Backtrace

WARNING: CPU: 3 PID: 154 at kernel/workqueue.c:2598 check_flush_dependency+0xa0/0x130
Modules linked in: rfcomm tun 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 ccm ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat ath9k ath9k_common ath9k_hw mac80211 x86_pkg_temp_thermal intel_powerclamp coretemp ath3k kvm_intel btusb kvm snd_hda_codec_conexant btrtl uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev btbcm snd_hda_codec_generic mc ledtrig_audio irqbypass snd_hda_codec_hdmi btintel snd_hda_intel snd_hda_codec ath bluetooth snd_hda_core crct10dif_pclmul cfg80211 crc32_pclmul snd_hwdep snd_seq ecdh_generic ghash_clmulni_intel ecc intel_rapl_msr mei_hdcp iTCO_wdt iTCO_vendor_support
 intel_cstate intel_uncore snd_seq_device asus_nb_wmi libarc4 intel_rapl_perf asus_wmi sparse_keymap rfkill snd_pcm snd_timer joydev snd ak8975 soundcore inv_mpu6050_i2c inv_mpu6050 industrialio_triggered_buffer kfifo_buf i2c_mux mei_me industrialio i2c_i801 processor_thermal_device mei intel_rapl_common lpc_ich int340x_thermal_zone intel_pch_thermal intel_soc_dts_iosf acpi_pad int3400_thermal acpi_thermal_rel asus_wireless binfmt_misc ip_tables i915 i2c_algo_bit drm_kms_helper crc32c_intel drm serio_raw r8169 wmi video i2c_hid fuse
CPU: 3 PID: 154 Comm: kswapd0 Not tainted 5.3.7-301.fc31.x86_64 #1
Hardware name: ASUSTeK COMPUTER INC. X455LAB/X455LAB, BIOS X455LAB.300 08/03/2016
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 9b 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:ffffc169001d38d0 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffffa0e65a00ae00 RCX: 0000000000000000
RDX: 0000000000000063 RSI: ffffffff9bbe7883 RDI: 0000000000000046
RBP: ffffffffc03b6780 R08: 00000208fc06d631 R09: 0000000000000063
R10: ffffffff9bbe7c00 R11: 000000009bbe786b R12: ffffa0e659545dc0
R13: ffffa0e65aa2d700 R14: 0000000000000001 R15: 0000000000000013
FS:  0000000000000000(0000) GS:ffffa0e65ab80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8b05782000 CR3: 00000000992f0006 CR4: 00000000003606e0
Call Trace:
 __flush_work+0x92/0x1c0
 __cancel_work_timer+0x107/0x190
 ? _cond_resched+0x15/0x30
 ? synchronize_irq+0x3a/0xa0
 ? gen8_write32+0x197/0x200 [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