freebsd kernel with SKQ
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Scott Long 3da2a91a57 In rare cases, a SATA drive can stop responding to commands and trigger a
reset device task request from the driver.  If the drive fails to respond
with a signature FIS, the driver would previously get into an endless retry
loop, stalling all I/O to the drive and keeping user processes stranded.
Instead, fail the i/o and invalidate the device if the task management
command times out.  This is controllable with the sysctl and tunable
hw.isci.fail_on_task_timeout
dev.isci.0.fail_on_task_timeout

The default for these is 1.

Reviewed by:	jimharris
Obtained from:	Netflix, Inc.
MFC after:	2 days
2014-06-30 01:01:54 +00:00
bin Always set UF_ARCHIVE on target (because they are by definition new files 2014-06-27 19:57:54 +00:00
cddl MFV illumos 2014-06-26 23:24:59 +00:00
contrib Fix breakage after r267981. 2014-06-28 09:53:44 +00:00
crypto Merge OpenSSL 1.0.1h. 2014-06-09 05:50:57 +00:00
etc Remove example cvsup config files. 2014-06-25 12:32:41 +00:00
games use .Mt to mark up email addresses consistently (part1) 2014-06-20 09:40:43 +00:00
gnu Make sure that the sub-makes for unwind.h start from the CURDIR 2014-06-24 22:15:27 +00:00
include Don't install GSS-API headers when the GSSAPI option has been disabled. 2014-06-13 10:08:18 +00:00
kerberos5 In preparation for ASLR [1] support add WITH_PIE to support building with -fPIE. 2014-06-08 17:29:31 +00:00
lib Fix build with WITHOUT_INET6. 2014-06-26 14:24:31 +00:00
libexec mdoc: remove superfluous paragraph macros. 2014-06-23 18:40:21 +00:00
release Remove an nunnecessary reference to csup. 2014-06-25 12:17:00 +00:00
rescue Minor style nits... 2014-05-23 00:20:57 +00:00
sbin Don't hide zero-length strings when doing sysctl listings. 2014-06-27 15:23:12 +00:00
secure Merge OpenSSL 1.0.1h. 2014-06-09 05:50:57 +00:00
share Regenerate after r268022 2014-06-30 00:22:41 +00:00
sys In rare cases, a SATA drive can stop responding to commands and trigger a 2014-06-30 01:01:54 +00:00
tests Vendor import of file 5.19. 2014-06-24 21:24:48 +00:00
tools Rename the WITHOUT_VT_SUPPORT knob to WITHOUT_VT 2014-06-30 00:20:12 +00:00
usr.bin Rename the WITHOUT_VT_SUPPORT knob to WITHOUT_VT 2014-06-30 00:20:12 +00:00
usr.sbin Don't accidently skip every second line when calculating the 2014-06-28 15:53:28 +00:00
.arcconfig Prevent arc commands from overwriting history 2014-06-06 08:05:34 +00:00
.arclint arc: add linting for python files 2014-06-02 00:21:42 +00:00
COPYRIGHT Bump copyright year. 2013-12-31 12:18:10 +00:00
LOCKS
MAINTAINERS Remove send-pr, the supported interface to submit bugs is now via 2014-06-14 20:36:32 +00:00
Makefile grep -L returns non-zero status if none of the files had the pattern 2014-05-10 16:39:08 +00:00
Makefile.inc1 Rename the WITHOUT_VT_SUPPORT knob to WITHOUT_VT 2014-06-30 00:20:12 +00:00
ObsoleteFiles.inc Remove example cvsup config files. 2014-06-25 12:32:41 +00:00
README Vendor import of file 5.19. 2014-06-24 21:24:48 +00:00
UPDATING Rename the WITHOUT_VT_SUPPORT knob to WITHOUT_VT 2014-06-30 00:20:12 +00:00

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

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, the most
commonly used one being ``world'', which rebuilds and installs
everything in the FreeBSD system from the source tree except the
kernel, the kernel-modules and the contents of /etc.  The ``world''
target should only be used in cases where the source tree has not
changed from the currently running version.  See:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html
for more information, including setting make(1) variables.

The ``buildkernel'' and ``installkernel'' targets build and install
the kernel and the modules (see below).  Please see the top of
the Makefile in this directory for more information on the
standard build targets and compile-time flags.

Building a kernel is a somewhat more involved process, documentation
for which can be found at:
   http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
And in the config(8) man page.
Note: If you want to build and install the kernel with the
``buildkernel'' and ``installkernel'' targets, you might need to build
world before.  More information is available in the handbook.

The sample kernel configuration files reside in the sys/<arch>/conf
sub-directory (assuming that you've installed the kernel sources), the
file named GENERIC being the one used to build your initial installation
kernel.  The file NOTES contains entries and documentation for all possible
devices, not just those commonly used.  It is the successor of the ancient
LINT file, but in contrast to LINT, it is not buildable as a kernel but a
pure reference and documentation file.


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.

games		Amusements.

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.

sys		Kernel sources.

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:

  http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html