Package: e2fsprogs
Version: 1.46.2-2
Severity: normal
Dear Maintainer,
* What led up to the situation?
Trying to create a filesystem on a file for loopback mounting
* What exactly did you do that was ineffective
rm -f file
truncate file -s 1G
/sbin/mkfs.ext4 -D -E lazy_itable_init=0 -E lazy_journal_init=0 -i 12288
-F -m1
file
sync # for good measure
/sbin/e2fsck -fn file
* What was the outcome of this action?
Block bitmap differences: +(32768--32896) +(98304--98432) +(163840--163968)
Fix? no
Free blocks count wrong for group #1 (32639, counted=32768).
Fix? no
...
Padding at end of inode bitmap is not set. Fix? no
Inode bitmap differences: Group 1 inode bitmap does not match checksum.
IGNORED.
Group 2 inode bitmap does not match checksum.
IGNORED.
...
file: ********** WARNING: Filesystem still has errors **********
file: 11/87424 files (0.0% non-contiguous), 14323/262144 blocks
* What outcome did you expect instead?
I would have liked a filesystem that passes e2fsck without problems.
If I run the mkfs.ext4 command without -D, I don't see the problem.
I speculate that mkfs exits before IO is completed, and some writes
don't happen. But I really don't know. Else perhaps the kernel keeps
an outdated copy of the filesystem in cache, that is not updated or
flushed when the direct writes happen. I have not tested this on a
partition, I guess that is more likely to complete successfully.
-- System Information:
Debian Release: 11.4
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500,
'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 5.10.0-16-amd64 (SMP w/8 CPU threads)
Locale: LANG=en_NZ.UTF-8, LC_CTYPE=en_NZ.UTF-8 (charmap=UTF-8),
LANGUAGE=en_NZ:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages e2fsprogs depends on:
ii libblkid1 2.36.1-8+deb11u1
ii libc6 2.31-13+deb11u3
ii libcom-err2 1.46.2-2
ii libext2fs2 1.46.2-2
ii libss2 1.46.2-2
ii libuuid1 2.36.1-8+deb11u1
ii logsave 1.46.2-2
Versions of packages e2fsprogs recommends:
pn e2fsprogs-l10n <none>
Versions of packages e2fsprogs suggests:
pn e2fsck-static <none>
pn fuse2fs <none>
pn gpart <none>
ii parted 3.4-1
-- no debconf information
Thanks,
Alex
