[PVE-User] Kernel oops skb_warn_bad_offload in proxmox 5.0

[Eric Dillmann]

Hi,

I'm using Proxmox 5.0 with latest kernel : 4.10.17-3-pve

I get the following warning in kernel logs :

Has this something to do with : https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1715609 ?

Regards,
Eric


[88355.932209] ------------[ cut here ]------------
[88355.932215] WARNING: CPU: 5 PID: 3189 at net/core/dev.c:2576 skb_warn_bad_offload+0xd1/0x120
[88355.932217] tun0: caps=(0x0000040000001080, 0x0000000000000000) len=5633 data_len=5605 gso_size=1400 gso_type=2 ip_summed=0
[88355.932217] Modules linked in: nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_state binfmt_misc ip6table_nat nf_nat_ipv6 xt_REDIRECT nf_nat_redirect iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_nat iptable_nat nf_nat_ipv4 xt_TCPMSS xt_CT iptable_raw veth ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables ipt_REJECT nf_reject_ipv4 xt_physdev xt_comment nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp xt_mark xt_set xt_addrtype xt_conntrack ip_set_hash_net ip_set xt_multiport iptable_filter softdog nfnetlink_log nfnetlink zfs(PO) zunicode(PO) zavl(PO) icp(PO) intel_rapl sb_edac edac_core zcommon(PO) x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel znvpair(PO) ipmi_ssif spl(O) gpio_ich mxm_wmi kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel
[88355.932246]  pcbc aesni_intel ast aes_x86_64 crypto_simd ttm glue_helper cryptd drm_kms_helper intel_cstate snd_pcm drm snd_timer snd intel_rapl_perf i2c_algo_bit soundcore fb_sys_fops syscopyarea input_leds joydev pcspkr sysfillrect sysimgblt mei_me intel_pch_thermal ioatdma mei lpc_ich shpchp ipmi_si ipmi_devintf ipmi_msghandler wmi acpi_pad mac_hid vhost_net vhost macvtap macvlan ib_iser rdma_cm iw_cm ib_cm ib_core configfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi nf_nat_ftp nf_nat nf_conntrack_ftp 8021q garp mrp ip_vs_wrr ip_vs nf_conntrack sunrpc vxlan ip6_udp_tunnel udp_tunnel ip_tables x_tables autofs4 xfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear hid_generic usbkbd usbmouse usbhid hid raid1 ahci i2c_i801
[88355.932283]  libahci igb(O) ixgbe(O) dca ptp pps_core fjes
[88355.932288] CPU: 5 PID: 3189 Comm: pvestatd Tainted: P        W  O    4.10.17-3-pve #1
[88355.932288] Hardware name: Supermicro Super Server/X10SDV-TLN4F, BIOS 1.0b 09/09/2015
[88355.932289] Call Trace:
[88355.932290]  <IRQ>
[88355.932296]  dump_stack+0x63/0x81
[88355.932297]  __warn+0xcb/0xf0
[88355.932298]  warn_slowpath_fmt+0x5f/0x80
[88355.932300]  skb_warn_bad_offload+0xd1/0x120
[88355.932302]  __skb_gso_segment+0x181/0x190
[88355.932304]  validate_xmit_skb+0x14f/0x2a0
[88355.932305]  validate_xmit_skb_list+0x43/0x70
[88355.932310]  sch_direct_xmit+0x16b/0x1c0
[88355.932311]  __dev_queue_xmit+0x477/0x680
[88355.932313]  dev_queue_xmit+0x10/0x20
[88355.932314]  neigh_direct_output+0x11/0x20
[88355.932317]  ip_finish_output2+0x170/0x370
[88355.932318]  ip_finish_output+0x1c7/0x270
[88355.932319]  ip_output+0x76/0xe0
[88355.932321]  ? ip_fragment.constprop.49+0x80/0x80
[88355.932322]  ip_forward_finish+0x43/0x70
[88355.932323]  ip_forward+0x382/0x460
[88355.932324]  ? ip_frag_mem+0x50/0x50
[88355.932325]  ip_rcv_finish+0x118/0x3f0
[88355.932326]  ip_rcv+0x282/0x390
[88355.932327]  ? inet_del_offload+0x40/0x40
[88355.932328]  __netif_receive_skb_core+0x514/0xa40
[88355.932330]  ? sched_set_stop_task+0x40/0xb0
[88355.932331]  ? ttwu_do_wakeup+0x19/0xe0
[88355.932332]  __netif_receive_skb+0x18/0x60
[88355.932333]  process_backlog+0x95/0x150
[88355.932335]  net_rx_action+0x23e/0x380
[88355.932338]  ? lapic_next_deadline+0x26/0x30
[88355.932342]  __do_softirq+0x104/0x2af
[88355.932344]  do_softirq_own_stack+0x1c/0x30
[88355.932345]  </IRQ>
[88355.932347]  do_softirq.part.18+0x41/0x50
[88355.932348]  __local_bh_enable_ip+0x7d/0x80
[88355.932350]  ip_finish_output2+0x183/0x370
[88355.932351]  ip_finish_output+0x1c7/0x270
[88355.932352]  ip_output+0x76/0xe0
[88355.932353]  ? ip_fragment.constprop.49+0x80/0x80
[88355.932354]  ip_local_out+0x35/0x40
[88355.932355]  ip_send_skb+0x19/0x40
[88355.932357]  udp_send_skb+0xae/0x280
[88355.932358]  udp_sendmsg+0x332/0x9e0
[88355.932360]  ? ip_reply_glue_bits+0x50/0x50
[88355.932362]  ? aa_sk_perm+0x78/0x270
[88355.932364]  ? aa_sock_msg_perm+0x61/0x150
[88355.932366]  inet_sendmsg+0x31/0xb0
[88355.932368]  sock_sendmsg+0x38/0x50
[88355.932370]  SYSC_sendto+0x101/0x190
[88355.932371]  ? SYSC_getpeername+0xa3/0x100
[88355.932374]  ? __do_page_fault+0x266/0x4e0
[88355.932376]  SyS_sendto+0xe/0x10
[88355.932377]  entry_SYSCALL_64_fastpath+0x1e/0xad
[88355.932379] RIP: 0033:0x7fa7e80c15bd
[88355.932380] RSP: 002b:00007fff5a3b0638 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[88355.932381] RAX: ffffffffffffffda RBX: 0000564f6fef2cc0 RCX: 00007fa7e80c15bd
[88355.932381] RDX: 00000000000015e5 RSI: 0000564f735233c0 RDI: 0000000000000008
[88355.932382] RBP: 0000564f6fef2cd8 R08: 0000000000000000 R09: 0000000000000000
[88355.932383] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000050fe0430
[88355.932383] R13: 0000000000000012 R14: 0000000000000400 R15: 0000000000000012
[88355.932384] ---[ end trace bcfc0a113d35a0c7 ]---