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@FingerlessGlov3s
Created September 3, 2019 17:02
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Docker/Mailcow Kernel Panic - Ubuntu 18.04.3 - Fully updated - kernel 4.15.0-60-generic #67-Ubuntu SMP Thu Aug 22 16:55:30 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
[ 997.893564] kernel BUG at /build/linux-5mCauq/linux-4.15.0/net/ipv4/ip_output.c:636!
[ 997.912143] invalid opcode: 0000 [#1] SMP NOPTI
[ 997.913535] Modules linked in: ip6t_MASQUERADE nf_nat_masquerade_ipv6 nf_tables_ipv4 nf_tables ip6table_security ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_raw ip6table_mangle iptable_security iptable_raw iptable_mangle ip6table_filter ip6_tables xt_nat xt_tcpudp veth ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc aufs overlay kvm_amd nls_iso8859_1 kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel joydev input_leds serio_raw sch_fq_codel mac_hid qemu_fw_cfg ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs
[ 997.933662] zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear aesni_intel aes_x86_64 crypto_simd cryptd glue_helper psmouse virtio_blk virtio_scsi virtio_net i2c_piix4 pata_acpi floppy
[ 997.939253] CPU: 0 PID: 7 Comm: ksoftirqd/0 Not tainted 4.15.0-60-generic #67-Ubuntu
[ 997.941822] Hardware name: Scaleway Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015
[ 997.943614] RIP: 0010:ip_do_fragment+0x482/0x820
[ 997.944698] RSP: 0018:ffffb55c006678f8 EFLAGS: 00010202
[ 997.945878] RAX: 0000000000000001 RBX: ffff8b7fbe8e9b00 RCX: ffffffffbea4cdf0
[ 997.947400] RDX: 0000000000000024 RSI: 00000000000005c8 RDI: ffff8b7f83623200
[ 997.949352] RBP: ffffb55c00667960 R08: ffff8b7f82ebca00 R09: 00000000000005dc
[ 997.950791] R10: 0000000000000000 R11: ffff8b80ae3b3200 R12: 0000000000000014
[ 997.952257] R13: ffff8b7f83623700 R14: 0000000000000d17 R15: ffff8b7f82ebca4e
[ 997.953728] FS: 0000000000000000(0000) GS:ffff8b80bfc00000(0000) knlGS:0000000000000000
[ 997.955404] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 997.956601] CR2: 0000000000703e10 CR3: 00000000335c6000 CR4: 00000000003406f0
[ 997.958152] Call Trace:
[ 997.958737] ? ip_copy_metadata+0x220/0x220
[ 997.959632] ip_fragment.constprop.45+0x43/0x80
[ 997.960586] ip_finish_output+0x182/0x270
[ 997.961423] ? nf_hook_slow+0x48/0xc0
[ 997.962211] ip_output+0x70/0xe0
[ 997.962917] ? ip_fragment.constprop.45+0x80/0x80
[ 997.963903] ip_forward_finish+0x51/0x80
[ 997.964738] ip_forward+0x376/0x470
[ 997.965507] ? ip4_key_hashfn+0xc0/0xc0
[ 997.966328] ip_rcv_finish+0x129/0x430
[ 997.967141] ip_rcv+0x296/0x360
[ 997.967798] ? inet_del_offload+0x40/0x40
[ 997.968662] __netif_receive_skb_core+0x432/0xb80
[ 997.969682] ? nf_nat_ipv4_in+0x2e/0x80 [nf_nat_ipv4]
[ 997.970767] ? kmem_cache_alloc+0x158/0x1b0
[ 997.971807] ? __build_skb+0x2b/0xf0
[ 997.972825] __netif_receive_skb+0x18/0x60
[ 997.973792] ? __netif_receive_skb+0x18/0x60
[ 997.974670] netif_receive_skb_internal+0x45/0xe0
[ 997.975655] napi_gro_receive+0xc5/0xf0
[ 997.976484] receive_buf+0x402/0x1500 [virtio_net]
[ 997.977618] ? __slab_free+0x14d/0x2c0
[ 997.978502] ? vring_unmap_one+0x1b/0x80
[ 997.979327] ? detach_buf+0x71/0x120
[ 997.980068] virtnet_poll+0x152/0x2bd [virtio_net]
[ 997.981079] ? __switch_to_asm+0x35/0x70
[ 997.981918] net_rx_action+0x140/0x3a0
[ 997.982709] ? __switch_to_asm+0x41/0x70
[ 997.983519] __do_softirq+0xe4/0x2d4
[ 997.984316] run_ksoftirqd+0x22/0x60
[ 997.985078] smpboot_thread_fn+0xfc/0x170
[ 997.986051] kthread+0x121/0x140
[ 997.986762] ? sort_range+0x30/0x30
[ 997.987490] ? kthread_create_worker_on_cpu+0x70/0x70
[ 997.988674] ret_from_fork+0x22/0x40
[ 997.989451] Code: 8b 87 d8 00 00 00 48 2b 87 d0 00 00 00 39 c2 0f 87 f4 00 00 00 8b 87 e4 00 00 00 83 f8 01 0f 85 e5 00 00 00 48 83 7f 18 00 74 8e <0f> 0b 8b 0a 89 08 44 89 e1 8b 54 0a fc 89 54 08 fc e9 00 fd ff
[ 997.993644] RIP: ip_do_fragment+0x482/0x820 RSP: ffffb55c006678f8
[ 997.995607] ---[ end trace 86c358de0d923758 ]---
[ 997.996549] Kernel panic - not syncing: Fatal exception in interrupt
[ 997.999001] Kernel Offset: 0x3d200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 998.001558] ---[ end Kernel panic - not syncing: Fatal exception in interrupt
@rg2k
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rg2k commented Sep 11, 2019

I have the same issue.

@FingerlessGlov3s
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Issue is fixed in the new kernel they've released.

4.15.0-62

@rg2k
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rg2k commented Sep 11, 2019

Thanks! Update was not available through the usual channels but I got it now.

@FingerlessGlov3s
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Strange, I didn't have to do anything special to get the update 🤔

@rg2k
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rg2k commented Sep 11, 2019

That is strange. Might have been a caching issue somewhere... but you got me on the right track so it's sorted now.

@FingerlessGlov3s
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Glad to hear it's all working now 😊
Maybe it was a mirror not fully in sync 🤔

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