Hi:
with current kernel:head (kernel-desktop-3.11.1-5.1.g50dfbd0) I am
getting a flood of this warnings..
[ 1245.184069] ------------[ cut here ]------------
[ 1245.184079] WARNING: CPU: 3 PID: 2525 at
/home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.1/linux-3.11/fs/sysfs/dir.c:530
sysfs_add_one+0x9c/0xc0()
[ 1245.184082] sysfs: cannot create duplicate filename
'/fs/btrfs/00000000-0000-0000-0000-000000000000'
[ 1245.184083] Modules linked in: fuse ufs qnx4 hfsplus hfs minix vfat
msdos fat jfs xfs reiserfs st bnep bluetooth af_packet cachefiles
fscache iTCO_wdt snd_hda_codec_hdmi gpio_ich iTCO_vendor_support mxm_wmi
dcdbas coretemp kvm_intel nvidia(PO) kvm serio_raw pcspkr i2c_i801
joydev arc4 snd_hda_codec_realtek snd_usb_audio snd_usbmidi_lib uvcvideo
snd_rawmidi videobuf2_core snd_seq_device videodev videobuf2_vmalloc
videobuf2_memops iwldvm mac80211 snd_hda_intel snd_hda_codec snd_hwdep
lpc_ich mfd_core snd_pcm iwlwifi snd_timer cfg80211 snd r8169 rfkill mii
acpi_cpufreq wmi drm button soundcore mperf i7core_edac processor
edac_core snd_page_alloc shpchp thermal_sys dm_mod btrfs raid6_pq
zlib_deflate xor ata_generic sr_mod libcrc32c crc32c_intel cdrom
usb_storage xhci_hcd pata_jmicron hid_logitech_dj
[ 1245.184153] sg autofs4
[ 1245.184157] CPU: 3 PID: 2525 Comm: mount Tainted: P O
3.11.1-5.g50dfbd0-desktop #1
[ 1245.184160] Hardware name: DELL Inc. Studio XPS 435T/9000/0X501H,
BIOS A16 02/04/2010
[ 1245.184162] 0000000000000009 ffffffff815a93c7 ffff8801096b9a80
ffffffff81050e02
[ 1245.184166] 00000000ffffffef ffff8801096b9ad0 ffff8801096b9b10
ffff8801119ea000
[ 1245.184170] 0000000000000000 ffffffff81050e67 ffffffff81801978
ffffffff00000020
[ 1245.184175] Call Trace:
[ 1245.184188] [<ffffffff81004988>] dump_trace+0x88/0x310
[ 1245.184194] [<ffffffff81004ce0>] show_stack_log_lvl+0xd0/0x1d0
[ 1245.184198] [<ffffffff8100612c>] show_stack+0x1c/0x50
[ 1245.184206] [<ffffffff815a93c7>] dump_stack+0x50/0x89
[ 1245.184212] [<ffffffff81050e02>] warn_slowpath_common+0x72/0x90
[ 1245.184218] [<ffffffff81050e67>] warn_slowpath_fmt+0x47/0x50
[ 1245.184223] [<ffffffff811f44dc>] sysfs_add_one+0x9c/0xc0
[ 1245.184229] [<ffffffff811f4682>] create_dir+0x62/0xc0
[ 1245.184234] [<ffffffff811f49a9>] sysfs_create_dir+0x79/0xd0
[ 1245.184240] [<ffffffff812d20a0>] kobject_add_internal+0xc0/0x300
[ 1245.184246] [<ffffffff812d2565>] kobject_add+0x65/0xb0
[ 1245.184272] [<ffffffffa015f94c>] btrfs_sysfs_add_one+0x4c/0x150 [btrfs]
[ 1245.184345] [<ffffffffa011f0ca>] btrfs_mount+0x53a/0x7f0 [btrfs]
[ 1245.184361] [<ffffffff8118995f>] mount_fs+0x2f/0x1a0
[ 1245.184368] [<ffffffff811a2705>] vfs_kern_mount+0x55/0xe0
[ 1245.184383] [<ffffffffa011ece4>] btrfs_mount+0x154/0x7f0 [btrfs]
[ 1245.184396] [<ffffffff8118995f>] mount_fs+0x2f/0x1a0
[ 1245.184402] [<ffffffff811a2705>] vfs_kern_mount+0x55/0xe0
[ 1245.184407] [<ffffffff811a4b80>] do_mount+0x230/0xa40
[ 1245.184415] [<ffffffff811a540c>] SyS_mount+0x7c/0xc0
[ 1245.184420] [<ffffffff815b6fed>] system_call_fastpath+0x1a/0x1f
[ 1245.184427] [<00007fba981d1f5a>] 0x7fba981d1f59
[ 1245.184429] ---[ end trace 848ff4eadca66e69 ]---
[ 1245.184432] ------------[ cut here ]------------
[ 1245.184436] WARNING: CPU: 3 PID: 2525 at
/home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.1/linux-3.11/lib/kobject.c:197
kobject_add_internal+0x1f4/0x300()
[ 1245.184439] kobject_add_internal failed for
00000000-0000-0000-0000-000000000000 with -EEXIST, don't try to register
things with the same name in the same directory.
[ 1245.184440] Modules linked in: fuse ufs qnx4 hfsplus hfs minix vfat
msdos fat jfs xfs reiserfs st bnep bluetooth af_packet cachefiles
fscache iTCO_wdt snd_hda_codec_hdmi gpio_ich iTCO_vendor_support mxm_wmi
dcdbas coretemp kvm_intel nvidia(PO) kvm serio_raw pcspkr i2c_i801
joydev arc4 snd_hda_codec_realtek snd_usb_audio snd_usbmidi_lib uvcvideo
snd_rawmidi videobuf2_core snd_seq_device videodev videobuf2_vmalloc
videobuf2_memops iwldvm mac80211 snd_hda_intel snd_hda_codec snd_hwdep
lpc_ich mfd_core snd_pcm iwlwifi snd_timer cfg80211 snd r8169 rfkill mii
acpi_cpufreq wmi drm button soundcore mperf i7core_edac processor
edac_core snd_page_alloc shpchp thermal_sys dm_mod btrfs raid6_pq
zlib_deflate xor ata_generic sr_mod libcrc32c crc32c_intel cdrom
usb_storage xhci_hcd pata_jmicron hid_logitech_dj
[ 1245.184493] sg autofs4
[ 1245.184496] CPU: 3 PID: 2525 Comm: mount Tainted: P W O
3.11.1-5.g50dfbd0-desktop #1
[ 1245.184498] Hardware name: DELL Inc. Studio XPS 435T/9000/0X501H,
BIOS A16 02/04/2010
[ 1245.184500] 0000000000000009 ffffffff815a93c7 ffff8801096b9b20
ffffffff81050e02
[ 1245.184504] ffff880109695020 ffff8801096b9b70 0000000000000000
ffff8801b5231258
[ 1245.184507] ffff880109695020 ffffffff81050e67 ffffffff81819908
ffff880100000028
[ 1245.184511] Call Trace:
[ 1245.184519] [<ffffffff81004988>] dump_trace+0x88/0x310
[ 1245.184524] [<ffffffff81004ce0>] show_stack_log_lvl+0xd0/0x1d0
[ 1245.184528] [<ffffffff8100612c>] show_stack+0x1c/0x50
[ 1245.184533] [<ffffffff815a93c7>] dump_stack+0x50/0x89
[ 1245.184538] [<ffffffff81050e02>] warn_slowpath_common+0x72/0x90
[ 1245.184543] [<ffffffff81050e67>] warn_slowpath_fmt+0x47/0x50
[ 1245.184547] [<ffffffff812d21d4>] kobject_add_internal+0x1f4/0x300
[ 1245.184555] [<ffffffff812d2565>] kobject_add+0x65/0xb0
[ 1245.184576] [<ffffffffa015f94c>] btrfs_sysfs_add_one+0x4c/0x150 [btrfs]
[ 1245.184644] [<ffffffffa011f0ca>] btrfs_mount+0x53a/0x7f0 [btrfs]
[ 1245.184658] [<ffffffff8118995f>] mount_fs+0x2f/0x1a0
[ 1245.184663] [<ffffffff811a2705>] vfs_kern_mount+0x55/0xe0
[ 1245.184678] [<ffffffffa011ece4>] btrfs_mount+0x154/0x7f0 [btrfs]
[ 1245.184691] [<ffffffff8118995f>] mount_fs+0x2f/0x1a0
[ 1245.184696] [<ffffffff811a2705>] vfs_kern_mount+0x55/0xe0
[ 1245.184701] [<ffffffff811a4b80>] do_mount+0x230/0xa40
[ 1245.184708] [<ffffffff811a540c>] SyS_mount+0x7c/0xc0
[ 1245.184714] [<ffffffff815b6fed>] system_call_fastpath+0x1a/0x1f
[ 1245.184720] [<00007fba981d1f5a>] 0x7fba981d1f59
[ 1245.184722] ---[ end trace 848ff4eadca66e6a ]---
[ 1245.210844] device fsid b0e04cde-c8c1-4669-9155-a25134c2eae7 devid 1
transid 394224 /dev/sda2
[ 1245.227162] ------------[ cut here ]------------
[ 1245.227172] WARNING: CPU: 4 PID: 2539 at
/home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.1/linux-3.11/fs/sysfs/dir.c:530
sysfs_add_one+0x9c/0xc0()
[ 1245.227174] sysfs: cannot create duplicate filename
'/fs/btrfs/00000000-0000-0000-0000-000000000000'
[ 1245.227176] Modules linked in: fuse ufs qnx4 hfsplus hfs minix vfat
msdos fat jfs xfs reiserfs st bnep bluetooth af_packet cachefiles
fscache iTCO_wdt snd_hda_codec_hdmi gpio_ich iTCO_vendor_support mxm_wmi
dcdbas coretemp kvm_intel nvidia(PO) kvm serio_raw pcspkr i2c_i801
joydev arc4 snd_hda_codec_realtek snd_usb_audio snd_usbmidi_lib uvcvideo
snd_rawmidi videobuf2_core snd_seq_device videodev videobuf2_vmalloc
videobuf2_memops iwldvm mac80211 snd_hda_intel snd_hda_codec snd_hwdep
lpc_ich mfd_core snd_pcm iwlwifi snd_timer cfg80211 snd r8169 rfkill mii
acpi_cpufreq wmi drm button soundcore mperf i7core_edac processor
edac_core snd_page_alloc shpchp thermal_sys dm_mod btrfs raid6_pq
zlib_deflate xor ata_generic sr_mod libcrc32c crc32c_intel cdrom
usb_storage xhci_hcd pata_jmicron hid_logitech_dj
[ 1245.227244] sg autofs4
[ 1245.227248] CPU: 4 PID: 2539 Comm: mount Tainted: P W O
3.11.1-5.g50dfbd0-desktop #1
[ 1245.227251] Hardware name: DELL Inc. Studio XPS 435T/9000/0X501H,
BIOS A16 02/04/2010
[ 1245.227253] 0000000000000009 ffffffff815a93c7 ffff8801025c3bb0
ffffffff81050e02
[ 1245.227257] 00000000ffffffef ffff8801025c3c00 ffff8801025c3c40
ffff88018c5c8000
[ 1245.227261] 0000000000000000 ffffffff81050e67 ffffffff81801978
ffffffff00000020
[ 1245.227265] Call Trace:
[ 1245.227279] [<ffffffff81004988>] dump_trace+0x88/0x310
[ 1245.227284] [<ffffffff81004ce0>] show_stack_log_lvl+0xd0/0x1d0
[ 1245.227289] [<ffffffff8100612c>] show_stack+0x1c/0x50
[ 1245.227296] [<ffffffff815a93c7>] dump_stack+0x50/0x89
[ 1245.227303] [<ffffffff81050e02>] warn_slowpath_common+0x72/0x90
[ 1245.227309] [<ffffffff81050e67>] warn_slowpath_fmt+0x47/0x50
[ 1245.227313] [<ffffffff811f44dc>] sysfs_add_one+0x9c/0xc0
[ 1245.227319] [<ffffffff811f4682>] create_dir+0x62/0xc0
[ 1245.227324] [<ffffffff811f49a9>] sysfs_create_dir+0x79/0xd0
[ 1245.227331] [<ffffffff812d20a0>] kobject_add_internal+0xc0/0x300
[ 1245.227336] [<ffffffff812d2565>] kobject_add+0x65/0xb0
[ 1245.227362] [<ffffffffa015f94c>] btrfs_sysfs_add_one+0x4c/0x150 [btrfs]
[ 1245.227436] [<ffffffffa011f0ca>] btrfs_mount+0x53a/0x7f0 [btrfs]
[ 1245.227451] [<ffffffff8118995f>] mount_fs+0x2f/0x1a0
[ 1245.227457] [<ffffffff811a2705>] vfs_kern_mount+0x55/0xe0
[ 1245.227462] [<ffffffff811a4b80>] do_mount+0x230/0xa40
[ 1245.227470] [<ffffffff811a540c>] SyS_mount+0x7c/0xc0
[ 1245.227476] [<ffffffff815b6fed>] system_call_fastpath+0x1a/0x1f
[ 1245.227482] [<00007f881cf0ff5a>] 0x7f881cf0ff59
[ 1245.227485] ---[ end trace 848ff4eadca66e6b ]---
[ 1245.227488] ------------[ cut here ]------------
[ 1245.227492] WARNING: CPU: 4 PID: 2539 at
/home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.1/linux-3.11/lib/kobject.c:197
kobject_add_internal+0x1f4/0x300()
[ 1245.227495] kobject_add_internal failed for
00000000-0000-0000-0000-000000000000 with -EEXIST, don't try to register
things with the same name in the same directory.
[ 1245.227496] Modules linked in: fuse ufs qnx4 hfsplus hfs minix vfat
msdos fat jfs xfs reiserfs st bnep bluetooth af_packet cachefiles
fscache iTCO_wdt snd_hda_codec_hdmi gpio_ich iTCO_vendor_support mxm_wmi
dcdbas coretemp kvm_intel nvidia(PO) kvm serio_raw pcspkr i2c_i801
joydev arc4 snd_hda_codec_realtek snd_usb_audio snd_usbmidi_lib uvcvideo
snd_rawmidi videobuf2_core snd_seq_device videodev videobuf2_vmalloc
videobuf2_memops iwldvm mac80211 snd_hda_intel snd_hda_codec snd_hwdep
lpc_ich mfd_core snd_pcm iwlwifi snd_timer cfg80211 snd r8169 rfkill mii
acpi_cpufreq wmi drm button soundcore mperf i7core_edac processor
edac_core snd_page_alloc shpchp thermal_sys dm_mod btrfs raid6_pq
zlib_deflate xor ata_generic sr_mod libcrc32c crc32c_intel cdrom
usb_storage xhci_hcd pata_jmicron hid_logitech_dj
[ 1245.227549] sg autofs4
[ 1245.227552] CPU: 4 PID: 2539 Comm: mount Tainted: P W O
3.11.1-5.g50dfbd0-desktop #1
[ 1245.227554] Hardware name: DELL Inc. Studio XPS 435T/9000/0X501H,
BIOS A16 02/04/2010
[ 1245.227556] 0000000000000009 ffffffff815a93c7 ffff8801025c3c50
ffffffff81050e02
[ 1245.227560] ffff88010263b020 ffff8801025c3ca0 0000000000000000
ffff8801b5231258
[ 1245.227563] ffff88010263b020 ffffffff81050e67 ffffffff81819908
ffff880100000028
[ 1245.227567] Call Trace:
[ 1245.227575] [<ffffffff81004988>] dump_trace+0x88/0x310
[ 1245.227579] [<ffffffff81004ce0>] show_stack_log_lvl+0xd0/0x1d0
[ 1245.227584] [<ffffffff8100612c>] show_stack+0x1c/0x50
[ 1245.227588] [<ffffffff815a93c7>] dump_stack+0x50/0x89
[ 1245.227593] [<ffffffff81050e02>] warn_slowpath_common+0x72/0x90
[ 1245.227598] [<ffffffff81050e67>] warn_slowpath_fmt+0x47/0x50
[ 1245.227603] [<ffffffff812d21d4>] kobject_add_internal+0x1f4/0x300
[ 1245.227611] [<ffffffff812d2565>] kobject_add+0x65/0xb0
[ 1245.227632] [<ffffffffa015f94c>] btrfs_sysfs_add_one+0x4c/0x150 [btrfs]
[ 1245.227700] [<ffffffffa011f0ca>] btrfs_mount+0x53a/0x7f0 [btrfs]
[ 1245.227713] [<ffffffff8118995f>] mount_fs+0x2f/0x1a0
[ 1245.227719] [<ffffffff811a2705>] vfs_kern_mount+0x55/0xe0
[ 1245.227724] [<ffffffff811a4b80>] do_mount+0x230/0xa40
[ 1245.227731] [<ffffffff811a540c>] SyS_mount+0x7c/0xc0
[ 1245.227736] [<ffffffff815b6fed>] system_call_fastpath+0x1a/0x1f
[ 1245.227743] [<00007f881cf0ff5a>] 0x7f881cf0ff59
[ 1245.227744] ---[ end trace 848ff4eadca66e6c ]---
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