constant machine crashes

Since I upgraded to Zesty, I have experienced constant soft crashes on my machine. Symptoms are that I can still move the mouse cursor around on my X display, but none of the windows respond to button or key presses. The mouse cursor will even trigger edge-flips when bumping up against the edge of the screen, but the key bindings to do the same do not work. Sometimes (more often not) I can ssh into the machine to reboot, but most attempts just time out after the "connection establised" message. If I attempt to switch to a text console (eg. ctrl-alt-F1), the machine appears to lock up completely (even the mouse stops responding).

Obviously, I can't collect a log during the problem. I have to reboot by holding down the power button! But after that, this is what I typically find in the kern.log:

May 25 01:59:41 inanna kernel: [33992.896206] ------------[ cut here ]------------
May 25 01:59:41 inanna kernel: [33992.896231] kernel BUG at /build/linux-lz1RHE/linux-4.10.0/include/linux/swapops.h:129!
May 25 01:59:41 inanna kernel: [33992.896255] invalid opcode: 0000 [#1] SMP
May 25 01:59:41 inanna kernel: [33992.896268] Modules linked in: xfrm_user xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 af_key xfrm_algo ccm bbswitch(OE) msr bluetooth binfmt_misc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media hp_wmi sparse_keymap mxm_wmi snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm intel_rapl x86_pkg_temp_thermal snd_seq_midi snd_seq_midi_event snd_rawmidi arc4 snd_seq kvm irqbypass rt2800pci rt2800mmio rt2800lib crct10dif_pclmul crc32_pclmul ghash_clmulni_intel rt2x00pci rt2x00mmio pcbc aesni_intel snd_seq_device snd_timer snd aes_x86_64 nvidia_uvm(POE) soundcore rt2x00lib mac80211 cfg80211 crypto_simd glue_helper mei_me eeprom_93cx6 cryptd rtsx_pci_ms intel_cstate memstick intel_rapl_perf mei
May 25 01:59:41 inanna kernel: [33992.896477] shpchp lpc_ich hp_accel input_leds joydev intel_smartconnect lis3lv02d input_polldev mac_hid wmi serio_raw coretemp ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid hid i915 nvidia_drm(POE) nvidia_modeset(POE) rtsx_pci_sdmmc nvidia(POE) i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops psmouse ahci r8169 drm libahci rtsx_pci mii fjes video [last unloaded: parport_pc]
May 25 01:59:41 inanna kernel: [33992.896591] CPU: 3 PID: 11909 Comm: JS Helper Tainted: P OE 4.10.0-21-generic #23-Ubuntu
May 25 01:59:41 inanna kernel: [33992.896617] Hardware name: Hewlett-Packard HP Pavilion dv7 Notebook PC/181D, BIOS F.0A 05/02/2012
May 25 01:59:41 inanna kernel: [33992.896643] task: ffff8e2861381680 task.stack: ffffa68a429d4000
May 25 01:59:41 inanna kernel: [33992.896663] RIP: 0010:__migration_entry_wait+0x16a/0x180
May 25 01:59:41 inanna kernel: [33992.896680] RSP: 0000:ffffa68a429d7d68 EFLAGS: 00010246
May 25 01:59:41 inanna kernel: [33992.896697] RAX: 000fffffc0048078 RBX: ffffd36204acf8f0 RCX: ffffd36204acf8f0
May 25 01:59:41 inanna kernel: [33992.896718] RDX: 0000000000000001 RSI: ffff8e282b3e3800 RDI: ffffd36200324000
May 25 01:59:41 inanna kernel: [33992.896739] RBP: ffffa68a429d7d80 R08: ffff8e29515dc5c0 R09: ffff8e29515dc5c0
May 25 01:59:41 inanna kernel: [33992.896760] R10: 00007f63fd3000c8 R11: 0000000000000206 R12: ffffd36200324000
May 25 01:59:41 inanna kernel: [33992.896781] R13: 3e0000000000c900 R14: ffffa68a429d7e30 R15: ffff8e28e4b25960
May 25 01:59:41 inanna kernel: [33992.896802] FS: 00007f63e36f8700(0000) GS:ffff8e295f2c0000(0000) knlGS:0000000000000000
May 25 01:59:41 inanna kernel: [33992.896826] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
May 25 01:59:41 inanna kernel: [33992.896843] CR2: 00007f63d5f00018 CR3: 0000000111f6c000 CR4: 00000000001406e0
May 25 01:59:41 inanna kernel: [33992.896864] Call Trace:
May 25 01:59:41 inanna kernel: [33992.896875] migration_entry_wait+0x74/0x80
May 25 01:59:41 inanna kernel: [33992.896890] do_swap_page+0x5b3/0x770
May 25 01:59:41 inanna kernel: [33992.896903] handle_mm_fault+0x873/0x1360
May 25 01:59:41 inanna kernel: [33992.896918] __do_page_fault+0x23e/0x4e0
May 25 01:59:41 inanna kernel: [33992.896932] do_page_fault+0x22/0x30
May 25 01:59:41 inanna kernel: [33992.896945] page_fault+0x28/0x30
May 25 01:59:41 inanna kernel: [33992.896956] RIP: 0033:0x55e96320f2b4
May 25 01:59:41 inanna kernel: [33992.896968] RSP: 002b:00007f63e36f7c40 EFLAGS: 00010207
May 25 01:59:41 inanna kernel: [33992.896985] RAX: 0000000000000000 RBX: 00007f63fd300040 RCX: 00007f63fd5d2137
May 25 01:59:41 inanna kernel: [33992.897005] RDX: 0000000000000008 RSI: 0000000000002000 RDI: 00007f63d5f6d000
May 25 01:59:41 inanna kernel: [33992.897027] RBP: 00007f63d5f00000 R08: 00007f63fd3000c8 R09: 0000000000000000
May 25 01:59:41 inanna kernel: [33992.897048] R10: 00007f63fd3000c8 R11: 0000000000000206 R12: 0000000000000080
May 25 01:59:41 inanna kernel: [33992.897073] R13: 00007f63fd3000c8 R14: 000000000000006c R15: 0000000000000002
May 25 01:59:41 inanna kernel: [33992.897099] Code: ff ff ff 4c 89 e7 e8 b6 a2 f8 ff e9 3c ff ff ff 85 d2 0f 84 2a ff ff ff 8d 4a 01 89 d0 f0 41 0f b1 4d 00 39 d0 74 81 89 c2 eb e5 <0f> 0b 4c 89 e7 e8 2c fb f9 ff eb b8 4c 8d 60 ff 4c 8d 68 1b eb
May 25 01:59:41 inanna kernel: [33992.897178] RIP: __migration_entry_wait+0x16a/0x180 RSP: ffffa68a429d7d68
May 25 01:59:41 inanna kernel: [33992.902197] ---[ end trace 5e41767944638002 ]---
May 25 01:59:42 inanna kernel: [33993.185987] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
May 25 01:59:42 inanna kernel: [33993.697993] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
May 25 01:59:43 inanna kernel: [33994.550026] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
May 25 01:59:43 inanna kernel: [33995.089990] ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 2 failed to flush
May 25 02:00:06 inanna kernel: [34017.271665] NMI watchdog: BUG: soft lockup - CPU#7 stuck for 23s! [JS Helper:11911]
May 25 02:00:06 inanna kernel: [34017.271668] Modules linked in: xfrm_user xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 af_key xfrm_algo ccm bbswitch(OE) msr bluetooth binfmt_misc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media hp_wmi sparse_keymap mxm_wmi snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm intel_rapl x86_pkg_temp_thermal snd_seq_midi snd_seq_midi_event snd_rawmidi arc4 snd_seq kvm irqbypass rt2800pci rt2800mmio rt2800lib crct10dif_pclmul crc32_pclmul ghash_clmulni_intel rt2x00pci rt2x00mmio pcbc aesni_intel snd_seq_device snd_timer snd aes_x86_64 nvidia_uvm(POE) soundcore rt2x00lib mac80211 cfg80211 crypto_simd glue_helper mei_me eeprom_93cx6 cryptd rtsx_pci_ms intel_cstate memstick intel_rapl_perf mei
May 25 02:00:06 inanna kernel: [34017.271706] shpchp lpc_ich hp_accel input_leds joydev intel_smartconnect lis3lv02d input_polldev mac_hid wmi serio_raw coretemp ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid hid i915 nvidia_drm(POE) nvidia_modeset(POE) rtsx_pci_sdmmc nvidia(POE) i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops psmouse ahci r8169 drm libahci rtsx_pci mii fjes video [last unloaded: parport_pc]
May 25 02:00:06 inanna kernel: [34017.271723] CPU: 7 PID: 11911 Comm: JS Helper Tainted: P D OE 4.10.0-21-generic #23-Ubuntu
May 25 02:00:06 inanna kernel: [34017.271724] Hardware name: Hewlett-Packard HP Pavilion dv7 Notebook PC/181D, BIOS F.0A 05/02/2012
May 25 02:00:06 inanna kernel: [34017.271725] task: ffff8e2882589680 task.stack: ffffa68a42d4c000
May 25 02:00:06 inanna kernel: [34017.271729] RIP: 0010:native_queued_spin_lock_slowpath+0x17b/0x1a0
May 25 02:00:06 inanna kernel: [34017.271730] RSP: 0000:ffffa68a42d4fd48 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10
May 25 02:00:06 inanna kernel: [34017.271731] RAX: 0000000000000101 RBX: ffffd36204acf8f0 RCX: 0000000000000001
May 25 02:00:06 inanna kernel: [34017.271732] RDX: 0000000000000101 RSI: 0000000000000001 RDI: ffffd36204acf8f0
May 25 02:00:06 inanna kernel: [34017.271733] RBP: ffffa68a42d4fd48 R08: 0000000000000101 R09: ffff8e29515dc5c0
May 25 02:00:06 inanna kernel: [34017.271734] R10: 000f95cf9b565e00 R11: 0000000000000001 R12: ffff8e282b3e37f8
May 25 02:00:06 inanna kernel: [34017.271735] R13: 3e0000000000c8ff R14: ffffa68a42d4fe30 R15: ffff8e28e4b25960
May 25 02:00:06 inanna kernel: [34017.271736] FS: 00007f63e26f6700(0000) GS:ffff8e295f3c0000(0000) knlGS:0000000000000000
May 25 02:00:06 inanna kernel: [34017.271737] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
May 25 02:00:06 inanna kernel: [34017.271738] CR2: 00007f63d5efffe8 CR3: 0000000111f6c000 CR4: 00000000001406e0
May 25 02:00:06 inanna kernel: [34017.271739] Call Trace:
May 25 02:00:06 inanna kernel: [34017.271743] _raw_spin_lock+0x20/0x30
May 25 02:00:06 inanna kernel: [34017.271744] __migration_entry_wait+0x1c/0x180
May 25 02:00:06 inanna kernel: [34017.271745] migration_entry_wait+0x74/0x80
May 25 02:00:06 inanna kernel: [34017.271748] do_swap_page+0x5b3/0x770
May 25 02:00:06 inanna kernel: [34017.271750] ? futex_wake+0x90/0x170
May 25 02:00:06 inanna kernel: [34017.271751] handle_mm_fault+0x873/0x1360
May 25 02:00:06 inanna kernel: [34017.271754] __do_page_fault+0x23e/0x4e0
May 25 02:00:06 inanna kernel: [34017.271756] do_page_fault+0x22/0x30
May 25 02:00:06 inanna kernel: [34017.271757] page_fault+0x28/0x30
May 25 02:00:06 inanna kernel: [34017.271758] RIP: 0033:0x7f63efbd1a96
May 25 02:00:06 inanna kernel: [34017.271759] RSP: 002b:00007f63e26f5d70 EFLAGS: 00010206
May 25 02:00:06 inanna kernel: [34017.271760] RAX: 00007f63d5efffe8 RBX: 00007f63d5e00218 RCX: 0000000000013f8d
May 25 02:00:06 inanna kernel: [34017.271761] RDX: 00000000000004fe RSI: 00007f63e26f5de8 RDI: 00007f63e26f5da0
May 25 02:00:06 inanna kernel: [34017.271762] RBP: 00007f63d5e00000 R08: 0000000000000000 R09: 000000000008dc63
May 25 02:00:06 inanna kernel: [34017.271763] R10: 000f95cf9b565e00 R11: 0000000000000001 R12: 00007f63e26f5da0
May 25 02:00:06 inanna kernel: [34017.271764] R13: 0000000000000001 R14: 00007f63e0183c20 R15: 00007f6395f4c228
May 25 02:00:06 inanna kernel: [34017.271764] Code: c0 74 e6 4d 85 c9 c6 07 01 74 30 41 c7 41 08 01 00 00 00 e9 52 ff ff ff 83 fa 01 0f 84 b0 fe ff ff 8b 07 84 c0 74 08 f3 90 8b 07 <84> c0 75 f8 b8 01 00 00 00 66 89 07 5d c3 f3 90 4c 8b 09 4d 85
May 25 02:00:34 inanna kernel: [34045.271893] NMI watchdog: BUG: soft lockup - CPU#7 stuck for 23s! [JS Helper:11911]
May 25 02:00:34 inanna kernel: [34045.271896] Modules linked in: xfrm_user xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 af_key xfrm_algo ccm bbswitch(OE) msr bluetooth binfmt_misc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media hp_wmi sparse_keymap mxm_wmi snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm intel_rapl x86_pkg_temp_thermal snd_seq_midi snd_seq_midi_event snd_rawmidi arc4 snd_seq kvm irqbypass rt2800pci rt2800mmio rt2800lib crct10dif_pclmul crc32_pclmul ghash_clmulni_intel rt2x00pci rt2x00mmio pcbc aesni_intel snd_seq_device snd_timer snd aes_x86_64 nvidia_uvm(POE) soundcore rt2x00lib mac80211 cfg80211 crypto_simd glue_helper mei_me eeprom_93cx6 cryptd rtsx_pci_ms intel_cstate memstick intel_rapl_perf mei
May 25 02:00:34 inanna kernel: [34045.271934] shpchp lpc_ich hp_accel input_leds joydev intel_smartconnect lis3lv02d input_polldev mac_hid wmi serio_raw coretemp ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid hid i915 nvidia_drm(POE) nvidia_modeset(POE) rtsx_pci_sdmmc nvidia(POE) i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops psmouse ahci r8169 drm libahci rtsx_pci mii fjes video [last unloaded: parport_pc]
May 25 02:00:34 inanna kernel: [34045.271951] CPU: 7 PID: 11911 Comm: JS Helper Tainted: P D OEL 4.10.0-21-generic #23-Ubuntu
May 25 02:00:34 inanna kernel: [34045.271952] Hardware name: Hewlett-Packard HP Pavilion dv7 Notebook PC/181D, BIOS F.0A 05/02/2012
May 25 02:00:34 inanna kernel: [34045.271954] task: ffff8e2882589680 task.stack: ffffa68a42d4c000
May 25 02:00:34 inanna kernel: [34045.271957] RIP: 0010:native_queued_spin_lock_slowpath+0x17b/0x1a0
May 25 02:00:34 inanna kernel: [34045.271958] RSP: 0000:ffffa68a42d4fd48 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10
May 25 02:00:34 inanna kernel: [34045.271959] RAX: 0000000000000101 RBX: ffffd36204acf8f0 RCX: 0000000000000001
May 25 02:00:34 inanna kernel: [34045.271960] RDX: 0000000000000101 RSI: 0000000000000001 RDI: ffffd36204acf8f0
May 25 02:00:34 inanna kernel: [34045.271961] RBP: ffffa68a42d4fd48 R08: 0000000000000101 R09: ffff8e29515dc5c0
May 25 02:00:34 inanna kernel: [34045.271962] R10: 000f95cf9b565e00 R11: 0000000000000001 R12: ffff8e282b3e37f8
May 25 02:00:34 inanna kernel: [34045.271963] R13: 3e0000000000c8ff R14: ffffa68a42d4fe30 R15: ffff8e28e4b25960
May 25 02:00:34 inanna kernel: [34045.271964] FS: 00007f63e26f6700(0000) GS:ffff8e295f3c0000(0000) knlGS:0000000000000000
May 25 02:00:34 inanna kernel: [34045.271965] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
May 25 02:00:34 inanna kernel: [34045.271966] CR2: 00007f63d5efffe8 CR3: 0000000111f6c000 CR4: 00000000001406e0
May 25 02:00:34 inanna kernel: [34045.271967] Call Trace:
May 25 02:00:34 inanna kernel: [34045.271970] _raw_spin_lock+0x20/0x30
May 25 02:00:34 inanna kernel: [34045.271972] __migration_entry_wait+0x1c/0x180
May 25 02:00:34 inanna kernel: [34045.271973] migration_entry_wait+0x74/0x80
May 25 02:00:34 inanna kernel: [34045.271976] do_swap_page+0x5b3/0x770
May 25 02:00:34 inanna kernel: [34045.271977] ? futex_wake+0x90/0x170
May 25 02:00:34 inanna kernel: [34045.271979] handle_mm_fault+0x873/0x1360
May 25 02:00:34 inanna kernel: [34045.271981] __do_page_fault+0x23e/0x4e0
May 25 02:00:34 inanna kernel: [34045.271983] do_page_fault+0x22/0x30
May 25 02:00:34 inanna kernel: [34045.271985] page_fault+0x28/0x30
May 25 02:00:34 inanna kernel: [34045.271986] RIP: 0033:0x7f63efbd1a96
May 25 02:00:34 inanna kernel: [34045.271987] RSP: 002b:00007f63e26f5d70 EFLAGS: 00010206
May 25 02:00:34 inanna kernel: [34045.271988] RAX: 00007f63d5efffe8 RBX: 00007f63d5e00218 RCX: 0000000000013f8d
May 25 02:00:34 inanna kernel: [34045.271988] RDX: 00000000000004fe RSI: 00007f63e26f5de8 RDI: 00007f63e26f5da0
May 25 02:00:34 inanna kernel: [34045.271989] RBP: 00007f63d5e00000 R08: 0000000000000000 R09: 000000000008dc63
May 25 02:00:34 inanna kernel: [34045.271990] R10: 000f95cf9b565e00 R11: 0000000000000001 R12: 00007f63e26f5da0
May 25 02:00:34 inanna kernel: [34045.271991] R13: 0000000000000001 R14: 00007f63e0183c20 R15: 00007f6395f4c228
May 25 02:00:34 inanna kernel: [34045.271992] Code: c0 74 e6 4d 85 c9 c6 07 01 74 30 41 c7 41 08 01 00 00 00 e9 52 ff ff ff 83 fa 01 0f 84 b0 fe ff ff 8b 07 84 c0 74 08 f3 90 8b 07 <84> c0 75 f8 b8 01 00 00 00 66 89 07 5d c3 f3 90 4c 8b 09 4d 85
May 25 02:00:41 inanna kernel: [34052.906458] INFO: rcu_sched self-detected stall on CPU
May 25 02:00:41 inanna kernel: [34052.906465] 7-...: (14999 ticks this GP) idle=f87/140000000000001/0 softirq=322683/322683 fqs=7498
May 25 02:00:41 inanna kernel: [34052.906466] (t=15000 jiffies g=614139 c=614138 q=3258)
May 25 02:00:41 inanna kernel: [34052.906468] Task dump for CPU 7:
May 25 02:00:41 inanna kernel: [34052.906470] JS Helper R running task 0 11911 4830 0x00000008
May 25 02:00:41 inanna kernel: [34052.906472] Call Trace:
May 25 02:00:41 inanna kernel: [34052.906474] <IRQ>
May 25 02:00:41 inanna kernel: [34052.906478] sched_show_task+0xd3/0x140
May 25 02:00:41 inanna kernel: [34052.906480] dump_cpu_task+0x37/0x40
May 25 02:00:41 inanna kernel: [34052.906482] rcu_dump_cpu_stacks+0x99/0xbd
May 25 02:00:41 inanna kernel: [34052.906485] rcu_check_callbacks+0x703/0x850
May 25 02:00:41 inanna kernel: [34052.906487] ? acct_account_cputime+0x1c/0x20
May 25 02:00:41 inanna kernel: [34052.906489] ? account_system_time+0x7a/0x110
May 25 02:00:41 inanna kernel: [34052.906491] ? tick_sched_handle.isra.15+0x60/0x60
May 25 02:00:41 inanna kernel: [34052.906493] update_process_times+0x2f/0x60
May 25 02:00:41 inanna kernel: [34052.906504] tick_sched_handle.isra.15+0x25/0x60
May 25 02:00:41 inanna kernel: [34052.906505] tick_sched_timer+0x3d/0x70
May 25 02:00:41 inanna kernel: [34052.906507] __hrtimer_run_queues+0xf3/0x270
May 25 02:00:41 inanna kernel: [34052.906508] hrtimer_interrupt+0xa3/0x1e0
May 25 02:00:41 inanna kernel: [34052.906511] local_apic_timer_interrupt+0x38/0x60
May 25 02:00:41 inanna kernel: [34052.906514] smp_apic_timer_interrupt+0x38/0x50
May 25 02:00:41 inanna kernel: [34052.906515] apic_timer_interrupt+0x89/0x90
May 25 02:00:41 inanna kernel: [34052.906518] RIP: 0010:native_queued_spin_lock_slowpath+0x177/0x1a0
May 25 02:00:41 inanna kernel: [34052.906519] RSP: 0000:ffffa68a42d4fd48 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10
May 25 02:00:41 inanna kernel: [34052.906520] RAX: 0000000000000101 RBX: ffffd36204acf8f0 RCX: 0000000000000001
May 25 02:00:41 inanna kernel: [34052.906521] RDX: 0000000000000101 RSI: 0000000000000001 RDI: ffffd36204acf8f0
May 25 02:00:41 inanna kernel: [34052.906522] RBP: ffffa68a42d4fd48 R08: 0000000000000101 R09: ffff8e29515dc5c0
May 25 02:00:41 inanna kernel: [34052.906522] R10: 000f95cf9b565e00 R11: 0000000000000001 R12: ffff8e282b3e37f8
May 25 02:00:41 inanna kernel: [34052.906523] R13: 3e0000000000c8ff R14: ffffa68a42d4fe30 R15: ffff8e28e4b25960
May 25 02:00:41 inanna kernel: [34052.906524] </IRQ>
May 25 02:00:41 inanna kernel: [34052.906526] _raw_spin_lock+0x20/0x30
May 25 02:00:41 inanna kernel: [34052.906527] __migration_entry_wait+0x1c/0x180
May 25 02:00:41 inanna kernel: [34052.906528] migration_entry_wait+0x74/0x80
May 25 02:00:41 inanna kernel: [34052.906531] do_swap_page+0x5b3/0x770
May 25 02:00:41 inanna kernel: [34052.906532] ? futex_wake+0x90/0x170
May 25 02:00:41 inanna kernel: [34052.906534] handle_mm_fault+0x873/0x1360
May 25 02:00:41 inanna kernel: [34052.906536] __do_page_fault+0x23e/0x4e0
May 25 02:00:41 inanna kernel: [34052.906538] do_page_fault+0x22/0x30
May 25 02:00:41 inanna kernel: [34052.906539] page_fault+0x28/0x30
May 25 02:00:41 inanna kernel: [34052.906541] RIP: 0033:0x7f63efbd1a96
May 25 02:00:41 inanna kernel: [34052.906541] RSP: 002b:00007f63e26f5d70 EFLAGS: 00010206
May 25 02:00:41 inanna kernel: [34052.906543] RAX: 00007f63d5efffe8 RBX: 00007f63d5e00218 RCX: 0000000000013f8d
May 25 02:00:41 inanna kernel: [34052.906543] RDX: 00000000000004fe RSI: 00007f63e26f5de8 RDI: 00007f63e26f5da0
May 25 02:00:41 inanna kernel: [34052.906544] RBP: 00007f63d5e00000 R08: 0000000000000000 R09: 000000000008dc63
May 25 02:00:41 inanna kernel: [34052.906545] R10: 000f95cf9b565e00 R11: 0000000000000001 R12: 00007f63e26f5da0
May 25 02:00:41 inanna kernel: [34052.906546] R13: 0000000000000001 R14: 00007f63e0183c20 R15: 00007f6395f4c22

This is followed by about 100 NUL characters, and then the boot messages some 5 1/2 hours later, The ieee80211 warnings can be ignored, they always appear (there is no decent driver that I can find for my wifi). It's the messages about raw_spin_lock and do_swap_page that seem more relevant. That, and the "kernel BUG" message at the top :) And one of the big differences between yakkety and zesty (when this problem began) is the switch to a 4.10 kernel.

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: linux-image-generic 4.10.0.21.23
ProcVersionSignature: Ubuntu 4.10.0-21.23-generic 4.10.11
Uname: Linux 4.10.0-21-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.4-0ubuntu4.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: conrad 6809 F.... pulseaudio
Date: Thu May 25 07:33:35 2017
HibernationDevice: RESUME=UUID=eb2b25c8-5489-484c-b3d1-b0db88311114
InstallationDate: Installed on 2013-02-14 (1560 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: Hewlett-Packard HP Pavilion dv7 Notebook PC
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-21-generic root=UUID=b2f1b8ee-6793-4070-8eb3-a07e52b30d03 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.10.0-21-generic N/A
 linux-backports-modules-4.10.0-21-generic N/A
 linux-firmware 1.164.1
SourcePackage: linux
UpgradeStatus: Upgraded to zesty on 2017-04-22 (33 days ago)
dmi.bios.date: 05/02/2012
dmi.bios.vendor: Insyde
dmi.bios.version: F.0A
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 181D
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 52.18
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.0A:bd05/02/2012:svnHewlett-Packard:pnHPPaviliondv7NotebookPC:pvr078F100000205720000620100:rvnHewlett-Packard:rn181D:rvr52.18:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP Pavilion dv7 Notebook PC
dmi.product.version: 078F100000205720000620100
dmi.sys.vendor: Hewlett-Packard