linux-kernel - Re: Can we move device drivers into user-space?

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Message-ID: <CAG4AFWYJj8BJq=QiNixb+tmWskgBzoPwGbREqn_s+bQkBO25ng@mail.gmail.com>
Date:	Fri, 24 Feb 2012 12:21:27 -0500
From:	Jidong Xiao <jidong.xiao@...il.com>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: Can we move device drivers into user-space?

On Fri, Feb 24, 2012 at 12:13 PM, Greg KH <gregkh@...uxfoundation.org> wrote:
> On Fri, Feb 24, 2012 at 12:06:54PM -0500, Jidong Xiao wrote:
>> On Fri, Feb 24, 2012 at 11:54 AM, Greg KH <gregkh@...uxfoundation.org> wrote:
>> >> As to "Linux isn't a microkernel", even though the debate between
>> >> Linux and microkernel have never stopped,
>> >
>> > Um, who is having such a debate?  We aren't, so I don't think the debate
>> > has ever started.
>> >
>>
>> Here is the classic debate between Andrew S. Tanenbaum and Linus Torvalds:
>> http://en.wikipedia.org/wiki/Tanenbaum%E2%80%93Torvalds_debate
>
> That was 20 years ago, to assume that anyone rational was still having
> that debate today is insane.
>

You probably missed the second paragraph.

"This subject was revisited in 2006 after Tanenbaum wrote a cover
story for Computer magazine titled "Can We Make Operating Systems
Reliable and Secure?".[3] While Tanenbaum himself has mentioned that
he did not write the article to renew the debate on kernel design,[4]
the juxtaposition of the article and an archived copy of the 1992
debate on the technology site Slashdot caused the subject to be
rekindled.[5] Torvalds posted a rebuttal of Tanenbaum's arguments via
an online discussion forum,[6] and several technology news sites began
reporting the issue.[7] This prompted Jonathan Shapiro to respond that
most of the field-proven reliable and secure computer systems use a
more microkernel-like approach.[8]"
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