Public bug reported:
Unloading the r8127 module (e.g. on rmmod or driver update) can trigger
a kernel WARN from the networking stack because NAPI is deleted while it
is still enabled.
2026-02-09T21:16:19.010268+00:00 spark1 kernel: ------------[ cut here
]------------
2026-02-09T21:16:19.010275+00:00 spark1 kernel: WARNING: CPU: 6 PID: 2047 at
net/core/dev.c:7470 __netif_napi_del_locked+0x130/0x148
2026-02-09T21:16:19.010277+00:00 spark1 kernel: Modules linked in: sbsa_gwdt
nvidia_drm(OE) drm_ttm_helper cppc_cpufreq acpi_power_meter acpi_ipmi
ipmi_devintf ipmi_msghandler rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace
netfs nvidia_modeset(O
E) qrtr sunrpc binfmt_misc nls_iso8859_1 btusb btrtl nvidia(OE) mt7925e btintel
mt7925_common btbcm mt792x_lib btmtk mt76_connac_lib bluetooth mt76
snd_hda_codec_tegrahdmi mac80211 snd_hda_codec_hdmi cfg80211 video arm_spe_pmu
arm_smmuv3_pmu snd_hd
a_acpi libarc4 ttm snd_hda_codec snd_hwdep mlx5_fwctl snd_hda_core fwctl
snd_pcm snd_timer snd soundcore acpi_tad input_leds sch_fq_codel efi_pstore
dm_multipath nfnetlink dmi_sysfs autofs4 btrfs blake2b_generic raid10 raid456
async_raid6_recov asy
nc_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq raid1 raid0 linear
mlx5_ib ib_uverbs macsec ib_core hid_generic usbhid hid polyval_ce ghash_ce
sm4_ce_gcm sm4_ce_ccm sm4_ce mlx5_core sm4_ce_cipher sm4 nvme sm3_ce mlxfw
sha3_ce arm_smccc_
trng nvme_core psample nvme_keyring r8127(-) tls nvme_auth pci_hyperv_intf
2026-02-09T21:16:19.010280+00:00 spark1 kernel: xhci_plat_hcd aes_neon_bs
aes_neon_blk aes_ce_blk aes_ce_cipher [last unloaded: drm_ttm_helper]
2026-02-09T21:16:19.010282+00:00 spark1 kernel: CPU: 6 UID: 0 PID: 2047 Comm:
modprobe Kdump: loaded Tainted: G OE 6.17.0-1004-nvidia-64k
#4-Ubuntu PREEMPT(none)
2026-02-09T21:16:19.010284+00:00 spark1 kernel: Tainted: [O]=OOT_MODULE,
[E]=UNSIGNED_MODULE
2026-02-09T21:16:19.010285+00:00 spark1 kernel: Hardware name: NVIDIA
NVIDIA_DGX_Spark/P4242, BIOS 5.36_0ACUM018 08/06/2025
2026-02-09T21:16:19.010286+00:00 spark1 kernel: pstate: 83400009 (Nzcv daif
+PAN -UAO +TCO +DIT -SSBS BTYPE=--)
2026-02-09T21:16:19.010287+00:00 spark1 kernel: pc :
__netif_napi_del_locked+0x130/0x148
2026-02-09T21:16:19.010288+00:00 spark1 kernel: lr :
rtl8127_remove_one+0xe8/0x2c0 [r8127]
2026-02-09T21:16:19.010289+00:00 spark1 kernel: sp : ffff80009a44f970
2026-02-09T21:16:19.010304+00:00 spark1 kernel: x29: ffff80009a44f970 x28:
ffff0000d3c04ac0 x27: 0000000000000200
2026-02-09T21:16:19.010306+00:00 spark1 kernel: x26: ffff0000859ba0c8 x25:
ffff0000859ba000 x24: ffff0000d3c00000
2026-02-09T21:16:19.010308+00:00 spark1 kernel: x23: 0000000000000018 x22:
ffff0000d3c00ac0 x21: ffff0000d3c00ad8
2026-02-09T21:16:19.010309+00:00 spark1 kernel: x20: 0000000000000001 x19:
ffff0000d3c00ad8 x18: ffff8000974e0080
2026-02-09T21:16:19.010310+00:00 spark1 kernel: x17: 0000000000000000 x16:
ffffbe1af7d52500 x15: 0000000000000000
2026-02-09T21:16:19.010311+00:00 spark1 kernel: x14: 0000000000000000 x13:
0000000000000000 x12: 0000000000000000
2026-02-09T21:16:19.010312+00:00 spark1 kernel: x11: 00000000000000c0 x10:
0000000000000000 x9 : ffffbe1ac4c24128
2026-02-09T21:16:19.010325+00:00 spark1 kernel: x8 : 0000000000000000 x7 :
0000000000000000 x6 : 0000000000000000
2026-02-09T21:16:19.010327+00:00 spark1 kernel: x5 : 0000000000000000 x4 :
0000000000000000 x3 : 0000000000000000
2026-02-09T21:16:19.010329+00:00 spark1 kernel: x2 : 0000000000000000 x1 :
ffff0000d3c00ae8 x0 : 0000000000000000
2026-02-09T21:16:19.010342+00:00 spark1 kernel: Call trace:
2026-02-09T21:16:19.010345+00:00 spark1 kernel:
__netif_napi_del_locked+0x130/0x148 (P)
2026-02-09T21:16:19.010346+00:00 spark1 kernel: rtl8127_remove_one+0xe8/0x2c0
[r8127]
2026-02-09T21:16:19.010348+00:00 spark1 kernel: pci_device_remove+0x50/0x120
2026-02-09T21:16:19.010349+00:00 spark1 kernel: device_remove+0x58/0xc0
2026-02-09T21:16:19.010350+00:00 spark1 kernel:
device_release_driver_internal+0x214/0x2e0
2026-02-09T21:16:19.010351+00:00 spark1 kernel: driver_detach+0x58/0xc0
2026-02-09T21:16:19.010355+00:00 spark1 kernel: bus_remove_driver+0x84/0x148
2026-02-09T21:16:19.010356+00:00 spark1 kernel: driver_unregister+0x3c/0xa0
2026-02-09T21:16:19.010357+00:00 spark1 kernel: pci_unregister_driver+0x3c/0xc0
2026-02-09T21:16:19.010358+00:00 spark1 kernel:
rtl8127_cleanup_module+0x28/0x1050 [r8127]
2026-02-09T21:16:19.010359+00:00 spark1 kernel:
__do_sys_delete_module.isra.0+0x1cc/0x350
2026-02-09T21:16:19.010372+00:00 spark1 kernel:
__arm64_sys_delete_module+0x20/0x40
2026-02-09T21:16:19.010384+00:00 spark1 kernel:
invoke_syscall.constprop.0+0x7c/0xf8
2026-02-09T21:16:19.010386+00:00 spark1 kernel: do_el0_svc+0x4c/0x100
2026-02-09T21:16:19.010389+00:00 spark1 kernel: el0_svc+0x48/0x200
2026-02-09T21:16:19.010391+00:00 spark1 kernel: el0t_64_sync_handler+0xc0/0x108
2026-02-09T21:16:19.010392+00:00 spark1 kernel: el0t_64_sync+0x1b8/0x1c0
2026-02-09T21:16:19.010393+00:00 spark1 kernel: ---[ end trace 0000000000000000
]---
2026-02-09T21:16:19.026403+00:00 spark1 kernel: ------------[ cut here
]------------
** Affects: linux-nvidia-6.17 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2141780
Title:
r8127 module unload triggers NAPI WARN in netif_napi_del_locked()
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