NMI Watchdog / nisar-raid-1 stack trace on boot

I have a system installed with Ubuntu 16.04 on a software RAID 1. This system is connected to a large number of external drives, all set up in a few different ZFS pools.

When the system boots up, it takes inordinately long to do so, and spams syslog with stack traces that look like the following:

May 23 10:17:08 nisar-raid-1 kernel: [ 36.375165] NMI watchdog: BUG: soft lockup - CPU#12 stuck for 22s! [systemd-udevd:247]
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375176] Modules linked in: ast(+) ixgbe i2c_algo_bit dca ttm drm_kms_helper hid_generic ses syscopyarea vxlan sysfillrect sysimgblt ip6_udp_tunnel enclosure udp_tunnel fb_sys_fops ptp raid1 usbhid pps_core aesni_intel(+) mpt3sas aes_x86_64 lrw hid gf128mul ahci glue_helper raid_class ablk_helper libahci scsi_transport_sas drm mdio cryptd wmi fjes
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375178] CPU: 12 PID: 247 Comm: systemd-udevd Not tainted 4.4.0-21-generic #37-Ubuntu
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375178] Hardware name: X10DRU-i+, BIOS 2.0 12/17/2015
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375179] task: ffff882033edb700 ti: ffff882033f78000 task.ti: ffff882033f78000
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375186] RIP: 0010:[<ffffffff810d7d13>] [<ffffffff810d7d13>] console_unlock+0x313/0x550
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375187] RSP: 0018:ffff882033f7bb48 EFLAGS: 00000246
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375187] RAX: 0000000000000000 RBX: 0000000000000246 RCX: 00000000ffffffff
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375188] RDX: ffff882033f7bac0 RSI: 0000000000000004 RDI: 0000000000000246
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375189] RBP: ffff882033f7bb80 R08: 0000000000000000 R09: 0000000000000000
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375189] R10: ffffffff81a66580 R11: 0000000000000001 R12: 0000000000000064
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375189] R13: 0000000000000004 R14: ffffffff82138738 R15: 0000000000000000
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375190] FS: 00007f3c235718c0(0000) GS:ffff88207fd00000(0000) knlGS:0000000000000000
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375191] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375191] CR2: 00007f3a12236a50 CR3: 0000002033f5b000 CR4: 00000000001406e0
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375192] Stack:
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375193] 01ff882000000000 ffffffff82145270 00000000ffffffff 0000000000000024
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375194] 0000000000000000 0000000000000024 0000000000000006 ffff882033f7bbf0
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375194] ffffffff810d8787 ffffffff82104982 0000000000000024 0000000000000000
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375194] Call Trace:
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375198] [<ffffffff810d8787>] vprintk_emit+0x2d7/0x520
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375200] [<ffffffffc0197000>] ? 0xffffffffc0197000
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375201] [<ffffffff810d8b59>] vprintk_default+0x29/0x40
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375205] [<ffffffff8118bd0e>] printk+0x57/0x73
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375209] [<ffffffff813f8d1e>] ? kasprintf+0x4e/0x70
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375214] [<ffffffffc019703c>] aesni_init+0x3c/0x136 [aesni_intel]
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375217] [<ffffffff81002123>] do_one_initcall+0xb3/0x200
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375221] [<ffffffff811ced81>] ? __vunmap+0x91/0xe0
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375224] [<ffffffff811eaeb3>] ? kmem_cache_alloc_trace+0x183/0x1f0
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375225] [<ffffffff811ebcaa>] ? kfree+0x13a/0x150
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375226] [<ffffffff8118c163>] do_init_module+0x5f/0x1cf
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375229] [<ffffffff81109df7>] load_module+0x1667/0x1c00
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375231] [<ffffffff811063a0>] ? __symbol_put+0x60/0x60
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375234] [<ffffffff812126b0>] ? kernel_read+0x50/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375235] [<ffffffff8110a5d4>] SYSC_finit_module+0xb4/0xe0
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375236] [<ffffffff8110a61e>] SyS_finit_module+0xe/0x10
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375241] [<ffffffff818244f2>] entry_SYSCALL_64_fastpath+0x16/0x71
May 23 10:17:08 nisar-raid-1 kernel: [ 36.375249] Code: 48 8b 7d d0 83 e0 1f 89 05 33 d5 06 01 c6 07 00 0f 1f 40 00 48 c7 c6 40 25 10 82 44 89 ef 4c 89 e1 e8 f2 f5 ff ff 48 89 df 57 9d <0f> 1f 44 00 00 8b 45 c8 85 c0 0f 84 6e fd ff ff e8 e8 88 74 00

And then they continue.

Here is a larger excerpt:

May 23 10:17:08 nisar-raid-1 kernel: [ 288.388809] NMI watchdog: BUG: soft lockup - CPU#12 stuck for 22s! [systemd-udevd:247]
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388815] Modules linked in: ast(+) ixgbe i2c_algo_bit dca ttm drm_kms_helper hid_generic ses syscopyarea vxlan sysfillrect sysimgblt ip6_udp_tunnel enclosure udp_tunnel fb_sys_fops ptp raid1 usbhid pps_core aesni_intel(+) mpt3sas aes_x86_64 lrw hid gf128mul ahci glue_helper raid_class ablk_helper libahci scsi_transport_sas drm mdio cryptd wmi fjes
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388816] CPU: 12 PID: 247 Comm: systemd-udevd Tainted: G L 4.4.0-21-generic #37-Ubuntu
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388817] Hardware name: X10DRU-i+, BIOS 2.0 12/17/2015
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388817] task: ffff882033edb700 ti: ffff882033f78000 task.ti: ffff882033f78000
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388819] RIP: 0010:[<ffffffff810d7d13>] [<ffffffff810d7d13>] console_unlock+0x313/0x550
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388820] RSP: 0018:ffff882033f7bb48 EFLAGS: 00000246
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388820] RAX: 0000000000000000 RBX: 0000000000000246 RCX: 00000000ffffffff
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388820] RDX: ffff882033f7bac0 RSI: 0000000000000004 RDI: 0000000000000246
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388821] RBP: ffff882033f7bb80 R08: 0000000000000000 R09: 0000000000000000
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388821] R10: ffffffff81a66580 R11: 0000000000000001 R12: 0000000000000044
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388821] R13: 0000000000000004 R14: ffffffff8213c208 R15: 0000000000000000
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388822] FS: 00007f3c235718c0(0000) GS:ffff88207fd00000(0000) knlGS:0000000000000000
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388822] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388823] CR2: 00007f3a12236a50 CR3: 0000002033f5b000 CR4: 00000000001406e0
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388823] Stack:
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388824] 01ff882000000000 ffffffff82145270 00000000ffffffff 0000000000000024
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388825] 0000000000000000 0000000000000024 0000000000000006 ffff882033f7bbf0
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388825] ffffffff810d8787 ffffffff82104982 0000000000000024 0000000000000000
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388826] Call Trace:
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388827] [<ffffffff810d8787>] vprintk_emit+0x2d7/0x520
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388828] [<ffffffffc0197000>] ? 0xffffffffc0197000
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388829] [<ffffffff810d8b59>] vprintk_default+0x29/0x40
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388830] [<ffffffff8118bd0e>] printk+0x57/0x73
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388832] [<ffffffff813f8d1e>] ? kasprintf+0x4e/0x70
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388835] [<ffffffffc019703c>] aesni_init+0x3c/0x136 [aesni_intel]
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388836] [<ffffffff81002123>] do_one_initcall+0xb3/0x200
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388837] [<ffffffff811ced81>] ? __vunmap+0x91/0xe0
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388838] [<ffffffff811eaeb3>] ? kmem_cache_alloc_trace+0x183/0x1f0
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388839] [<ffffffff811ebcaa>] ? kfree+0x13a/0x150
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388840] [<ffffffff8118c163>] do_init_module+0x5f/0x1cf
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388841] [<ffffffff81109df7>] load_module+0x1667/0x1c00
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388842] [<ffffffff811063a0>] ? __symbol_put+0x60/0x60
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388843] [<ffffffff812126b0>] ? kernel_read+0x50/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388844] [<ffffffff8110a5d4>] SYSC_finit_module+0xb4/0xe0
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388845] [<ffffffff8110a61e>] SyS_finit_module+0xe/0x10
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388847] [<ffffffff818244f2>] entry_SYSCALL_64_fastpath+0x16/0x71
May 23 10:17:08 nisar-raid-1 kernel: [ 288.388855] Code: 48 8b 7d d0 83 e0 1f 89 05 33 d5 06 01 c6 07 00 0f 1f 40 00 48 c7 c6 40 25 10 82 44 89 ef 4c 89 e1 e8 f2 f5 ff ff 48 89 df 57 9d <0f> 1f 44 00 00 8b 45 c8 85 c0 0f 84 6e fd ff ff e8 e8 88 74 00
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525451] AES CTR mode by8 optimization enabled
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525528] Console: switching to colour dummy device 80x25
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525577] ------------[ cut here ]------------
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525584] WARNING: CPU: 2 PID: 247 at /build/linux-Ay7j_C/linux-4.4.0/crypto/algapi.c:349 crypto_wait_for_test+0x60/0x80()
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525588] Modules linked in: ast(+) ixgbe i2c_algo_bit dca ttm drm_kms_helper hid_generic ses syscopyarea vxlan sysfillrect sysimgblt ip6_udp_tunnel enclosure udp_tunnel fb_sys_fops ptp raid1 usbhid pps_core aesni_intel(+) mpt3sas aes_x86_64 lrw hid gf128mul ahci glue_helper raid_class ablk_helper libahci scsi_transport_sas drm mdio cryptd wmi fjes
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525610] CPU: 2 PID: 247 Comm: systemd-udevd Tainted: G L 4.4.0-21-generic #37-Ubuntu
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525614] Hardware name: X10DRU-i+, BIOS 2.0 12/17/2015
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525617] 0000000000000286 000000009f325126 ffff882033f7bbb0 ffffffff813e93c3
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525621] 0000000000000000 ffffffff81cedd08 ffff882033f7bbe8 ffffffff81080f62
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525625] ffff88202e1c6600 ffff88202e1c6600 ffffffffc037b3a0 ffffffffc0197000
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525629] Call Trace:
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525637] [<ffffffff813e93c3>] dump_stack+0x63/0x90
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525641] [<ffffffff81080f62>] warn_slowpath_common+0x82/0xc0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525642] [<ffffffffc0197000>] ? 0xffffffffc0197000
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525644] [<ffffffff810810aa>] warn_slowpath_null+0x1a/0x20
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525644] [<ffffffff8139e0d0>] crypto_wait_for_test+0x60/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525646] [<ffffffff8139e3d5>] crypto_register_alg+0x55/0x70
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525647] [<ffffffff8139e42a>] crypto_register_algs+0x3a/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525647] [<ffffffffc0197000>] ? 0xffffffffc0197000
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525651] [<ffffffffc01970f7>] aesni_init+0xf7/0x136 [aesni_intel]
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525653] [<ffffffff81002123>] do_one_initcall+0xb3/0x200
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525655] [<ffffffff811ced81>] ? __vunmap+0x91/0xe0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525657] [<ffffffff811eaeb3>] ? kmem_cache_alloc_trace+0x183/0x1f0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525658] [<ffffffff811ebcaa>] ? kfree+0x13a/0x150
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525661] [<ffffffff8118c163>] do_init_module+0x5f/0x1cf
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525662] [<ffffffff81109df7>] load_module+0x1667/0x1c00
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525663] [<ffffffff811063a0>] ? __symbol_put+0x60/0x60
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525665] [<ffffffff812126b0>] ? kernel_read+0x50/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525666] [<ffffffff8110a5d4>] SYSC_finit_module+0xb4/0xe0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525668] [<ffffffff8110a61e>] SyS_finit_module+0xe/0x10
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525670] [<ffffffff818244f2>] entry_SYSCALL_64_fastpath+0x16/0x71
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525671] ---[ end trace fe67c61bbcd00d24 ]---
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525704] fbcon: astdrmfb (fb0) is primary device
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525823] ------------[ cut here ]------------
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525827] WARNING: CPU: 4 PID: 247 at /build/linux-Ay7j_C/linux-4.4.0/crypto/algapi.c:349 crypto_wait_for_test+0x60/0x80()
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525835] Modules linked in: ast(+) ixgbe i2c_algo_bit dca ttm drm_kms_helper hid_generic ses syscopyarea vxlan sysfillrect sysimgblt ip6_udp_tunnel enclosure udp_tunnel fb_sys_fops ptp raid1 usbhid pps_core aesni_intel(+) mpt3sas aes_x86_64 lrw hid gf128mul ahci glue_helper raid_class ablk_helper libahci scsi_transport_sas drm mdio cryptd wmi fjes
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525836] CPU: 4 PID: 247 Comm: systemd-udevd Tainted: G W L 4.4.0-21-generic #37-Ubuntu
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525836] Hardware name: X10DRU-i+, BIOS 2.0 12/17/2015
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525838] 0000000000000286 000000009f325126 ffff882033f7bbb0 ffffffff813e93c3
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525839] 0000000000000000 ffffffff81cedd08 ffff882033f7bbe8 ffffffff81080f62
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525839] ffff881033871e00 ffff881033871e00 ffffffffc037b3a0 0000000000000000
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525840] Call Trace:
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525843] [<ffffffff813e93c3>] dump_stack+0x63/0x90
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525846] [<ffffffff81080f62>] warn_slowpath_common+0x82/0xc0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525848] [<ffffffff810810aa>] warn_slowpath_null+0x1a/0x20
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525848] [<ffffffff8139e0d0>] crypto_wait_for_test+0x60/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525849] [<ffffffff8139e3d5>] crypto_register_alg+0x55/0x70
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525850] [<ffffffff8139e42a>] crypto_register_algs+0x3a/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525851] [<ffffffffc0197000>] ? 0xffffffffc0197000
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525854] [<ffffffffc01970f7>] aesni_init+0xf7/0x136 [aesni_intel]
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525855] [<ffffffff81002123>] do_one_initcall+0xb3/0x200
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525857] [<ffffffff811ced81>] ? __vunmap+0x91/0xe0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525858] [<ffffffff811eaeb3>] ? kmem_cache_alloc_trace+0x183/0x1f0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525859] [<ffffffff811ebcaa>] ? kfree+0x13a/0x150
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525860] [<ffffffff8118c163>] do_init_module+0x5f/0x1cf
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525862] [<ffffffff81109df7>] load_module+0x1667/0x1c00
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525862] [<ffffffff811063a0>] ? __symbol_put+0x60/0x60
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525864] [<ffffffff812126b0>] ? kernel_read+0x50/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525865] [<ffffffff8110a5d4>] SYSC_finit_module+0xb4/0xe0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525866] [<ffffffff8110a61e>] SyS_finit_module+0xe/0x10
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525867] [<ffffffff818244f2>] entry_SYSCALL_64_fastpath+0x16/0x71
May 23 10:17:08 nisar-raid-1 kernel: [ 308.525868] ---[ end trace fe67c61bbcd00d25 ]---
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526748] ------------[ cut here ]------------
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526750] WARNING: CPU: 4 PID: 247 at /build/linux-Ay7j_C/linux-4.4.0/crypto/algapi.c:349 crypto_wait_for_test+0x60/0x80()
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526757] Modules linked in: ast(+) ixgbe i2c_algo_bit dca ttm drm_kms_helper hid_generic ses syscopyarea vxlan sysfillrect sysimgblt ip6_udp_tunnel enclosure udp_tunnel fb_sys_fops ptp raid1 usbhid pps_core aesni_intel(+) mpt3sas aes_x86_64 lrw hid gf128mul ahci glue_helper raid_class ablk_helper libahci scsi_transport_sas drm mdio cryptd wmi fjes
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526759] CPU: 4 PID: 247 Comm: systemd-udevd Tainted: G W L 4.4.0-21-generic #37-Ubuntu
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526759] Hardware name: X10DRU-i+, BIOS 2.0 12/17/2015
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526760] 0000000000000286 000000009f325126 ffff882033f7bbb0 ffffffff813e93c3
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526761] 0000000000000000 ffffffff81cedd08 ffff882033f7bbe8 ffffffff81080f62
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526762] ffff88202e1c6800 ffff88202e1c6800 ffffffffc037b3a0 0000000000000000
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526762] Call Trace:
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526764] [<ffffffff813e93c3>] dump_stack+0x63/0x90
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526765] [<ffffffff81080f62>] warn_slowpath_common+0x82/0xc0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526767] [<ffffffff810810aa>] warn_slowpath_null+0x1a/0x20
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526767] [<ffffffff8139e0d0>] crypto_wait_for_test+0x60/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526768] [<ffffffff8139e3d5>] crypto_register_alg+0x55/0x70
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526769] [<ffffffff8139e42a>] crypto_register_algs+0x3a/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526770] [<ffffffffc0197000>] ? 0xffffffffc0197000
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526773] [<ffffffffc01970f7>] aesni_init+0xf7/0x136 [aesni_intel]
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526774] [<ffffffff81002123>] do_one_initcall+0xb3/0x200
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526775] [<ffffffff811ced81>] ? __vunmap+0x91/0xe0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526777] [<ffffffff811eaeb3>] ? kmem_cache_alloc_trace+0x183/0x1f0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526777] [<ffffffff811ebcaa>] ? kfree+0x13a/0x150
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526779] [<ffffffff8118c163>] do_init_module+0x5f/0x1cf
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526780] [<ffffffff81109df7>] load_module+0x1667/0x1c00
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526781] [<ffffffff811063a0>] ? __symbol_put+0x60/0x60
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526782] [<ffffffff812126b0>] ? kernel_read+0x50/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526783] [<ffffffff8110a5d4>] SYSC_finit_module+0xb4/0xe0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526784] [<ffffffff8110a61e>] SyS_finit_module+0xe/0x10
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526786] [<ffffffff818244f2>] entry_SYSCALL_64_fastpath+0x16/0x71
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526787] ---[ end trace fe67c61bbcd00d26 ]---
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526807] ------------[ cut here ]------------
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526808] WARNING: CPU: 4 PID: 247 at /build/linux-Ay7j_C/linux-4.4.0/crypto/algapi.c:349 crypto_wait_for_test+0x60/0x80()
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526814] Modules linked in: ast(+) ixgbe i2c_algo_bit dca ttm drm_kms_helper hid_generic ses syscopyarea vxlan sysfillrect sysimgblt ip6_udp_tunnel enclosure udp_tunnel fb_sys_fops ptp raid1 usbhid pps_core aesni_intel(+) mpt3sas aes_x86_64 lrw hid gf128mul ahci glue_helper raid_class ablk_helper libahci scsi_transport_sas drm mdio cryptd wmi fjes
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526814] CPU: 4 PID: 247 Comm: systemd-udevd Tainted: G W L 4.4.0-21-generic #37-Ubuntu
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526815] Hardware name: X10DRU-i+, BIOS 2.0 12/17/2015
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526816] 0000000000000286 000000009f325126 ffff882033f7bbb0 ffffffff813e93c3
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526817] 0000000000000000 ffffffff81cedd08 ffff882033f7bbe8 ffffffff81080f62
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526817] ffff88202e1c6800 ffff88202e1c6800 ffffffffc037b3a0 0000000000000000
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526817] Call Trace:
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526819] [<ffffffff813e93c3>] dump_stack+0x63/0x90
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526820] [<ffffffff81080f62>] warn_slowpath_common+0x82/0xc0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526821] [<ffffffff810810aa>] warn_slowpath_null+0x1a/0x20
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526821] [<ffffffff8139e0d0>] crypto_wait_for_test+0x60/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526822] [<ffffffff8139e3d5>] crypto_register_alg+0x55/0x70
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526823] [<ffffffff8139e42a>] crypto_register_algs+0x3a/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526823] [<ffffffffc0197000>] ? 0xffffffffc0197000
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526826] [<ffffffffc01970f7>] aesni_init+0xf7/0x136 [aesni_intel]
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526827] [<ffffffff81002123>] do_one_initcall+0xb3/0x200
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526828] [<ffffffff811ced81>] ? __vunmap+0x91/0xe0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526829] [<ffffffff811eaeb3>] ? kmem_cache_alloc_trace+0x183/0x1f0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526830] [<ffffffff811ebcaa>] ? kfree+0x13a/0x150
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526831] [<ffffffff8118c163>] do_init_module+0x5f/0x1cf
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526832] [<ffffffff81109df7>] load_module+0x1667/0x1c00
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526833] [<ffffffff811063a0>] ? __symbol_put+0x60/0x60
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526834] [<ffffffff812126b0>] ? kernel_read+0x50/0x80
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526835] [<ffffffff8110a5d4>] SYSC_finit_module+0xb4/0xe0
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526836] [<ffffffff8110a61e>] SyS_finit_module+0xe/0x10
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526838] [<ffffffff818244f2>] entry_SYSCALL_64_fastpath+0x16/0x71
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526838] ---[ end trace fe67c61bbcd00d27 ]---
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526851] ------------[ cut here ]------------
May 23 10:17:08 nisar-raid-1 kernel: [ 308.526852] WARNING: CPU: 4 PID: 247 at /build/linux-Ay7j_C/linux-4.4.0/crypto/algapi.c:349 crypto_wait_for_test+0x60/0x80()

Can anyone tell me what's going on?