divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9557 Comm: kworker/1:3 Not tainted 5.4.0-rc5+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events iterate_cleanup_work RIP: 0010:tabledist.part.0+0x13f/0x170 net/sched/sch_netem.c:333 Code: e8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 e8 28 af a2 fb 48 81 eb 00 10 00 00 eb a5 e8 1a af a2 fb 43 8d 0c 24 44 89 f0 31 d2 f1 4d 29 e5 49 01 d5 eb c5 48 89 df e8 ef 0d de fb e9 0d ff ff RSP: 0018:ffff8880ae908f48 EFLAGS: 00010246 RAX: 00000000ff4b48d7 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff85d07296 RDI: 0000000000000005 RBP: ffff8880ae908f70 R08: ffff8880878f2700 R09: ffffed101092042f R10: ffffed101092042e R11: ffff888084902177 R12: ffffffff80000000 R13: 0000000000000000 R14: 00000000ff4b48d7 R15: ffff888084902000 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd65118b000 CR3: 0000000008e6d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tabledist net/sched/sch_netem.c:536 [inline] netem_enqueue+0x416/0x2e10 net/sched/sch_netem.c:536 __dev_xmit_skb net/core/dev.c:3531 [inline] __dev_queue_xmit+0x157e/0x3720 net/core/dev.c:3842 dev_queue_xmit+0x18/0x20 net/core/dev.c:3906 br_dev_queue_push_xmit+0x3f3/0x5e0 net/bridge/br_forward.c:52 NF_HOOK include/linux/netfilter.h:305 [inline] NF_HOOK include/linux/netfilter.h:299 [inline] br_forward_finish+0xfa/0x400 net/bridge/br_forward.c:65 NF_HOOK include/linux/netfilter.h:305 [inline] NF_HOOK include/linux/netfilter.h:299 [inline] __br_forward+0x641/0xb00 net/bridge/br_forward.c:109 deliver_clone+0x61/0xc0 net/bridge/br_forward.c:125 maybe_deliver+0x2c7/0x390 net/bridge/br_forward.c:181 br_flood+0x13a/0x3d0 net/bridge/br_forward.c:223 br_dev_xmit+0x98c/0x15a0 net/bridge/br_device.c:100 __netdev_start_xmit include/linux/netdevice.h:4420 [inline] netdev_start_xmit include/linux/netdevice.h:4434 [inline] xmit_one net/core/dev.c:3280 [inline] dev_hard_start_xmit+0x1a3/0x9b0 net/core/dev.c:3296 __dev_queue_xmit+0x2c6c/0x3720 net/core/dev.c:3873 dev_queue_xmit+0x18/0x20 net/core/dev.c:3906 neigh_hh_output include/net/neighbour.h:500 [inline] neigh_output include/net/neighbour.h:509 [inline] ip6_finish_output2+0xf58/0x2550 net/ipv6/ip6_output.c:116 __ip6_finish_output+0x444/0xaa0 net/ipv6/ip6_output.c:142 ip6_finish_output+0x38/0x1f0 net/ipv6/ip6_output.c:152 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip6_output+0x235/0x7f0 net/ipv6/ip6_output.c:175 dst_output include/net/dst.h:436 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] NF_HOOK include/linux/netfilter.h:299 [inline] mld_sendpack+0x9c7/0xed0 net/ipv6/mcast.c:1682 mld_send_cr net/ipv6/mcast.c:1978 [inline] mld_ifc_timer_expire+0x449/0x8a0 net/ipv6/mcast.c:2477 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1773 [inline] __run_timers kernel/time/timer.c:1740 [inline] run_timer_softirq+0x6c3/0x1790 kernel/time/timer.c:1786 __do_softirq+0x262/0x98c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 RIP: 0010:should_resched arch/x86/include/asm/preempt.h:102 [inline] RIP: 0010:__local_bh_enable_ip+0x18e/0x270 kernel/softirq.c:196 Code: 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 df 00 00 00 48 83 3d 3f 2b ad 07 00 0f 84 8f 00 00 00 fb 66 0f 1f 44 00 00 <65> 8b 05 43 0b bc 7e 85 c0 74 7f 5b 41 5c 41 5d 5d c3 80 3d 2c a3 RSP: 0018:ffff888084aa7bb0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff11e63be RBX: 0000000000000200 RCX: 0000000000000006 RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff8880878f2f94 RBP: ffff888084aa7bc8 R08: 1ffffffff14eff4b R09: fffffbfff14eff4c R10: fffffbfff14eff4b R11: ffffffff8a77fa5f R12: ffffffff85e0ea11 R13: ffff8880878f2700 R14: 0000000000000001 R15: dffffc0000000000 local_bh_enable include/linux/bottom_half.h:32 [inline] get_next_corpse net/netfilter/nf_conntrack_core.c:2013 [inline] nf_ct_iterate_cleanup+0x217/0x4e0 net/netfilter/nf_conntrack_core.c:2036 nf_ct_iterate_cleanup_net net/netfilter/nf_conntrack_core.c:2121 [inline] nf_ct_iterate_cleanup_net+0x133/0x190 net/netfilter/nf_conntrack_core.c:2106 iterate_cleanup_work+0x4a/0xd7 net/netfilter/nf_nat_masquerade.c:216 process_one_work+0x9af/0x1740 kernel/workqueue.c:2269 worker_thread+0x98/0xe40 kernel/workqueue.c:2415 kthread+0x361/0x430 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace a688720b9fd64578 ]--- RIP: 0010:tabledist.part.0+0x13f/0x170 net/sched/sch_netem.c:333 Code: e8 48 83 c4 08 5b 41 5c 41 5d 41 5e 5d c3 e8 28 af a2 fb 48 81 eb 00 10 00 00 eb a5 e8 1a af a2 fb 43 8d 0c 24 44 89 f0 31 d2 f1 4d 29 e5 49 01 d5 eb c5 48 89 df e8 ef 0d de fb e9 0d ff ff RSP: 0018:ffff8880ae908f48 EFLAGS: 00010246 RAX: 00000000ff4b48d7 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff85d07296 RDI: 0000000000000005 RBP: ffff8880ae908f70 R08: ffff8880878f2700 R09: ffffed101092042f R10: ffffed101092042e R11: ffff888084902177 R12: ffffffff80000000 R13: 0000000000000000 R14: 00000000ff4b48d7 R15: ffff888084902000 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd65118b000 CR3: 0000000008e6d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400