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From: Anders Darander <anders@chargestorm.se>
To: <openembedded-core@lists.openembedded.org>
Cc: Anders Darander <anders@chargestorm.se>
Subject: [PATCH 0/1] Fix race while building external modules
Date: Wed, 19 Oct 2011 13:14:45 +0200	[thread overview]
Message-ID: <cover.1319022793.git.anders@chargestorm.se> (raw)


When building an image with several external modules, a race is likely to
occur. This race is when building scripts in the staged kernel tree (sysroot).

To prevent this, we promote the do_make_scripts() function to a task, which we
protect by a lock. Tip on how to make this work was received by Richard in
[1]. To avoid new problems, introduced by this promotion, we make this new
task depend on do_populate_sysroot from the modules dependencies
(i.e. virtual/kernel).

This patch has been extensively tested on the 2011-1 release branch, on a
custom ARM-machine and distro with several external modules.

[1] http://lists.linuxtogo.org/pipermail/openembedded-core/2011-October/011163.html

The following changes since commit e31dd9b65f3b03f79cabab25eca157532de3bd9c:

  fontconfig: fix fix-pkgconfig.patch (2011-10-18 18:13:47 +0100)

are available in the git repository at:
  git://github.com/darander/oe-core ext-mod-race
  https://github.com/darander/oe-core/tree/ext-mod-race

Anders Darander (1):
  module.bbclass: add lock to prevent error bulding ext modules

 meta/classes/module.bbclass |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

-- 
1.7.7




             reply	other threads:[~2011-10-19 11:20 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-19 11:14 Anders Darander [this message]
2011-10-19 11:15 ` [PATCH 1/1] module.bbclass: add lock to prevent error bulding ext modules Anders Darander
2011-10-19 11:38   ` Koen Kooi
2011-10-19 11:55     ` Anders Darander
2011-10-20 17:17 ` [PATCH 0/1] Fix race while building external modules Saul Wold

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