7199 dsl_dataset_rollback_sync may try to free already free blocks 7200 no blocks must be born in a txg after a snaphot is created Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Brad Lewis <brad.lewis@delphix.com> Approved by: Gordon Ross <gordon.w.ross@gmail.com>

3821 Race in rollback, zil close, and zil flush Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Dan Kimmel <dan.kimmel@delphix.com> Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com> Reviewed by: Andriy Gapon <avg@FreeBSD.org> Approved by: Richard Lowe <richlowe@richlowe.net>

7254 ztest failed assertion in ztest_dataset_dirobj_verify: dirobjs + 1 == usedobjs Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Steve Gonczi <steve.gonczi@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com>

5027 zfs large block support (add copyright)

5981 Deadlock in dmu_objset_find_dp Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Dan McDonald <danmcd@omniti.com> Approved by: Robert Mustacchi <rm@joyent.com>

5269 zpool import slow Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: George Wilson <george@delphix.com> Reviewed by: Dan McDonald <danmcd@omniti.com> Approved by: Dan McDonald <danmcd@omniti.com>

5497 lock contention on arcs_mtx Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Richard Elling <richard.elling@richardelling.com> Approved by: Dan McDonald <danmcd@omniti.com>

5056 ZFS deadlock on db_mtx and dn_holds Reviewed by: Will Andrews <willa@spectralogic.com> Reviewed by: Matt Ahrens <mahrens@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Dan McDonald <danmcd@omniti.com>

5314 Remove "dbuf phys" db->db_data pointer aliases in ZFS Reviewed by: Andriy Gapon <avg@freebsd.org> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Will Andrews <willa@spectralogic.com> Approved by: Dan McDonald <danmcd@omniti.com>

5027 zfs large block support Reviewed by: Alek Pinchuk <pinchuk.alek@gmail.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com> Reviewed by: Richard Elling <richard.elling@richardelling.com> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Approved by: Dan McDonald <danmcd@omniti.com>

5136 fix write throttle comment in dsl_pool.c Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: Max Grossman <max.grossman@delphix.com> Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net> Reviewed by: Richard Elling <richard.elling@gmail.com> Approved by: Dan McDonald <danmcd@omniti.com>

4958 zdb trips assert on pools with ashift >= 0xe Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Max Grossman <max.grossman@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Approved by: Garrett D'Amore <garrett@damore.org>

4951 ZFS administrative commands should use reserved space, not fail with ENOSPC (fix call) Approved by: Christopher Siden <christopher.siden@delphix.com>

4390 i/o errors when deleting filesystem/zvol can lead to space map corruption Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Dan McDonald <danmcd@omniti.com> Reviewed by: Saso Kiselkov <saso.kiselkov@nexenta.com> Approved by: Dan McDonald <danmcd@omniti.com>

4171 clean up spa_feature_*() interfaces 4172 implement extensible_dataset feature for use by other zpool features Reviewed by: Max Grossman <max.grossman@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com> Approved by: Garrett D'Amore <garrett@damore.org>

4045 zfs write throttle & i/o scheduler performance work Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: Ned Bass <bass6@llnl.gov> Reviewed by: Brendan Gregg <brendan.gregg@joyent.com> Approved by: Robert Mustacchi <rm@joyent.com>

3740 Poor ZFS send / receive performance due to snapshot hold / release processing Reviewed by: Matthew Ahrens <mahrens@delphix.com> Approved by: Christopher Siden <christopher.siden@delphix.com>

3598 want to dtrace when errors are generated in zfs Reviewed by: Dan Kimmel <dan.kimmel@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Approved by: Garrett D'Amore <garrett@damore.org>

3582 zfs_delay() should support a variable resolution 3584 DTrace sdt probes for ZFS txg states Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: Dan McDonald <danmcd@nexenta.com> Reviewed by: Richard Elling <richard.elling@dey-sys.com> Approved by: Garrett D'Amore <garrett@damore.org>

3464 zfs synctask code needs restructuring Reviewed by: Dan Kimmel <dan.kimmel@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Approved by: Garrett D'Amore <garrett@damore.org>

3236 zio nop-write Reviewed by: Matt Ahrens <matthew.ahrens@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Christopher Siden <chris.siden@delphix.com> Approved by: Garrett D'Amore <garrett@damore.org>

3006 VERIFY[S,U,P] and ASSERT[S,U,P] frequently check if first argument is zero Reviewed by Matt Ahrens <matthew.ahrens@delphix.com> Reviewed by George Wilson <george.wilson@delphix.com> Approved by Eric Schrock <eric.schrock@delphix.com>

3104 eliminate empty bpobjs Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Christopher Siden <chris.siden@delphix.com> Reviewed by: Garrett D'Amore <garrett@damore.org> Approved by: Eric Schrock <eric.schrock@delphix.com>

3100 zvol rename fails with EBUSY when dirty 3103 zfs mdb module may get wrong refcount struct Reviewed by: Christopher Siden <chris.siden@delphix.com> Reviewed by: Adam H. Leventhal <ahl@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Garrett D'Amore <garrett@damore.org> Approved by: Eric Schrock <eric.schrock@delphix.com>

3086 unnecessarily setting DS_FLAG_INCONSISTENT on async destroyed datasets Reviewed by: Christopher Siden <chris.siden@delphix.com> Approved by: Eric Schrock <Eric.Schrock@delphix.com>

backout 3006: causes 3046 (panics after mounting root)

3006 VERIFY[S,U,P] and ASSERT[S,U,P] frequently check if first argument is zero Reviewed by: Matt Ahrens <matthew.ahrens@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Garrett D'Amore <garrett@damore.org>

2619 asynchronous destruction of ZFS file systems 2747 SPA versioning with zfs feature flags Reviewed by: Matt Ahrens <mahrens@delphix.com> Reviewed by: George Wilson <gwilson@delphix.com> Reviewed by: Richard Lowe <richlowe@richlowe.net> Reviewed by: Dan Kruchinin <dan.kruchinin@gmail.com> Approved by: Eric Schrock <Eric.Schrock@delphix.com>

1644 add ZFS "clones" property 1645 add ZFS "written" and "written@..." properties 1646 "zfs send" should estimate size of stream 1647 "zfs destroy" should determine space reclaimed by destroying multiple snapshots 1708 adjust size of zpool history data Reviewed by: Richard Lowe <richlowe@richlowe.net> Reviewed by: George Wilson <gwilson@zfsmail.com> Reviewed by: Albert Lee <trisk@opensolaris.org> Approved by: Garrett D'Amore <garret@nexenta.com>

backout 1644/1645/1646/1647/1708: Breaks 'zfs snapshot', boot environments

1644 add ZFS "clones" property 1645 add ZFS "written" and "written@..." properties 1646 "zfs send" should estimate size of stream 1647 "zfs destroy" should determine space reclaimed by destroying multiple snapshots 1708 adjust size of zpool history data Reviewed by: Richard Lowe <richlowe@richlowe.net> Reviewed by: George Wilson <gwilson@zfsmail.com> Approved by: Gordon Ross <gwr@nexenta.com>

6913010 assertion failed: error||lr->lr_length <= zp->z_blksz, file: ../../common/fs/zfs/zfs_vnops.c 6620948 slow progress with stress tests 6478419 Should push all synchronous transactions in zil_commit_writer() 6916723 ZIL: Unnecessary scanning of the intent log tx chain. 6598837 zil_commit() might wait unnecessarily 6535172 zil_sync causing long hold times on zl_lock 6916703 ZIL: race on setting z_last_itx 6579989 zl_lock hold time can still be improved

6494473 ZFS needs a way to slow down resilvering 6743992 scrub/resilver causes systemic slowdown 6936821 scrub/resilver io should not be suspended 6956464 otoro: head panic in zfs:dnode_hold_impl; during system disk zinject testing

6938335 zfs send -R can still miss renamed snapshots 6955879 panic in dmu_objset_stats while running nfs IOs. 6928104 zfs send/rename race can leak snapshot holds 6953835 mem leak in dsl_dataset_user_release_tmp() 6915117 zfs_iter_snapshots() should deal with midstream snapshot renames

6948890 snapshot deletion can induce pathologically long spa_sync() times

6675946 'zpool status' should show the progress of resilvering for individual disk. 6683750 scrub -s have to wait until resilver completed? 6841252 Resilvering not restartable - causing an excess reboot delay 6855073 spa scrub stats (eg %done) are reset on reboot 6891824 7410 NAS head "continually resilvering" following HDD replacement 6899970 scrub/resilver percent complete reporting in zpool status can be overly optimistic 6940889 add interval (count) args to zpool list 6944623 dbuf_read_done() locking performance improvement 6946760 mutex problem in bplist_enqueue() 6391915 RFE: provide interval arg to zpool status to monitor resilvering 6946512 want zfs_send() to pass back debug info 6943992 'zpool scrub' should not restart the existing scrub silently 6878281 zpool should store the time of last scrub/resilver and other zpool status info in pool properties. 6935158 Assertion failed: used <= spa_get_dspace(dd->dd_pool->dp_spa) 6944388 dsl_dataset_snapshot_reserve_space() causes dp_write_limit=max --HG-- rename : usr/src/uts/common/fs/zfs/dsl_scrub.c => usr/src/uts/common/fs/zfs/dsl_scan.c

6716117 ZFS needs native system attribute infrastructure 6516171 zpl symlinks should have their own object type

6505339 dsl_pool_close() needs to call txg_list_destroy(&dp->dp_sync_tasks) to be nice 6569720 zpool import -d <readonly filesystem> <pool> core dumps 6566868 'zinject -c all' should not permit by regular user 6561382 zpl version incompatability needs better error messaging 6909405 concurrent replication actions fail to destroy each others' snapshots 6794306 df.c calls libzfs_init with an argument when none is expected

6918925 txg sync lasts a fraction of zfs_txg_synctime

6904168 change zfs_txg_synctime (etc.) tunables to zfs_txg_synctime_ms

6678033 resilver code should prefetch 6841580 zfs stack overflow when upgrading to userspace accounting 6859446 scrub doesn't pause correctly

6899862 ZFS txg time tunables should be more flexible

6899923 vdev_offline/vdev_add deadlock 6900497 zdb -S could be much faster 6900898 deduped blocks should be scrubbed/resilvered exactly once

6897693 deduplication can only go so far

6896756 assertion failed: 0 == dsl_pool_user_hold(dp, ds->ds_object, htag, &now, tx) 6897005 zfs holds broken on 32-bit i86pc

PSARC 2009/571 ZFS Deduplication Properties 6677093 zfs should have dedup capability

6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT 6891731 zfs_vdev_max_pending should be 10 6891726 ztest_fzap runs too much

6833815 scheduled snapshots deleted per snapshot policy can lead to replication failures

6860996 %temporary clones are not automatically destroyed on error 6863088 zfs panic in dnode_hold_impl from readdir()

PSARC/2009/204 ZFS user/group quotas & space accounting 6501037 want user/group quotas on ZFS 6830813 zfs list -t all fails assertion 6827260 assertion failed in arc_read(): hdr == pbuf->b_hdr 6815592 panic: No such hold X on refcount Y from zfs_znode_move 6759986 zfs list shows temporary %clone when doing online zfs recv

6817339 pool write throughput is improperly calculated

6591646 Hang while trying to enter a txg while holding a txg open 6825232 zil_clean should use task_func_t cast in taskq_dispatch 6827943 zil_clean should dispatch zil_itx_clean with TQ_SLEEP

6809347 looping in dnode_special_close() at an error path of spa_tryimport()

6333409 traversal code should be able to issue multiple reads in parallel 6418042 want traversal in depth-first pre-order for quicker 'zfs send' 6757112 zvol dump code is extra complicated 6725668 want ::zfs_blkstats to show block type stats after scrub 6725675 dmu traverse code has extraneous features 6725680 P2CROSS is confusing to use 6725698 zvol dump device should always be 128k 6729696 sync causes scrub or resilver to pause for up to 30s 6730101 online recv can cause scrub to miss some blocks 6752226 assertion failed in dbuf_verify: db->db.db_size >= dn->dn_datablksz 6577985 panic when zfs send a snapshot with i/o errors 6755042 zdb -Lbc counts block several times in case of checksum errors

6687412 zfs stuck issuing small txg

PSARC 2008/223 Pool root file system properties via zpool(1M) 6647661 "set once" / "create time only" properties can't be set for pool level dataset

6343667 scrub/resilver has to start over when a snapshot is taken 6343693 'zpool status' gives delayed start for 'zpool scrub' 6670746 scrub on degraded pool return the status of 'resilver completed'? 6675685 DTL entries are lost resulting in checksum errors 6706404 get_history_one() can dereference off end of hist_event_table[] 6715414 assertion failed: ds->ds_owner != tag in dsl_dataset_rele() 6716437 ztest gets SEGV in arc_released() 6722838 bfu does not update grub

6707621 write throttle results in excessive delay

6625086 changing cachefile doesn't remove old cache on last user 6633599 need a mechanism to import faulted pools 6646102 hot spares are not activated when opening a pool 6646106 ZFS DE is overly complicated 6646195 ZFS DE leaks pool handles 6646618 want dataset GUIDs as a property in libzfs 6662441 L2ARC FMA support 6687745 zdb -U doesn't work with anything but pool names 6687750 ::spa_vdevs should print out cache devices 6687753 cache devices should support offline/online 6687766 ZFS should post a sysevent when config changes 6688366 bad indentation for 'casesensitivity' property in 'zfs get' help 6689223 spa_create() can leave namespace lock held if property validation fails 6690884 setting zfs_no_write_throttle panics system 6691266 zpool_read_label() needs to use pread64() 6694185 nv_priv_init() doesn't bzero structure completely 6694186 ses_plugin_dlclose is backwards 6697754 ses2 plugin crash when setting invalid property

6429205 each zpool needs to monitor its throughput and throttle heavy writers 6528296 system hangs when swapping to a zvol 6662330 ::zfs_params should look for metaslab_gang_bang instead of zio_gang_bang

6513209 Destroying pools under stress caused a hang in arc_flush 6620864 BAD TRAP panic in vn_invalid() called through znode_pageout_func() 6637030 kernel heap corruption detected during stress

PSARC/2007/574 zfs send -R 6358519 'zfs restore' can't restore full backup into topmost filesystem 6421958 want recursive zfs send ('zfs send -r') 6465969 zfs receive error message could be a little more friendly 6482331 assertion failed: ra.err == 0 (0x10 == 0x0) 6577548 nvlist_next_nvpair() can not iterate recursively 6579048 zfs send -i "" fs@snap can succeed 6580447 "zfs list -t filesystem" slowly iterates over all snapshots 6581508 zfs issues confusing error message when doing an incremental send 6585612 'zfs recv -d' cannot receive the top-level filesystem backups 6589317 create-time permissions not granted on filesystems created by "zfs recv" 6596160 zfs create -p -b 1092 <filesystem> should fail. 6619393 help message for ::dbufs is slightly wrong 6620906 zfs_rename() gives incorrect error message 6621295 dsl_deleg_set_sync() should be broken up

6437750 panic: db->db_buf==0||arc_referenced(db->db_buf), file: dbuf.c,line:1539 6466866 assertion failed: dlen <= zp->z_blksz (0x188b4 <= 0x13200), zfs_vnops.c, line: 884 6512661 unowned mutex panic during stress test 6524889 Hang adding zvol-based devices to a pool or creating a pool from zvols 6531759 zfs_rmdir() can return EEXIST on an empty directory when spotlight is messing with it 6532056 missing dmu_tx_commit() in zfs_write() eventually hangs zfs

6512391 DMU should leverage ZIO dependencies to achieve greater parallelism

6463348 ZFS code could be more portable

6443585 zpool create of poolname > 250 and < 256 characters panics in debug printout

PSARC 2006/388 snapshot -r 6373978 want to take lots of snapshots quickly ('zfs snapshot -r')

PSARC 2006/223 ZFS Hot Spares PSARC 2006/303 ZFS Clone Promotion 6276916 support for "clone swap" 6288488 du reports misleading size on RAID-Z 6393490 libzfs should be a real library 6397148 fbufs debug code should be removed from buf_hash_insert() 6405966 Hot Spare support in ZFS 6409302 passing a non-root vdev via zpool_create() panics system 6415739 assertion failed: !(zio->io_flags & 0x00040) 6416759 ::dbufs does not find bonus buffers anymore 6417978 double parity RAID-Z a.k.a. RAID6 6424554 full block re-writes need not read data in 6425111 detaching an offline device can result in import confusion

6410698 ZFS metadata needs to be more highly replicated (ditto blocks) 6410700 zdb should support reading raw blocks out of storage pool 6410709 ztest: spa config can change before pool export

PSARC 2006/077 zpool clear PSARC 2006/139 FMA for ZFS 6284889 arc should replace the znode cache 6333006 DMU & DSL should not panic upon I/O error 6333092 concurrent reads to a file not scaling with number of readers 6338081 ZFS/FMA phase 1 6338386 need persistent error log 6341326 i/o error causes arc buf hash table corruption 6341639 zfs backup/restore should compute/verify checksum of backup stream 6348002 out of space due to changing properties 6354724 inaccurate error message from zfs restore 6354872 dmu_sync() blows predictive accounting 6355416 zpool scrubbing consumes all memory, system hung 6363995 df should only load libzfs when it encounters a ZFS filesystem 6366320 zfs backup/restore doesn't like signals 6368892 mount -m support needed for legacy mounts 6368902 boot archive fstat support needed for ZFS Mountroot 6369424 BFU complains when bfu'ing a ZFS root filesystem 6374062 mountroot support needed for ZFS 6376356 dirtying dbuf obj=43 lvl=0 blkid=0 but not tx_held 6378391 unused members of dmu_objset_stats_t 6378392 clean up zfs_cmd_t structure 6378685 buf_init should allocate its hash table more carefully 6378976 ziltest should be a first class citizen 6381086 zdb segfaults if there is a spa deferred-free bplist 6381203 deadlock due to i/o while assigning (tc_lock held) 6381209 freed space is not immediately available 6381344 'zpool clear' 6381345 FAULTED devices should really be UNAVAIL 6381346 import should mark devices as persistently unavailable 6383272 recursive mutex_enter() during log replay with zfs root 6386326 origin property is not displayed 6386354 libzfs does too much in its _init section, calls exit(1) 6386624 zpool should not complain about non-existent devices from libdiskmgt 6386910 spa needs to be i/o error hardened 6387735 need a mechanism to inject faults into ZFS 6387736 internal ZFS utilities should be placed in an ON-private package 6389928 libzfs should ship a lint library 6390609 malformed vdev config panics on zpool_create() 6390677 version number checking makes upgrades challenging 6390713 ztest hangs in zil_suspend() 6391873 metadata compression should be turned back on 6392113 ztest sometimes reports leaked blocks because ZIL isn't resilvered 6393004 minor memory leak in unique_insert()

PSARC 2002/240 ZFS 6338653 Integrate ZFS PSARC 2004/652 - DKIOCFLUSH 5096886 Write caching disks need mechanism to flush cache to physical media