linux-kernel - Re: Problem: df on tmpfs not reported correctly when filesystem is full

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Message-ID: <20110519183919.79b3a605@neptune.home>
Date:	Thu, 19 May 2011 18:39:19 +0200
From:	Bruno Prémont <bonbons@...ux-vserver.org>
To:	Emil Natan <ena@...c.org.il>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Problem: df on tmpfs not reported correctly when filesystem is
 full

Hi,

On Thu, 19 May 2011 Emil Natan <ena@...c.org.il> wrote:
> The problem seems to have been introduced in version linux-2.6.36 and
> up, it works well in 2.6.35.13. When tmpfs filesystem is full, in the
> output of df command the "Used", "Available" and  "Use%" the numbers
> are replaced with hyphens:
> 
> # df /images/1
> Filesystem           1K-blocks      Used Available Use% Mounted on
> tmpfs                     1024         -         -   -  /images/1
> 
> Here is how it looks with "good" and "bad" kernel and how to reproduce
> the issue. Please let me know if more debug information is needed in
> a mail cc-ied directly to me.

This was fixed in 2.6.39 (now released) with following patch:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fc5da22ae35d4720be59af8787a8a6d5e4da9517

It's already queued for stable so it should show up there soon.

Bruno
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