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SubjectWarning with hda intel registration on sysfs
Hi,

It's not a new warning, I got it for a while now, probably since
.29, but it's still there (2.6.31).

I've seen a report about it by the past so I didn't wonder
much. And eventually I've been used to see it.

Tell me if you need my config. I'm currently running a -tip
based kernel but if you need I can send you a config against
vanilla.

Here is the warning:

[ 4.099038] WARNING: at fs/sysfs/dir.c:487 sysfs_add_one+0x11b/0x150()
[ 4.108180] Hardware name: AMILO Li 2727
[ 4.117320] sysfs: cannot create duplicate filename '/dev/char/14:4'
[ 4.126374] Modules linked in:
[ 4.135204] Pid: 1, comm: swapper Not tainted 2.6.31-tip #208
[ 4.143943] Call Trace:
[ 4.152754] [<ffffffff81195f8b>] ? sysfs_add_one+0x11b/0x150
[ 4.161639] [<ffffffff81053da0>] warn_slowpath_common+0x80/0xd0
[ 4.170492] [<ffffffff81053e79>] warn_slowpath_fmt+0x69/0x70
[ 4.179283] [<ffffffff810909a5>] ? trace_hardirqs_on_caller+0x145/0x190
[ 4.188073] [<ffffffff81195e55>] ? sysfs_pathname+0x45/0x60
[ 4.197040] [<ffffffff81195e55>] ? sysfs_pathname+0x45/0x60
[ 4.205636] [<ffffffff81195e55>] ? sysfs_pathname+0x45/0x60
[ 4.213781] [<ffffffff81195f8b>] sysfs_add_one+0x11b/0x150
[ 4.221959] [<ffffffff81197113>] sysfs_do_create_link+0x103/0x170
[ 4.230121] [<ffffffff811971b3>] sysfs_create_link+0x13/0x20
[ 4.238289] [<ffffffff81385d6f>] device_add+0x2af/0x680
[ 4.246362] [<ffffffff812b0368>] ? __spin_lock_init+0x38/0x70
[ 4.254451] [<ffffffff8138615e>] device_register+0x1e/0x30
[ 4.262375] [<ffffffff813862c8>] device_create_vargs+0x158/0x180
[ 4.269873] [<ffffffff81386340>] device_create+0x50/0x60
[ 4.276845] [<ffffffff814980d7>] ? sound_insert_unit+0xc7/0x280
[ 4.283515] [<ffffffff8160b9e5>] ? _spin_unlock+0x35/0x60
[ 4.289919] [<ffffffff814980d7>] ? sound_insert_unit+0xc7/0x280
[ 4.296353] [<ffffffff814981b4>] sound_insert_unit+0x1a4/0x280
[ 4.302743] [<ffffffff81498415>] register_sound_special_device+0xa5/0x220
[ 4.309028] [<ffffffff814aba0f>] snd_register_oss_device+0x2cf/0x370
[ 4.315297] [<ffffffff814c2ce0>] register_oss_dsp+0x60/0x90
[ 4.321431] [<ffffffff810906ac>] ? mark_held_locks+0x6c/0x90
[ 4.327392] [<ffffffff81609565>] ? __mutex_unlock_slowpath+0x125/0x190
[ 4.333194] [<ffffffff810909a5>] ? trace_hardirqs_on_caller+0x145/0x190
[ 4.339054] [<ffffffff810909fd>] ? trace_hardirqs_on+0xd/0x10
[ 4.344824] [<ffffffff814c7427>] snd_pcm_oss_register_minor+0x167/0x260
[ 4.350747] [<ffffffff816095de>] ? mutex_unlock+0xe/0x10
[ 4.356658] [<ffffffff814ade73>] ? snd_timer_dev_register+0xf3/0x130
[ 4.362555] [<ffffffff814aaca5>] ? snd_device_register+0x65/0x80
[ 4.368582] [<ffffffff814bd54f>] ? snd_pcm_timer_init+0x14f/0x1a0
[ 4.374867] [<ffffffff814b20bd>] snd_pcm_dev_register+0x1ad/0x2c0
[ 4.381167] [<ffffffff814aac19>] snd_device_register_all+0x39/0x60
[ 4.387505] [<ffffffff814a50a5>] snd_card_register+0x25/0x180
[ 4.393781] [<ffffffff815fd181>] azx_probe+0x901/0xab0
[ 4.400107] [<ffffffff815039d0>] ? azx_send_cmd+0x0/0x1b0
[ 4.406376] [<ffffffff81503770>] ? azx_get_response+0x0/0x260
[ 4.412679] [<ffffffff81502bb0>] ? azx_attach_pcm_stream+0x0/0x240
[ 4.419127] [<ffffffff815026f0>] ? azx_bus_reset+0x0/0x90
[ 4.425509] [<ffffffff812c19e5>] ? pci_match_device+0x25/0xe0
[ 4.431956] [<ffffffff812c1897>] local_pci_probe+0x17/0x20
[ 4.438338] [<ffffffff812c29c8>] pci_device_probe+0x88/0xb0
[ 4.444611] [<ffffffff8138887b>] ? driver_sysfs_add+0x6b/0x90
[ 4.450887] [<ffffffff813889cd>] driver_probe_device+0x9d/0x1b0
[ 4.457114] [<ffffffff81388b7b>] __driver_attach+0x9b/0xb0
[ 4.463236] [<ffffffff81388ae0>] ? __driver_attach+0x0/0xb0
[ 4.469246] [<ffffffff813880c3>] bus_for_each_dev+0x73/0xa0
[ 4.475388] [<ffffffff81388801>] driver_attach+0x21/0x30
[ 4.481453] [<ffffffff81387928>] bus_add_driver+0x268/0x2e0
[ 4.487467] [<ffffffff819e5c1d>] ? alsa_card_azx_init+0x0/0x1b
[ 4.493588] [<ffffffff81388ed1>] driver_register+0x81/0x170
[ 4.499698] [<ffffffff819e5c1d>] ? alsa_card_azx_init+0x0/0x1b
[ 4.505845] [<ffffffff812c2eaf>] __pci_register_driver+0x6f/0xf0
[ 4.511990] [<ffffffff819e5c1d>] ? alsa_card_azx_init+0x0/0x1b
[ 4.518042] [<ffffffff819e5c36>] alsa_card_azx_init+0x19/0x1b
[ 4.524055] [<ffffffff8100904d>] do_one_initcall+0x3d/0x190
[ 4.530000] [<ffffffff819b6afd>] kernel_init+0x16a/0x1c2
[ 4.535935] [<ffffffff8100c7da>] child_rip+0xa/0x20
[ 4.541918] [<ffffffff810487ff>] ? finish_task_switch+0x7f/0xe0
[ 4.547955] [<ffffffff8160b90b>] ? _spin_unlock_irq+0x3b/0x60
[ 4.554049] [<ffffffff8100c140>] ? restore_args+0x0/0x30
[ 4.560138] [<ffffffff819b6993>] ? kernel_init+0x0/0x1c2
[ 4.566135] [<ffffffff8100c7d0>] ? child_rip+0x0/0x20
[ 4.572366] ---[ end trace 36623c312af01a26 ]---


Thanks,
Frederic.



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