Could continue to chat in one application, the desktop environment was responsive, but no shells worked and I couldn't get to a tty and I couldn't ssh into remotely. Looks like the journal has everything up until I pressed and held down the power button. /dev/nvme0n1p7 on / type btrfs (rw,noatime,seclabel,compress=zstd:1,ssd,space_cache=v2,subvolid=274,subvol=/root) dmesg pretty https://pastebin.com/pvG3ERnd dmesg (likely MUA stomped) [10224.184137] flap.local kernel: perf: interrupt took too long (2522 > 2500), lowering kernel.perf_event_max_sample_rate to 79000 [14712.698184] flap.local kernel: perf: interrupt took too long (3153 > 3152), lowering kernel.perf_event_max_sample_rate to 63000 [17903.211976] flap.local kernel: Lockdown: systemd-logind: hibernation is restricted; see man kernel_lockdown.7 [22877.667177] flap.local kernel: BUG: kernel NULL pointer dereference, address: 00000000000006c8 [22877.667182] flap.local kernel: #PF: supervisor read access in kernel mode [22877.667184] flap.local kernel: #PF: error_code(0x0000) - not-present page [22877.667187] flap.local kernel: PGD 0 P4D 0 [22877.667191] flap.local kernel: Oops: 0000 [#1] SMP PTI [22877.667194] flap.local kernel: CPU: 2 PID: 14747 Comm: kworker/u8:7 Not tainted 5.5.0-0.rc1.git0.1.fc32.x86_64+debug #1 [22877.667196] flap.local kernel: Hardware name: HP HP Spectre Notebook/81A0, BIOS F.43 04/16/2019 [22877.667226] flap.local kernel: Workqueue: btrfs-delalloc btrfs_work_helper [btrfs] [22877.667233] flap.local kernel: RIP: 0010:bio_associate_blkg_from_css+0x1c/0x3b0 [22877.667235] flap.local kernel: Code: 66 89 6b 14 c7 43 1c 01 00 00 00 5b 5d c3 0f 1f 44 00 00 41 55 41 54 49 89 f4 55 48 89 fd 53 48 8b 47 08 65 ff 05 ac 6f ab 7d <4c> 8b a8 c8 06 00 00 68 85 3e 56 82 31 f6 45 31 c9 45 31 c0 b9 02 [22877.667238] flap.local kernel: RSP: 0018:ffff971181fcfca8 EFLAGS: 00010282 [22877.667240] flap.local kernel: RAX: 0000000000000000 RBX: ffff8b76697cd3c0 RCX: 0000000000000000 [22877.667243] flap.local kernel: RDX: 000000000000c000 RSI: ffff8b73eeabc800 RDI: ffff8b76385055b0 [22877.667245] flap.local kernel: RBP: ffff8b76385055b0 R08: ffff8b76385055b0 R09: ffff8b7634800900 [22877.667247] flap.local kernel: R10: 00000000001f5c60 R11: 0000000000000000 R12: ffff8b73eeabc800 [22877.667249] flap.local kernel: R13: ffff8b75fbbc2808 R14: ffff8b766b000000 R15: ffff8b76385055b0 [22877.667251] flap.local kernel: FS: 0000000000000000(0000) GS:ffff8b7676a00000(0000) knlGS:0000000000000000 [22877.667254] flap.local kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [22877.667256] flap.local kernel: CR2: 00000000000006c8 CR3: 0000000009612001 CR4: 00000000003606e0 [22877.667257] flap.local kernel: Call Trace: [22877.667287] flap.local kernel: btrfs_submit_compressed_write+0x117/0x360 [btrfs] [22877.667310] flap.local kernel: submit_compressed_extents+0x315/0x460 [btrfs] [22877.667317] flap.local kernel: ? find_held_lock+0x32/0x90 [22877.667321] flap.local kernel: ? mark_held_locks+0x2d/0x80 [22877.667345] flap.local kernel: btrfs_work_helper+0x148/0x5b0 [btrfs] [22877.667352] flap.local kernel: process_one_work+0x272/0x5a0 [22877.667359] flap.local kernel: worker_thread+0x50/0x3b0 [22877.667365] flap.local kernel: kthread+0x106/0x140 [22877.667368] flap.local kernel: ? process_one_work+0x5a0/0x5a0 [22877.667371] flap.local kernel: ? kthread_park+0x90/0x90 [22877.667376] flap.local kernel: ret_from_fork+0x3a/0x50 [22877.667384] flap.local kernel: Modules linked in: hidp thunderbolt uinput rfcomm ccm xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp tun bridge stp llc nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep x86_pkg_temp_thermal intel_powerclamp coretemp sunrpc kvm snd_soc_skl iwlmvm snd_soc_hdac_hda mac80211 snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi libarc4 iTCO_wdt iTCO_vendor_support mei_hdcp intel_rapl_msr iwlwifi uvcvideo snd_hda_codec_hdmi irqbypass snd_soc_core snd_hda_codec_conexant vfat snd_compress snd_hda_codec_generic ac97_bus crct10dif_pclmul ledtrig_audio fat videobuf2_vmalloc [22877.667461] flap.local kernel: CR2: 00000000000006c8 [22877.667464] flap.local kernel: ---[ end trace 833e6c4636dfc480 ]--- [22877.667468] flap.local kernel: RIP: 0010:bio_associate_blkg_from_css+0x1c/0x3b0 [22877.667471] flap.local kernel: Code: 66 89 6b 14 c7 43 1c 01 00 00 00 5b 5d c3 0f 1f 44 00 00 41 55 41 54 49 89 f4 55 48 89 fd 53 48 8b 47 08 65 ff 05 ac 6f ab 7d <4c> 8b a8 c8 06 00 00 68 85 3e 56 82 31 f6 45 31 c9 45 31 c0 b9 02 [22877.667473] flap.local kernel: RSP: 0018:ffff971181fcfca8 EFLAGS: 00010282 [22877.667475] flap.local kernel: RAX: 0000000000000000 RBX: ffff8b76697cd3c0 RCX: 0000000000000000 [22877.667477] flap.local kernel: RDX: 000000000000c000 RSI: ffff8b73eeabc800 RDI: ffff8b76385055b0 [22877.667479] flap.local kernel: RBP: ffff8b76385055b0 R08: ffff8b76385055b0 R09: ffff8b7634800900 [22877.667481] flap.local kernel: R10: 00000000001f5c60 R11: 0000000000000000 R12: ffff8b73eeabc800 [22877.667483] flap.local kernel: R13: ffff8b75fbbc2808 R14: ffff8b766b000000 R15: ffff8b76385055b0 [22877.667485] flap.local kernel: FS: 0000000000000000(0000) GS:ffff8b7676a00000(0000) knlGS:0000000000000000 [22877.667487] flap.local kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [22877.667490] flap.local kernel: CR2: 00000000000006c8 CR3: 0000000009612001 CR4: 00000000003606e0 [22877.667493] flap.local kernel: BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:38 [22877.667496] flap.local kernel: in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 14747, name: kworker/u8:7 [22877.667498] flap.local kernel: INFO: lockdep is turned off. [22877.667500] flap.local kernel: irq event stamp: 136012 [22877.667504] flap.local kernel: hardirqs last enabled at (136011): [<ffffffff822b8e66>] __test_set_page_writeback+0x2c6/0x4e0 [22877.667509] flap.local kernel: hardirqs last disabled at (136012): [<ffffffff820038d7>] trace_hardirqs_off_thunk+0x1a/0x1c [22877.667532] flap.local kernel: softirqs last enabled at (135852): [<ffffffffc098c2a2>] zstd_put_workspace+0x82/0x160 [btrfs] [22877.667553] flap.local kernel: softirqs last disabled at (135850): [<ffffffffc098c23a>] zstd_put_workspace+0x1a/0x160 [btrfs] [22877.667557] flap.local kernel: CPU: 2 PID: 14747 Comm: kworker/u8:7 Tainted: G D 5.5.0-0.rc1.git0.1.fc32.x86_64+debug #1 [22877.667559] flap.local kernel: Hardware name: HP HP Spectre Notebook/81A0, BIOS F.43 04/16/2019 [22877.667580] flap.local kernel: Workqueue: btrfs-delalloc btrfs_work_helper [btrfs] [22877.667582] flap.local kernel: Call Trace: [22877.667587] flap.local kernel: dump_stack+0x8f/0xd0 [22877.667592] flap.local kernel: ___might_sleep.cold+0xb3/0xc3 [22877.667596] flap.local kernel: exit_signals+0x30/0x2d0 [22877.667600] flap.local kernel: do_exit+0xc1/0xcd0 [22877.667605] flap.local kernel: ? kthread+0x106/0x140 [22877.667610] flap.local kernel: rewind_stack_do_exit+0x17/0x20 [22877.667618] flap.local kernel: note: kworker/u8:7[14747] exited with preempt_count 1 [23112.137098] flap.local kernel: psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [23112.138141] flap.local kernel: psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [23112.139241] flap.local kernel: psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [23112.140272] flap.local kernel: psmouse serio1: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [23112.151582] flap.local kernel: psmouse serio1: TouchPad at isa0060/serio1/input0 - driver resynced. [24074.296721] flap.local kernel: perf: interrupt took too long (3944 > 3941), lowering kernel.perf_event_max_sample_rate to 50000 [25580.723981] flap.local kernel: Lockdown: systemd-logind: hibernation is restricted; see man kernel_lockdown.7 [25589.124775] flap.local kernel: hp_wmi: Unknown event_id - 131073 - 0x0 [chris@flap ~]$ dmesg full https://drive.google.com/open?id=1mZlSn0N6rVwLpr42EtQbF1qrggQ0ygfF -- Chris Murphy