9d0cad1ae1
A nasty corner case leads to a hang when utils.lockfile is called from oe-core's package-manager:deploy_dir_lock (in turn called from rootfs:_create further up the call stack) with "name" owned by root and the user running bitbake has no write access. Because this code runs under pseudo, the UID and EUID of the bitbake worker process are 0, so the os.access(dirname, os.W_OK) returns True i.e. it thinks the path is writable when in fact it's not writable. Only later when trying to open the file an Exception it thrown because the OS prohibits writing, but the Exception is ignored and the open is retried leading to an infinite loop. So this fix is to not ignore the "Permission Denied" exception. An alternative fix would be to replace the os.access() call with an try: open() except() at the beginning of the function. (Bitbake rev: 0cb64d0f85b41b2fa764baf6ff7ea1b13f95004e) Signed-off-by: Ioan-Adrian Ratiu <adrian.ratiu@ni.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Bitbake
BitBake is a generic task execution engine that allows shell and Python tasks to be run efficiently and in parallel while working within complex inter-task dependency constraints. One of BitBake's main users, OpenEmbedded, takes this core and builds embedded Linux software stacks using a task-oriented approach.
For information about Bitbake, see the OpenEmbedded website: http://www.openembedded.org/
Bitbake plain documentation can be found under the doc directory or its integrated html version at the Yocto Project website: http://yoctoproject.org/documentation
Contributing
Please refer to http://www.openembedded.org/wiki/How_to_submit_a_patch_to_OpenEmbedded for guidelines on how to submit patches, just note that the latter documentation is intended for OpenEmbedded (and its core) not bitbake patches (bitbake-devel@lists.openembedded.org) but in general main guidelines apply. Once the commit(s) have been created, the way to send the patch is through git-send-email. For example, to send the last commit (HEAD) on current branch, type:
git send-email -M -1 --to bitbake-devel@lists.openembedded.org
Mailing list:
http://lists.openembedded.org/mailman/listinfo/bitbake-devel
Source code:
http://git.openembedded.org/bitbake/