Issues

• Allow an enabled but inactive pool feature to be disabled again

  Type: Feature
  openzfs/zfs#19439 · Filter by author tigerblue77 opened on Oct 17, 2026

• RAID-Z expansion stays paused after an offlined child is back if its resilver ends before the pause

  Type: Defect
  openzfs/zfs#19423 · Filter by author tigerblue77 opened on Oct 16, 2026

• RAID-Z expansion: scratch-phase uberblocks are never written on non-debug builds

  Type: Defect
  openzfs/zfs#19422 · Filter by author tigerblue77 opened on Oct 16, 2026

• RAID-Z expansion: a crash right after completion leaves the added capacity unavailable

  Type: Defect
  openzfs/zfs#19420 · Filter by author tigerblue77 opened on Oct 15, 2026

• Empty a top-level vdev by rewriting its blocks, so that zpool remove leaves no trace

  Type: Feature
  openzfs/zfs#19419 · Filter by author tigerblue77 opened on Oct 15, 2026

• Growing a vdev with allocating=off counts its space twice

  Type: Defect
  openzfs/zfs#19417 · Filter by author tigerblue77 opened on Oct 15, 2026

• zfs-2.4.4 kmod fails to load on AL10.3 Beta

  Type: Defect
  openzfs/zfs#19415 · Filter by author stuartthebruce opened on Oct 15, 2026
  3

• CI: fork QEMU reuse misses green results when a tested commit is pushed to a PR branch

  openzfs/zfs#19410 · Filter by author wrouesnel opened on Oct 15, 2026
  8

• Proposal: one-command bug reproducers (bug vs fix) as container images

  openzfs/zfs#19409 · Filter by author wrouesnel opened on Oct 15, 2026
  2

• RAID-Z expansion: a crash just after completion leaves a cachefile that cannot open the pool

  Type: Defect
  openzfs/zfs#19404 · Filter by author tigerblue77 opened on Oct 15, 2026

• zdb -R reads blocks written after a RAID-Z expansion with the pre-expansion layout

  Type: Defect
  openzfs/zfs#19396 · Filter by author tigerblue77 opened on Oct 14, 2026

• Lower-than-expected single-stream sequential write throughput on a four-disk ZFS stripe (OpenZFS 2.3.9)

  Type: Defect
  openzfs/zfs#19392 · Filter by author shivabohemian opened on Oct 14, 2026

• libzfs: parallel mount of encrypted datasets intermittently aborts in fnvlist_lookup_string() — likely race on zfs_props with zfs_refresh_properties()

  openzfs/zfs#19385 · Filter by author tmaier opened on Oct 13, 2026

• Top-level vdevs of different redundancy fill up at different rates

  Type: Defect
  openzfs/zfs#19379 · Filter by author tigerblue77 opened on Oct 13, 2026

• zfs rewrite does not relocate blocks of datasets where nopwrite applies

  Type: Defect
  openzfs/zfs#19372 · Filter by author tigerblue77 opened on Oct 13, 2026

• Writes to a zvol fail with EPERM while it is renamed (Linux)

  Type: Defect
  openzfs/zfs#19371 · Filter by author tigerblue77 opened on Oct 13, 2026

• OpenZFS 2.2.x fails to build on CentOS Stream 9 kernel 5.14.0-756.el9.x86_64 due to incorrect dentry alias compatibility mapping

  Type: Defect
  openzfs/zfs#19369 · Filter by author mohansawant08 opened on Oct 13, 2026
  1

• zfs rewrite -P can leave a concurrent append out of incremental streams

  Type: Defect
  openzfs/zfs#19368 · Filter by author tigerblue77 opened on Oct 13, 2026

• zfs rewrite -P makes a raw incremental replica of an encrypted dataset unreadable

  Type: Defect
  openzfs/zfs#19366 · Filter by author tigerblue77 opened on Oct 13, 2026
  7

• ZFS locks up with zfs client (backup device) running rsync with a NFS filer running ZFS.

  Type: Defect
  openzfs/zfs#19354 · Filter by author chrishaidinyak-source opened on Oct 12, 2026
  1

• Tracking: intermittent ZTS failures on the FreeBSD CI runners (6 PRs)

  Type: Defect
  openzfs/zfs#19341 · Filter by author wrouesnel opened on Oct 11, 2026
  3

• initramfs: -type f (#18686) skips the libcurl.so.4 symlink, libcurl no longer copied into initramfs

  openzfs/zfs#19328 · Filter by author peturingi opened on Oct 11, 2026
  1

• dRAID: documented imbalance ratios don't reflect the layout the kernel uses

  Type: Defect
  openzfs/zfs#19295 · Filter by author denyszhak opened on Oct 10, 2026

• VERIFY(BP_EQUAL(zio->io_bp, &zio->io_bp_orig)) in zio_done (nopwrite path) during txg sync — 2.4.4, recurring every ~1.7 days, stops with zfs_nopwrite_enabled=0

  openzfs/zfs#19294 · Filter by author barrettg opened on Oct 10, 2026

• NULL pointer dereference in zvol_os_set_disk_ro during zfs clone -o volmode=dev -o readonly=off, leaves z_zvol taskq hung (2.4.4)

  openzfs/zfs#19269 · Filter by author jwillmer opened on Oct 8, 2026