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Steven Hartland 85c9dd9d89 Prevent overflow issues in timeout processing
Previously, any timeout value for which (timeout * hz) will overflow the
signed integer, will give weird results, since callout(9) routines will
convert negative values of ticks to '1'. For unsigned integer overflow we
will get sufficiently smaller timeout values than expected.

Switch from callout_reset, which requires conversion to int based ticks
to callout_reset_sbt to avoid this.

Also correct isci to correctly resolve ccb timeout.

This was based on the original work done by Eygene Ryabinkin
<rea@freebsd.org> back in 5 Aug 2011 which used a macro to help avoid
the overlow.

Differential Revision:	https://reviews.freebsd.org/D1157
Reviewed by:	mav, davide
MFC after:	1 month
Sponsored by:	Multiplay
2014-11-21 21:01:24 +00:00
bin sh(1): Add/improve information about exit status of commands. 2014-11-14 17:11:28 +00:00
cddl DTrace imposes a 128-byte limit on the length of the function component of 2014-11-17 22:22:16 +00:00
contrib Improve support for XSAVE with debuggers. 2014-11-21 20:53:17 +00:00
crypto Merge OpenSSL 1.0.1j. 2014-10-15 19:12:05 +00:00
etc Missed a terminating ';'. 2014-11-18 16:31:00 +00:00
games Update factor for changes to types in primes, which is a dependency. 2014-09-27 10:57:34 +00:00
gnu Change kbdb's kthr::cpu field into an int, to avoid gcc warnings about 2014-11-11 18:54:57 +00:00
include Fix the build by installing acpi_hpet.h correctly. 2014-10-24 23:25:11 +00:00
kerberos5 Fix incremental builds involving non-root users with read-only source files. 2014-09-18 14:50:21 +00:00
lib Add FPU support for MIPS setjmp(3)/longjmp(3). 2014-11-21 20:02:06 +00:00
libexec Use canonical __PIC__ flag 2014-11-21 02:05:48 +00:00
release Renove faith(4) and faithd(8) from base. It looks like industry 2014-11-09 21:33:01 +00:00
rescue Add libxo, now needed by df(1). 2014-11-07 04:39:01 +00:00
sbin Recommit r274750. 2014-11-21 01:43:55 +00:00
secure Merge OpenSSL 1.0.1j. 2014-10-15 19:29:22 +00:00
share Create a vimage.9 link to vnet.9 2014-11-21 17:57:37 +00:00
sys Prevent overflow issues in timeout processing 2014-11-21 21:01:24 +00:00
tests Use PROGS instead of PROG and remove unnecessary SRCS?= assignment 2014-11-08 03:20:56 +00:00
tools Simply remove the tmp dir before creating the symlink. We are doing 2014-11-21 14:53:42 +00:00
usr.bin Improve support for XSAVE with debuggers. 2014-11-21 20:53:17 +00:00
usr.sbin In conf_apply() remove iSCSI ports from kernel before removing LUNs. 2014-11-21 18:00:00 +00:00
.arcconfig Update the URL to the phabricator instance. 2014-08-14 16:25:43 +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 Explicitly require Security Officer's approval for kernel PRNG bits. 2013-09-17 14:19:05 +00:00
MAINTAINERS Add freebsd-testing and myself to MAINTAINERS for contrib/netbsd-tests and 2014-11-16 19:47:29 +00:00
Makefile Import OpenSSL 1.0.1j. 2014-10-15 17:32:57 +00:00
Makefile.inc1 Slightly alter the handling of LOCAL_LIB_DIRS to skip addition of 2014-11-21 18:35:48 +00:00
ObsoleteFiles.inc Renove faith(4) and faithd(8) from base. It looks like industry 2014-11-09 21:33:01 +00:00
README Import OpenSSL 1.0.1j. 2014-10-15 17:32:57 +00:00
UPDATING Renove faith(4) and faithd(8) from base. It looks like industry 2014-11-09 21:33:01 +00:00

This is the top level of the FreeBSD source directory.  This file
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Building a kernel is a somewhat more involved process, documentation
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   http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
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Note: If you want to build and install the kernel with the
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The sample kernel configuration files reside in the sys/<arch>/conf
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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.
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include		System include files.

kerberos5	Kerberos5 (Heimdal) package.

lib		System libraries.

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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.


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