[Bug 392204] Re: Huge CPU usage by mount.ntfs process

[Lok]

I struggled with this problem for many days.  I am running Ubuntu12.04
on a server and dual RAID1 setups with dual 2TB disks in each.  Disks
are formatted with NTFS and are used with samba for windows files
storage.

A week ago our system started running slow after moving some files.
Results of the 'top' utility shows 99% CPU assigned to mount.ntfs-3g.
Despite several reboots same problem.

The solution that worked for me was to umount the affected drives and
run ntfsck on them.  The utility reported the drive was dirty.  To fix
the dirty flag I run ntfsfix -d /mnt/...  and then rechecked using
ntfsck.

After the dirty flag was cleared the system is back to normal.

Hope this helps anyone else with the same issues.

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https://bugs.launchpad.net/bugs/392204

Title:
  Huge CPU usage by mount.ntfs process

Status in NTFS-3G:
  New
Status in “ntfs-3g” package in Ubuntu:
  Confirmed

Bug description:
  While copying files from one ntfs partition to second ntfs partition
  process 'mount.ntfs' use 42 - 49% procesor resources (probably 100% on
  one core). Second 'mount.ntfs' process use 5% procesor time. (used
  'conky' for inspection)

  / and /home on first sata disk (ext4)
  file source on the second sata (ntfs)
  file target on third sata hdd (ntfs)

  Ubuntu 9.10 Alpha 1 (up-to-date)

  Athlon 2xCore
  nvidia 570 chipset

  ProblemType: Bug
  Architecture: i386
  Date: Thu Jun 25 19:11:54 2009
  DistroRelease: Ubuntu 9.10
  ExecutablePath: /usr/bin/nautilus
  NonfreeKernelModules: nvidia
  Package: nautilus 1:2.27.2-0ubuntu1
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.30-9.10-generic
  SourcePackage: nautilus
  Uname: Linux 2.6.30-9-generic i686

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