linux-ext4 - [Bug 219166] ext4 hang when setting echo noop

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Message-ID: <bug-219166-13602-3umHlsK7F6@https.bugzilla.kernel.org/>
Date: Fri, 16 Aug 2024 20:51:06 +0000
From: bugzilla-daemon@...nel.org
To: linux-ext4@...r.kernel.org
Subject: [Bug 219166] ext4 hang when setting echo noop >
 /sys/block/sda/queue/scheduler

https://bugzilla.kernel.org/show_bug.cgi?id=219166

--- Comment #4 from Richard W.M. Jones (rjones@...hat.com) ---
I've got a job running now:

# while true; do echo noop > /sys/block/sda/queue/scheduler 2>/dev/null ; done

and fio doing some random writes on an XFS filesystem on sda1.

Baremetal, kernel 6.11.0-0.rc3.20240814git6b0f8db921ab.32.fc42.x86_64.

I'll leave that going overnight to see what happens.

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