From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 601B0ECAAD1 for ; Tue, 30 Aug 2022 17:59:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232186AbiH3R7M (ORCPT ); Tue, 30 Aug 2022 13:59:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40066 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232285AbiH3R6s (ORCPT ); Tue, 30 Aug 2022 13:58:48 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6534A28E29; Tue, 30 Aug 2022 10:58:15 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 1ABD5B81D44; Tue, 30 Aug 2022 17:58:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0E7B2C433C1; Tue, 30 Aug 2022 17:58:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1661882292; bh=sybPumXRTrZl2VUTu1Lul+2QtsmCj+bXbYY0Ec9V6Nc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=F/kq8cXE+OBDPeYGcLVKD7LAAPXvfffIjNmrdN7JICx0jHC5rZjDtjNXiIMof9XDx Dp89MRx4or0pCiPChJieA4of8rBpgn/z33h54tVBJ8QHqmaEypKUKp/ZrYRK9KHvkI 47eRucrG6j1s1Z3WOFNuEJpDXcIgmIp+f+mXvj+alcSVtpMHkEqBPNY3AkMrfQg3GE eZuP6SCTbpTu/vR1FoYJmEOmCHTf/DPFAp4jm+4fRkbPI2BPb2WhKSHsPl78T9smoI ag8RGM6/MpBEuTq6wDugRaXdm7PzX/iKRvvCSUfj31xRSRIoI17rqwEG9HD1mkEHja CbxX1yn+2BaPA== Date: Tue, 30 Aug 2022 18:58:09 +0100 From: Mark Brown To: Sasha Levin Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, Catalin Marinas , Will Deacon , seanjc@google.com, mark.rutland@arm.com, elver@google.com, david.engraf@sysgo.com, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH AUTOSEL 5.15 14/23] arm64/signal: Raise limit on stack frames Message-ID: References: <20220830172141.581086-1-sashal@kernel.org> <20220830172141.581086-14-sashal@kernel.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="5BnFLNDp644MiSfw" Content-Disposition: inline In-Reply-To: <20220830172141.581086-14-sashal@kernel.org> X-Cookie: Necessity is a mother. Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --5BnFLNDp644MiSfw Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Aug 30, 2022 at 01:21:31PM -0400, Sasha Levin wrote: > From: Mark Brown >=20 > [ Upstream commit 7ddcaf78e93c9282b4d92184f511b4d5bee75355 ] >=20 > The signal code has a limit of 64K on the size of a stack frame that it > will generate, if this limit is exceeded then a process will be killed if I don't believe this is relevant to kernels without SME support. --5BnFLNDp644MiSfw Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmMOT7EACgkQJNaLcl1U h9BqAAf+P0C3w4jbPe9ZwvlXlJ5Lxcz1wmkm/TM/Ybj/OgRPqAlAy8JcHq9TqPDD WxMUfFH8yYktrmFZJfhxOwWOuBpDIMHOebd/7c07LvcOzEEdCzKK3YS1Gb8pv1xJ nsHnONwiWFlsubP7MtJL9NuDO9tSlCK1dqTbWmCpIe7AdnwI0d5yUMcqJYT8rw78 ZFNcjBrrKYcFHE9k1/mZNvxbUEDmKgfOYgmSB7KNEn9JPB4+1UMPpXCuTsgf+aMl UrmpcL3ZHrAFGQ5U2hVhzQLMhqYHFGnmbVYYO6C5fvLYjbZAoIJQEfdBhw0QJdZJ AWNDcwm4RtAEnfekY8ooobBFr69g5A== =E+48 -----END PGP SIGNATURE----- --5BnFLNDp644MiSfw--