From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CB0CF1632EE; Wed, 13 Nov 2024 06:29:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=150.107.74.76 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731479351; cv=none; b=oaMnMR0j4T91wWUps/AB14Eubejqd2ZX7TVQwadtmUW1aQJNhCFjxSbu9mLBWsCvvX6wfUEBD6peCkHXtetDQf0kS/cEzxs+eah+Cl1nmtHEycEHlCRIhPqqY20C8OL+bODcgL/Cft+IW/XftCUM7fxff/06gCOxQXQmFURwJFg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731479351; c=relaxed/simple; bh=KLOTVOoom/sj94CbohhvlCELTlDVVaps7oVMYqeZs3M=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=jETVkA8+4kcLQ8E/NbpFJfa+3vXlUknj2p9SXyY5iv3P6PR3KGxkj6Z6makn+SNMMNH8PSWFWD7wadI0vE5aCL2o1tWKdTcnEVdoYwCD3DboB4iiGJGcw8nyCbEQ2py4DsA7iCwQ5mfiaWlsETVmTNxVsoXaN+xUsGkkynNtE5U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=canb.auug.org.au; spf=pass smtp.mailfrom=canb.auug.org.au; dkim=pass (2048-bit key) header.d=canb.auug.org.au header.i=@canb.auug.org.au header.b=g9AtMkmo; arc=none smtp.client-ip=150.107.74.76 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=canb.auug.org.au Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=canb.auug.org.au Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=canb.auug.org.au header.i=@canb.auug.org.au header.b="g9AtMkmo" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canb.auug.org.au; s=201702; t=1731479340; bh=3y4UTnEYjW3asxooorakrDX715n0Ibp6XSKtFzl63UY=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=g9AtMkmoN3laj9O7jcqqBQ4mT380//KuFHgSvT/CuW0XtDzHKAz5hd2v6Df/vSNTu bmO9d8QbnXt8GM3KIDpkWlEklvms0ZkfJTi8SL47yt9jjQp7uQ2F2ARd3/vQpk5Z5O TrxE1Wxvx1MSFmXNFpojli19jitkpP4QPIeSY6SJn0zWCxFua9eLPLlrdpy19x/9s0 pJiBz+cNPC7NjOUBAM0hbcjk2nozmczIsKzvxz5vjN5uIN+akFv2cLRpBHOvl17jFv To8hnty+ssA8mO9QuBHvh750HXoxPchXvX4hdlSQG2y1KuQkqJhH0x6ZmeZTJ/BPM6 upf5AnTY2lgVA== Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mail.ozlabs.org (Postfix) with ESMTPSA id 4XpCzc1pgWz4x3q; Wed, 13 Nov 2024 17:29:00 +1100 (AEDT) Date: Wed, 13 Nov 2024 17:29:02 +1100 From: Stephen Rothwell To: Paolo Bonzini Cc: Sean Christopherson , KVM , Linux Kernel Mailing List , Linux Next Mailing List Subject: Re: linux-next: build warning after merge of the kvm tree Message-ID: <20241113172902.7ada7d6e@canb.auug.org.au> In-Reply-To: <20241028192945.2f1433fc@canb.auug.org.au> References: <20241028192945.2f1433fc@canb.auug.org.au> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/75US9MYnmmpLFYgZpc9Obal"; protocol="application/pgp-signature"; micalg=pgp-sha256 --Sig_/75US9MYnmmpLFYgZpc9Obal Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, On Mon, 28 Oct 2024 19:29:45 +1100 Stephen Rothwell = wrote: > > After merging the kvm tree, today's linux-next build (htmldocs) produced > this warning: >=20 > Documentation/virt/kvm/locking.rst:157: ERROR: Malformed table. >=20 > +------------------------------------------------------------------------= -+ > | At the beginning:: = | > | = | > | spte.W =3D 0 = | > | spte.Accessed =3D 1 = | > +-------------------------------------+----------------------------------= -+ > | CPU 0: | CPU 1: = | > +-------------------------------------+----------------------------------= -+ > | In mmu_spte_update():: | = | > | | = | > | old_spte =3D *spte; | = | > | | = | > | | = | > | /* 'if' condition is satisfied. */ | = | > | if (old_spte.Accessed =3D=3D 1 && | = | > | old_spte.W =3D=3D 0) | = | > | spte =3D new_spte; | = | > +-------------------------------------+----------------------------------= -+ > | | on fast page fault path:: = | > | | = | > | | spte.W =3D 1 = | > | | = | > | | memory write on the spte:: = | > | | = | > | | spte.Dirty =3D 1 = | > +-------------------------------------+----------------------------------= -+ > | :: | = | > | | = | > | else | = | > | old_spte =3D xchg(spte, new_spte);| = | > | if (old_spte.Accessed && | = | > | !new_spte.Accessed) | = | > | flush =3D true; | = | > | if (old_spte.Dirty && | = | > | !new_spte.Dirty) | = | > | flush =3D true; | = | > | OOPS!!! | = | > +-------------------------------------+----------------------------------= -+ >=20 > Introduced by commit >=20 > 5f6a3badbb74 ("KVM: x86/mmu: Mark page/folio accessed only when zapping= leaf SPTEs") I am still seeing this warning. --=20 Cheers, Stephen Rothwell --Sig_/75US9MYnmmpLFYgZpc9Obal Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmc0Ry4ACgkQAVBC80lX 0GyjxQgAm3DWnQq+aJ2CLsggxTJTxbsrcEEogEUu/kAfbDxHyPiSjoChIhdlviQC nBOCACDjMSA2z6lZjMLqo67uAFZoFlsCoWnPSYoXh+FEgl8uKW3DoeXi1LfC4dwz zG0eRZm9mAqtI14+GcPhqUJAHIfEylvMBka3qeYj/cE0Sgr/wwipIZ7fVyQ1V11J DJ4CHHoB06Rw+FTtCbNh7cU824WZIflC8E0z8db8FyH9EKeJQminf0/Cq64aO+iv eOJpvyhGAfYKFv6S3X+1HaAXfedZ4UGviEgosG2yjIFosqwVDaY1eEO9TaF5fGmj bn8Y+Mxu7DmhSam8iVWL1rJQLiASfg== =OwZ/ -----END PGP SIGNATURE----- --Sig_/75US9MYnmmpLFYgZpc9Obal--