Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932173AbaDVUdd (ORCPT ); Tue, 22 Apr 2014 16:33:33 -0400 Received: from mx1.redhat.com ([209.132.183.28]:12027 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757638AbaDVUcz (ORCPT ); Tue, 22 Apr 2014 16:32:55 -0400 Date: Tue, 22 Apr 2014 16:32:44 -0400 From: Dave Jones To: Hugh Dickins Cc: Linus Torvalds , Linux Kernel , linux-mm Subject: Re: 3.15rc2 hanging processes on exit. Message-ID: <20140422203244.GA30757@redhat.com> Mail-Followup-To: Dave Jones , Hugh Dickins , Linus Torvalds , Linux Kernel , linux-mm References: <20140422180308.GA19038@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 22, 2014 at 01:17:33PM -0700, Hugh Dickins wrote: > Your patch looks to me correct and to the point; but I agree that > we haven't made a relevant change there recently, so I suppose it > comes from a trinity improvement rather than a new bug in 3.15. > > (Dave, do you have time to confirm that by running new trinity on 3.14?) I can give it a shot. I think perhaps a bigger reason why this might be only just turning up, is that I now have an upper bound on the number of entries in an iovec at 256 entries. So now there's more chance that we'll generate an iovec that a syscall can actually use instead of us running out of memory trying to satisfy every entry and constructing a broken iovec struct if we hit ENOMEM Dave -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/