[Bug 1319667] Re: root file system 100% full, goes 52% after reboot

[Sergei Vorobyov]

now 5 hours from my initial report

#df -h

hangs *indefinetely*,

whereas ncdu -x from / shows about 1/2 fullness (my root patition / is
about 23G)

    9,3GiB [##########] /usr                                                                                                                                                                                        
    1,3GiB [#         ] /var
  451,7MiB [          ] /lib
   62,8MiB [          ] /boot
   15,8MiB [          ] /etc
   12,2MiB [          ] /sbin
    9,6MiB [          ] /bin
    5,3MiB [          ] /root
  152,0KiB [          ] /tmp
   20,0KiB [          ] /mnt
e  16,0KiB [          ] /lost+found
    8,0KiB [          ] /media
    4,0KiB [          ] /lib64
e   4,0KiB [          ] /srv
e   4,0KiB [          ] /opt
    4,0KiB [          ] /export
e   4,0KiB [          ] /cdrom
@   0,0  B [          ]  initrd.img.old
@   0,0  B [          ]  initrd.img
@   0,0  B [          ]  vmlinuz.old
@   0,0  B [          ]  vmlinuz
>   0,0  B [          ] /sys
>   0,0  B [          ] /run
>   0,0  B [          ] /proc
>   0,0  B [          ] /home
>   0,0  B [          ] /dev

# fdisk -l /dev/sda

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x3de5d7d1

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      206847      102400    7  HPFS/NTFS/exFAT
/dev/sda2          206848   710531071   355162112    7  HPFS/NTFS/exFAT
/dev/sda3       710531072   759359196    24414062+  83  Linux
/dev/sda4       759361534   976771071   108704769    5  Extended
/dev/sda5       759361536   768149503     4393984   82  Linux swap / Solaris
/dev/sda6       768151552   976771071   104309760   83  Linux

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https://bugs.launchpad.net/bugs/1319667

Title:
  root file system 100% full, goes 52% after reboot

Status in “e2fsprogs” package in Ubuntu:
  New

Bug description:
  I am running several I/O intensive applications creating and deleting
  many files on the separate /home partition. After about a day of
  operation my root file system / containing everything except /home
  goes 100% full, although running ncdu -x from / shows just about 50%
  fullness. 100% goes down to (correct) 52% after a reboot. Note that
  all my files are created within the mounted /home partition. I do not
  run any specific process as a root (beyond those of a stock Ubuntu
  14.04 distribution).

  $ df -h
  Filesystem              Size  Used Avail Use% Mounted on
  /dev/sda3                23G   12G   11G  52% /
  /dev/sda6                98G   67G   27G  72% /home

  1)
  $ lsb_release -rd
  Description:	Ubuntu 14.04 LTS
  Release:	14.04

  2)
  $ apt-cache policy e2fslibs
  e2fslibs:
    Installed: 1.42.9-3ubuntu1
    Candidate: 1.42.9-3ubuntu1
    Version table:
   *** 1.42.9-3ubuntu1 0
          500 http://se.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
          100 /var/lib/dpkg/status

  3) I expect my file systems to be cleaned up withoutr rebooting

  4) the root file system overflows just after 1 day of normal operation

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: e2fslibs 1.42.9-3ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu May 15 09:04:23 2014
  Dependencies:
   gcc-4.9-base 4.9-20140406-0ubuntu1
   libc6 2.19-0ubuntu6
   libgcc1 1:4.9-20140406-0ubuntu1
   multiarch-support 2.19-0ubuntu6
  InstallationDate: Installed on 2014-02-10 (93 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  SourcePackage: e2fsprogs
  UpgradeStatus: Upgraded to trusty on 2014-04-22 (22 days ago)

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