linux-ext4 - [Bug 200443] Operating non-crafted Ext4 image with inline_inodes option enabled causes "checksum invalid" error

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Message-ID: <bug-200443-13602-CxzB5fE8C2@https.bugzilla.kernel.org/>
Date:   Sat, 21 Jul 2018 15:28:15 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...nel.org
Subject: [Bug 200443] Operating non-crafted Ext4 image with inline_inodes
 option enabled causes "checksum invalid" error

https://bugzilla.kernel.org/show_bug.cgi?id=200443

--- Comment #6 from Anatoly Trosinenko (anatoly.trosinenko@...il.com) ---
Please excuse me for long delay.

Hmm... Still seems to be reproducible on tytso/dev (commit 362eca70). As far as
I understand, it includes this fix.

Steps to reproduce:
1) Compile commit 362eca70 with the attached config for x86_64 arch
2) Run mkinitrd.sh attached -- it will create self-contained initrd
3) Unpack ext4.img (it is expected to be non-crafted, freshly created ext4
image, but I attach the precise image I tested with in case it depends on mkfs
version)
4) Run 
   qemu-system-x86_64 -kernel path/to/linux.git/arch/x86/boot/bzImage -initrd
./initrd.cpio -m 512M -drive file=ext4.img,index=0,format=raw

What happens:

Remounting...
[    4.812614] EXT4-fs error (device sda): ext4_has_uninit_itable:3149: comm
exe: Inode table for bg 0 marked as needing zeroing
[    4.814356] EXT4-fs (sda): re-mounted. Opts: (null)

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