freebsd with flexible iflib nic queues
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Ian Lepore 1cc7e361a6 When allocating a new keyboard at vt_upgrade() time, unwind any cngrabs
done on the old keyboard and then do the corresponding number of grabs
on the new keyboard.

This fixes a race that can leave the system with a non-functioning
keyboard.  It goes like this...

 - The bios claims there is an AT keyboard, atkbd attaches.
 - SI_SUB_INT_CONFIG_HOOKS runs.
 - USB probes devices. Devices begin attaching, including disks.
 - GELI prompts for a password for a just-attached disk, which results
   in a cngrab() while atkbd is the keyboard.
 - A USB keyboard attaches.
 - vt_upgrade() runs and switches the keyboard to the new USB keyboard,
   but because cngrab was never called for it, it's not activated and
   keystrokes are ignored.
 - Now there is no functional keyboard and no way to get one; even
   plugging in a different USB keyboard doesn't help, because the console
   is still grabbed, still waiting for a GELI pw.

Discussed with:	     ray@
2018-12-31 01:09:23 +00:00
bin Add a note that the use of -B option does not guarantee a size of fragment 2018-12-29 23:08:59 +00:00
cddl MFV r342532: 5882 Temporary pool names 2018-12-26 11:03:14 +00:00
contrib Import tzdata 2018h 2018-12-30 08:22:35 +00:00
crypto Do not complain when /dev/crypto does not exist. 2018-12-14 01:06:34 +00:00
etc Remove iBCS2, part1: userspace 2018-12-19 21:56:54 +00:00
gnu Do not install GNU ld if lld is /usr/bin/ld 2018-11-26 17:07:35 +00:00
include Fix mismatch from r342379. 2018-12-23 20:51:13 +00:00
kerberos5 Update the existing heimdal implementation for OpenSSL 1.1. 2018-10-05 16:35:24 +00:00
lib Update to Zstandard 1.3.8 2018-12-29 21:18:01 +00:00
libexec Remove iBCS2, part1: userspace 2018-12-19 21:56:54 +00:00
release Rework UEFI ESP generation 2018-12-20 19:39:37 +00:00
rescue rescue: set NO_SHARED in Makefile 2018-11-19 22:18:18 +00:00
sbin bectl: use jail id as the default jail name for a boot environment 2018-12-25 15:18:41 +00:00
secure Enable devcryptoeng for OpenSSL. 2018-12-12 21:56:47 +00:00
share Fix various issues with Chinese locales: 2018-12-30 23:04:02 +00:00
stand Add Copyright. 2018-12-30 15:34:12 +00:00
sys When allocating a new keyboard at vt_upgrade() time, unwind any cngrabs 2018-12-31 01:09:23 +00:00
targets retire LINKER_FEATURES filter flag 2018-11-12 20:44:22 +00:00
tests import zstd 1.3.8 2018-12-29 06:51:10 +00:00
tools beinstall: try to save progress from pkg updates. 2018-12-27 23:27:48 +00:00
usr.bin Update to Zstandard 1.3.8 2018-12-29 21:18:01 +00:00
usr.sbin Use the --activate efibootmgr(8) flag when creating entries in bootconfig 2018-12-31 00:26:35 +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
.gitattributes sfxge(4): fix incorrectly set svn properties 2018-11-26 07:30:47 +00:00
.gitignore Ignore _.universe-toolchain file. 2018-07-01 13:50:37 +00:00
COPYRIGHT Remove 'All Rights Reserved' from the collection copyright and templates. 2018-05-09 02:02:49 +00:00
LOCKS LOCKS: update current locks 2018-06-09 03:08:04 +00:00
MAINTAINERS Register a pre-commit review for ipfilter. 2018-12-24 01:12:22 +00:00
Makefile Import tzdata 2018h 2018-12-30 08:13:51 +00:00
Makefile.inc1 Remove iBCS2: plug a wart missed in r342242 2018-12-19 22:08:51 +00:00
Makefile.libcompat Use ...-freebsd13.0 in -target strings. 2018-11-12 16:55:20 +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 iBCS2, part1: userspace 2018-12-19 21:56:54 +00:00
README README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
README.md import zstd 1.3.8 2018-12-29 06:51:10 +00:00
UPDATING Add UPDATING entry for r342635. 2018-12-31 00:15:05 +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.

Source Roadmap:

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.

For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see:

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