linux-kernel - Re: [patch] pipe: Don't oops when pipe filesystem isn't mounted

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Message-ID: <457D39A2.1070802@garzik.org>
Date:	Mon, 11 Dec 2006 05:57:38 -0500
From:	Jeff Garzik <jeff@...zik.org>
To:	Andrew Morton <akpm@...l.org>
CC:	Al Viro <viro@....linux.org.uk>,
	Andrew MChuck Ebbert <76306.1226@...puserve.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"Linus Torvalds orton <akpm@...l.org>" <torvalds@...l.org>
Subject: Re: [patch] pipe: Don't oops when pipe filesystem isn't mounted

Andrew Morton wrote:
> A heck of a lot of things can trigger an /sbin/hotplug run.  It could well
> be that Andrew's driver didn't want to run hotplug at all, but the kernel
> did it anwyay.  But as soon as the script appeared at /sbin/hotplug, and it
> happened to use foo|bar: boom.

In fact, <many> things run /sbin/hotplug but don't necessarily need to :/

I think bcrl used a counter one time, and saw over 1000 /sbin/hotplug 
executions during a single boot.

	Jeff


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