On Thu, 19 Jul 2012 21:11:44 -0000, Seiji Aguchi said: > [Solution] > To avoid losing a critical message, this patchset is based on a following concept. > - A basic policy is _not_ to overwrite existing entries. > > - However, if kernel panics while a system is rebooting, a critical message > can't be saved by the policy above. > (In this case, panic message is critical.) OK, system boots in "overwrite mode", and when done booting, we go into "non-overwrite mode". Makes sense to me. Only part I'm missing is how/when/why we leave overwrite mode - what makes the change, and how? (If I missed an ioctl or /sys entry or something that userspace toggles to say "I'll take care of it from here", please point me at it and I'll go re-read after I find some more caffeine ;)
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