From: Arnd Bergmann <arnd@arndb.de>
To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: "Greg Kroah-Hartman" <gregkh@suse.de>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] compat_ioctl: Supress "unknown cmd" message on serial /dev/console
Date: Sat, 16 Jan 2010 09:02:40 +0100 [thread overview]
Message-ID: <201001160902.40931.arnd@arndb.de> (raw)
In-Reply-To: <1263133756-27804-1-git-send-email-anemo@mba.ocn.ne.jp>
On Sunday 10 January 2010, Atsushi Nemoto wrote:
> After the commit fb07a5f8 ("compat_ioctl: remove all VT ioctl
> handling"), I got this error message on 64-bit mips kernel with 32-bit
> busybox userland:
>
> ioctl32(init:1): Unknown cmd fd(0) cmd(00005600){t:'V';sz:0} arg(7fd76480) on /dev/console
>
> The cmd 5600 is VT_OPENQRY. The busybox's init issues this ioctl to
> know vt-console or serial-console. If the console was serial console,
> VT ioctls are not handled by the serial driver.
>
> And by quick search, I found some programs using VT_GETMODE to check
> vt-console is available or not.
>
> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Thanks for adding it to your tree, Greg. I'm a bit slow on
email currently, as I'm travelling.
Arnd
prev parent reply other threads:[~2010-01-16 8:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-10 14:29 [PATCH] compat_ioctl: Supress "unknown cmd" message on serial /dev/console Atsushi Nemoto
2010-01-16 8:02 ` Arnd Bergmann [this message]
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