OpenZFS on Linux and FreeBSD

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LOLi c434d8806c Stack overflow when destroying deeply nested clones Destroy operations on deeply nested chains of clones can overflow the stack: Depth Size Location (221 entries) ----- ---- -------- 0) 15664 48 mutex_lock+0x5/0x30 1) 15616 8 mutex_lock+0x5/0x30 ... 26) 13576 72 dsl_dataset_remove_clones_key.isra.4+0x124/0x1e0 [zfs] 27) 13504 72 dsl_dataset_remove_clones_key.isra.4+0x18a/0x1e0 [zfs] 28) 13432 72 dsl_dataset_remove_clones_key.isra.4+0x18a/0x1e0 [zfs] ... 185) 2128 72 dsl_dataset_remove_clones_key.isra.4+0x18a/0x1e0 [zfs] 186) 2056 72 dsl_dataset_remove_clones_key.isra.4+0x18a/0x1e0 [zfs] 187) 1984 72 dsl_dataset_remove_clones_key.isra.4+0x18a/0x1e0 [zfs] 188) 1912 136 dsl_destroy_snapshot_sync_impl+0x4e0/0x1090 [zfs] 189) 1776 16 dsl_destroy_snapshot_check+0x0/0x90 [zfs] ... 218) 304 128 kthread+0xdf/0x100 219) 176 48 ret_from_fork+0x22/0x40 220) 128 128 kthread+0x0/0x100 Fix this issue by converting dsl_dataset_remove_clones_key() from recursive to iterative. Reviewed-by: Paul Zuchowski <pzuchowski@datto.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: loli10K <ezomori.nozomu@gmail.com> Closes #7279 Closes #7810		2018-08-22 11:03:31 -07:00
.github	PR's should provide motivation & context first	2018-07-23 22:08:18 -07:00
cmd	Added metadata/dnode cache info to arc_summary	2018-08-22 09:35:20 -07:00
config	Add support for selecting encryption backend	2018-08-02 11:59:24 -07:00
contrib	pyzfs: add missing libzfs_core functions	2018-08-20 10:11:52 -07:00
etc	Minor documentation, logging, and testing typos	2018-06-07 09:38:39 -07:00
include	Introduce read/write kstats per dataset	2018-08-20 09:52:37 -07:00
lib	Added encryption support for zfs recv -o / -x	2018-08-15 09:48:49 -07:00
man	Introduce read/write kstats per dataset	2018-08-20 09:52:37 -07:00
module	Stack overflow when destroying deeply nested clones	2018-08-22 11:03:31 -07:00
rpm	Add missing zfs-dracut RPM dependencies	2018-07-31 10:17:44 -07:00
scripts	OpenZFS 9330 - stack overflow when creating a deeply nested dataset	2018-07-09 13:02:50 -07:00
tests	Stack overflow when destroying deeply nested clones	2018-08-22 11:03:31 -07:00
udev	Add kernel module auto-loading	2018-03-13 10:45:55 -07:00
.gitignore	Ignore *.o.ur-safe build artifacts	2018-05-13 18:59:02 -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
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
META	Linux compat 4.18: check_disk_size_change()	2018-06-15 15:05:21 -07:00
Makefile.am	make install only works once	2018-05-31 09:19:59 -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
autogen.sh	Cause autogen.sh to fail if autoreconf fails	2018-07-06 09:27:37 -07:00
configure.ac	Use posix format for dist tarballs	2018-08-15 09:52:28 -07:00
copy-builtin	copy-builtin: SPL must be in Kbuild first	2018-06-15 15:16:29 -07:00
zfs.release.in	Move zfs.release generation to configure step	2012-07-12 12:22:51 -07:00

README.md

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.

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.