linux-kernel - WARNING: at fs/sysfs/dir.c:455 sysfs_add

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Message-ID: <SNT123-W25CD831B5B4A5DF8D1B44EDB960@phx.gbl>
Date:	Tue, 3 Jan 2012 14:45:06 -0600
From:	Greg White <pcguy11@...e.com>
To:	<linux-kernel@...r.kernel.org>
Subject: WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0xc1/0xf0()‏‏


Hi, 
 
I just installed Linux on my HP 6200 PC using EFI.  The ubuntu lucid kernel caused my computer to freeze during shutdown and reboots.  So I downloaded 3.1.6 from kernel.org and compiled my own kernel and it works fine except for the following messages in my dmesg:
  
[2.295957] ------------[ cut here ]------------
[2.295962] WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0xc1/0xf0()
[2.295964] Hardware name: HP Compaq 6200 Pro Small Form Factor
[2.295966] sysfs: cannot create duplicate filename '/firmware/efi/vars/SlotPresent-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9'
[2.295969] Modules linked in:
[2.295972] Pid: 1, comm: swapper Not tainted 3.1.6 #1
[2.295974] Call Trace:
[2.295979]  [<ffffffff81061c4f>] warn_slowpath_common+0x7f/0xc0
[2.295982]  [<ffffffff81061d46>] warn_slowpath_fmt+0x46/0x50
[2.295985]  [<ffffffff811c6a91>] sysfs_add_one+0xc1/0xf0
[2.295988]  [<ffffffff811c6b41>] create_dir+0x81/0xd0
[2.295991]  [<ffffffff811c6c0d>] sysfs_create_dir+0x7d/0xd0
[2.295995]  [<ffffffff812fc6d7>] kobject_add_internal+0xb7/0x200
[2.295998]  [<ffffffff812fc938>] kobject_add_varg+0x38/0x60
[2.296001]  [<ffffffff812fc9b3>] kobject_init_and_add+0x53/0x70
[2.296004]  [<ffffffff81304f10>] ? sprintf+0x40/0x50
[2.296008]  [<ffffffff814d8184>] efivar_create_sysfs_entry+0x124/0x1b0
[2.296011]  [<ffffffff814d8929>] register_efivars+0xc9/0x3c0
[2.296016]  [<ffffffff81cfeb55>] ? edd_init+0x355/0x355
[2.296019]  [<ffffffff81cfebfe>] efivars_init+0xa9/0xf7
[2.296023]  [<ffffffff81002043>] do_one_initcall+0x43/0x190
[2.296026]  [<ffffffff81cc3680>] kernel_init+0xcd/0x151
[2.296030]  [<ffffffff815fbe74>] kernel_thread_helper+0x4/0x10
[2.296033]  [<ffffffff81cc35b3>] ? parse_early_options+0x20/0x20
[2.296036]  [<ffffffff815fbe70>] ? gs_change+0x13/0x13
[2.296041] ---[ end trace 629518364de3e84b ]---
[2.296043] kobject_add_internal failed for 
SlotPresent-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9 with -EEXIST, don't try to register things with the same name in the same directory.
[2.296048] Pid: 1, comm: swapper Tainted: G        W   3.1.6 #1
[2.296050] Call Trace:
[2.296052]  [<ffffffff812fc77d>] kobject_add_internal+0x15d/0x200
[2.296055]  [<ffffffff812fc938>] kobject_add_varg+0x38/0x60
[2.296058]  [<ffffffff812fc9b3>] kobject_init_and_add+0x53/0x70
[2.296061]  [<ffffffff81304f10>] ? sprintf+0x40/0x50
[2.296064]  [<ffffffff814d8184>] efivar_create_sysfs_entry+0x124/0x1b0
[2.296067]  [<ffffffff814d8929>] register_efivars+0xc9/0x3c0
[2.296070]  [<ffffffff81cfeb55>] ? edd_init+0x355/0x355
[2.296073]  [<ffffffff81cfebfe>] efivars_init+0xa9/0xf7
[2.296076]  [<ffffffff81002043>] do_one_initcall+0x43/0x190
[2.296079]  [<ffffffff81cc3680>] kernel_init+0xcd/0x151
[2.296082]  [<ffffffff815fbe74>] kernel_thread_helper+0x4/0x10
[2.296085]  [<ffffffff81cc35b3>] ? parse_early_options+0x20/0x20
[2.296088]  [<ffffffff815fbe70>] ? gs_change+0x13/0x13
[2.296167] ------------[ cut here ]------------
[2.296170] WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0xc1/0xf0()
[2.296172] Hardware name: HP Compaq 6200 Pro Small Form Factor
[2.296174] sysfs: cannot create duplicate filename '/firmware/efi/vars/FrontUsbPresent-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9'
[2.296177] Modules linked in:
[2.296179] Pid: 1, comm: swapper Tainted: G        W   3.1.6 #1
[2.296181] Call Trace:
[2.296184]  [<ffffffff81061c4f>] warn_slowpath_common+0x7f/0xc0
[2.296187]  [<ffffffff81061d46>] warn_slowpath_fmt+0x46/0x50
[2.296190]  [<ffffffff811c6a91>] sysfs_add_one+0xc1/0xf0
[2.296193]  [<ffffffff811c6b41>] create_dir+0x81/0xd0
[2.296195]  [<ffffffff811c6c0d>] sysfs_create_dir+0x7d/0xd0
[2.296199]  [<ffffffff812fc6d7>] kobject_add_internal+0xb7/0x200
[2.296202]  [<ffffffff812fc938>] kobject_add_varg+0x38/0x60
[2.296204]  [<ffffffff812fc9b3>] kobject_init_and_add+0x53/0x70
[2.296207]  [<ffffffff81304f10>] ? sprintf+0x40/0x50
[2.296210]  [<ffffffff814d8184>] efivar_create_sysfs_entry+0x124/0x1b0
[2.296213]  [<ffffffff814d8929>] register_efivars+0xc9/0x3c0
[2.296216]  [<ffffffff81cfeb55>] ? edd_init+0x355/0x355
[2.296219]  [<ffffffff81cfebfe>] efivars_init+0xa9/0xf7
[2.296222]  [<ffffffff81002043>] do_one_initcall+0x43/0x190
[2.296225]  [<ffffffff81cc3680>] kernel_init+0xcd/0x151
[2.296228]  [<ffffffff815fbe74>] kernel_thread_helper+0x4/0x10
[2.296231]  [<ffffffff81cc35b3>] ? parse_early_options+0x20/0x20
[2.296233]  [<ffffffff815fbe70>] ? gs_change+0x13/0x13
[2.296236] ---[ end trace 629518364de3e84c ]---
[2.296249] kobject_add_internal failed for 
FrontUsbPresent-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9 with -EEXIST, don't try to register things with the same name in the same directory.
[2.296254] Pid: 1, comm: swapper Tainted: G        W   3.1.6 #1
[2.296256] Call Trace:
[2.296259]  [<ffffffff812fc77d>] kobject_add_internal+0x15d/0x200
[2.296262]  [<ffffffff812fc938>] kobject_add_varg+0x38/0x60
[2.296265]  [<ffffffff812fc9b3>] kobject_init_and_add+0x53/0x70
[2.296267]  [<ffffffff81304f10>] ? sprintf+0x40/0x50
[2.296270]  [<ffffffff814d8184>] efivar_create_sysfs_entry+0x124/0x1b0
[2.296273]  [<ffffffff814d8929>] register_efivars+0xc9/0x3c0
[2.296276]  [<ffffffff81cfeb55>] ? edd_init+0x355/0x355
[2.296279]  [<ffffffff81cfebfe>] efivars_init+0xa9/0xf7
[2.296282]  [<ffffffff81002043>] do_one_initcall+0x43/0x190
[2.296285]  [<ffffffff81cc3680>] kernel_init+0xcd/0x151
[2.296287]  [<ffffffff815fbe74>] kernel_thread_helper+0x4/0x10
[2.296291]  [<ffffffff81cc35b3>] ? parse_early_options+0x20/0x20
[2.296293]  [<ffffffff815fbe70>] ? gs_change+0x13/0x13
[2.296372] ------------[ cut here ]------------
[2.296374] WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0xc1/0xf0()
[2.296376] Hardware name: HP Compaq 6200 Pro Small Form Factor
[2.296378] sysfs: cannot create duplicate filename '/firmware/efi/vars/RearUsbPresent-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9'
[2.296382] Modules linked in:
[2.296383] Pid: 1, comm: swapper Tainted: G        W   3.1.6 #1
[2.296385] Call Trace:
[2.296388]  [<ffffffff81061c4f>] warn_slowpath_common+0x7f/0xc0
[2.296391]  [<ffffffff81061d46>] warn_slowpath_fmt+0x46/0x50
[2.296394]  [<ffffffff811c6a91>] sysfs_add_one+0xc1/0xf0
[2.296397]  [<ffffffff811c6b41>] create_dir+0x81/0xd0
[2.296400]  [<ffffffff811c6c0d>] sysfs_create_dir+0x7d/0xd0
[2.296403]  [<ffffffff812fc6d7>] kobject_add_internal+0xb7/0x200
[2.296406]  [<ffffffff812fc938>] kobject_add_varg+0x38/0x60
[2.296409]  [<ffffffff812fc9b3>] kobject_init_and_add+0x53/0x70
[2.296411]  [<ffffffff81304f10>] ? sprintf+0x40/0x50
[2.296414]  [<ffffffff814d8184>] efivar_create_sysfs_entry+0x124/0x1b0
[2.296417]  [<ffffffff814d8929>] register_efivars+0xc9/0x3c0
[2.296420]  [<ffffffff81cfeb55>] ? edd_init+0x355/0x355
[2.296423]  [<ffffffff81cfebfe>] efivars_init+0xa9/0xf7
[2.296426]  [<ffffffff81002043>] do_one_initcall+0x43/0x190
[2.296429]  [<ffffffff81cc3680>] kernel_init+0xcd/0x151
[2.296431]  [<ffffffff815fbe74>] kernel_thread_helper+0x4/0x10
[2.296435]  [<ffffffff81cc35b3>] ? parse_early_options+0x20/0x20
[2.296437]  [<ffffffff815fbe70>] ? gs_change+0x13/0x13
[2.296439] ---[ end trace 629518364de3e84d ]---
[2.296441] kobject_add_internal failed for 
RearUsbPresent-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9 with -EEXIST, don't try to register things with the same name in the same directory.
[2.296446] Pid: 1, comm: swapper Tainted: G        W   3.1.6 #1
[2.296448] Call Trace:
[2.296450]  [<ffffffff812fc77d>] kobject_add_internal+0x15d/0x200
[2.296453]  [<ffffffff812fc938>] kobject_add_varg+0x38/0x60
[2.296456]  [<ffffffff812fc9b3>] kobject_init_and_add+0x53/0x70
[2.296459]  [<ffffffff81304f10>] ? sprintf+0x40/0x50
[2.296461]  [<ffffffff814d8184>] efivar_create_sysfs_entry+0x124/0x1b0
[2.296464]  [<ffffffff814d8929>] register_efivars+0xc9/0x3c0
[2.296468]  [<ffffffff81cfeb55>] ? edd_init+0x355/0x355
[2.296471]  [<ffffffff81cfebfe>] efivars_init+0xa9/0xf7
[2.296474]  [<ffffffff81002043>] do_one_initcall+0x43/0x190
[2.296477]  [<ffffffff81cc3680>] kernel_init+0xcd/0x151
[2.296479]  [<ffffffff815fbe74>] kernel_thread_helper+0x4/0x10
[2.296482]  [<ffffffff81cc35b3>] ? parse_early_options+0x20/0x20
[2.296485]  [<ffffffff815fbe70>] ? gs_change+0x13/0x13
[2.296563] ------------[ cut here ]------------
[2.296565] WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0xc1/0xf0()
[2.296568] Hardware name: HP Compaq 6200 Pro Small Form Factor
[2.296570] sysfs: cannot create duplicate filename '/firmware/efi/vars/InternalUsbPresent-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9'
[2.296573] Modules linked in:
[2.296575] Pid: 1, comm: swapper Tainted: G        W   3.1.6 #1
[2.296577] Call Trace:
[2.296579]  [<ffffffff81061c4f>] warn_slowpath_common+0x7f/0xc0
[2.296582]  [<ffffffff81061d46>] warn_slowpath_fmt+0x46/0x50
[2.296585]  [<ffffffff811c6a91>] sysfs_add_one+0xc1/0xf0
[2.296588]  [<ffffffff811c6b41>] create_dir+0x81/0xd0
[2.296591]  [<ffffffff811c6c0d>] sysfs_create_dir+0x7d/0xd0
[2.296594]  [<ffffffff812fc6d7>] kobject_add_internal+0xb7/0x200
[2.296597]  [<ffffffff812fc938>] kobject_add_varg+0x38/0x60
[2.296600]  [<ffffffff812fc9b3>] kobject_init_and_add+0x53/0x70
[2.296602]  [<ffffffff81304f10>] ? sprintf+0x40/0x50
[2.296605]  [<ffffffff814d8184>] efivar_create_sysfs_entry+0x124/0x1b0
[2.296608]  [<ffffffff814d8929>] register_efivars+0xc9/0x3c0
[2.296611]  [<ffffffff81cfeb55>] ? edd_init+0x355/0x355
[2.296614]  [<ffffffff81cfebfe>] efivars_init+0xa9/0xf7
[2.296617]  [<ffffffff81002043>] do_one_initcall+0x43/0x190
[2.296620]  [<ffffffff81cc3680>] kernel_init+0xcd/0x151
[2.296623]  [<ffffffff815fbe74>] kernel_thread_helper+0x4/0x10
[2.296626]  [<ffffffff81cc35b3>] ? parse_early_options+0x20/0x20
[2.296628]  [<ffffffff815fbe70>] ? gs_change+0x13/0x13
[2.296630] ---[ end trace 629518364de3e84e ]---
[2.296632] kobject_add_internal failed for 
InternalUsbPresent-ec87d643-eba4-4bb5-a1e5-3f3e36b20da9 with -EEXIST, don't try to register things with the same name in the same directory.
[2.296637] Pid: 1, comm: swapper Tainted: G        W   3.1.6 #1
[2.296639] Call Trace:
[2.296641]  [<ffffffff812fc77d>] kobject_add_internal+0x15d/0x200
[2.296644]  [<ffffffff812fc938>] kobject_add_varg+0x38/0x60
[2.296647]  [<ffffffff812fc9b3>] kobject_init_and_add+0x53/0x70
[2.296650]  [<ffffffff81304f10>] ? sprintf+0x40/0x50
[2.296653]  [<ffffffff814d8184>] efivar_create_sysfs_entry+0x124/0x1b0
[2.296655]  [<ffffffff814d8929>] register_efivars+0xc9/0x3c0
[2.296659]  [<ffffffff81cfeb55>] ? edd_init+0x355/0x355
[2.296662]  [<ffffffff81cfebfe>] efivars_init+0xa9/0xf7
[2.296665]  [<ffffffff81002043>] do_one_initcall+0x43/0x190
[2.296668]  [<ffffffff81cc3680>] kernel_init+0xcd/0x151
[2.296670]  [<ffffffff815fbe74>] kernel_thread_helper+0x4/0x10
[2.296673]  [<ffffffff81cc35b3>] ? parse_early_options+0x20/0x20
[2.296676]  [<ffffffff815fbe70>] ? gs_change+0x13/0x13
[2.296754] ------------[ cut here ]------------
[2.296756] WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0xc1/0xf0()
[2.296758] Hardware name: HP Compaq 6200 Pro Small Form Factor
[2.296760] sysfs: cannot create duplicate filename '/firmware/efi/vars/SetupFeatureSupport-b6ad93e3-19f7-4c85-aa72-80c57194dbc7'
[2.296763] Modules linked in:
[2.296765] Pid: 1, comm: swapper Tainted: G        W   3.1.6 #1
[2.296767] Call Trace:
[2.296770]  [<ffffffff81061c4f>] warn_slowpath_common+0x7f/0xc0
[2.296773]  [<ffffffff81061d46>] warn_slowpath_fmt+0x46/0x50
[2.296776]  [<ffffffff811c6a91>] sysfs_add_one+0xc1/0xf0
[2.296778]  [<ffffffff811c6b41>] create_dir+0x81/0xd0
[2.296781]  [<ffffffff811c6c0d>] sysfs_create_dir+0x7d/0xd0
[2.296784]  [<ffffffff812fc6d7>] kobject_add_internal+0xb7/0x200
[2.296787]  [<ffffffff812fc938>] kobject_add_varg+0x38/0x60
[2.296790]  [<ffffffff812fc9b3>] kobject_init_and_add+0x53/0x70
[2.296793]  [<ffffffff81304f10>] ? sprintf+0x40/0x50
[2.296795]  [<ffffffff814d8184>] efivar_create_sysfs_entry+0x124/0x1b0
[2.296798]  [<ffffffff814d8929>] register_efivars+0xc9/0x3c0
[2.296801]  [<ffffffff81cfeb55>] ? edd_init+0x355/0x355
[2.296804]  [<ffffffff81cfebfe>] efivars_init+0xa9/0xf7
[2.296807]  [<ffffffff81002043>] do_one_initcall+0x43/0x190
[2.296810]  [<ffffffff81cc3680>] kernel_init+0xcd/0x151
[2.296813]  [<ffffffff815fbe74>] kernel_thread_helper+0x4/0x10
[2.296816]  [<ffffffff81cc35b3>] ? parse_early_options+0x20/0x20
[2.296819]  [<ffffffff815fbe70>] ? gs_change+0x13/0x13
[2.296821] ---[ end trace 629518364de3e84f ]---
[2.296823] kobject_add_internal failed for 
SetupFeatureSupport-b6ad93e3-19f7-4c85-aa72-80c57194dbc7 with -EEXIST, don't try to register things with the same name in the same directory.
[2.296827] Pid: 1, comm: swapper Tainted: G        W   3.1.6 #1
[2.296829] Call Trace:
[2.296832]  [<ffffffff812fc77d>] kobject_add_internal+0x15d/0x200
[2.296835]  [<ffffffff812fc938>] kobject_add_varg+0x38/0x60
[2.296838]  [<ffffffff812fc9b3>] kobject_init_and_add+0x53/0x70
[2.296840]  [<ffffffff81304f10>] ? sprintf+0x40/0x50
[2.296843]  [<ffffffff814d8184>] efivar_create_sysfs_entry+0x124/0x1b0
[2.296846]  [<ffffffff814d8929>] register_efivars+0xc9/0x3c0
[2.296849]  [<ffffffff81cfeb55>] ? edd_init+0x355/0x355
[2.296852]  [<ffffffff81cfebfe>] efivars_init+0xa9/0xf7
[2.296855]  [<ffffffff81002043>] do_one_initcall+0x43/0x190
[2.296858]  [<ffffffff81cc3680>] kernel_init+0xcd/0x151
[2.296860]  [<ffffffff815fbe74>] kernel_thread_helper+0x4/0x10
[2.296864]  [<ffffffff81cc35b3>] ? parse_early_options+0x20/0x20
[2.296866]  [<ffffffff815fbe70>] ? gs_change+0x13/0x13
 
I am attaching the full dmesg and kernel config.  If you need anything else please email me as I am not subscribed to the list.

Thanks,
 
Greg                           
 		 	   		  
Download attachment "dmesg" of type "application/octet-stream" (82798 bytes)

Download attachment "config" of type "application/octet-stream" (134769 bytes)