Mark Asselstine 2965ccfcdb systemd.bbclass: don't block on service restart
The current class works fine when a recipe uses SYSTEMD_AUTO_ENABLE
'enable' and has no on device pkg_postinst(), ie when the postinst is
run as part of rootfs creation.  However, when there is a component of
pkg_postinst() that is run on device the 'systemctl restart' is run as
part of the run_postinsts.service at boot. This results in the boot
spinning indefinitely with:

[ *** ] A start job is running for Run pending postinsts (7s / no limit)

The issue could potentially be that the packages service has an
'After' clause which comes later in the boot, beyond
run_postinsts.service, creating a chicken before the egg
scenario. Even service files without an 'After' clause cause this
situation however. Despite this not being the cause of the issue this
fix will prevent this scenario from happenning.

Using strace we are able to find that during boot, when
run_postinsts.service is running attempting to start or restart any
service will result in the call get stuck on poll(). Since the
run_postinsts.service does not monitor the outcome of the call to
restart we can work around this by using '--no-block'.

(From OE-Core rev: 6ad6a0084a73088fc2a27ab9958e5c46d6e094fc)

Signed-off-by: Mark Asselstine <mark.asselstine@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-11-30 15:48:08 +00:00
2016-03-26 08:06:58 +00:00
2014-01-02 12:58:54 +00:00

Poky

Poky is an integration of various components to form a complete prepackaged build system and development environment. It features support for building customised embedded device style images. There are reference demo images featuring a X11/Matchbox/GTK themed UI called Sato. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK with IDE integration.

Additional information on the specifics of hardware that Poky supports is available in README.hardware. Further hardware support can easily be added in the form of layers which extend the systems capabilities in a modular way.

As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information e.g. for the hardware support. Poky is in turn a component of the Yocto Project.

The Yocto Project has extensive documentation about the system including a reference manual which can be found at: http://yoctoproject.org/documentation

OpenEmbedded-Core is a layer containing the core metadata for current versions of OpenEmbedded. It is distro-less (can build a functional image with DISTRO = "nodistro") and contains only emulated machine support.

For information about OpenEmbedded, see the OpenEmbedded website: http://www.openembedded.org/

Where to Send Patches

As Poky is an integration repository (built using a tool called combo-layer), patches against the various components should be sent to their respective upstreams:

bitbake: Git repository: http://git.openembedded.org/bitbake/ Mailing list: bitbake-devel@lists.openembedded.org

documentation: Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/yocto-docs/ Mailing list: yocto@yoctoproject.org

meta-poky, meta-yocto-bsp: Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto(-bsp) Mailing list: poky@yoctoproject.org

Everything else should be sent to the OpenEmbedded Core mailing list. If in doubt, check the oe-core git repository for the content you intend to modify. Before sending, be sure the patches apply cleanly to the current oe-core git repository.

Git repository: http://git.openembedded.org/openembedded-core/
Mailing list: openembedded-core@lists.openembedded.org

Note: The scripts directory should be treated with extra care as it is a mix of oe-core and poky-specific files.

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