Backtrace

WARNING: CPU: 3 PID: 155 at kernel/workqueue.c:2598 check_flush_dependency+0xa0/0x130
Modules linked in: uas usb_storage rfcomm ccm 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 libcrc32c ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter tun cmac bnep sunrpc vfat fat snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core intel_rapl_msr intel_rapl_common snd_soc_skl_ipc x86_pkg_temp_thermal snd_soc_sst_ipc intel_powerclamp coretemp kvm_intel snd_soc_sst_dsp snd_soc_acpi_intel_match kvm irqbypass snd_soc_acpi snd_soc_core snd_hda_codec_hdmi snd_compress ac97_bus snd_pcm_dmaengine rtsx_usb_ms iwlmvm snd_hda_codec_realtek snd_hda_codec_generic memstick crct10dif_pclmul snd_hda_intel crc32_pclmul mac80211 ghash_clmulni_intel btusb btrtl snd_hda_codec btbcm btintel
 snd_hda_core libarc4 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common snd_hwdep videodev mc snd_seq intel_cstate bluetooth dell_laptop mei_hdcp ledtrig_audio iTCO_wdt iTCO_vendor_support snd_seq_device dell_wmi iwlwifi intel_uncore dell_smbios hid_multitouch snd_pcm joydev sparse_keymap dcdbas dell_wmi_descriptor wmi_bmof ecdh_generic intel_rapl_perf ecc dell_smm_hwmon snd_timer snd cfg80211 idma64 soundcore mei_me intel_lpss_pci mei intel_xhci_usb_role_switch intel_lpss i2c_i801 roles intel_pch_thermal dell_rbtn acpi_pad rfkill ip_tables amdgpu amd_iommu_v2 gpu_sched i915 radeon rtsx_usb_sdmmc mmc_core ttm i2c_algo_bit drm_kms_helper crc32c_intel drm serio_raw r8169 rtsx_usb wmi i2c_hid pinctrl_sunrisepoint pinctrl_intel video fuse
CPU: 3 PID: 155 Comm: kswapd0 Not tainted 5.3.7-301.fc31.x86_64 #1
Hardware name: Dell Inc. Inspiron 5559/04D1V1, BIOS 1.4.1 12/08/2017
RIP: 0010:check_flush_dependency+0xa0/0x130
Code: 8d 8a 18 07 00 00 49 89 e8 48 8d 8b b0 00 00 00 4c 89 ca 48 c7 c7 28 0c 13 af 48 89 04 24 c6 05 83 2c 44 01 01 e8 9e 2b fe ff <0f> 0b 48 8b 04 24 eb 10 4c 89 e7 e8 80 81 00 00 41 f6 44 24 25 08
RSP: 0018:ffffa9a5801d38d0 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffff9765b980ae00 RCX: 0000000000000000
RDX: 0000000000000063 RSI: ffffffffafbe7883 RDI: 0000000000000046
RBP: ffffffffc06d4780 R08: 00002a38cc2b972d R09: 0000000000000063
R10: ffffffffafbe7c00 R11: 00000000afbe786b R12: ffff9765b9335f40
R13: ffff9765baaad700 R14: 0000000000000001 R15: 0000000000000013
FS:  0000000000000000(0000) GS:ffff9765bab80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005651fe842dd0 CR3: 000000014340a003 CR4: 00000000003606e0
Call Trace:
 __flush_work+0x92/0x1c0
 ? __schedule+0x14d/0x680
 __cancel_work_timer+0x107/0x190
 ? _cond_resched+0x1d/0x30
 ? synchronize_irq+0x3a/0xa0
 ? fwtable_write32+0x1a0/0x210 [i915]
 gen6_disable_rps_interrupts+0x7f/0xa0 [i915]
 gen6_rps_idle+0x1a/0xe0 [i915]
 intel_gt_park+0x54/0x60 [i915]
 __intel_wakeref_put_last+0x17/0x50 [i915]
 __engine_park+0xbc/0xd0 [i915]
 __intel_wakeref_put_last+0x17/0x50 [i915]
 i915_request_retire+0x1aa/0x370 [i915]
 ring_retire_requests+0x4e/0x60 [i915]
 i915_retire_requests+0x43/0x80 [i915]
 i915_gem_shrink+0x355/0x510 [i915]
 i915_gem_shrinker_scan+0x63/0x110 [i915]
 do_shrink_slab+0x154/0x2c0
 shrink_slab+0xac/0x2b0
 shrink_node+0xf5/0x490
 balance_pgdat+0x2db/0x530
 kswapd+0x1fb/0x3c0
 ? finish_wait+0x80/0x80
 kthread+0xfb/0x130
 ? balance_pgdat+0x530/0x530
 ? kthread_park+0x80/0x80
 ret_from_fork+0x35/0x40