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Mark Johnston 1587dc37fa Have arm64's pmap_fault() handle WnR faults on dirty PTEs.
If we take a WnR permission fault on a managed, writeable and dirty
PTE, simply return success without calling the main fault handler.  This
situation can occur if multiple threads simultaneously access a clean
writeable mapping and trigger WnR faults; losers of the race to mark the
PTE dirty would end up calling the main fault handler, which had no work
to do.

Reported by:	alc
Reviewed by:	alc
MFC with:	r350004
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21097
2019-07-29 21:21:53 +00:00
bin Now that we have MK_LS_COLORS, we don't need RELEASE_CRUNCH check here. 2019-07-15 07:35:46 +00:00
cddl Fix a bug introduced with parallel mounting of zfs 2019-07-26 13:12:33 +00:00
contrib Pull in r366369 from upstream llvm trunk (by Francis Visoiu Mistrih): 2019-07-26 18:49:20 +00:00
crypto Complete LOCAL_PEERCRED support. Cache pid of the remote process in the 2019-05-30 14:24:26 +00:00
etc Remove NAND and NANDFS support 2019-06-25 04:50:09 +00:00
gnu powerpc: Transition to Secure-PLT, like most other OSs (Toolchain part) 2019-06-25 02:35:22 +00:00
include Add mkostempsat(3). 2019-07-29 19:02:16 +00:00
kerberos5 Fix generation of krb5-config with LC_CTYPE=*.UTF-8 2019-07-01 11:47:45 +00:00
lib Remove a duplicate file listing in the libarchive tests. 2019-07-29 20:37:04 +00:00
libexec motd: Generate from template to /var/run 2019-07-20 20:56:31 +00:00
release motd: Generate from template to /var/run 2019-07-20 20:56:31 +00:00
rescue Remove unused defines since r147075 2019-07-12 04:44:50 +00:00
sbin Use present now scsi_mode_sense_subpage(). 2019-07-29 20:41:11 +00:00
secure Merge OpenSSL 1.1.1c. 2019-05-28 21:54:12 +00:00
share * Improve input validation of sysctl parameters for DCTPC. 2019-07-29 08:50:35 +00:00
stand loader: ignore some variable settings if input unverified 2019-07-17 23:33:14 +00:00
sys Have arm64's pmap_fault() handle WnR faults on dirty PTEs. 2019-07-29 21:21:53 +00:00
targets Remove cap_random(3). 2019-07-24 22:50:43 +00:00
tests Temporarily skip flakey test case 2019-07-24 17:41:40 +00:00
tools Save the last callout function executed on each CPU 2019-07-03 19:22:44 +00:00
usr.bin printf(1): Note that \c only works in %b strings 2019-07-29 20:43:07 +00:00
usr.sbin Add device temperature reporting into CTL. 2019-07-26 03:49:16 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.cirrus.yml cirrus.yml: use OVMF.fd from uefi-edk2-qemu-x86_64 package 2019-07-24 21:08:30 +00:00
.clang-format Add a basic clang-format configuration file 2019-06-07 15:23:52 +00:00
.gitattributes Add a basic clang-format configuration file 2019-06-07 15:23:52 +00:00
.gitignore Ignore _.universe-toolchain file. 2018-07-01 13:50:37 +00:00
COPYRIGHT Happy New Year 2019! 2019-01-01 00:25:25 +00:00
LOCKS LOCKS: update current locks 2018-06-09 03:08:04 +00:00
MAINTAINERS Update/reformat maintainer entries that I am a part of 2019-04-29 18:48:43 +00:00
Makefile pkgbase: Add the sub stage-packages targets to TGTS 2019-07-24 08:00:00 +00:00
Makefile.inc1 Add head(1) to native-xtools so that it can be used in qemu-user jails 2019-06-20 13:24:58 +00:00
Makefile.libcompat libsysdecode: use the proper include directory 2019-07-25 17:10:17 +00:00
Makefile.sys.inc AUTO_OBJ: For all top-level targets enforce using an OBJDIR. 2017-12-05 21:29:47 +00:00
ObsoleteFiles.inc Remove cap_random(3). 2019-07-24 22:50:43 +00:00
README Import OpenSSL 1.1.1c. 2019-05-28 20:08:17 +00:00
README.md README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
RELNOTES Document r350307. 2019-07-24 22:57:17 +00:00
UPDATING Re-wrap the text at 80 columns after fixing the indent in the prior commit. 2019-07-26 17:58:46 +00:00

FreeBSD Source:

This is the top level of the FreeBSD source directory. This file was last revised on: FreeBSD

FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.

For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.

The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html, and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information, including setting make(1) variables.

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bin		System/user commands.

cddl		Various commands and libraries under the Common Development
		and Distribution License.

contrib		Packages contributed by 3rd parties.

crypto		Cryptography stuff (see crypto/README).

etc		Template files for /etc.

gnu		Various commands and libraries under the GNU Public License.
		Please see gnu/COPYING* for more information.

include		System include files.

kerberos5	Kerberos5 (Heimdal) package.

lib		System libraries.

libexec		System daemons.

release		Release building Makefile & associated tools.

rescue		Build system for statically linked /rescue utilities.

sbin		System commands.

secure		Cryptographic libraries and commands.

share		Shared resources.

stand		Boot loader sources.

sys		Kernel sources.

sys/<arch>/conf Kernel configuration files. GENERIC is the configuration
		used in release builds. NOTES contains documentation of
		all possible entries.

tests		Regression tests which can be run by Kyua.  See tests/README
		for additional information.

tools		Utilities for regression testing and miscellaneous tasks.

usr.bin		User commands.

usr.sbin	System administration commands.

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https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html