[Swan-dev] annoying kernel message on test virtual machines

[D. Hugh Redelmeier]

Whenever I run libreswan on the testing virtual machines, I get this
in the kernel log.

Anyone know how to fix this?

The VM system is Fedor 19.  The kernel is:
Linux version 3.12.11-201.fc19.x86_64 (mockbuild at bkernel01.phx2.fedoraproject.org) (gcc version 4.8.2 20131212 (Red Hat 4.8.2-7) (GCC) ) #1 SMP Fri Feb 14 19:08:33 UTC 2014


[   98.495564] ------------[ cut here ]------------
[   98.496025] WARNING: CPU: 0 PID: 2051 at kernel/smp.c:371 smp_call_function_many+0xb5/0x330()
[   98.496025] Modules linked in: crypto_null ipsec(OF) salsa20_x86_64 camellia_generic camellia_x86_64 cast6_generic cast5_generic cast_common deflate cts gcm ccm serpent_sse2_x86_64 serpent_generic blowfish_generic blowfish_x86_64 blowfish_common twofish_generic twofish_x86_64_3way twofish_x86_64 twofish_common xcbc sha512_generic des_generic tpm_rng tpm tpm_bios timeriomem_rng ip6table_filter ip6_tables xt_LOG 9p fscache ppdev microcode qxl serio_raw parport_pc ttm drm_kms_helper virtio_console parport virtio_net virtio_balloon drm i2c_piix4 i2c_core virtio_rng 9pnet_virtio 9pnet virtio_blk virtio_pci virtio_ring virtio ata_generic pata_acpi
[   98.496025] CPU: 0 PID: 2051 Comm: pluto Tainted: GF          O 3.12.11-201.fc19.x86_64 #1
[   98.496025] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   98.496025]  0000000000000009 ffff880016dcbb70 ffffffff816676a5 0000000000000000
[   98.496025]  ffff880016dcbba8 ffffffff8106903d 0000000000000000 ffffffff81cfa1e0
[   98.496025]  0000000000000000 0000000000000000 0000000000000000 ffff880016dcbbb8
[   98.496025] Call Trace:
[   98.496025]  [<ffffffff816676a5>] dump_stack+0x45/0x56
[   98.496025]  [<ffffffff8106903d>] warn_slowpath_common+0x7d/0xa0
[   98.496025]  [<ffffffff8106911a>] warn_slowpath_null+0x1a/0x20
[   98.496025]  [<ffffffff810d0bb5>] smp_call_function_many+0xb5/0x330
[   98.496025]  [<ffffffff81018c10>] ? setup_data_read+0x90/0x90
[   98.496025]  [<ffffffff81056258>] ? __native_set_fixmap+0x28/0x40
[   98.496025]  [<ffffffff815d084c>] ? udp_queue_rcv_skb+0xac/0x3a0
[   98.496025]  [<ffffffff81018c10>] ? setup_data_read+0x90/0x90
[   98.496025]  [<ffffffff815d084d>] ? udp_queue_rcv_skb+0xad/0x3a0
[   98.496025]  [<ffffffff810d106d>] on_each_cpu+0x2d/0x60
[   98.496025]  [<ffffffff815d084c>] ? udp_queue_rcv_skb+0xac/0x3a0
[   98.496025]  [<ffffffff810193bb>] text_poke_bp+0x5b/0xc0
[   98.496025]  [<ffffffff815d084c>] ? udp_queue_rcv_skb+0xac/0x3a0
[   98.496025]  [<ffffffff81016942>] __jump_label_transform.isra.0+0x112/0x140
[   98.496025]  [<ffffffff810169a7>] arch_jump_label_transform+0x37/0x50
[   98.496025]  [<ffffffff81140c0f>] __jump_label_update+0x5f/0x80
[   98.496025]  [<ffffffff81140ccd>] jump_label_update+0x9d/0xb0
[   98.496025]  [<ffffffff81140e6d>] static_key_slow_inc+0x6d/0x90
[   98.496025]  [<ffffffff815cdb20>] udp_encap_enable+0x20/0x30
[   98.496025]  [<ffffffffa0234e1a>] ipsec_tunnel_ioctl+0x19a/0x750 [ipsec]
[   98.496025]  [<ffffffff8157ec73>] dev_ifsioc+0x303/0x350
[   98.496025]  [<ffffffff81567839>] ? dev_get_by_name_rcu+0x69/0x90
[   98.496025]  [<ffffffff8157f12d>] dev_ioctl+0x46d/0x560
[   98.496025]  [<ffffffff81550102>] sock_ioctl+0x132/0x2c0
[   98.496025]  [<ffffffff811c113d>] do_vfs_ioctl+0x2dd/0x4b0
[   98.496025]  [<ffffffff811c1391>] SyS_ioctl+0x81/0xa0
[   98.496025]  [<ffffffff81676669>] system_call_fastpath+0x16/0x1b
[   98.496025] ---[ end trace 8ca7c4d717e3c63e ]---