To see errors after a crash

sudo journalctl -r -p err

returns

-- Logs begin at Sat 2020-08-08 18:53:54 BST, end at Mon 2020-08-10 17:23:48 BST. --
Aug 10 17:19:00 bigmamba kernel: CIFS VFS: Hardlinks will not be recognized on this mount. Consider mounting with the "noserverino" option to silence this message.
Aug 10 17:19:00 bigmamba kernel: CIFS VFS: The server doesn't seem to support them properly or the files might be on different servers (DFS).
Aug 10 17:19:00 bigmamba kernel: CIFS VFS: Autodisabling the use of server inode numbers on \\192.168.1.2\secureshare.
Aug 10 17:18:59 bigmamba kernel: CIFS VFS: cifs_mount failed w/return code = -2
Aug 10 17:18:59 bigmamba kernel: CIFS VFS: Error connecting to socket. Aborting operation.
Aug 10 17:07:11 bigmamba gdm-password][2126]: gkr-pam: unable to locate daemon control file
Aug 10 17:06:15 bigmamba pulseaudio[1373]: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail.
Aug 10 17:06:15 bigmamba pulseaudio[1373]: Most likely this is a bug in the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA developers.
Aug 10 17:06:15 bigmamba pulseaudio[1373]: ALSA woke us up to write new data to the device, but there was actually nothing to write.
Aug 10 17:06:13 bigmamba libvirtd[1295]: internal error: Failed to autostart storage pool 'KVM': cannot open directory '/media/peter/Disk2/KVM': No such file or directory
Aug 10 17:06:13 bigmamba libvirtd[1295]: cannot open directory '/media/peter/Disk2/KVM': No such file or directory
Aug 10 17:06:11 bigmamba kernel: usb 3-1.3: device descriptor read/64, error -32
Aug 10 17:06:11 bigmamba kernel: Initramfs unpacking failed: Decoding failed
Aug 10 17:06:11 bigmamba kernel: ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20190816/psobject-220)
Aug 10 17:06:11 bigmamba kernel: ACPI BIOS Error (bug): Failure creating named object [\_SB.PCI0.GPP8._DSM], AE_ALREADY_EXISTS (20190816/dswload2-326)
Aug 10 17:06:11 bigmamba kernel: mce: [Hardware Error]: PROCESSOR 2:870f10 TIME 1597075563 SOCKET 0 APIC d microcode 8701021
Aug 10 17:06:11 bigmamba kernel: mce: [Hardware Error]: TSC 0 ADDR 1ffff959051ba MISC d012000100000000 SYND 4d000000 IPID 500b000000000 
Aug 10 17:06:11 bigmamba kernel: mce: [Hardware Error]: CPU 17: Machine Check: 0 Bank 5: bea0000000000108
Aug 10 17:06:11 bigmamba kernel: do_IRQ: 10.55 No irq handler for vector
Aug 10 17:06:11 bigmamba kernel: do_IRQ: 9.55 No irq handler for vector
Aug 10 17:06:11 bigmamba kernel: do_IRQ: 8.55 No irq handler for vector
Aug 10 17:06:11 bigmamba kernel: do_IRQ: 7.55 No irq handler for vector
Aug 10 17:06:11 bigmamba kernel: do_IRQ: 6.55 No irq handler for vector
Aug 10 17:06:11 bigmamba kernel: do_IRQ: 5.55 No irq handler for vector
Aug 10 17:06:11 bigmamba kernel: do_IRQ: 4.55 No irq handler for vector
Aug 10 17:06:11 bigmamba kernel: do_IRQ: 3.55 No irq handler for vector
Aug 10 17:06:11 bigmamba kernel: do_IRQ: 2.55 No irq handler for vector
Aug 10 17:06:11 bigmamba kernel: do_IRQ: 1.55 No irq handler for vector
-- Reboot --
Aug 10 02:00:31 bigmamba libvirtd[1253]: Cannot access storage file '/media/peter/Disk2/KVM/Fedora-29' (as uid:64055, gid:108): Permission denied
Aug 10 01:59:07 bigmamba kernel: CIFS VFS: Hardlinks will not be recognized on this mount. Consider mounting with the "noserverino" option to silence this message.
Aug 10 01:59:07 bigmamba kernel: CIFS VFS: The server doesn't seem to support them properly or the files might be on different servers (DFS).
Aug 10 01:59:07 bigmamba kernel: CIFS VFS: Autodisabling the use of server inode numbers on \\192.168.1.2\secureshare.
Aug 10 01:59:07 bigmamba kernel: CIFS VFS: cifs_mount failed w/return code = -2
Aug 10 01:59:07 bigmamba kernel: CIFS VFS: Error connecting to socket. Aborting operation.
Aug 10 01:58:43 bigmamba gdm-password][2493]: gkr-pam: unable to locate daemon control file
Aug 10 01:58:33 bigmamba libvirtd[1253]: internal error: Failed to autostart storage pool 'KVM': cannot open directory '/media/peter/Disk2/KVM': No such file or directory
Aug 10 01:58:33 bigmamba libvirtd[1253]: cannot open directory '/media/peter/Disk2/KVM': No such file or directory
Aug 10 01:58:31 bigmamba kernel: usb 3-1.3: device descriptor read/64, error -32
Aug 10 01:58:31 bigmamba kernel: Initramfs unpacking failed: Decoding failed
Aug 10 01:58:31 bigmamba kernel: ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20190816/psobject-220)
Aug 10 01:58:31 bigmamba kernel: ACPI BIOS Error (bug): Failure creating named object [\_SB.PCI0.GPP8._DSM], AE_ALREADY_EXISTS (20190816/dswload2-326)
Aug 10 01:58:31 bigmamba kernel: do_IRQ: 10.55 No irq handler for vector
Aug 10 01:58:31 bigmamba kernel: do_IRQ: 9.55 No irq handler for vector
Aug 10 01:58:31 bigmamba kernel: do_IRQ: 8.55 No irq handler for vector
Aug 10 01:58:31 bigmamba kernel: do_IRQ: 7.55 No irq handler for vector
Aug 10 01:58:31 bigmamba kernel: do_IRQ: 6.55 No irq handler for vector
Aug 10 01:58:31 bigmamba kernel: do_IRQ: 5.55 No irq handler for vector
Aug 10 01:58:31 bigmamba kernel: do_IRQ: 4.55 No irq handler for vector
Aug 10 01:58:31 bigmamba kernel: do_IRQ: 3.55 No irq handler for vector
Aug 10 01:58:31 bigmamba kernel: do_IRQ: 2.55 No irq handler for vector
Aug 10 01:58:31 bigmamba kernel: do_IRQ: 1.55 No irq handler for vector
-- Reboot --