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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

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** Changed in: linux (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1383446

Title:
  WARNING: CPU: 0 PID: 6 at
  /build/buildd/linux-3.13.0/fs/proc/generic.c:522
  remove_proc_entry+0x19f/0x1b0()

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  kernel oops during boot. no crash. kubuntu still usable.

  ------------[ cut here ]------------
  [   44.392154] WARNING: CPU: 0 PID: 6 at /build/buildd/linux-3.13.0/fs/proc/generic.c:522 remove_proc_entry+0x19f/0x1b0()
  [   44.392157] remove_proc_entry: removing non-empty directory 'fs/nfsfs', leaking at least 'volumes'
  [   44.392159] Modules linked in: bridge(+) stp llc ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables nfsv3 nfsv4 rfcomm bnep bluetooth ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi binfmt_misc nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache dm_crypt ir_lirc_codec lirc_dev ir_mce_kbd_decoder ir_sanyo_decoder ir_sony_decoder ir_jvc_decoder ir_rc6_decoder ir_nec_decoder ir_rc5_decoder uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev joydev rc_rc6_mce pl2303 snd_usb_audio mceusb snd_usbmidi_lib rc_core usbserial snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_seq_midi snd_seq_midi_event coretemp snd_rawmidi kvm_intel kvm dm_multipath scsi_dh snd_seq snd_seq_device snd_timer snd serio_raw lpc_ich soundcore mac_hid parport_pc ppdev lp parport hid_generic usbhid hid i915 e1000e video i2c_algo_bit psmouse drm_kms_helper firewire_ohci drm firewire_core ptp crc_itu_t pps_core
  [   44.392237] CPU: 0 PID: 6 Comm: kworker/u8:0 Not tainted 3.13.0-37-generic #64-Ubuntu
  [   44.392239] Hardware name: AOpen i965GMx-IF/i965GMx-IF, BIOS 6.00 PG 10/03/2008
  [   44.392243] Workqueue: netns cleanup_net
  [   44.392245]  0000000000000009 ffff880129b25c80 ffffffff8171ed09 ffff880129b25cc8
  [   44.392249]  ffff880129b25cb8 ffffffff8106773d ffff8801240fcd80 0000000000000005
  [   44.392252]  ffffffffa053b8a8 ffff8800af22deb0 ffff8801240fcdf5 ffff880129b25d18
  [   44.392255] Call Trace:
  [   44.392262]  [<ffffffff8171ed09>] dump_stack+0x45/0x56
  [   44.392266]  [<ffffffff8106773d>] warn_slowpath_common+0x7d/0xa0
  [   44.392270]  [<ffffffff810677ac>] warn_slowpath_fmt+0x4c/0x50
  [   44.392273]  [<ffffffff8122989f>] remove_proc_entry+0x19f/0x1b0
  [   44.392290]  [<ffffffffa051b4e2>] nfs_fs_proc_net_exit+0x62/0x70 [nfs]
  [   44.392301]  [<ffffffffa05215b2>] nfs_net_exit+0x12/0x20 [nfs]
  [   44.392304]  [<ffffffff8161b409>] ops_exit_list.isra.1+0x39/0x60
  [   44.392307]  [<ffffffff8161bc90>] cleanup_net+0x110/0x250
  [   44.392312]  [<ffffffff810839c2>] process_one_work+0x182/0x450
  [   44.392315]  [<ffffffff810847b1>] worker_thread+0x121/0x410
  [   44.392318]  [<ffffffff81084690>] ? rescuer_thread+0x430/0x430
  [   44.392321]  [<ffffffff8108b492>] kthread+0xd2/0xf0
  [   44.392324]  [<ffffffff8108b3c0>] ? kthread_create_on_node+0x1c0/0x1c0
  [   44.392328]  [<ffffffff8172f77c>] ret_from_fork+0x7c/0xb0
  [   44.392331]  [<ffffffff8108b3c0>] ? kthread_create_on_node+0x1c0/0x1c0
  [   44.392333] ---[ end trace d2c8090166cdd4d7 ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-37-generic 3.13.0-37.64
  ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7
  Uname: Linux 3.13.0-37-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  pascal     3346 F.... pulseaudio
   /dev/snd/controlC0:  pascal     3346 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Mon Oct 20 21:25:04 2014
  HibernationDevice: RESUME=UUID=6e95fe83-ffc6-4f37-b81c-984d3bf3dc85
  InstallationDate: Installed on 2011-10-23 (1092 days ago)
  InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
   
   virbr0    no wireless extensions.
  MachineType: AOpen i965GMx-IF
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-37-generic root=UUID=6326dfb7-36be-4eae-85b8-e49695f3f331 ro security=selinux selinux=1
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-37-generic N/A
   linux-backports-modules-3.13.0-37-generic  N/A
   linux-firmware                             1.127.7
  RfKill:
   
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-04-20 (183 days ago)
  dmi.bios.date: 10/03/2008
  dmi.bios.vendor: Phoenix Technologies, LTD
  dmi.bios.version: 6.00 PG
  dmi.board.name: i965GMx-IF
  dmi.board.vendor: AOpen
  dmi.board.version: 558EX10I690
  dmi.chassis.type: 3
  dmi.chassis.vendor: AOpen
  dmi.chassis.version: i965GMx-IF
  dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd10/03/2008:svnAOpen:pni965GMx-IF:pvrAO00001JW:rvnAOpen:rni965GMx-IF:rvr558EX10I690:cvnAOpen:ct3:cvri965GMx-IF:
  dmi.product.name: i965GMx-IF
  dmi.product.version: AO00001JW
  dmi.sys.vendor: AOpen

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