Commit Graph

1424 Commits

Author SHA1 Message Date
Andrew Gallatin
da81cc6035 dtrace: conditionally load the systrace_linux klds when loading dtrace.
When dtrace starts, it tries to detect if the dtrace klds are loaded,
and if not, it loads them by loading the dtraceall kld. This module
depends on most dtrace modules, including systrace for the native
freebsd and freebsd32 ABIs. However, it does not depend on the
systrace_linux klds, as they in turn depend on the linux ABI klds, and
we don't want to load an ABI module that the user has not explicitly
requested. This can leave a naive user in a state where they think all
syscall providers have been loaded, yet linux ABI syscalls are
"invisible" to dtrace.

To fix this, check to see if the linux ABI modules are loaded. If they
are, then load their systrace klds.

Reviewed by: markj, (emaste & jhb, earlier versions)
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D37986
2023-01-23 20:36:24 -05:00
Mark Johnston
be39466a10 libdtrace: Change the binding of USDT probe symbols to STB_WEAK
Otherwise, if multiple object files contain references to the same
probe, newish lld will refuse to link them by default, raising a
duplicate global symbol definition error.  Previously, duplicate global
symbols with identical absolute st_values were permitted by both lld and
GNU ld.

Since dtrace has no use for probe function symbols after the relocation
performed by dtrace -G, make the symbols weak as well, following a
suggestion from MaskRay.

Reported by:	dim
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2022-12-11 11:27:22 -05:00
Mark Johnston
add8a6c9ac dtrace tests: Extend the kinst regression test
Trace a function which disables interrupts.
2022-12-08 15:07:48 -05:00
Gleb Smirnoff
e68b379244 tcp: embed inpcb into tcpcb
For the TCP protocol inpcb storage specify allocation size that would
provide space to most of the data a TCP connection needs, embedding
into struct tcpcb several structures, that previously were allocated
separately.

The most import one is the inpcb itself.  With embedding we can provide
strong guarantee that with a valid TCP inpcb the tcpcb is always valid
and vice versa.  Also we reduce number of allocs/frees per connection.
The embedded inpcb is placed in the beginning of the struct tcpcb,
since in_pcballoc() requires that.  However, later we may want to move
it around for cache line efficiency, and this can be done with a little
effort.  The new intotcpcb() macro is ready for such move.

The congestion algorithm data, the TCP timers and osd(9) data are
also embedded into tcpcb, and temprorary struct tcpcb_mem goes away.
There was no extra allocation here, but we went through extra pointer
every time we accessed this data.

One interesting side effect is that now TCP data is allocated from
SMR-protected zone.  Potentially this allows the TCP stacks or other
TCP related modules to utilize that for their own synchronization.

Large part of the change was done with sed script:

s/tp->ccv->/tp->t_ccv./g
s/tp->ccv/\&tp->t_ccv/g
s/tp->cc_algo/tp->t_cc/g
s/tp->t_timers->tt_/tp->tt_/g
s/CCV\(ccv, osd\)/\&CCV(ccv, t_osd)/g

Dependency side effect is that code that needs to know struct tcpcb
should also know struct inpcb, that added several <netinet/in_pcb.h>.

Differential revision:	https://reviews.freebsd.org/D37127
2022-12-07 09:00:48 -08:00
Ed Maste
7543a9c028 dwatch: install hard links with same mode as target
Previoulsy when using NO_ROOT we recorded METALOG entries for dwatch
hard links with different file modes than their link targets, which is
not permitted.

Reviewed by:	bapt
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D37477
2022-11-23 15:10:33 -05:00
John Baldwin
7e3e70ce21 libicp: Link with -z noexecstack for ld.bfd.
The assembly source files do not contain GNU-stack annotations, so
ld.bfd defaults to using an executable stack.
2022-11-22 08:37:12 -08:00
Martin Matuska
dbd5678dca zfs: merge openzfs/zfs@2163cde45
Notable upstream pull request merges:
  #13680 Add options to zfs redundant_metadata property
  #13758 Allow mounting snapshots in .zfs/snapshot as a regular user
  #13838 quota: disable quota check for ZVOL
  #13839 quota: extend quota for dataset
  #13973 Fix memory leaks in dmu_send()/dmu_send_obj()
  #13977 Avoid unnecessary metaslab_check_free calling
  #13978 PAM: Fix unchecked return value from zfs_key_config_load()
  #13979 Handle possible null pointers from malloc/strdup/strndup()
  #13997 zstream: allow decompress to fix metadata for uncompressed
         records
  #13998 zvol_wait logic may terminate prematurely
  #14001 FreeBSD: Fix a pair of bugs in zfs_fhtovp()
  #14003 Stop ganging due to past vdev write errors
  #14039 Optimize microzaps
  #14050 Fix draid2+2s metadata error on simultaneous 2 drive failures
  #14062 zed: Avoid core dump if wholedisk property does not exist
  #14077 Propagate extent_bytes change to autotrim thread
  #14079 FreeBSD: vn_flush_cached_data: observe vnode locking contract
  #14093 Fix ARC target collapse when zfs_arc_meta_limit_percent=100
  #14106 Add ability to recompress send streams with new compression
         algorithm
  #14119 Deny receiving into encrypted datasets if the keys are not
         loaded
  #14120 Fix arc_p aggressive increase
  #14129 zed: Prevent special vdev to be replaced by hot spare
  #14133 Expose zfs_vdev_open_timeout_ms as a tunable
  #14135 FreeBSD: Fix out of bounds read in zfs_ioctl_ozfs_to_legacy()
  #14152 Adds the `-p` option to `zfs holds`
  #14161 Handle and detect #13709's unlock regression

Obtained from:	OpenZFS
OpenZFS commit:	2163cde450
2022-11-16 21:27:42 +01:00
Emmanuel Vadot
a71ea7bea0 pkgbase: Put zfs utilities and lib in their own package
It is useful to have zfs utilities and lib in a separate package as
it allow users to create image that can support ZFS (i.e. not with
WITHOUT_ZFS in src.conf set) without bloating the default image with
all zfs tools (for example for jails).

Differential Revision:	https://reviews.freebsd.org/D36225
2022-10-26 19:46:30 +02:00
Gordon Bergling
4bd5e6221e zfsd(8): Fix a typo in an error message
- s/faild/failed/

MFC after:	1 week
2022-10-25 12:55:42 +02:00
Mark Johnston
53a31c87df libdtrace: Fix some CPU register number definitions to match the kernel
MFC after:	1 week
2022-10-12 16:06:37 -04:00
Mark Johnston
19a847e5f2 kinst: Add a rudimentary regression test case
The test instruments a number of large, frequently called kernel
functions while generating load in the background.

MFC after:	3 months
2022-10-11 18:19:55 -04:00
Christos Margiolis
2179a159ea libdtrace: Add kinst support
kinst does not instantiate its probes automatically, it only does so on
demand via an ioctl interface implemented by /dev/kinst.  This change
modifies libdtrace to perform that work when the script references the
kinst provider, similar to the way pid provider probes are implemented.

Reviewed by:	markj
MFC after:	3 months
Sponsored by:	Google, Inc. (GSoC 2022)
Differential Revision:	https://reviews.freebsd.org/D36852
2022-10-11 18:19:08 -04:00
Mark Johnston
bdd101c4d4 dtrace: Add a "regs" variable
This allows invop-based providers (i.e., fbt and kinst) to expose the
register file of the CPU at the point where the probe fired.  It does
not work for SDT providers because their probes are implemented as plain
function calls and so don't save registers.  It's not clear what
semantics "regs" should have for them anyway.

This is akin to "uregs", which nominally provides access to the
userspace registers.  In fact, DIF already had a DIF_VAR_REGS variable
defined, it was simply unimplemented.

Usage example: print the contents of %rdi upon each call to
amd64_syscall():

    fbt::amd64_syscall:entry {printf("%x", regs[R_RDI]);}

Note that the R_* constants are defined in /usr/lib/dtrace/regs_x86.d.
Currently there are no similar definitions for non-x86 platforms.

Reviewed by:	christos
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D36799
2022-10-04 13:05:54 -04:00
John Baldwin
e67b246734 libzpool: Disable -Wuse-after-free for dbuf.c.
The debug traces for reference counting in ZFS use the pointer of the
owning object as a "tag" for references to check that when an object
drops a reference it had actually held one.  In a couple of places ZFS
drops references after freeing the owning object.  In userland GCC
realizes this is a use after free.  However, since only the value of
the pointer is used, and it isn't indirected, the use is harmless.

Reviewed by:	emaste
Differential Revision:	https://reviews.freebsd.org/D36818
2022-10-03 16:10:43 -07:00
Martin Matuska
c7046f76c2 zfs: merge openzfs/zfs@c629f0bf6
Notable upstream pull request merges:
  #13725 Fix BLAKE3 tuneable and module loading on Linux and FreeBSD
  #13756 FreeBSD: Organize sysctls
  #13773 FreeBSD: add kqfilter support for zvol cdev
  #13781 Importing from cachefile can trip assertion
  #13794 Apply arc_shrink_shift to ARC above arc_c_min
  #13798 Improve too large physical ashift handling
  #13799 Revert "Avoid panic with recordsize > 128k, raw sending and
         no large_blocks"
  #13802 Add zfs.sync.snapshot_rename
  #13831 zfs_enter rework
  #13855 zfs recv hangs if max recordsize is less than received
         recordsize

Obtained from:	OpenZFS
OpenZFS commit:	c629f0bf62
2022-09-21 14:17:13 +02:00
Jens Schweikhardt
7c20397b72 In man page cross refs to sudo, indicate it comes from ports/security/sudo. 2022-08-14 11:44:43 +02:00
Mark Johnston
6237c3e74f ctfconvert: Actually use the asprintf() helper
Fixes:	1165fc9a52 ("ctfconvert: Give bitfield types names distinct from the base type")
2022-08-02 20:49:50 -04:00
Mark Johnston
1165fc9a52 ctfconvert: Give bitfield types names distinct from the base type
CTF integers have an explicit width and so can be used to represent
bitfields.  Bitfield types emitted by ctfconvert(1) share the name of
the base integer type, so a struct field with type "unsigned int : 15"
will have a type named "unsigned int".

To avoid ambiguity when looking up types by name, add a suffix to names
of bitfield types to distinguish them from the base type.  Then, if
ctfmerge happens to order bitfield types before the corresponding base
type in a CTF file, a name lookup will return the base type, which is
always going to be the desired behaviour.

PR:		265403
Reported by:	cy
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2022-08-02 20:32:17 -04:00
Mark Johnston
6a05f14381 dtrace tests: Rename some test type names to avoid a conflict
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2022-08-02 20:32:08 -04:00
Mark Johnston
e1700a36a9 dtrace tests: Override RLIMIT_CORE for a test which triggers a core dump
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2022-08-02 20:32:04 -04:00
Kristof Provost
06016a40d6 libnvpair: install libnvpair.h
This is included by libbe/be.h.

Sponsored by:	Rubicon Communications, LLC ("Netgate")
2022-07-21 18:36:01 +02:00
Martin Matuska
a0b956f5ac zfs: merge openzfs/zfs@cb01da680
Notable upstream pull request merges:
  #12438 Avoid panic with recordsize > 128k, raw sending and no large_blocks
  #13015 Fix dnode byteswapping
  #13256 Add a "zstream decompress" subcommand
  #13555 Scrub mirror children without BPs
  #13576 Several sorted scrub optimizations
  #13579 Fix and disable blocks statistics during scrub
  #13582 Several B-tree optimizations
  #13591 Avoid two 64-bit divisions per scanned block
  #13606 Avoid memory copies during mirror scrub
  #13613 Avoid memory copy when verifying raidz/draid parity

Obtained from:	OpenZFS
OpenZFS commit:	cb01da6805
2022-07-08 00:02:36 +02:00
Brooks Davis
3bf6636512 cddl/*: add a WITH(OUT)_DTRACE option
Add an option to enable/disable DTrace without disabling ZFS.  New
architectures such as CHERI may support ZFS before they support DTrace
and the old model of WITHOUT_CDDL disabling both wasn't helpful.

For compatiblity, the CDDL option remains and WITHOUT_CDDL implies
WITHOUT_DTRACE.  WITHOUT_DTRACE also implies WITHOUT_CTF.

As part of this change, largely convert cddl/*/Makefile to using the
more compact SUBDIR.${MK_<FOO>}+= form rather than using intermediate
variables.

Reviewed by:	markj
Obtained from:	CheriBSD
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D35718
2022-07-06 14:03:48 +01:00
Kornel Dulęba
9dbacce2d4 lockstat: Fix construction of comparision predicates
Passing "0x%p" to sprintf results in double "0x" being printed.
This causes a dtrace script compilation failure when "-d" flag
is specified.
Fix that by removing the extraneous "0x".

Reviewed by:	markj
Approved by:	mw(mentor)
Obtained from:	Semihalf
Sponsored by:	Alstom
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D35690
2022-07-04 16:22:22 +02:00
Brooks Davis
711d50bd9e dtrace: Remove local mips support
Remove the stub pid probe and all the build glue.

Reviewed by:	imp, jhb
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D35541
2022-07-01 08:33:17 +01:00
Jessica Clarke
b0a8333a88 libicp_rescue: Fix build for powerpc64le
This is a repeat of 13cee53cef35 ("libicp: Fix build for powerpc64le")
but for the rescue version of the library.

Fixes:	1f1e2261e3 ("zfs: merge openzfs/zfs@deb121309")
2022-07-01 04:28:15 +01:00
Jessica Clarke
9921563f43 libicp: Fix build for powerpc64le
The C sources use the assembly routines for little-endian powerpc64, and
the assembly files have ppc64le in their names, but the guard here was
for big-endian powerpc64.

Fixes:	1f1e2261e3 ("zfs: merge openzfs/zfs@deb121309")
2022-07-01 01:30:26 +01:00
Martin Matuska
1f1e2261e3 zfs: merge openzfs/zfs@deb121309
Notable upstream pull request merges:
  #12918 Introduce BLAKE3 checksums as an OpenZFS feature
  #13553 Reduce ZIO io_lock contention on sorted scrub
  #13537 Improve sorted scan memory accounting
  #13540 AVL: Remove obsolete branching optimizations
  #13563 FreeBSD: Improve crypto_dispatch() handling

Obtained from:	OpenZFS
OpenZFS commit:	deb1213098
2022-06-23 17:49:33 +02:00
Martin Matuska
e3aa18ad71 zfs: merge openzfs/zfs@b9d98453f
Notable upstream pull request merges:
  #12321 Fix inflated quiesce time caused by lwb_tx during zil_commit()
  #13244 zstd early abort
  #13360 Verify BPs as part of spa_load_verify_cb()
  #13452 More speculative prefetcher improvements
  #13466 Expose zpool guids through kstats
  #13476 Refactor Log Size Limit
  #13484 FreeBSD: libspl: Add locking around statfs globals
  #13498 Cancel in-progress rebuilds when we finish removal
  #13499 zed: Take no action on scrub/resilver checksum errors
  #13513 Remove wrong assertion in log spacemap

Obtained from:	OpenZFS
OpenZFS commit:	b9d98453f9
2022-06-03 18:17:53 +02:00
Martin Matuska
716fd348e0 zfs: merge openzfs/zfs@c0cf6ed67
Notable upstream pull request merges:
  #10662 zvol_wait: Ignore locked zvols
  #12789 Improve log spacemap load time
  #12812 Improved zpool status output, list all affected datasets
  #13277 FreeBSD: Use NDFREE_PNBUF if available
  #13302 Make zfs_max_recordsize default to 16M
  #13311 Fix error handling in FreeBSD's get/putpages VOPs
  #13345 FreeBSD: Fix translation from ABD to physical pages
  #13373 zfs: holds: dequadratify
  #13375 Corrected edge case in uncompressed ARC->L2ARC handling
  #13388 Improve mg_aliquot math
  #13405 Reduce dbuf_find() lock contention
  #13406 FreeBSD: use zero_region instead of allocating a dedicated page

Obtained from:	OpenZFS
OpenZFS commit:	c0cf6ed679
2022-05-19 00:55:59 +02:00
Mark Johnston
5727eceabc ctf: Link CTF toolchain man pages to ctf.5
Also expand the CTF acronym to provide a bit of context.

PR:		259790
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2022-04-21 11:20:28 -04:00
Mark Johnston
45dd2eaac3 ctfdump: Remove definitions of warn() and vwarn()
The presence of the latter causes a link error when building a
statically linked ctfdump(1) because libc defines the same symbol.
libc's warn() is defined as a weak symbol and so does not cause the same
problem, but let's just use libc's version.

Reported by:	stephane rochoy <stephane.rochoy@stormshield.eu>
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2022-04-21 11:18:53 -04:00
Mark Johnston
6e563a1b60 libctf: Fix recursive descent into anonymous SOU fields
PR:		262412
Tested by:	dhw, gallatin
Fixes:		a6fb869173 ("libctf: Handle CTFv3 containers")
MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
2022-04-12 17:29:53 -04:00
Li-Wen Hsu
0088bc444e
DTrace test: skip flakey common.misc.t_dtrace_contrib.tst_dynopt_d in CI
PR:		237641
Sponsored by:	The FreeBSD Foundation
2022-03-24 11:37:50 +08:00
Li-Wen Hsu
e62aee66b0
DTrace test: Add a new keyword SKIPCI to gentest.sh
This is for marking a test case is flakey and should not be executed in
the CI environment.

Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D34635
2022-03-24 11:30:27 +08:00
Li-Wen Hsu
16e02ae401
dtrace tests: Fix expected outout for tst.system.d
This is follow up of d500a85e64

PR:		262415
Sponsored by:	The FreeBSD Foundation
2022-03-09 11:39:12 +08:00
Martin Matuska
c03c5b1c80 zfs: merge openzfs/zfs@a86e08941 (master) into main
Notable upstream pull request merges:
  #9078:  log xattr=sa create/remove/update to ZIL
  #11919: Cross-platform xattr user namespace compatibility
  #13014: Report dnodes with faulty bonuslen
  #13016: FreeBSD: Fix zvol_cdev_open locking
  #13019: spl: Don't check FreeBSD rwlocks for double initialization
  #13027: Fix clearing set-uid and set-gid bits on a file when
          replying a write
  #13031: Add enumerated vdev names to 'zpool iostat -v' and
          'zpool list -v'
  #13074: Enable encrypted raw sending to pools with greater ashift
  #13076: Receive checks should allow unencrypted child datasets
  #13098: Avoid dirtying the final TXGs when exporting a pool
  #13172: Fix ENOSPC when unlinking multiple files from full pool

Obtained from:	OpenZFS
OpenZFS commit:	a86e089415
2022-03-08 18:53:02 +01:00
Mark Johnston
3fe1f21fb3 ctf: Avoid passing a caddr_t to roundup2()
For some reason I can't reproduce this locally, but Jenkins complains.

Reported by:	Jenkins
Fixes:		bdf290cd3e ("ctf: Add v3 support to CTF tools, ctf{convert,dump,merge}")
2022-03-07 11:20:57 -05:00
Mark Johnston
cb6f722562 ctf: Fix a -Wunused-but-set-variable warning
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
2022-03-07 10:43:19 -05:00
Mark Johnston
bdf290cd3e ctf: Add v3 support to CTF tools, ctf{convert,dump,merge}
ctfdump handles v2 and v3.  ctfconvert now emits only CTFv3, whereas
ctfmerge can merge v2 and v3 containers into v3 containers.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D34364
2022-03-07 10:43:19 -05:00
Mark Johnston
a6fb869173 libctf: Handle CTFv3 containers
In general, the patch adds indirection to minimize the amount of code
that needs to know about differences between v2 and v3.  Specifically,
some new ctf_get_ctt_* functions are added, and new LCTF_* macros are
added to use the underlying container's version to do the right thing.

CTF containers can have parent/child relationships, wherein a type ID in
one container refers to a type in the parent.  It is permitted for the
parent and child to have different versions.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D34363
2022-03-07 10:43:19 -05:00
Mark Johnston
994297b01b ctf: Add definitions for CTFv3
These are based on definitions added to binutils' libctf.  Specifically:
- Type IDs are now encoded in 32 bits rather than 16, changing the
  layout of ctf_type_t, ctf_array_t, ctf_member_t and ctf_lmember_t.
- Type info is encoded in 32 bits rather than 16.  The type "kind" is
  extended from 5 bits to 6, and the type "vlen" is extended from 10
  bits to 25.

The main upside is that we remove the current limit, imposed by CTFv2,
of 2^{15} distinct types in the main kernel executable.  Other limits,
such as that on the number of elements in an enum, imposed by the vlen
limit, are also raised.

This change adds v2 and v3 flavours of macros and type definitions which
differ between the two versions.  Compatibility is preserved for now by
having generic names refer to the v2 definitions, so, e.g., ctf_type_t
is still a v2 type.

No functional change intended.

Reviewed by:	Domagoj Stolfa
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D34360
2022-03-07 10:43:18 -05:00
Mark Johnston
2d5d2a986c ctf: Import ctf.h from OpenBSD
Use it instead of the existing ctf.h from OpenSolaris.  This makes it
easier to use CTF in the core kernel, and to extend the CTF format to
support wider type IDs.

The imported ctf.h is modified to depend only on _types.h, and also to
provide macros which use the "parent" bit of a type ID to refer to types
in a parent CTF container.

No functional change intended.

Reviewed by:	Domagoj Stolfa, emaste
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D34358
2022-03-07 10:43:18 -05:00
Mark Johnston
45c23c2608 libctf: Use const ctf_file_t references in string lookup routines
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2022-02-23 18:43:51 -05:00
Mark Johnston
1ef441f699 libdtrace: Add a missing newline to an error message
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2022-02-23 11:41:23 -05:00
Mark Johnston
565518046c libctf: Remove checks for CTFv1
Per commit 7db423d692 ("libctf: Rip out CTFv1 support") this support
is obsolete.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2022-02-23 11:41:22 -05:00
Mark Johnston
7be9a3b453 ctfconvert: Rip out STABS support
It is unused on FreeBSD and complicates some efforts to modify the CTF
format to permit wider type IDs, so remove it.  No functional change
intended.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2022-02-10 15:41:10 -05:00
Mark Johnston
7db423d692 libctf: Rip out CTFv1 support
CTFv1 was obsolete before libctf was imported into FreeBSD, and
ctfconvert/ctfmerge can emit only CTFv2.  Make ctf.h a bit easier to
maintain by ripping v1 support out.  No functional change intended.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2022-02-10 15:39:59 -05:00
Mark Johnston
2e4311906d libctf: Use ctf_type_t instead of struct ctf_type
For consistency with other CTF toolchain code.  No functional change
intended.

Fixes:	105fd928b0 ("libctf: Improve check for duplicate SOU definitions in ctf_add_type()")
MFC after:	1 week
2022-02-10 13:21:37 -05:00
Chuck Silvers
f339a3ef63 dtrace: remove unnecessary fflush()
This call was added back in the early days of dtrace porting and
no one knows why anymore.  The extra flushing causes lots of
unnecessary CPU overhead when a script produces lots of output,
as well as easily losing output because the command can't keep up.

Sponsored by:	Netflix
Reviewed by:	imp, markj
Differential Revision:	https://reviews.freebsd.org/D34216
2022-02-09 17:09:26 -08:00
Dimitry Andric
5f2aca8394 Disable clang 14 warning about bitwise operators in zstd
Parts of zstd, used in openzfs and other places, trigger a new clang 14
-Werror warning:

```
sys/contrib/zstd/lib/decompress/huf_decompress.c:889:25: error: use of bitwise '&' with boolean operands [-Werror,-Wbitwise-instead-of-logical]
                        (BIT_reloadDStreamFast(&bitD1) == BIT_DStream_unfinished)
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```

While the warning is benign, it should ideally be fixed upstream and
then vendor-imported, but for now silence it selectively.

MFC after:	3 days
2022-02-08 21:46:08 +01:00
Martin Matuska
e92ffd9b62 zfs: merge openzfs/zfs@17b2ae0b2 (master) into main
Notable upstream pull request merges:
  #12766 Fix error propagation from lzc_send_redacted
  #12805 Updated the lz4 decompressor
  #12851 FreeBSD: Provide correct file generation number
  #12857 Verify dRAID empty sectors
  #12874 FreeBSD: Update argument types for VOP_READDIR
  #12896 Reduce number of arc_prune threads
  #12934 FreeBSD: Fix zvol_*_open() locking
  #12947 lz4: Cherrypick fix for CVE-2021-3520
  #12961 FreeBSD: Fix leaked strings in libspl mnttab
  #12964 Fix handling of errors from dmu_write_uio_dbuf() on FreeBSD
  #12981 Introduce a flag to skip comparing the local mac when raw sending
  #12985 Avoid memory allocations in the ARC eviction thread

Obtained from:	OpenZFS
OpenZFS commit:	17b2ae0b24
2022-01-22 23:05:15 +01:00
Andriy Gapon
256c8c5df2 dt_unring_buf: set dtbd_oldest to the start of the first record
It was set to the start of the buffer and that can be different from the
start of teh first record because of a misalignment.

This change follows the example of dt_realloc_buf().

Reviewed by:	tsoome, markj
MFC after:	4 weeks
Differential Revision:	https://reviews.freebsd.org/D33649
2022-01-11 15:44:04 +02:00
Mark Johnston
963f5dc7a3 ctfconvert: Handle arrays of empty structs
Members with such a type will legitimately have a size of zero, so don't
emit a warning.

PR:		260818
Reviewed by:	bz
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D33700
2021-12-31 12:55:01 -05:00
Domagoj Stolfa
30ec3138ed dtrace: Disable getf() as it is broken on FreeBSD
getf() on FreeBSD calls _sx_slock(), _sx_sunlock() and fget_locked().
Furthermore, it does not set the per-core fault flag, meaning it
usually ends up in a double fault panic once getf() does get called,
especially from fbt.

Reviewing the DTrace Toolkit + a number of other scripts scattered
around FreeBSD, I have not been able to find one use of getf(). Given
how broken the implementation currently is, we disable it until it
can be implemented properly.

Also comment out a test in aggs/tst.subr.d for getf().

Reviewed by:	markj
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D33378
2021-12-17 13:10:22 -05:00
Greg V
9e9c651cac cddl: fix missing ZFS library dependencies
In 9fae47666 zfsd got a libspl dependency to avoid undefined references.
However that workaround did not help external consumers of libzfs_core.

Fix all missing dependencies lld 13 and the rtld complain about.

Reviewed by:	freqlabs, markj
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D32521
2021-11-15 09:42:07 -05:00
Martin Matuska
6ba2210ee0 zfs: merge openzfs/zfs@ec64fdb93 (master) into main
Notable upstream pull request merges:
  #12392 Avoid panic in case of pool errors and missing L2ARC
  #12448 skip snapshot in zfs_iter_mounted()
  #12516 Fix NFS and large reads on older kernels
  #12533 Fail invalid incremental recursive send gracefully
  #12569 FreeBSD: Really zero the zero page
  #12575 Reject zfs send -RI with nonexistent fromsnap
  #12602 Correct refcount_add in dmu_zfetch
  #12650 zpool should call zfs_nicestrtonum() with non-NULL handle

Obtained from:	OpenZFS
OpenZFS commit:	ec64fdb93d
2021-10-21 15:06:06 +02:00
Mark Johnston
105fd928b0 libctf: Improve check for duplicate SOU definitions in ctf_add_type()
When copying a struct or union from one CTF container to another,
ctf_add_type() checks whether it matches an existing type in the
destination container.  It does so by looking for a type with the same
name and kind as the new type, and if one exists, it iterates over all
members of the source type and checks whether a member with matching
name and offset exists in the matched destination type.  This can
produce false positives, for example because member types are not
compared, but this is not expected to arise in practice.  If the match
fails, ctf_add_type() returns an error.

The procedure used for member comparison breaks down in the face of
anonymous struct and union members.  ctf_member_iter() visits each
member in the source definition and looks up the corresponding member in
the desination definition by name using ctf_member_info(), but this
function will descend into anonymous members and thus fail to match.
Fix the problem by introducing a custom comparison routine which does
not assume member names are unique.  This should also be faster for
types with many members; in the previous scheme, membcmp() would perform
a linear scan of the desination type's members to perform a lookup by
name.  The new routine steps through the members of both types in a
single loop.

PR:		258763
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2021-10-04 12:28:22 -04:00
Mark Johnston
a40c4ae866 dtrace.1: Document a couple of preprocessor-related options
Suggested by:	swills
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2021-09-07 14:04:50 -04:00
Mark Johnston
13d9437a60 dtrace.1: Document -x ldpath
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2021-09-07 11:19:29 -04:00
Emmanuel Vadot
a3266ba269 pkgbase: Create a FreeBSD-dwatch package
While dwatch is useful some users might not want it by default.
Create a package for it.

Differential Revision:	https://reviews.freebsd.org/D31796
2021-09-07 10:20:40 +02:00
Dimitry Andric
9fae476669 Explicitly link zfsd with libspl to avoid undefined references
Because lld 13.0.0 is more strict about undefined references when
linking to shared libraries, it produces the following errors for zfsd:

ld: error: /home/dim/obj/home/dim/src/llvm-13-update/amd64.amd64/tmp/usr/lib/libzfs_core.so: undefined reference to libspl_assertf [--no-allow-shlib-undefined]
ld: error: /home/dim/obj/home/dim/src/llvm-13-update/amd64.amd64/tmp/usr/lib/libnvpair.so: undefined reference to libspl_assertf [--no-allow-shlib-undefined]
ld: error: /home/dim/obj/home/dim/src/llvm-13-update/amd64.amd64/tmp/usr/lib/libavl.so: undefined reference to libspl_assertf [--no-allow-shlib-undefined]
*** [zfsd.full] Error code 1

Fix this by adding libspl (where libspl_assertf lives) to zfsd's LIBADD.

MFC after:	3 days
2021-08-28 20:23:28 +02:00
Martin Matuska
48b4fe0503 zfs: attach zpool_influxdb to build
From the zpool_influxdb.8 manual page:
  zpool_influxdb produces InfluxDB-line-protocol-compatible metrics from
  zpools.  Like the zpool command, zpool_influxdb reads the current pool
  status and statistics.  Unlike the zpool command which is intended for
  humans, zpool_influxdb formats the output in the InfluxDB line protocol.
  The expected use is as a plugin to a metrics collector or aggregator,
  such as Telegraf.

zpool_influxdb is installed into /usr/libexec/zfs/

Differential revision:	https://reviews.freebsd.org/D31094
MFC after:	3 days
2021-07-07 20:15:12 +02:00
Ryan Moeller
53b438b242 zfsd: Check for error from zpool_vdev_online
Onlining a vdev can fail. Log the error if it does.

Reviewed by:	mav, asomers
MFC after:	1 week
Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D30882
2021-07-06 16:00:18 +00:00
Emmanuel Vadot
79ac3c12a7 pkgbase: Put dtrace in its own package
While dtrace is usefull some people might not want it.

Differential Revision:	https://reviews.freebsd.org/D30752
Sponsored by:	Diablotin Systems
2021-06-19 17:49:31 +02:00
Domagoj Stolfa
a877965fa3 dtrace: fix an out of bound read and a NULL pointer increment
In dt_cc.c when the provider is an empty string, accessing
strlen(pdp->dtpd_provider) - 1 will result in a pdp->dtpd_provider[-1]
access.

Similarly, in dt_ident.c, if p2 is a NULL pointer, doing a p2++ on it is
undefined behaviour.

Reviewed by:	markj
MFC after:	1 week
Sponsored by:	Google
Differential Revision:	https://reviews.freebsd.org/D30778
2021-06-17 13:52:32 -04:00
Jessica Clarke
d5c1296234 spl: Unbreak crossbuild after f20893853e
Summary:
f20893853e made getexecname no longer guarded by BOOTSTRAPPING, but it
does not build on non-FreeBSD as it tries to use KERN_PROC_PATHNAME and
related constants.

Reviewers: mm, imp

Reviewed By: imp

Subscribers: imp

Differential Revision: https://reviews.freebsd.org/D30763
2021-06-15 01:23:04 +01:00
Martin Matuska
44877c8db0 zfs: change zstream -> zstreamdump link into a symlink 2021-06-13 05:40:18 +02:00
Martin Matuska
3ff01b231d zfs: merge openzfs/zfs@afa7b3484 (master) into main
Notable upstream pull request merges:
  #12149: Multiple man-pages: Move to appropriate section
  #12158: Re-embed multilist_t storage
  #12191: Convert non-libzpool libraries to -fvisibility=hidden
  #12196: Unify manpage makefiles, move pages to better sexions, ...
  #12210: libzutil: import filtering optimisation
  #12212: Remove pool io kstats

Obtained from:	OpenZFS
OpenZFS commit:	afa7b34845
2021-06-13 04:38:47 +02:00
Warner Losh
7aa2e90176 spl: Fix gcc6 build
-Wno-error= is only a clang flag, restrict its use to only clang.

Sponsored by:		Netflix
2021-06-10 21:28:52 -06:00
Martin Matuska
47ddbfae27 zfs: unbreak build with clang 12
Change -Wno-error-atomic-alignment to -Wno-error=atomic-alignment
in the Makefile of libspl.

Reported by:	Ed Maste <emaste@FreeBSD.org>
Fix by:		Alexander Richardson <arichardson@FreeBSD.org>
2021-06-11 01:34:46 +02:00
Martin Matuska
f20893853e zfs: unbreak build broken in 160388166 2021-06-08 22:21:11 +02:00
Martin Matuska
1603881667 zfs: merge openzfs/zfs@75b4cbf62 (master) into main
Notable upstream pull request merges:
  #11710 Allow zfs to send replication streams with missing snapshots
  #11751 Avoid taking global lock to destroy zfsdev state
  #11786 Ratelimit deadman zevents as with delay zevents
  #11803 ZFS traverse_visitbp optimization to limit prefetch
  #11813 Allow pool names that look like Solaris disk names
  #11822 Atomically check and set dropped zevent count
  #11822 Don't scale zfs_zevent_len_max by CPU count
  #11833 Refactor zfsdev state init/destroy to share common code
  #11837 zfs get -p only outputs 3 columns if "clones" property is empty
  #11843 libzutil: zfs_isnumber(): return false if input empty
  #11849 Use dsl_scan_setup_check() to setup a scrub
  #11861 Improvements to the 'compatibility' property
  #11862 cmd/zfs receive: allow dry-run (-n) to check property args
  #11864 receive: don't fail inheriting (-x) properties on wrong dataset type
  #11877 Combine zio caches if possible
  #11881 FreeBSD: use vnlru_free_vfsops if available
  #11883 FreeBSD: add support for lockless symlink lookup
  #11884 FreeBSD: add missing seqc write begin/end around zfs_acl_chown_setattr
  #11896 Fix crash in zio_done error reporting
  #11905 zfs-send(8): Restore sorting of flags
  #11926 FreeBSD: damage control racing .. lookups in face of mkdir/rmdir
  #11930 vdev_mirror: don't scrub/resilver devices that can't be read
  #11938 Fix AVX512BW Fletcher code on AVX512-but-not-BW machines
  #11955 zfs get: don't lookup mount options when using "-s local"
  #11956 libzfs: add keylocation=https://, backed by fetch(3) or libcurl
  #11959 vdev_id: variable not getting expanded under map_slot()
  #11966 Scale worker threads and taskqs with number of CPUs
  #11994 Clean up use of zfs_log_create in zfs_dir
  #11997 FreeBSD: Don't force xattr mount option
  #11997 FreeBSD: Implement xattr=sa
  #11997 FreeBSD: Use SET_ERROR to trace xattr name errors
  #11998 Simplify/fix dnode_move() for dn_zfetch
  #12003 FreeBSD: Initialize/destroy zp->z_lock
  #12010 Fix dRAID self-healing short columns
  #12033 Revert "Fix raw sends on encrypted datasets when copying back snapshots"
  #12040 Reinstate the old zpool read label logic as a fallback
  #12046 Improve scrub maxinflight_bytes math
  #12049 FreeBSD: avoid memory allocation in arc_prune_async
  #12052 FreeBSD: incorporate changes to the VFS_QUOTACTL(9) KPI
  #12061 Fix dRAID sequential resilver silent damage handling
  #12072 Let zfs diff be more permissive
  #12077 FreeBSD: Retry OCF ENOMEM errors.
  #12088 Propagate vdev state due to invalid label corruption
  #12091 libzfs: On FreeBSD, use MNT_NOWAIT with getfsstat
  #12097 FreeBSD: Update dataset_kstats for zvols in dev mode
  #12104 FreeBSD boot code reminder after zpool upgrade
  #12114 Introduce write-mostly sums

Obtained from:	OpenZFS
OpenZFS commit:	75b4cbf625
2021-06-08 16:52:44 +02:00
Alan Somers
fc3ba3e9fa Delete obsolete Solaris compat files
These files have been unused ever since the OpenSolaris import

Sponsored by:	Axcient
MFC after:	2 weeks
Reviewed By:	freqlabs
Differential Revision: https://reviews.freebsd.org/D30371
2021-05-24 08:48:47 -06:00
Mark Johnston
d500a85e64 dtrace tests: Fix tst.system.d after ping/ping6 unification
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2021-04-23 10:28:09 -04:00
Domagoj Stolfa
7653f9317b dtrace: Document the libdir, nolibs and syslibdir options
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D29541
2021-04-02 17:42:38 -04:00
Mark Johnston
3c065eeaa7 libctf: Adjust logic to match upstream after 410556f1f
No functional change intended.

Suggested by:	jrtc27
MFC after:	1 week
2021-03-27 20:37:12 -04:00
Domagoj Stolfa
410556f1f1 libctf: Fix an out-of-bounds read in ctf_lookup_by_name()
When prefixes such as struct, union, etc. are compared with the current
type (e.g. struct foo), a comparison is made with the prefix.  The code
currently assumes that every type is a valid C type with a prefix,
however at times, garbage ends up in this function causing an
unpredictable crash with DTrace due to the isspace(*p) call or
subsequent calls. An example that I've seen of this is the letter 's'
being passed in, comparing true with struct as the comparison size was
(q - p) == 1, but then we increment p with the length of "struct",
resulting in an out of bounds read.

Reviewed by:	markj
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D29435
2021-03-27 14:04:12 -04:00
Emmanuel Vadot
b5fc9e350c pkgbase: Move libicp in utilities
libicp is used by zdb zhack zinject zstream ztest libzpool.so.2 which
are all in FreeBSD-utilities.

Reviewed by:	bapt, emaste
Differential Revision:	https://reviews.freebsd.org/D29164
MFC after:	2 weeks
2021-03-16 07:12:40 +01:00
Greg V
ee21ee1572 openzfs: attach pam_zfs_key to build
This PAM module allows unlocking encrypted user home datasets when
logging in (and changing passphrase when changing the account password),
see https://github.com/openzfs/zfs/pull/9903

Also supposed to unload the key when the last session for the user is
done, but there are EBUSY issues:
https://github.com/openzfs/zfs/issues/11222#issuecomment-731897858

Submitted by:	Greg V <greg_unrelenting.technology>
Reviewed by:	mm
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D28018
2021-03-02 07:26:59 -05:00
Ryan Moeller
2ae79aa362 Install links for zpool feature compat aliases
The alias links were missed when this feature was introduced to the
FreeBSD build system in 10f57cb98f.

Reviewed by:	mm
MFC after:	1 week
Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D28925
2021-02-25 14:16:09 -05:00
Martin Matuska
ba27dd8be8 zfs: merge OpenZFS master-9312e0fd1
Notable upstream changes:
  778869fa1 Fix reporting of mount progress
  e7adccf7f Disable use of hardware crypto offload drivers on FreeBSD
  03e02e5b5 Fix checksum errors not being counted on repeated repair
  64e0fe14f Restore FreeBSD resource usage accounting
  11f2e9a49 Fix panic if scrubbing after removing a slog device

MFC after:	2 weeks
2021-02-22 13:01:17 +01:00
Mark Johnston
150fc89a12 libdtrace: Trivial style fixes to force dt_lex.c to be regenerated
After commit 8ba333e02e ("libdtrace: Stop relying on lex
compatibility"), there have been several reports of incremental
buildworlds failing since make does not know that dt_lex.c needs to be
regenerated, and I want to avoid this when merging to stable/13.

MFC with:	8ba333e02e
2021-02-19 21:51:18 -05:00
Martin Matuska
10f57cb98f zfs: bump version and install new share files
- bump version to 2.0.0-FreeBSD_gbf156c966
- install definition files for the new "-o compatibility" option
  to "zpool create"

MFC after:	2 weeks
2021-02-18 15:21:10 +01:00
Mark Johnston
8ba333e02e libdtrace: Stop relying on lex compatibility
It does not appear to be required, and as of commit 6b7e592c21
("lex: Do not let input() return 0 when end-of-file is reached") it
causes input to return 0 instead of EOF when end-of-input is reached.

PR:		253440
MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
2021-02-17 10:57:19 -05:00
Martin Matuska
184c1b9439 zfs: merge OpenZFS master-436ab35a5
- speed up writing to ZFS pools without ZIL devices (aa755b3)
- speed up importing ZFS pools (2d8f72d, a0e0199, cf0977a)
...

MFC after:		2 weeks
Reviewed by:		mjg (partial)
Tested by:		pho
Differential Revision:	https://reviews.freebsd.org/D28677
2021-02-16 02:46:28 +01:00
Kyle Evans
123ae3045d build: remove LIBPTHREAD/LIBTHR build options
WITHOUT_LIBTHR has been broken for a little over five years now, since the
xz 5.2.0 update introduced a hard liblzma dependency on libthr, and building
a useful system without threading support is becoming increasingly more
difficult.

Additionally, in the five plus years that it's been broken more reverse
dependencies have cropped up in libzstd, libsqlite3, and libcrypto (among
others) that make it more and more difficult to reconcile the effort needed
to fix these options.

Remove the broken options.

PR:		252760
Reviewed by:	brooks, emaste, kib
Differential Revision:	https://reviews.freebsd.org/D28263
2021-01-22 12:33:27 -06:00
Ryan Libby
c14e17a49c dtrace tests: fix prototypes for gcc build
- quiet -Wstrict-prototypes
 - provide prototypes for weak aliases

Reviewed by:	markj
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D28036
2021-01-10 21:53:15 -08:00
Mark Johnston
d00431a7bd libdtrace: Format USDT symbols correctly based on symbol binding
Before we did not handle weak symbols correctly, sometimes resulting in
link errors from dtrace -G when processing object files where functions
with weak aliases contain USDT probes.

Reported by:	rlibby
Tested by:	rlibby
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2021-01-10 17:58:38 -05:00
Matt Macy
b363d3d52a OpenZFS: Fix issues caused by reversed commits + rebase 2021-01-07 17:42:10 -08:00
Alex Richardson
1f6612b444 Install dtrace.h and dependencies
This makes the minimum amount of changes to allow inclusion of dtrace.h
without all the solaris compatibility headers. Installing dtrace.h allows
compiling consumers of libdtrace (e.g. https://github.com/tmetsch/python-dtrace)
without requiring a copy of the source tree.
For python-dtrace I worked around this in 58019c9a12
but being able to build the library without installed sources would be
extremely useful.

Reviewed By:	gnn
Differential Revision: https://reviews.freebsd.org/D27884
2021-01-07 09:26:21 +00:00
Andriy Gapon
b946eede04 dtrace: honor LC_NUMERIC for %'d and alike, and LC_TIME for %T
Note that the public documentation on dtrace.org fails to mention %T and
incorrectly documents %Y.  The latter actually uses format "%Y %b %e %T"
where %b is always in C locale.

Discussed with:	markj
MFC after:	1 month
Sponsored by:	Panzura
2020-12-03 11:59:40 +00:00
Jonathan T. Looney
96fbe51956 When copying types from one CTF container to another, ensure that we
encode 0-length (i.e. "") structure and union member names as offset 0.
This ensures that we don't confuse other parts of the CTF code which
expect this encoding.

This resolves a Dtrace error resolving members of anonymous structs/unions
within the (struct mbuf) type which some users were seeing after r366908.

While here, update the code in ctf_add_generic() to encode 0-length type
names as offset 0.

Reviewed by:	markj
MFC after:	2 weeks
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D27246
2020-11-20 17:26:02 +00:00
Jonathan T. Looney
3cbb4cc200 When copying types from one CTF container to another, ensure that we
always copy intrinsic data types before copying bitfields which are
based on those types. This ensures the type ordering in the destination
CTF container matches the assumption made elsewhere in the CTF code
that instrinsic data types will always appear before bitfields based on
those types.

This resolves the following error message some users have seen after
r366908:
    "/usr/lib/dtrace/ipfw.d", line 121: failed to copy type of 'ip6p':
    Conflicting type is already defined

Reviewed by:	markj
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D27213
2020-11-17 14:07:27 +00:00
Brooks Davis
73734d6eb1 Add missing includes of src.opts.mk
Without this "SUBDIR.${MK_TESTS}=tests" would always expand to
"SUBDIR.=tests" resulting in the tests not being built.

Sponsored by:	DARPA
2020-11-16 17:20:35 +00:00
Kyle Evans
7cc42f6d25 Do a sweep and remove most WARNS=6 settings
Repeating the default WARNS here makes it slightly more difficult to
experiment with default WARNS changes, e.g. if we did something absolutely
bananas and introduced a WARNS=7 and wanted to try lifting the default to
that.

Drop most of them; there is one in the blake2 kernel module, but I suspect
it should be dropped -- the default WARNS in the rest of the build doesn't
currently apply to kernel modules, and I haven't put too much thought into
whether it makes sense to make it so.
2020-10-01 01:10:51 +00:00
Toomas Soome
e307eb94ae loader: zfs should support bootonce an nextboot
bootonce feature is temporary, one time boot, activated by
"bectl activate -t BE", "bectl activate -T BE" will reset the bootonce flag.

By default, the bootonce setting is reset on attempt to boot and the next
boot will use previously active BE.

By setting zfs_bootonce_activate="YES" in rc.conf, the bootonce BE will
be set permanently active.

bootonce dataset name is recorded in boot pool labels, bootenv area.

in case of nextboot, the nextboot_enable boolean variable is recorded in
freebsd:nvstore nvlist, also stored in boot pool label bootenv area.
On boot, the loader will process /boot/nextboot.conf if nextboot_enable
is "YES", and will set nextboot_enable to "NO", preventing /boot/nextboot.conf
processing on next boot.

bootonce and nextboot features are usable in both UEFI and BIOS boot.

To use bootonce/nextboot features, the boot loader needs to be updated on disk;
if loader.efi is stored on ESP, then ESP needs to be updated and
for BIOS boot, stage2 (zfsboot or gptzfsboot) needs to be updated
(gpart or other tools).

At this time, only lua loader is updated.

Sponsored by:	Netflix, Klara Inc.
Differential Revision:	https://reviews.freebsd.org/D25512
2020-09-21 09:01:10 +00:00
Mark Johnston
c6989859ae Address compiler warnings in C code used by the DTrace test suite.
Reported by:	Jenkins
MFC after:	1 week
2020-09-19 16:15:22 +00:00
Alex Richardson
79e02149fc Fix dtrace tools bootstrap on non-FreeBSD after OpenZFS import
This required surprisingly few build system changes and only two changes to the
openZFS compat headers which have been upstreamed as
https://github.com/openzfs/zfs/pull/10863

Reviewed By:	#zfs, freqlabs
Differential Revision: https://reviews.freebsd.org/D26193
2020-09-19 12:08:16 +00:00
Matt Macy
2c48331d28 MFV 2.0-rc2
- Fixes divide by zero for unusual hz
- remove cryptodev dependency
2020-09-18 23:21:24 +00:00