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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 B8F8AC282CB for ; Tue, 5 Feb 2019 11:54:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 90AD32080F for ; Tue, 5 Feb 2019 11:54:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726334AbfBELyA (ORCPT ); Tue, 5 Feb 2019 06:54:00 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42082 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726276AbfBELyA (ORCPT ); Tue, 5 Feb 2019 06:54:00 -0500 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 91107E6A99; Tue, 5 Feb 2019 11:54:00 +0000 (UTC) Received: from [172.16.176.1] (ovpn-112-2.rdu2.redhat.com [10.10.112.2]) by smtp.corp.redhat.com (Postfix) with ESMTPS id A5B3126E5E; Tue, 5 Feb 2019 11:53:59 +0000 (UTC) From: "Benjamin Coddington" To: "Cristian Marussi" Cc: "Punit Agrawal" , "Linux NFS Mailing List" Subject: Re: [aarch64] refcount_t: use-after-free in NFS with 64k pages Date: Tue, 05 Feb 2019 06:53:58 -0500 Message-ID: <65CE8FC5-3ADB-4E61-8127-70B979B037A0@redhat.com> In-Reply-To: References: <87va5yvubk.fsf@e105922-lin.cambridge.arm.com> MIME-Version: 1.0 Content-Type: text/plain; format=flowed X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Tue, 05 Feb 2019 11:54:00 +0000 (UTC) Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Hello Cristian and Punit, Did you ever get to the bottom of this one? We just saw this on one run of our 4.18.0-era ppc64le, and I'm wondering if we ever found the root cause. Ben