From mboxrd@z Thu Jan 1 00:00:00 1970 From: "santosh.shilimkar@oracle.com" Subject: Re: general protection fault in rds_ib_get_mr Date: Wed, 4 Jul 2018 17:32:20 -0700 Message-ID: <04c882dc-332e-92d6-fe76-b1dd3bedd71c@oracle.com> References: <089e082ce58896ad350567ee4825@google.com> <20180513211058.GE677@sol.localdomain> <27665604-6a26-36e2-3a58-9c8b3d9eab80@oracle.com> <20180704213506.GH725@sol.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Cc: syzbot , davem@davemloft.net, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com To: Eric Biggers , linux-rdma@vger.kernel.org, rds-devel@oss.oracle.com Return-path: In-Reply-To: <20180704213506.GH725@sol.localdomain> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On 7/4/18 2:35 PM, Eric Biggers wrote: > On Sun, May 13, 2018 at 10:46:37PM -0700, santosh.shilimkar@oracle.com wrote: >> On 5/13/18 2:10 PM, Eric Biggers wrote: >>> On Wed, Mar 21, 2018 at 09:00:01AM -0700, syzbot wrote: >> >> [...] >> >> >>> Still reproducible on Linus' tree (commit 66e1c94db3cd4) and linux-next >>> (next-20180511). Here's a simplified reproducer: >>> >> Thanks for the test case !! >> [...] > > Ping; this RDS bug is still unfixed. The same reproducer I gave earlier still > works, even when run as a non-root user. I tested upstream commit > fc36def997cfd6 (v4.18-rc3-113-gfc36def997cfd), and linux-next commit > bce40927669338 (next-20180704). > Yeah I haven't sent a fix for this yet. Downstream we have refactored MR code and I wanted to get that upstream. With that this bug will also get addressed. I was hoping to get that series but since some optimisation is still pending investigations its getting delayed. Will find out if I can fix this panic in meantime with smaller change. Thanks for reminder. Regards, Santosh