Date:   Fri, 10 Dec 2021 12:11:02 -0800 (PST)
From:   Hugh Dickins <hughd@google.com>
To:     Borislav Petkov <bp@alien8.de>
cc:     Mike Rapoport <rppt@kernel.org>, Juergen Gross <jgross@suse.com>,
        John Dorminy <jdorminy@redhat.com>, tip-bot2@linutronix.de,
        anjaneya.chagam@intel.com, dan.j.williams@intel.com,
        linux-kernel@vger.kernel.org, linux-tip-commits@vger.kernel.org,
        stable@vger.kernel.org, x86@kernel.org,
        Hugh Dickins <hughd@google.com>,
        "Patrick J. Volkerding" <volkerdi@gmail.com>
Subject: Re: [tip: x86/urgent] x86/boot: Pull up cmdline preparation and
 early param parsing
In-Reply-To: <YbM5yR+Hy+kwmMFU@zn.tnic>
Message-ID: <297f4912-907-bb45-75df-a030b0d88a8e@google.com>
References: <163697618022.414.12673958553611696646.tip-bot2@tip-bot2> <20211209143810.452527-1-jdorminy@redhat.com> <YbIeYIM6JEBgO3tG@zn.tnic> <50f25412-d616-1cc6-f07f-a29d80b4bd3b@suse.com> <YbIgsO/7oQW9h6wv@zn.tnic> <YbIu55LZKoK3IVaF@kernel.org>
 <YbIw1nUYJ3KlkjJQ@zn.tnic> <YbM5yR+Hy+kwmMFU@zn.tnic>
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Precedence: bulk

On Fri, 10 Dec 2021, Borislav Petkov wrote:
> On Thu, Dec 09, 2021 at 05:37:42PM +0100, Borislav Petkov wrote:
> > Whatever we do, it needs to be tested by all folks on Cc who already
> > reported regressions, i.e., Anjaneya, Hugh, John and Patrick.
> 
> Ok, Mike is busy so here are some patches for testing:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git/log/?h=rc4-boot
> 
> I'd appreciate it if folks who reported an issue, verify those.
> 
> The first two are reverts which should address the issues with mem=
> folks have reported. And the last one should address Anjaneya's issue.
> 
> I guess doing it the way as Mike suggested is cleaner/better.

Yes, mem= works fine for me, on both machines, 64-bit and 32-bit,
thanks; but I'm not exercising the troublesome EFI case at all.

Hugh