Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751045AbWJRKFw (ORCPT ); Wed, 18 Oct 2006 06:05:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932143AbWJRKFw (ORCPT ); Wed, 18 Oct 2006 06:05:52 -0400 Received: from ozlabs.org ([203.10.76.45]:1739 "EHLO ozlabs.org") by vger.kernel.org with ESMTP id S1751045AbWJRKFu (ORCPT ); Wed, 18 Oct 2006 06:05:50 -0400 Subject: Re: 2.6.19-rc2-mm1 From: Michael Ellerman Reply-To: michael@ellerman.id.au To: Andrew Morton Cc: Jeremy Fitzhardinge , linux-kernel@vger.kernel.org, Paul Mackerras , Benjamin Herrenschmidt , Rusty Russell In-Reply-To: <20061017132245.12499c1d.akpm@osdl.org> References: <20061016230645.fed53c5b.akpm@osdl.org> <4535310C.40708@goop.org> <20061017132245.12499c1d.akpm@osdl.org> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-xO0IaBYpQdhczhnTKZTc" Date: Wed, 18 Oct 2006 20:05:48 +1000 Message-Id: <1161165948.7906.33.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3591 Lines: 101 --=-xO0IaBYpQdhczhnTKZTc Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Tue, 2006-10-17 at 13:22 -0700, Andrew Morton wrote: > On Tue, 17 Oct 2006 12:37:48 -0700 > Jeremy Fitzhardinge wrote: >=20 > > Andrew Morton wrote: > > > -generic-implementatation-of-bug.patch > > > -generic-implementatation-of-bug-fix.patch > > > +generic-bug-implementation.patch > > > generic-bug-for-i386.patch > > > generic-bug-for-x86-64.patch > > > uml-add-generic-bug-support.patch > > > use-generic-bug-for-ppc.patch > > > bug-test-1.patch > > > > > > Updated generic-BUG-handling patches > > > =20 > > I thought the powerpc patch had been given a clean bill of health? Or=20 > > was there still a problem with it? >=20 > No, last time I tested it the machine still froze after "returning from > prom_init". ie: before it had done any WARNs or BUGs. It's rather > mysterious. Works for me: Diego5:~# uname -a Linux Diego5 2.6.19-rc2-mm1-git #9 SMP Wed Oct 18 19:30:38 EST 2006 ppc64 G= NU/Linux Diego5:~# echo 4 > /proc/sys/vm/drop_caches Badness in drop_caches_sysctl_handler at /home/michael/src/auto/git/fs/drop= _caches.c:67 Call Trace: [C0000000431F7760] [C00000000000F8E4] .show_stack+0x6c/0x1a0 (unreliable) [C0000000431F7800] [C000000000447B8C] .program_check_exception+0x19c/0x5cc [C0000000431F78A0] [C00000000000446C] program_check_common+0xec/0x100 --- Exception: 700 at .drop_caches_sysctl_handler+0x5c/0x88 LR =3D .drop_caches_sysctl_handler+0x20/0x88 [C0000000431F7C20] [C00000000005725C] .do_rw_proc+0x168/0x230 [C0000000431F7CF0] [C0000000000BC76C] .vfs_write+0xd0/0x1b4 [C0000000431F7D90] [C0000000000BD134] .sys_write+0x4c/0x8c [C0000000431F7E30] [C00000000000861C] syscall_exit+0x0/0x40 Diego5:~# echo 8 > /proc/sys/vm/drop_caches kernel BUG in drop_caches_sysctl_handler at /home/michael/src/auto/git/fs/d= rop_caches.c:69! cpu 0xd: Vector: 700 (Program Check) at [c0000000431f7910] pc: c0000000000e3a5c: .drop_caches_sysctl_handler+0x68/0x88 lr: c0000000000e3a14: .drop_caches_sysctl_handler+0x20/0x88 sp: c0000000431f7b90 msr: 8000000000029032 current =3D 0xc00000000fc8c810 paca =3D 0xc000000000564e00 pid =3D 1465, comm =3D bash kernel BUG in drop_caches_sysctl_handler at /home/michael/src/auto/git/fs/d= rop_caches.c:69! enter ? for help [c0000000431f7c20] c00000000005725c .do_rw_proc+0x168/0x230 [c0000000431f7cf0] c0000000000bc76c .vfs_write+0xd0/0x1b4 [c0000000431f7d90] c0000000000bd134 .sys_write+0x4c/0x8c [c0000000431f7e30] c00000000000861c syscall_exit+0x0/0x40 --- Exception: c01 (System Call) at 000000000fec9aac SP (ff8416f0) is in userspace d:mon>=20 There's some NUMA badness going around that you might be hitting. cheers --=20 Michael Ellerman OzLabs, IBM Australia Development Lab wwweb: http://michael.ellerman.id.au phone: +61 2 6212 1183 (tie line 70 21183) We do not inherit the earth from our ancestors, we borrow it from our children. - S.M.A.R.T Person --=-xO0IaBYpQdhczhnTKZTc Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) iD8DBQBFNfx8dSjSd0sB4dIRAgLxAKCV0R0ZMZ8xGT9L3IIZA/WPqHINDACfTUTW N9hV87S6MqNR1RLARAV3hEU= =qHug -----END PGP SIGNATURE----- --=-xO0IaBYpQdhczhnTKZTc-- - 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/