Description of problem:
I were upgrading the system both with new kernel, some other packages as well as BIOS and Intel ME firmware updates.
Unclear how to reproduce due to the many changes at once involved.
Had to reboot in order to be able to login to gnome (wayland), first attemt the login screen "froze" with the actual login fields gone, computer were still responsive tho.
WARNING: CPU: 6 PID: 1005 at kernel/workqueue.c:1444 __queue_work+0x33a/0x3e0
Modules linked in: intel_rapl iwlwifi x86_pkg_temp_thermal intel_powerclamp dell_rbtn coretemp cfg80211 iTCO_wdt iTCO_vendor_support mei_wdt kvm_intel snd_hda_codec_realtek(+) snd_hda_codec_generic kvm dell_laptop(+) dell_smbios_smm dcdbas rtsx_pci_ms snd_hda_intel ipmi_devintf dell_smm_hwmon ipmi_msghandler memstick irqbypass intel_cstate snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device btusb snd_pcm intel_uncore btrtl btbcm btintel intel_rapl_perf bluetooth uvcvideo snd_timer videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev dell_smbios_wmi dell_wmi dell_smbios snd wmi_bmof joydev soundcore media i2c_i801 intel_wmi_thunderbolt dell_wmi_descriptor mei_me idma64 ecdh_generic rfkill mei intel_lpss_pci processor_thermal_device shpchp intel_pch_thermal
intel_lpss intel_soc_dts_iosf intel_hid int3402_thermal int3403_thermal sparse_keymap int3400_thermal int340x_thermal_zone acpi_thermal_rel acpi_pad binfmt_misc dm_crypt hid_multitouch i915 rtsx_pci_sdmmc mmc_core mxm_wmi i2c_algo_bit drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel nvme drm ghash_clmulni_intel nvme_core serio_raw rtsx_pci i2c_hid wmi video
CPU: 6 PID: 1005 Comm: systemd-backlig Not tainted 4.15.14-200.fc26.x86_64 #1
Hardware name: Dell Inc. Precision 5510/0N8J4R, BIOS 1.6.1 12/11/2017
RSP: 0018:ffffbded03c8fd80 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffffffff9714e400 RCX: 0000000000000000
RDX: ffffffffc098c0d8 RSI: 0000000000000000 RDI: ffff9d073dda0380
RBP: ffff9d071d018c00 R08: ffff9d071cc03d98 R09: ffff9d073dc20380
R10: 0000000000000000 R11: 0000000000000040 R12: 0000000000000006
R13: 0000000000000400 R14: ffffffffc098c0d0 R15: ffff9d073dda5500
FS: 00007f217914c9c0(0000) GS:ffff9d073dd80000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555e2acee5d8 CR3: 00000008940d0001 CR4: 00000000003606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
RSP: 002b:00007ffc5cd0c998 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00005556f5a6a5d0 RCX: 00007f21789aa280
RDX: 0000000000000001 RSI: 00005556f5a6a5d0 RDI: 0000000000000004
RBP: 00007ffc5cd0ca70 R08: 00005556f5a6a5d0 R09: 0000000000000000
R10: 00005556f5a6a580 R11: 0000000000000246 R12: 0000000000000001
R13: 00005556f5a691c0 R14: 00005556f49c9ae4 R15: 0000000000000004
Code: 3c 25 c0 5b 01 00 f6 47 4c 20 74 18 e8 f0 86 00 00 48 85 c0 74 0e 48 8b 40 20 48 3b 68 08 0f 84 f9 fc ff ff 0f 0b e9 d0 fd ff ff <0f> 0b 49 8b 07 c6 00 00 e9 c3 fd ff ff 83 cd 02 49 8d 57 60 e9
Potential duplicate: bug 1560713
Created attachment 1417985 [details]
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