Pipework Re-assigning IP to existing container kills host / Segfault

[46labs]

Environment
Ubuntu 14.04 LTS (GNU/Linux 3.13.0-30-generic x86_64)
Docker 1.1.1
Latest Pipework

Method to replicate issue:

Bring up a container with an ip using pipework:

ie. root@docker:~# pipework eth0 -i eth1 0b3 1.1.1.1/24@1.1.1.254

Then run the same command again after the container is up:

root@docker:~# pipework eth0 -i eth1 0b3 1.1.1.1/24@1.1.1.254
Segmentation fault

It segfaults the container, leaves docker in a disk wait mode and hoses the physical host. The only method to get the host to do anything is to hard boot it. It will not respond to a restart inside of linux.

[46labs]

Execute pipework twice on the SAME INTERFACE with new IPs or same and segfaults and throws a kernel error.

ifconfig inside the container will hang the container and throw docker into disk wait mode. Impossible to restart docker process. Shutdown even hangs. This requires a power cycle to resolve.

Note: Running pipework twice on DIFFERENT interfaces works just fine as long as you don't rerun pipework on them once they are up.

How to reproduce:
root@docker:# pipework em1 -i eth0 d9a 10.0.0.17/16@10.0.0.1
root@docker:# pipework em1 -i eth0 d9a 10.0.0.17/16@10.0.0.1
Segmentation fault

Dmesg output after incident:
[ 526.807415] ------------[ cut here ]------------
[ 526.807430] WARNING: CPU: 10 PID: 4798 at /build/buildd/linux-3.13.0/fs/sysfs/dir.c:486 sysfs_warn_dup+0x86/0xa0()
[ 526.807433] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:01.0/0000:02:00.0/net/em1/upper_ph4100eth0'
[ 526.807436] Modules linked in: macvlan ipmi_devintf xt_addrtype xt_conntrack ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack bridge aufs iptable_filter ip_tables x_tables gpio_ich coretemp radeon kvm_intel kvm ttm serio_raw drm_kms_helper drm 8021q i7core_edac lpc_ich garp hpwdt hpilo i2c_algo_bit edac_core ipmi_si stp mac_hid acpi_power_meter mrp llc lp parport tcp_htcp hid_generic bnx2x psmouse usbhid hid hpsa mdio libcrc32c
[ 526.807499] CPU: 10 PID: 4798 Comm: ip Tainted: G I 3.13.0-30-generic #55-Ubuntu
[ 526.807502] Hardware name: HP ProLiant BL460c G6, BIOS I24 01/14/2010
[ 526.807505] 0000000000000009 ffff8805fe9db610 ffffffff8171a324 ffff8805fe9db658
[ 526.807513] ffff8805fe9db648 ffffffff810676bd ffff88060e5ac000 ffff88060e5ac000
[ 526.807519] ffff8800360d37e0 0000000000000000 0000000000000001 ffff8805fe9db6a8
[ 526.807526] Call Trace:
[ 526.807539] [] dump_stack+0x45/0x56
[ 526.807547] [] warn_slowpath_common+0x7d/0xa0
[ 526.807552] [] warn_slowpath_fmt+0x4c/0x50
[ 526.807557] [] sysfs_warn_dup+0x86/0xa0
[ 526.807562] [] sysfs_add_one+0x40/0x50
[ 526.807568] [] sysfs_do_create_link_sd.isra.2+0xbf/0x210
[ 526.807573] [] sysfs_create_link+0x25/0x50
[ 526.807581] [] __netdev_adjacent_dev_insert+0x1d9/0x270
[ 526.807588] [] ? addrconf_leave_anycast+0x90/0xc0
[ 526.807594] [] __netdev_adjacent_dev_link_lists+0x2d/0x80
[ 526.807600] [] __netdev_adjacent_dev_link_neighbour+0x71/0xa0
[ 526.807606] [] __netdev_upper_dev_link+0xf0/0x460
[ 526.807614] [] ? raw_notifier_call_chain+0x16/0x20
[ 526.807620] [] ? dev_queue_xmit_nit+0x220/0x220
[ 526.807625] [] netdev_upper_dev_link+0x12/0x20
[ 526.807633] [] macvlan_common_newlink+0x197/0x3a0 [macvlan]
[ 526.807639] [] ? netif_rx+0x190/0x190
[ 526.807646] [] macvlan_newlink+0x1c/0x20 [macvlan]
[ 526.807653] [] rtnl_newlink+0x4f5/0x5d0
[ 526.807658] [] ? rtnl_newlink+0x13e/0x5d0
[ 526.807665] [] rtnetlink_rcv_msg+0x99/0x260
[ 526.807673] [] ? __alloc_skb+0x7e/0x2b0
[ 526.807678] [] ? rtnetlink_rcv+0x30/0x30
[ 526.807688] [] netlink_rcv_skb+0xa9/0xc0
[ 526.807693] [] rtnetlink_rcv+0x28/0x30
[ 526.807699] [] netlink_unicast+0xd5/0x1b0
[ 526.807704] [] netlink_sendmsg+0x2ff/0x740
[ 526.807712] [] sock_sendmsg+0x8b/0xc0
[ 526.807722] [] ? __mem_cgroup_commit_charge+0x156/0x3d0
[ 526.807729] [] ? move_addr_to_kernel.part.16+0x1e/0x60
[ 526.807735] [] ? move_addr_to_kernel+0x21/0x30
[ 526.807741] [] ___sys_sendmsg+0x3c3/0x3d0
[ 526.807749] [] ? __do_page_fault+0x204/0x560
[ 526.807758] [] ? acct_account_cputime+0x1c/0x20
[ 526.807765] [] ? account_user_time+0x8b/0xa0
[ 526.807769] [] __sys_sendmsg+0x42/0x80
[ 526.807773] [] SyS_sendmsg+0x12/0x20
[ 526.807778] [] tracesys+0xe1/0xe6
[ 526.807780] ---[ end trace 178f5d6eac59ae85 ]---
[ 526.807802] ------------[ cut here ]------------
[ 526.807884] kernel BUG at /build/buildd/linux-3.13.0/net/core/dev.c:6385!
[ 526.807988] invalid opcode: 0000 [#1] SMP
[ 526.808064] Modules linked in: macvlan ipmi_devintf xt_addrtype xt_conntrack ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack bridge aufs iptable_filter ip_tables x_tables gpio_ich coretemp radeon kvm_intel kvm ttm serio_raw drm_kms_helper drm 8021q i7core_edac lpc_ich garp hpwdt hpilo i2c_algo_bit edac_core ipmi_si stp mac_hid acpi_power_meter mrp llc lp parport tcp_htcp hid_generic bnx2x psmouse usbhid hid hpsa mdio libcrc32c
[ 526.809074] CPU: 10 PID: 4798 Comm: ip Tainted: G W I 3.13.0-30-generic #55-Ubuntu
[ 526.809198] Hardware name: HP ProLiant BL460c G6, BIOS I24 01/14/2010
[ 526.809299] task: ffff8805ffc0c7d0 ti: ffff8805fe9da000 task.ti: ffff8805fe9da000
[ 526.809413] RIP: 0010:[] [] free_netdev+0xff/0x110
[ 526.809544] RSP: 0018:ffff8805fe9db8d8 EFLAGS: 00010293
[ 526.809632] RAX: 0000000000000001 RBX: ffff88060e5ae018 RCX: 0000000000000101
[ 526.809771] RDX: 0000000000000001 RSI: 000000000be00bde RDI: 0000000000000286
[ 526.809878] RBP: ffff8805fe9db8f0 R08: fffffee0ffffffc0 R09: ffffffc0ffffffc0
[ 526.809984] R10: 0001d778fffffee0 R11: 0001d778fffffee0 R12: ffff88060e5ae060
[ 526.810091] R13: ffff88060e5ae000 R14: ffff8805fe9db900 R15: ffffffffa0350000
[ 526.810199] FS: 00007f12e4321740(0000) GS:ffff88061faa0000(0000) knlGS:0000000000000000
[ 526.810321] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 526.810407] CR2: 00007fffb6cc63a0 CR3: 000000060b81f000 CR4: 00000000000007e0
[ 526.810514] Stack:
[ 526.810548] 00000000ffffffef ffffffff81cda040 ffff8805fe9db920 ffff8805fe9dbae8
[ 526.810686] ffffffff81630e38 0000000000000000 ffff88060b377c54 0000000000000000
[ 526.810864] ffffffff816309fe ffffffff81cda040 ffff88060b377c10 ffff88060e5ae000
[ 526.811002] Call Trace:
[ 526.811046] [] rtnl_newlink+0x578/0x5d0
[ 526.811130] [] ? rtnl_newlink+0x13e/0x5d0
[ 526.811219] [] rtnetlink_rcv_msg+0x99/0x260
[ 526.811311] [] ? __alloc_skb+0x7e/0x2b0
[ 526.811396] [] ? rtnetlink_rcv+0x30/0x30
[ 526.811482] [] netlink_rcv_skb+0xa9/0xc0
[ 526.811568] [] rtnetlink_rcv+0x28/0x30
[ 526.811653] [] netlink_unicast+0xd5/0x1b0
[ 526.811740] [] netlink_sendmsg+0x2ff/0x740
[ 526.811845] [] sock_sendmsg+0x8b/0xc0
[ 526.811961] [] ? __mem_cgroup_commit_charge+0x156/0x3d0
[ 526.812068] [] ? move_addr_to_kernel.part.16+0x1e/0x60
[ 526.812172] [] ? move_addr_to_kernel+0x21/0x30
[ 526.812267] [] ___sys_sendmsg+0x3c3/0x3d0
[ 526.812355] [] ? __do_page_fault+0x204/0x560
[ 526.812448] [] ? acct_account_cputime+0x1c/0x20
[ 526.812543] [] ? account_user_time+0x8b/0xa0
[ 526.812636] [] __sys_sendmsg+0x42/0x80
[ 526.812720] [] SyS_sendmsg+0x12/0x20
[ 526.812803] [] tracesys+0xe1/0xe6
[ 526.816823] Code: b0 e6 ff 5b 41 5c 41 5d 5d c3 66 90 e8 bb 50 b6 ff e9 53 ff ff ff 66 0f 1f 44 00 00 4c 89 ef e8 b8 fe ff ff 5b 41 5c 41 5d 5d c3 <0f> 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66
[ 526.825483] RIP [] free_netdev+0xff/0x110
[ 526.829643] RSP
[ 526.833724] ---[ end trace 178f5d6eac59ae86 ]---

[46labs]

root@docker:~# lspci
00:00.0 Host bridge: Intel Corporation 5500 I/O Hub to ESI Port (rev 13)
00:01.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 1 (rev 13)
00:02.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 2 (rev 13)
00:03.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 3 (rev 13)
00:07.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 7 (rev 13)
00:08.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 8 (rev 13)
00:09.0 PCI bridge: Intel Corporation 7500/5520/5500/X58 I/O Hub PCI Express Root Port 9 (rev 13)
00:0a.0 PCI bridge: Intel Corporation 7500/5520/5500/X58 I/O Hub PCI Express Root Port 10 (rev 13)
00:0d.0 Host bridge: Intel Corporation Device 343a (rev 13)
00:0d.1 Host bridge: Intel Corporation Device 343b (rev 13)
00:0d.2 Host bridge: Intel Corporation Device 343c (rev 13)
00:0d.3 Host bridge: Intel Corporation Device 343d (rev 13)
00:0d.4 Host bridge: Intel Corporation 7500/5520/5500/X58 Physical Layer Port 0 (rev 13)
00:0d.5 Host bridge: Intel Corporation 7500/5520/5500 Physical Layer Port 1 (rev 13)
00:0d.6 Host bridge: Intel Corporation Device 341a (rev 13)
00:0e.0 Host bridge: Intel Corporation Device 341c (rev 13)
00:0e.1 Host bridge: Intel Corporation Device 341d (rev 13)
00:0e.2 Host bridge: Intel Corporation Device 341e (rev 13)
00:0e.3 Host bridge: Intel Corporation Device 341f (rev 13)
00:0e.4 Host bridge: Intel Corporation Device 3439 (rev 13)
00:14.0 PIC: Intel Corporation 7500/5520/5500/X58 I/O Hub System Management Registers (rev 13)
00:14.1 PIC: Intel Corporation 7500/5520/5500/X58 I/O Hub GPIO and Scratch Pad Registers (rev 13)
00:14.2 PIC: Intel Corporation 7500/5520/5500/X58 I/O Hub Control Status and RAS Registers (rev 13)
00:1c.0 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 1
00:1d.0 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #1
00:1d.1 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #2
00:1d.2 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #3
00:1d.3 USB controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #6
00:1d.7 USB controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #1
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90)
00:1f.0 ISA bridge: Intel Corporation 82801JIB (ICH10) LPC Interface Controller
01:03.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] ES1000 (rev 02)
01:04.0 System peripheral: Compaq Computer Corporation Integrated Lights Out Controller (rev 03)
01:04.2 System peripheral: Compaq Computer Corporation Integrated Lights Out Processor (rev 03)
01:04.4 USB controller: Hewlett-Packard Company Integrated Lights-Out Standard Virtual USB Controller
01:04.6 IPMI SMIC interface: Hewlett-Packard Company Integrated Lights-Out Standard KCS Interface
02:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM57711E 10-Gigabit PCIe
02:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM57711E 10-Gigabit PCIe
0c:00.0 RAID bus controller: Hewlett-Packard Company Smart Array G6 controllers (rev 01)
3e:00.0 Host bridge: Intel Corporation Xeon 5500/Core i7 QuickPath Architecture Generic Non-Core Registers (rev 05)
3e:00.1 Host bridge: Intel Corporation Xeon 5500/Core i7 QuickPath Architecture System Address Decoder (rev 05)
3e:02.0 Host bridge: Intel Corporation Xeon 5500/Core i7 QPI Link 0 (rev 05)
3e:02.1 Host bridge: Intel Corporation Xeon 5500/Core i7 QPI Physical 0 (rev 05)
3e:02.4 Host bridge: Intel Corporation Xeon 5500/Core i7 QPI Link 1 (rev 05)
3e:02.5 Host bridge: Intel Corporation Xeon 5500/Core i7 QPI Physical 1 (rev 05)
3e:03.0 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller (rev 05)
3e:03.1 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Target Address Decoder (rev 05)
3e:03.2 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller RAS Registers (rev 05)
3e:03.4 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Test Registers (rev 05)
3e:04.0 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 0 Control Registers (rev 05)
3e:04.1 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 0 Address Registers (rev 05)
3e:04.2 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 0 Rank Registers (rev 05)
3e:04.3 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 0 Thermal Control Registers (rev 05)
3e:05.0 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 1 Control Registers (rev 05)
3e:05.1 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 1 Address Registers (rev 05)
3e:05.2 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 1 Rank Registers (rev 05)
3e:05.3 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 1 Thermal Control Registers (rev 05)
3e:06.0 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 2 Control Registers (rev 05)
3e:06.1 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 2 Address Registers (rev 05)
3e:06.2 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 2 Rank Registers (rev 05)
3e:06.3 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 2 Thermal Control Registers (rev 05)
3f:00.0 Host bridge: Intel Corporation Xeon 5500/Core i7 QuickPath Architecture Generic Non-Core Registers (rev 05)
3f:00.1 Host bridge: Intel Corporation Xeon 5500/Core i7 QuickPath Architecture System Address Decoder (rev 05)
3f:02.0 Host bridge: Intel Corporation Xeon 5500/Core i7 QPI Link 0 (rev 05)
3f:02.1 Host bridge: Intel Corporation Xeon 5500/Core i7 QPI Physical 0 (rev 05)
3f:02.4 Host bridge: Intel Corporation Xeon 5500/Core i7 QPI Link 1 (rev 05)
3f:02.5 Host bridge: Intel Corporation Xeon 5500/Core i7 QPI Physical 1 (rev 05)
3f:03.0 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller (rev 05)
3f:03.1 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Target Address Decoder (rev 05)
3f:03.2 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller RAS Registers (rev 05)
3f:03.4 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Test Registers (rev 05)
3f:04.0 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 0 Control Registers (rev 05)
3f:04.1 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 0 Address Registers (rev 05)
3f:04.2 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 0 Rank Registers (rev 05)
3f:04.3 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 0 Thermal Control Registers (rev 05)
3f:05.0 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 1 Control Registers (rev 05)
3f:05.1 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 1 Address Registers (rev 05)
3f:05.2 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 1 Rank Registers (rev 05)
3f:05.3 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 1 Thermal Control Registers (rev 05)
3f:06.0 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 2 Control Registers (rev 05)
3f:06.1 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 2 Address Registers (rev 05)
3f:06.2 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 2 Rank Registers (rev 05)
3f:06.3 Host bridge: Intel Corporation Xeon 5500/Core i7 Integrated Memory Controller Channel 2 Thermal Control Registers (rev 05)

[cpuguy83]

This doesn't really belong here as it's a pipework thing.
Please post to jeptazzo/pipework.