From: Joel Becker <Joel.Becker@oracle.com>
To: Louis Rilling <Louis.Rilling@kerlabs.com>
Cc: ocfs2-devel@oss.oracle.com, linux-kernel@vger.kernel.org
Subject: Re: [RFC] configfs: module reference counting rules
Date: Mon, 16 Jun 2008 12:36:14 -0700 [thread overview]
Message-ID: <20080616193614.GB6441@mail.oracle.com> (raw)
In-Reply-To: <20080616181428.GW30804@localhost>
On Mon, Jun 16, 2008 at 08:14:28PM +0200, Louis Rilling wrote:
> With a preemptible kernel, after module_put(self) the few assembly instructions
> cleaning up the stack before returning to the caller can be called after the
> memory allocated for the module has been freed. Which will make the kernel
> crash.
Ahh, but if you are running a preemptible kernel, you've already
made your first mistake :-)
Joel
--
"Vote early and vote often."
- Al Capone
Joel Becker
Principal Software Developer
Oracle
E-mail: joel.becker@oracle.com
Phone: (650) 506-8127
prev parent reply other threads:[~2008-06-16 19:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-12 23:54 Louis Rilling
2008-06-13 3:33 ` Joel Becker
2008-06-13 9:51 ` Louis Rilling
2008-06-13 20:26 ` Joel Becker
2008-06-13 22:27 ` Louis Rilling
2008-06-14 8:47 ` Joel Becker
2008-06-16 12:39 ` Louis Rilling
2008-06-16 18:06 ` Joel Becker
2008-06-16 18:14 ` Louis Rilling
2008-06-16 19:36 ` Joel Becker [this message]
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