[PVE-User] Kernel Errors

[Daniel]

Doese it have any netork trouble or is it working fine just see that error in the kernel log?


--
Grüsse

Daniel

Von: dORSY <dorsyka at yahoo.com>
Datum: Sonntag, 24. September 2017 um 18:24
An: PVE User List <pve-user at pve.proxmox.com>, Daniel <daniel at linux-nerd.de>
Betreff: Re: [PVE-User] Kernel Errors

I also have theese messages.
They must be related to some kernel net driver regression/bug.
As Proxmox does use its own ubuntu-based kernel, this bug seems to be relevant:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1715609
Sometimes disabling gso/gro/lro-like features on the network devices could help, but i tried many of them with no success yet.
with:
ethtool -K ethX lro off
check with ethtool -k ethX
Let's hope ubuntu/proxmox guys fix it soon.

On Sunday, 24 September 2017, 16:40:03 CEST, Daniel <daniel at linux-nerd.de> wrote:


Hi there,

i run a cluster of 18 Proxmox Host in the lates Version and latest Updates installed.

Could someone tell me what this Kernel Message here mean:
After I change Network settings I have this on all Hosts.



[ 4675.285311] ------------[ cut here ]------------
[ 4675.285314] WARNING: CPU: 2 PID: 1972 at net/core/dev.c:2576 skb_warn_bad_offload+0xd1/0x120
[ 4675.285315] igb: caps=(0x0000003000214bb3, 0x0000000000000000) len=1714 data_len=1672 gso_size=1480 gso_type=2 ip_summed=0
[ 4675.285316] Modules linked in: nfsv3 nfs_acl nfs lockd grace fscache veth ip_set ip6table_filter ip6_tables binfmt_misc iptable_filter softdog nfnetlink_log nfnetlink nls_iso8859_1 dm_thin_pool dm_persistent_data dm_bio_prison dm_bufio libcrc32c ipmi_ssif intel_rapl sb_edac edac_core x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass ast ttm drm_kms_helper mei_me drm i2c_algo_bit crct10dif_pclmul mei fb_sys_fops lpc_ich syscopyarea sysfillrect crc32_pclmul snd_pcm ghash_clmulni_intel snd_timer pcbc sysimgblt aesni_intel aes_x86_64 snd soundcore joydev input_leds crypto_simd glue_helper cryptd intel_cstate intel_rapl_perf pcspkr ioatdma ipmi_si ipmi_devintf ipmi_msghandler shpchp mac_hid wmi acpi_pad acpi_power_meter vhost_net vhost macvtap macvlan ib_iser rdma_cm iw_cm ib_cm ib_core
[ 4675.285351]  configfs iscsi_tcp libiscsi_tcp libiscsi sunrpc scsi_transport_iscsi ip_tables x_tables autofs4 btrfs xor raid6_pq hid_generic usbmouse usbkbd usbhid hid megaraid_sas i2c_i801 ahci libahci igb(O) dca ptp pps_core fjes
[ 4675.285358] CPU: 2 PID: 1972 Comm: corosync Tainted: G        W  O    4.10.17-3-pve #1
[ 4675.285359] Hardware name: Supermicro Super Server/X10DRW-i, BIOS 2.0b 04/13/2017
[ 4675.285359] Call Trace:
[ 4675.285362]  dump_stack+0x63/0x81
[ 4675.285363]  __warn+0xcb/0xf0
[ 4675.285364]  warn_slowpath_fmt+0x5f/0x80
[ 4675.285365]  skb_warn_bad_offload+0xd1/0x120
[ 4675.285367]  __skb_gso_segment+0x181/0x190
[ 4675.285368]  validate_xmit_skb+0x14f/0x2a0
[ 4675.285369]  validate_xmit_skb_list+0x43/0x70
[ 4675.285371]  sch_direct_xmit+0x16b/0x1c0
[ 4675.285372]  __dev_queue_xmit+0x477/0x680
[ 4675.285374]  ? dev_queue_xmit+0x10/0x20
[ 4675.285375]  dev_queue_xmit+0x10/0x20
[ 4675.285376]  br_dev_queue_push_xmit+0x7e/0x160
[ 4675.285377]  br_forward_finish+0x3d/0xb0
[ 4675.285378]  ? br_fdb_external_learn_del+0x120/0x120
[ 4675.285379]  __br_forward+0x14a/0x1e0
[ 4675.285380]  ? __kmalloc_reserve.isra.34+0x31/0x90
[ 4675.285381]  br_forward+0xa3/0xb0
[ 4675.285382]  br_dev_xmit+0x1f9/0x2b0
[ 4675.285383]  dev_hard_start_xmit+0xa3/0x1f0
[ 4675.285384]  __dev_queue_xmit+0x5ae/0x680
[ 4675.285385]  dev_queue_xmit+0x10/0x20
[ 4675.285387]  ip_finish_output2+0x27a/0x370
[ 4675.285388]  ip_finish_output+0x1c7/0x270
[ 4675.285389]  ip_output+0x76/0xe0
[ 4675.285390]  ? ip_forward_options+0x1b0/0x1b0
[ 4675.285391]  ip_local_out+0x35/0x40
[ 4675.285392]  ip_send_skb+0x19/0x40
[ 4675.285393]  udp_send_skb+0xae/0x280
[ 4675.285394]  udp_sendmsg+0x332/0x9e0
[ 4675.285395]  ? ip_reply_glue_bits+0x50/0x50
[ 4675.285397]  ? aa_sock_msg_perm+0x61/0x150
[ 4675.285398]  inet_sendmsg+0x31/0xb0
[ 4675.285399]  sock_sendmsg+0x38/0x50
[ 4675.285400]  ___sys_sendmsg+0x2c2/0x2d0
[ 4675.285419]  ? ep_send_events_proc+0x87/0x1a0
[ 4675.285421]  ? ep_poll+0x191/0x350
[ 4675.285422]  ? __fget_light+0x25/0x60
[ 4675.285423]  __sys_sendmsg+0x54/0x90
[ 4675.285425]  SyS_sendmsg+0x12/0x20
[ 4675.285427]  entry_SYSCALL_64_fastpath+0x1e/0xad
[ 4675.285428] RIP: 0033:0x7f5bec484e90
[ 4675.285428] RSP: 002b:00007ffc4bba4a30 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
[ 4675.285430] RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007f5bec484e90
[ 4675.285430] RDX: 0000000000004000 RSI: 00007ffc4bba4a80 RDI: 000000000000000b
[ 4675.285431] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[ 4675.285431] R10: 0000000188de2956 R11: 0000000000000293 R12: 00007f5bed2a6cf8
[ 4675.285432] R13: 00007f5bed2b701e R14: 00007f5bed284010 R15: 000000000000000c
[ 4675.285446] ---[ end trace 5d57510b90b28d5f ]---


--
Grüsse

Daniel
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