Re: ext4 df free space reporting not reliable?

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On Jun 13, 2010, at 5:38 AM, Andi Kleen wrote:

> Hi,
> 
> I have a ext4 file system on 2.6.34 that shows 0 blocks available
> in "df" (it's nearly full but never got a ENOSPC). 
> 
> But when I delete a couple of files it still shows 0 blocks.
> And I can actually create small files without problem, so clearly
> there is at least some space available.
> 
> So is df reporting not accurate?

Are you creating the files as root?  Sounds like the standard reserved
blocks behavior that's been around since ext3, ext2, BSD's ufs, etc...

- Ted

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