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Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?)

To: Markus Trippelsdorf <markus@xxxxxxxxxxxxxxx>
Subject: Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?)
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Thu, 14 Apr 2011 09:39:02 -0500
Cc: coreutils@xxxxxxx, xfs@xxxxxxxxxxx
In-reply-to: <20110414102608.GA1678@xxxxxxxxxxxxxx>
References: <20110414102608.GA1678@xxxxxxxxxxxxxx>
User-agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9
On 4/14/11 5:26 AM, Markus Trippelsdorf wrote:
> I trashed my system this morning when I installed coreutils-8.11.
> 
> What happened is that coreutils compiles and links correctly, but
> then the following command (during the installation phase):
> 
> ./ginstall chroot hostid nice who users pinky stty df stdbuf [ base64
> basename cat chcon chgrp chmod chown cksum comm cp csplit cut date dd
> dir dircolors dirname du echo env expand expr factor false fmt fold
> head id join link ln logname ls md5sum mkdir mkfifo mknod mktemp mv
> nl nproc nohup od paste pathchk pr printenv printf ptx pwd readlink
> rm rmdir runcon seq sha1sum sha224sum sha256sum sha384sum sha512sum
> shred shuf sleep sort split stat sum sync tac tail tee test timeout
> touch tr true truncate tsort tty uname unexpand uniq unlink vdir wc
> whoami yes arch
> '/var/tmp/portage/sys-apps/coreutils-8.11/image//usr/bin'
> 
> apparently produces files which have the length of the originals but
> are full of zeros. (and these were then installed to my live system,
> thereby trashing it).
> 
> Now all the above is automated, because I use gentoo. But when I run
> the command above (ginstall) later again by hand, everything is
> copied just fine and the resulting binaries are all usable.
> 
> The partition in question uses xfs.
> 
> # xfs_info /var meta-data=/dev/sda1              isize=256
> agcount=4, agsize=12800000 blks =                       sectsz=4096
> attr=2 data     =                       bsize=4096   blocks=51200000,
> imaxpct=25 =                       sunit=0      swidth=0 blks naming
> =version 2              bsize=4096   ascii-ci=0 log      =internal
> bsize=4096   blocks=25000, version=2 =
> sectsz=4096  sunit=1 blks, lazy-count=1 realtime =none
> extsz=4096   blocks=0, rtextents=0
> 
> This is a 4kb hard drive (sectsz=4096).
> 
> I'm running the lastest vanilla git kernel
> (2.6.39-rc3-00087-gda768a4).
> 
> Now my question is, could this be caused by the recent FIEMAP changes
> in coreutils?


Well damn.  Looking into it ...

-Eric

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