linux-kernel - Re: [PATCH 4/5] don't panic if /sbin/init exits or killed

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Date:	Fri, 28 Mar 2008 22:47:56 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Oleg Nesterov <oleg@...sign.ru>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Davide Libenzi <davidel@...ilserver.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Ingo Molnar <mingo@...e.hu>,
	Laurent Riffard <laurent.riffard@...e.fr>,
	Pavel Emelyanov <xemul@...nvz.org>,
	Roland McGrath <roland@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/5] don't panic if /sbin/init exits or killed

Oleg Nesterov wrote:
> If the buggy init exits, the kernel panics. I see no point for this. It is very
> possible that the system is still usable enough, at least to read the logs and
> prepare the bug report.
> 
> Change exit_child_reaper() to do BUG() instead of panic().
> 
> Signed-off-by: Oleg Nesterov <oleg@...sign.ru>

This would be highly undesirable in a production system, since it would 
leave the machine an unusable zombie.  In a production system, the panic 
can be made to reboot the system, bringing it back online.

	-hpa

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