linux-kernel - RE: [RFC][PATCH 2/2] write callback: Check if existing entry is erasable

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Date:	Thu, 5 Jul 2012 20:03:40 +0000
From:	"Luck, Tony" <tony.luck@...el.com>
To:	Don Zickus <dzickus@...hat.com>,
	Seiji Aguchi <seiji.aguchi@....com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"mikew@...gle.com" <mikew@...gle.com>,
	"Matthew Garrett (mjg@...hat.com)" <mjg@...hat.com>,
	"dle-develop@...ts.sourceforge.net" 
	<dle-develop@...ts.sourceforge.net>,
	Satoru Moriya <satoru.moriya@....com>
Subject: RE: [RFC][PATCH 2/2] write callback: Check if existing entry is
 erasable

>>     - In case where an existing entry is oops/shutdown/halt/poweroff
>>       -  It is erasable if an error ,panic, emergency or oops, happen in new event.
>>            - Oops is erasable because system may still be running and its message may be saved 
>>              into /var/log/messages.
>
> Then why save it to begin with?

It would be useful in the case where an OOPS is followed quickly by a system hang.

-Tony
 
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