linux-ext4 - [Bug 220842] dmesg flooded with ext4 backtraces when underlying USB device chokes

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Message-ID: <bug-220842-13602-sIgBngjars@https.bugzilla.kernel.org/>
Date: Sat, 06 Dec 2025 22:01:13 +0000
From: bugzilla-daemon@...nel.org
To: linux-ext4@...r.kernel.org
Subject: [Bug 220842] dmesg flooded with ext4 backtraces when underlying USB
 device chokes

https://bugzilla.kernel.org/show_bug.cgi?id=220842

Theodore Tso (tytso@....edu) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tytso@....edu

--- Comment #2 from Theodore Tso (tytso@....edu) ---
If the USB block device disappears out from under the file system, there's not
much ext4 can do, in terms of "coping".   We can ratelimit some the debugging
messages printed by ext4_destroy_inode(), but no magic that will allow us to
recover from a failed storage device.

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