Start sentences on new lines.
Fix return value for setcontext and swapcontext.
Move snmp_hast manual to section 3, where all other manual pages for
bsnmp modules are located.

Section 3 (Library Functions) looks wrong for this manual page, which
contains only module description, that is why initially it was located
to section 8 (System Manager's Manual).  On the other hand manual
pages for all other bsnmpd modules are already located in the section
3, and having all pages in one section looks more consistent.  Also,
currently, similarly to manuals for other modules, snmp_hast manual
contains LIBRARY section, which is not good style for section 8.

Requested by:	joel
X-MFC with:	r250379
wordexp(): Simplify code by deferring work to sh.
Remove duplicated copies of various NetBSD compatibility shims used by
makefs and use libnetbsd, contrib/mtree, and contrib/mknod instead.

Sponsored by:	DARPA, AFRLo
MFC after:	1 month
Update the holding buffer locking for EDMA.
Item 1 in r248830 causes earlier exits from the sendfile(2), before
all requested data was sent.  The reason is that xfsize <= 0 condition
must not be tested at all if space == loopbytes.  Otherwise, the done
is set to 1, and sendfile(2) is aborted too early.

Instead of moving the condition to exiting the inner loop after the
xfersize check, directly check for the completed transfer before the
testing of the available space in the socket buffer, and revert item 1
of r248830.  It is arguably another bug to sleep waiting for socket
buffer space (or return EAGAIN for non-blocking socket) if all bytes
are already transferred.

Reported by:	pho
Discussed with:	scottl, gibbs
Tested by:	scottl (stable/9 backport), pho
Fix a bug that would cause the category menu to display the wrong value
for number of packages available in the "All" category. Problem caused by
re-using a variable that was still needed; fixed by variable name change.
Add option WITNESS_NO_VNODE to suppress printing LORs between VNODE
locks. To support this, VNODE locks are created with the LK_IS_VNODE
flag. This flag is propagated down using the LO_IS_VNODE flag.

Note that WITNESS still records the LOR. Only the printing and the
optional entering into the kernel debugger is bypassed with the
WITNESS_NO_VNODE option.
posix_spawn_file_actions_addopen(3): Correct error for bad file descriptor.

As per POSIX.1-2008, posix_spawn_file_actions_add* return [EBADF] if a file
descriptor is negative, not [EINVAL]. The bug was only in the manual page;
the code is correct.

MFC after:	1 week
simplify the code to initialize the RDT while in netmap mode.
if_lem.c:  make sure that lem_rxeof() can drain the entire rx queue
	irrespective of the setting of lem_rx_process_limit, while
	giving a chance to the taskqueue scheduler to act after
	each chunk.
	This makes lem_rxeof similar to the one in if_em.c and if_igb.c .

if_lem.c and if_em.c: add a sysctl to manually configure the
	'itr' moderation register.

Approved by:	Jack Vogel
Correct the type for the literal used on the left side of the shift up
to 63 bit positions.

Do not fill the save area and do not set the saved bit in the xstate
bit vector for the state which is not marked as enabled in xsave_mask.

Reported and tested by:	Jim Ohlstein <jim@ohlste.in>
MFC after:	3 days
Revision 233677 broke certain machines.  Specifically, if the firmware/BIOS
assigned conflicting ranges to BARs then leaving the BARs alone could
result in one device stealing mmio accesses intended to go to a second
device.  Prior to 233677 the PCI bus driver attempted to handle this case
by clearing the BAR to 0 depending on BARs based at 0 not decoding (which
is not guaranteed to be true).  Now when a conflicting BAR is detected the
following steps are taken:

 1) If hw.pci.realloc_bars (a new tunable) is enabled (default is enabled),
    then ignore the current BAR setting from the firmware and attempt to
    allocate a fresh resource range for the BAR.

 2) If 1) failed (or was disabled), disable decoding for the relevant
    BAR type (e.g. disable mem decoding for a memory BAR) and emit a
    warning if booting verbose.

Tested by:	Alex Keda <admin@lissyara.su>
MFC after:	1 week
Add some missing arge MDIO hints.

Submitted by:	Luiz Otavio O Souza <loos.br@gmail.com>
MFp4 CH=227440:

  Convert the structures to C99 style initialisation, which makes it
  a lot easier to check that all of them are set and to generate a
  derived template from them.

Sponsored by:	DARPA, AFRL
MFC after:	2 weeks
posix_spawn_file_actions_adddup2(3): Document difference with dup2().

The ability to clear a file descriptor's close-on-exec flag via
posix_spawn_file_actions_adddup2() is in fact proposed in Austin Group issue
#411.

MFC after:	1 week
Fix two typos

Reviewed by:	jilles
Retire write-only PCB_GS32BIT pcb flag on amd64.
Both my EBH5200 and GE WANIC 6354 have a RTC as well. It looks from
the Linux tree that they always include this chip in their FDT, so
make support for the ds1337 opt-out rather than opt-in. Now my boards
boot with the correct time.