** Changed in: openstack-ansible/juno
Status: Confirmed => Won't Fix
** Changed in: openstack-ansible/kilo
Status: Confirmed => Fix Committed
** Changed in: openstack-ansible/trunk
Status: Confirmed => In Progress
** Changed in: openstack-ansible/trunk
Status: In Progress => Fix Committed
** Changed in: openstack-ansible/kilo
Milestone: None => 11.2.4
** Changed in: openstack-ansible/kilo
Assignee: (unassigned) => Evan Callicoat (apsu-2)
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https://bugs.launchpad.net/bugs/1488815
Title:
Kernel traces with skb_warn_bad_offload showing up during an AIO
deployment on Ubuntu 14.04
Status in openstack-ansible:
Fix Committed
Status in openstack-ansible juno series:
Won't Fix
Status in openstack-ansible kilo series:
Fix Committed
Status in openstack-ansible trunk series:
Fix Committed
Status in linux package in Ubuntu:
Incomplete
Status in qemu-kvm package in Ubuntu:
New
Bug description:
Setting up an os-ansible-deployment AIO in a VM running in KVM results
in kernel traces with skb_warn_bad_offload during the setup phase.
This is happening regardless of the kernel (tested with 3.13, 3.16 and
3.19) on a fresh VM with no specific customization.
Order of steps to reproduce:
1) launch image from ubuntu cloud catalog
2) apt-get diet-upgrade
3) apt-get install git linux-image-virtual-lts-vivid
4) git clone https://github.com/stackforge/os-ansible-deployment.git
5) cd os-ansible-deployment
6) git checkout kilo
7) ./scripts/bootstrap-ansible.sh
8) ./scripts/run-aio-build.sh
This appears to be harmless as the deployment eventually succeeds.
Here is a brief extract of the traces:
Aug 26 07:57:27 test-osad kernel: [ 4695.687317] ------------[ cut here
]------------
Aug 26 07:57:27 test-osad kernel: [ 4695.687328] WARNING: CPU: 0 PID: 20433
at /build/linux-lts-vivid-BZwsXG/linux-lts-vivid-3.19.0/net/core/dev.c:2302
skb_warn_bad_offload+0xd5/0xe2()
Aug 26 07:57:27 test-osad kernel: [ 4695.687332] : caps=(0x000000801fdb78e9,
0x000000801fdb78e9) len=4396 data_len=2920 gso_size=1448 gso_type=1 ip_summed=3
Aug 26 07:57:27 test-osad kernel: [ 4695.687334] Modules linked in: vhost_net
vhost macvtap macvlan nbd iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi
ipt_REJECT nf_reject_ipv4 ip6table_filter ip6_tables dm_snapshot dm_bufio
dm_multipath scsi_dh 8021q garp mrp veth ipt_MASQUERADE nf_nat_masquerade_ipv4
xt_CHECKSUM xt_tcpudp bridge stp llc btrfs xor raid6_pq ufs qnx4 hfsplus hfs
minix ntfs msdos jfs xfs libcrc32c vxlan ip6_udp_tunnel udp_tunnel
iptable_mangle iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat
nf_conntrack iptable_filter ip_tables x_tables dm_crypt kvm_amd ppdev kvm
parport_pc parport serio_raw crct10dif_pclmul crc32_pclmul ghash_clmulni_intel
aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd psmouse
floppy
Aug 26 07:57:27 test-osad kernel: [ 4695.687390] CPU: 0 PID: 20433 Comm: ssh
Tainted: G W 3.19.0-26-generic #28~14.04.1-Ubuntu
Aug 26 07:57:27 test-osad kernel: [ 4695.687392] Hardware name: OpenStack
Foundation OpenStack Nova, BIOS Bochs 01/01/2011
Aug 26 07:57:27 test-osad kernel: [ 4695.687395] ffffffff81b3db38
ffff880266e576f8 ffffffff817aeed7 0000000000000000
Aug 26 07:57:27 test-osad kernel: [ 4695.687399] ffff880266e57748
ffff880266e57738 ffffffff81074d8a ffff880266e57788
Aug 26 07:57:27 test-osad kernel: [ 4695.687402] ffff8803736ef4e8
ffff88042caba000 0000000000000001 0000000000000003
Aug 26 07:57:27 test-osad kernel: [ 4695.687406] Call Trace:
Aug 26 07:57:27 test-osad kernel: [ 4695.687414] [<ffffffff817aeed7>]
dump_stack+0x45/0x57
Aug 26 07:57:27 test-osad kernel: [ 4695.687420] [<ffffffff81074d8a>]
warn_slowpath_common+0x8a/0xc0
Aug 26 07:57:27 test-osad kernel: [ 4695.687424] [<ffffffff81074e06>]
warn_slowpath_fmt+0x46/0x50
Aug 26 07:57:27 test-osad kernel: [ 4695.687427] [<ffffffff817b185a>]
skb_warn_bad_offload+0xd5/0xe2
Aug 26 07:57:27 test-osad kernel: [ 4695.687434] [<ffffffff816a669c>]
skb_checksum_help+0x1ac/0x1c0
Aug 26 07:57:27 test-osad kernel: [ 4695.687441] [<ffffffffc05ea079>]
checksum_tg+0x29/0x30 [xt_CHECKSUM]
Aug 26 07:57:27 test-osad kernel: [ 4695.687446] [<ffffffffc0476009>]
ipt_do_table+0x2d9/0x6bd [ip_tables]
Aug 26 07:57:27 test-osad kernel: [ 4695.687451] [<ffffffffc0476062>] ?
ipt_do_table+0x332/0x6bd [ip_tables]
Aug 26 07:57:27 test-osad kernel: [ 4695.687455] [<ffffffffc0476062>] ?
ipt_do_table+0x332/0x6bd [ip_tables]
Aug 26 07:57:27 test-osad kernel: [ 4695.687461] [<ffffffff816e7cf0>] ?
ip_fragment+0x8a0/0x8a0
Aug 26 07:57:27 test-osad kernel: [ 4695.687464] [<ffffffffc0484066>]
iptable_mangle_hook+0x66/0x140 [iptable_mangle]
Aug 26 07:57:27 test-osad kernel: [ 4695.687467] [<ffffffff816e7cf0>] ?
ip_fragment+0x8a0/0x8a0
Aug 26 07:57:27 test-osad kernel: [ 4695.687470] [<ffffffff816dcb1a>]
nf_iterate+0x9a/0xb0
Aug 26 07:57:27 test-osad kernel: [ 4695.687472] [<ffffffff816e7cf0>] ?
ip_fragment+0x8a0/0x8a0
Aug 26 07:57:27 test-osad kernel: [ 4695.687475] [<ffffffff816dcba4>]
nf_hook_slow+0x74/0x130
Aug 26 07:57:27 test-osad kernel: [ 4695.687477] [<ffffffff816e7cf0>] ?
ip_fragment+0x8a0/0x8a0
Aug 26 07:57:27 test-osad kernel: [ 4695.687479] [<ffffffff816e6bc0>] ?
ip_forward_options+0x1c0/0x1c0
Aug 26 07:57:27 test-osad kernel: [ 4695.687481] [<ffffffff816e9952>]
ip_output+0x92/0xa0
Aug 26 07:57:27 test-osad kernel: [ 4695.687484] [<ffffffff816e909a>] ?
__ip_local_out+0xaa/0xb0
Aug 26 07:57:27 test-osad kernel: [ 4695.687486] [<ffffffff816e90d0>]
ip_local_out_sk+0x30/0x40
Aug 26 07:57:27 test-osad kernel: [ 4695.687488] [<ffffffff816e9449>]
ip_queue_xmit+0x149/0x3d0
Aug 26 07:57:27 test-osad kernel: [ 4695.687491] [<ffffffff81700d9a>]
tcp_transmit_skb+0x4aa/0x950
Aug 26 07:57:27 test-osad kernel: [ 4695.687494] [<ffffffff817013c2>]
tcp_write_xmit+0x182/0xd10
Aug 26 07:57:27 test-osad kernel: [ 4695.687497] [<ffffffff817021c2>]
__tcp_push_pending_frames+0x32/0xd0
Aug 26 07:57:27 test-osad kernel: [ 4695.687500] [<ffffffff816f0e6f>]
tcp_push+0xef/0x120
Aug 26 07:57:27 test-osad kernel: [ 4695.687502] [<ffffffff816f4659>]
tcp_sendmsg+0xb9/0xc60
Aug 26 07:57:27 test-osad kernel: [ 4695.687507] [<ffffffff8171ec93>]
inet_sendmsg+0x63/0xb0
Aug 26 07:57:27 test-osad kernel: [ 4695.687512] [<ffffffff81347471>] ?
apparmor_socket_sendmsg+0x21/0x30
Aug 26 07:57:27 test-osad kernel: [ 4695.687515] [<ffffffff8168dbe7>]
sock_aio_write+0x117/0x140
Aug 26 07:57:27 test-osad kernel: [ 4695.687520] [<ffffffff811ebaaa>]
do_sync_write+0x5a/0x90
Aug 26 07:57:27 test-osad kernel: [ 4695.687524] [<ffffffff811ec515>]
vfs_write+0x195/0x1f0
Aug 26 07:57:27 test-osad kernel: [ 4695.687527] [<ffffffff811ecf2e>] ?
vfs_read+0x11e/0x140
Aug 26 07:57:27 test-osad kernel: [ 4695.687530] [<ffffffff811ed046>]
SyS_write+0x46/0xb0
Aug 26 07:57:27 test-osad kernel: [ 4695.687534] [<ffffffff810df111>] ?
posix_ktime_get_ts+0x11/0x20
Aug 26 07:57:27 test-osad kernel: [ 4695.687537] [<ffffffff817b688d>]
system_call_fastpath+0x16/0x1b
Aug 26 07:57:27 test-osad kernel: [ 4695.687540] ---[ end trace
17da8a026eae9b77 ]---
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