We have this same problem. Just upgraded to -38 , no change:
[184207.109594] ------------[ cut here ]------------ [184207.109604] WARNING: CPU: 15 PID: 10701 at /build/buildd/linux-3.13.0/fs/proc/generic.c:511 remove_proc_entry+0x139/0x1b0() [184207.109606] name 'fs/nfsfs' [184207.109608] Modules linked in: nfsv3 ipmi_devintf veth xt_conntrack ipt_REJECT ip6table_filter ip6_tables ebtable_nat ebtables xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack xt_tcpudp iptable_filter ip_tables x_tables autofs4 nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache bridge gpio_ich dcdbas intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd serio_raw joydev lpc_ich i7core_edac edac_core ipmi_si bonding wmi 8021q acpi_power_meter mac_hid garp stp mrp llc ses enclosure hid_generic usbhid psmouse hid megaraid_sas bnx2 [184207.109664] CPU: 15 PID: 10701 Comm: kworker/u66:1 Tainted: G W I 3.13.0-38-generic #65-Ubuntu [184207.109666] Hardware name: Dell Inc. PowerEdge R610/0F0XJ6, BIOS 6.4.0 07/23/2013 [184207.109671] Workqueue: netns cleanup_net [184207.109673] 0000000000000009 ffff880bfaefbc80 ffffffff8171ece7 ffff880bfaefbcc8 [184207.109679] ffff880bfaefbcb8 ffffffff8106773d 0000000000000000 0000000000000005 [184207.109683] ffffffffa02f58a8 ffff880c0f802db0 0000000000000840 ffff880bfaefbd18 [184207.109687] Call Trace: [184207.109693] [<ffffffff8171ece7>] dump_stack+0x45/0x56 [184207.109698] [<ffffffff8106773d>] warn_slowpath_common+0x7d/0xa0 [184207.109702] [<ffffffff810677ac>] warn_slowpath_fmt+0x4c/0x50 [184207.109707] [<ffffffff81229889>] remove_proc_entry+0x139/0x1b0 [184207.109721] [<ffffffffa02d54e2>] nfs_fs_proc_net_exit+0x62/0x70 [nfs] [184207.109732] [<ffffffffa02db5b2>] nfs_net_exit+0x12/0x20 [nfs] [184207.109735] [<ffffffff8161b3a9>] ops_exit_list.isra.1+0x39/0x60 [184207.109739] [<ffffffff8161bc30>] cleanup_net+0x110/0x250 [184207.109745] [<ffffffff810839c2>] process_one_work+0x182/0x450 [184207.109749] [<ffffffff810847b1>] worker_thread+0x121/0x410 [184207.109753] [<ffffffff81084690>] ? rescuer_thread+0x430/0x430 [184207.109757] [<ffffffff8108b492>] kthread+0xd2/0xf0 [184207.109761] [<ffffffff8108b3c0>] ? kthread_create_on_node+0x1c0/0x1c0 [184207.109765] [<ffffffff8172f73c>] ret_from_fork+0x7c/0xb0 [184207.109769] [<ffffffff8108b3c0>] ? kthread_create_on_node+0x1c0/0x1c0 [184207.109771] ---[ end trace bad0608c86108035 ]--- -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1376245 Title: remove_proc_entry+0x139/0x1b0() -- name 'fs/nfsfs' Status in “linux” package in Ubuntu: Confirmed Bug description: Ubuntu 14.04 amd64 ii linux-image-3.13.0-37-generic 3.13.0-37.64 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP sloeuillet@SLoeuillet-DE107:/sfr$ uname -a Linux SLoeuillet-DE107 3.13.0-37-generic #64-Ubuntu SMP Mon Sep 22 21:28:38 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Today, I encountered 2 quite identical stack traces in my dmesg, related to nfs : [368973.412120] WARNING: CPU: 1 PID: 15607 at /build/buildd/linux-3.13.0/fs/proc/generic.c:511 remove_proc_entry+0x139/0x1b0() [368973.412122] name 'fs/nfsfs' [368973.412123] Modules linked in: cdc_acm nfsv3 rpcsec_gss_krb5 8021q garp stp mrp llc cuse bnep rfcomm bluetooth nfsv4 nfsd auth_rpcgss nfs_acl nfs lockd sunrpc binfmt_misc fscache hp_wmi sparse_keymap snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep snd_pcm radeon snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq sp5100_tco snd_seq_device serio_raw snd_timer ttm drm_kms_helper snd kvm edac_core soundcore drm edac_mce_amd k8temp i2c_algo_bit i2c_piix4 tpm_infineon shpchp wmi mac_hid parport_pc ppdev lp parport hid_generic usbhid hid tg3 psmouse ptp pps_core floppy ahci libahci [368973.412164] CPU: 1 PID: 15607 Comm: kworker/u8:1 Tainted: G W 3.13.0-37-generic #64-Ubuntu [368973.412166] Hardware name: Hewlett-Packard HP Compaq dc5850 Small Form Factor/3029h, BIOS 786F6 v03.14 11/15/2011 [368973.412171] Workqueue: netns cleanup_net [368973.412172] 0000000000000009 ffff88006a875c80 ffffffff8171ed09 ffff88006a875cc8 [368973.412176] ffff88006a875cb8 ffffffff8106773d 0000000000000000 0000000000000005 [368973.412179] ffffffffa05168a8 ffff88011b418b30 0000000000000100 ffff88006a875d18 [368973.412182] Call Trace: [368973.412188] [<ffffffff8171ed09>] dump_stack+0x45/0x56 [368973.412192] [<ffffffff8106773d>] warn_slowpath_common+0x7d/0xa0 [368973.412195] [<ffffffff810677ac>] warn_slowpath_fmt+0x4c/0x50 [368973.412198] [<ffffffff81229839>] remove_proc_entry+0x139/0x1b0 [368973.412217] [<ffffffffa04f64e2>] nfs_fs_proc_net_exit+0x62/0x70 [nfs] [368973.412225] [<ffffffffa04fc5b2>] nfs_net_exit+0x12/0x20 [nfs] [368973.412228] [<ffffffff8161b409>] ops_exit_list.isra.1+0x39/0x60 [368973.412231] [<ffffffff8161bc90>] cleanup_net+0x110/0x250 [368973.412235] [<ffffffff810839c2>] process_one_work+0x182/0x450 [368973.412237] [<ffffffff810847b1>] worker_thread+0x121/0x410 [368973.412240] [<ffffffff81084690>] ? rescuer_thread+0x430/0x430 [368973.412243] [<ffffffff8108b492>] kthread+0xd2/0xf0 [368973.412246] [<ffffffff8108b3c0>] ? kthread_create_on_node+0x1c0/0x1c0 [368973.412249] [<ffffffff8172f77c>] ret_from_fork+0x7c/0xb0 [368973.412251] [<ffffffff8108b3c0>] ? kthread_create_on_node+0x1c0/0x1c0 [368973.412253] ---[ end trace bb78fe56a3dcb678 ]--- [368973.448199] WARNING: CPU: 1 PID: 15607 at /build/buildd/linux-3.13.0/fs/proc/generic.c:511 remove_proc_entry+0x139/0x1b0() [368973.448201] name 'fs/nfsfs' [368973.448203] Modules linked in: cdc_acm nfsv3 rpcsec_gss_krb5 8021q garp stp mrp llc cuse bnep rfcomm bluetooth nfsv4 nfsd auth_rpcgss nfs_acl nfs lockd sunrpc binfmt_misc fscache hp_wmi sparse_keymap snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep snd_pcm radeon snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq sp5100_tco snd_seq_device serio_raw snd_timer ttm drm_kms_helper snd kvm edac_core soundcore drm edac_mce_amd k8temp i2c_algo_bit i2c_piix4 tpm_infineon shpchp wmi mac_hid parport_pc ppdev lp parport hid_generic usbhid hid tg3 psmouse ptp pps_core floppy ahci libahci [368973.448250] CPU: 1 PID: 15607 Comm: kworker/u8:1 Tainted: G W 3.13.0-37-generic #64-Ubuntu [368973.448252] Hardware name: Hewlett-Packard HP Compaq dc5850 Small Form Factor/3029h, BIOS 786F6 v03.14 11/15/2011 [368973.448257] Workqueue: netns cleanup_net [368973.448259] 0000000000000009 ffff88006a875c80 ffffffff8171ed09 ffff88006a875cc8 [368973.448263] ffff88006a875cb8 ffffffff8106773d 0000000000000000 0000000000000005 [368973.448265] ffffffffa05168a8 ffff88011b418b30 0000000000000100 ffff88006a875d18 [368973.448268] Call Trace: [368973.448275] [<ffffffff8171ed09>] dump_stack+0x45/0x56 [368973.448279] [<ffffffff8106773d>] warn_slowpath_common+0x7d/0xa0 [368973.448283] [<ffffffff810677ac>] warn_slowpath_fmt+0x4c/0x50 [368973.448286] [<ffffffff81229839>] remove_proc_entry+0x139/0x1b0 [368973.448313] [<ffffffffa04f64e2>] nfs_fs_proc_net_exit+0x62/0x70 [nfs] [368973.448322] [<ffffffffa04fc5b2>] nfs_net_exit+0x12/0x20 [nfs] [368973.448325] [<ffffffff8161b409>] ops_exit_list.isra.1+0x39/0x60 [368973.448327] [<ffffffff8161bc90>] cleanup_net+0x110/0x250 [368973.448331] [<ffffffff810839c2>] process_one_work+0x182/0x450 [368973.448334] [<ffffffff810847b1>] worker_thread+0x121/0x410 [368973.448337] [<ffffffff81084690>] ? rescuer_thread+0x430/0x430 [368973.448341] [<ffffffff8108b492>] kthread+0xd2/0xf0 [368973.448343] [<ffffffff8108b3c0>] ? kthread_create_on_node+0x1c0/0x1c0 [368973.448346] [<ffffffff8172f77c>] ret_from_fork+0x7c/0xb0 [368973.448349] [<ffffffff8108b3c0>] ? kthread_create_on_node+0x1c0/0x1c0 [368973.448351] ---[ end trace bb78fe56a3dcb679 ]--- 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: 2.14.1-0ubuntu3.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: sloeuillet 2501 F.... pulseaudio CurrentDesktop: Unity Date: Wed Oct 1 14:44:17 2014 HibernationDevice: RESUME=UUID=f74ad7c2-cbec-4b9b-8b27-d1b624315ca8 InstallationDate: Installed on 2013-09-16 (380 days ago) InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: Hewlett-Packard HP Compaq dc5850 Small Form Factor ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-37-generic root=/dev/sda1 ro quiet splash vt.handoff=7 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 2014-04-28 (156 days ago) dmi.bios.date: 11/15/2011 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 786F6 v03.14 dmi.board.name: 3029h dmi.board.vendor: Hewlett-Packard dmi.chassis.type: 4 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr786F6v03.14:bd11/15/2011:svnHewlett-Packard:pnHPCompaqdc5850SmallFormFactor:pvr:rvnHewlett-Packard:rn3029h:rvr:cvnHewlett-Packard:ct4:cvr: dmi.product.name: HP Compaq dc5850 Small Form Factor dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1376245/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
