From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 93031] New: root becomes read-only at boot due to
journal_async_commit in /etc/fstab
Date: Tue, 10 Feb 2015 07:59:55 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=93031
Bug ID: 93031
Summary: root becomes read-only at boot due to
journal_async_commit in /etc/fstab
Product: File System
Version: 2.5
Kernel Version: 3.18.5
Hardware: x86-64
OS: Linux
Tree: Fedora
Status: NEW
Severity: high
Priority: P1
Component: ext4
Assignee: fs_ext4@kernel-bugs.osdl.org
Reporter: mtall.qld@gmail.com
Regression: No
Booting kernel 3.18.5 with the journal_async_commit option for / in /etc/fstab
causes the root file system to be read-only. kernel 3.18.3 also has this
problem.
entry in /etc/fstab:
UUID=... / ext4 defaults,nodiratime,noatime,journal_async_commit 1 1
Relevant log from dmesg:
EXT4-fs (sdb1): changing journal_checksum during remount not supported
Adding journal_checksum to /etc/fstab doesn't help. Trying to manually remount
root to enable or disable journal_async_commit also doesn't work.
kernel 3.17.x works without problems.
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