Sorry, got kinda stuck trying to test with a USB NIC: https://askubuntu.com/q/1212529/325336
After disabling systemd-resolved (+ putting a public DNS IPv4 address in resolv.conf), v6 download over the external USB NIC (Apple USB Ethernet, 05ac:1402) works fine. After switching the cable back to the built-in NIC, the error appeared almost immediately, didn't even get to try the v6 download. [ 2452.471188] br0: port 3(eth1) entered disabled state [ 3030.723594] br0: received packet on wlan0 with own address as source address (addr:b8:27:eb:3a:ba:a2, vlan:0) [ 3030.860954] br0: received packet on wlan0 with own address as source address (addr:b8:27:eb:3a:ba:a2, vlan:0) [ 3037.463785] br0: received packet on wlan0 with own address as source address (addr:b8:27:eb:3a:ba:a2, vlan:0) [ 3228.800706] asix 1-1.3:1.0 eth1: link up, 100Mbps, full-duplex, lpa 0xCDE1 [ 3228.804385] br0: port 3(eth1) entered blocking state [ 3228.804417] br0: port 3(eth1) entered forwarding state [ 3293.930873] ------------[ cut here ]------------ [ 3293.930958] NETDEV WATCHDOG: eth0 (lan78xx): transmit queue 0 timed out [ 3293.931102] WARNING: CPU: 3 PID: 0 at net/sched/sch_generic.c:447 dev_watchdog+0x324/0x330 [ 3293.931109] Modules linked in: asix sit tunnel4 ip_tunnel bridge stp llc ip6table_filter ip6_tables xt_tcpudp xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_filter bpfilter nls_ascii dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua btsdio bluetooth ecdh_generic bcm2835_v4l2(CE) ecc bcm2835_mmal_vchiq(CE) vc_sm_cma(CE) brcmfmac v4l2_common videobuf2_vmalloc brcmutil videobuf2_memops videobuf2_v4l2 cfg80211 videobuf2_common input_leds videodev mc spidev raspberrypi_hwmon uio_pdrv_genirq uio sch_fq_codel ip_tables x_tables autofs4 btrfs 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 hid_generic usbhid crct10dif_ce sdhci_iproc phy_generic fixed aes_neon_bs aes_neon_blk crypto_simd cryptd aes_arm64 [ 3293.931334] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G C E 5.3.0-1018-raspi2 #20-Ubuntu [ 3293.931339] Hardware name: Raspberry Pi 3 Model B Plus Rev 1.3 (DT) [ 3293.931348] pstate: 60400005 (nZCv daif +PAN -UAO) [ 3293.931356] pc : dev_watchdog+0x324/0x330 [ 3293.931363] lr : dev_watchdog+0x324/0x330 [ 3293.931366] sp : ffff00001001bd60 [ 3293.931371] x29: ffff00001001bd60 x28: 0000000000000140 [ 3293.931380] x27: 00000000ffffffff x26: 0000000000000000 [ 3293.931388] x25: fffff2fb79363000 x24: ffff4f7cab129018 [ 3293.931396] x23: 0000000000000000 x22: 0000000000000001 [ 3293.931404] x21: fffff2fb79363480 x20: ffff4f7cab407000 [ 3293.931412] x19: 0000000000000000 x18: 0000000000000000 [ 3293.931420] x17: ffff000010fd8218 x16: ffff4f7ca9f0f060 [ 3293.931428] x15: fffff2fb79228510 x14: ffffffffffffffff [ 3293.931437] x13: 0000000000000000 x12: ffff4f7cab540000 [ 3293.931445] x11: ffff4f7cab42d000 x10: 0000000000000000 [ 3293.931453] x9 : 0000000000000004 x8 : 0000000000000192 [ 3293.931461] x7 : 0000000000000000 x6 : 0000000000000001 [ 3293.931468] x5 : 0000000000000000 x4 : 0000000000000008 [ 3293.931476] x3 : ffff4f7caaa15750 x2 : 0000000000000004 [ 3293.931484] x1 : 59c84c96ab783c00 x0 : 0000000000000000 [ 3293.931492] Call trace: [ 3293.931500] dev_watchdog+0x324/0x330 [ 3293.931515] call_timer_fn+0x3c/0x178 [ 3293.931525] __run_timers.part.0+0x200/0x330 [ 3293.931533] run_timer_softirq+0x40/0x78 [ 3293.931544] __do_softirq+0x168/0x384 [ 3293.931554] irq_exit+0xb0/0xe8 [ 3293.931564] __handle_domain_irq+0x70/0xc0 [ 3293.931572] bcm2836_arm_irqchip_handle_irq+0x74/0xe0 [ 3293.931579] el1_irq+0x108/0x200 [ 3293.931590] arch_cpu_idle+0x3c/0x1c8 [ 3293.931603] default_idle_call+0x24/0x48 [ 3293.931615] do_idle+0x210/0x2a0 [ 3293.931623] cpu_startup_entry+0x2c/0x30 [ 3293.931636] secondary_start_kernel+0x154/0x1c8 [ 3293.931641] ---[ end trace 356cf2f8b780723e ]--- [ 3734.263219] br0: port 3(eth1) entered disabled state [ 3737.505916] lan78xx 1-1.1.1:1.0 eth0: kevent 0 may have been dropped [ 3737.523763] lan78xx 1-1.1.1:1.0 eth0: kevent 0 may have been dropped [ 3737.541622] lan78xx 1-1.1.1:1.0 eth0: kevent 0 may have been dropped [ 3737.559099] lan78xx 1-1.1.1:1.0 eth0: kevent 0 may have been dropped [ 3737.576635] lan78xx 1-1.1.1:1.0 eth0: kevent 0 may have been dropped [ 3737.593932] lan78xx 1-1.1.1:1.0 eth0: kevent 0 may have been dropped [ 3737.611136] lan78xx 1-1.1.1:1.0 eth0: kevent 0 may have been dropped [ 3737.628048] lan78xx 1-1.1.1:1.0 eth0: kevent 0 may have been dropped ... -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-raspi2 in Ubuntu. https://bugs.launchpad.net/bugs/1861936 Title: Raspberry Pi 3 network dies shortly after a burst of SD card IO and network load ((lan78xx): transmit queue 0 timed out) Status in linux-raspi2 package in Ubuntu: Incomplete Bug description: Raspberry Pi 3 network dies shortly after a burst of SD card IO (writes) and network load. Happened a few times (every time) when I tried to download a gparted zip release (~350 MiB) directly to the SD card, and then finally when I tried to scp the finished download from a desktop onto RPi's card. Didn't collect information when it happened, but kept a copy of kern.log. Here's the relevant part: Feb 4 23:42:59 rpi3 kernel: [ 571.878359] ------------[ cut here ]------------ Feb 4 23:42:59 rpi3 kernel: [ 571.878420] NETDEV WATCHDOG: eth0 (lan78xx): transmit queue 0 timed out Feb 4 23:42:59 rpi3 kernel: [ 571.878550] WARNING: CPU: 3 PID: 0 at net/sched/sch_generic.c:447 dev_watchdog+0x324/0x330 Feb 4 23:42:59 rpi3 kernel: [ 571.878557] Modules linked in: sit tunnel4 ip_tunnel bridge stp llc ip6table_filter ip6_tables xt_tcpudp xt_conntrack nf_conntrack iptable_filter bpfilter nls_ascii dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua btsdio bluetooth ecdh_generic ecc brcmfmac brcmutil cfg80211 bcm2835_v4l2(CE) bcm2835_mmal_vchiq(CE) input_leds vc_sm_cma(CE) v4l2_common videobuf2_vmalloc spidev videobuf2_memops videobuf2_v4l2 raspberrypi_hwmon videobuf2_common videodev mc uio_pdrv_genirq uio sch_fq_codel jool(OE) jool_common(OE) nf_defrag_ipv6 nf_defrag_ipv4 ip_tables x_tables autofs4 btrfs 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 hid_generic usbhid crct10dif_ce sdhci_iproc phy_generic fixed aes_neon_bs aes_neon_blk crypto_simd cryptd aes_arm64 Feb 4 23:42:59 rpi3 kernel: [ 571.878774] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G C OE 5.3.0-1017-raspi2 #19-Ubuntu Feb 4 23:42:59 rpi3 kernel: [ 571.878781] Hardware name: Raspberry Pi 3 Model B Plus Rev 1.3 (DT) Feb 4 23:42:59 rpi3 kernel: [ 571.878789] pstate: 60400005 (nZCv daif +PAN -UAO) Feb 4 23:42:59 rpi3 kernel: [ 571.878800] pc : dev_watchdog+0x324/0x330 Feb 4 23:42:59 rpi3 kernel: [ 571.878807] lr : dev_watchdog+0x324/0x330 Feb 4 23:42:59 rpi3 kernel: [ 571.878812] sp : ffff00001001bd60 Feb 4 23:42:59 rpi3 kernel: [ 571.878817] x29: ffff00001001bd60 x28: 0000000000000140 Feb 4 23:42:59 rpi3 kernel: [ 571.878827] x27: 00000000ffffffff x26: 0000000000000000 Feb 4 23:42:59 rpi3 kernel: [ 571.878836] x25: ffff8ecbefa4e000 x24: ffff305e0f529018 Feb 4 23:42:59 rpi3 kernel: [ 571.878845] x23: 0000000000000000 x22: 0000000000000001 Feb 4 23:42:59 rpi3 kernel: [ 571.878853] x21: ffff8ecbefa4e480 x20: ffff305e0f807000 Feb 4 23:42:59 rpi3 kernel: [ 571.878862] x19: 0000000000000000 x18: 0000000000000000 Feb 4 23:42:59 rpi3 kernel: [ 571.878871] x17: ffff000010fd8218 x16: ffff305e0e30efb8 Feb 4 23:42:59 rpi3 kernel: [ 571.878879] x15: ffff8ecbf922a290 x14: ffffffffffffffff Feb 4 23:42:59 rpi3 kernel: [ 571.878888] x13: 0000000000000000 x12: ffff305e0f944000 Feb 4 23:42:59 rpi3 kernel: [ 571.878897] x11: ffff305e0f82d000 x10: 0000000000000000 Feb 4 23:42:59 rpi3 kernel: [ 571.878905] x9 : 0000000000000004 x8 : 000000000000017f Feb 4 23:42:59 rpi3 kernel: [ 571.878913] x7 : 0000000000000000 x6 : 0000000000000001 Feb 4 23:42:59 rpi3 kernel: [ 571.878921] x5 : 0000000000000000 x4 : 0000000000000008 Feb 4 23:42:59 rpi3 kernel: [ 571.878929] x3 : ffff305e0ee15750 x2 : 0000000000000004 Feb 4 23:42:59 rpi3 kernel: [ 571.878937] x1 : 6abb42c67c954600 x0 : 0000000000000000 Feb 4 23:42:59 rpi3 kernel: [ 571.878946] Call trace: Feb 4 23:42:59 rpi3 kernel: [ 571.878955] dev_watchdog+0x324/0x330 Feb 4 23:42:59 rpi3 kernel: [ 571.878967] call_timer_fn+0x3c/0x178 Feb 4 23:42:59 rpi3 kernel: [ 571.878977] __run_timers.part.0+0x200/0x330 Feb 4 23:42:59 rpi3 kernel: [ 571.878985] run_timer_softirq+0x40/0x78 Feb 4 23:42:59 rpi3 kernel: [ 571.878995] __do_softirq+0x168/0x384 Feb 4 23:42:59 rpi3 kernel: [ 571.879007] irq_exit+0xb0/0xe8 Feb 4 23:42:59 rpi3 kernel: [ 571.879020] __handle_domain_irq+0x70/0xc0 Feb 4 23:42:59 rpi3 kernel: [ 571.879028] bcm2836_arm_irqchip_handle_irq+0x74/0xe0 Feb 4 23:42:59 rpi3 kernel: [ 571.879037] el1_irq+0x108/0x200 Feb 4 23:42:59 rpi3 kernel: [ 571.879050] arch_cpu_idle+0x3c/0x1c8 Feb 4 23:42:59 rpi3 kernel: [ 571.879069] default_idle_call+0x24/0x48 Feb 4 23:42:59 rpi3 kernel: [ 571.879081] do_idle+0x210/0x2a0 Feb 4 23:42:59 rpi3 kernel: [ 571.879091] cpu_startup_entry+0x28/0x30 Feb 4 23:42:59 rpi3 kernel: [ 571.879102] secondary_start_kernel+0x154/0x1c8 Feb 4 23:42:59 rpi3 kernel: [ 571.879108] ---[ end trace 349744d60a20e77a ]--- ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-image-5.3.0-1017-raspi2 5.3.0-1017.19 ProcVersionSignature: Ubuntu 5.3.0-1017.19-raspi2 5.3.13 Uname: Linux 5.3.0-1017-raspi2 aarch64 ApportVersion: 2.20.11-0ubuntu8.2 Architecture: arm64 Date: Tue Feb 4 23:49:19 2020 ProcEnviron: TERM=linux PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash SourcePackage: linux-raspi2 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1861936/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
