[thirdparty/mdadm.git] / ANNOUNCE-3.2.4

Subject:  ANNOUNCE: mdadm 3.2.4 - A tool for managing Soft RAID under Linux

I am pleased to announce the availability of
   mdadm version 3.2.4

It is available at the usual places, now including github:
   countrycode=xx.
   http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
and via git at
   git://github.com/neilbrown/mdadm
   git://neil.brown.name/mdadm
   http://neil.brown.name/git/mdadm

This release is largely a bugfix release for the 3.2 series with many
minor fixes with little or no impact.

"--oneline" log of changes is below.  Some notable ones are:

 - --offroot argument to improve interactions between mdmon and initrd
 - --prefer argument to select which /dev names to display in some
   circumstances.
 - relax restructions on when "--add" will be allowed
 - Fix bug with adding write-intent-bitmap to active array
 - Now defaults to "/run/mdadm" for storing run-time files.

Upgrading is encouraged.

The next mdadm release is expected to be 3.3 with a number of new
features.

NeilBrown 9th May 2012

77b3ac8 monitor: make return from read_and_act more symbolic.
68226a8 monitor: ensure we retry soon when 'remove' fails.
8453f8d fix: Monitor sometimes crashes
90fa1a2 Work around gcc-4.7's strict aliasing checks
0c4304c fix: container creation with --incremental used.
5d1c7cd FIX: External metadata sometimes is not updated
3c20f98 FIX: mdmon check in reshape_container() can cause a problem
59ab9f5 FIX: Typo error in fprint command
9587c37 imsm: load_super_imsm_all function refactoring
ec50f7b imsm: load_imsm_super_all supports loading metadata from the device list
ca9de18 imsm: validate the number of imsm volumes per controller
30602f5 imsm: display fd in error trace when when store_imsm_mpb failes
eb155f6 mdmon: Use getopt_long() to parse command line options
08ca2ad Add --offroot argument to mdadm
da82751 Add --offroot argument to mdmon
a0963a8 Spawn mdmon with --offroot if mdadm was launched with --offroot
f878b24 imsm: fix, the second array need to have the whole available space on devices
d597705 getinfo_super1: Use MaxSector in place of sb->size
6ef8905 super1: make aread/awrite always use an aligned buffer.
de5a472 Remove avail_disks arg from 'enough'.
da8fe5a Assemble: fix --force assemble during reshape.
b10c663 config: fix handing of 'homehost' in AUTO line.
92d49ec FIX: NULL pointer to strdup() can be passed
d2bde6d imsm: FIX: No new missing disks are allowed during general migration
111e9fd FIX: Array is not run when expansion disks are added
bf5cf7c imsm: FIX: imsm_get_allowed_degradation() doesn't count degradation for raid1
50927b1 Fix: Sometimes mdmon throws core dump during reshape
78340e2 Flush mdmon before next reshape step during container operation
e174219 imsm: FIX: Chunk size migration problem
f93346e FIX: use md position to reshape restart
6a75c8c imsm: FIX: use md position to reshape restart
51d83f5 imsm: FIX: Clear migration record when migration switches to next volume.
e1dd332 FIX: restart reshape when reshape process is stopped just between 2 reshapes
1ca90aa FIX: Do not try to (continue) reshape using inactive array
9f1b0f0 config: conf_match should ignore devname when not set.
d669228 Use posix_memalign() for memory used to write bitmaps
178950e FIX: Changes in '0' case for reshape position verification
9200d41 avoid double-free upon "old buggy kernel" sysfs_read failure
4011421 Print error message if failing to write super for 1.x metadata
0011874 Use MDMON_DIR for pid files created in Monitor.c
56d1885 Assemble: don't use O_EXCL until we have checked device content.
b720636 Assemble: support assembling of a RAID0 being reshaped.
c69ffac Manage: allow --re-add to failed array.
52f07f5 Reset bad flag on map update
911cead super1: support superblocks up to 4K.
ad6db3c Create: reduce the verbosity of 'default_layout'.
b2bfdfa super1.c don't keep recalculating bitmap pointer
4122675 Define and use SUPER1_SIZE for allocations
1afa930 init_super1() memset full buffer allocated for superblock
2de0b8a match_metadata_desc1(): Use calloc instead of malloc+memset
3c0bcd4 Use 4K buffer alignment for superblock allocations
308340a Use struct align_fd to cache fd's block size for aligned reads/writes
65ed615 match_metadata_desc0(): Use calloc instead of malloc+memset
de89706 Generalize ROUND_UP() macro and introduce matching ROUND_UP_PTR()
0a2f189 super1.c: use ROUND_UP/ROUND_UP_PTR
654a381 super-intel.c: Use ROUND_UP() instead of manually coding it
42d5dfd __write_init_super_ddf(): Use posix_memalign() instead of static aligned buffer
d4633e0 Examine: fix array size calculation for RAID10.
e62b778 Assemble: improve verbose logging when including old devices.
0073a6e Remove possible crash during RAID6 -> RAID5 reshape.
69fe207 Incremental: fix adding devices with --incremental
bcbb311 Manage: replace 'return 1' with 'goto abort'.
9f58469 Manage: freeze recovery while adding multiple devices.
ae6c05a Create: round off size for RAID1 arrays.
5ca3a90 Grow: print useful error when converting RAID1->RAID5 will fail.
c07d640 Fix tests/05r1-re-add-nosupper
2d762ad Fix the new ROUND_UP macro.
fd324b0 sysfs: fixed sysfs_freeze_array array to work properly with Manage_subdevs.
5551b11 imsm: avoid overflows for disks over 1TB
97f81ee clear hi bits if not used after loading metadata from disk
e03640b simplify calculating array_blocks
29cd082 show 2TB volumes/disks support in --detail-platform
2cc699a check volume size in validate_geometry_imsm_orom
9126b9a check that no disk over 2TB is used to create container when no support
027c374 imsm: set 2tb disk attribute for spare
3556c2f Fix typo: wan -> want
15632a9 parse_size: distinguish between 0 and error.
fbdef49 Bitmap_offset is a signed number
508a7f1 super1: leave more space in front of data by default.
40110b9 Fix two typos in fprintf messages
342460c mdadm man page: fix typo
0e7f69a imsm: display maximum volumes per controller and array
36fd8cc imsm: FIX: Update function imsm_num_data_members() for Raid1/10
7abc987 imsm: FIX: Add volume size expand support to imsm_analyze_change()
f3871fd imsm: Add new metadata update for volume size expansion
54397ed imsm: Execute size change for external metatdata
016e00f FIX: Support metadata changes rollback
fbf3d20 imsm: FIX: Support metadata changes rollback
44f6f18 FIX: Extend size of raid0 array
7e7e9a4 FIX: Respect metadata size limitations
65a9798 FIX: Detect error and rollback metadata
13bcac9 imsm: Add function imsm_get_free_size()
b130333 imsm: Support setting max size for size change operation
c41e00b imsm: FIX: Component size alignment check
58d26a2 FIX: Size change is possible as standalone change only
4aecb54 FIX: Assembled second array is in read only state during reshape
ae2416e FIX: resolve make everything compilation error
480f356 Raid limit of 1024 when scanning for devices.
c2ecf5f Add --prefer option for --detail and --monitor
0a99975 Relax restrictions on when --add is permitted.
7ce0570 imsm: fix: rebuild does not continue after reboot
b51702b fix: correct extending size of raid0 array
34a1395 Fix sign extension of bitmap_offset in super1.c
012a864 Introduce sysfs_set_num_signed() and use it to set bitmap/offset
5d7b407 imsm: fix: thunderdome may drop 2tb attribute
5ffdc2d Update test for "is udev active".
96fd06e Adjust to new standard of /run
974e039 test: don't worry too much about array size.
b0a658f Grow: failing the set the per-device size is not an error.
36614e9 super-intel.c: Don't try to close negative fd
562aa10 super-intel.c: Fix resource leak from opendir()
Commit	Line	Data
f648834d N	1	Subject: ANNOUNCE: mdadm 3.2.4 - A tool for managing Soft RAID under Linux
	2
	3	I am pleased to announce the availability of
	4	mdadm version 3.2.4
	5
	6	It is available at the usual places, now including github:
	7	countrycode=xx.
	8	http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
	9	and via git at
	10	git://github.com/neilbrown/mdadm
	11	git://neil.brown.name/mdadm
	12	http://neil.brown.name/git/mdadm
	13
	14	This release is largely a bugfix release for the 3.2 series with many
	15	minor fixes with little or no impact.
	16
	17	"--oneline" log of changes is below. Some notable ones are:
	18
	19	- --offroot argument to improve interactions between mdmon and initrd
	20	- --prefer argument to select which /dev names to display in some
	21	circumstances.
	22	- relax restructions on when "--add" will be allowed
	23	- Fix bug with adding write-intent-bitmap to active array
	24	- Now defaults to "/run/mdadm" for storing run-time files.
	25
	26	Upgrading is encouraged.
	27
	28	The next mdadm release is expected to be 3.3 with a number of new
	29	features.
	30
	31	NeilBrown 9th May 2012
	32
	33	77b3ac8 monitor: make return from read_and_act more symbolic.
	34	68226a8 monitor: ensure we retry soon when 'remove' fails.
	35	8453f8d fix: Monitor sometimes crashes
	36	90fa1a2 Work around gcc-4.7's strict aliasing checks
	37	0c4304c fix: container creation with --incremental used.
	38	5d1c7cd FIX: External metadata sometimes is not updated
	39	3c20f98 FIX: mdmon check in reshape_container() can cause a problem
	40	59ab9f5 FIX: Typo error in fprint command
	41	9587c37 imsm: load_super_imsm_all function refactoring
	42	ec50f7b imsm: load_imsm_super_all supports loading metadata from the device list
	43	ca9de18 imsm: validate the number of imsm volumes per controller
	44	30602f5 imsm: display fd in error trace when when store_imsm_mpb failes
	45	eb155f6 mdmon: Use getopt_long() to parse command line options
	46	08ca2ad Add --offroot argument to mdadm
	47	da82751 Add --offroot argument to mdmon
	48	a0963a8 Spawn mdmon with --offroot if mdadm was launched with --offroot
	49	f878b24 imsm: fix, the second array need to have the whole available space on devices
	50	d597705 getinfo_super1: Use MaxSector in place of sb->size
	51	6ef8905 super1: make aread/awrite always use an aligned buffer.
	52	de5a472 Remove avail_disks arg from 'enough'.
	53	da8fe5a Assemble: fix --force assemble during reshape.
	54	b10c663 config: fix handing of 'homehost' in AUTO line.
	55	92d49ec FIX: NULL pointer to strdup() can be passed
	56	d2bde6d imsm: FIX: No new missing disks are allowed during general migration
	57	111e9fd FIX: Array is not run when expansion disks are added
	58	bf5cf7c imsm: FIX: imsm_get_allowed_degradation() doesn't count degradation for raid1
	59	50927b1 Fix: Sometimes mdmon throws core dump during reshape
	60	78340e2 Flush mdmon before next reshape step during container operation
	61	e174219 imsm: FIX: Chunk size migration problem
	62	f93346e FIX: use md position to reshape restart
	63	6a75c8c imsm: FIX: use md position to reshape restart
	64	51d83f5 imsm: FIX: Clear migration record when migration switches to next volume.
65	e1dd332 FIX: restart reshape when reshape process is stopped just between 2 reshapes
66	1ca90aa FIX: Do not try to (continue) reshape using inactive array
67	9f1b0f0 config: conf_match should ignore devname when not set.
68	d669228 Use posix_memalign() for memory used to write bitmaps
69	178950e FIX: Changes in '0' case for reshape position verification
70	9200d41 avoid double-free upon "old buggy kernel" sysfs_read failure
71	4011421 Print error message if failing to write super for 1.x metadata
72	0011874 Use MDMON_DIR for pid files created in Monitor.c
73	56d1885 Assemble: don't use O_EXCL until we have checked device content.
74	b720636 Assemble: support assembling of a RAID0 being reshaped.
75	c69ffac Manage: allow --re-add to failed array.
76	52f07f5 Reset bad flag on map update
77	911cead super1: support superblocks up to 4K.
78	ad6db3c Create: reduce the verbosity of 'default_layout'.
79	b2bfdfa super1.c don't keep recalculating bitmap pointer
80	4122675 Define and use SUPER1_SIZE for allocations
81	1afa930 init_super1() memset full buffer allocated for superblock
82	2de0b8a match_metadata_desc1(): Use calloc instead of malloc+memset
83	3c0bcd4 Use 4K buffer alignment for superblock allocations
84	308340a Use struct align_fd to cache fd's block size for aligned reads/writes
85	65ed615 match_metadata_desc0(): Use calloc instead of malloc+memset
86	de89706 Generalize ROUND_UP() macro and introduce matching ROUND_UP_PTR()
87	0a2f189 super1.c: use ROUND_UP/ROUND_UP_PTR
88	654a381 super-intel.c: Use ROUND_UP() instead of manually coding it
89	42d5dfd __write_init_super_ddf(): Use posix_memalign() instead of static aligned buffer
90	d4633e0 Examine: fix array size calculation for RAID10.
91	e62b778 Assemble: improve verbose logging when including old devices.
92	0073a6e Remove possible crash during RAID6 -> RAID5 reshape.
93	69fe207 Incremental: fix adding devices with --incremental
94	bcbb311 Manage: replace 'return 1' with 'goto abort'.
95	9f58469 Manage: freeze recovery while adding multiple devices.
96	ae6c05a Create: round off size for RAID1 arrays.
97	5ca3a90 Grow: print useful error when converting RAID1->RAID5 will fail.
98	c07d640 Fix tests/05r1-re-add-nosupper
99	2d762ad Fix the new ROUND_UP macro.
100	fd324b0 sysfs: fixed sysfs_freeze_array array to work properly with Manage_subdevs.
101	5551b11 imsm: avoid overflows for disks over 1TB
102	97f81ee clear hi bits if not used after loading metadata from disk
103	e03640b simplify calculating array_blocks
104	29cd082 show 2TB volumes/disks support in --detail-platform
105	2cc699a check volume size in validate_geometry_imsm_orom
106	9126b9a check that no disk over 2TB is used to create container when no support
107	027c374 imsm: set 2tb disk attribute for spare
108	3556c2f Fix typo: wan -> want
109	15632a9 parse_size: distinguish between 0 and error.
110	fbdef49 Bitmap_offset is a signed number
111	508a7f1 super1: leave more space in front of data by default.
112	40110b9 Fix two typos in fprintf messages
113	342460c mdadm man page: fix typo
114	0e7f69a imsm: display maximum volumes per controller and array
115	36fd8cc imsm: FIX: Update function imsm_num_data_members() for Raid1/10
116	7abc987 imsm: FIX: Add volume size expand support to imsm_analyze_change()
117	f3871fd imsm: Add new metadata update for volume size expansion
118	54397ed imsm: Execute size change for external metatdata
119	016e00f FIX: Support metadata changes rollback
120	fbf3d20 imsm: FIX: Support metadata changes rollback
121	44f6f18 FIX: Extend size of raid0 array
122	7e7e9a4 FIX: Respect metadata size limitations
123	65a9798 FIX: Detect error and rollback metadata
124	13bcac9 imsm: Add function imsm_get_free_size()
125	b130333 imsm: Support setting max size for size change operation
126	c41e00b imsm: FIX: Component size alignment check
127	58d26a2 FIX: Size change is possible as standalone change only
128	4aecb54 FIX: Assembled second array is in read only state during reshape
129	ae2416e FIX: resolve make everything compilation error
130	480f356 Raid limit of 1024 when scanning for devices.
131	c2ecf5f Add --prefer option for --detail and --monitor
132	0a99975 Relax restrictions on when --add is permitted.
133	7ce0570 imsm: fix: rebuild does not continue after reboot
134	b51702b fix: correct extending size of raid0 array
135	34a1395 Fix sign extension of bitmap_offset in super1.c
136	012a864 Introduce sysfs_set_num_signed() and use it to set bitmap/offset
137	5d7b407 imsm: fix: thunderdome may drop 2tb attribute
138	5ffdc2d Update test for "is udev active".
139	96fd06e Adjust to new standard of /run
140	974e039 test: don't worry too much about array size.
141	b0a658f Grow: failing the set the per-device size is not an error.
142	36614e9 super-intel.c: Don't try to close negative fd
143	562aa10 super-intel.c: Fix resource leak from opendir()
144