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lsof | grep /var is giving me following error

lsof: WARNING: can't stat() fuse.gvfs-fuse-daemon file system /home/user/.gvfs
  Output information may be incomplete.

what can be possible reason for it?

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up vote 8 down vote accepted

It's a virtual filesystem, used by gnome. It doesn't implement everything stat() wants to get so it returns an error. Here is a quote from Fedora mailing list about a similar problem:

The issue is that when the user is logged in, fuse creates a memory resident filesystem interpreted by the user process.

This user process doesn't implement anything but owner. All else is refused. Root can't access it because it isn't the owner, and can't override that because the fuse filesystem doesn't implement/support the override.

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I got your point. I see such type of warnings come in rsync etc also. – Registered User Mar 12 '11 at 5:43

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