I'm still seeing the problem with new kernels. It breaks my ceph installation badly.
[1368555.197934] ------------[ cut here ]------------ [1368555.197945] WARNING: CPU: 3 PID: 4400 at /build/buildd/linux-3.13.0/fs/proc/generic.c:511 remove_proc_entry+0x139/0x1b0() [1368555.197947] name 'fs/nfsfs' [1368555.197949] Modules linked in: gspca_ov534 nls_iso8859_1 usb_storage xt_TCPMSS xt_tcpmss arc4 ppp_mppe ppp_async crc_ccitt vhost_net vhost macvtap macvlan nf_conntrack_ipv6 nf_defrag_ipv6 xt_mac xt_physdev xt_multiport pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) xt_conntrack ipt_REJECT veth 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 bridge stp llc iptable_filter ip_tables x_tables nbd ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi rfcomm rbd libceph openvswitch gre vxlan ip_tunnel binfmt_misc nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache dm_crypt xfs snd_usb_audio snd_usbmidi_lib fglrx(POX) kvm_amd kvm gspca_main videodev wacom serio_raw dm_multipath scsi_dh joydev edac_core edac_mce_amd k10temp snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel btusb snd_hda _codec snd_hwdep snd_pcm bluetooth snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd soundcore sp5100_tco amd_iommu_v2 i2c_piix4 asus_atk0110 mac_hid parport_pc ppdev lp parport btrfs libcrc32c raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 raid0 multipath linear dm_mirror dm_region_hash dm_log hid_generic hid_logitech_dj usbhid hid pata_acpi psmouse pata_atiixp ahci e1000e pata_marvell libahci firewire_ohci ptp firewire_core pps_core r8169 crc_itu_t mii floppy wmi [last unloaded: gspca_ov534] [1368555.198044] CPU: 3 PID: 4400 Comm: kworker/u12:1 Tainted: P W OX 3.13.0-37-generic #64-Ubuntu [1368555.198046] Hardware name: System manufacturer System Product Name/M4A79T Deluxe, BIOS 3503 05/06/2011 [1368555.198051] Workqueue: netns cleanup_net [1368555.198053] 0000000000000009 ffff880119017c80 ffffffff8171ed09 ffff880119017cc8 [1368555.198057] ffff880119017cb8 ffffffff8106773d 0000000000000000 0000000000000005 [1368555.198060] ffffffffa06e48a8 ffff880323019ab0 0000000000000180 ffff880119017d18 [1368555.198063] Call Trace: [1368555.198070] [<ffffffff8171ed09>] dump_stack+0x45/0x56 [1368555.198074] [<ffffffff8106773d>] warn_slowpath_common+0x7d/0xa0 [1368555.198079] [<ffffffff810677ac>] warn_slowpath_fmt+0x4c/0x50 [1368555.198084] [<ffffffff81229839>] remove_proc_entry+0x139/0x1b0 [1368555.198103] [<ffffffffa06c44e2>] nfs_fs_proc_net_exit+0x62/0x70 [nfs] [1368555.198115] [<ffffffffa06ca5b2>] nfs_net_exit+0x12/0x20 [nfs] [1368555.198118] [<ffffffff8161b409>] ops_exit_list.isra.1+0x39/0x60 [1368555.198122] [<ffffffff8161bc90>] cleanup_net+0x110/0x250 [1368555.198126] [<ffffffff810839c2>] process_one_work+0x182/0x450 [1368555.198130] [<ffffffff810847b1>] worker_thread+0x121/0x410 [1368555.198133] [<ffffffff81084690>] ? rescuer_thread+0x430/0x430 [1368555.198137] [<ffffffff8108b492>] kthread+0xd2/0xf0 [1368555.198140] [<ffffffff8108b3c0>] ? kthread_create_on_node+0x1c0/0x1c0 [1368555.198143] [<ffffffff8172f77c>] ret_from_fork+0x7c/0xb0 [1368555.198146] [<ffffffff8108b3c0>] ? kthread_create_on_node+0x1c0/0x1c0 [1368555.198148] ---[ end trace 007872efa0f6c8f7 ]--- [1372797.021226] libceph: osd0 172.16.0.119:6800 socket closed (con state OPEN) [1373904.941772] libceph: osd2 172.16.0.119:6805 socket closed (con state OPEN) [1374022.647670] ------------[ cut here ]------------ [1374022.647691] WARNING: CPU: 1 PID: 17323 at /build/buildd/linux-3.13.0/fs/proc/generic.c:511 remove_proc_entry+0x139/0x1b0() [1374022.647696] name 'fs/nfsfs' [1374022.647700] Modules linked in: gspca_ov534 nls_iso8859_1 usb_storage xt_TCPMSS xt_tcpmss arc4 ppp_mppe ppp_async crc_ccitt vhost_net vhost macvtap macvlan nf_conntrack_ipv6 nf_defrag_ipv6 xt_mac xt_physdev xt_multiport pci_stub vboxpci(OX) vboxnetadp(OX) vboxnetflt(OX) vboxdrv(OX) xt_conntrack ipt_REJECT veth 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 bridge stp llc iptable_filter ip_tables x_tables nbd ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi rfcomm rbd libceph openvswitch gre vxlan ip_tunnel binfmt_misc nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache dm_crypt xfs snd_usb_audio snd_usbmidi_lib fglrx(POX) kvm_amd kvm gspca_main videodev wacom serio_raw dm_multipath scsi_dh joydev edac_core edac_mce_amd k10temp snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel btusb snd_hda _codec snd_hwdep snd_pcm bluetooth snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd soundcore sp5100_tco amd_iommu_v2 i2c_piix4 asus_atk0110 mac_hid parport_pc ppdev lp parport btrfs libcrc32c raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 raid0 multipath linear dm_mirror dm_region_hash dm_log hid_generic hid_logitech_dj usbhid hid pata_acpi psmouse pata_atiixp ahci e1000e pata_marvell libahci firewire_ohci ptp firewire_core pps_core r8169 crc_itu_t mii floppy wmi [last unloaded: gspca_ov534] [1374022.647897] CPU: 1 PID: 17323 Comm: kworker/u12:1 Tainted: P W OX 3.13.0-37-generic #64-Ubuntu [1374022.647903] Hardware name: System manufacturer System Product Name/M4A79T Deluxe, BIOS 3503 05/06/2011 [1374022.647912] Workqueue: netns cleanup_net [1374022.647916] 0000000000000009 ffff8801183c9c80 ffffffff8171ed09 ffff8801183c9cc8 [1374022.647926] ffff8801183c9cb8 ffffffff8106773d 0000000000000000 0000000000000005 [1374022.647933] ffffffffa06e48a8 ffff880323019ab0 0000000000000180 ffff8801183c9d18 [1374022.647941] Call Trace: [1374022.647952] [<ffffffff8171ed09>] dump_stack+0x45/0x56 [1374022.647961] [<ffffffff8106773d>] warn_slowpath_common+0x7d/0xa0 [1374022.647973] [<ffffffff810677ac>] warn_slowpath_fmt+0x4c/0x50 [1374022.647985] [<ffffffff81229839>] remove_proc_entry+0x139/0x1b0 [1374022.648022] [<ffffffffa06c44e2>] nfs_fs_proc_net_exit+0x62/0x70 [nfs] [1374022.648052] [<ffffffffa06ca5b2>] nfs_net_exit+0x12/0x20 [nfs] [1374022.648059] [<ffffffff8161b409>] ops_exit_list.isra.1+0x39/0x60 [1374022.648069] [<ffffffff8161bc90>] cleanup_net+0x110/0x250 [1374022.648078] [<ffffffff810839c2>] process_one_work+0x182/0x450 [1374022.648086] [<ffffffff810847b1>] worker_thread+0x121/0x410 [1374022.648094] [<ffffffff81084690>] ? rescuer_thread+0x430/0x430 [1374022.648101] [<ffffffff8108b492>] kthread+0xd2/0xf0 [1374022.648108] [<ffffffff8108b3c0>] ? kthread_create_on_node+0x1c0/0x1c0 [1374022.648116] [<ffffffff8172f77c>] ret_from_fork+0x7c/0xb0 [1374022.648123] [<ffffffff8108b3c0>] ? kthread_create_on_node+0x1c0/0x1c0 [1374022.648128] ---[ end trace 007872efa0f6c8f8 ]--- [1374035.674844] libceph: osd4 172.16.0.100:6811 socket closed (con state OPEN) [1374241.964714] libceph: osd3 172.16.0.100:6806 socket closed (con state OPEN) [1374352.646674] libceph: osd2 172.16.0.119:6805 socket closed (con state OPEN) [1376005.519490] libceph: osd1 172.16.0.100:6801 socket closed (con state OPEN) [1376005.662005] libceph: osd1 172.16.0.100:6801 socket closed (con state OPEN) [1376007.628311] libceph: osd1 172.16.0.100:6801 socket closed (con state OPEN) [1376008.876026] libceph: osd1 172.16.0.100:6801 socket closed (con state OPEN) [1376010.104730] libceph: osd1 172.16.0.100:6801 socket closed (con state OPEN) [1376012.029574] libceph: osd1 172.16.0.100:6801 socket closed (con state OPEN) [1376012.145762] libceph: osd1 172.16.0.100:6801 socket closed (con state OPEN) [1376012.232458] libceph: osd1 172.16.0.100:6801 socket closed (con state OPEN) [1376012.299339] libceph: osd1 172.16.0.100:6801 socket closed (con state OPEN) [1376019.005429] libceph: osd1 172.16.0.100:6801 socket closed (con state OPEN) I will try to untaint the kernel so maybe it helps -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openvswitch in Ubuntu. https://bugs.launchpad.net/bugs/1336555 Title: ovs-vswitchd segfault every 2 days To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openvswitch/+bug/1336555/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs