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Daniel P. Berrange 4e3117ae50 Make LXC container startup/shutdown/I/O more robust 
The current LXC I/O controller looks for HUP to detect
when a guest has quit. This isn't reliable as during
initial bootup it is possible that 'init' will close
the console and let mingetty re-open it. The shutdown
of containers was also flakey because it only killed
the libvirt I/O controller and expected container
processes to gracefully follow.

Change the I/O controller such that when it see HUP
or an I/O error, it uses kill($PID, 0) to see if the
process has really quit.

Change the container shutdown sequence to use the
virCgroupKillPainfully function to ensure every
really goes away

This change makes the use of the 'cpu', 'devices'
and 'memory' cgroups controllers compulsory with
LXC

* docs/drvlxc.html.in: Document that certain cgroups
  controllers are now mandatory
* src/lxc/lxc_controller.c: Check if PID is still
  alive before quitting on I/O error/HUP
* src/lxc/lxc_driver.c: Use virCgroupKillPainfully
2011-03-15 12:12:53 +00:00
.gnulib@c2090a84dc maint: update to latest gnulib 2011-03-03 08:04:27 -07:00
daemon Allow to dynamically set the size of the debug buffer 2011-03-15 15:13:21 +08:00
docs Make LXC container startup/shutdown/I/O more robust 2011-03-15 12:12:53 +00:00
examples maint: kill all remaining uses of old DEBUG macro 2011-02-21 08:46:52 -07:00
include Don't use INT64_MAX in libvirt.h because it requires stdint.h 2011-03-11 22:08:24 +01:00
m4 maint: update to latest gnulib 2010-11-17 10:13:12 -07:00
po Expose event loop implementation as a public API 2011-03-07 14:16:13 +00:00
python python: Use hardcoded python path in libvirt.py 2011-03-14 12:37:19 +01:00
src Make LXC container startup/shutdown/I/O more robust 2011-03-15 12:12:53 +00:00
tests Move event code out of the daemon/ into src/util/ 2011-03-07 14:16:13 +00:00
tools libvirt-guests: avoid globbing when splitting $URIS 2011-03-14 15:00:36 -06:00
.dir-locals.el maint: make spacing in .sh files easier 2011-03-14 21:57:42 -06:00
.gitignore autobuild.sh: use VPATH build 2011-02-21 09:27:05 -07:00
.gitmodules make .gnulib a submodule 2009-07-08 16:17:51 +02:00
.mailmap maint: update an email address preference 2010-08-10 08:13:22 -06:00
.x-sc_avoid_ctype_macros exempt gnulib from ctype-macros prohibition 2008-10-28 17:36:31 +00:00
.x-sc_avoid_if_before_free avoid a "make syntax-check" failure 2009-07-09 20:00:37 +02:00
.x-sc_avoid_write Introduce new APIs for spawning processes 2010-12-02 16:00:44 -07:00
.x-sc_bindtextdomain maint: update to latest gnulib 2010-11-17 10:13:12 -07:00
.x-sc_m4_quote_check syntax-check: enable more checks 2009-02-03 13:08:36 +00:00
.x-sc_po_check build: avoid false positive syntax-check failure 2010-10-19 09:28:35 -06:00
.x-sc_prohibit_always_true_header_tests build: update gnulib 2010-05-06 14:35:38 -06:00
.x-sc_prohibit_asprintf util: add virVasprintf 2010-12-02 11:23:15 -07:00
.x-sc_prohibit_close maint: reject raw close, popen in 'make syntax-check' 2011-01-29 10:36:47 -07:00
.x-sc_prohibit_empty_lines_at_EOF maint: update to latest gnulib 2011-03-03 08:04:27 -07:00
.x-sc_prohibit_fork_wrappers maint: reject raw close, popen in 'make syntax-check' 2011-01-29 10:36:47 -07:00
.x-sc_prohibit_gethostby Various syntax-check fixes. 2009-10-26 10:34:05 +01:00
.x-sc_prohibit_gethostname Add a new syntax-check rule for gethostname. 2009-10-26 10:34:27 +01:00
.x-sc_prohibit_gettext_noop build: fix syntax-check problems 2010-04-12 16:43:05 -06:00
.x-sc_prohibit_have_config_h maint: sync from coreutils 2009-01-29 18:06:19 +00:00
.x-sc_prohibit_HAVE_MBRTOWC maint: sync from coreutils 2009-01-29 18:06:19 +00:00
.x-sc_prohibit_nonreentrant Tighten up nonreentrant syntax-check. 2009-10-26 10:33:42 +01:00
.x-sc_prohibit_readlink Add a rule to check for uses of readlink. 2010-01-22 09:42:35 -05:00
.x-sc_prohibit_sprintf maint: avoid remaining sprintf uses 2010-11-17 10:13:12 -07:00
.x-sc_prohibit_strncpy Avoid checking against strncpy in virsh.c 2010-10-12 19:26:10 +02:00
.x-sc_prohibit_test_minus_ao build: fix syntax-check problems 2010-04-12 16:43:05 -06:00
.x-sc_prohibit_VIR_ERR_NO_MEMORY Various syntax-check fixes. 2009-10-26 10:34:05 +01:00
.x-sc_prohibit_xmlGetProp maint: prohibit most uses of xmlGetProp 2010-11-24 15:23:43 -07:00
.x-sc_require_config_h Various syntax-check fixes. 2009-10-26 10:34:05 +01:00
.x-sc_require_config_h_first Misc syntax-check fixes 2009-09-21 14:41:47 +01:00
.x-sc_trailing_blank build: exempt *.ico files from the trailing blank check 2008-10-16 13:28:07 +00:00
.x-sc_unmarked_diagnostics build: import latest gnulib 2010-04-02 10:18:55 -06:00
acinclude.m4 maint: turn on gcc logical-op checking 2010-07-28 15:25:36 +02:00
AUTHORS Fix performance problem of virStorageVolCreateXMLFrom() 2011-03-14 21:02:17 -06:00
autobuild.sh autobuild.sh: use VPATH build 2011-02-21 09:27:05 -07:00
autogen.sh build: avoid problems with autogen.sh runs from tarball 2011-02-12 06:28:28 -07:00
bootstrap maint: support --no-git option during autogen.sh 2011-01-21 09:45:37 -07:00
bootstrap.conf maint: fix 'make dist' in VPATH build 2011-02-21 09:27:05 -07:00
cfg.mk maint: make spacing in .sh files easier 2011-03-14 21:57:42 -06:00
ChangeLog-old generate ChangeLog from git logs into distribution tarball 2009-07-08 16:17:51 +02:00
configure.ac Add check for kill() to fix build of cgroups on win32 2011-02-28 14:13:58 +00:00
COPYING.LIB remove all trailing blank lines 2009-07-16 15:06:42 +02:00
HACKING maint: document dislike of mismatched if/else bracing 2011-01-05 11:05:28 -07:00
libvirt.pc.in * libvirt.pc.in: applied patch from Daniel Berrange to fix --cflags 2006-03-24 13:18:12 +00:00
libvirt.spec.in Add logrotate support for libvirtd.log 2011-03-04 22:43:55 +08:00
Makefile.am build: distribute 'make syntax-check' tweaks 2011-02-09 12:34:32 -07:00
Makefile.nonreentrant Ban use of all inet_* functions 2010-10-22 11:59:23 +01:00
mingw32-libvirt.spec.in Add dtrace static probes in libvirtd 2010-10-22 12:00:39 +01:00
README Correct typos in the documentation (Atsushi SAKAI) 2008-01-24 10:15:13 +00:00
README-hacking maint: relax git minimum version 2010-02-24 14:29:27 -05:00
TODO Update todo list file to point at bugzilla/website 2010-10-13 16:45:26 +01:00

README 

         LibVirt : simple API for virtualization

  Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.

Daniel Veillard <veillard@redhat.com>