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documentation: update guidance for runqemu

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Testing SELinux on QEMU occasionally results in OOM conditions during a
relabel from time to time.  Update the documentation to warn about this
and suggest a way to avoid the situation.

Signed-off-by: Joe MacDonald <joe@deserted.net>
This commit is contained in:
Joe MacDonald 2013-09-24 14:41:00 -04:00
parent 1f23fb218e
commit 91fc10df2f
1 changed files with 8 additions and 0 deletions
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SELinux-FAQ
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@ -111,6 +111,14 @@ For example, when you are using qemu targets,
$ runqemu qemumips core-image-selinux ext3 nographic bootparams="selinux=0"
The initial filesystem relabel step requires considerable memory and can result
in unexpected, sometimes impossible to reproduce, failures if an OOM condition
occurs while it is in progress. Therefore you should consider allocating at a
minimum 512MB of RAM to your qemu image. 1GB or more is recommended. This is
accomplished by adding qemuparams="-m 1024" to your runqemu options.
The defaults for various platforms vary, though it is usually around 256MB.
3.2 - How do I turn enforcing mode on/off?
You can specify the SELinux mode in /etc/selinux/config.