7252 compressed zfs send / receive 7628 create long versions of ZFS send / receive options Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: John Kennedy <john.kennedy@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com> Reviewed by: Sebastien Roy <sebastien.roy@delphix.com> Reviewed by: David Quigley <dpquigl@davequigley.com> Reviewed by: Thomas Caputi <tcaputi@datto.com> Approved by: Dan McDonald <danmcd@omniti.com>

7504 kmem_reap hangs spa_sync and administrative tasks Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Approved by: Dan McDonald <danmcd@omniti.com>

7278 tuning zfs_arc_max does not impact arc_c_min Reviewed by: Dan Kimmel <dan.kimmel@delphix.com> Reviewed by: Paul Dagnelie <paul.dagnelie@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com> Approved by: Dan McDonald <danmcd@omniti.com>

6950 ARC should cache compressed data Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Dan Kimmel <dan.kimmel@delphix.com> Reviewed by: Matt Ahrens <mahrens@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Don Brady <don.brady@intel.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Approved by: Richard Lowe <richlowe@richlowe.net>

7016 arc_available_memory is not 32-bit safe Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Gordon Ross <gordon.ross@nexenta.com>

6513 partially filled holes lose birth time Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Boris Protopopov <bprotopopov@hotmail.com> Approved by: Richard Lowe <richlowe@richlowe.net>

6914 kernel virtual memory fragmentation leads to hang Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: John Kennedy <john.kennedy@delphix.com> Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com> Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com> Approved by: Garrett D'Amore <garrett@damore.org>

6672 arc_reclaim_thread() should use gethrtime() instead of ddi_get_lbolt() 6673 want a macro to convert seconds to nanoseconds and vice-versa Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net> Reviewed by: Robert Mustacchi <rm@joyent.com> Approved by: Dan McDonald <danmcd@omniti.com>

6421 Add missing multilist_destroy calls to arc_fini Reviewed by: Dan Kimmel <dan.kimmel@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Jorgen Lundman <lundman@lundman.net> Approved by: Robert Mustacchi <rm@joyent.com>

6293 ztest failure: error == 28 (0xc == 0x1c) in ztest_tx_assign() Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: Richard Elling <Richard.Elling@RichardElling.com> Approved by: Richard Lowe <richlowe@richlowe.net>

5219 l2arc_write_buffers() may write beyond target_sz Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Saso Kiselkov <skiselkov@gmail.com> Reviewed by: George Wilson <george@delphix.com> Reviewed by: Steven Hartland <steven.hartland@multiplay.co.uk> Reviewed by: Justin Gibbs <gibbs@FreeBSD.org> Approved by: Matthew Ahrens <mahrens@delphix.com>

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>

6220 memleak in l2arc on debug build Reviewed by: Saso Kiselkov <saso.kiselkov@nexenta.com> Reviewed by: Simon Klinkert <simon.klinkert@gmail.com> Reviewed by: George Wilson <george@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com>

6214 zpools going south Reviewed by: Dan McDonald <danmcd@omniti.com> Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com> Reviewed by: George Wilson <george@delphix.com> Reviewed by: Saso Kiselkov <saso.kiselkov@nexenta.com> Approved by: Matthew Ahrens <mahrens@delphix.com>

5987 zfs prefetch code needs work Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Paul Dagnelie <pcd@delphix.com> Approved by: Gordon Ross <gordon.ross@nexenta.com>

6033 arc_adjust() should search MFU lists for oldest buffer when adjusting MFU size Reviewed by: Saso Kiselkov <saso.kiselkov@nexenta.com> Reviewed by: Xin Li <delphij@delphij.net> Reviewed by: Prakash Surya <me@prakashsurya.com> Approved by: Matthew Ahrens <mahrens@delphix.com>

5701 zpool list reports incorrect "alloc" value for cache devices Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: George Wilson <george@delphix.com> Reviewed by: Alek Pinchuk <alek.pinchuk@nexenta.com> Approved by: Dan McDonald <danmcd@omniti.com>

5817 change type of arcs_size from uint64_t to refcount_t Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Paul Dagnelie <paul.dagnelie@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Alex Reece <alex@delphix.com> Reviewed by: Richard Elling <richard.elling@richardelling.com> Approved by: Garrett D'Amore <garrett@damore.org>

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>

5445 Add more visibility via arcstats; specifically arc_state_t stats and differentiate between "data" and "metadata" Reviewed by: Basil Crow <basil.crow@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Bayard Bell <bayard.bell@nexenta.com> Approved by: Robert Mustacchi <rm@joyent.com>

5408 managing ZFS cache devices requires lots of RAM Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Don Brady <dev.fs.zfs@gmail.com> Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com> Approved by: Garrett D'Amore <garrett@damore.org>

5376 arc_kmem_reap_now() should not result in clearing arc_no_grow Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Steven Hartland <killing@multiplay.co.uk> Reviewed by: Richard Elling <richard.elling@richardelling.com> Approved by: Dan McDonald <danmcd@omniti.com>

5369 arc flags should be an enum 5370 consistent arc_buf_hdr_t naming scheme Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Alex Reece <alex.reece@delphix.com> Reviewed by: Sebastien Roy <sebastien.roy@delphix.com> Reviewed by: Richard Elling <richard.elling@richardelling.com> Approved by: Richard Lowe <richlowe@richlowe.net>

5368 ARC should cache more metadata 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@richardelling.com> Approved by: Dan McDonald <danmcd@omniti.com>

5179 Remove unused ZFS ARC functions Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com> Reviewed by: Steve Gonczi <gonczi@comcast.net> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Richard Elling <richard.elling@gmail.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Richard Lowe <richlowe@richlowe.net>

5163 arc should reap range_seg_cache Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Richard Elling <richard.elling@gmail.com> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Approved by: Dan McDonald <danmcd@omniti.com>

5034 ARC's buf_hash_table is too small Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Reviewed by: Richard Elling <richard.elling@gmail.com> Approved by: Gordon Ross <gwr@nexenta.com>

4631 zvol_get_stats triggering too many reads Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Sebastien Roy <sebastien.roy@delphix.com> Reviewed by: Matt Ahrens <mahrens@delphix.com> Approved by: Dan McDonald <danmcd@omniti.com>

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>

4897 Space accounting mismatch in L2ARC/zpool Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Boris Protopopov <bprotopopov@hotmail.com> Approved by: Dan McDonald <danmcd@omniti.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>

3995 Memory leak of compressed buffers in l2arc_write_done Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Garrett D'Amore <garrett@damore.org> Approved by: Garrett D'Amore <garrett@damore.org>

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>

4089 NULL pointer dereference in arc_read() Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Reviewed by: Garrett D'Amore <garrett@damore.org> Approved by: Dan McDonald <danmcd@nexenta.com>

4088 use after free in arc_release() Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Garrett D'Amore <garrett@damore.org> Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com> Approved by: Dan McDonald <danmcd@nexenta.com>

1974 pages_pp_maximum/lotsfree discrepancy leads to mlock() failure Reviewed by: Keith Wesolowski <keith.wesolowski@joyent.com> Reviewed by: Brendan Gregg <brendan.gregg@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>

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>

3741 zfs needs better comments Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Eric Schrock <eric.schrock@delphix.com> Approved by: Christopher Siden <christopher.siden@delphix.com>

3805 arc shouldn't cache freed blocks Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: Richard Elling <richard.elling@dey-sys.com> Reviewed by: Will Andrews <will@firepipe.net> Approved by: Dan McDonald <danmcd@nexenta.com>

3137 L2ARC compression Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Approved by: Dan McDonald <danmcd@nexenta.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>

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>

3561 arc_meta_limit should be exposed via kstats 3116 zpool reguid may log negative guids to internal SPA history Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: Gordon Ross <gordon.ross@nexenta.com> Approved by: Garrett D'Amore <garrett@damore.org>

3522 zfs module should not allow uninitialized variables Reviewed by: Sebastien Roy <seb@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Approved by: Garrett D'Amore <garrett@damore.org>

3498 panic in arc_read(): !refcount_is_zero(&pbuf->b_hdr->b_refcnt) Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Approved by: Richard Lowe <richlowe@richlowe.net>

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>

3145 single-copy arc 3212 ztest: race condition between vdev_online() and spa_vdev_remove() Reviewed by: Matt Ahrens <matthew.ahrens@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Eric Schrock <eric.schrock@delphix.com> Reviewed by: Justin T. Gibbs <gibbs@scsiguy.com> Approved by: Eric Schrock <eric.schrock@delphix.com>

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>

3112 ztest does not honor ZFS_DEBUG 3113 ztest should use watchpoints to protect frozen arc bufs 3114 some leaked nvlists in zfsdev_ioctl 3115 poll(2) returns prematurely in presence of spurious wakeups Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Matt Amdur <Matt.Amdur@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> 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>

2618 arc.c mistypes in the comments Reviewed by: Jason King <jason.brian.king@gmail.com> Reviewed by: Josef Sipek <jeffpc@josefsipek.net> Approved by: Richard Lowe <richlowe@richlowe.net>

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>

1618 zfs causing system to hang in vmem_xalloc() Reviewed by: Eric Schrock <eric.schrock@delphix.com> Reviewed by: Adam Leventhal <ahl@delphix.com> Reviewed by: Matt Ahrens <matt@delphix.com> Reviewed by: Richard Elling <richard.elling@richardelling.com> Reviewed by: Garrett D'Amore <garrett@damore.org> Reviewed by: Steve Gonczi <gonczi@comcast.net> Approved by: Gordon Ross <gwr@nexenta.com>

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>

PSARC 2010/306 Read-only ZFS pools 6720531 ZFS should provide read-only import

6954665 system stuck spinning in arc_evict_ghost()

6950219 large ghost eviction causes high write latency 6953403 arc_adjust might adjust MRU unnecessarily 6951024 arc_adapt can lead to wild arc_p adjustment

6952565 panic[cpu0]/thread=ffffff00202a3c40: Deadlock: cycle in blocking chain

6949730 spurious arc_free() can significantly exacerbate 6948890

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

6935088 elpaso panics: kernel heap corruption detected

6928826 panic: assertion failed: ab->b_buf == NULL, file: ../../common/fs/zfs/arc.c, line: 1738 - nightly

6615402 recursive mutex enter on the hash lock in arc_evict_ghost

6873106 Need a mechanism to share buffers between fs modules

PSARC/2009/396 Tickless Kernel Architecture / lbolt decoupling 6860030 tickless clock requires a clock() decoupled lbolt / lbolt64 Portions contributed by Chad Mynhier <cmynhier@gmail.com>

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

6836714 arc_read_done may try to byteswap undefined data

6876733 sdt:::arc-hit and sdt:::arc-miss provide inconsistent args[0]

6875779 zfs user accounting callbacks can be simplified 6771468 ::blkptr prints incorrectly on 32-bit 6832861 zcmd_alloc_dst_nvlist's default size is too small 6876808 want ::refcount to print refcount_t details

6871680 kstats for ARC evicted bytes by L2ARC state

6861581 ZFS frees in synching context during rollback 6869470 panic from refcount_remove when destroy clone

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

6717022 ZFS DMU needs zero-copy support

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

6790261 NULL pointer dereference in arc_cksum_equal()

6821260 l2arc suffers from sign extension on 32-bit platforms

6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage() 6504953 zfs_getpage() misunderstands VOP_GETPAGE() interface 6702206 ZFS read/writer lock contention throttles sendfile() benchmark 6780491 Zone on a ZFS filesystem has poor fork/exec performance 6747596 assertion failed: DVA_EQUAL(BP_IDENTITY(&zio->io_bp_orig), BP_IDENTITY(zio->io_bp)));

6798384 It can take a village to raise a zio

6798268 missing spa_config_exit() in L2ARC hangs system

6748019 ARC/L2ARC metadata accounting for arc_size 6748023 ARC content kstats 6748030 L2ARC turbo warmup 6488341 ZFS should avoiding growing the ARC into trouble

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

6747934 Some locking variables are not properly initialized or destroyed

backout 6386929/6755389/6758338: causes 6772386

6386929 initial "zfs list" is slow 6755389 Initial run of any zfs command that iterates over datasets can be slow 6758338 zfs list should list all explicitly requested snapshots

6646775 Speed up the dumpifying process for zvols

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

6737207 assertion failed: race between arc_release() and arc_referenced() 6732083 arc_read() panic: rw_exit: lock not held

6687412 zfs stuck issuing small txg

6715111 A removed L2ARC device should show status REMOVED 6724373 removing cache devices from a pool with spares doesn't work 6731223 L2ARC: arc_hdr_destroy(), ASSERT(hdr->b_l2hdr != NULL) 6731256 failed L2ARC read should not return EIO

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

PSARC/2008/483 ZFS clone -o PSARC/2008/484 ZFS snapshot properties 6613766 create-time properties for clones 6701797 want user properties on snapshots

PSARC 2008/393 zfs primarycache and secondarycache properties 6429855 Need a way to tell ZFS that caching is a lost cause 6652525 want to limit L2ARC to only cache particular datasets, and only metadata

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

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

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

6628084 Incorrect error message when trying to upgrade a v10 pool 6629427 zfs:0:arcstats:hdr_size/l2_hdr_size kstats are too large on 32-bit systems

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

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

6584470 zdb needs to initialize the bpl_lock mutex 6583739 libzpool should check for properly initialized mutexes 6548010 unbalanced mutex_init/mutex_destroy issues in zfs 6502263 ZFS needs some more FreeBSD porting love Contributed by Pawel Dawidek 6576827 multiple calls to spa_activate() can end up reinitializing all its mutexes 6576830 certain spa mutexes and condition variables need some love

6453407 rm a file when the root file system is at its quota limit reports ENOSPC 6483887 without direct management, arc ghost lists can run amok 6557767 assertion failed: error == 17 || lr->lr_length <= zp->z_blksz 6577156 zfs_putapage discards pages too easily 6581978 assertion failed: koff <= filesz, file: ../../common/fs/zfs/zfs_vnops.c, line: 2834 6582642 cannot set property while quota exceed or really out of space 6583710 assertion failed: new_state->arcs_size + to_delta >= *size (0x5a4cc00 >= 0x5a50a00)

6578493 arc_meta_limit should be configurable

6542676 ARC needs to track meta-data memory overhead 6544743 state->arcs_size >= state->arcs_lsize (0xe8046200 >= 0xe8066200)

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

6528274 arc_reclaim_needed's zio code has a pair of incorrect assumptions

6523936 BAD TRAP: type=8 (#df Double fault) rp=fec266f8 addr=0 6526874 ARC is using ints instead of uint64s in some places 6527134 'zpool status -v' can report duplicate entries duplicate entries

6520051 segzio's sizing policy needs further optimization

6512391 DMU should leverage ZIO dependencies to achieve greater parallelism

6510807 ARC statistics should be exported via kstat

6505625 large regression with zfs in snv_53

6506748 segzio uses unfeasibly large amount of VA

6505658 target MRU size (arc.p) needs to be adjusted more aggressively

4894692 caching data in heap inflates crash dump 6499454 time to increase size of kmem default allocation caches 6499459 vm should stop checking kvp directly

6463140 zfs recv with a snapshot name that has 2 @@ in a row succeeds 6493146 get_numeric_property() has redundant code 6494638 Panic - buffer modified while frozen! when running zpool_create_005 6499476 some zfs_iter_* users leak memory 6501789 'zfs recv pool/fs@' causes assertion failure in mzap_addent 6503788 memory leak in is_spare() 6503790 memory leak in zpool_get_errlog()

6493923 nfsfind on ZFS filesystem quickly depletes memory in a 1GB system

6490569 verify arc bufs are not modified when they shouldn't be

6478928 buffer recycling causes long arc mutex spins

6476663 bad trap possible when dereferencing b_hdr after buf eviction

6460059 zfs destroy <snapshot> leaves behind kruft 6463788 'zfs recv -d' fails if some ancestors already exist 6464897 assertion failed: "BP_GET_COMPRESS(bp) == compress" zio.c, line:897 6472843 panic when write to zvol snapshot 6475506 panic in dmu_recvbackup due to NULL pointer dereference 6475942 need more assertions in dnode_destroy() 6477102 recvbackup ioctl does not advance file offset 6477103 read-only properties should be passed as nvlist 6477900 want more /etc/system tunables for ZFS performance analysis 6479497 ::abuf_find is broken

6463348 ZFS code could be more portable

6469119 race between arc_buf_clone() and arc_buf_add_ref() results in NULL pointer dereference

6447701 ZFS hangs when iSCSI Target attempts to initialize its backing store 6464310 Stressing trunc can induce file corruption

6413510 zfs: writing to ZFS filesystem slows down fsync() on other files in the same FS 6453172 ztest turns into a sloth due to massive arc_min_prefetch_lifespan

6447377 ZFS prefetch is inconsistant

6416482 filebench oltp workload hangs in zfs 6440499 zil should avoid txg_wait_synced() and use dmu_sync() to issue parallel IOs when fsyncing

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

4034947 anon_swap_adjust() should call kmem_reap() if availrmem is low.

6416794 zfs panics in dnode_reallocate during incremental zfs restore 6425740 assertion failed: new_state != old_state

6398177 zfs: poor nightly build performance in 32-bit mode (high disk activity) 6420920 File truncate produces incorrect log record

6407842 zfs panic when closing a file 6410836 zfs umount hang during ZFS stress testing.

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

6395371 ASSERT in dmu_tx_count_free: blkid + i < dn->dn_phys->dn_nblkptr 6396359 infinite loop due to dangling dbufs (hang on unmount)

6395526 assertion failed: refcount_count(&ab->b_refcnt) == 1 (0x2 == 0x1) 6395628 panic:assertion failed: svp->v_count == 1 (0x2 == 0x1), file: ./common/fs/zfs/zfs_ctldir.c line: 939

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()

6390754 gcc and dnlc don't get along

6350001 ZFS lookup performance still much slower than UFS : help tar : help spec SFS 6383405 ARC needs to purge some DNLC entries when memory is low

6345547 assertion failed: tempreserve < arc.c/4 from zfs_rename 6354299 Disable metadata compression, at least temporarily

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