8125 hang with eth driver r8125 on RM52X modules

fozzy · March 24, 2026, 6:38pm

The 8125 ethernet driver hangs randomly.

Quectel
RM521F-GL
Revision: RM521FGLEAR05A02M4G

Quectel
RM520F-GL
Revision: RM520FGLBAR03A01M4G

Both has the same driver version

/ # ethtool -i eth0
driver: r8125
version: 9.010.01-NAPI-RSS
firmware-version: rtl8125b-2_0.0.2 05/14/21
expansion-rom-version:
bus-info: 0000:01:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no
/ # ethtool -k eth0
Features for eth0:
rx-checksumming: on
tx-checksumming: on
        tx-checksum-ipv4: on
        tx-checksum-ip-generic: off [fixed]
        tx-checksum-ipv6: on
        tx-checksum-fcoe-crc: off [fixed]
        tx-checksum-sctp: off [fixed]
scatter-gather: off
        tx-scatter-gather: off
        tx-scatter-gather-fraglist: off [fixed]
tcp-segmentation-offload: off
        tx-tcp-segmentation: off
        tx-tcp-ecn-segmentation: off [fixed]
        tx-tcp-mangleid-segmentation: off
        tx-tcp6-segmentation: off
generic-segmentation-offload: off [requested on]
generic-receive-offload: on
large-receive-offload: off [fixed]
rx-vlan-offload: off
tx-vlan-offload: on
ntuple-filters: off [fixed]
receive-hashing: on
highdma: off [fixed]
rx-vlan-filter: off [fixed]
vlan-challenged: off [fixed]
tx-lockless: off [fixed]
netns-local: off [fixed]
tx-gso-robust: off [fixed]
tx-fcoe-segmentation: off [fixed]
tx-gre-segmentation: off [fixed]
tx-gre-csum-segmentation: off [fixed]
tx-ipxip4-segmentation: off [fixed]
tx-ipxip6-segmentation: off [fixed]
tx-udp_tnl-segmentation: off [fixed]
tx-udp_tnl-csum-segmentation: off [fixed]
tx-gso-partial: off [fixed]
tx-sctp-segmentation: off [fixed]
tx-esp-segmentation: off [fixed]
tx-udp-segmentation: off [fixed]
tx-gso-list: off [fixed]
fcoe-mtu: off [fixed]
tx-nocache-copy: off
loopback: off [fixed]
rx-fcs: off
rx-all: off
tx-vlan-stag-hw-insert: off [fixed]
rx-vlan-stag-hw-parse: off [fixed]
rx-vlan-stag-filter: off [fixed]
l2-fwd-offload: off [fixed]
hw-tc-offload: off [fixed]
esp-hw-offload: off [fixed]
esp-tx-csum-hw-offload: off [fixed]
rx-udp_tunnel-port-offload: off [fixed]
tls-hw-tx-offload: off [fixed]
tls-hw-rx-offload: off [fixed]
rx-gro-hw: off [fixed]
tls-hw-record: off [fixed]
macsec-hw-offload: off [fixed]

[52724.329523] systemd[1]: Stopping dnsmasq service...
[52724.331982] systemd[1]: dnsmasq_service@0.service: Succeeded.
[52724.332629] systemd[1]: Stopped dnsmasq service.
[52724.382807] systemd[1]: Starting dnsmasq service...
[52724.386820] systemd[2815]: dnsmasq_service@0.service: Failed to connect stdout to the journal socket, ignoring: No such file or directory
[52724.395986] systemd[1]: Started dnsmasq service.
[53070.561082] ------------[ cut here ]------------
[53070.561157] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:473 dev_watchdog+0x344/0x350
[53070.561176] NETDEV WATCHDOG: eth0 (r8125): transmit queue 0 timed out
[53070.561190] Modules linked in: machine_dlkm nau8810 snd_soc_rt5616 tlv320aic3x_new sdx_codec_info wcd934x_dlkm wsa881x_dlkm wcd9xxx_dlkm mbhc_dlkm wcd_core_dlkm platform_dlkm stub_dlkm adsp_loader_dlkm audio_pkt_dlkm audpkt_ion_dlkm audio_prm_dlkm spf_core_dlkm gpr_dlkm q6_notifier_dlkm q6_pdr_dlkm swr_ctrl_dlkm q6_dlkm swr_dlkm pinctrl_wcd_dlkm snd_event_dlkm r8125_ioss ioss r8125 rmnet_eth(O) rmnet_core(O)
[53070.561365] CPU: 0 PID: 0 Comm: swapper Tainted: G        W  O      5.4.233-perf #1
[53070.561381] Hardware name: Qualcomm Technologies, Inc. SDXLEMUR (Flattened Device Tree)
[53070.561437] [<b010ee0c>] (unwind_backtrace) from [<b010c0dc>] (show_stack+0x10/0x14)
[53070.561475] [<b010c0dc>] (show_stack) from [<b011d1f4>] (__warn+0xbc/0xc0)
[53070.561509] [<b011d1f4>] (__warn) from [<b011d27c>] (warn_slowpath_fmt+0x84/0x9c)
[53070.561547] [<b011d27c>] (warn_slowpath_fmt) from [<b0b19160>] (dev_watchdog+0x344/0x350)
[53070.561590] [<b0b19160>] (dev_watchdog) from [<b017c1f4>] (call_timer_fn+0xb0/0x1c8)
[53070.561629] [<b017c1f4>] (call_timer_fn) from [<b017c02c>] (__run_timers+0x248/0x360)
[53070.561667] [<b017c02c>] (__run_timers) from [<b017b54c>] (run_timer_softirq+0x14/0x80)
[53070.561705] [<b017b54c>] (run_timer_softirq) from [<b01023a4>] (__do_softirq+0x164/0x3e4)
[53070.561744] [<b01023a4>] (__do_softirq) from [<b0121aac>] (irq_exit+0x88/0xd0)
[53070.561780] [<b0121aac>] (irq_exit) from [<b0160a04>] (__handle_domain_irq+0x80/0xb8)
[53070.561823] [<b0160a04>] (__handle_domain_irq) from [<b046360c>] (gic_handle_irq+0x68/0x94)
[53070.561863] [<b046360c>] (gic_handle_irq) from [<b0101b0c>] (__irq_svc+0x6c/0xa8)
[53070.561881] Exception stack(0xb1401ea8 to 0xb1401ef0)
[53070.561913] 1ea0:                   00000000 00000000 a4bf8215 fffffff3 80fbd632 b9669b78
[53070.561948] 1ec0: 8d4fdf3b 83126e97 00000002 00000000 b9680c88 b9680840 00001aa5 b1401ef8
[53070.561973] 1ee0: 00ffffff b0813724 60000053 ffffffff
[53070.562013] [<b0101b0c>] (__irq_svc) from [<b0813724>] (lpm_cpuidle_enter+0x530/0x82c)
[53070.562058] [<b0813724>] (lpm_cpuidle_enter) from [<b080e364>] (cpuidle_enter_state+0xb0/0x330)
[53070.562100] [<b080e364>] (cpuidle_enter_state) from [<b080e738>] (cpuidle_enter+0x2c/0x3c)
[53070.562140] [<b080e738>] (cpuidle_enter) from [<b014cc78>] (do_idle+0x19c/0x288)
[53070.562176] [<b014cc78>] (do_idle) from [<b014cd70>] (cpu_startup_entry+0xc/0x10)
[53070.562215] [<b014cd70>] (cpu_startup_entry) from [<b1300b90>] (start_kernel+0x330/0x3a8)
[53070.562234] ---[ end trace 436800a8a26ad753 ]---
[53071.005124] bridge0: port 2(eth0) entered disabled state
[53071.040906] r8125: eth0: link down
[53071.052145] r8125: RTNL7 already locked.
[53071.052703] entry 0x0 A0000000 00000000 00000000 00000000
[53071.053990] entry 0x1 871FF920 00000000 00000000 00000000
[53071.054021] entry 0x2 A0000000 00000000 00000002 00000000
[53071.054047] entry 0x3 A0000000 00000000 00000003 00000000
[53071.054073] entry 0x4 A0000000 00000000 00000004 00000000
[53071.054098] entry 0x5 A0000000 00000000 00000005 00000000
[53071.054124] entry 0x6 A0000000 00000000 00000006 00000000
[53071.054149] entry 0x7 A0000000 00000000 00000007 00000000
[53071.054174] entry 0x8 A0000000 00000000 00000008 00000000
[53071.054200] entry 0x9 A0000000 00000000 00000009 00000000
[53071.054225] entry 0x10 A0000000 00000000 0000000A 00000000
[53071.054250] entry 0x11 A0000000 00000000 0000000B 00000000
[53071.054276] entry 0x12 A0000000 00000000 0000000C 00000000
[53071.054301] entry 0x13 A0000000 00000000 0000000D 00000000
[53071.054326] entry 0x14 A0000000 00000000 0000000E 00000000
[53071.054352] entry 0x15 A0000000 00000000 0000000F 00000000
[53071.054377] entry 0x16 A0000000 00000000 00000010 00000000
[53071.054403] entry 0x17 A0000000 00000000 00000011 00000000
[53071.054428] entry 0x18 871FEAA0 00000000 00000000 00000000
[53071.054453] entry 0x19 A0000000 00000000 00000013 00000000
[53071.054479] entry 0x20 A0000000 00000000 00000014 00000000
[53071.054504] entry 0x21 A0000000 00000000 00000015 00000000
[53071.054529] entry 0x22 A0000000 00000000 00000016 00000000
[53071.054555] entry 0x23 A0000000 00000000 00000017 00000000
[53071.054580] entry 0x24 A0000000 00000000 00000018 00000000
[53071.054606] entry 0x25 A0000000 00000000 00000019 00000000
[53071.054631] entry 0x26 A0000000 00000000 0000001A 00000000
[53071.054657] entry 0x27 A0000000 00000000 0000001B 00000000
[53071.054682] entry 0x28 A0000000 00000000 0000001C 00000000
[53071.054707] entry 0x29 A0000000 00000000 0000001D 00000000
[53071.054733] entry 0x30 A0000000 00000000 0000001E 00000000
[53071.054758] entry 0x31 A0000000 00000000 0000001F 00000000
[53071.054767] r8125: RTNL5 already locked.
[53071.055136] r8125_ioss 0000:01:00.0-ioss: ioss:cfg:(eth0) Unmapped RX-1 event 0x871ff920 -> 0x03e18920
[53071.055159] r8125: RTNL7 already locked.
[53071.055198] entry 0x0 A0000000 00000000 00000000 00000000
[53071.055223] entry 0x1 A0000000 00000000 00000001 00000001
[53071.055249] entry 0x2 A0000000 00000000 00000002 00000000
[53071.055274] entry 0x3 A0000000 00000000 00000003 00000000
[53071.055299] entry 0x4 A0000000 00000000 00000004 00000000
[53071.055325] entry 0x5 A0000000 00000000 00000005 00000000
[53071.055350] entry 0x6 A0000000 00000000 00000006 00000000
[53071.055376] entry 0x7 A0000000 00000000 00000007 00000000
[53071.055401] entry 0x8 A0000000 00000000 00000008 00000000
[53071.055426] entry 0x9 A0000000 00000000 00000009 00000000
[53071.055451] entry 0x10 A0000000 00000000 0000000A 00000000
[53071.055476] entry 0x11 A0000000 00000000 0000000B 00000000
[53071.055502] entry 0x12 A0000000 00000000 0000000C 00000000
[53071.055527] entry 0x13 A0000000 00000000 0000000D 00000000
[53071.055552] entry 0x14 A0000000 00000000 0000000E 00000000
[53071.055577] entry 0x15 A0000000 00000000 0000000F 00000000
[53071.055602] entry 0x16 A0000000 00000000 00000010 00000000
[53071.055628] entry 0x17 A0000000 00000000 00000011 00000000
[53071.055653] entry 0x18 871FEAA0 00000000 00000000 00000000
[53071.055678] entry 0x19 A0000000 00000000 00000013 00000000
[53071.055703] entry 0x20 A0000000 00000000 00000014 00000000
[53071.055728] entry 0x21 A0000000 00000000 00000015 00000000
[53071.055754] entry 0x22 A0000000 00000000 00000016 00000000
[53071.055779] entry 0x23 A0000000 00000000 00000017 00000000
[53071.055804] entry 0x24 A0000000 00000000 00000018 00000000
[53071.055830] entry 0x25 A0000000 00000000 00000019 00000000
[53071.055855] entry 0x26 A0000000 00000000 0000001A 00000000
[53071.055881] entry 0x27 A0000000 00000000 0000001B 00000000
[53071.055906] entry 0x28 A0000000 00000000 0000001C 00000000
[53071.055931] entry 0x29 A0000000 00000000 0000001D 00000000
[53071.055957] entry 0x30 A0000000 00000000 0000001E 00000000
[53071.055982] entry 0x31 A0000000 00000000 0000001F 00000000
[53071.055987] r8125: RTNL5 already locked.
[53071.056337] r8125_ioss 0000:01:00.0-ioss: ioss:cfg:(eth0) Unmapped TX-1 event 0x871feaa0 -> 0x03e18aa0
[53071.146123] eth0: 0xc0370000, 6e:97:49:22:ad:59, IRQ 78
[53071.294138] device eth0 left promiscuous mode
[53071.294258] bridge0: port 2(eth0) entered disabled state
[53074.648635] r8125: eth0: link up
[53074.689760] r8125_ioss 0000:01:00.0-ioss: ioss:cfg:(eth0) Voted for IPA bandwidth of 2500 Mbps
[53074.693845] r8125_ioss 0000:01:00.0-ioss: ioss:cfg:(eth0) Mapped RX-1 event 0x87e89920 -> 0x03e18920
[53074.694356] entry 0x0 A0000000 00000000 00000000 00000000
[53074.694371] entry 0x1 87E89920 00000000 00000000 00000000
[53074.694385] entry 0x2 A0000000 00000000 00000002 00000000
[53074.694399] entry 0x3 A0000000 00000000 00000003 00000000
[53074.694412] entry 0x4 A0000000 00000000 00000004 00000000
[53074.694425] entry 0x5 A0000000 00000000 00000005 00000000
[53074.694438] entry 0x6 A0000000 00000000 00000006 00000000
[53074.694451] entry 0x7 A0000000 00000000 00000007 00000000
[53074.694464] entry 0x8 A0000000 00000000 00000008 00000000
[53074.694478] entry 0x9 A0000000 00000000 00000009 00000000
[53074.694491] entry 0x10 A0000000 00000000 0000000A 00000000
[53074.694504] entry 0x11 A0000000 00000000 0000000B 00000000
[53074.694517] entry 0x12 A0000000 00000000 0000000C 00000000
[53074.694530] entry 0x13 A0000000 00000000 0000000D 00000000
[53074.694543] entry 0x14 A0000000 00000000 0000000E 00000000
[53074.694556] entry 0x15 A0000000 00000000 0000000F 00000000
[53074.694570] entry 0x16 A0000000 00000000 00000010 00000000
[53074.694583] entry 0x17 A0000000 00000000 00000011 00000000
[53074.694596] entry 0x18 A0000000 00000000 00000012 00000000
[53074.694609] entry 0x19 A0000000 00000000 00000013 00000000
[53074.694623] entry 0x20 A0000000 00000000 00000014 00000000
[53074.694636] entry 0x21 A0000000 00000000 00000015 00000000
[53074.694649] entry 0x22 A0000000 00000000 00000016 00000000
[53074.694663] entry 0x23 A0000000 00000000 00000017 00000000
[53074.694676] entry 0x24 A0000000 00000000 00000018 00000000
[53074.694690] entry 0x25 A0000000 00000000 00000019 00000000
[53074.694703] entry 0x26 A0000000 00000000 0000001A 00000000
[53074.694716] entry 0x27 A0000000 00000000 0000001B 00000000
[53074.694729] entry 0x28 A0000000 00000000 0000001C 00000000
[53074.694742] entry 0x29 A0000000 00000000 0000001D 00000000
[53074.694755] entry 0x30 A0000000 00000000 0000001E 00000000
[53074.694769] entry 0x31 A0000000 00000000 0000001F 00000000
[53074.694794] r8125_ioss 0000:01:00.0-ioss: ioss:cfg:(eth0) Mapped TX-1 event 0x87e81aa0 -> 0x03e18aa0
[53074.695183] entry 0x0 A0000000 00000000 00000000 00000000
[53074.695197] entry 0x1 87E89920 00000000 00000000 00000000
[53074.695210] entry 0x2 A0000000 00000000 00000002 00000000
[53074.695224] entry 0x3 A0000000 00000000 00000003 00000000
[53074.695237] entry 0x4 A0000000 00000000 00000004 00000000
[53074.695250] entry 0x5 A0000000 00000000 00000005 00000000
[53074.695263] entry 0x6 A0000000 00000000 00000006 00000000
[53074.695276] entry 0x7 A0000000 00000000 00000007 00000000
[53074.695290] entry 0x8 A0000000 00000000 00000008 00000000
[53074.695303] entry 0x9 A0000000 00000000 00000009 00000000
[53074.695317] entry 0x10 A0000000 00000000 0000000A 00000000
[53074.695330] entry 0x11 A0000000 00000000 0000000B 00000000
[53074.695343] entry 0x12 A0000000 00000000 0000000C 00000000
[53074.695356] entry 0x13 A0000000 00000000 0000000D 00000000
[53074.695370] entry 0x14 A0000000 00000000 0000000E 00000000
[53074.695383] entry 0x15 A0000000 00000000 0000000F 00000000
[53074.695396] entry 0x16 A0000000 00000000 00000010 00000000
[53074.695410] entry 0x17 A0000000 00000000 00000011 00000000
[53074.695423] entry 0x18 87E81AA0 00000000 00000000 00000000
[53074.695436] entry 0x19 A0000000 00000000 00000013 00000000
[53074.695450] entry 0x20 A0000000 00000000 00000014 00000000
[53074.695463] entry 0x21 A0000000 00000000 00000015 00000000
[53074.695476] entry 0x22 A0000000 00000000 00000016 00000000
[53074.695490] entry 0x23 A0000000 00000000 00000017 00000000
[53074.695503] entry 0x24 A0000000 00000000 00000018 00000000
[53074.695517] entry 0x25 A0000000 00000000 00000019 00000000
[53074.695530] entry 0x26 A0000000 00000000 0000001A 00000000
[53074.695543] entry 0x27 A0000000 00000000 0000001B 00000000
[53074.695557] entry 0x28 A0000000 00000000 0000001C 00000000
[53074.695570] entry 0x29 A0000000 00000000 0000001D 00000000
[53074.695583] entry 0x30 A0000000 00000000 0000001E 00000000
[53074.695596] entry 0x31 A0000000 00000000 0000001F 00000000
[53074.765283] r8125: RTNL6 already locked.
[53074.765314] r8125: RTNL6 already locked.
[53074.810328] r8125: RTNL6 already locked.
[53074.810360] r8125: RTNL6 already locked.
[53074.874862] bridge0: port 2(eth0) entered blocking state
[53074.874875] bridge0: port 2(eth0) entered disabled state
[53074.876788] device eth0 entered promiscuous mode
[53074.879930] bridge0: port 2(eth0) entered blocking state
[53074.879944] bridge0: port 2(eth0) entered forwarding state
[53080.973759] QCMAP: eth0 Client Mac Address 00:e0:4c:47:23:b8
[53080.973823] QCMAP: eth0 Client IP Address 192.168.225.89

Is this a MTU related issue?

fozzy · March 27, 2026, 8:17am

[138167.521022] ------------[ cut here ]------------
[138167.521106] WARNING: CPU: 0 PID: 0 at net/sched/sch_generic.c:473 dev_watchdog+0x344/0x350
[138167.521126] NETDEV WATCHDOG: eth0 (r8125): transmit queue 0 timed out
[138167.521139] Modules linked in: machine_dlkm nau8810 snd_soc_rt5616 tlv320aic3x_new sdx_codec_info wcd934x_dlkm wsa881x_dlkm wcd9xxx_dlkm mbhc_dlkm wcd_core_dlkm platform_dlkm stub_dlkm adsp_loader_dlkm audio_pkt_dlkm audpkt_ion_dlkm audio_prm_dlkm spf_core_dlkm gpr_dlkm q6_notifier_dlkm q6_pdr_dlkm swr_ctrl_dlkm q6_dlkm swr_dlkm pinctrl_wcd_dlkm snd_event_dlkm r8125_ioss ioss r8125 rmnet_eth(O) rmnet_core(O)
[138167.521319] CPU: 0 PID: 0 Comm: swapper Tainted: G        W  O      5.4.210-perf #1
[138167.521336] Hardware name: Qualcomm Technologies, Inc. SDXLEMUR (Flattened Device Tree)
[138167.521398] [<b010e8c0>] (unwind_backtrace) from [<b010bbf0>] (show_stack+0x10/0x14)
[138167.521434] [<b010bbf0>] (show_stack) from [<b011c9a8>] (__warn+0xc4/0xdc)
[138167.521467] [<b011c9a8>] (__warn) from [<b011ca3c>] (warn_slowpath_fmt+0x7c/0x94)
[138167.521502] [<b011ca3c>] (warn_slowpath_fmt) from [<b0af5498>] (dev_watchdog+0x344/0x350)
[138167.521544] [<b0af5498>] (dev_watchdog) from [<b017a4fc>] (call_timer_fn+0xb0/0x1c8)
[138167.521583] [<b017a4fc>] (call_timer_fn) from [<b017a334>] (__run_timers+0x234/0x34c)
[138167.521618] [<b017a334>] (__run_timers) from [<b0179868>] (run_timer_softirq+0x14/0x80)
[138167.521657] [<b0179868>] (run_timer_softirq) from [<b01023a4>] (__do_softirq+0x164/0x3e4)
[138167.521695] [<b01023a4>] (__do_softirq) from [<b0121050>] (irq_exit+0x88/0xd0)
[138167.521733] [<b0121050>] (irq_exit) from [<b015f210>] (__handle_domain_irq+0x80/0xb8)
[138167.521777] [<b015f210>] (__handle_domain_irq) from [<b04571d8>] (gic_handle_irq+0x68/0x94)
[138167.521816] [<b04571d8>] (gic_handle_irq) from [<b0101b0c>] (__irq_svc+0x6c/0xa8)
[138167.521835] Exception stack(0xb1401ea8 to 0xb1401ef0)
[138167.521867] 1ea0:                   00000000 00000000 d492f39c ffffffdf da18c970 b95be778
[138167.521900] 1ec0: 8d4fdf3b 83126e97 00000002 00000000 b967cc88 b967c840 0000455d b1401ef8
[138167.521924] 1ee0: 00ffffff b07fb668 60000053 ffffffff
[138167.521962] [<b0101b0c>] (__irq_svc) from [<b07fb668>] (lpm_cpuidle_enter+0x530/0x82c)
[138167.522004] [<b07fb668>] (lpm_cpuidle_enter) from [<b07f63d4>] (cpuidle_enter_state+0xb0/0x330)
[138167.522043] [<b07f63d4>] (cpuidle_enter_state) from [<b07f67a8>] (cpuidle_enter+0x2c/0x3c)
[138167.522082] [<b07f67a8>] (cpuidle_enter) from [<b014b66c>] (do_idle+0x19c/0x288)
[138167.522118] [<b014b66c>] (do_idle) from [<b014b764>] (cpu_startup_entry+0xc/0x10)
[138167.522159] [<b014b764>] (cpu_startup_entry) from [<b1300b80>] (start_kernel+0x328/0x3a0)
[138167.522179] ---[ end trace 7f8685c9ec72fa05 ]---
[138167.972673] bridge0: port 2(eth0) entered disabled state
[138167.988754] entry 0x0 A0000000 00000000 00000000 00000000 
[138167.988797] entry 0x1 8783F920 00000000 00000000 00000000 
[138167.988823] entry 0x2 A0000000 00000000 00000002 00000000 
[138167.988849] entry 0x3 A0000000 00000000 00000003 00000000 
[138167.988874] entry 0x4 A0000000 00000000 00000004 00000000 
[138167.988899] entry 0x5 A0000000 00000000 00000005 00000000 
[138167.988924] entry 0x6 A0000000 00000000 00000006 00000000 
[138167.988950] entry 0x7 A0000000 00000000 00000007 00000000 
[138167.988975] entry 0x8 A0000000 00000000 00000008 00000000 
[138167.989001] entry 0x9 A0000000 00000000 00000009 00000000 
[138167.989026] entry 0x10 A0000000 00000000 0000000A 00000000 
[138167.989051] entry 0x11 A0000000 00000000 0000000B 00000000 
[138167.989077] entry 0x12 A0000000 00000000 0000000C 00000000 
[138167.989102] entry 0x13 A0000000 00000000 0000000D 00000000 
[138167.989127] entry 0x14 A0000000 00000000 0000000E 00000000 
[138167.989152] entry 0x15 A0000000 00000000 0000000F 00000000 
[138167.989177] entry 0x16 A0000000 00000000 00000010 00000000 
[138167.989203] entry 0x17 A0000000 00000000 00000011 00000000 
[138167.989228] entry 0x18 87B1DAA0 00000000 00000000 00000000 
[138167.989253] entry 0x19 A0000000 00000000 00000013 00000000 
[138167.989279] entry 0x20 A0000000 00000000 00000014 00000000 
[138167.989304] entry 0x21 A0000000 00000000 00000015 00000000 
[138167.989329] entry 0x22 A0000000 00000000 00000016 00000000 
[138167.989354] entry 0x23 A0000000 00000000 00000017 00000000 
[138167.989379] entry 0x24 A0000000 00000000 00000018 00000000 
[138167.989404] entry 0x25 A0000000 00000000 00000019 00000000 
[138167.989429] entry 0x26 A0000000 00000000 0000001A 00000000 
[138167.989454] entry 0x27 A0000000 00000000 0000001B 00000000 
[138167.989479] entry 0x28 A0000000 00000000 0000001C 00000000 
[138167.989505] entry 0x29 A0000000 00000000 0000001D 00000000 
[138167.989530] entry 0x30 A0000000 00000000 0000001E 00000000 
[138167.989555] entry 0x31 A0000000 00000000 0000001F 00000000 
[138167.989958] r8125_ioss 0000:01:00.0-ioss: ioss:cfg:(eth0) Unmapped RX-1 event 0x8783f920 -> 0x03e18920
[138167.990014] entry 0x0 A0000000 00000000 00000000 00000000 
[138167.990040] entry 0x1 A0000000 00000000 00000001 00000001 
[138167.990065] entry 0x2 A0000000 00000000 00000002 00000000 
[138167.990091] entry 0x3 A0000000 00000000 00000003 00000000 
[138167.990116] entry 0x4 A0000000 00000000 00000004 00000000 
[138167.990141] entry 0x5 A0000000 00000000 00000005 00000000 
[138167.990166] entry 0x6 A0000000 00000000 00000006 00000000 
[138167.990191] entry 0x7 A0000000 00000000 00000007 00000000 
[138167.990216] entry 0x8 A0000000 00000000 00000008 00000000 
[138167.990242] entry 0x9 A0000000 00000000 00000009 00000000 
[138167.990267] entry 0x10 A0000000 00000000 0000000A 00000000 
[138167.990292] entry 0x11 A0000000 00000000 0000000B 00000000 
[138167.990317] entry 0x12 A0000000 00000000 0000000C 00000000 
[138167.990342] entry 0x13 A0000000 00000000 0000000D 00000000 
[138167.990367] entry 0x14 A0000000 00000000 0000000E 00000000 
[138167.990392] entry 0x15 A0000000 00000000 0000000F 00000000 
[138167.990417] entry 0x16 A0000000 00000000 00000010 00000000 
[138167.990443] entry 0x17 A0000000 00000000 00000011 00000000 
[138167.990468] entry 0x18 87B1DAA0 00000000 00000000 00000000 
[138168.000628] r8125: eth0: link down
[138168.021205] device eth0 left promiscuous mode
[138168.021261] entry 0x19 A0000000 00000000 00000013 00000000 
[138168.022761] entry 0x20 A0000000 00000000 00000014 00000000 
[138168.023888] entry 0x21 A0000000 00000000 00000015 00000000 
[138168.023920] entry 0x22 A0000000 00000000 00000016 00000000 
[138168.023946] entry 0x23 A0000000 00000000 00000017 00000000 
[138168.023971] entry 0x24 A0000000 00000000 00000018 00000000 
[138168.023996] entry 0x25 A0000000 00000000 00000019 00000000 
[138168.024021] entry 0x26 A0000000 00000000 0000001A 00000000 
[138168.024046] entry 0x27 A0000000 00000000 0000001B 00000000 
[138168.024071] entry 0x28 A0000000 00000000 0000001C 00000000 
[138168.024096] entry 0x29 A0000000 00000000 0000001D 00000000 
[138168.024121] entry 0x30 A0000000 00000000 0000001E 00000000 
[138168.024146] entry 0x31 A0000000 00000000 0000001F 00000000 
[138168.024156] r8125: RTNL5 already locked.
[138168.024527] r8125_ioss 0000:01:00.0-ioss: ioss:cfg:(eth0) Unmapped TX-1 event 0x87b1daa0 -> 0x03e18aa0
[138168.025965] bridge0: port 2(eth0) entered disabled state
[138168.277062] eth0: 0xc0a10000, 62:6d:7f:4d:09:f2, IRQ 78
[138173.258632] r8125: eth0: link up
[138173.329639] r8125_ioss 0000:01:00.0-ioss: ioss:cfg:(eth0) Voted for IPA bandwidth of 2500 Mbps
[138173.331897] r8125_ioss 0000:01:00.0-ioss: ioss:cfg:(eth0) Mapped RX-1 event 0x87d31920 -> 0x03e18920
[138173.332405] entry 0x0 A0000000 00000000 00000000 00000000 
[138173.332419] entry 0x1 87D31920 00000000 00000000 00000000 
[138173.332432] entry 0x2 A0000000 00000000 00000002 00000000 
[138173.332445] entry 0x3 A0000000 00000000 00000003 00000000 
[138173.332457] entry 0x4 A0000000 00000000 00000004 00000000 
[138173.332470] entry 0x5 A0000000 00000000 00000005 00000000 
[138173.332483] entry 0x6 A0000000 00000000 00000006 00000000 
[138173.332496] entry 0x7 A0000000 00000000 00000007 00000000 
[138173.332509] entry 0x8 A0000000 00000000 00000008 00000000 
[138173.332522] entry 0x9 A0000000 00000000 00000009 00000000 
[138173.332534] entry 0x10 A0000000 00000000 0000000A 00000000 
[138173.332547] entry 0x11 A0000000 00000000 0000000B 00000000 
[138173.332561] entry 0x12 A0000000 00000000 0000000C 00000000 
[138173.332574] entry 0x13 A0000000 00000000 0000000D 00000000 
[138173.332587] entry 0x14 A0000000 00000000 0000000E 00000000 
[138173.332599] entry 0x15 A0000000 00000000 0000000F 00000000 
[138173.332612] entry 0x16 A0000000 00000000 00000010 00000000 
[138173.332625] entry 0x17 A0000000 00000000 00000011 00000000 
[138173.332638] entry 0x18 A0000000 00000000 00000012 00000000 
[138173.332651] entry 0x19 A0000000 00000000 00000013 00000000 
[138173.332664] entry 0x20 A0000000 00000000 00000014 00000000 
[138173.332676] entry 0x21 A0000000 00000000 00000015 00000000 
[138173.332689] entry 0x22 A0000000 00000000 00000016 00000000 
[138173.332702] entry 0x23 A0000000 00000000 00000017 00000000 
[138173.332714] entry 0x24 A0000000 00000000 00000018 00000000 
[138173.332727] entry 0x25 A0000000 00000000 00000019 00000000 
[138173.332740] entry 0x26 A0000000 00000000 0000001A 00000000 
[138173.332753] entry 0x27 A0000000 00000000 0000001B 00000000 
[138173.332765] entry 0x28 A0000000 00000000 0000001C 00000000 
[138173.332778] entry 0x29 A0000000 00000000 0000001D 00000000 
[138173.332791] entry 0x30 A0000000 00000000 0000001E 00000000 
[138173.332804] entry 0x31 A0000000 00000000 0000001F 00000000 
[138173.332828] r8125_ioss 0000:01:00.0-ioss: ioss:cfg:(eth0) Mapped TX-1 event 0x87876aa0 -> 0x03e18aa0
[138173.333216] entry 0x0 A0000000 00000000 00000000 00000000 
[138173.333230] entry 0x1 87D31920 00000000 00000000 00000000 
[138173.333243] entry 0x2 A0000000 00000000 00000002 00000000 
[138173.333256] entry 0x3 A0000000 00000000 00000003 00000000 
[138173.333268] entry 0x4 A0000000 00000000 00000004 00000000 
[138173.333281] entry 0x5 A0000000 00000000 00000005 00000000 
[138173.333294] entry 0x6 A0000000 00000000 00000006 00000000 
[138173.333307] entry 0x7 A0000000 00000000 00000007 00000000 
[138173.333319] entry 0x8 A0000000 00000000 00000008 00000000 
[138173.333332] entry 0x9 A0000000 00000000 00000009 00000000 
[138173.333345] entry 0x10 A0000000 00000000 0000000A 00000000 
[138173.333358] entry 0x11 A0000000 00000000 0000000B 00000000 
[138173.333370] entry 0x12 A0000000 00000000 0000000C 00000000 
[138173.333383] entry 0x13 A0000000 00000000 0000000D 00000000 
[138173.333396] entry 0x14 A0000000 00000000 0000000E 00000000 
[138173.333409] entry 0x15 A0000000 00000000 0000000F 00000000 
[138173.333422] entry 0x16 A0000000 00000000 00000010 00000000 
[138173.333435] entry 0x17 A0000000 00000000 00000011 00000000 
[138173.333448] entry 0x18 87876AA0 00000000 00000000 00000000 
[138173.333460] entry 0x19 A0000000 00000000 00000013 00000000 
[138173.333473] entry 0x20 A0000000 00000000 00000014 00000000 
[138173.333486] entry 0x21 A0000000 00000000 00000015 00000000 
[138173.333499] entry 0x22 A0000000 00000000 00000016 00000000 
[138173.333512] entry 0x23 A0000000 00000000 00000017 00000000 
[138173.333525] entry 0x24 A0000000 00000000 00000018 00000000 
[138173.333537] entry 0x25 A0000000 00000000 00000019 00000000 
[138173.333550] entry 0x26 A0000000 00000000 0000001A 00000000 
[138173.333564] entry 0x27 A0000000 00000000 0000001B 00000000 
[138173.333576] entry 0x28 A0000000 00000000 0000001C 00000000 
[138173.333589] entry 0x29 A0000000 00000000 0000001D 00000000 
[138173.333602] entry 0x30 A0000000 00000000 0000001E 00000000 
[138173.333615] entry 0x31 A0000000 00000000 0000001F 00000000 
[138173.380575] r8125: RTNL6 already locked.
[138173.380669] r8125: RTNL6 already locked.
[138173.408961] r8125: RTNL6 already locked.
[138173.409050] r8125: RTNL6 already locked.
[138173.452244] bridge0: port 2(eth0) entered blocking state
[138173.452258] bridge0: port 2(eth0) entered disabled state
[138173.453662] device eth0 entered promiscuous mode
[138173.455833] bridge0: port 2(eth0) entered blocking state
[138173.455849] bridge0: port 2(eth0) entered forwarding state
root@sdxlemur:~#

silvia · March 30, 2026, 5:46am

Dear @fozzy
Do you load driver via AT command?
How long will it hang? Do it recovery via restart?

fozzy · March 30, 2026, 9:45am

Hi,
Yes the driver was loaded by +QETH command and it hangs for +/- 1minute then will recovery by itself, the kernel reset the driver. Before the kernel watchdog detects the r8125 is hanging it won’t respond until get reloaded by the kernel. I tried set MTU to 1280 or so will reduce the chance of hang but still occurs.