Received: by 2002:a05:6902:102b:0:0:0:0 with SMTP id x11csp254534ybt; Fri, 19 Jun 2020 00:50:31 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwQh5UtbYe8Ga9X/VPDJXPN9CFeVhsIztg4SEEnG2zZl575wCUlENrmGyxrGCV8G3aIgT/F X-Received: by 2002:aa7:cd6d:: with SMTP id ca13mr1925391edb.280.1592553031534; Fri, 19 Jun 2020 00:50:31 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1592553031; cv=none; d=google.com; s=arc-20160816; b=WQl2RJkF58W/KEmBB1PgbcYal3LqgkgjePXQL+SQw+AZkGMgaOq0wrLKpVIRBd6GNL 5onxCEJRJ6L5AMFX9zrNDFL0JvoFZka3gEEfg7Mlhz4aTWZbUMuV27HZSrBoNrFoUQGw Lofb6F9rIqiLd+mVv6XJFGd5PyqDUOpOi6s0Bv3g60fztzw0bqPiNThXYWpl2337kkVi WKgj/8t3GnjidaTWsy4IZXU4cJYeM/aMPW58nc4D7HOu27ouPND1RQ5co+nqoEL8G77j ckzISo7SvEXd2lnbiR7T29psfK5HXdCGFERTnuJXS9H5BIuGoAzvpJOCYCagg2o1/82s Y3bQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:user-agent:references :message-id:in-reply-to:subject:cc:to:reply-to:from:date; bh=oUPq3uGpU3UMBpA+1GyxsJ4RAGd6lKjX2mCJl0Jcd9c=; b=ijzIenvgDzHaQ0J5kH10uDtkE8mbTUf7foxfumv45y2OzrCHBgHdCNBlgeLYeGQjTc HAL/5tBjVs77yO2XZhBCkbFuPecNSwkwV6Wv8RJsi98P3ZXX6fTaLPaaAkHo8BdqI50C o2fJWrUzu5KhifJRIn6f+16dyWB/BjxMnOgwutISdjB6wlt33SLCg5vu/HmzxXBLkOF7 EG2hmBAKI/tgkMu/CVzH+UABpE52ZSW335MROozP/CTJlEUnXrdyfftNETbsykNr82l7 7amMYg+Ace8aax7YxHgm55byhT6RP+CRw7Pl4J5p5XysfbfR1SWH0w4ykxMRQ/dogRIB FIxA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id k7si3387081ejr.30.2020.06.19.00.50.08; Fri, 19 Jun 2020 00:50:31 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731047AbgFSHpM (ORCPT + 99 others); Fri, 19 Jun 2020 03:45:12 -0400 Received: from mailbackend.panix.com ([166.84.1.89]:60735 "EHLO mailbackend.panix.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730830AbgFSHpM (ORCPT ); Fri, 19 Jun 2020 03:45:12 -0400 Received: from xps-7390 (cpe-23-242-39-94.socal.res.rr.com [23.242.39.94]) by mailbackend.panix.com (Postfix) with ESMTPSA id 49p9ng23w8zWCb; Fri, 19 Jun 2020 03:45:11 -0400 (EDT) Date: Fri, 19 Jun 2020 00:45:10 -0700 (PDT) From: "Kenneth R. Crudup" Reply-To: "Kenneth R. Crudup" To: Christoph Hellwig cc: Linus Torvalds , linux-kernel@vger.kernel.org Subject: Re: Commit 25f12ae45fc1 ("maccess: rename probe_kernel_address to get_kernel_nofault") causing several OOPSes In-Reply-To: <20200619074233.GA3723@lst.de> Message-ID: References: <20200619065007.GA3041@lst.de> <20200619074233.GA3723@lst.de> User-Agent: Alpine 2.22 (DEB 394 2020-01-19) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 19 Jun 2020, Christoph Hellwig wrote: > Just to re-reconfirm, you had to > revert "maccess: rename probe_kernel_address to get_kernel_nofault", > "maccess: make get_kernel_nofault() check for minimal type compatibility" > wasn't enough? Yeah. the bisect turned up the commit in the subject: and reverting it (only) stopped the crashes. This was this afternoon's (US PST) Linus' master. > Below is a patch to do a "partial revert" for probe_roms.c. I'll give it a shot later, thanks. -Kenny -- Kenneth R. Crudup Sr. SW Engineer, Scott County Consulting, Orange County CA