* PROBLEM: HIDRAW: /dev/hidraw* device does not get removed when unplugged
@ 2010-08-11 15:15 Alan Ott
[not found] ` <4C62BE85.2040803-yzvJWuRpmD1zbRFIqnYvSA@public.gmane.org>
0 siblings, 1 reply; 4+ messages in thread
From: Alan Ott @ 2010-08-11 15:15 UTC (permalink / raw)
To: linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-usb-u79uwXL29TY76Z2rM5mHXA, Jiri Kosina, Antonio Ospite
Hello,
I'm having a bit of trouble with hidraw (with a USB device) and device
removal. When I remove a device and re-attach it, the original device
does not get removed, and another node is added to /dev.
At boot:
no /dev/hidraw devices exist
attach a device:
/dev/hidraw0 exists
detach the device:
/dev/hidraw0 remains
re-attach the device:
/dev/hidraw0 exists (defunct)
/dev/hidraw1 exists
This is with 2.6.35+ from git, revision 3d30701b58970425e1d, updated
about 30 minutes ago.
Aug 11 11:04:15 ato kernel: [ 109.554287] ------------[ cut here
]------------
Aug 11 11:04:15 ato kernel: [ 109.554300] WARNING: at lib/kobject.c:595
kobject_put+0x50/0x60()
Aug 11 11:04:15 ato kernel: [ 109.554306] Hardware name: GA-MA770T-UD3P
Aug 11 11:04:15 ato kernel: [ 109.554311] kobject: '(null)'
(ffff880244a49898): is not initialized, yet kobject_put() is being called.
Aug 11 11:04:15 ato kernel: [ 109.554317] Modules linked in: usbhid hid
binfmt_misc fbcon tileblit font bitblit softcursor snd_hda_codec_nvhdmi
nouveau snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep
snd_pcm_oss ttm drm_kms_helper snd_mixer_oss snd_pcm drm snd_seq_dummy
snd_seq_oss snd_seq_midi snd_rawmidi ppdev parport_pc snd_seq_midi_event
snd_seq psmouse lp snd_timer parport i2c_algo_bit edac_core video
edac_mce_amd i2c_piix4 snd_seq_device serio_raw snd soundcore
snd_page_alloc output ohci1394 floppy pata_atiixp ieee1394 ahci libahci
r8169 mii
Aug 11 11:04:15 ato kernel: [ 109.554399] Pid: 29, comm: khubd Not
tainted 2.6.35+ #19
Aug 11 11:04:15 ato kernel: [ 109.554404] Call Trace:
Aug 11 11:04:15 ato kernel: [ 109.554416] [<ffffffff8105de1f>]
warn_slowpath_common+0x7f/0xc0
Aug 11 11:04:15 ato kernel: [ 109.554425] [<ffffffff8105df16>]
warn_slowpath_fmt+0x46/0x50
Aug 11 11:04:15 ato kernel: [ 109.554434] [<ffffffff812a47c0>]
kobject_put+0x50/0x60
Aug 11 11:04:15 ato kernel: [ 109.554442] [<ffffffff8135c6b7>]
put_device+0x17/0x20
Aug 11 11:04:15 ato kernel: [ 109.554455] [<ffffffffa0238998>]
hid_destroy_device+0x48/0x60 [hid]
Aug 11 11:04:15 ato kernel: [ 109.554466] [<ffffffffa00f2aeb>]
usbhid_disconnect+0x2b/0x50 [usbhid]
Aug 11 11:04:15 ato kernel: [ 109.554477] [<ffffffff813d620a>]
usb_unbind_interface+0x5a/0x1a0
Aug 11 11:04:15 ato kernel: [ 109.554487] [<ffffffff81360645>]
__device_release_driver+0x75/0xe0
Aug 11 11:04:15 ato kernel: [ 109.554495] [<ffffffff813607ad>]
device_release_driver+0x2d/0x40
Aug 11 11:04:15 ato kernel: [ 109.554503] [<ffffffff8135f79e>]
bus_remove_device+0xae/0xf0
Aug 11 11:04:15 ato kernel: [ 109.554510] [<ffffffff8135d437>]
device_del+0x127/0x1d0
Aug 11 11:04:15 ato kernel: [ 109.554519] [<ffffffff813d2b88>]
usb_disable_device+0xa8/0x130
Aug 11 11:04:15 ato kernel: [ 109.554527] [<ffffffff813cbe65>]
usb_disconnect+0x95/0x130
Aug 11 11:04:15 ato kernel: [ 109.554535] [<ffffffff813cd51d>]
hub_thread+0x48d/0x1210
Aug 11 11:04:15 ato kernel: [ 109.554544] [<ffffffff8105771b>] ?
dequeue_task_fair+0x8b/0x90
Aug 11 11:04:15 ato kernel: [ 109.554555] [<ffffffff8107e490>] ?
autoremove_wake_function+0x0/0x40
Aug 11 11:04:15 ato kernel: [ 109.554563] [<ffffffff813cd090>] ?
hub_thread+0x0/0x1210
Aug 11 11:04:15 ato kernel: [ 109.554571] [<ffffffff8107df36>]
kthread+0x96/0xa0
Aug 11 11:04:15 ato kernel: [ 109.554580] [<ffffffff8100be64>]
kernel_thread_helper+0x4/0x10
Aug 11 11:04:15 ato kernel: [ 109.554588] [<ffffffff8107dea0>] ?
kthread+0x0/0xa0
Aug 11 11:04:15 ato kernel: [ 109.554595] [<ffffffff8100be60>] ?
kernel_thread_helper+0x0/0x10
Aug 11 11:04:15 ato kernel: [ 109.554601] ---[ end trace
212263bbb326ec69 ]---
Aug 11 11:04:21 ato kernel: [ 116.450553] usb 1-5.4: new full speed USB
device using ehci_hcd and address 7
Aug 11 11:04:22 ato kernel: [ 116.576230] generic-usb
0003:04D8:003F.0002: hiddev0,hidraw1: USB HID v1.11 Device [Microchip
Technology Inc. Simple HID Device Demo] on usb-0000:00:12.2-5.4/input0
Aug 11 11:04:23 ato kernel: [ 117.746427] usb 1-5.4: USB disconnect,
address 7
Aug 11 11:04:23 ato kernel: [ 117.746500] ------------[ cut here
]------------
lan@ato:~/work/linux-2.6$ scripts/ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
Linux ato 2.6.35+ #19 SMP Wed Aug 11 10:53:49 EDT 2010 x86_64 GNU/Linux
Gnu C 4.4.3
Gnu make 3.81
binutils 2.20.1
util-linux 2.17.2
mount support
module-init-tools 3.11.1
e2fsprogs 1.41.11
pcmciautils 014
Linux C Library 2.11.1
Dynamic linker (ldd) 2.11.1
Procps 3.2.8
Net-tools 1.60
Kbd 1.15
Sh-utils 7.4
wireless-tools 30
Modules Loaded usbhid hid binfmt_misc fbcon tileblit font
bitblit softcursor snd_hda_codec_nvhdmi nouveau snd_hda_codec_realtek
snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss ttm drm_kms_helper
snd_mixer_oss snd_pcm drm snd_seq_dummy snd_seq_oss snd_seq_midi
snd_rawmidi ppdev parport_pc snd_seq_midi_event snd_seq psmouse lp
snd_timer parport i2c_algo_bit edac_core video edac_mce_amd i2c_piix4
snd_seq_device serio_raw snd soundcore snd_page_alloc output ohci1394
floppy pata_atiixp ieee1394 ahci libahci r8169 mii
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: PROBLEM: HIDRAW: /dev/hidraw* device does not get removed when unplugged
[not found] ` <4C62BE85.2040803-yzvJWuRpmD1zbRFIqnYvSA@public.gmane.org>
@ 2010-08-11 15:21 ` Jiri Kosina
[not found] ` <alpine.LNX.2.00.1008111720300.2702-ztGlSCb7Y1iN3ZZ/Hiejyg@public.gmane.org>
0 siblings, 1 reply; 4+ messages in thread
From: Jiri Kosina @ 2010-08-11 15:21 UTC (permalink / raw)
To: Alan Ott
Cc: linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-usb-u79uwXL29TY76Z2rM5mHXA, Antonio Ospite
On Wed, 11 Aug 2010, Alan Ott wrote:
> Hello,
>
> I'm having a bit of trouble with hidraw (with a USB device) and device
> removal. When I remove a device and re-attach it, the original device does not
> get removed, and another node is added to /dev.
>
> At boot:
> no /dev/hidraw devices exist
>
> attach a device:
> /dev/hidraw0 exists
>
> detach the device:
> /dev/hidraw0 remains
>
> re-attach the device:
> /dev/hidraw0 exists (defunct)
> /dev/hidraw1 exists
>
> This is with 2.6.35+ from git, revision 3d30701b58970425e1d, updated about 30
> minutes ago.
>
> Aug 11 11:04:15 ato kernel: [ 109.554287] ------------[ cut here
> ]------------
> Aug 11 11:04:15 ato kernel: [ 109.554300] WARNING: at lib/kobject.c:595
> kobject_put+0x50/0x60()
> Aug 11 11:04:15 ato kernel: [ 109.554306] Hardware name: GA-MA770T-UD3P
> Aug 11 11:04:15 ato kernel: [ 109.554311] kobject: '(null)'
> (ffff880244a49898): is not initialized, yet kobject_put() is being called.
> Aug 11 11:04:15 ato kernel: [ 109.554317] Modules linked in: usbhid hid
> binfmt_misc fbcon tileblit font bitblit softcursor snd_hda_codec_nvhdmi
> nouveau snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep
> snd_pcm_oss ttm drm_kms_helper snd_mixer_oss snd_pcm drm snd_seq_dummy
> snd_seq_oss snd_seq_midi snd_rawmidi ppdev parport_pc snd_seq_midi_event
> snd_seq psmouse lp snd_timer parport i2c_algo_bit edac_core video edac_mce_amd
> i2c_piix4 snd_seq_device serio_raw snd soundcore snd_page_alloc output
> ohci1394 floppy pata_atiixp ieee1394 ahci libahci r8169 mii
> Aug 11 11:04:15 ato kernel: [ 109.554399] Pid: 29, comm: khubd Not tainted
> 2.6.35+ #19
> Aug 11 11:04:15 ato kernel: [ 109.554404] Call Trace:
> Aug 11 11:04:15 ato kernel: [ 109.554416] [<ffffffff8105de1f>]
> warn_slowpath_common+0x7f/0xc0
> Aug 11 11:04:15 ato kernel: [ 109.554425] [<ffffffff8105df16>]
> warn_slowpath_fmt+0x46/0x50
> Aug 11 11:04:15 ato kernel: [ 109.554434] [<ffffffff812a47c0>]
> kobject_put+0x50/0x60
> Aug 11 11:04:15 ato kernel: [ 109.554442] [<ffffffff8135c6b7>]
> put_device+0x17/0x20
> Aug 11 11:04:15 ato kernel: [ 109.554455] [<ffffffffa0238998>]
> hid_destroy_device+0x48/0x60 [hid]
> Aug 11 11:04:15 ato kernel: [ 109.554466] [<ffffffffa00f2aeb>]
> usbhid_disconnect+0x2b/0x50 [usbhid]
> Aug 11 11:04:15 ato kernel: [ 109.554477] [<ffffffff813d620a>]
> usb_unbind_interface+0x5a/0x1a0
> Aug 11 11:04:15 ato kernel: [ 109.554487] [<ffffffff81360645>]
> __device_release_driver+0x75/0xe0
> Aug 11 11:04:15 ato kernel: [ 109.554495] [<ffffffff813607ad>]
> device_release_driver+0x2d/0x40
> Aug 11 11:04:15 ato kernel: [ 109.554503] [<ffffffff8135f79e>]
> bus_remove_device+0xae/0xf0
> Aug 11 11:04:15 ato kernel: [ 109.554510] [<ffffffff8135d437>]
> device_del+0x127/0x1d0
> Aug 11 11:04:15 ato kernel: [ 109.554519] [<ffffffff813d2b88>]
> usb_disable_device+0xa8/0x130
> Aug 11 11:04:15 ato kernel: [ 109.554527] [<ffffffff813cbe65>]
> usb_disconnect+0x95/0x130
> Aug 11 11:04:15 ato kernel: [ 109.554535] [<ffffffff813cd51d>]
> hub_thread+0x48d/0x1210
> Aug 11 11:04:15 ato kernel: [ 109.554544] [<ffffffff8105771b>] ?
> dequeue_task_fair+0x8b/0x90
> Aug 11 11:04:15 ato kernel: [ 109.554555] [<ffffffff8107e490>] ?
> autoremove_wake_function+0x0/0x40
> Aug 11 11:04:15 ato kernel: [ 109.554563] [<ffffffff813cd090>] ?
> hub_thread+0x0/0x1210
> Aug 11 11:04:15 ato kernel: [ 109.554571] [<ffffffff8107df36>]
> kthread+0x96/0xa0
> Aug 11 11:04:15 ato kernel: [ 109.554580] [<ffffffff8100be64>]
> kernel_thread_helper+0x4/0x10
> Aug 11 11:04:15 ato kernel: [ 109.554588] [<ffffffff8107dea0>] ?
> kthread+0x0/0xa0
> Aug 11 11:04:15 ato kernel: [ 109.554595] [<ffffffff8100be60>] ?
> kernel_thread_helper+0x0/0x10
> Aug 11 11:04:15 ato kernel: [ 109.554601] ---[ end trace 212263bbb326ec69
> ]---
> Aug 11 11:04:21 ato kernel: [ 116.450553] usb 1-5.4: new full speed USB
> device using ehci_hcd and address 7
> Aug 11 11:04:22 ato kernel: [ 116.576230] generic-usb 0003:04D8:003F.0002:
> hiddev0,hidraw1: USB HID v1.11 Device [Microchip Technology Inc. Simple HID
> Device Demo] on usb-0000:00:12.2-5.4/input0
> Aug 11 11:04:23 ato kernel: [ 117.746427] usb 1-5.4: USB disconnect, address
> 7
> Aug 11 11:04:23 ato kernel: [ 117.746500] ------------[ cut here
> ]------------
>
>
> lan@ato:~/work/linux-2.6$ scripts/ver_linux
> If some fields are empty or look unusual you may have an old version.
> Compare to the current minimal requirements in Documentation/Changes.
>
> Linux ato 2.6.35+ #19 SMP Wed Aug 11 10:53:49 EDT 2010 x86_64 GNU/Linux
>
> Gnu C 4.4.3
> Gnu make 3.81
> binutils 2.20.1
> util-linux 2.17.2
> mount support
> module-init-tools 3.11.1
> e2fsprogs 1.41.11
> pcmciautils 014
> Linux C Library 2.11.1
> Dynamic linker (ldd) 2.11.1
> Procps 3.2.8
> Net-tools 1.60
> Kbd 1.15
> Sh-utils 7.4
> wireless-tools 30
> Modules Loaded usbhid hid binfmt_misc fbcon tileblit font bitblit
> softcursor snd_hda_codec_nvhdmi nouveau snd_hda_codec_realtek snd_hda_intel
> snd_hda_codec snd_hwdep snd_pcm_oss ttm drm_kms_helper snd_mixer_oss snd_pcm
> drm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi ppdev parport_pc
> snd_seq_midi_event snd_seq psmouse lp snd_timer parport i2c_algo_bit edac_core
> video edac_mce_amd i2c_piix4 snd_seq_device serio_raw snd soundcore
> snd_page_alloc output ohci1394 floppy pata_atiixp ieee1394 ahci libahci r8169
> mii
This looks very similar to http://lkml.org/lkml/2010/8/10/373
I have not yet root-caused this, but I am not aware of any recent changes
in usb-hid that might be causing that, so I suspect some change in USB
core. But will have to investigate.
--
Jiri Kosina
SUSE Labs, Novell Inc.
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: PROBLEM: HIDRAW: /dev/hidraw* device does not get removed when unplugged
[not found] ` <alpine.LNX.2.00.1008111720300.2702-ztGlSCb7Y1iN3ZZ/Hiejyg@public.gmane.org>
@ 2010-08-11 15:28 ` Alan Ott
2010-08-12 3:53 ` Alan Ott
0 siblings, 1 reply; 4+ messages in thread
From: Alan Ott @ 2010-08-11 15:28 UTC (permalink / raw)
To: Jiri Kosina
Cc: linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-usb-u79uwXL29TY76Z2rM5mHXA, Antonio Ospite
On 08/11/2010 11:21 AM, Jiri Kosina wrote:
> On Wed, 11 Aug 2010, Alan Ott wrote:
>
>
>> Hello,
>>
>> I'm having a bit of trouble with hidraw (with a USB device) and device
>> removal. When I remove a device and re-attach it, the original device does not
>> get removed, and another node is added to /dev.
>>
>> At boot:
>> no /dev/hidraw devices exist
>>
>> attach a device:
>> /dev/hidraw0 exists
>>
>> detach the device:
>> /dev/hidraw0 remains
>>
>> re-attach the device:
>> /dev/hidraw0 exists (defunct)
>> /dev/hidraw1 exists
>>
>> This is with 2.6.35+ from git, revision 3d30701b58970425e1d, updated about 30
>> minutes ago.
>>
>> Aug 11 11:04:15 ato kernel: [ 109.554287] ------------[ cut here
>> ]------------
>> Aug 11 11:04:15 ato kernel: [ 109.554300] WARNING: at lib/kobject.c:595
>> kobject_put+0x50/0x60()
>> Aug 11 11:04:15 ato kernel: [ 109.554306] Hardware name: GA-MA770T-UD3P
>> Aug 11 11:04:15 ato kernel: [ 109.554311] kobject: '(null)'
>> (ffff880244a49898): is not initialized, yet kobject_put() is being called.
>> Aug 11 11:04:15 ato kernel: [ 109.554317] Modules linked in: usbhid hid
>> binfmt_misc fbcon tileblit font bitblit softcursor snd_hda_codec_nvhdmi
>> nouveau snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep
>> snd_pcm_oss ttm drm_kms_helper snd_mixer_oss snd_pcm drm snd_seq_dummy
>> snd_seq_oss snd_seq_midi snd_rawmidi ppdev parport_pc snd_seq_midi_event
>> snd_seq psmouse lp snd_timer parport i2c_algo_bit edac_core video edac_mce_amd
>> i2c_piix4 snd_seq_device serio_raw snd soundcore snd_page_alloc output
>> ohci1394 floppy pata_atiixp ieee1394 ahci libahci r8169 mii
>> Aug 11 11:04:15 ato kernel: [ 109.554399] Pid: 29, comm: khubd Not tainted
>> 2.6.35+ #19
>> Aug 11 11:04:15 ato kernel: [ 109.554404] Call Trace:
>> Aug 11 11:04:15 ato kernel: [ 109.554416] [<ffffffff8105de1f>]
>> warn_slowpath_common+0x7f/0xc0
>> Aug 11 11:04:15 ato kernel: [ 109.554425] [<ffffffff8105df16>]
>> warn_slowpath_fmt+0x46/0x50
>> Aug 11 11:04:15 ato kernel: [ 109.554434] [<ffffffff812a47c0>]
>> kobject_put+0x50/0x60
>> Aug 11 11:04:15 ato kernel: [ 109.554442] [<ffffffff8135c6b7>]
>> put_device+0x17/0x20
>> Aug 11 11:04:15 ato kernel: [ 109.554455] [<ffffffffa0238998>]
>> hid_destroy_device+0x48/0x60 [hid]
>> Aug 11 11:04:15 ato kernel: [ 109.554466] [<ffffffffa00f2aeb>]
>> usbhid_disconnect+0x2b/0x50 [usbhid]
>> Aug 11 11:04:15 ato kernel: [ 109.554477] [<ffffffff813d620a>]
>> usb_unbind_interface+0x5a/0x1a0
>> Aug 11 11:04:15 ato kernel: [ 109.554487] [<ffffffff81360645>]
>> __device_release_driver+0x75/0xe0
>> Aug 11 11:04:15 ato kernel: [ 109.554495] [<ffffffff813607ad>]
>> device_release_driver+0x2d/0x40
>> Aug 11 11:04:15 ato kernel: [ 109.554503] [<ffffffff8135f79e>]
>> bus_remove_device+0xae/0xf0
>> Aug 11 11:04:15 ato kernel: [ 109.554510] [<ffffffff8135d437>]
>> device_del+0x127/0x1d0
>> Aug 11 11:04:15 ato kernel: [ 109.554519] [<ffffffff813d2b88>]
>> usb_disable_device+0xa8/0x130
>> Aug 11 11:04:15 ato kernel: [ 109.554527] [<ffffffff813cbe65>]
>> usb_disconnect+0x95/0x130
>> Aug 11 11:04:15 ato kernel: [ 109.554535] [<ffffffff813cd51d>]
>> hub_thread+0x48d/0x1210
>> Aug 11 11:04:15 ato kernel: [ 109.554544] [<ffffffff8105771b>] ?
>> dequeue_task_fair+0x8b/0x90
>> Aug 11 11:04:15 ato kernel: [ 109.554555] [<ffffffff8107e490>] ?
>> autoremove_wake_function+0x0/0x40
>> Aug 11 11:04:15 ato kernel: [ 109.554563] [<ffffffff813cd090>] ?
>> hub_thread+0x0/0x1210
>> Aug 11 11:04:15 ato kernel: [ 109.554571] [<ffffffff8107df36>]
>> kthread+0x96/0xa0
>> Aug 11 11:04:15 ato kernel: [ 109.554580] [<ffffffff8100be64>]
>> kernel_thread_helper+0x4/0x10
>> Aug 11 11:04:15 ato kernel: [ 109.554588] [<ffffffff8107dea0>] ?
>> kthread+0x0/0xa0
>> Aug 11 11:04:15 ato kernel: [ 109.554595] [<ffffffff8100be60>] ?
>> kernel_thread_helper+0x0/0x10
>> Aug 11 11:04:15 ato kernel: [ 109.554601] ---[ end trace 212263bbb326ec69
>> ]---
>> Aug 11 11:04:21 ato kernel: [ 116.450553] usb 1-5.4: new full speed USB
>> device using ehci_hcd and address 7
>> Aug 11 11:04:22 ato kernel: [ 116.576230] generic-usb 0003:04D8:003F.0002:
>> hiddev0,hidraw1: USB HID v1.11 Device [Microchip Technology Inc. Simple HID
>> Device Demo] on usb-0000:00:12.2-5.4/input0
>> Aug 11 11:04:23 ato kernel: [ 117.746427] usb 1-5.4: USB disconnect, address
>> 7
>> Aug 11 11:04:23 ato kernel: [ 117.746500] ------------[ cut here
>> ]------------
>>
>>
>> lan@ato:~/work/linux-2.6$ scripts/ver_linux
>> If some fields are empty or look unusual you may have an old version.
>> Compare to the current minimal requirements in Documentation/Changes.
>>
>> Linux ato 2.6.35+ #19 SMP Wed Aug 11 10:53:49 EDT 2010 x86_64 GNU/Linux
>>
>> Gnu C 4.4.3
>> Gnu make 3.81
>> binutils 2.20.1
>> util-linux 2.17.2
>> mount support
>> module-init-tools 3.11.1
>> e2fsprogs 1.41.11
>> pcmciautils 014
>> Linux C Library 2.11.1
>> Dynamic linker (ldd) 2.11.1
>> Procps 3.2.8
>> Net-tools 1.60
>> Kbd 1.15
>> Sh-utils 7.4
>> wireless-tools 30
>> Modules Loaded usbhid hid binfmt_misc fbcon tileblit font bitblit
>> softcursor snd_hda_codec_nvhdmi nouveau snd_hda_codec_realtek snd_hda_intel
>> snd_hda_codec snd_hwdep snd_pcm_oss ttm drm_kms_helper snd_mixer_oss snd_pcm
>> drm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi ppdev parport_pc
>> snd_seq_midi_event snd_seq psmouse lp snd_timer parport i2c_algo_bit edac_core
>> video edac_mce_amd i2c_piix4 snd_seq_device serio_raw snd soundcore
>> snd_page_alloc output ohci1394 floppy pata_atiixp ieee1394 ahci libahci r8169
>> mii
>>
> This looks very similar to http://lkml.org/lkml/2010/8/10/373
>
> I have not yet root-caused this, but I am not aware of any recent changes
> in usb-hid that might be causing that, so I suspect some change in USB
> core. But will have to investigate.
>
I just tried it with a Bluetooth HID keyboard and it works as expected.
I'd suspect it to not be a HID problem.
Alan.
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: PROBLEM: HIDRAW: /dev/hidraw* device does not get removed when unplugged
2010-08-11 15:28 ` Alan Ott
@ 2010-08-12 3:53 ` Alan Ott
0 siblings, 0 replies; 4+ messages in thread
From: Alan Ott @ 2010-08-12 3:53 UTC (permalink / raw)
To: Jiri Kosina; +Cc: linux-input, linux-usb, Antonio Ospite, Greg KH
On 08/11/2010 11:28 AM, Alan Ott wrote:
> On 08/11/2010 11:21 AM, Jiri Kosina wrote:
>> On Wed, 11 Aug 2010, Alan Ott wrote:
>>
>>> Hello,
>>>
>>> I'm having a bit of trouble with hidraw (with a USB device) and device
>>> removal. When I remove a device and re-attach it, the original
>>> device does not
>>> get removed, and another node is added to /dev.
>>>
>>> At boot:
>>> no /dev/hidraw devices exist
>>>
>>> attach a device:
>>> /dev/hidraw0 exists
>>>
>>> detach the device:
>>> /dev/hidraw0 remains
>>>
>>> re-attach the device:
>>> /dev/hidraw0 exists (defunct)
>>> /dev/hidraw1 exists
>>>
>>> This is with 2.6.35+ from git, revision 3d30701b58970425e1d, updated
>>> about 30
>>> minutes ago.
>>>
>>> Aug 11 11:04:15 ato kernel: [ 109.554287] ------------[ cut here
>>> ]------------
>>> Aug 11 11:04:15 ato kernel: [ 109.554300] WARNING: at
>>> lib/kobject.c:595
>>> kobject_put+0x50/0x60()
>>> Aug 11 11:04:15 ato kernel: [ 109.554306] Hardware name:
>>> GA-MA770T-UD3P
>>> Aug 11 11:04:15 ato kernel: [ 109.554311] kobject: '(null)'
>>> (ffff880244a49898): is not initialized, yet kobject_put() is being
>>> called.
>>> Aug 11 11:04:15 ato kernel: [ 109.554317] Modules linked in: usbhid
>>> hid
>>> binfmt_misc fbcon tileblit font bitblit softcursor snd_hda_codec_nvhdmi
>>> nouveau snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep
>>> snd_pcm_oss ttm drm_kms_helper snd_mixer_oss snd_pcm drm snd_seq_dummy
>>> snd_seq_oss snd_seq_midi snd_rawmidi ppdev parport_pc
>>> snd_seq_midi_event
>>> snd_seq psmouse lp snd_timer parport i2c_algo_bit edac_core video
>>> edac_mce_amd
>>> i2c_piix4 snd_seq_device serio_raw snd soundcore snd_page_alloc output
>>> ohci1394 floppy pata_atiixp ieee1394 ahci libahci r8169 mii
>>> Aug 11 11:04:15 ato kernel: [ 109.554399] Pid: 29, comm: khubd Not
>>> tainted
>>> 2.6.35+ #19
>>> Aug 11 11:04:15 ato kernel: [ 109.554404] Call Trace:
>>> Aug 11 11:04:15 ato kernel: [ 109.554416] [<ffffffff8105de1f>]
>>> warn_slowpath_common+0x7f/0xc0
>>> Aug 11 11:04:15 ato kernel: [ 109.554425] [<ffffffff8105df16>]
>>> warn_slowpath_fmt+0x46/0x50
>>> Aug 11 11:04:15 ato kernel: [ 109.554434] [<ffffffff812a47c0>]
>>> kobject_put+0x50/0x60
>>> Aug 11 11:04:15 ato kernel: [ 109.554442] [<ffffffff8135c6b7>]
>>> put_device+0x17/0x20
>>> Aug 11 11:04:15 ato kernel: [ 109.554455] [<ffffffffa0238998>]
>>> hid_destroy_device+0x48/0x60 [hid]
>>> Aug 11 11:04:15 ato kernel: [ 109.554466] [<ffffffffa00f2aeb>]
>>> usbhid_disconnect+0x2b/0x50 [usbhid]
>>> Aug 11 11:04:15 ato kernel: [ 109.554477] [<ffffffff813d620a>]
>>> usb_unbind_interface+0x5a/0x1a0
>>> Aug 11 11:04:15 ato kernel: [ 109.554487] [<ffffffff81360645>]
>>> __device_release_driver+0x75/0xe0
>>> Aug 11 11:04:15 ato kernel: [ 109.554495] [<ffffffff813607ad>]
>>> device_release_driver+0x2d/0x40
>>> Aug 11 11:04:15 ato kernel: [ 109.554503] [<ffffffff8135f79e>]
>>> bus_remove_device+0xae/0xf0
>>> Aug 11 11:04:15 ato kernel: [ 109.554510] [<ffffffff8135d437>]
>>> device_del+0x127/0x1d0
>>> Aug 11 11:04:15 ato kernel: [ 109.554519] [<ffffffff813d2b88>]
>>> usb_disable_device+0xa8/0x130
>>> Aug 11 11:04:15 ato kernel: [ 109.554527] [<ffffffff813cbe65>]
>>> usb_disconnect+0x95/0x130
>>> Aug 11 11:04:15 ato kernel: [ 109.554535] [<ffffffff813cd51d>]
>>> hub_thread+0x48d/0x1210
>>> Aug 11 11:04:15 ato kernel: [ 109.554544] [<ffffffff8105771b>] ?
>>> dequeue_task_fair+0x8b/0x90
>>> Aug 11 11:04:15 ato kernel: [ 109.554555] [<ffffffff8107e490>] ?
>>> autoremove_wake_function+0x0/0x40
>>> Aug 11 11:04:15 ato kernel: [ 109.554563] [<ffffffff813cd090>] ?
>>> hub_thread+0x0/0x1210
>>> Aug 11 11:04:15 ato kernel: [ 109.554571] [<ffffffff8107df36>]
>>> kthread+0x96/0xa0
>>> Aug 11 11:04:15 ato kernel: [ 109.554580] [<ffffffff8100be64>]
>>> kernel_thread_helper+0x4/0x10
>>> Aug 11 11:04:15 ato kernel: [ 109.554588] [<ffffffff8107dea0>] ?
>>> kthread+0x0/0xa0
>>> Aug 11 11:04:15 ato kernel: [ 109.554595] [<ffffffff8100be60>] ?
>>> kernel_thread_helper+0x0/0x10
>>> Aug 11 11:04:15 ato kernel: [ 109.554601] ---[ end trace
>>> 212263bbb326ec69
>>> ]---
>>> Aug 11 11:04:21 ato kernel: [ 116.450553] usb 1-5.4: new full speed
>>> USB
>>> device using ehci_hcd and address 7
>>> Aug 11 11:04:22 ato kernel: [ 116.576230] generic-usb
>>> 0003:04D8:003F.0002:
>>> hiddev0,hidraw1: USB HID v1.11 Device [Microchip Technology Inc.
>>> Simple HID
>>> Device Demo] on usb-0000:00:12.2-5.4/input0
>>> Aug 11 11:04:23 ato kernel: [ 117.746427] usb 1-5.4: USB
>>> disconnect, address
>>> 7
>>> Aug 11 11:04:23 ato kernel: [ 117.746500] ------------[ cut here
>>> ]------------
>>>
>>>
>>> lan@ato:~/work/linux-2.6$ scripts/ver_linux
>>> If some fields are empty or look unusual you may have an old version.
>>> Compare to the current minimal requirements in Documentation/Changes.
>>>
>>> Linux ato 2.6.35+ #19 SMP Wed Aug 11 10:53:49 EDT 2010 x86_64 GNU/Linux
>>>
>>> Gnu C 4.4.3
>>> Gnu make 3.81
>>> binutils 2.20.1
>>> util-linux 2.17.2
>>> mount support
>>> module-init-tools 3.11.1
>>> e2fsprogs 1.41.11
>>> pcmciautils 014
>>> Linux C Library 2.11.1
>>> Dynamic linker (ldd) 2.11.1
>>> Procps 3.2.8
>>> Net-tools 1.60
>>> Kbd 1.15
>>> Sh-utils 7.4
>>> wireless-tools 30
>>> Modules Loaded usbhid hid binfmt_misc fbcon tileblit font
>>> bitblit
>>> softcursor snd_hda_codec_nvhdmi nouveau snd_hda_codec_realtek
>>> snd_hda_intel
>>> snd_hda_codec snd_hwdep snd_pcm_oss ttm drm_kms_helper snd_mixer_oss
>>> snd_pcm
>>> drm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi ppdev parport_pc
>>> snd_seq_midi_event snd_seq psmouse lp snd_timer parport i2c_algo_bit
>>> edac_core
>>> video edac_mce_amd i2c_piix4 snd_seq_device serio_raw snd soundcore
>>> snd_page_alloc output ohci1394 floppy pata_atiixp ieee1394 ahci
>>> libahci r8169
>>> mii
>> This looks very similar to http://lkml.org/lkml/2010/8/10/373
>>
>> I have not yet root-caused this, but I am not aware of any recent
>> changes
>> in usb-hid that might be causing that, so I suspect some change in USB
>> core. But will have to investigate.
>
> I just tried it with a Bluetooth HID keyboard and it works as
> expected. I'd suspect it to not be a HID problem.
I think the warning and the non-removal of the /dev/hidraw* node are
unrelated.
I spent some time looking into the non-removal of the /dev/hidraw* node.
The hid_disconnect() function takes care of removing the node, and it's
not getting called. hid_disconnect() is called by hid_hw_stop() (hid.h),
which is called by hid_device_remove() (hid-core.c) which _should_ be
getting called by the driver subsystem. It looks like this is not
happening for whatever reason.
I wasn't able to get anything conclusive beyond this (yet).
Alan.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2010-08-12 3:53 UTC | newest]
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-- links below jump to the message on this page --
2010-08-11 15:15 PROBLEM: HIDRAW: /dev/hidraw* device does not get removed when unplugged Alan Ott
[not found] ` <4C62BE85.2040803-yzvJWuRpmD1zbRFIqnYvSA@public.gmane.org>
2010-08-11 15:21 ` Jiri Kosina
[not found] ` <alpine.LNX.2.00.1008111720300.2702-ztGlSCb7Y1iN3ZZ/Hiejyg@public.gmane.org>
2010-08-11 15:28 ` Alan Ott
2010-08-12 3:53 ` Alan Ott
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