From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from yyz.mikelr.com (yyz.mikelr.com [170.75.163.43]) (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 AA05A25745 for ; Sun, 24 Nov 2024 03:10:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.75.163.43 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732417805; cv=none; b=elDIP9BlIp+xJPIu2mhqe9s6Gs4JxD+VAvdjiWDnvbvBi5CpEV20HsNcNV0Wa6Esf1Se/ISWpz3t21XFE7728KJsyBMsXsMjtzXlk0SvhgSSzicHPr4ChMCuTbEEIpTxQn/GvZjT1YoFdzOL30/EQXKqkgGFTQ/iCgUiuu8DNHI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732417805; c=relaxed/simple; bh=TRDCz7rZW73cyfup64t6Wb+A0Uz7Wwtxn/v5XnEXp4Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=VGsEOX5jlSPb41Nr5AeB5YneLxDCnb6SE1iyLozXzsL/A+sd5kpOi8/vKuT53XP2IVTssKmvABsPx9TLPDa8mMC1Vkn6J+azUtx23ZKK2OZdiPGYc/PLWcK7TKZKmIYcbylX0vf6NAM+Xc0TOYgtjkRKcSO9esGKw0I4fReeRcc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=mikelr.com; spf=pass smtp.mailfrom=mikelr.com; arc=none smtp.client-ip=170.75.163.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=mikelr.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mikelr.com Received: from basin.localnet (unknown [IPv6:2607:f2c0:e554:1200:4b8f:795f:f483:85bf]) (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 yyz.mikelr.com (Postfix) with ESMTPSA id 0B70373006; Sat, 23 Nov 2024 22:10:02 -0500 (EST) From: Mikel Rychliski To: Linus Torvalds Cc: David Laight , Andrew Cooper , "bp@alien8.de" , Josh Poimboeuf , "x86@kernel.org" , "linux-kernel@vger.kernel.org" , Arnd Bergmann , Thomas Gleixner , Ingo Molnar , Dave Hansen , "H. Peter Anvin" Subject: Re: [PATCH] x86: Allow user accesses to the base of the guard page Date: Sat, 23 Nov 2024 22:10:01 -0500 Message-ID: <2331683.YKUYFuaPT4@basin> In-Reply-To: References: <680c14b5af9d43d6bc70d2c1e9321e01@AcuMS.aculab.com> <2195976.7Z3S40VBb9@basin> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" On Saturday, November 23, 2024 7:30:06=E2=80=AFP.M. EST Linus Torvalds wrot= e: > So if David's patch fixes your use case, I'm happy to apply it with a > fixed commit message. Thanks, confirmed this case is fixed with David's patch: Tested-by: Mikel Rychliski