From mboxrd@z Thu Jan  1 00:00:00 1970
From: gregkh@linuxfoundation.org (Greg KH)
Date: Fri, 5 Jun 2015 07:38:08 +0900
Subject: Change proc/<pid>/cmdline to 8k
In-Reply-To: <95110.1433456291@turing-police.cc.vt.edu>
References: <CAA=4087WKFH0K-dwL5DNY4TJJU=qYUcgHFBJavnAAZ3TZQUxaw@mail.gmail.com>
	<20150604051734.GA20983@kroah.com>
	<CAA=4085vTV7soxrbSsmj1dVgeUDERXqgZPnhLAHKwxavZV+5oQ@mail.gmail.com>
	<20150604080426.GA15541@kroah.com>
	<CAA=4085a+TfEwBtBwsn5tdX6sMLRVZwH45h2RP_WQCVHzs3U1A@mail.gmail.com>
	<20150604220730.GA5667@kroah.com>
	<95110.1433456291@turing-police.cc.vt.edu>
Message-ID: <20150604223807.GA17596@kroah.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On Thu, Jun 04, 2015 at 06:18:11PM -0400, Valdis.Kletnieks at vt.edu wrote:
> On Fri, 05 Jun 2015 07:07:30 +0900, Greg KH said:
> 
> > Applications shouldn't be messing around with the kernel command line.
> 
> He's looking at /proc/<PID>/cmdline, which is a different beast.

Ah, doh, you are right, nevermind...

> Presumably, he's looking at 'ps axwwwwwwwwwww' and still not seeing the
> full process commandline, and that irritates him for some reason...

Yeah, that's not a good thing to rely on to even be correct, as it is
easy for an application to change that value.