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4 years agoOptimize diff -q.
markj [Mon, 13 Jan 2020 18:29:47 +0000 (18:29 +0000)]
Optimize diff -q.

Once we know whether the files differ, we don't need to do any further
work.

PR: 242828
Submitted by: fehmi noyan isi <fnoyanisi@yahoo.com> (original version)
Reviewed by: bapt, kevans
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D23152

4 years agotap(4): also note that we drop configured addresses
kevans [Mon, 13 Jan 2020 18:26:27 +0000 (18:26 +0000)]
tap(4): also note that we drop configured addresses

This provides a specific pointer for users of tap(4) to understand why their
interfaces are losing their addresses, and specifically how to workaround
this if they need different behavior.

This manpage received a .Dd bump earlier today in r35688, so no bump occurs
this time.

Submitted by: sigsys@gmail.com (via IRC)

4 years agoloader: allocate properly aligned buffer for network packet
tsoome [Mon, 13 Jan 2020 18:22:54 +0000 (18:22 +0000)]
loader: allocate properly aligned buffer for network packet

Use memalign(4, size) to ensure we have properly aligned buffer.

MFC after: 2 weeks

4 years agoInstall tap(4) manpage as vmnet(4) as well
kevans [Mon, 13 Jan 2020 17:02:42 +0000 (17:02 +0000)]
Install tap(4) manpage as vmnet(4) as well

If one comes across a vmnet interface, this is a useful pointer to have
towards what it actually is if they're otherwise unfamiliar.

MFC after: 3 days

4 years agogprof: Enable riscv
kp [Mon, 13 Jan 2020 16:52:26 +0000 (16:52 +0000)]
gprof: Enable riscv

Add a missing riscv.h header file, and fix the check for riscv (must test
MACHINE_CPUARCH, not MACHINE_ARCH, if we want to use 'riscv').

Sponsored by: Axiado

4 years agoFix a typo.
gjb [Mon, 13 Jan 2020 16:31:58 +0000 (16:31 +0000)]
Fix a typo.

MFC after: 3 days
Sponsored by: Rubicon Communications, LLC (netgate.com)

4 years agoEnsure the TYPE, BRANCH, and REVISION variables are set in
gjb [Mon, 13 Jan 2020 16:31:00 +0000 (16:31 +0000)]
Ensure the TYPE, BRANCH, and REVISION variables are set in
cloudware targets when OSRELEASE is overridden.

Submitted by: Trond Endrestol
PR: 243287
MFC after: 3 days
Sponsored by: Rubicon Communications, LLC (netgate.com)

4 years agosrc.conf.5: regen after r356615, KERBEROS_SUPPORT dep on KERBEROS
emaste [Mon, 13 Jan 2020 14:50:22 +0000 (14:50 +0000)]
src.conf.5: regen after r356615, KERBEROS_SUPPORT dep on KERBEROS

4 years agoufs: relax an overzealous assert added in r356671
mjg [Mon, 13 Jan 2020 14:33:51 +0000 (14:33 +0000)]
ufs: relax an overzealous assert added in r356671

Part of i_flag can persist across a drop to hold count of 0, at which
point the vnode is taken off the lazy list. Then whoever locks and unlocks
the vnode can trip on the assert.

This trips over kyua running a test untarring character devices to ufs.

Reported by: lwhsu

4 years agoCode must not unlock a mutex while owning the thread lock.
kib [Mon, 13 Jan 2020 14:30:19 +0000 (14:30 +0000)]
Code must not unlock a mutex while owning the thread lock.

Reviewed by: hselasky, markj
Sponsored by: Mellanox Technologies
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D23150

4 years agoSync with r356645. desiredvnodes is now maxvnodes.
cy [Mon, 13 Jan 2020 06:55:38 +0000 (06:55 +0000)]
Sync with r356645. desiredvnodes is now maxvnodes.

4 years agoAs of r356642 desiredvnodes is u_long.
cy [Mon, 13 Jan 2020 06:55:35 +0000 (06:55 +0000)]
As of r356642 desiredvnodes is u_long.

4 years agoUnbound's config.h is manually maintained, using a ./configure produced
cy [Mon, 13 Jan 2020 06:55:31 +0000 (06:55 +0000)]
Unbound's config.h is manually maintained, using a ./configure produced
config.h as a guide. In practice contributed software maintains a copy
of config.h within its build directory tree containing its Makefile.
usr.sbin/unbound is the home for its config.h.

MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D22983

4 years agoRISC-V: fix global symbol lookups for mpentry with lld
mhorne [Mon, 13 Jan 2020 03:39:02 +0000 (03:39 +0000)]
RISC-V: fix global symbol lookups for mpentry with lld

This is a follow up to r356481. In locore.S, before virtual memory is
set up, we should avoid using indirect address lookups through the GOT.
Therefore we need to convert uses of the la instruction to lla, which
always generates an auipc/addi pair of instructions. This conversion was
done for the BSP case, but not the AP case, resulting in a fault
somewhere before mpva and a failure to bring APs online.

Reported by: lwhsu
Reviewed by: lwhsu, jrtc27 (accepted in a comment)
Differential Revision: https://reviews.freebsd.org/D23138

4 years agovfs: per-cpu batched requeuing of free vnodes
mjg [Mon, 13 Jan 2020 02:39:41 +0000 (02:39 +0000)]
vfs: per-cpu batched requeuing of free vnodes

Constant requeuing adds significant lock contention in certain
workloads. Lessen the problem by batching it.

Per-cpu areas are locked in order to synchronize against UMA freeing
memory.

vnode's v_mflag is converted to short to prevent the struct from
growing.

Sample result from an incremental make -s -j 104 bzImage on tmpfs:
stock:   122.38s user 1780.45s system 6242% cpu 30.480 total
patched: 144.84s user 985.90s system 4856% cpu 23.282 total

Reviewed by: jeff
Tested by: pho (in a larger patch, previous version)
Differential Revision: https://reviews.freebsd.org/D22998

4 years agovfs: rework vnode list management
mjg [Mon, 13 Jan 2020 02:37:25 +0000 (02:37 +0000)]
vfs: rework vnode list management

The current notion of an active vnode is eliminated.

Vnodes transition between 0<->1 hold counts all the time and the
associated traversal between different lists induces significant
scalability problems in certain workloads.

Introduce a global list containing all allocated vnodes. They get
unlinked only when UMA reclaims memory and are only requeued when
hold count reaches 0.

Sample result from an incremental make -s -j 104 bzImage on tmpfs:
stock:   118.55s user 3649.73s system 7479% cpu 50.382 total
patched: 122.38s user 1780.45s system 6242% cpu 30.480 total

Reviewed by: jeff
Tested by: pho (in a larger patch, previous version)
Differential Revision: https://reviews.freebsd.org/D22997

4 years agoufs: use lazy list instead of active list for syncer
mjg [Mon, 13 Jan 2020 02:35:15 +0000 (02:35 +0000)]
ufs: use lazy list instead of active list for syncer

Quota code is temporarily regressed to do a full vnode scan.

Reviewed by: jeff
Tested by: pho (in a larger patch, previous version)
Differential Revision: https://reviews.freebsd.org/D22996

4 years agovfs: add per-mount vnode lazy list and use it for deferred inactive + msync
mjg [Mon, 13 Jan 2020 02:34:02 +0000 (02:34 +0000)]
vfs: add per-mount vnode lazy list and use it for deferred inactive + msync

This obviates the need to scan the entire active list looking for vnodes
of interest.

msync is handled by adding all vnodes with write count to the lazy list.

deferred inactive directly adds vnodes as it sets the VI_DEFINACT flag.

Vnodes get dequeued from the list when their hold count reaches 0.

Newly added MNT_VNODE_FOREACH_LAZY* macros support filtering so that
spurious locking is avoided in the common case.

Reviewed by: jeff
Tested by: pho (in a larger patch, previous version)
Differential Revision: https://reviews.freebsd.org/D22995

4 years agoufs: add a setter for inode i_flag field
mjg [Mon, 13 Jan 2020 02:31:51 +0000 (02:31 +0000)]
ufs: add a setter for inode i_flag field

This will be used later to add vnodes to the lazy list.

Reviewed by: kib (previous version), jeff
Tested by: pho (in a larger patch)
Differential Revision: https://reviews.freebsd.org/D22994

4 years agoFix a typo in r356667 comment
cem [Sun, 12 Jan 2020 23:52:16 +0000 (23:52 +0000)]
Fix a typo in r356667 comment

No functional change.

Reported by: bdragon
Approved by: csprng(markm), earlier version
X-MFC-With: r356667

4 years agogetrandom(2): Add Linux GRND_INSECURE API flag
cem [Sun, 12 Jan 2020 20:47:38 +0000 (20:47 +0000)]
getrandom(2): Add Linux GRND_INSECURE API flag

Treat it as a synonym for GRND_NONBLOCK.  The reasoning is this:

We have two choices for handling Linux's GRND_INSECURE API flag.

1. We could ignore it completely (like GRND_RANDOM).  However, this might
produce the surprising result of GRND_INSECURE requests blocking, when the
Linux API does not block.

2. Alternatively, we could treat GRND_INSECURE requests as requests for
GRND_NONBLOCk.  Here, the surprising result for Linux programs is that
invocations with unseeded random(4) will produce EAGAIN, rather than
garbage.

Honoring the flag in the way Linux does seems fraught.  If we actually use
the output of a random(4) implementation prior to seeding, we leak some
entropy (in an information theory and also practical sense) from what will
be the initial seed to attackers (or allow attackers to arbitrary DoS
initial seeding, if we don't leak).  This seems unacceptable -- it defeats
the purpose of blocking on initial seeding.

Secondary to that concern, before seeding we may have arbitrarily little
entropy collected; producing output from zero or a handful of entropy bits
does not seem particularly useful to userspace.

If userspace can accept garbage, insecure, non-random bytes, they can create
their own insecure garbage with srandom(time(NULL)) or similar.  Any program
which would be satisfied with a 3-bit key CTR stream has no need for CSPRNG
bytes.  So asking the kernel to produce such an output from the secure
getrandom(2) API seems inane.

For now, we've elected to emulate GRND_INSECURE as an alternative spelling
of GRND_NONBLOCK (2).  Consider this API not-quite stable for now.  We
guarantee it will never block.  But we will attempt to monitor actual port
uptake of this bizarre API and may revise our plans for the unseeded
behavior (prior stable/13 branching).

Approved by: csprng(markm), manpages(bcr)
See also: https://lwn.net/ml/linux-kernel/cover.1577088521.git.luto@kernel.org/
See also: https://lwn.net/ml/linux-kernel/20200107204400.GH3619@mit.edu/
Differential Revision: https://reviews.freebsd.org/D23130

4 years agoFix the way 'factor' behaves when using OpenSSL to match the description
gad [Sun, 12 Jan 2020 20:25:11 +0000 (20:25 +0000)]
Fix the way 'factor' behaves when using OpenSSL to match the description
of how it works when not compiled with OpenSSL.

Also, allow users to specify a hexadecimal number by using a prefix of
'0x'.  Before this, users could only specify a hexadecimal value if that
value included a hex digit ('a'-'f') in the value.

PR: 243136
Submitted by: Steve Kargl
Reviewed by: gad
MFC after: 3 weeks

4 years agoFix race when accepting TCP connections.
tuexen [Sun, 12 Jan 2020 17:52:32 +0000 (17:52 +0000)]
Fix race when accepting TCP connections.

When expanding a SYN-cache entry to a socket/inp a two step approach was
taken:
1) The local address was filled in, then the inp was added to the hash
   table.
2) The remote address was filled in and the inp was relocated in the
   hash table.
Before the epoch changes, a write lock was held when this happens and
the code looking up entries was holding a corresponding read lock.
Since the read lock is gone away after the introduction of the
epochs, the half populated inp was found during lookup.
This resulted in processing TCP segments in the context of the wrong
TCP connection.
This patch changes the above procedure in a way that the inp is fully
populated before inserted into the hash table.

Thanks to Paul <devgs@ukr.net> for reporting the issue on the net@
mailing list and for testing the patch!

Reviewed by: rrs@
MFC after: 1 week
Sponsored by: Netflix, Inc.
Differential Revision: https://reviews.freebsd.org/D22971

4 years agond6_rtr: constantly use __func__ for nd6log()
bz [Sun, 12 Jan 2020 17:41:09 +0000 (17:41 +0000)]
nd6_rtr: constantly use __func__ for nd6log()

Over time one or two hard coded function names did not match the
actual function anymore.  Consistently use __func__ for nd6log() calls
and re-wrap/re-format some messages for consitency.

MFC after: 2 weeks

4 years agond6_rtr: make nd6_prefix_onlink() static
bz [Sun, 12 Jan 2020 16:58:21 +0000 (16:58 +0000)]
nd6_rtr: make nd6_prefix_onlink() static

nd6_prefix_onlink() is not used anywhere outside nd6_rtr.c.  Stop
exporting it and make it file local static.

4 years agoFix division by zero issue.
tuexen [Sun, 12 Jan 2020 15:45:27 +0000 (15:45 +0000)]
Fix division by zero issue.

Thanks to Stas Denisov for reporting the issue for the userland stack
and providing a fix.

MFC after: 3 days

4 years agodd kern_getpriority(), make Linuxulator use it.
trasz [Sun, 12 Jan 2020 14:25:44 +0000 (14:25 +0000)]
dd kern_getpriority(), make Linuxulator use it.

Reviewed by: kib, emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D22842

4 years agoAdd kern_setpriority(), use it in Linuxulator.
trasz [Sun, 12 Jan 2020 13:38:51 +0000 (13:38 +0000)]
Add kern_setpriority(), use it in Linuxulator.

Reviewed by: kib
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D22841

4 years agoTighten FAT checks and fix off-by-one error in corner case.
delphij [Sun, 12 Jan 2020 06:13:52 +0000 (06:13 +0000)]
Tighten FAT checks and fix off-by-one error in corner case.

sbin/fsck_msdosfs/fat.c:
 - readfat:
    * Only truncate out-of-range cluster pointers (1, or greater than
      NumClusters but smaller than CLUST_RSRVD), as the current cluster
      may contain some data. We can't fix reserved cluster pointers at
      this pass, because we do no know the potential cluster preceding
      it.
    * Accept valid cluster for head bitmap. This is a no-op, and mainly
      to improve code readability, because the 1 is already handled in
      the previous else if block.
 - truncate_at: absorbed into checkchain.
 - checkchain: save the previous node we have traversed in case that we
   have a chain that ends with a special (>= CLUST_RSRVD) cluster, or is
   free. In these cases, we need to truncate at the cluster preceding the
   current cluster, as the current cluster contains a marker instead of
   a next pointer and can not be changed to CLUST_EOF (the else case can
   happen if the user answered "no" at some point in readfat()).
 - clearchain: correct the iterator for next cluster so that we don't
   stop after clearing the first cluster.
 - checklost: If checkchain() thinks the chain have no cluster, it
   doesn't make sense to reconnect it, so don't bother asking.

Reviewed by: kevlo
MFC after: 24 days
X-MFC-With: r356313
Differential Revision: https://reviews.freebsd.org/D23065

4 years agoAdd "panicked" boolean which can be tested instead of panicstr
mjg [Sun, 12 Jan 2020 06:09:10 +0000 (06:09 +0000)]
Add "panicked" boolean which can be tested instead of panicstr

The test is performed all the time and reading entire panicstr to do it
wastes space.

4 years agoAdd KERNEL_PANICKED macro for use in place of direct panicstr tests
mjg [Sun, 12 Jan 2020 06:07:54 +0000 (06:07 +0000)]
Add KERNEL_PANICKED macro for use in place of direct panicstr tests

4 years agosysctl: add missing CLTFLAG_MPSAFE annotation to CONST_STRING
mjg [Sun, 12 Jan 2020 05:25:06 +0000 (05:25 +0000)]
sysctl: add missing CLTFLAG_MPSAFE annotation to CONST_STRING

4 years agovm: add missing CLTFLAG_MPSAFE annotations
mjg [Sun, 12 Jan 2020 05:08:57 +0000 (05:08 +0000)]
vm: add missing CLTFLAG_MPSAFE annotations

This covers all vm/* files.

4 years agodtrace: add missing CLTFLAG_MPSAFE annotations
mjg [Sun, 12 Jan 2020 04:53:22 +0000 (04:53 +0000)]
dtrace: add missing CLTFLAG_MPSAFE annotations

4 years agozfs: add missing CLTFLAG_MPSAFE annotations
mjg [Sun, 12 Jan 2020 04:53:01 +0000 (04:53 +0000)]
zfs: add missing CLTFLAG_MPSAFE annotations

4 years agoMakefile.inc1: push /usr/libexec into the BPATH/TMPPATH
kevans [Sun, 12 Jan 2020 04:18:36 +0000 (04:18 +0000)]
Makefile.inc1: push /usr/libexec into the BPATH/TMPPATH

${WORLDTMP}/legacy/usr/libexec will only have libexec/ bits that we've
pushed as bootstrap tools, so this is generally safe to include prior to
PATH. The following are the ramifications of this change:

- BPATH addition gets us at least bootstrap flua in WMAKEENV path for
  buildenv, for those earlier systems where it's bootstrapped still

- Reworked the sysent target to just set PATH and let it get worked out in
  src.lua.mk or individual sysent makefiles -- this gives us back the
  ability to overwrite LUA_CMD and use a different/external lua for these
  targets.  sysent can also now work cleanly in buildenv.

- tools/build/Makefile will now symlink the host flua into build's host
  tools so that the above can work without needing to add the host's
  /usr/libexec explicitly into TMPPATH.

Reviewed by: arichardson, brooks, imp (all slightly earlier version)
Differential Revision: https://reviews.freebsd.org/D22464

4 years agoregulator: small enhancements to regulator_shutdown
kevans [Sun, 12 Jan 2020 04:07:03 +0000 (04:07 +0000)]
regulator: small enhancements to regulator_shutdown

Highlights:

- Exit early if we're not disabling unused regulators; there's no need to
  take the regulator topology lock and re-evaluate this every iteration, as
  it's not going to change.
- Don't emit a notice that we're shutting down a regulator if it's not
  enabled, to reduce noise.
- Mention the outcome of the shutdown, to aide debugging and easily let
  developer/user collect list of regulators we actually shutdown to
  determine problematic one.

Reviewed by: manu
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D22213

4 years agovfs: only recalculate watermarks when limits are changing
mjg [Sat, 11 Jan 2020 23:00:57 +0000 (23:00 +0000)]
vfs: only recalculate watermarks when limits are changing

Previously they would get recalculated all the time, in particular in:
getnewvnode -> vcheckspace -> vspace

4 years agovfs: deduplicate vnode allocation logic
mjg [Sat, 11 Jan 2020 22:59:44 +0000 (22:59 +0000)]
vfs: deduplicate vnode allocation logic

This creates a dedicated routine (vn_alloc) to allocate vnodes.

As a side effect code duplicationw with getnewvnode_reserve is eleminated.

Add vn_free for symmetry.

4 years agovfs: prealloc vnodes in getnewvnode_reserve
mjg [Sat, 11 Jan 2020 22:58:14 +0000 (22:58 +0000)]
vfs: prealloc vnodes in getnewvnode_reserve

Having a reserved vnode count does not guarantee that getnewvnodes wont
block later. Said blocking partially defeats the purpose of reserving in
the first place.

Preallocate instaed. The only consumer was always passing "1" as count
and never nesting reservations.

4 years agovfs: incomplete pass at converting more ints to u_long
mjg [Sat, 11 Jan 2020 22:56:20 +0000 (22:56 +0000)]
vfs: incomplete pass at converting more ints to u_long

Most notably numvnodes and freevnodes were u_long, but parameters used to
govern them remained as ints.

4 years agovfs: add missing CLTFLA_MPSAFE annotations
mjg [Sat, 11 Jan 2020 22:55:12 +0000 (22:55 +0000)]
vfs: add missing CLTFLA_MPSAFE annotations

This covers all kern/vfs_*.c files.

4 years agopowerpc/mpc85xx: Fix localbus child reg property decoding
jhibbits [Sat, 11 Jan 2020 22:29:44 +0000 (22:29 +0000)]
powerpc/mpc85xx: Fix localbus child reg property decoding

r302340, as an attempt to fix the localbus child handling post-rman change,
actually broke child resource allocation, due to typos in
fdt_lbc_reg_decode().  This went unnoticed because there aren't any drivers
currently in tree that use localbus.

4 years agoPacify gcc.
glebius [Sat, 11 Jan 2020 20:07:30 +0000 (20:07 +0000)]
Pacify gcc.

Reported by: rlibby

4 years agoin6_mcast: make in6_joingroup_locked() static
bz [Sat, 11 Jan 2020 18:55:12 +0000 (18:55 +0000)]
in6_mcast: make in6_joingroup_locked() static

in6_joingroup_locked() is only used file-local. No need to export it
hance make it static.

4 years agoarm64: allwinner: dtso: Add spi0 spigen DTSO
manu [Sat, 11 Jan 2020 18:36:10 +0000 (18:36 +0000)]
arm64: allwinner: dtso: Add spi0 spigen DTSO

This overlays can be used on A64 board to use spigen and spi(8)
on the spi0 pins.

Tested On:  Pine64-LTS, A64-Olinuxino

Submitted by: Gary Otten <gdotten@gmail.com>

4 years agoCorrect off-by-two issue when determining FAT type.
delphij [Sat, 11 Jan 2020 17:41:20 +0000 (17:41 +0000)]
Correct off-by-two issue when determining FAT type.

In the code we used NumClusters as the upper (non-inclusive) boundary
of valid cluster number, so the actual value was 2 (CLUST_FIRST) more
than the real number of clusters. This causes a FAT16 media with
65524 clusters be treated as FAT32 and might affect FAT12 media with
4084 clusters as well.

To fix this, we increment NumClusters by CLUST_FIRST after the type
determination.

PR: 243179
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D23082

4 years agoMake sure the VNET is properly set when reaping mbufs in ipoib.
hselasky [Sat, 11 Jan 2020 12:02:16 +0000 (12:02 +0000)]
Make sure the VNET is properly set when reaping mbufs in ipoib.
Else the following panic may happen:

panic()
icmp_error()
ipoib_cm_mb_reap()
linux_work_fn()
taskqueue_run_locked()
taskqueue_thread_loop()
fork_exit()
fork_trampoline()

Submitted by: Andreas Kempe <kempe@lysator.liu.se>
MFC after: 1 week
Sponsored by: Mellanox Technologies

4 years agoRevert r356598 for now because it breaks some AMD based XHCI controllers.
hselasky [Sat, 11 Jan 2020 11:38:02 +0000 (11:38 +0000)]
Revert r356598 for now because it breaks some AMD based XHCI controllers.

Reported by: jkim @
MFC after: 1 week
Sponsored by: Mellanox Technologies

4 years agortld: clean up Makefile.
kib [Sat, 11 Jan 2020 09:18:58 +0000 (09:18 +0000)]
rtld: clean up Makefile.

Move all MD statements into $MACHINE_ARCH/Makefile.inc.
Unconditionally apply version script to rtld, the interpreter is not
functional without it for long time.

Reviewed by: brooks, emaste
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D23083

4 years agoStop prepending prefix to the result of realpath(3).
kib [Sat, 11 Jan 2020 09:08:02 +0000 (09:08 +0000)]
Stop prepending prefix to the result of realpath(3).

The path is already absolute.

Noted and reviewed by: rstone
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D23121

4 years agoApply typo fix from NetBSD, we have already applied all NetBSD changes so
delphij [Sat, 11 Jan 2020 04:02:40 +0000 (04:02 +0000)]
Apply typo fix from NetBSD, we have already applied all NetBSD changes so
update the NetBSD tag while I'm there.

MFC after: 2 weeks

4 years agoRequire FAT to occupy at least one sector.
delphij [Sat, 11 Jan 2020 03:59:06 +0000 (03:59 +0000)]
Require FAT to occupy at least one sector.

Obtained from: Android https://r.android.com/1205830
MFC after: 3 days

4 years agoWhen a read error occurs while fetching a directory block to delete
mckusick [Sat, 11 Jan 2020 03:18:47 +0000 (03:18 +0000)]
When a read error occurs while fetching a directory block to delete
or rename an entry in it, properly reset the link count of the inode
associated with the entry that was to have been changed.

Tested by: Peter Holm
MFC after: 7 days

4 years agoUpdate ELFOSABI_* constants with OpenVOS.
pfg [Sat, 11 Jan 2020 01:44:55 +0000 (01:44 +0000)]
Update ELFOSABI_* constants with OpenVOS.

Reference:
https://www.sco.com/developers/gabi/latest/ch4.eheader.html

4 years agoMFV: r356607
jkim [Fri, 10 Jan 2020 22:49:14 +0000 (22:49 +0000)]
MFV: r356607

Import ACPICA 20200110.

4 years agocamdd: initialize devs earlier
kevans [Fri, 10 Jan 2020 22:20:23 +0000 (22:20 +0000)]
camdd: initialize devs earlier

GCC9 points out that devs may be used initialized after the bailout label;
in-fact, if num_io_opts != 2 then it is. Move the initialization up a little
bit.

Reviewed by: ken
MFC after: 3 days

4 years agosrc.opts.mk: force KERBEROS_SUPPORT off where KERBEROS forced off
emaste [Fri, 10 Jan 2020 22:00:39 +0000 (22:00 +0000)]
src.opts.mk: force KERBEROS_SUPPORT off where KERBEROS forced off

Explicitly setting WITHOUT_KERBEROS implies WITHOUT_KERBEROS_SUPPORT,
but previously other cases that forced KERBEROS off (such as
WITHOUT_CRYPT) did not also set KERBEROS_SUPPORT off.  Because the
_SUPPORT dependent options (KERBEROS/KERBEROS_SUPPORT) are processed
before other dependencies (CRYPT/KERBEROS) it's not easy to make this
happen automatically.  Instead just explicitly set KERBEROS_SUPPORT
off where we set KERBEROS off.

Reported by: Michael Dexter's Build Option Survey run

4 years agotests: fusefs: silence remaining unsigned/signed comparison warnings
kevans [Fri, 10 Jan 2020 21:51:27 +0000 (21:51 +0000)]
tests: fusefs: silence remaining unsigned/signed comparison warnings

External GCC turns these into errors; cast to long to silence them.

Reviewed by: asomers
Differential Revision: https://reviews.freebsd.org/D23127

4 years agoAdd pfil(9) hook to vtnet(4).
glebius [Fri, 10 Jan 2020 21:22:03 +0000 (21:22 +0000)]
Add pfil(9) hook to vtnet(4).

The patch could be simplier, using only the second chunk to
vtnet_rxq_eof(), that passes full mbufs to pfil(9). Packet
filter would m_free() them in case of returning PFIL_DROPPED.

However, we pretend to be a hardware driver, so we first try
to pass a memory buffer via PFIL_MEMPTR feature. This is mostly
done for debugging purposes, so that one can experiment in bhyve
with packet filters utilizing same features as a true driver.

4 years agoAdd myself (lbartoletti) as a ports commiter
lbartoletti [Fri, 10 Jan 2020 20:53:58 +0000 (20:53 +0000)]
Add myself (lbartoletti) as a ports commiter
Step 5 (Update Mentor and Mentee Information) from Commiters guide.

I also alphababetize mentees from tcberner.

Approved by: tcberner (mentor)
Differential Revision: https://reviews.freebsd.org/D23125

4 years agoAlways multiple vm.pgcache_zone_max to number of CPUs, and rename it
glebius [Fri, 10 Jan 2020 19:32:08 +0000 (19:32 +0000)]
Always multiple vm.pgcache_zone_max to number of CPUs, and rename it
respectively.  The tunable controls how big is the size of per-cpu
vm page cache.  Previously the value was split for all CPUs in system,
so configuring same value on machines with different count of CPUs
yielded in different cache size available to a particular CPU.

Reviewed by: markj
Obtained from: Netflix

4 years agoarm: allwinner: axp209: Add regnode_status method
manu [Fri, 10 Jan 2020 18:53:14 +0000 (18:53 +0000)]
arm: allwinner: axp209: Add regnode_status method

This allow consumers to check if the regulator is enable or not.

MFC after: 1 week

4 years agotwsi: Rework how we handle the i2c messages
manu [Fri, 10 Jan 2020 18:52:14 +0000 (18:52 +0000)]
twsi: Rework how we handle the i2c messages

We use to handle each message separately in i2c_transfer but that cannot
work with message with NOSTOP as it confuses the controller that we disable
the interrupts and start a new message.
Handle every message in the interrupt handler and fire a new start condition
if the previous message have NOSTOP, the controller understand this as a
repeated start.
This fixes booting on Allwinner A10/A20 platform where before the i2c controller
used to write 0 to the PMIC register that control the regulators as it though that
this was the continuation of the write message.

Tested on:   A20 BananaPi, Cubieboard 1 (kevans)
Reported by: kevans
MFC after: 1 month

4 years agoSet .ORDER for makesyscalls generated files
kevans [Fri, 10 Jan 2020 18:24:17 +0000 (18:24 +0000)]
Set .ORDER for makesyscalls generated files

When either makesyscalls.lua or syscalls.master changes, all of the
${GENERATED} targets are now out-of-date. With make jobs > 1, this means we
will run the makesyscalls script in parallel for the same ABI, generating
the same set of output files.

Prior to r356603 , there is a large window for interlacing output for some
of the generated files that we were generating in-place rather than staging
in a temp dir. After that, we still should't need to run the script more
than once per-ABI as the first invocation should update all of them. Add
.ORDER to do so cleanly.

Reviewed by: brooks
Discussed with: sjg
Differential Revision: https://reviews.freebsd.org/D23099

4 years agomakesyscalls.lua: generate all files in /tmp, write into place at the end
kevans [Fri, 10 Jan 2020 18:22:14 +0000 (18:22 +0000)]
makesyscalls.lua: generate all files in /tmp, write into place at the end

This makes makesyscalls.lua more parallel-friendly, or at least not as
hostile to the idea. We get into situations where we're running parallel if
we end up with MAKE_JOBS>1 entering any of the sysent targets, since each
output file is recognized a distinct build step that needs to be executed.

Another commit will add some .ORDER to further improve the situation.

Reported by: jhb
Reviewed by: brooks
Differential Revision: https://reviews.freebsd.org/D23098

4 years agoinetd: two more nits
kevans [Fri, 10 Jan 2020 14:43:57 +0000 (14:43 +0000)]
inetd: two more nits

Use __COPYRIGHT for copyright to simply either embed it via .ident or have
it properly marked __unused

Move an ipsec reference to IPSEC

4 years agoinetd: free WITHOUT_INET6_SUPPORT build of warnings
kevans [Fri, 10 Jan 2020 14:40:04 +0000 (14:40 +0000)]
inetd: free WITHOUT_INET6_SUPPORT build of warnings

If inetd is compiled without inet6 support, we need to error out on
rpc+inet6 services rather than attempting to call into rpc bits with an
uninitialized netid.

v4bind is only used with INET6 support, so move it under the proper #ifdefs
with v6bind.

Reported by: Pavel Timofeev <timp87 gmail com>
MFC after: 3 days

4 years agoa10_ahci: grab the target-supply regulator and enable it
kevans [Fri, 10 Jan 2020 14:09:59 +0000 (14:09 +0000)]
a10_ahci: grab the target-supply regulator and enable it

This regulator is marked regulator-boot-on, but it will get shutdown if it's
not actually used/enabled by a driver. This should fix sata on the
cubieboard{1,2}.

Reported by: Ray White @ UWaterloo
Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D23112

4 years agoCheck the XHCI endpoint state before stopping any endpoint.
hselasky [Fri, 10 Jan 2020 09:32:44 +0000 (09:32 +0000)]
Check the XHCI endpoint state before stopping any endpoint.

This avoids getting the XHCI_TRB_ERROR_CONTEXT_STATE error code from the XHCI
controller when the endpoint is disabled or already stopped.

Suggested by: Shichun.Ma@dell.com
MFC after: 1 week
Sponsored by: Mellanox Technologies

4 years agoDefine the XHCI endpoint states.
hselasky [Fri, 10 Jan 2020 09:07:43 +0000 (09:07 +0000)]
Define the XHCI endpoint states.

MFC after: 1 week
Sponsored by: Mellanox Technologies

4 years agoInclude human-readable list of rtm flags along with bitmask in error messages
melifaro [Fri, 10 Jan 2020 08:54:46 +0000 (08:54 +0000)]
Include human-readable list of rtm flags along with bitmask in error messages
 for rtsock tests.

MFC after: 2 weeks

4 years agopowerpc: Prevent infinite loop in moea_sync_icache()
jhibbits [Fri, 10 Jan 2020 04:13:16 +0000 (04:13 +0000)]
powerpc: Prevent infinite loop in moea_sync_icache()

This applies r344049 to the 32-bit pmap.

Reported by: Mark Millard <marklmi_yahoo.com>

4 years agoReplace inline assembly with rdtime macro
mhorne [Fri, 10 Jan 2020 03:17:28 +0000 (03:17 +0000)]
Replace inline assembly with rdtime macro

This macro is used elsewhere and is slightly cleaner. NFC.

4 years agopowerpc: Mark cpu_feature-based sysctls as MP_SAFE
jhibbits [Fri, 10 Jan 2020 03:16:40 +0000 (03:16 +0000)]
powerpc: Mark cpu_feature-based sysctls as MP_SAFE

hw.floatingpoint and hw.altivec are effectively runtime constants (bits from
the cpu_feature bitfield), so don't need Giant, or any locking for that
matter.

4 years agopowerpc/powernv: Un-Giant-ify opal_nvram driver
jhibbits [Fri, 10 Jan 2020 01:24:49 +0000 (01:24 +0000)]
powerpc/powernv: Un-Giant-ify opal_nvram driver

It may be possible to make this completely lock free, but for now it's using
a statically allocated bounce buffer in the softc, so it needs to be
guarded.

4 years agoRemove scary-looking printf output that happens when you kldload dtrace on
ian [Thu, 9 Jan 2020 22:51:37 +0000 (22:51 +0000)]
Remove scary-looking printf output that happens when you kldload dtrace on
arm.  Replace it with a comment block explaining why the function is empty
on 32-bit arm.

4 years agoloader: bioscd probe can get sector size 0
tsoome [Thu, 9 Jan 2020 21:21:08 +0000 (21:21 +0000)]
loader: bioscd probe can get sector size 0

With buggy BIOS, it may happen we get sector size reported 0 for cd, and then
the default 512 is used, which is quite wrong.

PR: 238749

4 years agolibc: Fix a few bugs in the xlocale collation code.
markj [Thu, 9 Jan 2020 20:49:26 +0000 (20:49 +0000)]
libc: Fix a few bugs in the xlocale collation code.

- Fix checks for mmap() failures. [1]
- Set the "map" and "maplen" fields of struct xlocale_collate so that
  the table destructor actually does something.
- Free an already-mapped collation file before loading a new one into
  the global table.
- Harmonize the prototype and definition of __collate_load_tables_l() by
  adding the "static" qualifier to the latter.

PR: 243195
Reported by: cem [1]
Reviewed by: cem, yuripv
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D23109

4 years agoCatch up with Clang 9.0.
jkim [Thu, 9 Jan 2020 20:07:38 +0000 (20:07 +0000)]
Catch up with Clang 9.0.

4 years agodwc_otg: fix fdt attachment for newer bcm2708-usb nodes
kevans [Thu, 9 Jan 2020 19:22:11 +0000 (19:22 +0000)]
dwc_otg: fix fdt attachment for newer bcm2708-usb nodes

The newer versions of RPi FDT flipped the order of the interrupts
specification and added an 'interrupt-names' property for driver aide in
finding the correct interrupt, rather than assuming the positions. Use it if
it's available, or fallback to the old method if there is no interrupt-names
property with a usb value.

This has been tested with both old RPi3B FDT and new RPi3B FDT, USB again
works on the latter.

Reported by: Tom Yan <tom.ty89 gmail com>
MFC after: 3 days

4 years agoUMA: Don't destroy zones after the system shutdown process starts.
markj [Thu, 9 Jan 2020 19:17:42 +0000 (19:17 +0000)]
UMA: Don't destroy zones after the system shutdown process starts.

Some kernel subsystems, notably ZFS, will destroy UMA zones from a
shutdown eventhandler.  This causes the zone to be drained.  For slabs
that are mapped into KVA this can be very expensive and so it needlessly
delays the shutdown process.

Add a new state to the "booted" variable, BOOT_SHUTDOWN.  Once
kern_reboot() starts invoking shutdown handlers, turn uma_zdestroy()
into a no-op, provided that the zone does not have a custom finalization
routine.

PR: 242427
Reviewed by: jeff, kib, rlibby
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D23066

4 years agobcm2835_vcbus: hide 'checking root' messages under bootverbose
kevans [Thu, 9 Jan 2020 19:13:09 +0000 (19:13 +0000)]
bcm2835_vcbus: hide 'checking root' messages under bootverbose

4 years agoAdd stricter checking on mac key lengths.
jhb [Thu, 9 Jan 2020 18:29:59 +0000 (18:29 +0000)]
Add stricter checking on mac key lengths.

Negative lengths are always invalid.  The key length should also
be zero for hash algorithms that do not accept a key.

admbugs: 949
Reported by: Yuval Kanarenstein <yuvalk@ssd-disclosure.com>
Reviewed by: cem
MFC after: 1 week
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D23094

4 years agoAdd note to remind me there are three choices for arm32 floating point.
imp [Thu, 9 Jan 2020 18:14:48 +0000 (18:14 +0000)]
Add note to remind me there are three choices for arm32 floating point.

hard use floating point hardware, pass registers to functions in
floating point registers.
softfp use floating point hardware, but pass registers to functions
in integer registers.
soft do floating point calcuations without using floating point
hardware. Pass arguments in integer registers.

FreeBSD 11 and newer assumes hard. 10 and earlier assumed softfp.  We have no
real support, at the moment, for soft. It's untested, though, if softfp still
works.

Add a note here since this is a whack-a-doodle combination relative to all other
platforms.

softfp is likely to go away in the future because it was retained for people
using FreeBSD 10 + armv6 needing to transition more slowly from softfp -> hard
than the project. It likely is no longer needed, and may be getting in the
way of people needing 'soft' support.

4 years agoAdd fibnum, family and vnet pointer to each rib head.
melifaro [Thu, 9 Jan 2020 17:21:00 +0000 (17:21 +0000)]
Add fibnum, family and vnet pointer to each rib head.

Having metadata such as fibnum or vnet in the struct rib_head
 is handy as it eases building functionality in the routing space.
This change is required to properly bring back route redirect support.

Reviewed by: bz
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D23047

4 years agoConst-poison the cam_sim_* convenience accessor functions.
imp [Thu, 9 Jan 2020 16:34:54 +0000 (16:34 +0000)]
Const-poison the cam_sim_* convenience accessor functions.

These don't modify the cam_sim, so make that parameter const.

4 years agoFix typo: MANGAEMENT_PROTOCOL_OUT -> MANAGEMENT_PROTOCOL_OUT.
arrowd [Thu, 9 Jan 2020 15:21:42 +0000 (15:21 +0000)]
Fix typo: MANGAEMENT_PROTOCOL_OUT -> MANAGEMENT_PROTOCOL_OUT.

Approved by: allanjude

4 years agoChange malloc_domain() to return the allocation size to the caller.
markj [Thu, 9 Jan 2020 15:02:48 +0000 (15:02 +0000)]
Change malloc_domain() to return the allocation size to the caller.

Otherwise the malloc type accounting in malloc_domainset(9) is wrong
after r355203.

Reviewed by: rlibby
Reported by: kaktus
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D23095

4 years agolagg: Further cleanup of the rr_limit option.
markj [Thu, 9 Jan 2020 14:58:41 +0000 (14:58 +0000)]
lagg: Further cleanup of the rr_limit option.

Add an option flag so that arbitrary updates to a lagg's configuration
do not clear sc_stride.  Preseve compatibility for old ifconfig
binaries.  Update ifconfig to use the new flag and improve the casting
used when parsing the option parameter.

Modify the RR transmit function to avoid locklessly reading sc_stride
twice.  Ensure that sc_stride is always 1 or greater.

Reviewed by: hselasky
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D23092

4 years agoRevert r356515 - add LLVM_LIBUNWIND back to sparc64 BROKEN_OPTIONS
emaste [Thu, 9 Jan 2020 14:12:57 +0000 (14:12 +0000)]
Revert r356515 - add LLVM_LIBUNWIND back to sparc64 BROKEN_OPTIONS

r356552 reverted the untested build fix for LLVM libunwind on sparc64,
so mark it broken again.

4 years agorevert r356513: libunwind: untested attempt to fix sparc64 build
emaste [Thu, 9 Jan 2020 14:10:11 +0000 (14:10 +0000)]
revert r356513: libunwind: untested attempt to fix sparc64 build

The patch is untested and is almost certainly insufficient. Per the
author's request, revert until someone with access to sparc64 hardware
can test and report.

4 years agoarp(8): avoid segfaulting due to out-of-bounds memory access
eugen [Thu, 9 Jan 2020 11:58:26 +0000 (11:58 +0000)]
arp(8): avoid segfaulting due to out-of-bounds memory access

Fix obvious mistake that sometimes results in reading memory
past end of an array.

PR: 240825
MFC after: 1 week

4 years agoAdd atomic_testandset/clear on arm64.
andrew [Thu, 9 Jan 2020 10:26:36 +0000 (10:26 +0000)]
Add atomic_testandset/clear on arm64.

These will reportedly be used in future uma changes.

MFC after: 2 weeks
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D23019

4 years agortld: Return error if $ORIGIN for a dlopen-ed library cannot be resolved ...
kib [Thu, 9 Jan 2020 10:05:45 +0000 (10:05 +0000)]
rtld: Return error if $ORIGIN for a dlopen-ed library cannot be resolved ...

instead of killing the process.  The same behaviour of terminating
image activation if the $ORIGIN cannot be resolved for the main
object, is kept.

Reported by: Greg V <greg@unrelenting.technology>
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D23053

4 years agoResolve relative argv0 for direct exec mode to absolute path for AT_EXECPATH.
kib [Thu, 9 Jan 2020 10:00:24 +0000 (10:00 +0000)]
Resolve relative argv0 for direct exec mode to absolute path for AT_EXECPATH.

We know the binary relative name and can reliably calculate cwd path.
Because realpath(3) was already linked into ld-elf.so.1, reuse it
there to resolve dots and dotdots making the path more canonical.

Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D23014

4 years agoFix a XHCI driver issue with Intel's Gemini Lake SOC.
hselasky [Thu, 9 Jan 2020 09:29:24 +0000 (09:29 +0000)]
Fix a XHCI driver issue with Intel's Gemini Lake SOC.

Do not configure any endpoint twice, but instead keep track of which
endpoints are configured on a per device basis, and use an evaluate
endpoint context command instead. When changing the configuration make
sure all endpoints get deconfigured and the configured endpoint mask
is reset.

This fixes an issue where an endpoint might stop working if there is
an error and the endpoint needs to be reconfigured as a part of the
error recovery mechanism in the FreeBSD USB stack.

Tested by: Shichun.Ma@dell.com
MFC after: 1 week
Sponsored by: Mellanox Technologies

4 years agokern/Makefile: systrace_args.c is also generated
kevans [Thu, 9 Jan 2020 06:10:25 +0000 (06:10 +0000)]
kern/Makefile: systrace_args.c is also generated

4 years agomd(4): improve documentation of preloading
kevans [Thu, 9 Jan 2020 04:39:37 +0000 (04:39 +0000)]
md(4): improve documentation of preloading

It's not immediately clear by what mechanism loader(8) will be loading the
preloaded file. Specifically name-drop loader.conf(5) with a pointer to the
module loading section and a description of what the 'name' should look
like, because that certainly isn't clear from the loader.conf(5) standpoint.

The default loader.conf already has a pointer to md(4) where it appears and
the reference to loader.conf in the new version of this manpage should make
it more clear that this is where one should look for information.

Reported by: swills
Reviewed by: swills, manpages (bcr)
With revision by: imp
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D22844

4 years agostand/fdt: Scale blob size better as overlays apply
kevans [Thu, 9 Jan 2020 04:34:42 +0000 (04:34 +0000)]
stand/fdt: Scale blob size better as overlays apply

Currently, our overlay blob will grow to include the size of the complete
overlay blob we're applying. This doesn't scale very well with a lot of
overlays- they tend to include a lot of overhead, and they will generally
only add a fraction of their total size to the blob they're being applied
to.

To combat this, pack the blob as we apply new overlays and keep track of how
many overlays we've applied. Only ubldr has any fixups to be applied after
overlays, so we only need to re-pad the blob in ubldr. Presumably the
allocation won't fail since we just did a lot worse in trying to apply
overlays and succeeded.

I have no intention of removing the padding in make_dtb.sh. There might be
an argument to be had over whether it should be configurable, since ubldr
*is* the only loader that actually has fixups to be applied and we can do
this at runtime, but I'm not too concerned about this.

This diff has been sitting in Phabricator for a year and a half, but I've
decided to flush it as it does make sure that we're scaling the blob
appropriately and leave room at the end for fixups in case of some freak
circumstance where applying overlays leaves us with a blob of insufficient
size.

Reviewed by: gonzo (a long time ago)
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D14133