Kernel 4.8.7 crashing

[Ashton Holmes]

I upgraded to 4.8.7 and the system boots and my root partition gets
decrypted but right after that both of my monitors turn off and
looking at syslog from 4.8.6 shows the following:

Nov 12 11:54:24 user-desktop kernel: [   19.853197] ------------[ cut
here ]------------
Nov 12 11:54:24 user-desktop kernel: [   19.853206] WARNING: CPU: 2
PID: 177 at fs/proc/proc_sysctl.c:1607 ops_exit_list.isra.4+0x33/0x60
Nov 12 11:54:24 user-desktop kernel: [   19.853210] Modules linked in:
amdgpu eeepc_wmi i2c_algo_bit asus_wmi drm_kms_helper video rfkill
snd_hda_codec_realtek ttm snd_hda_codec_generic snd_hda_codec_hdmi drm
snd_hda_intel snd_usb_audio sparse_keymap snd_hda_codec mxm_wmi
snd_usbmidi_lib snd_hda_core efi_pstore snd_hwdep snd_rawmidi evdev
snd_seq_device joydev snd_pcm serio_raw pcspkr efivars fam15h_power
k10temp snd_timer snd sp5100_tco i2c_piix4 sg soundcore i2c_core
shpchp tpm_infineon tpm_tis tpm_tis_core tpm wmi button it87 hwmon_vid
autofs4 ext4 crc16 jbd2 mbcache algif_skcipher af_alg dm_crypt dm_mod
hid_generic usbhid hid sr_mod cdrom sd_mod ohci_pci crct10dif_pclmul
crc32_pclmul crc32c_intel aesni_intel aes_x86_64 glue_helper lrw
gf128mul ablk_helper cryptd psmouse ohci_hcd ahci libahci ehci_pci
ehci_hcd libata xhci_pci xhci_hcd e1000e usbcore scsi_mod ptp
usb_common pps_core
Nov 12 11:54:24 user-desktop kernel: [   19.853264] CPU: 2 PID: 177
Comm: kworker/u16:2 Not tainted 4.8.7 #1
Nov 12 11:54:24 user-desktop kernel: [   19.853267] Hardware name: To
be filled by O.E.M. To be filled by O.E.M./CROSSHAIR V FORMULA-Z, BIOS
2201 03/23/2015
Nov 12 11:54:24 user-desktop kernel: [   19.853273] Workqueue: netns cleanup_net
Nov 12 11:54:24 user-desktop kernel: [   19.853276]  0000000000000286
00000000b98071d2 ffffffff81302a8f 0000000000000000
Nov 12 11:54:24 user-desktop kernel: [   19.853281]  0000000000000000
ffffffff81076f54 ffff880814f88040 ffff8808140efdf0
Nov 12 11:54:24 user-desktop kernel: [   19.853285]  ffffffff818f11d8
ffffffff818f11e0 ffff8808140efde0 0000000000000200
Nov 12 11:54:24 user-desktop kernel: [   19.853290] Call Trace:
Nov 12 11:54:24 user-desktop kernel: [   19.853295]
[<ffffffff81302a8f>] ? dump_stack+0x5c/0x7d
Nov 12 11:54:24 user-desktop kernel: [   19.853299]
[<ffffffff81076f54>] ? __warn+0xc4/0xe0
Nov 12 11:54:24 user-desktop kernel: [   19.853302]
[<ffffffff8149e243>] ? ops_exit_list.isra.4+0x33/0x60
Nov 12 11:54:24 user-desktop kernel: [   19.853305]
[<ffffffff8149f230>] ? cleanup_net+0x1b0/0x290
Nov 12 11:54:24 user-desktop kernel: [   19.853309]
[<ffffffff8108fefd>] ? process_one_work+0x14d/0x410
Nov 12 11:54:24 user-desktop kernel: [   19.853312]
[<ffffffff81090cc2>] ? worker_thread+0x62/0x490
Nov 12 11:54:24 user-desktop kernel: [   19.853315]
[<ffffffff81090c60>] ? rescuer_thread+0x340/0x340
Nov 12 11:54:24 user-desktop kernel: [   19.853318]
[<ffffffff81095f3f>] ? kthread+0xdf/0x100
Nov 12 11:54:24 user-desktop kernel: [   19.853322]
[<ffffffff8102b78b>] ? __switch_to+0x2bb/0x710
Nov 12 11:54:24 user-desktop kernel: [   19.853325]
[<ffffffff815a371f>] ? ret_from_fork+0x1f/0x40
Nov 12 11:54:24 user-desktop kernel: [   19.853328]
[<ffffffff81095e60>] ? kthread_park+0x50/0x50
Nov 12 11:54:24 user-desktop kernel: [   19.853331] ---[ end trace
c4840b46b58dbe12 ]---