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Message-ID: <bug-219300-13602-UsHqyJUA0o@https.bugzilla.kernel.org/>
Date: Sun, 22 Sep 2024 18:58:25 +0000
From: bugzilla-daemon@...nel.org
To: linux-ext4@...r.kernel.org
Subject: [Bug 219300] ext4 corrupts data on a specific pendrive

https://bugzilla.kernel.org/show_bug.cgi?id=219300

Artem S. Tashkinov (aros@....com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Artem S. Tashkinov (aros@....com) ---
> [11844.111565] Buffer I/O error on device sdb1, logical block 7533568 
> EXT4-fs (sdb1): I/O error while writing superblock 

Typically, such errors indicate a storage failure, not a filesystem problem.

I strongly suspect your media is broken or damaged and should not be used to
store important information.

The easiest way to test it would be to use badblocks with a single pass, using
the `-w     Use write-mode test` option.

The defaults for -b and -c are quite low, I'd suggest:

sudo badblocks -b 4096 -c 1000 -w -s -v /dev/sdX

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