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EHCI resume sysfs duplicates (was: Re: Linux 2.6.33-rc2 - Merry Christmas ...)

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From: Borislav Petkov
Subject: EHCI resume sysfs duplicates (was: Re: Linux 2.6.33-rc2 - Merry Christmas ...)
Date: Saturday, December 26, 2009 - 2:36 am

Hi,

I'm getting the following warning upon resume.
Kernel is 2.6.33-rc2 + one unrelated PCI fix¹

------------[ cut here ]------------
WARNING: at fs/sysfs/dir.c:477 sysfs_add_one+0x107/0x121()
Hardware name: System Product Name
sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:12.2/usb1/1-2/1-2:1.0/ep_81'
Modules linked in: binfmt_misc kvm_amd kvm powernow_k8 cpufreq_ondemand cpufreq_powersave cpufreq_userspace freq_table c
pufreq_conservative ipv6 vfat fat 8250_pnp 8250 pcspkr serial_core ohci_hcd k10temp edac_core
Pid: 279, comm: khubd Not tainted 2.6.33-rc2-00001-g6d7daec #1
Call Trace:
 [<ffffffff8103b010>] warn_slowpath_common+0x7c/0x94
 [<ffffffff8103b07f>] warn_slowpath_fmt+0x41/0x43
 [<ffffffff8112c448>] sysfs_add_one+0x107/0x121
 [<ffffffff8118b8c1>] ? kobject_add_internal+0x9e/0x1a0
 [<ffffffff8112c9d8>] create_dir+0x5d/0x98
 [<ffffffff8112ca50>] sysfs_create_dir+0x3d/0x50
 [<ffffffff813eb98b>] ? _raw_spin_unlock+0x35/0x52
 [<ffffffff8118b902>] kobject_add_internal+0xdf/0x1a0
 [<ffffffff8118ba99>] kobject_add_varg+0x41/0x50
 [<ffffffff8118bb63>] kobject_add+0x64/0x66
 [<ffffffff8118b79a>] ? kobject_get+0x1a/0x22
 [<ffffffff812930dc>] device_add+0xad/0x4e6
 [<ffffffff81195a7b>] ? __raw_spin_lock_init+0x31/0x52
 [<ffffffff81293533>] device_register+0x1e/0x22
 [<ffffffff812ea5ae>] usb_create_ep_devs+0xfd/0x127
 [<ffffffff812e3604>] create_intf_ep_devs+0x50/0x6c
 [<ffffffff812e4a81>] usb_set_interface+0x228/0x23a
 [<ffffffff813eb938>] ? _raw_spin_unlock_irqrestore+0x5b/0x79
 [<ffffffff812de26d>] usb_reset_and_verify_device+0x412/0x497
 [<ffffffff812de577>] usb_port_resume+0x164/0x25b
 [<ffffffff813e9404>] ? mutex_unlock+0xe/0x10
 [<ffffffff812edc84>] generic_resume+0x1c/0x1e
 [<ffffffff812e5b1c>] usb_resume_device+0x3a/0x3c
 [<ffffffff812e61a9>] usb_resume_both+0x70/0x10a
 [<ffffffff812e6e6f>] usb_external_resume_device+0x39/0x77
 [<ffffffff812dfd51>] hub_thread+0x4eb/0xfc6
 [<ffffffff813eb8c0>] ? _raw_spin_unlock_irq+0x41/0x5e
 [<ffffffff81057a00>] ? autoremove_wake_function+0x0/0x39
 [<ffffffff813eb938>] ? _raw_spin_unlock_irqrestore+0x5b/0x79
 [<ffffffff812df866>] ? hub_thread+0x0/0xfc6
 [<ffffffff81057571>] kthread+0x7f/0x87
 [<ffffffff810030e4>] kernel_thread_helper+0x4/0x10
 [<ffffffff813eb8c0>] ? _raw_spin_unlock_irq+0x41/0x5e
 [<ffffffff813ebe54>] ? restore_args+0x0/0x30
 [<ffffffff810574f2>] ? kthread+0x0/0x87
 [<ffffffff810030e0>] ? kernel_thread_helper+0x0/0x10
---[ end trace 044a12284a40512a ]---

.config and dmesg attached.


¹http://git.kernel.org/?p=linux/kernel/git/jbarnes/pci-2.6.git;a=commit;h=2820f333e3b4ad96590093efbed7b3400bcf492b
-- 
Regards/Gruss,
    Boris.
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Messages in current thread:
Linux 2.6.33-rc2 - Merry Christmas ..., Linus Torvalds, (Thu Dec 24, 3:00 pm)
-tip: origin tree boot crash, Ingo Molnar, (Fri Dec 25, 3:27 am)
Re: Linux 2.6.33-rc2 - Blank screen for Intel KMS, Miguel Calleja, (Fri Dec 25, 6:10 am)
Re: -tip: origin tree boot crash, Dmitry Torokhov, (Fri Dec 25, 12:49 pm)
Re: Linux 2.6.33-rc2 - Merry Christmas ..., Borislav Petkov, (Fri Dec 25, 1:00 pm)
Re: Linux 2.6.33-rc2 - Merry Christmas ..., Borislav Petkov, (Fri Dec 25, 2:50 pm)
Re: Linux 2.6.33-rc2 - Merry Christmas ..., Jesse Barnes, (Fri Dec 25, 11:00 pm)
Re: Linux 2.6.33-rc2 - Merry Christmas ..., Borislav Petkov, (Sat Dec 26, 1:02 am)
EHCI resume sysfs duplicates (was: Re: Linux 2.6.33-rc2 - ..., Borislav Petkov, (Sat Dec 26, 2:36 am)
drm_vm.c:drm_mmap: possible circular locking dependency de ..., Borislav Petkov, (Sat Dec 26, 2:45 am)
Re: -tip: origin tree boot crash, Len Brown, (Sat Dec 26, 1:17 pm)
Re: -tip: origin tree boot crash, Len Brown, (Sat Dec 26, 1:19 pm)
Re: -tip: origin tree boot crash, Len Brown, (Sat Dec 26, 9:20 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., KOSAKI Motohiro, (Sun Dec 27, 5:40 pm)
Re: -tip: origin tree boot crash, Ingo Molnar, (Mon Dec 28, 2:44 am)
Re: -tip: origin tree boot crash, Ingo Molnar, (Mon Dec 28, 5:01 am)
Re: -tip: origin tree boot crash, Paul Rolland, (Mon Dec 28, 8:02 am)
Re: -tip: origin tree boot crash, Paul Rolland, (Mon Dec 28, 9:15 am)
Re: -tip: origin tree boot crash, Paul Rolland, (Mon Dec 28, 9:53 am)
Re: -tip: origin tree boot crash, Dmitry Torokhov, (Mon Dec 28, 1:17 pm)
Re: Linux 2.6.33-rc2 - Blank screen for Intel KMS, Miguel Calleja, (Tue Dec 29, 2:50 am)
Re: Linux 2.6.33-rc2 - Blank screen for Intel KMS, Rafael J. Wysocki, (Tue Dec 29, 7:01 am)
Re: -tip: origin tree boot crash, Len Brown, (Tue Dec 29, 11:14 pm)
[PATCH] wmi: check find_guid() return value to prevent oops, Len Brown, (Tue Dec 29, 11:19 pm)
[PATCH] dell-wmi: sys_init_module: 'dell_wmi'-&gt;init suspic ..., Len Brown, (Tue Dec 29, 11:21 pm)
Re: -tip: origin tree boot crash, Paul Rolland, (Wed Dec 30, 12:13 am)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Linus Torvalds, (Wed Dec 30, 2:10 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Eric W. Biederman, (Wed Dec 30, 2:34 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Linus Torvalds, (Wed Dec 30, 3:03 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Eric W. Biederman, (Thu Dec 31, 1:40 am)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Eric W. Biederman, (Thu Dec 31, 1:40 am)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Linus Torvalds, (Thu Dec 31, 12:04 pm)
[PATCH] sysfs: Cache the last sysfs_dirent to improve read ..., Eric W. Biederman, (Fri Jan 1, 6:58 am)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Eric W. Biederman, (Fri Jan 1, 8:16 am)
Re: [PATCH] sysfs: Cache the last sysfs_dirent to improve ..., Borislav Petkov, (Fri Jan 1, 8:33 am)
Re: [PATCH] sysfs: Cache the last sysfs_dirent to improve ..., Linus Torvalds, (Fri Jan 1, 11:56 am)
[PATCH] sysfs: Cache the last sysfs_dirent to improve read ..., Eric W. Biederman, (Fri Jan 1, 3:43 pm)
Re: [PATCH] sysfs: Cache the last sysfs_dirent to improve ..., Linus Torvalds, (Fri Jan 1, 4:10 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Tejun Heo, (Fri Jan 1, 7:59 pm)
Re: [PATCH] sysfs: Cache the last sysfs_dirent to improve ..., Greg KH, (Fri Jan 1, 10:59 pm)
Re: [PATCH] sysfs: Cache the last sysfs_dirent to improve ..., Borislav Petkov, (Sat Jan 2, 8:40 am)
[PATCH] sysfs: Add lockdep annotations for the sysfs activ ..., Eric W. Biederman, (Sat Jan 2, 2:37 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Eric W. Biederman, (Sat Jan 2, 2:49 pm)
Re: [PATCH] sysfs: Add lockdep annotations for the sysfs a ..., Tejun Heo, (Sat Jan 2, 5:02 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Tejun Heo, (Sat Jan 2, 5:32 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Eric W. Biederman, (Sat Jan 2, 7:06 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Tejun Heo, (Sat Jan 2, 10:01 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Eric W. Biederman, (Sat Jan 2, 10:38 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Tejun Heo, (Sat Jan 2, 11:05 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Dmitry Torokhov, (Sun Jan 3, 12:47 am)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Eric W. Biederman, (Sun Jan 3, 3:57 am)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Eric W. Biederman, (Sun Jan 3, 4:14 am)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Dmitry Torokhov, (Mon Jan 4, 11:57 am)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Dmitry Torokhov, (Mon Jan 4, 12:16 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Eric W. Biederman, (Mon Jan 4, 12:43 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Dmitry Torokhov, (Mon Jan 4, 2:12 pm)
Re: drm_vm.c:drm_mmap: possible circular locking dependenc ..., Tejun Heo, (Mon Jan 4, 4:09 pm)
Re: [PATCH] sysfs: Add lockdep annotations for the sysfs a ..., Ming Lei, (Sun Jan 17, 9:26 am)
Re: [PATCH] sysfs: Add lockdep annotations for the sysfs a ..., Eric W. Biederman, (Sun Jan 17, 10:18 am)
Re: [PATCH] sysfs: Add lockdep annotations for the sysfs a ..., Dominik Brodowski, (Sun Jan 17, 11:03 am)