Red Hat Bugzilla – Bug 17386
Filesystems that are remounted read-only during shutdown or reboot are not synced.
Last modified: 2014-03-16 22:16:20 EDT
Unmountings of filesystems are done by /etc/rc.d/init.d/halt during
shutdown or reboot. Some filesystems are not unmounted but remounted
read-only, e.g., the root filesystem. Unfortunately that does not imply
that the buffers are flushed to disc.
Suggested solution: Put a sync-command at appropriate place in
I have never had any problem with this until I started using raid1 on the
root-filesystem so that might be crucial for this bug to actually cause
I am unable to reproduce this bug in a certain way. However, sometimes
changes in files close to a reboot are lost.
Version: Redhat linux 6.2, i386, initscript-5.00-1. Other versions or
platforms have not been tested.
After hints from some friends I checked the source code of the kernel and
remount do sync the discs. If there is a bug here, it is not in the
My unability to reproduce the bug makes me suspect that I have made some
mistake. At least I don't expect someone to spend time on this until I can
produce a better bug report. Therefore I classify this as not-a-bug.