7090 zfs should improve allocation order and throttle allocations Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Alex Reece <alex@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: Dan Kimmel <dan.kimmel@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Paul Dagnelie <paul.dagnelie@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Sebastien Roy <sebastien.roy@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com>

6314 buffer overflow in dsl_dataset_name Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com> Approved by: Dan McDonald <danmcd@omniti.com>

6736 ZFS per-vdev ZAPs Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: John Kennedy <john.kennedy@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Don Brady <don.brady@intel.com> Reviewed by: Dan McDonald <danmcd@omniti.com> Approved by: Richard Lowe <richlowe@richlowe.net>

4185 add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Saso Kiselkov <saso.kiselkov@nexenta.com> Reviewed by: Richard Lowe <richlowe@richlowe.net> Approved by: Garrett D'Amore <garrett@damore.org>

5818 zfs {ref}compressratio is incorrect with 4k sector size Reviewed by: Alex Reece <alex@delphix.com> Reviewed by: George Wilson <george@delphix.com> Reviewed by: Richard Elling <richard.elling@richardelling.com> Reviewed by: Steven Hartland <killing@multiplay.co.uk> Reviewed by: Don Brady <dev.fs.zfs@gmail.com> Approved by: Albert Lee <trisk@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>

5176 lock contention on godfather zio Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Alex Reece <alex.reece@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Richard Elling <richard.elling@gmail.com> Reviewed by: Bayard Bell <Bayard.Bell@nexenta.com> Approved by: Garrett D'Amore <garrett@damore.org>

4914 zfs on-disk bookmark structure should be named *_phys_t Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: Richard Lowe <richlowe@richlowe.net> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Approved by: Robert Mustacchi <rm@joyent.com>

4757 ZFS embedded-data block pointers ("zero block compression") 4913 zfs release should not be subject to space checks Reviewed by: Adam Leventhal <ahl@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> Reviewed by: Dan McDonald <danmcd@omniti.com> Approved by: Dan McDonald <danmcd@omniti.com>

4370 avoid transmitting holes during zfs send 4371 DMU code clean up 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: Josef 'Jeff' Sipek <jeffpc@josefsipek.net> 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>

3749 zfs event processing should work on R/O root filesystems Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Eric Schrock <eric.schrock@delphix.com> Approved by: Christopher Siden <christopher.siden@delphix.com>

3742 zfs comments need cleaner, more consistent style Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Eric Schrock <eric.schrock@delphix.com> Approved by: Christopher Siden <christopher.siden@delphix.com>

3581 spa_zio_taskq[ZIO_TYPE_FREE][ZIO_TASKQ_ISSUE]->tq_lock is piping hot 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: Gordon Ross <gordon.ross@nexenta.com> Approved by: Richard Lowe <richlowe@richlowe.net>

3537 want pool io kstats Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Eric Schrock <eric.schrock@delphix.com> Reviewed by: Sašo Kiselkov <skiselkov.ml@gmail.com> Reviewed by: Garrett D'Amore <garrett@damore.org> Reviewed by: Brendan Gregg <brendan.gregg@joyent.com> Approved by: Gordon Ross <gwr@nexenta.com>

3246 ZFS I/O deadman thread Reviewed by: Matt Ahrens <matthew.ahrens@delphix.com> Reviewed by: Eric Schrock <eric.schrock@delphix.com> Reviewed by: Christopher Siden <chris.siden@delphix.com> Approved by: Garrett D'Amore <garrett@damore.org>

3090 vdev_reopen() during reguid causes vdev to be treated as corrupt 3102 vdev_uberblock_load() and vdev_validate() may read the wrong label Reviewed by: Matthew Ahrens <mahrens@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>

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>

1693 persistent 'comment' field for a zpool Reviewed by: George Wilson <gwilson@zfsmail.com> Reviewed by: Eric Schrock <eric.schrock@delphix.com> Approved by: Richard Lowe <richlowe@richlowe.net>

1748 desire support for reguid in zfs Reviewed by: George Wilson <gwilson@zfsmail.com> Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com> Reviewed by: Alexander Eremin <alexander.eremin@nexenta.com> Reviewed by: Alexander Stetsenko <ams@nexenta.com> Approved by: Richard Lowe <richlowe@richlowe.net>

1051 zfs should handle imbalanced luns Reviewed by: Eric Schrock <Eric.Schrock@delphix.com> Reviewed by: Matt Ahrens <Matt.Ahrens@delphix.com> Reviewed by: Adam Leventhal <Adam.Leventhal@delphix.com> Reviewed by: Albert Lee <trisk@nexenta.com> Reviewed by: Gordon Ross <gwr@nexenta.com> Approved by: Garrett D'Amore <garrett@nexenta.com>

6733267 Allow a pool to be imported with a missing slog 6950437 missing logzillas should not fault pool when they contain no ZIL data

6937608 ZFS DE should ignore ereports prior to pool import

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

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

6900971 zdb rewind behavior needs to be revisited

PSARC/2009/511 zpool split 5097228 provide 'zpool split' to create new pool by breaking all mirrors 6880831 memory leak in zpool add 6891438 zfs_ioc_userspace_upgrade could reference uninitialised error variable 6891441 zvol_create_minor sets local variable zv but never references it 6891442 spa_import() sets local variable spa but never references it 6895446 vdevs left open after removing slogs or offlining device/file

6881015 ZFS write activity prevents other threads from running in a timely manner 6899867 mstate_thread_onproc_time() doesn't account for runnable time correctly PSARC/2009/615 System Duty Cycle Scheduling Class and ZFS IO Observability

6826241 Sync write IOPS drops dramatically during TXG sync 6869229 zfs should switch to shiny new metaslabs more frequently

6897958 ASSERT in metaslab_class_space_update() with 8+ exabyte pool 6898598 dsl needs to be more aware of dedup space

6897693 deduplication can only go so far

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

PSARC 2009/479 zpool recovery support 6667683 need a way to rollback to an uberblock from a previous txg 6885998 bad ASSERT() in traverse_zil_block()

6846163 ZFS continues to use faulted logzilla, bringing system to a crawl 6872547 ztest LUN expansion test fails 6873635 zdb should be able to open a pool with a failed slog 6873654 system panics when a slog device is offlined 6875236 zdb should be able to dump the spa history

6836743 zfs_ioc_pool_set_props() leaks nvlist if configfile is only property 6883640 need to post autoreplace sysevents on pool open for cache and spare vdevs 6883696 zfs-diagnosis ENA handling is busted

6856634 snv_117 not booting: zfs_parse_bootfs: error2

6848242 zdb -e no longer works as expected

PSARC 2008/353 zpool autoexpand property 6475340 when lun expands, zfs should expand too 6563887 in-place replacement allows for smaller devices 6606879 should be able to grow pool without a reboot or export/import 6844090 zfs should be able to mirror to a smaller disk

6799895 spa_add_spares() needs to be protected by config lock 6826466 want to post sysevents on hot spare activation 6826468 spa 'allowfaulted' needs some work 6826469 kernel support for storing vdev FRU information 6826470 skip posting checksum errors from DTL regions of leaf vdevs 6826471 I/O errors after device remove probe can confuse FMA 6826472 spares should enjoy some of the benefits of cache devices

6792139 recovering from a suspended pool needs some work 6794830 reboot command hangs on a failed zfs pool

6328632 zpool offline is a bit too conservative 6739487 ASSERT: txg <= spa_final_txg due to scrub/export race 6767129 ASSERT: cvd->vdev_isspare, in spa_vdev_detach() 6747698 checksum failures after offline -t / export / import / scrub 6745863 ZFS writes to disk after it has been offlined 6722540 50% slowdown on scrub/resilver with certain vdev configurations 6759999 resilver logic rewrites ditto blocks on both source and destination 6758107 I/O should never suspend during spa_load() 6776548 codereview(1) runs off the page when faced with multi-line comments 6761406 AMD errata 91 workaround doesn't work on 64-bit systems

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

6754011 SPA 3.0: lock breakup, i/o pipeline refactoring, device failure handling 6667208 zfs/zpool commands on failed pool should not hang 6430480 grabbing config lock as writer during I/O load can take excessively long

PSARC 2008/486 Intent log replay failure handling 6707530 log device failure needs some work

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

6721094 Setting certain properties on root pools should not be allowed

6628282 arc_stats.arcstat_l2_writes_sent.value.ui64) == (arc_stats.arcstat_l2_writes_done.value.ui64) 6672464 L2ARC doesn't need startup grace interval 6693918 l2arc_fini() list->list_head.list_next == node, file: ../../common/os/list. c, line: 77 6701480 zpool command hang while add or remove cache from storage pool 6703384 assertion failed: lold->list_next != 0L, file: ../../common/os/list.c, line: 116 6709301 An empty L2ARC cache device is slow to warm up 6710331 L2ARC can hang during heavy error load

6697301 deadlock between ZFS and devfs can hang system 6702485 enc_do_ucode() corrupts memory if image is not aligned 6702487 need to update product name for J4500 6702607 GRUB should allow explicit zfs-bootfs setting 6703082 need to update parsing of J4500 STRING IN data 6703124 fix for 6667023 was overaggressive and unnecessarily confusing 6703353 ZIO_FLAG_SPECULATIVE should not generate ereports 6703845 vdev_disk_read_rootlabel() leaks LDI handle 6703938 canceling an in-place replacement results in lingering '/old' pathname 6704037 autoreplace code should work for faulted devices 6704039 autoreplace code shouldn't use old devid 6704615 spa_import_rootpool() needs to do forced import --HG-- rename : usr/src/lib/scsi/plugins/ses/SUN-ST-J4500/Makefile => usr/src/lib/scsi/plugins/ses/SUN-Storage-J4500/Makefile rename : usr/src/lib/scsi/plugins/ses/SUN-ST-J4500/Makefile.com => usr/src/lib/scsi/plugins/ses/SUN-Storage-J4500/Makefile.com rename : usr/src/lib/scsi/plugins/ses/SUN-ST-J4500/amd64/Makefile => usr/src/lib/scsi/plugins/ses/SUN-Storage-J4500/amd64/Makefile rename : usr/src/lib/scsi/plugins/ses/SUN-ST-J4500/common/loki.c => usr/src/lib/scsi/plugins/ses/SUN-Storage-J4500/common/loki.c rename : usr/src/lib/scsi/plugins/ses/SUN-ST-J4500/i386/Makefile => usr/src/lib/scsi/plugins/ses/SUN-Storage-J4500/i386/Makefile rename : usr/src/lib/scsi/plugins/ses/SUN-ST-J4500/sparc/Makefile => usr/src/lib/scsi/plugins/ses/SUN-Storage-J4500/sparc/Makefile rename : usr/src/lib/scsi/plugins/ses/SUN-ST-J4500/sparcv9/Makefile => usr/src/lib/scsi/plugins/ses/SUN-Storage-J4500/sparcv9/Makefile

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

6354519 stack overflow in zfs due to zio pipeline 6533726 single-threaded checksum & parity calculations limit write bandwidth 6547248 ztest detects a future leak when there is none 6604198 zfs only using single cpu for compression (part II) --HG-- rename : usr/src/uts/common/fs/zfs/rprwlock.c => deleted_files/usr/src/uts/common/fs/zfs/rprwlock.c rename : usr/src/uts/common/fs/zfs/sys/rprwlock.h => deleted_files/usr/src/uts/common/fs/zfs/sys/rprwlock.h

PSARC 2007/618 ZFS L2ARC 6536054 second tier ("external") ARC

PSARC 2007/607 ZFS cachefile property 6620436 zpool import can dump core with multiple '-o' arguments 6620452 zfs should support placing pool configuration in alternate cachefiles

PSARC 2007/567 zpool failmode property 6322646 ZFS should gracefully handle all devices failing (when writing) 6413847 vdev label write failure should be handled more gracefully 6417772 need nicer message on write failure 6417779 ZFS: I/O failure (write on ...) -- need to reallocate writes 6467927 Node gets into a panic loop when devices are fenced off 6565042 ZFS should gracefully handle all devices failing (when reading) 6596239 Stop issuing IOs to a vdev that is going to be removed

PSARC 2007/342 Enhanced ZFS Pool Properties PSARC 2007/482 zpool upgrade -V 6565437 zpool property extensions 6561384 want 'zpool upgrade -V <version>' to upgrade to specific version number 6582755 zfs.h has some incorrect version macros 6595601 libzfs headers declare functions which don't exist 6603938 libzfs is using VERIFY() again 6538984 duplicated messages when get pool properties from an unsupported pool version

6393351 unique_* could be improved 6553348 assertion failed: ab->b_flags & (1 << 3) at line 2572 of arc.c 6582408 ::arc should accept -k/-m/-g to print in kilo/mega/giga-bytes 6582438 should have generic reader-priority rwlock for spa_config locks 6582441 zfs_cmd_t should only be used to pass arguments to/from userland 6582456 property code is overdue for some spring cleaning 6588564 zpl unmount lock should use regular rwlock

PSARC/2006/465 ZFS Delegated Administration PSARC/2006/577 zpool property to disable delegation PSARC/2006/625 Enhancements to zpool history PSARC/2007/228 ZFS delegation amendments PSARC/2007/295 ZFS Delegated Administration Addendum 6280676 restore "owner" property 6349470 investigate non-root restore/backup 6572465 'zpool set bootfs=...' records history as 'zfs set bootfs=...'

PSARC 2007/171 ZFS Separate Intent Log 6339640 Make ZIL use NVRAM when available.

PSARC 2007/083 ZFS bootable datasets 4929890 ZFS Boot support for the x86 platform 6479807 pools need properties 6531774 reserve bits in directory entry for file type

6456888 zpool scrubbing leads to memory exhaustion and system hang

6393525 vdev_reopen() should verify that it's still the same device 6414648 zfs allows overlapping devices to be added 6435943 assertion failed: spare != 0L, file: ../../common/fs/zfs/spa_misc.c 6436000 import of actively spared device returns EBUSY 6478316 nfs/server doesn't respect auto_enable setting 6483675 want a private property to return number of clones 6485728 zpool iostat should flush output periodically 6494072 A device which was set as spare disk is not detach 6497563 zfs double-spared an already-spared disk on reboot 6503724 adding spare that is in use in another pool should be allowed 6505225 zpool(1M) can give misleading error when removing active spare

PSARC 2006/288 zpool history 6343741 want to store a command history on disk 6476196 spa_sync_spares() is missing a nvlist_free()

6433717 offline devices should not be marked persistently unavailble 6436524 importing a bogus pool config can panic system 6436800 ztest failure: spa_vdev_attach() returns EBUSY instead of ENOTSUP

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

6398664 zpool detach: missing argument to error message causes core dump 6398713 don't sync config cache until root is mounted read/write 6396049 spa_sync_labels() should try all devices before giving up 6398380 ASSERT: !vd->vdev_is_dirty, vdev.c:450, when running ziltest 6399272 scrub seems constipated; needs ADVANCE_PRUNE juice

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