Commit Graph

10218 Commits

Author SHA1 Message Date
Brian Behlendorf
c722bf8812
Add interface to interface spa_get_worst_case_min_alloc() function
Provide an interface to retrieve the lowest and highest minimum
allocation size for the normal allocation class.  This can be used
by external consumers of the DMU to estimate potential wasted
capacity when setting the recordsize for an object.

The new "min_alloc" and "max_alloc" keys are added to the pool
configuration and used by default_volblocksize() to warn when
an ineffecient block size is requested.  For older kmods which
don't yet include the new keys fallback to the previous logic.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #17758
2025-09-25 09:35:35 -07:00
Brian Behlendorf
0e1a53a8c0
Fix 'zpool add' safety check corner cases
Three cases were discovered where 'zpool add' would fail to
warn when adding vdevs to a pool with a mismatched replication
level.  These are:

  1. When a pool contains mixed file and disk vdevs.
  2. When a pool contains an active dRAID distributed spare
  3. When a pool contains an active hot spare

The lack of warnings are caused by get_replication() assessing
the current pool configuration an inconsistent and disabling
the mismatched replication check for the new pool configuration
after 'zpool add'.  This change updates get_replication() to
be slightly more tolerant in the non-fatal case.

The zpool_add_010_pos.ksh test case was split in to separate
tests: zpool_add_warn_create.ksh, pool_add_warn_degraded.ksh,
and zpool_add_warn_removal.  These test were extended to
include coverage for dRAID pools and the three scenarios
described above.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #17780
2025-09-25 09:32:59 -07:00
Brian Behlendorf
3e9347c9f7
ZTS: update upgrade_readonly_pool.ksh
Modify the test case to use the `zfs mount` command instead
of directly calling the mount command, create a dedicated dataset,
and use the default mount point.  These changes are intended to
preserve the intent of the original test case and resolve some
spurious mount failures which have been observed by the CI.

Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #17785
2025-09-25 09:31:10 -07:00
jozzsi
b2196fbedf
contrib: dracut: install dependent kernel modules
Eliminates the need for the following workaround

> Add other drivers to dracut:

```
if grep mpt3sas /proc/modules; then
  echo 'force_drivers+=" mpt3sas "'  >> /etc/dracut.conf.d/zfs.conf
fi
if grep virtio_blk /proc/modules; then
  echo 'filesystems+=" virtio_blk "' >> /etc/dracut.conf.d/fs.conf
fi
```

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Jo Zzsi <jozzsicsataban@gmail.com>
Closes #17762
2025-09-23 16:58:38 -07:00
Alexander Motin
ea37c30fcb
zdb: Fix asize overflow in verify_livelist_allocs()
Spacemap entry might be too big to fit into a block pointer ashift.
We hit an assertion trying to run `zdb -bvy` on a large pool.  But
it seems the code does not really need size there, since we only
need to search for a range of offsets, so setting it to zero should
just make btree return position just before the first entry.  I
suspect the previous code could actually miss the first entry
due to this if its size was smaller.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com>
Closes #17764
2025-09-23 16:09:37 -07:00
trick2011
876f705cc4
Use "vdev" instead of "devices" when referring to vdevs
Update documentation to use the correct terminology.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: trick2011 <trick2011@users.noreply.github.com>
Closes #17734
Closes #17755
2025-09-23 16:08:07 -07:00
Tony Hutter
11787965e0
ZTS: Fix stale symlinks with zfs-helpers.sh
zfs-helpers.sh is a utility script that sets up udev symlinks so you
can run ZTS from a local ZFS git workspace.  However, it doesn't check
that the udev symlinks point to the current workspace.  They may point
to an old workspace that has been deleted.  This means the udev rules
never get executed, which in turn causes the zvol tests to fail.

This commit removes old symlinks that do not point to the current
ZFS workspace.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #17766
2025-09-23 12:58:14 -07:00
jozzsi
6ba51da93b
contrib: dracut: always include zfs kernel module
This commit fixes the issue and includes the zfs kernel
module even when dracut is used in hostonly mode.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Jo Zzsi <jozzsicsataban@gmail.com>
Closes #17754
2025-09-18 16:56:45 -07:00
Alan Somers
545d66204d
Fix a printf format specifier on FreeBSD/i386
This is breaking the build on FreeBSD/i386.  Originally committed
downstream as https://github.com/freebsd/freebsd-src/commit/2d76470b701

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by:	Alan Somers <asomers@gmail.com>
Sponsored by:	ConnectWise
Closes #17705
2025-09-17 16:32:29 -07:00
Alan Somers
3387d34093
Fix atomic-alignment warnings in libspl on FreeBSD/i386
On i386, Clang complains about misaligned atomic operations.  Silence
these warnings to fix the build on FreeBSD/i386.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:	Alan Somers <asomers@gmail.com>
Sponsored by:	ConnectWise
Closes #17708
2025-09-17 16:31:27 -07:00
Rob Norris
ab8cc63c77 linux/super: add tunable to request immediate reclaim of unused dentries
Traditionally, unused dentries would be cached in the dentry cache until
the associated entry is no longer on disk. The cached dentry continues
to hold an inode reference, causing the inode to be pinned (see previous
commit).

Here we implement the dentry op d_delete, which is roughly analogous to
the drop_inode superblock op, and add a zfs_delete_dentry tunable to
control its behaviour. By default it continues the traditional
behaviour, but when the tunable is enabled, we signal that an unused
dentry should be freed immediately, releasing its inode reference, and
so allowing that inode to be deleted if no longer in use.

Sponsored-by: Klara, Inc.
Sponsored-by: Fastmail Pty Ltd
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #17746
2025-09-17 08:16:32 -07:00
Rob Norris
ab93b4b70e linux/super: add tunable to request immediate reclaim of unused inodes
Traditionally, unused inodes would be held on the superblock inode cache
until the associated on-disk file is removed or the kernel requests
reclaim.  On filesystems with millions of rarely-used files, this can be
a lot of unusable memory.

Here we implement the superblock drop_inode method, and add a
zfs_delete_inode tunable to control its behaviour. By default it
continues the traditional behaviour, but when the tunable is enabled, we
signal that the inode should be deleted immediately when the last
reference is dropped, rather than cached. This releases the associated
data to the dbuf cache and ARC, allowing them to be reclaimed normally.

Sponsored-by: Klara, Inc.
Sponsored-by: Fastmail Pty Ltd
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #17746
2025-09-17 08:15:56 -07:00
buzzingwires
ffe93aee0a Add typesets to zhack label repair test scripts
As a quality assurance measure, `typeset` is added to local variable
declarations to actually enforce their intended scope.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: buzzingwires <buzzingwires@outlook.com>
Closes #17732
2025-09-17 08:13:24 -07:00
buzzingwires
1d2d812986 Refactor zhack label repair and fix -c regression on nonzero TXG
This commit fixes a likely regression introduced by 64db435 where the
checksum repair functionality (`-c` or default behavior) will perform
checks and access data associated with the newer undetach (`-u`)
functionality, resulting in a failure when an uberblock's TXG is not 0
as required by `-u` but not `-c`

Additionally, code is refactored for better separation of tasks.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: buzzingwires <buzzingwires@outlook.com>
Closes #17732
2025-09-17 08:13:06 -07:00
Rob Norris
d36684201f man: add silent rules for mancheck
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #17747
2025-09-17 08:10:32 -07:00
Rob Norris
45ac6045cc mancheck: allow single files
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #17747
2025-09-17 08:10:28 -07:00
Rob Norris
faf2db3435 Shellcheck.am: add silent rules for shellcheck and checkbashisms
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #17747
2025-09-17 08:10:08 -07:00
Alexander Motin
d147ed7d26
CI: Switch FreeBSD 15 to 15.0-ALPHA2
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com>
Closes #17749
2025-09-15 12:15:31 -07:00
Igor Ostapenko
58b84289e8
Fix txg_log_time ZAP key typo
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Allan Jude <allan@klarasystems.com>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Igor Ostapenko <igor.ostapenko@klarasystems.com>
Sponsored-by: Klara, Inc.
Closes #17748
2025-09-15 10:43:43 -07:00
Kyle Evans
5c46baa1ce
zfsprops(7): attempt to clarify the keylocation description
The current description is somewhat difficult to parse through, and in
some cases is a little unclear as to the behavior.

Split it into a paragraphs based on the three distinct behaviors you
may get: prompt, file URL, HTTP(S) URL.  The descriptions of the file
and HTTP(s) behavior seems fine, but prompt is a little vague- expand
on it and make it clear that the behavior is actively based on whether
the inquisitor of key-data is provided with a tty for stdin or not.

Also clarify *why* one shouldn't "place keys which should be kept secret
on the command line" and note that you *have* to supply the key via
stdin if it's a raw key, just to be sure.

Reviewed-by: Allan Jude <allan@klarasystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Closes #17742
2025-09-15 10:26:17 -07:00
Brian Behlendorf
f330b463de
ZTS: default to random data in fill_fs
Update the fill_fs helper function to request a random fill pattern
when the "data" argument isn't specified.  This ensures the default
behavior is to perform a more realistic fill of incompressible blocks.

Additionally, update a few test cases to specify a random fill.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #17739
2025-09-15 09:37:33 -07:00
Brian Behlendorf
4b764fb01a
ZTS: Fix zfs_send_delegation_user test
Correct the path in the common.run file.  The zfs_send_delegation_user
test is installed under cli_user not cli_root.

Reviewed-by: Allan Jude <allan@klarasystems.com>
Reviewed-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #17740
2025-09-15 09:30:57 -07:00
Rob Norris
f319ff3570
vdev_disk_close: take disk write lock before destroying it
Many IO operations are submitted to the kernel async, and so the zio can
complete and followup actions before the submission call returns. If one
of the followup actions closes the disk (eg during pool create/import),
the initiator may be left holding a lock on the disk at destruction.

Instead, take the write lock before finishing up and decoupling the disk
state from the vdev proper. The caller will hold until all IO is
submitted and locks released.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #17719
2025-09-15 09:12:24 -07:00
Alexander Motin
3f4312a0a4
Fix two infinite loops if dmu_prefetch_max set to zero
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com>
Closes #17692
Closes #17729
2025-09-13 12:58:48 -04:00
Paul Dagnelie
9b772f328b
Fix time database update calculations
The time database update math assumed that the timestamps were in
nanoseconds, but at some point in the development or review process they
changed to seconds. This PR fixes the math to use seconds instead.
    
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Closes #17735
2025-09-12 16:33:36 -07:00
Brian Behlendorf
455c36156c
ZTS: refreserv/refreserv_raidz improvements
Several small changes intended to make this test reliable.

- Leave the default compression enabled for the pool and switch
  to using /dev/urandom as the data source.  Functionally this
  shouldn't impact the test but it's preferable to test with
  the pool defaults when possible.

- Verify the device is created and removed as required.  Switch
  to a unique volume name for a more clarity in the logs.

- Use the ZVOL_DEVDIR to specify the device path.

- Speed up the test by creating the pool with an ashift=12 and
  testing 4K, 8K, 128K volblocksizes.

Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #17725
2025-09-12 11:08:53 -07:00
Alexander Motin
bc8bcfc71a
Fix type in dbrrd_closest()
For ABS() to work, the argument must be signed, but rrdd_time is
uint64_t.  Clang noticed it.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Mariusz Zaborski <mariusz.zaborski@klarasystems.com>
Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com>
Fixes #16853
Closes #17733
2025-09-12 11:05:38 -07:00
Alexander Motin
cb5f9aa582
FreeBSD: Satisfy ASSERT_VOP_IN_SEQC()
zfs_aclset_common() might be called for newly created or not even
created vnodes, that triggers assertions on newer FreeBSD versions
with DEBUG_VFS_LOCKS included into INVARIANTS.  In the first case
make sure to call vn_seqc_write_begin()/_end(), in the second just
skip the assertion.

The similar has to be done for project management IOCTL and file-
bases extended attributes, since those are not going through VFS.

Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com>
Closes #17722
2025-09-12 13:29:27 -04:00
Paul Dagnelie
35f47cb4f4
Make new zhack test a little more reliable
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Closes #17728
2025-09-12 10:07:24 -07:00
Chunwei Chen
37cd30f714
Fix ddle memleak in ddt_log_load
In ddt_log_load(), when removing dup entry from flushing tree, it doesn't
free the entry causing memleak.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Chunwei Chen <david.chen@nutanix.com>
Co-authored-by: Chunwei Chen <david.chen@nutanix.com>
Closes #17657
Closes #17730
2025-09-12 10:05:06 -07:00
JT Pennington
955fbc5ade Add send:encrypted test
Create tests for the new send:encrypted permission

Sponsored-by: Klara, Inc.
Sponsored-by: Karakun AG
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: JT Pennington <jt.pennington@klarasystems.com>
Closes #17543
2025-09-12 09:53:54 -07:00
Allan Jude
7b1cc9eb61 ZFS allow send:encrypted
A new `zfs allow` permissions that ONLY allows sending replication
streams in raw (encrypted) mode, so encrypted data will not be
decrypted as part of the replication process.

Sponsored-by: Klara, Inc.
Sponsored-by: Karakun AG
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Co-authored-by: JT Pennington <jt.pennington@klarasystems.com>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Closes #17543
2025-09-12 09:53:31 -07:00
Tony Hutter
654f2dcb42
zed: Add synchronous zedlets
Historically, ZED has blindly spawned off zedlets in parallel and never
worried about their completion order.  This means that you can
potentially have zedlets for event number 2 starting before zedlets for
event number 1 had finished.  Most of the time this is fine, and it
actually helps a lot when the system is getting spammed with hundreds
of events.

However, there are times when you want your zedlets to be executed
in sequence with the event ID.  That is where synchronous zedlets
come in.

ZED will wait for all previously spawned zedlets to finish before
running a synchronous zedlet.  Synchronous zedlets are guaranteed to be
the only zedlet running.  No other zedlets may run in parallel with a
synchronous zedlet.  Users should be careful to only use synchronous
zedlets when needed, since they decrease parallelism.

To make a zedlet synchronous, simply add a "-sync-" immediately
following the event name in the zedlet's file name:

	EVENT_NAME-sync-ZEDLETNAME.sh

For example, if you wanted a synchronous statechange script:

	statechange-sync-myzedlet.sh

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #17335
2025-09-11 11:34:07 -07:00
Brian Behlendorf
bc0b5318aa
Prevent scrubbing a read-only pool
While it would be nice to be able to scrub a pool imported read-only
this will currently trip an ASSERT.  Before we can support this there
are some designs challenges which need to be thought through first.

For starters, a read-only import skips reading certain information 
from disk which it knows won't be needed, such as the space maps.
Furthermore, the scrub process expects to be checkpoint it's progress, 
update the on disk error log, and issue repair IO.  None of which 
would be possible when the pool is imported read-only.  

Each of these wrinkles can certainly be handled, but that will take 
some signifcant work.  In the meanwhile we disable the 'zpool scrub' 
command when the pool is imported read-only.

Reviewed-by: Alan Somers <asomers@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #17527
Closes #17717
2025-09-11 10:58:46 -07:00
Paul Dagnelie
d64711c202 Detect a slow raidz child during reads
A single slow responding disk can affect the overall read
performance of a raidz group.  When a raidz child disk is
determined to be a persistent slow outlier, then have it
sit out during reads for a period of time. The raidz group
can use parity to reconstruct the data that was skipped.

Each time a slow disk is placed into a sit out period, its
`vdev_stat.vs_slow_ios count` is incremented and a zevent
class `ereport.fs.zfs.delay` is posted.

The length of the sit out period can be changed using the
`raid_read_sit_out_secs` module parameter.  Setting it to
zero disables slow outlier detection.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Contributions-by: Don Brady <don.brady@klarasystems.com>
Contributions-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #17227
2025-09-10 15:25:03 -07:00
Paul Dagnelie
0620c979a5 Remove RAIDZ reconstruct flags from debug defaults
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Closes #17227
2025-09-10 15:24:50 -07:00
Tony Hutter
7f7c58389e
ZTS: Print warning if running ZTS user_run test locally
Print a warning if you're attempting to run a ZTS test that calls
'user_run', and the ephemeral user doesn't have permissions to
access the test binaries.

This can happen if you're running ZTS from a local git repo.  In
that case the test user (say, 'testuser1') may need access to the
ZTS binaries in:

/home/<your_username>/zfs/tests/zfs-tests/bin/

... but 'testuser1' doesn't have permission to enter your home dir:

/home/<your_username>

The warning will help alert users to what is going on.  This will
not be an issue when ZTS is actually installed on the system
(via 'make install' or from packages).

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #17721
2025-09-10 14:55:58 -07:00
Alan Somers
cd6db758f3
Fix the build of crypto_test on LP32 architectures
test->id is a uint64_t, not a long.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by:	Alan Somers <asomers@gmail.com>
Sponsored by:	ConnectWise
Closes #17707
2025-09-10 11:27:39 -07:00
Paul Dagnelie
bc4aac0395 Enable zhack to work properly with 4k sector size disks
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Closes #17576
2025-09-10 11:13:55 -07:00
Paul Dagnelie
8f15d2e4d5 Add allocation profile export and zhack subcommand for import
When attempting to debug performance problems on large systems, one of
the major factors that affect performance is free space
fragmentation. This heavily affects the allocation process, which is an
area of active development in ZFS. Unfortunately, fragmenting a large
pool for testing purposes is time consuming; it usually involves filling
the pool and then repeatedly overwriting data until the free space
becomes fragmented, which can take many hours. And even if the time is
available, artificial workloads rarely generate the same fragmentation
patterns as the natural workloads they're attempting to mimic.

This patch has two parts. First, in zdb, we add the ability to export
the full allocation map of the pool. It iterates over each vdev,
printing every allocated segment in the ms_allocatable range tree. This
can be done while the pool is online, though in that case the allocation
map may actually be from several different TXGs as new ones are loaded
on demand.

The second is a new subcommand for zhack, zhack metaslab leak (and its
supporting kernel changes). This is a zhack subcommand that imports a
pool and then modified the range trees of the metaslabs, allowing the
sync process to write them out normall. It does not currently store
those allocations anywhere to make them reversible, and there is no
corresponding free subcommand (which would be extremely dangerous); this
is an irreversible process, only intended for performance testing. The
only way to reclaim the space afterwards is to destroy the pool or roll
back to a checkpoint.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Closes #17576
2025-09-10 11:13:24 -07:00
Shengqi Chen
92ca3ae56a contrib/debian: install files into merged /usr
This commit synchronizes the debian packaging files with the distro
version (also maintained by me) as much as possible.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Colm Buckley <colm@tuatha.org>
Signed-off-by: Shengqi Chen <harry-chen@outlook.com>
Closes #17712
2025-09-10 10:45:26 -07:00
Shengqi Chen
9ae20cf03d cmd: rename arcstat to zarcstat
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Colm Buckley <colm@tuatha.org>
Signed-off-by: Shengqi Chen <harry-chen@outlook.com>
Closes #16357
Closes #17712
2025-09-10 10:45:21 -07:00
Shengqi Chen
a5571a0dd1 cmd: rename arc_summary to zarcsummary
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Colm Buckley <colm@tuatha.org>
Signed-off-by: Shengqi Chen <harry-chen@outlook.com>
Closes #16357
Closes #17712
2025-09-10 10:45:13 -07:00
Shengqi Chen
d3429a75b0 Remove renaming notice and symlinks for arcstat and arc_summary
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Colm Buckley <colm@tuatha.org>
Signed-off-by: Shengqi Chen <harry-chen@outlook.com>
Closes #16357
Closes #17712
2025-09-10 10:44:17 -07:00
Tony Hutter
c6fe41cac5
CI: Increase setup timeout to 20min, add timestamps
- Increase qemu-1-setup.sh timeout to 20min since it sometimes
  fails to complete after 15min.

- Timestamp all qemu-1-setup.sh lines to look for hangs.

- Add a 'watchdog' process to print out the top running process every
  30sec to help with debugging.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #17714
2025-09-10 10:25:58 -07:00
Rob Norris
fe2f7cf6d7
linux/rw_destroy: assert no holders before destroying
While rw_destroy() may do nothing on Linux, we still want to make sure
that we don't have any holders outstanding like we do for mutexes.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #17718
2025-09-10 08:59:57 -07:00
Rob Norris
7939bad5e7 Linux 6.17: d_set_d_op() is no longer available
We only have extremely narrow uses, so move it all into a single
function that does only what we need, with and without d_set_d_op().

Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #17621
2025-09-09 13:44:43 -07:00
Rob Norris
9e5e95c24d config: restore ZFS_AC_KERNEL_DENTRY tests
Accidentally removed calls in ed048fdc5b.

Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #17621
2025-09-09 13:44:18 -07:00
Tony Hutter
4b83891db0
ZTS: Fix fault_limits timeouts
fault_limits would often hit the 10min timeout and be killed on Fedora
41-42.  Investigation showed that the 'fill_fs' portion of the test,
which would fill the pool with junk data before vdev replacement, was
writing highly compressible data (~126x), which would have taxed the
CPUs, potentially causing the timeout.

The fix is to write random data and reduce the number of writes.
This has an added benefit that more real data being is written to the
pool (~1GB) vs the old way (~300-400MB).  It also speeds up the test.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #17709
2025-09-09 13:42:01 -07:00
Alan Somers
e29bfa5bd0
Fix warnings about sha2_is_supported on FreeBSD/i386
This is one problem currently preventing OpenZFS from building on
FreeBSD/i386.

Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:	Alan Somers <asomers@gmail.com>
Sponsored by:	ConnectWise
Closes #17704
2025-09-09 09:56:38 -07:00