[Bug 1364492] [NEW] findutils uses nearly 100% CPU and memory resources

Filippos Kolyvas 1364492 at bugs.launchpad.net
Tue Sep 2 16:22:03 UTC 2014 

Public bug reported:

findutils is using a find command, probably to auto-update indexing database.
While this is normal behaviour, i found out that shortly after the indexing update started, findutils is using 100% of CPU resources (Haswell Pentium G3258), all of my system's memory (8GB RAM) and some of the swap, rendering the system completely unusable.

Issueing the command 'ps ax | grep find' results in:
29729 ?        SN     0:00 /bin/sh /usr/bin/updatedb.findutils
29737 ?        SN     0:00 /bin/sh /usr/bin/updatedb.findutils
29758 ?        SN     0:00 su nobody -s /bin/sh -c /usr/bin/find / -ignore_readdir_race      \( -fstype NFS -o -fstype nfs -o -fstype nfs4 -o -fstype afs -o -fstype binfmt_misc -o -fstype proc -o -fstype smbfs -o -fstype autofs -o -fstype iso9660 -o -fstype ncpfs -o -fstype coda -o -fstype devpts -o -fstype ftpfs -o -fstype devfs -o -fstype mfs -o -fstype shfs -o -fstype sysfs -o -fstype cifs -o -fstype lustre_lite -o -fstype tmpfs -o -fstype usbfs -o -fstype udf -o -fstype ocfs2 -o      -type d -regex '\(^/tmp$\)\|\(^/usr/tmp$\)\|\(^/var/tmp$\)\|\(^/afs$\)\|\(^/amd$\)\|\(^/alex$\)\|\(^/var/spool$\)\|\(^/sfs$\)\|\(^/media$\)\|\(^/var/lib/schroot/mount$\)' \) -prune -o -print0
29767 ?        SNs    0:00 sh -c /usr/bin/find / -ignore_readdir_race      \( -fstype NFS -o -fstype nfs -o -fstype nfs4 -o -fstype afs -o -fstype binfmt_misc -o -fstype proc -o -fstype smbfs -o -fstype autofs -o -fstype iso9660 -o -fstype ncpfs -o -fstype coda -o -fstype devpts -o -fstype ftpfs -o -fstype devfs -o -fstype mfs -o -fstype shfs -o -fstype sysfs -o -fstype cifs -o -fstype lustre_lite -o -fstype tmpfs -o -fstype usbfs -o -fstype udf -o -fstype ocfs2 -o      -type d -regex '\(^/tmp$\)\|\(^/usr/tmp$\)\|\(^/var/tmp$\)\|\(^/afs$\)\|\(^/amd$\)\|\(^/alex$\)\|\(^/var/spool$\)\|\(^/sfs$\)\|\(^/media$\)\|\(^/var/lib/schroot/mount$\)' \) -prune -o -print0
29768 ?        RN    57:29 /usr/bin/find / -ignore_readdir_race ( -fstype NFS -o -fstype nfs -o -fstype nfs4 -o -fstype afs -o -fstype binfmt_misc -o -fstype proc -o -fstype smbfs -o -fstype autofs -o -fstype iso9660 -o -fstype ncpfs -o -fstype coda -o -fstype devpts -o -fstype ftpfs -o -fstype devfs -o -fstype mfs -o -fstype shfs -o -fstype sysfs -o -fstype cifs -o -fstype lustre_lite -o -fstype tmpfs -o -fstype usbfs -o -fstype udf -o -fstype ocfs2 -o -type d -regex \(^/tmp$\)\|\(^/usr/tmp$\)\|\(^/var/tmp$\)\|\(^/afs$\)\|\(^/amd$\)\|\(^/alex$\)\|\(^/var/spool$\)\|\(^/sfs$\)\|\(^/media$\)\|\(^/var/lib/schroot/mount$\) ) -prune -o -print0

Results from 'top':
top - 19:16:00 up  1:40,  3 users,  load average: 1,14, 1,20, 1,53
Tasks: 274 total,   2 running, 272 sleeping,   0 stopped,   0 zombie
%Cpu(s):  2,9 us, 22,9 sy, 24,4 ni, 42,4 id,  7,6 wa,  0,0 hi,  0,0 si,  0,0 st
KiB Mem:   8086304 total,  7876904 used,   209400 free,       60 buffers
KiB Swap: 20971516 total,   373796 used, 20597720 free.  4627412 cached Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                         
29768 nobody    30  10   14968   1556   1116 R  92,2  0,0  70:16.74 find                            

System installation is Ubuntu Utopic on Unity 7 desktop, using nouveau nvidia drivers.
findutils version is  4.4.2-9

Sorry for posting the commands output in here, if there is another
guideline for this i'll be happy to edit that.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: findutils 4.4.2-9
ProcVersionSignature: Ubuntu 3.16.0-11.16-generic 3.16.1
Uname: Linux 3.16.0-11-generic x86_64
ApportVersion: 2.14.7-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Sep  2 19:03:25 2014
Dependencies:
 gcc-4.9-base 4.9.1-10ubuntu2
 libc6 2.19-10ubuntu1
 libgcc1 1:4.9.1-10ubuntu2
 multiarch-support 2.19-10ubuntu1
InstallationDate: Installed on 2014-08-19 (14 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140815)
SourcePackage: findutils
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: findutils (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug utopic

** Summary changed:

- findutils uses nearly 100% CPU and memory reources
+ findutils uses nearly 100% CPU and memory resources

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https://bugs.launchpad.net/bugs/1364492

Title:
  findutils uses nearly 100% CPU and memory resources

Status in “findutils” package in Ubuntu:
  New

Bug description:
  findutils is using a find command, probably to auto-update indexing database.
  While this is normal behaviour, i found out that shortly after the indexing update started, findutils is using 100% of CPU resources (Haswell Pentium G3258), all of my system's memory (8GB RAM) and some of the swap, rendering the system completely unusable.

  Issueing the command 'ps ax | grep find' results in:
  29729 ?        SN     0:00 /bin/sh /usr/bin/updatedb.findutils
  29737 ?        SN     0:00 /bin/sh /usr/bin/updatedb.findutils
  29758 ?        SN     0:00 su nobody -s /bin/sh -c /usr/bin/find / -ignore_readdir_race      \( -fstype NFS -o -fstype nfs -o -fstype nfs4 -o -fstype afs -o -fstype binfmt_misc -o -fstype proc -o -fstype smbfs -o -fstype autofs -o -fstype iso9660 -o -fstype ncpfs -o -fstype coda -o -fstype devpts -o -fstype ftpfs -o -fstype devfs -o -fstype mfs -o -fstype shfs -o -fstype sysfs -o -fstype cifs -o -fstype lustre_lite -o -fstype tmpfs -o -fstype usbfs -o -fstype udf -o -fstype ocfs2 -o      -type d -regex '\(^/tmp$\)\|\(^/usr/tmp$\)\|\(^/var/tmp$\)\|\(^/afs$\)\|\(^/amd$\)\|\(^/alex$\)\|\(^/var/spool$\)\|\(^/sfs$\)\|\(^/media$\)\|\(^/var/lib/schroot/mount$\)' \) -prune -o -print0
  29767 ?        SNs    0:00 sh -c /usr/bin/find / -ignore_readdir_race      \( -fstype NFS -o -fstype nfs -o -fstype nfs4 -o -fstype afs -o -fstype binfmt_misc -o -fstype proc -o -fstype smbfs -o -fstype autofs -o -fstype iso9660 -o -fstype ncpfs -o -fstype coda -o -fstype devpts -o -fstype ftpfs -o -fstype devfs -o -fstype mfs -o -fstype shfs -o -fstype sysfs -o -fstype cifs -o -fstype lustre_lite -o -fstype tmpfs -o -fstype usbfs -o -fstype udf -o -fstype ocfs2 -o      -type d -regex '\(^/tmp$\)\|\(^/usr/tmp$\)\|\(^/var/tmp$\)\|\(^/afs$\)\|\(^/amd$\)\|\(^/alex$\)\|\(^/var/spool$\)\|\(^/sfs$\)\|\(^/media$\)\|\(^/var/lib/schroot/mount$\)' \) -prune -o -print0
  29768 ?        RN    57:29 /usr/bin/find / -ignore_readdir_race ( -fstype NFS -o -fstype nfs -o -fstype nfs4 -o -fstype afs -o -fstype binfmt_misc -o -fstype proc -o -fstype smbfs -o -fstype autofs -o -fstype iso9660 -o -fstype ncpfs -o -fstype coda -o -fstype devpts -o -fstype ftpfs -o -fstype devfs -o -fstype mfs -o -fstype shfs -o -fstype sysfs -o -fstype cifs -o -fstype lustre_lite -o -fstype tmpfs -o -fstype usbfs -o -fstype udf -o -fstype ocfs2 -o -type d -regex \(^/tmp$\)\|\(^/usr/tmp$\)\|\(^/var/tmp$\)\|\(^/afs$\)\|\(^/amd$\)\|\(^/alex$\)\|\(^/var/spool$\)\|\(^/sfs$\)\|\(^/media$\)\|\(^/var/lib/schroot/mount$\) ) -prune -o -print0

  Results from 'top':
  top - 19:16:00 up  1:40,  3 users,  load average: 1,14, 1,20, 1,53
  Tasks: 274 total,   2 running, 272 sleeping,   0 stopped,   0 zombie
  %Cpu(s):  2,9 us, 22,9 sy, 24,4 ni, 42,4 id,  7,6 wa,  0,0 hi,  0,0 si,  0,0 st
  KiB Mem:   8086304 total,  7876904 used,   209400 free,       60 buffers
  KiB Swap: 20971516 total,   373796 used, 20597720 free.  4627412 cached Mem

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                         
  29768 nobody    30  10   14968   1556   1116 R  92,2  0,0  70:16.74 find                            

  System installation is Ubuntu Utopic on Unity 7 desktop, using nouveau nvidia drivers.
  findutils version is  4.4.2-9

  Sorry for posting the commands output in here, if there is another
  guideline for this i'll be happy to edit that.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: findutils 4.4.2-9
  ProcVersionSignature: Ubuntu 3.16.0-11.16-generic 3.16.1
  Uname: Linux 3.16.0-11-generic x86_64
  ApportVersion: 2.14.7-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Sep  2 19:03:25 2014
  Dependencies:
   gcc-4.9-base 4.9.1-10ubuntu2
   libc6 2.19-10ubuntu1
   libgcc1 1:4.9.1-10ubuntu2
   multiarch-support 2.19-10ubuntu1
  InstallationDate: Installed on 2014-08-19 (14 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140815)
  SourcePackage: findutils
  UpgradeStatus: No upgrade log present (probably fresh install)

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