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Date:   Fri, 26 Aug 2022 18:43:53 +0100
From:   Will Deacon <will@kernel.org>
To:     Mikulas Patocka <mpatocka@redhat.com>
Cc:     Ard Biesheuvel <ardb@kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Alan Stern <stern@rowland.harvard.edu>,
        Andrea Parri <parri.andrea@gmail.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Boqun Feng <boqun.feng@gmail.com>,
        Nicholas Piggin <npiggin@gmail.com>,
        David Howells <dhowells@redhat.com>,
        Jade Alglave <j.alglave@ucl.ac.uk>,
        Luc Maranget <luc.maranget@inria.fr>,
        "Paul E. McKenney" <paulmck@kernel.org>,
        Akira Yokosawa <akiyks@gmail.com>,
        Daniel Lustig <dlustig@nvidia.com>,
        Joel Fernandes <joel@joelfernandes.org>,
        linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Subject: Re: [PATCH] wait_on_bit: add an acquire memory barrier
Message-ID: <20220826174352.GA20386@willie-the-truck>
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On Fri, Aug 26, 2022 at 10:08:42AM -0400, Mikulas Patocka wrote:
> On Fri, 26 Aug 2022, Mikulas Patocka wrote:
> > On Fri, 26 Aug 2022, Will Deacon wrote:
> > > On Thu, Aug 25, 2022 at 05:03:40PM -0400, Mikulas Patocka wrote:
> > > > For me, the kernel 6.0-rc2 doesn't boot in an arm64 virtual machine at all 
> > > > (with or without this patch), so I only compile-tested it on arm64. I have 
> > > > to bisect it.
> > > 
> > > It's working fine for me and I haven't had any other reports that it's not
> > > booting. Please could you share some more details about your setup so we
> > > can try to reproduce the problem?
> > 
> > I'm bisecting it now. I'll post the offending commit when I'm done.
> 
> So, the bad commit is aacd149b62382c63911060b8f64c1e3d89bd405a ("arm64: 
> head: avoid relocating the kernel twice for KASLR").

Thanks. Any chance you could give this a go, please?

https://lore.kernel.org/r/20220826164800.2059148-1-ardb@kernel.org

Will