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Chunwei Chen d3190c5f29 Fix zdb -c traverse stop on damaged objset root 
If a corruption happens to be on a root block of an objset, zdb -c will
not correctly report the error, and it will not traverse the datasets
that come after. This is because traverse_visitbp, which does the
callback and reset error for TRAVERSE_HARD, is skipped when traversing
zil is failed in traverse_impl.

Here's example of what 'zdb -eLcc' command looks like on a pool with
damaged objset root:

== before patch:

Traversing all blocks to verify checksums ...

Error counts:

	errno  count
block traversal size 379392 != alloc 33987072 (unreachable 33607680)

	bp count:             172
	ganged count:           0
	bp logical:       1678336      avg:   9757
	bp physical:       130560      avg:    759     compression:  12.85
	bp allocated:      379392      avg:   2205     compression:   4.42
	bp deduped:             0    ref>1:      0   deduplication:   1.00
	SPA allocated:   33987072     used:  0.80%

	additional, non-pointer bps of type 0:         71
	Dittoed blocks on same vdev: 101

== after patch:

Traversing all blocks to verify checksums ...

zdb_blkptr_cb: Got error 52 reading <54, 0, -1, 0>  -- skipping

Error counts:

	errno  count
	   52  1
block traversal size 33963520 != alloc 33987072 (unreachable 23552)

	bp count:             447
	ganged count:           0
	bp logical:      36093440      avg:  80745
	bp physical:     33699840      avg:  75391     compression:   1.07
	bp allocated:    33963520      avg:  75981     compression:   1.06
	bp deduped:             0    ref>1:      0   deduplication:   1.00
	SPA allocated:   33987072     used:  0.80%

	additional, non-pointer bps of type 0:         76
	Dittoed blocks on same vdev: 115

==

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: loli10K <ezomori.nozomu@gmail.com>
Signed-off-by: Chunwei Chen <david.chen@nutanix.com>
Closes #7099
2018-02-09 10:05:25 -08:00
.github Reduce codecov PR comments 2018-01-09 11:15:55 -08:00
cmd OpenZFS 8677 - Open-Context Channel Programs 2018-02-08 16:05:57 -08:00
config Linux 4.16 compat: inode_set_iversion() 2018-02-08 21:25:19 -08:00
contrib OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
etc OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
include Linux 4.11 compat: avoid refcount_t name conflict 2018-02-08 21:25:51 -08:00
lib OpenZFS 8677 - Open-Context Channel Programs 2018-02-08 16:05:57 -08:00
man OpenZFS 8677 - Open-Context Channel Programs 2018-02-08 16:05:57 -08:00
module Fix zdb -c traverse stop on damaged objset root 2018-02-09 10:05:25 -08:00
rpm Fix systemd_ RPM macros usage on Debian-based distributions 2018-02-02 13:50:42 -08:00
scripts OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
tests OpenZFS 8965 - zfs_acl_ls_001_pos fails due to no longer supported grep regex 2018-02-08 21:29:17 -08:00
udev Fix spelling 2017-01-03 11:31:18 -06:00
.gitignore Add configure option to enable gcov analysis 2017-09-15 10:24:13 -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 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 OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
copy-builtin Fix copy-builtin to work with ASAN patch 2018-01-12 09:39:36 -08:00
COPYRIGHT Encryption patch follow-up 2017-10-11 16:54:48 -04:00
DISCLAIMER Fix minor typos and update marketing copy. 2013-03-21 12:51:06 -07:00
Makefile.am Verify ZFS Test Suite scripts executability 2018-02-07 12:43:24 -08:00
META Tag zfs-0.7.0 2017-07-26 10:13:25 -07:00
OPENSOLARIS.LICENSE Add CDDL license file 2008-12-01 14:49:34 -08:00
README.markdown Add scan.coverity.com badge to README 2017-10-30 16:21:24 -07:00
TEST Refresh TEST file to include new variables 2017-11-08 11:09:30 -08:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.markdown

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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.

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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.