i know that 5.1.15 was a little old, update after 6 weeks uptime was originally planned with the 5.2.8 release in the hope it contains the "netfilter: conntrack: always store window size un-scaled" patch maybe the root vause is already fixed, upgraded now to 5.2.7 [3723834.867725] kernel BUG at lib/list_debug.c:47! [3723834.870392] invalid opcode: 0000 [#1] SMP NOPTI [3723834.872843] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.1.15-200.fc29.x86_64 #1 [3723834.876700] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/19/2018 [3723834.881939] RIP: 0010:__list_del_entry_valid.cold.1+0x12/0x4c [3723834.882943] Code: c7 ff 0f 0b 48 89 c1 4c 89 c6 48 c7 c7 f0 6b 11 b9 e8 7c 38 c7 ff 0f 0b 48 89 fe 48 89 c2 48 c7 c7 80 6c 11 b9 e8 68 38 c7 ff <0f> 0b 48 c7 c7 30 6d 11 b9 e8 5a 38 c7 ff 0f 0b 48 89 f2 48 89 fe [3723834.886123] RSP: 0018:ffff92a4dd2038e8 EFLAGS: 00010246 [3723834.887060] RAX: 000000000000004e RBX: ffff92a4d5fd6000 RCX: 0000000000000000 [3723834.888315] RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 0000000000000300 [3723834.889570] RBP: ffff92a4c5500000 R08: 000000000000048f R09: 0000000000000003 [3723834.890825] R10: 0000000000000000 R11: 0000000000000001 R12: ffff92a4d5fd6010 [3723834.892082] R13: ffff92a4c6a4bfa8 R14: ffff92a4c55000f8 R15: ffff92a4c5500000 [3723834.893343] FS: 0000000000000000(0000) GS:ffff92a4dd200000(0000) knlGS:0000000000000000 [3723834.894758] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [3723834.895859] CR2: 00007fb811913048 CR3: 00000000996da002 CR4: 00000000003606f0 [3723834.897173] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [3723834.898445] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [3723834.899715] Call Trace: [3723834.900262] <IRQ> [3723834.900678] recent_entry_update+0x52/0xa0 [xt_recent] [3723834.901619] recent_mt+0x197/0x37d [xt_recent] [3723834.902444] ipt_do_table+0x25f/0x630 [ip_tables] [3723834.903312] ? l4proto_manip_pkt+0x299/0x450 [nf_nat] [3723834.904230] nf_hook_slow+0x44/0xc0 [3723834.904886] ip_forward+0x458/0x480 [3723834.905541] ? ip_defrag.cold.12+0x33/0x33 [3723834.906297] ip_rcv+0xbc/0xd0 [3723834.906868] ? ip_rcv_finish_core.isra.19+0x350/0x350 [3723834.907785] __netif_receive_skb_one_core+0x52/0x70 [3723834.908671] netif_receive_skb_internal+0x42/0xf0 [3723834.909554] ? fdb_find_rcu+0xe7/0x160 [bridge] [3723834.910383] netif_receive_skb+0x17/0xa0 [3723834.911111] br_pass_frame_up+0x12f/0x150 [bridge] [3723834.911995] ? fdb_find_rcu+0xe7/0x160 [bridge] [3723834.912826] br_handle_frame_finish+0x170/0x430 [bridge] [3723834.913807] ? nf_confirm+0xcb/0xf0 [nf_conntrack] [3723834.914682] ? br_handle_frame_finish+0x430/0x430 [bridge] [3723834.915690] br_handle_frame+0x154/0x330 [bridge] [3723834.916550] ? ip_output+0x69/0xe0 [3723834.917191] __netif_receive_skb_core+0x34a/0xc60 [3723834.918051] ? __build_skb+0x25/0xe0 [3723834.918720] ? ip_defrag.cold.12+0x33/0x33 [3723834.919477] ? __build_skb+0x25/0xe0 [3723834.920146] __netif_receive_skb_one_core+0x36/0x70 [3723834.921033] netif_receive_skb_internal+0x42/0xf0 [3723834.921897] napi_gro_receive+0xed/0x150 [3723834.922632] vmxnet3_rq_rx_complete+0x950/0xe80 [vmxnet3] [3723834.923606] vmxnet3_poll_rx_only+0x31/0xa0 [vmxnet3] [3723834.924521] net_rx_action+0x149/0x3b0 [3723834.925220] __do_softirq+0xe3/0x30a [3723834.925891] irq_exit+0xeb/0xf0 [3723834.926488] do_IRQ+0x85/0xd0 [3723834.927058] common_interrupt+0xf/0xf [3723834.927740] </IRQ> [3723834.928163] RIP: 0010:native_safe_halt+0xe/0x10 [3723834.928991] Code: ff ff 7f c3 65 48 8b 04 25 00 5c 01 00 3e 80 48 02 20 48 8b 00 a8 08 75 c4 eb 80 90 e9 07 00 00 00 0f 00 2d 76 60 46 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d 66 60 46 00 f4 c3 90 90 0f 1f 44 00 [3723834.932213] RSP: 0018:ffffffffb9203e98 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffdb [3723834.933578] RAX: ffffffffb89a2410 RBX: 0000000000000000 RCX: 7ff2c5223c3f2f4a [3723834.934897] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff92a4dd21b4e0 [3723834.936171] RBP: 0000000000000000 R08: ffffb6e0c0957a50 R09: 0000000000000000 [3723834.937440] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 [3723834.938709] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [3723834.939980] ? __sched_text_end+0x6/0x6 [3723834.940693] default_idle+0x1c/0x140 [3723834.941364] do_idle+0x1e1/0x260 [3723834.942070] ? do_idle+0x7/0x260 [3723834.942735] cpu_startup_entry+0x19/0x20 [3723834.943465] start_kernel+0x4f7/0x517 [3723834.944151] secondary_startup_64+0xa4/0xb0 [3723834.944922] Modules linked in: nf_conntrack_netlink sch_hfsc bridge stp llc xt_multiport ipt_REJECT nf_reject_ipv4 iptable_filter nfnetlink_log xt_NFLOG xt_limit xt_tcpmss xt_connlimit nf_conncount xt_recent xt_conntrack iptable_mangle xt_CT iptable_raw xt_iprange xt_NETMAP xt_nat xt_set iptable_nat ip_set_list_set ip_set_hash_ip ip_set_hash_net ip_set_bitmap_port ip_set nfnetlink nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c crct10dif_pclmul crc32_pclmul ghash_clmulni_intel vmxnet3 ip_tables crc32c_intel vmw_pvscsi [last unloaded: inet_diag] [3723834.958381] ---[ end trace 22f5d74f90a5d340 ]--- [3723834.960984] RIP: 0010:__list_del_entry_valid.cold.1+0x12/0x4c [3723834.962674] Code: c7 ff 0f 0b 48 89 c1 4c 89 c6 48 c7 c7 f0 6b 11 b9 e8 7c 38 c7 ff 0f 0b 48 89 fe 48 89 c2 48 c7 c7 80 6c 11 b9 e8 68 38 c7 ff <0f> 0b 48 c7 c7 30 6d 11 b9 e8 5a 38 c7 ff 0f 0b 48 89 f2 48 89 fe [3723834.965917] RSP: 0018:ffff92a4dd2038e8 EFLAGS: 00010246 [3723834.966867] RAX: 000000000000004e RBX: ffff92a4d5fd6000 RCX: 0000000000000000 [3723834.968144] RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 0000000000000300 [3723834.969422] RBP: ffff92a4c5500000 R08: 000000000000048f R09: 0000000000000003 [3723834.970714] R10: 0000000000000000 R11: 0000000000000001 R12: ffff92a4d5fd6010 [3723834.971990] R13: ffff92a4c6a4bfa8 R14: ffff92a4c55000f8 R15: ffff92a4c5500000 [3723834.973266] FS: 0000000000000000(0000) GS:ffff92a4dd200000(0000) knlGS:0000000000000000 [3723834.974697] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [3723834.975730] CR2: 00007fb811913048 CR3: 00000000996da002 CR4: 00000000003606f0 [3723834.977050] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [3723834.978323] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [3723834.979600] Kernel panic - not syncing: Fatal exception in interrupt [3723834.980790] Kernel Offset: 0x37000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [3723834.982677] Rebooting in 1 seconds.. [3723835.983434] ACPI MEMORY or I/O RESET_REG
