From: Jim Meyering Subject: Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?) Date: Thu, 14 Apr 2011 21:39:39 +0200 Message-ID: <8739lksjus.fsf@rho.meyering.net> References: <20110414102608.GA1678@x4.trippels.de> <20110414120635.GB1678@x4.trippels.de> <20110414140222.GB1679@x4.trippels.de> <4DA70BD3.1070409@draigBrady.com> <4DA717B2.3020305@sandeen.net> <4DA7182B.8050409@draigBrady.com> <878vvcspz0.fsf@rho.meyering.net> Mime-Version: 1.0 Content-Type: text/plain Cc: linux-ext4-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Eric Sandeen , coreutils-mXXj517/zsQ@public.gmane.org, Markus Trippelsdorf , xfs-oss To: =?iso-8859-1?Q?P=E1draig?= Brady Return-path: In-Reply-To: <878vvcspz0.fsf-CybKA8TIZ99x3y/oJEDuiw@public.gmane.org> (Jim Meyering's message of "Thu, 14 Apr 2011 19:27:31 +0200") List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: coreutils-bounces+gcgcg-coreutils=m.gmane.org-mXXj517/zsQ@public.gmane.org Sender: coreutils-bounces+gcgcg-coreutils=m.gmane.org-mXXj517/zsQ@public.gmane.org List-Id: linux-ext4.vger.kernel.org Jim Meyering wrote: ... > FYI, I see the same failure now using ext3 (and but not w/ext4) > with rawhide's 2.6.39-0.rc2.git0.0.fc16.x86_64: Correction. The failure below is not on ext3, but on a loopback-mounted ext4 file system. The test detected that the current FS was ext3 -- and it's known that this test is not useful on ext3 -- and since I was running it as root, it creates a loopback ext4 file system on which to run the test. > + df -t ext3 . > + require_root_ > + uid_is_privileged_ > ++ id -u > + my_uid=0 However, other strange things are happening here. I'm investigating.