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Brian Behlendorf 53b1d9794e Add logic to try and recover an inode with an invalid mode 
When an inode is detected with invalid mode bits the safe thing to
do is panic the system.  This indicates a problem with the contents
of a dnode and it should never be possible.  This is the default
behavior.

Unfortunately, due to flaws in the system attribute (SA) implementation
(on all platforms) it was possible that ZFS could create a damaged dnode.
This was a rare issue which only impacted dnodes which used a spill
block.  Normally only symlinks and files with ACLs would require a
spill block.  However, if the dataset had the xattr=sa property set
and extended attributes were used this problem could occur.

As of the 0.6.4 tag the root cause of this issue has been fixed.  For
pools which are exhibiting this damage the 'zfs_recover=1' module option
may be set.  This will cause ZFS to interpret the dnode with invalid
mode bits as a normal file.  This may allow the files to be accessed
for recovery purposes.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3548
2015-07-17 15:33:35 -07:00
cmd Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
config Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
contrib Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
etc Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
include Linux 4.2 compat: bdi_setup_and_register() 2015-07-17 09:15:43 -07:00
lib Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
man Illumos 5764 - "zfs send -nv" directs output to stderr 2015-07-14 10:28:32 -07:00
module Add logic to try and recover an inode with an invalid mode 2015-07-17 15:33:35 -07:00
rpm Move dracut directory to contrib 2015-07-09 13:59:37 -07:00
scripts Use truncate instead of fallocate in ziltest.sh 2015-07-13 11:02:59 -07:00
udev Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
.gitignore Ignore *.{deb,rpm,tar.gz} files in the top directory. 2013-04-24 16:18:59 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
AUTHORS Add a missing > to AUTHORS 2014-09-02 14:18:53 -07:00
autogen.sh build: do not call boilerplate ourself 2013-04-02 10:55:20 -07:00
configure.ac Move dracut directory to contrib 2015-07-09 13:59:37 -07:00
copy-builtin Consistent menuconfig name 2012-08-26 13:49:37 -07:00
COPYRIGHT Update ZED copyright boilerplate 2015-05-11 15:07:00 -07:00
DISCLAIMER Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
Makefile.am Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
META Tag zfs-0.6.4 2015-04-08 20:16:45 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
zfs-script-config.sh.in Initial implementation of zed (ZFS Event Daemon) 2014-04-02 13:10:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.markdown

Native ZFS for Linux!

ZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the Illumos community.

ZFS on Linux, which is also known as ZoL, is currently feature complete. It includes fully functional and stable SPA, DMU, ZVOL, and ZPL layers.

Full documentation for installing ZoL on your favorite Linux distribution can be found at: http://zfsonlinux.org