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Message-ID: <aff833bb8b202f12feed5b2682f1361f13e37581.camel@inf.elte.hu>
Date: Thu, 19 Oct 2023 13:48:35 +0200
From: Ferenc Fejes <fejes@....elte.hu>
To: netdev <netdev@...r.kernel.org>
Cc: linux-usb@...r.kernel.org, linux-usb@...r.kernel.org
Subject: r8152: error when loading the module

Hi!

On my machine r8152 module loading takes about one minute.

Its a Debian Sid: 
uname -a
Linux pc 6.5.0-2-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.5.6-1 (2023-10-
07) x86_64 GNU/Linux

dmesg:


[  899.522306] usbcore: registered new device driver r8152-cfgselector
[  899.601295] r8152-cfgselector 2-1.3: reset SuperSpeed USB device
number 4 using xhci_hcd
[  927.789526] r8152 2-1.3:1.0: firmware: direct-loading firmware
rtl_nic/rtl8156b-2.fw
[  942.033905] r8152 2-1.3:1.0: load rtl8156b-2 v2 04/27/23
successfully
[  956.269444] ------------[ cut here ]------------
[  956.269447] WARNING: CPU: 7 PID: 211 at drivers/net/usb/r8152.c:7668
r8156b_hw_phy_cfg+0x1417/0x1430 [r8152]
[  956.269458] Modules linked in: r8152(+) hid_logitech_hidpp uhid ccm
rfcomm cmac algif_hash algif_skcipher af_alg snd_seq_dummy snd_hrtimer
snd_seq qrtr openvswitch nsh nf_conncount nf_nat nf_conntrack
nf_defrag_ipv6 nf_defrag_ipv4 bnep binfmt_misc nls_ascii nls_cp437 vfat
fat snd_ctl_led snd_soc_skl_hda_dsp snd_soc_intel_hda_dsp_common
snd_sof_probes snd_soc_hdac_hdmi x86_pkg_temp_thermal intel_powerclamp
coretemp kvm_intel snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic ledtrig_audio kvm iwlmvm snd_soc_dmic
snd_sof_pci_intel_tgl snd_sof_intel_hda_common btusb btrtl btbcm
soundwire_intel btintel btmtk irqbypass soundwire_generic_allocation
mac80211 mei_pxp mei_wdt mei_hdcp snd_sof_intel_hda_mlink bluetooth
ghash_clmulni_intel soundwire_cadence snd_sof_intel_hda snd_sof_pci
pmt_telemetry pmt_class intel_rapl_msr snd_sof_xtensa_dsp snd_sof
libarc4 aesni_intel snd_sof_utils snd_soc_hdac_hda snd_hda_ext_core
snd_soc_acpi_intel_match snd_soc_acpi crypto_simd snd_soc_core cryptd
iwlwifi sha3_generic
[  956.269502]  jitterentropy_rng rapl snd_compress soundwire_bus
sha512_ssse3 snd_hda_intel iTCO_wdt intel_cstate intel_pmc_bxt
sha512_generic snd_intel_dspcfg hp_wmi iTCO_vendor_support
snd_intel_sdw_acpi intel_uncore cfg80211 platform_profile snd_usb_audio
snd_hda_codec ctr pcspkr watchdog snd_hda_core mei_me drbg wmi_bmof
snd_usbmidi_lib ansi_cprng snd_hwdep snd_rawmidi mei ecdh_generic
uvcvideo snd_seq_device snd_pcm videobuf2_vmalloc uvc videobuf2_memops
hid_sensor_incl_3d videobuf2_v4l2 hid_sensor_magn_3d hid_sensor_als
hid_sensor_rotation hid_sensor_accel_3d hid_sensor_gyro_3d rfkill
snd_timer hid_sensor_trigger videobuf2_common snd hid_sensor_iio_common
ecc processor_thermal_device_pci_legacy industrialio_triggered_buffer
kfifo_buf processor_thermal_device soundcore industrialio
processor_thermal_rfim processor_thermal_mbox ucsi_acpi typec_ucsi
processor_thermal_rapl roles intel_vsec intel_rapl_common
intel_soc_dts_iosf igen6_edac typec int3403_thermal soc_button_array
int340x_thermal_zone int3400_thermal
[  956.269530]  intel_hid acpi_pad intel_pmc_core ac acpi_thermal_rel
sparse_keymap joydev hid_multitouch serio_raw evdev squashfs msr
videodev mc parport_pc ppdev lp parport dm_mod loop efi_pstore configfs
ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 efivarfs raid10
raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor
raid6_pq libcrc32c crc32c_generic raid1 raid0 multipath linear md_mod
virtiofs virtio_ring fuse virtio cdc_ncm cdc_ether usbnet hid_jabra
hid_sensor_custom hid_sensor_hub intel_ishtp_hid mii i915 drm_buddy
i2c_algo_bit drm_display_helper wacom usbhid cec hid_generic rc_core
nvme nvme_core ttm xhci_pci t10_pi drm_kms_helper xhci_hcd
crc64_rocksoft crc64 crc_t10dif iosm crct10dif_generic i2c_hid_acpi
crc32_pclmul crct10dif_pclmul intel_ish_ipc intel_lpss_pci i2c_i801
crc32c_intel drm usbcore thunderbolt i2c_smbus intel_lpss intel_ishtp
wwan crct10dif_common vmd idma64 usb_common i2c_hid battery hid video
wmi button [last unloaded: r8152]
[  956.269572] CPU: 7 PID: 211 Comm: kworker/7:2 Tainted: G        W  
6.5.0-2-amd64 #1  Debian 6.5.6-1
[  956.269574] Hardware name: HP HP EliteBook x360 1040 G8 Notebook
PC/8720, BIOS T93 Ver. 01.14.00 06/26/2023
[  956.269575] Workqueue: events_long rtl_hw_phy_work_func_t [r8152]
[  956.269580] RIP: 0010:r8156b_hw_phy_cfg+0x1417/0x1430 [r8152]
[  956.269584] Code: be 00 a4 00 00 48 89 df 81 e2 ff f7 00 00 e8 00 49
ff ff e9 a3 ec ff ff be 01 00 00 00 48 89 df e8 ae 6d ff ff e9 eb f0 ff
ff <0f> 0b e9 b5 ec ff ff e8 5d 7e e1 d3 66 66 2e 0f 1f 84 00 00 00 00
[  956.269585] RSP: 0018:ffffac368073bde0 EFLAGS: 00010293
[  956.269586] RAX: 0000000000000000 RBX: ffffa0c848d939c0 RCX:
0000000000000000
[  956.269587] RDX: 0000000000000000 RSI: 0000000000000246 RDI:
0000000000000000
[  956.269588] RBP: ffffa0c848d93da8 R08: 0000000000000000 R09:
0000000000000000
[  956.269589] R10: 0000000000000001 R11: 0000000000000000 R12:
ffffa0c848d939c0
[  956.269589] R13: ffffac368023cc50 R14: ffffa0c8a3ab3360 R15:
0000000000001c50
[  956.269590] FS:  0000000000000000(0000) GS:ffffa0cfcf9c0000(0000)
knlGS:0000000000000000
[  956.269591] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  956.269592] CR2: 00007fbc793e5000 CR3: 00000001ddd70002 CR4:
0000000000f70ee0
[  956.269593] PKRU: 55555554
[  956.269593] Call Trace:
[  956.269595]  <TASK>
[  956.269596]  ? r8156b_hw_phy_cfg+0x1417/0x1430 [r8152]
[  956.269600]  ? __warn+0x81/0x130
[  956.269605]  ? r8156b_hw_phy_cfg+0x1417/0x1430 [r8152]
[  956.269609]  ? report_bug+0x191/0x1c0
[  956.269613]  ? handle_bug+0x3c/0x80
[  956.269615]  ? exc_invalid_op+0x17/0x70
[  956.269617]  ? asm_exc_invalid_op+0x1a/0x20
[  956.269620]  ? r8156b_hw_phy_cfg+0x1417/0x1430 [r8152]
[  956.269624]  rtl_hw_phy_work_func_t+0x263/0xf50 [r8152]
[  956.269629]  process_one_work+0x1de/0x3f0
[  956.269632]  worker_thread+0x51/0x390
[  956.269633]  ? _raw_spin_lock_irqsave+0x27/0x60
[  956.269635]  ? __pfx_worker_thread+0x10/0x10
[  956.269637]  kthread+0xf4/0x130
[  956.269639]  ? __pfx_kthread+0x10/0x10
[  956.269640]  ret_from_fork+0x31/0x50
[  956.269643]  ? __pfx_kthread+0x10/0x10
[  956.269645]  ret_from_fork_asm+0x1b/0x30
[  956.269648]  </TASK>
[  956.269648] ---[ end trace 0000000000000000 ]---
[  966.304141] r8152 2-1.3:1.0: PHY patch request fail
[  966.304935] r8152 2-1.3:1.0 eth0: v1.12.13
[  966.304983] usbcore: registered new interface driver r8152

Which in my case points to line 7668:

(gdb) l *(r8156b_hw_phy_cfg+0x1417)
0x12577 is in r8156b_hw_phy_cfg (drivers/net/usb/r8152.c:7668).
7663	
7664		/* disable EEE before updating the PHY parameters */
7665		rtl_eee_enable(tp, false);
7666	
7667		data = r8153_phy_status(tp, PHY_STAT_LAN_ON);
7668		WARN_ON_ONCE(data != PHY_STAT_LAN_ON);
7669	
7670		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA,
PLA_PHY_PWR);
7671		ocp_data |= PFM_PWM_SWITCH;
7672		ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR,
ocp_data);


Thanks,
Ferenc

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