divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 2610 Comm: kworker/1:2 Not tainted 5.4.0-rc4+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events iterate_cleanup_work RIP: 0010:tabledist net/sched/sch_netem.c:333 [inline] RIP: 0010:netem_enqueue+0x1a63/0x33b0 net/sched/sch_netem.c:536 Code: 12 00 00 45 89 26 4c 8b 75 d0 4c 8b 7d b0 48 8b 5d b8 48 85 db 0f 85 25 01 00 00 e8 17 bf 70 fb 43 8d 4c 2d 00 44 89 e0 31 d2 f1 49 63 c5 4c 8b 6d c8 49 29 c5 49 01 d5 e9 be 01 00 00 e8 f4 RSP: 0018:ffff8880aeb090d0 EFLAGS: 00010246 RAX: 00000000a3098912 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000080000302 RDI: 0000000000000000 RBP: ffff8880aeb09178 R08: ffffffff83425523 R09: ffffffff86026117 R10: ffff8880a15fa040 R11: 0000000000000003 R12: 00000000a3098912 R13: 0000000080000000 R14: ffff88808c899000 R15: ffff88808c8992c0 FS: 0000000000000000(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004c75a8 CR3: 000000000886d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __dev_xmit_skb net/core/dev.c:3531 [inline] __dev_queue_xmit+0x1121/0x3010 net/core/dev.c:3842 dev_queue_xmit+0x17/0x20 net/core/dev.c:3906 br_dev_queue_push_xmit+0x551/0x640 net/bridge/br_forward.c:52 br_nf_dev_queue_xmit+0x312/0x1570 include/linux/skbuff.h:4135 NF_HOOK include/linux/netfilter.h:305 [inline] br_nf_post_routing+0xa5f/0xea0 net/bridge/br_netfilter_hooks.c:848 nf_hook_entry_hookfn include/linux/netfilter.h:135 [inline] nf_hook_slow+0xc8/0x210 net/netfilter/core.c:512 nf_hook+0x23a/0x310 include/linux/netfilter.h:260 NF_HOOK include/linux/netfilter.h:303 [inline] br_forward_finish+0x7a/0xc0 net/bridge/br_forward.c:65 br_nf_hook_thresh net/bridge/br_netfilter_hooks.c:1018 [inline] br_nf_forward_finish+0x8f4/0xc80 net/bridge/br_netfilter_hooks.c:564 NF_HOOK include/linux/netfilter.h:305 [inline] br_nf_forward_ip+0xed4/0x13f0 net/bridge/br_netfilter_hooks.c:634 nf_hook_entry_hookfn include/linux/netfilter.h:135 [inline] nf_hook_slow+0xc8/0x210 net/netfilter/core.c:512 nf_hook+0x23a/0x310 include/linux/netfilter.h:260 NF_HOOK include/linux/netfilter.h:303 [inline] __br_forward+0x39e/0x720 net/bridge/br_forward.c:109 br_flood+0x7af/0x840 net/bridge/br_forward.c:234 br_handle_frame_finish+0xf37/0x1370 net/bridge/br_input.c:162 br_nf_hook_thresh+0x306/0x390 net/bridge/br_netfilter_hooks.c:1018 br_nf_pre_routing_finish_ipv6+0x8d7/0xb30 net/bridge/br_netfilter_ipv6.c:187 NF_HOOK include/linux/netfilter.h:305 [inline] br_nf_pre_routing_ipv6+0x2ab/0x350 net/bridge/br_netfilter_ipv6.c:236 br_nf_pre_routing+0x6dc/0x13d0 net/bridge/br_netfilter_hooks.c:505 nf_hook_entry_hookfn include/linux/netfilter.h:135 [inline] nf_hook_bridge_pre net/bridge/br_input.c:223 [inline] br_handle_frame+0x7d9/0xeb0 net/bridge/br_input.c:348 __netif_receive_skb_core+0x1a7d/0x3470 net/core/dev.c:4911 __netif_receive_skb_one_core net/core/dev.c:5008 [inline] __netif_receive_skb+0xc5/0x370 net/core/dev.c:5124 process_backlog+0x4d8/0x910 net/core/dev.c:5955 napi_poll net/core/dev.c:6392 [inline] net_rx_action+0x5ef/0x10d0 net/core/dev.c:6460 __do_softirq+0x333/0x7c4 arch/x86/include/asm/paravirt.h:766 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1082 do_softirq+0xfd/0x190 kernel/softirq.c:337 __local_bh_enable_ip+0x194/0x240 kernel/softirq.c:189 local_bh_enable+0x1f/0x30 include/linux/bottom_half.h:32 get_next_corpse net/netfilter/nf_conntrack_core.c:2013 [inline] nf_ct_iterate_cleanup+0x2fa/0x390 net/netfilter/nf_conntrack_core.c:2036 nf_ct_iterate_cleanup_net+0xf9/0x150 net/netfilter/nf_conntrack_core.c:2121 iterate_cleanup_work+0x4f/0xc0 net/netfilter/nf_nat_masquerade.c:216 process_one_work+0x7ef/0x10e0 kernel/workqueue.c:2269 worker_thread+0xc01/0x1630 kernel/workqueue.c:2415 kthread+0x332/0x350 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace e95dc111632d8cea ]--- RIP: 0010:tabledist net/sched/sch_netem.c:333 [inline] RIP: 0010:netem_enqueue+0x1a63/0x33b0 net/sched/sch_netem.c:536 Code: 12 00 00 45 89 26 4c 8b 75 d0 4c 8b 7d b0 48 8b 5d b8 48 85 db 0f 85 25 01 00 00 e8 17 bf 70 fb 43 8d 4c 2d 00 44 89 e0 31 d2 f1 49 63 c5 4c 8b 6d c8 49 29 c5 49 01 d5 e9 be 01 00 00 e8 f4 RSP: 0018:ffff8880aeb090d0 EFLAGS: 00010246 RAX: 00000000a3098912 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000080000302 RDI: 0000000000000000 RBP: ffff8880aeb09178 R08: ffffffff83425523 R09: ffffffff86026117 R10: ffff8880a15fa040 R11: 0000000000000003 R12: 00000000a3098912 R13: 0000000080000000 R14: ffff88808c899000 R15: ffff88808c8992c0 FS: 0000000000000000(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004c75a8 CR3: 000000000886d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400