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Bug#1063422: [regression 6.1.y] f2fs: invalid zstd compress level: 6

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On 2024/2/20 3:54, Salvatore Bonaccorso wrote:
> Hi,
> 
> On Mon, Feb 19, 2024 at 10:35:13AM +0800, Chao Yu wrote:
>> On 2024/2/9 4:19, Salvatore Bonaccorso wrote:
>>> Hi Jaegeuk Kim, Chao Yu,
>>>
>>> In Debian the following regression was reported after a Dhya updated
>>> to 6.1.76:
>>>
>>> On Wed, Feb 07, 2024 at 10:43:47PM -0500, Dhya wrote:
>>>> Package: src:linux
>>>> Version: 6.1.76-1
>>>> Severity: critical
>>>> Justification: breaks the whole system
>>>>
>>>> Dear Maintainer,
>>>>
>>>> After upgrade to linux-image-6.1.0-18-amd64 6.1.76-1 F2FS filesystem
>>>> fails to mount rw.  Message in the boot journal:
>>>>
>>>>     kernel: F2FS-fs (nvme0n1p6): invalid zstd compress level: 6
>>>>
>>>> There was recently an f2fs patch to the 6.1 kernel tree which might be
>>>> related: https://www.spinics.net/lists/stable-commits/msg329957.html
>>>>
>>>> Was able to recover the system by doing:
>>>>
>>>> sudo mount -o remount,rw,relatime,lazytime,background_gc=on,discard,no_heap,user_xattr,inline_xattr,acl,inline_data,inline_dentry,extent_cache,mode=adaptive,active_logs=6,alloc_mode=default,checkpoint_merge,fsync_mode=posix,compress_algorithm=lz4,compress_log_size=2,compress_mode=fs,atgc,discard_unit=block,memory=normal /dev/nvme0n1p6 /
>>>>
>>>> under the running bad 6.1.0-18-amd64 kernel, then editing
>>>> /etc/default/grub:
>>>>
>>>>     GRUB_DEFAULT="Advanced options for Debian GNU/Linux>Debian GNU/Linux, with Linux 6.1.0-17-amd64"
>>>>
>>>> and running 'update-grub' and rebooting to boot the 6.1.0-17-amd64
>>>> kernel.
>>>
>>> The issue is easily reproducible by:
>>>
>>> # dd if=/dev/zero of=test.img count=100 bs=1M
>>> # mkfs.f2fs -f -O compression,extra_attr ./test.img
>>> # mount -t f2fs -o compress_algorithm=zstd:6,compress_chksum,atgc,gc_merge,lazytime ./test.img /mnt
>>>
>>> resulting in
>>>
>>> [   60.789982] F2FS-fs (loop0): invalid zstd compress level: 6
>>
>> Hi Salvatore,
>>
>> Can you please try below fixes:
>>
>> [PATCH 6.1] f2fs: add helper to check compression level
>> https://lore.kernel.org/linux-f2fs-devel/20240212160530.1017205-1-chao@kernel.org
> 
> Confirmed that this fixes the reported issue as it was reported to us
> in Debian in https://bugs.debian.org/1063422 . Thanks a lot!
> (note just tested with the first commit as it landed in 6.1.78 to
> confirm the immediate regression).
> 
> #regzbot fixed-by: cf3d57ad6ff8b566deba3544b9ad3384781fb604

Hi,

Thank you for confirmation.

Thanks,

> 
> Regards,
> Salvatore

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Bug#1063422: linux-image-6.1.0-18-amd64: F2FS rw mount at boot fails with "invalid zstd compress level: 6" Dhya <dhya@picorealm.net> - 2024-02-08 05:40 +0100
  Bug#1063422: mount options Dhya <dhya@picorealm.net> - 2024-02-08 06:20 +0100
  Bug#1063422: fstab Dhya <dhya@picorealm.net> - 2024-02-08 06:20 +0100
  Bug#1063422: linux-image-6.1.0-18-amd64: F2FS rw mount at boot fails with "invalid zstd compress level: 6" Salvatore Bonaccorso <carnil@debian.org> - 2024-02-08 07:40 +0100
  Bug#1063422: [regression 6.1.y] f2fs: invalid zstd compress level: 6 Salvatore Bonaccorso <carnil@debian.org> - 2024-02-08 21:30 +0100
    Bug#1063422: [regression 6.1.y] f2fs: invalid zstd compress level: 6 Jaegeuk Kim <jaegeuk@kernel.org> - 2024-02-09 03:00 +0100
    Bug#1063422: [regression 6.1.y] f2fs: invalid zstd compress level: 6 Chao Yu <chao@kernel.org> - 2024-02-19 03:50 +0100
      Bug#1063422: [regression 6.1.y] f2fs: invalid zstd compress level: 6 Salvatore Bonaccorso <carnil@debian.org> - 2024-02-19 21:00 +0100
        Bug#1063422: [regression 6.1.y] f2fs: invalid zstd compress level: 6 Chao Yu <chao@kernel.org> - 2024-02-20 03:50 +0100

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