[Ocfs2-devel] [RFC] configfs: module reference counting rules
Joel Becker
Joel.Becker at oracle.com
Mon Jun 16 12:36:14 PDT 2008
On Mon, Jun 16, 2008 at 08:14:28PM +0200, Louis Rilling wrote:
> With a preemptible kernel, after module_put(self) the few assembly instructions
> cleaning up the stack before returning to the caller can be called after the
> memory allocated for the module has been freed. Which will make the kernel
> crash.
Ahh, but if you are running a preemptible kernel, you've already
made your first mistake :-)
Joel
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Joel Becker
Principal Software Developer
Oracle
E-mail: joel.becker at oracle.com
Phone: (650) 506-8127
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