Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 INFO: task kworker/u4:7:8261 blocked for more than 140 seconds. Not tainted 5.0.0-rc5+ #75 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 kworker/u4:7 D25456 8261 2 0x80000000 Workqueue: netns cleanup_net Call Trace: __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 schedule+0x92/0x180 kernel/sched/core.c:3529 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3587 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x726/0x1310 kernel/locking/mutex.c:1072 slab_alloc_node mm/slab.c:3316 [inline] kmem_cache_alloc_node+0xe3/0x710 mm/slab.c:3631 __alloc_skb+0xd5/0x5e0 net/core/skbuff.c:196 alloc_skb include/linux/skbuff.h:1011 [inline] ndisc_alloc_skb+0x13c/0x340 net/ipv6/ndisc.c:403 ndisc_send_rs+0x32d/0x6d0 net/ipv6/ndisc.c:669 addrconf_rs_timer+0x30f/0x680 net/ipv6/addrconf.c:3841 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77 __do_softirq+0x266/0x95a kernel/softirq.c:292 netdev_run_todo+0x565/0x7d0 net/core/dev.c:8893 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore+0x4e/0x56 arch/x86/include/asm/paravirt.h:766 Code: 00 74 0c 48 c7 c7 f0 81 92 88 e8 63 7f aa fa 48 83 3d 8b 29 96 01 00 75 07 e8 b4 82 73 fa 0f 0b e8 ad 82 73 fa 48 89 df 57 9d <0f> 1f 44 00 00 5b 5d c3 e8 9b 82 73 fa 48 c7 c2 40 d7 0f 8b 4c 89 RSP: 0000:ffff888099fdf4a8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:117 RAX: ffff88808814e080 RBX: 0000000000000293 RCX: 1ffff11011029d2e ip_tunnel_delete_nets+0x423/0x5f0 net/ipv4/ip_tunnel.c:1080 RDX: 0000000000000000 RSI: ffffffff86fc5873 RDI: 0000000000000293 RBP: ffff888099fdf4b0 R08: ffff88808814e080 R09: ffff88808814e970 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000293 R13: 00000000ffffffff R14: 0000000000000200 R15: dffffc0000000000 dump_stack+0x1d9/0x1f0 lib/dump_stack.c:118 dump_header+0x10f/0xb6c mm/oom_kill.c:451 oom_kill_process.cold+0x10/0x6f5 mm/oom_kill.c:966 vti_exit_batch_net+0x23/0x30 net/ipv4/ip_vti.c:495 out_of_memory mm/oom_kill.c:1141 [inline] out_of_memory+0x79a/0x1280 mm/oom_kill.c:1074 ops_exit_list.isra.0+0x105/0x160 net/core/net_namespace.c:156 cleanup_net+0x3fb/0x960 net/core/net_namespace.c:551 __alloc_pages_may_oom mm/page_alloc.c:3672 [inline] __alloc_pages_slowpath+0x2113/0x2900 mm/page_alloc.c:4385 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 process_one_work+0x98e/0x1790 kernel/workqueue.c:2173 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc mm/filemap.c:924 [inline] __page_cache_alloc+0x2bd/0x460 mm/filemap.c:909 page_cache_read mm/filemap.c:2373 [inline] filemap_fault+0xff7/0x2400 mm/filemap.c:2557 ext4_filemap_fault+0x83/0xaf fs/ext4/inode.c:6318 worker_thread+0x98/0xe40 kernel/workqueue.c:2319 __do_fault+0x116/0x4e0 mm/memory.c:3019 do_read_fault mm/memory.c:3430 [inline] do_fault mm/memory.c:3556 [inline] handle_pte_fault mm/memory.c:3787 [inline] __handle_mm_fault+0x2cbd/0x3f20 mm/memory.c:3911 kthread+0x357/0x430 kernel/kthread.c:246 handle_mm_fault+0x43f/0xb30 mm/memory.c:3948 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline] __do_page_fault+0x5da/0xd60 arch/x86/mm/fault.c:1541 do_page_fault+0x71/0x581 arch/x86/mm/fault.c:1572 INFO: task syz-executor.4:24570 blocked for more than 140 seconds. page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 RIP: 0033:0x7f045a631000 Not tainted 5.0.0-rc5+ #75 Code: Bad RIP value. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. RSP: 002b:00007f04582d8cf8 EFLAGS: 00010206 syz-executor.4 D27744 24570 7593 0x00100004 RAX: 0000000001b14f00 RBX: 0000000001b15008 RCX: 0000000001b14ef0 RDX: 0000000001acce10 RSI: 0000000000000000 RDI: 00007f04582d8d00 Call Trace: RBP: 0000000001b15000 R08: 0000000001b14ef0 R09: 00007f045a6cd100 R10: 6465766965636572 R11: 0000000000000000 R12: 0000000000000000 context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 R13: 00007f0459b0e5a3 R14: 0000000000000ba7 R15: 00007f0459b0d613 warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: active_anon:46283 inactive_anon:191 isolated_anon:0 active_file:9 inactive_file:5 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:10961 slab_unreclaimable:1456448 mapped:43522 shmem:244 pagetables:646 bounce:0 free:13864 free_pcp:422 free_cma:0 Node 0 active_anon:185132kB inactive_anon:764kB active_file:32kB inactive_file:20kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174088kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 34816kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 1 active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 DMA free:10280kB min:220kB low:272kB high:324kB 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 lowmem_reserve[]: 0 2553 2555 2555 Node 0 DMA32 free:25216kB min:56712kB low:65768kB high:74824kB active_anon:185132kB inactive_anon:764kB active_file:32kB inactive_file:20kB unevictable:0kB writepending:0kB present:3129332kB managed:2617972kB mlocked:0kB kernel_stack:6880kB pagetables:2584kB bounce:0kB free_pcp:1196kB local_pcp:416kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 schedule+0x92/0x180 kernel/sched/core.c:3529 Node 0 Normal free:8kB min:28kB low:32kB high:36kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:2204kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 schedule_timeout+0x8ca/0xfd0 kernel/time/timer.c:1779 Node 1 Normal free:19952kB min:53624kB low:67028kB high:80432kB active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:492kB local_pcp:244kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 0*4kB 1*8kB (U) 0*16kB 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10280kB Node 0 DMA32: 1586*4kB (UME) 877*8kB (UME) 265*16kB (ME) 50*32kB (M) 0*64kB 1*128kB (U) 1*256kB (U) 1*512kB (U) 1*1024kB (U) 0*2048kB 1*4096kB (U) = 25216kB Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB Node 1 Normal: 4*4kB (ME) 2*8kB (E) 1*16kB (E) 42*32kB (UM) 14*64kB (UME) 2*128kB (ME) 2*256kB (ME) 3*512kB (ME) 3*1024kB (ME) 0*2048kB 3*4096kB (UM) = 19952kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 258 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 339412 pages reserved 0 pages cma reserved ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) do_wait_for_common kernel/sched/completion.c:83 [inline] __wait_for_common kernel/sched/completion.c:104 [inline] wait_for_common kernel/sched/completion.c:115 [inline] wait_for_completion+0x29c/0x440 kernel/sched/completion.c:136 bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) __wait_rcu_gp+0x22a/0x2f0 kernel/rcu/update.c:360 bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) synchronize_rcu.part.0+0xcf/0xe0 kernel/rcu/tree_plugin.h:872 bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 906 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) synchronize_rcu+0x27/0xa0 kernel/rcu/tree_plugin.h:873 bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) br_vlan_flush+0xc3/0x180 net/bridge/br_vlan.c:715 bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) br_dev_uninit+0x2e/0x80 net/bridge/br_device.c:167 bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) rollback_registered_many+0xac2/0xfd0 net/core/dev.c:8116 bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) Mem-Info: active_anon:46271 inactive_anon:191 isolated_anon:0 active_file:9 inactive_file:5 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:10961 slab_unreclaimable:1457127 mapped:43522 shmem:244 pagetables:646 bounce:0 free:13242 free_pcp:359 free_cma:0 rollback_registered+0x109/0x1d0 net/core/dev.c:8144 Node 0 active_anon:185084kB inactive_anon:764kB active_file:32kB inactive_file:20kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174088kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 34816kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 1 active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes unregister_netdevice_queue net/core/dev.c:9191 [inline] unregister_netdevice_queue+0x1ee/0x2c0 net/core/dev.c:9184 Node 0 DMA free:10280kB min:220kB low:272kB high:324kB 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 br_dev_delete+0x145/0x1a0 net/bridge/br_if.c:387 lowmem_reserve[]: 0 2553 2555 2555 Node 0 DMA32 free:21972kB min:56712kB low:65768kB high:74824kB active_anon:185084kB inactive_anon:764kB active_file:32kB inactive_file:20kB unevictable:0kB writepending:0kB present:3129332kB managed:2617972kB mlocked:0kB kernel_stack:6848kB pagetables:2584kB bounce:0kB free_pcp:1080kB local_pcp:300kB free_cma:0kB br_del_bridge+0xd7/0x120 net/bridge/br_if.c:487 lowmem_reserve[]: 0 0 2 2 br_ioctl_deviceless_stub+0x2a4/0x7b0 net/bridge/br_ioctl.c:380 Node 0 Normal free:8kB min:28kB low:32kB high:36kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:2204kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB sock_ioctl+0x2f2/0x610 net/socket.c:1040 lowmem_reserve[]: 0 0 0 0 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696 Node 1 Normal free:20152kB min:53624kB low:67028kB high:80432kB active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: Bad RIP value. ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 RSP: 002b:00007f0924205c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.0.0-rc5+ #75 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e39 RDX: 0000000020000b00 RSI: 00000000000089a1 RDI: 000000000000000f RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f09242066d4 R13: 00000000004c3183 R14: 00000000004d5d30 R15: 00000000ffffffff __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 Showing all locks held in the system: 2 locks held by init/1: #0: 000000003be6663b (&mm->mmap_sem){++++}, at: do_user_addr_fault arch/x86/mm/fault.c:1416 [inline] #0: 000000003be6663b (&mm->mmap_sem){++++}, at: __do_page_fault+0x339/0xd60 arch/x86/mm/fault.c:1541 #1: 000000008b5110b4 (&ei->i_mmap_sem){++++}, at: ext4_filemap_fault+0x7b/0xaf fs/ext4/inode.c:6317 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 5 locks held by ksoftirqd/0/9: 3 locks held by kworker/1:0/17: __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 #0: 0000000088e5b6da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 0000000088e5b6da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 0000000088e5b6da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 0000000088e5b6da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 0000000088e5b6da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 0000000088e5b6da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 0000000088e5b6da ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: process_one_work+0x87e/0x1790 kernel/workqueue.c:2144 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 #1: 000000008bb67c6b ((addr_chk_work).work){+.+.}, at: process_one_work+0x8b4/0x1790 kernel/workqueue.c:2148 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 #2: 00000000976e6f72 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77 __do_cache_alloc mm/slab.c:3345 [inline] slab_alloc mm/slab.c:3373 [inline] kmem_cache_alloc+0x1f5/0x710 mm/slab.c:3541 skb_clone+0x150/0x3b0 net/core/skbuff.c:1285 1 lock held by khungtaskd/1039: deliver_clone+0x46/0xc0 net/bridge/br_forward.c:123 #0: 000000000a828fa3 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:4389 br_flood+0x5fa/0x710 net/bridge/br_forward.c:238 3 locks held by rsyslogd/7452: br_handle_frame_finish+0xf4e/0x14c0 net/bridge/br_input.c:169 2 locks held by cron/7493: #0: 000000003a6b6b6f (&mm->mmap_sem){++++}, at: do_user_addr_fault arch/x86/mm/fault.c:1416 [inline] #0: 000000003a6b6b6f (&mm->mmap_sem){++++}, at: __do_page_fault+0x339/0xd60 arch/x86/mm/fault.c:1541 #1: 000000008494ebcf (&ei->i_mmap_sem){++++}, at: ext4_filemap_fault+0x7b/0xaf fs/ext4/inode.c:6317 br_nf_hook_thresh+0x2ec/0x380 net/bridge/br_netfilter_hooks.c:1009 2 locks held by getty/7543: #0: 00000000caa11f46 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 br_nf_pre_routing_finish_ipv6+0x708/0xdc0 net/bridge/br_netfilter_ipv6.c:210 #1: 00000000480fc932 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 NF_HOOK include/linux/netfilter.h:289 [inline] br_nf_pre_routing_ipv6+0x3c4/0x740 net/bridge/br_netfilter_ipv6.c:238 2 locks held by getty/7544: #0: 00000000a389239f (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 br_nf_pre_routing+0xe80/0x13a0 net/bridge/br_netfilter_hooks.c:482 #1: 00000000d9b53863 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7545: #0: 00000000d8a88c0c (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 nf_hook_entry_hookfn include/linux/netfilter.h:119 [inline] nf_hook_slow+0xbf/0x1f0 net/netfilter/core.c:511 nf_hook include/linux/netfilter.h:244 [inline] NF_HOOK include/linux/netfilter.h:287 [inline] br_handle_frame+0x95b/0x1450 net/bridge/br_input.c:305 #1: 00000000da8bf348 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7546: __netif_receive_skb_core+0xa96/0x3010 net/core/dev.c:4902 #0: 0000000007e40ae8 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000ea40b492 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 __netif_receive_skb_one_core+0xa8/0x1a0 net/core/dev.c:4971 2 locks held by getty/7547: #0: 00000000309ff74c (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 #1: 0000000082d3ecf0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 process_backlog+0x206/0x750 net/core/dev.c:5923 2 locks held by getty/7548: #0: 000000004ab6c48e (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000a21d1180 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 napi_poll net/core/dev.c:6346 [inline] net_rx_action+0x4fa/0x1070 net/core/dev.c:6412 2 locks held by getty/7549: #0: 00000000bfc5d4cb (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000094bc3c0a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 __do_softirq+0x266/0x95a kernel/softirq.c:292 2 locks held by syz-fuzzer/7564: run_ksoftirqd kernel/softirq.c:654 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 2 locks held by syz-fuzzer/7568: kthread+0x357/0x430 kernel/kthread.c:246 #0: 00000000f686f6e1 (&mm->mmap_sem){++++}, at: do_user_addr_fault arch/x86/mm/fault.c:1416 [inline] #0: 00000000f686f6e1 (&mm->mmap_sem){++++}, at: __do_page_fault+0x339/0xd60 arch/x86/mm/fault.c:1541 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Mem-Info: #1: 00000000972011c3 (&ei->i_mmap_sem){++++}, at: ext4_filemap_fault+0x7b/0xaf fs/ext4/inode.c:6317 active_anon:46271 inactive_anon:191 isolated_anon:0 active_file:7 inactive_file:7 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:10961 slab_unreclaimable:1457483 mapped:43522 shmem:244 pagetables:646 bounce:0 free:12862 free_pcp:395 free_cma:0 Node 0 active_anon:185084kB inactive_anon:764kB active_file:24kB inactive_file:28kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174088kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 34816kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes 2 locks held by syz-fuzzer/7569: Node 1 active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 DMA free:10280kB min:220kB low:272kB high:324kB 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 #0: 00000000f686f6e1 (&mm->mmap_sem){++++}, at: do_user_addr_fault arch/x86/mm/fault.c:1416 [inline] #0: 00000000f686f6e1 (&mm->mmap_sem){++++}, at: __do_page_fault+0x339/0xd60 arch/x86/mm/fault.c:1541 lowmem_reserve[]: 0 2553 2555 2555 Node 0 DMA32 free:21216kB min:56712kB low:65768kB high:74824kB active_anon:185084kB inactive_anon:764kB active_file:24kB inactive_file:28kB unevictable:0kB writepending:0kB present:3129332kB managed:2617972kB mlocked:0kB kernel_stack:6848kB pagetables:2584kB bounce:0kB free_pcp:1084kB local_pcp:304kB free_cma:0kB lowmem_reserve[]: 0 0 2 2 #1: 00000000972011c3 (&ei->i_mmap_sem){++++}, at: ext4_filemap_fault+0x7b/0xaf fs/ext4/inode.c:6317 Node 0 Normal free:8kB min:28kB low:32kB high:36kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:2204kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB 2 locks held by syz-fuzzer/7577: lowmem_reserve[]: 0 0 0 0 #0: 00000000f686f6e1 (&mm->mmap_sem){++++}, at: do_user_addr_fault arch/x86/mm/fault.c:1416 [inline] #0: 00000000f686f6e1 (&mm->mmap_sem){++++}, at: __do_page_fault+0x339/0xd60 arch/x86/mm/fault.c:1541 Node 1 Normal free:19944kB min:53624kB low:67028kB high:80432kB active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:496kB local_pcp:248kB free_cma:0kB #1: 00000000972011c3 (&ei->i_mmap_sem){++++}, at: ext4_filemap_fault+0x7b/0xaf fs/ext4/inode.c:6317 lowmem_reserve[]: 0 0 0 0 4 locks held by kworker/u4:7/8261: Node 0 DMA: 0*4kB 1*8kB (U) 0*16kB 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10280kB #0: 00000000f784ccfd ((wq_completion)"%s""netns"){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 00000000f784ccfd ((wq_completion)"%s""netns"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000f784ccfd ((wq_completion)"%s""netns"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: 00000000f784ccfd ((wq_completion)"%s""netns"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:59 [inline] #0: 00000000f784ccfd ((wq_completion)"%s""netns"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: 00000000f784ccfd ((wq_completion)"%s""netns"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: 00000000f784ccfd ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x87e/0x1790 kernel/workqueue.c:2144 Node 0 DMA32: 1586*4kB (UME) 875*8kB (UME) 266*16kB (UME) 50*32kB (M) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (U) 0*4096kB = 21248kB #1: 00000000cfe758f5 (net_cleanup_work){+.+.}, at: process_one_work+0x8b4/0x1790 kernel/workqueue.c:2148 Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB #2: 00000000579785d7 (pernet_ops_rwsem){++++}, at: cleanup_net+0xae/0x960 net/core/net_namespace.c:518 Node 1 Normal: 4*4kB (ME) 3*8kB (UE) 2*16kB (UE) 41*32kB (UM) 14*64kB (UME) 2*128kB (ME) 2*256kB (ME) 3*512kB (ME) 3*1024kB (ME) 0*2048kB 3*4096kB (UM) = 19944kB #3: 00000000976e6f72 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77 Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 2 locks held by syz-executor.4/24570: 258 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB #0: 00000000da7b745b (br_ioctl_mutex){+.+.}, at: sock_ioctl+0x2c9/0x610 net/socket.c:1038 Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 339412 pages reserved 0 pages cma reserved ksoftirqd/0: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 #1: 00000000976e6f72 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:77 CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.0.0-rc5+ #75 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 warn_alloc.cold+0x87/0x17f mm/page_alloc.c:3576 ============================================= NMI backtrace for cpu 1 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 __do_cache_alloc mm/slab.c:3345 [inline] slab_alloc mm/slab.c:3373 [inline] kmem_cache_alloc+0x1f5/0x710 mm/slab.c:3541 skb_clone+0x150/0x3b0 net/core/skbuff.c:1285 deliver_clone+0x46/0xc0 net/bridge/br_forward.c:123 maybe_deliver net/bridge/br_forward.c:184 [inline] maybe_deliver net/bridge/br_forward.c:172 [inline] br_flood+0x4da/0x710 net/bridge/br_forward.c:226 br_handle_frame_finish+0xf4e/0x14c0 net/bridge/br_input.c:169 br_nf_hook_thresh+0x2ec/0x380 net/bridge/br_netfilter_hooks.c:1009 br_nf_pre_routing_finish_ipv6+0x708/0xdc0 net/bridge/br_netfilter_ipv6.c:210 NF_HOOK include/linux/netfilter.h:289 [inline] br_nf_pre_routing_ipv6+0x3c4/0x740 net/bridge/br_netfilter_ipv6.c:238 br_nf_pre_routing+0xe80/0x13a0 net/bridge/br_netfilter_hooks.c:482 nf_hook_entry_hookfn include/linux/netfilter.h:119 [inline] nf_hook_slow+0xbf/0x1f0 net/netfilter/core.c:511 nf_hook include/linux/netfilter.h:244 [inline] NF_HOOK include/linux/netfilter.h:287 [inline] br_handle_frame+0x95b/0x1450 net/bridge/br_input.c:305 __netif_receive_skb_core+0xa96/0x3010 net/core/dev.c:4902 __netif_receive_skb_one_core+0xa8/0x1a0 net/core/dev.c:4971 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 process_backlog+0x206/0x750 net/core/dev.c:5923 napi_poll net/core/dev.c:6346 [inline] net_rx_action+0x4fa/0x1070 net/core/dev.c:6412 __do_softirq+0x266/0x95a kernel/softirq.c:292 run_ksoftirqd kernel/softirq.c:654 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Mem-Info: CPU: 1 PID: 1039 Comm: khungtaskd Not tainted 5.0.0-rc5+ #75 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 active_anon:46271 inactive_anon:191 isolated_anon:0 active_file:7 inactive_file:7 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:10961 slab_unreclaimable:1457483 mapped:43522 shmem:244 pagetables:646 bounce:0 free:12862 free_pcp:395 free_cma:0 Call Trace: Node 0 active_anon:185084kB inactive_anon:764kB active_file:24kB inactive_file:28kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:174088kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 34816kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 Node 1 active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101 Node 0 DMA free:10280kB min:220kB low:272kB high:324kB 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 lowmem_reserve[]: 0 2553 2555 2555 nmi_trigger_cpumask_backtrace+0x1be/0x236 lib/nmi_backtrace.c:62 Node 0 DMA32 free:21216kB min:56712kB low:65768kB high:74824kB active_anon:185084kB inactive_anon:764kB active_file:24kB inactive_file:28kB unevictable:0kB writepending:0kB present:3129332kB managed:2617972kB mlocked:0kB kernel_stack:6848kB pagetables:2584kB bounce:0kB free_pcp:1084kB local_pcp:304kB free_cma:0kB arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 lowmem_reserve[]: 0 0 2 2 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x9df/0xee0 kernel/hung_task.c:287 Node 0 Normal free:8kB min:28kB low:32kB high:36kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:2204kB mlocked:0kB kernel_stack:96kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB kthread+0x357/0x430 kernel/kthread.c:246 lowmem_reserve[]: 0 0 0 0 Node 1 Normal free:19944kB min:53624kB low:67028kB high:80432kB active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3932160kB managed:3870184kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:496kB local_pcp:248kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Node 0 DMA: 0*4kB 1*8kB (U) 0*16kB 1*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10280kB Sending NMI from CPU 1 to CPUs 0: Node 0 DMA32: 1586*4kB (UME) 875*8kB (UME) 266*16kB (UME) 50*32kB (M) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (U) 0*4096kB = 21248kB NMI backtrace for cpu 0 CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.0.0-rc5+ #75 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:io_serial_out+0x73/0x90 drivers/tty/serial/8250/8250_port.c:456 Code: 00 49 8d 7c 24 38 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 d3 e3 80 3c 02 00 75 19 41 03 5c 24 38 44 89 e8 89 da ee <5b> 41 5c 41 5d 5d c3 e8 d1 4e 33 fe eb c0 e8 2a 4f 33 fe eb e0 0f RSP: 0000:ffff8880a9886720 EFLAGS: 00000002 RAX: 000000000000005b RBX: 00000000000003f8 RCX: 0000000000000000 RDX: 00000000000003f8 RSI: ffffffff83738826 RDI: ffffffff8af63818 RBP: ffff8880a9886738 R08: ffff8880a9878240 R09: ffffed1015310ce2 R10: ffffed1015310ce1 R11: 0000000000000003 R12: ffffffff8af637e0 R13: 000000000000005b R14: ffffffff8af637e0 R15: 000000000000005b FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000045df89 CR3: 0000000097d14000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: serial_port_out include/linux/serial_core.h:278 [inline] serial8250_console_putchar+0x4e/0x60 drivers/tty/serial/8250/8250_port.c:3200 uart_console_write+0x57/0x120 drivers/tty/serial/serial_core.c:1917 serial8250_console_write+0x62b/0x9c0 drivers/tty/serial/8250/8250_port.c:3263 univ8250_console_write+0x5f/0x70 drivers/tty/serial/8250/8250_core.c:586 call_console_drivers kernel/printk/printk.c:1737 [inline] console_unlock+0xbc6/0x10a0 kernel/printk/printk.c:2408 vprintk_emit+0x280/0x6d0 kernel/printk/printk.c:1931 vprintk_default+0x28/0x30 kernel/printk/printk.c:1958 vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398 printk+0xba/0xed kernel/printk/printk.c:1991 show_free_areas.cold+0x2f1/0x93a mm/page_alloc.c:5190 show_mem+0x39/0x19b lib/show_mem.c:18 warn_alloc_show_mem mm/page_alloc.c:3553 [inline] warn_alloc.cold+0x11c/0x17f mm/page_alloc.c:3577 __alloc_pages_slowpath+0x227e/0x2900 mm/page_alloc.c:4447 __alloc_pages_nodemask+0x5ce/0x710 mm/page_alloc.c:4555 __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] kmem_getpages mm/slab.c:1398 [inline] cache_grow_begin+0x9c/0x8c0 mm/slab.c:2666 fallback_alloc+0x1fd/0x2d0 mm/slab.c:3208 ____cache_alloc_node+0x1be/0x1e0 mm/slab.c:3276 __do_cache_alloc mm/slab.c:3345 [inline] slab_alloc mm/slab.c:3373 [inline] kmem_cache_alloc+0x1f5/0x710 mm/slab.c:3541 skb_clone+0x150/0x3b0 net/core/skbuff.c:1285 deliver_clone+0x46/0xc0 net/bridge/br_forward.c:123 maybe_deliver net/bridge/br_forward.c:184 [inline] maybe_deliver net/bridge/br_forward.c:172 [inline] br_flood+0x4da/0x710 net/bridge/br_forward.c:226 br_handle_frame_finish+0xf4e/0x14c0 net/bridge/br_input.c:169 br_nf_hook_thresh+0x2ec/0x380 net/bridge/br_netfilter_hooks.c:1009 br_nf_pre_routing_finish_ipv6+0x708/0xdc0 net/bridge/br_netfilter_ipv6.c:210 NF_HOOK include/linux/netfilter.h:289 [inline] br_nf_pre_routing_ipv6+0x3c4/0x740 net/bridge/br_netfilter_ipv6.c:238 br_nf_pre_routing+0xe80/0x13a0 net/bridge/br_netfilter_hooks.c:482 nf_hook_entry_hookfn include/linux/netfilter.h:119 [inline] nf_hook_slow+0xbf/0x1f0 net/netfilter/core.c:511 nf_hook include/linux/netfilter.h:244 [inline] NF_HOOK include/linux/netfilter.h:287 [inline] br_handle_frame+0x95b/0x1450 net/bridge/br_input.c:305 __netif_receive_skb_core+0xa96/0x3010 net/core/dev.c:4902 __netif_receive_skb_one_core+0xa8/0x1a0 net/core/dev.c:4971 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 process_backlog+0x206/0x750 net/core/dev.c:5923 napi_poll net/core/dev.c:6346 [inline] net_rx_action+0x4fa/0x1070 net/core/dev.c:6412 __do_softirq+0x266/0x95a kernel/softirq.c:292 run_ksoftirqd kernel/softirq.c:654 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352