30
[  455.507985]  ? error_entry+0x70/0xd0
[  455.511707]  ? trace_hardirqs_off_caller+0xbb/0x310
[  455.516741]  ? trace_hardirqs_on_caller+0xc0/0x310
[  455.521729]  ? syscall_return_slowpath+0x5e0/0x5e0
[  455.526658]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  455.531501]  ? trace_hardirqs_on_caller+0x310/0x310
[  455.536519]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  455.541973]  ? prepare_exit_to_usermode+0x291/0x3b0
[  455.546987]  ? page_fault+0x8/0x30
[  455.550534]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  455.555379]  ? page_fault+0x8/0x30
[  455.558933]  page_fault+0x1e/0x30
[  455.562385] RIP: 0033:0x40f9c0
[  455.565592] Code: Bad RIP value.
[  455.568959] RSP: 002b:000000c420023ef8 EFLAGS: 00010216
[  455.574315] RAX: ffffffffffffff92 RBX: 000000003b9317b9 RCX: 000000000045ddf3
[  455.581574] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014ecf00
[  455.588838] RBP: 000000c420023f20 R08: 0000000000000000 R09: 0000000000000000
[  455.596104] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  455.603367] R13: 000000c423456ae0 R14: 0000000000000001 R15: 0000000000000000
[  455.610654] warn_alloc_show_mem: 1 callbacks suppressed
[  455.610666] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0-rc1+ #82
[  455.610667] Mem-Info:
[  455.610699] active_anon:54833 inactive_anon:712 isolated_anon:0
[  455.610699]  active_file:11 inactive_file:12 isolated_file:0
[  455.610699]  unevictable:0 dirty:0 writeback:0 unstable:0
[  455.610699]  slab_reclaimable:9333 slab_unreclaimable:1450451
[  455.610699]  mapped:24604 shmem:759 pagetables:501 bounce:0
[  455.610699]  free:13768 free_pcp:742 free_cma:0
[  455.616057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  455.622841] Node 0 active_anon:219332kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98416kB dirty:0kB writeback:0kB shmem:3036kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 204800kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  455.625234] Call Trace:
[  455.658097] 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
[  455.667706]  dump_stack+0x244/0x39d
[  455.695259] lowmem_reserve[]: 0 2818 6321 6321
[  455.697857]  ? dump_stack_print_info.cold.1+0x20/0x20
[  455.723939] Node 0 DMA32 free:25172kB min:30052kB low:37564kB high:45076kB active_anon:4096kB 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:496kB local_pcp:248kB free_cma:0kB
[  455.727583]  warn_alloc.cold.116+0xb7/0x1bd
[  455.732134] lowmem_reserve[]: 0 0 3503 3503
[  455.737320]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  455.765110] Node 0 Normal free:13992kB min:37364kB low:46704kB high:56044kB active_anon:215236kB inactive_anon:2848kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6656kB pagetables:2004kB bounce:0kB free_pcp:2472kB local_pcp:1416kB free_cma:0kB
[  455.769458]  ? lock_downgrade+0x900/0x900
[  455.773732] lowmem_reserve[]: 0 0 0 0
[  455.778571]  ? trace_hardirqs_off+0xb8/0x310
[  455.807706] 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
[  455.811853]  ? trace_hardirqs_off+0xb8/0x310
[  455.815663] Node 0 DMA32: 5*4kB (UM) 2*8kB (MH) 3*16kB (UMH) 4*32kB (MH) 4*64kB (MH) 3*128kB (MH) 3*256kB (UM) 4*512kB (UMH) 3*1024kB (M) 3*2048kB (UM) 3*4096kB (M) = 25172kB
[  455.820072]  __alloc_pages_slowpath+0x26e8/0x2e10
[  455.833565] Node 0 Normal: 928*4kB (ME) 511*8kB (UME) 175*16kB (UME) 57*32kB (UMEH) 7*64kB (UMH) 1*128kB (M) 2*256kB (UH) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 14024kB
[  455.837983]  ? warn_alloc+0x120/0x120
[  455.853636] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  455.858483]  ? warn_alloc+0x120/0x120
[  455.873813] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  455.877598]  ? warn_alloc+0x120/0x120
[  455.886405] 782 total pagecache pages
[  455.890198]  ? print_usage_bug+0xc0/0xc0
[  455.898753] 0 pages in swap cache
[  455.902543]  ? __alloc_pages_slowpath+0x26e8/0x2e10
[  455.906320] Swap cache stats: add 0, delete 0, find 0/0
[  455.910371]  ? print_usage_bug+0xc0/0xc0
[  455.913816] Free swap  = 0kB
[  455.918824]  ? print_usage_bug+0xc0/0xc0
[  455.924165] Total swap = 0kB
[  455.928221]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.931224] 1965979 pages RAM
[  455.935278]  ? should_fail+0x22d/0xd01
[  455.938273] 0 pages HighMem/MovableOnly
[  455.943807]  ? mark_held_locks+0x130/0x130
[  455.946889] 342853 pages reserved
[  455.950767]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  455.954720] 0 pages cma reserved
[  455.958948]  ? __lock_acquire+0x62f/0x4c20
[  455.962433] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  455.967468]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  455.970897] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  455.975084]  ? __lock_acquire+0x62f/0x4c20
[  455.981562] syz-fuzzer cpuset=/ mems_allowed=0
[  455.986657]  ? should_fail+0x22d/0xd01
[  456.009528]  ? print_usage_bug+0xc0/0xc0
[  456.013613]  ? mark_held_locks+0x130/0x130
[  456.017850]  ? mark_held_locks+0x130/0x130
[  456.022101]  ? zap_class+0x640/0x640
[  456.025813]  ? ret_from_fork+0x3a/0x50
[  456.029695]  ? zap_class+0x640/0x640
[  456.033427]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.038965]  ? check_preemption_disabled+0x48/0x280
[  456.043991]  ? __lock_is_held+0xb5/0x140
[  456.048120]  __alloc_pages_nodemask+0xa80/0xde0
[  456.052786]  ? zap_class+0x640/0x640
[  456.056501]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  456.061522]  ? find_held_lock+0x36/0x1c0
[  456.065597]  ? ____cache_alloc_node+0x1c7/0x1e0
[  456.070277]  ? lock_downgrade+0x900/0x900
[  456.074437]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.079977]  cache_grow_begin+0xa5/0x8c0
[  456.084089]  ? do_raw_spin_unlock+0xa7/0x330
[  456.088503]  fallback_alloc+0x204/0x2e0
[  456.092491]  ____cache_alloc_node+0x1c7/0x1e0
[  456.097003]  kmem_cache_alloc_node+0xe3/0x730
[  456.101531]  ? mark_held_locks+0xc7/0x130
[  456.105682]  __alloc_skb+0x119/0x770
[  456.109398]  ? netdev_alloc_frag+0x1f0/0x1f0
[  456.113803]  ? do_raw_spin_trylock+0x270/0x270
[  456.118382]  ? kmem_cache_alloc_trace+0x353/0x750
[  456.123243]  ? queue_work_on+0x12c/0x1e0
[  456.127313]  ? switchdev_port_obj_del+0xdc/0x440
[  456.132081]  ? switchdev_trans_item_enqueue+0x260/0x260
[  456.137439]  ? mod_timer+0x631/0x1560
[  456.141234]  ? wake_up_klogd+0x180/0x180
[  456.145297]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  456.150341]  __br_mdb_notify+0x4ff/0x15d0
[  456.154529]  ? __br_mdb_add+0x7f0/0x7f0
[  456.158514]  ? trace_hardirqs_off_caller+0x310/0x310
[  456.163702]  ? zap_class+0x640/0x640
[  456.167427]  ? br_multicast_group_expired+0x96/0x610
[  456.172553]  br_mdb_notify+0x310/0x410
[  456.176463]  ? br_mdb_dump+0x27b0/0x27b0
[  456.180556]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.186103]  br_multicast_group_expired+0x1bc/0x610
[  456.191124]  ? br_mdb_free+0x80/0x80
[  456.194855]  call_timer_fn+0x272/0x920
[  456.198748]  ? br_mdb_free+0x80/0x80
[  456.202477]  ? process_timeout+0x40/0x40
[  456.206561]  ? __run_timers+0x7da/0xc70
[  456.210536]  ? _raw_spin_unlock_irq+0x27/0x80
[  456.215059]  ? _raw_spin_unlock_irq+0x27/0x80
[  456.219594]  ? br_mdb_free+0x80/0x80
[  456.223359]  ? lockdep_hardirqs_on+0x296/0x5b0
[  456.227940]  ? trace_hardirqs_on+0xbd/0x310
[  456.232258]  ? kasan_check_read+0x11/0x20
[  456.236420]  ? __run_timers+0x7da/0xc70
[  456.240418]  ? trace_hardirqs_off_caller+0x310/0x310
[  456.245542]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  456.249777]  ? br_mdb_free+0x80/0x80
[  456.253513]  __run_timers+0x7e5/0xc70
[  456.257333]  ? timer_fixup_init+0x70/0x70
[  456.261497]  ? _raw_spin_unlock_irq+0x27/0x80
[  456.265992]  ? _raw_spin_unlock_irq+0x27/0x80
[  456.270491]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  456.275080]  ? trace_hardirqs_on+0xbd/0x310
[  456.279411]  ? kasan_check_read+0x11/0x20
[  456.283561]  ? finish_task_switch+0x1f4/0x910
[  456.288088]  ? trace_hardirqs_off_caller+0x310/0x310
[  456.293192]  ? compat_start_thread+0x80/0x80
[  456.297629]  ? pvclock_read_flags+0x160/0x160
[  456.302135]  ? __switch_to_asm+0x34/0x70
[  456.306196]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.311732]  ? check_preemption_disabled+0x48/0x280
[  456.316767]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  456.322318]  ? rcu_pm_notify+0xc0/0xc0
[  456.326226]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.331766]  ? check_preemption_disabled+0x48/0x280
[  456.336786]  run_timer_softirq+0x52/0xb0
[  456.340878]  ? rcu_read_lock_sched_held+0x14f/0x180
[  456.345887]  __do_softirq+0x308/0xb7e
[  456.349688]  ? retint_kernel+0x2d/0x2d
[  456.353576]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  456.358695]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  456.364145]  ? trace_hardirqs_on+0x310/0x310
[  456.368565]  ? schedule+0x108/0x460
[  456.372222]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  456.376991]  ? trace_hardirqs_off+0xb8/0x310
[  456.381405]  ? smpboot_thread_fn+0x68b/0xa00
[  456.385817]  ? trace_hardirqs_on+0x310/0x310
[  456.390227]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.395763]  ? check_preemption_disabled+0x48/0x280
[  456.400779]  ? takeover_tasklets+0xa90/0xa90
[  456.405191]  run_ksoftirqd+0x5e/0x100
[  456.408991]  smpboot_thread_fn+0x68b/0xa00
[  456.413236]  ? sort_range+0x30/0x30
[  456.416864]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  456.421971]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.427512]  ? __kthread_parkme+0xfb/0x1a0
[  456.431767]  ? sort_range+0x30/0x30
[  456.435398]  kthread+0x35a/0x440
[  456.438770]  ? kthread_stop+0x900/0x900
[  456.442764]  ret_from_fork+0x3a/0x50
[  456.446496] CPU: 1 PID: 6069 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  456.446658] ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  456.453443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  456.463746] ksoftirqd/0 cpuset=/ mems_allowed=0
[  456.473091] Call Trace:
[  456.480312]  <IRQ>
[  456.482472]  dump_stack+0x244/0x39d
[  456.486108]  ? dump_stack_print_info.cold.1+0x20/0x20
[  456.491314]  warn_alloc.cold.116+0xb7/0x1bd
[  456.495655]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  456.500499]  ? lock_downgrade+0x900/0x900
[  456.504660]  ? trace_hardirqs_off+0xb8/0x310
[  456.509074]  ? trace_hardirqs_off+0xb8/0x310
[  456.513490]  __alloc_pages_slowpath+0x26e8/0x2e10
[  456.518360]  ? warn_alloc+0x120/0x120
[  456.522167]  ? print_usage_bug+0xc0/0xc0
[  456.526233]  ? warn_alloc+0x120/0x120
[  456.530047]  ? warn_alloc+0x120/0x120
[  456.533856]  ? print_usage_bug+0xc0/0xc0
[  456.537920]  ? kvm_clock_read+0x18/0x30
[  456.541896]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  456.546911]  ? print_usage_bug+0xc0/0xc0
[  456.550973]  ? __lock_acquire+0x62f/0x4c20
[  456.555254]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.560809]  ? should_fail+0x22d/0xd01
[  456.564695]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  456.570150]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  456.575254]  ? __lock_acquire+0x62f/0x4c20
[  456.579494]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  456.584597]  ? __lock_acquire+0x62f/0x4c20
[  456.588825]  ? should_fail+0x22d/0xd01
[  456.592704]  ? rcu_irq_exit+0x1a2/0x390
[  456.596686]  ? mark_held_locks+0x130/0x130
[  456.600922]  ? mark_held_locks+0x130/0x130
[  456.605157]  ? mark_held_locks+0xc7/0x130
[  456.609332]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  456.614367]  ? zap_class+0x640/0x640
[  456.618084]  ? print_usage_bug+0xc0/0xc0
[  456.622151]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.627691]  ? check_preemption_disabled+0x48/0x280
[  456.632720]  ? __lock_is_held+0xb5/0x140
[  456.636794]  __alloc_pages_nodemask+0xa80/0xde0
[  456.641467]  ? zap_class+0x640/0x640
[  456.645202]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  456.650231]  ? find_held_lock+0x36/0x1c0
[  456.654307]  ? ____cache_alloc_node+0x1c7/0x1e0
[  456.658982]  ? lock_downgrade+0x900/0x900
[  456.663163]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.668722]  cache_grow_begin+0xa5/0x8c0
[  456.672782]  ? do_raw_spin_unlock+0xa7/0x330
[  456.677208]  fallback_alloc+0x204/0x2e0
[  456.681190]  ____cache_alloc_node+0x1c7/0x1e0
[  456.685698]  kmem_cache_alloc_node+0xe3/0x730
[  456.690193]  ? ipv6_get_ifaddr+0x42e/0x620
[  456.694436]  __alloc_skb+0x119/0x770
[  456.698146]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  456.703426]  ? netdev_alloc_frag+0x1f0/0x1f0
[  456.707833]  ? lock_downgrade+0x900/0x900
[  456.711984]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.717526]  ? refcount_sub_and_test_checked+0x203/0x310
[  456.722981]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  456.728440]  ? addrconf_rs_timer+0x690/0x690
[  456.732860]  ndisc_alloc_skb+0x144/0x340
[  456.736928]  ndisc_send_rs+0x331/0x6e0
[  456.740822]  addrconf_rs_timer+0x314/0x690
[  456.745061]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  456.749306]  call_timer_fn+0x272/0x920
[  456.753210]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  456.757443]  ? process_timeout+0x40/0x40
[  456.761514]  ? mark_held_locks+0xc7/0x130
[  456.765661]  ? _raw_spin_unlock_irq+0x27/0x80
[  456.770157]  ? _raw_spin_unlock_irq+0x27/0x80
[  456.774648]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  456.778883]  ? lockdep_hardirqs_on+0x296/0x5b0
[  456.783468]  ? trace_hardirqs_on+0xbd/0x310
[  456.787789]  ? kasan_check_read+0x11/0x20
[  456.791935]  ? __run_timers+0x7da/0xc70
[  456.795909]  ? trace_hardirqs_off_caller+0x310/0x310
[  456.801489]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  456.805727]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  456.810455]  __run_timers+0x7e5/0xc70
[  456.814268]  ? timer_fixup_init+0x70/0x70
[  456.818448]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  456.823462]  ? zap_class+0x640/0x640
[  456.827180]  ? print_usage_bug+0xc0/0xc0
[  456.831238]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  456.836432]  ? find_held_lock+0x36/0x1c0
[  456.840496]  ? zap_class+0x640/0x640
[  456.844259]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.849814]  ? check_preemption_disabled+0x48/0x280
[  456.854834]  ? __lock_is_held+0xb5/0x140
[  456.858905]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.864453]  ? check_preemption_disabled+0x48/0x280
[  456.869468]  run_timer_softirq+0x52/0xb0
[  456.873553]  ? rcu_read_lock_sched_held+0x14f/0x180
[  456.878582]  __do_softirq+0x308/0xb7e
[  456.882381]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  456.886874]  ? lock_downgrade+0x900/0x900
[  456.891030]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  456.896138]  ? pvclock_read_flags+0x160/0x160
[  456.900631]  ? lapic_next_event+0x5a/0x90
[  456.904778]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.910352]  ? kvm_clock_read+0x18/0x30
[  456.914340]  ? kvm_sched_clock_read+0x9/0x20
[  456.918751]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.924286]  ? check_preemption_disabled+0x48/0x280
[  456.929330]  irq_exit+0x17f/0x1c0
[  456.932799]  smp_apic_timer_interrupt+0x1cb/0x760
[  456.937639]  ? smp_call_function_single_interrupt+0x159/0x650
[  456.943539]  ? smp_call_function_single_interrupt+0x650/0x650
[  456.949423]  ? interrupt_entry+0xb5/0xc0
[  456.953488]  ? trace_hardirqs_off_caller+0xbb/0x310
[  456.958521]  ? trace_hardirqs_off_caller+0xbb/0x310
[  456.963542]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  456.968397]  ? trace_hardirqs_on_caller+0x310/0x310
[  456.973411]  ? trace_hardirqs_on_caller+0x310/0x310
[  456.978437]  ? task_prio+0x50/0x50
[  456.981980]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.987527]  ? check_preemption_disabled+0x48/0x280
[  456.992551]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  456.997404]  apic_timer_interrupt+0xf/0x20
[  457.001636]  </IRQ>
[  457.003891] RIP: 0010:dump_stack+0x358/0x39d
[  457.008319] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  457.027216] RSP: 0000:ffff8801c15ae1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  457.034922] RAX: ffff8801d1efa540 RBX: 1ffffffff12a3f76 RCX: 1ffff1003a3df5c6
[  457.042189] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  457.049455] RBP: ffff8801c15ae290 R08: ffff8801d1efae30 R09: 0000000000000006
[  457.056739] R10: 0000000000000000 R11: ffff8801d1efa540 R12: 1ffff100382b5c45
[  457.064009] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  457.071328]  ? dump_stack+0x34f/0x39d
[  457.075147]  ? dump_stack_print_info.cold.1+0x20/0x20
[  457.080343]  ? mark_held_locks+0x130/0x130
[  457.084580]  ? mark_held_locks+0x130/0x130
[  457.088823]  dump_header+0x27b/0xf72
[  457.092552]  ? pagefault_out_of_memory+0x197/0x197
[  457.097490]  ? __lock_acquire+0x62f/0x4c20
[  457.101727]  ? percpu_ref_get_many+0x240/0x240
[  457.106310]  ? print_usage_bug+0xc0/0xc0
[  457.110377]  ? zap_class+0x640/0x640
[  457.114096]  ? print_usage_bug+0xc0/0xc0