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trasz 9e7534ea78 Try harder in cfiscsi_offline(). This is believed to be the workaround
for the "ctld hanging on reload" problem observed in same cases under
high load.  I'm not 100% sure it's _the_ fix, as the issue is rather hard
to reproduce, but it was tested as part of a larger path and the problem
disappeared.  It certainly shouldn't break anything.

Now, technically, it shouldn't be needed.  Quoting mav@, "After
ct->ct_online == 0 there should be no new sessions attached to the target.
And if you see some problems abbout it, it may either mean that there are
some races where single cfiscsi_session_terminate(cs) call may be lost,
or as a guess while this thread was sleeping target was reenabbled and
redisabled again".  Should such race be discovered and properly fixed
in the future, than this and the followup two commits can be backed out.

PR:		220175
Reported by:	Eugene M. Zheganin <emz at norma.perm.ru>
Tested by:	Eugene M. Zheganin <emz at norma.perm.ru>
Discussed with:	mav
Approved by:	re (gjb)
MFC after:	2 weeks
Sponsored by:	playkey.net
2018-09-01 16:16:40 +00:00
bin Finish moving dot.cshrc and dot.profile to bin/csh/ and bin/sh/. 2018-08-29 16:59:19 +00:00
cddl Add support for send, receive and state-change DTrace providers for 2018-08-22 21:23:32 +00:00
contrib Reduce the log level of tcpd_warn calls from ERR to WARNING. 2018-08-23 20:44:26 +00:00
crypto Avoid printing extraneous function names when searching man page 2018-08-29 06:04:54 +00:00
etc Move fbtab, login.conf, and motd to usr.bin/login/ 2018-08-30 15:52:03 +00:00
gnu Update libstdc++ configuration. 2018-07-16 18:53:28 +00:00
include Remove arc4random_stir and arc4random_addrandom from stdlib.h. 2018-08-26 18:04:54 +00:00
kerberos5 krb5-config build: Remove gratuitous escaping 2018-08-12 00:06:21 +00:00
lib libbe(3): Fix error handling with respect to be_exists 2018-09-01 02:22:26 +00:00
libexec Fix wrong offset calculation for R_ARM_TLS_TPOFF32 relocations. 2018-08-25 16:54:37 +00:00
release release.sh: disable colors and the beastie menu for ARM/ARM64 targets 2018-08-30 18:00:28 +00:00
rescue Avoid referencing private lib names directly. 2017-11-10 07:53:02 +00:00
sbin Add in a missing newline 2018-08-25 15:47:52 +00:00
secure Fix build after r337852: Don't rebuild moduli based on unrelated moduli.c 2018-08-16 19:48:07 +00:00
share Add beforeinstallconfig to bsd.confs.mk to enable running commands prior to 2018-08-28 22:22:06 +00:00
stand userboot: handle guest interpreter mismatches more intelligently 2018-09-01 02:23:45 +00:00
sys Try harder in cfiscsi_offline(). This is believed to be the workaround 2018-09-01 16:16:40 +00:00
targets send-pr: wave goodbye 2018-08-19 07:12:35 +00:00
tests Fix sys/netipsec/tunnel tests after r337736 2018-08-17 18:37:22 +00:00
tools Put building of drm and drm2 modules behind options. 2018-08-28 14:46:49 +00:00
usr.bin Move fbtab, login.conf, and motd to usr.bin/login/ 2018-08-30 15:52:03 +00:00
usr.sbin userboot: handle guest interpreter mismatches more intelligently 2018-09-01 02:23:45 +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 Remove spuriously added svn properties 2018-08-02 18:37:02 +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 Add pointer to freebsd-numerics for libm. 2018-07-16 15:29:32 +00:00
Makefile Import OpenSSL 1.0.2p. 2018-08-14 16:18:14 +00:00
Makefile.inc1 Fix 'install: symlink usr/src/sys -> /sys: File exists' in distributeworld 2018-08-28 23:56:52 +00:00
Makefile.libcompat Fix non-FreeBSD host lib32 build for TARGET=amd64 2018-08-23 18:19:10 +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 libbe(3)/bectl(8): Make consistent with beadm 2018-08-24 20:44:58 +00:00
README Import OpenSSL 1.0.2p. 2018-08-14 16:18:14 +00:00
README.md README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
UPDATING Tweak typos in UPDATING 2018-08-29 17:37:23 +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