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=-2.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 F4083CA9EC0 for ; Mon, 28 Oct 2019 20:02:31 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 C8BFB20862 for ; Mon, 28 Oct 2019 20:02:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="qf90pQGZ"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="W/LyFiWC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C8BFB20862 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-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=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=sRiFso53r1NfHTdnzVADDJ4GqsmhtUv8s1PSWfUvMZ4=; b=qf90pQGZLRdC9c lEqW6jkTroBGEVkFyaC6BcrYxLl+fsXO30FtO56utyj7QtPuT0DuQXvcKWQdfm/nGYdm1tnMOi/Kc sOZ57iTcbJmxRcktdhrSuIG2kIkf0GBl8OS8+Uyd1LYT/shx7+HCbht3//ZnMveJPYD10t4ahw4ra +JiDe1dTR3ch4B50HhGnrqULJl4JM6UVhZ9f2irUHtl4T5QqDc80UGNfmWkQ3GMTS+y2ExQlC7T34 eswKjhfmWDNSQNXFhfG6EYolcWdLFmay7pJPdgmEoCysIYQuQvoSGifNttnAvkxaoKGwV3weWJ8td 4xYenG7AKJRzye7V7uJw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iPBDe-0005ib-6D; Mon, 28 Oct 2019 20:02:26 +0000 Received: from mail-pg1-x541.google.com ([2607:f8b0:4864:20::541]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iPBDb-0005hb-1R for linux-arm-kernel@lists.infradead.org; Mon, 28 Oct 2019 20:02:24 +0000 Received: by mail-pg1-x541.google.com with SMTP id p1so7657114pgi.4 for ; Mon, 28 Oct 2019 13:02:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=ZWh1WnHpSXynBwrGzEFdFS9dRaewgmpRz4cunacZkKY=; b=W/LyFiWCHVPxquHdd0jTr8+JG7XYRbQxGEDNVjf8MV4mQElYTsV8ePZkxAzktIHuCv NQSvIoYxVf4YtZxVlcgbG/z+IhIKCnEuLmZlYT9Vhq5tLITt04WSQL1WzLGZ0B9TZWu2 Lf8ndycAMO3pfIrn17MaeD0PAKEZxRxNtJxoCssLqgrxZ9MfW9cGBwKkjkyPFd6vhG9N qro3IztbZH9pfkQeB+yCFIEQ5BAjPGi7lggkQlf3X8X8+26x6Qd8tr6MIpKHcX8sR47q lQMM261xup6M+USOO7c9obMzf9o4WAasye5rr36DcVzyZtxVF9z4zTns+FvIoW6RSwEn oppA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=ZWh1WnHpSXynBwrGzEFdFS9dRaewgmpRz4cunacZkKY=; b=MGRVNleddikKR2zpOWVM3jsBsUumSmof/k8vhcHXpgMTPnSJbbvGLHz3CqO5u8VwGT Beqayny5ROPvodFjNsqXYwazz/mxj7x2C6fUqf896s7XzhQWsLlsDhcVkC0IQyJaaHyU 2KQdHgWCl9pfvwM9DqKhWfD31YtglyuiSJxaAvDI2xEVOxKaL/IQHtNMgZLDROC1Vosv hDwDOEHVKiquK5dnyqGMibBrIN/JyLExCxTxjsHTbAyc2XHmT4AiXmPPs29zFniMpnIU w8yxumFm4rIkyTJ8xFOjbuHxzA2yR8bjOBgJl4j6bz/WyJc7Ga+kvuQ6wKuJj7XXjs5l eapw== X-Gm-Message-State: APjAAAUoUwSE7vwnAwSRmOJgBN6dKBuaXWy1xiLbMCzdxKopz7U79naU +DT13AjyFGqCVnlzt87uKaTANQ== X-Google-Smtp-Source: APXvYqwvp8vwl59NpJT1UZnwdTf8HHV5pewkT1sXqeB3J6wVvLcceNA8x/1R5lRGssfa9YY6woUpEQ== X-Received: by 2002:a63:d0f:: with SMTP id c15mr22945597pgl.313.1572292942160; Mon, 28 Oct 2019 13:02:22 -0700 (PDT) Received: from minitux (104-188-17-28.lightspeed.sndgca.sbcglobal.net. [104.188.17.28]) by smtp.gmail.com with ESMTPSA id q23sm316379pjd.2.2019.10.28.13.02.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Oct 2019 13:02:21 -0700 (PDT) Date: Mon, 28 Oct 2019 13:02:19 -0700 From: Bjorn Andersson To: Mark Brown Subject: Re: next/master boot: 257 boots: 8 failed, 237 passed with 8 offline, 2 untried/unknown, 2 conflicts (next-20191028) Message-ID: <20191028200219.GS571@minitux> References: <5db7032c.1c69fb81.888b0.b521@mx.google.com> <20191028174857.GG5015@sirena.co.uk> <20191028184019.GR571@minitux> <20191028191121.GH5015@sirena.co.uk> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20191028191121.GH5015@sirena.co.uk> User-Agent: Mutt/1.12.2 (2019-09-21) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191028_130223_089419_4887F731 X-CRM114-Status: GOOD ( 16.64 ) 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: kernel-build-reports@lists.linaro.org, linux-arm-msm@vger.kernel.org, Andy Gross , linux-next@vger.kernel.org, Catalin Marinas , Will Deacon , 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+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon 28 Oct 12:11 PDT 2019, Mark Brown wrote: > On Mon, Oct 28, 2019 at 11:40:19AM -0700, Bjorn Andersson wrote: > > On Mon 28 Oct 10:48 PDT 2019, Mark Brown wrote: > > > On Mon, Oct 28, 2019 at 08:03:08AM -0700, kernelci.org bot wrote: > > > > Today's -next (anf Friday's) fails to boot on db820c: > > > > > defconfig: > > > > gcc-8: > > > > apq8096-db820c: 1 failed lab > > > > It looks like it deadlocks somewhere, the last things in the log are a > > > failure to start ufshcd-qcom and then an RCU stall some time later: > > > db820c has been failing intermittently for a while now, it seems that > > booting with kpti enabled causes something to go wrong. There are > > nothing strange in the kernel logs and ftrace seems to indicate that all > > the CPUs are idling nicely. > > Oh dear. Adding Catalin and Will. Is it definitely KPTI that's > triggering stuff? It did turn up some bugs on other systems, though > it's a bit strange it's only manifesting in KernelCI... I did a test recently where I booted my db820c 100 times with kpti=yes and 100 times with kpti=no on the kernel command line, and the result was 90% failure to reach console vs 0%. Going back and looking at the logs for the 10% indicated that the boot CPU was fine, but I had stalls reported on other CPUs. In an effort to rule out driver bugs I reduced the DT to CPUs, the core clocks, gic, timers and serial driver, and I still saw the problem. I have not looked at this with jtag and hence do not know what secure world is doing. Regards, Bjorn _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel