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Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?)
From: |
Markus Trippelsdorf |
Subject: |
Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?) |
Date: |
Thu, 14 Apr 2011 14:06:35 +0200 |
On 2011.04.14 at 12:26 +0200, 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?
Apparently yes:
Here is a "make check" failure example:
FAIL: cp/fiemap-empty (exit: 1)
===============================
...
+ fallocate -l 10MiB -n unwritten.withdata
+ dd count=10 if=/dev/urandom conv=notrunc iflag=fullblock
of=unwritten.withdata
10+0 records in
10+0 records out
5120 bytes (5.1 kB) copied, 0.00219578 s, 2.3 MB/s
+ cp unwritten.withdata cp.test
++ stat -c %s unwritten.withdata
++ stat -c %s cp.test
+ test 5120 = 5120
+ cmp unwritten.withdata cp.test
unwritten.withdata cp.test differ: char 1, line 1
+ fail=1
--
Markus
- Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?), Markus Trippelsdorf, 2011/04/14
- Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?),
Markus Trippelsdorf <=
- Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?), Markus Trippelsdorf, 2011/04/14
- Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?), Pádraig Brady, 2011/04/14
- Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?), Eric Sandeen, 2011/04/14
- Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?), Pádraig Brady, 2011/04/14
- Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?), Eric Sandeen, 2011/04/14
- Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?), Markus Trippelsdorf, 2011/04/14
- Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?), Eric Sandeen, 2011/04/14
- Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?), Yongqiang Yang, 2011/04/14
- Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?), Markus Trippelsdorf, 2011/04/14
- Re: Files full of zeros with coreutils-8.11 and xfs (FIEMAP related?), Eric Sandeen, 2011/04/14