From: Stefan Wahren <wahrenst@gmx.net>
To: Thangaraj Samynathan <Thangaraj.S@microchip.com>,
Rengarajan Sundararajan <Rengarajan.S@microchip.com>,
Oleksij Rempel <o.rempel@pengutronix.de>
Cc: netdev <netdev@vger.kernel.org>,
"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>
Subject: lan78xx: Failed to sync IRQ enable register: -ENODEV
Date: Sun, 13 Apr 2025 21:49:00 +0200 [thread overview]
Message-ID: <3d4bda4e-f4e8-455e-87ec-2a84d6924d76@gmx.net> (raw)
Hi,
i noticed that recent changes to lan78xx introduced error messages to
the bootlog of Raspberry Pi 3 B Plus (arm/multi_v7_defconfig, 6.15.0-rc1).
[ 8.715374] lan78xx 1-1.1.1:1.0 (unnamed net_device) (uninitialized):
No External EEPROM. Setting MAC Speed
[ 9.313859] usbcore: registered new interface driver lan78xx
[ 10.132752] vchiq: module is from the staging directory, the quality
is unknown, you have been warned.
[ 10.533613] usbcore: registered new device driver onboard-usb-dev
[ 10.533861] usb 1-1.1: USB disconnect, device number 3
[ 10.533880] usb 1-1.1.1: USB disconnect, device number 6
[ 10.656641] lan78xx 1-1.1.1:1.0 eth0 (unregistered): Failed to sync
IRQ enable register: -ENODEV
[ 10.657440] lan78xx 1-1.1.1:1.0 eth0 (unregistered): Failed to sync
IRQ enable register: -ENODEV
[ 10.658819] usb 1-1.1.2: USB disconnect, device number 5
Since this happend during only two times during boot, i added a
WARN_ON() in this specific case in order to see what's going on:
[ 10.655832] ------------[ cut here ]------------
[ 10.655865] WARNING: CPU: 1 PID: 161 at
drivers/net/usb/lan78xx.c:2442 lan78xx_irq_bus_sync_unlock+0x94/0xb0
[lan78xx]
[ 10.655903] Modules linked in: soundcore onboard_usb_dev(+) drm_exec
ecdh_generic drm_dma_helper ecc raspberrypi_hwmon libaes bcm2835_thermal
vchiq(C) microchip lan78xx
[ 10.655966] CPU: 1 UID: 0 PID: 161 Comm: systemd-udevd Tainted:
G C 6.15.0-rc1-00002-g5f5bffb44607-dirty #431 NONE
[ 10.655976] Tainted: [C]=CRAP
[ 10.655980] Hardware name: BCM2835
[ 10.655984] Call trace:
[ 10.655999] unwind_backtrace from show_stack+0x10/0x14
[ 10.656027] show_stack from dump_stack_lvl+0x50/0x64
[ 10.656043] dump_stack_lvl from __warn+0x80/0x128
[ 10.656062] __warn from warn_slowpath_fmt+0x170/0x178
[ 10.656076] warn_slowpath_fmt from
lan78xx_irq_bus_sync_unlock+0x94/0xb0 [lan78xx]
[ 10.656092] lan78xx_irq_bus_sync_unlock [lan78xx] from
free_irq+0x308/0x318
[ 10.656110] free_irq from phy_disconnect+0x2c/0x48
[ 10.656131] phy_disconnect from lan78xx_disconnect+0x80/0x14c [lan78xx]
[ 10.656143] lan78xx_disconnect [lan78xx] from
usb_unbind_interface+0x7c/0x290
[ 10.656161] usb_unbind_interface from
device_release_driver_internal+0x180/0x1f4
[ 10.656177] device_release_driver_internal from
bus_remove_device+0xc0/0xe4
[ 10.656193] bus_remove_device from device_del+0x138/0x424
[ 10.656209] device_del from usb_disable_device+0xc4/0x170
[ 10.656223] usb_disable_device from usb_disconnect+0xdc/0x270
[ 10.656238] usb_disconnect from usb_disconnect+0xa8/0x270
[ 10.656252] usb_disconnect from hub_quiesce+0x68/0xb4
[ 10.656268] hub_quiesce from hub_disconnect+0x38/0x164
[ 10.656284] hub_disconnect from usb_unbind_interface+0x7c/0x290
[ 10.656298] usb_unbind_interface from
device_release_driver_internal+0x180/0x1f4
[ 10.656309] device_release_driver_internal from
bus_remove_device+0xc0/0xe4
[ 10.656320] bus_remove_device from device_del+0x138/0x424
[ 10.656333] device_del from usb_disable_device+0xc4/0x170
[ 10.656345] usb_disable_device from usb_set_configuration+0x504/0x8e0
[ 10.656358] usb_set_configuration from usb_unbind_device+0x24/0x7c
[ 10.656371] usb_unbind_device from
device_release_driver_internal+0x180/0x1f4
[ 10.656380] device_release_driver_internal from device_reprobe+0x18/0x90
[ 10.656391] device_reprobe from __usb_bus_reprobe_drivers+0x40/0x6c
[ 10.656407] __usb_bus_reprobe_drivers from bus_for_each_dev+0x6c/0xb4
[ 10.656421] bus_for_each_dev from usb_register_device_driver+0x94/0xc8
[ 10.656434] usb_register_device_driver from
onboard_dev_init+0x14/0x1000 [onboard_usb_dev]
[ 10.656460] onboard_dev_init [onboard_usb_dev] from
do_one_initcall+0x40/0x1e0
[ 10.656480] do_one_initcall from do_init_module+0x50/0x1fc
[ 10.656497] do_init_module from init_module_from_file+0x90/0xbc
[ 10.656513] init_module_from_file from sys_finit_module+0x194/0x2b0
[ 10.656528] sys_finit_module from __sys_trace_return+0x0/0x10
[ 10.656542] Exception stack(0xf1bf9fa8 to 0xf1bf9ff0)
[ 10.656550] 9fa0: b6f5bf04 00000040 00000006
b6f5ad00 00000000 b6f5ba78
[ 10.656556] 9fc0: b6f5bf04 00000040 6ebbc400 0000017b 006dac18
005a196b 005a19dc 006dbae0
[ 10.656562] 9fe0: bee066c8 bee066b8 b6f52bc8 b6dfc580
[ 10.656581] ---[ end trace 0000000000000000 ]---
Maybe some has any idea, how to fix this properly.
Best regards
next reply other threads:[~2025-04-13 19:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-13 19:49 Stefan Wahren [this message]
2025-04-14 5:47 ` lan78xx: Failed to sync IRQ enable register: -ENODEV Oleksij Rempel
2025-04-14 6:20 ` Heiner Kallweit
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3d4bda4e-f4e8-455e-87ec-2a84d6924d76@gmx.net \
--to=wahrenst@gmx.net \
--cc=Rengarajan.S@microchip.com \
--cc=Thangaraj.S@microchip.com \
--cc=linux-usb@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=o.rempel@pengutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.