WARNING: CPU: 6 PID: 90 at drivers/gpu/drm/drm_vblank.c:1269 drm_wait_one_vblank+0x1b9/0x1d0 [drm]
Modules linked in: snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat ip6table_raw ip6table_security iptable_raw iptable_security ip_set nf_tables nfnetlink ip6table_filter iptable_filter tun ip6table_mangle xt_MASQUERADE xt_mark iptable_mangle ip6table_nat ip6_tables iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 bnep sunrpc vfat fat usblp snd_soc_skl_hda_dsp snd_soc_intel_hda_dsp_common snd_soc_hdac_hdmi snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_soc_dmic snd_sof_pci_intel_tgl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof snd_soc_hdac_hda snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi
 soundwire_bus ledtrig_audio snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine iTCO_wdt intel_tcc_cooling intel_pmc_bxt x86_pkg_temp_thermal intel_powerclamp iwlmvm coretemp iTCO_vendor_support snd_hda_intel mei_hdcp mei_pxp snd_intel_dspcfg pmt_telemetry snd_intel_sdw_acpi pmt_class intel_rapl_msr snd_hda_codec kvm_intel mac80211 snd_hda_core libarc4 kvm snd_hwdep snd_seq irqbypass snd_seq_device intel_cstate iwlwifi snd_pcm intel_uncore uvcvideo iwlmei snd_timer pcspkr wmi_bmof videobuf2_vmalloc snd videobuf2_memops i2c_i801 videobuf2_v4l2 r8153_ecm spi_pxa2xx_platform soundcore i2c_smbus cfg80211 videobuf2_common dw_dmac btusb cdc_ether btrtl mei_me videodev usbnet btbcm mei idma64 btintel mc r8152 btmtk mii bluetooth uas joydev usb_storage processor_thermal_device_pci_legacy processor_thermal_device processor_thermal_rfim ecdh_generic processor_thermal_mbox processor_thermal_rapl intel_rapl_common intel_vsec intel_soc_dts_iosf igen6_edac ideapad_laptop sparse_keymap
 platform_profile rfkill int3403_thermal int340x_thermal_zone int3400_thermal acpi_pad acpi_tad acpi_thermal_rel zram ip_tables i915 i2c_algo_bit drm_kms_helper nvme nvme_core cec ttm hid_multitouch ucsi_acpi crct10dif_pclmul crc32_pclmul crc32c_intel drm ghash_clmulni_intel typec_ucsi serio_raw i2c_hid_acpi vmd typec wmi i2c_hid video pinctrl_tigerlake ipmi_devintf ipmi_msghandler fuse
CPU: 6 PID: 90 Comm: kworker/6:1 Not tainted 5.17.12-100.fc34.x86_64 #1
Hardware name: LENOVO 82FG/LNVNB161216, BIOS FHCN24WW 01/14/2021
Workqueue: events i915_hotplug_work_func [i915]
RIP: 0010:drm_wait_one_vblank+0x1b9/0x1d0 [drm]
Code: fe ff ff 48 8b 7d 08 4c 8b 6f 50 4d 85 ed 74 26 e8 dc 8a 3b c9 44 89 e1 4c 89 ea 48 c7 c7 18 b0 4c c0 48 89 c6 e8 27 14 7b c9 <0f> 0b e9 9c fe ff ff 4c 8b 2f eb 98 4c 8b 2f eb d5 66 0f 1f 44 00
RSP: 0018:ffffb346c0447cb8 EFLAGS: 00010296
RAX: 0000000000000032 RBX: 0000000000000863 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff8a63f1f5 RDI: 00000000ffffffff
RBP: ffff908ccdce0000 R08: 0000000000000000 R09: ffffb346c0447af8
R10: ffffb346c0447af0 R11: ffffffff8af455c8 R12: 0000000000000002
R13: ffff908cc15fd630 R14: ffff908cc8dd7290 R15: ffff908d8471a000
FS:  0000000000000000(0000) GS:ffff908e68980000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6aabf9b000 CR3: 00000001e8d04006 CR4: 0000000000770ee0
PKRU: 55555554
Call Trace:
 <TASK>
 ? do_wait_intr_irq+0xa0/0xa0
 intel_dp_retrain_link+0x3f9/0x450 [i915]
 intel_ddi_hotplug+0x98/0x420 [i915]
 ? preempt_count_add+0x4a/0xa0
 ? __mutex_remove_waiter+0x15/0x60
 ? _raw_spin_unlock+0x16/0x30
 i915_hotplug_work_func+0x1a3/0x280 [i915]
 process_one_work+0x1e2/0x3b0
 ? rescuer_thread+0x370/0x370
 worker_thread+0x50/0x3a0
 ? rescuer_thread+0x370/0x370
 kthread+0xe5/0x110
 ? kthread_complete_and_exit+0x20/0x20
 ret_from_fork+0x1f/0x30
 </TASK>

kernel BUG at include/linux/mm.h:717!
invalid opcode: 0000 [#1] PREEMPT SMP PTI
CPU: 1 PID: 33806 Comm: kworker/u4:1 Not tainted 5.17.12-100.fc34.x86_64 #1
Hardware name: TOSHIBA PORTEGE M750/Portable PC, BIOS Version 3.00 09/10/2009
Workqueue: i915 __i915_gem_free_work [i915]
RIP: 0010:release_pages+0x3f6/0x520
Code: e9 17 fd ff ff 48 8b 74 24 28 49 8d 7e 50 45 31 f6 e8 ee b7 a2 00 e9 7f fc ff ff 48 c7 c6 10 55 5c 98 48 89 ef e8 6a 7d 02 00 <0f> 0b 48 c7 c6 10 55 5c 98 48 89 ef e8 59 7d 02 00 0f 0b 41 b8 05
RSP: 0018:ffffad94cb4dfce0 EFLAGS: 00010282
RAX: 000000000000003e RBX: ffffad94cb4dfd78 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff9863f1f5 RDI: 00000000ffffffff
RBP: ffffd0e144411800 R08: 0000000000000000 R09: ffffad94cb4dfae0
R10: ffffad94cb4dfad8 R11: ffffffff98f455c8 R12: ffffad94cb4dfdf8
R13: ffffad94cb4dfd10 R14: 0000000000000000 R15: ffffad94cb4dfdc8
FS:  0000000000000000(0000) GS:ffff8db2b3f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fadff6ae7f0 CR3: 000000012db9e000 CR4: 00000000000006e0
Call Trace:
 <TASK>
 ? check_move_unevictable_pages+0x393/0x570
 __pagevec_release+0x1b/0x30
 shmem_sg_free_table+0x151/0x1a0 [i915]
 i915_gem_object_put_pages_shmem+0x58/0x90 [i915]
 __i915_gem_object_put_pages+0x47/0x60 [i915]
 __i915_gem_free_objects+0x8b/0x120 [i915]
 process_one_work+0x1e5/0x3b0
 ? rescuer_thread+0x370/0x370
 worker_thread+0x50/0x3a0
 ? rescuer_thread+0x370/0x370
 kthread+0xe8/0x110
 ? kthread_complete_and_exit+0x20/0x20
 ret_from_fork+0x22/0x30
 </TASK>
Modules linked in: uinput rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter wacom_w8001 serport bnep sunrpc squashfs loop btusb btrtl btbcm btintel btmtk bluetooth cdc_ether usbnet mii cdc_acm cdc_wdm ecdh_generic mei_wdt iTCO_wdt intel_pmc_bxt iTCO_vendor_support iwldvm uvcvideo mac80211 videobuf2_vmalloc videobuf2_memops libarc4 iwlwifi videobuf2_v4l2 videobuf2_common iwlmei videodev snd_hda_codec_hdmi snd_hda_codec_realtek coretemp snd_hda_codec_generic ledtrig_audio cfg80211 joydev mc
 snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec pcspkr snd_hda_core snd_hwdep toshiba_acpi r592 snd_seq sparse_keymap industrialio memstick snd_seq_device wmi toshiba_bluetooth snd_pcm toshiba_haps rfkill tpm_infineon mei_me snd_timer mei snd acpi_cpufreq soundcore lpc_ich zram ip_tables i915 i2c_algo_bit drm_kms_helper sdhci_pci cqhci sdhci e1000e cec ttm drm mmc_core firewire_ohci firewire_core crc_itu_t serio_raw yenta_socket video ipmi_devintf ipmi_msghandler fuse

WARNING: CPU: 9 PID: 10069 at drivers/gpu/drm/drm_vblank.c:1269 drm_wait_one_vblank+0x1b9/0x1d0 [drm]
Modules linked in: snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_tables ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bnep binfmt_misc sunrpc vfat fat snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof soundwire_bus snd_hda_codec_hdmi snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_ctl_led snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core iwlmvm
 snd_hda_codec_realtek intel_tcc_cooling snd_compress x86_pkg_temp_thermal snd_hda_codec_generic ac97_bus intel_powerclamp snd_pcm_dmaengine coretemp dell_rbtn mac80211 snd_hda_intel dell_laptop kvm_intel iTCO_wdt snd_intel_dspcfg intel_pmc_bxt mei_hdcp mei_wdt mei_pxp ee1004 iTCO_vendor_support snd_intel_sdw_acpi intel_rapl_msr libarc4 dell_smm_hwmon kvm btusb snd_usb_audio btrtl snd_hda_codec btbcm snd_usbmidi_lib irqbypass iwlwifi snd_hda_core uvcvideo snd_rawmidi rapl snd_hwdep btintel dell_wmi snd_seq videobuf2_vmalloc intel_cstate btmtk ledtrig_audio videobuf2_memops intel_uncore snd_seq_device dell_smbios iwlmei videobuf2_v4l2 processor_thermal_device_pci_legacy dcdbas bluetooth dell_wmi_sysman processor_thermal_device snd_pcm pcspkr firmware_attributes_class dell_wmi_descriptor videobuf2_common wmi_bmof intel_wmi_thunderbolt snd_timer i2c_i801 processor_thermal_rfim processor_thermal_mbox snd cfg80211 i2c_smbus thunderbolt videodev joydev soundcore
 processor_thermal_rapl mei_me ecdh_generic mc intel_rapl_common idma64 rfkill mei intel_soc_dts_iosf intel_pch_thermal int3403_thermal int340x_thermal_zone int3400_thermal acpi_thermal_rel intel_hid sparse_keymap acpi_pad zram ip_tables dm_crypt typec_displayport i915 nouveau drm_ttm_helper i2c_algo_bit drm_kms_helper rtsx_pci_sdmmc mmc_core cec nvme hid_multitouch ucsi_acpi crct10dif_pclmul crc32_pclmul mxm_wmi ttm crc32c_intel ghash_clmulni_intel e1000e drm nvme_core typec_ucsi serio_raw rtsx_pci typec i2c_hid_acpi i2c_hid video wmi pinctrl_cannonlake fuse ipmi_devintf ipmi_msghandler
CPU: 9 PID: 10069 Comm: kworker/9:2 Tainted: G        W         5.17.12-100.fc34.x86_64 #1
Hardware name: Dell Inc. Latitude 5401/0D2RTT, BIOS 1.18.1 02/10/2022
Workqueue: events i915_hotplug_work_func [i915]
RIP: 0010:drm_wait_one_vblank+0x1b9/0x1d0 [drm]
Code: fe ff ff 48 8b 7d 08 4c 8b 6f 50 4d 85 ed 74 26 e8 dc ca 5d d3 44 89 e1 4c 89 ea 48 c7 c7 18 70 2a c0 48 89 c6 e8 27 54 9d d3 <0f> 0b e9 9c fe ff ff 4c 8b 2f eb 98 4c 8b 2f eb d5 66 0f 1f 44 00
RSP: 0018:ffffaa359017fcb8 EFLAGS: 00010296
RAX: 0000000000000032 RBX: 0000000000045ab2 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff9463f1f5 RDI: 00000000ffffffff
RBP: ffff9046cfb20000 R08: 0000000000000000 R09: ffffaa359017faf8
R10: ffffaa359017faf0 R11: ffffffff94f455c8 R12: 0000000000000002
R13: ffff9046c1e5b620 R14: ffff9046c100da90 R15: ffff904898464000
FS:  0000000000000000(0000) GS:ffff904a2c440000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faed5b14000 CR3: 00000002f4e10002 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ? do_wait_intr_irq+0xa0/0xa0
 intel_dp_retrain_link+0x3f9/0x450 [i915]
 intel_ddi_hotplug+0x98/0x420 [i915]
 ? dequeue_entity+0xe8/0x410
 i915_hotplug_work_func+0x1a3/0x280 [i915]
 process_one_work+0x1e2/0x3b0
 ? rescuer_thread+0x370/0x370
 worker_thread+0x1ef/0x3a0
 ? rescuer_thread+0x370/0x370
 kthread+0xe5/0x110
 ? kthread_complete_and_exit+0x20/0x20
 ret_from_fork+0x1f/0x30
 </TASK>

WARNING: CPU: 0 PID: 4019 at drivers/gpu/drm/i915/display/intel_display_power.c:1069 assert_dmc_loaded+0xe3/0x130 [i915]
Modules linked in: cdc_mbim cdc_wdm cdc_ncm cdc_ether usbnet mii rfcomm snd_seq_dummy snd_hrtimer nf_conntrack_netlink xt_addrtype br_netfilter xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables overlay nfnetlink ip6table_filter ip6_tables iptable_filter vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep sunrpc vfat fat squashfs loop elan_i2c snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof soundwire_bus snd_soc_skl snd_hda_codec_hdmi snd_soc_hdac_hda
 snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_ctl_led snd_soc_core snd_hda_codec_realtek snd_hda_codec_generic intel_tcc_cooling snd_compress iwlmvm ac97_bus snd_pcm_dmaengine x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_intel kvm_intel snd_intel_dspcfg iTCO_wdt snd_intel_sdw_acpi mac80211 intel_pmc_bxt snd_hda_codec kvm iTCO_vendor_support libarc4 mei_pxp mei_hdcp mei_wdt intel_rapl_msr irqbypass rapl snd_hda_core iwlwifi btusb snd_hwdep intel_cstate btrtl snd_seq btbcm intel_uncore iwlmei btintel snd_seq_device uvcvideo think_lmi videobuf2_vmalloc btmtk videobuf2_memops videobuf2_v4l2 pcspkr firmware_attributes_class snd_pcm wmi_bmof bluetooth intel_wmi_thunderbolt i2c_i801 cfg80211 videobuf2_common i2c_smbus thunderbolt snd_timer videodev thinkpad_acpi processor_thermal_device_pci_legacy processor_thermal_device mei_me processor_thermal_rfim ledtrig_audio processor_thermal_mbox platform_profile ecdh_generic joydev
 processor_thermal_rapl mc rfkill intel_rapl_common mei snd intel_soc_dts_iosf intel_pch_thermal int3403_thermal soundcore int340x_thermal_zone int3400_thermal acpi_pad acpi_thermal_rel zram ip_tables hid_logitech_hidpp i915 i2c_algo_bit drm_kms_helper rtsx_pci_sdmmc cec mmc_core ttm crct10dif_pclmul crc32_pclmul crc32c_intel e1000e drm nvme ghash_clmulni_intel nvme_core ucsi_acpi serio_raw typec_ucsi rtsx_pci typec wmi video pinctrl_cannonlake hid_logitech_dj ipmi_devintf ipmi_msghandler fuse
CPU: 0 PID: 4019 Comm: kworker/u16:28 Tainted: G        W  OE     5.17.12-100.fc34.x86_64 #1
Hardware name: LENOVO 20NYS7K91R/20NYS7K91R, BIOS N2JET97W (1.75 ) 11/19/2021
Workqueue: events_unbound intel_display_power_put_async_work [i915]
RIP: 0010:assert_dmc_loaded+0xe3/0x130 [i915]
Code: c6 05 7d 45 1e 00 01 4c 8b 67 50 4d 85 e4 75 03 4c 8b 27 e8 9f db 0d ca 4c 89 e2 48 c7 c7 b1 22 8b c0 48 89 c6 e8 ed 64 4d ca <0f> 0b e9 64 ff ff ff 80 3d 4b 45 1e 00 00 0f 85 74 ff ff ff 48 8b
RSP: 0018:ffffb4a1c57a3db8 EFLAGS: 00010296
RAX: 0000000000000028 RBX: ffff9b208f480000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff8b63f1f5 RDI: 00000000ffffffff
RBP: ffff9b208f4807e0 R08: 0000000000000028 R09: 000000008ca7ed94
R10: ffffffffffffffff R11: ffffffffffffffff R12: ffff9b208192c5a0
R13: 000000000000002b R14: ffff9b208f486478 R15: 0000080000000000
FS:  0000000000000000(0000) GS:ffff9b27bc400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000aff041bd000 CR3: 00000005e3e10003 CR4: 00000000003706f0
Call Trace:
 <TASK>
 skl_enable_dc6+0x5e/0x180 [i915]
 __intel_display_power_put_domain+0xee/0x1e0 [i915]
 release_async_put_domains+0x86/0xf0 [i915]
 intel_display_power_put_async_work+0x84/0xe0 [i915]
 process_one_work+0x1e2/0x3b0
 worker_thread+0x50/0x3a0
 ? rescuer_thread+0x370/0x370
 kthread+0xe5/0x110
 ? kthread_complete_and_exit+0x20/0x20
 ret_from_fork+0x1f/0x30
 </TASK>

WARNING: CPU: 1 PID: 4169 at kernel/sched/core.c:5484 preempt_count_sub+0x5b/0x90
Modules linked in: bnep snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter sunrpc squashfs loop intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp btusb btrtl btbcm btintel btmtk coretemp bluetooth kvm_intel kvm ecdh_generic pn544_mei mei_phy pn544 hci nfc irqbypass mei_pxp iTCO_wdt mei_hdcp intel_pmc_bxt iTCO_vendor_support rapl uvcvideo iwlmvm videobuf2_vmalloc intel_cstate videobuf2_memops mac80211 videobuf2_v4l2 videobuf2_common videodev libarc4 mc intel_uncore iwlwifi
 iwlmei cfg80211 joydev snd_hda_codec_realtek wmi_bmof pcspkr snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_hwdep toshiba_acpi snd_seq snd_seq_device sparse_keymap snd_pcm mei_me snd_timer industrialio mei toshiba_bluetooth snd rfkill lpc_ich soundcore zram ip_tables i915 i2c_algo_bit drm_kms_helper cec ttm crct10dif_pclmul crc32_pclmul e1000e crc32c_intel drm ghash_clmulni_intel serio_raw wmi video ipmi_devintf ipmi_msghandler fuse
CPU: 1 PID: 4169 Comm: kworker/u16:2 Not tainted 5.17.12-100.fc34.x86_64 #1
Hardware name: TOSHIBA PORTEGE Z30-A/PORTEGE Z30-A, BIOS Version 4.20   09/02/2015
Workqueue: i915-dp i915_digport_work_func [i915]
RIP: 0010:preempt_count_sub+0x5b/0x90
Code: f0 78 c3 cc e8 36 23 55 00 85 c0 74 f5 8b 15 e4 87 06 02 85 d2 75 eb 48 c7 c6 7c 46 5e 88 48 c7 c7 5a b1 5c 88 e8 b5 10 b4 00 <0f> 0b c3 cc 84 c0 75 c7 e8 08 23 55 00 85 c0 74 c7 8b 05 b6 87 06
RSP: 0018:ffffb2e309897d60 EFLAGS: 00010286
RAX: 000000000000002a RBX: ffff8c080b7407e0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff8863f1f5 RDI: 00000000ffffffff
RBP: 0000000000000202 R08: 0000000000000000 R09: ffffb2e309897ba0
R10: ffffb2e309897b98 R11: ffffffff88f455c8 R12: 00000000000c7204
R13: 0000000000000001 R14: ffff8c080b740800 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8c0917240000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000218660ee7000 CR3: 0000000203e10006 CR4: 00000000001706e0
Call Trace:
 <TASK>
 _raw_spin_unlock_irqrestore+0x25/0x40
 fwtable_read32+0x94/0x200 [i915]
 edp_have_panel_vdd+0x4e/0x60 [i915]
 intel_pps_have_panel_power_or_vdd+0x80/0x90 [i915]
 intel_dp_hpd_pulse+0xa8/0x530 [i915]
 ? __switch_to+0x114/0x440
 i915_digport_work_func+0xbd/0x160 [i915]
 process_one_work+0x1e5/0x3b0
 worker_thread+0x50/0x3a0
 ? rescuer_thread+0x370/0x370
 kthread+0xe8/0x110
 ? kthread_complete_and_exit+0x20/0x20
 ret_from_fork+0x22/0x30
 </TASK>

WARNING: CPU: 7 PID: 466 at drivers/gpu/drm/drm_vblank.c:1269 drm_wait_one_vblank+0x1b9/0x1d0 [drm]
Modules linked in: r8153_ecm cdc_ether usbnet r8152 mii nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_tables ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nfnetlink ebtable_filter ebtables overlay ip6table_filter ip6_tables iptable_filter bnep sunrpc vfat fat squashfs loop iwlmvm snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc intel_tcc_cooling snd_soc_sst_dsp mac80211 snd_soc_acpi_intel_match snd_hda_codec_hdmi snd_soc_acpi x86_pkg_temp_thermal intel_powerclamp snd_ctl_led snd_soc_core coretemp snd_hda_codec_conexant snd_hda_codec_generic ledtrig_audio snd_compress iTCO_wdt kvm_intel ac97_bus intel_pmc_bxt snd_pcm_dmaengine mei_hdcp mei_wdt mei_pxp ee1004
 iTCO_vendor_support intel_rapl_msr snd_hda_intel libarc4 snd_intel_dspcfg kvm snd_intel_sdw_acpi irqbypass iwlwifi snd_hda_codec rapl snd_usb_audio iwlmei btusb intel_cstate snd_hda_core hp_wmi snd_usbmidi_lib sparse_keymap intel_uncore btrtl pcspkr intel_wmi_thunderbolt platform_profile snd_hwdep snd_rawmidi cfg80211 i2c_i801 btbcm wmi_bmof snd_seq i2c_smbus btintel uvcvideo snd_seq_device mei_me videobuf2_vmalloc videobuf2_memops snd_pcm btmtk videobuf2_v4l2 mei videobuf2_common bluetooth snd_timer videodev joydev snd processor_thermal_device_pci_legacy mc processor_thermal_device soundcore processor_thermal_rfim ecdh_generic processor_thermal_mbox processor_thermal_rapl rfkill intel_pch_thermal idma64 intel_rapl_common intel_xhci_usb_role_switch intel_soc_dts_iosf int3403_thermal int3400_thermal int340x_thermal_zone acpi_thermal_rel acpi_pad wireless_hotkey zram ip_tables i915 i2c_algo_bit drm_kms_helper cec ttm hid_multitouch nvme ucsi_acpi crct10dif_pclmul crc32_pclmul
 crc32c_intel ghash_clmulni_intel typec_ucsi serio_raw nvme_core e1000e drm i2c_hid_acpi typec wmi i2c_hid video pinctrl_sunrisepoint ipmi_devintf ipmi_msghandler fuse
CPU: 7 PID: 466 Comm: kworker/7:2 Tainted: G        W         5.17.12-100.fc34.x86_64 #1
Hardware name: HP HP EliteBook 850 G5/83B2, BIOS Q78 Ver. 01.06.00 01/03/2019
Workqueue: events i915_hotplug_work_func [i915]
RIP: 0010:drm_wait_one_vblank+0x1b9/0x1d0 [drm]
Code: fe ff ff 48 8b 7d 08 4c 8b 6f 50 4d 85 ed 74 26 e8 dc 6a 49 ea 44 89 e1 4c 89 ea 48 c7 c7 18 d0 3e c0 48 89 c6 e8 27 f4 88 ea <0f> 0b e9 9c fe ff ff 4c 8b 2f eb 98 4c 8b 2f eb d5 66 0f 1f 44 00
RSP: 0018:ffffb365806e7cb8 EFLAGS: 00010296
RAX: 0000000000000032 RBX: 0000000000000380 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffffab63f1f5 RDI: 00000000ffffffff
RBP: ffff928b0f5a0000 R08: 0000000000000000 R09: ffffb365806e7af8
R10: ffffb365806e7af0 R11: ffffffffabf455c8 R12: 0000000000000001
R13: ffff928b01a53b00 R14: ffff928b09dfed60 R15: ffff928b3117e000
FS:  0000000000000000(0000) GS:ffff92923f7c0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563ff8d74000 CR3: 00000004b2e10004 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ? do_wait_intr_irq+0xa0/0xa0
 intel_dp_retrain_link+0x3f9/0x450 [i915]
 intel_ddi_hotplug+0x98/0x420 [i915]
 ? preempt_count_add+0x4a/0xa0
 i915_hotplug_work_func+0x1a6/0x280 [i915]
 process_one_work+0x1e5/0x3b0
 ? rescuer_thread+0x370/0x370
 worker_thread+0x1ef/0x3a0
 ? rescuer_thread+0x370/0x370
 kthread+0xe8/0x110
 ? kthread_complete_and_exit+0x20/0x20
 ret_from_fork+0x22/0x30
 </TASK>