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 X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D5521C433E0 for ; Mon, 3 Aug 2020 11:50:26 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9C5EF2076C for ; Mon, 3 Aug 2020 11:50:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="QzFsdHVO" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9C5EF2076C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:In-reply-to:Subject:To: From:References:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=juYRLys0ub8FlVr7+vH/L9/9lGO9gT3PTHLT+JJsIdM=; b=QzFsdHVORF5yZMRLtbp1vppnk tJy//g24dLhKvdB0fC0MJwCS3bgi54oHV/YDAXBHknBAtBshwdkr2q2xRNtsXWbxjsL54P5p0fMA/ l359b8exMbqPKRbfCz5K9uSLnd+Ym2nLceKUTfUrLCE5/gEpfAukPkCs4OX0TpRD4XuBTsrjl7V6G PYWJkeA+aV7HLHJNJkeKzQA29a35ee6FZ+IPD79FMvEa7RmFAro82mf4iFDoSL9sD7TQkHbwsIqJR ghAoCzuTjbgJYjs6sJhFVFHXFSuAU3eVcZpPGoX0304lfrErLgUeWP2WscXVFyV1EJlWj5EU2b8NB VOMSaqtQw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k2YxV-0008M7-G9; Mon, 03 Aug 2020 11:48:49 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k2YxS-0008Kv-BA for linux-arm-kernel@lists.infradead.org; Mon, 03 Aug 2020 11:48:47 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1775F30E; Mon, 3 Aug 2020 04:48:42 -0700 (PDT) Received: from e113632-lin (e113632-lin.cambridge.arm.com [10.1.194.46]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 33F5C3F71F; Mon, 3 Aug 2020 04:48:40 -0700 (PDT) References: <20200729033934.22349-1-alison.wang@nxp.com> <877dumbtoi.fsf@kurt> <20200729094943.lsmhsqlnl7rlnl6f@skbuf> <87mu3ho48v.fsf@kurt> <20200730082228.r24zgdeiofvwxijm@skbuf> <873654m9zi.fsf@kurt> <20200803081625.czdfwcpw5emcd4ls@skbuf> <20200803113841.pqqpo4hqfwru3upq@skbuf> User-agent: mu4e 0.9.17; emacs 26.3 From: Valentin Schneider To: Vladimir Oltean Subject: Re: [RFC PATCH] arm64: defconfig: Disable fine-grained task level IRQ time accounting In-reply-to: <20200803113841.pqqpo4hqfwru3upq@skbuf> Date: Mon, 03 Aug 2020 12:48:35 +0100 Message-ID: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200803_074846_514178_046D4302 X-CRM114-Status: GOOD ( 12.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marc Zyngier , paulmck@kernel.org, Robin Murphy , Alison Wang , linux-kernel@vger.kernel.org, leoyang.li@nxp.com, vladimir.oltean@nxp.com, will@kernel.org, catalin.marinas@arm.com, Kurt Kanzenbach , Thomas Gleixner , mw@semihalf.com, Anna-Maria Gleixner , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 03/08/20 12:38, Vladimir Oltean wrote: > On Mon, Aug 03, 2020 at 10:51:32AM +0100, Robin Murphy wrote: >> >> Having glanced across another thread that mentions IRQ accounting >> recently[1], I wonder if the underlying bug here might have something do to >> with the stuff that Marc's trying to clean up. >> >> Robin. >> >> [1] https://lore.kernel.org/linux-arm-kernel/20200624195811.435857-16-maz@kernel.org/ > > Thanks Robin. I've applied Marc's "[PATCH v2 00/17] arm/arm64: Turning > IPIs into normal interrupts" series and the LS1028A I'm debugging hangs > in absolutely the same way. > I'm not too surprised by that, wrt accounting this mostly changes where the stores go to and barely shuffles when they happen (slightly earlier on the IPI handling path). FWIW I've had 'stress-ng --hrtimers 1' running on my Juno and eMAG for ~15 minutes and haven't had a splat yet. > -Vladimir _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel