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[Bug 1232473] Re: depmod fills disk to 100% with invisible modules.ccwmap

 

@penalvch

I haven't encountered this issue since I made this report (there have
been several kernel updates and the issue hasn't repeated). So I'd
rather not update my BIOS at this time (some risk involved, also time
investment doing backups, etc.).

I guess we can just let this bug expire (unless this issue still affects
other users).

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https://bugs.launchpad.net/bugs/1232473

Title:
  depmod fills disk to 100% with invisible modules.ccwmap

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I ran update manager, it was installing a new kernel
  (3.2.0-54-generic). Then an error dialog/message popped up that the
  disk (root partition) was full, the dialog had two buttons (examine -
  starts baobab and skip/cancel).

  At first I tried to find any big files (du didn't help, showed that
  only 8GB of 20GB was used). Long story short, googled a bit about why
  df and du might disagree and someone recommended lsof | grep deleted.

  depmod (i think) had created a file and deleted it then kept writing
  to it filling up my root partition. In the end I had to kill it,
  because it just kept writing to it even when I zeroed out that deleted
  file.

  Here's a log (shortened) of what I typed in the console:

  root@localhost:/# lsof | grep deleted | grep depmod
  depmod     8673       root    3w      REG                8,1 14525296640     676388 /lib/modules/3.2.0-54-generic/modules.ccwmap (deleted)

  root@localhost:/# cd /proc/8673/fd

  root@localhost:/proc/8673/fd# ll -h | grep ccwmap
  l-wx------ 1 root root 64 sep 28 16:52 3 -> /lib/modules/3.2.0-54-generic/modules.ccwmap (deleted)

  root@localhost:/proc/8673/fd# > 3

  root@localhost:/proc/8673/fd# df -h | grep sda1
  /dev/sda1               22G  9,3G   12G  45% /

  root@localhost:/proc/8673/fd# lsof | grep deleted | grep depmod
  depmod     8673       root    3w      REG                8,1 27424661504     676388 /lib/modules/3.2.0-54-generic/modules.ccwmap (deleted)

  root@localhost:/proc/8673/fd# df -h | grep sda1
  /dev/sda1               22G   22G     0 100% /

  root@localhost:/proc/8673/fd# > 3

  root@localhost:/proc/8673/fd# df -h | grep sda1
  /dev/sda1               22G  8,8G   13G  42% /

  root@localhost:/proc/8673/fd# df -h | grep sda1
  /dev/sda1               22G   11G   11G  49% /

  root@localhost:/proc/8673/fd# pkill depmod

  Seems I'm not the only one who's seen this issue with kernel updates:
  http://askubuntu.com/questions/157740/updating-to-linux-image-3-2-0-26
  -generic-occupies-all-disk-space

  ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  andris     2142 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf1c00000 irq 50'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:10ec0269,10280446,00100100 HDA:80862805,80860101,00100000'
     Controls      : 25
     Simple ctrls  : 12
  DistroRelease: Ubuntu 12.04
  EcryptfsInUse: Yes
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  MachineType: Dell Inc. Dell System XPS 15Z
  MarkForUpload: True
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-53-generic root=UUID=9543673d-3cae-4de0-ad02-31f9d0ae1614 ro quiet splash elevator=noop vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-53.81-generic 3.2.50
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-53-generic N/A
   linux-backports-modules-3.2.0-53-generic  N/A
   linux-firmware                            1.79.6
  StagingDrivers: mei
  Tags:  precise running-unity staging
  Uname: Linux 3.2.0-53-generic x86_64
  UpgradeStatus: Upgraded to precise on 2012-06-02 (482 days ago)
  UserGroups: adm admin cdrom dialout fuse lpadmin plugdev sambashare vboxusers wireshark
  dmi.bios.date: 08/11/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A05
  dmi.board.name: 0MFNCV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA05:bd08/11/2011:svnDellInc.:pnDellSystemXPS15Z:pvr:rvnDellInc.:rn0MFNCV:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS 15Z
  dmi.sys.vendor: Dell Inc.

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