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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id B6B29C54E94 for ; Thu, 26 Jan 2023 15:02:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc: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=FXDsF+uR5jPDhqWhUpcVoepgRV9UZwHrAYckV0fHv0c=; b=bgTOR3PjtgmGgi Oqlg3mK6iNpHhS7xCztGMMvvGgCGt+rSNvnT+R3iQXk6EExWs/vjokMl8bh5VPD58byZWC2SjudPD pWUWAPoe2yA+9Zo8TmhKDptImOjvlxKXZ0l57UKLaz0ZJYraCVRnVObtVXYEUONHW4eJm05/4coly ScZ0yDTEWXbaflG2ynv71A8+y/I1qrb1lF5lz+E3KVEAENh3zEJLiaWtxngAMJni2nPyJj3WVxJVv dV0nVgiCm7heB8lms+AT1rGPtUCDHgUisZxY/yltABjjyrltMOyPn1t1gLsQYANnxt67cfr0UH08O I01SLIyEqCMpvWD/r65A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pL3kM-00BMFK-7a; Thu, 26 Jan 2023 15:01:07 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pL3d8-00BJQZ-Qg for linux-arm-kernel@lists.infradead.org; Thu, 26 Jan 2023 14:53:38 +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 36B024B3; Thu, 26 Jan 2023 06:54:14 -0800 (PST) Received: from FVFF77S0Q05N.cambridge.arm.com (FVFF77S0Q05N.cambridge.arm.com [10.1.33.135]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 529803F5A1; Thu, 26 Jan 2023 06:53:31 -0800 (PST) Date: Thu, 26 Jan 2023 14:53:19 +0000 From: Mark Rutland To: Will Deacon Cc: cki-project@redhat.com, xiawu@redhat.com, catalin.marinas@arm.com, bhe@redhat.com, linux-arm-kernel@lists.infradead.org, ardb@kernel.org Subject: Re: ? FAIL (91/181 SKIPPED): Test report for for-kernelci (6.2.0-rc5, arm-next, 2e84eedb) Message-ID: References: <29992.123012504212600261@us-mta-139.us.mimecast.lan> <20230126125202.GA29102@willie-the-truck> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230126125202.GA29102@willie-the-truck> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230126_065335_013006_0C6960C8 X-CRM114-Status: GOOD ( 17.52 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 Thu, Jan 26, 2023 at 12:52:03PM +0000, Will Deacon wrote: > [+Mark and Ard in case they have ideas] > > On Wed, Jan 25, 2023 at 09:21:19AM -0000, cki-project@redhat.com wrote: > > Hi, we tested your kernel and here are the results: > > > > Overall result: FAILED > > Merge: OK > > Compile: OK > > Test: FAILED > > > > > > Kernel information: > > Commit message: Merge branch 'for-next/core' into for-kernelci > > > > You can find all the details about the test run at > > https://datawarehouse.cki-project.org/kcidb/checkouts/66828 > > > > One or more kernel tests failed: > > Unrecognized or new issues: > > aarch64 - kdump - kexec_boot > > Logs: https://datawarehouse.cki-project.org/kcidb/tests/6799495 > > This looks like we run into an undefined instruction when we jump to the > kexec relocation code. Do you know if the failure is reproducible, and is > the log identical each time? > > I'm struggling a bit for ideas at the moment, given that we're not taking > a translation fault so the page-table isn't _completely_ mad. Clearly it's gone well enough to cause an UNDEFINED exception rather than an abort, but it's worth noting that we *do* take a fault within the handler, since: | [12214.505526] Code: bad PC value ... means that aarch64_insn_read() faulted within dump_kernel_instr(). So I'd suspect we've done something UNPREDICTABLE here, or we're missing some barriers and/or synchronization. The log indicates this is a QEMU KVM RM on a ThunderX2 host, so I'll see if I can reproduce this locally... Thanks, Mark. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel