From owner-freebsd-stable@FreeBSD.ORG Fri Jan 11 17:49:37 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E381216A417 for ; Fri, 11 Jan 2008 17:49:37 +0000 (UTC) (envelope-from fbsd@opal.com) Received: from smtp.vzavenue.net (smtp.vzavenue.net [66.171.59.140]) by mx1.freebsd.org (Postfix) with ESMTP id 9364413C45B for ; Fri, 11 Jan 2008 17:49:37 +0000 (UTC) (envelope-from fbsd@opal.com) Received: from 98.79.171.66.subscriber.vzavenue.net (HELO homobox.opal.com) ([66.171.79.98]) by smtp.vzavenue.net with ESMTP; 11 Jan 2008 12:49:35 -0500 X-REPUTATION: None X-REMOTE-IP: 66.171.79.98 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Aq4HALI1h0dCq09i/2dsb2JhbACBVqh/ X-IronPort-AV: i="4.24,272,1196658000"; d="asc'?scan'208"; a="174372029:sNHT24066927" Received: from linwhf.opal.com (localhost [127.0.0.1]) (authenticated bits=0) by homobox.opal.com (8.13.8/8.13.8) with ESMTP id m0BHnYYK081273 for ; Fri, 11 Jan 2008 12:49:34 -0500 (EST) (envelope-from fbsd@opal.com) Received: from linwhf.opal.com ([192.168.3.65] helo=linwhf.opal.com) by ASSP-nospam; 11 Jan 2008 12:49:34 -0500 Date: Fri, 11 Jan 2008 12:49:29 -0500 From: "J.R. Oldroyd" To: freebsd-stable@freebsd.org Message-ID: <20080111124929.4aed2471@linwhf.opal.com> In-Reply-To: <4785C9FC.4090102@FreeBSD.org> References: <1199812249.96494.133.camel@predator-ii.buffyverse> <4783C8A8.2090705@raad.tartu.ee> <4783D41B.3000204@FreeBSD.org> <4783D748.1050401@raad.tartu.ee> <4783D824.1050502@FreeBSD.org> <4783DB72.6030605@raad.tartu.ee> <4783DCAA.1080108@FreeBSD.org> <4783EA7E.1050008@raad.tartu.ee> <4783ED15.1060606@FreeBSD.org> <20080109141859.74d08743@linwhf.opal.com> <478522B5.5030101@FreeBSD.org> <20080109235819.7707133d@linwhf.opal.com> <4785C9FC.4090102@FreeBSD.org> X-Mailer: Claws Mail 3.0.2 (GTK+ 2.12.3; i386-portbld-freebsd7.0) Mime-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/9xpJY0HwAiOmdk5JdB=qHxR"; protocol="application/pgp-signature"; micalg=PGP-SHA1 Subject: Re: RELENG_7 2008/01/10 desktop system also periodically freezes X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Jan 2008 17:49:38 -0000 --Sig_/9xpJY0HwAiOmdk5JdB=qHxR Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Thu, 10 Jan 2008 08:32:12 +0100, Kris Kennaway wrote: > > J.R. Oldroyd wrote: > > On Wed, 09 Jan 2008 20:38:29 +0100, Kris Kennaway wr= ote: > >> > >> OK, same requests as to the others then. > >> > >=20 > > I presume you mean hwpmc... >=20 > LOCK_PROFILING, sched_graph, hwpmc. >=20 Quick update on this so that folk know what's going on. Firstly, I've updated the code here to RELENG_7 csup'd yesterday and if I run a "normal" kernel, without debugging, I do see the same freezes with that, too. Secondly, I am unable to process hwpcm dumps using pmcstat because it core dumps when using the "-R" option to decode a dump. I will talk to jkoshy@ about that. I am now running a kernel with LOCK_PROFILING. I am able to create a freeze due to the softupdate activity by removing a large file; a lock profile captured surrounding such a freeze can be seen here: http://opal.com/jr/freebsd/releng_7-freeze/200801111135-softupdate.txt This is easily repeatable. The sequence is: create 1.5GB file sysctl debug.lock.prof.enable=3D1 rm file ... wait, moving mouse until it freezes then unfreezes ... sysctl debug.lock.prof.enable=3D0 sysctl debug.lock.prof.stats Kostik, is this of any help to you? I have yet to experience a "random" freeze not directly attributable to a softupdate while running the lock profiling. I am running with lock profiling on, and resetting the profiling counters once a minute. Yesterday and this morning, I've run for quite a while now with lock profiling on but without a "random" freeze. I'll wait some more, but I'm hoping that enabling the lock profiling hasn't masked the freeze. I'll post again when I see one.. -jr --Sig_/9xpJY0HwAiOmdk5JdB=qHxR Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQFHh6wpls33urr0k4kRAsXdAJ9h67XcwRkRRfmqXjx10yVNXoDS3ACfUArw 5OyxCn3OCc3f2pa/+hWNH0k= =0L4D -----END PGP SIGNATURE----- --Sig_/9xpJY0HwAiOmdk5JdB=qHxR--