Package: diffutils
Version: 1:3.7-3
Severity: minor
Dear Maintainer,
I found a diff strangeness by accident while diffing two chroot trees.
It seems to be always reproductible for me, at least on this example :
root@lud-mn1:~# mkdir a b c; mknod a/null c 1 3; sleep .1; mknod b/null
c 1 3; sleep 1; mknod c/null c 1 3
diffing the files 2 by 2 on one side, and diffing the folders 2 by 2 on
other side give different results. I was expecting all following commands
to give a 0 return code and no output :
root@lud-mn1:~# LANG=C diff a/null b/null; echo $?
0
root@lud-mn1:~# LANG=C diff b/null c/null; echo $?
0
root@lud-mn1:~# LANG=C diff -r a b; echo $?
0
root@lud-mn1:~# LANG=C diff -r b c; echo $?
File b/null is a character special file while file c/null is a character
special file
1
For completeness, stat output to show that all timestamps are different.
I am on a regular ext4 mountpoint.
root@lud-mn1:~# LANG=C stat ?/null
File: a/null
Size: 0 Blocks: 0 IO Block: 4096 character
special file
Device: 807h/2055d Inode: 522435 Links: 1 Device type: 1,3
Access: (0644/crw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2019-06-02 21:39:41.061736947 +0200
Modify: 2019-06-02 21:39:41.061736947 +0200
Change: 2019-06-02 21:39:41.061736947 +0200
Birth: -
File: b/null
Size: 0 Blocks: 0 IO Block: 4096 character
special file
Device: 807h/2055d Inode: 547588 Links: 1 Device type: 1,3
Access: (0644/crw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2019-06-02 21:39:41.165737120 +0200
Modify: 2019-06-02 21:39:41.165737120 +0200
Change: 2019-06-02 21:39:41.165737120 +0200
Birth: -
File: c/null
Size: 0 Blocks: 0 IO Block: 4096 character
special file
Device: 807h/2055d Inode: 547590 Links: 1 Device type: 1,3
Access: (0644/crw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2019-06-02 21:39:42.165738785 +0200
Modify: 2019-06-02 21:39:42.165738785 +0200
Change: 2019-06-02 21:39:42.165738785 +0200
Birth: -
root@lud-mn1:~# LANG=C df -h .
Filesystem Size Used Avail Use% Mounted on
/dev/sda7 16G 14G 1.3G 92% /
root@lud-mn1:~# mount | grep ^/dev/sda7
/dev/sda7 on / type ext4 (rw,noatime,discard,errors=remount-ro)
This clearly do not cause real important troubles to me. But may be
nasty for containers fans.
-- System Information:
Debian Release: 10.0
APT prefers testing
APT policy: (990, 'testing'), (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.19.0-5-amd64 (SMP w/6 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8),
LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages diffutils depends on:
ii libc6 2.28-10
diffutils recommends no packages.
Versions of packages diffutils suggests:
pn diffutils-doc <none>
pn wdiff <none>
-- no debconf information
