linux-ext4 - [Bug 215712] kernel deadlocks while mounting the image

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Message-ID: <bug-215712-13602-WZBAr9uLZu@https.bugzilla.kernel.org/>
Date:   Mon, 21 Mar 2022 12:32:07 +0000
From:   bugzilla-daemon@...nel.org
To:     linux-ext4@...r.kernel.org
Subject: [Bug 215712] kernel deadlocks while mounting the image

https://bugzilla.kernel.org/show_bug.cgi?id=215712

--- Comment #1 from Artem S. Tashkinov (aros@....com) ---
(In reply to bughunter from comment #0)
> I have created an image with mkfs.ext4, and modified some of the metadata of
> the image. Unfortunately, when I tried to mount the image with a loop
> device, the kernel deadlocked. I have attempted many ways to stop the mount
> process, even executed a 'kill' command, but they are failed, only what I
> can do is to reboot the system. Can anyone tell me why the kernel
> deadlocked, and how can I fix this problem?

That's a bug in the kernel, this situation shouldn't happen. Hopefully someone
will debug and fix this.

In the meanwhile it would be great if you confirmed that 5.17 is also affected.

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