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 05015C433F5 for ; Sun, 9 Oct 2022 02:22:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229689AbiJICWI (ORCPT ); Sat, 8 Oct 2022 22:22:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47054 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229552AbiJICWF (ORCPT ); Sat, 8 Oct 2022 22:22:05 -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 79A6830573 for ; Sat, 8 Oct 2022 19:22:03 -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 286B4B80B8E for ; Sun, 9 Oct 2022 02:22:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D1A13C43470; Sun, 9 Oct 2022 02:22:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1665282120; bh=+YAJ9im5jpLBIDI48YO9FH7HB0iS//5wbxzqT1fIHgw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=KfrPxUGkXs6iSspzMj77T6b5X58ICJ3GQmKwY2mLezp1NuJiJFaxVgRydxR1bCI5l pOgZVuHMU8iesU/sdVZFsYtLvrnMOOOHWd8dNeZBBjkf+zC/G50BrpMlYnx0Bv7YkQ NeUcI3GFBkVJJpClIhjOM2CMzHpoMQfVsslRK/7+LhfpBe/uJw49T4Il4j/uKU2uKg O/bBci/cHrtU4HFlSMcn0SboNFNvGsFq8hnt3V7brEAYGnUUTOgoDznLRbgWUQvrXb 95+uDgOIJ6VcnUtsRkf7Cb0RYfQy5v8kp24Hy1zSOXI1LjeD9vRA1iLNq+Bn9Gl8ft FpRQFjXrttu5A== Received: from [156.39.10.100] (helo=wait-a-minute.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1ohLx0-00FLAW-A0; Sun, 09 Oct 2022 03:21:58 +0100 Date: Sun, 09 Oct 2022 03:20:59 +0100 Message-ID: <87sfjxhh4k.wl-maz@kernel.org> From: Marc Zyngier To: Denis Nikitin Cc: Catalin Marinas , Will Deacon , James Morse , Alexandru Elisei , Nick Desaulniers , David Brazdil , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, Manoj Gupta Subject: Re: [PATCH v2] KVM: arm64: nvhe: Fix build with profile optimization In-Reply-To: References: <20220920082005.2459826-1-denik@chromium.org> <20220922053145.944786-1-denik@chromium.org> <87h70zk83g.wl-maz@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 156.39.10.100 X-SA-Exim-Rcpt-To: denik@chromium.org, catalin.marinas@arm.com, will@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com, ndesaulniers@google.com, dbrazdil@google.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, manojgupta@google.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 06 Oct 2022 17:28:17 +0100, Denis Nikitin wrote: > > Hi Mark, s/k/c/ > > This problem currently blocks the PGO roll on the ChromeOS kernel and > we need some kind of a solution. I'm sorry, but I don't feel constrained by your internal deadlines. I have my own... > Could you please take a look? I have asked for a reproducer. All I got for an answer is "this is hard". Providing a profiling file would help, for example. M. -- Without deviation from the norm, progress is not possible.