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[Bug 1416592] IwConfig.txt

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apport information

** Attachment added: "IwConfig.txt"
   https://bugs.launchpad.net/bugs/1416592/+attachment/4309095/+files/IwConfig.txt

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https://bugs.launchpad.net/bugs/1416592

Title:
  kernel BUG at /build/buildd/linux-3.13.0/fs/xfs/xfs_aops.c:1006!

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  System lock up.  Completely unresponsive to console, and network.

  Jan 30 19:13:51 clare kernel: [624914.719493] ------------[ cut here ]------------
  Jan 30 19:13:51 clare kernel: [624914.719496] kernel BUG at /build/buildd/linux-3.13.0/fs/xfs/xfs_aops.c:1006!
  Jan 30 19:13:51 clare kernel: [624914.719497] invalid opcode: 0000 [#1] SMP 
  Jan 30 19:13:51 clare kernel: [624914.719499] Modules linked in: udf crc_itu_t usb_storage usblp btrfs raid6_pq xor ufs qnx4 hfsplus hfs minix ntfs msdos jfs des_generic md4 vmnet(OX) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OX) nls_utf8 cifs rpcsec_gss_krb5 dm_crypt nfsv4 ipt_REJECT xt_tcpudp xt_conntrack iptable_filter ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables eeepc_wmi asus_wmi sparse_keymap mxm_wmi x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm nvidia(POX) crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw bnep gf128mul rfcomm glue_helper ablk_helper snd_hda_codec_hdmi bluetooth cryptd snd_hda_codec_realtek serio_raw snd_hda_intel snd_seq_midi snd_seq_midi_event snd_hda_codec joydev snd_rawmidi snd_hwdep snd_pcm snd_seq snd_seq_device snd_page_alloc snd_timer mei_me snd mei acpi_pad wmi mac_hid soundcore parport_pc ppdev coretemp binfmt_misc lp parport nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache nls_iso8859_1 xfs libcrc32c hid_generic hid_logitech ff_memless usbhid hid i915 psmouse i2c_algo_bit e1000e drm_kms_helper ahci drm ptp libahci pps_core video
  Jan 30 19:13:51 clare kernel: [624914.719530] CPU: 3 PID: 17229 Comm: kworker/u16:2 Tainted: P           OX 3.13.0-44-generic #73-Ubuntu
  Jan 30 19:13:51 clare kernel: [624914.719531] Hardware name: ASUS All Series/SABERTOOTH Z97 MARK 2, BIOS 1008 05/29/2014
  Jan 30 19:13:51 clare kernel: [624914.719534] Workqueue: writeback bdi_writeback_workfn (flush-252:0)
  Jan 30 19:13:51 clare kernel: [624914.719536] task: ffff88002eb74800 ti: ffff88005f908000 task.ti: ffff88005f908000
  Jan 30 19:13:51 clare kernel: [624914.719537] RIP: 0010:[<ffffffffa0224fc2>]  [<ffffffffa0224fc2>] xfs_vm_writepage+0x572/0x580 [xfs]
  Jan 30 19:13:51 clare kernel: [624914.719551] RSP: 0018:ffff88005f909990  EFLAGS: 00010246
  Jan 30 19:13:51 clare kernel: [624914.719551] RAX: 02ffff0000000029 RBX: ffff88016712aee8 RCX: 000000000000000c
  Jan 30 19:13:51 clare kernel: [624914.719552] RDX: 0000000000000000 RSI: ffffea000bb81f80 RDI: ffffea000bb81f80
  Jan 30 19:13:51 clare kernel: [624914.719553] RBP: ffff88005f909a30 R08: ffffffffffffffce R09: 0000000000016820
  Jan 30 19:13:51 clare kernel: [624914.719553] R10: 0000000000047880 R11: 000000000000000b R12: ffff88016712aee8
  Jan 30 19:13:51 clare kernel: [624914.719554] R13: ffff88005f909c70 R14: ffff88016712ad98 R15: 0000000000000000
  Jan 30 19:13:51 clare kernel: [624914.719555] FS:  0000000000000000(0000) GS:ffff88043fac0000(0000) knlGS:0000000000000000
  Jan 30 19:13:51 clare kernel: [624914.719556] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  Jan 30 19:13:51 clare kernel: [624914.719557] CR2: 00007fc13755a000 CR3: 00000003f83af000 CR4: 00000000001407e0
  Jan 30 19:13:51 clare kernel: [624914.719557] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  Jan 30 19:13:51 clare kernel: [624914.719558] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  Jan 30 19:13:51 clare kernel: [624914.719558] Stack:
  Jan 30 19:13:51 clare kernel: [624914.719559]  0000000100000000 0000000179fd2000 ffff88005f909c70 ffff88005f909aa8
  Jan 30 19:13:51 clare kernel: [624914.719561]  ffff88005f909ac0 ffffea000bb81f80 0000000000001000 0000000047881000
  Jan 30 19:13:51 clare kernel: [624914.719562]  ffff88005f909a30 ffffffff8114f6c1 0000000000000000 ffff88016712aef0
  Jan 30 19:13:51 clare kernel: [624914.719563] Call Trace:
  Jan 30 19:13:51 clare kernel: [624914.719567]  [<ffffffff8114f6c1>] ? find_get_pages_tag+0xd1/0x180
  Jan 30 19:13:51 clare kernel: [624914.719569]  [<ffffffff81159403>] __writepage+0x13/0x40
  Jan 30 19:13:51 clare kernel: [624914.719570]  [<ffffffff81159db5>] write_cache_pages+0x235/0x480
  Jan 30 19:13:51 clare kernel: [624914.719572]  [<ffffffff8172433d>] ? schedule_timeout+0x17d/0x2d0
  Jan 30 19:13:51 clare kernel: [624914.719574]  [<ffffffff811593f0>] ? global_dirtyable_memory+0x50/0x50
  Jan 30 19:13:51 clare kernel: [624914.719575]  [<ffffffff8115a040>] generic_writepages+0x40/0x60
  Jan 30 19:13:51 clare kernel: [624914.719584]  [<ffffffffa02245a3>] xfs_vm_writepages+0x43/0x50 [xfs]
  Jan 30 19:13:51 clare kernel: [624914.719586]  [<ffffffff8115b1de>] do_writepages+0x1e/0x40
  Jan 30 19:13:51 clare kernel: [624914.719588]  [<ffffffff811e7290>] __writeback_single_inode+0x40/0x210
  Jan 30 19:13:51 clare kernel: [624914.719589]  [<ffffffff811e8047>] writeback_sb_inodes+0x247/0x3e0
  Jan 30 19:13:51 clare kernel: [624914.719590]  [<ffffffff811e827f>] __writeback_inodes_wb+0x9f/0xd0
  Jan 30 19:13:51 clare kernel: [624914.719591]  [<ffffffff811e84f3>] wb_writeback+0x243/0x2c0
  Jan 30 19:13:51 clare kernel: [624914.719593]  [<ffffffff811e9dc9>] bdi_writeback_workfn+0x1b9/0x430
  Jan 30 19:13:51 clare kernel: [624914.719596]  [<ffffffff81083a52>] process_one_work+0x182/0x450
  Jan 30 19:13:51 clare kernel: [624914.719598]  [<ffffffff81084841>] worker_thread+0x121/0x410
  Jan 30 19:13:51 clare kernel: [624914.719599]  [<ffffffff81084720>] ? rescuer_thread+0x430/0x430
  Jan 30 19:13:51 clare kernel: [624914.719601]  [<ffffffff8108b572>] kthread+0xd2/0xf0
  Jan 30 19:13:51 clare kernel: [624914.719602]  [<ffffffff8108b4a0>] ? kthread_create_on_node+0x1c0/0x1c0
  Jan 30 19:13:51 clare kernel: [624914.719604]  [<ffffffff817317bc>] ret_from_fork+0x7c/0xb0
  Jan 30 19:13:51 clare kernel: [624914.719605]  [<ffffffff8108b4a0>] ? kthread_create_on_node+0x1c0/0x1c0
  Jan 30 19:13:51 clare kernel: [624914.719606] Code: 51 0a 00 01 e9 39 fb ff ff be cb 03 00 00 48 c7 c7 50 87 2a a0 e8 df 28 e4 e0 e9 23 fb ff ff c7 45 a8 01 00 00 00 e9 58 fe ff ff <0f> 0b 8b 4d ac e9 91 fc ff ff 0f 1f 40 00 0f 1f 44 00 00 55 c7 
  Jan 30 19:13:51 clare kernel: [624914.719618] RIP  [<ffffffffa0224fc2>] xfs_vm_writepage+0x572/0x580 [xfs]
  Jan 30 19:13:51 clare kernel: [624914.719625]  RSP <ffff88005f909990>
  Jan 30 19:13:51 clare kernel: [624914.719627] ---[ end trace b5fe3b3cd52045c4 ]---
  Jan 30 19:13:51 clare kernel: [624914.719628] ------------[ cut here ]------------
  Jan 30 19:13:51 clare kernel: [624914.719631] WARNING: CPU: 3 PID: 17229 at /build/buildd/linux-3.13.0/kernel/exit.c:711 do_exit+0x55/0xa50()
  Jan 30 19:13:51 clare kernel: [624914.719631] Modules linked in: udf crc_itu_t usb_storage usblp btrfs raid6_pq xor ufs qnx4 hfsplus hfs minix ntfs msdos jfs des_generic md4 vmnet(OX) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OX) nls_utf8 cifs rpcsec_gss_krb5 dm_crypt nfsv4 ipt_REJECT xt_tcpudp xt_conntrack iptable_filter ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables eeepc_wmi asus_wmi sparse_keymap mxm_wmi x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm nvidia(POX) crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw bnep gf128mul rfcomm glue_helper ablk_helper snd_hda_codec_hdmi bluetooth cryptd snd_hda_codec_realtek serio_raw snd_hda_intel snd_seq_midi snd_seq_midi_event snd_hda_codec joydev snd_rawmidi snd_hwdep snd_pcm snd_seq snd_seq_device snd_page_alloc snd_timer mei_me snd mei acpi_pad wmi mac_hid soundcore parport_pc ppdev coretemp binfmt_misc lp parport nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache nls_iso8859_1 xfs libcrc32c hid_generic hid_logitech ff_memless usbhid hid i915 psmouse i2c_algo_bit e1000e drm_kms_helper ahci drm ptp libahci pps_core video
  Jan 30 19:13:51 clare kernel: [624914.719658] CPU: 3 PID: 17229 Comm: kworker/u16:2 Tainted: P      D    OX 3.13.0-44-generic #73-Ubuntu
  Jan 30 19:13:51 clare kernel: [624914.719659] Hardware name: ASUS All Series/SABERTOOTH Z97 MARK 2, BIOS 1008 05/29/2014
  Jan 30 19:13:51 clare kernel: [624914.719660] Workqueue: writeback bdi_writeback_workfn (flush-252:0)
  Jan 30 19:13:51 clare kernel: [624914.719661]  0000000000000009 ffff88005f9096c8 ffffffff81720d86 0000000000000000
  Jan 30 19:13:51 clare kernel: [624914.719662]  ffff88005f909700 ffffffff810677cd 000000000000000b ffff88005f9098e8
  Jan 30 19:13:51 clare kernel: [624914.719663]  0000000000000246 0000000000000000 ffff88002eb74800 ffff88005f909710
  Jan 30 19:13:51 clare kernel: [624914.719665] Call Trace:
  Jan 30 19:13:51 clare kernel: [624914.719666]  [<ffffffff81720d86>] dump_stack+0x45/0x56
  Jan 30 19:13:51 clare kernel: [624914.719668]  [<ffffffff810677cd>] warn_slowpath_common+0x7d/0xa0
  Jan 30 19:13:51 clare kernel: [624914.719669]  [<ffffffff810678aa>] warn_slowpath_null+0x1a/0x20
  Jan 30 19:13:51 clare kernel: [624914.719671]  [<ffffffff81069ad5>] do_exit+0x55/0xa50
  Jan 30 19:13:51 clare kernel: [624914.719673]  [<ffffffff8172a329>] oops_end+0xa9/0x150
  Jan 30 19:13:51 clare kernel: [624914.719674]  [<ffffffff8101734b>] die+0x4b/0x70
  Jan 30 19:13:51 clare kernel: [624914.719676]  [<ffffffff81729a90>] do_trap+0x60/0x170
  Jan 30 19:13:51 clare kernel: [624914.719678]  [<ffffffff810145c2>] do_invalid_op+0xa2/0x100
  Jan 30 19:13:51 clare kernel: [624914.719686]  [<ffffffffa0224fc2>] ? xfs_vm_writepage+0x572/0x580 [xfs]
  Jan 30 19:13:51 clare kernel: [624914.719689]  [<ffffffff8133c30e>] ? blk_queue_bio+0x10e/0x360
  Jan 30 19:13:51 clare kernel: [624914.719691]  [<ffffffff81338552>] ? generic_make_request+0xc2/0x110
  Jan 30 19:13:51 clare kernel: [624914.719693]  [<ffffffff8173309e>] invalid_op+0x1e/0x30
  Jan 30 19:13:51 clare kernel: [624914.719700]  [<ffffffffa0224fc2>] ? xfs_vm_writepage+0x572/0x580 [xfs]
  Jan 30 19:13:51 clare kernel: [624914.719703]  [<ffffffff8114f6c1>] ? find_get_pages_tag+0xd1/0x180
  Jan 30 19:13:51 clare kernel: [624914.719704]  [<ffffffff81159403>] __writepage+0x13/0x40
  Jan 30 19:13:51 clare kernel: [624914.719706]  [<ffffffff81159db5>] write_cache_pages+0x235/0x480
  Jan 30 19:13:51 clare kernel: [624914.719708]  [<ffffffff8172433d>] ? schedule_timeout+0x17d/0x2d0
  Jan 30 19:13:51 clare kernel: [624914.719709]  [<ffffffff811593f0>] ? global_dirtyable_memory+0x50/0x50
  Jan 30 19:13:51 clare kernel: [624914.719711]  [<ffffffff8115a040>] generic_writepages+0x40/0x60
  Jan 30 19:13:51 clare kernel: [624914.719718]  [<ffffffffa02245a3>] xfs_vm_writepages+0x43/0x50 [xfs]
  Jan 30 19:13:51 clare kernel: [624914.719720]  [<ffffffff8115b1de>] do_writepages+0x1e/0x40
  Jan 30 19:13:51 clare kernel: [624914.719721]  [<ffffffff811e7290>] __writeback_single_inode+0x40/0x210
  Jan 30 19:13:51 clare kernel: [624914.719722]  [<ffffffff811e8047>] writeback_sb_inodes+0x247/0x3e0
  Jan 30 19:13:51 clare kernel: [624914.719723]  [<ffffffff811e827f>] __writeback_inodes_wb+0x9f/0xd0
  Jan 30 19:13:51 clare kernel: [624914.719725]  [<ffffffff811e84f3>] wb_writeback+0x243/0x2c0
  Jan 30 19:13:51 clare kernel: [624914.719726]  [<ffffffff811e9dc9>] bdi_writeback_workfn+0x1b9/0x430
  Jan 30 19:13:51 clare kernel: [624914.719728]  [<ffffffff81083a52>] process_one_work+0x182/0x450
  Jan 30 19:13:51 clare kernel: [624914.719730]  [<ffffffff81084841>] worker_thread+0x121/0x410
  Jan 30 19:13:51 clare kernel: [624914.719731]  [<ffffffff81084720>] ? rescuer_thread+0x430/0x430
  Jan 30 19:13:51 clare kernel: [624914.719733]  [<ffffffff8108b572>] kthread+0xd2/0xf0
  Jan 30 19:13:51 clare kernel: [624914.719734]  [<ffffffff8108b4a0>] ? kthread_create_on_node+0x1c0/0x1c0
  Jan 30 19:13:51 clare kernel: [624914.719735]  [<ffffffff817317bc>] ret_from_fork+0x7c/0xb0
  Jan 30 19:13:51 clare kernel: [624914.719737]  [<ffffffff8108b4a0>] ? kthread_create_on_node+0x1c0/0x1c0
  Jan 30 19:13:51 clare kernel: [624914.719738] ---[ end trace b5fe3b3cd52045c5 ]---
  Jan 30 19:13:51 clare kernel: [624914.719762] BUG: unable to handle kernel paging request at ffffffffffffffd8
  Jan 30 19:13:51 clare kernel: [624914.719764] IP: [<ffffffff8108bc10>] kthread_data+0x10/0x20
  Jan 30 19:13:51 clare kernel: [624914.719766] PGD 2c11067 PUD 2c13067 PMD 0 
  Jan 30 19:13:51 clare kernel: [624914.719768] Oops: 0000 [#2] SMP 
  Jan 30 19:13:51 clare kernel: [624914.719769] Modules linked in: udf crc_itu_t usb_storage usblp btrfs raid6_pq xor ufs qnx4 hfsplus hfs minix ntfs msdos jfs des_generic md4 vmnet(OX) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OX) nls_utf8 cifs rpcsec_gss_krb5 dm_crypt nfsv4 ipt_REJECT xt_tcpudp xt_conntrack iptable_filter ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables eeepc_wmi asus_wmi sparse_keymap mxm_wmi x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm nvidia(POX) crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw bnep gf128mul rfcomm glue_helper ablk_helper snd_hda_codec_hdmi bluetooth cryptd snd_hda_codec_realtek serio_raw snd_hda_intel snd_seq_midi snd_seq_midi_event snd_hda_codec joydev snd_rawmidi snd_hwdep snd_pcm snd_seq snd_seq_device snd_page_alloc snd_timer mei_me snd mei acpi_pad wmi mac_hid soundcore parport_pc ppdev coretemp binfmt_misc lp parport nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache nls_iso8859_1 xfs libcrc32c hid_generic hid_logitech ff_memless usbhid hid i915 psmouse i2c_algo_bit e1000e drm_kms_helper ahci drm ptp libahci pps_core video
  Jan 30 19:13:51 clare kernel: [624914.719796] CPU: 3 PID: 17229 Comm: kworker/u16:2 Tainted: P      D W  OX 3.13.0-44-generic #73-Ubuntu
  Jan 30 19:13:51 clare kernel: [624914.719796] Hardware name: ASUS All Series/SABERTOOTH Z97 MARK 2, BIOS 1008 05/29/2014
  Jan 30 19:13:51 clare kernel: [624914.719803] task: ffff88002eb74800 ti: ffff88005f908000 task.ti: ffff88005f908000
  Jan 30 19:13:51 clare kernel: [624914.719803] RIP: 0010:[<ffffffff8108bc10>]  [<ffffffff8108bc10>] kthread_data+0x10/0x20
  Jan 30 19:13:51 clare kernel: [624914.719805] RSP: 0018:ffff88005f909688  EFLAGS: 00010002
  Jan 30 19:13:51 clare kernel: [624914.719806] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
  Jan 30 19:13:51 clare kernel: [624914.719807] RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff88002eb74800
  Jan 30 19:13:51 clare kernel: [624914.719808] RBP: ffff88005f909688 R08: 0000000000000000 R09: 000000000000003c
  Jan 30 19:13:51 clare kernel: [624914.719809] R10: 0004bc70f3200000 R11: fffb43903bfc3cc8 R12: ffff88043fad3480
  Jan 30 19:13:51 clare kernel: [624914.719810] R13: 0000000000000003 R14: ffff88002eb747f0 R15: ffff88002eb74800
  Jan 30 19:13:51 clare kernel: [624914.719811] FS:  0000000000000000(0000) GS:ffff88043fac0000(0000) knlGS:0000000000000000
  Jan 30 19:13:51 clare kernel: [624914.719812] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  Jan 30 19:13:51 clare kernel: [624914.719813] CR2: 0000000000000028 CR3: 00000003f83af000 CR4: 00000000001407e0
  Jan 30 19:13:51 clare kernel: [624914.719814] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  Jan 30 19:13:51 clare kernel: [624914.719815] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  Jan 30 19:13:51 clare kernel: [624914.719815] Stack:
  Jan 30 19:13:51 clare kernel: [624914.719816]  ffff88005f9096a0 ffffffff81084f51 ffff88002eb74800 ffff88005f909700
  Jan 30 19:13:51 clare kernel: [624914.719818]  ffffffff81724f39 ffff88002eb74800 ffff88005f909fd8 0000000000013480
  Jan 30 19:13:51 clare kernel: [624914.719819]  0000000000013480 ffff88002eb74800 ffff88002eb74e50 ffff88002eb747f0
  Jan 30 19:13:51 clare kernel: [624914.719821] Call Trace:
  Jan 30 19:13:51 clare kernel: [624914.719824]  [<ffffffff81084f51>] wq_worker_sleeping+0x11/0x90
  Jan 30 19:13:51 clare kernel: [624914.719827]  [<ffffffff81724f39>] __schedule+0x589/0x7d0
  Jan 30 19:13:51 clare kernel: [624914.719829]  [<ffffffff817251a9>] schedule+0x29/0x70
  Jan 30 19:13:51 clare kernel: [624914.719831]  [<ffffffff8106a15f>] do_exit+0x6df/0xa50
  Jan 30 19:13:51 clare kernel: [624914.719834]  [<ffffffff8172a329>] oops_end+0xa9/0x150
  Jan 30 19:13:51 clare kernel: [624914.719836]  [<ffffffff8101734b>] die+0x4b/0x70
  Jan 30 19:13:51 clare kernel: [624914.719838]  [<ffffffff81729a90>] do_trap+0x60/0x170
  Jan 30 19:13:51 clare kernel: [624914.719840]  [<ffffffff810145c2>] do_invalid_op+0xa2/0x100
  Jan 30 19:13:51 clare kernel: [624914.719849]  [<ffffffffa0224fc2>] ? xfs_vm_writepage+0x572/0x580 [xfs]
  Jan 30 19:13:51 clare kernel: [624914.719851]  [<ffffffff8133c30e>] ? blk_queue_bio+0x10e/0x360
  Jan 30 19:13:51 clare kernel: [624914.719852]  [<ffffffff81338552>] ? generic_make_request+0xc2/0x110
  Jan 30 19:13:51 clare kernel: [624914.719854]  [<ffffffff8173309e>] invalid_op+0x1e/0x30
  Jan 30 19:13:51 clare kernel: [624914.719860]  [<ffffffffa0224fc2>] ? xfs_vm_writepage+0x572/0x580 [xfs]
  Jan 30 19:13:51 clare kernel: [624914.719862]  [<ffffffff8114f6c1>] ? find_get_pages_tag+0xd1/0x180
  Jan 30 19:13:51 clare kernel: [624914.719864]  [<ffffffff81159403>] __writepage+0x13/0x40
  Jan 30 19:13:51 clare kernel: [624914.719865]  [<ffffffff81159db5>] write_cache_pages+0x235/0x480
  Jan 30 19:13:51 clare kernel: [624914.719867]  [<ffffffff8172433d>] ? schedule_timeout+0x17d/0x2d0
  Jan 30 19:13:51 clare kernel: [624914.719868]  [<ffffffff811593f0>] ? global_dirtyable_memory+0x50/0x50
  Jan 30 19:13:51 clare kernel: [624914.719870]  [<ffffffff8115a040>] generic_writepages+0x40/0x60
  Jan 30 19:13:51 clare kernel: [624914.719876]  [<ffffffffa02245a3>] xfs_vm_writepages+0x43/0x50 [xfs]
  Jan 30 19:13:51 clare kernel: [624914.719878]  [<ffffffff8115b1de>] do_writepages+0x1e/0x40
  Jan 30 19:13:51 clare kernel: [624914.719879]  [<ffffffff811e7290>] __writeback_single_inode+0x40/0x210
  Jan 30 19:13:51 clare kernel: [624914.719880]  [<ffffffff811e8047>] writeback_sb_inodes+0x247/0x3e0
  Jan 30 19:13:51 clare kernel: [624914.719881]  [<ffffffff811e827f>] __writeback_inodes_wb+0x9f/0xd0
  Jan 30 19:13:51 clare kernel: [624914.719882]  [<ffffffff811e84f3>] wb_writeback+0x243/0x2c0
  Jan 30 19:13:51 clare kernel: [624914.719883]  [<ffffffff811e9dc9>] bdi_writeback_workfn+0x1b9/0x430
  Jan 30 19:13:51 clare kernel: [624914.719886]  [<ffffffff81083a52>] process_one_work+0x182/0x450
  Jan 30 19:13:51 clare kernel: [624914.719887]  [<ffffffff81084841>] worker_thread+0x121/0x410
  Jan 30 19:13:51 clare kernel: [624914.719888]  [<ffffffff81084720>] ? rescuer_thread+0x430/0x430
  Jan 30 19:13:51 clare kernel: [624914.719890]  [<ffffffff8108b572>] kthread+0xd2/0xf0
  Jan 30 19:13:51 clare kernel: [624914.719891]  [<ffffffff8108b4a0>] ? kthread_create_on_node+0x1c0/0x1c0
  Jan 30 19:13:51 clare kernel: [624914.719892]  [<ffffffff817317bc>] ret_from_fork+0x7c/0xb0
  Jan 30 19:13:51 clare kernel: [624914.719893]  [<ffffffff8108b4a0>] ? kthread_create_on_node+0x1c0/0x1c0
  Jan 30 19:13:51 clare kernel: [624914.719894] Code: 00 48 89 e5 5d 48 8b 40 c8 48 c1 e8 02 83 e0 01 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 8b 87 c0 03 00 00 55 48 89 e5 <48> 8b 40 d8 5d c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 
  Jan 30 19:13:51 clare kernel: [624914.719906] RIP  [<ffffffff8108bc10>] kthread_data+0x10/0x20
  Jan 30 19:13:51 clare kernel: [624914.719907]  RSP <ffff88005f909688>
  Jan 30 19:13:51 clare kernel: [624914.719907] CR2: ffffffffffffffd8
  Jan 30 19:13:51 clare kernel: [624914.719908] ---[ end trace b5fe3b3cd52045c6 ]---
  Jan 30 19:13:51 clare kernel: [624914.719909] Fixing recursive fault but reboot is needed!
  Jan 30 19:13:51 clare kernel: [624927.422252] NVRM: GPU at PCI:0000:01:00: GPU-c3592bcb-c168-9489-ddcf-e65d3fc47752
  Jan 30 19:13:51 clare kernel: [624927.422255] NVRM: Xid (PCI:0000:01:00): 8, Channel 00000003
  Jan 30 19:13:59 clare kernel: [624935.430369] NVRM: Xid (PCI:0000:01:00): 8, Channel 0000000b
  Jan 30 19:14:01 clare kernel: [624937.434782] NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context
  Jan 30 19:14:03 clare kernel: [624939.434791] NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context
  Jan 30 19:14:12 clare kernel: [624948.874239] BUG: soft lockup - CPU#7 stuck for 22s! [alsa-sink-ALC11:3415]
  Jan 30 19:14:12 clare kernel: [624948.874242] Modules linked in: udf crc_itu_t usb_storage usblp btrfs raid6_pq xor ufs qnx4 hfsplus hfs minix ntfs msdos jfs des_generic md4 vmnet(OX) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OX) nls_utf8 cifs rpcsec_gss_krb5 dm_crypt nfsv4 ipt_REJECT xt_tcpudp xt_conntrack iptable_filter ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables eeepc_wmi asus_wmi sparse_keymap mxm_wmi x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm nvidia(POX) crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw bnep gf128mul rfcomm glue_helper ablk_helper snd_hda_codec_hdmi bluetooth cryptd snd_hda_codec_realtek serio_raw snd_hda_intel snd_seq_midi snd_seq_midi_event snd_hda_codec joydev snd_rawmidi snd_hwdep snd_pcm snd_seq snd_seq_device snd_page_alloc snd_tJan 30
  --- 
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  shc        3395 F.... pulseaudio
   /dev/snd/controlC1:  shc        3395 F.... pulseaudio
   /dev/snd/controlC0:  shc        3395 F.... pulseaudio
  DistroRelease: Ubuntu 14.04
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-01-09 (21 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: ASUS All Series
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcEnviron:
   LD_LIBRARY_PATH=<set>
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   0 EFI VGA
   1 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-44-generic.efi.signed root=/dev/mapper/ubuntu--gnome--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-44-generic N/A
   linux-backports-modules-3.13.0-44-generic  N/A
   linux-firmware                             1.127.11
  RfKill:
   
  Tags:  trusty
  Uname: Linux 3.13.0-44-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  _MarkForUpload: True
  dmi.bios.date: 05/29/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1008
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: SABERTOOTH Z97 MARK 2
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1008:bd05/29/2014:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnSABERTOOTHZ97MARK2:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: All Series
  dmi.product.version: System Version
  dmi.sys.vendor: ASUS
  --- 
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  shc        3395 F.... pulseaudio
   /dev/snd/controlC1:  shc        3395 F.... pulseaudio
   /dev/snd/controlC0:  shc        3395 F.... pulseaudio
  DistroRelease: Ubuntu 14.04
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-01-09 (21 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: ASUS All Series
  NonfreeKernelModules: nvidia
  Package: linux-image-3.13.0-44-generic 3.13.0-44.73
  PackageArchitecture: amd64
  ProcEnviron:
   LD_LIBRARY_PATH=<set>
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   0 EFI VGA
   1 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-44-generic.efi.signed root=/dev/mapper/ubuntu--gnome--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-44-generic N/A
   linux-backports-modules-3.13.0-44-generic  N/A
   linux-firmware                             1.127.11
  RfKill:
   
  Tags: third-party-packages trusty
  Uname: Linux 3.13.0-44-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  _MarkForUpload: True
  dmi.bios.date: 05/29/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1008
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: SABERTOOTH Z97 MARK 2
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1008:bd05/29/2014:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnSABERTOOTHZ97MARK2:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: All Series
  dmi.product.version: System Version
  dmi.sys.vendor: ASUS

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