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Thu, 03 Dec 2020 12:31:49 -0500 X-MC-Unique: uay9NePCNpafdACGdNGn2A-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0ED24802B47; Thu, 3 Dec 2020 17:31:48 +0000 (UTC) Received: from ovpn-66-132.rdu2.redhat.com (unknown [10.10.67.132]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6007D18A60; Thu, 3 Dec 2020 17:31:47 +0000 (UTC) Message-ID: Subject: Re: [PATCH 3/7] powerpc/64s: flush L1D after user accesses From: Qian Cai To: Daniel Axtens , linuxppc-dev@lists.ozlabs.org Date: Thu, 03 Dec 2020 12:31:46 -0500 In-Reply-To: References: <20201119231333.361771-1-dja@axtens.net> <20201119231333.361771-4-dja@axtens.net> Mime-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=qcai@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Mailman-Approved-At: Fri, 04 Dec 2020 07:56:02 +1100 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: cmr@informatik.wtf, spoorts2@in.ibm.com, npiggin@gmail.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Thu, 2020-12-03 at 12:17 -0500, Qian Cai wrote: > A simple "echo t > /proc/sysrq-trigger" will trigger this warning almost > endlessly on Power8 NV. Correction -- POWER9 NV.