From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: patch "libata: Add support for SCT Write Same" breaks system Date: Fri, 9 Sep 2016 11:16:07 -0400 Message-ID: <20160909151607.GA19609@htj.duckdns.org> References: <20160908192736.GA4356@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-yw0-f195.google.com ([209.85.161.195]:34028 "EHLO mail-yw0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751212AbcIIPQJ (ORCPT ); Fri, 9 Sep 2016 11:16:09 -0400 Content-Disposition: inline In-Reply-To: <20160908192736.GA4356@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Mike Krinkin Cc: shaun@tancheff.com, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, jejb@linux.vnet.ibm.com, martin.petersen@oracle.com, hch@lst.de, shaun.tancheff@seagate.com Hello, On Thu, Sep 08, 2016 at 10:27:37PM +0300, Mike Krinkin wrote: > Hi, > > i tried recent linux-next on my laptop, and after boot system is > almost unusable because most of apps just crash with segfaults and > in dmesg output there are a lot of errors like this: ... > git bisect points at commit 7b20309428598df00ffe ("libata: Add support for SCT > Write Same". I temporary fixed problem with the following change: Shaun, any ideas? If this isn't an easy fix, I'm gonna disable write_same for all devices for now. Thanks. -- tejun