Ow great, I have the same issue with a Pi 4. I've just put it as my main router. It happened overnight, network just stopped working.
[60085.850094] ------------[ cut here ]------------ [60085.850135] NETDEV WATCHDOG: enx000ec6c38af4 (ax88179_178a): transmit queue 0 timed out [60085.850210] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:477 dev_watchdog+0x3b4/0x3d0 [60085.850249] Modules linked in: tls cmac algif_hash algif_skcipher af_alg bnep hci_uart btqca btrtl btbcm btintel pppoe pppox nft_chain_nat xt_MASQUERADE nf_nat xt_state xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_counter xt_TCPMSS xt_tcpmss xt_tcpudp nft_compat nf_tables nfnetlink binfmt_misc btsdio bluetooth ecdh_generic ecc brcmfmac brcmutil cfg80211 bcm2835_codec(CE) raspberrypi_hwmon bcm2835_v4l2(CE) bcm2835_isp(CE) v4l2_mem2mem bcm2835_mmal_vchiq(CE) videobuf2_vmalloc videobuf2_dma_contig videobuf2_memops snd_bcm2835(CE) videobuf2_v4l2 videobuf2_common snd_pcm videodev snd_timer mc snd bcm2835_gpiomem vc_sm_cma(CE) rpivid_mem nvmem_rmem uio_pdrv_genirq uio sch_fq_codel drm efi_pstore ip_tables x_tables autofs4 btrfs blake2b_generic zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq libcrc32c raid1 raid0 multipath linear ax88179_178a spidev dwc2 crct10dif_ce roles spi_bcm2835 udc_core i2c_bcm2835 xhci_pci [60085.850677] xhci_pci_renesas phy_generic aes_arm64 [60085.850701] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G C E 5.15.0-1079-raspi #82-Ubuntu [60085.850715] Hardware name: Raspberry Pi 4 Model B Rev 1.1 (DT) [60085.850722] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [60085.850735] pc : dev_watchdog+0x3b4/0x3d0 [60085.850751] lr : dev_watchdog+0x3b4/0x3d0 [60085.850765] sp : ffff800008003d20 [60085.850771] x29: ffff800008003d20 x28: 0000000000000001 x27: 0000000000000004 [60085.850794] x26: ffffa17b98b3b000 x25: ffff57e4c10444c0 x24: 0000000000000000 [60085.850815] x23: ffff57e4c104441c x22: ffffa17b988f6000 x21: 0000000000000000 [60085.850835] x20: ffff57e4c1044000 x19: ffffa17b98b16140 x18: 0000000000000000 [60085.850854] x17: 2065756575712074 x16: 696d736e61727420 x15: 3a29613837315f39 [60085.850874] x14: 3731383878612820 x13: 74756f2064656d69 x12: 7420302065756575 [60085.850894] x11: 712074696d736e61 x10: 7274203a29613837 x9 : ffffa17b971354c4 [60085.850913] x8 : 65303030786e6520 x7 : 0000000000000003 x6 : 0000000000000000 [60085.850932] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000100 [60085.850951] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffffa17b98907900 [60085.850971] Call trace: [60085.850977] dev_watchdog+0x3b4/0x3d0 [60085.850993] call_timer_fn+0x3c/0x1f0 [60085.851010] __run_timers.part.0+0x234/0x340 [60085.851024] run_timer_softirq+0x44/0x80 [60085.851037] handle_softirqs+0x1b4/0x530 [60085.851052] irq_exit+0xd8/0x110 [60085.851065] handle_domain_irq+0x60/0x90 [60085.851078] gic_handle_irq+0x54/0xe0 [60085.851088] call_on_irq_stack+0x20/0x48 [60085.851101] do_interrupt_handler+0x5c/0x70 [60085.851115] el1_interrupt+0x30/0xa0 [60085.851127] el1h_64_irq_handler+0x18/0x2c [60085.851137] el1h_64_irq+0x7c/0x80 [60085.851147] arch_cpu_idle+0x18/0x3c [60085.851158] default_idle_call+0x4c/0x1c8 [60085.851172] cpuidle_idle_call+0x164/0x1d4 [60085.851186] do_idle+0xdc/0x11c [60085.851199] cpu_startup_entry+0x2c/0x7c [60085.851212] rest_init+0x100/0x130 [60085.851222] arch_call_rest_init+0x18/0x24 [60085.851235] start_kernel+0x4cc/0x504 [60085.851244] __primary_switched+0xbc/0xc4 [60085.851256] ---[ end trace 23cfff0e09119161 ]--- [60085.861215] xhci_hcd 0000:01:00.0: WARN Successful completion on short TX [60085.861248] xhci_hcd 0000:01:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 5 comp_code 1 [60085.871681] xhci_hcd 0000:01:00.0: Looking for event-dma 0000000426476760 trb-start 0000000426476cc0 trb-end 0000000426476cd0 seg-start 0000000426476000 seg-end 0000000426476ff0 [60085.871689] xhci_hcd 0000:01:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 5 comp_code 1 [60085.882099] xhci_hcd 0000:01:00.0: Looking for event-dma 0000000426476780 trb-start 0000000426476cc0 trb-end 0000000426476cd0 seg-start 0000000426476000 seg-end 0000000426476ff0 [60085.882183] xhci_hcd 0000:01:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 5 comp_code 1 [60085.892602] xhci_hcd 0000:01:00.0: Looking for event-dma 00000004264767a0 trb-start 0000000426476cc0 trb-end 0000000426476cd0 seg-start 0000000426476000 seg-end 0000000426476ff0 [60085.892659] xhci_hcd 0000:01:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 5 comp_code 1 [60085.903076] xhci_hcd 0000:01:00.0: Looking for event-dma 00000004264767c0 trb-start 0000000426476cc0 trb-end 0000000426476cd0 seg-start 0000000426476000 seg-end 0000000426476ff0 [60085.903083] xhci_hcd 0000:01:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 5 comp_code 1 [60085.913490] xhci_hcd 0000:01:00.0: Looking for event-dma 00000004264767e0 trb-start 0000000426476cc0 trb-end 0000000426476cd0 seg-start 0000000426476000 seg-end 0000000426476ff0 [60085.913496] xhci_hcd 0000:01:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 5 comp_code 1 [60085.923903] xhci_hcd 0000:01:00.0: Looking for event-dma 0000000426476800 trb-start 0000000426476cc0 trb-end 0000000426476cd0 seg-start 0000000426476000 seg-end 0000000426476ff0 [60085.924071] xhci_hcd 0000:01:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 5 comp_code 1 [60085.934496] xhci_hcd 0000:01:00.0: Looking for event-dma 0000000426476820 trb-start 0000000426476cc0 trb-end 0000000426476cd0 seg-start 0000000426476000 seg-end 0000000426476ff0 [117915.591982] xhci_hcd 0000:01:00.0: WARN Successful completion on short TX -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1953554 Title: NETDEV WATCHDOG: waneth (ax88179_178a): transmit queue 0 timed out To manage notifications about 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