[f2fs-dev] [Bug 215709] New: kernel deadlocks while mounting the image

[f2fs-dev] [Bug 215709] New: kernel deadlocks while mounting the image

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=215709

            Bug ID: 215709
           Summary: kernel deadlocks while mounting the image
           Product: File System
           Version: 2.5
    Kernel Version: 5.15.4
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: f2fs
          Assignee: filesystem_f2fs@kernel-bugs.kernel.org
          Reporter: yanming@tju.edu.cn
        Regression: No

I have created an image with mkfs.f2fs, 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?

I have upload the image to the Google Drive
(https://drive.google.com/file/d/1DBwKP0-MpkD3eHPTluz3KPcxbdZAw06t/view?usp=sharing).
Looking forward to getting a reply :)

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[f2fs-dev] [Bug 215709] kernel deadlocks while mounting the image

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=215709

Chao Yu (chao@kernel.org) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |chao@kernel.org

--- Comment #1 from Chao Yu (chao@kernel.org) ---
Hi, thanks for the report.

I've figured out a patch to fix this, could you please verify with it?

https://lore.kernel.org/linux-f2fs-devel/20220321152211.5656-1-chao@kernel.org/T/#u

Thanks,

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[f2fs-dev] [Bug 215709] kernel deadlocks while mounting the image

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=215709

--- Comment #2 from bughunter (yanming@tju.edu.cn) ---
Thank you for prompt reply! I have tried this patch, and it seems that the bug
has been fixed.

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[f2fs-dev] [Bug 215709] kernel deadlocks while mounting the image

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=215709

Chao Yu (chao@kernel.org) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |CODE_FIX

--- Comment #3 from Chao Yu (chao@kernel.org) ---
Thanks for the test. ;)

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