stat does not display ext4 crtime

[Chris Jones]

This is an Oneiric install which was upgraded to Precise.

-(cmsj@kiryo)-(~)- mount | head -1
/dev/sda1 on / type ext4 (rw,noatime,errors=remount-ro)

Note that / is mounted as ext4

-(cmsj@kiryo)-(~)- rm /tmp/statlol
-(cmsj@kiryo)-(~)- date
Wed May 9 13:50:18 BST 2012
-(cmsj@kiryo)-(~)- touch /tmp/statlol
-(cmsj@kiryo)-(~)- stat -c "%w" /tmp/statlol
-

This should have shown the current time as the "birth" time of the file.

-(cmsj@kiryo)-(~)- stat /tmp/statlol
  File: `/tmp/statlol'
  Size: 0 Blocks: 0 IO Block: 4096 regular empty file
Device: 801h/2049d Inode: 396056 Links: 1
Access: (0664/-rw-rw-r--) Uid: ( 1000/ cmsj) Gid: ( 1000/ cmsj)
Access: 2012-05-09 13:50:21.927574000 +0100
Modify: 2012-05-09 13:50:21.927574000 +0100
Change: 2012-05-09 13:50:21.927574000 +0100
 Birth: -

Full stat output shows that all other time fields are shown, but "Birth" (crtime) is not.

-(cmsj@kiryo)-(~)- sudo debugfs -R 'stat /tmp/statlol' /dev/sda1
Inode: 396056 Type: regular Mode: 0664 Flags: 0x80000
Generation: 4155105282 Version: 0x00000000:00000001
User: 1000 Group: 1000 Size: 0
File ACL: 0 Directory ACL: 0
Links: 1 Blockcount: 0
Fragment: Address: 0 Number: 0 Size: 0
 ctime: 0x4faa680d:dd269fc0 -- Wed May 9 13:50:21 2012
 atime: 0x4faa680d:dd269fc0 -- Wed May 9 13:50:21 2012
 mtime: 0x4faa680d:dd269fc0 -- Wed May 9 13:50:21 2012
crtime: 0x4faa680d:dd269fc0 -- Wed May 9 13:50:21 2012
Size of extra inode fields: 28
EXTENTS:
-(cmsj@kiryo)-(~)-

Calling stat() directly with debugfs shows that crtime is indeed populated correctly, which suggests that coreutils' stat(1) is not able to display it correctly.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: coreutils 8.13-3ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic i686
ApportVersion: 2.0.1-0ubuntu6
Architecture: i386
Date: Wed May 9 13:49:31 2012
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: coreutils
UpgradeStatus: Upgraded to precise on 2012-04-11 (28 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.