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Date: Sat, 30 Apr 2016 11:08:21 +0000
From: bugzilla-daemon@...zilla.kernel.org
To: linux-ext4@...r.kernel.org
Subject: [Bug 117421] New: e2fsprogs: mke2fs ignores sparse_super2 when also
using extent or 64bit
https://bugzilla.kernel.org/show_bug.cgi?id=117421
Bug ID: 117421
Summary: e2fsprogs: mke2fs ignores sparse_super2 when also
using extent or 64bit
Product: File System
Version: 2.5
Kernel Version: 4.2.8
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: ext4
Assignee: fs_ext4@...nel-bugs.osdl.org
Reporter: kellyc@...roundbackgrounds.com
Regression: No
Package: e2fsprogs
Version: 1.42.12-1.1
Severity: normal
File: /sbin/mke2fs
When creating an ext3/ext4 filesystem the sparse_super2 option is ignored and
defaults back to sparse_super when using extent or 64bit.
mke2fs should respect the use of sparse_super2 when using either or both -O
extent or -O 64bit.
Normal formatting using sparse_super and works as expected creating 2 backup
superblocks.
mke2fs /dev/sdq1 -t ext4 -b 4096 -O sparse_super2
mke2fs 1.42.12 (29-Aug-2014)
Creating filesystem with 61049344 4k blocks and 15269888 inodes
Filesystem UUID: cdaa09a3-dcb2-473a-9da8-7517a632db14
Superblock backups stored on blocks:
32768, 61046784
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
Using extent option with sparse_super2 creates more than 2 backup superblocks.
mke2fs /dev/sdq1 -t ext4 -b 4096 -O sparse_super2 -O extent
mke2fs 1.42.12 (29-Aug-2014)
Creating filesystem with 61049344 4k blocks and 15269888 inodes
Filesystem UUID: 4634627d-bd41-4f96-923d-21746f12cf1f
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632,
2654208,4096000, 7962624, 11239424, 20480000, 23887872
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
Using 64bit option with sparse_super2 creates more than 2 backup superblocks.
mke2fs /dev/sdq1 -t ext4 -b 4096 -O sparse_super2 -O 64bit
mke2fs 1.42.12 (29-Aug-2014)
Creating filesystem with 61049344 4k blocks and 15269888 inodes
Filesystem UUID: ef3ed24c-0183-40c9-b2de-0b8e9bb868bb
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
mke2fs (mkfs.ext4) should respect the sparse_super2 option when used with 64bit
or extent.
-- System Information:
Debian Release: 8.3
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.2.8-1-pve (SMP w/24 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages e2fsprogs depends on:
ii e2fslibs 1.42.12-1.1
ii libblkid1 2.25.2-6
ii libc6 2.19-18+deb8u3
ii libcomerr2 1.42.12-1.1
ii libss2 1.42.12-1.1
ii libuuid1 2.25.2-6
ii util-linux 2.25.2-6
e2fsprogs recommends no packages.
Versions of packages e2fsprogs suggests:
pn e2fsck-static <none>
pn gpart <none>
ii parted 3.2-7
-- no debconf information
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