USB3 to ethernet adapter stops working (ax88179)

Following trace is also obtained:

[18818.672366] ------------[ cut here ]------------
[18818.672374] NETDEV WATCHDOG: enxf8e43b7bdd6c (ax88179_178a): transmit queue 0 timed out
[18818.672422] WARNING: CPU: 3 PID: 38259 at net/sched/sch_generic.c:529 dev_watchdog+0x21f/0x230
[18818.672437] Modules linked in: cdc_mbim cdc_wdm cdc_ncm cdc_ether tls snd_seq_dummy ccm nft_masq nft_chain_nat nf_nat nvme_fabrics bridge stp llc zfs(PO) zunicode(PO) zzstd(O) zlua(O) zavl(PO) icp(PO) zcommon(PO) znvpair(PO) spl(O) vhost_vsock vmw_vsock_virtio_transport_common vhost vhost_iotlb vsock rfcomm vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) ip6t_REJECT nf_reject_ipv6 xt_hl ip6_tables ip6t_rt cmac algif_hash algif_skcipher af_alg bnep ipt_REJECT nf_reject_ipv4 xt_LOG nf_log_syslog xt_comment xt_recent xt_multiport nft_limit xt_limit xt_addrtype xt_tcpudp xt_conntrack nf_conntrack snd_hda_codec_hdmi nf_defrag_ipv6 snd_sof_pci_intel_cnl nf_defrag_ipv4 snd_sof_intel_hda_common nft_compat soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof snd_sof_utils snd_soc_hdac_hda snd_hda_ext_core snd_soc_acpi_intel_match snd_hda_codec_realtek snd_soc_acpi soundwire_bus snd_hda_codec_generic ledtrig_audio snd_soc_core
[18818.672556] snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel snd_intel_dspcfg intel_rapl_msr snd_intel_sdw_acpi intel_rapl_common snd_hda_codec intel_tcc_cooling nf_tables snd_hda_core x86_pkg_temp_thermal intel_powerclamp btusb coretemp nfnetlink binfmt_misc snd_hwdep btrtl snd_pcm btbcm iwlmvm uvcvideo btintel kvm_intel snd_seq_midi btmtk mei_hdcp mei_pxp snd_seq_midi_event mac80211 videobuf2_vmalloc kvm libarc4 snd_rawmidi videobuf2_memops bluetooth videobuf2_v4l2 snd_seq videobuf2_common rapl snd_seq_device videodev ecdh_generic intel_cstate nls_iso8859_1 snd_timer input_leds mc joydev ecc iwlwifi snd cmdlinepart serio_raw intel_wmi_thunderbolt spi_nor mei_me mtd cfg80211 soundcore mei intel_pch_thermal intel_hid mac_hid sparse_keymap acpi_pad sch_fq_codel msr parport_pc ppdev lp parport ramoops reed_solomon pstore_blk pstore_zone efi_pstore ip_tables x_tables autofs4 btrfs blake2b_generic xor raid6_pq libcrc32c hid_generic usbhid hid ax88179_178a usbnet mii i915 drm_buddy
[18818.672677] i2c_algo_bit ttm drm_display_helper cec rc_core drm_kms_helper syscopyarea sysfillrect sysimgblt rtsx_pci_sdmmc nvme i2c_i801 spi_intel_pci fb_sys_fops crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel crypto_simd cryptd xhci_pci psmouse nvme_core r8169 i2c_smbus spi_intel realtek thunderbolt rtsx_pci drm ahci libahci xhci_pci_renesas wmi video
[18818.672720] CPU: 3 PID: 38259 Comm: skypeforlinux Tainted: P OE 5.19.0-35-generic #36~22.04.1-Ubuntu
[18818.672726] Hardware name: SCHENKER SCHENKER_SLIM14_SSL14L19/N141CU , BIOS 1.07.04RTR1 10/02/2019
[18818.672729] RIP: 0010:dev_watchdog+0x21f/0x230
[18818.672738] Code: 00 e9 31 ff ff ff 4c 89 e7 c6 05 ef ac 70 01 01 e8 c6 9d f8 ff 44 89 f1 4c 89 e6 48 c7 c7 a8 da d0 b0 48 89 c2 e8 89 e3 1b 00 <0f> 0b e9 22 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00
[18818.672741] RSP: 0000:ffffa020869bbdb0 EF...

I encountered the same issue with an Anker USB-C hub+ethernet using the same chipset:

root@ratchett:~# ethtool -i enxa0cec86958e9
driver: ax88179_178a
version: 5.19.0-35-generic
firmware-version:
expansion-rom-version:
bus-info: 2-1.4:1.0
supports-statistics: no
supports-test: no
supports-eeprom-access: yes
supports-register-dump: no
supports-priv-flags: no

Hunting around led me to an upstream kernel bug report: https://bugzilla.kernel.org/show_bug.cgi?id=212731

One of the comments in there notes that there's an out-of-band fix at https://github.com/nothingstopsme/AX88179_178A_Linux_Driver

Using that does seem to have resolved the issue for me - I've chucked some fairly heavy workloads across the network without issue, whereas before starting a simple video call would kill the adapter.

Installation steps are:

git clone https://github.com/nothingstopsme/AX88179_178A_Linux_Driver.git
cd AX88179_178A_Linux_Driver/source
make
sudo make install
sudo reboot

Just a quick note to inform that the issue is also present with the ubuntu 6.1.0-1008-oem kernel which should be extra close to the tip of mainline. Thus, the issue is most likely still present in mainline.