Mark Johnston 54a3a11421 Provide separate accounting for user-wired pages. ... Historically we have not distinguished between kernel wirings and user wirings for accounting purposes. User wirings (via mlock(2)) were subject to a global limit on the number of wired pages, so if large swaths of physical memory were wired by the kernel, as happens with the ZFS ARC among other things, the limit could be exceeded, causing user wirings to fail. The change adds a new counter, v_user_wire_count, which counts the number of virtual pages wired by user processes via mlock(2) and mlockall(2). Only user-wired pages are subject to the system-wide limit which helps provide some safety against deadlocks. In particular, while sources of kernel wirings typically support some backpressure mechanism, there is no way to reclaim user-wired pages shorting of killing the wiring process. The limit is exported as vm.max_user_wired, renamed from vm.max_wired, and changed from u_int to u_long. The choice to count virtual user-wired pages rather than physical pages was done for simplicity. There are mechanisms that can cause user-wired mappings to be destroyed while maintaining a wiring of the backing physical page; these make it difficult to accurately track user wirings at the physical page layer. The change also closes some holes which allowed user wirings to succeed even when they would cause the system limit to be exceeded. For instance, mmap() may now fail with ENOMEM in a process that has called mlockall(MCL_FUTURE) if the new mapping would cause the user wiring limit to be exceeded. Note that bhyve -S is subject to the user wiring limit, which defaults to 1/3 of physical RAM. Users that wish to exceed the limit must tune vm.max_user_wired. Reviewed by: kib, ngie (mlock() test changes) Tested by: pho (earlier version) MFC after: 45 days Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D19908		2019-05-13 16:38:48 +00:00
..
addr2line
alias
apply
ar	ar: shuffle symbol offsets during conversion for 32-bit ar archives	2019-04-22 19:55:47 +00:00
asa
at
atm
awk
banner
basename
bc	Sync with OpenBSD.	2019-01-12 12:35:02 +00:00
biff
bluetooth
bmake	Merge bmake-20181221	2018-12-23 01:05:52 +00:00
brandelf	cap_fileargs: chase r346315, update fileargs_init in consumers	2019-04-17 16:18:14 +00:00
bsdcat
bsdiff	bspatch: simplify capsicumization	2018-11-07 21:01:14 +00:00
bzip2
bzip2recover
c89
c99
caesar
calendar	Update the spelling of my name	2019-04-22 17:52:46 +00:00
cap_mkdb
chat
chkey
chpass
cksum
clang	Merge ^/head r344178 through r344512.	2019-02-25 11:59:29 +00:00
cmp	Drop "All rights reserved" from the files I own	2019-03-11 22:23:56 +00:00
col
colldef
colrm
column
comm
compile_et
compress	Fix descriptor/memory leak in compress(1) code	2019-01-18 00:26:25 +00:00
cpio
cpuset
csplit
ctags
ctlstat	Flush stdout after each iteration.	2019-03-06 15:19:04 +00:00
cut
cxxfilt
dc	Drop "All rights reserved" from the files I own	2019-03-11 22:23:56 +00:00
diff	capsicum: use a new capsicum helpers in tools	2018-11-04 19:24:49 +00:00
diff3	capsicum: use a new capsicum helpers in tools	2018-11-04 19:24:49 +00:00
dirname
dpv
drill
dtc	Fix build issue with clang 8.0.1	2019-05-10 17:05:40 +00:00
du	Update the spelling of my name	2019-04-22 17:52:46 +00:00
ee
elf2aout
elfdump	elfdump: use designated array initialization for note types	2019-01-31 16:49:06 +00:00
enigma
env
etdump
expand
factor
false
fetch
file
file2c
find	Fix whiteout support in find(1)	2019-01-28 02:00:39 +00:00
finger
fmt
fold
fortune	A few corrections and clarifications to r343406.	2019-01-28 19:54:58 +00:00
from
fstat	Print type designator 'D' for the KF_TYPE_DEV files.	2018-12-03 23:42:04 +00:00
fsync
ftp
gcore
gencat
getaddrinfo
getconf	Update the spelling of my name	2019-04-22 17:52:46 +00:00
getent
getopt
gprof
grdc
grep	Fix bsdgrep manpage clobbering grep(1) with default build options	2019-01-09 02:47:07 +00:00
gzip	Correct documentation year.	2019-01-07 08:29:27 +00:00
head	cap_fileargs: chase r346315, update fileargs_init in consumers	2019-04-17 16:18:14 +00:00
hesinfo
hexdump	hexdump(1): Exit gracefully on format strings missing conversion	2019-04-13 16:51:48 +00:00
host
iconv
id
ident
indent	capsicum: use a new capsicum helpers in tools	2018-11-04 19:24:49 +00:00
ipcrm
ipcs	ipcs(1): drop obsolete error checking	2019-02-07 14:29:45 +00:00
iscsictl	iscsictl.8: Add missing flag parameters	2018-12-27 14:44:01 +00:00
join
jot	Fix 'jot -r 0 start end' to work.	2019-04-16 00:41:22 +00:00
kdump	kdump: expand comment on reasons for CAPFAIL_LOOKUP	2019-02-18 03:49:16 +00:00
keylogin
keylogout
killall
ktrace
ktrdump	capsicum: use a new capsicum helpers in tools	2018-11-04 19:24:49 +00:00
lam	The lam(1) man page is unclear about the uppercase versions of the flags	2019-01-04 02:48:43 +00:00
last	A single comma was missing to separate the "see also" items in	2018-10-20 17:22:04 +00:00
lastcomm
ldd	Add an IMPLEMENTATION NOTES section to ldd.1.	2018-10-23 13:49:53 +00:00
leave
less
lessecho
lesskey
lex
limits
locale
localedef	localedef: define characters in "space" class also as "print", except	2018-10-27 23:31:42 +00:00
locate
lock
lockf	lockf(1): return EX_UNAVAILABLE if -n is used and the lock file does not	2019-03-20 07:40:38 +00:00
logger
login
logins
logname
look
lorder
lsvfs
lzmainfo
m4
mail
man	Teach man(1) about C.UTF-8.	2018-11-04 16:58:55 +00:00
mandoc	Suppress old gcc warning about null format string	2019-04-12 18:35:14 +00:00
mesg
minigzip	Move contrib/zlib to sys/contrib/zlib so that we can use it in kernel.	2019-05-08 08:43:15 +00:00
ministat
mkcsmapper
mkcsmapper_static
mkdep
mkesdb
mkesdb_static
mkfifo
mkimg	Don't compress and uuencode the "hexdump -C" output files. Just	2019-03-09 02:03:07 +00:00
mklocale
mkstr
mktemp
mkuzip	Minor cleanup for mkuzip(8) man page.	2019-02-19 20:26:03 +00:00
morse
msgs
mt	Add IBM TS1160 density codes to libmt and the mt(1) man page.	2019-03-04 14:30:37 +00:00
nc
ncal	Do not reference deskutils/cal from cal.1.	2019-03-07 11:09:25 +00:00
netstat	Add stat counter for ipv6 atomic fragments	2019-04-19 17:06:43 +00:00
newgrp
newkey	newkey(8): fix 'tmpname' memory leak (always) and input file descriptor leak	2019-02-08 14:31:44 +00:00
nfsstat	Fix printing of the line that starts with "LocalOpen...".	2019-04-13 23:26:02 +00:00
nice
nl
nm
nohup	Cross-reference nohup(1) and daemon(8).	2018-11-09 13:47:06 +00:00
number
objcopy
ofed
opieinfo
opiekey
opiepasswd
pagesize
pamtest
passwd
paste
patch	patch(1): Exit successfully if we're fed a 0-length patch	2019-03-01 01:20:21 +00:00
pathchk
perror
pom	pom: Fix fencepost bugs.	2018-11-20 00:06:53 +00:00
pr	Drop "All rights reserved" from the files I own	2019-03-11 22:23:56 +00:00
primes	Remove unneeded assert.h (there is no assertion in this file).	2019-01-06 20:42:09 +00:00
printenv
printf
proccontrol	proccontrol(1): Add kpti control mode.	2019-03-16 11:46:48 +00:00
procstat	Update the spelling of my name	2019-04-22 17:52:46 +00:00
protect
quota
random
rctl	rctl: fix sysctl kern.racct.enable use after r341182	2019-04-03 20:37:14 +00:00
readelf
renice
resizewin
rev
revoke
rpcgen
rpcinfo
rs
rup
ruptime	Fix indentation in ruptime command output for hosts in the "down" state.	2019-01-12 12:57:32 +00:00
rusers
rwall
rwho	capsicum: use a new capsicum helpers in tools	2018-11-04 19:24:49 +00:00
script
sdiff
sdiotool
sed	usr.bin/sed/tests: fix one of the regression test cases by adding its	2018-10-31 15:04:41 +00:00
seq	seq(1): Require user-provided format strings to contain a conversion	2019-03-07 18:24:16 +00:00
setchannel
shar	Shar files may be seen as binary by grep.	2019-01-31 23:21:18 +00:00
showmount
size
smbutil
sockstat
soelim
sort	sort(1): Memoize MD5 computation to reduce repeated computation	2019-04-13 04:42:17 +00:00
split
ssh-copy-id
stat	Unbreak the tests after r347002.	2019-05-01 19:35:45 +00:00
stdbuf
strings	strings: disable Casper support while building native-xtools	2019-04-08 03:35:47 +00:00
su
svn	svn: support building with WITH_PIE	2019-02-21 15:08:25 +00:00
systat	Add stat counter for ipv6 atomic fragments	2019-04-19 17:06:43 +00:00
tabs
tail	Drop "All rights reserved" from the files I own	2019-03-11 22:23:56 +00:00
talk	Use a private definition of osockaddr rather then relying on type	2019-01-18 21:30:06 +00:00
tar
tcopy
tee	capsicum: use a new capsicum helpers in tools	2018-11-04 19:24:49 +00:00
telnet
tests
tftp
time
timeout
tip
top	Fix regression in top(1) after r344381, causing informational messages	2019-04-02 18:01:54 +00:00
touch
tput
tr
true
truncate
truss	truss: Add support for fsync(2) and fdatasync(2).	2019-02-28 09:13:41 +00:00
tset
tsort
tty
ul
uname
unexpand
unifdef
uniq	capsicum: use a new capsicum helpers in tools	2018-11-04 19:24:49 +00:00
units	Correct a typo: was -> way.	2019-01-21 15:27:58 +00:00
unvis
unzip
usbhidaction
usbhidctl
users
uudecode
uuencode	Make outfile constant.	2018-11-12 07:14:34 +00:00
vacation
vgrind
vi
vis
vmstat	Provide separate accounting for user-wired pages.	2019-05-13 16:38:48 +00:00
vtfontcvt	vtfontcvt: whitespace cleanup	2019-02-06 18:50:48 +00:00
w
wall
wc	cap_fileargs: chase r346315, update fileargs_init in consumers	2019-04-17 16:18:14 +00:00
what
whereis	Silence Clang Scan warnings regarding the use of strcp().	2019-01-24 18:39:45 +00:00
which
who
whois
write	Remove extraneous setutxent() calls in write(1).	2019-01-23 20:02:17 +00:00
xargs
xinstall	install(1): Fix relative path calculation with partial common dest/src	2019-01-31 05:20:11 +00:00
xo
xohtml	Import libxo-1.0.4:	2019-05-06 20:20:21 +00:00
xolint
xopo
xstr
xz
xzdec
yacc
yes
ypcat
ypmatch
ypwhich
zstd	Update to Zstandard 1.4.0	2019-04-19 02:54:13 +00:00
Makefile	Move trim(1) from usr.bin to usr.sbin to become trim(8).	2018-11-29 16:08:16 +00:00
Makefile.amd64
Makefile.arm
Makefile.i386
Makefile.inc
Makefile.powerpc
Makefile.sparc64