From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [203.10.76.45]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mx.ozlabs.org", Issuer "CA Cert Signing Authority" (verified OK)) by bilbo.ozlabs.org (Postfix) with ESMTPS id 004C4B7079 for ; Mon, 27 Jul 2009 18:45:51 +1000 (EST) Received: from bilbo.ozlabs.org (bilbo.ozlabs.org [203.10.76.25]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "bilbo.ozlabs.org", Issuer "CAcert Class 3 Root" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id E3257DDD04 for ; Mon, 27 Jul 2009 18:45:50 +1000 (EST) Subject: Re: "test" branch update From: Michael Ellerman To: Benjamin Herrenschmidt In-Reply-To: <1248668057.5706.2.camel@pasglop> References: <1248668057.5706.2.camel@pasglop> Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-q4XGK9PCucdvaFATg29h" Date: Mon, 27 Jul 2009 18:45:50 +1000 Message-Id: <1248684350.4691.19.camel@concordia> Mime-Version: 1.0 Cc: linuxppc-dev list Reply-To: michael@ellerman.id.au List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --=-q4XGK9PCucdvaFATg29h Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Mon, 2009-07-27 at 14:14 +1000, Benjamin Herrenschmidt wrote: > Hi ! >=20 > I've started collecting things for my -next branch. For now I put > everything in -test, I'll move it over to -next in the upcoming couple > of days if there's no major issue found. I'm seeing this on Power 6 (Didgo3), haven't had a chance to look any closer, 100% reproducible, using SLUB. HugeTLB registered 16 MB page size, pre-allocated 0 pages HugeTLB registered 16 GB page size, pre-allocated 0 pages HugeTLB registered 64 KB page size, pre-allocated 0 pages Unable to handle kernel paging request for data at address 0x00000000 Faulting instruction address: 0xc00000000003ea98 cpu 0x0: Vector: 300 (Data Access) at [c0000000fe6e3840] pc: c00000000003ea98: .strcmp+0x10/0x24 lr: c0000000001c8e60: .sysfs_find_dirent+0x3c/0x78 sp: c0000000fe6e3ac0 msr: 8000000000009032 dar: 0 dsisr: 40000000 current =3D 0xc0000000fe6d8000 paca =3D 0xc000000000ab3200 pid =3D 1, comm =3D swapper enter ? for help [link register ] c0000000001c8e60 .sysfs_find_dirent+0x3c/0x78 [c0000000fe6e3ac0] c0000000001c939c .sysfs_addrm_start+0x70/0xec (unreliable) [c0000000fe6e3b50] c0000000001c6f50 .sysfs_hash_and_remove+0x58/0xb0 [c0000000fe6e3c10] c0000000001ca8a4 .sysfs_remove_link+0x4c/0x6c [c0000000fe6e3cb0] c00000000014612c .sysfs_slab_alias+0x64/0x154 [c0000000fe6e3d60] c00000000090e22c .slab_sysfs_init+0xd4/0x130 [c0000000fe6e3e00] c000000000009848 .do_one_initcall+0x90/0x1b8 [c0000000fe6e3ef0] c0000000008ef4c0 .kernel_init+0x1f8/0x278 [c0000000fe6e3f90] c00000000002f570 .kernel_thread+0x54/0x70 0:mon> r R00 =3D c0000000001c6f50 R16 =3D 0000000000000000 R01 =3D c0000000fe6e3ac0 R17 =3D 0000000004d2dbb8 R02 =3D c000000000a72248 R18 =3D c00000000092da50 R03 =3D 0000000000000073 R19 =3D 0000000000000000 R04 =3D ffffffffffffffff R20 =3D 0000000002f1fed0 R05 =3D c0000000feb70460 R21 =3D 0000000004d2da78 R06 =3D c0000000fec19640 R22 =3D 0000000004400000 R07 =3D 0000000000000001 R23 =3D c00000000092da48 R08 =3D ffffffffffffffff R24 =3D c00000000092da58 R09 =3D c000000000bd6080 R25 =3D 00000000010ad378 R10 =3D 0000000000000816 R26 =3D c000000000aa7ac0 R11 =3D 0000000000000012 R27 =3D 0000000000000000 R12 =3D 0000000024000084 R28 =3D 0000000000000000 R13 =3D c000000000ab3200 R29 =3D c0000000fec19690 R14 =3D 0000000000000000 R30 =3D c0000000009ddd98 R15 =3D 0000000000000000 R31 =3D c0000000fe6e3ac0 pc =3D c00000000003ea98 .strcmp+0x10/0x24 lr =3D c0000000001c8e60 .sysfs_find_dirent+0x3c/0x78 msr =3D 8000000000009032 cr =3D 24000048 ctr =3D 0000000000000000 xer =3D 000000002000000b trap =3D 300 dar =3D 0000000000000000 dsisr =3D 40000000 0:mon> --=-q4XGK9PCucdvaFATg29h Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEABECAAYFAkptaT0ACgkQdSjSd0sB4dL0ZwCfWMBgaA0Ah5NLlpxsaaxZM2fA ZBEAoJfcBATjdsdTFNAXhIMqt+mVQGFF =IWuB -----END PGP SIGNATURE----- --=-q4XGK9PCucdvaFATg29h--