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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1301245

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

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

** Tags added: saucy

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https://bugs.launchpad.net/bugs/1301245

Title:
  System unresponsive under (IO/memory?) load

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Tasks producing a lot of IO activity and/or use large amount of memory
  (uncompressing a .tar.gz file, starting a VM in virtualbox) starve the
  rest of the system. The system is responding to user input very slowly
  (jerky mouse pointer movement with >1s intervals etc). I have not seen
  that issue on previous Ubuntu versions, this is the first time I use a
  64 bit system with full disk encryption.

  64bit Xubuntu 13.10. Full disk encryption. 4GB memory. Sony Vaio
  laptop. Same behavior observed with Nouveau and NVidia drivers.

  $ uname -a
  Linux laptop 3.11.0-18-generic #32-Ubuntu SMP Tue Feb 18 21:11:14 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

  $ free -m
               total       used       free     shared    buffers     cached
  Mem:          3870       2580       1289          0         33        406
  -/+ buffers/cache:       2140       1730
  Swap:         4011        959       3052

  $ lspci
  00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02)
  00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express x16 Root Port (rev 02)
  00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
  00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
  00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05)
  00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 05)
  00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 (rev 05)
  00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 05)
  00:1c.5 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 6 (rev 05)
  00:1c.6 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 7 (rev 05)
  00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
  00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5)
  00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 05)
  00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 05)
  00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05)
  00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 05)
  01:00.0 VGA compatible controller: NVIDIA Corporation GT218M [GeForce 310M] (rev a2)
  01:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1)
  02:00.0 Network controller: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express) (rev 01)
  03:00.0 SD Host controller: Ricoh Co Ltd MMC/SD Host Controller
  03:00.1 System peripheral: Ricoh Co Ltd R5U2xx (R5U230 / R5U231 / R5U241) [Memory Stick Host Controller]
  03:00.3 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 PCIe IEEE 1394 Controller
  03:00.4 SD Host controller: Ricoh Co Ltd MMC/SD Host Controller
  04:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8057 PCI-E Gigabit Ethernet Controller (rev 10)
  05:00.0 Multimedia controller: Fujitsu Limited. Device 2036
  06:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 03)
  3f:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 02)
  3f:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 02)
  3f:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 02)
  3f:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 02)
  3f:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 02)
  3f:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 02)

  $ lsmod 
  Module                  Size  Used by
  pci_stub               12622  1 
  vboxpci                23194  0 
  vboxnetadp             25670  0 
  vboxnetflt             27613  0 
  vboxdrv               320455  3 vboxnetadp,vboxnetflt,vboxpci
  bnep                   19704  2 
  rfcomm                 69130  16 
  parport_pc             32701  0 
  ppdev                  17671  0 
  snd_hda_codec_hdmi     41154  4 
  snd_hda_codec_realtek    56475  1 
  snd_hda_intel          52267  5 
  snd_hda_codec         188738  3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
  uvcvideo               80885  1 
  intel_powerclamp       14705  0 
  snd_hwdep              13602  1 snd_hda_codec
  coretemp               13435  0 
  videobuf2_vmalloc      13216  1 uvcvideo
  videobuf2_memops       13362  1 videobuf2_vmalloc
  snd_pcm               102033  3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
  kvm_intel             138567  0 
  kvm                   431754  1 kvm_intel
  videobuf2_core         40499  1 uvcvideo
  pn533                  34880  0 
  arc4                   12608  2 
  videodev              133509  3 uvcvideo,videobuf2_core
  nfc                    94643  1 pn533
  snd_page_alloc         18710  2 snd_pcm,snd_hda_intel
  joydev                 17377  0 
  snd_seq_midi           13324  0 
  snd_seq_midi_event     14899  1 snd_seq_midi
  snd_rawmidi            30095  1 snd_seq_midi
  ath9k                 155779  0 
  ath9k_common           13859  1 ath9k
  ath9k_hw              444732  2 ath9k_common,ath9k
  snd_seq                61560  2 snd_seq_midi_event,snd_seq_midi
  btusb                  28267  0 
  ath                    23827  3 ath9k_common,ath9k,ath9k_hw
  snd_seq_device         14497  3 snd_seq,snd_rawmidi,snd_seq_midi
  mac80211              597268  1 ath9k
  cfg80211              480503  3 ath,ath9k,mac80211
  psmouse                97655  0 
  bluetooth             372041  22 bnep,btusb,rfcomm
  snd_timer              29433  2 snd_pcm,snd_seq
  snd                    69141  21 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
  soundcore              12680  1 snd
  microcode              23656  0 
  serio_raw              13413  0 
  mac_hid                13205  0 
  intel_ips              18470  0 
  sony_laptop            54219  0 
  lpc_ich                21080  0 
  lp                     17759  0 
  parport                42299  3 lp,ppdev,parport_pc
  binfmt_misc            17468  1 
  ext2                   72949  1 
  dm_crypt               22832  1 
  raid10                 48079  0 
  raid456                77558  0 
  async_memcpy           12769  1 raid456
  async_raid6_recov      12984  1 raid456
  async_pq               13326  1 raid456
  async_xor              13121  2 async_pq,raid456
  async_tx               13509  5 async_pq,raid456,async_xor,async_memcpy,async_raid6_recov
  xor                    21411  1 async_xor
  raid6_pq               97812  2 async_pq,async_raid6_recov
  raid1                  35557  0 
  raid0                  17842  0 
  multipath              13145  0 
  linear                 12894  0 
  hid_generic            12548  0 
  usbhid                 53014  0 
  hid                   101762  2 hid_generic,usbhid
  mmc_block              35880  0 
  nouveau               943749  2 
  crct10dif_pclmul       14289  0 
  mxm_wmi                13021  1 nouveau
  crc32_pclmul           13113  0 
  ghash_clmulni_intel    13259  0 
  aesni_intel            55624  3 
  aes_x86_64             17131  1 aesni_intel
  lrw                    13286  1 aesni_intel
  gf128mul               14951  1 lrw
  glue_helper            13990  1 aesni_intel
  ablk_helper            13597  1 aesni_intel
  cryptd                 20359  4 ghash_clmulni_intel,aesni_intel,ablk_helper
  i2c_algo_bit           13413  1 nouveau
  ahci                   25819  2 
  ttm                    84169  1 nouveau
  libahci                32009  1 ahci
  drm_kms_helper         52710  1 nouveau
  sky2                   58191  0 
  firewire_ohci          40327  0 
  firewire_core          64534  1 firewire_ohci
  sdhci_pci              18981  0 
  drm                   297056  4 ttm,drm_kms_helper,nouveau
  sdhci                  42898  1 sdhci_pci
  crc_itu_t              12707  1 firewire_core
  wmi                    19070  2 mxm_wmi,nouveau
  video                  19318  1 nouveau

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