On 4/23/07, Paul Jackson <[EMAIL PROTECTED]> wrote:
One more question - why would I want to do this?
Check out the FAQ in Documentation/power/swsusp.txt.
Is this like something that would be useful on a laptop, to suspend activity and reduce battery drain, while preserving the current state of ones sessions and avoiding having to logout or shutdown?
Yes, the original purpose for the inclusion of the freezer code was to support suspend-resume (mainly for laptops, but suspend-resume could be useful in other circumstances too, see the FAQ).
Is it useful for quietting a system down before doing hot plug or unplug of key components, such as processors and memory?
Yes, the freezer is (proposed to be, at least) moving on from being merely a suspend-resume-only thing to other usage scenarios, such as kprobes and hotlpug. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/