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| -rw-r--r-- | open_issues/sync_but_still_unclean_filesystem.mdwn | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/open_issues/sync_but_still_unclean_filesystem.mdwn b/open_issues/sync_but_still_unclean_filesystem.mdwn deleted file mode 100644 index eae98077..00000000 --- a/open_issues/sync_but_still_unclean_filesystem.mdwn +++ /dev/null @@ -1,39 +0,0 @@ -[[!meta copyright="Copyright © 2010, 2011 Free Software Foundation, Inc."]] - -[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable -id="license" text="Permission is granted to copy, distribute and/or modify this -document under the terms of the GNU Free Documentation License, Version 1.2 or -any later version published by the Free Software Foundation; with no Invariant -Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license -is included in the section entitled [[GNU Free Documentation -License|/fdl]]."]]"""]] - -[[!tag open_issue_gnumach open_issue_hurd]] - -Also filed as [[!GNU_Savannah_bug 29292]]. - -\#hurd, 2010, end of May / beginning of June - - [runnign sync, but sill unclean filesystem at next boot] - <slpz> guillem: when libpager syncs an object, it sends an m_o_lock_request - and waits (if the synchronous argument was specified) for a - m_o_lock_completed. But m_o_lock_completed only means that dirty pages - have been sent to the translator, and this one still needs to write them - to the backing storage - <slpz> guillem: there's no problem if sync() returns before actually - writting the changes to disk, but this also happens when shutting down - the translator - <slpz> guillem: in theory, locking mechanisms in libpager should prevent - this from happening by keeping track of write operations, but this seems - to fail in some situations - -It helps a lot to run [[`syncfs --synchronous /`|hurd/syncfs]] before issuing -the `halt` or `reboot` command. This will prevent most of the uncleanliness. -Of course, [[hurd/translator/ext2fs]] is meant to be doing this to-disk -synchronization internally upon translator shutdown, but evidently it doesn't -in all cases. - -Apparently diskfs simply does not set filesystems as read-only: -<http://lists.gnu.org/archive/html/bug-hurd/2011-08/msg00024.html>. - -A patch was applied, and the sync issue does not seem to happen any more. |