From owner-svn-src-head@freebsd.org Tue Dec 12 20:09:55 2017 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A7DE2E83003; Tue, 12 Dec 2017 20:09:55 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from hz.grosbein.net (hz.grosbein.net [78.47.246.247]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hz.grosbein.net", Issuer "hz.grosbein.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 38B0E7034B; Tue, 12 Dec 2017 20:09:54 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from eg.sd.rdtc.ru (root@eg.sd.rdtc.ru [62.231.161.221] (may be forged)) by hz.grosbein.net (8.15.2/8.15.2) with ESMTPS id vBCK9oZG018965 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 12 Dec 2017 21:09:51 +0100 (CET) (envelope-from eugen@grosbein.net) X-Envelope-From: eugen@grosbein.net X-Envelope-To: jhb@FreeBSD.org Received: from eg.sd.rdtc.ru (eugen@localhost [127.0.0.1]) by eg.sd.rdtc.ru (8.15.2/8.15.2) with ESMTP id vBCK9kdn009716; Wed, 13 Dec 2017 03:09:46 +0700 (+07) (envelope-from eugen@grosbein.net) Subject: Re: svn commit: r326758 - in head/sys/i386: conf include To: John Baldwin , Konstantin Belousov , Conrad Meyer References: <201712110432.vBB4WbnE021090@repo.freebsd.org> <20171211091943.GF2272@kib.kiev.ua> <5A2E5D44.9030904@grosbein.net> <4a9c76c9-8063-9420-b198-14487b089840@FreeBSD.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org From: Eugene Grosbein Message-ID: <5A30378A.3040609@grosbein.net> Date: Wed, 13 Dec 2017 03:09:46 +0700 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 In-Reply-To: <4a9c76c9-8063-9420-b198-14487b089840@FreeBSD.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=2.2 required=5.0 tests=BAYES_00, LOCAL_FROM, RDNS_NONE, T_DATE_IN_FUTURE_96_Q autolearn=no autolearn_force=no version=3.4.1 X-Spam-Report: * 0.0 T_DATE_IN_FUTURE_96_Q Date: is 4 days to 4 months after Received: * date * -2.3 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * 2.6 LOCAL_FROM From my domains * 1.9 RDNS_NONE Delivered to internal network by a host with no rDNS X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on hz.grosbein.net X-Spam-Level: ** X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Dec 2017 20:09:55 -0000 On 13.12.2017 02:32, John Baldwin wrote: > Certainly for MIPS I have found that compiling with clang > instead of gcc for mips64 gives a kernel that panics for stack overflow for any > use of NFS. It might be that this is due to something MIPS-specific, but it > might be worthwhile retesting with kstack_pages=2 and building the kernel > with CROSS_TOOLCHAIN=i386-gcc after installing the appropriate package. You may want to check NFS code that uses stack heavily. Here are numbers for i386 (bytes-on-stack, module, what function): 1344 nfs_nfsdport.o : 1152 nfs_nfsdserv.o : 1128 nfs_nfsdserv.o : 952 nfs_nfsdserv.o : 664 nfs_nfsdserv.o : 640 nfs_nfsdserv.o : 624 nfs_nfsdserv.o : 608 nfs_nfsdserv.o : 600 nfs_clvfsops.o :