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[Bug 1314358] [NEW] Strange processes

 

Public bug reported:

ps auxwww | grep "?/"

root       580  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       581  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root       582  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root       583  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root       584  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root       585  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root       586  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root       587  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/-2144731094]
root       588  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root       591  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       592  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       593  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       594  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       595  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       596  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       597  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       598  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       599  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       600  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       601  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       602  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       603  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       604  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       605  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       606  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       607  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       608  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       609  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       610  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       611  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       612  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       613  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       614  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       615  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       616  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       617  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       618  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       619  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       620  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       621  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       622  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root       623  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3930  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3931  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/-2144731094]
root      3932  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3933  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3934  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3935  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3936  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3937  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3938  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3939  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/-2144731094]
root      3940  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3941  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3942  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3943  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3944  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3945  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3946  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3947  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3948  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3949  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3950  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3951  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3952  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3953  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3954  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3955  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3956  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/-2144731094]
root      3957  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3958  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3959  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3960  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3961  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3962  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3963  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3964  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3965  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3966  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3967  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3968  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3969  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/-2144731094]
root      3970  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3971  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3972  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3973  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3974  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3975  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3976  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3977  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3978  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3979  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3980  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3981  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3982  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3983  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3984  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3985  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3986  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3987  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3988  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3989  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3990  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3991  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3992  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3993  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3994  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3995  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3996  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3997  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3998  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      3999  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4000  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4001  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4002  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4003  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4004  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4005  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4006  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4007  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4008  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4009  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4010  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4011  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4012  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4013  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4014  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4015  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4016  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4017  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4018  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
root      4110  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root      4203  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root      4270  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root      4274  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root      4278  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root      4282  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root      4286  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root      4290  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root      4294  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root      4298  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root      4302  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
root      4306  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]

A strace of one of these processes is not allowed, not even as root:
root in ~
$ strace -p 3969
strace: attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted
Could not attach to process.  If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user.  For more details, see /etc/sysctl.d/10-ptrace.conf

$ lsb_release -rd
Description:	Ubuntu 14.04 LTS
Release:	14.04

Please let us know if you need more information

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.13.0-24-generic.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory: 'iw'
Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
Date: Tue Apr 29 20:51:37 2014
InstallationDate: Installed on 2012-07-06 (662 days ago)
InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Release amd64 (20120424.1)
MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M.
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic root=UUID=6dd473c4-0b4e-4885-ac5b-816370a60982 ro
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-24-generic N/A
 linux-backports-modules-3.13.0-24-generic  N/A
 linux-firmware                             1.127
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-04-23 (6 days ago)
dmi.bios.date: 03/05/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F10
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: X79-UD5
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF10:bd03/05/2012:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnX79-UD5:rvrTobefilledbyO.E.M.:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To be filled by O.E.M.
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: Gigabyte Technology Co., Ltd.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug third-party-packages trusty

** Attachment added: "version.log"
   https://bugs.launchpad.net/bugs/1314358/+attachment/4100635/+files/version.log

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https://bugs.launchpad.net/bugs/1314358

Title:
  Strange processes

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  ps auxwww | grep "?/"

  root       580  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       581  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root       582  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root       583  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root       584  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root       585  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root       586  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root       587  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/-2144731094]
  root       588  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root       591  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       592  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       593  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       594  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       595  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       596  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       597  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       598  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       599  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       600  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       601  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       602  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       603  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       604  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       605  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       606  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       607  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       608  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       609  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       610  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       611  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       612  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       613  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       614  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       615  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       616  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       617  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       618  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       619  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       620  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       621  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       622  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root       623  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3930  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3931  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/-2144731094]
  root      3932  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3933  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3934  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3935  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3936  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3937  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3938  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3939  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/-2144731094]
  root      3940  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3941  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3942  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3943  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3944  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3945  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3946  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3947  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3948  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3949  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3950  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3951  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3952  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3953  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3954  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3955  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3956  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/-2144731094]
  root      3957  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3958  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3959  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3960  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3961  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3962  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3963  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3964  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3965  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3966  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3967  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3968  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3969  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/-2144731094]
  root      3970  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3971  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3972  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3973  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3974  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3975  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3976  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3977  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3978  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3979  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3980  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3981  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3982  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3983  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3984  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3985  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3986  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3987  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3988  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3989  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3990  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3991  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3992  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3993  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3994  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3995  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3996  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3997  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3998  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      3999  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4000  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4001  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4002  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4003  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4004  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4005  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4006  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4007  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4008  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4009  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4010  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4011  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4012  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4013  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4014  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4015  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4016  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4017  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4018  0.0  0.0      0     0 ?        SN   20:42   0:00 [?/0]
  root      4110  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root      4203  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root      4270  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root      4274  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root      4278  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root      4282  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root      4286  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root      4290  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root      4294  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root      4298  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root      4302  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]
  root      4306  0.0  0.0      0     0 ?        S<   20:42   0:00 [?/0]

  A strace of one of these processes is not allowed, not even as root:
  root in ~
  $ strace -p 3969
  strace: attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted
  Could not attach to process.  If your uid matches the uid of the target
  process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
  again as the root user.  For more details, see /etc/sysctl.d/10-ptrace.conf

  $ lsb_release -rd
  Description:	Ubuntu 14.04 LTS
  Release:	14.04

  Please let us know if you need more information

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-24-generic 3.13.0-24.46
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
  AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.13.0-24-generic.
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC0', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D2c', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory: 'iw'
  Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
  Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
  Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
  Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
  Date: Tue Apr 29 20:51:37 2014
  InstallationDate: Installed on 2012-07-06 (662 days ago)
  InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Release amd64 (20120424.1)
  MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M.
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic root=UUID=6dd473c4-0b4e-4885-ac5b-816370a60982 ro
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-04-23 (6 days ago)
  dmi.bios.date: 03/05/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F10
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: X79-UD5
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: To be filled by O.E.M.
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF10:bd03/05/2012:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnX79-UD5:rvrTobefilledbyO.E.M.:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To be filled by O.E.M.
  dmi.product.version: To be filled by O.E.M.
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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Follow ups

References