Backtrace

WARNING: CPU: 6 PID: 1860 at drivers/gpu/drm/i915/display/intel_cdclk.c:850 skl_get_cdclk+0x26c/0x2a0 [i915]
Modules linked in: uinput snd_seq_dummy snd_hrtimer rfcomm 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 typec_displayport cmac bnep sunrpc vfat fat snd_hda_codec_hdmi snd_soc_skl dell_rbtn snd_soc_hdac_hda snd_hda_ext_core snd_hda_codec_realtek snd_soc_sst_ipc snd_hda_codec_generic snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi x86_pkg_temp_thermal intel_powerclamp snd_hda_intel coretemp snd_intel_dspcfg soundwire_intel dell_laptop soundwire_generic_allocation iwlmvm snd_soc_core iTCO_wdt snd_compress ledtrig_audio intel_pmc_bxt kvm_intel snd_pcm_dmaengine ee1004 iTCO_vendor_support mei_wdt
 soundwire_cadence mei_hdcp intel_rapl_msr mac80211 snd_usb_audio dell_smm_hwmon kvm snd_hda_codec libarc4 irqbypass btusb dell_wmi snd_hda_core rapl snd_usbmidi_lib dell_smbios btrtl intel_cstate ac97_bus snd_rawmidi iwlwifi snd_hwdep btbcm dcdbas intel_uncore uvcvideo btintel snd_seq i2c_i801 wmi_bmof videobuf2_vmalloc dell_wmi_descriptor intel_wmi_thunderbolt pcspkr videobuf2_memops i2c_smbus bluetooth snd_seq_device cfg80211 snd_pcm videobuf2_v4l2 snd_timer videobuf2_common processor_thermal_device snd videodev processor_thermal_rfim ecdh_generic processor_thermal_mbox rfkill soundcore mei_me processor_thermal_rapl ucsi_acpi mei intel_rapl_common joydev typec_ucsi intel_xhci_usb_role_switch mc ecc idma64 roles intel_soc_dts_iosf typec intel_pch_thermal intel_hid int3403_thermal int340x_thermal_zone int3400_thermal sparse_keymap acpi_pad acpi_thermal_rel zram ip_tables hid_glorious hid_cmedia r8152 mii i915 hid_multitouch rtsx_pci_sdmmc i2c_algo_bit mmc_core
 drm_kms_helper crct10dif_pclmul cec crc32_pclmul crc32c_intel drm e1000e ghash_clmulni_intel serio_raw rtsx_pci wmi i2c_hid video fuse
CPU: 6 PID: 1860 Comm: gnome-shell Not tainted 5.11.12-300.fc34.x86_64 #1
Hardware name: Dell Inc. Latitude 7390/09386V, BIOS 1.3.3 03/14/2018
RIP: 0010:skl_get_cdclk+0x26c/0x2a0 [i915]
Code: 8b 7d 18 4c 8b 6f 50 4d 85 ed 74 36 e8 fd 3c 26 f9 48 c7 c1 68 70 66 c0 4c 89 ea 48 c7 c7 b0 d2 68 c0 48 89 c6 e8 03 39 60 f9 <0f> 0b 8b 53 04 e9 31 fe ff ff ba 5b b5 04 00 31 c0 89 13 e9 2f ff
RSP: 0018:ffffb8aa41e5f9f8 EFLAGS: 00010292
RAX: 0000000000000036 RBX: ffffb8aa41e5fa24 RCX: 0000000000000027
RDX: ffff99a6ee598ac8 RSI: 0000000000000001 RDI: ffff99a6ee598ac0
RBP: ffff99a38a220000 R08: 0000000000000000 R09: ffffb8aa41e5f828
R10: ffffb8aa41e5f820 R11: ffffffffbab44f08 R12: ffff99a38a220808
R13: ffff99a3817d75e0 R14: ffff99a38a226720 R15: ffff99a38a226cf0
FS:  00007fdaa4255d80(0000) GS:ffff99a6ee580000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2a380b2000 CR3: 00000001551ca005 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 gen9_disable_dc_states+0x57/0x240 [i915]
 __intel_display_power_get_domain.part.0+0x94/0xb0 [i915]
 intel_display_power_get+0x95/0xc0 [i915]
 __gt_unpark+0x2c/0x70 [i915]
 __intel_wakeref_get_first+0x3b/0x80 [i915]
 i915_gem_do_execbuffer+0x18be/0x1e40 [i915]
 ? sock_def_readable+0x37/0x70
 ? unix_stream_sendmsg+0x448/0x480
 ? __pollwait+0xd0/0xd0
 i915_gem_execbuffer2_ioctl+0xf1/0x200 [i915]
 ? i915_gem_execbuffer_ioctl+0x2a0/0x2a0 [i915]
 drm_ioctl_kernel+0x86/0xd0 [drm]
 drm_ioctl+0x20f/0x3c0 [drm]
 ? i915_gem_execbuffer_ioctl+0x2a0/0x2a0 [i915]
 __x64_sys_ioctl+0x82/0xb0
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fdaa83c14eb
Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 55 b9 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffc3a0ac678 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00005589ad723668 RCX: 00007fdaa83c14eb
RDX: 00007ffc3a0ac690 RSI: 0000000040406469 RDI: 0000000000000010
RBP: 00007ffc3a0ac720 R08: 0000000000000020 R09: 0000000000005021
R10: 0000000000001021 R11: 0000000000000246 R12: 00007fdaa2157ce0
R13: 0000000000000000 R14: 00007ffc3a0ac690 R15: 0000000000000010