Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Sat, 29 Oct 2022 12:45:19 +0300
From:   Alexey Dobriyan <adobriyan@gmail.com>
To:     Bagas Sanjaya <bagasdotme@gmail.com>
Cc:     tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
        dave.hansen@linux.intel.com, hpa@zytor.com,
        linux-kernel@vger.kernel.org, x86@kernel.org
Subject: Re: [PATCH] selftests/x86: add "ffff8" -- kernel memory scanner
Message-ID: <Y1z2L8aAq7sOWxQT@p183>
References: <Y1wunXB2iv0QHr22@p183>
 <Y1yMlEqtiQwUoy9m@debian.me>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
In-Reply-To: <Y1yMlEqtiQwUoy9m@debian.me>
Precedence: bulk

On Sat, Oct 29, 2022 at 09:14:44AM +0700, Bagas Sanjaya wrote:
> On Fri, Oct 28, 2022 at 10:33:49PM +0300, Alexey Dobriyan wrote:
> > 
> > I've tested it with kernel patch which installs rogue page and it was found.
> > 
> > 	$ ./a.out -h
> > 	usage: ./a.out [-f] [-r] [-n N] [-s S]
> > 	        -f: sequential scan
> > 	        -r: random scan (default)
> > 	        -n: use N threads (default: $(nproc))
> > 	        -s: lowest address shift (default: 47)
> > 	        -t: time to run (default: 256 seconds)
> > 
> > Intended usages are:
> > 
> > 	$ ./a.out -f		# full scan on all cores
> > or
> > 	$ ./a.out -r -t ...	# time limited random scan for QA test
> > 
> 
> The executable name is a.out, really?

This is copypasta from my internal git.

It will be named ffff8_64 by the build system.