linux-kernel - Re: [PATCH] core_pattern: set core helpers root and namespace to crashing process

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Message-ID: <20121213122048.GF5246@sergelap>
Date:	Thu, 13 Dec 2012 06:20:48 -0600
From:	Serge Hallyn <serge.hallyn@...onical.com>
To:	Neil Horman <nhorman@...driver.com>
Cc:	linux-kernel@...r.kernel.org,
	Daniel Berrange <berrange@...hat.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	containers@...ts.linux-foundation.org
Subject: Re: [PATCH] core_pattern: set core helpers root and namespace to
 crashing process

Quoting Neil Horman (nhorman@...driver.com):
> Theres one problem I currently see with it, and that is that I'm not sure we can
> change the current behavior of how the root fs is set for the pipe reader, lest
> we break some user space expectations. As such, I've added a sysctl in this
> patch to allow administrators to globally select if a core reader specified via
> /proc/sys/kernel/core_pattern should use the global rootfs, or the (possibly)
> chrooted fs of the crashing process.

Practical question:  How is the admin to make an educated decision on
how to set the sysctl?

-serge
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