Backtrace

WARNING: CPU: 2 PID: 21 at drivers/net/wireless/mediatek/mt7601u/dma.c:307 mt7601u_dma_enqueue_tx+0x21b/0x240 [mt7601u]
Modules linked in: mmc_block ccm uinput rfcomm xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ftp xt_CT ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute tun ip6table_nat ip6table_mangle bridge ip6table_raw ip6table_security stp llc iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) cmac bnep sunrpc squashfs loop mt7601u btusb mac80211 btrtl btbcm btintel bluetooth uvcvideo cfg80211 videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common ecdh_generic ecc videodev edac_mce_amd libarc4 mc ccp kvm snd_hda_codec_conexant snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec irqbypass snd_hda_core snd_hwdep joydev snd_seq
 snd_seq_device pcspkr wmi_bmof sp5100_tco snd_pcm k10temp i2c_piix4 thinkpad_acpi snd_timer ledtrig_audio snd soundcore rfkill acpi_cpufreq binfmt_misc ip_tables radeon rtsx_pci_sdmmc mmc_core i2c_algo_bit drm_kms_helper cec crct10dif_pclmul ttm crc32_pclmul crc32c_intel drm ghash_clmulni_intel serio_raw r8169 rtsx_pci wmi video fuse
CPU: 2 PID: 21 Comm: ksoftirqd/2 Tainted: G        W IOE     5.8.18-100.fc31.x86_64 #1
Hardware name: LENOVO 32605BG/32605BG, BIOS HHET32WW (1.07 ) 06/01/2012
RIP: 0010:mt7601u_dma_enqueue_tx+0x21b/0x240 [mt7601u]
Code: e8 3a 4f f3 ce 85 c0 75 38 41 8b 55 74 41 8b 85 b8 00 00 00 85 d2 75 27 01 d8 41 01 5d 70 41 89 85 b8 00 00 00 e9 59 fe ff ff <0f> 0b 4c 89 c6 4c 89 ff 41 be e4 ff ff ff e8 92 dc 0f cf eb a5 0f
RSP: 0018:ffffa68f400ffa40 EFLAGS: 00010046
RAX: 0000000000000040 RBX: 00000000c0028200 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff8f8c55f3e534
Code: e8 3a 4f f3 ce 85 c0 75 38 41 8b 55 74 41 8b 85 b8 00 00 00 85 d2 75 27 01 d8 41 01 5d 70 41 89 85 b8 00 00 00 e9 59 fe ff ff <0f> 0b 4c 89 c6 4c 89 ff 41 be e4 ff ff ff e8 92 dc 0f cf eb a5 0f
RSP: 0018:ffffa68f400ffa40 EFLAGS: 00010046
 ? csum_partial+0xd/0x20
 snd_seq_device pcspkr wmi_bmof sp5100_tco snd_pcm k10temp i2c_piix4 thinkpad_acpi snd_timer ledtrig_audio snd soundcore rfkill acpi_cpufreq binfmt_misc ip_tables radeon rtsx_pci_sdmmc mmc_core i2c_algo_bit drm_kms_helper cec crct10dif_pclmul ttm crc32_pclmul crc32c_intel drm ghash_clmulni_intel serio_raw r8169 rtsx_pci wmi video fuse
 snd_seq_device pcspkr wmi_bmof sp5100_tco snd_pcm k10temp i2c_piix4 thinkpad_acpi snd_timer ledtrig_audio snd soundcore rfkill acpi_cpufreq binfmt_misc ip_tables radeon rtsx_pci_sdmmc mmc_core i2c_algo_bit drm_kms_helper cec crct10dif_pclmul ttm crc32_pclmul crc32c_intel drm ghash_clmulni_intel serio_raw r8169 rtsx_pci wmi video fuse
 snd_seq_device pcspkr wmi_bmof sp5100_tco snd_pcm k10temp i2c_piix4 thinkpad_acpi snd_timer ledtrig_audio snd soundcore rfkill acpi_cpufreq binfmt_misc ip_tables radeon rtsx_pci_sdmmc mmc_core i2c_algo_bit drm_kms_helper cec crct10dif_pclmul ttm crc32_pclmul crc32c_intel drm ghash_clmulni_intel serio_raw r8169 rtsx_pci wmi video fuse
CPU: 2 PID: 21 Comm: ksoftirqd/2 Tainted: G        W IOE     5.8.18-100.fc31.x86_64 #1
 snd_seq_device pcspkr wmi_bmof sp5100_tco snd_pcm k10temp i2c_piix4 thinkpad_acpi snd_timer ledtrig_audio snd soundcore rfkill acpi_cpufreq binfmt_misc ip_tables radeon rtsx_pci_sdmmc mmc_core i2c_algo_bit drm_kms_helper cec crct10dif_pclmul ttm crc32_pclmul crc32c_intel drm ghash_clmulni_intel serio_raw r8169 rtsx_pci wmi video fuse
CPU: 2 PID: 21 Comm: ksoftirqd/2 Tainted: G        W IOE     5.8.18-100.fc31.x86_64 #1
Hardware name: LENOVO 32605BG/32605BG, BIOS HHET32WW (1.07 ) 06/01/2012
Code: e8 3a 4f f3 ce 85 c0 75 38 41 8b 55 74 41 8b 85 b8 00 00 00 85 d2 75 27 01 d8 41 01 5d 70 41 89 85 b8 00 00 00 e9 59 fe ff ff <0f> 0b 4c 89 c6 4c 89 ff 41 be e4 ff ff ff e8 92 dc 0f cf eb a5 0f
 snd_seq_device pcspkr wmi_bmof sp5100_tco snd_pcm k10temp i2c_piix4 thinkpad_acpi snd_timer ledtrig_audio snd soundcore rfkill acpi_cpufreq binfmt_misc ip_tables radeon rtsx_pci_sdmmc mmc_core i2c_algo_bit drm_kms_helper cec crct10dif_pclmul ttm crc32_pclmul crc32c_intel drm ghash_clmulni_intel serio_raw r8169 rtsx_pci wmi video fuse
RSP: 0018:ffffa68f400ffa40 EFLAGS: 00010046
 snd_seq_device pcspkr wmi_bmof sp5100_tco snd_pcm k10temp i2c_piix4 thinkpad_acpi snd_timer ledtrig_audio snd soundcore rfkill acpi_cpufreq binfmt_misc ip_tables radeon rtsx_pci_sdmmc mmc_core i2c_algo_bit drm_kms_helper cec crct10dif_pclmul ttm crc32_pclmul crc32c_intel drm ghash_clmulni_intel serio_raw r8169 rtsx_pci wmi video fuse
RSP: 0018:ffffa68f400ffa40 EFLAGS: 00010046
 snd_seq_device pcspkr wmi_bmof sp5100_tco snd_pcm k10temp i2c_piix4 thinkpad_acpi snd_timer ledtrig_audio snd soundcore rfkill acpi_cpufreq binfmt_misc ip_tables radeon rtsx_pci_sdmmc mmc_core i2c_algo_bit drm_kms_helper cec crct10dif_pclmul ttm crc32_pclmul crc32c_intel drm ghash_clmulni_intel serio_raw r8169 rtsx_pci wmi video fuse
RSP: 0018:ffffa68f400ffa40 EFLAGS: 00010046
RBP: ffff8f8c55f3dea0 R08: 0000000000000282 R09: ffff8f8bc92a68b9
RSP: 0018:ffffa68f400ffa40 EFLAGS: 00010046
 ? sort_range+0x20/0x20
RSP: 0018:ffffa68f400ffa40 EFLAGS: 00010046
 ret_from_fork+0x22/0x30
RSP: 0018:ffffa68f400ffa40 EFLAGS: 00010046
Call Trace:
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 ? netif_skb_features+0x112/0x280
 kthread+0xfe/0x140
 smpboot_thread_fn+0xc5/0x160
 ? sort_range+0x20/0x20
 ? sort_range+0x20/0x20
 run_ksoftirqd+0x26/0x40
 ? sort_range+0x20/0x20
 ? kthread_park+0x90/0x90