Bug 966705 - Bluetooth fast power-cycle -> duplicate sysfs entry oops still around
Bluetooth fast power-cycle -> duplicate sysfs entry oops still around
Product: Fedora
Classification: Fedora
Component: bluez (Show other bugs)
x86_64 Unspecified
unspecified Severity unspecified
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Assigned To: Don Zickus
Fedora Extras Quality Assurance
Depends On:
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Reported: 2013-05-23 14:08 EDT by James Ettle
Modified: 2015-02-17 10:19 EST (History)
9 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Clone Of:
Last Closed: 2015-02-17 10:19:25 EST
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Attachments (Terms of Use)
File: dmesg (97.19 KB, text/plain)
2013-05-23 14:08 EDT, James Ettle
no flags Details

  None (edit)
Description James Ettle 2013-05-23 14:08:28 EDT
Description of problem:
I have a Bluetooth mouse paired to this notebook. I soft-detached and reattached my notebook's Bluetooth dongle (by pressing a special function key combination). This oops was the result. Seems to be the same "duplicate sysfs entry" one that's been around for a few years now that happens if you quickly power-cycle a Bluetooth mouse too quickly.

Additional info:
reporter:       libreport-2.1.4
WARNING: at fs/sysfs/dir.c:536 sysfs_add_one+0xae/0xe0()
Hardware name: M720R
sysfs: cannot create duplicate filename '/class/bluetooth/hci0:42'
Modules linked in: hidp lp parport tcp_lp fuse ebtable_nat nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6table_nat nf_nat_ipv6 ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat nf_nat_ipv4 nf_nat iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ebtable_filter ebtables ip6table_filter ip6_tables rfcomm bnep uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core acpi_cpufreq mperf videodev coretemp arc4 kvm_intel kvm iTCO_wdt iTCO_vendor_support serio_raw btusb media snd_hda_codec_si3054 snd_hda_codec_realtek sdhci_pci sdhci microcode iwl4965 snd_hda_intel joydev iwlegacy snd_hda_codec i2c_i801 mac80211 lpc_ich cfg80211 snd_hwdep snd_seq mfd_core bluetooth mmc_core rfkill r8169 snd_seq_device snd_pcm snd_page_alloc snd_timer snd soundcore mii wmi btrfs libcrc32c xor zlib_deflate raid6_pq i915 firewire_ohci i2c_algo_bit drm_kms_helper firewire_core drm crc_itu_t i2c_core video uinput
Pid: 14932, comm: kworker/u:1H Not tainted 3.9.2-301.fc19.x86_64 #1
Call Trace:
 [<ffffffff8120e300>] ? sysfs_add_one+0x90/0xe0
 [<ffffffff8105cd86>] warn_slowpath_common+0x66/0x80
 [<ffffffff8105cdec>] warn_slowpath_fmt+0x4c/0x50
 [<ffffffff8120e31e>] sysfs_add_one+0xae/0xe0
 [<ffffffff8120eff5>] sysfs_do_create_link_sd+0x105/0x210
 [<ffffffff81200001>] ? proc_pid_readlink+0xe1/0xf0
 [<ffffffff8120f121>] sysfs_create_link+0x21/0x40
 [<ffffffff813e2764>] device_add+0x3b4/0x720
 [<ffffffff813e0d27>] ? dev_set_name+0x47/0x50
 [<ffffffffa0309ace>] hci_conn_add_sysfs+0x4e/0xd0 [bluetooth]
 [<ffffffffa02fe12b>] hci_event_packet+0x171b/0x2c60 [bluetooth]
 [<ffffffffa02ef0e8>] hci_rx_work+0x1b8/0x3c0 [bluetooth]
 [<ffffffff81079a1e>] process_one_work+0x16e/0x3f0
 [<ffffffff8107b49f>] worker_thread+0x10f/0x3d0
 [<ffffffff8107b390>] ? manage_workers+0x340/0x340
 [<ffffffff81080340>] kthread+0xc0/0xd0
 [<ffffffff81080280>] ? insert_kthread_work+0x40/0x40
 [<ffffffff8164dc6c>] ret_from_fork+0x7c/0xb0
 [<ffffffff81080280>] ? insert_kthread_work+0x40/0x40
Comment 1 James Ettle 2013-05-23 14:08:38 EDT
Created attachment 752305 [details]
File: dmesg
Comment 2 James Ettle 2013-05-23 14:10:14 EDT
This bug completely hoses the bluetooth subsystem until a restart. bluetoothd gets stuck in uninterruptible sleep.
Comment 3 Fedora Admin XMLRPC Client 2013-08-26 10:25:02 EDT
This package has changed ownership in the Fedora Package Database.  Reassigning to the new owner of this component.
Comment 4 Victor Mataré 2014-02-23 16:22:55 EST
There was some discussion about this issue on the linux-bluetooth ml a while ago: http://www.spinics.net/lists/linux-bluetooth/msg23697.html
But it seems to have gone nowhere and I'm still seeing this on a 3.12 gentoo kernel...
Comment 5 Fedora End Of Life 2015-01-09 13:12:10 EST
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Comment 6 Fedora End Of Life 2015-02-17 10:19:25 EST
Fedora 19 changed to end-of-life (EOL) status on 2015-01-06. Fedora 19 is
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