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Don Brady 28c91ab66d Tag ABD pages for exclusion in kernel crash dumps 
Tag the ABD data pages so that they can be identified for exclusion 
from kernel crash dumps. Eliminating the zfs file data allows for 
significantly smaller crash dump files. Note that ZFS in illumos has 
always excluded the zfs data pages from a kernel crash dump.

This change tags ARC scatter data pages so they can be identified from 
the makedumpfile(8) command. That command is used to create smaller 
dump files by ignoring some memory regions and using compression. It 
already filters file data from the VFS page cache and will now be able 
to exclude ZFS file data pages from the dump file.

A corresponding change to makeumpfile(8) is required to identify ZFS 
data pages.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #8899
2019-08-28 10:44:46 -07:00
.github Update CONTRIBUTING to point users to IRC as well as mailing list 2019-03-13 11:57:57 -07:00
cmd Fix automake program name transformations 2019-08-20 17:46:40 -04:00
config Minor style cleanup 2019-07-16 17:22:31 -07:00
contrib Fix Plymouth passphrase prompt in initramfs script 2019-08-27 13:44:02 -07:00
etc Restore :: in Makefile.am 2019-08-26 11:48:31 -07:00
include Fix zil replay panic when TX_REMOVE followed by TX_CREATE 2019-08-28 10:42:02 -07:00
lib Fix device expansion when VM is powered off 2019-08-13 21:18:53 -06:00
man Cap metaslab memory usage 2019-08-16 09:08:21 -06:00
module Tag ABD pages for exclusion in kernel crash dumps 2019-08-28 10:44:46 -07:00
rpm initramfs: fixes for (debian) initramfs 2019-08-16 09:02:32 -06:00
scripts Split argument list, satisfy shellcheck SC2086 2019-08-25 18:30:39 -07:00
tests Fix zil replay panic when TX_REMOVE followed by TX_CREATE 2019-08-28 10:42:02 -07:00
udev Restore :: in Makefile.am 2019-08-26 11:48:31 -07:00
.gitignore Linux 5.3 compat: Makefile subdir-m no longer supported 2019-08-19 15:22:52 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
.travis.yml Add .travis.yml 2017-11-13 09:18:18 -08:00
AUTHORS Update build system and packaging 2018-05-29 16:00:33 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
CODE_OF_CONDUCT.md Add CODE_OF_CONDUCT.md 2019-04-30 10:58:45 -07:00
configure.ac Add channel program for property based snapshots 2019-07-30 16:02:19 -07:00
copy-builtin Allow copy-builtin to work with modified sources 2018-10-17 12:06:05 -07:00
COPYRIGHT Update build system and packaging 2018-05-29 16:00:33 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am Restore :: in Makefile.am 2019-08-26 11:48:31 -07:00
META Tag 0.8.0 2019-05-21 11:11:41 -07:00
NEWS Add NEWS file 2018-09-18 12:03:47 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md Explicitly state supported Linux versions 2018-05-30 20:11:19 -07:00
TEST Update build system and packaging 2018-05-29 16:00:33 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

img

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

codecov coverity

Official Resources

Installation

Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.

Contribute & Develop

We have a separate document with contribution guidelines.

Release

ZFS on Linux is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197

Supported Kernels

  • The META file contains the officially recognized supported kernel versions.