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From:   Arvind Sankar <nivedita@alum.mit.edu>
Date:   Wed, 1 Jan 2020 12:59:32 -0500
To:     youling 257 <youling257@gmail.com>
Cc:     Dominik Brodowski <linux@dominikbrodowski.net>,
        Arvind Sankar <nivedita@alum.mit.edu>,
        torvalds@linux-foundation.org, linux-kernel@vger.kernel.org,
        viro@zeniv.linux.org.uk
Subject: Re: [PATCH] early init: open /dev/console with O_LARGEFILE
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On Wed, Jan 01, 2020 at 09:27:27PM +0800, youling 257 wrote:
> Unfortunately, test this patch still no help, has system/bin/sh warning.
> 

Just to confirm, the only change needed to make the warning go away is
reverting the single commit 8243186f0cc7 ("fs: remove ksys_dup()")?

I don't get how that thing, even if it gets something wrong, impacts the
shell on a virtual console, which should be a long way downstream from
the init process that got handed /dev/console.